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error recovery loops. This patch is based on <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>. Also, augment the similarity between lalr1.cc and yacc.c. Note: the locations of error recovery rules are not correct yet. * data/lalr1.cc: Comment changes to augment the similarity between lalr1.cc and yacc.c. (YYERROR): Goto to yyerrorlab, not yyerrlab1. (yyerrlab1): Remove, but where it used to be (now the bottom part of yyerrlab), when hitting EOF, pop the whole stack here instead of merely falling thru the default error handling mechanism. (yyerrorlab): New label, with the old contents of YYERROR, plus the following change: pop the stack of rhs corresponding to the production that invoked YYERROR. That is how Yacc behaves (required by POSIX). * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to fail.
This directory contains the Bison parser generator. See the file INSTALL for compilation and installation instructions. See the file doc/FAQ for frequently asked questions. Older versions of Sun Forte Developer 6 update 2 have a compiler bug that cause "make check" to fail with a "Encounter BINCL entry" diagnostic. To fix the bug, update to the latest set of Solaris and Forte patches recommended by Sun. VMS and MS-DOS builds are probably broken right now. If you are able to build Bison on either platform and you need to make changes to do so, please submit those changes as a bug report. On VMS, you will probably have to create Makefile from Makefile.in by hand. Remember to do `SET COMMAND BISON' to install the data in `BISON.CLD'. Send bug reports to <bug-bison@gnu.org>. Please include the version number from `bison --version', and a complete, self-contained test case in each bug report. If you have questions about using Bison which the documentation does not answer, send mail to <help-bison@gnu.org>. ----- Copyright (C) 1992, 1998, 1999, 2003 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 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. 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 autoconf; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.