From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nick Dokos Subject: Re: Strange latex symbol behavior on html export Date: Wed, 13 Sep 2017 23:37:16 -0400 Message-ID: <87lgli0x3n.fsf@alphaville.usersys.redhat.com> References: <877ex2px4t.fsf@nicolasgoaziou.fr> <87poau1a5l.fsf@alphaville.usersys.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:57701) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dsKy4-000318-13 for emacs-orgmode@gnu.org; Wed, 13 Sep 2017 23:37:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dsKy0-0003Nq-Oh for emacs-orgmode@gnu.org; Wed, 13 Sep 2017 23:37:32 -0400 Received: from [195.159.176.226] (port=47017 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dsKy0-0003L7-Hn for emacs-orgmode@gnu.org; Wed, 13 Sep 2017 23:37:28 -0400 Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1dsKxn-00065f-7S for emacs-orgmode@gnu.org; Thu, 14 Sep 2017 05:37:15 +0200 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" To: emacs-orgmode@gnu.org Lawrence Bottorff writes: > ... I use > > # this makes MathJax work > #+OPTIONS: tex:t > > I just now found this caption weirdness because I started a new .org > file with no latex symbol markup besides in the caption. Quite > bizarre that when my file sees other latex symbols, the caption > symbols then render correctly.  > > On Wed, Sep 13, 2017 at 6:55 PM, Nick Dokos wrote: > > Nicolas Goaziou writes: > > > Hello, > > > > Lawrence Bottorff writes: > > > >> Consider this markup: > >> > >> ------------ > >> * MATHEMATICS AUXILIARY > >> > >> ** deriving sines and cosines > >> > >> #+caption: Right triangle with two $\pi\big/4$ angles. > >> [[file:images/45-45-triangle.png]] > >> > >> $\big/$ > >> ------------ > >> > >> If I remove the second $\big/$, the first latex, $\pi\big/4$, in the > >> caption will not properly render on export to html. Include it and both > >> render just fine. Without the second, the first looks like this: > >> > >> Figure 1: Right triangle with two \(\pi\big/4\) angles. > >> > >> Is this a bug? > > > > If you use > > > >   #+options: tex:dvipng > > > > the symbol in the caption is correctly rendered. It may be a bug in Mathjax. > > > > I looked at the diff between html files produced with and without the $\big/$ addition. > The one without does not include any of the mathjax configuration code at all. Is that > code included conditionally perhaps when a latex construct is seen? Maybe the latex construct > in the caption does not trigger the inclusion? > > -- > Nick > org-html--build-mathjax-config includes the mathjax code only if (and (memq (plist-get info :with-latex) '(mathjax t)) (org-element-map (plist-get info :parse-tree) '(latex-fragment latex-environment) 'identity info t)) is true. So if there is latex markup in the file (other than the caption) the org-element-map call finds it and returns non-nil, but it apparently does not look inside the caption. -- Nick