Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-04 Thread Rainer M Krug
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On 03/09/10 19:51, Eric S Fraga wrote:
> On Fri, 03 Sep 2010 09:05:24 -0600, "Eric Schulte"  
> wrote:
>>
>> Rainer M Krug  writes:
>>
>>> On 03/09/10 16:32, Rainer M Krug wrote:
 On 03/09/10 15:40, Eric Schulte wrote:
> Hi Rainer,

> As part of the export process Org-mode copies the contents of the
> Org-mode file to a temporary buffer in which the business of exportation
> is performed.  This temporary buffer is not associated with any file so
> (buffer-file-name) returns nil, which is causing the problem you are
> experiencing.  I think the best solution would be to replace the call to
> (buffer-file-name) with the actual name of the file, e.g.

> #+begin_src sh :var file=(vc-working-revision 
> "~/src/babel-dev/scraps.org") :exports results
>   echo $file Revision
> #+end_src

 Hi Eric

 thanks a lot for the clarification - that makes perfect sense. I will do
 as suggested.
>>>
>>> Thanks - it is working now.
>>> But it is a little bit awkward to have the file name (incl. path)
>>> somewhere in the document - can create some problems when renaming the
>>> file or saving it somewhere else).
>>> Is it possible to define it as a kind of variable (property?) in the
>>> headers of the file and reference it in the org file later?
>>>
>>
>> Oh,
>>
>> I've just remembered that during export Org-mode saves this file-name
>> information in the temporary variable `org-current-export-file'.
>>
>> So the following will work, even though it relies upon undocumented
>> internals of Org-mode which could change at some point.
>>
>> #+begin_src sh :var file=(vc-working-revision (or (buffer-file-name) 
>> org-current-export-file)) :exports results
>>   echo $file Revision
>> #+end_src
>>
>> Cheers -- Eric
> 
> And this works very well with an inline src snippet (tested with git
> and RCS).  Very nice!

Thanks a lot Eric F. - that inline syntax was also something I was
looking for - I'll put it into my document on Monday morning.

Cheers,

Rainer

> 
> ,
> | * revision control
> |   The version of this file is 
> |src_emacs-lisp{(vc-working-revision (or (buffer-file-name) org-current-: 
> export-file))}.
> `
> 
> Thanks!


- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa

Tel:+33 - (0)9 53 10 27 44
Cell:   +27 - (0)8 39 47 90 42
Fax (SA):   +27 - (0)8 65 16 27 82
Fax (D) :   +49 - (0)3 21 21 25 22 44
Fax (FR):   +33 - (0)9 58 10 27 44
email:  rai...@krugs.de

Skype:  RMkrug
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Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Eric S Fraga
On Fri, 03 Sep 2010 09:05:24 -0600, "Eric Schulte"  
wrote:
> 
> Rainer M Krug  writes:
> 
> > On 03/09/10 16:32, Rainer M Krug wrote:
> >> On 03/09/10 15:40, Eric Schulte wrote:
> >>> Hi Rainer,
> >> 
> >>> As part of the export process Org-mode copies the contents of the
> >>> Org-mode file to a temporary buffer in which the business of exportation
> >>> is performed.  This temporary buffer is not associated with any file so
> >>> (buffer-file-name) returns nil, which is causing the problem you are
> >>> experiencing.  I think the best solution would be to replace the call to
> >>> (buffer-file-name) with the actual name of the file, e.g.
> >> 
> >>> #+begin_src sh :var file=(vc-working-revision 
> >>> "~/src/babel-dev/scraps.org") :exports results
> >>>   echo $file Revision
> >>> #+end_src
> >> 
> >> Hi Eric
> >> 
> >> thanks a lot for the clarification - that makes perfect sense. I will do
> >> as suggested.
> >
> > Thanks - it is working now.
> > But it is a little bit awkward to have the file name (incl. path)
> > somewhere in the document - can create some problems when renaming the
> > file or saving it somewhere else).
> > Is it possible to define it as a kind of variable (property?) in the
> > headers of the file and reference it in the org file later?
> >
> 
> Oh,
> 
> I've just remembered that during export Org-mode saves this file-name
> information in the temporary variable `org-current-export-file'.
> 
> So the following will work, even though it relies upon undocumented
> internals of Org-mode which could change at some point.
> 
> #+begin_src sh :var file=(vc-working-revision (or (buffer-file-name) 
> org-current-export-file)) :exports results
>   echo $file Revision
> #+end_src
> 
> Cheers -- Eric

And this works very well with an inline src snippet (tested with git
and RCS).  Very nice!

,
| * revision control
|   The version of this file is 
|src_emacs-lisp{(vc-working-revision (or (buffer-file-name) org-current-: 
export-file))}.
`

Thanks!

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Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Eric Schulte
Rainer M Krug  writes:

> On 03/09/10 16:32, Rainer M Krug wrote:
>> On 03/09/10 15:40, Eric Schulte wrote:
>>> Hi Rainer,
>> 
>>> As part of the export process Org-mode copies the contents of the
>>> Org-mode file to a temporary buffer in which the business of exportation
>>> is performed.  This temporary buffer is not associated with any file so
>>> (buffer-file-name) returns nil, which is causing the problem you are
>>> experiencing.  I think the best solution would be to replace the call to
>>> (buffer-file-name) with the actual name of the file, e.g.
>> 
>>> #+begin_src sh :var file=(vc-working-revision "~/src/babel-dev/scraps.org") 
>>> :exports results
>>>   echo $file Revision
>>> #+end_src
>> 
>> Hi Eric
>> 
>> thanks a lot for the clarification - that makes perfect sense. I will do
>> as suggested.
>
> Thanks - it is working now.
> But it is a little bit awkward to have the file name (incl. path)
> somewhere in the document - can create some problems when renaming the
> file or saving it somewhere else).
> Is it possible to define it as a kind of variable (property?) in the
> headers of the file and reference it in the org file later?
>

Oh,

I've just remembered that during export Org-mode saves this file-name
information in the temporary variable `org-current-export-file'.

So the following will work, even though it relies upon undocumented
internals of Org-mode which could change at some point.

#+begin_src sh :var file=(vc-working-revision (or (buffer-file-name) 
org-current-export-file)) :exports results
  echo $file Revision
#+end_src

Cheers -- Eric

>
> Rainer
>
>> 
>> Cheers,
>> 
>> Rainer
>> 
>> 
>>> Cheers -- Eric
>> 
>>> Rainer M Krug  writes:
>> 
 Hi

 when I insert the following source block

 #+begin_src sh :exports results :var
 ver=(vc-working-revision(buffer-file-name))
   echo Revision $ver
 #+end_src

 into a svn (probably other VCs as well) registered file and execute it
 via C-c C-c, it gives me the revision:

 #+begin_src sh :exports results :var
 ver=(vc-working-revision(buffer-file-name))
   echo Revision $ver
 #+end_src

 #+results:
 : Revision 191

 So when exporting, I would expect that it also prints "Revision 191",
 but I get an error:

 vc-file-getprop: Wrong type argument: stringp, nil

 Tangling the file with :var ver=(vc-working-revision(buffer-file-name))
 as a header argument also works fine.

 As the evaluation works, I assume that is a bug somewhere?

 Cheers,

 Rainer
>> 
>> 

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Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Rainer M Krug
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On 03/09/10 16:32, Rainer M Krug wrote:
> On 03/09/10 15:40, Eric Schulte wrote:
>> Hi Rainer,
> 
>> As part of the export process Org-mode copies the contents of the
>> Org-mode file to a temporary buffer in which the business of exportation
>> is performed.  This temporary buffer is not associated with any file so
>> (buffer-file-name) returns nil, which is causing the problem you are
>> experiencing.  I think the best solution would be to replace the call to
>> (buffer-file-name) with the actual name of the file, e.g.
> 
>> #+begin_src sh :var file=(vc-working-revision "~/src/babel-dev/scraps.org") 
>> :exports results
>>   echo $file Revision
>> #+end_src
> 
> Hi Eric
> 
> thanks a lot for the clarification - that makes perfect sense. I will do
> as suggested.

Thanks - it is working now.
But it is a little bit awkward to have the file name (incl. path)
somewhere in the document - can create some problems when renaming the
file or saving it somewhere else).
Is it possible to define it as a kind of variable (property?) in the
headers of the file and reference it in the org file later?

Rainer

> 
> Cheers,
> 
> Rainer
> 
> 
>> Cheers -- Eric
> 
>> Rainer M Krug  writes:
> 
>>> Hi
>>>
>>> when I insert the following source block
>>>
>>> #+begin_src sh :exports results :var
>>> ver=(vc-working-revision(buffer-file-name))
>>>   echo Revision $ver
>>> #+end_src
>>>
>>> into a svn (probably other VCs as well) registered file and execute it
>>> via C-c C-c, it gives me the revision:
>>>
>>> #+begin_src sh :exports results :var
>>> ver=(vc-working-revision(buffer-file-name))
>>>   echo Revision $ver
>>> #+end_src
>>>
>>> #+results:
>>> : Revision 191
>>>
>>> So when exporting, I would expect that it also prints "Revision 191",
>>> but I get an error:
>>>
>>> vc-file-getprop: Wrong type argument: stringp, nil
>>>
>>> Tangling the file with :var ver=(vc-working-revision(buffer-file-name))
>>> as a header argument also works fine.
>>>
>>> As the evaluation works, I assume that is a bug somewhere?
>>>
>>> Cheers,
>>>
>>> Rainer
> 
> 

- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa

Tel:+33 - (0)9 53 10 27 44
Cell:   +27 - (0)8 39 47 90 42
Fax (SA):   +27 - (0)8 65 16 27 82
Fax (D) :   +49 - (0)3 21 21 25 22 44
Fax (FR):   +33 - (0)9 58 10 27 44
email:  rai...@krugs.de

Skype:  RMkrug
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Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Rainer M Krug
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On 03/09/10 15:40, Eric Schulte wrote:
> Hi Rainer,
> 
> As part of the export process Org-mode copies the contents of the
> Org-mode file to a temporary buffer in which the business of exportation
> is performed.  This temporary buffer is not associated with any file so
> (buffer-file-name) returns nil, which is causing the problem you are
> experiencing.  I think the best solution would be to replace the call to
> (buffer-file-name) with the actual name of the file, e.g.
> 
> #+begin_src sh :var file=(vc-working-revision "~/src/babel-dev/scraps.org") 
> :exports results
>   echo $file Revision
> #+end_src

Hi Eric

thanks a lot for the clarification - that makes perfect sense. I will do
as suggested.

Cheers,

Rainer

> 
> Cheers -- Eric
> 
> Rainer M Krug  writes:
> 
>> Hi
>>
>> when I insert the following source block
>>
>> #+begin_src sh :exports results :var
>> ver=(vc-working-revision(buffer-file-name))
>>   echo Revision $ver
>> #+end_src
>>
>> into a svn (probably other VCs as well) registered file and execute it
>> via C-c C-c, it gives me the revision:
>>
>> #+begin_src sh :exports results :var
>> ver=(vc-working-revision(buffer-file-name))
>>   echo Revision $ver
>> #+end_src
>>
>> #+results:
>> : Revision 191
>>
>> So when exporting, I would expect that it also prints "Revision 191",
>> but I get an error:
>>
>> vc-file-getprop: Wrong type argument: stringp, nil
>>
>> Tangling the file with :var ver=(vc-working-revision(buffer-file-name))
>> as a header argument also works fine.
>>
>> As the evaluation works, I assume that is a bug somewhere?
>>
>> Cheers,
>>
>> Rainer


- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa

Tel:+33 - (0)9 53 10 27 44
Cell:   +27 - (0)8 39 47 90 42
Fax (SA):   +27 - (0)8 65 16 27 82
Fax (D) :   +49 - (0)3 21 21 25 22 44
Fax (FR):   +33 - (0)9 58 10 27 44
email:  rai...@krugs.de

Skype:  RMkrug
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Re: [Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Eric Schulte
Hi Rainer,

As part of the export process Org-mode copies the contents of the
Org-mode file to a temporary buffer in which the business of exportation
is performed.  This temporary buffer is not associated with any file so
(buffer-file-name) returns nil, which is causing the problem you are
experiencing.  I think the best solution would be to replace the call to
(buffer-file-name) with the actual name of the file, e.g.

#+begin_src sh :var file=(vc-working-revision "~/src/babel-dev/scraps.org") 
:exports results
  echo $file Revision
#+end_src

Cheers -- Eric

Rainer M Krug  writes:

> Hi
>
> when I insert the following source block
>
> #+begin_src sh :exports results :var
> ver=(vc-working-revision(buffer-file-name))
>   echo Revision $ver
> #+end_src
>
> into a svn (probably other VCs as well) registered file and execute it
> via C-c C-c, it gives me the revision:
>
> #+begin_src sh :exports results :var
> ver=(vc-working-revision(buffer-file-name))
>   echo Revision $ver
> #+end_src
>
> #+results:
> : Revision 191
>
> So when exporting, I would expect that it also prints "Revision 191",
> but I get an error:
>
> vc-file-getprop: Wrong type argument: stringp, nil
>
> Tangling the file with :var ver=(vc-working-revision(buffer-file-name))
> as a header argument also works fine.
>
> As the evaluation works, I assume that is a bug somewhere?
>
> Cheers,
>
> Rainer

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[Orgmode] [babel] Error with source block and variable on export - bug?

2010-09-03 Thread Rainer M Krug
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Hi

when I insert the following source block

#+begin_src sh :exports results :var
ver=(vc-working-revision(buffer-file-name))
  echo Revision $ver
#+end_src

into a svn (probably other VCs as well) registered file and execute it
via C-c C-c, it gives me the revision:

#+begin_src sh :exports results :var
ver=(vc-working-revision(buffer-file-name))
  echo Revision $ver
#+end_src

#+results:
: Revision 191

So when exporting, I would expect that it also prints "Revision 191",
but I get an error:

vc-file-getprop: Wrong type argument: stringp, nil

Tangling the file with :var ver=(vc-working-revision(buffer-file-name))
as a header argument also works fine.

As the evaluation works, I assume that is a bug somewhere?

Cheers,

Rainer

- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa

Tel:+33 - (0)9 53 10 27 44
Cell:   +27 - (0)8 39 47 90 42
Fax (SA):   +27 - (0)8 65 16 27 82
Fax (D) :   +49 - (0)3 21 21 25 22 44
Fax (FR):   +33 - (0)9 58 10 27 44
email:  rai...@krugs.de

Skype:  RMkrug
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