1 ;;; gnus-srvr.el --- virtual server support for Gnus
2 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
29 (eval-when-compile (require 'cl))
37 (defcustom gnus-server-mode-hook nil
38 "Hook run in `gnus-server-mode' buffers."
42 (defcustom gnus-server-exit-hook nil
43 "Hook run when exiting the server buffer."
47 (defcustom gnus-server-line-format " {%(%h:%w%)} %s%a\n"
48 "Format of server lines.
49 It works along the same lines as a normal formatting string,
50 with some simple extensions.
52 The following specs are understood:
60 General format specifiers can also be used.
61 See Info node `(gnus)Formatting Variables'."
62 :link '(custom-manual "(gnus)Formatting Variables")
63 :group 'gnus-server-visual
66 (defcustom gnus-server-mode-line-format "Gnus: %%b"
67 "The format specification for the server mode line."
68 :group 'gnus-server-visual
71 (defcustom gnus-server-browse-in-group-buffer nil
72 "Whether server browsing should take place in the group buffer.
73 If nil, a faster, but more primitive, buffer is used instead."
74 :group 'gnus-server-visual
77 ;;; Internal variables.
79 (defvar gnus-inserted-opened-servers nil)
81 (defvar gnus-server-line-format-alist
82 `((?h gnus-tmp-how ?s)
84 (?w gnus-tmp-where ?s)
85 (?s gnus-tmp-status ?s)
86 (?a gnus-tmp-agent ?s)))
88 (defvar gnus-server-mode-line-format-alist
89 `((?S gnus-tmp-news-server ?s)
90 (?M gnus-tmp-news-method ?s)
91 (?u gnus-tmp-user-defined ?s)))
93 (defvar gnus-server-line-format-spec nil)
94 (defvar gnus-server-mode-line-format-spec nil)
95 (defvar gnus-server-killed-servers nil)
97 (defvar gnus-server-mode-map)
99 (defvar gnus-server-menu-hook nil
100 "*Hook run after the creation of the server mode menu.")
102 (defun gnus-server-make-menu-bar ()
103 (gnus-turn-off-edit-menu 'server)
104 (unless (boundp 'gnus-server-server-menu)
106 gnus-server-server-menu gnus-server-mode-map ""
108 ["Add..." gnus-server-add-server t]
109 ["Browse" gnus-server-read-server t]
110 ["Scan" gnus-server-scan-server t]
111 ["List" gnus-server-list-servers t]
112 ["Kill" gnus-server-kill-server t]
113 ["Yank" gnus-server-yank-server t]
114 ["Copy" gnus-server-copy-server t]
115 ["Edit" gnus-server-edit-server t]
116 ["Regenerate" gnus-server-regenerate-server t]
117 ["Exit" gnus-server-exit t]))
120 gnus-server-connections-menu gnus-server-mode-map ""
122 ["Open" gnus-server-open-server t]
123 ["Close" gnus-server-close-server t]
124 ["Offline" gnus-server-offline-server t]
125 ["Deny" gnus-server-deny-server t]
127 ["Open All" gnus-server-open-all-servers t]
128 ["Close All" gnus-server-close-all-servers t]
129 ["Reset All" gnus-server-remove-denials t]))
131 (gnus-run-hooks 'gnus-server-menu-hook)))
133 (defvar gnus-server-mode-map nil)
134 (put 'gnus-server-mode 'mode-class 'special)
136 (unless gnus-server-mode-map
137 (setq gnus-server-mode-map (make-sparse-keymap))
138 (suppress-keymap gnus-server-mode-map)
140 (gnus-define-keys gnus-server-mode-map
141 " " gnus-server-read-server-in-server-buffer
142 "\r" gnus-server-read-server
143 gnus-mouse-2 gnus-server-pick-server
145 "l" gnus-server-list-servers
146 "k" gnus-server-kill-server
147 "y" gnus-server-yank-server
148 "c" gnus-server-copy-server
149 "a" gnus-server-add-server
150 "e" gnus-server-edit-server
151 "s" gnus-server-scan-server
153 "O" gnus-server-open-server
154 "\M-o" gnus-server-open-all-servers
155 "C" gnus-server-close-server
156 "\M-c" gnus-server-close-all-servers
157 "D" gnus-server-deny-server
158 "L" gnus-server-offline-server
159 "R" gnus-server-remove-denials
164 "g" gnus-server-regenerate-server
166 "\C-c\C-i" gnus-info-find-node
167 "\C-c\C-b" gnus-bug))
169 (defface gnus-server-agent-face
170 '((((class color) (background light)) (:foreground "PaleTurquoise" :bold t))
171 (((class color) (background dark)) (:foreground "PaleTurquoise" :bold t))
173 "Face used for displaying AGENTIZED servers"
174 :group 'gnus-server-visual)
176 (defface gnus-server-opened-face
177 '((((class color) (background light)) (:foreground "Green3" :bold t))
178 (((class color) (background dark)) (:foreground "Green1" :bold t))
180 "Face used for displaying OPENED servers"
181 :group 'gnus-server-visual)
183 (defface gnus-server-closed-face
184 '((((class color) (background light)) (:foreground "Steel Blue" :italic t))
185 (((class color) (background dark))
186 (:foreground "Light Steel Blue" :italic t))
188 "Face used for displaying CLOSED servers"
189 :group 'gnus-server-visual)
191 (defface gnus-server-denied-face
192 '((((class color) (background light)) (:foreground "Red" :bold t))
193 (((class color) (background dark)) (:foreground "Pink" :bold t))
194 (t (:inverse-video t :bold t)))
195 "Face used for displaying DENIED servers"
196 :group 'gnus-server-visual)
198 (defface gnus-server-offline-face
199 '((((class color) (background light)) (:foreground "Orange" :bold t))
200 (((class color) (background dark)) (:foreground "Yellow" :bold t))
201 (t (:inverse-video t :bold t)))
202 "Face used for displaying OFFLINE servers"
203 :group 'gnus-server-visual)
205 (defcustom gnus-server-agent-face 'gnus-server-agent-face
206 "Face name to use on AGENTIZED servers."
207 :group 'gnus-server-visual
210 (defcustom gnus-server-opened-face 'gnus-server-opened-face
211 "Face name to use on OPENED servers."
212 :group 'gnus-server-visual
215 (defcustom gnus-server-closed-face 'gnus-server-closed-face
216 "Face name to use on CLOSED servers."
217 :group 'gnus-server-visual
220 (defcustom gnus-server-denied-face 'gnus-server-denied-face
221 "Face name to use on DENIED servers."
222 :group 'gnus-server-visual
225 (defcustom gnus-server-offline-face 'gnus-server-offline-face
226 "Face name to use on OFFLINE servers."
227 :group 'gnus-server-visual
230 (defvar gnus-server-font-lock-keywords
232 '("(\\(agent\\))" 1 gnus-server-agent-face)
233 '("(\\(opened\\))" 1 gnus-server-opened-face)
234 '("(\\(closed\\))" 1 gnus-server-closed-face)
235 '("(\\(offline\\))" 1 gnus-server-offline-face)
236 '("(\\(denied\\))" 1 gnus-server-denied-face)))
238 (defun gnus-server-mode ()
239 "Major mode for listing and editing servers.
241 All normal editing commands are switched off.
242 \\<gnus-server-mode-map>
243 For more in-depth information on this mode, read the manual
244 \(`\\[gnus-info-find-node]').
246 The following commands are available:
248 \\{gnus-server-mode-map}"
250 (when (gnus-visual-p 'server-menu 'menu)
251 (gnus-server-make-menu-bar))
252 (kill-all-local-variables)
253 (gnus-simplify-mode-line)
254 (setq major-mode 'gnus-server-mode)
255 (setq mode-name "Server")
256 (gnus-set-default-directory)
257 (setq mode-line-process nil)
258 (use-local-map gnus-server-mode-map)
259 (buffer-disable-undo)
260 (setq truncate-lines t)
261 (setq buffer-read-only t)
262 (if (featurep 'xemacs)
263 (put 'gnus-server-mode 'font-lock-defaults '(gnus-server-font-lock-keywords t))
264 (set (make-local-variable 'font-lock-defaults)
265 '(gnus-server-font-lock-keywords t)))
266 (gnus-run-hooks 'gnus-server-mode-hook))
268 (defun gnus-server-insert-server-line (gnus-tmp-name method)
269 (let* ((gnus-tmp-how (car method))
270 (gnus-tmp-where (nth 1 method))
271 (elem (assoc method gnus-opened-servers))
274 ((eq (nth 1 elem) 'denied) "(denied)")
275 ((eq (nth 1 elem) 'offline) "(offline)")
278 (if (or (gnus-server-opened method)
279 (eq (nth 1 elem) 'ok))
282 ((error) "(error)")))))
283 (gnus-tmp-agent (if (and gnus-agent
284 (gnus-agent-method-p method))
288 (gnus-add-text-properties
292 (eval gnus-server-line-format-spec))
293 (list 'gnus-server (intern gnus-tmp-name)
294 'gnus-named-server (intern (gnus-method-to-server method))))))
296 (defun gnus-enter-server-buffer ()
297 "Set up the server buffer."
298 (gnus-server-setup-buffer)
299 (gnus-configure-windows 'server)
300 (gnus-server-prepare))
302 (defun gnus-server-setup-buffer ()
303 "Initialize the server buffer."
304 (unless (get-buffer gnus-server-buffer)
306 (set-buffer (gnus-get-buffer-create gnus-server-buffer))
309 (gnus-carpal-setup-buffer 'server)))))
311 (defun gnus-server-prepare ()
312 (gnus-set-format 'server-mode)
313 (gnus-set-format 'server t)
314 (let ((alist gnus-server-alist)
315 (buffer-read-only nil)
316 (opened gnus-opened-servers)
319 (setq gnus-inserted-opened-servers nil)
320 ;; First we do the real list of servers.
322 (unless (member (cdar alist) done)
323 (push (cdar alist) done)
324 (setq server (pop alist))
325 (when (and server (car server) (cdr server))
326 (gnus-server-insert-server-line (car server) (cdr server))))
327 (when (member (cdar alist) done)
329 ;; Then we insert the list of servers that have been opened in
332 (when (and (not (member (caar opened) done))
333 ;; Just ignore ephemeral servers.
334 (not (member (caar opened) gnus-ephemeral-servers)))
335 (push (caar opened) done)
336 (gnus-server-insert-server-line
337 (setq op-ser (format "%s:%s" (caaar opened) (nth 1 (caar opened))))
339 (push (list op-ser (caar opened)) gnus-inserted-opened-servers))
340 (setq opened (cdr opened))))
341 (goto-char (point-min))
342 (gnus-server-position-point))
344 (defun gnus-server-server-name ()
345 (let ((server (get-text-property (point-at-bol) 'gnus-server)))
346 (and server (symbol-name server))))
348 (defun gnus-server-named-server ()
349 "Returns a server name that matches one of the names returned by
350 gnus-method-to-server."
351 (let ((server (get-text-property (point-at-bol) 'gnus-named-server)))
352 (and server (symbol-name server))))
354 (defalias 'gnus-server-position-point 'gnus-goto-colon)
356 (defconst gnus-server-edit-buffer "*Gnus edit server*")
358 (defun gnus-server-update-server (server)
360 (set-buffer gnus-server-buffer)
361 (let* ((buffer-read-only nil)
362 (entry (assoc server gnus-server-alist))
363 (oentry (assoc (gnus-server-to-method server)
364 gnus-opened-servers)))
367 (concat "(gnus-server-set-info \"" server "\" '"
368 (gnus-prin1-to-string (cdr entry)) ")\n")))
369 (when (or entry oentry)
370 ;; Buffer may be narrowed.
373 (when (gnus-server-goto-server server)
376 (gnus-server-insert-server-line (car entry) (cdr entry))
377 (gnus-server-insert-server-line
378 (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
380 (gnus-server-position-point))))))
382 (defun gnus-server-set-info (server info)
383 ;; Enter a select method into the virtual server alist.
384 (when (and server info)
386 (concat "(gnus-server-set-info \"" server "\" '"
387 (gnus-prin1-to-string info) ")"))
388 (let* ((server (nth 1 info))
389 (entry (assoc server gnus-server-alist))
390 (cached (assoc server gnus-server-method-cache)))
392 (setq gnus-server-method-cache
393 (delq cached gnus-server-method-cache)))
394 (if entry (setcdr entry info)
395 (setq gnus-server-alist
396 (nconc gnus-server-alist (list (cons server info))))))))
398 ;;; Interactive server functions.
400 (defun gnus-server-kill-server (server)
401 "Kill the server on the current line."
402 (interactive (list (gnus-server-server-name)))
403 (unless (gnus-server-goto-server server)
404 (if server (error "No such server: %s" server)
405 (error "No server on the current line")))
406 (unless (assoc server gnus-server-alist)
407 (error "Read-only server %s" server))
409 (let ((buffer-read-only nil))
411 (push (assoc server gnus-server-alist) gnus-server-killed-servers)
412 (setq gnus-server-alist (delq (car gnus-server-killed-servers)
414 (let ((groups (gnus-groups-from-server server)))
417 (format "Kill all %s groups from this server? "
419 (dolist (group groups)
420 (setq gnus-newsrc-alist
421 (delq (assoc group gnus-newsrc-alist)
423 (when gnus-group-change-level-function
424 (funcall gnus-group-change-level-function
425 group gnus-level-killed 3)))))
426 (gnus-server-position-point))
428 (defun gnus-server-yank-server ()
429 "Yank the previously killed server."
431 (unless gnus-server-killed-servers
432 (error "No killed servers to be yanked"))
433 (let ((alist gnus-server-alist)
434 (server (gnus-server-server-name))
435 (killed (car gnus-server-killed-servers)))
437 (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
438 (if (string= server (caar gnus-server-alist))
439 (push killed gnus-server-alist)
440 (while (and (cdr alist)
441 (not (string= server (caadr alist))))
442 (setq alist (cdr alist)))
444 (setcdr alist (cons killed (cdr alist)))
445 (setq gnus-server-alist (list killed)))))
446 (gnus-server-update-server (car killed))
447 (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
448 (gnus-server-position-point)))
450 (defun gnus-server-exit ()
451 "Return to the group buffer."
453 (gnus-run-hooks 'gnus-server-exit-hook)
454 (gnus-kill-buffer (current-buffer))
455 (gnus-configure-windows 'group t))
457 (defun gnus-server-list-servers ()
458 "List all available servers."
460 (let ((cur (gnus-server-server-name)))
461 (gnus-server-prepare)
462 (if cur (gnus-server-goto-server cur)
463 (goto-char (point-max))
465 (gnus-server-position-point)))
467 (defun gnus-server-set-status (method status)
468 "Make METHOD have STATUS."
469 (let ((entry (assoc method gnus-opened-servers)))
471 (setcar (cdr entry) status)
472 (push (list method status) gnus-opened-servers))))
474 (defun gnus-opened-servers-remove (method)
475 "Remove METHOD from the list of opened servers."
476 (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
477 gnus-opened-servers)))
479 (defun gnus-server-open-server (server)
480 "Force an open of SERVER."
481 (interactive (list (gnus-server-server-name)))
482 (let ((method (gnus-server-to-method server)))
484 (error "No such server: %s" server))
485 (gnus-server-set-status method 'ok)
487 (or (gnus-open-server method)
488 (progn (message "Couldn't open %s" server) nil))
489 (gnus-server-update-server server)
490 (gnus-server-position-point))))
492 (defun gnus-server-open-all-servers ()
495 (let ((servers gnus-inserted-opened-servers))
497 (gnus-server-open-server (car (pop servers))))))
499 (defun gnus-server-close-server (server)
501 (interactive (list (gnus-server-server-name)))
502 (let ((method (gnus-server-to-method server)))
504 (error "No such server: %s" server))
505 (gnus-server-set-status method 'closed)
507 (gnus-close-server method)
508 (gnus-server-update-server server)
509 (gnus-server-position-point))))
511 (defun gnus-server-offline-server (server)
512 "Set SERVER to offline."
513 (interactive (list (gnus-server-server-name)))
514 (let ((method (gnus-server-to-method server)))
516 (error "No such server: %s" server))
518 (gnus-close-server method)
519 (gnus-server-set-status method 'offline)
520 (gnus-server-update-server server)
521 (gnus-server-position-point))))
523 (defun gnus-server-close-all-servers ()
526 (dolist (server gnus-inserted-opened-servers)
527 (gnus-server-close-server (car server))))
529 (defun gnus-server-deny-server (server)
530 "Make sure SERVER will never be attempted opened."
531 (interactive (list (gnus-server-server-name)))
532 (let ((method (gnus-server-to-method server)))
534 (error "No such server: %s" server))
535 (gnus-server-set-status method 'denied))
536 (gnus-server-update-server server)
537 (gnus-server-position-point)
540 (defun gnus-server-remove-denials ()
541 "Make all denied servers into closed servers."
543 (dolist (server gnus-opened-servers)
544 (when (eq (nth 1 server) 'denied)
545 (setcar (nthcdr 1 server) 'closed)))
546 (gnus-server-list-servers))
548 (defun gnus-server-copy-server (from to)
551 (or (gnus-server-server-name)
552 (error "No server on the current line"))
553 (read-string "Copy to: ")))
555 (error "No server on current line"))
556 (unless (and to (not (string= to "")))
557 (error "No name to copy to"))
558 (when (assoc to gnus-server-alist)
559 (error "%s already exists" to))
560 (unless (gnus-server-to-method from)
561 (error "%s: no such server" from))
562 (let ((to-entry (cons from (gnus-copy-sequence
563 (gnus-server-to-method from)))))
565 (setcar (nthcdr 2 to-entry) to)
566 (push to-entry gnus-server-killed-servers)
567 (gnus-server-yank-server)))
569 (defun gnus-server-add-server (how where)
571 (list (intern (completing-read "Server method: "
572 gnus-valid-select-methods nil t))
573 (read-string "Server name: ")))
574 (when (assq where gnus-server-alist)
575 (error "Server with that name already defined"))
576 (push (list where how where) gnus-server-killed-servers)
577 (gnus-server-yank-server))
579 (defun gnus-server-goto-server (server)
580 "Jump to a server line."
582 (list (completing-read "Goto server: " gnus-server-alist nil t)))
583 (let ((to (text-property-any (point-min) (point-max)
584 'gnus-server (intern server))))
587 (gnus-server-position-point))))
589 (defun gnus-server-edit-server (server)
590 "Edit the server on the current line."
591 (interactive (list (gnus-server-server-name)))
593 (error "No server on current line"))
594 (unless (assoc server gnus-server-alist)
595 (error "This server can't be edited"))
596 (let ((info (cdr (assoc server gnus-server-alist))))
597 (gnus-close-server info)
599 info "Editing the server."
601 (gnus-server-set-info ,server form)
602 (gnus-server-list-servers)
603 (gnus-server-position-point)))))
605 (defun gnus-server-scan-server (server)
606 "Request a scan from the current server."
607 (interactive (list (gnus-server-server-name)))
608 (let ((method (gnus-server-to-method server)))
609 (if (not (gnus-get-function method 'request-scan))
610 (error "Server %s can't scan" (car method))
611 (gnus-message 3 "Scanning %s..." server)
612 (gnus-request-scan nil method)
613 (gnus-message 3 "Scanning %s...done" server))))
615 (defun gnus-server-read-server-in-server-buffer (server)
616 "Browse a server in server buffer."
617 (interactive (list (gnus-server-server-name)))
618 (let (gnus-server-browse-in-group-buffer)
619 (gnus-server-read-server server)))
621 (defun gnus-server-read-server (server)
623 (interactive (list (gnus-server-server-name)))
624 (let ((buf (current-buffer)))
626 (gnus-browse-foreign-server server buf)
629 (gnus-server-update-server (gnus-server-server-name))
630 (gnus-server-position-point)))))
632 (defun gnus-server-pick-server (e)
635 (gnus-server-read-server (gnus-server-server-name)))
639 ;;; Browse Server Mode
642 (defvar gnus-browse-menu-hook nil
643 "*Hook run after the creation of the browse mode menu.")
645 (defvar gnus-browse-mode-hook nil)
646 (defvar gnus-browse-mode-map nil)
647 (put 'gnus-browse-mode 'mode-class 'special)
649 (unless gnus-browse-mode-map
650 (setq gnus-browse-mode-map (make-keymap))
651 (suppress-keymap gnus-browse-mode-map)
655 " " gnus-browse-read-group
656 "=" gnus-browse-select-group
657 "n" gnus-browse-next-group
658 "p" gnus-browse-prev-group
659 "\177" gnus-browse-prev-group
660 [delete] gnus-browse-prev-group
661 "N" gnus-browse-next-group
662 "P" gnus-browse-prev-group
663 "\M-n" gnus-browse-next-group
664 "\M-p" gnus-browse-prev-group
665 "\r" gnus-browse-select-group
666 "u" gnus-browse-unsubscribe-current-group
671 "d" gnus-browse-describe-group
672 "\C-c\C-c" gnus-browse-exit
673 "?" gnus-browse-describe-briefly
675 "\C-c\C-i" gnus-info-find-node
676 "\C-c\C-b" gnus-bug))
678 (defun gnus-browse-make-menu-bar ()
679 (gnus-turn-off-edit-menu 'browse)
680 (unless (boundp 'gnus-browse-menu)
682 gnus-browse-menu gnus-browse-mode-map ""
684 ["Subscribe" gnus-browse-unsubscribe-current-group t]
685 ["Read" gnus-browse-read-group t]
686 ["Select" gnus-browse-select-group t]
687 ["Describe" gnus-browse-describe-group t]
688 ["Next" gnus-browse-next-group t]
689 ["Prev" gnus-browse-prev-group t]
690 ["Exit" gnus-browse-exit t]))
691 (gnus-run-hooks 'gnus-browse-menu-hook)))
693 (defvar gnus-browse-current-method nil)
694 (defvar gnus-browse-return-buffer nil)
696 (defvar gnus-browse-buffer "*Gnus Browse Server*")
698 (defun gnus-browse-foreign-server (server &optional return-buffer)
699 "Browse the server SERVER."
700 (setq gnus-browse-current-method (gnus-server-to-method server))
701 (setq gnus-browse-return-buffer return-buffer)
702 (let* ((method gnus-browse-current-method)
703 (orig-select-method gnus-select-method)
704 (gnus-select-method method)
706 (gnus-message 5 "Connecting to %s..." (nth 1 method))
708 ((not (gnus-check-server method))
710 1 "Unable to contact server %s: %s" (nth 1 method)
711 (gnus-status-message method))
715 (gnus-message 6 "Reading active file...")
716 (gnus-request-list method)
717 (gnus-message 6 "Reading active file...done")))
719 1 "Couldn't request list: %s" (gnus-status-message method))
722 (with-current-buffer nntp-server-buffer
723 (let ((cur (current-buffer)))
724 (goto-char (point-min))
725 (unless (string= gnus-ignored-newsgroups "")
726 (delete-matching-lines gnus-ignored-newsgroups))
727 ;; We treat NNTP as a special case to avoid problems with
728 ;; garbage group names like `"foo' that appear in some badly
729 ;; managed active files. -jh.
730 (if (eq (car method) 'nntp)
737 (skip-chars-forward "^ \t")
739 (let ((last (read cur)))
740 (cons (read cur) last)))
746 (if (eq (char-after) ?\")
748 (let ((p (point)) (name ""))
749 (skip-chars-forward "^ \t\\\\")
750 (setq name (buffer-substring p (point)))
751 (while (eq (char-after) ?\\)
752 (setq p (1+ (point)))
754 (skip-chars-forward "^ \t\\\\")
755 (setq name (concat name (buffer-substring
758 (let ((last (read cur)))
759 (cons (read cur) last)))
762 (setq groups (sort groups
764 (string< (car l1) (car l2)))))
765 (if gnus-server-browse-in-group-buffer
766 (let* ((gnus-select-method orig-select-method)
767 (gnus-group-listed-groups
768 (mapcar (lambda (group)
770 (gnus-group-prefixed-name
771 (car group) method)))
772 (gnus-set-active name (cdr group))
775 (gnus-configure-windows 'group)
776 (funcall gnus-group-prepare-function
777 gnus-level-killed 'ignore 1 'ignore))
778 (gnus-get-buffer-create gnus-browse-buffer)
780 (gnus-carpal-setup-buffer 'browse))
781 (gnus-configure-windows 'browse)
782 (buffer-disable-undo)
783 (let ((buffer-read-only nil))
786 (setq mode-line-buffer-identification
789 "Gnus: %%b {%s:%s}" (car method) (cadr method))))
790 (let ((buffer-read-only nil)
792 (prefix (let ((gnus-select-method orig-select-method))
793 (gnus-group-prefixed-name "" method))))
794 (while (setq group (pop groups))
795 (gnus-add-text-properties
799 (format "%c%7d: %s\n"
801 (if (string= prefix "")
802 (gnus-group-level (setq name (car group)))
804 (concat prefix (setq name (car group)))))))
806 ((<= level gnus-level-subscribed) ? )
807 ((<= level gnus-level-unsubscribed) ?U)
808 ((= level gnus-level-zombie) ?Z)
810 (max 0 (- (1+ (cddr group)) (cadr group)))
811 ;; Don't decode if name is ASCII
812 (if (and (fboundp 'detect-coding-string)
813 (eq (detect-coding-string name t) 'undecided))
815 (decode-coding-string
817 (inline (gnus-group-name-charset method name)))))))
818 (list 'gnus-group name)
820 (switch-to-buffer (current-buffer)))
821 (goto-char (point-min))
822 (gnus-group-position-point)
823 (gnus-message 5 "Connecting to %s...done" (nth 1 method))
826 (defun gnus-browse-mode ()
827 "Major mode for browsing a foreign server.
829 All normal editing commands are switched off.
831 \\<gnus-browse-mode-map>
832 The only things you can do in this buffer is
834 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
835 The group will be inserted into the group buffer upon exit from this
838 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
840 3) `\\[gnus-browse-exit]' to return to the group buffer."
842 (kill-all-local-variables)
843 (when (gnus-visual-p 'browse-menu 'menu)
844 (gnus-browse-make-menu-bar))
845 (gnus-simplify-mode-line)
846 (setq major-mode 'gnus-browse-mode)
847 (setq mode-name "Browse Server")
848 (setq mode-line-process nil)
849 (use-local-map gnus-browse-mode-map)
850 (buffer-disable-undo)
851 (setq truncate-lines t)
852 (gnus-set-default-directory)
853 (setq buffer-read-only t)
854 (gnus-run-hooks 'gnus-browse-mode-hook))
856 (defun gnus-browse-read-group (&optional no-article)
857 "Enter the group at the current line."
859 (let ((group (gnus-browse-group-name)))
860 (if (or (not (gnus-get-info group))
861 (gnus-ephemeral-group-p group))
862 (unless (gnus-group-read-ephemeral-group
863 group gnus-browse-current-method nil
864 (cons (current-buffer) 'browse))
865 (error "Couldn't enter %s" group))
866 (unless (gnus-group-read-group nil no-article group)
867 (error "Couldn't enter %s" group)))))
869 (defun gnus-browse-select-group ()
870 "Select the current group."
872 (gnus-browse-read-group 'no))
874 (defun gnus-browse-next-group (n)
875 "Go to the next group."
879 (gnus-group-position-point)))
881 (defun gnus-browse-prev-group (n)
882 "Go to the next group."
884 (gnus-browse-next-group (- n)))
886 (defun gnus-browse-unsubscribe-current-group (arg)
887 "(Un)subscribe to the next ARG groups."
890 (error "No group at current line"))
891 (let ((ward (if (< arg 0) -1 1))
893 (while (and (> arg 0)
895 (gnus-browse-unsubscribe-group)
896 (zerop (gnus-browse-next-group ward)))
898 (gnus-group-position-point)
900 (gnus-message 7 "No more newsgroups"))
903 (defun gnus-browse-group-name ()
906 (let ((name (get-text-property (point) 'gnus-group)))
907 (when (re-search-forward ": \\(.*\\)$" (point-at-eol) t)
908 (concat (gnus-method-to-server-name gnus-browse-current-method) ":"
910 (match-string-no-properties 1)))))))
912 (defun gnus-browse-describe-group (group)
913 "Describe the current group."
914 (interactive (list (gnus-browse-group-name)))
915 (gnus-group-describe-group nil group))
917 (defun gnus-browse-unsubscribe-group ()
918 "Toggle subscription of the current group in the browse buffer."
920 (buffer-read-only nil)
924 ;; If this group it killed, then we want to subscribe it.
925 (unless (eq (char-after) ? )
927 (setq group (gnus-browse-group-name))
928 (when (gnus-server-equal gnus-browse-current-method "native")
929 (setq group (gnus-group-real-name group)))
932 ;; Make sure the group has been properly removed before we
934 (gnus-kill-ephemeral-group group)
935 (gnus-group-change-level
936 (list t group gnus-level-default-subscribed
937 nil nil (if (gnus-server-equal
938 gnus-browse-current-method "native")
940 (gnus-method-simplify
941 gnus-browse-current-method)))
942 gnus-level-default-subscribed (gnus-group-level group)
943 (and (car (nth 1 gnus-newsrc-alist))
944 (gnus-group-entry (car (nth 1 gnus-newsrc-alist))))
948 (gnus-group-change-level
949 group gnus-level-unsubscribed gnus-level-default-subscribed)
954 (defun gnus-browse-exit ()
955 "Quit browsing and return to the group buffer."
957 (when (eq major-mode 'gnus-browse-mode)
958 (gnus-kill-buffer (current-buffer)))
959 ;; Insert the newly subscribed groups in the group buffer.
961 (set-buffer gnus-group-buffer)
962 (gnus-group-list-groups nil))
963 (if gnus-browse-return-buffer
964 (gnus-configure-windows 'server 'force)
965 (gnus-configure-windows 'group 'force)))
967 (defun gnus-browse-describe-briefly ()
968 "Give a one line description of the group mode commands."
971 (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")))
973 (defun gnus-server-regenerate-server ()
974 "Issue a command to the server to regenerate all its data structures."
976 (let ((server (gnus-server-server-name)))
978 (error "No server on the current line"))
980 (gnus-get-function (gnus-server-to-method server)
983 (error "This backend doesn't support regeneration")))
984 (gnus-message 5 "Requesting regeneration of %s..." server)
985 (unless (gnus-open-server server)
986 (error "Couldn't open server"))
987 (if (gnus-request-regenerate server)
988 (gnus-message 5 "Requesting regeneration of %s...done" server)
989 (gnus-message 5 "Couldn't regenerate %s" server))))
993 ;;; gnus-srvr.el ends here