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#ifndef _FDICT_H_
#define _FDICT_H_
#include <string>
#include <vector>
#include "dict.h"
struct FD {
// once the FD is frozen, new features not already in the
// dictionary will return 0
static void Freeze() {
frozen_ = true;
}
static inline int NumFeats() {
return dict_.max() + 1;
}
static inline WordID Convert(const std::string& s) {
return dict_.Convert(s, frozen_);
}
static inline const std::string& Convert(const WordID& w) {
return dict_.Convert(w);
}
// Escape any string to a form that can be used as the name
// of a weight in a weights file
static std::string Escape(const std::string& s);
static Dict dict_;
private:
static bool frozen_;
};
#endif
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