Merge changes in Emacs21.

[gnus] / lisp / nnoo.el

diff --git a/lisp/nnoo.el b/lisp/nnoo.el
index 9c27786..ec24a28 100644 (file)
--- a/lisp/nnoo.el
+++ b/lisp/nnoo.el
@@ -1,5 +1,7 @@
 ;;; nnoo.el --- OO Gnus Backends
-;; Copyright (C) 1996,97,98 Free Software Foundation, Inc.
+
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;;     Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
@@ -105,11 +107,11 @@
                        (cdr (assq pbackend (nnoo-parents backend))))
     (prog1
        (apply function args)
-    ;; Copy the changed variables back into the child.
-    (let ((vars (cdr (assq pbackend (nnoo-parents backend)))))
-      (while vars
-       (set (cadar vars) (symbol-value (caar vars)))
-       (setq vars (cdr vars)))))))
+      ;; Copy the changed variables back into the child.
+      (let ((vars (cdr (assq pbackend (nnoo-parents backend)))))
+       (while vars
+         (set (cadar vars) (symbol-value (caar vars)))
+         (setq vars (cdr vars)))))))
 
 (defun nnoo-execute (backend function &rest args)
   "Execute FUNCTION on behalf of BACKEND."
@@ -302,6 +304,20 @@ All functions will return nil and report an error."
                   (&rest args)
                 (nnheader-report ',backend ,(format "%s-%s not implemented"
                                                     backend function))))))))
+
+(defun nnoo-set (server &rest args)
+  (let ((parents (nnoo-parents (car server)))
+       (nnoo-parent-backend (car server)))
+    (while parents
+      (nnoo-change-server (caar parents)
+                         (cadr server)
+                         (cdar parents))
+      (pop parents)))
+  (nnoo-change-server (car server)
+                     (cadr server) (cddr server))
+  (while args
+    (set (pop args) (pop args))))
+
 (provide 'nnoo)
 
 ;;; nnoo.el ends here.