// Token.h     Dave Reed      9/30/03
//
// Token class -- used to represent a token (language element)
//     Note: utilizes an enumerated type for the different token types
//        TOKEN_TYPE = STRING, INTEGER, IDENTIFIER, KEYWORD, OPERATOR, or UNKNOWN
//
//     constructor: create a Token by specifying value and type 
//       (if no arguments are specified, the default Token is UNKNOWN)
//       e.g., Token t("x1", IDENTIFIER);
//             Token u;
//
//      public member functions:
//         string GetValue();  	        // returns the value of the token
//         void SetValue(string v);     // set the value of the token
//         TOKEN_TYPE GetType();        // returns the type of the token
//         void SetType(TOKEN_TYPE t);  // sets the type of the token
/////////////////////////////////////////////////////////////////////////////////

#ifndef _TOKEN_
#define _TOKEN_

#include <string>
using namespace std;

enum TOKEN_TYPE {STRING, INTEGER, IDENTIFIER, KEYWORD, OPERATOR, UNKNOWN};

class Token								
{									
  public:
	Token(string v = "", TOKEN_TYPE t = UNKNOWN);
	string GetValue() const;
	void SetValue(string v);
	TOKEN_TYPE GetType() const;
	void SetType(TOKEN_TYPE t);
  private:
	string value;
	TOKEN_TYPE type;
};

#endif