From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gareth Smith <gds@doc.ic.ac.uk>
Subject: Re: How to ensure code blocks are run during export?
Date: Mon, 06 May 2013 16:18:08 +0100
Message-ID: <87a9o82l3j.fsf@doc.ic.ac.uk>
References: <m2fvy56zw0.fsf@polytechnique.org> <86bo8sbggr.fsf@somewhere.org>
	<m2zjwcgzct.fsf@polytechnique.org> <86txmk9uv6.fsf@somewhere.org>
	<m2ip30z2bf.fsf@polytechnique.org> <86k3ng9qad.fsf@somewhere.org>
	<m2haikyzvx.fsf@polytechnique.org>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([208.118.235.92]:32968)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <gds@doc.ic.ac.uk>) id 1UZNBA-0008JC-F0
	for emacs-orgmode@gnu.org; Mon, 06 May 2013 11:18:19 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <gds@doc.ic.ac.uk>) id 1UZNB7-0007Xv-NE
	for emacs-orgmode@gnu.org; Mon, 06 May 2013 11:18:16 -0400
Received: from smtp2.cc.ic.ac.uk ([155.198.5.156]:59469)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <gds@doc.ic.ac.uk>) id 1UZNB7-0007Xh-H7
	for emacs-orgmode@gnu.org; Mon, 06 May 2013 11:18:13 -0400
In-Reply-To: <m2haikyzvx.fsf@polytechnique.org> (Alan Schmitt's message of
	"Fri, 03 May 2013 15:08:34 +0200")
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: Alan Schmitt <alan.schmitt@polytechnique.org>
Cc: Sebastien Vauban <sva-news@mygooglest.com>, emacs-orgmode@gnu.org


Alan Schmitt <alan.schmitt@polytechnique.org> writes:
> Hi Sebastien,
>
> Sebastien Vauban writes:
>
>> I don't know OCaml at all, so I cannot try your example locally on my
>> machine.
>
> And I don't know about other languages that support sessions,
> unfortunately.

I can see something similar using haskell, if that helps:

--8<---------------cut here---------------start------------->8---
# -*- org-confirm-babel-evaluate: nil -*-

Setting the stage

#+BEGIN_SRC haskell :results code verbatim :exports results
let f = (+1)
f 1
#+END_SRC

Using the function

#+BEGIN_SRC haskell :results code verbatim :exports results
f 3
#+END_SRC

Setting another stage

#+BEGIN_SRC haskell :results silent :exports none
let g = (+1)
g 1
#+END_SRC

Using the second function

#+BEGIN_SRC haskell :results code verbatim :exports results
g 3
#+END_SRC
--8<---------------cut here---------------end--------------->8---

>> Though, you speak of "session": where is your session header argument?  Isn't
>> that the problem?
>
> There is a default session for Caml code, so one does not need this
> argument.

In my example, the function f is declared in one block and successfully
used in the second. The function g is declared in a third (silent)
block, and results in an error when we try to call it in the fourth and
final block. Does this demonstrate the default "session" that Alan
mentioned?

G