public void PushParent(GroupNode parent)
{
if (mParentStack.Count > 0)
mParentStack.Peek().Add(parent);
mParentStack.Push(parent);
}
private void BuildOperators(GroupNode root)
{
for (int i = 0; i < root.Count; i++)
{
if (root[i] is OperatorNode)
{
if (i == root.Count - 1)
throw new Exception();
if (!(root[i + 1] is TermNode))
throw new Exception();
var operatorNode = (OperatorNode)root[i];
var termNode = (TermNode)root[i + 1];
operatorNode.Argument = termNode.Term;
if (!root.Remove(termNode))
throw new Exception();
}
else if (root[i] is GroupNode)
{
var parenNode = (GroupNode)root[i];
BuildOperators(parenNode);
}
}
}
