From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Charles C. Berry" <ccberry@ucsd.edu>
Subject: Re: export: noweb blocks substituted versus verbatim ?
Date: Sat, 26 Sep 2015 19:54:18 -0700
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To: Andreas Leha <andreas.leha@med.uni-goettingen.de>
Cc: emacs-orgmode@gnu.org

On Sat, 26 Sep 2015, Andreas Leha wrote:

> Hi Brian,
>
> Brian Beckman <bc.beckman@gmail.com> writes:
>> Hello -- I have a situation where some code blocks with noweb references in
>> them <<like-this>> are substituted inline when I export the document, and
>> other code blocks with noweb references, are copied verbatim into the
>> exported PDF. I do not know what causes this difference in behavior and I
>> don't know how to control it, but I'd like to control it. I'd like to be
>> able to specify that some blocks have behavior 1 (references substituted
>> inline) and other blocks have behavior 2 (references verbatim).
>>
>> I'm sure this is pilot error, but I'm stumped and would be grateful for advice.
>
> [[ omitted: the MVE ]]
>
> As far as I can see, the difference is that some of the code blocks have
> the header argument `:noweb yes', while others do not.
>
> I do not know how to achieve working noweb extension during evaluation
> but omitting noweb extension during export, though.
>

You can do like this (apart from anonymous backends):

#+header: :noweb (if (org-bound-and-true-p org-export-current-backend) "no" "yes")

HTH,

Chuck