This exit point marks the start of a valid user-entered EDIT line command. Line commands that are being processed by an edit macro optionally invoke the exit routine and indicate that it is a line command executed by an edit macro. The exit routine is given control immediately before the command is performed.

If multiple line commands are entered, the exit routine is given control once for each line command. A line command entered in block form (CC, for example) causes the exit to be called only once. Destination line commands (A,B,O) and defining line labels do not call the exit.