public void parse()
{
string[] tokens;
string token; // String variable for the individual token
double intWrapper; // integer wrapper to get a primitive from
string oper;
double op1, op2; // the two operands to compute
double element; // the element to be pushed on the stack
char[] delimiterChars = { ' ', ',', ':', '\t' }; //not all used
tokens = str.Split(delimiterChars);
foreach (string s in tokens)
{
token = s;
oper = token;
if (this.isOperator(oper))
{
op2 = stack.Pop(); // pop the last 2 elements from the stack
op1 = stack.Pop();
this.compute(op1, op2, oper); // and compute them
stack.Push(this.intermediateResult); // now stick the intermediateResult on the stack
}
else
{ // not an operator?
intWrapper = double.Parse(token);
element = intWrapper;
stack.Push(element); // Push that element back onto the stack
}
}
}
