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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_PCNTools
#define moses_PCNTools
#include <vector>
#include <map>
#include <string>
#include <utility>
#include <cstdlib>
/** A couple of utilities to read .pcn files. A python-compatible format
* for encoding confusion networks and word lattices.
*/
namespace PCN
{
struct CNAlt {
CNAlt() {
}
CNAlt(const std::string &word,
const std::vector<float> &denseFeatures,
const std::map<std::string, float> &sparseFeatures,
size_t next)
:m_word(word)
,m_denseFeatures(denseFeatures)
,m_sparseFeatures(sparseFeatures)
,m_next(next) {
}
std::string m_word;
std::vector<float> m_denseFeatures;
std::map<std::string, float> m_sparseFeatures;
size_t m_next;
};
//typedef std::pair<std::pair<std::string, std::vector<float> >, size_t> CNAlt;
typedef std::vector<CNAlt> CNCol;
typedef std::vector<CNCol> CN;
/** Given a string ((('foo',0.1,1),('bar',0.9,2)),...) representation of a
* word lattice in PCN format, return a CN object representing the lattice
*/
CN parsePCN(const std::string& in);
};
#endif
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