From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Lawrence <richard.lawrence@berkeley.edu>
Subject: Re: problem with ox-pandoc export
Date: Fri, 03 Jul 2015 09:37:38 -0700
Message-ID: <87si95tcx9.fsf@berkeley.edu>
References: <m2mvzmk4lc.fsf@charm-ecran.irisa.fr>
	<87a8vmv5vq.fsf@nicolasgoaziou.fr>
	<m2h9ptihwf.fsf@charm-ecran.irisa.fr>
	<m2d20hihby.fsf@charm-ecran.irisa.fr>
	<87pp4htpk1.fsf@nicolasgoaziou.fr>
	<m2bnfyhmdo.fsf@charm-ecran.irisa.fr>
	<878ub2k8pq.fsf@nicolasgoaziou.fr>
	<m28ub2lgbj.fsf@charm-ecran.irisa.fr>
	<874mlqjqfk.fsf@nicolasgoaziou.fr>
	<m2zj3hk5yg.fsf@charm-ecran.irisa.fr>
	<87mvzg827w.fsf@nicolasgoaziou.fr> <86k2uioquy.fsf@example.com>
	<87ioa2n68f.fsf@nicolasgoaziou.fr> <877fqisr7f.fsf@gmx.us>
	<87bnfuutyv.fsf@nicolasgoaziou.fr> <874mlm42ft.fsf@gmx.us>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:44996)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1ZB3yU-0003zu-3H
	for emacs-orgmode@gnu.org; Fri, 03 Jul 2015 12:38:02 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1ZB3yP-0003fk-Uy
	for emacs-orgmode@gnu.org; Fri, 03 Jul 2015 12:38:02 -0400
Received: from plane.gmane.org ([80.91.229.3]:37555)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1ZB3yP-0003es-OI
	for emacs-orgmode@gnu.org; Fri, 03 Jul 2015 12:37:57 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1ZB3yO-00059m-GD
	for emacs-orgmode@gnu.org; Fri, 03 Jul 2015 18:37:56 +0200
Received: from c-67-169-117-151.hsd1.ca.comcast.net ([67.169.117.151])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Fri, 03 Jul 2015 18:37:56 +0200
Received: from richard.lawrence by c-67-169-117-151.hsd1.ca.comcast.net with
	local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Fri, 03 Jul 2015 18:37:56 +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: emacs-orgmode@gnu.org

Rasmus <rasmus@gmx.us> writes:

> I don't see it as reinventing the wheel.  One example, does pandoc have
> something like the ox filters?

It does; see e.g. http://pandoc.org/scripting.html

Pandoc filters are actually more powerful than Org filters in most
cases, because they are AST transformations.  Pattern matching makes it
convenient and practical in Haskell to just transform the part of the
tree you're interested in.  And because the Pandoc data structure has a
JSON serialization format, filters can be written in just about any
language, not just Haskell.

This is an nice system, IMHO, which has one big advantage: it is
possible to write complex filters (i.e., those that do more than just
simple string manipulation) in an output-agnostic way.  Pandoc filters
can do things which are generally only possible or convenient to do in
Org by creating a derived backend, which isn't output-agnostic.

Best,
Richard