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unrecognized %code qualifiers. Check for redefined %define variables. * data/bison.m4 (b4_check_for_unrecognized_names): New macro that generalizes... (b4_check_percent_code_qualifiers): ... this, which now wraps it. (b4_check_percent_define_variables): New, also wraps it. * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define variables using b4_check_percent_define_variables. * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as all those exercised in the test suite and all those listed in the `Default values' section of c++.m4. Are there others? * data/push.c, data/yacc.c: Declare no valid %define variables. * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function, similar to muscle_find, but it works even when the muscle stores a const value. (muscle_grow_used_name_list): New function for constructing the used name list muscles that b4_check_for_unrecognized_names requires. * src/parse-gram.y (prologue_declaration): Warn if a variable is %define'd more than once. Define the b4_used_percent_define_variables muscle with muscle_grow_used_name_list. (grammar_declaration): Abbreviate %code code with muscle_grow_used_name_list. * tests/input.at (%define errors): New.
-*- 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.