mosesdecoder/moses/TranslationOptionCollectionText.cpp

78 lines
2.7 KiB
C++

// $Id$
/***********************************************************************
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
***********************************************************************/
#include "TranslationOptionCollectionText.h"
#include "Sentence.h"
#include "DecodeStep.h"
#include "moses/TranslationModel/PhraseDictionaryMemory.h"
#include "FactorCollection.h"
#include "WordsRange.h"
using namespace std;
namespace Moses
{
/** constructor; just initialize the base class */
TranslationOptionCollectionText::TranslationOptionCollectionText(const TranslationSystem* system, Sentence const &inputSentence, size_t maxNoTransOptPerCoverage, float translationOptionThreshold)
: TranslationOptionCollection(system, inputSentence, maxNoTransOptPerCoverage, translationOptionThreshold) {}
/* forcibly create translation option for a particular source word.
* For text, this function is easy, just call the base class' ProcessOneUnknownWord()
*/
void TranslationOptionCollectionText::ProcessUnknownWord(size_t sourcePos)
{
const Word &sourceWord = m_source.GetWord(sourcePos);
ProcessOneUnknownWord(sourceWord,sourcePos);
}
/**
* Check the source sentence for coverage data
*/
bool TranslationOptionCollectionText::HasXmlOptionsOverlappingRange(size_t startPosition, size_t endPosition) const
{
Sentence const& source=dynamic_cast<Sentence const&>(m_source);
return source.XmlOverlap(startPosition,endPosition);
}
/**
* Create xml-based translation options for the specific input span
*/
void TranslationOptionCollectionText::CreateXmlOptionsForRange(size_t startPosition, size_t endPosition)
{
Sentence const& source=dynamic_cast<Sentence const&>(m_source);
vector <TranslationOption*> xmlOptions;
source.GetXmlTranslationOptions(xmlOptions,startPosition,endPosition);
//get vector of TranslationOptions from Sentence
for(size_t i=0; i<xmlOptions.size(); i++) {
xmlOptions[i]->CalcScore(m_system);
Add(xmlOptions[i]);
}
};
}