/// <summary>
/// Inserts another rope into this rope.
/// Runs in O(lg N + lg M), plus a per-node cost as if <c>newElements.Clone()</c> was called.
/// </summary>
/// <exception cref="ArgumentNullException">newElements is null.</exception>
/// <exception cref="ArgumentOutOfRangeException">index or length is outside the valid range.</exception>
public void InsertRange(int index, Rope <T> newElements)
{
if (index < 0 || index > Length)
{
throw new ArgumentOutOfRangeException("index", index,
"0 <= index <= " + Length.ToString(CultureInfo.InvariantCulture));
}
if (newElements == null)
{
throw new ArgumentNullException("newElements");
}
newElements.root.Publish();
root = root.Insert(index, newElements.root);
OnChanged();
}
