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#pragma once
#include <vector>
#include "PatternApplicationTrie.h"
#include "SymbolRange.h"
namespace Moses
{
namespace Syntax
{
namespace S2T
{
class SymbolRangeCalculator
{
public:
void Calc(const PatternApplicationKey &, int, int,
std::vector<SymbolRange> &);
private:
// Provides contextual information used in determining a symbol's range.
struct AuxSymbolInfo {
int distanceToNextTerminal;
int distanceToPrevTerminal;
};
void FillInTerminalRanges(const PatternApplicationKey &,
std::vector<SymbolRange> &);
void FillInAuxSymbolInfo(const std::vector<SymbolRange> &);
void FillInGapRanges(const PatternApplicationKey &, int, int,
std::vector<SymbolRange> &);
std::vector<AuxSymbolInfo> m_auxSymbolInfo;
};
} // namespace S2T
} // namespace Syntax
} // namespace Moses
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