Consider the following
--8<---------------cut here---------------start------------->8---
#+BEGIN_SRC elisp
(require 'package)
(setq package-archives '(("ELPA" . "http://tromey.com/elpa/";)
("melpa" . "http://melpa.milkbox.net/packages/";)
("gnu" . "http://elpa.gnu.org/packages/";)
("org" . "http://orgmode.org/elpa/";)
("marmalade" . "http://marmalade-repo.org/packages/";)
))
(package-initialize)
(require 'org-ref)
(defun org-repair-export-blocks ()
"Repair export blocks and INCLUDE keywords in current buffer."
(interactive)
(when (eq major-mode 'org-mode)
(let ((case-fold-search t)
(back-end-re (regexp-opt
'("HTML" "ASCII" "LATEX" "ODT" "MARKDOWN" "MD" "ORG"
"MAN" "BEAMER" "TEXINFO" "GROFF" "KOMA-LETTER")
t)))
(org-with-wide-buffer
(goto-char (point-min))
(let ((block-re (concat "^[ \t]*#\\+BEGIN_" back-end-re)))
(save-excursion
(while (re-search-forward block-re nil t)
(let ((element (save-match-data (org-element-at-point))))
(when (eq (org-element-type element) 'special-block)
(save-excursion
(goto-char (org-element-property :end element))
(save-match-data (search-backward "_"))
(forward-char)
(insert "EXPORT")
(delete-region (point) (line-end-position)))
(replace-match "EXPORT \\1" nil nil nil 1))))))
(let ((include-re
(format "^[ \t]*#\\+INCLUDE: .*?%s[ \t]*$" back-end-re)))
(while (re-search-forward include-re nil t)
(let ((element (save-match-data (org-element-at-point))))
(when (and (eq (org-element-type element) 'keyword)
(string= (org-element-property :key element)
"INCLUDE"))
(replace-match "EXPORT \\1" nil nil nil 1)))))))))
#+END_SRC
#+RESULTS:
: org-repair-export-blocks
#+BEGIN_LATEX
\begin{equation*}
P_{ext} = P_0
\end{equation*}
#+END_LATEX
--8<---------------cut here---------------end--------------->8---
After evaluating the elisp source block, org-repair-export-blocks
doesn't repair the LATEX block. However, (require 'org-ref) is commented
out, org-repair-export-blocks does its job.
Julien.
