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#include <vector>
#include "DeleteRules.h"
#include "moses/ScoreComponentCollection.h"
#include "moses/TargetPhrase.h"
#include "moses/InputFileStream.h"
#include "util/exception.hh"
using namespace std;
namespace Moses
{
DeleteRules::DeleteRules(const std::string &line)
:StatelessFeatureFunction(1, line)
{
m_tuneable = false;
ReadParameters();
}
void DeleteRules::Load(AllOptions::ptr const& opts)
{
m_options = opts;
std::vector<FactorType> factorOrder;
factorOrder.push_back(0); // unfactored for now
InputFileStream strme(m_path);
string line;
while (getline(strme, line)) {
vector<string> toks = TokenizeMultiCharSeparator(line, "|||");
UTIL_THROW_IF2(toks.size() != 2, "Line must be source ||| target");
Phrase source, target;
source.CreateFromString(Input, factorOrder, toks[0], NULL);
target.CreateFromString(Output, factorOrder, toks[1], NULL);
size_t hash = 0;
boost::hash_combine(hash, source);
boost::hash_combine(hash, target);
m_ruleHashes.insert(hash);
}
}
void DeleteRules::EvaluateInIsolation(const Phrase &source
, const TargetPhrase &target
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection &estimatedScores) const
{
// dense scores
size_t hash = 0;
boost::hash_combine(hash, source);
boost::hash_combine(hash, target);
boost::unordered_set<size_t>::const_iterator iter;
iter = m_ruleHashes.find(hash);
if (iter != m_ruleHashes.end()) {
scoreBreakdown.PlusEquals(this, -std::numeric_limits<float>::infinity());
}
}
void DeleteRules::EvaluateWithSourceContext(const InputType &input
, const InputPath &inputPath
, const TargetPhrase &targetPhrase
, const StackVec *stackVec
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection *estimatedScores) const
{}
void DeleteRules::EvaluateTranslationOptionListWithSourceContext(const InputType &input
, const TranslationOptionList &translationOptionList) const
{}
void DeleteRules::EvaluateWhenApplied(const Hypothesis& hypo,
ScoreComponentCollection* accumulator) const
{}
void DeleteRules::EvaluateWhenApplied(const ChartHypothesis &hypo,
ScoreComponentCollection* accumulator) const
{}
void DeleteRules::SetParameter(const std::string& key, const std::string& value)
{
if (key == "path") {
m_path = value;
} else {
StatelessFeatureFunction::SetParameter(key, value);
}
}
}
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