alternatives.h

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//
//    FreeLing - Open Source Language Analyzers
//
//    Copyright (C) 2014   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 Affero 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
//    Affero General Public License for more details.
//
//    You should have received a copy of the GNU Affero 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 _ALTERNATIVES_H
#define _ALTERNATIVES_H

#include <map>

#include "freeling/windll.h"
#include "freeling/regexp.h"
#include "freeling/morfo/language.h"
#include "freeling/morfo/dictionary.h"
#include "freeling/morfo/processor.h"
#include "freeling/morfo/phonetics.h"
#include "freeling/morfo/foma_FSM.h"

namespace freeling {


  class WINDLL alternatives : public processor {
  private:
    foma_FSM *sed;
    foma_FSM *comp;

    std::multimap<std::wstring,std::wstring> orthography;

    phonetics* ph;

    int DistanceThreshold;

    int MaxSizeDiff;

    freeling::regexp CheckKnownTags;
    bool CheckUnknown;

    static const int ORTHOGRAPHIC = 1;
    static const int PHONETIC = 2;
    int DistanceType;

    void filter_candidate(const std::wstring &, const std::wstring &, int distance, std::map<std::wstring,int> &) const;
    void filter_alternatives(const std::list<std::pair<std::wstring,int> >&, word &) const;

    std::list<std::wstring> recover_words(std::list<std::wstring> wds) const;
    
  public:
    alternatives(const std::wstring &);
    ~alternatives();

    void get_similar_words(const std::wstring &, std::list<std::pair<std::wstring,int> > &) const;
    
    void analyze(sentence &) const;

    using processor::analyze;
  };

} // namespace

#endif