/**
* Finds a node by its path
*
* <p>Paths may be generated with {@link #getPath(CommandNode)}, and are guaranteed (for the same tree, and the
* same version of this library) to always produce the same valid node by this method.</p>
*
* <p>If a node could not be found at the specified path, then {@code null} will be returned.</p>
*
* @param path a generated path to a node
* @return the node at the given path, or null if not found
*/
public CommandNode <TSource> FindNode(IEnumerable <string> path)
{
CommandNode <TSource> node = _root;
foreach (var name in path)
{
node = node.GetChild(name);
if (node == null)
{
return(null);
}
}
return(node);
}