From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas S. Dye <tsd@tsdye.com>
Subject: Re: Generate BEGIN_EXAMPLE block dynamically during export
Date: Tue, 16 Feb 2016 11:03:44 -1000
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To: Kaushal Modi <kaushal.modi@gmail.com>
Cc: emacs-org list <emacs-orgmode@gnu.org>

Aloha Kaushal,

Kaushal Modi writes:

> Thanks Tom.
>
> Your solution almost gets me there but I still need to manually update the
> tar-file argument value in the #+CALL lines.
>
> What I am looking for is for something like below to work (but it isn't). I
> have multiple such #+CALL lines and I would like to not manually update the
> tar-file arg in all those.
> Below does not work because the {{{TAR_FILE}}} macro does not get expanded
> in the #+CALL line.
>
> #+MACRO: TAR_FILE some_file.tar.gz
>
> #+NAME: tar-eg
> #+HEADER: :var tar-file="" :exports none
> #+BEGIN_SRC emacs-lisp
> (format "> tar xzvf %s" tar-file)
> #+END_SRC
>
> #+CALL: tar-eg(tar-file="{{{TAR_FILE}}}") :wrap example :exports results

Perhaps this?

,--------------------------------------------------------------
| #+PROPERTY: header-args:emacs-lisp :var tar-file="bar.tar.gz"
|                                                              
| #+name: tar-eg                                               
| #+begin_src emacs-lisp                                       
| (format "> tar xzvf %s" tar-file)                            
| #+end_src                                                    
|                                                              
| #+CALL: tar-eg() :wrap example :exports results              
|                                                              
| #+results:                                                   
| #+BEGIN_example                                              
| > tar xzvf bar.tar.gz                                        
| #+END_example                                                
`--------------------------------------------------------------

hth,
Tom


-- 
Thomas S. Dye
http://www.tsdye.com