Re: [BABEL] Tangling to a hierarchy of files?

From: Rainer M Krug <r.m.krug@gmail.com>
To: Eric Schulte <schulte.eric@gmail.com>
Cc: emacs-orgmode@gnu.org,
	Christopher Maier <christopher.maier@gmail.com>,
	"Charles C. Berry" <cberry@tajo.ucsd.edu>
Subject: Re: [BABEL] Tangling to a hierarchy of files?
Date: Wed, 19 Jan 2011 11:05:33 +0100	[thread overview]
Message-ID: <4D36B76D.9020502@gmail.com> (raw)
In-Reply-To: <87tyh5icir.fsf@gmail.com>

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On 01/19/2011 08:22 AM, Eric Schulte wrote:
> "Charles C. Berry" <cberry@tajo.ucsd.edu> writes:
> 
>> On Wed, 19 Jan 2011, Christopher Maier wrote:
>>
>>> I've been experimenting with literate programming using Org mode recently and am
>>> really enjoying it.  I am trying to figure out the best way to create a nested
>>> hierarchy of tangled files from a single Org file, and am not sure the best way
>>> to go about it.
>>>
>>> I know that, for example, this block, when tangled, will produce a file
>>> "foo.clj" in the same directory as my Org file... so far so good.
>>>
>>> #+begin_src clojure :tangle foo.clj
>>>  (ns foo)
>>>
>>>  (defn my-inc [x]
>>>    (+ x 1))
>>> #+end_src
>>>
>>> However, I would like to be able to do something like this:
>>>
>>> #+begin_src clojure :tangle src/foo.clj
>>>  (ns foo)
>>>
>>>  (defn my-inc [x]
>>>    (+ x 1))
>>> #+end_src
>>>
> 
> In addition to the solution Charles posted, it is possible to put
> arbitrary elisp forms into header arguments, so the following
> alternative to your block above will create the directory (if it doesn't
> already exist) whenever the block is tangled or evaluated.
> 
> #+begin_src clojure :tangle (prog1 "src/foo.clj" (make-directory "src" "."))
>   (ns foo)
>   
>   (defn my-inc [x]
>     (+ x 1))
> #+end_src

Would it be possible, to include this into tangling, i.e. if the folder
in which the source file should be created does not exist, create it?

I remember vaguely a discussion along these lines some time ago, but I
don't remember the outcome?

Rainer

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

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