Thanks Myles,
This is realy what I want. I have just to fix something (may be my
org-version).
The variable org-export-before-processing-hook seems missing.
I have org-version 7.8.10 (with emacs 24.2.1)
Regards,
Mohame

2012/12/20 Myles English <mylesenglish@gmail.com>

>
> mohamed writes:
>
> > Myles,
> > Thank you for this answer.
> > I tried it with
> > -------------------------------
> > (add-to-list 'org-export-preprocess-hook
> > 'my-export-delete-headlines-tagged-noheading)
> > -------------------------------
>
> Sorry, I should have said: add it to org-export-before-processing-hook,
> so you use it like this:
>
> #+begin_src emacs-lisp
> (defun my-export-delete-headlines-tagged-noheading (backend)
>   (dolist (hl (nreverse (org-element-map (org-element-parse-buffer
> 'headline)
>                                          'headline
>                                          'identity)))
>     (when (member "noheading" (org-element-property :tags hl))
>       (goto-char (org-element-property :begin hl))
>       (delete-region (point) (progn (forward-line) (point))))))
>
> (add-to-list 'org-export-before-processing-hook
>              'my-export-delete-headlines-tagged-noheading)
> #+end_src
>
> Myles
>
> >
> >
> > But I got some errors when exporting
> >
> > -----------------------------------------------------------------
> > Exporting to LaTeX...  run-hooks: Wrong number of
> > arguments: (lambda (backend) (dolist (hl (nreverse (org-element-map
> > (org-element-parse-buffer (quote headline)) (quote headline) (quote
> identity))))
> > (when (member "noheading" (org-element-property :tags hl)) (goto-char
> > (org-element-property :begin hl)) (delete-region (point) (progn
> (forward-line)
> > (point)))))), 0 (my-export-delete-headlines-tagged-noheading)
> > -----------------------------------------------------------------
> >
> >
> > I guess I have to use it in another way. My knowledge of lisp
> programming is
> > very limited.
> >
> > Regards,
> > Mohamed
>
>