X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/1f68dca514c02f462a821484dfa605e41449d697..a02797656ed9675eaabfcf9114301f8c7cb45383:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
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--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,408 @@
+2010-04-05  Akim Demaille  <demaille@gostai.com>
+
+	graph: sign the output file.
+	* src/graphviz.c (start_graph): Issue comments about Bison.
+	Suggested by Tys Lefering.
+
+2010-03-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	portability: fix test suite for GCC 4.5's new #error message.
+	Reported by Tys Lefering at
+	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
+	* NEWS (2.4.3): Mention.
+	* tests/synclines.at (AT_TEST_SYNCLINE): Implement.
+
+2010-03-30  Akim Demaille  <demaille@gostai.com>
+
+	fix comments.
+	* src/graphviz.h: Add missing license notice.
+	Document.
+
+2010-03-25  Akim Demaille  <demaille@gostai.com>
+
+	tests: fix 250: parse.error=verbose overflow.
+	* tests/regression.at (parse.error=verbose overflow): Avoid the
+	double inclusion of stdlib.h as it triggers hard errors.
+
+2010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	portability: fix for BSD make.
+	Reported by Johan van Selst at
+	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
+	* tests/Makefile.am ($(TESTSUITE)): Qualify package.m4 in
+	this dependency list as in package.m4's target rule.
+
+2010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
+	Reported by Johan van Selst at
+	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
+	* NEWS (2.4.3): New.
+	* THANKS (Johan van Selst): Add.
+	* gnulib: Update to latest.
+
+2010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	maint: update for changes to gnulib's announce-gen.
+	* HACKING (Announce): RELEASE_TYPE=major must now be written
+	RELEASE_TYPE=stable.
+
+2010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	Version 2.4.2.
+	* NEWS (2.4.2): Set version and date.  For the recent test suite
+	portability fixes, don't be so optimistic about their success
+	given the lack of feedback on the affected platforms.
+
+2010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	tests: fix maintainer-xml-check for recent changes.
+	* tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
+	AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
+	output file whose name conflicts with a previous output file
+	is now never generated.
+
+2010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+	portability: fix several issues with M4 subprocess.
+
+	M4's output pipe was not being drained upon fatal errors during
+	scan_skel.  As a result, broken-pipe messages from M4 were seen
+	on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
+	failure in the test suite.  The problem was that, on platforms
+	where the default disposition for SIGPIPE is ignore instead of
+	terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
+	then reported it.  However, there's some sort of race condition,
+	because the new test group occasionally succeeded.
+	Reported by Albert Chin at
+	<http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
+
+	There were also problems with the test suite livelocking on
+	Tru64 5.1b.  Reported by Didier Godefroy at
+	<http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
+	Switching to create_pipe_bidi suggested by Akim Demaille.
+
+	To attempt to solve both of these problems, switch to gnulib's
+	create_pipe_bidi and register M4 process as a slave.  Along the
+	way, clean up file name conflict handling, which was affected by
+	the broken-pipe problem before the switch.
+	* NEWS (2.4.2): Document.
+	* THANKS (Didier Godefroy): Add.
+	* bootstrap.conf (gnulib_modules): Add pipe.
+	* gnulib: Update to latest to make sure we have all the latest
+	fixes.
+	* lib/Makefile.am (libbison_a_SOURCES): Remove subpipe.h and
+	subpipe.c.
+	* po/POTFILES.in (lib/subpipe.c): Remove.
+	* src/files.c (compute_output_file_names): Update invocations
+	of output_file_name_check.
+	(output_file_name_check): In the case that the grammar file
+	would be overwritten, use complain instead of fatal, but replace
+	the output file name with /dev/null.  Use the /dev/null solution
+	for the case of two conflicting output files as well because it
+	seems safer in case Bison one day tries to open both files at
+	the same time.
+	* src/files.h (output_file_name_check): Update prototype.
+	* src/output.c (output_skeleton): Use create_pipe_bidi and
+	wait_subprocess.  Assert that scan_skel completely drains the
+	pipe.
+	* src/scan-skel.l (at_directive_perform): Update
+	output_file_name_check invocation.
+	* tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
+	grammar file actually isn't overwritten.
+	(Conflicting output files: -o foo.y): Update expected output.
+	* tests/skeletons.at (Fatal errors but M4 continues producing
+	output): New test group.
+
+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.
+
+2010-01-21  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.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Propagate i18n changes into glr.c.
+	* data/glr.c (yyreportSyntaxError): Use "switch" instead of
+	building the error message format dynamically.
+	* data/lalr1.java: Formatting changes.
+
+2009-12-22  Joel E. Denny  <jdenny@clemson.edu>
+
+	Port small part of master's 11707b2b so future ports are easier.
+	* data/lalr1.java (YYParser::yysyntax_error): Untabify.
+
+2008-12-11  Akim Demaille  <demaille@gostai.com>
+
+	Simplify the i18n of the error messages.
+	* data/lalr1.cc: Comment changes.
+
+2008-11-11  Akim Demaille  <demaille@gostai.com>
+
+	Prefer M4 to CPP.
+	* data/lalr1.cc: Use b4_error_verbose_if instead of #if
+	YYERROR_VERBOSE.
+
+2008-11-11  Akim Demaille  <demaille@gostai.com>
+
+	Support i18n of the parse error messages.
+	* TODO (lalr1.cc/I18n): Remove.
+	* data/lalr1.cc (yysyntax_error_): Support the translation of the
+	error messages, as done in yacc.c.
+	Stay within the yy* pseudo namespace.
+
+2009-12-22  Joel E. Denny  <jdenny@clemson.edu>
+
+	Port small part of master's 8901f32e so future ports are easier.
+	* data/lalr1.cc (yy::parser::yysyntax_error_): Always add second
+	argument, but name it in the function definition only when
+	verbose error messages are enabled and it'll thus be used.
+	(yy::parser::parse): Update use of yysyntax_error_.
+
+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 (%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.
+
+2009-12-17  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.
+
+2009-12-14  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.
@@ -5418,9 +5823,12 @@
 
 2006-09-15  Bob Rossi  <bob@brasko.net>
 
+	Add support for push parsing.  Based on the original work of
+	Odd Arild Olsen <oao@fibula.no>.
 	* data/Makefile.am (dist_pkgdata_DATA): Add push.c.
 	* data/c.m4 (YYPUSH): New.
 	(b4_push_if): New macro.  Use it instead of #ifdef YYPUSH.
+	* data/push.c: New file.
 	* src/getargs.c (push_parser): New var.
 	* src/getargs.h (push_parser): New declaration.
 	* src/output.c (prepare): Add macro insertion of `push_flag'.
@@ -22593,9 +23001,8 @@
 
 	-----
 
-	Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
-	1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-	2007, 2008, 2009 Free Software Foundation, Inc.
+	Copyright (C) 1987-1988, 1991-2010 Free Software Foundation,
+	Inc.
 
 	Copying and distribution of this file, with or without
 	modification, are permitted provided the copyright notice and this