#ifndef BUFFER_DOT_H
#define BUFFER_DOT_H

class BufferT{
   public:
      BufferT(std::string filename, int size=20);
      ~BufferT();
      std::string GetLexeme();
      char NextLetter();
      void ResetForward();
      void RetractForward();
   private:
       // don't want em.
       BufferT(const BufferT & b);
       BufferT & operator=(const BufferT &);

       // buffer maintenance
       char * OtherBuffer();
       void ReloadBuffer();
       bool IsInCurrent(char *);

       int fd;
       int bufferSize;
       char * buffer1, * buffer2;
       char *lexemeBegin,* forward;
       char * currentBuffer;
       bool doReload;
};

const char EOF = '\0';

#endif