From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Harkins <jamshark70@gmail.com>
Subject: sa-ignore-headline for HTML export
Date: Wed, 08 Jan 2014 09:29:25 +0800
Message-ID: <655e7cf5-021a-413d-9485-5f7e48bb05ba@dewdrop-world.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: quoted-printable
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:50288)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <jamshark70@gmail.com>) id 1W0hxm-0000zs-Us
	for emacs-orgmode@gnu.org; Tue, 07 Jan 2014 20:29:48 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <jamshark70@gmail.com>) id 1W0hxh-0006me-45
	for emacs-orgmode@gnu.org; Tue, 07 Jan 2014 20:29:42 -0500
Received: from mail-pb0-x234.google.com ([2607:f8b0:400e:c01::234]:58782)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <jamshark70@gmail.com>) id 1W0hxg-0006mT-T5
	for emacs-orgmode@gnu.org; Tue, 07 Jan 2014 20:29:37 -0500
Received: by mail-pb0-f52.google.com with SMTP id uo5so886503pbc.39
	for <emacs-orgmode@gnu.org>; Tue, 07 Jan 2014 17:29:35 -0800 (PST)
Received: from localhost ([219.136.3.109]) by mx.google.com with ESMTPSA id
	ka3sm139024410pbc.32.2014.01.07.17.29.33 for <emacs-orgmode@gnu.org>
	(version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
	Tue, 07 Jan 2014 17:29:34 -0800 (PST)
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: orgmode <emacs-orgmode@gnu.org>

Hi Suvayu,

I've been using your "sa-ignore-headline" filter [1] for a while -- works=20
great for LaTeX.

(defun sa-ignore-headline (contents backend info)
  "Ignore headlines with tag `ignoreheading'."
  (when (and (org-export-derived-backend-p backend 'latex 'html 'ascii)
          (string-match "\\`.*ignoreheading.*\n"
                (downcase contents)))
    (replace-match "" nil nil contents)))

Unfortunately, although this is supposed to apply to latex, html and ascii=20=

backends, the string-match works only for LaTeX. I was just trying it with=20=

HTML and there was no effect.

For HTML export, the "contents" end up looking like this:

<div id=3D"outline-container-sec-2" class=3D"outline-2">
<h2 id=3D"sec-2"><span class=3D"section-number-2">2</span>=20
B&#xa0;&#xa0;&#xa0;<span class=3D"tag"><span=20
class=3D"ignoreheading">ignoreheading</span></span></h2>
<div class=3D"outline-text-2" id=3D"text-2">
<p>
Text B
</p>
</div>
</div>

.. where there is no backquote to match.

So I've changed the string-match predicate to read as follows (also=20
removing the downcase), and it now works with HTML export.

(string-match ".*ignoreheading.*" contents)

That's a hack -- sufficient for now, but ideally I suppose it should=20
dispatch to a different predicate per backend.

Posting here because I didn't see a way on stackexchange to comment on your=20=

answer.

Thanks for the function! It would have taken me ages to figure it out on my=20=

own.
hjh

[1]=20
http://stackoverflow.com/questions/10295177/is-there-an-equivalent-of-org-mod=
es-b-ignoreheading-for-non-beamer-documents