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1 2009-02-19 Akim Demaille <demaille@gostai.com>
2
3 Extract variant.hh
4 * data/variant.hh: New, extracted from...
5 * data/lalr1.cc: here.
6 Adjust.
7 * data/local.mk: Adjust.
8
9 2009-02-19 Akim Demaille <demaille@gostai.com>
10
11 Extract stack.hh from lalr1.cc.
12 * data/stack.hh: New.
13 * data/lalr1.cc: Extract from here.
14 * data/local.mk: Adjust.
15
16 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
17
18 Add reminder about uploading public key to keys.gnupg.net.
19 * HACKING (Release Procedure): Here.
20
21 2009-01-28 Akim Demaille <demaille@gostai.com>
22
23 * NEWS: Update information about 2.4.1 and 2.4.2.
24
25 2008-11-04 Akim Demaille <demaille@gostai.com>
26
27 Reformat NEWS.
28 * NEWS: Use more outline-mode markup.
29 Suggested by Jim Meyering.
30
31 2009-01-08 Akim Demaille <demaille@gostai.com>
32
33 Fix grep portability issues.
34 Grep on Solaris does not support -q.
35 Reported by Summum Bonum.
36
37 * NEWS: Add a stub for 2.4.2.
38 * THANKS: Add Summum Bonum.
39 * tests/atlocal.in (EGREP): New.
40 (CC, CXX, XSLTPROC): Make it possible to override them via
41 envvars.
42 * tests/java.at: Use $EGREP instead of egrep.
43 Use AT_CHECK's ignore instead of grep's -q.
44
45 2008-12-11 Akim Demaille <demaille@gostai.com>
46
47 Pass the token type to yysyntax_error.
48 * data/yacc.c (yysyntax_error): Take the transated token instead
49 of the raw number.
50 Adjust callers.
51 * TODO: Update.
52
53 2008-12-11 Akim Demaille <demaille@gostai.com>
54
55 Formatting changes.
56 * data/glr.c: Formatting changes.
57
58 2008-12-11 Akim Demaille <demaille@gostai.com>
59
60 Propagate i18n changes into glr.c.
61 * TODO: Update.
62 * data/glr.c (yyreportSyntaxError): Use "switch" instead of
63 building the error message format dynamically.
64 * data/lalr1.java: Formatting changes.
65
66 2008-12-11 Akim Demaille <demaille@gostai.com>
67
68 Use testsuite -C.
69 * tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
70 Solves problems when top_srcdir is an absolute path.
71 Suggested by Eric Blake.
72 * configure.ac: Require Autoconf 2.62.
73
74 2008-12-11 Akim Demaille <demaille@gostai.com>
75
76 Simplify the i18n of the error messages.
77 * data/lalr1.cc: Comment changes.
78 * data/yacc.c (yysyntax_error): Rewrite, using a switch as in
79 lalr1.cc instead of building dynamically the format string.
80
81 2008-12-08 Akim Demaille <demaille@gostai.com>
82
83 Fix portability issue in the test suite.
84 * tests/local.at (AT_MATCHES_CHECK): New.
85 Based on Perl instead of Sed. Sed has too many portability
86 pitfalls, not ever Sed is GNU Sed.
87 * tests/actions.at (Fix user actions without a trailing semicolon):
88 Use it.
89
90 2008-12-08 Akim Demaille <demaille@gostai.com>
91
92 Update data/README.
93 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
94
95 2008-12-08 Akim Demaille <demaille@gostai.com>
96
97 Install autoconf as a submodule to get m4sugar.
98 * .gitmodules: Add submodules/autoconf.
99 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
100 submodules/autoconf.
101
102 2008-12-08 Akim Demaille <demaille@gostai.com>
103
104 Test token.prefix in all the skeletons.
105 * data/java.m4 (b4_token_enum): Use the token.prefix.
106 * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
107 * tests/calc.at (_AT_DATA_CALC_Y): Use it.
108 Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
109 * tests/java.at: Comment changes.
110 (AT_CHECK_JAVA_MINIMAL): Define the END token.
111 (Java parser class and package names): Add token.prefix check.
112
113 2008-12-08 Akim Demaille <demaille@gostai.com>
114
115 Fix regeneration of atconfig.
116 * tests/local.mk (tests/atconfig): The rule was incorrect, but
117 remove it: now that there is no tests/Makefile.am, the top-level
118 Makefile properly updates atconfig when needed.
119
120 2008-12-07 Di-an Jan <dianj@freeshell.org>
121
122 Implement the FIXME that ends an user action with a semicolon
123 if it seems necessary.
124 * src/scan-code.l (flex rules section): Flag cpp directive from
125 any `#' to the first unescaped end-of-line. Semicolon is not
126 needed after `;', `{', '}', or cpp directives and is needed after
127 any other token (whitespaces and comments have no effect).
128 * tests/actions.at (Fix user actions without a trailing semicolon):
129 New test.
130 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
131 to make user actions complete statements.
132 Adjust column numbers in error messages.
133 * tests/regression.at (Fix user actions without a trailing semicolon):
134 Remove. Covered by new test.
135
136 2008-12-07 Akim Demaille <demaille@gostai.com>
137
138 Update gnulib.
139 * gnulib: Update from master.
140
141 2008-12-05 Eric Blake <ebb9@byu.net>
142
143 Avoid compiler warning.
144 * src/output.c (muscle_insert_item_number_table): Delete unused
145 function.
146
147 2008-12-02 Eric Blake <ebb9@byu.net>
148
149 Build testsuite with newer autoconf.
150 * tests/output.at (m4_expand): Don't override in newer autoconf,
151 where the underlying implementation changed.
152 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
153 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
154 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
155 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
156 since some of them contain unbalanced ')'.
157
158 2008-12-01 Akim Demaille <demaille@gostai.com>
159
160 Use b4_symbol for printers and destructors everywhere.
161 * data/bison.m4 (b4_symbol_action_location): New.
162 * data/c.m4 (b4_symbol_actions): Remove.
163 Adjust all callers to use by b4_symbol_foreach and the corresponding
164 b4_symbol_printer/destructor macro.
165 * data/glr.cc: Adjust.
166 * data/lalr1.java: Adjust the %destructor sanity check.
167 * src/output.c (symbol_code_props_output): Remove, we no longer
168 need the b4_symbol_printers/destructors tables.
169
170 2008-12-01 Akim Demaille <demaille@gostai.com>
171
172 Use b4_symbol_case_.
173 * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
174 b4_symbol_case_.
175
176 2008-12-01 Akim Demaille <demaille@gostai.com>
177
178 Move b4_symbol based macro to bison.m4.
179 * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
180 (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
181 (b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
182 (b4_type_foreach): Move to...
183 * data/bison.m4: Here.
184 * data/lalr1.cc (b4_symbol_action): Specialize for C++: use
185 b4_symbol_value_template instead of b4_symbol_value.
186
187 2008-12-01 Akim Demaille <demaille@gostai.com>
188
189 b4_symbol/type_foreach.
190 * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
191 Use them.
192
193 2008-12-01 Akim Demaille <demaille@gostai.com>
194
195 Use the symbol properties to output the printer/destructor for lalr1.cc.
196 Instead of defining complex list of tuples to define various
197 properties of the symbols, we now prefer to define symbols as
198 "structs" in m4: using the symbol key (its number), and the
199 property name, b4_symbol gives it value. Use this to handle
200 destructors and printers.
201
202 * src/output.c (CODE_PROP): New.
203 (prepare_symbol_definitions): Use it to define the printer and
204 destructor related attributes of the symbols.
205 * data/lalr1.cc (b4_symbol_actions): Rename as...
206 (b4_symbol_action): this.
207 Use b4_symbol instead of 6 arguments.
208 (b4_symbol_printer, b4_symbol_destructor): New.
209 Use them instead of b4_symbol_actions.
210
211 2008-12-01 Akim Demaille <demaille@gostai.com>
212
213 Avoid capturing variables too easily.
214 * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
215 v__ and p__ instead of v and p.
216
217 2008-12-01 Akim Demaille <demaille@gostai.com>
218
219 Remove spurious empty line before syncline.
220 * data/bison.m4 (b4_syncline): Don't output an empty line before
221 the output.
222
223 2008-11-26 Akim Demaille <demaille@gostai.com>
224
225 Convert lib/Makefile.am into lib/local.mk.
226 The real problem is rather gnulib.mk, which itself is extracted
227 from a Makefile.am that gnulib expects to the "recursive". The
228 tool prefix-gnulib-mk converts such a gnulib.mk to be
229 non-recursive. Also, some AC_SUBST variables need to be adjusted.
230
231 * etc/prefix-gnulib-mk: New.
232 * bootstrap (slurp): Use it to convert further gnulib.mk.
233 No longer try to avoid re-creation of lib/gnulib.mk as the changes
234 are deeper.
235 * lib/Makefile.am: Rename as...
236 * lib/local.mk: this.
237 Adjust to be prefixed.
238 * Makefile.am, configure.ac: Adjust.
239 * src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
240
241 2008-11-26 Akim Demaille <demaille@gostai.com>
242
243 s/_FLAGS/FLAGS/.
244 * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
245 (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
246 Reported by Eric Blake.
247
248 2008-11-26 Akim Demaille <demaille@gostai.com>
249
250 Use b4_parser_tables_define in glr.cc.
251 * data/glr.c: Use b4_parser_tables_define instead of defining the
252 (deterministic integral) tables by hand.
253
254 2008-11-26 Akim Demaille <demaille@gostai.com>
255
256 Use b4_parser_tables_define in Java.
257 * data/java.m4 (b4_typed_parser_table): Rename as...
258 (b4_typed_parser_table_define): this, for consistency.
259 Accept a comment as $4.
260 Move $2 into yy*_.
261 (b4_integral_parser_table): Rename as...
262 (b4_integral_parser_table_define): this.
263 * data/lalr1.java: Adjust all uses.
264 Use b4_parser_tables_define instead of generation by hand.
265
266 2008-11-26 Akim Demaille <demaille@gostai.com>
267
268 Prepare the convergence bw C style and Java table generation.
269 * data/bison.m4 (b4_tables_map, b4_tables_declare)
270 (b4_tables_define): Rename as...
271 (b4_integral_parser_tables_map, b4_parser_tables_declare)
272 (b4_parser_tables_define): these.
273 * data/c.m4 (b4_table_define): Rename as...
274 (b4_integral_parser_table_define): this.
275 * data/lalr1.cc: Adjust.
276 (b4_table_define, b4_table_declare): Rename as...
277 (b4_integral_parser_table_define)
278 (b4_integral_parser_table_declare): these.
279 (yyrline_): Move the comment where it is actually used.
280 * data/yacc.c: Adjust.
281 (yyrline): Use b4_integral_parser_table_define.
282
283 2008-11-26 Akim Demaille <demaille@gostai.com>
284
285 Regen.
286 * src/parse-gram.h, src/parse-gram.c: Regen.
287
288 2008-11-26 Akim Demaille <demaille@gostai.com>
289
290 Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
291 * data/lalr1.cc (b4_tables_map): Move to...
292 * data/bison.m4: here.
293 Update the comment for yytable during the flight.
294 (b4_tables_declare, b4_tables_define): New.
295 * data/lalr1.cc: Use them.
296 * data/c.m4 (b4_table_define): New.
297 * data/yacc.c: Use b4_tables_define instead of output the tables
298 by hand.
299 * tests/regression.at (Web2c Actions): Adjust the expected output,
300 the order of the tables changed.
301
302 2008-11-26 Akim Demaille <demaille@gostai.com>
303
304 Get rid of (yy)rhs and (yy)prhs.
305 These tables are no longer needed in the parsers, and they don't seem to
306 be useful. They are not documented either.
307
308 * src/output.c (prepare_rules): Get rid of rhs and prhs.
309 Adjust the computation of (yy)r2.
310
311 2008-11-26 Akim Demaille <demaille@gostai.com>
312
313 Rule length is unsigned.
314 * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
315
316 2008-11-26 Akim Demaille <demaille@gostai.com>
317
318 Get rid of lalr1-split.cc.
319 It was no longer maintainer.
320
321 * data/lalr1-split.cc: Remove.
322 * etc/bench.pl.in (bench_fusion_parser): Remove.
323 Adjust.
324
325 2008-11-26 Akim Demaille <demaille@gostai.com>
326
327 Use yy* consistently.
328 * data/glr.c: Now that yyrhs no longer exists as a global
329 variable, rename local "rhs" variables into "yyrhs" for
330 consistency.
331
332 2008-11-25 Akim Demaille <demaille@gostai.com>
333
334 Get rid of yyrhs and yyprhs in glr.c.
335 * data/glr.c (yyrhs, yyprhs): Remove.
336 Instead, use the state stack and yystos.
337
338 2008-11-25 Akim Demaille <demaille@gostai.com>
339
340 Flag glr tests.
341 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
342 as an Autotest keyword.
343
344 2008-11-25 Akim Demaille <demaille@gostai.com>
345
346 Prefer TESTSUITE_FLAGS.
347 TESTSUITEFLAGS is barely readable.
348
349 * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
350 for backward compatibility.
351 Use the former instead of the latter.
352
353 2008-11-25 Akim Demaille <demaille@gostai.com>
354
355 Get rid of yyrhs and yyprhs in larl1.java.
356 * data/lalr1.java (yyrhs_, yyprhs_): Remove.
357 (yy_reduce_print): Rather, use yystos_ and the state stack.
358
359 2008-11-25 Akim Demaille <demaille@gostai.com>
360
361 Formatting changes.
362
363 2008-11-25 Akim Demaille <demaille@gostai.com>
364
365 Get rid of yyrhs and yyprhs in yacc.c.
366 They were used to get the symbol types, given a rule number, when
367 displaying the top of the stack before a reduction. But the
368 symbol type is available from the state stack. This has two be
369 benefits: two tables less in the parser (making it smaller), and a
370 more consistent use of the three stacks which will help to fuse
371 them.
372
373 * data/yacc.c (yyprhs, yyrhs): Remove.
374 (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
375 (yy_reduce_print): Take yyssp as argument.
376 Use it, together with yystos, to get the symbol type.
377 * tests/regression.at (Web2c Report): Remove these tables from the
378 expected output.
379
380 2008-11-25 Akim Demaille <demaille@gostai.com>
381
382 b4_tables_map.
383 The point is to factor the generation of the tables across skeletons.
384 This is language dependant.
385
386 * data/c.m4 (b4_comment_): New.
387 Should be usable to define how to generate tables independently of
388 the language.
389 (b4_c_comment): New.
390 (b4_comment): Bounce to b4_c_comment.
391 Now support $2 = [PREFIX] for indentation.
392 * data/lalr1.cc (b4_table_declare): Don't output a comment if
393 there is no comment.
394 Indent it properly when there is one.
395 Output the ending semicolon.
396 (b4_table_define): Space changes.
397 Output the ending semicolon.
398 (b4_tables_map): New.
399 Use it twice instead of declaring and defining the (integral)
400 tables by hand.
401
402 2008-11-25 Akim Demaille <demaille@gostai.com>
403
404 b4_table_declare.
405 * data/lalr1.cc (b4_table_declare): New.
406 Use it to declare the tables defined with b4_table_define.
407 (b4_table_define): Declare a third arg to match b4_table_declare
408 signature.
409 Move all the comments around invocations of b4_table_define into
410 the invocations itselves.
411 Move things around to have the order for declarations and
412 definitions.
413
414 2008-11-25 Akim Demaille <demaille@gostai.com>
415
416 Formatting changes.
417 * data/lalr1.java: here.
418
419 2008-11-25 Akim Demaille <demaille@gostai.com>
420
421 b4_args is more general than only C++.
422 * data/lalr1.cc (b4_args, _b4_args): Move to...
423 * data/bison.m4: here.
424
425 2008-11-21 Di-an Jan <dianj@freeshell.org>
426
427 Implement no-XXX arguments for --warnings, --report, --trace.
428 * src/getargs.c (flags_argmatch): Handles no-XXX.
429 Fix typo in doxygen comment.
430
431 2008-11-21 Akim Demaille <demaille@gostai.com>
432
433 Display the changes in cross-options.texi.
434 * build-aux/cross-options.pl ($sep): New, to separate items.
435 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
436 changes.
437
438 2008-11-20 Di-an Jan <dianj@freeshell.org>
439
440 Improves options in the manual.
441 * doc/bison.texinfo (-g, -x): Add space before argument.
442 (Option Cross Key): Implement FIXME: listing directives also.
443 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
444 (Short Option): Special case -d. Put arguments inside @option.
445 (Bison Directive): Add column, automatically extracted from
446 src/scan-gram.l (actual name passed as the first argument)
447 with special case for %define.
448 * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
449 to build-aux/cross-options.pl.
450 * src/getargs.c (usage): Document limitations of cross-options.pl.
451 * src/scan-gram.l: Likewise.
452
453 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
454
455 Fix unexpanded macros in GLR defines file.
456 Reported by Csaba Raduly at
457 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
458 * THANKS (Csaba Raduly): Add.
459 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
460 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
461 lexer in a separate module that includes the defines file.
462 (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
463 source.
464 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
465 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
466 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
467 (AT_DATA_SOURCE_PROLOGUE): New.
468 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
469 (AT_DATA_SOURCE): New.
470 (AT_FULL_COMPILE): Extend to support an additional source file.
471
472 2008-11-18 Akim Demaille <demaille@gostai.com>
473
474 More TODO.
475 * TODO: More short term issues.
476
477 2008-11-18 Akim Demaille <demaille@gostai.com>
478
479 Regen.
480 * src/parse-gram.h, src/parse-gram.c: Regen.
481
482 2008-11-18 Akim Demaille <demaille@gostai.com>
483
484 Use b4_subtract where possible.
485 * data/lalr1.cc (b4_subtract): Move to...
486 * data/bison.m4: here.
487 * data/glr.c (b4_rhs_data): Use it.
488 * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it.
489
490 2008-11-18 Akim Demaille <demaille@gostai.com>
491
492 Remove incorrect mode specification.
493 * data/glr.cc: Don't pretend it's C code.
494
495 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
496
497 Simplify last patch slightly.
498 * src/getargs.c (getargs): Here.
499
500 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
501
502 Fix last warning from --enable-gcc-warnings.
503 * src/getargs.c (getargs): Don't assign const address to non-const
504 pointer.
505
506 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
507
508 Don't let maintainer-*-check targets force a version update.
509 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
510 handled.
511
512 2008-11-17 Di-an Jan <dianj@freeshell.org>
513
514 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
515 Align menus. Adjust word wrapping. Use node names for menu names.
516 (Examples): Don't abbreviate node names.
517 (LocalWords): Remove abbreviations.
518 (Copying): Make description a sentence.
519 (Java Action Features): Remove period to match the rest of menu.
520
521 2008-11-17 Di-an Jan <dianj@freeshell.org>
522
523 Handles several --enable-gcc-warnings.
524 * src/getargs.c (command_line_location): Set parameters to void.
525 * src/output.c (symbol_type_name_cmp): Make static.
526 (symbols_by_type_name): Set parameters to void.
527 (symbol_definitions_output): Remove unused parameter. Rename as...
528 (prepare_symbol_definitions): this.
529 (muscles_output): Move symbol_definitions_output to...
530 (output): here as prepare_symbol_definitions.
531 * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main.
532 (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed.
533
534 2008-11-17 Di-an Jan <dianj@freeshell.org>
535
536 * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202.
537 Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests.
538
539 2008-11-16 Akim Demaille <demaille@gostai.com>
540
541 Add missing $(EXEEXT).
542 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is
543 "src/bison$(EXEEXT)".
544 Reported by Di-an Jan.
545
546 2008-11-15 Akim Demaille <demaille@gostai.com>
547
548 * TODO: Update.
549
550 2008-11-15 Akim Demaille <demaille@gostai.com>
551
552 Formatting changes.
553 * tests/input.at: here.
554
555 2008-11-15 Akim Demaille <demaille@gostai.com>
556
557 Remove duplicate header inclusion.
558 * src/LR0.c: here.
559
560 2008-11-15 Akim Demaille <demaille@gostai.com>
561
562 * src/parse-gram.h, src/parse-gram.c: Regen.
563
564 2008-11-15 Akim Demaille <demaille@gostai.com>
565
566 Support parametric types.
567
568 There are two issues to handle: first scanning nested angle
569 bracket pairs to support types such as std::pair< std::string,
570 std::list<std::string> > >.
571
572 Another issue is to address idiosyncracies of C++: do not glue two
573 closing angle brackets together (otherwise it's operator>>), and
574 avoid sticking blindly a TYPE to the opening <, as it can result
575 in '<:' which is a digraph for '['.
576
577 * src/scan-gram.l (brace_level): Rename as...
578 (nesting): this.
579 (SC_TAG): New.
580 Implement support for complex tags.
581 (tag): Accept
582 , but not <.
583 * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template)
584 (b4_symbol_variant): Leave space around types as parameters.
585 * examples/variant.yy: Use nested template types and leading ::.
586 * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt):
587 Rename as...
588 (TAG, TAG_ANY, TAG_NONE, tag.opt): these.
589 * tests/c++.at: Test parametric types.
590
591 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
592
593 Test token.prefix.
594 This is not sufficient, but we test at least that the make_SYMBOL
595 interface is not affected by token.prefix. A more general test
596 will be implemented when the support of token.prefix is generalized
597 to more skeletons.
598
599 * tests/c++.at: One more variant test, using token.prefix.
600
601 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
602
603 Test the make_TOKEN interface.
604 * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
605 Factor the common code in yylex.
606 Use it to test "%define lex_symbol".
607
608 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
609
610 Formatting change.
611
612 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
613
614 Simplify code for variants bench marks.
615 * etc/bench.pl.in (&generate_grammar_list): Define and use
616 location_type.
617 Factor the common code in yylex.
618
619 2008-11-15 Akim Demaille <demaille@gostai.com>
620
621 Better error message.
622 * bootstrap (find_tool): Fix the error message.
623
624 2008-11-15 Akim Demaille <demaille@gostai.com>
625
626 Update variant.yy to newest interface.
627 * examples/variant.yy: Define lex_symbol.
628 Adjust.
629
630 2008-11-15 Akim Demaille <demaille@gostai.com>
631
632 Don't use locations in variant.yy.
633 * examples/variant.yy: Adjust to not using locations.
634
635 2008-11-15 Akim Demaille <demaille@gostai.com>
636
637 Comment changes.
638 * data/local.mk, etc/local.mk, examples/local.mk: Use Automake
639 comments for the license.
640
641 2008-11-15 Akim Demaille <demaille@gostai.com>
642
643 Remove tests/Makefile.am.
644 * tests/Makefile.am: Rename as...
645 * tests/local.mk: this.
646 * Makefile.am, configure.ac: Adjust.
647 * Makefile.am (DISTCLEANFILES): Define.
648 (maintainer-check, maintainer-xml-check, maintainer-push-check):
649 Remove, we no longer need to bounce to the real targets.
650
651 2008-11-15 Akim Demaille <demaille@gostai.com>
652
653 Comment changes.
654
655 2008-11-15 Akim Demaille <demaille@gostai.com>
656
657 djgpp/local.mk.
658 * Makefile.am (EXTRA_DIST): Move djgpp related part to...
659 * djgpp/local.mk: this new file.
660
661 2008-11-15 Akim Demaille <demaille@gostai.com>
662
663 Remove doc/Makefile.am.
664 * doc/Makefile.am: Rename as...
665 * doc/local.mk: this.
666 Adjust paths
667 * Makefile.am, configure.ac: Adjust.
668 * Makefile.am (MOSTLYCLEANFILES): New.
669 * src/local.mk: Adjust.
670
671 2008-11-15 Akim Demaille <demaille@gostai.com>
672
673 Move sc_tight_scope into maint.mk.
674 It does not work, and I don't know how it was supposed to work: it
675 seems to be looking for sources in the build tree. I just moved
676 it at a better place, fixing it is still required.
677
678 * src/local.mk (echo): Remove.
679 (sc_tight_scope): Move to...
680 * maint.mk: here.
681
682 2008-11-15 Akim Demaille <demaille@gostai.com>
683
684 Regen.
685 * src/parse-gram.h, src/parse-gram.h: Regen.
686
687 2008-11-15 Akim Demaille <demaille@gostai.com>
688
689 Remove src/Makefile.am.
690 * src/Makefile.am: Rename as...
691 * src/local.mk: this.
692 Prefix all the paths with src/.
693 (AUTOMAKE_OPTIONS): Build object files in the sub dirs.
694 (AM_CPPFLAGS): Find find in builddir/src.
695 (YACC): Move the flags into...
696 (AM_YFLAGS): here.
697 * maint.mk (sc_tight_scope): Disable.
698 It used to bounce to the version in src/Makefile.am which is now
699 part of this very Makefile.
700 * Makefile.am, configure.ac: Adjust.
701 * src/scan-code-c.c, src/scan-code.l: We can no longer rely on
702 include "..." to find files "here": we are no longer in src/, so
703 qualify the includes with src/.
704 * doc/Makefile.am (PREPATH): No longer include the top_builddir
705 prefix.
706 (.x.1): Adjust to be able to create src/foo from the top level
707 Makefile, instead of going bounce to src/Makefile the creation of
708 foo.
709
710 2008-11-15 Akim Demaille <demaille@gostai.com>
711
712 Remove useless variable.
713 * doc/Makefile.am (srcsrcdir): Remove.
714
715 2008-11-15 Akim Demaille <demaille@gostai.com>
716
717 Remove data/Makefile.am.
718 * data/Makefile.am: Rename as...
719 * data/local.mk: this.
720 Adjust paths.
721 * Makefile.am, configure.ac: Adjust.
722
723 2008-11-15 Akim Demaille <demaille@gostai.com>
724
725 Remove etc/Makefile.am.
726 * etc/Makefile.am: Rename as...
727 * etc/local.mk: this.
728 Adjust.
729 * Makefile.am, configure.ac: Adjust.
730
731 2008-11-15 Akim Demaille <demaille@gostai.com>
732
733 Remove examples/local.mk.
734 examples/calc++/Makefile.am might be interesting to keep as is, since
735 it is an example in itself.
736
737 * examples/Makefile.am: Rename as...
738 * examples/local.mk: this.
739 Adjust.
740 * Makefile.am, configure.ac: Adjust.
741
742 2008-11-15 Akim Demaille <demaille@gostai.com>
743
744 Remove build-aux/Makefile.am.
745 Recursive Makefiles are really way too slow, let's get rid of some of
746 them.
747
748 * build-aux/Makefile.am: Rename as...
749 * build-aux/local.mk: this.
750 Adjust paths.
751 * Makefile.am, configure.ac: Adjust.
752
753 2008-11-15 Akim Demaille <demaille@gostai.com>
754
755 Provide convenience constructors for locations and positions.
756 * data/location.cc (position::position): Accept file, line and
757 column as arguments with default values.
758 Always qualify initial line and column literals as unsigned.
759 (location::location): Provide convenience constructors.
760
761 2008-11-15 Akim Demaille <demaille@gostai.com>
762
763 Instead of using make_symbol<TOK_FOO>, generate make_FOO for each
764 token type.
765 Using template buys us nothing, and makes it uselessly complex to
766 construct a symbol. Besides, it could not be generalized to other
767 languages, while make_FOO would work in C/Java etc.
768
769 * data/lalr1.cc (b4_symbol_): New.
770 (b4_symbol): Use it.
771 (b4_symbol_constructor_declaration_)
772 (b4_symbol_constructor_definition_): Instead of generating
773 specializations of an overloaded template function, just generate
774 several functions whose names are forged from the token names
775 without the token.prefix.
776 (b4_symbol_constructor_declarations): Generate them for all the
777 symbols, not just by class of symbol type, now that instead of
778 specializing a function template by the token, we generate a
779 function named after the token.
780 (b4_symbol_constructor_specialization_)
781 (b4_symbol_constructor_specializations): Remove.
782 * etc/bench.pl.in: Adjust to this new API.
783
784 2008-11-13 Akim Demaille <demaille@gostai.com>
785
786 %define token.prefix.
787 Provide a means to add a prefix to the name of the tokens as
788 output in the generated files. Because of name clashes, it is
789 good to have such a prefix such as TOK_ that protects from names
790 such as EOF, FILE etc. But it clutters the grammar itself.
791
792 * data/bison.m4 (token.prefix): Empty by default.
793 * data/c.m4 (b4_token_enum, b4_token_define): Use it.
794 * data/lalr1.cc (b4_symbol): Ditto.
795
796 2008-11-13 Akim Demaille <demaille@gostai.com>
797
798 Compute at M4 time some of the subtractions.
799 * data/lalr1.cc (b4_subtract): New.
800 (b4_rhs_data): Use it.
801
802 2008-11-13 Akim Demaille <demaille@gostai.com>
803
804 symbol::token.
805 This allows the user to get the type of a token returned by yylex.
806
807 * data/lalr1.cc (symbol::token): New.
808 (yytoknum_): Define when %define lex_symbol, independently of
809 %debug.
810 (yytoken_number_): Move into...
811 (symbol::token): here, since that's the only use.
812 The other one is YYPRINT which was not officially supported
813 by lalr1.cc, and anyway it did not work since YYPRINT uses this
814 array under a different name (yytoknum).
815
816 2008-11-13 Akim Demaille <demaille@gostai.com>
817
818 YYERRCODE.
819 * TODO (YYERRCODE): Mention the case of $undef.
820
821 2008-11-13 Akim Demaille <demaille@gostai.com>
822
823 TODO: YYPRINT.
824 * TODO (YYPRINT): New.
825
826 2008-11-13 Akim Demaille <demaille@gostai.com>
827
828 Comment changes.
829 * data/lalr1.cc, data/yacc.c: Fix the description of the
830 yytranslate and yytoknum tables.
831
832 2008-11-13 Akim Demaille <demaille@gostai.com>
833
834 Define make_symbol in the header.
835 To reach good performances these functions should be inlined (yet
836 this is to measure precisely). To this end they must be available
837 to the caller.
838
839 * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
840 location_type with the class name.
841 Since will now be output in the header, declare "inline".
842 No longer use b4_symbol_constructor_specializations, but
843 b4_symbol_constructor_definitions in the header.
844 Don't call it in the *.cc file.
845
846 2008-11-13 Akim Demaille <demaille@gostai.com>
847
848 Define yytranslate in the header for lex_symbol.
849 * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
850 into the header file when using %define lex_symbol.
851 (yytranslate_): Declare inline.
852
853 2008-11-13 Akim Demaille <demaille@gostai.com>
854
855 Define the constructors of symbol_type in
856 b4_symbol_constructor_definitions.
857 The constructors are called by the make_symbol functions, which a
858 forthcoming patch will move elsewhere. Hence the interest of
859 putting them together.
860
861 The stack_symbol_type does not need to be moved, it is used only
862 by the parser.
863
864 * data/lalr1.cc: Move symbol_type and symbol_base_type
865 constructors into...
866 (b4_symbol_constructor_definitions): here.
867 Adjust.
868
869 2008-11-13 Akim Demaille <demaille@gostai.com>
870
871 Make it easier to move the definition of yytranslate_.
872 Forthcoming changes will make it possible to use yytranslate_
873 from outside the parser implementation file.
874
875 * data/lalr1.cc (b4_yytranslate_definition): New.
876 Use it.
877
878 2008-11-13 Akim Demaille <demaille@gostai.com>
879
880 Remove useless class specification.
881 * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
882 to refer to the class name to use a type defined by the class for
883 arguments of member functions.
884
885 2008-11-13 Akim Demaille <demaille@gostai.com>
886
887 Finer input type for yytranslate.
888 This patch is debatable: the tradition expects yylex to return an int
889 which happens to correspond to token_number (which is an enum). This
890 allows for instance to return characters (such as '*' etc.). But this
891 goes against the stronger typing I am trying to have with the new
892 lex interface which return a symbol_type. So in this case, feed
893 yytranslate_ with a token_type.
894
895 * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
896 expect a token_type.
897
898 2008-11-13 Akim Demaille <demaille@gostai.com>
899
900 Honor lex-params in %define lex_symbol mode.
901 * data/lalr1.cc: Use b4_lex_param.
902
903 2008-11-13 Akim Demaille <demaille@gostai.com>
904
905 Simplify names.
906 * src/output.c (symbol_definitions_output): Rename symbol
907 attributes type_name and has_type_name as type and has_type.
908 * data/lalr1.cc: Adjust uses.
909
910 2008-11-13 Akim Demaille <demaille@gostai.com>
911
912 Use b4_type_names for the union type.
913 The union used to compute the size of the variant used to iterate
914 over the type of all the symbols, with a lot of redundancy. Now
915 iterate over the lists of symbols having the same type-name.
916
917 * data/lalr1.cc (b4_char_sizeof_): New.
918 (b4_char_sizeof): Use it.
919 Adjust to be called with a list of numbers instead of a single
920 number.
921 Adjust its caller for new-line issues.
922
923 2008-11-13 Akim Demaille <demaille@gostai.com>
924
925 Define the "identifier" of a symbol.
926 Symbols may have several string representations, for instance if
927 they have an alias. What I call its "id" is a string that can be
928 used as an identifier. May not exist.
929
930 Currently the symbols which have the "tag_is_id" flag set are
931 those that don't have an alias. Look harder for the id.
932
933 * src/output.c (is_identifier): Move to...
934 * src/symtab.c (is_identifier): here.
935 * src/symtab.h, src/symtab.c (symbol_id_get): New.
936 * src/output.c (symbol_definitions_output): Use it to define "id"
937 and "has_id".
938 Remove the definition of "tag_is_id".
939 * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
940 "tag_is_id" were used to produce code.
941 We still use "tag" for documentation.
942
943 2008-11-11 Akim Demaille <demaille@gostai.com>
944
945 Locations are no longer required by lalr1.cc.
946 * data/lalr1.cc (_b4_args, b4_args): New.
947 Adjust all uses of locations to make them optional.
948 * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
949 (AT_CHECK_NAMESPACE): Check the use of locations.
950 * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
951 without locations with lalr1.cc.
952 Test these cases.
953 * tests/output.at: Check lalr1.cc with and without location
954 support.
955 * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
956 Don't use locations.
957
958 2008-11-11 Akim Demaille <demaille@gostai.com>
959
960 AT_FULL_COMPILE.
961 * tests/local.at (AT_FULL_COMPILE): New.
962 * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
963
964 2008-11-11 Akim Demaille <demaille@gostai.com>
965
966 Support parens in calc++.
967 * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
968 * examples/calc++/test (run): Check the expected output.
969 Adjust callers.
970 Check parens too.
971
972 2008-11-11 Akim Demaille <demaille@gostai.com>
973
974 Simplify lalr1.cc since %defines is mandatory.
975 * data/lalr1.cc: Remove useless calls to b4_defines_if.
976
977 2008-11-11 Akim Demaille <demaille@gostai.com>
978
979 TODO: yyfmt.
980 * TODO (yysyntax_error): New item.
981
982 2008-11-11 Akim Demaille <demaille@gostai.com>
983
984 Prefer M4 to CPP.
985 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
986 YYERROR_VERBOSE.
987
988 2008-11-11 Akim Demaille <demaille@gostai.com>
989
990 Support i18n of the parse error messages.
991 * TODO (lalr1.cc/I18n): Remove.
992 * data/lalr1.cc (yysyntax_error_): Support the translation of the
993 error messages, as done in yacc.c.
994 Stay within the yy* pseudo namespace.
995
996 2008-11-11 Akim Demaille <demaille@gostai.com>
997
998 More TODO.
999 * TODO (single stack, yysyntax_error): New.
1000
1001 2008-11-11 Akim Demaille <demaille@gostai.com>
1002
1003 Make it possible to return a symbol_type from yylex.
1004 * data/lalr1.cc (b4_lex_symbol_if): New.
1005 (parse): When lex_symbol is defined, expected yylex to return the
1006 complete lookahead.
1007 * etc/bench.pl.in (generate_grammar_list): Extend to support this
1008 yylex interface.
1009 (bench_variant_parser): Exercise it.
1010
1011 2008-11-11 Akim Demaille <demaille@gostai.com>
1012
1013 Remove useless bench case.
1014 * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
1015 no longer used.
1016
1017 2008-11-11 Akim Demaille <demaille@gostai.com>
1018
1019 Improve display of directives.
1020 * etc/bench.pl.in (parse_term): Don't add useless eol.
1021
1022 2008-11-11 Akim Demaille <demaille@gostai.com>
1023
1024 Use string_cast in the bench.
1025 * etc/bench.pl.in (generate_grammar_list): Define and use
1026 string_cast.
1027
1028 2008-11-11 Akim Demaille <demaille@gostai.com>
1029
1030 Replace yychar with a Boolean.
1031 * data/lalr1.cc (parse::yychar): Replace by...
1032 (parse::yyempty): this.
1033
1034 2008-11-11 Akim Demaille <demaille@gostai.com>
1035
1036 Factor the tables.
1037 * TODO: New item.
1038
1039 2008-11-11 Akim Demaille <demaille@gostai.com>
1040
1041 Let yytranslate handle the eof case.
1042 * data/lalr1.cc (yytranslate_): Handle the EOF case.
1043 Adjust callers.
1044 No longer expect yychar to be equal to yyeof_, rather, test the
1045 lookahead's (translated) kind.
1046
1047 2008-11-11 Akim Demaille <demaille@gostai.com>
1048
1049 yychar cannot be empty in yyerrlab.
1050 * TODO (yychar == yyempty_): New.
1051 * data/lalr1.cc: Remove the handling of this case.
1052 This eases forthcoming changes related to yychar and yytranslate.
1053
1054 2008-11-11 Akim Demaille <demaille@gostai.com>
1055
1056 Bench: syntactic sugar for %define/#define.
1057 * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
1058 (&bench_push_parser, bench_variant_parser): Use this feature.
1059 (&eat): New.
1060 Use it.
1061
1062 2008-11-11 Akim Demaille <demaille@gostai.com>
1063
1064 Less memory pressure on the "list" bench.
1065 * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
1066 the values, to limit memory pressure.
1067
1068 2008-11-11 Akim Demaille <demaille@gostai.com>
1069
1070 Introduce make_symbol.
1071 make_symbol provides a means to construct a full symbol (kind,
1072 value, location) in a single shot. It is meant to be a Symbol
1073 constructor, parameterized by the symbol kind so that overloading
1074 would prevent incorrect kind/value pairs. Unfortunately
1075 parameterized constructors do not work well in C++ (unless the
1076 parameter also appears as an argument, which is not acceptable),
1077 hence the use of a function instead of a constructor.
1078
1079 * data/lalr1.cc (b4_symbol_constructor_declaration_)
1080 (b4_symbol_constructor_declarations)
1081 (b4_symbol_constructor_specialization_)
1082 (b4_symbol_constructor_specializations)
1083 (b4_symbol_constructor_definition_)
1084 (b4_symbol_constructor_definitions): New.
1085 Use them where appropriate to generate declaration, declaration of
1086 the specializations, and implementations of the templated
1087 overloaded function "make_symbol".
1088 (variant::variant): Always define a default ctor.
1089 Also provide a copy ctor.
1090 (symbol_base_type, symbol_type): New ctor overloads for value-less
1091 symbols.
1092 (symbol_type): Now public, so that functions such as yylex can use
1093 it.
1094
1095 2008-11-11 Akim Demaille <demaille@gostai.com>
1096
1097 Inform m4 whether a tag is a valid id.
1098 * src/output.c (is_identifier): New.
1099 (symbol_definitions_output): Use it to define tag_is_id.
1100 But maybe this should be done at m4 level?
1101
1102 2008-11-11 Akim Demaille <demaille@gostai.com>
1103
1104 Test 214 was failing: it greps with a pattern containing [ ]*
1105 which obviously meant to catch spaces and tabs, but contained only
1106 spaces. Tabulations in sources are a nuisance, so to simplify the
1107 matter, get rid of all the tabulations in the Java sources. The
1108 other skeletons will be treated equally later.
1109
1110 * data/java.m4, data/lalr1.java: Untabify.
1111 * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
1112 tabulations are no longer generated.
1113
1114 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
1115
1116 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
1117 * configure.ac: Adjust usage.
1118 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
1119 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
1120 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
1121
1122 2008-11-10 Di-an Jan <dianj@freeshell.org>
1123
1124 Workaround Java's ``code too large'' problem for parser tables
1125 in most cases, by using one function per initialization.
1126 * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
1127 * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
1128 yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
1129 yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
1130 (yytname_): Use b4_typed_parser_table.
1131 * doc/bison.texinfo (Java Bison Interface): Add note on Java's
1132 ``code too large'' error.
1133
1134 2008-11-10 Di-an Jan <dianj@freeshell.org>
1135
1136 * NEWS: Document them.
1137
1138 General Java skeleton improvements.
1139 * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
1140 using gcj < 4.3 in the testsuite, according to comments in
1141 gnulib/m4/javacomp.m4.
1142 * data/java.m4 (stype, parser_class_name, lex_throws, throws,
1143 location_type, position_type): Remove extraneous brackets from
1144 b4_percent_define_default.
1145 (b4_lex_param, b4_parse_param): Remove extraneous brackets from
1146 m4_define and m4_define_default.
1147 * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
1148 which marks the end of user code with appropriate syncline, like all
1149 the other skeletons.
1150 (b4_user_post_prologue): Add. Don't silently drop.
1151 (yylex): Remove.
1152 (parse): Inline yylex.
1153 * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
1154 (%{...%}): Fix typo of %code imports.
1155 * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
1156
1157 Support annotations on parser class with %define annotations.
1158 * data/lalr1.java (annotations): Add to parser class modifier.
1159 * doc/bison.texinfo (Java Parser Interface): Document
1160 %define annotations.
1161 (Java Declarations Summary): Document %define annotations.
1162 * tests/java.at (Java parser class modifiers): Test annotations.
1163
1164 Do not generate code for %error-verbose unless requested.
1165 * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
1166 Make private. Make conditional on %error-verbose.
1167 (getErrorVerbose, setErrorVerbose): New.
1168 (yytnamerr_): Make conditional on %error-verbose.
1169 (yysyntax_error): Make some code conditional on %error-verbose.
1170 * doc/bison.texinfo (Java Bison Interface): Remove the parts
1171 about %error-verbose having no effect.
1172 (getErrorVerbose, setErrorVerbose): Document.
1173
1174 Move constants for token names to Lexer interface.
1175 * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
1176 * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
1177 (parse): Qualify EOF to Lexer.EOF.
1178 * doc/bison.texinfo (Java Parser Interface): Move documentation of
1179 EOF and token names to Java Lexer Interface.
1180 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
1181
1182 Make yyerror public.
1183 * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
1184 (yyerror): Change to public. Add Javadoc comments. Use longer
1185 parameter names. Make the body rather than the declarator
1186 conditional on %locations.
1187 * doc/bison.texinfo (yyerror): Document. Don't mark as protected.
1188
1189 Allow user to add code to the constructor with %code init.
1190 * data/java.m4 (b4_init_throws): New, for %define init_throws.
1191 * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
1192 Add %code init to the front of the constructor body.
1193 * doc/bison.texinfo (YYParser.YYParser): Document %code init
1194 and %define init_throws.
1195 (Java Declarations Summary): Document %code init and
1196 %define init_throws.
1197 * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
1198 (Java constructor init and init_throws): Add tests.
1199
1200 2008-11-10 Akim Demaille <demaille@gostai.com>
1201
1202 Update TODO.
1203 * TODO (-D): is implemented.
1204 (associativity): Same precedence must have the same associativity.
1205 For instance, how can a * b / c be parsed if * is %left and / is
1206 %right?
1207 (YYERRORCODE, YYFAIL, YYBACKUP): New.
1208
1209 2008-11-10 Akim Demaille <demaille@gostai.com>
1210
1211 Formatting changes.
1212
1213 2008-11-10 Akim Demaille <demaille@gostai.com>
1214
1215 More information about the symbols.
1216 * src/output.c (type_names_output): Document all the symbols,
1217 including those that don't have a type-name.
1218 (symbol_definitions_output): Define "is_token" and
1219 "has_type_name".
1220 * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
1221 type-name, now that they are defined too in b4_type_names.
1222
1223 2008-11-10 Akim Demaille <demaille@gostai.com>
1224
1225 Regen.
1226
1227 2008-11-10 Akim Demaille <demaille@gostai.com>
1228
1229 Make parser::yytranslate static.
1230 Small speedup (1%) on the list grammar. And makes yytranslate_
1231 available in non member functions.
1232
1233 * data/lalr1.cc (yytranslate_): Does not need to be a instance
1234 function.
1235
1236 2008-11-10 Akim Demaille <demaille@gostai.com>
1237
1238 Avoid trailing spaces.
1239 * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
1240 * data/lalr1.cc: Don't indent before rule and symbol actions, as
1241 they can be empty, and anyway this incorrectly indents the first
1242 action.
1243
1244 2008-11-10 Akim Demaille <demaille@gostai.com>
1245
1246 Comment changes.
1247
1248 2008-11-10 Akim Demaille <demaille@gostai.com>
1249
1250 Use "enum" for integral constants.
1251 This is just nicer to read, I observed no speedup.
1252
1253 * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
1254 (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
1255 (yyuser_token_number_max_, yyundef_token_): Move into...
1256 (yytranslate_): here.
1257
1258 2008-11-10 Akim Demaille <demaille@gostai.com>
1259
1260 Shortcuts in bench directives.
1261 * etc/bench.pl.in (parse_dirs): New.
1262 Use it.
1263 (bench_variant_parser, bench_fusion_parser): Use %s and %d.
1264 Create the benches in "benches/".
1265
1266 2008-11-10 Akim Demaille <demaille@gostai.com>
1267
1268 Formatting changes.
1269 * data/lalr1.cc: here.
1270
1271 2008-11-10 Akim Demaille <demaille@gostai.com>
1272
1273 Adjust verbose message to using emacs.
1274 * etc/bench.pl.in: Inform compilation-mode when we change the
1275 directory.
1276 (generate_grammar_list): Recognize %define "variant" in addition
1277 to %define variant.
1278
1279 2008-11-10 Akim Demaille <demaille@gostai.com>
1280
1281 Classify symbols by type-name.
1282 * src/uniqstr.h (UNIQSTR_CMP): New.
1283 * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
1284 (type_names_output): New.
1285 (muscles_output): Use it.
1286 * data/lalr1.cc (b4_symbol_action_): Remove.
1287 (b4_symbol_case_, b4_type_action_): New.
1288 Adjust uses of b4_symbol_action_ to use b4_type_action_.
1289
1290 2008-11-10 Akim Demaille <demaille@gostai.com>
1291
1292 Change the handling of the symbols in the skeletons.
1293 Before we were using tables which lines were the symbols and which
1294 columns were things like number, tag, type-name etc. It is was
1295 difficult to extend: each time a column was added, all the numbers had
1296 to be updated (you asked for colon $2, not for "tag"). Also, it was
1297 hard to filter these tables when only a subset of the symbols (say the
1298 tokens, or the nterms, or the tokens that have and external number
1299 *and* a type-name) was of interest.
1300
1301 Now instead of monolithic tables, we define one macro per cell. For
1302 instance "b4_symbol(0, tag)" is a macro name which contents is
1303 self-decriptive. The macro "b4_symbol" provides easier access to
1304 these cells.
1305
1306 * src/output.c (type_names_output): Remove.
1307 (symbol_numbers_output, symbol_definitions_output): New.
1308 (muscles_output): Call them.
1309 (prepare_symbols): Define b4_symbols_number.
1310
1311 2008-11-10 Akim Demaille <demaille@gostai.com>
1312
1313 --trace=muscles
1314 * src/getargs.h, src/getargs.c (trace_muscle): New.
1315 (trace_types, trace_args): Support it.
1316 * src/output.c (output_skeleton): Use it.
1317
1318 2008-11-10 Akim Demaille <demaille@gostai.com>
1319
1320 muscles_output.
1321 * src/output.c (muscles_output): New, extracted from...
1322 (output_skeleton): here.
1323 Adjust.
1324
1325 2008-11-10 Akim Demaille <demaille@gostai.com>
1326
1327 Formatting changes.
1328
1329 2008-11-10 Akim Demaille <demaille@gostai.com>
1330
1331 Update the variant example.
1332 * examples/variant.yy: Formatting changes.
1333 One stage build.
1334
1335 2008-11-10 Akim Demaille <demaille@gostai.com>
1336
1337 Support constructor with an argument.
1338 This improves the "list" bench by 2%.
1339
1340 * data/lalr1.cc (variant::build): Add an overloaded version with
1341 an argument.
1342 * tests/c++.at (AT_CHECK_VARIANT): Check it.
1343
1344 2008-11-10 Akim Demaille <demaille@gostai.com>
1345
1346 Test variants.
1347 * tests/c++.at (AT_CHECK_VARIANTS): New.
1348 Use it with and without %define assert.
1349
1350 2008-11-10 Akim Demaille <demaille@gostai.com>
1351
1352 Add %precedence support.
1353 Unfortunately it is not possible to reuse the %prec directive. This
1354 is because to please POSIX, we do not require to end the rules with a
1355 semicolon. As a result,
1356
1357 foo: bar %prec baz
1358
1359 is ambiguous: either a rule which precedence is that of baz, or a rule,
1360 and then a declaration of the precedence of the token baz.
1361
1362 * doc/bison.texinfo: Document %precedence.
1363 (Precedence Only): New.
1364 * src/assoc.h, src/assoc.c (precedence_assoc): New.
1365 * src/conflicts.c (resolve_sr_conflict): Support it.
1366 * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
1367 Parse it.
1368 * tests/calc.at: Use %precedence for NEG.
1369 * tests/conflicts.at (%precedence does not suffice)
1370 (%precedence suffices): New tests.
1371
1372 2008-11-09 Akim Demaille <demaille@gostai.com>
1373
1374 Make benches in a sub dirs.
1375 * etc/bench.pl.in ($dir): New.
1376 Use it.
1377 Check the use of constructors with an argument.
1378 (bench_variant_parser): Fix.
1379
1380 2008-11-09 Akim Demaille <demaille@gostai.com>
1381
1382 fix eof condition
1383
1384 2008-11-09 Akim Demaille <demaille@gostai.com>
1385
1386 Fix --help.
1387
1388 2008-11-09 Akim Demaille <demaille@gostai.com>
1389
1390 Require the generation of parse-gram.output.
1391 * src/Makefile.am (YACC): Pass --report=all.
1392
1393 2008-11-09 Akim Demaille <demaille@gostai.com>
1394
1395 Formatting changes.
1396
1397 2008-11-09 Akim Demaille <demaille@gostai.com>
1398
1399 Update TODO.
1400 * TODO: Remove obsolete items.
1401 Update others.
1402
1403 2008-11-09 Akim Demaille <demaille@gostai.com>
1404
1405 Enhance bench.pl.
1406 * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
1407 (@token, $grammar, $bench): New.
1408 (generate_grammar_variant): Rename as...
1409 (generate_grammar_list): this.
1410 (generate_grammar): Adjust.
1411 (bench_grammar): Rename as...
1412 (bench): this.
1413 Use it in the various bench-marking routines.
1414 (-b, -g): New options.
1415
1416 2008-11-09 Akim Demaille <demaille@gostai.com>
1417
1418 Use a static hierarchy for symbols in the C++ parser.
1419 * data/lalr1.cc (symbol_base_type, symbol_type)
1420 (stack_symbol_type): Make it a static hierarchy.
1421 Adjust dependencies.
1422
1423 2008-11-09 Akim Demaille <demaille@gostai.com>
1424
1425 bench.pl -d, --directive.
1426 * etc/bench.pl.in (@directive): New.
1427 (&bench_grammar): Use it.
1428 (&bench_list_grammar): New, to provide access to the "variant"
1429 grammar.
1430 Use it.
1431 (getopts): Support -d, --directive.
1432
1433 2008-11-09 Akim Demaille <demaille@gostai.com>
1434
1435 Use inline for small operations.
1436 * data/lalr1.cc (symbol_base_type, symbol_type)
1437 (stack_symbol_type): Declare constructor and other operations as
1438 inline.
1439 (yy_destroy_): Inline.
1440
1441 2008-11-09 Akim Demaille <demaille@gostai.com>
1442
1443 Introduce a hierarchy for symbols.
1444 * data/lalr1.cc (symbol_base_type, symbol_type): New.
1445 (data_type): Rename as...
1446 (stack_symbol_type): this.
1447 Derive from symbol_base_type.
1448 (yy_symbol_value_print_): Merge into...
1449 (yy_symbol_print_): this.
1450 Rename as...
1451 (yy_print_): this.
1452 (yydestruct_): Rename as...
1453 (yy_destroy_): this.
1454 (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
1455 (parser::parse): yyla is now of symbol_type.
1456 Use its type member instead of yytoken.
1457
1458 2008-11-09 Akim Demaille <demaille@gostai.com>
1459
1460 Rename data_type and stack_symbol_type.
1461 * data/lalr1.cc (data_type): Rename as...
1462 (stack_symbol_type): this.
1463
1464 2008-11-09 Akim Demaille <demaille@gostai.com>
1465
1466 Handle semantic value and location together.
1467 * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
1468 yydata.value and yydata.location.
1469 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
1470 (YY_SYMBOL_PRINT): Now take semantic value and location as a
1471 single arg.
1472 Adjust all callers.
1473 (yydestruct_): New overload for a stack symbol.
1474
1475 2008-11-09 Akim Demaille <demaille@gostai.com>
1476
1477 Push a complete symbol, not connected parts.
1478 * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
1479 state, value and location.
1480 Adjust callers.
1481
1482 2008-11-09 Akim Demaille <demaille@gostai.com>
1483
1484 Agregate yylval and yylloc.
1485 * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
1486 (parser::yyla): this.
1487
1488 2008-11-09 Akim Demaille <demaille@gostai.com>
1489
1490 Rely on the state stack to display reduction traces.
1491 To display rhs symbols before a reduction, we used information
1492 about the rule reduced, which required the tables yyrhs and
1493 yyprhs. Now use rely only on the state stack to get the same
1494 information.
1495
1496 * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
1497 Use them.
1498 (parser::yyrhs_, parser::yyprhs_): Remove.
1499 (parser::yy_reduce_print_): Use the state stack.
1500
1501 2008-11-09 Akim Demaille <demaille@gostai.com>
1502
1503 Fuse yyval and yyloc into yylhs.
1504 * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
1505 yylhs.
1506 (parse): Replace yyval and yyloc with yylhs.value and
1507 yylhs.location.
1508 After a user action, compute yylhs.state earlier.
1509 (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
1510 fresh error_token.
1511
1512 2008-11-09 Di-an Jan <dianj@freeshell.org>
1513
1514 Remove unused variable.
1515 * src/output.c (type_names_output): Remove unused variable sep.
1516
1517 2008-11-09 Paolo Bonzini <bonzini@gnu.org>
1518
1519 Change tests/output.at quoting.
1520 * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
1521 expanding arguments.
1522
1523 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
1524
1525 Don't add a semicolon to actions for %skeleton or %language.
1526 It breaks Java test cases as reported by Akim Demaille.
1527 * src/scan-code.l: Implement.
1528
1529 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
1530
1531 Clean up %skeleton and %language priority implementation.
1532 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
1533 remove static qualifier because others will soon need to see it.
1534 (language_prio): Likewise.
1535 (getargs): Use command_line_prio rather than 0.
1536 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
1537 enum fields.
1538 (skeleton_prio): Extern it.
1539 (language_prio): Extern it.
1540 * src/parse-gram.y: Use grammar_prio rather than 1.
1541
1542 2008-11-07 Akim Demaille <demaille@gostai.com>
1543
1544 Moving push traces into yypush_.
1545 * data/lalr1.cc (yypush_): Now takes a optional trace message.
1546 Adjust all uses.
1547
1548 2008-11-07 Akim Demaille <demaille@gostai.com>
1549
1550 The single-stack C++ parser is now the standard one.
1551 * data/lalr1.cc: Rename as...
1552 * data/lalr1-split.cc: this.
1553 * data/lalr1-fusion.cc: Rename as...
1554 * data/lalr1.cc: this.
1555 * etc/bench.pl.in: Adjust.
1556
1557 2008-11-07 Akim Demaille <demaille@gostai.com>
1558
1559 Avoid empty-if warnings.
1560 Reported by Quentin Hocquet.
1561
1562 * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
1563 (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
1564
1565 2008-11-07 Akim Demaille <demaille@gostai.com>
1566
1567 Pass command line location to skeleton_arg and language_argmatch.
1568 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
1569 The location argument is now mandatory.
1570 Adjust all dependencies.
1571 (getargs): Use command_line_location.
1572
1573 2008-11-07 Akim Demaille <demaille@gostai.com>
1574
1575 -D, --define.
1576 * src/getargs.c (usage): Document -D.
1577 Fix help string for --locations.
1578 (command_line_location): New.
1579 (short_options, long_options, getargs): Support -D, --define.
1580 (getargs): Move -d support at the right place.
1581 * doc/bison.texinfo (Bison Options): Update.
1582 * tests/input.at (%define, --define): New.
1583
1584 2008-11-07 Akim Demaille <demaille@gostai.com>
1585
1586 Initialize the muscle table before parsing the command line.
1587 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
1588 (getargs): Define file_name.
1589 * src/main.c (main): Initialize muscle_tab before calling
1590 getargs.
1591 * src/muscle_tab.c (muscle_init): No longer define file_name, as
1592 its value is not available yet.
1593
1594 2008-11-07 Akim Demaille <demaille@gostai.com>
1595
1596 Locations without columns for command line arguments.
1597 * src/location.c (location_print): Don't display negative columns.
1598 * src/location.h: Document this.
1599
1600 2008-11-07 Akim Demaille <demaille@gostai.com>
1601
1602 Fix --help.
1603 * src/getargs.c (usage): Fix help string for -W.
1604
1605 2008-11-07 Akim Demaille <demaille@gostai.com>
1606
1607 Handle more general types of option arguments.
1608 * build-aux/cross-options.pl: The argument ends at the first
1609 space, not the first non-symbol character.
1610 Use @var for each word appearing the argument description.
1611
1612 2008-11-07 Akim Demaille <demaille@gostai.com>
1613
1614 Destroy the variants that remain on the stack in case of error.
1615 * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
1616 destructor.
1617 Display the value only if yymsg is nonnull.
1618 (yyreduce): Invoke yydestruct_ when popping lhs symbols.
1619
1620 2008-11-07 Akim Demaille <demaille@gostai.com>
1621
1622 Add "%define assert" to variants.
1623 This is used to help the user catch cases where some value gets
1624 ovewritten by a new one. This should not happen, as this will
1625 probably leak.
1626
1627 Unfortunately this uncovered a bug in the C++ parser itself: the
1628 lookahead value was not destroyed between two calls to yylex. For
1629 instance if the previous lookahead was a std::string, and then an int,
1630 then the value of the std::string was correctly taken (i.e., the
1631 lookahead was now an empty string), but std::string structure itself
1632 was not reclaimed.
1633
1634 This is now done in variant::build(other&) (which is used to take the
1635 value of the lookahead): other is not only stolen from its value, it
1636 is also destroyed. This incurs a new performance penalty of a few
1637 percent, and union becomes faster again.
1638
1639 * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
1640 (b4_variant_if): New.
1641 (variant::built): New.
1642 Use it whereever the status of the variant changes.
1643 * etc/bench.pl.in: Check the penalty of %define assert.
1644
1645 2008-11-07 Akim Demaille <demaille@gostai.com>
1646
1647 Use "%define variant" in bench.pl.
1648 * etc/bench.pl.in: No longer use the pseudo directive %variants,
1649 just use %define variants.
1650
1651 2008-11-07 Akim Demaille <demaille@gostai.com>
1652
1653 Regen.
1654 * src/parse-gram.h, src/parse-gram.c: Regen.
1655
1656 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
1657
1658 Fix user actions without a trailing semicolon.
1659 Reported by Sergei Steshenko at
1660 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
1661 * THANKS (Sergei Steshenko): Add.
1662 * src/scan-code.l (SC_RULE_ACTION): Fix it.
1663 * tests/regression.at (Fix user actions without a trailing semicolon):
1664 New test case.
1665
1666 2008-11-04 Akim Demaille <demaille@gostai.com>
1667
1668 Use b4_copyright_years.
1669 * data/yacc.c (b4_copyright_years): New.
1670 Fix its value according to the comments in the file.
1671 Use it and undefine it.
1672
1673 2008-11-04 Akim Demaille <demaille@gostai.com>
1674
1675 Formatting changes.
1676 * data/lalr1-fusion.cc, src/parse-gram.y: here.
1677
1678 2008-11-04 Akim Demaille <demaille@gostai.com>
1679
1680 Formatting changes.
1681 * data/lalr1-fusion.cc: here.
1682
1683 2008-11-04 Akim Demaille <demaille@gostai.com>
1684
1685 Use strict on bench.pl.
1686 * etc/bench.pl.in (&run, &generate_grammar): New.
1687 Rename the grammar generating functions for consistency.
1688 Change the interface so that the list of benches to run is passed
1689 as (optionless) arguments.
1690 (&compile): Use &run.
1691
1692 2008-11-04 Akim Demaille <demaille@gostai.com>
1693
1694 Remove spurious initial empty lines.
1695 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
1696 * data/yacc.c: End the @output lines with an @.
1697
1698 2008-11-04 Akim Demaille <demaille@gostai.com>
1699
1700 Improve the display of sizes.
1701 * etc/bench.p.in: Higher precision.
1702 Sort by decreasing size.
1703
1704 2008-11-04 Akim Demaille <demaille@gostai.com>
1705
1706 Don't memcpy C++ structures.
1707 * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
1708 arguments.
1709 (variant::build): New overload for
1710 copy-construction-that-destroys.
1711 (variant::swap): New.
1712 (parser::yypush_): Use it in variant mode.
1713
1714 2008-11-04 Akim Demaille <demaille@gostai.com>
1715
1716 Better defaults for bench.pl.
1717 * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
1718 default values.
1719 Adjust &verbose uses.
1720 (-q, --quiet): New.
1721
1722 2008-11-04 Akim Demaille <demaille@gostai.com>
1723
1724 Make variant.yy more complex.
1725 std::list cannot be copied via memcpy, they are more demanding than
1726 std::string. Use one std::list to strengthen the test.
1727
1728 * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
1729 Adjust.
1730 Create a list of strings, instead of a single large string.
1731
1732 2008-11-04 Akim Demaille <demaille@gostai.com>
1733
1734 bench.pl --bench.
1735 * etc/bench.pl.in (--bench, $bench): New.
1736
1737 2008-11-04 Akim Demaille <demaille@gostai.com>
1738
1739 Sort methods.
1740 * data/lalr1-fusion.cc (destroy): Use as() in its definition.
1741 Define it after as().
1742
1743 2008-11-04 Akim Demaille <demaille@gostai.com>
1744
1745 Useless parens.
1746 * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
1747
1748 2008-11-04 Akim Demaille <demaille@gostai.com>
1749
1750 Issue missing synclines after user actions.
1751 * data/c.m4 (b4_case): Issue synclines on the output file.
1752
1753 2008-11-04 Akim Demaille <demaille@gostai.com>
1754
1755 Remove trailing empty line.
1756 * data/lalr1-fusion.cc: Don't add an empty line after the user's
1757 epilogue.
1758
1759 2008-11-04 Akim Demaille <demaille@gostai.com>
1760
1761 Fix output of copyright years.
1762 * data/bison.m4 (b4_copyright): Fix the indentation of the
1763 copyright year paragraph.
1764 Use b4_copyright_years when no years are given.
1765 * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
1766 (b4_copyright_years): New.
1767 Use it.
1768
1769 2008-11-04 Akim Demaille <demaille@gostai.com>
1770
1771 Avoid the spurious initial empty line.
1772 * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
1773 the end of @output request to suppress the empty line that
1774 results.
1775
1776 2008-11-04 Akim Demaille <demaille@gostai.com>
1777
1778 Remove parser::rhs_number_type.
1779 * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
1780 (yyrhs_): Use b4_table_define.
1781
1782 2008-11-04 Akim Demaille <demaille@gostai.com>
1783
1784 Fix iteration type.
1785 * data/lalr1-fusion.cc: Use an int to iterate up to an int.
1786
1787 2008-11-04 Akim Demaille <demaille@gostai.com>
1788
1789 Factor the declaration of the integer tables.
1790 * data/lalr1-fusion.cc (b4_table_define): New.
1791 Use it.
1792
1793 2008-11-03 Akim Demaille <demaille@gostai.com>
1794
1795 Fix indentation of tables in lalr1.cc
1796 * data/lalr1-fusion.cc: Fix the indentation.
1797
1798 2008-11-03 Akim Demaille <demaille@gostai.com>
1799
1800 Destroy the lhs symbols after reduction.
1801 * data/lalr1-fusion.cc (parse): After the user action, when in
1802 variant mode, destroy the lhs symbols.
1803
1804 2008-11-03 Akim Demaille <demaille@gostai.com>
1805
1806 Simplify yysyntax_error_ use.
1807 * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
1808 type, but make it unnamed in the declaration when it is not used.
1809
1810 2008-11-03 Akim Demaille <demaille@gostai.com>
1811
1812 Let yy::variant::build return an lvalue.
1813 * data/lalr1-fusion.cc (variant::build): Return a reference to the
1814 object.
1815
1816 2008-11-03 Akim Demaille <demaille@gostai.com>
1817
1818 Define yy::variant only when needed.
1819 * data/lalr1-fusion.cc (yy::variant): Define only if variants are
1820 used.
1821
1822 2008-11-03 Akim Demaille <demaille@gostai.com>
1823
1824 Bench the three-stack lalr1.cc.
1825 * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
1826 one-stack one.
1827
1828 2008-11-03 Akim Demaille <demaille@gostai.com>
1829
1830 Fail on parse error in calc++.
1831 * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
1832 status.
1833 * examples/calc++/test ($me, $number, $exit, run): New.
1834 Use them to propagate errors to the exit status.
1835
1836 2008-11-03 Akim Demaille <demaille@gostai.com>
1837
1838 Don't specify the skeleton twice in the example.
1839 * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
1840 file does what is needed.
1841
1842 2008-11-03 Akim Demaille <demaille@gostai.com>
1843
1844 bench: Improve output.
1845 * etc/bench.pl.in (bench_grammar): Tune the printf format.
1846
1847 2008-11-03 Akim Demaille <demaille@gostai.com>
1848
1849 bench: check impact of %debug on variants.
1850 * etc/bench.pl.in (variant_grammar): Fix the computation of
1851 $variant.
1852 Generate a grammar file that can work with or without %debug.
1853 Do use the @directive.
1854 (bench_variant_parser): Check impact of %debug.
1855 (@directives): Rename all the occurrences to...
1856 (@directive): this, for consistency.
1857
1858 2008-11-03 Akim Demaille <demaille@gostai.com>
1859
1860 bench: report the size too.
1861 * etc/bench.pl.in ($iterations): Defaults to -3.
1862 (&bench_grammar): Require hireswallclock.
1863 Compute and display the size of the result.
1864 More comments.
1865
1866 2008-11-03 Akim Demaille <demaille@gostai.com>
1867
1868 bench: More use of the verbosity level.
1869 * etc/bench.pl.in ($verbose, &verbose): New.
1870 Use them.
1871 More POD documentation.
1872
1873 2008-11-03 Akim Demaille <demaille@gostai.com>
1874
1875 bench.pl: a command line interface
1876 * etc/bench.pl.in: More doc.
1877 Some fixes in the documentation.
1878 ($cflags, $iterations, &help, &getopt): New.
1879 Use them.
1880 (&variant_grammar): Let the number of stages be 10 times what is
1881 specified.
1882
1883 2008-11-03 Akim Demaille <demaille@gostai.com>
1884
1885 Bench the use of Boost.Variants.
1886 * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
1887 New.
1888 (&compile): Be ready to compile C++ parsers.
1889 (&bench_push_parser): Move debug information to the outermost
1890 level.
1891 * THANKS: Add Michiel De Wilde.
1892
1893 2008-11-03 Akim Demaille <demaille@gostai.com>
1894
1895 bench.pl: Pass directives as a list instead of as a string.
1896 * etc/bench.pl.in (&directives): New.
1897 (&triangular_grammar, &calc_grammar): Use it to format the Bison
1898 directives.
1899 (&triangular_grammar): Do use the directives (were ignored).
1900 (&bench_grammar, &bench_push_parser): Adjust to pass lists of
1901 directives.
1902
1903 2008-11-03 Akim Demaille <demaille@gostai.com>
1904
1905 Improve genericity of bench.pl.
1906 * etc/bench.pl.in (&bench_grammar): Take the set of benches as
1907 argument.
1908 (&bench_push_parser): New.
1909 Call it.
1910
1911 2008-11-03 Akim Demaille <demaille@gostai.com>
1912
1913 Add documentation to bench.pl.
1914 * etc/bench.pl.in: Comment changes.
1915
1916 2008-11-03 Akim Demaille <demaille@gostai.com>
1917
1918 Fuse the three stacks into a single one.
1919
1920 In order to make it easy to perform benchmarks to ensure that
1921 there are no performance loss, lalr1.cc is forked into
1922 lalr1-fusion.cc. Eventually, lalr1-fusion.cc will replace
1923 lalr1.cc.
1924
1925 Meanwhile, to make sure that lalr1-fusion.cc is correctly
1926 exercized by the test suite, the user must install a symbolic link
1927 from lalr1.cc to it.
1928
1929 Instead of having three stacks (state, value, location), use a
1930 stack of triples. This considerably simplifies the code (and it
1931 will be easier not to require locations as currently does the C++
1932 parser), and also gives a 10% speedup according to
1933 etc/bench (probably mainly since memory allocation is done once
1934 instead of three times).
1935
1936 Another motivation is to make it easier to destruct properly
1937 semantic values: now that they are bound to their state (hence
1938 symbol type) it will be easier to call the appropriate destructor.
1939
1940 These changes should probably benefit the C parser too.
1941
1942 * data/lalr1.cc: Copy as...
1943 * data/lalr1-fusion.cc: this new file.
1944 (b4_rhs_value, b4_rhs_location): New definitions overriding those
1945 from c++.m4.
1946 (state_stack_type, semantic_stack_type, location_stack_type)
1947 (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
1948 (data_type, stack_type, yystack_): New.
1949 (YYLLOC_DEFAULT, yypush_): Adjust.
1950 (yyerror_range): Now based on data_type, not location_type.
1951
1952 2008-11-03 Akim Demaille <demaille@gostai.com>
1953
1954 Push the state, value, and location at the same time.
1955 This is needed to prepare a forthcoming patch that fuses the three
1956 stacks into one.
1957
1958 * data/lalr1.cc (parser::yypush_): New.
1959 (parser::yynewstate): Change the semantics: instead of arriving to
1960 this label when value and location have been pushed, but yystate
1961 is to be pushed on the state stack, now the three of them must
1962 have been pushed before. yystate still must be the new state.
1963 This allows to use yypush_ everywhere instead of individual
1964 handling of the stacks.
1965
1966 2008-11-03 Akim Demaille <demaille@gostai.com>
1967
1968 Prefer references to pointers.
1969 * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
1970 definition to use references instead of pointers.
1971 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
1972 Take the value and location as references.
1973 Adjust callers.
1974
1975 2008-11-03 Akim Demaille <demaille@gostai.com>
1976
1977 stack::size instead of stack::height.
1978 * data/lalr1.cc (stack::height): Rename as...
1979 (stack::size): this.
1980 Fix the output type.
1981 Comment changes.
1982
1983 2008-11-03 Akim Demaille <demaille@gostai.com>
1984
1985 Use variants to support objects as semantic values.
1986 This patch was inspired by work by Michiel De Wilde. But he used
1987 Boost variants which (i) requires Boost on the user side, (ii) is
1988 slow, and (iii) has useless overhead (the parser knows the type of
1989 the semantic value there is no reason to duplicate this
1990 information as Boost.Variants do).
1991
1992 This implementation reserves a buffer large enough to store the
1993 largest objects. yy::variant implements this buffer. It was
1994 implemented with Quentin Hocquet.
1995
1996 * src/output.c (type_names_output): New.
1997 (output_skeleton): Invoke it.
1998 * data/c++.m4 (b4_variant_if): New.
1999 (b4_symbol_value): If needed, provide a definition for variants.
2000 * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
2001 (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
2002 (b4_char_sizeof, yy::variant): New.
2003 (parser::parse): If variants are requested, define
2004 parser::union_type, parser::variant, change the definition of
2005 semantic_type, construct $$ before running the user action instead
2006 of performing a default $$ = $1.
2007 * examples/variant.yy: New.
2008 Based on an example by Michiel De Wilde.
2009
2010 2008-11-03 Akim Demaille <demaille@gostai.com>
2011
2012 Parameterize the extraction of semantic values.
2013 To make future changes easier, no longer rely on ".TYPE" being the
2014 way to get a semantic value.
2015
2016 * data/c.m4 (b4_symbol_value): New.
2017 Use it.
2018 * data/c++.m4, data/yacc.c: Use it.
2019 * data/glr.c: Use b4_symbol_value.
2020 (b4_rhs_data): New.
2021 Use it.
2022
2023 2008-11-03 Akim Demaille <demaille@gostai.com>
2024
2025 Prepare easier M4 changes.
2026 * data/lalr1.cc: Use escaped [] instead of literals to prepare
2027 future changes.
2028
2029 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2030
2031 Initiate further development.
2032 * NEWS: Create an empty section for new entries.
2033 * gnulib: Update submodule to HEAD.
2034
2035 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2036
2037 * NEWS: Version 2.4.
2038
2039 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2040
2041 Prepare for next release.
2042 * NEWS: Briefly mention changes since 2.3b.
2043 * README: Say GNU m4 1.4.6, which we've been requiring in release
2044 announcements already, not 1.4.3, which breaks the build.
2045
2046 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2047
2048 Say %language is experimental.
2049 We're thinking of extending it's effect on output file naming. See the
2050 thread at
2051 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
2052 * NEWS: Say it's experimental.
2053 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
2054 recommend it over %skeleton for now.
2055 (Bison Options): Likewise.
2056 (C++ Bison Interface): Use %skeleton not %language.
2057 (Calc++ Parser): Use %skeleton not %language.
2058 * src/getargs.c (usage): Say it's experimental.
2059
2060 2008-11-01 Di-an Jan <dianj@freeshell.org>
2061 Paolo Bonzini <bonzini@gnu.org>
2062
2063 Support all Java parser class modifiers.
2064 * data/java.m4 (b4_percent_define_get3): New.
2065 (b4_final_if, b4_strictfp_if): New.
2066 * data/lalr1.java (final, strictfp, extends, implements): Support.
2067 * doc/bison.texinfo (final, strictfp, extends, implements): Add
2068 documentation.
2069 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
2070 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
2071 (AT_CHECK_JAVA_GREP): New.
2072 (Java parser class modifiers): New test.
2073 (Java parser class extends and implements): New test.
2074
2075 Model exception propagation better with throws and lex_throws.
2076 * data/java.m4 (b4_list2): New.
2077 (throws): Change default.
2078 * data/lalr1.java (yyaction): Add throws.
2079 (parse): Add lex_throws in addition to throws.
2080 * doc/bison.texinfo (throws, lex_throws): Add documentation.
2081 * tests/java.at (Java throws specifications): New test.
2082
2083 Improve documentation for Java parsers.
2084 * doc/bison.texinfo (Java Parsers): Add subsections.
2085 Don't quote first argument of %define.
2086 (Java Bison Interface): Document output files. Move documentation
2087 of parser class and merge into Java Parser Interface. Document
2088 features that error out. Document directives with no effect.
2089 Move note about Javadoc higher.
2090 (Java Semantic Values): Explicitly mention stype.
2091 Document that generic types cannot be used.
2092 (Java Location Values): Use @deftypeivar. Document constructors.
2093 Correct return value for toString.
2094 (Java Parser Interface): List undocumented constants/fields.
2095 Move documentation of fields added by %parse-param closer to list
2096 of members. Document that token names are added as fields.
2097 Document constructors accurately. Remove error method.
2098 (Java Scanner Interface): Move note on %pure-parser to Java Bison
2099 Interface. Describe %code lexer and yylex accutately.
2100 Remove documentation that does not match the code.
2101 (Java Action Features): New.
2102 (Java Differences): Add reference. Add item on semantic values.
2103 Add note about @{ ... @}. Clarify %% epilogue placement.
2104 (Java Declarations Summary): New.
2105
2106 Fix Java skeleton.
2107 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
2108 (b4_remove_comma): Quote test argument.
2109 (b4_identification): Remove "bison" field.
2110 * tests/java.at (Java parser class and package names): New test.
2111 (Java %parse-param and %lex-param): New test.
2112 (Java stype, position_class and location_class): New test.
2113
2114 2008-10-31 Di-an Jan <dianj@freeshell.org>
2115
2116 * data/lalr1.jave: Update copyright years.
2117 (YYParser): Correct name of "generated from" file in Javadoc:
2118 use b4_file_name instead of @ofile@.
2119 (Location constructor): Correct Javadoc parameter name.
2120 (yylloc): Add missing opening m4 quote after b4_location_if.
2121 This removes a stray [ in the Javadoc of Lexer.getStartPos.
2122 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
2123 (YYParser constructor): Correct Javadoc parameter name.
2124
2125 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
2126
2127 Always put auxiliary code files in the same dir as other output files.
2128 * src/files.c (compute_file_name_parts): When the user specifies
2129 --output but not --file-prefix, extract the directory prefix from the
2130 file prefix not from the grammar file name. This affects the location
2131 of files like location.hh generated by the C++ skeleton. The includes
2132 in the other output files require this fix.
2133 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
2134 for expected output files.
2135 (Output files): Add a test for the above.
2136
2137 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
2138
2139 * gnulib: Update submodule to HEAD.
2140
2141 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
2142
2143 Update copyright year.
2144 * src/files.c: Here.
2145
2146 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
2147
2148 Don't overwrite the input file.
2149 * src/files.c (output_file_name_check): Fatal error if using input file
2150 for output.
2151 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
2152 argument.
2153 (Conflicting output files): Add test.
2154
2155 2008-10-28 Akim Demaille <demaille@gostai.com>
2156
2157 Space changes.
2158 * data/lalr1.cc: Formatting changes.
2159
2160 2008-10-28 Akim Demaille <demaille@gostai.com>
2161
2162 Don't define debugging functions when !YYDEBUG.
2163 * data/lalr1.cc (debug_stream, set_debug_stream)
2164 (debug_level_type, debug_level, set_debug_level): Don't
2165 declare them when YYDEBUG is not defined.
2166 The implementation are already YYDEBUG-aware.
2167
2168 2008-10-28 Akim Demaille <demaille@gostai.com>
2169
2170 Prefer "continue" for empty loop bodies.
2171 * etc/bench.pl.in: Use "continue" instead of {}.
2172
2173 2008-10-28 Akim Demaille <demaille@gostai.com>
2174
2175 Space and comments changes.
2176 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
2177 * data/c.m4, data/lalr1.cc: Space changes.
2178
2179 2008-10-28 Akim Demaille <demaille@gostai.com>
2180
2181 Make gnulib a submodule.
2182 * gnulib: New.
2183 * .gitmodules (gnulib): New.
2184
2185 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2186
2187 Fix yyerror_range for user-defined location type in C++. Reported by
2188 Georg Sauthoff at
2189 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
2190 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
2191 * THANKS (Georg Sauthoff): Add.
2192
2193 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2194
2195 Update several administrative files mainly to facilitate releasing.
2196 * HACKING (Administrivia): Make the git-merge-changelog notes more
2197 helpful.
2198 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
2199 (Release Procedure): Update for git and add numerous details that were
2200 previously missing.
2201 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
2202 * maint.mk (announcement): Don't list bison as a bootstrap tool so
2203 that announcements don't claim we bootstrapped with whatever bison
2204 happened to be in PATH. Add flex as a bootstrap tool.
2205 * Makefile.maint: Remove, previously replaced by maint.mk.
2206 * Makefile.cfg: Remove, and migrate settings to...
2207 * cfg.mk: ... here for the sake of `make announcement'.
2208 * bootstrap.conf (gnulib_modules): Add announce-gen.
2209 * README: Say GNU Bison instead of just Bison. Suggested by Karl
2210 Berry.
2211
2212 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
2213
2214 Small but important bugfixes for the Java skeleton.
2215 * data/lalr1.java (yyerror): Change Location to b4_location_type.
2216 (yy_symbol_print): Call toString on yyvaluep.
2217
2218 2008-08-29 Akim Demaille <demaille@gostai.com>
2219
2220 Clarify UPDATED use.
2221 * doc/bison.texinfo: It refers to the last edition of this file,
2222 not to the release date of Bison.
2223 Reported by Joel E. Denny.
2224
2225 2008-08-29 Akim Demaille <demaille@gostai.com>
2226
2227 * README: Update FAQ pointer.
2228 Reported by Joel E. Denny.
2229
2230 2008-08-27 Eric Blake <ebb9@byu.net>
2231
2232 Resync m4sugar from autoconf.
2233 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
2234 (m4_init): Adjust to latest m4.git changes.
2235 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
2236 effects.
2237 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
2238 (_m4_list_cmp): Reduce side effects.
2239
2240 2008-08-27 Akim Demaille <demaille@gostai.com>
2241
2242 Check yyerrok in calc.at.
2243 * tests/calc.at (calc.y): Use yyerrok on "( error )".
2244 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
2245 expected.
2246
2247 2008-08-27 Akim Demaille <demaille@gostai.com>
2248
2249 Support yyerrok in lalr1.cc.
2250 YYBACKUP is still to import back into lalr1.cc.
2251 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
2252
2253 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2254
2255 For maintainer-check*, don't recompile for a $(VERSION) update.
2256 * cfg.mk: New file.
2257 (_is-dist-target): Override the one in GNUmakefile.
2258 * Makefile.am (EXTRA_DIST): Add cfg.mk.
2259
2260 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2261
2262 Update for recent change to gnulib.
2263 * src/parse-gram.y: Don't include strverscmp.h. It comes from
2264 string.h now.
2265
2266 2008-08-15 Eric Blake <ebb9@byu.net>
2267
2268 Remaining m4sugar merge from autoconf.
2269 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
2270 * data/m4sugar/foreach.m4: New file, copied from autoconf.
2271 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
2272 * src/output.c (output_skeleton): Tell m4 how to find it.
2273
2274 Partial m4sugar merge from autoconf: m4_map.
2275 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
2276 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
2277 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
2278 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
2279 for empty list.
2280 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
2281 Likewise.
2282 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
2283 declares it.
2284
2285 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
2286
2287 Keep .version and PACKAGE_VERSION in sync.
2288 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
2289 dependency, and add comments justifying this in more detail. Discussed
2290 starting at
2291 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
2292
2293 2008-08-06 Eric Blake <ebb9@byu.net>
2294
2295 Partial m4sugar merge from autoconf: m4_shiftn.
2296 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
2297 (m4_shift2, m4_shift3): New macros.
2298 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
2299 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
2300 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
2301 * data/java.m4 (b4_remove_comma): Likewise.
2302
2303 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
2304 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
2305 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
2306 (m4_init): Consolidate wrapped text into single m4_wrap.
2307 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
2308 in wrapped text.
2309
2310 2008-08-05 Eric Blake <ebb9@byu.net>
2311
2312 Partial m4sugar merge from autoconf: builtins, version.m4.
2313 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
2314 (m4_prepend): Remove, as it is unused and inherently quadratic,
2315 whereas m4_append is linear in newer m4.
2316 (m4_mkstemp): New builtin.
2317 (m4_symbols): Make rename conditional.
2318 (m4_version_prereq): Ensure fatal error if used in bison, which
2319 intentionally lacks version.m4.
2320
2321 Fix comments in m4sugar.
2322 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
2323
2324 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
2325
2326 Update for recent .gitignore fix in Gnulib.
2327 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
2328 anchored .gitignore entries.
2329
2330 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
2331
2332 Set gnu or gnits strictness.
2333 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
2334 development and gnits strictness for releases. Based on Eric Blake's
2335 suggestion at
2336 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
2337
2338 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
2339
2340 * NEWS: Clarify documentation of %language.
2341
2342 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
2343
2344 Support usage of git-merge-changelog.
2345 * .gitattributes: New.
2346 * HACKING: Document usage of git-merge-changelog.
2347 * bootstrap: Install git-merge-changelog entries in .git/config
2348 if appropriate.
2349
2350 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2351
2352 Remove remaining dependence on CVS Id keyword.
2353 * ChangeLog: For the sake of people still using CVS, don't use dollars
2354 when mentioning Id.
2355 * data/xslt/bison.xsl: Remove Id from header comments, where it was
2356 unusual anyway.
2357 * data/xslt/xml2dot.xsl: Likewise.
2358 * data/xslt/xml2text.xsl: Likewise.
2359 * data/xslt/xml2xhtml.xsl: Likewise.
2360 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
2361 * doc/Makefile.am (neutralize): Remove, no longer needed.
2362 (.x.1): Don't use neutralize.
2363 (edit): Don't substitute for ID.
2364 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
2365
2366 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2367
2368 Fix dependence on computed configure variables.
2369 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
2370 $(top_srcdir)/configure.ac so that changes to computed variables, such
2371 as PACKAGE_VERSION, are seen.
2372 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
2373
2374 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
2375
2376 Update copyright dates for recent changes.
2377 * Makefile.am: Here.
2378 * src/Makefile.am: Here.
2379 * src/reduce.c: Here.
2380 * tests/reduce.at: Here.
2381
2382 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
2383
2384 Use git-version-gen for version names between releases.
2385 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
2386 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
2387 * .prev-version: New.
2388 * .version.in: Remove.
2389 * ChangeLog: Remove the Id previously used for capturing the CVS
2390 revision.
2391 * GNUmakefile: Remove, now copied from Gnulib.
2392 * Makefile.am: Add code suggested by comments in
2393 build-aux/git-version-gen.
2394 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
2395 .prev-version, and .version.
2396 * NEWS (2.3b+): Rename to...
2397 (?.?): ... this because we're dropping the "+" version naming scheme,
2398 but, in general, we still can't be sure of our next release name.
2399 * bootstrap: Add a quick hack to remove from .gitignore the
2400 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
2401 entry. This should really be fixed in gnulib instead.
2402 * bootstrap.conf (gnulib_modules): Add gnumakefile.
2403 * configure.ac (AC_INIT): Set version name by invoking
2404 build-aux/git-version-gen.
2405 (AC_CONFIG_FILES): Remove .version, now generated by
2406 build-aux/git-version-gen.
2407 * maint.mk: New, copied from coreutils.
2408 * doc/.cvsignore (bison.1): Add.
2409 * doc/.gitignore (/bison.1): Add.
2410 * doc/bison.1: Remove, generated.
2411 * src/.cvsignore (revision.c): Remove.
2412 * src/.gitignore (/revision.c): Remove.
2413 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
2414 (BUILT_SOURCES): Remove revision.c.
2415 (revision.c): Remove.
2416 * src/getargs.c (version): Don't print revision after the VERSION.
2417 * src/revision.h: Remove.
2418
2419 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
2420
2421 Fix untranslatable composition of sentences. Reported by Goran
2422 Uddeborg at
2423 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
2424 * THANKS (Goran Uddeborg): Add.
2425 * src/reduce.c (reduce_print): Report the number of nonterminals and
2426 rules useless in the grammar in separate sentences.
2427 * tests/reduce.at (Useless Rules): Update output.
2428 (Reduced Automaton): Likewise.
2429 (Underivable Rules): Likewise.
2430 (Empty Language): Likewise.
2431
2432 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2433
2434 Fix some .gitignore and .cvsignore problems.
2435 * bootstrap (insert_sorted_if_absent): Replace all uses with...
2436 (insert_vc_ignore): ... this new function, which prepends `/' to all
2437 .gitignore entries before passing them to insert_sorted_if_absent.
2438 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
2439 .cvsignore files are maintained even though Bison developers run
2440 bootstrap while using Git.
2441 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
2442 unneeded by Bison.
2443 (gnulib): Add.
2444 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
2445 unneeded. Reported by Eric Blake.
2446 * lib/.gitignore (/*~): Add.
2447 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
2448 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
2449 Blake.
2450 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
2451
2452 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2453
2454 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
2455 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
2456 * bootstrap.conf (gnulib_modules): Add unsetenv.
2457 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
2458 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
2459 (/setenv.m4): Add.
2460 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
2461 the first argument because it may become position-dependent, and unset
2462 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
2463 Add comments explaining these issues in more detail.
2464
2465 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
2466
2467 Add .gitignore everywhere based on .cvsignore.
2468 * .gitignore: New.
2469 * build-aux/.gitignore: New.
2470 * data/.gitignore: New.
2471 * doc/.gitignore: New.
2472 * etc/.gitignore: New.
2473 * examples/.gitignore: New.
2474 * examples/calc++/.gitignore: New.
2475 * lib/.gitignore: New.
2476 * m4/.gitignore: New.
2477 * po/.gitignore: New.
2478 * runtime-po/.gitignore: New.
2479 * src/.gitignore: New.
2480 * tests/.gitignore: New.
2481
2482 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2483
2484 * NEWS (2.3b+): New section, empty for now.
2485 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
2486
2487 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2488
2489 * NEWS (2.3b): Update release date since there has been a delay in
2490 getting the announcements and tarballs out.
2491
2492 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
2493
2494 * NEWS: Version 2.3b.
2495 * configure.ac (AC_INIT): Likewise.
2496 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
2497
2498 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
2499
2500 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
2501 been doing it for years.
2502 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
2503 (Release Procedure): Add FIXME about make alpha being unmaintained.
2504
2505 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
2506
2507 * data/yacc.c: Reformat m4 a little for readability.
2508 * src/lalr.c (build_relations): Correct comment.
2509
2510 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2511
2512 DJGPP specific issue.
2513 * djgpp/config.sed: Fixes required to run configure scripts generated
2514 by autoconf 2.62.
2515
2516 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
2517
2518 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
2519 coordinator@translationproject.org.
2520
2521 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
2522
2523 * THANKS: Add Eric Blake.
2524
2525 2008-04-23 Eric Blake <ebb9@byu.net>
2526
2527 Revert prior patch, by working around autoconf regression.
2528 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
2529 ("Output file name: ("): Uncomment test.
2530 ("Output file name: )"): Likewise.
2531 Based on an idea from Noah Misch.
2532
2533 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2534
2535 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
2536 2.61. Reported by Juan Manuel Guerrero at
2537 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
2538 * tests/output.at ("Output file name: ("): Comment out test case for
2539 now.
2540 ("Output file name: )"): Likewise.
2541
2542 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2543
2544 * GNUmakefile: Update git-version-gen invocation so make dist
2545 succeeds.
2546
2547 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2548
2549 Update to the current gnulib CVS repository, and fix trigraph handling
2550 in Bison.
2551 * bootstrap: Update gnulib CVS repository URL.
2552 (symlink_to_dir): Encapsulate the code that guarantees the destination
2553 directory exists into...
2554 (check_dst_dir): ... this new function, and...
2555 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
2556 fail when copying files into lib/uniwidth/.
2557 * src/output.c (prepare_symbols): When writing yytname muscles, where
2558 symbol names will be encoded in C-string literals, tell quotearg to
2559 escape trigraphs. This used to be the default in gnulib.
2560 * tests/regression.at (Token definitions): Because of the change in
2561 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
2562 escapes trigraphs in symbol names. Thus, yytname no longer has
2563 trigraphs unnecessarily doubly escaped. Update test case output.
2564 Extend test case to be sure Bison's own error messages will no longer
2565 have trigraphs in symbol names unnecessarily escaped once.
2566
2567 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
2568
2569 Fix make dist infinite loop reported by Juan Manuel Guerrero at
2570 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
2571 * .cvsignore: Add .version.
2572 * .version.in: New.
2573 * bootstrap.conf (gnulib_modules): Add git-version-gen.
2574 * configure.ac (AC_CONFIG_FILES): Add .version.
2575 * build-aux/.cvsignore: Add git-version-gen.
2576
2577 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
2578
2579 * NEWS (2.3a+): Mention that -g now takes an argument.
2580 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
2581 consistency. Update the -g and -x entries now that they take
2582 arguments. Use brackets to indicate optional arguments.
2583 * src/getargs.c (usage): Explain the relationship between arguments of
2584 long and short options more completely. Document --defines and -d
2585 separately since the former takes an argument but, for POSIX Yacc, the
2586 latter does not.
2587 (short_options): Let -W take an optional argument like --warnings.
2588 (getargs): Sort cases.
2589
2590 2008-02-28 Akim Demaille <demaille@gostai.com>
2591
2592 * doc/bison.texinfo: Fix a few typos.
2593
2594 2008-02-28 Akim Demaille <akim@epita.fr>
2595
2596 * doc/bison.texinfo (Bison Options): Document -W.
2597 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
2598
2599 2008-02-28 Akim Demaille <akim@epita.fr>
2600
2601 * src/getargs.c (short_options): Split and sort for readability.
2602 -g and -x take optional arguments, just like their long options.
2603 * build-aux/cross-options.pl: Use /x to make the regexp easier to
2604 understand.
2605 Fix the handling of $opt which resulted in all the argument to be
2606 considered as optional.
2607
2608 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
2609
2610 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
2611 say its interface is experimental.
2612 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
2613 Java.
2614 (Bison Options): In the -L and --language entry, mention Java.
2615 (Java Bison Interface): Say the interface is experimental.
2616 * src/getargs.c (usage): Mention -L and --language.
2617
2618 * NEWS (2.3a+): Say the push parsing interface is experimental.
2619 * doc/bison.texinfo (Push Decl): Likewise.
2620 (Decl Summary): Likewise in the "%define api.push_pull" entry.
2621 (Push Parser Function): Likewise.
2622 (Pull Parser Function): Likewise.
2623 (Parser Create Function): Likewise.
2624 (Parser Delete Function): Likewise.
2625 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
2626 yypull_parse, and yypush_parse entries.
2627
2628 * NEWS (2.3a+): Mention XML support, and say the schema is
2629 experimental.
2630 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
2631 * src/getargs.c (usage): Say the XML schema is experimental.
2632
2633 * NEWS (2.3a+): Say option instead of flag.
2634
2635 2008-02-21 Wojciech Polak <polak@gnu.org>
2636
2637 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
2638 text.
2639
2640 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
2641
2642 Fix impure push parser compile error reported by Bob Rossi at
2643 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
2644 * data/yacc.c: Clean up whitespace in the output a little.
2645 (yypstate_allocated): Define for impure push parsers regardless of
2646 whether the pull interface is also requested.
2647 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
2648 check impure push parsers without the pull interface.
2649
2650 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
2651 yyerror takes arguments specified by %parse-param while yypstate_new
2652 does not.
2653 * doc/bison.texinfo (Parser Create Function): Document that
2654 yypstate_new returns 0 for multiple impure parser instances.
2655 * tests/push.at (Push Parsing: Multiple impure instances): Update
2656 expected stderr output.
2657
2658 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
2659
2660 * runtime-po/POTFILES.in (push.c): Remove.
2661
2662 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
2663
2664 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
2665 * data/push.c: Rename to...
2666 * data/yacc.c: ... this, overwriting it.
2667 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
2668 `%push-pull-parser' -> `%define api.push_pull "both"'.
2669 Remove old yacc.c tests, and update push.c tests to yacc.c.
2670
2671 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
2672
2673 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
2674 `"%code top" blocks' instead of `%code "top" blocks'.
2675 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
2676 Clean up whitespace in the output a little.
2677
2678 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
2679
2680 Fix documentation problems reported by Tim Josling at
2681 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
2682 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
2683 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
2684 integers. Explain the effect of literal string aliases on error
2685 messages. Copy token 0 documentation from the C++ skeleton
2686 documentation.
2687
2688 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
2689
2690 Accept a token number in a %left, %right, or %nonassoc for POSIX
2691 conformance. Reported by Tim Josling at
2692 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
2693 * NEWS (2.3a+): Mention.
2694 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
2695 and code numbers are treated by precedence declarations.
2696 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
2697 of symbols.1.
2698 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
2699 of symbol.
2700 (symbol.prec): New, just like symbol but allows INT.
2701 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
2702 longer holds.
2703 * tests/regression.at (Token number in precedence declaration): New
2704 test case.
2705
2706 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2707
2708 DJGPP specific issues.
2709 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
2710 be changed. Copyright timestamp adjusted.
2711 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
2712 be changed. Copyright timestamp adjusted.
2713 * djgpp/config.site: Copyright timestamp adjusted.
2714 * djgpp/config_h.sed: Copyright timestamp adjusted.
2715 * djgpp/djunpack.bat: Copyright timestamp adjusted.
2716 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
2717 filename translation list.
2718 * djgpp/subpipe.c (init_subpipe): Check the environment variables
2719 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
2720 files shall be created. Before trying to use the temp dir where the
2721 environment variable points to check that the dir really exists. If
2722 not default to the cwd as temp dir. Copyright timestamp adjusted.
2723 * djgpp/subpipe.h: Copyright timestamp adjusted.
2724 * djgpp/testsuite.sed: Copyright timestamp adjusted.
2725
2726 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
2727
2728 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
2729
2730 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
2731
2732 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
2733 Problem reported by Claudio Saavedra in
2734 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
2735
2736 2008-01-05 Wojciech Polak <polak@gnu.org>
2737
2738 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
2739 document's title with the input grammar file name.
2740
2741 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
2742
2743 Automate regression testing of the XML/XSLT implementation. Discussed
2744 starting at
2745 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
2746 * configure.ac (XSLTPROC): New substitution.
2747 * Makefile.am (maintainer-xml-check): New phony target invoking...
2748 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
2749 invoking make maintainer-check with BISON_TEST_XML=1.
2750 * tests/atlocal.in (XSLTPROC): New.
2751 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
2752 not to report reachable memory when Bison is expected to have a
2753 non-zero exit status and (2) to compare XML/XSLT output with --graph
2754 and --report=all output for every working grammar when
2755 BISON_TEST_XML=1.
2756 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
2757 (AT_BISON_CHECK_XML): New.
2758 (AT_QUELL_VALGRIND): New.
2759 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
2760 (AT_CHECK): ... don't redefine this since this was the old way to
2761 quell Valgrind.
2762 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
2763 AT_BISON_CHECK invocations.
2764 * tests/c++.at: Likewise.
2765 * tests/calc.at: Likewise.
2766 * tests/conflicts.at: Likewise.
2767 * tests/cxx-type.at: Likewise.
2768 * tests/existing.at: Likewise.
2769 * tests/glr-regression.at: Likewise.
2770 * tests/headers.at: Likewise.
2771 * tests/input.at: Likewise.
2772 * tests/java.at: Likewise.
2773 * tests/output.at: Likewise.
2774 * tests/push.at: Likewise.
2775 * tests/reduce.at: Likewise.
2776 * tests/regression.at: Likewise.
2777 * tests/sets.at: Likewise.
2778 * tests/skeletons.at: Likewise.
2779 * tests/synclines.at: Likewise.
2780 * tests/torture.at: Likewise.
2781 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
2782 tends to hang xsltproc.
2783 (Big horizontal): Likewise.
2784
2785 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2786
2787 In XML output, remove redundant class attribute on symbol element.
2788 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
2789 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
2790 look up a symbol to determine whether it's a nonterminal or terminal.
2791 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
2792 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
2793
2794 Add prec/assoc information to XML output.
2795 * src/gram.c (grammar_rules_print_xml): For each rule that has a
2796 %prec, add a percent_prec attribute.
2797 * src/print-xml.c (print_grammar): For each terminal that has a
2798 precedence or associativity, add a prec or assoc attribute.
2799 (xml_indent): New.
2800 (xml_puts): Use xml_indent.
2801 (xml_printf): Use xml_indent.
2802 * src/print-xml.h (xml_indent): Prototype.
2803
2804 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
2805 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
2806
2807 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2808
2809 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
2810 (bison:ruleByNumber): ... this for clarity.
2811 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
2812 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
2813 (xsl:template match="reduction"): Update.
2814 (xsl:template match="item"): Update.
2815 (xsl:template match="reduction"): Update.
2816
2817 In the XML output, don't print the list of rules where symbols appear.
2818 Compute it in XSLT instead. Discussed at
2819 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
2820 * data/xslt/bison.xsl (bison:ruleByLhs): New.
2821 (bison:ruleByRhs): New.
2822 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
2823 bison:ruleByRhs.
2824 (xsl:template match="terminal/rule"): Remove.
2825 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2826 bison:ruleByRhs.
2827 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2828 Remove.
2829 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
2830 bison:ruleByRhs and mode="number-link" for rule template.
2831 (xsl:template match="terminal/rule"): Remove.
2832 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2833 bison:ruleByRhs and mode="number-link" for rule template.
2834 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2835 Rewrite as...
2836 (xsl:template match="rule" mode="number-link"): ... this.
2837 * src/print-xml.c (print_grammar): Don't print the list of rules.
2838
2839 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
2840
2841 Don't let --report affect XML output; always print all information.
2842 Discussed at
2843 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
2844 * src/conflicts.c (log_resolution): Implement.
2845 * src/print-xml.c (print_core): Implement.
2846 (print_state): Implement.
2847 (print_xml): Implement.
2848
2849 * NEWS (2.3a+): Fix quotes.
2850 * src/parse-gram.y (prologue_declaration): For consistency with -v,
2851 don't let %verbose clear the list specified by --report.
2852
2853 2007-11-26 Akim Demaille <akim@epita.fr>
2854
2855 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
2856
2857 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
2858
2859 In the XML output, list useless and unused symbols and rules with the
2860 useful ones and add a "usefulness" attribute. Discussed starting at
2861 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
2862 * src/gram.c (grammar_rules_partial_print_xml): Remove.
2863 (grammar_rules_print_xml): Print all rules instead of just those
2864 useful in the grammar, and add a "usefulness" attribute.
2865 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
2866 * src/print-xml.c (print_rules_useless_in_parser): Remove.
2867 (print_grammar): Print all nonterminals instead of just useful ones,
2868 and add a "usefulness" attribute to nonterminals and terminals.
2869 (print_xml): Don't print a separate "reductions" or
2870 "rules-useless-in-parser" element.
2871 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
2872 (reduce_xml): Remove.
2873 (reduce_token_unused_in_grammar): New.
2874 (reduce_nonterminal_useless_in_grammar): New.
2875 * src/reduce.h (reduce_xml): Remove prototype.
2876 (reduce_token_unused_in_grammar): Add prototype.
2877 (reduce_nonterminal_useless_in_grammar): Add prototype.
2878 * data/xslt/xml2text.xsl: Update for XML changes.
2879 * data/xslt/xml2xhtml.xsl: Update for XML changes.
2880 * tests/reduce.at (Useless Terminals): Update output.
2881 (Useless Rules): Update output.
2882 (Reduced Automaton): Update output.
2883
2884 Say "Terminals unused in grammar" instead of "Unused terminals".
2885 * NEWS (2.3a+): Update.
2886 * doc/bison.texinfo (Understanding): Update example output.
2887 * src/reduce.c (reduce_output): Implement.
2888 * data/xslt/xml2text.xsl: Implement.
2889 * data/xslt/xml2xhtml.xsl: Implement.
2890
2891 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
2892
2893 Accept --report-file=FILE to override the default `.output' filename.
2894 * NEWS (2.3a+): Mention.
2895 * doc/bison.texinfo (Bison Options): Add an entry.
2896 * src/files.c (compute_output_file_names): Don't override
2897 spec_verbose_file if already set.
2898 * src/getargs.c (usage): Document --report-file.
2899 (REPORT_FILE_OPTION): New anonymous enum member.
2900 (long_options): Add entry for it.
2901 (getargs): Add case for it setting spec_verbose_file.
2902
2903 * build-aux/cross-options.pl: Don't record a short option just because
2904 there's an arg.
2905 * doc/.cvsignore: Add yacc.1.
2906
2907 2007-11-14 Akim Demaille <akim@epita.fr>
2908
2909 * doc/yacc.1.in: New.
2910 * configure.ac, doc/Makefile.am: Adjust.
2911 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
2912 config.h symbol.
2913 Use AC_SUBST for assignments too.
2914 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
2915
2916 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
2917
2918 * src/gram.c: Remove comments that duplicate comments in gram.h.
2919
2920 When reporting useless rules and nonterminals, say "useless in grammar"
2921 instead of "useless", and say "useless in parser" instead of "never
2922 reduced". Discussed starting at
2923 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
2924 * NEWS (2.3a+): Mention this change.
2925 * data/xslt/xml2text.xsl: Update output text and expected input XML
2926 element names to match changes below.
2927 * data/xslt/xml2xhtml.xsl: Likewise.
2928 (xsl:template match="bison-xml-report"): Add missing entry in Table of
2929 Contents: "Rules useless in parser due to conflicts".
2930 * doc/bison.texinfo (Decl Summary): Reword a little.
2931 (Understanding): Update example output for changes below.
2932 * src/gram.c: (rule_useful_p): Rename to...
2933 (rule_useful_in_grammar_p): ... this.
2934 (rule_useless_p): Rename to...
2935 (rule_useless_in_grammar_p): ... this.
2936 (rule_never_reduced_p): Rename to...
2937 (rule_useless_in_parser_p): ... this.
2938 (grammar_rules_print): Update for renames.
2939 (grammar_rules_print_xml): Update for renames.
2940 (grammar_rules_never_reduced_report): Rename to...
2941 (grammar_rules_useless_report): ... this since it is used for either
2942 kind of useless rule.
2943 * src/gram.h: Reword comments and update function names in prototypes.
2944 * src/main.c (main): Say "rule useless in parser due to conflicts".
2945 * src/print-xml.c (print_rules_never_reduced): Rename to...
2946 (print_rules_useless_in_parser): ... this, and rename output XML
2947 element "rules-never-reduced" to "rules-useless-in-parser".
2948 (print_xml): Update for rename.
2949 * src/print.c (print_results): Say "Rules useless in parser due to
2950 conflicts".
2951 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
2952 (nonterminals_reduce): Say "nonterminal useless in grammar".
2953 (reduce_output): Say "Nonterminals useless in grammar".
2954 Say "Rules useless in grammar".
2955 (reduce_xml): Rename output XML element "useless" to
2956 "useless-in-grammar".
2957 (reduce_print): Don't report the count of grammatically useless rules
2958 as "rules never reduced" just because %yacc is specified.
2959 In the correct report of this count, say nonterminal(s) and rule(s)
2960 "useless in grammar".
2961 * tests/conflicts.at (S/R in initial): Update expected output.
2962 (Defaulted Conflicted Reduction): Likewise.
2963 (Unreachable States After Conflict Resolution): Likewise.
2964 * tests/existing.at (GNU pic Grammar): Likewise.
2965 * tests/reduce.at (Useless Nonterminals): Likewise.
2966 (Useless Rules): Likewise.
2967 (Reduced Automaton): Likewise.
2968 (Underivable Rules): Likewise.
2969 (Empty Language): Likewise.
2970
2971 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
2972
2973 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
2974 here document and before the EOF so that BSD's implementation of Bourne
2975 shell doesn't parse the delimiter as part of the here document.
2976 * doc/.cvsignore: Add cross-options.texi.
2977 * src/getargs.c (usage): Add a blank line after the warning categories.
2978
2979 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
2980
2981 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
2982
2983 2007-11-05 Akim Demaille <akim@epita.fr>
2984
2985 Remove Id: from bison.1.
2986 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
2987 (perl -0777 -pi -e 's/\.PP\nId): New.
2988 (.x.1): Use it to ignore the version control revision.
2989
2990 2007-11-05 Akim Demaille <demaille@gostai.com>
2991
2992 * build-aux/Makefile.am: Ship cross-options.pl.
2993 * doc/Makefile.am: Always refer to cross-options.texi with
2994 $(srcdir).
2995 (MAINTAINERCLEANFILES): Add it.
2996
2997 2007-11-04 Akim Demaille <demaille@gostai.com>
2998
2999 Generate the long/short option cross-table.
3000 * build-aux/cross-options.pl: New.
3001 * doc/Makefile.am (cross-options.texi): New.
3002 * doc/bison.texinfo: Use it.
3003
3004 2007-11-04 Akim Demaille <demaille@gostai.com>
3005
3006 Generate bison.1 using help2man.
3007 * doc/common.x, doc/bison.x: New.
3008 * doc/Makefile.am (bison.1, .x.1): New.
3009 The code is taken from autoconf-2.61/man/Makefile.am.
3010 * configure.ac: Look for help2man.
3011
3012 2007-11-04 Akim Demaille <demaille@gostai.com>
3013
3014 Complete --help.
3015 * src/getargs.c (usage): Document -W, make it clear that -d,
3016 -g and -x have optional arguments.
3017
3018 2007-11-04 Akim Demaille <demaille@gostai.com>
3019
3020 Find sha1sum when named gsha1sum.
3021 * bootstrap (find_tool): New.
3022 ($SHA1SUM): New.
3023
3024 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3025
3026 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
3027 at
3028 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
3029 * NEWS (2.3a+): Mention.
3030 * data/bison.m4 (b4_pure_if): Don't define it here.
3031 * data/c.m4 (b4_identification): Depend on individual skeletons to
3032 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
3033 values of the %define variables api.pure or api.push_pull. Define
3034 YYPURE, YYPUSH, and YYPULL accordingly.
3035 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
3036 glr.cc has already defined b4_pure_flag.
3037 * data/push.c: Define b4_pure_if based on `%define api.pure'.
3038 Remove YYPUSH and YYPULL since they're back in b4_identification again.
3039 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
3040 * doc/bison.texinfo (Pure Decl): Update.
3041 (Push Decl): Update.
3042 (Decl Summary): Add api.pure to %define entry.
3043 In %pure-parser entry, say it's deprecated and reference %define.
3044 (Pure Calling): Update.
3045 (Error Reporting): Update.
3046 (C++ Scanner Interface): Update.
3047 (How Can I Reset the Parser): Update.
3048 (Table of Symbols): In %pure-parser entry, say it's deprecated and
3049 reference %define.
3050 * src/getargs.c (pure_parser): Remove global variable.
3051 * src/getargs.h (pure_parser): Remove extern.
3052 * src/output.c (prepare): Don't define pure_flag muscle.
3053 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
3054 wrapper around `%define api.pure'.
3055 * tests/calc.at (Simple LALR Calculator): Update.
3056 (Simple GLR Calculator): Update.
3057 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
3058 Update.
3059 (GLR: Resolve ambiguity, pure, locations): Update.
3060 (GLR: Merge conflicting parses, pure, no locations): Update.
3061 (GLR: Merge conflicting parses, pure, locations): Update.
3062 * tests/glr-regression.at (Uninitialized location when reporting
3063 ambiguity): Update
3064 * tests/input.at (Unused %define api.pure): New test case.
3065 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
3066 AT_PURE_IF and AT_PURE_AND_LOC_IF.
3067 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3068
3069 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3070
3071 %define push_pull -> %define api.push_pull. Discussed starting at
3072 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
3073 * data/push.c: Expect the new name.
3074 * data/yacc.c: Likewise.
3075 * doc/bison.texinfo (Push Decl): Update.
3076 (Decl Summary): Update %define entry.
3077 (Push Parser Function): Update.
3078 (Pull Parser Function): Update.
3079 (Parser Create Function): Update.
3080 (Parser Delete Function): Update.
3081 * tests/calc.at (Simple LALR Calculator): Update.
3082 * tests/input.at (%define enum variables): Update.
3083 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3084 (Push Parsing: Multiple impure instances): Update.
3085 (Push Parsing: Unsupported Skeletons): Update.
3086 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
3087 (Exploding the Stack Size with Malloc): Update.
3088
3089 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
3090 other entries some.
3091
3092 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
3093
3094 For the XML output's terminal element, rename @number to @token-number,
3095 and add @symbol-number. In the nonterminal element, rename @number to
3096 @symbol-number. Discussed starting at
3097 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
3098 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
3099 renames.
3100 (xsl:template match="nonterminal"): Likewise.
3101 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
3102 (xsl:template match="nonterminal"): Likewise.
3103 * src/print-xml.c (print_grammar): Implement.
3104
3105 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
3106
3107 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
3108 2007-10-11 change, the child elements here are items not rules.
3109 (xsl:template match="item"): New.
3110 (xsl:template match="rule"): Update for new reduced itemset.
3111 (xsl:template match="point"): Remove.
3112 (xsl:template match="empty"): For consistency with --graph, don't
3113 output "/* empty */".
3114 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
3115 line-wrap, don't pass a negative value as first-line-length since this
3116 won't work with the following changes.
3117 (xsl:template name="line-wrap"): Simplify slightly.
3118 (xsl:template name="ws-search"): Eliminate recursion.
3119 * src/print_graph.c (print_core): Don't print a reduction's lookahead
3120 set next to an item whose dot is not at the end of the RHS even if it
3121 happens to be associated with the same rule.
3122
3123 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3124
3125 Add %define lr.keep_unreachable_states.
3126 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
3127 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
3128 * src/main.c (main): Implement it.
3129 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3130 Extend to test it, and fix a typo.
3131
3132 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3133
3134 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
3135 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
3136 the example .output text.
3137 * tests/regression.at (Extra lookahead sets in report): Improve wording
3138 of comments.
3139
3140 2007-10-17 Wojciech Polak <polak@gnu.org>
3141
3142 * src/print-xml.c (print_grammar): Renamed
3143 <terminal> and <nonterminal> attributes:
3144 "type" to "number" and "symbol" to "name".
3145 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
3146 Use new attribute names.
3147 (xsl:template match="nonterminal"): Likewise.
3148 * data/xslt/xml2xhtml.xsl: Likewise.
3149
3150 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
3151
3152 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
3153 (Option Cross Key): Likewise.
3154
3155 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
3156 next to an item whose dot is not at the end of the RHS even if it
3157 happens to be associated with the same rule.
3158 * src/print.c (print_core): Likewise.
3159 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
3160 (Resolved SR Conflicts): Update output.
3161 * tests/regression.at (Extra lookahead sets in report): New test case.
3162
3163 2007-10-11 Wojciech Polak <polak@gnu.org>
3164
3165 * src/print-xml.c (print_core): Remove item set
3166 redundancy.
3167 * data/xslt/bison.xsl (bison:ruleNumber): New key.
3168 Improve processing time. Suggested by Joel E. Denny.
3169 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
3170 Write xsl:param "required" attribute as comment.
3171 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
3172 (xsl:template match="rule"): Support new reduced itemset.
3173 (xsl:template match="point"): Remove.
3174 * data/xslt/xml2xhtml.xsl: Likewise.
3175
3176 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3177
3178 * src/getargs.c (version): Update copyright year.
3179
3180 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3181
3182 Make xml2dot.xsl and --graph produce the same output.
3183 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
3184 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
3185 escaped later.
3186 (xsl:template name="output-node"): Use the new escape template instead
3187 of the string-replace template directly.
3188 (xsl:template name="output-edge"): Likewise.
3189 (xsl:template name="escape"): New, escapes backslashes and newlines in
3190 addition to quotation marks.
3191 * src/graphviz.c (start_graph, output_node, output_edge): Add
3192 whitespace to output for legibility.
3193
3194 Make xml2text.xsl and --report produce the same output, and remove the
3195 XML "conflicts" element since a conflict summary is easily extracted
3196 from the automaton.
3197 * data/xslt/bison.xsl: New.
3198 (xsl:template match="state" mode="bison:count-conflicts): New.
3199 * data/xslt/xml2text.xsl: Import bison.xsl.
3200 (xsl:template match="bison-xml-report"): Instead of styling the
3201 "conflicts" element, style the "automaton" element with mode
3202 "conflicts". Unlike the former, the latter lists S/R and R/R
3203 conflicts for a state on the same line.
3204 (xsl:template match="conflicts"): Remove.
3205 (xsl:template match="conflict"): Remove.
3206 (xsl:template match="terminal"): Line-wrap the list of rules in which
3207 the terminal is used.
3208 (xsl:template match="nonterminal"): Likewise for nonterminals.
3209 (xsl:template match="automaton" mode="conflicts"): New.
3210 (xsl:template match="state" mode="conflicts"): New.
3211 (xsl:template name="line-wrap"): New.
3212 (xsl:template name="ws-search"): New.
3213 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
3214 (xsl:template match="bison-xml-report"): Instead of styling the
3215 "conflicts" element, style the "automaton" element with mode
3216 "conflicts."
3217 (xsl:template match="conflicts"): Remove.
3218 (xsl:template match="conflict"): Remove.
3219 (xsl:template match="automaton" mode="conflicts"): New.
3220 (xsl:template match="state" mode="conflicts): New.
3221 * src/conflicts.c (conflicts_output_xml): Remove.
3222 * src/conflicts.h (conflicts_output_xml): Remove prototype.
3223 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
3224 * src/print.c (print_grammar): Consistently wrap at the 66th column so
3225 the corresponding XSLT is easier. Also, never wrap between a word and
3226 the comma that follows it.
3227
3228 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3229
3230 Improve C++ namespace support. Discussed starting at
3231 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
3232 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
3233 b4_namespace_close): New macros that interpret the %define variable
3234 "namespace" so its value can contain "::" to indicate nested
3235 namespaces.
3236 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
3237 the above macros.
3238 * data/lalr1.cc (b4_namespace): Likewise.
3239 * data/location.cc (b4_namespace): Likewise.
3240 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
3241 inside a new table in the general %define entry. Document `%define
3242 namespace' there as well. Point the %name-prefix entry to it since it
3243 explains it more completely in the case of C++.
3244 (C++ Bison Interface): Mention `%define namespace' instead of
3245 %name-prefix.
3246 (Table of Symbols): Remove the `%define push_pull' entry. The %define
3247 entry suffices.
3248 * tests/c++.at (Relative namespace references): New test case.
3249 (Absolute namespace references): New test case.
3250 (Syntactically invalid namespace references): New test case.
3251 * tests/input.at (C++ namespace reference errors): New test case.
3252
3253 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3254
3255 Add syncline support and location accessor to internal %define
3256 interfaces.
3257 * data/bison.m4 (b4_percent_define_get_loc): New.
3258 (b4_percent_define_get_syncline): New.
3259 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
3260 (b4_percent_define_default): Record defining location as line 1 rather
3261 than 0 for the sake of synchronizing #line's, and define
3262 b4_percent_define_syncline(VARIABLE).
3263 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
3264 * src/muscle_tab.c (muscle_syncline_grow): New.
3265 (muscle_code_grow): Use muscle_syncline_grow.
3266 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
3267 define b4_percent_define_syncline(VARIABLE).
3268 (muscle_percent_define_get_loc): New.
3269 (muscle_percent_define_get_syncline): New.
3270 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
3271 remove some unused variables.
3272 (muscle_percent_define_default): Record defining location as line 1
3273 rather than 0 for the sake of synchronizing #line's, and define
3274 b4_percent_define_syncline(VARIABLE).
3275 (muscle_percent_define_check_values): Use
3276 muscle_percent_define_get_loc.
3277 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
3278 (muscle_percent_define_get_syncline): Prototype.
3279 * tests/skeletons.at (%define Boolean variables: invalid skeleton
3280 defaults): Update output for location change.
3281 (Complaining during macro argument expansion): Extend to test
3282 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
3283
3284 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
3285
3286 Fix some error-reporting macro bugs.
3287 * data/bison.m4 (b4_cat): New.
3288 (b4_error, b4_error_at): Use b4_cat to send error directives directly
3289 to stdout so they don't become arguments to other macros. Update
3290 comments and add examples.
3291 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
3292 add examples.
3293 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
3294 after printing the error directive so that M4 doesn't report subsequent
3295 problems that are induced by this problem.
3296 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
3297 instead of just in them. Recognize @\n in both places. Both expand to
3298 the empty string. Needed by b4_cat.
3299 * tests/skeletons.at (Complaining during macro argument expansion):
3300 New test case.
3301 (Fatal errors make M4 exit immediately): New test case.
3302
3303 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
3304
3305 Implement --print-datadir.
3306 * src/getargs.c (usage): Mention.
3307 (PRINT_DATADIR_OPTION): New anonymous enum member.
3308 (long_options): Add entry for it.
3309 (getargs): Add case for it calling compute_pkgdatadir.
3310 * src/output.c (output_skeleton): Encapsulate data directory
3311 computation from here...
3312 (prepare): ... and from here...
3313 (compute_pkgdatadir): ... into this new function.
3314 * src/output.h (compute_pkgdatadir): Prototype.
3315
3316 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
3317
3318 * src/print-xml.c (escape_bufs): New static global variable
3319 replacing...
3320 (xml_escape_n): ... the static local variable buf here.
3321 (print_xml): Free memory for escape_bufs.
3322 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
3323
3324 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
3325
3326 Replace `%push-parser' and `%push-pull-parser' with
3327 `%define push_pull "push"' and `%define push_pull "both"'.
3328 `%define push_pull "pull"' is the default.
3329 * doc/bison.texinfo (Push Decl, Push Parser Function,
3330 Pull Parser Function, Parser Create Function, Parser Delete Function):
3331 Update declarations.
3332 (Decl Summary, Table of Symbols): Replace %push-parser and
3333 %push-pull-parser entries with a %define push_pull entry.
3334 * data/bison.m4 (b4_percent_define_check_values): New macro.
3335 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
3336 definitions...
3337 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
3338 definitions...
3339 * data/push.c: ... to here and compute them from the value of the
3340 %define variable push_pull.
3341 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
3342 parsing requests here...
3343 * data/yacc.c: ... hack this to switch to push.c any time
3344 b4_use_push_pull_flag or the %define variable push_pull is set. This
3345 will go away when we mv push.c yacc.c.
3346 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
3347 push parsing is not supported since unused %define variables are
3348 reported anyway.
3349 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
3350 * src/muscle_tab.h (muscle_percent_define_check_values): Update
3351 comments for consistency with b4_percent_define_check_values.
3352 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
3353 muscles.
3354 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
3355 Remove.
3356 (prologue_declaration): Remove %push-parser and %push-pull-parser
3357 rules.
3358 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
3359 * tests/calc.at: Update declarations.
3360 * tests/input.at (%define enum variables): New test case.
3361 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
3362 declaration.
3363 (Push Parsing: Multiple impure instances): Update declaration.
3364 (Push Parsing: Unsupported Skeletons): New test case.
3365 * tests/torture.at (Exploding the Stack Size with Alloca): Update
3366 declaration.
3367 (Exploding the Stack Size with Malloc): Update declaration.
3368
3369 2007-09-24 Wojciech Polak <polak@gnu.org>
3370
3371 Add XSLT transformations.
3372
3373 * data/xslt/xml2dot.xsl: Transform XML into DOT.
3374 * data/xslt/xml2text.xsl: Transform XML into plain text.
3375 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
3376 * data/Makefile.am (xsltdir): New variable.
3377 (dist_xslt_DATA): Add xslt/*.xsl files.
3378
3379 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
3380
3381 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
3382 Problem reported by Wojciech Polak.
3383 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
3384 (xml_printf): Undo change I made on 21 September; that is,
3385 indent 2 spaces, not 1.
3386
3387 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
3388
3389 Pacify ./configure --enable-gcc-warnings.
3390 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
3391 `char const *' instead of `char *'.
3392 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
3393 local variable `sep'.
3394
3395 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
3396
3397 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
3398 elsewhere.
3399 * src/print-xml.c: Prefer "const" after types; that's more consistent.
3400 (xml_printf): Indent just 1 space for level.
3401 (e_char, xlate_char): Remove.
3402 (xml_escape_string): Rewrite to avoid undefined behavior (used
3403 storage that was freed from the stack).
3404 (xml_escape_n): Don't bother checking for subscript error.
3405
3406 2007-09-21 Wojciech Polak <polak@gnu.org>
3407
3408 Add Bison XML Automaton Report.
3409
3410 Add support for an -x option to generate an XML report.
3411 It is not documented yet.
3412 * src/print-xml.c: New file.
3413 * src/print-xml.h: Likewise.
3414 * lib/timevar.def (TV_XML): New var.
3415 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
3416 * src/conflicts.c: Include print-xml.h.
3417 (solved_conflicts_xml_obstack): New var.
3418 (log_resolution, conflicts_solve, conflicts_free):
3419 Add support for XML report.
3420 (conflicts_output_val): New function.
3421 * src/conflicts.h (conflicts_output_val): New decl.
3422 * src/files.c (spec_xml_file): New var.
3423 (compute_output_file_names, output_file_names_free): Add XML support.
3424 * src/files.h (spec_xml_file): New decl.
3425 * src/getargs.c (xml_flag): New var.
3426 (usage, short_options, long_options, getargs): Add XML support.
3427 * src/getargs.h (xml_flag): New decl.
3428 * src/gram.c: Include print-xml.h.
3429 (rule_lhs_print_xml, rule_rhs_print_xml):
3430 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
3431 New functions.
3432 * src/gram.h: Declare external ones.
3433 * src/main.c: Include print-xml.h.
3434 (main): Add XML support.
3435 * src/reduce.c: Include print-xml.h.
3436 (reduce_xml): New function.
3437 * src/reduce.h: Declare it.
3438 * src/state.c: Include print-xml.h.
3439 (state_new): Add XML support.
3440 (state_rule_lookahead_tokens_print_xml): New function.
3441 * src/state.h: Declare it.
3442 (struct state): New member solved_conflicts_xml.
3443 * src/symtab.c (symbol_class_get_string): New function.
3444 * src/symtab.h: Declare it.
3445
3446 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
3447
3448 * GNUmakefile: Switch to coreutils's version.
3449 * bootstrap: Likewise.
3450 * Makefile.cfg: Adjust to new GNUmakefile.
3451 * README-hacking: Likewise.
3452
3453 Import from gnulib:
3454
3455 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
3456 Bruno Haible <bruno@clisp.org>
3457
3458 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
3459 and is a script that invokes bison. Tighten the code. Add comments.
3460
3461 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
3462
3463 Spell "boolean" as "Boolean". Reported by Akim Demaille.
3464 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
3465 * doc/bison.texinfo (Decl Summary): Fix.
3466 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
3467 * tests/input.at (Boolean %define variables): Update output.
3468 * tests/skeletons.at (%define boolean variables: invalid skeleton
3469 defaults): Rename to...
3470 (%define Boolean variables: invalid skeleton defaults): ... this and
3471 update output.
3472
3473 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
3474
3475 In impure push mode, don't allow more than one yypstate to be allocated
3476 since multiple impure parsers would corrupt yynerrs.
3477 * data/push.c (yypstate_allocated): New static global variable
3478 initialized to 0.
3479 (yypull_parse): If yypstate_new returns 0, don't report it as memory
3480 exhaustion if yypstate_allocated is 1, but still return 2.
3481 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
3482 already 1. Otherwise, set it to 1.
3483 (yypstate_delete): Set it to 0.
3484 * tests/push.at (Push Parsing: Multiple impure instances): New test
3485 case.
3486
3487 2007-08-17 Bob Rossi <bob@brasko.net>
3488
3489 * doc/bison.texinfo (Push Decl): Document the push parser.
3490 (Table of Symbols): Ditto.
3491 (Pure Decl): Ditto.
3492 (Decl Summary): Ditto.
3493 (Multiple Parsers, Push Parser Function, Pull Parser Function,
3494 Parser Create Function, Parser Delete Function):
3495 Add new push parser symbols.
3496 (Table of Symbols): Document push-parser, push-pull-parser,
3497 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
3498
3499 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
3500
3501 Update to GPLv3.
3502 * doc/gpl-3.0.texi: New file.
3503 * doc/gpl.texi: Remove.
3504 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
3505 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
3506 * README-hacking, TODO, bootstrap, bootstrap.conf:
3507 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
3508 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
3509 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
3510 * data/lalr1.cc, data/lalr1.java, data/location.cc:
3511 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
3512 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
3513 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
3514 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
3515 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
3516 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
3517 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
3518 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
3519 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
3520 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
3521 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
3522 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
3523 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
3524 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
3525 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
3526 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
3527 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
3528 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
3529 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
3530 * src/complain.c, src/complain.h, src/conflicts.c:
3531 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
3532 * src/files.h, src/flex-scanner.h, src/getargs.c:
3533 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
3534 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
3535 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
3536 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
3537 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
3538 * src/print.c, src/print.h, src/print_graph.c:
3539 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
3540 * src/reduce.h, src/relation.c, src/relation.h:
3541 * src/revision.h, src/scan-code.h, src/scan-code.l:
3542 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
3543 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
3544 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
3545 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
3546 * tests/Makefile.am, tests/actions.at, tests/c++.at:
3547 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
3548 * tests/existing.at, tests/glr-regression.at:
3549 * tests/headers.at, tests/input.at, tests/java.at:
3550 * tests/local.at, tests/output.at, tests/push.at:
3551 * tests/reduce.at, tests/regression.at, tests/sets.at:
3552 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
3553 * tests/torture.at:
3554 Update to GPLv3.
3555
3556 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
3557
3558 Get rid of broken %no-parser, -n, and --no-parser implementation and
3559 documentation.
3560 * TODO: Don't mention them.
3561 * doc/bison.1: Likewise.
3562 * doc/bison.texinfo (Decl Summary): Likewise.
3563 (Bison Options): Likewise.
3564 (Option Cross Key): Likewise.
3565 * src/getargs.c (no_parser_flag): Remove global variable.
3566 (usage): Don't print description of -n and --no-parser.
3567 (long_options): Remove --no-parser entry here.
3568 (getargs): Remove -n case in the switch here.
3569 * src/getargs.h (no_parser_flag): Remove extern.
3570 * tests/regression.at (Web2c Actions): Remove comment that mentions
3571 --no-parser.
3572
3573 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
3574
3575 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
3576 name user variables starting with `yy'. Just pass NULL instead of a
3577 dummy local &yylval to yypush_parse.
3578 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
3579 starting with `yy'.
3580
3581 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
3582
3583 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
3584 true since it's then always used regardless of whether yyoverflow is
3585 defined. Reported by Christian Burger at
3586 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
3587 * THANKS: Add Christian Burger.
3588
3589 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
3590 node names: say "Decl Summary" not "Bison Declaration Summary".
3591
3592 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
3593
3594 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
3595 determine whether this function has already complained about an invalid
3596 value for a %define boolean variable, don't check whether Bison has
3597 ever examined the value. As written, the check was a tautology.
3598 Instead, record and check for this complaint using a separate muscle.
3599
3600 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
3601
3602 Fix push parsing memory leak reported by Brandon Lucia at
3603 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
3604 * THANKS: Add Brandon Lucia.
3605 * data/push.c (yypstate_delete): Free the stack if it was reallocated
3606 but the parse never completed and thus freed it.
3607 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
3608 * tests/testsuite.at: Include push.at.
3609 * test/push.at: New.
3610 (Push Parsing: Memory Leak for Early Deletion): New test case.
3611
3612 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
3613
3614 Improve handling of multiple S/R conflicts in the same state and of S/R
3615 conflicts involving multiple reductions.
3616 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
3617 set for a state here or Bison will abort if it is reassigned on a
3618 later conflicted reduction in the same state.
3619 Similarly, don't finalize and assign the solved conflicts report here
3620 or it will be lost if it is reassigned on a later conflicted reduction
3621 in the same state.
3622 (set_conflicts): Instead, assign them both here after all S/R conflicts
3623 in the state have been fully examined.
3624 * src/print.c (shift_set): Rename to...
3625 (no_reduce_set): ... this.
3626 (print_reductions): Update for rename, and add %nonassoc error action
3627 tokens to no_reduce_set so that, when printing the first remaining
3628 reduction on an error action token, the reduction is enclosed in
3629 brackets.
3630 (print_results): Update for rename.
3631 * tests/conflicts.at (Solved conflicts report for multiple reductions
3632 in a state): New test case.
3633 (%nonassoc error actions for multiple reductions in a state): New test
3634 case.
3635
3636 * src/main.c (main): Don't depend on C99 features.
3637
3638 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
3639
3640 * build-aux/.cvsignore: Add compile.
3641 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
3642 uniwidth.
3643
3644 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
3645
3646 * bootstrap (slurp): Create target directories that don't exist.
3647 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
3648
3649 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
3650
3651 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
3652 than item number.
3653 * closure.c (closure): Likewise.
3654 * state.h (reductions): Comment sorting of rules.
3655 (state): Comment sorting of items.
3656
3657 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
3658
3659 Fix C++ test cases after recent Gnulib changes. Discussed starting at
3660 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
3661 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
3662 definition in order to avoid Gnulib headers since we don't use config.h
3663 here.
3664 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
3665 rather than AT_DATA so that config.h is included.
3666
3667 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
3668
3669 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
3670 instead of fprintf. Guard these functions with #if YYDEBUG instead of
3671 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
3672 and so that YYFPRINTF is guaranteed to be defined here.
3673
3674 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
3675
3676 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
3677 with...
3678 (muscle_percent_define_check_values): ... this more helpful function.
3679 Again, it's not used yet, but it will be.
3680 * src/muscle_tab.h: Likewise.
3681
3682 Improve some comments in parser table construction.
3683 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
3684 (generate_states): Don't mention ruleset, which is internal to closure.
3685 * src/closure.c (closure): Explain sorting of core and itemset, which
3686 is required for this function to behave correctly.
3687 * src/closure.h (closure): Mention sorting.
3688
3689 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
3690
3691 * src/lalr.c (state_lookahead_tokens_count): For code readability,
3692 move the check for disabled transitions to an aver since conflict
3693 resolution hasn't happened yet.
3694
3695 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
3696 labels a state as inconsistent just because it has error transitions.
3697 The original form of this check appeared in revision 1.1 of lalr.c,
3698 which was committed on 1991-12-21. Now (at least), changing the
3699 consistency label on such a state appears to have no useful effect in
3700 any of the places it is examined, which I enumerate below. The key
3701 point to understanding each item in this enumeration is that a state
3702 with an error transition is labelled consistent in the first place only
3703 if it has no rules, so the check cannot matter for states that have
3704 rules. (1) Labelling a state as inconsistent will cause set_conflicts
3705 to try to identify its conflicts, and a state must have *rules* to have
3706 conflicts. (2) Labelling a state as inconsistent will affect how
3707 action_row sets the default *rule* for the state. (3) Labelling a
3708 state as inconsistent will cause build_relations to add lookback edges
3709 to *rules* in that state.
3710 * src/state.h (struct state): Word the comment for member consistent
3711 more carefully.
3712
3713 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
3714
3715 Don't depend on C99 features.
3716 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
3717 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
3718 * src/reader.c (check_and_convert_grammar): Fix for-loop.
3719 * src/state.c (state_mark_reachable_states): Fix for-loop.
3720 (state_remove_unreachable_states): Fix for-loop.
3721
3722 Don't widen struct state with member reachable just to temporarily
3723 record reachability. Instead, use a local bitset.
3724 * src/state.h (struct state): Remove member.
3725 * src/state.c (state_new): Don't initialize it.
3726 (state_mark_reachable_states): Rename to...
3727 (state_record_reachable_states): ... this, and use bitset.
3728 (state_remove_unreachable_states): Use bitset.
3729
3730 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
3731
3732 * src/Makefile.am (yacc): Quote target action commands properly so
3733 that the yacc script isn't corrupt. Reported by Hans Aberg at
3734 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
3735
3736 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
3737 the case of pure parsers. Reported by Frans Englich at
3738 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
3739 * THANKS: Add Frans Englich.
3740
3741 * NEWS (2.3a+): In the %code entry, reference section `Bison
3742 Declaration Summary' from the manual now since the %code summary has
3743 moved there.
3744 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
3745 in the rules section must be terminated by semicolons.
3746
3747 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
3748
3749 Extend the front-end API for %define variables to more completely
3750 mirror the back-end. This will be useful in the future.
3751 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
3752 Update comments to mention the new front-end counterparts of these
3753 macros.
3754 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
3755 for muscle_string_decode and muscle_location_decode.
3756 (muscle_string_decode): New static function.
3757 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
3758 (muscle_percent_define_get, muscle_percent_define_ifdef): New
3759 functions.
3760 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
3761 muscle_percent_define_get to mimic the b4_percent_define_flag_if
3762 implementation more closely.
3763 (muscle_percent_define_invalid_value): New function.
3764 * src/muscle_tab.h (muscle_percent_define_get,
3765 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
3766 Prototype.
3767
3768 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
3769
3770 * NEWS (2.3a+): Mention yesterday's state-removal change.
3771 (2.3a): Remove the %language entry, which was added after 2.3a.
3772 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
3773 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
3774 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
3775 tests/existing.at: Update copyright date.
3776
3777 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3778
3779 If conflict resolution makes states unreachable, remove those states,
3780 report rules that are then unused, and don't report conflicts in those
3781 states.
3782 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
3783 New global function.
3784 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
3785 function.
3786 * src/main.c (main): After conflict resolution, remove the unreachable
3787 states and update all data structures that reference states by number.
3788 * src/state.c (state_new): Initialize each state's reachable member to
3789 false.
3790 (state_mark_reachable_states): New static function.
3791 (state_remove_unreachable_states): New global function.
3792 * src/state.h (struct state): Add member bool reachable.
3793 (state_remove_unreachable_states): Prototype.
3794 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3795 New test case.
3796 * tests/existing.at (GNU pic Grammar): Update test case output now that
3797 an unused rule is discovered.
3798
3799 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3800
3801 Minor code cleanup in parser table construction.
3802 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
3803 (new_itemsets, save_reductions): Update for rename to nitemset.
3804 * src/closure.c (nritemset): Rename to...
3805 (nitemset): ... this since the "r" appears to meaningless and isn't
3806 used in the comments.
3807 (closure): Update for rename.
3808 * src/closure.h (nritemset): Update extern to...
3809 (nitemset): ... this.
3810 * src/lalr.c (LA): Fix a typo in comments.
3811 * src/print.c (print_core): Update for rename to nitemset.
3812 * src/print_graph.c (print_graph): Likewise.
3813 * src/state.h: Fix some typos in header comments.
3814
3815 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
3816
3817 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
3818 still sticks to ASCII. Sorry!
3819
3820 * README-hacking: New file, taken mostly from coreutils, with changes
3821 for Bison. Contains much of the contents of:
3822 * README-cvs: Remove.
3823 * bootstrap: Sync from gnulib.
3824 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
3825 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
3826
3827 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
3828
3829 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
3830 Setzer.
3831 (Java Differences): Fix some typos.
3832 * THANKS: Add Sebastian Setzer.
3833
3834 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
3835
3836 * data/java.m4 (b4_single_class_if): Remove.
3837 (b4_abstract_if): Look at "%define abstract".
3838 (b4_lexer_if): New.
3839 (b4_union_name): Rename...
3840 (b4_yystype): ... to this. Map to "%define stype".
3841 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
3842 b4_maybe_throws): Fix quoting.
3843 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
3844 * data/lalr1.java (Lexer interface): Always define.
3845 (Lexer interface within parser class): Remove.
3846 (YYLexer class): New, used when "%code lexer" is present.
3847 (constructor): When "%code lexer" is used, pass %lex-param
3848 to the lexer constructor.
3849 (yylex, yyparse): Remove %lex-param from method invocations
3850 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
3851
3852 * doc/bison.texinfo (Java Bison Interface): Mention "%define
3853 abstract". Rename "%define union_name" to "%define stype".
3854 Rename method names according to previous patch.
3855 (Java Scanner Interface): Describe "%code lexer" instead of
3856 "%pure-parser" and "%define single_class".
3857 (Java Differences): Mention "%code lexer".
3858
3859 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
3860 Include scanner here, using macros from tests/local.at.
3861 (AT_DATA_CALC_Y): Remove final argument.
3862 (_AT_CHECK_JAVA_CALC): Likewise.
3863 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
3864 of %locations and %error-verbose.
3865 (main): Test with and without %lex-param.
3866 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
3867 (AT_BISON_OPTION_POPDEFS): Pop it.
3868
3869 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3870
3871 DJGPP spefic issue. Inhibit the use of disallowed characters for
3872 file name genertion on Win98, WinXP, etc. These are |<>":?*\
3873 and concern testsuite case 46.
3874 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
3875 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
3876 * djgpp/config.bat: Inhibit the use of disallowed characters.
3877
3878 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
3879
3880 Miscellaneous %define and %code cleanup.
3881 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
3882 values are interpreted.
3883 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
3884 documentation a little more.
3885 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
3886 muscle_percent_define_insert, muscle_percent_code_grow): New
3887 functions/macros.
3888 * src/muscle_tab.h (muscle_percent_define_insert,
3889 muscle_percent_code_grow): Prototype.
3890 * src/parse-gram.y (prologue_declaration): Use
3891 muscle_percent_define_insert and muscle_percent_code_grow when parsing
3892 %define and %code directives.
3893
3894 Make it easy to share %define boolean variables between the front-end
3895 and back-end. Though not used yet, this will be useful in the future.
3896 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
3897 Bison uses of names rather than just skeleton uses of names.
3898 (b4_percent_define_get, b4_percent_define_ifdef): Rename
3899 b4_percent_define_skeleton_variables(VARIABLE) to
3900 b4_percent_define_bison_variables(VARIABLE).
3901 (b4_percent_code_get, b4_percent_code_ifdef): Rename
3902 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
3903 b4_percent_code_bison_qualifiers(QUALIFIER).
3904 (b4_check_user_names_wrap): Update for renames.
3905 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
3906 muscle_percent_define_default): New functions mimicking
3907 b4_percent_define_flag_if and b4_percent_define_default.
3908
3909 For %define variables, report locations for invalid values and
3910 redefinitions.
3911 * data/bison.m4 (b4_percent_define_flag_if): Read
3912 b4_percent_define_loc(VARIABLE) to report the location of an invalid
3913 value for VARIABLE.
3914 (b4_percent_define_default): Save a special location in
3915 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
3916 must later be reported as invalid.
3917 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
3918 functions.
3919 (muscle_percent_define_insert): Record the location of VARIABLE in
3920 muscle percent_define_loc(VARIABLE), and use it to report the previous
3921 location for a redefinition.
3922 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
3923 (muscle_percent_define_default): Update like b4_percent_define_default.
3924 (muscle_grow_user_name_list): Rename to...
3925 (muscle_user_name_list_grow): ... this for consistency and use
3926 muscle_location_grow.
3927 * src/muscle_tab.h (muscle_location_grow): Prototype.
3928 * tests/input.at (%define errors): Update expected output.
3929 * tests/skeletons.at (%define boolean variables: invalid skeleton
3930 defaults): New test case.
3931
3932 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
3933
3934 * src/print.c (lookahead_set, state_default_rule): Remove.
3935 (print_reductions): Replace state_default_rule invocation with
3936 equivalent use of yydefact, which was computed in token_actions in
3937 tables.c.
3938 (print_results): Don't allocate lookahead_set.
3939
3940 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
3941
3942 * data/lalr1.java: Prefix all private members with yy.
3943
3944 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
3945
3946 Use YYFPRINTF instead of fprintf where appropriate. Reported by
3947 Sebastien Fricker at
3948 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
3949 * THANKS: Add Sebastien Fricker.
3950 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
3951 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
3952 accept a variable number of arguments.
3953
3954 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
3955
3956 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
3957
3958 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3959
3960 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
3961 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
3962 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
3963
3964 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
3965
3966 Undo my 2007-02-07 change, switching back to the c-strcase module
3967 introduced in the 2007-02-03 change. Bruno Haible reported that
3968 the 2007-02-07 change would be dangerous in Turkish if we add a
3969 language whose name contains "i", since "i" is not lowercase "I"
3970 in Turkish.
3971 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
3972 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
3973 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
3974 * m4/.cvsignore: Remove strcase.m4.
3975 * src/getargs.c: Revert 2007-02-07 change, as follows.
3976 Include c-strcase.h.
3977 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
3978
3979 2007-02-11 Bruno Haible <bruno@clisp.org>
3980
3981 Enable the Java related testsuite tests when the only Java compiler
3982 found is a gcj < 4.3. Discussed at
3983 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
3984 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
3985
3986 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
3987
3988 * data/Makefile.am: Update copyright date.
3989 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
3990 yypstate_new returns NULL.
3991 (yypstate_new): Return NULL if malloc does.
3992 * src/reader.c (packgram): Move translation of rule actions from the
3993 beginning of packgram to...
3994 (check_and_convert_grammar): ... here right before packgram is invoked
3995 so it's easier to write more complete comments, and remove redundant
3996 code.
3997
3998 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
3999
4000 As in semantic actions, make @$ in %initial-action, %destructor, and
4001 %printer imply %locations.
4002 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
4003 scanning @$.
4004 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
4005 (@$ in %initial-action implies %locations,
4006 @$ in %destructor implies %locations,
4007 @$ in %printer implies %locations): ... these new test cases.
4008
4009 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
4010
4011 Undo most of the 2007-02-03 change, switching to the strcase module
4012 now that gnulib strcase has been fixed.
4013 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
4014 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
4015 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
4016 * m4/.cvsignore: Add strcase.m4.
4017 * src/getargs.c: Revert 2007-02-03 change, as follows.
4018 Don't include c-strcase.h.
4019 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
4020 strcasecmp has "unspecified behavior" outside the POSIX locale,
4021 but it works fine in practice if at least one argument is ASCII,
4022 as is the case in Bison.
4023
4024 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
4025
4026 * tests/java.at: Skip tests if only one of javac/java is present.
4027 Reported by Joel E. Denny.
4028 * tests/atlocal.in: Adjust copyright years.
4029
4030 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
4031
4032 * data/lalr1.java (Stack): Work around old verifiers that disallow
4033 access to the private fields of an inner class, from the outer class.
4034 We can make Stack's fields public because user code doesn't have access
4035 to the instance of Stack used by parse(). Reported by Paul Eggert.
4036
4037 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
4038
4039 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
4040 the right spot for these files?
4041 * bootstrap.conf (gnulib_modules): Add c-strcase.
4042 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
4043 c-strncasecmp.c.
4044 * src/getargs.c: Include c-strcase.h.
4045 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
4046 to avoid unspecified behavior.
4047
4048 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
4049
4050 * doc/bison.texinfo (Decl Summary): Correct typo.
4051
4052 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
4053
4054 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
4055 Complain if the value does not match empty, "true" or "false".
4056 * data/c++.m4: Adjust default definitions of %define variables.
4057 * data/java.m4: Adjust default definitions of %define variables.
4058 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
4059 to above behavior.
4060 * tests/input.at (Boolean %define variables): Test new behavior.
4061
4062 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
4063
4064 * NEWS: Mention java.
4065 * TODO: Remove things that are done.
4066 * bootstrap.conf: Add javacomp-script and javaexec-script.
4067 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
4068
4069 * data/Makefile.am: Add new files.
4070 * data/java-skel.m4: New.
4071 * data/java.m4: New.
4072 * data/lalr1.java: New.
4073
4074 * doc/bison.texinfo: Put "A Complete C++ Example" under
4075 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
4076 under Other Languages.
4077
4078 * src/getargs.c (valid_languages): Add Java.
4079 * src/getargs.h (struct bison_language): Update size of string fields.
4080
4081 * tests/Makefile.am: Add java.at.
4082 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
4083 * tests/java.at: New.
4084 * tests/testsuite.at: Include it.
4085
4086 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
4087
4088 Clean up.
4089 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
4090 at_directive_argv arguments so these no longer have to be global
4091 variables. Also, update the implementation for the following changes.
4092 (fail_for_at_directive_too_many_args,
4093 fail_for_at_directive_too_few_args): Add at_directive_name argument.
4094 (at_directive_name): Remove as at_directive_argv[0] will be used for
4095 this now.
4096 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
4097 for the directive name.
4098 (at_directive_argc, at_directive_argv): Make these local within
4099 skel_lex instead of global.
4100 (INITIAL): Update directive start action for above changes.
4101 (SC_AT_DIRECTIVE_ARG): Rename to...
4102 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
4103 (SC_AT_DIRECTIVE_SKIP_WS): Update.
4104 (scan_skel): Move yylex_destroy to...
4105 (skel_scanner_free): ... here.
4106 * tests/skeletons.at (installed skeleton file name): Rename to...
4107 (installed skeleton file names): ... this.
4108
4109 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
4110
4111 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
4112 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
4113 Summary" not "Directives".
4114 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
4115 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
4116 since the former is now the more complete one.
4117 (Prologue Alternatives): Likewise and do the same for %defines.
4118 (Table of Symbols): Add summary of %code, add summary of %define, and
4119 move full %code documentation to...
4120 (Decl Summary): ... here for consistency with other entries in these
4121 sections.
4122 Move %define entry in order to keep this list alphabetized.
4123 Reword %define entry a little to put less emphasis on the skeleton
4124 concept, which most users shouldn't have to think about.
4125
4126 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
4127
4128 Adjust to recent gnulib changes.
4129 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
4130 Add string.h, string_.h, unistd_.h, wchar_.h.
4131 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
4132 * src/system.h: Don't include <stpcpy.h>; this is now done by
4133 <string.h>.
4134
4135 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
4136
4137 Simplify implementation of unqualified %code, implement macros for
4138 uniform treatment of boolean %define flags. Document %define.
4139 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
4140 b4_percent_code_ifdef): New.
4141 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
4142 * data/c++.m4: Define default value for global_tokens_and_yystype.
4143 * data/glr.cc: Likewise.
4144 * data/location.cc: Use b4_percent_define_flag_if.
4145
4146 * doc/bison.texinfo (Decl Summary): Document %define.
4147
4148 * src/parse-gram.y (Unqualified %code): Change muscle name to
4149 b4_percent_code().
4150 (content.opt): Default to empty.
4151
4152 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4153
4154 Implement support for relative and absolute skeleton file names.
4155 Discussed starting at
4156 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
4157 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
4158 (Bison Options): Document in --skeleton entry.
4159 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
4160 full_skeleton can't necessarily hold all of pkgdatadir.
4161 If the specified skeleton file name contains a `/', don't prepend
4162 pkgdatadir.
4163 * src/parse-gram.y (prologue_declaration): If the specified skeleton
4164 file name contains a `/', prepend the grammar file directory.
4165 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
4166 * skeletons.at: New file.
4167 (relative skeleton file names): New test case.
4168 (installed skeleton file names): New test case.
4169 * tests/testsuite.at: Include skeletons.at.
4170
4171 * bootstrap: Update copyright to 2007.
4172
4173 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
4174
4175 * bootstrap: Remove occurrences of .#bootmp from the files.
4176
4177 2007-01-17 Akim Demaille <akim@epita.fr>
4178
4179 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
4180 nonterminals.
4181 Use per-type %printer.
4182
4183 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4184
4185 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
4186 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4187 djgpp/config.site, src/files.c, src/files.h, src/main.c,
4188 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
4189 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
4190 tests/glr-regression.at, tests/input.at, tests/local.at,
4191 tests/output.at, tests/torture.at: Update copyright to 2007.
4192
4193 2007-01-16 Akim Demaille <akim@epita.fr>
4194
4195 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
4196 error code.
4197 (Calc++ Scanner): Exit with failure if we can't open the input
4198 file.
4199 Accept "-" standing for stdin.
4200 (Calc++ Top Level): Print the result only if the parsing was
4201 successful.
4202
4203 2007-01-16 Akim Demaille <akim@epita.fr>
4204
4205 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
4206
4207 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
4208 and Joel E. Denny <jdenny@ces.clemson.edu>
4209
4210 Clean up %define and %code implementation in M4 some. Most
4211 importantly, rename all related macros to be in the b4_percent_define
4212 and b4_percent_code namespaces. Also, complete support for `.' in
4213 %define variable names and %code qualifiers.
4214 * data/bison.m4 (b4_check_user_names): Check for special
4215 "SKELETON-NAMESPACE(name)" macros instead of using two nested
4216 m4_foreach loops.
4217 (b4_get_percent_define, b4_get_percent_code): Rename to...
4218 (b4_percent_define_get, b4_percent_code_get): ... these.
4219 Extend documentation with examples.
4220 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
4221 b4_percent_define_skeleton_variables and
4222 b4_percent_code_skeleton_qualifiers.
4223 Expect any value for the %define variable `foo' to be stored in the
4224 macro named `b4_percent_define(foo)'; expect any %code blocks for the
4225 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
4226 expect any unqualified %code blocks to be stored in a macro named
4227 `b4_percent_code_unqualified'.
4228 Use m4_indir so that %define variable names and %code qualifiers can
4229 contain `.', which is allowed by the grammar parser.
4230 (b4_percent_define_default): New macro to set a default value for a
4231 %define variable.
4232 (m4_wrap): Update wrapped code, and fix some underquoting.
4233 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
4234 Expect grammar uses of %define variables and %code qualifiers to be
4235 defined in b4_percent_define_user_variables and
4236 b4_percent_code_user_qualifiers.
4237 * data/c++.m4: Use b4_percent_define_default rather than
4238 m4_define_default. Fix some underquoting. Skeleton usage of %define
4239 variable define_location_comparison now implies skeleton usage of
4240 %define variable filename_type.
4241 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4242 data/push.c, data/yacc.c: Update macro names.
4243 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
4244 muscle names.
4245
4246 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4247
4248 DJGPP specific issues.
4249
4250 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
4251 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
4252
4253 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4254
4255 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
4256 run parsers in all tests so that Valgrind is invoked during
4257 maintainer-check-valgrind.
4258 (Duplicate representation of merged trees): Free all semantic values.
4259 (Duplicated user destructor for lookahead): Likewise.
4260
4261 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4262
4263 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
4264 command-line prefix.
4265 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
4266 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
4267 miss Valgrind messages.
4268 (Exploding the Stack Size with Malloc): Likewise.
4269
4270 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4271
4272 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
4273 locals. Reported by Juan Manuel Guerrero at
4274 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
4275 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
4276 Fix some indentation also.
4277 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
4278 explaining this issue.
4279
4280 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
4281 and Joel E. Denny <jdenny@ces.clemson.edu>
4282
4283 Simplify union and prologue handling, and escape union and lex/parse
4284 params with digraphs.
4285 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
4286 values to the empty string since these are no longer guaranteed
4287 initialized by the front-end.
4288 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
4289 braces around b4_user_stype since this is no longer done by the
4290 front-end.
4291 * src/files.c, src/files.h (pre_prologue_obstack,
4292 post_prologue_obstack): Remove.
4293 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
4294 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
4295 with digraphs. This fixes lex params and parse params.
4296 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
4297 * src/output.c (prepare): Remove muscle insertion of the prologues.
4298 (output): Remove freeing of pre_prologue_obstack and
4299 post_prologue_obstack.
4300 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
4301 than prologue_augment for prologue parsing so you don't need prologue
4302 obstacks.
4303 (grammar_declaration): For %union RHS, use `braceless' instead of
4304 "{...}" so that braces are already stripped and code is escaped with
4305 digraphs.
4306 * src/reader.c (prologue_augment): Remove.
4307 (reader): Remove initialization of pre_prologue_obstack and
4308 post_prologue_obstack.
4309 * src/reader.h (prologue_augment): Remove.
4310
4311 * data/c.m4: Remove stray parenthesis.
4312
4313 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4314
4315 Remove quotes from variables names in %define directives and from
4316 qualifiers in %code directives, and restrict the characters that are
4317 allowed in them to M4-friendly ones. For %define, continue to support
4318 the quoted form as a deprecated feature. Discussed starting at
4319 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
4320 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
4321 %code.
4322 * doc/bison.texinfo (Prologue Alternatives): Update.
4323 (Decl Summary): In %defines entry, update mention of `%code requires'
4324 and `%code provides'.
4325 (C++ Location Values): Update %define uses.
4326 (Calc++ Parser Interface): Likewise.
4327 (Calc++ Parser): Likewise, and update `%code requires' uses.
4328 (Table of Symbols): Update %code documentation.
4329 * src/parse-gram.y (prologue_declaration): For %define variables, use
4330 `variable' instead of `STRING'.
4331 (grammar_declaration): For %code qualifiers, use `ID' instead of
4332 `STRING'.
4333 (variable): New nonterminal that takes an `ID' or a `STRING'.
4334 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
4335 and %define uses.
4336 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
4337 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
4338 (%define errors): Update %define uses.
4339
4340 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4341
4342 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
4343 instead of muscle_insert for %define values so that M4-special
4344 characters are replaced with digraphs.
4345 * tests/input.at (%define errors): Extend to check weird values.
4346
4347 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4348
4349 Instead of having skeletons declare all valid %define variables and
4350 %code qualifiers, provide macros that retrieve the associated values
4351 and build these lists automatically. Thus Bison will now warn when a
4352 variable or qualifier is not used by the skeleton in the current
4353 invocation regardless of whether it might sometimes be used by that
4354 skeleton in other invocations. Also, move all %define value macros to
4355 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
4356 form, which is replaced by %code.
4357 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
4358 (b4_check_user_names): ... this, and change the series of valid name
4359 arguments to a single list argument for names used in the skeleton
4360 similar to the existing list argument for names used in the grammar.
4361 Warn instead of complaining.
4362 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
4363 values and %code code, to format %code code properly, and to build
4364 lists of all %define variables and %code qualifiers used in the
4365 skeleton: b4_skeleton_percent_define_variables and
4366 b4_skeleton_percent_code_qualifiers.
4367 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
4368 Remove, and...
4369 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
4370 the skeleton names lists can finish building first. In place of
4371 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
4372 expect the lists b4_user_percent_define_variables and
4373 b4_user_percent_code_qualifiers.
4374 * data/c++.m4: Where setting default values for b4_parser_class_name,
4375 b4_location_type, b4_filename_type, b4_namespace, and
4376 b4_define_location_comparison, update their names to the
4377 b4_percent_define_ namespace.
4378 * data/glr.c: Don't use b4_check_percent_define_variables and
4379 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
4380 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
4381 (b4_parser_class_name, b4_namespace): Define these using
4382 b4_get_percent_define for parser_class_name and namespace.
4383 * data/location.cc: Use b4_get_percent_define.
4384 * data/push.c: Don't use b4_check_percent_define_variables and
4385 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
4386 * data/yacc.c: Likewise, and don't call m4_exit in
4387 b4_use_push_for_pull_if or m4_wrap code will never execute.
4388 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
4389 Rename to...
4390 (muscle_grow_user_name_list): ... this for consistency with the
4391 terminology used in bison.m4.
4392 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
4393 %define variable names, and rename muscle used_percent_define_variables
4394 to user_percent_define_variables.
4395 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
4396 user_percent_code_qualifiers.
4397 (content): Remove.
4398 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
4399 {CODE} form is no longer accepted.
4400 * tests/input.at (Reject bad %code qualifiers): Rename to...
4401 (Reject unused %code qualifiers): ... this, and update test output.
4402 (%define error): Update test output.
4403
4404 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
4405
4406 Check for unrecognized %define variables similar to checking for
4407 unrecognized %code qualifiers. Check for redefined %define variables.
4408 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
4409 generalizes...
4410 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
4411 (b4_check_percent_define_variables): New, also wraps it.
4412 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
4413 variables using b4_check_percent_define_variables.
4414 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
4415 all those exercised in the test suite and all those listed in the
4416 `Default values' section of c++.m4. Are there others?
4417 * data/push.c, data/yacc.c: Declare no valid %define variables.
4418 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
4419 similar to muscle_find, but it works even when the muscle stores a
4420 const value.
4421 (muscle_grow_used_name_list): New function for constructing the used
4422 name list muscles that b4_check_for_unrecognized_names requires.
4423 * src/parse-gram.y (prologue_declaration): Warn if a variable is
4424 %define'd more than once. Define the b4_used_percent_define_variables
4425 muscle with muscle_grow_used_name_list.
4426 (grammar_declaration): Abbreviate %code code with
4427 muscle_grow_used_name_list.
4428 * tests/input.at (%define errors): New.
4429
4430 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4431
4432 Provide warn_at, complain_at, and fatal_at function callbacks to the
4433 skeletons, and use this for %code qualifier complaints.
4434 * data/bison.m4 (b4_error_at): New, invoked by...
4435 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
4436 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
4437 @fatal_at(...@) directives.
4438 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
4439 qualifiers in b4_used_percent_code_qualifiers and to use
4440 b4_complain_at.
4441 * src/location.c, src/location.h (boundary_set_from_string): New global
4442 function.
4443 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
4444 function.
4445 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
4446 to b4_used_percent_code_qualifiers.
4447 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
4448 function.
4449 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
4450 (lineno): Rename to...
4451 (out_lineno): ... this so I don't misunderstand it again.
4452 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
4453 here; these newlines are in the input but not the output file.
4454 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
4455 (at_directive_perform): ... this new static function, and add handling
4456 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
4457 directives.
4458 * tests/input.at (Reject bad %code qualifiers): Update test output with
4459 locations and extend.
4460
4461 * tests/output.at (Output file name: [, Output file name: ]): Remove
4462 bogus comment about these tests failing.
4463
4464 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4465
4466 Clean up b4_check_percent_code_qualifiers a little.
4467 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
4468 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
4469 documentation and add examples.
4470 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
4471 qualifiers here.
4472
4473 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
4474
4475 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
4476 unreliable -- especially when they're hidden inside another macro.
4477 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
4478 data/c.m4: Remove m4_divert(-1).
4479 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4480 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
4481 m4_divert_push(0) and m4_divert_pop(0).
4482 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
4483 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
4484 pushed and popped by m4sugar, should be first on the stack.
4485
4486 Provide warn, complain, and fatal function callbacks to the skeletons.
4487 This provides more flexibility than m4_fatal, improves the error
4488 message format, and captures messages for translation. Discussed
4489 starting at
4490 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
4491 * data/bison.m4 (b4_error): New, invoked by...
4492 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
4493 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
4494 directives. Because these M4 macros might be called when the current
4495 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
4496 the previous removal of uses of m4_divert, which caused trouble.
4497 (b4_check_percent_code_qualifiers): Use b4_complain instead of
4498 m4_fatal to report unrecognized %code qualifiers.
4499 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
4500 push parser requests.
4501 * data/glr.c: Use b4_complain instead of m4_fatal to report
4502 non-deterministic push parser requests.
4503 Update @output usage to @output(...@) form.
4504 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
4505 report missing %defines. Update @output usage to @output(...@) form.
4506 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
4507 @output(...@) form.
4508 * src/main.c (main): Invoke skel_scanner_free.
4509 * src/scan-skel.h (skel_scanner_free): Prototype new function.
4510 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
4511 obstack_for_string from flex-scanner.h.
4512 (YY_DECL): Use to declare skel_lex static.
4513 (decode_at_digraphs): Remove; now handled in the new
4514 SC_AT_DIRECTIVE_ARG start condition.
4515 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
4516 functions.
4517 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
4518 at_directive_argv): New static globals.
4519 (INITIAL): Use fail_for_invalid_at.
4520 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
4521 recognize the start of a generalized `@directive(...@)' form and
4522 start...
4523 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
4524 directive args (using the new obstack_for_string), to decode the
4525 contained @ diagraphs, and to perform the directive. It recognizes
4526 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
4527 @output(...@).
4528 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
4529 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
4530 `@,'.
4531 (scan_skel): Initialize obstack_for_string on the first call.
4532 (skel_scanner_free): New function to free obstack_for_string.
4533 * tests/input.at (Reject bad %code qualifiers): Update test output.
4534
4535 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
4536
4537 Consolidate the 4 prologue alternative directives (%code, %requires,
4538 %provides, and %code-top) into a single %code directive with an
4539 optional qualifier field. Discussed at
4540 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
4541 * NEWS (2.3a+): Rewrite the existing entry for the prologue
4542 alternatives.
4543 * doc/bison.texinfo (Prologue Alternatives): Update.
4544 (Decl Summary): Update to %code "requires" and %code "provides".
4545 (Calc++ Parser): Update to %code "requires".
4546 (Table of Symbols): Remove entries for %requires, %provides, and
4547 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
4548 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
4549 are replaced by b4_percent_code_provides and b4_percent_code_requires,
4550 which are skeleton-specific.
4551 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
4552 declare what %code qualifiers it supports and to complain if any other
4553 qualifiers were used in the grammar.
4554 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
4555 and b4_user_code([b4_percent_code_provides]) in place of
4556 b4_user_requires and b4_user_provides.
4557 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
4558 Add b4_user_code([b4_percent_code_top]) and
4559 b4_user_code([b4_percent_code]).
4560 Invoke b4_check_percent_code_qualifiers.
4561 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
4562 PERCENT_REQUIRES): Remove.
4563 (grammar_declaration): Remove RHS's for %code-top, %provides, and
4564 %requires. Rewrite the %code RHS as the unqualified form defining the
4565 muscle b4_percent_code. Add another RHS for the qualified %code form,
4566 which defines muscles of the form b4_percent_code_QUALIFIER and the
4567 b4_used_percent_code_qualifiers muscle.
4568 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
4569 PERCENT_REQUIRES): Remove.
4570 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
4571 %code "requires" and %code "provides".
4572 * tests/input.at (Reject bad %code qualifiers): New.
4573
4574 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
4575
4576 Use the new code_props interface for destructors and printers.
4577 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
4578 printer_location members, and change the type of the destructor and
4579 printer members to code_props.
4580 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
4581 symbol_printer_get, semantic_type_destructor_set,
4582 semantic_type_printer_set, default_tagged_destructor_set,
4583 default_tagless_destructor_set, default_tagged_printer_set,
4584 default_tagless_printer_set): Use code_props in arguments and return
4585 types in place of char const * and location.
4586 (symbol_destructor_location_get, symbol_printer_location_get): Remove
4587 since the locations are now contained in the return of
4588 symbol_destructor_get and symbol_printer_get.
4589 * src/output.c (symbol_destructors_output, symbol_printers_output):
4590 Replace with...
4591 (symbol_code_props_output): ... this to eliminate duplicate code.
4592 (output_skeleton): Update to use symbol_code_props_output.
4593 * src/reader.c (symbol_should_be_used): Update use of
4594 symbol_destructor_get.
4595 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
4596 Update uses of the various _destructor_set and _printer_set functions.
4597 * src/symtab.c: (default_tagged_destructor_location,
4598 default_tagless_destructor_location, default_tagged_printer_location,
4599 default_tagless_printer_location): Remove since we...
4600 (default_tagged_destructor, default_tagless_destructor,
4601 default_tagged_printer, default_tagless_printer): ... change the type
4602 of these to code_props.
4603 (symbol_new, semantic_type_new, symbol_destructor_set,
4604 semantic_type_destructor_set, symbol_destructor_get,
4605 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
4606 symbol_check_alias_consistency, default_tagged_destructor_set,
4607 default_tagless_destructor_set, default_tagged_printer_set,
4608 default_tagless_printer_set): Update.
4609 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
4610 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
4611 code_props members.
4612 (symbol_print): Use SYMBOL_CODE_PRINT.
4613
4614 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
4615
4616 Use the new code_props interface for rule actions.
4617 * src/symlist.h (symbol_list): Replace action, action_location, and
4618 used members with a code_props action_props member.
4619 * src/reader.c (symbol_should_be_used, grammar_rule_check,
4620 grammar_midrule_action, grammar_current_rule_merge_set,
4621 grammar_current_rule_symbol_append, packgram): Update.
4622 * src/scan-code.h (translate_rule_action): Remove, no longer used.
4623 * src/scan-code.l (handle_action_dollar): Update.
4624 (translate_rule_action): Remove, no longer used.
4625 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
4626
4627 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
4628
4629 Use the new code_props interface in parse-gram.y.
4630 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
4631 Update all uses of translate_* functions to use the new code_props
4632 interface and to use gram_scanner_last_string_free and
4633 code_scanner_last_string_free where possible.
4634 (grammar_declaration): symbol_list_destructor_set and
4635 symbol_list_printer_set now perform the translation, so don't do it
4636 here. Use gram_scanner_last_string_free where possible.
4637 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
4638 translate_code): Remove, no longer used.
4639 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
4640 symbol_list_printer_set): Perform code translation here rather than
4641 depending on the caller to do so.
4642
4643 * src/symlist.h (struct symbol_list): Correct some documentation typos.
4644 * src/scan-gram.h (gram_last_string): Remove declaration.
4645 * src/scan-gram.l (last_string): Declare it static.
4646
4647 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
4648
4649 Encapsulate code properties and related functionality for the various
4650 destructors, printers, and actions into a code_props structure and
4651 interface. This patch merely implements code_props in scan-code.h and
4652 scan-code.l. Future patches will rewrite other modules to use it.
4653 Discussed starting at
4654 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
4655 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
4656 consistently initialize const structs that have an empty location
4657 field.
4658 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
4659 to ensure consistency.
4660 * src/scan-code.h (code_props): New structure.
4661 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
4662 function, macro, and const global variable for initializing a
4663 code_props with no code.
4664 (code_props_plain_init, code_props_symbol_action_init,
4665 code_props_rule_action_init, code_props_translate_code): The rest of
4666 the new code_props functional interface. Among other things, the init
4667 functions set the code_props kind field so that
4668 code_props_translate_code will know whether to behave like
4669 translate_symbol_action, translate_rule_action, or translate_code.
4670 These old translate functions must remain until all other modules are
4671 updated to use the new code_props interface.
4672 (code_scanner_last_string_free): New function similar to
4673 gram_scanner_last_string_free.
4674 (code_scanner_free): Add documentation.
4675 * src/scan-code.l: Implement the new interface.
4676 (code_lex): Make it static, add a code_props* argument, and remove the
4677 rule argument.
4678 (last_string): New static global similar to the one in scan-gram.l.
4679 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
4680 instead of rule.
4681 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
4682 code_props since Bison may one day use this information for destructors
4683 and printers.
4684 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
4685 (handle_action_dollar): Use symbol_list_n_get and set used flag
4686 directly since symbol_list_n_used_set is removed.
4687 (translate_action): Add a code_props* argument and remove the rule,
4688 action, and location arguments. Pass the code_props* on to code_lex.
4689 (translate_rule_action, translate_symbol_action, translate_code):
4690 Rewrite as wrappers around the new code_props interface.
4691 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
4692 it would eventually need to break the encapsulation of code_props.
4693
4694 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
4695
4696 * etc/.cvsignore: New.
4697
4698 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
4699
4700 Add maintainer-push-check to run maintainer-check using push parsing in
4701 place of pull parsing where available.
4702 * Makefile.am (maintainer-push-check): New.
4703 * data/bison.m4 (b4_use_push_for_pull_if): New.
4704 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
4705 appropriately based on their existing values.
4706 (yypush_parse): Don't print push-parser-specific diagnostics if push
4707 parsing is being used in place of pull parsing.
4708 * data/yacc.c: If push parsing should replace pull parsing, redirect to
4709 push.c.
4710 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
4711 variable, and insert b4_use_push_for_pull_flag into muscles.
4712 * tests/Makefile.am (maintainer-push-check): New.
4713
4714 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
4715
4716 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
4717 (whether successful or failed) so that yypush_parse can be invoked
4718 again to start a new parse using the same yypstate.
4719 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
4720 check multiple yypull_parse invocations on the same yypstate. For pull
4721 mode, extend to check multiple yyparse invocations.
4722 (Exploding the Stack Size with Alloca): Extend to try with
4723 %push-pull-parser.
4724 (Exploding the Stack Size with Malloc): Likewise.
4725
4726 * tests/calc.at (Simple LALR Calculator): Don't specify
4727 %skeleton "push.c" since %push-pull-parser implies that now.
4728 * tests/headers.at (export YYLTYPE): Don't check for the push
4729 declarations. Otherwise, this test case can't be used to see if push
4730 mode can truly emulate pull mode.
4731 * tests/input.at (Torturing the Scanner): Likewise.
4732 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
4733 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
4734 AT_YACC_IF, which now includes the case of push mode since %skeleton
4735 need not be used for push mode. This will be more intuitive once
4736 push.c is renamed to yacc.c.
4737
4738 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
4739
4740 For push mode, convert yyparse from a macro to a function, invoke yylex
4741 instead of passing a yylexp argument to yypull_parse, and don't
4742 generate yypull_parse or yyparse unless %push-pull-parser is declared.
4743 Discussed starting at
4744 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
4745 * data/bison.m4 (b4_pull_if): New.
4746 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
4747 * data/push.c: Improve M4 quoting a little.
4748 (b4_generate_macro_args, b4_parenthesize): Remove.
4749 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
4750 any time a pull parser is requested.
4751 Don't #define this as a wrapper around yypull_parse. Instead, when
4752 both push and pull are requested, make it a function that does that
4753 same thing.
4754 (yypull_parse): If there's a b4_prefix, #define this to
4755 b4_prefix[pull_parse] when both push and pull are requested.
4756 Don't define this as a function unless both push and pull are
4757 requested.
4758 Remove the yylexp argument and hard-code yylex invocation instead.
4759 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
4760 %push-parser.
4761 * src/getargs.c (pull_parser): New global initialized to true.
4762 * getargs.h (pull_parser): extern it.
4763 * src/output.c (prepare): Insert pull_flag muscle.
4764 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
4765 (prologue_declaration): Set both push_parser and pull_parser = true for
4766 %push-pull-parser. Set push_parser = true and pull_parser = false for
4767 %push-parser.
4768 * src/scan-gram.l: Don't accept %push_parser as an alternative to
4769 %push-parser since there's no backward-compatibility concern here.
4770 Scan %push-pull-parser.
4771 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
4772 instead of %push-parser.
4773 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
4774 prototype it in the module that calls yyparse.
4775 * tests/input.at (Torturing the Scanner): Likewise.
4776 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
4777
4778 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
4779
4780 Update etc/bench.pl. Optimize push mode a little (the yyn change
4781 deserves most of the credit).
4782 * Makefile.am (SUBDIRS): Add etc subdirectory.
4783 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
4784 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
4785 yytoken, yyval, and yyloc declarations to...
4786 (yyparse or yypush_parse): ... here to improve performance. For
4787 yypush_parse invocations after the first, be sure to assign yyn its old
4788 value again.
4789 (yypstate_new): Don't bother initializing the yyresult field since the
4790 initial value isn't used.
4791 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
4792 remove the #define that, in push mode, set it to yyps->NAME.
4793 * etc/Makefile.am: New.
4794 * etc/bench.pl: Remove and build it instead from...
4795 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
4796 "tests/bison" from the build directory by default rather than just
4797 invoking "bison" from $PATH.
4798 (calc_grammar): Update push parser code: don't declare yylval globally,
4799 don't define yyparse_wrapper, and don't #define yyparse.
4800 (bench_grammar): Update to check all working combinations of yacc.c,
4801 push.c, impure, pure, pull, and push.
4802
4803 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4804
4805 For push mode, add pull wrappers around yypush_parse.
4806 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
4807 (yypull_parse): New function wrapping yypush_parse.
4808 (yyparse): New #define wrapping yypull_parse.
4809 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
4810 is declared.
4811 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
4812 prototype yylex in the module that calls yyparse, and don't prototype
4813 yyparse there. Otherwise, the yyparse expansion won't compile.
4814 * tests/input.at (Torturing the Scanner): Likewise.
4815
4816 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4817
4818 Enable push parsers to operate in impure mode. Thus, %push-parser no
4819 longer implies %pure-parser. The point of this change is to move
4820 towards being able to test the push parser code by running the entire
4821 test suite as if %push-parser had been declared.
4822 * data/push.c (yypush_parse): For impure mode, remove the
4823 yypushed_char, yypushed_val, and yypushed_loc arguments.
4824 Instead, declare these as local variables initialized to the global
4825 yychar, yylval, and yylloc.
4826 For the first yypush_parse invocation only, restore the initial values
4827 of these global variables when it's time to read a token since they
4828 have been overwritten.
4829 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
4830 %push-parser.
4831 * tests/calc.at (Simple LALR(1) Calculator): Always declare
4832 %pure-parser along with %push-parser since this test case was designed
4833 for pure push parsers.
4834 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
4835 (AT_YACC_OR_PUSH_IF): New.
4836 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
4837 add a note that it's still wrong for some cases (as it has been for a
4838 while).
4839 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
4840 %push-parser no longer implies %pure-parser.
4841
4842 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4843
4844 Remove some unnecessary differences between the pull parser code and
4845 the push parser code. This patch enables yynerrs in push mode.
4846 * data/push.c: Reformat M4 a little.
4847 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
4848 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
4849 because push mode is on. Instead, if pure mode is on, move yynerrs
4850 to...
4851 (b4_declare_parser_state_variables): ... here.
4852 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
4853 to yyps->NAME so it can be used in yypush_parse.
4854 (yypush_parse): Don't omit uses of yynerrs in push mode.
4855
4856 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4857
4858 Fix bug such that the first pushed token's value and location are
4859 sometimes overwritten (sometimes by %initial-action) before being used.
4860 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
4861 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
4862 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
4863 more closely mimic the pull parser logic.
4864 Don't copy the pushed token to yychar, yylval, and yylloc until it's
4865 time to read a token, which is after any initialization of yylval and
4866 yylloc.
4867 (gottoken): Rename label to...
4868 (yyread_pushed_token): ... for clarity and to avoid infringing on the
4869 user namespace.
4870
4871 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4872
4873 Rearrange initialization of the parser state variables so that the
4874 skeleton doesn't have to have a copy for pull mode and another for push
4875 mode. This patch also fixes at least a bug such that yylloc was not
4876 initialized (with b4_location_initial_line and
4877 b4_location_initial_column) upon calling yypush_parse. However, that
4878 initialization now overwrites the first token's location;
4879 %initial-action assigning @$ already did the same thing, and both bugs
4880 will be fixed in a later patch.
4881 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
4882 (b4_declare_parser_state_variables): Remove initialization of yytoken,
4883 yyss, yyvs, yyls, and yystacksize.
4884 (yypstate_new): Remove initialization of some yypstate fields: yystate,
4885 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
4886 yylsp.
4887 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
4888 yyps->NAME so it can be used in yypush_parse.
4889 (yyparse or yypush_parse): For yypush_parse, don't print the
4890 "Starting parse" diagnostic for invocations after the first.
4891 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
4892 yypush_parse, only do it for the first invocation.
4893 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
4894 initialization to occur in yypush_parse but only on the first
4895 invocation.
4896
4897 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4898
4899 * data/push.c: Add CPP guards around push parser declarations in both
4900 the header and the code file.
4901 In the code file, move the push parser declarations to the same place
4902 they appear in the header file.
4903 Clean up the M4 some, especially the inconsistent underquoting in
4904 some b4_c_function_def and b4_c_function_decl uses.
4905
4906 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4907
4908 Encapsulate the push parser state variables into an M4 macro so the
4909 push skeleton doesn't have to list them again for pull mode's yyparse.
4910 For push mode, remove yypush_parse's local equivalents of these
4911 variables to eliminate unnecessary copying between the two sets at
4912 run-time. This patch also fixes at least a bug related to multiple
4913 %initial-action invocations in push mode.
4914 * data/push.c (b4_declare_parser_variables): Rename to...
4915 (b4_declare_scanner_communication_variables): ... this for clarity and
4916 update both uses.
4917 (b4_declare_yyparse_variables): Remove and move its contents to the one
4918 spot where it was invoked.
4919 (b4_declare_parser_state_variables): New macro containing the parser
4920 state variables required by push mode.
4921 (struct yypstate): Replace all fields but yynew with
4922 b4_declare_parser_state_variables.
4923 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
4924 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
4925 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
4926 (yyparse or yypush_parse): For yyparse in pull mode, replace local
4927 parser state variable declarations with
4928 b4_declare_parser_state_variables.
4929 Don't initialize parser state variables when calling yypush_parse since
4930 yypstate_new already does that.
4931 Invoke the user's initial action only upon the first yypush_parse
4932 invocation.
4933 Remove all code that copies between the local parser state variables
4934 and the yypstate.
4935
4936 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4937
4938 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
4939 prevent a name collision in a future patch where these names will
4940 sometimes be #define'd.
4941 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
4942 since it no longer has the same name as the existing argument.
4943 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
4944
4945 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
4946 and Joel E. Denny <jdenny@ces.clemson.edu>
4947
4948 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
4949 that the argument is case-insensitive, and there's no `=' here.
4950 For the %skeleton entry, mention that %language is better.
4951 (Bison Options): Likewise for --language and --skeleton. Move the
4952 --skeleton entry so that the `Tuning the parser' section is sorted
4953 alphabetically on long options.
4954 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
4955 %language directive in detail here; cross-reference the %language
4956 documentation instead.
4957 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
4958 `%require "2.3b"' so that the example is always up-to-date.
4959 (Table of Symbols): Add entries for %language and %skeleton.
4960 * examples/extexi (normalize): Instead of replacing every %require
4961 argument with the current Bison version, just substitute for
4962 `@value{VERSION}'. This guarantees that we're testing what actually
4963 appears in the documentation.
4964 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
4965 rather than `@VERSION@'.
4966
4967 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
4968
4969 * NEWS: Reword the %language news a bit, and put it earlier.
4970
4971 * src/getargs.c (skeleton_arg): Last arg is now location const *.
4972 Rewrite to simplify the logic.
4973 (language_argmatch): Likewise.
4974 (program_name): We now own this var.
4975 * src/getargs.h (struct bison_language): Use char[] rather than
4976 const char *.
4977
4978 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
4979 Java is supported.
4980 * src/complain.c (program_name): Remove decl; no longer needed.
4981 * src/main.c (program_name): Remove; now belongs to getargs.
4982
4983 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
4984
4985 * NEWS: Document %language.
4986
4987 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
4988
4989 * data/c-skel.m4, data/c++-skel.m4: New files.
4990 * data/glr.c: Complain on push parsers.
4991
4992 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
4993 over %skeleton.
4994 (Decl Summary): Document %language and %skeleton.
4995 (Command line): Document -L.
4996
4997 * examples/extexi: Rewrite %require directive.
4998 * examples/calc++/Makefile.am: Pass VERSION to extexi.
4999
5000 * src/files.c (compute_exts_from_gc): Look in language structure
5001 for .y extension.
5002 (compute_file_name_parts): Check whether .tab should be added.
5003 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
5004 (language, skeleton_arg, language_argmatch): New.
5005 (long_options): Add --language.
5006 (getargs): Use skeleton_arg, add -L/--language.
5007 * src/getargs.h: Include location.h.
5008 (struct bison_language, language, skeleton_arg, language_argmatch): New.
5009 * src/output.c (prepare): Pick default skeleton from struct language.
5010 Don't dispatch C skeletons here.
5011 * src/parse-gram.y (PERCENT_LANGUAGE): New.
5012 (prologue_declaration): Add "%language" rule, use skeleton_arg.
5013 * src/scan-gram.l ("%language"): New rule.
5014
5015 * tests/calc.at: Test %skeleton and %language.
5016 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
5017 (AT_GLR_IF): Look for %skeleton "glr.cc".
5018 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
5019 (AT_YACC_IF): Reject %language.
5020
5021 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
5022
5023 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
5024 since it wasn't used; only the typedef name 'semantic_type' is needed.
5025 Also, omit trailing white space.
5026
5027 * bootstrap: Sync from coreutils.
5028 (gnulib_extra_files): Add build-aux/announce.gen.
5029 (slurp): Adjust .gitignore files like .cvsignore files.
5030 * build-aux/announce-gen: Remove from CVS, since bootstrap
5031 now creates this.
5032
5033 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
5034
5035 Make %push-parser imply %pure-parser. This fixes several bugs; see
5036 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
5037 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
5038 pure_parser = true.
5039 * data/push.c: Don't bother testing b4_push_if when deciding whether
5040 to expand b4_declare_parser_variables globally.
5041 (yypush_parse): Likewise in here.
5042
5043 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
5044 (yy_reduce_print): Reformat M4 for readability.
5045
5046 2006-12-15 Bob Rossi <bob@brasko.net>
5047 and Joel Denny <jdenny@ces.clemson.edu>
5048
5049 * data/push.c (yypstate): Add typedef, and update all uses of
5050 struct yypstate to just yypstate.
5051 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
5052
5053 2006-12-14 Bob Rossi <bob@brasko.net>
5054
5055 * data/push.c (yypush_parse): Declare prototype regardless of
5056 %locations option.
5057
5058 2006-12-14 Bob Rossi <bob@brasko.net>
5059
5060 * data/push.c (yyparse): Remove the prototype and the #define when in
5061 push-parser mode.
5062
5063 2006-12-13 Bob Rossi <bob@brasko.net>
5064
5065 * data/push.c (yypstate_init): Rename to...
5066 (yypstate_new): ... this and use b4_c_function_def.
5067 (yypstate_delete): New.
5068 (yypush_parse): Change parameters yynval and yynlloc to be const.
5069 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
5070 yypstate_delete functions.
5071
5072 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
5073
5074 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
5075 strange test case titles. Reported by Bob Rossi.
5076
5077 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
5078
5079 * TODO: Add pointer to Sylvain Schmitz's work on static detection
5080 of potential ambiguities in GLR grammers.
5081
5082 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
5083
5084 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
5085 `bison ', use m4_index instead of m4_substr since chopping up a string
5086 containing M4-special characters causes problems here.
5087
5088 Fix a couple of bugs related to special characters in user-specified
5089 file names, and make it easier for skeletons to compute output file
5090 names with the same file name prefix as Bison-computed output file
5091 names.
5092 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
5093 b4_parser_file_name and b4_spec_defines_file instead of
5094 @output_parser_name@ and @output_header_name@, which are now redundant.
5095 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
5096 b4_parser_file_name, b4_spec_defines_file, and the new
5097 @basename(FILENAME@) instead of @output_parser_name@ and
5098 @output_header_name@, which inappropriately escaped the file names as
5099 C string literals.
5100 * src/files.c (all_but_ext): Remove static qualifier.
5101 (compute_output_file_names): Move `free (all_but_ext)' to...
5102 (output_file_names_free): ... here since all_but_ext is needed later.
5103 * src/files.h (all_but_ext): Extern.
5104 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
5105 exactly what MUSCLE_INSERT_STRING used to do.
5106 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
5107 characters are escaped properly.
5108 * src/output.c (prepare): Define muscle file_name_all_but_ext as
5109 all_but_ext.
5110 For pkgdatadir muscle, maintain previous functionality by using
5111 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
5112 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
5113 digraphs would never be expanded. Hopefully no one has M4-special
5114 characters in his Bison installation path.
5115 * src/scan-skel.l: Don't parse @output_header_name@ and
5116 @output_parser_name@ anymore since they're now redundant.
5117 In @output, use decode_at_digraphs.
5118 Parse a new @basename command that invokes last_component.
5119 (decode_at_digraphs): New.
5120 (BASE_QPUTS): Remove unused.
5121 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
5122 (Output file name): New tests.
5123
5124 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
5125
5126 Warn about output files that are generated by the skeletons and that
5127 conflict with other output files.
5128 * data/glr.c: Don't generate the header file here when glr.cc does.
5129 * src/files.c (file_names, file_names_count): New static globals.
5130 (compute_output_file_names): Invoke output_file_name_check for files
5131 not generated by the skeletons and remove existing checks.
5132 (output_file_name_check): New function that warns about conflicting
5133 output file names.
5134 (output_file_names_free): Free file_names.
5135 * src/files.h (output_file_name_check): Declare.
5136 * src/scan-skel.l: Invoke output_file_name_check for files generated by
5137 the skeletons.
5138 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
5139 (Conflicting output files): New tests.
5140
5141 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
5142
5143 * doc/bison.texinfo: Fix a couple of typos.
5144
5145 2006-12-08 Bob Rossi <bob@brasko.net>
5146
5147 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
5148 Rename to...
5149 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
5150 update all uses.
5151 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
5152 (yypush_parse): Rename yypvars argument to yyps and remove redundant
5153 local pv.
5154 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
5155 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
5156
5157 2006-12-07 Bob Rossi <bob@brasko.net>
5158 and Joel Denny <jdenny@ces.clemson.edu>
5159
5160 * data/push.c (yypvarsinit): Change return type from void* to struct
5161 yypvars*. No longer cast to void* on return.
5162 (struct yypvars): Remove yylen since it need not be remembered between
5163 yypushparse invocations.
5164 (yypushparse): Don't copy between yylen and pv->yylen.
5165
5166 2006-12-05 Bob Rossi <bob@brasko.net>
5167
5168 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
5169 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
5170 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
5171 (struct yypvars): Remove b4_declare_parser_variables.
5172 (yypvarsinit): Remove init code for removed variables.
5173 (global scope): Do not declare b4_declare_parser_variables if
5174 push or pure mode.
5175 (yypushparse): Add b4_declare_parser_variables.
5176 Init new local variables, and remove init code for removed
5177 yypvars variables.
5178 (yyparse): Delete.
5179 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
5180 and yyparse for other modes.
5181 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
5182 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
5183 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
5184 (AT_PURE_LEX_IF): True if pure or push parser.
5185
5186 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
5187
5188 Document Yacc prologue alternatives and default %destructor's and
5189 %printer's as experimental. Don't mention Java yet. Discussed at
5190 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
5191 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
5192 (2.3a): Annotate this entry to say the old forms of these features were
5193 also experimental.
5194 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
5195 Table of Symbols): Say they're experimental. Comment out any mention
5196 of Java (we'll want this back eventually).
5197
5198 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
5199
5200 Support a file name argument to %defines. Deprecate `=' in
5201 %file-prefix, %name-prefix, and %output. Discussed at
5202 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
5203 * NEWS (2.3a+): Mention.
5204 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
5205 form of %defines, and remove `=' from entries for %file-prefix,
5206 %name-prefix, and %output.
5207 * src/parse-gram.y (prologue_declaration): Implement.
5208 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
5209 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
5210 all but one occurrence of %name-prefix.
5211 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
5212 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
5213 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
5214 occurrence of each of %file-prefix and %output. Add check for %defines
5215 with argument.
5216 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
5217 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
5218 Remove the `=' from %output.
5219
5220 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
5221
5222 Don't escape $ in test case titles since Autoconf 2.61 now does that
5223 correctly.
5224 * tests/actions.at (Default %printer and %destructor are not for error
5225 or $undefined): Here.
5226 (Default %printer and %destructor are not for $accept): Here.
5227 * tests/input.at (Invalid $n and @n): Here.
5228
5229 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
5230
5231 Rename <!> to <>. Discussed starting at
5232 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
5233 * NEWS (2.3a+): Update.
5234 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
5235 Update.
5236 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
5237 * src/scan-gram.l (INITIAL): Implement.
5238 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
5239 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
5240 comment.
5241 * tests/actions.at (Default tagless %printer and %destructor,
5242 Default tagged and per-type %printer and %destructor,
5243 Default %printer and %destructor are not for error or $undefined,
5244 Default %printer and %destructor are not for $accept,
5245 Default %printer and %destructor for mid-rule values): Update.
5246 * tests/input.at (Default %printer and %destructor redeclared,
5247 Unused values with default %destructor): Update.
5248
5249 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
5250
5251 Don't let %prec take a nonterminal.
5252 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
5253 token.
5254 * tests/input.at (%prec takes a token): New test checking that %prec
5255 won't take a nonterminal.
5256
5257 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5258
5259 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
5260 it was double-quoted.
5261 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
5262 grammar is maintained with Bison's highest standards.
5263 * src/getargs.c: Fix some typos in Doxygen comments.
5264
5265 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5266
5267 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
5268 later. Reported by Paul Eggert in
5269 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
5270 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
5271 * src/scan-code.l (translate_action): Don't bother invoking
5272 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
5273 (code_scanner_free): Instead of invoking
5274 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
5275 which frees more.
5276 * src/scan-gram.l (gram_scanner_free): Likewise.
5277 * src/scan-skel.l (scan_skel): Likewise.
5278
5279 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
5280
5281 * src/files.c (tr): Change return type to void.
5282 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
5283 has been called previously for the same key.
5284 (muscle_find): Return storage instead of value so that
5285 --enable-gcc-warnings doesn't produce warnings that the return discards
5286 const. aver that the value and storage are the same since storage
5287 could potentially be NULL when value is not.
5288 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
5289 same as 0.
5290
5291 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
5292
5293 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
5294 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
5295 us a slightly cleaner distribution, and also works.
5296 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
5297 gnulib changes.
5298
5299 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
5300 and Paul Eggert <eggert@cs.ucla.edu>
5301
5302 Don't let Bison leak memory except when it complains.
5303 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
5304 (spec_defines_file, dir_prefix): Now char *, not const char *,
5305 since they are freed.
5306 * src/files.c: Likewise.
5307 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
5308 Likewise.
5309 (tr): Now operates in-place. All uses changed.
5310 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
5311 values.
5312 (compute_file_name_parts, compute_output_file_names): Don't store
5313 read-only data in variables that will be freed.
5314 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
5315 src_extension, and header_extension.
5316 (output_file_names_free): New public function to free
5317 spec_verbose_file, spec_graph_file, spec_defines_file,
5318 parser_file_name, and dir_prefix.
5319 * src/getargs.c (getargs): Don't store read-only data in variables that
5320 will be freed.
5321 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
5322 (which previously existed but was unused), and quotearg_free.
5323 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
5324 * src/muscle_tab.c: Likewise.
5325 (muscle_entry): Make the value char const *,
5326 and add a new storage member that is char * and can be freed.
5327 (muscle_entry_free): New private function.
5328 (muscle_init): Use it instead of free.
5329 (muscle_insert, muscle_grow): Update and use new storage member.
5330 (muscle_code_grow): Free the string passed to muscle_grow
5331 since it's not needed anymore.
5332 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
5333 add a new `char *code' member.
5334 ("{...}"): Declare semantic type as code.
5335 * src/scan-code.h (translate_rule_action):
5336 (translate_symbol_action, translate_code, translate_action): Return
5337 `char const *' rather than `char *' since external code should not free
5338 these strings.
5339 * src/scan-code.l: Likewise.
5340 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
5341 which is "{...}" in the parser.
5342 * tests/Makefile.am (maintainer-check-valgrind): Set
5343 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
5344 Valgrind.
5345 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
5346 complain.
5347 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
5348 expecting a non-zero exit status sets --leak-check=summary and
5349 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
5350 this case, and we don't want to hear about it.
5351
5352 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
5353
5354 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
5355 instead of from the template, to simplify configuration a bit.
5356 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
5357 and m4/wint_t.m4, as they are needed with the latest gnulib.
5358
5359 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5360
5361 Disable unset/unused mid-rule value warnings by default, and recognize
5362 --warnings=midrule-values to enable them. Discussed starting at
5363 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
5364 * NEWS (2.3a+): Mention.
5365 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
5366 warnings): Add entry for midrule-values subargument.
5367 * src/reader.c (symbol_should_be_used): Don't return true just because
5368 the value is a set/used mid-rule value unless
5369 --warnings=midrule-values was specified.
5370 * tests/input.at (Unused values, Unused values before symbol
5371 declarations): Run tests with and without --warnings=midrule-values.
5372
5373 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
5374 than LIST_FREE directly.
5375
5376 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5377
5378 Finish implementing --warnings=error, which should not be implied by
5379 --warnings=all (or by its synonyms -W and --warnings without
5380 subarguments).
5381 * src/complain.c (set_warning_issued): New function to report that
5382 warnings are being treated as errors and to record an error if so.
5383 Invoke...
5384 (warn_at, warn): ... here.
5385 * src/getargs.c (warnings_args, warnings_types): Reorder so that
5386 "error - warnings are errors" does not appear above "all - all of the
5387 above".
5388 (getargs): For -W and --warnings without subarguments, don't let
5389 FLAGS_ARGMATCH set warnings_error in warnings_flag.
5390 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
5391
5392 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5393
5394 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
5395 empty subargument list. For example: `bison --warnings= parser.y'.
5396
5397 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5398
5399 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
5400 the parser header file so that gcc doesn't warn.
5401
5402 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5403
5404 Split the default %destructor/%printer into two kinds: <*> and <!>.
5405 Discussed starting at
5406 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
5407 * NEWS (2.3a+): Mention.
5408 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
5409 previous change today related to mid-rules.
5410 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
5411 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
5412 (TYPE_TAG_ANY): Add as <*>.
5413 (TYPE_TAG_NONE): Add as <!>.
5414 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
5415 for <*> and <!>.
5416 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
5417 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
5418 * src/symlist.c (symbol_list_default_new): Split into tagged and
5419 tagless versions.
5420 (symbol_list_destructor_set, symbol_list_printer_set): Split
5421 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
5422 SYMLIST_DEFAULT_TAGLESS.
5423 * src/symlist.h: Update symbol_list_default*_new prototypes.
5424 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
5425 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
5426 * src/symtab.c (default_destructor, default_destructor_location,
5427 default_printer, default_printer_location): Split each into tagged and
5428 tagless versions.
5429 (symbol_destructor_get, symbol_destructor_location_get,
5430 symbol_printer_get, symbol_printer_location_get): Implement tagged
5431 default and tagless default cases.
5432 (default_destructor_set, default_printer_set): Split each into tagged
5433 and tagless versions.
5434 * src/symtab.h: Update prototypes.
5435 * tests/actions.at (Default %printer and %destructor): Rename to...
5436 (Default tagless %printer and %destructor): ... this, and extend.
5437 (Per-type %printer and %destructor): Rename to...
5438 (Default tagged and per-type %printer and %destructor): ... this, and
5439 extend.
5440 (Default %printer and %destructor for user-defined end token): Extend.
5441 (Default %printer and %destructor are not for error or $undefined):
5442 Update.
5443 (Default %printer and %destructor are not for $accept): Update.
5444 (Default %printer and %destructor for mid-rule values): Extend.
5445 * tests/input.at (Default %printer and %destructor redeclared): Extend.
5446 (Unused values with default %destructor): Extend.
5447
5448 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5449
5450 Don't apply the default %destructor/%printer to an unreferenced midrule
5451 value. Mentioned at
5452 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
5453 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
5454 like $@n instead of just @n so that the default %destructor/%printer
5455 logic doesn't see them as user-defined symbols.
5456 (symbol_is_dummy): Check for both forms of the name.
5457 * src/reader.c (packgram): Remove the `$' from each midrule symbol
5458 name for which the midrule value is referenced in any action.
5459 * tests/actions.at (Default %printer and %destructor for mid-rule
5460 values): New test.
5461 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
5462 for change to dummy symbol names.
5463
5464 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
5465
5466 Warn about unset midrule $$ if the corresponding $n is used.
5467 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
5468 $n usage.
5469 (packgram): Before invoking grammar_rule_check on any rule, make sure
5470 all actions have already been scanned in order to set `used' flags.
5471 Otherwise, checking that a midrule's $$ is set will not always work
5472 properly because the midrule check must forward-reference the midrule's
5473 parent rule.
5474 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
5475 warning.
5476
5477 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
5478
5479 More improvements to the documentation of the prologue alternatives:
5480 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
5481 Bison manual.
5482 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
5483 some text to clarify the relative importance of the new directives and
5484 to show how these directives may be viewed as code labels.
5485
5486 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
5487
5488 Similar to the recently removed %before-header, add %code-top as the
5489 alternative to the pre-prologue. Mentioned at
5490 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
5491 Also, let the prologue alternatives appear in the grammar section.
5492 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
5493 (prologue_declaration): Move the existing prologue alternatives to...
5494 (grammar_declaration): ... here and add %code-top.
5495 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
5496
5497 Clean up and extend documentation for the prologue alternatives.
5498 * NEWS (2.3a+): Describe prologue alternatives.
5499 * doc/bison.texinfo (Prologue): Move discussion of prologue
5500 alternatives to...
5501 (Prologue Alternatives): ... this new section, and extend it to discuss
5502 all 4 directives in detail.
5503 (Table of Symbols): Clean up discussion of prologue alternatives and
5504 add %code-top.
5505
5506 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
5507
5508 DJGPP specific issues.
5509
5510 * djgpp/config.bat: config.hin has been moved to lib. Adjust
5511 config.bat accordingly.
5512 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
5513 * djgpp/config.site: Likewise.
5514
5515 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
5516
5517 Replace %*-header with %provides, %requires, %code. See discussion at
5518 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
5519
5520 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
5521 (b4_user_start_header): Remove.
5522 * data/glr.c: Use new macros instead of b4_*start_header
5523 and b4_*end_header.
5524 * data/glr.cc: Likewise.
5525 * data/lalr1.cc: Likewise.
5526 * data/push.c: Likewise.
5527 * data/yacc.c: Likewise.
5528
5529 * doc/bison.texinfo: Remove %before-header, rename
5530 %{start,end,after}-header to %requires, %provides, %code.
5531
5532 * src/parse-gram.y: Likewise (also rename token names accordingly).
5533 * src/scan-gram.l: Likewise.
5534 * tests/actions.at: Likewise.
5535
5536 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
5537
5538 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
5539 Problem reported by Joel E. Denny.
5540
5541 2006-10-14 Jim Meyering <jim@meyering.net>
5542
5543 (Sync from coreutils.)
5544 Work also when the working directory (with e.g. coreutils sources)
5545 is version controlled with git, rather than CVS.
5546 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
5547 rather than CVS.
5548 In messages and comments, say e.g., "checked-out sources",
5549 rather than "CVS sources".
5550 (version_controlled_file): New function. Work for git as well as
5551 for CVS. Don't use grep's -q option.
5552 (slurp): Call it here, in place of CVS-specific code.
5553
5554 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
5555
5556 Fix testsuite for ./configure --enable-gcc-warnings:
5557 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
5558 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
5559 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
5560 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
5561 * test/regression.at (Diagnostic that expects two alternatives):
5562 Likewise.
5563
5564 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
5565
5566 * bootstrap.conf (gnulib_modules): Add config-h.
5567 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
5568 worry about HAVE_CONFIG_H.
5569 * lib/abitset.c: Likewise.
5570 * lib/bitset.c: Likewise.
5571 * lib/bitset_stats.c: Likewise.
5572 * lib/bitsetv-print.c: Likewise.
5573 * lib/bitsetv.c: Likewise.
5574 * lib/ebitset.c: Likewise.
5575 * lib/get-errno.c: Likewise.
5576 * lib/lbitset.c: Likewise.
5577 * lib/subpipe.c: Likewise.
5578 * lib/timevar.c: Likewise.
5579 * lib/vbitset.c: Likewise.
5580 * lib/bitset.c: Include "bitset.h" first, to test interface.
5581 * lib/bitset_stats.c: Include "bitset_stats.h" first.
5582 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
5583 * lib/bitsetv.c: Include "bitsetv.h" first.
5584 * lib/get-errno.c: Include "get-errno.h" first.
5585 * m4/.cvsignore: Add config-h.m4.
5586 * tests/actions.at (Default %printer and %destructor for ...):
5587 Adjust expected line numbers in output to reflect removal of #if
5588 HAVE_CONFIG_H lines.
5589 * tests/glr-regression.at (Missed %merge type warnings when ...):
5590 Likewise.
5591 * tests/regression.at (Braced code in declaration in rules section):
5592 Likewise.
5593 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
5594 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
5595 Include <config.h> unconditionally.
5596
5597 * bootstrap: Sync from coreutils, as follows:
5598
5599 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
5600
5601 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
5602 variable was sometimes used without being initialized. This
5603 messed up the installation of the INSTALL file in some cases.
5604
5605 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
5606
5607 * bootstrap (usage, main program, symlink_to_gnulib): Add option
5608 --copy. Inspired by a suggestion from Bruno Haible.
5609
5610 2006-10-03 Jim Meyering <jim@meyering.net>
5611
5612 * bootstrap: Undo last change to this file, since now gnulib-tool
5613 sticks with the automake default in generating dependencies.
5614
5615 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
5616
5617 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
5618 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
5619
5620 * doc/bison.1: Add copyright notice.
5621
5622 * data/glr.c: Don't include <stdarg.h>; not used.
5623
5624 * NEWS: The -g and --graph options now output graphs in Graphviz
5625 DOT format, not VCG format.
5626 * doc/bison.1: Likewise.
5627 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
5628 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
5629 of this change in
5630 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
5631 * TODO: Remove Graphviz entry.
5632 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
5633 remove vcg.c, vcg.h, vcg_defaults.h.
5634 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
5635 * src/graphviz.c, src/graphviz.h: New files.
5636 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
5637 * src/files.h: Make comment more generic.
5638 * src/main.c (main): Likewise.
5639 * src/print_graph.h: Likewise.
5640 * src/getargs.c (usage): Make usage description more generic.
5641 * src/print_graph.c: Include graphviz.h rather than vcg.h.
5642 (static_graph, fgraph): Remove. All uses changed to pass
5643 arguments instead of sharing a static var.
5644 (print_core, print_actions, print_state, print_graph):
5645 Output graphviz format rather than VCG format.
5646 * tests/.cvsignore: Remove *.vcg; add *.dot.
5647 * tests/output.at: Expect *.dot files, not *.vcg files.
5648
5649 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
5650 accommodates the 2006-10-08 change.
5651
5652 2006-10-11 Bob Rossi <bob@brasko.net>
5653
5654 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
5655 (b4_yyssa, b4_yyerror_range): New macros.
5656 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
5657 (yypvarsinit): Remove init of removed fields.
5658 (yypushparse): Remove use of removed fields; use new macros instead.
5659
5660 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
5661
5662 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
5663 in a push parser. Reindent slightly to match yacc.c better.
5664
5665 2006-10-11 Bob Rossi <bob@brasko.net>
5666
5667 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
5668 yymsg_alloc fields.
5669 (yypvarsinit, yypushparse): Remove init of removed fields.
5670 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
5671
5672 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
5673
5674 * THANKS: Add Paolo Bonzini and Bob Rossi.
5675
5676 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
5677
5678 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
5679 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
5680 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
5681 b4_define_user_cde and uses): Remove.
5682 (b4_comment, b4_prefix, b4_sync_start): New.
5683 * data/bison.m4: New file, with most of the content removed from c.m4.
5684 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
5685 * src/output.c (output_skeleton): Pass bison.m4.
5686 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
5687 only if specified.
5688
5689 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
5690
5691 Fix test failure reported by Tom Lane in
5692 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
5693 and try to make such failures easier to catch in the future.
5694 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
5695 that's now the caller's responsibility.
5696 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
5697 Set yychar = YYEOF if it's negative.
5698 * tests/actions.at (yylex): Abort if asked to read past EOF.
5699 * tests/conflicts.at (yylex): Likewise.
5700 * tests/cxx-type.at (yylex): Likewise.
5701 * tests/glr-regression.at (yylex): Likewise.
5702 * tests/input.at (yylex): Likewise.
5703 * tests/regression.at (yylex): Likewise.
5704 * tests/torture.at (yylex): Likewise.
5705
5706 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
5707
5708 Fix problems with translating English-language diagnostics.
5709 * bootstrap: Fix bug introduced in recent bootstrap changes, with
5710 respect to bison-runtime pot generation. The YY_ stuff
5711 wasn't being captured.
5712 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
5713 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
5714 * runtime-po/POTFILES.in: Add data/push.c.
5715
5716 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
5717
5718 Merge bootstrap changes from coreutils.
5719
5720 2006-09-28 Jim Meyering <jim@meyering.net>
5721
5722 Automatically generated dependencies are important even
5723 when all of the sources in a directory come from gnulib.
5724 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
5725 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
5726
5727 2006-09-23 Jim Meyering <jim@meyering.net>
5728
5729 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
5730
5731 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5732
5733 * bootstrap: Add support for --force.
5734 (usage): New function. Describe usage less tersely.
5735 (CVS_only_file): New var.
5736
5737 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
5738
5739 * data/push.c (YYPUSH_MORE): Make it an enum instead.
5740 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
5741 Adjust white space and comments to match GNU style better.
5742
5743 2006-09-20 Bob Rossi <bob@brasko.net>
5744
5745 * data/push.c (yyresult_get): Remove function.
5746 (YYPUSH_MORE): Add #define.
5747 (yypushparse): Modify return value.
5748
5749 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5750
5751 * stamp-h.in: Remove; no longer needed.
5752 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
5753 Remove config.h, config.hin, intl (no longer created).
5754 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
5755 stamp-h1.
5756
5757 Sync bootstrap from coreutils, as follows:
5758
5759 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
5760
5761 * bootstrap (symlink_to_gnulib): New function.
5762 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
5763 to copies-of-gnulib.
5764 (cp_mark_as_generated, slurp, gnulib_files):
5765 Avoid making a copy if it's the same as the old version.
5766 (gnulib_files): Add support for this variable (used by Bison).
5767
5768 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5769
5770 * src/getargs.c (usage): Rework to use conventions similar to
5771 coreutils, to make translation a bit easier and the code a bit
5772 smaller. Problem reported by Tim Van Holder.
5773
5774 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
5775
5776 Use some of gnulib's new modules, taken from coreutils.
5777
5778 * bootstrap: Sync from coreutils, except add support for gnulib_files.
5779 * bootstrap.conf: New file.
5780 (gnulib_modules): Add configmake, inttypes, unistd.
5781 (XGETTEXT_OPTIONS): Add complain, complain_at,
5782 fatal, fatal_at, warn, warn_at, unexpected_end.
5783 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
5784 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
5785 (gl_EARLY): Add.
5786 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
5787 (gl_INIT): Add
5788 (GNULIB_AUTOCONF_SNIPPET): Remove.
5789 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
5790 the pickiest.
5791 * lib/.cvsignore: Add inttypes_.h.
5792 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
5793 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
5794 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
5795 no-longer-necessary initializations.
5796 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
5797 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
5798 use the unistd module.
5799 * src/system.h: Likewise.
5800 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
5801 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
5802 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
5803 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
5804 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
5805 * src/system.h: Include inttypes.h unconditionally, now that we
5806 use the inttypes module. Don't bother to include stdint.h, since
5807 inttypes.h now does that for us.
5808 (LOCALEDIR): Remove, now that we use the configmake module.
5809 * src/getargs.c: Include configmake.h.
5810 * src/main.c: Likewise.
5811 * src/output.c: Likewise.
5812 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
5813 not from $abs_top_builddir, since config.h moved.
5814
5815
5816 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
5817 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
5818
5819 * src/parse-gram.y (symbol_declaration): Don't put statements
5820 before declarations; it's not portable to C89.
5821 * src/scan-code.l (handle_action_at): Likewise.
5822
5823 * src/scan-code.l: Always initialize braces_level; the old code
5824 left it uninitialized and therefore had undefined behavior.
5825
5826 Don't attempt to redefine 'assert', since it runs afoul of
5827 systems where standard headers (mistakenly) include <assert.h>.
5828 Instead, define and use our own alternative, called 'aver'.
5829 * src/reader.c: Don't include assert.h, since we no longer
5830 use assert.
5831 * src/scan-code.l: Likewise.
5832 * src/system.h (assert): Remove, replacing with....
5833 (aver): New function, taking a bool arg. All uses changed.
5834 * src/tables.c (pack_vector): Ensure that aver arg is bool,
5835 not merely an integer.
5836
5837 2006-09-15 Bob Rossi <bob@brasko.net>
5838
5839 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
5840 * data/c.m4 (YYPUSH): New.
5841 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
5842 * src/getargs.c (push_parser): New var.
5843 * src/getargs.h (push_parser): New declaration.
5844 * src/output.c (prepare): Add macro insertion of `push_flag'.
5845 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
5846 (prologue_declaration): Parse %push-parser.
5847 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
5848 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
5849 list of removed lines from the traces observed.
5850 (AT_CHECK_CALC_LALR): Added push parser tests.
5851
5852 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
5853
5854 * NEWS: Version 2.3a.
5855 * configure.ac (AC_INIT): Likewise.
5856
5857 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
5858 "#define YYSTYPE int" that caused "make maintainer-check" to fail
5859 due to header ordering dependencies. I don't know why the #define
5860 was there.
5861
5862 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
5863 runtime cost when YYDEBUG is not defined, and so that some tests
5864 that used to fail now work. Problem and initial suggestion by
5865 Paolo Bonzini.
5866 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
5867 * data/glr.cc (b4_parser_class_name):
5868 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
5869 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
5870 (yydebug_) [YYDEBUG]: New member.
5871 (yycdebug_): Now defined only if YYDEBUG.
5872 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
5873 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
5874 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
5875 if YYYDEBUG.
5876 (debug_stream, set_debug_stream, debug_level, set_debug_level):
5877 Define only if YYDEBUG.
5878 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
5879 set_debug_level.
5880 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
5881 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
5882 AT_CHECK_CALC_GLR_CC that are working now.
5883
5884 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
5885
5886 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
5887 We don't need them in glr.cc, and glr.c defines them.
5888 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
5889 assumes that defining it to anything is the same as defining
5890 it to 1. Problem reported by Paolo Bonzini.
5891
5892 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
5893
5894 * data/c.m4 (b4_null, b4_case): Define.
5895 * src/output.c (prepare_symbols): Use b4_null.
5896 (user_actions_output): Use b4_case.
5897
5898 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
5899
5900 * data/glr.c (b4_shared_declarations): Put start-header first,
5901 before any #includes that we generate, so that feature-test
5902 macros work. Problem reported by Michael Deutschmann in
5903 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
5904 * data/lalr1.cc: Likewise.
5905 * doc/bison.texinfo (Prologue): Document that feature-test macros
5906 should be defined before any Bison declarations.
5907 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
5908 that depend on location.hh after, not before, Bison decls, since
5909 we now include location.hh after the first user prologue.
5910
5911 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
5912 Sander Brandenburg in
5913 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
5914 Also, fix minor white space and comment issues.
5915 (Prologue): Mention that it's better to define feature-test macros
5916 before Bison declarations. Problem reported by Michael Deutschmann.
5917
5918 * README-cvs: Fix typo: "&" should be "&&". Problem reported
5919 by Jim Meyering.
5920 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
5921 This adjusts to recent gnulib changes.
5922
5923 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
5924
5925 Finish implementation of per-type %destructor/%printer. Discussed
5926 starting at
5927 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
5928 and
5929 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
5930 * NEWS (2.3+): Add a description of this feature to the default
5931 %destructor/%printer description.
5932 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
5933 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
5934 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
5935 list node contains a semantic type.
5936 * src/symtab.c, src/symtab.h: Extend with a table that associates
5937 semantic types with their %destructor's and %printer's.
5938 (semantic_type_from_uniqstr, semantic_type_get,
5939 semantic_type_destructor_set, semantic_type_printer_set): New functions
5940 composing the public interface of that table.
5941 (symbol_destructor_get, symbol_destructor_location_get,
5942 symbol_printer_get, symbol_printer_location_get): If there's no
5943 per-symbol %destructor/%printer, look up the per-type before trying
5944 the default.
5945 * tests/actions.at (Per-type %printer and %destructor): New test case.
5946 * tests/input.at (Default %printer and %destructor redeclared):
5947 Extend to check that multiple occurrences of %symbol-default in a
5948 single %destructor/%printer declaration is an error.
5949 (Per-type %printer and %destructor redeclared, Unused values with
5950 per-type %destructor): New test cases.
5951
5952 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
5953
5954 Require default %destructor/%printer to be declared using
5955 %symbol-default instead of an empty symbol list, and start working on
5956 new per-type %destructor/%printer. Discussed at
5957 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
5958 * NEWS (2.3+): Add %symbol-default to example.
5959 * bison.texinfo (Freeing Discarded Symbols): Likewise.
5960 (Table of Symbols): Add entry for %symbol-default.
5961 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
5962 (generic_symlist, generic_symlist_item): New nonterminals for creating
5963 a list in which each item is a symbol, semantic type, or
5964 %symbol-default.
5965 (grammar_declaration): Use generic_symlist in %destructor and %printer
5966 declarations instead of symbols.1 or an empty list.
5967 (symbol_declaration, precedence_declaration, symbols.1): Update actions
5968 for changes to symbol_list.
5969 * src/reader.c: Update for changes to symbol_list.
5970 * src/scan-code.l: Likewise.
5971 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
5972 * src/symlist.c, src/symlist.h: Extend such that a list node may
5973 represent a semantic type or a %symbol-default in addition to just an
5974 ordinary symbol. Add switched functions for setting %destructor's and
5975 %printer's.
5976 * tests/actions.at, tests/input.at: Add %symbol-default to all default
5977 %destructor/%printer declarations.
5978
5979 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
5980
5981 Whether the default %destructor/%printer applies to a particular symbol
5982 isn't a question of whether the user *declares* that symbol (in %token,
5983 for example). It's a question of whether the user by any means
5984 *defines* the symbol at all (by simply using a char token, for
5985 example). $end is defined by Bison whereas any other token with token
5986 number 0 is defined by the user. The error token is always defined by
5987 Bison regardless of whether the user declares it with %token, but we
5988 may one day let the user define error as a nonterminal instead.
5989 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
5990 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
5991 the meaning of "user-defined".
5992 * tests/actions.at (Default %printer and %destructor for user-declared
5993 end token): Rename to...
5994 (Default %printer and %destructor for user-defined end token): ...
5995 this.
5996
5997 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
5998 computation of whether to apply the default, don't maintain a list of
5999 every Bison-defined symbol. Instead, just check for a first character
6000 of '$', which a user symbol cannot have, and check for the error token.
6001
6002 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
6003
6004 Don't apply the default %destructor or %printer to the error token,
6005 $undefined, or $accept. This change fits the general rule that the
6006 default %destructor and %printer are only for user-declared symbols,
6007 and it solves several difficulties that are described in the new test
6008 cases listed below.
6009 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
6010 * tests/actions.at (Default %printer and %destructor are not for error
6011 or $undefined, Default %printer and %destructor are not for $accept):
6012 New test cases.
6013
6014 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
6015
6016 Allow %start after the first rule.
6017 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
6018 when parsing the first rule.
6019 (check_and_convert_grammar): Search for it here after all grammar
6020 declarations have been parsed. Skip midrules, which have dummy LHS
6021 nonterminals.
6022 * src/symtab.c (symbol_is_dummy): New function.
6023 * src/symtab.h (symbol_is_dummy): Declare it.
6024 * tests/input.at (%start after first rule): New test.
6025
6026 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6027
6028 Redo some of the previous commit: add back the ability to use
6029 non-aliased/undeclared string literals since it might be useful to
6030 those declaring %token-table.
6031 * src/reader.c (check_and_convert_grammar): Undo changes in previous
6032 commit: don't worry about complaints from symbols_pack.
6033 * src/symtab.c (symbol_new, symbol_class_set,
6034 symbol_check_alias_consistency): Undo changes in previous commit: count
6035 each string literal as a new symbol and token, assign it a symbol
6036 number, and don't complain about non-aliased string literals.
6037 (symbols_pack): Since symbol_make_alias still does not decrement symbol
6038 and token counts but does still set aliased tokens to the same number,
6039 symbol_pack_processor now leaves empty slots in the symbols array.
6040 Remove those slots.
6041 * tests/regression.at (Undeclared string literal): Remove test case
6042 added in previous commit since non-aliased string literals are allowed
6043 again.
6044 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
6045 remove unnecessary string literal declarations.
6046 * tests/sets.at (Firsts): Likewise.
6047
6048 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6049
6050 Don't allow an undeclared string literal, but allow a string literal to
6051 be used before its declaration.
6052 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
6053 symbols_pack complained.
6054 * src/symtab.c (symbol_new): Don't count a string literal as a new
6055 symbol.
6056 (symbol_class_set): Don't count a string literal as a new token, and
6057 don't assign it a symbol number since symbol_make_alias does that.
6058 (symbol_make_alias): It's not necessary to decrement the symbol and
6059 token counts anymore. Don't assume that an alias declaration occurs
6060 before any uses of the identifier or string, and thus don't assert that
6061 one of them has the highest symbol number so far.
6062 (symbol_check_alias_consistency): Complain if there's a string literal
6063 that wasn't declared as an alias.
6064 (symbols_pack): Bail if symbol_check_alias_consistency failed since
6065 symbol_pack asserts that every token has been assigned a symbol number
6066 although undeclared string literals have not.
6067 * tests/regression.at (String alias declared after use, Undeclared
6068 string literal): New test cases.
6069 (Characters Escapes, Web2c Actions): Declare string literals as
6070 aliases.
6071 * tests/sets.at (Firsts): Likewise.
6072
6073 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
6074
6075 In the grammar scanner, STRING_FINISH unclosed constructs and return
6076 them to the parser in order to improve error messages.
6077 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
6078 SC_BRACED_CODE, SC_PROLOGUE): Implement.
6079 * tests/input.at (Unclosed constructs): New test case.
6080 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
6081 seen.
6082
6083 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
6084 unused global.
6085
6086 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
6087
6088 Handle string aliases for character tokens correctly.
6089 * src/symtab.c (symbol_user_token_number_set): If the token has an
6090 alias, check and set its alias's user token number instead of its own,
6091 which is set to indicate the alias. Previously, every occurrence of
6092 the character token in the grammar overwrote that alias indicator with
6093 the character code.
6094 * tests/input.at (String aliases for character tokens): New test.
6095
6096 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
6097
6098 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
6099
6100 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
6101
6102 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
6103 to prevent failures when building on older platforms.
6104 Check for autopoint failure.
6105 Set XGETTEXT_OPTIONS to values that check for C format strings,
6106 so that translators are warned about them (this also helps
6107 prevent core dumps).
6108
6109 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
6110 function, since it simplifies our code a bit.
6111
6112 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
6113 rather than -W, so we don't get bogus warnings about sign comparisons.
6114 Add -Wpointer-arith, since that warning is useful (it reports code
6115 that does not conform to C89 and that some compilers reject).
6116 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
6117 since it's no longer needed.
6118
6119 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
6120
6121 Clean up scanners a bit.
6122 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
6123 definitions so gcc won't warn when obstack_for_string is unused.
6124 * src/scan-code.l: config.h and system.h are already #include'd by
6125 scan-code-c.c, so get rid of them here.
6126 * src/scan-gram.l: Likewise.
6127 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
6128 definitions rather than duplicating the rest of it.
6129 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
6130
6131 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
6132
6133 Suppress signed/unsigned comparison warnings for yycheck.
6134 * data/c.m4 (b4_safest_int_type): New macro.
6135 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
6136 a signed int type, cast it to b4_safest_int_type first.
6137 * data/yacc.c: Likewise.
6138 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
6139 also overwritten.
6140
6141 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
6142
6143 * doc/bison.texinfo: Fix some typos.
6144
6145 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
6146
6147 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
6148 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
6149
6150 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
6151 the latest gnulib does this a different way.
6152 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
6153 translation was patched, so stop omitting it.
6154
6155 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6156
6157 Enable declaration of default %printer/%destructor. Make the parser
6158 use these for all user-declared grammar symbols for which the user does
6159 not declare a specific %printer/%destructor. Thus, the parser uses it
6160 for token 0 if the user declares it but not if Bison generates it as
6161 $end. Discussed starting at
6162 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
6163 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
6164 and
6165 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
6166 * NEWS (2.3+): Mention.
6167 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
6168 declare a %destructor for a mid-rule's semantic value. It's just
6169 impossible to declare one specific to it.
6170 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
6171 code. Describe default %destructor form.
6172 * src/parse-gram.y (grammar_declaration): Parse default
6173 %printer/%destructor declarations.
6174 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
6175 and symbol_destructor_location_get rather than accessing the destructor
6176 and destructor_location members of struct symbol.
6177 (symbol_printers_output): Likewise but for %printer's.
6178 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
6179 again.
6180 * src/symtab.c (default_destructor, default_destructor_location,
6181 default_printer, default_printer_location): New static global
6182 variables to record the default %destructor and %printer.
6183 (symbol_destructor_get, symbol_destructor_location_get,
6184 symbol_printer_get, symbol_printer_location_get): New functions to
6185 compute the appropriate %destructor and %printer for a symbol.
6186 (default_destructor_set, default_printer_set): New functions to set the
6187 default %destructor and %printer.
6188 * src/symtab.h: Prototype all those new functions.
6189 * tests/actions.at (Default %printer and %destructor): New test to
6190 check that the right %printer and %destructor are called, that they're
6191 not called for $end, and that $$ and @$ work correctly.
6192 (Default %printer and %destructor for user-declared end token): New
6193 test to check that the default %printer and %destructor are called for
6194 a user-declared end token.
6195 * tests/input.at (Default %printer and %destructor redeclared, Unused
6196 values with default %destructor): New tests to check related grammar
6197 warnings and errors.
6198
6199 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6200
6201 Clean up handling of %destructor for the end token (token 0).
6202 Discussed starting at
6203 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
6204 and
6205 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
6206
6207 Make the skeletons consistent in how they pop the end token and invoke
6208 its %destructor.
6209 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
6210 state, which has token number 0, since this would invoke the
6211 %destructor for the end token.
6212 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
6213 until after shifting the end token, or else it won't be popped.
6214 * data/yacc.c (yyparse): Likewise.
6215
6216 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
6217 it's the end token. Upon termination, destroy an unshifted lookahead
6218 even when it's the end token.
6219 * data/lalr1.cc (yy::parser::parse): Likewise.
6220 * data/yacc.c (yyparse): Likewise.
6221
6222 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
6223 value warnings for the end token when the user gives the end token a
6224 %destructor.
6225
6226 * tests/actions.at (Printers and Destructors): Test all the above.
6227
6228 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
6229
6230 Update to latest gnulib and gettext versions.
6231 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
6232 Add fopen-safer.
6233 (gnulib_files): Add m4/warning.m4. Don't worry about files
6234 overwritten by autopoint.
6235 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
6236 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
6237 rejects them.
6238 Don't use autoreconf; instead, invoke autopoint etc. by hand,
6239 so that we can remove the intl files at a better time.
6240 (intl_files_to_remove): Remove aclocal.m4, since it gets
6241 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
6242 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
6243 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
6244 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
6245 Remove datarootdir hack; no longer needed.
6246 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
6247 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
6248 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
6249 strdup.h.
6250 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
6251 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
6252
6253 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
6254
6255 * bootstrap: Adjust to today's change to gnulib-tool by invoking
6256 it with --assume-autoconf='latest-stable'.
6257
6258 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
6259
6260 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
6261 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
6262 YYSTYPE' and `{'.
6263 * src/muscle_tab.h (muscle_grow): Replace the header comments with
6264 those from muscle_tab.c since the old ones are misleading.
6265
6266 2006-07-13 Akim Demaille <akim@epita.fr>
6267
6268 Support %define "KEY" {VALUE}.
6269 * src/scan-code.h, src/scan-code.l (translate_action)
6270 (translate_rule_action, translate_symbol_action, translate_code):
6271 Return char *, not const char *.
6272 * src/parse-gram.y (declaration): Rename as...
6273 (prologue_declaration): this.
6274 (string_content): Remove this nonterminal, use STRING.
6275 (braceless, content, content.opt): New nonterminal.
6276 Use them.
6277 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
6278 as value.
6279 * src/scan-gram.l (getargs.h): Don't include it.
6280
6281 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
6282
6283 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
6284 rather than a for-loop that declares a local bool variable. This
6285 should work around a compatibility problem with a Cray x1e C++
6286 compiler reported by Hung Nguyen in
6287 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
6288 The for-loop was introduced in the 2004-11-17 change but I don't
6289 know why it was needed.
6290
6291 2006-07-12 Akim Demaille <akim@epita.fr>
6292
6293 * data/c.m4: Comment changes.
6294
6295 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
6296
6297 * src/complain.c (error_message, ERROR_MESSAGE): New.
6298 To factor...
6299 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
6300 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
6301
6302 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
6303
6304 * NEWS: Instead of %union, you can define and use your own union type
6305 YYSTYPE if your grammar contains at least one <type> tag.
6306 Your YYSTYPE need not be a macro; it can be a typedef.
6307 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
6308 (Union Decl, Decl Summary): Document this.
6309 * data/glr.c (YYSTYPE): Implement this.
6310 * data/glr.cc (YYSTYPE): Likewise.
6311 * data/lalr1.cc (YYSTYPE): Likewise.
6312 * data/yacc.c (YYSTYPE): Likewise.
6313 * src/output.c (prepare): Output tag_seen_flag.
6314 * src/parse-gram.y (declaration, grammar_declaration):
6315 Use 'union_seen' rather than 'typed' to determine whether
6316 %union has been seen, since grammars can now be typed without
6317 %union.
6318 (symbol_declaration, type.opt, symbol_def):
6319 Keep track of whether a tag has been seen.
6320 * src/reader.c (union_seen, tag_seen): New vars.
6321 (typed): remove.
6322 * src/reader.h (union_seen, tag_seen, typed): Likewise.
6323 * src/scan-code.l (untyped_var_seen): New variable.
6324 (handle_action_dollar): Adjust to above changes.
6325 (handle_action_dollar, handle_action_at):
6326 Improve overflow checking for outlandish numbers.
6327 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
6328 avoid new diagnostics generated by above changes.
6329 * tests/regression.at (YYSTYPE typedef): Add test to check
6330 for type tags without %union.
6331
6332 * src/symlist.c (symbol_list_length): Return int, not unsigned
6333 int, since callers expect int. This may need to get revisited
6334 once we have proper integer overflow checking.
6335
6336 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
6337 object is now static.
6338
6339 * src/getargs.c (flags_argmatch): Return void, not int,
6340 to pacify ./configure --enable-gcc-warnings.
6341
6342 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
6343 since last_string is already defined to FLEX_PREFIX (last_string).
6344
6345 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
6346
6347 Implement --warnings/-W.
6348 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
6349 replaced by...
6350 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
6351 Adjust callers.
6352 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
6353 (warnings_args, warnings_types): New.
6354 (getargs, short_options, long_options): Accept -W/--warnings.
6355 Sort the options by alphabetical order, upper case letter right
6356 before its lower case.
6357
6358 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
6359
6360 Change %merge result type clash warnings to errors. Discussed at
6361 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
6362 * src/reader.c (record_merge_function_type): Use complain_at.
6363 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6364 declared later): Update test case results.
6365
6366 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
6367
6368 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
6369 to be in alphabetical order.
6370 (trace_args): Spelling fixes.
6371
6372 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
6373
6374 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
6375 so they don't collide with user-defined macros.
6376 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
6377 this was never guaranteed, and now that we're using gnulib stdint,
6378 which defines int_fast16_t to long int, the problem is exposed.
6379
6380 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
6381
6382 * data/c.m4 (b4_basename): Simplify a bit, since we don't
6383 need the full POSIX semantics (and weren't implementing them
6384 anyway).
6385
6386 Adjust to Autoconf 2.60 and today's gnulib.
6387 * bootstrap (gnulib_modules): Add stdint.
6388 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
6389 no longer copies it.
6390 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
6391 since stdint needs the former and wcwidth (which is now required
6392 by mbswidth) needs the latter.
6393 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
6394 work around a compatibility glitch between gettext 0.14.6 and
6395 Autoconf 2.60.
6396 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
6397 Do not check for uintptr_t, since new stdint module does the right
6398 thing.
6399 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
6400 Add stdint.h, stdint_.h, wcwidth.h.
6401 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
6402 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
6403 stdint.m4, wchar_t.m4, wcwidth.m4.
6404 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
6405 usual order for ../lib/*.h files.
6406 (file_name_split): Use last_component, not base_name, to adjust
6407 to gnulib changes.
6408 * src/parse-gram.h: Include <strverscmp.h> in the usual order
6409 for ../lib/*.h files.
6410 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
6411 Define unconditionally, since we now assume the stdint module.
6412 * src/scan-skel.l: Include <dirname.h>.
6413 (BASE_QPUTS): Use last_component, not base_name.
6414 * src/system.h: Include <unlocked-io.h> in the usual order
6415 for ../lib/*.h files. Include <stdint.h> unconditionally,
6416 since we now use the stdint module.
6417 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
6418 HAVE_UINTPTR_T, since we now use the stdint module.
6419 (base_name): Remove decl, since files now include <dirname.h>
6420 to get the decl.
6421
6422 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
6423
6424 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
6425 New, default to 1.
6426 * data/yacc.c, data/glr.c, data/location.cc: Use them.
6427 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
6428 default.
6429 * tests/calc.at: Adjust.
6430
6431 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
6432
6433 * data/c.m4 (b4_basename): New.
6434 (b4_syncline): Also output the location of its invocation (from
6435 the skeleton).
6436 (b4_user_action, b4_define_user_action, b4_user_actions)
6437 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
6438 (b4_user_stype): New.
6439 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
6440
6441 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
6442
6443 In the grammar file, the first column is 1 not 0 on the first line as
6444 on every other line.
6445 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
6446 * tests/input.at (Torturing the Scanner): Update output.
6447
6448 * src/scan-gram.l (scanner_cursor): Declare it static.
6449
6450 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
6451
6452 In warnings, say "previous declaration" rather than "first
6453 declaration".
6454 * src/symtab.c (redeclaration): Do that here.
6455 * src/reader.c (record_merge_function_type): In the case of a result
6456 type clash, report the previous declaration rather than the very first
6457 one in the grammar file.
6458 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6459 declared later): Add a third declaration to check this behavior.
6460 * tests/input.at (Incompatible Aliases): Update output.
6461
6462 2006-06-27 Akim Demaille <akim@epita.fr>
6463
6464 * doc/Doxyfile.in: New.
6465 * doc/Makefile.am: Use it.
6466 * src/lalr.h, src/symtab.h: Initial doxygenation.
6467
6468 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6469
6470 Don't miss %merge result type warnings just because the LHS types are
6471 declared after the %merge. This continues the effort of the previous
6472 patch.
6473 * src/reader.c (get_merge_function): Don't set the merger type yet.
6474 (record_merge_function_type): New function for setting the merger type
6475 and checking for clashes.
6476 (grammar_current_rule_merge_set): Set the location of the %merge for
6477 the current rule.
6478 (packgram): Invoke record_merge_function_type for each rule now that
6479 all symbol type declarations have been parsed.
6480 * src/reader.h (merger_list.type_declaration_location): New member
6481 storing the location of the first %merge from which the type for this
6482 merging function was derived.
6483 * src/symlist.h (symbol_list.merger_declaration_location): New member
6484 storing the location of a rule's %merge, if any.
6485 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6486 declared later): New test to catch the error fixed by the above patch.
6487
6488 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6489
6490 Get action warnings (grammar_rule_check) right even when symbol
6491 declarations appear after the rules. Discussed at
6492 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
6493 and
6494 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
6495 Don't mistake the type of $$ in a midrule to be that of its parent
6496 rule's $$.
6497 * src/reader.c (grammar_current_rule_end): Don't invoke
6498 grammar_rule_check yet since not all symbol declarations may have been
6499 parsed yet.
6500 (grammar_midrule_action): Likewise.
6501 Don't record whether the midrule's $$ has been used yet since actions
6502 haven't been translated yet.
6503 Record the midrule's parent rule and its RHS index within the parent
6504 rule.
6505 (grammar_current_rule_action_append): Don't translate the action yet
6506 since not all symbol declarations may have been parsed yet and, thus,
6507 warnings about types for $$, $n, @$, and @n can't be reported yet.
6508 (packgram): Translate the action and invoke grammar_rule_check now that
6509 all symbol declarations have been parsed.
6510 * src/scan-code.l (handle_action_dollar): Now that this is invoked
6511 after parsing the entire grammar file, the symbol list here in the case
6512 of a midrule is actually the midrule's empty RHS, so reference its
6513 parent rule's RHS where necessary.
6514 On the other hand, now that you can already know it's a midrule, you
6515 aren't forced to think $$ has the same type as its parent rule's $$.
6516 (handle_action_at): In the case of a midrule, reference the parent rule
6517 where necessary.
6518 * src/symlist.c (symbol_list_new): Initialize new midrule-related
6519 members.
6520 (symbol_list_length): Now that this is invoked after all rules have
6521 been parsed, a NULL symbol (rather than a NULL symbol list node)
6522 terminates a rule. symbol_list_print already does this correctly.
6523 * src/symlist.h (symbol_list.midrule_parent_rule,
6524 symbol_list.midrule_parent_rhs_index): New members so that midrules can
6525 remember their relationships with their parents.
6526 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
6527 fixed by the above patch.
6528 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
6529 implementing...
6530 (Unused values): ... this old test case and...
6531 (Unused values before symbol declarations): ... this new test case.
6532 This one is the same as `Unused values' except that all symbol
6533 declarations appear after the rules in order to catch the rest of the
6534 errors fixed by the above patch.
6535
6536 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6537
6538 More cleanup.
6539 * src/reader.c (current_rule): Declare it static since it's no longer
6540 used outside this file.
6541 (grammar_current_rule_action_append): Remove redundant arguments from
6542 translate_rule_action invocation.
6543 * src/reader.h (current_rule): Remove this unused extern.
6544 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
6545 * src/scan-code.l (translate_rule_action): Likewise.
6546
6547 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
6548
6549 Clean up yesterday's patch.
6550 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
6551 to...
6552 * src/reader.c (grammar_current_rule_action_append): ... here for
6553 consistency with grammar_current_rule_symbol_append.
6554 * tests/regression.at (Braced code in declaration in rules section):
6555 Make yyerror and yylex static as usual.
6556
6557 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
6558
6559 Fix bug that mistakes braced code in a declaration in the rules section
6560 to be a rule action. Mentioned at
6561 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
6562 * src/scan-gram.l: Move midrule action detection from the start of the
6563 scanning of any braced code to...
6564 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
6565 action. For readability, use $2 and @2 rather than the equivalent
6566 global variables.
6567 * tests/regression.at (Braced code in declaration in rules section):
6568 New test to catch the error fixed by the above patch.
6569
6570 Work on code readability some.
6571 * src/scan-code.l (current_rule): Get rid of this misleading and
6572 redundant declaration: it's actually extern'ed in reader.h.
6573 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
6574 translate_action): Add a rule argument and use it instead of the global
6575 current_rule.
6576 (translate_rule_action): This already receives current_rule through an
6577 argument, so pass it on to translate_action instead of assigning
6578 current_rule to current_rule.
6579 (translate_symbol_action, translate_code): Pass rule = NULL to
6580 translate_action.
6581
6582 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
6583
6584 Rename %before-definitions to %start-header and %after-definitions to
6585 %end-header. Don't use these declarations to separate pre-prologue
6586 blocks from post-prologue blocks. Add new order-independent
6587 declarations %before-header and %after-header as alternatives to the
6588 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
6589 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
6590 * NEWS (2.3+): Update for these changes.
6591 * data/glr.c (b4_before_definitions): Update to...
6592 (b4_start_header): ... this.
6593 (b4_after_definitions): Update to...
6594 (b4_end_header): ... this.
6595 * data/glr.cc: Likewise.
6596 * data/lalr1.cc: Likewise.
6597 * data/yacc.c: Likewise.
6598 * doc/bison.texinfo (The prologue): Update names, and replace remaining
6599 prologue blocks with %*-header declarations.
6600 (Calc++ Parser): Likewise.
6601 (Decl Summary): Update names.
6602 (Table of Symbols): Update description.
6603 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
6604 (PERCENT_END_HEADER): ... this.
6605 (PERCENT_BEFORE_DEFINITIONS): Update to...
6606 (PERCENT_START_HEADER): ... this.
6607 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
6608 (declaration): Update token names and m4 macro names.
6609 When parsing %end-header and %start-header, invoke translate_code
6610 before muscle_code_grow, and no longer set global booleans to remember
6611 whether these declarations have been seen.
6612 Parse new %after-header and %before-header.
6613 * src/reader.c (before_definitions, after_definitions): Remove.
6614 (prologue_augment): Accept a new bool argument to specify whether to
6615 augment the pre-prologue or post-prologue.
6616 * src/reader.h (before_definitions, after_definitions): Remove these
6617 extern's.
6618 (prologue_augment): Add new bool argument.
6619 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
6620 (PERCENT_END_HEADER): ... this.
6621 (PERCENT_BEFORE_DEFINITIONS): Update to...
6622 (PERCENT_START_HEADER): ... this.
6623 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
6624 * tests/actions.at (Printers and Destructors): Update names.
6625
6626 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
6627
6628 Add comparison operators for C++ location classes. Discussed at
6629 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
6630 * data/c++.m4 (b4_define_location_comparison): New boolean %define
6631 declaration indicating whether filename_type has an operator==. If
6632 filename_type is `std::string', it defaults to `1', `0' otherwise.
6633 * data/location.cc: Iff b4_define_location_comparison is `1', add
6634 operator== and operator!= for class position and for class location.
6635
6636 Some minor fixes.
6637 * src/scan-action.l: Remove unused file.
6638 * src/symtab.c (symbol_printer_set): Use printer_location not
6639 destructor_location.
6640 * src/symtab.h (struct symbol): Replace incorrect source comment for
6641 printer members.
6642 * tests/input.at (Incompatible Aliases): Update output with correct
6643 printer location.
6644
6645 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
6646
6647 Don't put the pre-prologue in the header file. For the yacc.c code
6648 file and the glr.c header and code files, move the pre-prologue before
6649 the token definitions. Add new %before-definitions and
6650 %after-definitions to declare code that will go in both the header file
6651 and code file. Discussed at
6652 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
6653 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
6654 and
6655 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
6656 * NEWS (2.3+): Describe these changes.
6657 * data/glr.c (b4_pre_prologue): Move from within to before...
6658 (b4_shared_declarations): ... this.
6659 Add new b4_before_definitions before b4_token_enums.
6660 Add new b4_after_definitions at the end.
6661 * data/glr.cc (b4_pre_prologue): Replace with...
6662 (b4_before_definitions): ... this in the header file.
6663 (b4_after_definitions): New near the end of the header file.
6664 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
6665 code file right before including the header file.
6666 (b4_before_definitions): New in the previous position of
6667 b4_pre_prologue in the header file.
6668 (b4_after_definitions): New near the end of the header file.
6669 * data/yacc.c: Clean up some m4 quoting especially in the header file.
6670 (b4_token_enums_defines): In the code file, move to right before
6671 YYSTYPE for consistency with the header file.
6672 (b4_before_definitions): New right before b4_token_enums_defines in
6673 both the header and code file.
6674 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
6675 header and code file.
6676 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
6677 of prologues for %union dependencies.
6678 (Decl Summary): In %defines description, mention the effect of
6679 %before-definitions and %after-definitions on the header file.
6680 (Calc++ Parser): Forward declare driver in a %before-definitions rather
6681 than in the pre-prologue so that make check succeeds.
6682 (Table of Symbols): Add entries for %before-definitions and
6683 %after-definitions.
6684 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
6685 %before-definitions.
6686 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
6687 (declaration): Parse those declarations and append to
6688 b4_before_definitions and b4_after_definitions, respectively.
6689 * src/reader.c (before_definitions, after_definitions): New bools to
6690 track whether those declarations have been seen.
6691 (prologue_augment): Add to the post-prologue if %union,
6692 %before-definitions, or %after-definitions has been seen.
6693 * src/reader.h (before_definitions, after_definitions): New extern's.
6694 * src/scan-gram.l: Scan the new declarations.
6695 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
6696 prologue block in a %before-definitions or a %after-definitions based
6697 on whether the %union is declared.
6698 * tests/regression.at (Early token definitions with --yacc, Early token
6699 definitions without --yacc): Move tests for token definitions into the
6700 post-prologue since token names are no longer defined in the
6701 pre-prologue.
6702
6703 2006-06-20 Akim Demaille <akim@epita.fr>
6704
6705 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
6706 (symbol_get): Use it.
6707 * src/parse-gram.y: Use it.
6708
6709 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
6710
6711 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
6712 build succeeds when configured with --enable-gcc-warnings.
6713
6714 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
6715
6716 * src/parse-gram.y (char_name): New function.
6717 (CHAR, STRING, string_content): For %printer, properly escape.
6718 (ID): Prefer fputs to fprintf.
6719 (id): Reindent to be consistent with other rules.
6720 Properly quote char.
6721
6722 The Translation Project changed its way of publishing translations
6723 to maintainers. I haven't received any responses to my request
6724 for supporting the old way, or for documenting the new way. I
6725 have modified 'bootstrap' to use screen scraping
6726 (in this case, HTML scraping). This is unreliable and inelegant,
6727 but I don't see any better way. Yuck.
6728 * bootstrap (TP_URL, WGET_COMMAND): New vars.
6729 (get_translations): New function, which uses HTML scraping to
6730 deduce locations of latest translations.
6731 Use this function to grab both bison and bison-runtime .po files.
6732 Don't bother priming the pump for the runtime-po domain any more,
6733 as it's now translated better than bison is.
6734
6735 2006-06-19 Akim Demaille <akim@epita.fr>
6736
6737 * src/scan-gram.l: No longer "parse" things after `%union' until
6738 `{'. Rather, return a single "%union" token.
6739 No longer make symbols: return strings, and leave the conversion
6740 to symbols to the parser.
6741 (SC_PRE_CODE, token_type): Remove.
6742 * src/parse-gram.y (%union): New field `character'.
6743 Sort tokens.
6744 (CHAR): New token.
6745 (ID, ID_COLON): Now that the scanner no longer makes them
6746 identifiers, adjust all uses to invoke symbol_get.
6747 (id_colon): New, wraps the conversion from string to symbol.
6748 (%union): Accept a possible union_name.
6749 (symbol): Now can be a char.
6750 * data/c.m4 (b4_union_name): Leave a default value.
6751 * data/glr.c, data/yacc.c: Use it.
6752
6753 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
6754
6755 For associating token numbers with token names for "yacc.c", don't use
6756 #define statements unless `--yacc' is specified; always use enum
6757 yytokentype. Most important discussions start at:
6758 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
6759 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
6760 and
6761 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
6762 * NEWS (2.3+): Mention.
6763 * data/c.m4 (b4_yacc_if): New.
6764 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
6765 token #define's.
6766 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
6767 on token name definitions.
6768 * src/getargs.c (usage): Capitalize `Yacc' in English.
6769 * src/output.c (prepare): Define b4_yacc_flag.
6770 * tests/regression.at (Early token definitions): Test that tokens names
6771 are defined before the pre-prologue not just before the post-prologue.
6772 Remove this test case and copy to...
6773 (Early token definitions with --yacc): ... this to test #define's.
6774 (Early token definitions without --yacc): ... and this to test enums.
6775
6776 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
6777
6778 * NEWS: Reword the post-2.3 change to not be so optimistic about
6779 removing the old "look-ahead" spelling.
6780 Update previous look-ahead/lookahead change reports.
6781 * REFERENCES: look-ahead -> lookahead (since that's
6782 what he actually wrote).
6783 * doc/refcard.tex: look ahead -> lookahead,
6784 look-ahead -> lookahead
6785
6786 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
6787
6788 For consistency, use `lookahead' instead of `look-ahead' or
6789 `look_ahead'. Discussed starting at
6790 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
6791 and then at
6792 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
6793 * NEWS: For the next release, note the change to `--report'.
6794 * TODO, doc/bison.1: Update English.
6795 * doc/bison.texinfo: Update English.
6796 (Understanding Your Parser, Bison Options): Document as
6797 `--report=lookahead' rather than `--report=look-ahead'.
6798 * src/conflicts.c: Update English in comments.
6799 (lookahead_set): Rename from look_ahead_set.
6800 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
6801 (resolve_sr_conflict): Rename local look_ahead_tokens to
6802 lookahead_tokens, and update other uses.
6803 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
6804 count_rr_conflicts, conflicts_free): Update uses.
6805 * src/getargs.c (report_args): Move "lookahead" before alternate
6806 spellings.
6807 (report_types): Update uses.
6808 (usage): For `--report' usage description, state `lookahead' spelling
6809 rather than `look-ahead'.
6810 * src/getargs.h (report.report_lookahead_tokens): Rename from
6811 report_look_ahead_tokens.
6812 * src/lalr.c: Update English in comments.
6813 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
6814 (state_lookahead_tokens_count): Rename from
6815 state_look_ahead_tokens_count.
6816 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6817 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
6818 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6819 Update other uses.
6820 Update English in output.
6821 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
6822 * src/print.c: Update English in comments.
6823 (lookahead_set): Rename from look_ahead_set.
6824 (print_reduction): Rename argument lookahead_token from
6825 look_ahead_token.
6826 (print_core, state_default_rule, print_reductions, print_results):
6827 Update uses.
6828 * src/print_graph.c: Update English in comments.
6829 (print_core): Update uses.
6830 * src/state.c: Update English in comments.
6831 (reductions_new): Update uses.
6832 (state_rule_lookahead_tokens_print): Rename from
6833 state_rule_look_ahead_tokens_print, and update other uses.
6834 * src/state.h: Update English in comments.
6835 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
6836 (state_rule_lookahead_tokens_print): Rename from
6837 state_rule_look_ahead_tokens_print.
6838 * src/tables.c: Update English in comments.
6839 (conflict_row, action_row): Update uses.
6840 * tests/glr-regression.at
6841 (Incorrect lookahead during deterministic GLR,
6842 Incorrect lookahead during nondeterministic GLR): Rename
6843 print_look_ahead to print_lookahead.
6844 * tests/torture.at: Update English in comments.
6845 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
6846 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
6847 (Many lookahead tokens): Update uses.
6848 * data/glr.c: Update English in comments.
6849 * lalr1.cc: Likewise.
6850 * yacc.c: Likewise.
6851 * src/conflicts.h: Likewise.
6852 * src/lalr.h: Likewise.
6853 * src/main.c: Likewise.
6854 * src/output.c: Likewise.
6855 * src/parse-gram.c: Likewise.
6856 * src/tables.h: Likewise.
6857 * tests/calc.at: Likewise.
6858
6859 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
6860
6861 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
6862
6863 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
6864
6865 * TODO: Add request from Nelson H. F. Beebe to be able to install
6866 Bison without installing the yacc script.
6867
6868 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6869
6870 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
6871 and yytext if they're already #define'd.
6872 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
6873 * src/scan-code-c.c: ... here.
6874 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
6875 <config.h>.
6876
6877 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6878
6879 Get Bison to build again when configured with --enable-gcc-warnings.
6880 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
6881 missing #include's.
6882 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
6883 loc argument as it shadows a global.
6884 * src/scan-gram.l: Remove stray comma that prevents boundary_set
6885 invocation.
6886
6887 * src/.cvsignore: Add scan-code.c.
6888
6889 2006-06-07 Akim Demaille <akim@epita.fr>
6890
6891 * src/scan-gram.l: Move the "add a trailing ; to actions" code
6892 to...
6893 * src/scan-code.l: here.
6894 * tests/input.at (Torturing the Scanner): Fix another location
6895 error.
6896
6897 2006-06-07 Akim Demaille <akim@epita.fr>
6898
6899 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
6900
6901 2006-06-06 Akim Demaille <akim@epita.fr>
6902
6903 Extract the parsing of user actions from the grammar scanner.
6904 As a consequence, the relation between the grammar scanner and
6905 parser is much simpler. We can also split "composite tokens" back
6906 into simple tokens.
6907 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
6908 * src/scan-gram.l (add_column_width, adjust_location): Move to and
6909 rename as...
6910 * src/location.h, src/location.c (add_column_width)
6911 (location_compute): these.
6912 Fix the column count: the initial column is 0.
6913 (location_print): Be robust to ending column being 0.
6914 * src/location.h (boundary_set): New.
6915 * src/main.c: Adjust to scanner_free being renamed as
6916 gram_scanner_free.
6917 * src/output.c: Include scan-code.h.
6918 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
6919 Use boundary_set.
6920 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
6921 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
6922 which is now, again, a separate token.
6923 Adjust all dependencies.
6924 Whereever actions with $ and @ are used, use translate_code.
6925 (action): Remove this nonterminal which is now useless.
6926 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
6927 (grammar_current_rule_action_append): Use translate_code.
6928 (packgram): Bound check ruleno, itemno, and rule_length.
6929 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
6930 (last_string, last_braced_code_loc, max_left_semantic_context)
6931 (scanner_initialize, scanner_free, scanner_last_string_free)
6932 (gram_out, gram_lineno, YY_DECL_): Move to...
6933 * src/scan-gram.h: this new file.
6934 (YY_DECL): Rename as...
6935 (GRAM_DECL): this.
6936 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
6937 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
6938 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
6939 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
6940 Move these declarations, and...
6941 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
6942 these to...
6943 * src/flex-scanner.h: this new file.
6944 * src/scan-gram.l (rule_length, rule_length_overflow)
6945 (increment_rule_length): Remove.
6946 (last_braced_code_loc): Rename as...
6947 (gram_last_braced_code_loc): this.
6948 Adjust to the changes of the parser.
6949 Move all the handling of $ and @ into...
6950 * src/scan-code.l: here.
6951 * src/scan-gram.l (handle_dollar, handle_at): Remove.
6952 (handle_action_dollar, handle_action_at): Move to...
6953 * src/scan-code.l: here.
6954 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
6955 scan-code.h, scan-code-c.c, scan-gram.h.
6956 (EXTRA_bison_SOURCES): Add scan-code.l.
6957 (BUILT_SOURCES): Add scan-code.c.
6958 (yacc): Be robust to white spaces.
6959
6960 * tests/conflicts.at, tests/input.at, tests/reduce.at,
6961 * tests/regression.at: Adjust the column numbers.
6962 * tests/regression.at: Adjust the error message.
6963
6964 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
6965
6966 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
6967 Use Akim's wording from
6968 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
6969
6970 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
6971
6972 Between Bison releases, manually append `+' to the previous Bison
6973 release number, and use that as a signal to automatically print the
6974 ChangeLog's CVS Id keyword from --version. Discussed starting at
6975 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
6976 * ChangeLog: Add Id header.
6977 * configure.ac (AC_INIT): Append `+' to `2.3'.
6978 * src/.cvsignore: Add revision.c.
6979 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
6980 (BUILT_SOURCES): Add revision.c.
6981 (revision.c): New target rule. This file defines a new global variable
6982 named revision. It initializes it with either the Id from ChangeLog
6983 or, if VERSION doesn't contain `+', with the empty string.
6984 * src/getargs.c (version): Print the value of revision.
6985 * src/revision.h: Extern revision.
6986
6987 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
6988
6989 * NEWS: Version 2.3.
6990 * configure.ac (AC_INIT): Likewise.
6991
6992 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
6993
6994 * data/glr.c (YYRECOVERING): Define to be a function-like macro
6995 with no arguments, not as an object-like macro. This is for
6996 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
6997 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
6998 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
6999 Document this.
7000
7001 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
7002
7003 * src/getargs.c (usage): Back out yesterday's modification of the
7004 --help output so that we don't have to wait for translation before
7005 releasing 2.3.
7006
7007 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
7008
7009 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
7010 Problem reported by Akim Demaille.
7011
7012 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
7013
7014 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
7015
7016 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
7017
7018 * data/yacc.c (yy_reduce_print): Omit trailing white space in
7019 generated source code. Problem reported by Frans Englich in
7020 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
7021
7022 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
7023
7024 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
7025 shell, not within 'make', so that 'make' by an ordinary builder
7026 (using GNU make) does not worry about configuring gzip. This also
7027 works around a bug reported independently by Keith Thompson and by
7028 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
7029 stderr rather than stdout, messing up the build logs.
7030
7031 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7032
7033 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
7034 to make sure that YYID will never be unused. This fixes a 'make
7035 maintainer-check' failure caused by the recent changes to the 'Trivial
7036 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
7037 not used.
7038 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
7039
7040 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7041
7042 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
7043 state before an empty RHS is always resolved here. Only the location
7044 of that state is guaranteed to be resolved, and that's enough. This
7045 fixes the remaining bug reported by Derek M. Jones in
7046 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7047 * tests/glr-regression.at (Uninitialized location when reporting
7048 ambiguity): Test the above case.
7049 Also, the embedded comments in this test case claim it checks the case
7050 of an empty RHS that has inherited the initial location. However, the
7051 corresponding LHS was already resolved, so yyresolveLocations didn't
7052 actually have reason to modify it. Fix this by forcing
7053 nondeterministic operation at the beginning of the parse.
7054
7055 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
7056
7057 * data/c.m4 (b4_yy_symbol_print_generate):
7058 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
7059 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
7060 of the bugs reported today by Derek M Jones in
7061 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7062 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
7063 defined to be a type name without parens or brackets.
7064 (Location Type): Similarly for YYLTYPE.
7065 * tests/regression.at (Trivial grammars): Put in a test for this
7066 bug that will be caught by 'make maintainer-check' (though not,
7067 alas, by 'make check' unless your compiler is picky).
7068
7069 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
7070
7071 * NEWS: Version 2.2.
7072 * configure.ac (AC_INIT): Likewise.
7073
7074 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
7075
7076 * data/glr.c (yyreportTree): Make room in yystates for the state
7077 preceding the RHS. This fixes the segmentation fault reported by Derek
7078 M. Jones in
7079 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
7080 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
7081 to the user. Reported for yyreportTree by Derek M. Jones later in the
7082 same thread.
7083 * THANKS: Add Derek M. Jones.
7084 Update my email address.
7085 Fix typo in Steve Murphy's name.
7086
7087 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
7088
7089 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
7090 checking against YYLAST that caused the parser to miss a potential
7091 alternative in its diagnostic.
7092 Problem reported by Maria Jose Moron Fernandez in
7093 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
7094 * data/lalr1.cc (yysyntax_error_): Likewise.
7095 * data/yacc.c (yysyntax_error): Likewise.
7096 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
7097 tokens, in case we run into an older C compiler.
7098 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
7099 Use them to check for the off-by-one error fixed above.
7100
7101 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
7102 YYSIZE_T, not size_t.
7103 * tests/regression.at (Trivial grammars): New test, to catch
7104 the error fixed by the above patch.
7105
7106 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7107
7108 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
7109 scheme.
7110 Reported by Steve Murphy.
7111
7112 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7113
7114 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
7115 * data/glr.cc: b4_location_flag is now b4_locations_flag.
7116
7117 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7118
7119 Implement --trace=m4.
7120 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
7121 * src/output.c (output_skeleton): When set, pass -dV to m4.
7122
7123 Factor the handling of flags in m4.
7124 * src/output.c (prepare): Rename the muscle names debug, defines,
7125 error_verbose to debug_flag, defines_flag, error_verbose_flag.
7126 * data/c.m4: Adjust.
7127 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
7128 Use b4_define_flag_if to define other b4_FLAG_if macros.
7129 (b4_location_if): As a consequence, rename as...
7130 (b4_locations_if): this, for consistency.
7131 Adjust all the skeletons.
7132
7133 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7134
7135 * etc/bench.pm: Shorten bench names.
7136
7137 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7138
7139 * src/output.h, src/output.c (error_verbose): Move to...
7140 * src/getargs.h, src/getargs.c: here.
7141 Sort the flags.
7142 Adjust dependencies.
7143
7144 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
7145
7146 * data/c.m4 (b4_copyright): Put the special exception for Bison
7147 skeletons here, so we don't have to put it in each skeleton. All
7148 uses changed. Suggested by Akim Demaille. Also, wrap the
7149 copyright notice, in case it is longer than 80 columns. Replace
7150 comma by newline after title.
7151
7152 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
7153
7154 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
7155 incompatibility, not a bug. Mention that it wasn't fixed as of
7156 flex 2.5.33.
7157
7158 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7159
7160 * examples/extexi: Enforce the precedence of concatenation over
7161 >>.
7162 Reported by Tommy Nordgren.
7163
7164 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7165
7166 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
7167 with the member "token".
7168 Reported by Martin Nylin.
7169
7170 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
7171
7172 * data/glr.c: Switch to Bison 2.2 special-exception language in
7173 the copyright notice. Use more-regular format for titles and
7174 copyright notices.
7175 * data/glr.cc: Likewise.
7176 * data/location.cc: Likewise.
7177 * data/yacc.cc: Likewise.
7178 * doc/bison.texinfo (Conditions): Document this.
7179 * NEWS: likewise. Upgrade version to 2.2.
7180
7181 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
7182
7183 * data/glr.cc: Remove dead code.
7184
7185 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
7186
7187 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
7188 that variable and the line breaks the bootstrap. Problem reported
7189 by Juan M. Guerrero.
7190
7191 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7192
7193 * doc/bison.texinfo (Multiple start-symbols): New.
7194
7195 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7196
7197 * etc/README, etc/bench.pl: New.
7198
7199 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
7200
7201 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
7202 rule.
7203 Reported by Mickael Labau.
7204 * tests/input.at (Torturing the Scanner): Test it.
7205
7206 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
7207
7208 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
7209 Problem reported by Bob Rossi.
7210
7211 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
7212
7213 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
7214 and didn't really work.
7215 For the index, use @ifnotinfo, not @iftex.
7216 Minor cleanups of spacing and terminology.
7217
7218 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7219
7220 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
7221 of AT_NAME_PREFIX when %name-prefix is not used.
7222
7223 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7224
7225 Apply --prefix to C++ skeletons too: they change the namespace.
7226 The test suite already exercize these cases.
7227 * data/c++.m4 (b4_namespace): New.
7228 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
7229 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
7230 * data/yacc.c, data/glr.c: Remove a useless `[]'.
7231 * doc/bison.texinfo: Document it.
7232 (Option Cross Key): Use @multitable in all formats. It looks
7233 nicer, even in TeX outputs.
7234 (Rules): Use the same code whatever the output type is.
7235 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
7236 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
7237 * tests/calc.at: Use it, instead of hard coding `yy'.
7238
7239 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7240
7241 * TODO: Remove dead items.
7242
7243 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7244
7245 * doc/FAQ: Remove, merged into...
7246 * doc/bison.texinfo (FAQ): this.
7247 * doc/Makefile.am (EXTRA_DIST): Adjust.
7248
7249 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7250
7251 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
7252 even if empty.
7253 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
7254 * doc/bison.texinfo (Calc++ Scanner): Use it.
7255
7256 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
7257
7258 Fix two nits reported by twlevo, plus one more that I discovered.
7259
7260 * src/assoc.h (assoc_to_string): Give a name to the arg, as
7261 this is the usual Bison style.
7262 * src/location.h (location_print): Likewise.
7263
7264 * src/reader.h (token_name): Likewise.
7265
7266 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
7267
7268 Fix some nits reported by twlevo.
7269 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
7270 and "POSIX". Use more-modern syntax for URLs. Mention C++
7271 and ask for Java. Don't hardwire OS version numbers. Add
7272 copyright notice.
7273 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
7274 * src/conflicts.c (solved_conflicts_obstack): Now static.
7275
7276 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
7277
7278 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
7279 page. Say "you can use it" not "you may use it" as on the web page;
7280 we're describing capabilities not granting permission.
7281
7282 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
7283
7284 * data/glr.c (yyresolveLocations): Rename local variables to avoid
7285 shadowing warnings. Use usual patter for iterating through RHS.
7286 * tests/glr-regression.at
7287 (Uninitialized location when reporting ambiguity):
7288 Modify yylex so that it uses its argument, rather than trying
7289 to rely on ARGSUSED (which doesn't work for gcc with warnings).
7290 const char -> char const.
7291
7292 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
7293 Don't use tabs inside commands; it messes up 'ps'.
7294 Problem reported by twlevo.
7295
7296 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
7297
7298 * tests/glr-regression.at (Uninitialized location when reporting
7299 ambiguity): New test case.
7300 * data/glr.c (yyresolveLocations): New function, which uses
7301 YYLLOC_DEFAULT.
7302 (yyresolveValue): Invoke yyresolveLocations before reporting an
7303 ambiguity.
7304 * doc/bison.texinfo (Default Action for Locations): Note
7305 YYLLOC_DEFAULT's usage for ambiguity locations.
7306 (GLR Semantic Actions): Cross-reference those notes.
7307
7308 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
7309
7310 * tests/glr-regression.at (Leaked semantic values when reporting
7311 ambiguity): Remove unnecessary union and type declarations.
7312 (Leaked lookahead after nondeterministic parse syntax error): New test
7313 case.
7314 * data/glr.c (yyparse): Check for zero stacks remaining before
7315 attempting to shift the lookahead so that you don't lose it.
7316
7317 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7318
7319 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
7320 * tests/glr-regression.at (Leaked semantic values when reporting
7321 ambiguity): New test case.
7322 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
7323 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
7324 now unnecessary yystackp parameter.
7325 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
7326 destructors can be called.
7327
7328 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
7329 in existing testcases.
7330
7331 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7332
7333 Don't leak semantic values for parent RHS when a user action cuts the
7334 parser, and clean up related code a bit.
7335 * tests/glr-regression.at (Leaked merged semantic value if user action
7336 cuts parse): Rename to...
7337 (Leaked semantic values if user action cuts parse): ... this. Add check
7338 for leaked parent RHS values.
7339 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
7340 between an unresolved state (non-empty chain of semantic options) and
7341 an incomplete one (signaled by an empty chain).
7342 (yyresolveStates): Document the interface. Move all manipulation of a
7343 successfully or unsuccessfully resolved yyGLRState to...
7344 (yyresolveValue): ... here so that yyresolveValue always leaves a
7345 yyGLRState with consistent data and thus is easier to understand.
7346 Remove the yyvalp and yylocp parameters since they are always just
7347 taken from the yys parameter. When reporting a discarded merged value
7348 in debugging output, note that it is incompletely merged. Document the
7349 interface.
7350 (yyresolveAction): If resolving any of the RHS states fails, destroy
7351 them all rather than leaking them. Thus, as long as user actions are
7352 written to clean up the RHS correctly, yyresolveAction always cleans up
7353 the RHS of a semantic option. Document the interface.
7354
7355 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
7356
7357 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
7358 led to a segmentation fault in GNU Pascal. Problem reported
7359 by Waldek Hebisch.
7360
7361 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
7362
7363 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
7364 mid-rule action inside a nonterminal symbol in order to declare a
7365 destructor for its semantic value.
7366
7367 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
7368
7369 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
7370 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
7371 __cplusplus && ! defined _STDLIB_H && !
7372 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
7373 defined free))]: Include <stdlib.h> rather than rolling our own
7374 declarations of malloc and free, to avoid problems with
7375 incompatible declarations (using 'throw') C++'s stdlib.h. This
7376 should fix Debian bug 340012
7377 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
7378 reported by Guillaume Melquiond.
7379
7380 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
7381
7382 * NEWS: Clarify symbols versus types in unused-value warnings.
7383
7384 * configure.ac (AC_INIT): Bump version number.
7385
7386 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
7387
7388 * NEWS: Version 2.1a.
7389 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
7390 since C99 requires this.
7391
7392 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
7393
7394 * m4/c-working.m4: New file.
7395 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
7396
7397 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
7398
7399 * Makefile.maint: Merge from coreutils.
7400
7401 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
7402
7403 More portability fixes for problems summarized by Nelson H. F. Beebe.
7404
7405 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
7406 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
7407 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
7408 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
7409 messes up because C++ code is compiled in 32-bit mode but linked
7410 in 64-bit mode.
7411
7412 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
7413
7414 More portability fixes for problems summarized by Nelson H. F. Beebe.
7415
7416 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
7417 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
7418
7419 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
7420 nodist_PROGRAMS, since we don't need to actually compile the
7421 example if we're just doing a plain 'make'. This avoids bothering
7422 the installer unnecessarily about problems due to weird C++
7423 compilers.
7424
7425 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
7426
7427 More portability fixes for problems summarized by Nelson H. F. Beebe.
7428
7429 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
7430 than #include "...", and compile with -I'.'. The old method was
7431 not portable, according to Posix and the C standard, and it does
7432 not work with Sun C 5.7, where previous #line directives affect
7433 the working directory used in later #include "..." directives.
7434
7435 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7436
7437 Various DJGGP specific issues in /djgpp
7438
7439 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
7440
7441 More portability fixes for problems summarized by Nelson H. F. Beebe.
7442
7443 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
7444 '#include <map>' works and that you can apply ++ to iterators.
7445
7446 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
7447
7448 Work around portability problems summarized by Nelson H. F. Beebe in
7449 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
7450
7451 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
7452 that '#include <string>' works.
7453
7454 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
7455 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
7456 "warning: sorry: semantics of inline function static data `const
7457 unsigned char translate_table[262]' are wrong (you'll wind up with
7458 multiple copies)".
7459
7460 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
7461 or, xor to not_, and_, or_, and xor_, respectively. This works
7462 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
7463 random system header somewhere that includes the equivalent of
7464 <iso646.h>.
7465
7466 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
7467 -E" works; it apparently doesn't work with PathScale EKO Compiler
7468 Suite Version 2.0.
7469
7470 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
7471
7472 During deterministic GLR operation, user actions should be able to
7473 influence the parse by changing yychar. To make this easier to fix and
7474 to make glr.c easier to evolve in general, don't maintain yytoken in
7475 parallel with yychar; just compute yytoken when needed.
7476 * tests/glr-regression.at (Incorrect lookahead during deterministic
7477 GLR): Check that setting yychar in a user action has the intended
7478 effect.
7479 * data/glr.c (yyGLRStack): Remove yytokenp member.
7480 (yyclearin): Don't set *yytokenp.
7481 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
7482 yychar rather than *yytokenp to determine the current lookahead.
7483 Compute yytoken locally when needed.
7484 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
7485 point to.
7486
7487 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
7488 after `--report' documentation.
7489
7490 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
7491
7492 * src/parse-gram.y (grammar_declaration): Location of printer
7493 symbol is @1, not list->location. Bug reported by twlevo.
7494 * tests/input.at (Incompatible Aliases): Adjust to above change.
7495
7496 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
7497
7498 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
7499 all the test at once. This makes the output easier to read in the
7500 normal case.
7501
7502 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
7503 got from <http://bro-ids.org/download.html>. The bug is that
7504 when two actions appeared in succession, the second one was
7505 scanned before the first one was added to the grammar rule
7506 as a midrule action. Bison then output the incorrect warning
7507 "parse.y:905.17-906.36: warning: unused value: $3".
7508 * src/parse-gram.y (BRACED_CODE, action): These are no longer
7509 associated with a value.
7510 (rhs): Don't invoke grammar_current_rule_action_append.
7511 (action): Invoke it here instead.
7512 * src/reader.c (grammar_midrule_action): Now extern.
7513 (grammar_current_rule_action_append): Don't invoke
7514 grammar_midrule_action; that is now the scanner's job.
7515 * src/reader.h (last_string, last_braced_code_loc):
7516 (grammar_midrule_action): New decls.
7517 * src/scan-gram.l (last_string): Now extern, sigh.
7518 (last_braced_code_loc): New extern variable.
7519 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
7520 rule already has an action.
7521 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
7522 * tests/input.at (AT_CHECK_UNUSED_VALUES):
7523 Add some tests to check that the above changes fixed the bug.
7524
7525 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
7526
7527 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
7528 All used changed. Check whether the symbol has a destructor,
7529 not whether it is typed.
7530 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
7531 that the values are still reported as unused. All line numbers
7532 adjusted.
7533
7534 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
7535
7536 Work around a bug in bro 0.8, which underparenthesizes its
7537 definition of YYLLOC_DEFAULT.
7538 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
7539 their arguments.
7540 * data/lalr1.cc: Likewise.
7541 * data/yacc.cc: Likewise.
7542
7543 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
7544
7545 Work around a bug in Pike 7.0, and give the Pike folks a
7546 better way to override the usual int widths.
7547 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
7548 user can override the types.
7549 (short): #undef, to work around a bug in Pike 7.0.
7550 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
7551 (union yyalloc.yyss): Use yytype_int16 rather than short.
7552 All uses changed.
7553 (yysigned_char): Remove.
7554 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
7555 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
7556 * tests/regression.at (Web2c Actions): Adjust to above changes.
7557
7558 * src/reader.c (check_and_convert_grammar): New function.
7559 (reader): Close the input file even if something went wrong during
7560 parsing. Minor file descriptor leak reported by twlevo.
7561
7562 * src/assoc.c (assoc_to_string): Use a default: abort (); case
7563 to pacify gcc -Wswitch-default.
7564 * src/scan-gram.l (adjust_location): Use a default: break; case
7565 to pacify gcc -Wswitch-default.
7566 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
7567 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
7568 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
7569 Move these decls to scan-skel.l, since they don't need to be
7570 visible elsewhere.
7571 * src/scan-skel.l: Accept the above decls.
7572 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
7573 is used.
7574
7575 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
7576
7577 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
7578 since we don't want to insist on a version number at the start
7579 of the changelog every time.
7580 * Makefile.maint: Sync from coreutils a bit better.
7581 (sc_trailing_blank): Renamed from sc_trailing_space.
7582 All uses changed.
7583 (sc_no_if_have_config_h, sc_require_config_h):
7584 (sc_prohibit_assert_without_use): New rules.
7585 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
7586 (sc_dd_max_sym_length): Fix leading spaces in rule.
7587 (sc_system_h_headers): Prefix with @.
7588 (sc_useless_cpp_parens, m4-check): Output line numbers.
7589 (changelog-check): Allow version only in head.
7590 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
7591 satisfy new Makefile.maint rule.
7592 * data/glr.c: Likewise.
7593 * data/glr.cc: Likewise.
7594 * data/lalr1.cc: Likewise.
7595 * data/yacc.c: Likewise.
7596 * lib/ebitsetv.c: Likewise.
7597 * lib/lbitset.c: Likewise.
7598 * lib/subpipe.c: Likewise.
7599 * lib/timevar.c: Likewise.
7600 * src/system.h: Likewise.
7601 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
7602 * djgpp/Makefile.maint: Add copyright notice.
7603 * djgpp/README.in: Likewise.
7604 * djgpp/config.bat: Likewise.
7605 * djgpp/config.site: Likewise.
7606 * djgpp/config_h.sed: Likewise.
7607 * djgpp/djunpack.bat: Likewise.
7608 * djgpp/config.sed: Fix copyright notice to match standard format.
7609 * djgpp/subpipe.h: Likewise.
7610 * lib/bitsetv-print.c: Likewise.
7611 * lib/bitsetv.c: Likewise.
7612 * lib/subpipe.h: Likewise.
7613 * lib/timevar.c: Likewise.
7614 * lib/timevar.h: Likewise.
7615 * djgpp/subpipe.c: Use standard recipe for config.h.
7616 * lib/abitset.c: Likewise.
7617 * lib/bitset.c: Likewise.
7618 * lib/bitset_stats.c: Likewise.
7619 * lib/bitsetv-print.c: Likewise.
7620 * lib/bitsetv.c: Likewise.
7621 * lib/ebitsetv.c: Likewise.
7622 * lib/get-errno.c: Likewise.
7623 * lib/lbitset.c: Likewise.
7624 * lib/subpipe.c: Likewise.
7625 * lib/timevar.c: Likewise.
7626 * lib/vbitset.c: Likewise.
7627 * tests/local.at: Likewise.
7628 * src/scan-gram.l: Don't include verify.h, since system.h does
7629 that for us.
7630 * .x-sc_require_config_h: New file.
7631 * .x-sc_unmarked_diagnostics: New file.
7632
7633 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
7634
7635 Be a bit more systematic about using 'abort'.
7636 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
7637 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
7638 Put 'default: abort ();' before some other case, to satisfy older
7639 pedantic compilers.
7640 * lib/bitset_stats.c (bitset_stats_init): Likewise.
7641 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
7642 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
7643 * src/conflicts.c (resolve_sr_conflict): Likewise.
7644 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
7645 (get_decision_str, get_orientation_str, get_node_alignment_str):
7646 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
7647 (get_linestyle_str, get_arrowstyle_str): Likewise.
7648 * src/conflicts.c (resolve_sr_conflict):
7649 Use a default case rather than one for the one remaining enum
7650 value, to catch invalid enum values as well.
7651 * src/lalr.c (set_goto_map, map_goto):
7652 Prefer "assert (FOO);" to "if (!FOO) abort ();".
7653 * src/nullable.c (nullable_compute, token_definitions_output):
7654 Likewise.
7655 * src/reader.c (packgram, reader): Likewise.
7656 * src/state.c (transitions_to, state_new, state_reduction_find):
7657 Likewise.
7658 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
7659 (symbol_pack): Likewise.
7660 * src/tables.c (conflict_row, pack_vector): Likewise.
7661 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
7662 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
7663 * src/system.h: Don't include <assert.h>.
7664 (assert): New macro.
7665
7666 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
7667 (Destructor Decl, Parser Function, Pure Calling):
7668 Describe rules for braces inside C code more carefully.
7669
7670 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
7671
7672 Fix some porting glitches found by Nelson H. F. Beebe.
7673 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
7674 compilers that don't understand that abort () does not return.
7675 * src/state.c (transitions_to): Likewise.
7676 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
7677 that '#include <cstdlib>' works.
7678 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
7679 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
7680 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
7681 for the benefit of some pre-C99 compilers.
7682
7683 * bootstrap: Undo changes to gnulib files that autoreconf made.
7684
7685 Minor fixups to get 'make maintainer-check' to work.
7686 * configure.ac: Don't use -Wnested-externs, as it's incompatible
7687 with the new verify.h implementation.
7688 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
7689 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
7690 * data/yacc.c (YYUSE): Likewise.
7691 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
7692 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
7693 * src/parse-gram.y (declaration): Don't pass a string constant
7694 to a function that expects char *, since GCC might complain
7695 about the constant value.
7696 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
7697 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
7698 before #defining them.
7699 * tests/glr-regression.at
7700 (Incorrectly initialized location for empty right-hand side in GLR):
7701 In yyerror, use the msg arg.
7702 (Corrupted semantic options if user action cuts parse):
7703 (Incorrect lookahead during deterministic GLR):
7704 (Incorrect lookahead during nondeterministic GLR):
7705 Don't name a local var 'index'; it shadows string.h's 'index'.
7706
7707 2006-01-19 Akim Demaille <akim@epita.fr>
7708
7709 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
7710 location, not just parts of it.
7711
7712 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
7713
7714 * NEWS: Document the fact that multiple %unions are now allowed.
7715 * doc/bison.texinfo (Union Decl): Likewise.
7716 * TODO: This feature is now implemented, so remove it from
7717 the wishlist.
7718
7719 * Makefile.maint: Merge with coreutils Makefile.maint.
7720 (CVS_LIST): Use build-aux version if available.
7721 (VERSION_REGEXP): New macro.
7722 (syntax-check-rules): Add sc_no_if_have_config_h,
7723 sc_prohibit_assert_without_use, sc_require_config_h,
7724 sc_useless_cpp_parens.
7725 (sc_obsolete_symbols): Check for O_NDELAY.
7726 (sc_dd_max_sym_length): Track coreutils.
7727 (sc_unmarked_diagnostics): Look in all files, not just *.c.
7728 (sc_useless_cpp_parens): New rule.
7729 (news-date-check): Look for version or today's date.
7730 (changelog-check): Don't require version number near head.
7731 (copyright-check): Use current year instead of hardwiring 2005.
7732 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
7733 (announcement): Add --gpg-key-ID.
7734
7735 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
7736 with "file system".
7737
7738 Avoid undefined behavior that addressed just before the start of an
7739 array. Problem reported by twlevo.
7740 * src/reader.c (packgram): Prepend a new sentinel before ritem.
7741 * src/lalr.c (build_relations): Rely on new sentinel.
7742 * src/gram.c (gram_free): Adjust to new sentinel.
7743
7744 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
7745
7746 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
7747 yylookaheadNeeds. All uses updated.
7748 (yysplitStack): Rename local yynewLookaheadStatuses to
7749 yynewLookaheadNeeds.
7750 * data/glr-regression.at (Incorrect lookahead during nondeterministic
7751 GLR): In comments, change `lookahead status' to `lookahead need'.
7752
7753 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7754
7755 * data/glr.c (yysplitStack): A little stylistic rewrite.
7756
7757 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7758
7759 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
7760
7761 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
7762
7763 * doc/bison.texinfo: Fix some typos.
7764 (GLR Semantic Actions): New subsection discussing special
7765 considerations because GLR semantic actions might be deferred.
7766 (Actions): Mention look-ahead usage of yylval.
7767 (Actions and Locations): Mention look-ahead usage of yylloc.
7768 (Special Features for Use in Actions): Add YYEOF entry and mention it
7769 in the yychar entry.
7770 In the yychar entry, remove mention of the local yychar case (pure
7771 parser) since this is irrelevant information when writing semantic
7772 actions and since it's already discussed in `Table of Symbols' where
7773 yychar is otherwise described as an external variable.
7774 In the yychar entry, don't call it the `current' look-ahead since it
7775 isn't when semantic actions are deferred.
7776 In the yychar and yyclearin entries, add note about deferred semantic
7777 actions.
7778 Add yylloc and yylval entries discussing look-ahead usage.
7779 (Look-Ahead Tokens): When discussing yychar, don't call it the
7780 `current' look-ahead, and do mention yylval and yylloc.
7781 (Error Recovery): Cross-reference `Action Features' when mentioning
7782 yyclearin.
7783 (Table of Symbols): In the yychar entry, don't call it the `current'
7784 look-ahead.
7785 In the yylloc and yylval entries, mention look-ahead usage.
7786
7787 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7788
7789 * tests/glr-regression.at: Update copyright year to 2006.
7790
7791 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7792
7793 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
7794 use during nondeterministic operation to track which stacks have
7795 actually needed the current lookahead.
7796 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
7797 Allocate, deallocate, resize, and otherwise shuffle space for
7798 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
7799 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
7800 appropriately during nondeterministic operation.
7801 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
7802 members to store the current lookahead to be used by the deferred
7803 user action.
7804 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
7805 from which the RHS is taken. Set the lookahead members of the new
7806 yySemanticOption according to the lookahead status for stack yyk.
7807 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
7808 yyaddDeferredAction.
7809 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
7810 members of yySemanticOption before invoking yyuserAction, and then set
7811 them back to their current values afterward.
7812 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
7813 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
7814 * tests/glr-regression.at: Remove `.' from the ends of recent test case
7815 titles for consistency.
7816 (Leaked merged semantic value if user action cuts parse): In order to
7817 suppress lint warnings, use arguments in merge function, and assign
7818 char value < 128 in main.
7819 (Incorrect lookahead during deterministic GLR): New test case.
7820 (Incorrect lookahead during nondeterministic GLR): New test case.
7821
7822 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7823
7824 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
7825 !yyvaluep as signal that no semantic value is available to print.
7826 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
7827 to print a semantic value.
7828
7829 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7830
7831 * tests/glr-regression.at: For consistency with my newer test cases,
7832 don't thank myself.
7833
7834 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
7835
7836 * data/glr.c (yyresolveValue): When merging semantic options, if at
7837 least one user action succeeds but a later one cuts the parse, then
7838 destroy the semantic value before returning rather than leaking it.
7839 (yyresolveStates): If a user action cuts the parse and thus
7840 yyresolveValue fails, ignore the (unset) semantic value rather than
7841 corrupting the yyGLRState, and empty the semantic options list since
7842 the user actions should have called all necessary destructors.
7843 Simplify code with YYCHK.
7844 * tests/glr-regression.at (Corrupted semantic options if user action
7845 cuts parse): New test case.
7846 (Undesirable destructors if user action cuts parse): New test case.
7847 Before applying any of this patch, this test case never actually failed
7848 for me... but only because the corrupted semantic options usually
7849 masked this bug.
7850 (Leaked merged semantic value if user action cuts parse): New test
7851 case.
7852
7853 2006-01-05 Akim Demaille <akim@epita.fr>
7854
7855 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
7856
7857 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
7858
7859 * data/c.m4 (b4_c_modern): New macro, with a new provision for
7860 _MSC_VER. Problem reported by Cenzato Marco.
7861 (b4_c_function_def): Use it.
7862 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
7863 b4_c_modern.
7864 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
7865 than rolling our own.
7866
7867 2006-01-04 Akim Demaille <akim@epita.fr>
7868
7869 Also warn about non-used mid-rule values.
7870 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
7871 member.
7872 (symbol_list_new): Adjust.
7873 * src/reader.c (symbol_typed_p): New.
7874 (grammar_rule_check): Use it.
7875 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
7876 Check its rule.
7877 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
7878 Use it.
7879 * tests/actions.at (Exotic Dollars): Adjust.
7880
7881 2006-01-04 Akim Demaille <akim@epita.fr>
7882
7883 * src/reader.c (grammar_midrule_action): If $$ is set in a
7884 mid-rule, move the `used' bit to its lhs.
7885 * tests/input.at (Unused values): New.
7886 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
7887
7888 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
7889
7890 * doc/bison.texinfo (Bison Options): Say more accurately what
7891 --yacc does.
7892 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
7893 about declarations in the grammar when in Yacc mode, as POSIX does
7894 not require a diagnostic when the grammar uses extensions.
7895
7896 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
7897
7898 Warn about dubious constructions like "%token T T".
7899 Reported by twlevo.
7900 * src/symtab.h (struct symbol.declared): New member.
7901 * src/symtab.c (symbol_new): Initialize it to false.
7902 (symbol_class_set): New arg DECLARING, specifying whether
7903 this is a declaration that we want to warn about, if there
7904 is more than one of them. All uses changed.
7905
7906 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
7907 Allow multiple %union directives, whose contents concatenate.
7908 * src/parse-gram.y (grammar_declaration): Likewise.
7909 Use muscle_code_grow, so that we don't need stype_line any more.
7910 All uses changed.
7911
7912 * src/muscle_tab.c (muscle_grow): Fix comment.
7913
7914 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
7915 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
7916 Update copyright year to 2006.
7917
7918 2006-01-03 Akim Demaille <akim@epita.fr>
7919
7920 Have glr.cc pass (some of) the calc.at tests.
7921 * data/glr.cc (b4_parse_param_orig): New.
7922 (b4_parse_param): Improve its definition, and bound it more
7923 clearly in the skeleton.
7924 (b4_epilogue): Append, instead of prepending, in order to keep
7925 #line consistency.
7926 Simplify the generation of auxiliary functions: locations and
7927 purity are mandated.
7928 (b4_global_tokens_and_yystype): Honor it.
7929 * data/location.cc (c++.m4): Don't include it.
7930 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
7931 and AT_SKEL_CC_IF.
7932 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
7933 AT_LALR1_CC_IF.
7934 Be sure to initialize the first position's filename.
7935 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
7936 mandated anyway.
7937 (AT_CHECK_CALC_GLR_CC): New.
7938 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
7939
7940 2006-01-02 Akim Demaille <akim@epita.fr>
7941
7942 * src/output.c (output_skeleton): Don't hard wire the inclusion of
7943 c.m4.
7944 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
7945 * data/glr.cc: Do not include stack.hh.
7946
7947 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
7948
7949 * data/glr.c: Reformat whitespace with tabs.
7950 (b4_lpure_formals): Remove this unused m4 macro.
7951 * tests/cxx-type.at: Reformat whitespace with tabs.
7952 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
7953 since it's a member. Rename type to isNterm for clarity.
7954
7955 2005-12-29 Akim <akim@sulaco.local>
7956
7957 Let glr.cc catch up with symbol_value_print.
7958 * data/glr.cc (b4_yysymprint_generate): Replace by...
7959 (b4_yy_symbol_print_generate): this.
7960 (yy_symbol_print, yy_symbol_value_print): Declare them.
7961
7962 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
7963
7964 * src/location.h (boundary): Note that a line or column equal
7965 to INT_MAX indicates an overflow.
7966 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
7967 (rule_length_overflow, increment_rule_length, add_column_width):
7968 New functions.
7969 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
7970 (<SC_BRACED_CODE>"}"):
7971 Use increment_rule_length rather than incrementing it by hand.
7972 (adjust_location, handle_syncline): Diagnose overflow.
7973 (handle_action_dollar, handle_action_at):
7974 Fix bug with monstrosities like $-2147483648.
7975 Remove now-unnecessary checks.
7976 (scan_integer): Verify assumptions and remove now-unnecessary checks.
7977 (convert_ucn_to_byte): Verify assumptions.
7978 (handle_syncline): New arg LOC. All callers changed.
7979 Don't store through a value derived from char const * pointer.
7980
7981 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
7982 GCC warnings.
7983
7984 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
7985
7986 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
7987 Remove unnecessary forward static decls.
7988
7989 2005-12-27 Akim Demaille <akim@epita.fr>
7990
7991 * src/reader.c (grammar_current_rule_check): Also check that $$
7992 is used.
7993 Take the rule to check as argument, hence rename as...
7994 (grammar_rule_check): this.
7995 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
7996 Rename as...
7997 (grammar_rule_begin, grammar_rule_end): these, for consistency.
7998 (grammar_midrule_action, grammar_symbol_append): Now static.
7999 * tests/torture.at (input): Don't rely on the default action
8000 being always performed.
8001 * tests/calc.at: "Set" $$ even when the action is "cut" with
8002 YYERROR or other.
8003 * tests/actions.at (Exotic Dollars): Instead of using unused
8004 values, check that the warning is issued.
8005
8006 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
8007
8008 * NEWS: Improve wording for unused-value warnings.
8009
8010 2005-12-22 Akim Demaille <akim@epita.fr>
8011
8012 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
8013 (b4_yysymprint_generate): Rename as...
8014 (b4_yy_symbol_print_generate): this.
8015 Generate yy_symbol_print instead of yysymprint.
8016 Generate also yy_symbol_value_print, and use it.
8017
8018 2005-12-22 Akim Demaille <akim@epita.fr>
8019
8020 * NEWS: Warn about unused values.
8021 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
8022 a `used' member.
8023 (symbol_list_n_get, symbol_list_n_used_set): New.
8024 (symbol_list_n_type_name_get): Use symbol_list_n_get.
8025 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
8026 * src/reader.c (grammar_current_rule_check): Check that values are
8027 used.
8028 * src/symtab.c (symbol_print): Accept 0.
8029 * tests/existing.at: Remove the type information.
8030 Empty the actions.
8031 Remove useless actions (beware of mid-rule actions: perl -000
8032 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
8033 * tests/actions.at (Exotic Dollars): Use unused values.
8034 * tests/calc.at: Likewise.
8035 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8036 Likewise.
8037
8038 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
8039 rule_useful_p.
8040
8041 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
8042
8043 Undo 2005-12-01 tentative license wording change. The wording is
8044 still being reviewed by the lawyers, and we don't want to wait for
8045 them before publishing a test release. For now, revert to the
8046 previous wording.
8047 * NEWS: Undo 2005-12-01 change.
8048 * data/glr.c: Revert to previous license wording.
8049 * data/glr.cc: Likewise.
8050 * data/lalr1.cc: Likewise.
8051 * data/location.cc: Likewise.
8052 * data/yacc.c: Likewise.
8053
8054 * NEWS: Reword %destructor vs YYABORT etc.
8055 * data/glr.c: Use American spacing, for consistency.
8056 * data/glr.cc: Likewise.
8057 * data/lalr1.cc: Likewise.
8058 * data/yacc.c: Likewise.
8059 * data/yacc.c: Reformat comments slightly.
8060 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
8061 for consistency. Fix some spelling errors and reword recently-included
8062 text slightly.
8063 * tests/cxx-type.at: Cast results of malloc, for C++.
8064
8065 2005-12-21 Joel E. Denny <address@hidden>
8066
8067 * tests/cxx-type.at: Construct a tree, count the parents of shared
8068 nodes, and free each node once and only once. Previously, the memory
8069 for semantic values was leaked instead.
8070
8071 2005-12-21 Joel E. Denny <address@hidden>
8072
8073 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
8074 (yylval, yylloc): If pure, #define to yystackp->yyval and
8075 yystackp->yyloc similar to yychar and yynerrs.
8076 (yyparse): If pure, remove local yylval and yylloc. Add local
8077 yystackp to accommodate pure definitions of yylval and yylloc.
8078 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
8079 yylvalp and yyllocp to &yylval and &yylloc.
8080 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
8081 namespace. Previously, nerrs and char were missing, but lval and lloc
8082 weren't necessary.
8083 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
8084 yylvalp and yyllocp parameters since, if pure, these are now always
8085 accessible through yystackp. If not pure, they are still accessible
8086 globally.
8087 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
8088 `if (YYID (N))' to pacify lint.
8089
8090 2005-12-21 Akim Demaille <akim@epita.fr>
8091
8092 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
8093 destroy the RHS symbols of a rule.
8094 * data/yacc.c (yylen): Initialize to 0.
8095 Keep its value to the number of items to possibly shift.
8096 In particular, a regular successful parse that ends on YYFINAL by
8097 a (internal) YYACCEPT must not have yylen != 0.
8098 (yyerrorlab, yyreturn): Pop the RHS.
8099 Reorder a bit to emphasize the `shifting' bits of code.
8100 (YYPOPSTACK): Now accept a number of items to pop.
8101 * data/lalr1.cc: Likewise.
8102 * data/glr.c: Formatting changes.
8103 Use goto instead of fall through.
8104 * doc/bison.texinfo (Destructor Decl): Complete.
8105
8106 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8107
8108 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
8109 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
8110 * djgpp/config.bat: Replace every occurence of the file name
8111 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8112 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8113 * djgpp/config.sed: Replace every occurence of the file name
8114 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8115 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8116 * djgpp/djunpack.bat: DJGPP specific file.
8117 * djgpp/fnchange.lst: DJGPP specific file.
8118 * djgpp/README.in: Add new information about how to unpack the bison
8119 source on MSDOS and other systems which have 8.3 file name restrictions
8120 using djunpack.bat and fnchange.lst.
8121
8122 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
8123
8124 * bootstrap (build_cvs_prefix): Remove; unused.
8125 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
8126 when getting gnulib.
8127
8128 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
8129
8130 * data/glr.c: Reorder typedef declarations for structs to match order
8131 of struct declarations.
8132 Rename yystack everywhere to yystackp except in yyparse where it's not
8133 a pointer.
8134 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
8135 consistency.
8136 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
8137 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
8138 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
8139 lint.
8140
8141 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
8142
8143 * tests/sets.at (Accept): Fix typos in regular expression used to
8144 sed out the final state number.
8145
8146 Work around portability problem on Solaris 10: flex-generated
8147 files include <stdio.h> before <config.h>, which messes up
8148 because the latter defines __EXTENSIONS__. Address the problem
8149 by creating two new little files that include <config.h> first,
8150 then include the flex-generated files. Rewrite everyone else
8151 to include <config.h> first, as well.
8152 * lib/timevar.c: Always include "config.h".
8153 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
8154 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
8155 (EXTRA_bison_SOURCES): New macro.
8156 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
8157 * src/system.h: Don't include config.h.
8158 * src/LR0.c: Include <config.h> first.
8159 * src/assoc.c: Likewise.
8160 * src/closure.c: Likewise.
8161 * src/complain.c: Likewise.
8162 * src/conflicts.c: Likewise.
8163 * src/derives.c: Likewise.
8164 * src/files.c: Likewise.
8165 * src/getargs.c: Likewise.
8166 * src/gram.c: Likewise.
8167 * src/lalr.c: Likewise.
8168 * src/location.c: Likewise.
8169 * src/main.c: Likewise.
8170 * src/muscle_tab.c: Likewise.
8171 * src/nullable.c: Likewise.
8172 * src/output.c: Likewise.
8173 * src/parse-gram.y: Likewise.
8174 * src/print.c: Likewise.
8175 * src/print_graph.c: Likewise.
8176 * src/reader.c: Likewise.
8177 * src/reduce.c: Likewise.
8178 * src/relation.c: Likewise.
8179 * src/state.c: Likewise.
8180 * src/symlist.c: Likewise.
8181 * src/symtab.c: Likewise.
8182 * src/tables.c: Likewise.
8183 * src/uniqstr.c: Likewise.
8184 * src/vcg.c: Likewise.
8185
8186 * src/parse-gram.y: Fix minor problems uncovered by lint.
8187 (current_lhs, current_lhs_location): Now static.
8188 (current_assoc): Remove unused variable.
8189
8190 Cleanups so that Bison-generated parsers have less lint.
8191 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
8192 Prepend /*ARGSUSED*/, for lint's sake.
8193 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
8194 definition if 'lint' is defined.
8195 (YYID): New macro (or function, if lint).
8196 All uses of /*CONSTCOND*/0 replaced by YYID(0).
8197 * data/yacc.c: Likewise.
8198 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
8199 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
8200 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
8201 is C++ only.
8202 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
8203 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
8204 Use YYID(0) rather than 0, for lint.
8205 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
8206 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
8207
8208 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
8209
8210 * tests/glr-regression.at
8211 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8212 Close memory leak reported by twlevo.
8213
8214 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
8215
8216 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
8217 all stacks.
8218 (yyparse): Iterate another stack in order to call user destructors.
8219 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8220 New test case.
8221 (Duplicated user destructor for lookahead): This test now is expected
8222 to succeed.
8223
8224 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
8225
8226 * NEWS: Document the following change.
8227 * data/yacc.c: Say "parser skeleton" rather than "file", since
8228 it's no longer just a file.
8229 * data/glr.c: Grant a special exception for C GLR parsers, that
8230 reads like the already-existing exception for C LALR(1) parsers.
8231 * data/glr.cc: Likewise.
8232 * data/lalr1.cc: Likewise.
8233 * data/location.cc: Likewise.
8234 * data/yacc.c: Reword the "written by" statement to clarify that
8235 it was the parser skeleton, not the entire output file.
8236 * data/glr.c: Written by Paul Hilfinger.
8237 * data/glr.cc: Written by Akim Demaille.
8238 * data/lalr1.cc: Likewise.
8239
8240 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
8241
8242 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
8243 Fix typos in previous change that broke 'make check'.
8244 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
8245 supported in C.
8246 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
8247 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
8248 We can revert this once things settle down.
8249
8250 * src/conflicts.c (conflicts_print): Don't print file name twice
8251 when %expect fails because there were no conflicts.
8252 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
8253 change.
8254 * tests/conflicts.at (%expect not enough, %expect too much):
8255 (%expect with reduce conflicts): Adjust to new behavior.
8256
8257 2005-11-18 Akim Demaille <akim@epita.fr>
8258
8259 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
8260 errors.
8261 * NEWS: Document this.
8262 * doc/bison.texinfo (Expect Decl): Likewise.
8263
8264 2005-11-16 Akim Demaille <akim@epita.fr>
8265
8266 Generalize the display of semantic values and locations in traces.
8267 * data/glr.c (yy_reduce_print): Fix indices (again).
8268 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
8269 literal integers.
8270 * data/lalr1.cc (yyreduce_print): Rename as...
8271 (yy_reduce_print): this.
8272 Display values and locations.
8273 * data/yacc.c (yy_reduce_print): Likewise.
8274 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
8275 (yysymprint): Move higher to be visible from yy_reduce_print).
8276 (yyparse): Adjust.
8277 * tests/calc.at: Adjust the expected length of the traces.
8278
8279 2005-11-14 Akim Demaille <akim@epita.fr>
8280
8281 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
8282 from 1 to N, while values and location start at 0.
8283 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
8284
8285 2005-11-14 Akim Demaille <akim@epita.fr>
8286
8287 * data/glr.c (yy_reduce_print): Fix the $ number.
8288
8289 2005-11-14 Akim Demaille <akim@epita.fr>
8290
8291 "Use" parse parameters.
8292 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
8293 * data/glr.c, data/glr.cc: Use them.
8294 * data/glr.c (YYUSE): Have a C++ definition that supports
8295 non-pointer types.
8296
8297 2005-11-14 Akim Demaille <akim@epita.fr>
8298
8299 * data/glr.c (yyexpandGLRStack): Declare only if defined.
8300
8301 2005-11-14 Akim Demaille <akim@epita.fr>
8302
8303 * data/glr.cc: New.
8304 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
8305
8306 2005-11-12 Akim Demaille <akim@epita.fr>
8307
8308 Let position and location be PODs.
8309 * data/location.cc (position::initialize, location::initialize): New.
8310 (position::position, location::location): Define only if
8311 b4_location_constructors is defined.
8312 * data/lalr1.cc (b4_location_constructors): Define it for backward
8313 compatibility.
8314 * doc/bison.texinfo (Initial Action Decl): Use initialize.
8315
8316 2005-11-12 Akim Demaille <akim@epita.fr>
8317
8318 * data/lalr1.cc: Move the body of the ctor and dtor into the
8319 parser file (instead of the header).
8320 Wrap the implementations in a "namespace yy".
8321
8322 2005-11-12 Akim Demaille <akim@epita.fr>
8323
8324 Have glr.c include its header file when created.
8325 * data/glr.c (b4_shared_declarations): New.
8326 Output them verbatim in the parser if !%defines, otherwise
8327 output then in the header file, and include it instead.
8328
8329 2005-11-11 Akim Demaille <akim@epita.fr>
8330
8331 * data/glr.c: Comment changes.
8332
8333 2005-11-11 Akim Demaille <akim@epita.fr>
8334
8335 When yydebug, report semantic and location values for reductions.
8336 * data/glr.c (yy_reduce_print): Report the semantic values and the
8337 locations.
8338 (YY_REDUCE_PRINT): Adjust.
8339 (yyglrReduce): Use them.
8340 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
8341 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
8342 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
8343 traces.
8344
8345 2005-11-10 Akim Demaille <akim@epita.fr>
8346
8347 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
8348 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
8349 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
8350
8351 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
8352
8353 * m4/cxx.m4, examples/Makefile.am: Don't build
8354 examples/calc++ if no C++ compiler is available. (trivial change)
8355
8356 2005-11-09 Akim Demaille <akim@epita.fr>
8357
8358 * src/scan-skel.l: Use a couple of asserts.
8359
8360 2005-11-03 Akim Demaille <akim@epita.fr>
8361
8362 In some (weird) cases, the final state number is incorrect.
8363 Reported by Alexandre Duret-Lutz.
8364 * src/LR0.c (state_list_append): Remove the computation of
8365 final_state.
8366 (save_reductions): Do it here.
8367 (get_state): Alpha conversion.
8368 (generate_states): Use a for loop.
8369 * src/gram.h (item_number_is_rule_number)
8370 (item_number_is_symbol_number): New.
8371 * src/state.c: Use assert.
8372 * src/system.h: Include assert.h.
8373 * tests/sets.at (Accept): New.
8374
8375 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8376
8377 * data/glr.c (yyfill): Adjust comment.
8378 (yyresolveAction): Initialize default location properly
8379 for empty right-hand sides.
8380 (yydoAction): Ditto.
8381 Add comment explaining apparently dead code.
8382 * tests/glr-regression.at
8383 (Incorrectly initialized location for empty right-hand side in GLR):
8384 New test.
8385
8386 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
8387
8388 * bootstrap (cleanup_gnulib): New function. Use it to clean up
8389 gnulib when interrupted. This fixes some race conditions and
8390 works around some portability problems (one noted by Paul
8391 Hilfinger).
8392
8393 2005-10-22 Akim <akim@epita.fr>
8394
8395 * Makefile.cfg: Adjust to config -> build-aux.
8396 Reported by twledo.
8397
8398 2005-10-21 Akim Demaille <akim@epita.fr>
8399
8400 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
8401 the %parse-params.
8402 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
8403 * data/yacc.c (b4_Pure_if): Rename as...
8404 (b4_yacc_pure_if): this.
8405 (YY_SYMBOL_PRINT, yyparse): Adjust.
8406 * doc/bison.texinfo: Formatting changes.
8407
8408 2005-10-21 Akim Demaille <akim@epita.fr>
8409
8410 Finish the transition config -> build-aux.
8411 * configure.ac, Makefile.am: Use build-aux.
8412 * config/prev-version, config/announce-gen, config/Makefile.am:
8413 Move to...
8414 * build-aux/prev-version, build-aux/announce-gen,
8415 * build-aux/Makefile.am: here.
8416
8417 2005-10-14 Akim Demaille <akim@epita.fr>
8418
8419 * examples/calc++/test: Use set -x only when VERBOSE.
8420
8421 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
8422
8423 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
8424 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
8425
8426 2005-10-13 Akim Demaille <akim@epita.fr>
8427
8428 * src/scan-skel.l: Output the base name parts of the parser and
8429 header file names.
8430 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
8431 additional checks.
8432 Use this to exercise C++ outputs in subdirs.
8433 Reported by Oleg Smolsky.
8434
8435 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
8436
8437 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
8438 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
8439 Problem reported by John P. Hartmann.
8440 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
8441 already defined it.
8442
8443 2005-10-12 Akim Demaille <akim@epita.fr>
8444
8445 * src/parse-gram.y (version_check): Exit 63 to please missing
8446 (stands for "version mismatch).
8447 * tests/input.at, doc/bison.texinfo: Adjust.
8448
8449 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
8450
8451 Work around portability problems with Visual Age C compiler
8452 (xlc and xlC_r) reported by John P. Hartmann.
8453 * data/location.cc (initial_column, initial_line): Remove.
8454 All uses replaced by 0 and 1.
8455 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
8456 that xlc complains about.
8457 * src/scan-skel.l (skel_wrap): Likewise.
8458 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
8459 as __STDC__.
8460 * data/yacc.c (YYMODERN_C): New macro, which also looks at
8461 __STDC_VERSION__. Use it everywhere instead of looking at
8462 __STDC__ and __cplusplus.
8463
8464 2005-10-10 Akim Demaille <akim@epita.fr>
8465
8466 * examples/calc++/test: Be quiet unless VERBOSE.
8467
8468 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
8469
8470 * data/c.m4 (yydestruct, yysymprint):
8471 Use YYUSE instead of casting to void.
8472 * data/glr.c (YYUSE): New macro.
8473 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
8474 Use it instead of rolling our own.
8475 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
8476 (YYCHK1):
8477 Use /*CONSTCOND*/ to suppress lint warnings.
8478 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
8479 (YY_STACK_PRINT): Use 'false' not '0'.
8480 (YYUSE): New macro.
8481 (yysymprint_, yydestruct_): Use it instead of rolling our own.
8482 * data/yacc.c (YYUSE): New macro.
8483 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
8484 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
8485 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
8486
8487
8488 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
8489 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
8490
8491 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
8492
8493 Undo the parts of the unlocked-I/O change that substituted
8494 putc or puts for printf. This might hurt performance a bit,
8495 but some people prefer the printf style.
8496 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
8497 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
8498 All uses replaced by YYFPRINTF and YYDPRINTF.
8499 * data/yacc.c: Likewise.
8500 * lib/bitset.c (bitset_print): Likewise.
8501 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
8502 putc and puts.
8503 * lib/lbitset.c (debug_lbitset): Likewise.
8504 * src/closure.c (print_firsts, print_fderives): Likewise.
8505 * src/gram.c (grammar_dump): Likewise.
8506 * src/lalr.c (look_ahead_tokens_print): Likewise.
8507 * src/output.c (escaped_output): Likewise.
8508 (user_actions_output): Break apart two printfs.
8509 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
8510 * src/reduce.c (reduce_print): Likewise.
8511 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
8512 * src/system.h: Include unlocked-io.h rathe than stdio.h.
8513
8514 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
8515 Use assignments rather than casts-to-void to suppress
8516 unused-variable warnings. This pacifies 'lint'.
8517 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
8518 unused-variable warnings.
8519
8520 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8521
8522 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
8523
8524 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
8525
8526 Use unlocked I/O for a minor performance improvement on hosts like
8527 GNU/Linux and Solaris that support unlocked I/O. The basic idea
8528 is to use the gnlib unlocked-io module, and to prefer putc and
8529 puts to printf when either will work (since the latter doesn't
8530 come in an unlocked flavor).
8531 * bootstrap (gnulib_modules): Add unlocked-io.
8532 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
8533 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
8534 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
8535 and similarly for puts and putc and printf.
8536 * data/yacc.c: Likewise.
8537 * lib/bitset.c (bitset_print): Likewise.
8538 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
8539 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
8540 to printf.
8541 * lib/lbitset.c (debug_lbitset): Likewise.
8542 * src/closure.c (print_firsts, print_fderives): Likewise.
8543 * src/gram.c (grammar_dump): Likewise.
8544 * src/lalr.c (look_ahead_tokens_print): Likewise.
8545 * src/output.c (escaped_output): Likewise.
8546 (user_actions_output): Coalesce two printfs.
8547 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
8548 * src/reduce.c (reduce_print): Likewise.
8549 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
8550 * src/system.h: Include unlocked-io.h rather than stdio.h.
8551
8552 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
8553 this confuses xgettext.
8554
8555 2005-10-02 Akim Demaille <akim@epita.fr>
8556
8557 * bootstrap (gnulib_modules): Add strverscmp.
8558 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
8559 * m4/.cvsignore: Add strverscmp.m4.
8560 * src/parse-gram.y (%require): New token, new rule.
8561 (version_check): New.
8562 * src/scan-gram.l (%require): Adjust.
8563 * tests/input.at (AT_REQUIRE): New.
8564 Use it.
8565 * doc/bison.texinfo (Require Decl): New.
8566 (Calc++ Parser): Use %require.
8567
8568 2005-10-02 Akim Demaille <akim@epita.fr>
8569
8570 * data/location.cc: New.
8571
8572 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
8573 Akim Demaille <akim@epita.fr>
8574
8575 Make sure -odir/foo.cc creates dir/location.hh etc.
8576 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
8577 (spec_file_prefix, spec_verbose_file, spec_graph_file)
8578 (spec_defines_file): Now const.
8579 (dir_prefix): New.
8580 (short_base_name): Remove.
8581 * src/files.c: Adjust.
8582 (dirname.h): Include.
8583 (base_name): Don't prototype it.
8584 (finput): Remove, duplicates gram_in.
8585 (full_base_name, short_base_name): Replace by...
8586 (all_but_ext, all_but_tab_ext): these.
8587 (compute_base_names): Rename as...
8588 (compute_file_name_parts): this.
8589 Update to compute the new variables, including dir_prefix.
8590 Adjust dependencies.
8591 * src/output.c (prepare): Output them.
8592 * src/reader.c: Adjust to use gram_in, not finput.
8593 * src/scan-skel.l (@dir_prefix@): New.
8594
8595 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8596
8597 * lib/subpipe.c: New function end_of_output_subpipe() added
8598 to allow support for non-posix systems. This is a no-op function
8599 for posix systems.
8600
8601 * lib/subpipe.h: New function end_of_output_subpipe() added
8602 to allow support for non-posix systems. This is a no-op function
8603 for posix systems.
8604
8605 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
8606 handle the lack of pipe/fork functionality on non-posix systems.
8607
8608 * djgpp/Makefile.maint: DJGPP specific file.
8609
8610 * djgpp/README.in: DJGPP specific file.
8611
8612 * djgpp/config.bat: DJGPP specific configuration file.
8613
8614 * djgpp/config.sed: DJGPP specific configuration file.
8615
8616 * djgpp/config.site: DJGPP specific configuration file.
8617
8618 * djgpp/config_h.sed: DJGPP specific configuration file.
8619
8620 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
8621
8622 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
8623
8624 2005-10-02 Akim Demaille <akim@epita.fr>
8625
8626 * data/location.cc: New, extract from...
8627 * data/lalr1.cc: here.
8628 (location.hh): Include it after the user prologue, in case the
8629 filename type is defined by the user.
8630 Forward declation location and position before the pre-prologue.
8631 (yyresult_): Rename as...
8632 (yyresult): this, it's a local variable, not an attribute.
8633 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
8634
8635 2005-10-01 Akim Demaille <akim@epita.fr>
8636
8637 * examples/extexi: Restore the #line generation.
8638
8639 2005-09-30 Akim Demaille <akim@epita.fr>,
8640 Alexandre Duret-Lutz <adl@gnu.org>
8641
8642 Move the token type and YYSTYPE in the parser class.
8643 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
8644 (parser::token): New, from the moved free definition of tokens.
8645 (parser::semantic_value): Now a full definition instead of an
8646 indirection to YYSTYPE.
8647 (b4_post_prologue): No longer included in the header file, but
8648 in the implementation file.
8649 * doc/bison.texi (C+ Language Interface): Update.
8650 * src/parse-gram.y: Support unary %define.
8651 * tests/actions.at: Define global_tokens_and_yystype for backward
8652 compatibility until we update the tests.
8653 * tests/calc.at: Idem.
8654 (first_line, first_column, last_line, last_column): Define for lalr1.cc
8655 to simplify the code.
8656
8657 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
8658
8659 Port to SunOS 4.1.4, which lacks strtoul and strerror.
8660 Ah, the good old days! Problem reported by Peter Klein.
8661 * bootstrap (gnulib_modules): Add strerror, strtoul.
8662 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
8663 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
8664
8665 2005-09-29 Akim Demaille <akim@epita.fr>
8666
8667 * data/c.m4 (b4_error_verbose_if): New.
8668 * data/lalr1.cc: Use it.
8669 (YYERROR_VERBOSE_IF): Remove.
8670 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
8671 parser members, replaced by...
8672 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
8673 local variables.
8674 (yysyntax_error_): Takes the state number as argument.
8675 (yyreduce_print_): Use the argument yyrule, not the former
8676 attribute yyn_.
8677
8678 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
8679
8680 * bootstrap (gnulib_modules): Add verify.
8681 * lib/.cvsignore: Add verify.h.
8682 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
8683 * src/system.h (verify): Remove.
8684 Include verify.h instead.
8685 * src/tables.c (tables_generate): Use new API for 'verify'.
8686
8687 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
8688
8689 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
8690 local variables whose names begin with 'yy'.
8691 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
8692 Trivial changes from Joel E. Denny.
8693
8694 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
8695 it itself.
8696 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
8697 don't use alloca any more.
8698
8699 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
8700 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
8701 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
8702 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
8703 to match yacc.c, to test more hosts.
8704
8705 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
8706
8707 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
8708 doesn't affect behavior.
8709 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
8710 Solaris, AIX, MSC.
8711 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
8712 This works a bit better with glibc, if user code has already included
8713 stdlib.h.
8714 * doc/bison.texinfo (Bison Parser): Document that users can't
8715 arbitrarily use malloc and free for other purposes. Document
8716 that <alloca.h> and <malloc.h> might be included.
8717 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
8718 user must declare alloca.
8719
8720 * HACKING (release): Forwarn the Translation Project about
8721 stable releses.
8722
8723 2005-09-20 Akim Demaille <akim@epita.fr>
8724
8725 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
8726
8727 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
8728
8729 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
8730 (YYSTACK_ALLOC_MAXIMUM): Use it.
8731 (yysyntax_error): New function.
8732 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
8733 multiple syntax errors are reported, and alloca is being used.
8734 Instead, reallocate buffers twice as big each time, so that
8735 we waste at most half the allocated memory. Start with a small
8736 (128-byte) buffer that will suffice in most cases anyway.
8737 Use yysyntax_error to do most of the work.
8738
8739 * doc/bison.texinfo (Error Reporting, Table of Symbols):
8740 yynerrs is the number of errors reported, not the number of
8741 errors encountered.
8742
8743 * tests/glr-regression.at (Duplicated user destructor for lookahead):
8744 Mark it as expected to fail.
8745 Cast result of malloc; problem reported by twlevo@xs4all.nl.
8746 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
8747 Don't start user-code symbols with "yy", to avoid name space problems.
8748
8749 2005-09-19 Akim Demaille <akim@epita.fr>
8750
8751 Remove the traits, failed experiment.
8752 It never proved useful, and anyway because of the current
8753 definition, it was not possible to have several specialization of
8754 this traits, making it useless.
8755 * data/lalr1.cc (yy:traits): Remove.
8756 Inline its definitions in the parser class.
8757
8758 2005-09-19 Akim Demaille <akim@epita.fr>
8759
8760 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
8761 least Mac OSX with a /usr/local install of gettext.
8762
8763 2005-09-19 Akim Demaille <akim@epita.fr>
8764
8765 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
8766 and yytoken for similarity with the other skeletons.
8767
8768 2005-09-19 Akim Demaille <akim@epita.fr>
8769
8770 * NEWS, configure.ac: update version number to 2.1a.
8771
8772 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
8773
8774 * NEWS: Version 2.1.
8775
8776 * NEWS: Remove notice of yytname change, since it was never in an
8777 official release.
8778 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
8779 diagnostic.
8780 * src/output.c (prepare): Likewise.
8781 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
8782 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
8783 is not defined. This is an awful hack, but it's enough for now.
8784 All callers changed.
8785 * tests/glr-regression-at (make_value): Args are const pointers now,
8786 to avoid GCC warning.
8787 (Duplicated user destructor for lookahead): New test. Currently
8788 skipped. It fails on my host but I'm not sure it'll always fail.
8789
8790 2005-09-16 Akim Demaille <akim@epita.fr>
8791
8792 * src/symtab.h (struct symbol): Declare the printer and destructor
8793 as const, to avoid accidental calls to free.
8794 (symbol_destructor_set, symbol_printer_set): Adjust.
8795 * src/symtab.c: Adjust.
8796
8797 2005-09-16 Akim Demaille <akim@epita.fr>
8798
8799 * data/c.m4 (b4_token_enums): New.
8800 (b4_token_defines): Rename as...
8801 (b4_token_enums_defines): this.
8802 (b4_token_defines): New, output only the #defines.
8803 * data/yacc.c, data/glr.c: Adjust.
8804 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
8805 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
8806 as default values.
8807
8808 2005-09-16 Akim Demaille <akim@epita.fr>
8809
8810 * data/lalr1.cc (yylex_): Remove, inline its code.
8811 (yyreport_syntax_error_): Remove, replaced by...
8812 (yysyntax_error_): this which returns a string and leaves to the
8813 caller the call to the users' error function.
8814 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
8815 Move from members of the parser object...
8816 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
8817 to local variables of the parse function.
8818
8819 2005-09-16 Akim Demaille <akim@epita.fr>
8820
8821 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
8822 since it's in Bison's name space.
8823
8824 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
8825
8826 * data/glr.c (yyresolveValue): Add default case to pacify
8827 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
8828
8829 * NEWS: Document when yyparse started to return 2.
8830 * doc/bison.texinfo (Parser Function): Document when yyparse
8831 returns 2.
8832
8833 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
8834 (b4_filename_type): Renamed back from b4_file_name_type. All uses
8835 changed.
8836 (class position): file_name -> filename (reverting). All uses changed.
8837
8838 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
8839
8840 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
8841 do anything if $@ exists. This reverts part of the 2005-07-07
8842 patch.
8843
8844 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
8845
8846 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
8847 contains obsolete information and isn't worth distributing as a
8848 separate file anyway.
8849 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
8850 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
8851 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
8852 (yyparse): Abort if user code uses longjmp to throw an unexpected
8853 value.
8854
8855 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
8856
8857 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
8858 Suggested by twlevo@xs4all.nl.
8859
8860 * data/glr.c (YYCHK1): Do not assume YYE is in range.
8861 This avoids a diagnostic from gcc -Wswitch-enum.
8862 Problem reported by twlevo@xs4all.nl.
8863
8864 * doc/bison.texinfo: Don't use "filename", as per GNU coding
8865 standards. Use "file name" or "file" or "name", depending on
8866 the context.
8867 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
8868 not to hack/foo.tab.c.
8869 (Calc++ Top Level): 2nd arg of main is not const.
8870 * data/glr.c: b4_filename -> b4_file_name.
8871 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
8872 All uses changed.
8873 (class position): filename -> file_name. All uses changed.
8874 * data/yacc.c: b4_filename -> b4_file_name.
8875 * lib/bitset.h: filename -> file_name in local vars.
8876 * lib/bitset_stats.c: Likewise.
8877 * src/files.c: Likewise.
8878 * src/scan-skel.l ("@output ".*\n): Likewise.
8879 * src/files.c (file_name_split): Renamed from filename_split.
8880 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
8881
8882 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
8883
8884 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
8885 to accommodate latest gnulib.
8886
8887 * tests/glr-regression.at (Duplicate representation of merged trees):
8888 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
8889
8890 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
8891 needed.
8892
8893 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
8894
8895 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
8896 All uses changed. Invoke user destructor after an error during a
8897 split parse (trivial change from Joel E. Denny).
8898
8899 * tests/glr-regression.at
8900 (User destructor after an error during a split parse): New test case.
8901 Problem reported by Joel E. Denny in:
8902 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
8903
8904 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
8905
8906 * README-cvs: Give URLs for recommended tools.
8907 Mention Gzip version problem, and bootstrapping issues.
8908 Remove troubleshooting section, as it's somewhat obsolete.
8909
8910 * bootstrap (no_cache): New var, to accommodate different wget
8911 variants. Use it instead of '-C off'. Problem reported by
8912 twlevo@xs4all.nl.
8913
8914 * data/glr.c (yydestroyStackItem): New function.
8915 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
8916 debugging information. Problem reported by Joel E. Denny.
8917
8918 2005-08-25 Akim Demaille <akim@epita.fr>
8919
8920 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
8921
8922 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
8923
8924 * data/glr.c (yyrecoverSyntaxError, yyreturn):
8925 Don't invoke destructor on unresolved entries.
8926 * tests/glr-regression.at
8927 (User destructor for unresolved GLR semantic value): New test case.
8928 Problem reported by Joel E. Denny in:
8929 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
8930
8931 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
8932
8933 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
8934 Add strnlen.c.
8935 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
8936 lib-prefix.m4, po.m4.
8937
8938 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
8939 in yydestruct diagnostic, since it might not be an error.
8940 Problem reported by Joel Denny near end of
8941 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
8942 * data/lalr1.cc (yyerturn): Likewise.
8943 * data/yacc.c (yyreturn): Likewise.
8944 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
8945
8946 * src/files.c: Remove obsolete FIXME comment.
8947
8948 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
8949 with the other templates, and to fix bogus run-on messages such
8950 as the one reported at the end of
8951 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
8952 All callers changed to avoid the newline.
8953 (yyprocessOneStack): Output two lines rather than one, to accommodate
8954 the above change. This changes the debug output format slightly.
8955
8956 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
8957 reported by Joel E. Denny in
8958 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
8959 (trivial change).
8960 * tests/glr-regression.at (Duplicate representation of merged trees):
8961 New test, from Joel E. Denny in:
8962 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
8963 * THANKS: Add Joel E. Denny.
8964
8965 * configure.ac (AC_INIT): Bump to 2.0c.
8966
8967 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
8968
8969 * NEWS: Version 2.0b.
8970
8971 * Makefile.am (SUBDIRS): Put examples before tests, so that
8972 "make check" doesn't finish with "All 1 tests passed".
8973
8974 * tests/regression.at (Token definitions): Don't rely on
8975 AT_PARSER_CHECK for data that contains backslashes. It currently
8976 uses 'echo', and 'echo' isn't portable if its argument contains
8977 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
8978 that the byte '\0xff' is not printable in the C locale; it is,
8979 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
8980 not printable, so use '\0x81' to test.
8981
8982 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
8983 version of GCC, since the macro is used with non-GCC compilers.
8984
8985 Fix core dump reported by Pablo De Napoli in
8986 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
8987 * tests/regression.at (Invalid inputs with {}): New test.
8988 * src/parse-gram.y (token_name): Translate type before using
8989 it as an index.
8990
8991 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
8992 the user's name space. All uses changed to __attribute__
8993 ((__unused__)).
8994 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
8995 Add __attribute__ ((__noreturn__)).
8996
8997 * etc/clcommit: Remove. We weren't using it, and it failed
8998 "make maintainer-distcheck".
8999 * Makefile.maint: Merge from coreutils.
9000 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
9001 (syntax-check-rules): Change list of rules as described below.
9002 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
9003 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
9004 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
9005 (sc_trailing_space): New rules.
9006 (sc_xalloc_h_in_src): Remove.
9007 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
9008 (sc_space_tab, sc_error_exit_success, sc_changelog):
9009 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
9010 (makefile-check, po-check, author_mark_check):
9011 (makefile_path_separator_check, copyright-check):
9012 Use grep -n, to make it easier to find violations.
9013 Use CVS_LIST and CVS_LIST_EXCEPT.
9014 (header_regexp, h_re): Remove.
9015 (dd_c): New macro.
9016 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
9017 (my-distcheck): Use more-modern GCC flags.
9018 (signatures, %.asc): Remove.
9019 (rel-files, announcement): Remove signatures.
9020 Restore old updating code, even though we don't use it, so
9021 that we're the same as coreutils.
9022 (alpha, beta, major): Depend on news-date-check.
9023 Make the upload commands.
9024
9025 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
9026 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
9027 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
9028 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
9029 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
9030 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
9031 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
9032 * tests/sets.at: Likewise.
9033
9034 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
9035 we comment out the Autoconf version number.
9036 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
9037 it's error-prone and "make maintainer-distcheck" rejects it.
9038
9039 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
9040 Indent calls to "error" to pacify "make maintainer-distcheck",
9041 when the calls are not intended to be translated.
9042 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
9043
9044 * src/Makefile.am (DEFS): Use +=, to pacify
9045 "make maintainer-distcheck".
9046 (bison_SOURCES): Add scan-skel.h.
9047 (sc_tight_scope): New rule, from coreutils.
9048
9049 * src/files.c (src_extension, header_extension):
9050 Now static, not extern.
9051 * src/getargs.c (short_options): Likewise.
9052 * src/muscle_tab.c (muscle_table): Likewise.
9053 * src/parse-gram.y (current_class, current_type, current_prec):
9054 Likewise.
9055 * src/reader.c (grammar_end, previous_rule_end): Likewise.
9056 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
9057 * src/main.c (main): Cast bindtextdomain and textdomain calls to
9058 void, to avoid warning when NLS is disabled.
9059 * src/output.c: Include scan-skel.h.
9060 (scan_skel): Remove decl, since scan-skel.h does this.
9061 (output_skeleton):
9062 Indent calls to "error" to pacify "make maintainer-distcheck".
9063 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
9064 * src/reader.h (gram_end, gram_lineno): New decls to pacify
9065 "make maintainer-distcheck".
9066 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
9067 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
9068 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
9069 (skel_lex_destroy, scan_skel): Move these decls to...
9070 * src/scan-skel.h: New file.
9071 * src/uniqstr.c (uniqstr_assert):
9072 Indent calls to "error" to pacify "make maintainer-distcheck".
9073
9074 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
9075 not @VAR@.
9076
9077 * tests/torture.at: Revamp to avoid misuse of atoi that
9078 "make maintainer-distcheck" complained about.
9079
9080 * examples/extexi (message): Don't print a message more than once,
9081 and omit line-number decoration that makes Emacs compile think
9082 that informative messages are worth worrying about.
9083
9084 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
9085
9086 * configure.ac: Update version number.
9087
9088 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
9089 accidentally.
9090 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
9091 autogenerated by the maintainer.
9092 * examples/calc++/.cvsignore: Add *.yy.
9093
9094 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
9095 * lib/bitset_stats.c (bitset_stats_init): Likewise.
9096 * lib/bitsetv.c (bitsetv_alloc): Likewise.
9097
9098 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
9099
9100 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
9101 from maintainer-distcheck about casting the argument of 'free'.
9102
9103 * NEWS: Mention recent yytname changes.
9104 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
9105
9106 * bootstrap: For translations that have not yet been upgraded to
9107 the new runtime-po domain, prime the pump by extracting the
9108 relevant strings from the obsolete translations. This code can be
9109 removed once the bison-runtime domain has been translated by each
9110 team.
9111
9112 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
9113 now that token names are already quoted.
9114
9115 Fix problem reported by Anthony Heading.
9116 * data/glr.c (YYTOKEN_TABLE): New macro.
9117 (yytname): Define if YYTOKEN_TABLE.
9118 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
9119 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
9120 (YYERROR_VERBOSE): Define the same way the other skeletons do.
9121 * src/output.c (prepare_symbols): Output token_table_flag.
9122
9123 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
9124
9125 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
9126 again if the first call fails.
9127
9128 * data/glr.c (yytnamerr): New function.
9129 (yyreportSyntaxError): Use it to dequote most string literals.
9130 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
9131 with other skeletons. All uses changed.
9132 (yytnameerr_): New function.
9133 (yyreport_syntax_error): Use it to dequote most string literals.
9134 * data/yacc.c (yytnamerr): New function.
9135 (yyerrlab): Use it to decode most string literals.
9136 * doc/bison.texinfo (Decl Summary, Calling Convention):
9137 Clarify quoting convention of yytname.
9138 * src/output.c (prepare_symbols): Quote all names. This undoes
9139 the 2005-04-17 change, which is now accomplished (mostly) via
9140 changes in the parsers as described above.
9141 * tests/regression.at (Token definitions, Web2c Actions):
9142 Undo most 2005-04-17 change here, too.
9143
9144 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
9145
9146 Fix more problems reported by twlevo@xs4all.nl.
9147 * tests/cxx-type.at: Don't pipe output of ./types through sed to
9148 remove trailing spaces. This loses the exit status of ./types,
9149 and isn't needed since ./types shouldn't be emitting trailing
9150 spaces.
9151 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
9152 as the stack isn't valid in that case.
9153
9154 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
9155 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
9156 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
9157 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
9158 is used.
9159 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
9160 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
9161 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
9162 Likewise.
9163
9164 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
9165 overly-picky compilers that reject 'char *foo = "bar";'.
9166
9167 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
9168 to FILE * parameter, not to stderr. This fixes a typo introduced
9169 in the 2005-07-12 change.
9170
9171 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
9172 warnings from GCC 4.
9173
9174 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
9175 (yyglrShiftDefer, yysplitStack):
9176 Remove unused parameters b4_pure_formals. All uses changed.
9177 (yyglrShift): Remove unused parameters b4_user_formals.
9178 All uses changed.
9179 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
9180
9181 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
9182
9183 Destructor cleanups and regularization among the three skeletons.
9184 * NEWS: Document the behavior changes.
9185 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
9186 stack before failing, as the cleanup code will do it for us now.
9187 * data/lalr1.cc (yyerrlab): Likewise.
9188 * data/glr.c (yyparse): Pop everything off the stack before
9189 freeing it, so that destructors get called properly.
9190 * data/lalr1.cc (yyreturn): Likewise.
9191 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
9192 This is more consistent.
9193 * doc/bison.texinfo (Destructor Decl): Mention more reasons
9194 why destructors might be called. 1.875 -> 2.1.
9195 (Destructor Decl, Decl Summary, Table of Symbols):
9196 Some English-language cleanups for %destructor.
9197 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
9198 Add output line for destructor of start symbol.
9199 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
9200 because of that same extra output line.
9201
9202 * NEWS: Document minor wording changes in diagnostics of
9203 Bison-generated parsers.
9204 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
9205 Remove unused formals. All uses changed.
9206 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
9207 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
9208 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
9209 Rename yyoverflowab to yyexhaustedlab.
9210 When memory exhaustion occurs during syntax-error reporting,
9211 report it separately rather than in a single diagnostic; this
9212 eases translation.
9213 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
9214 (Memory Exhausted): Renamed from Parser Stack Overflow.
9215 Revamp wording slightly to prefer "memory exhaustion".
9216 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
9217
9218 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
9219
9220 Add i18n support to the GLR skeleton. Partially fix the C++
9221 skeleton; a C++ expert needs to finish this. Remove debugging
9222 msgids; there's little point to having them translated, since they
9223 can be understood only by someone who can read the
9224 (English-language) source code.
9225
9226 Generate runtime-po/bison-runtime.pot automatically, so that we
9227 don't have to worry about garbage getting in that file. We'll
9228 make sure after the next official release that old msgids don't
9229 get lost. See
9230 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
9231
9232 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
9233 Now auto-generated.
9234 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
9235 Fix typos in explanations of the runtime file.
9236 * bootstrap: Change gettext keyword from YYI18N to YY_.
9237 Use standard Makefile.in.in in runtime-po, since we'll arrange
9238 for backward-compatible bison-runtime.po files in a different way.
9239 * data/glr.c (YY_): New macro, from yacc.c.
9240 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
9241 Translate messages intended for users.
9242 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
9243 the wording in the other skeletons. We don't know that the memory
9244 is virtual.
9245 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
9246 Use same method that yacc.c uses.
9247 Don't translate debugging messages.
9248 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
9249 it doesn't work (yet), and requires C++ expertise to fix.
9250 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
9251 Move defn to a more logical place, to be consistent with other
9252 skeletons.
9253 Don't translate debugging messages.
9254 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
9255 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
9256 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
9257 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
9258
9259 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
9260 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
9261 void, not int.
9262 * tests/glr-regression.at (Badly Collapsed GLR States):
9263 Likewise.
9264 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
9265 yylex should return 0 at EOF rather than aborting.
9266
9267 Improve tests for stack overflow in GLR parser.
9268 Problem reported by twlevo@xs4all.nl.
9269 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
9270 All uses removed.
9271 (yyStackOverflow): Just longjmp, but with value 2 so that caller
9272 can handle the problem.
9273 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
9274 (yyparse): New local variable yyresult to record the result.
9275 Use result of setjmp to set it, rather than storing itinto
9276 struct.
9277 (yyDone): Remove label.
9278 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
9279 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
9280 if YYABORT is used).
9281 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
9282 yyparse status; put status > 1 into diagnostic.
9283 Check that status==2 works.
9284 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
9285 Use exit status 3 for failure to open (which shouldn't happen).
9286
9287 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
9288
9289 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
9290 1 on syntax error; just let yyparse do its thing.
9291 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
9292 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
9293 (Exploding the Stack Size with Alloca):
9294 (Exploding the Stack Size with Malloc):
9295 Expect exit status 2, not 1, since the parser is supposed to blow
9296 its stack. Problem reported by twlevo@xs4all.nl.
9297
9298 * data/glr.c (yyparse): Don't assume that the initial calls
9299 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
9300 Print a stack-overflow message and fail instead.
9301 Initialize the line-number information before creating the stack,
9302 so that the stack-overflow message can report line zero safely.
9303
9304 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
9305
9306 Fix problems reported by twlevo@xs4all.nl.
9307 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
9308 (yyuserMerge): Provide a default case if b4_mergers is empty.
9309 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
9310 * tests/glr-regression.at
9311 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
9312 Add casts to pacify C++ compilers.
9313 * tests/glr-regression.at (Improper merging of GLR delayed action
9314 sets): Declare yylex before using it.
9315 * tests/Makefile.am (maintainer-check-g++): Fix a stray
9316 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
9317 test for valgrind; valgrind is independent of g++.
9318 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
9319 for compatibility with POSIX 1003.1-2001 (if running coreutils).
9320 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
9321 Use a destructor, so that we can expand the stack. Change
9322 YYSTYPE to char * so that we can free it. Cast result of malloc.
9323
9324 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
9325
9326 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
9327 a valgrind failure. Problem reported by twlevo@xs4all.nl.
9328
9329 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
9330
9331 * PACKAGING: New file, suggested by Bruno Haible and taken from
9332 similar wording in gettext's PACKAGING file.
9333 * NEWS: Mention PACKAGING.
9334 * Makefile.am (EXTRA_DIST): Add PACKAGING.
9335
9336 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
9337
9338 * NEWS: Document recent i18n improvements.
9339 * bootstrap: Get runtime translations into runtime-po.
9340 Create runtime-po files automatically, if possible.
9341 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
9342 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
9343 does not infringe on the user's name space.
9344 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
9345 * doc/bison.texinfo (Internationalization): Revamp the English
9346 and Texinfo syntax a bit, to try to make it clearer.
9347 (Bison Options, Option Cross Key): Mention --print-localedir.
9348 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
9349 YYENABLE_NLS. Quote a bit more.
9350 * runtime-po/.cvsignore: New file.
9351 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
9352 * runtime-po/Rules-quot: Remove; now created by bootstrap.
9353 * runtime-po/quot.sed: Likewise.
9354 * runtime-po/boldquot.sed: Likewise.
9355 * runtime-po/en@quot.header: Likewise.
9356 * runtime-po/en@boldquot.header: Likewise.
9357 * runtime-po/insert-header.sin: Likewise.
9358 * runtime-po/remove-potcdate.sin: Likewise.
9359 * runtime-po/Makevars: Likewise.
9360 * runtime-po/LINGUAS: Likewise.
9361 * runtime-po/de.po: Likewise; we will rely on the translation project
9362 to maintain this, so "bootstrap" should get it.
9363 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
9364 its value.
9365 * src/main.c (main): Bind the bison-runtime domain, too.
9366
9367 2005-07-12 Bruno Haible <bruno@clisp.org>
9368
9369 * data/yacc.c: Include <libintl.h> when NLS is enabled.
9370 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
9371 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
9372 * runtime-po: New directory.
9373 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
9374 $(DOMAIN).pot-update rule, so that old messages are never dropped.
9375 * runtime-po/Rules-quot: New file, copied from po/.
9376 * runtime-po/quot.sed: Likewise.
9377 * runtime-po/boldquot.sed: Likewise.
9378 * runtime-po/en@quot.header: Likewise.
9379 * runtime-po/en@boldquot.header: Likewise.
9380 * runtime-po/insert-header.sin: Likewise.
9381 * runtime-po/remove-potcdate.sin: Likewise.
9382 * runtime-po/Makevars: New file.
9383 * runtime-po/POTFILES.in: New file.
9384 * runtime-po/LINGUAS: New file.
9385 * runtime-po/bison-runtime.pot: New file.
9386 * runtime-po/de.po: New file.
9387 * m4/bison.m4: New file.
9388 * Makefile.am (SUBDIRS): Add runtime-po.
9389 (aclocaldir, aclocal_DATA): New variables.
9390 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
9391 Define aclocaldir.
9392 * src/getargs.c (usage): Document --print-localedir option.
9393 (PRINT_LOCALEDIR_OPTION): New enum item.
9394 (long_options): Add --print-localedir option.
9395 (getargs): Handle --print-localedir option.
9396 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
9397 (Internationalization): New section.
9398
9399 2005-07-12 Akim Demaille <akim@epita.fr>
9400
9401 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
9402 for consistency with the rest of the code.
9403 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
9404 Add separators.
9405
9406 2005-07-12 Akim Demaille <akim@epita.fr>
9407
9408 * src/parse-gram.y: Use %printer instead of YYPRINT.
9409
9410 2005-07-12 Akim Demaille <akim@epita.fr>
9411
9412 * src/symtab.h, src/symtab.c (symbol_print): New.
9413 * src/symlist.h, src/symlist.c (symbol_list_print): New.
9414 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
9415
9416 2005-07-12 Akim Demaille <akim@epita.fr>
9417
9418 * data/glr.c (b4_syncline): Fix (swap) the definitions of
9419 b4_at_dollar and b4_dollar_dollar.
9420
9421 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
9422
9423 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
9424 and Pennello's paper.
9425
9426 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
9427
9428 * data/yacc.c (yyparse): Undo previous patch. Instead,
9429 set yylsp[0] and yyvsp[0] only if the initial action
9430 sets yylloc and yylval, respectively.
9431
9432 * data/yacc.c (yyparse): In the initial action, set
9433 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
9434 This avoids the use of undefined variables if the initial
9435 action does not set yylloc and/or yylval.
9436
9437 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
9438
9439 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
9440 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
9441 Remove from CVS. These files are automatically generated.
9442 * examples/extexi: Clarify that this file is now part of Bison,
9443 not GNU M4, and that it works with any POSIX-compatible Awk.
9444 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
9445 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
9446 so that we also get calc++-parser.yy. Geneate it.
9447 Use $(AWK), not gawk, since any conforming Awk will do.
9448 Put comment before action, since older 'make' can't handle comment
9449 in action.
9450 $(BUILT_SOURCES): List all built sources, not just some of them.
9451 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
9452 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
9453 $($(calc_sources_generated)): Remove unnecessary test for existence
9454 of target. (This had a shell syntax error anyway; a stray "x".)
9455 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
9456 calc++-parser.yy.
9457 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
9458
9459 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
9460 implied by the other modules.
9461
9462 2005-07-06 Akim Demaille <akim@epita.fr>
9463
9464 Bind examples/calc++ to the package.
9465 * examples/calc++/Makefile: Remove, replaced by...
9466 * examples/calc++/Makefile.am: ... this new file.
9467 * examples/calc++/test: Remove input.
9468 * examples/calc++/compile: Remove.
9469 * examples/Makefile.am: New.
9470 * configure.ac, Makefile.am: Adjust.
9471 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
9472
9473 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
9474
9475 * data/glr.c (yyFail): Drastically simplify; since the format argument
9476 never had any % directives, we can simply pass it to yyerror.
9477 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
9478 be modified later, as that is the usual style in glr.c.
9479 Problems reported by Paul Hilfinger.
9480
9481 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
9482 and size overflow errors.
9483 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
9484 in case the user prolog sets feature-test macros like _GNU_SOURCE.
9485 (YYSIZEMAX): New macro.
9486 (yystpcpy): New function, taken from yacc.c.
9487 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
9488 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
9489 so that we don't have to maintain their signatures.
9490 (yyFail): Check for buffer overflow, by using vsnprintf rather
9491 than vsprintf. Allocate a bigger buffer if possible.
9492 Report an error if buffer allocation fails.
9493 (yyStackOverflow): New function.
9494 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
9495 the initialization was successful. It might fail if storage was
9496 exhausted.
9497 (yyexpandGLRStack): Add more checks for storage allocation failure.
9498 Use yyStackOverflow to report failures.
9499 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
9500 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
9501 Don't assume stack number fits in int.
9502 (yysplitStack): Check for storage allocation failure.
9503 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
9504 can print diagnostics on storage allocation failure. All callers
9505 changed.
9506 (yyresolveValue): Use yybool for boolean.
9507 (yyreportSyntaxError): Check for size-calculation overflow.
9508 This code is taken from yacc.c.
9509 (yyparse): Check for storage allocation errors when allocating
9510 the initial stack.
9511
9512 2005-07-05 Akim Demaille <akim@epita.fr>
9513
9514 Extract calc++ from the documentation.
9515 * doc/bison.texinfo (Calc++): Add the extraction marks.
9516 * examples/extexi: New, from the aborted GNU Programming 2E.
9517 Separate the different paragraph of a file with empty lines.
9518 * examples/Makefile: Use it to extract the whole calc++ example.
9519
9520 2005-06-24 Akim Demaille <akim@epita.fr>
9521
9522 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
9523 class typedefs.
9524
9525 2005-06-22 Akim Demaille <akim@epita.fr>
9526
9527 * doc/bison.texinfo (C++ Language Interface): First stab.
9528 (C++ Parsers): Remove.
9529
9530 2005-06-22 Akim Demaille <akim@epita.fr>
9531
9532 * data/lalr1.cc (yylex_): Honor %lex-param.
9533
9534 2005-06-22 Akim Demaille <akim@epita.fr>
9535
9536 Start a set of simple examples.
9537 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
9538 * examples/calc++/calc++-driver.hh,
9539 * examples/calc++/calc++-parser.yy,
9540 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
9541 * examples/calc++/compile, examples/calc++/test: New.
9542
9543 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
9544
9545 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
9546 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
9547 which stems from the 2005-05-27 patch.
9548
9549 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
9550
9551 * data/glr.c: Modify treatment of unused parameters to permit use
9552 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
9553
9554 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
9555
9556 Fix infringement on user name space reported by Janos Zoltan Szabo.
9557 * data/yacc.c (yyparse): strlen -> yystrlen.
9558
9559 2005-05-30 Akim Demaille <akim@epita.fr>
9560
9561 * data/lalr1.cc (_): New.
9562 Translate the various messages.
9563
9564 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
9565
9566 Fix infringement on user name space reported by Bruno Haible.
9567 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
9568 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
9569 the user's name space.
9570 (alloca): Include <stdlib.h> to get it, if it's not built in.
9571 (YYMALLOC, YYFREE): Define only if needed.
9572 (malloc, free): Declare, but only if needed, as this infringes on
9573 the user name space.
9574
9575 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
9576
9577 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
9578 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
9579 with %d format.
9580 * lib/ebitset.c (min, max): Undef before defining.
9581 * lib/vbitset.c (min, max): Likewise.
9582 * lib/subpipe.c (create_subpipe): Save local variables in case
9583 vfork clobbers them.
9584
9585 2005-05-24 Bruno Haible <bruno@clisp.org>
9586
9587 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
9588 error message syntax used by gcc-4.0.
9589
9590 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
9591
9592 * README: Mention m4 1.4.3. Remove obsolete advice about
9593 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
9594
9595 * bootstrap: Remove workaround for problem I encountered with
9596 gettext 0.14.1; it seems to be fixed now.
9597
9598 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
9599
9600 * NEWS: Version 2.0a.
9601
9602 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
9603 the previous change.
9604
9605 Various maintainer cleanups.
9606 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
9607 conftest*, for benefit of CVS commands run at the same time as
9608 "configure". Add build-aux, since "bootstrap" now creates it and
9609 its subfiles.
9610 * Makefile.cfg (move_if_change): Remove.
9611 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
9612 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
9613 (po_repo, do-po-update, po-update, wget_files, get-targets):
9614 (config.guess-url_prefix, config.sub-url_prefix):
9615 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
9616 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
9617 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
9618 Remove.
9619 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
9620 this is now the recommended name.
9621 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
9622 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
9623 ylwrap. These files now go into build-aux.
9624 * config/move-if-change: Remove.
9625 * config/prev-version.txt: Bump from 1.75 to 2.0.
9626
9627 * bootstrap: Add stdio-safer, unistd-safer modules.
9628 Remove m4/glibc2.m4 (introduced by latest gnulib, but
9629 we don't need it).
9630 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
9631 fopen-safer.c, stdio-safer.h, unistd-safer.h.
9632 * lib/subpipe.c: Include "unistd-safer.h".
9633 (create_subpipe): Make sure all the newly-created
9634 file descriptors are > 2, so that diagnostics don't
9635 get sent down them (which might cause Bison to hang, in theory).
9636 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
9637 * src/files.c (xfopen): Use fopen_safer, not fopen.
9638
9639 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
9640 yesterday's yacc.c fix.
9641
9642 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
9643
9644 * data/glr.c, data/lalr1.cc: Update copyright date.
9645
9646 Fix a destructor bug reported by Wolfgang Spraul in
9647 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
9648 * data/yacc.c (yyabortlab): Don't call destructor, and
9649 don't set yychar to EMPTY.
9650 (yyoverflowlab): Don't call destructor.
9651 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
9652 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
9653 since we no longer output the message "discarding lookahead token
9654 end of input ()".
9655
9656 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
9657
9658 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
9659 fix a small glitch in debugging output.
9660 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
9661 after YY_SYMBOL_PRINT where needed.
9662
9663 (struct yyGLRState): Add some comments.
9664 (struct yySemanticOption): Add some comments.
9665 (union yyGLRStackItem): Add comment.
9666
9667 (yymergeOptionSets): Correct this to properly perform the union,
9668 avoiding infinite reported by Michael Rosien.
9669 Update comment.
9670
9671 * tests/glr-regression.at: Add test for GLR merging error reported
9672 by M. Rosien.
9673
9674 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
9675
9676 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
9677 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
9678 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
9679 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
9680 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
9681 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
9682 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
9683 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
9684 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
9685 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
9686 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
9687 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
9688 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
9689 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
9690 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
9691 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
9692 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
9693 src/derives.h, src/files.c, src/files.h, src/getargs.c,
9694 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
9695 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
9696 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
9697 src/output.h, src/parse-gram.c, src/parse-gram.h,
9698 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
9699 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
9700 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
9701 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
9702 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
9703 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
9704 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
9705 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
9706 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
9707 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
9708 tests/reduce.at, tests/regression.at, tests/sets.at,
9709 tests/synclines.at, tests/testsuite.at, tests/torture.at:
9710 Update FSF postal mail address.
9711
9712 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
9713
9714 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
9715 Problem reported by Ralf Menzel.
9716
9717 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
9718
9719 * tests/actions.at: Test that stack overflow invokes destructors.
9720 From Marcus Holland-Moritz.
9721 * data/yacc.c (yyerrlab): Move the code that destroys the stack
9722 from here....
9723 (yyreturn): to here. That way, destructors are called properly
9724 even if the stack overflows, or the user calls YYACCEPT or
9725 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
9726 (yyoverflowlab): Destroy the lookahead.
9727
9728 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
9729
9730 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
9731
9732 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
9733
9734 * NEWS: Bison-generated C parsers no longer quote literal strings
9735 associated with tokens.
9736 * src/output.c (prepare_symbols): Don't escape strings,
9737 since users don't want to see C escapes.
9738 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
9739 in diagnostics.
9740 * tests/input.at (Torturing the Scanner): Likewise.
9741 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
9742
9743 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
9744
9745 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
9746 the data size is known to be too small and we can't increase it.
9747 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
9748
9749 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
9750
9751 * src/parse-gram.y: Include quotearg.h.
9752 (string_as_id): Quote $1 before using it as a key, since the
9753 lexer no longer quotes it for us.
9754 (string_content): Don't strip quotes, since lexer no longer
9755 quotes it for us.
9756 * src/scan-gram.l: Include quotearg.h.
9757 ("\""): Omit quote.
9758 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
9759 a key, since the rest of the lexer doesn't quote it.
9760 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
9761 * tests/regression.at (Token definitions): Check for backslashes
9762 in token strings.
9763
9764 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
9765 (YYSIZE_T): Define to unsigned long int when using an older compiler.
9766 (yyparse): Revamp code to generate long syntax error message, to
9767 make it easier to translate, and to avoid problems with arithmetic
9768 overflow. Change "virtual memory" to "memory" in diagnostic, since
9769 we don't know whether the memory is virtual.
9770
9771 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
9772
9773 * NEWS: Bison-generated C parsers now use the _ macro to
9774 translate strings.
9775 * data/yacc.c (_) [!defined _]: New macro.
9776 All English strings wrapped inside this macro.
9777 * doc/bison.texinfo (Bison Parser): Document _.
9778 * po/POTFILES.in: Include src/parse-gram.c, since it now
9779 includes translateable strings that parse-gram.y doesn't.
9780
9781 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
9782
9783 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
9784 reverting the 2004-10-11 change to this function.
9785 (symbol_check_alias_consistency): Don't call symbol_type_set
9786 if the type name is already correct.
9787 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
9788
9789 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
9790
9791 * tests/regression.at (Token definitions): Don't use a token named
9792 c, as that generates a "#define c ..." that runs afoul of buggy
9793 stdlib.h that uses the identifier c as a member of struct
9794 drand48_data. Problem reported by Horst Wente.
9795
9796 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
9797
9798 * bootstrap: Change translation URL from
9799 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
9800 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
9801 redirection glitches. Problem reported by twlevo@xs4all.nl.
9802
9803 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
9804
9805 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
9806 after operands; POSIX says this isn't portable for the c99 command.
9807
9808 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
9809
9810 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
9811 immediately if a data overrun has occurred; this may help us track
9812 down what may be a spurious failure on MacOS.
9813
9814 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
9815
9816 Respond to problems reported by twlevo@xs4all.nl.
9817
9818 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
9819
9820 * src/vcg.h: Comment fix.
9821 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
9822 (G_CMAX): Change to -1 instead of INT_MAX.
9823
9824 * data/yacc.c (yyparse): Omit spaces before #line.
9825
9826 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
9827
9828 * src/tables.c (state_number_to_vector_number): Put it inside an
9829 "#if 0", since it's not currently used. Problem reported by
9830 Roland McGrath.
9831
9832 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
9833
9834 * src/output.c (escaped_output): Renamed from
9835 escaped_file_name_output, since we now use it for symbol tags as
9836 well. All uses changed.
9837 (symbol_destructors_output, symbol_printers_output):
9838 Escape symbol tags too.
9839 Problem reported by Matyas Forstner in
9840 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
9841
9842 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
9843 not needed.
9844 * src/output.c (user_actions_output, token_definitions_output,
9845 symbol_destructors_output, symbol_printers_output): Likewise.
9846 * src/reader.c (prologue_augment): Likewise.
9847 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
9848
9849 * src/vcg.c (output_edge): Don't quote linestyle arg.
9850 Problem reported by twlevo@xs4all.nl.
9851
9852 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
9853
9854 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
9855 example, reported by Derek M Jones. Also, make the example even
9856 more outrageous, to better illustrate how bad the problem is.
9857
9858 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
9859
9860 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
9861 putsym. Typo reported by Sebastian Piping.
9862
9863 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
9864
9865 * doc/bison.texinfo (Language and Grammar): some -> same
9866 (Epilogue): int he -> in the
9867 Typos reported by Sebastian Piping via Justin Pence.
9868
9869 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
9870
9871 * tests/glr-regression.at (Improper handling of embedded actions
9872 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
9873 embedded actions and $-N in GLR parsers", work around an Autoconf bug
9874 with dollar signs in test names.
9875 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
9876 for a similar reason.
9877
9878 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
9879
9880 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
9881 wants to redefine G_VIEW.
9882
9883 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
9884
9885 * src/vcg.c (get_view_str): Remove case for normal_view.
9886 Problem reported by twlevo@xs4all.nl.
9887
9888 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
9889
9890 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
9891 Problem reported by twlevo@xs4all.nl.
9892
9893 * doc/bison.texinfo: Change @dircategory from "GNU programming
9894 tools" to "Software development". Requested by Richard Stallman
9895 via Karl Berry.
9896
9897 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
9898
9899 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
9900 Problem reported by twlevo@xs4all.nl.
9901
9902 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
9903
9904 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
9905 keyword; it's not needed with modern compilers, and it doesn't
9906 affect correctness with older compilers. Suggested by
9907 twlevo@xs4all.nl.
9908
9909 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
9910
9911 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
9912 gcc -Wswitch-default.
9913 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
9914 * data/yacc.c (yyparse): Likewise.
9915
9916 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
9917
9918 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
9919 already. Let config.h define any nonstandard values.
9920
9921 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
9922
9923 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
9924 for the benefit of slower hosts. Problem reported by
9925 Nelson H. F. Beebe.
9926
9927 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
9928
9929 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
9930 being defined and not used.
9931 * data/lalr1.cc (yyparse): Likewise.
9932 Use "if (false)" rather than "if (0)".
9933
9934 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
9935
9936 * TODO: Mention that we should allow NUL bytes in tokens.
9937
9938 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
9939
9940 * src/scan-skel.l (<<EOF>>): Don't close standard output.
9941 Problem reported by Hans Aberg.
9942
9943 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
9944
9945 * src/getargs.c (version): Happy new year; update overall
9946 program copyright date from 2004 to 2005.
9947
9948 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
9949 Problem reported by Hans Aberg.
9950 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
9951 (Output file names.): Add a test for the case when standard output
9952 is closed.
9953
9954 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
9955
9956 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
9957 to fix an oversight in the Bison 2.0 manual.
9958
9959 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
9960
9961 * NEWS: Version 2.0. Reformat the existing news items since
9962 1.875, so that related items are grouped together.
9963 * configure.ac (AC_INIT): Bump version to 2.0.
9964 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
9965
9966 * tests/torture.at (Exploding the Stack Size with Alloca): Set
9967 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
9968 otherwise, we're not testing alloca. Unfortunately there's no
9969 simple way to consult HAVE_ALLOCA here.
9970
9971 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
9972 for yymsg, too.
9973
9974 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
9975 hand. This avoids a warning about comparing int to size_t when
9976 GCC warnings are enabled.
9977
9978 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
9979
9980 * NEWS: Bison-generated parsers no longer default to using the
9981 alloca function (when available) to extend the parser stack, due
9982 to widespread problems in unchecked stack-overflow detection.
9983 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
9984 responsibility to set it to a positive value. This lets the user
9985 specify a value that is not a preprocessor constant.
9986 * data/yacc.c (YYMAXDEPTH): Likewise.
9987 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
9988 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
9989 to be a compile-time constant. However, explain the constraints on it.
9990 Also, explain the constraints on YYINITDEPTH.
9991 (Table of Symbols): Explain that alloca is no longer the default.
9992 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
9993 to 1.
9994
9995 * doc/bison.texinfo (Location Default Action): Mention that n must
9996 be zero when k is zero. Suggested by Frank Heckenbach.
9997
9998 2004-12-22 Akim Demaille <akim@epita.fr>
9999
10000 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
10001 (parser::state_type, parser::semantic_type, parser::location_type):
10002 Private, not public.
10003 (parser::parse): Return ints, not bool.
10004 Returning a bool introduces a problem: 0 corresponds to false, and
10005 it seems weird to return false on success. Returning true changes
10006 the conventions for yyparse.
10007 Alternatively we could return void and send an exception.
10008 There is no clear consensus (yet?).
10009 (state_stack, semantic_stack, location_stack): Rename as...
10010 (state_stack_type, semantic_stack_type, location_stack_type): these.
10011 Private, not public.
10012 * tests/c++.at: New.
10013 * tests/testsuite.at, tests/Makefile.am: Adjust.
10014
10015 2004-12-21 Akim Demaille <akim@epita.fr>
10016
10017 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
10018
10019 2004-12-21 Akim Demaille <akim@epita.fr>
10020
10021 Don't impose std::string for filenames.
10022
10023 * data/lalr1.cc (b4_filename_type): New.
10024 (position::filename): Use it.
10025 (parser.hh): Move the inclusion of stack.hh and location.hh below
10026 the user code, so that needed headers for the filename type can be
10027 included first.
10028 Forward declare them before the user code.
10029 * tests/Makefile.am (check-local, installcheck-local): Pass
10030 TESTSUITEFLAGS to the TESTSUITE.
10031
10032 2004-12-20 Akim Demaille <akim@epita.fr>
10033
10034 Use more STL like names: my_class instead of MyClass.
10035
10036 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
10037 (SemanticStack, SemanticType, StateStack, StateType)
10038 (TokenNumberType, Stack, Slice, Traits, Parser::location)
10039 (Parser::value): Rename as...
10040 (location_stack, location_type, rhs_number_type, semantic_stack)
10041 (semantic_type, state_stack, state_type, token_number_type, stack)
10042 (slice, traits, parser::yylloc, parser::yylval): these.
10043
10044 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
10045
10046 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
10047
10048 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
10049 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
10050
10051 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
10052
10053 Remove uses of 'short int' and 'unsigned short int'. This raises
10054 some arbitrary limits. It uses more memory but nowadays that's
10055 not much of an issue.
10056
10057 This change does not affect the generated parsers; that's a different
10058 task, as some users will want to conserve memory there.
10059
10060 Ideally we should use size_t to represent all object counts, and
10061 something like ptrdiff_t to represent signed differences of object
10062 counts; but that will require more code-cleanup than I have the
10063 time to do right now.
10064
10065 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
10066 Use size_t, not int or short int, to count objects.
10067 * src/closure.c (nritemset, closure): Likewise.
10068 * src/closure.h (nritemset, closure): Likewise.
10069 * src/nullable.c (nullable_compute): Likewise.
10070 * src/print.c (print_core): Likewise.
10071 * src/print_graph.c (print_core): Likewise.
10072 * src/state.c (state_compare, state_hash): Likewise.
10073 * src/state.h (struct state): Likewise.
10074 * src/tables.c (default_goto, goto_actions): Likewise.
10075
10076 * src/gram.h (rule_number, rule): Use int, not short int.
10077 * src/output.c (prepare_rules): Likewise.
10078 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
10079 errs, reductions): Likewise.
10080 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
10081 Likewise.
10082 * src/tables.c (vector_number, tally, action_number,
10083 ACTION_NUMBER_MINIMUM): Likewise.
10084 * src/output.c (muscle_insert_short_int_table): Remove.
10085
10086 2004-12-17 Akim Demaille <akim@epita.fr>
10087
10088 * data/lalr1.cc: Extensive Doxygenation.
10089 (error_): Rename as...
10090 (error): this, since it is visible to the user.
10091 Adjust callers.
10092 (Parser::message): Now an automatic variable from...
10093 (Parser::yyreport_syntax_error_): here.
10094 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
10095 Parser::error.
10096 * tests/input.at: Escape $.
10097
10098 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
10099
10100 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
10101 Parenthesize rhs to avoid obscure problems with mistakes like
10102 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
10103 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10104 b4_rhs_location): Likewise.
10105 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10106 b4_rhs_location): Likewise.
10107
10108 2004-12-16 Akim Demaille <akim@epita.fr>
10109
10110 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
10111 yacc.c: be sure to stay within yycheck_.
10112 * tests/actions.at: Re-enable C++ tests.
10113
10114 2004-12-16 Akim Demaille <akim@epita.fr>
10115
10116 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
10117 real.
10118
10119 2004-12-16 Akim Demaille <akim@epita.fr>
10120
10121 Use #define to handle the %name-prefix.
10122
10123 * data/glr.c, data/yacc.c: Comment changes.
10124 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
10125 so that one can refer to yylex in the parser file, and have it
10126 renamed, as is the case with other skeletons.
10127
10128 2004-12-16 Akim Demaille <akim@epita.fr>
10129
10130 Move lalr1.cc internals into yy*.
10131
10132 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
10133 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
10134 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
10135 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
10136 (empty_, final_, terror_, errcode_, ntokens_)
10137 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
10138 (looka_, ilooka_, error_range_, nerrs_):
10139 Rename as...
10140 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
10141 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
10142 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
10143 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
10144 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
10145 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
10146 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
10147 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
10148 these.
10149
10150 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
10151
10152 Fix some problems reported by twlevo at xs4all.
10153 * src/symtab.c (symbol_new): Report an error if the input grammar
10154 contains too many symbols. This is better than calling abort() later.
10155 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
10156 (struct node, struct graph):
10157 Rename member expand to stretch. All uses changed.
10158 (struct graph): Remove member layoutalgorithm. All uses removed.
10159 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
10160 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
10161 All uses changed.
10162 (N_STRETCH): Rename from N_EXPAND. All uses changed.
10163
10164 2004-12-15 Akim Demaille <akim@epita.fr>
10165
10166 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
10167 Add more Doxygen comments.
10168 (symprint_, stack_print_, reduce_print_, destruct_, pop)
10169 (report_syntax_error_, translate_): Rename as...
10170 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
10171 (yypop_, yyreport_syntax_error_, yytranslate_): this.
10172
10173 2004-12-15 Akim Demaille <akim@epita.fr>
10174
10175 * data/lalr1.cc (lex_): Rename as...
10176 (yylex_): this.
10177 Move the trace here.
10178 Take the %name-prefix into account.
10179 Reported by Alexandre Duret-Lutz.
10180
10181 2004-12-15 Akim Demaille <akim@epita.fr>
10182
10183 Simplify the C++ parser constructor.
10184
10185 * data/lalr1.cc (debug_): Rename as...
10186 (yydebug_): so that the parser's internals are always in the yy*
10187 pseudo namespace.
10188 Adjust uses.
10189 (b4_parse_param_decl): Remove the leading comma as it is now only
10190 called as unique argument list.
10191 (Parser::Parser): Remove the constructor accepting a location and
10192 an initial debugging level.
10193 Remove from the other ctor the argument for the debugging level.
10194 (debug_level_type, debug_level, set_debug_level): New.
10195
10196 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
10197 constructor calls.
10198
10199 2004-12-15 Akim Demaille <akim@epita.fr>
10200
10201 Remove b4_root related material: failure experiment
10202 (which goal was to allow to derive from a class).
10203
10204 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
10205 definitions and uses.
10206
10207 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
10208
10209 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
10210 not 2, since it's not portable to subtract 1 from the start of an
10211 array. The new item 0 is never set or used. All uses changed.
10212
10213 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
10214 the default definition of YYLLOC_DEFAULT. Problem reported
10215 by Frank Heckenbach.
10216
10217 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
10218
10219 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
10220 the normal case and one for the error case. Just use the
10221 first one uniformly. Problem reported by Frank Heckenbach.
10222 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
10223 use exactly the same macro in both places.
10224 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
10225 so that the normal-case YYRHSLOC works for the error case too.
10226 All uses changed.
10227 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
10228 (YYLLOC_DEFAULT): Use the same macro as glr.c.
10229 * doc/bison.texinfo (Location Default Action): Don't claim that
10230 we have an array of locations. Use the same macro for both glr
10231 and lalr parsers. Mention YYRHSLOC. Mention what happens when
10232 the index is 0.
10233
10234 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10235
10236 * HACKING: Update email addresses to send announcements to.
10237
10238 * configure.ac (AC_INIT): Bump version to 1.875f.
10239
10240 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10241
10242 * NEWS: Version 1.875e.
10243 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
10244
10245 * src/scan-skel.l: Include "complain.h", for "fatal".
10246
10247 * src/relation.h (relation_print, relation_digraph):
10248 Relation sizes are of type relation_node, not size_t (this is
10249 merely a doc fix, since the two types are equivalent).
10250 (relation_transpose): Relation sizes are of type relation_node,
10251 not int.
10252 * src/relation.c: Likewise.
10253 (top, infinity): Now of type relation_node, not int.
10254 (traverse, relation_transpose): Use relation_node, not int.
10255
10256 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
10257 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
10258 (yyparse): Remove unused local introduced in 2004-10-25 patch.
10259
10260 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
10261 specifying whether the test should be skipped. Use it tp
10262 specify that the [%defines %skeleton "lalr1.cc"] tests currently
10263 fail on some hosts, and should be skipped.
10264
10265 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
10266
10267 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
10268 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
10269 unless otherwise specified below.
10270
10271 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
10272 to allocate kernel_base, kernel_items, kernel_size, since
10273 they needn't be initialized to 0.
10274 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
10275 * src/closure.c (new_closure): Likewise, for itemset.
10276 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
10277 * src/lalr.c (set_goto_map): Likewise, for temp_map.
10278 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
10279 (build_relations): Likewise for edge, states1, includes.
10280 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
10281 * src/reader.c (packgram): Likewise, for ritem, rules.
10282 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
10283 * src/relation.c (relation_digraph): Likewise for VERTICES.
10284 (relation_transpose): Likewise for new_R, end_R.
10285 * src/symtab.c (symbols_token_translations_init): Likewise for
10286 token_translations.
10287 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
10288 (token_actions): Likewise for yydefact, actrow, conflrow,
10289 conflict_list.
10290 (save_column): Likewise for froms[symno], tos[symno].
10291 (goto_actions): Likewise for state_count.
10292 (pack_table): Likewise for base, pos, check.
10293 (tables_generate): Likewise for width.
10294
10295 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
10296 for initial core. Just have a separate core, so we needn't worry
10297 about whether kernel_size and kernel_base are initialized.
10298
10299 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
10300 kernel_size, kernel_items): Remove unnecessary initialization.
10301 * src/conflicts.c (conflicts): Likewise.
10302 * src/derives.c (derives): Likewise.
10303 * src/muscle_tablc (muscle_insert): Likewise.
10304 * src/relation.c (relation_digraph): Likewise.
10305 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
10306 conflrow, conflict_table, conflict_list, table, check):
10307 Likewise.
10308
10309 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
10310 This is because all callers pass unsigned int.
10311 * src/closure.h (new_closure): Likewise.
10312
10313 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
10314 (build_relations): Initialize includes[i] in all cases.
10315 * src/reader.c (packgram): Always initialize rules[ruleno].prec
10316 and rules[ruleno].precsym. Initialize members in order.
10317 * src/relation.c (relation_transpose): Always initialize new_R[i]
10318 and end_R[i].
10319 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
10320
10321 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
10322 conflict_list[0] was always 0, but now it isn't initialized.
10323
10324 * src/table.c (table_grow): When conflict_table grew, the grown
10325 area wasn't cleared. Fix this.
10326
10327 * lib/.cvsignore: Add strdup.c, strdup.h.
10328 * m4/.cvsignore: Add strdup.m4.
10329
10330 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
10331
10332 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
10333 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
10334 GOTO_NUMBER_MAXIMUM, since we occasionally compute
10335 ngotos + 1 without checking for overflow.
10336 (build_relations): Use END_NODE, not -1, to denote end of edges.
10337 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
10338 build_relations): Use goto_number, not int, for goto numbers.
10339 * src/tables.c (save_column, default_goto): Likewise.
10340
10341 2004-11-23 Akim Demaille <akim@epita.fr>
10342
10343 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
10344 of #defining from yystype.
10345 Don't typedef yystype, C++ does not need it.
10346 This lets it possible to forward declare it as union.
10347
10348 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
10349
10350 * bootstrap (gnulib_modules): Add extensions.
10351 Problem reported by Jim Meyering.
10352
10353 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
10354
10355 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
10356 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
10357 src/system.h, src/tables.c: XFREE -> free, to accommodate
10358 recent change to gnulib xalloc.h.
10359 Problem reported by Jim Meyering.
10360
10361 2004-11-17 Akim Demaille <akim@epita.fr>
10362
10363 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
10364
10365 2004-11-17 Akim Demaille <akim@epita.fr>,
10366 Alexandre Duret-Lutz <adl@gnu.org>
10367
10368 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
10369 changes.
10370 (YYCDEBUG): Adjust.
10371 Use it instead of cdebug_.
10372 (Parser::debug_stream, Parser::set_debug_stream): New.
10373 (Parser::symprint_): Define cdebug_ for temporary backward
10374 compatibility.
10375 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
10376 debug_stream ().
10377
10378 2004-11-17 Akim Demaille <akim@epita.fr>
10379
10380 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
10381 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
10382 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
10383 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
10384
10385 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
10386
10387 * data/glr.c (yyloc_default): Remove; not used.
10388 Problem reported by Frank Heckenbach.
10389
10390 2004-10-25 Akim Demaille <akim@epita.fr>
10391
10392 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
10393 Introduce another definition to address simple location arrays.
10394 (yyGLRStack): New member: yyerror_range.
10395 (yyrecoverSyntaxError, yyparse): Update it.
10396 (yyrecoverSyntaxError): Use it when shifting the error token to
10397 have an accurate range, equivalent to the one computed by both
10398 yacc.c and lalr1.cc.
10399 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
10400 that column numbers start at column 0, as per GNU Coding
10401 Standards, the others tests, and the doc.
10402 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
10403 Adjust to the above change (first column is 0).
10404 And adjust the location of the "<error>", now covering the whole
10405 line.
10406
10407 2004-10-22 Akim Demaille <akim@epita.fr>
10408 and Paul Eggert <eggert@cs.ucla.edu>
10409
10410 Remove some arbitrary limits on goto numbers and relations.
10411 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
10412 initial values, since they're never used.
10413 (set_goto_map): ngotos is now unsigned, so test for overflow
10414 by seeing whether it wraps around to zero.
10415 * src/lalr.h (goto_number): Now size_t, not short int.
10416 (GOTO_NUMBER_MAXIMUM): Remove.
10417 * src/relation.c (relation_print, traverse, relation_transpose):
10418 Check for END_NODE rather than looking at sign.
10419 * src/relation.h (END_NODE): New macro.
10420 (relation_node): Now size_t, not short int.
10421
10422 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
10423
10424 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
10425 keyword, not an identifier. Problem reported by Baron Schwartz in
10426 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
10427
10428 2004-10-11 Akim Demaille <akim@epita.fr>
10429
10430 * src/symtab.c (symbol_check_alias_consistency): Also check
10431 type names, destructors, and printers.
10432 Reported by Alexandre Duret-Lutz.
10433 Recode the handling of associativity and precedence in terms
10434 of symbol_precedence_set.
10435 Accept no redeclaration at all, not even equal to the previous
10436 value.
10437 (redeclaration): New.
10438 Use it to factor redeclaration complaints.
10439 (symbol_make_alias): Don't set the type of the alias, let
10440 symbol_check_alias_consistency do it as for other features.
10441 * src/symtab.h (symbol): Add new member prec_location, and
10442 type_location.
10443 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
10444 * tests/input.at (Incompatible Aliases): New.
10445
10446 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
10447
10448 .cvsignore fixes to accommodate gnulib changes,
10449 and the practice of naming build directories "_build".
10450 * .cvsignore: Add "_*". Sort.
10451 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
10452 * m4/.cvsignore: Add "*_gl.m4".
10453
10454 2004-10-06 Akim Demaille <akim@epita.fr>
10455
10456 * src/parse-gram.y (add_param): Fix the truncation of trailing
10457 spaces.
10458
10459 2004-10-05 Akim Demaille <akim@epita.fr>
10460
10461 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
10462 whether the reducion was empty or not. This leaves room to
10463 improve the use of YYLLOC_DEFAULT in such a case.
10464 lalr1.cc is still experimental, so changing this is acceptable.
10465 And finally, there are probably not many users who changed the
10466 handling of locations in GLR, so changing is admissible too.
10467
10468 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
10469 empty reduction, set @$ to an empty location ending the previously
10470 stacked symbol.
10471 Adjust uses to make sure the code is triggered on empty
10472 reductions.
10473 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
10474 expected output: empty reductions have empty locations.
10475
10476 2004-09-29 Akim Demaille <akim@epita.fr>
10477
10478 * data/lalr1.cc: Move towards a more standard C++ coding style
10479 for templates: Class < T > -> Class<T>.
10480
10481 2004-09-29 Akim Demaille <akim@epita.fr>
10482
10483 * data/lalr1.cc: Reinstall the former ctor, for sake of
10484 compatibility, but warn it will be removed.
10485 Move towards a more standard C++ coding style (i.e., type *var ->
10486 type* var).
10487
10488 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
10489
10490 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
10491 since it's less likely to work if NULs are involved in the future.
10492
10493 2004-09-27 Akim Demaille <akim@epita.fr>
10494
10495 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
10496
10497 2004-09-27 Akim Demaille <akim@epita.fr>
10498
10499 * data/lalr1.cc (b4_parse_param_decl_1): New.
10500 (b4_parse_param_decl): Use it to have different names between attribute
10501 and argument names.
10502 (b4_cc_constructor_call): Likewise.
10503
10504 2004-09-24 Akim Demaille <akim@epita.fr>
10505
10506 * src/parse-gram.y (add_param): Strip the leading and trailing
10507 blanks from a formal argument declaration.
10508 (YY_LOCATION_PRINT): New.
10509
10510 2004-09-24 Akim Demaille <akim@epita.fr>
10511
10512 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
10513 after the location.
10514
10515 2004-09-24 Akim Demaille <akim@epita.fr>
10516
10517 * doc/bison.texinfo (Table of Symbols): Sort.
10518
10519 2004-09-21 Akim Demaille <akim@epita.fr>
10520
10521 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
10522 the useless parentheses.
10523 Suggested by Paul Eggert.
10524
10525 2004-09-20 Akim Demaille <akim@epita.fr>
10526
10527 Let the initial-action act on the look-ahead, and use it for the
10528 "initial push" (corresponding to an hypothetical beginning-of-file).
10529 And let lalr1.cc honor %initial-action.
10530
10531 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
10532 example.
10533 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
10534 (Parser::Parser): Remove the ctor that used to initialize it.
10535 (Parser::parse): Like in the other skeletons, issue the "starting
10536 parse" message before any action.
10537 Honor %initial-action.
10538 Initialize the stacks with the lookahead.
10539 * data/yacc.c: Let $$ and @$ in %initial-action designate the
10540 look-ahead.
10541 Push them in the stacks.
10542 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
10543
10544 2004-09-20 Akim Demaille <akim@epita.fr>
10545
10546 * doc/bison.texinfo (Initial Action Decl): New.
10547
10548 2004-09-20 Akim Demaille <akim@epita.fr>
10549
10550 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
10551 clearer criterion to define it.
10552 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
10553 When reducing on an empty RHS, use the latest stacked location as
10554 location.
10555 yylloc is not always available.
10556 * data/glr.c: Likewise.
10557 Also, honor initial-actions.
10558
10559 2004-09-20 Akim Demaille <akim@epita.fr>
10560
10561 * data/yacc.c (YY_LOCATION_PRINT): New.
10562 Define when we know YYLTYPE's structure, i.e., when the default
10563 YYLLOC_DEFAULT is used.
10564 * data/c.m4 (b4_yysymprint_generate): Use it.
10565 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
10566 value of the result.
10567 (error_start_): Replace with...
10568 (error_range_): this location array.
10569 This allows to replace code relying on the implementation of
10570 locations by portable code.
10571 * data/yacc.c (yylerrsp): Replace with...
10572 (yyerror_range): this.
10573 Every time a token is popped, update yyerror_range[0], to have an
10574 accurate location for the error token.
10575 * data/glr.c (YY_LOCATION_PRINT): New.
10576 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
10577 deference a pointer.
10578 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
10579 report the location in %printers.
10580
10581 * src/scan-skel.l: Instead of abort, report error messages to ease
10582 understanding skeleton scanning failures.
10583
10584 2004-09-16 Akim Demaille <akim@epita.fr>
10585
10586 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
10587 (iterator, const_iterator): these, to be more in the C++ spirit.
10588 Also, return reverse iterators so that when displaying the stack
10589 we display its bottom first.
10590 (Parser::stack_print_, Parser::reduce_print_): Match the messages
10591 from yacc.c.
10592 We should probably use vector here though.
10593
10594 2004-09-16 Akim Demaille <akim@epita.fr>
10595
10596 Have more complete shift traces.
10597
10598 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
10599 to report Shifts instead of ad hoc YYDPRINTF invocations,
10600 including for the error token.
10601 * data/lalr1.cc (symprint_): Output the location.
10602 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
10603 output the location within the %printer.
10604 Activate GLR tests, at least to make sure they compile properly.
10605 They still don't pass though.
10606 * tests/calc.at: Adjust expect verbose output, since now "Entering
10607 state..." is on a different line than the "Shifting" message.
10608
10609 2004-09-08 Akim Demaille <akim@epita.fr>
10610
10611 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
10612 Bison directive from the Bison file to the invocation of this
10613 macro, so that these directives are passed to
10614 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
10615 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
10616 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
10617 the extra Bison directives instead of the whole series.
10618 Change the grammar so that there are recoverable errors, and
10619 unrecoverable errors. Now we can have the parser give up before
10620 consuming the whole input. As a result we now can observe that
10621 the lookahead is freed when needed.
10622 Change the parser source to parse argv[1] instead of a hard coded
10623 string.
10624 Simplify yylex, and give a value and location to EOF.
10625 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
10626 passed directives already coded in the file.
10627 Add some tests to check the location of "error".
10628 For some tests, the C++ parser is correct, and not yacc.c.
10629 For other tests, they provide different, but unsatisfying, values,
10630 so keep the C++ value so that at least one parser is "correct"
10631 according to the test suite.
10632 (Actions after errors): Remove, this is subsumed by the
10633 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
10634
10635 2004-09-06 Akim Demaille <akim@epita.fr>
10636
10637 * data/lalr1.cc: Adjust the indentation of the labels.
10638 (Parser::pop): New.
10639 Use it.
10640
10641 2004-09-06 Akim Demaille <akim@epita.fr>
10642
10643 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
10644 argument, an informative message.
10645 Call YY_SYMBOL_PRINT.
10646 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
10647 * data/lalr1.cc (destruct_): Likewise.
10648 In addition, no longer depend on b4_yysymprint_generate and
10649 b4_yydestruct_generate to generate these functions, do it "by
10650 hand".
10651
10652 2004-09-03 Akim Demaille <akim@epita.fr>
10653
10654 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
10655 invoked, yydestruct the lookahead.
10656 * tests/calc.at (Calculator $1): Update the expected lengths of
10657 traces: there is an added line for the discarded lookahead.
10658 * doc/bison.texinfo (Destructor Decl): Some rewording.
10659 Define "discarded" symbols.
10660
10661 2004-09-02 Akim Demaille <akim@epita.fr>
10662
10663 * data/lalr1.cc (translate_, destruct_): No reason to be static.
10664
10665 2004-09-02 Akim Demaille <akim@epita.fr>
10666
10667 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
10668 (YYDSYMPRINTF): Rename as...
10669 (YY_SYMBOL_PRINT): this.
10670 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
10671 two.
10672 Use it instead of direct symprint_ calls.
10673 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
10674 one.
10675
10676 2004-09-02 Akim Demaille <akim@epita.fr>
10677
10678 * data/lalr1.cc (b4_yysymprint_generate): New.
10679 (symprint_): New member function, defined when YYDEBUG.
10680 Use it consistently instead of token/nterm debugging output by
10681 hand.
10682 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
10683 %printer calls to use cdebug_ when using lalr1.cc.
10684
10685 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
10686
10687 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
10688 with #ifdef YYDEBUG.
10689
10690 2004-08-26 Akim Demaille <akim@epita.fr>
10691
10692 * doc/bison.texinfo (Implementing Loops): Rename as...
10693 (Implementing Gotos/Loops): this.
10694
10695 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
10696
10697 Adjust to latest gnulib.
10698 * bootstrap (gnulib_modules): Add xalloc-die.
10699 Set LC_ALL=C so that file names sort consistently.
10700 Prefer the gnulib copies of gettext.m4, glibc21.m4,
10701 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
10702 uintmax_t.m4, ulonglong.m4.
10703 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
10704 po.m4 since we are now using _gl.m4 instead.
10705
10706 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
10707
10708 * src/scan-action.l: Remove. Scanning of semantic actions is
10709 handled in scan-gram.l.
10710
10711 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
10712
10713 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
10714
10715 * src/location.h (struct): The file member is a uniqstr.
10716 (equal_boundaries): Use UNIQSTR_EQ for comparison.
10717
10718 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
10719
10720 Fix bug with non-%union parsers that have printers or destructors,
10721 which led to a Bison core dump. Reported by Peter Fales in
10722 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
10723
10724 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
10725 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
10726 not to our own type.
10727 * src/output.c (symbol_destructors_output, symbol_printers_output):
10728 Don't assume %union.
10729 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
10730 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
10731 UNION-FLAG. All callers changed.
10732 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
10733 Use type char, not unsigned int, when declaring an array of char;
10734 this lets us remove a cast.
10735 (Printers and Destructors): Add non-%union test cases.
10736
10737 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10738
10739 * doc/bison.texinfo: Minor editorial changes, mostly to the new
10740 GLR writeups. E.g., avoid frenchspacing and the future tense,
10741 change "lookahead" to "look-ahead", and change "wrt" to "with
10742 respect to".
10743
10744 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10745
10746 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
10747 New sections, split off from the GLR Parsers section. Put the new
10748 Simple GLR Parser near the start of the GLR section, for clarity.
10749 Rewrite connective text.
10750
10751 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
10752
10753 * doc/bison.texinfo (Simple GLR Parsers): New section.
10754
10755 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10756
10757 * NEWS, TODO, doc/bison.texinfo:
10758 Use "look-ahead" instead of "lookahead", to be consistent.
10759 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
10760 while we're fixing "look-ahead".
10761 * src/conflicts.c (shift_set): Renamed from shiftset.
10762 (look_ahead_set): Renamed from lookaheadset.
10763 * src/print.c: Likewise.
10764 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
10765 name for "lookahead".
10766 (report_types, usage): Likewise.
10767 * src/getargs.h (report_look_ahead_tokens): Renamed from
10768 report_lookaheads.
10769 * src/lalr.c (compute_look_ahead_tokens): Renamed from
10770 compute_lookaheads.
10771 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
10772 (look_ahead_tokens_print): Renamed from lookaheads_print.
10773 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
10774 state_rule_lookaheads_print.
10775 * src/state.h: Likewise.
10776 (reductions.look_ahead_tokens): Renamed from lookaheads.
10777 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
10778 AT_DATA_LOOKAHEADS_GRAMMAR.
10779
10780 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
10781
10782 * README: Update location of patched M4 distribution.
10783
10784 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
10785
10786 Don't assume the C++ compiler takes the same arguments as the C compiler
10787 (trivial change).
10788 * configure.ac (O0CXXFLAGS): New var.
10789 * tests/atlocal.in (CXXFLAGS): Use it.
10790
10791 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
10792
10793 Fix some "make check" problems with C++ reported by
10794 Albert Chin-A-Young for Tru64 C++ in this thread:
10795 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
10796
10797 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
10798 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
10799 Output to a .cc file for C++, not to a .c file.
10800 * tests/calc.at (AT_CHECK_CALC): Likewise.
10801 * tests/regression.at (AT_CHECK_DANCER): Likewise.
10802 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
10803
10804 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
10805
10806 * tests/calc.at, tests/actions.at: Workaround for SGI
10807 C++ compiler. (trivial change)
10808
10809 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
10810
10811 Spent a few hours checking out which prerequisite versions the
10812 current sources actually require. I went all the way back to
10813 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
10814 a seemingly endless set of combinations of versions more recent
10815 than that. The bottom line is that the current sources require
10816 fairly recent versions of the build tools, and it'll be some work
10817 to change this.
10818 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
10819 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
10820 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
10821 Add comments explaining why those particular versions are
10822 currently needed.
10823
10824 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
10825 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
10826 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
10827
10828 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
10829 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
10830
10831 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
10832
10833 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
10834 0.11.5. Suggested by Bruno Haible.
10835 * bootstrap: Remove gettext version checking.
10836
10837 * doc/bison.texinfo (Decl Summary): Also mention that %union
10838 can depend on prerequisite types. Problem reported by Tim
10839 Van Holder.
10840
10841 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
10842
10843 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
10844 * README-alpha: Don't tell people not to package this.
10845
10846 * bootstrap: Don't assume $(...) works; use `...` instead.
10847 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
10848 gettext better.
10849
10850 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
10851 put into the -d output file, and mention what to do if YYSTYPE is
10852 defined as a macro.
10853
10854 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
10855
10856 Undo change made earlier today: it caused autopoint to not bring
10857 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
10858 autopoint's.
10859
10860 * bootstrap: Check that gettext version matches what's in
10861 configure.ac. Warn users to ignore robots.txt ERROR 404.
10862 * bootstrap: Undo today's earlier change (logged below).
10863 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
10864
10865 The gettext version checking is causing more trouble than it's
10866 curing; remove it. Problem reported by Paul Hilfinger.
10867
10868 * bootstrap: Issue a warning that one can expect a message
10869 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
10870 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
10871
10872 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
10873
10874 Ensure that the C++ compiler used for testing actually works on a
10875 simple test program; if not, skip the C++-related tests. Problem
10876 reported by Vin Shelton in:
10877 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
10878
10879 * m4/cxx.m4: New file.
10880 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
10881 * tests/atlocal.in (BISON_CXX_WORKS): Add.
10882 * tests/local.at (AT_COMPILE_CXX): Use it.
10883
10884 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10885
10886 * data/glr.c (yylloc): Output this macro even if locations are not
10887 being generated, as the GLR parser needs it even in that case.
10888 Problem reported by Troy A. Johnson
10889 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
10890
10891 * configure.ac (AC_INIT): Update to 1.875e.
10892
10893 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10894
10895 * NEWS: Version 1.875d.
10896 * configure.ac (AC_INIT): Likewise.
10897 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
10898
10899 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
10900 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
10901 lalr1.cc runs afoul of the first, and the last two are no longer
10902 supported by GCC 3.4.0.
10903 * README: Mention GNU m4 1.4 or later; mention m4 patches.
10904 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
10905
10906 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
10907
10908 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
10909 unsigned int, for compatibility with latest gnulib hash module.
10910 * src/state.c (state_hash, state_hasher): Likewise.
10911 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
10912 * src/uniqstr.c (hash_uniqstr): Likewise.
10913
10914 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
10915
10916 * NEWS: Unescaped newlines are no longer allowed in char & strings.
10917
10918 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
10919 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
10920 character and string literals.
10921 (unexpected_end): New function.
10922 (unexpected_eof): Use it.
10923 (unexpected_newline): New function.
10924 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
10925 actions.
10926
10927 * NEWS: Document %expect-rr.
10928
10929 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
10930 Fix typo by replacing $1 with $option.
10931 Remove more 'intl'-related files.
10932 Don't DEFUN AM_INTL_SUBDIR twice.
10933
10934 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
10935 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
10936 strtoul.c.
10937 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
10938 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
10939 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
10940 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
10941 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
10942 * src/.cvsignore: Add *.output.
10943
10944 * src/parse-gram.y: Put copyright notice inside %{ %} so it
10945 gets copied to the output file.
10946
10947 2004-04-28 Paul Eggert <eggert@twinsun.com>
10948
10949 Get files from the gnulib and po repositories, instead of relying
10950 on them being in our CVS. Upgrade to latest versions of gnulib
10951 and Automake.
10952
10953 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
10954 * bootstrap: Bootstrap from gnulib and po repositories.
10955 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
10956 * README-cvs: Document these changes. Remove version numbers from
10957 mentions of build tools, since they change so often. Mention Flex.
10958
10959 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
10960 (gl_USE_SYSTEM_EXTENSIONS): Add.
10961 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
10962 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
10963 does this for us.
10964 (AC_ISC_POSIX): Remove; we no longer support this
10965 ancient OS, as it gets in the way of latest Autoconf & gnulib.
10966 (AC_HEADER_STDC): Remove: we now assume C89 or better.
10967 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
10968 Do not check for C89 headers, except for locale.h which is used
10969 by the Yacc library and must port to K&R hosts.
10970 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
10971 Do not check for C89 functions, except for setlocale which is
10972 used by the Yacc library.
10973 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
10974 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
10975 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
10976 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
10977 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
10978 AM_GNU_GETTEXT): Remove; now done by:
10979 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
10980 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
10981 for us.
10982
10983 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
10984 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
10985 Define to empty, as gnulib.mk will do the rest for us.
10986 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
10987 for us.
10988 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
10989 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
10990
10991 * src/files.c: Include gnulib's xstrndup.h.
10992
10993 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
10994 (REALLOC): Use xnrealloc, for likewise.
10995 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
10996 (strnlen, memrchr): Remove decls; functions no longer used.
10997 Include <stpcpy.h>.
10998
10999 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
11000 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
11001 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
11002 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
11003 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
11004 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
11005 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
11006 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
11007 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
11008 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
11009 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
11010 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
11011 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
11012 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
11013 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
11014 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
11015 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
11016 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
11017 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
11018 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
11019 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
11020 Remove, as these files are now generated automatically
11021 by bootstrap or automake.
11022
11023 * po/ChangeLog: Remove: all but one entry was a duplicate
11024 of this file, and I moved that 2000-11-02 entry here.
11025
11026 * config/.cvsignore: Add Makefile, depcomp, install-sh.
11027 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
11028 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
11029 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
11030 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
11031 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
11032 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
11033 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
11034 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
11035 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
11036 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
11037 xstrndup.h.
11038 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
11039 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
11040 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
11041 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
11042 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
11043 * src/.cvsignore: Remove *_.c.
11044
11045
11046 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
11047 support it. (The latest stable gzip doesn't.)
11048
11049 2004-04-27 Paul Eggert <eggert@twinsun.com>
11050
11051 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
11052 case, as stos_ is now used by destructors due to the 2004-02-09
11053 change.
11054
11055 Remove more K&R C support.
11056 * lib/libiberty.y (PARAMS): Remove. All uses removed.
11057 * lib/subpipe.c (errno): Remove decl.
11058 Include <stdlib.h> unconditionally.
11059 (EXIT_FAILURE): Remove macro.
11060 * src/complain.c (vfprintf, strerror): Remove.
11061 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
11062 unconditionally.
11063 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
11064 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
11065 (strchr, strspn, memchr): Remove decls.
11066 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
11067 unconditionally. Do not declare perror.
11068 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
11069 unconditionally.
11070
11071 * src/complain.c (_): Remove useless defn, as system.h defines this.
11072
11073 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
11074 with latest obstack.h.
11075 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
11076 to procedure types, as obstack.h now does that for us.
11077 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
11078
11079 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
11080 so that this include file can stand alone.
11081 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
11082 does this now. Include subpipe.h first after config.h, to
11083 test whether it can stand alone.
11084
11085 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
11086 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
11087 unused declaration.
11088
11089 * tests/synclines.at (%union synch line): Put a dummy member in
11090 the union, because empty unions aren't allowed in C. Caught
11091 by GCC 3.4.0.
11092
11093 2004-04-13 Jim Meyering <jim@meyering.net>
11094
11095 * src/conflicts.c (conflicts_print): Correct format string typo:
11096 use `%%' to produce literal `%'. (trivial change)
11097
11098 2004-03-30 Paul Eggert <eggert@twinsun.com>
11099
11100 * src/getargs.c (version): Update copyright year to 2004.
11101
11102 * data/c.m4 (b4_int_type): Use 'short int' rather than
11103 'short', and similarly for 'long', 'unsigned', etc.
11104 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
11105 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
11106 yy_yypstack, yydumpstack): Likewise.
11107 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
11108 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
11109 Likewise.
11110 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
11111 yy_stack_print, yyparse): Likewise.
11112 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
11113 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
11114 * lib/bitset.c (bitset_print): Likewise.
11115 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
11116 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
11117 * lib/bitsetv.c (bitsetv_dump): Likewise.
11118 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
11119 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
11120 Likewise.
11121 * src/LR0.c (allocate_itemsets): Likewise.
11122 * src/gram.h (rule_number, rule): Likewise.
11123 * src/lalr.h (goto_number): Likewise.
11124 * src/nullable.c (nullable_compute): Likewise.
11125 * src/output.c (prepare_rules): Likewise.
11126 * src/relation.c (relation_print, relation_digraph): Likewise.
11127 * src/relation.h (relation_node): Likewise.
11128 * src/state.h (state_number, transitions, errs, reductions,
11129 struct state): Likewise.
11130 * src/symtab.h (symbol_number, struct symbol): Likewise.
11131 * src/tables.c (vector_number, tally, action_number,
11132 default_goto, goto_actions): Likewise.
11133 * tests/existing.at (GNU Cim Grammar): Likewise.
11134 * tests/regression.at (Web2c Actions): Likewise.
11135
11136 * src/output.c (muscle_insert_short_int_table): Renamed from
11137 muscle_insert_short_table. All uses changed.
11138
11139 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11140
11141 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
11142 (declaration): Replace expected_conflicts with expected_sr_conflicts.
11143 Add %expect-rr rule.
11144
11145 * src/scan-gram.l: Recognize %expect-rr.
11146
11147 * src/conflicts.h (expected_sr_conflicts): Rename from
11148 expected_conflicts.
11149 (expected_rr_conflicts): Declare.
11150
11151 * src/conflicts.c (expected_sr_conflicts): Rename from
11152 expected_conflicts.
11153 (expected_rr_conflicts): Define.
11154 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
11155 for GLR parsers.
11156 Use expected_sr_conflicts in place of expected_conflicts.
11157 Warn if expected_rr_conflicts used in non-GLR parser.
11158
11159 * doc/bison.texinfo: Add documentation for %expect-rr.
11160
11161 2004-03-08 Paul Eggert <eggert@gnu.org>
11162
11163 Add support for hex token numbers. Suggested by Odd Arild Olsen in
11164 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
11165
11166 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
11167 in lalr1.cc.
11168 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
11169 * src/scan-gram.l (scan_integer): New function.
11170 ({int}): Use it.
11171 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
11172 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
11173 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
11174 Say "long int", not "long", for uniformity with GNU style.
11175
11176 2004-02-25 Paul Eggert <eggert@twinsun.com>
11177
11178 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
11179 compilers. This fixes a problem with Intel's C++ compiler being
11180 chatty, reported by Guido Trentalancia in
11181 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
11182
11183 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
11184
11185 Support %destructor and merge error locations in lalr1.cc.
11186
11187 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
11188 (Parser::stos_): Define unconditionally.
11189 (Parser::destruct_): New method. Generate its body with
11190 b4_yydestruct_generate.
11191 (Parser::error_start_): New attribute.
11192 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
11193 token which are discarded.
11194 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
11195 error_start_ when erroneous token are discarded.
11196 (Parser::parse) <yyerrlab1>: Compute the location of the error
11197 token so that it covers all the discarded tokens.
11198 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
11199 it can be called with `%skeleton "lalr1.cc"', and do that.
11200
11201 2004-02-02 Paul Eggert <eggert@twinsun.com>
11202
11203 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
11204 $(top_srcdir)/lib and ../lib. This fixes a bug reported
11205 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
11206 There's no need to mention top_builddir since Automake does that
11207 for us.
11208 (INCLUDES): Remove, as Automake says it's obsolescent.
11209 Contents migrated into AM_CPPFLAGS as described above.
11210 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
11211
11212 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
11213
11214 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
11215 (yyreportSyntaxError): Handle case where lookahead token is
11216 YYEMPTY.
11217
11218 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11219
11220 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
11221 resulting parsers are compilable with C++.
11222
11223 2003-12-23 Paul Eggert <eggert@twinsun.com>
11224
11225 * config/depcomp, config/install-sh: Sync with Automake 1.8.
11226 * src/output.c (output_skeleton): Rename local var.
11227 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
11228 Bison tokens, as this runs afoul of the 2003-10-07 change that
11229 disallowed NUL bytes in character constants or string literals.
11230
11231 * tests/local.at: Require Autoconf 2.59's Autotest.
11232 * tests/testsuite.at: Don't include local.at, since we now assume
11233 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
11234 including it.
11235 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
11236 multiple inclusion warnings.
11237
11238 2003-12-02 Akim Demaille <akim@epita.fr>
11239
11240 * doc/bison.texinfo (How Can I Reset the Parser): More about start
11241 conditions.
11242 From Bruno Haible.
11243
11244 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
11245
11246 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
11247
11248 2003-10-07 Paul Eggert <eggert@twinsun.com>
11249
11250 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
11251 if testsuite doesn't exist.
11252
11253 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
11254 literals, unfortunately.
11255 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
11256 Complain about NUL bytes in character constants or string literals.
11257
11258 2003-10-05 Paul Eggert <eggert@twinsun.com>
11259
11260 * NEWS: Don't document %no-default-prec, as it's still
11261 too experimental.
11262 * doc/bison.texinfo: Document %no-default-prec only if
11263 the defaultprec flag is set. Normally it's not.
11264
11265 2003-10-04 Paul Eggert <eggert@twinsun.com>
11266
11267 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
11268 non-modifiable lvalue, instead of a modifiable one.
11269 * doc/bison.texinfo (Actions): Document that $$ can
11270 be assigned to. Do not claim that $$ and $N are
11271 array element references: user code should not rely on this.
11272
11273 2003-10-01 Paul Eggert <eggert@twinsun.com>
11274
11275 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
11276 (grammar_declaration): Use it.
11277 * src/scan-gram.l: New token %no-default-prec.
11278 * tests/conflicts.at: Revamp tests to use %no-default-prec.
11279 * NEWS, doc/bison.texinfo: Document the above.
11280
11281 2003-10-01 Akim Demaille <akim@epita.fr>
11282
11283 VCG no longer supports long_straight_phase.
11284
11285 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
11286 * src/print_graph.c (print_graph): Adjust.
11287
11288 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
11289 and Paul Eggert <eggert@twinsun.com>
11290
11291 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
11292 Table of Symbols): Document %default-prec.
11293 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
11294 (grammar_declaration): Set default_prec on %default-prec.
11295 * src/scan-gram.l (%default-prec): New token.
11296 * src/reader.h (default_prec): New flag.
11297 * src/reader.c: Likewise.
11298 (packgram): Handle it.
11299 * tests/conflicts.at (%default-prec without %prec,
11300 %default-prec with %prec, %default-prec 1): New tests.
11301
11302 2003-09-30 Paul Eggert <eggert@twinsun.com>
11303
11304 * tests/testsuite.at: Include local.at, not input.at, fixing
11305 a typo in the 2003-08-25 patch.
11306
11307 2003-08-27 Akim Demaille <akim@epita.fr>
11308
11309 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
11310 GCC warnings.
11311
11312 2003-08-26 Akim Demaille <akim@epita.fr>
11313
11314 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
11315 "<\#" to avoid magic from Gnus when posting parts of this script.
11316
11317 2003-08-26 Akim Demaille <akim@epita.fr>
11318
11319 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
11320 (Parser::parse): here.
11321 Adjust: nerrs and errstatus is now replaced by...
11322 (Parser::nerrs_, Parser::errstatus_): New.
11323
11324 2003-08-25 Akim Demaille <akim@epita.fr>
11325
11326 * config/announce-gen, Makefile.cfg: New.
11327 * Makefile.am: Adjust.
11328 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
11329 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
11330
11331 2003-08-25 Akim Demaille <akim@epita.fr>
11332
11333 When reducing initial empty rules, Bison parser read an initial
11334 location that is not defined. This results in garbage, and that
11335 affects Bison's own parser. Therefore we need (i) to extend Bison
11336 to support a means to initialize this location, and (ii) to use
11337 this CVS Bison to fix CVS Bison's parser.
11338
11339 * src/reader.h, reader.c (epilogue_augment): Remove, replace
11340 with...
11341 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
11342 * src/parse-gram.y: Adjust.
11343 (%initial-action): New.
11344 (%error-verbose): Since we require CVS Bison, there is no reason
11345 not to use it.
11346 * src/scan-gram.l: Adjust.
11347 * src/Makefile.am (YACC): New, to make sure we use our own parser.
11348 * data/yacc.c (yyparse): Use b4_initial_action.
11349
11350 2003-08-25 Akim Demaille <akim@epita.fr>
11351
11352 * doc/bison.texinfo: Don't promote stdout for error messages.
11353
11354 2003-08-25 Akim Demaille <akim@epita.fr>
11355
11356 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
11357 From Alexandre Duret-Lutz.
11358
11359 2003-08-25 Akim Demaille <akim@epita.fr>
11360
11361 Version 1.875c.
11362
11363 2003-08-25 Akim Demaille <akim@epita.fr>
11364
11365 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
11366 Use them.
11367
11368 2003-08-25 Akim Demaille <akim@epita.fr>
11369
11370 * data/lalr1.cc (Parser::reduce_print_): New.
11371 Use it.
11372
11373 2003-08-25 Akim Demaille <akim@epita.fr>
11374
11375 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
11376 error recovery loops. This patch is based on
11377 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
11378 Also, augment the similarity between lalr1.cc and yacc.c.
11379 Note: the locations of error recovery rules are not correct yet.
11380
11381 * data/lalr1.cc: Comment changes to augment the similarity between
11382 lalr1.cc and yacc.c.
11383 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
11384 (yyerrlab1): Remove, but where it used to be (now the bottom part of
11385 yyerrlab), when hitting EOF, pop the whole stack here instead of
11386 merely falling thru the default error handling mechanism.
11387 (yyerrorlab): New label, with the old contents of YYERROR,
11388 plus the following change: pop the stack of rhs corresponding
11389 to the production that invoked YYERROR. That is how Yacc
11390 behaves (required by POSIX).
11391 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
11392 fail.
11393
11394 2003-08-25 Akim Demaille <akim@epita.fr>
11395
11396 Tune local.at so that people can "autom4te -l autotest calc.at -o
11397 calc" for instance, to extract a sub test suite.
11398
11399 * tests/testsuite.at: Move the initialization, Autotest version
11400 requirement, and AT_TESTED invocation into...
11401 * tests/local.at: here.
11402 * tests/testsuite.at: Include it for compatibility with Autoconf
11403 2.57.
11404 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
11405 be ignore.
11406
11407 2003-08-04 Paul Eggert <eggert@twinsun.com>
11408
11409 Rework code slightly to avoid gcc -Wtraditional warnings.
11410 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
11411 The returned value is now stored in *YY0. All callers changed.
11412 * src/output.c (merge_output): Adjust to the above change.
11413
11414 2003-07-26 Paul Eggert <eggert@twinsun.com>
11415
11416 * data/glr.c (YYASSERT): New macro.
11417 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
11418 yyresolveStates, yyprocessOneStack):
11419 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
11420 Derived from a suggestion by Frank Heckenbach.
11421
11422 2003-07-25 Paul Eggert <eggert@twinsun.com>
11423
11424 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
11425 for portability to K&R C (after ansi2knr, presumably). See
11426 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
11427 by Frank Heckenbach, though I have omitted the structure-initialization
11428 part of his glr-knr.diff patch since I recall that the Portable
11429 C Compiler didn't require that change.
11430
11431 Let the user specify how to allocate and free memory.
11432 Derived from a suggestion by Frank Heckenbach in
11433 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
11434 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
11435 All uses of free, malloc, realloc changed to use these macros,
11436 and unnecessary casts removed.
11437 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
11438
11439 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
11440
11441 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
11442 use s.empty() rather than s == "" to test for empty string; see
11443 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
11444 (trivial change)
11445
11446 2003-06-25 Akim Demaille <akim@epita.fr>
11447
11448 * config/depcomp, config/install-sh: Update from masters.
11449
11450 2003-06-20 Paul Eggert <eggert@twinsun.com>
11451
11452 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
11453 and return properly parenthesized result.
11454 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
11455 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
11456 Remove unnecessary parentheses from uses.
11457 * doc/bison.texinfo (Location Default Action): Describe the
11458 conventions for parentheses.
11459
11460 2003-06-19 Paul Eggert <eggert@twinsun.com>
11461
11462 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
11463 yyreportTree): Do not assume that size_t is the same width as int,
11464 when printing sizes. Print sizes using an unsigned format.
11465 Problem reported by Frank Heckenbach in
11466 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
11467
11468 Port to Forte Developer 7 C compiler.
11469 * data/glr.c (struct YYLTYPE): If locations are not being used,
11470 declare a single dummy member, as empty structs do not conform
11471 to the C standard.
11472 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
11473 the Forte Developer 7 C compiler complains that end-of-loop
11474 code is not reached.
11475
11476 2003-06-17 Paul Eggert <eggert@twinsun.com>
11477
11478 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
11479 avoid warnings from picky compilers about redefinition of PARAMS.
11480
11481 2003-06-17 Paul Eggert <eggert@twinsun.com>
11482
11483 Version 1.875b.
11484
11485 * NEWS: Document 1.875b.
11486
11487 * lib/bbitset.h: Do not include config.h; that's the includer's job.
11488 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
11489 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
11490 Don't use 'index' in comments, as it's a builtin fn on some hosts.
11491 * lib/bitset_stats.c: Include gettext.h unconditionally, as
11492 per recent gettext manual's suggestion.
11493 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
11494 Use prototypes, not old-style definitions.
11495 * lib/lbitset.c (lbitset_unused_clear): Likewise.
11496 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
11497 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
11498 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
11499 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
11500 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
11501 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
11502 vbitset_or_and_cmp, vbitset_copy): Likewise.
11503
11504 * lib/libiberty.h: Do not include config.h; that's the includer's job.
11505 Do not include <stdlib.h>.
11506 (PARAMS): Define unconditionally for C89.
11507 (ATTRIBUTE_NORETURN): Remove.
11508 (ATTRIBUTE_UNUSED): Define unconditionally.
11509
11510 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
11511 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
11512 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
11513 * lib/vbitset.c, lib/vbitset.h: New files.
11514 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
11515 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
11516 from libbitset.
11517
11518 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
11519 `How Can I Reset @code{yyparse}', since texinfo does not allow
11520 arbitrary @ in node names.
11521
11522 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
11523 shouldn't be needed according to the gettext 0.12.1 documentation
11524 but which seem to be needed anyway: codeset.m4 glibc21.m4
11525 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
11526 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
11527 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
11528
11529 * lib/.cvsignore: Add stdbool.h.
11530 * m4/.cvsignore: Add nls.m4, po.m4.
11531
11532 Upgrade to CVS gnulib.
11533 * stdbool_.h: File renamed from stdbool.h.in.
11534 * configure.ac (AM_STDBOOL_H): Invoke this instead of
11535 AC_HEADER_STDBOOL.
11536 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
11537 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
11538 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
11539 (MOSTLYCLEANFILES): New var.
11540 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
11541 (stdbool.h): New rule.
11542 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
11543 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
11544 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
11545 m4/quote.m4: Upgrade to today's gnulib.
11546
11547 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
11548 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
11549 the tests right now.
11550 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
11551 yyerror are declared before use; C99 requires this.
11552
11553 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11554
11555 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
11556 first.
11557 (yyrecoverSyntaxError): Correct the logic for setting and testing
11558 yyerrState.
11559 Correct comment on handling EOF.
11560 Allow states with only a default reduction, rather than failing
11561 (I can't quite reconstruct why these were not allowed before).
11562
11563 Fixes to avoid problem that $-N rules in GLR parsers can cause
11564 buffer overruns, corrupting state.
11565
11566 * src/output.c (prepare_rules): Output max_left_semantic_context
11567 definition.
11568 * src/reader.h (max_left_semantic_context): New variable declaration.
11569 * src/scan-gram.l (max_left_semantic_context): Define.
11570 (handle_action_dollar): Update max_left_semantic_context.
11571 * data/glr.c (YYMAXLEFT): New definition.
11572 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
11573 (yyresolveAction): Ditto.
11574
11575 Fixes to problems with location handling in GLR parsers reported by
11576 Frank Heckenbach (2003/06/05).
11577
11578 * data/glr.c (YYLTYPE): Make trivial if locations not used.
11579 (YYRHSLOC): Add parentheses, and define only if locations used.
11580 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
11581 locations not used.
11582 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
11583 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
11584
11585 * tests/cxx-type.at: Exercise location information; update tests
11586 to differentiate output with and without locations.
11587 Remove forward declarations of yylex and yyerror---caused errors
11588 because default YYLTYPE not yet defined.
11589 Change semantic actions to compute strings, rather than printing
11590 them directly (to test proper passing of semantics values). Change
11591 output to prefix notation and update test data and expected results.
11592 (yylex): Track locations.
11593 (stmtMerge): Return value rather than printing, and include arguments
11594 in value.
11595
11596 2003-06-03 Paul Eggert <eggert@twinsun.com>
11597
11598 Avoid warnings generated by GCC 2.95.4 when Bison is
11599 configured with --enable-gcc-warnings.
11600 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
11601 yy::]b4_parser_class_name[::translate_,
11602 yy::Stack::operator[] (unsigned),
11603 yy::Stack::operator[] (unsigned) const,
11604 yy::Slice::operator[] (unsigned),
11605 yy::Slice::operator[] (unsigned) const):
11606 Rename local vars to avoid warnings.
11607 * tests/glr-regression.at (Improper handling of embedded actions
11608 and $-N in GLR parsers): Remove unused local variable from yylex.
11609 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
11610 (void) as arg when not pure, since we now assume C89 when building
11611 Bison. Pacify GCC by using parameter.
11612
11613 2003-06-02 Paul Eggert <eggert@twinsun.com>
11614
11615 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
11616 yy::Location::lines, yy::Location::columns): Rename arguments
11617 to avoid shadowing; this removes a warning generated by GCC 3.3.
11618
11619 2003-06-01 Paul Eggert <eggert@twinsun.com>
11620
11621 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
11622 to g++, as GCC 3.3 complains if you do it.
11623 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
11624 everything that WARNING_CFLAGS has, except omit warnings
11625 not suitable for C++.
11626 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
11627 * tests/atlocal.in (CXXFLAGS): New var.
11628 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
11629
11630 Fix a GLR parser bug I reported in February; see
11631 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
11632 The problem was that GLR parsers did not conform to the C standard,
11633 because actions like { $1 = $2 + $3; } expanded to expressions
11634 that invoked YYFILL in separate subexpressions, and YYFILL assigned
11635 to a local variable. The C standard says that expressions
11636 like (var = f ()) + (var = f ()) have undefined behavior.
11637 Another problem was that GCC sometimes issues warnings that
11638 yyfill and its parameters are unused.
11639
11640 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
11641 as possibly unused.
11642 (yyfill): New function.
11643 (YYFILL): Use it.
11644 (yyuserAction): Change type of yynormal to bool, so that it matches
11645 the new yyfill signature. Mark it as possibly unused.
11646
11647
11648 Follow up on a bug I reported in February, where a Bison-generated
11649 parser can loop. Provide a test case and a fix for yacc.c. I
11650 don't have a fix for lalr1.cc or for glr.c, unfortunately.
11651 The original bug report is in:
11652 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
11653
11654 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
11655 macro's size was becoming unwieldy.
11656 (yyerrlab): Do not discard an empty lookahead symbol, as this
11657 might destroy garbage.
11658 (yyerrorlab): New label, with the old contents of YYERROR,
11659 plus the following change: pop the stack of rhs corresponding
11660 to the production that invoked YYERROR. That is how Yacc
11661 behaves, and POSIX requires this behavior.
11662 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
11663 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
11664 Define 'alarm' to do nothing if unistd.h is not available.
11665 Add a new rule "exp: '-' error;" to test the above change to
11666 data/yacc.c. Use 'alarm' to abort any test taking longer than
11667 10 seconds, as it's probably looping.
11668 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
11669 Also, the new yacc.c generates two fewer diagnostics for an
11670 existing test.
11671
11672 2003-05-24 Paul Eggert <eggert@twinsun.com>
11673
11674 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
11675 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
11676 This fixes a problem reported by John Bowman when the Compaq/HP
11677 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
11678 -ansi -Wall -gall).
11679 * data/yacc.c (union yyalloc): Likewise.
11680 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
11681
11682 Switch from 'int' to 'bool' where that makes sense.
11683
11684 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
11685 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
11686 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
11687 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
11688 Return or accept bool, not int. All callers changed.
11689 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
11690 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
11691 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
11692 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
11693 bitset_or_and_cmp_): Likewise.
11694 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
11695 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
11696 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
11697 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
11698 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
11699 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
11700 bitset_stats_or_and_cmp): Likewise.
11701 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
11702 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
11703 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
11704 ebitset_xor_cmp): Likewise.
11705 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
11706 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
11707 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
11708 lbitset_xor_cmp): Likewise.
11709 * lib/bbitset.h: Include <stdbool.h>.
11710 (struct bitset_vtable): The following members now return bool, not
11711 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
11712 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
11713 or_and_cmp).
11714 * src/conflicts.c (count_rr_conflicts): Likewise.
11715 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
11716 All uses changed.
11717 * lib/ebitset.c (ebitset_obstack_init): Likewise.
11718 * lib/lbitset.c (lbitset_obstack_init): Likewise.
11719 * src/getargs.c (debug_flag, defines_flag, locations_flag,
11720 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
11721 graph_flag): Likewise.
11722 * src/getargs.h (debug_flag, defines_flag, locations_flag,
11723 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
11724 graph_flag): Likewise.
11725 * src/output.c (error_verbose): Likewise.
11726 * src/output.h (error_verbose): Likewise.
11727 * src/reader.c (start_flag, typed): Likewise.
11728 * src/reader.h (typed): Likewise.
11729 * src/getargs.c (LOCATIONS_OPTION): New constant.
11730 (long_options, getargs): Use it.
11731 * src/lalr.c (build_relations): Use bool, not int.
11732 * src/nullable.c (nullable_compute): Likewise.
11733 * src/print.c (print_reductions): Likewise.
11734 * src/tables.c (action_row, pack_vector): Likewise.
11735 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
11736 * src/output.c (prepare): Use it.
11737 * src/output.c (token_definitions_output,
11738 symbol_destructors_output, symbol_destructors_output): Use string,
11739 not boolean integer, to keep track of whether to output separator.
11740 * src/print_graph.c (print_core): Likewise.
11741 * src/state.c (state_rule_lookaheads_print): Likewise.
11742
11743 * config/install-sh: Sync from automake 1.7.5.
11744
11745 2003-05-14 Paul Eggert <eggert@twinsun.com>
11746
11747 * src/parse-gram.y (rules_or_grammar_declaration): Require a
11748 semicolon after a grammar declaration, in the interest of possible
11749 future changes to the Bison input language.
11750 Do not allow a stray semicolon at the start of the grammar.
11751 (rhses.1): Allow one or more semicolons after any rule, including
11752 just before "|" as required by POSIX.
11753 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
11754 grammar.
11755
11756 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
11757
11758 %parse-param support for lalr1.cc.
11759
11760 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
11761 b4_cc_constructor_calls, b4_cc_constructor_call,
11762 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
11763 definitions.
11764 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
11765 parse-param arguments.
11766 (yy::b4_parser_class_name): Declare instance variables to
11767 hold parse-param arguments.
11768 * tests/calc.at: s/value/semantic_value/ because value clashes
11769 with a member of yy::b4_parser_class_name. Adjust C++ code
11770 to handle %parse-param. Enable %parse-param test in C++.
11771
11772 2003-05-12 Paul Eggert <eggert@twinsun.com>
11773
11774 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
11775 English a bit. Fix fclose typo. Change "const char" to "char
11776 const", and use ANSI C rather than K&R for "main". Suggest
11777 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
11778 and suggest yy_switch_to_buffer.
11779
11780 2003-05-05 Paul Eggert <eggert@twinsun.com>
11781
11782 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
11783 C89. This avoids a diagnostic on compilers that define __STDC__
11784 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
11785 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11786
11787 2003-05-03 Paul Eggert <eggert@twinsun.com>
11788
11789 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
11790 Do not overrun array bounds.
11791 This should fix a bug reported today by Olatunji Oluwabukunmi in
11792 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
11793
11794 2003-04-29 Akim Demaille <akim@epita.fr>
11795
11796 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
11797 * src/getargs.c, src/getargs.h: here, as bool, not int.
11798 (nondeterministic_parser): New.
11799 * src/parse-gram.y, src/scan-gram.l: Support
11800 %nondeterministic-parser.
11801 * src/output.c (prepare): Use nondeterministic_parser instead
11802 of glr_parser where appropriate.
11803 * src/tables.c (conflict_row, action_row, save_row)
11804 (token_actions, token_actions, pack_vector): Ditto.
11805
11806 2003-04-29 Akim Demaille <akim@epita.fr>
11807
11808 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
11809
11810 2003-04-29 Akim Demaille <akim@epita.fr>
11811
11812 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
11813 with %pure-parser and %locations to exercise the patch from Yakov
11814 Markovitch below.
11815
11816 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
11817
11818 * data/yacc.c: (b4_lex_param): Corrected for the case where
11819 %lex-param is provided and %pure-parser isn't.
11820
11821 2003-04-27 Paul Eggert <eggert@twinsun.com>
11822
11823 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
11824 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
11825 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
11826 if it is not defined.
11827 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
11828
11829 2003-04-26 Paul Eggert <eggert@twinsun.com>
11830
11831 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
11832 Declare to be of type suitable for the ninf value itself, not of
11833 type suitable for the corresponding table, since the latter might
11834 be unsigned but the ninf value might be negative. This fixes a
11835 bug reported by Alexandre Duret-Lutz in
11836 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
11837
11838 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
11839 invokes it. We shouldn't invoke it twice because it will attempt
11840 to put error.o in the archive twice. This fixes a glitch reported
11841 by Martin Mokrejs in
11842 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11843
11844 2003-04-21 Paul Eggert <eggert@twinsun.com>
11845
11846 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
11847 to gnulib.
11848
11849 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
11850
11851 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
11852 Fix obvious typo that results in uncompilable GLR parsers
11853 when both %pure-parser and %locations are used. (trivial change)
11854
11855 2003-04-17 Paul Eggert <eggert@twinsun.com>
11856
11857 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
11858 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
11859 Do not insert the expected token via unput, as this runs afoul
11860 of a POSIX-compatibility bug in flex 2.5.31.
11861 All uses changed to BEGIN the parent state,
11862 since we no longer insert the expected token via unput.
11863 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
11864 that is no longer emitted after the above change.
11865
11866 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
11867 the first one. This change is from Paul Hilfinger, and it fixes
11868 regression reported by Werner Lemberg in
11869 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
11870
11871 (resolve_sr_conflict): Don't invoke state_errs_set
11872 unless one or more tokens have been explicitly made errors.
11873 Otherwise, the above change causes Bison to abort.
11874
11875 * tests/existing.at (GNU pic Grammar): New test case, taken from
11876 Lemberg's email.
11877
11878 2003-03-31 Akim Demaille <akim@epita.fr>
11879
11880 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
11881
11882 2003-03-31 Akim Demaille <akim@epita.fr>
11883
11884 * src/output.c (prepare_symbols): Avoid trailing spaces in the
11885 output.
11886
11887 2003-03-31 Akim Demaille <akim@epita.fr>
11888
11889 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
11890 From Paul Hilfinger.
11891
11892 2003-03-29 Akim Demaille <akim@epita.fr>
11893
11894 * m4/error.m4: Do not put under dynamic conditions some code which
11895 expansion is under static control.
11896
11897 2003-03-29 Akim Demaille <akim@epita.fr>
11898
11899 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
11900
11901 2003-03-29 Akim Demaille <akim@epita.fr>
11902
11903 * doc/bison.texinfo (Strings are Destroyed): New.
11904
11905 2003-03-13 Paul Eggert <eggert@twinsun.com>
11906
11907 * .cvsignore: Add configure.lineno.
11908 * src/.cvsignore: Add yacc.
11909 * tests/.cvsignore: Add testsuite.log.
11910 * doc/fdl.texi: Sync with latest FSF version.
11911
11912 2003-03-12 Paul Eggert <eggert@twinsun.com>
11913
11914 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
11915 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
11916 cursor, instead of leaving it undefined. This fixes a bug
11917 reported by Tim Van Holder in
11918 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
11919 * tests/input.at (Torturing the Scanner): Test the scanner on
11920 an empty input file, which was Tim Van Holder's test case.
11921
11922 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
11923 <sys/resource.h> can be included, include sys/time.h and
11924 sys/times.h first, if available. This works around the SunOS
11925 4.1.4 porting bug reported by Bruce Becker in
11926 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
11927
11928 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
11929 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
11930 AC_HEADER_SYS_WAIT.
11931
11932 Merge changes from gnulib. This was prompted because the CVS
11933 snapshot didn't build on Solaris 7 due to strnlen problems.
11934
11935 These changes need to be merged back into gnulib:
11936 * lib/hash.c: Include <stdbool.h> unconditionally.
11937 * m4/onceonly.m4 (m4_quote): New macro.
11938 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
11939 Quote AC_FOREACH variable-expansions properly.
11940 The 2003-01-03 obstack.h change also needs merging.
11941 {end of changes requiring merging}
11942
11943 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
11944 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
11945 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
11946 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
11947 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
11948 New files, imported from gnulib.
11949 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
11950 above.
11951
11952 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
11953 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
11954 gnulib sources.
11955
11956 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
11957 Add.
11958 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
11959 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
11960 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
11961 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
11962 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
11963 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
11964 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
11965 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
11966 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
11967 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
11968 (jm_PREREQ_ARGMATCH): Remove.
11969 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
11970 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
11971
11972 * src/system.h: Include <stdbool.h> unconditionally.
11973
11974 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
11975 assuming at least C89 in the bitset code for some time now.
11976
11977 2003-03-03 Akim Demaille <akim@epita.fr>
11978
11979 * ro.po: New.
11980
11981 2003-03-02 Akim Demaille <akim@epita.fr>
11982
11983 * doc/bison.texinfo (Table of Symbols): Reactivate the
11984 documentation for %lex-param, and %parse-param.
11985
11986 2003-03-02 Akim Demaille <akim@epita.fr>
11987
11988 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
11989 generate verbose error messages.
11990 Use the number of tokens as an upper bound in yytname, as it
11991 cannot be a non terminal.
11992
11993 2003-03-02 Akim Demaille <akim@epita.fr>
11994
11995 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
11996 message.
11997
11998 2003-03-02 Akim Demaille <akim@epita.fr>
11999
12000 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
12001 Use them to exercise yycheck overrun.
12002 Based on Andrew Suffield's grammar.
12003
12004 2003-03-02 Akim Demaille <akim@epita.fr>
12005
12006 Create tests/local.at for Bison generic testing macros.
12007
12008 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
12009 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
12010 This new file.
12011 * tests/calc.at (AT_CHECK_CALC): Adjust.
12012 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
12013 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
12014 * tests/local.at: here.
12015 (AT_COMPILE_CXX): Tags the tests using it as c++.
12016 Ignore the test if CXX is not functional.
12017
12018 2003-03-01 Paul Eggert <eggert@twinsun.com>
12019
12020 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
12021 not loc->end, since loc->end might contain garbage and this leads
12022 to undefined behavior on some platforms.
12023 (id_loc, token_start): Use (IF_LINTed) initial values that do not
12024 depend on *loc, so that the reader doesn't give the the false
12025 impression that *loc is initialized.
12026 (<INITIAL>"%%"): Do not bother setting code_start, since its value
12027 does not survive the return.
12028
12029 2003-03-01 Akim Demaille <akim@epita.fr>
12030
12031 * src/scan-gram.l (code_start): Always initialize it when entering
12032 into yylex, as SC_EPILOGUE is activated *before* the corresponding
12033 yylex invocation. An alternative would be making it static, but
12034 then it starts with the second %%'s beginning, instead of its end.
12035
12036 2003-02-28 Paul Eggert <eggert@twinsun.com>
12037
12038 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
12039 around a UnixWare 7.1.1 porting bug reported by John Hughes in
12040 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
12041
12042 2003-02-26 Paul Eggert <eggert@twinsun.com>
12043
12044 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
12045 Remove Sequent/Pyramid discussion (nobody uses them any more).
12046 Merge VMS and MS-DOS discussion; these ports may well be dead
12047 but let's keep mentioning them for now. Put <> around email
12048 addresses. Add copyright notice.
12049
12050 2003-02-24 Paul Eggert <eggert@twinsun.com>
12051
12052 * data/glr.c (yy_reduce_print): yylineno -> yylno,
12053 to avoid collision with flex use of yylineno.
12054 Problem reported by Bruce Lilly in
12055 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
12056 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
12057 * data/yacc.c (yy_reduce_print): Likewise.
12058
12059 * config/depcomp: Sync with Automake 1.7.3.
12060
12061 2003-02-21 Akim Demaille <akim@epita.fr>
12062
12063 * data/lalr1.cc: Use temporary variables instead of casts to
12064 change integer types.
12065 Suggested by Paul Eggert.
12066
12067 2003-02-21 Akim Demaille <akim@epita.fr>
12068
12069 * doc/bison.texinfo: Use "location" consistently to refer to @n,
12070 to avoid confusions with lalr1.cc's notion of Position.
12071 Suggested by Paul Eggert.
12072
12073 2003-02-20 Akim Demaille <akim@epita.fr>
12074
12075 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
12076 before initial_columns.
12077 (location.hh): Use consistent variable names when defining the
12078 operator<<.
12079 Use "last" so that we subtract from Positions, not from unsigned.
12080
12081 2003-02-20 Akim Demaille <akim@epita.fr>
12082
12083 * data/lalr1.cc (position.hh): New subfile, including the extended
12084 and Doxygen'ed documentation of class Position.
12085 (location.hh): Use it.
12086 Document a` la Doxygen.
12087 With the help of Benoit Perrot.
12088
12089 2003-02-20 Akim Demaille <akim@epita.fr>
12090
12091 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
12092 AT_YACC_IF.
12093 Redefine AT_YYERROR_SEES_LOC_IF using it.
12094 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
12095 not defined.
12096 Don't use the location in yy::Parser::error_ and
12097 yy::Parser::print_ when not %locations.
12098 Activate more lalr1.cc tests.
12099
12100 2003-02-19 Akim Demaille <akim@epita.fr>
12101
12102 * data/lalr1.cc: When displaying a line number, be sure to make it
12103 an int.
12104
12105 2003-02-19 Akim Demaille <akim@epita.fr>
12106
12107 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
12108 Remove, useless.
12109 (YYABORT, YYACCEPT, YYERROR): New.
12110 * tests/calc.at: Renable the lalr1.cc test.
12111
12112 2003-02-19 Akim Demaille <akim@epita.fr>
12113
12114 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
12115 error recovery, mixing with/without pops and discarding of the
12116 lookahead.
12117 Exercise YYERROR.
12118 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
12119
12120 2003-02-17 Paul Eggert <eggert@twinsun.com>
12121
12122 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
12123 * tests/testsuite.at (AT_COMPILE): Use them.
12124 This fixes the testsuite problem reported by Robert Lentz in
12125 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
12126
12127 2003-02-12 Paul Eggert <eggert@twinsun.com>
12128
12129 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
12130 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
12131 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
12132 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
12133 Check for malloc failure, for consistency with yacc.c.
12134 (yytname_size): Remove, for consistency with yacc.c.
12135
12136 The bug still remains in data/lalr1.cc, as I didn't have time
12137 to fix it there.
12138
12139 2003-02-06 Akim Demaille <akim@epita.fr>
12140
12141 * configure.ac (GXX): Rename as...
12142 (CXX): this, to keep the original Autoconf semantics.
12143 Require 2.57.
12144 * data/lalr1.cc: Fix b4_copyright invocations.
12145 If YYDEBUG is not defined, don't depend upon name_ being defined.
12146 (location.hh): Include string and iostream.
12147 (Position::filename): New member.
12148 (Position::Position ()): New.
12149 (operator<< (Position)): New.
12150 (operator- (Position, int)): New.
12151 (Location::first, Location::last): Rename as...
12152 (Location::begin, Location::end): these, to mock the conventional
12153 iterator names.
12154 (operator<< (Location)): New.
12155 * tests/atlocal.in (CXX): New.
12156 * tests/testsuite.at (AT_COMPILE_CXX): New.
12157 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
12158 locations in a more synthetic way.
12159 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
12160 lalr1.cc is used.
12161 Adjust the C locations to match those from Emacs: first column is
12162 column 0.
12163 Change all the expected results.
12164 Conform to the GCS: simplify the locations when applicable.
12165 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
12166 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
12167 these CPP macros with the m4 macros new defined by...
12168 (AT_CHECK_PUSHDEFS): this, i.e.:
12169 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
12170 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
12171 New macros.
12172 (AT_CHECK_POPDEFS): Undefine them.
12173 (AT_CHECK_CALC_LALR1_CC): New.
12174 Use it for the first lalr1.cc test.
12175
12176 2003-02-04 Akim Demaille <akim@epita.fr>
12177
12178 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
12179 Location as is defined.
12180
12181 2003-02-04 Akim Demaille <akim@epita.fr>
12182
12183 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
12184 name_ being defined.
12185
12186 2003-02-03 Paul Eggert <eggert@twinsun.com>
12187
12188 * src/gram.h (start_symbol): Remove unused decl.
12189
12190 Use more-consistent naming conventions for local vars.
12191
12192 * src/derives.c (derives_compute): Change type of local var from
12193 int to rule_number.
12194 * src/gram.c (grammar_rules_partial_print): Likewise.
12195 * src/print.c (print_core): Likewise.
12196 * src/reduce.c (reduce_grammar_tables): Likewise.
12197
12198 * src/gram.c (grammar_dump): Change name of item_number *
12199 local var from r to rp.
12200 * src/nullable.c (nullable_compute): Likewise.
12201
12202 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
12203
12204 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
12205 for symbol or symbol_number var.
12206 * src/reader.c (grammar_start_symbol_set): Likewise.
12207 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
12208 Likewise.
12209 * src/state.c (transitions_to): Likewise.
12210 * src/state.h: Likewise.
12211 * src/tables.c (symbol_number_to_vector_number): Likewise.
12212
12213 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
12214 char * var.
12215
12216 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
12217 var.
12218
12219 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
12220 var.
12221
12222 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
12223 Use str, not s, for char * var. Use ch, not c, for character var.
12224 Use size for size var.
12225
12226 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
12227 char * var.
12228 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
12229 uniqstr var.
12230 * src/uniqstr.h: Likewise.
12231
12232 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
12233 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
12234 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
12235 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
12236 param to have same name as that of enum, so that we don't use
12237 "s" to stand for a non-state.
12238
12239 2003-02-02 Akim Demaille <akim@epita.fr>
12240
12241 * src/scan-skel.l: Scan more than one inert character per yylex
12242 invocation.
12243
12244 2003-02-01 Paul Eggert <eggert@twinsun.com>
12245
12246 Version 1.875a.
12247
12248 * po/LINGUAS: Add ms.
12249
12250 2003-01-30 Akim Demaille <akim@epita.fr>
12251
12252 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
12253
12254 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12255
12256 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
12257 of $1.
12258
12259 Changes in response to error report by S. Eken: GLR mode does not
12260 handle negative $ indices or $ indices in embedded rules correctly.
12261 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
12262
12263 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
12264 (b4_rhs_location): Ditto.
12265 (yyfill): New function to copy from stack tree into array
12266 incrementally.
12267 (yyuserAction): Modify to allow incremental move of semantic values
12268 to rhs array when in GLR mode.
12269 Define YYFILL to use in user-defined actions to fill semantic array
12270 as needed.
12271 Remove dummy use of yystack, as there is now a guaranteed use.
12272 (yydoAction): Modify to allow incremental move of semantic values
12273 to rhs array when in GLR mode.
12274 (yyresolveAction): Ditto.
12275 (yyglrShiftDefer): Update comment.
12276 (yyresolveStates): Use X == NULL for pointers, not !X.
12277 (yyglrReduce): Ditto.
12278 (yydoAction): Ditto
12279
12280 * tests/glr-regr1.at: Rename to ...
12281 * tests/glr-regression.at: Add new regression test for the problems
12282 described above (adapted from S. Eken).
12283 Update copyright notice.
12284 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
12285 * tests/Makefile.am: Ditto.
12286
12287 2003-01-28 Paul Eggert <eggert@twinsun.com>
12288
12289 * data/lalr1.cc: Do not use @output_header_name@ unless
12290 b4_defines_flag is set. This fixes two bugs reported by
12291 Tim Van Holder in
12292 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
12293 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
12294
12295 2003-01-21 Paul Eggert <eggert@twinsun.com>
12296
12297 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
12298 we don't need to worry about yyerrlab1 being reported as an
12299 "unused label" by non-GCC C compilers. The downside is that if
12300 locations are used then a couple of statements are duplicated each
12301 time YYERROR is invoked, but the upside is that the warnings
12302 should vanish.
12303 (yyerrlab1): Move code to YERROR.
12304 (yyerrlab2): Remove. Change uses back to yyerrlab1.
12305 This reverts some of the 2002-12-27 change.
12306
12307 2003-01-17 Paul Eggert <eggert@twinsun.com>
12308
12309 * src/output.c (symbol_printers_output): Fix typo that led
12310 to core dump. Problem reported by Antonio Rus in
12311 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
12312
12313 2003-01-13 Akim Demaille <akim@epita.fr>,
12314 Quoc Peyrot <chojin@lrde.epita.fr>,
12315 Robert Anisko <anisko_r@lrde.epita.fr>
12316
12317 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
12318 when the stacks contain one element, as the loop would otherwise
12319 free the last state, and then use the top state (the one we just
12320 popped). This means that the initial elements will not be freed
12321 explicitly, as is the case in yacc.c; it is not a problem, as
12322 these elements have fake values.
12323
12324 2003-01-11 Paul Eggert <eggert@twinsun.com>
12325
12326 * NEWS: %expect-violations are now just warnings, reverting
12327 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
12328 bootstrapping problem reported by Matthias Klose; see
12329 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
12330 * src/conflicts.c (conflicts_print): Likewise.
12331 * tests/conflicts.at (%expect not enough, %expect too much,
12332 %expect with reduce conflicts): Likewise.
12333 * doc/bison.texinfo (Expect Decl): Document this. Also mention
12334 that the warning is enabled if the number of conflicts changes
12335 (not necessarily increases).
12336
12337 * src/getargs.c (version): Update copyright year.
12338
12339 2003-01-09 Akim Demaille <akim@epita.fr>
12340
12341 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
12342
12343 2003-01-08 Paul Eggert <eggert@twinsun.com>
12344
12345 * Makefile.maint (WGETFLAGS):
12346 New macro, containing "-C off" to disable proxy caches.
12347 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
12348 (rel-check): Use $(WGET) instead of wget.
12349
12350 2003-01-06 Paul Eggert <eggert@twinsun.com>
12351
12352 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
12353 the GLR paper of Scott, Johnstone and Hussain.
12354
12355 2003-01-04 Paul Eggert <eggert@twinsun.com>
12356
12357 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
12358 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
12359 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
12360 (EXTRA_LIBRARIES): New var, for liby.a.
12361 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
12362 (EXTRA_SCRIPTS): New var, for yacc.
12363
12364 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
12365 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
12366 Problem reported by Nelson H. F. Beebe.
12367
12368 2003-01-03 Paul Eggert <eggert@twinsun.com>
12369
12370 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
12371 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
12372 when compiling Bison 1.875's `bitset bset = obstack_alloc
12373 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
12374
12375 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
12376 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
12377 grow to a huge size with typical invocation.
12378
12379 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
12380 Use the pattern recommended by Autoconf 2.57, except also protect
12381 against double-definition.
12382 * src/system.h: Likewise.
12383 Portability issues reported by Nelson H. F. Beebe.
12384
12385 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
12386 All uses changed. Provide a definition in both C and C++.
12387 (yytrue, yyfalse): Define even if defined (__cplusplus).
12388
12389 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
12390 Reported by Nelson H. F. Beebe.
12391
12392 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
12393
12394 2003-01-02 Paul Eggert <eggert@twinsun.com>
12395
12396 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
12397 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
12398 Bug reported by Nelson H. F. Beebe.
12399
12400 2003-01-01 Paul Eggert <eggert@twinsun.com>
12401
12402 * Version 1.875.
12403
12404 2002-12-30 Paul Eggert <eggert@twinsun.com>
12405
12406 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
12407 Moved here from...
12408 (<INITIAL>","): Here. This causes stray "," to be treated
12409 more uniformly.
12410
12411 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
12412 last brace in braced code when not in Yacc mode, for compatibility
12413 with Bison 1.35. This resurrects the 2001-12-15 patch to
12414 src/reader.c.
12415
12416 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
12417 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
12418
12419 2002-12-28 Paul Eggert <eggert@twinsun.com>
12420
12421 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
12422 that of SYM's type. This fixes Debian bug 168069, reported by
12423 Thomas Olsson.
12424
12425 2002-12-28 Paul Eggert <eggert@twinsun.com>
12426
12427 Version 1.75f.
12428
12429 Switch back to the Yacc style of conflict reports, undoing some
12430 of the 2002-07-30 change.
12431 * doc/bison.texinfo (Understanding): Use Yacc style for
12432 conflict reports. Also, use new way of locating rules.
12433 * src/conflicts.c (conflict_report):
12434 Renamed from conflict_report_yacc, removing the old
12435 'conflict_report'. Translate the entire conflict report at once,
12436 so that we don't assume that "," has the same interpretation in
12437 all languages.
12438 (conflicts_output): Use Yacc-style conflict report for each state,
12439 instead of our more-complicated style.
12440 (conflicts_print): Use Yacc-style conflict report, except print
12441 the input file name when not emulating Yacc.
12442 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
12443 Conflicted Reduction, %expect not enough, %expect too much,
12444 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
12445 * tests/existing.at (GNU Cim Grammar): Likewise.
12446 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
12447
12448 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
12449 fatal): Don't invoke fflush; it's not needed and it might even be
12450 harmful for stdout, as stdout might not be open.
12451 * src/reduce.c (reduce_print): Likewise.
12452
12453 2002-12-27 Paul Eggert <eggert@twinsun.com>
12454
12455 Fix a bug where error locations were not being recorded correctly.
12456 This problem was originally reported by Paul Hilfinger in
12457 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
12458
12459 * data/yacc.c (yyparse): New local var yylerrsp, to record the
12460 top of the location stack's error locations.
12461 (yyerrlab): Set it. When discarding a token, push its location
12462 onto yylerrsp so that we don't lose track of the error's end.
12463 (yyerrlab1): Now is only the target of YYERROR, so that we can
12464 properly record the location of the action that failed. For GCC
12465 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
12466 GCC warning about yyerrlab1 being unused if YYERROR is unused.
12467 (yyerrlab2): New label, which yyerrlab now falls through to.
12468 Compute the error's location by applying YYLLOC_DEFAULT to
12469 the locations of all the symbols that went into the error.
12470 * doc/bison.texinfo (Location Default Action): Mention that
12471 YYLLOC_DEFAULT is also invoked for syntax errors.
12472 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12473 Error locations include the locations of all the tokens that were
12474 discarded, not just the last token.
12475
12476 2002-12-26 Paul Eggert <eggert@twinsun.com>
12477
12478 * src/files.c: Include quote.h.
12479 (compute_output_file_names): Warn if we detect conflicting
12480 outputs to the same file. This should catch the misunderstanding
12481 exemplified by Debian Bug 165349, reported by Bruce Stephens..
12482
12483 * src/conflicts.c (conflicts_print): If the user specifies
12484 "%expect N", report an error if there are any reduce/reduce
12485 conflicts. This is what the manual says should happen.
12486 This fixes Debian bug 130890, reported by Anthony DeRobertis.
12487 * tests/conflicts.at (%expect with reduce conflicts): New test.
12488
12489 Don't use m4_include on relative file names, as it doesn't work as
12490 desired if there happens to be a file with that name under ".".
12491
12492 * m4sugar/version.m4: Remove; it was included but it wasn't used.
12493 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
12494 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
12495 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
12496 * src/output.c (output_skeleton): Use full path names when
12497 specifying a file to include; don't rely on include path, as
12498 it's unreliable when the working file contains a file with
12499 that name.
12500
12501 2002-12-25 Paul Eggert <eggert@twinsun.com>
12502
12503 Remove obsolete references to bison.simple and bison.hairy.
12504 Problem mentioned by Aubin Mahe in
12505 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
12506 * data/glr.c: Comment fix.
12507 * doc/bison.1: Remove references. Also, mention "yacc".
12508
12509 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
12510 with -g option.
12511
12512 * src/parse-gram.y (declaration): Use enum "report_states" rather
12513 than its numeric value 1.
12514
12515 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
12516 opening a new one. This fixes Debian bug 165349, reported by
12517 Bruce Stephens.
12518
12519 2002-12-24 Paul Eggert <eggert@twinsun.com>
12520
12521 Version 1.75e.
12522
12523 * Makefile.maint (cvs-update): Don't assume that the shell
12524 supports $(...), as Solaris sh doesn't.
12525
12526 * src/parse-gram.y (lloc_default): Remove test for empty
12527 nonterminals at the end, since it didn't change the result.
12528
12529 2002-12-24 Paul Eggert <eggert@twinsun.com>
12530
12531 If the user does not define YYSTYPE as a macro, Bison now declares it
12532 using typedef instead of defining it as a macro. POSIX requires this.
12533 For consistency, YYLTYPE is also declared instead of defined.
12534
12535 %union directives can now have a tag before the `{', e.g., the
12536 directive `%union foo {...}' now generates the C code
12537 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
12538 The default union tag is `YYSTYPE', for compatibility with Solaris 9
12539 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
12540 instead of `yyltype'.
12541
12542 `yystype' and `yyltype' are now obsolescent macros instead of being
12543 typedefs or tags; they are no longer documented and will be
12544 withdrawn in a future release.
12545
12546 * data/glr.c (b4_location_type): Remove.
12547 (YYSTYPE): Renamed from yystype.
12548 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
12549 (struct YYLTYPE): Renamed from struct yyltype.
12550 (YYLTYPE): Renamed from yyltype.
12551 (yyltype, yystype): New (and obsolescent) macros,
12552 for backward compatibility.
12553 * data/yacc.c: Likewise.
12554
12555 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
12556 does not specify a union tag. This is for compatibility with
12557 Solaris 9 yacc.
12558
12559 * src/parse-gram.y (add_param): 2nd arg is now char * not char
12560 const *, since it is now modified by stripping surrounding { }.
12561 (current_braced_code): Remove.
12562 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
12563 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
12564 trailing " {...}". Now of type <chars>.
12565 (grammar_declaration): Adjust to bundled tokens.
12566 (code_content): Remove; stripping is now done by add_param.
12567 (print_token_value): Print contents of bundled tokens.
12568 (token_name): New function.
12569
12570 * src/reader.h (braced_code, current_braced_code): Remove.
12571 (token_name): New decl.
12572
12573 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
12574 token_type, not braced_code code_kind. All uses changed.
12575 (SC_PRE_CODE): New state, for scanning after a keyword that
12576 has (or usually has) an immediately-following braced code.
12577 (token_type): New local var, to keep track of which token type
12578 to return when scanning braced code.
12579 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
12580 <INITIAL>"%parse-param", <INITIAL>"%printer",
12581 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
12582 instead of returning a token type immediately.
12583 (<INITIAL>"{"): Set token type.
12584 (<SC_BRACED_CODE>"}"): Use it.
12585 (handle_action_dollar, handle_action_at): Now returns bool
12586 indicating success. Fail if ! current_rule; this prevents a core dump.
12587 (handle_symbol_code_dollar, handle_symbol_code_at):
12588 Remove; merge body into caller.
12589 (handle_dollar, handle_at): Complain in invalid contexts.
12590
12591 * NEWS, doc/bison.texinfo: Document the above.
12592 * NEWS: Fix years and program names in copyright notice.
12593
12594 2002-12-17 Paul Eggert <eggert@twinsun.com>
12595
12596 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
12597 Reporting, Table of Symbols): Omit mentions of %lex-param and
12598 %parse-param from the documentation for now.
12599
12600 2002-12-15 Paul Eggert <eggert@twinsun.com>
12601
12602 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
12603 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
12604 lookahead symbol, and which sets yychar in parser actions) and it
12605 disagreed with the Bison documentation. Bug
12606 reported by Andrew Walrond.
12607
12608 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
12609 as the caller now does that.
12610 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
12611 (YYEMPTY): Parenthesize right hand side, since others use it.
12612 (yyparse): Don't assume that our generated code is the only code
12613 that sets yychar.
12614
12615 2002-12-13 Paul Eggert <eggert@twinsun.com>
12616
12617 Version 1.75d.
12618
12619 POSIX requires a "yacc" command.
12620 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
12621 (MOSTLYCLEANFILES): Add yacc.
12622 (yacc): New rule.
12623 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
12624 as an alias for bison y.
12625
12626 * po/LINGUAS: Add da.
12627
12628 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
12629 problem with latest <getopt.h>.
12630 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
12631
12632 * doc/fdl.texi: Upgrade to 1.2.
12633 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
12634 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
12635 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
12636 gnulib.
12637 * config/install-sh: Sync with autotools.
12638
12639 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
12640 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
12641 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
12642 locations are requested.
12643 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
12644 locations are requested.
12645
12646 2002-12-12 Paul Eggert <eggert@twinsun.com>
12647
12648 Remove unportable casts and storage allocation tricks.
12649 While we're at it, remove almost all casts, since they
12650 usually aren't needed and are a sign of trouble.
12651
12652 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
12653
12654 * src/derives.c (derives_compute): Do not subtract NTOKENS from
12655 the pointer DSET returned by malloc; this isn't portable.
12656 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
12657 Similarly for DERIVES.
12658 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
12659 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
12660 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
12661
12662 * src/derives.c (derives_compute): Do not bother invoking
12663 int_of_rule_number, since rule numbers are integers.
12664
12665 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
12666 rather than XMALLOC (char, N).
12667
12668 * src/files.c (filename_split): Rewrite to avoid cast.
12669
12670 * src/gram.h (symbol_number_as_item_number,
12671 item_number_as_symbol_number, rule_number_as_item_number,
12672 item_number_as_rule_number):
12673 Now inline functions rather than macros, to avoid casts.
12674 * src/state.h (state_number_as_int): Likewise.
12675 * src/tables.c (state_number_to_vector_number,
12676 symbol_number_to_vector_number): Likewise.
12677
12678 * src/gram.h (int_of_rule_number): Remove; no longer used.
12679
12680 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
12681 since the resulting storage is always stored into.
12682
12683 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
12684 where it's needed.
12685
12686 * src/muscle_tab.c (muscle_m4_output):
12687 Now inline. Return bool, not int.
12688 * src/state.c (state_compare): Likewise.
12689 * src/symtab.c (symbol_check_defined,
12690 symbol_check_alias_consistency, symbol_pack, symbol_translation,
12691 hash_compare_symbol, hash_symbol):
12692 Likewise.
12693 * src/uniqstr.c (uniqstr_print): Likewise.
12694 * src/muscle_tab.c (muscle_m4_output_processor):
12695 New function, to avoid casts.
12696 * src/state.c (state_comparator, stage_hasher): Likewise.
12697 * src/symtab.c (symbol_check_defined_processor,
12698 symbol_check_alias_consistency_processor, symbol_pack_processor,
12699 symbol_translation_processor, hash_symbol_comparator,
12700 hash_symbol_hasher): Likewise.
12701 * src/uniqstr.c (uniqstr_print_processor): Likewise.
12702 * src/muscle_tab.c (muscles_m4_output):
12703 Use new functions instead of casting old functions unportably.
12704 * src/state.c (state_hash_new): Likewise.
12705 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
12706 symbols_token_translations_init):
12707 Likewise.
12708 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
12709
12710 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
12711 var instead of casting to long, to avoid casts.
12712 (prepare_states): Use MALLOC rather than alloca, so that we don't
12713 have to worry about alloca.
12714 * src/state.c (state_hash_lookup): Likewise.
12715
12716 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
12717 local var instead of casting to unsigned char, to avoid casts.
12718
12719 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
12720 STATE_ALLOC): Remove.
12721 (transitions_new, errs_new, reductions_new, state_new): Use malloc
12722 rather than calloc, and use offsetof to avoid allocating slightly
12723 too much storage.
12724 (state_new): Initialize all members.
12725
12726 * src/state.c (state_hash): Use unsigned accumulator, not signed.
12727
12728 * src/symtab.c (symbol_free): Remove; unused.
12729 (symbol_get): Remove cast in lhs of assignment.
12730 (symbols_do): Now static. Accept generic arguments, not
12731 hashing-related ones.
12732
12733 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
12734 (symbol_processor): Remove.
12735 (symbols_do): Remove decl; now static.
12736
12737 * src/system.h (alloca): Remove; decl no longer needed.
12738 (<stddef.h>): Include, for offsetof.
12739 (<inttypes.>, <stdint.h>): Include if available.
12740 (uintptr_t): New type, if system lacks it.
12741 (CALLOC, MALLOC, REALLOC): New macros.
12742 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
12743 new macros.
12744
12745 * src/tables.c (table_size): Now int, to pacify GCC.
12746 (table_grow, table_ninf_remap): Use signed table size.
12747 (save_row): Don't bother initializing locals when not needed.
12748 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
12749 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
12750
12751 * src/vcg.h: Correct misspellings.
12752
12753 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
12754
12755
12756 * src/getargs.c (getargs): Don't assume EOF == -1.
12757
12758 2002-12-09 Paul Eggert <eggert@twinsun.com>
12759
12760 Change identifier spellings to avoid collisions with names
12761 that are reserved by POSIX.
12762
12763 Don't use names ending in _t, since POSIX reserves them.
12764 For consistency, remove _e and _s endings -- they're weren't
12765 needed to remove ambiguity. All uses changed.
12766 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
12767 turn was just renamed from struniq_t.
12768 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
12769 which in turn was just renamed from struniq_processor_t.
12770 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
12771 in turn was renamed from hash_compare_struniq_t.
12772 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
12773 (state_list): Renamed from state_list_t.
12774 * src/assoc.h (assoc): Renamed from assoc_t.
12775 * src/conflicts.c (enum conflict_resolution): Renamed from
12776 enum conflict_resolution_e.
12777 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
12778 (rule_list): Renamed from rule_list_t.
12779 * src/getargs.h (enum trace): Renamed from enum trace_e.
12780 (enum report): Renamed from enum report_e.
12781 * src/gram.h (item_number): Renamed from item_number_t.
12782 (rule_number): Renamed from rule_number_t.
12783 (struct rule_s): Remove the "rule_s" part; not used.
12784 (rule): Renamed from rule_t.
12785 (rule_filter): Renamed from rule_filter_t.
12786 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
12787 (goto_list): Renamed from goto_list_t.
12788 * src/lalr.h (goto_number): Renamed from goto_number_t.
12789 * src/location.h (location): Renamed from location_t.
12790 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
12791 and moved here from:
12792 * src/muscle_tab.h (muscle_entry_t): here.
12793 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
12794 (rule_list): Renamed from rule_list_t.
12795 * src/print_graph.c (static_graph): Renamed from graph.
12796 * src/reader.h (braced_code): Renamed from braced_code_t.
12797 Remove brace_code_e tag.
12798 * src/relation.h (relation_node): Renamed from relation_node_t.
12799 (relation_nodes): Renamed from relation_nodes_t.
12800 (relation): Renamed from relation_t.
12801 * src/state.h (state_number): Renamed from state_number_t.
12802 (struct state): Renamed from struct state_s.
12803 (state): Renamed from state_t.
12804 (transitions): Renamed from transitions_t. Unused (and
12805 misspelled) transtion_s tag removed.
12806 (errs): Renamed from errs_t. Unused errs_s tag removed.
12807 (reductions): Renamed from reductions_t. Unused tag
12808 reductions_s removed.
12809 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
12810 (struct symbol_list): Renamed from struct symbol_list_s.
12811 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
12812 (struct symbol): Renamed from struct symbol_s.
12813 (symbol): Renamed from symbol_t.
12814 * src/tables.c (vector_number): Renamed from vector_number_t.
12815 (action_number): Renamed from action_t.
12816 * src/tables.h (base_number): Renamed from base_t.
12817 * src/vcg.h (enum color): Renamed from enum color_e.
12818 (enum textmode): Renamed from enum textmode_e.
12819 (enum shape): Renamed from enum shape_e.
12820 (struct colorentry): Renamed from struct colorentry_s.
12821 (struct classname): Renamed from struct classname_s.
12822 (struct infoname): Renamed from struct infoname_s.
12823 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
12824 (enum decision): Renamed from enum decision_e.
12825 (enum orientation): Renamed from enum orientation_e.
12826 (enum alignment): Renamed from enum alignment_e.
12827 (enum arrow_mode): Renamed from enum arrow_mode_e.
12828 (enum crossing_type): Renamed from enum crossing_type_e.
12829 (enum view): Renamed from enum view_e.
12830 (struct node): Renamed from struct node_s.
12831 (node): Renamed from node_t.
12832 (enum linestyle): Renamed from enum linestyle_e.
12833 (enum arrowstyle): Renamed from enum arrowstyle_e.
12834 (struct edge): Renamed from struct edge.
12835 (edge): Renamed from edge_t.
12836 (struct graph): Renamed from struct graph_s.
12837 (graph): Renamed from graph_t.
12838 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
12839 Rename value_t -> value.
12840 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
12841 value_t_as_yystype -> value_as_yystype.
12842
12843 Don't include <errno.h> in the mainstream code, since it
12844 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
12845 * lib/get-errno.c, lib/get-errno.h: New files.
12846 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
12847 get-errno.c.
12848 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
12849 * src/output.c (output_skeleton): Likewise.
12850 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
12851 instead of errno.
12852 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
12853 Likewise.
12854 (handle_action_dollar, handle_action_at): Likewise.
12855 * src/system.h: Do not include <errno.h>.
12856 (TAB_EXT): Renamed from EXT_TAB.
12857 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
12858
12859 Avoid str[a-z]*, since <string.h> reserves that name space.
12860 Change all instances of "struniq" in names to "uniqstr", and
12861 likewise for "STRUNIQ" and "UNIQSTR".
12862 * src/uniqstr.c: Renamed from src/struniq.c.
12863 * src/uniqstr.h: Renamed from src/struniq.h.
12864 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
12865 * src/files.c (strsuffix): Remove; unused.
12866 (concat2): Renamed from stringappend. Now static.
12867 * src/files.h (strsuffix, stringappend): Remove; unused.
12868 * src/parse-gram.y (<chars>): Renamed from <string>.
12869 (<uniqstr>): Renamed from <struniq>.
12870 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
12871 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
12872 (struct graph_s.expand): Renamed from struct graph_s.stretch.
12873 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
12874 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
12875 (N_EXPAND): Renamed from N_STRETCH.
12876
12877 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
12878 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
12879 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
12880 Remove; unused.
12881 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
12882 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
12883 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
12884 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
12885 (BASE_MAXIMUM): Renamed from BASE_MAX.
12886 (BASE_MINIMUM): Renamed from BASE_MIN.
12887 (ACTION_MAX): Remove; unused.
12888 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
12889 Unnecessary casts removed from above defines.
12890
12891
12892 Fix misspelling in names.
12893 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
12894 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
12895 G_NODE_ALIGNEMENT.
12896
12897
12898 * lib/timevar.c (timevar_report): Renamed from time_report,
12899 for consistency with other names.
12900 * lib/timevar.h (timevar_report): New decl.
12901 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
12902
12903
12904 Sort include-file uses.
12905
12906 Reorder all include files under src to be in the order "system.h".
12907 then the ../lib include files in angle brackets (alphabetized),
12908 then the . include files in double-quotes (alphabetized). Fix
12909 dependency breakages encountered in this process, as follows:
12910 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
12911 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
12912 * src/state.h: Include "symtab.h".
12913
12914 2002-12-08 Paul Eggert <eggert@twinsun.com>
12915
12916 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
12917 since this causes problems when __file__ contains character
12918 sequences like "@" that are treated specially by src/scan-skel.l.
12919 Instead, just use the file's basename. This fixes the bug
12920 reported by Martin Mokrejs in
12921 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
12922
12923 2002-12-06 Paul Eggert <eggert@twinsun.com>
12924
12925 Add support for rules that do not have trailing semicolons, as
12926 POSIX requires. Improve the quality of locations in Bison
12927 diagnostics.
12928
12929 * src/location.c: Include <quotearg.h>.
12930 (empty_location): Now const.
12931 (location_print): New function. Follow the recommendation of the
12932 GNU Coding Standards for locations that span file boundaries.
12933 * src/location.h: Do not include <quotearg.h>; no longer needed.
12934 (boundary): New type.
12935 (location_t): Use it. This allows locations to span file boundaries.
12936 All member uses changed: file -> start.file or end.file (as needed),
12937 first_line -> start.line, first_column -> start.column,
12938 last_line -> end.line, last_column -> end.column.
12939 (equal_boundaries): New function.
12940 (LOCATION_RESET, LOCATION_STEP): Remove.
12941 (LOCATION_PRINT): Remove. All callers changed to use location_print.
12942 (empty_location): Now const.
12943 (location_print): New decl.
12944 * src/parse-gram.y (lloc_default): New function, which handles
12945 empty locations more accurately.
12946 (YYLLOC_DEFAULT): Use it.
12947 (%token COLON): Remove.
12948 (%token ID_COLON): New token.
12949 (rules): Use it.
12950 (declarations, rules): Remove trailing semicolon.
12951 (declaration, rules_or_grammar_declaration):
12952 Allow empty (";") declaration.
12953 (symbol_def): Remove empty actions; no longer needed.
12954 (rules_or_grammar_declaration): Remove trailing semicolon.
12955 (semi_colon.opt): Remove.
12956 * src/reader.h: Include location.h.
12957 (scanner_cursor): New decl.
12958 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
12959 rolling our own.
12960 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
12961 of *loc.
12962 (STEP): Remove. No longer needed, now that adjust_location does
12963 the work. All uses removed.
12964 (scanner_cursor): New var.
12965 (adjust_location): Renamed from extend_location. It now sets
12966 *loc and adjusts the scanner cursor. All uses changed.
12967 Don't bother testing for CR.
12968 (handle_syncline): Remove location arg; now updates scanner cursor.
12969 All callers changed.
12970 (unexpected_end_of_file): Now accepts start boundary of token or
12971 comment, not location. All callers changed. Update scanner cursor,
12972 not the location.
12973 (SC_AFTER_IDENTIFIER): New state.
12974 (context_state): Renamed from c_context. All uses changed.
12975 (id_loc, code_start, token_start): New local vars.
12976 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
12977 processing of Yacc white space and equivalents here.
12978 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
12979 instead of returning ID immediately, since we need to search for
12980 a subsequent colon.
12981 (<INITIAL>"'", "\""): Save token_start.
12982 (<INITIAL>"%{", "{", "%%"): Save code_start.
12983 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
12984 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
12985 BEGIN context_state at end, not INITIAL.
12986 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
12987 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
12988 Return correct token start.
12989 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
12990 the start of a character, string or multiline comment is found.
12991 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
12992 Reduction): Adjust reported locations to match the more-precise
12993 results now expected.
12994 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
12995 * tests/reduce.at (Useless Rules, Reduced Automaton,
12996 Underivable Rules): Likewise.
12997 * tests/regression.at (Invalid inputs): No longer `expecting ";"
12998 or "|"' now that so many other tokens are allowed by the new grammar.
12999
13000 * src/complain.h (current_file): Remove duplicate decl;
13001 current_file is now owned by files.h.
13002 * src/complain.c, src/scan-gram.l: Include files.h.
13003
13004 2002-12-06 Paul Eggert <eggert@twinsun.com>
13005
13006 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
13007 promotes to int; it might be unsigned int.
13008 * data/yacc.c (yy_reduce_print): Likewise.
13009
13010 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
13011 be #defined in the prologue, not in the Bison declarations.
13012 This fixes Debian Bug 102878, reported by Shaul Karl.
13013
13014 2002-12-02 Paul Eggert <eggert@twinsun.com>
13015
13016 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
13017 * lib/strtoul.c: New file, from gnulib.
13018 This fixes a porting bug reported by Peter Klein in
13019 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
13020
13021 2002-11-30 Paul Eggert <eggert@twinsun.com>
13022
13023 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
13024 and put only a forward declaration in the prologue. This is for
13025 consistency with the other scanner helper functions.
13026
13027 Type clashes now generate warnings, not errors, since it
13028 appears that POSIX may allow some grammars with type clashes.
13029 * src/reader.c (grammar_current_rule_check): Warn about
13030 type clashes instead of complaining.
13031 * tests/input.at (Type Clashes): Expect warnings, not complaints.
13032
13033 Add Yacc library, since POSIX requires it.
13034 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
13035 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
13036 * lib/main.c, lib/yyerror.c: New files.
13037
13038 gram_error can be static; it need not be extern.
13039 * src/reader.h (gram_error): Remove decl.
13040 * src/parse-gram.y (gram_error): Now static. Add static decl.
13041 (print_token_value): Omit parameter names from forward decl,
13042 for consistency.
13043
13044 2002-11-29 Paul Eggert <eggert@twinsun.com>
13045
13046 * doc/bison.texinfo: Emphasize that yylex and yyerror must
13047 be declared before being used. E.g., one should typically
13048 declare them in the prologue. Use GNU coding style in examples.
13049 Put "const" consistently after the type it modifies. Mention
13050 that C99 supports "inline". Mention that yyerror traditionally
13051 returns "int".
13052
13053 %parse-param and %lex-param now take just one argument, the
13054 declaration; the argument name is deduced from the declaration.
13055
13056 * doc/bison.texinfo (Parser Function, Pure Calling, Error
13057 Reporting, Table of Symbols): Document this.
13058 * src/parse-gram.y (add_param): New function.
13059 (COMMA): Remove.
13060 (declaration): Implement new rule for %parse-param and %lex-param.
13061 * src/scan-gram.l: "," now elicits a warning, rather than being
13062 a token; this is more compatible with byacc.
13063 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
13064
13065 2002-11-27 Paul Eggert <eggert@twinsun.com>
13066
13067 Rename identifiers to avoid real and potential collisions.
13068
13069 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
13070 to avoid collision with lex macro described by Bruce Lilly in
13071 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
13072 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
13073 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
13074 * src/parse-gram.y (print_token_value): Renamed from yyprint.
13075 All uses changed.
13076 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
13077 The name "yycontrol" violates the name space rules, and this stuff
13078 wasn't being used anyway.
13079 (input): Remove action; this stuff wasn't being used.
13080 (gram_error): Rename local variable yylloc -> loc.
13081 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
13082 (YY_DECL): Don't use "yy" at start of local variables.
13083 All uses changed, e.g., yylloc -> loc.
13084 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
13085 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
13086 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
13087 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
13088
13089 * src/parse-gram.y (gram_error): loc is now const *.
13090 * src/reader.h (gram_error): Likewise.
13091
13092 2002-11-24 Paul Eggert <eggert@twinsun.com>
13093
13094 Version 1.75c.
13095
13096 * tests/actions.at (Actions after errors): Use an output format
13097 more similar to that of the Printers and Destructors test.
13098 Test the position of the ';' token too.
13099 (Printers and Destructors): Likewise.
13100 (Printers and Destructors: %glr-parser): Remove for now, to avoid
13101 unnecessarily alarming people when the test fails.
13102
13103 * data/yacc.c (yyerrlab1): Move this label down, so that the
13104 parser does not discard the lookahead token if the user code
13105 invokes YYERROR. This change is required for POSIX conformance.
13106
13107 * lib/error.c: Sync with gnulib.
13108
13109 2002-11-22 Paul Eggert <eggert@twinsun.com>
13110
13111 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
13112 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
13113 * lib/xmalloc.c: Likewise.
13114
13115 2002-11-20 Paul Eggert <eggert@twinsun.com>
13116
13117 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
13118
13119 2002-11-20 Paul Eggert <eggert@twinsun.com>
13120
13121 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
13122 should use `if (! x) abort ();' rather than `assert (x);', and
13123 anyway it's one less thing to worry about configuring.
13124
13125 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
13126 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
13127 and replace all instances of assert with abort.
13128 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
13129 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
13130
13131 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
13132 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
13133 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
13134 hash_find_entry, hash_rehash, hash_insert): Likewise.
13135 * src/conflicts.c (resolve_sr_conflict): Likewise.
13136 * src/lalr.c (set_goto_map, map_goto): Likewise.
13137 * src/nullable.c (nullable_compute): Likewise.
13138 * src/output.c (prepare_rules, token_definitions_output): Likewise.
13139 * src/reader.c (packgram, reader): Likewise.
13140 * src/state.c (state_new, state_free, state_transitions_set,
13141 state_reduction_find): Likewise.
13142 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
13143 symbol_pack): Likewise.
13144 * src/tables.c (conflict_row, pack_vector): Likewise.
13145 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
13146 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
13147 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
13148 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
13149
13150 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
13151 (ARGMATCH_CONSTRAINT): New macro.
13152 (ARGMATCH_ASSERT): Use it.
13153
13154 * src/system.h (verify): New macro.
13155 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
13156 rather than assert.
13157 * src/tables.c (tables_generate): Likewise.
13158
13159 * src/struniq.c (struniq_assert): Now returns void, and aborts
13160 if the assertion is false.
13161 (struniq_assert_p): Remove.
13162 * src/struniq.h: Likewise.
13163
13164 2002-11-18 Paul Eggert <eggert@twinsun.com>
13165
13166 * data/glr.c (yygetLRActions): Replace `yyindex' with
13167 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
13168 This fixes the regression with Sun ONE Studio 7 cc that I reported in
13169 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
13170
13171 2002-11-18 Akim Demaille <akim@epita.fr>
13172
13173 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
13174 space.
13175 From Tim Van Holder.
13176
13177 2002-11-17 Paul Eggert <eggert@twinsun.com>
13178
13179 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
13180 to "SyntaxError" for consistency with my 2002-11-15 change.
13181
13182 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
13183 not define to {}, since this breaks the common use of `YYDPRINTF
13184 ((...));' if a single statement is desired (e.g. before `else').
13185 Work around GCC warnings by surrounding corresponding calls with
13186 {} if needed.
13187 (yyhasResolvedValue): Remove unused function.
13188 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
13189 loop body.
13190 (yyreportSyntaxError): Renamed from yyreportParseError.
13191 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
13192 All uses changed.
13193 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
13194 extern when possible. Remove unused initializations.
13195
13196 2002-11-16 Akim Demaille <akim@epita.fr>
13197
13198 Augment the similarity between GLR and LALR traces.
13199
13200 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
13201 (YY_REDUCE_PRINT): New.
13202 (yyparse): Use them.
13203 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
13204 YYDPRINT here.
13205 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
13206 state reached after the reduction/recovery, since...
13207 (yyparse, yyprocessOneStack): Report the state we are entering in.
13208
13209 2002-11-16 Akim Demaille <akim@epita.fr>
13210
13211 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
13212 Add support for --trace=skeleton.
13213 * src/scan-skel.l: %option debug.
13214 Scan strings of non-@ or \n instead of character by character.
13215 (scan_skel): Handle trace_skeleton.
13216 (QPUTS): New.
13217 (@output_parser_name@, @output_header_name@): ``Restore'' their
13218 support (used to be M4 macros).
13219 * data/yacc.c: Quote larger chunks, a la glr.c.
13220 * data/lalr1.cc: Likewise.
13221 The header guards are no longer available, so use some other
13222 string than `YYLSP_NEEDED'.
13223
13224 2002-11-16 Akim Demaille <akim@epita.fr>
13225
13226 Make the ``Printers and Destructors'' test more verbose, taking
13227 `yacc.c''s behavior as (possibly wrong) reference.
13228
13229 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
13230 instead of fprint on stdout.
13231 Set and report the last_line of the symbols.
13232 Consistently display values and locations.
13233
13234 2002-11-16 Paul Eggert <eggert@twinsun.com>
13235
13236 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
13237
13238 2002-11-15 Paul Eggert <eggert@twinsun.com>
13239
13240 * tests/actions.at (Actions after errors): New test case.
13241
13242 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
13243 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
13244 tests/action.at, tests/calc.at, tests/conflicts.at,
13245 tests/cxx-type.at, tests/regression.at:
13246 "parse error" -> "syntax error" for POSIX compatibility.
13247 "parsing stack overflow..." -> "parser stack overflow" so
13248 that code matches Bison documentation.
13249
13250 2002-11-15 Akim Demaille <akim@epita.fr>
13251
13252 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
13253 take two BRACED_CODE, not two string_content.
13254 Free the scanner's obstack when we are done.
13255 (code_content): New.
13256 * tests/calc.at: Adjust.
13257 * doc/bison.texinfo: Adjust.
13258 Also, make sure to include the `,' for these declarations.
13259
13260 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
13261
13262 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
13263 definition; avoids potential autoreconf problems.
13264
13265 2002-11-15 Akim Demaille <akim@epita.fr>
13266
13267 Always check the value returned by yyparse.
13268
13269 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
13270 returned by yyparse.
13271 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
13272 Adjust calls.
13273 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
13274 returned by yyparse.
13275
13276 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13277
13278 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
13279 on input.at test.
13280
13281 2002-11-14 Paul Eggert <eggert@twinsun.com>
13282
13283 * src/output.c (output_skeleton): Call xfopen instead of
13284 duplicating xfopen's body.
13285
13286 Fix bugs reported by Nelson H. F. Beebe in
13287 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
13288
13289 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
13290 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
13291 Group compiler. Instead, use "$CC -E bar.c". Include the .h
13292 file twice in the grammar, as an extra check.
13293
13294 * tests/input.at (Torturing the Scanner): Surround the
13295 backslash-newline tests with "#if 0", to make it less likely that
13296 we'll run into compiler bugs. Bring back solitary \ inside
13297 comment, but add a closing comment to work around HP C bug. Don't
13298 test backslash-newline in C character constant.
13299
13300 2002-11-14 Akim Demaille <akim@epita.fr>
13301
13302 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
13303 status of the compiler.
13304 Calling `exit 1' is no longer needed.
13305 Reported by Nelson H. F. Beebe.
13306
13307 2002-11-14 Akim Demaille <akim@epita.fr>
13308
13309 * tests/atlocal.in (CPPFLAGS): We have config.h.
13310 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
13311 New.
13312 * tests/actions.at, tests/calc.at, tests/conflicts.at,
13313 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
13314 * tests/regression.at, tests/torture.at: Use them for all the
13315 grammars that are to be compiled.
13316 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
13317 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
13318 * doc/bison.texinfo (GLR Parsers): Document `inline'.
13319
13320 2002-11-14 Akim Demaille <akim@epita.fr>
13321
13322 * doc/bison.texinfo: Various formatting changes (alignments in
13323 samples, additional @group/@end group, GCS in samples.
13324 Use @deffn instead of simple @table to define the directives,
13325 macros, variables etc.
13326
13327 2002-11-13 Paul Eggert <eggert@twinsun.com>
13328
13329 Fix some bugs reported by Albert Chin-A-Young in
13330 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
13331
13332 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
13333 -o c"; the HP C compiler chatters during compilation.
13334 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
13335 * tests/headers.at (export YYLTYPE): Likewise.
13336
13337 * tests/input.at (Torturing the Scanner): Remove lines containing
13338 solitary backslashes, as they tickle a bug in the HP C compiler.
13339
13340 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
13341 comments, since they're not portable. Use GNU coding style.
13342
13343 2002-11-13 Akim Demaille <akim@epita.fr>
13344
13345 * data/yacc.c: Leave bigger chunks of quoted text.
13346 (YYDSYMPRINTF): New.
13347 Use it to report symbol activities.
13348 * data/glr.c (YYDSYMPRINTF): New.
13349 Use it.
13350
13351 2002-11-12 Paul Eggert <eggert@twinsun.com>
13352
13353 Version 1.75b.
13354
13355 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
13356 (yyglrReduce): Return yyok, not 0.
13357 This should avoid the enumerated-type warnings reported
13358 by Nelson H. F. Beebe in
13359 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
13360
13361 * lib/bbitset.h (BITSET_INLINE): Remove.
13362 * lib/bitset.h [! BITSET_INLINE]: Remove.
13363 (bitset_set, bitset_reset, bitset_test): Rename local vars
13364 to avoid shadowing warnings by GCC.
13365
13366 * data/glr.c (inline): Remove #define. It's the user's
13367 responsibility to #define it away, just like 'const'.
13368 This fixes one of the bugs reported by Nelson H. F. Beebe in
13369 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
13370
13371 * Makefile.maint (po-check): Scan .l and .y files instead of the
13372 .c and the .h files that they generate. This fixes the bug
13373 reported by Tim Van Holder in:
13374 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
13375 Look for N_ as well as for _. Try to avoid matching #define for
13376 N_ and _.
13377 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
13378 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
13379 * src/scan-gram.l: Revamp regular expressions so that " and '
13380 do not confuse xgettext.
13381
13382 * src/struniq.h (struniq_new): Do not declare the return type
13383 to be 'const'; this violates the C standard.
13384 * src/struniq.c (struniq_new): Likewise.
13385
13386 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
13387
13388 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
13389 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
13390 linker.
13391
13392 2002-11-12 Akim Demaille <akim@epita.fr>
13393
13394 * Makefile.maint: Sync with Autoconf:
13395 (local_updates): New.
13396
13397 2002-11-12 Akim Demaille <akim@epita.fr>
13398
13399 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
13400
13401 2002-11-12 Akim Demaille <akim@epita.fr>
13402
13403 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
13404 locations.
13405
13406 2002-11-12 Akim Demaille <akim@epita.fr>
13407
13408 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
13409 not yyvalue.
13410
13411 2002-11-12 Akim Demaille <akim@epita.fr>
13412
13413 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
13414 Use it to test the GLR parser.
13415
13416 2002-11-12 Akim Demaille <akim@epita.fr>
13417
13418 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
13419 defines it.
13420 * data/glr.c (yystos): New.
13421 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
13422 (YYDSYMPRINT): New.
13423 (yyval): Don't define it, it is handled via M4.
13424 (yyrecoverParseError): Free verbosely the discarded symbols.
13425 * data/yacc.c (yysymprint): Remove, rather...
13426 (b4_yysymprint_generate): invoke.
13427 * data/c.m4 (b4_yysymprint_generate): New.
13428 Accept pointers as arguments, as opposed to the version from
13429 yacc.c.
13430 (b4_yydestruct_generate): Likewise.
13431 * tests/cations.at (Printers and Destructors): Use Bison directives
13432 instead of CPP macros.
13433 Don't rely on internal details.
13434
13435 2002-11-12 Akim Demaille <akim@epita.fr>
13436
13437 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
13438 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
13439 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
13440 it against YYEMPTY and so forth), work on yytoken (i.e., set
13441 it to YYEMPTY etc.).
13442 (yydestruct): Replace with a b4_yydestruct_generate invocation.
13443 (b4_symbol_actions): Remove.
13444 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
13445 for 0, end-of-input.
13446
13447 2002-11-12 Akim Demaille <akim@epita.fr>
13448
13449 * doc/bison.texinfo (Destructor Decl): New.
13450
13451 2002-11-12 Akim Demaille <akim@epita.fr>
13452
13453 * src/tables.c (tables_generate): Use free for pointers that
13454 cannot be NULL, not XFREE.
13455 (pack_vector): Use assert, not fatal, for bound violations.
13456 * src/state.c (state_new): Likewise.
13457 * src/reader.c (reader): Likewise.
13458 * src/lalr.c (set_goto_map): Likewise.
13459 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
13460 the file name.
13461
13462 2002-11-12 Akim Demaille <akim@epita.fr>
13463
13464 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
13465 Restore.
13466 * src/scan-gram.l (last_string): Is global to the file, not to
13467 yylex.
13468 * src/parse-gram.y (input): Don't append the epilogue here,
13469 (epilogue.opt): do it here, and free the scanner's obstack.
13470 * src/reader.c (epilogue_set): Rename as...
13471 (epilogue_augment): this.
13472 * data/c.m4 (b4_epilogue): Defaults to empty.
13473
13474 2002-11-12 Akim Demaille <akim@epita.fr>
13475
13476 * src/getargs.c (long_options): Remove duplicates.
13477 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
13478 Remove.
13479 * doc/bison.rnh: Remove.
13480 * doc/bison.texinfo (VMS Invocation): Remove.
13481
13482 2002-11-12 Akim Demaille <akim@epita.fr>
13483
13484 * src/struniq.h, src/struniq.c (struniq_t): Is const.
13485 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
13486
13487 Use struniq for symbols.
13488
13489 * src/symtab.h (symbol_t): The tag member is a struniq.
13490 (symbol_type_set): Adjust.
13491 * src/symtab.c (symbol_new): Takes a struniq.
13492 (symbol_free): Don't free the tag member.
13493 (hash_compare_symbol_t, hash_symbol_t): Rename as...
13494 (hash_compare_symbol, hash_symbol): these.
13495 Use the fact that tags as struniqs.
13496 (symbol_get): Use struniq_new.
13497 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
13498 Returns a strniq.
13499 * src/reader.h (merger_list, grammar_currentmerge_set): The name
13500 and type members are struniqs.
13501 * src/reader.c (get_merge_function)
13502 (grammar_current_rule_merge_set): Adjust.
13503 (TYPE, current_type): Are struniq.
13504
13505 Use struniq for file names.
13506
13507 * src/files.h, src/files.c (infile): Split into...
13508 (grammar_file, current_file): these.
13509 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
13510 * src/reduce.c (reduce_print): Likewise.
13511 * src/getargs.c (getargs): Likewise.
13512 * src/complain.h, src/complain.c: Likewise.
13513 * src/main.c (main): Call struniqs_new early enough to use it for
13514 file names.
13515 Don't free the input file name.
13516
13517 2002-11-12 Akim Demaille <akim@epita.fr>
13518
13519 * src/symtab.c (symbol_free): Remove dead deactivated code:
13520 type_name are properly removed.
13521 Don't use XFREE to free items that cannot be NULL.
13522 * src/struniq.h, src/struniq.c: New.
13523 * src/main.c (main): Initialize/free struniqs.
13524 * src/parse-gram.y (%union): Add astruniq member.
13525 (yyprint): Adjust.
13526 * src/scan-gram.l (<{tag}>): Return a struniq.
13527 Free the obstack bit that used to store it.
13528 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
13529
13530 2002-11-11 Paul Eggert <eggert@twinsun.com>
13531
13532 Revamp to fix many (but not all) of the C- and M4-related quoting
13533 problems. Among other things, this fixes the Bison bug reported
13534 by Jan Hubicka when processing the Bash grammar; see:
13535 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
13536
13537 Use new @ escapes consistently. Represent brackets with @{ and @}
13538 rather than @<:@ and @:>@, since this works a bit better with dumb
13539 editors like vi. Represent @ with @@, since @ is now consistently
13540 an escape. Use @oline@ and @ofile@ rather than __oline__ and
13541 __ofile__, to avoid unexpected expansions. Similarly, use @output
13542 rather than #output.
13543
13544 * data/c.m4 (b4_copyright): Omit file name from comment, since
13545 the file name could contain "*/".
13546 (b4_synclines_flag): Don't quote the 2nd argument; it should already
13547 be quoted. All uses changed.
13548
13549 * data/glr.c: Use new @ escapes consistently.
13550 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
13551 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
13552 Remove, since they couldn't handle arbitrary characters in file
13553 names.
13554 * data/lalr1.cc: Likewise.
13555 * data/yacc.c: Likewise.
13556
13557 * src/files.c (output_infix): Remove; all uses removed.
13558 * src/files.h: Likewise.
13559
13560 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
13561 mishandled funny characters in file names, and anyway it isn't
13562 needed any more.
13563 * data/yacc.c: Likewise.
13564 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
13565
13566 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
13567 * data/yacc.c: Likewise.
13568
13569 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
13570 strings now.
13571 (muscle_init): Quote filename as a C string.
13572 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
13573 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
13574 * src/output.c (escaped_file_name_output): New function.
13575 (prepare_symbols): Quote tokens for M4.
13576 (prepare): Don't insert output_infix, output_prefix,
13577 output_parser_name, output_header_name; this is now down by scan-skel.
13578 Insert skeleton as a C string.
13579
13580 * src/output.c (user_actions_output, symbol_destructors_output,
13581 symbol_printers_output): Quote filenames for C and M4.
13582 * src/reader.c (prologue_augment, epilogue_set): Likewise.
13583
13584 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
13585 escapes other than \\ and \'; this simplifies the code.
13586 (<SC_STRING>): Likewise, for \\ and \".
13587 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
13588 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
13589 Use new escapes @{ and @} for [ and ].
13590
13591 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
13592 them with auto vars.
13593 Switch to new escape scheme, where @ is the escape character uniformly.
13594 Abort if a stray escape character is found. Avoid unbounded input
13595 buffer when parsing non-escaped text.
13596
13597 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
13598 __oline__, #output, $@, and @{ do not have unintended meanings.
13599
13600 2002-11-09 Paul Eggert <eggert@twinsun.com>
13601
13602 Fix the test failure due to GCC warnings described in
13603 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
13604 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
13605 evaluate to 0 if it's impossible for NINF to be in the respective
13606 table.
13607 (yygetLRActions, yyrecoverParseError): Use them.
13608
13609 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
13610 counted in the token inserted at end of file. Now takes
13611 location_t *, not location_t, so that the location can be
13612 adjusted. All uses changed.
13613
13614 * tests/regression.at (Invalid inputs): Adjust wording in
13615 diagnostic to match the new behavior.
13616
13617 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
13618 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
13619 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
13620 abort ();'. This reduces the runtime of the "Many lookaheads"
13621 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
13622 GCC 3.2.
13623
13624 2002-11-07 Paul Eggert <eggert@twinsun.com>
13625
13626 * src/parse-gram.y (CHARACTER): Remove unused token.
13627 All uses removed.
13628
13629 * src/scan-gram.l: Remove stack option. We no longer use the
13630 stack, since the stack was never deeper than 1; instead, use the
13631 new auto var c_context to record the stacked value.
13632
13633 Remove nounput option. At an unexpected end of file, we now unput
13634 the minimal input necessary to end cleanly; this simplifies the
13635 code.
13636
13637 Avoid unbounded token sizes where this is easy.
13638
13639 (unexpected_end_of_file): New function.
13640 Use it to systematize the error message on unexpected EOF.
13641 (last-string): Now auto, not static.
13642 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
13643 (scanner_last_string_free): Remove; not used.
13644 (percent_percent_count): Move decl to just before use.
13645 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
13646 not the (never otherwised-used) CHARACTER.
13647
13648 2002-11-07 Akim Demaille <akim@epita.fr>
13649
13650 Let yyerror always receive the msg as last argument, so that
13651 yyerror can be variadic.
13652
13653 * data/yacc.c (b4_yyerror_args): New.
13654 Use it when calling yyerror.
13655 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
13656 Use it when calling yyerror.
13657 * doc/bison.texinfo (Error Reporting): Adjust.
13658 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
13659 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
13660
13661 2002-11-06 Akim Demaille <akim@epita.fr>
13662
13663 #line should have quoted strings.
13664 Ideally, this should be done by m4_quotearg.
13665
13666 * src/scan-skel.l: Include quotearg.h.
13667 Quote __ofile__.
13668 * src/output.c (symbol_printers_output)
13669 (symbol_destructors_output): Quote the file name.
13670
13671 2002-11-06 Akim Demaille <akim@epita.fr>
13672
13673 * tests/regression.at (Invalid inputs): Adjust to the recent
13674 messages.
13675
13676 2002-11-06 Akim Demaille <akim@epita.fr>
13677
13678 Restore --no-lines.
13679 Reported by Jim Kent.
13680
13681 * data/c.m4 (b4_syncline): New.
13682 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
13683 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
13684 * src/output.c (user_actions_output): Likewise.
13685 (prepare): Define 'b4_synclines_flag'.
13686 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
13687
13688 2002-11-06 Akim Demaille <akim@epita.fr>
13689
13690 * src/main.c (main): Free `infile'.
13691 * src/scan-gram.l (handle_syncline): New.
13692 Recognize `#line'.
13693 * src/output.c (user_actions_output, symbol_destructors_output)
13694 (symbol_printers_output): Use the location's file name, not
13695 infile.
13696 * src/reader.c (prologue_augment, epilogue_set): Likewise.
13697
13698 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13699
13700 * src/tables.c (matching_state): Don't allow states to match if
13701 either has GLR conflict entries.
13702
13703 2002-11-05 Paul Eggert <eggert@twinsun.com>
13704
13705 * src/scan-gram.l: Use more accurate diagnostics, e.g.
13706 "integer out of range" rather than "invalid value".
13707 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
13708 accordingly.
13709
13710 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
13711 Also, remove one static variable in the scanner.
13712
13713 * src/scan-gram.l (braces_level): Now auto, not static.
13714 Initialize to zero if the compiler is being picky.
13715 (INITIAL): Clear braces_level instead of incrementing it.
13716 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
13717 as POSIX 1003.1-2001 requires.
13718 * src/system.h (IF_LINT): New macro, taken from coreutils.
13719 * configure.ac: Define "lint" if --enable-gcc-warnings.
13720
13721 2002-11-05 Akim Demaille <akim@epita.fr>
13722
13723 * src/scan-gram.l: When it starts with `%', complain about the
13724 whole directive, not just that `invalid character: %'.
13725
13726 2002-11-04 Akim Demaille <akim@epita.fr>
13727
13728 * Makefile.maint: Update from Autoconf.
13729 (update, cvs-update, po-update, do-po-update): New.
13730
13731 2002-11-04 Akim Demaille <akim@epita.fr>
13732
13733 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
13734 and yyerror.
13735 Have yyerror `use' its arguments.
13736 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
13737 returns true when location & yacc & pure & parse-param.
13738 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
13739
13740 2002-11-04 Akim Demaille <akim@epita.fr>
13741
13742 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
13743 clashes.
13744 * src/scan-gram.l: Use [\'] instead of ['] to pacify
13745 font-lock-mode.
13746 Use complain_at.
13747 Use quote, not quote_n since LOCATION_PRINT no longer uses the
13748 slot 0.
13749
13750 2002-11-03 Paul Eggert <eggert@twinsun.com>
13751
13752 * src/reader.c (get_merge_function, grammar_current_rule_check):
13753 Use consistent diagnostics for reporting type name clashes.
13754 Quote the types with <>, for consistency with Yacc.
13755 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
13756
13757 2002-11-03 Akim Demaille <akim@epita.fr>
13758
13759 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
13760 New.
13761 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
13762 (b4_parse_param): Remove.
13763 Use b4_identification.
13764 Propagate b4_pure_args where needed to pass them to yyerror.
13765 * data/glr.m4 (b4_parse_param): Remove.
13766 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
13767 (b4_lpure_formals): New.
13768 Use b4_identification.
13769 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
13770 b4_user_formals and b4_user_args.
13771 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
13772 (yyreportAmbiguity): When using a pure parser, also need
13773 the location, and the parse-params.
13774 Adjust callers.
13775 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
13776 When using a pure parser, also need the parse-params.
13777 Adjust callers.
13778 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
13779 (%pure-parser + %parse-param) LALR and GLR parsers.
13780 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
13781 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
13782 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
13783 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
13784 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
13785 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
13786 * doc/bison.texinfo: Untabify the whole file.
13787 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
13788 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
13789 (Error Reporting): Adjust to these new directives.
13790 Document %error-verbose, deprecate YYERROR_VERBOSE.
13791
13792 2002-11-03 Akim Demaille <akim@epita.fr>
13793
13794 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
13795 AT_CHECK_CALC_GLR invocations to use % directives, instead of
13796 command line options.
13797 * tests/cxx-type.at: Formatting changes.
13798
13799 2002-11-03 Paul Eggert <eggert@twinsun.com>
13800
13801 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
13802 to count columns correctly, and to check for invalid inputs.
13803
13804 Use mbsnwidth to count columns correctly. Account for tabs, too.
13805 Include mbswidth.h.
13806 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
13807 (extend_location): New function.
13808 (YY_LINES): Remove.
13809
13810 Handle CRLF in C code rather than in Lex code.
13811 (YY_INPUT): New macro.
13812 (no_cr_read): New function.
13813
13814 Scan UCNs, even though we don't fully handle them yet.
13815 (convert_ucn_to_byte): New function.
13816
13817 Handle backslash-newline correctly in C code.
13818 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
13819 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
13820 all uses changed.
13821 (tag, splice): New EREs. Do not allow NUL or newline in tags.
13822 Use {splice} wherever C allows backslash-newline.
13823 YY_STEP after space, newline, vertical-tab.
13824 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
13825
13826 (letter, id): Don't assume ASCII; e.g., spell out a-z.
13827
13828 ({int}, handle_action_dollar, handle_action_at): Check for integer
13829 overflow.
13830
13831 (YY_STEP): Omit trailing semicolon, so that it's more like C.
13832
13833 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
13834 as well as \000. Check for UCHAR_MAX, not 255.
13835 Allow \x with an arbitrary positive number of digits, as in C.
13836 Check for overflow here.
13837 Allow \? and UCNs, for compatibility with C.
13838
13839 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
13840 with quote slot used by complain_at.
13841
13842 * tests/input.at: Add tests for backslash-newline, m4 quotes
13843 in symbols, long literals, and funny escapes in strings.
13844
13845 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
13846 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
13847 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
13848 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
13849 * m4/mbswidth.m4: New file, from GNU coreutils.
13850
13851 * doc/bison.texinfo (Grammar Outline): Document // comments.
13852 (Symbols): Document that trigraphs have no special meaning in Bison,
13853 nor is backslash-newline allowed.
13854 (Actions): Document that trigraphs have no special meaning.
13855
13856 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
13857 no longer used.
13858
13859 2002-11-02 Paul Eggert <eggert@twinsun.com>
13860
13861 * src/reader.c: Don't include quote.h; not needed.
13862 (get_merge_function): Reword warning to be consistent with
13863 type clash diagnostic in grammar_current_rule_check.
13864
13865 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
13866 bug in trigraph handling.
13867
13868 * src/output.c (prepare_symbols): When printing token names,
13869 escape "[" as "@<:@" and likewise for "]".
13870
13871 * src/system.h (errno): Remove declaration, as we are now
13872 assuming C89 or better, and C89 guarantees errno.
13873
13874 2002-10-30 Paul Eggert <eggert@twinsun.com>
13875
13876 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
13877 Check for close failures.
13878 * src/files.h (xfclose): Return void, not int, since it always
13879 returned zero.
13880 * src/files.c (xfclose): Likewise. Report I/O error if ferror
13881 indicates one.
13882 * src/output.c (output_skeleton): Use xfclose rather than fclose
13883 and ferror. xfclose now checks ferror.
13884
13885 * data/glr.c (YYLEFTMOST_STATE): Remove.
13886 (yyreportTree): Use a stack-based leftmost state. This avoids
13887 our continuing battles with bogus warnings about initializers.
13888
13889 2002-10-30 Akim Demaille <akim@epita.fr>
13890
13891 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
13892 #if.
13893
13894 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13895
13896 * tests/glr-regr1.at: New test for reported regressions.
13897 * tests/testsuite.at: Add glr-regr1.at test.
13898 * tests/Makefile.am: Add glr-regr1.at test.
13899
13900 2002-10-24 Paul Eggert <eggert@twinsun.com>
13901
13902 Version 1.75a.
13903
13904 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
13905 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
13906 we use malloc. Don't assume 'A' through 'Z' are contiguous.
13907 Don't assume strdup exists; POSIX says its an XSI extension.
13908 Check for buffer overflow on input.
13909
13910 2002-10-24 Akim Demaille <akim@epita.fr>
13911
13912 * src/output.c (output_skeleton): Don't disable M4sugar comments
13913 too soon: it results in comments being expanded.
13914 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
13915 first output.
13916
13917 2002-10-24 Akim Demaille <akim@epita.fr>
13918
13919 * data/yacc.c (m4_int_type): New.
13920 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
13921 char' as only yacc.c wants K&R portability.
13922 * data/glr.c (yysigned_char): Remove.
13923 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
13924 Reported by Quoc Peyrot.
13925
13926 2002-10-23 Paul Eggert <eggert@twinsun.com>
13927
13928 * src/main.c (main): With --trace=time, report times even if a
13929 non-fatal error occurs. Formerly, the times were reported in some
13930 such cases but not in others.
13931 * src/reader.c (reader): Just return if a complaint has been issued,
13932 instead of exiting, so that 'main' can report times.
13933
13934 2002-10-22 Akim Demaille <akim@epita.fr>
13935
13936 * src/system.h: Include sys/types.
13937 Reported by Bert Deknuydt.
13938
13939 2002-10-23 Paul Eggert <eggert@twinsun.com>
13940
13941 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
13942 Suggested by Art Haas.
13943
13944 2002-10-22 Paul Eggert <eggert@twinsun.com>
13945
13946 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
13947 decl; not needed any more.
13948 * src/main.c (main): Use return to exit, undoing yesterday's change.
13949 The last OS that we could find where this wouldn't work is
13950 SunOS 3.5, and that's too old to worry about now.
13951
13952 * data/glr.c (struct yyltype): Define members even when not
13953 doing locations. This is more consistent with yacc.c, and it
13954 works around the following bug reports:
13955 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
13956 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
13957
13958 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
13959 @acronym consistently. Standardize on "Yacc" instead of "YACC",
13960 "Algol" instead of "ALGOL". Give a bit more history about BNF.
13961
13962 2002-10-22 Akim Demaille <akim@epita.fr>
13963
13964 * data/README: New.
13965
13966 2002-10-21 Paul Eggert <eggert@twinsun.com>
13967
13968 Be consistent about 'bool'; the old code used an enum in one
13969 module and an int in another, and this violates the C standard.
13970 * m4/stdbool.m4: New file, from coreutils 4.5.3.
13971 * configure.ac (AC_HEADER_STDBOOL): Add.
13972 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
13973 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
13974 * src/symtab.c (hash_compare_symbol_t): Likewise.
13975 * src/system.h (bool, false, true): Use a definition consistent
13976 with ../lib/hash.c. All uses changed.
13977
13978 * src/complain.c (warning_issued): Renamed from warn_message_count,
13979 so that we needn't worry about integer overflow (!).
13980 Now of type bool. All uses changed.
13981 (complaint_issued): Renamed from complain_message_count; likewise.
13982
13983 * src/main.c (main): Use exit to exit with failure.
13984
13985 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
13986 rather than 1 and 0.
13987 * src/main.c (main): Likewise.
13988 * src/getargs.c (getargs): Likewise.
13989 * src/reader.c (reader): Likewise.
13990
13991 * src/getarg.c (getargs): Remove duplicate code for
13992 "Try `bison --help'".
13993
13994 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
13995 What was that "2" for?
13996
13997 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
13998 * src/getargs.c (usage): Likewise.
13999
14000 * src/getargs.c (getargs): When there are too few operands, report
14001 the last one. When there are too many, report the first extra
14002 one. This is how diffutils does it.
14003
14004 2002-10-20 Paul Eggert <eggert@twinsun.com>
14005
14006 Remove K&R vestiges.
14007 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
14008 * src/complain.c (VA_START): Remove. Assume prototypes.
14009 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
14010 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
14011 fatal): Assume prototypes.
14012 * src/complain.h: Assume prototypes.
14013 * src/system.h (PARAMS): Remove.
14014 Include <limits.h> unconditionally, since it's guaranteeed even
14015 for a freestanding C89 compiler.
14016 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
14017 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
14018
14019 2002-10-20 Akim Demaille <akim@epita.fr>
14020
14021 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
14022 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
14023 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
14024 (yyresolveStates, yyresolveAction, yyresolveStack)
14025 (yyprocessOneStack): Use them.
14026 (yy_reduce_print): New.
14027 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
14028
14029 2002-10-20 Akim Demaille <akim@epita.fr>
14030
14031 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
14032 arguments and output `void'.
14033 (b4_c_function): Rename as...
14034 (b4_c_function_def): this.
14035 (b4_c_function_decl, b4_c_ansi_function_def)
14036 (b4_c_ansi_function_decl): New.
14037 Change the interpretation of the arguments: before `int, foo', now
14038 `int foo, foo'.
14039 * data/yacc.c (yyparse): Prototype and define thanks to these.
14040 Adjust b4_c_function_def uses.
14041 * data/glr.c (yyparse): Likewise, but ANSI only.
14042
14043 2002-10-20 Akim Demaille <akim@epita.fr>
14044
14045 * src/output.c (prepare): Move the definition of `tokens_number',
14046 `nterms_number', `undef_token_number', `user_token_number_max'
14047 to...
14048 (prepare_tokens): Here.
14049 (prepare_tokens): Rename as...
14050 (prepare_symbols): this.
14051 (prepare): Move the definition of `rules_number' to...
14052 (prepare_rules): here.
14053 (prepare): Move the definition of `last', `final_state_number',
14054 `states_number' to...
14055 (prepare_states): here.
14056 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
14057
14058 2002-10-20 Akim Demaille <akim@epita.fr>
14059
14060 * src/tables.h, src/tables.c, src/output.c: Comment changes.
14061
14062 2002-10-20 Akim Demaille <akim@epita.fr>
14063
14064 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
14065 * data/c.m4: here.
14066
14067 2002-10-20 Akim Demaille <akim@epita.fr>
14068
14069 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
14070 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
14071 `pair'.
14072 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
14073 `name' to...
14074 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
14075 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
14076 These.
14077
14078 2002-10-19 Paul Eggert <eggert@twinsun.com>
14079
14080 Do not create a temporary file, as that involves security and
14081 cleanup headaches. Instead, use a pair of pipes.
14082 Derived from a suggestion by Florian Krohm.
14083 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
14084 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
14085 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
14086 (BISON_PREREQ_SUBPIPE): Add.
14087 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
14088 Add subpipe.h, subpipe.c.
14089 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
14090 * po/POTFILES.in: Add lib/subpipe.c.
14091 * src/output.c: Include "subpipe.h".
14092 (m4_invoke): Remove decl.
14093 (scan_skel): New decl.
14094 (output_skeleton): Use pipe rather than temporary file for m4 input.
14095 Check that m4sugar.m4 is readable, to avoid deadlock.
14096 Check for pipe I/O error.
14097 * src/scan-skel.l (readpipe): Remove decl.
14098 (scan_skel): New function, to be used in place of m4_invoke.
14099 Read from stream rather than file.
14100
14101 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
14102 float, as this generates a warning on Solaris 8 + GCC 3.2 with
14103 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
14104 this generates a more-accurate value anyway.
14105
14106 * lib/timevar.c (timervar_accumulate): Rename locals to
14107 avoid confusion with similarly-named more-global.
14108 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
14109
14110 * src/output.c (prepare): Use xstrdup to convert char const *
14111 to char *, to avoid GCC warning.
14112
14113 2002-10-19 Akim Demaille <akim@epita.fr>
14114
14115 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
14116 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
14117 Use them to have `calc.y' ready for %pure-parser.
14118 * data/yacc.c (YYLEX): Pass a yylex return type to
14119 b4_c_function_call.
14120
14121 2002-10-19 Akim Demaille <akim@epita.fr>
14122
14123 Prototype support of %lex-param and %parse-param.
14124
14125 * src/parse-gram.y: Add the definition of the %lex-param and
14126 %parse-param tokens, plus their rules.
14127 Drop the `_' version of %glr-parser.
14128 Add the "," token.
14129 * src/scan-gram.l (INITIAL): Scan them.
14130 * src/muscle_tab.c: Comment changes.
14131 (muscle_insert, muscle_find): Rename `pair' as `probe'.
14132 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
14133 (muscle_entry_s): The `value' member is no longer const.
14134 Adjust all dependencies.
14135 * src/muscle_tab.c (muscle_init): Adjust: use
14136 MUSCLE_INSERT_STRING.
14137 Initialize the obstack earlier.
14138 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
14139 (muscle_pair_list_grow): New.
14140 * data/c.m4 (b4_c_function_call, b4_c_args): New.
14141 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
14142 * tests/calc.at: Use %locations, not --locations.
14143 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
14144
14145 2002-10-19 Akim Demaille <akim@epita.fr>
14146
14147 * src/getargs.c (usage): Take status as argument and exit
14148 accordingly.
14149 Report the traditional `Try ... --help' message when status != 0.
14150 (usage, version): Don't take a FILE * as arg, it is pointless.
14151 (getargs): When there is an incorrect number of arguments, make it
14152 an error, and report it GNUlically thanks to `usage ()'.
14153
14154 2002-10-18 Paul Eggert <eggert@twinsun.com>
14155
14156 * data/glr.c (yyreportParseError): Don't assume that sprintf
14157 yields the length of the printed string, as this is not true
14158 on SunOS 4.1.4. Reported by Peter Klein.
14159
14160 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
14161 * tests/conflicts.at (%nonassoc and eof): Likewise.
14162 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
14163
14164 2002-10-17 Akim Demaille <akim@epita.fr>
14165
14166 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
14167 * src/getargs.c (trace_types, trace_args): Adjust.
14168 * src/reader.c (grammar_current_rule_prec_set)
14169 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
14170 Standardize error messages.
14171 And s/@prec/%prec/!
14172 (reader): Use trace_flag to enable scanner/parser debugging,
14173 instead of an adhoc scheme.
14174 * src/scan-gram.l: Remove trailing debugging code.
14175
14176 2002-10-16 Paul Eggert <eggert@twinsun.com>
14177
14178 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
14179 MUSCLE_TAB_H.
14180
14181 * NEWS: Officially drop support for building Bison with K&R C,
14182 since it didn't work anyway and it's not worth worrying about.
14183 * Makefile.maint (wget_files): Remove ansi2knr.c.
14184 (ansi2knr.c-url_prefix): Remove.
14185 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
14186 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14187 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14188
14189 2002-10-15 Paul Eggert <eggert@twinsun.com>
14190
14191 Stop using the "enum_" trick for K&R-style function definitions;
14192 it confused me, and I was the author! Instead, assume that people
14193 who want to use K&R C compilers (when using these modules in GCC,
14194 perhaps?) will run ansi2knr.
14195
14196 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
14197 All uses of "enum_" changed to "enum ".
14198 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
14199 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
14200
14201 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
14202 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
14203 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
14204 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
14205 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
14206 abitset_not, abitset_ones, abitset_or, abitset_or_and,
14207 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
14208 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
14209 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
14210 Use function prototypes; this removes the need for declaring
14211 static functions simply to provide their prototypes.
14212 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
14213 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
14214 bitset_count_, bitset_create, bitset_dump, bitset_first,
14215 bitset_free, bitset_init, bitset_last, bitset_next,
14216 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
14217 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
14218 bitset_print, bitset_release_memory, bitset_toggle_,
14219 bitset_type_choose, bitset_type_get, bitset_type_name_get,
14220 debug_bitset): Likewise.
14221 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
14222 * lib/bitset_stats.c (bitset_log_histogram_print,
14223 bitset_percent_histogram_print, bitset_stats_and,
14224 bitset_stats_and_cmp, bitset_stats_and_or,
14225 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
14226 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
14227 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
14228 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
14229 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
14230 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
14231 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
14232 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
14233 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
14234 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
14235 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
14236 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
14237 bitset_stats_zero): Likewise.
14238 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
14239 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
14240 bitsetv_dump, debug_bitsetv): Likewise.
14241 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
14242 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
14243 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
14244 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
14245 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
14246 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
14247 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
14248 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
14249 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
14250 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
14251 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
14252 Likewise.
14253 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
14254 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
14255 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
14256 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
14257 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
14258 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
14259 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
14260 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
14261 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
14262 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
14263 lbitset_xor_cmp, lbitset_zero): Likewise.
14264
14265 2002-10-14 Akim Demaille <akim@epita.fr>
14266
14267 Version 1.75.
14268
14269 2002-10-14 Akim Demaille <akim@epita.fr>
14270
14271 * tests/Makefile.am (maintainer-check-posix): New.
14272
14273 2002-10-14 Akim Demaille <akim@epita.fr>
14274
14275 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
14276 member.
14277
14278 2002-10-14 Akim Demaille <akim@epita.fr>
14279
14280 * src/tables.c (table_ninf_remap): base -> tab.
14281 Reported by Matt Rosing.
14282
14283 2002-10-14 Paul Eggert <eggert@twinsun.com>
14284
14285 * tests/action.at, tests/calc.at, tests/conflicts.at,
14286 tests/cxx-type.at, tests/headers.at, tests/input.at,
14287 tests/regression.at, tests/synclines.at, tests/torture.at:
14288 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
14289 so that the tests still work even if POSIXLY_CORRECT is set.
14290 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
14291
14292 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
14293 for portability to K&R hosts. Fix typo: signed char is guaranteed
14294 only to 127, not to 128.
14295 * data/glr.c (yysigned_char): New type.
14296 * data/yacc.c (yysigned_char): Likewise.
14297 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
14298
14299 2002-10-13 Paul Eggert <eggert@twinsun.com>
14300
14301 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
14302 true due to limited range of data type" warning from GCC.
14303
14304 * data/c.m4 (b4_token_defines): Protect against double-inclusion
14305 by wrapping enum yytokentype's definition inside #ifndef
14306 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
14307
14308 2002-10-13 Akim Demaille <akim@epita.fr>
14309
14310 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
14311 Un yy- yyrhs to avoid the name clash with the global YYRHS.
14312
14313 2002-10-13 Akim Demaille <akim@epita.fr>
14314
14315 * Makefile.maint: Update from Autoconf 2.54.
14316 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
14317
14318 2002-10-13 Akim Demaille <akim@epita.fr>
14319
14320 * src/print.c (print_state): Separate the list of solved conflicts
14321 from the other items.
14322 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
14323
14324 2002-10-13 Akim Demaille <akim@epita.fr>
14325
14326 Let nondeterministic skeletons be usable with deterministic
14327 tables.
14328
14329 With the patch, GAWK compiled by GCC without -O2 passes its test
14330 suite using a GLR parser driven by LALR tables. It fails with -O2
14331 because `struct stat' gives two different answers on my machine:
14332 88 (definition of an auto var) and later 96 (memset on this var).
14333 Hence the stack is badly corrumpted. The headers inclusion is to
14334 blame: if I move the awk.h inclusion before GLR's system header
14335 inclusion, the two struct stat have the same size.
14336
14337 * src/tables.c (pack_table): Always create conflict_table.
14338 (token_actions): Always create conflict_list.
14339 * data/glr.c (YYFLAG): Remove, unused.
14340
14341 2002-10-13 Akim Demaille <akim@epita.fr>
14342
14343 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
14344 (O0FLAGS): New.
14345 (VALGRIND, GXX): New.
14346 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
14347 * tests/bison.in: Run $PREBISON a pre-command.
14348 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
14349 (maintainer-check-g++): New.
14350 * Makefile.am (maintainer-check): New.
14351
14352 2002-10-13 Akim Demaille <akim@epita.fr>
14353
14354 * data/glr.c: Formatting changes.
14355 Tweak some trace messages to match yacc.c's.
14356
14357 2002-10-13 Akim Demaille <akim@epita.fr>
14358
14359 GLR parsers sometimes raise parse errors instead of performing the
14360 default reduction.
14361 Reported by Charles-Henry de Boysson.
14362
14363 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
14364 check the length of the traces when %glr.
14365 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
14366 GLR's traces.
14367 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
14368 Test GLR parsers.
14369 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
14370 (yyltype): Remove the yy prefix from the member names.
14371 (yytable): Complete its comment.
14372 (yygetLRActions): Map error action number from YYTABLE from
14373 YYTABLE_NINF to 0.
14374 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
14375 (which was a bug: it should have been YYTABEL_NINF, and yet it was
14376 not satisfying as we could compare an YYACTION computed from
14377 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
14378 only value for error actions.
14379 (yyreportParseError): In verbose parse error messages, don't issue
14380 `error' in the list of expected tokens.
14381 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
14382 next action to perform to match glr.c's decoding.
14383 (yytable): Complete its comment.
14384
14385 2002-10-13 Paul Eggert <eggert@twinsun.com>
14386
14387 Fix problem reported by Henrik Grubbstroem in
14388 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
14389 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
14390 because the Bison parser reads the second action before reducing
14391 the first one.
14392 * src/scan-gram.l (rule_length): New static var.
14393 Use it to keep track of the rule length in the scanner, since
14394 we can't expect the parser to be in lock-step sync with the scanner.
14395 (handle_action_dollar, handle_action_at): Use this var.
14396 * tests/actions.at (Exotic Dollars): Test for the problem.
14397
14398 2002-10-12 Paul Eggert <eggert@twinsun.com>
14399
14400 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
14401 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
14402 Include <sys/time.h> when checking for clock_t and struct tms.
14403 Use same include order as source.
14404 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
14405 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
14406
14407 * lib/timevar.c: Update copyright date and clarify comments.
14408 (get_time) [IN_GCC]: Keep the GCC version for reference.
14409
14410 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
14411 GCC version as of today, then merge Bison's changes.
14412 Change "GCC" to "Bison" in copyright notice. timevar.def's
14413 author is Akim, so change that too.
14414
14415 * src/reader.c (grammar_current_rule_check):
14416 Don't worry about the default action if $$ is untyped.
14417 Prevents bogus warnings reported by Jim Gifford in
14418 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
14419
14420 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
14421 * data/glr.c, data/lalr1.cc, data/yacc.c:
14422 Output token definitions before the first part of user declarations.
14423 Fixes compatibility problem reported by Jim Gifford for kbd in
14424 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
14425
14426 2002-10-11 Paul Eggert <eggert@twinsun.com>
14427
14428 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
14429 (yyparse): here. This undoes some of the 2002-07-25 change.
14430 Compatibility problem reported by Ralf S. Engelschall with
14431 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
14432
14433 2002-10-11 Akim Demaille <akim@epita.fr>
14434
14435 * tests/regression.at Characters Escapes): New.
14436 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
14437 characters.
14438 Reported by Jan Nieuwenhuizen.
14439
14440 2002-10-11 Akim Demaille <akim@epita.fr>
14441
14442 * po/id.po: New.
14443
14444 2002-10-10 Paul Eggert <eggert@twinsun.com>
14445
14446 Portability fixes for bitsets; this also avoids several GCC
14447 warnings.
14448
14449 * lib/abitset.c: Include <stddef.h>, for offsetof.
14450 * lib/lbitset.c: Likewise.
14451
14452 * lib/abitset.c (abitset_bytes): Return a size that is aligned
14453 properly for vectors of objects. Do not assume that adding a
14454 header size to a multiple of a word size yields a value that is
14455 properly aligned for the whole union.
14456 * lib/bitsetv.c (bitsetv_alloc): Likewise.
14457
14458 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
14459 unique names for structures.
14460 * lib/ebitset.c (ebitset_bytes): Likewise.
14461 * lib/lbitset.c (lbitset_bytes): Likewise.
14462
14463 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
14464 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
14465 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
14466 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
14467 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
14468 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
14469 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
14470 to improve the type-checking that GCC can do.
14471 * lib/bitset.c (bitset_op4_cmp): Likewise.
14472 * lib/bitset_stats.c (bitset_stats_count,
14473 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
14474 bitset_stats_copy, bitset_stats_disjoint_p,
14475 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
14476 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
14477 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
14478 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
14479 bitset_stats_and_or_cmp, bitset_stats_andn_or,
14480 bitset_stats_andn_or_cmp, bitset_stats_or_and,
14481 bitset_stats_or_and_cmp): Likewise.
14482 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
14483 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
14484 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
14485 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
14486
14487 * lib/abitset.h: Include bitset.h, not bbitset.h.
14488 * lib/ebitset.h: Likewise.
14489 * lib/lbitset.h: Likewise.
14490
14491 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
14492 All instances of parameters of type enum bitset_opts are now of
14493 type enum_bitset_opts, to conform to the C Standard, and similarly
14494 for enum_bitset_type.
14495 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
14496 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
14497
14498 Do not use "struct bitset_struct" to mean different things in
14499 different modules. Not only is this confusing, it violates
14500 the C Standard, which requires that structure types in different
14501 modules must be compatible if one is to be passed to the other.
14502 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
14503 All instances of "struct bitset_struct *" replaced with "bitset".
14504 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
14505 (union bitset_union, struct abitset_struct, struct ebitset_struct,
14506 struct lbitset_struct, struct bitset_stats_struct): New types.
14507 All uses of struct bitset_struct changed to union bitset_union,
14508 etc.
14509 * lib/abitset.c (struct abitset_struct, abitset,
14510 struct bitset_struct): Remove.
14511 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
14512 struct bitset_struct): Remove.
14513 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
14514 bitset_struct): Remove.
14515 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
14516 Likewise.
14517
14518 Do not call a function of type T using a call that assumes the
14519 function is of a different type U. Standard C requires that a
14520 function must be called with a type that is compatible with its
14521 definition.
14522 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
14523 New decls.
14524 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
14525 New functions.
14526 * lib/ebitset.c (PFV): Remove.
14527 * lib/lbitset.c (PFV): Likewise.
14528 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
14529 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
14530 decls.
14531 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
14532 (ebitset_vtable): Use them.
14533 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
14534 lbitset_xor): New functions.
14535 (lbitset_vtable): Use them.
14536
14537 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
14538 Declare.
14539
14540 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
14541 GCC warning.
14542 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
14543 Use offsetof, for simplicity.
14544
14545 2002-10-06 Paul Eggert <eggert@twinsun.com>
14546
14547 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
14548 the same width as int. This reapplies a hunk of the 2002-08-12 patch
14549 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
14550 which was inadvertently undone by the 2002-09-30 patch.
14551 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
14552 the same width as int.
14553
14554 2002-10-04 Paul Eggert <eggert@twinsun.com>
14555
14556 Version 1.50.
14557
14558 * configure.ac (AC_INIT), NEWS: Increment version number.
14559
14560 * doc/bison.texinfo: Minor spelling, grammar, and white space
14561 fixes.
14562 (Symbols): Mention that any negative value returned from yylex
14563 signifies end-of-input. Warn about negative chars. Mention
14564 the portable Standard C character set.
14565
14566 The GNU coding standard says CFLAGS and YFLAGS are reserved
14567 for the installer to set.
14568 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
14569 * src/Makefile.am (AM_CFLAGS): Likewise.
14570 (AM_YFLAGS): Renamed from YFLAGS.
14571
14572 Fix some MAX and MIN problems.
14573 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
14574 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
14575 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
14576 * src/reader.c (reader): Use it.
14577
14578 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
14579 POSIX 1003.1-2001 has removed fgrep.
14580
14581 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
14582
14583 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
14584 interpreted as signed.
14585 * lib/ebitset.c (ebitset_list): Fix bug.
14586
14587 2002-10-01 Paul Eggert <eggert@twinsun.com>
14588
14589 More fixes for 64-bit hosts and large bitsets.
14590
14591 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
14592 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
14593 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
14594 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
14595 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
14596 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
14597 bitset_count_): Likewise.
14598 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
14599 bitset_first, bitset_last): Likewise.
14600 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
14601 bitset_stats_list_reverse, bitset_stats_size,
14602 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
14603 Likewise.
14604 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14605 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
14606 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
14607 bitsetv_reflexive_transitive_closure): Likewise.
14608 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
14609 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
14610 Likewise.
14611 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
14612 Likewise.
14613
14614 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
14615 Use size_t, not unsigned int, to count bytes.
14616 * lib/abitset.h (abitset_bytes): Likewise.
14617 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
14618 Likewise.
14619 * lib/bitset.h (bitset_bytes): Likewise.
14620 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
14621 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
14622 * lib/bitsetv.c (bitsetv_alloc): Likewise.
14623 * lib/ebitset.c (ebitset_bytes): Likewise.
14624 * lib/ebitset.h (ebitset_bytes): Likewise.
14625 * lib/lbitset.c (lbitset_bytes): Likewise.
14626 * lib/lbitset.h (lbitset_bytes): Likewise.
14627
14628 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
14629 abitset_subset_p, abitset_disjoint_p, abitset_and,
14630 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
14631 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
14632 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
14633 abitset_or_and, abitset_or_and_cmp):
14634 Use bitset_windex instead of unsigned int.
14635 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
14636 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
14637 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
14638 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
14639 Likewise.
14640 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
14641
14642 * lib/bitset.c (bitset_print):
14643 Use proper printf formats for widths of integer types.
14644 * lib/bitset_stats.c (bitset_percent_histogram_print,
14645 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
14646 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14647 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
14648 * lib/lbitset.c (lbitset_bytes): Likewise.
14649
14650 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
14651 BITSET_SIZE_MAX): New macros.
14652 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
14653 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
14654 to BITSET_WINDEX_MAX.
14655
14656 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
14657 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
14658 since we now return the bitset_bindex type (not int).
14659
14660 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
14661 when computing sizes.
14662 * lib/ebitset.c (ebitset_elts_grow): Likewise.
14663
14664 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
14665 and avoid cast to unsigned.
14666
14667 2002-09-30 Akim Demaille <akim@epita.fr>
14668
14669 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
14670 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
14671 Updates from Michael Hayes.
14672
14673 2002-09-30 Art Haas <ahaas@neosoft.com>
14674
14675 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
14676 invocations.
14677 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
14678 defined.
14679
14680 2002-09-27 Akim Demaille <akim@epita.fr>
14681
14682 Version 1.49c.
14683
14684 2002-09-27 Akim Demaille <akim@epita.fr>
14685
14686 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
14687 (Because of AC_LIBSOURCE).
14688
14689 2002-09-27 Akim Demaille <akim@epita.fr>
14690
14691 Playing with Autoscan.
14692
14693 * configure.ac: Remove the old LIBOBJ tweaks.
14694 (AC_REPLACE_FUNCS): Add strrchr and strtol.
14695 * lib/strrchr.c: New.
14696 * lib/strtol.c: New, from the Coreutils 4.5.1.
14697
14698 2002-09-27 Akim Demaille <akim@epita.fr>
14699
14700 Playing with Autoscan.
14701
14702 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
14703 * lib/Makefile.am (libbison_a_SOURCES): No longer include
14704 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
14705 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
14706 Coreutils 4.5.1.
14707
14708 2002-09-24 Akim Demaille <akim@epita.fr>
14709
14710 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
14711 (Frequently Asked Questions, Parser Stack Overflow): New.
14712
14713 2002-09-13 Akim Demaille <akim@epita.fr>
14714
14715 Playing with autoscan.
14716
14717 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
14718 * src/files.c (skeleton_find): Remove, unused.
14719 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
14720 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
14721
14722 2002-09-13 Akim Demaille <akim@epita.fr>
14723
14724 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
14725 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
14726
14727 2002-09-13 Akim Demaille <akim@epita.fr>
14728
14729 * configure.ac: Require 2.54.
14730 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
14731 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
14732 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
14733 Remove, provided by Autoconf macros.
14734
14735 2002-09-12 Akim Demaille <akim@epita.fr>
14736
14737 * m4/prereq.m4: Update, from Coreutils 4.5.1.
14738
14739 2002-09-12 Akim Demaille <akim@epita.fr>
14740
14741 * m4/prereq.m4: Update, from Fileutils 4.1.5.
14742 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
14743 Reported by Martin Mokrejs.
14744
14745 2002-09-10 Akim Demaille <akim@epita.fr>
14746
14747 * src/parse-gram.y: Associate a human readable string to each
14748 token type.
14749 * tests/regression.at (Invalid inputs): Adjust.
14750
14751 2002-09-10 Gary V. Vaughan <gary@gnu.org>
14752
14753 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
14754 with an Autoconf-2.5x style configure.ac.
14755
14756 2002-09-06 Paul Eggert <eggert@twinsun.com>
14757
14758 * doc/bison.texinfo (Conditions): Make explicit that the GPL
14759 exception applies only to yacc.c. This is a modification of a
14760 patch originally suggested by Akim Demaille.
14761
14762 2002-09-06 Akim Demaille <akim@epita.fr>
14763
14764 * data/c.m4 (b4_copyright): Move the GPL exception comment from
14765 here to...
14766 * data/yacc.c: here.
14767
14768 * data/lalr1.cc (struct yyltype): Don't define it, since we use
14769 LocationType.
14770 (b4_ltype): Default to yy::Location from location.hh.
14771
14772 2002-09-04 Jim Meyering <jim@meyering.net>
14773
14774 * data/yacc.c: Guard the declaration of yytoknum also with
14775 `#ifdef YYPRINT', so it is declared only when used.
14776
14777 2002-09-04 Akim Demaille <akim@epita.fr>
14778
14779 * configure.in: Rename as...
14780 * configure.ac: this.
14781 Bump to 1.49c.
14782
14783 2002-09-04 Akim Demaille <akim@epita.fr>
14784
14785 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
14786 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
14787 translate maintainer only messages.
14788
14789 2002-08-12 Paul Eggert <eggert@twinsun.com>
14790
14791 Version 1.49b.
14792
14793 * Makefile.am (SUBDIRS): Remove intl.
14794 (DISTCLEANFILES): Remove.
14795 * NEWS: Mention that GNU M4 is now required. Clarify what is
14796 meant by "larger grammars". Mention the pt_BR translation.
14797 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
14798 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
14799 Bump version from 0.11.2 to 0.11.5.
14800 (BISON_PREREQ_STAGE): Remove.
14801 (AM_GNU_GETTEXT): Use external gettext.
14802 (AC_OUTPUT): Remove intl/Makefile.
14803
14804 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
14805
14806 * data/glr.c: Include string.h, for strlen.
14807 (yyreportParseError): Use size_t for yysize.
14808 (yy_yypstack): No longer nested inside yypstates, as nested
14809 functions are not portable. Do not assume size_t is the
14810 same width as int.
14811 (yypstates): Do not assume that ptrdiff_t is the same width
14812 as int, and similarly for yyposn and YYINDEX.
14813
14814 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
14815
14816 * lib/Makefile.am (INCLUDES): Do not include from the intl
14817 directory, which has been removed.
14818 * src/Makefile.am (INCLUDES): Likewise.
14819
14820 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
14821 (bitsets_sources, additional_bitsets_sources, timevars_sources):
14822 New vars.
14823
14824 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
14825 * tests/Makefile.am (EXTRA_DIST): Likewise.
14826
14827 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
14828 Do not assume that bitset_windex is the same width as unsigned.
14829
14830 * lib/abitset.c (abitset_unused_clear): Do not assume that
14831 bitset_word is the same width as int.
14832 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
14833 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
14834 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
14835 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
14836 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
14837
14838 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
14839 portability to one's complement hosts!).
14840 * lib/ebitset.c (ebitset_op1): Likewise.
14841 * lib/lbitset.c (lbitset_op1): Likewise.
14842
14843 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
14844 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14845 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
14846 Sync with fileutils.
14847 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
14848 lib/gettext.h: Sync with diffutils.
14849
14850 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
14851 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
14852
14853 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
14854 PROTOTYPES to check for prototypes, and "defined __STDC__" to
14855 check for void *.
14856
14857 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
14858 size_t; the old version tried to do this but casted improperly.
14859 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
14860 (bitset_test): Now returns int, not unsigned long.
14861
14862 * lib/bitset_stats.c: Include "gettext.h".
14863 (_): New macro.
14864 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
14865 name locals "index", as it generates unnecessary warnings on some
14866 hosts that have an "index" function.
14867
14868 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
14869 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
14870 they need translation.
14871 * src/LR0.c (state_list_append, new_itemsets, get_state,
14872 append_states, generate_states): Likewise.
14873 * src/assoc.c (assoc_to_string): Likewise.
14874 * src/closure.c (print_closure, set_firsts, closure): Likewise.
14875 * src/gram.c (grammar_dump): Likewise.
14876 * src/injections.c (injections_compute): Likewise.
14877 * src/lalr.c (lookaheads_print): Likewise.
14878 * src/relation.c (relation_transpose): Likewise.
14879 * src/scan-gram.l: Likewise.
14880 * src/tables.c (table_grow, pack_vector): Likewise.
14881
14882 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
14883 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
14884 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
14885 * m4/mbstate_t.m4: Sync with fileutils.
14886 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
14887
14888 * po/LINGUAS: Add pt_BR.
14889 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
14890 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
14891 lib/timevar.c.
14892 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
14893 manual recommends.
14894 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
14895
14896 * src/complain.c (strerror_r): Remove decl; not needed.
14897 (strerror): Use same pattern as ../lib/error.c.
14898
14899 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
14900
14901 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
14902
14903 * src/main.c (main): Cast result of bindtextdomain and textdomain
14904 to void, to avoid a GCC warning when --disable-nls is in effect.
14905
14906 * src/scan-gram.l: Use strings rather than escapes when possible,
14907 to minimize the number of warnings from xgettext.
14908 (handle_action_dollar, handle_action_at): Don't use isdigit,
14909 as it mishandles negative chars and it may not work as expected
14910 outside the C locale.
14911
14912 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
14913 this is a GCC extension and is not portable to other compilers.
14914
14915 * src/system.h (alloca): Use same pattern as ../lib/error.c.
14916 Do not include <ctype.h>; no longer needed.
14917 Do not include <malloc.h>; no longer needed (and generates
14918 warnings on OpenBSD 3.0).
14919
14920 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
14921 it's not portable.
14922
14923 * tests/regression.at: Do not use 'cc -c input.c -o input';
14924 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
14925
14926 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
14927 exit status as failure, not just exit status 1. Sun C exits
14928 with status 2 sometimes.
14929
14930 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
14931 Use it for the two large tests.
14932
14933 2002-08-02 Akim Demaille <akim@epita.fr>
14934
14935 * src/conflicts.c (conflicts_output): Don't output rules never
14936 reduced here, since anyway that computation doesn't work.
14937 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
14938 (rule_useless_p, rule_never_reduced_p): New.
14939 (grammar_rules_partial_print): Use a filter instead of a range.
14940 Display the title only if needed.
14941 (grammar_rules_print): Adjust.
14942 (grammar_rules_never_reduced_report): New.
14943 * src/tables.c (action_row): Move the computation of rules never
14944 reduced to...
14945 (token_actions): here.
14946 * src/main.c (main): Make the parser before making the report, so
14947 that rules never reduced are computed.
14948 Call grammar_rules_never_reduced_report.
14949 * src/print.c (print_results): Report rules never reduced.
14950 * tests/conflicts.at, tests/reduce.at: Adjust.
14951
14952 2002-08-01 Akim Demaille <akim@epita.fr>
14953
14954 Instead of attaching lookaheads and duplicating the rules being
14955 reduced by a state, attach the lookaheads to the reductions.
14956
14957 * src/state.h (state_t): Remove the `lookaheads',
14958 `lookaheads_rule' member.
14959 (reductions_t): Add a `lookaheads' member.
14960 Use a regular array for the `rules'.
14961 * src/state.c (reductions_new): Initialize the lookaheads member
14962 to 0.
14963 (state_rule_lookaheads_print): Adjust.
14964 * src/state.h, src/state.c (state_reductions_find): New.
14965 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
14966 (count_rr_conflicts): Adjust.
14967 * src/lalr.c (LArule): Remove.
14968 (add_lookback_edge): Adjust.
14969 (state_lookaheads_count): New.
14970 (states_lookaheads_initialize): Merge into...
14971 (initialize_LA): this.
14972 (lalr_free): Adjust.
14973 * src/main.c (main): Don't free nullable and derives too early: it
14974 is used by --verbose.
14975 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
14976
14977 2002-08-01 Akim Demaille <akim@epita.fr>
14978
14979 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
14980 `rule_number_t**'.
14981 (set_derives, free_derives): Rename as...
14982 (derives_compute, derives_free): this.
14983 Adjust all dependencies.
14984 * src/nullable.c (set_nullable, free_nullable): Rename as...
14985 (nullable_compute, nullable_free): these.
14986 (rule_list_t): Store rule_t *, not rule_number_t.
14987 * src/state.c (state_rule_lookaheads_print): Directly compare rule
14988 pointers, instead of their numbers.
14989 * src/main.c (main): Call nullable_free, and derives_free earlier,
14990 as they were lo longer used.
14991
14992 2002-08-01 Akim Demaille <akim@epita.fr>
14993
14994 * lib/timevar.c (get_time): Include children time.
14995 * src/lalr.h (LA, LArule): Don't export them: used with the
14996 state_t.
14997 * src/lalr.c (LA, LArule): Static.
14998 * src/lalr.h, src/lalr.c (lalr_free): New.
14999 * src/main.c (main): Call it.
15000 * src/tables.c (pack_vector): Check whether loc is >= to the
15001 table_size, not >.
15002 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
15003 (tables_generate): do it, since that's also it which allocates
15004 them.
15005 Don't free LA and LArule, main does.
15006
15007 2002-07-31 Akim Demaille <akim@epita.fr>
15008
15009 Separate parser tables computation and output.
15010
15011 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
15012 (conflict_list, conflict_list_cnt, table, check, table_ninf)
15013 (yydefgoto, yydefact, high): Move to...
15014 * src/tables.h, src/tables.c: here.
15015 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15016 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15017 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
15018 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
15019 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
15020 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
15021 (action_row, save_row, token_actions, save_column, default_goto)
15022 (goto_actions, sort_actions, matching_state, pack_vector)
15023 (table_ninf_remap, pack_table, prepare_actions): Move to...
15024 * src/tables.c: here.
15025 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
15026 * src/output.c (token_actions, output_base, output_conflicts)
15027 (output_check): Merge into...
15028 (prepare_actions): this.
15029 (actions_output): Rename as...
15030 (user_actions_output): this.
15031 * src/main.c (main): Call tables_generate and tables_free.
15032
15033 2002-07-31 Akim Demaille <akim@epita.fr>
15034
15035 Steal GCC's --time-report support.
15036
15037 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
15038 stolen/adjusted from GCC.
15039 * m4/stage.m4: Remove time related checks.
15040 * m4/timevar.m4: New.
15041 * configure.in: Adjust.
15042 * src/system.h: Adjust to using timevar.h.
15043 * src/getargs.h, src/getargs.c: Support trace_time for
15044 --trace=time.
15045 * src/main.c (stage): Remove.
15046 (main): Replace `stage' invocations with timevar calls.
15047 * src/output.c: Insert pertinent timevar calls.
15048
15049 2002-07-31 Akim Demaille <akim@epita.fr>
15050
15051 Let --trace have arguments.
15052
15053 * src/getargs.h (enum trace_e): New.
15054 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
15055 (long_options, short_options): --trace/-T takes an optional
15056 argument.
15057 Change all the uses of trace_flag to reflect the new flags.
15058 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
15059
15060 Strengthen `stage' portability.
15061
15062 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
15063 * configure.in: Use it.
15064 Don't check for malloc.h and sys/times.h.
15065 * src/system.h: Include them when appropriate.
15066 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
15067 times and struct tms are available.
15068
15069 2002-07-30 Akim Demaille <akim@epita.fr>
15070
15071 In verbose parse error message, don't report `error' as an
15072 expected token.
15073 * tests/actions.at (Printers and Destructors): Adjust.
15074 * tests/calc.at (Calculator $1): Adjust.
15075 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
15076 error message, do not report the parser accepts the error token in
15077 that state.
15078
15079 2002-07-30 Akim Demaille <akim@epita.fr>
15080
15081 Normalize conflict related messages.
15082
15083 * src/complain.h, src/complain.c (warn, complain): New.
15084 * src/conflicts.c (conflicts_print): Use them.
15085 (conflict_report_yacc): New, extracted from...
15086 (conflicts_print): here.
15087 * tests/conflicts.at, tests/existing.at: Adjust.
15088
15089 2002-07-30 Akim Demaille <akim@epita.fr>
15090
15091 Report rules which are never reduced by the parser: those hidden
15092 by conflicts.
15093
15094 * src/LR0.c (save_reductions): Don't make the final state too
15095 different: save its reduction (accept) instead of having a state
15096 without any action (no shift or goto, no reduce).
15097 Note: the final state is now a ``regular'' state, i.e., the
15098 parsers now contain `reduce 0' as default reduction.
15099 Nevertheless, since they decide to `accept' when yystate =
15100 final_state, they still will not reduce rule 0.
15101 * src/print.c (print_actions, print_reduction): Adjust.
15102 * src/output.c (action_row): Track reduced rules.
15103 (token_actions): Report rules never reduced.
15104 * tests/conflicts.at, tests/regression.at: Adjust.
15105
15106 2002-07-30 Akim Demaille <akim@epita.fr>
15107
15108 `stage' was accidently included in a previous patch.
15109 Initiate its autoconfiscation.
15110
15111 * configure.in: Look for malloc.h and sys/times.h.
15112 * src/main.c (stage): Adjust.
15113 Report only when trace_flag.
15114
15115 2002-07-29 Akim Demaille <akim@epita.fr>
15116
15117 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
15118 state_number_t.
15119 (errs_t): symbol_t*, not symbol_number_t.
15120 (reductions_t): rule_t*, not rule_number_t.
15121 (FOR_EACH_SHIFT): New.
15122 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
15123 * src/print.c, src/print_graph.c: Adjust.
15124
15125 2002-07-29 Akim Demaille <akim@epita.fr>
15126
15127 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
15128
15129 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
15130 (endtoken, accept): these.
15131 * src/reader.c (reader): Set endtoken's default tag to "$end".
15132 Set undeftoken's tag to "$undefined" instead of "$undefined.".
15133 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
15134 Adjust.
15135
15136 2002-07-29 Akim Demaille <akim@epita.fr>
15137
15138 * src/reduce.c (reduce_grammar): When the language is empty,
15139 complain about the start symbol, not the axiom.
15140 Use its location.
15141 * tests/reduce.at (Empty Language): New.
15142
15143 2002-07-26 Akim Demaille <akim@epita.fr>
15144
15145 * src/reader.h, src/reader.c (gram_error): ... can't get
15146 yycontrol without making too strong assumptions on the parser
15147 itself.
15148 * src/output.c (prepare_tokens): Use the real 0th value of
15149 token_translations instead of `0'.
15150 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
15151 visible here.
15152 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
15153 for the time being: %locations ought to provide it to yyerror.
15154
15155 2002-07-25 Akim Demaille <akim@epita.fr>
15156
15157 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
15158 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
15159 * tests/regression.at (Web2c Actions): Adjust.
15160
15161 2002-07-25 Akim Demaille <akim@epita.fr>
15162
15163 Stop storing rules from 1 to nrules + 1.
15164
15165 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
15166 * src/nullable.c, src/output.c, src/print.c, src/reader.c
15167 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
15168 Iterate from 0 to nrules.
15169 Use rule_number_as_item_number and item_number_as_rule_number.
15170 Adjust to `derive' now containing possibly 0.
15171 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
15172 Handle the `- 1' part in rule numbers from/to item numbers.
15173 * src/conflicts.c (log_resolution): Fix the message which reversed
15174 shift and reduce.
15175 * src/output.c (action_row): Initialize default_rule to -1.
15176 (token_actions): Adjust.
15177 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
15178 expected output.
15179 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
15180
15181 2002-07-25 Akim Demaille <akim@epita.fr>
15182
15183 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
15184 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
15185 (b4_c_knr_arg_decl): New.
15186 * data/yacc.c: Use it to define yysymprint, yydestruct, and
15187 yyreport_parse_error.
15188
15189 2002-07-25 Akim Demaille <akim@epita.fr>
15190
15191 * data/yacc.c (yyreport_parse_error): New, extracted from...
15192 (yyparse): here.
15193 (yydestruct, yysymprint): Move above yyparse.
15194 Be K&R compliant.
15195
15196 2002-07-25 Akim Demaille <akim@epita.fr>
15197
15198 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
15199 replace...
15200 (b4_sint_type, b4_uint_type): these.
15201 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
15202 * tests/regression.at (Web2c Actions): Adjust.
15203
15204 2002-07-25 Akim Demaille <akim@epita.fr>
15205
15206 * src/gram.h (TIEM_NUMBER_MAX): New.
15207 (item_number_of_rule_number, rule_number_of_item_number): Rename
15208 as...
15209 (rule_number_as_item_number, item_number_as_rule_number): these.
15210 Adjust dependencies.
15211 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15212 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15213 (symbol_number_to_vector_number): New.
15214 (order): Of vector_number_t* type.
15215 (base_t, BASE_MAX, BASE_MIN): New.
15216 (froms, tos, width, pos, check): Of base_t type.
15217 (action_number_t, ACTION_MIN, ACTION_MAX): New.
15218 (actrow): Of action_number_t type.
15219 (conflrow): Of unsigned int type.
15220 (table_ninf, base_ninf): New.
15221 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
15222 (muscle_insert_int_table, muscle_insert_base_table)
15223 (muscle_insert_rule_number_table): New.
15224 (prepare_tokens): Output `toknum' as int_table.
15225 (action_row): Returns a rule_number_t.
15226 Use ACTION_MIN, not SHRT_MIN.
15227 (token_actions): yydefact is rule_number_t*.
15228 (table_ninf_remap): New.
15229 (pack_table): Use it for `base' and `table'.
15230 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
15231 replaced with...
15232 (YYPACT_NINF, YYTABLE_NINF): these.
15233 (yypact, yytable): Compute their types instead of hard-coded
15234 `short'.
15235 * tests/regression.at (Web2c Actions): Adjust.
15236
15237 2002-07-19 Akim Demaille <akim@epita.fr>
15238
15239 * src/scan-gram.l (id): Can start with an underscore.
15240
15241 2002-07-16 Akim Demaille <akim@epita.fr>
15242
15243 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
15244 Adjust all former `associativity' dependencies.
15245 * src/symtab.c (symbol_new): Default associativity is `undef', not
15246 `right'.
15247 (symbol_check_alias_consistence): Adjust.
15248
15249 2002-07-09 Akim Demaille <akim@epita.fr>
15250
15251 * doc/bison.texinfo: Properly set the ``header'' part.
15252 Use @dircategory ``GNU programming tools'' as per Texinfo's
15253 documentation.
15254 Use @copying.
15255
15256 2002-07-09 Akim Demaille <akim@epita.fr>
15257
15258 * lib/quotearg.h: Protect against multiple inclusions.
15259 * src/location.h (location_t): Add a `file' member.
15260 (LOCATION_RESET, LOCATION_PRINT): Adjust.
15261 * src/complain.c (warn_at, complain_at, fatal_at): Drop
15262 `error_one_per_line' support.
15263
15264 2002-07-09 Akim Demaille <akim@epita.fr>
15265
15266 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
15267 * src/reader.c (lineno): Remove.
15268 Adjust all dependencies.
15269 (get_merge_function): Take a location and use complain_at.
15270 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
15271 * tests/regression.at (Invalid inputs, Mixing %token styles):
15272 Adjust.
15273
15274 2002-07-09 Akim Demaille <akim@epita.fr>
15275
15276 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
15277 recovery rule, and forbid extensions when --yacc.
15278 (gram_error): Use complain_at.
15279 * src/reader.c (reader): Exit if there were parse errors.
15280
15281 2002-07-09 Akim Demaille <akim@epita.fr>
15282
15283 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
15284 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
15285 Reported by R Blake <blakers@mac.com>.
15286
15287 2002-07-09 Akim Demaille <akim@epita.fr>
15288
15289 * data/yacc.c: Output the copyright notive in the header.
15290
15291 2002-07-03 Akim Demaille <akim@epita.fr>
15292
15293 * src/output.c (froms, tos): Are state_number_t.
15294 (save_column): sp, sp1, and sp2 are state_number_t.
15295 (prepare): Rename `final' as `final_state_number', `nnts' as
15296 `nterms_number', `nrules' as `rules_number', `nstates' as
15297 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
15298 unused.
15299 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
15300 * data/lalr1.cc (nsym_): Remove, unused.
15301
15302 2002-07-03 Akim Demaille <akim@epita.fr>
15303
15304 * src/lalr.h, src/lalr.c (goto_number_t): New.
15305 * src/lalr.c (goto_list_t): New.
15306 Propagate them.
15307 * src/nullable.c (rule_list_t): New.
15308 Propagate.
15309 * src/types.h: Remove.
15310
15311 2002-07-03 Akim Demaille <akim@epita.fr>
15312
15313 * src/closure.c (print_fderives): Use rule_rhs_print.
15314 * src/derives.c (print_derives): Use rule_rhs_print.
15315 (rule_list_t): New, replaces `shorts'.
15316 (set_derives): Add comments.
15317 * tests/sets.at (Nullable, Firsts): Adjust.
15318
15319 2002-07-03 Akim Demaille <akim@epita.fr>
15320
15321 * src/output.c (prepare_actions): Free `tally' and `width'.
15322 (prepare_actions): Allocate and free `order'.
15323 * src/symtab.c (symbols_free): Free `symbols'.
15324 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
15325 * src/output.c (m4_invoke): Move to...
15326 * src/scan-skel.l: here.
15327 (<<EOF>>): Close yyout, and free its name.
15328
15329 2002-07-03 Akim Demaille <akim@epita.fr>
15330
15331 Fix some memory leaks, and fix a bug: state 0 was examined twice.
15332
15333 * src/LR0.c (new_state): Merge into...
15334 (state_list_append): this.
15335 (new_states): Merge into...
15336 (generate_states): here.
15337 (set_states): Don't ensure a proper `errs' state member here, do it...
15338 * src/conflicts.c (conflicts_solve): here.
15339 * src/state.h, src/state.c: Comment changes.
15340 (state_t): Rename member `shifts' as `transitions'.
15341 Adjust all dependencies.
15342 (errs_new): For consistency, also take the values as argument.
15343 (errs_dup): Remove.
15344 (state_errs_set): New.
15345 (state_reductions_set, state_transitions_set): Assert that no
15346 previous value was assigned.
15347 (state_free): New.
15348 (states_free): Use it.
15349 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
15350 temporary storage: use `errs' and `nerrs' as elsewhere.
15351 (set_conflicts): Allocate and free this `errs'.
15352
15353 2002-07-02 Akim Demaille <akim@epita.fr>
15354
15355 * lib/libiberty.h: New.
15356 * lib: Update the bitset implementation from upstream.
15357 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
15358 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
15359 * src/main.c: Adjust bitset stats calls.
15360
15361 2002-07-01 Paul Eggert <eggert@twinsun.com>
15362
15363 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
15364 char, so that negative chars don't collide with $.
15365
15366 2002-06-30 Akim Demaille <akim@epita.fr>
15367
15368 Have the GLR tests be `warning' checked, and fix the warnings.
15369
15370 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
15371 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
15372 (yyremoveDeletes): `yyi' and `yyj' are size_t.
15373 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
15374 (yyaddDeferredAction): static.
15375 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
15376 (yyreportParseError): yyprefix is const.
15377 yytokenp is used only when verbose.
15378 (yy__GNUC__): Replace with __GNUC__.
15379 (yypdumpstack): yyi is size_t.
15380 (yypreference): Un-yy local variables and arguments, to avoid
15381 clashes with `yyr1'. Anyway, we are not in the user name space.
15382 (yytname_size): be an int, as is compared with ints.
15383 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
15384 Use them.
15385 * tests/cxx-gram.at: Use quotation to protect $1.
15386 Use AT_COMPILE to enable warnings hunts.
15387 Prototype yylex and yyerror.
15388 `Use' argc.
15389 Include `string.h', not `strings.h'.
15390 Produce and prototype stmtMerge only when used.
15391 yylex takes a location.
15392
15393 2002-06-30 Akim Demaille <akim@epita.fr>
15394
15395 We spend a lot of time in quotearg, in particular when --verbose.
15396
15397 * src/symtab.c (symbol_get): Store a quoted version of the key.
15398 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
15399 Adjust all callers.
15400
15401 2002-06-30 Akim Demaille <akim@epita.fr>
15402
15403 * src/state.h (reductions_t): Rename member `nreds' as num.
15404 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
15405 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
15406
15407 2002-06-30 Akim Demaille <akim@epita.fr>
15408
15409 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
15410 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
15411 (shifts_to): Rename as...
15412 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
15413 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
15414 (TRANSITION_IS_DISABLED, transitions_to): these.
15415
15416 2002-06-30 Akim Demaille <akim@epita.fr>
15417
15418 * src/print.c (print_shifts, print_gotos): Merge into...
15419 (print_transitions): this.
15420 (print_transitions, print_errs, print_reductions): Align the
15421 lookaheads columns.
15422 (print_core, print_transitions, print_errs, print_state,
15423 print_grammar): Output empty lines separator before, not after.
15424 (state_default_rule_compute): Rename as...
15425 (state_default_rule): this.
15426 * tests/conflicts.at (Defaulted Conflicted Reduction),
15427 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
15428 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
15429
15430 2002-06-30 Akim Demaille <akim@epita.fr>
15431
15432 Display items as we display rules.
15433
15434 * src/gram.h, src/gram.c (rule_lhs_print): New.
15435 * src/gram.c (grammar_rules_partial_print): Use it.
15436 * src/print.c (print_core): Likewise.
15437 * tests/conflicts.at (Defaulted Conflicted Reduction),
15438 (Unresolved SR Conflicts): Adjust.
15439 (Unresolved SR Conflicts): Adjust and rename as...
15440 (Resolved SR Conflicts): this, as was meant.
15441 * tests/regression.at (Web2c Report): Adjust.
15442
15443 2002-06-30 Akim Demaille <akim@epita.fr>
15444
15445 * src/print.c (state_default_rule_compute): New, extracted from...
15446 (print_reductions): here.
15447 Pessimize, but clarify the code.
15448 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
15449
15450 2002-06-30 Akim Demaille <akim@epita.fr>
15451
15452 * src/output.c (action_row): Let default_rule be always a rule
15453 number.
15454
15455 2002-06-30 Akim Demaille <akim@epita.fr>
15456
15457 * src/closure.c (print_firsts, print_fderives, closure):
15458 Use BITSET_EXECUTE.
15459 * src/lalr.c (lookaheads_print): Likewise.
15460 * src/state.c (state_rule_lookaheads_print): Likewise.
15461 * src/print_graph.c (print_core): Likewise.
15462 * src/print.c (print_reductions): Likewise.
15463 * src/output.c (action_row): Likewise.
15464 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
15465
15466 2002-06-30 Akim Demaille <akim@epita.fr>
15467
15468 * src/print_graph.c: Use report_flag.
15469
15470 2002-06-30 Akim Demaille <akim@epita.fr>
15471
15472 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
15473 to...
15474 * src/relation.h, src/relation.c (traverse, relation_digraph)
15475 (relation_print, relation_transpose): New.
15476
15477 2002-06-30 Akim Demaille <akim@epita.fr>
15478
15479 * src/state.h, src/state.c (shifts_to): New.
15480 * src/lalr.c (build_relations): Use it.
15481
15482 2002-06-30 Akim Demaille <akim@epita.fr>
15483
15484 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
15485 (item_number_of_rule_number, rule_number_of_item_number): New.
15486 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
15487 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
15488 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
15489 Propagate their use.
15490 Much remains to be done, in particular wrt `shorts' from types.h.
15491
15492 2002-06-30 Akim Demaille <akim@epita.fr>
15493
15494 * src/symtab.c (symbol_new): Initialize the `printer' member.
15495
15496 2002-06-30 Akim Demaille <akim@epita.fr>
15497
15498 * src/LR0.c (save_reductions): Remove, replaced by...
15499 * src/state.h, src/state.c (state_reductions_set): New.
15500 (reductions, errs): Rename as...
15501 (reductions_t, errs_t): these.
15502 Adjust all dependencies.
15503
15504 2002-06-30 Akim Demaille <akim@epita.fr>
15505
15506 * src/LR0.c (state_list_t, state_list_append): New.
15507 (first_state, last_state): Now symbol_list_t.
15508 (this_state): Remove.
15509 (new_itemsets, append_states, save_reductions): Take a state_t as
15510 argument.
15511 (set_states, generate_states): Adjust.
15512 (save_shifts): Remove, replaced by...
15513 * src/state.h, src/state.c (state_shifts_set): New.
15514 (shifts): Rename as...
15515 (shifts_t): this.
15516 Adjust all dependencies.
15517 * src/state.h (state_t): Remove the `next' member.
15518
15519 2002-06-30 Akim Demaille <akim@epita.fr>
15520
15521 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
15522 escaped in slot 0.
15523
15524 2002-06-30 Akim Demaille <akim@epita.fr>
15525
15526 Use hash.h for the state hash table.
15527
15528 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
15529 (allocate_storage): Use state_hash_new.
15530 (free_storage): Use state_hash_free.
15531 (new_state, get_state): Adjust.
15532 * src/lalr.h, src/lalr.c (states): Move to...
15533 * src/states.h (state_t): Remove the `link' member, no longer
15534 used.
15535 * src/states.h, src/states.c: here.
15536 (state_hash_new, state_hash_free, state_hash_lookup)
15537 (state_hash_insert, states_free): New.
15538 * src/states.c (state_table, state_compare, state_hash): New.
15539 * src/output.c (output_actions): Do not free states now, since we
15540 still need to know the final_state number in `prepare', called
15541 afterwards. Do it...
15542 * src/main.c (main): here: call states_free after `output'.
15543
15544 2002-06-30 Akim Demaille <akim@epita.fr>
15545
15546 * src/state.h, src/state.c (state_new): New, extracted from...
15547 * src/LR0.c (new_state): here.
15548 * src/state.h (STATE_ALLOC): Move to...
15549 * src/state.c: here.
15550 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
15551 * src/state.h, src/state.c: here.
15552
15553 2002-06-30 Akim Demaille <akim@epita.fr>
15554
15555 * src/reader.c (gensym): Rename as...
15556 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
15557 (getsym): Rename as...
15558 (symbol_get): this.
15559
15560 2002-06-30 Akim Demaille <akim@epita.fr>
15561
15562 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
15563 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
15564 * src/output.c, src/print.c, src/print_graph.c: Propagate.
15565 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
15566
15567 2002-06-30 Akim Demaille <akim@epita.fr>
15568
15569 Make the test suite pass with warnings checked.
15570
15571 * tests/actions.at (Printers and Destructors): Improve.
15572 Avoid unsigned vs. signed issues.
15573 * tests/calc.at: Don't exercise the scanner here, do it...
15574 * tests/input.at (Torturing the Scanner): here.
15575
15576 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15577
15578 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
15579 reorganize first lines parallel to yacc.c.
15580
15581 2002-06-28 Akim Demaille <akim@epita.fr>
15582
15583 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
15584 (b4_token_enum, b4_token_defines): New, factored from...
15585 * data/lalr1.cc, data/yacc.c, glr.c: here.
15586
15587 2002-06-28 Akim Demaille <akim@epita.fr>
15588
15589 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
15590 unused variables.
15591 * src/output.c (merger_output): static.
15592
15593 2002-06-28 Akim Demaille <akim@epita.fr>
15594
15595 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
15596 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
15597 pacify GCC.
15598 * src/output.c (save_row): Initialize all the variables to pacify GCC.
15599
15600 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15601
15602 Accumulated changelog for new GLR parsing features.
15603
15604 * src/conflicts.c (count_total_conflicts): Change name to
15605 conflicts_total_count.
15606 * src/conflicts.h: Ditto.
15607 * src/output.c (token_actions): Use the new name.
15608 (output_conflicts): Change conflp => conflict_list_heads, and
15609 confl => conflict_list for better readability.
15610 * data/glr.c: Use the new names.
15611 * NEWS: Add self to GLR announcement.
15612
15613 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
15614
15615 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
15616 Akim Demaille.
15617
15618 * data/bison.glr: Change name to glr.c
15619 * data/glr.c: Renamed from bison.glr.
15620 * data/Makefile.am: Add glr.c
15621
15622 * src/getargs.c:
15623
15624 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
15625 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
15626
15627 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15628
15629 * data/bison.glr: Be sure to restore the
15630 current #line when returning to the skeleton contents after having
15631 exposed the input file's #line.
15632
15633 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15634
15635 * data/bison.glr: Bring up to date with changes to bison.simple.
15636
15637 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15638
15639 * data/bison.glr: Correct definitions that use b4_prefix.
15640 Various reformatting.
15641 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
15642 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
15643 yytokenp argument; now part of stack.
15644 (yychar): Define to behave as documented.
15645 (yyclearin): Ditto.
15646
15647 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15648
15649 * src/reader.h: Add declaration for free_merger_functions.
15650
15651 * src/reader.c (merge_functions): New variable.
15652 (get_merge_function): New function.
15653 (free_merger_functions): New function.
15654 (readgram): Check for %prec that is not followed by a symbol.
15655 Handle %dprec and %merge declarations.
15656 (packgram): Initialize dprec and merger fields in rules array.
15657
15658 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
15659 conflict_list_cnt, conflict_list_free): New variables.
15660 (table_grow): Also grow conflict_table.
15661 (prepare_rules): Output dprec and merger tables.
15662 (conflict_row): New function.
15663 (action_row): Output conflict lists for GLR parser. Don't use
15664 default reduction in conflicted states for GLR parser so that there
15665 are spaces for the conflict lists.
15666 (save_row): Also save conflict information.
15667 (token_actions): Allocate conflict list.
15668 (merger_output): New function.
15669 (pack_vector): Pack conflict table, too.
15670 (output_conflicts): New function to output yyconflp and yyconfl.
15671 (output_check): Allocate conflict_tos.
15672 (output_actions): Output conflict tables, also.
15673 (output_skeleton): Output b4_mergers definition.
15674 (prepare): Output b4_max_rhs_length definition.
15675 Use 'bison.glr' as default skeleton for GLR parsers.
15676
15677 * src/gram.c (glr_parser): New flag.
15678 (grammar_free): Call free_merger_functions.
15679
15680 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
15681 all pairs of conflicting reductions, rather than just all tokens
15682 causing conflicts. Needed to size conflict tables.
15683 (conflicts_output): Modify call to count_rr_conflicts for new
15684 interface.
15685 (conflicts_print): Ditto.
15686 (count_total_conflicts): New function.
15687
15688 * src/reader.h (merger_list): New type.
15689 (merge_functions): New variable.
15690
15691 * src/lex.h (tok_dprec, tok_merge): New token types.
15692
15693 * src/gram.h (rule_s): Add dprec and merger fields.
15694 (glr_parser): New flag.
15695
15696 * src/conflicts.h (count_total_conflicts): New function.
15697
15698 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
15699
15700 * doc/bison.texinfo (Generalized LR Parsing): New section.
15701 (GLR Parsers): New section.
15702 (Language and Grammar): Mention GLR parsing.
15703 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
15704 Correct typo ("tge" -> "the").
15705
15706 * data/bison.glr: New skeleton for GLR parsing.
15707
15708 * tests/cxx-gram.at: New tests for GLR parsing.
15709
15710 * tests/testsuite.at: Include cxx-gram.at.
15711
15712 * tests/Makefile.am: Add cxx-gram.at.
15713
15714 * src/parse-gram.y:
15715
15716 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
15717
15718 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
15719
15720 2002-06-27 Akim Demaille <akim@epita.fr>
15721
15722 * src/options.h, src/options.c: Remove.
15723 * src/getargs.c (short_options, long_options): New.
15724
15725 2002-06-27 Akim Demaille <akim@epita.fr>
15726
15727 * data/bison.simple, data/bison.c++: Rename as...
15728 * data/yacc.c, data/lalr1.cc: these.
15729 * doc/bison.texinfo (Environment Variables): Remove.
15730
15731 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
15732
15733 * src/getargs.c (report_argmatch): Initialize strtok().
15734
15735 2002-06-20 Akim Demaille <akim@epita.fr>
15736
15737 * data/bison.simple (b4_symbol_actions): New, replaces...
15738 (b4_symbol_destructor, b4_symbol_printer): these.
15739 (yysymprint): Be sure to call YYPRINT only for tokens, and using
15740 user token numbers.
15741
15742 2002-06-20 Akim Demaille <akim@epita.fr>
15743
15744 * data/bison.simple (yydestructor): Rename as...
15745 (yydestruct): this.
15746
15747 2002-06-20 Akim Demaille <akim@epita.fr>
15748
15749 * src/symtab.h, src/symtab.c (symbol_type_set)
15750 (symbol_destructor_set, symbol_precedence_set): The location is
15751 the last argument.
15752 Adjust all callers.
15753
15754 2002-06-20 Akim Demaille <akim@epita.fr>
15755
15756 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
15757 internals.
15758 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
15759 Takes a location.
15760 * src/symtab.h, src/symtab.c (symbol_class_set)
15761 (symbol_user_token_number_set): Likewise.
15762 Adjust all callers.
15763 Promote complain_at.
15764 * tests/input.at (Type Clashes): Adjust.
15765
15766 2002-06-20 Akim Demaille <akim@epita.fr>
15767
15768 * data/bison.simple (YYLEX): Fix the declaration when
15769 %pure-parser.
15770
15771 2002-06-20 Akim Demaille <akim@epita.fr>
15772
15773 * data/bison.simple (yysymprint): Don't print the token number,
15774 just its name.
15775 * tests/actions.at (Destructors): Rename as...
15776 (Printers and Destructors): this.
15777 Also exercise %printer.
15778
15779 2002-06-20 Akim Demaille <akim@epita.fr>
15780
15781 * data/bison.simple (YYDSYMPRINT): New.
15782 Use it to remove many of the #if YYDEBUG/if (yydebug).
15783
15784 2002-06-20 Akim Demaille <akim@epita.fr>
15785
15786 * src/symtab.h, src/symtab.c (symbol_t): printer and
15787 printer_location are new members.
15788 (symbol_printer_set): New.
15789 * src/parse-gram.y (PERCENT_PRINTER): New token.
15790 Handle its associated rule.
15791 * src/scan-gram.l: Adjust.
15792 (handle_destructor_at, handle_destructor_dollar): Rename as...
15793 (handle_symbol_code_at, handle_symbol_code_dollar): these.
15794 * src/output.c (symbol_printers_output): New.
15795 (output_skeleton): Call it.
15796 * data/bison.simple (yysymprint): New. Cannot be named yyprint
15797 since there are already many grammar files with a user `yyprint'.
15798 Replace the calls to YYPRINT to calls to yysymprint.
15799 * tests/calc.at: Adjust.
15800 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
15801 taking advantage of parser very internal details (stack size!).
15802
15803 2002-06-20 Akim Demaille <akim@epita.fr>
15804
15805 * src/scan-gram.l: Complete the scanner with the missing patterns
15806 to pacify Flex.
15807 Use `quote' and `symbol_tag_get' where appropriate.
15808
15809 2002-06-19 Akim Demaille <akim@epita.fr>
15810
15811 * tests/actions.at (Destructors): Augment to test locations.
15812 * data/bison.simple (yydestructor): Pass it the current location
15813 if locations are enabled.
15814 Prototype only when __STDC__ or C++.
15815 Change the argument names to move into the yy name space: there is
15816 user code here.
15817
15818 2002-06-19 Akim Demaille <akim@epita.fr>
15819
15820 * data/bison.simple (b4_pure_if): New.
15821 Use it instead of #ifdef YYPURE.
15822
15823 2002-06-19 Akim Demaille <akim@epita.fr>
15824
15825 * data/bison.simple (b4_location_if): New.
15826 Use it instead of #ifdef YYLSP_NEEDED.
15827
15828 2002-06-19 Akim Demaille <akim@epita.fr>
15829
15830 Prepare @$ in %destructor, but currently don't bind it in the
15831 skeleton, as %location use is not cleaned up yet.
15832
15833 * src/scan-gram.l (handle_dollar, handle_destructor_at)
15834 (handle_action_at): New.
15835 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
15836 a braced_code_t and a location as additional arguments.
15837 (handle_destructor_dollar): Instead of requiring `b4_eval', just
15838 unquote one when outputting `b4_dollar_dollar'.
15839 Adjust callers.
15840 * data/bison.simple (b4_eval): Remove.
15841 (b4_symbol_destructor): Adjust.
15842 * tests/input.at (Invalid @n): Adjust.
15843
15844 2002-06-19 Zack Weinberg <zack@codesourcery.com>
15845
15846 * doc/bison.texinfo: Document ability to have multiple
15847 prologue sections.
15848
15849 2002-06-18 Akim Demaille <akim@epita.fr>
15850
15851 * src/files.c (compute_base_names): When computing the output file
15852 names from the input file name, strip the directory part.
15853
15854 2002-06-18 Akim Demaille <akim@epita.fr>
15855
15856 * data/bison.simple.new: Comment changes.
15857 Reported by Andreas Schwab.
15858
15859 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
15860
15861 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
15862 there are no `label `yyoverflowlab' defined but not used' warnings
15863 when yyoverflow is defined.
15864
15865 2002-06-18 Akim Demaille <akim@epita.fr>
15866
15867 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
15868 new member.
15869 (symbol_destructor_set): Adjust.
15870 * src/output.c (symbol_destructors_output): Output the destructor
15871 locations.
15872 Output the symbol name.
15873 * data/bison.simple (b4_symbol_destructor): Adjust.
15874
15875 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
15876 and Akim Demaille <akim@epita.fr>
15877
15878 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
15879 what's left on the stack when the error recovery hits EOF.
15880 * tests/actions.at (Destructors): Complete to exercise this case.
15881
15882 2002-06-17 Akim Demaille <akim@epita.fr>
15883
15884 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
15885 arguments is really empty, not only equal to `[]'.
15886 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
15887 member.
15888 (symbol_destructor_set): New.
15889 * src/output.c (symbol_destructors_output): New.
15890 * src/reader.h (brace_code_t, current_braced_code): New.
15891 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
15892 (handle_dollar): Rename as...
15893 (handle_action_dollar): this.
15894 (handle_destructor_dollar): New.
15895 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
15896 (grammar_declaration): Use it.
15897 * data/bison.simple (yystos): Is always defined.
15898 (yydestructor): New.
15899 * tests/actions.at (Destructors): New.
15900 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
15901
15902 2002-06-17 Akim Demaille <akim@epita.fr>
15903
15904 * src/symlist.h, src/symlist.c (symbol_list_length): New.
15905 * src/scan-gram.l (handle_dollar, handle_at): Compute the
15906 rule_length only when needed.
15907 * src/output.c (actions_output, token_definitions_output): Output
15908 the full M4 block.
15909 * src/symtab.c: Don't access directly to the symbol tag, use
15910 symbol_tag_get.
15911 * src/parse-gram.y: Use symbol_list_free.
15912
15913 2002-06-17 Akim Demaille <akim@epita.fr>
15914
15915 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
15916 (symbol_list_prepend, get_type_name): Move to...
15917 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
15918 (symbol_list_prepend, symbol_list_n_type_name_get): here.
15919 Adjust all callers.
15920 (symbol_list_free): New.
15921 * src/scan-gram.l (handle_dollar): Takes a location.
15922 * tests/input.at (Invalid $n): Adjust.
15923
15924 2002-06-17 Akim Demaille <akim@epita.fr>
15925
15926 * src/reader.h, src/reader.c (symbol_list_new): Export it.
15927 (symbol_list_prepend): New.
15928 * src/parse-gram.y (%union): `list' is a new member.
15929 (symbols.1): New, replaces...
15930 (terms_to_prec.1, nterms_to_type.1): these.
15931 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
15932 Take a location as additional argument.
15933 Adjust all callers.
15934
15935 2002-06-15 Akim Demaille <akim@epita.fr>
15936
15937 * src/parse-gram.y: Move %token in the declaration section so that
15938 we don't depend upon CVS Bison.
15939
15940 2002-06-15 Akim Demaille <akim@epita.fr>
15941
15942 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
15943 * src/print.c (print_core): Use it.
15944
15945 2002-06-15 Akim Demaille <akim@epita.fr>
15946
15947 * src/conflicts.c (log_resolution): Accept the rule involved in
15948 the sr conflicts instead of the lookahead number that points to
15949 that rule.
15950 (flush_reduce): Accept the current lookahead vector as argument,
15951 instead of the index in LA.
15952 (resolve_sr_conflict): Accept the current number of lookahead
15953 bitset to consider for the STATE, instead of the index in LA.
15954 (set_conflicts): Adjust.
15955 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
15956
15957 2002-06-15 Akim Demaille <akim@epita.fr>
15958
15959 * src/state.h (state_t): Replace the `lookaheadsp' member, a
15960 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
15961 Adjust all dependencies.
15962 * src/lalr.c (initialize_lookaheads): Split into...
15963 (states_lookaheads_count, states_lookaheads_initialize): these.
15964 (lalr): Adjust.
15965
15966 2002-06-15 Akim Demaille <akim@epita.fr>
15967
15968 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
15969 out of...
15970 (grammar_rules_print): here.
15971 * src/reduce.c (reduce_output): Use it.
15972 * tests/reduce.at (Useless Rules, Reduced Automaton)
15973 (Underivable Rules): Adjust.
15974
15975 2002-06-15 Akim Demaille <akim@epita.fr>
15976
15977 Copy BYacc's nice way to report the grammar.
15978
15979 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
15980 New.
15981 Don't print the rules' location, it is confusing and useless.
15982 (rule_print): Use grammar_rhs_print.
15983 * src/print.c (print_grammar): Use grammar_rules_print.
15984
15985 2002-06-15 Akim Demaille <akim@epita.fr>
15986
15987 Complete and rationalize `useless thing' warnings.
15988
15989 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
15990 (symbol_tag_print): New.
15991 Use them everywhere in place of accessing directly the tag member.
15992 * src/gram.h, src/gram.c (rule_print): New.
15993 Use it where a rule used to be printed `by hand'.
15994 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
15995 (reduce_grammar_tables): Report the useless rules.
15996 (reduce_print): Useless things are a warning, not an error.
15997 Report it as such.
15998 * tests/reduce.at (Useless Nonterminals, Useless Rules):
15999 (Reduced Automaton, Underivable Rules): Adjust.
16000 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
16001 * tests/conflicts.at (Unresolved SR Conflicts)
16002 (Solved SR Conflicts): Adjust.
16003
16004 2002-06-15 Akim Demaille <akim@epita.fr>
16005
16006 Let symbols have a location.
16007
16008 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
16009 (getsym): Adjust.
16010 Adjust all callers.
16011 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
16012 Use location_t, not int.
16013 * src/symtab.c (symbol_check_defined): Take advantage of the
16014 location.
16015 * tests/regression.at (Invalid inputs): Adjust.
16016
16017 2002-06-15 Akim Demaille <akim@epita.fr>
16018
16019 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
16020 (input): Don't try to initialize yylloc here, do it in the
16021 scanner.
16022 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
16023 * src/gram.h (rule_t): Change line and action_line into location
16024 and action_location, of location_t type.
16025 Adjust all dependencies.
16026 * src/location.h, src/location.c (empty_location): New.
16027 * src/reader.h, src/reader.c (grammar_start_symbol_set)
16028 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
16029 (grammar_current_rule_symbol_append)
16030 (grammar_current_rule_action_append): Expect a location as argument.
16031 * src/reader.c (grammar_midrule_action): Adjust to attach an
16032 action's location as dummy symbol location.
16033 * src/symtab.h, src/symtab.c (startsymbol_location): New.
16034 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
16035 the line numbers.
16036
16037 2002-06-14 Akim Demaille <akim@epita.fr>
16038
16039 Grammar declarations may be found in the grammar section.
16040
16041 * src/parse-gram.y (rules_or_grammar_declaration): New.
16042 (declarations): Each declaration may end with a semicolon, not
16043 just...
16044 (grammar_declaration): `"%union"'.
16045 (grammar): Branch to rules_or_grammar_declaration.
16046
16047 2002-06-14 Akim Demaille <akim@epita.fr>
16048
16049 * src/main.c (main): Invoke scanner_free.
16050
16051 2002-06-14 Akim Demaille <akim@epita.fr>
16052
16053 * src/output.c (m4_invoke): Extracted from...
16054 (output_skeleton): here.
16055 Free tempfile.
16056
16057 2002-06-14 Akim Demaille <akim@epita.fr>
16058
16059 * src/parse-gram.y (directives, directive, gram)
16060 (grammar_directives, precedence_directives, precedence_directive):
16061 Rename as...
16062 (declarations, declaration, grammar, grammar_declaration)
16063 (precedence_declaration, precedence_declarator): these.
16064 (symbol_declaration): New.
16065
16066 2002-06-14 Akim Demaille <akim@epita.fr>
16067
16068 * src/files.c (action_obstack): Remove, unused.
16069 (output_obstack): Remove it, and all its dependencies, as it is no
16070 longer needed.
16071 * src/reader.c (epilogue_set): Build the epilogue in the
16072 muscle_obstack.
16073 * src/output.h, src/output.c (muscle_obstack): Move to...
16074 * src/muscle_tab.h, src/muscle_tab.h: here.
16075 (muscle_init): Initialize muscle_obstack.
16076 (muscle_free): New.
16077 * src/main.c (main): Call it.
16078
16079 2002-06-14 Akim Demaille <akim@epita.fr>
16080
16081 * src/location.h: New, extracted from...
16082 * src/reader.h: here.
16083 * src/Makefile.am (noinst_HEADERS): Merge into
16084 (bison_SOURCES): this.
16085 Add location.h.
16086 * src/parse-gram.y: Use location_t instead of Bison's.
16087 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
16088 Use location_t instead of ints.
16089
16090 2002-06-14 Akim Demaille <akim@epita.fr>
16091
16092 * data/bison.simple, data/bison.c++: Be sure to restore the
16093 current #line when returning to the skeleton contents after having
16094 exposed the input file's #line.
16095
16096 2002-06-12 Akim Demaille <akim@epita.fr>
16097
16098 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
16099 eager.
16100 * tests/actions.at (Exotic Dollars): New.
16101
16102 2002-06-12 Akim Demaille <akim@epita.fr>
16103
16104 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
16105 ['"/] too eagerly.
16106 * tests/input.at (Torturing the Scanner): New.
16107
16108 2002-06-11 Akim Demaille <akim@epita.fr>
16109
16110 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
16111 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
16112 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
16113 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
16114 * src/reader.c (reader): Use it.
16115
16116 2002-06-11 Akim Demaille <akim@epita.fr>
16117
16118 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
16119 Adjust all callers.
16120 (scanner_last_string_free): New.
16121
16122 2002-06-11 Akim Demaille <akim@epita.fr>
16123
16124 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
16125 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
16126 (last_string, YY_OBS_FREE): New.
16127 Use them when returning an ID.
16128
16129 2002-06-11 Akim Demaille <akim@epita.fr>
16130
16131 Have Bison grammars parsed by a Bison grammar.
16132
16133 * src/reader.c, src/reader.h (prologue_augment): New.
16134 * src/reader.c (copy_definition): Remove.
16135
16136 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
16137 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
16138 (grammar_current_rule_prec_set, grammar_current_rule_check)
16139 (grammar_current_rule_symbol_append)
16140 (grammar_current_rule_action_append): Export.
16141 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
16142 (symbol_list_action_append): Remove.
16143 Hook the routines from reader.
16144 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
16145 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
16146
16147 * src/reader.c (read_declarations): Remove, unused.
16148
16149 * src/parse-gram.y: Handle the epilogue.
16150 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
16151 (grammar_start_symbol_set): this.
16152 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
16153 * src/reader.c (readgram): Remove, unused.
16154 (reader): Adjust to insert eoftoken and axiom where appropriate.
16155
16156 * src/reader.c (copy_dollar): Replace with...
16157 * src/scan-gram.h (handle_dollar): this.
16158 * src/parse-gram.y: Remove `%thong'.
16159
16160 * src/reader.c (copy_at): Replace with...
16161 * src/scan-gram.h (handle_at): this.
16162
16163 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
16164 New.
16165
16166 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
16167 time being.
16168
16169 * src/reader.h, src/reader.c (grammar_rule_end): New.
16170
16171 * src/parse.y (current_type, current_class): New.
16172 Implement `%nterm', `%token' support.
16173 Merge `%term' into `%token'.
16174 (string_as_id): New.
16175 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
16176 type name.
16177
16178 * src/parse-gram.y: Be sure to handle properly the beginning of
16179 rules.
16180
16181 * src/parse-gram.y: Handle %type.
16182 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
16183
16184 * src/parse-gram.y: More directives support.
16185 * src/options.c: No longer handle source directives.
16186
16187 * src/parse-gram.y: Fix %output.
16188
16189 * src/parse-gram.y: Handle %union.
16190 Use the prologue locations.
16191 * src/reader.c (parse_union_decl): Remove.
16192
16193 * src/reader.h, src/reader.c (epilogue_set): New.
16194 * src/parse-gram.y: Use it.
16195
16196 * data/bison.simple, data/bison.c++: b4_stype is now either not
16197 defined, then default to int, or to the contents of %union,
16198 without `union' itself.
16199 Adjust.
16200 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
16201
16202 * src/output.c (actions_output): Don't output braces, as they are
16203 already handled by the scanner.
16204
16205 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
16206 characters to themselves.
16207
16208 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
16209 that the epilogue has a proper #line.
16210
16211 * src/parse-gram.y: Handle precedence/associativity.
16212
16213 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
16214 a terminal.
16215 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
16216 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
16217 at all to define terminals that cannot be emitted.
16218
16219 * src/scan-gram.l: Escape M4 characters.
16220
16221 * src/scan-gram.l: Working properly with escapes in user
16222 strings/characters.
16223
16224 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
16225 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
16226 grammar.
16227 Use more modest sizes, as for the time being the parser does not
16228 release memory, and therefore the process swallows a huge amount
16229 of memory.
16230
16231 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
16232 stricter %token grammar.
16233
16234 * src/symtab.h (associativity): Add `undef_assoc'.
16235 (symbol_precedence_set): Do nothing when passed an undef_assoc.
16236 * src/symtab.c (symbol_check_alias_consistence): Adjust.
16237
16238 * tests/regression.at (Invalid %directive): Remove, as it is now
16239 meaningless.
16240 (Invalid inputs): Adjust to the new error messages.
16241 (Token definitions): The new grammar doesn't allow too many
16242 eccentricities.
16243
16244 * src/lex.h, src/lex.c: Remove.
16245 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
16246 (copy_character, copy_string2, copy_string, copy_identifier)
16247 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
16248 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
16249 (parse_action): Remove.
16250 * po/POTFILES.in: Adjust.
16251
16252 2002-06-11 Akim Demaille <akim@epita.fr>
16253
16254 * src/reader.c (parse_action): Don't store directly into the
16255 rule's action member: return the action as a string.
16256 Don't require `rule_length' as an argument: compute it.
16257 (grammar_current_rule_symbol_append)
16258 (grammar_current_rule_action_append): New, eved out from
16259 (readgram): here.
16260 Remove `action_flag', `rulelength', unused now.
16261
16262 2002-06-11 Akim Demaille <akim@epita.fr>
16263
16264 * src/reader.c (grammar_current_rule_prec_set).
16265 (grammar_current_rule_check): New, eved out from...
16266 (readgram): here.
16267 Remove `xaction', `first_rhs': useless.
16268 * tests/input.at (Type clashes): New.
16269 * tests/existing.at (GNU Cim Grammar): Adjust.
16270
16271 2002-06-11 Akim Demaille <akim@epita.fr>
16272
16273 * src/reader.c (grammar_midrule_action): New, Eved out from
16274 (readgram): here.
16275
16276 2002-06-11 Akim Demaille <akim@epita.fr>
16277
16278 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
16279 New.
16280 (readgram): Use them as replacement of inlined code, crule and
16281 crule1.
16282
16283 2002-06-11 Akim Demaille <akim@epita.fr>
16284
16285 * src/reader.c (grammar_end, grammar_symbol_append): New.
16286 (readgram): Use them.
16287 Make the use of `p' as local as possible.
16288
16289 2002-06-10 Akim Demaille <akim@epita.fr>
16290
16291 GCJ's parser requires the tokens to be defined before the prologue.
16292
16293 * data/bison.simple: Output the token definition before the user's
16294 prologue.
16295 * tests/regression.at (Braces parsing, Duplicate string)
16296 (Mixing %token styles): Check the output from bison.
16297 (Early token definitions): New.
16298
16299 2002-06-10 Akim Demaille <akim@epita.fr>
16300
16301 * src/symtab.c (symbol_user_token_number_set): Don't complain when
16302 assigning twice the same user number to a token, so that we can
16303 use it in...
16304 * src/lex.c (lex): here.
16305 Also use `symbol_class_set' instead of hand written code.
16306 * src/reader.c (parse_assoc_decl): Likewise.
16307
16308 2002-06-10 Akim Demaille <akim@epita.fr>
16309
16310 * src/symtab.c, src/symtab.c (symbol_class_set)
16311 (symbol_user_token_number_set): New.
16312 * src/reader.c (parse_token_decl): Use them.
16313 Use a switch instead of ifs.
16314 Use a single argument.
16315
16316 2002-06-10 Akim Demaille <akim@epita.fr>
16317
16318 Remove `%thong' support as it is undocumented, unused, duplicates
16319 `%token's job, and creates useless e-mail traffic with people who
16320 want to know what it is, why it is undocumented, unused, and
16321 duplicates `%token's job.
16322
16323 * src/reader.c (parse_thong_decl): Remove.
16324 * src/options.c (option_table): Remove "thong".
16325 * src/lex.h (tok_thong): Remove.
16326
16327 2002-06-10 Akim Demaille <akim@epita.fr>
16328
16329 * src/symtab.c, src/symtab.c (symbol_type_set)
16330 (symbol_precedence_set): New.
16331 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
16332 (value_components_used): Remove, unused.
16333
16334 2002-06-09 Akim Demaille <akim@epita.fr>
16335
16336 Move symbols handling code out of the reader.
16337
16338 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
16339 (axiom): Move to...
16340 * src/symtab.h, src/symtab.c: here.
16341
16342 * src/gram.c (start_symbol): Remove: use startsymbol->number.
16343 * src/reader.c (startval): Rename as...
16344 * src/symtab.h, src/symtab.c (startsymbol): this.
16345 * src/reader.c: Adjust.
16346
16347 * src/reader.c (symbol_check_defined, symbol_make_alias)
16348 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
16349 (token_translations_init)
16350 Move to...
16351 * src/symtab.c: here.
16352 * src/reader.c (packsymbols): Move to...
16353 * src/symtab.h, src/symtab.c (symbols_pack): here.
16354 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
16355 argument.
16356
16357 2002-06-03 Akim Demaille <akim@epita.fr>
16358
16359 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
16360 then statements.
16361
16362 2002-06-03 Akim Demaille <akim@epita.fr>
16363
16364 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
16365 structs with non literals.
16366 * src/scan-skel.l: never-interactive.
16367 * src/conflicts.c (enum conflict_resolution_e): No trailing
16368 comma.
16369 * src/getargs.c (usage): Split long literal strings.
16370 Reported by Hans Aberg.
16371
16372 2002-05-28 Akim Demaille <akim@epita.fr>
16373
16374 * data/bison.c++: Use C++ ostreams.
16375 (cdebug_): New member.
16376
16377 2002-05-28 Akim Demaille <akim@epita.fr>
16378
16379 * src/output.c (output_skeleton): Be sure to allocate enough room
16380 for `/' _and_ for `\0' in full_skeleton.
16381
16382 2002-05-28 Akim Demaille <akim@epita.fr>
16383
16384 * data/bison.c++: Catch up with bison.simple:
16385 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16386 and Paul Eggert <eggert@twinsun.com>: `error' handing.
16387 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
16388 and popping traces.
16389
16390 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16391
16392 * src/output.c (output_skeleton): Put an explicit path in front of
16393 the skeleton file name, rather than relying on the -I directory,
16394 to partially alleviate effects of having a skeleton file lying around
16395 in the current directory.
16396
16397 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16398
16399 * src/conflicts.c (log_resolution): Correct typo:
16400 obstack_printf should be obstack_fgrow1.
16401
16402 2002-05-26 Akim Demaille <akim@epita.fr>
16403
16404 * src/state.h (state_t): `solved_conflicts' is a new member.
16405 * src/LR0.c (new_state): Set it to 0.
16406 * src/conflicts.h, src/conflicts.c (print_conflicts)
16407 (free_conflicts, solve_conflicts): Rename as...
16408 (conflicts_print, conflicts_free, conflicts_solve): these.
16409 Adjust callers.
16410 * src/conflicts.c (enum conflict_resolution_e)
16411 (solved_conflicts_obstack): New, used by...
16412 (log_resolution): this.
16413 Adjust to attach the conflict resolution to each state.
16414 Complete the description with the precedence/associativity
16415 information.
16416 (resolve_sr_conflict): Adjust.
16417 * src/print.c (print_state): Output its solved_conflicts.
16418 * tests/conflicts.at (Unresolved SR Conflicts)
16419 (Solved SR Conflicts): Exercise --report=all.
16420
16421 2002-05-26 Akim Demaille <akim@epita.fr>
16422
16423 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
16424 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
16425 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
16426 (token_number_t, item_number_as_token_number)
16427 (token_number_as_item_number, muscle_insert_token_number_table):
16428 Rename as...
16429 (symbol_number_t, item_number_as_symbol_number)
16430 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
16431 these, since it is more appropriate.
16432
16433 2002-05-26 Akim Demaille <akim@epita.fr>
16434
16435 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
16436 `Error:' lines.
16437 * data/bison.simple (yystos) [YYDEBUG]: New.
16438 (yyparse) [YYDEBUG]: Display the symbols which are popped during
16439 error recovery.
16440 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
16441
16442 2002-05-25 Akim Demaille <akim@epita.fr>
16443
16444 * doc/bison.texinfo (Debugging): Split into...
16445 (Tracing): this new section, its former contents, and...
16446 (Understanding): this new section.
16447 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
16448 by...
16449 (report_flag): this.
16450 Adjust all dependencies.
16451 (report_args, report_types, report_argmatch): New.
16452 (usage, getargs): Report/support -r, --report.
16453 * src/options.h
16454 (struct option_table_struct): Rename as..,
16455 (struct option_table_s): this.
16456 Rename the `set_flag' member to `flag' to match with getopt_long's
16457 struct.
16458 * src/options.c (option_table): Split verbose into an entry for
16459 %verbose, and another for --verbose.
16460 Support --report/-r, so remove -r from the obsolete --raw.
16461 * src/print.c: Attach full item sets and lookaheads reports to
16462 report_flag instead of trace_flag.
16463 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
16464
16465 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16466 and Paul Eggert <eggert@twinsun.com>
16467
16468 * data/bison.simple (yyparse): Correct error handling to conform to
16469 POSIX and yacc. Specifically, after syntax error is discovered,
16470 do not reduce further before shifting the error token.
16471 Clean up the code a bit by removing the labels yyerrdefault,
16472 yyerrhandle, yyerrpop.
16473 * NEWS: Document the above.
16474
16475 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16476
16477 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
16478 type; it isn't always big enough, since it doesn't necessarily
16479 include non-terminals.
16480 (yytranslate): Expand definition of yy_token_number_type, so that
16481 the latter can be removed.
16482 (yy_token_number_type): Remove, only one use.
16483 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
16484 don't use TokenNumberType as element type.
16485
16486 * tests/regression.at: Modify expected output to agree with change
16487 to yyr1 and yytranslate.
16488
16489 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
16490
16491 * src/reader.c (parse_action): Use copy_character instead of
16492 obstack_1grow.
16493
16494 2002-05-13 Akim Demaille <akim@epita.fr>
16495
16496 * tests/regression.at (Token definitions): Prototype yylex and
16497 yyerror.
16498
16499 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16500
16501 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
16502 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
16503 32-bit arithmetic.
16504 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
16505
16506 2002-05-07 Akim Demaille <akim@epita.fr>
16507
16508 * tests/synclines.at: Be sure to prototype yylex and yyerror to
16509 avoid GCC warnings.
16510
16511 2002-05-07 Akim Demaille <akim@epita.fr>
16512
16513 Kill GCC warnings.
16514
16515 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
16516 over the RHS of each rule.
16517 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
16518 * src/state.h (state_t): Member `nitems' is unsigned short.
16519 * src/LR0.c (get_state): Adjust.
16520 * src/reader.c (packgram): Likewise.
16521 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
16522 `Type'.
16523 (muscle_insert_int_table): Remove, unused.
16524 (prepare_rules): Remove `max'.
16525
16526 2002-05-06 Akim Demaille <akim@epita.fr>
16527
16528 * src/closure.c (print_firsts): Display of the symbol tags.
16529 (bitmatrix_print): Move to...
16530 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
16531 here.
16532 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
16533
16534 2002-05-06 Akim Demaille <akim@epita.fr>
16535
16536 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
16537 hash_do_for_each.
16538
16539 2002-05-06 Akim Demaille <akim@epita.fr>
16540
16541 * src/LR0.c (new_state, get_state): Instead of using the global
16542 `kernel_size' and `kernel_base', have two new arguments:
16543 `core_size' and `core'.
16544 Adjust callers.
16545
16546 2002-05-06 Akim Demaille <akim@epita.fr>
16547
16548 * src/reader.c (packgram): No longer end `ritem' with a 0
16549 sentinel: it is not used.
16550
16551 2002-05-05 Akim Demaille <akim@epita.fr>
16552
16553 New experimental feature: display the lookaheads in the report and
16554 graph.
16555
16556 * src/print (print_core): When --trace-flag, display the rules
16557 lookaheads.
16558 * src/print_graph.c (print_core): Likewise.
16559 Swap the arguments.
16560 Adjust caller.
16561
16562 2002-05-05 Akim Demaille <akim@epita.fr>
16563
16564 * tests/torture.at (Many lookaheads): New test.
16565
16566 2002-05-05 Akim Demaille <akim@epita.fr>
16567
16568 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
16569 (GENERATE_MUSCLE_INSERT_TABLE): this.
16570 (output_int_table, output_unsigned_int_table, output_short_table)
16571 (output_token_number_table, output_item_number_table): Replace with...
16572 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
16573 (muscle_insert_short_table, muscle_insert_token_number_table)
16574 (muscle_insert_item_number_table): these.
16575 Adjust all callers.
16576 (prepare_tokens): Don't free `translations', since...
16577 * src/reader.h, src/reader.c (grammar_free): do it.
16578 Move to...
16579 * src/gram.h, src/gram.c (grammar_free): here.
16580 * data/bison.simple, data/bison.c++: b4_token_number_max is now
16581 b4_translate_max.
16582
16583 2002-05-05 Akim Demaille <akim@epita.fr>
16584
16585 * src/output.c (output_unsigned_int_table): New.
16586 (prepare_rules): `i' is unsigned.
16587 `prhs', `rline', `r2' are unsigned int.
16588 Rename muscle `rhs_number_max' as `rhs_max'.
16589 Output muscles `prhs_max', `rline_max', and `r2_max'.
16590 Free rline and r1.
16591 * data/bison.simple, data/bison.c++: Adjust to use these muscles
16592 to compute types instead of constant types.
16593 * tests/regression.at (Web2c Actions): Adjust.
16594
16595 2002-05-04 Akim Demaille <akim@epita.fr>
16596
16597 * src/symtab.h (SALIAS, SUNDEF): Rename as...
16598 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
16599 Adjust dependencies.
16600 * src/output.c (token_definitions_output): Be sure not to output a
16601 `#define 'a'' when fed with `%token 'a' "a"'.
16602 * tests/regression.at (Token definitions): New.
16603
16604 2002-05-03 Paul Eggert <eggert@twinsun.com>
16605
16606 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
16607 for K&R C.
16608
16609 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
16610
16611 * Makefile.am (SUBDIRS): Remove intl.
16612 (EXTRA_DIST): Add config/config.rpath.
16613
16614 2002-05-03 Akim Demaille <akim@epita.fr>
16615
16616 * data/bison.simple (m4_if): Don't output empty enums.
16617 And actually, output valid enum definitions :(.
16618
16619 2002-05-03 Akim Demaille <akim@epita.fr>
16620
16621 * configure.bat: Remove, completely obsolete.
16622 * Makefile.am (EXTRA_DIST): Adjust.
16623 Don't distribute config.rpath...
16624 * config/Makefile.am (EXTRA_DIST): Do it.
16625
16626 2002-05-03 Akim Demaille <akim@epita.fr>
16627
16628 * configure.in (GETTEXT_VERSION): New.
16629 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
16630
16631 2002-05-03 Akim Demaille <akim@epita.fr>
16632
16633 * data/bison.simple (b4_token_enum): New.
16634 (b4_token_defines): Use it to output tokens both as #define and
16635 enums.
16636 Suggested by Paul Eggert.
16637 * src/output.c (token_definitions_output): Don't output spurious
16638 white spaces.
16639
16640 2002-05-03 Akim Demaille <akim@epita.fr>
16641
16642 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
16643
16644 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
16645
16646 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
16647 Update the stack class, give a try to deque as the default container.
16648
16649 2002-05-02 Akim Demaille <akim@epita.fr>
16650
16651 * data/bison.simple (yyparse): Do not implement @$ = @1.
16652 (YYLLOC_DEFAULT): Adjust to do it.
16653 * doc/bison.texinfo (Location Default Action): Fix.
16654
16655 2002-05-02 Akim Demaille <akim@epita.fr>
16656
16657 * src/reader.c (parse_braces): Merge into...
16658 (parse_action): this.
16659
16660 2002-05-02 Akim Demaille <akim@epita.fr>
16661
16662 * configure.in (ALL_LINGUAS): Remove.
16663 * po/LINGUAS, hr.po: New.
16664
16665 2002-05-02 Akim Demaille <akim@epita.fr>
16666
16667 Remove the so called hairy (semantic) parsers.
16668
16669 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
16670 * src/gram.h, src/gram.c (semantic_parser): Remove.
16671 (rule_t): Remove the guard and guard_line members.
16672 * src/lex.h (token_t): remove tok_guard.
16673 * src/options.c (option_table): Remove %guard and %semantic_parser
16674 support.
16675 * src/output.c, src/output.h (guards_output): Remove.
16676 (prepare): Adjust.
16677 (token_definitions_output): Don't output the `T'
16678 tokens (???).
16679 (output_skeleton): Don't output the guards.
16680 * src/files.c, src/files.c (attrsfile): Remove.
16681 * src/reader.c (symbol_list): Remove the guard and guard_line
16682 members.
16683 Adjust dependencies.
16684 (parse_guard): Remove.
16685 * data/bison.hairy: Remove.
16686 * doc/bison.texinfo (Environment Variables): Remove occurrences of
16687 BISON_HAIRY.
16688
16689 2002-05-02 Akim Demaille <akim@epita.fr>
16690
16691 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
16692 (parse_guard): Rename the formal argument `stack_offset' as
16693 `rule_length', which is more readable.
16694 Adjust callers.
16695 (copy_at, copy_dollar): Instead of outputting the hard coded
16696 values of $$, $n and so forth, output invocation to b4_lhs_value,
16697 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
16698 Note: this patch partially drops `semantic-parser' support: it
16699 always does `rule_length - n', where semantic parsers ought to
16700 always use `-n'.
16701 * data/bison.simple, data/bison.c++ (b4_lhs_value)
16702 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
16703
16704 2002-05-02 Akim Demaille <akim@epita.fr>
16705
16706 * configure.in (AC_INIT): Bump to 1.49b.
16707 (AM_INIT_AUTOMAKE): Short invocation.
16708
16709 2002-05-02 Akim Demaille <akim@epita.fr>
16710
16711 Version 1.49a.
16712
16713 2002-05-01 Akim Demaille <akim@epita.fr>
16714
16715 * src/skeleton.h: Remove.
16716
16717 2002-05-01 Akim Demaille <akim@epita.fr>
16718
16719 * src/skeleton.h: Fix the #endif.
16720 Reported by Magnus Fromreide.
16721
16722 2002-04-26 Paul Eggert <eggert@twinsun.com>
16723
16724 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
16725 Define if we define YYSTYPE and YYLTYPE, respectively.
16726 (YYCOPY): Fix [] quoting problem in the non-GCC case.
16727
16728 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
16729
16730 * src/scan-skel.l: Postprocess quadrigraphs.
16731
16732 * src/reader.c (copy_character): New function, used to output
16733 single characters while replacing `[' and `]' with quadrigraphs, to
16734 avoid troubles with M4 quotes.
16735 (copy_comment): Output characters with copy_character.
16736 (read_additionnal_code): Likewise.
16737 (copy_string2): Likewise.
16738 (copy_definition): Likewise.
16739
16740 * tests/calc.at: Exercise M4 quoting.
16741
16742 2002-04-25 Akim Demaille <akim@epita.fr>
16743
16744 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
16745 between `!' and the command.
16746 Reported by Paul Eggert.
16747
16748 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
16749
16750 * tests/calc.at: Exercise prologue splitting.
16751
16752 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
16753 `b4_post_prologue' instead of `b4_prologue'.
16754
16755 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
16756 muscles.
16757 (output): Free pre_prologue_obstack and post_prologue_obstack.
16758 * src/files.h, src/files.c (attrs_obstack): Remove.
16759 (pre_prologue_obstack, post_prologue_obstack): New.
16760 * src/reader.c (copy_definition): Add a parameter to specify the
16761 obstack to fill, instead of using attrs_obstack unconditionally.
16762 (read_declarations): Pass pre_prologue_obstack to copy_definition if
16763 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
16764
16765 2002-04-23 Paul Eggert <eggert@twinsun.com>
16766
16767 * data/bison.simple: Remove unnecessary commentary and white
16768 space differences from 1_29-branch.
16769 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
16770
16771 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
16772 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
16773 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
16774 constructors or destructors.
16775
16776 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
16777
16778 2002-04-23 Akim Demaille <akim@epita.fr>
16779
16780 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
16781 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
16782 location with columns.
16783 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
16784 All reported by Paul Eggert.
16785
16786 2002-04-22 Akim Demaille <akim@epita.fr>
16787
16788 * src/reduce.c (dump_grammar): Move to...
16789 * src/gram.h, src/gram.c (grammar_dump): here.
16790 Be sure to separate long item numbers.
16791 Don't read the members of a rule's prec if its nil.
16792
16793 2002-04-22 Akim Demaille <akim@epita.fr>
16794
16795 * src/output.c (table_size, table_grow): New.
16796 (MAXTABLE): Remove, replace uses with table_size.
16797 (pack_vector): Instead of dying when the table is too big, grow it.
16798
16799 2002-04-22 Akim Demaille <akim@epita.fr>
16800
16801 * data/bison.simple (yyr1): Its type is that of a token number.
16802 * data/bison.c++ (r1_): Likewise.
16803 * tests/regression.at (Web2c Actions): Adjust.
16804
16805 2002-04-22 Akim Demaille <akim@epita.fr>
16806
16807 * src/reader.c (token_translations_init): 256 is now the default
16808 value for the error token, i.e., it will be assigned another
16809 number if the user assigned 256 to one of her tokens.
16810 (reader): Don't force 256 to error.
16811 * doc/bison.texinfo (Symbols): Adjust.
16812 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
16813 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
16814 etc. instead of 10, 20, 30 (which was used to `jump' over error
16815 (256) and undefined (2)).
16816
16817 2002-04-22 Akim Demaille <akim@epita.fr>
16818
16819 Propagate more token_number_t.
16820
16821 * src/gram.h (token_number_as_item_number)
16822 (item_number_as_token_number): New.
16823 * src/output.c (GENERATE_OUTPUT_TABLE): New.
16824 Use it to create output_item_number_table and
16825 output_token_number_table.
16826 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
16827 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
16828 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
16829 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
16830
16831 2002-04-22 Akim Demaille <akim@epita.fr>
16832
16833 * src/output.h, src/output.c (get_lines_number): Remove.
16834
16835 2002-04-19 Akim Demaille <akim@epita.fr>
16836
16837 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
16838 as Lex/Flex'.
16839 (Debugging): More details about enabling the debugging features.
16840 (Table of Symbols): Describe $$, $n, @$, and @n.
16841 Suggested by Tim Josling.
16842
16843 2002-04-19 Akim Demaille <akim@epita.fr>
16844
16845 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
16846
16847 2002-04-10 Akim Demaille <akim@epita.fr>
16848
16849 * src/system.h: Rely on HAVE_LIMITS_H.
16850 Suggested by Paul Eggert.
16851
16852 2002-04-09 Akim Demaille <akim@epita.fr>
16853
16854 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
16855 full stderr, and strip it according to the bison options, instead
16856 of composing the error message from different bits.
16857 This makes it easier to check for several error messages.
16858 Adjust all the invocations.
16859 Add an invocation exercising the error token.
16860 Add an invocation demonstrating a stupid error message.
16861 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
16862 Adjust the tests.
16863 Error message are for stderr, not stdout.
16864
16865 2002-04-09 Akim Demaille <akim@epita.fr>
16866
16867 * src/gram.h, src/gram.c (error_token_number): Remove, use
16868 errtoken->number.
16869 * src/reader.c (reader): Don't specify the user token number (2)
16870 for $undefined, as it uselessly prevents using it.
16871 * src/gram.h (token_number_t): Move to...
16872 * src/symtab.h: here.
16873 (state_t.number): Is a token_number_t.
16874 * src/print.c, src/reader.c: Use undeftoken->number instead of
16875 hard coded 2.
16876 (Even though this 2 is not the same as above: the number of the
16877 undeftoken remains being 2, it is its user token number which
16878 might not be 2).
16879 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
16880 `user_token_number_max'.
16881 Output `undef_token_number'.
16882 * data/bison.simple, data/bison.c++: Use them.
16883 Be sure to map invalid yylex return values to
16884 `undef_token_number'. This saves us from gratuitous SEGV.
16885
16886 * tests/conflicts.at (Solved SR Conflicts)
16887 (Unresolved SR Conflicts): Adjust.
16888 * tests/regression.at (Web2c Actions): Adjust.
16889
16890 2002-04-08 Akim Demaille <akim@epita.fr>
16891
16892 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
16893 Adding #line.
16894 Remove the duplicate `typedefs'.
16895 (RhsNumberType): Fix the declaration and various other typos.
16896 Use __ofile__.
16897 * data/bison.simple: Use __ofile__.
16898 * src/scan-skel.l: Handle __ofile__.
16899
16900 2002-04-08 Akim Demaille <akim@epita.fr>
16901
16902 * src/gram.h (item_number_t): New, the type of item numbers in
16903 RITEM. Note that it must be able to code symbol numbers as
16904 positive number, and the negation of rule numbers as negative
16905 numbers.
16906 Adjust all dependencies (pretty many).
16907 * src/reduce.c (rule): Remove this `short *' pointer: use
16908 item_number_t.
16909 * src/system.h (MINSHORT, MAXSHORT): Remove.
16910 Include `limits.h'.
16911 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
16912 (shortcpy): Remove.
16913 (MAXTABLE): Move to...
16914 * src/output.c (MAXTABLE): here.
16915 (prepare_rules): Use output_int_table to output rhs.
16916 * data/bison.simple, data/bison.c++: Adjust.
16917 * tests/torture.at (Big triangle): Move the limit from 254 to
16918 500.
16919 * tests/regression.at (Web2c Actions): Ajust.
16920
16921 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
16922 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
16923 passes, but produces negative #line number, once fixed, GCC is
16924 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
16925 C), it passes.
16926 * src/state.h (state_h): Code input lines on ints, not shorts.
16927
16928 2002-04-08 Akim Demaille <akim@epita.fr>
16929
16930 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
16931 and then the grammar.
16932
16933 2002-04-08 Akim Demaille <akim@epita.fr>
16934
16935 * src/system.h: No longer using strndup.
16936
16937 2002-04-07 Akim Demaille <akim@epita.fr>
16938
16939 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
16940 * src/output.c (output_table_data): Return the longest number.
16941 (prepare_tokens): Output `token_number_max').
16942 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
16943 New.
16944 Use them to define yy_token_number_type/TokenNumberType.
16945 Use this type for yytranslate.
16946 * tests/torture.at (Big triangle): Push the limit from 124 to
16947 253.
16948 * tests/regression.at (Web2c Actions): Adjust.
16949
16950 2002-04-07 Akim Demaille <akim@epita.fr>
16951
16952 * tests/torture.at (Big triangle): New.
16953 (GNU AWK Grammar, GNU Cim Grammar): Move to...
16954 * tests/existing.at: here.
16955
16956 2002-04-07 Akim Demaille <akim@epita.fr>
16957
16958 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
16959 nritems.
16960 Adjust dependencies.
16961
16962 2002-04-07 Akim Demaille <akim@epita.fr>
16963
16964 * src/reader.c: Normalize increments to prefix form.
16965
16966 2002-04-07 Akim Demaille <akim@epita.fr>
16967
16968 * src/reader.c, symtab.c: Remove debugging code.
16969
16970 2002-04-07 Akim Demaille <akim@epita.fr>
16971
16972 Rename all the `bucket's as `symbol_t'.
16973
16974 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
16975 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
16976 * src/symtab.c, src/symtab.h (bucket): Rename as...
16977 (symbol_t): this.
16978 (symbol_list_new, bucket_check_defined, bucket_make_alias)
16979 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
16980 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
16981 (buckets_new, buckets_free, buckets_do): Rename as...
16982 (symbol_list_new, symbol_check_defined, symbol_make_alias)
16983 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
16984 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
16985 (symbols_new, symbols_free, symbols_do): these.
16986
16987 2002-04-07 Akim Demaille <akim@epita.fr>
16988
16989 Use lib/hash for the symbol table.
16990
16991 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
16992 EOF.
16993 * src/lex.c (lex): Set the `number' member of new terminals.
16994 * src/reader.c (bucket_check_defined, bucket_make_alias)
16995 (bucket_check_alias_consistence, bucket_translation): New.
16996 (reader, grammar_free, readgram, token_translations_init)
16997 (packsymbols): Adjust.
16998 (reader): Number the predefined tokens.
16999 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
17000 for predefined tokens.
17001 * src/symtab.h (bucket): Remove all the hash table related
17002 members.
17003 * src/symtab.c (symtab): Replace by...
17004 (bucket_table): this.
17005 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
17006 (buckets_new, buckets_do): New.
17007
17008 2002-04-07 Akim Demaille <akim@epita.fr>
17009
17010 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
17011 (start_symbol, max_user_token_number, semantic_parser)
17012 (error_token_number): Initialize.
17013 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
17014 Initialize.
17015 (reader): Don't.
17016 (errtoken, eoftoken, undeftoken, axiom): Extern.
17017
17018 2002-04-07 Akim Demaille <akim@epita.fr>
17019
17020 * src/gram.h (rule_s): prec and precsym are now pointers
17021 to the bucket giving the priority/associativity.
17022 Member `associativity' removed: useless.
17023 * src/reduce.c, src/conflicts.c: Adjust.
17024
17025 2002-04-07 Akim Demaille <akim@epita.fr>
17026
17027 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
17028 Properly escape the symbols' TAG when outputting them.
17029
17030 2002-04-07 Akim Demaille <akim@epita.fr>
17031
17032 * src/lalr.h (LA): Is a bitsetv, not bitset*.
17033
17034 2002-04-07 Akim Demaille <akim@epita.fr>
17035
17036 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
17037 (LArule): this, which is an array to rule_t*.
17038 * src/print.c, src/conflicts.c: Adjust.
17039
17040 2002-04-07 Akim Demaille <akim@epita.fr>
17041
17042 * src/gram.h (rule_t): Rename `number' as `user_number'.
17043 `number' is a new member.
17044 Adjust dependencies.
17045 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
17046
17047 2002-04-07 Akim Demaille <akim@epita.fr>
17048
17049 As a result of the previous patch, it is no longer needed
17050 to reorder ritem itself.
17051
17052 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
17053
17054 2002-04-07 Akim Demaille <akim@epita.fr>
17055
17056 Be sure never to walk through RITEMS, but use only data related to
17057 the rules themselves. RITEMS should be banished.
17058
17059 * src/output.c (output_token_translations): Rename as...
17060 (prepare_tokens): this.
17061 In addition to `translate', prepare the muscles `tname' and
17062 `toknum', which were handled by...
17063 (output_rule_data): this.
17064 Remove, and move the remainder of its outputs into...
17065 (prepare_rules): this new routines, which also merges content from
17066 (output_gram): this.
17067 (prepare_rules): Be sure never to walk through RITEMS.
17068 (output_stos): Rename as...
17069 (prepare_stos): this.
17070 (output): Always invoke prepare_states, after all, just don't use it
17071 in the output if you don't need it.
17072
17073 2002-04-07 Akim Demaille <akim@epita.fr>
17074
17075 * src/LR0.c (new_state): Display `nstates' as the name of the
17076 newly created state.
17077 Adjust to initialize first_state and last_state if needed.
17078 Be sure to distinguish the initial from the final state.
17079 (new_states): Create the itemset of the initial state, and use
17080 new_state.
17081 * src/closure.c (closure): Now that the initial state has its
17082 items properly set, there is no need for a special case when
17083 creating `ruleset'.
17084
17085 As a result, now the rule 0, reducing to $axiom, is visible in the
17086 outputs. Adjust the test suite.
17087
17088 * tests/conflicts.at (Solved SR Conflicts)
17089 (Unresolved SR Conflicts): Adjust.
17090 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
17091 * tests/conflicts.at (S/R in initial): New.
17092
17093 2002-04-07 Akim Demaille <akim@epita.fr>
17094
17095 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
17096 the RHS of the rules.
17097 * src/output.c (output_gram): Likewise.
17098
17099 2002-04-07 Akim Demaille <akim@epita.fr>
17100
17101 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
17102 bucket.
17103 Adjust all dependencies.
17104 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
17105 `number' of the buckets too.
17106 * src/gram.h: Include `symtab.h'.
17107 (associativity): Move to...
17108 * src/symtab.h: here.
17109 No longer include `gram.h'.
17110
17111 2002-04-07 Akim Demaille <akim@epita.fr>
17112
17113 * src/gram.h, src/gram.c (rules_rhs_length): New.
17114 (ritem_longest_rhs): Use it.
17115 * src/gram.h (rule_t): `number' is a new member.
17116 * src/reader.c (packgram): Set it.
17117 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
17118 the end of `rules', and count them out of `nrules'.
17119 (reduce_output, dump_grammar): Adjust.
17120 * src/print.c (print_grammar): It is no longer needed to check for
17121 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
17122 * tests/reduce.at (Reduced Automaton): New test.
17123
17124 2002-04-07 Akim Demaille <akim@epita.fr>
17125
17126 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
17127 lacking `+ 1' to nrules, Bison reported as useless a token if it
17128 was used solely to set the precedence of the last rule...
17129
17130 2002-04-07 Akim Demaille <akim@epita.fr>
17131
17132 * data/bison.c++, data/bison.simple: Don't output the current file
17133 name in #line, to avoid useless diffs between two identical
17134 outputs under different names.
17135
17136 2002-04-07 Akim Demaille <akim@epita.fr>
17137
17138 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
17139 Normalize loops to using `< nrules + 1', not `<= nrules'.
17140
17141 2002-04-07 Akim Demaille <akim@epita.fr>
17142
17143 * TODO: Update.
17144
17145 2002-04-07 Akim Demaille <akim@epita.fr>
17146
17147 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
17148 bucket.value as bucket.number.
17149
17150 2002-04-07 Akim Demaille <akim@epita.fr>
17151
17152 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
17153 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
17154 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
17155 RHS, instead of being an index in RITEMS.
17156
17157 2002-04-04 Paul Eggert <eggert@twinsun.com>
17158
17159 * doc/bison.texinfo: Update copyright date.
17160 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
17161 (Symbols): Warn about running Bison in one character set,
17162 but compiling and/or running in an incompatible one.
17163 Warn about character code 256, too.
17164
17165 2002-04-03 Paul Eggert <eggert@twinsun.com>
17166
17167 * src/bison.data (YYSTACK_ALLOC): Depend on whether
17168 YYERROR_VERBOSE is nonzero, not whether it is defined.
17169
17170 Merge changes from bison-1_29-branch.
17171
17172 2002-03-20 Paul Eggert <eggert@twinsun.com>
17173
17174 Merge fixes from Debian bison_1.34-1.diff.
17175
17176 * configure.in (AC_PREREQ): 2.53.
17177
17178 2002-03-20 Akim Demaille <akim@epita.fr>
17179
17180 * src/conflicts.c (log_resolution): Argument `resolution' is const.
17181
17182 2002-03-19 Paul Eggert <eggert@twinsun.com>
17183
17184 * src/bison.simple (YYCOPY): New macro.
17185 (YYSTACK_RELOCATE): Use it.
17186 Remove Type arg; no longer needed. All callers changed.
17187 (yymemcpy): Remove; no longer needed.
17188
17189 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
17190 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17191
17192 2002-03-19 Akim Demaille <akim@epita.fr>
17193
17194 Test and fix the #line outputs.
17195
17196 * tests/atlocal.at (GCC): New.
17197 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
17198 (Prologue synch line, %union synch line, Postprologue synch line)
17199 (Action synch line, Epilogue synch line): New tests.
17200 * src/reader.c (parse_union_decl): Define the muscle stype_line.
17201 * data/bison.simple, data/bison.c++: Use it.
17202
17203 2002-03-19 Akim Demaille <akim@epita.fr>
17204
17205 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
17206 (Solved SR Conflicts, %expect not enough, %expect right)
17207 (%expect too much): Move to...
17208 * tests/conflicts.at: this new file.
17209
17210 2002-03-19 Akim Demaille <akim@epita.fr>
17211
17212 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
17213 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
17214 that we can move to enums for instance.
17215 * src/output.c (token_definitions_output): Output a list of
17216 `token-name, token-number' instead of the #define.
17217 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
17218
17219 2002-03-14 Akim Demaille <akim@epita.fr>
17220
17221 Use Gettext 0.11.1.
17222
17223 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
17224
17225 * data/bison.c++: Make the user able to add members to the generated
17226 parser by subclassing.
17227
17228 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
17229
17230 * src/reader.c (read_additionnal_code): `c' should be an integer, not
17231 a character.
17232 Reported by Nicolas Tisserand and Nicolas Burrus.
17233
17234 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17235
17236 * src/reader.c: Warn about lacking semi-colons, do not complain.
17237
17238 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17239
17240 * data/bison.c++: Remove a debug line.
17241
17242 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17243
17244 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
17245 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
17246 provide a default implementation.
17247
17248 2002-03-04 Akim Demaille <akim@epita.fr>
17249
17250 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
17251 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
17252 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
17253 * tests/semantic.at (Parsing Guards): Similarly.
17254 * src/reader.at (readgram): Complain if the last rule is not ended
17255 with a semi-colon.
17256
17257 2002-03-04 Akim Demaille <akim@epita.fr>
17258
17259 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
17260 * src/closure.c: here.
17261 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
17262 RTC.
17263 * src/warshall.h, src/warshall.c: Remove.
17264 * tests/sets.at (Broken Closure): Adjust.
17265
17266 2002-03-04 Akim Demaille <akim@epita.fr>
17267
17268 * src/output.c (output_skeleton): tempdir is const.
17269 bytes_read is unused.
17270
17271 2002-03-04 Akim Demaille <akim@epita.fr>
17272
17273 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
17274 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
17275 Update.
17276 From Michael Hayes.
17277
17278 2002-03-04 Akim Demaille <akim@epita.fr>
17279
17280 * src/closure.c (closure): `r' is unused.
17281
17282 2002-03-04 Akim Demaille <akim@epita.fr>
17283
17284 * tests/sets.at (Broken Closure): Add the ending `;'.
17285 * src/reader.at (readgram): Complain if a rule is not ended with a
17286 semi-colon.
17287
17288 2002-03-04 Akim Demaille <akim@epita.fr>
17289
17290 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
17291 (count_sr_conflicts): Use bitset_count.
17292 * src/reduce.c (inaccessable_symbols): Ditto.
17293 (bits_size): Remove.
17294 * src/warshall.h, src/warshall.c: Convert to bitsetv.
17295
17296 2002-03-04 Akim Demaille <akim@epita.fr>
17297
17298 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
17299 * src/reduce.c: Remove the `bitset_zero's following the
17300 `bitset_create's, as now it is performed by the latter.
17301
17302 2002-03-04 Akim Demaille <akim@epita.fr>
17303
17304 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
17305 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
17306 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
17307 latest sources from Michael.
17308
17309 2002-03-04 Akim Demaille <akim@epita.fr>
17310
17311 * src/output.c (output): Don't free the grammar.
17312 * src/reader.c (grammar_free): New.
17313 * src/main.c (main): Call it and don't free symtab here.
17314
17315 2002-03-04 Akim Demaille <akim@epita.fr>
17316
17317 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
17318 before returning.
17319 Reported by Benoit Perrot.
17320
17321 2002-03-04 Akim Demaille <akim@epita.fr>
17322
17323 Use bitset operations when possible, not loops over bits.
17324
17325 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
17326 bitset_or.
17327 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
17328 * src/reduce.c (useless_nonterminals): Formatting changes.
17329 * src/warshall.c (TC): Use bitset_or.
17330
17331 2002-03-04 Akim Demaille <akim@epita.fr>
17332
17333 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
17334 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
17335 Ditto.
17336
17337 2002-03-04 Akim Demaille <akim@epita.fr>
17338
17339 * src/lalr.c (F): Now a bitset*.
17340 Adjust all dependencies.
17341
17342 2002-03-04 Akim Demaille <akim@epita.fr>
17343
17344 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
17345 Adjust all dependencies.
17346
17347 2002-03-04 Akim Demaille <akim@epita.fr>
17348
17349 * src/L0.c, src/LR0.h (nstates): Be size_t.
17350 Adjust comparisons (signed vs unsigned).
17351 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
17352 bitset*.
17353 Adjust all dependencies.
17354
17355 2002-03-04 Akim Demaille <akim@epita.fr>
17356
17357 * src/closure.c (firsts): Now, also a bitset.
17358 Adjust all dependencies.
17359 (varsetsize): Remove, now unused.
17360 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
17361
17362 2002-03-04 Akim Demaille <akim@epita.fr>
17363
17364 * src/print.c: Convert to use bitset.h, not hand coded iterations
17365 over ints.
17366
17367 2002-03-04 Akim Demaille <akim@epita.fr>
17368
17369 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
17370
17371 2002-03-04 Akim Demaille <akim@epita.fr>
17372
17373 * src/closure.c (ruleset): Be a bitset.
17374 (rulesetsize): Remove.
17375
17376 2002-03-04 Akim Demaille <akim@epita.fr>
17377
17378 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
17379 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
17380 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
17381 * src/closure.c (fderives): Be an array of bitsets.
17382
17383 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
17384
17385 * data/bison.c++: Merge the two generated headers. Insert a copyright
17386 notice in each output file.
17387
17388 2002-02-28 Akim Demaille <akim@epita.fr>
17389
17390 * data/bison.c++: Copy the prologue of bison.simple to fetch
17391 useful M4 definitions, such as b4_header_guard.
17392
17393 2002-02-25 Akim Demaille <akim@epita.fr>
17394
17395 * src/getargs.c (version): Give the name of the authors, and use a
17396 translator friendly scheme for the bgr
17397 copyright notice.
17398
17399 2002-02-25 Akim Demaille <akim@epita.fr>
17400
17401 * src/output.c (header_output): Remove, now handled completely via
17402 M4.
17403
17404 2002-02-25 Akim Demaille <akim@epita.fr>
17405
17406 * m4/m4.m4: New, from CVS Autoconf.
17407 * configure.in: Invoke it.
17408 * src/output.c (output_skeleton): Use its result instead of the
17409 hard coded name.
17410
17411 2002-02-25 Akim Demaille <akim@epita.fr>
17412
17413 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
17414 Fileutils 4.1.5.
17415 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
17416 * src/output.c (output_skeleton): Use mkstemp to create a real
17417 temporary file.
17418 Move the filling of `skeleton' and its muscle to...
17419 (prepare): here.
17420 (output): Move the definition of the prologue muscle to...
17421 (prepare): here.
17422 * src/system.h (DEFAULT_TMPDIR): New.
17423
17424 2002-02-14 Paul Eggert <eggert@twinsun.com>
17425
17426 Remove the support for C++ namespace cleanliness; it was
17427 causing more problems than it was curing, since it didn't work
17428 properly on some nonstandard C++ compilers. This can wait
17429 for a proper C++ parser.
17430
17431 * NEWS: Document this.
17432 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
17433 of C++, as it's treated like C now.
17434 * src/bison.simple (YYSTD): Remove.
17435 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
17436 Treat C++ just like Standard C instead of trying to support
17437 namespace cleanliness.
17438
17439 2002-02-14 Akim Demaille <akim@epita.fr>
17440
17441 * tests/regression.at (else): Adjust to Andreas' change.
17442
17443 2002-02-14 Akim Demaille <akim@epita.fr>
17444
17445 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
17446
17447 2002-02-13 Andreas Schwab <schwab@suse.de>
17448
17449 * src/output.c (output_rule_data): Don't output NULL, it might
17450 not be defined yet.
17451
17452 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
17453
17454 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
17455 (Copyright notice): Update.
17456
17457 2002-02-11 Akim Demaille <akim@epita.fr>
17458
17459 * tests/regression.at (%nonassoc and eof): Don't include
17460 nonportable headers.
17461
17462 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
17463
17464 * data/bison.c++: Correct error recovery. Make the user able to
17465 initialize the starting location.
17466
17467 2002-02-07 Akim Demaille <akim@epita.fr>
17468
17469 * tests/input.at: New.
17470
17471 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17472
17473 * data/bison.c++: Replace some direct m4 expansions by constants. Be
17474 more consistent when naming methods and variables. Put preprocessor
17475 directives around tables only needed for debugging.
17476
17477 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17478
17479 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
17480 C++ parsers.
17481 (yy::b4_name::parse): Use print_.
17482
17483 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17484
17485 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
17486
17487 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17488
17489 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
17490 C++ parsers.
17491 (yy::b4_name::parse): Build verbose error messages, and use error_.
17492
17493 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
17494
17495 * data/bison.c++: Fix m4 quoting in comments.
17496
17497 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
17498
17499 * data/bison.c++: Adjust the parser code. Fix some muscles that were
17500 not expanded by m4.
17501
17502 2002-02-05 Akim Demaille <akim@epita.fr>
17503
17504 * data/bison.c++: Adjust to the M4 back end.
17505 More is certainly needed.
17506
17507 2002-02-05 Akim Demaille <akim@epita.fr>
17508
17509 Give a try to M4 as a back end.
17510
17511 * lib/readpipe.c: New, from wdiff.
17512 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
17513 BISON_HAIRY.
17514 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
17515 specific values. Now it is m4 that performs the lookup.
17516 * src/parse-skel.y: Remove.
17517 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
17518 * src/output.c (actions_output, guards_output)
17519 (token_definitions_output): No longer keeps track of the output
17520 line number, hence remove the second argument.
17521 (guards_output): Check against the guard member of a rule, not the
17522 action member.
17523 Adjust callers.
17524 (output_skeleton): Don't look for the skeleton location, let m4 do
17525 that.
17526 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
17527 file will be used.
17528 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
17529 (prepare): Given that for the time being changesyntax is not
17530 usable in M4, rename the muscles using `-' to `_'.
17531 Define `defines_flag', `output_parser_name' and `output_header_name'.
17532 * src/output.h (actions_output, guards_output)
17533 (token_definitions_output): Adjust prototypes.
17534 * src/scan-skel.l: Instead of scanning the skeletons, it now
17535 processes the output of m4: `__oline__' and `#output'.
17536 * data/bison.simple: Adjust to be used by M4(sugar).
17537 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
17538 to date.
17539 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
17540 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
17541 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
17542 shamelessly stolen from CVS Autoconf.
17543
17544 2002-02-05 Akim Demaille <akim@epita.fr>
17545
17546 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
17547 * configure.in: Check for the declarations of free and malloc.
17548 * src/muscle_tab.c: Adjust.
17549
17550 2002-02-05 Akim Demaille <akim@epita.fr>
17551
17552 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
17553 which have no values.
17554
17555 2002-02-05 Akim Demaille <akim@epita.fr>
17556
17557 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
17558 * data/: here.
17559
17560 2002-01-29 Paul Eggert <eggert@twinsun.com>
17561
17562 * src/bison.simple (YYSIZE_T): Do not define merely because
17563 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
17564 On some platforms, <alloca.h> does not declare YYSTD (size_t).
17565
17566 2002-01-27 Akim Demaille <akim@epita.fr>
17567
17568 Fix `%nonassoc and eof'.
17569
17570 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
17571 which were not properly copied! Replace
17572 memcpy (res->errs, src->errs, src->nerrs);
17573 with
17574 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
17575 !!!
17576 * tests/regression.at (%nonassoc and eof): Adjust to newest
17577 Autotest: `.' is not in the PATH.
17578
17579 2002-01-27 Akim Demaille <akim@epita.fr>
17580
17581 * tests/sets.at (AT_EXTRACT_SETS): New.
17582 (Nullable): Use it.
17583 (Firsts): New.
17584
17585 2002-01-26 Akim Demaille <akim@epita.fr>
17586
17587 * tests/actions.at, tests/calc.at, tests/headers.at,
17588 * tests/torture.at: Adjust to the newest Autotest which no longer
17589 forces `.' in the PATH.
17590
17591 2002-01-25 Akim Demaille <akim@epita.fr>
17592
17593 * tests/regression.at (%nonassoc and eof): New.
17594 Suggested by Robert Anisko.
17595
17596 2002-01-24 Akim Demaille <akim@epita.fr>
17597
17598 Bison dumps core when trying to complain about broken input files.
17599 Reported by Cris van Pelt.
17600
17601 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
17602 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
17603 into...
17604 (Invalid inputs): Strengthen: exercise parse_percent_token.
17605
17606 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
17607
17608 * src/Makefile.am: Add bison.c++.
17609 * src/bison.c++: New skeleton.
17610
17611 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
17612
17613 * po/it.po: New.
17614
17615 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
17616
17617 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
17618
17619 2002-01-20 Marc Autret <marc@gnu.org>
17620
17621 * src/files.c (compute_output_file_names): Fix
17622
17623 2002-01-20 Marc Autret <marc@gnu.org>
17624
17625 * tests/output.at: New test.
17626 * src/files.c (compute_base_names): Don't map extensions when
17627 the YACC flag is set, use defaults.
17628 Reported by Evgeny Stambulchik.
17629
17630 2002-01-20 Marc Autret <marc@gnu.org>
17631
17632 * src/system.h: Need to define __attribute__ away for non-GCC
17633 compilers as well (i.e., the vendor C compiler).
17634 Suggested by Albert Chin-A-Young.
17635
17636 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
17637
17638 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
17639 canonical definition.
17640 * src/system.h: Use the canonical definition for PARAMS (avoids
17641 a conflict with the macro from lib/hash.h).
17642
17643 2002-01-11 Akim Demaille <akim@epita.fr>
17644
17645 * configure.in: Use AC_FUNC_STRNLEN.
17646 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
17647
17648 2002-01-09 Akim Demaille <akim@epita.fr>
17649
17650 * src/files.c, src/files.h (output_infix): New.
17651 (tab_extension): Remove.
17652 (compute_base_names): Compute the former, drop the latter.
17653 * src/output.c (prepare): Insert the muscles `output-infix', and
17654 `output-suffix'.
17655 * src/parse-skel.y (string, string.1): New.
17656 (section.header): Use it.
17657 (section.yacc): Remove.
17658 (prefix): Remove too.
17659 * src/scan-skel.l: Adjust.
17660 * src/bison.simple, src/bison.hairy: Adjust.
17661
17662 2002-01-09 Akim Demaille <akim@epita.fr>
17663
17664 * configure.in (WERROR_CFLAGS): Compute it.
17665 * src/Makefile.am (CFLAGS): Pass it.
17666 * tests/atlocal.in (CFLAGS): Idem.
17667 * src/files.c: Fix a few warnings.
17668 (get_extension_index): Remove, unused.
17669
17670 2002-01-08 Akim Demaille <akim@epita.fr>
17671
17672 * src/getargs.c (AS_FILE_NAME): New.
17673 (getargs): Use it to convert DOSish file names.
17674 * src/files.c (base_name): Rename as full_base_name to avoid
17675 clashes with `base_name ()'.
17676 (filename_split): New.
17677 (compute_base_names): N-th rewrite, using filename_split.
17678
17679 2002-01-08 Akim Demaille <akim@epita.fr>
17680
17681 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
17682 New, stolen from the Fileutils 4.1.
17683 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
17684 * configure.in: Check for the presence of memrchr, and of its
17685 prototype.
17686
17687 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
17688
17689 * lib/hash.h (__P): Added definition for this macro.
17690 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
17691 BUILT_SOURCES, to ensure they are generated first.
17692 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
17693 %error-verbose to allow bootstrapping with bison 1.30x.
17694
17695 2002-01-06 Akim Demaille <akim@epita.fr>
17696
17697 * src/reader.c (parse_braces): Don't fetch the next char, the
17698 convention is to fetch on entry.
17699 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
17700 'switch' without a following semicolon.
17701 * tests/regression.at (braces parsing): New.
17702
17703 2002-01-06 Akim Demaille <akim@epita.fr>
17704
17705 Bison is dead wrong in its RR conflict reports.
17706
17707 * tests/torture.at (GNU Cim Grammar): New.
17708 * src/conflicts.c (count_rr_conflicts): Fix.
17709
17710 2002-01-06 Akim Demaille <akim@epita.fr>
17711
17712 Creating package.m4 from configure.ac causes too many problems.
17713
17714 * tests/Makefile.am (package.m4): Create it by hand,
17715 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
17716
17717 2002-01-06 Akim Demaille <akim@epita.fr>
17718
17719 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
17720 skeleton.h.
17721
17722 2002-01-04 Paul Eggert <eggert@twinsun.com>
17723
17724 * doc/bison.texinfo (Debugging):
17725 Remove YYSTDERR; it's no longer defined or used.
17726 Also, s/cstdio.h/cstdio/.
17727
17728 2002-01-03 Akim Demaille <akim@epita.fr>
17729
17730 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
17731
17732 2002-01-03 Akim Demaille <akim@epita.fr>
17733
17734 * src/parse-skel.y (process_skeleton): Don't bind the parser's
17735 tracing code to --trace, wait for a better --trace option, with
17736 args.
17737
17738 2002-01-03 Akim Demaille <akim@epita.fr>
17739
17740 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
17741 The ISO C++ standard is extremely clear about it: stderr is
17742 considered a macro, not a regular symbol (see table 94 `Header
17743 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
17744 Therefore std:: does not apply to it. It still does with fprintf.
17745 Also, s/cstdio.h/cstdio/.
17746
17747 2002-01-03 Akim Demaille <akim@epita.fr>
17748
17749 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
17750 for non system headers.
17751
17752 2002-01-02 Akim Demaille <akim@epita.fr>
17753
17754 Equip the skeleton chain with location tracking, runtime trace,
17755 pure parser and scanner.
17756
17757 * src/parse-skel.y: Request a pure parser, locations, and prefix
17758 renaming.
17759 (%union): Having several members with the same type does not help
17760 type mismatches, simplify.
17761 (YYPRINT, yyprint): New.
17762 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
17763 (skel_error): this.
17764 Handle locations.
17765 * src/scan-skel.l: Adjust to these changes.
17766 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
17767 (LOCATION_PRINT, skel_control_t): New.
17768
17769 2001-12-30 Akim Demaille <akim@epita.fr>
17770
17771 * src/parse-skel.y: Get rid of the shift/reduce conflict:
17772 replace `gb' with BLANKS.
17773 * src/scan-skel.l: Adjust.
17774
17775 2001-12-30 Akim Demaille <akim@epita.fr>
17776
17777 * src/system.h: We don't need nor want bcopy.
17778 Throw away MS-DOS crap: we don't need getpid.
17779 * configure.in: We don't need strndup. It was even causing
17780 problems: because Flex includes the headers *before* us,
17781 _GNU_SOURCE is not defined by config.h, and therefore strndup was
17782 not visible.
17783 * lib/xstrndup.c: New.
17784 * src/scan-skel.l: Use it.
17785 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
17786 * src/parse-skel.y: Use %directives instead of #defines.
17787
17788 2001-12-30 Akim Demaille <akim@epita.fr>
17789
17790 * src/skeleton.h: New.
17791 * src/output.c (output_parser, output_master_parser): Remove, dead
17792 code.
17793 * src/output.h (get_lines_number, actions_output, guards_output)
17794 (token_definitions_output): Prototype them.
17795 * src/parse-skel.y: Add the license notice.
17796 Include output.h and skeleton.h.
17797 (process_skeleton): Returns void, and takes a single parameter.
17798 * src/scan-skel.l: Add the license notice.
17799 Include skeleton.h.
17800 Don't use %option yylineno: it seems that then Flex imagines
17801 REJECT has been used, and therefore it won't reallocate its
17802 buffers (which makes no other sense to me than a bug). It results
17803 in warnings for `unused: yy_flex_realloc'.
17804
17805 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
17806
17807 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17808 (MUSCLE_INSERT_PREFIX): ...to there.
17809 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17810 (MUSCLE_INSERT_PREFIX): Move from here...
17811
17812 * src/bison.hairy: Add a section directive. Put braces around muscle
17813 names. This parser skeleton is still broken, but Bison should not
17814 choke on a bad muscle 'syntax'.
17815 * src/bison.simple: Add a section directive. Put braces around muscle
17816 names.
17817
17818 * src/files.h (strsuffix, stringappend): Add declarations.
17819 (tab_extension): Add declaration.
17820 (short_base_name): Add declaration.
17821
17822 * src/files.c (strsuffix, stringappend): No longer static. These
17823 functions are used in the skeleton parser.
17824 (tab_extension): New.
17825 (compute_base_names): Use the computations done in this function
17826 to guess if the generated parsers should have '.tab' in their
17827 names.
17828 (short_base_name): No longer static.
17829
17830 * src/output.c (output_skeleton): New.
17831 (output): Disable call to output_master_parser, and give a try to
17832 a new skeleton handling system.
17833 (guards_output, actions_output): No longer static.
17834 (token_definitions_output, get_lines_number): No longer static.
17835
17836 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
17837
17838 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
17839 parse-skel.y.
17840
17841 * src/parse-skel.y: New file.
17842 * src/scan-skel.l: New file.
17843
17844 2001-12-29 Akim Demaille <akim@epita.fr>
17845
17846 %name-prefix is broken.
17847
17848 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
17849 Adjust all dependencies.
17850 * tests/headers.at (export YYLTYPE): Strengthen this test: use
17851 %name-prefix.
17852
17853 Renaming yylval but not yylloc is not consistent. Now we do.
17854
17855 * src/bison.simple: Prefix yylloc if used.
17856 * doc/bison.texinfo (Decl Summary): Document that.
17857
17858 2001-12-29 Akim Demaille <akim@epita.fr>
17859
17860 * doc/bison.texinfo: Promote `%long-directive' over
17861 `%long_directive'.
17862 Remove all references to fixed-output-files, yacc is enough.
17863
17864 2001-12-29 Akim Demaille <akim@epita.fr>
17865
17866 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
17867 user prologue. These are defaults.
17868 * tests/actions.at (Mid-rule actions): Make sure the user can
17869 define YYDEBUG and YYERROR_VERBOSE.
17870
17871 2001-12-29 Akim Demaille <akim@epita.fr>
17872
17873 * src/output.c (header_output): Don't forget to export YYLTYPE and
17874 yylloc.
17875 * tests/headers.at (export YYLTYPE): New, make sure it does.
17876 * tests/regression.at (%union and --defines, Invalid CPP headers):
17877 Move to...
17878 * tests/headers.at: here.
17879
17880 2001-12-29 Akim Demaille <akim@epita.fr>
17881
17882 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
17883
17884 2001-12-29 Akim Demaille <akim@epita.fr>
17885
17886 * tests/actions.at (Mid-rule actions): Output on a single line
17887 instead of several.
17888
17889 2001-12-29 Akim Demaille <akim@epita.fr>
17890
17891 * doc/bison.texinfo: Formatting changes.
17892
17893 2001-12-29 Akim Demaille <akim@epita.fr>
17894
17895 Don't store the token defs in a muscle, just be ready to output it
17896 on command. Now possible via `symbols'. Fixes a memory leak.
17897
17898 * src/output.c (token_definitions_output): New.
17899 (output_parser, header_output): Use it.
17900 * src/reader.c (symbols_save): Remove.
17901
17902 2001-12-29 Akim Demaille <akim@epita.fr>
17903
17904 * src/bison.simple: Do not provide a default for YYSTYPE and
17905 YYLTYPE before the user's prologue. Otherwise it's hardly... a
17906 default.
17907
17908 2001-12-29 Akim Demaille <akim@epita.fr>
17909
17910 Mid-rule actions are simply... ignored!
17911
17912 * src/reader.c (readgram): Be sure to attach mid-rule actions to
17913 the empty-rule associated to the dummy symbol, not to the host
17914 rule.
17915 * tests/actions.at (Mid-rule actions): New.
17916
17917 2001-12-29 Akim Demaille <akim@epita.fr>
17918
17919 Memory leak.
17920
17921 * src/reader.c (reader): Free grammar.
17922
17923 2001-12-29 Akim Demaille <akim@epita.fr>
17924
17925 Memory leak.
17926
17927 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
17928 since it allocates it for each state, although only one is needed.
17929 (allocate_storage): Do it here.
17930
17931 2001-12-29 Akim Demaille <akim@epita.fr>
17932
17933 * src/options.h, src/options.c (create_long_option_table): Rename
17934 as...
17935 (long_option_table_new): this, with a clearer prototype.
17936 (percent_table): Remove, unused,
17937 * src/getargs.c (getargs): Adjust.
17938
17939 2001-12-29 Akim Demaille <akim@epita.fr>
17940
17941 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
17942 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
17943 as states.
17944
17945 2001-12-29 Akim Demaille <akim@epita.fr>
17946
17947 * src/lalr.c (build_relations): Rename `states' as `states1'.
17948 Sorry, I don't understand exactly what it is, no better name...
17949
17950 2001-12-29 Akim Demaille <akim@epita.fr>
17951
17952 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
17953 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
17954 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
17955 as rules.
17956
17957 2001-12-29 Akim Demaille <akim@epita.fr>
17958
17959 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
17960 ago.
17961
17962 2001-12-29 Akim Demaille <akim@epita.fr>
17963
17964 * src/reader.c, src/reader.h (user_toknums): Remove.
17965 Adjust all users to use symbols[i]->user_token_number.
17966
17967 2001-12-29 Akim Demaille <akim@epita.fr>
17968
17969 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
17970 Adjust all users to use symbols[i]->prec or ->assoc.
17971
17972 2001-12-29 Akim Demaille <akim@epita.fr>
17973
17974 * src/reader.c, src/reader.h (tags): Remove.
17975 Adjust all users to use symbols[i]->tag.
17976
17977 2001-12-29 Akim Demaille <akim@epita.fr>
17978
17979 * src/gram.h, src/gram.c (symbols): New, similar to state_table
17980 and rule_table.
17981 * src/reader.c (packsymbols): Fill this table.
17982 Drop sprec.
17983 * src/conflicts.c (resolve_sr_conflict): Adjust.
17984 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
17985 single table.
17986 Use symbols[i]->tag instead of tags[i].
17987
17988 2001-12-29 Akim Demaille <akim@epita.fr>
17989
17990 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
17991 In addition, put a comment in there, to replace...
17992 * tests/regression.at (%union and C comments): Remove.
17993
17994 2001-12-29 Akim Demaille <akim@epita.fr>
17995
17996 * tests/regression.at (Web2c Actions): Blindly move the actual
17997 output as expected output. The contents *seem* right to me, but I
17998 can't pretend reading perfectly parser tables... Nonetheless, all
17999 the other tests pass correctly, the table look OK, even though the
18000 presence of `$axiom' is to be noted: AFAICS it is useless (but
18001 harmless).
18002
18003 2001-12-29 Akim Demaille <akim@epita.fr>
18004
18005 * src/reader.c (readgram): Don't add the rule 0 if there were no
18006 rules read. In other words, add it _after_ having performed
18007 grammar sanity checks.
18008 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
18009
18010 2001-12-29 Akim Demaille <akim@epita.fr>
18011
18012 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
18013 visible, and some states have now a different number.
18014
18015 2001-12-29 Akim Demaille <akim@epita.fr>
18016
18017 * src/reader.c (readgram): Bind the initial rule's lineno to that
18018 of the first rule.
18019 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
18020 (Solved SR Conflicts): Adjust rule 0's line number.
18021
18022 2001-12-29 Akim Demaille <akim@epita.fr>
18023
18024 Fix the `GAWK Grammar' failure.
18025
18026 * src/LR0.c (final_state): Initialize to -1 so that we do compute
18027 the reductions of the first state which was mistakenly confused
18028 with the final state because precisely final_state was initialized
18029 to 0.
18030 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
18031 now noticed by Bison.
18032 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
18033 have a reduction on $default.
18034
18035 2001-12-29 Akim Demaille <akim@epita.fr>
18036
18037 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
18038 rule line numbers.
18039 * src/closure.c (print_closure): Likewise.
18040 * src/derives.c (print_derives): Likewise.
18041 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
18042 now.
18043
18044 2001-12-29 Akim Demaille <akim@epita.fr>
18045
18046 * src/lalr.c (lookaheads_print): New.
18047 (lalr): Call it when --trace-flag.
18048 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
18049 are dumped.
18050
18051 2001-12-29 Akim Demaille <akim@epita.fr>
18052
18053 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
18054 when walking through ritem, even via rule->rhs.
18055 * src/reduce.c (dump_grammar, useful_production, reduce_output)
18056 (useful_production, useless_nonterminals): Likewise.
18057 (reduce_grammar_tables): Likewise, plus update nritems.
18058 * src/nullable.c (set_nullable): Likewise.
18059 * src/lalr.c (build_relations): Likewise.
18060 * tests/sets.at (Nullable): Adjust.
18061 Fortunately, now, the $axiom is no longer nullable.
18062
18063 2001-12-29 Akim Demaille <akim@epita.fr>
18064
18065 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
18066 the 0-sentinel.
18067 * src/gram.c (ritem_longest_rhs): Likewise.
18068 * src/reduce.c (nonterminals_reduce): Likewise.
18069 * src/print_graph.c (print_graph): Likewise.
18070 * src/output.c (output_rule_data): Likewise.
18071 * src/nullable.c (set_nullable): Likewise.
18072
18073 2001-12-29 Akim Demaille <akim@epita.fr>
18074
18075 * src/output.c: Comment changes.
18076
18077 2001-12-27 Paul Eggert <eggert@twinsun.com>
18078
18079 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
18080 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
18081 Sparc, as they were causing more porting problems than the
18082 (minor) performance improvement was worth.
18083
18084 Also, catch up with 1.31's YYSTD.
18085
18086 2001-12-27 Akim Demaille <akim@epita.fr>
18087
18088 * src/output.c (output_gram): Rely on nritems, not the
18089 0-sentinel. See below.
18090 Use -1 as separator, not 0.
18091 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
18092 Rely on -1 as separator in yyrhs, instead of 0.
18093 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
18094 twice `Now at end of input', therefore there are two lines less to
18095 expect.
18096
18097 2001-12-27 Akim Demaille <akim@epita.fr>
18098
18099 * tests/regression.at (Unresolved SR Conflicts):
18100 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
18101 below.
18102
18103 2001-12-27 Akim Demaille <akim@epita.fr>
18104
18105 * src/LR0.c (new_state): Recognize the final state by the fact it
18106 is reached by eoftoken.
18107 (insert_start_shifting_state, insert_eof_shifting_state)
18108 (insert_accepting_state, augment_automaton): Remove, since now
18109 these states are automatically computed from the initial state.
18110 (generate_states): Adjust.
18111 * src/print.c: When reporting a rule number to the user, substract
18112 1, so that the axiom rule is rule 0, and the first user rule is 1.
18113 * src/reduce.c: Likewise.
18114 * src/print_graph.c (print_core): For the time being, just as for
18115 the report, depend upon --trace-flags to dump the full set of
18116 items.
18117 * src/reader.c (readgram): Once the grammar read, insert the rule
18118 0: `$axiom: START-SYMBOL $'.
18119 * tests/set.at: Adjust: rule 0 is now displayed, and since the
18120 number of the states has changed (the final state is no longer
18121 necessarily the last), catch up.
18122
18123 2001-12-27 Akim Demaille <akim@epita.fr>
18124
18125 Try to make the use of the eoftoken valid. Given that its value
18126 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
18127 is used instead of > 0 where appropriate, (ii), depend upon nritems
18128 instead of the 0-sentinel.
18129
18130 * src/gram.h, src/gram.c (nritems): New.
18131 Expected to be duplication of nitems, but for the time being...
18132 * src/reader.c (packgram): Assert nritems and nitems are equal.
18133 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
18134 * src/closure.c (print_closure, print_fderives): Likewise.
18135 * src/gram.c (ritem_print): Likewise.
18136 * src/print.c (print_core, print_grammar): Likewise.
18137 * src/print_graph.c: Likewise.
18138
18139 2001-12-27 Akim Demaille <akim@epita.fr>
18140
18141 * src/main.c (main): If there are complains after grammar
18142 reductions, then output the report anyway if requested, then die.
18143 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
18144 * src/reader.c (eoftoken): New.
18145 (parse_token_decl): If the token being defined has value `0', it
18146 is the eoftoken.
18147 (packsymbols): No longer hack `tags' to insert `$' by hand.
18148 Be sure to preserve the value of the eoftoken.
18149 (reader): Make sure eoftoken is defined.
18150 Initialize nsyms to 0: now eoftoken is created just like the others.
18151 * src/print.c (print_grammar): Don't special case the eof token.
18152 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
18153 lie anyway, albeit pleasant.
18154 * tests/calc.at: Exercise error messages with eoftoken.
18155 Change the grammar so that empty input is invalid.
18156 Adjust expectations.
18157 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
18158
18159 2001-12-27 Akim Demaille <akim@epita.fr>
18160
18161 * configure.in: Check the protos of strchr ans strspn.
18162 Replace strchr if needed.
18163 * src/system.h: Provide the protos of strchr, strspn and memchr if
18164 missing.
18165 * lib/strchr.c: New.
18166 * src/reader.c (symbols_save): Use strchr.
18167
18168 2001-12-27 Akim Demaille <akim@epita.fr>
18169
18170 * src/print.c, src/print_graph.c (escape): New.
18171 Use it to quote the TAGS outputs.
18172 * src/print_graph.c (print_state): Now errors are in red, and
18173 reductions in green.
18174 Prefer high to wide: output the state number on a line of its own.
18175
18176 2001-12-27 Akim Demaille <akim@epita.fr>
18177
18178 * src/state.h, src/state.c (reductions_new): New.
18179 * src/LR0.c (set_state_table): Let all the states have a
18180 `reductions', even if reduced to 0.
18181 (save_reductions): Adjust.
18182 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
18183 * src/print.c (print_reductions, print_actions): Adjust.
18184 * src/output.c (action_row): Adjust.
18185
18186 2001-12-27 Akim Demaille <akim@epita.fr>
18187
18188 * src/state.h, src/state.c (errs_new, errs_dup): New.
18189 * src/LR0.c (set_state_table): Let all the states have an errs,
18190 even if reduced to 0.
18191 * src/print.c (print_errs, print_reductions): Adjust.
18192 * src/output.c (output_actions, action_row): Adjust.
18193 * src/conflicts.c (resolve_sr_conflict): Adjust.
18194
18195 2001-12-27 Akim Demaille <akim@epita.fr>
18196
18197 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
18198
18199 2001-12-27 Akim Demaille <akim@epita.fr>
18200
18201 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
18202 * src/print.c: here.
18203 (lookaheadset, shiftset): New, used as additional storage by
18204 print_reductions.
18205 (print_results): Adjust.
18206 (print_shifts, print_gotos, print_errs): New, extracted from...
18207 (print_actions): here.
18208 * src/print_graph.c (print_actions): Remove dead code.
18209
18210 2001-12-27 Akim Demaille <akim@epita.fr>
18211
18212 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
18213 `$n' and `@n'.
18214
18215 2001-12-27 Akim Demaille <akim@epita.fr>
18216
18217 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
18218 (build_relations): Adjust.
18219
18220 2001-12-27 Akim Demaille <akim@epita.fr>
18221
18222 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
18223 duplication.
18224
18225 2001-12-27 Akim Demaille <akim@epita.fr>
18226
18227 * src/reader.c (packgram): Catch nitems overflows.
18228
18229 2001-12-27 Akim Demaille <akim@epita.fr>
18230
18231 * src/files.c, src/files.h (guard_obstack): Remove.
18232 * src/output.c (output): Adjust.
18233 * src/reader.c (parse_braces): New, factoring...
18234 (copy_action, copy_guard): these two which are renamed as...
18235 (parse_action, parse_guard): these.
18236 As a voluntary consequence, using braces around guards is now
18237 mandatory.
18238
18239 2001-12-27 Akim Demaille <akim@epita.fr>
18240
18241 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
18242 * src/reader.c (symbol_list): `guard' and `guard_line' are new
18243 members.
18244 (symbol_list_new): Adjust.
18245 (copy_action): action_line is the first line, not the last.
18246 (copy_guard): Just as for actions, store the `action' only, not
18247 the switch/case/break flesh.
18248 Don't parse the user action that might follow the guard, let...
18249 (readgram): do it, i.e., now, there can be an action after a
18250 guard.
18251 In other words the guard is just explicitly optional.
18252 (packgram): Adjust.
18253 * src/output.c (guards_output): New.
18254 (output_parser): Call it when needed.
18255 (output): Also free the guard and attrs obstacks.
18256 * src/files.c, src/files.h (obstack_save): Remove.
18257 (output_files): Remove.
18258 As a result, if one needs the former `.act' file, using an
18259 appropriate skeleton which requires actions and guards is now
18260 required.
18261 * src/main.c (main): Adjust.
18262 * tests/semantic.at: New.
18263 * tests/regression.at: Use `input.y' as input file name.
18264 Avoid 8+3 problems by requiring input.c when the test needs the
18265 parser.
18266
18267 2001-12-27 Akim Demaille <akim@epita.fr>
18268
18269 * src/reader.c (symbol_list_new): Be sure to initialize all the
18270 fields.
18271
18272 2001-12-27 Akim Demaille <akim@epita.fr>
18273
18274 All the hacks using a final pseudo state are now useless.
18275
18276 * src/LR0.c (set_state_table): state_table holds exactly nstates.
18277 * src/lalr.c (nLA): New.
18278 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
18279 instead of lookaheadsp from the pseudo state (nstate + 1).
18280
18281 2001-12-27 Akim Demaille <akim@epita.fr>
18282
18283 * src/output.c (action_row, token_actions): Use a state_t instead
18284 of a integer, and nlookaheads instead of the following state's
18285 lookaheadsp.
18286
18287 2001-12-27 Akim Demaille <akim@epita.fr>
18288
18289 * src/conflicts.c (log_resolution, flush_shift)
18290 (resolve_sr_conflict, set_conflicts, solve_conflicts)
18291 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
18292 (conflicts_print, print_reductions): Use a state_t instead of an
18293 integer when referring to a state.
18294 As much as possible, depend upon nlookaheads, instead of the
18295 `lookaheadsp' member of the following state (since lookaheads of
18296 successive states are successive, the difference between state n + 1
18297 and n served as the number of lookaheads for state n).
18298 * src/lalr.c (add_lookback_edge): Likewise.
18299 * src/print.c (print_core, print_actions, print_state)
18300 (print_results): Likewise.
18301 * src/print_graph.c (print_core, print_actions, print_state)
18302 (print_graph): Likewise.
18303 * src/conflicts.h: Adjust.
18304
18305 2001-12-27 Akim Demaille <akim@epita.fr>
18306
18307 * src/bison.hairy: Formatting/comment changes.
18308 ANSIfy.
18309 Remove `register' indications.
18310 Add plenty of `static'.
18311
18312 2001-12-27 Akim Demaille <akim@epita.fr>
18313
18314 * src/output.c (prepare): Drop the muscle `ntbase' which
18315 duplicates ntokens.
18316 * src/bison.simple: Formatting/comment changes.
18317 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
18318 is an undocumented synonym.
18319
18320 2001-12-22 Akim Demaille <akim@epita.fr>
18321
18322 * src/output.c (output_table_data): Change the prototype to use
18323 `int' for array ranges: some invocations do pass an int, not a
18324 short.
18325 Reported by Wayne Green.
18326
18327 2001-12-22 Akim Demaille <akim@epita.fr>
18328
18329 Some actions of web2c.y are improperly triggered.
18330 Reported by Mike Castle.
18331
18332 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
18333 * tests/regression.at (Web2c): Rename as...
18334 (Web2c Report): this.
18335 (Web2c Actions): New.
18336
18337 2001-12-22 Akim Demaille <akim@epita.fr>
18338
18339 Reductions in web2c.y are improperly reported.
18340 Reported by Mike Castle.
18341
18342 * src/conflicts.c (print_reductions): Fix.
18343 * tests/regression.at (Web2c): New.
18344
18345 2001-12-18 Akim Demaille <akim@epita.fr>
18346
18347 Some host fail on `assert (!"foo")', which expands to
18348 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
18349 Reported by Nelson Beebee.
18350
18351 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
18352 `#define it_succeeded 0' and `assert (it_succeeded)'.
18353
18354 2001-12-17 Marc Autret <autret_m@epita.fr>
18355
18356 * src/bison.simple: Don't hard code the skeleton line and filename.
18357 * src/output.c (output_parser): Rename 'line' as 'output_line'.
18358 New line counter 'skeleton_line' (skeleton-line muscle).
18359
18360 2001-12-17 Paul Eggert <eggert@twinsun.com>
18361
18362 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
18363 YYDEBUG must be defined to a nonzero value.
18364
18365 * src/bison.simple (yytname): Do not assume that the user defines
18366 YYDEBUG to a properly parenthesized expression.
18367
18368 2001-12-17 Akim Demaille <akim@epita.fr>
18369
18370 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
18371 nlookaheads is a new member.
18372 Adjust all users.
18373 * src/lalr.h (nlookaheads): Remove this orphan declaration.
18374 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
18375 state.
18376
18377 2001-12-17 Akim Demaille <akim@epita.fr>
18378
18379 * src/files.h, src/files.c (open_files, close_files): Remove.
18380 * src/main.c (main): Don't open/close files, nor invoke lex_free,
18381 let...
18382 * src/reader.c (reader): Do it.
18383
18384 2001-12-17 Akim Demaille <akim@epita.fr>
18385
18386 * src/conflicts.c (print_reductions): Formatting changes.
18387
18388 2001-12-17 Akim Demaille <akim@epita.fr>
18389
18390 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
18391 (flush_reduce): New.
18392 (resolve_sr_conflict): Adjust.
18393
18394 2001-12-17 Akim Demaille <akim@epita.fr>
18395
18396 * src/output.c (output_obstack): Be static and rename as...
18397 (format_obstack): this, to avoid any confusion with files.c's
18398 output_obstack.
18399 * src/reader.h (muscle_obstack): Move to...
18400 * src/output.h: here, since it's defined in output.c.
18401
18402 2001-12-17 Akim Demaille <akim@epita.fr>
18403
18404 * src/output.c (action_row, save_column, default_goto)
18405 (sort_actions, matching_state, pack_vector): Better variable
18406 locality.
18407
18408 2001-12-17 Akim Demaille <akim@epita.fr>
18409
18410 * src/output.c: Various formatting changes.
18411
18412 2001-12-17 Akim Demaille <akim@epita.fr>
18413
18414 * src/files.c (output_files): Free the output_obstack.
18415 * src/main.c (main): Call print and print_graph conditionally.
18416 * src/print.c (print): Work unconditionally.
18417 * src/print_graph.c (print_graph): Work unconditionally.
18418 * src/conflicts.c (log_resolution): Output only if verbose_flag.
18419
18420 2001-12-16 Marc Autret <autret_m@epita.fr>
18421
18422 * src/output.c (actions_output): Fix. When we use %no-lines,
18423 there is one less line per action.
18424
18425 2001-12-16 Marc Autret <autret_m@epita.fr>
18426
18427 * src/bison.simple: Remove a useless #line directive.
18428 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
18429 * src/output.c (get_lines_number): New.
18430 (output_parser): Adjust, now takes care about the lines of a
18431 output muscles.
18432 Fix line numbering.
18433 (actions_output): Computes the number of lines taken by actions.
18434 (output_master_parser): Insert new skeleton which is the name of
18435 the output parser file name.
18436
18437 2001-12-15 Marc Autret <autret_m@epita.fr>
18438
18439 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
18440
18441 2001-12-15 Marc Autret <autret_m@epita.fr>
18442
18443 * src/output.c (output_gram): Keep track of the hairy one.
18444
18445 2001-12-15 Akim Demaille <akim@epita.fr>
18446
18447 Make `make distcheck' work.
18448
18449 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
18450 system.h which uses libgettext.h.
18451
18452 2001-12-15 Akim Demaille <akim@epita.fr>
18453
18454 * src/nullable.c (set_nullable): Useless rules must be skipped,
18455 otherwise, since we range over their symbols, we might look at a
18456 nonterminal which no longer ``exists'', i.e., it is not counted in
18457 `nvars', hence we overflow our arrays.
18458
18459 2001-12-15 Akim Demaille <akim@epita.fr>
18460
18461 The header can also be produced directly, without any obstack!
18462 Yahoo!
18463
18464 * src/files.c, src/files.h (defines_obstack): Remove.
18465 (compute_header_macro): Global.
18466 (defines_obstack_save): Remove.
18467 * src/reader.c (parse_union_decl): No longer output to
18468 defines_obstack: its content can be found in the `stype' muscle
18469 anyway.
18470 (output_token_translations): Merge into...
18471 (symbols_output): this.
18472 Rename as...
18473 (symbols_save): this.
18474 (reader): Adjust.
18475 * src/output.c (header_output): New.
18476 (output): Call it.
18477
18478 2001-12-15 Akim Demaille <akim@epita.fr>
18479
18480 * src/reader.c (parse_union_decl): Instead of handling two obstack
18481 simultaneously, use one to define the `stype' muscle, and use the
18482 value of the latter to fill defines_obstack.
18483 (copy_comment): Remove.
18484 (copy_comment2): Work for a single obstack.
18485 Rename as...
18486 (copy_comment): this.
18487
18488 2001-12-15 Akim Demaille <akim@epita.fr>
18489
18490 * src/lex.c, src/lex.h (xgetc): No longer static.
18491 * src/reader.c (parse_union_decl): Revamp.
18492
18493 2001-12-15 Akim Demaille <akim@epita.fr>
18494
18495 Still making progress in separating Bison into (i) input, (ii)
18496 process, (iii) output: now we can directly output the parser file
18497 without using table_obstack at all.
18498
18499 * src/files.c, src/files.h (table_obstack): Bye bye.
18500 (parser_file_name): New.
18501 * src/files.c (compute_output_file_names): Compute it.
18502 * src/output.c (actions_output, output_parser)
18503 (output_master_parser): To a file instead of an obstack.
18504
18505 2001-12-15 Akim Demaille <akim@epita.fr>
18506
18507 Attach actions to rules, instead of pre-outputting them to
18508 actions_obstack.
18509
18510 * src/gram.h (rule_t): action and action_line are new members.
18511 * src/reader.c (symbol_list): Likewise.
18512 (copy_action): Save the actions within the rule.
18513 (packgram): Save them in rule_table.
18514 * src/output.c (actions_output): New.
18515 (output_parser): Use it on `%%actions'.
18516 (output_rule_data): Don't free rule_table.
18517 (output): Do it.
18518 (prepare): Don't save the `action' muscle.
18519 * src/bison.simple: s/%%action/%%actions/.
18520
18521 2001-12-15 Akim Demaille <akim@epita.fr>
18522
18523 * src/reader.c (copy_action): When --yacc, don't append a `;'
18524 to the user action: let it fail if lacking.
18525 Suggested by Arnold Robbins and Tom Tromey.
18526
18527 2001-12-14 Akim Demaille <akim@epita.fr>
18528
18529 * src/lex.c (literalchar): Simply return the char you decoded, non
18530 longer mess around with obstacks and int pointers.
18531 Adjust all callers.
18532
18533 2001-12-14 Akim Demaille <akim@epita.fr>
18534
18535 * src/lex.c (literalchar): Don't escape the special characters,
18536 just decode them, and keep them as char (before, eol was output as
18537 the 2 char string `\n' etc.).
18538 * src/output.c (output_rule_data): Use quotearg to output the
18539 token strings.
18540
18541 2001-12-13 Paul Eggert <eggert@twinsun.com>
18542
18543 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
18544 Do not infringe on the global user namespace when using C++.
18545 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
18546 All uses of `fprintf' and `stderr' changed.
18547
18548 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
18549
18550 2001-12-13 Akim Demaille <akim@epita.fr>
18551
18552 The computation of nullable is broken: it doesn't handle empty
18553 RHS's properly.
18554
18555 * tests/torture.at (GNU AWK Grammar): New.
18556 * tests/sets.at (Nullable): New.
18557 * src/nullable.c (set_nullable): Instead of blindly looping over
18558 `ritems', loop over the rules, and then over their rhs's.
18559
18560 Work around Autotest bugs.
18561
18562 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
18563 frame, because Autotest understand lines starting with a `+' as
18564 traces from the shell. Then, they are not processed properly.
18565 Admittedly an Autotest bug, but we don't have time to wait for
18566 Autotest to catch up.
18567 * tests/regression.at (Broken Closure): Adjust to the new table
18568 frames.
18569 Move to...
18570 * tests/sets.at: here.
18571
18572 2001-12-13 Akim Demaille <akim@epita.fr>
18573
18574 * src/closure.c (closure): Use nrules instead of playing tricks
18575 with BITS_PER_WORD.
18576
18577 2001-12-13 Akim Demaille <akim@epita.fr>
18578
18579 * src/print.c (print_actions): Output the handling of `$' as the
18580 traces do: shifting the token EOF. Before EOF was treated as a
18581 nonterminal.
18582 * tests/regression.at: Adjust some tests.
18583 * src/print_graph.c (print_core): Complete the set of items via
18584 closure. The next-to-final and final states are still unsatisfying,
18585 but that's to be addressed elsewhere.
18586 No longer output the rule numbers, but do output the state number.
18587 A single loop for the shifts + gotos is enough, but picked a
18588 distinct color for each.
18589 (print_graph): Initialize and finalize closure.
18590
18591 2001-12-13 Akim Demaille <akim@epita.fr>
18592
18593 * src/reader.c (readgram): Remove dead code, an strip useless
18594 braces.
18595 (get_type): Remove, unused.
18596
18597 2001-12-12 Akim Demaille <akim@epita.fr>
18598
18599 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
18600 on that of lib/error.c.
18601
18602 2001-12-12 Akim Demaille <akim@epita.fr>
18603
18604 Some hosts don't like `/' in includes.
18605
18606 * src/system.h: Include libgettext.h without qualifying the path.
18607 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
18608 $(top_srcdir).
18609
18610 2001-12-11 Marc Autret <autret_m@epita.fr>
18611
18612 * src/output.c (output_parser): Remove useless muscle.
18613
18614 2001-12-11 Marc Autret <autret_m@epita.fr>
18615
18616 * src/bison.simple: Remove #line just before %%epilogue. It
18617 is now handled in ...
18618 * src/reader.c (read_additionnal_code): Add the output of a
18619 #line for the epilogue.
18620
18621 2001-12-10 Marc Autret <autret_m@epita.fr>
18622
18623 * src/reader.c (copy_definition): Re-use CPP-outed code which
18624 replace precedent remove.
18625 * src/bison.simple: Remove #line before %%prologue because
18626 %%input-line is wrong at this time.
18627
18628 2001-12-10 Marc Autret <autret_m@epita.fr>
18629
18630 * src/reader.c (symbols_output): Clean up.
18631 * src/output.c (output_gram, output): Clean up.
18632
18633 2001-12-10 Akim Demaille <akim@epita.fr>
18634
18635 * src/lalr.c (initialize_lookaheads): New. Extracted from...
18636 * src/LR0.c (set_state_table): here.
18637 * src/lalr.c (lalr): Call it.
18638
18639 2001-12-10 Akim Demaille <akim@epita.fr>
18640
18641 * src/state.h (shifts): Remove the `number' member: shifts are
18642 attached to state, hence no longer need to be labelled with a
18643 state number.
18644
18645 2001-12-10 Akim Demaille <akim@epita.fr>
18646
18647 Now that states have a complete set of members, the linked list of
18648 shifts is useless: just fill directly the state's shifts member.
18649
18650 * src/state.h (shifts): Remove the `next' member.
18651 * src/LR0.c (first_state, last_state): Remove.
18652 Adjust the callers.
18653 (augment_automaton): Don't look for the shifts that must be added
18654 a shift on EOF: it is those of the state we looked for! But now,
18655 since shifts are attached, it is no longer needed to looking
18656 merely by its id: its number.
18657
18658 2001-12-10 Akim Demaille <akim@epita.fr>
18659
18660 * src/LR0.c (augment_automaton): Better variable locality.
18661 Remove an impossible branch: if there is a state corresponding to
18662 the start symbol being shifted, then there is shift for the start
18663 symbol from the initial state.
18664
18665 2001-12-10 Akim Demaille <akim@epita.fr>
18666
18667 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
18668 only when appropriate: when insert_start_shifting_state' is not
18669 invoked.
18670 * tests/regression.at (Rule Line Numbers): Adjust.
18671
18672 2001-12-10 Akim Demaille <akim@epita.fr>
18673
18674 * src/LR0.c (augment_automaton): Now that all states have shifts,
18675 merge the two cases addition shifts to the initial state.
18676
18677 2001-12-10 Akim Demaille <akim@epita.fr>
18678
18679 * src/lalr.c (set_state_table): Move to...
18680 * src/LR0.c: here.
18681 * src/lalr.c (lalr): Don't call it...
18682 * src/LR0.c (generate_states): do it.
18683 * src/LR0.h (first_state): Remove, only the table is used.
18684
18685 2001-12-10 Akim Demaille <akim@epita.fr>
18686
18687 * src/LR0.h (first_shift, first_reduction): Remove.
18688 * src/lalr.c: Don't use first_shift: find shifts through the
18689 states.
18690
18691 2001-12-10 Akim Demaille <akim@epita.fr>
18692
18693 * src/LR0.c: Attach shifts to states as soon as they are
18694 computed.
18695 * src/lalr.c (set_state_table): Instead of assigning shifts to
18696 state, just assert that the mapping was properly done.
18697
18698 2001-12-10 Akim Demaille <akim@epita.fr>
18699
18700 * src/LR0.c (insert_start_shift): Rename as...
18701 (insert_start_shifting_state): this.
18702 (insert_eof_shifting_state, insert_accepting_state): New.
18703 (augment_automaton): Adjust.
18704 Better locality of the variables.
18705 When looking if the start_symbol is shifted from the initial
18706 state, using `while (... symbol != start_symbol ...)' sounds
18707 better than `while (... symbol < start_symbol ...)': If fail
18708 to see how the order between symbols could be relevant!
18709
18710 2001-12-10 Akim Demaille <akim@epita.fr>
18711
18712 * src/getargs.h: Don't declare `spec_name_prefix' and
18713 `spec_file_prefix', declared by src/files.h.
18714 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
18715 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
18716 * src/output.c (prepare): Adjust.
18717 * src/reader.c (symbols_output): Likewise.
18718 * src/vmsgetargs.c: Vaguely adjust, but who cares?
18719
18720 2001-12-10 Akim Demaille <akim@epita.fr>
18721
18722 * src/muscle_tab.c (muscle_init): NULL is a better default than
18723 `"0"'.
18724
18725 2001-12-10 Akim Demaille <akim@epita.fr>
18726
18727 * src/reader.c (reader): Calling symbols_output once is enough.
18728
18729 2001-12-10 Akim Demaille <akim@epita.fr>
18730
18731 Now that states have a complete set of members, the linked list of
18732 reductions is useless: just fill directly the state's reductions
18733 member.
18734
18735 * src/state.h (struct reductions): Remove member `number' and
18736 `next'.
18737 * src/LR0.c (first_reduction, last_reduction): Remove.
18738 (save_reductions): Don't link the new reductions, store them in
18739 this_state.
18740 * src/lalr.c (set_state_table): No need to attach reductions to
18741 states, it's already done.
18742 * src/output.c (output_actions): No longer free the shifts, then
18743 the reductions, then the states: free all the states and their
18744 members.
18745
18746 2001-12-10 Akim Demaille <akim@epita.fr>
18747
18748 * src/options.c (OPTN, DRTV, BOTH): New.
18749 (option_table): Use them.
18750
18751 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
18752 the job of system.h.
18753 * src/options.c: Don't include stdio.h and xalloc.h for the same
18754 reasons.
18755
18756 2001-12-10 Akim Demaille <akim@epita.fr>
18757
18758 * src/output.c (output, prepare): Make sure the values of the
18759 muscles `action' and `prologue' are 0-terminated.
18760
18761 2001-12-10 Akim Demaille <akim@epita.fr>
18762
18763 Clean up GCC warnings.
18764
18765 * src/reader.c (copy_action): `buf' is not used.
18766 (parse_skel_decl): Be static.
18767 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
18768 * src/options.h (create_long_option_table): Have a real prototype.
18769 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
18770 (hash_delete_at): Return const void *.
18771 Adjust casts to preserve the const.
18772
18773 2001-12-10 Akim Demaille <akim@epita.fr>
18774
18775 * configure.in: Require 2.52g.
18776 M4 is not needed, but AUTOM4TE is.
18777 * m4/m4.m4: Remove.
18778 * tests/Makefile.am: Adjust.
18779
18780 2001-12-10 Akim Demaille <akim@epita.fr>
18781
18782 One structure for states is enough, even though theoretically
18783 there are LR(0) states and LALR(1) states.
18784
18785 * src/lalr.h (state_t): Remove.
18786 (state_table): Be state_t **, not state_t *.
18787 * src/state.h (core, CORE_ALLOC): Rename as...
18788 (state_t, STATE_ALLOC): this.
18789 Add the LALR(1) members: shifts, reductions, errs.
18790 * src/LR0.c (state_table): Rename as...
18791 (state_hash): this, to avoid name clashes with the global
18792 `state_table'.
18793 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
18794 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
18795
18796 2001-12-10 Akim Demaille <akim@epita.fr>
18797
18798 Bison dumps core on bash.y.
18799 Reported by Pascal Bart.
18800
18801 * src/warshall.c (bitmatrix_print): New.
18802 (TC): Use it.
18803 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
18804 j must be the outer loop.
18805 * tests/regression.at (Broken Closure): New.
18806
18807 2001-12-05 Akim Demaille <akim@epita.fr>
18808
18809 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
18810 its argument.
18811 Reported by Peter Hamorsky.
18812
18813 2001-12-05 Akim Demaille <akim@epita.fr>
18814
18815 * src/conflicts.c (err_table): Remove.
18816 (resolve_sr_conflict): Adjust.
18817 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
18818 Rename as...
18819 (state_t.reductions, state_t.shifts): this.
18820
18821 2001-12-05 Akim Demaille <akim@epita.fr>
18822
18823 * src/reduce.c (reduce_grammar_tables): No longer disable the
18824 removal of useless rules via CPP but via `if (0)', so that the
18825 compiler still check the code is valid.
18826 For instance, it should have noticed `rline' no longer exists: use
18827 the `line' member of rule_t.
18828 * src/gram.c (dummy, rline): Remove, unused.
18829
18830 2001-12-05 Akim Demaille <akim@epita.fr>
18831
18832 * src/output.c (pack_vector): Use assert, not berror.
18833 * src/main.c (berror): Remove, unused.
18834
18835 2001-12-05 Akim Demaille <akim@epita.fr>
18836
18837 New experimental feature: if --verbose --trace output all the
18838 items of a state, not only its kernel.
18839
18840 * src/print.c (print_core): If `trace_flag', then invoke closure
18841 before outputting the items of the state (print_core is no longer
18842 a correct name them).
18843 (print_results): Invoke new_closure/free_closure if needed.
18844
18845 2001-12-05 Akim Demaille <akim@epita.fr>
18846
18847 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
18848 * src/closure.c, src/closure.h (itemsetsize): Rename as...
18849 (nitemset): for consistency with the rest of the project.
18850
18851 2001-12-05 Akim Demaille <akim@epita.fr>
18852
18853 * src/closure.c (print_closure): Improve.
18854 (closure): Use it for printing input and output.
18855
18856 2001-12-05 Akim Demaille <akim@epita.fr>
18857
18858 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
18859 indexed by nonterminals.
18860
18861 2001-12-05 Akim Demaille <akim@epita.fr>
18862
18863 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
18864 what it was!).
18865 * src/warshall.h: Remove accidental duplication of the content.
18866
18867 2001-12-05 Akim Demaille <akim@epita.fr>
18868
18869 * src/closure.c (set_fderives): De-obfuscate.
18870
18871 2001-12-05 Akim Demaille <akim@epita.fr>
18872
18873 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
18874
18875 2001-12-05 Akim Demaille <akim@epita.fr>
18876
18877 * src/closure.c (set_firsts): De-obfuscate.
18878
18879 2001-12-05 Akim Demaille <akim@epita.fr>
18880
18881 * src/output.c (action_row): De-obfuscate
18882 using the good o' techniques: arrays not pointers, variable
18883 locality, BITISSET, RESETBIT etc.
18884
18885 2001-12-05 Akim Demaille <akim@epita.fr>
18886
18887 Pessimize the code to simplify it: from now on, all the states
18888 have a valid SHIFTS, which NSHIFTS is possibly 0.
18889
18890 * src/LR0.c (shifts_new): Be global and move to..
18891 * src/state.c, src/state.h: here.
18892 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
18893 * src/print_graph: Adjust.
18894
18895 2001-12-05 Akim Demaille <akim@epita.fr>
18896
18897 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
18898 * src/conflicts.c: Use it.
18899 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
18900 incorrectly ``simplified''.
18901
18902 2001-12-05 Akim Demaille <akim@epita.fr>
18903
18904 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
18905 using the good o' techniques: arrays not pointers, variable
18906 locality, BITISSET, RESETBIT etc.
18907
18908 2001-12-05 Akim Demaille <akim@epita.fr>
18909
18910 * src/state.h (SHIFT_SYMBOL): New.
18911 * src/conflicts.c: Use it to deobfuscate.
18912
18913 2001-12-05 Akim Demaille <akim@epita.fr>
18914
18915 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
18916 (print_reductions): De-obfuscate using the good o' techniques:
18917 arrays not pointers, variable locality, BITISSET.
18918
18919 2001-12-05 Akim Demaille <akim@epita.fr>
18920
18921 * src/conflicts.c (print_reductions): Arrays, not pointers.
18922 Use BITISSET.
18923
18924 2001-12-05 Akim Demaille <akim@epita.fr>
18925
18926 * src/conflicts.c (print_reductions): Pessimize, but clarify.
18927
18928 2001-12-05 Akim Demaille <akim@epita.fr>
18929
18930 * src/conflicts.c (print_reductions): Improve variable locality.
18931
18932 2001-12-05 Akim Demaille <akim@epita.fr>
18933
18934 * src/conflicts.c (print_reductions): Pessimize, but clarify.
18935
18936 2001-12-05 Akim Demaille <akim@epita.fr>
18937
18938 * src/conflicts.c (print_reductions): Improve variable locality.
18939
18940 2001-12-05 Akim Demaille <akim@epita.fr>
18941
18942 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
18943 * src/lalr.c: Use them.
18944
18945 2001-12-05 Akim Demaille <akim@epita.fr>
18946
18947 * src/LR0.c (augment_automaton): Formatting changes.
18948 Better variable locality.
18949
18950 2001-12-05 Akim Demaille <akim@epita.fr>
18951
18952 * src/lalr.c (matrix_print): New.
18953 (transpose): Use it.
18954 Use arrays instead of pointers.
18955
18956 2001-12-05 Akim Demaille <akim@epita.fr>
18957
18958 * src/lalr.c (maxrhs): Move to...
18959 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
18960 * src/lalr.c (build_relations): Adjust.
18961
18962 2001-12-05 Akim Demaille <akim@epita.fr>
18963
18964 * src/lalr.c (transpose): Free the memory allocated to the
18965 argument, as it is replaced by the results by the unique caller.
18966 (build_relations): Merely invoke transpose: it handles the memory
18967 deallocation.
18968 Improve variable locality.
18969 Avoid variables used as mere abbreviations.
18970 (compute_lookaheads): Use arrays instead of pointers.
18971
18972 2001-12-05 Akim Demaille <akim@epita.fr>
18973
18974 * src/lalr.c (initialize_F): Improve variable locality.
18975 Avoid variables used as mere abbreviations.
18976
18977 2001-12-05 Akim Demaille <akim@epita.fr>
18978
18979 * src/derives.c (print_derives): Display the ruleno.
18980 * src/lalr.c (initialize_F, transpose): Better variable locality
18981 to improve readability.
18982 Avoid variables used as mere abbreviations.
18983
18984 2001-12-05 Akim Demaille <akim@epita.fr>
18985
18986 * src/lalr.c (traverse): Use arrays instead of pointers.
18987
18988 2001-12-05 Akim Demaille <akim@epita.fr>
18989
18990 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
18991 the handling of squeue.
18992 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
18993
18994 2001-12-05 Akim Demaille <akim@epita.fr>
18995
18996 Because useless nonterminals are now kept alive (instead of being
18997 `destroyed'), we now sometimes examine them, and store information
18998 related to them. Hence we need to know their number, and adjust
18999 memory allocations.
19000
19001 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
19002 static.
19003 * src/LR0.c (allocate_itemsets): The memory allocated to
19004 `symbol_count' was used for two different purpose: once to count
19005 the number of occurrences of each symbol, and later reassigned to
19006 `shift_symbol', containing the symbol that can be shifted from a
19007 given state.
19008 Deobfuscate, i.e., allocate, use and free `symbol_count' here
19009 only, and...
19010 (new_itemsets): Allocate `shift_symbol' here.
19011 (allocate_itemsets): symbol_count includes useless nonterminals.
19012 Make room for them.
19013 (free_storage): Use `free', not `XFREE', for pointers that cannot
19014 be null.
19015
19016 2001-12-05 Akim Demaille <akim@epita.fr>
19017
19018 * src/nullable.c (set_nullable): Deobfuscate the handling of
19019 ritem.
19020 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
19021
19022 2001-12-05 Akim Demaille <akim@epita.fr>
19023
19024 * src/gram.c, src/gram.h (ritem_print): New.
19025 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
19026 (This useless function was defined only to work around VMS linkers
19027 that can't handle compilation units with variables only).
19028 * src/reduce.c (dump_grammar): Use it to trace the construction of
19029 ritem.
19030
19031 2001-12-04 Paul Eggert <eggert@twinsun.com>
19032
19033 * src/bison.simple (union yyalloc): Change member names
19034 to be the same as the stack names.
19035 (yyparse): yyptr is now union yyalloc *, not char *.
19036 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
19037 and may generate better code on some machines.
19038 (yystpcpy): Use prototype if __STDC__ is defined, not just
19039 if __cplusplus is defined.
19040
19041 2001-11-30 Akim Demaille <akim@epita.fr>
19042
19043 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
19044 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
19045 Gettext doesn't compile cleanly, and dies with -Werror.
19046 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
19047 Include WARNING_CFLAGS here.
19048 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
19049 before being defined.
19050
19051 2001-11-27 Paul Eggert <eggert@twinsun.com>
19052
19053 * lib/quotearg.h (quotearg_n, quotearg_n_style):
19054 First arg is int, not unsigned.
19055 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
19056 (SIZE_MAX, UINT_MAX): New macros.
19057 (quotearg_n_options): Abort if N is negative.
19058 Avoid overflow check on hosts where size_t is 64 bits and int
19059 is 32 bits, as overflow is impossible there.
19060 Fix off-by-one typo that caused unnecessary reallocation.
19061
19062 2001-11-29 Paul Eggert <eggert@twinsun.com>
19063
19064 Name space cleanup in generated parser.
19065
19066 * doc/bison.texinfo (Bison Parser): Discuss system headers
19067 and their effect on the user name space.
19068
19069 * src/bison.simple:
19070 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
19071 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
19072 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
19073
19074 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
19075 on user names when possible.
19076
19077 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
19078 Simplify test for whather <alloca.h> exists.
19079
19080 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
19081
19082 (<stdio.h>): Include if YYDEBUG.
19083
19084 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
19085 ! defined (yyoverflow) && ! defined (yymemcpy).
19086
19087 (yymemcpy, yyparse): Rename local variables as needed so that
19088 they all begin with 'yy'.
19089
19090 (yystrlen, yystpcpy): New functions.
19091
19092 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
19093 All uses changed.
19094
19095 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
19096 instead of relying on string.h functions. Use YYSTACK_ALLOC
19097 and YYSTACK_FREE instead of malloc and free.
19098
19099 2001-11-30 Akim Demaille <akim@epita.fr>
19100
19101 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
19102 before their first uses.
19103 (YYBISON, YYPURE): Move to the top of the output.
19104
19105 2001-11-30 Akim Demaille <akim@epita.fr>
19106
19107 * tests/reduce.at (Useless Nonterminals): Fix.
19108
19109 2001-11-30 Akim Demaille <akim@epita.fr>
19110
19111 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
19112 if body instead of `;' to pacify GCC's warnings.
19113
19114 2001-11-30 Akim Demaille <akim@epita.fr>
19115
19116 Instead of mapping the LHS of unused rules to -1, keep the LHS
19117 valid, but flag the rules as invalid.
19118
19119 * src/gram.h (rule_t): `useful' is a new member.
19120 * src/print.c (print_grammar): Adjust.
19121 * src/derives.c (set_derives): Likewise.
19122 * src/reader.c (packgram, reduce_output): Likewise.
19123 * src/reduce.c (reduce_grammar_tables): Likewise.
19124 * tests/reduce.at (Underivable Rules, Useless Rules): New.
19125
19126 2001-11-30 Akim Demaille <akim@epita.fr>
19127
19128 * src/reduce.c (reduce_output): Formatting changes.
19129 * src/print.c (print_results, print_grammar): Likewise.
19130 * tests/regression.at (Rule Line Numbers)
19131 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
19132
19133 2001-11-30 Akim Demaille <akim@epita.fr>
19134
19135 * src/reduce.c (nonterminals_reduce): Instead of throwing away
19136 useless nonterminals, move them at the end of the symbol arrays.
19137 (reduce_output): Adjust.
19138 * tests/reduce.at (Useless Nonterminals): Adjust.
19139
19140 2001-11-30 Akim Demaille <akim@epita.fr>
19141
19142 * src/reduce.c: Various comment/formatting changes.
19143 (nonterminals_reduce): New, extracted from...
19144 (reduce_grammar_tables): here.
19145 (reduce_grammar): Call nonterminals_reduce.
19146
19147 2001-11-29 Paul Eggert <eggert@twinsun.com>
19148
19149 * src/bison.simple (YYSTACK_REALLOC): Remove.
19150 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
19151 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
19152 New macros.
19153 (union yyalloc): New type.
19154 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
19155 an arbitrary restriction on hosts where size_t is wider than int.
19156
19157 (yyparse): Don't dump core if alloca or malloc fails; instead, report
19158 a parser stack overflow. Allocate just one block of memory for all
19159 three stacks, instead of allocating three blocks; this typically is
19160 faster and reduces fragmentation.
19161
19162 Do not limit the number of items in the stack to a value that fits
19163 in 'int', as this is an arbitrary limit on hosts with 64-bit
19164 size_t and 32-bit int.
19165
19166 2001-11-29 Marc Autret <autret_m@epita.fr>
19167
19168 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
19169 of defining YYERROR_VERBOSE.
19170 [AT_DATA]: $4 is now out of C declarations in the prologue.
19171
19172 2001-11-28 Marc Autret <autret_m@epita.fr>
19173
19174 * src/reader.c (parse_dquoted_param): New.
19175 (parse_skel_decl): Use it.
19176 * src/lex.h: Add its prototype.
19177 * src/lex.c (literalchar): Become not static.
19178
19179 2001-11-28 Marc Autret <autret_m@epita.fr>
19180
19181 * src/output.h: And put its extern declaration here.
19182 * src/output.c (error_verbose): Define here.
19183 (prepare): Echo name modification.
19184 * src/getargs.h: Clean its extern declaration.
19185 * src/getargs.c (error_verbose_flag): Remove.
19186 (getargs): Remove case 'e'.
19187 * src/options.c (option_table): 'error-verbose' is now seen as simple
19188 percent option.
19189 Include output.h.
19190
19191 * src/reader.c (read_declarations): Remove case tok_include.
19192 (parse_include_decl): Remove.
19193 * src/lex.h (token_t): Remove tok_include.
19194 * src/options.c (option_table): 'include' is now a simple command line
19195 option.
19196
19197 2001-11-28 Marc Autret <autret_m@epita.fr>
19198
19199 * src/bison.simple: Adjust muscle names.
19200 * src/muscle_tab.c (muscle_init): Also rename the muscles.
19201 * src/output.c (prepare): s/_/-/ for the muscles names.
19202 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
19203
19204 2001-11-28 Marc Autret <autret_m@epita.fr>
19205
19206 * src/bison.simple: Fix debug.
19207 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
19208
19209 2001-11-28 Akim Demaille <akim@epita.fr>
19210
19211 * src/LR0.c (shifts_new): New.
19212 (save_shifts, insert_start_shift, augment_automaton): Use it.
19213
19214 2001-11-28 Akim Demaille <akim@epita.fr>
19215
19216 * src/closure.c (closure): `b' and `ruleno' denote the same value:
19217 keep ruleno only.
19218
19219 2001-11-28 Akim Demaille <akim@epita.fr>
19220
19221 * src/closure.c (closure): Instead of looping over word in array
19222 then bits in words, loop over bits in array.
19223
19224 2001-11-28 Akim Demaille <akim@epita.fr>
19225
19226 * src/closure.c (closure): No longer optimize the special case
19227 where all the bits of `ruleset[r]' are set to 0, to make the code
19228 clearer.
19229
19230 2001-11-28 Akim Demaille <akim@epita.fr>
19231
19232 * src/closure.c (closure): `r' and `c' are new variables, used to
19233 de-obfuscate accesses to RULESET and CORE.
19234
19235 2001-11-28 Akim Demaille <akim@epita.fr>
19236
19237 * src/reduce.c (reduce_print): Use ngettext.
19238 (dump_grammar): Improve the trace accuracy.
19239
19240 2001-11-28 Akim Demaille <akim@epita.fr>
19241
19242 * src/reduce.c (dump_grammar): Don't translate trace messages.
19243
19244 2001-11-28 Akim Demaille <akim@epita.fr>
19245
19246 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
19247 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
19248 as all tags are free'ed afterwards.
19249 From Enrico Scholz.
19250
19251 2001-11-27 Paul Eggert <eggert@twinsun.com>
19252
19253 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
19254 use alloca when we didn't want to, and vice versa.
19255
19256 2001-11-27 Marc Autret <autret_m@epita.fr>
19257
19258 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
19259 initialization.
19260 * src/output.c (prepare): Remove its update.
19261
19262 2001-11-27 Marc Autret <autret_m@epita.fr>
19263
19264 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
19265 Use %error-verbose.
19266
19267 2001-11-27 Marc Autret <autret_m@epita.fr>
19268
19269 * src/bison.simple: Remove YYERROR_VERBOSE using.
19270 Use %%error_verbose.
19271 (yyparse): Likewise.
19272 * src/output.c (prepare): Give its final value.
19273 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
19274 * src/getargs.h: Add its extern declaration.
19275 * src/getargs.c (error_verbose_flag): New int.
19276 (getargs): Update to catch new case.
19277 * src/options.c (option_table): 'error-verbose' is a new option.
19278 (shortopts): Update.
19279
19280 2001-11-27 Akim Demaille <akim@epita.fr>
19281
19282 * src/system.h: Use intl/libgettext.h.
19283 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
19284
19285 2001-11-27 Akim Demaille <akim@epita.fr>
19286
19287 * tests/torture.at (Exploding the Stack Size with Malloc):
19288 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
19289
19290 2001-11-27 Akim Demaille <akim@epita.fr>
19291
19292 * src/files.c: Include error.h.
19293 Reported by Hans Aberg.
19294
19295 2001-11-26 Marc Autret <autret_m@epita.fr>
19296
19297 * src/reader.c (parse_include_decl): New, not yet implemented.
19298 (read_declarations): Add case tok_include.
19299 * src/getargs.h (include): Add its extern definition.
19300 * src/getargs.c (include): New const char *.
19301 (getargs): Add case '-I'.
19302 * src/options.c (option_table): Add include as command line and
19303 percent option.
19304 * src/lex.h (token_t): Add tok_include.
19305
19306 2001-11-26 Akim Demaille <akim@epita.fr>
19307
19308 * src/reader.c (readgram): Make sure rules for mid-rule actions
19309 have a lineno equal to that of their host rule.
19310 Reported by Hans Aberg.
19311 * tests/regression.at (Rule Line Numbers): New.
19312
19313 2001-11-26 Akim Demaille <akim@epita.fr>
19314
19315 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
19316 size_ts.
19317
19318 2001-11-26 Akim Demaille <akim@epita.fr>
19319
19320 * src/complain.c, src/complain.h (error): Remove, provided by
19321 lib/error.[ch].
19322
19323 2001-11-26 Akim Demaille <akim@epita.fr>
19324
19325 * src/reader.c (read_declarations): Don't abort on tok_illegal,
19326 issue an error message.
19327 * tests/regression.at (Invalid %directive): New.
19328 Reported by Hans Aberg.
19329
19330 2001-11-26 Akim Demaille <akim@epita.fr>
19331
19332 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
19333 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
19334
19335 2001-11-26 Akim Demaille <akim@epita.fr>
19336
19337 * src/conflicts.c (conflicts_print): Don't complain at all when
19338 there are no reduce/reduce conflicts, and as many shift/reduce
19339 conflicts as expected.
19340 * tests/regression.at (%expect right): Adjust.
19341
19342 2001-11-23 Akim Demaille <akim@epita.fr>
19343
19344 * lib/alloca.c: Update, from fileutils.
19345
19346 2001-11-23 Akim Demaille <akim@epita.fr>
19347
19348 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
19349
19350 2001-11-23 Akim Demaille <akim@epita.fr>
19351
19352 * src/system.h: Include alloca.h.
19353 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
19354
19355 2001-11-23 Akim Demaille <akim@epita.fr>
19356
19357 * src/print_graph.c (print_actions): Remove `rule', unused.
19358 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
19359 pacify GCC's signed < unsigned warnings.
19360 * src/closure.c (itemsetsize): Likewise.
19361 * src/reader.c (symbol_list_new): Static.
19362
19363 2001-11-23 Akim Demaille <akim@epita.fr>
19364
19365 Attaching lineno to buckets is stupid, since only one copy of each
19366 symbol is kept, only the line of the first occurrence is kept too.
19367
19368 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
19369 * src/reader.c (rline_allocated): Remove, unused.
19370 (symbol_list): Have a `line' member.
19371 (symbol_list_new): New.
19372 (readgram): Use it.
19373 * src/print.c (print_grammar): Output the rule line numbers.
19374 * tests/regression.at (Solved SR Conflicts)
19375 (Unresolved SR Conflicts): Adjust.
19376 Reported by Hans Aberg.
19377
19378 2001-11-22 Marc Autret <autret_m@epita.fr>
19379
19380 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
19381
19382 2001-11-22 Marc Autret <autret_m@epita.fr>
19383
19384 * src/muscle_tab.c (muscle_init): Remove initialization of
19385 skeleton muscle.
19386 * src/output.c (output_master_parser): Do it here.
19387
19388 2001-11-20 Akim Demaille <akim@epita.fr>
19389
19390 * po/sv.po: New.
19391 * configure.in (ALL_LINGUAS): Adjust.
19392 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
19393 longer contains strings to translate.
19394
19395 2001-11-19 Akim Demaille <akim@epita.fr>
19396
19397 * src/conflicts.c (conflicts_print): Add a missing \n.
19398
19399 2001-11-19 Akim Demaille <akim@epita.fr>
19400
19401 * src/nullable.c (nullable_print): New.
19402 (set_nullable): Call it when tracing.
19403 Better locality of variables.
19404
19405 2001-11-19 Akim Demaille <akim@epita.fr>
19406
19407 * src/print.c (print_actions): Better locality of variables.
19408
19409 2001-11-19 Akim Demaille <akim@epita.fr>
19410
19411 * src/derives.c (print_derives): Fix and enrich.
19412 * src/closure.c (print_fderives): Likewise.
19413
19414 2001-11-19 Akim Demaille <akim@epita.fr>
19415
19416 * src/closure.c (itemsetend): Remove, replaced with...
19417 (itemsetsize): new.
19418
19419 2001-11-19 Akim Demaille <akim@epita.fr>
19420
19421 * src/LR0.c (kernel_end): Remove, replaced with...
19422 (kernel_size): new.
19423
19424 2001-11-19 Akim Demaille <akim@epita.fr>
19425
19426 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
19427 to clarify.
19428
19429 2001-11-19 Akim Demaille <akim@epita.fr>
19430
19431 * src/closure.c (closure): Use arrays instead of pointers to clarify.
19432
19433 2001-11-19 Akim Demaille <akim@epita.fr>
19434
19435 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
19436 trace messages.
19437 * src/LR0.c: Likewise.
19438 (allocate_itemsets): Use arrays instead of pointers to clarify.
19439
19440 2001-11-19 Akim Demaille <akim@epita.fr>
19441
19442 * src/getargs.c (statistics_flag): Replace with...
19443 (trace_flag): New.
19444 (longopts): Accept --trace instead of --statistics.
19445 * src/getargs.h, src/options.c: Adjust.
19446 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
19447 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
19448
19449 2001-11-19 Akim Demaille <akim@epita.fr>
19450
19451 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
19452 pointers to clarify the code.
19453 (save_reductions, save_shifts): Factor common parts of alternatives.
19454
19455 2001-11-19 Akim Demaille <akim@epita.fr>
19456
19457 * src/LR0.c (new_state, get_state): Complete TRACE code.
19458 * src/closure.c: Include `reader.h' to get `tags', needed by the
19459 trace code.
19460 Rename the conditional DEBUG as TRACE.
19461 Output consistently TRACEs to stderr, not stdout.
19462 * src/derives.c: Likewise.
19463 * src/reduce.c: (inaccessable_symbols): Using if is better style
19464 than goto.
19465 Use `#if TRACE' instead of `#if 0' for tracing code.
19466
19467 2001-11-19 Akim Demaille <akim@epita.fr>
19468
19469 * src/system.h (LIST_FREE, shortcpy): New.
19470 * src/LR0.c: Use them.
19471 * src/output.c (free_itemsets, free_reductions, free_shifts):
19472 Remove, replaced by LIST_FREE.
19473
19474 2001-11-19 Akim Demaille <akim@epita.fr>
19475
19476 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
19477 (REDUCTIONS_ALLOC): New.
19478 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
19479 allocation.
19480
19481 2001-11-19 Akim Demaille <akim@epita.fr>
19482
19483 * src/LR0.c (new_state): Complete trace code.
19484 * src/nullable.c (set_nullable): Don't translate traces.
19485
19486 2001-11-19 Akim Demaille <akim@epita.fr>
19487
19488 * src/print_graph.c (print_core): Better locality of variables.
19489 * src/print.c (print_core): Likewise.
19490
19491 2001-11-19 Akim Demaille <akim@epita.fr>
19492
19493 * src/vcg.c: You do the output, so you are responsible of the
19494 handling of VCG syntax, in particular: use quotearg.
19495 * src/print_graph.c: Don't.
19496 (print_actions): Don't output the actions as part of the nodes,
19497 since that's the job of the edges.
19498 (print_state): Don't output by hand: fill the node description,
19499 and ask for its output.
19500
19501 2001-11-19 Akim Demaille <akim@epita.fr>
19502
19503 * src/bison.simple (yyparse): When verbosely reporting an error,
19504 no longer put additional quotes around token names.
19505 * tests/calc.at: Adjust.
19506
19507 2001-11-19 Akim Demaille <akim@epita.fr>
19508
19509 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
19510 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
19511 * src/output.c: Adjust.
19512
19513 2001-11-19 Akim Demaille <akim@epita.fr>
19514
19515 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
19516 (rule_t): this.
19517 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
19518
19519 2001-11-19 Akim Demaille <akim@epita.fr>
19520
19521 * src/gram.h (rule_t): New.
19522 (rule_table): New.
19523 (rrhs, rlhs): Remove, part of state_t.
19524 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
19525 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
19526 * src/reader.c, src/reduce.c: Adjust.
19527
19528 2001-11-19 Akim Demaille <akim@epita.fr>
19529
19530 * src/reader.c (symbols_output): New, extracted from...
19531 (packsymbols): Here.
19532 (reader): Call it.
19533
19534 2001-11-19 Akim Demaille <akim@epita.fr>
19535
19536 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
19537 (maxrhs): this new function.
19538
19539 2001-11-19 Akim Demaille <akim@epita.fr>
19540
19541 * src/lalr.c (F): New macro to access the variable F.
19542 Adjust.
19543
19544 2001-11-19 Akim Demaille <akim@epita.fr>
19545
19546 * src/lalr.h (LA): New macro to access the variable LA.
19547 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19548 * src/lalr.c: Adjust.
19549
19550 2001-11-19 Akim Demaille <akim@epita.fr>
19551
19552 * src/lalr.c (initialize_LA): Only initialize LA. Let...
19553 (set_state_table): handle the `lookaheads' members.
19554
19555 2001-11-19 Akim Demaille <akim@epita.fr>
19556
19557 * src/lalr.h (lookaheads): Removed array, whose contents is now
19558 a member of...
19559 (state_t): this structure.
19560 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19561 Adjust.
19562
19563 2001-11-19 Akim Demaille <akim@epita.fr>
19564
19565 * src/lalr.h (consistent): Removed array, whose contents is now
19566 a member of...
19567 (state_t): this structure.
19568 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19569 Adjust.
19570
19571 2001-11-19 Akim Demaille <akim@epita.fr>
19572
19573 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
19574 contents are now members of...
19575 (state_t): this structure.
19576 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19577 Adjust.
19578
19579 2001-11-19 Akim Demaille <akim@epita.fr>
19580
19581 * src/lalr.h (state_t): New.
19582 (state_table): Be a state_t * instead of a core **.
19583 (accessing_symbol): Remove, part of state_t.
19584 * src/lalr.c: Adjust.
19585 (set_accessing_symbol): Merge into...
19586 (set_state_table): this.
19587 * src/print_graph.c, src/conflicts.c: Adjust.
19588
19589 2001-11-14 Akim Demaille <akim@epita.fr>
19590
19591 * tests/calc.at, tests/output.at, tests/regression.at,
19592 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
19593 now the tests are run in private dirs, therefore AC_CLEANUP and
19594 family can be simplified to 0-ary.
19595 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
19596 use abs. path to find config.h.
19597 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
19598 stderr, there can be way too much random noise.
19599 Instead pass -Werror to GCC and rely on the exit status.
19600 Reported by Wolfram Wagner.
19601
19602 2001-11-14 Akim Demaille <akim@epita.fr>
19603
19604 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
19605 defined only if yyoverflow is defined, to avoid `warning: unused
19606 variable `yyvs1''.
19607 Reported by The Test Suite.
19608
19609 2001-11-14 Akim Demaille <akim@epita.fr>
19610
19611 * src/print.c: Include reduce.h.
19612 Reported by Hans Aberg.
19613
19614 2001-11-14 Akim Demaille <akim@epita.fr>
19615
19616 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
19617 Revert a previous patch: these are really const.
19618 * src/conflicts.c (conflict_report): Additional useless pair of
19619 braces to pacify GCC's warnings for `if () if () {} else {}'.
19620 * src/lex.c (parse_percent_token): Replace equal_offset with
19621 arg_offset.
19622 arg is const.
19623 Be sure to strdup `arg' when used, since there is no reason for
19624 token_buffer not to change.
19625
19626 2001-11-14 Akim Demaille <akim@epita.fr>
19627
19628 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
19629 definition.
19630 * src/main.c (main): Use them.
19631 Suggested by Hans Aberg.
19632
19633 2001-11-12 Akim Demaille <akim@epita.fr>
19634
19635 * src/system.h (ngettext): Now that we use ngettext, be sure to
19636 provide a default definition when NLS are not used.
19637
19638 2001-11-12 Akim Demaille <akim@epita.fr>
19639
19640 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
19641 Use @kbd to denote user input.
19642 (Language and Grammar): ANSIfy the example.
19643 Adjust its layout for info/notinfo.
19644 (Location Tracking Calc): Output error messages to stderr.
19645 Output locations in a more GNUtically correct way.
19646 Fix a couple of Englishos.
19647 Adjust @group/@end group pairs.
19648
19649 2001-11-12 Akim Demaille <akim@epita.fr>
19650
19651 %expect was not functioning at all.
19652
19653 * src/conflicts.c (expected_conflicts): Set to -1.
19654 (conflict_report): Use ngettext.
19655 (conflicts_print): Check %expect and make its violation an error.
19656 * doc/bison.texinfo (Expect Decl): Adjust.
19657 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
19658 * tests/regression.at (%expect not enough, %expect right)
19659 (%expect too much): New.
19660
19661 2001-11-12 Akim Demaille <akim@epita.fr>
19662
19663 * tests/regression.at (Conflicts): Rename as...
19664 (Unresolved SR Conflicts): this.
19665 (Solved SR Conflicts): New.
19666
19667 2001-11-12 Akim Demaille <akim@epita.fr>
19668
19669 * src/reduce.c (print_results): Rename as...
19670 (reduce_output): This.
19671 Output to OUT, passed as argument, instead of output_obstack.
19672 (dump_grammar): Likewise.
19673 (reduce_free): New.
19674 Also free V1.
19675 (reduce_grammar): No longer call reduce_output, since...
19676 * src/print.c (print_results): do it.
19677 * src/main.c (main): Call reduce_free;
19678
19679 2001-11-12 Akim Demaille <akim@epita.fr>
19680
19681 * src/conflicts.c (print_reductions): Accept OUT as argument.
19682 Output to it, not to output_obstack.
19683 * src/print.c (print_actions): Adjust.
19684
19685 2001-11-12 Akim Demaille <akim@epita.fr>
19686
19687 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
19688 the result instead of using...
19689 (src_total, rrc_total, src_count, rrc_count): Remove.
19690 (any_conflicts): Remove.
19691 (print_conflicts): Split into...
19692 (conflicts_print, conflicts_output): New.
19693 * src/conflicts.h: Adjust.
19694 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
19695 * src/print.c (print_grammar): Issue `\n' between two rules.
19696 * tests/regression.at (Conflicts): New.
19697 Reported by Tom Lane.
19698
19699 2001-11-12 Akim Demaille <akim@epita.fr>
19700
19701 * tests/regression.at (Invalid input): Remove, duplicate with
19702 ``Invalid input: 1''.
19703
19704 2001-11-12 Akim Demaille <akim@epita.fr>
19705
19706 * tests/torture.at (AT_DATA_STACK_TORTURE)
19707 (Exploding the Stack Size with Alloca)
19708 (Exploding the Stack Size with Malloc): New.
19709
19710 2001-11-12 Akim Demaille <akim@epita.fr>
19711
19712 * src/bison.simple (YYSTACK_REALLOC): New.
19713 (yyparse) [!yyoverflow]: Use it and free the old stack.
19714 Reported by Per Allansson.
19715
19716 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
19717
19718 * src/bison.simple: Define type yystype instead of YYSTYPE, and
19719 define CPP macro, which substitute YYSTYPE by yystype.
19720 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
19721 with yyltype/YYLTYPE. This allows inclusion of the generated
19722 header within the parser if the compiler, such as GGC, accepts
19723 multiple equivalent #defines.
19724 From Akim.
19725
19726 2001-11-05 Akim Demaille <akim@epita.fr>
19727
19728 * src/reader.c (symbols_output): New, extracted from...
19729 (packsymbols): here.
19730 (reader): Adjust.
19731
19732 2001-11-05 Akim Demaille <akim@epita.fr>
19733
19734 * src/lex.c (parse_percent_token): s/quotearg/quote/.
19735
19736 2001-11-05 Akim Demaille <akim@epita.fr>
19737
19738 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
19739 pattern.
19740
19741 2001-11-05 Akim Demaille <akim@epita.fr>
19742
19743 * src/options.h (struct option_table_struct): set_flags is void*.
19744 * src/options.c (longopts): Support `--output' and `%output'.
19745 (usage): Adjust.
19746 * src/lex.h (tok_setopt): Remove, replaced with...
19747 (tok_intopt, tok_stropt): these new guys.
19748 * src/lex.c (getopt.h): Not needed.
19749 (token_buffer, unlexed_token_buffer): Not const.
19750 (percent_table): Promote `-' over `_' in directive names.
19751 Active `%name-prefix', `file-prefix', and `output'.
19752 (parse_percent_token): Accept possible arguments to directives.
19753 Promote `-' over `_' in directive names.
19754
19755 2001-11-04 Akim Demaille <akim@epita.fr>
19756
19757 * doc/bison.texinfo (Decl Summary): Split the list into
19758 `directives for grammars' and `directives for bison'.
19759 Sort'em.
19760 Add description of `%name-prefix', `file-prefix', and `output'.
19761 Promote `-' over `_' in directive names.
19762 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
19763 Simplify the description of `--name-prefix'.
19764 Promote `-' over `_' in directive names.
19765 Promote `--output' over `--output-file'.
19766 Fix the description of `--defines'.
19767 * tests/output.at: Exercise %file-prefix and %output.
19768
19769 2001-11-02 Akim Demaille <akim@epita.fr>
19770
19771 * doc/refcard.tex: Update.
19772
19773 2001-11-02 Akim Demaille <akim@epita.fr>
19774
19775 * src/symtab.h (SUNDEF): New.
19776 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
19777 stand for `uninitialized', instead of 0.
19778 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
19779 * src/lex.c (lex): Adjust.
19780
19781 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
19782 Number it 0.
19783 Let yylex return it instead of a plain 0.
19784 Reported by Dick Streefland.
19785
19786 2001-11-02 Akim Demaille <akim@epita.fr>
19787
19788 * tests/regression.at (Mixing %token styles): New test.
19789
19790 2001-11-02 Akim Demaille <akim@epita.fr>
19791
19792 * src/reader.c (parse_thong_decl): Formatting changes.
19793 (token_translations_init): New, extracted from...
19794 (packsymbols): Here.
19795 Adjust.
19796
19797 2001-11-01 Akim Demaille <akim@epita.fr>
19798
19799 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
19800 Check that `9foo.y' produces correct cpp guards.
19801 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
19802 guards.
19803 Reported by Wwp.
19804
19805 2001-11-01 Akim Demaille <akim@epita.fr>
19806
19807 * tests/regression.at (Invalid input: 2): New.
19808 * src/lex.c (unlexed_token_buffer): New.
19809 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
19810 too.
19811 Reported by Wwp.
19812
19813 2001-11-01 Akim Demaille <akim@epita.fr>
19814
19815 * tests/calc.at: Catch up with 1.30.
19816 * configure.in: Bump to 1.49a.
19817 Adjust to newer Autotest.
19818
19819 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
19820
19821 * src/conflicts.c: Move global variables rrc_total and src_total ...
19822 (print_conflicts): here.
19823 * src/output.c (output): Free global variable user_toknums.
19824 * src/lex.c (token_obstack): Become static.
19825
19826 2001-10-18 Akim Demaille <akim@epita.fr>
19827
19828 * tests/atlocal.in (GCC): Add.
19829 * tests/calc.at: s/m4_match/m4_bmatch/.
19830 s/m4_patsubst/m4_bpatsubst/.
19831 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
19832 * configure.in: AC_SUBST(GCC).
19833
19834 2001-10-14 Marc Autret <autret_m@epita.fr>
19835
19836 * src/options.c (create_long_option_table): Fix.
19837
19838 2001-10-10 Akim Demaille <akim@epita.fr>
19839
19840 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
19841
19842 2001-10-04 Akim Demaille <akim@epita.fr>
19843
19844 * src/reader.c (parse_union_decl): Push the caracters in
19845 union_obstack, not attrs_obstack.
19846
19847 2001-10-04 Akim Demaille <akim@epita.fr>
19848
19849 Merge in the branch 1.29.
19850
19851 * src/reader.c (packsymbols): Use a temporary obstack for
19852 `%%tokendef', since output_stack is already used elsewhere.
19853
19854 2001-10-02 Akim Demaille <akim@epita.fr>
19855
19856 Bump 1.29d.
19857
19858 2001-10-02 Akim Demaille <akim@epita.fr>
19859
19860 Version 1.29c.
19861
19862 2001-10-02 Akim Demaille <akim@epita.fr>
19863
19864 * tests/regression.at (Invalid CPP headers): New.
19865 From Alexander Belopolsky.
19866 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
19867
19868 2001-10-02 Akim Demaille <akim@epita.fr>
19869
19870 * tests/regression.at (Invalid input): New.
19871 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
19872 Reported by Shura.
19873
19874 2001-10-02 Akim Demaille <akim@epita.fr>
19875
19876 * tests/calc.at: Now that --debug works, the tests must be adjusted.
19877
19878 2001-10-02 Akim Demaille <akim@epita.fr>
19879
19880 * src/output.c (output_parser): Assert `skeleton'.
19881 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
19882 systems.
19883 From Shura.
19884
19885 2001-10-01 Marc Autret <autret_m@epita.fr>
19886
19887 * src/lex.h: Echo modifications.
19888 * src/lex.c (unlex): Parameter is now token_t.
19889 From Hans Aberg.
19890
19891 2001-10-01 Marc Autret <autret_m@epita.fr>
19892
19893 * src/main.c: Include lex.h.
19894 From Hans Aberg.
19895
19896 2001-09-29 Akim Demaille <akim@epita.fr>
19897
19898 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
19899
19900 2001-09-28 Akim Demaille <akim@epita.fr>
19901
19902 * tests/testsuite.at: Update to newer Autotest.
19903 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
19904
19905 2001-09-27 Akim Demaille <akim@epita.fr>
19906
19907 Position independent wrapper.
19908
19909 * tests/bison: Remove.
19910 * tests/bison.in: New.
19911 * configure.in: Adjust.
19912
19913 2001-09-27 Paul Eggert <eggert@twinsun.com>
19914
19915 Port quotearg fixes from tar 1.13.24.
19916
19917 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
19918 tm to be declared.
19919 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
19920 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
19921
19922 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
19923 * m4/mbrtowc.m4: New file.
19924 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
19925 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
19926
19927 2001-09-27 Akim Demaille <akim@epita.fr>
19928
19929 Bump to 1.29c.
19930
19931 2001-09-27 Akim Demaille <akim@epita.fr>
19932
19933 Version 1.29b.
19934
19935 2001-09-25 Akim Demaille <akim@epita.fr>
19936
19937 * src/system.h: Include `xalloc.h'.
19938 Remove it from the C files.
19939 * src/files.c (output_files): Free the obstacks.
19940 * src/lex.c (init_lex): Rename as...
19941 (lex_init): this.
19942 (lex_free): New.
19943 * src/main.c (main): Use it.
19944
19945 2001-09-24 Marc Autret <autret_m@epita.fr>
19946
19947 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
19948 to output informations in fout (FILE*).
19949 (open_graph, close_graph): Likewise.
19950 (output_graph, output_edge, output_node): Likewise.
19951 * src/vcg.h: Update function prototypes.
19952 * src/print_graph.c (print_graph): Open output graph file.
19953 (print_actions): Adjust.
19954 * src/files.h: Remove extern declaration.
19955 * src/files.c: Remove graph_obstack declaration.
19956 (open_files): Remove graph_obstack initialization.
19957 (output_files): Remove graph_obstack saving.
19958
19959 2001-09-24 Marc Autret <autret_m@epita.fr>
19960
19961 * src/files.c (compute_output_file_names): Fix.
19962
19963 2001-09-24 Marc Autret <autret_m@epita.fr>,
19964 Akim Demaille <akim@epita.fr>
19965
19966 * src/reader.c (reader): Remove call to free_symtab ().
19967 * src/main.c (main): Call it here.
19968 Include symtab.h.
19969 * src/conflicts.c (initialize_conflicts): Rename as...
19970 (solve_conflicts): this.
19971 * src/print.c (print_core, print_actions, print_state)
19972 (print_grammar): Dump to a file instead a `output_obstack'.
19973 (print_results): Dump `output_obstack', and then proceed with the
19974 FILE *.
19975 * src/files.c (compute_output_file_names, close_files): New.
19976 (output_files): Adjust.
19977 * src/main.c (main): Adjust.
19978
19979 2001-09-23 Marc Autret <autret_m@epita.fr>
19980
19981 * src/files.c (compute_header_macro): Computes header macro name
19982 from spec_defines_file when given.
19983
19984 2001-09-23 Marc Autret <autret_m@epita.fr>
19985
19986 * src/files.c (output_files): Add default extensions.
19987
19988 2001-09-22 Akim Demaille <akim@epita.fr>
19989
19990 * src/conflicts.c (finalize_conflicts): Rename as...
19991 (free_conflicts): this.
19992
19993 2001-09-22 Akim Demaille <akim@epita.fr>
19994
19995 * src/gram.c (gram_free): Rename back as...
19996 (dummy): this.
19997 (output_token_translations): Free `token_translations'.
19998 * src/symtab.c (free_symtab): Free the tag field.
19999
20000 2001-09-22 Akim Demaille <akim@epita.fr>
20001
20002 Remove `translations' as it is always set to true.
20003
20004 * src/gram.h: Adjust.
20005 * src/reader.c (packsymbols, parse_token_decl): Adjust
20006 * src/print.c (print_grammar): Adjust.
20007 * src/output.c (output_token_translations): Adjust.
20008 * src/lex.c (lex): Adjust.
20009 * src/gram.c: Be sure the set pointers to NULL.
20010 (dummy): Rename as...
20011 (gram_free): this.
20012
20013 2001-09-22 Akim Demaille <akim@epita.fr>
20014
20015 * configure.in: Invoke AM_LIB_DMALLOC.
20016 * src/system.h: Use dmalloc.
20017 * src/LR0.c: Be sure to have pointers initialized to NULL.
20018 (allocate_itemsets): Allocate kernel_items only if needed.
20019
20020 2001-09-22 Akim Demaille <akim@epita.fr>
20021
20022 * configure.in: Bump to 1.29b.
20023 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
20024 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
20025 need xmalloc.c in calc.y.
20026 From Pascal Bart.
20027
20028 2001-09-21 Akim Demaille <akim@epita.fr>
20029
20030 Version 1.29a.
20031 * Makefile.maint, config/config.guess, config/config.sub,
20032 * config/missing: Update from masters.
20033 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
20034 upon package.m4.
20035 * configure.in (ALL_LINGUAS): Add `tr'.
20036
20037 2001-09-21 Akim Demaille <akim@epita.fr>
20038
20039 * tests/Makefile.am (package.m4): Move to...
20040 ($(srcdir)/$(TESTSUITE)): here.
20041
20042 2001-09-20 Akim Demaille <akim@epita.fr>
20043
20044 * src/complain.c: No longer try to be standalone: use system.h.
20045 Don't assume __STDC__ is defined to 1. Just test if it is defined.
20046 * src/complain.h: Likewise.
20047 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
20048 Remove the unused variable `n'.
20049 From Albert Chin-A-Young.
20050
20051 2001-09-18 Marc Autret <autret_m@epita.fr>
20052
20053 * doc/bison.1: Update.
20054 * doc/bison.texinfo (Bison Options): Update --defines and --graph
20055 descriptions.
20056 (Option Cross Key): Update.
20057 Add --graph.
20058
20059 2001-09-18 Marc Autret <autret_m@epita.fr>
20060
20061 * tests/regression.at: New test (comment in %union).
20062
20063 2001-09-18 Marc Autret <autret_m@epita.fr>
20064
20065 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
20066 do that.
20067 Reported by Keith Browne.
20068
20069 2001-09-18 Marc Autret <autret_m@epita.fr>
20070
20071 * tests/output.at: Add tests for --defines and --graph.
20072
20073 2001-09-18 Marc Autret <autret_m@epita.fr>
20074
20075 * tests/output.at: Removes tests of %{header,src}_extension features.
20076
20077 2001-09-18 Akim Demaille <akim@epita.fr>
20078
20079 * tests/Makefile.am (package.m4): New.
20080 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
20081 (_AT_CHECK_CALC_ERROR): Likewise.
20082 Factor the `, ' part of verbose error messages.
20083
20084 2001-09-18 Marc Autret <autret_m@epita.fr>
20085
20086 * src/getargs.c (longopts): Declare --defines and --graph as options
20087 with optional arguments.
20088 * src/files.h: Add extern declarations.
20089 * src/files.c (spec_graph_file, spec_defines_file): New.
20090 (output_files): Update.
20091 Remove CPP-outed code.
20092
20093 2001-09-18 Marc Autret <autret_m@epita.fr>
20094
20095 Turn off %{source,header}_extension feature.
20096
20097 * src/files.c (compute_exts_from_gf): Update.
20098 (compute_exts_from_src): Update.
20099 (output_files): CPP-out useless code.
20100 * src/files.h: Remove {header,source}_extension extern declarations.
20101 * src/reader.c (parse_dquoted_param): CPP-out.
20102 (parse_header_extension_decl): Remove.
20103 (parse_source_extension_decl): Remove.
20104 (read_declarations): Remove cases tok_{hdrext,srcext}.
20105 * src/lex.c (percent_table): Remove {header,source}_extension entries.
20106 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
20107
20108 2001-09-10 Akim Demaille <akim@epita.fr>
20109
20110 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
20111 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
20112 (AT_CHECK_OUTPUT): this.
20113 Merely check ls' exit status, its output is useless.
20114
20115 2001-09-10 Akim Demaille <akim@epita.fr>
20116
20117 * tests/calc.at: Use m4_match.
20118 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
20119
20120 2001-09-10 Marc Autret <autret_m@epita.fr>,
20121 Akim Demaille <akim@epita.fr>
20122
20123 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
20124 enum color_e.
20125 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
20126 to `normal'.
20127 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
20128 * src/lex.h: Adjust prototype.
20129 (token_t): Add `tok_undef'.
20130 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
20131 (parse_percent_token): Now returns token_t.
20132 Add default statement in switch.
20133 (lex): Separate `c' as an input variable, from the token_t result
20134 part.
20135 (unlexed): Is a token_t.
20136
20137 2001-09-10 Akim Demaille <akim@epita.fr>
20138
20139 * configure.in: Bump to 1.29a.
20140
20141 2001-09-07 Akim Demaille <akim@epita.fr>
20142
20143 Version 1.29.
20144
20145 2001-08-30 Akim Demaille <akim@epita.fr>
20146
20147 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
20148 * m4/atconfig.m4: Remove.
20149 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
20150 * tests/bison: New.
20151 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
20152 m4_if, m4_patsubst, and m4_regexp.
20153 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
20154 `input' file instead of echo.
20155
20156 2001-08-29 Akim Demaille <akim@epita.fr>
20157
20158 Bump to 1.28e.
20159
20160 2001-08-29 Akim Demaille <akim@epita.fr>
20161
20162 Version 1.28d.
20163
20164 2001-08-29 Paul Eggert <eggert@twinsun.com>
20165
20166 * src/bison.simple (yyparse): Don't take the address of an
20167 item before the start of an array, as that doesn't conform to
20168 the C Standard.
20169
20170 2001-08-29 Robert Anisko <anisko_r@epita.fr>
20171
20172 * doc/bison.texinfo (Location Tracking Calc): New node.
20173
20174 2001-08-29 Paul Eggert <eggert@twinsun.com>
20175
20176 * src/output.c (output): Do not define const, as this now
20177 causes more problems than it cures.
20178
20179 2001-08-29 Akim Demaille <akim@epita.fr>
20180
20181 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
20182 the nodes.
20183 Be sure to tag the `detailmenu'.
20184
20185 2001-08-29 Akim Demaille <akim@epita.fr>
20186
20187 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
20188 download in a tmp dir.
20189
20190 2001-08-28 Marc Autret <autret_m@epita.fr>
20191
20192 * config/depcomp: New file.
20193
20194 2001-08-28 Marc Autret <autret_m@epita.fr>
20195
20196 * doc/bison.1 (mandoc): Adjust.
20197 From Juan Manuel Guerrero.
20198
20199 2001-08-28 Marc Autret <autret_m@epita.fr>
20200
20201 * src/print_graph.c (print_state): Fix.
20202
20203 2001-08-27 Marc Autret <autret_m@epita.fr>
20204
20205 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
20206 char * members.
20207 Echo modifications to the functions prototypes.
20208 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
20209
20210 2001-08-27 Marc Autret <autret_m@epita.fr>
20211
20212 * src/vcg.c: Include `xalloc.h'.
20213 (add_colorentry): New.
20214 (add_classname): New.
20215 (add_infoname): New.
20216 * src/vcg.h: Add new prototypes.
20217
20218 2001-08-27 Akim Demaille <akim@epita.fr>
20219
20220 * Makefile.maint: Sync. again with CVS Autoconf.
20221
20222 2001-08-27 Akim Demaille <akim@epita.fr>
20223
20224 * Makefile.maint: Formatting changes.
20225 (po-update, cvs-update, update): New targets.
20226 (AMTAR): Remove.
20227
20228 2001-08-27 Akim Demaille <akim@epita.fr>
20229
20230 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
20231 * Makefile.maint: Sync. with CVS Autoconf.
20232
20233 2001-08-27 Marc Autret <autret_m@epita.fr>
20234
20235 * src/vcg.h (struct infoname_s): New.
20236 (struct colorentry_s): New.
20237 (graph_s): New fields {vertical,horizontal}_order in structure.
20238 Add `infoname' field.
20239 Add `colorentry' field;
20240 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
20241 (G_HORIZONTAL_ORDER): New.
20242 (G_INFONAME): New.
20243 (G_COLORENTRY): New.
20244 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
20245 Add output of `infoname'.
20246 Add output of `colorentry'.
20247
20248 2001-08-27 Marc Autret <autret_m@epita.fr>
20249
20250 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
20251 This one shadowed a global parameter.
20252
20253 2001-08-24 Marc Autret <autret_m@epita.fr>
20254
20255 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
20256 instead of `unsigned'.
20257 (print_state): Do not call obstack_object_size () in obstack_grow ()
20258 to avoid macro variables shadowing.
20259
20260 2001-08-23 Marc Autret <autret_m@epita.fr>
20261
20262 * src/lex.c (percent_table): Typo: s/naem/name/.
20263 Add graph option.
20264 Normalize new options declarations.
20265
20266 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
20267
20268 * tests/suite.at: Exercise %header_extension and %source_extension.
20269
20270 2001-08-16 Marc Autret <autret_m@epita.fr>
20271
20272 * src/reader.c (parse_dquoted_param): New.
20273 (parse_header_extension_decl): Use it.
20274 (parse_source_extension_decl): Likewise.
20275
20276 2001-08-16 Marc Autret <autret_m@epita.fr>
20277
20278 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
20279 (get_xxxx_str): Use assert () instead of complain ().
20280 Remove return invokations in default cases.
20281 (get_decision_str): Modify default behaviour. Remove second argument.
20282 Echo modifications on calls.
20283 (output_graph): Fix.
20284
20285 2001-08-16 Marc Autret <autret_m@epita.fr>
20286
20287 * src/getargs.c (usage): Update with ``-g, --graph''.
20288
20289 2001-08-16 Marc Autret <autret_m@epita.fr>
20290
20291 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
20292 (Option Cross Key): Likewise.
20293 * doc/bison.1: Update.
20294
20295 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
20296
20297 * src/output.c (output_master_parser): Don't finish action_obstack.
20298 (output_parser): Don't care about the muscle action, here.
20299 (prepare): Copy the action_obstack in the action muscle.
20300 (output): Free action_obstack.
20301
20302 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
20303
20304 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
20305 will contain `%union' declaration.
20306 (parse_union_decl): Delete #line directive output.
20307 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
20308 informations about %union.
20309 (parse_union_decl): Copy the union_obstack in the muscle stype.
20310 * src/bison.simple: Add new #line directive.
20311 Add typdef %%stype YYSTYPE.
20312
20313 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
20314
20315 * src/bison.simple: Add new `#line' directive.
20316
20317 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
20318
20319 * src/bison.simple: New `#line' directive.
20320 * src/output.c (output_parser): Support new dynamic muscle input_line.
20321
20322 2001-09-22 Marc Autret <autret_m@epita.fr>
20323
20324 * src/output.c (output_master_parser): New.
20325 (output_parser): Be more re-entrant.
20326
20327 2001-09-21 Marc Autret <autret_m@epita.fr>
20328
20329 * src/reader.c (copy_definition, parse_union_decl): Update and use
20330 `linef' muscle.
20331 (copy_action): Likewise.
20332 Use obstack_1grow ().
20333 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
20334
20335 2001-09-21 Marc Autret <autret_m@epita.fr>
20336
20337 * src/options.c (option_table): Adjust.
20338 * src/lex.c (parse_percent_token): Fix.
20339
20340 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
20341
20342 * src/options.c (symtab.h): Include it, need by lex.h.
20343
20344 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
20345
20346 * src/lex.c (parse_percent_token): Change type of variable `tx', which
20347 is now an option_table_struct*.
20348 (option_strcmp): New function option_strcmp.
20349 (parse_percent_token): Call option_strcmp.
20350 * src/getargs.c (xalloc.h, options.h): Include it.
20351 (getargs): Call create_long_option_table.
20352 (getargs): Free longopts at the end of the function.
20353 (shortopts): Move in options.c.
20354 * src/options.c (create_long_option_table): New function. Convert
20355 information from option_table to option structure.
20356 * src/reader.c (options.h): Include it.
20357
20358 * src/Makefile.am: Adjust.
20359 * src/options.c (option_table): Create from longopts and percent_table.
20360 * src/getargs.c (longopts): Delete.
20361 * src/lex.c (struct percent_table_struct): Delete.
20362 (percent_table): Delete.
20363 (options.h): Include it.
20364 * src/options.c: Create.
20365 * src/options.h: Create.
20366 Declare enum opt_access_e.
20367 Define struct option_table_struct.
20368
20369 2001-09-20 Marc Autret <autret_m@epita.fr>
20370
20371 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
20372 sections of Bison.
20373
20374 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
20375
20376 * src/bison.simple: s/%%filename/%%skeleton.
20377 * src/muscle_tab.c (getargs.h): Include it.
20378 (muscle_init): Insert new muscle skeleton.
20379
20380 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
20381
20382 * src/output.c (output_parser): Delete unused variable actions_dumped.
20383
20384 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
20385
20386 * src/output.c (output): Delete call to reader_output_yylsp.
20387 * src/reader.c (reader): Likewise.
20388 * src/reader.h: Delete declaration of reader_output_yylsp.
20389
20390 2001-09-02 Marc Autret <autret_m@epita.fr>
20391
20392 * src/reader.c: Include muscle_tab.h.
20393 (parse_union_decl): Update.
20394 (parse_macro_decl): Rename parse_muscle_decl.
20395 Update to use renamed functions and variable.
20396 (read_declarations, copy_action, read_additionnal_code, : Updated
20397 with correct variables and functions names.
20398 (packsymbols, reader): Likewise.
20399
20400 * src/reader.h (muscle_obstack): Extern declaration update.
20401
20402 * src/output.c: Include muscle_tab.h
20403 In all functions using macro_insert, change by using muscle_insert ().
20404 (macro_obstack): Rename muscle_obstack.
20405 Echo modifications in the whole file.
20406 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
20407 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
20408 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
20409
20410 * src/muscle_tab.h: Update double inclusion macros.
20411 (macro_entry_s): Rename muscle_entry_s.
20412 Update prototypes.
20413
20414 * src/muscle_tab.c: Include muscle_tab.h.
20415 Rename macro_tabble to muscle_table.
20416 (mhash1, mhash2, mcmp): Use muscle_entry.
20417 (macro_init): Rename muscle_init. Update.
20418 (macro_insert): Rename muscle_insert. Update.
20419 (macro_find): Rename muscle_find. Update.
20420
20421 * src/main.c: Include muscle_tab.h.
20422 (main): Call muscle_init ().
20423 * src/Makefile.am (bison_SOURCES): Echo modifications.
20424
20425 2001-09-02 Marc Autret <autret_m@epita.fr>
20426
20427 Now the files macro_tab.[ch] are named muscle_tab.[ch].
20428
20429 * src/muscle_tab.c, src/muscle_tab.h: Add files.
20430
20431 2001-09-02 Marc Autret <autret_m@epita.fr>
20432
20433 * src/macrotab.c, src/macrotab.h: Remove.
20434
20435 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
20436
20437 * src/reader.c (copy_guard): Use muscle to specify the `#line'
20438 filename.
20439
20440 2001-09-01 Marc Autret <autret_m@epita.fr>
20441
20442 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
20443 to an explicit value to activate the feature. We do it here.
20444
20445 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20446
20447 * src/output.c (prepare): Delete the `filename' muscule insertion.
20448 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
20449 (parse_union_decl): Likewise.
20450 * src/macrotab.c (macro_init): Initialize filename by infile.
20451
20452 2001-08-31 Marc Autret <autret_m@epita.fr>
20453
20454 * src/bison.simple (YYLSP_NEEDED): New definition.
20455 * src/output.c (prepare): Add macro insertion of `locations_flag'
20456
20457 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20458
20459 * src/output.c (prepare): Delete insertion of previous muscles,
20460 and insert the `prefix' muscles.
20461 * src/macrotab.c (macro_init): Likewise.
20462 (macro_init): Initialization prefix directive by `yy'.
20463 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
20464 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
20465 yylval, yydebug, yyerror, yynerrs and yyparse.
20466 New directive `#define' to substitute yydebug, ... with option
20467 name_prefix.
20468
20469 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20470
20471 * src/main.c (main): Standardize.
20472 * src/output.c (output_table_data, output_parser): Likewise.
20473 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
20474
20475 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
20476
20477 * src/reader.c (read_additionnal_code): Rename %%user_code to
20478 %%epilogue.
20479 * src/output.c (output): Rename %%declarations to %%prologue.
20480 * src/bison.simple: Echo modifications.
20481
20482 2001-08-31 Marc Autret <autret_m@epita.fr>
20483
20484 * src/reader.c (readgram): CleanUp.
20485 (output_token_defines): Likewise.
20486 (packsymbols): Likewise.
20487 (reader): Likewise.
20488 * src/output.c (output): CPP-out useless code.
20489
20490 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20491
20492 * src/reader.c (reader): Delete obsolete call to function
20493 output_trailers and output_headers.
20494 * src/output.h: Remove obsolete functions prototypes of output_headers
20495 and output_trailers.
20496
20497 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
20498
20499 * src/main.c: Include macrotab.h.
20500 * src/macrotab.h (macro_entry_s): Constify fields.
20501 Adjust functions prototypes.
20502 * src/macrotab.c (macro_insert): Constify key and value.
20503 (macro_find): Constify key.
20504 (macro_insert): Include 'xalloc.h'
20505 (macro_insert): Use XMALLOC.
20506 (macro_find): Constify return value.
20507 * src/output.c (output_table_data): Rename table to table_data.
20508 (output_parser): Constify macro_key, macro_value.
20509
20510 2001-08-30 Marc Autret <autret_m@epita.fr>
20511
20512 * src/reader.c (parse_skel_decl): New.
20513 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
20514 * src/lex.h (token_t): New token `tok_skel'.
20515 * src/lex.c (percent_table): Add skeleton option entry.
20516 Standardize.
20517
20518 2001-08-29 Marc Autret <autret_m@epita.fr>
20519
20520 * src/bison.simple: Add %%user_code directive at the end.
20521 * src/reader.c (read_additionnal_code): New.
20522 (reader): Use it.
20523 * src/output.c (output_program): Remove.
20524 (output): Update.
20525
20526 2001-08-28 Marc Autret <autret_m@epita.fr>
20527
20528 * src/output.c (output_actions): Clean up.
20529 (output_gram): CPP-out useless code.
20530 * src/reader.c (reader): Clean up, CPP-out useless code.
20531
20532 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
20533
20534 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
20535 directive.
20536 * src/bison.simple: Add `%%definitions'.
20537
20538 2001-08-28 Marc Autret <autret_m@epita.fr>
20539
20540 * config/depcomp: New file.
20541
20542 2001-08-27 Paul Eggert <eggert@twinsun.com>
20543
20544 * src/bison.simple (yyparse): Don't take the address of an
20545 item before the start of an array, as that doesn't conform to
20546 the C Standard.
20547
20548 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
20549
20550 * src/output.c (output): Remove the initialization of the macro
20551 obstack. It was done too late here.
20552
20553 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
20554 completely wrong.
20555 (reader): Initialize the macro obstack here, since we need it to grow
20556 '%define' directives.
20557
20558 * src/reader.h: Declare the macro obstack as extern.
20559
20560 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
20561
20562 * src/output.c (output_parser): Fix. Store single '%' characters in
20563 the output obstack instead of throwing them away.
20564
20565 2001-08-27 Akim Demaille <akim@epita.fr>
20566
20567 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
20568
20569 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20570
20571 * lib/Makefile.am: Adjust.
20572
20573 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20574
20575 * src/bison.simple: Update and add '%%' directives.
20576
20577 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20578
20579 * src/reader.c (reader): Remove calls to 'output_headers' and
20580 'output_trailers'. Remove some C output.
20581 (readgram): Disable a piece of code that was writing a default
20582 definition for 'YYSTYPE'.
20583 (reader_output_yylsp): Remove.
20584 (packsymbols): Output token defintions to a macro.
20585 (copy_definition): Disable C output.
20586
20587 * src/reader.c (parse_macro_decl): New function used to parse macro
20588 declarations.
20589 (copy_string2): Put the body of copy_string into this new function.
20590 Add a parameter to let the caller choose whether he wants to copy the
20591 string delimiters or not.
20592 (copy_string): Be a simple call to copy_string2 with the last argument
20593 bound to true.
20594 (read_declarations): Add case for macro definition.
20595 (copy_identifier): New.
20596 (parse_macro_decl): Read macro identifiers using copy_identifier
20597 rather than lex.
20598
20599 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20600
20601 * src/output.c (prepare): Add prefixed names.
20602 (output_parser): Output semantic actions.
20603 (output_parser): Fix bug on '%%line' directives.
20604
20605 * src/output.c (output_headers): Remove. The C code printed by this
20606 function should now be in the skeletons.
20607 (output_trailers): Remove.
20608 (output): Disable call to 'reader_output_yylsp'.
20609 (output_rule_data): Do not output tables to the table obstack.
20610
20611 * src/output.c: Remove some C dedicated output.
20612 Improve the use of macro and output obstacks.
20613 (output_defines): Remove.
20614
20615 * src/output.c (output_token_translations): Associate 'translate'
20616 table with a macro. No output to the table obstack.
20617 (output_gram): Same for 'rhs' and 'prhs'.
20618 (output_stos): Same for 'stos'.
20619 (output_rule_data): Same for 'r1' and 'r2'.
20620 (token_actions): Same for 'defact'.
20621 (goto_actions): Same for 'defgoto'.
20622 (output_base): Same for 'pact' and 'pgoto'.
20623 (output_table): Same for 'table'.
20624 (output_check): Same for 'check'.
20625
20626 * src/output.c (output_table_data): New function.
20627 (output_short_table): Remove.
20628 (output_short_or_char_table): Remove.
20629
20630 * src/output.c (output_parser): Replace most of the skeleton copy code
20631 with something new. Skeletons are now processed character by character
20632 rather than line by line, and Bison looks for '%%' macros. This is the
20633 first step in making Bison's output process (a lot) more flexible.
20634 (output_parser): Use the macro table.
20635
20636 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20637
20638 * src/main.c (main): Initialize the macro table.
20639
20640 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20641
20642 * src/lex.c (percent_table): Add tok_define.
20643 * src/lex.h: Add tok_define.
20644
20645 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20646
20647 * src/macrotab.c: New file.
20648 * src/macrotab.h: New file.
20649 * src/Makefile.am: Update.
20650
20651 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20652
20653 * lib/hash.c: New file.
20654 * lib/hash.h: New file.
20655 * lib/Makefile.am: Update.
20656
20657 2001-08-15 Akim Demaille <akim@epita.fr>
20658
20659 Version 1.28c.
20660
20661 2001-08-15 Marc Autret <autret_m@epita.fr>
20662
20663 * src/reader.c (readgram): Indent output macro YYSTYPE.
20664 (packsymbols): Likewise.
20665 (output_token_defines): Likewise.
20666 * src/files.c: Standardize.
20667 (compute_header_macro): New.
20668 (defines_obstack_save): New. Use compute_header_macro.
20669 (output_files): Update. Use defines_obstack_save.
20670
20671 2001-08-15 Akim Demaille <akim@epita.fr>
20672
20673 * doc/bison.texinfo (Table of Symbols): Document
20674 YYSTACK_USE_ALLOCA.
20675
20676 2001-08-15 Akim Demaille <akim@epita.fr>
20677
20678 * missing: Update from CVS Automake.
20679 * config/config.guess, config/config.sub, config/texinfo.tex:
20680 Update from gnu.org.
20681
20682 2001-08-15 Akim Demaille <akim@epita.fr>
20683
20684 * Makefile.maint: Sync with CVS Autoconf.
20685
20686 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
20687
20688 * doc/bison.texinfo: Include GNU Free Documentation License from
20689 `fdl.texi'.
20690 * doc/fdl.texi: Add to package.
20691
20692 2001-08-14 Marc Autret <autret_m@epita.fr>
20693
20694 Turn on %{source,header}_extension features.
20695
20696 * src/lex.c (percent_table): Un-CPP out header_extension and
20697 source_extension.
20698 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
20699 (compute_exts_from_src): Remove conditions. It restores priorities
20700 between options.
20701
20702 2001-08-14 Marc Autret <autret_m@epita.fr>
20703
20704 * src/files.c (compute_base_names): Add extensions computing when
20705 `--file-prefix' used.
20706 Standardize function calls.
20707
20708 2001-08-13 Marc Autret <autret_m@epita.fr>
20709
20710 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
20711 defining it (defined but null disables alloca).
20712
20713 2001-08-13 Marc Autret <autret_m@epita.fr>
20714
20715 * src/bison.simple (_yy_memcpy): CPP reformat.
20716
20717 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
20718
20719 * tests/atconfig.in (CPPFLAGS): Fix.
20720
20721 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
20722
20723 * doc/bison.texinfo: Include GNU General Public License from
20724 `gpl.texi'.
20725 * doc/gpl.texi: Add to package.
20726
20727 2001-08-10 Marc Autret <autret_m@epita.fr>
20728
20729 * src/print_graph.h: Fix.
20730 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
20731
20732 2001-08-10 Akim Demaille <akim@epita.fr>
20733
20734 * src/system.h: Provide default declarations for stpcpy, strndup,
20735 and strnlen.
20736
20737 2001-08-10 Robert Anisko <anisko_r@epita.fr>
20738
20739 * doc/bison.texinfo (Locations): Update @$ stuff.
20740
20741 2001-08-09 Robert Anisko <anisko_r@epita.fr>
20742
20743 * src/bison.simple (YYLLOC_DEFAULT): Update.
20744 (yyparse): Adjust.
20745
20746 2001-08-08 Marc Autret <autret_m@epita.fr>
20747
20748 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
20749 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
20750 Reported by Fabrice Bauzac.
20751
20752 2001-08-08 Marc Autret <autret_m@epita.fr>
20753
20754 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
20755 * src/vcg.c (output_node): Fix.
20756 * src/vcg.h: Cleanup.
20757 * src/print_graph.c: Add comments.
20758 (node_output_size): New global variable. Simplify the formatting of
20759 the VCG graph output.
20760 (print_actions): Unused code is now used. It notifies the final state
20761 and no action states in the VCG graph. It also give the reduce actions.
20762 The `shift and goto' edges are red and the `go to state' edges are
20763 blue.
20764 Get the current node name and node_obstack by argument.
20765 (node_obstack): New variable.
20766 (print_state): Manage node_obstack.
20767 (print_core): Use node_obstack given by argument.
20768 A node is not only computed here but in print_actions also.
20769 (print_graph): CPP out useless code instead of commenting it.
20770
20771 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
20772
20773 * tests/atconfig.in (CPPFLAGS): Fix.
20774
20775 2001-08-07 Akim Demaille <akim@epita.fr>
20776
20777 * src/print_graph.c (quote): New.
20778 (print_core): Use it.
20779
20780 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
20781
20782 * src/vcg.c (complain.h): Include it.
20783 Unepitaize `return' invocations.
20784 [NDEBUG] (main): Remove.
20785 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
20786 * src/files.c (open_files): Initialize graph_obstack.
20787 * src/print_graph.c (print_actions): CPP out useless code.
20788 (print_core): Don't output the last `\n' in labels.
20789 Use `quote'.
20790 * src/files.c (output_files): Output the VCG file.
20791 * src/main.c (main): Invoke print_graph ();
20792
20793 2001-08-06 Marc Autret <autret_m@epita.fr>
20794
20795 Automaton VCG graph output.
20796 Using option ``-g'' or long option ``--graph'', you can generate
20797 a gram_filename.vcg file containing a VCG description of the LALR (1)
20798 automaton of your grammar.
20799
20800 * src/main.c: Call to print_graph() function.
20801 * src/getargs.h: Update.
20802 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
20803 (graph_flag): New flag.
20804 (longopts): Update.
20805 (getargs): Add case `g'.
20806 * src/files.c (graph_obstack): New obstack struct.
20807 (open_files): Initialize new obstack.
20808 (output_files): Saves graph_obstack if required.
20809 * src/files.h (graph_obstack): New extern declaration.
20810 * src/Makefile.am: Add new source files.
20811
20812 2001-08-06 Marc Autret <autret_m@epita.fr>
20813
20814 * src/print_graph.c, src/print_graph.h (graph): New.
20815 * src/vcg.h: New file.
20816 * src/vcg.c: New file, VCG graph handling.
20817
20818 2001-08-06 Marc Autret <autret_m@epita.fr>
20819
20820 Add of %source_extension and %header_extension which specify
20821 the source or/and the header output file extension.
20822
20823 * src/files.c (compute_base_names): Remove initialisation of
20824 src_extension and header_extension.
20825 (compute_exts_from_gf): Update.
20826 (compute_exts_from_src): Update.
20827 (output_files): Update.
20828 * src/reader.c (parse_header_extension_decl): New.
20829 (parse_source_extension_decl): New.
20830 (read_declarations): New case statements for the new tokens.
20831 * src/lex.c (percent_table): Add entries for %source_extension
20832 and %header_extension.
20833 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
20834
20835 2001-08-06 Marc Autret <autret_m@epita.fr>
20836
20837 * configure.in: Bump to 1.28c.
20838 * doc/bison.texinfo: Texinfo thingies.
20839
20840 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
20841
20842 * tests/atconfig.in (CPPFLAGS): Add.
20843 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
20844
20845 2001-08-03 Akim Demaille <akim@epita.fr>
20846
20847 Version 1.28b.
20848
20849 2001-08-03 Akim Demaille <akim@epita.fr>
20850
20851 * tests/Makefile.am (check-local): Ship testsuite.
20852 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
20853 Include `string.h'.
20854
20855 2001-08-03 Akim Demaille <akim@epita.fr>
20856
20857 * configure.in: Try using -Wformat when compiling.
20858
20859 2001-08-03 Akim Demaille <akim@epita.fr>
20860
20861 * configure.in: Bump to 1.28b.
20862
20863 2001-08-03 Akim Demaille <akim@epita.fr>
20864
20865 * src/complain.c: Adjust strerror_r portability issues.
20866
20867 2001-08-03 Akim Demaille <akim@epita.fr>
20868
20869 Version 1.28a.
20870
20871 2001-08-03 Akim Demaille <akim@epita.fr>
20872
20873 * src/getargs.c, src/getarg.h (skeleton)): Constify.
20874 * src/lex.c (literalchar): Avoid name clashes on `buf'.
20875 * src/getargs.c: Include complain.h.
20876 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
20877 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
20878
20879 2001-08-03 Akim Demaille <akim@epita.fr>
20880
20881 * src/reader.c (readgram): Display hidden chars in error messages.
20882
20883 2001-08-03 Akim Demaille <akim@epita.fr>
20884
20885 Update to gettext 0.10.39.
20886
20887 2001-08-03 Akim Demaille <akim@epita.fr>
20888
20889 * lib/strspn.c: New.
20890
20891 2001-08-01 Marc Autret <autret_m@epita.fr>
20892
20893 * doc/bison.texinfo: Update.
20894 * doc/bison.1 (mandoc): Update.
20895 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
20896 * src/files.c: Support output files extensions computing.
20897 (src_extension): New static variable.
20898 (header_extension): New static variable.
20899 (tr): New function.
20900 (get_extension_index): New function, gets the index of an extension
20901 filename in a string.
20902 (compute_exts_from_gf): New function, computes extensions from the
20903 grammar file extension.
20904 (compute_exts_from_src): New functions, computes extensions from the
20905 C source file extension, file given by ``-o'' option.
20906 (compute_base_names): Update.
20907 (output_files): Update.
20908
20909 2001-08-01 Robert Anisko <anisko_r@epita.fr>
20910
20911 * doc/bison.texi: Document @$.
20912 (Locations): New section.
20913
20914 2001-07-18 Akim Demaille <akim@epita.fr>
20915
20916 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
20917 * config/prev-version.txt, config/move-if-change: New.
20918 * Makefile.am: Adjust.
20919
20920 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
20921
20922 * src/bison.simple (yyparse): Suppress warning `comparaison
20923 between signed and unsigned'.
20924
20925 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
20926
20927 * src/getargs.h (raw_flag): Remove.
20928 * src/getargs.c: Die on `-r'/`--raw'.
20929 * src/lex.c (parse_percent_token): Die on `%raw'.
20930 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
20931 * tests/calc.at: Suppress test with option `--raw'.
20932
20933 2001-07-14 Akim Demaille <akim@epita.fr>
20934
20935 * config/: New.
20936 * configure.in: Require Autoconf 2.50.
20937 Update to gettext 0.10.38.
20938
20939 2001-03-16 Akim Demaille <akim@epita.fr>
20940
20941 * doc/bison.texinfo: ANSIfy the examples.
20942
20943 2001-03-16 Akim Demaille <akim@epita.fr>
20944
20945 * getargs.c (skeleton): New variable.
20946 (longopts): --skeleton is a new option.
20947 (shortopts, getargs): -S is a new option.
20948 * getargs.h: Declare skeleton.
20949 * output.c (output_parser): Use it.
20950
20951 2001-03-16 Akim Demaille <akim@epita.fr>
20952
20953 * m4/strerror_r.m4: New.
20954 * m4/error.m4: Run AC_FUNC_STRERROR_R.
20955 * lib/error.h, lib/error.c: Update.
20956
20957 2001-03-16 Akim Demaille <akim@epita.fr>
20958
20959 * src/getargs.c (longopts): Clean up.
20960
20961 2001-02-21 Akim Demaille <akim@epita.fr>
20962
20963 * src/reader.c (gensym): `gensym_count' is your own.
20964 Use a static buf to create the symbol name, as token_buffer is no
20965 longer a buffer.
20966
20967 2001-02-08 Akim Demaille <akim@epita.fr>
20968
20969 * src/conflicts.c (conflict_report): Be sure not to append to res
20970 between two calls, which could happen if both first sprintf were
20971 skipped, but not the first cp += strlen.
20972
20973 2001-02-08 Akim Demaille <akim@epita.fr>
20974
20975 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
20976 New, from fileutils 4.0.37.
20977 * configure.in: Require Autoconf 2.49c. I took some time before
20978 making this decision. This is the only way out for portability
20979 issues in Bison, it would mean way too much duplicate effort to
20980 import in Bison features implemented in 2.49c since 2.13.
20981 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
20982
20983 2001-02-02 Akim Demaille <akim@epita.fr>
20984
20985 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
20986 * lib/xalloc.h, lib/xmalloc.c: Update.
20987
20988 2001-01-19 Akim Demaille <akim@epita.fr>
20989
20990 Get rid of the ad hoc handling of token_buffer in the scanner: use
20991 the obstacks.
20992
20993 * src/lex.c (token_obstack): New.
20994 (init_lex): Initialize it. No longer call...
20995 (grow_token_buffer): this. Remove it.
20996 Adjust all the places which used it to use the obstack.
20997
20998 2001-01-19 Akim Demaille <akim@epita.fr>
20999
21000 * src/lex.h: Rename all the tokens:
21001 s/\bENDFILE\b/tok_eof/g;
21002 s/\bIDENTIFIER\b/tok_identifier/g;
21003 etc.
21004 Let them be enums, not #define, to ease debugging.
21005 Adjust all the code.
21006
21007 2001-01-18 Akim Demaille <akim@epita.fr>
21008
21009 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
21010 * src/lex.c (maxtoken, grow_token_buffer): Static.
21011
21012 2001-01-18 Akim Demaille <akim@epita.fr>
21013
21014 Since we now use obstacks, more % directives can be enabled.
21015
21016 * src/lex.c (percent_table): Also accept `%yacc',
21017 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
21018 `%debug'.
21019 Handle the actions for `%semantic_parser' and `%pure_parser' here,
21020 instead of returning a token.
21021 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
21022 * src/reader.c (read_declarations): Adjust.
21023 * src/files.c (open_files): Don't call `compute_base_names', don't
21024 compute `attrsfile' since they depend upon data which might be
21025 *in* the input file now.
21026 (output_files): Do it here.
21027 * src/output.c (output_headers): Document the fact that this patch
21028 introduces a guaranteed SEGV for semantic parsers.
21029 * doc/bison.texinfo: Document them.
21030 * tests/suite.at: Exercise these %options.
21031
21032 2000-12-20 Akim Demaille <akim@epita.fr>
21033
21034 Also handle the output file (--verbose) with obstacks.
21035
21036 * files.c (foutput): Remove.
21037 (output_obstack): New.
21038 Adjust all dependencies.
21039 * src/conflicts.c: Return a string.
21040 * src/system.h (obstack_grow_string): Rename as...
21041 (obstack_sgrow): this. Be ready to work with non literals.
21042 (obstack_fgrow4): New.
21043
21044 2000-12-20 Akim Demaille <akim@epita.fr>
21045
21046 * src/files.c (open_files): Fix the computation of short_base_name
21047 in the case of `-o foo.tab.c'.
21048
21049 2000-12-20 Akim Demaille <akim@epita.fr>
21050
21051 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
21052 (copy_dollar): Now that everything uses obstacks, get rid of the
21053 FILE * parameters.
21054
21055 2000-12-20 Akim Demaille <akim@epita.fr>
21056
21057 * src/files.c (open_files): Actually the `.output' file is based
21058 on the short_base_name, not base_name.
21059 * tests/suite.at (Checking output file names): Adjust.
21060
21061 2000-12-20 Akim Demaille <akim@epita.fr>
21062
21063 * src/bison.s1: Remove, we now use directly...
21064 * src/bison.simple: this.
21065 * src/Makefile.am: Use pkgdata instead of data.
21066
21067 2000-12-20 Akim Demaille <akim@epita.fr>
21068
21069 * src/files.c (guard_obstack): New.
21070 (open_files): Initialize it.
21071 (output_files): Dump it...
21072 * src/files.h: Export it.
21073 * src/reader.c (copy_guard): Use it.
21074
21075 2000-12-19 Akim Demaille <akim@epita.fr>
21076
21077 * src/files.c (outfile, defsfile, actfile): Removed as global
21078 vars.
21079 (open_files): Don't compute them.
21080 (output_files): Adjust.
21081 (base_name, short_base_name): Be global.
21082 Adjust dependencies.
21083
21084 2000-12-19 Akim Demaille <akim@epita.fr>
21085
21086 * src/files.c (strsuffix): New.
21087 (stringappend): Be just like strcat but allocate.
21088 (base_names): Eve out from open_files.
21089 Try to simplify the rather hairy computation of base_name and
21090 short_base_name.
21091 (open_files): Use it.
21092 * tests/suite.at (Checking output file names): New test.
21093
21094 2000-12-19 Akim Demaille <akim@epita.fr>
21095
21096 * src/system.h (obstack_grow_literal_string): Rename as...
21097 (obstack_grow_string): this.
21098 * src/output.c (output_parser): Recognize `%% actions' instead of
21099 `$'.
21100 * src/bison.s1: s/$/%% actions/.
21101 * src/bison.hairy: Likewise.
21102
21103 2000-12-19 Akim Demaille <akim@epita.fr>
21104
21105 * src/output.c (output_parser): Compute the `#line' lines when
21106 there are.
21107 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
21108 Suggested by Hans Aberg.
21109
21110 2000-12-19 Akim Demaille <akim@epita.fr>
21111
21112 Let the handling of the skeleton files be local to the procedures
21113 that use it.
21114
21115 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
21116 longer static.
21117 (fparser, open_extra_files): Remove.
21118 (open_files, output_files): Don't take care of fparser.
21119 * src/files.h: Adjust.
21120 * src/output.c (output_parser): Open and close the file to the
21121 skeleton.
21122 * src/reader.c (read_declarations): When %semantic_parser, open
21123 fguard.
21124
21125 2000-12-19 Akim Demaille <akim@epita.fr>
21126
21127 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
21128 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
21129
21130 2000-12-19 Akim Demaille <akim@epita.fr>
21131
21132 * src/files.c (open_files): Yipee! We no longer need all the code
21133 looking for `/tmp' since we have no tmp file.
21134
21135 2000-12-19 Akim Demaille <akim@epita.fr>
21136
21137 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
21138 New macros.
21139 * src/files.c (open_files): Less dependency on MSDOS etc.
21140
21141 2000-12-14 Akim Demaille <akim@epita.fr>
21142
21143 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
21144 Provide a default definition.
21145 Use it when executing the default @ action.
21146 * src/reader.c (reader_output_yylsp): No longer include
21147 `timestamp' and `text' in the default YYLTYPE.
21148
21149 2000-12-12 Akim Demaille <akim@epita.fr>
21150
21151 * src/reader.c (copy_definition, parse_union_decl, copy_action)
21152 (copy_guard): Quote the file names.
21153 Reported by Laurent Mascherpa.
21154
21155 2000-12-12 Akim Demaille <akim@epita.fr>
21156
21157 * src/output.c (output_headers, output_program, output): Be sure
21158 to escape special characters when outputting filenames.
21159 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
21160 (output_headers): Don't depend on them, Use ACTSTR.
21161
21162 2000-11-17 Akim Demaille <akim@epita.fr>
21163
21164 * lib/obstack.h: Formatting changes.
21165 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
21166 prevents type checking.
21167 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
21168 cast the value to (void *): assigning a `foo *' to a `void *'
21169 variable is valid.
21170 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
21171 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
21172 append characters.
21173
21174 2000-11-17 Akim Demaille <akim@epita.fr>
21175
21176 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
21177 as...
21178 (suite.m4, regression.m4, calc.m4): these.
21179 * tests/atgeneral.m4: Update from CVS Autoconf.
21180
21181 2000-11-17 Akim Demaille <akim@epita.fr>
21182
21183 * tests/regression.m4 (%union and --defines): New test,
21184 demonstrating a current bug in the obstack implementation.
21185
21186 2000-11-17 Akim Demaille <akim@epita.fr>
21187
21188 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
21189 macros.
21190 Use them to declare the variables which are global or local to
21191 `yyparse'.
21192
21193 2000-11-17 Akim Demaille <akim@epita.fr>
21194
21195 * acconfig.h: Remove, no longer used.
21196
21197 2000-11-07 Akim Demaille <akim@epita.fr>
21198
21199 * src: s/Copyright (C)/Copyright/g.
21200
21201 2000-11-07 Akim Demaille <akim@epita.fr>
21202
21203 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
21204 defining.
21205 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
21206
21207 2000-11-07 Akim Demaille <akim@epita.fr>
21208
21209 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
21210 Merge in a single CPP if/else.
21211
21212 2000-11-07 Akim Demaille <akim@epita.fr>
21213
21214 * src/output.c (output): Remove useless variables.
21215 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
21216 argument `data' for consistency with the prototypes.
21217 Qualify it `const'.
21218 (obstack_copy, obstack_copy0): Rename the second argument as
21219 `address' for consistency. Qualify it `const'.
21220 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
21221 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
21222 `const' their input argument (`data' or `address').
21223 Adjust the corresponding macros to include `const' in casts.
21224
21225 2000-11-03 Akim Demaille <akim@epita.fr>
21226
21227 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
21228 s/PFILE1/BISON_HAIRY/.
21229 Adjust dependencies.
21230
21231 2000-11-03 Akim Demaille <akim@epita.fr>
21232
21233 For some reason, this was not applied.
21234
21235 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21236 `unlink': it's no longer used.
21237
21238 2000-11-03 Akim Demaille <akim@epita.fr>
21239
21240 * src/files.c (skeleton_find): New function, eved out of...
21241 (open_files, open_extra_files): here.
21242
21243 2000-11-03 Akim Demaille <akim@epita.fr>
21244
21245 Don't use `atexit'.
21246
21247 * src/files.c (obstack_save): New function.
21248 (done): Rename as...
21249 (output_files): this.
21250 Use `obstack_save'.
21251 * src/main.c (main): Don't use `atexit' to register `done', since
21252 it no longer has to remove tmp files, just call `output_files'
21253 when there are no errors.
21254
21255 2000-11-02 Akim Demaille <akim@epita.fr>
21256
21257 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21258 `unlink': it's no longer used.
21259 * src/files.h: Formatting changes.
21260
21261 2000-11-02 Akim Demaille <akim@epita.fr>
21262
21263 Remove the last uses of mktemp and unlink/delete.
21264
21265 * src/files.c (fdefines, ftable): Removed.
21266 (defines_ostack, table_obstack): New.
21267 Adjust dependencies of the former into uses of the latter.
21268 * src/output.c (output_short_or_char_table, output_short_table):
21269 Convert to using obstacks.
21270 * src/reader.c (copy_comment2): Accept one FILE * and two
21271 obstacks.
21272 (output_token_defines, reader_output_yylsp): Use obstacks.
21273 * src/system.h (obstack_fgrow3): New.
21274 * po/POTFILES.in: Adjust.
21275
21276 2000-11-01 Akim Demaille <akim@epita.fr>
21277
21278 Change each use of `fattrs' into a use of `attrs_obstack'.
21279
21280 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
21281 * src/files.c (fattrs): Remove.
21282 (attrs_obstack): New.
21283 Adjust all dependencies.
21284 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
21285
21286 2000-11-01 Akim Demaille <akim@epita.fr>
21287
21288 Introduce obstacks.
21289 Change each use of `faction' into a use of `action_obstack'.
21290
21291 * lib/obstack.h, lib/obstack.c: New files.
21292 * src/files.c (faction): Remove.
21293 (action_obstack): New.
21294 Adjust all dependencies.
21295
21296 2000-10-20 Akim Demaille <akim@epita.fr>
21297
21298 * lib/quote.h (PARAMS): New macro. Use it.
21299
21300 2000-10-16 Akim Demaille <akim@epita.fr>
21301
21302 * src/output.c (output_short_or_char_table): New function.
21303 (output_short_table, output_token_translations): Use it.
21304 (goto_actions): Use output_short_table.
21305
21306 2000-10-16 Akim Demaille <akim@epita.fr>
21307
21308 * src/symtab.c (bucket_new): New function.
21309 (getsym): Use it.
21310
21311 * src/output.c (output_short_table): New argument to display the
21312 comment associated with the table.
21313 Adjust dependencies.
21314 (output_gram): Use it.
21315 (output_rule_data): Nicer output layout for YYTNAME.
21316
21317 2000-10-16 Akim Demaille <akim@epita.fr>
21318
21319 * src/lex.c (read_typename): New function.
21320 (lex): Use it.
21321 * src/reader.c (copy_dollar): Likewise.
21322
21323 2000-10-16 Akim Demaille <akim@epita.fr>
21324
21325 * src/reader.c (copy_comment2): Expect the input stream to be on
21326 the `/' which is suspected to open a comment, instead of being
21327 called after `//' or `/*' was read.
21328 (copy_comment, copy_definition, parse_union_decl, copy_action)
21329 (copy_guard): Adjust.
21330
21331 2000-10-16 Akim Demaille <akim@epita.fr>
21332
21333 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
21334 `read_signed_integer'.
21335
21336 2000-10-16 Akim Demaille <akim@epita.fr>
21337
21338 * src/reader.c (copy_dollar): New function.
21339 (copy_guard, copy_action): Use it.
21340
21341 2000-10-16 Akim Demaille <akim@epita.fr>
21342
21343 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
21344 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
21345 New files, from Fileutils 4.0.27.
21346 * src/main.c (printable_version): Remove.
21347 * src/lex.c, src/reader.c: Use `quote'.
21348
21349 2000-10-04 Akim Demaille <akim@epita.fr>
21350
21351 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
21352
21353 2000-10-04 Akim Demaille <akim@epita.fr>
21354
21355 * doc/bison.texinfo: Various typos spotted by Neil Booth.
21356
21357 2000-10-04 Akim Demaille <akim@epita.fr>
21358
21359 When a literal string is used to define two different tokens,
21360 `bison -v' segfaults.
21361 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
21362
21363 * tests/regression.m4: New file.
21364 Include the core of the sample provided by Piotr Gackiewicz.
21365 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
21366 properly.
21367
21368 2000-10-04 Akim Demaille <akim@epita.fr>
21369
21370 * src/reader.c (parse_expect_decl): Keep `count' within the size
21371 of `buffer'.
21372 From Neil Booth.
21373
21374 2000-10-02 Paul Eggert <eggert@twinsun.com>
21375
21376 * bison.s1 (yyparse): Assign the default value
21377 unconditionally, to avoid a GCC warning and make the parser a
21378 tad smaller.
21379
21380 2000-10-02 Akim Demaille <akim@epita.fr>
21381
21382 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
21383 options.
21384
21385 2000-10-02 Akim Demaille <akim@epita.fr>
21386
21387 * src/derives.c, src/print.c, src/reduce.c: To ease the
21388 translation, move some `\n' out of the translated strings.
21389
21390 2000-10-02 Akim Demaille <akim@epita.fr>
21391
21392 The location tracking mechanism is precious for parse error
21393 messages. Nevertheless, it is enabled only when `@n' is used in
21394 the grammar, which is a different issue (you can use it in error
21395 message, but not in the grammar per se). Therefore, there should
21396 be another means to enable it.
21397
21398 * src/getargs.c (getargs): Support `--locations'.
21399 (usage): Report it.
21400 * src/getargs.h (locationsflag): Export it.
21401 * src/lex.c (percent_table): Support `%locations'.
21402 * src/reader.c (yylsp_needed): Remove this variable, now replaced
21403 with `locationsflag'.
21404 * doc/bison.texinfo: Document `--locations' and `%locations'.
21405 Sort the options.
21406 * tests/calc.m4: Test it.
21407
21408 For regularity of the names, replace each
21409 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
21410 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
21411 In addition replace each `flag' with `_flag'.
21412
21413 2000-10-02 Akim Demaille <akim@epita.fr>
21414
21415 Also test parse error messages, including with YYERROR_VERBOSE.
21416
21417 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
21418 associative).
21419 Use it to check the computations.
21420 Use it to check `nonassoc' is honored.
21421 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
21422 `--yyerror-verbose'.
21423 (_AT_CHECK_CALC): Adjust to this option.
21424 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
21425
21426 2000-10-02 Akim Demaille <akim@epita.fr>
21427
21428 Test also `--verbose', `--defines' and `--name-prefix'. Testing
21429 the latter demonstrates a flaw in the handling of non debugging
21430 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
21431 was used in order to simplify:
21432
21433 #if YYDEBUG
21434 if (yydebug)
21435 {
21436 ...
21437 }
21438 #endif
21439
21440 into
21441
21442 if (yydebug)
21443 {
21444 ...
21445 }
21446
21447 unfortunately this leads to a CPP conflict when
21448 `--name-prefix=foo' is used since it produces `#define yydebug
21449 foodebug'.
21450
21451 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
21452 (YYDPRINTF): New macro.
21453 Spread its use.
21454 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
21455 the bison options.
21456 Also test `--verbose', `--defines' and `--name-prefix'.
21457
21458 2000-10-02 Akim Demaille <akim@epita.fr>
21459
21460 Improve the readability of the produced parsers.
21461
21462 * src/bison.s1: Formatting changes.
21463 Improve the comment related to the `$' mark.
21464 (yydefault): Don't fall through to `yyresume': `goto' there.
21465 * src/output.c (output_parser): When the `$' is met, skip the end
21466 of its line.
21467 New variable, `number_of_dollar_signs', to check there's exactly
21468 one `$' in the parser skeleton.
21469
21470 2000-10-02 Akim Demaille <akim@epita.fr>
21471
21472 * lib/xstrdup.c: New file, from the fileutils.
21473 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
21474 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
21475 instead of strlen + xmalloc + strcpy.
21476 * src/symtab.c (copys): Remove, use xstrdup instead.
21477
21478 2000-10-02 Akim Demaille <akim@epita.fr>
21479
21480 * src/gram.h (associativity): New enum type which replaces the
21481 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
21482 `right_assoc', `left_assoc' and `non_assoc'.
21483 Adjust all dependencies.
21484 * src/reader.c: Formatting changes.
21485 (LTYPESTR): Don't define it, use it as a literal in
21486 `reader_output_yylsp'.
21487 * src/symtab.h (symbol_class): New enum type which replaces the
21488 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
21489 `sunknown', `stoken and `snterm'.
21490
21491 2000-10-02 Akim Demaille <akim@epita.fr>
21492
21493 * src/getargs.c (fixed_outfiles): Rename as...
21494 (yaccflag): for consistency and accuracy.
21495 Adjust dependencies.
21496
21497 2000-10-02 Akim Demaille <akim@epita.fr>
21498
21499 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
21500 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
21501 difficult and introduced a lot of core dump. It turns out that
21502 Bison used an implementation of `xmalloc' based on `calloc', and
21503 at various places it does depend upon the initialization to 0. I
21504 have not tried to isolate the pertinent places, and all the former
21505 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
21506 someone should address this issue.
21507
21508 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
21509 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
21510 files.
21511 Adjust dependencies.
21512 * src/warshall.h: New file.
21513 Propagate.
21514
21515 2000-10-02 Akim Demaille <akim@epita.fr>
21516
21517 Various anti-`extern in *.c' changes.
21518
21519 * src/system.h: Include `assert.h'.
21520
21521 2000-10-02 Akim Demaille <akim@epita.fr>
21522
21523 * src/state.h (nstates, final_state, first_state, first_shift)
21524 (first_reduction): Move their exportation from here...
21525 * src/LR0.h: to here.
21526 Adjust dependencies.
21527 * src/getargs.c (statisticsflag): New variable.
21528 Add support for `--statistics'.
21529 Adjust dependencies.
21530
21531 Remove a lot of now useless `extern' statements in most files.
21532
21533 2000-10-02 Akim Demaille <akim@epita.fr>
21534
21535 * src/LR0.h: New file.
21536 Propagate its use.
21537
21538 2000-10-02 Akim Demaille <akim@epita.fr>
21539
21540 * src/print.h: New file.
21541 Propagate its use.
21542 * src/print.c: Formatting and ordering changes.
21543 (verbose, terse): Replace with...
21544 (print_results): this new function.
21545 Adjust dependencies.
21546
21547 2000-10-02 Akim Demaille <akim@epita.fr>
21548
21549 * src/conflicts.c (conflict_report): New function.
21550 (conflict_log, verbose_conflict_log): Replace with...
21551 (print_conflicts): this function.
21552 Adjust dependencies.
21553 * src/conflicts.h: New file.
21554 Propagate its inclusion.
21555
21556 2000-10-02 Akim Demaille <akim@epita.fr>
21557
21558 * src/nullable.h: New file.
21559 Propagate its inclusion.
21560 * src/nullable.c: Formatting changes.
21561
21562 2000-10-02 Akim Demaille <akim@epita.fr>
21563
21564 * src/reduce.h: New file.
21565 Propagate its inclusion.
21566 * src/reduce.c: Topological sort and other formatting changes.
21567 (bool, TRUE, FALSE): Move their definition to...
21568 * src/system.h: here.
21569
21570 2000-10-02 Akim Demaille <akim@epita.fr>
21571
21572 * src/files.c: Formatting changes.
21573 (tryopen, tryclose, openfiles): Rename as...
21574 (xfopen, xfclose, open_files): this.
21575 (stringappend): static.
21576 * src/files.h: Complete the list of exported symbols.
21577 Propagate its use.
21578
21579 2000-10-02 Akim Demaille <akim@epita.fr>
21580
21581 * src/reader.h: New file.
21582 Propagate its use instead of tedious list of `extern' and
21583 prototypes.
21584 * src/reader.c: Formatting changes, topological sort,
21585 s/register//.
21586
21587 2000-10-02 Akim Demaille <akim@epita.fr>
21588
21589 * src/lex.h: Prototype `lex.c' exported functions.
21590 * src/reader.c: Adjust.
21591 * src/lex.c: Formatting changes.
21592 (safegetc): Rename as...
21593 (xgetc): this.
21594
21595 2000-10-02 Akim Demaille <akim@epita.fr>
21596
21597 * src/lalr.h: New file.
21598 Propagate its inclusion instead of prototypes and `extern'.
21599 * src/lalr.c: Formatting changes, topological sorting etc.
21600
21601 2000-10-02 Akim Demaille <akim@epita.fr>
21602
21603 * src/output.c (token_actions): Introduce a temporary array,
21604 YYDEFACT, that makes it possible for this function to use
21605 output_short_table.
21606
21607 2000-10-02 Akim Demaille <akim@epita.fr>
21608
21609 `user_toknums' is output as a `short[]' in `output.c', while it is
21610 defined as a `int[]' in `reader.c'. For consistency with the
21611 other output tables, `user_toknums' is now defined as a table of
21612 shorts.
21613
21614 * src/reader.c (user_toknums): Be a short table instead of an int
21615 table.
21616 Adjust dependencies.
21617
21618 Factor the short table outputs.
21619
21620 * src/output.c (output_short_table): New function.
21621 * src/output.c (output_gram, output_stos, output_rule_data)
21622 (output_base, output_table, output_check): Use it.
21623
21624 2000-10-02 Akim Demaille <akim@epita.fr>
21625
21626 * src/output.c (output): Topological sort of the functions, in
21627 order to get rid of the `static' prototypes.
21628 No longer use `register'.
21629 * src/output.h: New file.
21630 Propagate its inclusion in files explicitly prototyping functions
21631 from output.c.
21632
21633 2000-09-21 Akim Demaille <akim@epita.fr>
21634
21635 * src/atgeneral.m4: Update from Autoconf.
21636
21637 2000-09-21 Akim Demaille <akim@epita.fr>
21638
21639 * src/closure.h: New file.
21640 * src/closure.c: Formatting changes, topological sort over the
21641 functions, use of closure.h.
21642 (initialize_closure, finalize_closure): Rename as...
21643 (new_closure, free_closure): these. Adjust dependencies.
21644 * src/LR0.c: Formatting changes, topological sort, use of
21645 cloture.h.
21646 (initialize_states): Rename as...
21647 (new_states): this.
21648 * src/Makefile.am (noinst_HEADERS): Adjust.
21649
21650 2000-09-20 Akim Demaille <akim@epita.fr>
21651
21652 * src/acconfig.h: Don't protect config.h against multiple
21653 inclusion.
21654 Don't define PARAMS.
21655 * src/system.h: Define PARAMS.
21656 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
21657 purpose of config.h. system.h must not try to fix wrong
21658 definitions in config.h.
21659
21660 2000-09-20 Akim Demaille <akim@epita.fr>
21661
21662 * src/derives.h: New file.
21663 * src/main.c, src/derives.h: Use it.
21664 Formatting changes.
21665 * src/Makefile.am (noinst_HEADERS): Adjust.
21666
21667 2000-09-20 Akim Demaille <akim@epita.fr>
21668
21669 * tests/atgeneral.m4: Update from Autoconf.
21670 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
21671 (AT_CHECK_CALC): New macros.
21672 Use these macros to test bison with options `', `--raw',
21673 `--debug', `--yacc', `--yacc --debug'.
21674
21675 2000-09-19 Akim Demaille <akim@epita.fr>
21676
21677 * src/output.c: Formatting changes.
21678 * src/machine.h: Remove, leaving its contents in...
21679 * src/system.h: here.
21680 Include stdio.h.
21681 Adjust all dependencies on stdio.h and machine.h.
21682 * src/getargs.h: New file.
21683 Let all `extern' declarations about getargs.c be replaced with
21684 inclusion of `getargs.h'.
21685 * src/Makefile.am (noinst_HEADERS): Adjust.
21686
21687 * tests/calc.m4 (yyin): Be initialized in main, not on the global
21688 scope.
21689 (yyerror): Returns void, not int.
21690 * doc/bison.texinfo: Formatting changes.
21691
21692 2000-09-19 Akim Demaille <akim@epita.fr>
21693
21694 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
21695 portable.
21696
21697 2000-09-18 Akim Demaille <akim@epita.fr>
21698
21699 * configure.in: Append WARNING_CFLAGS to CFLAGS.
21700 * src/Makefile.am (INCLUDES): Don't.
21701 Be ready to fetch headers in lib/.
21702
21703 2000-09-18 Akim Demaille <akim@epita.fr>
21704
21705 * doc/bison.texinfo: Update the copyright.
21706 ANSIfy and GNUify the examples.
21707 Remove the old menu.
21708
21709 2000-09-18 Akim Demaille <akim@epita.fr>
21710
21711 First set of tests: use the `calc' example from the documentation.
21712
21713 * src/bison.s1 (yyparse): Condition the code using `yytname' which
21714 is defined only when YYDEBUG is.
21715 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
21716 * src/files.c (tryopen, tryclose): Formatting changes.
21717 Move to the top and be static.
21718 * src/reader.c (read_signed_integer): Likewise.
21719 * tests/calc.m4: New file.
21720 * Makefile.am, suite.m4: Adjust.
21721 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
21722
21723 2000-09-18 Akim Demaille <akim@epita.fr>
21724
21725 Add support for an Autotest test suite for Bison.
21726
21727 * m4/m4.m4, m4/atconfig.m4: New files.
21728 * m4/Makefile.am (EXTRA_DIST): Adjust.
21729 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
21730 files.
21731 * src/getargs.c: Display a more standard --version message.
21732 * src/reader.c (reader): Formatting changes.
21733 No longer depend upon VERSION_STRING.
21734 * configure.in: No longer use `dnl'.
21735 Set up the test suite and the new directory `tests/.
21736 (VERSION_STRING): Remove.
21737
21738 2000-04-14 Akim Demaille <akim@epita.fr>
21739
21740 * src/reader.c (copy_comment2): New function, same as former
21741 `copy_comment', but outputs into two FILE *.
21742 (copy_comment): Use it.
21743 (parse_union_decl): Use it.
21744 (get_type, parse_start_decl): Use the same `invalid' message.
21745 (parse_start_decl, parse_union_decl): Use the same `multiple'
21746 message.
21747 (parse_union_decl, copy_guard, copy_action): Use the same
21748 `unmatched' message.
21749 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
21750
21751 2000-03-31 Akim Demaille <akim@epita.fr>
21752
21753 * src/files.c (tryopen, tryclose): Move to the top.
21754 Be static.
21755
21756 2000-03-31 Akim Demaille <akim@epita.fr>
21757
21758 * src/main.c (main): Don't call `done', exit does it.
21759
21760 2000-03-31 Akim Demaille <akim@epita.fr>
21761
21762 * allocate.c: s/return (foo)/return foo/.
21763 * lalr.c: Likewise.
21764 * LR0.c: Likewise.
21765 * output.c: Likewise.
21766 * reader.c: Likewise.
21767 * symtab.c: Likewise.
21768 * vmsgetargs.c: Likewise.
21769
21770 2000-03-31 Akim Demaille <akim@epita.fr>
21771
21772 Clean up the error reporting functions.
21773
21774 * src/report.c: New file.
21775 * src/report.h: Likewise.
21776 * src/Makefile.am: Adjust.
21777 * m4/error.m4: New file.
21778 * m4/Makefile.am: Adjust.
21779 * configure.in (jm_PREREQ_ERROR): Call it.
21780 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
21781 Remove.
21782 (fatal, fatals): Remove. All callers use complain.c::fatal.
21783 (warn, warni, warns, warnss, warnss): Remove. All callers use
21784 complain.c::complain.
21785 (toomany): Remove, use fatal instead.
21786 * src/files.c (done): No argument, use complain_message_count.
21787 * src/main.c (main): Register `done' to `atexit'.
21788
21789 * src/getargs.c (usage): More `fputs', less `fprintf'.
21790
21791 2000-03-28 Akim Demaille <akim@epita.fr>
21792
21793 * lib/: New directory.
21794 * Makefile.am (SUBDIRS): Adjust.
21795 * configure.in: Adjust.
21796 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
21797 useless.
21798 * src/alloca.c: Moved to lib/.
21799 * src/getopt.c: Likewise.
21800 * src/getopt1.c: Likewise.
21801 * src/getopt.h: Likewise.
21802 * src/ansi2knr.c: Likewise.
21803 * src/ansi2knr.1: Likewise.
21804 * src/Makefile.am: Adjust.
21805 * lib/Makefile.am: New file.
21806
21807 2000-03-28 Akim Demaille <akim@epita.fr>
21808
21809 * src/getargs.c (usage): Refresh the help message.
21810
21811 2000-03-17 Akim Demaille <akim@epita.fr>
21812
21813 * src/getopt1.c: Updated from textutils 2.0e
21814 * src/getopt.c: Likewise.
21815 * src/getopt.h: Likewise.
21816
21817 2000-03-17 Akim Demaille <akim@epita.fr>
21818
21819 * src/Makefile.am (bison.simple): Fix the awk program: quote only
21820 the file name, not the whole `#line LINE FILE'.
21821
21822 2000-03-17 Akim Demaille <akim@epita.fr>
21823
21824 On syntax errors, report the token on which we choked.
21825
21826 * src/bison.s1 (yyparse): In the label yyerrlab, when
21827 YYERROR_VERBOSE, add yychar in msg.
21828
21829 2000-03-17 Akim Demaille <akim@epita.fr>
21830
21831 * src/reader.c (copy_at): New function.
21832 (copy_guard): Use it.
21833 (copy_action): Use it.
21834
21835 2000-03-17 Akim Demaille <akim@epita.fr>
21836
21837 Be kind to translators, save some useless translations.
21838
21839 * src/main.c (banner): New function.
21840 (fatal_banner): Use it.
21841 (warn_banner): Use it.
21842
21843 2000-03-17 Akim Demaille <akim@epita.fr>
21844
21845 * src/reader.c (copy_definition): Use copy_string and
21846 copy_comment. Removed now unused `match', `ended',
21847 `cplus_comment'.
21848 (copy_comment, copy_string): Moved, to be visible from
21849 copy_definition.
21850
21851 2000-03-17 Akim Demaille <akim@epita.fr>
21852
21853 * src/reader.c (copy_string): Declare `static inline'. No
21854 problems with inline, since it is checked by configure.
21855 (copy_comment): Likewise.
21856
21857 2000-03-17 Akim Demaille <akim@epita.fr>
21858
21859 * src/reader.c (packsymbols): Formatting changes.
21860
21861 2000-03-17 Akim Demaille <akim@epita.fr>
21862
21863 * src/reader.c (copy_comment): New function, factored out from:
21864 (copy_action): Use it. Removed now unused `match', `ended',
21865 `cplus_comment'.
21866 (copy_guard): Likewise.
21867
21868 2000-03-17 Akim Demaille <akim@epita.fr>
21869
21870 * src/reader.c (copy_string): New function, factored out from:
21871 (copy_action): Use it.
21872 (copy_guard): Likewise.
21873
21874 2000-03-17 Akim Demaille <akim@epita.fr>
21875
21876 Change the handling of @s so that they behave exactly like $s.
21877 There is now a pseudo variable @$ (readble and writable), location
21878 of the lhs of the rule (by default ranging from the location of
21879 the first symbol of the rhs, to the location of the last symbol,
21880 or, if the rhs is empty, YYLLOC).
21881
21882 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
21883 yyval.
21884 (yyparse): When providing a default semantic action, provide a
21885 default location action.
21886 (after the $): No longer change `*YYLSP', just stack YYLOC the
21887 same way you stack YYVAL.
21888 * src/reader.c (read_declarations): Use warns.
21889 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
21890 (copy_action, case '@'): Likewise.
21891 Use a standard error message, to save useless work from
21892 translators.
21893
21894 2000-03-17 Akim Demaille <akim@epita.fr>
21895
21896 * src/bison.s1: Formatting and cosmetics changes.
21897 * src/reader.c: Likewise.
21898 Update the Copyright notice.
21899
21900 2000-03-17 Akim Demaille <akim@epita.fr>
21901
21902 * src/bison.s1 (#line): All set to `#line' only, since the
21903 Makefile now handles them.
21904
21905 2000-03-16 Akim Demaille <akim@epita.fr>
21906
21907 * src/output.c (output_rule_data): Output the documentation of
21908 some of the tables.
21909 (Copyright notice): Update.
21910 Formatting changes.
21911
21912 2000-03-16 Akim Demaille <akim@epita.fr>
21913
21914 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
21915 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
21916 One `#if YYDEBUG' remains, since it uses variables which are
21917 defined only if `YYDEBUG != 0'.
21918
21919 2000-03-16 Akim Demaille <akim@epita.fr>
21920
21921 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
21922 and related variables so that the similarities are highlighted.
21923
21924 2000-03-16 Akim Demaille <akim@epita.fr>
21925
21926 * src/bison.s1: Properly indent CPP directives.
21927
21928 2000-03-16 Akim Demaille <akim@epita.fr>
21929
21930 * src/bison.s1: Properly indent the `alloca' CPP section.
21931
21932 2000-03-16 Akim Demaille <akim@epita.fr>
21933
21934 Do not hard code values of directories in `configure.in'.
21935 Update the `configure' tool chain.
21936
21937 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
21938 src/makefile.am.
21939 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
21940 (AC_OUTPUT): Add m4/Makefile.
21941 Bump to bison 1.28a, 1.29 has never been released.
21942 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
21943 handled via src/Makefile.am.
21944 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
21945 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
21946 autoheader.
21947 * Makefile.am (SUBDIRS): Add m4.
21948 (ACLOCAL_AM_FLAGS): New variable.
21949 (AUTOMAKE_OPTIONS): Add check-news.
21950 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
21951 the proper line number and file name.
21952 (DEFS): Propagate the location of bison library files and of the
21953 locale files.
21954 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
21955 builddir.
21956 * acinclude.m4: Remove, replaced by the directory m4.
21957 * m4/Makefile.am (EXTRA_DIST): New variable.
21958 * m4/gettext.m4: New file, from the fileutils.
21959 * m4/lcmessage.m4: Likewise
21960 * m4/progtest.m4: Likewise.
21961 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
21962
21963 2000-03-10 Akim Demaille <akim@epita.fr>
21964
21965 * src/closure.c:
21966 Formatting changes of various comments.
21967 Respect the GNU coding standards at various places.
21968 Don't use `_()' when no translation is needed.
21969
21970 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21971
21972 * src/files.c:
21973 OS/2 honors TMPDIR environment variable.
21974
21975 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21976
21977 * doc/bison.texinfo: Tweaked spelling and grammar.
21978 Updated ISBN.
21979 Removed reference to price of printed copy.
21980 Mention BISON_SIMPLE and BISON_HAIRY.
21981
21982 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21983
21984 * configure.in, NEWS:
21985 Bison 1.29 released.
21986
21987 1999-10-27 Jesse Thilo <jthilo@gnu.org>
21988
21989 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
21990 Added reference card.
21991
21992 1999-07-26 Jesse Thilo <jthilo@gnu.org>
21993
21994 * po/ru.po: Added Russian translation.
21995
21996 1999-07-26 Jesse Thilo <jthilo@gnu.org>
21997
21998 * configure.in: Added Russian translation.
21999
22000 1999-07-06 Jesse Thilo <jthilo@gnu.org>
22001
22002 * configure.in, NEWS, README:
22003 Released version 1.28.
22004
22005 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22006
22007 * src/system.h:
22008 Squashed redefinition warning on some systems.
22009
22010 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
22011 Have configure build version string instead of relying on ANSI string
22012 concatentation.
22013
22014 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22015
22016 * po/POTFILES.in: Got rid of version.c.
22017
22018 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22019
22020 * acconfig.h, configure.in:
22021 Have configure build version string instead of relying on ANSI string
22022 concatentation.
22023
22024 1999-06-08 Jesse Thilo <jthilo@gnu.org>
22025
22026 * doc/bison.1:
22027 Dropped mention of `+' for long-named options.
22028
22029 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22030
22031 * src/files.c: Added <unistd.h> for unlink().
22032
22033 * src/Makefile.am, src/system.h:
22034 I18n fixes.
22035
22036 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22037
22038 * README: Added a FAQ list.
22039
22040 * configure.in, acconfig.h:
22041 I18n fixes.
22042
22043 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22044
22045 * doc/FAQ, doc/Makefile.am:
22046 Added a FAQ list.
22047
22048 1999-05-19 Jesse Thilo <jthilo@gnu.org>
22049
22050 * src/alloc.h, src/symtab.h, src/version.c:
22051 Protected inclusion of "config.h" with HAVE_CONFIG_H.
22052
22053 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22054
22055 * src/.cvsignore, src/Makefile.am:
22056 Reorganized: sources in `src', documentation in `doc'.
22057
22058 * src/lex.c (literalchar):
22059 fixed the code for escaping double quotes (thanks
22060 Jonathan Czisny.)
22061
22062 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22063
22064 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
22065 Adjusted paths to reflect directory reorganization.
22066
22067 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22068
22069 * doc/.cvsignore, doc/Makefile.am:
22070 Reorganized: sources in `src', documentation in `doc'.
22071
22072 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22073
22074 * configure.in:
22075 Updated AC_INIT file to reflect directory reorganization.
22076
22077 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
22078 Reorganized: sources in `src', documentation in `doc'.
22079
22080 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22081
22082 * src/allocate.c:
22083 Don't declare calloc() and realloc() if not necessary.
22084
22085 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22086
22087 * configure.in, acconfig.h, acinclude.m4:
22088 Don't declare calloc() and realloc() if not necessary.
22089
22090 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22091
22092 * po/.cvsignore: Added i18n support.
22093
22094 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22095
22096 * acconfig.h, configure.in, Makefile.am:
22097 Added i18n support.
22098
22099 1999-03-22 Jesse Thilo <jthilo@gnu.org>
22100
22101 * src/bison.s1: Fixed #line numbers.
22102
22103 1999-03-15 Jesse Thilo <jthilo@gnu.org>
22104
22105 * po/es.po, po/fr.po, po/nl.po, po/de.po:
22106 Added PO files from Translation Project.
22107
22108 1999-03-03 Jesse Thilo <jthilo@gnu.org>
22109
22110 * Makefile.am:
22111 Added support for non-ANSI compilers (ansi2knr).
22112
22113 1999-02-16 Jesse Thilo <jthilo@gnu.org>
22114
22115 * configure.in: Bumped version number to 1.27.
22116
22117 * Makefile.am:
22118 Added `bison.simple' to list of files removed by `make distclean'.
22119
22120 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22121
22122 * src/files.c, src/files.h:
22123 Defined locations of parser files in config.h instead of Makefile.
22124
22125 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22126
22127 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
22128 Defined locations of parser files in config.h instead of Makefile.
22129
22130 1999-02-09 Jesse Thilo <jthilo@gnu.org>
22131
22132 * Makefile.am:
22133 Removed inappropriate use of $< macro.
22134
22135 1999-02-05 Jesse Thilo <jthilo@gnu.org>
22136
22137 * po/Makefile.in.in, po/POTFILES.in:
22138 Add `po' directory skeleton.
22139
22140 1999-01-27 Jesse Thilo <jthilo@gnu.org>
22141
22142 * README: Document help-bison list.
22143
22144 * configure.in: Add check for mkstemp().
22145
22146 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22147
22148 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
22149 Hush a few compiler warnings.
22150
22151 * src/files.c:
22152 Add tryclose(), which verifies that fclose was successful.
22153 Hush a couple of compiler warnings.
22154
22155 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22156
22157 * Makefile.am, OChangeLog:
22158 ChangeLog is now automatically generated. Include the old version as
22159 OChangeLog.
22160
22161 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22162
22163 * 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:
22164 Update FSF address.
22165
22166 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22167
22168 * doc/bison.texinfo: Fix formatting glitch.
22169
22170 * doc/bison.texinfo: Update FSF address.
22171
22172 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22173
22174 * acconfig.h: Update FSF address.
22175
22176 1999-01-08 Jesse Thilo <jthilo@gnu.org>
22177
22178 * src/system.h:
22179 Don't define PACKAGE here, since config.h defines it.
22180
22181 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22182
22183 * src/reader.c: Update copyright date.
22184
22185 * src/main.c:
22186 Ditch sprintf to statically-sized buffers in fatal/warn functions in
22187 favor of output directly to stderr (avoids buffer overruns).
22188
22189 * src/reader.c: Some checks for premature EOF.
22190
22191 * 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:
22192 Use prototypes if the compiler understands them.
22193
22194 * src/files.c: Honor TMPDIR on Unix hosts.
22195 Use prototypes if the compiler understands them.
22196
22197 * src/reader.c:
22198 Fix a couple of buffer overrun bugs.
22199 Use prototypes if the compiler understands them.
22200
22201 * src/system.h: Include unistd.h and ctype.h.
22202 Use #ifdef instead of #if for NLS symbols.
22203
22204 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22205
22206 * doc/bison.texinfo:
22207 Delete comment "consider using @set for edition number, etc..." since
22208 we now are doing so.
22209
22210 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22211
22212 * configure.in:
22213 Use prototypes if the compiler understands them.
22214
22215 * NEWS: Document 1.26 highlights.
22216
22217 * Makefile.am: Require Automake 1.3 or later.
22218
22219 * acconfig.h:
22220 Use prototypes if the compiler understands them.
22221
22222 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22223
22224 * src/version.c:
22225 Use VERSION symbol from automake for version number.
22226
22227 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22228
22229 * acconfig.h, configure.in, version.cin:
22230 Use VERSION symbol from automake for version number.
22231
22232 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22233
22234 * Makefile.am:
22235 Distribute original version of simple parser (bison.s1), not built
22236 version (bison.simple).
22237
22238 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22239
22240 * doc/bison.texinfo: Add info dir entry.
22241
22242 * doc/bison.texinfo:
22243 Let automake put version number into documentation.
22244
22245 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22246
22247 * src/bison.cld, src/build.com, src/vmshlp.mar:
22248 Add non-RCS files from /gd/gnu/bison.
22249
22250 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22251
22252 * doc/bison.1:
22253 Document the BISON_HAIRY and BISON_SIMPLE variables.
22254
22255 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22256
22257 * src/version.c: Build version.c automatically.
22258
22259 * src/reader.c:
22260 Fix token numbering (used to start at 258, not 257).
22261
22262 * src/system.h: Include config.h.
22263
22264 * src/getargs.c: Update bug report address.
22265
22266 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
22267 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
22268
22269 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22270
22271 * Makefile.am:
22272 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22273
22274 * configure.in, version.cin:
22275 Build version.c automatically.
22276
22277 * AUTHORS: Add AUTHORS file.
22278
22279 * README: Update bug report address.
22280
22281 * bison.simple:
22282 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22283
22284 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
22285 Add automake stuff.
22286
22287 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22288
22289 * doc/bison.texinfo: Clean up some formatting.
22290
22291 1998-05-05 Richard Stallman <rms@gnu.org>
22292
22293 * doc/bison.texinfo:
22294 Explain better why to make a pure parser.
22295
22296 1998-01-05 Richard Stallman <rms@gnu.org>
22297
22298 * src/files.c (openfiles):
22299 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
22300 find a temporary directory, if possible. Do not unlink files while
22301 they are open.
22302
22303 1997-08-25 Richard Stallman <rms@gnu.org>
22304
22305 * src/reader.c (stack_offset;):
22306 Change some warni to warns.
22307
22308 * src/lex.c (literalchar): Use warns, not warni.
22309
22310 1997-06-28 Richard Stallman <rms@gnu.org>
22311
22312 * src/bison.s1: Add a Bison version comment.
22313
22314 * src/main.c (fatal, warn, berror):
22315 Use program_name.
22316
22317 1997-06-28 Richard Stallman <rms@gnu.org>
22318
22319 * Makefile.in (bison_version): New variable.
22320 (dist): Use that variable.
22321 (bison.s1): Substitute the Bison version into bison.simple.
22322
22323 * bison.simple: Add a Bison version comment.
22324
22325 1997-06-18 Richard Stallman <rms@gnu.org>
22326
22327 * src/main.c (fatal, warn, berror):
22328 Make error messages standard.
22329 (toomany): Improve error message text.
22330
22331 * 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:
22332 new.h renamed to alloc.h.
22333
22334 1997-06-18 Richard Stallman <rms@gnu.org>
22335
22336 * Makefile.in: new.h renamed to alloc.h.
22337
22338 1997-05-24 Richard Stallman <rms@gnu.org>
22339
22340 * src/lex.c (literalchar):
22341 Fix the code for escaping \, " and '.
22342
22343 (lex): Avoid trouble when there are many chars
22344 to discard in a char literal with just several chars in it.
22345
22346 1997-05-17 Richard Stallman <rms@gnu.org>
22347
22348 * src/bison.s1:
22349 Use malloc, if using alloca is troublesome.
22350 (YYSTACK_USE_ALLOCA): New flag macro.
22351 Define it for some systems and compilers.
22352 (YYSTACK_ALLOC): New macro.
22353 (yyparse): Use YYSTACK_ALLOC to allocate stack.
22354 If it was malloc'd, free it.
22355
22356 1997-05-17 Richard Stallman <rms@gnu.org>
22357
22358 * bison.simple:
22359 Use malloc, if using alloca is troublesome.
22360 (YYSTACK_USE_ALLOCA): New flag macro.
22361 Define it for some systems and compilers.
22362 (YYSTACK_ALLOC): New macro.
22363 (yyparse): Use YYSTACK_ALLOC to allocate stack.
22364 If it was malloc'd, free it.
22365
22366 1997-04-23 Richard Stallman <rms@gnu.org>
22367
22368 * src/bison.s1:
22369 (alloca) [__hpux]: Always define as __builtin_alloca.
22370
22371 1997-04-23 Richard Stallman <rms@gnu.org>
22372
22373 * bison.simple:
22374 (alloca) [__hpux]: Always define as __builtin_alloca.
22375
22376 1997-04-22 Richard Stallman <rms@gnu.org>
22377
22378 * src/bison.s1:
22379 [__hpux]: Include alloca.h (right for HPUX 10)
22380 instead of declaring alloca (right for HPUX 9).
22381
22382 * src/bison.s1 (__yy_memcpy):
22383 Declare arg `count' as unsigned int.
22384 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
22385
22386 1997-04-22 Richard Stallman <rms@gnu.org>
22387
22388 * bison.simple:
22389 [__hpux]: Include alloca.h (right for HPUX 10)
22390 instead of declaring alloca (right for HPUX 9).
22391
22392 * bison.simple (__yy_memcpy):
22393 Declare arg `count' as unsigned int.
22394 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
22395
22396 1997-01-03 Richard Stallman <rms@gnu.org>
22397
22398 * src/allocate.c: [__STDC__ or _MSC_VER]:
22399 Declare calloc and realloc to return void *.
22400
22401 1997-01-02 Richard Stallman <rms@gnu.org>
22402
22403 * src/system.h:
22404 [_MSC_VER]: Include stdlib.h and process.h.
22405 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
22406
22407 * src/main.c (main): Return FAILURE as a value.
22408 (printable_version): Declare arg as int, not char.
22409
22410 1997-01-02 Richard Stallman <rms@gnu.org>
22411
22412 * Makefile.in (dist):
22413 Explicitly check for symlinks, and copy them.
22414
22415 1996-12-19 Richard Stallman <rms@gnu.org>
22416
22417 * src/files.c:
22418 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
22419
22420 1996-12-18 Paul Eggert <eggert@gnu.org>
22421
22422 * src/bison.s1 (yyparse):
22423 If __GNUC__ and YYPARSE_PARAM are both defined,
22424 declare yyparse to have a void * argument.
22425
22426 1996-12-18 Paul Eggert <eggert@gnu.org>
22427
22428 * bison.simple (yyparse):
22429 If __GNUC__ and YYPARSE_PARAM are both defined,
22430 declare yyparse to have a void * argument.
22431
22432 1996-12-17 Richard Stallman <rms@gnu.org>
22433
22434 * src/reduce.c (nbits): Add some casts.
22435
22436 1996-08-12 Richard Stallman <rms@gnu.org>
22437
22438 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
22439
22440 1996-08-12 Richard Stallman <rms@gnu.org>
22441
22442 * bison.simple: Test _MSDOS as well as _MSDOS_.
22443
22444 1996-07-31 Richard Stallman <rms@gnu.org>
22445
22446 * src/bison.s1:
22447 [__sun && __i386]: Include alloca.h.
22448
22449 1996-07-31 Richard Stallman <rms@gnu.org>
22450
22451 * bison.simple:
22452 [__sun && __i386]: Include alloca.h.
22453
22454 1996-07-30 Richard Stallman <rms@gnu.org>
22455
22456 * src/bison.s1: Comment change.
22457
22458 * src/bison.s1: Test _MSDOS_, not MSDOS.
22459
22460 1996-07-30 Richard Stallman <rms@gnu.org>
22461
22462 * bison.simple: Comment change.
22463
22464 * bison.simple: Test _MSDOS_, not MSDOS.
22465
22466 1996-06-01 Richard Stallman <rms@gnu.org>
22467
22468 * 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:
22469 Insert `_' macro around many string constants.
22470
22471 * src/main.c:
22472 Insert `_' macro around many string constants.
22473
22474 (main): Call setlocale, bindtextdomain and textdomain.
22475
22476 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
22477 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
22478 [ENABLE_NLS]: Include libintl.h.
22479 [ENABLE_NLS] (gettext): Define.
22480 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
22481 (N_, PACKAGE, LOCALEDIR): New macros.
22482
22483 1996-06-01 Richard Stallman <rms@gnu.org>
22484
22485 * POTFILES.in: New file.
22486
22487 * Makefile.in (allocate.o):
22488 Define target explicitly.
22489
22490 * Makefile.in (CFLAGS): Set to @CFLAGS@.
22491 (LDFLAGS): Set to @LDFLAGS@.
22492 (configure): Run autoconf only if preceding `cd' succeeds.
22493 (bison.s1): Redirect output to temporary file then move the
22494 temporary to the target, rather than redirecting directly to bison.s1.
22495 (clean): Remove config.status and config.log.
22496 (distclean): Don't remove config.status here.
22497
22498 1996-05-12 Richard Stallman <rms@gnu.org>
22499
22500 * src/bison.s1:
22501 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
22502
22503 1996-05-12 Richard Stallman <rms@gnu.org>
22504
22505 * bison.simple:
22506 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
22507
22508 1996-05-11 Richard Stallman <rms@gnu.org>
22509
22510 * src/bison.s1 (__yy_memcpy):
22511 Really reorder the args, as was supposedly done on Feb 14 1995.
22512 (yyparse): Calls changed accordingly.
22513
22514 1996-05-11 Richard Stallman <rms@gnu.org>
22515
22516 * Makefile.in (dist): Don't use $(srcdir).
22517
22518 * bison.simple (__yy_memcpy):
22519 Really reorder the args, as was supposedly done on Feb 14 1995.
22520 (yyparse): Calls changed accordingly.
22521
22522 1996-01-27 Richard Stallman <rms@gnu.org>
22523
22524 * src/output.c (output_rule_data):
22525 Test YYERROR_VERBOSE in the conditional
22526 around the definition of ttyname.
22527
22528 1995-12-29 Richard Stallman <rms@gnu.org>
22529
22530 * src/bison.s1:
22531 Fix line numbers in #line commands.
22532
22533 1995-12-29 Richard Stallman <rms@gnu.org>
22534
22535 * bison.simple:
22536 Fix line numbers in #line commands.
22537
22538 1995-12-27 Richard Stallman <rms@gnu.org>
22539
22540 * src/bison.s1 (YYPARSE_PARAM_DECL):
22541 In C++, make it always null.
22542 (YYPARSE_PARAM_ARG): New macro.
22543 (yyparse): Use YYPARSE_PARAM_ARG.
22544
22545 1995-12-27 Richard Stallman <rms@gnu.org>
22546
22547 * bison.simple (YYPARSE_PARAM_DECL):
22548 In C++, make it always null.
22549 (YYPARSE_PARAM_ARG): New macro.
22550 (yyparse): Use YYPARSE_PARAM_ARG.
22551
22552 1995-11-29 Richard Stallman <rms@gnu.org>
22553
22554 * doc/bison.texinfo:
22555 Describe literal string tokens, %raw, %no_lines, %token_table.
22556
22557 1995-11-29 Daniel Hagerty <hag@gnu.org>
22558
22559 * doc/bison.texinfo: Fixed update date
22560
22561 1995-10-16 Richard Stallman <rms@gnu.org>
22562
22563 * src/version.c: Version 1.25.
22564
22565 1995-10-16 Richard Stallman <rms@gnu.org>
22566
22567 * NEWS: *** empty log message ***
22568
22569 1995-10-16 Richard Stallman <rms@gnu.org>
22570
22571 * doc/bison.1, doc/bison.rnh:
22572 Add new options.
22573
22574 1995-10-15 Richard Stallman <rms@gnu.org>
22575
22576 * src/vmsgetargs.c, src/getargs.c:
22577 Added -n, -k, and -raw switches.
22578 (noparserflag, toknumflag, rawtoknumflag): New variables.
22579
22580 * src/symtab.h (SALIAS):
22581 New #define for adding aliases to %token.
22582 (struct bucket): Added `alias' field.
22583
22584 * src/reduce.c (reduce_grammar):
22585 Revise error message.
22586 (print_notices): Remove final `.' from error message.
22587
22588 * src/reader.c (reader_output_yylsp):
22589 New function.
22590 (readgram): Use `#if 0' around code that accepted %command
22591 inside grammar rules: The documentation doesn't allow it,
22592 and it will fail since the %command processors scan for the next %.
22593 (parse_token_decl): Extended the %token
22594 declaration to allow a multi-character symbol as an alias.
22595 (parse_thong_decl): New function.
22596 (read_declarations): Added %thong declarations.
22597 (read_declarations): Handle NOOP to deal with allowing
22598 % declarations as another means to specify the flags.
22599 (readgram): Allow %prec prior to semantics embedded in a rule.
22600 (skip_to_char, read_declarations, copy_definition)
22601 (parse_token_decl, parse_start_decl, parse_type_decl)
22602 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
22603 (get_type_name, copy_guard, copy_action, readgram)
22604 (get_type, packsymbols): Revised most error messages.
22605 Changed `fatal' to `warnxxx' to avoid aborting for error.
22606 Revised and use multiple warnxxx functions to avoid using VARARGS1.
22607 (read_declarations): Improve the error message for
22608 an invalid character. Do not abort.
22609 (read_declarations, copy_guard, copy_action): Use
22610 printable_version to avoid unprintable characters in printed output.
22611 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
22612 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
22613 Allow the type of a non-terminal can be given
22614 more than once, as long as all specifications give the same type.
22615
22616 * src/output.c:
22617 (output_headers, output_trailers, output, output_gram)
22618 (output_rule_data): Implement noparserflag variable.
22619 Implement toknumflag variable.
22620 (output): Call reader_output_yylsp to output LTYPESTR.
22621
22622 * src/main.c (main):
22623 If reader sees an error, don't process the grammar.
22624 (fatals): Updated to not use VARARGS1.
22625 (printable_version, int_to_string, warn, warni, warns, warnss)
22626 (warnsss): New error reporting functions. Avoid abort for error.
22627
22628 * src/lex.h:
22629 Added THONG and NOOP for alias processing.
22630 Added SETOPT for the new code that allows setting options with %flags.
22631
22632 * src/lex.c:
22633 Include getopt.h. Add some extern decls.
22634 (safegetc): New function to deal with EOF gracefully.
22635 (literalchar); new function to deal with reading \ escapes.
22636 (lex): Use literalchar.
22637 (lex): Implemented "..." tokens.
22638 (literalchar, lex, parse_percent_token): Made tokenbuffer
22639 always contain the token. This includes growing the token
22640 buffer while reading an integer.
22641 (parse_percent_token): Replaced if-else statement with percent_table.
22642 (parse_percent_token): Added % declarations as another
22643 way to specify the flags -n, -l, and -r. Also added hooks for
22644 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
22645 major changes to files.c.
22646 (lex) Retain in the incoming stream a character following
22647 an incorrect '/'.
22648 (skip_white_space, lex): Revised most error messages
22649 and changed fatal to warn to avoid aborting.
22650 (percent_table): Added %thong declarations.
22651
22652 * src/gram.h: Comment changes.
22653
22654 * src/files.c (openfiles, open_extra_files, done):
22655 Add faction flag
22656 and actfile file. Handle noparserflag. Both for -n switch.
22657
22658 * src/conflicts.c (resolve_sr_conflict):
22659 Remove use of alloca.
22660
22661 1995-06-01 Jim Meyering <meyering@gnu.org>
22662
22663 * doc/bison.texinfo: *** empty log message ***
22664
22665 1995-05-06 Richard Stallman <rms@gnu.org>
22666
22667 * src/bison.s1: Comment change.
22668
22669 1995-05-06 Richard Stallman <rms@gnu.org>
22670
22671 * bison.simple: Comment change.
22672
22673 1995-05-03 Richard Stallman <rms@gnu.org>
22674
22675 * src/version.c: Version now 1.24.
22676
22677 * src/bison.s1: Change distribution terms.
22678
22679 * src/version.c: Version now 1.23.
22680
22681 1995-05-03 Richard Stallman <rms@gnu.org>
22682
22683 * doc/bison.texinfo:
22684 Rewrite "Conditions for Using Bison".
22685 Update version to 1.24.
22686
22687 1995-05-03 Richard Stallman <rms@gnu.org>
22688
22689 * bison.simple: Change distribution terms.
22690
22691 1995-02-23 Richard Stallman <rms@gnu.org>
22692
22693 * src/files.c: Test __VMS_POSIX as well as VMS.
22694
22695 1995-02-14 Jim Meyering <meyering@gnu.org>
22696
22697 * src/bison.s1 (__yy_memcpy):
22698 Renamed from __yy_bcopy to avoid
22699 confusion. Reverse FROM and TO arguments to be consistent with
22700 those of memcpy.
22701
22702 1995-02-14 Jim Meyering <meyering@gnu.org>
22703
22704 * bison.simple (__yy_memcpy):
22705 Renamed from __yy_bcopy to avoid
22706 confusion. Reverse FROM and TO arguments to be consistent with
22707 those of memcpy.
22708
22709 1994-11-10 David J. MacKenzie <djm@gnu.org>
22710
22711 * NEWS: reformat
22712
22713 * NEWS: New file.
22714
22715 * Makefile.in (DISTFILES): Include NEWS.
22716
22717 * Makefile.in (DISTFILES):
22718 Include install-sh, not install.sh.
22719
22720 * configure.in: Update to Autoconf v2 macro names.
22721
22722 1994-10-05 David J. MacKenzie <djm@gnu.org>
22723
22724 * Makefile.in: fix typo
22725
22726 * Makefile.in (prefix, exec_prefix):
22727 Let configure set them.
22728
22729 1994-09-28 David J. MacKenzie <djm@gnu.org>
22730
22731 * Makefile.in: Set datadir to $(prefix)/share.
22732
22733 1994-09-15 Richard Stallman <rms@gnu.org>
22734
22735 * src/bison.s1:
22736 Update copyright notice and GPL version.
22737
22738 1994-09-15 Richard Stallman <rms@gnu.org>
22739
22740 * bison.simple:
22741 Update copyright notice and GPL version.
22742
22743 1994-07-12 Richard Stallman <rms@gnu.org>
22744
22745 * src/reduce.c, src/reader.c:
22746 entered into RCS
22747
22748 1994-05-05 David J. MacKenzie <djm@gnu.org>
22749
22750 * Makefile.in: entered into RCS
22751
22752 1994-03-26 Richard Stallman <rms@gnu.org>
22753
22754 * src/bison.s1: entered into RCS
22755
22756 1994-03-26 Richard Stallman <rms@gnu.org>
22757
22758 * bison.simple: entered into RCS
22759
22760 1994-03-25 Richard Stallman <rms@gnu.org>
22761
22762 * src/main.c: entered into RCS
22763
22764 1994-03-24 Richard Stallman <rms@gnu.org>
22765
22766 * src/conflicts.c: entered into RCS
22767
22768 1994-01-02 Richard Stallman <rms@gnu.org>
22769
22770 * Makefile.in: *** empty log message ***
22771
22772 1993-11-21 Richard Stallman <rms@gnu.org>
22773
22774 * src/bison.s1: *** empty log message ***
22775
22776 1993-11-21 Richard Stallman <rms@gnu.org>
22777
22778 * doc/bison.texinfo: entered into RCS
22779
22780 * doc/bison.texinfo: *** empty log message ***
22781
22782 1993-11-21 Richard Stallman <rms@gnu.org>
22783
22784 * bison.simple: *** empty log message ***
22785
22786 1993-10-25 David J. MacKenzie <djm@gnu.org>
22787
22788 * doc/bison.texinfo: *** empty log message ***
22789
22790 1993-10-19 Richard Stallman <rms@gnu.org>
22791
22792 * src/bison.s1: *** empty log message ***
22793
22794 1993-10-19 Richard Stallman <rms@gnu.org>
22795
22796 * bison.simple: *** empty log message ***
22797
22798 1993-10-14 Richard Stallman <rms@gnu.org>
22799
22800 * src/bison.s1: *** empty log message ***
22801
22802 1993-10-14 Richard Stallman <rms@gnu.org>
22803
22804 * bison.simple: *** empty log message ***
22805
22806 1993-09-14 David J. MacKenzie <djm@gnu.org>
22807
22808 * doc/bison.texinfo: *** empty log message ***
22809
22810 1993-09-13 Noah Friedman <friedman@gnu.org>
22811
22812 * Makefile.in: *** empty log message ***
22813
22814 1993-09-10 Richard Stallman <rms@gnu.org>
22815
22816 * src/conflicts.c: *** empty log message ***
22817
22818 * src/system.h: entered into RCS
22819
22820 1993-09-10 Richard Stallman <rms@gnu.org>
22821
22822 * doc/bison.1: entered into RCS
22823
22824 1993-09-06 Noah Friedman <friedman@gnu.org>
22825
22826 * src/version.c: entered into RCS
22827
22828 1993-09-06 Noah Friedman <friedman@gnu.org>
22829
22830 * Makefile.in: *** empty log message ***
22831
22832 1993-07-30 David J. MacKenzie <djm@gnu.org>
22833
22834 * Makefile.in: *** empty log message ***
22835
22836 1993-07-24 Richard Stallman <rms@gnu.org>
22837
22838 * src/bison.s1: *** empty log message ***
22839
22840 1993-07-24 Richard Stallman <rms@gnu.org>
22841
22842 * bison.simple: *** empty log message ***
22843
22844 1993-07-08 David J. MacKenzie <djm@gnu.org>
22845
22846 * Makefile.in: *** empty log message ***
22847
22848 1993-07-04 Richard Stallman <rms@gnu.org>
22849
22850 * src/bison.s1: *** empty log message ***
22851
22852 1993-07-04 Richard Stallman <rms@gnu.org>
22853
22854 * bison.simple: *** empty log message ***
22855
22856 1993-06-26 David J. MacKenzie <djm@gnu.org>
22857
22858 * src/getargs.c: entered into RCS
22859
22860 1993-06-26 David J. MacKenzie <djm@gnu.org>
22861
22862 * doc/bison.texinfo: *** empty log message ***
22863
22864 * doc/bison.1: New file.
22865
22866 1993-06-25 Richard Stallman <rms@gnu.org>
22867
22868 * src/getargs.c: New file.
22869
22870 1993-06-16 Richard Stallman <rms@gnu.org>
22871
22872 * src/bison.s1: *** empty log message ***
22873
22874 1993-06-16 Richard Stallman <rms@gnu.org>
22875
22876 * bison.simple: *** empty log message ***
22877
22878 1993-06-03 Richard Stallman <rms@gnu.org>
22879
22880 * src/bison.s1: New file.
22881
22882 1993-06-03 Richard Stallman <rms@gnu.org>
22883
22884 * doc/bison.texinfo: *** empty log message ***
22885
22886 1993-06-03 Richard Stallman <rms@gnu.org>
22887
22888 * bison.simple: New file.
22889
22890 1993-05-19 Richard Stallman <rms@gnu.org>
22891
22892 * doc/bison.texinfo: New file.
22893
22894 1993-05-07 Noah Friedman <friedman@gnu.org>
22895
22896 * Makefile.in: *** empty log message ***
22897
22898 1993-04-28 Noah Friedman <friedman@gnu.org>
22899
22900 * src/reader.c: *** empty log message ***
22901
22902 1993-04-23 Noah Friedman <friedman@gnu.org>
22903
22904 * src/alloc.h: entered into RCS
22905
22906 1993-04-20 David J. MacKenzie <djm@gnu.org>
22907
22908 * src/version.c: *** empty log message ***
22909
22910 * src/files.c, src/allocate.c:
22911 entered into RCS
22912
22913 * src/reader.c: *** empty log message ***
22914
22915 * src/lex.c: entered into RCS
22916
22917 * src/conflicts.c: New file.
22918
22919 * src/symtab.c: entered into RCS
22920
22921 * src/alloc.h: New file.
22922
22923 * src/LR0.c: entered into RCS
22924
22925 1993-04-18 Noah Friedman <friedman@gnu.org>
22926
22927 * src/reader.c: New file.
22928
22929 * src/version.c: *** empty log message ***
22930
22931 1993-04-18 Noah Friedman <friedman@gnu.org>
22932
22933 * Makefile.in: *** empty log message ***
22934
22935 1993-04-17 Noah Friedman <friedman@gnu.org>
22936
22937 * Makefile.in: *** empty log message ***
22938
22939 1993-04-15 Richard Stallman <rms@gnu.org>
22940
22941 * src/main.c, src/files.c:
22942 New file.
22943
22944 1993-04-15 Noah Friedman <friedman@gnu.org>
22945
22946 * configure.in: entered into RCS
22947
22948 * configure.in: *** empty log message ***
22949
22950 * configure.in: New file.
22951
22952 1993-04-14 Richard Stallman <rms@gnu.org>
22953
22954 * Makefile.in: New file.
22955
22956 1993-04-13 Richard Stallman <rms@gnu.org>
22957
22958 * src/version.c: New file.
22959
22960 1993-03-25 Richard Stallman <rms@gnu.org>
22961
22962 * src/output.c: entered into RCS
22963
22964 1992-09-25 Richard Stallman <rms@gnu.org>
22965
22966 * configure.bat: entered into RCS
22967
22968 1992-06-22 Richard Stallman <rms@gnu.org>
22969
22970 * src/vmsgetargs.c: entered into RCS
22971
22972 1992-06-22 Richard Stallman <rms@gnu.org>
22973
22974 * doc/bison.rnh: entered into RCS
22975
22976 1992-04-20 David J. MacKenzie <djm@gnu.org>
22977
22978 * README: entered into RCS
22979
22980 1992-01-22 Richard Stallman <rms@gnu.org>
22981
22982 * src/machine.h: entered into RCS
22983
22984 1991-12-21 Richard Stallman <rms@gnu.org>
22985
22986 * src/lalr.c, src/closure.c:
22987 entered into RCS
22988
22989 1991-12-20 Richard Stallman <rms@gnu.org>
22990
22991 * src/state.h: entered into RCS
22992
22993 1991-12-18 Richard Stallman <rms@gnu.org>
22994
22995 * src/print.c, src/nullable.c, src/derives.c:
22996 entered into RCS
22997
22998 1991-11-03 David J. MacKenzie <djm@gnu.org>
22999
23000 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
23001 entered into RCS
23002
23003 1988-09-09 Richard Stallman <rms@gnu.org>
23004
23005 * src/bison.hairy: entered into RCS
23006
23007 1987-12-16 Richard Stallman <rms@gnu.org>
23008
23009 * REFERENCES: entered into RCS
23010
23011
23012 -----
23013
23014 Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
23015 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
23016 Free Software Foundation, Inc.
23017
23018 Copying and distribution of this file, with or without
23019 modification, are permitted provided the copyright notice and this
23020 notice are preserved.