org-babel-tangle xml text

org-babel-tangle xml text

["Martin G. Skjæveland"]

Hi all,

I am quite new to the wonderful world of org-mode and org-babel. Right 
now I am using org-mode to make exercises for a semantic web programming 
course. org-mode and its friends give me a efficient writing tool, a 
presentation tool, export for web, export for print and a literate 
programming tool. That's nice!

But I have a question. I would like to include many code snippets 
written in RDF (XML/RDF, N3), which are languages not supported by 
org-babel [1], in my document, and I would like to use the "Edit the 
source code example at point in its native mode"-feature of org-mode and 
the tangle-feature of org-babel. Now I'm specifying the language as css 
(see below) since it is supported by org-babel and does not add any 
comments to output. This works for "tangling", but not for native editing.

Is there a way I can add xml and n3 to the list of supported languages? 
These languages does not need interpretation, so I'm thinking it should 
be quite easy to add. I have fumblingly tried

   (add-to-list 'org-babel-tangle-langs '("xml"))

and

   (add-to-list 'org-babel-tangle-langs '("css" "xml"))

but it as no effect.

Below is a sample of what I am currently using. Running org-babel-tangle 
gives me the correct foaf.rdf file. I would like to swap 'css' with 
'xml' so that the code can be edited and understood as xml.

#+SRCNAME: foaf-main
#+BEGIN_SRC css :tangle foaf.rdf
   <rdf:RDF>
     <<foaf-rel>>
   </rdf:RDF>
#+END_SRC

#+SRCNAME: foaf-rel
#+BEGIN_SRC css :tangle no
   <foaf:knows>
     <foaf:Person rdf:ID="timbl">
   </foaf:knows>
#+END_SRC


I hope this was clear -- and that someone can help.
Thanks!
Martin

  [1] 
http://orgmode.org/worg/org-contrib/babel/org-babel.php#reference-and-documentation

Re: org-babel-tangle xml text

[Eric Schulte]

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"Martin G. Skjæveland" <martige@ifi.uio.no> writes:

> Is there a way I can add xml and n3 to the list of supported
> languages? These languages does not need interpretation, so I'm
> thinking it should be quite easy to add. I have fumblingly tried
>
>   (add-to-list 'org-babel-tangle-langs '("xml"))
>
> and
>
>   (add-to-list 'org-babel-tangle-langs '("css" "xml"))
>
> but it as no effect.
>

Hi Martin,

The attached org-mode file contains instructions for adding xml and n3
to org-babel and org-babel-tangle.  Note that there may be another step
if the major mode for n3 is not n3-mode.  Best -- Eric


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* xml and n3

introduce org-babel to =xml= and =n3=
#+begin_src emacs-lisp :results silent
  (org-babel-add-interpreter "xml")
  (org-babel-add-interpreter "n3")
#+end_src

if say =n3= should be edited using =xml-mode=, then evaluate the
following adding this pair to =org-src-lang-modes=
#+begin_src emacs-lisp :results silent
  (add-to-list 'org-src-lang-modes '("n3" . xml))
#+end_src

inform org-babel-tangle of their existence and file extensions
#+begin_src emacs-lisp :results silent
  (add-to-list 'org-babel-tangle-langs '("xml" "xml" nil t))
  (add-to-list 'org-babel-tangle-langs '("n3" "n3" nil t))
#+end_src

#+begin_src xml :tangle example
  <first>
  </first>
#+end_src

#+begin_src n3 :tangle example
  n3 stuff
#+end_src

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