Re: Emacs-orgmode Digest, Vol 137, Issue 4

Re: Emacs-orgmode Digest, Vol 137, Issue 4

[edgar]

> Date: Tue, 04 Jul 2017 09:54:13 +0100
> From: Eric S Fraga <e.fraga@ucl.ac.uk>
> 
> I may be wrong but I thought that the library of babel provides a means
> of calling (#+CALL: or inline) the codes in the library but not
> necessarily use noweb to include them in other codes?

Oh! interesting. I have been calling functions like
#+BEGIN_SRC python :noweb yes :dir "../Data/Raw"
<<my-reference>>
#+END_SRC

with partial success (without "nesting"--calling a block with a 
reference to yet another block). I guess that "nested" calling of Noweb 
blocks is not really possible. Thank you for the answer :)

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Re: Emacs-orgmode Digest, Vol 137, Issue 4

[Eric S Fraga]

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Philosophically, #+call: or call_ are very different to noweb.

The latter is really only about insertion of code as is somewhere else
and it can be nested (see contrived example attached).  The former is
about invoking a babel src block with particular arguments and so is
much more flexible.  That block could of course include noweb elements:
again see example.

Export the org file to an ascii buffer (C-c C-e t A) and you'll see the
code expansions due to noweb and the result of calling a src block.

-- 
: Eric S Fraga via Emacs 26.0.50, Org release_9.0.9-551-g92e8c8

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#+name: one
#+begin_src octave :noweb yes
a = 1
#+end_src
#+name: two
#+begin_src octave :noweb yes
<<one>>
b = 2
#+end_src
#+name: three
#+begin_src octave :noweb yes
<<two>>
a+b
#+end_src

#+results: three
: 3

The results of calling three are call_three().

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