Possible to modify 'whitespace-display-mappings' at runtime?

Question

Making changes to whitespace-display-mappings while emacs runs doesn't seem to do anything.

(setq
 whitespace-display-mappings
 '(
   (space-mark 32 [183] [46]) ; middle-dot
   (tab-mark 9 [9654 9] [92 9]) ; arrow
  )
 )

Then later on:

(setq whitespace-display-mappings '())

Is there a way to refresh the display mapping so key bindings can be used to change which whitespace is displayed?

Try evaluating (whitespace-display-char-on) -- it is a non-interactive function. — lawlist, Commented Jun 3, 2017 at 16:15
Thanks for the tip. But for some reason it doesn't work for me. — ideasman42, Commented Jun 4, 2017 at 3:18

merzenjoyer · Accepted Answer · 2022-08-21 03:38:23Z

1

Turning whitespace off then on worked for me. Just evaluate these two functions with M-x eval-expression or M-::

(whitespace-display-char-off)
(whitespace-display-char-on)

answered Aug 21, 2022 at 3:38

merzenjoyer

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