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// $Id$
// vim:tabstop=2
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2010 Hieu Hoang
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 <boost/ptr_container/ptr_vector.hpp>
#include "InputType.h"
#include "ChartCell.h"
#include "Range.h"
#include "InputPath.h"
namespace Moses
{
class InputType;
class ChartManager;
class ChartParser;
class ChartCellCollectionBase
{
public:
template <class Factory> ChartCellCollectionBase(const InputType &input,
const Factory &factory,
const ChartParser &parser)
:m_cells(input.GetSize()) {
size_t size = input.GetSize();
for (size_t startPos = 0; startPos < size; ++startPos) {
std::vector<ChartCellBase*> &inner = m_cells[startPos];
inner.reserve(size - startPos);
for (size_t endPos = startPos; endPos < size; ++endPos) {
inner.push_back(factory(startPos, endPos));
}
/* Hack: ChartCellLabel shouldn't need to know its span, but the parser
* gets it from there :-(. The span is actually stored as a reference,
* which needs to point somewhere, so I have it refer to the ChartCell.
*/
const Range &range = inner[0]->GetCoverage();
m_source.push_back(new ChartCellLabel(range, input.GetWord(startPos)));
}
}
virtual ~ChartCellCollectionBase();
const ChartCellBase &GetBase(const Range &coverage) const {
return *m_cells[coverage.GetStartPos()][coverage.GetEndPos() - coverage.GetStartPos()];
}
ChartCellBase &MutableBase(const Range &coverage) {
return *m_cells[coverage.GetStartPos()][coverage.GetEndPos() - coverage.GetStartPos()];
}
const ChartCellLabel &GetSourceWordLabel(size_t at) const {
return m_source[at];
}
private:
std::vector<std::vector<ChartCellBase*> > m_cells;
boost::ptr_vector<ChartCellLabel> m_source;
};
/** Hold all the chart cells for 1 input sentence. A variable of this type is held by the ChartManager
*/
class ChartCellCollection : public ChartCellCollectionBase
{
public:
ChartCellCollection(const InputType &input, ChartManager &manager);
//! get a chart cell for a particular range
ChartCell &Get(const Range &coverage) {
return static_cast<ChartCell&>(MutableBase(coverage));
}
//! get a chart cell for a particular range
const ChartCell &Get(const Range &coverage) const {
return static_cast<const ChartCell&>(GetBase(coverage));
}
};
}
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