GNU bug report logs - #47566
28.0.50; diff-hl should use `repeat-mode' ... and not `smartrep'

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Juri Linkov <juri <at> linkov.net>
Cc: Ramesh Nedunchezian <rameshnedunchezian <at> outlook.com>, 47566 <at> debbugs.gnu.org
Subject: bug#47566: 28.0.50; diff-hl should use `repeat-mode' ... and not `smartrep'
Date: Wed, 7 Apr 2021 01:44:07 +0300

Hi Juri,

On 05.04.2021 23:43, Juri Linkov wrote:
> Could you provide a minimal test case?  I tried with:
> 
> #+begin_src emacs-lisp
> (defun hl-test ()
>    (interactive)
>    (message "OK")
>    (y-or-n-p "Yes? "))
> 
> (defvar hl-repeat-map
>    (let ((map (make-sparse-keymap)))
>      (define-key map (kbd "r") 'hl-test)
>      map)
>    "Keymap to repeat hl-test.")
> (put 'hl-test 'repeat-map 'hl-repeat-map)
> #+end_src
> 
> Then typing `M-x hl-test RET', and `y r y r y r ...' keeps the loop.

Here you go:

(defun hl-test ()
  (interactive)
  (message "OK")
  (message "result: %s"
           (y-or-n-p "Yes? ")))

(defvar hl-repeat-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "n") 'hl-test) ; Note the changed key binding.
    map)
  "Keymap to repeat hl-test.")

(put 'hl-test 'repeat-map 'hl-repeat-map)

To try it:

1. M-x hl-test.
2. Press 'n' a few times.

Expected behavior:

It alternates between the prompt "Yes? " and message "result: nil".

Actual behavior:

It enters some sort of recursive state, only showing the prompt. I have 
to press 'y' a bunch of times to get out of it.

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