From: Lixin Chin <lixinchin@gmail.com>
To: "Charles C. Berry" <ccberry@ucsd.edu>
Cc: emacs-orgmode@gnu.org
Subject: Re: Bug: Unable to nest headings within export blocks [9.0 (9.0-elpa @ c:/Data/Documents/emacs.d/elpa/org-20161102/)]
Date: Wed, 9 Nov 2016 12:51:24 +0800 [thread overview]
Message-ID: <20161109125040.00004325@gmail.com> (raw)
In-Reply-To: <alpine.OSX.2.20.1611070838490.675@charles-berrys-macbook.local>
On Mon, 7 Nov 2016 08:44:47 -0800
"Charles C. Berry" <ccberry@ucsd.edu> wrote:
> Run this:
>
> #+BEGIN_SRC emacs-lisp :eval never-export :exports none
> (require 'ob-org)
> (defun eval-if-html ()
> (if (not (eq org-export-current-backend 'html)) "never"))
> #+END_SRC
>
>
> Then export this with the html backend:
>
> #+OPTIONS: toc:nil
>
> #+BEGIN_SRC org :eval (eval-if-html) :exports results :results replace
> ,* HTML only heading
> Text which should appear in HTML exports, but not \LaTeX{}.
> #+END_SRC
>
> and you will get this:
>
> <div id="outline-container-org1e9ad24" class="outline-2">
> <h2 id="org1e9ad24"><span class="section-number-2">1</span> HTML only
> heading</h2>
> <div class="outline-text-2" id="text-1">
> <p>
> Text which should appear in HTML exports, but not \LaTeX{}.
> </p>
> </div>
> </div>
>
> With other backends you get nothing.
>
> HTH,
>
> Chuck
Thank you very much, that works perfectly!
For future reference, I tweaked the source code block to allow
specifying multiple export backends, and to avoid generating results
when evaluating using C-c C-c:
#+BEGIN_SRC emacs-lisp :eval never-export :exports none :results silent
(require 'cl-extra)
(defun eval-if-export (backend)
"For use within org-mode source blocks :eval argument. Causes
the block to be evaluated if the current export backend matches
any of the backends in BACKEND. (e.g., (eval-if-export '(latex
html)))."
(unless (cl-some (lambda (back) (eq org-export-current-backend
back))
backend)
"never"))
#+END_SRC
Then using:
#+BEGIN_SRC org :eval (eval-if-export '(html)) :exports
results :results replace
,* HTML only heading
Text which should appear in HTML exports, but not \LaTeX{}.
#+END_SRC
The syntax isn't as elegant as #+BEGIN_EXPORT <backend> ...
#+END_EXPORT, but it works nicely enough.
Thanks,
Lixin
prev parent reply other threads:[~2016-11-09 4:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-03 3:47 Bug: Unable to nest headings within export blocks [9.0 (9.0-elpa @ c:/Data/Documents/emacs.d/elpa/org-20161102/)] Lixin Chin
2016-11-03 5:20 ` Lixin Chin
2016-11-05 7:41 ` Nicolas Goaziou
2016-11-07 2:47 ` Lixin Chin
2016-11-07 16:44 ` Charles C. Berry
2016-11-09 4:51 ` Lixin Chin [this message]
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