1 ;;; gnus-srvr.el --- virtual server support for Gnus
2 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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."
75 :group 'gnus-server-visual
78 ;;; Internal variables.
80 (defvar gnus-inserted-opened-servers nil)
82 (defvar gnus-server-line-format-alist
83 `((?h gnus-tmp-how ?s)
85 (?w gnus-tmp-where ?s)
86 (?s gnus-tmp-status ?s)
87 (?a gnus-tmp-agent ?s)))
89 (defvar gnus-server-mode-line-format-alist
90 `((?S gnus-tmp-news-server ?s)
91 (?M gnus-tmp-news-method ?s)
92 (?u gnus-tmp-user-defined ?s)))
94 (defvar gnus-server-line-format-spec nil)
95 (defvar gnus-server-mode-line-format-spec nil)
96 (defvar gnus-server-killed-servers nil)
98 (defvar gnus-server-mode-map)
100 (defvar gnus-server-menu-hook nil
101 "*Hook run after the creation of the server mode menu.")
103 (defun gnus-server-make-menu-bar ()
104 (gnus-turn-off-edit-menu 'server)
105 (unless (boundp 'gnus-server-server-menu)
107 gnus-server-server-menu gnus-server-mode-map ""
109 ["Add..." gnus-server-add-server t]
110 ["Browse" gnus-server-read-server t]
111 ["Scan" gnus-server-scan-server t]
112 ["List" gnus-server-list-servers t]
113 ["Kill" gnus-server-kill-server t]
114 ["Yank" gnus-server-yank-server t]
115 ["Copy" gnus-server-copy-server t]
116 ["Edit" gnus-server-edit-server t]
117 ["Regenerate" gnus-server-regenerate-server t]
118 ["Exit" gnus-server-exit t]))
121 gnus-server-connections-menu gnus-server-mode-map ""
123 ["Open" gnus-server-open-server t]
124 ["Close" gnus-server-close-server t]
125 ["Offline" gnus-server-offline-server t]
126 ["Deny" gnus-server-deny-server t]
128 ["Open All" gnus-server-open-all-servers t]
129 ["Close All" gnus-server-close-all-servers t]
130 ["Reset All" gnus-server-remove-denials t]))
132 (gnus-run-hooks 'gnus-server-menu-hook)))
134 (defvar gnus-server-mode-map nil)
135 (put 'gnus-server-mode 'mode-class 'special)
137 (unless gnus-server-mode-map
138 (setq gnus-server-mode-map (make-sparse-keymap))
139 (suppress-keymap gnus-server-mode-map)
141 (gnus-define-keys gnus-server-mode-map
142 " " gnus-server-read-server-in-server-buffer
143 "\r" gnus-server-read-server
144 gnus-mouse-2 gnus-server-pick-server
146 "l" gnus-server-list-servers
147 "k" gnus-server-kill-server
148 "y" gnus-server-yank-server
149 "c" gnus-server-copy-server
150 "a" gnus-server-add-server
151 "e" gnus-server-edit-server
152 "s" gnus-server-scan-server
154 "O" gnus-server-open-server
155 "\M-o" gnus-server-open-all-servers
156 "C" gnus-server-close-server
157 "\M-c" gnus-server-close-all-servers
158 "D" gnus-server-deny-server
159 "L" gnus-server-offline-server
160 "R" gnus-server-remove-denials
165 "g" gnus-server-regenerate-server
167 "\C-c\C-i" gnus-info-find-node
168 "\C-c\C-b" gnus-bug))
170 (defface gnus-server-agent-face
171 '((((class color) (background light)) (:foreground "PaleTurquoise" :bold t))
172 (((class color) (background dark)) (:foreground "PaleTurquoise" :bold t))
174 "Face used for displaying AGENTIZED servers"
175 :group 'gnus-server-visual)
177 (defface gnus-server-opened-face
178 '((((class color) (background light)) (:foreground "Green3" :bold t))
179 (((class color) (background dark)) (:foreground "Green1" :bold t))
181 "Face used for displaying OPENED servers"
182 :group 'gnus-server-visual)
184 (defface gnus-server-closed-face
185 '((((class color) (background light)) (:foreground "Steel Blue" :italic t))
186 (((class color) (background dark))
187 (:foreground "Light Steel Blue" :italic t))
189 "Face used for displaying CLOSED servers"
190 :group 'gnus-server-visual)
192 (defface gnus-server-denied-face
193 '((((class color) (background light)) (:foreground "Red" :bold t))
194 (((class color) (background dark)) (:foreground "Pink" :bold t))
195 (t (:inverse-video t :bold t)))
196 "Face used for displaying DENIED servers"
197 :group 'gnus-server-visual)
199 (defface gnus-server-offline-face
200 '((((class color) (background light)) (:foreground "Orange" :bold t))
201 (((class color) (background dark)) (:foreground "Yellow" :bold t))
202 (t (:inverse-video t :bold t)))
203 "Face used for displaying OFFLINE servers"
204 :group 'gnus-server-visual)
206 (defcustom gnus-server-agent-face 'gnus-server-agent-face
207 "Face name to use on AGENTIZED servers."
209 :group 'gnus-server-visual
212 (defcustom gnus-server-opened-face 'gnus-server-opened-face
213 "Face name to use on OPENED servers."
215 :group 'gnus-server-visual
218 (defcustom gnus-server-closed-face 'gnus-server-closed-face
219 "Face name to use on CLOSED servers."
221 :group 'gnus-server-visual
224 (defcustom gnus-server-denied-face 'gnus-server-denied-face
225 "Face name to use on DENIED servers."
227 :group 'gnus-server-visual
230 (defcustom gnus-server-offline-face 'gnus-server-offline-face
231 "Face name to use on OFFLINE servers."
233 :group 'gnus-server-visual
236 (defvar gnus-server-font-lock-keywords
238 '("(\\(agent\\))" 1 gnus-server-agent-face)
239 '("(\\(opened\\))" 1 gnus-server-opened-face)
240 '("(\\(closed\\))" 1 gnus-server-closed-face)
241 '("(\\(offline\\))" 1 gnus-server-offline-face)
242 '("(\\(denied\\))" 1 gnus-server-denied-face)))
244 (defun gnus-server-mode ()
245 "Major mode for listing and editing servers.
247 All normal editing commands are switched off.
248 \\<gnus-server-mode-map>
249 For more in-depth information on this mode, read the manual
250 \(`\\[gnus-info-find-node]').
252 The following commands are available:
254 \\{gnus-server-mode-map}"
256 (when (gnus-visual-p 'server-menu 'menu)
257 (gnus-server-make-menu-bar))
258 (kill-all-local-variables)
259 (gnus-simplify-mode-line)
260 (setq major-mode 'gnus-server-mode)
261 (setq mode-name "Server")
262 (gnus-set-default-directory)
263 (setq mode-line-process nil)
264 (use-local-map gnus-server-mode-map)
265 (buffer-disable-undo)
266 (setq truncate-lines t)
267 (setq buffer-read-only t)
268 (if (featurep 'xemacs)
269 (put 'gnus-server-mode 'font-lock-defaults '(gnus-server-font-lock-keywords t))
270 (set (make-local-variable 'font-lock-defaults)
271 '(gnus-server-font-lock-keywords t)))
272 (gnus-run-hooks 'gnus-server-mode-hook))
274 (defun gnus-server-insert-server-line (gnus-tmp-name method)
275 (let* ((gnus-tmp-how (car method))
276 (gnus-tmp-where (nth 1 method))
277 (elem (assoc method gnus-opened-servers))
280 ((eq (nth 1 elem) 'denied) "(denied)")
281 ((eq (nth 1 elem) 'offline) "(offline)")
284 (if (or (gnus-server-opened method)
285 (eq (nth 1 elem) 'ok))
288 ((error) "(error)")))))
289 (gnus-tmp-agent (if (and gnus-agent
290 (gnus-agent-method-p method))
294 (gnus-add-text-properties
298 (eval gnus-server-line-format-spec))
299 (list 'gnus-server (intern gnus-tmp-name)
300 'gnus-named-server (intern (gnus-method-to-server method))))))
302 (defun gnus-enter-server-buffer ()
303 "Set up the server buffer."
304 (gnus-server-setup-buffer)
305 (gnus-configure-windows 'server)
306 (gnus-server-prepare))
308 (defun gnus-server-setup-buffer ()
309 "Initialize the server buffer."
310 (unless (get-buffer gnus-server-buffer)
312 (set-buffer (gnus-get-buffer-create gnus-server-buffer))
315 (gnus-carpal-setup-buffer 'server)))))
317 (defun gnus-server-prepare ()
318 (gnus-set-format 'server-mode)
319 (gnus-set-format 'server t)
320 (let ((alist gnus-server-alist)
321 (buffer-read-only nil)
324 (setq gnus-inserted-opened-servers nil)
325 ;; First we do the real list of servers.
327 (unless (member (cdar alist) done)
328 (push (cdar alist) done)
329 (setq server (pop alist))
330 (when (and server (car server) (cdr server))
331 (gnus-server-insert-server-line (car server) (cdr server))))
332 (when (member (cdar alist) done)
334 ;; Then we insert the list of servers that have been opened in
336 (dolist (open gnus-opened-servers)
337 (when (and (not (member (car open) done))
338 ;; Just ignore ephemeral servers.
339 (not (member (car open) gnus-ephemeral-servers)))
340 (push (car open) done)
341 (gnus-server-insert-server-line
342 (setq op-ser (format "%s:%s" (caar open) (nth 1 (car open))))
344 (push (list op-ser (car open)) gnus-inserted-opened-servers))))
345 (goto-char (point-min))
346 (gnus-server-position-point))
348 (defun gnus-server-server-name ()
349 (let ((server (get-text-property (point-at-bol) 'gnus-server)))
350 (and server (symbol-name server))))
352 (defun gnus-server-named-server ()
353 "Return a server name that matches one of the names returned by
354 `gnus-method-to-server'."
355 (let ((server (get-text-property (point-at-bol) 'gnus-named-server)))
356 (and server (symbol-name server))))
358 (defalias 'gnus-server-position-point 'gnus-goto-colon)
360 (defconst gnus-server-edit-buffer "*Gnus edit server*")
362 (defun gnus-server-update-server (server)
364 (set-buffer gnus-server-buffer)
365 (let* ((buffer-read-only nil)
366 (entry (assoc server gnus-server-alist))
367 (oentry (assoc (gnus-server-to-method server)
368 gnus-opened-servers)))
371 (concat "(gnus-server-set-info \"" server "\" '"
372 (gnus-prin1-to-string (cdr entry)) ")\n")))
373 (when (or entry oentry)
374 ;; Buffer may be narrowed.
377 (when (gnus-server-goto-server server)
380 (gnus-server-insert-server-line (car entry) (cdr entry))
381 (gnus-server-insert-server-line
382 (format "%s:%s" (caar oentry) (nth 1 (car oentry)))
384 (gnus-server-position-point))))))
386 (defun gnus-server-set-info (server info)
387 ;; Enter a select method into the virtual server alist.
388 (when (and server info)
390 (concat "(gnus-server-set-info \"" server "\" '"
391 (gnus-prin1-to-string info) ")"))
392 (let* ((server (nth 1 info))
393 (entry (assoc server gnus-server-alist))
394 (cached (assoc server gnus-server-method-cache)))
396 (setq gnus-server-method-cache
397 (delq cached gnus-server-method-cache)))
400 ;; Remove the server from `gnus-opened-servers' since
401 ;; it has never been opened with the new `info' yet.
402 (gnus-opened-servers-remove (cdr entry))
403 ;; Don't make a new Lisp object.
404 (setcar (cdr entry) (car info))
405 (setcdr (cdr entry) (cdr info)))
406 (setq gnus-server-alist
407 (nconc gnus-server-alist (list (cons server info))))))))
409 ;;; Interactive server functions.
411 (defun gnus-server-kill-server (server)
412 "Kill the server on the current line."
413 (interactive (list (gnus-server-server-name)))
414 (unless (gnus-server-goto-server server)
415 (if server (error "No such server: %s" server)
416 (error "No server on the current line")))
417 (unless (assoc server gnus-server-alist)
418 (error "Read-only server %s" server))
420 (let ((buffer-read-only nil))
422 (push (assoc server gnus-server-alist) gnus-server-killed-servers)
423 (setq gnus-server-alist (delq (car gnus-server-killed-servers)
425 (let ((groups (gnus-groups-from-server server)))
428 (format "Kill all %s groups from this server? "
430 (dolist (group groups)
431 (setq gnus-newsrc-alist
432 (delq (assoc group gnus-newsrc-alist)
434 (when gnus-group-change-level-function
435 (funcall gnus-group-change-level-function
436 group gnus-level-killed 3)))))
437 (gnus-server-position-point))
439 (defun gnus-server-yank-server ()
440 "Yank the previously killed server."
442 (unless gnus-server-killed-servers
443 (error "No killed servers to be yanked"))
444 (let ((alist gnus-server-alist)
445 (server (gnus-server-server-name))
446 (killed (car gnus-server-killed-servers)))
448 (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
449 (if (string= server (caar gnus-server-alist))
450 (push killed gnus-server-alist)
451 (while (and (cdr alist)
452 (not (string= server (caadr alist))))
453 (setq alist (cdr alist)))
455 (setcdr alist (cons killed (cdr alist)))
456 (setq gnus-server-alist (list killed)))))
457 (gnus-server-update-server (car killed))
458 (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
459 (gnus-server-position-point)))
461 (defun gnus-server-exit ()
462 "Return to the group buffer."
464 (gnus-run-hooks 'gnus-server-exit-hook)
465 (gnus-kill-buffer (current-buffer))
466 (gnus-configure-windows 'group t))
468 (defun gnus-server-list-servers ()
469 "List all available servers."
471 (let ((cur (gnus-server-server-name)))
472 (gnus-server-prepare)
473 (if cur (gnus-server-goto-server cur)
474 (goto-char (point-max))
476 (gnus-server-position-point)))
478 (defun gnus-server-set-status (method status)
479 "Make METHOD have STATUS."
480 (let ((entry (assoc method gnus-opened-servers)))
482 (setcar (cdr entry) status)
483 (push (list method status) gnus-opened-servers))))
485 (defun gnus-opened-servers-remove (method)
486 "Remove METHOD from the list of opened servers."
487 (setq gnus-opened-servers (delq (assoc method gnus-opened-servers)
488 gnus-opened-servers)))
490 (defun gnus-server-open-server (server)
491 "Force an open of SERVER."
492 (interactive (list (gnus-server-server-name)))
493 (let ((method (gnus-server-to-method server)))
495 (error "No such server: %s" server))
496 (gnus-server-set-status method 'ok)
498 (or (gnus-open-server method)
499 (progn (message "Couldn't open %s" server) nil))
500 (gnus-server-update-server server)
501 (gnus-server-position-point))))
503 (defun gnus-server-open-all-servers ()
506 (dolist (server gnus-inserted-opened-servers)
507 (gnus-server-open-server (car server))))
509 (defun gnus-server-close-server (server)
511 (interactive (list (gnus-server-server-name)))
512 (let ((method (gnus-server-to-method server)))
514 (error "No such server: %s" server))
515 (gnus-server-set-status method 'closed)
517 (gnus-close-server method)
518 (gnus-server-update-server server)
519 (gnus-server-position-point))))
521 (defun gnus-server-offline-server (server)
522 "Set SERVER to offline."
523 (interactive (list (gnus-server-server-name)))
524 (let ((method (gnus-server-to-method server)))
526 (error "No such server: %s" server))
528 (gnus-close-server method)
529 (gnus-server-set-status method 'offline)
530 (gnus-server-update-server server)
531 (gnus-server-position-point))))
533 (defun gnus-server-close-all-servers ()
536 (dolist (server gnus-inserted-opened-servers)
537 (gnus-server-close-server (car server))))
539 (defun gnus-server-deny-server (server)
540 "Make sure SERVER will never be attempted opened."
541 (interactive (list (gnus-server-server-name)))
542 (let ((method (gnus-server-to-method server)))
544 (error "No such server: %s" server))
545 (gnus-server-set-status method 'denied))
546 (gnus-server-update-server server)
547 (gnus-server-position-point)
550 (defun gnus-server-remove-denials ()
551 "Make all denied servers into closed servers."
553 (dolist (server gnus-opened-servers)
554 (when (eq (nth 1 server) 'denied)
555 (setcar (nthcdr 1 server) 'closed)))
556 (gnus-server-list-servers))
558 (defun gnus-server-copy-server (from to)
561 (or (gnus-server-server-name)
562 (error "No server on the current line"))
563 (read-string "Copy to: ")))
565 (error "No server on current line"))
566 (unless (and to (not (string= to "")))
567 (error "No name to copy to"))
568 (when (assoc to gnus-server-alist)
569 (error "%s already exists" to))
570 (unless (gnus-server-to-method from)
571 (error "%s: no such server" from))
572 (let ((to-entry (cons from (gnus-copy-sequence
573 (gnus-server-to-method from)))))
575 (setcar (nthcdr 2 to-entry) to)
576 (push to-entry gnus-server-killed-servers)
577 (gnus-server-yank-server)))
579 (defun gnus-server-add-server (how where)
581 (list (intern (completing-read "Server method: "
582 gnus-valid-select-methods nil t))
583 (read-string "Server name: ")))
584 (when (assq where gnus-server-alist)
585 (error "Server with that name already defined"))
586 (push (list where how where) gnus-server-killed-servers)
587 (gnus-server-yank-server))
589 (defun gnus-server-goto-server (server)
590 "Jump to a server line."
592 (list (completing-read "Goto server: " gnus-server-alist nil t)))
593 (let ((to (text-property-any (point-min) (point-max)
594 'gnus-server (intern server))))
597 (gnus-server-position-point))))
599 (defun gnus-server-edit-server (server)
600 "Edit the server on the current line."
601 (interactive (list (gnus-server-server-name)))
603 (error "No server on current line"))
604 (unless (assoc server gnus-server-alist)
605 (error "This server can't be edited"))
606 (let ((info (cdr (assoc server gnus-server-alist))))
607 (gnus-close-server info)
609 info "Editing the server."
611 (gnus-server-set-info ,server form)
612 (gnus-server-list-servers)
613 (gnus-server-position-point)))))
615 (defun gnus-server-scan-server (server)
616 "Request a scan from the current server."
617 (interactive (list (gnus-server-server-name)))
618 (let ((method (gnus-server-to-method server)))
619 (if (not (gnus-get-function method 'request-scan))
620 (error "Server %s can't scan" (car method))
621 (gnus-message 3 "Scanning %s..." server)
622 (gnus-request-scan nil method)
623 (gnus-message 3 "Scanning %s...done" server))))
625 (defun gnus-server-read-server-in-server-buffer (server)
626 "Browse a server in server buffer."
627 (interactive (list (gnus-server-server-name)))
628 (let (gnus-server-browse-in-group-buffer)
629 (gnus-server-read-server server)))
631 (defun gnus-server-read-server (server)
633 (interactive (list (gnus-server-server-name)))
634 (let ((buf (current-buffer)))
636 (gnus-browse-foreign-server server buf)
639 (gnus-server-update-server (gnus-server-server-name))
640 (gnus-server-position-point)))))
642 (defun gnus-server-pick-server (e)
645 (gnus-server-read-server (gnus-server-server-name)))
649 ;;; Browse Server Mode
652 (defvar gnus-browse-menu-hook nil
653 "*Hook run after the creation of the browse mode menu.")
655 (defvar gnus-browse-mode-hook nil)
656 (defvar gnus-browse-mode-map nil)
657 (put 'gnus-browse-mode 'mode-class 'special)
659 (unless gnus-browse-mode-map
660 (setq gnus-browse-mode-map (make-keymap))
661 (suppress-keymap gnus-browse-mode-map)
665 " " gnus-browse-read-group
666 "=" gnus-browse-select-group
667 "n" gnus-browse-next-group
668 "p" gnus-browse-prev-group
669 "\177" gnus-browse-prev-group
670 [delete] gnus-browse-prev-group
671 "N" gnus-browse-next-group
672 "P" gnus-browse-prev-group
673 "\M-n" gnus-browse-next-group
674 "\M-p" gnus-browse-prev-group
675 "\r" gnus-browse-select-group
676 "u" gnus-browse-unsubscribe-current-group
681 "d" gnus-browse-describe-group
682 "\C-c\C-c" gnus-browse-exit
683 "?" gnus-browse-describe-briefly
685 "\C-c\C-i" gnus-info-find-node
686 "\C-c\C-b" gnus-bug))
688 (defun gnus-browse-make-menu-bar ()
689 (gnus-turn-off-edit-menu 'browse)
690 (unless (boundp 'gnus-browse-menu)
692 gnus-browse-menu gnus-browse-mode-map ""
694 ["Subscribe" gnus-browse-unsubscribe-current-group t]
695 ["Read" gnus-browse-read-group t]
696 ["Select" gnus-browse-select-group t]
697 ["Describe" gnus-browse-describe-group t]
698 ["Next" gnus-browse-next-group t]
699 ["Prev" gnus-browse-prev-group t]
700 ["Exit" gnus-browse-exit t]))
701 (gnus-run-hooks 'gnus-browse-menu-hook)))
703 (defvar gnus-browse-current-method nil)
704 (defvar gnus-browse-return-buffer nil)
706 (defvar gnus-browse-buffer "*Gnus Browse Server*")
708 (defun gnus-browse-foreign-server (server &optional return-buffer)
709 "Browse the server SERVER."
710 (setq gnus-browse-current-method (gnus-server-to-method server))
711 (setq gnus-browse-return-buffer return-buffer)
712 (let* ((method gnus-browse-current-method)
713 (orig-select-method gnus-select-method)
714 (gnus-select-method method)
716 (gnus-message 5 "Connecting to %s..." (nth 1 method))
718 ((not (gnus-check-server method))
720 1 "Unable to contact server %s: %s" (nth 1 method)
721 (gnus-status-message method))
725 (gnus-message 6 "Reading active file...")
726 (gnus-request-list method)
727 (gnus-message 6 "Reading active file...done")))
729 1 "Couldn't request list: %s" (gnus-status-message method))
732 (with-current-buffer nntp-server-buffer
733 (let ((cur (current-buffer)))
734 (goto-char (point-min))
735 (unless (string= gnus-ignored-newsgroups "")
736 (delete-matching-lines gnus-ignored-newsgroups))
737 ;; We treat NNTP as a special case to avoid problems with
738 ;; garbage group names like `"foo' that appear in some badly
739 ;; managed active files. -jh.
740 (if (eq (car method) 'nntp)
747 (skip-chars-forward "^ \t")
749 (let ((last (read cur)))
750 (cons (read cur) last)))
756 (if (eq (char-after) ?\")
758 (let ((p (point)) (name ""))
759 (skip-chars-forward "^ \t\\\\")
760 (setq name (buffer-substring p (point)))
761 (while (eq (char-after) ?\\)
762 (setq p (1+ (point)))
764 (skip-chars-forward "^ \t\\\\")
765 (setq name (concat name (buffer-substring
768 (let ((last (read cur)))
769 (cons (read cur) last)))
772 (setq groups (sort groups
774 (string< (car l1) (car l2)))))
775 (if gnus-server-browse-in-group-buffer
776 (let* ((gnus-select-method orig-select-method)
777 (gnus-group-listed-groups
778 (mapcar (lambda (group)
780 (gnus-group-prefixed-name
781 (car group) method)))
782 (gnus-set-active name (cdr group))
785 (gnus-configure-windows 'group)
786 (funcall gnus-group-prepare-function
787 gnus-level-killed 'ignore 1 'ignore))
788 (gnus-get-buffer-create gnus-browse-buffer)
790 (gnus-carpal-setup-buffer 'browse))
791 (gnus-configure-windows 'browse)
792 (buffer-disable-undo)
793 (let ((buffer-read-only nil))
796 (setq mode-line-buffer-identification
799 "Gnus: %%b {%s:%s}" (car method) (cadr method))))
800 (let ((buffer-read-only nil)
802 (prefix (let ((gnus-select-method orig-select-method))
803 (gnus-group-prefixed-name "" method))))
804 (while (setq group (pop groups))
805 (gnus-add-text-properties
809 (format "%c%7d: %s\n"
811 (if (string= prefix "")
812 (gnus-group-level (setq name (car group)))
814 (concat prefix (setq name (car group)))))))
816 ((<= level gnus-level-subscribed) ? )
817 ((<= level gnus-level-unsubscribed) ?U)
818 ((= level gnus-level-zombie) ?Z)
820 (max 0 (- (1+ (cddr group)) (cadr group)))
821 ;; Don't decode if name is ASCII
822 (if (and (fboundp 'detect-coding-string)
823 (eq (detect-coding-string name t) 'undecided))
825 (decode-coding-string
827 (inline (gnus-group-name-charset method name)))))))
828 (list 'gnus-group name)
830 (switch-to-buffer (current-buffer)))
831 (goto-char (point-min))
832 (gnus-group-position-point)
833 (gnus-message 5 "Connecting to %s...done" (nth 1 method))
836 (defun gnus-browse-mode ()
837 "Major mode for browsing a foreign server.
839 All normal editing commands are switched off.
841 \\<gnus-browse-mode-map>
842 The only things you can do in this buffer is
844 1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
845 The group will be inserted into the group buffer upon exit from this
848 2) `\\[gnus-browse-read-group]' to read a group ephemerally.
850 3) `\\[gnus-browse-exit]' to return to the group buffer."
852 (kill-all-local-variables)
853 (when (gnus-visual-p 'browse-menu 'menu)
854 (gnus-browse-make-menu-bar))
855 (gnus-simplify-mode-line)
856 (setq major-mode 'gnus-browse-mode)
857 (setq mode-name "Browse Server")
858 (setq mode-line-process nil)
859 (use-local-map gnus-browse-mode-map)
860 (buffer-disable-undo)
861 (setq truncate-lines t)
862 (gnus-set-default-directory)
863 (setq buffer-read-only t)
864 (gnus-run-hooks 'gnus-browse-mode-hook))
866 (defun gnus-browse-read-group (&optional no-article number)
867 "Enter the group at the current line.
868 If NUMBER, fetch this number of articles."
870 (let ((group (gnus-browse-group-name)))
871 (if (or (not (gnus-get-info group))
872 (gnus-ephemeral-group-p group))
873 (unless (gnus-group-read-ephemeral-group
874 group gnus-browse-current-method nil
875 (cons (current-buffer) 'browse)
877 (error "Couldn't enter %s" group))
878 (unless (gnus-group-read-group nil no-article group)
879 (error "Couldn't enter %s" group)))))
881 (defun gnus-browse-select-group (&optional number)
882 "Select the current group.
883 If NUMBER, fetch this number of articles."
885 (gnus-browse-read-group 'no number))
887 (defun gnus-browse-next-group (n)
888 "Go to the next group."
892 (gnus-group-position-point)))
894 (defun gnus-browse-prev-group (n)
895 "Go to the next group."
897 (gnus-browse-next-group (- n)))
899 (defun gnus-browse-unsubscribe-current-group (arg)
900 "(Un)subscribe to the next ARG groups."
903 (error "No group at current line"))
904 (let ((ward (if (< arg 0) -1 1))
906 (while (and (> arg 0)
908 (gnus-browse-unsubscribe-group)
909 (zerop (gnus-browse-next-group ward)))
911 (gnus-group-position-point)
913 (gnus-message 7 "No more newsgroups"))
916 (defun gnus-browse-group-name ()
919 (let ((name (get-text-property (point) 'gnus-group)))
920 (when (re-search-forward ": \\(.*\\)$" (point-at-eol) t)
921 (concat (gnus-method-to-server-name gnus-browse-current-method) ":"
923 (match-string-no-properties 1)))))))
925 (defun gnus-browse-describe-group (group)
926 "Describe the current group."
927 (interactive (list (gnus-browse-group-name)))
928 (gnus-group-describe-group nil group))
930 (defun gnus-browse-unsubscribe-group ()
931 "Toggle subscription of the current group in the browse buffer."
933 (buffer-read-only nil)
937 ;; If this group it killed, then we want to subscribe it.
938 (unless (eq (char-after) ? )
940 (setq group (gnus-browse-group-name))
941 (when (gnus-server-equal gnus-browse-current-method "native")
942 (setq group (gnus-group-real-name group)))
945 ;; Make sure the group has been properly removed before we
947 (gnus-kill-ephemeral-group group)
948 (gnus-group-change-level
949 (list t group gnus-level-default-subscribed
950 nil nil (if (gnus-server-equal
951 gnus-browse-current-method "native")
953 (gnus-method-simplify
954 gnus-browse-current-method)))
955 gnus-level-default-subscribed (gnus-group-level group)
956 (and (car (nth 1 gnus-newsrc-alist))
957 (gnus-group-entry (car (nth 1 gnus-newsrc-alist))))
961 (gnus-group-change-level
962 group gnus-level-unsubscribed gnus-level-default-subscribed)
967 (defun gnus-browse-exit ()
968 "Quit browsing and return to the group buffer."
970 (when (eq major-mode 'gnus-browse-mode)
971 (gnus-kill-buffer (current-buffer)))
972 ;; Insert the newly subscribed groups in the group buffer.
974 (set-buffer gnus-group-buffer)
975 (gnus-group-list-groups nil))
976 (if gnus-browse-return-buffer
977 (gnus-configure-windows 'server 'force)
978 (gnus-configure-windows 'group 'force)))
980 (defun gnus-browse-describe-briefly ()
981 "Give a one line description of the group mode commands."
984 (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")))
986 (defun gnus-server-regenerate-server ()
987 "Issue a command to the server to regenerate all its data structures."
989 (let ((server (gnus-server-server-name)))
991 (error "No server on the current line"))
993 (gnus-get-function (gnus-server-to-method server)
996 (error "This back end doesn't support regeneration")))
997 (gnus-message 5 "Requesting regeneration of %s..." server)
998 (unless (gnus-open-server server)
999 (error "Couldn't open server"))
1000 (if (gnus-request-regenerate server)
1001 (gnus-message 5 "Requesting regeneration of %s...done" server)
1002 (gnus-message 5 "Couldn't regenerate %s" server))))
1004 (provide 'gnus-srvr)
1006 ;;; gnus-srvr.el ends here