From: Eric Schulte <schulte.eric@gmail.com>
To: Rainer@krugs.de
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: [BABEL] BUG Re: Omitting try/catch blocks from tangled R code?
Date: Fri, 07 Feb 2014 09:47:38 -0700 [thread overview]
Message-ID: <87siruamo3.fsf@gmail.com> (raw)
In-Reply-To: 52F498AE.6090802@krugs.de
Rainer M Krug <Rainer@krugs.de> writes:
> On 02/07/14, 07:18 , John Hendy wrote:
>> Greetings,
>>
>>
>> I don't usually tangle, but am creating a code file to go along with a
>> presentation I'm giving this weekend so that attendees can try things
>> out afterward by cloning my github repo where all the data and
>> necessary files are stored.
>>
>> In my presentation (Beamer), I create plots via the R pdf() device,
>> and noticed that all of the tangled code where plots are generated
>> contains the following:
>>
>> pdf(file="file.pdf"); tryCatch({
>>
>> code block contents here
>>
>> },error=function(e){plot(x=-1:1, y=-1:1, type='n', xlab='', ylab='',
>> axes=FALSE); text(x=0, y=0, labels=e$message, col='red');
>> paste('ERROR', e$message, sep=' : ')}); dev.off()
>>
>> Is there a way to omit this?
>
> This is a bug which must have been introduced some time ago - in the
> stock version of emacs (Org-mode version 7.9.3f
> (release_7.9.3f-17-g7524ef @
> /usr/local/Cellar/emacs/24.3/share/emacs/24.3/lisp/org/)) it does not
> tangle the enclosing commands to create graphics, but in 8.2 it does (I
> don't have an older version at hand to go further back).
>
I believe this was introduced by your commit eaa3a761d. Reversion of
which with the following should provide a temporary workaround.
git revert eaa3a761d
Perhaps the try/catch code should be moved from org-babel-expand-body:R
to org-babel-execute:R. Alternately, the code should stay as is and you
should use the no-expand header argument during tangling.
I'm not sure which makes the most sense, but I'd lean towards the
former.
Best,
>
>>
>> I'm guessing this is here to create a blank plot with the error as the
>> output when something goes awry?
>
> Yes.
>
>>
>> I checked around variable completions of org-babel-tangle-* and
>> searched google for terms like "org babel tangle try catch" but am not
>> finding anything that looks like what I need.
>
> There is nothing, as it should not be tangled. The enclosing commands
> concern the export, but not tangling,
>
> I agree that the :result graphics header argument caused commands should
> not be in the tangled file.
>
> Another question is about the :epilogue and :prologue which I think
> should be present (haven't checked if they are...).
>
> Cheers,
>
> Rainer
>
>
>>
>>
>> Thanks,
>> John
>>
--
Eric Schulte
https://cs.unm.edu/~eschulte
PGP: 0x614CA05D
next prev parent reply other threads:[~2014-02-07 16:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-07 6:18 Omitting try/catch blocks from tangled R code? John Hendy
2014-02-07 8:26 ` [BABEL] BUG " Rainer M Krug
2014-02-07 16:47 ` Eric Schulte [this message]
2014-02-07 19:22 ` Rainer M Krug
2014-03-12 1:13 ` John Hendy
2014-03-17 15:00 ` Eric Schulte
2014-03-17 17:11 ` John Hendy
2014-03-17 17:44 ` Eric Schulte
2014-03-18 8:44 ` Rainer M Krug
2014-03-18 21:56 ` John Hendy
2014-03-19 19:07 ` Charles Berry
2014-03-20 4:57 ` Eric Schulte
2014-03-20 9:22 ` Rainer M Krug
2014-03-24 2:03 ` Eric Schulte
2014-03-24 10:22 ` Rainer M Krug
2014-03-24 13:16 ` Eric Schulte
2014-03-25 9:37 ` Rainer M Krug
2014-03-26 20:17 ` Eric Schulte
2014-03-28 8:32 ` Rainer M Krug
2014-03-28 8:51 ` Rainer M Krug
2014-03-30 14:19 ` Eric Schulte
2014-03-31 7:52 ` Rainer M Krug
2014-04-02 23:09 ` Eric Schulte
2014-04-07 7:59 ` Rainer M Krug
2014-04-11 2:35 ` Eric Schulte
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