#include <iostream>
#include "expression.h"

using namespace std; 	//introduces namespace std
int main( void )
{
	expression expr;
	char ans;
	bool quit=false;
	do{
		cout << "Welcome to the expressions program. Please give me an appropriate expression." << endl;
		cin >> expr;
		
		expr.simplify();
		cout << "Again? ";
		cin >> ans;
		switch(ans)
		{
			case 'y':
			case 'Y': quit=true;
		}
	}while(!quit);
			 
		
	return 0;
}