From: Ihor Radchenko <firstname.lastname@example.org>
To: "Théo Maxime Tyburn" <email@example.com>
Subject: Re: Multiple noweb-ref
Date: Mon, 20 Feb 2023 14:23:07 +0000 [thread overview]
Message-ID: <875ybwe7qs.fsf@localhost> (raw)
Théo Maxime Tyburn <firstname.lastname@example.org> writes:
> What I would like to have, when I expand `<<bar>>` is to get all the blocks
> under A, and when I expand `<<foo>>` I get all the blocks under B. For
> now when I expand `<<foo>>` I only get the blocks under A that are not under B.
> Is there a way to do this with the current features of org-babel?
No, AFAIK. Not easily at least.
> Anyway I tried to hack my way trough it. It seems there are two things
> to do :
> 1) Enable noweb-ref to contain multiple references.
> 2) Accumulate references when using header-args+ or use tags to set the
> value of noweb-ref
> I came up with a quick patch for 1):
> modified lisp/ob-core.el
> @@ -2910,8 +2910,11 @@ block but are passed literally to the \"example-block\"."
> (if (org-in-commented-heading-p)
> (org-forward-heading-same-level nil t)
> (let* ((info (org-babel-get-src-block-info t))
> - (ref (cdr (assq :noweb-ref (nth 2 info)))))
> - (push info (gethash ref cache))))))
> + (refs (cdr (assq :noweb-ref (nth 2 info)))))
> + (if refs
> + (dolist (ref (s-split "+" refs))
> + (push info (gethash ref cache)))
> + (push info (gethash refs cache)))))))
+ is a bit awkward.
Space would be more logical as separator.
Though I am wondering if people are using noweb reference names with
spaces in the wild.
> Feedback on the code is of course very welcome. Not sure if using a plus
> sign as a delimiter is clever. Also not sure if using `s-split` is a
> good idea, what would be the builtin alternative?
There is built-in `split-string'.
> For 2) I didn't check in detail how one could achieve this. I have the
> impression it would be easier to use tags. One could define a
> new variable `org-babel-set-noweb-refs-from-tags` that would be used in
> `org-babel-get-src-block-info` to generate the value of noweb-ref we
> would like to have depending on the tags of the headline of the
> block. I'll try this soonish.
I do not like the idea of using tags.
What we might do is:
1. Leave :noweb-ref's current behavior of overwriting the parent
2. Add a new :noweb-ref+ parameter to accumulate multiple noweb
reference names. The relevant function to modify is
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:[~2023-02-20 14:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-09 10:01 Multiple noweb-ref Théo Maxime Tyburn
2023-02-20 14:23 ` Ihor Radchenko [this message]
2023-02-26 18:51 ` Théo Maxime Tyburn
2023-03-03 16:49 ` Ihor Radchenko
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