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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 "moses/FactorCollection.h"
#include "moses/Util.h"
#include "moses/Word.h"
#include "Word.h"
#include "util/tokenize_piece.hh"
#include "util/exception.hh"
using namespace std;
namespace OnDiskPt
{
Word::Word(const Word ©)
:m_isNonTerminal(copy.m_isNonTerminal)
,m_vocabId(copy.m_vocabId)
{}
Word::~Word()
{}
void Word::CreateFromString(const std::string &inString, Vocab &vocab)
{
if (inString.substr(0, 1) == "[" && inString.substr(inString.size() - 1, 1) == "]") {
// non-term
m_isNonTerminal = true;
string str = inString.substr(1, inString.size() - 2);
m_vocabId = vocab.AddVocabId(str);
} else {
m_isNonTerminal = false;
m_vocabId = vocab.AddVocabId(inString);
}
}
size_t Word::WriteToMemory(char *mem) const
{
UINT64 *vocabMem = (UINT64*) mem;
vocabMem[0] = m_vocabId;
size_t size = sizeof(UINT64);
// is non-term
char bNonTerm = (char) m_isNonTerminal;
mem[size] = bNonTerm;
++size;
return size;
}
size_t Word::ReadFromMemory(const char *mem)
{
UINT64 *vocabMem = (UINT64*) mem;
m_vocabId = vocabMem[0];
size_t memUsed = sizeof(UINT64);
// is non-term
char bNonTerm;
bNonTerm = mem[memUsed];
m_isNonTerminal = (bool) bNonTerm;
++memUsed;
return memUsed;
}
size_t Word::ReadFromFile(std::fstream &file)
{
const size_t memAlloc = sizeof(UINT64) + sizeof(char);
char mem[sizeof(UINT64) + sizeof(char)];
file.read(mem, memAlloc);
size_t memUsed = ReadFromMemory(mem);
assert(memAlloc == memUsed);
return memAlloc;
}
void Word::ConvertToMoses(
const std::vector<Moses::FactorType> &outputFactorsVec,
const Vocab &vocab,
Moses::Word &overwrite) const
{
Moses::FactorCollection &factorColl = Moses::FactorCollection::Instance();
overwrite = Moses::Word(m_isNonTerminal);
// TODO: this conversion should have been done at load time.
util::TokenIter<util::SingleCharacter> tok(vocab.GetString(m_vocabId), '|');
for (std::vector<Moses::FactorType>::const_iterator t = outputFactorsVec.begin(); t != outputFactorsVec.end(); ++t, ++tok) {
UTIL_THROW_IF2(!tok, "Too few factors in \"" << vocab.GetString(m_vocabId) << "\"; was expecting " << outputFactorsVec.size());
overwrite.SetFactor(*t, factorColl.AddFactor(*tok));
}
UTIL_THROW_IF2(tok, "Too many factors in \"" << vocab.GetString(m_vocabId) << "\"; was expecting " << outputFactorsVec.size());
}
int Word::Compare(const Word &compare) const
{
int ret;
if (m_isNonTerminal != compare.m_isNonTerminal)
return m_isNonTerminal ?-1 : 1;
if (m_vocabId < compare.m_vocabId)
ret = -1;
else if (m_vocabId > compare.m_vocabId)
ret = 1;
else
ret = 0;
return ret;
}
bool Word::operator<(const Word &compare) const
{
int ret = Compare(compare);
return ret < 0;
}
bool Word::operator==(const Word &compare) const
{
int ret = Compare(compare);
return ret == 0;
}
void Word::DebugPrint(ostream &out, const Vocab &vocab) const
{
const string &str = vocab.GetString(m_vocabId);
out << str;
}
std::ostream& operator<<(std::ostream &out, const Word &word)
{
out << "(";
out << word.m_vocabId;
out << (word.m_isNonTerminal ? "n" : "t");
out << ")";
return out;
}
}
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