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From: Marc-Oliver Ihm <marc-oliver.ihm@online.de>
To: Eric Schulte <eric.schulte@gmx.com>
Cc: Andreas Leha <andreas.leha@med.uni-goettingen.de>, emacs-orgmode@gnu.org
Subject: Re: [babel] #+call-line removes hlines and headings ?
Date: Tue, 31 Jan 2012 19:45:25 +0100	[thread overview]
Message-ID: <4F2836C5.7060209@online.de> (raw)
In-Reply-To: <87zkd5yxv7.fsf@gmx.com>

Hi Eric,

thanx ! That explains very clearly what I have seen, when trying to debug this phaenomenon.
So this behaviour is by design and I can work around :-)

kind regards, Marc



Am 30.01.2012 17:10, schrieb Eric Schulte:
> Marc-Oliver Ihm<marc-oliver.ihm@online.de>  writes:
>
>> Am 29.01.2012 11:42, schrieb Andreas Leha:
>>> :colnames yes
>> Hi Andreas,
>>
>> Thanx, that is definitely a solution !
>>
>> And I agree with you, that its a bit puzzling, that both cases behave differently;
>> the #+call-line should just have the same result as the #+begin_src-line, to which after all
>> it just refers. Beeing able to change the behaviour of the #+call-line
>> with header arguments is
>> of course a good thing, but it should not be necessary here in the first place.
>>
>> However, this would require a patch to the babel-code, which I am
>> currently not able to produce, because I already
>> got lost in debugging this problem :-) And of course I am not sure
>> what would be the side effects of changing this
>> behaviour ...
>>
>> So, thanx again for pointing out this very easy workaround !
>>
>>
>> with kind regards, Marc-Oliver Ihm
>>
>
> To explain the cause (if not rationale) for the current behavior; when
> executing a call line, an ephemeral code block is created at the point
> of the call line.  The result of the called function is passed into this
> ephemeral block, and the output of the block is inserted into the
> buffer.
>
> This is why call lines have *two* possible sets of header arguments, one
> to pass to the original called code block, and one for local effect in
> the ephemeral block.
>
> The reason the colnames header argument is required for the call line
> and not the code block, is because hlines are only stripped when data
> passes *into* a code block as a variable.  In this case the 'hlines are
> stripped when the table passes into the ephemeral code blocks.
>
> Hope the above is more illuminating that confusing,
>

      reply	other threads:[~2012-01-31 18:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-29  8:08 [babel] #+call-line removes hlines and headings ? Marc-Oliver Ihm
2012-01-29 10:42 ` Andreas Leha
2012-01-29 14:21   ` Marc-Oliver Ihm
2012-01-30 16:10     ` Eric Schulte
2012-01-31 18:45       ` Marc-Oliver Ihm [this message]

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