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automat.h

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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 _AUTOMAT
00030 #define _AUTOMAT
00031 
00032 #include <map> 
00033 #include <set>
00034 
00035 #include "language.h"
00036 #include "regexp.h"
00037 
00038 #define MAX_STATES 100
00039 #define MAX_TOKENS 50
00040 
00087 
00088 class automat {
00089  private:
00092       virtual int ComputeToken(int, sentence::const_iterator, const sentence &) =0;
00095       virtual void ResetActions() =0;
00099       virtual void StateActions(int, int, int, sentence::const_iterator) =0;
00102       virtual void SetMultiwordAnalysis(sentence::iterator) const =0;
00105       virtual bool ValidMultiWord(const word &) const;
00106 
00108       sentence::iterator BuildMultiword(sentence &,sentence::iterator,sentence::iterator) const;
00109 
00110  protected:
00112       int initialState;
00114       int stopState;
00116       int trans[MAX_STATES][MAX_TOKENS];
00118       set<int> Final;
00119 
00120  public:
00122       automat();
00124       virtual ~automat() {};
00125 
00127       void annotate(sentence &);
00128 };
00129 
00130 #endif
00131 

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