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Subject: |
30.0.50; undocumented box behaviour in faces |
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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
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--- Begin Message ---
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Subject: |
Re: bug#74536: 30.0.50; undocumented box behaviour in faces |
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Date: |
Sat, 30 Nov 2024 12:44:56 +0200 |
> From: Al Haji-Ali <abdo.haji.ali@gmail.com>
> Cc: 74536@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.
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