private static Pair ReadMember()
{
Pair result;
var val = peek();
var intValue = (long)val - 48;
if (intValue >= 0 && intValue < 10)
{
read(); // get the number off the queue
result = new LeafNode(intValue);
}
else
{
result = ParsePair();
}
return(result);
}
public TreeNode Clone()
{
Pair newLeft, newRight;
if (left is TreeNode)
{
newLeft = ((TreeNode)left).Clone();
}
else
{
newLeft = new LeafNode(((LeafNode)left).value);
}
if (right is TreeNode)
{
newRight = ((TreeNode)right).Clone();
}
else
{
newRight = new LeafNode(((LeafNode)right).value);
}
return(new TreeNode(newLeft, newRight));
}