From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: [Exporter] How to extract timestamp from headline's title?
Date: Fri, 15 Nov 2013 22:58:05 +0100
Message-ID: <87iovtjpjm.fsf@gmail.com>
References: <87li0pqt3y.fsf@gmail.com>
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 ([2001:4830:134:3::10]:36308)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <n.goaziou@gmail.com>) id 1VhROm-0003QL-GN
	for emacs-orgmode@gnu.org; Fri, 15 Nov 2013 16:58:05 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <n.goaziou@gmail.com>) id 1VhROd-0002Ew-EB
	for emacs-orgmode@gnu.org; Fri, 15 Nov 2013 16:57:56 -0500
Received: from mail-ea0-x235.google.com ([2a00:1450:4013:c01::235]:35085)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <n.goaziou@gmail.com>) id 1VhROd-0002Eo-8B
	for emacs-orgmode@gnu.org; Fri, 15 Nov 2013 16:57:47 -0500
Received: by mail-ea0-f181.google.com with SMTP id q16so1279667ead.12
	for <emacs-orgmode@gnu.org>; Fri, 15 Nov 2013 13:57:46 -0800 (PST)
In-Reply-To: <87li0pqt3y.fsf@gmail.com> (Thorsten Jolitz's message of "Fri, 15
	Nov 2013 21:59:13 +0100")
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: Thorsten Jolitz <tjolitz@gmail.com>
Cc: emacs-orgmode@gnu.org

Hello,

Thorsten Jolitz <tjolitz@gmail.com> writes:

> when writing an exporter backend, I wonder what is the canonical way to
> extract the (optional) timestamp element from a headline's :title
> attribute (which holds a secondary string)?
>
> I could do something like this to extract the timestamp from the headline
>
> #+begin_src emacs-lisp
>   (let ((ttl (org-element-property :title headline)))
>     (and (> (length ttl) 1)
>          (car (last ttl))))
> #+end_src
>
> but I hope there is a more straight-forward and reliable way to do
> this?

You can map over a secondary string. E.g.:

 (org-element-map (org-element-property :title headline) 'timestamp
 'identity)


Regards,

-- 
Nicolas Goaziou