1 ;;; gnus-srvr.el --- virtual server support for Gnus
2 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
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:
59 :group 'gnus-server-visual
62 (defcustom gnus-server-mode-line-format "Gnus: %%b"
63 "The format specification for the server mode line."
64 :group 'gnus-server-visual
67 (defcustom gnus-server-browse-in-group-buffer nil
68 "Whether server browsing should take place in the group buffer.
69 If nil, a faster, but more primitive, buffer is used instead."
70 :group 'gnus-server-visual
73 ;;; Internal variables.
75 (defvar gnus-inserted-opened-servers nil)
77 (defvar gnus-server-line-format-alist
78 `((?h gnus-tmp-how ?s)
80 (?w gnus-tmp-where ?s)
81 (?s gnus-tmp-status ?s)
82 (?a gnus-tmp-agent ?s)))
84 (defvar gnus-server-mode-line-format-alist
85 `((?S gnus-tmp-news-server ?s)
86 (?M gnus-tmp-news-method ?s)
87 (?u gnus-tmp-user-defined ?s)))
89 (defvar gnus-server-line-format-spec nil)
90 (defvar gnus-server-mode-line-format-spec nil)
91 (defvar gnus-server-killed-servers nil)
93 (defvar gnus-server-mode-map)
95 (defvar gnus-server-menu-hook nil
96 "*Hook run after the creation of the server mode menu.")
98 (defun gnus-server-make-menu-bar ()
99 (gnus-turn-off-edit-menu 'server)
100 (unless (boundp 'gnus-server-server-menu)
102 gnus-server-server-menu gnus-server-mode-map ""
104 ["Add" gnus-server-add-server t]
105 ["Browse" gnus-server-read-server t]
106 ["Scan" gnus-server-scan-server t]
107 ["List" gnus-server-list-servers t]
108 ["Kill" gnus-server-kill-server t]
109 ["Yank" gnus-server-yank-server t]
110 ["Copy" gnus-server-copy-server t]
111 ["Edit" gnus-server-edit-server t]
112 ["Regenerate" gnus-server-regenerate-server t]
113 ["Exit" gnus-server-exit t]))
116 gnus-server-connections-menu gnus-server-mode-map ""
118 ["Open" gnus-server-open-server t]
119 ["Close" gnus-server-close-server t]
120 ["Deny" gnus-server-deny-server t]
122 ["Open All" gnus-server-open-all-servers t]
123 ["Close All" gnus-server-close-all-servers t]
124 ["Reset All" gnus-server-remove-denials t]))
126 (gnus-run-hooks 'gnus-server-menu-hook)))
128 (defvar gnus-server-mode-map nil)
129 (put 'gnus-server-mode 'mode-class 'special)
131 (unless gnus-server-mode-map
132 (setq gnus-server-mode-map (make-sparse-keymap))
133 (suppress-keymap gnus-server-mode-map)
135 (gnus-define-keys gnus-server-mode-map
136 " " gnus-server-read-server-in-server-buffer
137 "\r" gnus-server-read-server
138 gnus-mouse-2 gnus-server-pick-server
140 "l" gnus-server-list-servers
141 "k" gnus-server-kill-server
142 "y" gnus-server-yank-server
143 "c" gnus-server-copy-server
144 "a" gnus-server-add-server
145 "e" gnus-server-edit-server
146 "s" gnus-server-scan-server
148 "O" gnus-server-open-server
149 "\M-o" gnus-server-open-all-servers
150 "C" gnus-server-close-server
151 "\M-c" gnus-server-close-all-servers
152 "D" gnus-server-deny-server
153 "R" gnus-server-remove-denials
158 "g" gnus-server-regenerate-server
160 "\C-c\C-i" gnus-info-find-node
161 "\C-c\C-b" gnus-bug))
163 (defface gnus-server-agent-face
164 '((((class color) (background light)) (:foreground "PaleTurquoise" :bold t))
165 (((class color) (background dark)) (:foreground "PaleTurquoise" :bold t))
167 "Face used for displaying AGENTIZED servers"
168 :group 'gnus-server-visual)
170 (defface gnus-server-opened-face
171 '((((class color) (background light)) (:foreground "Green3" :bold t))
172 (((class color) (background dark)) (:foreground "Green1" :bold t))
174 "Face used for displaying OPENED servers"
175 :group 'gnus-server-visual)
177 (defface gnus-server-closed-face
178 '((((class color) (background light)) (:foreground "Steel Blue" :italic t))
179 (((class color) (background dark))
180 (:foreground "Light Steel Blue" :italic t))
182 "Face used for displaying CLOSED servers"
183 :group 'gnus-server-visual)
185 (defface gnus-server-denied-face
186 '((((class color) (background light)) (:foreground "Red" :bold t))
187 (((class color) (background dark)) (:foreground "Pink" :bold t))
188 (t (:inverse-video t :bold t)))
189 "Face used for displaying DENIED servers"
190 :group 'gnus-server-visual)
192 (defcustom gnus-server-agent-face 'gnus-server-agent-face
193 "Face name to use on AGENTIZED servers."
194 :group 'gnus-server-visual
197 (defcustom gnus-server-opened-face 'gnus-server-opened-face
198 "Face name to use on OPENED servers."
199 :group 'gnus-server-visual
202 (defcustom gnus-server-closed-face 'gnus-server-closed-face
203 "Face name to use on CLOSED servers."
204 :group 'gnus-server-visual
207 (defcustom gnus-server-denied-face 'gnus-server-denied-face
208 "Face name to use on DENIED servers."
209 :group 'gnus-server-visual
212 (defvar gnus-server-font-lock-keywords
214 '("(\\(agent\\))" 1 gnus-server-agent-face)
215 '("(\\(opened\\))" 1 gnus-server-opened-face)
216 '("(\\(closed\\))" 1 gnus-server-closed-face)
217 '("(\\(denied\\))" 1 gnus-server-denied-face)))
219 (defun gnus-server-mode ()
220 "Major mode for listing and editing servers.
222 All normal editing commands are switched off.
223 \\<gnus-server-mode-map>
224 For more in-depth information on this mode, read the manual
225 \(`\\[gnus-info-find-node]').
227 The following commands are available:
229 \\{gnus-server-mode-map}"
231 (when (gnus-visual-p 'server-menu 'menu)
232 (gnus-server-make-menu-bar))
233 (kill-all-local-variables)
234 (gnus-simplify-mode-line)
235 (setq major-mode 'gnus-server-mode)
236 (setq mode-name "Server")
237 (gnus-set-default-directory)
238 (setq mode-line-process nil)
239 (use-local-map gnus-server-mode-map)
240 (buffer-disable-undo)
241 (setq truncate-lines t)
242 (setq buffer-read-only t)
243 (if (featurep 'xemacs)
244 (put 'gnus-server-mode 'font-lock-defaults '(gnus-server-font-lock-keywords t))
245 (set (make-local-variable 'font-lock-defaults)
246 '(gnus-server-font-lock-keywords t)))
247 (gnus-run-hooks 'gnus-server-mode-hook))
249 (defun gnus-server-insert-server-line (gnus-tmp-name method)
250 (let* ((gnus-tmp-how (car method))
251 (gnus-tmp-where (nth 1 method))
252 (elem (assoc method gnus-opened-servers))
254 (if (eq (nth 1 elem) 'denied)
257 (if (or (gnus-server-opened method)
258 (eq (nth 1 elem) 'ok))
261 ((error) "(error)"))))
262 (gnus-tmp-agent (if (and gnus-agent
264 gnus-agent-covered-methods))
268 (gnus-add-text-properties
272 (eval gnus-server-line-format-spec))
273 (list 'gnus-server (intern gnus-tmp-name)))))
275 (defun gnus-enter-server-buffer ()
276 "Set up the server buffer."
277 (gnus-server-setup-buffer)
278 (gnus-configure-windows 'server)
279 (gnus-server-prepare))
281 (defun gnus-server-setup-buffer ()
282 "Initialize the server buffer."
283 (unless (get-buffer gnus-server-buffer)
285 (set-buffer (gnus-get-buffer-create gnus-server-buffer))
288 (gnus-carpal-setup-buffer 'server)))))
290 (defun gnus-server-prepare ()
291 (gnus-set-format 'server-mode)
292 (gnus-set-format 'server t)
293 (let ((alist gnus-server-alist)
294 (buffer-read-only nil)
295 (opened gnus-opened-servers)
298 (setq gnus-inserted-opened-servers nil)
299 ;; First we do the real list of servers.
301 (unless (member (cdar alist) done)
302 (push (cdar alist) done)
303 (cdr (setq server (pop alist)))
304 (when (and server (car server) (cdr server))
305 (gnus-server-insert-server-line (car server) (cdr server))))
306 (when (member (cdar alist) done)
308 ;; Then we insert the list of servers that have been opened in
311 (when (and (not (member (caar opened) done))
312 ;; Just ignore ephemeral servers.
313 (not (member (caar opened) gnus-ephemeral-servers)))
314 (push (caar opened) done)
315 (gnus-server-insert-server-line
316 (setq op-ser (format "%s:%s" (caaar opened) (nth 1 (caar opened))))
318 (push (list op-ser (caar opened)) gnus-inserted-opened-servers))
319 (setq opened (cdr opened))))
320 (goto-char (point-min))
321 (gnus-server-position-point))
323 (defun gnus-server-server-name ()
324 (let ((server (get-text-property (gnus-point-at-bol) 'gnus-server)))
325 (and server (symbol-name server))))
327 (defalias 'gnus-server-position-point 'gnus-goto-colon)
329 (defconst gnus-server-edit-buffer "*Gnus edit server*")
331 (defun gnus-server-update-server (server)
333 (set-buffer gnus-server-buffer)
334 (let* ((buffer-read-only nil)
335 (entry (assoc server gnus-server-alist))
336 (oentry (assoc (gnus-server-to-method server)
337 gnus-opened-servers)))
340 (concat "(gnus-server-set-info \"" server "\" '"
341 (prin1-to-string (cdr entry)) ")\n")))
342 (when (or entry oentry)
343 ;; Buffer may be narrowed.
346 (when (gnus-server-goto-server server)
349 (gnus-server-insert-server-line (car entry) (cdr entry))
350 (gnus-server-insert-server-line
351 (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
353 (gnus-server-position-point))))))
355 (defun gnus-server-set-info (server info)
356 ;; Enter a select method into the virtual server alist.
357 (when (and server info)
359 (concat "(gnus-server-set-info \"" server "\" '"
360 (prin1-to-string info) ")"))
361 (let* ((server (nth 1 info))
362 (entry (assoc server gnus-server-alist)))
363 (if entry (setcdr entry info)
364 (setq gnus-server-alist
365 (nconc gnus-server-alist (list (cons server info))))))))
367 ;;; Interactive server functions.
369 (defun gnus-server-kill-server (server)
370 "Kill the server on the current line."
371 (interactive (list (gnus-server-server-name)))
372 (unless (gnus-server-goto-server server)
373 (if server (error "No such server: %s" server)
374 (error "No server on the current line")))
375 (unless (assoc server gnus-server-alist)
376 (error "Read-only server %s" server))
378 (let ((buffer-read-only nil))
380 (push (assoc server gnus-server-alist) gnus-server-killed-servers)
381 (setq gnus-server-alist (delq (car gnus-server-killed-servers)
383 (let ((groups (gnus-groups-from-server server)))
386 (format "Kill all %s groups from this server? "
388 (dolist (group groups)
389 (setq gnus-newsrc-alist
390 (delq (assoc group gnus-newsrc-alist)
392 (when gnus-group-change-level-function
393 (funcall gnus-group-change-level-function
394 group gnus-level-killed 3)))))
395 (gnus-server-position-point))
397 (defun gnus-server-yank-server ()
398 "Yank the previously killed server."
400 (unless gnus-server-killed-servers
401 (error "No killed servers to be yanked"))
402 (let ((alist gnus-server-alist)
403 (server (gnus-server-server-name))
404 (killed (car gnus-server-killed-servers)))
406 (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
407 (if (string= server (caar gnus-server-alist))
408 (push killed gnus-server-alist)
409 (while (and (cdr alist)
410 (not (string= server (caadr alist))))
411 (setq alist (cdr alist)))
413 (setcdr alist (cons killed (cdr alist)))
414 (setq gnus-server-alist (list killed)))))
415 (gnus-server-update-server (car killed))
416 (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
417 (gnus-server-position-point)))
419 (defun gnus-server-exit ()
420 "Return to the group buffer."
422 (gnus-run-hooks 'gnus-server-exit-hook)
423 (kill-buffer (current-buffer))
424 (gnus-configure-windows 'group t))
426 (defun gnus-server-list-servers ()
427 "List all available servers."
429 (let ((cur (gnus-server-server-name)))
430 (gnus-server-prepare)
431 (if cur (gnus-server-goto-server cur)
432 (goto-char (point-max))
434 (gnus-server-position-point)))
436 (defun gnus-server-set-status (method status)
437 "Make METHOD have STATUS."
438 (let ((entry (assoc method gnus-opened-servers)))
440 (setcar (cdr entry) status)
441 (push (list method status) gnus-opened-servers))))
443 (defun gnus-opened-servers-remove (method)
444 "Remove METHOD from the list of opened servers."
445 (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
446 gnus-opened-servers)))
448 (defun gnus-server-open-server (server)
449 "Force an open of SERVER."
450 (interactive (list (gnus-server-server-name)))
451 (let ((method (gnus-server-to-method server)))
453 (error "No such server: %s" server))
454 (gnus-server-set-status method 'ok)
456 (or (gnus-open-server method)
457 (progn (message "Couldn't open %s" server) nil))
458 (gnus-server-update-server server)
459 (gnus-server-position-point))))
461 (defun gnus-server-open-all-servers ()
464 (let ((servers gnus-inserted-opened-servers))
466 (gnus-server-open-server (car (pop servers))))))
468 (defun gnus-server-close-server (server)
470 (interactive (list (gnus-server-server-name)))
471 (let ((method (gnus-server-to-method server)))
473 (error "No such server: %s" server))
474 (gnus-server-set-status method 'closed)
476 (gnus-close-server method)
477 (gnus-server-update-server server)
478 (gnus-server-position-point))))
480 (defun gnus-server-close-all-servers ()
483 (dolist (server gnus-inserted-opened-servers)
484 (gnus-server-close-server (car server))))
486 (defun gnus-server-deny-server (server)
487 "Make sure SERVER will never be attempted opened."
488 (interactive (list (gnus-server-server-name)))
489 (let ((method (gnus-server-to-method server)))
491 (error "No such server: %s" server))
492 (gnus-server-set-status method 'denied))
493 (gnus-server-update-server server)
494 (gnus-server-position-point)
497 (defun gnus-server-remove-denials ()
498 "Make all denied servers into closed servers."
500 (dolist (server gnus-opened-servers)
501 (when (eq (nth 1 server) 'denied)
502 (setcar (nthcdr 1 server) 'closed)))
503 (gnus-server-list-servers))
505 (defun gnus-server-copy-server (from to)
508 (or (gnus-server-server-name)
509 (error "No server on the current line"))
510 (read-string "Copy to: ")))
512 (error "No server on current line"))
513 (unless (and to (not (string= to "")))
514 (error "No name to copy to"))
515 (when (assoc to gnus-server-alist)
516 (error "%s already exists" to))
517 (unless (gnus-server-to-method from)
518 (error "%s: no such server" from))
519 (let ((to-entry (cons from (gnus-copy-sequence
520 (gnus-server-to-method from)))))
522 (setcar (nthcdr 2 to-entry) to)
523 (push to-entry gnus-server-killed-servers)
524 (gnus-server-yank-server)))
526 (defun gnus-server-add-server (how where)
528 (list (intern (completing-read "Server method: "
529 gnus-valid-select-methods nil t))
530 (read-string "Server name: ")))
531 (when (assq where gnus-server-alist)
532 (error "Server with that name already defined"))
533 (push (list where how where) gnus-server-killed-servers)
534 (gnus-server-yank-server))
536 (defun gnus-server-goto-server (server)
537 "Jump to a server line."
539 (list (completing-read "Goto server: " gnus-server-alist nil t)))
540 (let ((to (text-property-any (point-min) (point-max)
541 'gnus-server (intern server))))
544 (gnus-server-position-point))))
546 (defun gnus-server-edit-server (server)
547 "Edit the server on the current line."
548 (interactive (list (gnus-server-server-name)))
550 (error "No server on current line"))
551 (unless (assoc server gnus-server-alist)
552 (error "This server can't be edited"))
553 (let ((info (cdr (assoc server gnus-server-alist))))
554 (gnus-close-server info)
556 info "Editing the server."
558 (gnus-server-set-info ,server form)
559 (gnus-server-list-servers)
560 (gnus-server-position-point)))))
562 (defun gnus-server-scan-server (server)
563 "Request a scan from the current server."
564 (interactive (list (gnus-server-server-name)))
565 (let ((method (gnus-server-to-method server)))
566 (if (not (gnus-get-function method 'request-scan))
567 (error "Server %s can't scan" (car method))
568 (gnus-message 3 "Scanning %s..." server)
569 (gnus-request-scan nil method)
570 (gnus-message 3 "Scanning %s...done" server))))
572 (defun gnus-server-read-server-in-server-buffer (server)
573 "Browse a server in server buffer."
574 (interactive (list (gnus-server-server-name)))
575 (let (gnus-server-browse-in-group-buffer)
576 (gnus-server-read-server server)))
578 (defun gnus-server-read-server (server)
580 (interactive (list (gnus-server-server-name)))
581 (let ((buf (current-buffer)))
583 (gnus-browse-foreign-server server buf)
586 (gnus-server-update-server (gnus-server-server-name))
587 (gnus-server-position-point)))))
589 (defun gnus-server-pick-server (e)
592 (gnus-server-read-server (gnus-server-server-name)))
596 ;;; Browse Server Mode
599 (defvar gnus-browse-menu-hook nil
600 "*Hook run after the creation of the browse mode menu.")
602 (defvar gnus-browse-mode-hook nil)
603 (defvar gnus-browse-mode-map nil)
604 (put 'gnus-browse-mode 'mode-class 'special)
606 (unless gnus-browse-mode-map
607 (setq gnus-browse-mode-map (make-keymap))
608 (suppress-keymap gnus-browse-mode-map)
612 " " gnus-browse-read-group
613 "=" gnus-browse-select-group
614 "n" gnus-browse-next-group
615 "p" gnus-browse-prev-group
616 "\177" gnus-browse-prev-group
617 [delete] gnus-browse-prev-group
618 "N" gnus-browse-next-group
619 "P" gnus-browse-prev-group
620 "\M-n" gnus-browse-next-group
621 "\M-p" gnus-browse-prev-group
622 "\r" gnus-browse-select-group
623 "u" gnus-browse-unsubscribe-current-group
628 "\C-c\C-c" gnus-browse-exit
629 "?" gnus-browse-describe-briefly
631 "\C-c\C-i" gnus-info-find-node
632 "\C-c\C-b" gnus-bug))
634 (defun gnus-browse-make-menu-bar ()
635 (gnus-turn-off-edit-menu 'browse)
636 (unless (boundp 'gnus-browse-menu)
638 gnus-browse-menu gnus-browse-mode-map ""
640 ["Subscribe" gnus-browse-unsubscribe-current-group t]
641 ["Read" gnus-browse-read-group t]
642 ["Select" gnus-browse-select-group t]
643 ["Next" gnus-browse-next-group t]
644 ["Prev" gnus-browse-prev-group t]
645 ["Exit" gnus-browse-exit t]))
646 (gnus-run-hooks 'gnus-browse-menu-hook)))
648 (defvar gnus-browse-current-method nil)
649 (defvar gnus-browse-return-buffer nil)
651 (defvar gnus-browse-buffer "*Gnus Browse Server*")
653 (defun gnus-browse-foreign-server (server &optional return-buffer)
654 "Browse the server SERVER."
655 (setq gnus-browse-current-method (gnus-server-to-method server))
656 (setq gnus-browse-return-buffer return-buffer)
657 (let* ((method gnus-browse-current-method)
658 (orig-select-method gnus-select-method)
659 (gnus-select-method method)
661 (gnus-message 5 "Connecting to %s..." (nth 1 method))
663 ((not (gnus-check-server method))
665 1 "Unable to contact server %s: %s" (nth 1 method)
666 (gnus-status-message method))
670 (gnus-message 6 "Reading active file...")
671 (gnus-request-list method)
672 (gnus-message 6 "Reading active file...done")))
674 1 "Couldn't request list: %s" (gnus-status-message method))
678 (set-buffer nntp-server-buffer)
679 (let ((cur (current-buffer)))
680 (goto-char (point-min))
681 (unless (string= gnus-ignored-newsgroups "")
682 (delete-matching-lines gnus-ignored-newsgroups))
686 (if (eq (char-after) ?\")
688 (let ((p (point)) (name ""))
689 (skip-chars-forward "^ \t\\\\")
690 (setq name (buffer-substring p (point)))
691 (while (eq (char-after) ?\\)
692 (setq p (1+ (point)))
694 (skip-chars-forward "^ \t\\\\")
695 (setq name (concat name (buffer-substring
698 (let ((last (read cur)))
699 (cons (read cur) last)))
702 (setq groups (sort groups
704 (string< (car l1) (car l2)))))
705 (if gnus-server-browse-in-group-buffer
706 (let* ((gnus-select-method orig-select-method)
707 (gnus-group-listed-groups
708 (mapcar (lambda (group)
710 (gnus-group-prefixed-name
711 (car group) method)))
712 (gnus-set-active name (cdr group))
715 (gnus-configure-windows 'group)
716 (funcall gnus-group-prepare-function
717 gnus-level-killed 'ignore 1 'ignore))
718 (gnus-get-buffer-create gnus-browse-buffer)
720 (gnus-carpal-setup-buffer 'browse))
721 (gnus-configure-windows 'browse)
722 (buffer-disable-undo)
723 (let ((buffer-read-only nil))
726 (setq mode-line-buffer-identification
729 "Gnus: %%b {%s:%s}" (car method) (cadr method))))
730 (let ((buffer-read-only nil) charset
731 (prefix (let ((gnus-select-method orig-select-method))
732 (gnus-group-prefixed-name "" method))))
734 (setq group (car groups))
735 (setq charset (gnus-group-name-charset method (car group)))
736 (gnus-add-text-properties
740 (format "%c%7d: %s\n"
741 (let ((level (gnus-group-level (concat prefix (car group)))))
743 ((<= level gnus-level-subscribed) ? )
744 ((<= level gnus-level-unsubscribed) ?U)
745 ((= level gnus-level-zombie) ?Z)
747 (max 0 (- (1+ (cddr group)) (cadr group)))
748 (gnus-group-name-decode (car group) charset))))
749 (list 'gnus-group (car group)))
750 (setq groups (cdr groups))))
751 (switch-to-buffer (current-buffer)))
752 (goto-char (point-min))
753 (gnus-group-position-point)
754 (gnus-message 5 "Connecting to %s...done" (nth 1 method))
757 (defun gnus-browse-mode ()
758 "Major mode for browsing a foreign server.
760 All normal editing commands are switched off.
762 \\<gnus-browse-mode-map>
763 The only things you can do in this buffer is
765 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
766 The group will be inserted into the group buffer upon exit from this
769 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
771 3) `\\[gnus-browse-exit]' to return to the group buffer."
773 (kill-all-local-variables)
774 (when (gnus-visual-p 'browse-menu 'menu)
775 (gnus-browse-make-menu-bar))
776 (gnus-simplify-mode-line)
777 (setq major-mode 'gnus-browse-mode)
778 (setq mode-name "Browse Server")
779 (setq mode-line-process nil)
780 (use-local-map gnus-browse-mode-map)
781 (buffer-disable-undo)
782 (setq truncate-lines t)
783 (gnus-set-default-directory)
784 (setq buffer-read-only t)
785 (gnus-run-hooks 'gnus-browse-mode-hook))
787 (defun gnus-browse-read-group (&optional no-article)
788 "Enter the group at the current line."
790 (let ((group (gnus-browse-group-name)))
791 (if (or (not (gnus-get-info group))
792 (gnus-ephemeral-group-p group))
793 (unless (gnus-group-read-ephemeral-group
794 (gnus-group-real-name group) gnus-browse-current-method nil
795 (cons (current-buffer) 'browse))
796 (error "Couldn't enter %s" group))
797 (unless (gnus-group-read-group nil no-article group)
798 (error "Couldn't enter %s" group)))))
800 (defun gnus-browse-select-group ()
801 "Select the current group."
803 (gnus-browse-read-group 'no))
805 (defun gnus-browse-next-group (n)
806 "Go to the next group."
810 (gnus-group-position-point)))
812 (defun gnus-browse-prev-group (n)
813 "Go to the next group."
815 (gnus-browse-next-group (- n)))
817 (defun gnus-browse-unsubscribe-current-group (arg)
818 "(Un)subscribe to the next ARG groups."
821 (error "No group at current line"))
822 (let ((ward (if (< arg 0) -1 1))
824 (while (and (> arg 0)
826 (gnus-browse-unsubscribe-group)
827 (zerop (gnus-browse-next-group ward)))
829 (gnus-group-position-point)
831 (gnus-message 7 "No more newsgroups"))
834 (defun gnus-browse-group-name ()
837 (let ((name (get-text-property (point) 'gnus-group)))
838 (when (re-search-forward ": \\(.*\\)$" (gnus-point-at-eol) t)
839 (gnus-group-prefixed-name
841 (match-string-no-properties 1))
842 gnus-browse-current-method)))))
844 (defun gnus-browse-unsubscribe-group ()
845 "Toggle subscription of the current group in the browse buffer."
847 (buffer-read-only nil)
851 ;; If this group it killed, then we want to subscribe it.
852 (unless (eq (char-after) ? )
854 (setq group (gnus-browse-group-name))
857 ;; (cadr (gnus-gethash group gnus-newsrc-hashtb)))
858 ;;(error "Group already subscribed"))
861 ;; Make sure the group has been properly removed before we
863 (gnus-kill-ephemeral-group group)
864 (gnus-group-change-level
865 (list t group gnus-level-default-subscribed
866 nil nil (if (gnus-server-equal
867 gnus-browse-current-method "native")
869 (gnus-method-simplify
870 gnus-browse-current-method)))
871 gnus-level-default-subscribed (gnus-group-level group)
872 (and (car (nth 1 gnus-newsrc-alist))
873 (gnus-gethash (car (nth 1 gnus-newsrc-alist))
878 (gnus-group-change-level
879 group gnus-level-unsubscribed gnus-level-default-subscribed)
884 (defun gnus-browse-exit ()
885 "Quit browsing and return to the group buffer."
887 (when (eq major-mode 'gnus-browse-mode)
888 (kill-buffer (current-buffer)))
889 ;; Insert the newly subscribed groups in the group buffer.
891 (set-buffer gnus-group-buffer)
892 (gnus-group-list-groups nil))
893 (if gnus-browse-return-buffer
894 (gnus-configure-windows 'server 'force)
895 (gnus-configure-windows 'group 'force)))
897 (defun gnus-browse-describe-briefly ()
898 "Give a one line description of the group mode commands."
901 (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")))
903 (defun gnus-server-regenerate-server ()
904 "Issue a command to the server to regenerate all its data structures."
906 (let ((server (gnus-server-server-name)))
908 (error "No server on the current line"))
910 (gnus-get-function (gnus-server-to-method server)
913 (error "This backend doesn't support regeneration")))
914 (gnus-message 5 "Requesting regeneration of %s..." server)
915 (unless (gnus-open-server server)
916 (error "Couldn't open server"))
917 (if (gnus-request-regenerate server)
918 (gnus-message 5 "Requesting regeneration of %s...done" server)
919 (gnus-message 5 "Couldn't regenerate %s" server))))
923 ;;; gnus-srvr.el ends here