[PATCH] Fix regexp error for protecting final } when exporting emphasis elements to latex

[Julien Barnier <julien@no-log.org>]

Hi,

I recntly noticed that in some specific cases, the final '}' was
esacped when exproting an emphasis element to LaTeX.

For example, the following element :

/éaa/

Is exported to :

\emph{éaa\}

This does not append if the string begins with a space or if it
is ASCII-only. For example, the followig strings are exported
correctly :

/aaa/
 /ééé/

I don't understand why the problem only occurs with non-ASCII chars,
but I think that the regexp to protect added special chars in the
org-export-latex-fontify function is missing a '?' in the
beginning. Tha attached patch corrects it.

Thanks for all,

Julien

---
 lisp/org-latex.el |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lisp/org-latex.el b/lisp/org-latex.el
index ce697a3..3d25139 100644
--- a/lisp/org-latex.el
+++ b/lisp/org-latex.el
@@ -1508,7 +1508,7 @@ The conversion is made depending of STRING-BEFORE and STRING-AFTER."
        (if (caddr emph)
            (setq rpl (org-export-latex-protect-string rpl))
          (save-match-data
-           (if (string-match "\\`.\\(\\\\[a-z]+{\\)\\(.*\\)\\(}\\).?\\'" rpl)
+           (if (string-match "\\`.?\\(\\\\[a-z]+{\\)\\(.*\\)\\(}\\).?\\'" rpl)
                (progn
                  (add-text-properties (match-beginning 1) (match-end 1)
                                       '(org-protected t) rpl)
-- 
1.6.5.3