fex.h

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//
//    FreeLing - Open Source Language Analyzers
//
//    Copyright (C) 2004   TALP Research Center
//                         Universitat Politecnica de Catalunya
//
//    This library 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 3 of the License, or (at your option) any later version.
//
//    This library 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 this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
//    contact: Lluis Padro (padro@lsi.upc.es)
//             TALP Research Center
//             despatx C6.212 - Campus Nord UPC
//             08034 Barcelona.  SPAIN
//

#ifndef _FEX
#define _FEX

#include <vector>
#include <set>
#include <list>

#include "freeling/morfo/fex_rule.h"
#include "freeling/morfo/fex_lexicon.h"

#define ENCODE_NAME 0x01
#define ENCODE_INT  0x02


class fex {
 private:
  std::list<fex_rulepack> packs;
  fex_lexicon lex;
  void get_features(const sentence &, std::vector<std::set<std::wstring> > &, std::vector<std::set<int> > &, int);
  void read_condition(std::wistringstream &, const std::wstring &, std::list<fex_condition> &, int &);
  void precompute_once(fex_rulepack &, const sentence &);
  void precompute_range(fex_rulepack &, const sentence &);

 public:
  fex(const std::wstring&, const std::wstring&, const std::map<std::wstring,const feature_function *> &);

  void encode_name(const sentence &, std::vector<std::set<std::wstring> > &);
  void encode_int(const sentence &, std::vector<std::set<int> > &);
  void encode_all(const sentence &, std::vector<std::set<std::wstring> > &, std::vector<std::set<int> > &);

  std::vector<std::set<std::wstring> > encode_name(const sentence &);
  std::vector<std::set<int> > encode_int(const sentence &);

  void clear_lexicon(); 
  void encode_to_lexicon(const sentence &);
  void save_lexicon(const std::wstring &, double) const;
};

#endif