Context:
Epsilon User's Manual and Reference > Variable Reference >
If this variable is set to some value other than its usual value of -1, Epsilon uses that value when it next tries to read a key and sets ungot-key to -1 again.
-1
More info:
Keys (Primitives)
Epsilon Programmer's Editor 14.04 manual. Copyright (C) 1984, 2021 by Lugaru Software Ltd. All rights reserved.