(customize-group-other-window): Handle groups not

yet loaded.  If buffer exists, use it unchanged.  Rename parameter
and update doc string.

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index b9d34f3944e4f23c80fb4b218fbebcd9c501ff88..444ab4524b68570b565abfc5f9f1ef9ac670c6c0 100644 (file)
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -828,21 +828,32 @@ are shown; the contents of those subgroups are initially hidden."
                                    (custom-unlispify-tag-name group))))))
 
 ;;;###autoload
-(defun customize-group-other-window (symbol)
-  "Customize SYMBOL, which must be a customization group."
-  (interactive (list (completing-read "Customize group: (default emacs) "
-                                     obarray 
-                                     (lambda (symbol)
-                                       (get symbol 'custom-group))
-                                     t)))
-
-  (when (stringp symbol)
-    (if (string-equal "" symbol)
-       (setq symbol 'emacs)
-      (setq symbol (intern symbol))))
-  (custom-buffer-create-other-window
-   (list (list symbol 'custom-group))
-   (format "*Customize Group: %s*" (custom-unlispify-tag-name symbol))))
+(defun customize-group-other-window (group)
+  "Customize GROUP, which must be a customization group."
+  (interactive (list (let ((completion-ignore-case t))
+                      (completing-read "Customize group: (default emacs) "
+                                       obarray 
+                                       (lambda (symbol)
+                                         (or (get symbol 'custom-loads)
+                                             (get symbol 'custom-group)))
+                                       t))))
+  (when (stringp group)
+    (if (string-equal "" group)
+       (setq group 'emacs)
+      (setq group (intern group))))
+  (or (get group 'custom-group)
+      (custom-load-symbol group))
+  (let ((name (format "*Customize Group: %s*"
+                     (custom-unlispify-tag-name group))))
+    (if (get-buffer name)
+       (let ((window (selected-window)))
+         (switch-to-buffer-other-window name)
+         (select-window window))
+      (custom-buffer-create-other-window
+       (list (list group 'custom-group))
+       name
+       (concat " for group "
+              (custom-unlispify-tag-name group))))))
 
 ;;;###autoload
 (defalias 'customize-variable 'customize-option)