bug#70637: :box vertical bar artifacts at 'display boundaries

[Eli Zaretskii <eliz@gnu.org>]

> From: JD Smith <jdtsmith@gmail.com>
> Date: Sat, 11 May 2024 13:16:54 -0400
> Cc: 70637@debbugs.gnu.org
> 
> > On May 11, 2024, at 5:41 AM, Eli Zaretskii <eliz@gnu.org> wrote:
> > 
> >> From: JD Smith <jdtsmith@gmail.com>
> >> Date: Thu, 9 May 2024 09:31:28 -0400
> >> Cc: 70637@debbugs.gnu.org
> >> 
> >> I presume this is a more general issue than just :box.  One idea is to add a warning to the Elisp section "Display
> >> Specs That Replace The Text", perhaps at the end:
> >> 
> >> Note: certain `face' attributes such as `:box' can lead to display artifacts when applied to the replacing
> >> text in a `display' specification.  These attributes may be incorrectly merged with adjacent non-`display'
> >> `face' properties.  This can be mitigated by applying the `face' attributes directly to the text being
> >> replaced, rather than (or in addition to) the `display' replacement text itself.
> > 
> > Actually, this is specific to :box, since only for that attribute we
> > need to determine the beginning and the end of the box.
> > 
> >> Maybe a bit too wordy.
> > 
> > Yes, I agree.  If you can reword it to be specific to :box and to
> > include an example, I think it would be good.
> 
> 
> Feel free to edit:

Thanks, I installed a variant of this, and I'm therefore closing this
bug.