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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#ifndef moses_DecodeStepTranslation_h
#define moses_DecodeStepTranslation_h
#include "DecodeStep.h"
#include "moses/TranslationModel/PhraseDictionary.h"
#include "InputPath.h"
namespace Moses
{
class PhraseDictionary;
class TargetPhrase;
class InputPath;
//! subclass of DecodeStep for translation step
class DecodeStepTranslation : public DecodeStep
{
public:
DecodeStepTranslation(); //! not implemented
DecodeStepTranslation(PhraseDictionary* phraseFeature,
const DecodeStep* prev,
const std::vector<FeatureFunction*> &features);
virtual void Process(const TranslationOption &inputPartialTranslOpt
, const DecodeStep &decodeStep
, PartialTranslOptColl &outputPartialTranslOptColl
, TranslationOptionCollection *toc
, bool adhereTableLimit
, TargetPhraseCollection::shared_ptr phraseColl) const;
/*! initialize list of partial translation options by applying the first translation step
* Ideally, this function should be in DecodeStepTranslation class
*/
void ProcessInitialTranslation(const InputType &source
, PartialTranslOptColl &outputPartialTranslOptColl
, size_t startPos, size_t endPos, bool adhereTableLimit
, const InputPath &inputPath
, TargetPhraseCollection::shared_ptr phraseColl) const;
// legacy
void
ProcessInitialTransLEGACY(InputType const& source,
PartialTranslOptColl &outputPartialTranslOptColl,
size_t startPos, size_t endPos,
bool adhereTableLimit,
InputPathList const& inputPathList) const;
void ProcessLEGACY(const TranslationOption &inputPartialTranslOpt
, const DecodeStep &decodeStep
, PartialTranslOptColl &outputPartialTranslOptColl
, TranslationOptionCollection *toc
, bool adhereTableLimit) const;
private:
// I'm not sure whether this actually works or not for binary phrase table.
// The source phrase only appears to contain the 1st word, therefore, this function
// only compares the 1st word
const InputPath &GetInputPathLEGACY(const TargetPhrase targetPhrase,
const Phrase sourcePhrase,
const InputPathList &inputPathList) const;
};
}
#endif
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