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#ifndef LM_COMMON_SPECIAL_H
#define LM_COMMON_SPECIAL_H
#include "../word_index.hh"
namespace lm {
class SpecialVocab {
public:
SpecialVocab(WordIndex bos, WordIndex eos) : bos_(bos), eos_(eos) {}
bool IsSpecial(WordIndex word) const {
return word == kUNK || word == bos_ || word == eos_;
}
WordIndex UNK() const { return kUNK; }
WordIndex BOS() const { return bos_; }
WordIndex EOS() const { return eos_; }
private:
WordIndex bos_;
WordIndex eos_;
};
} // namespace lm
#endif // LM_COMMON_SPECIAL_H
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