/* FILE: rn.cpp
 * driver for object-oriented roman number calculator, P8
 */

#include <cmath>
#include <iostream>
#include "RomanNum.h"
using namespace std;

//main() ------------------------------------------------------------
//
int main(){
   RomanNum r1, r2, result;
   char op;

   //prompt and read
   cout << "Enter RomanNumeral Expression (ctrl-d to Exit) : ";
   cin >> r1 >> op >> r2;

   while(cin){
     //evaluate expression
     result = apply(r1, op, r2);

      //display results
      cout << endl << r1 << " (" << r1.toDec() << ") "
           << op << ' ' << r2 << " (" << r2.toDec() << ") = "
	   << result << " (" << result.toDec() << ") " << endl << endl;

      //prompt and read
      cout << "Enter RomanNumeral Expression (ctrl-d to Exit) : ";
      cin >> r1 >> op >> r2;
   }
   cout << endl << "Exiting..." << endl;
}