From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Schulte Subject: Re: Bug: Babel: haskell code evaluation inconsistency [7.7 (release_7.7.160.g3e33)] Date: Tue, 23 Aug 2011 08:20:51 -0600 Message-ID: <87k4a4fazw.fsf@gmail.com> References: <20110819223851.GA3315@discus> <87aab2bp2m.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([140.186.70.92]:43077) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qvs8Q-0002jy-6l for emacs-orgmode@gnu.org; Tue, 23 Aug 2011 10:39:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qvs8O-0007WR-Sq for emacs-orgmode@gnu.org; Tue, 23 Aug 2011 10:39:22 -0400 Received: from mail-yw0-f41.google.com ([209.85.213.41]:57440) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qvs8O-0007WF-Mz for emacs-orgmode@gnu.org; Tue, 23 Aug 2011 10:39:20 -0400 Received: by ywm13 with SMTP id 13so147952ywm.0 for ; Tue, 23 Aug 2011 07:39:20 -0700 (PDT) List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-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: =?utf-8?Q?Andr=C3=A1s?= Major Cc: emacs-orgmode@gnu.org Andr=C3=A1s Major writes: > Hi Eric, > >> I personally don't have time to make these changes right now, but I'd be >> happy to provide guidance and answer questions to anyone who wanted to >> try to submit a patch. Also, there are a number of files which can >> serve as examples of how to compile and execute code with Babel e.g., >> ob-java.el and ob-C.el. > > That's what I suspected judging from the behaviour I've seen. Is > anyone else interested in such work? I don't have much time either, > in particular I'm not sufficiently familiar with emacs and Lisp to do > something useful quickly. > >> I would prefer to keep haskell as the source block type if only so that >> the blocks are fontified with haskell-mode. However something like an >> :engine or :compiler keyword could be used to specify ghc or hugs. > > Good idea, but specifying ghc is ambiguous: it'll have to be either > ghci, runghc/runhaskell, oder hugs, or maybe some other > interpreter/compiler someone else would like to use (nhc98, etc., > there a quite a few). At least the three options I listed all have > incompatibilities in even the simplest use cases, owing to the > peculiarities of Haskell as a pure, declarative language. > A more open-ended :compiler or :interpreter header argument accepting ghc, rungch, hugs and nhc98 among others, sounds like a good idea. > > Also, using runghc would require the code block to be tangled first > into a temporary file. Is that easily done in babel? > Very easily, see ob-java.el. Adopting the compile-then-run functionality from there should not be a large task. Best -- Eric > > Andr=C3=A1s > > > --=20 Eric Schulte http://cs.unm.edu/~eschulte/