00001 00002 // 00003 // FreeLing - Open Source Language Analyzers 00004 // 00005 // Copyright (C) 2004 TALP Research Center 00006 // Universitat Politecnica de Catalunya 00007 // 00008 // This library is free software; you can redistribute it and/or 00009 // modify it under the terms of the GNU Lesser General Public 00010 // License as published by the Free Software Foundation; either 00011 // version 2.1 of the License, or (at your option) any later version. 00012 // 00013 // This library is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 // Lesser General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU Lesser General Public 00019 // License along with this library; if not, write to the Free Software 00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00021 // 00022 // contact: Lluis Padro (padro@lsi.upc.es) 00023 // TALP Research Center 00024 // despatx C6.212 - Campus Nord UPC 00025 // 08034 Barcelona. SPAIN 00026 // 00028 00029 #ifndef _CONSTR_GRAMMAR 00030 #define _CONSTR_GRAMMAR 00031 00032 #include <string> 00033 #include <list> 00034 #include <map> 00035 00036 #include "tokens.h" 00037 00041 00042 class condition { 00043 private: 00045 bool neg; 00047 int pos; 00049 bool starpos; 00051 list<string> terms; 00053 list <string> barrier; 00054 00055 public: 00057 condition(); 00058 00060 void clear(); 00062 void set_neg(bool); 00064 void set_pos(int,bool); 00066 void set_terms(const list<string>&); 00068 void set_barrier(const list<string>&); 00070 bool is_neg() const; 00072 int get_pos() const; 00074 bool has_star() const; 00076 list<string> get_terms() const; 00078 bool has_barrier() const; 00080 list<string> get_barrier() const; 00081 }; 00082 00083 00087 00088 class ruleCG : public list<condition> { 00089 protected: 00091 double weight; 00093 string head; 00094 00095 public: 00097 ruleCG(); 00098 00100 void set_head(const string &); 00102 void set_weight(double); 00104 string get_head() const; 00106 double get_weight() const; 00107 }; 00108 00113 00114 class constraint_grammar : public multimap<string,ruleCG> { 00115 00116 public: 00118 constraint_grammar(const string &); 00119 00121 void get_rules_head(const string &, list<ruleCG> &) const; 00122 }; 00123 00124 #endif 00125 00126 00127 00128 00129