+2002-12-08 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
+ since this causes problems when __file__ contains character
+ sequences like "@" that are treated specially by src/scan-skel.l.
+ Instead, just use the file's basename. This fixes the bug
+ reported by Martin Mokrejs in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-December/001949.html>.
+
+2002-12-06 Paul Eggert <eggert@twinsun.com>
+
+ Add support for rules that do not have trailing semicolons, as
+ POSIX requires. Improve the quality of locations in Bison
+ diagnostics.
+
+ * src/location.c: Include <quotearg.h>.
+ (empty_location): Now const.
+ (location_print): New function. Follow the recommendation of the
+ GNU Coding Standards for locations that span file boundaries.
+ * src/location.h: Do not include <quotearg.h>; no longer needed.
+ (boundary): New type.
+ (location_t): Use it. This allows locations to span file boundaries.
+ All member uses changed: file -> start.file or end.file (as needed),
+ first_line -> start.line, first_column -> start.column,
+ last_line -> end.line, last_column -> end.column.
+ (equal_boundaries): New function.
+ (LOCATION_RESET, LOCATION_STEP): Remove.
+ (LOCATION_PRINT): Remove. All callers changed to use location_print.
+ (empty_location): Now const.
+ (location_print): New decl.
+ * src/parse-gram.y (lloc_default): New function, which handles
+ empty locations more accurately.
+ (YYLLOC_DEFAULT): Use it.
+ (%token COLON): Remove.
+ (%token ID_COLON): New token.
+ (rules): Use it.
+ (declarations, rules): Remove trailing semicolon.
+ (declaration, rules_or_grammar_declaration):
+ Allow empty (";") declaration.
+ (symbol_def): Remove empty actions; no longer needed.
+ (rules_or_grammar_declaration): Remove trailing semicolon.
+ (semi_colon.opt): Remove.
+ * src/reader.h: Include location.h.
+ (scanner_cursor): New decl.
+ * src/reduce.c (nonterminals_reduce): Use warn_at rather than
+ rolling our own.
+ * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
+ of *loc.
+ (STEP): Remove. No longer needed, now that adjust_location does
+ the work. All uses removed.
+ (scanner_cursor): New var.
+ (adjust_location): Renamed from extend_location. It now sets
+ *loc and adjusts the scanner cursor. All uses changed.
+ Don't bother testing for CR.
+ (handle_syncline): Remove location arg; now updates scanner cursor.
+ All callers changed.
+ (unexpected_end_of_file): Now accepts start boundary of token or
+ comment, not location. All callers changed. Update scanner cursor,
+ not the location.
+ (SC_AFTER_IDENTIFIER): New state.
+ (context_state): Renamed from c_context. All uses changed.
+ (id_loc, code_start, token_start): New local vars.
+ (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
+ processing of Yacc white space and equivalents here.
+ (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
+ instead of returning ID immediately, since we need to search for
+ a subsequent colon.
+ (<INITIAL>"'", "\""): Save token_start.
+ (<INITIAL>"%{", "{", "%%"): Save code_start.
+ (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
+ (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
+ BEGIN context_state at end, not INITIAL.
+ (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
+ <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
+ Return correct token start.
+ (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
+ the start of a character, string or multiline comment is found.
+ * tests/conflicts.at (S/R in initial, Defaulted Conflicted
+ Reduction): Adjust reported locations to match the more-precise
+ results now expected.
+ * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
+ * tests/reduce.at (Useless Rules, Reduced Automaton,
+ Underivable Rules): Likewise.
+ * tests/regression.at (Invalid inputs): No longer `expecting ";"
+ or "|"' now that so many other tokens are allowed by the new grammar.
+
+ * src/complain.h (current_file): Remove duplicate decl;
+ current_file is now owned by files.h.
+ * src/complain.c, src/scan-gram.l: Include files.h.
+
+2002-12-06 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
+ promotes to int; it might be unsigned int.
+ * data/yacc.c (yy_reduce_print): Likewise.
+
+ * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
+ be #defined in the prologue, not in the Bison declarations.
+ This fixes Debian Bug 102878, reported by Shaul Karl.
+
+2002-12-02 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
+ * lib/strtoul.c: New file, from gnulib.
+ This fixes a porting bug reported by Peter Klein in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-December/001944.html>.
+
+2002-11-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
+ and put only a forward declaration in the prologue. This is for
+ consistency with the other scanner helper functions.
+
+ Type clashes now generate warnings, not errors, since it
+ appears that POSIX may allow some grammars with type clashes.
+ * src/reader.c (grammar_current_rule_check): Warn about
+ type clashes instead of complaining.
+ * tests/input.at (Type Clashes): Expect warnings, not complaints.
+
+ Add Yacc library, since POSIX requires it.
+ * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
+ * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
+ * lib/main.c, lib/yyerror.c: New files.
+
+ gram_error can be static; it need not be extern.
+ * src/reader.h (gram_error): Remove decl.
+ * src/parse-gram.y (gram_error): Now static. Add static decl.
+ (print_token_value): Omit parameter names from forward decl,
+ for consistency.
+
+2002-11-29 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo: Emphasize that yylex and yyerror must
+ be declared before being used. E.g., one should typically
+ declare them in the prologue. Use GNU coding style in examples.
+ Put "const" consistently after the type it modifies. Mention
+ that C99 supports "inline". Mention that yyerror traditionally
+ returns "int".
+
+ %parse-param and %lex-param now take just one argument, the
+ declaration; the argument name is deduced from the declaration.
+
+ * doc/bison.texinfo (Parser Function, Pure Calling, Error
+ Reporting, Table of Symbols): Document this.
+ * src/parse-gram.y (add_param): New function.
+ (COMMA): Remove.
+ (declaration): Implement new rule for %parse-param and %lex-param.
+ * src/scan-gram.l: "," now elicits a warning, rather than being
+ a token; this is more compatible with byacc.
+ * tests/calc.at (Simple LALR Calculator): Adopt new convention.
+
+2002-11-27 Paul Eggert <eggert@twinsun.com>
+
+ Rename identifiers to avoid real and potential collisions.
+
+ * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
+ to avoid collision with lex macro described by Bruce Lilly in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001929.html>.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
+ * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
+ * src/parse-gram.y (print_token_value): Renamed from yyprint.
+ All uses changed.
+ (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
+ The name "yycontrol" violates the name space rules, and this stuff
+ wasn't being used anyway.
+ (input): Remove action; this stuff wasn't being used.
+ (gram_error): Rename local variable yylloc -> loc.
+ * src/reader.h (struct gram_control_s, gram_control_t): Remove.
+ (YY_DECL): Don't use "yy" at start of local variables.
+ All uses changed, e.g., yylloc -> loc.
+ * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
+ (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
+ (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
+ (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
+
+ * src/parse-gram.y (gram_error): loc is now const *.
+ * src/reader.h (gram_error): Likewise.
+
+2002-11-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75c.
+
+ * tests/actions.at (Actions after errors): Use an output format
+ more similar to that of the Printers and Destructors test.
+ Test the position of the ';' token too.
+ (Printers and Destructors): Likewise.
+ (Printers and Destructors: %glr-parser): Remove for now, to avoid
+ unnecessarily alarming people when the test fails.
+
+ * data/yacc.c (yyerrlab1): Move this label down, so that the
+ parser does not discard the lookahead token if the user code
+ invokes YYERROR. This change is required for POSIX conformance.
+
+ * lib/error.c: Sync with gnulib.
+
+2002-11-22 Paul Eggert <eggert@twinsun.com>
+
+ * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
+ * lib/mbswidth.c, lib/mbswidth.h: Likewise.
+ * lib/xmalloc.c: Likewise.
+
+2002-11-20 Paul Eggert <eggert@twinsun.com>
+
+ * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
+
+2002-11-20 Paul Eggert <eggert@twinsun.com>
+
+ Avoid use of <assert.h>, as the GNU Coding Standards hint that one
+ should use `if (! x) abort ();' rather than `assert (x);', and
+ anyway it's one less thing to worry about configuring.
+
+ * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
+ and replace all instances of assert with abort.
+ * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
+
+ * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
+ yyresolveAction, yyprocessOneStack): Use abort rather than assert.
+ * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
+ hash_find_entry, hash_rehash, hash_insert): Likewise.
+ * src/conflicts.c (resolve_sr_conflict): Likewise.
+ * src/lalr.c (set_goto_map, map_goto): Likewise.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/output.c (prepare_rules, token_definitions_output): Likewise.
+ * src/reader.c (packgram, reader): Likewise.
+ * src/state.c (state_new, state_free, state_transitions_set,
+ state_reduction_find): Likewise.
+ * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
+ symbol_pack): Likewise.
+ * src/tables.c (conflict_row, pack_vector): Likewise.
+ * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+ get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+ get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
+ get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
+
+ * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
+ (ARGMATCH_CONSTRAINT): New macro.
+ (ARGMATCH_ASSERT): Use it.
+
+ * src/system.h (verify): New macro.
+ * src/getargs.c (trace_argmatch, report_argmatch): Use verify
+ rather than assert.
+ * src/tables.c (tables_generate): Likewise.
+
+ * src/struniq.c (struniq_assert): Now returns void, and aborts
+ if the assertion is false.
+ (struniq_assert_p): Remove.
+ * src/struniq.h: Likewise.
+
+2002-11-18 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yygetLRActions): Replace `yyindex' with
+ `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
+ This fixes the regression with Sun ONE Studio 7 cc that I reported in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001892.html>.
+
+2002-11-18 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
+ space.
+ From Tim Van Holder.
+
+2002-11-17 Paul Eggert <eggert@twinsun.com>
+
+ Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
+ to "SyntaxError" for consistency with my 2002-11-15 change.
+
+ * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
+ not define to {}, since this breaks the common use of `YYDPRINTF
+ ((...));' if a single statement is desired (e.g. before `else').
+ Work around GCC warnings by surrounding corresponding calls with
+ {} if needed.
+ (yyhasResolvedValue): Remove unused function.
+ (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
+ loop body.
+ (yyreportSyntaxError): Renamed from yyreportParseError.
+ (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
+ All uses changed.
+ * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
+ extern when possible. Remove unused initializations.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ Augment the similarity between GLR and LALR traces.
+
+ * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
+ (YY_REDUCE_PRINT): New.
+ (yyparse): Use them.
+ * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
+ YYDPRINT here.
+ (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
+ state reached after the reduction/recovery, since...
+ (yyparse, yyprocessOneStack): Report the state we are entering in.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
+ Add support for --trace=skeleton.
+ * src/scan-skel.l: %option debug.
+ Scan strings of non-@ or \n instead of character by character.
+ (scan_skel): Handle trace_skeleton.
+ (QPUTS): New.
+ (@output_parser_name@, @output_header_name@): ``Restore'' their
+ support (used to be M4 macros).
+ * data/yacc.c: Quote larger chunks, a la glr.c.
+ * data/lalr1.cc: Likewise.
+ The header guards are no longer available, so use some other
+ string than `YYLSP_NEEDED'.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ Make the ``Printers and Destructors'' test more verbose, taking
+ `yacc.c''s behavior as (possibly wrong) reference.
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
+ instead of fprint on stdout.
+ Set and report the last_line of the symbols.
+ Consistently display values and locations.
+
+2002-11-16 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c: Avoid over-quoting of __line__ and __file__.
+
+2002-11-15 Paul Eggert <eggert@twinsun.com>
+
+ * tests/actions.at (Actions after errors): New test case.
+
+ * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
+ src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
+ tests/action.at, tests/calc.at, tests/conflicts.at,
+ tests/cxx-type.at, tests/regression.at:
+ "parse error" -> "syntax error" for POSIX compatibility.
+ "parsing stack overflow..." -> "parser stack overflow" so
+ that code matches Bison documentation.
+
+2002-11-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (declaration): Have %parse-param and %lex-param
+ take two BRACED_CODE, not two string_content.
+ Free the scanner's obstack when we are done.
+ (code_content): New.
+ * tests/calc.at: Adjust.
+ * doc/bison.texinfo: Adjust.
+ Also, make sure to include the `,' for these declarations.
+
+2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
+ definition; avoids potential autoreconf problems.
+
+2002-11-15 Akim Demaille <akim@epita.fr>
+
+ Always check the value returned by yyparse.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
+ returned by yyparse.
+ (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
+ Adjust calls.
+ * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
+ returned by yyparse.
+
+2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
+ on input.at test.
+
+2002-11-14 Paul Eggert <eggert@twinsun.com>
+
+ * src/output.c (output_skeleton): Call xfopen instead of
+ duplicating xfopen's body.
+
+ Fix bugs reported by Nelson H. F. Beebe in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001893.html>.
+
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
+ "$CC -E foo.h" is allowed, as this doesn't work with the Portland
+ Group compiler. Instead, use "$CC -E bar.c". Include the .h
+ file twice in the grammar, as an extra check.
+
+ * tests/input.at (Torturing the Scanner): Surround the
+ backslash-newline tests with "#if 0", to make it less likely that
+ we'll run into compiler bugs. Bring back solitary \ inside
+ comment, but add a closing comment to work around HP C bug. Don't
+ test backslash-newline in C character constant. This should fix
+ the input.at bug reported by Nelson H. F. Beebe in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001893.html>.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
+ status of the compiler.
+ Calling `exit 1' is no longer needed.
+ Reported by Nelson H. F. Beebe.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * tests/atlocal.in (CPPFLAGS): We have config.h.
+ * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
+ New.
+ * tests/actions.at, tests/calc.at, tests/conflicts.at,
+ * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
+ * tests/regression.at, tests/torture.at: Use them for all the
+ grammars that are to be compiled.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
+ * doc/bison.texinfo (GLR Parsers): Document `inline'.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Various formatting changes (alignments in
+ samples, additional @group/@end group, GCS in samples.
+ Use @deffn instead of simple @table to define the directives,
+ macros, variables etc.
+
+2002-11-13 Paul Eggert <eggert@twinsun.com>
+
+ Fix some bugs reported by Albert Chin-A-Young in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001881.html>.
+
+ * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
+ -o c"; the HP C compiler chatters during compilation.
+ Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
+ * tests/headers.at (export YYLTYPE): Likewise.
+
+ * tests/input.at (Torturing the Scanner): Remove lines containing
+ solitary backslashes, as they tickle a bug in the HP C compiler.
+
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
+ comments, since they're not portable. Use GNU coding style.
+
+2002-11-13 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c: Leave bigger chunks of quoted text.
+ (YYDSYMPRINTF): New.
+ Use it to report symbol activities.
+ * data/glr.c (YYDSYMPRINTF): New.
+ Use it.
+
+2002-11-12 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75b.
+
+ * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
+ (yyglrReduce): Return yyok, not 0.
+ This should avoid the enumerated-type warnings reported
+ by Nelson H.F. Beebe in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001872.html>.
+
+ * lib/bbitset.h (BITSET_INLINE): Remove.
+ * lib/bitset.h [! BITSET_INLINE]: Remove.
+ (bitset_set, bitset_reset, bitset_test): Rename local vars
+ to avoid shadowing warnings by GCC.
+
+ * data/glr.c (inline): Remove #define. It's the user's
+ responsibility to #define it away, just like 'const'.
+ This fixes one of the bugs reported by Nelson H.F. Beebe in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001873.html>.
+
+ * Makefile.maint (po-check): Scan .l and .y files instead of the
+ .c and the .h files that they generate. This fixes the bug
+ reported by Tim Van Holder in:
+ <http://mail.gnu.org/pipermail/bison-patches/2002-November/001352.html>
+ Look for N_ as well as for _. Try to avoid matching #define for
+ N_ and _.
+ * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
+ src/system.h. Add src/parse-gram.y, src/scan-gram.l.
+ * src/scan-gram.l: Revamp regular expressions so that " and '
+ do not confuse xgettext.
+
+ * src/struniq.h (struniq_new): Do not declare the return type
+ to be 'const'; this violates the C standard.
+ * src/struniq.c (struniq_new): Likewise.
+
+2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
+ duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
+ linker.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Sync with Autoconf:
+ (local_updates): New.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * po/POTFILES.in (src/lalr.c, src/state.c): Remove
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
+ locations.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
+ not yyvalue.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
+ Use it to test the GLR parser.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
+ defines it.
+ * data/glr.c (yystos): New.
+ (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
+ (YYDSYMPRINT): New.
+ (yyval): Don't define it, it is handled via M4.
+ (yyrecoverParseError): Free verbosely the discarded symbols.
+ * data/yacc.c (yysymprint): Remove, rather...
+ (b4_yysymprint_generate): invoke.
+ * data/c.m4 (b4_yysymprint_generate): New.
+ Accept pointers as arguments, as opposed to the version from
+ yacc.c.
+ (b4_yydestruct_generate): Likewise.
+ * tests/cations.at (Printers and Destructors): Use Bison directives
+ instead of CPP macros.
+ Don't rely on internal details.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
+ * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
+ Don't work on yychar (i.e., do set it to YYEMPTY, don't match
+ it against YYEMPTY and so forth), work on yytoken (i.e., set
+ it to YYEMPTY etc.).
+ (yydestruct): Replace with a b4_yydestruct_generate invocation.
+ (b4_symbol_actions): Remove.
+ * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
+ for 0, end-of-input.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Destructor Decl): New.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/tables.c (tables_generate): Use free for pointers that
+ cannot be NULL, not XFREE.
+ (pack_vector): Use assert, not fatal, for bound violations.
+ * src/state.c (state_new): Likewise.
+ * src/reader.c (reader): Likewise.
+ * src/lalr.c (set_goto_map): Likewise.
+ * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
+ the file name.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l, src/reader.h (scanner_last_string_free):
+ Restore.
+ * src/scan-gram.l (last_string): Is global to the file, not to
+ yylex.
+ * src/parse-gram.y (input): Don't append the epilogue here,
+ (epilogue.opt): do it here, and free the scanner's obstack.
+ * src/reader.c (epilogue_set): Rename as...
+ (epilogue_augment): this.
+ * data/c.m4 (b4_epilogue): Defaults to empty.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (long_options): Remove duplicates.
+ * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
+ Remove.
+ * doc/bison.rnh: Remove.
+ * doc/bison.texinfo (VMS Invocation): Remove.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/struniq.h, src/struniq.c (struniq_t): Is const.
+ (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
+
+ Use struniq for symbols.
+
+ * src/symtab.h (symbol_t): The tag member is a struniq.
+ (symbol_type_set): Adjust.
+ * src/symtab.c (symbol_new): Takes a struniq.
+ (symbol_free): Don't free the tag member.
+ (hash_compare_symbol_t, hash_symbol_t): Rename as...
+ (hash_compare_symbol, hash_symbol): these.
+ Use the fact that tags as struniqs.
+ (symbol_get): Use struniq_new.
+ * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
+ Returns a strniq.
+ * src/reader.h (merger_list, grammar_currentmerge_set): The name
+ and type members are struniqs.
+ * src/reader.c (get_merge_function)
+ (grammar_current_rule_merge_set): Adjust.
+ (TYPE, current_type): Are struniq.
+
+ Use struniq for file names.
+
+ * src/files.h, src/files.c (infile): Split into...
+ (grammar_file, current_file): these.
+ * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
+ * src/reduce.c (reduce_print): Likewise.
+ * src/getargs.c (getargs): Likewise.
+ * src/complain.h, src/complain.c: Likewise.
+ * src/main.c (main): Call struniqs_new early enough to use it for
+ file names.
+ Don't free the input file name.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_free): Remove dead deactivated code:
+ type_name are properly removed.
+ Don't use XFREE to free items that cannot be NULL.
+ * src/struniq.h, src/struniq.c: New.
+ * src/main.c (main): Initialize/free struniqs.
+ * src/parse-gram.y (%union): Add astruniq member.
+ (yyprint): Adjust.
+ * src/scan-gram.l (<{tag}>): Return a struniq.
+ Free the obstack bit that used to store it.
+ * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
+
+2002-11-11 Paul Eggert <eggert@twinsun.com>
+
+ Revamp to fix many (but not all) of the C- and M4-related quoting
+ problems. Among other things, this fixes the Bison bug reported
+ by Jan Hubicka when processing the Bash grammar; see:
+ <http://mail.gnu.org/pipermail/bison-patches/2002-November/001329.html>
+
+ Use new @ escapes consistently. Represent brackets with @{ and @}
+ rather than @<:@ and @:>@, since this works a bit better with dumb
+ editors like vi. Represent @ with @@, since @ is now consistently
+ an escape. Use @oline@ and @ofile@ rather than __oline__ and
+ __ofile__, to avoid unexpected expansions. Similarly, use @output
+ rather than #output.
+
+ * data/c.m4 (b4_copyright): Omit file name from comment, since
+ the file name could contain "*/".
+ (b4_synclines_flag): Don't quote the 2nd argument; it should already
+ be quoted. All uses changed.
+
+ * data/glr.c: Use new @ escapes consistently.
+ (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
+ b4_output_header_suffix, b4_output_header_name, b4_header_guard):
+ Remove, since they couldn't handle arbitrary characters in file
+ names.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+
+ * src/files.c (output_infix): Remove; all uses removed.
+ * src/files.h: Likewise.
+
+ * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
+ mishandled funny characters in file names, and anyway it isn't
+ needed any more.
+ * data/yacc.c: Likewise.
+ * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
+
+ * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
+ * data/yacc.c: Likewise.
+
+ * src/muscle_tab.c: Include quotearg.h, since we need to quote C
+ strings now.
+ (muscle_init): Quote filename as a C string.
+ * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
+ (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
+ * src/output.c (escaped_file_name_output): New function.
+ (prepare_symbols): Quote tokens for M4.
+ (prepare): Don't insert output_infix, output_prefix,
+ output_parser_name, output_header_name; this is now down by scan-skel.
+ Insert skeleton as a C string.
+
+ * src/output.c (user_actions_output, symbol_destructors_output,
+ symbol_printers_output): Quote filenames for C and M4.
+ * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+ * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
+ escapes other than \\ and \'; this simplifies the code.
+ (<SC_STRING>): Likewise, for \\ and \".
+ (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
+ SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
+ Use new escapes @{ and @} for [ and ].
+
+ * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
+ them with auto vars.
+ Switch to new escape scheme, where @ is the escape character uniformly.
+ Abort if a stray escape character is found. Avoid unbounded input
+ buffer when parsing non-escaped text.
+
+ * tests/input.at (Torturing the Scanner): Add tests that @oline@,
+ __oline__, #output, $@, and @{ do not have unintended meanings.
+
+2002-11-09 Paul Eggert <eggert@twinsun.com>
+
+ Fix the test failure due to GCC warnings described in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-November/001815.html>.
+ * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
+ evaluate to 0 if it's impossible for NINF to be in the respective
+ table.
+ (yygetLRActions, yyrecoverParseError): Use them.
+
+ * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
+ counted in the token inserted at end of file. Now takes
+ location_t *, not location_t, so that the location can be
+ adjusted. All uses changed.
+
+ * tests/regression.at (Invalid inputs): Adjust wording in
+ diagnostic to match the new behavior.
+
+ * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
+ AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
+ AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
+ abort ();'. This reduces the runtime of the "Many lookaheads"
+ test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
+ GCC 3.2.
+
+2002-11-07 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.y (CHARACTER): Remove unused token.
+ All uses removed.
+
+ * src/scan-gram.l: Remove stack option. We no longer use the
+ stack, since the stack was never deeper than 1; instead, use the
+ new auto var c_context to record the stacked value.
+
+ Remove nounput option. At an unexpected end of file, we now unput
+ the minimal input necessary to end cleanly; this simplifies the
+ code.
+
+ Avoid unbounded token sizes where this is easy.
+
+ (unexpected_end_of_file): New function.
+ Use it to systematize the error message on unexpected EOF.
+ (last-string): Now auto, not static.
+ (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
+ (scanner_last_string_free): Remove; not used.
+ (percent_percent_count): Move decl to just before use.
+ (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
+ not the (never otherwised-used) CHARACTER.
+
+2002-11-07 Akim Demaille <akim@epita.fr>
+
+ Let yyerror always receive the msg as last argument, so that
+ yyerror can be variadic.
+
+ * data/yacc.c (b4_yyerror_args): New.
+ Use it when calling yyerror.
+ * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
+ Use it when calling yyerror.
+ * doc/bison.texinfo (Error Reporting): Adjust.
+ * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ #line should have quoted strings.
+ Ideally, this should be done by m4_quotearg.
+
+ * src/scan-skel.l: Include quotearg.h.
+ Quote __ofile__.
+ * src/output.c (symbol_printers_output)
+ (symbol_destructors_output): Quote the file name.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid inputs): Adjust to the recent
+ messages.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ Restore --no-lines.
+ Reported by Jim Kent.
+
+ * data/c.m4 (b4_syncline): New.
+ * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
+ * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
+ * src/output.c (user_actions_output): Likewise.
+ (prepare): Define 'b4_synclines_flag'.
+ * src/muscle_tab.c (muscle_init): Don't define b4_linef.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): Free `infile'.
+ * src/scan-gram.l (handle_syncline): New.
+ Recognize `#line'.
+ * src/output.c (user_actions_output, symbol_destructors_output)
+ (symbol_printers_output): Use the location's file name, not
+ infile.
+ * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/tables.c (matching_state): Don't allow states to match if
+ either has GLR conflict entries.
+
+2002-11-05 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Use more accurate diagnostics, e.g.
+ "integer out of range" rather than "invalid value".
+ * tests/input.at (Invalid $n, Invalid @n): Change expected wording
+ accordingly.
+
+ Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
+ Also, remove one static variable in the scanner.
+
+ * src/scan-gram.l (braces_level): Now auto, not static.
+ Initialize to zero if the compiler is being picky.
+ (INITIAL): Clear braces_level instead of incrementing it.
+ (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
+ as POSIX 1003.1-2001 requires.
+ * src/system.h (IF_LINT): New macro, taken from coreutils.
+ * configure.ac: Define "lint" if --enable-gcc-warnings.
+
+2002-11-05 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: When it starts with `%', complain about the
+ whole directive, not just that `invalid character: %'.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Update from Autoconf.
+ (update, cvs-update, po-update, do-po-update): New.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
+ and yyerror.
+ Have yyerror `use' its arguments.
+ * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
+ returns true when location & yacc & pure & parse-param.
+ (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
+ clashes.
+ * src/scan-gram.l: Use [\'] instead of ['] to pacify
+ font-lock-mode.
+ Use complain_at.
+ Use quote, not quote_n since LOCATION_PRINT no longer uses the
+ slot 0.
+
+2002-11-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/reader.c (get_merge_function, grammar_current_rule_check):
+ Use consistent diagnostics for reporting type name clashes.
+ Quote the types with <>, for consistency with Yacc.
+ * tests/input.at (Type Clashes): Adjust to diagnostic changes.
+
+2002-11-03 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
+ New.
+ * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
+ (b4_parse_param): Remove.
+ Use b4_identification.
+ Propagate b4_pure_args where needed to pass them to yyerror.
+ * data/glr.m4 (b4_parse_param): Remove.
+ (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
+ (b4_lpure_formals): New.
+ Use b4_identification.
+ (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
+ b4_user_formals and b4_user_args.
+ (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
+ (yyreportAmbiguity): When using a pure parser, also need
+ the location, and the parse-params.
+ Adjust callers.
+ (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
+ When using a pure parser, also need the parse-params.
+ Adjust callers.
+ * tests/calc.at: Test pure (%pure-parser) and absolutely pure
+ (%pure-parser + %parse-param) LALR and GLR parsers.
+ (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
+ AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
+ AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
+ (_AT_DATA_CALC_Y): Equip for purity of yyerror.
+ (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
+ * doc/bison.texinfo: Untabify the whole file.
+ (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
+ (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
+ (Error Reporting): Adjust to these new directives.
+ Document %error-verbose, deprecate YYERROR_VERBOSE.
+
+2002-11-03 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
+ AT_CHECK_CALC_GLR invocations to use % directives, instead of
+ command line options.
+ * tests/cxx-type.at: Formatting changes.
+
+2002-11-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
+ to count columns correctly, and to check for invalid inputs.
+
+ Use mbsnwidth to count columns correctly. Account for tabs, too.
+ Include mbswidth.h.
+ (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
+ (extend_location): New function.
+ (YY_LINES): Remove.
+
+ Handle CRLF in C code rather than in Lex code.
+ (YY_INPUT): New macro.
+ (no_cr_read): New function.
+
+ Scan UCNs, even though we don't fully handle them yet.
+ (convert_ucn_to_byte): New function.
+
+ Handle backslash-newline correctly in C code.
+ (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
+ (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
+ all uses changed.
+ (tag, splice): New EREs. Do not allow NUL or newline in tags.
+ Use {splice} wherever C allows backslash-newline.
+ YY_STEP after space, newline, vertical-tab.
+ ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
+
+ (letter, id): Don't assume ASCII; e.g., spell out a-z.
+
+ ({int}, handle_action_dollar, handle_action_at): Check for integer
+ overflow.
+
+ (YY_STEP): Omit trailing semicolon, so that it's more like C.
+
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
+ as well as \000. Check for UCHAR_MAX, not 255.
+ Allow \x with an arbitrary positive number of digits, as in C.
+ Check for overflow here.
+ Allow \? and UCNs, for compatibility with C.
+
+ (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
+ with quote slot used by complain_at.
+
+ * tests/input.at: Add tests for backslash-newline, m4 quotes
+ in symbols, long literals, and funny escapes in strings.
+
+ * configure.ac (jm_PREREQ_MBSWIDTH): Add.
+ * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
+ * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
+ * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
+ * m4/mbswidth.m4: New file, from GNU coreutils.
+
+ * doc/bison.texinfo (Grammar Outline): Document // comments.
+ (Symbols): Document that trigraphs have no special meaning in Bison,
+ nor is backslash-newline allowed.
+ (Actions): Document that trigraphs have no special meaning.
+
+ * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
+ no longer used.
+
+2002-11-02 Paul Eggert <eggert@twinsun.com>
+
+ * src/reader.c: Don't include quote.h; not needed.
+ (get_merge_function): Reword warning to be consistent with
+ type clash diagnostic in grammar_current_rule_check.
+
+ * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
+ bug in trigraph handling.
+
+ * src/output.c (prepare_symbols): When printing token names,
+ escape "[" as "@<:@" and likewise for "]".
+
+ * src/system.h (errno): Remove declaration, as we are now
+ assuming C89 or better, and C89 guarantees errno.
+
+2002-10-30 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
+ Check for close failures.
+ * src/files.h (xfclose): Return void, not int, since it always
+ returned zero.
+ * src/files.c (xfclose): Likewise. Report I/O error if ferror
+ indicates one.
+ * src/output.c (output_skeleton): Use xfclose rather than fclose
+ and ferror. xfclose now checks ferror.
+
+ * data/glr.c (YYLEFTMOST_STATE): Remove.
+ (yyreportTree): Use a stack-based leftmost state. This avoids
+ our continuing battles with bogus warnings about initializers.
+
+2002-10-30 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
+ #if.
+
+2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * tests/glr-regr1.at: New test for reported regressions.
+ * tests/testsuite.at: Add glr-regr1.at test.
+ * tests/Makefile.am: Add glr-regr1.at test.
+
+2002-10-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75a.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
+ we use malloc. Don't assume 'A' through 'Z' are contiguous.
+ Don't assume strdup exists; POSIX says its an XSI extension.
+ Check for buffer overflow on input.
+
+2002-10-24 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): Don't disable M4sugar comments
+ too soon: it results in comments being expanded.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
+ first output.
+
+2002-10-24 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (m4_int_type): New.
+ * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
+ char' as only yacc.c wants K&R portability.
+ * data/glr.c (yysigned_char): Remove.
+ * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
+ Reported by Quoc Peyrot.
+
+2002-10-23 Paul Eggert <eggert@twinsun.com>
+
+ * src/main.c (main): With --trace=time, report times even if a
+ non-fatal error occurs. Formerly, the times were reported in some
+ such cases but not in others.
+ * src/reader.c (reader): Just return if a complaint has been issued,
+ instead of exiting, so that 'main' can report times.
+
+2002-10-22 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Include sys/types.
+ Reported by Bert Deknuydt.
+
+2002-10-23 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
+ Suggested by Art Haas.
+
+2002-10-22 Paul Eggert <eggert@twinsun.com>
+
+ * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
+ decl; not needed any more.
+ * src/main.c (main): Use return to exit, undoing yesterday's change.
+ The last OS that we could find where this wouldn't work is
+ SunOS 3.5, and that's too old to worry about now.
+
+ * data/glr.c (struct yyltype): Define members even when not
+ doing locations. This is more consistent with yacc.c, and it
+ works around the following bug reports:
+ http://mail.gnu.org/pipermail/bug-bison/2002-October/001764.html
+ http://mail.gnu.org/pipermail/bug-bison/2002-October/001769.html
+ and I hope it also fixes this bug report:
+ http://mail.gnu.org/pipermail/bug-bison/2002-October/001748.html
+
+ * doc/bison.texinfo: Minor spelling and typographical fixes. Use
+ @acronym consistently. Standardize on "Yacc" instead of "YACC",
+ "Algol" instead of "ALGOL". Give a bit more history about BNF.
+
+2002-10-22 Akim Demaille <akim@epita.fr>
+
+ * data/README: New.
+
+2002-10-21 Paul Eggert <eggert@twinsun.com>
+
+ Be consistent about 'bool'; the old code used an enum in one
+ module and an int in another, and this violates the C standard.
+ * m4/stdbool.m4: New file, from coreutils 4.5.3.
+ * configure.ac (AC_HEADER_STDBOOL): Add.
+ * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
+ * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
+ * src/symtab.c (hash_compare_symbol_t): Likewise.
+ * src/system.h (bool, false, true): Use a definition consistent
+ with ../lib/hash.c. All uses changed.
+
+ * src/complain.c (warning_issued): Renamed from warn_message_count,
+ so that we needn't worry about integer overflow (!).
+ Now of type bool. All uses changed.
+ (complaint_issued): Renamed from complain_message_count; likewise.
+
+ * src/main.c (main): Use exit to exit with failure.
+
+ * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
+ rather than 1 and 0.
+ * src/main.c (main): Likewise.
+ * src/getargs.c (getargs): Likewise.
+ * src/reader.c (reader): Likewise.
+
+ * src/getarg.c (getargs): Remove duplicate code for
+ "Try `bison --help'".
+
+ * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
+ What was that "2" for?
+
+ * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
+ * src/getargs.c (usage): Likewise.
+
+ * src/getargs.c (getargs): When there are too few operands, report
+ the last one. When there are too many, report the first extra
+ one. This is how diffutils does it.
+
+2002-10-20 Paul Eggert <eggert@twinsun.com>
+
+ Remove K&R vestiges.
+ * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
+ * src/complain.c (VA_START): Remove. Assume prototypes.
+ (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
+ (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
+ fatal): Assume prototypes.
+ * src/complain.h: Assume prototypes.
+ * src/system.h (PARAMS): Remove.
+ Include <limits.h> unconditionally, since it's guaranteeed even
+ for a freestanding C89 compiler.
+ (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
+ * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
+ * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
+ (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
+ (yyresolveStates, yyresolveAction, yyresolveStack)
+ (yyprocessOneStack): Use them.
+ (yy_reduce_print): New.
+ * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_c_ansi_args): Recognize functions with no
+ arguments and output `void'.
+ (b4_c_function): Rename as...
+ (b4_c_function_def): this.
+ (b4_c_function_decl, b4_c_ansi_function_def)
+ (b4_c_ansi_function_decl): New.
+ Change the interpretation of the arguments: before `int, foo', now
+ `int foo, foo'.
+ * data/yacc.c (yyparse): Prototype and define thanks to these.
+ Adjust b4_c_function_def uses.
+ * data/glr.c (yyparse): Likewise, but ANSI only.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Move the definition of `tokens_number',
+ `nterms_number', `undef_token_number', `user_token_number_max'
+ to...
+ (prepare_tokens): Here.
+ (prepare_tokens): Rename as...
+ (prepare_symbols): this.
+ (prepare): Move the definition of `rules_number' to...
+ (prepare_rules): here.
+ (prepare): Move the definition of `last', `final_state_number',
+ `states_number' to...
+ (prepare_states): here.
+ * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/tables.h, src/tables.c, src/output.c: Comment changes.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
+ * data/c.m4: here.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
+ * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
+ `pair'.
+ (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
+ `name' to...
+ * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
+ (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
+ These.
+
+2002-10-19 Paul Eggert <eggert@twinsun.com>
+
+ Do not create a temporary file, as that involves security and
+ cleanup headaches. Instead, use a pair of pipes.
+ Derived from a suggestion by Florian Krohm.
+ * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
+ * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
+ * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
+ (BISON_PREREQ_SUBPIPE): Add.
+ * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
+ Add subpipe.h, subpipe.c.
+ * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
+ * po/POTFILES.in: Add lib/subpipe.c.
+ * src/output.c: Include "subpipe.h".
+ (m4_invoke): Remove decl.
+ (scan_skel): New decl.
+ (output_skeleton): Use pipe rather than temporary file for m4 input.
+ Check that m4sugar.m4 is readable, to avoid deadlock.
+ Check for pipe I/O error.
+ * src/scan-skel.l (readpipe): Remove decl.
+ (scan_skel): New function, to be used in place of m4_invoke.
+ Read from stream rather than file.
+
+ * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
+ float, as this generates a warning on Solaris 8 + GCC 3.2 with
+ --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
+ this generates a more-accurate value anyway.
+
+ * lib/timevar.c (timervar_accumulate): Rename locals to
+ avoid confusion with similarly-named more-global.
+ * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
+
+ * src/output.c (prepare): Use xstrdup to convert char const *
+ to char *, to avoid GCC warning.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
+ LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
+ Use them to have `calc.y' ready for %pure-parser.
+ * data/yacc.c (YYLEX): Pass a yylex return type to
+ b4_c_function_call.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ Prototype support of %lex-param and %parse-param.
+
+ * src/parse-gram.y: Add the definition of the %lex-param and
+ %parse-param tokens, plus their rules.
+ Drop the `_' version of %glr-parser.
+ Add the "," token.
+ * src/scan-gram.l (INITIAL): Scan them.
+ * src/muscle_tab.c: Comment changes.
+ (muscle_insert, muscle_find): Rename `pair' as `probe'.
+ * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
+ (muscle_entry_s): The `value' member is no longer const.
+ Adjust all dependencies.
+ * src/muscle_tab.c (muscle_init): Adjust: use
+ MUSCLE_INSERT_STRING.
+ Initialize the obstack earlier.
+ * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
+ (muscle_pair_list_grow): New.
+ * data/c.m4 (b4_c_function_call, b4_c_args): New.
+ * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
+ * tests/calc.at: Use %locations, not --locations.
+ (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (usage): Take status as argument and exit
+ accordingly.
+ Report the traditional `Try ... --help' message when status != 0.
+ (usage, version): Don't take a FILE * as arg, it is pointless.
+ (getargs): When there is an incorrect number of arguments, make it
+ an error, and report it GNUlically thanks to `usage ()'.
+
+2002-10-18 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyreportParseError): Don't assume that sprintf
+ yields the length of the printed string, as this is not true
+ on SunOS 4.1.4. Reported by Peter Klein.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
+ * tests/conflicts.at (%nonassoc and eof): Likewise.
+ Fixes SunOS 4.1.4 test failure reported by Peter Klein.
+
+2002-10-17 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
+ * src/getargs.c (trace_types, trace_args): Adjust.
+ * src/reader.c (grammar_current_rule_prec_set)
+ (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
+ Standardize error messages.
+ And s/@prec/%prec/!
+ (reader): Use trace_flag to enable scanner/parser debugging,
+ instead of an adhoc scheme.
+ * src/scan-gram.l: Remove trailing debugging code.
+
+2002-10-16 Paul Eggert <eggert@twinsun.com>
+
+ * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
+ MUSCLE_TAB_H.
+
+ * NEWS: Officially drop support for building Bison with K&R C,
+ since it didn't work anyway and it's not worth worrying about.
+ * Makefile.maint (wget_files): Remove ansi2knr.c.
+ (ansi2knr.c-url_prefix): Remove.
+ * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
+ * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+ * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-10-15 Paul Eggert <eggert@twinsun.com>
+
+ Stop using the "enum_" trick for K&R-style function definitions;
+ it confused me, and I was the author! Instead, assume that people
+ who want to use K&R C compilers (when using these modules in GCC,
+ perhaps?) will run ansi2knr.
+
+ * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
+ All uses of "enum_" changed to "enum ".
+ * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+ * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+ * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
+ abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
+ abitset_copy1, abitset_disjoint_p, abitset_empty_p,
+ abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
+ abitset_not, abitset_ones, abitset_or, abitset_or_and,
+ abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
+ abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
+ abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
+ Use function prototypes; this removes the need for declaring
+ static functions simply to provide their prototypes.
+ * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
+ bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
+ bitset_count_, bitset_create, bitset_dump, bitset_first,
+ bitset_free, bitset_init, bitset_last, bitset_next,
+ bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
+ bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
+ bitset_print, bitset_release_memory, bitset_toggle_,
+ bitset_type_choose, bitset_type_get, bitset_type_name_get,
+ debug_bitset): Likewise.
+ * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
+ * lib/bitset_stats.c (bitset_log_histogram_print,
+ bitset_percent_histogram_print, bitset_stats_and,
+ bitset_stats_and_cmp, bitset_stats_and_or,
+ bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
+ bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
+ bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
+ bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
+ bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
+ bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
+ bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
+ bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
+ bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
+ bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
+ bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
+ bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
+ bitset_stats_zero): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+ bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+ bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
+ ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
+ ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
+ ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
+ ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
+ ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
+ ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
+ ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
+ ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
+ ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
+ ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
+ Likewise.
+ * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
+ lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
+ lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
+ lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
+ lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
+ lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
+ lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
+ lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
+ lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
+ lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
+ lbitset_xor_cmp, lbitset_zero): Likewise.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ Version 1.75.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (maintainer-check-posix): New.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
+ member.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * src/tables.c (table_ninf_remap): base -> tab.
+ Reported by Matt Rosing.
+
+2002-10-14 Paul Eggert <eggert@twinsun.com>
+
+ * tests/action.at, tests/calc.at, tests/conflicts.at,
+ tests/cxx-type.at, tests/headers.at, tests/input.at,
+ tests/regression.at, tests/synclines.at, tests/torture.at:
+ Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
+ so that the tests still work even if POSIXLY_CORRECT is set.
+ * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
+
+ * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
+ for portability to K&R hosts. Fix typo: signed char is guaranteed
+ only to 127, not to 128.
+ * data/glr.c (yysigned_char): New type.
+ * data/yacc.c (yysigned_char): Likewise.
+ * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
+
+2002-10-13 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
+ true due to limited range of data type" warning from GCC.
+
+ * data/c.m4 (b4_token_defines): Protect against double-inclusion
+ by wrapping enum yytokentype's definition inside #ifndef
+ YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
+ Un yy- yyrhs to avoid the name clash with the global YYRHS.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Update from Autoconf 2.54.
+ * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_state): Separate the list of solved conflicts
+ from the other items.
+ * tests/conflicts.at (Resolved SR Conflicts): Adjust.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ Let nondeterministic skeletons be usable with deterministic
+ tables.
+
+ With the patch, GAWK compiled by GCC without -O2 passes its test
+ suite using a GLR parser driven by LALR tables. It fails with -O2
+ because `struct stat' gives two different answers on my machine:
+ 88 (definition of an auto var) and later 96 (memset on this var).
+ Hence the stack is badly corrumpted. The headers inclusion is to
+ blame: if I move the awk.h inclusion before GLR's system header
+ inclusion, the two struct stat have the same size.
+
+ * src/tables.c (pack_table): Always create conflict_table.
+ (token_actions): Always create conflict_list.
+ * data/glr.c (YYFLAG): Remove, unused.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
+ (O0FLAGS): New.
+ (VALGRIND, GXX): New.
+ * tests/atlocal.in (CFLAGS): Use O0FLAGS.
+ * tests/bison.in: Run $PREBISON a pre-command.
+ * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
+ (maintainer-check-g++): New.
+ * Makefile.am (maintainer-check): New.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c: Formatting changes.
+ Tweak some trace messages to match yacc.c's.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ GLR parsers sometimes raise parse errors instead of performing the
+ default reduction.
+ Reported by Charles-Henry de Boysson.
+
+ * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
+ check the length of the traces when %glr.
+ (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
+ GLR's traces.
+ (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
+ Test GLR parsers.
+ * data/glr.c (YYLEFTMOST_STATE): Fix its value.
+ (yyltype): Remove the yy prefix from the member names.
+ (yytable): Complete its comment.
+ (yygetLRActions): Map error action number from YYTABLE from
+ YYTABLE_NINF to 0.
+ (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
+ (which was a bug: it should have been YYTABEL_NINF, and yet it was
+ not satisfying as we could compare an YYACTION computed from
+ YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
+ only value for error actions.
+ (yyreportParseError): In verbose parse error messages, don't issue
+ `error' in the list of expected tokens.
+ * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
+ next action to perform to match glr.c's decoding.
+ (yytable): Complete its comment.
+
+2002-10-13 Paul Eggert <eggert@twinsun.com>
+
+ Fix problem reported by Henrik Grubbstroem in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-October/001670.html>:
+ "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
+ because the Bison parser reads the second action before reducing
+ the first one.
+ * src/scan-gram.l (rule_length): New static var.
+ Use it to keep track of the rule length in the scanner, since
+ we can't expect the parser to be in lock-step sync with the scanner.
+ (handle_action_dollar, handle_action_at): Use this var.
+ * tests/actions.at (Exotic Dollars): Test for the problem.
+
+2002-10-12 Paul Eggert <eggert@twinsun.com>
+
+ * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
+ * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
+ Include <sys/time.h> when checking for clock_t and struct tms.
+ Use same include order as source.
+ This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-October/001674.html>.
+
+ * lib/timevar.c: Update copyright date and clarify comments.
+ (get_time) [IN_GCC]: Keep the GCC version for reference.
+
+ * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
+ GCC version as of today, then merge Bison's changes.
+ Change "GCC" to "Bison" in copyright notice. timevar.def's
+ author is Akim, so change that too.
+
+ * src/reader.c (grammar_current_rule_check):
+ Don't worry about the default action if $$ is untyped.
+ Prevents bogus warnings reported by Jim Gifford in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-October/001673.html>.
+
+ * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
+ * data/glr.c, data/lalr1.cc, data/yacc.c:
+ Output token definitions before the first part of user declarations.
+ Fixes compatibility problem reported by Jim Gifford for kbd in
+ <http://mail.gnu.org/pipermail/bug-bison/2002-October/001672.html>.
+
+2002-10-11 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
+ (yyparse): here. This undoes some of the 2002-07-25 change.
+ Compatibility problem reported by Ralf S. Engelschall with
+ OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
+
+2002-10-11 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at Characters Escapes): New.
+ * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
+ characters.
+ Reported by Jan Nieuwenhuizen.
+
+2002-10-11 Akim Demaille <akim@epita.fr>
+
+ * po/id.po: New.
+
+2002-10-10 Paul Eggert <eggert@twinsun.com>
+
+ Portability fixes for bitsets; this also avoids several GCC
+ warnings.
+
+ * lib/abitset.c: Include <stddef.h>, for offsetof.
+ * lib/lbitset.c: Likewise.
+
+ * lib/abitset.c (abitset_bytes): Return a size that is aligned
+ properly for vectors of objects. Do not assume that adding a
+ header size to a multiple of a word size yields a value that is
+ properly aligned for the whole union.
+ * lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+ * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
+ unique names for structures.
+ * lib/ebitset.c (ebitset_bytes): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+
+ * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
+ abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
+ abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
+ abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
+ abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
+ abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
+ abitset_or_and_cmp, abitset_copy): Supply prototype decls,
+ to improve the type-checking that GCC can do.
+ * lib/bitset.c (bitset_op4_cmp): Likewise.
+ * lib/bitset_stats.c (bitset_stats_count,
+ bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
+ bitset_stats_copy, bitset_stats_disjoint_p,
+ bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
+ bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
+ bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
+ bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
+ bitset_stats_and_or_cmp, bitset_stats_andn_or,
+ bitset_stats_andn_or_cmp, bitset_stats_or_and,
+ bitset_stats_or_and_cmp): Likewise.
+ * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
+ lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
+ lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
+ lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
+
+ * lib/abitset.h: Include bitset.h, not bbitset.h.
+ * lib/ebitset.h: Likewise.
+ * lib/lbitset.h: Likewise.
+
+ * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
+ All instances of parameters of type enum bitset_opts are now of
+ type enum_bitset_opts, to conform to the C Standard, and similarly
+ for enum_bitset_type.
+ * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+ * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+ Do not use "struct bitset_struct" to mean different things in
+ different modules. Not only is this confusing, it violates
+ the C Standard, which requires that structure types in different
+ modules must be compatible if one is to be passed to the other.
+ * lib/bbitset.h (bitset): Now points to a union, not to a struct.
+ All instances of "struct bitset_struct *" replaced with "bitset".
+ * lib/bitset.h (struct bitset_struct): Remove, replacing with....
+ (union bitset_union, struct abitset_struct, struct ebitset_struct,
+ struct lbitset_struct, struct bitset_stats_struct): New types.
+ All uses of struct bitset_struct changed to union bitset_union,
+ etc.
+ * lib/abitset.c (struct abitset_struct, abitset,
+ struct bitset_struct): Remove.
+ * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
+ struct bitset_struct): Remove.
+ * lib/ebitset.c (struct ebitset_struct, ebitset, struct
+ bitset_struct): Remove.
+ * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
+ Likewise.
+
+ Do not call a function of type T using a call that assumes the
+ function is of a different type U. Standard C requires that a
+ function must be called with a type that is compatible with its
+ definition.
+ * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+ New decls.
+ * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+ New functions.
+ * lib/ebitset.c (PFV): Remove.
+ * lib/lbitset.c (PFV): Likewise.
+ * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
+ ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
+ decls.
+ (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
+ (ebitset_vtable): Use them.
+ * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
+ lbitset_xor): New functions.
+ (lbitset_vtable): Use them.
+
+ * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
+ Declare.
+
+ * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
+ GCC warning.
+ * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
+ Use offsetof, for simplicity.
+
+2002-10-06 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
+ the same width as int. This reapplies a hunk of the 2002-08-12 patch
+ <http://mail.gnu.org/pipermail/bison-patches/2002-August/001111.html>,
+ which was inadvertently undone by the 2002-09-30 patch.
+ * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
+ the same width as int.
+
+2002-10-04 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.50.
+
+ * configure.ac (AC_INIT), NEWS: Increment version number.
+
+ * doc/bison.texinfo: Minor spelling, grammar, and white space
+ fixes.
+ (Symbols): Mention that any negative value returned from yylex
+ signifies end-of-input. Warn about negative chars. Mention
+ the portable Standard C character set.
+
+ The GNU coding standard says CFLAGS and YFLAGS are reserved
+ for the installer to set.
+ * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
+ * src/Makefile.am (AM_CFLAGS): Likewise.
+ (AM_YFLAGS): Renamed from YFLAGS.
+
+ Fix some MAX and MIN problems.
+ * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
+ * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
+ * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
+ * src/reader.c (reader): Use it.
+
+ * tests/regression.at (Braces parsing): Use grep, not fgrep, as
+ POSIX 1003.1-2001 has removed fgrep.
+
+2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
+
+ * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
+ interpreted as signed.
+ * lib/ebitset.c (ebitset_list): Fix bug.
+
+2002-10-01 Paul Eggert <eggert@twinsun.com>
+
+ More fixes for 64-bit hosts and large bitsets.
+
+ * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
+ abitset_size, abitset_list, abitset_list_reverse, abitset_list):
+ Use bitset_bindex, not int or unsigned int or size_t, to count bits.
+ * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
+ struct bitset_vtable.list, struct bitset_vtable.list_reverse,
+ bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
+ bitset_count_): Likewise.
+ * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
+ bitset_first, bitset_last): Likewise.
+ * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
+ bitset_stats_list_reverse, bitset_stats_size,
+ bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
+ Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+ bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+ bitsetv_reflexive_transitive_closure): Likewise.
+ * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
+ * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
+ Likewise.
+ * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
+ Likewise.
+
+ * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
+ Use size_t, not unsigned int, to count bytes.
+ * lib/abitset.h (abitset_bytes): Likewise.
+ * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
+ Likewise.
+ * lib/bitset.h (bitset_bytes): Likewise.
+ * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
+ * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc): Likewise.
+ * lib/ebitset.c (ebitset_bytes): Likewise.
+ * lib/ebitset.h (ebitset_bytes): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+ * lib/lbitset.h (lbitset_bytes): Likewise.
+
+ * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
+ abitset_subset_p, abitset_disjoint_p, abitset_and,
+ abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
+ abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
+ abitset_or_and, abitset_or_and_cmp):
+ Use bitset_windex instead of unsigned int.
+ * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
+ ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
+ ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
+ Likewise.
+ * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
+
+ * lib/bitset.c (bitset_print):
+ Use proper printf formats for widths of integer types.
+ * lib/bitset_stats.c (bitset_percent_histogram_print,
+ bitset_log_histogram_print, bitset_stats_print_1): Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+
+ * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
+ BITSET_SIZE_MAX): New macros.
+ (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
+ sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
+ to BITSET_WINDEX_MAX.
+
+ * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
+ bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
+ since we now return the bitset_bindex type (not int).
+
+ * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
+ when computing sizes.
+ * lib/ebitset.c (ebitset_elts_grow): Likewise.
+
+ * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
+ and avoid cast to unsigned.
+
+2002-09-30 Akim Demaille <akim@epita.fr>
+
+ * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+ * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
+ Updates from Michael Hayes.
+
+2002-09-30 Art Haas <ahaas@neosoft.com>
+
+ * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
+ invocations.
+ * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
+ defined.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Version 1.49c.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
+ (Because of AC_LIBSOURCE).
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Playing with Autoscan.
+
+ * configure.ac: Remove the old LIBOBJ tweaks.
+ (AC_REPLACE_FUNCS): Add strrchr and strtol.
+ * lib/strrchr.c: New.
+ * lib/strtol.c: New, from the Coreutils 4.5.1.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Playing with Autoscan.
+
+ * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
+ * lib/Makefile.am (libbison_a_SOURCES): No longer include
+ argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
+ * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
+ Coreutils 4.5.1.
+
+2002-09-24 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Stack Overflow): xref to Recursion.
+ (Frequently Asked Questions, Parser Stack Overflow): New.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ Playing with autoscan.
+
+ * src/reader.c (get_merge_function): Use xstrdup, not strdup.
+ * src/files.c (skeleton_find): Remove, unused.
+ * m4/memcmp.m4: New, from the Coreutils 4.5.1.
+ * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
+ * Makefile.am (AUTOMAKE_OPTIONS): Don't.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac: Require 2.54.
+ s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
+ s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
+ * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
+ Remove, provided by Autoconf macros.
+
+2002-09-12 Akim Demaille <akim@epita.fr>
+
+ * m4/prereq.m4: Update, from Coreutils 4.5.1.
+
+2002-09-12 Akim Demaille <akim@epita.fr>
+
+ * m4/prereq.m4: Update, from Fileutils 4.1.5.
+ * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
+ Reported by Martin Mokrejs.
+
+2002-09-10 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Associate a human readable string to each
+ token type.
+ * tests/regression.at (Invalid inputs): Adjust.
+
+2002-09-10 Gary V. Vaughan <gary@gnu.org>
+
+ * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
+ with an Autoconf-2.5x style configure.ac.
+
+2002-09-06 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Conditions): Make explicit that the GPL
+ exception applies only to yacc.c. This is a modification of a
+ patch originally suggested by Akim Demaille.
+
+2002-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_copyright): Move the GPL exception comment from
+ here to...
+ * data/yacc.c: here.
+
+ * data/lalr1.cc (struct yyltype): Don't define it, since we use
+ LocationType.
+ (b4_ltype): Default to yy::Location from location.hh.
+
+2002-09-04 Jim Meyering <jim@meyering.net>
+
+ * data/yacc.c: Guard the declaration of yytoknum also with
+ `#ifdef YYPRINT', so it is declared only when used.
+
+2002-09-04 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Rename as...
+ * configure.ac: this.
+ Bump to 1.49c.
+
+2002-09-04 Akim Demaille <akim@epita.fr>
+
+ * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
+ * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
+ translate maintainer only messages.
+
+2002-08-12 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.49b.
+
+ * Makefile.am (SUBDIRS): Remove intl.
+ (DISTCLEANFILES): Remove.
+ * NEWS: Mention that GNU M4 is now required. Clarify what is
+ meant by "larger grammars". Mention the pt_BR translation.
+ * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
+ (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
+ Bump version from 0.11.2 to 0.11.5.
+ (BISON_PREREQ_STAGE): Remove.
+ (AM_GNU_GETTEXT): Use external gettext.
+ (AC_OUTPUT): Remove intl/Makefile.
+
+ * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
+
+ * data/glr.c: Include string.h, for strlen.
+ (yyreportParseError): Use size_t for yysize.
+ (yy_yypstack): No longer nested inside yypstates, as nested
+ functions are not portable. Do not assume size_t is the
+ same width as int.
+ (yypstates): Do not assume that ptrdiff_t is the same width
+ as int, and similarly for yyposn and YYINDEX.
+
+ * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
+
+ * lib/Makefile.am (INCLUDES): Do not include from the intl
+ directory, which has been removed.
+ * src/Makefile.am (INCLUDES): Likewise.
+
+ * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
+ (bitsets_sources, additional_bitsets_sources, timevars_sources):
+ New vars.
+
+ * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
+ * tests/Makefile.am (EXTRA_DIST): Likewise.
+
+ * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
+ Do not assume that bitset_windex is the same width as unsigned.
+
+ * lib/abitset.c (abitset_unused_clear): Do not assume that
+ bitset_word is the same width as int.
+ * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
+ * lib/bitset.h (bitset_set, bitset_reset): Likewise.
+ * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
+ * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
+ * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
+
+ * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
+ portability to one's complement hosts!).
+ * lib/ebitset.c (ebitset_op1): Likewise.
+ * lib/lbitset.c (lbitset_op1): Likewise.
+
+ * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
+ * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+ lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
+ Sync with fileutils.
+ * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
+ lib/gettext.h: Sync with diffutils.
+
+ * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
+ lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
+
+ * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
+ PROTOTYPES to check for prototypes, and "defined __STDC__" to
+ check for void *.
+
+ * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
+ size_t; the old version tried to do this but casted improperly.
+ (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
+ (bitset_test): Now returns int, not unsigned long.
+
+ * lib/bitset_stats.c: Include "gettext.h".
+ (_): New macro.
+ (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
+ name locals "index", as it generates unnecessary warnings on some
+ hosts that have an "index" function.
+
+ * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
+ bitset_stats_read, bitset_stats_write): Wrap strings in _() if
+ they need translation.
+ * src/LR0.c (state_list_append, new_itemsets, get_state,
+ append_states, generate_states): Likewise.
+ * src/assoc.c (assoc_to_string): Likewise.
+ * src/closure.c (print_closure, set_firsts, closure): Likewise.
+ * src/gram.c (grammar_dump): Likewise.
+ * src/injections.c (injections_compute): Likewise.
+ * src/lalr.c (lookaheads_print): Likewise.
+ * src/relation.c (relation_transpose): Likewise.
+ * src/scan-gram.l: Likewise.
+ * src/tables.c (table_grow, pack_vector): Likewise.
+
+ * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
+ glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
+ * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
+ * m4/mbstate_t.m4: Sync with fileutils.
+ * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
+
+ * po/LINGUAS: Add pt_BR.
+ * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
+ src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
+ lib/timevar.c.
+ Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
+ manual recommends.
+ Similarly, use src/scan-gram.l instead of src/scan-gram.c.
+
+ * src/complain.c (strerror_r): Remove decl; not needed.
+ (strerror): Use same pattern as ../lib/error.c.
+
+ * src/files.c, src/files.h (compute_header_macro): Remove; unused.
+
+ * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
+
+ * src/main.c (main): Cast result of bindtextdomain and textdomain
+ to void, to avoid a GCC warning when --disable-nls is in effect.
+
+ * src/scan-gram.l: Use strings rather than escapes when possible,
+ to minimize the number of warnings from xgettext.
+ (handle_action_dollar, handle_action_at): Don't use isdigit,
+ as it mishandles negative chars and it may not work as expected
+ outside the C locale.
+
+ * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
+ this is a GCC extension and is not portable to other compilers.
+
+ * src/system.h (alloca): Use same pattern as ../lib/error.c.
+ Do not include <ctype.h>; no longer needed.
+ Do not include <malloc.h>; no longer needed (and generates
+ warnings on OpenBSD 3.0).
+
+ * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
+ it's not portable.
+
+ * tests/regression.at: Do not use 'cc -c input.c -o input';
+ Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
+
+ * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
+ exit status as failure, not just exit status 1. Sun C exits
+ with status 2 sometimes.
+
+ * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
+ Use it for the two large tests.
+
+2002-08-02 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflicts_output): Don't output rules never
+ reduced here, since anyway that computation doesn't work.
+ * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
+ (rule_useless_p, rule_never_reduced_p): New.
+ (grammar_rules_partial_print): Use a filter instead of a range.
+ Display the title only if needed.
+ (grammar_rules_print): Adjust.
+ (grammar_rules_never_reduced_report): New.
+ * src/tables.c (action_row): Move the computation of rules never
+ reduced to...
+ (token_actions): here.
+ * src/main.c (main): Make the parser before making the report, so
+ that rules never reduced are computed.
+ Call grammar_rules_never_reduced_report.
+ * src/print.c (print_results): Report rules never reduced.
+ * tests/conflicts.at, tests/reduce.at: Adjust.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ Instead of attaching lookaheads and duplicating the rules being
+ reduced by a state, attach the lookaheads to the reductions.
+
+ * src/state.h (state_t): Remove the `lookaheads',
+ `lookaheads_rule' member.
+ (reductions_t): Add a `lookaheads' member.
+ Use a regular array for the `rules'.
+ * src/state.c (reductions_new): Initialize the lookaheads member
+ to 0.
+ (state_rule_lookaheads_print): Adjust.
+ * src/state.h, src/state.c (state_reductions_find): New.
+ * src/conflicts.c (resolve_sr_conflict, set_conflicts)
+ (count_rr_conflicts): Adjust.
+ * src/lalr.c (LArule): Remove.
+ (add_lookback_edge): Adjust.
+ (state_lookaheads_count): New.
+ (states_lookaheads_initialize): Merge into...
+ (initialize_LA): this.
+ (lalr_free): Adjust.
+ * src/main.c (main): Don't free nullable and derives too early: it
+ is used by --verbose.
+ * src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
+ `rule_number_t**'.
+ (set_derives, free_derives): Rename as...
+ (derives_compute, derives_free): this.
+ Adjust all dependencies.
+ * src/nullable.c (set_nullable, free_nullable): Rename as...
+ (nullable_compute, nullable_free): these.
+ (rule_list_t): Store rule_t *, not rule_number_t.
+ * src/state.c (state_rule_lookaheads_print): Directly compare rule
+ pointers, instead of their numbers.
+ * src/main.c (main): Call nullable_free, and derives_free earlier,
+ as they were lo longer used.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ * lib/timevar.c (get_time): Include children time.
+ * src/lalr.h (LA, LArule): Don't export them: used with the
+ state_t.
+ * src/lalr.c (LA, LArule): Static.
+ * src/lalr.h, src/lalr.c (lalr_free): New.
+ * src/main.c (main): Call it.
+ * src/tables.c (pack_vector): Check whether loc is >= to the
+ table_size, not >.
+ (pack_tables): Don't free froms, tos, conflict_tos, and pos...
+ (tables_generate): do it, since that's also it which allocates
+ them.
+ Don't free LA and LArule, main does.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Separate parser tables computation and output.
+
+ * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
+ (conflict_list, conflict_list_cnt, table, check, table_ninf)
+ (yydefgoto, yydefact, high): Move to...
+ * src/tables.h, src/tables.c: here.
+ * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+ (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+ (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
+ (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
+ (ACTION_MIN, actrow, order, nentries, pos, conflrow)
+ (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
+ (action_row, save_row, token_actions, save_column, default_goto)
+ (goto_actions, sort_actions, matching_state, pack_vector)
+ (table_ninf_remap, pack_table, prepare_actions): Move to...
+ * src/tables.c: here.
+ * src/tables.h, src/tables.c(tables_generate, tables_free): New.
+ * src/output.c (token_actions, output_base, output_conflicts)
+ (output_check): Merge into...
+ (prepare_actions): this.
+ (actions_output): Rename as...
+ (user_actions_output): this.
+ * src/main.c (main): Call tables_generate and tables_free.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Steal GCC's --time-report support.
+
+ * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+ stolen/adjusted from GCC.
+ * m4/stage.m4: Remove time related checks.
+ * m4/timevar.m4: New.
+ * configure.in: Adjust.
+ * src/system.h: Adjust to using timevar.h.
+ * src/getargs.h, src/getargs.c: Support trace_time for
+ --trace=time.
+ * src/main.c (stage): Remove.
+ (main): Replace `stage' invocations with timevar calls.
+ * src/output.c: Insert pertinent timevar calls.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Let --trace have arguments.
+
+ * src/getargs.h (enum trace_e): New.
+ * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+ (long_options, short_options): --trace/-T takes an optional
+ argument.
+ Change all the uses of trace_flag to reflect the new flags.
+ * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+ Strengthen `stage' portability.
+
+ * m4/stage.m4 (BISON_PREREQ_STAGE): New.
+ * configure.in: Use it.
+ Don't check for malloc.h and sys/times.h.
+ * src/system.h: Include them when appropriate.
+ * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+ times and struct tms are available.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ In verbose parse error message, don't report `error' as an
+ expected token.
+ * tests/actions.at (Printers and Destructors): Adjust.
+ * tests/calc.at (Calculator $1): Adjust.
+ * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+ error message, do not report the parser accepts the error token in
+ that state.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Normalize conflict related messages.
+
+ * src/complain.h, src/complain.c (warn, complain): New.
+ * src/conflicts.c (conflicts_print): Use them.
+ (conflict_report_yacc): New, extracted from...
+ (conflicts_print): here.
+ * tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Report rules which are never reduced by the parser: those hidden
+ by conflicts.
+
+ * src/LR0.c (save_reductions): Don't make the final state too
+ different: save its reduction (accept) instead of having a state
+ without any action (no shift or goto, no reduce).
+ Note: the final state is now a ``regular'' state, i.e., the
+ parsers now contain `reduce 0' as default reduction.
+ Nevertheless, since they decide to `accept' when yystate =
+ final_state, they still will not reduce rule 0.
+ * src/print.c (print_actions, print_reduction): Adjust.
+ * src/output.c (action_row): Track reduced rules.
+ (token_actions): Report rules never reduced.
+ * tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ `stage' was accidently included in a previous patch.
+ Initiate its autoconfiscation.
+
+ * configure.in: Look for malloc.h and sys/times.h.
+ * src/main.c (stage): Adjust.
+ Report only when trace_flag.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+ state_number_t.
+ (errs_t): symbol_t*, not symbol_number_t.
+ (reductions_t): rule_t*, not rule_number_t.
+ (FOR_EACH_SHIFT): New.
+ * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+ * src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+ * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+ (endtoken, accept): these.
+ * src/reader.c (reader): Set endtoken's default tag to "$end".
+ Set undeftoken's tag to "$undefined" instead of "$undefined.".
+ * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+ Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar): When the language is empty,
+ complain about the start symbol, not the axiom.
+ Use its location.
+ * tests/reduce.at (Empty Language): New.
+
+2002-07-26 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (gram_error): ... can't get
+ yycontrol without making too strong assumptions on the parser
+ itself.
+ * src/output.c (prepare_tokens): Use the real 0th value of
+ token_translations instead of `0'.
+ * src/parse-gram.y (yyerror): Don't rely on yycontrol being
+ visible here.
+ * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+ for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+ * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ Stop storing rules from 1 to nrules + 1.
+
+ * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+ * src/nullable.c, src/output.c, src/print.c, src/reader.c
+ * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+ Iterate from 0 to nrules.
+ Use rule_number_as_item_number and item_number_as_rule_number.
+ Adjust to `derive' now containing possibly 0.
+ * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+ Handle the `- 1' part in rule numbers from/to item numbers.
+ * src/conflicts.c (log_resolution): Fix the message which reversed
+ shift and reduce.
+ * src/output.c (action_row): Initialize default_rule to -1.
+ (token_actions): Adjust.
+ * tests/sets.at (Nullable, Firsts): Fix the previously bogus
+ expected output.
+ * tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+ (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+ (b4_c_knr_arg_decl): New.
+ * data/yacc.c: Use it to define yysymprint, yydestruct, and
+ yyreport_parse_error.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (yyreport_parse_error): New, extracted from...
+ (yyparse): here.
+ (yydestruct, yysymprint): Move above yyparse.
+ Be K&R compliant.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+ replace...
+ (b4_sint_type, b4_uint_type): these.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (TIEM_NUMBER_MAX): New.
+ (item_number_of_rule_number, rule_number_of_item_number): Rename
+ as...
+ (rule_number_as_item_number, item_number_as_rule_number): these.
+ Adjust dependencies.
+ * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+ (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+ (symbol_number_to_vector_number): New.
+ (order): Of vector_number_t* type.
+ (base_t, BASE_MAX, BASE_MIN): New.
+ (froms, tos, width, pos, check): Of base_t type.
+ (action_number_t, ACTION_MIN, ACTION_MAX): New.
+ (actrow): Of action_number_t type.
+ (conflrow): Of unsigned int type.
+ (table_ninf, base_ninf): New.
+ (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+ (muscle_insert_int_table, muscle_insert_base_table)
+ (muscle_insert_rule_number_table): New.
+ (prepare_tokens): Output `toknum' as int_table.
+ (action_row): Returns a rule_number_t.
+ Use ACTION_MIN, not SHRT_MIN.
+ (token_actions): yydefact is rule_number_t*.
+ (table_ninf_remap): New.
+ (pack_table): Use it for `base' and `table'.
+ * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+ replaced with...
+ (YYPACT_NINF, YYTABLE_NINF): these.
+ (yypact, yytable): Compute their types instead of hard-coded
+ `short'.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16 Akim Demaille <akim@epita.fr>
+
+ * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+ Adjust all former `associativity' dependencies.
+ * src/symtab.c (symbol_new): Default associativity is `undef', not
+ `right'.
+ (symbol_check_alias_consistence): Adjust.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Properly set the ``header'' part.
+ Use @dircategory ``GNU programming tools'' as per Texinfo's
+ documentation.
+ Use @copying.
+
2002-07-09 Akim Demaille <akim@epita.fr>
* lib/quotearg.h: Protect against multiple inclusions.
Accumulated changelog for new GLR parsing features.
- * src/conflicts.c (count_total_conflicts): Change name to
+ * src/conflicts.c (count_total_conflicts): Change name to
conflicts_total_count.
* src/conflicts.h: Ditto.
* src/output.c (token_actions): Use the new name.
projects / bison.git / blobdiff