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https://github.com/moses-smt/mosesdecoder.git
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100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
// $Id$
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/***********************************************************************
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Moses - factored phrase-based, hierarchical and syntactic language decoder
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Copyright (C) 2009 Hieu Hoang
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#include <string>
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#include <fstream>
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#include "OnDiskWrapper.h"
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#include "Vocab.h"
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using namespace std;
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namespace OnDiskPt
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{
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bool Vocab::Load(OnDiskWrapper &onDiskWrapper)
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{
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fstream &file = onDiskWrapper.GetFileVocab();
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string line;
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while(getline(file, line)) {
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vector<string> tokens;
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Moses::Tokenize(tokens, line);
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CHECK(tokens.size() == 2);
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const string &key = tokens[0];
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m_vocabColl[key] = Moses::Scan<UINT64>(tokens[1]);
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}
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// create lookup
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// assume contiguous vocab id
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m_lookup.resize(m_vocabColl.size() + 1);
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m_nextId = m_lookup.size();
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CollType::const_iterator iter;
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for (iter = m_vocabColl.begin(); iter != m_vocabColl.end(); ++iter) {
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UINT32 vocabId = iter->second;
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const std::string &word = iter->first;
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m_lookup[vocabId] = word;
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}
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return true;
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}
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void Vocab::Save(OnDiskWrapper &onDiskWrapper)
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{
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fstream &file = onDiskWrapper.GetFileVocab();
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CollType::const_iterator iterVocab;
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for (iterVocab = m_vocabColl.begin(); iterVocab != m_vocabColl.end(); ++iterVocab) {
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const string &word = iterVocab->first;
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UINT32 vocabId = iterVocab->second;
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file << word << " " << vocabId << endl;
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}
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}
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UINT64 Vocab::AddVocabId(const std::string &str)
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{
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// find string id
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CollType::const_iterator iter = m_vocabColl.find(str);
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if (iter == m_vocabColl.end()) {
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// add new vocab entry
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m_vocabColl[str] = m_nextId;
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return m_nextId++;
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} else {
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// return existing entry
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return iter->second;
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}
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}
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UINT64 Vocab::GetVocabId(const std::string &str, bool &found) const
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{
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// find string id
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CollType::const_iterator iter = m_vocabColl.find(str);
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if (iter == m_vocabColl.end()) {
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found = false;
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return 0; //return whatever
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} else {
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// return existing entry
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found = true;
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return iter->second;
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}
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}
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}
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