From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: Embedded LaTeX does not work with Unicode quotes
Date: Thu, 13 Nov 2014 19:24:49 +0100
Message-ID: <87wq6zot5a.fsf@nicolasgoaziou.fr>
References: <877fz1e7s5.fsf@wmi.amu.edu.pl>
	<87k331j6mr.fsf@pierrot.dokosmarshall.org>
	<87k3302o1w.fsf@sophokles.streitblatt.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
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]:57418)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <mail@nicolasgoaziou.fr>) id 1Xoz3v-0006PG-0V
	for emacs-orgmode@gnu.org; Thu, 13 Nov 2014 13:24:15 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <mail@nicolasgoaziou.fr>) id 1Xoz3m-0008Tb-Ia
	for emacs-orgmode@gnu.org; Thu, 13 Nov 2014 13:24:06 -0500
Received: from relay5-d.mail.gandi.net ([2001:4b98:c:538::197]:46774)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <mail@nicolasgoaziou.fr>) id 1Xoz3m-0008TT-Bo
	for emacs-orgmode@gnu.org; Thu, 13 Nov 2014 13:23:58 -0500
In-Reply-To: <87k3302o1w.fsf@sophokles.streitblatt.de> (Florian Beck's message
	of "Wed, 12 Nov 2014 20:53:31 +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: Florian Beck <fb@miszellen.de>
Cc: emacs-orgmode@gnu.org

Hello,

Florian Beck <fb@miszellen.de> writes:

> Nick Dokos <ndokos@gmail.com> writes:
>
>> "punctuation" in the syntax tables. Look for org-latex-regexps in
>> org.el
>
> The line in question is
>
> #+BEGIN_SRC emacs-lisp
> ("$" "\\([^$]\\|^\\)\\(\\(\\$\\([^ 	\r\n,;.$][^$\n\r]*?\\(\n[^$\n\r]*?\\)=
\\{0,2\\}[^ 	\r\n,.$]\\)\\$\\)\\)\\([- 	.,?;:'\")\000]\\|$\\)" 2 nil)
> #+END_SRC
>
> It's probably not too hard to see that the culprit is the bunch of
> punctuation characters towards the end. Indeed if you change .,?;:'\"
> to .,?;:'\"=E2=80=9D -- that solves the OPs problem. However, it might be=
 even
> better to use a more general syntax, [:punct:], which matches all
> punctuation (as we want). So:
>
> #+BEGIN_SRC emacs-lisp
> ("$" "\\([^$]\\|^\\)\\(\\(\\$\\([^ 	\r\n,;.$][^$\n\r]*?\\(\n[^$\n\r]*?\\)=
\\{0,2\\}[^ 	\r\n,.$]\\)\\$\\)\\)\\([- 	[:punct:]\000]\\|$\\)" 2 nil)
> #+END_SRC

Actually this variable is hardly used throughout Org code base. See
org-element-latex-fragment-parser instead (which has the same "problem"
anyway).

Also, according to Elisp manual; [:punct:] is not ideal either:

  `[:punct:]'
       This matches any punctuation character.  (At present, for multibyte
       characters, it matches anything that has non-word syntax.)

There is also "\s.".

Anyway, it might be better to know exactly what kind of false positives
we want to avoid.


Regards,

--=20
Nicolas Goaziou