> On Aug 2, 2017, at 4:22 PM, Jeremie Juste <jeremieju...@gmail.com> wrote:
>
>
>
> Hello
>
>>
>> Putting together a macro seems like the best option. Recall that you
>> can use elisp in macros by placing it between `(eval’ and `)', so the
>> following emits “def’ in all but latex exports and “abc” for latex.
>>
>
>
> Yes I found this nice piece of code
>
> It switches to svg if backend is html and to raw latex if backend is
> latex. You only have to tweak it your needs.
>
I think this is obsolete. It fails on org-9.0.9. What version of org are you
using?
In any case replacing the ~(if ...)~ by ~org-export-current-backend~ will fix
it.
> #+header: :file (by-backend (html "tree.svg") (t 'nil))
> #+header: :imagemagick
> #+header: :results (by-backend (pdf "latex") (t "raw"))
> #+begin_src latex
> \usetikzlibrary{trees}
> \begin{tikzpicture}
> \node [circle, draw, fill=red!20] at (0,0) {1}
> child { node [circle, draw, fill=blue!30] {2}
> child { node [circle, draw, fill=green!30] {3} }
> child { node [circle, draw, fill=yellow!30] {4} }};
> \end{tikzpicture}
> #+end_src
>
> * COMMENT setup
> #+begin_src emacs-lisp :results silent
> (setq org-babel-latex-htlatex "htlatex")
> (defmacro by-backend (&rest body)
> `(case (if (boundp 'backend) (org-export-backend-name backend) nil)
> ,@body))
> #+end_src
>
> The reference
> http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-LaTeX.html
>
Another case were adding dates to Worg entries might help.
Chuck
