From: "Eric Schulte" <schulte.eric@gmail.com>
To: R.M.Krug@gmail.com
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: [babel] Conditional tangling possible
Date: Tue, 31 Aug 2010 10:19:29 -0600 [thread overview]
Message-ID: <87aao292ig.fsf@gmail.com> (raw)
In-Reply-To: 4C7CBAF8.6050405@gmail.com
Hi Rainer,
Rainer M Krug <r.m.krug@gmail.com> writes:
> On 31/08/10 02:06, Eric Schulte wrote:
>> Hi Rainer,
>>
>> The easiest way to do this should be,
>>
>> --8<---------------cut here---------------start------------->8---
>> ** pulling information from tags :blue:
>>
>> #+begin_src R :var color=(car (org-get-tags-at (point))) :tangle example.R
>> color
>> #+end_src
>
> OK - that looks good. That solves one problem.
>
> But it is not actually conditional tangling? It is rather the transation
> of a tag into a variable - or am I seeing something wrong?
>
My fault, I misread your original message, something like the following
should work. You can use the uppermost elisp code block to change the
value of the tangle-tag to whichever tag you wish to be tangled.
--8<---------------cut here---------------start------------->8---
** conditional tangling
#+begin_src emacs-lisp :results silent
(setq tangle-tag "right")
#+end_src
*** first subheading :left:
#+begin_src R :tangle (and (equal (car (org-get-tags-at (point))) tangle-tag) "yes")
"first"
#+end_src
*** second subheading :right:
#+begin_src R :tangle (and (equal (car (org-get-tags-at (point))) tangle-tag) "yes")
"second"
#+end_src
--8<---------------cut here---------------end--------------->8---
Cheers -- Eric
prev parent reply other threads:[~2010-08-31 16:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-30 11:42 [babel] Conditional tangling possible Rainer M Krug
2010-08-31 0:06 ` Eric Schulte
2010-08-31 8:19 ` Rainer M Krug
2010-08-31 16:19 ` Eric Schulte [this message]
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