Re: changing the display of formfeed characters

[Eli Zaretskii]

> From: Javier <invalid@invalid.invalid>
> Date: Sun, 2 Sep 2018 20:47:06 +0000 (UTC)
> 
> >> Has somebody come with any idea how to display ^L in some way without
> >> breaking whitespace-mode?
> > 
> > AFAICT, those modes break whitespace-mode because they define their
> > own display table without copying the display table that was in effect
> > before the mode was switched on.  whitespace-mode does take care of
> > copying the previous display table, and doesn't override the way the
> > formfeed is displayed AFAICS.  So maybe activating those other modes
> > _before_ whitespace-mode will do the trick?  (Caveat: I didn't try
> > that.)
> 
> I have just tried activating the display of form-feed before
> whitespace-mode, but didn't suceed.

Well, it was a stab in the dark anyway.

I think you should complain to the authors of the relevant packages,
because they should generally honor existing display tables where
those don't contradict what the package wants to do.  There's nothing
wrong in whitespace-mode AFAICT, it doesn't even change how ^L is
displayed by default.