maple.h

this is a lp0 compilator new

//
// *********************************************************************
// *
// *  	Author      	: Gerald Carter
// *                   	  [e-mail]
// *   	Filename      	: maple.h
// *   	Date Created  	: 960404
// *
// *   	Description : 	This is the header file for a C++ class
// *       		implementation of a maple expression tree.
// *
// *	--------------------
// *	Modifications
// *	--------------------
// *
// *********************************************************************
//

// Test for multiple inclusion
#ifndef _MAPLE_H
#define _MAPLE_H

// Class declaration Tag
class mapleNode;

// INCLUDE FILES
#include <string.h>
#include "syntax.h"

// ####################################################################
// ## class mapleNode : public syntaxNode
// ##
class mapleNode : public syntaxNode {
   private :
      int 		value;
      syntaxNode	**syntaxTrees;
      char		*expr_string;

      // used to generate the recurrence equation for the 'rsolve' command
      int EvaluateExpressionTree ( ostream&, int );

   public :
      // CONSTRUCTOR
      mapleNode ( void ) { 
         value = 0; 
         syntaxTrees = 0; 
         expr_string = 0;
      }
      ~mapleNode ( void )
         { delete []syntaxTrees; }

      // GENERAL METHODS
      int SetValue ( int x ) {
         value = x; 
         return ( x ); 
      }
      int GetValue ( void ) { return value; }
      int NumberOfSyntaxTrees ( int i ) { syntaxTrees = new (syntaxNode*)[i]; }
      int SetSyntaxTree ( syntaxNode* item, int i ) { syntaxTrees[i] = item; }
      syntaxNode* GetSyntaxTree ( int i ) { return ( syntaxTrees[i] ); }
      char* GetExprString ( void ) { return ( expr_string ); }
      char* SetExprString ( char* str)
        { return ( expr_string = strdup ( str ) ); }
         

      // Output functions
      void PrintTree ( ostream& );
      void PrintTreeLabels ( ostream& );
};      // end of class mapleNode

#endif

//********* end of maple.h *******************************************
//********************************************************************