From: Eric Schulte <email@example.com>
To: Andreas Leha <firstname.lastname@example.org>
Subject: Re: [babel] howto debug #+call lines
Date: Mon, 08 Oct 2012 20:31:14 -0600 [thread overview]
Message-ID: <email@example.com> (raw)
Andreas Leha <firstname.lastname@example.org> writes:
> Hi Eric,
>> Andreas Leha <email@example.com> writes:
>>> Hi Eric,
>>>> Andreas Leha <firstname.lastname@example.org> writes:
>>>>> Hi all,
>>>>> I am getting different results from the evaluation of a source block and
>>>>> the evaluation of a #+call line to that block.
>>>>> Therefore, my question: Is there an equivalent to
>>>>> org-babel-expand-src-block (C-c C-v v) for #+call lines?
>>>>> Or more general: How do I debug #+call lines?
>>>> Can you provide a minimal example?
>>>> You could write a code block equivalent to the call line. E.g.,
>>>> #+call: foo(bar=1)
>>>> is equivalent to
>>>> #+begin_src emacs-lisp :var results=foo(bar=1)
>>> Thanks for following this up. I found the problem in my case: The
>>> header argument ':colnames yes' was missing from the call line, such that
>>> the passed variables were different. (I've fallen into that trap
>>> repeatedly, but do not learn, as it seems...)
>>> It would have been a lot easier to find this, if I had had the possibility
>>> to do C-c C-v v on the call line to get the chance to step through the
>>> (R-) code that is evaluated. Without this, it took me some time to
>>> figure things out.
>>> So the question still stands: Is there the possibility to see what is
>>> actually executed with a call line, similar to C-c C-v v on a source
>> There is no body to expand in a call line so C-c C-v v would have
>> nothing to show. You can however jump to the related code block and
>> call C-c C-v v there. This process could be made faster by wrapping the
>> org-babel-goto-named-src-block and org-babel-expand-src-block functions
>> into a single function.
>>> For a small example consider:
>>> #+name: foo
>>> | bar |
>>> | baz |
>>> | bam |
>>> #+call: testblock[:var a=foo]() :colnames yes
>>> #+name: testblock
>>> #+begin_src R :var a=foo :colnames yes
>>> a <- a[,1]
> Thanks for the confirmation, that there is no possibility to expand a
> #+call line.
> I know, that I can jump to the code block and expand that one (quite
> fast with C-c C-v g RET C-c C-v v), but that is exactly *not* what I was
> looking for. Because then, the header arguments to the source code
> block will apply instead of the header arguments to the #+call line.
> I was hoping for a C-c C-v v on #+call lines, which would spare me from
> modifying the source block's header arguments. But it is not a pressing
> issue, just my laziness (and bad coding perhaps).
Patches are always welcome. :)
The call line is evaluated by first expanding itself into a full code
block, so perhaps you could add functionality to C-c C-v v so that it
will expand this ephemeral code block. Additionally it may be easy to
update C-c C-v I so that it works on call lines, which may provide the
information you're after.
next prev parent reply other threads:[~2012-10-09 2:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-03 21:02 [babel] howto debug #+call lines Andreas Leha
2012-10-05 2:39 ` Eric Schulte
2012-10-05 21:06 ` Andreas Leha
2012-10-07 1:03 ` Eric Schulte
2012-10-08 12:35 ` Andreas Leha
2012-10-09 2:31 ` Eric Schulte [this message]
2012-10-09 16:15 ` Andreas Leha
2012-10-03 21:07 Andreas Leha
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