public static bool PopIfExists(this Stack <Pair <string, string> > stack, string target)
{
bool result = false;
if (stack.PeekSafely().Value2 == target)
{
stack.Pop();
result = true;
}
return(result);
}
private static bool IsIntegerConstant(this Stack <Pair <string, string> > stack)
{
Pair <string, string> token = stack.PeekSafely();
if (token != null)
{
int number = 0;
return(int.TryParse(token.Value2, out number));
}
return(false);
}