alignmentphrase.h

moses开源的机器翻译系统

// $Id$
/***********************************************************************
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
***********************************************************************/

#pragma once

#include <vector>
#include <set>

class WordsRange;


class AlignmentElement
{
protected:
	std::set<size_t> m_elements;
public:
	typedef std::set<size_t>::iterator iterator;
	typedef std::set<size_t>::const_iterator const_iterator;
	const_iterator begin() const { return m_elements.begin(); }
	const_iterator end() const { return m_elements.end(); }

	AlignmentElement()
	{}

	size_t GetSize() const
	{
		return m_elements.size();
	}

	void Merge(size_t align);
};

class AlignmentPhrase
{
protected:
	std::vector<AlignmentElement> m_elements;
public:
	AlignmentPhrase(size_t size)
		:m_elements(size)
	{}
	void Merge(const AlignmentPhrase &newAlignment, const WordsRange &newAlignmentRange);
	void Merge(const std::vector< std::vector<size_t> > &source);
	size_t GetSize() const
	{
		return m_elements.size();
	}
	const AlignmentElement &GetElement(size_t pos) const
	{
		return m_elements[pos];
	}
};