mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-10 12:53:03 +00:00
Define when we know YYLTYPE's structure, i.e., when the default YYLLOC_DEFAULT is used. * data/c.m4 (b4_yysymprint_generate): Use it. * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial value of the result. (error_start_): Replace with... (error_range_): this location array. This allows to replace code relying on the implementation of locations by portable code. * data/yacc.c (yylerrsp): Replace with... (yyerror_range): this. Every time a token is popped, update yyerror_range[0], to have an accurate location for the error token. * data/glr.c (YY_LOCATION_PRINT): New. (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT: deference a pointer. * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer report the location in %printers. * src/scan-skel.l: Instead of abort, report error messages to ease understanding skeleton scanning failures.
-*- outline -*- This directory contains Bison skeletons: the general shapes of the different parser kinds, that are specialized for specific grammars by the bison program. Currently, there are only three supported skeletons: - 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 yet supported. Please, subscribe to bison-patches@gnu.org. - glr.c A Generalized LR C parser based on Bison's LALR(1) tables. 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. ----- Copyright (C) 2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.