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* src/getargs.c (long_options): Remove duplicates.
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12002-11-12 Akim Demaille <akim@epita.fr>
2
3 * src/getargs.c (long_options): Remove duplicates.
4 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
5 Remove.
6 * doc/bison.rnh: Remove.
7 * doc/bison.texinfo (VMS Invocation): Remove.
8
92002-11-12 Akim Demaille <akim@epita.fr>
10
11 * src/struniq.h, src/struniq.c (struniq_t): Is const.
12 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
13
14 Use struniq for symbols.
15
16 * src/symtab.h (symbol_t): The tag member is a struniq.
17 (symbol_type_set): Adjust.
18 * src/symtab.c (symbol_new): Takes a struniq.
19 (symbol_free): Don't free the tag member.
20 (hash_compare_symbol_t, hash_symbol_t): Rename as...
21 (hash_compare_symbol, hash_symbol): these.
22 Use the fact that tags as struniqs.
23 (symbol_get): Use struniq_new.
24 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
25 Returns a strniq.
26 * src/reader.h (merger_list, grammar_currentmerge_set): The name
27 and type members are struniqs.
28 * src/reader.c (get_merge_function)
29 (grammar_current_rule_merge_set): Adjust.
30 (TYPE, current_type): Are struniq.
31
32 Use struniq for file names.
33
34 * src/files.h, src/files.c (infile): Split into...
35 (grammar_file, current_file): these.
36 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
37 * src/reduce.c (reduce_print): Likewise.
38 * src/getargs.c (getargs): Likewise.
39 * src/complain.h, src/complain.c: Likewise.
40 * src/main.c (main): Call struniqs_new early enough to use it for
41 file names.
42 Don't free the input file name.
43
442002-11-12 Akim Demaille <akim@epita.fr>
45
46 * src/symtab.c (symbol_free): Remove dead deactivated code:
47 type_name are properly removed.
48 Don't use XFREE to free items that cannot be NULL.
49 * src/struniq.h, src/struniq.c: New.
50 * src/main.c (main): Initialize/free struniqs.
51 * src/parse-gram.y (%union): Add astruniq member.
52 (yyprint): Adjust.
53 * src/scan-gram.l (<{tag}>): Return a struniq.
54 Free the obstack bit that used to store it.
55 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
56
572002-11-11 Paul Eggert <eggert@twinsun.com>
58
59 Revamp to fix many (but not all) of the C- and M4-related quoting
60 problems. Among other things, this fixes the Bison bug reported
61 by Jan Hubicka when processing the Bash grammar; see:
62 <http://mail.gnu.org/pipermail/bison-patches/2002-November/001329.html>
63
64 Use new @ escapes consistently. Represent brackets with @{ and @}
65 rather than @<:@ and @:>@, since this works a bit better with dumb
66 editors like vi. Represent @ with @@, since @ is now consistently
67 an escape. Use @oline@ and @ofile@ rather than __oline__ and
68 __ofile__, to avoid unexpected expansions. Similarly, use @output
69 rather than #output.
70
71 * data/c.m4 (b4_copyright): Omit file name from comment, since
72 the file name could contain "*/".
73 (b4_synclines_flag): Don't quote the 2nd argument; it should already
74 be quoted. All uses changed.
75
76 * data/glr.c: Use new @ escapes consistently.
77 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
78 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
79 Remove, since they couldn't handle arbitrary characters in file
80 names.
81 * data/lalr1.cc: Likewise.
82 * data/yacc.c: Likewise.
83
84 * src/files.c (output_infix): Remove; all uses removed.
85 * src/files.h: Likewise.
86
87 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
88 mishandled funny characters in file names, and anyway it isn't
89 needed any more.
90 * data/yacc.c: Likewise.
91 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
92
93 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
94 * data/yacc.c: Likewise.
95
96 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
97 strings now.
98 (muscle_init): Quote filename as a C string.
99 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
100 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
101 * src/output.c (escaped_file_name_output): New function.
102 (prepare_symbols): Quote tokens for M4.
103 (prepare): Don't insert output_infix, output_prefix,
104 output_parser_name, output_header_name; this is now down by scan-skel.
105 Insert skeleton as a C string.
106
107 * src/output.c (user_actions_output, symbol_destructors_output,
108 symbol_printers_output): Quote filenames for C and M4.
109 * src/reader.c (prologue_augment, epilogue_set): Likewise.
110
111 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
112 escapes other than \\ and \'; this simplifies the code.
113 (<SC_STRING>): Likewise, for \\ and \".
114 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
115 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
116 Use new escapes @{ and @} for [ and ].
117
118 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
119 them with auto vars.
120 Switch to new escape scheme, where @ is the escape character uniformly.
121 Abort if a stray escape character is found. Avoid unbounded input
122 buffer when parsing non-escaped text.
123
124 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
125 __oline__, #output, $@, and @{ do not have unintended meanings.
126
1272002-11-09 Paul Eggert <eggert@twinsun.com>
128
129 Fix the test failure due to GCC warnings described in
130 <http://mail.gnu.org/pipermail/bug-bison/2002-November/001815.html>.
131 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
132 evaluate to 0 if it's impossible for NINF to be in the respective
133 table.
134 (yygetLRActions, yyrecoverParseError): Use them.
135
136 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
137 counted in the token inserted at end of file. Now takes
138 location_t *, not location_t, so that the location can be
139 adjusted. All uses changed.
140
141 * tests/regression.at (Invalid inputs): Adjust wording in
142 diagnostic to match the new behavior.
143
144 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
145 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
146 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
147 abort ();'. This reduces the runtime of the "Many lookaheads"
148 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
149 GCC 3.2.
150
1512002-11-07 Paul Eggert <eggert@twinsun.com>
152
153 * src/parse-gram.y (CHARACTER): Remove unused token.
154 All uses removed.
155
156 * src/scan-gram.l: Remove stack option. We no longer use the
157 stack, since the stack was never deeper than 1; instead, use the
158 new auto var c_context to record the stacked value.
159
160 Remove nounput option. At an unexpected end of file, we now unput
161 the minimal input necessary to end cleanly; this simplifies the
162 code.
163
164 Avoid unbounded token sizes where this is easy.
165
166 (unexpected_end_of_file): New function.
167 Use it to systematize the error message on unexpected EOF.
168 (last-string): Now auto, not static.
169 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
170 (scanner_last_string_free): Remove; not used.
171 (percent_percent_count): Move decl to just before use.
172 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
173 not the (never otherwised-used) CHARACTER.
174
1752002-11-07 Akim Demaille <akim@epita.fr>
176
177 Let yyerror always receive the msg as last argument, so that
178 yyerror can be variadic.
179
180 * data/yacc.c (b4_yyerror_args): New.
181 Use it when calling yyerror.
182 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
183 Use it when calling yyerror.
184 * doc/bison.texinfo (Error Reporting): Adjust.
185 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
186 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
187
1882002-11-06 Akim Demaille <akim@epita.fr>
189
190 #line should have quoted strings.
191 Ideally, this should be done by m4_quotearg.
192
193 * src/scan-skel.l: Include quotearg.h.
194 Quote __ofile__.
195 * src/output.c (symbol_printers_output)
196 (symbol_destructors_output): Quote the file name.
197
1982002-11-06 Akim Demaille <akim@epita.fr>
199
200 * tests/regression.at (Invalid inputs): Adjust to the recent
201 messages.
202
2032002-11-06 Akim Demaille <akim@epita.fr>
204
205 Restore --no-lines.
206 Reported by Jim Kent.
207
208 * data/c.m4 (b4_syncline): New.
209 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
210 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
211 * src/output.c (user_actions_output): Likewise.
212 (prepare): Define 'b4_synclines_flag'.
213 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
214
2152002-11-06 Akim Demaille <akim@epita.fr>
216
217 * src/main.c (main): Free `infile'.
218 * src/scan-gram.l (handle_syncline): New.
219 Recognize `#line'.
220 * src/output.c (user_actions_output, symbol_destructors_output)
221 (symbol_printers_output): Use the location's file name, not
222 infile.
223 * src/reader.c (prologue_augment, epilogue_set): Likewise.
224
2252002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
226
227 * src/tables.c (matching_state): Don't allow states to match if
228 either has GLR conflict entries.
229
2302002-11-05 Paul Eggert <eggert@twinsun.com>
231
232 * src/scan-gram.l: Use more accurate diagnostics, e.g.
233 "integer out of range" rather than "invalid value".
234 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
235 accordingly.
236
237 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
238 Also, remove one static variable in the scanner.
239
240 * src/scan-gram.l (braces_level): Now auto, not static.
241 Initialize to zero if the compiler is being picky.
242 (INITIAL): Clear braces_level instead of incrementing it.
243 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
244 as POSIX 1003.1-2001 requires.
245 * src/system.h (IF_LINT): New macro, taken from coreutils.
246 * configure.ac: Define "lint" if --enable-gcc-warnings.
247
2482002-11-05 Akim Demaille <akim@epita.fr>
249
250 * src/scan-gram.l: When it starts with `%', complain about the
251 whole directive, not just that `invalid character: %'.
252
2532002-11-04 Akim Demaille <akim@epita.fr>
254
255 * Makefile.maint: Update from Autoconf.
256 (update, cvs-update, po-update, do-po-update): New.
257
2582002-11-04 Akim Demaille <akim@epita.fr>
259
260 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
261 and yyerror.
262 Have yyerror `use' its arguments.
263 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
264 returns true when location & yacc & pure & parse-param.
265 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
266
2672002-11-04 Akim Demaille <akim@epita.fr>
268
269 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
270 clashes.
271 * src/scan-gram.l: Use [\'] instead of ['] to pacify
272 font-lock-mode.
273 Use complain_at.
274 Use quote, not quote_n since LOCATION_PRINT no longer uses the
275 slot 0.
276
2772002-11-03 Paul Eggert <eggert@twinsun.com>
278
279 * src/reader.c (get_merge_function, grammar_current_rule_check):
280 Use consistent diagnostics for reporting type name clashes.
281 Quote the types with <>, for consistency with Yacc.
282 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
283
2842002-11-03 Akim Demaille <akim@epita.fr>
285
286 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
287 New.
288 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
289 (b4_parse_param): Remove.
290 Use b4_identification.
291 Propagate b4_pure_args where needed to pass them to yyerror.
292 * data/glr.m4 (b4_parse_param): Remove.
293 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
294 (b4_lpure_formals): New.
295 Use b4_identification.
296 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
297 b4_user_formals and b4_user_args.
298 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
299 (yyreportAmbiguity): When using a pure parser, also need
300 the location, and the parse-params.
301 Adjust callers.
302 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
303 When using a pure parser, also need the parse-params.
304 Adjust callers.
305 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
306 (%pure-parser + %parse-param) LALR and GLR parsers.
307 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
308 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
309 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
310 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
311 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
312 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
313 * doc/bison.texinfo: Untabify the whole file.
314 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
315 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
316 (Error Reporting): Adjust to these new directives.
317 Document %error-verbose, deprecate YYERROR_VERBOSE.
318
3192002-11-03 Akim Demaille <akim@epita.fr>
320
321 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
322 AT_CHECK_CALC_GLR invocations to use % directives, instead of
323 command line options.
324 * tests/cxx-type.at: Formatting changes.
325
3262002-11-03 Paul Eggert <eggert@twinsun.com>
327
328 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
329 to count columns correctly, and to check for invalid inputs.
330
331 Use mbsnwidth to count columns correctly. Account for tabs, too.
332 Include mbswidth.h.
333 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
334 (extend_location): New function.
335 (YY_LINES): Remove.
336
337 Handle CRLF in C code rather than in Lex code.
338 (YY_INPUT): New macro.
339 (no_cr_read): New function.
340
341 Scan UCNs, even though we don't fully handle them yet.
342 (convert_ucn_to_byte): New function.
343
344 Handle backslash-newline correctly in C code.
345 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
346 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
347 all uses changed.
348 (tag, splice): New EREs. Do not allow NUL or newline in tags.
349 Use {splice} wherever C allows backslash-newline.
350 YY_STEP after space, newline, vertical-tab.
351 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
352
353 (letter, id): Don't assume ASCII; e.g., spell out a-z.
354
355 ({int}, handle_action_dollar, handle_action_at): Check for integer
356 overflow.
357
358 (YY_STEP): Omit trailing semicolon, so that it's more like C.
359
360 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
361 as well as \000. Check for UCHAR_MAX, not 255.
362 Allow \x with an arbitrary positive number of digits, as in C.
363 Check for overflow here.
364 Allow \? and UCNs, for compatibility with C.
365
366 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
367 with quote slot used by complain_at.
368
369 * tests/input.at: Add tests for backslash-newline, m4 quotes
370 in symbols, long literals, and funny escapes in strings.
371
372 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
373 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
374 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
375 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
376 * m4/mbswidth.m4: New file, from GNU coreutils.
377
378 * doc/bison.texinfo (Grammar Outline): Document // comments.
379 (Symbols): Document that trigraphs have no special meaning in Bison,
380 nor is backslash-newline allowed.
381 (Actions): Document that trigraphs have no special meaning.
382
383 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
384 no longer used.
385
3862002-11-02 Paul Eggert <eggert@twinsun.com>
387
388 * src/reader.c: Don't include quote.h; not needed.
389 (get_merge_function): Reword warning to be consistent with
390 type clash diagnostic in grammar_current_rule_check.
391
392 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
393 bug in trigraph handling.
394
395 * src/output.c (prepare_symbols): When printing token names,
396 escape "[" as "@<:@" and likewise for "]".
397
398 * src/system.h (errno): Remove declaration, as we are now
399 assuming C89 or better, and C89 guarantees errno.
400
4012002-10-30 Paul Eggert <eggert@twinsun.com>
402
403 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
404 Check for close failures.
405 * src/files.h (xfclose): Return void, not int, since it always
406 returned zero.
407 * src/files.c (xfclose): Likewise. Report I/O error if ferror
408 indicates one.
409 * src/output.c (output_skeleton): Use xfclose rather than fclose
410 and ferror. xfclose now checks ferror.
411
412 * data/glr.c (YYLEFTMOST_STATE): Remove.
413 (yyreportTree): Use a stack-based leftmost state. This avoids
414 our continuing battles with bogus warnings about initializers.
415
4162002-10-30 Akim Demaille <akim@epita.fr>
417
418 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
419 #if.
420
4212002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
422
423 * tests/glr-regr1.at: New test for reported regressions.
424 * tests/testsuite.at: Add glr-regr1.at test.
425 * tests/Makefile.am: Add glr-regr1.at test.
426
4272002-10-24 Paul Eggert <eggert@twinsun.com>
428
429 Version 1.75a.
430
431 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
432 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
433 we use malloc. Don't assume 'A' through 'Z' are contiguous.
434 Don't assume strdup exists; POSIX says its an XSI extension.
435 Check for buffer overflow on input.
436
4372002-10-24 Akim Demaille <akim@epita.fr>
438
439 * src/output.c (output_skeleton): Don't disable M4sugar comments
440 too soon: it results in comments being expanded.
441 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
442 first output.
443
4442002-10-24 Akim Demaille <akim@epita.fr>
445
446 * data/yacc.c (m4_int_type): New.
447 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
448 char' as only yacc.c wants K&R portability.
449 * data/glr.c (yysigned_char): Remove.
450 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
451 Reported by Quoc Peyrot.
452
4532002-10-23 Paul Eggert <eggert@twinsun.com>
454
455 * src/main.c (main): With --trace=time, report times even if a
456 non-fatal error occurs. Formerly, the times were reported in some
457 such cases but not in others.
458 * src/reader.c (reader): Just return if a complaint has been issued,
459 instead of exiting, so that 'main' can report times.
460
4612002-10-22 Akim Demaille <akim@epita.fr>
462
463 * src/system.h: Include sys/types.
464 Reported by Bert Deknuydt.
465
4662002-10-23 Paul Eggert <eggert@twinsun.com>
467
468 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
469 Suggested by Art Haas.
470
4712002-10-22 Paul Eggert <eggert@twinsun.com>
472
473 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
474 decl; not needed any more.
475 * src/main.c (main): Use return to exit, undoing yesterday's change.
476 The last OS that we could find where this wouldn't work is
477 SunOS 3.5, and that's too old to worry about now.
478
479 * data/glr.c (struct yyltype): Define members even when not
480 doing locations. This is more consistent with yacc.c, and it
481 works around the following bug reports:
482 http://mail.gnu.org/pipermail/bug-bison/2002-October/001764.html
483 http://mail.gnu.org/pipermail/bug-bison/2002-October/001769.html
484 and I hope it also fixes this bug report:
485 http://mail.gnu.org/pipermail/bug-bison/2002-October/001748.html
486
487 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
488 @acronym consistently. Standardize on "Yacc" instead of "YACC",
489 "Algol" instead of "ALGOL". Give a bit more history about BNF.
490
4912002-10-22 Akim Demaille <akim@epita.fr>
492
493 * data/README: New.
494
4952002-10-21 Paul Eggert <eggert@twinsun.com>
496
497 Be consistent about 'bool'; the old code used an enum in one
498 module and an int in another, and this violates the C standard.
499 * m4/stdbool.m4: New file, from coreutils 4.5.3.
500 * configure.ac (AC_HEADER_STDBOOL): Add.
501 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
502 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
503 * src/symtab.c (hash_compare_symbol_t): Likewise.
504 * src/system.h (bool, false, true): Use a definition consistent
505 with ../lib/hash.c. All uses changed.
506
507 * src/complain.c (warning_issued): Renamed from warn_message_count,
508 so that we needn't worry about integer overflow (!).
509 Now of type bool. All uses changed.
510 (complaint_issued): Renamed from complain_message_count; likewise.
511
512 * src/main.c (main): Use exit to exit with failure.
513
514 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
515 rather than 1 and 0.
516 * src/main.c (main): Likewise.
517 * src/getargs.c (getargs): Likewise.
518 * src/reader.c (reader): Likewise.
519
520 * src/getarg.c (getargs): Remove duplicate code for
521 "Try `bison --help'".
522
523 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
524 What was that "2" for?
525
526 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
527 * src/getargs.c (usage): Likewise.
528
529 * src/getargs.c (getargs): When there are too few operands, report
530 the last one. When there are too many, report the first extra
531 one. This is how diffutils does it.
532
5332002-10-20 Paul Eggert <eggert@twinsun.com>
534
535 Remove K&R vestiges.
536 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
537 * src/complain.c (VA_START): Remove. Assume prototypes.
538 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
539 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
540 fatal): Assume prototypes.
541 * src/complain.h: Assume prototypes.
542 * src/system.h (PARAMS): Remove.
543 Include <limits.h> unconditionally, since it's guaranteeed even
544 for a freestanding C89 compiler.
545 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
546 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
547
5482002-10-20 Akim Demaille <akim@epita.fr>
549
550 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
551 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
552 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
553 (yyresolveStates, yyresolveAction, yyresolveStack)
554 (yyprocessOneStack): Use them.
555 (yy_reduce_print): New.
556 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
557
5582002-10-20 Akim Demaille <akim@epita.fr>
559
560 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
561 arguments and output `void'.
562 (b4_c_function): Rename as...
563 (b4_c_function_def): this.
564 (b4_c_function_decl, b4_c_ansi_function_def)
565 (b4_c_ansi_function_decl): New.
566 Change the interpretation of the arguments: before `int, foo', now
567 `int foo, foo'.
568 * data/yacc.c (yyparse): Prototype and define thanks to these.
569 Adjust b4_c_function_def uses.
570 * data/glr.c (yyparse): Likewise, but ANSI only.
571
5722002-10-20 Akim Demaille <akim@epita.fr>
573
574 * src/output.c (prepare): Move the definition of `tokens_number',
575 `nterms_number', `undef_token_number', `user_token_number_max'
576 to...
577 (prepare_tokens): Here.
578 (prepare_tokens): Rename as...
579 (prepare_symbols): this.
580 (prepare): Move the definition of `rules_number' to...
581 (prepare_rules): here.
582 (prepare): Move the definition of `last', `final_state_number',
583 `states_number' to...
584 (prepare_states): here.
585 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
586
5872002-10-20 Akim Demaille <akim@epita.fr>
588
589 * src/tables.h, src/tables.c, src/output.c: Comment changes.
590
5912002-10-20 Akim Demaille <akim@epita.fr>
592
593 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
594 * data/c.m4: here.
595
5962002-10-20 Akim Demaille <akim@epita.fr>
597
598 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
599 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
600 `pair'.
601 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
602 `name' to...
603 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
604 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
605 These.
606
6072002-10-19 Paul Eggert <eggert@twinsun.com>
608
609 Do not create a temporary file, as that involves security and
610 cleanup headaches. Instead, use a pair of pipes.
611 Derived from a suggestion by Florian Krohm.
612 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
613 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
614 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
615 (BISON_PREREQ_SUBPIPE): Add.
616 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
617 Add subpipe.h, subpipe.c.
618 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
619 * po/POTFILES.in: Add lib/subpipe.c.
620 * src/output.c: Include "subpipe.h".
621 (m4_invoke): Remove decl.
622 (scan_skel): New decl.
623 (output_skeleton): Use pipe rather than temporary file for m4 input.
624 Check that m4sugar.m4 is readable, to avoid deadlock.
625 Check for pipe I/O error.
626 * src/scan-skel.l (readpipe): Remove decl.
627 (scan_skel): New function, to be used in place of m4_invoke.
628 Read from stream rather than file.
629
630 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
631 float, as this generates a warning on Solaris 8 + GCC 3.2 with
632 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
633 this generates a more-accurate value anyway.
634
635 * lib/timevar.c (timervar_accumulate): Rename locals to
636 avoid confusion with similarly-named more-global.
637 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
638
639 * src/output.c (prepare): Use xstrdup to convert char const *
640 to char *, to avoid GCC warning.
641
6422002-10-19 Akim Demaille <akim@epita.fr>
643
644 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
645 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
646 Use them to have `calc.y' ready for %pure-parser.
647 * data/yacc.c (YYLEX): Pass a yylex return type to
648 b4_c_function_call.
649
6502002-10-19 Akim Demaille <akim@epita.fr>
651
652 Prototype support of %lex-param and %parse-param.
653
654 * src/parse-gram.y: Add the definition of the %lex-param and
655 %parse-param tokens, plus their rules.
656 Drop the `_' version of %glr-parser.
657 Add the "," token.
658 * src/scan-gram.l (INITIAL): Scan them.
659 * src/muscle_tab.c: Comment changes.
660 (muscle_insert, muscle_find): Rename `pair' as `probe'.
661 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
662 (muscle_entry_s): The `value' member is no longer const.
663 Adjust all dependencies.
664 * src/muscle_tab.c (muscle_init): Adjust: use
665 MUSCLE_INSERT_STRING.
666 Initialize the obstack earlier.
667 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
668 (muscle_pair_list_grow): New.
669 * data/c.m4 (b4_c_function_call, b4_c_args): New.
670 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
671 * tests/calc.at: Use %locations, not --locations.
672 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
673
6742002-10-19 Akim Demaille <akim@epita.fr>
675
676 * src/getargs.c (usage): Take status as argument and exit
677 accordingly.
678 Report the traditional `Try ... --help' message when status != 0.
679 (usage, version): Don't take a FILE * as arg, it is pointless.
680 (getargs): When there is an incorrect number of arguments, make it
681 an error, and report it GNUlically thanks to `usage ()'.
682
6832002-10-18 Paul Eggert <eggert@twinsun.com>
684
685 * data/glr.c (yyreportParseError): Don't assume that sprintf
686 yields the length of the printed string, as this is not true
687 on SunOS 4.1.4. Reported by Peter Klein.
688
689 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
690 * tests/conflicts.at (%nonassoc and eof): Likewise.
691 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
692
6932002-10-17 Akim Demaille <akim@epita.fr>
694
695 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
696 * src/getargs.c (trace_types, trace_args): Adjust.
697 * src/reader.c (grammar_current_rule_prec_set)
698 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
699 Standardize error messages.
700 And s/@prec/%prec/!
701 (reader): Use trace_flag to enable scanner/parser debugging,
702 instead of an adhoc scheme.
703 * src/scan-gram.l: Remove trailing debugging code.
704
7052002-10-16 Paul Eggert <eggert@twinsun.com>
706
707 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
708 MUSCLE_TAB_H.
709
710 * NEWS: Officially drop support for building Bison with K&R C,
711 since it didn't work anyway and it's not worth worrying about.
712 * Makefile.maint (wget_files): Remove ansi2knr.c.
713 (ansi2knr.c-url_prefix): Remove.
714 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
715 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
716 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
717
7182002-10-15 Paul Eggert <eggert@twinsun.com>
719
720 Stop using the "enum_" trick for K&R-style function definitions;
721 it confused me, and I was the author! Instead, assume that people
722 who want to use K&R C compilers (when using these modules in GCC,
723 perhaps?) will run ansi2knr.
724
725 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
726 All uses of "enum_" changed to "enum ".
727 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
728 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
729
730 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
731 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
732 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
733 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
734 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
735 abitset_not, abitset_ones, abitset_or, abitset_or_and,
736 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
737 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
738 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
739 Use function prototypes; this removes the need for declaring
740 static functions simply to provide their prototypes.
741 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
742 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
743 bitset_count_, bitset_create, bitset_dump, bitset_first,
744 bitset_free, bitset_init, bitset_last, bitset_next,
745 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
746 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
747 bitset_print, bitset_release_memory, bitset_toggle_,
748 bitset_type_choose, bitset_type_get, bitset_type_name_get,
749 debug_bitset): Likewise.
750 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
751 * lib/bitset_stats.c (bitset_log_histogram_print,
752 bitset_percent_histogram_print, bitset_stats_and,
753 bitset_stats_and_cmp, bitset_stats_and_or,
754 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
755 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
756 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
757 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
758 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
759 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
760 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
761 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
762 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
763 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
764 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
765 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
766 bitset_stats_zero): Likewise.
767 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
768 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
769 bitsetv_dump, debug_bitsetv): Likewise.
770 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
771 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
772 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
773 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
774 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
775 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
776 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
777 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
778 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
779 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
780 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
781 Likewise.
782 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
783 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
784 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
785 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
786 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
787 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
788 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
789 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
790 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
791 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
792 lbitset_xor_cmp, lbitset_zero): Likewise.
793
7942002-10-14 Akim Demaille <akim@epita.fr>
795
796 Version 1.75.
797
7982002-10-14 Akim Demaille <akim@epita.fr>
799
800 * tests/Makefile.am (maintainer-check-posix): New.
801
8022002-10-14 Akim Demaille <akim@epita.fr>
803
804 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
805 member.
806
8072002-10-14 Akim Demaille <akim@epita.fr>
808
809 * src/tables.c (table_ninf_remap): base -> tab.
810 Reported by Matt Rosing.
811
8122002-10-14 Paul Eggert <eggert@twinsun.com>
813
814 * tests/action.at, tests/calc.at, tests/conflicts.at,
815 tests/cxx-type.at, tests/headers.at, tests/input.at,
816 tests/regression.at, tests/synclines.at, tests/torture.at:
817 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
818 so that the tests still work even if POSIXLY_CORRECT is set.
819 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
820
821 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
822 for portability to K&R hosts. Fix typo: signed char is guaranteed
823 only to 127, not to 128.
824 * data/glr.c (yysigned_char): New type.
825 * data/yacc.c (yysigned_char): Likewise.
826 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
827
8282002-10-13 Paul Eggert <eggert@twinsun.com>
829
830 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
831 true due to limited range of data type" warning from GCC.
832
833 * data/c.m4 (b4_token_defines): Protect against double-inclusion
834 by wrapping enum yytokentype's definition inside #ifndef
835 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
836
8372002-10-13 Akim Demaille <akim@epita.fr>
838
839 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
840 Un yy- yyrhs to avoid the name clash with the global YYRHS.
841
8422002-10-13 Akim Demaille <akim@epita.fr>
843
844 * Makefile.maint: Update from Autoconf 2.54.
845 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
846
8472002-10-13 Akim Demaille <akim@epita.fr>
848
849 * src/print.c (print_state): Separate the list of solved conflicts
850 from the other items.
851 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
852
8532002-10-13 Akim Demaille <akim@epita.fr>
854
855 Let nondeterministic skeletons be usable with deterministic
856 tables.
857
858 With the patch, GAWK compiled by GCC without -O2 passes its test
859 suite using a GLR parser driven by LALR tables. It fails with -O2
860 because `struct stat' gives two different answers on my machine:
861 88 (definition of an auto var) and later 96 (memset on this var).
862 Hence the stack is badly corrumpted. The headers inclusion is to
863 blame: if I move the awk.h inclusion before GLR's system header
864 inclusion, the two struct stat have the same size.
865
866 * src/tables.c (pack_table): Always create conflict_table.
867 (token_actions): Always create conflict_list.
868 * data/glr.c (YYFLAG): Remove, unused.
869
8702002-10-13 Akim Demaille <akim@epita.fr>
871
872 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
873 (O0FLAGS): New.
874 (VALGRIND, GXX): New.
875 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
876 * tests/bison.in: Run $PREBISON a pre-command.
877 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
878 (maintainer-check-g++): New.
879 * Makefile.am (maintainer-check): New.
880
8812002-10-13 Akim Demaille <akim@epita.fr>
882
883 * data/glr.c: Formatting changes.
884 Tweak some trace messages to match yacc.c's.
885
8862002-10-13 Akim Demaille <akim@epita.fr>
887
888 GLR parsers sometimes raise parse errors instead of performing the
889 default reduction.
890 Reported by Charles-Henry de Boysson.
891
892 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
893 check the length of the traces when %glr.
894 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
895 GLR's traces.
896 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
897 Test GLR parsers.
898 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
899 (yyltype): Remove the yy prefix from the member names.
900 (yytable): Complete its comment.
901 (yygetLRActions): Map error action number from YYTABLE from
902 YYTABLE_NINF to 0.
903 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
904 (which was a bug: it should have been YYTABEL_NINF, and yet it was
905 not satisfying as we could compare an YYACTION computed from
906 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
907 only value for error actions.
908 (yyreportParseError): In verbose parse error messages, don't issue
909 `error' in the list of expected tokens.
910 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
911 next action to perform to match glr.c's decoding.
912 (yytable): Complete its comment.
913
9142002-10-13 Paul Eggert <eggert@twinsun.com>
915
916 Fix problem reported by Henrik Grubbstroem in
917 <http://mail.gnu.org/pipermail/bug-bison/2002-October/001670.html>:
918 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
919 because the Bison parser reads the second action before reducing
920 the first one.
921 * src/scan-gram.l (rule_length): New static var.
922 Use it to keep track of the rule length in the scanner, since
923 we can't expect the parser to be in lock-step sync with the scanner.
924 (handle_action_dollar, handle_action_at): Use this var.
925 * tests/actions.at (Exotic Dollars): Test for the problem.
926
9272002-10-12 Paul Eggert <eggert@twinsun.com>
928
929 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
930 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
931 Include <sys/time.h> when checking for clock_t and struct tms.
932 Use same include order as source.
933 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
934 <http://mail.gnu.org/pipermail/bug-bison/2002-October/001674.html>.
935
936 * lib/timevar.c: Update copyright date and clarify comments.
937 (get_time) [IN_GCC]: Keep the GCC version for reference.
938
939 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
940 GCC version as of today, then merge Bison's changes.
941 Change "GCC" to "Bison" in copyright notice. timevar.def's
942 author is Akim, so change that too.
943
944 * src/reader.c (grammar_current_rule_check):
945 Don't worry about the default action if $$ is untyped.
946 Prevents bogus warnings reported by Jim Gifford in
947 <http://mail.gnu.org/pipermail/bug-bison/2002-October/001673.html>.
948
949 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
950 * data/glr.c, data/lalr1.cc, data/yacc.c:
951 Output token definitions before the first part of user declarations.
952 Fixes compatibility problem reported by Jim Gifford for kbd in
953 <http://mail.gnu.org/pipermail/bug-bison/2002-October/001672.html>.
954
9552002-10-11 Paul Eggert <eggert@twinsun.com>
956
957 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
958 (yyparse): here. This undoes some of the 2002-07-25 change.
959 Compatibility problem reported by Ralf S. Engelschall with
960 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
961
9622002-10-11 Akim Demaille <akim@epita.fr>
963
964 * tests/regression.at Characters Escapes): New.
965 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
966 characters.
967 Reported by Jan Nieuwenhuizen.
968
9692002-10-11 Akim Demaille <akim@epita.fr>
970
971 * po/id.po: New.
972
9732002-10-10 Paul Eggert <eggert@twinsun.com>
974
975 Portability fixes for bitsets; this also avoids several GCC
976 warnings.
977
978 * lib/abitset.c: Include <stddef.h>, for offsetof.
979 * lib/lbitset.c: Likewise.
980
981 * lib/abitset.c (abitset_bytes): Return a size that is aligned
982 properly for vectors of objects. Do not assume that adding a
983 header size to a multiple of a word size yields a value that is
984 properly aligned for the whole union.
985 * lib/bitsetv.c (bitsetv_alloc): Likewise.
986
987 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
988 unique names for structures.
989 * lib/ebitset.c (ebitset_bytes): Likewise.
990 * lib/lbitset.c (lbitset_bytes): Likewise.
991
992 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
993 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
994 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
995 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
996 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
997 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
998 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
999 to improve the type-checking that GCC can do.
1000 * lib/bitset.c (bitset_op4_cmp): Likewise.
1001 * lib/bitset_stats.c (bitset_stats_count,
1002 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
1003 bitset_stats_copy, bitset_stats_disjoint_p,
1004 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
1005 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
1006 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
1007 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
1008 bitset_stats_and_or_cmp, bitset_stats_andn_or,
1009 bitset_stats_andn_or_cmp, bitset_stats_or_and,
1010 bitset_stats_or_and_cmp): Likewise.
1011 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
1012 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
1013 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
1014 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
1015
1016 * lib/abitset.h: Include bitset.h, not bbitset.h.
1017 * lib/ebitset.h: Likewise.
1018 * lib/lbitset.h: Likewise.
1019
1020 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
1021 All instances of parameters of type enum bitset_opts are now of
1022 type enum_bitset_opts, to conform to the C Standard, and similarly
1023 for enum_bitset_type.
1024 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
1025 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
1026
1027 Do not use "struct bitset_struct" to mean different things in
1028 different modules. Not only is this confusing, it violates
1029 the C Standard, which requires that structure types in different
1030 modules must be compatible if one is to be passed to the other.
1031 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
1032 All instances of "struct bitset_struct *" replaced with "bitset".
1033 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
1034 (union bitset_union, struct abitset_struct, struct ebitset_struct,
1035 struct lbitset_struct, struct bitset_stats_struct): New types.
1036 All uses of struct bitset_struct changed to union bitset_union,
1037 etc.
1038 * lib/abitset.c (struct abitset_struct, abitset,
1039 struct bitset_struct): Remove.
1040 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
1041 struct bitset_struct): Remove.
1042 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
1043 bitset_struct): Remove.
1044 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
1045 Likewise.
1046
1047 Do not call a function of type T using a call that assumes the
1048 function is of a different type U. Standard C requires that a
1049 function must be called with a type that is compatible with its
1050 definition.
1051 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
1052 New decls.
1053 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
1054 New functions.
1055 * lib/ebitset.c (PFV): Remove.
1056 * lib/lbitset.c (PFV): Likewise.
1057 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
1058 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
1059 decls.
1060 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
1061 (ebitset_vtable): Use them.
1062 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
1063 lbitset_xor): New functions.
1064 (lbitset_vtable): Use them.
1065
1066 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
1067 Declare.
1068
1069 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
1070 GCC warning.
1071 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
1072 Use offsetof, for simplicity.
1073
10742002-10-06 Paul Eggert <eggert@twinsun.com>
1075
1076 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
1077 the same width as int. This reapplies a hunk of the 2002-08-12 patch
1078 <http://mail.gnu.org/pipermail/bison-patches/2002-August/001111.html>,
1079 which was inadvertently undone by the 2002-09-30 patch.
1080 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
1081 the same width as int.
1082
10832002-10-04 Paul Eggert <eggert@twinsun.com>
1084
1085 Version 1.50.
1086
1087 * configure.ac (AC_INIT), NEWS: Increment version number.
1088
1089 * doc/bison.texinfo: Minor spelling, grammar, and white space
1090 fixes.
1091 (Symbols): Mention that any negative value returned from yylex
1092 signifies end-of-input. Warn about negative chars. Mention
1093 the portable Standard C character set.
1094
1095 The GNU coding standard says CFLAGS and YFLAGS are reserved
1096 for the installer to set.
1097 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
1098 * src/Makefile.am (AM_CFLAGS): Likewise.
1099 (AM_YFLAGS): Renamed from YFLAGS.
1100
1101 Fix some MAX and MIN problems.
1102 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
1103 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
1104 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
1105 * src/reader.c (reader): Use it.
1106
1107 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
1108 POSIX 1003.1-2001 has removed fgrep.
1109
11102002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
1111
1112 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
1113 interpreted as signed.
1114 * lib/ebitset.c (ebitset_list): Fix bug.
1115
11162002-10-01 Paul Eggert <eggert@twinsun.com>
1117
1118 More fixes for 64-bit hosts and large bitsets.
1119
1120 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
1121 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
1122 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
1123 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
1124 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
1125 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
1126 bitset_count_): Likewise.
1127 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
1128 bitset_first, bitset_last): Likewise.
1129 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
1130 bitset_stats_list_reverse, bitset_stats_size,
1131 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
1132 Likewise.
1133 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
1134 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
1135 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
1136 bitsetv_reflexive_transitive_closure): Likewise.
1137 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
1138 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
1139 Likewise.
1140 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
1141 Likewise.
1142
1143 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
1144 Use size_t, not unsigned int, to count bytes.
1145 * lib/abitset.h (abitset_bytes): Likewise.
1146 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
1147 Likewise.
1148 * lib/bitset.h (bitset_bytes): Likewise.
1149 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
1150 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
1151 * lib/bitsetv.c (bitsetv_alloc): Likewise.
1152 * lib/ebitset.c (ebitset_bytes): Likewise.
1153 * lib/ebitset.h (ebitset_bytes): Likewise.
1154 * lib/lbitset.c (lbitset_bytes): Likewise.
1155 * lib/lbitset.h (lbitset_bytes): Likewise.
1156
1157 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
1158 abitset_subset_p, abitset_disjoint_p, abitset_and,
1159 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
1160 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
1161 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
1162 abitset_or_and, abitset_or_and_cmp):
1163 Use bitset_windex instead of unsigned int.
1164 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
1165 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
1166 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
1167 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
1168 Likewise.
1169 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
1170
1171 * lib/bitset.c (bitset_print):
1172 Use proper printf formats for widths of integer types.
1173 * lib/bitset_stats.c (bitset_percent_histogram_print,
1174 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
1175 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
1176 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
1177 * lib/lbitset.c (lbitset_bytes): Likewise.
1178
1179 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
1180 BITSET_SIZE_MAX): New macros.
1181 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
1182 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
1183 to BITSET_WINDEX_MAX.
1184
1185 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
1186 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
1187 since we now return the bitset_bindex type (not int).
1188
1189 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
1190 when computing sizes.
1191 * lib/ebitset.c (ebitset_elts_grow): Likewise.
1192
1193 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
1194 and avoid cast to unsigned.
1195
11962002-09-30 Akim Demaille <akim@epita.fr>
1197
1198 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
1199 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
1200 Updates from Michael Hayes.
1201
12022002-09-30 Art Haas <ahaas@neosoft.com>
1203
1204 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
1205 invocations.
1206 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
1207 defined.
1208
12092002-09-27 Akim Demaille <akim@epita.fr>
1210
1211 Version 1.49c.
1212
12132002-09-27 Akim Demaille <akim@epita.fr>
1214
1215 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
1216 (Because of AC_LIBSOURCE).
1217
12182002-09-27 Akim Demaille <akim@epita.fr>
1219
1220 Playing with Autoscan.
1221
1222 * configure.ac: Remove the old LIBOBJ tweaks.
1223 (AC_REPLACE_FUNCS): Add strrchr and strtol.
1224 * lib/strrchr.c: New.
1225 * lib/strtol.c: New, from the Coreutils 4.5.1.
1226
12272002-09-27 Akim Demaille <akim@epita.fr>
1228
1229 Playing with Autoscan.
1230
1231 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
1232 * lib/Makefile.am (libbison_a_SOURCES): No longer include
1233 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
1234 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
1235 Coreutils 4.5.1.
1236
12372002-09-24 Akim Demaille <akim@epita.fr>
1238
1239 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
1240 (Frequently Asked Questions, Parser Stack Overflow): New.
1241
12422002-09-13 Akim Demaille <akim@epita.fr>
1243
1244 Playing with autoscan.
1245
1246 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
1247 * src/files.c (skeleton_find): Remove, unused.
1248 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
1249 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
1250
12512002-09-13 Akim Demaille <akim@epita.fr>
1252
1253 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
1254 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
1255
12562002-09-13 Akim Demaille <akim@epita.fr>
1257
1258 * configure.ac: Require 2.54.
1259 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
1260 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
1261 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
1262 Remove, provided by Autoconf macros.
1263
12642002-09-12 Akim Demaille <akim@epita.fr>
1265
1266 * m4/prereq.m4: Update, from Coreutils 4.5.1.
1267
12682002-09-12 Akim Demaille <akim@epita.fr>
1269
1270 * m4/prereq.m4: Update, from Fileutils 4.1.5.
1271 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
1272 Reported by Martin Mokrejs.
1273
12742002-09-10 Akim Demaille <akim@epita.fr>
1275
1276 * src/parse-gram.y: Associate a human readable string to each
1277 token type.
1278 * tests/regression.at (Invalid inputs): Adjust.
1279
12802002-09-10 Gary V. Vaughan <gary@gnu.org>
1281
1282 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
1283 with an Autoconf-2.5x style configure.ac.
1284
12852002-09-06 Paul Eggert <eggert@twinsun.com>
1286
1287 * doc/bison.texinfo (Conditions): Make explicit that the GPL
1288 exception applies only to yacc.c. This is a modification of a
1289 patch originally suggested by Akim Demaille.
1290
12912002-09-06 Akim Demaille <akim@epita.fr>
1292
1293 * data/c.m4 (b4_copyright): Move the GPL exception comment from
1294 here to...
1295 * data/yacc.c: here.
1296
1297 * data/lalr1.cc (struct yyltype): Don't define it, since we use
1298 LocationType.
1299 (b4_ltype): Default to yy::Location from location.hh.
1300
13012002-09-04 Jim Meyering <jim@meyering.net>
1302
1303 * data/yacc.c: Guard the declaration of yytoknum also with
1304 `#ifdef YYPRINT', so it is declared only when used.
1305
13062002-09-04 Akim Demaille <akim@epita.fr>
1307
1308 * configure.in: Rename as...
1309 * configure.ac: this.
1310 Bump to 1.49c.
1311
13122002-09-04 Akim Demaille <akim@epita.fr>
1313
1314 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
1315 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
1316 translate maintainer only messages.
1317
13182002-08-12 Paul Eggert <eggert@twinsun.com>
1319
1320 Version 1.49b.
1321
1322 * Makefile.am (SUBDIRS): Remove intl.
1323 (DISTCLEANFILES): Remove.
1324 * NEWS: Mention that GNU M4 is now required. Clarify what is
1325 meant by "larger grammars". Mention the pt_BR translation.
1326 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
1327 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
1328 Bump version from 0.11.2 to 0.11.5.
1329 (BISON_PREREQ_STAGE): Remove.
1330 (AM_GNU_GETTEXT): Use external gettext.
1331 (AC_OUTPUT): Remove intl/Makefile.
1332
1333 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
1334
1335 * data/glr.c: Include string.h, for strlen.
1336 (yyreportParseError): Use size_t for yysize.
1337 (yy_yypstack): No longer nested inside yypstates, as nested
1338 functions are not portable. Do not assume size_t is the
1339 same width as int.
1340 (yypstates): Do not assume that ptrdiff_t is the same width
1341 as int, and similarly for yyposn and YYINDEX.
1342
1343 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
1344
1345 * lib/Makefile.am (INCLUDES): Do not include from the intl
1346 directory, which has been removed.
1347 * src/Makefile.am (INCLUDES): Likewise.
1348
1349 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
1350 (bitsets_sources, additional_bitsets_sources, timevars_sources):
1351 New vars.
1352
1353 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
1354 * tests/Makefile.am (EXTRA_DIST): Likewise.
1355
1356 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
1357 Do not assume that bitset_windex is the same width as unsigned.
1358
1359 * lib/abitset.c (abitset_unused_clear): Do not assume that
1360 bitset_word is the same width as int.
1361 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
1362 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
1363 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
1364 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
1365 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
1366
1367 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
1368 portability to one's complement hosts!).
1369 * lib/ebitset.c (ebitset_op1): Likewise.
1370 * lib/lbitset.c (lbitset_op1): Likewise.
1371
1372 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
1373 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
1374 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
1375 Sync with fileutils.
1376 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
1377 lib/gettext.h: Sync with diffutils.
1378
1379 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
1380 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
1381
1382 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
1383 PROTOTYPES to check for prototypes, and "defined __STDC__" to
1384 check for void *.
1385
1386 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
1387 size_t; the old version tried to do this but casted improperly.
1388 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
1389 (bitset_test): Now returns int, not unsigned long.
1390
1391 * lib/bitset_stats.c: Include "gettext.h".
1392 (_): New macro.
1393 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
1394 name locals "index", as it generates unnecessary warnings on some
1395 hosts that have an "index" function.
1396
1397 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
1398 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
1399 they need translation.
1400 * src/LR0.c (state_list_append, new_itemsets, get_state,
1401 append_states, generate_states): Likewise.
1402 * src/assoc.c (assoc_to_string): Likewise.
1403 * src/closure.c (print_closure, set_firsts, closure): Likewise.
1404 * src/gram.c (grammar_dump): Likewise.
1405 * src/injections.c (injections_compute): Likewise.
1406 * src/lalr.c (lookaheads_print): Likewise.
1407 * src/relation.c (relation_transpose): Likewise.
1408 * src/scan-gram.l: Likewise.
1409 * src/tables.c (table_grow, pack_vector): Likewise.
1410
1411 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
1412 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
1413 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
1414 * m4/mbstate_t.m4: Sync with fileutils.
1415 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
1416
1417 * po/LINGUAS: Add pt_BR.
1418 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
1419 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
1420 lib/timevar.c.
1421 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
1422 manual recommends.
1423 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
1424
1425 * src/complain.c (strerror_r): Remove decl; not needed.
1426 (strerror): Use same pattern as ../lib/error.c.
1427
1428 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
1429
1430 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
1431
1432 * src/main.c (main): Cast result of bindtextdomain and textdomain
1433 to void, to avoid a GCC warning when --disable-nls is in effect.
1434
1435 * src/scan-gram.l: Use strings rather than escapes when possible,
1436 to minimize the number of warnings from xgettext.
1437 (handle_action_dollar, handle_action_at): Don't use isdigit,
1438 as it mishandles negative chars and it may not work as expected
1439 outside the C locale.
1440
1441 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
1442 this is a GCC extension and is not portable to other compilers.
1443
1444 * src/system.h (alloca): Use same pattern as ../lib/error.c.
1445 Do not include <ctype.h>; no longer needed.
1446 Do not include <malloc.h>; no longer needed (and generates
1447 warnings on OpenBSD 3.0).
1448
1449 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
1450 it's not portable.
1451
1452 * tests/regression.at: Do not use 'cc -c input.c -o input';
1453 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
1454
1455 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
1456 exit status as failure, not just exit status 1. Sun C exits
1457 with status 2 sometimes.
1458
1459 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
1460 Use it for the two large tests.
1461
14622002-08-02 Akim Demaille <akim@epita.fr>
1463
1464 * src/conflicts.c (conflicts_output): Don't output rules never
1465 reduced here, since anyway that computation doesn't work.
1466 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
1467 (rule_useless_p, rule_never_reduced_p): New.
1468 (grammar_rules_partial_print): Use a filter instead of a range.
1469 Display the title only if needed.
1470 (grammar_rules_print): Adjust.
1471 (grammar_rules_never_reduced_report): New.
1472 * src/tables.c (action_row): Move the computation of rules never
1473 reduced to...
1474 (token_actions): here.
1475 * src/main.c (main): Make the parser before making the report, so
1476 that rules never reduced are computed.
1477 Call grammar_rules_never_reduced_report.
1478 * src/print.c (print_results): Report rules never reduced.
1479 * tests/conflicts.at, tests/reduce.at: Adjust.
1480
14812002-08-01 Akim Demaille <akim@epita.fr>
1482
1483 Instead of attaching lookaheads and duplicating the rules being
1484 reduced by a state, attach the lookaheads to the reductions.
1485
1486 * src/state.h (state_t): Remove the `lookaheads',
1487 `lookaheads_rule' member.
1488 (reductions_t): Add a `lookaheads' member.
1489 Use a regular array for the `rules'.
1490 * src/state.c (reductions_new): Initialize the lookaheads member
1491 to 0.
1492 (state_rule_lookaheads_print): Adjust.
1493 * src/state.h, src/state.c (state_reductions_find): New.
1494 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
1495 (count_rr_conflicts): Adjust.
1496 * src/lalr.c (LArule): Remove.
1497 (add_lookback_edge): Adjust.
1498 (state_lookaheads_count): New.
1499 (states_lookaheads_initialize): Merge into...
1500 (initialize_LA): this.
1501 (lalr_free): Adjust.
1502 * src/main.c (main): Don't free nullable and derives too early: it
1503 is used by --verbose.
1504 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
1505
15062002-08-01 Akim Demaille <akim@epita.fr>
1507
1508 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
1509 `rule_number_t**'.
1510 (set_derives, free_derives): Rename as...
1511 (derives_compute, derives_free): this.
1512 Adjust all dependencies.
1513 * src/nullable.c (set_nullable, free_nullable): Rename as...
1514 (nullable_compute, nullable_free): these.
1515 (rule_list_t): Store rule_t *, not rule_number_t.
1516 * src/state.c (state_rule_lookaheads_print): Directly compare rule
1517 pointers, instead of their numbers.
1518 * src/main.c (main): Call nullable_free, and derives_free earlier,
1519 as they were lo longer used.
1520
15212002-08-01 Akim Demaille <akim@epita.fr>
1522
1523 * lib/timevar.c (get_time): Include children time.
1524 * src/lalr.h (LA, LArule): Don't export them: used with the
1525 state_t.
1526 * src/lalr.c (LA, LArule): Static.
1527 * src/lalr.h, src/lalr.c (lalr_free): New.
1528 * src/main.c (main): Call it.
1529 * src/tables.c (pack_vector): Check whether loc is >= to the
1530 table_size, not >.
1531 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
1532 (tables_generate): do it, since that's also it which allocates
1533 them.
1534 Don't free LA and LArule, main does.
1535
15362002-07-31 Akim Demaille <akim@epita.fr>
1537
1538 Separate parser tables computation and output.
1539
1540 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
1541 (conflict_list, conflict_list_cnt, table, check, table_ninf)
1542 (yydefgoto, yydefact, high): Move to...
1543 * src/tables.h, src/tables.c: here.
1544 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
1545 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
1546 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
1547 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
1548 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
1549 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
1550 (action_row, save_row, token_actions, save_column, default_goto)
1551 (goto_actions, sort_actions, matching_state, pack_vector)
1552 (table_ninf_remap, pack_table, prepare_actions): Move to...
1553 * src/tables.c: here.
1554 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
1555 * src/output.c (token_actions, output_base, output_conflicts)
1556 (output_check): Merge into...
1557 (prepare_actions): this.
1558 (actions_output): Rename as...
1559 (user_actions_output): this.
1560 * src/main.c (main): Call tables_generate and tables_free.
1561
15622002-07-31 Akim Demaille <akim@epita.fr>
1563
1564 Steal GCC's --time-report support.
1565
1566 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
1567 stolen/adjusted from GCC.
1568 * m4/stage.m4: Remove time related checks.
1569 * m4/timevar.m4: New.
1570 * configure.in: Adjust.
1571 * src/system.h: Adjust to using timevar.h.
1572 * src/getargs.h, src/getargs.c: Support trace_time for
1573 --trace=time.
1574 * src/main.c (stage): Remove.
1575 (main): Replace `stage' invocations with timevar calls.
1576 * src/output.c: Insert pertinent timevar calls.
1577
15782002-07-31 Akim Demaille <akim@epita.fr>
1579
1580 Let --trace have arguments.
1581
1582 * src/getargs.h (enum trace_e): New.
1583 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
1584 (long_options, short_options): --trace/-T takes an optional
1585 argument.
1586 Change all the uses of trace_flag to reflect the new flags.
1587 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
1588
1589 Strengthen `stage' portability.
1590
1591 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
1592 * configure.in: Use it.
1593 Don't check for malloc.h and sys/times.h.
1594 * src/system.h: Include them when appropriate.
1595 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
1596 times and struct tms are available.
1597
15982002-07-30 Akim Demaille <akim@epita.fr>
1599
1600 In verbose parse error message, don't report `error' as an
1601 expected token.
1602 * tests/actions.at (Printers and Destructors): Adjust.
1603 * tests/calc.at (Calculator $1): Adjust.
1604 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
1605 error message, do not report the parser accepts the error token in
1606 that state.
1607
16082002-07-30 Akim Demaille <akim@epita.fr>
1609
1610 Normalize conflict related messages.
1611
1612 * src/complain.h, src/complain.c (warn, complain): New.
1613 * src/conflicts.c (conflicts_print): Use them.
1614 (conflict_report_yacc): New, extracted from...
1615 (conflicts_print): here.
1616 * tests/conflicts.at, tests/existing.at: Adjust.
1617
16182002-07-30 Akim Demaille <akim@epita.fr>
1619
1620 Report rules which are never reduced by the parser: those hidden
1621 by conflicts.
1622
1623 * src/LR0.c (save_reductions): Don't make the final state too
1624 different: save its reduction (accept) instead of having a state
1625 without any action (no shift or goto, no reduce).
1626 Note: the final state is now a ``regular'' state, i.e., the
1627 parsers now contain `reduce 0' as default reduction.
1628 Nevertheless, since they decide to `accept' when yystate =
1629 final_state, they still will not reduce rule 0.
1630 * src/print.c (print_actions, print_reduction): Adjust.
1631 * src/output.c (action_row): Track reduced rules.
1632 (token_actions): Report rules never reduced.
1633 * tests/conflicts.at, tests/regression.at: Adjust.
1634
16352002-07-30 Akim Demaille <akim@epita.fr>
1636
1637 `stage' was accidently included in a previous patch.
1638 Initiate its autoconfiscation.
1639
1640 * configure.in: Look for malloc.h and sys/times.h.
1641 * src/main.c (stage): Adjust.
1642 Report only when trace_flag.
1643
16442002-07-29 Akim Demaille <akim@epita.fr>
1645
1646 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
1647 state_number_t.
1648 (errs_t): symbol_t*, not symbol_number_t.
1649 (reductions_t): rule_t*, not rule_number_t.
1650 (FOR_EACH_SHIFT): New.
1651 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
1652 * src/print.c, src/print_graph.c: Adjust.
1653
16542002-07-29 Akim Demaille <akim@epita.fr>
1655
1656 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
1657
1658 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
1659 (endtoken, accept): these.
1660 * src/reader.c (reader): Set endtoken's default tag to "$end".
1661 Set undeftoken's tag to "$undefined" instead of "$undefined.".
1662 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
1663 Adjust.
1664
16652002-07-29 Akim Demaille <akim@epita.fr>
1666
1667 * src/reduce.c (reduce_grammar): When the language is empty,
1668 complain about the start symbol, not the axiom.
1669 Use its location.
1670 * tests/reduce.at (Empty Language): New.
1671
16722002-07-26 Akim Demaille <akim@epita.fr>
1673
1674 * src/reader.h, src/reader.c (gram_error): ... can't get
1675 yycontrol without making too strong assumptions on the parser
1676 itself.
1677 * src/output.c (prepare_tokens): Use the real 0th value of
1678 token_translations instead of `0'.
1679 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
1680 visible here.
1681 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
1682 for the time being: %locations ought to provide it to yyerror.
1683
16842002-07-25 Akim Demaille <akim@epita.fr>
1685
1686 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
1687 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
1688 * tests/regression.at (Web2c Actions): Adjust.
1689
16902002-07-25 Akim Demaille <akim@epita.fr>
1691
1692 Stop storing rules from 1 to nrules + 1.
1693
1694 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
1695 * src/nullable.c, src/output.c, src/print.c, src/reader.c
1696 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
1697 Iterate from 0 to nrules.
1698 Use rule_number_as_item_number and item_number_as_rule_number.
1699 Adjust to `derive' now containing possibly 0.
1700 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
1701 Handle the `- 1' part in rule numbers from/to item numbers.
1702 * src/conflicts.c (log_resolution): Fix the message which reversed
1703 shift and reduce.
1704 * src/output.c (action_row): Initialize default_rule to -1.
1705 (token_actions): Adjust.
1706 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
1707 expected output.
1708 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
1709
17102002-07-25 Akim Demaille <akim@epita.fr>
1711
1712 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
1713 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
1714 (b4_c_knr_arg_decl): New.
1715 * data/yacc.c: Use it to define yysymprint, yydestruct, and
1716 yyreport_parse_error.
1717
17182002-07-25 Akim Demaille <akim@epita.fr>
1719
1720 * data/yacc.c (yyreport_parse_error): New, extracted from...
1721 (yyparse): here.
1722 (yydestruct, yysymprint): Move above yyparse.
1723 Be K&R compliant.
1724
17252002-07-25 Akim Demaille <akim@epita.fr>
1726
1727 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
1728 replace...
1729 (b4_sint_type, b4_uint_type): these.
1730 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
1731 * tests/regression.at (Web2c Actions): Adjust.
1732
17332002-07-25 Akim Demaille <akim@epita.fr>
1734
1735 * src/gram.h (TIEM_NUMBER_MAX): New.
1736 (item_number_of_rule_number, rule_number_of_item_number): Rename
1737 as...
1738 (rule_number_as_item_number, item_number_as_rule_number): these.
1739 Adjust dependencies.
1740 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
1741 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
1742 (symbol_number_to_vector_number): New.
1743 (order): Of vector_number_t* type.
1744 (base_t, BASE_MAX, BASE_MIN): New.
1745 (froms, tos, width, pos, check): Of base_t type.
1746 (action_number_t, ACTION_MIN, ACTION_MAX): New.
1747 (actrow): Of action_number_t type.
1748 (conflrow): Of unsigned int type.
1749 (table_ninf, base_ninf): New.
1750 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
1751 (muscle_insert_int_table, muscle_insert_base_table)
1752 (muscle_insert_rule_number_table): New.
1753 (prepare_tokens): Output `toknum' as int_table.
1754 (action_row): Returns a rule_number_t.
1755 Use ACTION_MIN, not SHRT_MIN.
1756 (token_actions): yydefact is rule_number_t*.
1757 (table_ninf_remap): New.
1758 (pack_table): Use it for `base' and `table'.
1759 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
1760 replaced with...
1761 (YYPACT_NINF, YYTABLE_NINF): these.
1762 (yypact, yytable): Compute their types instead of hard-coded
1763 `short'.
1764 * tests/regression.at (Web2c Actions): Adjust.
1765
17662002-07-19 Akim Demaille <akim@epita.fr>
1767
1768 * src/scan-gram.l (id): Can start with an underscore.
1769
17702002-07-16 Akim Demaille <akim@epita.fr>
1771
1772 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
1773 Adjust all former `associativity' dependencies.
1774 * src/symtab.c (symbol_new): Default associativity is `undef', not
1775 `right'.
1776 (symbol_check_alias_consistence): Adjust.
1777
17782002-07-09 Akim Demaille <akim@epita.fr>
1779
1780 * doc/bison.texinfo: Properly set the ``header'' part.
1781 Use @dircategory ``GNU programming tools'' as per Texinfo's
1782 documentation.
1783 Use @copying.
1784
17852002-07-09 Akim Demaille <akim@epita.fr>
1786
1787 * lib/quotearg.h: Protect against multiple inclusions.
1788 * src/location.h (location_t): Add a `file' member.
1789 (LOCATION_RESET, LOCATION_PRINT): Adjust.
1790 * src/complain.c (warn_at, complain_at, fatal_at): Drop
1791 `error_one_per_line' support.
1792
17932002-07-09 Akim Demaille <akim@epita.fr>
1794
1795 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
1796 * src/reader.c (lineno): Remove.
1797 Adjust all dependencies.
1798 (get_merge_function): Take a location and use complain_at.
1799 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
1800 * tests/regression.at (Invalid inputs, Mixing %token styles):
1801 Adjust.
1802
18032002-07-09 Akim Demaille <akim@epita.fr>
1804
1805 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
1806 recovery rule, and forbid extensions when --yacc.
1807 (gram_error): Use complain_at.
1808 * src/reader.c (reader): Exit if there were parse errors.
1809
18102002-07-09 Akim Demaille <akim@epita.fr>
1811
1812 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
1813 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
1814 Reported by R Blake <blakers@mac.com>.
1815
18162002-07-09 Akim Demaille <akim@epita.fr>
1817
1818 * data/yacc.c: Output the copyright notive in the header.
1819
18202002-07-03 Akim Demaille <akim@epita.fr>
1821
1822 * src/output.c (froms, tos): Are state_number_t.
1823 (save_column): sp, sp1, and sp2 are state_number_t.
1824 (prepare): Rename `final' as `final_state_number', `nnts' as
1825 `nterms_number', `nrules' as `rules_number', `nstates' as
1826 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
1827 unused.
1828 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
1829 * data/lalr1.cc (nsym_): Remove, unused.
1830
18312002-07-03 Akim Demaille <akim@epita.fr>
1832
1833 * src/lalr.h, src/lalr.c (goto_number_t): New.
1834 * src/lalr.c (goto_list_t): New.
1835 Propagate them.
1836 * src/nullable.c (rule_list_t): New.
1837 Propagate.
1838 * src/types.h: Remove.
1839
18402002-07-03 Akim Demaille <akim@epita.fr>
1841
1842 * src/closure.c (print_fderives): Use rule_rhs_print.
1843 * src/derives.c (print_derives): Use rule_rhs_print.
1844 (rule_list_t): New, replaces `shorts'.
1845 (set_derives): Add comments.
1846 * tests/sets.at (Nullable, Firsts): Adjust.
1847
18482002-07-03 Akim Demaille <akim@epita.fr>
1849
1850 * src/output.c (prepare_actions): Free `tally' and `width'.
1851 (prepare_actions): Allocate and free `order'.
1852 * src/symtab.c (symbols_free): Free `symbols'.
1853 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
1854 * src/output.c (m4_invoke): Move to...
1855 * src/scan-skel.l: here.
1856 (<<EOF>>): Close yyout, and free its name.
1857
18582002-07-03 Akim Demaille <akim@epita.fr>
1859
1860 Fix some memory leaks, and fix a bug: state 0 was examined twice.
1861
1862 * src/LR0.c (new_state): Merge into...
1863 (state_list_append): this.
1864 (new_states): Merge into...
1865 (generate_states): here.
1866 (set_states): Don't ensure a proper `errs' state member here, do it...
1867 * src/conflicts.c (conflicts_solve): here.
1868 * src/state.h, src/state.c: Comment changes.
1869 (state_t): Rename member `shifts' as `transitions'.
1870 Adjust all dependencies.
1871 (errs_new): For consistency, also take the values as argument.
1872 (errs_dup): Remove.
1873 (state_errs_set): New.
1874 (state_reductions_set, state_transitions_set): Assert that no
1875 previous value was assigned.
1876 (state_free): New.
1877 (states_free): Use it.
1878 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
1879 temporary storage: use `errs' and `nerrs' as elsewhere.
1880 (set_conflicts): Allocate and free this `errs'.
1881
18822002-07-02 Akim Demaille <akim@epita.fr>
1883
1884 * lib/libiberty.h: New.
1885 * lib: Update the bitset implementation from upstream.
1886 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
1887 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
1888 * src/main.c: Adjust bitset stats calls.
1889
18902002-07-01 Paul Eggert <eggert@twinsun.com>
1891
1892 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
1893 char, so that negative chars don't collide with $.
1894
18952002-06-30 Akim Demaille <akim@epita.fr>
1896
1897 Have the GLR tests be `warning' checked, and fix the warnings.
1898
1899 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
1900 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
1901 (yyremoveDeletes): `yyi' and `yyj' are size_t.
1902 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
1903 (yyaddDeferredAction): static.
1904 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
1905 (yyreportParseError): yyprefix is const.
1906 yytokenp is used only when verbose.
1907 (yy__GNUC__): Replace with __GNUC__.
1908 (yypdumpstack): yyi is size_t.
1909 (yypreference): Un-yy local variables and arguments, to avoid
1910 clashes with `yyr1'. Anyway, we are not in the user name space.
1911 (yytname_size): be an int, as is compared with ints.
1912 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
1913 Use them.
1914 * tests/cxx-gram.at: Use quotation to protect $1.
1915 Use AT_COMPILE to enable warnings hunts.
1916 Prototype yylex and yyerror.
1917 `Use' argc.
1918 Include `string.h', not `strings.h'.
1919 Produce and prototype stmtMerge only when used.
1920 yylex takes a location.
1921
19222002-06-30 Akim Demaille <akim@epita.fr>
1923
1924 We spend a lot of time in quotearg, in particular when --verbose.
1925
1926 * src/symtab.c (symbol_get): Store a quoted version of the key.
1927 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
1928 Adjust all callers.
1929
19302002-06-30 Akim Demaille <akim@epita.fr>
1931
1932 * src/state.h (reductions_t): Rename member `nreds' as num.
1933 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
1934 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
1935
19362002-06-30 Akim Demaille <akim@epita.fr>
1937
1938 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
1939 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
1940 (shifts_to): Rename as...
1941 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
1942 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
1943 (TRANSITION_IS_DISABLED, transitions_to): these.
1944
19452002-06-30 Akim Demaille <akim@epita.fr>
1946
1947 * src/print.c (print_shifts, print_gotos): Merge into...
1948 (print_transitions): this.
1949 (print_transitions, print_errs, print_reductions): Align the
1950 lookaheads columns.
1951 (print_core, print_transitions, print_errs, print_state,
1952 print_grammar): Output empty lines separator before, not after.
1953 (state_default_rule_compute): Rename as...
1954 (state_default_rule): this.
1955 * tests/conflicts.at (Defaulted Conflicted Reduction),
1956 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
1957 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
1958
19592002-06-30 Akim Demaille <akim@epita.fr>
1960
1961 Display items as we display rules.
1962
1963 * src/gram.h, src/gram.c (rule_lhs_print): New.
1964 * src/gram.c (grammar_rules_partial_print): Use it.
1965 * src/print.c (print_core): Likewise.
1966 * tests/conflicts.at (Defaulted Conflicted Reduction),
1967 (Unresolved SR Conflicts): Adjust.
1968 (Unresolved SR Conflicts): Adjust and rename as...
1969 (Resolved SR Conflicts): this, as was meant.
1970 * tests/regression.at (Web2c Report): Adjust.
1971
19722002-06-30 Akim Demaille <akim@epita.fr>
1973
1974 * src/print.c (state_default_rule_compute): New, extracted from...
1975 (print_reductions): here.
1976 Pessimize, but clarify the code.
1977 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
1978
19792002-06-30 Akim Demaille <akim@epita.fr>
1980
1981 * src/output.c (action_row): Let default_rule be always a rule
1982 number.
1983
19842002-06-30 Akim Demaille <akim@epita.fr>
1985
1986 * src/closure.c (print_firsts, print_fderives, closure):
1987 Use BITSET_EXECUTE.
1988 * src/lalr.c (lookaheads_print): Likewise.
1989 * src/state.c (state_rule_lookaheads_print): Likewise.
1990 * src/print_graph.c (print_core): Likewise.
1991 * src/print.c (print_reductions): Likewise.
1992 * src/output.c (action_row): Likewise.
1993 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
1994
19952002-06-30 Akim Demaille <akim@epita.fr>
1996
1997 * src/print_graph.c: Use report_flag.
1998
19992002-06-30 Akim Demaille <akim@epita.fr>
2000
2001 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
2002 to...
2003 * src/relation.h, src/relation.c (traverse, relation_digraph)
2004 (relation_print, relation_transpose): New.
2005
20062002-06-30 Akim Demaille <akim@epita.fr>
2007
2008 * src/state.h, src/state.c (shifts_to): New.
2009 * src/lalr.c (build_relations): Use it.
2010
20112002-06-30 Akim Demaille <akim@epita.fr>
2012
2013 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
2014 (item_number_of_rule_number, rule_number_of_item_number): New.
2015 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
2016 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
2017 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
2018 Propagate their use.
2019 Much remains to be done, in particular wrt `shorts' from types.h.
2020
20212002-06-30 Akim Demaille <akim@epita.fr>
2022
2023 * src/symtab.c (symbol_new): Initialize the `printer' member.
2024
20252002-06-30 Akim Demaille <akim@epita.fr>
2026
2027 * src/LR0.c (save_reductions): Remove, replaced by...
2028 * src/state.h, src/state.c (state_reductions_set): New.
2029 (reductions, errs): Rename as...
2030 (reductions_t, errs_t): these.
2031 Adjust all dependencies.
2032
20332002-06-30 Akim Demaille <akim@epita.fr>
2034
2035 * src/LR0.c (state_list_t, state_list_append): New.
2036 (first_state, last_state): Now symbol_list_t.
2037 (this_state): Remove.
2038 (new_itemsets, append_states, save_reductions): Take a state_t as
2039 argument.
2040 (set_states, generate_states): Adjust.
2041 (save_shifts): Remove, replaced by...
2042 * src/state.h, src/state.c (state_shifts_set): New.
2043 (shifts): Rename as...
2044 (shifts_t): this.
2045 Adjust all dependencies.
2046 * src/state.h (state_t): Remove the `next' member.
2047
20482002-06-30 Akim Demaille <akim@epita.fr>
2049
2050 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
2051 escaped in slot 0.
2052
20532002-06-30 Akim Demaille <akim@epita.fr>
2054
2055 Use hash.h for the state hash table.
2056
2057 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
2058 (allocate_storage): Use state_hash_new.
2059 (free_storage): Use state_hash_free.
2060 (new_state, get_state): Adjust.
2061 * src/lalr.h, src/lalr.c (states): Move to...
2062 * src/states.h (state_t): Remove the `link' member, no longer
2063 used.
2064 * src/states.h, src/states.c: here.
2065 (state_hash_new, state_hash_free, state_hash_lookup)
2066 (state_hash_insert, states_free): New.
2067 * src/states.c (state_table, state_compare, state_hash): New.
2068 * src/output.c (output_actions): Do not free states now, since we
2069 still need to know the final_state number in `prepare', called
2070 afterwards. Do it...
2071 * src/main.c (main): here: call states_free after `output'.
2072
20732002-06-30 Akim Demaille <akim@epita.fr>
2074
2075 * src/state.h, src/state.c (state_new): New, extracted from...
2076 * src/LR0.c (new_state): here.
2077 * src/state.h (STATE_ALLOC): Move to...
2078 * src/state.c: here.
2079 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
2080 * src/state.h, src/state.c: here.
2081
20822002-06-30 Akim Demaille <akim@epita.fr>
2083
2084 * src/reader.c (gensym): Rename as...
2085 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
2086 (getsym): Rename as...
2087 (symbol_get): this.
2088
20892002-06-30 Akim Demaille <akim@epita.fr>
2090
2091 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
2092 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
2093 * src/output.c, src/print.c, src/print_graph.c: Propagate.
2094 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
2095
20962002-06-30 Akim Demaille <akim@epita.fr>
2097
2098 Make the test suite pass with warnings checked.
2099
2100 * tests/actions.at (Printers and Destructors): Improve.
2101 Avoid unsigned vs. signed issues.
2102 * tests/calc.at: Don't exercise the scanner here, do it...
2103 * tests/input.at (Torturing the Scanner): here.
2104
21052002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2106
2107 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
2108 reorganize first lines parallel to yacc.c.
2109
21102002-06-28 Akim Demaille <akim@epita.fr>
2111
2112 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
2113 (b4_token_enum, b4_token_defines): New, factored from...
2114 * data/lalr1.cc, data/yacc.c, glr.c: here.
2115
21162002-06-28 Akim Demaille <akim@epita.fr>
2117
2118 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
2119 unused variables.
2120 * src/output.c (merger_output): static.
2121
21222002-06-28 Akim Demaille <akim@epita.fr>
2123
2124 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
2125 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
2126 pacify GCC.
2127 * src/output.c (save_row): Initialize all the variables to pacify GCC.
2128
21292002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2130
2131 Accumulated changelog for new GLR parsing features.
2132
2133 * src/conflicts.c (count_total_conflicts): Change name to
2134 conflicts_total_count.
2135 * src/conflicts.h: Ditto.
2136 * src/output.c (token_actions): Use the new name.
2137 (output_conflicts): Change conflp => conflict_list_heads, and
2138 confl => conflict_list for better readability.
2139 * data/glr.c: Use the new names.
2140 * NEWS: Add self to GLR announcement.
2141
2142 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
2143
2144 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
2145 Akim Demaille.
2146
2147 * data/bison.glr: Change name to glr.c
2148 * data/glr.c: Renamed from bison.glr.
2149 * data/Makefile.am: Add glr.c
2150
2151 * src/getargs.c:
2152
2153 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
2154 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
2155
2156 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2157
2158 * data/bison.glr: Be sure to restore the
2159 current #line when returning to the skeleton contents after having
2160 exposed the input file's #line.
2161
2162 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2163
2164 * data/bison.glr: Bring up to date with changes to bison.simple.
2165
2166 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2167
2168 * data/bison.glr: Correct definitions that use b4_prefix.
2169 Various reformatting.
2170 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
2171 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
2172 yytokenp argument; now part of stack.
2173 (yychar): Define to behave as documented.
2174 (yyclearin): Ditto.
2175
2176 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2177
2178 * src/reader.h: Add declaration for free_merger_functions.
2179
2180 * src/reader.c (merge_functions): New variable.
2181 (get_merge_function): New function.
2182 (free_merger_functions): New function.
2183 (readgram): Check for %prec that is not followed by a symbol.
2184 Handle %dprec and %merge declarations.
2185 (packgram): Initialize dprec and merger fields in rules array.
2186
2187 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
2188 conflict_list_cnt, conflict_list_free): New variables.
2189 (table_grow): Also grow conflict_table.
2190 (prepare_rules): Output dprec and merger tables.
2191 (conflict_row): New function.
2192 (action_row): Output conflict lists for GLR parser. Don't use
2193 default reduction in conflicted states for GLR parser so that there
2194 are spaces for the conflict lists.
2195 (save_row): Also save conflict information.
2196 (token_actions): Allocate conflict list.
2197 (merger_output): New function.
2198 (pack_vector): Pack conflict table, too.
2199 (output_conflicts): New function to output yyconflp and yyconfl.
2200 (output_check): Allocate conflict_tos.
2201 (output_actions): Output conflict tables, also.
2202 (output_skeleton): Output b4_mergers definition.
2203 (prepare): Output b4_max_rhs_length definition.
2204 Use 'bison.glr' as default skeleton for GLR parsers.
2205
2206 * src/gram.c (glr_parser): New flag.
2207 (grammar_free): Call free_merger_functions.
2208
2209 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
2210 all pairs of conflicting reductions, rather than just all tokens
2211 causing conflicts. Needed to size conflict tables.
2212 (conflicts_output): Modify call to count_rr_conflicts for new
2213 interface.
2214 (conflicts_print): Ditto.
2215 (count_total_conflicts): New function.
2216
2217 * src/reader.h (merger_list): New type.
2218 (merge_functions): New variable.
2219
2220 * src/lex.h (tok_dprec, tok_merge): New token types.
2221
2222 * src/gram.h (rule_s): Add dprec and merger fields.
2223 (glr_parser): New flag.
2224
2225 * src/conflicts.h (count_total_conflicts): New function.
2226
2227 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
2228
2229 * doc/bison.texinfo (Generalized LR Parsing): New section.
2230 (GLR Parsers): New section.
2231 (Language and Grammar): Mention GLR parsing.
2232 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
2233 Correct typo ("tge" -> "the").
2234
2235 * data/bison.glr: New skeleton for GLR parsing.
2236
2237 * tests/cxx-gram.at: New tests for GLR parsing.
2238
2239 * tests/testsuite.at: Include cxx-gram.at.
2240
2241 * tests/Makefile.am: Add cxx-gram.at.
2242
2243 * src/parse-gram.y:
2244
2245 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
2246
2247 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
2248
22492002-06-27 Akim Demaille <akim@epita.fr>
2250
2251 * src/options.h, src/options.c: Remove.
2252 * src/getargs.c (short_options, long_options): New.
2253
22542002-06-27 Akim Demaille <akim@epita.fr>
2255
2256 * data/bison.simple, data/bison.c++: Rename as...
2257 * data/yacc.c, data/lalr1.cc: these.
2258 * doc/bison.texinfo (Environment Variables): Remove.
2259
22602002-06-25 Raja R Harinath <harinath@cs.umn.edu>
2261
2262 * src/getargs.c (report_argmatch): Initialize strtok().
2263
22642002-06-20 Akim Demaille <akim@epita.fr>
2265
2266 * data/bison.simple (b4_symbol_actions): New, replaces...
2267 (b4_symbol_destructor, b4_symbol_printer): these.
2268 (yysymprint): Be sure to call YYPRINT only for tokens, and using
2269 user token numbers.
2270
22712002-06-20 Akim Demaille <akim@epita.fr>
2272
2273 * data/bison.simple (yydestructor): Rename as...
2274 (yydestruct): this.
2275
22762002-06-20 Akim Demaille <akim@epita.fr>
2277
2278 * src/symtab.h, src/symtab.c (symbol_type_set)
2279 (symbol_destructor_set, symbol_precedence_set): The location is
2280 the last argument.
2281 Adjust all callers.
2282
22832002-06-20 Akim Demaille <akim@epita.fr>
2284
2285 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
2286 internals.
2287 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
2288 Takes a location.
2289 * src/symtab.h, src/symtab.c (symbol_class_set)
2290 (symbol_user_token_number_set): Likewise.
2291 Adjust all callers.
2292 Promote complain_at.
2293 * tests/input.at (Type Clashes): Adjust.
2294
22952002-06-20 Akim Demaille <akim@epita.fr>
2296
2297 * data/bison.simple (YYLEX): Fix the declaration when
2298 %pure-parser.
2299
23002002-06-20 Akim Demaille <akim@epita.fr>
2301
2302 * data/bison.simple (yysymprint): Don't print the token number,
2303 just its name.
2304 * tests/actions.at (Destructors): Rename as...
2305 (Printers and Destructors): this.
2306 Also exercise %printer.
2307
23082002-06-20 Akim Demaille <akim@epita.fr>
2309
2310 * data/bison.simple (YYDSYMPRINT): New.
2311 Use it to remove many of the #if YYDEBUG/if (yydebug).
2312
23132002-06-20 Akim Demaille <akim@epita.fr>
2314
2315 * src/symtab.h, src/symtab.c (symbol_t): printer and
2316 printer_location are new members.
2317 (symbol_printer_set): New.
2318 * src/parse-gram.y (PERCENT_PRINTER): New token.
2319 Handle its associated rule.
2320 * src/scan-gram.l: Adjust.
2321 (handle_destructor_at, handle_destructor_dollar): Rename as...
2322 (handle_symbol_code_at, handle_symbol_code_dollar): these.
2323 * src/output.c (symbol_printers_output): New.
2324 (output_skeleton): Call it.
2325 * data/bison.simple (yysymprint): New. Cannot be named yyprint
2326 since there are already many grammar files with a user `yyprint'.
2327 Replace the calls to YYPRINT to calls to yysymprint.
2328 * tests/calc.at: Adjust.
2329 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
2330 taking advantage of parser very internal details (stack size!).
2331
23322002-06-20 Akim Demaille <akim@epita.fr>
2333
2334 * src/scan-gram.l: Complete the scanner with the missing patterns
2335 to pacify Flex.
2336 Use `quote' and `symbol_tag_get' where appropriate.
2337
23382002-06-19 Akim Demaille <akim@epita.fr>
2339
2340 * tests/actions.at (Destructors): Augment to test locations.
2341 * data/bison.simple (yydestructor): Pass it the current location
2342 if locations are enabled.
2343 Prototype only when __STDC__ or C++.
2344 Change the argument names to move into the yy name space: there is
2345 user code here.
2346
23472002-06-19 Akim Demaille <akim@epita.fr>
2348
2349 * data/bison.simple (b4_pure_if): New.
2350 Use it instead of #ifdef YYPURE.
2351
23522002-06-19 Akim Demaille <akim@epita.fr>
2353
2354 * data/bison.simple (b4_location_if): New.
2355 Use it instead of #ifdef YYLSP_NEEDED.
2356
23572002-06-19 Akim Demaille <akim@epita.fr>
2358
2359 Prepare @$ in %destructor, but currently don't bind it in the
2360 skeleton, as %location use is not cleaned up yet.
2361
2362 * src/scan-gram.l (handle_dollar, handle_destructor_at)
2363 (handle_action_at): New.
2364 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
2365 a braced_code_t and a location as additional arguments.
2366 (handle_destructor_dollar): Instead of requiring `b4_eval', just
2367 unquote one when outputting `b4_dollar_dollar'.
2368 Adjust callers.
2369 * data/bison.simple (b4_eval): Remove.
2370 (b4_symbol_destructor): Adjust.
2371 * tests/input.at (Invalid @n): Adjust.
2372
23732002-06-19 Zack Weinberg <zack@codesourcery.com>
2374
2375 * doc/bison.texinfo: Document ability to have multiple
2376 prologue sections.
2377
23782002-06-18 Akim Demaille <akim@epita.fr>
2379
2380 * src/files.c (compute_base_names): When computing the output file
2381 names from the input file name, strip the directory part.
2382
23832002-06-18 Akim Demaille <akim@epita.fr>
2384
2385 * data/bison.simple.new: Comment changes.
2386 Reported by Andreas Schwab.
2387
23882002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
2389
2390 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
2391 there are no `label `yyoverflowlab' defined but not used' warnings
2392 when yyoverflow is defined.
2393
23942002-06-18 Akim Demaille <akim@epita.fr>
2395
2396 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
2397 new member.
2398 (symbol_destructor_set): Adjust.
2399 * src/output.c (symbol_destructors_output): Output the destructor
2400 locations.
2401 Output the symbol name.
2402 * data/bison.simple (b4_symbol_destructor): Adjust.
2403
24042002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
2405 and Akim Demaille <akim@epita.fr>
2406
2407 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
2408 what's left on the stack when the error recovery hits EOF.
2409 * tests/actions.at (Destructors): Complete to exercise this case.
2410
24112002-06-17 Akim Demaille <akim@epita.fr>
2412
2413 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
2414 arguments is really empty, not only equal to `[]'.
2415 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
2416 member.
2417 (symbol_destructor_set): New.
2418 * src/output.c (symbol_destructors_output): New.
2419 * src/reader.h (brace_code_t, current_braced_code): New.
2420 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
2421 (handle_dollar): Rename as...
2422 (handle_action_dollar): this.
2423 (handle_destructor_dollar): New.
2424 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
2425 (grammar_declaration): Use it.
2426 * data/bison.simple (yystos): Is always defined.
2427 (yydestructor): New.
2428 * tests/actions.at (Destructors): New.
2429 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
2430
24312002-06-17 Akim Demaille <akim@epita.fr>
2432
2433 * src/symlist.h, src/symlist.c (symbol_list_length): New.
2434 * src/scan-gram.l (handle_dollar, handle_at): Compute the
2435 rule_length only when needed.
2436 * src/output.c (actions_output, token_definitions_output): Output
2437 the full M4 block.
2438 * src/symtab.c: Don't access directly to the symbol tag, use
2439 symbol_tag_get.
2440 * src/parse-gram.y: Use symbol_list_free.
2441
24422002-06-17 Akim Demaille <akim@epita.fr>
2443
2444 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
2445 (symbol_list_prepend, get_type_name): Move to...
2446 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
2447 (symbol_list_prepend, symbol_list_n_type_name_get): here.
2448 Adjust all callers.
2449 (symbol_list_free): New.
2450 * src/scan-gram.l (handle_dollar): Takes a location.
2451 * tests/input.at (Invalid $n): Adjust.
2452
24532002-06-17 Akim Demaille <akim@epita.fr>
2454
2455 * src/reader.h, src/reader.c (symbol_list_new): Export it.
2456 (symbol_list_prepend): New.
2457 * src/parse-gram.y (%union): `list' is a new member.
2458 (symbols.1): New, replaces...
2459 (terms_to_prec.1, nterms_to_type.1): these.
2460 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
2461 Take a location as additional argument.
2462 Adjust all callers.
2463
24642002-06-15 Akim Demaille <akim@epita.fr>
2465
2466 * src/parse-gram.y: Move %token in the declaration section so that
2467 we don't depend upon CVS Bison.
2468
24692002-06-15 Akim Demaille <akim@epita.fr>
2470
2471 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
2472 * src/print.c (print_core): Use it.
2473
24742002-06-15 Akim Demaille <akim@epita.fr>
2475
2476 * src/conflicts.c (log_resolution): Accept the rule involved in
2477 the sr conflicts instead of the lookahead number that points to
2478 that rule.
2479 (flush_reduce): Accept the current lookahead vector as argument,
2480 instead of the index in LA.
2481 (resolve_sr_conflict): Accept the current number of lookahead
2482 bitset to consider for the STATE, instead of the index in LA.
2483 (set_conflicts): Adjust.
2484 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
2485
24862002-06-15 Akim Demaille <akim@epita.fr>
2487
2488 * src/state.h (state_t): Replace the `lookaheadsp' member, a
2489 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
2490 Adjust all dependencies.
2491 * src/lalr.c (initialize_lookaheads): Split into...
2492 (states_lookaheads_count, states_lookaheads_initialize): these.
2493 (lalr): Adjust.
2494
24952002-06-15 Akim Demaille <akim@epita.fr>
2496
2497 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
2498 out of...
2499 (grammar_rules_print): here.
2500 * src/reduce.c (reduce_output): Use it.
2501 * tests/reduce.at (Useless Rules, Reduced Automaton)
2502 (Underivable Rules): Adjust.
2503
25042002-06-15 Akim Demaille <akim@epita.fr>
2505
2506 Copy BYacc's nice way to report the grammar.
2507
2508 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
2509 New.
2510 Don't print the rules' location, it is confusing and useless.
2511 (rule_print): Use grammar_rhs_print.
2512 * src/print.c (print_grammar): Use grammar_rules_print.
2513
25142002-06-15 Akim Demaille <akim@epita.fr>
2515
2516 Complete and rationalize `useless thing' warnings.
2517
2518 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
2519 (symbol_tag_print): New.
2520 Use them everywhere in place of accessing directly the tag member.
2521 * src/gram.h, src/gram.c (rule_print): New.
2522 Use it where a rule used to be printed `by hand'.
2523 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
2524 (reduce_grammar_tables): Report the useless rules.
2525 (reduce_print): Useless things are a warning, not an error.
2526 Report it as such.
2527 * tests/reduce.at (Useless Nonterminals, Useless Rules):
2528 (Reduced Automaton, Underivable Rules): Adjust.
2529 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
2530 * tests/conflicts.at (Unresolved SR Conflicts)
2531 (Solved SR Conflicts): Adjust.
2532
25332002-06-15 Akim Demaille <akim@epita.fr>
2534
2535 Let symbols have a location.
2536
2537 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
2538 (getsym): Adjust.
2539 Adjust all callers.
2540 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
2541 Use location_t, not int.
2542 * src/symtab.c (symbol_check_defined): Take advantage of the
2543 location.
2544 * tests/regression.at (Invalid inputs): Adjust.
2545
25462002-06-15 Akim Demaille <akim@epita.fr>
2547
2548 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
2549 (input): Don't try to initialize yylloc here, do it in the
2550 scanner.
2551 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
2552 * src/gram.h (rule_t): Change line and action_line into location
2553 and action_location, of location_t type.
2554 Adjust all dependencies.
2555 * src/location.h, src/location.c (empty_location): New.
2556 * src/reader.h, src/reader.c (grammar_start_symbol_set)
2557 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
2558 (grammar_current_rule_symbol_append)
2559 (grammar_current_rule_action_append): Expect a location as argument.
2560 * src/reader.c (grammar_midrule_action): Adjust to attach an
2561 action's location as dummy symbol location.
2562 * src/symtab.h, src/symtab.c (startsymbol_location): New.
2563 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
2564 the line numbers.
2565
25662002-06-14 Akim Demaille <akim@epita.fr>
2567
2568 Grammar declarations may be found in the grammar section.
2569
2570 * src/parse-gram.y (rules_or_grammar_declaration): New.
2571 (declarations): Each declaration may end with a semicolon, not
2572 just...
2573 (grammar_declaration): `"%union"'.
2574 (grammar): Branch to rules_or_grammar_declaration.
2575
25762002-06-14 Akim Demaille <akim@epita.fr>
2577
2578 * src/main.c (main): Invoke scanner_free.
2579
25802002-06-14 Akim Demaille <akim@epita.fr>
2581
2582 * src/output.c (m4_invoke): Extracted from...
2583 (output_skeleton): here.
2584 Free tempfile.
2585
25862002-06-14 Akim Demaille <akim@epita.fr>
2587
2588 * src/parse-gram.y (directives, directive, gram)
2589 (grammar_directives, precedence_directives, precedence_directive):
2590 Rename as...
2591 (declarations, declaration, grammar, grammar_declaration)
2592 (precedence_declaration, precedence_declarator): these.
2593 (symbol_declaration): New.
2594
25952002-06-14 Akim Demaille <akim@epita.fr>
2596
2597 * src/files.c (action_obstack): Remove, unused.
2598 (output_obstack): Remove it, and all its dependencies, as it is no
2599 longer needed.
2600 * src/reader.c (epilogue_set): Build the epilogue in the
2601 muscle_obstack.
2602 * src/output.h, src/output.c (muscle_obstack): Move to...
2603 * src/muscle_tab.h, src/muscle_tab.h: here.
2604 (muscle_init): Initialize muscle_obstack.
2605 (muscle_free): New.
2606 * src/main.c (main): Call it.
2607
26082002-06-14 Akim Demaille <akim@epita.fr>
2609
2610 * src/location.h: New, extracted from...
2611 * src/reader.h: here.
2612 * src/Makefile.am (noinst_HEADERS): Merge into
2613 (bison_SOURCES): this.
2614 Add location.h.
2615 * src/parse-gram.y: Use location_t instead of Bison's.
2616 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
2617 Use location_t instead of ints.
2618
26192002-06-14 Akim Demaille <akim@epita.fr>
2620
2621 * data/bison.simple, data/bison.c++: Be sure to restore the
2622 current #line when returning to the skeleton contents after having
2623 exposed the input file's #line.
2624
26252002-06-12 Akim Demaille <akim@epita.fr>
2626
2627 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
2628 eager.
2629 * tests/actions.at (Exotic Dollars): New.
2630
26312002-06-12 Akim Demaille <akim@epita.fr>
2632
2633 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
2634 ['"/] too eagerly.
2635 * tests/input.at (Torturing the Scanner): New.
2636
26372002-06-11 Akim Demaille <akim@epita.fr>
2638
2639 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
2640 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
2641 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
2642 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
2643 * src/reader.c (reader): Use it.
2644
26452002-06-11 Akim Demaille <akim@epita.fr>
2646
2647 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
2648 Adjust all callers.
2649 (scanner_last_string_free): New.
2650
26512002-06-11 Akim Demaille <akim@epita.fr>
2652
2653 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
2654 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
2655 (last_string, YY_OBS_FREE): New.
2656 Use them when returning an ID.
2657
26582002-06-11 Akim Demaille <akim@epita.fr>
2659
2660 Have Bison grammars parsed by a Bison grammar.
2661
2662 * src/reader.c, src/reader.h (prologue_augment): New.
2663 * src/reader.c (copy_definition): Remove.
2664
2665 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
2666 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
2667 (grammar_current_rule_prec_set, grammar_current_rule_check)
2668 (grammar_current_rule_symbol_append)
2669 (grammar_current_rule_action_append): Export.
2670 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
2671 (symbol_list_action_append): Remove.
2672 Hook the routines from reader.
2673 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
2674 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
2675
2676 * src/reader.c (read_declarations): Remove, unused.
2677
2678 * src/parse-gram.y: Handle the epilogue.
2679 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
2680 (grammar_start_symbol_set): this.
2681 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
2682 * src/reader.c (readgram): Remove, unused.
2683 (reader): Adjust to insert eoftoken and axiom where appropriate.
2684
2685 * src/reader.c (copy_dollar): Replace with...
2686 * src/scan-gram.h (handle_dollar): this.
2687 * src/parse-gram.y: Remove `%thong'.
2688
2689 * src/reader.c (copy_at): Replace with...
2690 * src/scan-gram.h (handle_at): this.
2691
2692 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
2693 New.
2694
2695 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
2696 time being.
2697
2698 * src/reader.h, src/reader.c (grammar_rule_end): New.
2699
2700 * src/parse.y (current_type, current_class): New.
2701 Implement `%nterm', `%token' support.
2702 Merge `%term' into `%token'.
2703 (string_as_id): New.
2704 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
2705 type name.
2706
2707 * src/parse-gram.y: Be sure to handle properly the beginning of
2708 rules.
2709
2710 * src/parse-gram.y: Handle %type.
2711 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
2712
2713 * src/parse-gram.y: More directives support.
2714 * src/options.c: No longer handle source directives.
2715
2716 * src/parse-gram.y: Fix %output.
2717
2718 * src/parse-gram.y: Handle %union.
2719 Use the prologue locations.
2720 * src/reader.c (parse_union_decl): Remove.
2721
2722 * src/reader.h, src/reader.c (epilogue_set): New.
2723 * src/parse-gram.y: Use it.
2724
2725 * data/bison.simple, data/bison.c++: b4_stype is now either not
2726 defined, then default to int, or to the contents of %union,
2727 without `union' itself.
2728 Adjust.
2729 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
2730
2731 * src/output.c (actions_output): Don't output braces, as they are
2732 already handled by the scanner.
2733
2734 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
2735 characters to themselves.
2736
2737 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
2738 that the epilogue has a proper #line.
2739
2740 * src/parse-gram.y: Handle precedence/associativity.
2741
2742 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
2743 a terminal.
2744 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
2745 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
2746 at all to define terminals that cannot be emitted.
2747
2748 * src/scan-gram.l: Escape M4 characters.
2749
2750 * src/scan-gram.l: Working properly with escapes in user
2751 strings/characters.
2752
2753 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
2754 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
2755 grammar.
2756 Use more modest sizes, as for the time being the parser does not
2757 release memory, and therefore the process swallows a huge amount
2758 of memory.
2759
2760 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
2761 stricter %token grammar.
2762
2763 * src/symtab.h (associativity): Add `undef_assoc'.
2764 (symbol_precedence_set): Do nothing when passed an undef_assoc.
2765 * src/symtab.c (symbol_check_alias_consistence): Adjust.
2766
2767 * tests/regression.at (Invalid %directive): Remove, as it is now
2768 meaningless.
2769 (Invalid inputs): Adjust to the new error messages.
2770 (Token definitions): The new grammar doesn't allow too many
2771 eccentricities.
2772
2773 * src/lex.h, src/lex.c: Remove.
2774 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
2775 (copy_character, copy_string2, copy_string, copy_identifier)
2776 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
2777 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
2778 (parse_action): Remove.
2779 * po/POTFILES.in: Adjust.
2780
27812002-06-11 Akim Demaille <akim@epita.fr>
2782
2783 * src/reader.c (parse_action): Don't store directly into the
2784 rule's action member: return the action as a string.
2785 Don't require `rule_length' as an argument: compute it.
2786 (grammar_current_rule_symbol_append)
2787 (grammar_current_rule_action_append): New, eved out from
2788 (readgram): here.
2789 Remove `action_flag', `rulelength', unused now.
2790
27912002-06-11 Akim Demaille <akim@epita.fr>
2792
2793 * src/reader.c (grammar_current_rule_prec_set).
2794 (grammar_current_rule_check): New, eved out from...
2795 (readgram): here.
2796 Remove `xaction', `first_rhs': useless.
2797 * tests/input.at (Type clashes): New.
2798 * tests/existing.at (GNU Cim Grammar): Adjust.
2799
28002002-06-11 Akim Demaille <akim@epita.fr>
2801
2802 * src/reader.c (grammar_midrule_action): New, Eved out from
2803 (readgram): here.
2804
28052002-06-11 Akim Demaille <akim@epita.fr>
2806
2807 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
2808 New.
2809 (readgram): Use them as replacement of inlined code, crule and
2810 crule1.
2811
28122002-06-11 Akim Demaille <akim@epita.fr>
2813
2814 * src/reader.c (grammar_end, grammar_symbol_append): New.
2815 (readgram): Use them.
2816 Make the use of `p' as local as possible.
2817
28182002-06-10 Akim Demaille <akim@epita.fr>
2819
2820 GCJ's parser requires the tokens to be defined before the prologue.
2821
2822 * data/bison.simple: Output the token definition before the user's
2823 prologue.
2824 * tests/regression.at (Braces parsing, Duplicate string)
2825 (Mixing %token styles): Check the output from bison.
2826 (Early token definitions): New.
2827
28282002-06-10 Akim Demaille <akim@epita.fr>
2829
2830 * src/symtab.c (symbol_user_token_number_set): Don't complain when
2831 assigning twice the same user number to a token, so that we can
2832 use it in...
2833 * src/lex.c (lex): here.
2834 Also use `symbol_class_set' instead of hand written code.
2835 * src/reader.c (parse_assoc_decl): Likewise.
2836
28372002-06-10 Akim Demaille <akim@epita.fr>
2838
2839 * src/symtab.c, src/symtab.c (symbol_class_set)
2840 (symbol_user_token_number_set): New.
2841 * src/reader.c (parse_token_decl): Use them.
2842 Use a switch instead of ifs.
2843 Use a single argument.
2844
28452002-06-10 Akim Demaille <akim@epita.fr>
2846
2847 Remove `%thong' support as it is undocumented, unused, duplicates
2848 `%token's job, and creates useless e-mail traffic with people who
2849 want to know what it is, why it is undocumented, unused, and
2850 duplicates `%token's job.
2851
2852 * src/reader.c (parse_thong_decl): Remove.
2853 * src/options.c (option_table): Remove "thong".
2854 * src/lex.h (tok_thong): Remove.
2855
28562002-06-10 Akim Demaille <akim@epita.fr>
2857
2858 * src/symtab.c, src/symtab.c (symbol_type_set)
2859 (symbol_precedence_set): New.
2860 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
2861 (value_components_used): Remove, unused.
2862
28632002-06-09 Akim Demaille <akim@epita.fr>
2864
2865 Move symbols handling code out of the reader.
2866
2867 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
2868 (axiom): Move to...
2869 * src/symtab.h, src/symtab.c: here.
2870
2871 * src/gram.c (start_symbol): Remove: use startsymbol->number.
2872 * src/reader.c (startval): Rename as...
2873 * src/symtab.h, src/symtab.c (startsymbol): this.
2874 * src/reader.c: Adjust.
2875
2876 * src/reader.c (symbol_check_defined, symbol_make_alias)
2877 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
2878 (token_translations_init)
2879 Move to...
2880 * src/symtab.c: here.
2881 * src/reader.c (packsymbols): Move to...
2882 * src/symtab.h, src/symtab.c (symbols_pack): here.
2883 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
2884 argument.
2885
28862002-06-03 Akim Demaille <akim@epita.fr>
2887
2888 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
2889 then statements.
2890
28912002-06-03 Akim Demaille <akim@epita.fr>
2892
2893 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
2894 structs with non literals.
2895 * src/scan-skel.l: never-interactive.
2896 * src/conflicts.c (enum conflict_resolution_e): No trailing
2897 comma.
2898 * src/getargs.c (usage): Split long literal strings.
2899 Reported by Hans Aberg.
2900
29012002-05-28 Akim Demaille <akim@epita.fr>
2902
2903 * data/bison.c++: Use C++ ostreams.
2904 (cdebug_): New member.
2905
29062002-05-28 Akim Demaille <akim@epita.fr>
2907
2908 * src/output.c (output_skeleton): Be sure to allocate enough room
2909 for `/' _and_ for `\0' in full_skeleton.
2910
29112002-05-28 Akim Demaille <akim@epita.fr>
2912
2913 * data/bison.c++: Catch up with bison.simple:
2914 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2915 and Paul Eggert <eggert@twinsun.com>: `error' handing.
2916 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
2917 and popping traces.
2918
29192002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2920
2921 * src/output.c (output_skeleton): Put an explicit path in front of
2922 the skeleton file name, rather than relying on the -I directory,
2923 to partially alleviate effects of having a skeleton file lying around
2924 in the current directory.
2925
29262002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2927
2928 * src/conflicts.c (log_resolution): Correct typo:
2929 obstack_printf should be obstack_fgrow1.
2930
29312002-05-26 Akim Demaille <akim@epita.fr>
2932
2933 * src/state.h (state_t): `solved_conflicts' is a new member.
2934 * src/LR0.c (new_state): Set it to 0.
2935 * src/conflicts.h, src/conflicts.c (print_conflicts)
2936 (free_conflicts, solve_conflicts): Rename as...
2937 (conflicts_print, conflicts_free, conflicts_solve): these.
2938 Adjust callers.
2939 * src/conflicts.c (enum conflict_resolution_e)
2940 (solved_conflicts_obstack): New, used by...
2941 (log_resolution): this.
2942 Adjust to attach the conflict resolution to each state.
2943 Complete the description with the precedence/associativity
2944 information.
2945 (resolve_sr_conflict): Adjust.
2946 * src/print.c (print_state): Output its solved_conflicts.
2947 * tests/conflicts.at (Unresolved SR Conflicts)
2948 (Solved SR Conflicts): Exercise --report=all.
2949
29502002-05-26 Akim Demaille <akim@epita.fr>
2951
2952 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
2953 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
2954 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
2955 (token_number_t, item_number_as_token_number)
2956 (token_number_as_item_number, muscle_insert_token_number_table):
2957 Rename as...
2958 (symbol_number_t, item_number_as_symbol_number)
2959 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
2960 these, since it is more appropriate.
2961
29622002-05-26 Akim Demaille <akim@epita.fr>
2963
2964 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
2965 `Error:' lines.
2966 * data/bison.simple (yystos) [YYDEBUG]: New.
2967 (yyparse) [YYDEBUG]: Display the symbols which are popped during
2968 error recovery.
2969 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
2970
29712002-05-25 Akim Demaille <akim@epita.fr>
2972
2973 * doc/bison.texinfo (Debugging): Split into...
2974 (Tracing): this new section, its former contents, and...
2975 (Understanding): this new section.
2976 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
2977 by...
2978 (report_flag): this.
2979 Adjust all dependencies.
2980 (report_args, report_types, report_argmatch): New.
2981 (usage, getargs): Report/support -r, --report.
2982 * src/options.h
2983 (struct option_table_struct): Rename as..,
2984 (struct option_table_s): this.
2985 Rename the `set_flag' member to `flag' to match with getopt_long's
2986 struct.
2987 * src/options.c (option_table): Split verbose into an entry for
2988 %verbose, and another for --verbose.
2989 Support --report/-r, so remove -r from the obsolete --raw.
2990 * src/print.c: Attach full item sets and lookaheads reports to
2991 report_flag instead of trace_flag.
2992 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
2993
29942002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
2995 and Paul Eggert <eggert@twinsun.com>
2996
2997 * data/bison.simple (yyparse): Correct error handling to conform to
2998 POSIX and yacc. Specifically, after syntax error is discovered,
2999 do not reduce further before shifting the error token.
3000 Clean up the code a bit by removing the labels yyerrdefault,
3001 yyerrhandle, yyerrpop.
3002 * NEWS: Document the above.
3003
30042002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
3005
3006 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
3007 type; it isn't always big enough, since it doesn't necessarily
3008 include non-terminals.
3009 (yytranslate): Expand definition of yy_token_number_type, so that
3010 the latter can be removed.
3011 (yy_token_number_type): Remove, only one use.
3012 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
3013 don't use TokenNumberType as element type.
3014
3015 * tests/regression.at: Modify expected output to agree with change
3016 to yyr1 and yytranslate.
3017
30182002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
3019
3020 * src/reader.c (parse_action): Use copy_character instead of
3021 obstack_1grow.
3022
30232002-05-13 Akim Demaille <akim@epita.fr>
3024
3025 * tests/regression.at (Token definitions): Prototype yylex and
3026 yyerror.
3027
30282002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
3029
3030 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
3031 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
3032 32-bit arithmetic.
3033 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
3034
30352002-05-07 Akim Demaille <akim@epita.fr>
3036
3037 * tests/synclines.at: Be sure to prototype yylex and yyerror to
3038 avoid GCC warnings.
3039
30402002-05-07 Akim Demaille <akim@epita.fr>
3041
3042 Kill GCC warnings.
3043
3044 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
3045 over the RHS of each rule.
3046 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
3047 * src/state.h (state_t): Member `nitems' is unsigned short.
3048 * src/LR0.c (get_state): Adjust.
3049 * src/reader.c (packgram): Likewise.
3050 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
3051 `Type'.
3052 (muscle_insert_int_table): Remove, unused.
3053 (prepare_rules): Remove `max'.
3054
30552002-05-06 Akim Demaille <akim@epita.fr>
3056
3057 * src/closure.c (print_firsts): Display of the symbol tags.
3058 (bitmatrix_print): Move to...
3059 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
3060 here.
3061 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
3062
30632002-05-06 Akim Demaille <akim@epita.fr>
3064
3065 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
3066 hash_do_for_each.
3067
30682002-05-06 Akim Demaille <akim@epita.fr>
3069
3070 * src/LR0.c (new_state, get_state): Instead of using the global
3071 `kernel_size' and `kernel_base', have two new arguments:
3072 `core_size' and `core'.
3073 Adjust callers.
3074
30752002-05-06 Akim Demaille <akim@epita.fr>
3076
3077 * src/reader.c (packgram): No longer end `ritem' with a 0
3078 sentinel: it is not used.
3079
30802002-05-05 Akim Demaille <akim@epita.fr>
3081
3082 New experimental feature: display the lookaheads in the report and
3083 graph.
3084
3085 * src/print (print_core): When --trace-flag, display the rules
3086 lookaheads.
3087 * src/print_graph.c (print_core): Likewise.
3088 Swap the arguments.
3089 Adjust caller.
3090
30912002-05-05 Akim Demaille <akim@epita.fr>
3092
3093 * tests/torture.at (Many lookaheads): New test.
3094
30952002-05-05 Akim Demaille <akim@epita.fr>
3096
3097 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
3098 (GENERATE_MUSCLE_INSERT_TABLE): this.
3099 (output_int_table, output_unsigned_int_table, output_short_table)
3100 (output_token_number_table, output_item_number_table): Replace with...
3101 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
3102 (muscle_insert_short_table, muscle_insert_token_number_table)
3103 (muscle_insert_item_number_table): these.
3104 Adjust all callers.
3105 (prepare_tokens): Don't free `translations', since...
3106 * src/reader.h, src/reader.c (grammar_free): do it.
3107 Move to...
3108 * src/gram.h, src/gram.c (grammar_free): here.
3109 * data/bison.simple, data/bison.c++: b4_token_number_max is now
3110 b4_translate_max.
3111
31122002-05-05 Akim Demaille <akim@epita.fr>
3113
3114 * src/output.c (output_unsigned_int_table): New.
3115 (prepare_rules): `i' is unsigned.
3116 `prhs', `rline', `r2' are unsigned int.
3117 Rename muscle `rhs_number_max' as `rhs_max'.
3118 Output muscles `prhs_max', `rline_max', and `r2_max'.
3119 Free rline and r1.
3120 * data/bison.simple, data/bison.c++: Adjust to use these muscles
3121 to compute types instead of constant types.
3122 * tests/regression.at (Web2c Actions): Adjust.
3123
31242002-05-04 Akim Demaille <akim@epita.fr>
3125
3126 * src/symtab.h (SALIAS, SUNDEF): Rename as...
3127 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
3128 Adjust dependencies.
3129 * src/output.c (token_definitions_output): Be sure not to output a
3130 `#define 'a'' when fed with `%token 'a' "a"'.
3131 * tests/regression.at (Token definitions): New.
3132
31332002-05-03 Paul Eggert <eggert@twinsun.com>
3134
3135 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
3136 for K&R C.
3137
31382002-05-03 gettextize <bug-gnu-gettext@gnu.org>
3139
3140 * Makefile.am (SUBDIRS): Remove intl.
3141 (EXTRA_DIST): Add config/config.rpath.
3142
31432002-05-03 Akim Demaille <akim@epita.fr>
3144
3145 * data/bison.simple (m4_if): Don't output empty enums.
3146 And actually, output valid enum definitions :(.
3147
31482002-05-03 Akim Demaille <akim@epita.fr>
3149
3150 * configure.bat: Remove, completely obsolete.
3151 * Makefile.am (EXTRA_DIST): Adjust.
3152 Don't distribute config.rpath...
3153 * config/Makefile.am (EXTRA_DIST): Do it.
3154
31552002-05-03 Akim Demaille <akim@epita.fr>
3156
3157 * configure.in (GETTEXT_VERSION): New.
3158 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
3159
31602002-05-03 Akim Demaille <akim@epita.fr>
3161
3162 * data/bison.simple (b4_token_enum): New.
3163 (b4_token_defines): Use it to output tokens both as #define and
3164 enums.
3165 Suggested by Paul Eggert.
3166 * src/output.c (token_definitions_output): Don't output spurious
3167 white spaces.
3168
31692002-05-03 Akim Demaille <akim@epita.fr>
3170
3171 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
3172
31732002-05-02 Robert Anisko <robert@lrde.epita.fr>
3174
3175 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
3176 Update the stack class, give a try to deque as the default container.
3177
31782002-05-02 Akim Demaille <akim@epita.fr>
3179
3180 * data/bison.simple (yyparse): Do not implement @$ = @1.
3181 (YYLLOC_DEFAULT): Adjust to do it.
3182 * doc/bison.texinfo (Location Default Action): Fix.
3183
31842002-05-02 Akim Demaille <akim@epita.fr>
3185
3186 * src/reader.c (parse_braces): Merge into...
3187 (parse_action): this.
3188
31892002-05-02 Akim Demaille <akim@epita.fr>
3190
3191 * configure.in (ALL_LINGUAS): Remove.
3192 * po/LINGUAS, hr.po: New.
3193
31942002-05-02 Akim Demaille <akim@epita.fr>
3195
3196 Remove the so called hairy (semantic) parsers.
3197
3198 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
3199 * src/gram.h, src/gram.c (semantic_parser): Remove.
3200 (rule_t): Remove the guard and guard_line members.
3201 * src/lex.h (token_t): remove tok_guard.
3202 * src/options.c (option_table): Remove %guard and %semantic_parser
3203 support.
3204 * src/output.c, src/output.h (guards_output): Remove.
3205 (prepare): Adjust.
3206 (token_definitions_output): Don't output the `T'
3207 tokens (???).
3208 (output_skeleton): Don't output the guards.
3209 * src/files.c, src/files.c (attrsfile): Remove.
3210 * src/reader.c (symbol_list): Remove the guard and guard_line
3211 members.
3212 Adjust dependencies.
3213 (parse_guard): Remove.
3214 * data/bison.hairy: Remove.
3215 * doc/bison.texinfo (Environment Variables): Remove occurrences of
3216 BISON_HAIRY.
3217
32182002-05-02 Akim Demaille <akim@epita.fr>
3219
3220 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
3221 (parse_guard): Rename the formal argument `stack_offset' as
3222 `rule_length', which is more readable.
3223 Adjust callers.
3224 (copy_at, copy_dollar): Instead of outputting the hard coded
3225 values of $$, $n and so forth, output invocation to b4_lhs_value,
3226 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
3227 Note: this patch partially drops `semantic-parser' support: it
3228 always does `rule_length - n', where semantic parsers ought to
3229 always use `-n'.
3230 * data/bison.simple, data/bison.c++ (b4_lhs_value)
3231 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
3232
32332002-05-02 Akim Demaille <akim@epita.fr>
3234
3235 * configure.in (AC_INIT): Bump to 1.49b.
3236 (AM_INIT_AUTOMAKE): Short invocation.
3237
32382002-05-02 Akim Demaille <akim@epita.fr>
3239
3240 Version 1.49a.
3241
32422002-05-01 Akim Demaille <akim@epita.fr>
3243
3244 * src/skeleton.h: Remove.
3245
32462002-05-01 Akim Demaille <akim@epita.fr>
3247
3248 * src/skeleton.h: Fix the #endif.
3249 Reported by Magnus Fromreide.
3250
32512002-04-26 Paul Eggert <eggert@twinsun.com>
3252
3253 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
3254 Define if we define YYSTYPE and YYLTYPE, respectively.
3255 (YYCOPY): Fix [] quoting problem in the non-GCC case.
3256
32572002-04-25 Robert Anisko <robert@lrde.epita.fr>
3258
3259 * src/scan-skel.l: Postprocess quadrigraphs.
3260
3261 * src/reader.c (copy_character): New function, used to output
3262 single characters while replacing `[' and `]' with quadrigraphs, to
3263 avoid troubles with M4 quotes.
3264 (copy_comment): Output characters with copy_character.
3265 (read_additionnal_code): Likewise.
3266 (copy_string2): Likewise.
3267 (copy_definition): Likewise.
3268
3269 * tests/calc.at: Exercise M4 quoting.
3270
32712002-04-25 Akim Demaille <akim@epita.fr>
3272
3273 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
3274 between `!' and the command.
3275 Reported by Paul Eggert.
3276
32772002-04-24 Robert Anisko <robert@lrde.epita.fr>
3278
3279 * tests/calc.at: Exercise prologue splitting.
3280
3281 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
3282 `b4_post_prologue' instead of `b4_prologue'.
3283
3284 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
3285 muscles.
3286 (output): Free pre_prologue_obstack and post_prologue_obstack.
3287 * src/files.h, src/files.c (attrs_obstack): Remove.
3288 (pre_prologue_obstack, post_prologue_obstack): New.
3289 * src/reader.c (copy_definition): Add a parameter to specify the
3290 obstack to fill, instead of using attrs_obstack unconditionally.
3291 (read_declarations): Pass pre_prologue_obstack to copy_definition if
3292 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
3293
32942002-04-23 Paul Eggert <eggert@twinsun.com>
3295
3296 * data/bison.simple: Remove unnecessary commentary and white
3297 space differences from 1_29-branch.
3298 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
3299
3300 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
3301 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
3302 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
3303 constructors or destructors.
3304
3305 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
3306
33072002-04-23 Akim Demaille <akim@epita.fr>
3308
3309 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
3310 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
3311 location with columns.
3312 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
3313 All reported by Paul Eggert.
3314
33152002-04-22 Akim Demaille <akim@epita.fr>
3316
3317 * src/reduce.c (dump_grammar): Move to...
3318 * src/gram.h, src/gram.c (grammar_dump): here.
3319 Be sure to separate long item numbers.
3320 Don't read the members of a rule's prec if its nil.
3321
33222002-04-22 Akim Demaille <akim@epita.fr>
3323
3324 * src/output.c (table_size, table_grow): New.
3325 (MAXTABLE): Remove, replace uses with table_size.
3326 (pack_vector): Instead of dying when the table is too big, grow it.
3327
33282002-04-22 Akim Demaille <akim@epita.fr>
3329
3330 * data/bison.simple (yyr1): Its type is that of a token number.
3331 * data/bison.c++ (r1_): Likewise.
3332 * tests/regression.at (Web2c Actions): Adjust.
3333
33342002-04-22 Akim Demaille <akim@epita.fr>
3335
3336 * src/reader.c (token_translations_init): 256 is now the default
3337 value for the error token, i.e., it will be assigned another
3338 number if the user assigned 256 to one of her tokens.
3339 (reader): Don't force 256 to error.
3340 * doc/bison.texinfo (Symbols): Adjust.
3341 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
3342 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
3343 etc. instead of 10, 20, 30 (which was used to `jump' over error
3344 (256) and undefined (2)).
3345
33462002-04-22 Akim Demaille <akim@epita.fr>
3347
3348 Propagate more token_number_t.
3349
3350 * src/gram.h (token_number_as_item_number)
3351 (item_number_as_token_number): New.
3352 * src/output.c (GENERATE_OUTPUT_TABLE): New.
3353 Use it to create output_item_number_table and
3354 output_token_number_table.
3355 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
3356 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
3357 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
3358 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
3359
33602002-04-22 Akim Demaille <akim@epita.fr>
3361
3362 * src/output.h, src/output.c (get_lines_number): Remove.
3363
33642002-04-19 Akim Demaille <akim@epita.fr>
3365
3366 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
3367 as Lex/Flex'.
3368 (Debugging): More details about enabling the debugging features.
3369 (Table of Symbols): Describe $$, $n, @$, and @n.
3370 Suggested by Tim Josling.
3371
33722002-04-19 Akim Demaille <akim@epita.fr>
3373
3374 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
3375
33762002-04-10 Akim Demaille <akim@epita.fr>
3377
3378 * src/system.h: Rely on HAVE_LIMITS_H.
3379 Suggested by Paul Eggert.
3380
33812002-04-09 Akim Demaille <akim@epita.fr>
3382
3383 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
3384 full stderr, and strip it according to the bison options, instead
3385 of composing the error message from different bits.
3386 This makes it easier to check for several error messages.
3387 Adjust all the invocations.
3388 Add an invocation exercising the error token.
3389 Add an invocation demonstrating a stupid error message.
3390 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
3391 Adjust the tests.
3392 Error message are for stderr, not stdout.
3393
33942002-04-09 Akim Demaille <akim@epita.fr>
3395
3396 * src/gram.h, src/gram.c (error_token_number): Remove, use
3397 errtoken->number.
3398 * src/reader.c (reader): Don't specify the user token number (2)
3399 for $undefined, as it uselessly prevents using it.
3400 * src/gram.h (token_number_t): Move to...
3401 * src/symtab.h: here.
3402 (state_t.number): Is a token_number_t.
3403 * src/print.c, src/reader.c: Use undeftoken->number instead of
3404 hard coded 2.
3405 (Even though this 2 is not the same as above: the number of the
3406 undeftoken remains being 2, it is its user token number which
3407 might not be 2).
3408 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
3409 `user_token_number_max'.
3410 Output `undef_token_number'.
3411 * data/bison.simple, data/bison.c++: Use them.
3412 Be sure to map invalid yylex return values to
3413 `undef_token_number'. This saves us from gratuitous SEGV.
3414
3415 * tests/conflicts.at (Solved SR Conflicts)
3416 (Unresolved SR Conflicts): Adjust.
3417 * tests/regression.at (Web2c Actions): Adjust.
3418
34192002-04-08 Akim Demaille <akim@epita.fr>
3420
3421 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
3422 Adding #line.
3423 Remove the duplicate `typedefs'.
3424 (RhsNumberType): Fix the declaration and various other typos.
3425 Use __ofile__.
3426 * data/bison.simple: Use __ofile__.
3427 * src/scan-skel.l: Handle __ofile__.
3428
34292002-04-08 Akim Demaille <akim@epita.fr>
3430
3431 * src/gram.h (item_number_t): New, the type of item numbers in
3432 RITEM. Note that it must be able to code symbol numbers as
3433 positive number, and the negation of rule numbers as negative
3434 numbers.
3435 Adjust all dependencies (pretty many).
3436 * src/reduce.c (rule): Remove this `short *' pointer: use
3437 item_number_t.
3438 * src/system.h (MINSHORT, MAXSHORT): Remove.
3439 Include `limits.h'.
3440 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
3441 (shortcpy): Remove.
3442 (MAXTABLE): Move to...
3443 * src/output.c (MAXTABLE): here.
3444 (prepare_rules): Use output_int_table to output rhs.
3445 * data/bison.simple, data/bison.c++: Adjust.
3446 * tests/torture.at (Big triangle): Move the limit from 254 to
3447 500.
3448 * tests/regression.at (Web2c Actions): Ajust.
3449
3450 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
3451 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
3452 passes, but produces negative #line number, once fixed, GCC is
3453 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
3454 C), it passes.
3455 * src/state.h (state_h): Code input lines on ints, not shorts.
3456
34572002-04-08 Akim Demaille <akim@epita.fr>
3458
3459 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
3460 and then the grammar.
3461
34622002-04-08 Akim Demaille <akim@epita.fr>
3463
3464 * src/system.h: No longer using strndup.
3465
34662002-04-07 Akim Demaille <akim@epita.fr>
3467
3468 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
3469 * src/output.c (output_table_data): Return the longest number.
3470 (prepare_tokens): Output `token_number_max').
3471 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
3472 New.
3473 Use them to define yy_token_number_type/TokenNumberType.
3474 Use this type for yytranslate.
3475 * tests/torture.at (Big triangle): Push the limit from 124 to
3476 253.
3477 * tests/regression.at (Web2c Actions): Adjust.
3478
34792002-04-07 Akim Demaille <akim@epita.fr>
3480
3481 * tests/torture.at (Big triangle): New.
3482 (GNU AWK Grammar, GNU Cim Grammar): Move to...
3483 * tests/existing.at: here.
3484
34852002-04-07 Akim Demaille <akim@epita.fr>
3486
3487 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
3488 nritems.
3489 Adjust dependencies.
3490
34912002-04-07 Akim Demaille <akim@epita.fr>
3492
3493 * src/reader.c: Normalize increments to prefix form.
3494
34952002-04-07 Akim Demaille <akim@epita.fr>
3496
3497 * src/reader.c, symtab.c: Remove debugging code.
3498
34992002-04-07 Akim Demaille <akim@epita.fr>
3500
3501 Rename all the `bucket's as `symbol_t'.
3502
3503 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
3504 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
3505 * src/symtab.c, src/symtab.h (bucket): Rename as...
3506 (symbol_t): this.
3507 (symbol_list_new, bucket_check_defined, bucket_make_alias)
3508 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
3509 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
3510 (buckets_new, buckets_free, buckets_do): Rename as...
3511 (symbol_list_new, symbol_check_defined, symbol_make_alias)
3512 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
3513 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
3514 (symbols_new, symbols_free, symbols_do): these.
3515
35162002-04-07 Akim Demaille <akim@epita.fr>
3517
3518 Use lib/hash for the symbol table.
3519
3520 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
3521 EOF.
3522 * src/lex.c (lex): Set the `number' member of new terminals.
3523 * src/reader.c (bucket_check_defined, bucket_make_alias)
3524 (bucket_check_alias_consistence, bucket_translation): New.
3525 (reader, grammar_free, readgram, token_translations_init)
3526 (packsymbols): Adjust.
3527 (reader): Number the predefined tokens.
3528 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
3529 for predefined tokens.
3530 * src/symtab.h (bucket): Remove all the hash table related
3531 members.
3532 * src/symtab.c (symtab): Replace by...
3533 (bucket_table): this.
3534 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
3535 (buckets_new, buckets_do): New.
3536
35372002-04-07 Akim Demaille <akim@epita.fr>
3538
3539 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
3540 (start_symbol, max_user_token_number, semantic_parser)
3541 (error_token_number): Initialize.
3542 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
3543 Initialize.
3544 (reader): Don't.
3545 (errtoken, eoftoken, undeftoken, axiom): Extern.
3546
35472002-04-07 Akim Demaille <akim@epita.fr>
3548
3549 * src/gram.h (rule_s): prec and precsym are now pointers
3550 to the bucket giving the priority/associativity.
3551 Member `associativity' removed: useless.
3552 * src/reduce.c, src/conflicts.c: Adjust.
3553
35542002-04-07 Akim Demaille <akim@epita.fr>
3555
3556 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
3557 Properly escape the symbols' TAG when outputting them.
3558
35592002-04-07 Akim Demaille <akim@epita.fr>
3560
3561 * src/lalr.h (LA): Is a bitsetv, not bitset*.
3562
35632002-04-07 Akim Demaille <akim@epita.fr>
3564
3565 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
3566 (LArule): this, which is an array to rule_t*.
3567 * src/print.c, src/conflicts.c: Adjust.
3568
35692002-04-07 Akim Demaille <akim@epita.fr>
3570
3571 * src/gram.h (rule_t): Rename `number' as `user_number'.
3572 `number' is a new member.
3573 Adjust dependencies.
3574 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
3575
35762002-04-07 Akim Demaille <akim@epita.fr>
3577
3578 As a result of the previous patch, it is no longer needed
3579 to reorder ritem itself.
3580
3581 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
3582
35832002-04-07 Akim Demaille <akim@epita.fr>
3584
3585 Be sure never to walk through RITEMS, but use only data related to
3586 the rules themselves. RITEMS should be banished.
3587
3588 * src/output.c (output_token_translations): Rename as...
3589 (prepare_tokens): this.
3590 In addition to `translate', prepare the muscles `tname' and
3591 `toknum', which were handled by...
3592 (output_rule_data): this.
3593 Remove, and move the remainder of its outputs into...
3594 (prepare_rules): this new routines, which also merges content from
3595 (output_gram): this.
3596 (prepare_rules): Be sure never to walk through RITEMS.
3597 (output_stos): Rename as...
3598 (prepare_stos): this.
3599 (output): Always invoke prepare_states, after all, just don't use it
3600 in the output if you don't need it.
3601
36022002-04-07 Akim Demaille <akim@epita.fr>
3603
3604 * src/LR0.c (new_state): Display `nstates' as the name of the
3605 newly created state.
3606 Adjust to initialize first_state and last_state if needed.
3607 Be sure to distinguish the initial from the final state.
3608 (new_states): Create the itemset of the initial state, and use
3609 new_state.
3610 * src/closure.c (closure): Now that the initial state has its
3611 items properly set, there is no need for a special case when
3612 creating `ruleset'.
3613
3614 As a result, now the rule 0, reducing to $axiom, is visible in the
3615 outputs. Adjust the test suite.
3616
3617 * tests/conflicts.at (Solved SR Conflicts)
3618 (Unresolved SR Conflicts): Adjust.
3619 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
3620 * tests/conflicts.at (S/R in initial): New.
3621
36222002-04-07 Akim Demaille <akim@epita.fr>
3623
3624 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
3625 the RHS of the rules.
3626 * src/output.c (output_gram): Likewise.
3627
36282002-04-07 Akim Demaille <akim@epita.fr>
3629
3630 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
3631 bucket.
3632 Adjust all dependencies.
3633 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
3634 `number' of the buckets too.
3635 * src/gram.h: Include `symtab.h'.
3636 (associativity): Move to...
3637 * src/symtab.h: here.
3638 No longer include `gram.h'.
3639
36402002-04-07 Akim Demaille <akim@epita.fr>
3641
3642 * src/gram.h, src/gram.c (rules_rhs_length): New.
3643 (ritem_longest_rhs): Use it.
3644 * src/gram.h (rule_t): `number' is a new member.
3645 * src/reader.c (packgram): Set it.
3646 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
3647 the end of `rules', and count them out of `nrules'.
3648 (reduce_output, dump_grammar): Adjust.
3649 * src/print.c (print_grammar): It is no longer needed to check for
3650 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
3651 * tests/reduce.at (Reduced Automaton): New test.
3652
36532002-04-07 Akim Demaille <akim@epita.fr>
3654
3655 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
3656 lacking `+ 1' to nrules, Bison reported as useless a token if it
3657 was used solely to set the precedence of the last rule...
3658
36592002-04-07 Akim Demaille <akim@epita.fr>
3660
3661 * data/bison.c++, data/bison.simple: Don't output the current file
3662 name in #line, to avoid useless diffs between two identical
3663 outputs under different names.
3664
36652002-04-07 Akim Demaille <akim@epita.fr>
3666
3667 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
3668 Normalize loops to using `< nrules + 1', not `<= nrules'.
3669
36702002-04-07 Akim Demaille <akim@epita.fr>
3671
3672 * TODO: Update.
3673
36742002-04-07 Akim Demaille <akim@epita.fr>
3675
3676 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
3677 bucket.value as bucket.number.
3678
36792002-04-07 Akim Demaille <akim@epita.fr>
3680
3681 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
3682 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
3683 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
3684 RHS, instead of being an index in RITEMS.
3685
36862002-04-04 Paul Eggert <eggert@twinsun.com>
3687
3688 * doc/bison.texinfo: Update copyright date.
3689 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
3690 (Symbols): Warn about running Bison in one character set,
3691 but compiling and/or running in an incompatible one.
3692 Warn about character code 256, too.
3693
36942002-04-03 Paul Eggert <eggert@twinsun.com>
3695
3696 * src/bison.data (YYSTACK_ALLOC): Depend on whether
3697 YYERROR_VERBOSE is nonzero, not whether it is defined.
3698
3699 Merge changes from bison-1_29-branch.
3700
37012002-03-20 Paul Eggert <eggert@twinsun.com>
3702
3703 Merge fixes from Debian bison_1.34-1.diff.
3704
3705 * configure.in (AC_PREREQ): 2.53.
3706
37072002-03-20 Akim Demaille <akim@epita.fr>
3708
3709 * src/conflicts.c (log_resolution): Argument `resolution' is const.
3710
37112002-03-19 Paul Eggert <eggert@twinsun.com>
3712
3713 * src/bison.simple (YYCOPY): New macro.
3714 (YYSTACK_RELOCATE): Use it.
3715 Remove Type arg; no longer needed. All callers changed.
3716 (yymemcpy): Remove; no longer needed.
3717
3718 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
3719 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
3720
37212002-03-19 Akim Demaille <akim@epita.fr>
3722
3723 Test and fix the #line outputs.
3724
3725 * tests/atlocal.at (GCC): New.
3726 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
3727 (Prologue synch line, ,%union synch line, Postprologue synch line)
3728 (Action synch line, Epilogue synch line): New tests.
3729 * src/reader.c (parse_union_decl): Define the muscle stype_line.
3730 * data/bison.simple, data/bison.c++: Use it.
3731
37322002-03-19 Akim Demaille <akim@epita.fr>
3733
3734 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
3735 (Solved SR Conflicts, %expect not enough, %expect right)
3736 (%expect too much): Move to...
3737 * tests/conflicts.at: this new file.
3738
37392002-03-19 Akim Demaille <akim@epita.fr>
3740
3741 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
3742 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
3743 that we can move to enums for instance.
3744 * src/output.c (token_definitions_output): Output a list of
3745 `token-name, token-number' instead of the #define.
3746 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
3747
37482002-03-14 Akim Demaille <akim@epita.fr>
3749
3750 Use Gettext 0.11.1.
3751
37522002-03-09 Robert Anisko <robert@lrde.epita.fr>
3753
3754 * data/bison.c++: Make the user able to add members to the generated
3755 parser by subclassing.
3756
37572002-03-05 Robert Anisko <robert@lrde.epita.fr>
3758
3759 * src/reader.c (read_additionnal_code): `c' should be an integer, not
3760 a character.
3761 Reported by Nicolas Tisserand and Nicolas Burrus.
3762
37632002-03-04 Robert Anisko <robert@lrde.epita.fr>
3764
3765 * src/reader.c: Warn about lacking semi-colons, do not complain.
3766
37672002-03-04 Robert Anisko <robert@lrde.epita.fr>
3768
3769 * data/bison.c++: Remove a debug line.
3770
37712002-03-04 Robert Anisko <robert@lrde.epita.fr>
3772
3773 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
3774 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
3775 provide a default implementation.
3776
37772002-03-04 Akim Demaille <akim@epita.fr>
3778
3779 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
3780 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
3781 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
3782 * tests/semantic.at (Parsing Guards): Similarly.
3783 * src/reader.at (readgram): Complain if the last rule is not ended
3784 with a semi-colon.
3785
37862002-03-04 Akim Demaille <akim@epita.fr>
3787
3788 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
3789 * src/closure.c: here.
3790 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
3791 RTC.
3792 * src/warshall.h, src/warshall.c: Remove.
3793 * tests/sets.at (Broken Closure): Adjust.
3794
37952002-03-04 Akim Demaille <akim@epita.fr>
3796
3797 * src/output.c (output_skeleton): tempdir is const.
3798 bytes_read is unused.
3799
38002002-03-04 Akim Demaille <akim@epita.fr>
3801
3802 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
3803 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
3804 Update.
3805 From Michael Hayes.
3806
38072002-03-04 Akim Demaille <akim@epita.fr>
3808
3809 * src/closure.c (closure): `r' is unused.
3810
38112002-03-04 Akim Demaille <akim@epita.fr>
3812
3813 * tests/sets.at (Broken Closure): Add the ending `;'.
3814 * src/reader.at (readgram): Complain if a rule is not ended with a
3815 semi-colon.
3816
38172002-03-04 Akim Demaille <akim@epita.fr>
3818
3819 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
3820 (count_sr_conflicts): Use bitset_count.
3821 * src/reduce.c (inaccessable_symbols): Ditto.
3822 (bits_size): Remove.
3823 * src/warshall.h, src/warshall.c: Convert to bitsetv.
3824
38252002-03-04 Akim Demaille <akim@epita.fr>
3826
3827 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
3828 * src/reduce.c: Remove the `bitset_zero's following the
3829 `bitset_create's, as now it is performed by the latter.
3830
38312002-03-04 Akim Demaille <akim@epita.fr>
3832
3833 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
3834 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
3835 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
3836 latest sources from Michael.
3837
38382002-03-04 Akim Demaille <akim@epita.fr>
3839
3840 * src/output.c (output): Don't free the grammar.
3841 * src/reader.c (grammar_free): New.
3842 * src/main.c (main): Call it and don't free symtab here.
3843
38442002-03-04 Akim Demaille <akim@epita.fr>
3845
3846 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
3847 before returning.
3848 Reported by Benoit Perrot.
3849
38502002-03-04 Akim Demaille <akim@epita.fr>
3851
3852 Use bitset operations when possible, not loops over bits.
3853
3854 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
3855 bitset_or.
3856 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
3857 * src/reduce.c (useless_nonterminals): Formatting changes.
3858 * src/warshall.c (TC): Use bitset_or.
3859
38602002-03-04 Akim Demaille <akim@epita.fr>
3861
3862 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
3863 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
3864 Ditto.
3865
38662002-03-04 Akim Demaille <akim@epita.fr>
3867
3868 * src/lalr.c (F): Now a bitset*.
3869 Adjust all dependencies.
3870
38712002-03-04 Akim Demaille <akim@epita.fr>
3872
3873 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
3874 Adjust all dependencies.
3875
38762002-03-04 Akim Demaille <akim@epita.fr>
3877
3878 * src/L0.c, src/LR0.h (nstates): Be size_t.
3879 Adjust comparisons (signed vs unsigned).
3880 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
3881 bitset*.
3882 Adjust all dependencies.
3883
38842002-03-04 Akim Demaille <akim@epita.fr>
3885
3886 * src/closure.c (firsts): Now, also a bitset.
3887 Adjust all dependencies.
3888 (varsetsize): Remove, now unused.
3889 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
3890
38912002-03-04 Akim Demaille <akim@epita.fr>
3892
3893 * src/print.c: Convert to use bitset.h, not hand coded iterations
3894 over ints.
3895
38962002-03-04 Akim Demaille <akim@epita.fr>
3897
3898 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
3899
39002002-03-04 Akim Demaille <akim@epita.fr>
3901
3902 * src/closure.c (ruleset): Be a bitset.
3903 (rulesetsize): Remove.
3904
39052002-03-04 Akim Demaille <akim@epita.fr>
3906
3907 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
3908 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
3909 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
3910 * src/closure.c (fderives): Be an array of bitsets.
3911
39122002-02-28 Robert Anisko <robert@lrde.epita.fr>
3913
3914 * data/bison.c++: Merge the two generated headers. Insert a copyright
3915 notice in each output file.
3916
39172002-02-28 Akim Demaille <akim@epita.fr>
3918
3919 * data/bison.c++: Copy the prologue of bison.simple to fetch
3920 useful M4 definitions, such as b4_header_guard.
3921
39222002-02-25 Akim Demaille <akim@epita.fr>
3923
3924 * src/getargs.c (version): Give the name of the authors, and use a
3925 translator friendly scheme for the bgr
3926 copyright notice.
3927
39282002-02-25 Akim Demaille <akim@epita.fr>
3929
3930 * src/output.c (header_output): Remove, now handled completely via
3931 M4.
3932
39332002-02-25 Akim Demaille <akim@epita.fr>
3934
3935 * m4/m4.m4: New, from CVS Autoconf.
3936 * configure.in: Invoke it.
3937 * src/output.c (output_skeleton): Use its result instead of the
3938 hard coded name.
3939
39402002-02-25 Akim Demaille <akim@epita.fr>
3941
3942 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
3943 Fileutils 4.1.5.
3944 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
3945 * src/output.c (output_skeleton): Use mkstemp to create a real
3946 temporary file.
3947 Move the filling of `skeleton' and its muscle to...
3948 (prepare): here.
3949 (output): Move the definition of the prologue muscle to...
3950 (prepare): here.
3951 * src/system.h (DEFAULT_TMPDIR): New.
3952
39532002-02-14 Paul Eggert <eggert@twinsun.com>
3954
3955 Remove the support for C++ namespace cleanliness; it was
3956 causing more problems than it was curing, since it didn't work
3957 properly on some nonstandard C++ compilers. This can wait
3958 for a proper C++ parser.
3959
3960 * NEWS: Document this.
3961 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
3962 of C++, as it's treated like C now.
3963 * src/bison.simple (YYSTD): Remove.
3964 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
3965 Treat C++ just like Standard C instead of trying to support
3966 namespace cleanliness.
3967
39682002-02-14 Akim Demaille <akim@epita.fr>
3969
3970 * tests/regression.at (else): Adjust to Andreas' change.
3971
39722002-02-14 Akim Demaille <akim@epita.fr>
3973
3974 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
3975
39762002-02-13 Andreas Schwab <schwab@suse.de>
3977
3978 * src/output.c (output_rule_data): Don't output NULL, it might
3979 not be defined yet.
3980
39812002-02-11 Robert Anisko <robert@lrde.epita.fr>
3982
3983 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
3984 (Copyright notice): Update.
3985
39862002-02-11 Akim Demaille <akim@epita.fr>
3987
3988 * tests/regression.at (%nonassoc and eof): Don't include
3989 nonportable headers.
3990
39912002-02-08 Robert Anisko <robert@lrde.epita.fr>
3992
3993 * data/bison.c++: Correct error recovery. Make the user able to
3994 initialize the starting location.
3995
39962002-02-07 Akim Demaille <akim@epita.fr>
3997
3998 * tests/input.at: New.
3999
40002002-02-07 Robert Anisko <robert@lrde.epita.fr>
4001
4002 * data/bison.c++: Replace some direct m4 expansions by constants. Be
4003 more consistent when naming methods and variables. Put preprocessor
4004 directives around tables only needed for debugging.
4005
40062002-02-07 Robert Anisko <robert@lrde.epita.fr>
4007
4008 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
4009 C++ parsers.
4010 (yy::b4_name::parse): Use print_.
4011
40122002-02-07 Robert Anisko <robert@lrde.epita.fr>
4013
4014 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
4015
40162002-02-07 Robert Anisko <robert@lrde.epita.fr>
4017
4018 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
4019 C++ parsers.
4020 (yy::b4_name::parse): Build verbose error messages, and use error_.
4021
40222002-02-06 Robert Anisko <robert@lrde.epita.fr>
4023
4024 * data/bison.c++: Fix m4 quoting in comments.
4025
40262002-02-06 Robert Anisko <robert@lrde.epita.fr>
4027
4028 * data/bison.c++: Adjust the parser code. Fix some muscles that were
4029 not expanded by m4.
4030
40312002-02-05 Akim Demaille <akim@epita.fr>
4032
4033 * data/bison.c++: Adjust to the M4 back end.
4034 More is certainly needed.
4035
40362002-02-05 Akim Demaille <akim@epita.fr>
4037
4038 Give a try to M4 as a back end.
4039
4040 * lib/readpipe.c: New, from wdiff.
4041 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
4042 BISON_HAIRY.
4043 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
4044 specific values. Now it is m4 that performs the lookup.
4045 * src/parse-skel.y: Remove.
4046 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
4047 * src/output.c (actions_output, guards_output)
4048 (token_definitions_output): No longer keeps track of the output
4049 line number, hence remove the second argument.
4050 (guards_output): Check against the guard member of a rule, not the
4051 action member.
4052 Adjust callers.
4053 (output_skeleton): Don't look for the skeleton location, let m4 do
4054 that.
4055 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
4056 file will be used.
4057 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
4058 (prepare): Given that for the time being changesyntax is not
4059 usable in M4, rename the muscles using `-' to `_'.
4060 Define `defines_flag', `output_parser_name' and `output_header_name'.
4061 * src/output.h (actions_output, guards_output)
4062 (token_definitions_output): Adjust prototypes.
4063 * src/scan-skel.l: Instead of scanning the skeletons, it now
4064 processes the output of m4: `__oline__' and `#output'.
4065 * data/bison.simple: Adjust to be used by M4(sugar).
4066 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
4067 to date.
4068 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
4069 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
4070 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
4071 shamelessly stolen from CVS Autoconf.
4072
40732002-02-05 Akim Demaille <akim@epita.fr>
4074
4075 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
4076 * configure.in: Check for the declarations of free and malloc.
4077 * src/muscle_tab.c: Adjust.
4078
40792002-02-05 Akim Demaille <akim@epita.fr>
4080
4081 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
4082 which have no values.
4083
40842002-02-05 Akim Demaille <akim@epita.fr>
4085
4086 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
4087 * data/: here.
4088
40892002-01-29 Paul Eggert <eggert@twinsun.com>
4090
4091 * src/bison.simple (YYSIZE_T): Do not define merely because
4092 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
4093 On some platforms, <alloca.h> does not declare YYSTD (size_t).
4094
40952002-01-27 Akim Demaille <akim@epita.fr>
4096
4097 Fix `%nonassoc and eof'.
4098
4099 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
4100 which were not properly copied! Replace
4101 memcpy (res->errs, src->errs, src->nerrs);
4102 with
4103 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
4104 !!!
4105 * tests/regression.at (%nonassoc and eof): Adjust to newest
4106 Autotest: `.' is not in the PATH.
4107
41082002-01-27 Akim Demaille <akim@epita.fr>
4109
4110 * tests/sets.at (AT_EXTRACT_SETS): New.
4111 (Nullable): Use it.
4112 (Firsts): New.
4113
41142002-01-26 Akim Demaille <akim@epita.fr>
4115
4116 * tests/actions.at, tests/calc.at, tests/headers.at,
4117 * tests/torture.at: Adjust to the newest Autotest which no longer
4118 forces `.' in the PATH.
4119
41202002-01-25 Akim Demaille <akim@epita.fr>
4121
4122 * tests/regression.at (%nonassoc and eof): New.
4123 Suggested by Robert Anisko.
4124
41252002-01-24 Akim Demaille <akim@epita.fr>
4126
4127 Bison dumps core when trying to complain about broken input files.
4128 Reported by Cris van Pelt.
4129
4130 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
4131 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
4132 into...
4133 (Invalid inputs): Strengthen: exercise parse_percent_token.
4134
41352002-01-24 Robert Anisko <robert.anisko@epita.fr>
4136
4137 * src/Makefile.am: Add bison.c++.
4138 * src/bison.c++: New skeleton.
4139
41402002-01-21 Paolo Bonzini <bonzini@gnu.org>
4141
4142 * po/it.po: New.
4143
41442002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
4145
4146 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
4147
41482002-01-20 Marc Autret <marc@gnu.org>
4149
4150 * src/files.c (compute_output_file_names): Fix
4151
41522002-01-20 Marc Autret <marc@gnu.org>
4153
4154 * tests/output.at: New test.
4155 * src/files.c (compute_base_names): Don't map extensions when
4156 the YACC flag is set, use defaults.
4157 Reported by Evgeny Stambulchik.
4158
41592002-01-20 Marc Autret <marc@gnu.org>
4160
4161 * src/system.h: Need to define __attribute__ away for non-GCC
4162 compilers as well (i.e. the vendor C compiler).
4163 Suggested by Albert Chin-A-Young.
4164
41652002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
4166
4167 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
4168 canonical definition.
4169 * src/system.h: Use the canonical definition for PARAMS (avoids
4170 a conflict with the macro from lib/hash.h).
4171
41722002-01-11 Akim Demaille <akim@epita.fr>
4173
4174 * configure.in: Use AC_FUNC_STRNLEN.
4175 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
4176
41772002-01-09 Akim Demaille <akim@epita.fr>
4178
4179 * src/files.c, src/files.h (output_infix): New.
4180 (tab_extension): Remove.
4181 (compute_base_names): Compute the former, drop the latter.
4182 * src/output.c (prepare): Insert the muscles `output-infix', and
4183 `output-suffix'.
4184 * src/parse-skel.y (string, string.1): New.
4185 (section.header): Use it.
4186 (section.yacc): Remove.
4187 (prefix): Remove too.
4188 * src/scan-skel.l: Adjust.
4189 * src/bison.simple, src/bison.hairy: Adjust.
4190
41912002-01-09 Akim Demaille <akim@epita.fr>
4192
4193 * configure.in (WERROR_CFLAGS): Compute it.
4194 * src/Makefile.am (CFLAGS): Pass it.
4195 * tests/atlocal.in (CFLAGS): Idem.
4196 * src/files.c: Fix a few warnings.
4197 (get_extension_index): Remove, unused.
4198
41992002-01-08 Akim Demaille <akim@epita.fr>
4200
4201 * src/getargs.c (AS_FILE_NAME): New.
4202 (getargs): Use it to convert DOSish file names.
4203 * src/files.c (base_name): Rename as full_base_name to avoid
4204 clashes with `base_name ()'.
4205 (filename_split): New.
4206 (compute_base_names): N-th rewrite, using filename_split.
4207
42082002-01-08 Akim Demaille <akim@epita.fr>
4209
4210 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
4211 New, stolen from the Fileutils 4.1.
4212 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
4213 * configure.in: Check for the presence of memrchr, and of its
4214 prototype.
4215
42162002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
4217
4218 * lib/hash.h (__P): Added definition for this macro.
4219 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
4220 BUILT_SOURCES, to ensure they are generated first.
4221 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
4222 %error-verbose to allow bootstrapping with bison 1.30x.
4223
42242002-01-06 Akim Demaille <akim@epita.fr>
4225
4226 * src/reader.c (parse_braces): Don't fetch the next char, the
4227 convention is to fetch on entry.
4228 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
4229 'switch' without a following semicolon.
4230 * tests/regression.at (braces parsing): New.
4231
42322002-01-06 Akim Demaille <akim@epita.fr>
4233
4234 Bison is dead wrong in its RR conflict reports.
4235
4236 * tests/torture.at (GNU Cim Grammar): New.
4237 * src/conflicts.c (count_rr_conflicts): Fix.
4238
42392002-01-06 Akim Demaille <akim@epita.fr>
4240
4241 Creating package.m4 from configure.ac causes too many problems.
4242
4243 * tests/Makefile.am (package.m4): Create it by hand,
4244 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
4245
42462002-01-06 Akim Demaille <akim@epita.fr>
4247
4248 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
4249 skeleton.h.
4250
42512002-01-04 Paul Eggert <eggert@twinsun.com>
4252
4253 * doc/bison.texinfo (Debugging):
4254 Remove YYSTDERR; it's no longer defined or used.
4255 Also, s/cstdio.h/cstdio/.
4256
42572002-01-03 Akim Demaille <akim@epita.fr>
4258
4259 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
4260
42612002-01-03 Akim Demaille <akim@epita.fr>
4262
4263 * src/parse-skel.y (process_skeleton): Don't bind the parser's
4264 tracing code to --trace, wait for a better --trace option, with
4265 args.
4266
42672002-01-03 Akim Demaille <akim@epita.fr>
4268
4269 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
4270 The ISO C++ standard is extremely clear about it: stderr is
4271 considered a macro, not a regular symbol (see table 94 `Header
4272 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
4273 Therefore std:: does not apply to it. It still does with fprintf.
4274 Also, s/cstdio.h/cstdio/.
4275
42762002-01-03 Akim Demaille <akim@epita.fr>
4277
4278 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
4279 for non system headers.
4280
42812002-01-02 Akim Demaille <akim@epita.fr>
4282
4283 Equip the skeleton chain with location tracking, runtime trace,
4284 pure parser and scanner.
4285
4286 * src/parse-skel.y: Request a pure parser, locations, and prefix
4287 renaming.
4288 (%union): Having several members with the same type does not help
4289 type mismatches, simplify.
4290 (YYPRINT, yyprint): New.
4291 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
4292 (skel_error): this.
4293 Handle locations.
4294 * src/scan-skel.l: Adjust to these changes.
4295 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
4296 (LOCATION_PRINT, skel_control_t): New.
4297
42982001-12-30 Akim Demaille <akim@epita.fr>
4299
4300 * src/parse-skel.y: Get rid of the shift/reduce conflict:
4301 replace `gb' with BLANKS.
4302 * src/scan-skel.l: Adjust.
4303
43042001-12-30 Akim Demaille <akim@epita.fr>
4305
4306 * src/system.h: We don't need nor want bcopy.
4307 Throw away MS-DOS crap: we don't need getpid.
4308 * configure.in: We don't need strndup. It was even causing
4309 problems: because Flex includes the headers *before* us,
4310 _GNU_SOURCE is not defined by config.h, and therefore strndup was
4311 not visible.
4312 * lib/xstrndup.c: New.
4313 * src/scan-skel.l: Use it.
4314 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
4315 * src/parse-skel.y: Use %directives instead of #defines.
4316
43172001-12-30 Akim Demaille <akim@epita.fr>
4318
4319 * src/skeleton.h: New.
4320 * src/output.c (output_parser, output_master_parser): Remove, dead
4321 code.
4322 * src/output.h (get_lines_number, actions_output, guards_output)
4323 (token_definitions_output): Prototype them.
4324 * src/parse-skel.y: Add the license notice.
4325 Include output.h and skeleton.h.
4326 (process_skeleton): Returns void, and takes a single parameter.
4327 * src/scan-skel.l: Add the license notice.
4328 Include skeleton.h.
4329 Don't use %option yylineno: it seems that then Flex imagines
4330 REJECT has been used, and therefore it won't reallocate its
4331 buffers (which makes no other sense to me than a bug). It results
4332 in warnings for `unused: yy_flex_realloc'.
4333
43342001-12-30 Robert Anisko <robert.anisko@epita.fr>
4335
4336 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
4337 (MUSCLE_INSERT_PREFIX): ...to there.
4338 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
4339 (MUSCLE_INSERT_PREFIX): Move from here...
4340
4341 * src/bison.hairy: Add a section directive. Put braces around muscle
4342 names. This parser skeleton is still broken, but Bison should not
4343 choke on a bad muscle 'syntax'.
4344 * src/bison.simple: Add a section directive. Put braces around muscle
4345 names.
4346
4347 * src/files.h (strsuffix, stringappend): Add declarations.
4348 (tab_extension): Add declaration.
4349 (short_base_name): Add declaration.
4350
4351 * src/files.c (strsuffix, stringappend): No longer static. These
4352 functions are used in the skeleton parser.
4353 (tab_extension): New.
4354 (compute_base_names): Use the computations done in this function
4355 to guess if the generated parsers should have '.tab' in their
4356 names.
4357 (short_base_name): No longer static.
4358
4359 * src/output.c (output_skeleton): New.
4360 (output): Disable call to output_master_parser, and give a try to
4361 a new skeleton handling system.
4362 (guards_output, actions_output): No longer static.
4363 (token_definitions_output, get_lines_number): No longer static.
4364
4365 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
4366
4367 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
4368 parse-skel.y.
4369
4370 * src/parse-skel.y: New file.
4371 * src/scan-skel.l: New file.
4372
43732001-12-29 Akim Demaille <akim@epita.fr>
4374
4375 %name-prefix is broken.
4376
4377 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
4378 Adjust all dependencies.
4379 * tests/headers.at (export YYLTYPE): Strengthen this test: use
4380 %name-prefix.
4381
4382 Renaming yylval but not yylloc is not consistent. Now we do.
4383
4384 * src/bison.simple: Prefix yylloc if used.
4385 * doc/bison.texinfo (Decl Summary): Document that.
4386
43872001-12-29 Akim Demaille <akim@epita.fr>
4388
4389 * doc/bison.texinfo: Promote `%long-directive' over
4390 `%long_directive'.
4391 Remove all references to fixed-output-files, yacc is enough.
4392
43932001-12-29 Akim Demaille <akim@epita.fr>
4394
4395 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
4396 user prologue. These are defaults.
4397 * tests/actions.at (Mid-rule actions): Make sure the user can
4398 define YYDEBUG and YYERROR_VERBOSE.
4399
44002001-12-29 Akim Demaille <akim@epita.fr>
4401
4402 * src/output.c (header_output): Don't forget to export YYLTYPE and
4403 yylloc.
4404 * tests/headers.at (export YYLTYPE): New, make sure it does.
4405 * tests/regression.at (%union and --defines, Invalid CPP headers):
4406 Move to...
4407 * tests/headers.at: here.
4408
44092001-12-29 Akim Demaille <akim@epita.fr>
4410
4411 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
4412
44132001-12-29 Akim Demaille <akim@epita.fr>
4414
4415 * tests/actions.at (Mid-rule actions): Output on a single line
4416 instead of several.
4417
44182001-12-29 Akim Demaille <akim@epita.fr>
4419
4420 * doc/bison.texinfo: Formatting changes.
4421
44222001-12-29 Akim Demaille <akim@epita.fr>
4423
4424 Don't store the token defs in a muscle, just be ready to output it
4425 on command. Now possible via `symbols'. Fixes a memory leak.
4426
4427 * src/output.c (token_definitions_output): New.
4428 (output_parser, header_output): Use it.
4429 * src/reader.c (symbols_save): Remove.
4430
44312001-12-29 Akim Demaille <akim@epita.fr>
4432
4433 * src/bison.simple: Do not provide a default for YYSTYPE and
4434 YYLTYPE before the user's prologue. Otherwise it's hardly... a
4435 default.
4436
44372001-12-29 Akim Demaille <akim@epita.fr>
4438
4439 Mid-rule actions are simply... ignored!
4440
4441 * src/reader.c (readgram): Be sure to attach mid-rule actions to
4442 the empty-rule associated to the dummy symbol, not to the host
4443 rule.
4444 * tests/actions.at (Mid-rule actions): New.
4445
44462001-12-29 Akim Demaille <akim@epita.fr>
4447
4448 Memory leak.
4449
4450 * src/reader.c (reader): Free grammar.
4451
44522001-12-29 Akim Demaille <akim@epita.fr>
4453
4454 Memory leak.
4455
4456 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
4457 since it allocates it for each state, although only one is needed.
4458 (allocate_storage): Do it here.
4459
44602001-12-29 Akim Demaille <akim@epita.fr>
4461
4462 * src/options.h, src/options.c (create_long_option_table): Rename
4463 as...
4464 (long_option_table_new): this, with a clearer prototype.
4465 (percent_table): Remove, unused,
4466 * src/getargs.c (getargs): Adjust.
4467
44682001-12-29 Akim Demaille <akim@epita.fr>
4469
4470 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
4471 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
4472 as states.
4473
44742001-12-29 Akim Demaille <akim@epita.fr>
4475
4476 * src/lalr.c (build_relations): Rename `states' as `states1'.
4477 Sorry, I don't understand exactly what it is, no better name...
4478
44792001-12-29 Akim Demaille <akim@epita.fr>
4480
4481 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
4482 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
4483 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
4484 as rules.
4485
44862001-12-29 Akim Demaille <akim@epita.fr>
4487
4488 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
4489 ago.
4490
44912001-12-29 Akim Demaille <akim@epita.fr>
4492
4493 * src/reader.c, src/reader.h (user_toknums): Remove.
4494 Adjust all users to use symbols[i]->user_token_number.
4495
44962001-12-29 Akim Demaille <akim@epita.fr>
4497
4498 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
4499 Adjust all users to use symbols[i]->prec or ->assoc.
4500
45012001-12-29 Akim Demaille <akim@epita.fr>
4502
4503 * src/reader.c, src/reader.h (tags): Remove.
4504 Adjust all users to use symbols[i]->tag.
4505
45062001-12-29 Akim Demaille <akim@epita.fr>
4507
4508 * src/gram.h, src/gram.c (symbols): New, similar to state_table
4509 and rule_table.
4510 * src/reader.c (packsymbols): Fill this table.
4511 Drop sprec.
4512 * src/conflicts.c (resolve_sr_conflict): Adjust.
4513 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
4514 single table.
4515 Use symbols[i]->tag instead of tags[i].
4516
45172001-12-29 Akim Demaille <akim@epita.fr>
4518
4519 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
4520 In addition, put a comment in there, to replace...
4521 * tests/regression.at (%union and C comments): Remove.
4522
45232001-12-29 Akim Demaille <akim@epita.fr>
4524
4525 * tests/regression.at (Web2c Actions): Blindly move the actual
4526 output as expected output. The contents *seem* right to me, but I
4527 can't pretend reading perfectly parser tables... Nonetheless, all
4528 the other tests pass correctly, the table look OK, even though the
4529 presence of `$axiom' is to be noted: AFAICS it is useless (but
4530 harmless).
4531
45322001-12-29 Akim Demaille <akim@epita.fr>
4533
4534 * src/reader.c (readgram): Don't add the rule 0 if there were no
4535 rules read. In other words, add it _after_ having performed
4536 grammar sanity checks.
4537 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
4538
45392001-12-29 Akim Demaille <akim@epita.fr>
4540
4541 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
4542 visible, and some states have now a different number.
4543
45442001-12-29 Akim Demaille <akim@epita.fr>
4545
4546 * src/reader.c (readgram): Bind the initial rule's lineno to that
4547 of the first rule.
4548 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
4549 (Solved SR Conflicts): Adjust rule 0's line number.
4550
45512001-12-29 Akim Demaille <akim@epita.fr>
4552
4553 Fix the `GAWK Grammar' failure.
4554
4555 * src/LR0.c (final_state): Initialize to -1 so that we do compute
4556 the reductions of the first state which was mistakenly confused
4557 with the final state because precisely final_state was initialized
4558 to 0.
4559 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
4560 now noticed by Bison.
4561 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
4562 have a reduction on $default.
4563
45642001-12-29 Akim Demaille <akim@epita.fr>
4565
4566 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
4567 rule line numbers.
4568 * src/closure.c (print_closure): Likewise.
4569 * src/derives.c (print_derives): Likewise.
4570 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
4571 now.
4572
45732001-12-29 Akim Demaille <akim@epita.fr>
4574
4575 * src/lalr.c (lookaheads_print): New.
4576 (lalr): Call it when --trace-flag.
4577 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
4578 are dumped.
4579
45802001-12-29 Akim Demaille <akim@epita.fr>
4581
4582 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
4583 when walking through ritem, even via rule->rhs.
4584 * src/reduce.c (dump_grammar, useful_production, reduce_output)
4585 (useful_production, useless_nonterminals): Likewise.
4586 (reduce_grammar_tables): Likewise, plus update nritems.
4587 * src/nullable.c (set_nullable): Likewise.
4588 * src/lalr.c (build_relations): Likewise.
4589 * tests/sets.at (Nullable): Adjust.
4590 Fortunately, now, the $axiom is no longer nullable.
4591
45922001-12-29 Akim Demaille <akim@epita.fr>
4593
4594 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
4595 the 0-sentinel.
4596 * src/gram.c (ritem_longest_rhs): Likewise.
4597 * src/reduce.c (nonterminals_reduce): Likewise.
4598 * src/print_graph.c (print_graph): Likewise.
4599 * src/output.c (output_rule_data): Likewise.
4600 * src/nullable.c (set_nullable): Likewise.
4601
46022001-12-29 Akim Demaille <akim@epita.fr>
4603
4604 * src/output.c: Comment changes.
4605
46062001-12-27 Paul Eggert <eggert@twinsun.com>
4607
4608 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
4609 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
4610 Sparc, as they were causing more porting problems than the
4611 (minor) performance improvement was worth.
4612
4613 Also, catch up with 1.31's YYSTD.
4614
46152001-12-27 Akim Demaille <akim@epita.fr>
4616
4617 * src/output.c (output_gram): Rely on nritems, not the
4618 0-sentinel. See below.
4619 Use -1 as separator, not 0.
4620 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
4621 Rely on -1 as separator in yyrhs, instead of 0.
4622 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
4623 twice `Now at end of input', therefore there are two lines less to
4624 expect.
4625
46262001-12-27 Akim Demaille <akim@epita.fr>
4627
4628 * tests/regression.at (Unresolved SR Conflicts):
4629 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
4630 below.
4631
46322001-12-27 Akim Demaille <akim@epita.fr>
4633
4634 * src/LR0.c (new_state): Recognize the final state by the fact it
4635 is reached by eoftoken.
4636 (insert_start_shifting_state, insert_eof_shifting_state)
4637 (insert_accepting_state, augment_automaton): Remove, since now
4638 these states are automatically computed from the initial state.
4639 (generate_states): Adjust.
4640 * src/print.c: When reporting a rule number to the user, substract
4641 1, so that the axiom rule is rule 0, and the first user rule is 1.
4642 * src/reduce.c: Likewise.
4643 * src/print_graph.c (print_core): For the time being, just as for
4644 the report, depend upon --trace-flags to dump the full set of
4645 items.
4646 * src/reader.c (readgram): Once the grammar read, insert the rule
4647 0: `$axiom: START-SYMBOL $'.
4648 * tests/set.at: Adjust: rule 0 is now displayed, and since the
4649 number of the states has changed (the final state is no longer
4650 necessarily the last), catch up.
4651
46522001-12-27 Akim Demaille <akim@epita.fr>
4653
4654 Try to make the use of the eoftoken valid. Given that its value
4655 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
4656 is used instead of > 0 where appropriate, (ii), depend upon nritems
4657 instead of the 0-sentinel.
4658
4659 * src/gram.h, src/gram.c (nritems): New.
4660 Expected to be duplication of nitems, but for the time being...
4661 * src/reader.c (packgram): Assert nritems and nitems are equal.
4662 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
4663 * src/closure.c (print_closure, print_fderives): Likewise.
4664 * src/gram.c (ritem_print): Likewise.
4665 * src/print.c (print_core, print_grammar): Likewise.
4666 * src/print_graph.c: Likewise.
4667
46682001-12-27 Akim Demaille <akim@epita.fr>
4669
4670 * src/main.c (main): If there are complains after grammar
4671 reductions, then output the report anyway if requested, then die.
4672 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
4673 * src/reader.c (eoftoken): New.
4674 (parse_token_decl): If the token being defined has value `0', it
4675 is the eoftoken.
4676 (packsymbols): No longer hack `tags' to insert `$' by hand.
4677 Be sure to preserve the value of the eoftoken.
4678 (reader): Make sure eoftoken is defined.
4679 Initialize nsyms to 0: now eoftoken is created just like the others.
4680 * src/print.c (print_grammar): Don't special case the eof token.
4681 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
4682 lie anyway, albeit pleasant.
4683 * tests/calc.at: Exercise error messages with eoftoken.
4684 Change the grammar so that empty input is invalid.
4685 Adjust expectations.
4686 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
4687
46882001-12-27 Akim Demaille <akim@epita.fr>
4689
4690 * configure.in: Check the protos of strchr ans strspn.
4691 Replace strchr if needed.
4692 * src/system.h: Provide the protos of strchr, strspn and memchr if
4693 missing.
4694 * lib/strchr.c: New.
4695 * src/reader.c (symbols_save): Use strchr.
4696
46972001-12-27 Akim Demaille <akim@epita.fr>
4698
4699 * src/print.c, src/print_graph.c (escape): New.
4700 Use it to quote the TAGS outputs.
4701 * src/print_graph.c (print_state): Now errors are in red, and
4702 reductions in green.
4703 Prefer high to wide: output the state number on a line of its own.
4704
47052001-12-27 Akim Demaille <akim@epita.fr>
4706
4707 * src/state.h, src/state.c (reductions_new): New.
4708 * src/LR0.c (set_state_table): Let all the states have a
4709 `reductions', even if reduced to 0.
4710 (save_reductions): Adjust.
4711 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
4712 * src/print.c (print_reductions, print_actions): Adjust.
4713 * src/output.c (action_row): Adjust.
4714
47152001-12-27 Akim Demaille <akim@epita.fr>
4716
4717 * src/state.h, src/state.c (errs_new, errs_dup): New.
4718 * src/LR0.c (set_state_table): Let all the states have an errs,
4719 even if reduced to 0.
4720 * src/print.c (print_errs, print_reductions): Adjust.
4721 * src/output.c (output_actions, action_row): Adjust.
4722 * src/conflicts.c (resolve_sr_conflict): Adjust.
4723
47242001-12-27 Akim Demaille <akim@epita.fr>
4725
4726 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
4727
47282001-12-27 Akim Demaille <akim@epita.fr>
4729
4730 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
4731 * src/print.c: here.
4732 (lookaheadset, shiftset): New, used as additional storage by
4733 print_reductions.
4734 (print_results): Adjust.
4735 (print_shifts, print_gotos, print_errs): New, extracted from...
4736 (print_actions): here.
4737 * src/print_graph.c (print_actions): Remove dead code.
4738
47392001-12-27 Akim Demaille <akim@epita.fr>
4740
4741 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
4742 `$n' and `@n'.
4743
47442001-12-27 Akim Demaille <akim@epita.fr>
4745
4746 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
4747 (build_relations): Adjust.
4748
47492001-12-27 Akim Demaille <akim@epita.fr>
4750
4751 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
4752 duplication.
4753
47542001-12-27 Akim Demaille <akim@epita.fr>
4755
4756 * src/reader.c (packgram): Catch nitems overflows.
4757
47582001-12-27 Akim Demaille <akim@epita.fr>
4759
4760 * src/files.c, src/files.h (guard_obstack): Remove.
4761 * src/output.c (output): Adjust.
4762 * src/reader.c (parse_braces): New, factoring...
4763 (copy_action, copy_guard): these two which are renamed as...
4764 (parse_action, parse_guard): these.
4765 As a voluntary consequence, using braces around guards is now
4766 mandatory.
4767
47682001-12-27 Akim Demaille <akim@epita.fr>
4769
4770 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
4771 * src/reader.c (symbol_list): `guard' and `guard_line' are new
4772 members.
4773 (symbol_list_new): Adjust.
4774 (copy_action): action_line is the first line, not the last.
4775 (copy_guard): Just as for actions, store the `action' only, not
4776 the switch/case/break flesh.
4777 Don't parse the user action that might follow the guard, let...
4778 (readgram): do it, i.e., now, there can be an action after a
4779 guard.
4780 In other words the guard is just explicitly optional.
4781 (packgram): Adjust.
4782 * src/output.c (guards_output): New.
4783 (output_parser): Call it when needed.
4784 (output): Also free the guard and attrs obstacks.
4785 * src/files.c, src/files.h (obstack_save): Remove.
4786 (output_files): Remove.
4787 As a result, if one needs the former `.act' file, using an
4788 appropriate skeleton which requires actions and guards is now
4789 required.
4790 * src/main.c (main): Adjust.
4791 * tests/semantic.at: New.
4792 * tests/regression.at: Use `input.y' as input file name.
4793 Avoid 8+3 problems by requiring input.c when the test needs the
4794 parser.
4795
47962001-12-27 Akim Demaille <akim@epita.fr>
4797
4798 * src/reader.c (symbol_list_new): Be sure to initialize all the
4799 fields.
4800
48012001-12-27 Akim Demaille <akim@epita.fr>
4802
4803 All the hacks using a final pseudo state are now useless.
4804
4805 * src/LR0.c (set_state_table): state_table holds exactly nstates.
4806 * src/lalr.c (nLA): New.
4807 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
4808 instead of lookaheadsp from the pseudo state (nstate + 1).
4809
48102001-12-27 Akim Demaille <akim@epita.fr>
4811
4812 * src/output.c (action_row, token_actions): Use a state_t instead
4813 of a integer, and nlookaheads instead of the following state's
4814 lookaheadsp.
4815
48162001-12-27 Akim Demaille <akim@epita.fr>
4817
4818 * src/conflicts.c (log_resolution, flush_shift)
4819 (resolve_sr_conflict, set_conflicts, solve_conflicts)
4820 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
4821 (conflicts_print, print_reductions): Use a state_t instead of an
4822 integer when referring to a state.
4823 As much as possible, depend upon nlookaheads, instead of the
4824 `lookaheadsp' member of the following state (since lookaheads of
4825 successive states are successive, the difference between state n + 1
4826 and n served as the number of lookaheads for state n).
4827 * src/lalr.c (add_lookback_edge): Likewise.
4828 * src/print.c (print_core, print_actions, print_state)
4829 (print_results): Likewise.
4830 * src/print_graph.c (print_core, print_actions, print_state)
4831 (print_graph): Likewise.
4832 * src/conflicts.h: Adjust.
4833
48342001-12-27 Akim Demaille <akim@epita.fr>
4835
4836 * src/bison.hairy: Formatting/comment changes.
4837 ANSIfy.
4838 Remove `register' indications.
4839 Add plenty of `static'.
4840
48412001-12-27 Akim Demaille <akim@epita.fr>
4842
4843 * src/output.c (prepare): Drop the muscle `ntbase' which
4844 duplicates ntokens.
4845 * src/bison.simple: Formatting/comment changes.
4846 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
4847 is an undocumented synonym.
4848
48492001-12-22 Akim Demaille <akim@epita.fr>
4850
4851 * src/output.c (output_table_data): Change the prototype to use
4852 `int' for array ranges: some invocations do pass an int, not a
4853 short.
4854 Reported by Wayne Green.
4855
48562001-12-22 Akim Demaille <akim@epita.fr>
4857
4858 Some actions of web2c.y are improperly triggered.
4859 Reported by Mike Castle.
4860
4861 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
4862 * tests/regression.at (Web2c): Rename as...
4863 (Web2c Report): this.
4864 (Web2c Actions): New.
4865
48662001-12-22 Akim Demaille <akim@epita.fr>
4867
4868 Reductions in web2c.y are improperly reported.
4869 Reported by Mike Castle.
4870
4871 * src/conflicts.c (print_reductions): Fix.
4872 * tests/regression.at (Web2c): New.
4873
48742001-12-18 Akim Demaille <akim@epita.fr>
4875
4876 Some host fail on `assert (!"foo")', which expands to
4877 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
4878 Reported by Nelson Beebee.
4879
4880 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
4881 `#define it_succeeded 0' and `assert (it_succeeded)'.
4882
48832001-12-17 Marc Autret <autret_m@epita.fr>
4884
4885 * src/bison.simple: Don't hard code the skeleton line and filename.
4886 * src/output.c (output_parser): Rename 'line' as 'output_line'.
4887 New line counter 'skeleton_line' (skeleton-line muscle).
4888
48892001-12-17 Paul Eggert <eggert@twinsun.com>
4890
4891 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
4892 YYDEBUG must be defined to a nonzero value.
4893
4894 * src/bison.simple (yytname): Do not assume that the user defines
4895 YYDEBUG to a properly parenthesized expression.
4896
48972001-12-17 Akim Demaille <akim@epita.fr>
4898
4899 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
4900 nlookaheads is a new member.
4901 Adjust all users.
4902 * src/lalr.h (nlookaheads): Remove this orphan declaration.
4903 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
4904 state.
4905
49062001-12-17 Akim Demaille <akim@epita.fr>
4907
4908 * src/files.h, src/files.c (open_files, close_files): Remove.
4909 * src/main.c (main): Don't open/close files, nor invoke lex_free,
4910 let...
4911 * src/reader.c (reader): Do it.
4912
49132001-12-17 Akim Demaille <akim@epita.fr>
4914
4915 * src/conflicts.c (print_reductions): Formatting changes.
4916
49172001-12-17 Akim Demaille <akim@epita.fr>
4918
4919 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
4920 (flush_reduce): New.
4921 (resolve_sr_conflict): Adjust.
4922
49232001-12-17 Akim Demaille <akim@epita.fr>
4924
4925 * src/output.c (output_obstack): Be static and rename as...
4926 (format_obstack): this, to avoid any confusion with files.c's
4927 output_obstack.
4928 * src/reader.h (muscle_obstack): Move to...
4929 * src/output.h: here, since it's defined in output.c.
4930
49312001-12-17 Akim Demaille <akim@epita.fr>
4932
4933 * src/output.c (action_row, save_column, default_goto)
4934 (sort_actions, matching_state, pack_vector): Better variable
4935 locality.
4936
49372001-12-17 Akim Demaille <akim@epita.fr>
4938
4939 * src/output.c: Various formatting changes.
4940
49412001-12-17 Akim Demaille <akim@epita.fr>
4942
4943 * src/files.c (output_files): Free the output_obstack.
4944 * src/main.c (main): Call print and print_graph conditionally.
4945 * src/print.c (print): Work unconditionally.
4946 * src/print_graph.c (print_graph): Work unconditionally.
4947 * src/conflicts.c (log_resolution): Output only if verbose_flag.
4948
49492001-12-16 Marc Autret <autret_m@epita.fr>
4950
4951 * src/output.c (actions_output): Fix. When we use %no-lines,
4952 there is one less line per action.
4953
49542001-12-16 Marc Autret <autret_m@epita.fr>
4955
4956 * src/bison.simple: Remove a useless #line directive.
4957 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
4958 * src/output.c (get_lines_number): New.
4959 (output_parser): Adjust, now takes care about the lines of a
4960 output muscles.
4961 Fix line numbering.
4962 (actions_output): Computes the number of lines taken by actions.
4963 (output_master_parser): Insert new skeleton which is the name of
4964 the output parser file name.
4965
49662001-12-15 Marc Autret <autret_m@epita.fr>
4967
4968 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
4969
49702001-12-15 Marc Autret <autret_m@epita.fr>
4971
4972 * src/output.c (output_gram): Keep track of the hairy one.
4973
49742001-12-15 Akim Demaille <akim@epita.fr>
4975
4976 Make `make distcheck' work.
4977
4978 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
4979 system.h which uses libgettext.h.
4980
49812001-12-15 Akim Demaille <akim@epita.fr>
4982
4983 * src/nullable.c (set_nullable): Useless rules must be skipped,
4984 otherwise, since we range over their symbols, we might look at a
4985 nonterminal which no longer ``exists'', i.e., it is not counted in
4986 `nvars', hence we overflow our arrays.
4987
49882001-12-15 Akim Demaille <akim@epita.fr>
4989
4990 The header can also be produced directly, without any obstack!
4991 Yahoo!
4992
4993 * src/files.c, src/files.h (defines_obstack): Remove.
4994 (compute_header_macro): Global.
4995 (defines_obstack_save): Remove.
4996 * src/reader.c (parse_union_decl): No longer output to
4997 defines_obstack: its content can be found in the `stype' muscle
4998 anyway.
4999 (output_token_translations): Merge into...
5000 (symbols_output): this.
5001 Rename as...
5002 (symbols_save): this.
5003 (reader): Adjust.
5004 * src/output.c (header_output): New.
5005 (output): Call it.
5006
50072001-12-15 Akim Demaille <akim@epita.fr>
5008
5009 * src/reader.c (parse_union_decl): Instead of handling two obstack
5010 simultaneously, use one to define the `stype' muscle, and use the
5011 value of the latter to fill defines_obstack.
5012 (copy_comment): Remove.
5013 (copy_comment2): Work for a single obstack.
5014 Rename as...
5015 (copy_comment): this.
5016
50172001-12-15 Akim Demaille <akim@epita.fr>
5018
5019 * src/lex.c, src/lex.h (xgetc): No longer static.
5020 * src/reader.c (parse_union_decl): Revamp.
5021
50222001-12-15 Akim Demaille <akim@epita.fr>
5023
5024 Still making progress in separating Bison into (i) input, (ii)
5025 process, (iii) output: now we can directly output the parser file
5026 without using table_obstack at all.
5027
5028 * src/files.c, src/files.h (table_obstack): Bye bye.
5029 (parser_file_name): New.
5030 * src/files.c (compute_output_file_names): Compute it.
5031 * src/output.c (actions_output, output_parser)
5032 (output_master_parser): To a file instead of an obstack.
5033
50342001-12-15 Akim Demaille <akim@epita.fr>
5035
5036 Attach actions to rules, instead of pre-outputting them to
5037 actions_obstack.
5038
5039 * src/gram.h (rule_t): action and action_line are new members.
5040 * src/reader.c (symbol_list): Likewise.
5041 (copy_action): Save the actions within the rule.
5042 (packgram): Save them in rule_table.
5043 * src/output.c (actions_output): New.
5044 (output_parser): Use it on `%%actions'.
5045 (output_rule_data): Don't free rule_table.
5046 (output): Do it.
5047 (prepare): Don't save the `action' muscle.
5048 * src/bison.simple: s/%%action/%%actions/.
5049
50502001-12-15 Akim Demaille <akim@epita.fr>
5051
5052 * src/reader.c (copy_action): When --yacc, don't append a `;'
5053 to the user action: let it fail if lacking.
5054 Suggested by Arnold Robbins and Tom Tromey.
5055
50562001-12-14 Akim Demaille <akim@epita.fr>
5057
5058 * src/lex.c (literalchar): Simply return the char you decoded, non
5059 longer mess around with obstacks and int pointers.
5060 Adjust all callers.
5061
50622001-12-14 Akim Demaille <akim@epita.fr>
5063
5064 * src/lex.c (literalchar): Don't escape the special characters,
5065 just decode them, and keep them as char (before, eol was output as
5066 the 2 char string `\n' etc.).
5067 * src/output.c (output_rule_data): Use quotearg to output the
5068 token strings.
5069
50702001-12-13 Paul Eggert <eggert@twinsun.com>
5071
5072 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
5073 Do not infringe on the global user namespace when using C++.
5074 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
5075 All uses of `fprintf' and `stderr' changed.
5076
5077 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
5078
50792001-12-13 Akim Demaille <akim@epita.fr>
5080
5081 The computation of nullable is broken: it doesn't handle empty
5082 RHS's properly.
5083
5084 * tests/torture.at (GNU AWK Grammar): New.
5085 * tests/sets.at (Nullable): New.
5086 * src/nullable.c (set_nullable): Instead of blindly looping over
5087 `ritems', loop over the rules, and then over their rhs's.
5088
5089 Work around Autotest bugs.
5090
5091 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
5092 frame, because Autotest understand lines starting with a `+' as
5093 traces from the shell. Then, they are not processed properly.
5094 Admittedly an Autotest bug, but we don't have time to wait for
5095 Autotest to catch up.
5096 * tests/regression.at (Broken Closure): Adjust to the new table
5097 frames.
5098 Move to...
5099 * tests/sets.at: here.
5100
51012001-12-13 Akim Demaille <akim@epita.fr>
5102
5103 * src/closure.c (closure): Use nrules instead of playing tricks
5104 with BITS_PER_WORD.
5105
51062001-12-13 Akim Demaille <akim@epita.fr>
5107
5108 * src/print.c (print_actions): Output the handling of `$' as the
5109 traces do: shifting the token EOF. Before EOF was treated as a
5110 nonterminal.
5111 * tests/regression.at: Adjust some tests.
5112 * src/print_graph.c (print_core): Complete the set of items via
5113 closure. The next-to-final and final states are still unsatisfying,
5114 but that's to be addressed elsewhere.
5115 No longer output the rule numbers, but do output the state number.
5116 A single loop for the shifts + gotos is enough, but picked a
5117 distinct color for each.
5118 (print_graph): Initialize and finalize closure.
5119
51202001-12-13 Akim Demaille <akim@epita.fr>
5121
5122 * src/reader.c (readgram): Remove dead code, an strip useless
5123 braces.
5124 (get_type): Remove, unused.
5125
51262001-12-12 Akim Demaille <akim@epita.fr>
5127
5128 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
5129 on that of lib/error.c.
5130
51312001-12-12 Akim Demaille <akim@epita.fr>
5132
5133 Some hosts don't like `/' in includes.
5134
5135 * src/system.h: Include libgettext.h without qualifying the path.
5136 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
5137 $(top_srcdir).
5138
51392001-12-11 Marc Autret <autret_m@epita.fr>
5140
5141 * src/output.c (output_parser): Remove useless muscle.
5142
51432001-12-11 Marc Autret <autret_m@epita.fr>
5144
5145 * src/bison.simple: Remove #line just before %%epilogue. It
5146 is now handled in ...
5147 * src/reader.c (read_additionnal_code): Add the output of a
5148 #line for the epilogue.
5149
51502001-12-10 Marc Autret <autret_m@epita.fr>
5151
5152 * src/reader.c (copy_definition): Re-use CPP-outed code which
5153 replace precedent remove.
5154 * src/bison.simple: Remove #line before %%prologue because
5155 %%input-line is wrong at this time.
5156
51572001-12-10 Marc Autret <autret_m@epita.fr>
5158
5159 * src/reader.c (symbols_output): Clean up.
5160 * src/output.c (output_gram, output): Clean up.
5161
51622001-12-10 Akim Demaille <akim@epita.fr>
5163
5164 * src/lalr.c (initialize_lookaheads): New. Extracted from...
5165 * src/LR0.c (set_state_table): here.
5166 * src/lalr.c (lalr): Call it.
5167
51682001-12-10 Akim Demaille <akim@epita.fr>
5169
5170 * src/state.h (shifts): Remove the `number' member: shifts are
5171 attached to state, hence no longer need to be labelled with a
5172 state number.
5173
51742001-12-10 Akim Demaille <akim@epita.fr>
5175
5176 Now that states have a complete set of members, the linked list of
5177 shifts is useless: just fill directly the state's shifts member.
5178
5179 * src/state.h (shifts): Remove the `next' member.
5180 * src/LR0.c (first_state, last_state): Remove.
5181 Adjust the callers.
5182 (augment_automaton): Don't look for the shifts that must be added
5183 a shift on EOF: it is those of the state we looked for! But now,
5184 since shifts are attached, it is no longer needed to looking
5185 merely by its id: its number.
5186
51872001-12-10 Akim Demaille <akim@epita.fr>
5188
5189 * src/LR0.c (augment_automaton): Better variable locality.
5190 Remove an impossible branch: if there is a state corresponding to
5191 the start symbol being shifted, then there is shift for the start
5192 symbol from the initial state.
5193
51942001-12-10 Akim Demaille <akim@epita.fr>
5195
5196 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
5197 only when appropriate: when insert_start_shifting_state' is not
5198 invoked.
5199 * tests/regression.at (Rule Line Numbers): Adjust.
5200
52012001-12-10 Akim Demaille <akim@epita.fr>
5202
5203 * src/LR0.c (augment_automaton): Now that all states have shifts,
5204 merge the two cases addition shifts to the initial state.
5205
52062001-12-10 Akim Demaille <akim@epita.fr>
5207
5208 * src/lalr.c (set_state_table): Move to...
5209 * src/LR0.c: here.
5210 * src/lalr.c (lalr): Don't call it...
5211 * src/LR0.c (generate_states): do it.
5212 * src/LR0.h (first_state): Remove, only the table is used.
5213
52142001-12-10 Akim Demaille <akim@epita.fr>
5215
5216 * src/LR0.h (first_shift, first_reduction): Remove.
5217 * src/lalr.c: Don't use first_shift: find shifts through the
5218 states.
5219
52202001-12-10 Akim Demaille <akim@epita.fr>
5221
5222 * src/LR0.c: Attach shifts to states as soon as they are
5223 computed.
5224 * src/lalr.c (set_state_table): Instead of assigning shifts to
5225 state, just assert that the mapping was properly done.
5226
52272001-12-10 Akim Demaille <akim@epita.fr>
5228
5229 * src/LR0.c (insert_start_shift): Rename as...
5230 (insert_start_shifting_state): this.
5231 (insert_eof_shifting_state, insert_accepting_state): New.
5232 (augment_automaton): Adjust.
5233 Better locality of the variables.
5234 When looking if the start_symbol is shifted from the initial
5235 state, using `while (... symbol != start_symbol ...)' sounds
5236 better than `while (... symbol < start_symbol ...)': If fail
5237 to see how the order between symbols could be relevant!
5238
52392001-12-10 Akim Demaille <akim@epita.fr>
5240
5241 * src/getargs.h: Don't declare `spec_name_prefix' and
5242 `spec_file_prefix', declared by src/files.h.
5243 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
5244 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
5245 * src/output.c (prepare): Adjust.
5246 * src/reader.c (symbols_output): Likewise.
5247 * src/vmsgetargs.c: Vaguely adjust, but who cares?
5248
52492001-12-10 Akim Demaille <akim@epita.fr>
5250
5251 * src/muscle_tab.c (muscle_init): NULL is a better default than
5252 `"0"'.
5253
52542001-12-10 Akim Demaille <akim@epita.fr>
5255
5256 * src/reader.c (reader): Calling symbols_output once is enough.
5257
52582001-12-10 Akim Demaille <akim@epita.fr>
5259
5260 Now that states have a complete set of members, the linked list of
5261 reductions is useless: just fill directly the state's reductions
5262 member.
5263
5264 * src/state.h (struct reductions): Remove member `number' and
5265 `next'.
5266 * src/LR0.c (first_reduction, last_reduction): Remove.
5267 (save_reductions): Don't link the new reductions, store them in
5268 this_state.
5269 * src/lalr.c (set_state_table): No need to attach reductions to
5270 states, it's already done.
5271 * src/output.c (output_actions): No longer free the shifts, then
5272 the reductions, then the states: free all the states and their
5273 members.
5274
52752001-12-10 Akim Demaille <akim@epita.fr>
5276
5277 * src/options.c (OPTN, DRTV, BOTH): New.
5278 (option_table): Use them.
5279
5280 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
5281 the job of system.h.
5282 * src/options.c: Don't include stdio.h and xalloc.h for the same
5283 reasons.
5284
52852001-12-10 Akim Demaille <akim@epita.fr>
5286
5287 * src/output.c (output, prepare): Make sure the values of the
5288 muscles `action' and `prologue' are 0-terminated.
5289
52902001-12-10 Akim Demaille <akim@epita.fr>
5291
5292 Clean up GCC warnings.
5293
5294 * src/reader.c (copy_action): `buf' is not used.
5295 (parse_skel_decl): Be static.
5296 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
5297 * src/options.h (create_long_option_table): Have a real prototype.
5298 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
5299 (hash_delete_at): Return const void *.
5300 Adjust casts to preserve the const.
5301
53022001-12-10 Akim Demaille <akim@epita.fr>
5303
5304 * configure.in: Require 2.52g.
5305 M4 is not needed, but AUTOM4TE is.
5306 * m4/m4.m4: Remove.
5307 * tests/Makefile.am: Adjust.
5308
53092001-12-10 Akim Demaille <akim@epita.fr>
5310
5311 One structure for states is enough, even though theoretically
5312 there are LR(0) states and LALR(1) states.
5313
5314 * src/lalr.h (state_t): Remove.
5315 (state_table): Be state_t **, not state_t *.
5316 * src/state.h (core, CORE_ALLOC): Rename as...
5317 (state_t, STATE_ALLOC): this.
5318 Add the LALR(1) members: shifts, reductions, errs.
5319 * src/LR0.c (state_table): Rename as...
5320 (state_hash): this, to avoid name clashes with the global
5321 `state_table'.
5322 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
5323 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
5324
53252001-12-10 Akim Demaille <akim@epita.fr>
5326
5327 Bison dumps core on bash.y.
5328 Reported by Pascal Bart.
5329
5330 * src/warshall.c (bitmatrix_print): New.
5331 (TC): Use it.
5332 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
5333 j must be the outer loop.
5334 * tests/regression.at (Broken Closure): New.
5335
53362001-12-05 Akim Demaille <akim@epita.fr>
5337
5338 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
5339 its argument.
5340