Hi Erik,
dyb...@lnouv.com (Erik L. Arneson) writes:
Hi everybody,
I have just started playing around with org-babel, and it's really
awesome! I've had great luck with emacs-lisp source blocks, and when I
saw that OCaml source blocks were also supported, I started testing
those out. Right away I ran into trouble, though. Observe the example
below:
#+tblname: example-table
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 6 |
#+source: ocaml-length
#+begin_src ocaml :var table=example-table
List.length table
#+end_src
#+results: ocaml-length
: Characters 14-15:
: let table = ((1 2) (2 3) (3 5) (4 6));
: ^
: Error: This expression is not a function; it cannot be applied
#+results: ocaml-length
It looks as though the 'table' variable is being passed as Lisp code
instead of OCaml. Is there something that my setup is missing, or does
the OCaml code perhaps need more help? Maybe I did something wrong?
Nope you diagnosed the problem exactly, this isn't an issue with your
setup, but rather with the current babel-ocaml integration. The
language specific interaction functionality tends to evolve by need, and
I don't think many people have been banging on ocaml through Babel up to
this point.
I've just pushed up a commit with teaches Babel how to feed tables to
ocaml, so your example above re-written as below should now work.
--8---cut here---start-8---
#+tblname: example-table
| 1 |
| 2 |
| 3 |
| 4 |
#+source: ocaml-length
#+begin_src ocaml :var table=example-table
Array.length table;;
#+end_src
#+results: ocaml-length
: 4
--8---cut here---end---8---
(I'd love to work on fixing up the OCaml interface, if that's needed.)
I'd love to have your help! The relevant code is located in
org/lisp/ob-ocaml.el, you can see in the most recent commit the changes
that I've just made for integrating table handling into this file.
You'll notice by comparing ob-ocaml to some of the more mature code
files like ob-R, ob-python, ob-ruby that there are many areas in which
ob-ocaml could grow in functionality.
Cheers -- Eric
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