Variable: undo-repeat-map
undo-repeat-map is a variable defined in bindings.el.gz.
Value
u undo
Documentation
Keymap to repeat undo commands. Used in repeat-mode(var)/repeat-mode(fun).
Source Code
;; Defined in /usr/src/emacs/lisp/bindings.el.gz
;; Richard said that we should not use C-x <uppercase letter> and I have
;; no idea whereas to bind it. Any suggestion welcome. -stef
;; (define-key ctl-x-map "U" 'undo-only)
(defvar-keymap undo-repeat-map
:doc "Keymap to repeat `undo' commands. Used in `repeat-mode'."
:repeat t
"u" #'undo)