A helper interface we use to "mark" leaf nodes.
Please be aware, that this is not marking from a language perspective, as it is equivalent to the Base interface. It is intended to help humans understand the code.
allows to attach additional information to the node
the original string retrieved from R, can be used for further identification
A helper interface we use to "mark" leaf nodes.
Please be aware, that this is not marking from a language perspective, as it is equivalent to the Base interface. It is intended to help humans understand the code.