[O] LaTeX export and org-add-link-type

[Serge Cohen]

Hello list,

When using hte org to LaTeX exporter, I would like to use the link-type 
capabilities described here :
http://orgmode.org/worg/org-contrib/babel/examples/article-class.html#sec-3

To follow the instruction, I have added the lines to my ~/.emacs.el

(org-add-link-type
 "ltx" nil
 (lambda (path desc format)
   (cond
    ((eq format 'html)
     (format "<span style=\"color:grey;\" class=\"%s\">%s</span>" path desc))
    ((eq format 'latex)
     (format "\\%s{%s}" path desc)))))

I have even added the following call just after that (but I have the feeling 
this is un-necessary, since should already be done within org-add-link-type 
function).

(org-make-link-regexps)

Then adding a [[ltx:foo][albert]] to an org file, and exporting to a HTML 
buffer, I get what I am expecting :
<span style="color:grey;" class="foo">bar</span>

But when I export to a LaTeX buffer, irrelevant to what I use as link/path I 
get :
\texttt{bar}

To me this means that the org-link-type mechanism is bypassed when exporting to 
LaTeX (indeed from org-latex.el , I have the feeling that the function 
org-export-latex-link is taking care of the link parsing, without carrign for 
the content of org-link-types nor org-link-types-re).

Is this normal, if so is there another way to obtain the same results as what 
is proposed in the documentation ?

To complete the post : I am using Aquamacs (MacOSX gui-version), based on GNU 
emacs 23.4.1
The included version of org.el is Version: 6.33x

Hoping someone will be able to point me to the right direction. Thanks in 
advance,

Serge.

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