public void Add(string s, Operation operation)
{
ParseTreeItem current = root;
for (int i = 0; i < s.Length; ++i) {
char key = s[i];
if (current.Children.ContainsKey(key)) {
current = current.Children[key];
if (i == s.Length - 1) {
//ADD EXCEPTION HERE FOR IF IT FAILS
if (current is ParseTreeOperationItem) {
ParseTreeOperationItem opItem = current as ParseTreeOperationItem;
if (operation is Binary) {
opItem.BinaryOperation = operation as Binary;
} else if (operation is Function) {
opItem.FunctionOperation = operation as Function;
}
}
}
} else {
ParseTreeItem newItem = null;
if (i == s.Length - 1)
newItem = new ParseTreeOperationItem(operation);
else
newItem = new ParseTreeItem();
current.Children.Add(key, newItem);
current = newItem;
}
}
}
public ParseTree()
{
root = new ParseTreeItem();
}