boss_fsa.h

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/* boss_fsa.h    $Revision: 1.3 $ $Date: 2005/12/10 20:33:54 $
   Copyright (C) 2000 University of Bonn.
   http://www.ikp.uni-bonn.de/boss

   This program 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 2
   of the License, or (at your option) any later version.

   This program 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 program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA  02111-1307, USA.
*/

#ifndef BOSS_FSA_H
#define BOSS_FSA_H

using namespace std;

#include "boss_types.h"
#include "boss_exceptions.h"
#include <regex.h>
#include <iterator>

namespace BOSS
{
  struct NoRegexMatch {
    string name;
    string inf;
    NoRegexMatch(const string & N, const string & I, const bool f = false) :
      name(N), inf(I) { if(f) printError(false); }
    void printError(const bool & fatal = false) const
    {
      if(fatal) {
        cerr << name << " : Fatal: Unknown phone symbol in: " << inf << endl; exit(-1);
      }
      else {
        cerr << name << " : Unknown phone symbol in: " << inf << ". Ignoring!" << endl;
      }
    }
  };
}

namespace BOSS
{
 
  class FSA {

  protected:
    regex_t preg;
    FSA() {}

  public:
    FSA(const string & filename) throw(BOSS::FileOpenError, BOSS::FileFormatError);

    FSA(const BOSS::t_SVector & expressions) throw(BOSS::FileFormatError);

    ~FSA();

    BOSS::t_SVector parse(const string & trans) const throw(BOSS::NoRegexMatch);
  };
}
#endif

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