Re: [PATCH] org-preview-latex-fragment not working with #+latex_header:\input{}

[Vladimir Lomov <lomov.vl@gmail.com>]

Hello,
** Benjamin Motz [2012-04-20 19:28:43 +0200]:

> Bug:

> #+latex_header:\input{commands.tex} is not considered in
> org-preview-latex-fragment. Reason: the fragment is generated in /tmp
> from where the file commands.tex can not be found. In my case,
> commands.tex contains essential latex-code for displaying the
> latex-fragment, so I consider this to be a bug.

IMHO, you doing it in wrong way, I presume you are using some Linux:
create ~/texmf/tex/latex/ben
and put there your `commands.tex', then `\input{commands.tex}' will pick
up that file.

Of course it is true for LaTeX, if you use plain TeX use
`~/texmf/tex/plain/ben' directorythen.

> I have set the environment variable TEXINPUTS in
> (org-create-formula-image) to work around this bug (see patch). 

Don't do it. If it is Ok to use in isolated environment and only once
the TEXINPUTS variable it is bad practice.

> However, this is the first time that I have written something like a
> patch and furthermore I'm not at all familiar with lisp-programming. So
> could you please have a look at my solution and tell me if it's complete
> crap and how it could be done better?!

> If it's no crap, I presume it should be submitted.

> Thank you, Benjamin


> diff --git a/org.el b/org.el.orig
> index 4f5bef0..b1c15fb 100644
> --- a/org.el
> +++ b/org.el.orig
> @@ -17040,7 +17040,6 @@ inspection."
>        (condition-case nil
>  	  (progn
>  	    (cd tmpdir)
> -	    (setenv "TEXINPUTS" concat(default-directory ":.:"))
>  	    (call-process "latex" nil nil nil texfile))
>  	(error nil))
>        (cd dir))


P.S. I'm using org with latex math code and all works fine (I'm using very
customized setup but it works very well).

---
WBR, Vladimir Lomov

-- 
I knew her before she was a virgin.
		-- Oscar Levant, on Doris Day