GNU bug report logs - #74536
30.0.50; undocumented box behaviour in faces

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#74536: closed (30.0.50; undocumented box behaviour in faces)
Date: Sat, 30 Nov 2024 10:46:01 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sat, 30 Nov 2024 12:44:56 +0200
with message-id <867c8l80gn.fsf <at> gnu.org>
and subject line Re: bug#74536: 30.0.50; undocumented box behaviour in faces
has caused the debbugs.gnu.org bug report #74536,
regarding 30.0.50; undocumented box behaviour in faces
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
74536: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=74536
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; undocumented box behaviour in faces
Date: Mon, 25 Nov 2024 19:34:41 +0000

The output of the following code is

--8<---------------cut here---------------start------------->8---
(progn
  (fundamental-mode)
  (insert (concat "\n"
                  (propertize "hello" 'face '(:box (:line-width (3 . 0) :color "red")))
                  (propertize " again" 'face '(:box (:line-width (3 . 0) :color "yellow")))
                  (propertize " other" 'face '(:box (:line-width (3 . 0) :color "green"))))
          "\n"))
--8<---------------cut here---------------end--------------->8---


|hello again other|

where the left border is red and the right one is green and the yellow border is completely hidden. Having negative line-width produces the same output.

It seems that one cannot have multiple adjacent borders unless one has some text in between without a border, like this
--8<---------------cut here---------------start------------->8---
(progn
  (fundamental-mode)
  (insert (concat "\n"
                  (propertize "hello" 'face '(:box (:line-width (3 . 0) :color "red")))
                  " "
                  (propertize " again" 'face '(:box (:line-width (3 . 0) :color "yellow")))
                  (propertize " othe " 'face '(:box (:line-width (3 . 0) :color "green"))))
          "\n"))
--8<---------------cut here---------------end--------------->8---

produces

|hello| | again other|

with (red, red, yellow, green) borders.

I find this behaviour, if intended, sometimes helpful as it allows one to have a one-sided border. Though it would be helpful if the exact mechanism is documented.

In any case, I was also originally expecting, and wanting, an output like this
|hello| again | other|

with `(red, yellow, green, green)` and no text in between, but it seems there is no way to achieve such output? Is that correct?

-- Al

[Message part 3 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
Cc: 74536-done <at> debbugs.gnu.org
Subject: Re: bug#74536: 30.0.50; undocumented box behaviour in faces
Date: Sat, 30 Nov 2024 12:44:56 +0200

> From: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
> Cc: 74536 <at> debbugs.gnu.org
> Date: Mon, 25 Nov 2024 21:08:48 +0000
> 
> 
> Thanks for the response.
> 
> On 25/11/2024, Eli Zaretskii wrote:
> >> I find this behaviour, if intended, sometimes helpful as it allows one to have a one-sided border. Though it would be helpful if the exact mechanism is documented.
> >
> > What mechanism would you like to be documented?
> >
> 
> Exactly what you explained:

Done.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.