From: Rainer M Krug <r.m.krug@gmail.com>
To: Eric Schulte <eric.schulte@gmx.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: var expansion on tangling only once per file
Date: Thu, 12 Apr 2012 09:41:14 +0200 [thread overview]
Message-ID: <4F86871A.6040501@gmail.com> (raw)
In-Reply-To: <87sjgaux10.fsf@gmx.com>
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On 11/04/12 16:15, Eric Schulte wrote:
> This is not currently possible, and any conceivable implementation would be necessarily complex
> requiring a good deal of cross-buffer coordination.
Ok - then I know why I haven't realised this before: I mover the variable definition from a header
argument to the #+PROPERTY: as I need the variable throughout the document.
>
> Would it be possible to simply only declare the variable in a header argument applying to the
> first code block? Using a session would keep that variables state through all subsequent code
> blocks.
Would work - but as I said above, I would have preferred to have the variable defined at the top
of the buffer. I could use though the no-expand header argument for the source blocks. At the moment,
I am putting them in a subtree and set the property for the subtree.
Thanks,
Rainer
>
> Best,
>
> Rainer M Krug <r.m.krug@gmail.com> writes:
>
>> Hi
>>
>> I have a file wide variable defined and tangle several source blockd into one file.
>>
>> BNo the variable is expanded in each block.
>>
>> Would it be possible to have the expansion at the beginning of the file and nod be repeated,
>> as this can cause problems?
>>
>> The following org code
>>
>> #+PROPERTY: tangle test.R #+PROPERTY: var TheVar=99
>>
>> * Part one #+begin_src R :tabgle: x <- 1 #+end_src * Problem #+begin_src R y <- list( x = 1,
>> #+end_src * Problem continued #+begin_src R x <- 3 ) #+end_src
>>
>> results in an error in R due to the repeated "TheVar <- 99" in the list definition.
>>
>> Org-mode version 7.8.08 (release_7.8.07.213.ge6fdf) from git this morning
>>
>> If I remember correctly, this sneeked in quite recently.
>>
>> Thanks,
>>
>> Rainer
>
- --
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys.
(Germany)
Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa
Tel : +33 - (0)9 53 10 27 44
Cell: +33 - (0)6 85 62 59 98
Fax : +33 - (0)9 58 10 27 44
Fax (D): +49 - (0)3 21 21 25 22 44
email: Rainer@krugs.de
Skype: RMkrug
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next prev parent reply other threads:[~2012-04-12 7:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-06 9:52 var expansion on tangling only once per file Rainer M Krug
2012-04-11 14:15 ` Eric Schulte
2012-04-12 7:41 ` Rainer M Krug [this message]
2012-04-12 11:18 ` Olaf.Hamann
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