Re: Emacs 27 - Changing the "selective display character" (also called "ellipsis")

[A M]

Hello

Sorry, there was one thing I forgot to mention which is a requirement 
for the problem to appear.
I have also enabled automatic byte-compilation, using the following line 
of lisp code:

;; Automatic byte-compilation when starting emacs.
(byte-recompile-directory (expand-file-name "~/.emacs.d") 0)

A minimal emacs dotfile that demonstrates my described problem is thus 
the code snippet I gave in the first message combined with the one 
above. (I am checking that myself right now.) It is when an init.elc has 
been generated I get this error specifically in Emacs 27.

I will attach the error message I get in Emacs and also the stack trace 
from 'emacs --debug-init', please see the attached file.

Eli, yes you guess correctly. invoke "C-x $" with a numeric argument on 
init.el as a way of testing.

On 7/25/21 3:51 PM, Eli Zaretskii wrote:
> > From: A M <alex334599@gmail.com>
> > Date: Sun, 25 Jul 2021 12:07:07 +0200
> >
> > I would like to change the "selective display character" (also called
> > "ellipsis", default is "...") to some other character, an arrow
> > character would be nice.
> >
> > Up until Emacs 27, I used the code below in my init.el , it worked just
> > great.
> >
> > ;Change the default selective display ("folding") character "..." to " »".
> > (set-display-table-slot standard-display-table
> >                           'selective-display (string-to-vector " »"))
> >
> > With Emacs 27 this no longer works. I have tested by using
> > 'selective-display' (C-x $) on my init.el as a simple test, I get the
> > default "...".
> > Could you help me by providing a working method for Emacs 27?
> I cannot reproduce the problem you are reporting: the above works for
> me in Emacs 27 (and in Emacs 28).  The "..." is replaced with the
> arrow character.
>
> Just to be sure: to test this you invoke "C-x $" with a numeric
> argument that determines the column past which you want to have the
> ellipsis, yes?
>
> I suggest to try this in "emacs -Q"; if it works there, there are some
> customizations of yours that get in the way.

error-message_and_stack-trace.txt
Description: Text document