* [bug] :eval header argument ignored in the #+call: block
@ 2012-01-20 14:44 Leo Alekseyev
2012-01-20 18:46 ` Eric Schulte
0 siblings, 1 reply; 2+ messages in thread
From: Leo Alekseyev @ 2012-01-20 14:44 UTC (permalink / raw)
To: Emacs orgmode
Suppose I have a code block foo, and I want to call it several times
in my org file. However, foo may be a slow function, and so any time
I evaluate buffer non-interactively (e.g. HTML export) I want to
enable only one out of many calls to :foo
The following doesn't work, but I think it should, since the #+call:
line should run foo with the header argument :eval no-export
#+NAME: foo
#+BEGIN_SRC R :var turn_on_output="FALSE"
if(turn_on_output) { X11() }
#+END_SRC
#+CALL: foo[:eval no-export](turn_on_output="TRUE") ## this STILL
evaluates on export
Furthermore, a better solution to the situation I described above
might be to set the :eval no-export header argument in the source
block definition, and then over-ride it in the one #+call line that I
want to run during export. Unfortunately, it doesn't seem that this
is currently possible.
--Leo
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [bug] :eval header argument ignored in the #+call: block
2012-01-20 14:44 [bug] :eval header argument ignored in the #+call: block Leo Alekseyev
@ 2012-01-20 18:46 ` Eric Schulte
0 siblings, 0 replies; 2+ messages in thread
From: Eric Schulte @ 2012-01-20 18:46 UTC (permalink / raw)
To: Leo Alekseyev; +Cc: Emacs orgmode
[-- Attachment #1: Type: text/plain, Size: 834 bytes --]
Leo Alekseyev <dnquark@gmail.com> writes:
> Suppose I have a code block foo, and I want to call it several times
> in my org file. However, foo may be a slow function, and so any time
> I evaluate buffer non-interactively (e.g. HTML export) I want to
> enable only one out of many calls to :foo
>
> The following doesn't work, but I think it should, since the #+call:
> line should run foo with the header argument :eval no-export
>
> #+NAME: foo
> #+BEGIN_SRC R :var turn_on_output="FALSE"
> if(turn_on_output) { X11() }
> #+END_SRC
>
> #+CALL: foo[:eval no-export](turn_on_output="TRUE") ## this STILL
> evaluates on export
>
Thanks for sharing this example. It indicated two bugs in the existing
code base. I've just pushed up fixes for both bugs, the attached
Org-mode file can be used to confirm that this is now working.
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: foo.org --]
[-- Type: text/x-org, Size: 524 bytes --]
#+Title: foo
A buffer in which we want =foo= to be run when called interactively
from /any/ call line, but to only be run by a single call line on
export. Ensure this works by executing this buffer to html while
tracking =foo-called.times= with =tail -f /tmp/foo-called.times=.
#+NAME: foo
#+BEGIN_SRC sh :var id="foo"
echo "called by $id at $(date +%s.%N)" |tee -a /tmp/foo-called.times
#+END_SRC
This will *not* be run on export.
#+call: foo[:eval no-export]("bar")
This *will* be run on export.
#+call: foo("baz")
[-- Attachment #3: Type: text/plain, Size: 552 bytes --]
>
> Furthermore, a better solution to the situation I described above
> might be to set the :eval no-export header argument in the source
> block definition, and then over-ride it in the one #+call line that I
> want to run during export. Unfortunately, it doesn't seem that this
> is currently possible.
>
The reason this second option doesn't work is that there is currently no
positive argument to the :eval header argument, rather it can only be
used to *inhibit* evaluation.
Cheers,
>
> --Leo
>
--
Eric Schulte
http://cs.unm.edu/~eschulte/
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-01-20 14:44 [bug] :eval header argument ignored in the #+call: block Leo Alekseyev
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