//THE MOTHER FUNCTION
public int handledIt(string input)
{
//declare variable to hold result from operation
int result = 0;
//set stack_record so that I can access the last user input
stack_record.lastQ = input;
//create new expression class to handle parsing user input
Expression myExp = new Expression();
//allow the container to be set from the parseExpression method
Container answer = myExp.ParseExpression(input);
//search the equation for a constant and parse it out to do the math on.
string ContString = "abcdefghijklmnopqrstuvwxyz";
foreach (var letter in input)
{
if (ContString.IndexOf(letter) == 0)
{
Console.WriteLine("No Constant Defined");
}
else
{
}
}
//shorthand the variables from Container class
int lhs = answer.LHS;
int rhs = answer.RHS;
char op = answer.OP;
string constant = answer.CONS;
//run the operator logic
if (op == '+')
{
Add add_me = new Add();
result = add_me.addIt(lhs, rhs);
}
else if (op == '-')
{
Subtract subtract_me = new Subtract();
result = subtract_me.subtractIt(lhs, rhs);
}
else if (op == '*')
{
Multiply multiply_me = new Multiply();
result = multiply_me.multiplyIt(lhs, rhs);
}
else if (op == '/')
{
Divide divide_me = new Divide();
result = divide_me.divideIt(lhs, rhs);
}
else if (op == '%')
{
Modulo modulo_me = new Modulo();
result = modulo_me.moduloIt(lhs, rhs);
}
else if (op == '=')
{
conts.Add(constant, rhs);
result = rhs;
}
else
{
throw new InvalidOperationException("no valid operator found");
}
//set stack_record result for later access
stack_record.last = result;
return(result);
}