From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Berry, Charles" <ccberry@ucsd.edu>
Subject: Re: header argument :noweb-ref seems can't be resolved
Date: Tue, 19 Dec 2017 04:59:49 +0000
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To: "numbchild@gmail.com" <numbchild@gmail.com>
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> On Dec 18, 2017, at 9:28 AM, numbchild@gmail.com wrote:
>=20
> Hope someone can help here.
>=20

OK. I think I have it. `org-babel-params-from-properties' uses `org-babel-c=
urrent-src-block' to figure out where to look for properties. And o-b-c-s-b=
-l is let bound in `org-babel-noweb-expand-references' to the src block loc=
ation with the noweb reference, e.g. `<<whatnot>>'.=20


The problem can be illustrated like so. Put this in a buffer:

#+begin_src org

  ,* abc
    :PROPERTIES:
    :header-args: :noweb-ref abcblocks
    :END:

  ,#+name: got-abc
  ,#+begin_src R
  1+2
  ,#+end_src


  ,* def

#+end_src

execute this:

#+begin_src emacs-lisp
  (defun show-prob (obcsbl)
    (let
	((org-babel-current-src-block-location obcsbl))
     (assq :noweb-ref (nth 2 (org-babel-get-src-block-info)))))
#+end_src

Then put point in the got-abc src block and type=20

    M-: (show-prob (point)) RET

and you will see `(:noweb-ref . "abcblocks")' in the minibuffer.

Now try=20

   M-:  (show-prob 1000) RET

and the result is `nil'.

The problem can be fixed by let-binding `org-babel-current-src-block-locati=
on' to `beg-body' in `org-babel-noweb-expand-references' like this

		  (org-babel-map-src-blocks nil
			    (let*
				((org-babel-current-src-block-location beg-body)
				 (i (org-babel-get-src-block-info 'light)))
=09
but maybe it is better to change  `org-babel-params-from-properties'.

WDYT?

Chuck