static void lala(string[] args)
{
string s = "a=5*2";
Parser p = new Parser();
List <string> tokens = p.parse(s);
RPNInterpreter rpn = new RPNInterpreter();
double result = rpn.compute(tokens);
Console.WriteLine(result);
result = rpn.compute(tokens);
Console.WriteLine(result);
}
private static void start(string initialInput)
{
Parser parser = new Parser();
RPNInterpreter interpreter = new RPNInterpreter();
string input = initialInput;
do
{
if (String.IsNullOrEmpty(initialInput))
{
Console.Write("> ");
input = Console.ReadLine();
}
else
{
initialInput = "";
}
switch (input)
{
case "q":
Console.WriteLine("Bye!");
break;
default:
try
{
List <string> tokens = parser.parse(input);
double value = interpreter.compute(tokens);
if (value > Double.MaxValue)
{
value = Double.MaxValue;
}
Console.WriteLine(value);
}
catch (Exception e) {
Console.WriteLine("Illegal Expression!");
}
break;
}
} while (!input.Equals("q"));
}
