From 69e0281ab4db3cf28d09566f9102dc78216fa394 Mon Sep 17 00:00:00 2001
From: Hayato Ito Slots
A slot is a defined location where nodes in a different node tree appear instead of the nodes's original position when constructing a composed tree.
+ A node can be assigned to a slot, called an assigned slot. The exact algorithm of determining an assigned slot for a node is specified later. +
+A distribution is the mechanism that determines which nodes appear at each slot. The exact algorithm of a distribution is specified later.
- The slotting algorithm must be used to determine an assigned slot for a node and must be equivalent to processing the following steps: + The slotting algorithm must be used to determine an assigned slot for a node and must be equivalent to processing the following steps: