[DISCUSS] "same text-property competing" problem in external packages

[DISCUSS] "same text-property competing" problem in external packages

[stardiviner]

[-- Attachment #1: Type: text/plain, Size: 566 bytes --]

I got a problem when more than one Emacs package competing on setting
text-property on same target from different packages.

Here is the original problem and discussion link:
https://github.com/nobiot/org-transclusion/issues/166

Does anybody have a good idea to solve this problem?

Thanks for your idea and suggestions.

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
IRC(freeenode): stardiviner                     Twitter:  @numbchild
Key fingerprint = 9BAA 92BC CDDD B9EF 3B36  CB99 B8C4 B8E5 47C3 2433
Blog: http://stardiviner.github.io/

[-- Attachment #2: Type: text/html, Size: 1539 bytes --]

Fwd: [DISCUSS] "same text-property competing" problem in external packages

[stardiviner]

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
IRC(freeenode): stardiviner                     Twitter:  @numbchild
Key fingerprint = 9BAA 92BC CDDD B9EF 3B36  CB99 B8C4 B8E5 47C3 2433
Blog: http://stardiviner.github.io/


---------- Forwarded message ---------
From: stardiviner <numbchild@gmail.com>
Date: Tue, Feb 28, 2023 at 10:16 AM
Subject: [DISCUSS] "same text-property competing" problem in external
packages
To: Org-mode <emacs-orgmode@gnu.org>
Cc: <emacs-help@gnu.org>


I got a problem when more than one Emacs package competing on setting
text-property on same target from different packages.

Here is the original problem and discussion link:
https://github.com/nobiot/org-transclusion/issues/166

Does anybody have a good idea to solve this problem?

Thanks for your idea and suggestions.

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
IRC(freeenode): stardiviner                     Twitter:  @numbchild
Key fingerprint = 9BAA 92BC CDDD B9EF 3B36  CB99 B8C4 B8E5 47C3 2433
Blog: http://stardiviner.github.io/

Re: Fwd: [DISCUSS] "same text-property competing" problem in external packages

[Eli Zaretskii]

> From: stardiviner <numbchild@gmail.com>
> Date: Tue, 28 Feb 2023 12:30:41 +0800
> 
> I got a problem when more than one Emacs package competing on setting
> text-property on same target from different packages.
> 
> Here is the original problem and discussion link:
> https://github.com/nobiot/org-transclusion/issues/166
> 
> Does anybody have a good idea to solve this problem?

Use a different text property.

Re: [DISCUSS] "same text-property competing" problem in external packages

[Ihor Radchenko]

stardiviner <numbchild@gmail.com> writes:

> I got a problem when more than one Emacs package competing on setting
> text-property on same target from different packages.
>
> Here is the original problem and discussion link:
> https://github.com/nobiot/org-transclusion/issues/166
>
> Does anybody have a good idea to solve this problem?

I am not sure which property you are referring to.

There is a number of possible solutions you may use depending on what is
more appropriate for your specific use case:

1. Use overlays with 'priority property. That way, you can "overlay" the
   property above/below existing and Emacs will automatically restore
   the existing value upon removing your overlay. This is the most
   common approach.

2. You can utilize `char-property-alias-alist' and actually store your
   property value in a different property. This will make the priority
   of the existing property _strictly higher_ than yours. org-fold-core
   uses this approach.

3. You can store a "backup" of the existing property and restore it when
   your minor mode is disabled. isearch.el uses this approach.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>