alphabet.h

/*
 *
 *  This is alphabet.h
 *  
 *
 *  
 */

#ifndef ALPHABET_H
#define ALPHABET_H

#include <bitset>
#define ALPHABET_LIMIT = 128

using namespace std;

class alphabet{
  private:  
    bitset<129> alphaSymbols; //there is some sort of an assumption that there will be 128 characters only 
          //the last bitset is reserved for epsilons
          // this display for the bitset is as you would read a binay number. setting 128 will end up setting the msb and will be seen first in the array. 
  public:
  alphabet();
  alphabet (char * );		
  bool setAlphaSymbols (char * );
  bool setAlphaSymbol (int );
  alphabet operator + (alphabet );


  alphabet operator * (alphabet );


  alphabet operator - (alphabet );
  
  bool isMember(int );
  
  bool isMember(char );
  
  
  void disp ();
  
  friend ostream& operator << (ostream& , alphabet& );
  friend istream& operator >> (istream& , alphabet& );


};


ostream& operator << (ostream& , alphabet& );


istream& operator >> (istream& , alphabet& );

#endif