return link to :file when using #+call

return link to :file when using #+call

[Myles English]

Hello all,

Please could someone show me how to get an org link to the file in the
results when using #+call with an R source block?

This is the test I am using:

#+source: foo()
#+begin_src R :file bar.png
plot(1,1)
#+end_src

#+results: foo()
[[file:bar.png]]
( so that works fine )

#+call: foo[:file baz.png]()

#+results: foo[:file baz.png]()
: baz.png
( but I wanted [[file:baz.png]] there )

I'm using the commit 1495bc6 of 12th December.

Thank you,

Myles

Re: return link to :file when using #+call

[Myles English]

Myles English <mylesenglish <at> gmail.com> writes:

> #+source: foo()
> #+begin_src R :file bar.png
> plot(1,1)
> #+end_src

This works but I have to repeat the filename:

#+call: foo[:file baz.png]() :file baz.png

#+results: foo[:file baz.png]()
[[file:baz.png]]

  Myles

Re: Re: return link to :file when using #+call

[Eric Schulte]

Hi Myles,

Currently I believe the best option is the solution you posted below,
the file name is repeated because both the code block and the call line
need to know the file name to create the file and the link respectively.

Cheers -- Eric

Myles English <mylesenglish@gmail.com> writes:

> Myles English <mylesenglish <at> gmail.com> writes:
>
>> #+source: foo()
>> #+begin_src R :file bar.png
>> plot(1,1)
>> #+end_src
>
> This works but I have to repeat the filename:
>
> #+call: foo[:file baz.png]() :file baz.png
>
> #+results: foo[:file baz.png]()
> [[file:baz.png]]
>
>   Myles
>
>
> _______________________________________________
> Emacs-orgmode mailing list
> Please use `Reply All' to send replies to the list.
> Emacs-orgmode@gnu.org
> http://lists.gnu.org/mailman/listinfo/emacs-orgmode

Re: Re: return link to :file when using #+call

[Myles English]

Thanks for your answer Eric.  Recent changes as per
http://thread.gmane.org/gmane.emacs.orgmode/35396
means that this no longer works.

To recap: what I would like to do is to #+call an R source
block, passing a filename, and have it write a plot to that file and
also insert a link to that file in the org file.  Any ideas?

Here is what I have tried:

#+source: foo()
#+begin_src R :file bar.png :results graphics
plot(1,1)
#+end_src

#+call: foo[:file baz.png]()

#+results: foo[:file baz.png]()
: baz.png

baz.png contains a plot, but no file link is inserted.

#+call: foo()

#+results: foo()
: bar.png

bar.png contains a plot, but no file link is inserted.

#+call: foo[:file biff.png]() :file biff.png

#+results: foo[:file biff.png]()
[[file:biff.png]]

a file link is inserted but file biff.png contains 'biff.png'

#+call: foo[:file pow.png]() :file pow.png :results graphics

#+results: foo[:file pow.png]()
[[file:pow.png]]

a file link is inserted but file pow.png contains 'pow.png'

Thanks,

Myles


On Wed, 05 Jan 2011 23:28:00 -0700
"Eric Schulte" <schulte.eric@gmail.com> wrote:

> Hi Myles,
> 
> Currently I believe the best option is the solution you posted below,
> the file name is repeated because both the code block and the call
> line need to know the file name to create the file and the link
> respectively.
> 
> Cheers -- Eric
> 
> Myles English <mylesenglish@gmail.com> writes:
> 
> > Myles English <mylesenglish <at> gmail.com> writes:
> >
> >> #+source: foo()
> >> #+begin_src R :file bar.png
> >> plot(1,1)
> >> #+end_src
> >
> > This works but I have to repeat the filename:
> >
> > #+call: foo[:file baz.png]() :file baz.png
> >
> > #+results: foo[:file baz.png]()
> > [[file:baz.png]]
> >
> >   Myles
> >
> >
> > _______________________________________________
> > Emacs-orgmode mailing list
> > Please use `Reply All' to send replies to the list.
> > Emacs-orgmode@gnu.org
> > http://lists.gnu.org/mailman/listinfo/emacs-orgmode

Re: return link to :file when using #+call

[Dan Davison]

Myles English <mylesenglish@gmail.com> writes:

> Thanks for your answer Eric.  Recent changes as per
> http://thread.gmane.org/gmane.emacs.orgmode/35396
> means that this no longer works.

Thanks for bringing this up Myles.

> To recap: what I would like to do is to #+call an R source
> block, passing a filename, and have it write a plot to that file and
> also insert a link to that file in the org file.  Any ideas?
>
> Here is what I have tried:
>
> #+source: foo()
> #+begin_src R :file bar.png :results graphics
> plot(1,1)
> #+end_src
>
>
> #+call: foo[:file baz.png]()
>
> #+results: foo[:file baz.png]()
> : baz.png
>
> baz.png contains a plot, but no file link is inserted.

Yes you need :results file, so the line should be

#+call: foo[:file baz.png]() :results file

Explanation: In simple single-block usage, :file automatically
sets :results file. But here :file in square brackets is passed to block
foo, so the #+call line needs its own :results file. (And in fact :file
would be wrong; see below).

>
> #+call: foo()
>
> #+results: foo()
> : bar.png
>
> bar.png contains a plot, but no file link is inserted.

Yep. Same as above, except here you haven't overridden the file name.

> #+call: foo[:file biff.png]() :file biff.png
>
> #+results: foo[:file biff.png]()
> [[file:biff.png]]
>
> a file link is inserted but file biff.png contains 'biff.png'

Right, this one's kind of instructive for understanding this
stuff. Here, foo returns its file name as a string, so
"biff.png". The #+call line has been told to send its results to file
with the :file argument, and it takes that literally, writing the string
"biff.png" to its output file. So if what we want is a file containing
graphics, we are not going to want :file on the #+call line. What we
want is to interpret the string as a file name, and that's what :results
file does.

>
> #+call: foo[:file pow.png]() :file pow.png :results graphics
>
> #+results: foo[:file pow.png]()
> [[file:pow.png]]
>
> a file link is inserted but file pow.png contains 'pow.png'

Same as above. #+call receives a string from foo; it can't turn that
string into the desired graphics. In fact, :results graphics currently
only has any effect on an R block (i.e. at an R block, or passed to an R
block inside [ ... ]).

Dan

>
> Thanks,
>
> Myles
>
>
> On Wed, 05 Jan 2011 23:28:00 -0700
> "Eric Schulte" <schulte.eric@gmail.com> wrote:
>
>> Hi Myles,
>> 
>> Currently I believe the best option is the solution you posted below,
>> the file name is repeated because both the code block and the call
>> line need to know the file name to create the file and the link
>> respectively.
>> 
>> Cheers -- Eric
>> 
>> Myles English <mylesenglish@gmail.com> writes:
>> 
>> > Myles English <mylesenglish <at> gmail.com> writes:
>> >
>> >> #+source: foo()
>> >> #+begin_src R :file bar.png
>> >> plot(1,1)
>> >> #+end_src
>> >
>> > This works but I have to repeat the filename:
>> >
>> > #+call: foo[:file baz.png]() :file baz.png
>> >
>> > #+results: foo[:file baz.png]()
>> > [[file:baz.png]]
>> >
>> >   Myles
>> >
>> >
>> > _______________________________________________
>> > Emacs-orgmode mailing list
>> > Please use `Reply All' to send replies to the list.
>> > Emacs-orgmode@gnu.org
>> > http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>
>
> _______________________________________________
> Emacs-orgmode mailing list
> Please use `Reply All' to send replies to the list.
> Emacs-orgmode@gnu.org
> http://lists.gnu.org/mailman/listinfo/emacs-orgmode