version 2.6.2

* NEWS: Record release date.

.cvsignore

@@ -1,29 +0,0 @@
-*.flc
-*.patch *.log log patches applied
-*.prj
-ABOUT-NLS
-COPYING
-INSTALL
-Makefile
-Makefile.in
-_*
-a.exe
-a.out
-aclocal.m4
-autom4te.cache
-b.out
-bison-*
-conf[0-9]*
-confdefs*
-config.cache
-config.h
-config.hin
-config.log
-config.status
-configure
-configure.lineno
-conftest*
-intl
-patches
-releases
-stamp-h*

.gitattributes

@@ -0,0 +1 @@
+

.gitignore

@@ -0,0 +1,34 @@
+/*.cache
+/*.flc
+/*.prj
+/*~
+/.tarball-version
+/.version
+/ABOUT-NLS
+/COPYING
+/ChangeLog
+/GNUmakefile
+/INSTALL
+/Makefile
+/Makefile.in
+/README-release
+/_*
+/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
+/maint.mk
+/patches
+/releases
+/stamp-h*

.gitmodules

@@ -0,0 +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

@@ -0,0 +1 @@
+2.6.1

.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/>.

COPYING

@@ -1,285 +1,626 @@
-		    GNU GENERAL PUBLIC LICENSE
+                    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
+                       Version 3, 29 June 2007
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
-                       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.
 
-			    Preamble
+                            Preamble
 
-  The licenses for most software are designed to take away your
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+
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 modification follow.
-
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+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+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.
+
+  10. 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.
+
+  11. 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.
 
-  7. If, as a consequence of a court judgment or allegation of patent
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
-infringement or for any other reason (not limited to patent issues),
+patent license under the contributor's essential patent claims, to
-conditions are imposed on you (whether by court order, agreement or
+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.
+
+  12. 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
+excuse you from the conditions of this License.  If you cannot convey a
-distribute so as to satisfy simultaneously your obligations under this
+covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
+License and any other pertinent obligations, then as a consequence you may
-may not distribute the Program at all.  For example, if a patent
+not convey it at all.  For example, if you agree to terms that obligate you
-license would not permit royalty-free redistribution of the Program by
+to collect a royalty for further conveying from those to whom you convey
-all those who receive copies directly or indirectly through you, then
+the Program, the only way you could satisfy both those terms and this
-the only way you could satisfy both it and this License would be to
+License would be to refrain entirely from conveying the Program.
-refrain entirely from distribution of the Program.
 
-If any portion of this section is held invalid or unenforceable under
+  13. Use with the GNU Affero General Public License.
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
 
-It is not the purpose of this section to induce you to infringe any
+  Notwithstanding any other provision of this License, you have
-patents or other property right claims or to contest validity of any
+permission to link or combine any covered work with a work licensed
-such claims; this section has the sole purpose of protecting the
+under version 3 of the GNU Affero General Public License into a single
-integrity of the free software distribution system, which is
+combined work, and to convey the resulting work.  The terms of this
-implemented by public license practices.  Many people have made
+License will continue to apply to the part which is the covered work,
-generous contributions to the wide range of software distributed
+but the special requirements of the GNU Affero General Public License,
-through that system in reliance on consistent application of that
+section 13, concerning interaction through a network will apply to the
-system; it is up to the author/donor to decide if he or she is willing
+combination as such.
-to distribute software through any other system and a licensee cannot
-impose that choice.
 
-This section is intended to make thoroughly clear what is believed to
+  14. Revised Versions of this License.
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
 
-  9. The Free Software Foundation may publish revised and/or new versions
+  The Free Software Foundation may publish revised and/or new versions of
-of the General Public License from time to time.  Such new versions will
+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
+  Each version is given a distinguishing version number.  If the
-specifies a version number of this License which applies to it and "any
+Program specifies that a certain numbered version of the GNU General
-later version", you have the option of following the terms and conditions
+Public License "or any later version" applies to it, you have the
-either of that version or of any later version published by the Free
+option of following the terms and conditions either of that numbered
-Software Foundation.  If the Program does not specify a version number of
+version or of any later version published by the Free Software
-this License, you may choose any version ever published by the Free Software
+Foundation.  If the Program does not specify a version number of the
-Foundation.
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-  10. If you wish to incorporate parts of the Program into other free
+  If the Program specifies that a proxy can decide which future
-programs whose distribution conditions are different, write to the author
+versions of the GNU General Public License can be used, that proxy's
-to ask for permission.  For software which is copyrighted by the Free
+public statement of acceptance of a version permanently authorizes you
-Software Foundation, write to the Free Software Foundation; we sometimes
+to choose that version for the Program.
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
 
-			    NO WARRANTY
+  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.
 
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+  15. Disclaimer of 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.
 
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-POSSIBILITY OF SUCH DAMAGES.
 
-		     END OF TERMS AND CONDITIONS
+  16. Limitation of Liability.
-
+
-	    How to Apply These Terms to Your New Programs
+  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.
+
+  17. 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 OF TERMS AND CONDITIONS
+
+            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
@@ -287,15 +628,15 @@ 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
-convey the exclusion of warranty; and each file should have at least
+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.
 
     <one line to give the program's name and a brief idea of what it does.>
     Copyright (C) <year>  <name of author>
 
-    This program is free software; you can redistribute it and/or modify
+    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 2 of the License, or
+    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,
@@ -304,37 +645,30 @@ the "copyright" line and a pointer to where the full notice is found.
     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, write to the Free Software
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-
 
 Also add information on how to contact you by electronic and paper mail.
 
-If the program is interactive, make it output a short notice like this
+  If the program does terminal interaction, make it output a short
-when it starts in an interactive mode:
+notice like this when it starts in an interactive mode:
 
-    Gnomovision version 69, Copyright (C) year name of author
+    <program>  Copyright (C) <year>  <name of author>
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.
 
 The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
+parts of the General Public License.  Of course, your program's commands
-be called something other than `show w' and `show c'; they could even be
+might be different; for a GUI interface, you would use an "about box".
-mouse-clicks or menu items--whatever suits your program.
 
-You should also get your employer (if you work as a programmer) or your
+  You should also get your employer (if you work as a programmer) or school,
-school, if any, to sign a "copyright disclaimer" for the program, if
+if any, to sign a "copyright disclaimer" for the program, if necessary.
-necessary.  Here is a sample; alter the names:
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
 
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  The GNU General Public License does not permit incorporating your program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+into proprietary programs.  If your program is a subroutine library, you
-
+may consider it more useful to permit linking proprietary applications with
-  <signature of Ty Coon>, 1 April 1989
+the library.  If this is what you want to do, use the GNU Lesser General
-  Ty Coon, President of Vice
+Public License instead of this License.  But first, please read
-
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
-This 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 Library General
-Public License instead of this License.

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]>
 

GNUmakefile

@@ -1,58 +0,0 @@
-# Having a separate GNUmakefile lets me `include' the dynamically
-# generated rules created via Makefile.maint as well as Makefile.maint itself.
-# This makefile is used only if you run GNU Make.
-# It is necessary if you want to build targets usually of interest
-# only to the maintainer.
-
-# Copyright (C) 2001, 2003 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 2 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, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-# Systems where /bin/sh is not the default shell need this.  The $(shell)
-# command below won't work with e.g. stock DOS/Windows shells.
-ifeq ($(wildcard /bin/s[h]),/bin/sh)
-SHELL = /bin/sh
-else
-# will be used only with the next shell-test line, then overwritten
-# by a configured-in value
-SHELL = sh
-endif
-
-have-Makefile := $(shell test -f Makefile && echo yes)
-
-# If the user runs GNU make but has not yet run ./configure,
-# give them a diagnostic.
-ifeq ($(have-Makefile),yes)
-
-# Make tar archive easier to reproduce.
-export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
-
-include Makefile
-include $(srcdir)/Makefile.cfg
-include $(srcdir)/Makefile.maint
-
-else
-
-all:
-	@echo There seems to be no Makefile in this directory.
-	@echo "You must run ./configure before running \`make'."
-	@exit 1
-
-endif
-
-# Tell version 3.79 and up of GNU make to not build goals in this
-# directory in parallel.  This is necessary in case someone tries to
-# build multiple targets on one command line.
-.NOTPARALLEL:

HACKING

@@ -1,138 +0,0 @@
--*- outline -*-
-
-This file attempts to describe the rules to use when hacking Bison.
-Don't put this file into the distribution.  Don't mention it in the
-ChangeLog.
-
-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.
-
-
-* 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...
-
-- 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, which anyway is
-  not exercised yet in the test suite.
-
-
-* 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 NEWS
-The version number, *and* the date of the release (including for
-betas).
-
-** Update ChangeLog
-Should have an entry similar to `Version 1.49b.'.
-Check all this in once `make distcheck' passes.
-
-** make alpha
-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
-Put the tarballs/xdeltas where they should be.  Or put it somewhere,
-and send the URL to [email protected].
-
-** Bump the version number
-In configure.ac.  Run `make', check this in.
-
-** Announce
-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.
-
-
------
-
-Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
-
-This file is part of GNU Bison.
-
-GNU Bison is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Bison is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Bison; see the file COPYING.  If not, write to the Free
-Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.

Makefile.am

@@ -1,37 +1,80 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
 
-## This program is free software; you can redistribute it and/or modify
+## Copyright (C) 2001-2012 Free Software Foundation, Inc.
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
 
-## This program is distributed in the hope that it will be useful,
+# This program is free software: you can redistribute it and/or modify
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+# it under the terms of the GNU General Public License as published by
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# the Free Software Foundation, either version 3 of the License, or
-## GNU General Public License for more details.
+# (at your option) any later version.
-
+#
-## You should have received a copy of the GNU General Public License
+# This program is distributed in the hope that it will be useful,
-## along with this program; if not, write to the Free Software
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## 02110-1301  USA
+# 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/>.
 
 ACLOCAL_AMFLAGS = -I m4
 
-SUBDIRS = build-aux po runtime-po lib data src doc examples tests
+SUBDIRS = build-aux po runtime-po lib data src doc examples tests etc
 
 # Files installed for use by Automake.
 aclocaldir = @aclocaldir@
 aclocal_DATA = m4/bison-i18n.m4
 
-EXTRA_DIST = GNUmakefile Makefile.cfg Makefile.maint \
+EXTRA_DIST = .prev-version .version \
-  OChangeLog PACKAGING \
+  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/fnchange.lst djgpp/testsuite.sed
 
+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) $@
 
-.PHONY: maintainer-check
+# See comments in build-aux/git-version-gen.  However, we make .version depend
-maintainer-check:
+# on configure so that .version and VERSION/PACKAGE_VERSION stay in sync in the
-	cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
+# working copy (for example, when you run autoreconf && make).  Allowing these
+# to fall out of sync appears to have little potential to improve Bison build
+# efficiency (even if we were to replace VERSION/PACKAGE_VERSION with .version
+# everywhere possible).  On the other hand, it could be harmful.  For example,
+# a developer might naively reference .version in a test case while the bison
+# executable still compiles with VERSION, and so the test case might fail or
+# pass incorrectly.
+BUILT_SOURCES = $(top_srcdir)/.version
+$(top_srcdir)/.version: configure
+	$(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

Makefile.cfg

@@ -1,48 +0,0 @@
-# Customize Makefile.maint for Bison.            -*- makefile -*-
-# Copyright (C) 2003, 2005, 2006 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 2, 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, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
-
-build_aux_dir = $(srcdir)/build-aux
-prev_version_file = $(build_aux_dir)/prev-version.txt
-announce_gen   = $(build_aux_dir)/announce-gen
-release_archive_dir = releases
-
-# Use alpha.gnu.org for alpha and beta releases.
-# Use ftp.gnu.org for major releases.
-gnu_ftp_host-alpha = alpha
-gnu_ftp_host-beta = alpha
-gnu_ftp_host-major = ftp
-gnu_rel_host = $(gnu_ftp_host-$(RELEASE_TYPE))
-
-url_dir_list = \
-  ftp://$(gnu_rel_host).gnu.org/gnu/bison
-
-# Files to update automatically.
-wget_files = \
-  $(build_aux_dir)/config.guess \
-  $(build_aux_dir)/config.sub \
-  $(build_aux_dir)/texinfo.tex \
-
-cvs_files = \
-  $(build_aux_dir)/install-sh \
-  $(build_aux_dir)/mdate-sh \
-  $(build_aux_dir)/missing \
-  $(build_aux_dir)/mkinstalldirs
-
-# Tests not to run.
-local-checks-to-skip = \
-  changelog-check

Makefile.maint

@@ -1,639 +0,0 @@
-# -*-Makefile-*-
-# This Makefile fragment is shared between the coreutils,
-# CPPI, Bison, and Autoconf.
-
-## Copyright (C) 2001-2006 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 2, 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, write to the Free Software
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-## 02110-1301, USA.
-
-# This is reported not to work with make-3.79.1
-# ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
-ME := Makefile.maint
-
-# Do not save the original name or timestamp in the .tar.gz file.
-# Use --rsyncable if available.
-gzip_rsyncable = \
-  (gzip --help|grep rsyncable) >/dev/null 2>&1 && echo --rsyncable
-GZIP_ENV = "--no-name --best `$(gzip_rsyncable)`"
-
-CVS = cvs
-
-# cvsu is part of the cvsutils package: http://www.red-bean.com/cvsutils/
-CVS_LIST = sh -c ' \
-    if test -x $(srcdir)/build-aux/cvsu; then \
-      $(srcdir)/build-aux/cvsu --find --types=AFGM $$*; \
-    else \
-      awk -F/ '\''{ \
-	  if (!$$1 && $$3 !~ /^-/) { \
-	    f=FILENAME; \
-	    sub(/CVS\/Entries/, "", f); \
-	    print f $$2; \
-	  }}'\'' \
-	$$(find $${*-*} -name Entries -print) /dev/null; \
-    fi \
-  ' dummy
-
-CVS_LIST_EXCEPT = \
-  $(CVS_LIST) | if test -f .x-$@; then grep -vEf .x-$@; else grep -v ChangeLog; fi
-
-ifeq ($(origin prev_version_file), undefined)
-  prev_version_file = .prev-version
-endif
-
-PREV_VERSION := $(shell cat $(prev_version_file))
-VERSION_REGEXP = $(subst .,\.,$(VERSION))
-
-tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
-tag-this-version = $(subst .,_,$(VERSION))
-this-cvs-tag = $(tag-package)-$(tag-this-version)
-my_distdir = $(PACKAGE)-$(VERSION)
-
-# Old releases are stored here.
-# Used for diffs and xdeltas.
-release_archive_dir ?= ../release
-
-# Prevent programs like 'sort' from considering distinct strings to be equal.
-# Doing it here saves us from having to set LC_ALL elsewhere in this file.
-export LC_ALL = C
-
-
-
-## --------------- ##
-## Sanity checks.  ##
-## --------------- ##
-
-# FIXME: add a check to prohibit definition in src/*.c of symbols defined
-# in system.h.  E.g. today I removed from tail.c a useless definition of
-# ENOSYS.  It was useless because system.h ensures it's defined.
-
-# Checks that don't require cvs.
-# Run `changelog-check' last, as previous test may reveal problems requiring
-# new ChangeLog entries.
-local-checks-available = \
-  po-check copyright-check writable-files m4-check author_mark_check \
-  changelog-check strftime-check $(syntax-check-rules) \
-  makefile_path_separator_check \
-  makefile-check
-.PHONY: $(local-checks-available)
-
-local-check = $(filter-out $(local-checks-to-skip), $(local-checks-available))
-
-.PHONY: $(syntax-check-rules)
-syntax-check-rules = \
-  sc_cast_of_argument_to_free \
-  sc_cast_of_x_alloc_return_value \
-  sc_cast_of_alloca_return_value \
-  sc_changelog \
-  sc_dd_max_sym_length \
-  sc_error_exit_success \
-  sc_file_system \
-  sc_no_if_have_config_h \
-  sc_obsolete_symbols \
-  sc_prohibit_atoi_atof \
-  sc_prohibit_jm_in_m4 \
-  sc_prohibit_assert_without_use \
-  sc_require_config_h \
-  sc_root_tests \
-  sc_space_tab \
-  sc_sun_os_names \
-  sc_system_h_headers \
-  sc_tight_scope \
-  sc_trailing_blank \
-  sc_two_space_separator_in_usage \
-  sc_unmarked_diagnostics \
-  sc_useless_cpp_parens
-
-syntax-check: $(syntax-check-rules)
-#	@grep -nE '#  *include <(limits|std(def|arg|bool))\.h>'		\
-#	    $$(find -type f -name '*.[chly]') &&			\
-#	  { echo '$(ME): found conditional include' 1>&2;		\
-#	    exit 1; } || :
-
-#	grep -nE '^#  *include <(string|stdlib)\.h>'			\
-#	    $(srcdir)/{lib,src}/*.[chy] &&				\
-#	  { echo '$(ME): FIXME' 1>&2;					\
-#	    exit 1; } || :
-# FIXME: don't allow `#include .strings\.h' anywhere
-
-sc_cast_of_argument_to_free:
-	@grep -nE '\<free \(\(' $(srcdir)/{lib,src}/*.[chly] &&		\
-	  { echo '$(ME): don'\''t cast free argument' 1>&2;		\
-	    exit 1; } || :
-
-sc_cast_of_x_alloc_return_value:
-	@grep -nE --exclude=$(srcdir)/lib/regex.c			\
-	    '\*\) *x(m|c|re)alloc\>'					\
-	    $(srcdir)/{lib,src}/*.[chy] &&				\
-	  { echo '$(ME): don'\''t cast x*alloc return value' 1>&2;	\
-	    exit 1; } || :
-
-sc_cast_of_alloca_return_value:
-	@grep -nE '\*\) *alloca\>'					\
-	    $(srcdir)/src/*.[chy] &&					\
-	  { echo '$(ME): don'\''t cast alloca return value' 1>&2;	\
-	    exit 1; } || :
-
-sc_space_tab:
-	@grep -n '[ ]	' $$($(CVS_LIST_EXCEPT)) &&			\
-	  { echo '$(ME): found SPACE-TAB sequence; remove the SPACE'	\
-		1>&2; exit 1; } || :
-
-# Don't use the old ato* functions in `real' code.
-# They provide no error checking mechanism.
-# Instead, use strto* functions.
-sc_prohibit_atoi_atof:
-	@grep -nE '\<ato([filq]|ll)\>' $$($(CVS_LIST_EXCEPT)) &&	\
-	  { echo '$(ME): do not use ato''f, ato''i, ato''l, ato''ll, or ato''q'	\
-		1>&2; exit 1; } || :
-
-# Using EXIT_SUCCESS as the first argument to error is misleading,
-# since when that parameter is 0, error does not exit.  Use `0' instead.
-sc_error_exit_success:
-	@grep -nF 'error (EXIT_SUCCESS,'					\
-	    $$(find -type f -name '*.[chly]') &&			\
-	  { echo '$(ME): found error (EXIT_SUCCESS' 1>&2;		\
-	    exit 1; } || :
-
-sc_file_system:
-	@grep -ni 'file''system' $$($(CVS_LIST_EXCEPT)) &&		\
-	  { echo '$(ME): found use of "file''system";'			\
-	    'rewrite to use "file system"' 1>&2;			\
-	    exit 1; } || :
-
-sc_no_if_have_config_h:
-	@grep -n '^# *if HAVE_CONFIG_H' $$($(CVS_LIST_EXCEPT)) &&	\
-	  { echo '$(ME): found use of #if HAVE_CONFIG_H; use #ifdef'	\
-		1>&2; exit 1; } || :
-
-# Nearly all .c files must include <config.h>.
-sc_require_config_h:
-	@grep -L '^# *include <config\.h>'				\
-		$$($(CVS_LIST_EXCEPT) | grep '\.c$$')			\
-	    | grep . &&							\
-	  { echo '$(ME): the above files do not include <config.h>'	\
-		1>&2; exit 1; } || :
-
-# Prohibit the inclusion of assert.h without an actual use of assert.
-sc_prohibit_assert_without_use:
-	@files=$$(grep -l '# *include <assert\.h>'			\
-		    $$($(CVS_LIST_EXCEPT) | grep '\.c$$')) &&		\
-	grep -L '\<assert (' $$files					\
-	    | grep . &&							\
-	  { echo "$(ME): the above files include <assert.h> but don't use it" \
-		1>&2; exit 1; } || :
-
-sc_obsolete_symbols:
-	@grep -nE '\<(HAVE''_FCNTL_H|O''_NDELAY)\>'			\
-	     $$($(CVS_LIST_EXCEPT)) &&					\
-	  { echo '$(ME): do not use HAVE''_FCNTL_H or O''_NDELAY'	\
-		1>&2; exit 1; } || :
-
-# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
-
-# Each nonempty line must start with a year number, or a TAB.
-sc_changelog:
-	@grep -n '^[^12	]' $$(find . -maxdepth 2 -name ChangeLog) &&	\
-	  { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2;	\
-	    exit 1; } || :
-
-# Ensure that dd's definition of LONGEST_SYMBOL stays in sync
-# with the strings from the two affected variables.
-dd_c = $(srcdir)/src/dd.c
-sc_dd_max_sym_length:
-ifneq ($(wildcard $(dd_c)),)
-	@len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
-		 sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) )	\
-		|sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p'		\
-	      | wc --max-line-length);				\
-	max=$$(sed -n '/^#define LONGEST_SYMBOL /s///p' $(dd_c)	\
-	      |tr -d '"' | wc --max-line-length);		\
-	if test "$$len" = "$$max"; then :; else			\
-	  echo 'dd.c: LONGEST_SYMBOL is not longest' 1>&2;	\
-	  exit 1;						\
-	fi
-endif
-
-# Many m4 macros names once began with `jm_'.
-# On 2004-04-13, they were all changed to start with gl_ instead.
-# Make sure that none are inadvertently reintroduced.
-sc_prohibit_jm_in_m4:
-	@grep -nE 'jm_[A-Z]'						\
-		$$($(CVS_LIST) $(srcdir)/m4 |grep '\.m4$$') &&		\
-	    { echo '$(ME): do not use jm_ in m4 macro names'		\
-	      1>&2; exit 1; } || :
-
-sc_root_tests:
-	@t1=sc-root.expected; t2=sc-root.actual;			\
-	grep -nl '^PRIV_CHECK_ARG=require-root'				\
-	  $$($(CVS_LIST) tests) |sed s,tests,., |sort > $$t1;		\
-	sed -n 's,	cd \([^ ]*\) .*MAKE..check TESTS=\(.*\),./\1/\2,p' \
-	  $(srcdir)/tests/Makefile.am |sort > $$t2;			\
-	diff -u $$t1 $$t2 || diff=1;					\
-	rm -f $$t1 $$t2;						\
-	test "$$diff"							\
-	  && { echo 'tests/Makefile.am: missing check-root action'>&2;	\
-	       exit 1; } || :
-
-# Create a list of regular expressions matching the names
-# of files included from system.h.  Exclude a couple.
-.re-list:
-	@sed -n '/^# *include /s///p' $(srcdir)/src/system.h \
-	  | grep -Ev 'sys/(param|file)\.h' \
-	  | sed 's/ .*//;;s/^["<]/^# *include [<"]/;s/\.h[">]$$/\\.h[">]/' \
-	  > $@-t
-	@mv $@-t $@
-
-# Files in src/ should not include directly any of
-# the headers already included via system.h.
-sc_system_h_headers: .re-list
-	@if test -f $(srcdir)/src/system.h; then			\
-	  trap 'rc=$$?; rm -f .re-list; exit $$rc' 0 1 2 3 15;		\
-	  grep -nE -f .re-list						\
-	      $$($(CVS_LIST) src |					\
-		 grep -Ev '((copy|system)\.h|parse-gram\.c)$$')		\
-	    && { echo '$(ME): the above are already included via system.h'\
-		  1>&2;  exit 1; } || :;				\
-	fi
-
-sc_sun_os_names:
-	@grep -nEi \
-	    'solaris[^[:alnum:]]*2\.(7|8|9|[1-9][0-9])|sunos[^[:alnum:]][6-9]' \
-	    $$($(CVS_LIST_EXCEPT)) &&					\
-	  { echo '$(ME): found misuse of Sun OS version numbers' 1>&2;	\
-	    exit 1; } || :
-
-sc_tight_scope:
-	$(MAKE) -C src $@
-
-sc_trailing_blank:
-	@grep -n '[	 ]$$' $$($(CVS_LIST_EXCEPT)) &&			\
-	  { echo '$(ME): found trailing blank(s)'			\
-		1>&2; exit 1; } || :
-
-sc_two_space_separator_in_usage:
-	@grep -n '^   *--[a-z][0-9A-Za-z-]* [^ ].*\\$$'			\
-	    $$($(CVS_LIST_EXCEPT)) &&					\
-	  { echo "$(ME): help2man requires at least two spaces between"; \
-	    echo "$(ME): an option and its description"; \
-		1>&2; exit 1; } || :
-
-# Look for diagnostics that aren't marked for translation.
-# This won't find any for which error's format string is on a separate line.
-sc_unmarked_diagnostics:
-	@grep -nE							\
-	    '\<error \([^"]*"[^"]*[a-z]{3}' $$($(CVS_LIST_EXCEPT))	\
-	  | grep -v '_''(' &&						\
-	  { echo '$(ME): found unmarked diagnostic(s)' 1>&2;		\
-	    exit 1; } || :
-
-# Avoid useless parentheses like those in this example:
-# #if defined (SYMBOL) || defined (SYM2)
-sc_useless_cpp_parens:
-	@grep -n '^# *if .*defined *(' $$($(CVS_LIST_EXCEPT)) &&	\
-	  { echo '$(ME): found useless parentheses in cpp directive'	\
-		1>&2; exit 1; } || :
-
-# Ensure that date's --help output stays in sync with the info
-# documentation for GNU strftime.  The only exception is %N,
-# which date accepts but GNU strftime does not.
-extract_char = sed 's/^[^%][^%]*%\(.\).*/\1/'
-strftime-check:
-	if test -f $(srcdir)/src/date.c; then				\
-	  grep '^  %.  ' $(srcdir)/src/date.c | sort			\
-	    | $(extract_char) > $@-src;					\
-	  { echo N;							\
-	    info libc date calendar format | grep '^    `%.'\'		\
-	      | $(extract_char); } | sort > $@-info;			\
-	  diff -u $@-src $@-info || exit 1;				\
-	  rm -f $@-src $@-info;						\
-	fi
-
-# Ensure that we use only the standard $(VAR) notation,
-# not @...@ in Makefile.am, now that we can rely on automake
-# to emit a definition for each substituted variable.
-makefile-check:
-	grep -nE '@[A-Z_0-9]+@' `find . -name Makefile.am` \
-	  && { echo 'Makefile.maint: use $$(...), not @...@' 1>&2; exit 1; } || :
-
-news-date-check: NEWS
-	today=`date +%Y-%m-%d`;	\
-	if head NEWS | grep '^\*.* $(VERSION_REGEXP) ('$$today')' \
-	    >/dev/null; then \
-	  :; \
-	else \
-	  echo "version or today's date is not in NEWS" 1>&2; \
-	  exit 1; \
-	fi
-
-changelog-check:
-	if head ChangeLog | grep 'Version $(VERSION_REGEXP)\.$$' \
-	    >/dev/null; then \
-	  :; \
-	else \
-	  echo "$(VERSION) not in ChangeLog" 1>&2; \
-	  exit 1; \
-	fi
-
-m4-check:
-	@grep -n 'AC_DEFUN([^[]' m4/*.m4 \
-	  && { echo 'Makefile.maint: quote the first arg to AC_DEFUN' 1>&2; \
-	       exit 1; } || :
-
-# Verify that all source files using _() are listed in po/POTFILES.in.
-# FIXME: don't hard-code file names below; use a more general mechanism.
-po-check:
-	if test -f po/POTFILES.in; then					\
-	  grep -E -v '^(#|$$)' po/POTFILES.in				\
-	    | grep -v '^src/false\.c$$' | sort > $@-1;			\
-	  files=;							\
-	  for file in $$($(CVS_LIST_EXCEPT)) lib/*.[ch]; do		\
-	    case $$file in						\
-	    djgpp/* | man/*) continue;;					\
-	    esac;							\
-	    case $$file in						\
-	    *.[ch])							\
-	      base=`expr " $$file" : ' \(.*\)\..'`;			\
-	      { test -f $$base.l || test -f $$base.y; } && continue;;	\
-	    esac;							\
-	    files="$$files $$file";					\
-	  done;								\
-	  grep -E -l '\bN?_\([^)"]*("|$$)' $$files | sort -u > $@-2;	\
-	  diff -u $@-1 $@-2 || exit 1;					\
-	  rm -f $@-1 $@-2;						\
-	fi
-
-# In a definition of #define AUTHORS "... and ..." where the RHS contains
-# the English word `and', the string must be marked with `N_ (...)' so that
-# gettext recognizes it as a string requiring translation.
-author_mark_check:
-	@grep -n '^# *define AUTHORS "[^"]* and ' src/*.c |grep -v ' N_ (' && \
-	  { echo 'Makefile.maint: enclose the above strings in N_ (...)' 1>&2; \
-	    exit 1; } || :
-
-# Sometimes it is useful to change the PATH environment variable
-# in Makefiles.  When doing so, it's better not to use the Unix-centric
-# path separator of `:', but rather the automake-provided `@PATH_SEPARATOR@'.
-# It'd be better to use `find -print0 ...|xargs -0 ...', but less portable,
-# and there probably aren't many projects with so many Makefile.am files
-# that we'd have to worry about limits on command line length.
-msg = 'Makefile.maint: Do not use `:'\'' above; use @PATH_SEPARATOR@ instead'
-makefile_path_separator_check:
-	@grep -n 'PATH=.*:' `find $(srcdir) -name Makefile.am` \
-	  && { echo $(msg) 1>&2; exit 1; } || :
-
-# Check that `make alpha' will not fail at the end of the process.
-writable-files:
-	if test -d $(release_archive_dir); then :; else			\
-	  mkdir $(release_archive_dir);					\
-	fi
-	for file in $(distdir).tar.gz $(xd-delta)			\
-	            $(release_archive_dir)/$(distdir).tar.gz		\
-	            $(release_archive_dir)/$(xd-delta); do		\
-	  test -e $$file || continue;					\
-	  test -w $$file						\
-	    || { echo ERROR: $$file is not writable; fail=1; };		\
-	done;								\
-	test "$$fail" && exit 1 || :
-
-v_etc_file = lib/version-etc.c
-# Make sure that the copyright date in $(v_etc_file) is up to date.
-copyright-check:
-	@if test -f $(v_etc_file); then \
-	  grep 'enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' $(v_etc_file) \
-	    >/dev/null \
-	  || { echo 'out of date copyright in $(v_etc_file); update it' 1>&2; \
-	       exit 1; }; \
-	fi
-
-
-# Sanity checks with the CVS repository.
-cvs-tag-check:
-	echo $(this-cvs-tag); \
-	if $(CVS) -n log -h README | grep -e $(this-cvs-tag): >/dev/null; then \
-	  echo "$(this-cvs-tag) as already been used; not tagging" 1>&2; \
-	  exit 1; \
-	else :; fi
-
-cvs-diff-check:
-	if $(CVS) diff >cvs-diffs; then				\
-	  rm cvs-diffs;						\
-	else							\
-	  echo "Some files are locally modified:" 1>&2;		\
-	  cat cvs-diffs;					\
-	  exit 1;						\
-	fi
-
-cvs-check: cvs-diff-check cvs-tag-check
-
-maintainer-distcheck: changelog-check
-	$(MAKE) distcheck
-	$(MAKE) my-distcheck
-
-
-# Tag before making distribution.  Also, don't make a distribution if
-# checks fail.  Also, make sure the NEWS file is up-to-date.
-# FIXME: use dist-hook/my-dist like distcheck-hook/my-distcheck.
-cvs-dist: $(local-check) cvs-check maintainer-distcheck
-	$(CVS) update po
-	$(CVS) tag -c $(this-cvs-tag)
-	$(MAKE) dist
-
-# Use this to make sure we don't run these programs when building
-# from a virgin tgz file, below.
-null_AM_MAKEFLAGS = \
-  ACLOCAL=false \
-  AUTOCONF=false \
-  AUTOMAKE=false \
-  AUTOHEADER=false \
-  MAKEINFO=false
-
-# Detect format-string/arg-list mismatches that would normally be obscured
-# by the use of _().  The --disable-nls effectively defines away that macro,
-# and building with CFLAGS='-Wformat -Werror' causes any format warning to be
-# treated as a failure.  Also, check for shadowing problems with -Wshadow.
-# These CFLAGS are pretty strict.  If you build this target, you probably
-# have to have a recent version of gcc and glibc headers.
-TMPDIR ?= /tmp
-t=$(TMPDIR)/$(PACKAGE)/test
-my-distcheck: $(local-check) $(release_archive_dir)/$(prev-tgz)
-	-rm -rf $(t)
-	mkdir -p $(t)
-	GZIP=$(GZIP_ENV) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
-	cd $(t)/$(distdir)				\
-	  && ./configure --disable-nls			\
-	  && $(MAKE) CFLAGS='-Werror -Wall -Wformat -Wshadow' \
-	      AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)'	\
-	  && $(MAKE) dvi				\
-	  && $(MAKE) check				\
-	  && $(MAKE) distclean
-	(cd $(t) && mv $(distdir) $(distdir).old	\
-	  && $(AMTAR) -zxf - ) < $(distdir).tar.gz
-	diff -ur $(t)/$(distdir).old $(t)/$(distdir)
-	-rm -rf $(t)
-	@echo "========================"; \
-	echo "$(distdir).tar.gz is ready for distribution"; \
-	echo "========================"
-
-WGET = wget
-WGETFLAGS = -C off
-
-rel-check:
-	tarz=/tmp/rel-check-tarz-$$$$; \
-	md5_tmp=/tmp/rel-check-md5-$$$$; \
-	set -e; \
-	trap 'status=$$?; rm -f $$tarz $$md5_tmp; exit $$status' 0 1 2 3 15; \
-	$(WGET) $(WGETFLAGS) -q --output-document=$$tarz $(url); \
-	echo "$(md5)  -" > $$md5_tmp; \
-	md5sum -c $$md5_tmp < $$tarz
-
-prev-tgz = $(PACKAGE)-$(PREV_VERSION).tar.gz
-xd-delta = $(PACKAGE)-$(PREV_VERSION)-$(VERSION).xdelta
-
-rel-files = $(xd-delta) $(DIST_ARCHIVES)
-announcement: NEWS ChangeLog $(rel-files)
-	@./announce-gen							\
-	    --release-type=$(RELEASE_TYPE)				\
-	    --package=$(PACKAGE)					\
-	    --prev=$(PREV_VERSION)					\
-	    --curr=$(VERSION)						\
-	    --release-archive-directory=$(release_archive_dir)		\
-	    --gpg-key-id=$(gpg_key_ID)					\
-	    --news=NEWS							\
-	    $(addprefix --url-dir=, $(url_dir_list))			\
-
-
-## ---------------- ##
-## Updating files.  ##
-## ---------------- ##
-
-ftp-gnu = ftp://ftp.gnu.org/gnu
-www-gnu = http://www.gnu.org
-
-# Use mv, if you don't have/want move-if-change.
-move_if_change ?= move-if-change
-
-
-# --------------------- #
-# Updating everything.  #
-# --------------------- #
-
-.PHONY: update
-local_updates ?= wget-update cvs-update po-update
-update: $(local_updates)
-
-
-# ------------------- #
-# Updating PO files.  #
-# ------------------- #
-
-po_repo = http://www.iro.umontreal.ca/contrib/po/maint/$(PACKAGE)
-.PHONY: do-po-update po-update
-do-po-update:
-	tmppo=/tmp/$(PACKAGE)-$(VERSION)-po &&\
-	rm -rf $$tmppo && \
-	mkdir $$tmppo && \
-	(cd $$tmppo && \
-	  $(WGET) $(WGETFLAGS) -r -l1 -nd --no-parent -A '*.po' $(po_repo)) &&\
-	cp $$tmppo/*.po po
-	cd po && $(MAKE) update-po
-	$(MAKE) po-check
-
-po-update:
-	if test -d "po"; then \
-	  $(MAKE) do-po-update; \
-	fi
-
-# -------------------------- #
-# Updating GNU build tools.  #
-# -------------------------- #
-
-# The following pseudo table associates a local directory and a URL
-# with each of the files that belongs to some other package and is
-# regularly updated from the specified URL.
-wget_files ?= \
-  $(srcdir)/build-aux/config.guess \
-  $(srcdir)/build-aux/config.sub \
-  $(srcdir)/build-aux/texinfo.tex \
-  $(srcdir)/src/ansi2knr.c
-
-get-targets = $(patsubst %, get-%, $(wget_files))
-
-config.guess-url_prefix = $(ftp-gnu)/build-aux/
-config.sub-url_prefix = $(ftp-gnu)/build-aux/
-
-ansi2knr.c-url_prefix = ftp://ftp.cs.wisc.edu/ghost/
-
-texinfo.tex-url_prefix = $(ftp-gnu)/texinfo/
-
-standards.texi-url_prefix = $(www-gnu)/prep/
-make-stds.texi-url_prefix = $(standards.texi-url_prefix)
-
-target = $(patsubst get-%, %, $@)
-url = $($(notdir $(target))-url_prefix)$(notdir $(target))
-
-.PHONY: $(get-targets)
-$(get-targets):
-	$(WGET) $(WGETFLAGS) $(url) -O $(target).t \
-	  && $(move_if_change) $(target).t $(target)
-
-cvs_files ?= \
-  $(srcdir)/build-aux/depcomp \
-  $(srcdir)/build-aux/install-sh \
-  $(srcdir)/build-aux/missing \
-  $(srcdir)/build-aux/mkinstalldirs \
-  $(srcdir)/src/ansi2knr.c
-automake_repo=:pserver:anoncvs:[email protected]:/cvs/automake
-.PHONY: wget-update
-wget-update: $(get-targets)
-
-.PHONY: cvs-update
-cvs-update:
-	fail=;								\
-	for f in $(cvs_files); do					\
-	  test -f $$f || { echo "*** skipping $$f" 1>&2; continue; };	\
-	  cvs diff $$f > /dev/null					\
-	    || { echo "*** $$f is locally modified; skipping it" 1>&2;	\
-		 fail=yes; continue; };					\
-	  file=$$(basename $$f);					\
-	  echo checking out $$file...;					\
-	  $(CVS) -d $(automake_repo) co -p automake/lib/$$file> $$f.t	\
-	    && $(move_if_change) $$f.t $$f;				\
-	done;								\
-	test "$$fail" && exit 1
-
-emit_upload_commands:
-	@echo =====================================
-	@echo =====================================
-	@echo "$(srcdir)/gnupload $(GNUPLOADFLAGS) \\"
-	@echo "    --to $(gnu_rel_host):coreutils \\"
-	@echo "  $(rel-files)"
-	@echo '# send the /tmp/announcement e-mail'
-	@echo =====================================
-	@echo =====================================
-
-$(xd-delta): $(release_archive_dir)/$(prev-tgz) $(distdir).tar.gz
-	xdelta delta -9 $^ $@ || :
-
-.PHONY: alpha beta major
-alpha beta major: news-date-check $(local-check)
-	$(MAKE) cvs-dist
-	$(MAKE) $(xd-delta)
-	$(MAKE) -s announcement RELEASE_TYPE=$@ > /tmp/announce-$(my_distdir)
-	ln $(rel-files) $(release_archive_dir)
-	chmod a-w $(rel-files)
-	$(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
-	echo $(VERSION) > $(prev_version_file)
-	$(CVS) ci -m. $(prev_version_file)

PACKAGING

@@ -36,21 +36,19 @@ 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.
 
-Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-Bison is distributed in the hope that it will be useful,
+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 autoconf; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

README

@@ -1,41 +1,63 @@
-This directory contains the Bison parser generator.
+This package contains the GNU Bison parser generator.
 
-See the file INSTALL for generic compilation and installation instructions.
+* Installation
-See the file doc/FAQ for frequently asked questions.
+** Build
+See the file INSTALL for generic compilation and installation
+instructions.
 
-Bison requires GNU m4 1.4.3 or later.  See:
+Bison requires GNU m4 1.4.6 or later.  See:
 
-ftp://ftp.gnu.org/gnu/m4/m4-1.4.3.tar.gz
+      ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz
 
-Bison can work with pre-1.4.3 distributions of GNU m4 if they are
+** Internationalization
-sufficiently patched, but if you encounter a bug with an older
+Bison supports two catalogues: one for Bison itself (i.e., for the
-distribution and report a bug we will probably suggest that you
+maintainer-side parser generation), and one for the generated parsers
-upgrade to 1.4.3 as the first step in trying to fix it.
+(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.
 
-Please send bug reports to <[email protected]>.  Please include the
+* Questions
-version number from `bison --version', and a complete, self-contained
+See the section FAQ in the documentation (doc/bison.info) for
-test case in each bug report.
+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".
 
 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.
+
+* 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 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.
 
-Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-Bison is distributed in the hope that it will be useful,
+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 autoconf; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

README-alpha

@@ -12,21 +12,19 @@ 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.
 
-GNU Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-GNU Bison is distributed in the hope that it will be useful,
+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 Bison; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

README-cvs

@@ -1,79 +0,0 @@
--*- outline -*-
-
-These notes intend to help people working on the CVS versions of
-Bison.
-
-* Requirements
-
-Only the sources are installed in the CVS repository (to ease the
-maintenance, merges etc.), therefore you will have to get the latest
-stable versions of the maintainer tools we depend upon, including:
-
-- Automake <http://www.gnu.org/software/automake/>
-- Autoconf <http://www.gnu.org/software/autoconf/>
-- Flex <http://www.gnu.org/software/flex/>
-- Gettext <http://www.gnu.org/software/gettext/>
-- Gzip <http://www.gnu.org/software/gzip/>
-- Tar <http://www.gnu.org/software/tar/>
-- Wget <http://www.gnu.org/software/wget/>
-
-As of this writing, the latest stable version of Gzip is 1.2.4 but we
-suggest using test version 1.3.5 (or later, if one becomes available).
-
-Valgrind <http://valgrind.org/> is also highly recommended, if
-Valgrind supports your architecture.
-
-Bison is written using Bison grammars, so there are bootstrapping
-issues.  The bootstrap script attempts to discover when the C code
-generated from the grammars is out of date, and to bootstrap with an
-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, a plain `cvs update -P && make' should be sufficient.
-
-* First CVS checkout
-
-Obviously, if you are reading these notes, you did manage to check out
-Bison from CVS.  For the records, you will find all the relevant
-information on:
-
-	http://savannah.gnu.org/cvs/?group_id=56
-
-The next step is asking the installation of all the missing files:
-
-	$ ./bootstrap
-
-And there you are!  Just
-
-	$ ./configure && make && make check
-
-At this point, there should be no difference between your local copy,
-and the CVS master copy:
-
-	$ cvs diff
-
-should output no difference.
-
-Enjoy!
-
------
-
-Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
-
-This file is part of GNU Bison.
-
-GNU Bison is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Bison is distributed in the hope that it will be useful,
-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 Bison; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

README-hacking

@@ -0,0 +1,423 @@
+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
+
+We've opted to keep only the highest-level sources in the repository.
+This eases our maintenance burden, (fewer merges etc.), but imposes more
+requirements on anyone wishing to build from the just-checked-out sources.
+For example, you have to use the latest stable versions of the maintainer
+tools we depend upon, including:
+
+- Automake <http://www.gnu.org/software/automake/>
+- Autoconf <http://www.gnu.org/software/autoconf/>
+- Flex <http://www.gnu.org/software/flex/>
+- Gettext <http://www.gnu.org/software/gettext/>
+- Gzip <http://www.gnu.org/software/gzip/>
+- Perl <http://www.cpan.org/>
+- Rsync <http://samba.anu.edu.au/rsync/>
+- Tar <http://www.gnu.org/software/tar/>
+
+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
+generated from the grammars is out of date, and to bootstrap with an
+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.  Note, however, that when gnulib is updated, running
+'./bootstrap' again might be needed.
+
+** 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/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
+
+And there you are!  Just
+
+        $ ./configure
+        $ make
+        $ make check
+
+At this point, there should be no difference between your local copy,
+and the master copy:
+
+        $ 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) 2002-2005, 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
+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/>.
+
+ 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

@@ -8,45 +8,69 @@ 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]
+Ben Pfaff                 [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]
 Bruno Haible              [email protected]
 Charles-Henri de Boysson  [email protected]
+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]
-Derek M. Jones	          [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]
 Fabrice Bauzac            [email protected]
 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
-Juan Manuel Guerrero      [email protected]
+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]
+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]
@@ -54,7 +78,9 @@ 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]
 Paul Eggert               [email protected]
 Paul Hilfinger            [email protected]
@@ -65,19 +91,31 @@ 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]
+Sebastian Setzer          [email protected]
+Sebastien Fricker         [email protected]
+Sergei Steshenko          [email protected]
 Shura                     [email protected]
-Steve Murphy		  murf@parsetree.com
+Stefano Lattarini         stefano.lattarini@gmail.com
+Steve Murphy              [email protected]
+Sum Wu                    [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]
+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]
@@ -88,3 +126,22 @@ 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

@@ -1,39 +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?
+   %printer { debug_stream() << $$; } <my_type>;
-They should not: it is not documented.  But if they need to, let's
+
-find something clean (not like YYLSP_NEEDED...).
+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:
 
-** Disable installation of yacc.
+  const unsigned short int
+  parser::yytoken_number_[] =
+  {
+       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
 
-Add an option to 'configure' that allows people to install Bison
+while here
-without installing the yacc wrapper script or the rarely-used little
-yacc library required by Posix.  This is for people who prefer some
-other implementation of yacc.
 
-* Documentation
+   enum yytokentype {
-Before releasing, make sure the documentation ("Understanding your
+     TOK_EOF = 0,
-parser") refers to the current `output' format.
+     TOK_EQ = 258,
 
-* lalr1.cc
+so both 256 and 257 are "mysterious".
-** vector
+
-Move to using vector, drop stack.hh.
+  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
@@ -56,39 +157,17 @@ Provide better assistance for understanding the conflicts by providing
 a sample text exhibiting the (LALR) ambiguity.  See the paper from
 DeRemer and Penello: they already provide the algorithm.
 
+** Statically check for potential ambiguities in GLR grammars.  See
+<http://www.i3s.unice.fr/~schmitz/papers.html#expamb> for an approach.
+
 
 * 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:
 
@@ -103,9 +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
@@ -124,13 +200,13 @@ XML output for GNU Bison
 * Unit rules
 Maybe we could expand unit rules, i.e., transform
 
-	exp: arith | bool;
+        exp: arith | bool;
-	arith: exp '+' exp;
+        arith: exp '+' exp;
-	bool: 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
@@ -146,80 +222,30 @@ 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.
-
-
-** Java
-
-There are a couple of proposed outputs:
-
-- BYACC/J
-  which is based on Byacc.
-  <http://troi.lincom-asg.com/~rjamison/byacc/>
-
-- Bison Java
-  which is based on Bison.
-  <http://www.goice.co.jp/member/mo/hack-progs/bison-java.html>
-
-Sebastien Serrurier ([email protected]) is working on this: he is
-expected to contact the authors, design the output, and implement it
-into Bison.
-
-
 * Coding system independence
 Paul notes:
 
-	Currently Bison assumes 8-bit bytes (i.e. that UCHAR_MAX is
+        Currently Bison assumes 8-bit bytes (i.e. that UCHAR_MAX is
-	255).  It also assumes that the 8-bit character encoding is
+        255).  It also assumes that the 8-bit character encoding is
-	the same for the invocation of 'bison' as it is for the
+        the same for the invocation of 'bison' as it is for the
-	invocation of 'cc', but this is not necessarily true when
+        invocation of 'cc', but this is not necessarily true when
-	people run bison on an ASCII host and then use cc on an EBCDIC
+        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
+        host.  I don't think these topics are worth our time
-	addressing (unless we find a gung-ho volunteer for EBCDIC or
+        addressing (unless we find a gung-ho volunteer for EBCDIC or
-	PDP-10 ports :-) but they should probably be documented
+        PDP-10 ports :-) but they should probably be documented
-	somewhere.
+        somewhere.
 
-	More importantly, Bison does not currently allow NUL bytes in
+        More importantly, Bison does not currently allow NUL bytes in
-	tokens, either via escapes (e.g., "x\0y") or via a NUL byte in
+        tokens, either via escapes (e.g., "x\0y") or via a NUL byte in
-	the source code.  This should get fixed.
+        the source code.  This should get fixed.
 
 * --graph
 Show reductions.
 
 * Broken options ?
-** %no-parser
 ** %token-table
 ** Skeleton strategy
-Must we keep %no-parser?  %token-table?
+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
 
@@ -228,18 +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).
 
-This will be possible with a Bison parser for the grammar, as it will
-make it much easier to extend the grammar.
-
-** 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.
@@ -268,20 +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
@@ -310,28 +310,47 @@ at the proper place to bison.simple. Ditto for YYACT_PROLOGUE.
 I was wondering what you think about adding YYACT_PROLOGUE/EPILOGUE
 to bison. If you're interested, I'll work on a patch.
 
-* Move to Graphviz
+* Better graphics
-Well, VCG seems really dead.  Move to Graphviz instead.  Also, equip
+Equip the parser with a means to create the (visual) parse tree.
-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,
+Copyright (C) 2001-2004, 2006, 2008-2012 Free Software Foundation, Inc.
-Inc.
 
 This file is part of Bison, the GNU Compiler Compiler.
 
-Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-Bison is distributed in the hope that it will be useful,
+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 Bison; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

bootstrap.conf

@@ -0,0 +1,95 @@
+# Bootstrap configuration.
+
+# 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
+# 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/>.
+
+# gnulib modules used by this package.
+gnulib_modules='
+  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
+  obstack-printf
+  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.
+XGETTEXT_OPTIONS=$XGETTEXT_OPTIONS'\\\
+ --from-code=UTF-8\\\
+ --flag=asprintf:2:c-format\\\
+ --flag=complain:1:c-format --flag=complain_at:2:c-format\\\
+ --flag=fatal:1:c-format --flag=fatal_at:2:c-format\\\
+ --flag=warn:1:c-format  --flag=warn_at:2:c-format\\\
+ --flag=unexpected_end:2:c-format\\\
+'
+XGETTEXT_OPTIONS_RUNTIME=$XGETTEXT_OPTIONS'\\\
+ --keyword=YY_ \\\
+'
+
+# Gettext supplies these files, but we don't need them since
+# we don't have an intl subdirectory.
+excluded_files='
+    m4/glibc2.m4
+    m4/intdiv0.m4
+    m4/intl.m4
+    m4/intldir.m4
+    m4/intmax.m4
+    m4/lcmessage.m4
+    m4/lock.m4
+    m4/longdouble.m4
+    m4/signed.m4
+    m4/uintmax_t.m4
+    m4/ulonglong.m4
+    m4/visibility.m4
+'
+
+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

@@ -1,13 +0,0 @@
-*.t
-Makefile
-Makefile.in
-config.guess
-config.rpath
-config.sub
-depcomp
-install-sh
-mdate-sh
-missing
-mkinstalldirs
-texinfo.tex
-ylwrap

build-aux/.gitignore

@@ -0,0 +1,28 @@
+/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
+/link-warning.h
+/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-*-
+## Copyright (C) 2006, 2009-2012 Free Software Foundation, Inc.
-EXTRA_DIST = prev-version.txt
+
+# 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/announce-gen

@@ -1,338 +0,0 @@
-#!/usr/bin/perl -w
-# Generate an announcement message.
-use strict;
-
-use Getopt::Long;
-use Digest::MD5;
-use Digest::SHA1;
-
-(my $VERSION = '$Revision$ ') =~ tr/[0-9].//cd;
-(my $ME = $0) =~ s|.*/||;
-
-my %valid_release_types = map {$_ => 1} qw (alpha beta major);
-
-END
-{
-  # Nobody ever checks the status of print()s.  That's okay, because
-  # if any do fail, we're guaranteed to get an indicator when we close()
-  # the filehandle.
-  #
-  # Close stdout now, and if there were no errors, return happy status.
-  # If stdout has already been closed by the script, though, do nothing.
-  defined fileno STDOUT
-    or return;
-  close STDOUT
-    and return;
-
-  # Errors closing stdout.  Indicate that, and hope stderr is OK.
-  warn "$ME: closing standard output: $!\n";
-
-  # Don't be so arrogant as to assume that we're the first END handler
-  # defined, and thus the last one invoked.  There may be others yet
-  # to come.  $? will be passed on to them, and to the final _exit().
-  #
-  # If it isn't already an error, make it one (and if it _is_ an error,
-  # preserve the value: it might be important).
-  $? ||= 1;
-}
-
-sub usage ($)
-{
-  my ($exit_code) = @_;
-  my $STREAM = ($exit_code == 0 ? *STDOUT : *STDERR);
-  if ($exit_code != 0)
-    {
-      print $STREAM "Try `$ME --help' for more information.\n";
-    }
-  else
-    {
-      my @types = sort keys %valid_release_types;
-      print $STREAM <<EOF;
-Usage: $ME [OPTIONS]
-
-OPTIONS:
-
-  Generate an announcement message.
-
-  FIXME: describe the following
-
-   --release-type=TYPE          TYPE must be one of @types
-   --package-name=PACKAGE_NAME
-   --previous-version=VER
-   --current-version=VER
-   --release-archive-directory=DIR
-   --url-directory=URL_DIR
-   --news=NEWS_FILE             optional
-
-   --help             display this help and exit
-   --version          output version information and exit
-
-EOF
-    }
-  exit $exit_code;
-}
-
-sub print_changelog_deltas ($$)
-{
-  my ($package_name, $prev_version) = @_;
-
-  # Print new ChangeLog entries.
-
-  # First find all CVS-controlled ChangeLog files.
-  use File::Find;
-  my @changelog;
-  find ({wanted => sub {$_ eq 'ChangeLog' && -d 'CVS'
-			  and push @changelog, $File::Find::name}},
-	'.');
-
-  # If there are no ChangeLog files, we're done.
-  @changelog
-    or return;
-  my %changelog = map {$_ => 1} @changelog;
-
-  # Reorder the list of files so that if there are ChangeLog
-  # files in the specified directories, they're listed first,
-  # in this order:
-  my @dir = qw ( . src lib m4 config doc );
-
-  # A typical @changelog array might look like this:
-  # ./ChangeLog
-  # ./po/ChangeLog
-  # ./m4/ChangeLog
-  # ./lib/ChangeLog
-  # ./doc/ChangeLog
-  # ./config/ChangeLog
-  my @reordered;
-  foreach my $d (@dir)
-    {
-      my $dot_slash = $d eq '.' ? $d : "./$d";
-      my $target = "$dot_slash/ChangeLog";
-      delete $changelog{$target}
-	and push @reordered, $target;
-    }
-
-  # Append any remaining ChangeLog files.
-  push @reordered, sort keys %changelog;
-
-  # Remove leading `./'.
-  @reordered = map { s!^\./!!; $_ } @reordered;
-
-  print "\nChangeLog entries:\n\n";
-  # print join ("\n", @reordered), "\n";
-
-  $prev_version =~ s/\./_/g;
-  my $prev_cvs_tag = "\U$package_name\E-$prev_version";
-
-  my $cmd = "cvs -n diff -u -r$prev_cvs_tag -rHEAD @reordered";
-  open DIFF, '-|', $cmd
-    or die "$ME: cannot run `$cmd': $!\n";
-  # Print two types of lines, making minor changes:
-  # Lines starting with `+++ ', e.g.,
-  # +++ ChangeLog   22 Feb 2003 16:52:51 -0000      1.247
-  # and those starting with `+'.
-  # Don't print the others.
-  my $prev_printed_line_empty = 1;
-  while (defined (my $line = <DIFF>))
-    {
-      if ($line =~ /^\+\+\+ /)
-	{
-	  my $separator = "*"x70 ."\n";
-	  $line =~ s///;
-	  $line =~ s/\s.*//;
-	  $prev_printed_line_empty
-	    or print "\n";
-	  print $separator, $line, $separator;
-	}
-      elsif ($line =~ /^\+/)
-	{
-	  $line =~ s///;
-	  print $line;
-	  $prev_printed_line_empty = ($line =~ /^$/);
-	}
-    }
-  close DIFF;
-
-  # The exit code should be 1.
-  # Allow in case there are no modified ChangeLog entries.
-  $? == 256 || $? == 128
-    or warn "$ME: warning: `cmd' had unexpected exit code or signal ($?)\n";
-}
-
-{
-  my $release_type;
-  my $package_name;
-  my $prev_version;
-  my $curr_version;
-  my $release_archive_dir;
-  my @url_dir_list;
-  my $news_file;
-
-  GetOptions
-    (
-     'release-type=s' => \$release_type,
-     'package-name=s' => \$package_name,
-     'previous-version=s' => \$prev_version,
-     'current-version=s' => \$curr_version,
-     'release-archive-directory=s' => \$release_archive_dir,
-     'url-directory=s@' => \@url_dir_list,
-     'news=s@' => \$news_file,
-
-     help => sub { usage 0 },
-     version => sub { print "$ME version $VERSION\n"; exit },
-    ) or usage 1;
-
-  my $fail = 0;
-  # Ensure that sure each required option is specified.
-  $release_type
-    or (warn "$ME: release type not specified\n"), $fail = 1;
-  $package_name
-    or (warn "$ME: package name not specified\n"), $fail = 1;
-  $prev_version
-    or (warn "$ME: previous version string not specified\n"), $fail = 1;
-  $curr_version
-    or (warn "$ME: current version string not specified\n"), $fail = 1;
-  $release_archive_dir
-    or (warn "$ME: release directory name not specified\n"), $fail = 1;
-  @url_dir_list
-    or (warn "$ME: URL directory name(s) not specified\n"), $fail = 1;
-
-  exists $valid_release_types{$release_type}
-    or (warn "$ME: `$release_type': invalid release type\n"), $fail = 1;
-
-  @ARGV
-    and (warn "$ME: too many arguments\n"), $fail = 1;
-  $fail
-    and usage 1;
-
-  my $my_distdir = "$package_name-$curr_version";
-  my $tgz = "$my_distdir.tar.gz";
-  my $tbz = "$my_distdir.tar.bz2";
-  my $xd = "$package_name-$prev_version-$curr_version.xdelta";
-
-  my %size;
-
-  foreach my $f (($tgz, $tbz, $xd))
-    {
-      my $cmd = "du --human $f";
-      my $t = `$cmd`;
-      # FIXME-someday: give a better diagnostic, a la $PROCESS_STATUS
-      $@
-	and (warn "$ME: command failed: `$cmd'\n"), $fail = 1;
-      chomp $t;
-      $t =~ s/^([\d.]+[MkK]).*/${1}B/;
-      $size{$f} = $t;
-    }
-
-  $fail
-    and exit 1;
-
-  # The markup is escaped as <\# so that when this script is sent by
-  # mail (or part of a diff), Gnus is not triggered.
-  print <<EOF;
-
-Subject: $my_distdir released
-
-<\#secure method=pgpmime mode=sign>
-
-FIXME: put comments here
-
-EOF
-
-  print "Here are the compressed sources:\n";
-  foreach my $url (@url_dir_list)
-    {
-      print "  $url/$tgz   ($size{$tgz})\n";
-      print "  $url/$tbz  ($size{$tbz})\n";
-    }
-
-  print "\nAnd here are xdelta-style diffs:\n";
-  foreach my $url (@url_dir_list)
-    {
-      print "  $url/$xd   ($size{$xd})\n";
-    }
-
-  print "\nHere are GPG detached signatures:\n";
-  foreach my $url (@url_dir_list)
-    {
-      print "  $url/$tgz.asc\n";
-      print "  $url/$tbz.asc\n";
-    }
-
-  # FIXME: clean up upon interrupt or die
-  my $tmpdir = $ENV{TMPDIR} || '/tmp';
-  my $tmp = "$tmpdir/$ME-$$";
-  unlink $tmp;  # ignore failure
-
-  print "\nHere are the MD5 and SHA1 signatures:\n";
-  print "\n";
-  # The markup is escaped as <\# so that when this script is sent by
-  # mail (or part of a diff), Gnus is not triggered.
-  print "<\#part type=text/plain filename=\"$tmp\" disposition=inline>\n"
-    . "<\#/part>\n";
-
-  open OUT, '>', $tmp
-    or die "$ME: $tmp: cannot open for writing: $!\n";
-
-  foreach my $meth (qw (md5 sha1))
-    {
-      foreach my $f (($tgz, $tbz, $xd))
-	{
-	  open IN, '<', $f
-	    or die "$ME: $f: cannot open for reading: $!\n";
-	  binmode IN;
-	  my $dig =
-	    ($meth eq 'md5'
-	     ? Digest::MD5->new->addfile(*IN)->hexdigest
-	     : Digest::SHA1->new->addfile(*IN)->hexdigest);
-	  close IN;
-	  print OUT "$dig  $f\n";
-	}
-    }
-
-  close OUT
-    or die "$ME: $tmp: while writing: $!\n";
-  chmod 0400, $tmp;  # ignore failure
-
-  if ($news_file)
-    {
-      print "\nNEWS\n\n";
-
-      # Print all lines from $news_file, starting with the first one
-      # that mentions $curr_version up to but not including
-      # the first occurrence of $prev_version.
-      my $in_items;
-      open NEWS, '<', $news_file
-	or die "$ME: $news_file: cannot open for reading: $!\n";
-      while (defined (my $line = <NEWS>))
-	{
-	  if ( ! $in_items)
-	    {
-	      # Match lines like this one:
-	      # * Major changes in release 5.0.1:
-	      # but not any other line that starts with a space, *, or -.
-	      $line =~ /^(\* Major changes.*|[^ *-].*)\Q$curr_version\E/o
-		or next;
-	      $in_items = 1;
-	      print $line;
-	    }
-	  else
-	    {
-	      # Be careful that this regexp cannot match version numbers
-	      # in NEWS items -- they might well say `introduced in 4.5.5',
-	      # and we don't want that to match.
-	      $line =~ /^(\* Major changes.*|[^ *-].*)\Q$prev_version\E/o
-		and last;
-	      print $line;
-	    }
-	}
-      close NEWS;
-
-      $in_items
-	or die "$ME: $news_file: no matching lines for `$curr_version'\n";
-    }
-
-  $release_type eq 'major'
-    or print_changelog_deltas ($package_name, $prev_version);
-
-  exit 0;
-}

build-aux/cross-options.pl

@@ -0,0 +1,79 @@
+#! /usr/bin/env perl
+
+use warnings;
+use 5.005;
+use strict;
+
+my %option;
+my %directive;
+my $scanner = `grep -i '"%[a-z]' $ARGV[0]`;
+$scanner =~ s/"\[-_\]"/-/g;
+while (<STDIN>)
+{
+    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 = '' 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/^=//;
+            $arg = lc ($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)
+{
+    # 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

@@ -0,0 +1,79 @@
+# Customize maint.mk                           -*- makefile -*-
+# 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
+# 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/>.
+
+# 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*
+# targets are filtered out.
+_is-dist-target = $(filter-out %clean maintainer-check% maintainer-%-check, \
+  $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS)))
+
+url_dir_list = \
+  ftp://$(gnu_rel_host)/gnu/bison
+
+# Tests not to run as part of "make distcheck".
+# 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 \
+  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
+
+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_magic_number_exit=^doc/bison.texi$$				\
+  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$	\
+  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

@@ -1,11 +1,10 @@
 # Configure template for GNU Bison.                   -*-Autoconf-*-
 #
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Copyright (C) 2001-2012 Free Software Foundation, Inc.
-# Foundation, Inc.
 #
-# This program is free software; you can redistribute it and/or modify
+# 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 2 of the License, or
+# 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,
@@ -14,55 +13,91 @@
 # 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
 
-# We use macros like AC_CHECK_HEADERS_ONCE, so we need Autoconf 2.60 or better.
+# In order for some versions of Sun Studio to compile our C++ test cases
-AC_PREREQ(2.60)
+# 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_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012])
+AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR],
+                   [The copyright year for this package])
 
-AC_INIT([GNU Bison], [2.3a], [[email protected]])
 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.
+# Automake 1.10.3 and 1.11.1 fix a security flaw discussed here:
-AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2])
+#
-AC_CONFIG_HEADERS([config.h:config.hin])
+#   http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131
-
+#
-gl_USE_SYSTEM_EXTENSIONS
+# 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
+AC_PROG_CC_STDC
-AM_PROG_CC_STDC
+AC_PROG_CXX
-AC_ARG_ENABLE(gcc-warnings,
+
+# Gnulib (early checks).
+gl_EARLY
+
+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: $enable_gcc_warnings]);;
  esac],
-              [enableval=no])
+              [enable_gcc_warnings=no])
-if test "${enableval}" = yes; then
+if test "$enable_gcc_warnings" = yes; then
-  gl_WARNING_CFLAGS([-Werror])
+  warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align
-  AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
+    -Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings'
-  WARNING_CFLAGS=
+  warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes
-  gl_WARNING_CFLAGS([-Wextra -Wno-sign-compare])
+    -Wshadow -Wstrict-prototypes'
-  gl_WARNING_CFLAGS([-Wall])
+  warn_cxx='-Wnoexcept'
-  gl_WARNING_CFLAGS([-Wcast-align])
+  AC_LANG_PUSH([C])
-  gl_WARNING_CFLAGS([-Wcast-qual])
+  for i in $warn_common $warn_c;
-  gl_WARNING_CFLAGS([-Wformat])
+  do
-  gl_WARNING_CFLAGS([-Wpointer-arith])
+    gl_WARN_ADD([$i], [WARN_CFLAGS])
-  gl_WARNING_CFLAGS([-Wwrite-strings])
+  done
-  AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
+  gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
-  # The following warnings are not suitable for C++.
+  # Warnings for the test suite only.
-  gl_WARNING_CFLAGS([-Wbad-function-cast])
+  gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST])
-  gl_WARNING_CFLAGS([-Wmissing-declarations])
+  gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST])
-  gl_WARNING_CFLAGS([-Wmissing-prototypes])
+  AC_LANG_POP([C])
-  gl_WARNING_CFLAGS([-Wshadow])
+
-  gl_WARNING_CFLAGS([-Wstrict-prototypes])
+  AC_LANG_PUSH([C++])
-  AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
+  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],
@@ -81,31 +116,37 @@ AC_SUBST([YACC_LIBRARY])
 
 # Checks for programs.
 AC_PROG_LEX
+$LEX_IS_FLEX || AC_MSG_ERROR([Flex is required])
 AC_PROG_YACC
 AC_PROG_RANLIB
-BISON_PROG_GNU_M4
+AC_PROG_GNU_M4
-if test x"$ac_cv_prog_gnu_m4" != xyes; then
-  AC_MSG_ERROR([GNU M4 1.4 is required])
-fi
 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])
 
 # Checks for header files.
 AC_CHECK_HEADERS_ONCE([locale.h])
-AM_STDBOOL_H
 
 # Checks for compiler characteristics.
 AC_C_INLINE
 
+# Gnulib (later checks).  Putting them here rather than right after
+# gl_EARLY avoids some redundant checks.
+gl_INIT
+
 # Checks for library functions.
 AC_CHECK_FUNCS_ONCE([setlocale])
 AM_WITH_DMALLOC
-BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
-# gnulib and gettext.
+# Gettext.
-GNULIB_AUTOCONF_SNIPPET
+# We use gnulib, which is only guaranteed to work properly with the
-# We've never tested with gettext versions before 0.15, so play it safe.
+# latest Gettext.
-AM_GNU_GETTEXT_VERSION([0.15])
+AM_GNU_GETTEXT([external], [need-ngettext])
+AM_GNU_GETTEXT_VERSION([0.18])
 BISON_I18N
 
 # Internationalized parsers.
@@ -114,26 +155,39 @@ AC_CONFIG_FILES([runtime-po/Makefile.in])
 aclocaldir='${datadir}/aclocal'
 AC_SUBST([aclocaldir])
 
+# Create the benchmark script.
+AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl])
+
 # Initialize the test suite.
 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
+case $VALGRIND:$host_os in
-BISON_TEST_FOR_WORKING_CXX_COMPILER
+  '':*) ;;
+  *: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])
-O0CFLAGS=`echo $CFLAGS | sed 's/-O[[0-9]] *//'`
+
-AC_SUBST([O0CFLAGS])
+gt_JAVACOMP([1.3])
-O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[[0-9]] *//'`
+gt_JAVAEXEC
-AC_SUBST([O0CXXFLAGS])
 
 AC_CONFIG_FILES([Makefile
-                 build-aux/Makefile
+		 build-aux/Makefile
-                 po/Makefile.in
+		 po/Makefile.in
-                 data/Makefile
+		 data/Makefile
+		 etc/Makefile
 		 examples/Makefile
 		    examples/calc++/Makefile
-                 lib/Makefile src/Makefile doc/Makefile])
+		 lib/Makefile src/Makefile
+		 doc/Makefile
+		   doc/yacc.1])
 AC_OUTPUT

data/.gitignore

@@ -0,0 +1,2 @@
+/Makefile.in
+/Makefile

data/Makefile.am

@@ -1,23 +1,30 @@
-## Copyright (C) 2002, 2005 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
+# 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
+# it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
-## (at your option) any later version.
+# (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/>.
 
-## This program is distributed in the hope that it will be useful,
+dist_pkgdata_DATA = README bison.m4 \
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+   c-like.m4 \
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   c-skel.m4 c.m4 yacc.c glr.c \
-## GNU General Public License for more details.
+   c++-skel.m4 c++.m4 location.cc lalr1.cc glr.cc stack.hh \
-
+   java-skel.m4 java.m4 lalr1.java
-## You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-## 02110-1301  USA
-
-dist_pkgdata_DATA = README \
-   c.m4 yacc.c glr.c \
-   c++.m4 location.cc lalr1.cc glr.cc
 
 m4sugardir = $(pkgdatadir)/m4sugar
-dist_m4sugar_DATA = m4sugar/m4sugar.m4
+dist_m4sugar_DATA = m4sugar/m4sugar.m4 m4sugar/foreach.m4
+
+xsltdir = $(pkgdatadir)/xslt
+dist_xslt_DATA =				\
+   xslt/bison.xsl				\
+   xslt/xml2dot.xsl				\
+   xslt/xml2text.xsl				\
+   xslt/xml2xhtml.xsl

data/README

@@ -1,45 +1,70 @@
 -*- outline -*-
 
-This directory contains Bison skeletons: the general shapes of the
+This directory contains data needed by Bison.
-different parser kinds, that are specialized for specific grammars by
-the bison program.
 
-Currently, there are only three supported skeletons:
+* Skeletons
+Bison skeletons: the general shapes of the different parser kinds,
+that are specialized for specific grammars by the bison program.
+
+Currently, the supported skeletons are:
 
 - yacc.c
   It used to be named bison.simple: it corresponds to C Yacc
   compatible LALR(1) parsers.
 
 - lalr1.cc
-  Produces a C++ parser class.  It is still very experimental, and not
+  Produces a C++ parser class.
-  yet supported.  Please, subscribe to [email protected].
+
+- lalr1.java
+  Produces a Java parser class.
 
 - glr.c
   A Generalized LR C parser based on Bison's LALR(1) tables.
 
+- glr.cc
+  A Generalized LR C++ parser.  Actually a C++ wrapper around glr.c.
+
 These skeletons are the only ones supported by the Bison team.
 Because the interface between skeletons and the bison program is not
 finished, *we are not bound to it*.  In particular, Bison is not
 mature enough for us to consider that ``foreign skeletons'' are
 supported.
 
+* m4sugar
+This directory contains M4sugar, sort of an extended library for M4,
+which is used by Bison to instantiate the skeletons.
+
+* xslt
+This directory contains XSLT programs that transform Bison's XML output
+into various formats.
+
+- bison.xsl
+  A library of routines used by the other XSLT programs.
+
+- xml2dot.xsl
+  Conversion into GraphViz's dot format.
+
+- xml2text.xsl
+  Conversion into text.
+
+- xml2xhtml.xsl
+  Conversion into XHTML.
+
 -----
 
-Copyright (C) 2002 Free Software Foundation, Inc.
+Copyright (C) 2002, 2008-2012 Free Software Foundation, Inc.
 
 This file is part of GNU Bison.
 
-GNU Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-GNU Bison is distributed in the hope that it will be useful,
+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 Bison; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.

data/bison.m4

@@ -0,0 +1,586 @@
+                                                            -*- Autoconf -*-
+
+# Language-independent M4 Macros for Bison.
+
+# 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
+# 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/>.
+
+
+## ---------------- ##
+## Identification.  ##
+## ---------------- ##
+
+# b4_copyright(TITLE, YEARS)
+# --------------------------
+m4_define([b4_copyright],
+[b4_comment([A Bison parser, made by GNU Bison b4_version.])
+
+b4_comment([$1
+
+m4_text_wrap([Copyright (C) $2 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/>.])
+
+b4_comment([As a special exception, you may create a larger work that contains
+part or all of the Bison parser skeleton and distribute that work
+under terms of your choice, so long as that work isn't itself a
+parser generator using the skeleton or a modified version thereof
+as a parser skeleton.  Alternatively, if you modify or redistribute
+the parser skeleton itself, you may (at your option) remove this
+special exception, which will cause the skeleton and the resulting
+Bison output files to be licensed under the GNU General Public
+License without this special exception.
+
+This special exception was added by the Free Software Foundation in
+version 2.2 of Bison.])])
+
+
+## ---------------- ##
+## Error handling.  ##
+## ---------------- ##
+
+# The following error handling macros print error directives that should not
+# become arguments of other macro invocations since they would likely then be
+# mangled.  Thus, they print to stdout directly.
+
+# b4_cat(TEXT)
+# ------------
+# Write TEXT to stdout.  Precede the final newline with an @ so that it's
+# escaped.  For example:
+#
+#   b4_cat([[@complain(invalid input@)]])
+m4_define([b4_cat],
+[m4_syscmd([cat <<'_m4eof'
+]m4_bpatsubst(m4_dquote($1), [_m4eof], [_m4@`eof])[@
+_m4eof
+])dnl
+m4_if(m4_sysval, [0], [], [m4_fatal([$0: cannot write to stdout])])])
+
+# b4_error(KIND, FORMAT, [ARG1], [ARG2], ...)
+# -------------------------------------------
+# Write @KIND(FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# For example:
+#
+#   b4_error([[warn]], [[invalid value for '%s': %s]], [[foo]], [[3]])
+m4_define([b4_error],
+[b4_cat([[@]$1[(]$2[]]dnl
+[m4_if([$#], [2], [],
+       [m4_foreach([b4_arg],
+                   m4_dquote(m4_shift(m4_shift($@))),
+                   [[@,]b4_arg])])[@)]])])
+
+# b4_error_at(KIND, START, END, FORMAT, [ARG1], [ARG2], ...)
+# ----------------------------------------------------------
+# Write @KIND_at(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# For example:
+#
+#   b4_error_at([[complain]], [[input.y:2.3]], [[input.y:5.4]],
+#               [[invalid %s]], [[foo]])
+m4_define([b4_error_at],
+[b4_cat([[@]$1[_at(]$2[@,]$3[@,]$4[]]dnl
+[m4_if([$#], [4], [],
+       [m4_foreach([b4_arg],
+                   m4_dquote(m4_shift(m4_shift(m4_shift(m4_shift($@))))),
+                   [[@,]b4_arg])])[@)]])])
+
+# b4_warn(FORMAT, [ARG1], [ARG2], ...)
+# ------------------------------------
+# Write @warn(FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# For example:
+#
+#   b4_warn([[invalid value for '%s': %s]], [[foo]], [[3]])
+#
+# As a simple test suite, this:
+#
+#   m4_divert(-1)
+#   m4_define([asdf], [ASDF])
+#   m4_define([fsa], [FSA])
+#   m4_define([fdsa], [FDSA])
+#   b4_warn([[[asdf), asdf]]], [[[fsa), fsa]]], [[[fdsa), fdsa]]])
+#   b4_warn([[asdf), asdf]], [[fsa), fsa]], [[fdsa), fdsa]])
+#   b4_warn()
+#   b4_warn(1)
+#   b4_warn(1, 2)
+#
+# Should produce this without newlines:
+#
+#   @warn([asdf), asdf]@,[fsa), fsa]@,[fdsa), fdsa]@)
+#   @warn(asdf), asdf@,fsa), fsa@,fdsa), fdsa@)
+#   @warn(@)
+#   @warn(1@)
+#   @warn(1@,2@)
+m4_define([b4_warn],
+[b4_error([[warn]], $@)])
+
+# b4_warn_at(START, END, FORMAT, [ARG1], [ARG2], ...)
+# ---------------------------------------------------
+# Write @warn(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# For example:
+#
+#   b4_warn_at([[input.y:2.3]], [[input.y:5.4]], [[invalid %s]], [[foo]])
+m4_define([b4_warn_at],
+[b4_error_at([[warn]], $@)])
+
+# b4_complain(FORMAT, [ARG1], [ARG2], ...)
+# ----------------------------------------
+# Write @complain(FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# See b4_warn example.
+m4_define([b4_complain],
+[b4_error([[complain]], $@)])
+
+# b4_complain_at(START, END, FORMAT, [ARG1], [ARG2], ...)
+# -------------------------------------------------------
+# Write @complain(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout.
+#
+# See b4_warn_at example.
+m4_define([b4_complain_at],
+[b4_error_at([[complain]], $@)])
+
+# b4_fatal(FORMAT, [ARG1], [ARG2], ...)
+# -------------------------------------
+# Write @fatal(FORMAT@,ARG1@,ARG2@,...@) to stdout and exit.
+#
+# See b4_warn example.
+m4_define([b4_fatal],
+[b4_error([[fatal]], $@)dnl
+m4_exit(1)])
+
+# b4_fatal_at(START, END, FORMAT, [ARG1], [ARG2], ...)
+# ----------------------------------------------------
+# Write @fatal(START@,END@,FORMAT@,ARG1@,ARG2@,...@) to stdout and exit.
+#
+# See b4_warn_at example.
+m4_define([b4_fatal_at],
+[b4_error_at([[fatal]], $@)dnl
+m4_exit(1)])
+
+
+## ------------ ##
+## Data Types.  ##
+## ------------ ##
+
+# b4_ints_in(INT1, INT2, LOW, HIGH)
+# ---------------------------------
+# Return 1 iff both INT1 and INT2 are in [LOW, HIGH], 0 otherwise.
+m4_define([b4_ints_in],
+[m4_eval([$3 <= $1 && $1 <= $4 && $3 <= $2 && $2 <= $4])])
+
+
+
+## ------------------ ##
+## Decoding options.  ##
+## ------------------ ##
+
+# b4_flag_if(FLAG, IF-TRUE, IF-FALSE)
+# -----------------------------------
+# Run IF-TRUE if b4_FLAG_flag is 1, IF-FALSE if FLAG is 0, otherwise fail.
+m4_define([b4_flag_if],
+[m4_case(b4_$1_flag,
+         [0], [$3],
+	 [1], [$2],
+	 [m4_fatal([invalid $1 value: ]$1)])])
+
+
+# b4_define_flag_if(FLAG)
+# -----------------------
+# Define "b4_FLAG_if(IF-TRUE, IF-FALSE)" that depends on the
+# value of the Boolean FLAG.
+m4_define([b4_define_flag_if],
+[_b4_define_flag_if($[1], $[2], [$1])])
+
+# _b4_define_flag_if($1, $2, FLAG)
+# --------------------------------
+# 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
+m4_define([b4_$3_if],
+          [b4_flag_if([$3], [$1], [$2])])])
+
+
+# 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([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])])
+
+
+
+## ----------- ##
+## Synclines.  ##
+## ----------- ##
+
+# b4_basename(NAME)
+# -----------------
+# Similar to POSIX basename; the differences don't matter here.
+# Beware that NAME is not evaluated.
+m4_define([b4_basename],
+[m4_bpatsubst([$1], [^.*/\([^/]+\)/*$], [\1])])
+
+
+# b4_syncline(LINE, FILE)
+# -----------------------
+m4_define([b4_syncline],
+[b4_flag_if([synclines],
+[b4_sync_end([__line__], [b4_basename(m4_quote(__file__))])
+b4_sync_start([$1], [$2])])])
+
+m4_define([b4_sync_end], [b4_comment([Line $1 of $2])])
+m4_define([b4_sync_start], [b4_comment([Line $1 of $2])])
+
+# b4_user_code(USER-CODE)
+# -----------------------
+# Emit code from the user, ending it with synclines.
+m4_define([b4_user_code],
+[$1
+b4_syncline([@oline@], [@ofile@])])
+
+
+# b4_define_user_code(MACRO)
+# --------------------------
+# From b4_MACRO, build b4_user_MACRO that includes the synclines.
+m4_define([b4_define_user_code],
+[m4_define([b4_user_$1],
+[b4_user_code([b4_$1])])])
+
+
+# b4_user_actions
+# b4_user_initial_action
+# b4_user_post_prologue
+# b4_user_pre_prologue
+# b4_user_stype
+# ----------------------
+# Macros that issue user code, ending with synclines.
+b4_define_user_code([actions])
+b4_define_user_code([initial_action])
+b4_define_user_code([post_prologue])
+b4_define_user_code([pre_prologue])
+b4_define_user_code([stype])
+
+
+# b4_check_user_names(WHAT, USER-LIST, 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 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.
+#
+# For example, to define b4_foo_user_names to be used for USER-LIST with three
+# name occurrences and with correct quoting:
+#
+#   m4_define([b4_foo_user_names],
+#             [[[[[[bar]], [[parser.y:1.7]], [[parser.y:1.16]]]],
+#               [[[[bar]], [[parser.y:5.7]], [[parser.y:5.16]]]],
+#               [[[[baz]], [[parser.y:8.7]], [[parser.y:8.16]]]]]])
+#
+# The macro BISON-NAMESPACE(bar) must be defined iff the name bar of type WHAT
+# is used by Bison (in the front-end or in the skeleton).  Empty string names
+# are fine, but it would be ugly for Bison to actually use one.
+#
+# For example, to use b4_foo_bison_names for BISON-NAMESPACE and define that
+# the names bar and baz are used by Bison:
+#
+#   m4_define([b4_foo_bison_names(bar)])
+#   m4_define([b4_foo_bison_names(baz)])
+#
+# To invoke b4_check_user_names with TYPE foo, with USER-LIST
+# b4_foo_user_names, with BISON-NAMESPACE b4_foo_bison_names, and with correct
+# quoting:
+#
+#   b4_check_user_names([[foo]], [b4_foo_user_names],
+#                       [[b4_foo_bison_names]])
+m4_define([b4_check_user_names],
+[m4_foreach([b4_occurrence], $2,
+[m4_pushdef([b4_occurrence], b4_occurrence)dnl
+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_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_*.  ##
+## --------------------- ##
+
+
+# b4_percent_define_use(VARIABLE)
+# -------------------------------
+# 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).
+#
+# For example:
+#
+#   b4_percent_define_get([[foo]])
+m4_define([b4_percent_define_get],
+[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,
+# 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
+# b4_fatal_at.  Don't record this as a Bison usage of VARIABLE as there's no
+# reason to suspect that the user-supplied value has yet influenced the output.
+#
+# For example:
+#
+#   b4_complain_at(b4_percent_define_get_loc([[foo]]), [[invalid foo]])
+m4_define([b4_percent_define_get_loc],
+[m4_ifdef([b4_percent_define_loc(]$1[)],
+          [m4_pushdef([b4_loc], m4_indir([b4_percent_define_loc(]$1[)]))dnl
+b4_loc[]dnl
+m4_popdef([b4_loc])],
+          [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.
+# 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
+# VARIABLE as there's no reason to suspect that the user-supplied value has yet
+# influenced the output.
+#
+# For example:
+#
+#   b4_percent_define_get_syncline([[foo]])
+m4_define([b4_percent_define_get_syncline],
+[m4_ifdef([b4_percent_define_syncline(]$1[)],
+          [m4_indir([b4_percent_define_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,
+# 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).
+#
+# For example:
+#
+#   b4_percent_define_ifdef([[foo]], [[it's defined]], [[it's undefined]])
+m4_define([b4_percent_define_ifdef],
+[m4_ifdef([b4_percent_define(]$1[)],
+	  [m4_define([b4_percent_define_bison_variables(]$1[)])$2],
+	  [$3])])
+
+# b4_percent_define_flag_if(VARIABLE, IF-TRUE, [IF-FALSE])
+# --------------------------------------------------------
+# 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
+# already) or defined to any other value (possibly a user error).  Also, record
+# Bison's usage of VARIABLE by defining
+# b4_percent_define_bison_variables(VARIABLE).
+#
+# For example:
+#
+#   b4_percent_define_flag_if([[foo]], [[it's true]], [[it's false]])
+m4_define([b4_percent_define_flag_if],
+[b4_percent_define_ifdef([$1],
+  [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']],
+                                           [$1])],
+                           [[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,
+# 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.
+#
+# For example:
+#
+#   b4_percent_define_default([[foo]], [[default value]])
+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[)],
+                      [[[[<skeleton default value>:-1.-1]],
+                        [[<skeleton default value>:-1.-1]]]])dnl
+            m4_define([b4_percent_define_syncline(]$1[)], [[]])])])
+
+# b4_percent_define_check_values(VALUES)
+# --------------------------------------
+# Mimic muscle_percent_define_check_values in ../src/muscle-tab.h exactly
+# except that the VALUES structure is more appropriate for M4.  That is, VALUES
+# is a list of sublists of strings.  For each sublist, the first string is the
+# name of a %define variable, and all remaining strings in that sublist are the
+# valid values for that variable.  Complain if such a variable is undefined (a
+# Bison error since the default value should have been set already) or defined
+# to any other value (possibly a user error).  Don't record this as a Bison
+# usage of the variable as there's no reason to suspect that the value has yet
+# influenced the output.
+#
+# For example:
+#
+#   b4_percent_define_check_values([[[[foo]], [[foo-value1]], [[foo-value2]]]],
+#                                  [[[[bar]], [[bar-value1]]]])
+m4_define([b4_percent_define_check_values],
+[m4_foreach([b4_sublist], m4_quote($@),
+            [_b4_percent_define_check_values(b4_sublist)])])
+
+m4_define([_b4_percent_define_check_values],
+[m4_ifdef([b4_percent_define(]$1[)],
+  [m4_pushdef([b4_good_value], [0])dnl
+   m4_if($#, 1, [],
+         [m4_foreach([b4_value], m4_dquote(m4_shift($@)),
+                     [m4_if(m4_indir([b4_percent_define(]$1[)]), b4_value,
+                            [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']],
+                         [$1],
+                         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([[b4_percent_define_check_values: undefined %%define variable '%s']], [$1])])])
+
+# b4_percent_code_get([QUALIFIER])
+# --------------------------------
+# If any %code blocks for QUALIFIER are defined, emit them beginning with a
+# comment and ending with synclines and a newline.  If QUALIFIER is not
+# specified or empty, do this for the unqualified %code blocks.  Also, record
+# Bison's usage of QUALIFIER (if specified) by defining
+# b4_percent_code_bison_qualifiers(QUALIFIER).
+#
+# For example, to emit any unqualified %code blocks followed by any %code
+# blocks for the qualifier foo:
+#
+#   b4_percent_code_get
+#   b4_percent_code_get([[foo]])
+m4_define([b4_percent_code_get],
+[m4_pushdef([b4_macro_name], [[b4_percent_code(]$1[)]])dnl
+m4_ifval([$1], [m4_define([b4_percent_code_bison_qualifiers(]$1[)])])dnl
+m4_ifdef(b4_macro_name,
+[b4_comment([m4_if([$#], [0], [[Unqualified %code]],
+                   [["%code ]$1["]])[ blocks.]])
+b4_user_code([m4_indir(b4_macro_name)])
+])dnl
+m4_popdef([b4_macro_name])])
+
+# b4_percent_code_ifdef(QUALIFIER, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------
+# If any %code blocks for QUALIFIER (or unqualified %code blocks if
+# QUALIFIER is empty) are defined, expand IF-TRUE, else expand IF-FALSE.
+# Also, record Bison's usage of QUALIFIER (if specified) by defining
+# b4_percent_code_bison_qualifiers(QUALIFIER).
+m4_define([b4_percent_code_ifdef],
+[m4_ifdef([b4_percent_code(]$1[)],
+          [m4_ifval([$1], [m4_define([b4_percent_code_bison_qualifiers(]$1[)])])$2],
+	  [$3])])
+
+
+## ----------------------------------------------------------- ##
+## After processing the skeletons, check that all the user's   ##
+## %define variables and %code qualifiers were used by Bison.  ##
+## ----------------------------------------------------------- ##
+
+m4_define([b4_check_user_names_wrap],
+[m4_ifdef([b4_percent_]$1[_user_]$2[s],
+          [b4_check_user_names([[%]$1 $2],
+                               [b4_percent_]$1[_user_]$2[s],
+                               [[b4_percent_]$1[_bison_]$2[s]])])])
+
+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

@@ -0,0 +1,26 @@
+                                                            -*- Autoconf -*-
+
+# C++ skeleton dispatching for Bison.
+
+# 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
+# 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/>.
+
+b4_glr_if(             [m4_define([b4_used_skeleton], [b4_pkgdatadir/[glr.cc]])])
+b4_nondeterministic_if([m4_define([b4_used_skeleton], [b4_pkgdatadir/[glr.cc]])])
+
+m4_define_default([b4_used_skeleton], [b4_pkgdatadir/[lalr1.cc]])
+m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
+
+m4_include(b4_used_skeleton)

data/c++.m4

@@ -1,23 +1,21 @@
-m4_divert(-1)                                               -*- Autoconf -*-
+                                                            -*- Autoconf -*-
 
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2 of the License, or
+# 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c.m4])
 
@@ -26,12 +24,64 @@ m4_include(b4_pkgdatadir/[c.m4])
 ## ---------------- ##
 
 # Default parser class name.
-m4_define_default([b4_parser_class_name], [parser])
+b4_percent_define_default([[parser_class_name]], [[parser]])
-m4_define_default([b4_location_type], [location])
+
-m4_define_default([b4_filename_type], [std::string])
+# Don't do that so that we remember whether we're using a user
-m4_define_default([b4_namespace], m4_defn([b4_prefix]))
+# request, or the default value.
-m4_define_default([b4_define_location_comparison],
+#
-		  m4_if(b4_filename_type, [std::string], [1], [0]))
+# 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]])
+b4_percent_define_default([[define_location_comparison]],
+                          [m4_if(b4_percent_define_get([[filename_type]]),
+                                 [std::string], [[true]], [[false]])])
+
+
+## ----------- ##
+## Namespace.  ##
+## ----------- ##
+
+m4_define([b4_namespace_ref], [b4_percent_define_get([[namespace]])])
+
+# Don't permit an empty b4_namespace_ref.  Any `::parser::foo' appended to it
+# would compile as an absolute reference with `parser' in the global namespace.
+# b4_namespace_open would open an anonymous namespace and thus establish
+# internal linkage.  This would compile.  However, it's cryptic, and internal
+# linkage for the parser would be specified in all translation units that
+# include the header, which is always generated.  If we ever need to permit
+# internal linkage somehow, surely we can find a cleaner approach.
+m4_if(m4_bregexp(b4_namespace_ref, [^[	 ]*$]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+                [[namespace reference is empty]])])
+
+# Instead of assuming the C++ compiler will do it, Bison should reject any
+# invalid b4_namepsace_ref that would be converted to a valid
+# b4_namespace_open.  The problem is that Bison doesn't always output
+# b4_namespace_ref to uncommented code but should reserve the ability to do so
+# in future releases without risking breaking any existing user grammars.
+# Specifically, don't allow empty names as b4_namespace_open would just convert
+# those into anonymous namespaces, and that might tempt some users.
+m4_if(m4_bregexp(b4_namespace_ref, [::[	 ]*::]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+                [[namespace reference has consecutive "::"]])])
+m4_if(m4_bregexp(b4_namespace_ref, [::[	 ]*$]), [-1], [],
+[b4_complain_at(b4_percent_define_get_loc([[namespace]]),
+                [[namespace reference has a trailing "::"]])])
+
+m4_define([b4_namespace_open],
+[b4_user_code([b4_percent_define_get_syncline([[namespace]])
+[namespace ]m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref),
+                                                [^\(.\)[	 ]*::], [\1])),
+                         [::], [ { namespace ])[ {]])])
+
+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[ ]),
+                                    [^\(.\)[	 ]*\(::\)?\([^][:]\|:[^:]\)*],
+                                    [\1])),
+             [::\([^][:]\|:[^:]\)*], [} ])[} // ]b4_namespace_ref])])
 
 
 # b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
@@ -47,6 +97,8 @@ m4_map_sep([     b4_token_enum], [,
 ])
 
 
+
+
 ## ----------------- ##
 ## Semantic Values.  ##
 ## ----------------- ##
@@ -122,3 +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-like.m4

@@ -0,0 +1,44 @@
+                                                            -*- Autoconf -*-
+
+# Common code for C-like languages (C, C++, Java, etc.)
+
+# 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/>.
+
+# b4_dollar_dollar_(VALUE, FIELD, DEFAULT-FIELD)
+# ----------------------------------------------
+# If FIELD (or DEFAULT-FIELD) is non-null, return "VALUE.FIELD",
+# otherwise just VALUE.  Be sure to pass "(VALUE)" is VALUE is a
+# pointer.
+m4_define([b4_dollar_dollar_],
+[m4_if([$2], [[]],
+       [m4_ifval([$3], [($1.$3)],
+                 [$1])],
+       [($1.$2)])])
+
+# b4_dollar_pushdef(VALUE-POINTER, DEFAULT-FIELD, LOCATION)
+# b4_dollar_popdef
+# ---------------------------------------------------------
+# Define b4_dollar_dollar for VALUE and DEFAULT-FIELD,
+# and b4_at_dollar for LOCATION.
+m4_define([b4_dollar_pushdef],
+[m4_pushdef([b4_dollar_dollar],
+            [b4_dollar_dollar_([$1], m4_dquote($][1), [$2])])dnl
+m4_pushdef([b4_at_dollar], [$3])dnl
+])
+m4_define([b4_dollar_popdef],
+[m4_popdef([b4_at_dollar])dnl
+m4_popdef([b4_dollar_dollar])dnl
+])

data/c-skel.m4

@@ -0,0 +1,26 @@
+                                                            -*- Autoconf -*-
+
+# C skeleton dispatching for Bison.
+
+# 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
+# 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/>.
+
+b4_glr_if(             [m4_define([b4_used_skeleton], [b4_pkgdatadir/[glr.c]])])
+b4_nondeterministic_if([m4_define([b4_used_skeleton], [b4_pkgdatadir/[glr.c]])])
+
+m4_define_default([b4_used_skeleton], [b4_pkgdatadir/[yacc.c]])
+m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
+
+m4_include(b4_used_skeleton)

data/c.m4

@@ -1,98 +1,107 @@
-m4_divert(-1)                                               -*- Autoconf -*-
+                                                            -*- Autoconf -*-
 
 # C M4 Macros for Bison.
-# Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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
-# the Free Software Foundation; either version 2 of the License, or
+# 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+
-# 02110-1301  USA
+m4_include(b4_pkgdatadir/[c-like.m4])
+
+# 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.  ##
 ## ---------------- ##
 
-# b4_copyright(TITLE, YEARS)
+# b4_comment(TEXT)
-# --------------------------
+# ----------------
-m4_define([b4_copyright],
+m4_define([b4_comment], [/* m4_bpatsubst([$1], [
-[/* A Bison parser, made by GNU Bison b4_version.  */
+], [
-
+   ])  */])
-/* $1
-
-m4_text_wrap([Copyright (C) $2 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 2, 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, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */])
-
 
 # b4_identification
 # -----------------
+# 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.
 m4_define([b4_identification],
-[/* Identify Bison output.  */
+[[/* Identify Bison output.  */
-[#]define YYBISON 1
+#define YYBISON 1
 
 /* Bison version.  */
-[#]define YYBISON_VERSION "b4_version"
+#define YYBISON_VERSION "]b4_version["
 
 /* Skeleton name.  */
-[#]define YYSKELETON_NAME b4_skeleton
+#define YYSKELETON_NAME ]b4_skeleton[]m4_ifdef([b4_pure_flag], [[
 
 /* Pure parsers.  */
-[#]define YYPURE b4_pure_flag
+#define YYPURE ]b4_pure_flag])[]m4_ifdef([b4_push_flag], [[
 
-/* Using locations.  */
+/* Push parsers.  */
-[#]define YYLSP_NEEDED b4_locations_flag
+#define YYPUSH ]b4_push_flag])[]m4_ifdef([b4_pull_flag], [[
-])
+
+/* Pull parsers.  */
+#define YYPULL ]b4_pull_flag])[
+]])
 
 
 ## ---------------- ##
 ## Default values.  ##
 ## ---------------- ##
 
-m4_define_default([b4_epilogue], [])
+# 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], [YYSTYPE])
+m4_define_default([b4_union_name], [b4_api_PREFIX[]STYPE])
-
-# The initial column and line.
-m4_define_default([b4_location_initial_column], [1])
-m4_define_default([b4_location_initial_line],   [1])
 
 
 ## ------------------------ ##
@@ -109,9 +118,8 @@ m4_define([b4_user_args],
 # --------------
 # If defined, b4_parse_param arrives double quoted, but below we prefer
 # it to be single quoted.
-m4_define_default([b4_parse_param])
 m4_define([b4_parse_param],
-b4_parse_param))
+b4_parse_param)
 
 
 # b4_parse_param_for(DECL, FORMAL, BODY)
@@ -120,7 +128,7 @@ b4_parse_param))
 # the formal name to FORMAL, and evaluating the BODY.
 m4_define([b4_parse_param_for],
 [m4_foreach([$1_$2], m4_defn([b4_parse_param]),
-[m4_pushdef([$1], m4_fst($1_$2))dnl
+[m4_pushdef([$1], m4_unquote(m4_car($1_$2)))dnl
 m4_pushdef([$2], m4_shift($1_$2))dnl
 $3[]dnl
 m4_popdef([$2])dnl
@@ -140,13 +148,6 @@ m4_define([b4_parse_param_use],
 ## Data Types.  ##
 ## ------------ ##
 
-# b4_ints_in(INT1, INT2, LOW, HIGH)
-# ---------------------------------
-# Return 1 iff both INT1 and INT2 are in [LOW, HIGH], 0 otherwise.
-m4_define([b4_ints_in],
-[m4_eval([$3 <= $1 && $1 <= $4 && $3 <= $2 && $2 <= $4])])
-
-
 # b4_int_type(MIN, MAX)
 # ---------------------
 # Return the smallest int type able to handle numbers ranging from
@@ -171,58 +172,43 @@ 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_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.  NULL infringes on the user name
+# Return a null pointer constant.
-# space in C, so use 0 rather than NULL.
+m4_define([b4_null], [YY_NULL])
-m4_define([b4_null], [0])
-
-
-## ------------------ ##
-## Decoding options.  ##
-## ------------------ ##
-
-# b4_flag_if(FLAG, IF-TRUE, IF-FALSE)
-# -----------------------------------
-# Run IF-TRUE if b4_FLAG_flag is 1, IF-FALSE if FLAG is 0, otherwise fail.
-m4_define([b4_flag_if],
-[m4_case(b4_$1_flag,
-         [0], [$3],
-	 [1], [$2],
-	 [m4_fatal([invalid $1 value: ]$1)])])
-
-
-# b4_define_flag_if(FLAG)
-# -----------------------
-# Define "b4_FLAG_if(IF-TRUE, IF-FALSE)" that depends on the
-# value of the Boolean FLAG.
-m4_define([b4_define_flag_if],
-[_b4_define_flag_if($[1], $[2], [$1])])
-
-# _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.
-m4_define([_b4_define_flag_if],
-[m4_if([$1$2], $[1]$[2], [],
-       [m4_fatal([$0: Invalid arguments: $@])])dnl
-m4_define([b4_$3_if],
-          [b4_flag_if([$3], [$1], [$2])])])
-
-
-# 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([locations])      # Whether locations are tracked.
-b4_define_flag_if([pure])           # Whether the interface is pure.
-b4_define_flag_if([yacc])           # Whether POSIX Yacc is emulated.
 
 
 
@@ -242,7 +228,7 @@ m4_define([b4_token_define],
 # -------------------------------------------------------
 # Output the definition of the tokens (if there are) as #defines.
 m4_define([b4_token_defines],
-[m4_if([$@], [[]], [],
+[m4_if([$#$1], [1], [],
 [/* Tokens.  */
 m4_map([b4_token_define], [$@])])
 ])
@@ -259,19 +245,19 @@ m4_define([b4_token_enum],
 # -----------------------------------------------------
 # Output the definition of the tokens (if there are) as enums.
 m4_define([b4_token_enums],
-[m4_if([$@], [[]], [],
+[m4_if([$#$1], [1], [],
-[/* Tokens.  */
+[[/* Tokens.  */
-#ifndef YYTOKENTYPE
+#ifndef ]b4_api_PREFIX[TOKENTYPE
-# define YYTOKENTYPE
+# define ]b4_api_PREFIX[TOKENTYPE
    /* Put the tokens into the symbol table, so that GDB and other debuggers
       know about them.  */
-   enum yytokentype {
+   enum ]b4_api_prefix[tokentype {
-m4_map_sep([     b4_token_enum], [,
+]m4_map_sep([     b4_token_enum], [,
 ],
-	   [$@])
+	   [$@])[
    };
 #endif
-])])
+]])])
 
 
 # b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
@@ -311,8 +297,8 @@ m4_define([b4_c_function_def],
 b4_c_ansi_function_def($@)
 #else
 $2
-$1 (b4_c_knr_formal_names(m4_shiftn(2, $@)))
+$1 (b4_c_knr_formal_names(m4_shift2($@)))
-b4_c_knr_formal_decls(m4_shiftn(2, $@))
+b4_c_knr_formal_decls(m4_shift2($@))
 #endif[]dnl
 ])
 
@@ -322,7 +308,7 @@ b4_c_knr_formal_decls(m4_shiftn(2, $@))
 # Declare the function NAME in ANSI.
 m4_define([b4_c_ansi_function_def],
 [$2
-$1 (b4_c_ansi_formals(m4_shiftn(2, $@)))[]dnl
+$1 (b4_c_ansi_formals(m4_shift2($@)))[]dnl
 ])
 
 
@@ -330,9 +316,8 @@ $1 (b4_c_ansi_formals(m4_shiftn(2, $@)))[]dnl
 # --------------------------------------
 # Output the arguments ANSI-C definition.
 m4_define([b4_c_ansi_formals],
-[m4_case([$@],
+[m4_if([$#], [0], [void],
-	 [],   [void],
+       [$#$1], [1], [void],
-	 [[]], [void],
 	       [m4_map_sep([b4_c_ansi_formal], [, ], [$@])])])
 
 m4_define([b4_c_ansi_formal],
@@ -384,7 +369,7 @@ $2 $1 ();
 # ----------------------------------------------------------------
 # Declare the function NAME.
 m4_define([b4_c_ansi_function_decl],
-[$2 $1 (b4_c_ansi_formals(m4_shiftn(2, $@)));[]dnl
+[$2 $1 (b4_c_ansi_formals(m4_shift2($@)));[]dnl
 ])
 
 
@@ -399,7 +384,7 @@ m4_define([b4_c_ansi_function_decl],
 # -----------------------------------------------------------
 # Call the function NAME with arguments NAME1, NAME2 etc.
 m4_define([b4_c_function_call],
-[$1 (b4_c_args(m4_shiftn(2, $@)))[]dnl
+[$1 (b4_c_args(m4_shift2($@)))[]dnl
 ])
 
 
@@ -417,50 +402,9 @@ m4_define([b4_c_arg],
 ## Synclines.  ##
 ## ----------- ##
 
-# b4_basename(NAME)
+# b4_sync_start(LINE, FILE)
-# -----------------
-# Similar to POSIX basename; the differences don't matter here.
-# Beware that NAME is not evaluated.
-m4_define([b4_basename],
-[m4_bpatsubst([$1], [^.*/\([^/]+\)/*$], [\1])])
-
-
-# b4_syncline(LINE, FILE)
 # -----------------------
-m4_define([b4_syncline],
+m4_define([b4_sync_start], [[#]line $1 $2])
-[b4_flag_if([synclines],
-[/* Line __line__ of b4_basename(m4_quote(__file__)).  */
-[#]line $1 $2])])
-
-
-# b4_user_code(USER-CODE)
-# -----------------------
-# Emit code from the user, ending it with synclines.
-m4_define([b4_user_code],
-[$1
-b4_syncline([@oline@], [@ofile@])])
-
-
-# b4_define_user_code(MACRO)
-# --------------------------
-# From b4_MACRO, build b4_user_MACRO that includes the synclines.
-m4_define([b4_define_user_code],
-[m4_define([b4_user_$1],
-[b4_user_code([b4_$1])])])
-
-
-# b4_user_actions
-# b4_user_initial_action
-# b4_user_post_prologue
-# b4_user_start_header
-# b4_user_stype
-# ----------------------
-# Macros that issue user code, ending with synclines.
-b4_define_user_code([actions])
-b4_define_user_code([initial_action])
-b4_define_user_code([post_prologue])
-b4_define_user_code([start_header])
-b4_define_user_code([stype])
 
 
 ## -------------- ##
@@ -478,17 +422,18 @@ $2
 #                   SYMBOL-TAG, SYMBOL-NUM,
 #                   SYMBOL-ACTION, SYMBOL-TYPENAME)
 # -------------------------------------------------
+# Issue the code for a symbol action (e.g., %printer).
+#
+# Define b4_dollar_dollar([TYPE-NAME]), and b4_at_dollar, which are
+# invoked where $<TYPE-NAME>$ and @$ were specified by the user.
 m4_define([b4_symbol_actions],
-[m4_pushdef([b4_dollar_dollar],
+[b4_dollar_pushdef([(*yyvaluep)], [$6], [(*yylocationp)])dnl
-   [m4_ifval([$6], [(yyvaluep->$6)], [(*yyvaluep)])])dnl
-m4_pushdef([b4_at_dollar], [(*yylocationp)])dnl
       case $4: /* $3 */
 b4_syncline([$2], [$1])
 	$5;
 b4_syncline([@oline@], [@ofile@])
 	break;
-m4_popdef([b4_at_dollar])dnl
+b4_dollar_popdef[]dnl
-m4_popdef([b4_dollar_dollar])dnl
 ])
 
 
@@ -550,6 +495,8 @@ 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);
@@ -595,3 +542,102 @@ 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

@@ -1,22 +1,21 @@
-m4_divert(-1)                                                       -*- C -*-
+                                                                    -*- C -*-
 
 # C++ GLR skeleton for Bison
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2 of the License, or
+# 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
 
 
 # This skeleton produces a C++ class that encapsulates a C glr parser.
@@ -52,11 +51,14 @@ m4_define([b4_pure_flag],      [1])
 
 # The header is mandatory.
 b4_defines_if([],
-              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+              [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]])])
 
 # Save the parse parameters.
 m4_define([b4_parse_param_orig], m4_defn([b4_parse_param]))
@@ -76,10 +78,10 @@ m4_define([b4_yy_symbol_print_generate],
     [static void],
     [[FILE *],               []],
     [[int yytype],           [yytype]],
-    [[const b4_namespace::b4_parser_class_name::semantic_type *yyvaluep],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::semantic_type *yyvaluep],
-			     [yyvaluep]],
+                             [yyvaluep]],
-    [[const b4_namespace::b4_parser_class_name::location_type *yylocationp],
+    [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp],
-			     [yylocationp]],
+                             [yylocationp]],
     b4_parse_param)[
 {
 ]b4_parse_param_use[]dnl
@@ -88,18 +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_syncline([@oline@], [@ofile@])[
-
+]b4_yylloc_default_define[
-b4_c_ansi_function_decl([yyerror],
+#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
+]b4_c_ansi_function_decl([yyerror],
     [static void],
-    [[b4_namespace::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@])[
 /*------------------.
@@ -108,7 +114,8 @@ m4_append([b4_epilogue],
 
 ]b4_c_ansi_function_def([yyerror],
     [static void],
-    [[b4_namespace::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]])[
 {
@@ -117,15 +124,14 @@ m4_append([b4_epilogue],
 }
 
 
-namespace ]b4_namespace[
+]b4_namespace_open[
-{
 ]dnl In this section, the parse param are the original parse_params.
 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),
+    ]m4_ifset([b4_parse_param], [  ], [ :])[
       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] << " ("
+               << ' ' << yytname[yytype] << " ("
-	       << *yylocationp << ": ";
+               << *yylocationp << ": ";
     yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
     *yycdebug_ << ')';
   }
@@ -189,104 +199,71 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
   ]b4_parser_class_name[::debug_level_type
   ]b4_parser_class_name[::debug_level () const
   {
-    return yydebug_;
+    return yydebug;
   }
 
   void
   ]b4_parser_class_name[::set_debug_level (debug_level_type l)
   {
-    yydebug_ = l;
+    // Actually, it is yydebug which is really used.
+    yydebug = l;
   }
 
 #endif
 ]m4_popdef([b4_parse_param])dnl
-[} // namespace ]b4_namespace[
+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::b4_parser_class_name& yyparser], [[yyparser]]],]
+            [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]],]
-m4_defn([b4_parse_param])))],
+m4_defn([b4_parse_param]))],
 [m4_pushdef([b4_parse_param],
-	    [[[[b4_namespace::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])
 
-@output @output_header_name@
+m4_divert_push(0)
+@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
+]b4_cpp_guard_open([b4_spec_defines_file])[
-# define PARSER_HEADER_H
 
-]m4_ifdef([b4_start_header],
+]b4_percent_code_get([[requires]])[
-[[/* Copy the %start-header blocks.  */
-]b4_user_start_header])[
 
-#include <string>
+# include <string>
-#include <iostream>
+# include <iostream>
+]b4_percent_define_ifdef([[location_type]], [],
+                         [[# include "location.hh"]])[
 
-/* Using locations.  */
+]b4_YYDEBUG_define[
-#define YYLSP_NEEDED ]b4_locations_flag[
 
-namespace ]b4_namespace[
+]b4_namespace_open[
-{
-  class position;
-  class location;
-}
-
-#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
-
-namespace ]b4_namespace[
-{
   /// A Bison parser.
   class ]b4_parser_class_name[
   {
   public:
     /// Symbol semantic values.
-#ifndef YYSTYPE
+# ifndef ]b4_api_PREFIX[STYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
+    {
 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
+# else
-    typedef YYSTYPE semantic_type;
+    typedef ]b4_api_PREFIX[STYPE semantic_type;
-#endif
+# endif
     /// Symbol locations.
-    typedef ]b4_location_type[ location_type;
+    typedef ]b4_percent_define_get([[location_type]],
+                                   [[location]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -324,57 +301,42 @@ 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 semantic_type* yyvaluep,
-					 const location_type* yylocationp);
+                                         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 semantic_type* yyvaluep,
-				   const location_type* yylocationp);
+                                   const location_type* yylocationp);
   private:
     /* Debugging.  */
-    int yydebug_;
     std::ostream* yycdebug_;
-#endif
+# 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);
 
 ]b4_parse_param_vars[
   };
 
 ]dnl Redirections for glr.c.
-m4_ifset([b4_global_tokens_and_yystype],
+b4_percent_define_flag_if([[global_tokens_and_yystype]],
 [b4_token_defines(b4_tokens)])
 [
-#ifndef YYSTYPE
+#ifndef ]b4_api_PREFIX[STYPE
-# define YYSTYPE ]b4_namespace[::]b4_parser_class_name[::semantic_type
+# define ]b4_api_PREFIX[STYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type
 #endif
-#ifndef YYLTYPE
+#ifndef ]b4_api_PREFIX[LTYPE
-# define YYLTYPE ]b4_namespace[::]b4_parser_class_name[::location_type
+# define ]b4_api_PREFIX[LTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type
 #endif
 
-}
+]b4_namespace_close[
-
+]b4_percent_code_get([[provides]])[
-]m4_ifdef([b4_end_header],
+]b4_cpp_guard_close([b4_spec_defines_file])[
-[[/* Copy the %end-header blocks.  */
+]m4_divert_pop(0)
-]b4_end_header])[]dnl
-
-[#endif /* ! defined PARSER_HEADER_H */]

data/java-skel.m4

@@ -0,0 +1,26 @@
+                                                            -*- Autoconf -*-
+
+# Java skeleton dispatching for Bison.
+
+# 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
+# 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/>.
+
+b4_glr_if(             [b4_complain([%%glr-parser not supported for Java])])
+b4_nondeterministic_if([b4_complain([%%nondeterministic-parser not supported for Java])])
+
+m4_define_default([b4_used_skeleton], [b4_pkgdatadir/[lalr1.java]])
+m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
+
+m4_include(b4_used_skeleton)

data/java.m4

@@ -0,0 +1,304 @@
+                                                            -*- Autoconf -*-
+
+# Java language support for Bison
+
+# 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
+# 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_include(b4_pkgdatadir/[c-like.m4])
+
+# b4_comment(TEXT)
+# ----------------
+m4_define([b4_comment], [/* m4_bpatsubst([$1], [
+], [
+   ])  */])
+
+
+# b4_list2(LIST1, LIST2)
+# --------------------------
+# Join two lists with a comma if necessary.
+m4_define([b4_list2],
+	  [$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2])
+
+
+# b4_percent_define_get3(DEF, PRE, POST, NOT)
+# -------------------------------------------
+# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed,
+# otherwise NOT.
+m4_define([b4_percent_define_get3],
+	  [m4_ifval(m4_quote(b4_percent_define_get([$1])),
+		[$2[]b4_percent_define_get([$1])[]$3], [$4])])
+
+
+
+# b4_flag_value(BOOLEAN-FLAG)
+# ---------------------------
+m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])])
+
+
+# b4_public_if(TRUE, FALSE)
+# -------------------------
+b4_percent_define_default([[public]], [[false]])
+m4_define([b4_public_if],
+[b4_percent_define_flag_if([public], [$1], [$2])])
+
+
+# b4_abstract_if(TRUE, FALSE)
+# ---------------------------
+b4_percent_define_default([[abstract]], [[false]])
+m4_define([b4_abstract_if],
+[b4_percent_define_flag_if([abstract], [$1], [$2])])
+
+
+# b4_final_if(TRUE, FALSE)
+# ---------------------------
+b4_percent_define_default([[final]], [[false]])
+m4_define([b4_final_if],
+[b4_percent_define_flag_if([final], [$1], [$2])])
+
+
+# b4_strictfp_if(TRUE, FALSE)
+# ---------------------------
+b4_percent_define_default([[strictfp]], [[false]])
+m4_define([b4_strictfp_if],
+[b4_percent_define_flag_if([strictfp], [$1], [$2])])
+
+
+# b4_lexer_if(TRUE, FALSE)
+# ------------------------
+m4_define([b4_lexer_if],
+[b4_percent_code_ifdef([[lexer]], [$1], [$2])])
+
+
+# b4_identification
+# -----------------
+m4_define([b4_identification],
+[  /** Version number for the Bison executable that generated this parser.  */
+  public static final String bisonVersion = "b4_version";
+
+  /** Name of the skeleton that generated this parser.  */
+  public static final String bisonSkeleton = b4_skeleton;
+])
+
+
+## ------------ ##
+## Data types.  ##
+## ------------ ##
+
+# b4_int_type(MIN, MAX)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# MIN to MAX (included).
+m4_define([b4_int_type],
+[m4_if(b4_ints_in($@,   [-128],   [127]), [1], [byte],
+       b4_ints_in($@, [-32768], [32767]), [1], [short],
+					       [int])])
+
+# b4_int_type_for(NAME)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# `NAME_min' to `NAME_max' (included).
+m4_define([b4_int_type_for],
+[b4_int_type($1_min, $1_max)])
+
+# b4_null
+# -------
+m4_define([b4_null], [null])
+
+
+## ------------------------- ##
+## Assigning token numbers.  ##
+## ------------------------- ##
+
+# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
+# ---------------------------------------
+# Output the definition of this token as an enum.
+m4_define([b4_token_enum],
+[  /** Token number, to be returned by the scanner.  */
+  public static final int $1 = $2;
+])
+
+
+# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -----------------------------------------------------
+# Output the definition of the tokens (if there are) as enums.
+m4_define([b4_token_enums],
+[m4_if([$#$1], [1], [],
+[/* Tokens.  */
+m4_map([b4_token_enum], [$@])])
+])
+
+# b4-case(ID, CODE)
+# -----------------
+# We need to fool Java's stupid unreachable code detection.
+m4_define([b4_case], [  case $1:
+  if (yyn == $1)
+    $2;
+  break;
+    ])
+
+
+## ---------------- ##
+## Default values.  ##
+## ---------------- ##
+
+m4_define([b4_yystype], [b4_percent_define_get([[stype]])])
+b4_percent_define_default([[stype]], [[Object]])])
+
+# %name-prefix
+m4_define_default([b4_prefix], [[YY]])
+
+b4_percent_define_default([[parser_class_name]], [b4_prefix[]Parser])])
+m4_define([b4_parser_class_name], [b4_percent_define_get([[parser_class_name]])])
+
+b4_percent_define_default([[lex_throws]], [[java.io.IOException]])])
+m4_define([b4_lex_throws], [b4_percent_define_get([[lex_throws]])])
+
+b4_percent_define_default([[throws]], [])])
+m4_define([b4_throws], [b4_percent_define_get([[throws]])])
+
+b4_percent_define_default([[location_type]], [Location])])
+m4_define([b4_location_type], [b4_percent_define_get([[location_type]])])
+
+b4_percent_define_default([[position_type]], [Position])])
+m4_define([b4_position_type], [b4_percent_define_get([[position_type]])])
+
+
+## ----------------- ##
+## Semantic Values.  ##
+## ----------------- ##
+
+
+# b4_lhs_value([TYPE])
+# --------------------
+# Expansion of $<TYPE>$.
+m4_define([b4_lhs_value], [yyval])
+
+
+# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
+# --------------------------------------
+# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
+# symbols on RHS.
+#
+# In this simple implementation, %token and %type have class names
+# between the angle brackets.
+m4_define([b4_rhs_value],
+[(m4_ifval($3, [($3)])[](yystack.valueAt ($1-($2))))])
+
+# b4_lhs_location()
+# -----------------
+# Expansion of @$.
+m4_define([b4_lhs_location],
+[(yyloc)])
+
+
+# b4_rhs_location(RULE-LENGTH, NUM)
+# ---------------------------------
+# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
+# on RHS.
+m4_define([b4_rhs_location],
+[yystack.locationAt ($1-($2))])
+
+
+# b4_lex_param
+# b4_parse_param
+# --------------
+# If defined, b4_lex_param arrives double quoted, but below we prefer
+# it to be single quoted.  Same for b4_parse_param.
+
+# TODO: should be in bison.m4
+m4_define_default([b4_lex_param], [[]]))
+m4_define([b4_lex_param], b4_lex_param))
+m4_define([b4_parse_param], b4_parse_param))
+
+# b4_lex_param_decl
+# -------------------
+# Extra formal arguments of the constructor.
+m4_define([b4_lex_param_decl],
+[m4_ifset([b4_lex_param],
+          [b4_remove_comma([$1],
+			   b4_param_decls(b4_lex_param))],
+	  [$1])])
+
+m4_define([b4_param_decls],
+	  [m4_map([b4_param_decl], [$@])])
+m4_define([b4_param_decl], [, $1])
+
+m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)])
+
+
+
+# b4_parse_param_decl
+# -------------------
+# Extra formal arguments of the constructor.
+m4_define([b4_parse_param_decl],
+[m4_ifset([b4_parse_param],
+          [b4_remove_comma([$1],
+			   b4_param_decls(b4_parse_param))],
+	  [$1])])
+
+
+
+# b4_lex_param_call
+# -------------------
+# Delegating the lexer parameters to the lexer constructor.
+m4_define([b4_lex_param_call],
+          [m4_ifset([b4_lex_param],
+	            [b4_remove_comma([$1],
+				     b4_param_calls(b4_lex_param))],
+	            [$1])])
+m4_define([b4_param_calls],
+	  [m4_map([b4_param_call], [$@])])
+m4_define([b4_param_call], [, $2])
+
+
+
+# b4_parse_param_cons
+# -------------------
+# Extra initialisations of the constructor.
+m4_define([b4_parse_param_cons],
+          [m4_ifset([b4_parse_param],
+		    [b4_constructor_calls(b4_parse_param)])])
+
+m4_define([b4_constructor_calls],
+	  [m4_map([b4_constructor_call], [$@])])
+m4_define([b4_constructor_call],
+	  [this.$2 = $2;
+	  ])
+
+
+
+# b4_parse_param_vars
+# -------------------
+# Extra instance variables.
+m4_define([b4_parse_param_vars],
+          [m4_ifset([b4_parse_param],
+		    [
+    /* User arguments.  */
+b4_var_decls(b4_parse_param)])])
+
+m4_define([b4_var_decls],
+	  [m4_map_sep([b4_var_decl], [
+], [$@])])
+m4_define([b4_var_decl],
+	  [    protected final $1;])
+
+
+
+# b4_maybe_throws(THROWS)
+# -----------------------
+# Expand to either an empty string or "throws THROWS".
+m4_define([b4_maybe_throws],
+	  [m4_ifval($1, [throws $1])])

data/lalr1.cc

@@ -1,122 +1,84 @@
-m4_divert(-1)
-
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2 of the License, or
+# 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
 
 m4_include(b4_pkgdatadir/[c++.m4])
 
+m4_define([b4_parser_class_name],
+          [b4_percent_define_get([[parser_class_name]])])
+
 # The header is mandatory.
 b4_defines_if([],
-              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+              [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
 
-# Backward compatibility.
+b4_percent_define_ifdef([[location_type]], [],
-m4_define([b4_location_constructors])
+  [# Backward compatibility.
-m4_include(b4_pkgdatadir/[location.cc])
+  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(0)dnl
+m4_divert_push(0)dnl
 b4_defines_if(
-[@output @output_header_name@
+[@output(b4_spec_defines_file@)@
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])
+             [2002-2012])
-dnl FIXME: This is wrong, we want computed header guards.
 [
+/**
+ ** \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
+]b4_cpp_guard_open([b4_spec_defines_file])[
-# define PARSER_HEADER_H
 
-]m4_ifdef([b4_start_header],
+]b4_percent_code_get([[requires]])[
-[[/* Copy the %start-header blocks.  */
-]b4_user_start_header])[
 
 #include <string>
 #include <iostream>
 #include "stack.hh"
+]b4_percent_define_ifdef([[location_type]], [],
+                         [[#include "location.hh"]])[
 
-namespace ]b4_namespace[
+]b4_YYDEBUG_define[
-{
-  class position;
-  class location;
-}
 
-#include "location.hh"
+]b4_namespace_open[
-
-/* 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
-
-namespace ]b4_namespace[
-{
 
   /// A Bison parser.
   class ]b4_parser_class_name[
   {
   public:
     /// Symbol semantic values.
-#ifndef YYSTYPE
+#ifndef ]b4_api_PREFIX[STYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
+    {
 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_location_type[ location_type;
+    typedef ]b4_percent_define_get([[location_type]],
+                                   [[location]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -133,6 +95,7 @@ b4_user_stype
     /// \returns  0 iff parsing succeeded.
     virtual int parse ();
 
+#if ]b4_api_PREFIX[DEBUG
     /// The current debugging stream.
     std::ostream& debug_stream () const;
     /// Set the current debugging stream.
@@ -144,6 +107,7 @@ b4_user_stype
     debug_level_type debug_level () const;
     /// Set the current debugging level.
     void set_debug_level (debug_level_type l);
+#endif
 
   private:
     /// Report a syntax error.
@@ -154,10 +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
+    virtual std::string yysyntax_error_ (int yystate, int tok);
-b4_error_verbose_if([, 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.
@@ -191,6 +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.  */
@@ -198,7 +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_[];
@@ -222,19 +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
+]b4_token_table_if([[#if ]b4_api_PREFIX[DEBUG]])[
-
-#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
     /// 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.
@@ -285,41 +252,42 @@ b4_error_verbose_if([, int tok])[);
     static const token_number_type yyundef_token_;
 ]b4_parse_param_vars[
   };
-}
+]b4_namespace_close[
 
-]m4_ifset([b4_global_tokens_and_yystype],
+]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::b4_parser_class_name::semantic_type
+# define ]b4_api_PREFIX[STYPE b4_namespace_ref::b4_parser_class_name::semantic_type
 #endif
-])
+])[
-m4_ifdef([b4_end_header],
+]b4_percent_code_get([[provides]])[
-[[/* Copy the %end-header blocks.  */
+]b4_cpp_guard_close([b4_spec_defines_file])
-]b4_end_header])[]dnl
-
-[#endif /* ! defined PARSER_HEADER_H */]
 ])dnl
-@output @output_parser_name@
+@output(b4_parser_file_name@)@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])
+             [2002-2012])
+b4_percent_code_get([[top]])[]dnl
 m4_if(b4_prefix, [yy], [],
 [
 // Take the name prefix into account.
 #define yylex   b4_prefix[]lex])[
 
 /* First part of user declarations.  */
-]b4_pre_prologue
+]b4_user_pre_prologue[
 
-b4_defines_if([
+]b4_defines_if([[
-#include @output_header_name@])[
+#include "@basename(]b4_spec_defines_file[@)"]])[
 
 /* User implementation prologue.  */
 ]b4_user_post_prologue[
+]b4_percent_code_get[
+
+]b4_null_define[
 
 #ifndef YY_
-# if YYENABLE_NLS
+# 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)
@@ -330,11 +298,14 @@ b4_defines_if([
 # 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_)
@@ -361,22 +332,24 @@ 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_)
 
 #define YYACCEPT	goto yyacceptlab
 #define YYABORT		goto yyabortlab
 #define YYERROR		goto yyerrorlab
+#define YYRECOVERING()  (!!yyerrstatus_)
 
-namespace ]b4_namespace[
+]b4_namespace_open[]b4_error_verbose_if([[
-{
-#if YYERROR_VERBOSE
 
   /* Return YYSTR after stripping away unnecessary quotes and
      backslashes, so that it's suitable for yyerror.  The heuristic is
@@ -414,13 +387,12 @@ namespace ]b4_namespace[
 
     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[
@@ -431,7 +403,7 @@ namespace ]b4_namespace[
   {
   }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   /*--------------------------------.
   | Print this symbol on YYOUTPUT.  |
   `--------------------------------*/
@@ -442,6 +414,9 @@ namespace ]b4_namespace[
   {
     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
@@ -489,7 +464,7 @@ namespace ]b4_namespace[
     yylocation_stack_.pop (n);
   }
 
-#if YYDEBUG
+#if ]b4_api_PREFIX[DEBUG
   std::ostream&
   ]b4_parser_class_name[::debug_stream () const
   {
@@ -516,6 +491,18 @@ namespace ]b4_namespace[
   }
 #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 ()
   {
@@ -537,7 +524,7 @@ namespace ]b4_namespace[
     /// Location of the lookahead.
     location_type yylloc;
     /// The locations where the error started and ended.
-    location yyerror_range[2];
+    location_type yyerror_range[3];
 
     /// $$.
     semantic_type yyval;
@@ -549,12 +536,10 @@ namespace ]b4_namespace[
     YYCDEBUG << "Starting parse" << std::endl;
 
 ]m4_ifdef([b4_initial_action], [
-m4_pushdef([b4_at_dollar],     [yylloc])dnl
+b4_dollar_pushdef([yylval], [], [yylloc])dnl
-m4_pushdef([b4_dollar_dollar], [yylval])dnl
+/* User initialization code.  */
-    /* User initialization code.  */
+b4_user_initial_action
-    b4_user_initial_action
+b4_dollar_popdef])[]dnl
-m4_popdef([b4_dollar_dollar])dnl
-m4_popdef([b4_at_dollar])])dnl
 
   [  /* Initialize the stacks.  The initial state will be pushed in
        yynewstate, since the latter expects the semantical and the
@@ -582,7 +567,7 @@ 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.  */
@@ -590,7 +575,7 @@ 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))[;
       }
@@ -618,8 +603,8 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
     yyn = yytable_[yyn];
     if (yyn <= 0)
       {
-	if (yyn == 0 || yyn == yytable_ninf_)
+	if (yy_table_value_is_error_ (yyn))
-	goto yyerrlab;
+	  goto yyerrlab;
 	yyn = -yyn;
 	goto yyreduce;
       }
@@ -674,8 +659,20 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
     switch (yyn)
       {
 	]b4_user_actions[
-	default: break;
+	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);
@@ -699,15 +696,20 @@ 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
+	if (yychar == yyempty_)
-b4_error_verbose_if([, yytoken])[));
+	  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
@@ -742,7 +744,7 @@ 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);
@@ -759,7 +761,7 @@ 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_)
@@ -774,7 +776,7 @@ 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]);
@@ -783,16 +785,16 @@ 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);
 
     /* Shift the error token.  */
     YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],
-		   &yysemantic_stack_[0], &yylocation_stack_[0]);
+		     &yysemantic_stack_[0], &yylocation_stack_[0]);
 
     yystate = yyn;
     goto yynewstate;
@@ -809,7 +811,13 @@ 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.  */
@@ -828,52 +836,100 @@ b4_error_verbose_if([, yytoken])[));
 
   // Generate an error message.
   std::string
-  ]b4_parser_class_name[::yysyntax_error_ (int yystate]dnl
+  ]b4_parser_class_name[::yysyntax_error_ (]dnl
-b4_error_verbose_if([, int tok])[)
+b4_error_verbose_if([int yystate, int yytoken],
-  {
+                    [int, int])[)
-    std::string res;
+  {]b4_error_verbose_if([[
-    YYUSE (yystate);
+    std::string yyres;
-#if YYERROR_VERBOSE
+    // Number of reported tokens (one for the "unexpected", one per
-    int yyn = yypact_[yystate];
+    // "expected").
-    if (yypact_ninf_ < yyn && yyn <= yylast_)
+    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
+        yyarg[yycount++] = yytname_[yytoken];
-	   YYCHECK.  */
+        int yyn = yypact_[yystate];
-	int yyxbegin = yyn < 0 ? -yyn : 0;
+        if (!yy_pact_value_is_default_ (yyn))
-
+          {
-	/* Stay within bounds of both yycheck and yytname.  */
+            /* Start YYX at -YYN if negative to avoid negative indexes in
-	int yychecklim = yylast_ - yyn + 1;
+               YYCHECK.  In other words, skip the first -YYN actions for
-	int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+               this state because they are default actions.  */
-	int count = 0;
+            int yyxbegin = yyn < 0 ? -yyn : 0;
-	for (int x = yyxbegin; x < yyxend; ++x)
+            /* Stay within bounds of both yycheck and yytname.  */
-	  if (yycheck_[x + yyn] == x && x != yyterror_)
+            int yychecklim = yylast_ - yyn + 1;
-	    ++count;
+            int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
-
+            for (int yyx = yyxbegin; yyx < yyxend; ++yyx)
-	// FIXME: This method of building the message is not compatible
+              if (yycheck_[yyx + yyn] == yyx && yyx != yyterror_
-	// with internationalization.  It should work like yacc.c does it.
+                  && !yy_table_value_is_error_ (yytable_[yyx + yyn]))
-	// That is, first build a string that looks like this:
+                {
-	// "syntax error, unexpected %s or %s or %s"
+                  if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-	// Then, invoke YY_ on this string.
+                    {
-	// Finally, use the string as a format to output
+                      yycount = 1;
-	// yytname_[tok], etc.
+                      break;
-	// Until this gets fixed, this message appears in English only.
+                    }
-	res = "syntax error, unexpected ";
+                  else
-	res += yytnamerr_ (yytname_[tok]);
+                    yyarg[yycount++] = yytname_[yyx];
-	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]);
-		}
-	  }
       }
-    else
+
-#endif
+    char const* yyformat = YY_NULL;
-      res = YY_("syntax error");
+    switch (yycount)
-    return res;
+      {
+#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");]])[
   }
 
 
@@ -886,9 +942,9 @@ b4_error_verbose_if([, int tok])[)
     ]b4_pact[
   };
 
-  /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
+  /* YYDEFACT[S] -- default reduction number in state S.  Performed when
-     doesn't specify something else to do.  Zero means the default is an
+     YYTABLE doesn't specify something else to do.  Zero means the
-     error.  */
+     default is an error.  */
   const ]b4_int_type_for([b4_defact])[
   ]b4_parser_class_name[::yydefact_[] =
   {
@@ -911,7 +967,7 @@ 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_[] =
@@ -934,7 +990,7 @@ 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])[
@@ -958,7 +1014,7 @@ 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*
@@ -966,9 +1022,8 @@ 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_[] =
@@ -1010,7 +1065,7 @@ b4_error_verbose_if([, int tok])[)
     int yynrhs = yyr2_[yyrule];
     /* Print the symbols being reduced, and their result.  */
     *yycdebug_ << "Reducing stack by rule " << yyrule - 1
-	       << " (line " << yylno << "), ";
+	       << " (line " << yylno << "):" << std::endl;
     /* The symbols being reduced.  */
     for (int yyi = 0; yyi < yynrhs; yyi++)
       YY_SYMBOL_PRINT ("   $" << yyi + 1 << " =",
@@ -1018,7 +1073,7 @@ 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
@@ -1048,107 +1103,6 @@ b4_error_verbose_if([, int tok])[)
   const unsigned int ]b4_parser_class_name[::yyuser_token_number_max_ = ]b4_user_token_number_max[;
   const ]b4_parser_class_name[::token_number_type ]b4_parser_class_name[::yyundef_token_ = ]b4_undef_token_number[;
 
-} // namespace ]b4_namespace[
+]b4_namespace_close[
-
+]b4_epilogue[]dnl
-]b4_epilogue
+m4_divert_pop(0)
-dnl
-@output b4_dir_prefix[]stack.hh
-b4_copyright([Stack handling for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
-
-#ifndef BISON_STACK_HH
-# define BISON_STACK_HH
-
-#include <deque>
-
-namespace ]b4_namespace[
-{
-  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_;
-  };
-}
-
-#endif // not BISON_STACK_HH]
-m4_divert(-1)

data/lalr1.java

@@ -0,0 +1,928 @@
+# Java skeleton for Bison -*- autoconf -*-
+
+# 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
+# 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_include(b4_pkgdatadir/[java.m4])
+
+b4_defines_if([b4_fatal([%s: %%defines does not make sense in Java], [b4_skeleton])])
+m4_ifval(m4_defn([b4_symbol_destructors]),
+        [b4_fatal([%s: %%destructor does not make sense in Java], [b4_skeleton])],
+        [])
+
+m4_divert_push(0)dnl
+@output(b4_parser_file_name@)@
+b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
+             [2007-2012])
+
+b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
+])[/* First part of user declarations.  */
+]b4_pre_prologue
+b4_percent_code_get([[imports]])
+[/**
+ * A Bison parser, automatically generated from <tt>]m4_bpatsubst(b4_file_name, [^"\(.*\)"$], [\1])[</tt>.
+ *
+ * @@author LALR (1) parser skeleton written by Paolo Bonzini.
+ */
+]b4_public_if([public ])dnl
+b4_abstract_if([abstract ])dnl
+b4_final_if([final ])dnl
+b4_strictfp_if([strictfp ])dnl
+[class ]b4_parser_class_name[]dnl
+b4_percent_define_get3([extends], [ extends ])dnl
+b4_percent_define_get3([implements], [ implements ])[
+{
+  ]b4_identification[
+
+  /** True if verbose error messages are enabled.  */
+  public boolean errorVerbose = ]b4_flag_value([error_verbose]);
+
+b4_locations_if([[
+  /**
+   * A class defining a pair of positions.  Positions, defined by the
+   * <code>]b4_position_type[</code> class, denote a point in the input.
+   * Locations represent a part of the input through the beginning
+   * and ending positions.  */
+  public class ]b4_location_type[ {
+    /** The first, inclusive, position in the range.  */
+    public ]b4_position_type[ begin;
+
+    /** The first position beyond the range.  */
+    public ]b4_position_type[ end;
+
+    /**
+     * Create a <code>]b4_location_type[</code> denoting an empty range located at
+     * a given point.
+     * @@param loc The position at which the range is anchored.  */
+    public ]b4_location_type[ (]b4_position_type[ loc) {
+      this.begin = this.end = loc;
+    }
+
+    /**
+     * Create a <code>]b4_location_type[</code> from the endpoints of the range.
+     * @@param begin The first position included in the range.
+     * @@param end   The first position beyond the range.  */
+    public ]b4_location_type[ (]b4_position_type[ begin, ]b4_position_type[ end) {
+      this.begin = begin;
+      this.end = end;
+    }
+
+    /**
+     * Print a representation of the location.  For this to be correct,
+     * <code>]b4_position_type[</code> should override the <code>equals</code>
+     * method.  */
+    public String toString () {
+      if (begin.equals (end))
+        return begin.toString ();
+      else
+        return begin.toString () + "-" + end.toString ();
+    }
+  }
+
+]])
+
+[  /** Token returned by the scanner to signal the end of its input.  */
+  public static final int EOF = 0;]
+
+b4_token_enums(b4_tokens)
+
+  b4_locations_if([[
+  private ]b4_location_type[ yylloc (YYStack rhs, int n)
+  {
+    if (n > 0)
+      return new ]b4_location_type[ (rhs.locationAt (n-1).begin, rhs.locationAt (0).end);
+    else
+      return new ]b4_location_type[ (rhs.locationAt (0).end);
+  }]])[
+
+  /**
+   * Communication interface between the scanner and the Bison-generated
+   * parser <tt>]b4_parser_class_name[</tt>.
+   */
+  public interface Lexer {
+    ]b4_locations_if([[/**
+     * Method to retrieve the beginning position of the last scanned token.
+     * @@return the position at which the last scanned token starts.  */
+    ]b4_position_type[ getStartPos ();
+
+    /**
+     * Method to retrieve the ending position of the last scanned token.
+     * @@return the first position beyond the last scanned token.  */
+    ]b4_position_type[ getEndPos ();]])[
+
+    /**
+     * Method to retrieve the semantic value of the last scanned token.
+     * @@return the semantic value of the last scanned token.  */
+    ]b4_yystype[ getLVal ();
+
+    /**
+     * 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.
+     * @@return the token identifier corresponding to the next token. */
+    int yylex () ]b4_maybe_throws([b4_lex_throws])[;
+
+    /**
+     * Entry point for error reporting.  Emits an error
+     * ]b4_locations_if([referring to the given location ])[in a user-defined way.
+     *
+     * ]b4_locations_if([[@@param loc The location of the element to which the
+     *                error message is related]])[
+     * @@param s The string for the error message.  */
+     void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s);]
+  }
+
+  b4_lexer_if([[private class YYLexer implements Lexer {
+]b4_percent_code_get([[lexer]])[
+  }
+
+  ]])[/** The object doing lexical analysis for us.  */
+  private Lexer yylexer;
+  ]
+  b4_parse_param_vars
+
+b4_lexer_if([[
+  /**
+   * Instantiates the Bison-generated parser.
+   */
+  public ]b4_parser_class_name (b4_parse_param_decl([b4_lex_param_decl])[) {
+    this.yylexer = new YYLexer(]b4_lex_param_call[);
+    ]b4_parse_param_cons[
+  }
+]])
+
+  /**
+   * Instantiates the Bison-generated parser.
+   * @@param yylexer The scanner that will supply tokens to the parser.
+   */
+  b4_lexer_if([[protected]], [[public]]) b4_parser_class_name[ (]b4_parse_param_decl([[Lexer yylexer]])[) {
+    this.yylexer = yylexer;
+    ]b4_parse_param_cons[
+  }
+
+  private java.io.PrintStream yyDebugStream = System.err;
+
+  /**
+   * Return the <tt>PrintStream</tt> on which the debugging output is
+   * printed.
+   */
+  public final java.io.PrintStream getDebugStream () { return yyDebugStream; }
+
+  /**
+   * Set the <tt>PrintStream</tt> on which the debug output is printed.
+   * @@param s The stream that is used for debugging output.
+   */
+  public final void setDebugStream(java.io.PrintStream s) { yyDebugStream = s; }
+
+  private int yydebug = 0;
+
+  /**
+   * Answer the verbosity of the debugging output; 0 means that all kinds of
+   * output from the parser are suppressed.
+   */
+  public final int getDebugLevel() { return yydebug; }
+
+  /**
+   * Set the verbosity of the debugging output; 0 means that all kinds of
+   * output from the parser are suppressed.
+   * @@param level The verbosity level for debugging output.
+   */
+  public final void setDebugLevel(int level) { yydebug = level; }
+
+  private final int yylex () ]b4_maybe_throws([b4_lex_throws]) [{
+    return yylexer.yylex ();
+  }
+  protected final void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s) {
+    yylexer.yyerror (]b4_locations_if([loc, ])[s);
+  }
+
+  ]b4_locations_if([
+  protected final void yyerror (String s) {
+    yylexer.yyerror ((]b4_location_type[)null, s);
+  }
+  protected final void yyerror (]b4_position_type[ loc, String s) {
+    yylexer.yyerror (new ]b4_location_type[ (loc), s);
+  }])
+
+  [protected final void yycdebug (String s) {
+    if (yydebug > 0)
+      yyDebugStream.println (s);
+  }
+
+  private final class YYStack {
+    private int[] stateStack = new int[16];
+    ]b4_locations_if([[private ]b4_location_type[[] locStack = new ]b4_location_type[[16];]])[
+    private ]b4_yystype[[] valueStack = new ]b4_yystype[[16];
+
+    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])[) {
+      height++;
+      if (size == height)
+        {
+	  int[] newStateStack = new int[size * 2];
+	  System.arraycopy (stateStack, 0, newStateStack, 0, height);
+	  stateStack = newStateStack;
+	  ]b4_locations_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;
+
+	  size *= 2;
+	}
+
+      stateStack[height] = state;
+      ]b4_locations_if([[locStack[height] = loc;]])[
+      valueStack[height] = value;
+    }
+
+    public final void pop () {
+      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 + 1, null);
+        ]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height + 1, null);]])[
+      }
+      height -= num;
+    }
+
+    public final int stateAt (int i) {
+      return stateStack[height - i];
+    }
+
+    ]b4_locations_if([[public final ]b4_location_type[ locationAt (int i) {
+      return locStack[height - i];
+    }
+
+    ]])[public final ]b4_yystype[ valueAt (int i) {
+      return valueStack[height - i];
+    }
+
+    // Print the state stack on the debug stream.
+    public void print (java.io.PrintStream out)
+    {
+      out.print ("Stack now");
+
+      for (int i = 0; i <= height; i++)
+        {
+	  out.print (' ');
+	  out.print (stateStack[i]);
+        }
+      out.println ();
+    }
+  }
+
+  /**
+   * Returned by a Bison action in order to stop the parsing process and
+   * return success (<tt>true</tt>).  */
+  public static final int YYACCEPT = 0;
+
+  /**
+   * Returned by a Bison action in order to stop the parsing process and
+   * return failure (<tt>false</tt>).  */
+  public static final int YYABORT = 1;
+
+  /**
+   * Returned by a Bison action in order to start error recovery without
+   * printing an error message.  */
+  public static final int YYERROR = 2;
+
+  // 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;
+  private static final int YYERRLAB1 = 7;
+  private static final int YYRETURN = 8;
+
+  private int yyerrstatus_ = 0;
+
+  /**
+   * Return whether error recovery is being done.  In this state, the parser
+   * reads token until it reaches a known state, and then restarts normal
+   * operation.  */
+  public final boolean recovering ()
+  {
+    return yyerrstatus_ == 0;
+  }
+
+  private int yyaction (int yyn, YYStack yystack, int yylen) ]b4_maybe_throws([b4_throws])[
+  {
+    ]b4_yystype[ yyval;
+    ]b4_locations_if([b4_location_type[ yyloc = yylloc (yystack, yylen);]])[
+
+    /* If YYLEN is nonzero, implement the default value of the action:
+       `$$ = $1'.  Otherwise, use the top of the stack.
+
+       Otherwise, the following line sets YYVAL to garbage.
+       This behavior is undocumented and Bison
+       users should not rely upon it.  */
+    if (yylen > 0)
+      yyval = yystack.valueAt (yylen - 1);
+    else
+      yyval = yystack.valueAt (0);
+
+    yy_reduce_print (yyn, yystack);
+
+    switch (yyn)
+      {
+	]b4_user_actions[
+	default: break;
+      }
+
+    yy_symbol_print ("-> $$ =", yyr1_[yyn], yyval]b4_locations_if([, yyloc])[);
+
+    yystack.pop (yylen);
+    yylen = 0;
+
+    /* Shift the result of the reduction.  */
+    yyn = yyr1_[yyn];
+    int yystate = yypgoto_[yyn - yyntokens_] + yystack.stateAt (0);
+    if (0 <= yystate && yystate <= yylast_
+	&& yycheck_[yystate] == yystack.stateAt (0))
+      yystate = yytable_[yystate];
+    else
+      yystate = yydefgoto_[yyn - yyntokens_];
+
+    yystack.push (yystate, yyval]b4_locations_if([, yyloc])[);
+    return YYNEWSTATE;
+  }
+
+  /* Return YYSTR after stripping away unnecessary quotes and
+     backslashes, so that it's suitable for yyerror.  The heuristic is
+     that double-quoting is unnecessary unless the string contains an
+     apostrophe, a comma, or backslash (other than backslash-backslash).
+     YYSTR is taken from yytname.  */
+  private final String yytnamerr_ (String yystr)
+  {
+    if (yystr.charAt (0) == '"')
+      {
+        StringBuffer yyr = new StringBuffer ();
+        strip_quotes: for (int i = 1; i < yystr.length (); i++)
+          switch (yystr.charAt (i))
+            {
+            case '\'':
+            case ',':
+              break strip_quotes;
+
+            case '\\':
+	      if (yystr.charAt(++i) != '\\')
+                break strip_quotes;
+              /* Fall through.  */
+            default:
+              yyr.append (yystr.charAt (i));
+              break;
+
+            case '"':
+              return yyr.toString ();
+            }
+      }
+    else if (yystr.equals ("$end"))
+      return "end of input";
+
+    return yystr;
+  }
+
+  /*--------------------------------.
+  | Print this symbol on YYOUTPUT.  |
+  `--------------------------------*/
+
+  private void yy_symbol_print (String s, int yytype,
+			         ]b4_yystype[ yyvaluep]dnl
+				 b4_locations_if([, Object yylocationp])[)
+  {
+    if (yydebug > 0)
+    yycdebug (s + (yytype < yyntokens_ ? " token " : " nterm ")
+	      + yytname_[yytype] + " ("]b4_locations_if([
+	      + yylocationp + ": "])[
+	      + (yyvaluep == null ? "(null)" : yyvaluep.toString ()) + ")");
+  }
+
+  /**
+   * Parse input from the scanner that was specified at object construction
+   * time.  Return whether the end of the input was reached successfully.
+   *
+   * @@return <tt>true</tt> if the parsing succeeds.  Note that this does not
+   *          imply that there were no syntax errors.
+   */
+  public boolean parse () ]b4_maybe_throws([b4_list2([b4_lex_throws], [b4_throws])])[
+  {
+    /// Lookahead and lookahead in internal form.
+    int yychar = yyempty_;
+    int yytoken = 0;
+
+    /* State.  */
+    int yyn = 0;
+    int yylen = 0;
+    int yystate = 0;
+
+    YYStack yystack = new YYStack ();
+
+    /* Error handling.  */
+    int yynerrs_ = 0;
+    ]b4_locations_if([/// The location where the error started.
+    ]b4_location_type[ yyerrloc = null;
+
+    /// ]b4_location_type[ of the lookahead.
+    ]b4_location_type[ yylloc = new ]b4_location_type[ (null, null);
+
+    /// @@$.
+    ]b4_location_type[ yyloc;])
+
+    /// Semantic value of the lookahead.
+    b4_yystype[ yylval = null;
+
+    yycdebug ("Starting parse\n");
+    yyerrstatus_ = 0;
+
+]m4_ifdef([b4_initial_action], [
+b4_dollar_pushdef([yylval], [], [yylloc])dnl
+/* User initialization code.  */
+b4_user_initial_action
+b4_dollar_popdef])[]dnl
+
+  [  /* Initialize the stack.  */
+    yystack.push (yystate, yylval]b4_locations_if([, yylloc])[);
+
+    int label = YYNEWSTATE;
+    for (;;)
+      switch (label)
+      {
+        /* New state.  Unlike in the C/C++ skeletons, the state is already
+	   pushed when we come here.  */
+      case YYNEWSTATE:
+        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 (yy_pact_value_is_default_ (yyn))
+          {
+            label = YYDEFAULT;
+	    break;
+          }
+
+        /* Read a lookahead token.  */
+        if (yychar == yyempty_)
+          {
+	    yycdebug ("Reading a token: ");
+	    yychar = yylex ();]
+            b4_locations_if([[
+	    yylloc = new ]b4_location_type[(yylexer.getStartPos (),
+				            yylexer.getEndPos ());]])
+            yylval = yylexer.getLVal ();[
+          }
+
+        /* Convert token to internal form.  */
+        if (yychar <= EOF)
+          {
+	    yychar = yytoken = EOF;
+	    yycdebug ("Now at end of input.\n");
+          }
+        else
+          {
+	    yytoken = yytranslate_ (yychar);
+	    yy_symbol_print ("Next token is", yytoken,
+			     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 (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])[);
+
+            /* 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 = YYERRLAB;
+        else
+          label = YYREDUCE;
+        break;
+
+      /*-----------------------------.
+      | yyreduce -- Do a reduction.  |
+      `-----------------------------*/
+      case YYREDUCE:
+        yylen = yyr2_[yyn];
+        label = yyaction (yyn, yystack, yylen);
+	yystate = yystack.stateAt (0);
+        break;
+
+      /*------------------------------------.
+      | yyerrlab -- here on detecting error |
+      `------------------------------------*/
+      case YYERRLAB:
+        /* If not already recovering from an error, report this error.  */
+        if (yyerrstatus_ == 0)
+          {
+            ++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.  */
+	      if (yychar == EOF)
+	        return false;
+	      }
+	    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.  */
+        yystack.pop (yylen);
+        yylen = 0;
+        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 (!yy_pact_value_is_default_ (yyn))
+	      {
+	        yyn += yyterror_;
+	        if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
+	          {
+	            yyn = yytable_[yyn];
+	            if (0 < yyn)
+		      break;
+	          }
+	      }
+
+	    /* Pop the current state because it cannot handle the error token.  */
+	    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);
+	yystack.push (0, null, yyerrloc);
+        yyloc = yylloc (yystack, 2);
+	yystack.pop (2);])[
+
+        /* 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;
+      }
+  }
+
+  // Generate an error message.
+  private String yysyntax_error (int yystate, int tok)
+  {
+    if (errorVerbose)
+      {
+        /* 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_)
+          {
+            // 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.  */
+  private static final ]b4_int_type_for([b4_pact])[ yypact_ninf_ = ]b4_pact_ninf[;
+  private static final ]b4_int_type_for([b4_pact])[ yypact_[] =
+  {
+    ]b4_pact[
+  };
+
+  /* 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[
+  };
+
+  /* YYPGOTO[NTERM-NUM].  */
+  private static final ]b4_int_type_for([b4_pgoto])[ yypgoto_[] =
+  {
+    ]b4_pgoto[
+  };
+
+  /* YYDEFGOTO[NTERM-NUM].  */
+  private static final ]b4_int_type_for([b4_defgoto])[
+  yydefgoto_[] =
+  {
+    ]b4_defgoto[
+  };
+
+  /* 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 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_[] =
+  {
+    ]b4_table[
+  };
+
+  /* YYCHECK.  */
+  private static final ]b4_int_type_for([b4_check])[
+  yycheck_[] =
+  {
+    ]b4_check[
+  };
+
+  /* STOS_[STATE-NUM] -- The (internal number of the) accessing
+     symbol of state STATE-NUM.  */
+  private static final ]b4_int_type_for([b4_stos])[
+  yystos_[] =
+  {
+    ]b4_stos[
+  };
+
+  /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
+     to YYLEX-NUM.  */
+  private static final ]b4_int_type_for([b4_toknum])[
+  yytoken_number_[] =
+  {
+    ]b4_toknum[
+  };
+
+  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+  private static final ]b4_int_type_for([b4_r1])[
+  yyr1_[] =
+  {
+    ]b4_r1[
+  };
+
+  /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+  private static final ]b4_int_type_for([b4_r2])[
+  yyr2_[] =
+  {
+    ]b4_r2[
+  };
+
+  /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+     First, the terminals, then, starting at \a yyntokens_, nonterminals.  */
+  private static final String yytname_[] =
+  {
+    ]b4_tname[
+  };
+
+  /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
+  private static final ]b4_int_type_for([b4_rhs])[ yyrhs_[] =
+  {
+    ]b4_rhs[
+  };
+
+  /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+     YYRHS.  */
+  private static final ]b4_int_type_for([b4_prhs])[ yyprhs_[] =
+  {
+    ]b4_prhs[
+  };
+
+  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
+  private static final ]b4_int_type_for([b4_rline])[ yyrline_[] =
+  {
+    ]b4_rline[
+  };
+
+  // Report on the debug stream that the rule yyrule is going to be reduced.
+  private void yy_reduce_print (int yyrule, YYStack yystack)
+  {
+    if (yydebug == 0)
+      return;
+
+    int yylno = yyrline_[yyrule];
+    int yynrhs = yyr2_[yyrule];
+    /* Print the symbols being reduced, and their result.  */
+    yycdebug ("Reducing stack by rule " + (yyrule - 1)
+	      + " (line " + yylno + "), ");
+
+    /* The symbols being reduced.  */
+    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_location(yynrhs, yyi + 1)])[);
+  }
+
+  /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+  private static final ]b4_int_type_for([b4_translate])[ yytranslate_table_[] =
+  {
+    ]b4_translate[
+  };
+
+  private static final ]b4_int_type_for([b4_translate])[ yytranslate_ (int t)
+  {
+    if (t >= 0 && t <= yyuser_token_number_max_)
+      return yytranslate_table_[t];
+    else
+      return yyundef_token_;
+  }
+
+  private static final int yylast_ = ]b4_last[;
+  private static final int yynnts_ = ]b4_nterms_number[;
+  private static final int yyempty_ = -2;
+  private static final int yyfinal_ = ]b4_final_state_number[;
+  private static final int yyterror_ = 1;
+  private static final int yyerrcode_ = 256;
+  private static final int yyntokens_ = ]b4_tokens_number[;
+
+  private static final int yyuser_token_number_max_ = ]b4_user_token_number_max[;
+  private static final int yyundef_token_ = ]b4_undef_token_number[;
+
+]/* User implementation code.  */
+b4_percent_code_get[]dnl
+
+}
+
+b4_epilogue
+m4_divert_pop(0)dnl

data/location.cc

@@ -1,85 +1,85 @@
-m4_divert(-1)
-
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 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
+# 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 2 of the License, or
+# 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
-m4_divert(0)dnl
+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[::position class.
+ ** Define the ]b4_namespace_ref[::position class.
  */
 
-#ifndef BISON_POSITION_HH
+]b4_cpp_guard_open([b4_dir_prefix[]position.hh])[
-# define BISON_POSITION_HH
 
-# include <iostream>
+# include <algorithm> // std::max
+# include <iosfwd>
 # include <string>
-# include <algorithm>
 
-namespace ]b4_namespace[
+]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 ()
+    explicit position (]b4_percent_define_get([[filename_type]])[* f = YY_NULL,
-      : filename (0), line (]b4_location_initial_line[), column (]b4_location_initial_column[)
+                       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_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[;
+      line = l;
-      column = ]b4_location_initial_column[;
+      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_filename_type[* filename;
+    ]b4_percent_define_get([[filename_type]])[* filename;
     /// Current line number.
     unsigned int line;
     /// Current column number.
@@ -115,15 +115,16 @@ namespace ]b4_namespace[
   {
     return begin + -width;
   }
-]m4_if(b4_define_location_comparison, [1], [[
+]b4_percent_define_flag_if([[define_location_comparison]], [[
   /// Compare two position objects.
   inline bool
   operator== (const position& pos1, const position& pos2)
   {
-    return
+    return (pos1.line == pos2.line
-      (pos1.filename == pos2.filename
+            && pos1.column == pos2.column
-       || pos1.filename && pos2.filename && *pos1.filename == *pos2.filename)
+            && (pos1.filename == pos2.filename
-      && pos1.line == pos2.line && pos1.column == pos2.column;
+                || (pos1.filename && pos2.filename
+                    && *pos1.filename == *pos2.filename)));
   }
 
   /// Compare two position objects.
@@ -145,43 +146,60 @@ namespace ]b4_namespace[
     return ostr << pos.line << '.' << pos.column;
   }
 
-}
+]b4_namespace_close[
-#endif // not BISON_POSITION_HH]
+]b4_cpp_guard_close([b4_dir_prefix[]position.hh])
-@output b4_dir_prefix[]location.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[::location class.
+ ** Define the ]b4_namespace_ref[::location class.
  */
 
-#ifndef BISON_LOCATION_HH
+]b4_cpp_guard_open([b4_dir_prefix[]location.hh])[
-# define BISON_LOCATION_HH
 
 # include <iostream>
 # include <string>
 # include "position.hh"
 
-namespace ]b4_namespace[
+]b4_namespace_open[
-{
 
   /// Abstract a location.
   class location
   {
   public:
 ]m4_ifdef([b4_location_constructors], [
-    /// Construct a location.
+    /// Construct a location from \a b to \a e.
-    location ()
+    location (const position& b, const position& e)
-      : begin (), end ()
+      : 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_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;
     }
 
@@ -189,19 +207,19 @@ namespace ]b4_namespace[
      ** \{ */
   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);
     }
@@ -237,7 +255,7 @@ namespace ]b4_namespace[
     res.columns (width);
     return res;
   }
-]m4_if(b4_define_location_comparison, [1], [[
+]b4_percent_define_flag_if([[define_location_comparison]], [[
   /// Compare two location objects.
   inline bool
   operator== (const location& loc1, const location& loc2)
@@ -273,8 +291,8 @@ namespace ]b4_namespace[
     return ostr;
   }
 
-}
+]b4_namespace_close[
 
-#endif // not BISON_LOCATION_HH]
+]b4_cpp_guard_close([b4_dir_prefix[]location.hh])
-m4_divert(-1)
+m4_divert_pop(0)
 m4_changecom([#])

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

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    bison.xsl - common templates for Bison XSLT.
+
+    Copyright (C) 2007-2012 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/>.
+  -->
+
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:bison="http://www.gnu.org/software/bison/">
+
+<xsl:key
+  name="bison:symbolByName"
+  match="/bison-xml-report/grammar/nonterminals/nonterminal"
+  use="@name"
+/>
+<xsl:key
+  name="bison:symbolByName"
+  match="/bison-xml-report/grammar/terminals/terminal"
+  use="@name"
+/>
+<xsl:key
+  name="bison:ruleByNumber"
+  match="/bison-xml-report/grammar/rules/rule"
+  use="@number"
+/>
+<xsl:key
+  name="bison:ruleByLhs"
+  match="/bison-xml-report/grammar/rules/rule[
+         @usefulness != 'useless-in-grammar']"
+  use="lhs"
+/>
+<xsl:key
+  name="bison:ruleByRhs"
+  match="/bison-xml-report/grammar/rules/rule[
+         @usefulness != 'useless-in-grammar']"
+  use="rhs/symbol"
+/>
+
+<!-- For the specified state, output: #sr-conflicts,#rr-conflicts -->
+<xsl:template match="state" mode="bison:count-conflicts">
+  <xsl:variable name="transitions" select="actions/transitions"/>
+  <xsl:variable name="reductions" select="actions/reductions"/>
+  <xsl:variable
+    name="terminals"
+    select="
+      $transitions/transition[@type='shift']/@symbol
+      | $reductions/reduction/@symbol
+    "
+  />
+  <xsl:variable name="conflict-data">
+    <xsl:for-each select="$terminals">
+      <xsl:variable name="name" select="."/>
+      <xsl:if test="generate-id($terminals[. = $name][1]) = generate-id(.)">
+        <xsl:variable
+          name="shift-count"
+          select="count($transitions/transition[@symbol=$name])"
+        />
+        <xsl:variable
+          name="reduce-count"
+          select="count($reductions/reduction[@symbol=$name])"
+        />
+        <xsl:if test="$shift-count > 0 and $reduce-count > 0">
+          <xsl:text>s</xsl:text>
+        </xsl:if>
+        <xsl:if test="$reduce-count > 1">
+          <xsl:text>r</xsl:text>
+        </xsl:if>
+      </xsl:if>
+    </xsl:for-each>
+  </xsl:variable>
+  <xsl:value-of select="string-length(translate($conflict-data, 'r', ''))"/>
+  <xsl:text>,</xsl:text>
+  <xsl:value-of select="string-length(translate($conflict-data, 's', ''))"/>
+</xsl:template>
+
+</xsl:stylesheet>

data/xslt/xml2dot.xsl

@@ -0,0 +1,222 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    xml2dot.xsl - transform Bison XML Report into DOT.
+
+    Copyright (C) 2007-2012 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/>.
+
+    Written by Wojciech Polak <polak@gnu.org>.
+  -->
+
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:bison="http://www.gnu.org/software/bison/">
+
+<xsl:import href="bison.xsl"/>
+<xsl:output method="text" encoding="UTF-8" indent="no"/>
+
+<xsl:template match="/">
+  <xsl:apply-templates select="bison-xml-report"/>
+</xsl:template>
+
+<xsl:template match="bison-xml-report">
+  <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:param name="filename"/>
+  <xsl:text>digraph "</xsl:text>
+  <xsl:call-template name="escape">
+    <xsl:with-param name="subject" select="$filename"/>
+  </xsl:call-template>
+  <xsl:text>"&#10;{&#10;</xsl:text>
+  <xsl:apply-templates select="state"/>
+  <xsl:text>}&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="automaton/state">
+  <xsl:call-template name="output-node">
+    <xsl:with-param name="number" select="@number"/>
+    <xsl:with-param name="label">
+      <xsl:value-of select="@number"/>
+      <xsl:apply-templates select="itemset/item"/>
+    </xsl:with-param>
+  </xsl:call-template>
+  <xsl:apply-templates select="actions/transitions"/>
+</xsl:template>
+
+<xsl:template match="actions/transitions">
+  <xsl:apply-templates select="transition"/>
+</xsl:template>
+
+<xsl:template match="item">
+  <xsl:apply-templates select="key('bison:ruleByNumber', @rule-number)">
+    <xsl:with-param name="point" select="@point"/>
+  </xsl:apply-templates>
+  <xsl:apply-templates select="lookaheads"/>
+</xsl:template>
+
+<xsl:template match="rule">
+  <xsl:param name="point"/>
+  <xsl:text>&#10;</xsl:text>
+  <xsl:value-of select="lhs"/>
+  <xsl:text> -&gt;</xsl:text>
+  <xsl:if test="$point = 0">
+    <xsl:text> .</xsl:text>
+  </xsl:if>
+  <xsl:for-each select="rhs/symbol|rhs/empty">
+    <xsl:apply-templates select="."/>
+    <xsl:if test="$point = position()">
+      <xsl:text> .</xsl:text>
+    </xsl:if>
+  </xsl:for-each>
+</xsl:template>
+
+<xsl:template match="symbol">
+  <xsl:text> </xsl:text>
+  <xsl:value-of select="."/>
+</xsl:template>
+
+<xsl:template match="empty"/>
+
+<xsl:template match="lookaheads">
+  <xsl:text>[</xsl:text>
+  <xsl:apply-templates select="symbol"/>
+  <xsl:text>]</xsl:text>
+</xsl:template>
+
+<xsl:template match="lookaheads/symbol">
+  <xsl:value-of select="."/>
+  <xsl:if test="position() != last()">
+    <xsl:text>, </xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="transition">
+  <xsl:call-template name="output-edge">
+    <xsl:with-param name="src" select="../../../@number"/>
+    <xsl:with-param name="dst" select="@state"/>
+    <xsl:with-param name="style">
+      <xsl:choose>
+	<xsl:when test="@symbol = 'error'">
+	  <xsl:text>dotted</xsl:text>
+	</xsl:when>
+	<xsl:when test="@type = 'shift'">
+	  <xsl:text>solid</xsl:text>
+	</xsl:when>
+	<xsl:otherwise>
+	  <xsl:text>dashed</xsl:text>
+	</xsl:otherwise>
+      </xsl:choose>
+    </xsl:with-param>
+    <xsl:with-param name="label">
+      <xsl:if test="not(@symbol = 'error')">
+	<xsl:value-of select="@symbol"/>
+      </xsl:if>
+    </xsl:with-param>
+  </xsl:call-template>
+</xsl:template>
+
+<xsl:template name="output-node">
+  <xsl:param name="number"/>
+  <xsl:param name="label"/>
+  <xsl:text>  </xsl:text>
+  <xsl:value-of select="$number"/>
+  <xsl:text> [label="</xsl:text>
+  <xsl:call-template name="escape">
+    <xsl:with-param name="subject" select="$label"/>
+  </xsl:call-template>
+  <xsl:text>"]&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template name="output-edge">
+  <xsl:param name="src"/>
+  <xsl:param name="dst"/>
+  <xsl:param name="style"/>
+  <xsl:param name="label"/>
+  <xsl:text>  </xsl:text>
+  <xsl:value-of select="$src"/>
+  <xsl:text> -> </xsl:text>
+  <xsl:value-of select="$dst"/>
+  <xsl:text> [style=</xsl:text>
+  <xsl:value-of select="$style"/>
+  <xsl:if test="$label and $label != ''">
+    <xsl:text> label="</xsl:text>
+    <xsl:call-template name="escape">
+      <xsl:with-param name="subject" select="$label"/>
+    </xsl:call-template>
+    <xsl:text>"</xsl:text>
+  </xsl:if>
+  <xsl:text>]&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template name="escape">
+  <xsl:param name="subject"/> <!-- required -->
+  <xsl:call-template name="string-replace">
+    <xsl:with-param name="subject">
+      <xsl:call-template name="string-replace">
+        <xsl:with-param name="subject">
+          <xsl:call-template name="string-replace">
+            <xsl:with-param name="subject" select="$subject"/>
+            <xsl:with-param name="search" select="'\'"/>
+            <xsl:with-param name="replace" select="'\\'"/>
+          </xsl:call-template>
+        </xsl:with-param>
+        <xsl:with-param name="search" select="'&quot;'"/>
+        <xsl:with-param name="replace" select="'\&quot;'"/>
+      </xsl:call-template>
+    </xsl:with-param>
+    <xsl:with-param name="search" select="'&#10;'"/>
+    <xsl:with-param name="replace" select="'\n'"/>
+  </xsl:call-template>
+</xsl:template>
+
+<xsl:template name="string-replace">
+  <xsl:param name="subject"/>
+  <xsl:param name="search"/>
+  <xsl:param name="replace"/>
+  <xsl:choose>
+    <xsl:when test="contains($subject, $search)">
+      <xsl:variable name="before" select="substring-before($subject, $search)"/>
+      <xsl:variable name="after" select="substring-after($subject, $search)"/>
+      <xsl:value-of select="$before"/>
+      <xsl:value-of select="$replace"/>
+      <xsl:call-template name="string-replace">
+        <xsl:with-param name="subject" select="$after"/>
+        <xsl:with-param name="search" select="$search"/>
+        <xsl:with-param name="replace" select="$replace"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="$subject"/>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>

data/xslt/xml2text.xsl

@@ -0,0 +1,581 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    xml2text.xsl - transform Bison XML Report into plain text.
+
+    Copyright (C) 2007-2012 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/>.
+
+    Written by Wojciech Polak <polak@gnu.org>.
+  -->
+
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:bison="http://www.gnu.org/software/bison/">
+
+<xsl:import href="bison.xsl"/>
+<xsl:output method="text" encoding="UTF-8" indent="no"/>
+
+<xsl:template match="/">
+  <xsl:apply-templates select="bison-xml-report"/>
+</xsl:template>
+
+<xsl:template match="bison-xml-report">
+  <xsl:apply-templates select="grammar" mode="reductions"/>
+  <xsl:apply-templates select="grammar" mode="useless-in-parser"/>
+  <xsl:apply-templates select="automaton" mode="conflicts"/>
+  <xsl:apply-templates select="grammar"/>
+  <xsl:apply-templates select="automaton"/>
+</xsl:template>
+
+<xsl:template match="grammar" mode="reductions">
+  <xsl:apply-templates select="nonterminals" mode="useless-in-grammar"/>
+  <xsl:apply-templates select="terminals" mode="unused-in-grammar"/>
+  <xsl:apply-templates select="rules" mode="useless-in-grammar"/>
+</xsl:template>
+
+<xsl:template match="nonterminals" mode="useless-in-grammar">
+  <xsl:if test="nonterminal[@usefulness='useless-in-grammar']">
+    <xsl:text>Nonterminals useless in grammar&#10;&#10;</xsl:text>
+    <xsl:for-each select="nonterminal[@usefulness='useless-in-grammar']">
+      <xsl:text>   </xsl:text>
+      <xsl:value-of select="@name"/>
+      <xsl:text>&#10;</xsl:text>
+    </xsl:for-each>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="terminals" mode="unused-in-grammar">
+  <xsl:if test="terminal[@usefulness='unused-in-grammar']">
+    <xsl:text>Terminals unused in grammar&#10;&#10;</xsl:text>
+    <xsl:for-each select="terminal[@usefulness='unused-in-grammar']">
+      <xsl:sort select="@symbol-number" data-type="number"/>
+      <xsl:text>   </xsl:text>
+      <xsl:value-of select="@name"/>
+      <xsl:text>&#10;</xsl:text>
+    </xsl:for-each>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="rules" mode="useless-in-grammar">
+  <xsl:variable name="set" select="rule[@usefulness='useless-in-grammar']"/>
+  <xsl:if test="$set">
+    <xsl:text>Rules useless in grammar&#10;</xsl:text>
+    <xsl:call-template name="style-rule-set">
+      <xsl:with-param name="rule-set" select="$set"/>
+    </xsl:call-template>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="grammar" mode="useless-in-parser">
+  <xsl:variable
+    name="set" select="rules/rule[@usefulness='useless-in-parser']"
+  />
+  <xsl:if test="$set">
+    <xsl:text>Rules useless in parser due to conflicts&#10;</xsl:text>
+    <xsl:call-template name="style-rule-set">
+      <xsl:with-param name="rule-set" select="$set"/>
+    </xsl:call-template>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="grammar">
+  <xsl:text>Grammar&#10;</xsl:text>
+  <xsl:call-template name="style-rule-set">
+    <xsl:with-param
+      name="rule-set" select="rules/rule[@usefulness!='useless-in-grammar']"
+    />
+  </xsl:call-template>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="terminals"/>
+  <xsl:apply-templates select="nonterminals"/>
+</xsl:template>
+
+<xsl:template name="style-rule-set">
+  <xsl:param name="rule-set"/>
+  <xsl:for-each select="$rule-set">
+    <xsl:apply-templates select=".">
+      <xsl:with-param name="pad" select="'3'"/>
+      <xsl:with-param name="prev-lhs">
+        <xsl:if test="position()>1">
+          <xsl:variable name="position" select="position()"/>
+          <xsl:value-of select="$rule-set[$position - 1]/lhs"/>
+        </xsl:if>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:for-each>
+</xsl:template>
+
+<xsl:template match="grammar/terminals">
+  <xsl:text>Terminals, with rules where they appear&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="terminal"/>
+  <xsl:text>&#10;&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="grammar/nonterminals">
+  <xsl:text>Nonterminals, with rules where they appear&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="nonterminal[@usefulness!='useless-in-grammar']"/>
+</xsl:template>
+
+<xsl:template match="terminal">
+  <xsl:value-of select="@name"/>
+  <xsl:call-template name="line-wrap">
+    <xsl:with-param name="first-line-length">
+      <xsl:choose>
+        <xsl:when test="string-length(@name) &gt; 66">0</xsl:when>
+        <xsl:otherwise>
+          <xsl:value-of select="66 - string-length(@name)" />
+        </xsl:otherwise>
+      </xsl:choose>
+    </xsl:with-param>
+    <xsl:with-param name="line-length" select="66" />
+    <xsl:with-param name="text">
+      <xsl:value-of select="concat(' (', @token-number, ')')"/>
+      <xsl:for-each select="key('bison:ruleByRhs', @name)">
+        <xsl:value-of select="concat(' ', @number)"/>
+      </xsl:for-each>
+    </xsl:with-param>
+  </xsl:call-template>
+</xsl:template>
+
+<xsl:template match="nonterminal">
+  <xsl:value-of select="@name"/>
+  <xsl:value-of select="concat(' (', @symbol-number, ')')"/>
+  <xsl:text>&#10;</xsl:text>
+  <xsl:variable name="output">
+    <xsl:call-template name="line-wrap">
+      <xsl:with-param name="line-length" select="66" />
+      <xsl:with-param name="text">
+        <xsl:text>    </xsl:text>
+        <xsl:if test="key('bison:ruleByLhs', @name)">
+          <xsl:text>on@left:</xsl:text>
+          <xsl:for-each select="key('bison:ruleByLhs', @name)">
+            <xsl:value-of select="concat(' ', @number)"/>
+          </xsl:for-each>
+        </xsl:if>
+        <xsl:if test="key('bison:ruleByRhs', @name)">
+          <xsl:if test="key('bison:ruleByLhs', @name)">
+            <xsl:text>, </xsl:text>
+          </xsl:if>
+          <xsl:text>on@right:</xsl:text>
+          <xsl:for-each select="key('bison:ruleByRhs', @name)">
+            <xsl:value-of select="concat(' ', @number)"/>
+          </xsl:for-each>
+        </xsl:if>
+      </xsl:with-param>
+    </xsl:call-template>
+  </xsl:variable>
+  <xsl:value-of select="translate($output, '@', ' ')" />
+</xsl:template>
+
+<xsl:template match="automaton" mode="conflicts">
+  <xsl:variable name="conflict-report">
+    <xsl:apply-templates select="state" mode="conflicts"/>
+  </xsl:variable>
+  <xsl:if test="string-length($conflict-report) != 0">
+    <xsl:value-of select="$conflict-report"/>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="state" mode="conflicts">
+  <xsl:variable name="conflict-counts">
+    <xsl:apply-templates select="." mode="bison:count-conflicts" />
+  </xsl:variable>
+  <xsl:variable
+    name="sr-count" select="substring-before($conflict-counts, ',')"
+  />
+  <xsl:variable
+    name="rr-count" select="substring-after($conflict-counts, ',')"
+  />
+  <xsl:if test="$sr-count > 0 or $rr-count > 0">
+    <xsl:value-of select="concat('State ', @number, ' conflicts:')"/>
+    <xsl:if test="$sr-count > 0">
+      <xsl:value-of select="concat(' ', $sr-count, ' shift/reduce')"/>
+      <xsl:if test="$rr-count > 0">
+        <xsl:value-of select="(',')"/>
+      </xsl:if>
+    </xsl:if>
+    <xsl:if test="$rr-count > 0">
+      <xsl:value-of select="concat(' ', $rr-count, ' reduce/reduce')"/>
+    </xsl:if>
+    <xsl:value-of select="'&#10;'"/>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="automaton">
+  <xsl:apply-templates select="state">
+    <xsl:with-param name="pad" select="'3'"/>
+  </xsl:apply-templates>
+</xsl:template>
+
+<xsl:template match="automaton/state">
+  <xsl:param name="pad"/>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:text>state </xsl:text>
+  <xsl:value-of select="@number"/>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="itemset/item">
+    <xsl:with-param name="pad" select="$pad"/>
+  </xsl:apply-templates>
+  <xsl:apply-templates select="actions/transitions">
+    <xsl:with-param name="type" select="'shift'"/>
+  </xsl:apply-templates>
+  <xsl:apply-templates select="actions/errors"/>
+  <xsl:apply-templates select="actions/reductions"/>
+  <xsl:apply-templates select="actions/transitions">
+    <xsl:with-param name="type" select="'goto'"/>
+  </xsl:apply-templates>
+  <xsl:apply-templates select="solved-conflicts"/>
+</xsl:template>
+
+<xsl:template match="actions/transitions">
+  <xsl:param name="type"/>
+  <xsl:if test="transition[@type = $type]">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="transition[@type = $type]">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="transition[@type = $type]"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="actions/errors">
+  <xsl:if test="error">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="error">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="error"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="actions/reductions">
+  <xsl:if test="reduction">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="reduction">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="reduction"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="item">
+  <xsl:param name="pad"/>
+  <xsl:param name="prev-rule-number"
+	     select="preceding-sibling::item[1]/@rule-number"/>
+  <xsl:apply-templates
+    select="key('bison:ruleByNumber', current()/@rule-number)"
+  >
+    <xsl:with-param name="itemset" select="'true'"/>
+    <xsl:with-param name="pad" select="$pad"/>
+    <xsl:with-param
+      name="prev-lhs"
+      select="key('bison:ruleByNumber', $prev-rule-number)/lhs[text()]"
+   />
+    <xsl:with-param name="point" select="@point"/>
+    <xsl:with-param name="lookaheads">
+      <xsl:apply-templates select="lookaheads"/>
+    </xsl:with-param>
+  </xsl:apply-templates>
+</xsl:template>
+
+<xsl:template match="rule">
+  <xsl:param name="itemset"/>
+  <xsl:param name="pad"/>
+  <xsl:param name="prev-lhs"/>
+  <xsl:param name="point"/>
+  <xsl:param name="lookaheads"/>
+
+  <xsl:if test="$itemset != 'true' and not($prev-lhs = lhs[text()])">
+    <xsl:text>&#10;</xsl:text>
+  </xsl:if>
+
+  <xsl:text>  </xsl:text>
+  <xsl:call-template name="lpad">
+    <xsl:with-param name="str" select="string(@number)"/>
+    <xsl:with-param name="pad" select="number($pad)"/>
+  </xsl:call-template>
+  <xsl:text> </xsl:text>
+
+  <!-- LHS -->
+  <xsl:choose>
+    <xsl:when test="$itemset != 'true' and $prev-lhs = lhs[text()]">
+      <xsl:call-template name="lpad">
+	<xsl:with-param name="str" select="'|'"/>
+	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:when test="$itemset = 'true' and $prev-lhs = lhs[text()]">
+      <xsl:call-template name="lpad">
+	<xsl:with-param name="str" select="'|'"/>
+	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="lhs"/>
+      <xsl:text>:</xsl:text>
+    </xsl:otherwise>
+  </xsl:choose>
+
+  <!-- RHS -->
+  <xsl:for-each select="rhs/*">
+    <xsl:if test="position() = $point + 1">
+      <xsl:text> .</xsl:text>
+    </xsl:if>
+    <xsl:if test="$itemset = 'true' and name(.) != 'empty'">
+      <xsl:apply-templates select="."/>
+    </xsl:if>
+    <xsl:if test="$itemset != 'true'">
+      <xsl:apply-templates select="."/>
+    </xsl:if>
+    <xsl:if test="position() = last() and position() = $point">
+      <xsl:text> .</xsl:text>
+    </xsl:if>
+  </xsl:for-each>
+  <xsl:if test="$lookaheads">
+    <xsl:value-of select="$lookaheads"/>
+  </xsl:if>
+
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="symbol">
+  <xsl:text> </xsl:text>
+  <xsl:value-of select="."/>
+</xsl:template>
+
+<xsl:template match="empty">
+  <xsl:text> /* empty */</xsl:text>
+</xsl:template>
+
+<xsl:template match="lookaheads">
+  <xsl:text>  [</xsl:text>
+  <xsl:apply-templates select="symbol"/>
+  <xsl:text>]</xsl:text>
+</xsl:template>
+
+<xsl:template match="lookaheads/symbol">
+  <xsl:value-of select="."/>
+  <xsl:if test="position() != last()">
+    <xsl:text>, </xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="transition">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:choose>
+    <xsl:when test="@type = 'shift'">
+      <xsl:text>shift, and go to state </xsl:text>
+      <xsl:value-of select="@state"/>
+    </xsl:when>
+    <xsl:when test="@type = 'goto'">
+      <xsl:text>go to state </xsl:text>
+      <xsl:value-of select="@state"/>
+    </xsl:when>
+  </xsl:choose>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="error">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:text>error</xsl:text>
+  <xsl:text> (</xsl:text>
+  <xsl:value-of select="text()"/>
+  <xsl:text>)</xsl:text>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="reduction">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:if test="@enabled = 'false'">
+    <xsl:text>[</xsl:text>
+  </xsl:if>
+  <xsl:choose>
+    <xsl:when test="@rule = 'accept'">
+      <xsl:text>accept</xsl:text>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:text>reduce using rule </xsl:text>
+      <xsl:value-of select="@rule"/>
+      <xsl:text> (</xsl:text>
+      <xsl:value-of
+	  select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"/>
+      <xsl:text>)</xsl:text>
+    </xsl:otherwise>
+  </xsl:choose>
+  <xsl:if test="@enabled = 'false'">
+    <xsl:text>]</xsl:text>
+  </xsl:if>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="solved-conflicts">
+  <xsl:if test="resolution">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="resolution"/>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="resolution">
+  <xsl:text>    Conflict between rule </xsl:text>
+  <xsl:value-of select="@rule"/>
+  <xsl:text> and token </xsl:text>
+  <xsl:value-of select="@symbol"/>
+  <xsl:text> resolved as </xsl:text>
+  <xsl:if test="@type = 'error'">
+    <xsl:text>an </xsl:text>
+  </xsl:if>
+  <xsl:value-of select="@type"/>
+  <xsl:text> (</xsl:text>
+  <xsl:value-of select="."/>
+  <xsl:text>).&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template name="max-width-symbol">
+  <xsl:param name="node"/>
+  <xsl:variable name="longest">
+    <xsl:for-each select="$node">
+      <xsl:sort data-type="number" select="string-length(@symbol)"
+		order="descending"/>
+      <xsl:if test="position() = 1">
+	<xsl:value-of select="string-length(@symbol)"/>
+      </xsl:if>
+    </xsl:for-each>
+  </xsl:variable>
+  <xsl:value-of select="$longest"/>
+</xsl:template>
+
+<xsl:template name="lpad">
+  <xsl:param name="str" select="''"/>
+  <xsl:param name="pad" select="0"/>
+  <xsl:variable name="diff" select="$pad - string-length($str)" />
+  <xsl:choose>
+    <xsl:when test="$diff &lt; 0">
+      <xsl:value-of select="$str"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:call-template name="space">
+	<xsl:with-param name="repeat" select="$diff"/>
+      </xsl:call-template>
+      <xsl:value-of select="$str"/>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template name="rpad">
+  <xsl:param name="str" select="''"/>
+  <xsl:param name="pad" select="0"/>
+  <xsl:variable name="diff" select="$pad - string-length($str)"/>
+  <xsl:choose>
+    <xsl:when test="$diff &lt; 0">
+      <xsl:value-of select="$str"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="$str"/>
+      <xsl:call-template name="space">
+	<xsl:with-param name="repeat" select="$diff"/>
+      </xsl:call-template>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template name="space">
+  <xsl:param name="repeat">0</xsl:param>
+  <xsl:param name="fill" select="' '"/>
+  <xsl:if test="number($repeat) &gt;= 1">
+    <xsl:call-template name="space">
+      <xsl:with-param name="repeat" select="$repeat - 1"/>
+      <xsl:with-param name="fill" select="$fill"/>
+    </xsl:call-template>
+    <xsl:value-of select="$fill"/>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template name="line-wrap">
+  <xsl:param name="line-length"/> <!-- required -->
+  <xsl:param name="first-line-length" select="$line-length"/>
+  <xsl:param name="text"/> <!-- required -->
+  <xsl:choose>
+    <xsl:when test="normalize-space($text) = ''" />
+    <xsl:when test="string-length($text) &lt;= $first-line-length">
+      <xsl:value-of select="concat($text, '&#10;')" />
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:variable name="break-pos">
+        <xsl:call-template name="ws-search">
+          <xsl:with-param name="text" select="$text" />
+          <xsl:with-param name="start" select="$first-line-length+1" />
+        </xsl:call-template>
+      </xsl:variable>
+      <xsl:value-of select="substring($text, 1, $break-pos - 1)" />
+      <xsl:text>&#10;</xsl:text>
+      <xsl:call-template name="line-wrap">
+        <xsl:with-param name="line-length" select="$line-length" />
+        <xsl:with-param
+          name="text" select="concat('    ', substring($text, $break-pos+1))"
+        />
+      </xsl:call-template>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template name="ws-search">
+  <xsl:param name="text"/> <!-- required -->
+  <xsl:param name="start"/> <!-- required -->
+  <xsl:variable name="search-text" select="substring($text, $start)" />
+  <xsl:choose>
+    <xsl:when test="not(contains($search-text, ' '))">
+      <xsl:value-of select="string-length($text)+1" />
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of
+        select="$start + string-length(substring-before($search-text, ' '))"
+      />
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>

data/xslt/xml2xhtml.xsl

@@ -0,0 +1,745 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    xml2html.xsl - transform Bison XML Report into XHTML.
+
+    Copyright (C) 2007-2012 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/>.
+
+    Written by Wojciech Polak <polak@gnu.org>.
+  -->
+
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns="http://www.w3.org/1999/xhtml"
+  xmlns:bison="http://www.gnu.org/software/bison/">
+
+<xsl:import href="bison.xsl"/>
+
+<xsl:output method="xml" encoding="UTF-8"
+	    doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
+	    doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
+	    indent="yes"/>
+
+<xsl:template match="/">
+  <html>
+    <head>
+      <title>
+	<xsl:value-of select="bison-xml-report/filename"/>
+	<xsl:text> - GNU Bison XML Automaton Report</xsl:text>
+      </title>
+      <style type="text/css"><![CDATA[
+      body {
+        font-family: "Nimbus Sans L", Arial, sans-serif;
+	font-size: 9pt;
+      }
+      a:link {
+	color: #1f00ff;
+	text-decoration: none;
+      }
+      a:visited {
+	color: #1f00ff;
+	text-decoration: none;
+      }
+      a:hover {
+	color: red;
+      }
+      #menu a {
+        text-decoration: underline;
+      }
+      .i {
+        font-style: italic;
+      }
+      .pre {
+        font-family: monospace;
+        white-space: pre;
+      }
+      ol.decimal {
+        list-style-type: decimal;
+      }
+      ol.lower-alpha {
+        list-style-type: lower-alpha;
+      }
+      .point {
+        color: #cc0000;
+      }
+      #footer {
+        margin-top: 3.5em;
+        font-size: 7pt;
+      }
+      ]]></style>
+    </head>
+    <body>
+      <xsl:apply-templates select="bison-xml-report"/>
+      <xsl:text>&#10;&#10;</xsl:text>
+      <div id="footer"><hr />This document was generated using
+      <a href="http://www.gnu.org/software/bison/" title="GNU Bison">
+      GNU Bison <xsl:value-of select="/bison-xml-report/@version"/></a>
+      XML Automaton Report.<br />
+      <!-- default copying notice -->
+      Verbatim copying and distribution of this entire page is
+      permitted in any medium, provided this notice is preserved.</div>
+    </body>
+  </html>
+</xsl:template>
+
+<xsl:template match="bison-xml-report">
+  <h1>GNU Bison XML Automaton Report</h1>
+  <p>
+    input grammar: <span class="i"><xsl:value-of select="filename"/></span>
+  </p>
+
+  <xsl:text>&#10;&#10;</xsl:text>
+  <h3>Table of Contents</h3>
+  <ul id="menu">
+    <li>
+      <a href="#reductions">Reductions</a>
+      <ul class="lower-alpha">
+	<li><a href="#nonterminals_useless_in_grammar">Nonterminals useless in grammar</a></li>
+	<li><a href="#terminals_unused_in_grammar">Terminals unused in grammar</a></li>
+	<li><a href="#rules_useless_in_grammar">Rules useless in grammar</a></li>
+	<xsl:if test="grammar/rules/rule[@usefulness='useless-in-parser']">
+	  <li><a href="#rules_useless_in_parser">Rules useless in parser due to conflicts</a></li>
+	</xsl:if>
+      </ul>
+    </li>
+    <li><a href="#conflicts">Conflicts</a></li>
+    <li>
+      <a href="#grammar">Grammar</a>
+      <ul class="lower-alpha">
+	<li><a href="#grammar">Itemset</a></li>
+	<li><a href="#terminals">Terminal symbols</a></li>
+	<li><a href="#nonterminals">Nonterminal symbols</a></li>
+      </ul>
+    </li>
+    <li><a href="#automaton">Automaton</a></li>
+  </ul>
+  <xsl:apply-templates select="grammar" mode="reductions"/>
+  <xsl:apply-templates select="grammar" mode="useless-in-parser"/>
+  <xsl:apply-templates select="automaton" mode="conflicts"/>
+  <xsl:apply-templates select="grammar"/>
+  <xsl:apply-templates select="automaton"/>
+</xsl:template>
+
+<xsl:template match="grammar" mode="reductions">
+  <h2>
+    <a name="reductions"/>
+    <xsl:text> Reductions</xsl:text>
+  </h2>
+  <xsl:apply-templates select="nonterminals" mode="useless-in-grammar"/>
+  <xsl:apply-templates select="terminals" mode="unused-in-grammar"/>
+  <xsl:apply-templates select="rules" mode="useless-in-grammar"/>
+</xsl:template>
+
+<xsl:template match="nonterminals" mode="useless-in-grammar">
+  <h3>
+    <a name="nonterminals_useless_in_grammar"/>
+    <xsl:text> Nonterminals useless in grammar</xsl:text>
+  </h3>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:if test="nonterminal[@usefulness='useless-in-grammar']">
+    <p class="pre">
+      <xsl:for-each select="nonterminal[@usefulness='useless-in-grammar']">
+	<xsl:text>   </xsl:text>
+	<xsl:value-of select="@name"/>
+	<xsl:text>&#10;</xsl:text>
+      </xsl:for-each>
+      <xsl:text>&#10;&#10;</xsl:text>
+    </p>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="terminals" mode="unused-in-grammar">
+  <h3>
+    <a name="terminals_unused_in_grammar"/>
+    <xsl:text> Terminals unused in grammar</xsl:text>
+  </h3>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:if test="terminal[@usefulness='unused-in-grammar']">
+    <p class="pre">
+      <xsl:for-each select="terminal[@usefulness='unused-in-grammar']">
+        <xsl:sort select="@symbol-number" data-type="number"/>
+	<xsl:text>   </xsl:text>
+	<xsl:value-of select="@name"/>
+	<xsl:text>&#10;</xsl:text>
+      </xsl:for-each>
+      <xsl:text>&#10;&#10;</xsl:text>
+    </p>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="rules" mode="useless-in-grammar">
+  <h3>
+    <a name="rules_useless_in_grammar"/>
+    <xsl:text> Rules useless in grammar</xsl:text>
+  </h3>
+  <xsl:text>&#10;</xsl:text>
+  <xsl:variable name="set" select="rule[@usefulness='useless-in-grammar']"/>
+  <xsl:if test="$set">
+    <p class="pre">
+      <xsl:call-template name="style-rule-set">
+        <xsl:with-param name="rule-set" select="$set"/>
+      </xsl:call-template>
+      <xsl:text>&#10;&#10;</xsl:text>
+    </p>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="grammar" mode="useless-in-parser">
+  <xsl:variable
+    name="set" select="rules/rule[@usefulness='useless-in-parser']"
+  />
+  <xsl:if test="$set">
+    <h2>
+      <a name="rules_useless_in_parser"/>
+      <xsl:text> Rules useless in parser due to conflicts</xsl:text>
+    </h2>
+    <xsl:text>&#10;</xsl:text>
+    <p class="pre">
+      <xsl:call-template name="style-rule-set">
+        <xsl:with-param name="rule-set" select="$set"/>
+      </xsl:call-template>
+    </p>
+    <xsl:text>&#10;&#10;</xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="grammar">
+  <h2>
+    <a name="grammar"/>
+    <xsl:text> Grammar</xsl:text>
+  </h2>
+  <xsl:text>&#10;</xsl:text>
+  <p class="pre">
+    <xsl:call-template name="style-rule-set">
+      <xsl:with-param
+        name="rule-set" select="rules/rule[@usefulness!='useless-in-grammar']"
+      />
+    </xsl:call-template>
+  </p>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:apply-templates select="terminals"/>
+  <xsl:apply-templates select="nonterminals"/>
+</xsl:template>
+
+<xsl:template name="style-rule-set">
+  <xsl:param name="rule-set"/>
+  <xsl:for-each select="$rule-set">
+    <xsl:apply-templates select=".">
+      <xsl:with-param name="pad" select="'3'"/>
+      <xsl:with-param name="prev-lhs">
+        <xsl:if test="position()>1">
+          <xsl:variable name="position" select="position()"/>
+          <xsl:value-of select="$rule-set[$position - 1]/lhs"/>
+        </xsl:if>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:for-each>
+</xsl:template>
+
+<xsl:template match="automaton" mode="conflicts">
+  <h2>
+    <a name="conflicts"/>
+    <xsl:text> Conflicts</xsl:text>
+  </h2>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <xsl:variable name="conflict-report">
+    <xsl:apply-templates select="state" mode="conflicts"/>
+  </xsl:variable>
+  <xsl:if test="string-length($conflict-report) != 0">
+    <p class="pre">
+      <xsl:copy-of select="$conflict-report"/>
+      <xsl:text>&#10;&#10;</xsl:text>
+    </p>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="state" mode="conflicts">
+  <xsl:variable name="conflict-counts">
+    <xsl:apply-templates select="." mode="bison:count-conflicts" />
+  </xsl:variable>
+  <xsl:variable
+    name="sr-count" select="substring-before($conflict-counts, ',')"
+  />
+  <xsl:variable
+    name="rr-count" select="substring-after($conflict-counts, ',')"
+  />
+  <xsl:if test="$sr-count > 0 or $rr-count > 0">
+    <a>
+      <xsl:attribute name="href">
+        <xsl:value-of select="concat('#state_', @number)"/>
+      </xsl:attribute>
+      <xsl:value-of select="concat('State ', @number)"/>
+    </a>
+    <xsl:text> conflicts:</xsl:text>
+    <xsl:if test="$sr-count > 0">
+      <xsl:value-of select="concat(' ', $sr-count, ' shift/reduce')"/>
+      <xsl:if test="$rr-count > 0">
+        <xsl:value-of select="(',')"/>
+      </xsl:if>
+    </xsl:if>
+    <xsl:if test="$rr-count > 0">
+      <xsl:value-of select="concat(' ', $rr-count, ' reduce/reduce')"/>
+    </xsl:if>
+    <xsl:value-of select="'&#10;'"/>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="grammar/terminals">
+  <h3>
+    <a name="terminals"/>
+    <xsl:text> Terminals, with rules where they appear</xsl:text>
+  </h3>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <p class="pre">
+    <xsl:apply-templates select="terminal"/>
+  </p>
+  <xsl:text>&#10;&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="grammar/nonterminals">
+  <h3>
+    <a name="nonterminals"/>
+    <xsl:text> Nonterminals, with rules where they appear</xsl:text>
+  </h3>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <p class="pre">
+    <xsl:apply-templates
+      select="nonterminal[@usefulness!='useless-in-grammar']"
+    />
+  </p>
+</xsl:template>
+
+<xsl:template match="terminal">
+  <b><xsl:value-of select="@name"/></b>
+  <xsl:value-of select="concat(' (', @token-number, ')')"/>
+  <xsl:for-each select="key('bison:ruleByRhs', @name)">
+    <xsl:apply-templates select="." mode="number-link"/>
+  </xsl:for-each>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="nonterminal">
+  <b><xsl:value-of select="@name"/></b>
+  <xsl:value-of select="concat(' (', @symbol-number, ')')"/>
+  <xsl:text>&#10;    </xsl:text>
+  <xsl:if test="key('bison:ruleByLhs', @name)">
+    <xsl:text>on left:</xsl:text>
+    <xsl:for-each select="key('bison:ruleByLhs', @name)">
+      <xsl:apply-templates select="." mode="number-link"/>
+    </xsl:for-each>
+  </xsl:if>
+  <xsl:if test="key('bison:ruleByRhs', @name)">
+    <xsl:if test="key('bison:ruleByLhs', @name)">
+      <xsl:text>&#10;    </xsl:text>
+    </xsl:if>
+    <xsl:text>on right:</xsl:text>
+    <xsl:for-each select="key('bison:ruleByRhs', @name)">
+      <xsl:apply-templates select="." mode="number-link"/>
+    </xsl:for-each>
+  </xsl:if>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="rule" mode="number-link">
+  <xsl:text> </xsl:text>
+  <a>
+    <xsl:attribute name="href">
+      <xsl:value-of select="concat('#rule_', @number)"/>
+    </xsl:attribute>
+    <xsl:value-of select="@number"/>
+  </a>
+</xsl:template>
+
+<xsl:template match="automaton">
+  <h2>
+    <a name="automaton"/>
+    <xsl:text> Automaton</xsl:text>
+  </h2>
+  <xsl:apply-templates select="state">
+    <xsl:with-param name="pad" select="'3'"/>
+  </xsl:apply-templates>
+</xsl:template>
+
+<xsl:template match="automaton/state">
+  <xsl:param name="pad"/>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <h3>
+    <a>
+      <xsl:attribute name="name">
+	<xsl:value-of select="concat('state_', @number)"/>
+      </xsl:attribute>
+    </a>
+    <xsl:text>state </xsl:text>
+    <xsl:value-of select="@number"/>
+  </h3>
+  <xsl:text>&#10;&#10;</xsl:text>
+  <p class="pre">
+    <xsl:apply-templates select="itemset/item">
+      <xsl:with-param name="pad" select="$pad"/>
+    </xsl:apply-templates>
+    <xsl:apply-templates select="actions/transitions">
+      <xsl:with-param name="type" select="'shift'"/>
+    </xsl:apply-templates>
+    <xsl:apply-templates select="actions/errors"/>
+    <xsl:apply-templates select="actions/reductions"/>
+    <xsl:apply-templates select="actions/transitions">
+      <xsl:with-param name="type" select="'goto'"/>
+    </xsl:apply-templates>
+    <xsl:apply-templates select="solved-conflicts"/>
+  </p>
+</xsl:template>
+
+<xsl:template match="actions/transitions">
+  <xsl:param name="type"/>
+  <xsl:if test="transition[@type = $type]">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="transition[@type = $type]">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="transition[@type = $type]"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="actions/errors">
+  <xsl:if test="error">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="error">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="error"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="actions/reductions">
+  <xsl:if test="reduction">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="reduction">
+      <xsl:with-param name="pad">
+	<xsl:call-template name="max-width-symbol">
+	  <xsl:with-param name="node" select="reduction"/>
+	</xsl:call-template>
+      </xsl:with-param>
+    </xsl:apply-templates>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="item">
+  <xsl:param name="pad"/>
+  <xsl:param name="prev-rule-number"
+	     select="preceding-sibling::item[1]/@rule-number"/>
+  <xsl:apply-templates
+    select="key('bison:ruleByNumber', current()/@rule-number)"
+  >
+    <xsl:with-param name="itemset" select="'true'"/>
+    <xsl:with-param name="pad" select="$pad"/>
+    <xsl:with-param name="prev-lhs"
+      select="key('bison:ruleByNumber', $prev-rule-number)/lhs[text()]"
+   />
+    <xsl:with-param name="point" select="@point"/>
+    <xsl:with-param name="lookaheads">
+      <xsl:apply-templates select="lookaheads"/>
+    </xsl:with-param>
+  </xsl:apply-templates>
+</xsl:template>
+
+<xsl:template match="rule">
+  <xsl:param name="itemset"/>
+  <xsl:param name="pad"/>
+  <xsl:param name="prev-lhs"/>
+  <xsl:param name="point"/>
+  <xsl:param name="lookaheads"/>
+
+  <xsl:if test="$itemset != 'true' and not($prev-lhs = lhs[text()])">
+    <xsl:text>&#10;</xsl:text>
+  </xsl:if>
+
+  <xsl:if test="$itemset != 'true'">
+    <a>
+      <xsl:attribute name="name">
+	<xsl:value-of select="concat('rule_', @number)"/>
+      </xsl:attribute>
+    </a>
+  </xsl:if>
+  <xsl:text>  </xsl:text>
+
+  <xsl:choose>
+    <xsl:when test="$itemset = 'true'">
+      <a>
+	<xsl:attribute name="href">
+	  <xsl:value-of select="concat('#rule_', @number)"/>
+	</xsl:attribute>
+	<xsl:call-template name="lpad">
+	  <xsl:with-param name="str" select="string(@number)"/>
+	  <xsl:with-param name="pad" select="number($pad)"/>
+	</xsl:call-template>
+      </a>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:call-template name="lpad">
+	<xsl:with-param name="str" select="string(@number)"/>
+	<xsl:with-param name="pad" select="number($pad)"/>
+      </xsl:call-template>
+    </xsl:otherwise>
+  </xsl:choose>
+  <xsl:text> </xsl:text>
+
+  <!-- LHS -->
+  <xsl:choose>
+    <xsl:when test="$itemset != 'true' and $prev-lhs = lhs[text()]">
+      <xsl:call-template name="lpad">
+	<xsl:with-param name="str" select="'|'"/>
+	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 2"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:when test="$itemset = 'true' and $prev-lhs = lhs[text()]">
+      <xsl:call-template name="lpad">
+	<xsl:with-param name="str" select="'|'"/>
+	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 2"/>
+      </xsl:call-template>
+    </xsl:when>
+    <xsl:otherwise>
+      <span class="i">
+	<xsl:value-of select="lhs"/>
+      </span>
+      <xsl:text> &#8594;</xsl:text>
+    </xsl:otherwise>
+  </xsl:choose>
+
+  <!-- RHS -->
+  <xsl:for-each select="rhs/*">
+    <xsl:if test="position() = $point + 1">
+      <xsl:text> </xsl:text>
+      <span class="point">.</span>
+    </xsl:if>
+    <xsl:if test="$itemset = 'true' and name(.) != 'empty'">
+      <xsl:apply-templates select="."/>
+    </xsl:if>
+    <xsl:if test="$itemset != 'true'">
+      <xsl:apply-templates select="."/>
+    </xsl:if>
+    <xsl:if test="position() = last() and position() = $point">
+      <xsl:text> </xsl:text>
+      <span class="point">.</span>
+    </xsl:if>
+  </xsl:for-each>
+  <xsl:if test="$lookaheads">
+    <xsl:value-of select="$lookaheads"/>
+  </xsl:if>
+
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="symbol">
+  <xsl:text> </xsl:text>
+  <xsl:choose>
+    <xsl:when test="name(key('bison:symbolByName', .)) = 'nonterminal'">
+      <span class="i"><xsl:value-of select="."/></span>
+    </xsl:when>
+    <xsl:otherwise>
+      <b><xsl:value-of select="."/></b>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template match="empty">
+  <xsl:text> &#949;</xsl:text>
+</xsl:template>
+
+<xsl:template match="lookaheads">
+  <xsl:text>  [</xsl:text>
+  <xsl:apply-templates select="symbol"/>
+  <xsl:text>]</xsl:text>
+</xsl:template>
+
+<xsl:template match="lookaheads/symbol">
+  <xsl:value-of select="."/>
+  <xsl:if test="position() != last()">
+    <xsl:text>, </xsl:text>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="transition">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:choose>
+    <xsl:when test="@type = 'shift'">
+      <a>
+	<xsl:attribute name="href">
+	  <xsl:value-of select="concat('#state_', @state)"/>
+	</xsl:attribute>
+	<xsl:value-of select="concat('shift, and go to state ', @state)"/>
+      </a>
+    </xsl:when>
+    <xsl:when test="@type = 'goto'">
+      <a>
+	<xsl:attribute name="href">
+	  <xsl:value-of select="concat('#state_', @state)"/>
+	</xsl:attribute>
+	<xsl:value-of select="concat('go to state ', @state)"/>
+      </a>
+    </xsl:when>
+  </xsl:choose>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="error">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:text>error</xsl:text>
+  <xsl:text> (</xsl:text>
+  <xsl:value-of select="text()"/>
+  <xsl:text>)</xsl:text>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="reduction">
+  <xsl:param name="pad"/>
+  <xsl:text>    </xsl:text>
+  <xsl:call-template name="rpad">
+    <xsl:with-param name="str" select="string(@symbol)"/>
+    <xsl:with-param name="pad" select="number($pad) + 2"/>
+  </xsl:call-template>
+  <xsl:if test="@enabled = 'false'">
+    <xsl:text>[</xsl:text>
+  </xsl:if>
+  <xsl:choose>
+    <xsl:when test="@rule = 'accept'">
+      <xsl:text>accept</xsl:text>
+    </xsl:when>
+    <xsl:otherwise>
+      <a>
+	<xsl:attribute name="href">
+	  <xsl:value-of select="concat('#rule_', @rule)"/>
+	</xsl:attribute>
+	<xsl:value-of select="concat('reduce using rule ', @rule)"/>
+      </a>
+      <xsl:text> (</xsl:text>
+      <xsl:value-of
+        select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"
+      />
+      <xsl:text>)</xsl:text>
+    </xsl:otherwise>
+  </xsl:choose>
+  <xsl:if test="@enabled = 'false'">
+    <xsl:text>]</xsl:text>
+  </xsl:if>
+  <xsl:text>&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template match="solved-conflicts">
+  <xsl:if test="resolution">
+    <xsl:text>&#10;</xsl:text>
+    <xsl:apply-templates select="resolution"/>
+  </xsl:if>
+</xsl:template>
+
+<xsl:template match="resolution">
+  <xsl:text>    Conflict between </xsl:text>
+  <a>
+    <xsl:attribute name="href">
+      <xsl:value-of select="concat('#rule_', @rule)"/>
+    </xsl:attribute>
+    <xsl:value-of select="concat('rule ',@rule)"/>
+  </a>
+  <xsl:text> and token </xsl:text>
+  <xsl:value-of select="@symbol"/>
+  <xsl:text> resolved as </xsl:text>
+  <xsl:if test="@type = 'error'">
+    <xsl:text>an </xsl:text>
+  </xsl:if>
+  <xsl:value-of select="@type"/>
+  <xsl:text> (</xsl:text>
+  <xsl:value-of select="."/>
+  <xsl:text>).&#10;</xsl:text>
+</xsl:template>
+
+<xsl:template name="max-width-symbol">
+  <xsl:param name="node"/>
+  <xsl:variable name="longest">
+    <xsl:for-each select="$node">
+      <xsl:sort data-type="number" select="string-length(@symbol)"
+		order="descending"/>
+      <xsl:if test="position() = 1">
+	<xsl:value-of select="string-length(@symbol)"/>
+      </xsl:if>
+    </xsl:for-each>
+  </xsl:variable>
+  <xsl:value-of select="$longest"/>
+</xsl:template>
+
+<xsl:template name="lpad">
+  <xsl:param name="str" select="''"/>
+  <xsl:param name="pad" select="0"/>
+  <xsl:variable name="diff" select="$pad - string-length($str)" />
+  <xsl:choose>
+    <xsl:when test="$diff &lt; 0">
+      <xsl:value-of select="$str"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:call-template name="space">
+	<xsl:with-param name="repeat" select="$diff"/>
+      </xsl:call-template>
+      <xsl:value-of select="$str"/>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template name="rpad">
+  <xsl:param name="str" select="''"/>
+  <xsl:param name="pad" select="0"/>
+  <xsl:variable name="diff" select="$pad - string-length($str)"/>
+  <xsl:choose>
+    <xsl:when test="$diff &lt; 0">
+      <xsl:value-of select="$str"/>
+    </xsl:when>
+    <xsl:otherwise>
+      <xsl:value-of select="$str"/>
+      <xsl:call-template name="space">
+	<xsl:with-param name="repeat" select="$diff"/>
+      </xsl:call-template>
+    </xsl:otherwise>
+  </xsl:choose>
+</xsl:template>
+
+<xsl:template name="space">
+  <xsl:param name="repeat">0</xsl:param>
+  <xsl:param name="fill" select="' '"/>
+  <xsl:if test="number($repeat) &gt;= 1">
+    <xsl:call-template name="space">
+      <xsl:with-param name="repeat" select="$repeat - 1"/>
+      <xsl:with-param name="fill" select="$fill"/>
+    </xsl:call-template>
+    <xsl:value-of select="$fill"/>
+  </xsl:if>
+</xsl:template>
+
+</xsl:stylesheet>

djgpp/Makefile.maint

@@ -1,21 +1,20 @@
 # DJGPP Maintainer's Makefile                                    -*-Makefile-*-
 # Requires GNU sed
 
-## Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+## Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-## This program is free software; you can redistribute it and/or modify
+# 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
+# it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2, or (at your option)
+# the Free Software Foundation, either version 3 of the License, or
-## any later version.
+# (at your option) any later version.
-
+#
-## This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
+# GNU General Public License for more details.
-
+#
-## You should have received a copy of the GNU General Public License
+# You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software Foundation,
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 top_srcdir = ..
 srcdir = .

djgpp/README.in

@@ -1,11 +1,11 @@
 This is a port of GNU Bison @VERSION@ to MSDOS/DJGPP.
 
-Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-This program is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(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
@@ -13,8 +13,7 @@ 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, write to the Free Software Foundation,
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 
 1.:     DJGPP specific changes.
@@ -46,8 +45,13 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 	This is done by forking and using pipes for the IPC.  MSDOS does not
 	support this functionality so this has been reproduced in the usual
 	way by redirecting stdin and stdout of bison and m4 to temporary files
-	and processing these files in sequence.  All the changes to the sources
+	and processing these files in sequence.
-	are documented in the djgpp/diffs file.
+	It should be noticed that due to the great amount of file names that do
+	not cleanly map to 8.3 file names, you will need an OS with LFN support
+	to configure and compile the sources. On Win98 this implies that the
+	generation of numeric tails for 8.3 file name aliases must be enabled
+	or the compilation will fail.
+
 
 	Please **read** the docs.
 
@@ -80,7 +84,7 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 	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
@@ -113,22 +117,19 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 3.3.:   To build the binaries you will need the following binary packages:
 	  djdev203.zip (or a later but NOT a prior version)
 	  bsh204b.zip  (or a later but NOT a prior version)
-	  gcc410b.zip, gpp410b.zip, bnu2161b.zip, mak3791b.zip,
+          gccNNNb.zip, gppNNN.zip, bnuNNNb.zip, makNNNb.zip, filNNNb.zip,
-	  fil40b.zip, shl20jb.zip, txt20b.zip,
+          perlNNNb.zip, shlNNNb.zip, txtNNNb.zip, txiNNNb.zip, grepNNNb.zip,
-	  txi48b.zip, grep24b.zip, sed415b.zip,
+          sedNNNb.zip and m4NNN.zip
-	  m4-144b.zip.
 
 	If you want to run the check you will need also:
-	  dif287b.zip
+	  difNNNb.zip
 
-	All this packages can be found in the v2gnu directory of any
+	NNN represents the latest version number of the binary packages. All
+	this packages can be found in the /v2gnu directory of any
 	ftp.delorie.com mirror.
 	You will need bsh204b.zip or later and *NOT* a prior version or
 	the build will fail.  The same applies to djdev203.zip.  Please note
-	that Bison requires m4-144b.zip or later to work properly.  All the
+	that Bison requires m4-144b.zip or later to work properly.
-	other packages are the ones I have used to build the binaries
-	from this source.  Previuos versions of this packages may do the
-	job as well but I have not tested this.
 
 3.4.:   If for some reason you want to reconfigure the package cd into the top
 	srcdir (bison-@TREE_VERSION@) and run the following commands:
@@ -178,7 +179,7 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 	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

@@ -4,21 +4,20 @@ 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 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 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
-Rem the Free Software Foundation; either version 2, or (at your option)
+Rem the Free Software Foundation, either version 3 of the License, or
-Rem any later version.
+Rem (at your option) any later version.
-
+Rem
 Rem This program is distributed in the hope that it will be useful,
 Rem but WITHOUT ANY WARRANTY; without even the implied warranty of
 Rem MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 Rem GNU General Public License for more details.
-
+Rem
 Rem You should have received a copy of the GNU General Public License
-Rem along with this program; if not, write to the Free Software Foundation,
+Rem along with this program.  If not, see <http://www.gnu.org/licenses/>.
-Rem Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 echo Configuring Bison for DJGPP v2.x...
 
@@ -143,17 +142,17 @@ shift
 if not "%1" == "" goto ArgLoop
 
 Rem Create an arguments file for the configure script.
-echo --srcdir=%XSRC% > arguments
+echo --srcdir=%XSRC% > args
-if "%CACHING%" == "enabled"              echo --cache-file=%XSRC%/djgpp/config.cache >> arguments
+if "%CACHING%" == "enabled"              echo --cache-file=%XSRC%/djgpp/config.cache >> args
-if "%DEPENDENCY_TRACKING%" == "enabled"  echo --enable-dependency-tracking >> arguments
+if "%DEPENDENCY_TRACKING%" == "enabled"  echo --enable-dependency-tracking >> args
-if "%DEPENDENCY_TRACKING%" == "disabled" echo --disable-dependency-tracking >> arguments
+if "%DEPENDENCY_TRACKING%" == "disabled" echo --disable-dependency-tracking >> args
-if "%LIBICONV_PREFIX%" == "enabled"      echo --with-libiconv-prefix >> arguments
+if "%LIBICONV_PREFIX%" == "enabled"      echo --with-libiconv-prefix >> args
-if "%LIBICONV_PREFIX%" == "disabled"     echo --without-libiconv-prefix >> arguments
+if "%LIBICONV_PREFIX%" == "disabled"     echo --without-libiconv-prefix >> args
-if "%LIBINTL_PREFIX%" == "enabled"       echo --with-libintl-prefix >> arguments
+if "%LIBINTL_PREFIX%" == "enabled"       echo --with-libintl-prefix >> args
-if "%LIBINTL_PREFIX%" == "disabled"      echo --without-libintl-prefix >> arguments
+if "%LIBINTL_PREFIX%" == "disabled"      echo --without-libintl-prefix >> args
-if "%HTML%" == "enabled"                 echo --enable-html >> arguments
+if "%HTML%" == "enabled"                 echo --enable-html >> args
-if "%HTML%" == "disabled"                echo --disable-html >> arguments
+if "%HTML%" == "disabled"                echo --disable-html >> args
-if not "%ARGS%" == ""                    echo %ARGS% >> arguments
+if not "%ARGS%" == ""                    echo %ARGS% >> args
 set ARGS=
 set CACHING=
 set DEPENDENCY_TRACKING=
@@ -164,22 +163,26 @@ set HTML=
 if "%XSRC%" == "." goto InPlace
 
 :NotInPlace
-redir -e /dev/null update %XSRC%/configure.orig ./configure
+redir -e /dev/null update %XSRC%/configure.org ./configure
 test -f ./configure
 if errorlevel 1 update %XSRC%/configure ./configure
 
 :InPlace
 Rem Update configuration files
 echo Updating configuration scripts...
-test -f ./configure.orig
+test -f ./configure.org
-if errorlevel 1 update configure configure.orig
+if errorlevel 1 update configure configure.org
-sed -f %XSRC%/djgpp/config.sed configure.orig > configure
+sed -f %XSRC%/djgpp/config.sed configure.org > configure
 if errorlevel 1 goto SedError
 
 Rem Make sure they have a config.site file
 set CONFIG_SITE=%XSRC%/djgpp/config.site
 if not "%CONFIG_SITE%" == "%XSRC%/djgpp/config.site" goto SmallEnv
 
+Rem inttypes_.h and inttypes.h map to the same 8.3 alias.
+test -f %XSRC%/lib/inttypes_.h
+if not errorlevel 1 mv -f %XSRC%/lib/inttypes_.h %XSRC%/lib/_inttypes.h
+
 Rem Make sure crucial file names are not munged by unpacking
 test -f %XSRC%/po/Makefile.in.in
 if not errorlevel 1 mv -f %XSRC%/po/Makefile.in.in %XSRC%/po/Makefile.in-in
@@ -205,6 +208,51 @@ test -f %XSRC%/data/c++.m4
 if not errorlevel 1 mv -f %XSRC%/data/c++.m4 %XSRC%/data/cxx.m4
 test -f %XSRC%/data/cxx.m4
 if errorlevel 1 mv -f %XSRC%/data/cpp.m4 %XSRC%/data/cxx.m4
+test -f %XSRC%/data/c++-skel.m4
+if not errorlevel 1 mv -f %XSRC%/data/c++-skel.m4 %XSRC%/data/cxx-skel.m4
+test -f %XSRC%/data/cxx-skel.m4
+if errorlevel 1 mv -f %XSRC%/data/cpp-skel.m4 %XSRC%/data/cxx-skel.m4
+test -f %XSRC%/build-aux/javacomp.sh.in
+if not errorlevel 1 mv -f %XSRC%/build-aux/javacomp.sh.in %XSRC%/build-aux/javacomp.sh-in
+test -f %XSRC%/build-aux/javacomp.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javacomp.sh %XSRC%/build-aux/javacomp.sh-in
+test -f %XSRC%/build-aux/javacomp.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javacomp.shin %XSRC%/build-aux/javacomp.sh-in
+test -f %XSRC%/build-aux/javacomp.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javacomp.sh_in %XSRC%/build-aux/javacomp.sh-in
+test -f %XSRC%/build-aux/javacomp.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javacomp.sh.in %XSRC%/build-aux/javacomp.sh-in
+test -f %XSRC%/build-aux/javaexec.sh.in
+if not errorlevel 1 mv -f %XSRC%/build-aux/javaexec.sh.in %XSRC%/build-aux/javaexec.sh-in
+test -f %XSRC%/build-aux/javaexec.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javaexec.sh %XSRC%/build-aux/javaexec.sh-in
+test -f %XSRC%/build-aux/javaexec.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javaexec.shin %XSRC%/build-aux/javaexec.sh-in
+test -f %XSRC%/build-aux/javaexec.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javaexec.sh_in %XSRC%/build-aux/javaexec.sh-in
+test -f %XSRC%/build-aux/javaexec.sh-in
+if errorlevel 1 mv -f %XSRC%/build-aux/javaexec_sh.in %XSRC%/build-aux/javaexec.sh-in
+test -f %XSRC%/doc/yacc.1.in
+if not errorlevel 1 mv -f %XSRC%/doc/yacc.1.in %XSRC%/doc/yacc.1-in
+test -f %XSRC%/doc/yacc.1-in
+if errorlevel 1 mv -f %XSRC%/doc/yacc.1 %XSRC%/doc/yacc.1-in
+test -f %XSRC%/doc/yacc.1-in
+if errorlevel 1 mv -f %XSRC%/doc/yacc.1in %XSRC%/doc/yacc.1-in
+test -f %XSRC%/doc/yacc.1-in
+if errorlevel 1 mv -f %XSRC%/doc/yacc.1_in %XSRC%/doc/yacc.1-in
+test -f %XSRC%/doc/yacc.1-in
+if errorlevel 1 mv -f %XSRC%/doc/yacc_1.in %XSRC%/doc/yacc.1-in
+test -f %XSRC%/etc/bench.pl.in
+if not errorlevel 1 mv -f %XSRC%/etc/bench.pl.in %XSRC%/etc/bench.pl-in
+test -f %XSRC%/etc/bench.pl-in
+if errorlevel 1 mv -f %XSRC%/etc/bench.pl %XSRC%/etc/bench.pl-in
+test -f %XSRC%/etc/bench.pl-in
+if errorlevel 1 mv -f %XSRC%/etc/bench.plin %XSRC%/etc/bench.pl-in
+test -f %XSRC%/etc/bench.pl-in
+if errorlevel 1 mv -f %XSRC%/etc/bench.pl_in %XSRC%/etc/bench.pl-in
+test -f %XSRC%/etc/bench.pl-in
+if errorlevel 1 mv -f %XSRC%/etc/bench_pl.in %XSRC%/etc/bench.pl-in
+
 :scan_gram_c_Test
 test -f %XSRC%/src/c-scan-gram.c
 if not errorlevel 1 goto scan_skel_c_Test
@@ -222,25 +270,36 @@ sed "s/c++\.m4/cxx.m4/" %XSRC%/data/lalr1.cc > lalr1.cc
 if errorlevel 1 goto lalr1_ccFileError
 mv ./lalr1.cc %XSRC%/data/lalr1.cc
 sed "s/c++\.m4/cxx.m4/" %XSRC%/data/location.cc > location.cc
-if errorlevel 1 goto location.ccFileError
+if errorlevel 1 goto location_ccFileError
 mv ./location.cc %XSRC%/data/location.cc
 sed "s/c++\.m4/cxx.m4/" %XSRC%/data/glr.cc > glr.cc
-if errorlevel 1 goto glr.ccFileError
+if errorlevel 1 goto glr_ccFileError
 mv ./glr.cc %XSRC%/data/glr.cc
 
+Rem Fix src/getargs.c to reflect the renaming of c++-skel.m4
+sed "s/c++-skel\.m4/cxx-skel.m4/" %XSRC%/src/getargs.c > getargs.c
+if errorlevel 1 goto getargs_cFileError
+mv ./getargs.c %XSRC%/src/getargs.c
+
 Rem Define DJGPP specific defs in config.hin
 echo Editing config.hin...
-test -f %XSRC%/config_h.orig
+test -f %XSRC%/lib/config_h.org
-if errorlevel 1 update %XSRC%/config.hin %XSRC%/config_h.orig
+if errorlevel 1 update %XSRC%/lib/config.hin %XSRC%/lib/config_h.org
-sed -f %XSRC%/djgpp/config_h.sed %XSRC%/config_h.orig > config.hin
+sed -f %XSRC%/djgpp/config_h.sed %XSRC%/lib/config_h.org > config.hin
 if errorlevel 1 goto SedError2
-mv -f config.hin %XSRC%/config.hin
+mv -f config.hin %XSRC%/lib/config.hin
 
 
 Rem Fixing ilicit testsuite file name.
 test -f %XSRC%/tests/c++.at
 if not errorlevel 1 mv -f %XSRC%/tests/c++.at %XSRC%/tests/cxx.at
 
+test -f %XSRC%/tests/testsuite.org
+if errorlevel 1 update %XSRC%/tests/testsuite %XSRC%/tests/testsuite.org
+sed -f %XSRC%/djgpp/testsuite.sed %XSRC%/tests/testsuite.org > testsuite.tmp
+if errorlevel 1 goto SedError3
+mv -f ./testsuite.tmp %XSRC%/tests/testsuite
+
 Rem Fixing ilicit calc++ file names in the calc++ directory.
 test -d %XSRC%/examples/calc++
 if not errorlevel 1 mv -f %XSRC%/examples/calc++ %XSRC%/examples/calcxx
@@ -412,21 +471,21 @@ 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 >> arguments
+echo --enable-nls --without-included-gettext >> args
 goto ConfigurePackage
 
 :MissingNLSTools
 echo Needed libs/tools for NLS not found. Configuring without NLS.
 :WithoutNLS
 Rem Update the arguments file for the configure script.
-echo --disable-nls >> arguments
+echo --disable-nls >> args
 
 :ConfigurePackage
 echo Running the ./configure script...
-sh ./configure @arguments
+sh ./configure @args
 if errorlevel 1 goto CfgError
-rm arguments
+rm args
 echo Done.
 goto End
 
@@ -438,6 +497,10 @@ goto End
 echo ./data/glr.cc file editing failed!
 goto End
 
+:getargs_cFileError
+echo ./src/getargs.c file editing failed!
+goto End
+
 :location_ccFileError
 echo ./data/location.cc file editing failed!
 goto End
@@ -455,7 +518,11 @@ echo ./configure script editing failed!
 goto End
 
 :SedError2
-echo ./config.hin editing failed!
+echo ./lib/config.hin editing failed!
+goto End
+
+:SedError3
+echo ./tests/testsuite editing failed!
 goto End
 
 :CfgError

djgpp/config.sed

@@ -1,77 +1,96 @@
 # DJGPP specific configuration file.
 # Sed script for additional DJGPP specific editing
-# of the configure script generated by autoconf 2.57.
+# of the configure script generated by autoconf 2.62.
 
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# This program is free software: you can redistribute it and/or modify
-
-# 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 2 of the License, or
+# 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, write to the Free Software Foundation,
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
 
 # Additional editing of Makefiles
-/(echo[	 ]*':t/ a\
+/^eval sed.*ac_file_inputs.*tmp\/out \\$/ {
+:loop
+n
+/^$/!b loop
+a\
+cat > "$tmp/subs-djgpp.sed" << eof_djgpp\
 # DJGPP specific Makefile changes.\
-  /^aliaspath *	*=/s,:,";",g;t t\
+s,\\.deps,_deps,g\
-  /TEXINPUTS=/s,:,";",g;t t\
+s,\\.libs,_libs,g\
-  /PATH=/s,:,";",g;t t\
+s,\\.new\\.,_new.,g\
-  s,\\.deps,_deps,g;t t\
+s,\\.old\\.,_old.,g\
-  s,\\.new\\.,_new.,g;t t\
+s,\\.tab\\.,_tab.,g\
-  s,\\.old\\.,_old.,g;t t\
+s,c++\\.at,cxx.at,g\
-  s,c++\\.at,cxx.at,g;t t\
+s,c++\\.m4,cxx.m4,g\
-  s,c++\\.m4,cxx.m4,g;t t\
+s,c++-skel\\.m4,cxx-skel.m4,g\
-  s,calc++,calcxx,g;t t\
+s,calc++,calcxx,g\
-  s,scan-gram-c,c-scan-gram,g;t t\
+s,scan-gram-c,c-scan-gram,g\
-  s,scan-skel-c,c-scan-skel,g;t t\
+s,scan-skel-c,c-scan-skel,g\
-  s,Makefile\\.in\\.in,Makefile.in-in,g;t t\
+s,inttypes_,_inttypes,g\
-  s,Makefile\\.am\\.in,Makefile.am-in,g;t t\
+s,javacomp\\.sh\\.in,javacomp.sh-in,g\
-  s,(MAKEINFOFLAGS),& --no-split,\
+s,javaexec\\.sh\\.in,javaexec.sh-in,g\
-  /^install-info-am:/,/^$/ {\
+s,yacc\\.1\\.in,yacc.1-in,g\
-    /@list=/ s,\\\$(INFO_DEPS),& bison.i,\
+s,bench\\.pl\\.in,bench.pl-in,g\
-    /@for *file/ s,\\\$(INFO_DEPS),& bison.i,\
+s,Makefile\\.am\\.in,Makefile.am-in,g\
-    s,file-\\[0-9\\]\\[0-9\\],& \\$\\$file[0-9] \\$\\$file[0-9][0-9],\
+s,Makefile\\.in\\.in,Makefile.in-in,g\
-  }\
+/^\\.y\\.c:/,/^$/ {\
-  /^\\.y\\.c:/,/^$/ {\
+  /\\\$(YACCCOMPILE)/ {\
-    /\\\$(YACCCOMPILE)/ {\
+    a\\\\\\
-      a\\\\
+	-@test -f y.tab.c && mv -f y.tab.c y_tab.c\\\\\
-	-@test -f y.tab.c && mv -f y.tab.c y_tab.c\\\
 	-@test -f y.tab.h && mv -f y.tab.h y_tab.h\
-    }\
   }\
-/^libbison.a:/ i\\\\
+}\
-\\\$(top_srcdir)/djgpp/subpipe.c: \\$(top_srcdir)/djgpp/subpipe.h\\\
+/^libbison.a:/ i\\\\\\
-subpipe.o: \\$(top_srcdir)/djgpp/subpipe.c \\$(top_srcdir)/djgpp/subpipe.h\\\
+\\\$(top_srcdir)/djgpp/subpipe.c: \\$(top_srcdir)/djgpp/subpipe.h\\\\\
+subpipe.o: \\$(top_srcdir)/djgpp/subpipe.c \\$(top_srcdir)/djgpp/subpipe.h\\\\\
 	\\\$(COMPILE) -c \\$<\
-/^yacc:/ i\\\\
+/^yacc:/ i\\\\\\
-yacc.bat:\\\
+yacc.bat:\\\\\
 	echo "bison\\$(EXEEXT) -y %1 %2 %3 %4 %5 %6 %7 %8 %9" >\\$@\
 /^bin_SCRIPTS =/s/$/ yacc.bat/\
-/^MOSTLYCLEANFILES = yacc/s/$/ yacc.bat/
+/^MOSTLYCLEANFILES = yacc/s/$/ yacc.bat/\
-
+/cross-options.texi:/,/^$/ s|bison|&.exe|g\
+/^\\.x\\.1:/,/^$/ s|\\$program|&.exe|g\
+eof_djgpp\
+sed -f "\$tmp/subs-djgpp.sed" \$tmp/out > \$tmp/out.djgpp\
+mv -f \$tmp/out.djgpp \$tmp/out
+}
 
 # Makefile.in.in is renamed to Makefile.in-in.
-/ac_config_files=/,/_ACEOF/ {
+/ac_config_files=/ {
-  s|po/Makefile\.in|&:po/Makefile.in-in|
+  /runtime-po/!s|po/Makefile\.in|&:po/Makefile.in-in|
+  s|runtime-po/Makefile\.in|&:runtime-po/Makefile.in-in|
+  s|javacomp\.sh\.in|javacomp.sh-in|
+  s|javaexec\.sh\.in|javaexec.sh-in|
+  s|doc/yacc\.1|&:doc/yacc.1-in|
+  s|etc/bench.pl|&:etc/bench.pl-in|
+}
+
+/CONFIG_FILES=/ {
+  /runtime-po/!s|po/Makefile\.in|&:po/Makefile.in-in|2
+  s|runtime-po/Makefile\.in|&:runtime-po/Makefile.in-in|2
+  s|javacomp\.sh\.in|javacomp.sh-in|
+  s|javaexec\.sh\.in|javaexec.sh-in|
+  s|doc/yacc\.1|&:doc/yacc.1-in|2
+  s|etc/bench\.pl|&:etc/bench.pl-in|2
 }
-/CONFIG_FILES=/ s|po/Makefile\.in|&:po/Makefile.in-in|2
 
 # We always use _deps and _libs instead of .deps and .libs, because
 # the latter is an invalid name on 8+3 MS-DOS file system.  This makes
 # the generated Makefiles good for every DJGPP installation, not only
 # the one where the package was configured (which could happen to be
 # a Windows box, where leading dots in file names are allowed).
-s,\.deps,_deps,g
-s,\.libs,_libs,g
 /^rmdir[	 ]*\.tst/ i\
 am__leading_dot=_
 
@@ -91,18 +110,6 @@ am__leading_dot=_
 # DOS-style absolute file names should be supported as well
 /\*) top_srcdir=/s,/\*,[\\\\/]* | ?:[\\\\/]*,
 
-# Prevent the spliting of subs.sed.
-# The sed script: subs.sed is split into 48 lines long files.
-# This will produce sed scripts called subs-$ac_sed_frag.sed, where
-# $ac_sed_frag is some unique number. This will not work if the splited
-# sed script contains a multiple line sed command at line #48. In this
-# case the first part of the multiple line sed command will be written
-# at the end of one particular subs-$ac_sed_frag.sed and the rest of the
-# sed command will be written at the begining of the next subs-$ac_sed_frag.sed
-# making both sed script useless.
-# This matches the configure script produced by Autoconf 2.57
-/ac_max_sed_lines=[0-9]/ s,=.*$,=`sed -n "$=" $tmp/subs.sed`,
-
 # The following two items are changes needed for configuring
 # and compiling across partitions.
 # 1) The given srcdir value is always translated from the
@@ -120,32 +127,30 @@ am__leading_dot=_
 # which the package has not been configured for.
 /MISSING=/,/^$/ {
   /^fi$/ a\
-am_missing_run=`echo "$am_missing_run" | sed 's%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%'`
+am_missing_run=`echo "$am_missing_run" | sed 's%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%${top_srcdir}%'`
 }
 /^install_sh=/a\
-install_sh=`echo "$install_sh" | sed 's%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%'`
+install_sh=`echo "$install_sh" | sed 's%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%${top_srcdir}%'`
 
 # This will only work if the assumption that the
 # testsuite is ran from the following path:
 #   ${top_srcdir}/tests/testsuite.dir
 # holds. The explicit names are of no importance.
 #   ../../. == ${top_srcdir}
-/\.)[	 ]*ac_abs_builddir=/,/^esac$/ {
+#/^esac$/,/^ac_abs_srcdir=/ {
- /^esac$/ a\
+/^ac_abs_srcdir=/ i\
-ac_abs_builddir=`echo "$ac_abs_builddir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%"`
+ac_abs_builddir=`echo "$ac_abs_builddir" | sed "s%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../.%"`\
-}
+ac_abs_top_builddir=`echo "$ac_abs_top_builddir" | sed "s%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../..%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../..%"`\
-/\.)[	 ]*ac_abs_top_builddir=/,/^esac$/ {
+ac_abs_top_srcdir=`echo "$ac_abs_top_srcdir" | sed "s%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../..%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../..%"`
- /^esac$/ a\
+#ac_abs_srcdir=`echo "$ac_abs_srcdir" | sed "s%/dev/.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-Za-z+]*%../../.%"`
-ac_abs_top_builddir=`echo "$ac_abs_top_builddir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%"`
+/^ac_abs_srcdir=/ a\
-}
+for dj_dir in $ac_abs_builddir $ac_abs_top_builddir $ac_abs_top_srcdir $ac_abs_srcdir\
-/\.)[	 ]*ac_abs_srcdir=/,/^esac$/ {
+do\
- /^esac$/ a\
+  ac_abs_builddir=`echo "$ac_abs_builddir" | sed "s%//%/%g"`\
-ac_abs_srcdir=`echo "$ac_abs_srcdir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%"`
+  ac_abs_top_builddir=`echo "$ac_abs_top_builddir" | sed "s%//%/%g"`\
-}
+  ac_abs_top_srcdir=`echo "$ac_abs_top_srcdir" | sed "s%//%/%g"`\
-/\.)[	 ]*ac_abs_top_srcdir=/,/^esac$/ {
+  ac_abs_srcdir=`echo "$ac_abs_srcdir" | sed "s%//%/%g"`\
- /^esac$/ a\
+done
-ac_abs_top_srcdir=`echo "$ac_abs_top_srcdir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%"`
-}
 
 # Add DJGPP version information.
 /^#define VERSION/ s/\$VERSION/&  (DJGPP port (r1))/
@@ -160,5 +165,26 @@ ac_abs_top_srcdir=`echo "$ac_abs_top_srcdir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\
 ac_djgpp_path=`echo "$DJDIR" | sed 's%\\\\\\%/%g' | tr $as_cr_LETTERS $as_cr_letters`\
 ac_cv_flibs=`echo "$ac_cv_flibs" | sed "s%-L$ac_djgpp_path%-L/dev/env/DJDIR%g"`
 
+# Autoconf generated configure scripts write absolute
+# paths of certain header files into Makefiles making
+# them useless for DJGPP installations for which the
+# package has not been configured for.
+/^.*echo "\$as_me:\$LINENO: result: \$gl_cv_absolute_.*$/ {
+h
+s,^.*\(gl_cv_absolute_\)\([a-z0-9_]*\)\(_h\).*$,\1\2\3=`echo $\1\2\3 | sed "s%[^:]:.*/include/%/dev/env/DJDIR/include/%"`,
+G
+}
+/^.*echo "\$as_me:\$LINENO: result: \$gl_cv_full_.*$/ {
+h
+s,^.*\(gl_cv_full_\)\([a-z0-9_]*\)\(_h\).*$,\1\2\3=`echo $\1\2\3 | sed "s%[^:]:.*/include/%/dev/env/DJDIR/include/%"`,
+G
+}
+
 # The following is not a valid DOS file name
 s/calc++/calcxx/g
+
+# The CR test for awk does not work for DJGPP.
+/^ac_cs_awk_cr=/,/^$/ {
+  /^fi$/ a\
+ac_cs_awk_cr=$ac_cr
+}

djgpp/config.site

@@ -3,21 +3,20 @@
 # This is the config.site file for configuring GNU packages
 # which are to be built with DJGPP tools.
 
-# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2, or (at your option)
+# the Free Software Foundation, either version 3 of the License, or
-# any later version.
+# (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, write to the Free Software Foundation,
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 
 # Include the djgpp subdirectory in PATH, so that getconf is found
@@ -68,6 +67,9 @@ ac_cv_path_FGREP=${FGREP='/dev/env/DJDIR/bin/fgrep'}
 # A sane default for sed.
 ac_cv_path_SED=${SED='/dev/env/DJDIR/bin/sed'}
 
+# A sane default for mkdir.
+ac_cv_path_mkdir=${MKDIR_P='/dev/env/DJDIR/bin/mkdir -p'}
+
 # These are set here so the generated libtool will be good
 # for every DJGPP installation, not only the one where the
 # package was configured.

djgpp/config_h.sed

@@ -1,20 +1,19 @@
 # sed script for DJGPP specific editing of config.hin
 
-# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2, or (at your option)
+# the Free Software Foundation, either version 3 of the License, or
-# any later version.
+# (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, write to the Free Software Foundation,
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 
 $ a\

djgpp/djunpack.bat

@@ -7,12 +7,12 @@ 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 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 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
-Rem the Free Software Foundation; either version 2, or (at your option)
+Rem the Free Software Foundation, either version 3 of the License, or
-Rem any later version.
+Rem (at your option) any later version.
 Rem
 Rem This program is distributed in the hope that it will be useful,
 Rem but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -20,8 +20,7 @@ Rem MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 Rem GNU General Public License for more details.
 Rem
 Rem You should have received a copy of the GNU General Public License
-Rem along with this program; if not, write to the Free Software Foundation,
+Rem along with this program.  If not, see <http://www.gnu.org/licenses/>.
-Rem Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 Rem
 Rem
 Rem Invoke like this:

djgpp/fnchange.lst

@@ -1,2 +1,27 @@
-@V@/src/scan-gram-c.c  @V@/src/c-scan-gram.c
+@V@/build-aux/javacomp.sh.in              @V@/build-aux/javacomp.sh-in
-@V@/src/scan-skel-c.c  @V@/src/c-scan-skel.c
+@V@/build-aux/javaexec.sh.in              @V@/build-aux/javaexec.sh-in
+@V@/data/c++-skel.m4                      @V@/data/cxx-skel.m4
+@V@/data/c++.m4                           @V@/data/cxx.m4
+@V@/doc/yacc.1.in                         @V@/doc/yacc.1-in
+@V@/etc/bench.pl.in                       @V@/etc/bench.pl-in
+@V@/examples/calc++/                      @V@/examples/calcxx/
+@V@/examples/calc++/Makefile.am           @V@/examples/calcxx/Makefile.am
+@V@/examples/calc++/Makefile.in           @V@/examples/calcxx/Makefile.in
+@V@/examples/calc++/calc++-scanner.cc     @V@/examples/calcxx/calcxx-scanner.cc
+@V@/examples/calc++/calc++-scanner.ll     @V@/examples/calcxx/calcxx-scanner.ll
+@V@/examples/calc++/calc++.cc             @V@/examples/calcxx/calcxx.cc
+@V@/examples/calc++/calc++-driver.hh      @V@/examples/calcxx/calcxx-driver.hh
+@V@/examples/calc++/calc++-driver.cc      @V@/examples/calcxx/calcxx-driver.cc
+@V@/examples/calc++/stack.hh              @V@/examples/calcxx/stack.hh
+@V@/examples/calc++/position.hh           @V@/examples/calcxx/position.hh
+@V@/examples/calc++/location.hh           @V@/examples/calcxx/location.hh
+@V@/examples/calc++/calc++-parser.hh      @V@/examples/calcxx/calcxx-parser.hh
+@V@/examples/calc++/calc++-parser.cc      @V@/examples/calcxx/calcxx-parser.cc
+@V@/examples/calc++/calc++-parser.stamp   @V@/examples/calcxx/calcxx-parser.stamp
+@V@/examples/calc++/calc++-parser.yy      @V@/examples/calcxx/calcxx-parser.yy
+@V@/examples/calc++/test                  @V@/examples/calcxx/test
+@V@/po/Makefile.in.in                     @V@/po/Makefile.in-in
+@V@/runtime-po/Makefile.in.in             @V@/runtime-po/Makefile.in-in
+@V@/src/scan-gram-c.c                     @V@/src/c-scan-gram.c
+@V@/src/scan-skel-c.c                     @V@/src/c-scan-skel.c
+@V@/tests/c++.at                          @V@/tests/cxx.at

djgpp/subpipe.c

@@ -1,11 +1,11 @@
 /* Subprocesses with pipes.
 
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2005-2012 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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 2, or (at your option)
+   the Free Software Foundation, either version 3 of the License, or
-   any later version.
+   (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
@@ -13,15 +13,12 @@
    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, write to the Free Software Foundation,
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 /* Written by Juan Manuel Guerrero <[email protected]>. */
 
 
-#ifdef HAVE_CONFIG_H
+#include <config.h>
-# include <config.h>
-#endif
 
 #include "subpipe.h"
 
@@ -63,22 +60,33 @@ 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)
 
 
 void
 init_subpipe(void)
 {
+  char *tmpdir;
   int fd;
 
-  strcpy(tmp_file_name[0], "/dev/env/TMPDIR/bnXXXXXX");
+  tmpdir = getenv("TMPDIR");
+  if (tmpdir == NULL)
+    tmpdir = getenv("TMP");
+  if (tmpdir == NULL)
+    tmpdir = getenv("TEMP");
+  if (access(tmpdir, D_OK))
+    tmpdir = ".";
+
+  strcpy(tmp_file_name[0], tmpdir);
+  strcat(tmp_file_name[0], "/bnXXXXXX");
   fd = mkstemp(tmp_file_name[0]);
   if (fd < 0)
     error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));
   close (fd);
 
-  strcpy(tmp_file_name[1], "/dev/env/TMPDIR/bnXXXXXX");
+  strcpy(tmp_file_name[1], tmpdir);
+  strcat(tmp_file_name[1], "/bnXXXXXX");
   fd = mkstemp(tmp_file_name[1]);
   if (fd < 0)
     error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));
@@ -223,17 +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"
-			     : "subsidiary program `%s' failed (status=%i, errno=%i)"), program, status, errno);
+			     : "subsidiary program '%s' failed (status=%i, errno=%i)"), program, status, errno);
   }
 
 
@@ -275,9 +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

@@ -1,9 +1,10 @@
 /* Subprocesses with pipes.
-   Copyright (C) 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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 2 of the License, or
+   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,
@@ -12,8 +13,7 @@
    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, write to the Free Software Foundation,
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* Written by Juan Manuel Guerrero <[email protected]>. */
 

djgpp/testsuite.sed

@@ -0,0 +1,23 @@
+# DJGPP specific configuration file.
+# Sed script for additional DJGPP specific editing
+# of the testsuite script generated by autoconf 2.61.
+
+# 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
+# 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/>.
+
+
+# Remove disallowed characters from file names.
+
+s/~!@#\\\$%^&\*()-=_+{}\[\]|\\\\:;<>, ./~!@#\\$%^\&()-=_+{}[];, ./g

doc/.cvsignore

@@ -1,22 +0,0 @@
-Makefile
-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
-refcard.dvi
-refcard.log
-refcard.ps
-Makefile.in
-*.info*
-stamp-vti
-version.texi

doc/.gitignore

@@ -0,0 +1,30 @@
+/*.info*
+/*~
+/.dirstamp
+/Makefile
+/Makefile.in
+/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
+/fdl.texi
+/gendocs_template
+/gpl-3.0.texi
+/refcard.dvi
+/refcard.log
+/refcard.ps
+/stamp-vti
+/version.texi
+/yacc.1

doc/Doxyfile.in

@@ -23,7 +23,7 @@ PROJECT_NAME           = "@PACKAGE_NAME@"
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = "@PACKAGE_VERSION@ @ID@"
+PROJECT_NUMBER         = "@PACKAGE_VERSION@"
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
@@ -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

@@ -1,39 +1,100 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2001, 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
 
-## This program is free software; you can redistribute it and/or modify
+## Copyright (C) 2001-2003, 2005-2012 Free Software Foundation, Inc.
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
 
-## This program is distributed in the hope that it will be useful,
+# This program is free software: you can redistribute it and/or modify
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+# it under the terms of the GNU General Public License as published by
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# the Free Software Foundation, either version 3 of the License, or
-## GNU General Public License for more details.
+# (at your option) any later version.
-
+#
-## You should have received a copy of the GNU General Public License
+# This program is distributed in the hope that it will be useful,
-## along with this program; if not, write to the Free Software
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## 02110-1301  USA
+# 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/>.
 
 AM_MAKEINFOFLAGS = --no-split
-info_TEXINFOS = bison.texinfo
+info_TEXINFOS = bison.texi
-man_MANS = bison.1
+bison_TEXINFOS = $(srcdir)/cross-options.texi gpl-3.0.texi fdl.texi
-bison_TEXINFOS = gpl.texi fdl.texi
 
-EXTRA_DIST = bison.1 refcard.tex
+CLEANFILES = bison.fns
-
-CLEANFILES = refcard.dvi refcard.log refcard.ps bison.fns
 CLEANDIRS = *.t2d
 clean-local:
 	rm -rf $(CLEANDIRS)
 
+CROSS_OPTIONS_PL = $(top_srcdir)/build-aux/cross-options.pl
+$(srcdir)/cross-options.texi: $(top_srcdir)/src/getargs.c $(CROSS_OPTIONS_PL)
+	$(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
+
+## ---------- ##
+## Ref card.  ##
+## ---------- ##
+
+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
 
 
+## ----------- ##
+## Man Pages.  ##
+## ----------- ##
+
+dist_man_MANS = $(srcdir)/bison.1
+
+EXTRA_DIST += $(dist_man_MANS:.1=.x) common.x
+MAINTAINERCLEANFILES += $(dist_man_MANS)
+
+# Depend on configure to get version number changes.
+common_dep = $(top_srcdir)/configure $(srcdir)/common.x
+srcsrcdir = $(top_srcdir)/bin
+$(srcdir)/bison.1:      $(common_dep) $(top_srcdir)/src/getargs.c
+
+# Differences to ignore when comparing the man page (the date).
+remove_time_stamp = \
+  sed 's/^\(\.TH[^"]*"[^"]*"[^"]*\)"[^"]*"/\1/'
+
+MOSTLYCLEANFILES = $(srcdir)/*.t
+
+SUFFIXES = .x .1
+
+PREPATH = $(top_builddir)/src
+.x.1:
+	$(AM_V_GEN)program=`expr "/$*" : '.*/\(.*\)'` &&		\
+	save_IFS=$IFS;							\
+	IFS=$(PATH_SEPARATOR);						\
+	for dir in $(PREPATH); do					\
+	  IFS=$save_IFS;						\
+	  echo cd $$dir '&&' $(MAKE) $(AM_MAKEFLAGS) $$program &&	\
+	  (cd $$dir && $(MAKE) $(AM_MAKEFLAGS) $$program) || exit;	\
+	done
+	$(AM_V_at)PATH="$(PREPATH)$(PATH_SEPARATOR)$$PATH";		     \
+	export PATH;							     \
+	$(HELP2MAN)							     \
+	    --include=$*.x						     \
+	    --include=$(srcdir)/common.x				     \
+	    --output=$@.t `echo '$*' | sed 's,.*/,,'`
+	$(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
+	$(AM_V_at)rm -f $@*.t
+
+nodist_man_MANS = yacc.1
 
 ## -------------- ##
 ## Doxygenation.  ##
@@ -48,8 +109,7 @@ doc: html
 html-local: Doxyfile
 	$(DOXYGEN)
 
-edit = sed -e "s|@ID@|$$Id|" \
+edit = sed -e 's,@PACKAGE_NAME\@,$(PACKAGE_NAME),g' \
-	   -e 's,@PACKAGE_NAME\@,$(PACKAGE_NAME),g' \
 	   -e 's,@PACKAGE_VERSION\@,$(PACKAGE_VERSION),g' \
 	   -e 's,@top_builddir\@,$(top_builddir),g' \
 	   -e 's,@top_srcdir\@,$(top_srcdir),g'
@@ -58,10 +118,7 @@ EXTRA_DIST += Doxyfile.in
 CLEANFILES += Doxyfile
 # Sed is used to generate Doxyfile from Doxyfile.in instead of
 # configure, because the former is way faster than the latter.
-# Moreover, this file is updated whenever ChangeLog is touched: using
+Doxyfile: $(srcdir)/Doxyfile.in
-# sed instead of configure saves us a lot of time.
+	$(AM_V_GEN)$(edit) $(srcdir)/Doxyfile.in >Doxyfile
-Doxyfile: $(top_srcdir)/ChangeLog $(srcdir)/Doxyfile.in
-	Id=`grep '^\$$Id' $(top_srcdir)/ChangeLog`; \
-	$(edit) $(srcdir)/Doxyfile.in >Doxyfile
 
 CLEANDIRS += html latex

doc/bison.1

@@ -1,369 +0,0 @@
-.TH BISON 1 local
-.SH NAME
-bison \- GNU Project parser generator (yacc replacement)
-.SH SYNOPSIS
-.B bison
-[
-.BI \-b  " file-prefix"
-] [
-.BI \-\-file-prefix= file-prefix
-] [
-.B \-d
-] [
-.BI \-\-defines= defines-file
-] [
-.B \-g
-] [
-.BI \-\-graph= graph-file
-] [
-.B \-k
-] [
-.B \-\-token-table
-] [
-.B \-l
-] [
-.B \-\-no-lines
-] [
-.B \-n
-] [
-.B \-\-no-parser
-] [
-.BI \-o " outfile"
-] [
-.BI \-\-output-file= outfile
-] [
-.BI \-p " prefix"
-] [
-.BI \-\-name-prefix= prefix
-] [
-.B \-t
-] [
-.B \-\-debug
-] [
-.B \-v
-] [
-.B \-\-verbose
-] [
-.B \-V
-] [
-.B \-\-version
-] [
-.B \-y
-] [
-.B \-\-yacc
-] [
-.B \-h
-] [
-.B \-\-help
-] [
-.B \-\-fixed-output-files
-]
-file
-.br
-.B yacc
-[
-.I "similar options and operands"
-]
-.SH DESCRIPTION
-.I Bison
-is a parser generator in the style of
-.IR yacc (1).
-It should be upwardly compatible with input files designed
-for
-.IR yacc .
-.PP
-Input files should follow the
-.I yacc
-convention of ending in
-.BR .y .
-Unlike
-.IR yacc ,
-the generated files do not have fixed names, but instead use the prefix
-of the input file.
-Moreover, if you need to put
-.I C++
-code in the input file, you can end his name by a C++-like extension
-(.ypp or .y++), then bison will follow your extension to name the
-output file (.cpp or .c++).
-For instance, a grammar description file named
-.B parse.yxx
-would produce the generated parser in a file named
-.BR parse.tab.cxx ,
-instead of
-.IR yacc 's
-.B y.tab.c
-or old
-.I Bison
-version's
-.BR parse.tab.c .
-.PP
-This description of the options that can be given to
-.I bison
-is adapted from the node
-.B Invocation
-in the
-.B bison.texinfo
-manual, which should be taken as authoritative.
-.PP
-.I Bison
-supports both traditional single-letter options and mnemonic long
-option names.  Long option names are indicated with
-.B \-\-
-instead of
-.BR \- .
-Abbreviations for option names are allowed as long as they
-are unique.  When a long option takes an argument, like
-.BR \-\-file-prefix ,
-connect the option name and the argument with
-.BR = .
-.SS OPTIONS
-.TP
-.BI \-b " file-prefix"
-.br
-.ns
-.TP
-.BI \-\-file-prefix= file-prefix
-Specify a prefix to use for all
-.I bison
-output file names.  The names are
-chosen as if the input file were named
-\fIfile-prefix\fP\fB.c\fP.
-.TP
-.B \-d
-.br
-.ns
-Write an extra output file containing macro definitions for the token
-type names defined in the grammar and the semantic value type
-.BR YYSTYPE ,
-as well as a few
-.B extern
-variable declarations.
-.sp
-If the parser output file is named
-.IB name .c
-then this file
-is named
-\fIname\fP\fB.h\fP.
-.sp
-This output file is essential if you wish to put the definition of
-.B yylex
-in a separate source file, because
-.B yylex
-needs to be able to refer to token type codes and the variable
-.BR yylval .
-.TP
-.BI \-\-defines= defines-file
-The behavior of
-.B \-\-defines
-is the same than
-.B \-d
-option.
-The only difference is that it has an optional argument which is
-the name of the output filename.
-.TP
-.BI \-g
-.br
-.ns
-Output a VCG definition of the LALR(1) grammar automaton computed by
-Bison.  If the grammar file is
-.BR foo.y
-, the VCG output file will be
-.BR foo.vcg .
-.TP
-.BI \-\-graph= graph-file
-The behavior of
-.BI \-\-graph
-is the same than
-.BI \-g
-option.  The only difference is that it has an optional argument which
-is the name of the output graph filename.
-.TP
-.B \-k
-.br
-.ns
-.TP
-.B \-\-token-table
-This switch causes the
-.IB name .tab.c
-output to include a list of
-token names in order by their token numbers; this is defined in the array
-.IR yytname .
-Also generated
-are #defines for
-.IR YYNTOKENS ,
-.IR YYNNTS ,
-.IR YYNRULES ,
-and
-.IR YYNSTATES .
-.TP
-.B \-l
-.br
-.ns
-.TP
-.B \-\-no-lines
-Don't put any
-.B #line
-preprocessor commands in the parser file.
-Ordinarily
-.I bison
-puts them in the parser file so that the C compiler
-and debuggers will associate errors with your source file, the
-grammar file.  This option causes them to associate errors with the
-parser file, treating it an independent source file in its own right.
-.TP
-.B \-n
-.br
-.ns
-.TP
-.B \-\-no-parser
-Do not generate the parser code into the output; generate only
-declarations.  The generated
-.IB name .tab.c
-file will have only
-constant declarations.  In addition, a
-.IB name .act
-file is
-generated containing a switch statement body containing all the
-translated actions.
-.TP
-.BI \-o " outfile"
-.br
-.ns
-.TP
-.BI \-\-output-file= outfile
-Specify the name
-.I outfile
-for the parser file.
-.sp
-The other output files' names are constructed from
-.I outfile
-as described under the
-.B \-v
-and
-.B \-d
-switches.
-.TP
-.BI \-p " prefix"
-.br
-.ns
-.TP
-.BI \-\-name-prefix= prefix
-Rename the external symbols used in the parser so that they start with
-.I prefix
-instead of
-.BR yy .
-The precise list of symbols renamed is
-.BR yyparse ,
-.BR yylex ,
-.BR yyerror ,
-.BR yylval ,
-.BR yychar ,
-and
-.BR yydebug .
-.sp
-For example, if you use
-.BR "\-p c" ,
-the names become
-.BR cparse ,
-.BR clex ,
-and so on.
-.TP
-.B \-t
-.br
-.ns
-.TP
-.B \-\-debug
-In the parser file, define the macro
-.B YYDEBUG
-to 1 if it is not already defined,
-so that the debugging facilities are compiled.
-.TP
-.B \-v
-.br
-.ns
-.TP
-.B \-\-verbose
-Write an extra output file containing verbose descriptions of the
-parser states and what is done for each type of lookahead token in
-that state.
-.sp
-This file also describes all the conflicts, both those resolved by
-operator precedence and the unresolved ones.
-.sp
-The file's name is made by removing
-.B .tab.c
-or
-.B .c
-from the parser output file name, and adding
-.B .output
-instead.
-.sp
-Therefore, if the input file is
-.BR foo.y ,
-then the parser file is called
-.B foo.tab.c
-by default.  As a consequence, the verbose
-output file is called
-.BR foo.output .
-.TP
-.B \-V
-.br
-.ns
-.TP
-.B \-\-version
-Print the version number of
-.I bison
-and exit.
-.TP
-.B \-h
-.br
-.ns
-.TP
-.B \-\-help
-Print a summary of the options to
-.I bison
-and exit.
-.TP
-.B \-y
-.br
-.ns
-.TP
-.B \-\-yacc
-.br
-.ns
-.TP
-.B \-\-fixed-output-files
-Equivalent to
-.BR "\-o y.tab.c" ;
-the parser output file is called
-.BR y.tab.c ,
-and the other outputs are called
-.B y.output
-and
-.BR y.tab.h .
-The purpose of this switch is to imitate
-.IR yacc 's
-output file name conventions.
-Thus, the following shell script can substitute for
-.I yacc
-and is often installed as
-.IR yacc :
-.sp
-.RS
-.ft B
-bison \-y "$@"
-.ft R
-.sp
-.RE
-.SH SEE ALSO
-.IR yacc (1)
-.br
-The
-.IR "Bison Reference Manual" ,
-included as the file
-.B bison.texinfo
-in the
-.I bison
-source distribution.
-.SH DIAGNOSTICS
-Self explanatory.

doc/bison.x

@@ -0,0 +1,55 @@
+[name]
+bison \- GNU Project parser generator (yacc replacement)
+
+[description]
+.I Bison
+is a parser generator in the style of
+.IR yacc (1).
+It should be upwardly compatible with input files designed
+for
+.IR yacc .
+.PP
+Input files should follow the
+.I yacc
+convention of ending in
+.BR .y .
+Unlike
+.IR yacc ,
+the generated files do not have fixed names, but instead use the prefix
+of the input file.
+Moreover, if you need to put
+.I C++
+code in the input file, you can end his name by a C++-like extension
+(.ypp or .y++), then bison will follow your extension to name the
+output file (.cpp or .c++).
+For instance, a grammar description file named
+.B parse.yxx
+would produce the generated parser in a file named
+.BR parse.tab.cxx ,
+instead of
+.IR yacc 's
+.B y.tab.c
+or old
+.I Bison
+version's
+.BR parse.tab.c .
+.PP
+This description of the options that can be given to
+.I bison
+is adapted from the node
+.B Invocation
+in the
+.B bison.texinfo
+manual, which should be taken as authoritative.
+.PP
+.I Bison
+supports both traditional single-letter options and mnemonic long
+option names.  Long option names are indicated with
+.B \-\-
+instead of
+.BR \- .
+Abbreviations for option names are allowed as long as they
+are unique.  When a long option takes an argument, like
+.BR \-\-file-prefix ,
+connect the option name and the argument with
+.BR = .

doc/common.x

@@ -0,0 +1,4 @@
+[see also]
+.BR lex (1),
+.BR flex (1),
+.BR yacc (1).

doc/fdl.texi

@@ -1,452 +0,0 @@
-
-@node GNU Free Documentation License
-@appendixsec GNU Free Documentation License
-
-@cindex FDL, GNU Free Documentation License
-@center Version 1.2, November 2002
-
-@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
-of these sections as invariant.  To do this, add their titles to the
-list of Invariant Sections in the Modified Version's license notice.
-These titles must be distinct from any other section titles.
-
-You may add a section Entitled ``Endorsements'', provided it contains
-nothing but endorsements of your Modified Version by various
-parties---for example, statements of peer review or that the text has
-been approved by an organization as the authoritative definition of a
-standard.
-
-You may add a passage of up to five words as a Front-Cover Text, and a
-passage of up to 25 words as a Back-Cover Text, to the end of the list
-of Cover Texts in the Modified Version.  Only one passage of
-Front-Cover Text and one of Back-Cover Text may be added by (or
-through arrangements made by) any one entity.  If the Document already
-includes a cover text for the same cover, previously added by you or
-by arrangement made by the same entity you are acting on behalf of,
-you may not add another; but you may replace the old one, on explicit
-permission from the previous publisher that added the old one.
-
-The author(s) and publisher(s) of the Document do not by this License
-give permission to use their names for publicity for or to assert or
-imply endorsement of any Modified Version.
-
-@item
-COMBINING DOCUMENTS
-
-You may combine the Document with other documents released under this
-License, under the terms defined in section 4 above for modified
-versions, provided that you include in the combination all of the
-Invariant Sections of all of the original documents, unmodified, and
-list them all as Invariant Sections of your combined work in its
-license notice, and that you preserve all their Warranty Disclaimers.
-
-The combined work need only contain one copy of this License, and
-multiple identical Invariant Sections may be replaced with a single
-copy.  If there are multiple Invariant Sections with the same name but
-different contents, make the title of each such section unique by
-adding at the end of it, in parentheses, the name of the original
-author or publisher of that section if known, or else a unique number.
-Make the same adjustment to the section titles in the list of
-Invariant Sections in the license notice of the combined work.
-
-In the combination, you must combine any sections Entitled ``History''
-in the various original documents, forming one section Entitled
-``History''; likewise combine any sections Entitled ``Acknowledgements'',
-and any sections Entitled ``Dedications''.  You must delete all
-sections Entitled ``Endorsements.''
-
-@item
-COLLECTIONS OF DOCUMENTS
-
-You may make a collection consisting of the Document and other documents
-released under this License, and replace the individual copies of this
-License in the various documents with a single copy that is included in
-the collection, provided that you follow the rules of this License for
-verbatim copying of each of the documents in all other respects.
-
-You may extract a single document from such a collection, and distribute
-it individually under this License, provided you insert a copy of this
-License into the extracted document, and follow this License in all
-other respects regarding verbatim copying of that document.
-
-@item
-AGGREGATION WITH INDEPENDENT WORKS
-
-A compilation of the Document or its derivatives with other separate
-and independent documents or works, in or on a volume of a storage or
-distribution medium, is called an ``aggregate'' if the copyright
-resulting from the compilation is not used to limit the legal rights
-of the compilation's users beyond what the individual works permit.
-When the Document is included in an aggregate, this License does not
-apply to the other works in the aggregate which are not themselves
-derivative works of the Document.
-
-If the Cover Text requirement of section 3 is applicable to these
-copies of the Document, then if the Document is less than one half of
-the entire aggregate, the Document's Cover Texts may be placed on
-covers that bracket the Document within the aggregate, or the
-electronic equivalent of covers if the Document is in electronic form.
-Otherwise they must appear on printed covers that bracket the whole
-aggregate.
-
-@item
-TRANSLATION
-
-Translation is considered a kind of modification, so you may
-distribute translations of the Document under the terms of section 4.
-Replacing Invariant Sections with translations requires special
-permission from their copyright holders, but you may include
-translations of some or all Invariant Sections in addition to the
-original versions of these Invariant Sections.  You may include a
-translation of this License, and all the license notices in the
-Document, and any Warranty Disclaimers, provided that you also include
-the original English version of this License and the original versions
-of those notices and disclaimers.  In case of a disagreement between
-the translation and the original version of this License or a notice
-or disclaimer, the original version will prevail.
-
-If a section in the Document is Entitled ``Acknowledgements'',
-``Dedications'', or ``History'', the requirement (section 4) to Preserve
-its Title (section 1) will typically require changing the actual
-title.
-
-@item
-TERMINATION
-
-You may not copy, modify, sublicense, or distribute the Document except
-as expressly provided for under this License.  Any other attempt to
-copy, modify, sublicense or distribute the Document is void, and will
-automatically terminate your rights under this License.  However,
-parties who have received copies, or rights, from you under this
-License will not have their licenses terminated so long as such
-parties remain in full compliance.
-
-@item
-FUTURE REVISIONS OF THIS LICENSE
-
-The Free Software Foundation may publish new, revised versions
-of the GNU Free Documentation 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.  See
-@uref{http://www.gnu.org/copyleft/}.
-
-Each version of the License is given a distinguishing version number.
-If the Document specifies that a particular numbered version of this
-License ``or any later version'' applies to it, you have the option of
-following the terms and conditions either of that specified version or
-of any later version that has been published (not as a draft) by the
-Free Software Foundation.  If the Document does not specify a version
-number of this License, you may choose any version ever published (not
-as a draft) by the Free Software Foundation.
-@end enumerate
-
-@page
-@appendixsubsec ADDENDUM: How to use this License for your documents
-
-To use this License in a document you have written, include a copy of
-the License in the document and put the following copyright and
-license notices just after the title page:
-
-@smallexample
-@group
-  Copyright (C)  @var{year}  @var{your name}.
-  Permission is granted to copy, distribute and/or modify this document
-  under the terms of the GNU Free Documentation License, Version 1.2
-  or any later version published by the Free Software Foundation;
-  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
-  Texts.  A copy of the license is included in the section entitled ``GNU
-  Free Documentation License''.
-@end group
-@end smallexample
-
-If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
-replace the ``with...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
-    being @var{list}.
-@end group
-@end smallexample
-
-If you have Invariant Sections without Cover Texts, or some other
-combination of the three, merge those two alternatives to suit the
-situation.
-
-If your document contains nontrivial examples of program code, we
-recommend releasing these examples in parallel under your choice of
-free software license, such as the GNU General Public License,
-to permit their use in free software.
-
-@c Local Variables:
-@c ispell-local-pdict: "ispell-dict"
-@c End:
-

doc/gpl.texi

@@ -1,392 +0,0 @@
-@node Copying
-@unnumbered GNU GENERAL PUBLIC LICENSE
-@center Version 2, June 1991
-
-@c This file is intended to be included in another file.
-
-@display
-Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
-51 Franklin Street, 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
-
-@unnumberedsec Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software---to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-@iftex
-@unnumberedsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-@end iftex
-@ifinfo
-@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-@end ifinfo
-
-@enumerate 0
-@item
-This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The ``Program'', below,
-refers to any such program or work, and a ``work based on the Program''
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term ``modification''.)  Each licensee is addressed as ``you''.
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-@item
-You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-@item
-You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-@enumerate a
-@item
-You must cause the modified files to carry prominent notices
-stating that you changed the files and the date of any change.
-
-@item
-You must cause any work that you distribute or publish, that in
-whole or in part contains or is derived from the Program or any
-part thereof, to be licensed as a whole at no charge to all third
-parties under the terms of this License.
-
-@item
-If the modified program normally reads commands interactively
-when run, you must cause it, when started running for such
-interactive use in the most ordinary way, to print or display an
-announcement including an appropriate copyright notice and a
-notice that there is no warranty (or else, saying that you provide
-a warranty) and that users may redistribute the program under
-these conditions, and telling the user how to view a copy of this
-License.  (Exception: if the Program itself is interactive but
-does not normally print such an announcement, your work based on
-the Program is not required to print an announcement.)
-@end enumerate
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
-sections when you distribute them as separate works.  But when you
-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
-exercise the right to control the distribution of derivative or
-collective works based on the Program.
-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
-@item
-You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
-@enumerate a
-@item
-Accompany it with the complete corresponding machine-readable
-source code, which must be distributed under the terms of Sections
-1 and 2 above on a medium customarily used for software interchange; or,
-
-@item
-Accompany it with a written offer, valid for at least three
-years, to give any third party, for a charge no more than your
-cost of physically performing source distribution, a complete
-machine-readable copy of the corresponding source code, to be
-distributed under the terms of Sections 1 and 2 above on a medium
-customarily used for software interchange; or,
-
-@item
-Accompany it with the information you received as to the offer
-to distribute corresponding source code.  (This alternative is
-allowed only for noncommercial distribution and only if you
-received the program in object code or executable form with such
-an offer, in accord with Subsection b above.)
-@end enumerate
-
-The source code for a work means the preferred form of the work for
-making modifications to it.  For an executable work, complete source
-code means all the source code for all modules it contains, plus any
-associated interface definition files, plus the scripts used to
-control compilation and installation of the executable.  However, as a
-special exception, the source code distributed need not include
-anything that is normally distributed (in either source or binary
-form) with the major components (compiler, kernel, and so on) of the
-operating system on which the executable runs, unless that component
-itself accompanies the executable.
-
-If distribution of executable or object code is made by offering
-access to copy from a designated place, then offering equivalent
-access to copy the source code from the same place counts as
-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
-
-@item
-You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License.  Any attempt
-otherwise to copy, modify, sublicense or distribute the Program is
-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
-this License will not have their licenses terminated so long as such
-parties remain in full compliance.
-
-@item
-You are not required to accept this License, since you have not
-signed it.  However, nothing else grants you permission to modify or
-distribute the Program or its derivative works.  These actions are
-prohibited by law if you do not accept this License.  Therefore, by
-modifying or distributing the Program (or any work based on the
-Program), you indicate your acceptance of this License to do so, and
-all its terms and conditions for copying, distributing or modifying
-the Program or works based on it.
-
-@item
-Each time you redistribute the Program (or any work based on the
-Program), the recipient automatically receives a license from the
-original licensor to copy, distribute or modify the Program subject to
-these terms and conditions.  You may not impose any further
-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
-this License.
-
-@item
-If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-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
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
-
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
-
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-@item
-If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-@item
-The Free Software Foundation may publish revised and/or new versions
-of the 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 a version number of this License which applies to it and ``any
-later version'', you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-@item
-If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
-
-@iftex
-@heading NO WARRANTY
-@end iftex
-@ifinfo
-@center NO WARRANTY
-@end ifinfo
-
-@item
-BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE 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.
-@end enumerate
-
-@iftex
-@heading END OF TERMS AND CONDITIONS
-@end iftex
-@ifinfo
-@center END OF TERMS AND CONDITIONS
-@end ifinfo
-
-@page
-@unnumberedsec Appendix: 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
-convey 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{yyyy}  @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 2 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, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-@end smallexample
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-@smallexample
-Gnomovision version 69, Copyright (C) 19@var{yy} @var{name of author}
-Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-This is free software, and you are welcome to redistribute it
-under certain conditions; type `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, the
-commands you use may be called something other than @samp{show w} and
-@samp{show c}; they could even be mouse-clicks or menu items---whatever
-suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a ``copyright disclaimer'' for the program, if
-necessary.  Here is a sample; alter the names:
-
-@example
-Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-`Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-@var{signature of Ty Coon}, 1 April 1989
-Ty Coon, President of Vice
-@end example
-
-This 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 Library General
-Public License instead of this License.

doc/refcard.tex

@@ -19,24 +19,22 @@
 \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.
 %
-% Bison is free software; you can redistribute them and/or modify them
+% This program is free software: you can redistribute it and/or modify
-% under the terms of the GNU General Public License as published by the
+% it under the terms of the GNU General Public License as published by
-% Free Software Foundation; either version 2, or (at your option) any
+% the Free Software Foundation, either version 3 of the License, or
-% later version.
+% (at your option) any later version.
 %
-% Bison is distributed in the hope that it will be useful, but WITHOUT
+% This program is distributed in the hope that it will be useful,
-% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-% for more details.
+% GNU General Public License for more details.
 %
 % You should have received a copy of the GNU General Public License
-% along with either Flex or Bison; see the file COPYING.  If not, write
+% along with this program.  If not, see <http://www.gnu.org/licenses/>.
-% to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-% Boston, MA 02110-1301, USA.
 %
 % This file is intended to be processed by plain TeX (TeX82).
 %

doc/yacc.1.in

@@ -0,0 +1,41 @@
+.TH YACC "1" "November 2007" "@PACKAGE_STRING@" "User Commands"
+.SH NAME
+yacc \- GNU Project parser generator
+.SH SYNOPSIS
+.B yacc
+[\fIOPTION\fR]... \fIFILE\fR
+.SH DESCRIPTION
+.I Yacc
+(Yet Another Compiler Compiler) is a parser generator.  This
+version is a simple wrapper around
+.IR bison (1).
+It passes option
+\fB\-y\fR, \fB\-\-yacc\fR
+to activate the upward compatibility mode.  See
+.IR bison (1)
+for more information.
+.SH AUTHOR
+Written by Paul Eggert.
+.SH "REPORTING BUGS"
+Report bugs to <@PACKAGE_BUGREPORT@>.
+.SH COPYRIGHT
+Copyright \(co @PACKAGE_COPYRIGHT_YEAR@ Free Software Foundation, Inc.
+.br
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+.SH "SEE ALSO"
+.BR lex (1),
+.BR flex (1),
+.BR bison (1).
+.PP
+The full documentation for
+.B bison
+is maintained as a Texinfo manual.  If the
+.B info
+and
+.B bison
+programs are properly installed at your site, the command
+.IP
+.B info bison
+.PP
+should give you access to the complete manual.

etc/.gitignore

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

etc/Makefile.am

@@ -0,0 +1,16 @@
+## 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/>.
+
+nodist_noinst_SCRIPTS = bench.pl

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
@@ -19,24 +16,22 @@ 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.
 
-Bison is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation, either version 3 of the License, or
-any later version.
+(at your option) any later version.
 
-Bison is distributed in the hope that it will be useful,
+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 autoconf; see the file COPYING.  If not, write to
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.
 
 Local Variables:
 mode: outline

etc/bench.pl.in

@@ -1,28 +1,26 @@
 #! /usr/bin/perl -w
 
-# Copyright (C) 2006 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008-2012 Free Software Foundation, Inc.
-# 
+#
 # This file is part of Bison, the GNU Compiler Compiler.
-# 
+#
-# Bison is free software; you can redistribute it and/or modify
+# 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 2, or (at your option)
+# the Free Software Foundation, either version 3 of the License, or
-# any later version.
+# (at your option) any later version.
-# 
+#
-# Bison is distributed in the hope that it will be useful,
+# 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 autoconf; see the file COPYING.  If not, write to
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+
-# Boston, MA 02110-1301, USA.
- 
 use IO::File;
 use Benchmark qw (:all);
 
-my $bison = $ENV{'BISON'} || 'bison';
+my $bison = $ENV{'BISON'} || '@abs_top_builddir@/tests/bison';
 my $cc = $ENV{'CC'} || 'gcc';
 
 ##################################################################
@@ -136,8 +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>
@@ -260,12 +258,6 @@ read_signed_integer (void)
   return sign * n;
 }
 
-#if YYPUSH
-#ifndef HAVE_YYSTYPE
-static YYSTYPE yylval;
-#endif
-#endif
-
 static int
 #if YYPURE
 # define yylval (*yylvalp)
@@ -278,9 +270,7 @@ yylex (void)
 
   /* Skip white space.  */
   while ((c = get_char ()) == ' ' || c == '\t')
-    {
+    continue;
-
-    }
 
   /* process numbers   */
   if (c == '.' || isdigit (c))
@@ -301,30 +291,14 @@ 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;
 }
 
 
-#if YYPUSH
-static int 
-yyparse_wrapper ()
-{
-  struct yypvars *ctx = yypvarsinit ();
-  do {                                                                          
-    set_yychar (ctx, yylex ());                                                 
-    ctx->yylval = yylval;
-    yyparse (ctx);                                                              
-  } while (get_yyresult (ctx) != 0);                                            
-  free (ctx);                 
-}                                                  
-#define yyparse yyparse_wrapper
-#endif
-
 int
 main (int argc, const char **argv)
 {
@@ -366,16 +340,12 @@ sub bench_grammar ($)
   my ($gram) = @_;
   my %test =
     (
-     "yacc-yacc" => '',
+     "pull-impure" => '',
-     "yacc-pure" => '%pure-parser',
+     "pull-pure" => '%define api.pure',
-     "push-yacc" => '%skeleton "push.c"',
+     "push-impure" => '%define api.push-pull "both"',
-     "push-pure" => '%skeleton "push.c" %pure-parser',
+     "push-pure" => '%define api.push-pull "both" %define api.pure',
-     "push-push" => '%skeleton "push.c" %push-parser',
-     "popt-yacc" => '%skeleton "push_opt.c"',
-     "popt-pure" => '%skeleton "push_opt.c" %pure-parser',
-     "popt-push" => '%skeleton "push_opt.c" %push-parser',
     );
-  
+
   my %bench;
   while (my ($name, $directives) = each %test)
     {

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/.gitignore

@@ -0,0 +1,2 @@
+/Makefile
+/Makefile.in

examples/Makefile.am

@@ -1,20 +1,18 @@
 ## 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
+# 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
+# it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
-## (at your option) any later version.
+# (at your option) any later version.
-
+#
-## This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
+# GNU General Public License for more details.
-
+#
-## You should have received a copy of the GNU General Public License
+# You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-## 02110-1301  USA
 
 if BISON_CXX_WORKS
 SUBDIRS = calc++

examples/calc++/.cvsignore

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

examples/calc++/.gitignore

@@ -0,0 +1,13 @@
+/*.cc
+/*.hh
+/*.ll
+/*.o
+/*.output
+/*.stamp
+/*.tmp
+/*.yy
+/.deps
+/Makefile
+/Makefile.in
+/calc++
+/calc++.exe

examples/calc++/Makefile.am

@@ -1,20 +1,18 @@
 ## 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
+# 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
+# it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
-## (at your option) any later version.
+# (at your option) any later version.
-
+#
-## This program is distributed in the hope that it will be useful,
+# This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
+# GNU General Public License for more details.
-
+#
-## You should have received a copy of the GNU General Public License
+# You should have received a copy of the GNU General Public License
-## along with this program; if not, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-## 02110-1301  USA
 
 ## ------------------------------------- ##
 ## Running the bison from this tarball.  ##
@@ -24,26 +22,31 @@ 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) $(extexi)
+$(srcdir)/calc.stamp: $(doc) $(extexi)
-	cd $(srcdir) && \
+	$(AM_V_GEN)rm -f $@ $@.tmp
-	   $(AWK) -f ../extexi ../../doc/bison.texinfo -- \
+	$(AM_V_at)touch $@.tmp
-	     calc++-parser.yy \
+	$(AM_V_at)cd $(srcdir) && \
+	   $(AWK) -f ../extexi -v VERSION="$(VERSION)" \
+	     ../../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.  ##
 ## ------------------- ##
 
+DEFAULT_INCLUDES = -I. -I$(srcdir)
 BUILT_SOURCES = $(calc_extracted) $(calc_sources_generated)
 CLEANFILES = $(srcdir)/*.output *.tmp
 MAINTAINERCLEANFILES = $(srcdir)/*.stamp $(BUILT_SOURCES)
@@ -51,18 +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
+	$(AM_V_GEN)rm -f calc++-parser.tmp
-	@touch calc++-parser.tmp
+	$(AM_V_at)touch calc++-parser.tmp
-	$(BISON) -d -ra -S lalr1.cc -o $(srcdir)/calc++-parser.cc \
+	$(AM_V_at)$(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
@@ -75,11 +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)/stack.hh $(srcdir)/position.hh $(srcdir)/location.hh \
-	$(srcdir)/calc++-parser.hh $(srcdir)/calc++-parser.cc
+  $(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

@@ -1,11 +1,13 @@
 # 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
+# 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 2 of the License, or
+# 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,
@@ -14,9 +16,7 @@
 # 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, write to the Free Software
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307  USA
 
 # This script is for use with any Awk that conforms to POSIX.
 # It was derived from a similar script tests/generate.awk in GNU m4.
@@ -111,6 +111,7 @@ function normalize(contents,    i, lines, n, line, res) {
 	else
 	  line = "";
 
+      gsub (/"@value\{VERSION\}"/, "\"" VERSION "\"", line)
       gsub (/^@result\{\}/, "", line);
       gsub (/^@error\{\}/,  "", line);
       gsub ("@[{]", "{", line);

externals/bootstrap.cfg

@@ -0,0 +1 @@
+external: gnulib