DeSR Dependency Parser

src/SentenceReader.h

/*
**  DeSR
**  src/SentenceReader.h
** ----------------------------------------------------------------------
**  Copyright (c) 2006  Giuseppe Attardi (attardi@di.unipi.it).
** ----------------------------------------------------------------------
**
**  This file is part of DeSR.
**
**  DeSR is free software; you can redistribute it and/or modify it
**  under the terms of the GNU General Public License, version 3,
**  as published by the Free Software Foundation.
**
**  DeSR 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, see <http://www.gnu.org/licenses/>.
**  ----------------------------------------------------------------------
*/

#ifndef DeSR_SentenceReader_H
#define DeSR_SentenceReader_H

// library
#include "text/RegExp.h"
#include "text/XmlReader.h"

// standard
#include <istream>

// local
#include "PosTagger.h"
#include "Sentence.h"
#include "Enumerator.h"

namespace Tanl {

class Corpus;

class SentenceReader : public Enumerator<Sentence*>
{
public:

  SentenceReader() { }

  SentenceReader(std::istream* is, Corpus* corpus);

  virtual bool          MoveNext();

  virtual Sentence*     Current();

  virtual void          reset() {}

  virtual ~SentenceReader() {}

  Corpus*       corpus;

protected:
  Sentence*             sentence; 
  std::istream*         is;     
};

class ConllXSentenceReader : public SentenceReader
{
public:

  ConllXSentenceReader(std::istream* is, Corpus* corpus);

  bool          MoveNext();

  MorphExtractor const& morphExtractor;
};

class DgaSentenceReader : public SentenceReader
{
 public:

  DgaSentenceReader(std::istream* is, Corpus* corpus);

  bool          MoveNext();

 private:
  Tanl::XML::XmlReader  reader;
};

class TokenSentenceReader : public SentenceReader
{
 public:

  TokenSentenceReader(std::istream* is, Corpus* corpus = 0);

  bool          MoveNext();

 private:
  static Tanl::Text::RegExp::Pattern reTok;

# ifdef STEMMER
  sb_stemmer* stemmer;
# endif
};

class TaggedSentenceReader : public SentenceReader
{
 public:
  TaggedSentenceReader(SentenceReader* reader, Parser::PosTagger* tagger) :
    reader(reader),
    tagger(tagger)
      { }

  bool                  MoveNext();

  SentenceReader*       reader;
  Parser::PosTagger*            tagger;

};

} // namespace Tanl

#endif // DeSR_SentenceReader_H

 

Copyright © 2005-2007 G. Attardi. Generated on 13 Aug 2009 by doxygen 1.5.7.1.