Re: Repeat lambda

[Juri Linkov]

>   > Maybe 'C-x u u' could start such key sequence with the command 'undo',
>   > then 'r' could switch to a different keymap
>   > where 'r' is bound to 'undo-redo' and 'u' to 'undo-only'.
>   > Perhaps such heuristics makes sense that once the user typed 'r',
>   > the next 'u' should do 'undo-only'?
>
> C-x u is the recommended key sequence for novices to undo.
> Please do not make it more complex in any way.
> It would trip them up!

Then additional keybindings could be left up to personal customization,
so e.g. after activating undo repeating mode with 'C-x u', 'C-z' and 'C-y'
could be used to browse the undo history with 'C-x u C-z C-z ... C-y C-y ...'
after such customization:

  (define-key undo-repeat-map (kbd "C-z") 'undo-only)
  (define-key undo-repeat-map (kbd "C-y") 'undo-redo)