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Variable Reference >
undo-keeps-narrowing: system buffer-specific variable
Default value: 0
If you use the narrow-to-region command to hide part of the
buffer, and then use the undo command to undo a change in a hidden
part of the buffer, undo removes the narrowing. Some modes set
this variable nonzero to prevent that behavior.
Epsilon Programmer's Editor 14.04 manual. Copyright (C) 1984, 2021 by Lugaru Software Ltd. All rights reserved.