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/*
* InputPaths.cpp
*
* Created on: 23 Oct 2015
* Author: hieu
*/
#include <boost/foreach.hpp>
#include <iostream>
#include "InputPaths.h"
#include "Sentence.h"
#include "../System.h"
#include "../legacy/Range.h"
#include "Manager.h"
#include "InputPath.h"
#include "Word.h"
using namespace std;
namespace Moses2
{
namespace SCFG
{
void InputPaths::Init(const InputType &input, const ManagerBase &mgr)
{
const Sentence &sentence = static_cast<const Sentence&>(input);
MemPool &pool = mgr.GetPool();
size_t numPt = mgr.system.mappings.size();
size_t size = sentence.GetSize();
//cerr << "size=" << size << endl;
m_matrix = new (pool.Allocate< Matrix<SCFG::InputPath*> >()) Matrix<SCFG::InputPath*>(pool,
size, size + 1);
m_matrix->Init(NULL);
for (size_t startPos = 0; startPos < size; ++startPos) {
// create path for 0 length string
Range range(startPos, startPos - 1);
SubPhrase<SCFG::Word> subPhrase = sentence.GetSubPhrase(startPos, 0);
SCFG::InputPath *path = new (pool.Allocate<SCFG::InputPath>()) SCFG::InputPath(pool,
subPhrase, range, numPt, NULL);
//cerr << "path=" << *path << endl;
m_inputPaths.push_back(path);
m_matrix->SetValue(startPos, 0, path);
// create normal paths of subphrases through the sentence
const SCFG::InputPath *prefixPath = path;
for (size_t phaseSize = 1; phaseSize <= size; ++phaseSize) {
size_t endPos = startPos + phaseSize - 1; // pb-like indexing. eg. [1-1] covers 1 word, NOT 0
if (endPos >= size) {
break;
}
SubPhrase<SCFG::Word> subPhrase = sentence.GetSubPhrase(startPos, phaseSize);
Range range(startPos, endPos);
SCFG::InputPath *path = new (pool.Allocate<SCFG::InputPath>())
SCFG::InputPath(pool, subPhrase, range, numPt, prefixPath);
//cerr << "path=" << *path << endl;
m_inputPaths.push_back(path);
prefixPath = path;
m_matrix->SetValue(startPos, phaseSize, path);
}
}
}
std::string InputPaths::Debug(const System &system) const
{
stringstream out;
const Matrix<InputPath*> &matrix = GetMatrix();
for (size_t i = 0; i < matrix.GetRows(); ++i) {
for (size_t j = 0; j < matrix.GetCols(); ++j) {
SCFG::InputPath *path = matrix.GetValue(i, j);
if (path) {
out << path->Debug(system);
out << endl;
}
}
}
return out.str();
}
}
}
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