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Require cl at compile time.
[bpt/emacs.git] / lisp / gnus / gnus-group.el
CommitLineData
eec82323
LMI		 1;;; gnus-group.el --- group mode commands for Gnus
2;; Copyright (C) 1996,97 Free Software Foundation, Inc.
3
4;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
5;; Keywords: news
6
7;; This file is part of GNU Emacs.
8
9;; GNU Emacs is free software; you can redistribute it and/or modify
10;; it under the terms of the GNU General Public License as published by
11;; the Free Software Foundation; either version 2, or (at your option)
12;; any later version.
13
14;; GNU Emacs is distributed in the hope that it will be useful,
15;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17;; GNU General Public License for more details.
18
19;; You should have received a copy of the GNU General Public License
20;; along with GNU Emacs; see the file COPYING. If not, write to the
21;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22;; Boston, MA 02111-1307, USA.
23
24;;; Commentary:
25
26;;; Code:
27
5ab7173c
RS		 28(eval-when-compile (require 'cl))
29
eec82323
LMI		 30(require 'gnus)
31(require 'gnus-start)
32(require 'nnmail)
33(require 'gnus-spec)
34(require 'gnus-int)
35(require 'gnus-range)
36(require 'gnus-win)
37(require 'gnus-undo)
38
39(defcustom gnus-group-archive-directory
40 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list/"
41 "*The address of the (ding) archives."
42 :group 'gnus-group-foreign
43 :type 'directory)
44
45(defcustom gnus-group-recent-archive-directory
46 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list-recent/"
47 "*The address of the most recent (ding) articles."
48 :group 'gnus-group-foreign
49 :type 'directory)
50
51(defcustom gnus-no-groups-message "No news is no news"
52 "*Message displayed by Gnus when no groups are available."
53 :group 'gnus-start
54 :type 'string)
55
56(defcustom gnus-keep-same-level nil
57 "*Non-nil means that the next newsgroup after the current will be on the same level.
58When you type, for instance, `n' after reading the last article in the
59current newsgroup, you will go to the next newsgroup. If this variable
60is nil, the next newsgroup will be the next from the group
61buffer.
62If this variable is non-nil, Gnus will either put you in the
63next newsgroup with the same level, or, if no such newsgroup is
64available, the next newsgroup with the lowest possible level higher
65than the current level.
66If this variable is `best', Gnus will make the next newsgroup the one
67with the best level."
68 :group 'gnus-group-levels
69 :type '(choice (const nil)
70 (const best)
71 (sexp :tag "other" t)))
72
73(defcustom gnus-group-goto-unread t
74 "*If non-nil, movement commands will go to the next unread and subscribed group."
75 :link '(custom-manual "(gnus)Group Maneuvering")
76 :group 'gnus-group-various
77 :type 'boolean)
78
79(defcustom gnus-goto-next-group-when-activating t
80 "*If non-nil, the \\<gnus-group-mode-map>\\[gnus-group-get-new-news-this-group] command will advance point to the next group."
81 :link '(custom-manual "(gnus)Scanning New Messages")
82 :group 'gnus-group-various
83 :type 'boolean)
84
85(defcustom gnus-permanently-visible-groups nil
86 "*Regexp to match groups that should always be listed in the group buffer.
87This means that they will still be listed when there are no unread
88articles in the groups."
89 :group 'gnus-group-listing
90 :type 'regexp)
91
92(defcustom gnus-list-groups-with-ticked-articles t
93 "*If non-nil, list groups that have only ticked articles.
94If nil, only list groups that have unread articles."
95 :group 'gnus-group-listing
96 :type 'boolean)
97
98(defcustom gnus-group-default-list-level gnus-level-subscribed
99 "*Default listing level.
100Ignored if `gnus-group-use-permanent-levels' is non-nil."
101 :group 'gnus-group-listing
102 :type 'integer)
103
104(defcustom gnus-group-list-inactive-groups t
105 "*If non-nil, inactive groups will be listed."
106 :group 'gnus-group-listing
107 :group 'gnus-group-levels
108 :type 'boolean)
109
110(defcustom gnus-group-sort-function 'gnus-group-sort-by-alphabet
111 "*Function used for sorting the group buffer.
112This function will be called with group info entries as the arguments
113for the groups to be sorted. Pre-made functions include
114`gnus-group-sort-by-alphabet', `gnus-group-sort-by-real-name',
115`gnus-group-sort-by-unread', `gnus-group-sort-by-level',
116`gnus-group-sort-by-score', `gnus-group-sort-by-method', and
117`gnus-group-sort-by-rank'.
118
119This variable can also be a list of sorting functions. In that case,
120the most significant sort function should be the last function in the
121list."
122 :group 'gnus-group-listing
123 :link '(custom-manual "(gnus)Sorting Groups")
124 :type '(radio (function-item gnus-group-sort-by-alphabet)
125 (function-item gnus-group-sort-by-real-name)
126 (function-item gnus-group-sort-by-unread)
127 (function-item gnus-group-sort-by-level)
128 (function-item gnus-group-sort-by-score)
129 (function-item gnus-group-sort-by-method)
130 (function-item gnus-group-sort-by-rank)
131 (function :tag "other" nil)))
132
133(defcustom gnus-group-line-format "%M\%S\%p\%P\%5y: %(%g%)%l\n"
134 "*Format of group lines.
135It works along the same lines as a normal formatting string,
136with some simple extensions.
137
138%M Only marked articles (character, \"*\" or \" \")
139%S Whether the group is subscribed (character, \"U\", \"K\", \"Z\" or \" \")
140%L Level of subscribedness (integer)
141%N Number of unread articles (integer)
142%I Number of dormant articles (integer)
143%i Number of ticked and dormant (integer)
144%T Number of ticked articles (integer)
145%R Number of read articles (integer)
146%t Estimated total number of articles (integer)
147%y Number of unread, unticked articles (integer)
148%G Group name (string)
149%g Qualified group name (string)
150%D Group description (string)
151%s Select method (string)
152%o Moderated group (char, \"m\")
153%p Process mark (char)
154%O Moderated group (string, \"(m)\" or \"\")
155%P Topic indentation (string)
156%m Whether there is new(ish) mail in the group (char, \"%\")
157%l Whether there are GroupLens predictions for this group (string)
158%n Select from where (string)
159%z A string that look like `<%s:%n>' if a foreign select method is used
160%d The date the group was last entered.
161%u User defined specifier. The next character in the format string should
162 be a letter. Gnus will call the function gnus-user-format-function-X,
163 where X is the letter following %u. The function will be passed the
164 current header as argument. The function should return a string, which
165 will be inserted into the buffer just like information from any other
166 group specifier.
167
168Text between %( and %) will be highlighted with `gnus-mouse-face' when
169the mouse point move inside the area. There can only be one such area.
170
171Note that this format specification is not always respected. For
172reasons of efficiency, when listing killed groups, this specification
173is ignored altogether. If the spec is changed considerably, your
174output may end up looking strange when listing both alive and killed
175groups.
176
177If you use %o or %O, reading the active file will be slower and quite
178a bit of extra memory will be used. %D will also worsen performance.
179Also note that if you change the format specification to include any
180of these specs, you must probably re-start Gnus to see them go into
181effect."
182 :group 'gnus-group-visual
183 :type 'string)
184
185(defcustom gnus-group-mode-line-format "Gnus: %%b {%M\%:%S}"
186 "*The format specification for the group mode line.
187It works along the same lines as a normal formatting string,
188with some simple extensions:
189
190%S The native news server.
191%M The native select method.
192%: \":\" if %S isn't \"\"."
193 :group 'gnus-group-visual
194 :type 'string)
195
196(defcustom gnus-group-mode-hook nil
197 "Hook for Gnus group mode."
198 :group 'gnus-group-various
199 :options '(gnus-topic-mode)
200 :type 'hook)
201
202(defcustom gnus-group-menu-hook nil
203 "Hook run after the creation of the group mode menu."
204 :group 'gnus-group-various
205 :type 'hook)
206
207(defcustom gnus-group-catchup-group-hook nil
208 "Hook run when catching up a group from the group buffer."
209 :group 'gnus-group-various
210 :link '(custom-manual "(gnus)Group Data")
211 :type 'hook)
212
213(defcustom gnus-group-update-group-hook nil
214 "Hook called when updating group lines."
215 :group 'gnus-group-visual
216 :type 'hook)
217
218(defcustom gnus-group-prepare-function 'gnus-group-prepare-flat
219 "*A function that is called to generate the group buffer.
220The function is called with three arguments: The first is a number;
221all group with a level less or equal to that number should be listed,
222if the second is non-nil, empty groups should also be displayed. If
223the third is non-nil, it is a number. No groups with a level lower
224than this number should be displayed.
225
226The only current function implemented is `gnus-group-prepare-flat'."
227 :group 'gnus-group-listing
228 :type 'function)
229
230(defcustom gnus-group-prepare-hook nil
231 "Hook called after the group buffer has been generated.
232If you want to modify the group buffer, you can use this hook."
233 :group 'gnus-group-listing
234 :type 'hook)
235
236(defcustom gnus-suspend-gnus-hook nil
237 "Hook called when suspending (not exiting) Gnus."
238 :group 'gnus-exit
239 :type 'hook)
240
241(defcustom gnus-exit-gnus-hook nil
242 "Hook called when exiting Gnus."
243 :group 'gnus-exit
244 :type 'hook)
245
246(defcustom gnus-after-exiting-gnus-hook nil
247 "Hook called after exiting Gnus."
248 :group 'gnus-exit
249 :type 'hook)
250
251(defcustom gnus-group-update-hook '(gnus-group-highlight-line)
252 "Hook called when a group line is changed.
253The hook will not be called if `gnus-visual' is nil.
254
255The default function `gnus-group-highlight-line' will
256highlight the line according to the `gnus-group-highlight'
257variable."
258 :group 'gnus-group-visual
259 :type 'hook)
260
261(defcustom gnus-useful-groups
262 `(("(ding) mailing list mirrored at sunsite.auc.dk"
263 "emacs.ding"
264 (nntp "sunsite.auc.dk"
265 (nntp-address "sunsite.auc.dk")))
266 ("Gnus help group"
267 "gnus-help"
268 (nndoc "gnus-help"
269 (nndoc-article-type mbox)
270 (eval `(nndoc-address
271 ,(let ((file (nnheader-find-etc-directory
272 "gnus-tut.txt" t)))
273 (unless file
274 (error "Couldn't find doc group"))
275 file))))))
276 "Alist of useful group-server pairs."
277 :group 'gnus-group-listing
278 :type '(repeat (list (string :tag "Description")
279 (string :tag "Name")
280 (sexp :tag "Method"))))
281
282(defcustom gnus-group-highlight
283 '(;; News.
284 ((and (= unread 0) (not mailp) (eq level 1)) .
285 gnus-group-news-1-empty-face)
286 ((and (not mailp) (eq level 1)) .
287 gnus-group-news-1-face)
288 ((and (= unread 0) (not mailp) (eq level 2)) .
289 gnus-group-news-2-empty-face)
290 ((and (not mailp) (eq level 2)) .
291 gnus-group-news-2-face)
292 ((and (= unread 0) (not mailp) (eq level 3)) .
293 gnus-group-news-3-empty-face)
294 ((and (not mailp) (eq level 3)) .
295 gnus-group-news-3-face)
296 ((and (= unread 0) (not mailp)) .
297 gnus-group-news-low-empty-face)
298 ((and (not mailp)) .
299 gnus-group-news-low-face)
300 ;; Mail.
301 ((and (= unread 0) (eq level 1)) .
302 gnus-group-mail-1-empty-face)
303 ((eq level 1) .
304 gnus-group-mail-1-face)
305 ((and (= unread 0) (eq level 2)) .
306 gnus-group-mail-2-empty-face)
307 ((eq level 2) .
308 gnus-group-mail-2-face)
309 ((and (= unread 0) (eq level 3)) .
310 gnus-group-mail-3-empty-face)
311 ((eq level 3) .
312 gnus-group-mail-3-face)
313 ((= unread 0) .
314 gnus-group-mail-low-empty-face)
315 (t .
316 gnus-group-mail-low-face))
317 "Controls the highlighting of group buffer lines.
318
319Below is a list of `Form'/`Face' pairs. When deciding how a a
320particular group line should be displayed, each form is
321evaluated. The content of the face field after the first true form is
322used. You can change how those group lines are displayed by
323editing the face field.
324
325It is also possible to change and add form fields, but currently that
326requires an understanding of Lisp expressions. Hopefully this will
327change in a future release. For now, you can use the following
328variables in the Lisp expression:
329
330group: The name of the group.
331unread: The number of unread articles in the group.
332method: The select method used.
333mailp: Whether it's a mail group or not.
334level: The level of the group.
335score: The score of the group.
336ticked: The number of ticked articles."
337 :group 'gnus-group-visual
338 :type '(repeat (cons (sexp :tag "Form") face)))
339
340(defcustom gnus-new-mail-mark ?%
341 "Mark used for groups with new mail."
342 :group 'gnus-group-visual
343 :type 'character)
344
345;;; Internal variables
346
347(defvar gnus-group-sort-alist-function 'gnus-group-sort-flat
348 "Function for sorting the group buffer.")
349
350(defvar gnus-group-sort-selected-function 'gnus-group-sort-selected-flat
351 "Function for sorting the selected groups in the group buffer.")
352
353(defvar gnus-group-indentation-function nil)
354(defvar gnus-goto-missing-group-function nil)
355(defvar gnus-group-update-group-function nil)
356(defvar gnus-group-goto-next-group-function nil
357 "Function to override finding the next group after listing groups.")
358
359(defvar gnus-group-edit-buffer nil)
360
361(defvar gnus-group-line-format-alist
362 `((?M gnus-tmp-marked-mark ?c)
363 (?S gnus-tmp-subscribed ?c)
364 (?L gnus-tmp-level ?d)
365 (?N (cond ((eq number t) "*" )
366 ((numberp number)
367 (int-to-string
368 (+ number
369 (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
370 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))))))
371 (t number)) ?s)
372 (?R gnus-tmp-number-of-read ?s)
373 (?t gnus-tmp-number-total ?d)
374 (?y gnus-tmp-number-of-unread ?s)
375 (?I (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked))) ?d)
376 (?T (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))) ?d)
377 (?i (+ (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
378 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked)))) ?d)
379 (?g gnus-tmp-group ?s)
380 (?G gnus-tmp-qualified-group ?s)
381 (?c (gnus-short-group-name gnus-tmp-group) ?s)
382 (?D gnus-tmp-newsgroup-description ?s)
383 (?o gnus-tmp-moderated ?c)
384 (?O gnus-tmp-moderated-string ?s)
385 (?p gnus-tmp-process-marked ?c)
386 (?s gnus-tmp-news-server ?s)
387 (?n gnus-tmp-news-method ?s)
388 (?P gnus-group-indentation ?s)
389 (?l gnus-tmp-grouplens ?s)
390 (?z gnus-tmp-news-method-string ?s)
391 (?m (gnus-group-new-mail gnus-tmp-group) ?c)
392 (?d (gnus-group-timestamp-string gnus-tmp-group) ?s)
393 (?u gnus-tmp-user-defined ?s)))
394
395(defvar gnus-group-mode-line-format-alist
396 `((?S gnus-tmp-news-server ?s)
397 (?M gnus-tmp-news-method ?s)
398 (?u gnus-tmp-user-defined ?s)
399 (?: gnus-tmp-colon ?s)))
400
401(defvar gnus-topic-topology nil
402 "The complete topic hierarchy.")
403
404(defvar gnus-topic-alist nil
405 "The complete topic-group alist.")
406
407(defvar gnus-group-marked nil)
408
409(defvar gnus-group-list-mode nil)
410
411;;;
412;;; Gnus group mode
413;;;
414
415(put 'gnus-group-mode 'mode-class 'special)
416
417(when t
418 (gnus-define-keys gnus-group-mode-map
419 " " gnus-group-read-group
420 "=" gnus-group-select-group
421 "\r" gnus-group-select-group
422 "\M-\r" gnus-group-quick-select-group
423 [(meta control return)] gnus-group-select-group-ephemerally
424 "j" gnus-group-jump-to-group
425 "n" gnus-group-next-unread-group
426 "p" gnus-group-prev-unread-group
427 "\177" gnus-group-prev-unread-group
428 [delete] gnus-group-prev-unread-group
429 "N" gnus-group-next-group
430 "P" gnus-group-prev-group
431 "\M-n" gnus-group-next-unread-group-same-level
432 "\M-p" gnus-group-prev-unread-group-same-level
433 "," gnus-group-best-unread-group
434 "." gnus-group-first-unread-group
435 "u" gnus-group-unsubscribe-current-group
436 "U" gnus-group-unsubscribe-group
437 "c" gnus-group-catchup-current
438 "C" gnus-group-catchup-current-all
439 "\M-c" gnus-group-clear-data
440 "l" gnus-group-list-groups
441 "L" gnus-group-list-all-groups
442 "m" gnus-group-mail
443 "g" gnus-group-get-new-news
444 "\M-g" gnus-group-get-new-news-this-group
445 "R" gnus-group-restart
446 "r" gnus-group-read-init-file
447 "B" gnus-group-browse-foreign-server
448 "b" gnus-group-check-bogus-groups
449 "F" gnus-find-new-newsgroups
450 "\C-c\C-d" gnus-group-describe-group
451 "\M-d" gnus-group-describe-all-groups
452 "\C-c\C-a" gnus-group-apropos
453 "\C-c\M-\C-a" gnus-group-description-apropos
454 "a" gnus-group-post-news
455 "\ek" gnus-group-edit-local-kill
456 "\eK" gnus-group-edit-global-kill
457 "\C-k" gnus-group-kill-group
458 "\C-y" gnus-group-yank-group
459 "\C-w" gnus-group-kill-region
460 "\C-x\C-t" gnus-group-transpose-groups
461 "\C-c\C-l" gnus-group-list-killed
462 "\C-c\C-x" gnus-group-expire-articles
463 "\C-c\M-\C-x" gnus-group-expire-all-groups
464 "V" gnus-version
465 "s" gnus-group-save-newsrc
466 "z" gnus-group-suspend
467 "q" gnus-group-exit
468 "Q" gnus-group-quit
469 "?" gnus-group-describe-briefly
470 "\C-c\C-i" gnus-info-find-node
471 "\M-e" gnus-group-edit-group-method
472 "^" gnus-group-enter-server-mode
473 gnus-mouse-2 gnus-mouse-pick-group
474 "<" beginning-of-buffer
475 ">" end-of-buffer
476 "\C-c\C-b" gnus-bug
477 "\C-c\C-s" gnus-group-sort-groups
478 "t" gnus-topic-mode
479 "\C-c\M-g" gnus-activate-all-groups
480 "\M-&" gnus-group-universal-argument
481 "#" gnus-group-mark-group
482 "\M-#" gnus-group-unmark-group)
483
484 (gnus-define-keys (gnus-group-mark-map "M" gnus-group-mode-map)
485 "m" gnus-group-mark-group
486 "u" gnus-group-unmark-group
487 "w" gnus-group-mark-region
488 "m" gnus-group-mark-buffer
489 "r" gnus-group-mark-regexp
490 "U" gnus-group-unmark-all-groups)
491
492 (gnus-define-keys (gnus-group-group-map "G" gnus-group-mode-map)
493 "d" gnus-group-make-directory-group
494 "h" gnus-group-make-help-group
495 "u" gnus-group-make-useful-group
496 "a" gnus-group-make-archive-group
497 "k" gnus-group-make-kiboze-group
498 "m" gnus-group-make-group
499 "E" gnus-group-edit-group
500 "e" gnus-group-edit-group-method
501 "p" gnus-group-edit-group-parameters
502 "v" gnus-group-add-to-virtual
503 "V" gnus-group-make-empty-virtual
504 "D" gnus-group-enter-directory
505 "f" gnus-group-make-doc-group
506 "w" gnus-group-make-web-group
507 "r" gnus-group-rename-group
508 "c" gnus-group-customize
509 "\177" gnus-group-delete-group
510 [delete] gnus-group-delete-group)
511
512 (gnus-define-keys (gnus-group-soup-map "s" gnus-group-group-map)
513 "b" gnus-group-brew-soup
514 "w" gnus-soup-save-areas
515 "s" gnus-soup-send-replies
516 "p" gnus-soup-pack-packet
517 "r" nnsoup-pack-replies)
518
519 (gnus-define-keys (gnus-group-sort-map "S" gnus-group-group-map)
520 "s" gnus-group-sort-groups
521 "a" gnus-group-sort-groups-by-alphabet
522 "u" gnus-group-sort-groups-by-unread
523 "l" gnus-group-sort-groups-by-level
524 "v" gnus-group-sort-groups-by-score
525 "r" gnus-group-sort-groups-by-rank
526 "m" gnus-group-sort-groups-by-method)
527
528 (gnus-define-keys (gnus-group-sort-selected-map "P" gnus-group-group-map)
529 "s" gnus-group-sort-selected-groups
530 "a" gnus-group-sort-selected-groups-by-alphabet
531 "u" gnus-group-sort-selected-groups-by-unread
532 "l" gnus-group-sort-selected-groups-by-level
533 "v" gnus-group-sort-selected-groups-by-score
534 "r" gnus-group-sort-selected-groups-by-rank
535 "m" gnus-group-sort-selected-groups-by-method)
536
537 (gnus-define-keys (gnus-group-list-map "A" gnus-group-mode-map)
538 "k" gnus-group-list-killed
539 "z" gnus-group-list-zombies
540 "s" gnus-group-list-groups
541 "u" gnus-group-list-all-groups
542 "A" gnus-group-list-active
543 "a" gnus-group-apropos
544 "d" gnus-group-description-apropos
545 "m" gnus-group-list-matching
546 "M" gnus-group-list-all-matching
547 "l" gnus-group-list-level)
548
549 (gnus-define-keys (gnus-group-score-map "W" gnus-group-mode-map)
550 "f" gnus-score-flush-cache)
551
552 (gnus-define-keys (gnus-group-help-map "H" gnus-group-mode-map)
553 "d" gnus-group-describe-group
554 "f" gnus-group-fetch-faq
555 "v" gnus-version)
556
557 (gnus-define-keys (gnus-group-sub-map "S" gnus-group-mode-map)
558 "l" gnus-group-set-current-level
559 "t" gnus-group-unsubscribe-current-group
560 "s" gnus-group-unsubscribe-group
561 "k" gnus-group-kill-group
562 "y" gnus-group-yank-group
563 "w" gnus-group-kill-region
564 "\C-k" gnus-group-kill-level
565 "z" gnus-group-kill-all-zombies))
566
567(defun gnus-group-make-menu-bar ()
568 (gnus-turn-off-edit-menu 'group)
569 (unless (boundp 'gnus-group-reading-menu)
570
571 (easy-menu-define
572 gnus-group-reading-menu gnus-group-mode-map ""
573 '("Group"
574 ["Read" gnus-group-read-group (gnus-group-group-name)]
575 ["Select" gnus-group-select-group (gnus-group-group-name)]
576 ["See old articles" (gnus-group-select-group 'all)
577 :keys "C-u SPC" :active (gnus-group-group-name)]
578 ["Catch up" gnus-group-catchup-current (gnus-group-group-name)]
579 ["Catch up all articles" gnus-group-catchup-current-all
580 (gnus-group-group-name)]
581 ["Check for new articles" gnus-group-get-new-news-this-group
582 (gnus-group-group-name)]
583 ["Toggle subscription" gnus-group-unsubscribe-current-group
584 (gnus-group-group-name)]
585 ["Kill" gnus-group-kill-group (gnus-group-group-name)]
586 ["Yank" gnus-group-yank-group gnus-list-of-killed-groups]
587 ["Describe" gnus-group-describe-group (gnus-group-group-name)]
588 ["Fetch FAQ" gnus-group-fetch-faq (gnus-group-group-name)]
589 ;; Actually one should check, if any of the marked groups gives t for
590 ;; (gnus-check-backend-function 'request-expire-articles ...)
591 ["Expire articles" gnus-group-expire-articles
592 (or (and (gnus-group-group-name)
593 (gnus-check-backend-function
594 'request-expire-articles
595 (gnus-group-group-name))) gnus-group-marked)]
596 ["Set group level" gnus-group-set-current-level
597 (gnus-group-group-name)]
598 ["Select quick" gnus-group-quick-select-group (gnus-group-group-name)]
599 ["Customize" gnus-group-customize (gnus-group-group-name)]
600 ("Edit"
601 ["Parameters" gnus-group-edit-group-parameters
602 (gnus-group-group-name)]
603 ["Select method" gnus-group-edit-group-method
604 (gnus-group-group-name)]
605 ["Info" gnus-group-edit-group (gnus-group-group-name)]
606 ["Local kill file" gnus-group-edit-local-kill (gnus-group-group-name)]
607 ["Global kill file" gnus-group-edit-global-kill t])
608 ))
609
610 (easy-menu-define
611 gnus-group-group-menu gnus-group-mode-map ""
612 '("Groups"
613 ("Listing"
614 ["List unread subscribed groups" gnus-group-list-groups t]
615 ["List (un)subscribed groups" gnus-group-list-all-groups t]
616 ["List killed groups" gnus-group-list-killed gnus-killed-list]
617 ["List zombie groups" gnus-group-list-zombies gnus-zombie-list]
618 ["List level..." gnus-group-list-level t]
619 ["Describe all groups" gnus-group-describe-all-groups t]
620 ["Group apropos..." gnus-group-apropos t]
621 ["Group and description apropos..." gnus-group-description-apropos t]
622 ["List groups matching..." gnus-group-list-matching t]
623 ["List all groups matching..." gnus-group-list-all-matching t]
624 ["List active file" gnus-group-list-active t])
625 ("Sort"
626 ["Default sort" gnus-group-sort-groups t]
627 ["Sort by method" gnus-group-sort-groups-by-method t]
628 ["Sort by rank" gnus-group-sort-groups-by-rank t]
629 ["Sort by score" gnus-group-sort-groups-by-score t]
630 ["Sort by level" gnus-group-sort-groups-by-level t]
631 ["Sort by unread" gnus-group-sort-groups-by-unread t]
632 ["Sort by name" gnus-group-sort-groups-by-alphabet t])
633 ("Sort process/prefixed"
634 ["Default sort" gnus-group-sort-selected-groups
635 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
636 ["Sort by method" gnus-group-sort-selected-groups-by-method
637 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
638 ["Sort by rank" gnus-group-sort-selected-groups-by-rank
639 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
640 ["Sort by score" gnus-group-sort-selected-groups-by-score
641 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
642 ["Sort by level" gnus-group-sort-selected-groups-by-level
643 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
644 ["Sort by unread" gnus-group-sort-selected-groups-by-unread
645 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))]
646 ["Sort by name" gnus-group-sort-selected-groups-by-alphabet
647 (or (not (boundp 'gnus-topic-mode)) (not gnus-topic-mode))])
648 ("Mark"
649 ["Mark group" gnus-group-mark-group
650 (and (gnus-group-group-name)
651 (not (memq (gnus-group-group-name) gnus-group-marked)))]
652 ["Unmark group" gnus-group-unmark-group
653 (and (gnus-group-group-name)
654 (memq (gnus-group-group-name) gnus-group-marked))]
655 ["Unmark all" gnus-group-unmark-all-groups gnus-group-marked]
656 ["Mark regexp..." gnus-group-mark-regexp t]
657 ["Mark region" gnus-group-mark-region t]
658 ["Mark buffer" gnus-group-mark-buffer t]
659 ["Execute command" gnus-group-universal-argument
660 (or gnus-group-marked (gnus-group-group-name))])
661 ("Subscribe"
662 ["Subscribe to a group" gnus-group-unsubscribe-group t]
663 ["Kill all newsgroups in region" gnus-group-kill-region t]
664 ["Kill all zombie groups" gnus-group-kill-all-zombies
665 gnus-zombie-list]
666 ["Kill all groups on level..." gnus-group-kill-level t])
667 ("Foreign groups"
668 ["Make a foreign group" gnus-group-make-group t]
669 ["Add a directory group" gnus-group-make-directory-group t]
670 ["Add the help group" gnus-group-make-help-group t]
671 ["Add the archive group" gnus-group-make-archive-group t]
672 ["Make a doc group" gnus-group-make-doc-group t]
673 ["Make a web group" gnus-group-make-web-group t]
674 ["Make a kiboze group" gnus-group-make-kiboze-group t]
675 ["Make a virtual group" gnus-group-make-empty-virtual t]
676 ["Add a group to a virtual" gnus-group-add-to-virtual t]
677 ["Rename group" gnus-group-rename-group
678 (gnus-check-backend-function
679 'request-rename-group (gnus-group-group-name))]
680 ["Delete group" gnus-group-delete-group
681 (gnus-check-backend-function
682 'request-delete-group (gnus-group-group-name))])
683 ("Move"
684 ["Next" gnus-group-next-group t]
685 ["Previous" gnus-group-prev-group t]
686 ["Next unread" gnus-group-next-unread-group t]
687 ["Previous unread" gnus-group-prev-unread-group t]
688 ["Next unread same level" gnus-group-next-unread-group-same-level t]
689 ["Previous unread same level"
690 gnus-group-prev-unread-group-same-level t]
691 ["Jump to group" gnus-group-jump-to-group t]
692 ["First unread group" gnus-group-first-unread-group t]
693 ["Best unread group" gnus-group-best-unread-group t])
694 ["Delete bogus groups" gnus-group-check-bogus-groups t]
695 ["Find new newsgroups" gnus-find-new-newsgroups t]
696 ["Transpose" gnus-group-transpose-groups
697 (gnus-group-group-name)]
698 ["Read a directory as a group..." gnus-group-enter-directory t]
699 ))
700
701 (easy-menu-define
702 gnus-group-misc-menu gnus-group-mode-map ""
703 '("Misc"
704 ("SOUP"
705 ["Pack replies" nnsoup-pack-replies (fboundp 'nnsoup-request-group)]
706 ["Send replies" gnus-soup-send-replies
707 (fboundp 'gnus-soup-pack-packet)]
708 ["Pack packet" gnus-soup-pack-packet (fboundp 'gnus-soup-pack-packet)]
709 ["Save areas" gnus-soup-save-areas (fboundp 'gnus-soup-pack-packet)]
710 ["Brew SOUP" gnus-soup-brew-soup (fboundp 'gnus-soup-pack-packet)])
711 ["Send a bug report" gnus-bug t]
712 ["Send a mail" gnus-group-mail t]
713 ["Post an article..." gnus-group-post-news t]
714 ["Check for new news" gnus-group-get-new-news t]
715 ["Activate all groups" gnus-activate-all-groups t]
716 ["Restart Gnus" gnus-group-restart t]
717 ["Read init file" gnus-group-read-init-file t]
718 ["Browse foreign server" gnus-group-browse-foreign-server t]
719 ["Enter server buffer" gnus-group-enter-server-mode t]
720 ["Expire all expirable articles" gnus-group-expire-all-groups t]
721 ["Generate any kiboze groups" nnkiboze-generate-groups t]
722 ["Gnus version" gnus-version t]
723 ["Save .newsrc files" gnus-group-save-newsrc t]
724 ["Suspend Gnus" gnus-group-suspend t]
725 ["Clear dribble buffer" gnus-group-clear-dribble t]
726 ["Read manual" gnus-info-find-node t]
727 ["Flush score cache" gnus-score-flush-cache t]
728 ["Toggle topics" gnus-topic-mode t]
729 ["Exit from Gnus" gnus-group-exit t]
730 ["Exit without saving" gnus-group-quit t]
731 ))
732
733 (run-hooks 'gnus-group-menu-hook)))
734
735(defun gnus-group-mode ()
736 "Major mode for reading news.
737
738All normal editing commands are switched off.
739\\<gnus-group-mode-map>
740The group buffer lists (some of) the groups available. For instance,
741`\\[gnus-group-list-groups]' will list all subscribed groups with unread articles, while `\\[gnus-group-list-zombies]'
742lists all zombie groups.
743
744Groups that are displayed can be entered with `\\[gnus-group-read-group]'. To subscribe
745to a group not displayed, type `\\[gnus-group-unsubscribe-group]'.
746
747For more in-depth information on this mode, read the manual (`\\[gnus-info-find-node]').
748
749The following commands are available:
750
751\\{gnus-group-mode-map}"
752 (interactive)
753 (when (gnus-visual-p 'group-menu 'menu)
754 (gnus-group-make-menu-bar))
755 (kill-all-local-variables)
756 (gnus-simplify-mode-line)
757 (setq major-mode 'gnus-group-mode)
758 (setq mode-name "Group")
759 (gnus-group-set-mode-line)
760 (setq mode-line-process nil)
761 (use-local-map gnus-group-mode-map)
762 (buffer-disable-undo (current-buffer))
763 (setq truncate-lines t)
764 (setq buffer-read-only t)
765 (gnus-set-default-directory)
766 (gnus-update-format-specifications nil 'group 'group-mode)
767 (gnus-update-group-mark-positions)
768 (make-local-hook 'post-command-hook)
769 (add-hook 'post-command-hook 'gnus-clear-inboxes-moved nil t)
770 (when gnus-use-undo
771 (gnus-undo-mode 1))
772 (run-hooks 'gnus-group-mode-hook))
773
774(defun gnus-update-group-mark-positions ()
775 (save-excursion
776 (let ((gnus-process-mark 128)
777 (gnus-group-marked '("dummy.group"))
778 (gnus-active-hashtb (make-vector 10 0)))
779 (gnus-set-active "dummy.group" '(0 . 0))
780 (gnus-set-work-buffer)
781 (gnus-group-insert-group-line "dummy.group" 0 nil 0 nil)
782 (goto-char (point-min))
783 (setq gnus-group-mark-positions
784 (list (cons 'process (and (search-forward "\200" nil t)
785 (- (point) 2))))))))
786
787(defun gnus-clear-inboxes-moved ()
788 (setq nnmail-moved-inboxes nil))
789
790(defun gnus-mouse-pick-group (e)
791 "Enter the group under the mouse pointer."
792 (interactive "e")
793 (mouse-set-point e)
794 (gnus-group-read-group nil))
795
796;; Look at LEVEL and find out what the level is really supposed to be.
797;; If LEVEL is non-nil, LEVEL will be returned, if not, what happens
798;; will depend on whether `gnus-group-use-permanent-levels' is used.
799(defun gnus-group-default-level (&optional level number-or-nil)
800 (cond
801 (gnus-group-use-permanent-levels
802 (or (setq gnus-group-use-permanent-levels
803 (or level (if (numberp gnus-group-use-permanent-levels)
804 gnus-group-use-permanent-levels
805 (or gnus-group-default-list-level
806 gnus-level-subscribed))))
807 gnus-group-default-list-level gnus-level-subscribed))
808 (number-or-nil
809 level)
810 (t
811 (or level gnus-group-default-list-level gnus-level-subscribed))))
812
813(defun gnus-group-setup-buffer ()
814 (switch-to-buffer gnus-group-buffer)
815 (unless (eq major-mode 'gnus-group-mode)
816 (gnus-add-current-to-buffer-list)
817 (gnus-group-mode)
818 (when gnus-carpal
819 (gnus-carpal-setup-buffer 'group))))
820
821(defun gnus-group-list-groups (&optional level unread lowest)
822 "List newsgroups with level LEVEL or lower that have unread articles.
823Default is all subscribed groups.
824If argument UNREAD is non-nil, groups with no unread articles are also
825listed.
826
827Also see the `gnus-group-use-permanent-levels' variable."
828 (interactive
829 (list (if current-prefix-arg
830 (prefix-numeric-value current-prefix-arg)
831 (or
832 (gnus-group-default-level nil t)
833 gnus-group-default-list-level
834 gnus-level-subscribed))))
835 ;; Just do this here, for no particular good reason.
836 (gnus-clear-inboxes-moved)
837 (unless level
838 (setq level (car gnus-group-list-mode)
839 unread (cdr gnus-group-list-mode)))
840 (setq level (gnus-group-default-level level))
841 (gnus-group-setup-buffer)
842 (gnus-update-format-specifications nil 'group 'group-mode)
843 (let ((case-fold-search nil)
844 (props (text-properties-at (gnus-point-at-bol)))
845 (empty (= (point-min) (point-max)))
846 (group (gnus-group-group-name))
847 number)
848 (set-buffer gnus-group-buffer)
849 (setq number (funcall gnus-group-prepare-function level unread lowest))
850 (when (or (and (numberp number)
851 (zerop number))
852 (zerop (buffer-size)))
853 ;; No groups in the buffer.
854 (gnus-message 5 gnus-no-groups-message))
855 ;; We have some groups displayed.
856 (goto-char (point-max))
857 (when (or (not gnus-group-goto-next-group-function)
858 (not (funcall gnus-group-goto-next-group-function
859 group props)))
860 (cond
861 (empty
862 (goto-char (point-min)))
863 ((not group)
864 ;; Go to the first group with unread articles.
865 (gnus-group-search-forward t))
866 (t
867 ;; Find the right group to put point on. If the current group
868 ;; has disappeared in the new listing, try to find the next
869 ;; one. If no next one can be found, just leave point at the
870 ;; first newsgroup in the buffer.
871 (when (not (gnus-goto-char
872 (text-property-any
873 (point-min) (point-max)
874 'gnus-group (gnus-intern-safe
875 group gnus-active-hashtb))))
876 (let ((newsrc (cdddr (gnus-gethash group gnus-newsrc-hashtb))))
877 (while (and newsrc
878 (not (gnus-goto-char
879 (text-property-any
880 (point-min) (point-max) 'gnus-group
881 (gnus-intern-safe
882 (caar newsrc) gnus-active-hashtb)))))
883 (setq newsrc (cdr newsrc)))
884 (unless newsrc
885 (goto-char (point-max))
886 (forward-line -1)))))))
887 ;; Adjust cursor point.
888 (gnus-group-position-point)))
889
890(defun gnus-group-list-level (level &optional all)
891 "List groups on LEVEL.
892If ALL (the prefix), also list groups that have no unread articles."
893 (interactive "nList groups on level: \nP")
894 (gnus-group-list-groups level all level))
895
896(defun gnus-group-prepare-flat (level &optional all lowest regexp)
897 "List all newsgroups with unread articles of level LEVEL or lower.
898If ALL is non-nil, list groups that have no unread articles.
899If LOWEST is non-nil, list all newsgroups of level LOWEST or higher.
900If REGEXP, only list groups matching REGEXP."
901 (set-buffer gnus-group-buffer)
902 (let ((buffer-read-only nil)
903 (newsrc (cdr gnus-newsrc-alist))
904 (lowest (or lowest 1))
905 info clevel unread group params)
906 (erase-buffer)
907 (when (< lowest gnus-level-zombie)
908 ;; List living groups.
909 (while newsrc
910 (setq info (car newsrc)
911 group (gnus-info-group info)
912 params (gnus-info-params info)
913 newsrc (cdr newsrc)
914 unread (car (gnus-gethash group gnus-newsrc-hashtb)))
915 (and unread ; This group might be bogus
916 (or (not regexp)
917 (string-match regexp group))
918 (<= (setq clevel (gnus-info-level info)) level)
919 (>= clevel lowest)
920 (or all ; We list all groups?
921 (if (eq unread t) ; Unactivated?
922 gnus-group-list-inactive-groups ; We list unactivated
923 (> unread 0)) ; We list groups with unread articles
924 (and gnus-list-groups-with-ticked-articles
925 (cdr (assq 'tick (gnus-info-marks info))))
926 ; And groups with tickeds
927 ;; Check for permanent visibility.
928 (and gnus-permanently-visible-groups
929 (string-match gnus-permanently-visible-groups
930 group))
931 (memq 'visible params)
932 (cdr (assq 'visible params)))
933 (gnus-group-insert-group-line
934 group (gnus-info-level info)
935 (gnus-info-marks info) unread (gnus-info-method info)))))
936
937 ;; List dead groups.
938 (and (>= level gnus-level-zombie) (<= lowest gnus-level-zombie)
939 (gnus-group-prepare-flat-list-dead
940 (setq gnus-zombie-list (sort gnus-zombie-list 'string<))
941 gnus-level-zombie ?Z
942 regexp))
943 (and (>= level gnus-level-killed) (<= lowest gnus-level-killed)
944 (gnus-group-prepare-flat-list-dead
945 (setq gnus-killed-list (sort gnus-killed-list 'string<))
946 gnus-level-killed ?K regexp))
947
948 (gnus-group-set-mode-line)
949 (setq gnus-group-list-mode (cons level all))
950 (run-hooks 'gnus-group-prepare-hook)
951 t))
952
953(defun gnus-group-prepare-flat-list-dead (groups level mark regexp)
954 ;; List zombies and killed lists somewhat faster, which was
955 ;; suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>. It does
956 ;; this by ignoring the group format specification altogether.
957 (let (group)
958 (if regexp
959 ;; This loop is used when listing groups that match some
960 ;; regexp.
961 (while groups
962 (setq group (pop groups))
963 (when (string-match regexp group)
964 (gnus-add-text-properties
965 (point) (prog1 (1+ (point))
966 (insert " " mark " *: " group "\n"))
967 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
968 'gnus-unread t
969 'gnus-level level))))
970 ;; This loop is used when listing all groups.
971 (while groups
972 (gnus-add-text-properties
973 (point) (prog1 (1+ (point))
974 (insert " " mark " *: "
975 (setq group (pop groups)) "\n"))
976 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
977 'gnus-unread t
978 'gnus-level level))))))
979
980(defun gnus-group-update-group-line ()
981 "Update the current line in the group buffer."
982 (let* ((buffer-read-only nil)
983 (group (gnus-group-group-name))
984 (entry (and group (gnus-gethash group gnus-newsrc-hashtb)))
985 gnus-group-indentation)
986 (when group
987 (and entry
988 (not (gnus-ephemeral-group-p group))
989 (gnus-dribble-enter
990 (concat "(gnus-group-set-info '"
991 (gnus-prin1-to-string (nth 2 entry))
992 ")")))
993 (setq gnus-group-indentation (gnus-group-group-indentation))
994 (gnus-delete-line)
995 (gnus-group-insert-group-line-info group)
996 (forward-line -1)
997 (gnus-group-position-point))))
998
999(defun gnus-group-insert-group-line-info (group)
1000 "Insert GROUP on the current line."
1001 (let ((entry (gnus-gethash group gnus-newsrc-hashtb))
1002 (gnus-group-indentation (gnus-group-group-indentation))
1003 active info)
1004 (if entry
1005 (progn
1006 ;; (Un)subscribed group.
1007 (setq info (nth 2 entry))
1008 (gnus-group-insert-group-line
1009 group (gnus-info-level info) (gnus-info-marks info)
1010 (or (car entry) t) (gnus-info-method info)))
1011 ;; This group is dead.
1012 (gnus-group-insert-group-line
1013 group
1014 (if (member group gnus-zombie-list) gnus-level-zombie gnus-level-killed)
1015 nil
1016 (if (setq active (gnus-active group))
1017 (if (zerop (cdr active))
1018 0
1019 (- (1+ (cdr active)) (car active)))
1020 nil)
1021 nil))))
1022
1023(defun gnus-group-insert-group-line (gnus-tmp-group gnus-tmp-level
1024 gnus-tmp-marked number
1025 gnus-tmp-method)
1026 "Insert a group line in the group buffer."
1027 (let* ((gnus-tmp-active (gnus-active gnus-tmp-group))
1028 (gnus-tmp-number-total
1029 (if gnus-tmp-active
1030 (1+ (- (cdr gnus-tmp-active) (car gnus-tmp-active)))
1031 0))
1032 (gnus-tmp-number-of-unread
1033 (if (numberp number) (int-to-string (max 0 number))
1034 "*"))
1035 (gnus-tmp-number-of-read
1036 (if (numberp number)
1037 (int-to-string (max 0 (- gnus-tmp-number-total number)))
1038 "*"))
1039 (gnus-tmp-subscribed
1040 (cond ((<= gnus-tmp-level gnus-level-subscribed) ? )
1041 ((<= gnus-tmp-level gnus-level-unsubscribed) ?U)
1042 ((= gnus-tmp-level gnus-level-zombie) ?Z)
1043 (t ?K)))
1044 (gnus-tmp-qualified-group (gnus-group-real-name gnus-tmp-group))
1045 (gnus-tmp-newsgroup-description
1046 (if gnus-description-hashtb
1047 (or (gnus-gethash gnus-tmp-group gnus-description-hashtb) "")
1048 ""))
1049 (gnus-tmp-moderated
1050 (if (and gnus-moderated-hashtb
1051 (gnus-gethash gnus-tmp-group gnus-moderated-hashtb))
1052 ?m ? ))
1053 (gnus-tmp-moderated-string
1054 (if (eq gnus-tmp-moderated ?m) "(m)" ""))
1055 (gnus-tmp-method
1056 (gnus-server-get-method gnus-tmp-group gnus-tmp-method))
1057 (gnus-tmp-news-server (or (cadr gnus-tmp-method) ""))
1058 (gnus-tmp-news-method (or (car gnus-tmp-method) ""))
1059 (gnus-tmp-news-method-string
1060 (if gnus-tmp-method
1061 (format "(%s:%s)" (car gnus-tmp-method)
1062 (cadr gnus-tmp-method)) ""))
1063 (gnus-tmp-marked-mark
1064 (if (and (numberp number)
1065 (zerop number)
1066 (cdr (assq 'tick gnus-tmp-marked)))
1067 ?* ? ))
1068 (gnus-tmp-process-marked
1069 (if (member gnus-tmp-group gnus-group-marked)
1070 gnus-process-mark ? ))
1071 (gnus-tmp-grouplens
1072 (or (and gnus-use-grouplens
1073 (bbb-grouplens-group-p gnus-tmp-group))
1074 ""))
1075 (buffer-read-only nil)
1076 header gnus-tmp-header) ; passed as parameter to user-funcs.
1077 (beginning-of-line)
1078 (gnus-add-text-properties
1079 (point)
1080 (prog1 (1+ (point))
1081 ;; Insert the text.
1082 (eval gnus-group-line-format-spec))
1083 `(gnus-group ,(gnus-intern-safe gnus-tmp-group gnus-active-hashtb)
1084 gnus-unread ,(if (numberp number)
1085 (string-to-int gnus-tmp-number-of-unread)
1086 t)
1087 gnus-marked ,gnus-tmp-marked-mark
1088 gnus-indentation ,gnus-group-indentation
1089 gnus-level ,gnus-tmp-level))
1090 (when (inline (gnus-visual-p 'group-highlight 'highlight))
1091 (forward-line -1)
1092 (run-hooks 'gnus-group-update-hook)
1093 (forward-line))
1094 ;; Allow XEmacs to remove front-sticky text properties.
1095 (gnus-group-remove-excess-properties)))
1096
1097(defun gnus-group-highlight-line ()
1098 "Highlight the current line according to `gnus-group-highlight'."
1099 (let* ((list gnus-group-highlight)
1100 (p (point))
1101 (end (progn (end-of-line) (point)))
1102 ;; now find out where the line starts and leave point there.
1103 (beg (progn (beginning-of-line) (point)))
1104 (group (gnus-group-group-name))
1105 (entry (gnus-group-entry group))
1106 (unread (if (numberp (car entry)) (car entry) 0))
1107 (active (gnus-active group))
1108 (total (if active (1+ (- (cdr active) (car active))) 0))
1109 (info (nth 2 entry))
1110 (method (gnus-server-get-method group (gnus-info-method info)))
1111 (marked (gnus-info-marks info))
1112 (mailp (memq 'mail (assoc (symbol-name
1113 (car (or method gnus-select-method)))
1114 gnus-valid-select-methods)))
1115 (level (or (gnus-info-level info) 9))
1116 (score (or (gnus-info-score info) 0))
1117 (ticked (gnus-range-length (cdr (assq 'tick marked))))
1118 (group-age (gnus-group-timestamp-delta group))
1119 (inhibit-read-only t))
1120 ;; Eval the cars of the lists until we find a match.
1121 (while (and list
1122 (not (eval (caar list))))
1123 (setq list (cdr list)))
1124 (let ((face (cdar list)))
1125 (unless (eq face (get-text-property beg 'face))
1126 (gnus-put-text-property
1127 beg end 'face
1128 (setq face (if (boundp face) (symbol-value face) face)))
1129 (gnus-extent-start-open beg)))
1130 (goto-char p)))
1131
1132(defun gnus-group-update-group (group &optional visible-only)
1133 "Update all lines where GROUP appear.
1134If VISIBLE-ONLY is non-nil, the group won't be displayed if it isn't
1135already."
1136 ;; Can't use `save-excursion' here, so we do it manually.
1137 (let ((buf (current-buffer))
1138 mark)
1139 (set-buffer gnus-group-buffer)
1140 (setq mark (point-marker))
1141 ;; The buffer may be narrowed.
1142 (save-restriction
1143 (widen)
1144 (let ((ident (gnus-intern-safe group gnus-active-hashtb))
1145 (loc (point-min))
1146 found buffer-read-only)
1147 ;; Enter the current status into the dribble buffer.
1148 (let ((entry (gnus-gethash group gnus-newsrc-hashtb)))
1149 (when (and entry (not (gnus-ephemeral-group-p group)))
1150 (gnus-dribble-enter
1151 (concat "(gnus-group-set-info '"
1152 (gnus-prin1-to-string (nth 2 entry))
1153 ")"))))
1154 ;; Find all group instances. If topics are in use, each group
1155 ;; may be listed in more than once.
1156 (while (setq loc (text-property-any
1157 loc (point-max) 'gnus-group ident))
1158 (setq found t)
1159 (goto-char loc)
1160 (let ((gnus-group-indentation (gnus-group-group-indentation)))
1161 (gnus-delete-line)
1162 (gnus-group-insert-group-line-info group)
1163 (save-excursion
1164 (forward-line -1)
1165 (run-hooks 'gnus-group-update-group-hook)))
1166 (setq loc (1+ loc)))
1167 (unless (or found visible-only)
1168 ;; No such line in the buffer, find out where it's supposed to
1169 ;; go, and insert it there (or at the end of the buffer).
1170 (if gnus-goto-missing-group-function
1171 (funcall gnus-goto-missing-group-function group)
1172 (let ((entry (cddr (gnus-gethash group gnus-newsrc-hashtb))))
1173 (while (and entry (car entry)
1174 (not
1175 (gnus-goto-char
1176 (text-property-any
1177 (point-min) (point-max)
1178 'gnus-group (gnus-intern-safe
1179 (caar entry) gnus-active-hashtb)))))
1180 (setq entry (cdr entry)))
1181 (or entry (goto-char (point-max)))))
1182 ;; Finally insert the line.
1183 (let ((gnus-group-indentation (gnus-group-group-indentation)))
1184 (gnus-group-insert-group-line-info group)
1185 (save-excursion
1186 (forward-line -1)
1187 (run-hooks 'gnus-group-update-group-hook))))
1188 (when gnus-group-update-group-function
1189 (funcall gnus-group-update-group-function group))
1190 (gnus-group-set-mode-line)))
1191 (goto-char mark)
1192 (set-marker mark nil)
1193 (set-buffer buf)))
1194
1195(defun gnus-group-set-mode-line ()
1196 "Update the mode line in the group buffer."
1197 (when (memq 'group gnus-updated-mode-lines)
1198 ;; Yes, we want to keep this mode line updated.
1199 (save-excursion
1200 (set-buffer gnus-group-buffer)
1201 (let* ((gformat (or gnus-group-mode-line-format-spec
1202 (setq gnus-group-mode-line-format-spec
1203 (gnus-parse-format
1204 gnus-group-mode-line-format
1205 gnus-group-mode-line-format-alist))))
1206 (gnus-tmp-news-server (cadr gnus-select-method))
1207 (gnus-tmp-news-method (car gnus-select-method))
1208 (gnus-tmp-colon (if (equal gnus-tmp-news-server "") "" ":"))
1209 (max-len 60)
1210 gnus-tmp-header ;Dummy binding for user-defined formats
1211 ;; Get the resulting string.
1212 (modified
1213 (and gnus-dribble-buffer
1214 (buffer-name gnus-dribble-buffer)
1215 (buffer-modified-p gnus-dribble-buffer)
1216 (save-excursion
1217 (set-buffer gnus-dribble-buffer)
1218 (not (zerop (buffer-size))))))
1219 (mode-string (eval gformat)))
1220 ;; Say whether the dribble buffer has been modified.
4d5b8182 1221 (setq mode-line-modified (if modified "**" "--"))
eec82323
LMI		 1222 ;; If the line is too long, we chop it off.
1223 (when (> (length mode-string) max-len)
1224 (setq mode-string (substring mode-string 0 (- max-len 4))))
1225 (prog1
1226 (setq mode-line-buffer-identification
1227 (gnus-mode-line-buffer-identification
1228 (list mode-string)))
1229 (set-buffer-modified-p modified))))))
1230
1231(defun gnus-group-group-name ()
1232 "Get the name of the newsgroup on the current line."
1233 (let ((group (get-text-property (gnus-point-at-bol) 'gnus-group)))
1234 (and group (symbol-name group))))
1235
1236(defun gnus-group-group-level ()
1237 "Get the level of the newsgroup on the current line."
1238 (get-text-property (gnus-point-at-bol) 'gnus-level))
1239
1240(defun gnus-group-group-indentation ()
1241 "Get the indentation of the newsgroup on the current line."
1242 (or (get-text-property (gnus-point-at-bol) 'gnus-indentation)
1243 (and gnus-group-indentation-function
1244 (funcall gnus-group-indentation-function))
1245 ""))
1246
1247(defun gnus-group-group-unread ()
1248 "Get the number of unread articles of the newsgroup on the current line."
1249 (get-text-property (gnus-point-at-bol) 'gnus-unread))
1250
1251(defun gnus-group-new-mail (group)
1252 (if (nnmail-new-mail-p (gnus-group-real-name group))
1253 gnus-new-mail-mark
1254 ? ))
1255
1256(defun gnus-group-level (group)
1257 "Return the estimated level of GROUP."
1258 (or (gnus-info-level (gnus-get-info group))
1259 (and (member group gnus-zombie-list) 8)
1260 9))
1261
1262(defun gnus-group-search-forward (&optional backward all level first-too)
1263 "Find the next newsgroup with unread articles.
1264If BACKWARD is non-nil, find the previous newsgroup instead.
1265If ALL is non-nil, just find any newsgroup.
1266If LEVEL is non-nil, find group with level LEVEL, or higher if no such
1267group exists.
1268If FIRST-TOO, the current line is also eligible as a target."
1269 (let ((way (if backward -1 1))
1270 (low gnus-level-killed)
1271 (beg (point))
1272 pos found lev)
1273 (if (and backward (progn (beginning-of-line)) (bobp))
1274 nil
1275 (unless first-too
1276 (forward-line way))
1277 (while (and
1278 (not (eobp))
1279 (not (setq
1280 found
1281 (and (or all
1282 (and
1283 (let ((unread
1284 (get-text-property (point) 'gnus-unread)))
1285 (and (numberp unread) (> unread 0)))
1286 (setq lev (get-text-property (point)
1287 'gnus-level))
1288 (<= lev gnus-level-subscribed)))
1289 (or (not level)
1290 (and (setq lev (get-text-property (point)
1291 'gnus-level))
1292 (or (= lev level)
1293 (and (< lev low)
1294 (< level lev)
1295 (progn
1296 (setq low lev)
1297 (setq pos (point))
1298 nil))))))))
1299 (zerop (forward-line way)))))
1300 (if found
1301 (progn (gnus-group-position-point) t)
1302 (goto-char (or pos beg))
1303 (and pos t))))
1304
1305;;; Gnus group mode commands
1306
1307;; Group marking.
1308
1309(defun gnus-group-mark-group (n &optional unmark no-advance)
1310 "Mark the current group."
1311 (interactive "p")
1312 (let ((buffer-read-only nil)
1313 group)
1314 (while (and (> n 0)
1315 (not (eobp)))
1316 (when (setq group (gnus-group-group-name))
1317 ;; Go to the mark position.
1318 (beginning-of-line)
1319 (forward-char (or (cdr (assq 'process gnus-group-mark-positions)) 2))
1320 (subst-char-in-region
1321 (point) (1+ (point)) (following-char)
1322 (if unmark
1323 (progn
1324 (setq gnus-group-marked (delete group gnus-group-marked))
1325 ? )
1326 (setq gnus-group-marked
1327 (cons group (delete group gnus-group-marked)))
1328 gnus-process-mark)))
1329 (unless no-advance
1330 (gnus-group-next-group 1))
1331 (decf n))
1332 (gnus-summary-position-point)
1333 n))
1334
1335(defun gnus-group-unmark-group (n)
1336 "Remove the mark from the current group."
1337 (interactive "p")
1338 (gnus-group-mark-group n 'unmark)
1339 (gnus-group-position-point))
1340
1341(defun gnus-group-unmark-all-groups ()
1342 "Unmark all groups."
1343 (interactive)
1344 (let ((groups gnus-group-marked))
1345 (save-excursion
1346 (while groups
1347 (gnus-group-remove-mark (pop groups)))))
1348 (gnus-group-position-point))
1349
1350(defun gnus-group-mark-region (unmark beg end)
1351 "Mark all groups between point and mark.
1352If UNMARK, remove the mark instead."
1353 (interactive "P\nr")
1354 (let ((num (count-lines beg end)))
1355 (save-excursion
1356 (goto-char beg)
1357 (- num (gnus-group-mark-group num unmark)))))
1358
1359(defun gnus-group-mark-buffer (&optional unmark)
1360 "Mark all groups in the buffer.
1361If UNMARK, remove the mark instead."
1362 (interactive "P")
1363 (gnus-group-mark-region unmark (point-min) (point-max)))
1364
1365(defun gnus-group-mark-regexp (regexp)
1366 "Mark all groups that match some regexp."
1367 (interactive "sMark (regexp): ")
1368 (let ((alist (cdr gnus-newsrc-alist))
1369 group)
1370 (while alist
1371 (when (string-match regexp (setq group (gnus-info-group (pop alist))))
1372 (gnus-group-set-mark group))))
1373 (gnus-group-position-point))
1374
1375(defun gnus-group-remove-mark (group)
1376 "Remove the process mark from GROUP and move point there.
1377Return nil if the group isn't displayed."
1378 (if (gnus-group-goto-group group)
1379 (save-excursion
1380 (gnus-group-mark-group 1 'unmark t)
1381 t)
1382 (setq gnus-group-marked
1383 (delete group gnus-group-marked))
1384 nil))
1385
1386(defun gnus-group-set-mark (group)
1387 "Set the process mark on GROUP."
1388 (if (gnus-group-goto-group group)
1389 (save-excursion
1390 (gnus-group-mark-group 1 nil t))
1391 (setq gnus-group-marked (cons group (delete group gnus-group-marked)))))
1392
1393(defun gnus-group-universal-argument (arg &optional groups func)
1394 "Perform any command on all groups according to the process/prefix convention."
1395 (interactive "P")
1396 (if (eq (setq func (or func
1397 (key-binding
1398 (read-key-sequence
1399 (substitute-command-keys
1400 "\\<gnus-group-mode-map>\\[gnus-group-universal-argument]")))))
1401 'undefined)
1402 (gnus-error 1 "Undefined key")
1403 (gnus-group-iterate arg
1404 (lambda (group)
1405 (command-execute func))))
1406 (gnus-group-position-point))
1407
1408(defun gnus-group-process-prefix (n)
1409 "Return a list of groups to work on.
1410Take into consideration N (the prefix) and the list of marked groups."
1411 (cond
1412 (n
1413 (setq n (prefix-numeric-value n))
1414 ;; There is a prefix, so we return a list of the N next
1415 ;; groups.
1416 (let ((way (if (< n 0) -1 1))
1417 (n (abs n))
1418 group groups)
1419 (save-excursion
1420 (while (and (> n 0)
1421 (setq group (gnus-group-group-name)))
1422 (push group groups)
1423 (setq n (1- n))
1424 (gnus-group-next-group way)))
1425 (nreverse groups)))
1426 ((gnus-region-active-p)
1427 ;; Work on the region between point and mark.
1428 (let ((max (max (point) (mark)))
1429 groups)
1430 (save-excursion
1431 (goto-char (min (point) (mark)))
1432 (while
1433 (and
1434 (push (gnus-group-group-name) groups)
1435 (zerop (gnus-group-next-group 1))
1436 (< (point) max)))
1437 (nreverse groups))))
1438 (gnus-group-marked
1439 ;; No prefix, but a list of marked articles.
1440 (reverse gnus-group-marked))
1441 (t
1442 ;; Neither marked articles or a prefix, so we return the
1443 ;; current group.
1444 (let ((group (gnus-group-group-name)))
1445 (and group (list group))))))
1446
1447(defun gnus-group-iterate (arg function)
1448 "Iterate FUNCTION over all process/prefixed groups.
1449FUNCTION will be called with the group name as the paremeter
1450and with point over the group in question."
1451 (let ((groups (gnus-group-process-prefix arg))
1452 group)
1453 (while (setq group (pop groups))
1454 (gnus-group-remove-mark group)
1455 (funcall function group))))
1456
1457(put 'gnus-group-iterate 'lisp-indent-function 1)
1458
1459;; Selecting groups.
1460
1461(defun gnus-group-read-group (&optional all no-article group)
1462 "Read news in this newsgroup.
1463If the prefix argument ALL is non-nil, already read articles become
1464readable. IF ALL is a number, fetch this number of articles. If the
1465optional argument NO-ARTICLE is non-nil, no article will be
1466auto-selected upon group entry. If GROUP is non-nil, fetch that
1467group."
1468 (interactive "P")
1469 (let ((no-display (eq all 0))
1470 (group (or group (gnus-group-group-name)))
1471 number active marked entry)
1472 (when (eq all 0)
1473 (setq all nil))
1474 (unless group
1475 (error "No group on current line"))
1476 (setq marked (gnus-info-marks
1477 (nth 2 (setq entry (gnus-gethash
1478 group gnus-newsrc-hashtb)))))
1479 ;; This group might be a dead group. In that case we have to get
1480 ;; the number of unread articles from `gnus-active-hashtb'.
1481 (setq number
1482 (cond ((numberp all) all)
1483 (entry (car entry))
1484 ((setq active (gnus-active group))
1485 (- (1+ (cdr active)) (car active)))))
1486 (gnus-summary-read-group
1487 group (or all (and (numberp number)
1488 (zerop (+ number (gnus-range-length
1489 (cdr (assq 'tick marked)))
1490 (gnus-range-length
1491 (cdr (assq 'dormant marked)))))))
1492 no-article nil no-display)))
1493
1494(defun gnus-group-select-group (&optional all)
1495 "Select this newsgroup.
1496No article is selected automatically.
1497If ALL is non-nil, already read articles become readable.
1498If ALL is a number, fetch this number of articles."
1499 (interactive "P")
1500 (gnus-group-read-group all t))
1501
1502(defun gnus-group-quick-select-group (&optional all)
1503 "Select the current group \"quickly\".
1504This means that no highlighting or scoring will be performed.
1505If ALL (the prefix argument) is 0, don't even generate the summary
1506buffer."
1507 (interactive "P")
1508 (require 'gnus-score)
1509 (let (gnus-visual
1510 gnus-score-find-score-files-function
1511 gnus-home-score-file
1512 gnus-apply-kill-hook
1513 gnus-summary-expunge-below)
1514 (gnus-group-read-group all t)))
1515
1516(defun gnus-group-visible-select-group (&optional all)
1517 "Select the current group without hiding any articles."
1518 (interactive "P")
1519 (let ((gnus-inhibit-limiting t))
1520 (gnus-group-read-group all t)))
1521
1522(defun gnus-group-select-group-ephemerally ()
1523 "Select the current group without doing any processing whatsoever.
1524You will actually be entered into a group that's a copy of
1525the current group; no changes you make while in this group will
1526be permanent."
1527 (interactive)
1528 (require 'gnus-score)
1529 (let* (gnus-visual
1530 gnus-score-find-score-files-function gnus-apply-kill-hook
1531 gnus-summary-expunge-below gnus-show-threads gnus-suppress-duplicates
1532 gnus-summary-mode-hook gnus-select-group-hook
1533 (group (gnus-group-group-name))
1534 (method (gnus-find-method-for-group group)))
1535 (setq method
1536 `(,(car method) ,(concat (cadr method) "-ephemeral")
1537 (,(intern (format "%s-address" (car method))) ,(cadr method))
1538 ,@(cddr method)))
1539 (gnus-group-read-ephemeral-group
1540 (gnus-group-prefixed-name group method) method)))
1541
1542;;;###autoload
1543(defun gnus-fetch-group (group)
1544 "Start Gnus if necessary and enter GROUP.
1545Returns whether the fetching was successful or not."
1546 (interactive "sGroup name: ")
1547 (unless (get-buffer gnus-group-buffer)
1548 (gnus))
1549 (gnus-group-read-group nil nil group))
1550
1551(defvar gnus-ephemeral-group-server 0)
1552
1553;; Enter a group that is not in the group buffer. Non-nil is returned
1554;; if selection was successful.
1555(defun gnus-group-read-ephemeral-group (group method &optional activate
1556 quit-config request-only)
1557 "Read GROUP from METHOD as an ephemeral group.
1558If ACTIVATE, request the group first.
1559If QUIT-CONFIG, use that window configuration when exiting from the
1560ephemeral group.
1561If REQUEST-ONLY, don't actually read the group; just request it.
1562
1563Return the name of the group is selection was successful."
1564 ;; Transform the select method into a unique server.
1565 (let ((saddr (intern (format "%s-address" (car method)))))
1566 (setq method (gnus-copy-sequence method))
1567 (require (car method))
1568 (when (boundp saddr)
1569 (unless (assq saddr method)
1570 (nconc method `((,saddr ,(cadr method))))
1571 (setf (cadr method) (format "%s-%d" (cadr method)
1572 (incf gnus-ephemeral-group-server))))))
1573 (let ((group (if (gnus-group-foreign-p group) group
1574 (gnus-group-prefixed-name group method))))
1575 (gnus-sethash
1576 group
1577 `(-1 nil (,group
1578 ,gnus-level-default-subscribed nil nil ,method
1579 ((quit-config .
1580 ,(if quit-config quit-config
1581 (cons gnus-summary-buffer
1582 gnus-current-window-configuration))))))
1583 gnus-newsrc-hashtb)
1584 (set-buffer gnus-group-buffer)
1585 (unless (gnus-check-server method)
1586 (error "Unable to contact server: %s" (gnus-status-message method)))
1587 (when activate
1588 (gnus-activate-group group 'scan)
1589 (unless (gnus-request-group group)
1590 (error "Couldn't request group: %s"
1591 (nnheader-get-report (car method)))))
1592 (if request-only
1593 group
1594 (condition-case ()
1595 (when (gnus-group-read-group t t group)
1596 group)
1597 ;;(error nil)
1598 (quit nil)))))
1599
1600(defun gnus-group-jump-to-group (group)
1601 "Jump to newsgroup GROUP."
1602 (interactive
1603 (list (completing-read
1604 "Group: " gnus-active-hashtb nil
1605 (gnus-read-active-file-p)
1606 nil
1607 'gnus-group-history)))
1608
1609 (when (equal group "")
1610 (error "Empty group name"))
1611
1612 (unless (gnus-ephemeral-group-p group)
1613 ;; Either go to the line in the group buffer...
1614 (unless (gnus-group-goto-group group)
1615 ;; ... or insert the line.
1616 (gnus-group-update-group group)
1617 (gnus-group-goto-group group)))
1618 ;; Adjust cursor point.
1619 (gnus-group-position-point))
1620
1621(defun gnus-group-goto-group (group &optional far)
1622 "Goto to newsgroup GROUP.
1623If FAR, it is likely that the group is not on the current line."
1624 (when group
1625 (if far
1626 (gnus-goto-char
1627 (text-property-any
1628 (point-min) (point-max)
1629 'gnus-group (gnus-intern-safe group gnus-active-hashtb)))
1630 (beginning-of-line)
1631 (cond
1632 ;; It's quite likely that we are on the right line, so
1633 ;; we check the current line first.
1634 ((eq (get-text-property (point) 'gnus-group)
1635 (gnus-intern-safe group gnus-active-hashtb))
1636 (point))
1637 ;; Previous and next line are also likely, so we check them as well.
1638 ((save-excursion
1639 (forward-line -1)
1640 (eq (get-text-property (point) 'gnus-group)
1641 (gnus-intern-safe group gnus-active-hashtb)))
1642 (forward-line -1)
1643 (point))
1644 ((save-excursion
1645 (forward-line 1)
1646 (eq (get-text-property (point) 'gnus-group)
1647 (gnus-intern-safe group gnus-active-hashtb)))
1648 (forward-line 1)
1649 (point))
1650 (t
1651 ;; Search through the entire buffer.
1652 (gnus-goto-char
1653 (text-property-any
1654 (point-min) (point-max)
1655 'gnus-group (gnus-intern-safe group gnus-active-hashtb))))))))
1656
1657(defun gnus-group-next-group (n &optional silent)
1658 "Go to next N'th newsgroup.
1659If N is negative, search backward instead.
1660Returns the difference between N and the number of skips actually
1661done."
1662 (interactive "p")
1663 (gnus-group-next-unread-group n t nil silent))
1664
1665(defun gnus-group-next-unread-group (n &optional all level silent)
1666 "Go to next N'th unread newsgroup.
1667If N is negative, search backward instead.
1668If ALL is non-nil, choose any newsgroup, unread or not.
1669If LEVEL is non-nil, choose the next group with level LEVEL, or, if no
1670such group can be found, the next group with a level higher than
1671LEVEL.
1672Returns the difference between N and the number of skips actually
1673made."
1674 (interactive "p")
1675 (let ((backward (< n 0))
1676 (n (abs n)))
1677 (while (and (> n 0)
1678 (gnus-group-search-forward
1679 backward (or (not gnus-group-goto-unread) all) level))
1680 (setq n (1- n)))
1681 (when (and (/= 0 n)
1682 (not silent))
1683 (gnus-message 7 "No more%s newsgroups%s" (if all "" " unread")
1684 (if level " on this level or higher" "")))
1685 n))
1686
1687(defun gnus-group-prev-group (n)
1688 "Go to previous N'th newsgroup.
1689Returns the difference between N and the number of skips actually
1690done."
1691 (interactive "p")
1692 (gnus-group-next-unread-group (- n) t))
1693
1694(defun gnus-group-prev-unread-group (n)
1695 "Go to previous N'th unread newsgroup.
1696Returns the difference between N and the number of skips actually
1697done."
1698 (interactive "p")
1699 (gnus-group-next-unread-group (- n)))
1700
1701(defun gnus-group-next-unread-group-same-level (n)
1702 "Go to next N'th unread newsgroup on the same level.
1703If N is negative, search backward instead.
1704Returns the difference between N and the number of skips actually
1705done."
1706 (interactive "p")
1707 (gnus-group-next-unread-group n t (gnus-group-group-level))
1708 (gnus-group-position-point))
1709
1710(defun gnus-group-prev-unread-group-same-level (n)
1711 "Go to next N'th unread newsgroup on the same level.
1712Returns the difference between N and the number of skips actually
1713done."
1714 (interactive "p")
1715 (gnus-group-next-unread-group (- n) t (gnus-group-group-level))
1716 (gnus-group-position-point))
1717
1718(defun gnus-group-best-unread-group (&optional exclude-group)
1719 "Go to the group with the highest level.
1720If EXCLUDE-GROUP, do not go to that group."
1721 (interactive)
1722 (goto-char (point-min))
1723 (let ((best 100000)
1724 unread best-point)
1725 (while (not (eobp))
1726 (setq unread (get-text-property (point) 'gnus-unread))
1727 (when (and (numberp unread) (> unread 0))
1728 (when (and (get-text-property (point) 'gnus-level)
1729 (< (get-text-property (point) 'gnus-level) best)
1730 (or (not exclude-group)
1731 (not (equal exclude-group (gnus-group-group-name)))))
1732 (setq best (get-text-property (point) 'gnus-level))
1733 (setq best-point (point))))
1734 (forward-line 1))
1735 (when best-point
1736 (goto-char best-point))
1737 (gnus-summary-position-point)
1738 (and best-point (gnus-group-group-name))))
1739
1740(defun gnus-group-first-unread-group ()
1741 "Go to the first group with unread articles."
1742 (interactive)
1743 (prog1
1744 (let ((opoint (point))
1745 unread)
1746 (goto-char (point-min))
1747 (if (or (eq (setq unread (gnus-group-group-unread)) t) ; Not active.
1748 (and (numberp unread) ; Not a topic.
1749 (not (zerop unread))) ; Has unread articles.
1750 (zerop (gnus-group-next-unread-group 1))) ; Next unread group.
1751 (point) ; Success.
1752 (goto-char opoint)
1753 nil)) ; Not success.
1754 (gnus-group-position-point)))
1755
1756(defun gnus-group-enter-server-mode ()
1757 "Jump to the server buffer."
1758 (interactive)
1759 (gnus-enter-server-buffer))
1760
1761(defun gnus-group-make-group (name &optional method address args)
1762 "Add a new newsgroup.
1763The user will be prompted for a NAME, for a select METHOD, and an
1764ADDRESS."
1765 (interactive
1766 (list
1767 (gnus-read-group "Group name: ")
1768 (gnus-read-method "From method: ")))
1769
1770 (let* ((meth (when (and method
1771 (not (gnus-server-equal method gnus-select-method)))
1772 (if address (list (intern method) address)
1773 method)))
1774 (nname (if method (gnus-group-prefixed-name name meth) name))
1775 backend info)
1776 (when (gnus-gethash nname gnus-newsrc-hashtb)
1777 (error "Group %s already exists" nname))
1778 ;; Subscribe to the new group.
1779 (gnus-group-change-level
1780 (setq info (list t nname gnus-level-default-subscribed nil nil meth))
1781 gnus-level-default-subscribed gnus-level-killed
1782 (and (gnus-group-group-name)
1783 (gnus-gethash (gnus-group-group-name)
1784 gnus-newsrc-hashtb))
1785 t)
1786 ;; Make it active.
1787 (gnus-set-active nname (cons 1 0))
1788 (unless (gnus-ephemeral-group-p name)
1789 (gnus-dribble-enter
1790 (concat "(gnus-group-set-info '"
1791 (gnus-prin1-to-string (cdr info)) ")")))
1792 ;; Insert the line.
1793 (gnus-group-insert-group-line-info nname)
1794 (forward-line -1)
1795 (gnus-group-position-point)
1796
1797 ;; Load the backend and try to make the backend create
1798 ;; the group as well.
1799 (when (assoc (symbol-name (setq backend (car (gnus-server-get-method
1800 nil meth))))
1801 gnus-valid-select-methods)
1802 (require backend))
1803 (gnus-check-server meth)
1804 (when (gnus-check-backend-function 'request-create-group nname)
1805 (gnus-request-create-group nname nil args))
1806 t))
1807
1808(defun gnus-group-delete-group (group &optional force)
1809 "Delete the current group. Only meaningful with mail groups.
1810If FORCE (the prefix) is non-nil, all the articles in the group will
1811be deleted. This is \"deleted\" as in \"removed forever from the face
1812of the Earth\". There is no undo. The user will be prompted before
1813doing the deletion."
1814 (interactive
1815 (list (gnus-group-group-name)
1816 current-prefix-arg))
1817 (unless group
1818 (error "No group to rename"))
1819 (unless (gnus-check-backend-function 'request-delete-group group)
1820 (error "This backend does not support group deletion"))
1821 (prog1
1822 (if (not (gnus-yes-or-no-p
1823 (format
1824 "Do you really want to delete %s%s? "
1825 group (if force " and all its contents" ""))))
1826 () ; Whew!
1827 (gnus-message 6 "Deleting group %s..." group)
1828 (if (not (gnus-request-delete-group group force))
1829 (gnus-error 3 "Couldn't delete group %s" group)
1830 (gnus-message 6 "Deleting group %s...done" group)
1831 (gnus-group-goto-group group)
1832 (gnus-group-kill-group 1 t)
1833 (gnus-sethash group nil gnus-active-hashtb)
1834 t))
1835 (gnus-group-position-point)))
1836
1837(defun gnus-group-rename-group (group new-name)
1838 "Rename group from GROUP to NEW-NAME.
1839When used interactively, GROUP is the group under point
1840and NEW-NAME will be prompted for."
1841 (interactive
1842 (list
1843 (gnus-group-group-name)
1844 (progn
1845 (unless (gnus-check-backend-function
1846 'request-rename-group (gnus-group-group-name))
1847 (error "This backend does not support renaming groups"))
1848 (gnus-read-group "Rename group to: "
1849 (gnus-group-real-name (gnus-group-group-name))))))
1850
1851 (unless (gnus-check-backend-function 'request-rename-group group)
1852 (error "This backend does not support renaming groups"))
1853 (unless group
1854 (error "No group to rename"))
1855 (when (equal (gnus-group-real-name group) new-name)
1856 (error "Can't rename to the same name"))
1857
1858 ;; We find the proper prefixed name.
1859 (setq new-name
1860 (if (gnus-group-native-p group)
1861 ;; Native group.
1862 new-name
1863 ;; Foreign group.
1864 (gnus-group-prefixed-name
1865 (gnus-group-real-name new-name)
1866 (gnus-info-method (gnus-get-info group)))))
1867
1868 (gnus-message 6 "Renaming group %s to %s..." group new-name)
1869 (prog1
1870 (if (not (gnus-request-rename-group group new-name))
1871 (gnus-error 3 "Couldn't rename group %s to %s" group new-name)
1872 ;; We rename the group internally by killing it...
1873 (gnus-group-goto-group group)
1874 (gnus-group-kill-group)
1875 ;; ... changing its name ...
1876 (setcar (cdar gnus-list-of-killed-groups) new-name)
1877 ;; ... and then yanking it. Magic!
1878 (gnus-group-yank-group)
1879 (gnus-set-active new-name (gnus-active group))
1880 (gnus-message 6 "Renaming group %s to %s...done" group new-name)
1881 new-name)
1882 (gnus-group-position-point)))
1883
1884(defun gnus-group-edit-group (group &optional part)
1885 "Edit the group on the current line."
1886 (interactive (list (gnus-group-group-name)))
1887 (let ((part (or part 'info))
1888 info)
1889 (unless group
1890 (error "No group on current line"))
1891 (unless (setq info (gnus-get-info group))
1892 (error "Killed group; can't be edited"))
1893 (ignore-errors
1894 (gnus-close-group group))
1895 (gnus-edit-form
1896 ;; Find the proper form to edit.
1897 (cond ((eq part 'method)
1898 (or (gnus-info-method info) "native"))
1899 ((eq part 'params)
1900 (gnus-info-params info))
1901 (t info))
1902 ;; The proper documentation.
1903 (format
1904 "Editing the %s for `%s'."
1905 (cond
1906 ((eq part 'method) "select method")
1907 ((eq part 'params) "group parameters")
1908 (t "group info"))
1909 group)
1910 `(lambda (form)
1911 (gnus-group-edit-group-done ',part ,group form)))))
1912
1913(defun gnus-group-edit-group-method (group)
1914 "Edit the select method of GROUP."
1915 (interactive (list (gnus-group-group-name)))
1916 (gnus-group-edit-group group 'method))
1917
1918(defun gnus-group-edit-group-parameters (group)
1919 "Edit the group parameters of GROUP."
1920 (interactive (list (gnus-group-group-name)))
1921 (gnus-group-edit-group group 'params))
1922
1923(defun gnus-group-edit-group-done (part group form)
1924 "Update variables."
1925 (let* ((method (cond ((eq part 'info) (nth 4 form))
1926 ((eq part 'method) form)
1927 (t nil)))
1928 (info (cond ((eq part 'info) form)
1929 ((eq part 'method) (gnus-get-info group))
1930 (t nil)))
1931 (new-group (if info
1932 (if (or (not method)
1933 (gnus-server-equal
1934 gnus-select-method method))
1935 (gnus-group-real-name (car info))
1936 (gnus-group-prefixed-name
1937 (gnus-group-real-name (car info)) method))
1938 nil)))
1939 (when (and new-group
1940 (not (equal new-group group)))
1941 (when (gnus-group-goto-group group)
1942 (gnus-group-kill-group 1))
1943 (gnus-activate-group new-group))
1944 ;; Set the info.
1945 (if (not (and info new-group))
1946 (gnus-group-set-info form (or new-group group) part)
1947 (setq info (gnus-copy-sequence info))
1948 (setcar info new-group)
1949 (unless (gnus-server-equal method "native")
1950 (unless (nthcdr 3 info)
1951 (nconc info (list nil nil)))
1952 (unless (nthcdr 4 info)
1953 (nconc info (list nil)))
1954 (gnus-info-set-method info method))
1955 (gnus-group-set-info info))
1956 (gnus-group-update-group (or new-group group))
1957 (gnus-group-position-point)))
1958
1959(defun gnus-group-make-useful-group (group method)
1960 (interactive
1961 (let ((entry (assoc (completing-read "Create group: " gnus-useful-groups
1962 nil t)
1963 gnus-useful-groups)))
a5d0c44e 1964 (list (cadr entry) (nth 2 entry))))
eec82323
LMI		 1965 (setq method (gnus-copy-sequence method))
1966 (let (entry)
1967 (while (setq entry (memq (assq 'eval method) method))
1968 (setcar entry (eval (cadar entry)))))
1969 (gnus-group-make-group group method))
1970
1971(defun gnus-group-make-help-group ()
1972 "Create the Gnus documentation group."
1973 (interactive)
1974 (let ((name (gnus-group-prefixed-name "gnus-help" '(nndoc "gnus-help")))
1975 (file (nnheader-find-etc-directory "gnus-tut.txt" t))
1976 dir)
1977 (when (gnus-gethash name gnus-newsrc-hashtb)
1978 (error "Documentation group already exists"))
1979 (if (not file)
1980 (gnus-message 1 "Couldn't find doc group")
1981 (gnus-group-make-group
1982 (gnus-group-real-name name)
1983 (list 'nndoc "gnus-help"
1984 (list 'nndoc-address file)
1985 (list 'nndoc-article-type 'mbox)))))
1986 (gnus-group-position-point))
1987
1988(defun gnus-group-make-doc-group (file type)
1989 "Create a group that uses a single file as the source."
1990 (interactive
1991 (list (read-file-name "File name: ")
1992 (and current-prefix-arg 'ask)))
1993 (when (eq type 'ask)
1994 (let ((err "")
1995 char found)
1996 (while (not found)
1997 (message
1998 "%sFile type (mbox, babyl, digest, forward, mmdf, guess) [mbdfag]: "
1999 err)
2000 (setq found (cond ((= (setq char (read-char)) ?m) 'mbox)
2001 ((= char ?b) 'babyl)
2002 ((= char ?d) 'digest)
2003 ((= char ?f) 'forward)
2004 ((= char ?a) 'mmfd)
2005 (t (setq err (format "%c unknown. " char))
2006 nil))))
2007 (setq type found)))
2008 (let* ((file (expand-file-name file))
2009 (name (gnus-generate-new-group-name
2010 (gnus-group-prefixed-name
2011 (file-name-nondirectory file) '(nndoc "")))))
2012 (gnus-group-make-group
2013 (gnus-group-real-name name)
2014 (list 'nndoc file
2015 (list 'nndoc-address file)
2016 (list 'nndoc-article-type (or type 'guess))))))
2017
2018(defvar nnweb-type-definition)
2019(defvar gnus-group-web-type-history nil)
2020(defvar gnus-group-web-search-history nil)
2021(defun gnus-group-make-web-group (&optional solid)
2022 "Create an ephemeral nnweb group.
2023If SOLID (the prefix), create a solid group."
2024 (interactive "P")
2025 (require 'nnweb)
2026 (let* ((group
2027 (if solid (gnus-read-group "Group name: ")
2028 (message-unique-id)))
2029 (type
2030 (completing-read
2031 "Search engine type: "
2032 (mapcar (lambda (elem) (list (symbol-name (car elem))))
2033 nnweb-type-definition)
2034 nil t (cons (or (car gnus-group-web-type-history)
2035 (symbol-name (caar nnweb-type-definition)))
2036 0)
2037 'gnus-group-web-type-history))
2038 (search
2039 (read-string
2040 "Search string: "
2041 (cons (or (car gnus-group-web-search-history) "") 0)
2042 'gnus-group-web-search-history))
2043 (method
2044 `(nnweb ,group (nnweb-search ,search)
2045 (nnweb-type ,(intern type))
2046 (nnweb-ephemeral-p t))))
2047 (if solid
2048 (gnus-group-make-group group "nnweb" "" `(,(intern type) ,search))
2049 (gnus-group-read-ephemeral-group
2050 group method t
2051 (cons (current-buffer)
2052 (if (eq major-mode 'gnus-summary-mode) 'summary 'group))))))
2053
2054(defun gnus-group-make-archive-group (&optional all)
2055 "Create the (ding) Gnus archive group of the most recent articles.
2056Given a prefix, create a full group."
2057 (interactive "P")
2058 (let ((group (gnus-group-prefixed-name
2059 (if all "ding.archives" "ding.recent") '(nndir ""))))
2060 (when (gnus-gethash group gnus-newsrc-hashtb)
2061 (error "Archive group already exists"))
2062 (gnus-group-make-group
2063 (gnus-group-real-name group)
2064 (list 'nndir (if all "hpc" "edu")
2065 (list 'nndir-directory
2066 (if all gnus-group-archive-directory
2067 gnus-group-recent-archive-directory))))
2068 (gnus-group-add-parameter group (cons 'to-address "ding@gnus.org"))))
2069
2070(defun gnus-group-make-directory-group (dir)
2071 "Create an nndir group.
2072The user will be prompted for a directory. The contents of this
2073directory will be used as a newsgroup. The directory should contain
2074mail messages or news articles in files that have numeric names."
2075 (interactive
2076 (list (read-file-name "Create group from directory: ")))
2077 (unless (file-exists-p dir)
2078 (error "No such directory"))
2079 (unless (file-directory-p dir)
2080 (error "Not a directory"))
2081 (let ((ext "")
2082 (i 0)
2083 group)
2084 (while (or (not group) (gnus-gethash group gnus-newsrc-hashtb))
2085 (setq group
2086 (gnus-group-prefixed-name
2087 (concat (file-name-as-directory (directory-file-name dir))
2088 ext)
2089 '(nndir "")))
2090 (setq ext (format "<%d>" (setq i (1+ i)))))
2091 (gnus-group-make-group
2092 (gnus-group-real-name group)
2093 (list 'nndir (gnus-group-real-name group) (list 'nndir-directory dir)))))
2094
2095(defun gnus-group-make-kiboze-group (group address scores)
2096 "Create an nnkiboze group.
2097The user will be prompted for a name, a regexp to match groups, and
2098score file entries for articles to include in the group."
2099 (interactive
2100 (list
2101 (read-string "nnkiboze group name: ")
2102 (read-string "Source groups (regexp): ")
2103 (let ((headers (mapcar (lambda (group) (list group))
2104 '("subject" "from" "number" "date" "message-id"
2105 "references" "chars" "lines" "xref"
2106 "followup" "all" "body" "head")))
2107 scores header regexp regexps)
2108 (while (not (equal "" (setq header (completing-read
2109 "Match on header: " headers nil t))))
2110 (setq regexps nil)
2111 (while (not (equal "" (setq regexp (read-string
2112 (format "Match on %s (string): "
2113 header)))))
2114 (push (list regexp nil nil 'r) regexps))
2115 (push (cons header regexps) scores))
2116 scores)))
2117 (gnus-group-make-group group "nnkiboze" address)
2118 (nnheader-temp-write (gnus-score-file-name (concat "nnkiboze:" group))
2119 (let (emacs-lisp-mode-hook)
2120 (pp scores (current-buffer)))))
2121
2122(defun gnus-group-add-to-virtual (n vgroup)
2123 "Add the current group to a virtual group."
2124 (interactive
2125 (list current-prefix-arg
2126 (completing-read "Add to virtual group: " gnus-newsrc-hashtb nil t
2127 "nnvirtual:")))
2128 (unless (eq (car (gnus-find-method-for-group vgroup)) 'nnvirtual)
2129 (error "%s is not an nnvirtual group" vgroup))
2130 (gnus-close-group vgroup)
2131 (let* ((groups (gnus-group-process-prefix n))
2132 (method (gnus-info-method (gnus-get-info vgroup))))
2133 (setcar (cdr method)
2134 (concat
2135 (nth 1 method) "\\|"
2136 (mapconcat
2137 (lambda (s)
2138 (gnus-group-remove-mark s)
2139 (concat "\\(^" (regexp-quote s) "$\\)"))
2140 groups "\\|"))))
2141 (gnus-group-position-point))
2142
2143(defun gnus-group-make-empty-virtual (group)
2144 "Create a new, fresh, empty virtual group."
2145 (interactive "sCreate new, empty virtual group: ")
2146 (let* ((method (list 'nnvirtual "^$"))
2147 (pgroup (gnus-group-prefixed-name group method)))
2148 ;; Check whether it exists already.
2149 (when (gnus-gethash pgroup gnus-newsrc-hashtb)
2150 (error "Group %s already exists." pgroup))
2151 ;; Subscribe the new group after the group on the current line.
2152 (gnus-subscribe-group pgroup (gnus-group-group-name) method)
2153 (gnus-group-update-group pgroup)
2154 (forward-line -1)
2155 (gnus-group-position-point)))
2156
2157(defun gnus-group-enter-directory (dir)
2158 "Enter an ephemeral nneething group."
2159 (interactive "DDirectory to read: ")
2160 (let* ((method (list 'nneething dir '(nneething-read-only t)))
2161 (leaf (gnus-group-prefixed-name
2162 (file-name-nondirectory (directory-file-name dir))
2163 method))
2164 (name (gnus-generate-new-group-name leaf)))
2165 (unless (gnus-group-read-ephemeral-group
2166 name method t
2167 (cons (current-buffer)
2168 (if (eq major-mode 'gnus-summary-mode)
2169 'summary 'group)))
2170 (error "Couldn't enter %s" dir))))
2171
2172;; Group sorting commands
2173;; Suggested by Joe Hildebrand <hildjj@idaho.fuentez.com>.
2174
2175(defun gnus-group-sort-groups (func &optional reverse)
2176 "Sort the group buffer according to FUNC.
2177When used interactively, the sorting function used will be
2178determined by the `gnus-group-sort-function' variable.
2179If REVERSE (the prefix), reverse the sorting order."
2180 (interactive (list gnus-group-sort-function current-prefix-arg))
2181 (funcall gnus-group-sort-alist-function
2182 (gnus-make-sort-function func) reverse)
2183 (gnus-group-list-groups)
2184 (gnus-dribble-touch))
2185
2186(defun gnus-group-sort-flat (func reverse)
2187 ;; We peel off the dummy group from the alist.
2188 (when func
2189 (when (equal (gnus-info-group (car gnus-newsrc-alist)) "dummy.group")
2190 (pop gnus-newsrc-alist))
2191 ;; Do the sorting.
2192 (setq gnus-newsrc-alist
2193 (sort gnus-newsrc-alist func))
2194 (when reverse
2195 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist)))
2196 ;; Regenerate the hash table.
2197 (gnus-make-hashtable-from-newsrc-alist)))
2198
2199(defun gnus-group-sort-groups-by-alphabet (&optional reverse)
2200 "Sort the group buffer alphabetically by group name.
2201If REVERSE, sort in reverse order."
2202 (interactive "P")
2203 (gnus-group-sort-groups 'gnus-group-sort-by-alphabet reverse))
2204
2205(defun gnus-group-sort-groups-by-unread (&optional reverse)
2206 "Sort the group buffer by number of unread articles.
2207If REVERSE, sort in reverse order."
2208 (interactive "P")
2209 (gnus-group-sort-groups 'gnus-group-sort-by-unread reverse))
2210
2211(defun gnus-group-sort-groups-by-level (&optional reverse)
2212 "Sort the group buffer by group level.
2213If REVERSE, sort in reverse order."
2214 (interactive "P")
2215 (gnus-group-sort-groups 'gnus-group-sort-by-level reverse))
2216
2217(defun gnus-group-sort-groups-by-score (&optional reverse)
2218 "Sort the group buffer by group score.
2219If REVERSE, sort in reverse order."
2220 (interactive "P")
2221 (gnus-group-sort-groups 'gnus-group-sort-by-score reverse))
2222
2223(defun gnus-group-sort-groups-by-rank (&optional reverse)
2224 "Sort the group buffer by group rank.
2225If REVERSE, sort in reverse order."
2226 (interactive "P")
2227 (gnus-group-sort-groups 'gnus-group-sort-by-rank reverse))
2228
2229(defun gnus-group-sort-groups-by-method (&optional reverse)
2230 "Sort the group buffer alphabetically by backend name.
2231If REVERSE, sort in reverse order."
2232 (interactive "P")
2233 (gnus-group-sort-groups 'gnus-group-sort-by-method reverse))
2234
2235;;; Selected group sorting.
2236
2237(defun gnus-group-sort-selected-groups (n func &optional reverse)
2238 "Sort the process/prefixed groups."
2239 (interactive (list current-prefix-arg gnus-group-sort-function))
2240 (let ((groups (gnus-group-process-prefix n)))
2241 (funcall gnus-group-sort-selected-function
2242 groups (gnus-make-sort-function func) reverse)
2243 (gnus-group-list-groups)))
2244
2245(defun gnus-group-sort-selected-flat (groups func reverse)
2246 (let (entries infos)
2247 ;; First find all the group entries for these groups.
2248 (while groups
2249 (push (nthcdr 2 (gnus-gethash (pop groups) gnus-newsrc-hashtb))
2250 entries))
2251 ;; Then sort the infos.
2252 (setq infos
2253 (sort
2254 (mapcar
2255 (lambda (entry) (car entry))
2256 (setq entries (nreverse entries)))
2257 func))
2258 (when reverse
2259 (setq infos (nreverse infos)))
2260 ;; Go through all the infos and replace the old entries
2261 ;; with the new infos.
2262 (while infos
2263 (setcar entries (pop infos))
2264 (pop entries))
2265 ;; Update the hashtable.
2266 (gnus-make-hashtable-from-newsrc-alist)))
2267
2268(defun gnus-group-sort-selected-groups-by-alphabet (&optional reverse)
2269 "Sort the group buffer alphabetically by group name.
2270If REVERSE, sort in reverse order."
2271 (interactive "P")
2272 (gnus-group-sort-selected-groups 'gnus-group-sort-by-alphabet reverse))
2273
2274(defun gnus-group-sort-selected-groups-by-unread (&optional reverse)
2275 "Sort the group buffer by number of unread articles.
2276If REVERSE, sort in reverse order."
2277 (interactive "P")
2278 (gnus-group-sort-selected-groups 'gnus-group-sort-by-unread reverse))
2279
2280(defun gnus-group-sort-selected-groups-by-level (&optional reverse)
2281 "Sort the group buffer by group level.
2282If REVERSE, sort in reverse order."
2283 (interactive "P")
2284 (gnus-group-sort-selected-groups 'gnus-group-sort-by-level reverse))
2285
2286(defun gnus-group-sort-selected-groups-by-score (&optional reverse)
2287 "Sort the group buffer by group score.
2288If REVERSE, sort in reverse order."
2289 (interactive "P")
2290 (gnus-group-sort-selected-groups 'gnus-group-sort-by-score reverse))
2291
2292(defun gnus-group-sort-selected-groups-by-rank (&optional reverse)
2293 "Sort the group buffer by group rank.
2294If REVERSE, sort in reverse order."
2295 (interactive "P")
2296 (gnus-group-sort-selected-groups 'gnus-group-sort-by-rank reverse))
2297
2298(defun gnus-group-sort-selected-groups-by-method (&optional reverse)
2299 "Sort the group buffer alphabetically by backend name.
2300If REVERSE, sort in reverse order."
2301 (interactive "P")
2302 (gnus-group-sort-selected-groups 'gnus-group-sort-by-method reverse))
2303
2304;;; Sorting predicates.
2305
2306(defun gnus-group-sort-by-alphabet (info1 info2)
2307 "Sort alphabetically."
2308 (string< (gnus-info-group info1) (gnus-info-group info2)))
2309
2310(defun gnus-group-sort-by-real-name (info1 info2)
2311 "Sort alphabetically on real (unprefixed) names."
2312 (string< (gnus-group-real-name (gnus-info-group info1))
2313 (gnus-group-real-name (gnus-info-group info2))))
2314
2315(defun gnus-group-sort-by-unread (info1 info2)
2316 "Sort by number of unread articles."
2317 (let ((n1 (car (gnus-gethash (gnus-info-group info1) gnus-newsrc-hashtb)))
2318 (n2 (car (gnus-gethash (gnus-info-group info2) gnus-newsrc-hashtb))))
2319 (< (or (and (numberp n1) n1) 0)
2320 (or (and (numberp n2) n2) 0))))
2321
2322(defun gnus-group-sort-by-level (info1 info2)
2323 "Sort by level."
2324 (< (gnus-info-level info1) (gnus-info-level info2)))
2325
2326(defun gnus-group-sort-by-method (info1 info2)
2327 "Sort alphabetically by backend name."
2328 (string< (symbol-name (car (gnus-find-method-for-group
2329 (gnus-info-group info1) info1)))
2330 (symbol-name (car (gnus-find-method-for-group
2331 (gnus-info-group info2) info2)))))
2332
2333(defun gnus-group-sort-by-score (info1 info2)
2334 "Sort by group score."
2335 (< (gnus-info-score info1) (gnus-info-score info2)))
2336
2337(defun gnus-group-sort-by-rank (info1 info2)
2338 "Sort by level and score."
2339 (let ((level1 (gnus-info-level info1))
2340 (level2 (gnus-info-level info2)))
2341 (or (< level1 level2)
2342 (and (= level1 level2)
2343 (> (gnus-info-score info1) (gnus-info-score info2))))))
2344
2345;;; Clearing data
2346
2347(defun gnus-group-clear-data (&optional arg)
2348 "Clear all marks and read ranges from the current group."
2349 (interactive "P")
2350 (gnus-group-iterate arg
2351 (lambda (group)
2352 (let (info)
2353 (gnus-info-clear-data (setq info (gnus-get-info group)))
2354 (gnus-get-unread-articles-in-group info (gnus-active group) t)
2355 (when (gnus-group-goto-group group)
2356 (gnus-group-update-group-line))))))
2357
2358(defun gnus-group-clear-data-on-native-groups ()
2359 "Clear all marks and read ranges from all native groups."
2360 (interactive)
2361 (when (gnus-yes-or-no-p "Really clear all data from almost all groups? ")
2362 (let ((alist (cdr gnus-newsrc-alist))
2363 info)
2364 (while (setq info (pop alist))
2365 (when (gnus-group-native-p (gnus-info-group info))
2366 (gnus-info-clear-data info)))
2367 (gnus-get-unread-articles)
2368 (gnus-dribble-enter "")
2369 (when (gnus-y-or-n-p
2370 "Move the cache away to avoid problems in the future? ")
2371 (call-interactively 'gnus-cache-move-cache)))))
2372
2373(defun gnus-info-clear-data (info)
2374 "Clear all marks and read ranges from INFO."
2375 (let ((group (gnus-info-group info)))
2376 (gnus-undo-register
2377 `(progn
2378 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
2379 (gnus-info-set-read ',info ',(gnus-info-read info))
2380 (when (gnus-group-goto-group ,group)
2381 (gnus-group-update-group-line))))
2382 (gnus-info-set-read info nil)
2383 (when (gnus-info-marks info)
2384 (gnus-info-set-marks info nil))))
2385
2386;; Group catching up.
2387
2388(defun gnus-group-catchup-current (&optional n all)
2389 "Mark all articles not marked as unread in current newsgroup as read.
2390If prefix argument N is numeric, the ARG next newsgroups will be
2391caught up. If ALL is non-nil, marked articles will also be marked as
2392read. Cross references (Xref: header) of articles are ignored.
2393The difference between N and actual number of newsgroups that were
2394caught up is returned."
2395 (interactive "P")
2396 (unless (gnus-group-group-name)
2397 (error "No group on the current line"))
2398 (let ((groups (gnus-group-process-prefix n))
2399 (ret 0))
2400 (if (not
2401 (or (not gnus-interactive-catchup) ;Without confirmation?
2402 gnus-expert-user
2403 (gnus-y-or-n-p
2404 (format
2405 (if all
2406 "Do you really want to mark all articles in %s as read? "
2407 "Mark all unread articles in %s as read? ")
2408 (if (= (length groups) 1)
2409 (car groups)
2410 (format "these %d groups" (length groups)))))))
2411 n
2412 (while groups
2413 ;; Virtual groups have to be given special treatment.
2414 (let ((method (gnus-find-method-for-group (car groups))))
2415 (when (eq 'nnvirtual (car method))
2416 (nnvirtual-catchup-group
2417 (gnus-group-real-name (car groups)) (nth 1 method) all)))
2418 (gnus-group-remove-mark (car groups))
2419 (if (>= (gnus-group-group-level) gnus-level-zombie)
2420 (gnus-message 2 "Dead groups can't be caught up")
2421 (if (prog1
2422 (gnus-group-goto-group (car groups))
2423 (gnus-group-catchup (car groups) all))
2424 (gnus-group-update-group-line)
2425 (setq ret (1+ ret))))
2426 (setq groups (cdr groups)))
2427 (gnus-group-next-unread-group 1)
2428 ret)))
2429
2430(defun gnus-group-catchup-current-all (&optional n)
2431 "Mark all articles in current newsgroup as read.
2432Cross references (Xref: header) of articles are ignored."
2433 (interactive "P")
2434 (gnus-group-catchup-current n 'all))
2435
2436(defun gnus-group-catchup (group &optional all)
2437 "Mark all articles in GROUP as read.
2438If ALL is non-nil, all articles are marked as read.
2439The return value is the number of articles that were marked as read,
2440or nil if no action could be taken."
2441 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
2442 (num (car entry)))
2443 ;; Do the updating only if the newsgroup isn't killed.
2444 (if (not (numberp (car entry)))
2445 (gnus-message 1 "Can't catch up %s; non-active group" group)
2446 ;; Do auto-expirable marks if that's required.
2447 (when (gnus-group-auto-expirable-p group)
2448 (gnus-add-marked-articles
2449 group 'expire (gnus-list-of-unread-articles group))
2450 (when all
2451 (let ((marks (nth 3 (nth 2 entry))))
2452 (gnus-add-marked-articles
2453 group 'expire (gnus-uncompress-range (cdr (assq 'tick marks))))
2454 (gnus-add-marked-articles
2455 group 'expire (gnus-uncompress-range (cdr (assq 'tick marks)))))))
2456 (when entry
2457 (gnus-update-read-articles group nil)
2458 ;; Also nix out the lists of marks and dormants.
2459 (when all
2460 (gnus-add-marked-articles group 'tick nil nil 'force)
2461 (gnus-add-marked-articles group 'dormant nil nil 'force))
2462 (let ((gnus-newsgroup-name group))
2463 (run-hooks 'gnus-group-catchup-group-hook))
2464 num))))
2465
2466(defun gnus-group-expire-articles (&optional n)
2467 "Expire all expirable articles in the current newsgroup."
2468 (interactive "P")
2469 (let ((groups (gnus-group-process-prefix n))
2470 group)
2471 (unless groups
2472 (error "No groups to expire"))
2473 (while (setq group (pop groups))
2474 (gnus-group-remove-mark group)
2475 (when (gnus-check-backend-function 'request-expire-articles group)
2476 (gnus-message 6 "Expiring articles in %s..." group)
2477 (let* ((info (gnus-get-info group))
2478 (expirable (if (gnus-group-total-expirable-p group)
2479 (cons nil (gnus-list-of-read-articles group))
2480 (assq 'expire (gnus-info-marks info))))
2481 (expiry-wait (gnus-group-find-parameter group 'expiry-wait)))
2482 (when expirable
2483 (setcdr
2484 expirable
2485 (gnus-compress-sequence
2486 (if expiry-wait
2487 ;; We set the expiry variables to the group
2488 ;; parameter.
2489 (let ((nnmail-expiry-wait-function nil)
2490 (nnmail-expiry-wait expiry-wait))
2491 (gnus-request-expire-articles
2492 (gnus-uncompress-sequence (cdr expirable)) group))
2493 ;; Just expire using the normal expiry values.
2494 (gnus-request-expire-articles
2495 (gnus-uncompress-sequence (cdr expirable)) group))))
2496 (gnus-close-group group))
2497 (gnus-message 6 "Expiring articles in %s...done" group)))
2498 (gnus-dribble-touch)
2499 (gnus-group-position-point))))
2500
2501(defun gnus-group-expire-all-groups ()
2502 "Expire all expirable articles in all newsgroups."
2503 (interactive)
2504 (save-excursion
2505 (gnus-message 5 "Expiring...")
2506 (let ((gnus-group-marked (mapcar (lambda (info) (gnus-info-group info))
2507 (cdr gnus-newsrc-alist))))
2508 (gnus-group-expire-articles nil)))
2509 (gnus-group-position-point)
2510 (gnus-message 5 "Expiring...done"))
2511
2512(defun gnus-group-set-current-level (n level)
2513 "Set the level of the next N groups to LEVEL."
2514 (interactive
2515 (list
2516 current-prefix-arg
2517 (string-to-int
2518 (let ((s (read-string
2519 (format "Level (default %s): "
2520 (or (gnus-group-group-level)
2521 gnus-level-default-subscribed)))))
2522 (if (string-match "^\\s-*$" s)
2523 (int-to-string (or (gnus-group-group-level)
2524 gnus-level-default-subscribed))
2525 s)))))
2526 (unless (and (>= level 1) (<= level gnus-level-killed))
2527 (error "Illegal level: %d" level))
2528 (let ((groups (gnus-group-process-prefix n))
2529 group)
2530 (while (setq group (pop groups))
2531 (gnus-group-remove-mark group)
2532 (gnus-message 6 "Changed level of %s from %d to %d"
2533 group (or (gnus-group-group-level) gnus-level-killed)
2534 level)
2535 (gnus-group-change-level
2536 group level (or (gnus-group-group-level) gnus-level-killed))
2537 (gnus-group-update-group-line)))
2538 (gnus-group-position-point))
2539
2540(defun gnus-group-unsubscribe (&optional n)
2541 "Unsubscribe the current group."
2542 (interactive "P")
2543 (gnus-group-unsubscribe-current-group n 'unsubscribe))
2544
2545(defun gnus-group-subscribe (&optional n)
2546 "Subscribe the current group."
2547 (interactive "P")
2548 (gnus-group-unsubscribe-current-group n 'subscribe))
2549
2550(defun gnus-group-unsubscribe-current-group (&optional n do-sub)
2551 "Toggle subscription of the current group.
2552If given numerical prefix, toggle the N next groups."
2553 (interactive "P")
2554 (let ((groups (gnus-group-process-prefix n))
2555 group)
2556 (while groups
2557 (setq group (car groups)
2558 groups (cdr groups))
2559 (gnus-group-remove-mark group)
2560 (gnus-group-unsubscribe-group
2561 group
2562 (cond
2563 ((eq do-sub 'unsubscribe)
2564 gnus-level-default-unsubscribed)
2565 ((eq do-sub 'subscribe)
2566 gnus-level-default-subscribed)
2567 ((<= (gnus-group-group-level) gnus-level-subscribed)
2568 gnus-level-default-unsubscribed)
2569 (t
2570 gnus-level-default-subscribed))
2571 t)
2572 (gnus-group-update-group-line))
2573 (gnus-group-next-group 1)))
2574
2575(defun gnus-group-unsubscribe-group (group &optional level silent)
2576 "Toggle subscription to GROUP.
2577Killed newsgroups are subscribed. If SILENT, don't try to update the
2578group line."
2579 (interactive
2580 (list (completing-read
2581 "Group: " gnus-active-hashtb nil
2582 (gnus-read-active-file-p)
2583 nil
2584 'gnus-group-history)))
2585 (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
2586 (cond
2587 ((string-match "^[ \t]$" group)
2588 (error "Empty group name"))
2589 (newsrc
2590 ;; Toggle subscription flag.
2591 (gnus-group-change-level
2592 newsrc (if level level (if (<= (gnus-info-level (nth 2 newsrc))
2593 gnus-level-subscribed)
2594 (1+ gnus-level-subscribed)
2595 gnus-level-default-subscribed)))
2596 (unless silent
2597 (gnus-group-update-group group)))
2598 ((and (stringp group)
2599 (or (not (gnus-read-active-file-p))
2600 (gnus-active group)))
2601 ;; Add new newsgroup.
2602 (gnus-group-change-level
2603 group
2604 (if level level gnus-level-default-subscribed)
2605 (or (and (member group gnus-zombie-list)
2606 gnus-level-zombie)
2607 gnus-level-killed)
2608 (when (gnus-group-group-name)
2609 (gnus-gethash (gnus-group-group-name) gnus-newsrc-hashtb)))
2610 (unless silent
2611 (gnus-group-update-group group)))
2612 (t (error "No such newsgroup: %s" group)))
2613 (gnus-group-position-point)))
2614
2615(defun gnus-group-transpose-groups (n)
2616 "Move the current newsgroup up N places.
2617If given a negative prefix, move down instead. The difference between
2618N and the number of steps taken is returned."
2619 (interactive "p")
2620 (unless (gnus-group-group-name)
2621 (error "No group on current line"))
2622 (gnus-group-kill-group 1)
2623 (prog1
2624 (forward-line (- n))
2625 (gnus-group-yank-group)
2626 (gnus-group-position-point)))
2627
2628(defun gnus-group-kill-all-zombies ()
2629 "Kill all zombie newsgroups."
2630 (interactive)
2631 (setq gnus-killed-list (nconc gnus-zombie-list gnus-killed-list))
2632 (setq gnus-zombie-list nil)
2633 (gnus-dribble-touch)
2634 (gnus-group-list-groups))
2635
2636(defun gnus-group-kill-region (begin end)
2637 "Kill newsgroups in current region (excluding current point).
2638The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
2639 (interactive "r")
2640 (let ((lines
2641 ;; Count lines.
2642 (save-excursion
2643 (count-lines
2644 (progn
2645 (goto-char begin)
2646 (beginning-of-line)
2647 (point))
2648 (progn
2649 (goto-char end)
2650 (beginning-of-line)
2651 (point))))))
2652 (goto-char begin)
2653 (beginning-of-line) ;Important when LINES < 1
2654 (gnus-group-kill-group lines)))
2655
2656(defun gnus-group-kill-group (&optional n discard)
2657 "Kill the next N groups.
2658The killed newsgroups can be yanked by using \\[gnus-group-yank-group].
2659However, only groups that were alive can be yanked; already killed
2660groups or zombie groups can't be yanked.
2661The return value is the name of the group that was killed, or a list
2662of groups killed."
2663 (interactive "P")
2664 (let ((buffer-read-only nil)
2665 (groups (gnus-group-process-prefix n))
2666 group entry level out)
2667 (if (< (length groups) 10)
2668 ;; This is faster when there are few groups.
2669 (while groups
2670 (push (setq group (pop groups)) out)
2671 (gnus-group-remove-mark group)
2672 (setq level (gnus-group-group-level))
2673 (gnus-delete-line)
2674 (when (and (not discard)
2675 (setq entry (gnus-gethash group gnus-newsrc-hashtb)))
2676 (gnus-undo-register
2677 `(progn
2678 (gnus-group-goto-group ,(gnus-group-group-name))
2679 (gnus-group-yank-group)))
2680 (push (cons (car entry) (nth 2 entry))
2681 gnus-list-of-killed-groups))
2682 (gnus-group-change-level
2683 (if entry entry group) gnus-level-killed (if entry nil level)))
2684 ;; If there are lots and lots of groups to be killed, we use
2685 ;; this thing instead.
2686 (let (entry)
2687 (setq groups (nreverse groups))
2688 (while groups
2689 (gnus-group-remove-mark (setq group (pop groups)))
2690 (gnus-delete-line)
2691 (push group gnus-killed-list)
2692 (setq gnus-newsrc-alist
2693 (delq (assoc group gnus-newsrc-alist)
2694 gnus-newsrc-alist))
2695 (when gnus-group-change-level-function
2696 (funcall gnus-group-change-level-function group 9 3))
2697 (cond
2698 ((setq entry (gnus-gethash group gnus-newsrc-hashtb))
2699 (push (cons (car entry) (nth 2 entry))
2700 gnus-list-of-killed-groups)
2701 (setcdr (cdr entry) (cdddr entry)))
2702 ((member group gnus-zombie-list)
2703 (setq gnus-zombie-list (delete group gnus-zombie-list)))))
2704 (gnus-make-hashtable-from-newsrc-alist)))
2705
2706 (gnus-group-position-point)
2707 (if (< (length out) 2) (car out) (nreverse out))))
2708
2709(defun gnus-group-yank-group (&optional arg)
2710 "Yank the last newsgroups killed with \\[gnus-group-kill-group],
2711inserting it before the current newsgroup. The numeric ARG specifies
2712how many newsgroups are to be yanked. The name of the newsgroup yanked
2713is returned, or (if several groups are yanked) a list of yanked groups
2714is returned."
2715 (interactive "p")
2716 (setq arg (or arg 1))
2717 (let (info group prev out)
2718 (while (>= (decf arg) 0)
2719 (when (not (setq info (pop gnus-list-of-killed-groups)))
2720 (error "No more newsgroups to yank"))
2721 (push (setq group (nth 1 info)) out)
2722 ;; Find which newsgroup to insert this one before - search
2723 ;; backward until something suitable is found. If there are no
2724 ;; other newsgroups in this buffer, just make this newsgroup the
2725 ;; first newsgroup.
2726 (setq prev (gnus-group-group-name))
2727 (gnus-group-change-level
2728 info (gnus-info-level (cdr info)) gnus-level-killed
2729 (and prev (gnus-gethash prev gnus-newsrc-hashtb))
2730 t)
2731 (gnus-group-insert-group-line-info group)
2732 (gnus-undo-register
2733 `(when (gnus-group-goto-group ,group)
2734 (gnus-group-kill-group 1))))
2735 (forward-line -1)
2736 (gnus-group-position-point)
2737 (if (< (length out) 2) (car out) (nreverse out))))
2738
2739(defun gnus-group-kill-level (level)
2740 "Kill all groups that is on a certain LEVEL."
2741 (interactive "nKill all groups on level: ")
2742 (cond
2743 ((= level gnus-level-zombie)
2744 (setq gnus-killed-list
2745 (nconc gnus-zombie-list gnus-killed-list))
2746 (setq gnus-zombie-list nil))
2747 ((and (< level gnus-level-zombie)
2748 (> level 0)
2749 (or gnus-expert-user
2750 (gnus-yes-or-no-p
2751 (format
2752 "Do you really want to kill all groups on level %d? "
2753 level))))
2754 (let* ((prev gnus-newsrc-alist)
2755 (alist (cdr prev)))
2756 (while alist
2757 (if (= (gnus-info-level (car alist)) level)
2758 (progn
2759 (push (gnus-info-group (car alist)) gnus-killed-list)
2760 (setcdr prev (cdr alist)))
2761 (setq prev alist))
2762 (setq alist (cdr alist)))
2763 (gnus-make-hashtable-from-newsrc-alist)
2764 (gnus-group-list-groups)))
2765 (t
2766 (error "Can't kill; illegal level: %d" level))))
2767
2768(defun gnus-group-list-all-groups (&optional arg)
2769 "List all newsgroups with level ARG or lower.
2770Default is gnus-level-unsubscribed, which lists all subscribed and most
2771unsubscribed groups."
2772 (interactive "P")
2773 (gnus-group-list-groups (or arg gnus-level-unsubscribed) t))
2774
2775;; Redefine this to list ALL killed groups if prefix arg used.
2776;; Rewritten by engstrom@src.honeywell.com (Eric Engstrom).
2777(defun gnus-group-list-killed (&optional arg)
2778 "List all killed newsgroups in the group buffer.
2779If ARG is non-nil, list ALL killed groups known to Gnus. This may
2780entail asking the server for the groups."
2781 (interactive "P")
2782 ;; Find all possible killed newsgroups if arg.
2783 (when arg
2784 (gnus-get-killed-groups))
2785 (if (not gnus-killed-list)
2786 (gnus-message 6 "No killed groups")
2787 (let (gnus-group-list-mode)
2788 (funcall gnus-group-prepare-function
2789 gnus-level-killed t gnus-level-killed))
2790 (goto-char (point-min)))
2791 (gnus-group-position-point))
2792
2793(defun gnus-group-list-zombies ()
2794 "List all zombie newsgroups in the group buffer."
2795 (interactive)
2796 (if (not gnus-zombie-list)
2797 (gnus-message 6 "No zombie groups")
2798 (let (gnus-group-list-mode)
2799 (funcall gnus-group-prepare-function
2800 gnus-level-zombie t gnus-level-zombie))
2801 (goto-char (point-min)))
2802 (gnus-group-position-point))
2803
2804(defun gnus-group-list-active ()
2805 "List all groups that are available from the server(s)."
2806 (interactive)
2807 ;; First we make sure that we have really read the active file.
2808 (unless (gnus-read-active-file-p)
2809 (let ((gnus-read-active-file t))
2810 (gnus-read-active-file)))
2811 ;; Find all groups and sort them.
2812 (let ((groups
2813 (sort
2814 (let (list)
2815 (mapatoms
2816 (lambda (sym)
2817 (and (boundp sym)
2818 (symbol-value sym)
2819 (push (symbol-name sym) list)))
2820 gnus-active-hashtb)
2821 list)
2822 'string<))
2823 (buffer-read-only nil)
2824 group)
2825 (erase-buffer)
2826 (while groups
2827 (gnus-add-text-properties
2828 (point) (prog1 (1+ (point))
2829 (insert " *: "
2830 (setq group (pop groups)) "\n"))
2831 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
2832 'gnus-unread t
2833 'gnus-level (inline (gnus-group-level group)))))
2834 (goto-char (point-min))))
2835
2836(defun gnus-activate-all-groups (level)
2837 "Activate absolutely all groups."
2838 (interactive (list 7))
2839 (let ((gnus-activate-level level)
2840 (gnus-activate-foreign-newsgroups level))
2841 (gnus-group-get-new-news)))
2842
2843(defun gnus-group-get-new-news (&optional arg)
2844 "Get newly arrived articles.
2845If ARG is a number, it specifies which levels you are interested in
2846re-scanning. If ARG is non-nil and not a number, this will force
2847\"hard\" re-reading of the active files from all servers."
2848 (interactive "P")
2849 (let ((gnus-inhibit-demon t))
2850 (run-hooks 'gnus-get-new-news-hook)
2851
2852 ;; Read any slave files.
2853 (unless gnus-slave
2854 (gnus-master-read-slave-newsrc))
2855
2856 ;; We might read in new NoCeM messages here.
2857 (when (and gnus-use-nocem
2858 (null arg))
2859 (gnus-nocem-scan-groups))
2860 ;; If ARG is not a number, then we read the active file.
2861 (when (and arg (not (numberp arg)))
2862 (let ((gnus-read-active-file t))
2863 (gnus-read-active-file))
2864 (setq arg nil)
2865
2866 ;; If the user wants it, we scan for new groups.
2867 (when (eq gnus-check-new-newsgroups 'always)
2868 (gnus-find-new-newsgroups)))
2869
2870 (setq arg (gnus-group-default-level arg t))
2871 (if (and gnus-read-active-file (not arg))
2872 (progn
2873 (gnus-read-active-file)
2874 (gnus-get-unread-articles arg))
2875 (let ((gnus-read-active-file (if arg nil gnus-read-active-file)))
2876 (gnus-get-unread-articles arg)))
2877 (run-hooks 'gnus-after-getting-new-news-hook)
2878 (gnus-group-list-groups (and (numberp arg)
2879 (max (car gnus-group-list-mode) arg)))))
2880
2881(defun gnus-group-get-new-news-this-group (&optional n)
2882 "Check for newly arrived news in the current group (and the N-1 next groups).
2883The difference between N and the number of newsgroup checked is returned.
2884If N is negative, this group and the N-1 previous groups will be checked."
2885 (interactive "P")
2886 (let* ((groups (gnus-group-process-prefix n))
2887 (ret (if (numberp n) (- n (length groups)) 0))
2888 (beg (unless n
2889 (point)))
2890 group)
2891 (while (setq group (pop groups))
2892 (gnus-group-remove-mark group)
2893 ;; Bypass any previous denials from the server.
2894 (gnus-remove-denial (gnus-find-method-for-group group))
2895 (if (gnus-activate-group group 'scan)
2896 (progn
2897 (gnus-get-unread-articles-in-group
2898 (gnus-get-info group) (gnus-active group) t)
2899 (unless (gnus-virtual-group-p group)
2900 (gnus-close-group group))
2901 (gnus-group-update-group group))
2902 (if (eq (gnus-server-status (gnus-find-method-for-group group))
2903 'denied)
2904 (gnus-error 3 "Server denied access")
2905 (gnus-error 3 "%s error: %s" group (gnus-status-message group)))))
2906 (when beg
2907 (goto-char beg))
2908 (when gnus-goto-next-group-when-activating
2909 (gnus-group-next-unread-group 1 t))
2910 (gnus-summary-position-point)
2911 ret))
2912
2913(defun gnus-group-fetch-faq (group &optional faq-dir)
2914 "Fetch the FAQ for the current group.
2915If given a prefix argument, prompt for the FAQ dir
2916to use."
2917 (interactive
2918 (list
2919 (gnus-group-group-name)
2920 (cond (current-prefix-arg
2921 (completing-read
2922 "Faq dir: " (and (listp gnus-group-faq-directory)
2923 (mapcar (lambda (file) (list file))
2924 gnus-group-faq-directory)))))))
2925 (unless group
2926 (error "No group name given"))
2927 (let ((dirs (or faq-dir gnus-group-faq-directory))
2928 dir found file)
2929 (unless (listp dirs)
2930 (setq dirs (list dirs)))
2931 (while (and (not found)
2932 (setq dir (pop dirs)))
2933 (setq file (concat (file-name-as-directory dir)
2934 (gnus-group-real-name group)))
2935 (if (not (file-exists-p file))
2936 (gnus-message 1 "No such file: %s" file)
2937 (let ((enable-local-variables nil))
2938 (find-file file)
2939 (setq found t))))))
2940
2941(defun gnus-group-describe-group (force &optional group)
2942 "Display a description of the current newsgroup."
2943 (interactive (list current-prefix-arg (gnus-group-group-name)))
2944 (let* ((method (gnus-find-method-for-group group))
2945 (mname (gnus-group-prefixed-name "" method))
2946 desc)
2947 (when (and force
2948 gnus-description-hashtb)
2949 (gnus-sethash mname nil gnus-description-hashtb))
2950 (unless group
2951 (error "No group name given"))
2952 (when (or (and gnus-description-hashtb
2953 ;; We check whether this group's method has been
2954 ;; queried for a description file.
2955 (gnus-gethash mname gnus-description-hashtb))
2956 (setq desc (gnus-group-get-description group))
2957 (gnus-read-descriptions-file method))
2958 (gnus-message 1
2959 (or desc (gnus-gethash group gnus-description-hashtb)
2960 "No description available")))))
2961
2962;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
2963(defun gnus-group-describe-all-groups (&optional force)
2964 "Pop up a buffer with descriptions of all newsgroups."
2965 (interactive "P")
2966 (when force
2967 (setq gnus-description-hashtb nil))
2968 (when (not (or gnus-description-hashtb
2969 (gnus-read-all-descriptions-files)))
2970 (error "Couldn't request descriptions file"))
2971 (let ((buffer-read-only nil)
2972 b)
2973 (erase-buffer)
2974 (mapatoms
2975 (lambda (group)
2976 (setq b (point))
2977 (insert (format " *: %-20s %s\n" (symbol-name group)
2978 (symbol-value group)))
2979 (gnus-add-text-properties
2980 b (1+ b) (list 'gnus-group group
2981 'gnus-unread t 'gnus-marked nil
2982 'gnus-level (1+ gnus-level-subscribed))))
2983 gnus-description-hashtb)
2984 (goto-char (point-min))
2985 (gnus-group-position-point)))
2986
2987;; Suggested by Daniel Quinlan <quinlan@best.com>.
2988(defun gnus-group-apropos (regexp &optional search-description)
2989 "List all newsgroups that have names that match a regexp."
2990 (interactive "sGnus apropos (regexp): ")
2991 (let ((prev "")
2992 (obuf (current-buffer))
2993 groups des)
2994 ;; Go through all newsgroups that are known to Gnus.
2995 (mapatoms
2996 (lambda (group)
2997 (and (symbol-name group)
2998 (string-match regexp (symbol-name group))
2999 (push (symbol-name group) groups)))
3000 gnus-active-hashtb)
3001 ;; Also go through all descriptions that are known to Gnus.
3002 (when search-description
3003 (mapatoms
3004 (lambda (group)
3005 (and (string-match regexp (symbol-value group))
3006 (gnus-active (symbol-name group))
3007 (push (symbol-name group) groups)))
3008 gnus-description-hashtb))
3009 (if (not groups)
3010 (gnus-message 3 "No groups matched \"%s\"." regexp)
3011 ;; Print out all the groups.
3012 (save-excursion
3013 (pop-to-buffer "*Gnus Help*")
3014 (buffer-disable-undo (current-buffer))
3015 (erase-buffer)
3016 (setq groups (sort groups 'string<))
3017 (while groups
3018 ;; Groups may be entered twice into the list of groups.
3019 (when (not (string= (car groups) prev))
3020 (insert (setq prev (car groups)) "\n")
3021 (when (and gnus-description-hashtb
3022 (setq des (gnus-gethash (car groups)
3023 gnus-description-hashtb)))
3024 (insert " " des "\n")))
3025 (setq groups (cdr groups)))
3026 (goto-char (point-min))))
3027 (pop-to-buffer obuf)))
3028
3029(defun gnus-group-description-apropos (regexp)
3030 "List all newsgroups that have names or descriptions that match a regexp."
3031 (interactive "sGnus description apropos (regexp): ")
3032 (when (not (or gnus-description-hashtb
3033 (gnus-read-all-descriptions-files)))
3034 (error "Couldn't request descriptions file"))
3035 (gnus-group-apropos regexp t))
3036
3037;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
3038(defun gnus-group-list-matching (level regexp &optional all lowest)
3039 "List all groups with unread articles that match REGEXP.
3040If the prefix LEVEL is non-nil, it should be a number that says which
3041level to cut off listing groups.
3042If ALL, also list groups with no unread articles.
3043If LOWEST, don't list groups with level lower than LOWEST.
3044
3045This command may read the active file."
3046 (interactive "P\nsList newsgroups matching: ")
3047 ;; First make sure active file has been read.
3048 (when (and level
3049 (> (prefix-numeric-value level) gnus-level-killed))
3050 (gnus-get-killed-groups))
3051 (gnus-group-prepare-flat
3052 (or level gnus-level-subscribed) all (or lowest 1) regexp)
3053 (goto-char (point-min))
3054 (gnus-group-position-point))
3055
3056(defun gnus-group-list-all-matching (level regexp &optional lowest)
3057 "List all groups that match REGEXP.
3058If the prefix LEVEL is non-nil, it should be a number that says which
3059level to cut off listing groups.
3060If LOWEST, don't list groups with level lower than LOWEST."
3061 (interactive "P\nsList newsgroups matching: ")
3062 (when level
3063 (setq level (prefix-numeric-value level)))
3064 (gnus-group-list-matching (or level gnus-level-killed) regexp t lowest))
3065
3066;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
3067(defun gnus-group-save-newsrc (&optional force)
3068 "Save the Gnus startup files.
3069If FORCE, force saving whether it is necessary or not."
3070 (interactive "P")
3071 (gnus-save-newsrc-file force))
3072
3073(defun gnus-group-restart (&optional arg)
3074 "Force Gnus to read the .newsrc file."
3075 (interactive "P")
3076 (when (gnus-yes-or-no-p
3077 (format "Are you sure you want to restart Gnus? "))
3078 (gnus-save-newsrc-file)
3079 (gnus-clear-system)
3080 (gnus)))
3081
3082(defun gnus-group-read-init-file ()
3083 "Read the Gnus elisp init file."
3084 (interactive)
3085 (gnus-read-init-file))
3086
3087(defun gnus-group-check-bogus-groups (&optional silent)
3088 "Check bogus newsgroups.
3089If given a prefix, don't ask for confirmation before removing a bogus
3090group."
3091 (interactive "P")
3092 (gnus-check-bogus-newsgroups (and (not silent) (not gnus-expert-user)))
3093 (gnus-group-list-groups))
3094
3095(defun gnus-group-edit-global-kill (&optional article group)
3096 "Edit the global kill file.
3097If GROUP, edit that local kill file instead."
3098 (interactive "P")
3099 (setq gnus-current-kill-article article)
3100 (gnus-kill-file-edit-file group)
3101 (gnus-message
3102 6
3103 (substitute-command-keys
3104 (format "Editing a %s kill file (Type \\[gnus-kill-file-exit] to exit)"
3105 (if group "local" "global")))))
3106
3107(defun gnus-group-edit-local-kill (article group)
3108 "Edit a local kill file."
3109 (interactive (list nil (gnus-group-group-name)))
3110 (gnus-group-edit-global-kill article group))
3111
3112(defun gnus-group-force-update ()
3113 "Update `.newsrc' file."
3114 (interactive)
3115 (gnus-save-newsrc-file))
3116
3117(defun gnus-group-suspend ()
3118 "Suspend the current Gnus session.
3119In fact, cleanup buffers except for group mode buffer.
3120The hook gnus-suspend-gnus-hook is called before actually suspending."
3121 (interactive)
3122 (run-hooks 'gnus-suspend-gnus-hook)
3123 ;; Kill Gnus buffers except for group mode buffer.
3124 (let* ((group-buf (get-buffer gnus-group-buffer))
3125 ;; Do this on a separate list in case the user does a ^G before we finish
3126 (gnus-buffer-list
3127 (delete group-buf (delete gnus-dribble-buffer
3128 (append gnus-buffer-list nil)))))
3129 (while gnus-buffer-list
3130 (gnus-kill-buffer (pop gnus-buffer-list)))
3131 (gnus-kill-gnus-frames)
3132 (when group-buf
3133 (setq gnus-buffer-list (list group-buf))
3134 (bury-buffer group-buf)
3135 (delete-windows-on group-buf t))))
3136
3137(defun gnus-group-clear-dribble ()
3138 "Clear all information from the dribble buffer."
3139 (interactive)
3140 (gnus-dribble-clear)
3141 (gnus-message 7 "Cleared dribble buffer"))
3142
3143(defun gnus-group-exit ()
3144 "Quit reading news after updating .newsrc.eld and .newsrc.
3145The hook `gnus-exit-gnus-hook' is called before actually exiting."
3146 (interactive)
3147 (when
3148 (or noninteractive ;For gnus-batch-kill
3149 (not gnus-interactive-exit) ;Without confirmation
3150 gnus-expert-user
3151 (gnus-y-or-n-p "Are you sure you want to quit reading news? "))
3152 (run-hooks 'gnus-exit-gnus-hook)
3153 ;; Offer to save data from non-quitted summary buffers.
3154 (gnus-offer-save-summaries)
3155 ;; Save the newsrc file(s).
3156 (gnus-save-newsrc-file)
3157 ;; Kill-em-all.
3158 (gnus-close-backends)
3159 ;; Reset everything.
3160 (gnus-clear-system)
3161 ;; Allow the user to do things after cleaning up.
3162 (run-hooks 'gnus-after-exiting-gnus-hook)))
3163
3164(defun gnus-group-quit ()
3165 "Quit reading news without updating .newsrc.eld or .newsrc.
3166The hook `gnus-exit-gnus-hook' is called before actually exiting."
3167 (interactive)
3168 (when (or noninteractive ;For gnus-batch-kill
3169 (zerop (buffer-size))
3170 (not (gnus-server-opened gnus-select-method))
3171 gnus-expert-user
3172 (not gnus-current-startup-file)
3173 (gnus-yes-or-no-p
3174 (format "Quit reading news without saving %s? "
3175 (file-name-nondirectory gnus-current-startup-file))))
3176 (run-hooks 'gnus-exit-gnus-hook)
3177 (gnus-configure-windows 'group t)
3178 (gnus-dribble-save)
3179 (gnus-close-backends)
3180 (gnus-clear-system)
3181 (gnus-kill-buffer gnus-group-buffer)
3182 ;; Allow the user to do things after cleaning up.
3183 (run-hooks 'gnus-after-exiting-gnus-hook)))
3184
3185(defun gnus-group-describe-briefly ()
3186 "Give a one line description of the group mode commands."
3187 (interactive)
3188 (gnus-message 7 (substitute-command-keys "\\<gnus-group-mode-map>\\[gnus-group-read-group]:Select \\[gnus-group-next-unread-group]:Forward \\[gnus-group-prev-unread-group]:Backward \\[gnus-group-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-group-describe-briefly]:This help")))
3189
3190(defun gnus-group-browse-foreign-server (method)
3191 "Browse a foreign news server.
3192If called interactively, this function will ask for a select method
3193 (nntp, nnspool, etc.) and a server address (eg. nntp.some.where).
3194If not, METHOD should be a list where the first element is the method
3195and the second element is the address."
3196 (interactive
3197 (list (let ((how (completing-read
3198 "Which backend: "
3199 (append gnus-valid-select-methods gnus-server-alist)
3200 nil t (cons "nntp" 0) 'gnus-method-history)))
3201 ;; We either got a backend name or a virtual server name.
3202 ;; If the first, we also need an address.
3203 (if (assoc how gnus-valid-select-methods)
3204 (list (intern how)
3205 ;; Suggested by mapjph@bath.ac.uk.
3206 (completing-read
3207 "Address: "
3208 (mapcar (lambda (server) (list server))
3209 gnus-secondary-servers)))
3210 ;; We got a server name.
3211 how))))
3212 (gnus-browse-foreign-server method))
3213
3214(defun gnus-group-set-info (info &optional method-only-group part)
3215 (let* ((entry (gnus-gethash
3216 (or method-only-group (gnus-info-group info))
3217 gnus-newsrc-hashtb))
3218 (part-info info)
3219 (info (if method-only-group (nth 2 entry) info))
3220 method)
3221 (when method-only-group
3222 (unless entry
3223 (error "Trying to change non-existent group %s" method-only-group))
3224 ;; We have received parts of the actual group info - either the
3225 ;; select method or the group parameters. We first check
3226 ;; whether we have to extend the info, and if so, do that.
3227 (let ((len (length info))
3228 (total (if (eq part 'method) 5 6)))
3229 (when (< len total)
3230 (setcdr (nthcdr (1- len) info)
3231 (make-list (- total len) nil)))
3232 ;; Then we enter the new info.
3233 (setcar (nthcdr (1- total) info) part-info)))
3234 (unless entry
3235 ;; This is a new group, so we just create it.
3236 (save-excursion
3237 (set-buffer gnus-group-buffer)
3238 (setq method (gnus-info-method info))
3239 (when (gnus-server-equal method "native")
3240 (setq method nil))
3241 (save-excursion
3242 (set-buffer gnus-group-buffer)
3243 (if method
3244 ;; It's a foreign group...
3245 (gnus-group-make-group
3246 (gnus-group-real-name (gnus-info-group info))
3247 (if (stringp method) method
3248 (prin1-to-string (car method)))
3249 (and (consp method)
3250 (nth 1 (gnus-info-method info))))
3251 ;; It's a native group.
3252 (gnus-group-make-group (gnus-info-group info))))
3253 (gnus-message 6 "Note: New group created")
3254 (setq entry
3255 (gnus-gethash (gnus-group-prefixed-name
3256 (gnus-group-real-name (gnus-info-group info))
3257 (or (gnus-info-method info) gnus-select-method))
3258 gnus-newsrc-hashtb))))
3259 ;; Whether it was a new group or not, we now have the entry, so we
3260 ;; can do the update.
3261 (if entry
3262 (progn
3263 (setcar (nthcdr 2 entry) info)
3264 (when (and (not (eq (car entry) t))
3265 (gnus-active (gnus-info-group info)))
3266 (setcar entry (length (gnus-list-of-unread-articles (car info))))))
3267 (error "No such group: %s" (gnus-info-group info)))))
3268
3269(defun gnus-group-set-method-info (group select-method)
3270 (gnus-group-set-info select-method group 'method))
3271
3272(defun gnus-group-set-params-info (group params)
3273 (gnus-group-set-info params group 'params))
3274
3275(defun gnus-add-marked-articles (group type articles &optional info force)
3276 ;; Add ARTICLES of TYPE to the info of GROUP.
3277 ;; If INFO is non-nil, use that info. If FORCE is non-nil, don't
3278 ;; add, but replace marked articles of TYPE with ARTICLES.
3279 (let ((info (or info (gnus-get-info group)))
3280 (uncompressed '(score bookmark killed))
3281 marked m)
3282 (or (not info)
3283 (and (not (setq marked (nthcdr 3 info)))
3284 (or (null articles)
3285 (setcdr (nthcdr 2 info)
3286 (list (list (cons type (gnus-compress-sequence
3287 articles t)))))))
3288 (and (not (setq m (assq type (car marked))))
3289 (or (null articles)
3290 (setcar marked
3291 (cons (cons type (gnus-compress-sequence articles t) )
3292 (car marked)))))
3293 (if force
3294 (if (null articles)
3295 (setcar (nthcdr 3 info)
3296 (delq (assq type (car marked)) (car marked)))
3297 (setcdr m (gnus-compress-sequence articles t)))
3298 (setcdr m (gnus-compress-sequence
3299 (sort (nconc (gnus-uncompress-range (cdr m))
3300 (copy-sequence articles)) '<) t))))))
3301
3302;;;
3303;;; Group timestamps
3304;;;
3305
3306(defun gnus-group-set-timestamp ()
3307 "Change the timestamp of the current group to the current time.
3308This function can be used in hooks like `gnus-select-group-hook'
3309or `gnus-group-catchup-group-hook'."
3310 (when gnus-newsgroup-name
3311 (let ((time (current-time)))
3312 (setcdr (cdr time) nil)
3313 (gnus-group-set-parameter gnus-newsgroup-name 'timestamp time))))
3314
3315(defsubst gnus-group-timestamp (group)
3316 "Return the timestamp for GROUP."
3317 (gnus-group-get-parameter group 'timestamp))
3318
3319(defun gnus-group-timestamp-delta (group)
3320 "Return the offset in seconds from the timestamp for GROUP to the current time, as a floating point number."
3321 (let* ((time (or (gnus-group-timestamp group)
3322 (list 0 0)))
3323 (delta (gnus-time-minus (current-time) time)))
3324 (+ (* (nth 0 delta) 65536.0)
3325 (nth 1 delta))))
3326
3327(defun gnus-group-timestamp-string (group)
3328 "Return a string of the timestamp for GROUP."
3329 (let ((time (gnus-group-timestamp group)))
3330 (if (not time)
3331 ""
3332 (gnus-time-iso8601 time))))
3333
3334(provide 'gnus-group)
3335
3336;;; gnus-group.el ends here
Unnamed repository; edit this file 'description' to name the repository.