From: Ihor Radchenko <yantar92@posteo.net>
To: lin Sun <sunlin7@yahoo.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>,
Timothy <tecosaur@gmail.com>, Bastien Guerry <bzg@gnu.org>
Subject: Re: [PATCH] before emit an error message, try to load the babel language
Date: Sat, 22 Apr 2023 12:45:13 +0000 [thread overview]
Message-ID: <87354suluu.fsf@localhost> (raw)
In-Reply-To: <CABCREdr+XevsNnc1YsiHubXS=QO28-SHEhRLFnwxntKo-XOZcw@mail.gmail.com>
lin Sun <sunlin7@yahoo.com> writes:
> Before the error message, the patch will give a try to load the
> associated babel language.
>
> Why does the language exist in the `lang org-babel-load-languages' but
> not be loaded?
> Because the `org-babel-load-languages' are defined as a customer
> variable with :set 'org-babel-do-load-languages, the ":set" function
> can only be triggered with function `custom-set-variables`.
> While setq/cl-pushnew `org-babel-load-languages' won't trigger the
> `:set' function, then the error message will be displayed if I run the
> code in the org file.
If we want to solve the problem of setting `org-babel-load-languages'
outside `defcustom', we should also consider unloading and other places
that use `fboundp' to check if babel backend is loaded. IMHO, the
cleanest way will be using `add-variable-watcher'.
--
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>
next prev parent reply other threads:[~2023-04-22 12:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <388850760.3644614.1634354740816.ref@mail.yahoo.com>
2021-10-16 3:25 ` Subject: [PATCH] Fix DISPLAY error on exporting org with plantuml to html Sun Lin
2021-10-18 1:39 ` Sun Lin
2021-10-18 5:07 ` Bastien Guerry
2021-10-20 12:02 ` Sun Lin
2021-11-18 5:42 ` Sun Lin
2021-11-18 7:38 ` Timothy
2021-11-18 7:47 ` Sun Lin
2021-11-30 1:41 ` Sun Lin
2021-11-30 4:18 ` Timothy
2021-11-30 6:05 ` Sun Lin
2022-06-07 5:48 ` lin Sun via General discussions about Org-mode.
2022-06-07 6:34 ` Dr. Arne Babenhauserheide
2022-06-07 14:49 ` Max Nikulin
2022-06-07 15:30 ` lin Sun
2022-06-08 1:45 ` Ihor Radchenko
2022-06-08 4:35 ` lin Sun
2023-04-22 7:21 ` [PATCH] before emit an error message, try to load the babel language lin Sun
2023-04-22 8:25 ` Ruijie Yu via General discussions about Org-mode.
2023-04-22 12:45 ` Ihor Radchenko [this message]
2023-04-23 6:19 ` lin Sun
2023-04-23 7:45 ` Ihor Radchenko
2023-04-25 2:50 ` lin Sun
2023-04-25 8:12 ` Ihor Radchenko
2023-04-25 14:30 ` Ruijie Yu via General discussions about Org-mode.
2023-04-25 14:48 ` Ihor Radchenko
2023-04-26 2:33 ` Ruijie Yu via General discussions about Org-mode.
2023-04-26 4:15 ` lin Sun
2023-04-26 7:00 ` Ihor Radchenko
2023-04-26 16:43 ` lin Sun
2023-04-26 16:59 ` Ihor Radchenko
2023-04-26 6:59 ` Ihor Radchenko
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