# A simple linked list for use with iterators
private class RopeCharIteratorPiece
	# The encapsulated node of the `Rope`
	var node: String
	# Was its _left child (if any) visited ?
	var ldone: Bool
	# Was its _right child (if any) visited ?
	var rdone: Bool
	# The previous node in the list.
	var prev: nullable RopeCharIteratorPiece
end