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// $Id$
/***********************************************************************
Moses - factored phrase-based, hierarchical and syntactic language decoder
Copyright (C) 2009 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
***********************************************************************/
#include <string>
#include <fstream>
#include "OnDiskWrapper.h"
#include "Vocab.h"
using namespace std;
namespace OnDiskPt
{
bool Vocab::Load(OnDiskWrapper &onDiskWrapper)
{
fstream &file = onDiskWrapper.GetFileVocab();
string line;
while(getline(file, line)) {
vector<string> tokens;
Moses::Tokenize(tokens, line);
CHECK(tokens.size() == 2);
const string &key = tokens[0];
m_vocabColl[key] = Moses::Scan<UINT64>(tokens[1]);
}
// create lookup
// assume contiguous vocab id
m_lookup.resize(m_vocabColl.size() + 1);
m_nextId = m_lookup.size();
CollType::const_iterator iter;
for (iter = m_vocabColl.begin(); iter != m_vocabColl.end(); ++iter) {
UINT32 vocabId = iter->second;
const std::string &word = iter->first;
m_lookup[vocabId] = word;
}
return true;
}
void Vocab::Save(OnDiskWrapper &onDiskWrapper)
{
fstream &file = onDiskWrapper.GetFileVocab();
CollType::const_iterator iterVocab;
for (iterVocab = m_vocabColl.begin(); iterVocab != m_vocabColl.end(); ++iterVocab) {
const string &word = iterVocab->first;
UINT32 vocabId = iterVocab->second;
file << word << " " << vocabId << endl;
}
}
UINT64 Vocab::AddVocabId(const std::string &str)
{
// find string id
CollType::const_iterator iter = m_vocabColl.find(str);
if (iter == m_vocabColl.end()) {
// add new vocab entry
m_vocabColl[str] = m_nextId;
return m_nextId++;
} else {
// return existing entry
return iter->second;
}
}
UINT64 Vocab::GetVocabId(const std::string &str, bool &found) const
{
// find string id
CollType::const_iterator iter = m_vocabColl.find(str);
if (iter == m_vocabColl.end()) {
found = false;
return 0; //return whatever
} else {
// return existing entry
found = true;
return iter->second;
}
}
}
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