public static double EvaluateInfix(string infixString)
{
var resultStack = new Stack <double>();
var postfixQueue = ShuntingYard.GetPostfixQueue(infixString);
while (postfixQueue.Any())
{
var currentToken = postfixQueue.Dequeue();
if (Token.IsNumber(currentToken))
{
resultStack.Push(double.Parse(currentToken));
continue;
}
if (Token.IsOperator(currentToken))
{
var val1 = resultStack.Pop();
var val2 = resultStack.Pop();
var output = Token.Evaluate(val2, val1, currentToken);
resultStack.Push(output);
continue;
}
if (Token.IsFunction(currentToken))
{
var value = resultStack.Pop();
var result = Token.Evaluate(value, currentToken);
resultStack.Push(result);
}
}
return(resultStack.Pop());
}
