shr.el (shr-tag-sup, shr-tag-sub): New functions.

lisp/gnus/ChangeLog

@@ -2,6 +2,11 @@
 	* gnus-sum.el (gnus-extra-headers): Bump :version.
+2011-04-24  Lars Magne Ingebrigtsen  <larsi@gnus.org>
+
+	* shr.el (shr-tag-sup): New function.
+	(shr-tag-sub): Ditto.
+
 2011-04-22  Teodor Zlatanov  <tzz@lifelogs.com>
 	* gnus-registry.el (gnus-registry-ignore-group-p): Test specifically

lisp/gnus/shr.el

@@ -734,6 +734,16 @@ ones, in case fg and bg are nil."
 (defun shr-tag-script (cont)
   )
 
+(defun shr-tag-sup (cont)
+  (let ((start (point)))
+    (shr-generic cont)
+    (put-text-property start (point) 'display '(raise 0.5))))
+
+(defun shr-tag-sub (cont)
+  (let ((start (point)))
+    (shr-generic cont)
+    (put-text-property start (point) 'display '(raise -0.5))))
+
 (defun shr-tag-label (cont)
   (shr-generic cont)
   (shr-ensure-paragraph))