/// <summary>
/// Recursively pop operators and operands
/// </summary>
/// <param name="operands"></param>
/// <param name="operators"></param>
private void Pop(Stack operands, Stack operators)
{
operators.Pop();
AndOrElement andOrChild = MyLeftChild as AndOrElement;
if (andOrChild == null)
{
operands.Pop();
}
else
{
andOrChild.Pop(operands, operators);
}
andOrChild = MyRightChild as AndOrElement;
if (andOrChild == null)
{
operands.Pop();
}
else
{
andOrChild.Pop(operands, operators);
}
}
private void PopRightChild(Stack operands, Stack operators)
{
AndOrElement andOrChild = MyRightChild as AndOrElement;
// What kind of child do we have?
if ((andOrChild != null))
{
// Another and/or expression so recurse
andOrChild.Pop(operands, operators);
}
else
{
// A terminal so pop it off the operands stack
operands.Pop();
}
}