[PATCH 1/3] RefTeX: Basic Biblatex support.

["Rüdiger Sonderfeld" <ruediger@c-plusplus.de>]

Add support for Biblatex' \addbibresource[<options>]{<resouce>}.
There is probably more to do for full Biblatex support, such as
addglobalbib/addsectionbib support.

http://www.ctan.org/pkg/biblatex

* lisp/textmodes/reftex-parse.el (reftex-locate-bibliography-files):
  Accept options for bibliography commands.
* lisp/textmodes/reftex-vars.el (reftex-bibliography-commands): Add
  addbibresource.  Basic Biblatex support.

Signed-off-by: Rüdiger Sonderfeld <ruediger@c-plusplus.de>
---
 lisp/textmodes/reftex-parse.el | 4 ++--
 lisp/textmodes/reftex-vars.el  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/textmodes/reftex-parse.el b/lisp/textmodes/reftex-parse.el
index 6bfc70c..8d1b3f7 100644
--- a/lisp/textmodes/reftex-parse.el
+++ b/lisp/textmodes/reftex-parse.el
@@ -359,9 +359,9 @@ of master file."
 ;           "\\(\\`\\|[\n\r]\\)[^%]*\\\\\\("
             "\\(^\\)[^%\n\r]*\\\\\\("
             (mapconcat 'identity reftex-bibliography-commands "\\|")
-            "\\){[ \t]*\\([^}]+\\)") nil t)
+            "\\)\\(\\[.+?\\]\\)?{[ \t]*\\([^}]+\\)") nil t)
           (setq files
-                (split-string (reftex-match-string 3)
+                (split-string (reftex-match-string 4)
                               "[ \t\n\r]*,[ \t\n\r]*")))))
   (when files
     (setq files
diff --git a/lisp/textmodes/reftex-vars.el b/lisp/textmodes/reftex-vars.el
index 47bec5e..3792ab4 100644
--- a/lisp/textmodes/reftex-vars.el
+++ b/lisp/textmodes/reftex-vars.el
@@ -1112,7 +1112,7 @@ buffer."
   :group 'reftex)
 
 (defcustom reftex-bibliography-commands
-  '("bibliography" "nobibliography" "setupbibtex\\[.*?database=")
+  '("bibliography" "nobibliography" "setupbibtex\\[.*?database=" "addbibresource")
   "LaTeX commands which specify the BibTeX databases to use with the document."
   :group 'reftex-citation-support
   :type '(repeat string))
-- 
1.8.2.3