From: Eli Zaretskii <eliz@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: qthong@stanford.edu, emacs-devel@gnu.org
Subject: Re: Change of behavior of "space" display property and face property
Date: Tue, 04 Oct 2022 10:48:39 +0300 [thread overview]
Message-ID: <83edvovxk8.fsf@gnu.org> (raw)
In-Reply-To: <87lepwyu4r.fsf@yahoo.com> (message from Po Lu on Tue, 04 Oct 2022 14:34:28 +0800)
> From: Po Lu <luangruo@yahoo.com>
> Cc: "emacs-devel@gnu.org" <emacs-devel@gnu.org>
> Date: Tue, 04 Oct 2022 14:34:28 +0800
>
> Qiantan Hong <qthong@stanford.edu> writes:
>
> > Open an empty text file, M-: (insert #(" " 0 1 (face (:underline t) display (space :align-to right))))
> >
> > On Emacs 28, this produce a blank line with underline.
> >
> > On Emacs 29, this produce a blank line without underline. In general, “space” display
> > seem to disregard any face property.
> >
> > Is this intended or is this a bug? “space” display respecting face property is useful for
> > typesetting. For example. I use it to display a horizontal separator under my header line.
> >
> > Best,
> > Qiantan
>
> That is almost certainly a bug, but I cannot be certain without knowing
> what toolkit and window system you built Emacs with.
I cannot reproduce this here, on MS-Windows. The recipe produces the
same display for me in both Emacs 28 and Emacs 29. So if this is
reproducible on some system, it is most probably a bug in the
terminal-specific display backend.
next prev parent reply other threads:[~2022-10-04 7:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 4:48 Change of behavior of "space" display property and face property Qiantan Hong
2022-10-04 6:34 ` Po Lu
2022-10-04 7:48 ` Eli Zaretskii [this message]
2022-10-04 8:30 ` Po Lu
2022-10-04 8:35 ` Visuwesh
2022-10-04 15:37 ` Qiantan Hong
2022-10-05 0:25 ` Po Lu
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