inputtype.cpp.svn-base

moses开源的机器翻译系统

// $Id$
// vim:tabstop=2

/***********************************************************************
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 <cstdlib>

#include "InputType.h"

InputType::InputType(long translationId) : m_translationId(translationId) {}
InputType::~InputType() {}

TO_STRING_BODY(InputType);

std::ostream& operator<<(std::ostream& out,InputType const& x) 
{
	x.Print(out); return out;
}

// default implementation is one column equals one word
int InputType::ComputeDistortionDistance(const WordsRange& prev, const WordsRange& current) const
{
  int dist = 0;
	if (prev.GetNumWordsCovered() == 0) {
	  dist = current.GetStartPos();
	} else {
	  dist = (int)prev.GetEndPos() - (int)current.GetStartPos() + 1 ;
	}
	return abs(dist);
}

bool InputType::CanIGetFromAToB(size_t start, size_t end) const
{
  return true;
}