+2004-10-25 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (YYRHSLOC): Move its definition next to its uses.
+ Introduce another definition to address simple location arrays.
+ (yyGLRStack): New member: yyerror_range.
+ (yyrecoverSyntaxError, yyparse): Update it.
+ (yyrecoverSyntaxError): Use it when shifting the error token to
+ have an accurate range, equivalent to the one computed by both
+ yacc.c and lalr1.cc.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
+ that column numbers start at column 0, as per GNU Coding
+ Standards, the others tests, and the doc.
+ (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
+ Adjust to the above change (first column is 0).
+ And adjust the location of the "<error>", now covering the whole
+ line.
+
+2004-10-22 Akim Demaille <akim@epita.fr>
+ and Paul Eggert <eggert@cs.ucla.edu>
+
+ Remove some arbitrary limits on goto numbers and relations.
+ * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
+ initial values, since they're never used.
+ (set_goto_map): ngotos is now unsigned, so test for overflow
+ by seeing whether it wraps around to zero.
+ * src/lalr.h (goto_number): Now size_t, not short int.
+ (GOTO_NUMBER_MAXIMUM): Remove.
+ * src/relation.c (relation_print, traverse, relation_transpose):
+ Check for END_NODE rather than looking at sign.
+ * src/relation.h (END_NODE): New macro.
+ (relation_node): Now size_t, not short int.
+
+2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Language and Grammar): In example, "int" is a
+ keyword, not an identifier. Problem reported by Baron Schwartz in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
+
+2004-10-11 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_check_alias_consistency): Also check
+ type names, destructors, and printers.
+ Reported by Alexandre Duret-Lutz.
+ Recode the handling of associativity and precedence in terms
+ of symbol_precedence_set.
+ Accept no redeclaration at all, not even equal to the previous
+ value.
+ (redeclaration): New.
+ Use it to factor redeclaration complaints.
+ (symbol_make_alias): Don't set the type of the alias, let
+ symbol_check_alias_consistency do it as for other features.
+ * src/symtab.h (symbol): Add new member prec_location, and
+ type_location.
+ * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
+ * tests/input.at (Incompatible Aliases): New.
+
+2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ .cvsignore fixes to accommodate gnulib changes,
+ and the practice of naming build directories "_build".
+ * .cvsignore: Add "_*". Sort.
+ * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
+ * m4/.cvsignore: Add "*_gl.m4".
+
+2004-10-06 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (add_param): Fix the truncation of trailing
+ spaces.
+
+2004-10-05 Akim Demaille <akim@epita.fr>
+
+ In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
+ whether the reducion was empty or not. This leaves room to
+ improve the use of YYLLOC_DEFAULT in such a case.
+ lalr1.cc is still experimental, so changing this is acceptable.
+ And finally, there are probably not many users who changed the
+ handling of locations in GLR, so changing is admissible too.
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
+ empty reduction, set @$ to an empty location ending the previously
+ stacked symbol.
+ Adjust uses to make sure the code is triggered on empty
+ reductions.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
+ expected output: empty reductions have empty locations.
+
+2004-09-29 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Move towards a more standard C++ coding style
+ for templates: Class < T > -> Class<T>.
+
+2004-09-29 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Reinstall the former ctor, for sake of
+ compatibility, but warn it will be removed.
+ Move towards a more standard C++ coding style (i.e., type *var ->
+ type* var).
+
+2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/parse-gram.y (add_param): Rewrite to avoid strchr,
+ since it's less likely to work if NULs are involved in the future.
+
+2004-09-27 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
+
+2004-09-27 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_parse_param_decl_1): New.
+ (b4_parse_param_decl): Use it to have different names between attribute
+ and argument names.
+ (b4_cc_constructor_call): Likewise.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (add_param): Strip the leading and trailing
+ blanks from a formal argument declaration.
+ (YY_LOCATION_PRINT): New.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
+ after the location.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Table of Symbols): Sort.
+
+2004-09-21 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
+ the useless parentheses.
+ Suggested by Paul Eggert.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ Let the initial-action act on the look-ahead, and use it for the
+ "initial push" (corresponding to an hypothetical beginning-of-file).
+ And let lalr1.cc honor %initial-action.
+
+ * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
+ example.
+ * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
+ (Parser::Parser): Remove the ctor that used to initialize it.
+ (Parser::parse): Like in the other skeletons, issue the "starting
+ parse" message before any action.
+ Honor %initial-action.
+ Initialize the stacks with the lookahead.
+ * data/yacc.c: Let $$ and @$ in %initial-action designate the
+ look-ahead.
+ Push them in the stacks.
+ * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Initial Action Decl): New.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
+ clearer criterion to define it.
+ (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
+ When reducing on an empty RHS, use the latest stacked location as
+ location.
+ yylloc is not always available.
+ * data/glr.c: Likewise.
+ Also, honor initial-actions.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): New.
+ Define when we know YYLTYPE's structure, i.e., when the default
+ YYLLOC_DEFAULT is used.
+ * data/c.m4 (b4_yysymprint_generate): Use it.
+ * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
+ value of the result.
+ (error_start_): Replace with...
+ (error_range_): this location array.
+ This allows to replace code relying on the implementation of
+ locations by portable code.
+ * data/yacc.c (yylerrsp): Replace with...
+ (yyerror_range): this.
+ Every time a token is popped, update yyerror_range[0], to have an
+ accurate location for the error token.
+ * data/glr.c (YY_LOCATION_PRINT): New.
+ (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
+ deference a pointer.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
+ report the location in %printers.
+
+ * src/scan-skel.l: Instead of abort, report error messages to ease
+ understanding skeleton scanning failures.
+
+2004-09-16 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
+ (iterator, const_iterator): these, to be more in the C++ spirit.
+ Also, return reverse iterators so that when displaying the stack
+ we display its bottom first.
+ (Parser::stack_print_, Parser::reduce_print_): Match the messages
+ from yacc.c.
+ We should probably use vector here though.
+
+2004-09-16 Akim Demaille <akim@epita.fr>
+
+ Have more complete shift traces.
+
+ * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
+ to report Shifts instead of ad hoc YYDPRINTF invocations,
+ including for the error token.
+ * data/lalr1.cc (symprint_): Output the location.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
+ output the location within the %printer.
+ Activate GLR tests, at least to make sure they compile properly.
+ They still don't pass though.
+ * tests/calc.at: Adjust expect verbose output, since now "Entering
+ state..." is on a different line than the "Shifting" message.
+
+2004-09-08 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
+ Bison directive from the Bison file to the invocation of this
+ macro, so that these directives are passed to
+ AT_BISON_OPTION_PUSHDEFS to get correct help macros.
+ Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
+ Move the AT_SETUP/AT_CLEANUP outside, to report as test title
+ the extra Bison directives instead of the whole series.
+ Change the grammar so that there are recoverable errors, and
+ unrecoverable errors. Now we can have the parser give up before
+ consuming the whole input. As a result we now can observe that
+ the lookahead is freed when needed.
+ Change the parser source to parse argv[1] instead of a hard coded
+ string.
+ Simplify yylex, and give a value and location to EOF.
+ Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
+ passed directives already coded in the file.
+ Add some tests to check the location of "error".
+ For some tests, the C++ parser is correct, and not yacc.c.
+ For other tests, they provide different, but unsatisfying, values,
+ so keep the C++ value so that at least one parser is "correct"
+ according to the test suite.
+ (Actions after errors): Remove, this is subsumed by the
+ AT_CHECK_PRINTER_AND_DESTRUCTOR series.
+
+2004-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Adjust the indentation of the labels.
+ (Parser::pop): New.
+ Use it.
+
+2004-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
+ argument, an informative message.
+ Call YY_SYMBOL_PRINT.
+ Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
+ * data/lalr1.cc (destruct_): Likewise.
+ In addition, no longer depend on b4_yysymprint_generate and
+ b4_yydestruct_generate to generate these functions, do it "by
+ hand".
+
+2004-09-03 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
+ invoked, yydestruct the lookahead.
+ * tests/calc.at (Calculator $1): Update the expected lengths of
+ traces: there is an added line for the discarded lookahead.
+ * doc/bison.texinfo (Destructor Decl): Some rewording.
+ Define "discarded" symbols.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (translate_, destruct_): No reason to be static.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
+ (YYDSYMPRINTF): Rename as...
+ (YY_SYMBOL_PRINT): this.
+ * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
+ two.
+ Use it instead of direct symprint_ calls.
+ (yybackup): Tweak the "Now at end of input" case to match yacc.c's
+ one.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_yysymprint_generate): New.
+ (symprint_): New member function, defined when YYDEBUG.
+ Use it consistently instead of token/nterm debugging output by
+ hand.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
+ %printer calls to use cdebug_ when using lalr1.cc.
+
+2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * data/glr.c: Guard the declarations of yypstack and yypdumpstack
+ with #ifdef YYDEBUG.
+
+2004-08-26 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Implementing Loops): Rename as...
+ (Implementing Gotos/Loops): this.
+
+2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ Adjust to latest gnulib.
+ * bootstrap (gnulib_modules): Add xalloc-die.
+ Set LC_ALL=C so that file names sort consistently.
+ Prefer the gnulib copies of gettext.m4, glibc21.m4,
+ inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
+ uintmax_t.m4, ulonglong.m4.
+ (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
+ po.m4 since we are now using _gl.m4 instead.
+
+2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * src/scan-action.l: Remove. Scanning of semantic actions is
+ handled in scan-gram.l.
+
+2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
+
+ * src/location.h (struct): The file member is a uniqstr.
+ (equal_boundaries): Use UNIQSTR_EQ for comparison.
+
+2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix bug with non-%union parsers that have printers or destructors,
+ which led to a Bison core dump. Reported by Peter Fales in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
+
+ * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
+ * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
+ not to our own type.
+ * src/output.c (symbol_destructors_output, symbol_printers_output):
+ Don't assume %union.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
+ AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
+ UNION-FLAG. All callers changed.
+ (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
+ Use type char, not unsigned int, when declaring an array of char;
+ this lets us remove a cast.
+ (Printers and Destructors): Add non-%union test cases.
+
+2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo: Minor editorial changes, mostly to the new
+ GLR writeups. E.g., avoid frenchspacing and the future tense,
+ change "lookahead" to "look-ahead", and change "wrt" to "with
+ respect to".
+
+2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
+ New sections, split off from the GLR Parsers section. Put the new
+ Simple GLR Parser near the start of the GLR section, for clarity.
+ Rewrite connective text.
+
+2004-06-21 Frank Heckenbach <frank@g-n-u.de>
+
+ * doc/bison.texinfo (Simple GLR Parsers): New section.
+
+2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS, TODO, doc/bison.texinfo:
+ Use "look-ahead" instead of "lookahead", to be consistent.
+ * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
+ while we're fixing "look-ahead".
+ * src/conflicts.c (shift_set): Renamed from shiftset.
+ (look_ahead_set): Renamed from lookaheadset.
+ * src/print.c: Likewise.
+ * src/getargs.c (report_args): Add "look-ahead" as the new canonical
+ name for "lookahead".
+ (report_types, usage): Likewise.
+ * src/getargs.h (report_look_ahead_tokens): Renamed from
+ report_lookaheads.
+ * src/lalr.c (compute_look_ahead_tokens): Renamed from
+ compute_lookaheads.
+ (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
+ (look_ahead_tokens_print): Renamed from lookaheads_print.
+ * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
+ state_rule_lookaheads_print.
+ * src/state.h: Likewise.
+ (reductions.look_ahead_tokens): Renamed from lookaheads.
+ * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
+ AT_DATA_LOOKAHEADS_GRAMMAR.
+
+2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README: Update location of patched M4 distribution.
+
+2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
+
+ Don't assume the C++ compiler takes the same arguments as the C compiler
+ (trivial change).
+ * configure.ac (O0CXXFLAGS): New var.
+ * tests/atlocal.in (CXXFLAGS): Use it.
+
+2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some "make check" problems with C++ reported by
+ Albert Chin-A-Young for Tru64 C++ in this thread:
+ http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
+
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Output to a .cc file for C++, not to a .c file.
+ * tests/calc.at (AT_CHECK_CALC): Likewise.
+ * tests/regression.at (AT_CHECK_DANCER): Likewise.
+ * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
+
+2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * tests/calc.at, tests/actions.at: Workaround for SGI
+ C++ compiler. (trivial change)
+
+2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ Spent a few hours checking out which prerequisite versions the
+ current sources actually require. I went all the way back to
+ Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
+ a seemingly endless set of combinations of versions more recent
+ than that. The bottom line is that the current sources require
+ fairly recent versions of the build tools, and it'll be some work
+ to change this.
+ * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
+ (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
+ (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
+ Add comments explaining why those particular versions are
+ currently needed.
+
+ * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
+ in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
+ <http://mail.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
+
+ * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
+ (it fails with a Autoconf-without-aclocal-m4 diagnostic).
+
+2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
+ 0.11.5. Suggested by Bruno Haible.
+ * bootstrap: Remove gettext version checking.
+
+ * doc/bison.texinfo (Decl Summary): Also mention that %union
+ can depend on prerequisite types. Problem reported by Tim
+ Van Holder.
+
+2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README: Mention GNU m4 1.4 bugs and Akim's patched version.
+ * README-alpha: Don't tell people not to package this.
+
+ * bootstrap: Don't assume $(...) works; use `...` instead.
+ Problem reported by Paul Hilfinger. Also, diagnose non-GNU
+ gettext better.
+
+ * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
+ put into the -d output file, and mention what to do if YYSTYPE is
+ defined as a macro.
+
+2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo change made earlier today: it caused autopoint to not bring
+ in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
+ autopoint's.
+
+ * bootstrap: Check that gettext version matches what's in
+ configure.ac. Warn users to ignore robots.txt ERROR 404.
+ * bootstrap: Undo today's earlier change (logged below).
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
+
+ The gettext version checking is causing more trouble than it's
+ curing; remove it. Problem reported by Paul Hilfinger.
+
+ * bootstrap: Issue a warning that one can expect a message
+ 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
+
+2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ Ensure that the C++ compiler used for testing actually works on a
+ simple test program; if not, skip the C++-related tests. Problem
+ reported by Vin Shelton in:
+ http://mail.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
+
+ * m4/cxx.m4: New file.
+ * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
+ * tests/atlocal.in (BISON_CXX_WORKS): Add.
+ * tests/local.at (AT_COMPILE_CXX): Use it.
+
+2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yylloc): Output this macro even if locations are not
+ being generated, as the GLR parser needs it even in that case.
+ Problem reported by Troy A. Johnson
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
+
+ * configure.ac (AC_INIT): Update to 1.875e.
+
+2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 1.875d.
+ * configure.ac (AC_INIT): Likewise.
+ * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
+
+ * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
+ -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
+ lalr1.cc runs afoul of the first, and the last two are no longer
+ supported by GCC 3.4.0.
+ * README: Mention GNU m4 1.4 or later; mention m4 patches.
+ * HACKING: Use ./bootstrap, not "make update" to import foreign files.
+
+2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
+ unsigned int, for compatibility with latest gnulib hash module.
+ * src/state.c (state_hash, state_hasher): Likewise.
+ * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
+ * src/uniqstr.c (hash_uniqstr): Likewise.
+
+2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Unescaped newlines are no longer allowed in char & strings.
+
+ * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
+ SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
+ character and string literals.
+ (unexpected_end): New function.
+ (unexpected_eof): Use it.
+ (unexpected_newline): New function.
+ (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
+ actions.
+
+ * NEWS: Document %expect-rr.
+
+ * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
+ Fix typo by replacing $1 with $option.
+ Remove more 'intl'-related files.
+ Don't DEFUN AM_INTL_SUBDIR twice.
+
+ * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
+ memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
+ strtoul.c.
+ * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
+ hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
+ xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
+ inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
+ stdint_h.m4, uintmax_t.m4, ulonglong.m4.
+ * src/.cvsignore: Add *.output.
+
+ * src/parse-gram.y: Put copyright notice inside %{ %} so it
+ gets copied to the output file.
+
+2004-04-28 Paul Eggert <eggert@twinsun.com>
+
+ Get files from the gnulib and po repositories, instead of relying
+ on them being in our CVS. Upgrade to latest versions of gnulib
+ and Automake.
+
+ * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
+ * bootstrap: Bootstrap from gnulib and po repositories.
+ Much of this code was stolen from GNU diff and GNU tar's bootstrap.
+ * README-cvs: Document these changes. Remove version numbers from
+ mentions of build tools, since they change so often. Mention Flex.
+
+ * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
+ (gl_USE_SYSTEM_EXTENSIONS): Add.
+ (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
+ Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
+ does this for us.
+ (AC_ISC_POSIX): Remove; we no longer support this
+ ancient OS, as it gets in the way of latest Autoconf & gnulib.
+ (AC_HEADER_STDC): Remove: we now assume C89 or better.
+ (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
+ Do not check for C89 headers, except for locale.h which is used
+ by the Yacc library and must port to K&R hosts.
+ (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
+ Do not check for C89 functions, except for setlocale which is
+ used by the Yacc library.
+ (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
+ (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
+ gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
+ gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
+ gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
+ AM_GNU_GETTEXT): Remove; now done by:
+ (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
+ (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
+ for us.
+
+ * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
+ (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
+ Define to empty, as gnulib.mk will do the rest for us.
+ ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
+ for us.
+ (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
+ (lib_SOURCES): New symbol, containing only the non-gnulib libs.
+
+ * src/files.c: Include gnulib's xstrndup.h.
+
+ * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
+ (REALLOC): Use xnrealloc, for likewise.
+ (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
+ (strnlen, memrchr): Remove decls; functions no longer used.
+ Include <stpcpy.h>.
+
+ * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
+ lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+ lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
+ lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
+ lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
+ lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
+ lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
+ lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
+ lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
+ lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
+ lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
+ m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+ m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
+ m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
+ m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
+ m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
+ m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
+ m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
+ po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
+ po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
+ po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
+ Remove, as these files are now generated automatically
+ by bootstrap or automake.
+
+ * po/ChangeLog: Remove: all but one entry was a duplicate
+ of this file, and I moved that 2000-11-02 entry here.
+
+ * config/.cvsignore: Add Makefile, depcomp, install-sh.
+ * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
+ argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
+ exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
+ getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
+ hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
+ memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
+ quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
+ strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
+ strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
+ unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
+ xstrndup.h.
+ * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
+ dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
+ mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
+ stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
+ * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
+ * src/.cvsignore: Remove *_.c.
+
+
+ * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
+ support it. (The latest stable gzip doesn't.)
+
+2004-04-27 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
+ case, as stos_ is now used by destructors due to the 2004-02-09
+ change.
+
+ Remove more K&R C support.
+ * lib/libiberty.y (PARAMS): Remove. All uses removed.
+ * lib/subpipe.c (errno): Remove decl.
+ Include <stdlib.h> unconditionally.
+ (EXIT_FAILURE): Remove macro.
+ * src/complain.c (vfprintf, strerror): Remove.
+ * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
+ unconditionally.
+ (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
+ Use latest Autoconf recommendations for including inttypes.h, stdint.h.
+ (strchr, strspn, memchr): Remove decls.
+ * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
+ unconditionally. Do not declare perror.
+ * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
+ unconditionally.
+
+ * src/complain.c (_): Remove useless defn, as system.h defines this.
+
+ * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
+ with latest obstack.h.
+ * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
+ to procedure types, as obstack.h now does that for us.
+ * lib/lbitset.c (lbitset_elt_alloc): Likewise.
+
+ * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
+ so that this include file can stand alone.
+ * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
+ does this now. Include subpipe.h first after config.h, to
+ test whether it can stand alone.
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
+ declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
+ unused declaration.
+
+ * tests/synclines.at (%union synch line): Put a dummy member in
+ the union, because empty unions aren't allowed in C. Caught
+ by GCC 3.4.0.
+
+2004-04-13 Jim Meyering <jim@meyering.net>
+
+ * src/conflicts.c (conflicts_print): Correct format string typo:
+ use `%%' to produce literal `%'. (trivial change)
+
+2004-03-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/getargs.c (version): Update copyright year to 2004.
+
+ * data/c.m4 (b4_int_type): Use 'short int' rather than
+ 'short', and similarly for 'long', 'unsigned', etc.
+ * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
+ yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
+ yy_yypstack, yydumpstack): Likewise.
+ * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
+ translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
+ Likewise.
+ * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
+ yy_stack_print, yyparse): Likewise.
+ * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
+ * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
+ * lib/bitset.c (bitset_print): Likewise.
+ * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_dump): Likewise.
+ * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
+ * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
+ Likewise.
+ * src/LR0.c (allocate_itemsets): Likewise.
+ * src/gram.h (rule_number, rule): Likewise.
+ * src/lalr.h (goto_number): Likewise.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/output.c (prepare_rules): Likewise.
+ * src/relation.c (relation_print, relation_digraph): Likewise.
+ * src/relation.h (relation_node): Likewise.
+ * src/state.h (state_number, transitions, errs, reductions,
+ struct state): Likewise.
+ * src/symtab.h (symbol_number, struct symbol): Likewise.
+ * src/tables.c (vector_number, tally, action_number,
+ default_goto, goto_actions): Likewise.
+ * tests/existing.at (GNU Cim Grammar): Likewise.
+ * tests/regression.at (Web2c Actions): Likewise.
+
+ * src/output.c (muscle_insert_short_int_table): Renamed from
+ muscle_insert_short_table. All uses changed.
+
+2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * src/parse-gram.y: Define PERCENT_EXPECT_RR.
+ (declaration): Replace expected_conflicts with expected_sr_conflicts.
+ Add %expect-rr rule.
+
+ * src/scan-gram.l: Recognize %expect-rr.
+
+ * src/conflicts.h (expected_sr_conflicts): Rename from
+ expected_conflicts.
+ (expected_rr_conflicts): Declare.
+
+ * src/conflicts.c (expected_sr_conflicts): Rename from
+ expected_conflicts.
+ (expected_rr_conflicts): Define.
+ (conflicts_print): Check r/r conflicts against expected_rr_conflicts
+ for GLR parsers.
+ Use expected_sr_conflicts in place of expected_conflicts.
+ Warn if expected_rr_conflicts used in non-GLR parser.
+
+ * doc/bison.texinfo: Add documentation for %expect-rr.
+
+2004-03-08 Paul Eggert <eggert@gnu.org>
+
+ Add support for hex token numbers. Suggested by Odd Arild Olsen in
+ <http://mail.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
+
+ * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
+ in lalr1.cc.
+ * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
+ * src/scan-gram.l (scan_integer): New function.
+ ({int}): Use it.
+ (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
+ handle_action_dollar, handle_action_at, convert_ucn_to_byte):
+ Say "long int", not "long", for uniformity with GNU style.
+
+2004-02-25 Paul Eggert <eggert@twinsun.com>
+
+ * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
+ compilers. This fixes a problem with Intel's C++ compiler being
+ chatty, reported by Guido Trentalancia in
+ <http://mail.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
+
+2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
+
+ Support %destructor and merge error locations in lalr1.cc.
+
+ * data/lalr1.cc (b4_cxx_destruct_def): New macro.
+ (Parser::stos_): Define unconditionally.
+ (Parser::destruct_): New method. Generate its body with
+ b4_yydestruct_generate.
+ (Parser::error_start_): New attribute.
+ (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
+ token which are discarded.
+ (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
+ error_start_ when erroneous token are discarded.
+ (Parser::parse) <yyerrlab1>: Compute the location of the error
+ token so that it covers all the discarded tokens.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
+ it can be called with `%skeleton "lalr1.cc"', and do that.
+
+2004-02-02 Paul Eggert <eggert@twinsun.com>
+
+ * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
+ $(top_srcdir)/lib and ../lib. This fixes a bug reported
+ by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
+ There's no need to mention top_builddir since Automake does that
+ for us.
+ (INCLUDES): Remove, as Automake says it's obsolescent.
+ Contents migrated into AM_CPPFLAGS as described above.
+ * lib/Makefile.am (INCLUDES): Remove; obsolescent.
+
+2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
+ (yyreportSyntaxError): Handle case where lookahead token is
+ YYEMPTY.
+
+2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
+ resulting parsers are compilable with C++.
+
+2003-12-23 Paul Eggert <eggert@twinsun.com>
+
+ * config/depcomp, config/install-sh: Sync with Automake 1.8.
+ * src/output.c (output_skeleton): Rename local var.
+ * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
+ Bison tokens, as this runs afoul of the 2003-10-07 change that
+ disallowed NUL bytes in character constants or string literals.
+
+ * tests/local.at: Require Autoconf 2.59's Autotest.
+ * tests/testsuite.at: Don't include local.at, since we now assume
+ Autoconf 2.59 or later. Autoconf 2.59 had some problems with
+ including it.
+ * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
+ multiple inclusion warnings.
+
+2003-12-02 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (How Can I Reset the Parser): More about start
+ conditions.
+ From Bruno Haible.
+
+2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
+
+ * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
+
+2003-10-07 Paul Eggert <eggert@twinsun.com>
+
+ * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
+ if testsuite doesn't exist.
+
+ * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
+ literals, unfortunately.
+ * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
+ Complain about NUL bytes in character constants or string literals.
+
+2003-10-05 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS: Don't document %no-default-prec, as it's still
+ too experimental.
+ * doc/bison.texinfo: Document %no-default-prec only if
+ the defaultprec flag is set. Normally it's not.
+
+2003-10-04 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
+ non-modifiable lvalue, instead of a modifiable one.
+ * doc/bison.texinfo (Actions): Document that $$ can
+ be assigned to. Do not claim that $$ and $N are
+ array element references: user code should not rely on this.
+
+2003-10-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
+ (grammar_declaration): Use it.
+ * src/scan-gram.l: New token %no-default-prec.
+ * tests/conflicts.at: Revamp tests to use %no-default-prec.
+ * NEWS, doc/bison.texinfo: Document the above.
+
+2003-10-01 Akim Demaille <akim@epita.fr>
+
+ VCG no longer supports long_straight_phase.
+
+ * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
+ * src/print_graph.c (print_graph): Adjust.
+
+2003-09-30 Frank Heckenbach <frank@g-n-u.de>
+ and Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Decl Summary, Contextual Precedence,
+ Table of Symbols): Document %default-prec.
+ * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
+ (grammar_declaration): Set default_prec on %default-prec.
+ * src/scan-gram.l (%default-prec): New token.
+ * src/reader.h (default_prec): New flag.
+ * src/reader.c: Likewise.
+ (packgram): Handle it.
+ * tests/conflicts.at (%default-prec without %prec,
+ %default-prec with %prec, %default-prec 1): New tests.
+
+2003-09-30 Paul Eggert <eggert@twinsun.com>
+
+ * tests/testsuite.at: Include local.at, not input.at, fixing
+ a typo in the 2003-08-25 patch.
+
+2003-08-27 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
+ GCC warnings.
+
+2003-08-26 Akim Demaille <akim@epita.fr>
+
+ * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
+ "<\#" to avoid magic from Gnus when posting parts of this script.
+
+2003-08-26 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
+ (Parser::parse): here.
+ Adjust: nerrs and errstatus is now replaced by...
+ (Parser::nerrs_, Parser::errstatus_): New.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * config/announce-gen, Makefile.cfg: New.
+ * Makefile.am: Adjust.
+ * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
+ keeping local WGET and WGETFLAGS modifications from Paul Eggert.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ When reducing initial empty rules, Bison parser read an initial
+ location that is not defined. This results in garbage, and that
+ affects Bison's own parser. Therefore we need (i) to extend Bison
+ to support a means to initialize this location, and (ii) to use
+ this CVS Bison to fix CVS Bison's parser.
+
+ * src/reader.h, reader.c (epilogue_augment): Remove, replace
+ with...
+ * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
+ * src/parse-gram.y: Adjust.
+ (%initial-action): New.
+ (%error-verbose): Since we require CVS Bison, there is no reason
+ not to use it.
+ * src/scan-gram.l: Adjust.
+ * src/Makefile.am (YACC): New, to make sure we use our own parser.
+ * data/yacc.c (yyparse): Use b4_initial_action.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Don't promote stdout for error messages.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
+ From Alexandre Duret-Lutz.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Version 1.875c.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
+ Use them.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::reduce_print_): New.
+ Use it.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
+ error recovery loops. This patch is based on
+ <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
+ Also, augment the similarity between lalr1.cc and yacc.c.
+ Note: the locations of error recovery rules are not correct yet.
+
+ * data/lalr1.cc: Comment changes to augment the similarity between
+ lalr1.cc and yacc.c.
+ (YYERROR): Goto to yyerrorlab, not yyerrlab1.
+ (yyerrlab1): Remove, but where it used to be (now the bottom part of
+ yyerrlab), when hitting EOF, pop the whole stack here instead of
+ merely falling thru the default error handling mechanism.
+ (yyerrorlab): New label, with the old contents of YYERROR,
+ plus the following change: pop the stack of rhs corresponding
+ to the production that invoked YYERROR. That is how Yacc
+ behaves (required by POSIX).
+ * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
+ fail.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Tune local.at so that people can "autom4te -l autotest calc.at -o
+ calc" for instance, to extract a sub test suite.
+
+ * tests/testsuite.at: Move the initialization, Autotest version
+ requirement, and AT_TESTED invocation into...
+ * tests/local.at: here.
+ * tests/testsuite.at: Include it for compatibility with Autoconf
+ 2.57.
+ * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
+ be ignore.
+
+2003-08-04 Paul Eggert <eggert@twinsun.com>
+
+ Rework code slightly to avoid gcc -Wtraditional warnings.
+ * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
+ The returned value is now stored in *YY0. All callers changed.
+ * src/output.c (merge_output): Adjust to the above change.
+
+2003-07-26 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYASSERT): New macro.
+ (yyfillin, yydoAction, yyglrReduce, yysplitStack,
+ yyresolveStates, yyprocessOneStack):
+ Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
+ Derived from a suggestion by Frank Heckenbach.
+
+2003-07-25 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
+ for portability to K&R C (after ansi2knr, presumably). See
+ <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
+ by Frank Heckenbach, though I have omitted the structure-initialization
+ part of his glr-knr.diff patch since I recall that the Portable
+ C Compiler didn't require that change.
+
+ Let the user specify how to allocate and free memory.
+ Derived from a suggestion by Frank Heckenbach in
+ <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
+ * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
+ All uses of free, malloc, realloc changed to use these macros,
+ and unnecessary casts removed.
+ * data/yacc.c (YYFREE, YYMALLOC): Likewise.
+
+2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
+
+ * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
+ use s.empty() rather than s == "" to test for empty string; see
+ <http://mail.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
+ (trivial change)
+
+2003-06-25 Akim Demaille <akim@epita.fr>
+
+ * config/depcomp, config/install-sh: Update from masters.
+
+2003-06-20 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
+ and return properly parenthesized result.
+ * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
+ * data/yacc.c (YYLLOC_DEFAULT): Likewise.
+ Remove unnecessary parentheses from uses.
+ * doc/bison.texinfo (Location Default Action): Describe the
+ conventions for parentheses.
+
+2003-06-19 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
+ yyreportTree): Do not assume that size_t is the same width as int,
+ when printing sizes. Print sizes using an unsigned format.
+ Problem reported by Frank Heckenbach in
+ <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
+
+ Port to Forte Developer 7 C compiler.
+ * data/glr.c (struct YYLTYPE): If locations are not being used,
+ declare a single dummy member, as empty structs do not conform
+ to the C standard.
+ (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
+ the Forte Developer 7 C compiler complains that end-of-loop
+ code is not reached.
+
+2003-06-17 Paul Eggert <eggert@twinsun.com>
+
+ * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
+ avoid warnings from picky compilers about redefinition of PARAMS.
+
+2003-06-17 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.875b.
+
+ * NEWS: Document 1.875b.
+
+ * lib/bbitset.h: Do not include config.h; that's the includer's job.
+ Do not include <sys/types.h>; shouldn't be needed on a C89 host.
+ * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
+ Don't use 'index' in comments, as it's a builtin fn on some hosts.
+ * lib/bitset_stats.c: Include gettext.h unconditionally, as
+ per recent gettext manual's suggestion.
+ * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
+ Use prototypes, not old-style definitions.
+ * lib/lbitset.c (lbitset_unused_clear): Likewise.
+ * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
+ vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
+ vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
+ vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
+ vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
+ vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
+ vbitset_or_and_cmp, vbitset_copy): Likewise.
+
+ * lib/libiberty.h: Do not include config.h; that's the includer's job.
+ Do not include <stdlib.h>.
+ (PARAMS): Define unconditionally for C89.
+ (ATTRIBUTE_NORETURN): Remove.
+ (ATTRIBUTE_UNUSED): Define unconditionally.
+
+ Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
+ <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
+ * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
+ * lib/vbitset.c, lib/vbitset.h: New files.
+ * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+ lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
+ from libbitset.
+
+ * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
+ `How Can I Reset @code{yyparse}', since texinfo does not allow
+ arbitrary @ in node names.
+
+ * m4/Makefile.am (EXTRA_DIST): Add the following files, which
+ shouldn't be needed according to the gettext 0.12.1 documentation
+ but which seem to be needed anyway: codeset.m4 glibc21.m4
+ intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
+ lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
+ * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
+
+ * lib/.cvsignore: Add stdbool.h.
+ * m4/.cvsignore: Add nls.m4, po.m4.
+
+ Upgrade to CVS gnulib.
+ * stdbool_.h: File renamed from stdbool.h.in.
+ * configure.ac (AM_STDBOOL_H): Invoke this instead of
+ AC_HEADER_STDBOOL.
+ (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
+ (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
+ * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
+ (MOSTLYCLEANFILES): New var.
+ ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
+ (stdbool.h): New rule.
+ * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
+ lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
+ lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
+ m4/quote.m4: Upgrade to today's gnulib.
+
+ * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
+ (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
+ the tests right now.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
+ yyerror are declared before use; C99 requires this.
+
+2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
+ first.
+ (yyrecoverSyntaxError): Correct the logic for setting and testing
+ yyerrState.
+ Correct comment on handling EOF.
+ Allow states with only a default reduction, rather than failing
+ (I can't quite reconstruct why these were not allowed before).
+
+ Fixes to avoid problem that $-N rules in GLR parsers can cause
+ buffer overruns, corrupting state.
+
+ * src/output.c (prepare_rules): Output max_left_semantic_context
+ definition.
+ * src/reader.h (max_left_semantic_context): New variable declaration.
+ * src/scan-gram.l (max_left_semantic_context): Define.
+ (handle_action_dollar): Update max_left_semantic_context.
+ * data/glr.c (YYMAXLEFT): New definition.
+ (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
+ (yyresolveAction): Ditto.
+
+ Fixes to problems with location handling in GLR parsers reported by
+ Frank Heckenbach (2003/06/05).
+
+ * data/glr.c (YYLTYPE): Make trivial if locations not used.
+ (YYRHSLOC): Add parentheses, and define only if locations used.
+ (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
+ locations not used.
+ (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
+ (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
+
+ * tests/cxx-type.at: Exercise location information; update tests
+ to differentiate output with and without locations.
+ Remove forward declarations of yylex and yyerror---caused errors
+ because default YYLTYPE not yet defined.
+ Change semantic actions to compute strings, rather than printing
+ them directly (to test proper passing of semantics values). Change
+ output to prefix notation and update test data and expected results.
+ (yylex): Track locations.
+ (stmtMerge): Return value rather than printing, and include arguments
+ in value.
+
+2003-06-03 Paul Eggert <eggert@twinsun.com>
+
+ Avoid warnings generated by GCC 2.95.4 when Bison is
+ configured with --enable-gcc-warnings.
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
+ yy::]b4_parser_class_name[::translate_,
+ yy::Stack::operator[] (unsigned),
+ yy::Stack::operator[] (unsigned) const,
+ yy::Slice::operator[] (unsigned),
+ yy::Slice::operator[] (unsigned) const):
+ Rename local vars to avoid warnings.
+ * tests/glr-regression.at (Improper handling of embedded actions
+ and $-N in GLR parsers): Remove unused local variable from yylex.
+ * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
+ (void) as arg when not pure, since we now assume C89 when building
+ Bison. Pacify GCC by using parameter.
+
+2003-06-02 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
+ yy::Location::lines, yy::Location::columns): Rename arguments
+ to avoid shadowing; this removes a warning generated by GCC 3.3.
+
+2003-06-01 Paul Eggert <eggert@twinsun.com>
+
+ Don't pass C-only warning optins (e.g., -Wmissing-declarations)
+ to g++, as GCC 3.3 complains if you do it.
+ * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
+ everything that WARNING_CFLAGS has, except omit warnings
+ not suitable for C++.
+ (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
+ * tests/atlocal.in (CXXFLAGS): New var.
+ * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
+
+ Fix a GLR parser bug I reported in February; see
+ <http://mail.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
+ The problem was that GLR parsers did not conform to the C standard,
+ because actions like { $1 = $2 + $3; } expanded to expressions
+ that invoked YYFILL in separate subexpressions, and YYFILL assigned
+ to a local variable. The C standard says that expressions
+ like (var = f ()) + (var = f ()) have undefined behavior.
+ Another problem was that GCC sometimes issues warnings that
+ yyfill and its parameters are unused.
+
+ * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
+ as possibly unused.
+ (yyfill): New function.
+ (YYFILL): Use it.
+ (yyuserAction): Change type of yynormal to bool, so that it matches
+ the new yyfill signature. Mark it as possibly unused.
+
+
+ Follow up on a bug I reported in February, where a Bison-generated
+ parser can loop. Provide a test case and a fix for yacc.c. I
+ don't have a fix for lalr1.cc or for glr.c, unfortunately.
+ The original bug report is in:
+ <http://mail.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
+
+ * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
+ macro's size was becoming unwieldy.
+ (yyerrlab): Do not discard an empty lookahead symbol, as this
+ might destroy garbage.
+ (yyerrorlab): New label, with the old contents of YYERROR,
+ plus the following change: pop the stack of rhs corresponding
+ to the production that invoked YYERROR. That is how Yacc
+ behaves, and POSIX requires this behavior.
+ (yyerrlab1): Use YYPOPSTACK instead of its definiens.
+ * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
+ Define 'alarm' to do nothing if unistd.h is not available.
+ Add a new rule "exp: '-' error;" to test the above change to
+ data/yacc.c. Use 'alarm' to abort any test taking longer than
+ 10 seconds, as it's probably looping.
+ (AT_CHECK_CALC): Test recovery from error in new grammar rule.
+ Also, the new yacc.c generates two fewer diagnostics for an
+ existing test.
+
+2003-05-24 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
+ YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
+ This fixes a problem reported by John Bowman when the Compaq/HP
+ Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
+ -ansi -Wall -gall).
+ * data/yacc.c (union yyalloc): Likewise.
+ (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
+
+ Switch from 'int' to 'bool' where that makes sense.
+
+ * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
+ abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
+ abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
+ Return or accept bool, not int. All callers changed.
+ * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
+ bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
+ * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
+ bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
+ bitset_or_and_cmp_): Likewise.
+ * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
+ * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
+ bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
+ bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
+ bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
+ bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
+ bitset_stats_or_and_cmp): Likewise.
+ * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
+ ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
+ ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
+ ebitset_xor_cmp): Likewise.
+ * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
+ lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
+ lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
+ lbitset_xor_cmp): Likewise.
+ * lib/bbitset.h: Include <stdbool.h>.
+ (struct bitset_vtable): The following members now return bool, not
+ int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
+ and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
+ or_and_cmp).
+ * src/conflicts.c (count_rr_conflicts): Likewise.
+ * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
+ All uses changed.
+ * lib/ebitset.c (ebitset_obstack_init): Likewise.
+ * lib/lbitset.c (lbitset_obstack_init): Likewise.
+ * src/getargs.c (debug_flag, defines_flag, locations_flag,
+ no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+ graph_flag): Likewise.
+ * src/getargs.h (debug_flag, defines_flag, locations_flag,
+ no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+ graph_flag): Likewise.
+ * src/output.c (error_verbose): Likewise.
+ * src/output.h (error_verbose): Likewise.
+ * src/reader.c (start_flag, typed): Likewise.
+ * src/reader.h (typed): Likewise.
+ * src/getargs.c (LOCATIONS_OPTION): New constant.
+ (long_options, getargs): Use it.
+ * src/lalr.c (build_relations): Use bool, not int.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/print.c (print_reductions): Likewise.
+ * src/tables.c (action_row, pack_vector): Likewise.
+ * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
+ * src/output.c (prepare): Use it.
+ * src/output.c (token_definitions_output,
+ symbol_destructors_output, symbol_destructors_output): Use string,
+ not boolean integer, to keep track of whether to output separator.
+ * src/print_graph.c (print_core): Likewise.
+ * src/state.c (state_rule_lookaheads_print): Likewise.
+
+ * config/install-sh: Sync from automake 1.7.5.
+
+2003-05-14 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.y (rules_or_grammar_declaration): Require a
+ semicolon after a grammar declaration, in the interest of possible
+ future changes to the Bison input language.
+ Do not allow a stray semicolon at the start of the grammar.
+ (rhses.1): Allow one or more semicolons after any rule, including
+ just before "|" as required by POSIX.
+ * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
+ grammar.
+
+2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
+
+ %parse-param support for lalr1.cc.
+
+ * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
+ b4_cc_constructor_calls, b4_cc_constructor_call,
+ b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
+ definitions.
+ (yy::b4_parser_class_name::b4_parser_class_name): Take extra
+ parse-param arguments.
+ (yy::b4_parser_class_name): Declare instance variables to
+ hold parse-param arguments.
+ * tests/calc.at: s/value/semantic_value/ because value clashes
+ with a member of yy::b4_parser_class_name. Adjust C++ code
+ to handle %parse-param. Enable %parse-param test in C++.
+
+2003-05-12 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
+ English a bit. Fix fclose typo. Change "const char" to "char
+ const", and use ANSI C rather than K&R for "main". Suggest
+ YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
+ and suggest yy_switch_to_buffer.
+
+2003-05-05 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
+ C89. This avoids a diagnostic on compilers that define __STDC__
+ to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-05-03 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
+ Do not overrun array bounds.
+ This should fix a bug reported today by Olatunji Oluwabukunmi in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
+ * src/getargs.c, src/getargs.h: here, as bool, not int.
+ (nondeterministic_parser): New.
+ * src/parse-gram.y, src/scan-gram.l: Support
+ %nondeterministic-parser.
+ * src/output.c (prepare): Use nondeterministic_parser instead
+ of glr_parser where appropriate.
+ * src/tables.c (conflict_row, action_row, save_row)
+ (token_actions, token_actions, pack_vector): Ditto.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
+ with %pure-parser and %locations to exercise the patch from Yakov
+ Markovitch below.
+
+2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * data/yacc.c: (b4_lex_param): Corrected for the case where
+ %lex-param is provided and %pure-parser isn't.
+
+2003-04-27 Paul Eggert <eggert@twinsun.com>
+
+ Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
+ * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
+ if it is not defined.
+ (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
+
+2003-04-26 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
+ Declare to be of type suitable for the ninf value itself, not of
+ type suitable for the corresponding table, since the latter might
+ be unsigned but the ninf value might be negative. This fixes a
+ bug reported by Alexandre Duret-Lutz in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
+
+ * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
+ invokes it. We shouldn't invoke it twice because it will attempt
+ to put error.o in the archive twice. This fixes a glitch reported
+ by Martin Mokrejs in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-04-21 Paul Eggert <eggert@twinsun.com>
+
+ * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
+ to gnulib.
+
+2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
+
+ * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
+ Fix obvious typo that results in uncompilable GLR parsers
+ when both %pure-parser and %locations are used. (trivial change)
+
+2003-04-17 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Add %option nounput, since we no longer use unput.
+ (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
+ Do not insert the expected token via unput, as this runs afoul
+ of a POSIX-compatibility bug in flex 2.5.31.
+ All uses changed to BEGIN the parent state,
+ since we no longer insert the expected token via unput.
+ * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
+ that is no longer emitted after the above change.
+
+ * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
+ the first one. This change is from Paul Hilfinger, and it fixes
+ regression reported by Werner Lemberg in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
+
+ (resolve_sr_conflict): Don't invoke state_errs_set
+ unless one or more tokens have been explicitly made errors.
+ Otherwise, the above change causes Bison to abort.
+
+ * tests/existing.at (GNU pic Grammar): New test case, taken from
+ Lemberg's email.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_symbols): Avoid trailing spaces in the
+ output.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
+ From Paul Hilfinger.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * m4/error.m4: Do not put under dynamic conditions some code which
+ expansion is under static control.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Strings are Destroyed): New.
+
+2003-03-13 Paul Eggert <eggert@twinsun.com>
+
+ * .cvsignore: Add configure.lineno.
+ * src/.cvsignore: Add yacc.
+ * tests/.cvsignore: Add testsuite.log.
+ * doc/fdl.texi: Sync with latest FSF version.
+
+2003-03-12 Paul Eggert <eggert@twinsun.com>
+
+ * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
+ (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
+ cursor, instead of leaving it undefined. This fixes a bug
+ reported by Tim Van Holder in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
+ * tests/input.at (Torturing the Scanner): Test the scanner on
+ an empty input file, which was Tim Van Holder's test case.
+
+ * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
+ <sys/resource.h> can be included, include sys/time.h and
+ sys/times.h first, if available. This works around the SunOS
+ 4.1.4 porting bug reported by Bruce Becker in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
+
+ * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
+ AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
+ AC_HEADER_SYS_WAIT.
+
+ Merge changes from gnulib. This was prompted because the CVS
+ snapshot didn't build on Solaris 7 due to strnlen problems.
+
+ These changes need to be merged back into gnulib:
+ * lib/hash.c: Include <stdbool.h> unconditionally.
+ * m4/onceonly.m4 (m4_quote): New macro.
+ (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
+ Quote AC_FOREACH variable-expansions properly.
+ The 2003-01-03 obstack.h change also needs merging.
+ {end of changes requiring merging}
+
+ * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+ m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
+ m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
+ m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
+ m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
+ New files, imported from gnulib.
+ * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
+ above.
+
+ * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
+ m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
+ gnulib sources.
+
+ * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
+ Add.
+ (gl_ERROR): New, replacing jm_PREREQ_ERROR.
+ (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
+ (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
+ (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
+ (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
+ (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
+ (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
+ (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
+ (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
+ (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
+ (jm_PREREQ_ARGMATCH): Remove.
+ (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
+ * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
+
+ * src/system.h: Include <stdbool.h> unconditionally.
+
+ * lib/bbitset.h: Include <limits.h> unconditionally. We have been
+ assuming at least C89 in the bitset code for some time now.
+
+2003-03-03 Akim Demaille <akim@epita.fr>
+
+ * ro.po: New.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Table of Symbols): Reactivate the
+ documentation for %lex-param, and %parse-param.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
+ generate verbose error messages.
+ Use the number of tokens as an upper bound in yytname, as it
+ cannot be a non terminal.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
+ message.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
+ Use them to exercise yycheck overrun.
+ Based on Andrew Suffield's grammar.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ Create tests/local.at for Bison generic testing macros.
+
+ * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
+ * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
+ This new file.
+ * tests/calc.at (AT_CHECK_CALC): Adjust.
+ * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
+ (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
+ * tests/local.at: here.
+ (AT_COMPILE_CXX): Tags the tests using it as c++.
+ Ignore the test if CXX is not functional.
+
+2003-03-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
+ not loc->end, since loc->end might contain garbage and this leads
+ to undefined behavior on some platforms.
+ (id_loc, token_start): Use (IF_LINTed) initial values that do not
+ depend on *loc, so that the reader doesn't give the the false
+ impression that *loc is initialized.
+ (<INITIAL>"%%"): Do not bother setting code_start, since its value
+ does not survive the return.
+
+2003-03-01 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (code_start): Always initialize it when entering
+ into yylex, as SC_EPILOGUE is activated *before* the corresponding
+ yylex invocation. An alternative would be making it static, but
+ then it starts with the second %%'s beginning, instead of its end.
+
+2003-02-28 Paul Eggert <eggert@twinsun.com>
+
+ * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
+ around a UnixWare 7.1.1 porting bug reported by John Hughes in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
+
+2003-02-26 Paul Eggert <eggert@twinsun.com>
+
+ * README: Mention compiler bug in Sun Forte Developer 6 update 2.
+ Remove Sequent/Pyramid discussion (nobody uses them any more).
+ Merge VMS and MS-DOS discussion; these ports may well be dead
+ but let's keep mentioning them for now. Put <> around email
+ addresses. Add copyright notice.
+
+2003-02-24 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yy_reduce_print): yylineno -> yylno,
+ to avoid collision with flex use of yylineno.
+ Problem reported by Bruce Lilly in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
+ * data/yacc.c (yy_reduce_print): Likewise.
+
+ * config/depcomp: Sync with Automake 1.7.3.
+
+2003-02-21 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Use temporary variables instead of casts to
+ change integer types.
+ Suggested by Paul Eggert.
+
+2003-02-21 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Use "location" consistently to refer to @n,
+ to avoid confusions with lalr1.cc's notion of Position.
+ Suggested by Paul Eggert.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (position.hh): Make sure "columns" never pushes
+ before initial_columns.
+ (location.hh): Use consistent variable names when defining the
+ operator<<.
+ Use "last" so that we subtract from Positions, not from unsigned.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (position.hh): New subfile, including the extended
+ and Doxygen'ed documentation of class Position.
+ (location.hh): Use it.
+ Document a` la Doxygen.
+ With the help of Benoit Perrot.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
+ AT_YACC_IF.
+ Redefine AT_YYERROR_SEES_LOC_IF using it.
+ (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
+ not defined.
+ Don't use the location in yy::Parser::error_ and
+ yy::Parser::print_ when not %locations.
+ Activate more lalr1.cc tests.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: When displaying a line number, be sure to make it
+ an int.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
+ Remove, useless.
+ (YYABORT, YYACCEPT, YYERROR): New.
+ * tests/calc.at: Renable the lalr1.cc test.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
+ error recovery, mixing with/without pops and discarding of the
+ lookahead.
+ Exercise YYERROR.
+ Disable the lalr1.cc tests as currently it doesn't support YYERROR.
+
+2003-02-17 Paul Eggert <eggert@twinsun.com>
+
+ * tests/atlocal.in (LDFLAGS, LIBS): New vars.
+ * tests/testsuite.at (AT_COMPILE): Use them.
+ This fixes the testsuite problem reported by Robert Lentz in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
+
+2003-02-12 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
+ Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
+ * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
+ Check for malloc failure, for consistency with yacc.c.
+ (yytname_size): Remove, for consistency with yacc.c.
+
+ The bug still remains in data/lalr1.cc, as I didn't have time
+ to fix it there.
+
+2003-02-06 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (GXX): Rename as...
+ (CXX): this, to keep the original Autoconf semantics.
+ Require 2.57.
+ * data/lalr1.cc: Fix b4_copyright invocations.
+ If YYDEBUG is not defined, don't depend upon name_ being defined.
+ (location.hh): Include string and iostream.
+ (Position::filename): New member.
+ (Position::Position ()): New.
+ (operator<< (Position)): New.
+ (operator- (Position, int)): New.
+ (Location::first, Location::last): Rename as...
+ (Location::begin, Location::end): these, to mock the conventional
+ iterator names.
+ (operator<< (Location)): New.
+ * tests/atlocal.in (CXX): New.
+ * tests/testsuite.at (AT_COMPILE_CXX): New.
+ * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
+ locations in a more synthetic way.
+ (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
+ lalr1.cc is used.
+ Adjust the C locations to match those from Emacs: first column is
+ column 0.
+ Change all the expected results.
+ Conform to the GCS: simplify the locations when applicable.
+ (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
+ (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
+ these CPP macros with the m4 macros new defined by...
+ (AT_CHECK_PUSHDEFS): this, i.e.:
+ (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
+ (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
+ New macros.
+ (AT_CHECK_POPDEFS): Undefine them.
+ (AT_CHECK_CALC_LALR1_CC): New.
+ Use it for the first lalr1.cc test.
+
+2003-02-04 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
+ Location as is defined.
+
+2003-02-04 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
+ name_ being defined.
+
+2003-02-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/gram.h (start_symbol): Remove unused decl.
+
+ Use more-consistent naming conventions for local vars.
+
+ * src/derives.c (derives_compute): Change type of local var from
+ int to rule_number.
+ * src/gram.c (grammar_rules_partial_print): Likewise.
+ * src/print.c (print_core): Likewise.
+ * src/reduce.c (reduce_grammar_tables): Likewise.
+
+ * src/gram.c (grammar_dump): Change name of item_number *
+ local var from r to rp.
+ * src/nullable.c (nullable_compute): Likewise.
+
+ * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
+
+ * src/gram.h (symbol_number_as_item_number): Use sym, not s,
+ for symbol or symbol_number var.
+ * src/reader.c (grammar_start_symbol_set): Likewise.
+ * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
+ Likewise.
+ * src/state.c (transitions_to): Likewise.
+ * src/state.h: Likewise.
+ * src/tables.c (symbol_number_to_vector_number): Likewise.
+
+ * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
+ char * var.
+
+ * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
+ var.
+
+ * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
+ var.
+
+ * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
+ Use str, not s, for char * var. Use ch, not c, for character var.
+ Use size for size var.
+
+ * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
+ char * var.
+ (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
+ uniqstr var.
+ * src/uniqstr.h: Likewise.
+
+ * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+ get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+ get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
+ get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
+ param to have same name as that of enum, so that we don't use
+ "s" to stand for a non-state.
+
+2003-02-02 Akim Demaille <akim@epita.fr>
+
+ * src/scan-skel.l: Scan more than one inert character per yylex
+ invocation.
+
+2003-02-01 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.875a.
+
+ * po/LINGUAS: Add ms.
+
+2003-01-30 Akim Demaille <akim@epita.fr>
+
+ * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
+
+2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
+ of $1.
+
+ Changes in response to error report by S. Eken: GLR mode does not
+ handle negative $ indices or $ indices in embedded rules correctly.
+ See <http://mail.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
+
+ * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
+ (b4_rhs_location): Ditto.
+ (yyfill): New function to copy from stack tree into array
+ incrementally.
+ (yyuserAction): Modify to allow incremental move of semantic values
+ to rhs array when in GLR mode.
+ Define YYFILL to use in user-defined actions to fill semantic array
+ as needed.
+ Remove dummy use of yystack, as there is now a guaranteed use.
+ (yydoAction): Modify to allow incremental move of semantic values
+ to rhs array when in GLR mode.
+ (yyresolveAction): Ditto.
+ (yyglrShiftDefer): Update comment.
+ (yyresolveStates): Use X == NULL for pointers, not !X.
+ (yyglrReduce): Ditto.
+ (yydoAction): Ditto
+
+ * tests/glr-regr1.at: Rename to ...
+ * tests/glr-regression.at: Add new regression test for the problems
+ described above (adapted from S. Eken).
+ Update copyright notice.
+ * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
+ * tests/Makefile.am: Ditto.
+
+2003-01-28 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc: Do not use @output_header_name@ unless
+ b4_defines_flag is set. This fixes two bugs reported by
+ Tim Van Holder in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
+ and <http://mail.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
+
+2003-01-21 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
+ we don't need to worry about yyerrlab1 being reported as an
+ "unused label" by non-GCC C compilers. The downside is that if
+ locations are used then a couple of statements are duplicated each
+ time YYERROR is invoked, but the upside is that the warnings
+ should vanish.
+ (yyerrlab1): Move code to YERROR.
+ (yyerrlab2): Remove. Change uses back to yyerrlab1.
+ This reverts some of the 2002-12-27 change.
+
+2003-01-17 Paul Eggert <eggert@twinsun.com>
+
+ * src/output.c (symbol_printers_output): Fix typo that led
+ to core dump. Problem reported by Antonio Rus in
+ <http://mail.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
+
+2003-01-13 Akim Demaille <akim@epita.fr>,
+ Quoc Peyrot <chojin@lrde.epita.fr>,
+ Robert Anisko <anisko_r@lrde.epita.fr>
+
+ * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
+ when the stacks contain one element, as the loop would otherwise
+ free the last state, and then use the top state (the one we just
+ popped). This means that the initial elements will not be freed
+ explicitly, as is the case in yacc.c; it is not a problem, as
+ these elements have fake values.
+
+2003-01-11 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS: %expect-violations are now just warnings, reverting
+ to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
+ bootstrapping problem reported by Matthias Klose; see
+ <http://mail.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
+ * src/conflicts.c (conflicts_print): Likewise.
+ * tests/conflicts.at (%expect not enough, %expect too much,
+ %expect with reduce conflicts): Likewise.
+ * doc/bison.texinfo (Expect Decl): Document this. Also mention
+ that the warning is enabled if the number of conflicts changes
+ (not necessarily increases).
+
+ * src/getargs.c (version): Update copyright year.
+
+2003-01-09 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
+
+2003-01-08 Paul Eggert <eggert@twinsun.com>
+
+ * Makefile.maint (WGETFLAGS):
+ New macro, containing "-C off" to disable proxy caches.
+ All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
+ (rel-check): Use $(WGET) instead of wget.
+
+2003-01-06 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
+ the GLR paper of Scott, Johnstone and Hussain.
+
+2003-01-04 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
+ (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
+ * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
+ (EXTRA_LIBRARIES): New var, for liby.a.
+ * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
+ (EXTRA_SCRIPTS): New var, for yacc.
+
+ * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
+ since GNU C++ (as of 3.2.1) does not allow attributes on labels.
+ Problem reported by Nelson H. F. Beebe.
+
+2003-01-03 Paul Eggert <eggert@twinsun.com>
+
+ * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
+ (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
+ when compiling Bison 1.875's `bitset bset = obstack_alloc
+ (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
+
+ * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
+ ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
+ grow to a huge size with typical invocation.
+
+ * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
+ Use the pattern recommended by Autoconf 2.57, except also protect
+ against double-definition.
+ * src/system.h: Likewise.
+ Portability issues reported by Nelson H. F. Beebe.
+
+ * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
+ All uses changed. Provide a definition in both C and C++.
+ (yytrue, yyfalse): Define even if defined (__cplusplus).
+
+ * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
+ Reported by Nelson H. F. Beebe.
+
+ * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
+
+2003-01-02 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyerrlab1): Append `;' after attribute, to
+ pacify the buggy "smart preprocessor" in MacOS 10.2.3.
+ Bug reported by Nelson H. F. Beebe.
+
+2003-01-01 Paul Eggert <eggert@twinsun.com>
+
+ * Version 1.875.
+
+2002-12-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
+ Moved here from...
+ (<INITIAL>","): Here. This causes stray "," to be treated
+ more uniformly.
+
+ * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
+ last brace in braced code when not in Yacc mode, for compatibility
+ with Bison 1.35. This resurrects the 2001-12-15 patch to
+ src/reader.c.
+
+ * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
+ yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
+
+2002-12-28 Paul Eggert <eggert@twinsun.com>
+
+ * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
+ that of SYM's type. This fixes Debian bug 168069, reported by
+ Thomas Olsson.
+
+2002-12-28 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75f.
+
+ Switch back to the Yacc style of conflict reports, undoing some
+ of the 2002-07-30 change.
+ * doc/bison.texinfo (Understanding): Use Yacc style for
+ conflict reports. Also, use new way of locating rules.
+ * src/conflicts.c (conflict_report):
+ Renamed from conflict_report_yacc, removing the old
+ 'conflict_report'. Translate the entire conflict report at once,
+ so that we don't assume that "," has the same interpretation in
+ all languages.
+ (conflicts_output): Use Yacc-style conflict report for each state,
+ instead of our more-complicated style.
+ (conflicts_print): Use Yacc-style conflict report, except print
+ the input file name when not emulating Yacc.
+ * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
+ Conflicted Reduction, %expect not enough, %expect too much,
+ %expect with reduce conflicts): Switch to Yacc-style conflict reports.
+ * tests/existing.at (GNU Cim Grammar): Likewise.
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
+
+ * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
+ fatal): Don't invoke fflush; it's not needed and it might even be
+ harmful for stdout, as stdout might not be open.
+ * src/reduce.c (reduce_print): Likewise.
+
+2002-12-27 Paul Eggert <eggert@twinsun.com>
+
+ Fix a bug where error locations were not being recorded correctly.
+ This problem was originally reported by Paul Hilfinger in
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
+
+ * data/yacc.c (yyparse): New local var yylerrsp, to record the
+ top of the location stack's error locations.
+ (yyerrlab): Set it. When discarding a token, push its location
+ onto yylerrsp so that we don't lose track of the error's end.
+ (yyerrlab1): Now is only the target of YYERROR, so that we can
+ properly record the location of the action that failed. For GCC
+ 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
+ GCC warning about yyerrlab1 being unused if YYERROR is unused.
+ (yyerrlab2): New label, which yyerrlab now falls through to.
+ Compute the error's location by applying YYLLOC_DEFAULT to
+ the locations of all the symbols that went into the error.
+ * doc/bison.texinfo (Location Default Action): Mention that
+ YYLLOC_DEFAULT is also invoked for syntax errors.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Error locations include the locations of all the tokens that were
+ discarded, not just the last token.
+
+2002-12-26 Paul Eggert <eggert@twinsun.com>
+
+ * src/files.c: Include quote.h.
+ (compute_output_file_names): Warn if we detect conflicting
+ outputs to the same file. This should catch the misunderstanding
+ exemplified by Debian Bug 165349, reported by Bruce Stephens..
+
+ * src/conflicts.c (conflicts_print): If the user specifies
+ "%expect N", report an error if there are any reduce/reduce
+ conflicts. This is what the manual says should happen.
+ This fixes Debian bug 130890, reported by Anthony DeRobertis.
+ * tests/conflicts.at (%expect with reduce conflicts): New test.
+
+ Don't use m4_include on relative file names, as it doesn't work as
+ desired if there happens to be a file with that name under ".".
+
+ * m4sugar/version.m4: Remove; it was included but it wasn't used.
+ * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
+ * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
+ * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
+ * src/output.c (output_skeleton): Use full path names when
+ specifying a file to include; don't rely on include path, as
+ it's unreliable when the working file contains a file with
+ that name.
+
+2002-12-25 Paul Eggert <eggert@twinsun.com>
+
+ Remove obsolete references to bison.simple and bison.hairy.
+ Problem mentioned by Aubin Mahe in
+ <http://mail.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
+ * data/glr.c: Comment fix.
+ * doc/bison.1: Remove references. Also, mention "yacc".
+
+ * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
+ with -g option.
+
+ * src/parse-gram.y (declaration): Use enum "report_states" rather
+ than its numeric value 1.
+
+ * src/scan-skel.l ("@output ".*\n): Close any old yyout before
+ opening a new one. This fixes Debian bug 165349, reported by
+ Bruce Stephens.
+
+2002-12-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75e.
+
+ * Makefile.maint (cvs-update): Don't assume that the shell
+ supports $(...), as Solaris sh doesn't.
+
+ * src/parse-gram.y (lloc_default): Remove test for empty
+ nonterminals at the end, since it didn't change the result.
+
+2002-12-24 Paul Eggert <eggert@twinsun.com>
+
+ If the user does not define YYSTYPE as a macro, Bison now declares it
+ using typedef instead of defining it as a macro. POSIX requires this.
+ For consistency, YYLTYPE is also declared instead of defined.
+
+ %union directives can now have a tag before the `{', e.g., the
+ directive `%union foo {...}' now generates the C code
+ `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
+ The default union tag is `YYSTYPE', for compatibility with Solaris 9
+ Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
+ instead of `yyltype'.
+
+ `yystype' and `yyltype' are now obsolescent macros instead of being
+ typedefs or tags; they are no longer documented and will be
+ withdrawn in a future release.
+
+ * data/glr.c (b4_location_type): Remove.
+ (YYSTYPE): Renamed from yystype.
+ (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
+ (struct YYLTYPE): Renamed from struct yyltype.
+ (YYLTYPE): Renamed from yyltype.
+ (yyltype, yystype): New (and obsolescent) macros,
+ for backward compatibility.
+ * data/yacc.c: Likewise.
+
+ * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
+ does not specify a union tag. This is for compatibility with
+ Solaris 9 yacc.
+
+ * src/parse-gram.y (add_param): 2nd arg is now char * not char
+ const *, since it is now modified by stripping surrounding { }.
+ (current_braced_code): Remove.
+ (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
+ PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
+ trailing " {...}". Now of type <chars>.
+ (grammar_declaration): Adjust to bundled tokens.
+ (code_content): Remove; stripping is now done by add_param.
+ (print_token_value): Print contents of bundled tokens.
+ (token_name): New function.
+
+ * src/reader.h (braced_code, current_braced_code): Remove.
+ (token_name): New decl.
+
+ * src/scan-gram.l (handle_dollar, handle_at): Now takes int
+ token_type, not braced_code code_kind. All uses changed.
+ (SC_PRE_CODE): New state, for scanning after a keyword that
+ has (or usually has) an immediately-following braced code.
+ (token_type): New local var, to keep track of which token type
+ to return when scanning braced code.
+ (<INITIAL>"%destructor", <INITIAL>"%lex-param",
+ <INITIAL>"%parse-param", <INITIAL>"%printer",
+ <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
+ instead of returning a token type immediately.
+ (<INITIAL>"{"): Set token type.
+ (<SC_BRACED_CODE>"}"): Use it.
+ (handle_action_dollar, handle_action_at): Now returns bool
+ indicating success. Fail if ! current_rule; this prevents a core dump.
+ (handle_symbol_code_dollar, handle_symbol_code_at):
+ Remove; merge body into caller.
+ (handle_dollar, handle_at): Complain in invalid contexts.
+
+ * NEWS, doc/bison.texinfo: Document the above.
+ * NEWS: Fix years and program names in copyright notice.
+
+2002-12-17 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
+ Reporting, Table of Symbols): Omit mentions of %lex-param and
+ %parse-param from the documentation for now.
+
+2002-12-15 Paul Eggert <eggert@twinsun.com>
+
+ Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
+ GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
+ lookahead symbol, and which sets yychar in parser actions) and it
+ disagreed with the Bison documentation. Bug
+ reported by Andrew Walrond.
+
+ * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
+ as the caller now does that.
+ (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
+ (YYEMPTY): Parenthesize right hand side, since others use it.
+ (yyparse): Don't assume that our generated code is the only code
+ that sets yychar.
+
+2002-12-13 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75d.
+
+ POSIX requires a "yacc" command.
+ * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
+ (MOSTLYCLEANFILES): Add yacc.
+ (yacc): New rule.
+ * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
+ as an alias for bison y.
+
+ * po/LINGUAS: Add da.
+
+ * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
+ problem with latest <getopt.h>.
+ (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
+
+ * doc/fdl.texi: Upgrade to 1.2.
+ * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
+ lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
+ lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
+ gnulib.
+ * config/install-sh: Sync with autotools.
+
+ Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
+ * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
+ locations are requested.
+ (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
+ locations are requested.
+
+2002-12-12 Paul Eggert <eggert@twinsun.com>
+
+ Remove unportable casts and storage allocation tricks.
+ While we're at it, remove almost all casts, since they
+ usually aren't needed and are a sign of trouble.
+
+ * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
+
+ * src/derives.c (derives_compute): Do not subtract NTOKENS from
+ the pointer DSET returned by malloc; this isn't portable.
+ Instead, always use DSET[i - NTOKENS] rather than DSET[i].
+ Similarly for DERIVES.
+ * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
+ * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
+ * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
+
+ * src/derives.c (derives_compute): Do not bother invoking
+ int_of_rule_number, since rule numbers are integers.
+
+ * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
+ rather than XMALLOC (char, N).
+
+ * src/files.c (filename_split): Rewrite to avoid cast.
+
+ * src/gram.h (symbol_number_as_item_number,
+ item_number_as_symbol_number, rule_number_as_item_number,
+ item_number_as_rule_number):
+ Now inline functions rather than macros, to avoid casts.
+ * src/state.h (state_number_as_int): Likewise.
+ * src/tables.c (state_number_to_vector_number,
+ symbol_number_to_vector_number): Likewise.
+
+ * src/gram.h (int_of_rule_number): Remove; no longer used.
+
+ * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
+ since the resulting storage is always stored into.
+
+ * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
+ where it's needed.
+
+ * src/muscle_tab.c (muscle_m4_output):
+ Now inline. Return bool, not int.
+ * src/state.c (state_compare): Likewise.
+ * src/symtab.c (symbol_check_defined,
+ symbol_check_alias_consistency, symbol_pack, symbol_translation,
+ hash_compare_symbol, hash_symbol):
+ Likewise.
+ * src/uniqstr.c (uniqstr_print): Likewise.
+ * src/muscle_tab.c (muscle_m4_output_processor):
+ New function, to avoid casts.
+ * src/state.c (state_comparator, stage_hasher): Likewise.
+ * src/symtab.c (symbol_check_defined_processor,
+ symbol_check_alias_consistency_processor, symbol_pack_processor,
+ symbol_translation_processor, hash_symbol_comparator,
+ hash_symbol_hasher): Likewise.
+ * src/uniqstr.c (uniqstr_print_processor): Likewise.
+ * src/muscle_tab.c (muscles_m4_output):
+ Use new functions instead of casting old functions unportably.
+ * src/state.c (state_hash_new): Likewise.
+ * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
+ symbols_token_translations_init):
+ Likewise.
+ * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
+
+ * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
+ var instead of casting to long, to avoid casts.
+ (prepare_states): Use MALLOC rather than alloca, so that we don't
+ have to worry about alloca.
+ * src/state.c (state_hash_lookup): Likewise.
+
+ * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
+ local var instead of casting to unsigned char, to avoid casts.
+
+ * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
+ STATE_ALLOC): Remove.
+ (transitions_new, errs_new, reductions_new, state_new): Use malloc
+ rather than calloc, and use offsetof to avoid allocating slightly
+ too much storage.
+ (state_new): Initialize all members.
+
+ * src/state.c (state_hash): Use unsigned accumulator, not signed.
+
+ * src/symtab.c (symbol_free): Remove; unused.
+ (symbol_get): Remove cast in lhs of assignment.
+ (symbols_do): Now static. Accept generic arguments, not
+ hashing-related ones.
+
+ * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
+ (symbol_processor): Remove.
+ (symbols_do): Remove decl; now static.
+
+ * src/system.h (alloca): Remove; decl no longer needed.
+ (<stddef.h>): Include, for offsetof.
+ (<inttypes.>, <stdint.h>): Include if available.
+ (uintptr_t): New type, if system lacks it.
+ (CALLOC, MALLOC, REALLOC): New macros.
+ All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
+ new macros.
+
+ * src/tables.c (table_size): Now int, to pacify GCC.
+ (table_grow, table_ninf_remap): Use signed table size.
+ (save_row): Don't bother initializing locals when not needed.
+ (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
+ * src/uniqstr.c (hash_compare_uniqstr): Likewise.
+
+ * src/vcg.h: Correct misspellings.
+
+ * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
+
+
+ * src/getargs.c (getargs): Don't assume EOF == -1.
+
+2002-12-09 Paul Eggert <eggert@twinsun.com>
+
+ Change identifier spellings to avoid collisions with names
+ that are reserved by POSIX.
+
+ Don't use names ending in _t, since POSIX reserves them.
+ For consistency, remove _e and _s endings -- they're weren't
+ needed to remove ambiguity. All uses changed.
+ * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
+ turn was just renamed from struniq_t.
+ * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
+ which in turn was just renamed from struniq_processor_t.
+ (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
+ in turn was renamed from hash_compare_struniq_t.
+ * src/LR0.c (struct state_list): Renamed from struct state_list_s.
+ (state_list): Renamed from state_list_t.
+ * src/assoc.h (assoc): Renamed from assoc_t.
+ * src/conflicts.c (enum conflict_resolution): Renamed from
+ enum conflict_resolution_e.
+ * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
+ (rule_list): Renamed from rule_list_t.
+ * src/getargs.h (enum trace): Renamed from enum trace_e.
+ (enum report): Renamed from enum report_e.
+ * src/gram.h (item_number): Renamed from item_number_t.
+ (rule_number): Renamed from rule_number_t.
+ (struct rule_s): Remove the "rule_s" part; not used.
+ (rule): Renamed from rule_t.
+ (rule_filter): Renamed from rule_filter_t.
+ * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
+ (goto_list): Renamed from goto_list_t.
+ * src/lalr.h (goto_number): Renamed from goto_number_t.
+ * src/location.h (location): Renamed from location_t.
+ * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
+ and moved here from:
+ * src/muscle_tab.h (muscle_entry_t): here.
+ * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
+ (rule_list): Renamed from rule_list_t.
+ * src/print_graph.c (static_graph): Renamed from graph.
+ * src/reader.h (braced_code): Renamed from braced_code_t.
+ Remove brace_code_e tag.
+ * src/relation.h (relation_node): Renamed from relation_node_t.
+ (relation_nodes): Renamed from relation_nodes_t.
+ (relation): Renamed from relation_t.
+ * src/state.h (state_number): Renamed from state_number_t.
+ (struct state): Renamed from struct state_s.
+ (state): Renamed from state_t.
+ (transitions): Renamed from transitions_t. Unused (and
+ misspelled) transtion_s tag removed.
+ (errs): Renamed from errs_t. Unused errs_s tag removed.
+ (reductions): Renamed from reductions_t. Unused tag
+ reductions_s removed.
+ * src/symlist.h (symbol_list): Renamed from symbol_list_t.
+ (struct symbol_list): Renamed from struct symbol_list_s.
+ * src/symtab.h (symbol_number): Renamed from symbol_number_t.
+ (struct symbol): Renamed from struct symbol_s.
+ (symbol): Renamed from symbol_t.
+ * src/tables.c (vector_number): Renamed from vector_number_t.
+ (action_number): Renamed from action_t.
+ * src/tables.h (base_number): Renamed from base_t.
+ * src/vcg.h (enum color): Renamed from enum color_e.
+ (enum textmode): Renamed from enum textmode_e.
+ (enum shape): Renamed from enum shape_e.
+ (struct colorentry): Renamed from struct colorentry_s.
+ (struct classname): Renamed from struct classname_s.
+ (struct infoname): Renamed from struct infoname_s.
+ (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
+ (enum decision): Renamed from enum decision_e.
+ (enum orientation): Renamed from enum orientation_e.
+ (enum alignment): Renamed from enum alignment_e.
+ (enum arrow_mode): Renamed from enum arrow_mode_e.
+ (enum crossing_type): Renamed from enum crossing_type_e.
+ (enum view): Renamed from enum view_e.
+ (struct node): Renamed from struct node_s.
+ (node): Renamed from node_t.
+ (enum linestyle): Renamed from enum linestyle_e.
+ (enum arrowstyle): Renamed from enum arrowstyle_e.
+ (struct edge): Renamed from struct edge.
+ (edge): Renamed from edge_t.
+ (struct graph): Renamed from struct graph_s.
+ (graph): Renamed from graph_t.
+ * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
+ Rename value_t -> value.
+ * tests/input.at (Torturing the Scanner): Rename value_t -> value,
+ value_t_as_yystype -> value_as_yystype.
+
+ Don't include <errno.h> in the mainstream code, since it
+ reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
+ * lib/get-errno.c, lib/get-errno.h: New files.
+ * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
+ get-errno.c.
+ * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
+ * src/output.c (output_skeleton): Likewise.
+ * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
+ instead of errno.
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
+ Likewise.
+ (handle_action_dollar, handle_action_at): Likewise.
+ * src/system.h: Do not include <errno.h>.
+ (TAB_EXT): Renamed from EXT_TAB.
+ (OUTPUT_EXT): Renamed from EXT_OUTPUT.
+
+ Avoid str[a-z]*, since <string.h> reserves that name space.
+ Change all instances of "struniq" in names to "uniqstr", and
+ likewise for "STRUNIQ" and "UNIQSTR".
+ * src/uniqstr.c: Renamed from src/struniq.c.
+ * src/uniqstr.h: Renamed from src/struniq.h.
+ * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
+ * src/files.c (strsuffix): Remove; unused.
+ (concat2): Renamed from stringappend. Now static.
+ * src/files.h (strsuffix, stringappend): Remove; unused.
+ * src/parse-gram.y (<chars>): Renamed from <string>.
+ (<uniqstr>): Renamed from <struniq>.
+ * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
+ * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
+ (struct graph_s.expand): Renamed from struct graph_s.stretch.
+ * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
+ (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
+ (N_EXPAND): Renamed from N_STRETCH.
+
+ Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
+ * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
+ * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
+ Remove; unused.
+ * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
+ * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
+ * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
+ * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
+ (BASE_MAXIMUM): Renamed from BASE_MAX.
+ (BASE_MINIMUM): Renamed from BASE_MIN.
+ (ACTION_MAX): Remove; unused.
+ (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
+ Unnecessary casts removed from above defines.
+
+
+ Fix misspelling in names.
+ * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
+ * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
+ G_NODE_ALIGNEMENT.
+
+
+ * lib/timevar.c (timevar_report): Renamed from time_report,
+ for consistency with other names.
+ * lib/timevar.h (timevar_report): New decl.
+ * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
+
+
+ Sort include-file uses.
+
+ Reorder all include files under src to be in the order "system.h".
+ then the ../lib include files in angle brackets (alphabetized),
+ then the . include files in double-quotes (alphabetized). Fix
+ dependency breakages encountered in this process, as follows:
+ * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
+ * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
+ * src/state.h: Include "symtab.h".
+
+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/archive/html/bug-bison/2002-12/msg00007.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/archive/html/bug-bison/2002-12/msg00000.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.
* 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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00114.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.
* 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 (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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
2002-11-18 Akim Demaille <akim@epita.fr>
duplicating xfopen's body.
Fix bugs reported by Nelson H. F. Beebe in
- <http://mail.gnu.org/pipermail/bug-bison/2002-November/001893.html>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00078.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
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>.
+ test backslash-newline in C character constant.
2002-11-14 Akim Demaille <akim@epita.fr>
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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
* tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
-o c"; the HP C compiler chatters during compilation.
* 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>.
+ by Nelson H. F. Beebe in
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
* lib/bbitset.h (BITSET_INLINE): Remove.
* lib/bitset.h [! BITSET_INLINE]: Remove.
* 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>.
+ This fixes one of the bugs reported by Nelson H. F. Beebe in
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00058.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>
+ <http://mail.gnu.org/archive/html/bison-patches/2002-11/msg00062.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,
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>
+ <http://mail.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
Use new @ escapes consistently. Represent brackets with @{ and @}
rather than @<:@ and @:>@, since this works a bit better with dumb
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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-11/msg00000.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.
* 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
+ http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
+ http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
* doc/bison.texinfo: Minor spelling and typographical fixes. Use
@acronym consistently. Standardize on "Yacc" instead of "YACC",
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>:
+ <http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
"nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
because the Bison parser reads the second action before reducing
the first one.
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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
* lib/timevar.c: Update copyright date and clarify comments.
(get_time) [IN_GCC]: Keep the GCC version for reference.
* 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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00015.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>.
+ <http://mail.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
2002-10-11 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>,
+ <http://mail.gnu.org/archive/html/bison-patches/2002-08/msg00007.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.
2002-06-11 Akim Demaille <akim@epita.fr>
- * src/reader.c (parse_action): Don't store directly into the
+ * src/reader.c (parse_action): Don't store directly into the
rule's action member: return the action as a string.
Don't require `rule_length' as an argument: compute it.
(grammar_current_rule_symbol_append)
* tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
its argument.
- Reported by Peter Hámorský.
+ Reported by Peter Hamorsky.
2001-12-05 Akim Demaille <akim@epita.fr>
2001-11-12 Akim Demaille <akim@epita.fr>
- %expext was not functioning at all.
+ %expect was not functioning at all.
* src/conflicts.c (expected_conflicts): Set to -1.
(conflict_report): Use ngettext.
obstacks.
(output_token_defines, reader_output_yylsp): Use obstacks.
* src/system.h (obstack_fgrow3): New.
+ * po/POTFILES.in: Adjust.
2000-11-01 Akim Demaille <akim@epita.fr>
1987-12-16 Richard Stallman <rms@gnu.org>
* REFERENCES: entered into RCS
+
-----
-Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
-This file is part of GNU Bison.
+This file is part of Bison, the GNU Compiler Compiler.
-GNU Bison is free software; you can redistribute it and/or modify
+Bison is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
-GNU Bison is distributed in the hope that it will be useful,
+Bison is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Bison; see the file COPYING. If not, write to
+along with Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
projects / bison.git / blobdiff