GNU bug report logs - #28595
In mode-line-format, `:propertize' drops some existing text properties

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 28595 in the body.
You can then email your comments to 28595 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
To: bug-gnu-emacs <at> gnu.org
Subject: In mode-line-format, `:propertize' drops some existing text properties
Date: Sun, 24 Sep 2017 15:03:02 +0200

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

Hi all,

Based on the docs, the three following forms should yield the same results:

(format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
(format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
(format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))

But they don't:

(format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
=> #("AB" 0 2 (y 0)) ;; x 0 is dropped

(format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))
⇒ #("AB" 0 1 (y 0) 1 2 (x 0)) ;; y 0 is dropped on 1..2

(format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
⇒ #("AB" 0 1 (y 0) 1 2 (y 0 x 0)) ;; Seems right

Am I misreading the docs?
Clément.

[signature.asc (application/pgp-signature, attachment)]

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org,
 Clément Pit--Claudel <clement.pitclaudel <at> live.com>,
 28595 <at> debbugs.gnu.org
Subject: Re: bug#28595: In mode-line-format,
 `:propertize' drops some existing text properties
Date: Mon, 25 Sep 2017 19:52:57 +0100

On September 24, 2017 2:03:02 PM GMT+01:00, "Clément Pit--Claudel" <clement.pitclaudel <at> live.com> wrote:
> Hi all,
> 
> Based on the docs, the three following forms should yield the same
> results:
> 
> (format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
> (format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
> (format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))
> 
> But they don't:
> 
> (format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
> => #("AB" 0 2 (y 0)) ;; x 0 is dropped
> 
> (format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))
> ⇒ #("AB" 0 1 (y 0) 1 2 (x 0)) ;; y 0 is dropped on 1..2
> 
> (format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
> ⇒ #("AB" 0 1 (y 0) 1 2 (y 0 x 0)) ;; Seems right
> 
> Am I misreading the docs?
> Clément.

You already asked the same in bug#26291.

Message #16 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
To: Eli Zaretskii <eliz <at> gnu.org>, bug-gnu-emacs <at> gnu.org,
 28595-done <at> debbugs.gnu.org
Subject: Re: bug#28595: In mode-line-format, `:propertize' drops some existing
 text properties
Date: Tue, 26 Sep 2017 01:10:40 +0200

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

On 2017-09-25 20:52, Eli Zaretskii wrote:
> On September 24, 2017 2:03:02 PM GMT+01:00, "Clément Pit--Claudel" <clement.pitclaudel <at> live.com> wrote:
>> Hi all,
>>
>> Based on the docs, the three following forms should yield the same
>> results:
>>
>> (format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
>> (format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
>> (format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))
>>
>> But they don't:
>>
>> (format-mode-line `(:propertize #("AB" 1 2 (x 0)) y 0))
>> => #("AB" 0 2 (y 0)) ;; x 0 is dropped
>>
>> (format-mode-line '(:propertize ("A" (:propertize "B" x 0)) y 0))
>> ⇒ #("AB" 0 1 (y 0) 1 2 (x 0)) ;; y 0 is dropped on 1..2
>>
>> (format-mode-line `(:propertize ("A" #("B" 0 1 (x 0))) y 0))
>> ⇒ #("AB" 0 1 (y 0) 1 2 (y 0 x 0)) ;; Seems right
>>
>> Am I misreading the docs?
>> Clément.
> 
> You already asked the same in bug#26291.

Ouch. Sorry.

[signature.asc (application/pgp-signature, attachment)]

Message #29 received at 28595 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
Cc: 28595 <at> debbugs.gnu.org
Subject: Re: bug#28595: In mode-line-format, `:propertize' drops some existing
 text properties
Date: Fri, 29 Sep 2017 15:27:54 +0300

> From: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
> Date: Tue, 26 Sep 2017 01:10:40 +0200
> 
> > You already asked the same in bug#26291.
> 
> Ouch. Sorry.

No sweat.

Btw, I asked a follow-up question there, but got no responses.  Does
that mean your problem is solved?

Previous Next

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