#ifndef _TDICT_H_
#define _TDICT_H_

#include <string>
#include <vector>
#include "wordid.h"
#include <assert.h>

class Dict;

struct TD {
  static WordID end(); // next id to be assigned; [begin,end) give the non-reserved tokens seen so far
  static void ConvertSentence(std::string const& sent, std::vector<WordID>* ids);
  static void GetWordIDs(const std::vector<std::string>& strings, std::vector<WordID>* ids);
  static std::string GetString(const std::vector<WordID>& str);
  static std::string GetString(WordID const* i,WordID const* e);
  static int AppendString(const WordID& w, int pos, int bufsize, char* buffer);
  static unsigned int NumWords();
  static WordID Convert(const std::string& s);
  static WordID Convert(char const* s);
  static const char* Convert(WordID w);
 private:
  static Dict dict_;
};

struct ToTD {
  typedef WordID result_type;
  result_type operator()(std::string const& t) const {
    return TD::Convert(t);
  }
};


#endif