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 (defvar gnus-server-mode-hook nil
38 "Hook run in `gnus-server-mode' buffers.")
40 (defconst gnus-server-line-format " {%(%h:%w%)} %s%a\n"
41 "Format of server lines.
42 It works along the same lines as a normal formatting string,
43 with some simple extensions.
45 The following specs are understood:
53 (defvar gnus-server-mode-line-format "Gnus: %%b"
54 "The format specification for the server mode line.")
56 (defvar gnus-server-exit-hook nil
57 "*Hook run when exiting the server buffer.")
59 (defvar gnus-server-browse-in-group-buffer t
60 "Whether browse server in group buffer.")
62 ;;; Internal variables.
64 (defvar gnus-inserted-opened-servers nil)
66 (defvar gnus-server-line-format-alist
67 `((?h gnus-tmp-how ?s)
69 (?w gnus-tmp-where ?s)
70 (?s gnus-tmp-status ?s)
71 (?a gnus-tmp-agent ?s)))
73 (defvar gnus-server-mode-line-format-alist
74 `((?S gnus-tmp-news-server ?s)
75 (?M gnus-tmp-news-method ?s)
76 (?u gnus-tmp-user-defined ?s)))
78 (defvar gnus-server-line-format-spec nil)
79 (defvar gnus-server-mode-line-format-spec nil)
80 (defvar gnus-server-killed-servers nil)
82 (defvar gnus-server-mode-map)
84 (defvar gnus-server-menu-hook nil
85 "*Hook run after the creation of the server mode menu.")
87 (defun gnus-server-make-menu-bar ()
88 (gnus-turn-off-edit-menu 'server)
89 (unless (boundp 'gnus-server-server-menu)
91 gnus-server-server-menu gnus-server-mode-map ""
93 ["Add" gnus-server-add-server t]
94 ["Browse" gnus-server-read-server t]
95 ["Scan" gnus-server-scan-server t]
96 ["List" gnus-server-list-servers t]
97 ["Kill" gnus-server-kill-server t]
98 ["Yank" gnus-server-yank-server t]
99 ["Copy" gnus-server-copy-server t]
100 ["Edit" gnus-server-edit-server t]
101 ["Regenerate" gnus-server-regenerate-server t]
102 ["Exit" gnus-server-exit t]))
105 gnus-server-connections-menu gnus-server-mode-map ""
107 ["Open" gnus-server-open-server t]
108 ["Close" gnus-server-close-server t]
109 ["Deny" gnus-server-deny-server t]
111 ["Open All" gnus-server-open-all-servers t]
112 ["Close All" gnus-server-close-all-servers t]
113 ["Reset All" gnus-server-remove-denials t]))
115 (gnus-run-hooks 'gnus-server-menu-hook)))
117 (defvar gnus-server-mode-map nil)
118 (put 'gnus-server-mode 'mode-class 'special)
120 (unless gnus-server-mode-map
121 (setq gnus-server-mode-map (make-sparse-keymap))
122 (suppress-keymap gnus-server-mode-map)
124 (gnus-define-keys gnus-server-mode-map
125 " " gnus-server-read-server-in-server-buffer
126 "\r" gnus-server-read-server
127 gnus-mouse-2 gnus-server-pick-server
129 "l" gnus-server-list-servers
130 "k" gnus-server-kill-server
131 "y" gnus-server-yank-server
132 "c" gnus-server-copy-server
133 "a" gnus-server-add-server
134 "e" gnus-server-edit-server
135 "s" gnus-server-scan-server
137 "O" gnus-server-open-server
138 "\M-o" gnus-server-open-all-servers
139 "C" gnus-server-close-server
140 "\M-c" gnus-server-close-all-servers
141 "D" gnus-server-deny-server
142 "R" gnus-server-remove-denials
147 "g" gnus-server-regenerate-server
149 "\C-c\C-i" gnus-info-find-node
150 "\C-c\C-b" gnus-bug))
152 (defun gnus-server-mode ()
153 "Major mode for listing and editing servers.
155 All normal editing commands are switched off.
156 \\<gnus-server-mode-map>
157 For more in-depth information on this mode, read the manual
158 (`\\[gnus-info-find-node]').
160 The following commands are available:
162 \\{gnus-server-mode-map}"
164 (when (gnus-visual-p 'server-menu 'menu)
165 (gnus-server-make-menu-bar))
166 (kill-all-local-variables)
167 (gnus-simplify-mode-line)
168 (setq major-mode 'gnus-server-mode)
169 (setq mode-name "Server")
170 (gnus-set-default-directory)
171 (setq mode-line-process nil)
172 (use-local-map gnus-server-mode-map)
173 (buffer-disable-undo)
174 (setq truncate-lines t)
175 (setq buffer-read-only t)
176 (gnus-run-hooks 'gnus-server-mode-hook))
178 (defun gnus-server-insert-server-line (gnus-tmp-name method)
179 (let* ((gnus-tmp-how (car method))
180 (gnus-tmp-where (nth 1 method))
181 (elem (assoc method gnus-opened-servers))
182 (gnus-tmp-status (cond ((eq (nth 1 elem) 'denied)
184 ((or (gnus-server-opened method)
185 (eq (nth 1 elem) 'ok))
189 (gnus-tmp-agent (if (and gnus-agent
191 gnus-agent-covered-methods))
195 (gnus-add-text-properties
199 (eval gnus-server-line-format-spec))
200 (list 'gnus-server (intern gnus-tmp-name)))))
202 (defun gnus-enter-server-buffer ()
203 "Set up the server buffer."
204 (gnus-server-setup-buffer)
205 (gnus-configure-windows 'server)
206 (gnus-server-prepare))
208 (defun gnus-server-setup-buffer ()
209 "Initialize the server buffer."
210 (unless (get-buffer gnus-server-buffer)
212 (set-buffer (gnus-get-buffer-create gnus-server-buffer))
215 (gnus-carpal-setup-buffer 'server)))))
217 (defun gnus-server-prepare ()
218 (gnus-set-format 'server-mode)
219 (gnus-set-format 'server t)
220 (let ((alist gnus-server-alist)
221 (buffer-read-only nil)
222 (opened gnus-opened-servers)
225 (setq gnus-inserted-opened-servers nil)
226 ;; First we do the real list of servers.
228 (unless (member (cdar alist) done)
229 (push (cdar alist) done)
230 (cdr (setq server (pop alist)))
231 (when (and server (car server) (cdr server))
232 (gnus-server-insert-server-line (car server) (cdr server))))
233 (when (member (cdar alist) done)
235 ;; Then we insert the list of servers that have been opened in
238 (when (and (not (member (caar opened) done))
239 ;; Just ignore ephemeral servers.
240 (not (member (caar opened) gnus-ephemeral-servers)))
241 (push (caar opened) done)
242 (gnus-server-insert-server-line
243 (setq op-ser (format "%s:%s" (caaar opened) (nth 1 (caar opened))))
245 (push (list op-ser (caar opened)) gnus-inserted-opened-servers))
246 (setq opened (cdr opened))))
247 (goto-char (point-min))
248 (gnus-server-position-point))
250 (defun gnus-server-server-name ()
251 (let ((server (get-text-property (gnus-point-at-bol) 'gnus-server)))
252 (and server (symbol-name server))))
254 (defalias 'gnus-server-position-point 'gnus-goto-colon)
256 (defconst gnus-server-edit-buffer "*Gnus edit server*")
258 (defun gnus-server-update-server (server)
260 (set-buffer gnus-server-buffer)
261 (let* ((buffer-read-only nil)
262 (entry (assoc server gnus-server-alist))
263 (oentry (assoc (gnus-server-to-method server)
264 gnus-opened-servers)))
267 (concat "(gnus-server-set-info \"" server "\" '"
268 (prin1-to-string (cdr entry)) ")\n")))
269 (when (or entry oentry)
270 ;; Buffer may be narrowed.
273 (when (gnus-server-goto-server server)
276 (gnus-server-insert-server-line (car entry) (cdr entry))
277 (gnus-server-insert-server-line
278 (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
280 (gnus-server-position-point))))))
282 (defun gnus-server-set-info (server info)
283 ;; Enter a select method into the virtual server alist.
284 (when (and server info)
286 (concat "(gnus-server-set-info \"" server "\" '"
287 (prin1-to-string info) ")"))
288 (let* ((server (nth 1 info))
289 (entry (assoc server gnus-server-alist)))
290 (if entry (setcdr entry info)
291 (setq gnus-server-alist
292 (nconc gnus-server-alist (list (cons server info))))))))
294 ;;; Interactive server functions.
296 (defun gnus-server-kill-server (server)
297 "Kill the server on the current line."
298 (interactive (list (gnus-server-server-name)))
299 (unless (gnus-server-goto-server server)
300 (if server (error "No such server: %s" server)
301 (error "No server on the current line")))
302 (unless (assoc server gnus-server-alist)
303 (error "Read-only server %s" server))
305 (let ((buffer-read-only nil))
307 (push (assoc server gnus-server-alist) gnus-server-killed-servers)
308 (setq gnus-server-alist (delq (car gnus-server-killed-servers)
310 (let ((groups (gnus-groups-from-server server)))
313 (format "Kill all %s groups from this server? "
315 (dolist (group groups)
316 (setq gnus-newsrc-alist
317 (delq (assoc group gnus-newsrc-alist)
319 (when gnus-group-change-level-function
320 (funcall gnus-group-change-level-function
321 group gnus-level-killed 3)))))
322 (gnus-server-position-point))
324 (defun gnus-server-yank-server ()
325 "Yank the previously killed server."
327 (unless gnus-server-killed-servers
328 (error "No killed servers to be yanked"))
329 (let ((alist gnus-server-alist)
330 (server (gnus-server-server-name))
331 (killed (car gnus-server-killed-servers)))
333 (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
334 (if (string= server (caar gnus-server-alist))
335 (push killed gnus-server-alist)
336 (while (and (cdr alist)
337 (not (string= server (caadr alist))))
338 (setq alist (cdr alist)))
340 (setcdr alist (cons killed (cdr alist)))
341 (setq gnus-server-alist (list killed)))))
342 (gnus-server-update-server (car killed))
343 (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
344 (gnus-server-position-point)))
346 (defun gnus-server-exit ()
347 "Return to the group buffer."
349 (gnus-run-hooks 'gnus-server-exit-hook)
350 (kill-buffer (current-buffer))
351 (gnus-configure-windows 'group t))
353 (defun gnus-server-list-servers ()
354 "List all available servers."
356 (let ((cur (gnus-server-server-name)))
357 (gnus-server-prepare)
358 (if cur (gnus-server-goto-server cur)
359 (goto-char (point-max))
361 (gnus-server-position-point)))
363 (defun gnus-server-set-status (method status)
364 "Make METHOD have STATUS."
365 (let ((entry (assoc method gnus-opened-servers)))
367 (setcar (cdr entry) status)
368 (push (list method status) gnus-opened-servers))))
370 (defun gnus-opened-servers-remove (method)
371 "Remove METHOD from the list of opened servers."
372 (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
373 gnus-opened-servers)))
375 (defun gnus-server-open-server (server)
376 "Force an open of SERVER."
377 (interactive (list (gnus-server-server-name)))
378 (let ((method (gnus-server-to-method server)))
380 (error "No such server: %s" server))
381 (gnus-server-set-status method 'ok)
383 (or (gnus-open-server method)
384 (progn (message "Couldn't open %s" server) nil))
385 (gnus-server-update-server server)
386 (gnus-server-position-point))))
388 (defun gnus-server-open-all-servers ()
391 (let ((servers gnus-inserted-opened-servers))
393 (gnus-server-open-server (car (pop servers))))))
395 (defun gnus-server-close-server (server)
397 (interactive (list (gnus-server-server-name)))
398 (let ((method (gnus-server-to-method server)))
400 (error "No such server: %s" server))
401 (gnus-server-set-status method 'closed)
403 (gnus-close-server method)
404 (gnus-server-update-server server)
405 (gnus-server-position-point))))
407 (defun gnus-server-close-all-servers ()
410 (dolist (server gnus-inserted-opened-servers)
411 (gnus-server-close-server (car server))))
413 (defun gnus-server-deny-server (server)
414 "Make sure SERVER will never be attempted opened."
415 (interactive (list (gnus-server-server-name)))
416 (let ((method (gnus-server-to-method server)))
418 (error "No such server: %s" server))
419 (gnus-server-set-status method 'denied))
420 (gnus-server-update-server server)
421 (gnus-server-position-point)
424 (defun gnus-server-remove-denials ()
425 "Make all denied servers into closed servers."
427 (dolist (server gnus-opened-servers)
428 (when (eq (nth 1 server) 'denied)
429 (setcar (nthcdr 1 server) 'closed)))
430 (gnus-server-list-servers))
432 (defun gnus-server-copy-server (from to)
435 (or (gnus-server-server-name)
436 (error "No server on the current line"))
437 (read-string "Copy to: ")))
439 (error "No server on current line"))
440 (unless (and to (not (string= to "")))
441 (error "No name to copy to"))
442 (when (assoc to gnus-server-alist)
443 (error "%s already exists" to))
444 (unless (gnus-server-to-method from)
445 (error "%s: no such server" from))
446 (let ((to-entry (cons from (gnus-copy-sequence
447 (gnus-server-to-method from)))))
449 (setcar (nthcdr 2 to-entry) to)
450 (push to-entry gnus-server-killed-servers)
451 (gnus-server-yank-server)))
453 (defun gnus-server-add-server (how where)
455 (list (intern (completing-read "Server method: "
456 gnus-valid-select-methods nil t))
457 (read-string "Server name: ")))
458 (when (assq where gnus-server-alist)
459 (error "Server with that name already defined"))
460 (push (list where how where) gnus-server-killed-servers)
461 (gnus-server-yank-server))
463 (defun gnus-server-goto-server (server)
464 "Jump to a server line."
466 (list (completing-read "Goto server: " gnus-server-alist nil t)))
467 (let ((to (text-property-any (point-min) (point-max)
468 'gnus-server (intern server))))
471 (gnus-server-position-point))))
473 (defun gnus-server-edit-server (server)
474 "Edit the server on the current line."
475 (interactive (list (gnus-server-server-name)))
477 (error "No server on current line"))
478 (unless (assoc server gnus-server-alist)
479 (error "This server can't be edited"))
480 (let ((info (cdr (assoc server gnus-server-alist))))
481 (gnus-close-server info)
483 info "Editing the server."
485 (gnus-server-set-info ,server form)
486 (gnus-server-list-servers)
487 (gnus-server-position-point)))))
489 (defun gnus-server-scan-server (server)
490 "Request a scan from the current server."
491 (interactive (list (gnus-server-server-name)))
492 (let ((method (gnus-server-to-method server)))
493 (if (not (gnus-get-function method 'request-scan))
494 (error "Server %s can't scan" (car method))
495 (gnus-message 3 "Scanning %s..." server)
496 (gnus-request-scan nil method)
497 (gnus-message 3 "Scanning %s...done" server))))
499 (defun gnus-server-read-server-in-server-buffer (server)
500 "Browse a server in server buffer."
501 (interactive (list (gnus-server-server-name)))
502 (let (gnus-server-browse-in-group-buffer)
503 (gnus-server-read-server server)))
505 (defun gnus-server-read-server (server)
507 (interactive (list (gnus-server-server-name)))
508 (let ((buf (current-buffer)))
510 (gnus-browse-foreign-server server buf)
513 (gnus-server-update-server (gnus-server-server-name))
514 (gnus-server-position-point)))))
516 (defun gnus-server-pick-server (e)
519 (gnus-server-read-server (gnus-server-server-name)))
523 ;;; Browse Server Mode
526 (defvar gnus-browse-menu-hook nil
527 "*Hook run after the creation of the browse mode menu.")
529 (defvar gnus-browse-mode-hook nil)
530 (defvar gnus-browse-mode-map nil)
531 (put 'gnus-browse-mode 'mode-class 'special)
533 (unless gnus-browse-mode-map
534 (setq gnus-browse-mode-map (make-keymap))
535 (suppress-keymap gnus-browse-mode-map)
539 " " gnus-browse-read-group
540 "=" gnus-browse-select-group
541 "n" gnus-browse-next-group
542 "p" gnus-browse-prev-group
543 "\177" gnus-browse-prev-group
544 [delete] gnus-browse-prev-group
545 "N" gnus-browse-next-group
546 "P" gnus-browse-prev-group
547 "\M-n" gnus-browse-next-group
548 "\M-p" gnus-browse-prev-group
549 "\r" gnus-browse-select-group
550 "u" gnus-browse-unsubscribe-current-group
555 "\C-c\C-c" gnus-browse-exit
556 "?" gnus-browse-describe-briefly
558 "\C-c\C-i" gnus-info-find-node
559 "\C-c\C-b" gnus-bug))
561 (defun gnus-browse-make-menu-bar ()
562 (gnus-turn-off-edit-menu 'browse)
563 (unless (boundp 'gnus-browse-menu)
565 gnus-browse-menu gnus-browse-mode-map ""
567 ["Subscribe" gnus-browse-unsubscribe-current-group t]
568 ["Read" gnus-browse-read-group t]
569 ["Select" gnus-browse-select-group t]
570 ["Next" gnus-browse-next-group t]
571 ["Prev" gnus-browse-next-group t]
572 ["Exit" gnus-browse-exit t]))
573 (gnus-run-hooks 'gnus-browse-menu-hook)))
575 (defvar gnus-browse-current-method nil)
576 (defvar gnus-browse-return-buffer nil)
578 (defvar gnus-browse-buffer "*Gnus Browse Server*")
580 (defun gnus-browse-foreign-server (server &optional return-buffer)
581 "Browse the server SERVER."
582 (setq gnus-browse-current-method (gnus-server-to-method server))
583 (setq gnus-browse-return-buffer return-buffer)
584 (let* ((method gnus-browse-current-method)
585 (orig-select-method gnus-select-method)
586 (gnus-select-method method)
588 (gnus-message 5 "Connecting to %s..." (nth 1 method))
590 ((not (gnus-check-server method))
592 1 "Unable to contact server %s: %s" (nth 1 method)
593 (gnus-status-message method))
597 (gnus-message 6 "Reading active file...")
598 (gnus-request-list method)
599 (gnus-message 6 "Reading active file...done")))
601 1 "Couldn't request list: %s" (gnus-status-message method))
605 (set-buffer nntp-server-buffer)
606 (let ((cur (current-buffer)))
607 (goto-char (point-min))
608 (unless (string= gnus-ignored-newsgroups "")
609 (delete-matching-lines gnus-ignored-newsgroups))
613 (if (eq (char-after) ?\")
615 (let ((p (point)) (name ""))
616 (skip-chars-forward "^ \t\\\\")
617 (setq name (buffer-substring p (point)))
618 (while (eq (char-after) ?\\)
619 (setq p (1+ (point)))
621 (skip-chars-forward "^ \t\\\\")
622 (setq name (concat name (buffer-substring
625 (let ((last (read cur)))
626 (cons (read cur) last)))
629 (setq groups (sort groups
631 (string< (car l1) (car l2)))))
632 (if gnus-server-browse-in-group-buffer
633 (let* ((gnus-select-method orig-select-method)
634 (gnus-group-listed-groups
635 (mapcar (lambda (group)
637 (gnus-group-prefixed-name
638 (car group) method)))
639 (gnus-set-active name (cdr group))
642 (gnus-configure-windows 'group)
643 (funcall gnus-group-prepare-function
644 gnus-level-killed 'ignore 1 'ingore))
645 (gnus-get-buffer-create gnus-browse-buffer)
647 (gnus-carpal-setup-buffer 'browse))
648 (gnus-configure-windows 'browse)
649 (buffer-disable-undo)
650 (let ((buffer-read-only nil))
653 (setq mode-line-buffer-identification
656 "Gnus: %%b {%s:%s}" (car method) (cadr method))))
657 (let ((buffer-read-only nil) charset)
659 (setq group (car groups))
660 (setq charset (gnus-group-name-charset method group))
661 (gnus-add-text-properties
665 (format "%c%7d: %s\n"
667 (let ((gnus-select-method orig-select-method))
669 (gnus-group-prefixed-name (car group)
672 ((<= level gnus-level-subscribed) ? )
673 ((<= level gnus-level-unsubscribed) ?U)
674 ((= level gnus-level-zombie) ?Z)
676 (max 0 (- (1+ (cddr group)) (cadr group)))
677 (gnus-group-name-decode (car group) charset))))
678 (list 'gnus-group (car group)))
679 (setq groups (cdr groups))))
680 (switch-to-buffer (current-buffer)))
681 (goto-char (point-min))
682 (gnus-group-position-point)
683 (gnus-message 5 "Connecting to %s...done" (nth 1 method))
686 (defun gnus-browse-mode ()
687 "Major mode for browsing a foreign server.
689 All normal editing commands are switched off.
691 \\<gnus-browse-mode-map>
692 The only things you can do in this buffer is
694 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
695 The group will be inserted into the group buffer upon exit from this
698 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
700 3) `\\[gnus-browse-exit]' to return to the group buffer."
702 (kill-all-local-variables)
703 (when (gnus-visual-p 'browse-menu 'menu)
704 (gnus-browse-make-menu-bar))
705 (gnus-simplify-mode-line)
706 (setq major-mode 'gnus-browse-mode)
707 (setq mode-name "Browse Server")
708 (setq mode-line-process nil)
709 (use-local-map gnus-browse-mode-map)
710 (buffer-disable-undo)
711 (setq truncate-lines t)
712 (gnus-set-default-directory)
713 (setq buffer-read-only t)
714 (gnus-run-hooks 'gnus-browse-mode-hook))
716 (defun gnus-browse-read-group (&optional no-article)
717 "Enter the group at the current line."
719 (let ((group (gnus-browse-group-name)))
720 (if (or (not (gnus-get-info group))
721 (gnus-ephemeral-group-p group))
722 (unless (gnus-group-read-ephemeral-group
723 (gnus-group-real-name group) gnus-browse-current-method nil
724 (cons (current-buffer) 'browse))
725 (error "Couldn't enter %s" group))
726 (unless (gnus-group-read-group nil no-article group)
727 (error "Couldn't enter %s" group)))))
729 (defun gnus-browse-select-group ()
730 "Select the current group."
732 (gnus-browse-read-group 'no))
734 (defun gnus-browse-next-group (n)
735 "Go to the next group."
739 (gnus-group-position-point)))
741 (defun gnus-browse-prev-group (n)
742 "Go to the next group."
744 (gnus-browse-next-group (- n)))
746 (defun gnus-browse-unsubscribe-current-group (arg)
747 "(Un)subscribe to the next ARG groups."
750 (error "No group at current line"))
751 (let ((ward (if (< arg 0) -1 1))
753 (while (and (> arg 0)
755 (gnus-browse-unsubscribe-group)
756 (zerop (gnus-browse-next-group ward)))
758 (gnus-group-position-point)
760 (gnus-message 7 "No more newsgroups"))
763 (defun gnus-browse-group-name ()
766 (let ((name (get-text-property (point) 'gnus-group)))
767 (when (re-search-forward ": \\(.*\\)$" (gnus-point-at-eol) t)
768 (gnus-group-prefixed-name
770 (match-string-no-properties 1))
771 gnus-browse-current-method)))))
773 (defun gnus-browse-unsubscribe-group ()
774 "Toggle subscription of the current group in the browse buffer."
776 (buffer-read-only nil)
780 ;; If this group it killed, then we want to subscribe it.
781 (unless (eq (char-after) ? )
783 (setq group (gnus-browse-group-name))
786 ;; (cadr (gnus-gethash group gnus-newsrc-hashtb)))
787 ;;(error "Group already subscribed"))
790 ;; Make sure the group has been properly removed before we
792 (gnus-kill-ephemeral-group group)
793 (gnus-group-change-level
794 (list t group gnus-level-default-subscribed
795 nil nil (if (gnus-server-equal
796 gnus-browse-current-method "native")
798 (gnus-method-simplify
799 gnus-browse-current-method)))
800 gnus-level-default-subscribed (gnus-group-level group)
801 (and (car (nth 1 gnus-newsrc-alist))
802 (gnus-gethash (car (nth 1 gnus-newsrc-alist))
807 (gnus-group-change-level
808 group gnus-level-unsubscribed gnus-level-default-subscribed)
813 (defun gnus-browse-exit ()
814 "Quit browsing and return to the group buffer."
816 (when (eq major-mode 'gnus-browse-mode)
817 (kill-buffer (current-buffer)))
818 ;; Insert the newly subscribed groups in the group buffer.
820 (set-buffer gnus-group-buffer)
821 (gnus-group-list-groups nil))
822 (if gnus-browse-return-buffer
823 (gnus-configure-windows 'server 'force)
824 (gnus-configure-windows 'group 'force)))
826 (defun gnus-browse-describe-briefly ()
827 "Give a one line description of the group mode commands."
830 (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")))
832 (defun gnus-server-regenerate-server ()
833 "Issue a command to the server to regenerate all its data structures."
835 (let ((server (gnus-server-server-name)))
837 (error "No server on the current line"))
839 (gnus-get-function (gnus-server-to-method server)
842 (error "This backend doesn't support regeneration")))
843 (gnus-message 5 "Requesting regeneration of %s..." server)
844 (unless (gnus-open-server server)
845 (error "Couldn't open server"))
846 (if (gnus-request-regenerate server)
847 (gnus-message 5 "Requesting regeneration of %s...done" server)
848 (gnus-message 5 "Couldn't regenerate %s" server))))
852 ;;; gnus-srvr.el ends here.