In a terminal flow, mapping routines
are used to manage data (as in nonterminal flows) and also to perform the
operations that are specified by actions during flow recording.
General information about mapping routines in terminal flows In a terminal flow, you can use
mappings to manage data, as you do in nonterminal flows. Also, a terminal
flow contains mappings that the host editor creates during flow recording
to implement AID key actions, Input actions, Extract actions, or Insert
actions.