From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rick Frankel <rick@rickster.com>
Subject: Re: input data for babel blocks
Date: Tue, 01 Oct 2013 10:29:49 -0400
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To: Alan Schmitt <alan.schmitt@polytechnique.org>
Cc: emacs-orgmode@gnu.org, Charles Berry <ccberry@ucsd.edu>, Eric Schulte <schulte.eric@gmail.com>

On 2013-10-01 09:01, Alan Schmitt wrote:
> I'm sorry, I don't see the answer to this above. The only example I
> could find in the manual is this one
> http://orgmode.org/manual/noweb_002dref.html#noweb_002dref which does
> not address using noweb with different languages.
> 
> I did some experiments and I'm even more confused. Here is a test where
> I want to feed the results of "ls" in a shell block as an ocaml
> list. This is what I tried:
> 
> #+BEGIN_SRC sh :noweb-ref testing
> echo "["
> for i in `ls`; do
> echo \"$i;\"
> done
> echo "]"
> #+END_SRC
> 
> #+BEGIN_SRC ocaml :noweb yes
> let x =
> <<testing>>
> in x
> #+END_SRC
> 
> This is clearly wrong because this is what ends up in the toplevel:
> 
> let x =
> echo "["
> for i in `ls`; do
> echo \"$i;\"
> done
> echo "]"
> in x;;
> 

You're close. The noweb ref should be a named src block which is
executed, not expanded, so, (note the named shell source block and the
parens in the noweb reference):

#+name: testing
#+BEGIN_SRC sh :results raw
echo "["
ls *.org | sed 's/$/;/'
echo "]"
#+END_SRC

#+BEGIN_SRC ocaml :noweb yes
let x =
<<testing()>>
in x
#+END_SRC

rick