version 2.6

* NEWS: Record release date.

.cvsignore

@@ -1,31 +0,0 @@
-*.cache
-*.flc
-*.prj
-*~
-.tarball-version
-.version
-ABOUT-NLS
-COPYING
-GNUmakefile
-INSTALL
-Makefile
-Makefile.in
-_*
-a.exe
-a.out
-aclocal.m4
-b.out
-bison-*
-conf[0-9]*
-confdefs*
-config.log
-config.status
-configure
-configure.lineno
-conftest*
-gnulib
-javacomp.sh
-javaexec.sh
-patches
-releases
-stamp-h*

.gitattributes

@@ -1 +1 @@
-ChangeLog merge=merge-changelog
+

.gitignore

@@ -6,6 +6,7 @@
 /.version
 /ABOUT-NLS
 /COPYING
+/ChangeLog
 /GNUmakefile
 /INSTALL
 /Makefile
@@ -26,6 +27,8 @@
 /gnulib
 /javacomp.sh
 /javaexec.sh
+/maint.mk
 /patches
 /releases
 /stamp-h*
+/README-release

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "gnulib"]
 	path = gnulib
 	url = git://git.savannah.gnu.org/gnulib.git
+[submodule "submodules/autoconf"]
+	path = submodules/autoconf
+	url = git://git.sv.gnu.org/autoconf.git

.prev-version

@@ -1 +1 @@
-2.3b
+2.5.91

.x-update-copyright

@@ -0,0 +1,6 @@
+COPYING
+^bootstrap$
+^doc/fdl\.texi$
+^doc/gpl-3\.0\.texi$
+^doc/yacc\.1\.in$
+^src/parse-gram\.h$

AUTHORS

@@ -5,4 +5,38 @@ Bison was written primarily by Robert Corbett.
 Richard Stallman made it Yacc-compatible.
 
 Wilfred Hansen of Carnegie Mellon University added multicharacter
-string literals and other features.
+string literals and other features (Bison 1.25, 1995).
+
+Akim Demaille rewrote the parser in Bison, and changed the back end to
+use M4 (1.50, 2002).
+
+Paul Hilfinger added GLR support (Bison 1.50, 2002).
+
+Joel E. Denny contributed canonical-LR support, and invented and added
+IELR and LAC (Lookahead Correction) support (Bison 2.5, 2011).
+
+Paolo Bonzini contributed Java support (Bison 2.4, 2008).
+
+Alex Rozenman added named reference support (Bison 2.5, 2011).
+
+Paul Eggert fixed a million portability issues, arbitrary limitations,
+and nasty bugs.
+
+-----
+
+Copyright (C) 1998-2012 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+This program 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 3 of the License, or
+(at your option) any later version.
+
+This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

ChangeLog-1998

@@ -140,7 +140,7 @@
 1996-05-12  Jim Meyering  <[email protected]>
 
 	* src/bison.simple (__yy_memcpy) [__cplusplus]: Reorder declarations
- 	of variables f and t.
+	of variables f and t.
 
 1996-05-11  Richard Stallman  <[email protected]>
 

HACKING

@@ -1,213 +0,0 @@
--*- outline -*-
-
-This file attempts to describe the rules to use when hacking Bison.
-Don't put this file into the distribution.
-
-Everything related to the development of Bison is on Savannah:
-
-	http://savannah.gnu.org/projects/bison/
-
-
-* Administrivia
-
-** If you incorporate a change from somebody on the net:
-First, if it is a large change, you must make sure they have signed
-the appropriate paperwork.  Second, be sure to add their name and
-email address to THANKS.
-
-** If a change fixes a test, mention the test in the ChangeLog entry.
-
-** Bug reports
-If somebody reports a new bug, mention his name in the ChangeLog entry
-and in the test case you write.  Put him into THANKS.
-
-The correct response to most actual bugs is to write a new test case
-which demonstrates the bug.  Then fix the bug, re-run the test suite,
-and check everything in.
-
-** You may find it useful to install the git-merge-changelog merge driver:
-
-  http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/git-merge-changelog.c
-
-When following the generic installation instructions there, keep in mind that
-your clone of Bison's git repository already contains appropriate
-.gitattributes files, and running Bison's bootstrap script will make the
-necessary changes to .git/config.
-
-
-* Hacking
-
-** Visible changes
-Which include serious bug fixes, must be mentioned in NEWS.
-
-** Translations
-Only user visible strings are to be translated: error messages, bits
-of the .output file etc.  This excludes impossible error messages
-(comparable to assert/abort), and all the --trace output which is
-meant for the maintainers only.
-
-
-* Test suite
-
-** make check
-Use liberally.
-
-** Release checks
-Try to run the test suite with more severe conditions before a
-release:
-
-- Configure the package with --enable-gcc-warnings, so that one checks
-  that 1. Bison compiles cleanly, 2. the parsers it produces compile
-  cleanly too.
-
-- run `make maintainer-check' which:
-  - runs `valgrind -q bison' to run Bison under Valgrind.
-  - runs the parsers under Valgrind.
-  - runs the test suite with G++ as C compiler...
-
-- run `make maintainer-push-check', which runs `make maintainer-check'
-  while activating the push implementation and its pull interface wrappers
-  in many test cases that were originally written to exercise only the
-  pull implementation.  This makes certain the push implementation can
-  perform every task the pull implementation can.
-
-- run `make maintainer-xml-check', which runs `make maintainer-check'
-  while checking Bison's XML automaton report for every working grammar
-  passed to Bison in the test suite.  The check just diffs the output of
-  Bison's included XSLT style sheets with the output of --report=all and
-  --graph.
-
-- Change tests/atlocal/CFLAGS to add your preferred options.  For
-  instance, `-traditional' to check that the parsers are K&R.  Note
-  that it does not make sense for glr.c, which should be ANSI,
-  but currently is actually GNU C, nor for lalr1.cc.
-
-
-* Release Procedure
-
-** Try to get the *.pot files to the Translation Project at least one week
-before a stable release, to give them time to translate them.
-
-** Tests
-See above.
-
-** Update the foreign files
-Running `./bootstrap' in the top level should update them all for you.
-This covers PO files too.  Sometimes a PO file contains problems that
-causes it to be rejected by recent Gettext releases; please report
-these to the Translation Project.
-
-** Update README
-Make sure the information in this file is current.  Most notably, make sure it
-recommends a version of GNU M4 that is compatible with the latest Bison
-sources.
-
-** Update NEWS
-The version number, *and* the date of the release (including for
-betas).
-
-** Update ChangeLog
-Should have an entry similar to `Version 1.49b.'.
-
-** Update configure.ac
-Be sure PACKAGE_COPYRIGHT_YEAR is up-to-date.
-
-** Tag the release
-Before Bison will build with the right version number, you must tag the release
-in git.  Do this after all other changes.  The command is similar to:
-
-  git tag -a v2.3b
-
-The log message can be simply:
-
-  Bison 2.3b
-
-** Push
-Once `make distcheck' passes, push your changes and the tag.
-`git push' without arguments will not push the tag.
-
-** make alpha
-FIXME: `make alpha' is not maintained and is broken.  These
-instructions need to be replaced or removed.
-
-Running `make alpha' is absolutely perfect for beta releases: it makes
-the tarballs, the xdeltas, and prepares (in /tmp/) a proto
-announcement.  It is so neat, that that's what I use anyway for
-genuine releases, but adjusting things by hand (e.g., the urls in the
-announcement file, the ChangeLog which is not needed etc.).
-
-If it fails, you're on your own...
-
-It requires GNU Make.
-
-** Upload
-The generic GNU upload procedure is at:
-
-  http://www.gnu.org/prep/maintain/maintain.html#Automated-FTP-Uploads
-
-After following the instructions there to register your information so you're
-permitted to upload, here's a brief reminder of how to roll the tarballs and
-upload them:
-
-*** make distcheck
-*** gpg -b bison-2.3b.tar.gz
-*** In a file named `bison-2.3b.tar.gz.directive', type:
-
-      version: 1.1
-      directory: bison
-      filename: bison-2.3b.tar.gz
-
-*** gpg --clearsign bison-2.3b.tar.gz.directive
-*** ftp ftp-upload.gnu.org # Log in as anonymous.
-*** cd /incoming/alpha # cd /incoming/ftp for full release.
-*** put bison-2.3b.tar.gz # This can take a while.
-*** put bison-2.3b.tar.gz.sig
-*** put bison-2.3b.tar.gz.directive.asc
-*** Repeat all these steps for bison-2.3b.tar.bz2.
-
-** Announce
-To generate a template announcement file:
-
-  make RELEASE_TYPE=alpha gpg_key_ID=F125BDF3 announcement
-
-where alpha can be replaced by beta or major and F125BDF3 should be replaced
-with your key ID.  For an example of how to fill out the template, search the
-mailing list archives for the most recent release announcement.
-
-Complete/fix the announcement file, and send it at least to
-[email protected] (if a real release, or a ``serious beta''),
-[email protected], [email protected], [email protected],
-and [email protected].
-
-Send the same announcement on the comp.compilers newsgroup by sending
-email to [email protected].  Do not make any Cc as the moderator will
-throw away anything cross-posted or Cc'ed.  It really needs to be a
-separate message.
-
-** Bump the version number
-In configure.ac.  Run `make'.  So that developers don't accidentally add new
-items to the old NEWS entry, create a new empty NEWS entry something like:
-
-  Changes in version ?.? (????-??-??):
-
-Push these changes.
-
-
------
-
-Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
-
-This file is part of GNU Bison.
-
-This program 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 3 of the License, or
-(at your option) any later version.
-
-This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

Makefile.am

@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
-## Foundation, Inc.
+
+## Copyright (C) 2001-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,25 +23,21 @@ SUBDIRS = build-aux po runtime-po lib data src doc examples tests etc
 aclocaldir = @aclocaldir@
 aclocal_DATA = m4/bison-i18n.m4
 
-EXTRA_DIST = .prev-version .version cfg.mk maint.mk \
-  OChangeLog PACKAGING \
+EXTRA_DIST = .prev-version .version \
+  cfg.mk ChangeLog-1998 ChangeLog-2012 PACKAGING \
   djgpp/Makefile.maint djgpp/README.in djgpp/config.bat \
   djgpp/config.sed djgpp/config.site djgpp/config_h.sed \
   djgpp/subpipe.c djgpp/subpipe.h djgpp/djunpack.bat \
   djgpp/fnchange.lst djgpp/testsuite.sed
 
-
-.PHONY: maintainer-check
-maintainer-check:
-	cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
-
-.PHONY: maintainer-push-check
-maintainer-push-check:
-	cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
-
-.PHONY: maintainer-xml-check
-maintainer-xml-check:
-	cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
+MAINTAINER_CHECKS =				\
+  maintainer-check				\
+  maintainer-push-check				\
+  maintainer-xml-check				\
+  maintainer-release-check
+.PHONY: $(MAINTAINER_CHECKS)
+$(MAINTAINER_CHECKS):
+	$(AM_V_GEN)cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
 
 # See comments in build-aux/git-version-gen.  However, we make .version depend
 # on configure so that .version and VERSION/PACKAGE_VERSION stay in sync in the
@@ -54,6 +50,31 @@ maintainer-xml-check:
 # pass incorrectly.
 BUILT_SOURCES = $(top_srcdir)/.version
 $(top_srcdir)/.version: configure
-	echo $(VERSION) > $@-t && mv $@-t $@
-dist-hook:
-	echo $(VERSION) > $(distdir)/.tarball-version
+	$(AM_V_GEN)echo $(VERSION) > $@-t && mv $@-t $@
+dist-hook: gen-ChangeLog
+	$(AM_V_GEN)echo $(VERSION) > $(distdir)/.tarball-version
+
+.PHONY: update-b4-copyright update-package-copyright-year
+update-b4-copyright:
+	$(AM_V_GEN) find data -type f		\
+	  | grep -v -E '^data/bison.m4$$'	\
+	  | xargs $(build_aux)/$@
+	@echo 'warning: src/parse-gram.[hc] may need to be regenerated.'
+update-package-copyright-year:
+	$(AM_V_GEN)$(build_aux)/$@ configure.ac
+
+gen_start_date = 2012-01-16
+.PHONY: gen-ChangeLog
+gen-ChangeLog:
+	$(AM_V_GEN)if test -d $(srcdir)/.git; then	\
+	  cl=$(distdir)/ChangeLog &&			\
+	  rm -f $$cl.tmp &&				\
+	  $(top_srcdir)/build-aux/gitlog-to-changelog	\
+	    --strip-tab					\
+	    --strip-cherry-pick				\
+	    --no-cluster				\
+	    --amend=$(srcdir)/build-aux/git-log-fix	\
+	    --srcdir=$(srcdir)				\
+	    --since=$(gen_start_date) > $$cl.tmp &&	\
+	  mv -f $$cl.tmp $$cl;				\
+	fi

PACKAGING

@@ -36,7 +36,7 @@ to the bison package.
 
 -----
 
-Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+Copyright (C) 2002, 2005, 2009-2012 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

README

@@ -1,31 +1,51 @@
 This package contains the GNU Bison parser generator.
 
-See the file INSTALL for generic compilation and installation instructions.
+* Installation
+** Build
+See the file INSTALL for generic compilation and installation
+instructions.
 
+Bison requires GNU m4 1.4.6 or later.  See:
+
+      ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz
+
+** Internationalization
+Bison supports two catalogues: one for Bison itself (i.e., for the
+maintainer-side parser generation), and one for the generated parsers
+(i.e., for the user-side parser execution).  The requirements between
+both differ: bison needs ngettext, the generated parsers do not.  To
+simplify the build system, neither are installed if ngettext is not
+supported, even if generated parsers could have been localized.  See
+http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html for
+more details.
+
+* Questions
 See the section FAQ in the documentation (doc/bison.info) for
 frequently asked questions.  The documentation is also available in
 PDF and HTML, provided you have a recent version of Texinfo installed:
 run "make pdf" or "make html".
 
-Bison requires GNU m4 1.4.6 or later.  See:
-
-ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz
-
-Bison can work with pre-1.4.6 distributions of GNU m4 if they are
-sufficiently patched, but if you encounter a bug with an older
-distribution and report a bug we will probably suggest that you
-upgrade to 1.4.6 as the first step in trying to fix it.
+If you have questions about using Bison and the documentation does
+not answer them, please send mail to <[email protected]>.
 
+* Bug reports
 Please send bug reports to <[email protected]>.  Please include the
 version number from `bison --version', and a complete, self-contained
 test case in each bug report.
 
-If you have questions about using Bison and the documentation does
-not answer them, please send mail to <[email protected]>.
+* Copyright statements
+For any copyright year range specified as YYYY-ZZZZ in this package,
+note that the range specifies every single year in that closed interval.
+
+
+Local Variables:
+mode: outline
+End:
 
 -----
 
-Copyright (C) 1992, 1998, 1999, 2003, 2004, 2005, 2008 Free Software Foundation, Inc.
+Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2012 Free Software
+Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

README-alpha

@@ -12,7 +12,7 @@ the problems you encounter.
 
 -----
 
-Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+Copyright (C) 2002, 2004, 2009-2012 Free Software Foundation, Inc.
 
 This file is part of GNU Bison.
 

README-hacking

@@ -1,9 +1,47 @@
--*- outline -*-
+This file attempts to describe the rules to use when hacking Bison.
+Don't put this file into the distribution.
+
+Everything related to the development of Bison is on Savannah:
+
+        http://savannah.gnu.org/projects/bison/
+
+
+* Administrivia
+
+** If you incorporate a change from somebody on the net:
+First, if it is a large change, you must make sure they have signed
+the appropriate paperwork.  Second, be sure to add their name and
+email address to THANKS.
+
+** If a change fixes a test, mention the test in the commit message.
+
+** Bug reports
+If somebody reports a new bug, mention his name in the commit message
+and in the test case you write.  Put him into THANKS.
+
+The correct response to most actual bugs is to write a new test case
+which demonstrates the bug.  Then fix the bug, re-run the test suite,
+and check everything in.
+
+
+* Hacking
+
+** Visible changes
+Which include serious bug fixes, must be mentioned in NEWS.
+
+** Translations
+Only user visible strings are to be translated: error messages, bits
+of the .output file etc.  This excludes impossible error messages
+(comparable to assert/abort), and all the --trace output which is
+meant for the maintainers only.
+
+
+* Working from the repository
 
 These notes intend to help people working on the checked-out sources.
 These requirements do not apply when building from a distribution tarball.
 
-* Requirements
+** Requirements
 
 We've opted to keep only the highest-level sources in the repository.
 This eases our maintenance burden, (fewer merges etc.), but imposes more
@@ -20,8 +58,8 @@ tools we depend upon, including:
 - Rsync <http://samba.anu.edu.au/rsync/>
 - Tar <http://www.gnu.org/software/tar/>
 
-Valgrind <http://valgrind.org/> is also highly recommended, if
-Valgrind supports your architecture.
+Valgrind <http://valgrind.org/> is also highly recommended, if it supports
+your architecture.
 
 Bison is written using Bison grammars, so there are bootstrapping
 issues.  The bootstrap script attempts to discover when the C code
@@ -30,41 +68,335 @@ out-of-date version of the C code, but the process is not foolproof.
 Also, you may run into similar problems yourself if you modify Bison.
 
 Only building the initial full source tree will be a bit painful.
-Later, after synchronizing from the repository a plain `make' should
-be sufficient.
+Later, after synchronizing from the repository a plain 'make' should
+be sufficient.  Note, however, that when gnulib is updated, running
+'./bootstrap' again might be needed.
 
-* First checkout
+** First checkout
 
 Obviously, if you are reading these notes, you did manage to check out
 this package from the repository.  For the record, you will find all the
 relevant information on:
 
-	http://savannah.gnu.org/cvs/?group_id=56
+        http://savannah.gnu.org/git/?group=bison
+
+Bison uses Git submodules: subscriptions to other Git repositories.
+In particular it uses gnulib, the GNU portability library.  To ask Git
+to perform the first checkout of the submodules, run
+
+       $ git submodule update --init
+
+Git submodule support is weak before versions 1.6 and later, you
+should probably upgrade Git if your version is older.
 
 The next step is to get other files needed to build, which are
 extracted from other source packages:
 
-	$ ./bootstrap
+        $ ./bootstrap
 
 And there you are!  Just
 
-	$ ./configure
-	$ make
-	$ make check
+        $ ./configure
+        $ make
+        $ make check
 
 At this point, there should be no difference between your local copy,
 and the master copy:
 
-	$ cvs diff
+        $ git diff
 
 should output no difference.
 
 Enjoy!
 
+** Updating
+
+The use of submodules make things somewhat different because git does
+not support recursive operations: submodules must be taken care of
+explicitly by the user.
+
+*** Updating Bison
+
+If you pull a newer version of a branch, say via "git pull", you might
+import requests for updated submodules.  A simple "git diff" will
+reveal if the current version of the submodule (i.e., the actual
+contents of the gnulib directory) and the current request from the
+subscriber (i.e., the reference of the version of gnulib that the
+Bison repository requests) differ.  To upgrade the submodules (i.e.,
+to check out the version that is actually requested by the subscriber,
+run "git submodule update".
+
+        $ git pull
+        $ git submodule update
+
+*** Updating a submodule
+To update a submodule, say gnulib, do as follows:
+
+Get the most recent version of the master branch from git.
+
+        $ cd gnulib
+        $ git fetch
+        $ git checkout -b master --track origin/master
+
+Make sure Bison can live with that version of gnulib.
+
+        $ cd ..
+        $ ./bootstrap
+        $ make distcheck
+
+Register your changes.
+
+        $ git checkin ...
+
+For a suggestion of what gnulib commit might be stable enough for a
+formal release, see the ChangeLog in the latest gnulib snapshot at:
+
+        http://erislabs.net/ianb/projects/gnulib/
+
+The Autoconf files we use are currently:
+
+        m4/m4.m4
+        lib/m4sugar/m4sugar.m4
+        lib/m4sugar/foreach.m4
+
+These files don't change very often in Autoconf, so it should be
+relatively straight-forward to examine the differences in order to
+decide whether to update.
+
+* Test suite
+
+** make check
+Use liberally.
+
+** make maintainer-check-valgrind
+This target uses valgrind both to check bison, and the generated parsers.
+
+This is not mature on Mac OS X.  First, Valgrind does support the way bison
+calls m4, so Valgrind cannot be used to check bison on Mac OS X.
+
+Second, there are many errors that come from the platform itself, not from
+bison.  build-aux/darwin11.4.0.valgrind addresses some of them.
+
+Third, valgrind issues warnings such as:
+
+  --99312:0:syswrap- WARNING: Ignoring sigreturn( ..., UC_RESET_ALT_STACK );
+
+which cause the test to fail uselessly.  It is hard to ignore these errors
+with a major overhaul of the way instrumentation is performed in the test
+suite.  So currently, do not try to run valgrind on Mac OS X.
+
+** Release checks
+Try to run the test suite with more severe conditions before a
+release:
+
+- Configure the package with --enable-gcc-warnings, so that one checks
+  that 1. Bison compiles cleanly, 2. the parsers it produces compile
+  cleanly too.
+
+- Maybe build with -DGNULIB_POSIXCHECK, which suggests gnulib modules
+  that can fix portability issues.  See if you really want to pay
+  attention to its warnings; there's no need to obey blindly to it
+  (<http://lists.gnu.org/archive/html/bison-patches/2012-05/msg00057.html>).
+
+- Check with "make syntax-check" if there are issues diagnosed by
+  gnulib.
+
+- run "make maintainer-check" which:
+  - runs "valgrind -q bison" to run Bison under Valgrind.
+  - runs the parsers under Valgrind.
+  - runs the test suite with G++ as C compiler...
+
+- run "make maintainer-push-check", which runs "make maintainer-check"
+  while activating the push implementation and its pull interface wrappers
+  in many test cases that were originally written to exercise only the
+  pull implementation.  This makes certain the push implementation can
+  perform every task the pull implementation can.
+
+- run "make maintainer-xml-check", which runs "make maintainer-check"
+  while checking Bison's XML automaton report for every working grammar
+  passed to Bison in the test suite.  The check just diffs the output of
+  Bison's included XSLT style sheets with the output of --report=all and
+  --graph.
+
+- running "make maintainer-release-check" takes care of running
+  maintainer-check, maintainer-push-check and maintainer-xml-check.
+
+- Change tests/atlocal/CFLAGS to add your preferred options.  For
+  instance, "-traditional" to check that the parsers are K&R.  Note
+  that it does not make sense for glr.c, which should be ANSI, but
+  currently is actually GNU C, nor for lalr1.cc.
+
+
+* Release Procedure
+This section needs to be updated to take into account features from
+gnulib.  In particular, be sure to read README-release.
+
+** Update the submodules.  See above.
+
+** Update maintainer tools, such as Autoconf.  See above.
+
+** Try to get the *.pot files to the Translation Project at least one
+week before a stable release, to give them time to translate them.
+Before generating the *.pot files, make sure that po/POTFILES.in and
+runtime-po/POTFILES.in list all files with translatable strings.
+This helps: grep -l '\<_(' *
+
+** Tests
+See above.
+
+** Update the foreign files
+Running "./bootstrap" in the top level should update them all for you.
+This covers PO files too.  Sometimes a PO file contains problems that
+causes it to be rejected by recent Gettext releases; please report
+these to the Translation Project.
+
+** Update README
+Make sure the information in README is current.  Most notably, make sure
+it recommends a version of GNU M4 that is compatible with the latest
+Bison sources.
+
+** Check copyright years.
+We update years in copyright statements throughout Bison once at the
+start of every year by running "make update-copyright".  However, before
+a release, it's good to verify that it's actually been run.  Besides the
+copyright statement for each Bison file, check the copyright statements
+that the skeletons insert into generated parsers, and check all
+occurrences of PACKAGE_COPYRIGHT_YEAR in configure.ac.
+
+** Update NEWS, commit and tag.
+See do-release-commit-and-tag in README-release.  For a while, we used
+beta names such as "2.6_rc1".  Now that we use gnulib in the release
+procedure, we must use "2.5.90", which has the additional benefit of
+being properly sorted in "git tag -l".
+
+** make alpha, beta, or stable
+See README-release.
+
+** Upload
+There are two ways to upload the tarballs to the GNU servers: using
+gnupload (from gnulib), or by hand.  Obviously prefer the former.  But
+in either case, be sure to read the following paragraph.
+
+*** Setup
+You need "gnupg".
+
+Make sure your public key has been uploaded at least to
+keys.gnupg.net.  You can upload it with:
+
+  gpg --keyserver keys.gnupg.net --send-keys F125BDF3
+
+where F125BDF3 should be replaced with your key ID.
+
+*** Using gnupload
+You need "ncftp".
+
+At the end "make stable" (or alpha/beta) will display the procedure to
+run.  Just copy and paste it in your shell.
+
+*** By hand
+
+The generic GNU upload procedure is at:
+
+  http://www.gnu.org/prep/maintain/maintain.html#Automated-FTP-Uploads
+
+Follow the instructions there to register your information so you're permitted
+to upload.
+
+Here's a brief reminder of how to roll the tarballs and upload them:
+
+*** make distcheck
+*** gpg -b bison-2.3b.tar.gz
+*** In a file named "bison-2.3b.tar.gz.directive", type:
+
+      version: 1.1
+      directory: bison
+      filename: bison-2.3b.tar.gz
+
+*** gpg --clearsign bison-2.3b.tar.gz.directive
+*** ftp ftp-upload.gnu.org # Log in as anonymous.
+*** cd /incoming/alpha # cd /incoming/ftp for full release.
+*** put bison-2.3b.tar.gz # This can take a while.
+*** put bison-2.3b.tar.gz.sig
+*** put bison-2.3b.tar.gz.directive.asc
+*** Repeat all these steps for bison-2.3b.tar.xz.
+
+** Update Bison manual on www.gnu.org.
+
+*** You need a non-anonymous checkout of the web pages directory.
+
+  $ cvs -d [email protected]:/web/bison checkout bison
+
+*** Get familiar with the instructions for web page maintainers.
+http://www.gnu.org/server/standards/readme_index.html
+http://www.gnu.org/server/standards/README.software.html
+especially the note about symlinks.
+
+*** Build the web pages.
+Assuming BISON_CHECKOUT refers to a checkout of the Bison dir, and
+BISON_WWW_CHECKOUT refers to the web directory created above, do:
+
+  $ cd $BISON_CHECKOUT/doc
+  $ make stamp-vti
+  $ ../build-aux/gendocs.sh -o "$BISON_WWW_CHECKOUT/manual" \
+    bison "Bison - GNU parser generator"
+  $ cd $BISON_WWW_CHECKOUT
+
+Verify that the result looks sane.
+
+*** Commit the modified and the new files.
+
+*** Remove old files.
+Find the files which have not been overwritten (because they belonged to
+sections that have been removed or renamed):
+
+   $ cd manual/html_node
+   $ ls -lt
+
+Remove these files and commit their removal to CVS.  For each of these
+files, add a line to the file .symlinks.  This will ensure that
+hyperlinks to the removed files will redirect to the entire manual; this
+is better than a 404 error.
+
+There is a problem with 'index.html' being written twice (once for POSIX
+function 'index', once for the table of contents); you can ignore this
+issue.
+
+** Announce
+The "make stable" (or alpha/beta) command just created a template,
+$HOME/announce-bison-X.Y.  Otherwise, to generate it, run:
+
+  make RELEASE_TYPE=alpha gpg_key_ID=F125BDF3 announcement
+
+where alpha can be replaced by beta or stable and F125BDF3 should be
+replaced with your key ID.
+
+Complete/fix the announcement file.  The generated list of recipients
+([email protected], [email protected], [email protected],
+[email protected], and [email protected]) is
+appropriate for a stable release or a "serious beta".  For any other
+release, drop at least [email protected].  For an example of how to
+fill out the rest of the template, search the mailing list archives
+for the most recent release announcement.
+
+For a stable release, send the same announcement on the comp.compilers
+newsgroup by sending email to [email protected].  Do not make any Cc as
+the moderator will throw away anything cross-posted or Cc'ed.  It really
+needs to be a separate message.
+
+** Prepare NEWS
+So that developers don't accidentally add new items to the old NEWS
+entry, create a new empty entry in line 3 (without the two leading
+spaces):
+
+  * Noteworthy changes in release ?.? (????-??-??) [?]
+
+Push these changes.
+
 -----
 
-Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software
-Foundation, Inc.
+Copyright (C) 2002-2005, 2007-2012 Free Software Foundation, Inc.
+
+This file is part of GNU Bison.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -78,3 +410,14 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+ LocalWords:  Automake Autoconf Gettext Gzip Rsync Valgrind gnulib submodules
+ LocalWords:  submodule init cd distcheck checkin ChangeLog valgrind sigreturn
+ LocalWords:  UC gcc DGNULIB POSIXCHECK xml XSLT glr lalr README po runtime rc
+ LocalWords:  gnupload gnupg gpg keyserver BDF ncftp filename clearsign cvs dir
+ LocalWords:  symlinks vti html lt POSIX Cc'ed
+
+Local Variables:
+mode: outline
+fill-column: 76
+End:

THANKS

@@ -8,12 +8,15 @@ Alexander Belopolsky      [email protected]
 Alexandre Duret-Lutz      [email protected]
 Andreas Schwab            [email protected]
 Andrew Suffield           [email protected]
+Angelo Borsotti           [email protected]
 Anthony Heading           [email protected]
 Arnold Robbins            [email protected]
 Art Haas                  [email protected]
 Baron Schwartz            [email protected]
 Benoit Perrot             [email protected]
+Bernd Kiefer              [email protected]
 Bert Deknuydt             [email protected]
+Bill Allombert            [email protected]
 Bob Rossi                 [email protected]
 Brandon Lucia             [email protected]
 Bruce Lilly               [email protected]
@@ -23,11 +26,14 @@ Christian Burger          [email protected]
 Cris Bailiff              [email protected]
 Cris van Pelt             [email protected]
 Csaba Raduly              [email protected]
+Dagobert Michelsen        [email protected]
 Daniel Hagerty            [email protected]
 David J. MacKenzie        [email protected]
+David Kastrup             [email protected]
 Derek M. Jones            [email protected]
 Di-an Jan                 [email protected]
 Dick Streefland           [email protected]
+Didier Godefroy           [email protected]
 Enrico Scholz             [email protected]
 Eric Blake                [email protected]
 Evgeny Stambulchik        [email protected]
@@ -36,26 +42,34 @@ Florian Krohm             [email protected]
 Frank Heckenbach          [email protected]
 Frans Englich             [email protected]
 Georg Sauthoff            [email protected]
+George Neuner             [email protected]
+Gilles Espinasse          [email protected]
 Goran Uddeborg            [email protected]
 Guido Trentalancia        [email protected]
 H. Merijn Brand           [email protected]
 Hans Aberg                [email protected]
 Jan Nieuwenhuizen         [email protected]
+Jerry Quinn               [email protected]
 Jesse Thilo               [email protected]
 Jim Kent                  [email protected]
 Jim Meyering              [email protected]
-Joel E. Denny             jdenny@ces.clemson.edu
+Joel E. Denny             joeldenny@joeldenny.org
+Johan van Selst           [email protected]
+Jonathan Nieder           [email protected]
 Juan Manuel Guerrero      [email protected]
 Kees Zeelenberg           [email protected]
 Keith Browne              [email protected]
 Laurent Mascherpa         [email protected]
+Lie Yan                   [email protected]
 Magnus Fromreide          [email protected]
 Marc Autret               [email protected]
+Martin Jacobs             [email protected]
 Martin Mokrejs            [email protected]
 Martin Nylin              [email protected]
 Matt Kraai                [email protected]
 Matt Rosing               [email protected]
 Michael Hayes             [email protected]
+Michael Raskin            [email protected]
 Mickael Labau             [email protected]
 Mike Castle               [email protected]
 Neil Booth                [email protected]
@@ -63,6 +77,7 @@ Nelson H. F. Beebe        [email protected]
 Nicolas Burrus            [email protected]
 Nicolas Tisserand         [email protected]
 Noah Friedman             [email protected]
+Odd Arild Olsen           [email protected]
 Oleg Smolsky              [email protected]
 Paolo Bonzini             [email protected]
 Pascal Bart               [email protected]
@@ -75,23 +90,31 @@ Piotr Gackiewicz          [email protected]
 Quoc Peyrot               [email protected]
 R Blake                   [email protected]
 Raja R Harinath           [email protected]
+Ralf Wildenhues           [email protected]
 Richard Stallman          [email protected]
 Robert Anisko             [email protected]
 Satya Kiran Popuri        [email protected]
-Sebastien Fricker         [email protected]
 Sebastian Setzer          [email protected]
+Sebastien Fricker         [email protected]
 Sergei Steshenko          [email protected]
 Shura                     [email protected]
+Stefano Lattarini         [email protected]
 Steve Murphy              [email protected]
+Summum Bonum              [email protected]
+Thiru Ramakrishnan        [email protected]
 Tim Josling               [email protected]
+Tim Landscheidt           [email protected]
 Tim Van Holder            [email protected]
 Tom Lane                  [email protected]
 Tom Tromey                [email protected]
 Tommy Nordgren            [email protected]
 Troy A. Johnson           [email protected]
-Tys Lefering              [email protected]
+Tys Lefering              [email protected]
 Vin Shelton               [email protected]
+W.C.A. Wijngaards         [email protected]
 Wayne Green               [email protected]
+Wei Song                  [email protected]
+Wolfgang S. Kechel        [email protected]
 Wolfram Wagner            [email protected]
 Wwp                       [email protected]
 Zack Weinberg             [email protected]
@@ -102,3 +125,22 @@ thank them!  Please, help us keeping this list up to date.
 Local Variables:
 mode: text
 End:
+
+-----
+
+Copyright (C) 2000-2012 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Parser Generator.
+
+This program 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 3 of the License, or
+(at your option) any later version.
+
+This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

TODO

@@ -1,32 +1,140 @@
--*- outline -*-
+* Short term
+** Variable names.
+What should we name `variant' and `lex_symbol'?
 
-* Header guards
+** Use b4_symbol in all the skeleton
+Move its definition in the more standard places and deploy it in other
+skeletons.  Then remove the older system, including the tables
+generated by output.c
 
-From Franc,ois: should we keep the directory part in the CPP guard?
+** Update the documentation on gnu.org
+
+** Get rid of fake #lines [Bison: ...]
+Possibly as simple as checking whether the column number is nonnegative.
+
+I have seen messages like the following from GCC.
+
+<built-in>:0: fatal error: opening dependency file .deps/libltdl/argz.Tpo: No such file or directory
 
 
-* Yacc.c: CPP Macros
+** Discuss about %printer/%destroy in the case of C++.
+It would be very nice to provide the symbol classes with an operator<<
+and a destructor.  Unfortunately the syntax we have chosen for
+%destroy and %printer make them hard to reuse.  For instance, the user
+is invited to write something like
 
-Do some people use YYPURE, YYLSP_NEEDED like we do in the test suite?
-They should not: it is not documented.  But if they need to, let's
-find something clean (not like YYLSP_NEEDED...).
+   %printer { debug_stream() << $$; } <my_type>;
+
+which is hard to reuse elsewhere since it wants to use
+"debug_stream()" to find the stream to use.  The same applies to
+%destroy: we told the user she could use the members of the Parser
+class in the printers/destructors, which is not good for an operator<<
+since it is no longer bound to a particular parser, it's just a
+(standalone symbol).
+
+** Rename LR0.cc
+as lr0.cc, why upper case?
+
+** bench several bisons.
+Enhance bench.pl with %b to run different bisons.
+
+* Various
+** Warnings
+Warnings about type tags that are used in printer and dtors, but not
+for symbols?
+
+** YYERRCODE
+Defined to 256, but not used, not documented.  Probably the token
+number for the error token, which POSIX wants to be 256, but which
+Bison might renumber if the user used number 256.  Keep fix and doc?
+Throw away?
+
+Also, why don't we output the token name of the error token in the
+output?  It is explicitly skipped:
+
+      /* Skip error token and tokens without identifier.  */
+      if (sym != errtoken && id)
+
+Of course there are issues with name spaces, but if we disable we have
+something which seems to be more simpler and more consistent instead
+of the special case YYERRCODE.
+
+   enum yytokentype {
+     error = 256,
+     // ...
+   };
 
 
-* Installation
+We could (should?) also treat the case of the undef_token, which is
+numbered 257 for yylex, and 2 internal.  Both appear for instance in
+toknum:
 
-* Documentation
-Before releasing, make sure the documentation ("Understanding your
-parser") refers to the current `output' format.
+  const unsigned short int
+  parser::yytoken_number_[] =
+  {
+       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
 
-* lalr1.cc
-** vector
-Move to using vector, drop stack.hh.
+while here
+
+   enum yytokentype {
+     TOK_EOF = 0,
+     TOK_EQ = 258,
+
+so both 256 and 257 are "mysterious".
+
+  const char*
+  const parser::yytname_[] =
+  {
+  "\"end of command\"", "error", "$undefined", "\"=\"", "\"break\"",
+
+
+** YYFAIL
+It is seems to be *really* obsolete now, shall we remove it?
+
+** yychar == yyempty_
+The code in yyerrlab reads:
+
+      if (yychar <= YYEOF)
+        {
+          /* Return failure if at end of input.  */
+          if (yychar == YYEOF)
+            YYABORT;
+        }
+
+There are only two yychar that can be <= YYEOF: YYEMPTY and YYEOF.
+But I can't produce the situation where yychar is YYEMPTY here, is it
+really possible?  The test suite does not exercise this case.
+
+This shows that it would be interesting to manage to install skeleton
+coverage analysis to the test suite.
+
+** Table definitions
+It should be very easy to factor the definition of the various tables,
+including the separation bw declaration and definition.  See for
+instance b4_table_define in lalr1.cc.  This way, we could even factor
+C vs. C++ definitions.
+
+* From lalr1.cc to yacc.c
+** Single stack
+Merging the three stacks in lalr1.cc simplified the code, prompted for
+other improvements and also made it faster (probably because memory
+management is performed once instead of three times).  I suggest that
+we do the same in yacc.c.
+
+** yysyntax_error
+The code bw glr.c and yacc.c is really alike, we can certainly factor
+some parts.
 
-** I18n
-Catch up with yacc.c.
 
 * Report
 
+** Figures
+Some statistics about the grammar and the parser would be useful,
+especially when asking the user to send some information about the
+grammars she is working on.  We should probably also include some
+information about the variables (I'm not sure for instance we even
+specify what LR variant was used).
+
 **  GLR
 How would Paul like to display the conflicted actions?  In particular,
 what when two reductions are possible on a given lookahead token, but one is
@@ -55,36 +163,11 @@ DeRemer and Penello: they already provide the algorithm.
 
 * Extensions
 
-** Labeling the symbols
-Have a look at the Lemon parser generator: instead of $1, $2 etc. they
-can name the values.  This is much more pleasant.  For instance:
-
-       exp (res): exp (a) '+' exp (b) { $res = $a + $b; };
-
-I love this.  I have been bitten too often by the removal of the
-symbol, and forgetting to shift all the $n to $n-1.  If you are
-unlucky, it compiles...
-
-But instead of using $a etc., we can use regular variables.  And
-instead of using (), I propose to use `:' (again).  Paul suggests
-supporting `->' in addition to `:' to separate LHS and RHS. In other
-words:
-
-       r:exp -> a:exp '+' b:exp { r = a + b; };
-
-That requires an significant improvement of the grammar parser.  Using
-GLR would be nice.  It also requires that Bison know the type of the
-symbols (which will be useful for %include anyway).  So we have some
-time before...
-
-Note that there remains the problem of locations: `@r'?
-
-
 ** $-1
 We should find a means to provide an access to values deep in the
 stack.  For instance, instead of
 
-	baz: qux { $$ = $<foo>-1 + $<bar>0 + $1; }
+        baz: qux { $$ = $<foo>-1 + $<bar>0 + $1; }
 
 we should be able to have:
 
@@ -99,9 +182,6 @@ must be in the scanner: we must not parse what is in a switched off
 part of %if.  Akim Demaille thinks it should be in the parser, so as
 to avoid falling into another CPP mistake.
 
-** -D, --define-muscle NAME=VALUE
-To define muscles via cli.  Or maybe support directly NAME=VALUE?
-
 ** XML Output
 There are couple of available extensions of Bison targeting some XML
 output.  Some day we should consider including them.  One issue is
@@ -120,13 +200,13 @@ XML output for GNU Bison
 * Unit rules
 Maybe we could expand unit rules, i.e., transform
 
-	exp: arith | bool;
-	arith: exp '+' exp;
-	bool: exp '&' exp;
+        exp: arith | bool;
+        arith: exp '+' exp;
+        bool: exp '&' exp;
 
 into
 
-	exp: exp '+' exp | exp '&' exp;
+        exp: exp '+' exp | exp '&' exp;
 
 when there are no actions.  This can significantly speed up some
 grammars.  I can't find the papers.  In particular the book `LR
@@ -142,27 +222,22 @@ this issue.  Does anybody have it?
 Some history of Bison and some bibliography would be most welcome.
 Are there any Texinfo standards for bibliography?
 
-
-
-* Java, Fortran, etc.
-
-
 * Coding system independence
 Paul notes:
 
-	Currently Bison assumes 8-bit bytes (i.e. that UCHAR_MAX is
-	255).  It also assumes that the 8-bit character encoding is
-	the same for the invocation of 'bison' as it is for the
-	invocation of 'cc', but this is not necessarily true when
-	people run bison on an ASCII host and then use cc on an EBCDIC
-	host.  I don't think these topics are worth our time
-	addressing (unless we find a gung-ho volunteer for EBCDIC or
-	PDP-10 ports :-) but they should probably be documented
-	somewhere.
+        Currently Bison assumes 8-bit bytes (i.e. that UCHAR_MAX is
+        255).  It also assumes that the 8-bit character encoding is
+        the same for the invocation of 'bison' as it is for the
+        invocation of 'cc', but this is not necessarily true when
+        people run bison on an ASCII host and then use cc on an EBCDIC
+        host.  I don't think these topics are worth our time
+        addressing (unless we find a gung-ho volunteer for EBCDIC or
+        PDP-10 ports :-) but they should probably be documented
+        somewhere.
 
-	More importantly, Bison does not currently allow NUL bytes in
-	tokens, either via escapes (e.g., "x\0y") or via a NUL byte in
-	the source code.  This should get fixed.
+        More importantly, Bison does not currently allow NUL bytes in
+        tokens, either via escapes (e.g., "x\0y") or via a NUL byte in
+        the source code.  This should get fixed.
 
 * --graph
 Show reductions.
@@ -172,33 +247,6 @@ Show reductions.
 ** Skeleton strategy
 Must we keep %token-table?
 
-* src/print_graph.c
-Find the best graph parameters.
-
-* BTYacc
-See if we can integrate backtracking in Bison.  Charles-Henri de
-Boysson <[email protected]> is working on this, and already has some
-results.  Vadim Maslow, the maintainer of BTYacc was contacted, and we
-stay in touch with him.  Adjusting the Bison grammar parser will be
-needed to support some extra BTYacc features.  This is less urgent.
-
-** Keeping the conflicted actions
-First, analyze the differences between byacc and btyacc (I'm referring
-to the executables).  Find where the conflicts are preserved.
-
-** Compare with the GLR tables
-See how isomorphic the way BTYacc and the way the GLR adjustments in
-Bison are compatible.  *As much as possible* one should try to use the
-same implementation in the Bison executables.  I insist: it should be
-very feasible to use the very same conflict tables.
-
-** Adjust the skeletons
-Import the skeletons for C and C++.
-
-** Improve the skeletons
-Have them support yysymprint, yydestruct and so forth.
-
-
 * Precedence
 
 ** Partial order
@@ -206,15 +254,6 @@ It is unfortunate that there is a total order for precedence.  It
 makes it impossible to have modular precedence information.  We should
 move to partial orders (sounds like series/parallel orders to me).
 
-** Correlation b/w precedence and associativity
-Also, I fail to understand why we have to assign the same
-associativity to operators with the same precedence.  For instance,
-why can't I decide that the precedence of * and / is the same, but the
-latter is nonassoc?
-
-If there is really no profound motivation, we should find a new syntax
-to allow specifying this.
-
 ** RR conflicts
 See if we can use precedence between rules to solve RR conflicts.  See
 what POSIX says.
@@ -243,20 +282,6 @@ $<type_name>$ = $<type_name>1. I therefore think that one should implement
 a Bison option where every typed default rule is explicitly written out
 (same typed ruled can of course be grouped together).
 
-Note: Robert Anisko handles this.  He knows how to do it.
-
-
-* Warnings
-It would be nice to have warning support.  See how Autoconf handles
-them, it is fairly well described there.  It would be very nice to
-implement this in such a way that other programs could use
-lib/warnings.[ch].
-
-Don't work on this without first announcing you do, as I already have
-thought about it, and know many of the components that can be used to
-implement it.
-
-
 * Pre and post actions.
 From: Florian Krohm <[email protected]>
 Subject: YYACT_EPILOGUE
@@ -288,10 +313,32 @@ to bison. If you're interested, I'll work on a patch.
 * Better graphics
 Equip the parser with a means to create the (visual) parse tree.
 
+* Complaint submessage indentation.
+We already have an implementation that works fairly well for named
+reference messages, but it would be nice to use it consistently for all
+submessages from Bison.  For example, the "previous definition"
+submessage or the list of correct values for a %define variable might
+look better with indentation.
+
+However, the current implementation makes the assumption that the
+location printed on the first line is not usually much shorter than the
+locations printed on the submessage lines that follow.  That assumption
+may not hold true as often for some kinds of submessages especially if
+we ever support multiple grammar files.
+
+Here's a proposal for how a new implementation might look:
+
+  http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00086.html
+
+
+Local Variables:
+mode: outline
+coding: utf-8
+End:
+
 -----
 
-Copyright (C) 2001, 2002, 2003, 2004, 2006 Free Software Foundation,
-Inc.
+Copyright (C) 2001-2004, 2006, 2008-2012 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

bootstrap.conf

@@ -1,6 +1,6 @@
 # Bootstrap configuration.
 
-# Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2006-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -17,12 +17,24 @@
 
 # gnulib modules used by this package.
 gnulib_modules='
-	announce-gen argmatch config-h c-strcase configmake
-	dirname error extensions fopen-safer getopt gettext git-version-gen
-	gnumakefile hash inttypes javacomp-script javaexec-script malloc
-	mbswidth obstack quote quotearg stdbool stpcpy strerror strtoul
-	strverscmp unistd unistd-safer unlocked-io unsetenv verify
-	warnings xalloc xalloc-die xstrndup
+  argmatch assert calloc-posix close closeout config-h c-strcase
+  configmake
+  dirname
+  error extensions fdl fopen-safer getopt-gnu
+  gettext git-version-gen gitlog-to-changelog
+  gpl-3.0 hash inttypes isnan javacomp-script
+  javaexec-script ldexpl malloc-gnu mbschr mbsrchr
+  mbswidth obstack perror progname
+  quote quotearg
+  readme-release
+  realloc-posix
+  spawn-pipe stdbool stpcpy strdup-posix strerror strtoul strverscmp
+  unistd unistd-safer unlocked-io update-copyright unsetenv verify
+  warnings
+  xalloc xalloc-die xmemdup0 xstrndup
+
+  fprintf-posix printf-posix snprintf-posix sprintf-posix
+  vsnprintf-posix vsprintf-posix
 '
 
 # Additional xgettext options to use.  Use "\\\newline" to break lines.
@@ -41,26 +53,40 @@ XGETTEXT_OPTIONS_RUNTIME=$XGETTEXT_OPTIONS'\\\
 # Gettext supplies these files, but we don't need them since
 # we don't have an intl subdirectory.
 excluded_files='
-    m4/codeset.m4
     m4/glibc2.m4
-    m4/glibc21.m4
     m4/intdiv0.m4
     m4/intl.m4
     m4/intldir.m4
     m4/intmax.m4
-    m4/inttypes_h.m4
     m4/lcmessage.m4
     m4/lock.m4
     m4/longdouble.m4
-    m4/printf-posix.m4
     m4/signed.m4
-    m4/size_max.m4
     m4/uintmax_t.m4
     m4/ulonglong.m4
     m4/visibility.m4
-    m4/xsize.m4
 '
 
-# In directories like lib/, m4/, and po/, generate both these files because we
-# still try to support CVS emulation.
-vc_ignore='.cvsignore .gitignore'
+gnulib_tool_option_extras='--symlink --makefile-name=gnulib.mk'
+
+bootstrap_post_import_hook()
+{
+  # Ensure that ChangeLog exists, for automake.
+  test -f ChangeLog || touch ChangeLog
+}
+
+bootstrap_epilogue()
+{
+  # Make sure we don't need src/bison, which usually doesn't exist at
+  # the time of a bootstrap.
+  touch src/parse-gram.[ch]
+
+  perl -pi -e "s/\@PACKAGE\@/$package/g" README-release
+}
+
+# Keep our bootstrap script in sync with gnulib's.  If we ever need to
+# maintain our own bootstrap script again, set this to false, remove
+# the bootstrap entry from the file .x-update-copyright, and add any
+# needed copyright years to the copyright statement in the bootstrap
+# script.
+bootstrap_sync=true

build-aux/.cvsignore

@@ -1,17 +0,0 @@
-Makefile
-Makefile.in
-announce-gen
-compile
-config.guess
-config.rpath
-config.sub
-depcomp
-git-version-gen
-install-sh
-javacomp.sh.in
-javaexec.sh.in
-link-warning.h
-mdate-sh
-missing
-texinfo.tex
-ylwrap

build-aux/.gitignore

@@ -1,12 +1,19 @@
 /Makefile
 /Makefile.in
 /announce-gen
+/arg-nonnull.h
+/c++defs.h
 /compile
 /config.guess
 /config.rpath
 /config.sub
 /depcomp
+/do-release-commit-and-tag
+/gendocs.sh
 /git-version-gen
+/gitlog-to-changelog
+/gnu-web-doc-update
+/gnupload
 /install-sh
 /javacomp.sh.in
 /javaexec.sh.in
@@ -14,4 +21,8 @@
 /mdate-sh
 /missing
 /texinfo.tex
+/update-copyright
+/useless-if-before-free
+/vc-list-files
+/warn-on-use.h
 /ylwrap

build-aux/Makefile.am

@@ -1,2 +1,20 @@
-## Process this file with automake to produce Makefile.in -*-Makefile-*-
-EXTRA_DIST = prev-version.txt cross-options.pl
+## Copyright (C) 2006, 2009-2012 Free Software Foundation, Inc.
+
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+EXTRA_DIST =					\
+  cross-options.pl				\
+  darwin11.4.0.valgrind				\
+  prev-version.txt				\
+  update-b4-copyright

build-aux/cross-options.pl

@@ -5,33 +5,75 @@ use 5.005;
 use strict;
 
 my %option;
-while (<>)
+my %directive;
+my $scanner = `grep -i '"%[a-z]' $ARGV[0]`;
+$scanner =~ s/"\[-_\]"/-/g;
+while (<STDIN>)
 {
-    if (/^\s*          # Initial spaces.
-        (?:(-\w),\s+)? # $1: Possible short option.
-        (--[-\w]+)     # $2: Long option.
-        (\[?)          # $3: '[' iff the argument is optional.
-        (?:=([-\w]+))? # $4: Possible argument name.
+    if (/^\s*             # Initial spaces.
+        (?:(-\w),\s+)?    # $1: $short: Possible short option.
+        (--[-\w]+)        # $2: $long:  Long option.
+        (\[?)             # $3: $opt:   '[' iff the argument is optional.
+        (?:=(\S+))?       # $4: $arg:   Possible argument name.
+        \s                # Spaces.
         /x)
     {
 	my ($short, $long, $opt, $arg) = ($1, $2, $3, $4);
-	$short = defined $short ? '@option{' . $short . '}' : '';
+	$short = '' if ! defined $short;
+	$short = '-d' if $long eq '--defines' && ! $short;
+	my $dir = '%' . substr($long, 2);
+	if (index ($scanner, "\"$dir\"") < 0)
+	{
+	  if ($long eq '--force-define') { $dir = '%define'; }
+	  else { $dir = ''; }
+	}
 	if ($arg)
 	{
+            # if $opt, $arg contains the closing ].
+            substr ($arg, -1) = ''
+                if $opt eq '[';
 	    $arg =~ s/^=//;
-	    $arg = '@var{' . lc ($arg) . '}';
-	    $arg = '[' . $arg . ']'
-		if $opt eq '[';
-	    $option{"$long=$arg"} = $short ? "$short $arg" : '';
-	}
-	else
-	{
-	    $option{"$long"} = "$short";
+            $arg = lc ($arg);
+	    my $dir_arg = $arg;
+            # If the argument is compite (e.g., for --define[=NAME[=VALUE]]),
+            # put each word in @var, to build @var{name}[=@var{value}], not
+            # @var{name[=value]}].
+	    $arg =~ s/(\w+)/\@var{$1}/g;
+	    my $long_arg = "=$arg";
+	    if ($opt eq '[') {
+	      $long_arg = "[$long_arg]";
+	      $arg = "[$arg]";
+	    }
+	    # For arguments of directives: this only works if all arguments
+	    # are strings and have the same syntax as on the command line.
+	    if ($dir_arg eq 'name[=value]')
+	    {
+		$dir_arg = '@var{name} ["@var{value}"]';
+	    }
+	    else
+	    {
+		$dir_arg =~ s/(\w+)/\@var{"$1"}/g;
+		$dir_arg = '[' . $dir_arg . ']'
+		    if $opt eq '[';
+	    }
+	    $long = "$long$long_arg";
+	    $short = "$short $arg" if $short && $short ne '-d';
+	    $dir = "$dir $dir_arg" if $dir;
 	}
+	$option{$long} = $short;
+	$directive{$long} = $dir;
     }
 }
 
+my $sep = '';
 foreach my $long (sort keys %option)
 {
-    printf "\@item %-40s \@tab %s\n", '@option{' . $long . '}', $option{$long};
+    # Avoid trailing spaces.
+    print $sep;
+    $sep = "\n";
+    print '@item @option{', $long, "}\n\@tab";
+    print ' @option{', $option{$long}, '}' if $option{$long};
+    print "\n\@tab";
+    print ' @code{', $directive{$long}, '}' if $directive{$long};
+    print "\n";
 }

build-aux/darwin11.4.0.valgrind

@@ -0,0 +1,64 @@
+# Copyright (C) 2012 Free Software Foundation, Inc.
+
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Valgrind suppression file for Bison.
+
+{
+   Mac OS X initialization
+   Memcheck:Leak
+   fun:?alloc*
+   ...
+   fun:*ImageLoader*
+}
+
+{
+   Mac OS X initialization
+   Memcheck:Leak
+   fun:?alloc*
+   ...
+   fun:*dyld*
+}
+
+{
+   Mac OS X initialization
+   Memcheck:Leak
+   fun:?alloc*
+   ...
+   fun:__CFInitialize
+}
+
+{
+   Mac OS X I/O buffer
+   Memcheck:Leak
+   fun:malloc
+   fun:__smakebuf
+   fun:__swsetup
+   fun:__sfvwrite
+   fun:fwrite
+}
+
+{
+   Mac OS X I/O buffer
+   Memcheck:Leak
+   fun:malloc
+   fun:__smakebuf
+   fun:__swsetup
+   fun:__swbuf
+   fun:putchar
+}
+
+# Local Variables:
+# mode: shell-script
+# End:

build-aux/git-log-fix

@@ -0,0 +1,3 @@
+# This file is expected to be used via gitlog-to-changelog's --amend=FILE
+# option.  It specifies what changes to make to each given SHA1's commit
+# log and metadata, using Perl-eval'able expressions.

build-aux/snippet/.gitignore

@@ -0,0 +1,4 @@
+/_Noreturn.h
+/arg-nonnull.h
+/c++defs.h
+/warn-on-use.h

build-aux/update-b4-copyright

@@ -0,0 +1,152 @@
+#!/usr/bin/perl -0777 -pi
+
+# Update b4_copyright invocations or b4_copyright_years definitions to
+# include the current year.
+
+# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+
+# This program 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 3, or (at your option)
+# any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+use strict;
+use warnings;
+
+my $margin = 72;
+
+my $this_year = $ENV{UPDATE_COPYRIGHT_YEAR};
+if (!$this_year || $this_year !~ m/^\d{4}$/)
+  {
+    my ($sec, $min, $hour, $mday, $month, $year) = localtime (time ());
+    $this_year = $year + 1900;
+  }
+my $old_re = <<'EOF'
+  (
+    (?:^|\n)
+    #BEFORE
+    (?:
+      b4_copyright\(\[[^][]*]
+      | m4_(?:push|pop)def\(\[b4_copyright_years]
+    )
+    #AFTER
+  )
+  (?:
+    ,\s*
+    (
+      \[\s* (?:\d{4}(?:,\s*|-))* (\d{4}) \s*]
+    )
+  )?
+  \)
+EOF
+  ;
+
+while (/($old_re)/gx)
+  {
+    my $start = pos() - length ($1);
+    my $b4_copyright_line = $2;
+    my $year_lines = $3;
+    my $final_year = $4;
+    $year_lines .= ')';
+
+    # If there was a second argument, it contains years, so update them.
+    if ($final_year)
+      {
+        $b4_copyright_line .= ',';
+        if ($final_year != $this_year)
+          {
+            # Update the year.
+            $year_lines =~ s/$final_year/$final_year, $this_year/;
+          }
+
+        # Normalize all whitespace.
+        $year_lines =~ s/\s+/ /g;
+
+        # Put spaces after commas.
+        $year_lines =~ s/, ?/, /g;
+
+        # Compress to intervals.
+        $year_lines =~
+          s/
+            (\d{4})
+            (?:
+              (,\ |-)
+              ((??{
+                if    ($2 eq '-') { '\d{4}'; }
+                elsif (!$3)       { $1 + 1;  }
+                else              { $3 + 1;  }
+              }))
+            )+
+          /$1-$3/gx;
+
+        # Format within margin.
+        my $year_lines_new;
+        my $indent = index ($b4_copyright_line, '[');
+        --$indent if ($b4_copyright_line =~ m/^\n/);
+        while (length $year_lines)
+          {
+            my $text_margin = $margin - $indent;
+            if (($year_lines =~ s/^(.{1,$text_margin})(?: |$)//)
+                || ($year_lines =~ s/^([\S]+)(?: |$)//))
+              {
+                my $line = "\n" . (' 'x$indent) . $1;
+                ++$indent if (!$year_lines_new);
+                $year_lines_new .= $line;
+              }
+            else
+              {
+                # Should be unreachable, but we don't want an infinite
+                # loop if it can be reached.
+                die;
+              }
+          }
+
+        # Replace the old invocation.  Should never die.
+        die if (!s/$old_re\G/$b4_copyright_line$year_lines_new/x);
+
+        # Prepare for the next search.
+        pos () = $start + length ("$b4_copyright_line$year_lines_new");
+      }
+  }
+
+while (/(\bb4_copyright\()/g)
+  {
+    my $start = pos () - length ($1);
+    my $end = pos ();
+    my $re = $old_re;
+    pos () = $start;
+    $re =~ s/\#BEFORE/\\G/;
+    if (!/$re/x)
+      {
+        my $line = (substr ($_, 0, $start) =~ s/\n/\n/g) + 1;
+        print STDERR
+          "$ARGV:$line: warning: failed to update a b4_copyright\n";
+      }
+    pos () = $end;
+  }
+
+while (/(\[b4_copyright_years])/g)
+  {
+    my $start = pos () - length ($1);
+    my $end = pos ();
+    my $re = $old_re;
+    $re =~ s/\#AFTER/\\G/;
+    if (!/$re/x)
+      {
+        # The substr operation blows away pos (), so restoring pos ()
+        # at the end is necessary.
+        my $line = (substr ($_, 0, $start) =~ s/\n/\n/g) + 1;
+        print STDERR
+          "$ARGV:$line: warning: failed to update a"
+          . " b4_copyright_years\n";
+      }
+    pos () = $end;
+  }

build-aux/update-package-copyright-year

@@ -0,0 +1,49 @@
+#!/usr/bin/perl -0777 -pi
+
+# In configure.ac, update PACKAGE_COPYRIGHT_YEAR to the current year.
+
+# Copyright (C) 2010-2012 Free Software Foundation, Inc.
+#
+# This program 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 3, or (at your option)
+# any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+use strict;
+use warnings;
+
+my $this_year = $ENV{UPDATE_COPYRIGHT_YEAR};
+if (!$this_year || $this_year !~ m/^\d{4}$/)
+  {
+    my ($sec, $min, $hour, $mday, $month, $year) = localtime (time ());
+    $this_year = $year + 1900;
+  }
+my $old_re = <<'EOF'
+  (
+    MACRO\(
+    \[PACKAGE_COPYRIGHT_YEAR],
+    \s*\[
+  )
+  (\d{4})
+  (?=])
+EOF
+  ;
+foreach my $macro ("AC_DEFINE", "AC_SUBST")
+  {
+    my $this_old_re = $old_re;
+    $this_old_re =~ s/MACRO/$macro/;
+    if (!s/$this_old_re/$1$this_year/x)
+      {
+        print STDERR
+          "$ARGV: warning: failed to update PACKAGE_COPYRIGHT_YEAR in"
+          . " $macro.\n";
+      }
+  }

cfg.mk

@@ -1,5 +1,5 @@
 # Customize maint.mk                           -*- makefile -*-
-# Copyright (C) 2008 Free Software Foundation, Inc.
+# Copyright (C) 2008-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -14,6 +14,17 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Update version, then recompile so that tests/bison --version be
+# up-to-date, then compile our parser again with our up-to-date bison.
+.PHONY: regen
+regen: _version
+	$(MAKE) $(AM_MAKEFLAGS)
+	touch $(srcdir)/src/parse-gram.y
+	$(MAKE) $(AM_MAKEFLAGS)
+
+# Used in maint.mk's web-manual rule
+manual_title = The Yacc-compatible Parser Generator
+
 # It's useful to run maintainer-*check* targets during development, but we
 # don't want to wait on a recompile because of an update to $(VERSION).  Thus,
 # override the _is-dist-target from GNUmakefile so that maintainer-*check*
@@ -21,13 +32,6 @@
 _is-dist-target = $(filter-out %clean maintainer-check% maintainer-%-check, \
   $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS)))
 
-# Use alpha.gnu.org for alpha and beta releases.
-# Use ftp.gnu.org for major releases.
-gnu_ftp_host-alpha = alpha.gnu.org
-gnu_ftp_host-beta = alpha.gnu.org
-gnu_ftp_host-major = ftp.gnu.org
-gnu_rel_host = $(gnu_ftp_host-$(RELEASE_TYPE))
-
 url_dir_list = \
   ftp://$(gnu_rel_host)/gnu/bison
 
@@ -35,8 +39,40 @@ url_dir_list = \
 # Exclude changelog-check here so that there's less churn in ChangeLog
 # files -- otherwise, you'd need to have the upcoming version number
 # at the top of the file for each `make distcheck' run.
-local-checks-to-skip = changelog-check
+local-checks-to-skip = \
+  changelog-check \
+  sc_immutable_NEWS			\
+  sc_prohibit_always_true_header_tests	\
+  sc_prohibit_atoi_atof			\
+  sc_prohibit_strcmp
 
 # The local directory containing the checked-out copy of gnulib used in
 # this release.  Used solely to get a date for the "announcement" target.
-gnulib_dir = $(srcdir)/../../gnulib
+gnulib_dir = $(srcdir)/gnulib
+
+bootstrap-tools = autoconf,automake,flex,gettext,gnulib
+
+announcement_Cc_ = \
+  [email protected], [email protected], [email protected], \
+  [email protected]
+
+update-copyright: update-b4-copyright update-package-copyright-year
+update-copyright-env = \
+  UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1
+
+exclude = \
+  $(foreach a,$(1),$(eval $(subst $$,$$$$,exclude_file_name_regexp--sc_$(a))))
+$(call exclude,								\
+  bindtextdomain=^lib/main.c$$						\
+  program_name=^lib/main.c$$						\
+  prohibit_always-defined_macros=^data/yacc.c|^djgpp/			\
+  prohibit_always-defined_macros+=?|^lib/timevar.c$$			\
+  prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$	\
+  prohibit_always-defined_macros+=?|^tests/regression.at$$		\
+  prohibit_defined_have_decl_tests=?|^lib/timevar.c$$			\
+  prohibit_empty_lines_at_EOF=^src/parse-gram.[ch]$$			\
+  require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$		\
+  space_tab=^tests/(input|c\+\+)\.at$$					\
+  trailing_blank=^src/parse-gram.[ch]$$					\
+  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$)			\
+)

config.hin

@@ -1,292 +0,0 @@
-/* config.hin.  Generated from configure.in by autoheader.  */
-
-/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP
-   systems. This function is required for `alloca.c' support on those systems.
-   */
-#undef CRAY_STACKSEG_END
-
-/* Define if using `alloca.c'. */
-#undef C_ALLOCA
-
-/* Define to 1 if translation of program messages to the user's native
-   language is requested. */
-#undef ENABLE_NLS
-
-/* Define if you have `alloca', as a function or macro. */
-#undef HAVE_ALLOCA
-
-/* Define if you have <alloca.h> and it should be used (not on Ultrix). */
-#undef HAVE_ALLOCA_H
-
-/* Define if you have the <argz.h> header file. */
-#undef HAVE_ARGZ_H
-
-/* Define if you have the <ctype.h> header file. */
-#undef HAVE_CTYPE_H
-
-/* Define if backslash-a works in C strings. */
-#undef HAVE_C_BACKSLASH_A
-
-/* Define if you have the `dcgettext' function. */
-#undef HAVE_DCGETTEXT
-
-/* Define to 1 if you have the declaration of `memchr', and to 0 if you don't.
-   */
-#undef HAVE_DECL_MEMCHR
-
-/* Define to 1 if you have the declaration of `stpcpy', and to 0 if you don't.
-   */
-#undef HAVE_DECL_STPCPY
-
-/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
-   don't. */
-#undef HAVE_DECL_STRERROR_R
-
-/* Define to 1 if you have the declaration of `strndup', and to 0 if you
-   don't. */
-#undef HAVE_DECL_STRNDUP
-
-/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
-   don't. */
-#undef HAVE_DECL_STRNLEN
-
-/* Define if the malloc check has been performed. */
-#undef HAVE_DONE_WORKING_MALLOC_CHECK
-
-/* Define if the realloc check has been performed. */
-#undef HAVE_DONE_WORKING_REALLOC_CHECK
-
-/* Define if you have the `doprnt' function. */
-#undef HAVE_DOPRNT
-
-/* Define if you have the `feof_unlocked' function. */
-#undef HAVE_FEOF_UNLOCKED
-
-/* Define if you have the `fgets_unlocked' function. */
-#undef HAVE_FGETS_UNLOCKED
-
-/* Define if you have the `getcwd' function. */
-#undef HAVE_GETCWD
-
-/* Define if you have the `getegid' function. */
-#undef HAVE_GETEGID
-
-/* Define if you have the `geteuid' function. */
-#undef HAVE_GETEUID
-
-/* Define if you have the `getgid' function. */
-#undef HAVE_GETGID
-
-/* Define if you have the `getpagesize' function. */
-#undef HAVE_GETPAGESIZE
-
-/* Define if the GNU gettext() function is already present or preinstalled. */
-#undef HAVE_GETTEXT
-
-/* Define if you have the `getuid' function. */
-#undef HAVE_GETUID
-
-/* Define if you have the iconv() function. */
-#undef HAVE_ICONV
-
-/* Define if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define if you have the `isascii' function. */
-#undef HAVE_ISASCII
-
-/* Define if you have the `iswprint' function. */
-#undef HAVE_ISWPRINT
-
-/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
-#undef HAVE_LANGINFO_CODESET
-
-/* Define if your <locale.h> file defines LC_MESSAGES. */
-#undef HAVE_LC_MESSAGES
-
-/* Define if you have the <limits.h> header file. */
-#undef HAVE_LIMITS_H
-
-/* Define if you have the <locale.h> header file. */
-#undef HAVE_LOCALE_H
-
-/* Define if you have the <malloc.h> header file. */
-#undef HAVE_MALLOC_H
-
-/* Define to 1 if mbrtowc and mbstate_t are properly declared. */
-#undef HAVE_MBRTOWC
-
-/* Define if you have the `mbsinit' function. */
-#undef HAVE_MBSINIT
-
-/* Define if you have the `memchr' function. */
-#undef HAVE_MEMCHR
-
-/* Define if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define if you have the `mempcpy' function. */
-#undef HAVE_MEMPCPY
-
-/* Define if you have the `mkstemp' function. */
-#undef HAVE_MKSTEMP
-
-/* Define if you have a working `mmap' system call. */
-#undef HAVE_MMAP
-
-/* Define if you have the `munmap' function. */
-#undef HAVE_MUNMAP
-
-/* Define if you have the <nl_types.h> header file. */
-#undef HAVE_NL_TYPES_H
-
-/* Define if you have the `putenv' function. */
-#undef HAVE_PUTENV
-
-/* Define if you have the `setenv' function. */
-#undef HAVE_SETENV
-
-/* Define if you have the `setlocale' function. */
-#undef HAVE_SETLOCALE
-
-/* Define if you have the <stddef.h> header file. */
-#undef HAVE_STDDEF_H
-
-/* Define if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define if you have the `stpcpy' function. */
-#undef HAVE_STPCPY
-
-/* Define if you have the `strcasecmp' function. */
-#undef HAVE_STRCASECMP
-
-/* Define if you have the `strchr' function. */
-#undef HAVE_STRCHR
-
-/* Define if you have the `strdup' function. */
-#undef HAVE_STRDUP
-
-/* Define if you have the `strerror' function. */
-#undef HAVE_STRERROR
-
-/* Define if you have the `strerror_r' function. */
-#undef HAVE_STRERROR_R
-
-/* Define if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define if you have the `strndup' function. */
-#undef HAVE_STRNDUP
-
-/* Define if you have the `strnlen' function. */
-#undef HAVE_STRNLEN
-
-/* Define if you have the `strspn' function. */
-#undef HAVE_STRSPN
-
-/* Define if you have the `strtoul' function. */
-#undef HAVE_STRTOUL
-
-/* Define if you have the <sys/param.h> header file. */
-#undef HAVE_SYS_PARAM_H
-
-/* Define if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define if you have the `tsearch' function. */
-#undef HAVE_TSEARCH
-
-/* Define if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define if you have the `vprintf' function. */
-#undef HAVE_VPRINTF
-
-/* Define if you have the <wchar.h> header file. */
-#undef HAVE_WCHAR_H
-
-/* Define if you have the <wctype.h> header file. */
-#undef HAVE_WCTYPE_H
-
-/* Define to 1 if `strerror_r' returns a string. */
-#undef HAVE_WORKING_STRERROR_R
-
-/* Define if you have the `__argz_count' function. */
-#undef HAVE___ARGZ_COUNT
-
-/* Define if you have the `__argz_next' function. */
-#undef HAVE___ARGZ_NEXT
-
-/* Define if you have the `__argz_stringify' function. */
-#undef HAVE___ARGZ_STRINGIFY
-
-/* Define as const if the declaration of iconv() needs const. */
-#undef ICONV_CONST
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define if compiler has function prototypes */
-#undef PROTOTYPES
-
-/* If using the C implementation of alloca, define if you know the
-   direction of stack growth for your system; otherwise it will be
-   automatically deduced at run-time.
-        STACK_DIRECTION > 0 => grows toward higher addresses
-        STACK_DIRECTION < 0 => grows toward lower addresses
-        STACK_DIRECTION = 0 => direction of growth unknown */
-#undef STACK_DIRECTION
-
-/* Define if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Version number of package */
-#undef VERSION
-
-/* Define if using the dmalloc debugging malloc package */
-#undef WITH_DMALLOC
-
-/* Define to 1 for GNU C library extensions. */
-#undef _GNU_SOURCE
-
-/* Define if on MINIX. */
-#undef _MINIX
-
-/* Define if the system does not provide POSIX.1 features except with this
-   defined. */
-#undef _POSIX_1_SOURCE
-
-/* Define if you need to in order for `stat' and other things to work. */
-#undef _POSIX_SOURCE
-
-/* Define to empty if `const' does not conform to ANSI C. */
-#undef const
-
-/* Define as `__inline' if that's what the C compiler calls it, or to nothing
-   if it is not supported. */
-#undef inline
-
-/* Define to rpl_malloc if the replacement function should be used. */
-#undef malloc
-
-/* Define to a type if <wchar.h> does not define. */
-#undef mbstate_t
-
-/* Define to `long' if <sys/types.h> does not define. */
-#undef off_t
-
-/* Define to rpl_realloc if the replacement function should be used. */
-#undef realloc
-
-/* Define to `unsigned' if <sys/types.h> does not define. */
-#undef size_t

configure.ac

@@ -1,7 +1,6 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001-2012 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -16,62 +15,89 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# We have strange test case titles, so we need Autoconf 2.61 or better.
-AC_PREREQ(2.61)
+# In order for some versions of Sun Studio to compile our C++ test cases
+# correctly, we need Autoconf 2.64 or better to handle the restrict
+# keyword in at least string.h from gnulib.  We need Autoconf 2.68 or
+# better to avoid a typo in the `configure --help' entry for the YACC
+# environment variable.
+AC_PREREQ([2.68])
+m4_pattern_forbid([^gl_[A-Z]])
 
 AC_INIT([GNU Bison],
         m4_esyscmd([build-aux/git-version-gen .tarball-version]),
         [[email protected]])
-AC_DEFINE([PACKAGE_COPYRIGHT_YEAR], [2008],
-          [The copyright year for this package])
-AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2008])
+AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
+AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
+                   [The copyright year for this package])
 
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
-# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
-# We want gnits strictness only when rolling a formal release so that we can,
-# for example, run make dist at other times without being required to add a
-# bogus NEWS entry.
-AM_INIT_AUTOMAKE([1.8 dist-bzip2]
-                 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [-], [gnu], [gnits]))
-AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
+# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
+#
+#   http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
+#
+# To avoid 1.11, we make 1.11.1 the minimum version.
+#
+# We want gnits strictness only when rolling a stable release.  For
+# release candidates, we use version strings like 2.4.3_rc1, but gnits
+# doesn't like that, so we let the underscore disable gnits.  Between
+# releases, we want to be able run make dist without being required to
+# add a bogus NEWS entry.  In that case, the version string
+# automatically contains a dash, which we also let disable gnits.
+AM_INIT_AUTOMAKE([1.11.1 dist-xz silent-rules]
+                 m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]],
+                           [gnu], [gnits]))
+AM_SILENT_RULES([yes])
+AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h])
 
 # Checks for the compiler.
 AC_PROG_CC_STDC
+AC_PROG_CXX
 
 # Gnulib (early checks).
 gl_EARLY
 
-AC_ARG_ENABLE(gcc-warnings,
+AC_ARG_ENABLE([gcc-warnings],
 [  --enable-gcc-warnings   turn on lots of GCC warnings (not recommended)],
-[case "${enableval}" in
+[case $enable_gcc_warnings in
    yes|no) ;;
-   *)      AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
+   *)  AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);;
  esac],
-	      [enableval=no])
-if test "${enableval}" = yes; then
+              [enable_gcc_warnings=no])
+if test "$enable_gcc_warnings" = yes; then
+  warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align
+    -Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings'
+  warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes
+    -Wshadow -Wstrict-prototypes'
+  warn_cxx='-Wnoexcept'
+  AC_LANG_PUSH([C])
+  for i in $warn_common $warn_c;
+  do
+    gl_WARN_ADD([$i], [WARN_CFLAGS])
+  done
   gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
-  AC_SUBST([WERROR_CFLAGS])
-  gl_WARN_ADD([-Wall])
-  gl_WARN_ADD([-Wextra -Wno-sign-compare])
-  gl_WARN_ADD([-Wcast-align])
-  gl_WARN_ADD([-Wcast-qual])
-  gl_WARN_ADD([-Wformat])
-  gl_WARN_ADD([-Wpointer-arith])
-  gl_WARN_ADD([-Wwrite-strings])
-  AC_SUBST([WARN_CXXFLAGS], [$WARN_CFLAGS])
-  # The following warnings are not suitable for C++.
-  gl_WARN_ADD([-Wbad-function-cast])
-  gl_WARN_ADD([-Wmissing-declarations])
-  gl_WARN_ADD([-Wmissing-prototypes])
-  gl_WARN_ADD([-Wshadow])
-  gl_WARN_ADD([-Wstrict-prototypes])
-  AC_SUBST([WARN_CFLAGS])
-  AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
+  # Warnings for the test suite only.
+  gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
+  gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
+  AC_LANG_POP([C])
+
+  AC_LANG_PUSH([C++])
+  for i in $warn_common $warn_cxx;
+  do
+    gl_WARN_ADD([$i], [WARN_CXXFLAGS])
+  done
+  gl_WARN_ADD([ -Wzero-as-null-pointer-constant], [WARN_CXXFLAGS],
+              [AC_LANG_PROGRAM([], [nullptr])])
+  gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS])
+  # Warnings for the test suite only.
+  gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST])
+  gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST])
+  AC_LANG_POP([C++])
 fi
 
 BISON_TEST_FOR_WORKING_C_COMPILER
+BISON_TEST_FOR_WORKING_CXX_COMPILER
 
 AC_ARG_ENABLE([yacc],
   [AC_HELP_STRING([--disable-yacc],
@@ -90,13 +116,13 @@ AC_SUBST([YACC_LIBRARY])
 
 # Checks for programs.
 AC_PROG_LEX
+$LEX_IS_FLEX || AC_MSG_ERROR([Flex is required])
 AC_PROG_YACC
 AC_PROG_RANLIB
-BISON_PROG_GNU_M4
-if test x"$ac_cv_prog_gnu_m4" != xyes; then
-  AC_MSG_ERROR([GNU M4 1.4 is required])
-fi
+AC_PROG_GNU_M4
 AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
+AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4
+supports -g, otherwise to "".])
 AM_MISSING_PROG([HELP2MAN], [help2man])
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 AC_SUBST([XSLTPROC])
@@ -114,13 +140,13 @@ gl_INIT
 # Checks for library functions.
 AC_CHECK_FUNCS_ONCE([setlocale])
 AM_WITH_DMALLOC
-BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
 # Gettext.
-# We've never tested with gettext versions before 0.15, so play it safe.
-AM_GNU_GETTEXT([external], [need-formatstring-macros])
-AM_GNU_GETTEXT_VERSION([0.15])
+# We use gnulib, which is only guaranteed to work properly with the
+# latest Gettext.
+AM_GNU_GETTEXT([external], [need-ngettext])
+AM_GNU_GETTEXT_VERSION([0.18])
 BISON_I18N
 
 # Internationalized parsers.
@@ -137,13 +163,19 @@ AC_CONFIG_TESTDIR(tests)
 AC_CONFIG_FILES([tests/Makefile tests/atlocal])
 AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
 AC_CHECK_PROGS([VALGRIND], [valgrind])
-AC_PROG_CXX
-BISON_TEST_FOR_WORKING_CXX_COMPILER
+case $VALGRIND:$host_os in
+  '':*) ;;
+  *:darwin*)
+    # See README-hacking.
+    # VALGRIND+=' --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind'
+    VALGRIND=;;
+  *:*)
+    AC_SUBST([VALGRIND_PREBISON], [$VALGRIND -q]);;
+esac
+
 AM_MISSING_PROG([AUTOM4TE], [autom4te])
 # Needed by tests/atlocal.in.
 AC_SUBST([GCC])
-AC_SUBST([O0CFLAGS],   [`echo $CFLAGS   | sed 's/-O[[0-9]] *//'`])
-AC_SUBST([O0CXXFLAGS], [`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`])
 
 gt_JAVACOMP([1.3])
 gt_JAVAEXEC

data/Makefile.am

@@ -1,4 +1,4 @@
-## Copyright (C) 2002, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+## Copyright (C) 2002, 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 
 dist_pkgdata_DATA = README bison.m4 \
    c-skel.m4 c.m4 yacc.c glr.c \
-   c++-skel.m4 c++.m4 location.cc lalr1.cc glr.cc \
+   c++-skel.m4 c++.m4 location.cc lalr1.cc glr.cc stack.hh \
    java-skel.m4 java.m4 lalr1.java
 
 m4sugardir = $(pkgdatadir)/m4sugar

data/README

@@ -52,7 +52,7 @@ into various formats.
 
 -----
 
-Copyright (C) 2002, 2008 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2012 Free Software Foundation, Inc.
 
 This file is part of GNU Bison.
 

data/bison.m4

@@ -1,8 +1,8 @@
                                                             -*- Autoconf -*-
 
 # Language-independent M4 Macros for Bison.
-# Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
-# Inc.
+
+# Copyright (C) 2002, 2004-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -85,7 +85,7 @@ m4_if(m4_sysval, [0], [], [m4_fatal([$0: cannot write to stdout])])])
 #
 # For example:
 #
-#   b4_error([[warn]], [[invalid value for `%s': %s]], [[foo]], [[3]])
+#   b4_error([[warn]], [[invalid value for '%s': %s]], [[foo]], [[3]])
 m4_define([b4_error],
 [b4_cat([[@]$1[(]$2[]]dnl
 [m4_if([$#], [2], [],
@@ -114,7 +114,7 @@ m4_define([b4_error_at],
 #
 # For example:
 #
-#   b4_warn([[invalid value for `%s': %s]], [[foo]], [[3]])
+#   b4_warn([[invalid value for '%s': %s]], [[foo]], [[3]])
 #
 # As a simple test suite, this:
 #
@@ -183,21 +183,6 @@ m4_define([b4_fatal_at],
 m4_exit(1)])
 
 
-## ---------------- ##
-## Default values.  ##
-## ---------------- ##
-
-# m4_define_default([b4_lex_param], [])   dnl breaks other skeletons
-m4_define_default([b4_pre_prologue], [])
-m4_define_default([b4_post_prologue], [])
-m4_define_default([b4_epilogue], [])
-m4_define_default([b4_parse_param], [])
-
-# The initial column and line.
-m4_define_default([b4_location_initial_column], [1])
-m4_define_default([b4_location_initial_line],   [1])
-
-
 ## ------------ ##
 ## Data Types.  ##
 ## ------------ ##
@@ -233,9 +218,9 @@ m4_define([b4_define_flag_if],
 
 # _b4_define_flag_if($1, $2, FLAG)
 # --------------------------------
-# This macro works around the impossibility to define macros
-# inside macros, because issuing `[$1]' is not possible in M4 :(.
-# This sucks hard, GNU M4 should really provide M5 like $$1.
+# Work around the impossibility to define macros inside macros,
+# because issuing `[$1]' is not possible in M4.  GNU M4 should provide
+# $$1 a la M5/TeX.
 m4_define([_b4_define_flag_if],
 [m4_if([$1$2], $[1]$[2], [],
        [m4_fatal([$0: Invalid arguments: $@])])dnl
@@ -246,17 +231,17 @@ m4_define([b4_$3_if],
 # b4_FLAG_if(IF-TRUE, IF-FALSE)
 # -----------------------------
 # Expand IF-TRUE, if FLAG is true, IF-FALSE otherwise.
-b4_define_flag_if([defines])	        # Whether headers are requested.
-b4_define_flag_if([error_verbose])	# Whether error are verbose.
-b4_define_flag_if([glr])		# Whether a GLR parser is requested.
-b4_define_flag_if([locations])	        # Whether locations are tracked.
-b4_define_flag_if([nondeterministic])	# Whether conflicts should be handled.
-b4_define_flag_if([yacc])	        # Whether POSIX Yacc is emulated.
+b4_define_flag_if([defines])            # Whether headers are requested.
+b4_define_flag_if([error_verbose])      # Whether error are verbose.
+b4_define_flag_if([glr])                # Whether a GLR parser is requested.
+b4_define_flag_if([locations])          # Whether locations are tracked.
+b4_define_flag_if([nondeterministic])   # Whether conflicts should be handled.
+b4_define_flag_if([token_table])        # Whether yytoken_table is demanded.
+b4_define_flag_if([yacc])               # Whether POSIX Yacc is emulated.
 
+# yytoken_table is needed to support verbose errors.
+b4_error_verbose_if([m4_define([b4_token_table_flag], [1])])
 
-## ------------------------- ##
-## Assigning token numbers.  ##
-## ------------------------- ##
 
 
 ## ----------- ##
@@ -312,13 +297,13 @@ b4_define_user_code([stype])
 
 
 # b4_check_user_names(WHAT, USER-LIST, BISON-NAMESPACE)
-# --------------------------------------------------------
-# Warn if any name of type WHAT is used by the user (as recorded in USER-LIST)
-# but is not used by Bison (as recorded by macros in the namespace
-# BISON-NAMESPACE).
+# -----------------------------------------------------
+# Complain if any name of type WHAT is used by the user (as recorded in
+# USER-LIST) but is not used by Bison (as recorded by macros in the
+# namespace BISON-NAMESPACE).
 #
-# USER-LIST must expand to a list specifying all grammar occurrences of all
-# names of type WHAT.   Each item in the list must be a triplet specifying one
+# USER-LIST must expand to a list specifying all user occurrences of all names
+# of type WHAT.   Each item in the list must be a triplet specifying one
 # occurrence: name, start boundary, and end boundary.  Empty string names are
 # fine.  An empty list is fine.
 #
@@ -353,19 +338,35 @@ m4_pushdef([b4_user_name], m4_car(b4_occurrence))dnl
 m4_pushdef([b4_start], m4_car(m4_shift(b4_occurrence)))dnl
 m4_pushdef([b4_end], m4_shift(m4_shift(b4_occurrence)))dnl
 m4_ifndef($3[(]m4_quote(b4_user_name)[)],
-          [b4_warn_at([b4_start], [b4_end],
-                      [[%s `%s' is not used]],
-                      [$1], [b4_user_name])])[]dnl
+          [b4_complain_at([b4_start], [b4_end],
+                          [[%s '%s' is not used]],
+                          [$1], [b4_user_name])])[]dnl
 m4_popdef([b4_occurrence])dnl
 m4_popdef([b4_user_name])dnl
 m4_popdef([b4_start])dnl
 m4_popdef([b4_end])dnl
 ])])
 
-# b4_percent_define_get(VARIABLE)
+
+
+
+## --------------------- ##
+## b4_percent_define_*.  ##
+## --------------------- ##
+
+
+# b4_percent_define_use(VARIABLE)
 # -------------------------------
-# Mimic muscle_percent_define_get in ../src/muscle_tab.h exactly.  That is, if
-# the %define variable VARIABLE is defined, emit its value.  Also, record
+# Declare that VARIABLE was used.
+m4_define([b4_percent_define_use],
+[m4_define([b4_percent_define_bison_variables(]$1[)])dnl
+])
+
+# b4_percent_define_get(VARIABLE, [DEFAULT])
+# ------------------------------------------
+# Mimic muscle_percent_define_get in ../src/muscle-tab.h.  That is, if
+# the %define variable VARIABLE is defined, emit its value.  Contrary
+# to its C counterpart, return DEFAULT otherwise.  Also, record
 # Bison's usage of VARIABLE by defining
 # b4_percent_define_bison_variables(VARIABLE).
 #
@@ -373,12 +374,15 @@ m4_popdef([b4_end])dnl
 #
 #   b4_percent_define_get([[foo]])
 m4_define([b4_percent_define_get],
-[m4_define([b4_percent_define_bison_variables(]$1[)])dnl
-m4_ifdef([b4_percent_define(]$1[)], [m4_indir([b4_percent_define(]$1[)])])])
+[b4_percent_define_use([$1])dnl
+m4_ifdef([b4_percent_define(]$1[)],
+         [m4_indir([b4_percent_define(]$1[)])],
+         [$2])])
+
 
 # b4_percent_define_get_loc(VARIABLE)
 # -----------------------------------
-# Mimic muscle_percent_define_get_loc in ../src/muscle_tab.h exactly.  That is,
+# Mimic muscle_percent_define_get_loc in ../src/muscle-tab.h exactly.  That is,
 # if the %define variable VARIABLE is undefined, complain fatally since that's
 # a Bison or skeleton error.  Otherwise, return its definition location in a
 # form approriate for the first two arguments of b4_warn_at, b4_complain_at, or
@@ -393,11 +397,11 @@ m4_define([b4_percent_define_get_loc],
           [m4_pushdef([b4_loc], m4_indir([b4_percent_define_loc(]$1[)]))dnl
 b4_loc[]dnl
 m4_popdef([b4_loc])],
-          [b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_get_loc]], [$1])])])
+          [b4_fatal([[b4_percent_define_get_loc: undefined %%define variable '%s']], [$1])])])
 
 # b4_percent_define_get_syncline(VARIABLE)
 # ----------------------------------------
-# Mimic muscle_percent_define_get_syncline in ../src/muscle_tab.h exactly.
+# Mimic muscle_percent_define_get_syncline in ../src/muscle-tab.h exactly.
 # That is, if the %define variable VARIABLE is undefined, complain fatally
 # since that's a Bison or skeleton error.  Otherwise, return its definition
 # location as a b4_syncline invocation.  Don't record this as a Bison usage of
@@ -410,11 +414,11 @@ m4_popdef([b4_loc])],
 m4_define([b4_percent_define_get_syncline],
 [m4_ifdef([b4_percent_define_syncline(]$1[)],
           [m4_indir([b4_percent_define_syncline(]$1[)])],
-          [b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_get_syncline]], [$1])])])
+          [b4_fatal([[b4_percent_define_get_syncline: undefined %%define variable '%s']], [$1])])])
 
 # b4_percent_define_ifdef(VARIABLE, IF-TRUE, [IF-FALSE])
 # ------------------------------------------------------
-# Mimic muscle_percent_define_ifdef in ../src/muscle_tab.h exactly.  That is,
+# Mimic muscle_percent_define_ifdef in ../src/muscle-tab.h exactly.  That is,
 # if the %define variable VARIABLE is defined, expand IF-TRUE, else expand
 # IF-FALSE.  Also, record Bison's usage of VARIABLE by defining
 # b4_percent_define_bison_variables(VARIABLE).
@@ -429,7 +433,7 @@ m4_define([b4_percent_define_ifdef],
 
 # b4_percent_define_flag_if(VARIABLE, IF-TRUE, [IF-FALSE])
 # --------------------------------------------------------
-# Mimic muscle_percent_define_flag_if in ../src/muscle_tab.h exactly.  That is,
+# Mimic muscle_percent_define_flag_if in ../src/muscle-tab.h exactly.  That is,
 # if the %define variable VARIABLE is defined to "" or "true", expand IF-TRUE.
 # If it is defined to "false", expand IF-FALSE.  Complain if it is undefined
 # (a Bison or skeleton error since the default value should have been set
@@ -445,14 +449,14 @@ m4_define([b4_percent_define_flag_if],
   [m4_case(b4_percent_define_get([$1]),
            [], [$2], [true], [$2], [false], [$3],
            [m4_expand_once([b4_complain_at(b4_percent_define_get_loc([$1]),
-                                           [[invalid value for %%define Boolean variable `%s']],
+                                           [[invalid value for %%define Boolean variable '%s']],
                                            [$1])],
                            [[b4_percent_define_flag_if($1)]])])],
-  [b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_flag_if]], [$1])])])
+  [b4_fatal([[b4_percent_define_flag_if: undefined %%define variable '%s']], [$1])])])
 
 # b4_percent_define_default(VARIABLE, DEFAULT)
 # --------------------------------------------
-# Mimic muscle_percent_define_default in ../src/muscle_tab.h exactly.  That is,
+# Mimic muscle_percent_define_default in ../src/muscle-tab.h exactly.  That is,
 # if the %define variable VARIABLE is undefined, set its value to DEFAULT.
 # Don't record this as a Bison usage of VARIABLE as there's no reason to
 # suspect that the value has yet influenced the output.
@@ -464,14 +468,13 @@ m4_define([b4_percent_define_default],
 [m4_ifndef([b4_percent_define(]$1[)],
            [m4_define([b4_percent_define(]$1[)], [$2])dnl
             m4_define([b4_percent_define_loc(]$1[)],
-                      [[[[[Bison:b4_percent_define_default]:1.0]], [[[Bison:b4_percent_define_default]:1.0]]]])dnl
-            m4_define([b4_percent_define_syncline(]$1[)],
-                      [[]b4_syncline(1, [["[Bison:b4_percent_define_default]"]])[
-]])])])
+                      [[[[<skeleton default value>:-1.-1]],
+                        [[<skeleton default value>:-1.-1]]]])dnl
+            m4_define([b4_percent_define_syncline(]$1[)], [[]])])])
 
 # b4_percent_define_check_values(VALUES)
 # --------------------------------------
-# Mimic muscle_percent_define_check_values in ../src/muscle_tab.h exactly
+# Mimic muscle_percent_define_check_values in ../src/muscle-tab.h exactly
 # except that the VALUES structure is more appropriate for M4.  That is, VALUES
 # is a list of sublists of strings.  For each sublist, the first string is the
 # name of a %define variable, and all remaining strings in that sublist are the
@@ -498,11 +501,15 @@ m4_define([_b4_percent_define_check_values],
                             [m4_define([b4_good_value], [1])])])])dnl
    m4_if(b4_good_value, [0],
          [b4_complain_at(b4_percent_define_get_loc([$1]),
-                         [[invalid value for %%define variable `%s': `%s']],
+                         [[invalid value for %%define variable '%s': '%s']],
                          [$1],
-                         m4_dquote(m4_indir([b4_percent_define(]$1[)])))])dnl
+                         m4_dquote(m4_indir([b4_percent_define(]$1[)])))
+          m4_foreach([b4_value], m4_dquote(m4_shift($@)),
+                     [b4_complain_at(b4_percent_define_get_loc([$1]),
+                                     [[accepted value: '%s']],
+                                     m4_dquote(b4_value))])])dnl
    m4_popdef([b4_good_value])],
-  [b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_check_values]], [$1])])])
+  [b4_fatal([[b4_percent_define_check_values: undefined %%define variable '%s']], [$1])])])
 
 # b4_percent_code_get([QUALIFIER])
 # --------------------------------
@@ -554,3 +561,26 @@ m4_wrap_lifo([
 b4_check_user_names_wrap([[define]], [[variable]])
 b4_check_user_names_wrap([[code]], [[qualifier]])
 ])
+
+
+## ---------------- ##
+## Default values.  ##
+## ---------------- ##
+
+# m4_define_default([b4_lex_param], [])   dnl breaks other skeletons
+m4_define_default([b4_pre_prologue], [])
+m4_define_default([b4_post_prologue], [])
+m4_define_default([b4_epilogue], [])
+m4_define_default([b4_parse_param], [])
+
+# The initial column and line.
+m4_define_default([b4_location_initial_column], [1])
+m4_define_default([b4_location_initial_line],   [1])
+
+# Sanity checks.
+b4_percent_define_ifdef([api.prefix],
+[m4_ifdef([b4_prefix],
+[b4_complain_at(b4_percent_define_get_loc([api.prefix]),
+                [['%s' and '%s' cannot be used together]],
+                [%name-prefix],
+                [%define api.prefix])])])

data/c++-skel.m4

@@ -1,7 +1,8 @@
                                                             -*- Autoconf -*-
 
 # C++ skeleton dispatching for Bison.
-# Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+
+# Copyright (C) 2006-2007, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

data/c++.m4

@@ -2,8 +2,7 @@
 
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,7 +25,12 @@ m4_include(b4_pkgdatadir/[c.m4])
 
 # Default parser class name.
 b4_percent_define_default([[parser_class_name]], [[parser]])
-b4_percent_define_default([[location_type]], [[location]])
+
+# Don't do that so that we remember whether we're using a user
+# request, or the default value.
+#
+# b4_percent_define_default([[location_type]], [[location]])
+
 b4_percent_define_default([[filename_type]], [[std::string]])
 b4_percent_define_default([[namespace]], m4_defn([b4_prefix]))
 b4_percent_define_default([[global_tokens_and_yystype]], [[false]])
@@ -74,10 +78,10 @@ m4_define([b4_namespace_open],
 
 m4_define([b4_namespace_close],
 [b4_user_code([b4_percent_define_get_syncline([[namespace]])
-m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref),
-                                    [^\(.\)[	 ]*\(::\)?\([^][:]\|:[^][:]\)*],
+m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref[ ]),
+                                    [^\(.\)[	 ]*\(::\)?\([^][:]\|:[^:]\)*],
                                     [\1])),
-             [::\([^][:]\|:[^][:]\)*], [} ])[} // ]b4_namespace_ref])])
+             [::\([^][:]\|:[^:]\)*], [} ])[} // ]b4_namespace_ref])])
 
 
 # b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
@@ -93,6 +97,8 @@ m4_map_sep([     b4_token_enum], [,
 ])
 
 
+
+
 ## ----------------- ##
 ## Semantic Values.  ##
 ## ----------------- ##
@@ -168,3 +174,32 @@ m4_define([b4_cc_var_decls],
 ], [$@])])
 m4_define([b4_cc_var_decl],
 	  [    $1;])
+
+
+## ---------##
+## Values.  ##
+## ---------##
+
+# b4_yylloc_default_define
+# ------------------------
+# Define YYLLOC_DEFAULT.
+m4_define([b4_yylloc_default_define],
+[[/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+# ifndef YYLLOC_DEFAULT
+#  define YYLLOC_DEFAULT(Current, Rhs, N)                               \
+    do                                                                  \
+      if (N)                                                            \
+        {                                                               \
+          (Current).begin  = YYRHSLOC (Rhs, 1).begin;                   \
+          (Current).end    = YYRHSLOC (Rhs, N).end;                     \
+        }                                                               \
+      else                                                              \
+        {                                                               \
+          (Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end;      \
+        }                                                               \
+    while (/*CONSTCOND*/ false)
+# endif
+]])

data/c-skel.m4

@@ -1,7 +1,8 @@
                                                             -*- Autoconf -*-
 
 # C skeleton dispatching for Bison.
-# Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+
+# Copyright (C) 2006-2007, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

data/c.m4

@@ -1,8 +1,8 @@
                                                             -*- Autoconf -*-
 
 # C M4 Macros for Bison.
-# Copyright (C) 2002, 2004, 2005, 2006, 2007, 2008 Free Software
-# Foundation, Inc.
+
+# Copyright (C) 2002, 2004-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -17,6 +17,33 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+
+# b4_tocpp(STRING)
+# ----------------
+# Convert STRING into a valid C macro name.
+m4_define([b4_tocpp],
+[m4_toupper(m4_bpatsubst(m4_quote($1), [[^a-zA-Z0-9]+], [_]))])
+
+
+# b4_cpp_guard(FILE)
+# ------------------
+# A valid C macro name to use as a CPP header guard for FILE.
+m4_define([b4_cpp_guard],
+[b4_tocpp(m4_defn([b4_prefix])/[$1])])
+
+
+# b4_cpp_guard_open(FILE)
+# b4_cpp_guard_close(FILE)
+# ------------------------
+# Open/close CPP inclusion guards for FILE.
+m4_define([b4_cpp_guard_open],
+[#ifndef b4_cpp_guard([$1])
+# define b4_cpp_guard([$1])])
+
+m4_define([b4_cpp_guard_close],
+[#endif b4_comment([!b4_cpp_guard([$1])])])
+
+
 ## ---------------- ##
 ## Identification.  ##
 ## ---------------- ##
@@ -31,7 +58,7 @@ m4_define([b4_comment], [/* m4_bpatsubst([$1], [
 # -----------------
 # Depends on individual skeletons to define b4_pure_flag, b4_push_flag, or
 # b4_pull_flag if they use the values of the %define variables api.pure or
-# api.push_pull.
+# api.push-pull.
 m4_define([b4_identification],
 [[/* Identify Bison output.  */
 #define YYBISON 1
@@ -50,9 +77,6 @@ m4_define([b4_identification],
 
 /* Pull parsers.  */
 #define YYPULL ]b4_pull_flag])[
-
-/* Using locations.  */
-#define YYLSP_NEEDED ]b4_locations_flag[
 ]])
 
 
@@ -60,11 +84,24 @@ m4_define([b4_identification],
 ## Default values.  ##
 ## ---------------- ##
 
-# If the %union is not named, its name is YYSTYPE.
-m4_define_default([b4_union_name], [YYSTYPE])
+# b4_api_prefix, b4_api_PREFIX
+# ----------------------------
+# Corresponds to %define api.prefix
+b4_percent_define_default([[api.prefix]], [[yy]])
+m4_define([b4_api_prefix],
+[b4_percent_define_get([[api.prefix]])])
+m4_define([b4_api_PREFIX],
+[m4_toupper(b4_api_prefix)])
+
+
+# b4_prefix
+# ---------
+# If the %name-prefix is not given, it is api.prefix.
+m4_define_default([b4_prefix], [b4_api_prefix])
+
+# If the %union is not named, its name is YYSTYPE.
+m4_define_default([b4_union_name], [b4_api_PREFIX[]STYPE])
 
-# If the %name-prefix is not given, it is yy.
-m4_define_default([b4_prefix], [yy])
 
 ## ------------------------ ##
 ## Pure/impure interfaces.  ##
@@ -134,17 +171,43 @@ m4_define([b4_int_type_for],
 [b4_int_type($1_min, $1_max)])
 
 
+# b4_table_value_equals(TABLE, VALUE, LITERAL)
+# --------------------------------------------
+# Without inducing a comparison warning from the compiler, check if the
+# literal value LITERAL equals VALUE from table TABLE, which must have
+# TABLE_min and TABLE_max defined.  YYID must be defined as an identity
+# function that suppresses warnings about constant conditions.
+m4_define([b4_table_value_equals],
+[m4_if(m4_eval($3 < m4_indir([b4_]$1[_min])
+               || m4_indir([b4_]$1[_max]) < $3), [1],
+       [[YYID (0)]],
+       [[((]$2[) == (]$3[))]])])
+
 
 ## ---------##
 ## Values.  ##
 ## ---------##
 
-# b4_null
----------
-# Return a null pointer constant.  NULL infringes on the user name
-# space in C, so use 0 rather than NULL.
-m4_define([b4_null], [0])
 
+# b4_null_define
+# --------------
+# Portability issues: define a YY_NULL appropriate for the current
+# language (C, C++98, or C++11).
+m4_define([b4_null_define],
+[# ifndef YY_NULL
+#  if defined __cplusplus && 201103L <= __cplusplus
+#   define YY_NULL nullptr
+#  else
+#   define YY_NULL 0
+#  endif
+# endif[]dnl
+])
+
+
+# b4_null
+# -------
+# Return a null pointer constant.
+m4_define([b4_null], [YY_NULL])
 
 
 
@@ -182,18 +245,18 @@ m4_define([b4_token_enum],
 # Output the definition of the tokens (if there are) as enums.
 m4_define([b4_token_enums],
 [m4_if([$#$1], [1], [],
-[/* Tokens.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
+[[/* Tokens.  */
+#ifndef ]b4_api_PREFIX[TOKENTYPE
+# define ]b4_api_PREFIX[TOKENTYPE
    /* Put the tokens into the symbol table, so that GDB and other debuggers
       know about them.  */
-   enum yytokentype {
-m4_map_sep([     b4_token_enum], [,
+   enum ]b4_api_prefix[tokentype {
+]m4_map_sep([     b4_token_enum], [,
 ],
-	   [$@])
+	   [$@])[
    };
 #endif
-])])
+]])])
 
 
 # b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
@@ -430,6 +493,8 @@ m4_define_default([b4_yy_symbol_print_generate],
 b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
 m4_ifset([b4_parse_param], [, b4_parse_param]))[
 {
+  FILE *yyo = yyoutput;
+  YYUSE (yyo);
   if (!yyvaluep)
     return;
 ]b4_locations_if([  YYUSE (yylocationp);
@@ -475,3 +540,102 @@ b4_locations_if([, yylocationp])[]b4_user_args[);
   YYFPRINTF (yyoutput, ")");
 }]dnl
 ])
+
+## -------------- ##
+## Declarations.  ##
+## -------------- ##
+
+# b4_declare_yylstype
+# -------------------
+# Declarations that might either go into the header (if --defines) or
+# in the parser body.  Declare YYSTYPE/YYLTYPE, and yylval/yylloc.
+m4_define([b4_declare_yylstype],
+[[#if ! defined ]b4_api_PREFIX[STYPE && ! defined ]b4_api_PREFIX[STYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[[typedef union ]b4_union_name[
+{
+]b4_user_stype[
+} ]b4_api_PREFIX[STYPE;
+# define ]b4_api_PREFIX[STYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int ]b4_api_PREFIX[STYPE;
+# define ]b4_api_PREFIX[STYPE_IS_TRIVIAL 1]])])[
+# define ]b4_api_prefix[stype ]b4_api_PREFIX[STYPE /* obsolescent; will be withdrawn */
+# define ]b4_api_PREFIX[STYPE_IS_DECLARED 1
+#endif]b4_locations_if([[
+
+#if ! defined ]b4_api_PREFIX[LTYPE && ! defined ]b4_api_PREFIX[LTYPE_IS_DECLARED
+typedef struct ]b4_api_PREFIX[LTYPE
+{
+  int first_line;
+  int first_column;
+  int last_line;
+  int last_column;
+} ]b4_api_PREFIX[LTYPE;
+# define ]b4_api_prefix[ltype ]b4_api_PREFIX[LTYPE /* obsolescent; will be withdrawn */
+# define ]b4_api_PREFIX[LTYPE_IS_DECLARED 1
+# define ]b4_api_PREFIX[LTYPE_IS_TRIVIAL 1
+#endif]])
+
+b4_pure_if([], [[extern ]b4_api_PREFIX[STYPE ]b4_prefix[lval;
+]b4_locations_if([[extern ]b4_api_PREFIX[LTYPE ]b4_prefix[lloc;]])])[]dnl
+])
+
+# b4_YYDEBUG_define
+# ------------------
+m4_define([b4_YYDEBUG_define],
+[[/* Enabling traces.  */
+]m4_if(b4_api_prefix, [yy],
+[[#ifndef YYDEBUG
+# define YYDEBUG ]b4_debug_flag[
+#endif]],
+[[#ifndef ]b4_api_PREFIX[DEBUG
+# if defined YYDEBUG
+#  if YYDEBUG
+#   define ]b4_api_PREFIX[DEBUG 1
+#  else
+#   define ]b4_api_PREFIX[DEBUG 0
+#  endif
+# else /* ! defined YYDEBUG */
+#  define ]b4_api_PREFIX[DEBUG ]b4_debug_flag[
+# endif /* ! defined ]b4_api_PREFIX[DEBUG */
+#endif  /* ! defined ]b4_api_PREFIX[DEBUG */]])[]dnl
+])
+
+# b4_declare_yydebug
+# ------------------
+m4_define([b4_declare_yydebug],
+[b4_YYDEBUG_define[
+#if ]b4_api_PREFIX[DEBUG
+extern int ]b4_prefix[debug;
+#endif][]dnl
+])
+
+# b4_yylloc_default_define
+# ------------------------
+# Define YYLLOC_DEFAULT.
+m4_define([b4_yylloc_default_define],
+[[/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)                                \
+    do                                                                  \
+      if (YYID (N))                                                     \
+        {                                                               \
+          (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
+          (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
+          (Current).last_line    = YYRHSLOC (Rhs, N).last_line;         \
+          (Current).last_column  = YYRHSLOC (Rhs, N).last_column;       \
+        }                                                               \
+      else                                                              \
+        {                                                               \
+          (Current).first_line   = (Current).last_line   =              \
+            YYRHSLOC (Rhs, 0).last_line;                                \
+          (Current).first_column = (Current).last_column =              \
+            YYRHSLOC (Rhs, 0).last_column;                              \
+        }                                                               \
+    while (YYID (0))
+#endif
+]])

data/glr.cc

@@ -1,8 +1,8 @@
                                                                     -*- C -*-
 
 # C++ GLR skeleton for Bison
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
-# Inc.
+
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -54,7 +54,8 @@ b4_defines_if([],
               [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
 
 m4_include(b4_pkgdatadir/[c++.m4])
-m4_include(b4_pkgdatadir/[location.cc])
+b4_percent_define_ifdef([[location_type]], [],
+                        [m4_include(b4_pkgdatadir/[location.cc])])
 
 m4_define([b4_parser_class_name],
           [b4_percent_define_get([[parser_class_name]])])
@@ -77,10 +78,10 @@ m4_define([b4_yy_symbol_print_generate],
     [static void],
     [[FILE *],               []],
     [[int yytype],           [yytype]],
-    [[const b4_namespace_ref::b4_parser_class_name::semantic_type *yyvaluep],
-			     [yyvaluep]],
-    [[const b4_namespace_ref::b4_parser_class_name::location_type *yylocationp],
-			     [yylocationp]],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::semantic_type *yyvaluep],
+                             [yyvaluep]],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp],
+                             [yylocationp]],
     b4_parse_param)[
 {
 ]b4_parse_param_use[]dnl
@@ -89,18 +90,22 @@ m4_define([b4_yy_symbol_print_generate],
 ]])
 
 
-# Declare yyerror.
+# Hijack the post prologue to insert early definition of YYLLOC_DEFAULT
+# and declaration of yyerror.
 m4_append([b4_post_prologue],
-[b4_syncline([@oline@], [@ofile@])
-
-b4_c_ansi_function_decl([yyerror],
+[b4_syncline([@oline@], [@ofile@])[
+]b4_yylloc_default_define[
+#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
+]b4_c_ansi_function_decl([yyerror],
     [static void],
-    [[b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], [yylocationp]],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp],
+                        [yylocationp]],
     b4_parse_param,
     [[const char* msg], [msg]])])
 
 
-# Define yyerror.
+# Hijack the epilogue to define implementations (yyerror, parser member
+# functions etc.).
 m4_append([b4_epilogue],
 [b4_syncline([@oline@], [@ofile@])[
 /*------------------.
@@ -109,7 +114,8 @@ m4_append([b4_epilogue],
 
 ]b4_c_ansi_function_def([yyerror],
     [static void],
-    [[b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], [yylocationp]],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp],
+                        [yylocationp]],
     b4_parse_param,
     [[const char* msg], [msg]])[
 {
@@ -124,7 +130,7 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
 [  /// Build a parser object.
   ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
     :])[
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
     ]m4_ifset([b4_parse_param], [  ], [ :])[yydebug_ (false),
       yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
 #endif]b4_parse_param_cons[
@@ -141,34 +147,38 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
     return ::yyparse (*this]b4_user_args[);
   }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   /*--------------------.
   | Print this symbol.  |
   `--------------------*/
 
   inline void
   ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype,
-			   const semantic_type* yyvaluep, const location_type* yylocationp)
+                           const semantic_type* yyvaluep,
+                           const location_type* yylocationp)
   {
-    /* Pacify ``unused variable'' warnings.  */
-    YYUSE (yyvaluep);
     YYUSE (yylocationp);
+    YYUSE (yyvaluep);
+    std::ostream& yyoutput = debug_stream ();
+    std::ostream& yyo = yyoutput;
+    YYUSE (yyo);
     switch (yytype)
       {
   ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
 [        default:
-	  break;
+          break;
       }
   }
 
 
   void
   ]b4_parser_class_name[::yy_symbol_print_ (int yytype,
-			   const semantic_type* yyvaluep, const location_type* yylocationp)
+                           const semantic_type* yyvaluep,
+                           const location_type* yylocationp)
   {
     *yycdebug_ << (yytype < YYNTOKENS ? "token" : "nterm")
-	       << ' ' << yytname[yytype] << " ("
-	       << *yylocationp << ": ";
+               << ' ' << yytname[yytype] << " ("
+               << *yylocationp << ": ";
     yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
     *yycdebug_ << ')';
   }
@@ -208,62 +218,31 @@ b4_namespace_close[
 # Let glr.c believe that the user arguments include the parser itself.
 m4_ifset([b4_parse_param],
 [m4_pushdef([b4_parse_param],
-	    m4_dquote([[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]],]
-m4_defn([b4_parse_param])))],
+            [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]],]
+m4_defn([b4_parse_param]))],
 [m4_pushdef([b4_parse_param],
-	    [[[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]]]])
+            [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]]])
 ])
 m4_include(b4_pkgdatadir/[glr.c])
 m4_popdef([b4_parse_param])
 
 m4_divert_push(0)
-@output(b4_spec_defines_file@)
+@output(b4_spec_defines_file@)@
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
+             [2002-2006, 2009-2012])[
 
 /* C++ GLR parser skeleton written by Akim Demaille.  */
 
-#ifndef PARSER_HEADER_H
-# define PARSER_HEADER_H
+]b4_cpp_guard_open([b4_spec_defines_file])[
 
 ]b4_percent_code_get([[requires]])[
 
-#include <string>
-#include <iostream>
+# include <string>
+# include <iostream>
+]b4_percent_define_ifdef([[location_type]], [],
+                         [[# include "location.hh"]])[
 
-/* Using locations.  */
-#define YYLSP_NEEDED ]b4_locations_flag[
-
-]b4_namespace_open[
-  class position;
-  class location;
-]b4_namespace_close[
-
-#include "location.hh"
-
-/* Enabling traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG ]b4_debug_flag[
-#endif
-
-/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
-   If N is 0, then set CURRENT to the empty location which ends
-   the previous symbol: RHS[0] (always defined).  */
-
-#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N)				\
-    do									\
-      if (N)								\
-	{								\
-	  (Current).begin  = YYRHSLOC (Rhs, 1).begin;			\
-	  (Current).end    = YYRHSLOC (Rhs, N).end;			\
-	}								\
-      else								\
-	{								\
-	  (Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end;	\
-	}								\
-    while (/*CONSTCOND*/ 0)
-#endif
+]b4_YYDEBUG_define[
 
 ]b4_namespace_open[
   /// A Bison parser.
@@ -271,7 +250,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C++],
   {
   public:
     /// Symbol semantic values.
-#ifndef YYSTYPE
+# ifndef ]b4_api_PREFIX[STYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
     {
@@ -279,12 +258,13 @@ b4_user_stype
     };],
 [m4_if(b4_tag_seen_flag, 0,
 [[    typedef int semantic_type;]],
-[[    typedef YYSTYPE semantic_type;]])])[
-#else
-    typedef YYSTYPE semantic_type;
-#endif
+[[    typedef ]b4_api_PREFIX[STYPE semantic_type;]])])[
+# else
+    typedef ]b4_api_PREFIX[STYPE semantic_type;
+# endif
     /// Symbol locations.
-    typedef ]b4_percent_define_get([[location_type]])[ location_type;
+    typedef ]b4_percent_define_get([[location_type]],
+                                   [[location]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -322,38 +302,27 @@ b4_user_stype
     virtual void error (const location_type& loc, const std::string& msg);
   private:
 
-#if YYDEBUG
+# if ]b4_api_PREFIX[DEBUG
   public:
     /// \brief Report a symbol value on the debug stream.
     /// \param yytype       The token type.
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.
     virtual void yy_symbol_value_print_ (int yytype,
-					 const semantic_type* yyvaluep,
-					 const location_type* yylocationp);
+                                         const semantic_type* yyvaluep,
+                                         const location_type* yylocationp);
     /// \brief Report a symbol on the debug stream.
     /// \param yytype       The token type.
     /// \param yyvaluep     Its semantic value.
     /// \param yylocationp  Its location.
     virtual void yy_symbol_print_ (int yytype,
-				   const semantic_type* yyvaluep,
-				   const location_type* yylocationp);
+                                   const semantic_type* yyvaluep,
+                                   const location_type* yylocationp);
   private:
     /* Debugging.  */
     int yydebug_;
     std::ostream* yycdebug_;
-#endif
-
-
-    /// \brief Reclaim the memory associated to a symbol.
-    /// \param yymsg        Why this token is reclaimed.
-    /// \param yytype       The symbol type.
-    /// \param yyvaluep     Its semantic value.
-    /// \param yylocationp  Its location.
-    inline void yydestruct_ (const char* yymsg,
-			     int yytype,
-			     semantic_type* yyvaluep,
-			     location_type* yylocationp);
+# endif
 
 ]b4_parse_param_vars[
   };
@@ -362,16 +331,14 @@ b4_user_stype
 b4_percent_define_flag_if([[global_tokens_and_yystype]],
 [b4_token_defines(b4_tokens)])
 [
-#ifndef YYSTYPE
-# define YYSTYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type
+#ifndef ]b4_api_PREFIX[STYPE
+# define ]b4_api_PREFIX[STYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type
 #endif
-#ifndef YYLTYPE
-# define YYLTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type
+#ifndef ]b4_api_PREFIX[LTYPE
+# define ]b4_api_PREFIX[LTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type
 #endif
 
 ]b4_namespace_close[
-
-]b4_percent_code_get([[provides]])[]dnl
-
-[#endif /* ! defined PARSER_HEADER_H */]
-m4_divert_pop(0)
+]b4_percent_code_get([[provides]])[
+]b4_cpp_guard_close([b4_spec_defines_file])[
+]m4_divert_pop(0)

data/java-skel.m4

@@ -1,7 +1,8 @@
                                                             -*- Autoconf -*-
 
 # Java skeleton dispatching for Bison.
-# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

data/java.m4

@@ -2,7 +2,7 @@
 
 # Java language support for Bison
 
-# Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

data/lalr1.cc

@@ -1,7 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
-# Free Software Foundation, Inc.
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,73 +24,38 @@ m4_define([b4_parser_class_name],
 b4_defines_if([],
               [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
 
-# Backward compatibility.
-m4_define([b4_location_constructors])
-m4_include(b4_pkgdatadir/[location.cc])
+b4_percent_define_ifdef([[location_type]], [],
+  [# Backward compatibility.
+  m4_define([b4_location_constructors])
+  m4_include(b4_pkgdatadir/[location.cc])])
+m4_include(b4_pkgdatadir/[stack.hh])
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert_push(0)dnl
 b4_defines_if(
-[@output(b4_spec_defines_file@)
+[@output(b4_spec_defines_file@)@
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
-             [2002, 2003, 2004, 2005, 2006, 2007, 2008])
-dnl FIXME: This is wrong, we want computed header guards.
+             [2002-2012])
 [
+/**
+ ** \file ]b4_spec_defines_file[
+ ** Define the ]b4_namespace_ref[::parser class.
+ */
+
 /* C++ LALR(1) parser skeleton written by Akim Demaille.  */
 
-#ifndef PARSER_HEADER_H
-# define PARSER_HEADER_H
+]b4_cpp_guard_open([b4_spec_defines_file])[
 
 ]b4_percent_code_get([[requires]])[
 
 #include <string>
 #include <iostream>
 #include "stack.hh"
+]b4_percent_define_ifdef([[location_type]], [],
+                         [[#include "location.hh"]])[
 
-]b4_namespace_open[
-  class position;
-  class location;
-]b4_namespace_close[
-
-#include "location.hh"
-
-/* Enabling traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG ]b4_debug_flag[
-#endif
-
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE ]b4_error_verbose_flag[
-#endif
-
-/* Enabling the token table.  */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE ]b4_token_table[
-#endif
-
-/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
-   If N is 0, then set CURRENT to the empty location which ends
-   the previous symbol: RHS[0] (always defined).  */
-
-#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N)		\
-do {							\
-  if (N)						\
-    {							\
-      (Current).begin = (Rhs)[1].begin;			\
-      (Current).end   = (Rhs)[N].end;			\
-    }							\
-  else							\
-    {							\
-      (Current).begin = (Current).end = (Rhs)[0].end;	\
-    }							\
-} while (false)
-#endif
+]b4_YYDEBUG_define[
 
 ]b4_namespace_open[
 
@@ -100,7 +64,7 @@ do {							\
   {
   public:
     /// Symbol semantic values.
-#ifndef YYSTYPE
+#ifndef ]b4_api_PREFIX[STYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
     {
@@ -108,12 +72,13 @@ b4_user_stype
     };],
 [m4_if(b4_tag_seen_flag, 0,
 [[    typedef int semantic_type;]],
-[[    typedef YYSTYPE semantic_type;]])])[
+[[    typedef ]b4_api_PREFIX[STYPE semantic_type;]])])[
 #else
-    typedef YYSTYPE semantic_type;
+    typedef ]b4_api_PREFIX[STYPE semantic_type;
 #endif
     /// Symbol locations.
-    typedef ]b4_percent_define_get([[location_type]])[ location_type;
+    typedef ]b4_percent_define_get([[location_type]],
+                                   [[location]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -130,7 +95,7 @@ b4_user_stype
     /// \returns  0 iff parsing succeeded.
     virtual int parse ();
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
     /// The current debugging stream.
     std::ostream& debug_stream () const;
     /// Set the current debugging stream.
@@ -153,10 +118,9 @@ b4_user_stype
     /// Generate an error message.
     /// \param state   the state where the error occurred.
     /// \param tok     the lookahead token.
-    virtual std::string yysyntax_error_ (int yystate]dnl
-b4_error_verbose_if([, int tok])[);
+    virtual std::string yysyntax_error_ (int yystate, int tok);
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
     /// \brief Report a symbol value on the debug stream.
     /// \param yytype       The token type.
     /// \param yyvaluep     Its semantic value.
@@ -190,6 +154,14 @@ b4_error_verbose_if([, int tok])[);
     /// The location stack.
     location_stack_type yylocation_stack_;
 
+    /// Whether the given \c yypact_ value indicates a defaulted state.
+    /// \param yyvalue   the value to check
+    static bool yy_pact_value_is_default_ (int yyvalue);
+
+    /// Whether the given \c yytable_ value indicates a syntax error.
+    /// \param yyvalue   the value to check
+    static bool yy_table_value_is_error_ (int yyvalue);
+
     /// Internal symbol numbers.
     typedef ]b4_int_type_for([b4_translate])[ token_number_type;
     /* Tables.  */
@@ -197,7 +169,7 @@ b4_error_verbose_if([, int tok])[);
     static const ]b4_int_type_for([b4_pact])[ yypact_[];
     static const ]b4_int_type(b4_pact_ninf, b4_pact_ninf)[ yypact_ninf_;
 
-    /// For a state, default rule to reduce.
+    /// For a state, default reduction number.
     /// Unless\a  yytable_ specifies something else to do.
     /// Zero means the default is an error.
     static const ]b4_int_type_for([b4_defact])[ yydefact_[];
@@ -221,19 +193,15 @@ b4_error_verbose_if([, int tok])[);
     /// For a rule, its LHS.
     static const ]b4_int_type_for([b4_r1])[ yyr1_[];
     /// For a rule, its RHS length.
-    static const ]b4_int_type_for([b4_r2])[ yyr2_[];
+    static const ]b4_int_type_for([b4_r2])[ yyr2_[]; ]b4_error_verbose_if([
 
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+    /// Convert the symbol name \a n to a form suitable for a diagnostic.
+    static std::string yytnamerr_ (const char *n);])[
+
+]b4_token_table_if([], [[#if ]b4_api_PREFIX[DEBUG]])[
     /// For a symbol, its name in clear.
     static const char* const yytname_[];
-#endif
-
-#if YYERROR_VERBOSE
-    /// Convert the symbol name \a n to a form suitable for a diagnostic.
-    virtual std::string yytnamerr_ (const char *n);
-#endif
-
-#if YYDEBUG
+]b4_token_table_if([[#if ]b4_api_PREFIX[DEBUG]])[
     /// A type to store symbol numbers and -1.
     typedef ]b4_int_type_for([b4_rhs])[ rhs_number_type;
     /// A `-1'-separated list of the rules' RHS.
@@ -289,18 +257,17 @@ b4_error_verbose_if([, int tok])[);
 ]b4_percent_define_flag_if([[global_tokens_and_yystype]],
 [b4_token_defines(b4_tokens)
 
-#ifndef YYSTYPE
+#ifndef ]b4_api_PREFIX[STYPE
  /* Redirection for backward compatibility.  */
-# define YYSTYPE b4_namespace_ref::b4_parser_class_name::semantic_type
+# define ]b4_api_PREFIX[STYPE b4_namespace_ref::b4_parser_class_name::semantic_type
 #endif
-])
-b4_percent_code_get([[provides]])[]dnl
-
-[#endif /* ! defined PARSER_HEADER_H */]
+])[
+]b4_percent_code_get([[provides]])[
+]b4_cpp_guard_close([b4_spec_defines_file])
 ])dnl
-@output(b4_parser_file_name@)
+@output(b4_parser_file_name@)@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
-             [2002, 2003, 2004, 2005, 2006, 2007, 2008])
+             [2002-2012])
 b4_percent_code_get([[top]])[]dnl
 m4_if(b4_prefix, [yy], [],
 [
@@ -308,17 +275,19 @@ m4_if(b4_prefix, [yy], [],
 #define yylex   b4_prefix[]lex])[
 
 /* First part of user declarations.  */
-]b4_user_pre_prologue
+]b4_user_pre_prologue[
 
-b4_defines_if([[
+]b4_defines_if([[
 #include "@basename(]b4_spec_defines_file[@)"]])[
 
 /* User implementation prologue.  */
-]b4_user_post_prologue
-b4_percent_code_get[]dnl
+]b4_user_post_prologue[
+]b4_percent_code_get[
 
-[#ifndef YY_
-# if YYENABLE_NLS
+]b4_null_define[
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
 #   define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -329,11 +298,14 @@ b4_percent_code_get[]dnl
 # endif
 #endif
 
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+]b4_yylloc_default_define[
+
 /* Suppress unused-variable warnings by "using" E.  */
 #define YYUSE(e) ((void) (e))
 
 /* Enable debugging if requested.  */
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
 
 /* A pseudo ostream that takes yydebug_ into account.  */
 # define YYCDEBUG if (yydebug_) (*yycdebug_)
@@ -360,14 +332,14 @@ do {					\
     yystack_print_ ();			\
 } while (false)
 
-#else /* !YYDEBUG */
+#else /* !]b4_api_PREFIX[DEBUG */
 
 # define YYCDEBUG if (false) std::cerr
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
 # define YY_REDUCE_PRINT(Rule)
 # define YY_STACK_PRINT()
 
-#endif /* !YYDEBUG */
+#endif /* !]b4_api_PREFIX[DEBUG */
 
 #define yyerrok		(yyerrstatus_ = 0)
 #define yyclearin	(yychar = yyempty_)
@@ -377,8 +349,7 @@ do {					\
 #define YYERROR		goto yyerrorlab
 #define YYRECOVERING()  (!!yyerrstatus_)
 
-]b4_namespace_open[
-#if YYERROR_VERBOSE
+]b4_namespace_open[]b4_error_verbose_if([[
 
   /* Return YYSTR after stripping away unnecessary quotes and
      backslashes, so that it's suitable for yyerror.  The heuristic is
@@ -416,13 +387,12 @@ do {					\
 
     return yystr;
   }
-
-#endif
+]])[
 
   /// Build a parser object.
   ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
     :])[
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
     ]m4_ifset([b4_parse_param], [  ], [ :])[yydebug_ (false),
       yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
 #endif]b4_parse_param_cons[
@@ -433,7 +403,7 @@ do {					\
   {
   }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   /*--------------------------------.
   | Print this symbol on YYOUTPUT.  |
   `--------------------------------*/
@@ -444,6 +414,9 @@ do {					\
   {
     YYUSE (yylocationp);
     YYUSE (yyvaluep);
+    std::ostream& yyo = debug_stream ();
+    std::ostream& yyoutput = yyo;
+    YYUSE (yyoutput);
     switch (yytype)
       {
   ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
@@ -491,7 +464,7 @@ do {					\
     yylocation_stack_.pop (n);
   }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   std::ostream&
   ]b4_parser_class_name[::debug_stream () const
   {
@@ -518,6 +491,18 @@ do {					\
   }
 #endif
 
+  inline bool
+  ]b4_parser_class_name[::yy_pact_value_is_default_ (int yyvalue)
+  {
+    return yyvalue == yypact_ninf_;
+  }
+
+  inline bool
+  ]b4_parser_class_name[::yy_table_value_is_error_ (int yyvalue)
+  {
+    return yyvalue == yytable_ninf_;
+  }
+
   int
   ]b4_parser_class_name[::parse ()
   {
@@ -539,7 +524,7 @@ do {					\
     /// Location of the lookahead.
     location_type yylloc;
     /// The locations where the error started and ended.
-    location_type yyerror_range[2];
+    location_type yyerror_range[3];
 
     /// $$.
     semantic_type yyval;
@@ -584,7 +569,7 @@ m4_popdef([b4_at_dollar])])dnl
 
     /* Try to take a decision without lookahead.  */
     yyn = yypact_[yystate];
-    if (yyn == yypact_ninf_)
+    if (yy_pact_value_is_default_ (yyn))
       goto yydefault;
 
     /* Read a lookahead token.  */
@@ -592,7 +577,7 @@ m4_popdef([b4_at_dollar])])dnl
       {
 	YYCDEBUG << "Reading a token: ";
 	yychar = ]b4_c_function_call([yylex], [int],
-				     [[YYSTYPE*], [&yylval]][]dnl
+				     [b4_api_PREFIX[STYPE*], [&yylval]][]dnl
 b4_locations_if([, [[location*], [&yylloc]]])dnl
 m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
       }
@@ -620,8 +605,8 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
     yyn = yytable_[yyn];
     if (yyn <= 0)
       {
-	if (yyn == 0 || yyn == yytable_ninf_)
-	goto yyerrlab;
+	if (yy_table_value_is_error_ (yyn))
+	  goto yyerrlab;
 	yyn = -yyn;
 	goto yyreduce;
       }
@@ -679,6 +664,17 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
 	default:
           break;
       }
+    /* User semantic actions sometimes alter yychar, and that requires
+       that yytoken be updated with the new translation.  We take the
+       approach of translating immediately before every use of yytoken.
+       One alternative is translating here after every semantic action,
+       but that translation would be missed if the semantic action
+       invokes YYABORT, YYACCEPT, or YYERROR immediately after altering
+       yychar.  In the case of YYABORT or YYACCEPT, an incorrect
+       destructor might then be invoked immediately.  In the case of
+       YYERROR, subsequent parser actions might lead to an incorrect
+       destructor call or verbose syntax error message before the
+       lookahead is translated.  */
     YY_SYMBOL_PRINT ("-> $$ =", yyr1_[yyn], &yyval, &yyloc);
 
     yypop_ (yylen);
@@ -702,15 +698,20 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
   | yyerrlab -- here on detecting error |
   `------------------------------------*/
   yyerrlab:
+    /* Make sure we have latest lookahead translation.  See comments at
+       user semantic actions for why this is necessary.  */
+    yytoken = yytranslate_ (yychar);
+
     /* If not already recovering from an error, report this error.  */
     if (!yyerrstatus_)
       {
 	++yynerrs_;
-	error (yylloc, yysyntax_error_ (yystate]dnl
-b4_error_verbose_if([, yytoken])[));
+	if (yychar == yyempty_)
+	  yytoken = yyempty_;
+	error (yylloc, yysyntax_error_ (yystate, yytoken));
       }
 
-    yyerror_range[0] = yylloc;
+    yyerror_range[1] = yylloc;
     if (yyerrstatus_ == 3)
       {
 	/* If just tried and failed to reuse lookahead token after an
@@ -745,7 +746,7 @@ b4_error_verbose_if([, yytoken])[));
     if (false)
       goto yyerrorlab;
 
-    yyerror_range[0] = yylocation_stack_[yylen - 1];
+    yyerror_range[1] = yylocation_stack_[yylen - 1];
     /* Do not reclaim the symbols of the rule which action triggered
        this YYERROR.  */
     yypop_ (yylen);
@@ -762,7 +763,7 @@ b4_error_verbose_if([, yytoken])[));
     for (;;)
       {
 	yyn = yypact_[yystate];
-	if (yyn != yypact_ninf_)
+	if (!yy_pact_value_is_default_ (yyn))
 	{
 	  yyn += yyterror_;
 	  if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
@@ -777,7 +778,7 @@ b4_error_verbose_if([, yytoken])[));
 	if (yystate_stack_.height () == 1)
 	YYABORT;
 
-	yyerror_range[0] = yylocation_stack_[0];
+	yyerror_range[1] = yylocation_stack_[0];
 	yydestruct_ ("Error: popping",
 		     yystos_[yystate],
 		     &yysemantic_stack_[0], &yylocation_stack_[0]);
@@ -786,10 +787,10 @@ b4_error_verbose_if([, yytoken])[));
 	YY_STACK_PRINT ();
       }
 
-    yyerror_range[1] = yylloc;
+    yyerror_range[2] = yylloc;
     // Using YYLLOC is tempting, but would change the location of
     // the lookahead.  YYLOC is available though.
-    YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+    YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
     yysemantic_stack_.push (yylval);
     yylocation_stack_.push (yyloc);
 
@@ -812,7 +813,13 @@ b4_error_verbose_if([, yytoken])[));
 
   yyreturn:
     if (yychar != yyempty_)
-      yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
+      {
+        /* Make sure we have latest lookahead translation.  See comments
+           at user semantic actions for why this is necessary.  */
+        yytoken = yytranslate_ (yychar);
+        yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval,
+                     &yylloc);
+      }
 
     /* Do not reclaim the symbols of the rule which action triggered
        this YYABORT or YYACCEPT.  */
@@ -831,52 +838,100 @@ b4_error_verbose_if([, yytoken])[));
 
   // Generate an error message.
   std::string
-  ]b4_parser_class_name[::yysyntax_error_ (int yystate]dnl
-b4_error_verbose_if([, int tok])[)
-  {
-    std::string res;
-    YYUSE (yystate);
-#if YYERROR_VERBOSE
-    int yyn = yypact_[yystate];
-    if (yypact_ninf_ < yyn && yyn <= yylast_)
+  ]b4_parser_class_name[::yysyntax_error_ (]dnl
+b4_error_verbose_if([int yystate, int yytoken],
+                    [int, int])[)
+  {]b4_error_verbose_if([[
+    std::string yyres;
+    // Number of reported tokens (one for the "unexpected", one per
+    // "expected").
+    size_t yycount = 0;
+    // Its maximum.
+    enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+    // Arguments of yyformat.
+    char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+
+    /* There are many possibilities here to consider:
+       - If this state is a consistent state with a default action, then
+         the only way this function was invoked is if the default action
+         is an error action.  In that case, don't check for expected
+         tokens because there are none.
+       - The only way there can be no lookahead present (in yytoken) is
+         if this state is a consistent state with a default action.
+         Thus, detecting the absence of a lookahead is sufficient to
+         determine that there is no unexpected or expected token to
+         report.  In that case, just report a simple "syntax error".
+       - Don't assume there isn't a lookahead just because this state is
+         a consistent state with a default action.  There might have
+         been a previous inconsistent state, consistent state with a
+         non-default action, or user semantic action that manipulated
+         yychar.
+       - Of course, the expected token list depends on states to have
+         correct lookahead information, and it depends on the parser not
+         to perform extra reductions after fetching a lookahead from the
+         scanner and before detecting a syntax error.  Thus, state
+         merging (from LALR or IELR) and default reductions corrupt the
+         expected token list.  However, the list is correct for
+         canonical LR with one exception: it will still contain any
+         token that will not be accepted due to an error action in a
+         later state.
+    */
+    if (yytoken != yyempty_)
       {
-	/* Start YYX at -YYN if negative to avoid negative indexes in
-	   YYCHECK.  */
-	int yyxbegin = yyn < 0 ? -yyn : 0;
-
-	/* Stay within bounds of both yycheck and yytname.  */
-	int yychecklim = yylast_ - yyn + 1;
-	int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
-	int count = 0;
-	for (int x = yyxbegin; x < yyxend; ++x)
-	  if (yycheck_[x + yyn] == x && x != yyterror_)
-	    ++count;
-
-	// FIXME: This method of building the message is not compatible
-	// with internationalization.  It should work like yacc.c does it.
-	// That is, first build a string that looks like this:
-	// "syntax error, unexpected %s or %s or %s"
-	// Then, invoke YY_ on this string.
-	// Finally, use the string as a format to output
-	// yytname_[tok], etc.
-	// Until this gets fixed, this message appears in English only.
-	res = "syntax error, unexpected ";
-	res += yytnamerr_ (yytname_[tok]);
-	if (count < 5)
-	  {
-	    count = 0;
-	    for (int x = yyxbegin; x < yyxend; ++x)
-	      if (yycheck_[x + yyn] == x && x != yyterror_)
-		{
-		  res += (!count++) ? ", expecting " : " or ";
-		  res += yytnamerr_ (yytname_[x]);
-		}
-	  }
+        yyarg[yycount++] = yytname_[yytoken];
+        int yyn = yypact_[yystate];
+        if (!yy_pact_value_is_default_ (yyn))
+          {
+            /* Start YYX at -YYN if negative to avoid negative indexes in
+               YYCHECK.  In other words, skip the first -YYN actions for
+               this state because they are default actions.  */
+            int yyxbegin = yyn < 0 ? -yyn : 0;
+            /* Stay within bounds of both yycheck and yytname.  */
+            int yychecklim = yylast_ - yyn + 1;
+            int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+            for (int yyx = yyxbegin; yyx < yyxend; ++yyx)
+              if (yycheck_[yyx + yyn] == yyx && yyx != yyterror_
+                  && !yy_table_value_is_error_ (yytable_[yyx + yyn]))
+                {
+                  if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+                    {
+                      yycount = 1;
+                      break;
+                    }
+                  else
+                    yyarg[yycount++] = yytname_[yyx];
+                }
+          }
       }
-    else
-#endif
-      res = YY_("syntax error");
-    return res;
+
+    char const* yyformat = YY_NULL;
+    switch (yycount)
+      {
+#define YYCASE_(N, S)                         \
+        case N:                               \
+          yyformat = S;                       \
+        break
+        YYCASE_(0, YY_("syntax error"));
+        YYCASE_(1, YY_("syntax error, unexpected %s"));
+        YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+        YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+        YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+        YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+#undef YYCASE_
+      }
+
+    // Argument number.
+    size_t yyi = 0;
+    for (char const* yyp = yyformat; *yyp; ++yyp)
+      if (yyp[0] == '%' && yyp[1] == 's' && yyi < yycount)
+        {
+          yyres += yytnamerr_ (yyarg[yyi++]);
+          ++yyp;
+        }
+      else
+        yyres += *yyp;
+    return yyres;]], [[
+    return YY_("syntax error");]])[
   }
 
 
@@ -889,9 +944,9 @@ b4_error_verbose_if([, int tok])[)
     ]b4_pact[
   };
 
-  /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
-     doesn't specify something else to do.  Zero means the default is an
-     error.  */
+  /* YYDEFACT[S] -- default reduction number in state S.  Performed when
+     YYTABLE doesn't specify something else to do.  Zero means the
+     default is an error.  */
   const ]b4_int_type_for([b4_defact])[
   ]b4_parser_class_name[::yydefact_[] =
   {
@@ -914,7 +969,7 @@ b4_error_verbose_if([, int tok])[)
 
   /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
      positive, shift that token.  If negative, reduce the rule which
-     number is the opposite.  If zero, do what YYDEFACT says.  */
+     number is the opposite.  If YYTABLE_NINF_, syntax error.  */
   const ]b4_int_type(b4_table_ninf, b4_table_ninf) b4_parser_class_name::yytable_ninf_ = b4_table_ninf[;
   const ]b4_int_type_for([b4_table])[
   ]b4_parser_class_name[::yytable_[] =
@@ -937,7 +992,7 @@ b4_error_verbose_if([, int tok])[)
     ]b4_stos[
   };
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
      to YYLEX-NUM.  */
   const ]b4_int_type_for([b4_toknum])[
@@ -961,7 +1016,7 @@ b4_error_verbose_if([, int tok])[)
     ]b4_r2[
   };
 
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+]b4_token_table_if([], [[#if ]b4_api_PREFIX[DEBUG]])[
   /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
      First, the terminals, then, starting at \a yyntokens_, nonterminals.  */
   const char*
@@ -969,9 +1024,8 @@ b4_error_verbose_if([, int tok])[)
   {
     ]b4_tname[
   };
-#endif
 
-#if YYDEBUG
+]b4_token_table_if([[#if ]b4_api_PREFIX[DEBUG]])[
   /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
   const ]b4_parser_class_name[::rhs_number_type
   ]b4_parser_class_name[::yyrhs_[] =
@@ -1021,7 +1075,7 @@ b4_error_verbose_if([, int tok])[)
 		       &]b4_rhs_value(yynrhs, yyi + 1)[,
 		       &]b4_rhs_location(yynrhs, yyi + 1)[);
   }
-#endif // YYDEBUG
+#endif // ]b4_api_PREFIX[DEBUG
 
   /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
   ]b4_parser_class_name[::token_number_type
@@ -1052,106 +1106,5 @@ b4_error_verbose_if([, int tok])[)
   const ]b4_parser_class_name[::token_number_type ]b4_parser_class_name[::yyundef_token_ = ]b4_undef_token_number[;
 
 ]b4_namespace_close[
-
 ]b4_epilogue
-dnl
-@output(b4_dir_prefix[]stack.hh@)
-b4_copyright([Stack handling for Bison parsers in C++],
-             [2002, 2003, 2004, 2005, 2006, 2007, 2008])[
-
-#ifndef BISON_STACK_HH
-# define BISON_STACK_HH
-
-#include <deque>
-
-]b4_namespace_open[
-  template <class T, class S = std::deque<T> >
-  class stack
-  {
-  public:
-
-    // Hide our reversed order.
-    typedef typename S::reverse_iterator iterator;
-    typedef typename S::const_reverse_iterator const_iterator;
-
-    stack () : seq_ ()
-    {
-    }
-
-    stack (unsigned int n) : seq_ (n)
-    {
-    }
-
-    inline
-    T&
-    operator [] (unsigned int i)
-    {
-      return seq_[i];
-    }
-
-    inline
-    const T&
-    operator [] (unsigned int i) const
-    {
-      return seq_[i];
-    }
-
-    inline
-    void
-    push (const T& t)
-    {
-      seq_.push_front (t);
-    }
-
-    inline
-    void
-    pop (unsigned int n = 1)
-    {
-      for (; n; --n)
-	seq_.pop_front ();
-    }
-
-    inline
-    unsigned int
-    height () const
-    {
-      return seq_.size ();
-    }
-
-    inline const_iterator begin () const { return seq_.rbegin (); }
-    inline const_iterator end () const { return seq_.rend (); }
-
-  private:
-
-    S seq_;
-  };
-
-  /// Present a slice of the top of a stack.
-  template <class T, class S = stack<T> >
-  class slice
-  {
-  public:
-
-    slice (const S& stack,
-	   unsigned int range) : stack_ (stack),
-				 range_ (range)
-    {
-    }
-
-    inline
-    const T&
-    operator [] (unsigned int i) const
-    {
-      return stack_[range_ - i];
-    }
-
-  private:
-
-    const S& stack_;
-    unsigned int range_;
-  };
-]b4_namespace_close[
-
-#endif // not BISON_STACK_HH[]dnl
-]
 m4_divert_pop(0)

data/lalr1.java

@@ -1,6 +1,6 @@
 # Java skeleton for Bison -*- autoconf -*-
 
-# Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,9 +23,9 @@ m4_ifval(m4_defn([b4_symbol_destructors]),
         [])
 
 m4_divert_push(0)dnl
-@output(b4_parser_file_name@)
+@output(b4_parser_file_name@)@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
-  [2007, 2008])
+             [2007-2012])
 
 b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
 ])[/* First part of user declarations.  */
@@ -102,7 +102,7 @@ b4_token_enums(b4_tokens)
   private ]b4_location_type[ yylloc (YYStack rhs, int n)
   {
     if (n > 0)
-      return new ]b4_location_type[ (rhs.locationAt (1).begin, rhs.locationAt (n).end);
+      return new ]b4_location_type[ (rhs.locationAt (n-1).begin, rhs.locationAt (0).end);
     else
       return new ]b4_location_type[ (rhs.locationAt (0).end);
   }]])[
@@ -130,7 +130,7 @@ b4_token_enums(b4_tokens)
     /**
      * Entry point for the scanner.  Returns the token identifier corresponding
      * to the next token and prepares to return the semantic value
-     * ]b4_locations_if([and beginning/ending positions ])[of the token. 
+     * ]b4_locations_if([and beginning/ending positions ])[of the token.
      * @@return the token identifier corresponding to the next token. */
     int yylex () ]b4_maybe_throws([b4_lex_throws])[;
 
@@ -228,11 +228,11 @@ b4_lexer_if([[
 
     public int size = 16;
     public int height = -1;
-    
+
     public final void push (int state, ]b4_yystype[ value]dnl
-    	   	      	    b4_locations_if([, ]b4_location_type[ loc])[) {
+			    b4_locations_if([, ]b4_location_type[ loc])[) {
       height++;
-      if (size == height) 
+      if (size == height)
         {
 	  int[] newStateStack = new int[size * 2];
 	  System.arraycopy (stateStack, 0, newStateStack, 0, height);
@@ -241,7 +241,7 @@ b4_lexer_if([[
 	  ]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
 	  System.arraycopy (locStack, 0, newLocStack, 0, height);
 	  locStack = newLocStack;]])
-	  
+
 	  b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
 	  System.arraycopy (valueStack, 0, newValueStack, 0, height);
 	  valueStack = newValueStack;
@@ -255,14 +255,14 @@ b4_lexer_if([[
     }
 
     public final void pop () {
-      height--;
+      pop (1);
     }
 
     public final void pop (int num) {
       // Avoid memory leaks... garbage collection is a white lie!
       if (num > 0) {
-	java.util.Arrays.fill (valueStack, height - num + 1, height, null);
-        ]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height, null);]])[
+	java.util.Arrays.fill (valueStack, height - num + 1, height + 1, null);
+        ]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height + 1, null);]])[
       }
       height -= num;
     }
@@ -283,8 +283,8 @@ b4_lexer_if([[
     public void print (java.io.PrintStream out)
     {
       out.print ("Stack now");
-      
-      for (int i = 0; i < height; i++)
+
+      for (int i = 0; i <= height; i++)
         {
 	  out.print (' ');
 	  out.print (stateStack[i]);
@@ -308,11 +308,9 @@ b4_lexer_if([[
    * printing an error message.  */
   public static final int YYERROR = 2;
 
-  /**
-   * Returned by a Bison action in order to print an error message and start
-   * error recovery.  */
-  public static final int YYFAIL = 3;
-
+  // Internal return codes that are not supported for user semantic
+  // actions.
+  private static final int YYERRLAB = 3;
   private static final int YYNEWSTATE = 4;
   private static final int YYDEFAULT = 5;
   private static final int YYREDUCE = 6;
@@ -337,7 +335,7 @@ b4_lexer_if([[
 
     /* If YYLEN is nonzero, implement the default value of the action:
        `$$ = $1'.  Otherwise, use the top of the stack.
-    
+
        Otherwise, the following line sets YYVAL to garbage.
        This behavior is undocumented and Bison
        users should not rely upon it.  */
@@ -345,7 +343,7 @@ b4_lexer_if([[
       yyval = yystack.valueAt (yylen - 1);
     else
       yyval = yystack.valueAt (0);
-    
+
     yy_reduce_print (yyn, yystack);
 
     switch (yyn)
@@ -456,8 +454,6 @@ b4_lexer_if([[
     /// Semantic value of the lookahead.
     b4_yystype[ yylval = null;
 
-    int yyresult;
-
     yycdebug ("Starting parse\n");
     yyerrstatus_ = 0;
 
@@ -482,19 +478,19 @@ m4_popdef([b4_at_dollar])])dnl
         yycdebug ("Entering state " + yystate + "\n");
         if (yydebug > 0)
           yystack.print (yyDebugStream);
-    
+
         /* Accept?  */
         if (yystate == yyfinal_)
           return true;
-    
+
         /* Take a decision.  First try without lookahead.  */
         yyn = yypact_[yystate];
-        if (yyn == yypact_ninf_)
+        if (yy_pact_value_is_default_ (yyn))
           {
             label = YYDEFAULT;
 	    break;
           }
-    
+
         /* Read a lookahead token.  */
         if (yychar == yyempty_)
           {
@@ -502,10 +498,10 @@ m4_popdef([b4_at_dollar])])dnl
 	    yychar = yylex ();]
             b4_locations_if([[
 	    yylloc = new ]b4_location_type[(yylexer.getStartPos (),
-	    		   	            yylexer.getEndPos ());]])
+				            yylexer.getEndPos ());]])
             yylval = yylexer.getLVal ();[
           }
-    
+
         /* Convert token to internal form.  */
         if (yychar <= EOF)
           {
@@ -516,58 +512,58 @@ m4_popdef([b4_at_dollar])])dnl
           {
 	    yytoken = yytranslate_ (yychar);
 	    yy_symbol_print ("Next token is", yytoken,
-	    		     yylval]b4_locations_if([, yylloc])[);
+			     yylval]b4_locations_if([, yylloc])[);
           }
-    
+
         /* If the proper action on seeing token YYTOKEN is to reduce or to
            detect an error, take that action.  */
         yyn += yytoken;
         if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
           label = YYDEFAULT;
-    
+
         /* <= 0 means reduce or error.  */
         else if ((yyn = yytable_[yyn]) <= 0)
           {
-	    if (yyn == 0 || yyn == yytable_ninf_)
-	      label = YYFAIL;
+	    if (yy_table_value_is_error_ (yyn))
+	      label = YYERRLAB;
 	    else
 	      {
 	        yyn = -yyn;
 	        label = YYREDUCE;
 	      }
           }
-    
+
         else
           {
             /* Shift the lookahead token.  */
 	    yy_symbol_print ("Shifting", yytoken,
-	    		     yylval]b4_locations_if([, yylloc])[);
-    
+			     yylval]b4_locations_if([, yylloc])[);
+
             /* Discard the token being shifted.  */
             yychar = yyempty_;
-    
+
             /* Count tokens shifted since error; after three, turn off error
                status.  */
             if (yyerrstatus_ > 0)
               --yyerrstatus_;
-    
+
             yystate = yyn;
             yystack.push (yystate, yylval]b4_locations_if([, yylloc])[);
             label = YYNEWSTATE;
           }
         break;
-    
+
       /*-----------------------------------------------------------.
       | yydefault -- do the default action for the current state.  |
       `-----------------------------------------------------------*/
       case YYDEFAULT:
         yyn = yydefact_[yystate];
         if (yyn == 0)
-          label = YYFAIL;
+          label = YYERRLAB;
         else
           label = YYREDUCE;
         break;
-    
+
       /*-----------------------------.
       | yyreduce -- Do a reduction.  |
       `-----------------------------*/
@@ -576,24 +572,26 @@ m4_popdef([b4_at_dollar])])dnl
         label = yyaction (yyn, yystack, yylen);
 	yystate = yystack.stateAt (0);
         break;
-    
+
       /*------------------------------------.
       | yyerrlab -- here on detecting error |
       `------------------------------------*/
-      case YYFAIL:
+      case YYERRLAB:
         /* If not already recovering from an error, report this error.  */
         if (yyerrstatus_ == 0)
           {
-	    ++yynerrs_;
-	    yyerror (]b4_locations_if([yylloc, ])[yysyntax_error (yystate, yytoken));
+            ++yynerrs_;
+            if (yychar == yyempty_)
+              yytoken = yyempty_;
+            yyerror (]b4_locations_if([yylloc, ])[yysyntax_error (yystate, yytoken));
           }
-    
+
         ]b4_locations_if([yyerrloc = yylloc;])[
         if (yyerrstatus_ == 3)
           {
 	    /* If just tried and failed to reuse lookahead token after an
 	     error, discard it.  */
-    
+
 	    if (yychar <= EOF)
 	      {
 	      /* Return failure if at end of input.  */
@@ -603,17 +601,17 @@ m4_popdef([b4_at_dollar])])dnl
 	    else
 	      yychar = yyempty_;
           }
-    
+
         /* Else will try to reuse lookahead token after shifting the error
            token.  */
         label = YYERRLAB1;
         break;
-    
+
       /*---------------------------------------------------.
       | errorlab -- error raised explicitly by YYERROR.  |
       `---------------------------------------------------*/
       case YYERROR:
-    
+
         ]b4_locations_if([yyerrloc = yystack.locationAt (yylen - 1);])[
         /* Do not reclaim the symbols of the rule which action triggered
            this YYERROR.  */
@@ -622,17 +620,17 @@ m4_popdef([b4_at_dollar])])dnl
         yystate = yystack.stateAt (0);
         label = YYERRLAB1;
         break;
-    
+
       /*-------------------------------------------------------------.
       | yyerrlab1 -- common code for both syntax error and YYERROR.  |
       `-------------------------------------------------------------*/
       case YYERRLAB1:
         yyerrstatus_ = 3;	/* Each real token shifted decrements this.  */
-    
+
         for (;;)
           {
 	    yyn = yypact_[yystate];
-	    if (yyn != yypact_ninf_)
+	    if (!yy_pact_value_is_default_ (yyn))
 	      {
 	        yyn += yyterror_;
 	        if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
@@ -642,18 +640,18 @@ m4_popdef([b4_at_dollar])])dnl
 		      break;
 	          }
 	      }
-    
+
 	    /* Pop the current state because it cannot handle the error token.  */
-	    if (yystack.height == 1)
+	    if (yystack.height == 0)
 	      return false;
-    
+
 	    ]b4_locations_if([yyerrloc = yystack.locationAt (0);])[
 	    yystack.pop ();
 	    yystate = yystack.stateAt (0);
 	    if (yydebug > 0)
 	      yystack.print (yyDebugStream);
           }
-    
+
 	]b4_locations_if([
 	/* Muck with the stack to setup for yylloc.  */
 	yystack.push (0, null, yylloc);
@@ -664,16 +662,16 @@ m4_popdef([b4_at_dollar])])dnl
         /* Shift the error token.  */
         yy_symbol_print ("Shifting", yystos_[yyn],
 			 yylval]b4_locations_if([, yyloc])[);
-    
+
         yystate = yyn;
 	yystack.push (yyn, yylval]b4_locations_if([, yyloc])[);
         label = YYNEWSTATE;
         break;
-    
+
         /* Accept.  */
       case YYACCEPT:
         return true;
-    
+
         /* Abort.  */
       case YYABORT:
         return false;
@@ -685,44 +683,96 @@ m4_popdef([b4_at_dollar])])dnl
   {
     if (errorVerbose)
       {
-        int yyn = yypact_[yystate];
-        if (yypact_ninf_ < yyn && yyn <= yylast_)
+        /* There are many possibilities here to consider:
+           - Assume YYFAIL is not used.  It's too flawed to consider.
+             See
+             <http://lists.gnu.org/archive/html/bison-patches/2009-12/msg00024.html>
+             for details.  YYERROR is fine as it does not invoke this
+             function.
+           - If this state is a consistent state with a default action,
+             then the only way this function was invoked is if the
+             default action is an error action.  In that case, don't
+             check for expected tokens because there are none.
+           - The only way there can be no lookahead present (in tok) is
+             if this state is a consistent state with a default action.
+             Thus, detecting the absence of a lookahead is sufficient to
+             determine that there is no unexpected or expected token to
+             report.  In that case, just report a simple "syntax error".
+           - Don't assume there isn't a lookahead just because this
+             state is a consistent state with a default action.  There
+             might have been a previous inconsistent state, consistent
+             state with a non-default action, or user semantic action
+             that manipulated yychar.  (However, yychar is currently out
+             of scope during semantic actions.)
+           - Of course, the expected token list depends on states to
+             have correct lookahead information, and it depends on the
+             parser not to perform extra reductions after fetching a
+             lookahead from the scanner and before detecting a syntax
+             error.  Thus, state merging (from LALR or IELR) and default
+             reductions corrupt the expected token list.  However, the
+             list is correct for canonical LR with one exception: it
+             will still contain any token that will not be accepted due
+             to an error action in a later state.
+        */
+        if (tok != yyempty_)
           {
-	    StringBuffer res;
-
-	    /* Start YYX at -YYN if negative to avoid negative indexes in
-	       YYCHECK.  */
-	    int yyxbegin = yyn < 0 ? -yyn : 0;
-
-	    /* Stay within bounds of both yycheck and yytname.  */
-	    int yychecklim = yylast_ - yyn + 1;
-	    int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
-	    int count = 0;
-	    for (int x = yyxbegin; x < yyxend; ++x)
-	      if (yycheck_[x + yyn] == x && x != yyterror_)
-	        ++count;
-
-	    // FIXME: This method of building the message is not compatible
-	    // with internationalization.
-	    res = new StringBuffer ("syntax error, unexpected ");
-	    res.append (yytnamerr_ (yytname_[tok]));
-	    if (count < 5)
-	      {
-	        count = 0;
-	        for (int x = yyxbegin; x < yyxend; ++x)
-	          if (yycheck_[x + yyn] == x && x != yyterror_)
-		    {
-		      res.append (count++ == 0 ? ", expecting " : " or ");
-		      res.append (yytnamerr_ (yytname_[x]));
-		    }
-	      }
-	    return res.toString ();
+            // FIXME: This method of building the message is not compatible
+            // with internationalization.
+            StringBuffer res =
+              new StringBuffer ("syntax error, unexpected ");
+            res.append (yytnamerr_ (yytname_[tok]));
+            int yyn = yypact_[yystate];
+            if (!yy_pact_value_is_default_ (yyn))
+              {
+                /* Start YYX at -YYN if negative to avoid negative
+                   indexes in YYCHECK.  In other words, skip the first
+                   -YYN actions for this state because they are default
+                   actions.  */
+                int yyxbegin = yyn < 0 ? -yyn : 0;
+                /* Stay within bounds of both yycheck and yytname.  */
+                int yychecklim = yylast_ - yyn + 1;
+                int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+                int count = 0;
+                for (int x = yyxbegin; x < yyxend; ++x)
+                  if (yycheck_[x + yyn] == x && x != yyterror_
+                      && !yy_table_value_is_error_ (yytable_[x + yyn]))
+                    ++count;
+                if (count < 5)
+                  {
+                    count = 0;
+                    for (int x = yyxbegin; x < yyxend; ++x)
+                      if (yycheck_[x + yyn] == x && x != yyterror_
+                          && !yy_table_value_is_error_ (yytable_[x + yyn]))
+                        {
+                          res.append (count++ == 0 ? ", expecting " : " or ");
+                          res.append (yytnamerr_ (yytname_[x]));
+                        }
+                  }
+              }
+            return res.toString ();
           }
       }
 
     return "syntax error";
   }
 
+  /**
+   * Whether the given <code>yypact_</code> value indicates a defaulted state.
+   * @@param yyvalue   the value to check
+   */
+  private static boolean yy_pact_value_is_default_ (int yyvalue)
+  {
+    return yyvalue == yypact_ninf_;
+  }
+
+  /**
+   * Whether the given <code>yytable_</code> value indicates a syntax error.
+   * @@param yyvalue   the value to check
+   */
+  private static boolean yy_table_value_is_error_ (int yyvalue)
+  {
+    return yyvalue == yytable_ninf_;
+  }
 
   /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
      STATE-NUM.  */
@@ -732,9 +782,9 @@ m4_popdef([b4_at_dollar])])dnl
     ]b4_pact[
   };
 
-  /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
-     doesn't specify something else to do.  Zero means the default is an
-     error.  */
+  /* YYDEFACT[S] -- default reduction number in state S.  Performed when
+     YYTABLE doesn't specify something else to do.  Zero means the
+     default is an error.  */
   private static final ]b4_int_type_for([b4_defact])[ yydefact_[] =
   {
     ]b4_defact[
@@ -755,7 +805,7 @@ m4_popdef([b4_at_dollar])])dnl
 
   /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
      positive, shift that token.  If negative, reduce the rule which
-     number is the opposite.  If zero, do what YYDEFACT says.  */
+     number is the opposite.  If YYTABLE_NINF_, syntax error.  */
   private static final ]b4_int_type_for([b4_table])[ yytable_ninf_ = ]b4_table_ninf[;
   private static final ]b4_int_type_for([b4_table])[
   yytable_[] =
@@ -842,7 +892,7 @@ m4_popdef([b4_at_dollar])])dnl
     for (int yyi = 0; yyi < yynrhs; yyi++)
       yy_symbol_print ("   $" + (yyi + 1) + " =",
 		       yyrhs_[yyprhs_[yyrule] + yyi],
-		       ]b4_rhs_value(yynrhs, yyi + 1)b4_locations_if([, 
+		       ]b4_rhs_value(yynrhs, yyi + 1)b4_locations_if([,
 		       b4_rhs_location(yynrhs, yyi + 1)])[);
   }
 

data/location.cc

@@ -1,7 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002-2007, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -19,61 +18,66 @@
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert_push(0)dnl
-@output(b4_dir_prefix[]position.hh@)
+@output(b4_dir_prefix[]position.hh@)@
 b4_copyright([Positions for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
+             [2002-2007, 2009-2012])[
 
 /**
- ** \file position.hh
+ ** \file ]b4_dir_prefix[position.hh
  ** Define the ]b4_namespace_ref[::position class.
  */
 
-#ifndef BISON_POSITION_HH
-# define BISON_POSITION_HH
+]b4_cpp_guard_open([b4_dir_prefix[]position.hh])[
 
-# include <iostream>
+# include <algorithm> // std::max
+# include <iosfwd>
 # include <string>
-# include <algorithm>
+
+]b4_null_define[
 
 ]b4_namespace_open[
   /// Abstract a position.
   class position
   {
   public:
-]m4_ifdef([b4_location_constructors], [
+]m4_ifdef([b4_location_constructors], [[
     /// Construct a position.
-    position ()
-      : filename (0), line (]b4_location_initial_line[), column (]b4_location_initial_column[)
+    explicit position (]b4_percent_define_get([[filename_type]])[* f = YY_NULL,
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
+      : filename (f)
+      , line (l)
+      , column (c)
     {
     }
 
-])[
+]])[
     /// Initialization.
-    inline void initialize (]b4_percent_define_get([[filename_type]])[* fn)
+    void initialize (]b4_percent_define_get([[filename_type]])[* fn = YY_NULL,
+                     unsigned int l = ]b4_location_initial_line[u,
+                     unsigned int c = ]b4_location_initial_column[u)
     {
       filename = fn;
-      line = ]b4_location_initial_line[;
-      column = ]b4_location_initial_column[;
+      line = l;
+      column = c;
     }
 
     /** \name Line and Column related manipulators
      ** \{ */
-  public:
     /// (line related) Advance to the COUNT next lines.
-    inline void lines (int count = 1)
+    void lines (int count = 1)
     {
-      column = ]b4_location_initial_column[;
+      column = ]b4_location_initial_column[u;
       line += count;
     }
 
     /// (column related) Advance to the COUNT next columns.
-    inline void columns (int count = 1)
+    void columns (int count = 1)
     {
       column = std::max (]b4_location_initial_column[u, column + count);
     }
     /** \} */
 
-  public:
     /// File name to which this position refers.
     ]b4_percent_define_get([[filename_type]])[* filename;
     /// Current line number.
@@ -116,10 +120,11 @@ b4_copyright([Positions for Bison parsers in C++],
   inline bool
   operator== (const position& pos1, const position& pos2)
   {
-    return
-      (pos1.filename == pos2.filename
-       || pos1.filename && pos2.filename && *pos1.filename == *pos2.filename)
-      && pos1.line == pos2.line && pos1.column == pos2.column;
+    return (pos1.line == pos2.line
+            && pos1.column == pos2.column
+            && (pos1.filename == pos2.filename
+                || (pos1.filename && pos2.filename
+                    && *pos1.filename == *pos2.filename)));
   }
 
   /// Compare two position objects.
@@ -142,18 +147,17 @@ b4_copyright([Positions for Bison parsers in C++],
   }
 
 ]b4_namespace_close[
-#endif // not BISON_POSITION_HH]
-@output(b4_dir_prefix[]location.hh@)
+]b4_cpp_guard_close([b4_dir_prefix[]position.hh])
+@output(b4_dir_prefix[]location.hh@)@
 b4_copyright([Locations for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
+             [2002-2007, 2009-2012])[
 
 /**
- ** \file location.hh
+ ** \file ]b4_dir_prefix[location.hh
  ** Define the ]b4_namespace_ref[::location class.
  */
 
-#ifndef BISON_LOCATION_HH
-# define BISON_LOCATION_HH
+]b4_cpp_guard_open([b4_dir_prefix[]location.hh])[
 
 # include <iostream>
 # include <string>
@@ -166,17 +170,36 @@ b4_copyright([Locations for Bison parsers in C++],
   {
   public:
 ]m4_ifdef([b4_location_constructors], [
-    /// Construct a location.
-    location ()
-      : begin (), end ()
+    /// Construct a location from \a b to \a e.
+    location (const position& b, const position& e)
+      : begin (b)
+      , end (e)
+    {
+    }
+
+    /// Construct a 0-width location in \a p.
+    explicit location (const position& p = position ())
+      : begin (p)
+      , end (p)
+    {
+    }
+
+    /// Construct a 0-width location in \a f, \a l, \a c.
+    explicit location (]b4_percent_define_get([[filename_type]])[* f,
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
+      : begin (f, l, c)
+      , end (f, l, c)
     {
     }
 
 ])[
     /// Initialization.
-    inline void initialize (]b4_percent_define_get([[filename_type]])[* fn)
+    void initialize (]b4_percent_define_get([[filename_type]])[* f = YY_NULL,
+                     unsigned int l = ]b4_location_initial_line[u,
+                     unsigned int c = ]b4_location_initial_column[u)
     {
-      begin.initialize (fn);
+      begin.initialize (f, l, c);
       end = begin;
     }
 
@@ -184,19 +207,19 @@ b4_copyright([Locations for Bison parsers in C++],
      ** \{ */
   public:
     /// Reset initial location to final location.
-    inline void step ()
+    void step ()
     {
       begin = end;
     }
 
     /// Extend the current location to the COUNT next columns.
-    inline void columns (unsigned int count = 1)
+    void columns (unsigned int count = 1)
     {
       end += count;
     }
 
     /// Extend the current location to the COUNT next lines.
-    inline void lines (unsigned int count = 1)
+    void lines (unsigned int count = 1)
     {
       end.lines (count);
     }
@@ -270,6 +293,6 @@ b4_copyright([Locations for Bison parsers in C++],
 
 ]b4_namespace_close[
 
-#endif // not BISON_LOCATION_HH]
+]b4_cpp_guard_close([b4_dir_prefix[]location.hh])
 m4_divert_pop(0)
 m4_changecom([#])

data/m4sugar/foreach.m4

@@ -1,400 +0,0 @@
-#                                                  -*- Autoconf -*-
-# This file is part of Autoconf.
-# foreach-based replacements for recursive functions.
-# Speeds up GNU M4 1.4.x by avoiding quadratic $@ recursion, but penalizes
-# GNU M4 1.6 by requiring more memory and macro expansions.
-#
-# Copyright (C) 2008 Free Software Foundation, Inc.
-#
-# This program 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 3 of the License, or
-# (at your option) any later version.
-#
-# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception, the Free Software Foundation gives unlimited
-# permission to copy, distribute and modify the configure scripts that
-# are the output of Autoconf.  You need not follow the terms of the GNU
-# General Public License when using or distributing such scripts, even
-# though portions of the text of Autoconf appear in them.  The GNU
-# General Public License (GPL) does govern all other use of the material
-# that constitutes the Autoconf program.
-#
-# Certain portions of the Autoconf source text are designed to be copied
-# (in certain cases, depending on the input) into the output of
-# Autoconf.  We call these the "data" portions.  The rest of the Autoconf
-# source text consists of comments plus executable code that decides which
-# of the data portions to output in any given case.  We call these
-# comments and executable code the "non-data" portions.  Autoconf never
-# copies any of the non-data portions into its output.
-#
-# This special exception to the GPL applies to versions of Autoconf
-# released by the Free Software Foundation.  When you make and
-# distribute a modified version of Autoconf, you may extend this special
-# exception to the GPL to apply to your modified version as well, *unless*
-# your modified version has the potential to copy into its output some
-# of the text that was the non-data portion of the version that you started
-# with.  (In other words, unless your change moves or copies text from
-# the non-data portions to the data portions.)  If your modification has
-# such potential, you must delete any notice of this special exception
-# to the GPL from your modified version.
-#
-# Written by Eric Blake.
-#
-
-# In M4 1.4.x, every byte of $@ is rescanned.  This means that an
-# algorithm on n arguments that recurses with one less argument each
-# iteration will scan n * (n + 1) / 2 arguments, for O(n^2) time.  In
-# M4 1.6, this was fixed so that $@ is only scanned once, then
-# back-references are made to information stored about the scan.
-# Thus, n iterations need only scan n arguments, for O(n) time.
-# Additionally, in M4 1.4.x, recursive algorithms did not clean up
-# memory very well, requiring O(n^2) memory rather than O(n) for n
-# iterations.
-#
-# This file is designed to overcome the quadratic nature of $@
-# recursion by writing a variant of m4_foreach that uses m4_for rather
-# than $@ recursion to operate on the list.  This involves more macro
-# expansions, but avoids the need to rescan a quadratic number of
-# arguments, making these replacements very attractive for M4 1.4.x.
-# On the other hand, in any version of M4, expanding additional macros
-# costs additional time; therefore, in M4 1.6, where $@ recursion uses
-# fewer macros, these replacements actually pessimize performance.
-# Additionally, the use of $10 to mean the tenth argument violates
-# POSIX; although all versions of m4 1.4.x support this meaning, a
-# future m4 version may switch to take it as the first argument
-# concatenated with a literal 0, so the implementations in this file
-# are not future-proof.  Thus, this file is conditionally included as
-# part of m4_init(), only when it is detected that M4 probably has
-# quadratic behavior (ie. it lacks the macro __m4_version__).
-#
-# Please keep this file in sync with m4sugar.m4.
-
-# m4_foreach(VARIABLE, LIST, EXPRESSION)
-# --------------------------------------
-# Expand EXPRESSION assigning each value of the LIST to VARIABLE.
-# LIST should have the form `item_1, item_2, ..., item_n', i.e. the
-# whole list must *quoted*.  Quote members too if you don't want them
-# to be expanded.
-#
-# This version minimizes the number of times that $@ is evaluated by
-# using m4_for to generate a boilerplate into VARIABLE then passing $@
-# to that temporary macro.  Thus, the recursion is done in m4_for
-# without reparsing any user input, and is not quadratic.  For an idea
-# of how this works, note that m4_foreach(i,[1,2],[i]) defines i to be
-#   m4_define([$1],[$3])$2[]m4_define([$1],[$4])$2[]m4_popdef([i])
-# then calls i([i],[i],[1],[2]).
-m4_define([m4_foreach],
-[m4_if([$2], [], [], [_$0([$1], [$3], $2)])])
-
-m4_define([_m4_foreach],
-[m4_define([$1], m4_pushdef([$1])_m4_for([$1], [3], [$#], [1],
-    [$0_([1], [2], _m4_defn([$1]))])[m4_popdef([$1])])m4_indir([$1], $@)])
-
-m4_define([_m4_foreach_],
-[[m4_define([$$1], [$$3])$$2[]]])
-
-# m4_case(SWITCH, VAL1, IF-VAL1, VAL2, IF-VAL2, ..., DEFAULT)
-# -----------------------------------------------------------
-# Find the first VAL that SWITCH matches, and expand the corresponding
-# IF-VAL.  If there are no matches, expand DEFAULT.
-#
-# Use m4_for to create a temporary macro in terms of a boilerplate
-# m4_if with final cleanup.  If $# is even, we have DEFAULT; if it is
-# odd, then rounding the last $# up in the temporary macro is
-# harmless.  For example, both m4_case(1,2,3,4,5) and
-# m4_case(1,2,3,4,5,6) result in the intermediate _m4_case being
-#   m4_if([$1],[$2],[$3],[$1],[$4],[$5],_m4_popdef([_m4_case])[$6])
-m4_define([m4_case],
-[m4_if(m4_eval([$# <= 2]), [1], [$2],
-[m4_pushdef([_$0], [m4_if(]m4_for([_m4_count], [2], m4_decr([$#]), [2],
-     [_$0_([1], _m4_count, m4_incr(_m4_count))])[_m4_popdef(
-	 [_$0])]m4_dquote($m4_eval([($# + 1) & ~1]))[)])_$0($@)])])
-
-m4_define([_m4_case_],
-[[[$$1],[$$2],[$$3],]])
-
-# m4_bmatch(SWITCH, RE1, VAL1, RE2, VAL2, ..., DEFAULT)
-# -----------------------------------------------------
-# m4 equivalent of
-#
-# if (SWITCH =~ RE1)
-#   VAL1;
-# elif (SWITCH =~ RE2)
-#   VAL2;
-# elif ...
-#   ...
-# else
-#   DEFAULT
-#
-# We build the temporary macro _m4_b:
-#   m4_define([_m4_b], _m4_defn([_m4_bmatch]))_m4_b([$1], [$2], [$3])...
-#   _m4_b([$1], [$m-1], [$m])_m4_b([], [], [$m+1]_m4_popdef([_m4_b]))
-# then invoke m4_unquote(_m4_b($@)), for concatenation with later text.
-m4_define([m4_bmatch],
-[m4_if([$#], 0, [m4_fatal([$0: too few arguments: $#])],
-       [$#], 1, [m4_fatal([$0: too few arguments: $#: $1])],
-       [$#], 2, [$2],
-       [m4_define([_m4_b], m4_pushdef([_m4_b])[m4_define([_m4_b],
-  _m4_defn([_$0]))]_m4_for([_m4_b], [3], m4_eval([($# + 1) / 2 * 2 - 1]),
-  [2], [_$0_([1], m4_decr(_m4_b), _m4_b)])[_m4_b([], [],]m4_dquote(
-  [$]m4_incr(_m4_b))[_m4_popdef([_m4_b]))])m4_unquote(_m4_b($@))])])
-
-m4_define([_m4_bmatch],
-[m4_if(m4_bregexp([$1], [$2]), [-1], [], [[$3]m4_define([$0])])])
-
-m4_define([_m4_bmatch_],
-[[_m4_b([$$1], [$$2], [$$3])]])
-
-
-# m4_cond(TEST1, VAL1, IF-VAL1, TEST2, VAL2, IF-VAL2, ..., [DEFAULT])
-# -------------------------------------------------------------------
-# Similar to m4_if, except that each TEST is expanded when encountered.
-# If the expansion of TESTn matches the string VALn, the result is IF-VALn.
-# The result is DEFAULT if no tests passed.  This macro allows
-# short-circuiting of expensive tests, where it pays to arrange quick
-# filter tests to run first.
-#
-# m4_cond already guarantees either 3*n or 3*n + 1 arguments, 1 <= n.
-# We only have to speed up _m4_cond, by building the temporary _m4_c:
-#   m4_define([_m4_c], _m4_defn([m4_unquote]))_m4_c([m4_if(($1), [($2)],
-#   [[$3]m4_define([_m4_c])])])_m4_c([m4_if(($4), [($5)],
-#   [[$6]m4_define([_m4_c])])])..._m4_c([m4_if(($m-2), [($m-1)],
-#   [[$m]m4_define([_m4_c])])])_m4_c([[$m+1]]_m4_popdef([_m4_c]))
-# We invoke m4_unquote(_m4_c($@)), for concatenation with later text.
-m4_define([_m4_cond],
-[m4_define([_m4_c], m4_pushdef([_m4_c])[m4_define([_m4_c],
-  _m4_defn([m4_unquote]))]_m4_for([_m4_c], [2], m4_eval([$# / 3 * 3 - 1]), [3],
-  [$0_(m4_decr(_m4_c), _m4_c, m4_incr(_m4_c))])[_m4_c(]m4_dquote(m4_dquote(
-  [$]m4_eval([$# / 3 * 3 + 1])))[_m4_popdef([_m4_c]))])m4_unquote(_m4_c($@))])
-
-m4_define([_m4_cond_],
-[[_m4_c([m4_if(($$1), [($$2)], [[$$3]m4_define([_m4_c])])])]])
-
-# m4_bpatsubsts(STRING, RE1, SUBST1, RE2, SUBST2, ...)
-# ----------------------------------------------------
-# m4 equivalent of
-#
-#   $_ = STRING;
-#   s/RE1/SUBST1/g;
-#   s/RE2/SUBST2/g;
-#   ...
-#
-# m4_bpatsubsts already validated an odd number of arguments; we only
-# need to speed up _m4_bpatsubsts.  To avoid nesting, we build the
-# temporary _m4_p:
-#   m4_define([_m4_p], [$1])m4_define([_m4_p],
-#   m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$2], [$3]))m4_define([_m4_p],
-#   m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$4], [$5]))m4_define([_m4_p],...
-#   m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$m-1], [$m]))m4_unquote(
-#   _m4_defn([_m4_p])_m4_popdef([_m4_p]))
-m4_define([_m4_bpatsubsts],
-[m4_define([_m4_p], m4_pushdef([_m4_p])[m4_define([_m4_p],
-  ]m4_dquote([$]1)[)]_m4_for([_m4_p], [3], [$#], [2], [$0_(m4_decr(_m4_p),
-  _m4_p)])[m4_unquote(_m4_defn([_m4_p])_m4_popdef([_m4_p]))])_m4_p($@)])
-
-m4_define([_m4_bpatsubsts_],
-[[m4_define([_m4_p],
-m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$$1], [$$2]))]])
-
-# m4_shiftn(N, ...)
-# -----------------
-# Returns ... shifted N times.  Useful for recursive "varargs" constructs.
-#
-# m4_shiftn already validated arguments; we only need to speed up
-# _m4_shiftn.  If N is 3, then we build the temporary _m4_s, defined as
-#   ,[$5],[$6],...,[$m]_m4_popdef([_m4_s])
-# before calling m4_shift(_m4_s($@)).
-m4_define([_m4_shiftn],
-[m4_if(m4_incr([$1]), [$#], [], [m4_define([_m4_s],
-	   m4_pushdef([_m4_s])_m4_for([_m4_s], m4_eval([$1 + 2]), [$#], [1],
-  [[,]m4_dquote([$]_m4_s)])[_m4_popdef([_m4_s])])m4_shift(_m4_s($@))])])
-
-# m4_do(STRING, ...)
-# ------------------
-# This macro invokes all its arguments (in sequence, of course).  It is
-# useful for making your macros more structured and readable by dropping
-# unnecessary dnl's and have the macros indented properly.
-#
-# Here, we use the temporary macro _m4_do, defined as
-#   $1[]$2[]...[]$n[]_m4_popdef([_m4_do])
-m4_define([m4_do],
-[m4_if([$#], [0], [],
-       [m4_define([_$0], m4_pushdef([_$0])_m4_for([_$0], [1], [$#], [1],
-		  [$_$0[[]]])[_m4_popdef([_$0])])_$0($@)])])
-
-# m4_dquote_elt(ARGS)
-# -------------------
-# Return ARGS as an unquoted list of double-quoted arguments.
-#
-# m4_foreach to the rescue.  It's easier to shift off the leading comma.
-m4_define([m4_dquote_elt],
-[m4_shift(m4_foreach([_m4_elt], [$@], [,m4_dquote(_m4_defn([_m4_elt]))]))])
-
-# m4_reverse(ARGS)
-# ----------------
-# Output ARGS in reverse order.
-#
-# Invoke _m4_r($@) with the temporary _m4_r built as
-#   [$m], [$m-1], ..., [$2], [$1]_m4_popdef([_m4_r])
-m4_define([m4_reverse],
-[m4_if([$#], [0], [], [$#], [1], [[$1]],
-[m4_define([_m4_r], m4_dquote([$$#])m4_pushdef([_m4_r])_m4_for([_m4_r],
-      m4_decr([$#]), [1], [-1],
-    [[, ]m4_dquote([$]_m4_r)])[_m4_popdef([_m4_r])])_m4_r($@)])])
-
-
-# m4_map(MACRO, LIST)
-# -------------------
-# Invoke MACRO($1), MACRO($2) etc. where $1, $2... are the elements
-# of LIST.  $1, $2... must in turn be lists, appropriate for m4_apply.
-#
-# m4_map/m4_map_sep only execute once; the speedup comes in fixing
-# _m4_map.  The mismatch in () is intentional, since $1 supplies the
-# opening `(' (but it sure looks odd!).  Build the temporary _m4_m:
-#   $1, [$3])$1, [$4])...$1, [$m])_m4_popdef([_m4_m])
-m4_define([_m4_map],
-[m4_if([$#], [2], [],
-       [m4_define([_m4_m], m4_pushdef([_m4_m])_m4_for([_m4_m], [3], [$#], [1],
-   [$0_([1], _m4_m)])[_m4_popdef([_m4_m])])_m4_m($@)])])
-
-m4_define([_m4_map_],
-[[$$1, [$$2])]])
-
-# m4_transform(EXPRESSION, ARG...)
-# --------------------------------
-# Expand EXPRESSION([ARG]) for each argument.  More efficient than
-# m4_foreach([var], [ARG...], [EXPRESSION(m4_defn([var]))])
-#
-# Invoke the temporary macro _m4_transform, defined as:
-#   $1([$2])[]$1([$3])[]...$1([$m])[]_m4_popdef([_m4_transform])
-m4_define([m4_transform],
-[m4_if([$#], [0], [m4_fatal([$0: too few arguments: $#])],
-       [$#], [1], [],
-       [m4_define([_$0], m4_pushdef([_$0])_m4_for([_$0], [2], [$#], [1],
-   [_$0_([1], _$0)])[_m4_popdef([_$0])])_$0($@)])])
-
-m4_define([_m4_transform_],
-[[$$1([$$2])[]]])
-
-# m4_transform_pair(EXPRESSION, [END-EXPR = EXPRESSION], ARG...)
-# --------------------------------------------------------------
-# Perform a pairwise grouping of consecutive ARGs, by expanding
-# EXPRESSION([ARG1], [ARG2]).  If there are an odd number of ARGs, the
-# final argument is expanded with END-EXPR([ARGn]).
-#
-# Build the temporary macro _m4_transform_pair, with the $2([$m+1])
-# only output if $# is odd:
-#   $1([$3], [$4])[]$1([$5], [$6])[]...$1([$m-1],
-#   [$m])[]m4_default([$2], [$1])([$m+1])[]_m4_popdef([_m4_transform_pair])
-m4_define([m4_transform_pair],
-[m4_if([$#], [0], [m4_fatal([$0: too few arguments: $#])],
-       [$#], [1], [m4_fatal([$0: too few arguments: $#: $1])],
-       [$#], [2], [],
-       [$#], [3], [m4_default([$2], [$1])([$3])[]],
-       [m4_define([_$0], m4_pushdef([_$0])_m4_for([_$0], [3],
-   m4_eval([$# / 2 * 2 - 1]), [2], [_$0_([1], _$0, m4_incr(_$0))])_$0_end(
-   [1], [2], [$#])[_m4_popdef([_$0])])_$0($@)])])
-
-m4_define([_m4_transform_pair_],
-[[$$1([$$2], [$$3])[]]])
-
-m4_define([_m4_transform_pair_end],
-[m4_if(m4_eval([$3 & 1]), [1], [[m4_default([$$2], [$$1])([$$3])[]]])])
-
-# m4_join(SEP, ARG1, ARG2...)
-# ---------------------------
-# Produce ARG1SEPARG2...SEPARGn.  Avoid back-to-back SEP when a given ARG
-# is the empty string.  No expansion is performed on SEP or ARGs.
-#
-# Use a self-modifying separator, since we don't know how many
-# arguments might be skipped before a separator is first printed, but
-# be careful if the separator contains $.  m4_foreach to the rescue.
-m4_define([m4_join],
-[m4_pushdef([_m4_sep], [m4_define([_m4_sep], _m4_defn([m4_echo]))])]dnl
-[m4_foreach([_m4_arg], [m4_shift($@)],
-	    [m4_ifset([_m4_arg], [_m4_sep([$1])_m4_defn([_m4_arg])])])]dnl
-[_m4_popdef([_m4_sep])])
-
-# m4_joinall(SEP, ARG1, ARG2...)
-# ------------------------------
-# Produce ARG1SEPARG2...SEPARGn.  An empty ARG results in back-to-back SEP.
-# No expansion is performed on SEP or ARGs.
-#
-# A bit easier than m4_join.  m4_foreach to the rescue.
-m4_define([m4_joinall],
-[[$2]m4_if(m4_eval([$# <= 2]), [1], [],
-	   [m4_foreach([_m4_arg], [m4_shift2($@)],
-		       [[$1]_m4_defn([_m4_arg])])])])
-
-# m4_list_cmp(A, B)
-# -----------------
-# Compare the two lists of integer expressions A and B.
-#
-# m4_list_cmp takes care of any side effects; we only override
-# _m4_list_cmp_raw, where we can safely expand lists multiple times.
-# First, insert padding so that both lists are the same length; the
-# trailing +0 is necessary to handle a missing list.  Next, create a
-# temporary macro to perform pairwise comparisons until an inequality
-# is found.  For example, m4_list_cmp([1], [1,2]) creates _m4_cmp as
-#   m4_if(m4_eval([($1) != ($3)]), [1], [m4_cmp([$1], [$3])],
-#         m4_eval([($2) != ($4)]), [1], [m4_cmp([$2], [$4])],
-#         [0]_m4_popdef([_m4_cmp], [_m4_size]))
-# then calls _m4_cmp([1+0], [0], [1], [2+0])
-m4_define([_m4_list_cmp_raw],
-[m4_if([$1], [$2], 0, [m4_pushdef(
-     [_m4_size])_m4_list_cmp($1+0_m4_list_pad(m4_count($1), m4_count($2)),
-			     $2+0_m4_list_pad(m4_count($2), m4_count($1)))])])
-
-m4_define([_m4_list_pad],
-[m4_if(m4_eval($1 < $2), [1],
-       [_m4_for([_m4_size], m4_incr([$1]), [$2], [1], [,0])])])
-
-m4_define([_m4_list_cmp],
-[m4_define([_m4_size], m4_eval([$# >> 1]))]dnl
-[m4_define([_m4_cmp], m4_pushdef([_m4_cmp])[m4_if(]_m4_for([_m4_cmp],
-   [1], _m4_size, [1], [$0_(_m4_cmp, m4_eval(_m4_cmp + _m4_size))])[
-      [0]_m4_popdef([_m4_cmp], [_m4_size]))])_m4_cmp($@)])
-
-m4_define([_m4_list_cmp_],
-[[m4_eval([($$1) != ($$2)]), [1], [m4_cmp([$$1], [$$2])],
-]])
-
-# m4_max(EXPR, ...)
-# m4_min(EXPR, ...)
-# -----------------
-# Return the decimal value of the maximum (or minimum) in a series of
-# integer expressions.
-#
-# m4_foreach to the rescue; we only need to replace _m4_minmax.  Here,
-# we need a temporary macro to track the best answer so far, so that
-# the foreach expression is tractable.
-m4_define([_m4_minmax],
-[m4_pushdef([_m4_best], m4_eval([$2]))m4_foreach([_m4_arg], [m4_shift2($@)],
-    [m4_define([_m4_best], $1(_m4_best, _m4_defn([_m4_arg])))])]dnl
-[_m4_best[]_m4_popdef([_m4_best])])
-
-# m4_set_add_all(SET, VALUE...)
-# -----------------------------
-# Add each VALUE into SET.  This is O(n) in the number of VALUEs, and
-# can be faster than calling m4_set_add for each VALUE.
-#
-# m4_foreach to the rescue.  If no deletions have occurred, then avoid
-# the speed penalty of m4_set_add.
-m4_define([m4_set_add_all],
-[m4_if([$#], [0], [], [$#], [1], [],
-       [m4_define([_m4_set_size($1)], m4_eval(m4_set_size([$1])
-	  + m4_len(m4_foreach([_m4_arg], [m4_shift($@)],
-    m4_ifdef([_m4_set_cleanup($1)],
-	     [[m4_set_add([$1], _m4_defn([_m4_arg]))]],
-	     [[m4_ifdef([_m4_set([$1],]_m4_defn([_m4_arg])[)], [],
-			[m4_define([_m4_set([$1],]_m4_defn([_m4_arg])[)],
-				   [1])m4_pushdef([_m4_set([$1])],
-	_m4_defn([_m4_arg]))-])]])))))])])

data/m4sugar/foreach.m4

@@ -0,0 +1 @@
+../../submodules/autoconf/lib/m4sugar/foreach.m4

data/m4sugar/m4sugar.m4

@@ -0,0 +1 @@
+../../submodules/autoconf/lib/m4sugar/m4sugar.m4

data/stack.hh

@@ -0,0 +1,124 @@
+# C++ skeleton for Bison
+
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+m4_pushdef([b4_copyright_years],
+           [2002-2012])
+
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert_push(0)dnl
+@output(b4_dir_prefix[]stack.hh@)@
+b4_copyright([Stack handling for Bison parsers in C++],
+             [2002-2012])[
+
+/**
+ ** \file ]b4_dir_prefix[stack.hh
+ ** Define the ]b4_namespace_ref[::stack class.
+ */
+
+]b4_cpp_guard_open([b4_dir_prefix[]stack.hh])[
+
+# include <deque>
+
+]b4_namespace_open[
+  template <class T, class S = std::deque<T> >
+  class stack
+  {
+  public:
+    // Hide our reversed order.
+    typedef typename S::reverse_iterator iterator;
+    typedef typename S::const_reverse_iterator const_iterator;
+
+    stack () : seq_ ()
+    {
+    }
+
+    stack (unsigned int n) : seq_ (n)
+    {
+    }
+
+    inline
+    T&
+    operator [] (unsigned int i)
+    {
+      return seq_[i];
+    }
+
+    inline
+    const T&
+    operator [] (unsigned int i) const
+    {
+      return seq_[i];
+    }
+
+    inline
+    void
+    push (const T& t)
+    {
+      seq_.push_front (t);
+    }
+
+    inline
+    void
+    pop (unsigned int n = 1)
+    {
+      for (; n; --n)
+        seq_.pop_front ();
+    }
+
+    inline
+    unsigned int
+    height () const
+    {
+      return seq_.size ();
+    }
+
+    inline const_iterator begin () const { return seq_.rbegin (); }
+    inline const_iterator end () const { return seq_.rend (); }
+
+  private:
+    S seq_;
+  };
+
+  /// Present a slice of the top of a stack.
+  template <class T, class S = stack<T> >
+  class slice
+  {
+  public:
+    slice (const S& stack, unsigned int range)
+      : stack_ (stack)
+      , range_ (range)
+    {
+    }
+
+    inline
+    const T&
+    operator [] (unsigned int i) const
+    {
+      return stack_[range_ - i];
+    }
+
+  private:
+    const S& stack_;
+    unsigned int range_;
+  };
+]b4_namespace_close[
+
+]b4_cpp_guard_close([b4_dir_prefix[]stack.hh])
+m4_divert_pop(0)
+m4_popdef([b4_copyright_years])dnl
+m4_changecom([#])

data/xslt/bison.xsl

@@ -3,7 +3,7 @@
 <!--
     bison.xsl - common templates for Bison XSLT.
 
-    Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+    Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

data/xslt/xml2dot.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2dot.xsl - transform Bison XML Report into DOT.
 
-    Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+    Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
@@ -35,11 +35,27 @@
 </xsl:template>
 
 <xsl:template match="bison-xml-report">
-  <xsl:apply-templates select="automaton"/>
+  <xsl:text>// Generated by GNU Bison </xsl:text>
+  <xsl:value-of select="@version"/>
+  <xsl:text>.&#10;</xsl:text>
+  <xsl:text>// Report bugs to &lt;</xsl:text>
+  <xsl:value-of select="@bug-report"/>
+  <xsl:text>&gt;.&#10;</xsl:text>
+  <xsl:text>// Home page: &lt;</xsl:text>
+  <xsl:value-of select="@url"/>
+  <xsl:text>&gt;.&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="automaton">
+    <xsl:with-param name="filename" select="filename"/>
+  </xsl:apply-templates>
 </xsl:template>
 
 <xsl:template match="automaton">
-  <xsl:text>digraph Automaton {&#10;</xsl:text>
+  <xsl:param name="filename"/>
+  <xsl:text>digraph "</xsl:text>
+  <xsl:call-template name="escape">
+    <xsl:with-param name="subject" select="$filename"/>
+  </xsl:call-template>
+  <xsl:text>"&#10;{&#10;</xsl:text>
   <xsl:apply-templates select="state"/>
   <xsl:text>}&#10;</xsl:text>
 </xsl:template>
@@ -196,11 +212,11 @@
         <xsl:with-param name="search" select="$search"/>
         <xsl:with-param name="replace" select="$replace"/>
       </xsl:call-template>
-    </xsl:when> 
+    </xsl:when>
     <xsl:otherwise>
-      <xsl:value-of select="$subject"/>  
+      <xsl:value-of select="$subject"/>
     </xsl:otherwise>
-  </xsl:choose>            
+  </xsl:choose>
 </xsl:template>
 
 </xsl:stylesheet>

data/xslt/xml2text.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2text.xsl - transform Bison XML Report into plain text.
 
-    Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+    Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 

data/xslt/xml2xhtml.xsl

@@ -3,7 +3,7 @@
 <!--
     xml2html.xsl - transform Bison XML Report into XHTML.
 
-    Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+    Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
     This file is part of Bison, the GNU Compiler Compiler.
 
@@ -48,15 +48,15 @@
 	font-size: 9pt;
       }
       a:link {
- 	color: #1f00ff;
+	color: #1f00ff;
 	text-decoration: none;
       }
       a:visited {
- 	color: #1f00ff;
+	color: #1f00ff;
 	text-decoration: none;
       }
       a:hover {
- 	color: red;
+	color: red;
       }
       #menu a {
         text-decoration: underline;

djgpp/Makefile.maint

@@ -1,7 +1,7 @@
 # DJGPP Maintainer's Makefile                                    -*-Makefile-*-
 # Requires GNU sed
 
-## Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+## Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

djgpp/README.in

@@ -1,6 +1,6 @@
 This is a port of GNU Bison @VERSION@ to MSDOS/DJGPP.
 
-Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -84,7 +84,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 	some more work to unpack, if LFN support is not available.  If LFN is
 	available then you can extract the source files from the archive with
 	any unzip program and proceed to the paragraph 3.3, below.  Any file
-	name issue will be handled by the the DJGPP configuration files.
+	name issue will be handled by the DJGPP configuration files.
 	To unpack the source distribution on SFN systems, first, you MUST use
 	the `djunpack' batch file to unzip the package.  That is because some
 	file names in the official distributions need to be changed to avoid
@@ -179,7 +179,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 	This will install the products into your DJGPP installation tree given
 	by the default prefix "/dev/env/DJDIR".  If you prefer to install them
-	into some other directory you will have to set prefix to the appropiate
+	into some other directory you will have to set prefix to the appropriate
 	value:
 	  make install prefix=z:/some/other/place
 

djgpp/config.bat

@@ -4,7 +4,7 @@ Rem Configure Bison for DJGPP.
 Rem WARNING WARNING WARNING: This file needs to have DOS CRLF end-of-line
 Rem format, or else stock DOS/Windows shells will refuse to run it.
 
-Rem Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Rem Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 Rem This program is free software: you can redistribute it and/or modify
 Rem it under the terms of the GNU General Public License as published by
@@ -471,7 +471,7 @@ redir -e /dev/null rm %XSRC%/po/stamp-cat-id
 
 Rem Update the arguments file for the configure script.
 Rem We prefer without-included-gettext because libintl.a from gettext package
-Rem is the only one that is garanteed to have been ported to DJGPP.
+Rem is the only one that is guaranteed to have been ported to DJGPP.
 echo --enable-nls --without-included-gettext >> args
 goto ConfigurePackage
 

djgpp/config.sed

@@ -2,8 +2,7 @@
 # Sed script for additional DJGPP specific editing
 # of the configure script generated by autoconf 2.62.
 
-
-# Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

djgpp/config.site

@@ -3,7 +3,7 @@
 # This is the config.site file for configuring GNU packages
 # which are to be built with DJGPP tools.
 
-# Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

djgpp/config_h.sed

@@ -1,6 +1,6 @@
 # sed script for DJGPP specific editing of config.hin
 
-# Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

djgpp/djunpack.bat

@@ -7,7 +7,7 @@ Rem This batch file unpacks the Bison distribution while simultaneously
 Rem renaming some of the files whose names are invalid on DOS or conflict
 Rem with other file names after truncation to DOS 8+3 namespace.
 Rem
-Rem Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Rem Copyright (C) 2005-2012 Free Software Foundation, Inc.
 Rem
 Rem This program is free software: you can redistribute it and/or modify
 Rem it under the terms of the GNU General Public License as published by

djgpp/subpipe.c

@@ -1,6 +1,6 @@
 /* Subprocesses with pipes.
 
-   Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -60,7 +60,7 @@ static char tmp_file_name[2][L_tmpnam];
   do {                                                                \
     close ((fd));                                                     \
     if (unlink ((name)))                                              \
-      error (EXIT_FAILURE, 0, _("removing of `%s' failed"), (name));  \
+      error (EXIT_FAILURE, 0, _("removing of '%s' failed"), (name));  \
   } while (0)
 
 
@@ -231,17 +231,17 @@ end_of_output_subpipe(pid_t pid, int fd[2])
   {
     remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
     remove_tmp_file(STDOUT_FILENO, tmp_file_name[1]);
-    error(EXIT_FAILURE, 0, _("subsidiary program `%s' interrupted"), program);
+    error(EXIT_FAILURE, 0, _("subsidiary program '%s' interrupted"), program);
   }
   if (status)
   {
     remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
     remove_tmp_file(STDOUT_FILENO, tmp_file_name[1]);
     error(EXIT_FAILURE, 0, _(errno == ENOENT
-			     ? "subsidiary program `%s' not found"
+			     ? "subsidiary program '%s' not found"
 			     : status < 1
-			     ? "subsidiary program `%s' failed"
-			     : "subsidiary program `%s' failed (status=%i, errno=%i)"), program, status, errno);
+			     ? "subsidiary program '%s' failed"
+			     : "subsidiary program '%s' failed (status=%i, errno=%i)"), program, status, errno);
   }
 
 
@@ -283,9 +283,9 @@ reap_subpipe(pid_t pid, char const *program)
   free(arguments);
 
   if (unlink(tmp_file_name[0]))
-    error(EXIT_FAILURE, 0, _("removing of `%s' failed"), tmp_file_name[0]);
+    error(EXIT_FAILURE, 0, _("removing of '%s' failed"), tmp_file_name[0]);
   if (unlink(tmp_file_name[1]))
-    error(EXIT_FAILURE, 0, _("removing of `%s' failed"), tmp_file_name[1]);
+    error(EXIT_FAILURE, 0, _("removing of '%s' failed"), tmp_file_name[1]);
 
   if (dup2(old_stdin, STDIN_FILENO) < 0)
     error(EXIT_FAILURE, 0, "restore of bison's stdin failed");

djgpp/subpipe.h

@@ -1,5 +1,6 @@
 /* Subprocesses with pipes.
-   Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+
+   Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

djgpp/testsuite.sed

@@ -2,8 +2,7 @@
 # Sed script for additional DJGPP specific editing
 # of the testsuite script generated by autoconf 2.61.
 
-
-# Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

doc/.cvsignore

@@ -1,25 +0,0 @@
-Makefile
-bison.1
-bison.aux
-bison.cp
-bison.cps
-bison.dvi
-bison.fn
-bison.html
-bison.ky
-bison.log
-bison.pdf
-bison.pg
-bison.ps
-bison.toc
-bison.tp
-bison.vr
-cross-options.texi
-Makefile.in
-refcard.dvi
-refcard.log
-refcard.ps
-*.info*
-stamp-vti
-version.texi
-yacc.1

doc/.gitignore

@@ -1,4 +1,8 @@
+/*.info*
+/*~
+/.dirstamp
 /Makefile
+/Makefile.in
 /bison.1
 /bison.aux
 /bison.cp
@@ -15,11 +19,12 @@
 /bison.tp
 /bison.vr
 /cross-options.texi
-/Makefile.in
+/fdl.texi
+/gendocs_template
+/gpl-3.0.texi
 /refcard.dvi
 /refcard.log
 /refcard.ps
-/*.info*
 /stamp-vti
 /version.texi
 /yacc.1

doc/Doxyfile.in

@@ -391,7 +391,7 @@ EXCLUDE                = @top_srcdir@/src/scan-gram.c \
 	                 @top_builddir@/src/parse-*.[ch]
 
 # The EXCLUDE_SYMLINKS tag can be used select whether or not files or
-# directories that are symbolic links (a Unix filesystem feature) are
+# directories that are symbolic links (a Unix file system feature) are
 # excluded from the input.
 
 EXCLUDE_SYMLINKS       = YES
@@ -982,7 +982,7 @@ CLASS_GRAPH            = YES
 COLLABORATION_GRAPH    = YES
 
 # If the UML_LOOK tag is set to YES doxygen will generate inheritance and
-# collaboration diagrams in a style similiar to the OMG's Unified Modeling
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
 # Language.
 
 UML_LOOK               = NO

doc/Makefile.am

@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007, 2008 Free Software
-## Foundation, Inc.
+
+## Copyright (C) 2001-2003, 2005-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AM_MAKEINFOFLAGS = --no-split
-info_TEXINFOS = bison.texinfo
+info_TEXINFOS = bison.texi
 bison_TEXINFOS = $(srcdir)/cross-options.texi gpl-3.0.texi fdl.texi
 
 CLEANFILES = bison.fns
@@ -26,10 +26,13 @@ clean-local:
 
 CROSS_OPTIONS_PL = $(top_srcdir)/build-aux/cross-options.pl
 $(srcdir)/cross-options.texi: $(top_srcdir)/src/getargs.c $(CROSS_OPTIONS_PL)
-	-rm -f $@ $@.tmp
-	cd $(top_builddir)/src && $(MAKE) $(AM_MAKEFLAGS) bison
-	$(top_builddir)/src/bison --help | perl $(CROSS_OPTIONS_PL) >$@.tmp
-	mv $@.tmp $@
+	$(AM_V_GEN)mv -f $@ $@~ || : >$@~
+	$(AM_V_at)rm -f $@.tmp
+	$(AM_V_at)cd $(top_builddir)/src && $(MAKE) $(AM_MAKEFLAGS) bison
+	$(AM_V_at)$(top_builddir)/src/bison --help \
+	  | perl $(CROSS_OPTIONS_PL) $(top_srcdir)/src/scan-gram.l >$@.tmp
+	$(AM_V_at)diff -u $@~ $@.tmp || true
+	$(AM_V_at)mv $@.tmp $@
 MAINTAINERCLEANFILES = $(srcdir)/cross-options.texi
 
 ## ---------- ##
@@ -40,7 +43,7 @@ EXTRA_DIST = refcard.tex
 CLEANFILES += refcard.dvi refcard.log refcard.ps
 
 refcard.dvi: refcard.tex
-	tex refcard.tex
+	$(AM_V_GEN)tex refcard.tex
 
 refcard.ps: refcard.dvi
 
@@ -69,7 +72,7 @@ SUFFIXES = .x .1
 
 PREPATH = $(top_builddir)/src
 .x.1:
-	@program=`expr "/$*" : '.*/\(.*\)'` &&				\
+	$(AM_V_GEN)program=`expr "/$*" : '.*/\(.*\)'` &&		\
 	save_IFS=$IFS;							\
 	IFS=$(PATH_SEPARATOR);						\
 	for dir in $(PREPATH); do					\
@@ -77,20 +80,19 @@ PREPATH = $(top_builddir)/src
 	  echo cd $$dir '&&' $(MAKE) $(AM_MAKEFLAGS) $$program &&	\
 	  (cd $$dir && $(MAKE) $(AM_MAKEFLAGS) $$program) || exit;	\
 	done
-	@echo "Updating man page $@"
-	PATH="$(PREPATH)$(PATH_SEPARATOR)$$PATH";			     \
+	$(AM_V_at)PATH="$(PREPATH)$(PATH_SEPARATOR)$$PATH";		     \
 	export PATH;							     \
 	$(HELP2MAN)							     \
 	    --include=$*.x						     \
 	    --include=$(srcdir)/common.x				     \
 	    --output=$@.t `echo '$*' | sed 's,.*/,,'`
-	if $(remove_time_stamp) $@ >$@a.t 2>/dev/null &&		     \
+	$(AM_V_at)if $(remove_time_stamp) $@ >$@a.t 2>/dev/null &&	     \
 	   $(remove_time_stamp) $@.t | cmp $@a.t - >/dev/null 2>&1; then     \
 		touch $@;						     \
 	else								     \
 		mv $@.t $@;						     \
 	fi
-	rm -f $@*.t
+	$(AM_V_at)rm -f $@*.t
 
 nodist_man_MANS = yacc.1
 
@@ -117,6 +119,6 @@ CLEANFILES += Doxyfile
 # Sed is used to generate Doxyfile from Doxyfile.in instead of
 # configure, because the former is way faster than the latter.
 Doxyfile: $(srcdir)/Doxyfile.in
-	$(edit) $(srcdir)/Doxyfile.in >Doxyfile
+	$(AM_V_GEN)$(edit) $(srcdir)/Doxyfile.in >Doxyfile
 
 CLEANDIRS += html latex

doc/fdl.texi

@@ -1,451 +0,0 @@
-@c The GNU Free Documentation License.
-@center Version 1.2, November 2002
-
-@c This file is intended to be included within another document,
-@c hence no sectioning command or @node.  
-
-@display
-Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
-51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
-
-Everyone is permitted to copy and distribute verbatim copies
-of this license document, but changing it is not allowed.
-@end display
-
-@enumerate 0
-@item
-PREAMBLE
-
-The purpose of this License is to make a manual, textbook, or other
-functional and useful document @dfn{free} in the sense of freedom: to
-assure everyone the effective freedom to copy and redistribute it,
-with or without modifying it, either commercially or noncommercially.
-Secondarily, this License preserves for the author and publisher a way
-to get credit for their work, while not being considered responsible
-for modifications made by others.
-
-This License is a kind of ``copyleft'', which means that derivative
-works of the document must themselves be free in the same sense.  It
-complements the GNU General Public License, which is a copyleft
-license designed for free software.
-
-We have designed this License in order to use it for manuals for free
-software, because free software needs free documentation: a free
-program should come with manuals providing the same freedoms that the
-software does.  But this License is not limited to software manuals;
-it can be used for any textual work, regardless of subject matter or
-whether it is published as a printed book.  We recommend this License
-principally for works whose purpose is instruction or reference.
-
-@item
-APPLICABILITY AND DEFINITIONS
-
-This License applies to any manual or other work, in any medium, that
-contains a notice placed by the copyright holder saying it can be
-distributed under the terms of this License.  Such a notice grants a
-world-wide, royalty-free license, unlimited in duration, to use that
-work under the conditions stated herein.  The ``Document'', below,
-refers to any such manual or work.  Any member of the public is a
-licensee, and is addressed as ``you''.  You accept the license if you
-copy, modify or distribute the work in a way requiring permission
-under copyright law.
-
-A ``Modified Version'' of the Document means any work containing the
-Document or a portion of it, either copied verbatim, or with
-modifications and/or translated into another language.
-
-A ``Secondary Section'' is a named appendix or a front-matter section
-of the Document that deals exclusively with the relationship of the
-publishers or authors of the Document to the Document's overall
-subject (or to related matters) and contains nothing that could fall
-directly within that overall subject.  (Thus, if the Document is in
-part a textbook of mathematics, a Secondary Section may not explain
-any mathematics.)  The relationship could be a matter of historical
-connection with the subject or with related matters, or of legal,
-commercial, philosophical, ethical or political position regarding
-them.
-
-The ``Invariant Sections'' are certain Secondary Sections whose titles
-are designated, as being those of Invariant Sections, in the notice
-that says that the Document is released under this License.  If a
-section does not fit the above definition of Secondary then it is not
-allowed to be designated as Invariant.  The Document may contain zero
-Invariant Sections.  If the Document does not identify any Invariant
-Sections then there are none.
-
-The ``Cover Texts'' are certain short passages of text that are listed,
-as Front-Cover Texts or Back-Cover Texts, in the notice that says that
-the Document is released under this License.  A Front-Cover Text may
-be at most 5 words, and a Back-Cover Text may be at most 25 words.
-
-A ``Transparent'' copy of the Document means a machine-readable copy,
-represented in a format whose specification is available to the
-general public, that is suitable for revising the document
-straightforwardly with generic text editors or (for images composed of
-pixels) generic paint programs or (for drawings) some widely available
-drawing editor, and that is suitable for input to text formatters or
-for automatic translation to a variety of formats suitable for input
-to text formatters.  A copy made in an otherwise Transparent file
-format whose markup, or absence of markup, has been arranged to thwart
-or discourage subsequent modification by readers is not Transparent.
-An image format is not Transparent if used for any substantial amount
-of text.  A copy that is not ``Transparent'' is called ``Opaque''.
-
-Examples of suitable formats for Transparent copies include plain
-@sc{ascii} without markup, Texinfo input format, La@TeX{} input
-format, @acronym{SGML} or @acronym{XML} using a publicly available
-@acronym{DTD}, and standard-conforming simple @acronym{HTML},
-PostScript or @acronym{PDF} designed for human modification.  Examples
-of transparent image formats include @acronym{PNG}, @acronym{XCF} and
-@acronym{JPG}.  Opaque formats include proprietary formats that can be
-read and edited only by proprietary word processors, @acronym{SGML} or
-@acronym{XML} for which the @acronym{DTD} and/or processing tools are
-not generally available, and the machine-generated @acronym{HTML},
-PostScript or @acronym{PDF} produced by some word processors for
-output purposes only.
-
-The ``Title Page'' means, for a printed book, the title page itself,
-plus such following pages as are needed to hold, legibly, the material
-this License requires to appear in the title page.  For works in
-formats which do not have any title page as such, ``Title Page'' means
-the text near the most prominent appearance of the work's title,
-preceding the beginning of the body of the text.
-
-A section ``Entitled XYZ'' means a named subunit of the Document whose
-title either is precisely XYZ or contains XYZ in parentheses following
-text that translates XYZ in another language.  (Here XYZ stands for a
-specific section name mentioned below, such as ``Acknowledgements'',
-``Dedications'', ``Endorsements'', or ``History''.)  To ``Preserve the Title''
-of such a section when you modify the Document means that it remains a
-section ``Entitled XYZ'' according to this definition.
-
-The Document may include Warranty Disclaimers next to the notice which
-states that this License applies to the Document.  These Warranty
-Disclaimers are considered to be included by reference in this
-License, but only as regards disclaiming warranties: any other
-implication that these Warranty Disclaimers may have is void and has
-no effect on the meaning of this License.
-
-@item
-VERBATIM COPYING
-
-You may copy and distribute the Document in any medium, either
-commercially or noncommercially, provided that this License, the
-copyright notices, and the license notice saying this License applies
-to the Document are reproduced in all copies, and that you add no other
-conditions whatsoever to those of this License.  You may not use
-technical measures to obstruct or control the reading or further
-copying of the copies you make or distribute.  However, you may accept
-compensation in exchange for copies.  If you distribute a large enough
-number of copies you must also follow the conditions in section 3.
-
-You may also lend copies, under the same conditions stated above, and
-you may publicly display copies.
-
-@item
-COPYING IN QUANTITY
-
-If you publish printed copies (or copies in media that commonly have
-printed covers) of the Document, numbering more than 100, and the
-Document's license notice requires Cover Texts, you must enclose the
-copies in covers that carry, clearly and legibly, all these Cover
-Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
-the back cover.  Both covers must also clearly and legibly identify
-you as the publisher of these copies.  The front cover must present
-the full title with all words of the title equally prominent and
-visible.  You may add other material on the covers in addition.
-Copying with changes limited to the covers, as long as they preserve
-the title of the Document and satisfy these conditions, can be treated
-as verbatim copying in other respects.
-
-If the required texts for either cover are too voluminous to fit
-legibly, you should put the first ones listed (as many as fit
-reasonably) on the actual cover, and continue the rest onto adjacent
-pages.
-
-If you publish or distribute Opaque copies of the Document numbering
-more than 100, you must either include a machine-readable Transparent
-copy along with each Opaque copy, or state in or with each Opaque copy
-a computer-network location from which the general network-using
-public has access to download using public-standard network protocols
-a complete Transparent copy of the Document, free of added material.
-If you use the latter option, you must take reasonably prudent steps,
-when you begin distribution of Opaque copies in quantity, to ensure
-that this Transparent copy will remain thus accessible at the stated
-location until at least one year after the last time you distribute an
-Opaque copy (directly or through your agents or retailers) of that
-edition to the public.
-
-It is requested, but not required, that you contact the authors of the
-Document well before redistributing any large number of copies, to give
-them a chance to provide you with an updated version of the Document.
-
-@item
-MODIFICATIONS
-
-You may copy and distribute a Modified Version of the Document under
-the conditions of sections 2 and 3 above, provided that you release
-the Modified Version under precisely this License, with the Modified
-Version filling the role of the Document, thus licensing distribution
-and modification of the Modified Version to whoever possesses a copy
-of it.  In addition, you must do these things in the Modified Version:
-
-@enumerate A
-@item
-Use in the Title Page (and on the covers, if any) a title distinct
-from that of the Document, and from those of previous versions
-(which should, if there were any, be listed in the History section
-of the Document).  You may use the same title as a previous version
-if the original publisher of that version gives permission.
-
-@item
-List on the Title Page, as authors, one or more persons or entities
-responsible for authorship of the modifications in the Modified
-Version, together with at least five of the principal authors of the
-Document (all of its principal authors, if it has fewer than five),
-unless they release you from this requirement.
-
-@item
-State on the Title page the name of the publisher of the
-Modified Version, as the publisher.
-
-@item
-Preserve all the copyright notices of the Document.
-
-@item
-Add an appropriate copyright notice for your modifications
-adjacent to the other copyright notices.
-
-@item
-Include, immediately after the copyright notices, a license notice
-giving the public permission to use the Modified Version under the
-terms of this License, in the form shown in the Addendum below.
-
-@item
-Preserve in that license notice the full lists of Invariant Sections
-and required Cover Texts given in the Document's license notice.
-
-@item
-Include an unaltered copy of this License.
-
-@item
-Preserve the section Entitled ``History'', Preserve its Title, and add
-to it an item stating at least the title, year, new authors, and
-publisher of the Modified Version as given on the Title Page.  If
-there is no section Entitled ``History'' in the Document, create one
-stating the title, year, authors, and publisher of the Document as
-given on its Title Page, then add an item describing the Modified
-Version as stated in the previous sentence.
-
-@item
-Preserve the network location, if any, given in the Document for
-public access to a Transparent copy of the Document, and likewise
-the network locations given in the Document for previous versions
-it was based on.  These may be placed in the ``History'' section.
-You may omit a network location for a work that was published at
-least four years before the Document itself, or if the original
-publisher of the version it refers to gives permission.
-
-@item
-For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
-the Title of the section, and preserve in the section all the
-substance and tone of each of the contributor acknowledgements and/or
-dedications given therein.
-
-@item
-Preserve all the Invariant Sections of the Document,
-unaltered in their text and in their titles.  Section numbers
-or the equivalent are not considered part of the section titles.
-
-@item
-Delete any section Entitled ``Endorsements''.  Such a section
-may not be included in the Modified Version.
-
-@item
-Do not retitle any existing section to be Entitled ``Endorsements'' or
-to conflict in title with any Invariant Section.
-
-@item
-Preserve any Warranty Disclaimers.
-@end enumerate
-
-If the Modified Version includes new front-matter sections or
-appendices that qualify as Secondary Sections and contain no material
-copied from the Document, you may at your option designate some or all
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-@item
-COLLECTIONS OF DOCUMENTS
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-FUTURE REVISIONS OF THIS LICENSE
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-The Free Software Foundation may publish new, revised versions
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-@end enumerate
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-@page
-@heading ADDENDUM: How to use this License for your documents
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-To use this License in a document you have written, include a copy of
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-@end group
-@end smallexample
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-If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
-replace the ``with@dots{}Texts.'' line with this:
-
-@smallexample
-@group
-    with the Invariant Sections being @var{list their titles}, with
-    the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
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-@end smallexample
-
-If you have Invariant Sections without Cover Texts, or some other
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-If your document contains nontrivial examples of program code, we
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-
-@c Local Variables:
-@c ispell-local-pdict: "ispell-dict"
-@c End:
-

doc/gpl-3.0.texi

@@ -1,717 +0,0 @@
-@c The GNU General Public License.
-@center Version 3, 29 June 2007
-
-@c This file is intended to be included within another document,
-@c hence no sectioning command or @node.  
-
-@display
-Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
-
-Everyone is permitted to copy and distribute verbatim copies of this
-license document, but changing it is not allowed.
-@end display
-
-@heading Preamble
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-Convey the object code by offering access from a designated place
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-Convey the object code using peer-to-peer transmission, provided you
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-@end enumerate
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-@item Additional Terms.
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-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-@item Automatic Licensing of Downstream Recipients.
-
-Each time you convey a covered work, the recipient automatically
-receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
-for enforcing compliance by third parties with this License.
-
-An ``entity transaction'' is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
-work results from an entity transaction, each party to that
-transaction who receives a copy of the work also receives whatever
-licenses to the work the party's predecessor in interest had or could
-give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if
-the predecessor has it or can get it with reasonable efforts.
-
-You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
-not impose a license fee, royalty, or other charge for exercise of
-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-@item Patents.
-
-A ``contributor'' is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's ``contributor version''.
-
-A contributor's ``essential patent claims'' are all patent claims owned
-or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, ``control'' includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-In the following three paragraphs, a ``patent license'' is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To ``grant'' such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  ``Knowingly relying'' means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-A patent license is ``discriminatory'' if it does not include within the
-scope of its coverage, prohibits the exercise of, or is conditioned on
-the non-exercise of one or more of the rights that are specifically
-granted under this License.  You may not convey a covered work if you
-are a party to an arrangement with a third party that is in the
-business of distributing software, under which you make payment to the
-third party based on the extent of your activity of conveying the
-work, and under which the third party grants, to any of the parties
-who would receive the covered work from you, a discriminatory patent
-license (a) in connection with copies of the covered work conveyed by
-you (or copies made from those copies), or (b) primarily for and in
-connection with specific products or compilations that contain the
-covered work, unless you entered into that arrangement, or that patent
-license was granted, prior to 28 March 2007.
-
-Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-@item No Surrender of Others' Freedom.
-
-If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey
-a covered work so as to satisfy simultaneously your obligations under
-this License and any other pertinent obligations, then as a
-consequence you may not convey it at all.  For example, if you agree
-to terms that obligate you to collect a royalty for further conveying
-from those to whom you convey the Program, the only way you could
-satisfy both those terms and this License would be to refrain entirely
-from conveying the Program.
-
-@item Use with the GNU Affero General Public License.
-
-Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-@item Revised Versions of this License.
-
-The Free Software Foundation may publish revised and/or new versions
-of the GNU General Public License from time to time.  Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number.  If the Program
-specifies that a certain numbered version of the GNU General Public
-License ``or any later version'' applies to it, you have the option of
-following the terms and conditions either of that numbered version or
-of any later version published by the Free Software Foundation.  If
-the Program does not specify a version number of the GNU General
-Public License, you may choose any version ever published by the Free
-Software Foundation.
-
-If the Program specifies that a proxy can decide which future versions
-of the GNU General Public License can be used, that proxy's public
-statement of acceptance of a version permanently authorizes you to
-choose that version for the Program.
-
-Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-@item Disclaimer of Warranty.
-
-THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
-WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND
-PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE
-DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
-CORRECTION.
-
-@item Limitation of Liability.
-
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
-CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
-ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
-NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
-LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
-TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
-PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
-
-@item Interpretation of Sections 15 and 16.
-
-If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-@end enumerate
-
-@heading END OF TERMS AND CONDITIONS
-
-@heading How to Apply These Terms to Your New Programs
-
-If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these
-terms.
-
-To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the ``copyright'' line and a pointer to where the full notice is found.
-
-@smallexample
-@var{one line to give the program's name and a brief idea of what it does.}  
-Copyright (C) @var{year} @var{name of author}
-
-This program 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 3 of the License, or (at
-your option) any later version.
-
-This program 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 this program.  If not, see @url{http://www.gnu.org/licenses/}.
-@end smallexample
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-@smallexample
-@var{program} Copyright (C) @var{year} @var{name of author} 
-This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
-This is free software, and you are welcome to redistribute it
-under certain conditions; type @samp{show c} for details.
-@end smallexample
-
-The hypothetical commands @samp{show w} and @samp{show c} should show
-the appropriate parts of the General Public License.  Of course, your
-program's commands might be different; for a GUI interface, you would
-use an ``about box''.
-
-You should also get your employer (if you work as a programmer) or school,
-if any, to sign a ``copyright disclaimer'' for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-@url{http://www.gnu.org/licenses/}.
-
-The GNU General Public License does not permit incorporating your
-program into proprietary programs.  If your program is a subroutine
-library, you may consider it more useful to permit linking proprietary
-applications with the library.  If this is what you want to do, use
-the GNU Lesser General Public License instead of this License.  But
-first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.

doc/refcard.tex

@@ -19,7 +19,7 @@
 \def\finalout{\overfullrule=0pt}
 %\finalout
 
-% Copyright (c) 1998, 2001  Free Software Foundation, Inc.
+% Copyright (c) 1998, 2001, 2009-2012 Free Software Foundation, Inc.
 %
 % This file is part of Bison.
 %

etc/.cvsignore

@@ -1,3 +0,0 @@
-Makefile
-Makefile.in
-bench.pl

etc/Makefile.am

@@ -1,4 +1,4 @@
-## Copyright (C) 2006 Free Software Foundation, Inc.
+## Copyright (C) 2006, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

etc/README

@@ -1,6 +1,3 @@
-A directory of tools provided to people using CVS Bison.  None of
-these is distributed.
-
 * bench.pl
 A primitive Perl script to run benches.  Currently its only bench is
 the usual calculator: it has a lightweight processing part (but not
@@ -19,7 +16,7 @@ straightforward use of _build/src/bison would.)
 
 --
 
-Copyright (C) 2006 Free Software Foundation, Inc.
+Copyright (C) 2006, 2009-2012 Free Software Foundation, Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 

etc/bench.pl.in

@@ -1,6 +1,6 @@
 #! /usr/bin/perl -w
 
-# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008-2012 Free Software Foundation, Inc.
 #
 # This file is part of Bison, the GNU Compiler Compiler.
 #
@@ -134,8 +134,8 @@ sub calc_grammar ($$$)
     or die;
   print $out <<EOF;
 %{
+#include <assert.h>
 #include <stdio.h>
-
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
@@ -291,9 +291,8 @@ yylex (void)
 static int
 power (int base, int exponent)
 {
+  assert (0 <= exponent);
   int res = 1;
-  if (exponent < 0)
-    exit (3);
   for (/* Niente */; exponent; --exponent)
     res *= base;
   return res;
@@ -343,8 +342,8 @@ sub bench_grammar ($)
     (
      "pull-impure" => '',
      "pull-pure" => '%define api.pure',
-     "push-impure" => '%define api.push_pull "both"',
-     "push-pure" => '%define api.push_pull "both" %define api.pure',
+     "push-impure" => '%define api.push-pull "both"',
+     "push-pure" => '%define api.push-pull "both" %define api.pure',
     );
 
   my %bench;

etc/make-ChangeLogs

@@ -1,16 +0,0 @@
-#! /bin/sh
-
-for dir in . po src doc; do
-  (
-    cd $dir && rcs2log -r -l \
-  -u 'akim	Akim Demaille	[email protected]' \
-  -u 'djm	David J. MacKenzie	[email protected]' \
-  -u 'eggert	Paul Eggert	[email protected]' \
-  -u 'friedman	Noah Friedman	[email protected]' \
-  -u 'hag	Daniel Hagerty	[email protected]' \
-  -u 'jthilo	Jesse Thilo	[email protected]' \
-  -u 'meyering	Jim Meyering	[email protected]' \
-  -u 'rms	Richard Stallman	[email protected]' \
-  | sed -e 's,/opt/cvs/bison/bison/,,g' > ChangeLog
-  )
-done

examples/Makefile.am

@@ -1,5 +1,5 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2005 Free Software Foundation, Inc.
+## Copyright (C) 2005, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

examples/calc++/.cvsignore

@@ -1,11 +0,0 @@
-*.cc
-*.hh
-*.ll
-*.output
-*.stamp
-*.tmp
-*.yy
-.deps
-Makefile
-Makefile.in
-calc++

examples/calc++/Makefile.am

@@ -1,5 +1,5 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+## Copyright (C) 2005-2006, 2009-2012 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -22,21 +22,25 @@ BISON = $(top_builddir)/tests/bison
 BISON_IN = $(top_srcdir)/tests/bison.in
 
 $(BISON): $(BISON_IN)
-	cd $(top_builddir)/tests && $(MAKE) $(AM_MAKEFLAGS) bison
+	$(AM_V_GEN)cd $(top_builddir)/tests && $(MAKE) $(AM_MAKEFLAGS) bison
 
 ## ------------ ##
 ## Extracting.  ##
 ## ------------ ##
 
-doc = $(top_srcdir)/doc/bison.texinfo
+doc = $(top_srcdir)/doc/bison.texi
 extexi = $(top_srcdir)/examples/extexi
 # Extract in src.
-$(calc_extracted): $(doc) $(extexi)
-	cd $(srcdir) && \
+$(srcdir)/calc.stamp: $(doc) $(extexi)
+	$(AM_V_GEN)rm -f $@ $@.tmp
+	$(AM_V_at)touch $@.tmp
+	$(AM_V_at)cd $(srcdir) && \
 	   $(AWK) -f ../extexi -v VERSION="$(VERSION)" \
-	     ../../doc/bison.texinfo -- calc++-parser.yy \
+	     ../../doc/bison.texi -- calc++-parser.yy \
 	     calc++-scanner.ll calc++.cc calc++-driver.hh calc++-driver.cc
+	$(AM_V_at)mv $@.tmp $@
 
+$(calc_extracted): $(srcdir)/calc.stamp
 
 ## ------------------- ##
 ## Parser generation.  ##
@@ -50,18 +54,21 @@ MAINTAINERCLEANFILES = $(srcdir)/*.stamp $(BUILT_SOURCES)
 # Compile the parser and save cycles.
 # This code comes from "Handling Tools that Produce Many Outputs",
 # from the Automake documentation.
-EXTRA_DIST = $(srcdir)/calc++-parser.stamp $(srcdir)/calc++-parser.yy
+EXTRA_DIST =					\
+  $(srcdir)/calc++-parser.stamp			\
+  $(srcdir)/calc++-parser.yy			\
+  $(srcdir)/calc.stamp
 # Don't depend on $(BISON) otherwise we would rebuild these files
 # in srcdir, including during distcheck, which is forbidden.
 $(srcdir)/calc++-parser.stamp: $(srcdir)/calc++-parser.yy $(BISON_IN)
-	@rm -f calc++-parser.tmp
-	@touch calc++-parser.tmp
-	$(BISON) -d -ra -S lalr1.cc -o $(srcdir)/calc++-parser.cc \
+	$(AM_V_GEN)rm -f calc++-parser.tmp
+	$(AM_V_at)touch calc++-parser.tmp
+	$(AM_V_at)$(BISON) -d -ra -S lalr1.cc -o $(srcdir)/calc++-parser.cc \
 	  $(srcdir)/calc++-parser.yy
-	@mv -f calc++-parser.tmp $@
+	$(AM_V_at)mv -f calc++-parser.tmp $@
 
 $(calc_sources_generated): $(srcdir)/calc++-parser.stamp
-	@if test -f $@; then :; else \
+	$(AM_V_GEN)if test -f $@; then :; else \
 	  rm -f $(srcdir)/calc++-parser.stamp && \
 	  $(MAKE) $(AM_MAKEFLAGS) $(srcdir)/calc++-parser.stamp; \
 	fi
@@ -74,11 +81,11 @@ $(calc_sources_generated): $(srcdir)/calc++-parser.stamp
 check_PROGRAMS = calc++
 
 calc_sources_extracted = $(srcdir)/calc++-scanner.ll $(srcdir)/calc++.cc \
-	$(srcdir)/calc++-driver.hh $(srcdir)/calc++-driver.cc
+  $(srcdir)/calc++-driver.hh $(srcdir)/calc++-driver.cc
 calc_extracted = $(calc_sources_extracted) $(srcdir)/calc++-parser.yy
 calc_sources_generated = \
-	$(srcdir)/stack.hh $(srcdir)/position.hh $(srcdir)/location.hh \
-	$(srcdir)/calc++-parser.hh $(srcdir)/calc++-parser.cc
+  $(srcdir)/stack.hh $(srcdir)/position.hh $(srcdir)/location.hh \
+  $(srcdir)/calc++-parser.hh $(srcdir)/calc++-parser.cc
 
 calc___SOURCES = $(calc_sources_extracted) $(calc_sources_generated)
 

examples/calc++/test

@@ -1,5 +1,20 @@
 #! /bin/sh
 
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
 test -z "$VERBOSE" && {
    exec > /dev/null 2>&1
    set -x

examples/extexi

@@ -1,7 +1,9 @@
 # Extract all examples from the manual source.            -*- AWK -*-
 
 # This file is part of GNU Bison
-# Copyright 1992, 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
+
+# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2012 Free Software
+# Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

lib/.cvsignore

@@ -1,105 +0,0 @@
-.deps
-Makefile
-Makefile.in
-argmatch.c
-argmatch.h
-basename.c
-c-ctype.c
-c-ctype.h
-c-strcase.h
-c-strcasecmp.c
-c-strncasecmp.c
-charset.alias
-config.charset
-config.h
-config.hin
-configmake.h
-dirname.c
-dirname.h
-dup-safer.c
-errno.in.h
-error.c
-error.h
-exitfail.c
-exitfail.h
-fd-safer.c
-fopen-safer.c
-getopt.c
-getopt.h
-getopt.in.h
-getopt1.c
-getopt_.h
-getopt_int.h
-gettext.h
-gnulib.mk
-hash.c
-hash.h
-intprops.h
-inttypes.h
-inttypes.in.h
-inttypes_.h
-localcharset.c
-localcharset.h
-malloc.c
-mbswidth.c
-mbswidth.h
-obstack.c
-obstack.h
-pipe-safer.c
-quote.c
-quote.h
-quotearg.c
-quotearg.h
-ref-add.sed
-ref-add.sin
-ref-del.sed
-ref-del.sin
-stamp-h1
-stdbool.h
-stdbool.in.h
-stdbool_.h
-stdint.h
-stdint.in.h
-stdint_.h
-stdio--.h
-stdio-safer.h
-stdlib.h
-stdlib.in.h
-stdlib_.h
-stpcpy.c
-streq.h
-strerror.c
-string.h
-string.in.h
-string_.h
-stripslash.c
-strndup.c
-strnlen.c
-strtol.c
-strtoul.c
-strverscmp.c
-strverscmp.h
-unistd--.h
-unistd-safer.h
-unistd.h
-unistd.in.h
-unistd_.h
-unitypes.h
-uniwidth
-uniwidth.h
-unlocked-io.h
-unsetenv.c
-verify.h
-wchar.h
-wchar.in.h
-wchar_.h
-wctype.h
-wctype.in.h
-wctype_.h
-wcwidth.c
-wcwidth.h
-xalloc-die.c
-xalloc.h
-xmalloc.c
-xstrndup.c
-xstrndup.h

lib/.gitignore

@@ -1,37 +1,87 @@
 /*.a
+/*.bak
 /*.o
 /*~
 /.deps
+/.dirstamp
 /Makefile
 /Makefile.in
+/alignof.h
+/alloca.h
+/alloca.in.h
+/arg-nonnull.h
 /argmatch.c
 /argmatch.h
+/asnprintf.c
+/basename-lgpl.c
 /basename.c
+/binary-io.h
+/bitrotate.h
+/c++defs.h
 /c-ctype.c
 /c-ctype.h
 /c-strcase.h
 /c-strcasecmp.c
+/c-strcaseeq.h
 /c-strncasecmp.c
+/calloc.c
 /charset.alias
+/cloexec.c
+/cloexec.h
+/close-hook.c
+/close-hook.h
+/close-stream.c
+/close-stream.h
+/close.c
+/closeout.c
+/closeout.h
 /config.charset
 /config.h
-/config.hin
+/config.in.h
 /configmake.h
+/dirname-lgpl.c
 /dirname.c
 /dirname.h
+/dosname.h
+/dup-safer-flag.c
 /dup-safer.c
+/dup2.c
+/errno.h
 /errno.in.h
 /error.c
 /error.h
 /exitfail.c
 /exitfail.h
+/fatal-signal.c
+/fatal-signal.h
+/fclose.c
+/fcntl.c
+/fcntl.h
+/fcntl.in.h
+/fd-hook.c
+/fd-hook.h
+/fd-safer-flag.c
 /fd-safer.c
+/float+.h
+/float.c
+/float.h
+/float.in.h
 /fopen-safer.c
+/fopen.c
+/fpending.c
+/fpending.h
+/fprintf.c
+/fpucw.h
+/frexp.c
+/frexpl.c
+/fseterr.c
+/fseterr.h
+/fstat.c
+/getdtablesize.c
 /getopt.c
 /getopt.h
 /getopt.in.h
 /getopt1.c
-/getopt_.h
 /getopt_int.h
 /gettext.h
 /gnulib.mk
@@ -40,69 +90,181 @@
 /intprops.h
 /inttypes.h
 /inttypes.in.h
-/inttypes_.h
+/ioctl.c
+/isnan.c
+/isnand-nolibm.h
+/isnand.c
+/isnanf-nolibm.h
+/isnanf.c
+/isnanl-nolibm.h
+/isnanl.c
+/iswblank.c
+/itold.c
+/ldexpl.c
 /localcharset.c
 /localcharset.h
 /malloc.c
+/math.h
+/math.in.h
+/mbchar.c
+/mbchar.h
+/mbrtowc.c
+/mbschr.c
+/mbsinit.c
+/mbsrchr.c
 /mbswidth.c
 /mbswidth.h
+/mbuiter.h
+/memchr.c
+/memchr.valgrind
+/msvc-inval.c
+/msvc-inval.h
+/msvc-nothrow.c
+/msvc-nothrow.h
+/nonblocking.c
+/nonblocking.h
 /obstack.c
 /obstack.h
+/open.c
+/pathmax.h
+/perror.c
 /pipe-safer.c
+/pipe2-safer.c
+/pipe2.c
+/printf-args.c
+/printf-args.h
+/printf-frexp.c
+/printf-frexp.h
+/printf-frexpl.c
+/printf-frexpl.h
+/printf-parse.c
+/printf-parse.h
+/printf.c
+/progname.c
+/progname.h
 /quote.c
 /quote.h
 /quotearg.c
 /quotearg.h
+/raise.c
+/rawmemchr.c
+/rawmemchr.valgrind
+/realloc.c
 /ref-add.sed
 /ref-add.sin
 /ref-del.sed
 /ref-del.sin
+/sched.h
+/sched.in.h
+/sig-handler.h
+/sigaction.c
+/signal.h
+/signal.in.h
+/signbitd.c
+/signbitf.c
+/signbitl.c
+/sigprocmask.c
+/size_max.h
+/snprintf.c
+/spawn-pipe.c
+/spawn-pipe.h
+/spawn.h
+/spawn.in.h
+/spawn_faction_addclose.c
+/spawn_faction_adddup2.c
+/spawn_faction_addopen.c
+/spawn_faction_destroy.c
+/spawn_faction_init.c
+/spawn_int.h
+/spawnattr_destroy.c
+/spawnattr_init.c
+/spawnattr_setflags.c
+/spawnattr_setsigmask.c
+/spawni.c
+/spawnp.c
+/sprintf.c
 /stamp-h1
+/stat.c
 /stdbool.h
 /stdbool.in.h
-/stdbool_.h
+/stddef.h
+/stddef.in.h
 /stdint.h
 /stdint.in.h
-/stdint_.h
 /stdio--.h
+/stdio-impl.h
 /stdio-safer.h
+/stdio-write.c
+/stdio.h
+/stdio.in.h
 /stdlib.h
 /stdlib.in.h
-/stdlib_.h
 /stpcpy.c
+/strchrnul.c
+/strchrnul.valgrind
+/strdup.c
 /streq.h
+/strerror-override.c
+/strerror-override.h
 /strerror.c
+/strerror_r.c
 /string.h
 /string.in.h
-/string_.h
 /stripslash.c
 /strndup.c
 /strnlen.c
+/strnlen1.c
+/strnlen1.h
 /strtol.c
 /strtoul.c
 /strverscmp.c
-/strverscmp.h
+/sys
+/sys_ioctl.h
+/sys_ioctl.in.h
+/sys_socket.h
+/sys_socket.in.h
+/sys_stat.h
+/sys_stat.in.h
+/sys_wait.h
+/sys_wait.in.h
+/sysexits.in.h
+/time.h
+/time.in.h
 /unistd--.h
 /unistd-safer.h
 /unistd.h
 /unistd.in.h
-/unistd_.h
 /unitypes.h
+/unitypes.in.h
 /uniwidth
 /uniwidth.h
+/uniwidth.in.h
 /unlocked-io.h
 /unsetenv.c
+/vasnprintf.c
+/vasnprintf.h
 /verify.h
+/vfprintf.c
+/vsnprintf.c
+/vsprintf.c
+/w32sock.h
+/w32spawn.h
+/wait-process.c
+/wait-process.h
+/waitpid.c
+/warn-on-use.h
 /wchar.h
 /wchar.in.h
-/wchar_.h
 /wctype.h
 /wctype.in.h
-/wctype_.h
 /wcwidth.c
-/wcwidth.h
 /xalloc-die.c
+/xalloc-oversized.h
 /xalloc.h
 /xmalloc.c
+/xsize.h
 /xstrndup.c
 /xstrndup.h
+/xmemdup0.c
+/xmemdup0.h
+/sys_types.in.h

lib/Makefile.am

@@ -1,6 +1,6 @@
 # Make bison/lib.
 
-# Copyright (C) 2001, 2002, 2003, 2004, 2006, 2008 Free Software Foundation,
+# Copyright (C) 2001-2004, 2006, 2008-2012 Free Software Foundation,
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -16,9 +16,19 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+AM_CFLAGS =
+AM_CPPFLAGS =
+BUILT_SOURCES =
+CLEANFILES =
+EXTRA_DIST =
+MOSTLYCLEANDIRS =
+MOSTLYCLEANFILES =
+SUFFIXES =
+noinst_LIBRARIES =
+
 include gnulib.mk
 
-AM_CFLAGS = $(WARN_CFLAGS)
+AM_CFLAGS += $(WARN_CFLAGS)
 
 # Implementation of bitsets.
 bitsets_sources = \
@@ -37,7 +47,6 @@ timevars_sources = \
 # Non-gnulib sources in Bison's internal library.
 libbison_a_SOURCES += \
   get-errno.h get-errno.c \
-  subpipe.h subpipe.c \
   $(bitsets_sources) $(additional_bitsets_sources) $(timevars_sources)
 
 # The Yacc compatibility library.

lib/abitset.c

@@ -1,5 +1,8 @@
 /* Array bitsets.
-   Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2003, 2006, 2009-2012 Free Software Foundation,
+   Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/abitset.h

@@ -1,5 +1,7 @@
 /* Functions to support abitsets.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+   Copyright (C) 2002, 2004, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/bbitset.h

@@ -1,5 +1,8 @@
 /* Base bitset stuff.
-   Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2004, 2006, 2009-2012 Free Software Foundation,
+   Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/bitset.c

@@ -1,5 +1,7 @@
 /* General bitsets.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/bitset.h

@@ -1,5 +1,7 @@
 /* Generic bitsets.
-   Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2004, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/bitset_stats.c

@@ -1,5 +1,7 @@
 /* Bitset statistics.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify
@@ -251,15 +253,15 @@ bitset_stats_read (const char *file_name)
   if (file)
     {
       if (fread (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
-		 1, file) != 1)
-	{
-	  if (ferror (file))
-	    perror (_("Could not read stats file."));
-	  else
-	    fprintf (stderr, _("Bad stats file size.\n"));
-	}
+                 1, file) != 1)
+        {
+          if (ferror (file))
+            perror (_("cannot read stats file"));
+          else
+            fprintf (stderr, _("bad stats file size\n"));
+        }
       if (fclose (file) != 0)
-	perror (_("Could not read stats file."));
+        perror (_("cannot read stats file"));
     }
   bitset_stats_info_data.runs++;
 }
@@ -281,13 +283,13 @@ bitset_stats_write (const char *file_name)
   if (file)
     {
       if (fwrite (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
-		  1, file) != 1)
-	perror (_("Could not write stats file."));
+                  1, file) != 1)
+        perror (_("cannot write stats file"));
       if (fclose (file) != 0)
-	perror (_("Could not write stats file."));
+        perror (_("cannot write stats file"));
     }
   else
-    perror (_("Could not open stats file for writing."));
+    perror (_("cannot open stats file for writing"));
 }
 
 
@@ -574,11 +576,9 @@ bitset_stats_list (bitset bset, bitset_bindex *list,
   bitset_bindex tmp;
   bitset_bindex size;
   bitset_bindex i;
-  enum bitset_type type;
 
   count = BITSET_LIST_ (bset->s.bset, list, num, next);
 
-  type = BITSET_TYPE_ (bset->s.bset);
   BITSET_STATS_LISTS_INC (bset->s.bset);
 
   /* Log histogram of number of set bits.  */

lib/bitset_stats.h

@@ -1,5 +1,7 @@
 /* Functions to support bitset statistics.
-   Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2004, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/bitsetv-print.c

@@ -1,5 +1,7 @@
 /* Bitset vectors.
-   Copyright (C) 2001, 2002, 2004, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2001-2002, 2004, 2006, 2009-2012 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

lib/bitsetv-print.h

@@ -1,5 +1,7 @@
 /* Bitset vectors.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+   Copyright (C) 2002, 2004, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Akim Demaille (akim@freefriends.org).
 
    This program is free software: you can redistribute it and/or modify

lib/bitsetv.c

@@ -1,5 +1,7 @@
 /* Bitset vectors.
-   Copyright (C) 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2001-2002, 2004-2006, 2009-2012 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

lib/bitsetv.h

@@ -1,5 +1,7 @@
 /* Bitset vectors.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+   Copyright (C) 2002, 2004, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify

lib/ebitset.c

@@ -1,5 +1,7 @@
 /* Functions to support expandable bitsets.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify
@@ -1333,17 +1335,12 @@ ebitset_bytes (bitset_bindex n_bits ATTRIBUTE_UNUSED)
 bitset
 ebitset_init (bitset bset, bitset_bindex n_bits)
 {
-  bitset_windex size;
-
   bset->b.vtable = &ebitset_vtable;
 
   bset->b.csize = EBITSET_ELT_WORDS;
 
   EBITSET_ZERO_SET (bset);
 
-  size = n_bits ? (n_bits + EBITSET_ELT_BITS - 1) / EBITSET_ELT_BITS
-    : EBITSET_INITIAL_SIZE;
-
   EBITSET_ASIZE (bset) = 0;
   EBITSET_ELTS (bset) = 0;
   ebitset_resize (bset, n_bits);