+2010-02-04 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Update POTFILES.
+ * HACKING (Release Procedure): Add reminder about keeping
+ POTFILES files up-to-date.
+ * po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
+
+2010-02-01 Joel E. Denny <jdenny@clemson.edu>
+
+ Code cleanup.
+ * tests/atlocal.in (abs_top_srcdir): Remove shell variable,
+ which is already defined in atconfig.
+
+2010-01-22 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: fix missing include caught by g++ 4.4.1.
+ Reported by Tys Lefering.
+ * HACKING (Release checks): Add note about trying a recent GCC.
+ * tests/regression.at (_AT_DATA_DANCER_Y): For C++, include
+ cstdlib for abort.
+ (_AT_DATA_EXPECT2_Y): Likewise.
+
+2010-01-21 Joel E. Denny <jdenny@clemson.edu>
+
+ * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
+
+2010-01-21 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
+ * HACKING (Release Procedure): Update notes on copyright years.
+ * Makefile.am (update-package-copyright-year): New target rule.
+ * build-aux/update-package-copyright-year: New file.
+ * cfg.mk (update-copyright): Add update-package-copyright-year
+ as a dependency.
+
+2010-01-19 Joel E. Denny <jdenny@clemson.edu>
+
+ * bootstrap: Import improvements from latest gnulib.
+
+2010-01-19 Joel E. Denny <jdenny@clemson.edu>
+
+ build: require Automake 1.11.1 to avoid a security flaw.
+ * HACKING (Release Procedure): Don't document Automake security
+ flaw here.
+ * configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
+ why here.
+
+2010-01-19 Joel E. Denny <jdenny@clemson.edu>
+
+ gnulib: update to latest.
+
+2010-01-19 Joel E. Denny <jdenny@clemson.edu>
+
+ ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
+
+2010-01-15 Joel E. Denny <jdenny@clemson.edu>
+
+ Thank the developer of the initial push parser implementation.
+ This unfortunate oversight is several years old.
+ * THANKS (Odd Arild Olsen): Add.
+
+2010-01-04 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix some comments concerning LR(0) versus LALR(1).
+
+ Stop equating LR(0) with nondeterminism and LALR(1) with
+ determinism. That is, if all states are consistent, then LR(0)
+ tables are deterministic. On the other hand, LALR(1) tables
+ might be nondeterministic before conflict resolution, and GLR
+ permits LALR(1) tables to remain nondeterministic.
+ * src/LR0.c, src/LR0.h: Here.
+ * src/lalr.c, src/lalr.h: Here.
+ * src/main.c (main): Here.
+ * src/state.c, src/state.h: Here.
+
+ * src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
+ parser tables.
+
+2010-01-04 Joel E. Denny <jdenny@clemson.edu>
+
+ maint: run "make update-copyright"
+
+2009-12-30 Joel E. Denny <jdenny@clemson.edu>
+
+ POSIX: complain if %prec's token was not defined.
+ * NEWS (2.5): Document.
+ * src/reader.c (grammar_rule_check): Convert warning to
+ complaint.
+ * tests/input.at (%prec's token must be defined): Update.
+
+2009-12-30 Joel E. Denny <jdenny@clemson.edu>
+
+ POSIX: warn if %prec's token was not defined.
+ Reported by Florian Krohm at
+ <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
+ * NEWS (2.4.2): Document.
+ * src/reader.c (grammar_rule_check): Implement.
+ (grammar_current_rule_prec_set): Add comments explaining that we
+ here assume a %prec identifier is a token, but we still manage
+ to support POSIX.
+ * tests/input.at (%prec's token must be defined): New test
+ group.
+
+2009-12-31 Joel E. Denny <jdenny@clemson.edu>
+
+ * HACKING (Release Procedure): Recommend a secure automake.
+
+2009-12-29 Joel E. Denny <jdenny@clemson.edu>
+
+ portability: `<' and `>' are not always defined on addresses.
+ Specifically, don't sort objects by their memory addresses when
+ they're not allocated in the same array or other object. Though
+ I haven't found a test case where that fails on my platform, C
+ says the behavior is undefined.
+ * src/AnnotationList.c (AnnotationList__insertInto): Remove
+ FIXME. Use new id field of InadequacyList nodes rather than
+ their memory addresses when sorting.
+ (AnnotationList__compute_from_inadequacies): Add
+ inadequacy_list_node_count argument to pass to
+ InadequacyList__new_conflict.
+ * src/AnnotationList.h
+ (AnnotationList__compute_from_inadequacies): Update prototype
+ and documentation for new argument.
+ * src/InadequacyList.c (InadequacyList__new_conflict): Add
+ node_count argument and use it to assign a unique ID.
+ * src/InadequacyList.h (InadequacyListNodeCount): New typedef.
+ (InadequacyList): Add id field.
+ (InadequacyList__new_conflict): Update prototype and
+ documentation for new argument.
+ * src/ielr.c (ielr_compute_annotation_lists): Update
+ AnnotationList__compute_from_inadequacies invocation.
+
+2009-12-20 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix handling of yychar manipulation in user semantic actions.
+ The problem was that yacc.c didn't always update the yychar
+ translation afterwards. However, other skeletons appear to be
+ fine. glr.c appears to already translate yychar before every
+ use. lalr1.cc does not define yychar and does not document its
+ replacement, yyla, for users. It does provide yyclearin, but
+ that does not manipulate yyla and thus requires no translation
+ update. In lalr1.java, yychar is out of scope during semantic
+ actions.
+ * NEWS (2.5): Document.
+ * data/yacc.c (YYBACKUP): Don't bother translating yychar into
+ yytoken here.
+ (yyparse, yypush_parse): Instead, translate before every use of
+ yytoken, and add comments explaining this approach.
+ * tests/actions.at (Destroying lookahead assigned by semantic
+ action): New test group checking that translation happens before
+ lookahead destructor calls at parser return. Previously,
+ incorrect destructors were called.
+ * tests/conflicts.at (parse.error=verbose and consistent
+ errors): New test group checking that translation happens at
+ syntax error detection before the associated verbose error
+ message and the associated lookahead destructor calls. While
+ the destructor call is fixed by this patch, the verbose error
+ message is currently incorrect due to another bug (see
+ comments in test group), so this is an expected failure for now.
+
+2009-12-21 Joel E. Denny <jdenny@clemson.edu>
+
+ YYFAIL: warn about uses and remove from lalr1.java.
+ * NEWS (2.5): Document.
+ * data/lalr1.java (parser::YYStack::YYFAIL): Rename to YYERRLAB,
+ and make it private. Update all uses.
+ * src/scan-code.l (SC_RULE_ACTION): Implement warning.
+
+2009-12-21 Joel E. Denny <jdenny@clemson.edu>
+
+ YYFAIL: deprecate.
+ * NEWS (2.4.2): Document deprecation and the phase-out plan.
+ * data/lalr1.java (parser::YYStack::YYFAIL): Add comment about
+ deprecation.
+ * data/yacc.c (YYFAIL): Likewise, and suppress warnings about
+ YYFAIL from GCC cpp's -Wunused-macros.
+ * doc/bison.texinfo (Java Action Features): Remove YYFAIL
+ documentation.
+ (LocalWords): Remove YYFAIL.
+
+2009-12-20 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: cleanup.
+ * tests/c++.at (Syntax error discarding no lookahead): Don't
+ ignore stderr. Instead, eliminate remaining warnings.
+
+2009-12-18 Joel E. Denny <jdenny@clemson.edu>
+
+ lalr1.cc: don't discard non-existent lookahead on syntax error.
+ * data/lalr1.cc (parser::parse): Check yyempty first.
+ * tests/c++.at (Syntax error discarding no lookahead): New test
+ group.
+
+2009-12-17 Joel E. Denny <jdenny@clemson.edu>
+
+ Code cleanup.
+ * src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
+ function, which is no longer used.
+
+2009-12-16 Joel E. Denny <jdenny@clemson.edu>
+
+ Add gcc's -Wundef to test suite and fix another warning from it.
+ * NEWS (2.4.2): Update description of -Wundef fix.
+ * configure.ac (WARN_CXXFLAGS_TEST): New substitution.
+ (WARN_CFLAGS_TEST): New substitution.
+ * data/glr.c: Avoid warning about __STRICT_ANSI__.
+ * tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
+ WARN_CFLAGS.
+ (NO_WERROR_CFLAGS): Likewise.
+ (CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
+
+2009-12-16 Joel E. Denny <jdenny@clemson.edu>
+
+ * data/yacc.c: Reformat m4 a little.
+
+2009-12-16 Joel E. Denny <jdenny@clemson.edu>
+
+ Document gcc -Wundef fix.
+ * NEWS (2.4.2): Here.
+ * THANKS (Jonathan Nieder): Add.
+
+2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
+
+ Simplify y.tab.c when location tracking is disabled.
+ * data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
+ tracking is not enabled. Instead, unconditionally define
+ YY_LOCATION_PRINT as a no-op for backward compatibility.
+
+2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
+
+ Avoid warnings from gcc -Wundef y.tab.c.
+ * data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
+ defined before using them.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+
+2009-12-15 Joel E. Denny <jdenny@clemson.edu>
+
+ autoconf: update to latest for fix of M4 detection.
+ Reported by Eric Blake.
+ * submodules/autoconf: Update.
+
+2009-12-15 Joel E. Denny <jdenny@clemson.edu>
+
+ portability: use -DGNULIB_POSIXCHECK.
+ Reported by Eric Blake. See discussions at
+ <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
+ and
+ <http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
+ * HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
+ * bootstrap.conf (gnulib_modules): Add all the printf modules
+ suggested by -DGNULIB_POSIXCHECK. Add realloc-posix as
+ suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
+ (excluded_files): Remove m4/printf-posix.m4.
+ * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
+ lib/libbison.a so gnulib libraries can be linked.
+
+2009-12-15 Joel E. Denny <jdenny@clemson.edu>
+
+ gnulib: update for fix of fprintf-posix, which we'll use soon.
+ * etc/prefix-gnulib-mk (prefix): Adjust regex for make file
+ targets so that gnulib's new arg-nonnull.h and link-warning.h
+ are matched.
+ * gnulib: Update.
+
+2009-12-14 Joel E. Denny <jdenny@clemson.edu>
+
+ Enable assertion output and --disable-assert for configure.
+ * bootstrap.conf (gnulib_modules): Add assert module.
+ * src/system.h (aver): Define as assert, and summarize the
+ discussion on this issue.
+
+2009-12-14 Joel E. Denny <jdenny@clemson.edu>
+
+ Expand GLR acronym in summary of Bison.
+ Based on discussion with Akim Demaille starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
+ * doc/bison.texinfo (Introduction): Here.
+ * src/getargs.c (usage): Here.
+
+2009-10-03 Alex Rozenman <rozenman@gmail.com>
+
+ Document named references.
+ * doc/bison.texinfo (Actions): Add new example and xref to
+ Using Named References node.
+ (Using Named References): New node.
+
+2009-10-16 Joel E. Denny <jdenny@clemson.edu>
+
+ cleanup.
+ * src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
+ of char*.
+ (Sbitset__isEmpty): Use Sbitset instead of char*.
+ * src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
+ instead of char. This helps to avoid casting errors.
+ (Sbitset__or): Use Sbitset instead of char*.
+
+2009-10-16 Joel E. Denny <jdenny@clemson.edu>
+
+ portability: don't assume 8-bit bytes.
+ That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
+ * src/Sbitset.h (Sbitset__nbytes): Here.
+ (Sbitset__byteAddress): Here.
+ (Sbitset__bit_mask): Here.
+ (Sbitset__last_byte_mask): Here.
+ (Sbitset__ones): Here.
+ (SBITSET__FOR_EACH): Here.
+
+2009-10-11 Joel E. Denny <jdenny@clemson.edu>
+
+ portability: use va_start and va_end in the same function.
+ * src/complain.c (error_message): Move va_end from here...
+ (ERROR_MESSAGE): ... to here.
+
+2009-10-08 Joel E. Denny <jdenny@clemson.edu>
+
+ * data/bison.m4: Update comments for rename to muscle-tab.h.
+
+2009-10-07 Joel E. Denny <jdenny@clemson.edu>
+
+ Minor code cleanup.
+ * src/muscle-tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
+ replace all uses with UNIQSTR_CONCAT.
+ * src/uniqstr.c (uniqstr_vsprintf): New function.
+ * src/uniqstr.h (uniqstr_vsprintf): Add prototype.
+ (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
+ macros.
+
+2009-10-06 Joel E. Denny <jdenny@clemson.edu>
+
+ * TODO (Complaint submessage indentation): New.
+
+2009-10-04 Joel E. Denny <jdenny@clemson.edu>
+
+ Minor code cleanup.
+ * src/parse-gram.y: Clean up sorting of declarations.
+ Use types to simplify %printer declarations where possible.
+ Provide %printer for BRACKETED_ID and symbol.prec.
+ * src/symtab.c: Whitespace change.
+
+2009-10-04 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: skip tests of file names that platform does not support.
+ Reported by Michael Raskin at
+ <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
+ * THANKS (Michael Raskin): Add.
+ * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix. Cygwin used
+ to fail at least for file names containing ":" or "\".
+
+2009-09-23 Joel E. Denny <jdenny@clemson.edu>
+
+ yysyntax_error: avoid duplicate lookahead collection.
+ Except when memory reallocation is required, this change
+ eliminates the need to invoke yysyntax_error twice and thus to
+ repeat the collection of lookaheads. It also prepares for
+ future extensions that will make those repetitions more
+ expensive and that will require additional memory management in
+ yysyntax_error. Finally, it fixes an obscure bug already
+ exercised in the test suite.
+ * data/yacc.c (yysyntax_error): Add arguments for message
+ buffer variables stored in the parser. Instead of size, return
+ status similar to yyparse status but indicating success of
+ message creation. Other than the actual reallocation of the
+ message buffer, import and clean up memory management code
+ from...
+ (yyparse, yypush_parse): ... here.
+ * tests/regression.at (parse.error=verbose overflow): No longer
+ an expected failure.
+
+2009-09-23 Joel E. Denny <jdenny@clemson.edu>
+
+ yysyntax_error: test memory management more.
+ * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
+ * tests/regression.at (parse.error=verbose and
+ YYSTACK_USE_ALLOCA): New test group.
+ (parse.error=verbose overflow): New test group that reveals an
+ obscure bug. Expected fail for now.
+
+2009-10-04 Joel E. Denny <jdenny@clemson.edu>
+
+ benchmarks: use %debug consistently among grammars.
+ * etc/bench.pl.in (generate_grammar_triangular): Do not activate
+ %debug by default. It can affect the timings even if yydebug=0.
+ (generate_grammar_calc): For consistency with other grammars,
+ use YYDEBUG environment variable to set yydebug.
+
+2009-10-03 Joel E. Denny <jdenny@clemson.edu>
+
+ Remove dead code.
+ * src/symtab.c (symbol_pack): Here because every symbol's number
+ is always defined by this time.
+
+2009-10-03 Alex Rozenman <rozenman@gmail.com>
+
+ Add additional space after periods in NEWS.
+ * NEWS (2.5): here.
+
+2009-09-29 Joel E. Denny <jdenny@clemson.edu>
+
+ Use the correct conversion specifier for size_t.
+ Reported by Jim Meyering.
+ * src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
+ because Sbitset__Index is size_t.
+ * src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
+
+2009-09-27 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: don't abuse AT_BISON_CHECK.
+ * tests/regression.at (parse-gram.y: LALR = IELR): Move
+ additional shell commands outside of AT_BISON_CHECK.
+
+2009-09-26 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: check that parse-gram.y's IELR and LALR are identical.
+ * tests/atlocal.in (abs_top_srcdir): New shell variable.
+ * tests/regression.at (parse-gram.y: LALR = IELR): New test
+ group.
+
+2009-09-19 Alex Rozenman <rozenman@gmail.com>
+
+ Keep sub-messages aligned. Fix strings for translation.
+ * src/location.h (location_print): Add return value.
+ * src/location.c (location_print): Return number of printed
+ characters.
+ * src/complain.h (complain_at_indent, warn_at_indent): Prototype
+ new functions.
+ * src/complain.cpp (indent_ptr): New static variable.
+ (error_message, complain_at_indent, warn_at_indent): Implement
+ the alignment mechanism.
+ * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
+ for translations. Use new alignment mechanism.
+ * tests/named-ref.at: Adjust test-cases.
+ * NEWS (2.5): Add an announcement about named references.
+
+2009-09-17 Akim Demaille <demaille@gostai.com>
+
+ doc: fixes.
+ * doc/bison.texinfo: here.
+ Reported by Alex Rozenman.
+
+2009-09-16 Akim Demaille <demaille@gostai.com>
+
+ doc: lalr1.cc and variants.
+ * doc/bison.texinfo (Decl Summary): Document the "lex_symbol" and
+ "variant" %define variables.
+ (C++ Semantic Values): Split into...
+ (C++ Unions, C++ Variants): these.
+ The latter is new.
+ (C++ Parser Interface): Fix type names.
+ Document parser::syntax_error.
+ Document the fact that locations are not mandatory.
+ (C++ Scanner Interface): Split into...
+ (Split Symbols, Complete Symbols): these.
+ The later is new.
+ (Calc++ Parsing Driver): Use variants.
+ Add more comments.
+ Adjust style.
+ (Calc++ Parser): Declare all the tokens, no
+ longer accept raw characters.
+ Remove %union.
+ Adjust types and printers.
+ Remove destructors.
+ (Calc++ Scanner): Use make_<SYMBOL> functions.
+ Use strerror in error message.
+
+2009-09-16 Akim Demaille <demaille@gostai.com>
+
+ doc: spell checking.
+ * doc/bison.texinfo: here.
+
+2009-09-16 Akim Demaille <demaille@gostai.com>
+
+ doc: comment changes.
+ * doc/bison.texinfo: Comment changes.
+
+2009-09-16 Akim Demaille <demaille@gostai.com>
+
+ lalr1.cc: factor the yytranslate_ invocation in make_SYMBOLS.
+ * data/c++.m4, data/lalr1.cc (parser::symbol_type): Change the
+ constructor to take a token_type instead of the (internal) symbol
+ number.
+ Call yytranslate_.
+ * data/variant.hh (b4_symbol_constructor_define_): Therefore,
+ don't call yytranslate_ here.
+
+2009-09-16 Akim Demaille <demaille@gostai.com>
+
+ TODO: statistics.
+ * TODO (Figures): New.
+
+2009-09-13 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: clean up push.at test group titles.
+ * tests/push.at: Remove "Push Parsing: " from test group titles
+ because these are already under the banner "Push Parsing Tests".
+
+2009-09-12 Alex Rozenman <rozenman@gmail.com>
+
+ Provide an additional sub-message for clarity.
+ Add "symbol not found in production" error message when
+ an "invalid reference" is detected in named references
+ resolution.
+ * src/scan-code.l: Update "invalid reference" case.
+ * tests/named-ref.at: Adjust test-cases.
+
+2009-09-10 Joel E. Denny <jdenny@clemson.edu>
+
+ Clean up yacc.c a little.
+ * data/yacc.c: Clean up M4 for readability, and make output
+ whitespace more consistent. For the main parse function
+ comment, instead of saying "yyparse or yypush_parse", say either
+ "yyparse" or "yypush_parse" depending on which it actually is.
+
+2009-09-10 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix --enable-gcc-warnings.
+ * src/parse-gram.y (%printer <param>): Handle param_none.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ lalr1.cc: syntax_error as exceptions.
+ It is common to use sort of factories in the user actions. These
+ factories may check some "syntactic" constraints that are not
+ enforced by the grammar itself. This is possible using YYERROR
+ within the action itself. Provide the user with a means to throw
+ a syntax_error exception.
+
+ * data/c++.m4 (b4_public_types_declare, b4_public_types_define):
+ Declare and define yy::parser::syntax_error.
+ * data/lalr1.cc: Include stdexcept.
+ (yy::parser::parse): Wrap the user action within a try/catch.
+ * data/glr.cc: Include stdexcept.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ lalr1.cc: add missing "inline".
+ * data/c++.m4 (b4_public_types_define): Add missing inline to
+ implementations provided in headers.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ %param: documentation.
+ * NEWS (2.6): Document %param, %lex-param, and %parse-param
+ changes.
+ * doc/bison.texinfo: Document that %lex-param and %parse-param
+ are n-ary.
+ Changes some examples to demonstrate it.
+ (Calc++ Parser): Use %param.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ Regen.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ style changes.
+ * src/parse-gram.y (add_param): Scope changes.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ %parse: support several arguments.
+ * src/parse-gram.y (current_param): New.
+ (param_type): Add param_none.
+ (params): New nonterminal.
+ Use it.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ Regen.
+
+2009-09-09 Akim Demaille <demaille@gostai.com>
+
+ %param.
+ Provide a means to factor lex-param and parse-param common
+ declarations.
+
+ * src/parse-gram.y (param_type): New.
+ Define a %printer for it.
+ (add_param): Use it.
+ (%parse-param, %lex-param): Merge into...
+ (%parse): this new token.
+ Adjust the grammar to use it.
+ * src/scan-gram.l (RETURN_VALUE): New.
+ (RETURN_PERCENT_FLAG): Use it.
+ (RETURN_PERCENT_PARAM): New.
+ Use it to support %parse-param, %lex-param and %param.
+
+2009-09-03 Joel E. Denny <jdenny@clemson.edu>
+
+ Use aver not assert.
+ * src/output.c: Don't include assert.h.
+ (output_skeleton): Use aver not assert.
+ * src/system.h (aver): In documentation of why, add links to
+ Paul Eggert's explanations in the mailing lists.
+
+2009-09-05 Alex Rozenman <rozenman@gmail.com>
+
+ Use "Unresolved reference" error message when no symbols were found
+ in a symbolic reference resolution. Remove .expr and -expr from
+ the shown reference when the reference is unresolved.
+ * src/scan-code.l: Change the error message, adjust location columns,
+ rename variable "exact_mode" to "explicit_bracketing".
+ * tests/named-ref.at: Adjust existing tests and add a new one.
+
+2009-09-04 Akim Demaille <demaille@gostai.com>
+
+ Adjust synclines in src/parse-gram.[ch].
+ * tests/bison.in: Do some magic (including working around issues
+ with ylwrap) when this wrapper is used to compile
+ src/parse-gram.y.
+
+2009-09-03 Joel E. Denny <jdenny@clemson.edu>
+
+ Complain about unused %define variables and %code qualifiers.
+ * NEWS (2.5): Document.
+ * data/bison.m4 (b4_check_user_names): Complain instead of warn.
+ * doc/bison.texinfo (Decl Summary): Document complaint, and
+ improve %define documentation a little otherwise.
+ * tests/input.at (Reject unused %code qualifiers): Update.
+ (%define errors): Update.
+ (%define, --define, --force-define): Update.
+ (%define backward compatibility): Update.
+ (Unused %define api.pure): Update.
+ * tests/push.at (Push Parsing: Unsupported Skeletons): Update.
+
+2009-09-03 Joel E. Denny <jdenny@clemson.edu>
+
+ Don't suppress warnings about unused parse.error.
+ * data/bison.m4 (b4_error_verbose_flag): Don't examine value of
+ %define variable parse.error unless b4_error_verbose_flag is
+ actually expanded in a skeleton.
+
+2009-09-03 Akim Demaille <demaille@gostai.com>
+
+ * NEWS (2.4.2): Add "Internationalization" item.
+
+2009-09-03 Akim Demaille <demaille@gostai.com>
+
+ bootstrap: fix/improve find_tool.
+ * bootstrap (find_tool): Improve error messages.
+ Fix typo about find_tool_names.
+
+2009-08-29 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
+ See
+ <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
+ * src/scan-code.h (code_props_rule_action_init): Rename
+ named_ref arg to name so it doesn't shadow named_ref type. This
+ makes it consistent with the function definition in scan-code.l
+ anyway.
+
+2009-08-28 Joel E. Denny <jdenny@clemson.edu>
+
+ %define: accept unquoted values.
+ * NEWS (2.5): Group all %define changes together, and document
+ this one. Remove quotes in IELR and canonical LR entry.
+ * doc/bison.texinfo: Remove quotes in most examples throughout.
+ (Decl Summary): Update %define documentation.
+ (Table of Symbols): Likewise.
+ * src/ielr.c (LrType): Update documentation.
+ * src/parse-gram.y (content.opt): Add production for ID.
+ * tests/actions.at: Remove quotes in most tests.
+ * tests/calc.at: Likewise.
+ * tests/existing.at: Likewise.
+ * tests/input.at: Likewise.
+ * tests/local.at: Likewise.
+ * tests/push.at: Likewise.
+ * tests/reduce.at: Likewise.
+ * tests/torture.at: Likewise.
+
+2009-08-28 Joel E. Denny <jdenny@clemson.edu>
+
+ %define lr.type: make values lowercase IDs.
+ That is, "LALR" => "lalr", "IELR" => "ielr", and
+ "canonical LR" => "canonical-lr".
+ * NEWS (2.5): Update documentation.
+ * doc/bison.texinfo (Decl Summary): Likewise.
+ * src/ielr.c (ielr): Use new values.
+ * src/ielr.h (ielr): Update documentation.
+ * src/reader.c (prepare_percent_define_front_end_variables): Use
+ and validate new values.
+ * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
+ grammars.
+ * tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
+
+2009-08-27 Eric Blake <ebb9@byu.net>
+
+ scan-gram: avoid portability trap with ctype usage.
+ * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
+ Avoid compiler warning.
+
+2009-08-27 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: use perl for printing special sequences to files.
+ And skip tests if perl is not available. This is better than
+ playing tricks with shell portability. Suggested by Akim
+ Demaille.
+ * tests/input.at (Bad character literals): Use it here for
+ omitting final newlines.
+ (Bad escapes in literals): Use it here for special characters.
+
+2009-08-26 Joel E. Denny <jdenny@clemson.edu>
+
+ tests: show a use of %define lr.default-reductions "consistent"
+ * tests/conflicts.at (%nonassoc and eof): Extend to test that it
+ prevents the omission of expected tokens for %error-verbose.
+
+2009-08-26 Akim Demaille <demaille@gostai.com>
+
+ tests: portability fix.
+ * tests/input.at (Bad escapes in literals): Don't expect "echo
+ '\0'" to output \ then 0.
+
+2009-08-26 Joel E. Denny <jdenny@clemson.edu>
+
+ Actually handle the yytable zero value correctly this time.
+ * data/bison.m4 (b4_integral_parser_tables_map): Don't mention
+ zero values in the YYTABLE comments.
+ * data/glr.c (yytable_value_is_error): Don't check for zero
+ value.
+ * data/lalr1.cc (yy_table_value_is_error_): Likewise.
+ * data/yacc.c (yytable_value_is_error): Likewise.
+ * data/lalr1.java (yy_table_value_is_error_): Likewise.
+ (yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
+ * src/tables.h: In header comments, explain why it's useless to
+ check for a zero value in yytable.
+
+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ More fixes related to last two patches.
+ * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE
+ comments: zero indicates syntax error not default action.
+ * data/c.m4 (b4_table_value_equals): Comment that YYID must be
+ defined.
+ * data/glr.c (yyis_pact_ninf): Rename to...
+ (yypact_value_is_default): ... this.
+ (yyisDefaultedState): Update for rename.
+ (yyis_table_ninf): Rename to...
+ (yytable_value_is_error): ... this, and check for value zero
+ besides just YYTABLE_NINF.
+ (yygetLRActions): Check for default value from yypact. It
+ appears that this check is always performed before this function
+ is invoked, and so adding the check here is probably redundant.
+ However, the code may evolve after this subtlety is forgotten.
+ Also, update for rename to yytable_value_is_error. Because that
+ macro now checks for zero, a different but equivalent branch of
+ the if-then-else here is evaluated.
+ (yyreportSyntaxError): Update for rename to
+ yytable_value_is_error. The zero condition was mishandled
+ before.
+ (yyrecoverSyntaxError): Update for renames. No behavioral
+ changes.
+ * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
+ New function.
+ (yy_table_value_is_error_): New function.
+ (parse): Use new functions where possible. No behavioral
+ changes.
+ (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
+ The zero condition was mishandled before.
+ * data/yacc.c (yyis_pact_ninf): Rename to...
+ (yypact_value_is_default): ... this.
+ (yyis_table_ninf): Rename to...
+ (yytable_value_is_error): ... this, and check for value zero
+ besides just YYTABLE_NINF.
+ (yysyntax_error): Update for rename to yytable_value_is_error.
+ The zero condition was mishandled before.
+ (yyparse): Update for renames. No behavioral changes.
+ * src/tables.h: Improve comments about yypact, yytable, etc.
+ more. Most importantly, say yytable value of zero means syntax
+ error not default action.
+
+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix %error-verbose for conflicts resolved by %nonassoc.
+ * NEWS (2.5): Document.
+ * data/glr.c (yyreportSyntaxError): Fix this by checking
+ yyis_table_ninf.
+ * data/yacc.c (yysyntax_error): Likewise.
+ * data/lalr1.cc (yysyntax_error_): Fix this by checking
+ yytable_ninf_.
+ * data/lalr1.java (yysyntax_error): Likewise.
+ * tests/conflicts.at (%nonassoc and eof): Update expected output
+ and remove FIXME.
+
+2009-08-25 Joel E. Denny <jdenny@clemson.edu>
+
+ Some code and documentation improvements.
+ * data/c.m4 (b4_table_value_equals): New macro to capture
+ some repeated code.
+ * data/glr.c (yyis_pact_ninf): Use it here.
+ (yyis_table_ninf): Likewise.
+ (yyreportSyntaxError): Improve internal comments.
+ * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
+ Use it everywhere possible.
+ (yyis_table_ninf): Likewise.
+ (yysyntax_error): Improve internal comments.
+ * data/lalr1.cc (yysyntax_error_): Likewise.
+ * data/lalr1.java (yysyntax_error): Likewise.
+ * src/tables.h: Improve comments about yypact, yytable, etc.
+
+2009-08-21 Joel E. Denny <jdenny@clemson.edu>
+
+ Use locale when quoting.
+ * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
+ quote rather than implementing quoting here.
+
+2009-08-20 Eric Blake <ebb9@byu.net>
+
+ Make previous patch more robust.
+ * src/output.c (ARRAY_CARDINALITY): New macro, copied from
+ argmatch.h.
+ (output_skeleton): Use it.
+ Suggested by Akim Demaille.
+
+ Import latest m4/m4.m4.
+ * submodules/autoconf: Update to autoconf 2.64.
+ * configure.ac (M4_GNU_OPTION): New define.
+ * src/output.c (output_skeleton): Use it to resolve FIXME.
+ * NEWS: Mention this.
+
+2009-08-19 Joel E. Denny <jdenny@clemson.edu>
+
+ Fix complaints about escape sequences.
+ Discussed starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
+ * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
+ For a \0 and similar escape sequences meaning the null
+ character, report an invalid escape sequence instead of an
+ invalid null character because the latter does not actually
+ appear in the user's input.
+ In all escape sequence complaints, don't escape the initial
+ backslash, and don't quote when the sequence appears at the end
+ of the complaint line unless there's whitespace that quotearg
+ won't escape.
+ Consistently say "invalid" not "unrecognized".
+ Consistently prefer "empty character literal" over "extra
+ characters in character literal" warning for invalid escape
+ sequences; that is, consistently discard those sequences.
+ * tests/input.at (Bad escapes in literals): New.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ doc: fixes.
+ * doc/bison.texinfo: Fix minor Texinfo errors.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ tests: distcc compliance.
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): Discard distcc's
+ error messages from the output.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ variables: simplify the upgrade of namespace into api.namespace.
+
+ This patch simplifies "variables: rename namespace as
+ api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c.
+ Suggested by Joel E. Denny in
+ http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html
+
+ * src/muscle-tab.c (muscle_percent_variable_update): New.
+ (muscle_percent_define_insert): Use it in replacement of the
+ previous tr invocation.
+ Remove variable_tr, no longer needed.
+ * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
+ Remove.
+ * data/c++.m4: No longer handle namespace -> api.namespace.
+ * tests/input.at (%define backward compatibility): Check that
+ namespace is treated as api.namespace.
+
+2009-08-19 Akim Demaille <demaille@gostai.com>
+
+ doc: %initial-action to initialize yylloc.
+ Reported by Bill Allombert.
+ * doc/bison.texinfo: Set fill-column to 76.
+ (Location Type): Document the use of %initial-action to initialize
+ yylloc.
+
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