[babel] Links in tangled file - howto jump to .org?

[babel] Links in tangled file - howto jump to .org?

[Rainer M Krug]

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Hi

I just discovered one of the mysteries I experienced with org: the appearing
ID properties.
They are caused by the back-linking of code (sitting in the file resulting
from tangling) to the actual location in the .org file which was tangled - a
REALLY nice feature.
Now I am using R (and therefore ESS), and I would like to know, how I can
jump from the .R file to the .org file? The links are not recognised in ESS
- how can I tell ESS that these are .org links?

Cheers,

Rainer


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Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
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Re: [babel] Links in tangled file - howto jump to .org?

[Eric Schulte]

Hi Rainer,

Rainer M Krug <r.m.krug@gmail.com> writes:

> Hi
>
> I just discovered one of the mysteries I experienced with org: the appearing
> ID properties.

Yes, I think this is caused by a recent change in the org-store-link
function which is called during tangling.

> 
> They are caused by the back-linking of code (sitting in the file
> resulting from tangling) to the actual location in the .org file which
> was tangled - a REALLY nice feature.  Now I am using R (and therefore
> ESS), and I would like to know, how I can jump from the .R file to the
> .org file? The links are not recognised in ESS - how can I tell ESS
> that these are .org links?
>

To follow a link you need only call the `org-open-at-point' function
with the point over top of the link.  As for making the links look like
org-mode links and responsive to C-c C-o, that would probably require
the creation of a new minor mode.  The creation of which while not the
most onerous of tasks escapes me at the moment, however as a temporary
workaround, you could add something like the following to your ess-mode
hook to make links stand out...

--8<---------------cut here---------------start------------->8---
(defun style-org-links ()
  (interactive)
  (font-lock-add-keywords
   nil `((,org-bracket-link-regexp
          (0 (prog1 nil
               (compose-region (match-beginning 0) (match-beginning 3)
                               "→"))))
         (,org-bracket-link-regexp
          (0 (prog1 nil
               (compose-region (match-end 3) (match-end 0)
                               "←")))))))
--8<---------------cut here---------------end--------------->8---

Best -- Eric

>
> Cheers,
>
> Rainer