[Emacs-diffs] Changes to emacs/lisp/gnus/gnus-srvr.el [gnus-5_10-branch]

[Andreas Schwab]

Index: emacs/lisp/gnus/gnus-srvr.el
diff -c /dev/null emacs/lisp/gnus/gnus-srvr.el:1.12.2.1
*** /dev/null   Thu Jul 22 16:46:30 2004
--- emacs/lisp/gnus/gnus-srvr.el        Thu Jul 22 16:45:48 2004
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*** 0 ****
--- 1,987 ----
+ ;;; gnus-srvr.el --- virtual server support for Gnus
+ ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+ ;;        Free Software Foundation, Inc.
+ 
+ ;; Author: Lars Magne Ingebrigtsen <address@hidden>
+ ;; Keywords: news
+ 
+ ;; This file is part of GNU Emacs.
+ 
+ ;; GNU Emacs is free software; you can redistribute it and/or modify
+ ;; it under the terms of the GNU General Public License as published by
+ ;; the Free Software Foundation; either version 2, or (at your option)
+ ;; any later version.
+ 
+ ;; GNU Emacs is distributed in the hope that it will be useful,
+ ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+ ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ ;; GNU General Public License for more details.
+ 
+ ;; You should have received a copy of the GNU General Public License
+ ;; along with GNU Emacs; see the file COPYING.  If not, write to the
+ ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ ;; Boston, MA 02111-1307, USA.
+ 
+ ;;; Commentary:
+ 
+ ;;; Code:
+ 
+ (eval-when-compile (require 'cl))
+ 
+ (require 'gnus)
+ (require 'gnus-spec)
+ (require 'gnus-group)
+ (require 'gnus-int)
+ (require 'gnus-range)
+ 
+ (defcustom gnus-server-mode-hook nil
+   "Hook run in `gnus-server-mode' buffers."
+   :group 'gnus-server
+   :type 'hook)
+ 
+ (defcustom gnus-server-exit-hook nil
+   "Hook run when exiting the server buffer."
+   :group 'gnus-server
+   :type 'hook)
+ 
+ (defcustom gnus-server-line-format "     {%(%h:%w%)} %s%a\n"
+   "Format of server lines.
+ It works along the same lines as a normal formatting string,
+ with some simple extensions.
+ 
+ The following specs are understood:
+ 
+ %h backend
+ %n name
+ %w address
+ %s status
+ %a agent covered
+ 
+ General format specifiers can also be used.
+ See Info node `(gnus)Formatting Variables'."
+   :link '(custom-manual "(gnus)Formatting Variables")
+   :group 'gnus-server-visual
+   :type 'string)
+ 
+ (defcustom gnus-server-mode-line-format "Gnus: %%b"
+   "The format specification for the server mode line."
+   :group 'gnus-server-visual
+   :type 'string)
+ 
+ (defcustom gnus-server-browse-in-group-buffer nil
+   "Whether server browsing should take place in the group buffer.
+ If nil, a faster, but more primitive, buffer is used instead."
+   :group 'gnus-server-visual
+   :type 'boolean)
+ 
+ ;;; Internal variables.
+ 
+ (defvar gnus-inserted-opened-servers nil)
+ 
+ (defvar gnus-server-line-format-alist
+   `((?h gnus-tmp-how ?s)
+     (?n gnus-tmp-name ?s)
+     (?w gnus-tmp-where ?s)
+     (?s gnus-tmp-status ?s)
+     (?a gnus-tmp-agent ?s)))
+ 
+ (defvar gnus-server-mode-line-format-alist
+   `((?S gnus-tmp-news-server ?s)
+     (?M gnus-tmp-news-method ?s)
+     (?u gnus-tmp-user-defined ?s)))
+ 
+ (defvar gnus-server-line-format-spec nil)
+ (defvar gnus-server-mode-line-format-spec nil)
+ (defvar gnus-server-killed-servers nil)
+ 
+ (defvar gnus-server-mode-map)
+ 
+ (defvar gnus-server-menu-hook nil
+   "*Hook run after the creation of the server mode menu.")
+ 
+ (defun gnus-server-make-menu-bar ()
+   (gnus-turn-off-edit-menu 'server)
+   (unless (boundp 'gnus-server-server-menu)
+     (easy-menu-define
+      gnus-server-server-menu gnus-server-mode-map ""
+      '("Server"
+        ["Add..." gnus-server-add-server t]
+        ["Browse" gnus-server-read-server t]
+        ["Scan" gnus-server-scan-server t]
+        ["List" gnus-server-list-servers t]
+        ["Kill" gnus-server-kill-server t]
+        ["Yank" gnus-server-yank-server t]
+        ["Copy" gnus-server-copy-server t]
+        ["Edit" gnus-server-edit-server t]
+        ["Regenerate" gnus-server-regenerate-server t]
+        ["Exit" gnus-server-exit t]))
+ 
+     (easy-menu-define
+      gnus-server-connections-menu gnus-server-mode-map ""
+      '("Connections"
+        ["Open" gnus-server-open-server t]
+        ["Close" gnus-server-close-server t]
+        ["Offline" gnus-server-offline-server t]
+        ["Deny" gnus-server-deny-server t]
+        "---"
+        ["Open All" gnus-server-open-all-servers t]
+        ["Close All" gnus-server-close-all-servers t]
+        ["Reset All" gnus-server-remove-denials t]))
+ 
+     (gnus-run-hooks 'gnus-server-menu-hook)))
+ 
+ (defvar gnus-server-mode-map nil)
+ (put 'gnus-server-mode 'mode-class 'special)
+ 
+ (unless gnus-server-mode-map
+   (setq gnus-server-mode-map (make-sparse-keymap))
+   (suppress-keymap gnus-server-mode-map)
+ 
+   (gnus-define-keys gnus-server-mode-map
+     " " gnus-server-read-server-in-server-buffer
+     "\r" gnus-server-read-server
+     gnus-mouse-2 gnus-server-pick-server
+     "q" gnus-server-exit
+     "l" gnus-server-list-servers
+     "k" gnus-server-kill-server
+     "y" gnus-server-yank-server
+     "c" gnus-server-copy-server
+     "a" gnus-server-add-server
+     "e" gnus-server-edit-server
+     "s" gnus-server-scan-server
+ 
+     "O" gnus-server-open-server
+     "\M-o" gnus-server-open-all-servers
+     "C" gnus-server-close-server
+     "\M-c" gnus-server-close-all-servers
+     "D" gnus-server-deny-server
+     "L" gnus-server-offline-server
+     "R" gnus-server-remove-denials
+ 
+     "n" next-line
+     "p" previous-line
+ 
+     "g" gnus-server-regenerate-server
+ 
+     "\C-c\C-i" gnus-info-find-node
+     "\C-c\C-b" gnus-bug))
+ 
+ (defface gnus-server-agent-face
+   '((((class color) (background light)) (:foreground "PaleTurquoise" :bold t))
+     (((class color) (background dark)) (:foreground "PaleTurquoise" :bold t))
+     (t (:bold t)))
+   "Face used for displaying AGENTIZED servers"
+   :group 'gnus-server-visual)
+ 
+ (defface gnus-server-opened-face
+   '((((class color) (background light)) (:foreground "Green3" :bold t))
+     (((class color) (background dark)) (:foreground "Green1" :bold t))
+     (t (:bold t)))
+   "Face used for displaying OPENED servers"
+   :group 'gnus-server-visual)
+ 
+ (defface gnus-server-closed-face
+   '((((class color) (background light)) (:foreground "Steel Blue" :italic t))
+     (((class color) (background dark))
+      (:foreground "Light Steel Blue" :italic t))
+     (t (:italic t)))
+   "Face used for displaying CLOSED servers"
+   :group 'gnus-server-visual)
+ 
+ (defface gnus-server-denied-face
+   '((((class color) (background light)) (:foreground "Red" :bold t))
+     (((class color) (background dark)) (:foreground "Pink" :bold t))
+     (t (:inverse-video t :bold t)))
+   "Face used for displaying DENIED servers"
+   :group 'gnus-server-visual)
+ 
+ (defface gnus-server-offline-face
+   '((((class color) (background light)) (:foreground "Orange" :bold t))
+     (((class color) (background dark)) (:foreground "Yellow" :bold t))
+     (t (:inverse-video t :bold t)))
+   "Face used for displaying OFFLINE servers"
+   :group 'gnus-server-visual)
+ 
+ (defcustom gnus-server-agent-face 'gnus-server-agent-face
+   "Face name to use on AGENTIZED servers."
+   :group 'gnus-server-visual
+   :type 'face)
+ 
+ (defcustom gnus-server-opened-face 'gnus-server-opened-face
+   "Face name to use on OPENED servers."
+   :group 'gnus-server-visual
+   :type 'face)
+ 
+ (defcustom gnus-server-closed-face 'gnus-server-closed-face
+   "Face name to use on CLOSED servers."
+   :group 'gnus-server-visual
+   :type 'face)
+ 
+ (defcustom gnus-server-denied-face 'gnus-server-denied-face
+   "Face name to use on DENIED servers."
+   :group 'gnus-server-visual
+   :type 'face)
+ 
+ (defcustom gnus-server-offline-face 'gnus-server-offline-face
+   "Face name to use on OFFLINE servers."
+   :group 'gnus-server-visual
+   :type 'face)
+ 
+ (defvar gnus-server-font-lock-keywords
+   (list
+    '("(\\(agent\\))" 1 gnus-server-agent-face)
+    '("(\\(opened\\))" 1 gnus-server-opened-face)
+    '("(\\(closed\\))" 1 gnus-server-closed-face)
+    '("(\\(offline\\))" 1 gnus-server-offline-face)
+    '("(\\(denied\\))" 1 gnus-server-denied-face)))
+ 
+ (defun gnus-server-mode ()
+   "Major mode for listing and editing servers.
+ 
+ All normal editing commands are switched off.
+ \\<gnus-server-mode-map>
+ For more in-depth information on this mode, read the manual
+ \(`\\[gnus-info-find-node]').
+ 
+ The following commands are available:
+ 
+ \\{gnus-server-mode-map}"
+   (interactive)
+   (when (gnus-visual-p 'server-menu 'menu)
+     (gnus-server-make-menu-bar))
+   (kill-all-local-variables)
+   (gnus-simplify-mode-line)
+   (setq major-mode 'gnus-server-mode)
+   (setq mode-name "Server")
+   (gnus-set-default-directory)
+   (setq mode-line-process nil)
+   (use-local-map gnus-server-mode-map)
+   (buffer-disable-undo)
+   (setq truncate-lines t)
+   (setq buffer-read-only t)
+   (if (featurep 'xemacs)
+       (put 'gnus-server-mode 'font-lock-defaults 
'(gnus-server-font-lock-keywords t))
+     (set (make-local-variable 'font-lock-defaults)
+        '(gnus-server-font-lock-keywords t)))
+   (gnus-run-hooks 'gnus-server-mode-hook))
+ 
+ (defun gnus-server-insert-server-line (gnus-tmp-name method)
+   (let* ((gnus-tmp-how (car method))
+        (gnus-tmp-where (nth 1 method))
+        (elem (assoc method gnus-opened-servers))
+        (gnus-tmp-status
+         (cond
+          ((eq (nth 1 elem) 'denied) "(denied)")
+          ((eq (nth 1 elem) 'offline) "(offline)")
+          (t
+           (condition-case nil
+               (if (or (gnus-server-opened method)
+                       (eq (nth 1 elem) 'ok))
+                   "(opened)"
+                 "(closed)")
+             ((error) "(error)")))))
+        (gnus-tmp-agent (if (and gnus-agent
+                                 (gnus-agent-method-p method))
+                            " (agent)"
+                          "")))
+     (beginning-of-line)
+     (gnus-add-text-properties
+      (point)
+      (prog1 (1+ (point))
+        ;; Insert the text.
+        (eval gnus-server-line-format-spec))
+      (list 'gnus-server (intern gnus-tmp-name)
+            'gnus-named-server (intern (gnus-method-to-server method))))))
+ 
+ (defun gnus-enter-server-buffer ()
+   "Set up the server buffer."
+   (gnus-server-setup-buffer)
+   (gnus-configure-windows 'server)
+   (gnus-server-prepare))
+ 
+ (defun gnus-server-setup-buffer ()
+   "Initialize the server buffer."
+   (unless (get-buffer gnus-server-buffer)
+     (save-excursion
+       (set-buffer (gnus-get-buffer-create gnus-server-buffer))
+       (gnus-server-mode)
+       (when gnus-carpal
+       (gnus-carpal-setup-buffer 'server)))))
+ 
+ (defun gnus-server-prepare ()
+   (gnus-set-format 'server-mode)
+   (gnus-set-format 'server t)
+   (let ((alist gnus-server-alist)
+       (buffer-read-only nil)
+       (opened gnus-opened-servers)
+       done server op-ser)
+     (erase-buffer)
+     (setq gnus-inserted-opened-servers nil)
+     ;; First we do the real list of servers.
+     (while alist
+       (unless (member (cdar alist) done)
+       (push (cdar alist) done)
+       (setq server (pop alist))
+       (when (and server (car server) (cdr server))
+         (gnus-server-insert-server-line (car server) (cdr server))))
+       (when (member (cdar alist) done)
+       (pop alist)))
+     ;; Then we insert the list of servers that have been opened in
+     ;; this session.
+     (while opened
+       (when (and (not (member (caar opened) done))
+                ;; Just ignore ephemeral servers.
+                (not (member (caar opened) gnus-ephemeral-servers)))
+       (push (caar opened) done)
+       (gnus-server-insert-server-line
+        (setq op-ser (format "%s:%s" (caaar opened) (nth 1 (caar opened))))
+        (caar opened))
+       (push (list op-ser (caar opened)) gnus-inserted-opened-servers))
+       (setq opened (cdr opened))))
+   (goto-char (point-min))
+   (gnus-server-position-point))
+ 
+ (defun gnus-server-server-name ()
+   (let ((server (get-text-property (gnus-point-at-bol) 'gnus-server)))
+     (and server (symbol-name server))))
+ 
+ (defun gnus-server-named-server ()
+   "Returns a server name that matches one of the names returned by
+ gnus-method-to-server."
+   (let ((server (get-text-property (gnus-point-at-bol) 'gnus-named-server)))
+     (and server (symbol-name server))))
+ 
+ (defalias 'gnus-server-position-point 'gnus-goto-colon)
+ 
+ (defconst gnus-server-edit-buffer "*Gnus edit server*")
+ 
+ (defun gnus-server-update-server (server)
+   (save-excursion
+     (set-buffer gnus-server-buffer)
+     (let* ((buffer-read-only nil)
+          (entry (assoc server gnus-server-alist))
+          (oentry (assoc (gnus-server-to-method server)
+                         gnus-opened-servers)))
+       (when entry
+       (gnus-dribble-enter
+        (concat "(gnus-server-set-info \"" server "\" '"
+                (gnus-prin1-to-string (cdr entry)) ")\n")))
+       (when (or entry oentry)
+       ;; Buffer may be narrowed.
+       (save-restriction
+         (widen)
+         (when (gnus-server-goto-server server)
+           (gnus-delete-line))
+         (if entry
+             (gnus-server-insert-server-line (car entry) (cdr entry))
+           (gnus-server-insert-server-line
+            (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
+            (car oentry)))
+         (gnus-server-position-point))))))
+ 
+ (defun gnus-server-set-info (server info)
+   ;; Enter a select method into the virtual server alist.
+   (when (and server info)
+     (gnus-dribble-enter
+      (concat "(gnus-server-set-info \"" server "\" '"
+            (gnus-prin1-to-string info) ")"))
+     (let* ((server (nth 1 info))
+          (entry (assoc server gnus-server-alist))
+          (cached (assoc server gnus-server-method-cache)))
+       (if cached
+         (setq gnus-server-method-cache
+               (delq cached gnus-server-method-cache)))
+       (if entry (setcdr entry info)
+       (setq gnus-server-alist
+             (nconc gnus-server-alist (list (cons server info))))))))
+ 
+ ;;; Interactive server functions.
+ 
+ (defun gnus-server-kill-server (server)
+   "Kill the server on the current line."
+   (interactive (list (gnus-server-server-name)))
+   (unless (gnus-server-goto-server server)
+     (if server (error "No such server: %s" server)
+       (error "No server on the current line")))
+   (unless (assoc server gnus-server-alist)
+     (error "Read-only server %s" server))
+   (gnus-dribble-touch)
+   (let ((buffer-read-only nil))
+     (gnus-delete-line))
+   (push (assoc server gnus-server-alist) gnus-server-killed-servers)
+   (setq gnus-server-alist (delq (car gnus-server-killed-servers)
+                               gnus-server-alist))
+   (let ((groups (gnus-groups-from-server server)))
+     (when (and groups
+              (gnus-yes-or-no-p
+               (format "Kill all %s groups from this server? "
+                       (length groups))))
+       (dolist (group groups)
+       (setq gnus-newsrc-alist
+             (delq (assoc group gnus-newsrc-alist)
+                   gnus-newsrc-alist))
+       (when gnus-group-change-level-function
+         (funcall gnus-group-change-level-function
+                  group gnus-level-killed 3)))))
+   (gnus-server-position-point))
+ 
+ (defun gnus-server-yank-server ()
+   "Yank the previously killed server."
+   (interactive)
+   (unless gnus-server-killed-servers
+     (error "No killed servers to be yanked"))
+   (let ((alist gnus-server-alist)
+       (server (gnus-server-server-name))
+       (killed (car gnus-server-killed-servers)))
+     (if (not server)
+       (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
+       (if (string= server (caar gnus-server-alist))
+         (push killed gnus-server-alist)
+       (while (and (cdr alist)
+                   (not (string= server (caadr alist))))
+         (setq alist (cdr alist)))
+       (if alist
+           (setcdr alist (cons killed (cdr alist)))
+         (setq gnus-server-alist (list killed)))))
+     (gnus-server-update-server (car killed))
+     (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
+     (gnus-server-position-point)))
+ 
+ (defun gnus-server-exit ()
+   "Return to the group buffer."
+   (interactive)
+   (gnus-run-hooks 'gnus-server-exit-hook)
+   (gnus-kill-buffer (current-buffer))
+   (gnus-configure-windows 'group t))
+ 
+ (defun gnus-server-list-servers ()
+   "List all available servers."
+   (interactive)
+   (let ((cur (gnus-server-server-name)))
+     (gnus-server-prepare)
+     (if cur (gnus-server-goto-server cur)
+       (goto-char (point-max))
+       (forward-line -1))
+     (gnus-server-position-point)))
+ 
+ (defun gnus-server-set-status (method status)
+   "Make METHOD have STATUS."
+   (let ((entry (assoc method gnus-opened-servers)))
+     (if entry
+       (setcar (cdr entry) status)
+       (push (list method status) gnus-opened-servers))))
+ 
+ (defun gnus-opened-servers-remove (method)
+   "Remove METHOD from the list of opened servers."
+   (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
+                                 gnus-opened-servers)))
+ 
+ (defun gnus-server-open-server (server)
+   "Force an open of SERVER."
+   (interactive (list (gnus-server-server-name)))
+   (let ((method (gnus-server-to-method server)))
+     (unless method
+       (error "No such server: %s" server))
+     (gnus-server-set-status method 'ok)
+     (prog1
+       (or (gnus-open-server method)
+           (progn (message "Couldn't open %s" server) nil))
+       (gnus-server-update-server server)
+       (gnus-server-position-point))))
+ 
+ (defun gnus-server-open-all-servers ()
+   "Open all servers."
+   (interactive)
+   (let ((servers gnus-inserted-opened-servers))
+     (while servers
+       (gnus-server-open-server (car (pop servers))))))
+ 
+ (defun gnus-server-close-server (server)
+   "Close SERVER."
+   (interactive (list (gnus-server-server-name)))
+   (let ((method (gnus-server-to-method server)))
+     (unless method
+       (error "No such server: %s" server))
+     (gnus-server-set-status method 'closed)
+     (prog1
+       (gnus-close-server method)
+       (gnus-server-update-server server)
+       (gnus-server-position-point))))
+ 
+ (defun gnus-server-offline-server (server)
+   "Set SERVER to offline."
+   (interactive (list (gnus-server-server-name)))
+   (let ((method (gnus-server-to-method server)))
+     (unless method
+       (error "No such server: %s" server))
+     (prog1
+       (gnus-close-server method)
+       (gnus-server-set-status method 'offline)
+       (gnus-server-update-server server)
+       (gnus-server-position-point))))
+ 
+ (defun gnus-server-close-all-servers ()
+   "Close all servers."
+   (interactive)
+   (dolist (server gnus-inserted-opened-servers)
+     (gnus-server-close-server (car server))))
+ 
+ (defun gnus-server-deny-server (server)
+   "Make sure SERVER will never be attempted opened."
+   (interactive (list (gnus-server-server-name)))
+   (let ((method (gnus-server-to-method server)))
+     (unless method
+       (error "No such server: %s" server))
+     (gnus-server-set-status method 'denied))
+   (gnus-server-update-server server)
+   (gnus-server-position-point)
+   t)
+ 
+ (defun gnus-server-remove-denials ()
+   "Make all denied servers into closed servers."
+   (interactive)
+   (dolist (server gnus-opened-servers)
+     (when (eq (nth 1 server) 'denied)
+       (setcar (nthcdr 1 server) 'closed)))
+   (gnus-server-list-servers))
+ 
+ (defun gnus-server-copy-server (from to)
+   (interactive
+    (list
+     (or (gnus-server-server-name)
+       (error "No server on the current line"))
+     (read-string "Copy to: ")))
+   (unless from
+     (error "No server on current line"))
+   (unless (and to (not (string= to "")))
+     (error "No name to copy to"))
+   (when (assoc to gnus-server-alist)
+     (error "%s already exists" to))
+   (unless (gnus-server-to-method from)
+     (error "%s: no such server" from))
+   (let ((to-entry (cons from (gnus-copy-sequence
+                             (gnus-server-to-method from)))))
+     (setcar to-entry to)
+     (setcar (nthcdr 2 to-entry) to)
+     (push to-entry gnus-server-killed-servers)
+     (gnus-server-yank-server)))
+ 
+ (defun gnus-server-add-server (how where)
+   (interactive
+    (list (intern (completing-read "Server method: "
+                                 gnus-valid-select-methods nil t))
+        (read-string "Server name: ")))
+   (when (assq where gnus-server-alist)
+     (error "Server with that name already defined"))
+   (push (list where how where) gnus-server-killed-servers)
+   (gnus-server-yank-server))
+ 
+ (defun gnus-server-goto-server (server)
+   "Jump to a server line."
+   (interactive
+    (list (completing-read "Goto server: " gnus-server-alist nil t)))
+   (let ((to (text-property-any (point-min) (point-max)
+                              'gnus-server (intern server))))
+     (when to
+       (goto-char to)
+       (gnus-server-position-point))))
+ 
+ (defun gnus-server-edit-server (server)
+   "Edit the server on the current line."
+   (interactive (list (gnus-server-server-name)))
+   (unless server
+     (error "No server on current line"))
+   (unless (assoc server gnus-server-alist)
+     (error "This server can't be edited"))
+   (let ((info (cdr (assoc server gnus-server-alist))))
+     (gnus-close-server info)
+     (gnus-edit-form
+      info "Editing the server."
+      `(lambda (form)
+       (gnus-server-set-info ,server form)
+       (gnus-server-list-servers)
+       (gnus-server-position-point)))))
+ 
+ (defun gnus-server-scan-server (server)
+   "Request a scan from the current server."
+   (interactive (list (gnus-server-server-name)))
+   (let ((method (gnus-server-to-method server)))
+     (if (not (gnus-get-function method 'request-scan))
+       (error "Server %s can't scan" (car method))
+       (gnus-message 3 "Scanning %s..." server)
+       (gnus-request-scan nil method)
+       (gnus-message 3 "Scanning %s...done" server))))
+ 
+ (defun gnus-server-read-server-in-server-buffer (server)
+   "Browse a server in server buffer."
+   (interactive (list (gnus-server-server-name)))
+   (let (gnus-server-browse-in-group-buffer)
+     (gnus-server-read-server server)))
+ 
+ (defun gnus-server-read-server (server)
+   "Browse a server."
+   (interactive (list (gnus-server-server-name)))
+   (let ((buf (current-buffer)))
+     (prog1
+       (gnus-browse-foreign-server server buf)
+       (save-excursion
+       (set-buffer buf)
+       (gnus-server-update-server (gnus-server-server-name))
+       (gnus-server-position-point)))))
+ 
+ (defun gnus-server-pick-server (e)
+   (interactive "e")
+   (mouse-set-point e)
+   (gnus-server-read-server (gnus-server-server-name)))
+ 
+ 
+ ;;;
+ ;;; Browse Server Mode
+ ;;;
+ 
+ (defvar gnus-browse-menu-hook nil
+   "*Hook run after the creation of the browse mode menu.")
+ 
+ (defvar gnus-browse-mode-hook nil)
+ (defvar gnus-browse-mode-map nil)
+ (put 'gnus-browse-mode 'mode-class 'special)
+ 
+ (unless gnus-browse-mode-map
+   (setq gnus-browse-mode-map (make-keymap))
+   (suppress-keymap gnus-browse-mode-map)
+ 
+   (gnus-define-keys
+       gnus-browse-mode-map
+     " " gnus-browse-read-group
+     "=" gnus-browse-select-group
+     "n" gnus-browse-next-group
+     "p" gnus-browse-prev-group
+     "\177" gnus-browse-prev-group
+     [delete] gnus-browse-prev-group
+     "N" gnus-browse-next-group
+     "P" gnus-browse-prev-group
+     "\M-n" gnus-browse-next-group
+     "\M-p" gnus-browse-prev-group
+     "\r" gnus-browse-select-group
+     "u" gnus-browse-unsubscribe-current-group
+     "l" gnus-browse-exit
+     "L" gnus-browse-exit
+     "q" gnus-browse-exit
+     "Q" gnus-browse-exit
+     "d" gnus-browse-describe-group
+     "\C-c\C-c" gnus-browse-exit
+     "?" gnus-browse-describe-briefly
+ 
+     "\C-c\C-i" gnus-info-find-node
+     "\C-c\C-b" gnus-bug))
+ 
+ (defun gnus-browse-make-menu-bar ()
+   (gnus-turn-off-edit-menu 'browse)
+   (unless (boundp 'gnus-browse-menu)
+     (easy-menu-define
+      gnus-browse-menu gnus-browse-mode-map ""
+      '("Browse"
+        ["Subscribe" gnus-browse-unsubscribe-current-group t]
+        ["Read" gnus-browse-read-group t]
+        ["Select" gnus-browse-select-group t]
+        ["Describe" gnus-browse-describe-group t]
+        ["Next" gnus-browse-next-group t]
+        ["Prev" gnus-browse-prev-group t]
+        ["Exit" gnus-browse-exit t]))
+     (gnus-run-hooks 'gnus-browse-menu-hook)))
+ 
+ (defvar gnus-browse-current-method nil)
+ (defvar gnus-browse-return-buffer nil)
+ 
+ (defvar gnus-browse-buffer "*Gnus Browse Server*")
+ 
+ (defun gnus-browse-foreign-server (server &optional return-buffer)
+   "Browse the server SERVER."
+   (setq gnus-browse-current-method (gnus-server-to-method server))
+   (setq gnus-browse-return-buffer return-buffer)
+   (let* ((method gnus-browse-current-method)
+        (orig-select-method gnus-select-method)
+        (gnus-select-method method)
+        groups group)
+     (gnus-message 5 "Connecting to %s..." (nth 1 method))
+     (cond
+      ((not (gnus-check-server method))
+       (gnus-message
+        1 "Unable to contact server %s: %s" (nth 1 method)
+        (gnus-status-message method))
+       nil)
+      ((not
+        (prog2
+          (gnus-message 6 "Reading active file...")
+          (gnus-request-list method)
+        (gnus-message 6 "Reading active file...done")))
+       (gnus-message
+        1 "Couldn't request list: %s" (gnus-status-message method))
+       nil)
+      (t
+       (with-current-buffer nntp-server-buffer
+       (let ((cur (current-buffer)))
+         (goto-char (point-min))
+         (unless (string= gnus-ignored-newsgroups "")
+           (delete-matching-lines gnus-ignored-newsgroups))
+         ;; We treat NNTP as a special case to avoid problems with
+         ;; garbage group names like `"foo' that appear in some badly
+         ;; managed active files. -jh.
+         (if (eq (car method) 'nntp)
+             (while (not (eobp))
+               (ignore-errors
+                 (push (cons 
+                        (buffer-substring 
+                         (point)
+                         (progn 
+                           (skip-chars-forward "^ \t")
+                           (point)))
+                        (let ((last (read cur)))
+                          (cons (read cur) last)))
+                       groups))
+               (forward-line))
+           (while (not (eobp))
+             (ignore-errors
+               (push (cons
+                      (if (eq (char-after) ?\")
+                          (read cur)
+                        (let ((p (point)) (name ""))
+                          (skip-chars-forward "^ \t\\\\")
+                          (setq name (buffer-substring p (point)))
+                          (while (eq (char-after) ?\\)
+                            (setq p (1+ (point)))
+                            (forward-char 2)
+                            (skip-chars-forward "^ \t\\\\")
+                            (setq name (concat name (buffer-substring
+                                                     p (point)))))
+                          name))
+                      (let ((last (read cur)))
+                        (cons (read cur) last)))
+                     groups))
+             (forward-line)))))
+       (setq groups (sort groups
+                        (lambda (l1 l2)
+                          (string< (car l1) (car l2)))))
+       (if gnus-server-browse-in-group-buffer
+         (let* ((gnus-select-method orig-select-method)
+                (gnus-group-listed-groups
+                 (mapcar (lambda (group)
+                           (let ((name
+                                  (gnus-group-prefixed-name
+                                   (car group) method)))
+                             (gnus-set-active name (cdr group))
+                             name))
+                         groups)))
+           (gnus-configure-windows 'group)
+           (funcall gnus-group-prepare-function
+                    gnus-level-killed 'ignore 1 'ignore))
+       (gnus-get-buffer-create gnus-browse-buffer)
+       (when gnus-carpal
+         (gnus-carpal-setup-buffer 'browse))
+       (gnus-configure-windows 'browse)
+       (buffer-disable-undo)
+       (let ((buffer-read-only nil))
+         (erase-buffer))
+       (gnus-browse-mode)
+       (setq mode-line-buffer-identification
+             (list
+              (format
+               "Gnus: %%b {%s:%s}" (car method) (cadr method))))
+       (let ((buffer-read-only nil)
+             name
+             (prefix (let ((gnus-select-method orig-select-method))
+                       (gnus-group-prefixed-name "" method))))
+         (while (setq group (pop groups))
+           (gnus-add-text-properties
+            (point)
+            (prog1 (1+ (point))
+              (insert
+               (format "%c%7d: %s\n"
+                       (let ((level (gnus-group-level
+                                     (concat prefix (setq name (car group))))))
+                             (cond
+                              ((<= level gnus-level-subscribed) ? )
+                              ((<= level gnus-level-unsubscribed) ?U)
+                              ((= level gnus-level-zombie) ?Z)
+                              (t ?K)))
+                       (max 0 (- (1+ (cddr group)) (cadr group)))
+                       (mm-decode-coding-string
+                        name
+                        (inline (gnus-group-name-charset method name))))))
+            (list 'gnus-group name))))
+       (switch-to-buffer (current-buffer)))
+       (goto-char (point-min))
+       (gnus-group-position-point)
+       (gnus-message 5 "Connecting to %s...done" (nth 1 method))
+       t))))
+ 
+ (defun gnus-browse-mode ()
+   "Major mode for browsing a foreign server.
+ 
+ All normal editing commands are switched off.
+ 
+ \\<gnus-browse-mode-map>
+ The only things you can do in this buffer is
+ 
+ 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
+ The group will be inserted into the group buffer upon exit from this
+ buffer.
+ 
+ 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
+ 
+ 3) `\\[gnus-browse-exit]' to return to the group buffer."
+   (interactive)
+   (kill-all-local-variables)
+   (when (gnus-visual-p 'browse-menu 'menu)
+     (gnus-browse-make-menu-bar))
+   (gnus-simplify-mode-line)
+   (setq major-mode 'gnus-browse-mode)
+   (setq mode-name "Browse Server")
+   (setq mode-line-process nil)
+   (use-local-map gnus-browse-mode-map)
+   (buffer-disable-undo)
+   (setq truncate-lines t)
+   (gnus-set-default-directory)
+   (setq buffer-read-only t)
+   (gnus-run-hooks 'gnus-browse-mode-hook))
+ 
+ (defun gnus-browse-read-group (&optional no-article)
+   "Enter the group at the current line."
+   (interactive)
+   (let ((group (gnus-browse-group-name)))
+     (if (or (not (gnus-get-info group))
+           (gnus-ephemeral-group-p group))
+       (unless (gnus-group-read-ephemeral-group
+                group gnus-browse-current-method nil
+                (cons (current-buffer) 'browse))
+         (error "Couldn't enter %s" group))
+       (unless (gnus-group-read-group nil no-article group)
+       (error "Couldn't enter %s" group)))))
+ 
+ (defun gnus-browse-select-group ()
+   "Select the current group."
+   (interactive)
+   (gnus-browse-read-group 'no))
+ 
+ (defun gnus-browse-next-group (n)
+   "Go to the next group."
+   (interactive "p")
+   (prog1
+       (forward-line n)
+     (gnus-group-position-point)))
+ 
+ (defun gnus-browse-prev-group (n)
+   "Go to the next group."
+   (interactive "p")
+   (gnus-browse-next-group (- n)))
+ 
+ (defun gnus-browse-unsubscribe-current-group (arg)
+   "(Un)subscribe to the next ARG groups."
+   (interactive "p")
+   (when (eobp)
+     (error "No group at current line"))
+   (let ((ward (if (< arg 0) -1 1))
+       (arg (abs arg)))
+     (while (and (> arg 0)
+               (not (eobp))
+               (gnus-browse-unsubscribe-group)
+               (zerop (gnus-browse-next-group ward)))
+       (decf arg))
+     (gnus-group-position-point)
+     (when (/= 0 arg)
+       (gnus-message 7 "No more newsgroups"))
+     arg))
+ 
+ (defun gnus-browse-group-name ()
+   (save-excursion
+     (beginning-of-line)
+     (let ((name (get-text-property (point) 'gnus-group)))
+       (when (re-search-forward ": \\(.*\\)$" (gnus-point-at-eol) t)
+       (concat (gnus-method-to-server-name gnus-browse-current-method) ":" 
+               (or name
+                   (match-string-no-properties 1)))))))
+ 
+ (defun gnus-browse-describe-group (group)
+   "Describe the current group."
+   (interactive (list (gnus-browse-group-name)))
+   (gnus-group-describe-group nil group))
+ 
+ (defun gnus-browse-unsubscribe-group ()
+   "Toggle subscription of the current group in the browse buffer."
+   (let ((sub nil)
+       (buffer-read-only nil)
+       group)
+     (save-excursion
+       (beginning-of-line)
+       ;; If this group it killed, then we want to subscribe it.
+       (unless (eq (char-after) ? )
+       (setq sub t))
+       (setq group (gnus-browse-group-name))
+       (when (gnus-server-equal gnus-browse-current-method "native")
+       (setq group (gnus-group-real-name group)))
+       (if sub
+         (progn
+           ;; Make sure the group has been properly removed before we
+           ;; subscribe to it.
+           (gnus-kill-ephemeral-group group)
+           (gnus-group-change-level
+            (list t group gnus-level-default-subscribed
+                  nil nil (if (gnus-server-equal
+                               gnus-browse-current-method "native")
+                              nil
+                            (gnus-method-simplify
+                             gnus-browse-current-method)))
+            gnus-level-default-subscribed (gnus-group-level group)
+            (and (car (nth 1 gnus-newsrc-alist))
+                 (gnus-gethash (car (nth 1 gnus-newsrc-alist))
+                               gnus-newsrc-hashtb))
+            t)
+           (delete-char 1)
+           (insert ? ))
+       (gnus-group-change-level
+        group gnus-level-unsubscribed gnus-level-default-subscribed)
+       (delete-char 1)
+       (insert ?U)))
+     t))
+ 
+ (defun gnus-browse-exit ()
+   "Quit browsing and return to the group buffer."
+   (interactive)
+   (when (eq major-mode 'gnus-browse-mode)
+     (gnus-kill-buffer (current-buffer)))
+   ;; Insert the newly subscribed groups in the group buffer.
+   (save-excursion
+     (set-buffer gnus-group-buffer)
+     (gnus-group-list-groups nil))
+   (if gnus-browse-return-buffer
+       (gnus-configure-windows 'server 'force)
+     (gnus-configure-windows 'group 'force)))
+ 
+ (defun gnus-browse-describe-briefly ()
+   "Give a one line description of the group mode commands."
+   (interactive)
+   (gnus-message 6
+               (substitute-command-keys 
"\\<gnus-browse-mode-map>\\[gnus-group-next-group]:Forward  
\\[gnus-group-prev-group]:Backward  \\[gnus-browse-exit]:Exit  
\\[gnus-info-find-node]:Run Info  \\[gnus-browse-describe-briefly]:This help")))
+ 
+ (defun gnus-server-regenerate-server ()
+   "Issue a command to the server to regenerate all its data structures."
+   (interactive)
+   (let ((server (gnus-server-server-name)))
+     (unless server
+       (error "No server on the current line"))
+     (condition-case ()
+       (gnus-get-function (gnus-server-to-method server)
+                          'request-regenerate)
+       (error
+       (error "This backend doesn't support regeneration")))
+     (gnus-message 5 "Requesting regeneration of %s..." server)
+     (unless (gnus-open-server server)
+       (error "Couldn't open server"))
+     (if (gnus-request-regenerate server)
+       (gnus-message 5 "Requesting regeneration of %s...done" server)
+       (gnus-message 5 "Couldn't regenerate %s" server))))
+ 
+ (provide 'gnus-srvr)
+ 
+ ;;; arch-tag: c0117f64-27ca-475d-9406-8da6854c7a25
+ ;;; gnus-srvr.el ends here