1 /* Grammar reduction for Bison. 2 3 Copyright (C) 2000-2002, 2007, 2009-2012 Free Software Foundation, 4 Inc. 5 6 This file is part of Bison, the GNU Compiler Compiler. 7 8 This program is free software: you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation, either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 20 21 #ifndef REDUCE_H_ 22 # define REDUCE_H_ 23 24 void reduce_grammar (void); 25 void reduce_output (FILE *out); 26 bool reduce_token_unused_in_grammar (symbol_number i); 27 bool reduce_nonterminal_useless_in_grammar (symbol_number i); 28 void reduce_free (void); 29 30 extern symbol_number nuseless_nonterminals; 31 extern rule_number nuseless_productions; 32 #endif /* !REDUCE_H_ */ 33