From 82f1cecaf5c011506c6cc57cb3835b6f8eba0f6d Mon Sep 17 00:00:00 2001
From: "Pedro A. Aranda" <paaguti@gmail.com>
Date: Wed, 17 Apr 2024 08:19:22 +0200
Subject: [PATCH 1/2] Allow explicit style= in cite_export options

lisp/oc-biblatex.el: Allow explicit style= in biblatex cite-export
doc/org-manual.org: Clarify documentation regarding biblatex cite-export

---
 doc/org-manual.org  | 10 +++++++++-
 lisp/oc-biblatex.el | 31 +++++++++++++++++--------------
 2 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/doc/org-manual.org b/doc/org-manual.org
index 6c699ae1e..2de5df3af 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -17614,7 +17614,15 @@ style and the =bibtex= backend. Always define the style first and then
 the rest of load-time options for the =biblatex=
 package. Alternatively, use the ~org-cite-biblatex-options~ variable
 in your Emacs configuration. It will only export to PDF, since it
-relies on the ~biblatex~ processor of your LaTeX installation;
+relies on the ~biblatex~ processor of your LaTeX installation.
+
+The previous example assumes the first element in the options is a
+style.  Alternatively you can specify ~style=~ explicitly anywhere in
+the options string (as you would when setting the
+~org-cite-biblatex-options~ variable in your Emacs configuration):
+
+: #+cite_export: biblatex backend=bibtex,style=numeric
+

 ** Bibliography printing

diff --git a/lisp/oc-biblatex.el b/lisp/oc-biblatex.el
index 36c0ee7e5..13e160ac1 100644
--- a/lisp/oc-biblatex.el
+++ b/lisp/oc-biblatex.el
@@ -190,20 +190,23 @@ INITIAL is an initial style of comma-separated options, as a string or nil.
 STYLE is the style definition as a string or nil.

 Return a string."
-  (let ((options-no-style
-         (and initial
-              (let ((re (rx string-start (or "bibstyle" "citestyle" "style"))))
-                (seq-filter
-                 (lambda (option) (not (string-match re option)))
-                 (split-string (org-unbracket-string "[" "]" initial)
-                               "," t " \t")))))
-        (style-options
-         (cond
-          ((null style) nil)
-          ((not (string-match "/" style)) (list (concat "style=" style)))
-          (t
-           (list (concat "bibstyle=" (substring style nil (match-beginning 0)))
-                 (concat "citestyle=" (substring style (match-end 0))))))))
+  (let* ((options-no-style
+          (and initial
+               (let ((re (rx string-start (or "bibstyle" "citestyle" "style"))))
+                 (seq-filter
+                  (lambda (option) (not (string-match re option)))
+                  (split-string (org-unbracket-string "[" "]" initial)
+                                "," t " \t")))))
+         ;; Did we state the style as style= in the options?
+         (explicit-style (string-match-p "\\(\\`s\\|,s\\)tyle=" style))
+         (style-options
+          (cond
+           ((null style) nil)
+           ;; prepend style= if not already in options
+           ((not (string-match "/" style)) (list (if explicit-style style (concat "style=" style))))
+           (t
+            (list (concat "bibstyle=" (substring style nil (match-beginning 0)))
+                  (concat "citestyle=" (substring style (match-end 0))))))))
     (if (or options-no-style style-options)
         (format "[%s]"
                 (mapconcat #'identity
--
2.34.1