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From: Ihor Radchenko <yantar92@posteo.net>
To: Ken Mankoff <mankoff@gmail.com>
Cc: Max Nikulin <manikulin@gmail.com>, emacs-orgmode@gnu.org
Subject: Re: [PATCH] lisp/ob-screen.el: Support ~:var~ header args for babel blocks
Date: Mon, 27 Feb 2023 19:43:06 +0000	[thread overview]
Message-ID: <87pm9uyjw5.fsf@localhost> (raw)
In-Reply-To: <87fsarswar.fsf@t480.home>

Ken Mankoff <mankoff@gmail.com> writes:

>> To archive this, you can define a full
>> org-babel-variable-assignments:screen function that does what I
>> described.
>
> You're pushing my lisp skills here. Which is fine, but I might need some help.
>
> In ob-shell I see
>
> (defcustom org-babel-shell-names
>   '("sh" "bash" "zsh" "fish" "csh" "ash" "dash" "ksh" "mksh" "posh")
>
> Should I create a function that, using case statement or something similar, checks for each of these and calls that flavor? I think I could do that.

Not each of these. AFAIU, :cmd header property in ob-screen defines
which shell to use. Knowing shell name, you can deduce the function name
to be used for variable assignments. See how it is done in
`org-babel-expand-src-block'.

> But if I also see org-babel-shell-initialize in ob-shell that looks like it creates defaliases for each of these to (org-babel-execute:shell) and #'org-babel-variable-assignments:shell.

The convention is for every possible #+begin_src lang to have
org-babel-variable-assignments:LANG.
ob-shell just tries to avoid unnecessary code duplication and instead of
writing identical org-babel-variable-assignments:sh
org-babel-variable-assignments:bash, org-babel-variables-assignents:zsh,
..., it generates them using a macro.

> I'm not sure how that is very different from what I've done. I'm not sure what to do here, nor how to do what you suggest (yet - I've only read it so far, not spent a lot of time experimenting and searching, so I may be able to implement what I think is a solution to what you wrote, but I doubt it'll be what you expect).

AFAIU, you don't need to juggle with macros as ob-shell does. Something
similar to `org-babel-expand-src-block' will do.

-- 
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>


      reply	other threads:[~2023-02-27 19:43 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-24 17:03 [PATCH] lisp/ob-screen.el: Support ~:var~ header args for babel blocks Ken Mankoff
2023-02-24 18:33 ` Ken Mankoff
2023-02-25  3:51   ` Max Nikulin
2023-02-25 15:14     ` Ken Mankoff
2023-02-25 15:19       ` Ken Mankoff
2023-02-25 16:05       ` Max Nikulin
2023-02-25 16:47         ` Ken Mankoff
2023-02-26 10:11           ` Max Nikulin
2023-02-27  1:59             ` Ken Mankoff
2023-02-28 10:40               ` Ihor Radchenko
2023-03-16  4:12                 ` Ken Mankoff
2023-03-16 10:22                   ` Ihor Radchenko
2023-03-16 15:09                     ` [PATCH v4] " Max Nikulin
2023-03-17 11:41                       ` Max Nikulin
2023-03-18 12:08                       ` Ihor Radchenko
2023-03-19 14:42                       ` Ken Mankoff
2023-03-21 14:12                         ` Max Nikulin
2023-03-02 13:38               ` [PATCH] " Max Nikulin
2023-02-26 12:18           ` Ihor Radchenko
2023-02-27  1:59             ` Ken Mankoff
2023-02-27 19:43               ` Ihor Radchenko [this message]

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