00001 /*************************************************************************** 00002 * Copyright (C) 2006 by Radko Mihal * 00003 * rmihal@pobox.sk * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU General Public License as published by * 00007 * the Free Software Foundation; either version 2 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU General Public License * 00016 * along with this program; if not, write to the * 00017 * Free Software Foundation, Inc., * 00018 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * 00019 ***************************************************************************/ 00020 #ifndef BRACKET_EXPRESSIONFOLLOW_LIST_AND_HYPHEN_H 00021 #define BRACKET_EXPRESSIONFOLLOW_LIST_AND_HYPHEN_H 00022 00023 namespace bracket_expression { 00024 00025 template<typename E> 00026 class follow_list_and_hyphen 00027 { 00028 grammar_to_parser::basic_choice<E,follow_list<E> > m_follow_list; 00029 grammar_to_parser::basic_terminal<E,'-'> m_hyphen; 00030 00031 public: 00032 unsigned long recognize( const E* buf, const unsigned long buf_length ) 00033 { 00034 unsigned long size = m_follow_list->recognize(buf,buf_length); 00035 if( size == 0 ) 00036 { 00037 if( buf[0] == m_hyphen.get_valid() ) 00038 { 00039 size = 1; 00040 } 00041 } 00042 return size; 00043 } 00044 follow_list_and_hyphen(); 00045 00046 ~follow_list_and_hyphen(); 00047 00048 }; 00049 00050 }; 00051 00052 #endif