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skeleton doesn't have to have a copy for pull mode and another for push mode. This patch also fixes at least a bug such that yylloc was not initialized (with b4_location_initial_line and b4_location_initial_column) upon calling yypush_parse. However, that initialization now overwrites the first token's location; %initial-action assigning @$ already did the same thing, and both bugs will be fixed in a later patch. * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa. (b4_declare_parser_state_variables): Remove initialization of yytoken, yyss, yyvs, yyls, and yystacksize. (yypstate_new): Remove initialization of some yypstate fields: yystate, yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and yylsp. (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to yyps->NAME so it can be used in yypush_parse. (yyparse or yypush_parse): For yypush_parse, don't print the "Starting parse" diagnostic for invocations after the first. Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for yypush_parse, only do it for the first invocation. Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc initialization to occur in yypush_parse but only on the first invocation.
This directory contains the Bison parser generator. See the file INSTALL for generic compilation and installation instructions. See the file doc/FAQ for frequently asked questions. Bison requires GNU m4 1.4.3 or later. See: ftp://ftp.gnu.org/gnu/m4/m4-1.4.3.tar.gz Bison can work with pre-1.4.3 distributions of GNU m4 if they are sufficiently patched, but if you encounter a bug with an older distribution and report a bug we will probably suggest that you upgrade to 1.4.3 as the first step in trying to fix it. Please 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 and the documentation does not answer them, please send mail to <help-bison@gnu.org>. ----- Copyright (C) 1992, 1998, 1999, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.