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Simplify implementation of unqualified %code, implement macros for uniform treatment of boolean %define flags. Document %define. * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if, b4_percent_code_ifdef): New. (b4_percent_code_get): Map unqualified %code to b4_percent_code(). * data/c++.m4: Define default value for global_tokens_and_yystype. * data/glr.cc: Likewise. * data/location.cc: Use b4_percent_define_flag_if. * doc/bison.texinfo (Directives): Document %define. * src/parse-gram.y (Unqualified %code): Change muscle name to b4_percent_code(). (content.opt): Default to empty.
-*- 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.