public static void Main(string[] args)
{
if (args.Length == 0 || args.Length > 1)
{
Console.WriteLine("Usage : Expr \"<expr>\" \n");
Console.WriteLine(" eg:- Expr \"2*3+4\" \n");
Console.WriteLine(" Expr \"-2-3\" \n");
return;
}
try {
RDParser parser = new RDParser(args[0]);
double nd = parser.CallExpr();
Console.WriteLine("The Evaluated Value is {0} \n", nd);
}
catch (Exception e) {
Console.WriteLine("Error Evaluating Expression\n");
Console.WriteLine(e);
return;
}
}
//////////////////////////////////////////////////////////////////
//
// Entry point for the Test Driver
//
//
//
public static void Main(string[] args)
{
if (args.Length == 0 || args.Length > 1)
{
Console.WriteLine("Usage : Expr \"<expr>\" \n");
Console.WriteLine(" eg:- Expr \"2*3+4\" \n");
Console.WriteLine(" Expr \"-2-3\" \n");
return;
}
try {
RDParser parser = new RDParser(args[0]);
Expr nd = parser.CallExpr();
Console.WriteLine("The Evaluated Value is {0} \n", nd);
double n = nd.accept(new TreeEvaluatorVisitor());
Console.WriteLine(n);
nd.accept(new ReversePolishEvaluator());
Console.WriteLine();
StackEvaluator s = new StackEvaluator();
nd.accept(s);
Console.WriteLine(s.get_value());
Console.WriteLine();
nd.FlattenExprToList();
Console.Read();
}
catch (Exception e)
{
Console.WriteLine("Error Evaluating Expression\n");
Console.WriteLine(e);
return;
}
}
