The docs <https://orgmode.org/worg/org-contrib/babel/intro.html> have this
example:

#+name: square
#+header: :var x=0
#+begin_src python
return x*x
#+end_src

#+call: square(x=6)

...so yes, "return", but with

(defun myelsquare (x)
   (* x x))

isn't the final thing evaluated what is "returned" with Elisp? AFAIK there
is no explicit return with Elisp. #+call can't really call a function, only
named blocks of REPL-style calculator snippets?

Also, today I find that a new start of Emacs doesn't load my LOB file, i.e.,

(custom-set-variables
...
 '(org-babel-lob-files (quote ("~/org/worg/library-of-babel.org")))
...

was being blown off, i.e., not populating the org-babel-library-of-babel
variable. But today org-babel-lob-injest does seem to work, i.e., it did
populate org-babel-library-of-babel. I wonder what's up.




On Tue, Apr 3, 2018 at 4:44 PM, Nicolas Goaziou <mail@nicolasgoaziou.fr>
wrote:

> Lawrence Bottorff <borgauf@gmail.com> writes:
>
> > I've been trying to grok LOB again. So I've cloned the worg git and
> > library-of-babel.el is one of the files. org-babel-lob-injest didn't
> > work,
>
> What doesn't work? You call `org-babel-lob-ingest', specify a file, and
> it stores all source code blocks in the file for later use.
>
> > Now, in my org file I put this:
> >
> > #+lob: write(file="jsontest")
>
> This should be #+call: write(...)
>
> >
> > and try C-c C-c on it. Nothing. My minibuffer says "local setup has been
> > refreshed". How does one use, call a LOB function? Also, while I'm
> > demonstrating my rank noobian-ness, I try this:
> >
> > #+name: myelsquare
> > #+header: :var x=0
> >
> > #+begin_src emacs-lisp
> >   (* x x)
> > #+end_src
> >
> > #+call: myelsquare(x=6)
> >
> > #+RESULTS: : 36
> >
> > but this results in
> >
> > #+name: myelsquare
> > #+header: :var x=0
> >
> > #+begin_src emacs-lisp
> >   (defun myelsquare (x)
> >       (* x x))
> > #+end_src
> >
> > #+call: myelsquare(x=6)
> >
> > #+RESULTS:
> > : myelsquare2
> >
> > After a #+call:... I use C-c C-c to evaluate it. What am I missing
> > here?
>
> Your second block defines a function, but doesn't return its results.
> "#+call: myelsquare(...)" expects to find a block named "myelsquare",
> not an Elisp function named "myelsquare".
>
> Regards,
>
> --
> Nicolas Goaziou
>