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[bpt/emacs.git] / lisp / gnus / gnus-group.el
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eec82323 1;;; gnus-group.el --- group mode commands for Gnus
e84b4b86
TTN		 2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
114f9c96 4;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
eec82323 5
6748645f 6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
eec82323
LMI		 7;; Keywords: news
8
9;; This file is part of GNU Emacs.
10
5e809f55 11;; GNU Emacs is free software: you can redistribute it and/or modify
eec82323 12;; it under the terms of the GNU General Public License as published by
5e809f55
GM		 13;; the Free Software Foundation, either version 3 of the License, or
14;; (at your option) any later version.
eec82323
LMI		 15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
5e809f55 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
eec82323
LMI		 19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
5e809f55 22;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
eec82323
LMI		 23
24;;; Commentary:
25
26;;; Code:
27
39c7e99d
GM		 28;; For Emacs < 22.2.
29(eval-and-compile
30 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
31
23f87bed 32(eval-when-compile
9efa445f
DN		 33 (require 'cl))
34(defvar tool-bar-mode)
5ab7173c 35
eec82323
LMI		 36(require 'gnus)
37(require 'gnus-start)
38(require 'nnmail)
39(require 'gnus-spec)
40(require 'gnus-int)
41(require 'gnus-range)
42(require 'gnus-win)
43(require 'gnus-undo)
18c06a99 44(require 'gmm-utils)
16409b0b 45(require 'time-date)
23f87bed
MB		 46(require 'gnus-ems)
47
4a43ee9b
MB		 48(eval-when-compile
49 (require 'mm-url)
50 (let ((features (cons 'gnus-group features)))
51 (require 'gnus-sum))
01c52d31
MB		 52 (unless (boundp 'gnus-cache-active-hashtb)
53 (defvar gnus-cache-active-hashtb nil)))
54
55(autoload 'gnus-agent-total-fetched-for "gnus-agent")
56(autoload 'gnus-cache-total-fetched-for "gnus-cache")
eec82323
LMI		 57
58(defcustom gnus-group-archive-directory
54506618 59 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list/"
eec82323
LMI		 60 "*The address of the (ding) archives."
61 :group 'gnus-group-foreign
62 :type 'directory)
63
64(defcustom gnus-group-recent-archive-directory
54506618 65 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list-recent/"
eec82323
LMI		 66 "*The address of the most recent (ding) articles."
67 :group 'gnus-group-foreign
68 :type 'directory)
69
01c52d31 70(defcustom gnus-no-groups-message "No Gnus is good news"
eec82323
LMI		 71 "*Message displayed by Gnus when no groups are available."
72 :group 'gnus-start
73 :type 'string)
74
75(defcustom gnus-keep-same-level nil
76 "*Non-nil means that the next newsgroup after the current will be on the same level.
77When you type, for instance, `n' after reading the last article in the
78current newsgroup, you will go to the next newsgroup. If this variable
79is nil, the next newsgroup will be the next from the group
80buffer.
81If this variable is non-nil, Gnus will either put you in the
82next newsgroup with the same level, or, if no such newsgroup is
83available, the next newsgroup with the lowest possible level higher
84than the current level.
85If this variable is `best', Gnus will make the next newsgroup the one
86with the best level."
87 :group 'gnus-group-levels
88 :type '(choice (const nil)
89 (const best)
90 (sexp :tag "other" t)))
91
92(defcustom gnus-group-goto-unread t
93 "*If non-nil, movement commands will go to the next unread and subscribed group."
94 :link '(custom-manual "(gnus)Group Maneuvering")
95 :group 'gnus-group-various
96 :type 'boolean)
97
98(defcustom gnus-goto-next-group-when-activating t
99 "*If non-nil, the \\<gnus-group-mode-map>\\[gnus-group-get-new-news-this-group] command will advance point to the next group."
100 :link '(custom-manual "(gnus)Scanning New Messages")
101 :group 'gnus-group-various
102 :type 'boolean)
103
104(defcustom gnus-permanently-visible-groups nil
105 "*Regexp to match groups that should always be listed in the group buffer.
a8151ef7
LMI		 106This means that they will still be listed even when there are no
107unread articles in the groups.
108
109If nil, no groups are permanently visible."
eec82323 110 :group 'gnus-group-listing
eb284ea1 111 :type '(choice regexp (const nil)))
eec82323 112
b0b63450
MB		 113(defcustom gnus-safe-html-newsgroups "\\`nnrss[+:]"
114 "Groups in which links in html articles are considered all safe.
115The value may be a regexp matching those groups, a list of group names,
116or nil. This overrides `mm-w3m-safe-url-regexp' (which see). This is
117effective only when emacs-w3m renders html articles, i.e., in the case
118`mm-text-html-renderer' is set to `w3m'."
119 :version "23.2"
120 :group 'gnus-group-various
121 :type '(choice regexp
122 (repeat :tag "List of group names" (string :tag "Group"))
123 (const nil)))
124
eec82323
LMI		 125(defcustom gnus-list-groups-with-ticked-articles t
126 "*If non-nil, list groups that have only ticked articles.
127If nil, only list groups that have unread articles."
128 :group 'gnus-group-listing
129 :type 'boolean)
130
131(defcustom gnus-group-default-list-level gnus-level-subscribed
132 "*Default listing level.
133Ignored if `gnus-group-use-permanent-levels' is non-nil."
134 :group 'gnus-group-listing
135 :type 'integer)
136
137(defcustom gnus-group-list-inactive-groups t
138 "*If non-nil, inactive groups will be listed."
139 :group 'gnus-group-listing
140 :group 'gnus-group-levels
141 :type 'boolean)
142
143(defcustom gnus-group-sort-function 'gnus-group-sort-by-alphabet
144 "*Function used for sorting the group buffer.
145This function will be called with group info entries as the arguments
146for the groups to be sorted. Pre-made functions include
147`gnus-group-sort-by-alphabet', `gnus-group-sort-by-real-name',
148`gnus-group-sort-by-unread', `gnus-group-sort-by-level',
23f87bed
MB		 149`gnus-group-sort-by-score', `gnus-group-sort-by-method',
150`gnus-group-sort-by-server', and `gnus-group-sort-by-rank'.
eec82323 151
c30ba437 152This variable can also be a list of sorting functions. In that case,
eec82323
LMI		 153the most significant sort function should be the last function in the
154list."
155 :group 'gnus-group-listing
156 :link '(custom-manual "(gnus)Sorting Groups")
23f87bed
MB		 157 :type '(repeat :value-to-internal (lambda (widget value)
158 (if (listp value) value (list value)))
159 :match (lambda (widget value)
160 (or (symbolp value)
161 (widget-editable-list-match widget value)))
162 (choice (function-item gnus-group-sort-by-alphabet)
163 (function-item gnus-group-sort-by-real-name)
164 (function-item gnus-group-sort-by-unread)
165 (function-item gnus-group-sort-by-level)
166 (function-item gnus-group-sort-by-score)
167 (function-item gnus-group-sort-by-method)
168 (function-item gnus-group-sort-by-server)
169 (function-item gnus-group-sort-by-rank)
170 (function :tag "other" nil))))
171
01c52d31 172(defcustom gnus-group-line-format "%M\%S\%p\%P\%5y:%B%(%g%)%O\n"
eec82323
LMI		 173 "*Format of group lines.
174It works along the same lines as a normal formatting string,
175with some simple extensions.
176
177%M Only marked articles (character, \"*\" or \" \")
178%S Whether the group is subscribed (character, \"U\", \"K\", \"Z\" or \" \")
179%L Level of subscribedness (integer)
180%N Number of unread articles (integer)
181%I Number of dormant articles (integer)
182%i Number of ticked and dormant (integer)
183%T Number of ticked articles (integer)
184%R Number of read articles (integer)
23f87bed 185%U Number of unseen articles (integer)
eec82323
LMI		 186%t Estimated total number of articles (integer)
187%y Number of unread, unticked articles (integer)
188%G Group name (string)
189%g Qualified group name (string)
23f87bed
MB		 190%c Short (collapsed) group name. See `gnus-group-uncollapsed-levels'.
191%C Group comment (string)
eec82323
LMI		 192%D Group description (string)
193%s Select method (string)
194%o Moderated group (char, \"m\")
195%p Process mark (char)
23f87bed 196%B Whether a summary buffer for the group is open (char, \"*\")
eec82323
LMI		 197%O Moderated group (string, \"(m)\" or \"\")
198%P Topic indentation (string)
199%m Whether there is new(ish) mail in the group (char, \"%\")
eec82323
LMI		 200%n Select from where (string)
201%z A string that look like `<%s:%n>' if a foreign select method is used
202%d The date the group was last entered.
16409b0b 203%E Icon as defined by `gnus-group-icon-list'.
01c52d31 204%F The disk space used by the articles fetched by both the cache and agent.
eec82323
LMI		 205%u User defined specifier. The next character in the format string should
206 be a letter. Gnus will call the function gnus-user-format-function-X,
23f87bed
MB		 207 where X is the letter following %u. The function will be passed a
208 single dummy parameter as argument. The function should return a
209 string, which will be inserted into the buffer just like information
210 from any other group specifier.
eec82323
LMI		 211
212Note that this format specification is not always respected. For
213reasons of efficiency, when listing killed groups, this specification
c30ba437 214is ignored altogether. If the spec is changed considerably, your
eec82323
LMI		 215output may end up looking strange when listing both alive and killed
216groups.
217
218If you use %o or %O, reading the active file will be slower and quite
01c52d31
MB		 219a bit of extra memory will be used. %D and %F will also worsen
220performance. Also note that if you change the format specification to
221include any of these specs, you must probably re-start Gnus to see
222them go into effect.
23f87bed
MB		 223
224General format specifiers can also be used.
225See Info node `(gnus)Formatting Variables'."
226 :link '(custom-manual "(gnus)Formatting Variables")
eec82323
LMI		 227 :group 'gnus-group-visual
228 :type 'string)
229
230(defcustom gnus-group-mode-line-format "Gnus: %%b {%M\%:%S}"
231 "*The format specification for the group mode line.
232It works along the same lines as a normal formatting string,
233with some simple extensions:
234
235%S The native news server.
236%M The native select method.
237%: \":\" if %S isn't \"\"."
238 :group 'gnus-group-visual
239 :type 'string)
240
23f87bed
MB		 241;; Extracted from gnus-xmas-redefine in order to preserve user settings
242(when (featurep 'xemacs)
243 (add-hook 'gnus-group-mode-hook 'gnus-xmas-group-menu-add)
244 (add-hook 'gnus-group-mode-hook 'gnus-xmas-setup-group-toolbar))
eec82323
LMI		 245
246(defcustom gnus-group-menu-hook nil
247 "Hook run after the creation of the group mode menu."
248 :group 'gnus-group-various
249 :type 'hook)
250
251(defcustom gnus-group-catchup-group-hook nil
252 "Hook run when catching up a group from the group buffer."
253 :group 'gnus-group-various
254 :link '(custom-manual "(gnus)Group Data")
255 :type 'hook)
256
257(defcustom gnus-group-update-group-hook nil
258 "Hook called when updating group lines."
259 :group 'gnus-group-visual
260 :type 'hook)
261
262(defcustom gnus-group-prepare-function 'gnus-group-prepare-flat
263 "*A function that is called to generate the group buffer.
264The function is called with three arguments: The first is a number;
265all group with a level less or equal to that number should be listed,
266if the second is non-nil, empty groups should also be displayed. If
267the third is non-nil, it is a number. No groups with a level lower
268than this number should be displayed.
269
270The only current function implemented is `gnus-group-prepare-flat'."
271 :group 'gnus-group-listing
272 :type 'function)
273
274(defcustom gnus-group-prepare-hook nil
275 "Hook called after the group buffer has been generated.
276If you want to modify the group buffer, you can use this hook."
277 :group 'gnus-group-listing
278 :type 'hook)
279
280(defcustom gnus-suspend-gnus-hook nil
281 "Hook called when suspending (not exiting) Gnus."
282 :group 'gnus-exit
283 :type 'hook)
284
285(defcustom gnus-exit-gnus-hook nil
286 "Hook called when exiting Gnus."
287 :group 'gnus-exit
288 :type 'hook)
289
290(defcustom gnus-after-exiting-gnus-hook nil
291 "Hook called after exiting Gnus."
292 :group 'gnus-exit
293 :type 'hook)
294
295(defcustom gnus-group-update-hook '(gnus-group-highlight-line)
296 "Hook called when a group line is changed.
297The hook will not be called if `gnus-visual' is nil.
298
299The default function `gnus-group-highlight-line' will
300highlight the line according to the `gnus-group-highlight'
301variable."
302 :group 'gnus-group-visual
303 :type 'hook)
304
305(defcustom gnus-useful-groups
7dafe00b
MB		 306 '(("(ding) mailing list mirrored at gmane.org"
307 "gmane.emacs.gnus.general"
308 (nntp "Gmane"
309 (nntp-address "news.gmane.org")))
310 ("Gnus bug archive"
311 "gnus.gnus-bug"
312 (nntp "news.gnus.org"
313 (nntp-address "news.gnus.org")))
314 ("Local Gnus help group"
eec82323
LMI		 315 "gnus-help"
316 (nndoc "gnus-help"
317 (nndoc-article-type mbox)
318 (eval `(nndoc-address
319 ,(let ((file (nnheader-find-etc-directory
320 "gnus-tut.txt" t)))
321 (unless file
322 (error "Couldn't find doc group"))
323 file))))))
6748645f 324 "*Alist of useful group-server pairs."
eec82323
LMI		 325 :group 'gnus-group-listing
326 :type '(repeat (list (string :tag "Description")
327 (string :tag "Name")
328 (sexp :tag "Method"))))
329
330(defcustom gnus-group-highlight
23f87bed
MB		 331 '(;; Mail.
332 ((and mailp (= unread 0) (eq level 1)) .
0f49874b 333 gnus-group-mail-1-empty)
23f87bed 334 ((and mailp (eq level 1)) .
0f49874b 335 gnus-group-mail-1)
23f87bed 336 ((and mailp (= unread 0) (eq level 2)) .
0f49874b 337 gnus-group-mail-2-empty)
23f87bed 338 ((and mailp (eq level 2)) .
0f49874b 339 gnus-group-mail-2)
23f87bed 340 ((and mailp (= unread 0) (eq level 3)) .
0f49874b 341 gnus-group-mail-3-empty)
23f87bed 342 ((and mailp (eq level 3)) .
0f49874b 343 gnus-group-mail-3)
23f87bed 344 ((and mailp (= unread 0)) .
0f49874b 345 gnus-group-mail-low-empty)
23f87bed 346 ((and mailp) .
0f49874b 347 gnus-group-mail-low)
23f87bed
MB		 348 ;; News.
349 ((and (= unread 0) (eq level 1)) .
0f49874b 350 gnus-group-news-1-empty)
23f87bed 351 ((and (eq level 1)) .
0f49874b 352 gnus-group-news-1)
23f87bed 353 ((and (= unread 0) (eq level 2)) .
0f49874b 354 gnus-group-news-2-empty)
23f87bed 355 ((and (eq level 2)) .
0f49874b 356 gnus-group-news-2)
23f87bed 357 ((and (= unread 0) (eq level 3)) .
0f49874b 358 gnus-group-news-3-empty)
23f87bed 359 ((and (eq level 3)) .
0f49874b 360 gnus-group-news-3)
23f87bed 361 ((and (= unread 0) (eq level 4)) .
0f49874b 362 gnus-group-news-4-empty)
23f87bed 363 ((and (eq level 4)) .
0f49874b 364 gnus-group-news-4)
23f87bed 365 ((and (= unread 0) (eq level 5)) .
0f49874b 366 gnus-group-news-5-empty)
23f87bed 367 ((and (eq level 5)) .
0f49874b 368 gnus-group-news-5)
23f87bed 369 ((and (= unread 0) (eq level 6)) .
0f49874b 370 gnus-group-news-6-empty)
23f87bed 371 ((and (eq level 6)) .
0f49874b 372 gnus-group-news-6)
23f87bed 373 ((and (= unread 0)) .
0f49874b 374 gnus-group-news-low-empty)
eec82323 375 (t .
0f49874b 376 gnus-group-news-low))
6748645f 377 "*Controls the highlighting of group buffer lines.
eec82323
LMI		 378
379Below is a list of `Form'/`Face' pairs. When deciding how a a
380particular group line should be displayed, each form is
381evaluated. The content of the face field after the first true form is
382used. You can change how those group lines are displayed by
383editing the face field.
384
385It is also possible to change and add form fields, but currently that
386requires an understanding of Lisp expressions. Hopefully this will
387change in a future release. For now, you can use the following
388variables in the Lisp expression:
389
390group: The name of the group.
391unread: The number of unread articles in the group.
392method: The select method used.
393mailp: Whether it's a mail group or not.
394level: The level of the group.
395score: The score of the group.
396ticked: The number of ticked articles."
397 :group 'gnus-group-visual
398 :type '(repeat (cons (sexp :tag "Form") face)))
4b576f7d 399(put 'gnus-group-highlight 'risky-local-variable t)
eec82323
LMI		 400
401(defcustom gnus-new-mail-mark ?%
402 "Mark used for groups with new mail."
403 :group 'gnus-group-visual
404 :type 'character)
405
16409b0b 406(defgroup gnus-group-icons nil
d10edbae 407 "Add Icons to your group buffer."
16409b0b
GM		 408 :group 'gnus-group-visual)
409
410(defcustom gnus-group-icon-list
411 nil
412 "*Controls the insertion of icons into group buffer lines.
413
414Below is a list of `Form'/`File' pairs. When deciding how a
415particular group line should be displayed, each form is evaluated.
416The icon from the file field after the first true form is used. You
417can change how those group lines are displayed by editing the file
418field. The File will either be found in the
35ef97a5 419`gnus-group-glyph-directory' or by designating absolute name of the
16409b0b
GM		 420file.
421
422It is also possible to change and add form fields, but currently that
423requires an understanding of Lisp expressions. Hopefully this will
424change in a future release. For now, you can use the following
425variables in the Lisp expression:
426
427group: The name of the group.
428unread: The number of unread articles in the group.
429method: The select method used.
430mailp: Whether it's a mail group or not.
431newsp: Whether it's a news group or not
432level: The level of the group.
433score: The score of the group.
434ticked: The number of ticked articles."
435 :group 'gnus-group-icons
436 :type '(repeat (cons (sexp :tag "Form") file)))
60ece9b0 437(put 'gnus-group-icon-list 'risky-local-variable t)
16409b0b
GM		 438
439(defcustom gnus-group-name-charset-method-alist nil
23f87bed 440 "Alist of method and the charset for group names.
16409b0b
GM		 441
442For example:
23f87bed 443 (((nntp \"news.com.cn\") . cn-gb-2312))"
5002cc5c 444 :version "21.1"
16409b0b
GM		 445 :group 'gnus-charset
446 :type '(repeat (cons (sexp :tag "Method") (symbol :tag "Charset"))))
447
23f87bed
MB		 448(defcustom gnus-group-name-charset-group-alist
449 (if (or (and (fboundp 'find-coding-system) (find-coding-system 'utf-8))
450 (mm-coding-system-p 'utf-8))
451 '((".*" . utf-8))
452 nil)
453 "Alist of group regexp and the charset for group names.
16409b0b
GM		 454
455For example:
23f87bed 456 ((\"\\.com\\.cn:\" . cn-gb-2312))"
16409b0b
GM		 457 :group 'gnus-charset
458 :type '(repeat (cons (regexp :tag "Group") (symbol :tag "Charset"))))
459
23f87bed
MB		 460(defcustom gnus-group-jump-to-group-prompt nil
461 "Default prompt for `gnus-group-jump-to-group'.
01c52d31
MB		 462
463If non-nil, the value should be a string or an alist. If it is a string,
464e.g. \"nnml:\", in which case `gnus-group-jump-to-group' offers \"Group:
465nnml:\" in the minibuffer prompt.
466
467If it is an alist, it must consist of \(NUMBER . PROMPT\) pairs, for example:
468\((1 . \"\") (2 . \"nnfolder+archive:\")). The element with number 0 is
469used when no prefix argument is given to `gnus-group-jump-to-group'."
bf247b6e 470 :version "22.1"
23f87bed
MB		 471 :group 'gnus-group-various
472 :type '(choice (string :tag "Prompt string")
01c52d31
MB		 473 (const :tag "Empty" nil)
474 (repeat (cons (integer :tag "Argument")
475 (string :tag "Prompt string")))))
23f87bed
MB		 476
477(defvar gnus-group-listing-limit 1000
478 "*A limit of the number of groups when listing.
479If the number of groups is larger than the limit, list them in a
480simple manner.")
481
eec82323
LMI		 482;;; Internal variables
483
23f87bed
MB		 484(defvar gnus-group-is-exiting-p nil)
485(defvar gnus-group-is-exiting-without-update-p nil)
eec82323
LMI		 486(defvar gnus-group-sort-alist-function 'gnus-group-sort-flat
487 "Function for sorting the group buffer.")
488
489(defvar gnus-group-sort-selected-function 'gnus-group-sort-selected-flat
490 "Function for sorting the selected groups in the group buffer.")
491
492(defvar gnus-group-indentation-function nil)
493(defvar gnus-goto-missing-group-function nil)
494(defvar gnus-group-update-group-function nil)
495(defvar gnus-group-goto-next-group-function nil
496 "Function to override finding the next group after listing groups.")
497
498(defvar gnus-group-edit-buffer nil)
499
500(defvar gnus-group-line-format-alist
501 `((?M gnus-tmp-marked-mark ?c)
502 (?S gnus-tmp-subscribed ?c)
503 (?L gnus-tmp-level ?d)
504 (?N (cond ((eq number t) "*" )
505 ((numberp number)
506 (int-to-string
507 (+ number
508 (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
509 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))))))
510 (t number)) ?s)
511 (?R gnus-tmp-number-of-read ?s)
23f87bed 512 (?U (gnus-number-of-unseen-articles-in-group gnus-tmp-group) ?d)
eec82323
LMI		 513 (?t gnus-tmp-number-total ?d)
514 (?y gnus-tmp-number-of-unread ?s)
515 (?I (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked))) ?d)
516 (?T (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))) ?d)
517 (?i (+ (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
518 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked)))) ?d)
91472578
MB		 519 (?g (if (boundp 'gnus-tmp-decoded-group)
520 gnus-tmp-decoded-group
521 gnus-tmp-group)
522 ?s)
eec82323 523 (?G gnus-tmp-qualified-group ?s)
91472578
MB		 524 (?c (gnus-short-group-name (if (boundp 'gnus-tmp-decoded-group)
525 gnus-tmp-decoded-group
526 gnus-tmp-group))
527 ?s)
23f87bed 528 (?C gnus-tmp-comment ?s)
eec82323
LMI		 529 (?D gnus-tmp-newsgroup-description ?s)
530 (?o gnus-tmp-moderated ?c)
531 (?O gnus-tmp-moderated-string ?s)
532 (?p gnus-tmp-process-marked ?c)
533 (?s gnus-tmp-news-server ?s)
5153a47a
MB		 534 (?n ,(if (featurep 'xemacs)
535 '(symbol-name gnus-tmp-news-method)
536 'gnus-tmp-news-method)
537 ?s)
eec82323 538 (?P gnus-group-indentation ?s)
16409b0b 539 (?E gnus-tmp-group-icon ?s)
23f87bed 540 (?B gnus-tmp-summary-live ?c)
eec82323
LMI		 541 (?z gnus-tmp-news-method-string ?s)
542 (?m (gnus-group-new-mail gnus-tmp-group) ?c)
543 (?d (gnus-group-timestamp-string gnus-tmp-group) ?s)
01c52d31
MB		 544 (?u gnus-tmp-user-defined ?s)
545 (?F (gnus-total-fetched-for gnus-tmp-group) ?s)
546 ))
eec82323
LMI		 547
548(defvar gnus-group-mode-line-format-alist
549 `((?S gnus-tmp-news-server ?s)
550 (?M gnus-tmp-news-method ?s)
551 (?u gnus-tmp-user-defined ?s)
552 (?: gnus-tmp-colon ?s)))
553
554(defvar gnus-topic-topology nil
555 "The complete topic hierarchy.")
556
557(defvar gnus-topic-alist nil
558 "The complete topic-group alist.")
559
560(defvar gnus-group-marked nil)
561
562(defvar gnus-group-list-mode nil)
563
16409b0b
GM		 564
565(defvar gnus-group-icon-cache nil)
566
23f87bed
MB		 567(defvar gnus-group-listed-groups nil)
568(defvar gnus-group-list-option nil)
569
eec82323
LMI		 570;;;
571;;; Gnus group mode
572;;;
573
574(put 'gnus-group-mode 'mode-class 'special)
575
23f87bed
MB		 576(gnus-define-keys gnus-group-mode-map
577 " " gnus-group-read-group
578 "=" gnus-group-select-group
579 "\r" gnus-group-select-group
580 "\M-\r" gnus-group-quick-select-group
581 "\M- " gnus-group-visible-select-group
582 [(meta control return)] gnus-group-select-group-ephemerally
583 "j" gnus-group-jump-to-group
584 "n" gnus-group-next-unread-group
585 "p" gnus-group-prev-unread-group
586 "\177" gnus-group-prev-unread-group
587 [delete] gnus-group-prev-unread-group
588 [backspace] gnus-group-prev-unread-group
589 "N" gnus-group-next-group
590 "P" gnus-group-prev-group
591 "\M-n" gnus-group-next-unread-group-same-level
592 "\M-p" gnus-group-prev-unread-group-same-level
593 "," gnus-group-best-unread-group
594 "." gnus-group-first-unread-group
595 "u" gnus-group-unsubscribe-current-group
596 "U" gnus-group-unsubscribe-group
597 "c" gnus-group-catchup-current
598 "C" gnus-group-catchup-current-all
599 "\M-c" gnus-group-clear-data
600 "l" gnus-group-list-groups
601 "L" gnus-group-list-all-groups
602 "m" gnus-group-mail
603 "i" gnus-group-news
604 "g" gnus-group-get-new-news
605 "\M-g" gnus-group-get-new-news-this-group
606 "R" gnus-group-restart
607 "r" gnus-group-read-init-file
608 "B" gnus-group-browse-foreign-server
609 "b" gnus-group-check-bogus-groups
610 "F" gnus-group-find-new-groups
611 "\C-c\C-d" gnus-group-describe-group
612 "\M-d" gnus-group-describe-all-groups
613 "\C-c\C-a" gnus-group-apropos
614 "\C-c\M-\C-a" gnus-group-description-apropos
615 "a" gnus-group-post-news
616 "\ek" gnus-group-edit-local-kill
617 "\eK" gnus-group-edit-global-kill
618 "\C-k" gnus-group-kill-group
619 "\C-y" gnus-group-yank-group
620 "\C-w" gnus-group-kill-region
621 "\C-x\C-t" gnus-group-transpose-groups
622 "\C-c\C-l" gnus-group-list-killed
623 "\C-c\C-x" gnus-group-expire-articles
624 "\C-c\M-\C-x" gnus-group-expire-all-groups
625 "V" gnus-version
626 "s" gnus-group-save-newsrc
627 "z" gnus-group-suspend
628 "q" gnus-group-exit
629 "Q" gnus-group-quit
630 "?" gnus-group-describe-briefly
631 "\C-c\C-i" gnus-info-find-node
632 "\M-e" gnus-group-edit-group-method
633 "^" gnus-group-enter-server-mode
634 gnus-mouse-2 gnus-mouse-pick-group
1c497624 635 [follow-link] mouse-face
23f87bed
MB		 636 "<" beginning-of-buffer
637 ">" end-of-buffer
638 "\C-c\C-b" gnus-bug
639 "\C-c\C-s" gnus-group-sort-groups
640 "t" gnus-topic-mode
641 "\C-c\M-g" gnus-activate-all-groups
642 "\M-&" gnus-group-universal-argument
643 "#" gnus-group-mark-group
644 "\M-#" gnus-group-unmark-group)
645
646(gnus-define-keys (gnus-group-mark-map "M" gnus-group-mode-map)
647 "m" gnus-group-mark-group
648 "u" gnus-group-unmark-group
649 "w" gnus-group-mark-region
650 "b" gnus-group-mark-buffer
651 "r" gnus-group-mark-regexp
652 "U" gnus-group-unmark-all-groups)
653
654(gnus-define-keys (gnus-group-sieve-map "D" gnus-group-mode-map)
655 "u" gnus-sieve-update
656 "g" gnus-sieve-generate)
657
658(gnus-define-keys (gnus-group-group-map "G" gnus-group-mode-map)
659 "d" gnus-group-make-directory-group
660 "h" gnus-group-make-help-group
661 "u" gnus-group-make-useful-group
662 "a" gnus-group-make-archive-group
23f87bed
MB		 663 "l" gnus-group-nnimap-edit-acl
664 "m" gnus-group-make-group
665 "E" gnus-group-edit-group
666 "e" gnus-group-edit-group-method
667 "p" gnus-group-edit-group-parameters
668 "v" gnus-group-add-to-virtual
669 "V" gnus-group-make-empty-virtual
670 "D" gnus-group-enter-directory
671 "f" gnus-group-make-doc-group
672 "w" gnus-group-make-web-group
673 "M" gnus-group-read-ephemeral-group
674 "r" gnus-group-rename-group
675 "R" gnus-group-make-rss-group
676 "c" gnus-group-customize
01c52d31 677 "z" gnus-group-compact-group
23f87bed
MB		 678 "x" gnus-group-nnimap-expunge
679 "\177" gnus-group-delete-group
680 [delete] gnus-group-delete-group)
681
23f87bed
MB		 682(gnus-define-keys (gnus-group-sort-map "S" gnus-group-group-map)
683 "s" gnus-group-sort-groups
684 "a" gnus-group-sort-groups-by-alphabet
685 "u" gnus-group-sort-groups-by-unread
686 "l" gnus-group-sort-groups-by-level
687 "v" gnus-group-sort-groups-by-score
688 "r" gnus-group-sort-groups-by-rank
689 "m" gnus-group-sort-groups-by-method
690 "n" gnus-group-sort-groups-by-real-name)
691
692(gnus-define-keys (gnus-group-sort-selected-map "P" gnus-group-group-map)
693 "s" gnus-group-sort-selected-groups
694 "a" gnus-group-sort-selected-groups-by-alphabet
695 "u" gnus-group-sort-selected-groups-by-unread
696 "l" gnus-group-sort-selected-groups-by-level
697 "v" gnus-group-sort-selected-groups-by-score
698 "r" gnus-group-sort-selected-groups-by-rank
699 "m" gnus-group-sort-selected-groups-by-method
700 "n" gnus-group-sort-selected-groups-by-real-name)
701
702(gnus-define-keys (gnus-group-list-map "A" gnus-group-mode-map)
703 "k" gnus-group-list-killed
704 "z" gnus-group-list-zombies
705 "s" gnus-group-list-groups
706 "u" gnus-group-list-all-groups
707 "A" gnus-group-list-active
708 "a" gnus-group-apropos
709 "d" gnus-group-description-apropos
710 "m" gnus-group-list-matching
711 "M" gnus-group-list-all-matching
712 "l" gnus-group-list-level
713 "c" gnus-group-list-cached
714 "?" gnus-group-list-dormant)
715
716(gnus-define-keys (gnus-group-list-limit-map "/" gnus-group-list-map)
717 "k" gnus-group-list-limit
718 "z" gnus-group-list-limit
719 "s" gnus-group-list-limit
720 "u" gnus-group-list-limit
721 "A" gnus-group-list-limit
722 "m" gnus-group-list-limit
723 "M" gnus-group-list-limit
724 "l" gnus-group-list-limit
725 "c" gnus-group-list-limit
726 "?" gnus-group-list-limit)
727
728(gnus-define-keys (gnus-group-list-flush-map "f" gnus-group-list-map)
729 "k" gnus-group-list-flush
730 "z" gnus-group-list-flush
731 "s" gnus-group-list-flush
732 "u" gnus-group-list-flush
733 "A" gnus-group-list-flush
734 "m" gnus-group-list-flush
735 "M" gnus-group-list-flush
736 "l" gnus-group-list-flush
737 "c" gnus-group-list-flush
738 "?" gnus-group-list-flush)
739
740(gnus-define-keys (gnus-group-list-plus-map "p" gnus-group-list-map)
741 "k" gnus-group-list-plus
742 "z" gnus-group-list-plus
743 "s" gnus-group-list-plus
744 "u" gnus-group-list-plus
745 "A" gnus-group-list-plus
746 "m" gnus-group-list-plus
747 "M" gnus-group-list-plus
748 "l" gnus-group-list-plus
749 "c" gnus-group-list-plus
750 "?" gnus-group-list-plus)
751
752(gnus-define-keys (gnus-group-score-map "W" gnus-group-mode-map)
01c52d31
MB		 753 "f" gnus-score-flush-cache
754 "e" gnus-score-edit-all-score)
23f87bed
MB		 755
756(gnus-define-keys (gnus-group-help-map "H" gnus-group-mode-map)
757 "c" gnus-group-fetch-charter
758 "C" gnus-group-fetch-control
759 "d" gnus-group-describe-group
760 "f" gnus-group-fetch-faq
761 "v" gnus-version)
762
763(gnus-define-keys (gnus-group-sub-map "S" gnus-group-mode-map)
764 "l" gnus-group-set-current-level
765 "t" gnus-group-unsubscribe-current-group
766 "s" gnus-group-unsubscribe-group
767 "k" gnus-group-kill-group
768 "y" gnus-group-yank-group
769 "w" gnus-group-kill-region
770 "\C-k" gnus-group-kill-level
771 "z" gnus-group-kill-all-zombies)
772
773(defun gnus-topic-mode-p ()
774 "Return non-nil in `gnus-topic-mode'."
775 (and (boundp 'gnus-topic-mode)
776 (symbol-value 'gnus-topic-mode)))
eec82323
LMI		 777
778(defun gnus-group-make-menu-bar ()
779 (gnus-turn-off-edit-menu 'group)
780 (unless (boundp 'gnus-group-reading-menu)
781
782 (easy-menu-define
783 gnus-group-reading-menu gnus-group-mode-map ""
23f87bed
MB		 784 `("Group"
785 ["Read" gnus-group-read-group
786 :included (not (gnus-topic-mode-p))
787 :active (gnus-group-group-name)]
788 ["Read " gnus-topic-read-group
789 :included (gnus-topic-mode-p)]
790 ["Select" gnus-group-select-group
791 :included (not (gnus-topic-mode-p))
792 :active (gnus-group-group-name)]
793 ["Select " gnus-topic-select-group
794 :included (gnus-topic-mode-p)]
eec82323
LMI		 795 ["See old articles" (gnus-group-select-group 'all)
796 :keys "C-u SPC" :active (gnus-group-group-name)]
23f87bed
MB		 797 ["Catch up" gnus-group-catchup-current
798 :included (not (gnus-topic-mode-p))
799 :active (gnus-group-group-name)
800 ,@(if (featurep 'xemacs) nil
801 '(:help "Mark unread articles in the current group as read"))]
802 ["Catch up " gnus-topic-catchup-articles
803 :included (gnus-topic-mode-p)
804 ,@(if (featurep 'xemacs) nil
805 '(:help "Mark unread articles in the current group or topic as read"))]
eec82323
LMI		 806 ["Catch up all articles" gnus-group-catchup-current-all
807 (gnus-group-group-name)]
808 ["Check for new articles" gnus-group-get-new-news-this-group
23f87bed 809 :included (not (gnus-topic-mode-p))
84b9b23e 810 :active (gnus-group-group-name)
23f87bed
MB		 811 ,@(if (featurep 'xemacs) nil
812 '(:help "Check for new messages in current group"))]
813 ["Check for new articles " gnus-topic-get-new-news-this-topic
814 :included (gnus-topic-mode-p)
815 ,@(if (featurep 'xemacs) nil
816 '(:help "Check for new messages in current group or topic"))]
eec82323
LMI		 817 ["Toggle subscription" gnus-group-unsubscribe-current-group
818 (gnus-group-group-name)]
84b9b23e 819 ["Kill" gnus-group-kill-group :active (gnus-group-group-name)
23f87bed
MB		 820 ,@(if (featurep 'xemacs) nil
821 '(:help "Kill (remove) current group"))]
eec82323 822 ["Yank" gnus-group-yank-group gnus-list-of-killed-groups]
84b9b23e 823 ["Describe" gnus-group-describe-group :active (gnus-group-group-name)
23f87bed
MB		 824 ,@(if (featurep 'xemacs) nil
825 '(:help "Display description of the current group"))]
eec82323 826 ["Fetch FAQ" gnus-group-fetch-faq (gnus-group-group-name)]
23f87bed
MB		 827 ["Fetch charter" gnus-group-fetch-charter
828 :active (gnus-group-group-name)
829 ,@(if (featurep 'xemacs) nil
830 '(:help "Display the charter of the current group"))]
831 ["Fetch control message" gnus-group-fetch-control
832 :active (gnus-group-group-name)
833 ,@(if (featurep 'xemacs) nil
834 '(:help "Display the archived control message for the current group"))]
eec82323
LMI		 835 ;; Actually one should check, if any of the marked groups gives t for
836 ;; (gnus-check-backend-function 'request-expire-articles ...)
837 ["Expire articles" gnus-group-expire-articles
23f87bed
MB		 838 :included (not (gnus-topic-mode-p))
839 :active (or (and (gnus-group-group-name)
840 (gnus-check-backend-function
841 'request-expire-articles
842 (gnus-group-group-name))) gnus-group-marked)]
843 ["Expire articles " gnus-topic-expire-articles
844 :included (gnus-topic-mode-p)]
845 ["Set group level..." gnus-group-set-current-level
eec82323
LMI		 846 (gnus-group-group-name)]
847 ["Select quick" gnus-group-quick-select-group (gnus-group-group-name)]
848 ["Customize" gnus-group-customize (gnus-group-group-name)]
01c52d31
MB		 849 ["Compact" gnus-group-compact-group
850 :active (gnus-group-group-name)]
eec82323
LMI		 851 ("Edit"
852 ["Parameters" gnus-group-edit-group-parameters
23f87bed
MB		 853 :included (not (gnus-topic-mode-p))
854 :active (gnus-group-group-name)]
855 ["Parameters " gnus-topic-edit-parameters
856 :included (gnus-topic-mode-p)]
eec82323
LMI		 857 ["Select method" gnus-group-edit-group-method
858 (gnus-group-group-name)]
859 ["Info" gnus-group-edit-group (gnus-group-group-name)]
860 ["Local kill file" gnus-group-edit-local-kill (gnus-group-group-name)]
a8151ef7 861 ["Global kill file" gnus-group-edit-global-kill t])))
eec82323
LMI		 862
863 (easy-menu-define
864 gnus-group-group-menu gnus-group-mode-map ""
865 '("Groups"
866 ("Listing"
867 ["List unread subscribed groups" gnus-group-list-groups t]
868 ["List (un)subscribed groups" gnus-group-list-all-groups t]
869 ["List killed groups" gnus-group-list-killed gnus-killed-list]
870 ["List zombie groups" gnus-group-list-zombies gnus-zombie-list]
871 ["List level..." gnus-group-list-level t]
872 ["Describe all groups" gnus-group-describe-all-groups t]
873 ["Group apropos..." gnus-group-apropos t]
874 ["Group and description apropos..." gnus-group-description-apropos t]
875 ["List groups matching..." gnus-group-list-matching t]
876 ["List all groups matching..." gnus-group-list-all-matching t]
16409b0b
GM		 877 ["List active file" gnus-group-list-active t]
878 ["List groups with cached" gnus-group-list-cached t]
879 ["List groups with dormant" gnus-group-list-dormant t])
eec82323
LMI		 880 ("Sort"
881 ["Default sort" gnus-group-sort-groups t]
882 ["Sort by method" gnus-group-sort-groups-by-method t]
883 ["Sort by rank" gnus-group-sort-groups-by-rank t]
884 ["Sort by score" gnus-group-sort-groups-by-score t]
885 ["Sort by level" gnus-group-sort-groups-by-level t]
886 ["Sort by unread" gnus-group-sort-groups-by-unread t]
23f87bed
MB		 887 ["Sort by name" gnus-group-sort-groups-by-alphabet t]
888 ["Sort by real name" gnus-group-sort-groups-by-real-name t])
eec82323
LMI		 889 ("Sort process/prefixed"
890 ["Default sort" gnus-group-sort-selected-groups
23f87bed 891 (not (gnus-topic-mode-p))]
eec82323 892 ["Sort by method" gnus-group-sort-selected-groups-by-method
23f87bed 893 (not (gnus-topic-mode-p))]
eec82323 894 ["Sort by rank" gnus-group-sort-selected-groups-by-rank
23f87bed 895 (not (gnus-topic-mode-p))]
eec82323 896 ["Sort by score" gnus-group-sort-selected-groups-by-score
23f87bed 897 (not (gnus-topic-mode-p))]
eec82323 898 ["Sort by level" gnus-group-sort-selected-groups-by-level
23f87bed 899 (not (gnus-topic-mode-p))]
eec82323 900 ["Sort by unread" gnus-group-sort-selected-groups-by-unread
23f87bed 901 (not (gnus-topic-mode-p))]
eec82323 902 ["Sort by name" gnus-group-sort-selected-groups-by-alphabet
23f87bed
MB		 903 (not (gnus-topic-mode-p))]
904 ["Sort by real name" gnus-group-sort-selected-groups-by-real-name
905 (not (gnus-topic-mode-p))])
eec82323
LMI		 906 ("Mark"
907 ["Mark group" gnus-group-mark-group
908 (and (gnus-group-group-name)
909 (not (memq (gnus-group-group-name) gnus-group-marked)))]
910 ["Unmark group" gnus-group-unmark-group
911 (and (gnus-group-group-name)
912 (memq (gnus-group-group-name) gnus-group-marked))]
913 ["Unmark all" gnus-group-unmark-all-groups gnus-group-marked]
914 ["Mark regexp..." gnus-group-mark-regexp t]
23f87bed 915 ["Mark region" gnus-group-mark-region :active (gnus-mark-active-p)]
eec82323
LMI		 916 ["Mark buffer" gnus-group-mark-buffer t]
917 ["Execute command" gnus-group-universal-argument
918 (or gnus-group-marked (gnus-group-group-name))])
919 ("Subscribe"
23f87bed
MB		 920 ["Subscribe to a group..." gnus-group-unsubscribe-group t]
921 ["Kill all newsgroups in region" gnus-group-kill-region
922 :active (gnus-mark-active-p)]
eec82323
LMI		 923 ["Kill all zombie groups" gnus-group-kill-all-zombies
924 gnus-zombie-list]
925 ["Kill all groups on level..." gnus-group-kill-level t])
926 ("Foreign groups"
23f87bed
MB		 927 ["Make a foreign group..." gnus-group-make-group t]
928 ["Add a directory group..." gnus-group-make-directory-group t]
eec82323
LMI		 929 ["Add the help group" gnus-group-make-help-group t]
930 ["Add the archive group" gnus-group-make-archive-group t]
23f87bed
MB		 931 ["Make a doc group..." gnus-group-make-doc-group t]
932 ["Make a web group..." gnus-group-make-web-group t]
23f87bed
MB		 933 ["Make a virtual group..." gnus-group-make-empty-virtual t]
934 ["Add a group to a virtual..." gnus-group-add-to-virtual t]
935 ["Make an ephemeral group..." gnus-group-read-ephemeral-group t]
936 ["Make an RSS group..." gnus-group-make-rss-group t]
937 ["Rename group..." gnus-group-rename-group
eec82323
LMI		 938 (gnus-check-backend-function
939 'request-rename-group (gnus-group-group-name))]
940 ["Delete group" gnus-group-delete-group
941 (gnus-check-backend-function
942 'request-delete-group (gnus-group-group-name))])
943 ("Move"
944 ["Next" gnus-group-next-group t]
945 ["Previous" gnus-group-prev-group t]
946 ["Next unread" gnus-group-next-unread-group t]
947 ["Previous unread" gnus-group-prev-unread-group t]
948 ["Next unread same level" gnus-group-next-unread-group-same-level t]
949 ["Previous unread same level"
950 gnus-group-prev-unread-group-same-level t]
23f87bed 951 ["Jump to group..." gnus-group-jump-to-group t]
eec82323
LMI		 952 ["First unread group" gnus-group-first-unread-group t]
953 ["Best unread group" gnus-group-best-unread-group t])
23f87bed
MB		 954 ("Sieve"
955 ["Generate" gnus-sieve-generate t]
956 ["Generate and update" gnus-sieve-update t])
eec82323 957 ["Delete bogus groups" gnus-group-check-bogus-groups t]
a8151ef7 958 ["Find new newsgroups" gnus-group-find-new-groups t]
eec82323
LMI		 959 ["Transpose" gnus-group-transpose-groups
960 (gnus-group-group-name)]
a8151ef7 961 ["Read a directory as a group..." gnus-group-enter-directory t]))
eec82323
LMI		 962
963 (easy-menu-define
964 gnus-group-misc-menu gnus-group-mode-map ""
23f87bed 965 `("Gnus"
eec82323 966 ["Send a mail" gnus-group-mail t]
23f87bed
MB		 967 ["Send a message (mail or news)" gnus-group-post-news t]
968 ["Create a local message" gnus-group-news t]
84b9b23e 969 ["Check for new news" gnus-group-get-new-news
23f87bed
MB		 970 ,@(if (featurep 'xemacs) '(t)
971 '(:help "Get newly arrived articles"))
972 ]
973 ["Send queued messages" gnus-delay-send-queue
974 ,@(if (featurep 'xemacs) '(t)
975 '(:help "Send all messages that are scheduled to be sent now"))
976 ]
eec82323
LMI		 977 ["Activate all groups" gnus-activate-all-groups t]
978 ["Restart Gnus" gnus-group-restart t]
979 ["Read init file" gnus-group-read-init-file t]
23f87bed 980 ["Browse foreign server..." gnus-group-browse-foreign-server t]
eec82323
LMI		 981 ["Enter server buffer" gnus-group-enter-server-mode t]
982 ["Expire all expirable articles" gnus-group-expire-all-groups t]
eec82323
LMI		 983 ["Gnus version" gnus-version t]
984 ["Save .newsrc files" gnus-group-save-newsrc t]
985 ["Suspend Gnus" gnus-group-suspend t]
986 ["Clear dribble buffer" gnus-group-clear-dribble t]
987 ["Read manual" gnus-info-find-node t]
988 ["Flush score cache" gnus-score-flush-cache t]
989 ["Toggle topics" gnus-topic-mode t]
6748645f 990 ["Send a bug report" gnus-bug t]
84b9b23e 991 ["Exit from Gnus" gnus-group-exit
23f87bed
MB		 992 ,@(if (featurep 'xemacs) '(t)
993 '(:help "Quit reading news"))]
a8151ef7 994 ["Exit without saving" gnus-group-quit t]))
eec82323 995
6748645f 996 (gnus-run-hooks 'gnus-group-menu-hook)))
eec82323 997
18c06a99
RS		 998
999(defvar gnus-group-tool-bar-map nil)
1000
1001(defun gnus-group-tool-bar-update (&optional symbol value)
1002 "Update group buffer toolbar.
1003Setter function for custom variables."
1004 (when symbol
1005 (set-default symbol value))
1006 ;; (setq-default gnus-group-tool-bar-map nil)
1007 ;; (use-local-map gnus-group-mode-map)
1008 (when (gnus-alive-p)
1009 (with-current-buffer gnus-group-buffer
1010 (gnus-group-make-tool-bar t))))
1011
1012(defcustom gnus-group-tool-bar (if (eq gmm-tool-bar-style 'gnome)
1013 'gnus-group-tool-bar-gnome
1014 'gnus-group-tool-bar-retro)
1015 "Specifies the Gnus group tool bar.
1016
1017It can be either a list or a symbol refering to a list. See
1018`gmm-tool-bar-from-list' for the format of the list. The
1019default key map is `gnus-group-mode-map'.
1020
1021Pre-defined symbols include `gnus-group-tool-bar-gnome' and
1022`gnus-group-tool-bar-retro'."
1023 :type '(choice (const :tag "GNOME style" gnus-group-tool-bar-gnome)
1024 (const :tag "Retro look" gnus-group-tool-bar-retro)
1025 (repeat :tag "User defined list" gmm-tool-bar-item)
1026 (symbol))
330f707b 1027 :version "23.1" ;; No Gnus
18c06a99
RS		 1028 :initialize 'custom-initialize-default
1029 :set 'gnus-group-tool-bar-update
1030 :group 'gnus-group)
1031
1032(defcustom gnus-group-tool-bar-gnome
1033 '((gnus-group-post-news "mail/compose")
1034 ;; Some useful agent icons? I don't use the agent so agent users should
1035 ;; suggest useful commands:
18c06a99 1036 (gnus-agent-toggle-plugged "disconnect" t
9b9e104e
MB		 1037 :help "Gnus is currently unplugged. Click to work online."
1038 :visible (and gnus-agent (not gnus-plugged)))
1039 (gnus-agent-toggle-plugged "connect" t
1040 :help "Gnus is currently plugged. Click to work offline."
18c06a99
RS		 1041 :visible (and gnus-agent gnus-plugged))
1042 ;; FIXME: gnus-agent-toggle-plugged (in gnus-agent-group-make-menu-bar)
1043 ;; should have a better help text.
1044 (gnus-group-send-queue "mail/outbox" t
1045 :visible (and gnus-agent gnus-plugged)
1046 :help "Send articles from the queue group")
1047 (gnus-group-get-new-news "mail/inbox" nil
1048 :visible (or (not gnus-agent)
1049 gnus-plugged))
1050 ;; FIXME: gnus-*-read-group should have a better help text.
1051 (gnus-topic-read-group "open" nil
1052 :visible (and (boundp 'gnus-topic-mode)
1053 gnus-topic-mode))
1054 (gnus-group-read-group "open" nil
1055 :visible (not (and (boundp 'gnus-topic-mode)
1056 gnus-topic-mode)))
1057 ;; (gnus-group-find-new-groups "???" nil)
1058 (gnus-group-save-newsrc "save")
1059 (gnus-group-describe-group "describe")
1060 (gnus-group-unsubscribe-current-group "gnus/toggle-subscription")
1061 (gnus-group-prev-unread-group "left-arrow")
1062 (gnus-group-next-unread-group "right-arrow")
1063 (gnus-group-exit "exit")
1064 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
1065 (gnus-info-find-node "help"))
1066 "List of functions for the group tool bar (GNOME style).
1067
1068See `gmm-tool-bar-from-list' for the format of the list."
1069 :type '(repeat gmm-tool-bar-item)
330f707b 1070 :version "23.1" ;; No Gnus
18c06a99
RS		 1071 :initialize 'custom-initialize-default
1072 :set 'gnus-group-tool-bar-update
1073 :group 'gnus-group)
1074
1075(defcustom gnus-group-tool-bar-retro
1076 '((gnus-group-get-new-news "gnus/get-news")
1077 (gnus-group-get-new-news-this-group "gnus/gnntg")
1078 (gnus-group-catchup-current "gnus/catchup")
1079 (gnus-group-describe-group "gnus/describe-group")
1080 (gnus-group-subscribe "gnus/subscribe" t
1081 :help "Subscribe to the current group")
1082 (gnus-group-unsubscribe "gnus/unsubscribe" t
1083 :help "Unsubscribe from the current group")
1084 (gnus-group-exit "gnus/exit-gnus" gnus-group-mode-map))
1085 "List of functions for the group tool bar (retro look).
1086
1087See `gmm-tool-bar-from-list' for the format of the list."
1088 :type '(repeat gmm-tool-bar-item)
330f707b 1089 :version "23.1" ;; No Gnus
18c06a99
RS		 1090 :initialize 'custom-initialize-default
1091 :set 'gnus-group-tool-bar-update
1092 :group 'gnus-group)
1093
1094(defcustom gnus-group-tool-bar-zap-list t
1095 "List of icon items from the global tool bar.
1096These items are not displayed in the Gnus group mode tool bar.
1097
1098See `gmm-tool-bar-from-list' for the format of the list."
1099 :type 'gmm-tool-bar-zap-list
330f707b 1100 :version "23.1" ;; No Gnus
18c06a99
RS		 1101 :initialize 'custom-initialize-default
1102 :set 'gnus-group-tool-bar-update
1103 :group 'gnus-group)
1104
1105(defvar image-load-path)
aea499b2 1106(defvar tool-bar-map)
18c06a99
RS		 1107
1108(defun gnus-group-make-tool-bar (&optional force)
1109 "Make a group mode tool bar from `gnus-group-tool-bar'.
1110When FORCE, rebuild the tool bar."
1111 (when (and (not (featurep 'xemacs))
1112 (boundp 'tool-bar-mode)
1113 tool-bar-mode
1114 ;; The Gnus 5.10.6 code checked (default-value 'tool-bar-mode).
1115 ;; Why? --rsteib
1116 (or (not gnus-group-tool-bar-map) force))
1117 (let* ((load-path
1118 (gmm-image-load-path-for-library "gnus"
1119 "gnus/toggle-subscription.xpm"
1120 nil t))
1121 (image-load-path (cons (car load-path)
1122 (when (boundp 'image-load-path)
1123 image-load-path)))
1124 (map (gmm-tool-bar-from-list gnus-group-tool-bar
1125 gnus-group-tool-bar-zap-list
1126 'gnus-group-mode-map)))
1127 (if map
1128 (set (make-local-variable 'tool-bar-map) map))))
1129 gnus-group-tool-bar-map)
84b9b23e 1130
eec82323
LMI		 1131(defun gnus-group-mode ()
1132 "Major mode for reading news.
1133
1134All normal editing commands are switched off.
1135\\<gnus-group-mode-map>
c30ba437 1136The group buffer lists (some of) the groups available. For instance,
eec82323
LMI		 1137`\\[gnus-group-list-groups]' will list all subscribed groups with unread articles, while `\\[gnus-group-list-zombies]'
1138lists all zombie groups.
1139
1140Groups that are displayed can be entered with `\\[gnus-group-read-group]'. To subscribe
1141to a group not displayed, type `\\[gnus-group-unsubscribe-group]'.
1142
1143For more in-depth information on this mode, read the manual (`\\[gnus-info-find-node]').
1144
1145The following commands are available:
1146
1147\\{gnus-group-mode-map}"
1148 (interactive)
619a6b30 1149 (kill-all-local-variables)
eec82323 1150 (when (gnus-visual-p 'group-menu 'menu)
84b9b23e
DL		 1151 (gnus-group-make-menu-bar)
1152 (gnus-group-make-tool-bar))
eec82323
LMI		 1153 (gnus-simplify-mode-line)
1154 (setq major-mode 'gnus-group-mode)
1155 (setq mode-name "Group")
1156 (gnus-group-set-mode-line)
1157 (setq mode-line-process nil)
1158 (use-local-map gnus-group-mode-map)
16409b0b 1159 (buffer-disable-undo)
eec82323 1160 (setq truncate-lines t)
01c52d31
MB		 1161 (setq buffer-read-only t
1162 show-trailing-whitespace nil)
eec82323
LMI		 1163 (gnus-set-default-directory)
1164 (gnus-update-format-specifications nil 'group 'group-mode)
1165 (gnus-update-group-mark-positions)
eec82323
LMI		 1166 (when gnus-use-undo
1167 (gnus-undo-mode 1))
6748645f
LMI		 1168 (when gnus-slave
1169 (gnus-slave-mode))
cfcd5c91 1170 (gnus-run-mode-hooks 'gnus-group-mode-hook))
eec82323
LMI		 1171
1172(defun gnus-update-group-mark-positions ()
1173 (save-excursion
6748645f 1174 (let ((gnus-process-mark ?\200)
23f87bed 1175 (gnus-group-update-hook nil)
eec82323 1176 (gnus-group-marked '("dummy.group"))
6748645f
LMI		 1177 (gnus-active-hashtb (make-vector 10 0))
1178 (topic ""))
eec82323
LMI		 1179 (gnus-set-active "dummy.group" '(0 . 0))
1180 (gnus-set-work-buffer)
1181 (gnus-group-insert-group-line "dummy.group" 0 nil 0 nil)
1182 (goto-char (point-min))
1183 (setq gnus-group-mark-positions
7c3bb5a5 1184 (list (cons 'process (and (search-forward
dacb905a
SM		 1185 (mm-string-to-multibyte "\200") nil t)
1186 (- (point) (point-min) 1))))))))
eec82323 1187
eec82323
LMI		 1188(defun gnus-mouse-pick-group (e)
1189 "Enter the group under the mouse pointer."
1190 (interactive "e")
1191 (mouse-set-point e)
1192 (gnus-group-read-group nil))
1193
1194;; Look at LEVEL and find out what the level is really supposed to be.
1195;; If LEVEL is non-nil, LEVEL will be returned, if not, what happens
1196;; will depend on whether `gnus-group-use-permanent-levels' is used.
1197(defun gnus-group-default-level (&optional level number-or-nil)
1198 (cond
1199 (gnus-group-use-permanent-levels
1200 (or (setq gnus-group-use-permanent-levels
1201 (or level (if (numberp gnus-group-use-permanent-levels)
1202 gnus-group-use-permanent-levels
1203 (or gnus-group-default-list-level
1204 gnus-level-subscribed))))
1205 gnus-group-default-list-level gnus-level-subscribed))
1206 (number-or-nil
1207 level)
1208 (t
1209 (or level gnus-group-default-list-level gnus-level-subscribed))))
1210
1211(defun gnus-group-setup-buffer ()
6748645f 1212 (set-buffer (gnus-get-buffer-create gnus-group-buffer))
eec82323 1213 (unless (eq major-mode 'gnus-group-mode)
eec82323
LMI		 1214 (gnus-group-mode)
1215 (when gnus-carpal
1216 (gnus-carpal-setup-buffer 'group))))
1217
23f87bed 1218(defun gnus-group-name-charset (method group)
16409b0b
GM		 1219 (if (null method)
1220 (setq method (gnus-find-method-for-group group)))
01c52d31
MB		 1221 (let ((item (or (assoc method gnus-group-name-charset-method-alist)
1222 (and (consp method)
1223 (assoc (list (car method) (cadr method))
1224 gnus-group-name-charset-method-alist))))
16409b0b
GM		 1225 (alist gnus-group-name-charset-group-alist)
1226 result)
a1506d29 1227 (if item
16409b0b
GM		 1228 (cdr item)
1229 (while (setq item (pop alist))
1230 (if (string-match (car item) group)
1231 (setq alist nil
1232 result (cdr item))))
1233 result)))
1234
23f87bed
MB		 1235(defun gnus-group-name-decode (string charset)
1236 ;; Fixme: Don't decode in unibyte mode.
16409b0b
GM		 1237 (if (and string charset (featurep 'mule))
1238 (mm-decode-coding-string string charset)
1239 string))
1240
1241(defun gnus-group-decoded-name (string)
1242 (let ((charset (gnus-group-name-charset nil string)))
1243 (gnus-group-name-decode string charset)))
1244
eec82323
LMI		 1245(defun gnus-group-list-groups (&optional level unread lowest)
1246 "List newsgroups with level LEVEL or lower that have unread articles.
1247Default is all subscribed groups.
1248If argument UNREAD is non-nil, groups with no unread articles are also
1249listed.
1250
1251Also see the `gnus-group-use-permanent-levels' variable."
1252 (interactive
1253 (list (if current-prefix-arg
1254 (prefix-numeric-value current-prefix-arg)
1255 (or
1256 (gnus-group-default-level nil t)
1257 gnus-group-default-list-level
1258 gnus-level-subscribed))))
eec82323
LMI		 1259 (unless level
1260 (setq level (car gnus-group-list-mode)
1261 unread (cdr gnus-group-list-mode)))
1262 (setq level (gnus-group-default-level level))
1263 (gnus-group-setup-buffer)
1264 (gnus-update-format-specifications nil 'group 'group-mode)
1265 (let ((case-fold-search nil)
01c52d31 1266 (props (text-properties-at (point-at-bol)))
eec82323
LMI		 1267 (empty (= (point-min) (point-max)))
1268 (group (gnus-group-group-name))
1269 number)
1270 (set-buffer gnus-group-buffer)
1271 (setq number (funcall gnus-group-prepare-function level unread lowest))
1272 (when (or (and (numberp number)
1273 (zerop number))
1274 (zerop (buffer-size)))
1275 ;; No groups in the buffer.
1276 (gnus-message 5 gnus-no-groups-message))
1277 ;; We have some groups displayed.
1278 (goto-char (point-max))
1279 (when (or (not gnus-group-goto-next-group-function)
1280 (not (funcall gnus-group-goto-next-group-function
1281 group props)))
1282 (cond
1283 (empty
1284 (goto-char (point-min)))
1285 ((not group)
1286 ;; Go to the first group with unread articles.
1287 (gnus-group-search-forward t))
1288 (t
1289 ;; Find the right group to put point on. If the current group
1290 ;; has disappeared in the new listing, try to find the next
1291 ;; one. If no next one can be found, just leave point at the
1292 ;; first newsgroup in the buffer.
1293 (when (not (gnus-goto-char
1294 (text-property-any
1295 (point-min) (point-max)
1296 'gnus-group (gnus-intern-safe
1297 group gnus-active-hashtb))))
01c52d31 1298 (let ((newsrc (cdddr (gnus-group-entry group))))
eec82323
LMI		 1299 (while (and newsrc
1300 (not (gnus-goto-char
1301 (text-property-any
1302 (point-min) (point-max) 'gnus-group
1303 (gnus-intern-safe
1304 (caar newsrc) gnus-active-hashtb)))))
1305 (setq newsrc (cdr newsrc)))
1306 (unless newsrc
1307 (goto-char (point-max))
1308 (forward-line -1)))))))
1309 ;; Adjust cursor point.
1310 (gnus-group-position-point)))
1311
1312(defun gnus-group-list-level (level &optional all)
1313 "List groups on LEVEL.
1314If ALL (the prefix), also list groups that have no unread articles."
1315 (interactive "nList groups on level: \nP")
1316 (gnus-group-list-groups level all level))
1317
23f87bed
MB		 1318(defun gnus-group-prepare-logic (group test)
1319 (or (and gnus-group-listed-groups
1320 (null gnus-group-list-option)
1321 (member group gnus-group-listed-groups))
1322 (cond
1323 ((null gnus-group-listed-groups) test)
1324 ((null gnus-group-list-option) test)
1325 (t (and (member group gnus-group-listed-groups)
1326 (if (eq gnus-group-list-option 'flush)
1327 (not test)
1328 test))))))
1329
1330(defun gnus-group-prepare-flat (level &optional predicate lowest regexp)
eec82323 1331 "List all newsgroups with unread articles of level LEVEL or lower.
23f87bed
MB		 1332If PREDICATE is a function, list groups that the function returns non-nil;
1333if it is t, list groups that have no unread articles.
eec82323 1334If LOWEST is non-nil, list all newsgroups of level LOWEST or higher.
23f87bed
MB		 1335If REGEXP is a function, list dead groups that the function returns non-nil;
1336if it is a string, only list groups matching REGEXP."
eec82323
LMI		 1337 (set-buffer gnus-group-buffer)
1338 (let ((buffer-read-only nil)
1339 (newsrc (cdr gnus-newsrc-alist))
1340 (lowest (or lowest 1))
23f87bed
MB		 1341 (not-in-list (and gnus-group-listed-groups
1342 (copy-sequence gnus-group-listed-groups)))
eec82323
LMI		 1343 info clevel unread group params)
1344 (erase-buffer)
23f87bed
MB		 1345 (when (or (< lowest gnus-level-zombie)
1346 gnus-group-listed-groups)
eec82323
LMI		 1347 ;; List living groups.
1348 (while newsrc
1349 (setq info (car newsrc)
1350 group (gnus-info-group info)
1351 params (gnus-info-params info)
1352 newsrc (cdr newsrc)
01c52d31 1353 unread (gnus-group-unread group))
23f87bed
MB		 1354 (when not-in-list
1355 (setq not-in-list (delete group not-in-list)))
1356 (when (gnus-group-prepare-logic
1357 group
7fa123c8
KY		 1358 (and (or unread ; This group might be unchecked
1359 predicate) ; Check if this group should be listed
23f87bed
MB		 1360 (or (not (stringp regexp))
1361 (string-match regexp group))
1362 (<= (setq clevel (gnus-info-level info)) level)
1363 (>= clevel lowest)
1364 (cond
1365 ((functionp predicate)
1366 (funcall predicate info))
1367 (predicate t) ; We list all groups?
1368 (t
1369 (or
1370 (if (eq unread t) ; Unactivated?
1371 gnus-group-list-inactive-groups
1372 ; We list unactivated
7fa123c8 1373 (and (numberp unread) (> unread 0)))
23f87bed
MB		 1374 ; We list groups with unread articles
1375 (and gnus-list-groups-with-ticked-articles
1376 (cdr (assq 'tick (gnus-info-marks info))))
eec82323 1377 ; And groups with tickeds
23f87bed
MB		 1378 ;; Check for permanent visibility.
1379 (and gnus-permanently-visible-groups
1380 (string-match gnus-permanently-visible-groups
1381 group))
1382 (memq 'visible params)
1383 (cdr (assq 'visible params)))))))
1384 (gnus-group-insert-group-line
1385 group (gnus-info-level info)
1386 (gnus-info-marks info) unread (gnus-info-method info)))))
eec82323
LMI		 1387
1388 ;; List dead groups.
23f87bed
MB		 1389 (when (or gnus-group-listed-groups
1390 (and (>= level gnus-level-zombie)
1391 (<= lowest gnus-level-zombie)))
1392 (gnus-group-prepare-flat-list-dead
1393 (setq gnus-zombie-list (sort gnus-zombie-list 'string<))
1394 gnus-level-zombie ?Z
1395 regexp))
1396 (when not-in-list
1397 (dolist (group gnus-zombie-list)
1398 (setq not-in-list (delete group not-in-list))))
1399 (when (or gnus-group-listed-groups
1400 (and (>= level gnus-level-killed) (<= lowest gnus-level-killed)))
1401 (gnus-group-prepare-flat-list-dead
1402 (gnus-union
1403 not-in-list
1404 (setq gnus-killed-list (sort gnus-killed-list 'string<)))
1405 gnus-level-killed ?K regexp))
eec82323
LMI		 1406
1407 (gnus-group-set-mode-line)
23f87bed 1408 (setq gnus-group-list-mode (cons level predicate))
6748645f 1409 (gnus-run-hooks 'gnus-group-prepare-hook)
eec82323
LMI		 1410 t))
1411
1412(defun gnus-group-prepare-flat-list-dead (groups level mark regexp)
1413 ;; List zombies and killed lists somewhat faster, which was
1414 ;; suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>. It does
1415 ;; this by ignoring the group format specification altogether.
1416 (let (group)
23f87bed 1417 (if (> (length groups) gnus-group-listing-limit)
eec82323
LMI		 1418 (while groups
1419 (setq group (pop groups))
23f87bed
MB		 1420 (when (gnus-group-prepare-logic
1421 group
1422 (or (not regexp)
1423 (and (stringp regexp) (string-match regexp group))
1424 (and (functionp regexp) (funcall regexp group))))
eec82323
LMI		 1425 (gnus-add-text-properties
1426 (point) (prog1 (1+ (point))
16409b0b 1427 (insert " " mark " *: "
23f87bed 1428 (gnus-group-decoded-name group)
16409b0b 1429 "\n"))
eec82323
LMI		 1430 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
1431 'gnus-unread t
1432 'gnus-level level))))
eec82323 1433 (while groups
16409b0b 1434 (setq group (pop groups))
23f87bed
MB		 1435 (when (gnus-group-prepare-logic
1436 group
1437 (or (not regexp)
1438 (and (stringp regexp) (string-match regexp group))
1439 (and (functionp regexp) (funcall regexp group))))
1440 (gnus-group-insert-group-line
1441 group level nil
1442 (let ((active (gnus-active group)))
1443 (if active
1444 (if (zerop (cdr active))
1445 0
1446 (- (1+ (cdr active)) (car active)))
1447 nil))
1448 (gnus-method-simplify (gnus-find-method-for-group group))))))))
eec82323
LMI		 1449
1450(defun gnus-group-update-group-line ()
1451 "Update the current line in the group buffer."
1452 (let* ((buffer-read-only nil)
1453 (group (gnus-group-group-name))
01c52d31 1454 (entry (and group (gnus-group-entry group)))
eec82323
LMI		 1455 gnus-group-indentation)
1456 (when group
1457 (and entry
1458 (not (gnus-ephemeral-group-p group))
1459 (gnus-dribble-enter
1460 (concat "(gnus-group-set-info '"
1461 (gnus-prin1-to-string (nth 2 entry))
1462 ")")))
1463 (setq gnus-group-indentation (gnus-group-group-indentation))
1464 (gnus-delete-line)
1465 (gnus-group-insert-group-line-info group)
1466 (forward-line -1)
1467 (gnus-group-position-point))))
1468
1469(defun gnus-group-insert-group-line-info (group)
1470 "Insert GROUP on the current line."
01c52d31 1471 (let ((entry (gnus-group-entry group))
eec82323
LMI		 1472 (gnus-group-indentation (gnus-group-group-indentation))
1473 active info)
1474 (if entry
1475 (progn
1476 ;; (Un)subscribed group.
1477 (setq info (nth 2 entry))
1478 (gnus-group-insert-group-line
1479 group (gnus-info-level info) (gnus-info-marks info)
1480 (or (car entry) t) (gnus-info-method info)))
1481 ;; This group is dead.
1482 (gnus-group-insert-group-line
1483 group
1484 (if (member group gnus-zombie-list) gnus-level-zombie gnus-level-killed)
1485 nil
1486 (if (setq active (gnus-active group))
1487 (if (zerop (cdr active))
1488 0
1489 (- (1+ (cdr active)) (car active)))
1490 nil)
23f87bed
MB		 1491 (gnus-method-simplify (gnus-find-method-for-group group))))))
1492
1493(defun gnus-number-of-unseen-articles-in-group (group)
1494 (let* ((info (nth 2 (gnus-group-entry group)))
1495 (marked (gnus-info-marks info))
1496 (seen (cdr (assq 'seen marked)))
1497 (active (gnus-active group)))
1498 (if (not active)
1499 0
1500 (length (gnus-uncompress-range
1501 (gnus-range-difference
1502 (gnus-range-difference (list active) (gnus-info-read info))
1503 seen))))))
eec82323 1504
18c06a99 1505;; Moving through the Group buffer (in topic mode) e.g. with C-n doesn't
25bf7349
MB		 1506;; update the state (enabled/disabled) of the icon `gnus-group-describe-group'
1507;; automatically. After `C-l' the state is correct. See the following report
1508;; on emacs-devel
18c06a99 1509;; <http://thread.gmane.org/v9acdmrcse.fsf@marauder.physik.uni-ulm.de>:
18c06a99
RS		 1510;; From: Reiner Steib
1511;; Subject: tool bar icons not updated according to :active condition
1512;; Newsgroups: gmane.emacs.devel
1513;; Date: Mon, 23 Jan 2006 19:59:13 +0100
1514;; Message-ID: <v9acdmrcse.fsf@marauder.physik.uni-ulm.de>
1515
85fd8002
RS		 1516(defcustom gnus-group-update-tool-bar
1517 (and (not (featurep 'xemacs))
1518 (boundp 'tool-bar-mode)
1519 tool-bar-mode
1520 ;; Using `redraw-frame' (see `gnus-tool-bar-update') in Emacs 21 might
1521 ;; be confusing, so maybe we shouldn't call it by default.
1522 (fboundp 'force-window-update))
1523 "Force updating the group buffer tool bar."
1524 :group 'gnus-group
1525 :version "22.1"
5af68e28
MB		 1526 :initialize 'custom-initialize-default
1527 :set (lambda (symbol value)
1528 (set-default symbol value)
1529 (when (gnus-alive-p)
1530 (with-current-buffer gnus-group-buffer
1531 ;; FIXME: Is there a better way to redraw the group buffer?
1532 (gnus-group-get-new-news 0))))
85fd8002
RS		 1533 :type 'boolean)
1534
eec82323
LMI		 1535(defun gnus-group-insert-group-line (gnus-tmp-group gnus-tmp-level
1536 gnus-tmp-marked number
1537 gnus-tmp-method)
1538 "Insert a group line in the group buffer."
16409b0b 1539 (let* ((gnus-tmp-method
a1506d29 1540 (gnus-server-get-method gnus-tmp-group gnus-tmp-method))
16409b0b
GM		 1541 (group-name-charset (gnus-group-name-charset gnus-tmp-method
1542 gnus-tmp-group))
1543 (gnus-tmp-active (gnus-active gnus-tmp-group))
eec82323
LMI		 1544 (gnus-tmp-number-total
1545 (if gnus-tmp-active
1546 (1+ (- (cdr gnus-tmp-active) (car gnus-tmp-active)))
1547 0))
1548 (gnus-tmp-number-of-unread
1549 (if (numberp number) (int-to-string (max 0 number))
1550 "*"))
1551 (gnus-tmp-number-of-read
1552 (if (numberp number)
1553 (int-to-string (max 0 (- gnus-tmp-number-total number)))
1554 "*"))
1555 (gnus-tmp-subscribed
1556 (cond ((<= gnus-tmp-level gnus-level-subscribed) ? )
1557 ((<= gnus-tmp-level gnus-level-unsubscribed) ?U)
1558 ((= gnus-tmp-level gnus-level-zombie) ?Z)
1559 (t ?K)))
a1506d29 1560 (gnus-tmp-qualified-group
16409b0b
GM		 1561 (gnus-group-name-decode (gnus-group-real-name gnus-tmp-group)
1562 group-name-charset))
23f87bed
MB		 1563 (gnus-tmp-comment
1564 (or (gnus-group-get-parameter gnus-tmp-group 'comment t)
1565 gnus-tmp-group))
eec82323
LMI		 1566 (gnus-tmp-newsgroup-description
1567 (if gnus-description-hashtb
16409b0b 1568 (or (gnus-group-name-decode
a1506d29 1569 (gnus-gethash gnus-tmp-group gnus-description-hashtb)
16409b0b 1570 group-name-charset) "")
eec82323
LMI		 1571 ""))
1572 (gnus-tmp-moderated
1573 (if (and gnus-moderated-hashtb
1574 (gnus-gethash gnus-tmp-group gnus-moderated-hashtb))
1575 ?m ? ))
1576 (gnus-tmp-moderated-string
1577 (if (eq gnus-tmp-moderated ?m) "(m)" ""))
16409b0b 1578 (gnus-tmp-group-icon "==&&==")
eec82323
LMI		 1579 (gnus-tmp-news-server (or (cadr gnus-tmp-method) ""))
1580 (gnus-tmp-news-method (or (car gnus-tmp-method) ""))
1581 (gnus-tmp-news-method-string
1582 (if gnus-tmp-method
1583 (format "(%s:%s)" (car gnus-tmp-method)
1584 (cadr gnus-tmp-method)) ""))
1585 (gnus-tmp-marked-mark
1586 (if (and (numberp number)
1587 (zerop number)
1588 (cdr (assq 'tick gnus-tmp-marked)))
1589 ?* ? ))
23f87bed
MB		 1590 (gnus-tmp-summary-live
1591 (if (and (not gnus-group-is-exiting-p)
1592 (gnus-buffer-live-p (gnus-summary-buffer-name
1593 gnus-tmp-group)))
1594 ?* ? ))
eec82323
LMI		 1595 (gnus-tmp-process-marked
1596 (if (member gnus-tmp-group gnus-group-marked)
1597 gnus-process-mark ? ))
eec82323 1598 (buffer-read-only nil)
85fd8002 1599 beg end
eec82323
LMI		 1600 header gnus-tmp-header) ; passed as parameter to user-funcs.
1601 (beginning-of-line)
85fd8002 1602 (setq beg (point))
eec82323
LMI		 1603 (gnus-add-text-properties
1604 (point)
1605 (prog1 (1+ (point))
1606 ;; Insert the text.
91472578
MB		 1607 (let ((gnus-tmp-decoded-group (gnus-group-name-decode
1608 gnus-tmp-group group-name-charset)))
23f87bed 1609 (eval gnus-group-line-format-spec)))
eec82323
LMI		 1610 `(gnus-group ,(gnus-intern-safe gnus-tmp-group gnus-active-hashtb)
1611 gnus-unread ,(if (numberp number)
e9bd5782 1612 (string-to-number gnus-tmp-number-of-unread)
eec82323
LMI		 1613 t)
1614 gnus-marked ,gnus-tmp-marked-mark
1615 gnus-indentation ,gnus-group-indentation
1616 gnus-level ,gnus-tmp-level))
85fd8002
RS		 1617 (setq end (point))
1618 (when gnus-group-update-tool-bar
1619 (gnus-put-text-property beg end 'point-entered
1620 'gnus-tool-bar-update)
1621 (gnus-put-text-property beg end 'point-left
1622 'gnus-tool-bar-update))
16409b0b 1623 (forward-line -1)
eec82323 1624 (when (inline (gnus-visual-p 'group-highlight 'highlight))
16409b0b
GM		 1625 (gnus-run-hooks 'gnus-group-update-hook))
1626 (forward-line)
eec82323
LMI		 1627 ;; Allow XEmacs to remove front-sticky text properties.
1628 (gnus-group-remove-excess-properties)))
1629
1630(defun gnus-group-highlight-line ()
1631 "Highlight the current line according to `gnus-group-highlight'."
1632 (let* ((list gnus-group-highlight)
1633 (p (point))
01c52d31 1634 (end (point-at-eol))
eec82323
LMI		 1635 ;; now find out where the line starts and leave point there.
1636 (beg (progn (beginning-of-line) (point)))
1637 (group (gnus-group-group-name))
1638 (entry (gnus-group-entry group))
1639 (unread (if (numberp (car entry)) (car entry) 0))
1640 (active (gnus-active group))
1641 (total (if active (1+ (- (cdr active) (car active))) 0))
1642 (info (nth 2 entry))
23f87bed 1643 (method (inline (gnus-server-get-method group (gnus-info-method info))))
eec82323 1644 (marked (gnus-info-marks info))
23f87bed
MB		 1645 (mailp (apply 'append
1646 (mapcar
1647 (lambda (x)
1648 (memq x (assoc (symbol-name
1649 (car (or method gnus-select-method)))
1650 gnus-valid-select-methods)))
1651 '(mail post-mail))))
6748645f 1652 (level (or (gnus-info-level info) gnus-level-killed))
eec82323
LMI		 1653 (score (or (gnus-info-score info) 0))
1654 (ticked (gnus-range-length (cdr (assq 'tick marked))))
1655 (group-age (gnus-group-timestamp-delta group))
1656 (inhibit-read-only t))
b890d447
MB		 1657 ;; FIXME: http://thread.gmane.org/gmane.emacs.gnus.general/65451/focus=65465
1658 ;; ======================================================================
1659 ;; From: Richard Stallman
1660 ;; Subject: Re: Rewriting gnus-group-highlight-line (was: [...])
1661 ;; Cc: ding@gnus.org
1662 ;; Date: Sat, 27 Oct 2007 19:41:20 -0400
1663 ;; Message-ID: <E1IlvHM-0006TS-7t@fencepost.gnu.org>
1664 ;;
1665 ;; [...]
1666 ;; The kludge is that the alist elements contain expressions that refer
1667 ;; to local variables with short names. Perhaps write your own tiny
1668 ;; evaluator that handles just `and', `or', and numeric comparisons
1669 ;; and just a few specific variables.
1670 ;; ======================================================================
1671 ;;
1672 ;; Similar for other evaluated variables. Grep for risky-local-variable
1673 ;; to find them! -- rsteib
1674 ;;
eec82323
LMI		 1675 ;; Eval the cars of the lists until we find a match.
1676 (while (and list
1677 (not (eval (caar list))))
1678 (setq list (cdr list)))
1679 (let ((face (cdar list)))
1680 (unless (eq face (get-text-property beg 'face))
6748645f 1681 (gnus-put-text-property-excluding-characters-with-faces
eec82323
LMI		 1682 beg end 'face
1683 (setq face (if (boundp face) (symbol-value face) face)))
1684 (gnus-extent-start-open beg)))
1685 (goto-char p)))
1686
1687(defun gnus-group-update-group (group &optional visible-only)
1688 "Update all lines where GROUP appear.
1689If VISIBLE-ONLY is non-nil, the group won't be displayed if it isn't
1690already."
765abcce
SM		 1691 (with-current-buffer gnus-group-buffer
1692 (save-excursion
1693 ;; The buffer may be narrowed.
1694 (save-restriction
1695 (widen)
1696 (let ((ident (gnus-intern-safe group gnus-active-hashtb))
1697 (loc (point-min))
1698 found buffer-read-only)
1699 ;; Enter the current status into the dribble buffer.
1700 (let ((entry (gnus-group-entry group)))
1701 (when (and entry
1702 (not (gnus-ephemeral-group-p group)))
1703 (gnus-dribble-enter
1704 (concat "(gnus-group-set-info '"
1705 (gnus-prin1-to-string (nth 2 entry))
1706 ")"))))
1707 ;; Find all group instances. If topics are in use, each group
1708 ;; may be listed in more than once.
1709 (while (setq loc (text-property-any
1710 loc (point-max) 'gnus-group ident))
1711 (setq found t)
1712 (goto-char loc)
1713 (let ((gnus-group-indentation (gnus-group-group-indentation)))
1714 (gnus-delete-line)
1715 (gnus-group-insert-group-line-info group)
1716 (save-excursion
1717 (forward-line -1)
1718 (gnus-run-hooks 'gnus-group-update-group-hook)))
1719 (setq loc (1+ loc)))
1720 (unless (or found visible-only)
1721 ;; No such line in the buffer, find out where it's supposed to
1722 ;; go, and insert it there (or at the end of the buffer).
1723 (if gnus-goto-missing-group-function
1724 (funcall gnus-goto-missing-group-function group)
1725 (let ((entry (cddr (gnus-group-entry group))))
1726 (while (and entry (car entry)
1727 (not
1728 (gnus-goto-char
1729 (text-property-any
1730 (point-min) (point-max)
1731 'gnus-group (gnus-intern-safe
1732 (caar entry)
1733 gnus-active-hashtb)))))
1734 (setq entry (cdr entry)))
1735 (or entry (goto-char (point-max)))))
1736 ;; Finally insert the line.
1737 (let ((gnus-group-indentation (gnus-group-group-indentation)))
1738 (gnus-group-insert-group-line-info group)
1739 (save-excursion
1740 (forward-line -1)
1741 (gnus-run-hooks 'gnus-group-update-group-hook))))
1742 (when gnus-group-update-group-function
1743 (funcall gnus-group-update-group-function group))
1744 (gnus-group-set-mode-line))))))
eec82323
LMI		 1745
1746(defun gnus-group-set-mode-line ()
1747 "Update the mode line in the group buffer."
1748 (when (memq 'group gnus-updated-mode-lines)
1749 ;; Yes, we want to keep this mode line updated.
765abcce 1750 (with-current-buffer gnus-group-buffer
eec82323 1751 (let* ((gformat (or gnus-group-mode-line-format-spec
6748645f 1752 (gnus-set-format 'group-mode)))
eec82323
LMI		 1753 (gnus-tmp-news-server (cadr gnus-select-method))
1754 (gnus-tmp-news-method (car gnus-select-method))
1755 (gnus-tmp-colon (if (equal gnus-tmp-news-server "") "" ":"))
1756 (max-len 60)
1757 gnus-tmp-header ;Dummy binding for user-defined formats
1758 ;; Get the resulting string.
1759 (modified
1760 (and gnus-dribble-buffer
1761 (buffer-name gnus-dribble-buffer)
1762 (buffer-modified-p gnus-dribble-buffer)
765abcce 1763 (with-current-buffer gnus-dribble-buffer
eec82323
LMI		 1764 (not (zerop (buffer-size))))))
1765 (mode-string (eval gformat)))
1766 ;; Say whether the dribble buffer has been modified.
a8151ef7
LMI		 1767 (setq mode-line-modified
1768 (if modified (car gnus-mode-line-modified)
1769 (cdr gnus-mode-line-modified)))
eec82323
LMI		 1770 ;; If the line is too long, we chop it off.
1771 (when (> (length mode-string) max-len)
1772 (setq mode-string (substring mode-string 0 (- max-len 4))))
1773 (prog1
1774 (setq mode-line-buffer-identification
1775 (gnus-mode-line-buffer-identification
1776 (list mode-string)))
1777 (set-buffer-modified-p modified))))))
1778
1779(defun gnus-group-group-name ()
1780 "Get the name of the newsgroup on the current line."
01c52d31 1781 (let ((group (get-text-property (point-at-bol) 'gnus-group)))
6748645f
LMI		 1782 (when group
1783 (symbol-name group))))
eec82323
LMI		 1784
1785(defun gnus-group-group-level ()
1786 "Get the level of the newsgroup on the current line."
01c52d31 1787 (get-text-property (point-at-bol) 'gnus-level))
eec82323
LMI		 1788
1789(defun gnus-group-group-indentation ()
1790 "Get the indentation of the newsgroup on the current line."
01c52d31 1791 (or (get-text-property (point-at-bol) 'gnus-indentation)
eec82323
LMI		 1792 (and gnus-group-indentation-function
1793 (funcall gnus-group-indentation-function))
1794 ""))
1795
1796(defun gnus-group-group-unread ()
1797 "Get the number of unread articles of the newsgroup on the current line."
01c52d31 1798 (get-text-property (point-at-bol) 'gnus-unread))
eec82323
LMI		 1799
1800(defun gnus-group-new-mail (group)
1801 (if (nnmail-new-mail-p (gnus-group-real-name group))
1802 gnus-new-mail-mark
1803 ? ))
1804
1805(defun gnus-group-level (group)
1806 "Return the estimated level of GROUP."
1807 (or (gnus-info-level (gnus-get-info group))
6748645f
LMI		 1808 (and (member group gnus-zombie-list) gnus-level-zombie)
1809 gnus-level-killed))
eec82323
LMI		 1810
1811(defun gnus-group-search-forward (&optional backward all level first-too)
1812 "Find the next newsgroup with unread articles.
1813If BACKWARD is non-nil, find the previous newsgroup instead.
1814If ALL is non-nil, just find any newsgroup.
1815If LEVEL is non-nil, find group with level LEVEL, or higher if no such
1816group exists.
1817If FIRST-TOO, the current line is also eligible as a target."
1818 (let ((way (if backward -1 1))
1819 (low gnus-level-killed)
1820 (beg (point))
1821 pos found lev)
1822 (if (and backward (progn (beginning-of-line)) (bobp))
1823 nil
1824 (unless first-too
1825 (forward-line way))
1826 (while (and
1827 (not (eobp))
1828 (not (setq
1829 found
a8151ef7
LMI		 1830 (and
1831 (get-text-property (point) 'gnus-group)
1832 (or all
1833 (and
1834 (let ((unread
1835 (get-text-property (point) 'gnus-unread)))
1836 (and (numberp unread) (> unread 0)))
1837 (setq lev (get-text-property (point)
1838 'gnus-level))
1839 (<= lev gnus-level-subscribed)))
1840 (or (not level)
1841 (and (setq lev (get-text-property (point)
eec82323 1842 'gnus-level))
a8151ef7
LMI		 1843 (or (= lev level)
1844 (and (< lev low)
1845 (< level lev)
1846 (progn
1847 (setq low lev)
1848 (setq pos (point))
1849 nil))))))))
eec82323
LMI		 1850 (zerop (forward-line way)))))
1851 (if found
1852 (progn (gnus-group-position-point) t)
1853 (goto-char (or pos beg))
1854 (and pos t))))
1855
01c52d31
MB		 1856(defun gnus-total-fetched-for (group)
1857 (let* ((size-in-cache (or (gnus-cache-total-fetched-for group) 0))
1858 (size-in-agent (or (gnus-agent-total-fetched-for group) 0))
1859 (size (+ size-in-cache size-in-agent))
1860 (suffix '("B" "K" "M" "G"))
1861 (scale 1024.0)
1862 (cutoff scale))
1863 (while (> size cutoff)
1864 (setq size (/ size scale)
1865 suffix (cdr suffix)))
1866 (format "%5.1f%s" size (car suffix))))
1867
eec82323
LMI		 1868;;; Gnus group mode commands
1869
1870;; Group marking.
1871
16409b0b
GM		 1872(defun gnus-group-mark-line-p ()
1873 (save-excursion
1874 (beginning-of-line)
1875 (forward-char (or (cdr (assq 'process gnus-group-mark-positions)) 2))
1876 (eq (char-after) gnus-process-mark)))
1877
eec82323
LMI		 1878(defun gnus-group-mark-group (n &optional unmark no-advance)
1879 "Mark the current group."
1880 (interactive "p")
1881 (let ((buffer-read-only nil)
1882 group)
1883 (while (and (> n 0)
1884 (not (eobp)))
1885 (when (setq group (gnus-group-group-name))
1886 ;; Go to the mark position.
1887 (beginning-of-line)
1888 (forward-char (or (cdr (assq 'process gnus-group-mark-positions)) 2))
01c52d31
MB		 1889 (delete-char 1)
1890 (if unmark
1891 (progn
1892 (setq gnus-group-marked (delete group gnus-group-marked))
1893 (insert-char ? 1 t))
eec82323
LMI		 1894 (setq gnus-group-marked
1895 (cons group (delete group gnus-group-marked)))
01c52d31 1896 (insert-char gnus-process-mark 1 t)))
eec82323
LMI		 1897 (unless no-advance
1898 (gnus-group-next-group 1))
1899 (decf n))
1900 (gnus-summary-position-point)
1901 n))
1902
1903(defun gnus-group-unmark-group (n)
1904 "Remove the mark from the current group."
1905 (interactive "p")
1906 (gnus-group-mark-group n 'unmark)
1907 (gnus-group-position-point))
1908
1909(defun gnus-group-unmark-all-groups ()
1910 "Unmark all groups."
1911 (interactive)
01c52d31
MB		 1912 (save-excursion
1913 (mapc 'gnus-group-remove-mark gnus-group-marked))
eec82323
LMI		 1914 (gnus-group-position-point))
1915
1916(defun gnus-group-mark-region (unmark beg end)
1917 "Mark all groups between point and mark.
1918If UNMARK, remove the mark instead."
1919 (interactive "P\nr")
1920 (let ((num (count-lines beg end)))
1921 (save-excursion
1922 (goto-char beg)
1923 (- num (gnus-group-mark-group num unmark)))))
1924
1925(defun gnus-group-mark-buffer (&optional unmark)
1926 "Mark all groups in the buffer.
1927If UNMARK, remove the mark instead."
1928 (interactive "P")
1929 (gnus-group-mark-region unmark (point-min) (point-max)))
1930
1931(defun gnus-group-mark-regexp (regexp)
1932 "Mark all groups that match some regexp."
1933 (interactive "sMark (regexp): ")
1934 (let ((alist (cdr gnus-newsrc-alist))
1935 group)
23f87bed
MB		 1936 (save-excursion
1937 (while alist
1938 (when (string-match regexp (setq group (gnus-info-group (pop alist))))
1939 (gnus-group-jump-to-group group)
1940 (gnus-group-set-mark group)))))
eec82323
LMI		 1941 (gnus-group-position-point))
1942
16409b0b 1943(defun gnus-group-remove-mark (group &optional test-marked)
eec82323
LMI		 1944 "Remove the process mark from GROUP and move point there.
1945Return nil if the group isn't displayed."
16409b0b 1946 (if (gnus-group-goto-group group nil test-marked)
eec82323
LMI		 1947 (save-excursion
1948 (gnus-group-mark-group 1 'unmark t)
1949 t)
1950 (setq gnus-group-marked
1951 (delete group gnus-group-marked))
1952 nil))
1953
1954(defun gnus-group-set-mark (group)
1955 "Set the process mark on GROUP."
1956 (if (gnus-group-goto-group group)
1957 (save-excursion
1958 (gnus-group-mark-group 1 nil t))
1959 (setq gnus-group-marked (cons group (delete group gnus-group-marked)))))
1960
1961(defun gnus-group-universal-argument (arg &optional groups func)
1962 "Perform any command on all groups according to the process/prefix convention."
1963 (interactive "P")
1964 (if (eq (setq func (or func
1965 (key-binding
1966 (read-key-sequence
1967 (substitute-command-keys
1968 "\\<gnus-group-mode-map>\\[gnus-group-universal-argument]")))))
1969 'undefined)
1970 (gnus-error 1 "Undefined key")
1971 (gnus-group-iterate arg
1972 (lambda (group)
1973 (command-execute func))))
1974 (gnus-group-position-point))
1975
1976(defun gnus-group-process-prefix (n)
1977 "Return a list of groups to work on.
1978Take into consideration N (the prefix) and the list of marked groups."
1979 (cond
1980 (n
1981 (setq n (prefix-numeric-value n))
1982 ;; There is a prefix, so we return a list of the N next
1983 ;; groups.
1984 (let ((way (if (< n 0) -1 1))
1985 (n (abs n))
1986 group groups)
1987 (save-excursion
6748645f
LMI		 1988 (while (> n 0)
1989 (if (setq group (gnus-group-group-name))
1990 (push group groups))
eec82323
LMI		 1991 (setq n (1- n))
1992 (gnus-group-next-group way)))
1993 (nreverse groups)))
23f87bed 1994 ((and (gnus-region-active-p) (mark))
eec82323
LMI		 1995 ;; Work on the region between point and mark.
1996 (let ((max (max (point) (mark)))
1997 groups)
1998 (save-excursion
1999 (goto-char (min (point) (mark)))
2000 (while
2001 (and
2002 (push (gnus-group-group-name) groups)
2003 (zerop (gnus-group-next-group 1))
2004 (< (point) max)))
2005 (nreverse groups))))
2006 (gnus-group-marked
2007 ;; No prefix, but a list of marked articles.
2008 (reverse gnus-group-marked))
2009 (t
2010 ;; Neither marked articles or a prefix, so we return the
2011 ;; current group.
2012 (let ((group (gnus-group-group-name)))
2013 (and group (list group))))))
2014
6748645f
LMI		 2015;;; !!!Surely gnus-group-iterate should be a macro instead? I can't
2016;;; imagine why I went through these contortions...
2017(eval-and-compile
2018 (let ((function (make-symbol "gnus-group-iterate-function"))
2019 (window (make-symbol "gnus-group-iterate-window"))
2020 (groups (make-symbol "gnus-group-iterate-groups"))
2021 (group (make-symbol "gnus-group-iterate-group")))
2022 (eval
2023 `(defun gnus-group-iterate (arg ,function)
2024 "Iterate FUNCTION over all process/prefixed groups.
16409b0b 2025FUNCTION will be called with the group name as the parameter
eec82323 2026and with point over the group in question."
6748645f
LMI		 2027 (let ((,groups (gnus-group-process-prefix arg))
2028 (,window (selected-window))
2029 ,group)
16409b0b
GM		 2030 (while ,groups
2031 (setq ,group (car ,groups)
2032 ,groups (cdr ,groups))
6748645f
LMI		 2033 (select-window ,window)
2034 (gnus-group-remove-mark ,group)
2035 (save-selected-window
2036 (save-excursion
2037 (funcall ,function ,group)))))))))
eec82323
LMI		 2038
2039(put 'gnus-group-iterate 'lisp-indent-function 1)
2040
2041;; Selecting groups.
2042
6748645f 2043(defun gnus-group-read-group (&optional all no-article group select-articles)
eec82323
LMI		 2044 "Read news in this newsgroup.
2045If the prefix argument ALL is non-nil, already read articles become
52bec650
MB		 2046readable.
2047
2048If ALL is a positive number, fetch this number of the latest
2049articles in the group. If ALL is a negative number, fetch this
2050number of the earliest articles in the group.
2051
2052If the optional argument NO-ARTICLE is non-nil, no article will
2053be auto-selected upon group entry. If GROUP is non-nil, fetch
2054that group."
eec82323
LMI		 2055 (interactive "P")
2056 (let ((no-display (eq all 0))
2057 (group (or group (gnus-group-group-name)))
2058 number active marked entry)
2059 (when (eq all 0)
2060 (setq all nil))
2061 (unless group
2062 (error "No group on current line"))
2063 (setq marked (gnus-info-marks
01c52d31 2064 (nth 2 (setq entry (gnus-group-entry group)))))
eec82323
LMI		 2065 ;; This group might be a dead group. In that case we have to get
2066 ;; the number of unread articles from `gnus-active-hashtb'.
2067 (setq number
2068 (cond ((numberp all) all)
2069 (entry (car entry))
2070 ((setq active (gnus-active group))
2071 (- (1+ (cdr active)) (car active)))))
2072 (gnus-summary-read-group
2073 group (or all (and (numberp number)
2074 (zerop (+ number (gnus-range-length
2075 (cdr (assq 'tick marked)))
2076 (gnus-range-length
2077 (cdr (assq 'dormant marked)))))))
6748645f 2078 no-article nil no-display nil select-articles)))
eec82323
LMI		 2079
2080(defun gnus-group-select-group (&optional all)
2081 "Select this newsgroup.
2082No article is selected automatically.
23f87bed 2083If the group is opened, just switch the summary buffer.
eec82323 2084If ALL is non-nil, already read articles become readable.
827dc73d
MB		 2085If ALL is a positive number, fetch this number of the latest
2086articles in the group.
2087If ALL is a negative number, fetch this number of the earliest
2088articles in the group."
eec82323 2089 (interactive "P")
23f87bed
MB		 2090 (when (and (eobp) (not (gnus-group-group-name)))
2091 (forward-line -1))
eec82323
LMI		 2092 (gnus-group-read-group all t))
2093
01c52d31
MB		 2094(defun gnus-group-quick-select-group (&optional all group)
2095 "Select the GROUP \"quickly\".
2096This means that no highlighting or scoring will be performed. If
2097ALL (the prefix argument) is 0, don't even generate the summary
2098buffer. If GROUP is nil, use current group.
6748645f
LMI		 2099
2100This might be useful if you want to toggle threading
2101before entering the group."
eec82323
LMI		 2102 (interactive "P")
2103 (require 'gnus-score)
2104 (let (gnus-visual
2105 gnus-score-find-score-files-function
2106 gnus-home-score-file
2107 gnus-apply-kill-hook
2108 gnus-summary-expunge-below)
01c52d31 2109 (gnus-group-read-group all t group)))
eec82323
LMI		 2110
2111(defun gnus-group-visible-select-group (&optional all)
2112 "Select the current group without hiding any articles."
2113 (interactive "P")
2114 (let ((gnus-inhibit-limiting t))
2115 (gnus-group-read-group all t)))
2116
2117(defun gnus-group-select-group-ephemerally ()
2118 "Select the current group without doing any processing whatsoever.
2119You will actually be entered into a group that's a copy of
2120the current group; no changes you make while in this group will
2121be permanent."
2122 (interactive)
2123 (require 'gnus-score)
2124 (let* (gnus-visual
2125 gnus-score-find-score-files-function gnus-apply-kill-hook
2126 gnus-summary-expunge-below gnus-show-threads gnus-suppress-duplicates
2127 gnus-summary-mode-hook gnus-select-group-hook
2128 (group (gnus-group-group-name))
2129 (method (gnus-find-method-for-group group)))
eec82323
LMI		 2130 (gnus-group-read-ephemeral-group
2131 (gnus-group-prefixed-name group method) method)))
2132
01c52d31
MB		 2133(defun gnus-group-name-at-point ()
2134 "Return a group name from around point if it exists, or nil."
2135 (if (eq major-mode 'gnus-group-mode)
2136 (let ((group (gnus-group-group-name)))
2137 (when group
2138 (gnus-group-decoded-name group)))
2139 (let ((regexp "[][\C-@-\t\v-*,/:-@\\^`{-\C-?]*\
2140\\(nn[a-z]+\\(?:\\+[^][\C-@-*,/:-@\\^`{-\C-?]+\\)?:\
2141\[^][\C-@-*,./:-@\\^`{-\C-?]+\\(?:\\.[^][\C-@-*,./:-@\\^`{-\C-?]+\\)*\
2142\\|[^][\C-@-*,./:-@\\^`{-\C-?]+\\(?:\\.[^][\C-@-*,./:-@\\^`{-\C-?]+\\)+\\)")
2143 (start (point))
2144 (case-fold-search nil))
2145 (prog1
2146 (if (or (and (not (or (eobp)
2147 (looking-at "[][\C-@-*,/;-@\\^`{-\C-?]")))
2148 (prog1 t
2149 (skip-chars-backward "^][\C-@-\t\v-*,/;-@\\^`{-\C-?"
2150 (point-at-bol))))
2151 (and (looking-at "[][\C-@-\t\v-*,/;-@\\^`{-\C-?]*$")
2152 (prog1 t
2153 (skip-chars-backward "][\C-@-\t\v-*,/;-@\\^`{-\C-?")
2154 (skip-chars-backward "^][\C-@-\t\v-*,/;-@\\^`{-\C-?"
2155 (point-at-bol))))
2156 (string-match "\\`[][\C-@-\t\v-*,/;-@\\^`{-\C-?]*\\'"
2157 (buffer-substring (point-at-bol) (point))))
2158 (when (looking-at regexp)
2159 (match-string 1))
2160 (let (group distance)
2161 (when (looking-at regexp)
2162 (setq group (match-string 1)
2163 distance (- (match-beginning 1) (match-beginning 0))))
2164 (skip-chars-backward "][\C-@-\t\v-*,/;-@\\^`{-\C-?")
2165 (skip-chars-backward "^][\C-@-\t\v-*,/;-@\\^`{-\C-?"
2166 (point-at-bol))
2167 (if (looking-at regexp)
2168 (if (and group (<= distance (- start (match-end 0))))
2169 group
2170 (match-string 1))
2171 group)))
2172 (goto-char start)))))
2173
2174(defun gnus-group-completing-read (prompt &optional collection predicate
2175 require-match initial-input hist def
2176 &rest args)
2177 "Read a group name with completion. Non-ASCII group names are allowed.
2178The arguments are the same as `completing-read' except that COLLECTION
2179and HIST default to `gnus-active-hashtb' and `gnus-group-history'
2180respectively if they are omitted."
0be02d8a
KY		 2181 (let ((completion-styles (and (boundp 'completion-styles)
2182 completion-styles))
f5ec697d
KY		 2183 group)
2184 (push 'substring completion-styles)
01c52d31
MB		 2185 (mapatoms (lambda (symbol)
2186 (setq group (symbol-name symbol))
2187 (set (intern (if (string-match "[^\000-\177]" group)
2188 (gnus-group-decoded-name group)
2189 group)
2190 collection)
2191 group))
2192 (prog1
2193 (or collection
2194 (setq collection (or gnus-active-hashtb [0])))
2195 (setq collection (gnus-make-hashtable (length collection)))))
2196 (setq group (apply 'completing-read prompt collection predicate
2197 require-match initial-input
2198 (or hist 'gnus-group-history)
2199 def args))
2200 (or (prog1
2201 (symbol-value (intern-soft group collection))
2202 (setq collection nil))
2203 (mm-encode-coding-string group (gnus-group-name-charset nil group)))))
2204
eec82323 2205;;;###autoload
23f87bed 2206(defun gnus-fetch-group (group &optional articles)
eec82323 2207 "Start Gnus if necessary and enter GROUP.
01c52d31 2208If ARTICLES, display those articles.
eec82323 2209Returns whether the fetching was successful or not."
01c52d31
MB		 2210 (interactive (list (gnus-group-completing-read "Group name: "
2211 nil nil nil
2212 (gnus-group-name-at-point))))
2213 (unless (gnus-alive-p)
6748645f 2214 (gnus-no-server))
01c52d31 2215 (gnus-group-read-group (if articles nil t) nil group articles))
eec82323 2216
6748645f
LMI		 2217;;;###autoload
2218(defun gnus-fetch-group-other-frame (group)
2219 "Pop up a frame and enter GROUP."
2220 (interactive "P")
2221 (let ((window (get-buffer-window gnus-group-buffer)))
2222 (cond (window
2223 (select-frame (window-frame window)))
2224 ((= (length (frame-list)) 1)
2225 (select-frame (make-frame)))
2226 (t
2227 (other-frame 1))))
2228 (gnus-fetch-group group))
2229
eec82323
LMI		 2230(defvar gnus-ephemeral-group-server 0)
2231
23f87bed
MB		 2232(defcustom gnus-large-ephemeral-newsgroup 200
2233 "The number of articles which indicates a large ephemeral newsgroup.
2234Same as `gnus-large-newsgroup', but only used for ephemeral newsgroups.
2235
2236If the number of articles in a newsgroup is greater than this value,
2237confirmation is required for selecting the newsgroup. If it is nil, no
2238confirmation is required."
bf247b6e 2239 :version "22.1"
23f87bed
MB		 2240 :group 'gnus-group-select
2241 :type '(choice (const :tag "No limit" nil)
2242 integer))
2243
2244(defcustom gnus-fetch-old-ephemeral-headers nil
2245 "Same as `gnus-fetch-old-headers', but only used for ephemeral newsgroups."
bf247b6e 2246 :version "22.1"
23f87bed
MB		 2247 :group 'gnus-thread
2248 :type '(choice (const :tag "off" nil)
2249 (const some)
2250 number
2251 (sexp :menu-tag "other" t)))
2252
eec82323
LMI		 2253;; Enter a group that is not in the group buffer. Non-nil is returned
2254;; if selection was successful.
2255(defun gnus-group-read-ephemeral-group (group method &optional activate
6748645f 2256 quit-config request-only
23f87bed 2257 select-articles
10ace8ea
MB		 2258 parameters
2259 number)
eec82323
LMI		 2260 "Read GROUP from METHOD as an ephemeral group.
2261If ACTIVATE, request the group first.
2262If QUIT-CONFIG, use that window configuration when exiting from the
2263ephemeral group.
2264If REQUEST-ONLY, don't actually read the group; just request it.
6748645f 2265If SELECT-ARTICLES, only select those articles.
23f87bed 2266If PARAMETERS, use those as the group parameters.
10ace8ea 2267If NUMBER, fetch this number of articles.
eec82323 2268
16409b0b 2269Return the name of the group if selection was successful."
23f87bed
MB		 2270 (interactive
2271 (list
2272 ;; (gnus-read-group "Group name: ")
01c52d31 2273 (gnus-group-completing-read "Group: ")
23f87bed 2274 (gnus-read-method "From method: ")))
eec82323 2275 ;; Transform the select method into a unique server.
6748645f
LMI		 2276 (when (stringp method)
2277 (setq method (gnus-server-to-method method)))
2278 (setq method
2279 `(,(car method) ,(concat (cadr method) "-ephemeral")
2280 (,(intern (format "%s-address" (car method))) ,(cadr method))
2281 ,@(cddr method)))
eec82323 2282 (let ((group (if (gnus-group-foreign-p group) group
23f87bed
MB		 2283 (gnus-group-prefixed-name (gnus-group-real-name group)
2284 method))))
eec82323
LMI		 2285 (gnus-sethash
2286 group
2287 `(-1 nil (,group
2288 ,gnus-level-default-subscribed nil nil ,method
23f87bed
MB		 2289 ,(cons
2290 (if quit-config
2291 (cons 'quit-config quit-config)
2292 (cons 'quit-config
2293 (cons gnus-summary-buffer
2294 gnus-current-window-configuration)))
2295 parameters)))
eec82323 2296 gnus-newsrc-hashtb)
6748645f 2297 (push method gnus-ephemeral-servers)
eec82323
LMI		 2298 (set-buffer gnus-group-buffer)
2299 (unless (gnus-check-server method)
2300 (error "Unable to contact server: %s" (gnus-status-message method)))
2301 (when activate
2302 (gnus-activate-group group 'scan)
2303 (unless (gnus-request-group group)
2304 (error "Couldn't request group: %s"
2305 (nnheader-get-report (car method)))))
2306 (if request-only
2307 group
2308 (condition-case ()
23f87bed
MB		 2309 (when (let ((gnus-large-newsgroup gnus-large-ephemeral-newsgroup)
2310 (gnus-fetch-old-headers
2311 gnus-fetch-old-ephemeral-headers))
10ace8ea 2312 (gnus-group-read-group (or number t) t group select-articles))
eec82323
LMI		 2313 group)
2314 ;;(error nil)
2491844d
DL		 2315 (quit
2316 (message "Quit reading the ephemeral group")
2317 nil)))))
eec82323 2318
9b3ebcb6 2319(defcustom gnus-gmane-group-download-format
95838435
MB		 2320 "http://download.gmane.org/%s/%s/%s"
2321 "URL for downloading mbox files.
2322It must contain three \"%s\". They correspond to the group, the
2323minimal and maximal article numbers, respectively."
2324 :group 'gnus-group-foreign
330f707b 2325 :version "23.1" ;; No Gnus
95838435 2326 :type 'string)
d82cf70b 2327
95838435
MB		 2328(autoload 'url-insert-file-contents "url-handlers")
2329;; FIXME:
2330;; - Add documentation, menu, key bindings, ...
d82cf70b 2331
9b3ebcb6 2332(defun gnus-read-ephemeral-gmane-group (group start &optional range)
d82cf70b 2333 "Read articles from Gmane group GROUP as an ephemeral group.
95838435
MB		 2334START is the first article. RANGE specifies how many articles
2335are fetched. The articles are downloaded via HTTP using the URL
9b3ebcb6 2336specified by `gnus-gmane-group-download-format'."
d82cf70b
MB		 2337 ;; See <http://gmane.org/export.php> for more information.
2338 (interactive
2339 (list
2340 (gnus-group-completing-read "Gmane group: ")
2341 (read-number "Start article number: ")
95838435
MB		 2342 (read-number "How many articles: ")))
2343 (unless range (setq range 500))
2344 (when (< range 1)
2345 (error "Invalid range: %s" range))
765d4319 2346 (let ((tmpfile (mm-make-temp-file
95838435
MB		 2347 (format "%s.start-%s.range-%s." group start range)))
2348 (gnus-thread-sort-functions '(gnus-thread-sort-by-number)))
d82cf70b
MB		 2349 (with-temp-file tmpfile
2350 (url-insert-file-contents
9b3ebcb6 2351 (format gnus-gmane-group-download-format
95838435 2352 group start (+ start range)))
d82cf70b
MB		 2353 (write-region (point-min) (point-max) tmpfile)
2354 (gnus-group-read-ephemeral-group
95838435 2355 (format "%s.start-%s.range-%s" group start range)
d82cf70b 2356 `(nndoc ,tmpfile
8f7abae3 2357 (nndoc-article-type mbox))))
d82cf70b
MB		 2358 (delete-file tmpfile)))
2359
9b3ebcb6 2360(defun gnus-read-ephemeral-gmane-group-url (url)
95838435
MB		 2361 "Create an ephemeral Gmane group from URL.
2362
2363Valid input formats include:
2364\"http://thread.gmane.org/gmane.foo.bar/12300/focus=12399\",
2365\"http://thread.gmane.org/gmane.foo.bar/12345/\",
2366\"http://article.gmane.org/gmane.foo.bar/12345/\",
2367\"http://news.gmane.org/group/gmane.foo.bar/thread=12345\""
2368 ;; - Feel free to add other useful Gmane URLs here! Maybe the URLs should
2369 ;; be customizable?
2370 ;; - The URLs should be added to `gnus-button-alist'. Probably we should
2371 ;; prompt the user to decide: "View via `browse-url' or in Gnus? "
9b3ebcb6 2372 ;; (`gnus-read-ephemeral-gmane-group-url')
95838435
MB		 2373 (interactive
2374 (list (gnus-group-completing-read "Gmane URL: ")))
2375 (let (group start range)
2376 (cond
2377 ;; URLs providing `group', `start' and `range':
2378 ((string-match
2379 ;; http://thread.gmane.org/gmane.emacs.devel/86326/focus=86525
2380 "^http://thread\.gmane\.org/\\([^/]+\\)/\\([0-9]+\\)/focus=\\([0-9]+\\)$"
2381 url)
2382 (setq group (match-string 1 url)
2383 start (string-to-number (match-string 2 url))
2384 ;; Ensure that `range' is large enough to ensure focus article is
2385 ;; included.
2386 range (- (string-to-number (match-string 3 url))
2387 start -1)))
2388 ;; URLs providing `group' and `start':
2389 ((or (string-match
2390 ;; http://article.gmane.org/gmane.comp.gnu.make.bugs/3584
8f7abae3 2391 "^http://\\(?:thread\\|article\\|permalink\\)\.gmane\.org/\\([^/]+\\)/\\([0-9]+\\)"
95838435
MB		 2392 url)
2393 (string-match
834ee131 2394 ;; Don't advertise these in the doc string yet:
95838435
MB		 2395 "^\\(?:nntp\\|news\\)://news\.gmane\.org/\\([^/]+\\)/\\([0-9]+\\)"
2396 url)
2397 (string-match
2398 ;; http://news.gmane.org/group/gmane.emacs.gnus.general/thread=65099/force_load=t
2399 "^http://news\.gmane\.org/group/\\([^/]+\\)/thread=\\([0-9]+\\)"
2400 url))
2401 (setq group (match-string 1 url)
2402 start (string-to-number (match-string 2 url))))
2403 (t
2404 (error "Can't parse URL %s" url)))
9b3ebcb6
MB		 2405 (gnus-read-ephemeral-gmane-group group start range)))
2406
2407(defcustom gnus-bug-group-download-format-alist
a0db2cdd 2408 '((emacs . "http://debbugs.gnu.org/%s;mbox=yes")
9b3ebcb6
MB		 2409 (debian
2410 . "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=%s&mbox=yes"))
2411 "Alist of symbols for bug trackers and the corresponding URL format string.
2412The URL format string must contain a single \"%s\", specifying
2413the bug number, and browsing the URL must return mbox output."
2414 :group 'gnus-group-foreign
a0db2cdd 2415 :version "23.2" ;; No Gnus
9b3ebcb6
MB		 2416 :type '(repeat (cons (symbol) (string :tag "URL format string"))))
2417
2418(defun gnus-read-ephemeral-bug-group (number mbox-url)
2419 "Browse bug NUMBER as ephemeral group."
2420 (interactive (list (read-string "Enter bug number: "
2421 (thing-at-point 'word) nil)
2422 ;; FIXME: Add completing-read from
2423 ;; `gnus-emacs-bug-group-download-format' ...
2424 (cdr (assoc 'emacs gnus-bug-group-download-format-alist))))
2425 (when (stringp number)
2426 (setq number (string-to-number number)))
765d4319 2427 (let ((tmpfile (mm-make-temp-file "gnus-temp-group-")))
9b3ebcb6
MB		 2428 (with-temp-file tmpfile
2429 (url-insert-file-contents (format mbox-url number))
2430 (write-region (point-min) (point-max) tmpfile)
2431 (gnus-group-read-ephemeral-group
2432 "gnus-read-ephemeral-bug"
2433 `(nndoc ,tmpfile
2434 (nndoc-article-type mbox))))
2435 (delete-file tmpfile)))
2436
2437(defun gnus-read-ephemeral-debian-bug-group (number)
2438 "Browse Debian bug NUMBER as ephemeral group."
2439 (interactive (list (read-string "Enter bug number: "
2440 (thing-at-point 'word) nil)))
2441 (gnus-read-ephemeral-bug-group
2442 number
2443 (cdr (assoc 'debian gnus-bug-group-download-format-alist))))
2444
2445(defun gnus-read-ephemeral-emacs-bug-group (number)
2446 "Browse Emacs bug NUMBER as ephemeral group."
2447 (interactive (list (read-string "Enter bug number: "
2448 (thing-at-point 'word) nil)))
2449 (gnus-read-ephemeral-bug-group
2450 number
2451 (cdr (assoc 'emacs gnus-bug-group-download-format-alist))))
95838435 2452
01c52d31
MB		 2453(defun gnus-group-jump-to-group (group &optional prompt)
2454 "Jump to newsgroup GROUP.
2455
2456If PROMPT (the prefix) is a number, use the prompt specified in
2457`gnus-group-jump-to-group-prompt'."
eec82323 2458 (interactive
01c52d31
MB		 2459 (list (gnus-group-completing-read
2460 "Group: " nil nil (gnus-read-active-file-p)
2461 (if current-prefix-arg
2462 (cdr (assq current-prefix-arg gnus-group-jump-to-group-prompt))
2463 (or (and (stringp gnus-group-jump-to-group-prompt)
2464 gnus-group-jump-to-group-prompt)
2465 (let ((p (cdr (assq 0 gnus-group-jump-to-group-prompt))))
2466 (and (stringp p) p)))))))
eec82323
LMI		 2467
2468 (when (equal group "")
2469 (error "Empty group name"))
2470
2471 (unless (gnus-ephemeral-group-p group)
2472 ;; Either go to the line in the group buffer...
2473 (unless (gnus-group-goto-group group)
2474 ;; ... or insert the line.
2475 (gnus-group-update-group group)
2476 (gnus-group-goto-group group)))
2477 ;; Adjust cursor point.
2478 (gnus-group-position-point))
2479
16409b0b 2480(defun gnus-group-goto-group (group &optional far test-marked)
eec82323 2481 "Goto to newsgroup GROUP.
16409b0b
GM		 2482If FAR, it is likely that the group is not on the current line.
2483If TEST-MARKED, the line must be marked."
eec82323 2484 (when group
16409b0b
GM		 2485 (beginning-of-line)
2486 (cond
2487 ;; It's quite likely that we are on the right line, so
2488 ;; we check the current line first.
2489 ((and (not far)
2490 (eq (get-text-property (point) 'gnus-group)
2491 (gnus-intern-safe group gnus-active-hashtb))
2492 (or (not test-marked) (gnus-group-mark-line-p)))
2493 (point))
2494 ;; Previous and next line are also likely, so we check them as well.
2495 ((and (not far)
2496 (save-excursion
2497 (forward-line -1)
2498 (and (eq (get-text-property (point) 'gnus-group)
2499 (gnus-intern-safe group gnus-active-hashtb))
2500 (or (not test-marked) (gnus-group-mark-line-p)))))
2501 (forward-line -1)
2502 (point))
2503 ((and (not far)
2504 (save-excursion
2505 (forward-line 1)
2506 (and (eq (get-text-property (point) 'gnus-group)
2507 (gnus-intern-safe group gnus-active-hashtb))
2508 (or (not test-marked) (gnus-group-mark-line-p)))))
2509 (forward-line 1)
2510 (point))
2511 (test-marked
2512 (goto-char (point-min))
2513 (let (found)
a1506d29 2514 (while (and (not found)
16409b0b
GM		 2515 (gnus-goto-char
2516 (text-property-any
2517 (point) (point-max)
a1506d29 2518 'gnus-group
16409b0b
GM		 2519 (gnus-intern-safe group gnus-active-hashtb))))
2520 (if (gnus-group-mark-line-p)
2521 (setq found t)
2522 (forward-line 1)))
2523 found))
2524 (t
2525 ;; Search through the entire buffer.
2526 (gnus-goto-char
2527 (text-property-any
2528 (point-min) (point-max)
2529 'gnus-group (gnus-intern-safe group gnus-active-hashtb)))))))
eec82323
LMI		 2530
2531(defun gnus-group-next-group (n &optional silent)
2532 "Go to next N'th newsgroup.
2533If N is negative, search backward instead.
2534Returns the difference between N and the number of skips actually
2535done."
2536 (interactive "p")
2537 (gnus-group-next-unread-group n t nil silent))
2538
2539(defun gnus-group-next-unread-group (n &optional all level silent)
2540 "Go to next N'th unread newsgroup.
2541If N is negative, search backward instead.
2542If ALL is non-nil, choose any newsgroup, unread or not.
2543If LEVEL is non-nil, choose the next group with level LEVEL, or, if no
2544such group can be found, the next group with a level higher than
2545LEVEL.
2546Returns the difference between N and the number of skips actually
2547made."
2548 (interactive "p")
2549 (let ((backward (< n 0))
2550 (n (abs n)))
2551 (while (and (> n 0)
2552 (gnus-group-search-forward
2553 backward (or (not gnus-group-goto-unread) all) level))
2554 (setq n (1- n)))
2555 (when (and (/= 0 n)
2556 (not silent))
2557 (gnus-message 7 "No more%s newsgroups%s" (if all "" " unread")
2558 (if level " on this level or higher" "")))
2559 n))
2560
2561(defun gnus-group-prev-group (n)
2562 "Go to previous N'th newsgroup.
2563Returns the difference between N and the number of skips actually
2564done."
2565 (interactive "p")
2566 (gnus-group-next-unread-group (- n) t))
2567
2568(defun gnus-group-prev-unread-group (n)
2569 "Go to previous N'th unread newsgroup.
2570Returns the difference between N and the number of skips actually
2571done."
2572 (interactive "p")
2573 (gnus-group-next-unread-group (- n)))
2574
2575(defun gnus-group-next-unread-group-same-level (n)
2576 "Go to next N'th unread newsgroup on the same level.
2577If N is negative, search backward instead.
2578Returns the difference between N and the number of skips actually
2579done."
2580 (interactive "p")
2581 (gnus-group-next-unread-group n t (gnus-group-group-level))
2582 (gnus-group-position-point))
2583
2584(defun gnus-group-prev-unread-group-same-level (n)
2585 "Go to next N'th unread newsgroup on the same level.
2586Returns the difference between N and the number of skips actually
2587done."
2588 (interactive "p")
2589 (gnus-group-next-unread-group (- n) t (gnus-group-group-level))
2590 (gnus-group-position-point))
2591
2592(defun gnus-group-best-unread-group (&optional exclude-group)
2593 "Go to the group with the highest level.
2594If EXCLUDE-GROUP, do not go to that group."
2595 (interactive)
2596 (goto-char (point-min))
2597 (let ((best 100000)
2598 unread best-point)
2599 (while (not (eobp))
2600 (setq unread (get-text-property (point) 'gnus-unread))
2601 (when (and (numberp unread) (> unread 0))
2602 (when (and (get-text-property (point) 'gnus-level)
2603 (< (get-text-property (point) 'gnus-level) best)
2604 (or (not exclude-group)
2605 (not (equal exclude-group (gnus-group-group-name)))))
2606 (setq best (get-text-property (point) 'gnus-level))
2607 (setq best-point (point))))
2608 (forward-line 1))
2609 (when best-point
2610 (goto-char best-point))
23f87bed 2611 (gnus-group-position-point)
eec82323
LMI		 2612 (and best-point (gnus-group-group-name))))
2613
01c52d31
MB		 2614;; Is there something like an after-point-motion-hook?
2615;; (inhibit-point-motion-hooks?). Is there a tool-bar-update function?
2616
2617;; (defun gnus-group-menu-bar-update ()
2618;; (let* ((buf (list (with-current-buffer gnus-group-buffer
2619;; (current-buffer))))
2620;; (name (buffer-name (car buf))))
2621;; (setcdr buf
2622;; (if (> (length name) 27)
2623;; (concat (substring name 0 12)
2624;; "..."
2625;; (substring name -12))
2626;; name))
2627;; (menu-bar-update-buffers-1 buf)))
2628
2629;; (defun gnus-group-position-point ()
2630;; (gnus-goto-colon)
2631;; (gnus-group-menu-bar-update))
2632
eec82323
LMI		 2633(defun gnus-group-first-unread-group ()
2634 "Go to the first group with unread articles."
2635 (interactive)
2636 (prog1
2637 (let ((opoint (point))
2638 unread)
2639 (goto-char (point-min))
2640 (if (or (eq (setq unread (gnus-group-group-unread)) t) ; Not active.
2641 (and (numberp unread) ; Not a topic.
2642 (not (zerop unread))) ; Has unread articles.
2643 (zerop (gnus-group-next-unread-group 1))) ; Next unread group.
2644 (point) ; Success.
2645 (goto-char opoint)
2646 nil)) ; Not success.
2647 (gnus-group-position-point)))
2648
2649(defun gnus-group-enter-server-mode ()
2650 "Jump to the server buffer."
2651 (interactive)
2652 (gnus-enter-server-buffer))
2653
01c52d31
MB		 2654(defun gnus-group-make-group-simple (&optional group)
2655 "Add a new newsgroup.
2656The user will be prompted for GROUP."
2657 (interactive (list (gnus-group-completing-read "Group: ")))
2658 (gnus-group-make-group (gnus-group-real-name group)
2659 (gnus-group-server group)
2660 nil nil t))
2661
2662(defun gnus-group-make-group (name &optional method address args encoded)
eec82323
LMI		 2663 "Add a new newsgroup.
2664The user will be prompted for a NAME, for a select METHOD, and an
01c52d31
MB		 2665ADDRESS. NAME should be a human-readable string (i.e., not be encoded
2666even if it contains non-ASCII characters) unless ENCODED is non-nil."
eec82323
LMI		 2667 (interactive
2668 (list
2669 (gnus-read-group "Group name: ")
2670 (gnus-read-method "From method: ")))
2671
6748645f 2672 (when (stringp method)
16409b0b 2673 (setq method (or (gnus-server-to-method method) method)))
01c52d31
MB		 2674 (unless encoded
2675 (setq name (mm-encode-coding-string
2676 name
2677 (gnus-group-name-charset method name))))
16409b0b
GM		 2678 (let* ((meth (gnus-method-simplify
2679 (when (and method
2680 (not (gnus-server-equal method gnus-select-method)))
2681 (if address (list (intern method) address)
2682 method))))
eec82323
LMI		 2683 (nname (if method (gnus-group-prefixed-name name meth) name))
2684 backend info)
01c52d31 2685 (when (gnus-group-entry nname)
91472578 2686 (error "Group %s already exists" (gnus-group-decoded-name nname)))
eec82323
LMI		 2687 ;; Subscribe to the new group.
2688 (gnus-group-change-level
2689 (setq info (list t nname gnus-level-default-subscribed nil nil meth))
2690 gnus-level-default-subscribed gnus-level-killed
2691 (and (gnus-group-group-name)
01c52d31 2692 (gnus-group-entry (gnus-group-group-name)))
eec82323
LMI		 2693 t)
2694 ;; Make it active.
2695 (gnus-set-active nname (cons 1 0))
2696 (unless (gnus-ephemeral-group-p name)
2697 (gnus-dribble-enter
2698 (concat "(gnus-group-set-info '"
2699 (gnus-prin1-to-string (cdr info)) ")")))
2700 ;; Insert the line.
2701 (gnus-group-insert-group-line-info nname)
2702 (forward-line -1)
2703 (gnus-group-position-point)
2704
23f87bed 2705 ;; Load the back end and try to make the back end create
eec82323
LMI		 2706 ;; the group as well.
2707 (when (assoc (symbol-name (setq backend (car (gnus-server-get-method
2708 nil meth))))
2709 gnus-valid-select-methods)
2710 (require backend))
2711 (gnus-check-server meth)
2712 (when (gnus-check-backend-function 'request-create-group nname)
23f87bed
MB		 2713 (unless (gnus-request-create-group nname nil args)
2714 (error "Could not create group on server: %s"
2715 (nnheader-get-report backend))))
eec82323
LMI		 2716 t))
2717
16409b0b
GM		 2718(defun gnus-group-delete-groups (&optional arg)
2719 "Delete the current group. Only meaningful with editable groups."
2720 (interactive "P")
2721 (let ((n (length (gnus-group-process-prefix arg))))
2722 (when (gnus-yes-or-no-p
2723 (if (= n 1)
2724 "Delete this 1 group? "
2725 (format "Delete these %d groups? " n)))
2726 (gnus-group-iterate arg
2727 (lambda (group)
2728 (gnus-group-delete-group group nil t))))))
2729
2730(defun gnus-group-delete-group (group &optional force no-prompt)
2731 "Delete the current group. Only meaningful with editable groups.
eec82323
LMI		 2732If FORCE (the prefix) is non-nil, all the articles in the group will
2733be deleted. This is \"deleted\" as in \"removed forever from the face
c30ba437 2734of the Earth\". There is no undo. The user will be prompted before
23f87bed
MB		 2735doing the deletion.
2736Note that you also have to specify FORCE if you want the group to
2737be removed from the server, even when it's empty."
eec82323
LMI		 2738 (interactive
2739 (list (gnus-group-group-name)
2740 current-prefix-arg))
2741 (unless group
23f87bed 2742 (error "No group to delete"))
eec82323 2743 (unless (gnus-check-backend-function 'request-delete-group group)
23f87bed 2744 (error "This back end does not support group deletion"))
eec82323 2745 (prog1
91472578
MB		 2746 (let ((group-decoded (gnus-group-decoded-name group)))
2747 (if (and (not no-prompt)
2748 (not (gnus-yes-or-no-p
2749 (format
2750 "Do you really want to delete %s%s? "
2751 group-decoded (if force " and all its contents" "")))))
2752 () ; Whew!
2753 (gnus-message 6 "Deleting group %s..." group-decoded)
2754 (if (not (gnus-request-delete-group group force))
2755 (gnus-error 3 "Couldn't delete group %s" group-decoded)
2756 (gnus-message 6 "Deleting group %s...done" group-decoded)
2757 (gnus-group-goto-group group)
2758 (gnus-group-kill-group 1 t)
01c52d31 2759 (gnus-set-active group nil)
91472578 2760 t)))
eec82323
LMI		 2761 (gnus-group-position-point)))
2762
2763(defun gnus-group-rename-group (group new-name)
2764 "Rename group from GROUP to NEW-NAME.
2765When used interactively, GROUP is the group under point
2766and NEW-NAME will be prompted for."
2767 (interactive
4d8a28ec
MB		 2768 (let ((group (gnus-group-group-name))
2769 method new-name)
2770 (unless (gnus-check-backend-function 'request-rename-group group)
2771 (error "This back end does not support renaming groups"))
2772 (setq new-name (gnus-read-group
2773 "Rename group to: "
2774 (gnus-group-real-name (gnus-group-decoded-name group)))
2775 method (gnus-info-method (gnus-get-info group)))
2776 (list group (mm-encode-coding-string
2777 new-name
2778 (gnus-group-name-charset
2779 method
2780 (gnus-group-prefixed-name new-name method))))))
eec82323
LMI		 2781
2782 (unless (gnus-check-backend-function 'request-rename-group group)
23f87bed 2783 (error "This back end does not support renaming groups"))
eec82323
LMI		 2784 (unless group
2785 (error "No group to rename"))
2786 (when (equal (gnus-group-real-name group) new-name)
2787 (error "Can't rename to the same name"))
2788
2789 ;; We find the proper prefixed name.
2790 (setq new-name
2791 (if (gnus-group-native-p group)
2792 ;; Native group.
2793 new-name
2794 ;; Foreign group.
2795 (gnus-group-prefixed-name
2796 (gnus-group-real-name new-name)
2797 (gnus-info-method (gnus-get-info group)))))
2798
4d8a28ec
MB		 2799 (let ((decoded-group (gnus-group-decoded-name group))
2800 (decoded-new-name (gnus-group-decoded-name new-name)))
2801 (when (gnus-active new-name)
2802 (error "The group %s already exists" decoded-new-name))
2803
2804 (gnus-message 6 "Renaming group %s to %s..."
2805 decoded-group decoded-new-name)
2806 (prog1
2807 (if (progn
2808 (gnus-group-goto-group group)
2809 (not (when (< (gnus-group-group-level) gnus-level-zombie)
2810 (gnus-request-rename-group group new-name))))
2811 (gnus-error 3 "Couldn't rename group %s to %s"
2812 decoded-group decoded-new-name)
2813 ;; We rename the group internally by killing it...
2814 (gnus-group-kill-group)
2815 ;; ... changing its name ...
2816 (setcar (cdar gnus-list-of-killed-groups) new-name)
2817 ;; ... and then yanking it. Magic!
2818 (gnus-group-yank-group)
2819 (gnus-set-active new-name (gnus-active group))
2820 (gnus-message 6 "Renaming group %s to %s...done"
2821 decoded-group decoded-new-name)
2822 new-name)
2823 (setq gnus-killed-list (delete group gnus-killed-list))
2824 (gnus-set-active group nil)
2825 (gnus-dribble-touch)
2826 (gnus-group-position-point))))
eec82323
LMI		 2827
2828(defun gnus-group-edit-group (group &optional part)
2829 "Edit the group on the current line."
2830 (interactive (list (gnus-group-group-name)))
2831 (let ((part (or part 'info))
2832 info)
2833 (unless group
2834 (error "No group on current line"))
2835 (unless (setq info (gnus-get-info group))
2836 (error "Killed group; can't be edited"))
2837 (ignore-errors
2838 (gnus-close-group group))
2839 (gnus-edit-form
2840 ;; Find the proper form to edit.
2841 (cond ((eq part 'method)
2842 (or (gnus-info-method info) "native"))
2843 ((eq part 'params)
2844 (gnus-info-params info))
2845 (t info))
2846 ;; The proper documentation.
2847 (format
2848 "Editing the %s for `%s'."
2849 (cond
2850 ((eq part 'method) "select method")
2851 ((eq part 'params) "group parameters")
2852 (t "group info"))
16409b0b 2853 (gnus-group-decoded-name group))
eec82323 2854 `(lambda (form)
23f87bed
MB		 2855 (gnus-group-edit-group-done ',part ,group form)))
2856 (local-set-key
2857 "\C-c\C-i"
2858 (gnus-create-info-command
2859 (cond
2860 ((eq part 'method)
2861 "(gnus)Select Methods")
2862 ((eq part 'params)
2863 "(gnus)Group Parameters")
2864 (t
2865 "(gnus)Group Info"))))))
eec82323
LMI		 2866
2867(defun gnus-group-edit-group-method (group)
2868 "Edit the select method of GROUP."
2869 (interactive (list (gnus-group-group-name)))
2870 (gnus-group-edit-group group 'method))
2871
2872(defun gnus-group-edit-group-parameters (group)
2873 "Edit the group parameters of GROUP."
2874 (interactive (list (gnus-group-group-name)))
2875 (gnus-group-edit-group group 'params))
2876
2877(defun gnus-group-edit-group-done (part group form)
2878 "Update variables."
2879 (let* ((method (cond ((eq part 'info) (nth 4 form))
2880 ((eq part 'method) form)
2881 (t nil)))
2882 (info (cond ((eq part 'info) form)
2883 ((eq part 'method) (gnus-get-info group))
2884 (t nil)))
2885 (new-group (if info
2886 (if (or (not method)
2887 (gnus-server-equal
2888 gnus-select-method method))
2889 (gnus-group-real-name (car info))
2890 (gnus-group-prefixed-name
2891 (gnus-group-real-name (car info)) method))
2892 nil)))
2893 (when (and new-group
2894 (not (equal new-group group)))
2895 (when (gnus-group-goto-group group)
2896 (gnus-group-kill-group 1))
2897 (gnus-activate-group new-group))
2898 ;; Set the info.
2899 (if (not (and info new-group))
2900 (gnus-group-set-info form (or new-group group) part)
2901 (setq info (gnus-copy-sequence info))
2902 (setcar info new-group)
2903 (unless (gnus-server-equal method "native")
2904 (unless (nthcdr 3 info)
2905 (nconc info (list nil nil)))
2906 (unless (nthcdr 4 info)
2907 (nconc info (list nil)))
2908 (gnus-info-set-method info method))
2909 (gnus-group-set-info info))
2910 (gnus-group-update-group (or new-group group))
2911 (gnus-group-position-point)))
2912
2913(defun gnus-group-make-useful-group (group method)
6748645f 2914 "Create one of the groups described in `gnus-useful-groups'."
eec82323
LMI		 2915 (interactive
2916 (let ((entry (assoc (completing-read "Create group: " gnus-useful-groups
2917 nil t)
2918 gnus-useful-groups)))
1ae03cd5
KY		 2919 (list (cadr entry)
2920 ;; Don't use `caddr' here since macros within the `interactive'
2921 ;; form won't be expanded.
2922 (car (cddr entry)))))
eec82323
LMI		 2923 (setq method (gnus-copy-sequence method))
2924 (let (entry)
2925 (while (setq entry (memq (assq 'eval method) method))
2926 (setcar entry (eval (cadar entry)))))
2927 (gnus-group-make-group group method))
2928
23f87bed
MB		 2929(defun gnus-group-make-help-group (&optional noerror)
2930 "Create the Gnus documentation group.
2931Optional argument NOERROR modifies the behavior of this function when the
2932group already exists:
2933- if not given, and error is signaled,
2934- if t, stay silent,
2935- if anything else, just print a message."
eec82323
LMI		 2936 (interactive)
2937 (let ((name (gnus-group-prefixed-name "gnus-help" '(nndoc "gnus-help")))
6748645f 2938 (file (nnheader-find-etc-directory "gnus-tut.txt" t)))
01c52d31 2939 (if (gnus-group-entry name)
23f87bed
MB		 2940 (cond ((eq noerror nil)
2941 (error "Documentation group already exists"))
2942 ((eq noerror t)
2943 ;; stay silent
2944 )
2945 (t
2946 (gnus-message 1 "Documentation group already exists")))
2947 ;; else:
2948 (if (not file)
2949 (gnus-message 1 "Couldn't find doc group")
2950 (gnus-group-make-group
2951 (gnus-group-real-name name)
2952 (list 'nndoc "gnus-help"
2953 (list 'nndoc-address file)
2954 (list 'nndoc-article-type 'mbox))))
2955 ))
eec82323
LMI		 2956 (gnus-group-position-point))
2957
2958(defun gnus-group-make-doc-group (file type)
270a576a
MB		 2959 "Create a group that uses a single file as the source.
2960
2961If called with a prefix argument, ask for the file type."
eec82323
LMI		 2962 (interactive
2963 (list (read-file-name "File name: ")
2964 (and current-prefix-arg 'ask)))
2965 (when (eq type 'ask)
2966 (let ((err "")
2967 char found)
2968 (while (not found)
2969 (message
270a576a 2970 "%sFile type (mbox, babyl, digest, forward, mmdf, guess) [m, b, d, f, a, g]: "
eec82323
LMI		 2971 err)
2972 (setq found (cond ((= (setq char (read-char)) ?m) 'mbox)
2973 ((= char ?b) 'babyl)
2974 ((= char ?d) 'digest)
2975 ((= char ?f) 'forward)
2976 ((= char ?a) 'mmfd)
16409b0b 2977 ((= char ?g) 'guess)
eec82323
LMI		 2978 (t (setq err (format "%c unknown. " char))
2979 nil))))
2980 (setq type found)))
c86d4601 2981 (setq file (expand-file-name file))
01c52d31
MB		 2982 (let* ((name (gnus-generate-new-group-name
2983 (gnus-group-prefixed-name
2984 (file-name-nondirectory file) '(nndoc ""))))
2985 (method (list 'nndoc file
2986 (list 'nndoc-address file)
2987 (list 'nndoc-article-type (or type 'guess))))
2988 (coding (gnus-group-name-charset method name)))
2989 (setcar (cdr method) (mm-encode-coding-string file coding))
eec82323 2990 (gnus-group-make-group
01c52d31
MB		 2991 (mm-encode-coding-string (gnus-group-real-name name) coding)
2992 method nil nil t)))
eec82323
LMI		 2993
2994(defvar nnweb-type-definition)
2995(defvar gnus-group-web-type-history nil)
2996(defvar gnus-group-web-search-history nil)
2997(defun gnus-group-make-web-group (&optional solid)
2998 "Create an ephemeral nnweb group.
2999If SOLID (the prefix), create a solid group."
3000 (interactive "P")
3001 (require 'nnweb)
3002 (let* ((group
3003 (if solid (gnus-read-group "Group name: ")
3004 (message-unique-id)))
a8151ef7
LMI		 3005 (default-type (or (car gnus-group-web-type-history)
3006 (symbol-name (caar nnweb-type-definition))))
eec82323 3007 (type
a8151ef7
LMI		 3008 (gnus-string-or
3009 (completing-read
3010 (format "Search engine type (default %s): " default-type)
3011 (mapcar (lambda (elem) (list (symbol-name (car elem))))
3012 nnweb-type-definition)
3013 nil t nil 'gnus-group-web-type-history)
3014 default-type))
eec82323
LMI		 3015 (search
3016 (read-string
3017 "Search string: "
3018 (cons (or (car gnus-group-web-search-history) "") 0)
3019 'gnus-group-web-search-history))
3020 (method
3021 `(nnweb ,group (nnweb-search ,search)
3022 (nnweb-type ,(intern type))
3023 (nnweb-ephemeral-p t))))
3024 (if solid
23f87bed
MB		 3025 (progn
3026 (gnus-pull 'nnweb-ephemeral-p method)
3027 (gnus-group-make-group group method))
eec82323
LMI		 3028 (gnus-group-read-ephemeral-group
3029 group method t
3030 (cons (current-buffer)
3031 (if (eq major-mode 'gnus-summary-mode) 'summary 'group))))))
3032
9efa445f 3033(defvar nnrss-group-alist)
23f87bed 3034(eval-when-compile
23f87bed
MB		 3035 (defun nnrss-discover-feed (arg))
3036 (defun nnrss-save-server-data (arg)))
3037(defun gnus-group-make-rss-group (&optional url)
3038 "Given a URL, discover if there is an RSS feed.
3039If there is, use Gnus to create an nnrss group"
3040 (interactive)
3041 (require 'nnrss)
3042 (if (not url)
3043 (setq url (read-from-minibuffer "URL to Search for RSS: ")))
3044 (let ((feedinfo (nnrss-discover-feed url)))
3045 (if feedinfo
01c52d31
MB		 3046 (let* ((title (gnus-newsgroup-savable-name
3047 (read-from-minibuffer "Title: "
3048 (gnus-newsgroup-savable-name
ee5a613e
KY		 3049 (mapconcat
3050 'identity
3051 (split-string
3052 (or (cdr (assoc 'title
3053 feedinfo))
3054 ""))
3055 " ")))))
01c52d31 3056 (desc (read-from-minibuffer "Description: "
ee5a613e
KY		 3057 (mapconcat
3058 'identity
3059 (split-string
3060 (or (cdr (assoc 'description
3061 feedinfo))
3062 ""))
3063 " ")))
01c52d31
MB		 3064 (href (cdr (assoc 'href feedinfo)))
3065 (coding (gnus-group-name-charset '(nnrss "") title)))
3066 (when coding
91472578
MB		 3067 ;; Unify non-ASCII text.
3068 (setq title (mm-decode-coding-string
01c52d31
MB		 3069 (mm-encode-coding-string title coding)
3070 coding)))
3071 (gnus-group-make-group title '(nnrss ""))
91472578 3072 (push (list title href desc) nnrss-group-alist)
23f87bed
MB		 3073 (nnrss-save-server-data nil))
3074 (error "No feeds found for %s" url))))
3075
eec82323
LMI		 3076(defun gnus-group-make-archive-group (&optional all)
3077 "Create the (ding) Gnus archive group of the most recent articles.
3078Given a prefix, create a full group."
3079 (interactive "P")
3080 (let ((group (gnus-group-prefixed-name
3081 (if all "ding.archives" "ding.recent") '(nndir ""))))
01c52d31 3082 (when (gnus-group-entry group)
eec82323
LMI		 3083 (error "Archive group already exists"))
3084 (gnus-group-make-group
3085 (gnus-group-real-name group)
3086 (list 'nndir (if all "hpc" "edu")
3087 (list 'nndir-directory
3088 (if all gnus-group-archive-directory
3089 gnus-group-recent-archive-directory))))
3090 (gnus-group-add-parameter group (cons 'to-address "ding@gnus.org"))))
3091
3092(defun gnus-group-make-directory-group (dir)
3093 "Create an nndir group.
3094The user will be prompted for a directory. The contents of this
c30ba437 3095directory will be used as a newsgroup. The directory should contain
eec82323
LMI		 3096mail messages or news articles in files that have numeric names."
3097 (interactive
3098 (list (read-file-name "Create group from directory: ")))
3099 (unless (file-exists-p dir)
3100 (error "No such directory"))
3101 (unless (file-directory-p dir)
3102 (error "Not a directory"))
3103 (let ((ext "")
3104 (i 0)
3105 group)
01c52d31 3106 (while (or (not group) (gnus-group-entry group))
eec82323
LMI		 3107 (setq group
3108 (gnus-group-prefixed-name
c6e7b580 3109 (expand-file-name ext dir)
eec82323
LMI		 3110 '(nndir "")))
3111 (setq ext (format "<%d>" (setq i (1+ i)))))
3112 (gnus-group-make-group
3113 (gnus-group-real-name group)
3114 (list 'nndir (gnus-group-real-name group) (list 'nndir-directory dir)))))
3115
eec82323
LMI		 3116(defun gnus-group-add-to-virtual (n vgroup)
3117 "Add the current group to a virtual group."
3118 (interactive
3119 (list current-prefix-arg
3120 (completing-read "Add to virtual group: " gnus-newsrc-hashtb nil t
3121 "nnvirtual:")))
3122 (unless (eq (car (gnus-find-method-for-group vgroup)) 'nnvirtual)
3123 (error "%s is not an nnvirtual group" vgroup))
3124 (gnus-close-group vgroup)
3125 (let* ((groups (gnus-group-process-prefix n))
3126 (method (gnus-info-method (gnus-get-info vgroup))))
3127 (setcar (cdr method)
3128 (concat
3129 (nth 1 method) "\\|"
3130 (mapconcat
3131 (lambda (s)
3132 (gnus-group-remove-mark s)
3133 (concat "\\(^" (regexp-quote s) "$\\)"))
3134 groups "\\|"))))
3135 (gnus-group-position-point))
3136
3137(defun gnus-group-make-empty-virtual (group)
3138 "Create a new, fresh, empty virtual group."
3139 (interactive "sCreate new, empty virtual group: ")
3140 (let* ((method (list 'nnvirtual "^$"))
3141 (pgroup (gnus-group-prefixed-name group method)))
3142 ;; Check whether it exists already.
01c52d31 3143 (when (gnus-group-entry pgroup)
a8151ef7 3144 (error "Group %s already exists" pgroup))
eec82323
LMI		 3145 ;; Subscribe the new group after the group on the current line.
3146 (gnus-subscribe-group pgroup (gnus-group-group-name) method)
3147 (gnus-group-update-group pgroup)
3148 (forward-line -1)
3149 (gnus-group-position-point)))
3150
3151(defun gnus-group-enter-directory (dir)
3152 "Enter an ephemeral nneething group."
3153 (interactive "DDirectory to read: ")
3154 (let* ((method (list 'nneething dir '(nneething-read-only t)))
3155 (leaf (gnus-group-prefixed-name
3156 (file-name-nondirectory (directory-file-name dir))
3157 method))
3158 (name (gnus-generate-new-group-name leaf)))
3159 (unless (gnus-group-read-ephemeral-group
3160 name method t
3161 (cons (current-buffer)
3162 (if (eq major-mode 'gnus-summary-mode)
3163 'summary 'group)))
3164 (error "Couldn't enter %s" dir))))
3165
aea499b2
GM		 3166(autoload 'nnimap-expunge "nnimap")
3167(autoload 'nnimap-acl-get "nnimap")
3168(autoload 'nnimap-acl-edit "nnimap")
16409b0b
GM		 3169
3170(defun gnus-group-nnimap-expunge (group)
3171 "Expunge deleted articles in current nnimap GROUP."
3172 (interactive (list (gnus-group-group-name)))
3173 (let ((mailbox (gnus-group-real-name group)) method)
3174 (unless group
3175 (error "No group on current line"))
3176 (unless (gnus-get-info group)
3177 (error "Killed group; can't be edited"))
3178 (unless (eq 'nnimap (car (setq method (gnus-find-method-for-group group))))
3179 (error "%s is not an nnimap group" group))
3180 (nnimap-expunge mailbox (cadr method))))
3181
3182(defun gnus-group-nnimap-edit-acl (group)
3183 "Edit the Access Control List of current nnimap GROUP."
3184 (interactive (list (gnus-group-group-name)))
3185 (let ((mailbox (gnus-group-real-name group)) method acl)
3186 (unless group
3187 (error "No group on current line"))
3188 (unless (gnus-get-info group)
3189 (error "Killed group; can't be edited"))
3190 (unless (eq (car (setq method (gnus-find-method-for-group group))) 'nnimap)
3191 (error "%s is not an nnimap group" group))
2491844d
DL		 3192 (unless (setq acl (nnimap-acl-get mailbox (cadr method)))
3193 (error "Server does not support ACL's"))
3194 (gnus-edit-form acl (format "Editing the access control list for `%s'.
16409b0b
GM		 3195
3196 An access control list is a list of (identifier . rights) elements.
3197
3198 The identifier string specifies the corresponding user. The
3199 identifier \"anyone\" is reserved to refer to the universal identity.
3200
3201 Rights is a string listing a (possibly empty) set of alphanumeric
3202 characters, each character listing a set of operations which is being
3203 controlled. Letters are reserved for ``standard'' rights, listed
3204 below. Digits are reserved for implementation or site defined rights.
3205
3206 l - lookup (mailbox is visible to LIST/LSUB commands)
3207 r - read (SELECT the mailbox, perform CHECK, FETCH, PARTIAL,
3208 SEARCH, COPY from mailbox)
3209 s - keep seen/unseen information across sessions (STORE \\SEEN flag)
3210 w - write (STORE flags other than \\SEEN and \\DELETED)
3211 i - insert (perform APPEND, COPY into mailbox)
3212 p - post (send mail to submission address for mailbox,
3213 not enforced by IMAP4 itself)
3214 c - create and delete mailbox (CREATE new sub-mailboxes in any
3215 implementation-defined hierarchy, RENAME or DELETE mailbox)
3216 d - delete messages (STORE \\DELETED flag, perform EXPUNGE)
3217 a - administer (perform SETACL)" group)
3218 `(lambda (form)
3219 (nnimap-acl-edit
3220 ,mailbox ',method ',acl form)))))
3221
eec82323
LMI		 3222;; Group sorting commands
3223;; Suggested by Joe Hildebrand <hildjj@idaho.fuentez.com>.
3224
3225(defun gnus-group-sort-groups (func &optional reverse)
3226 "Sort the group buffer according to FUNC.
3227When used interactively, the sorting function used will be
3228determined by the `gnus-group-sort-function' variable.
3229If REVERSE (the prefix), reverse the sorting order."
3230 (interactive (list gnus-group-sort-function current-prefix-arg))
3231 (funcall gnus-group-sort-alist-function
3232 (gnus-make-sort-function func) reverse)
23f87bed 3233 (gnus-group-unmark-all-groups)
eec82323
LMI		 3234 (gnus-group-list-groups)
3235 (gnus-dribble-touch))
3236
3237(defun gnus-group-sort-flat (func reverse)
3238 ;; We peel off the dummy group from the alist.
3239 (when func
3240 (when (equal (gnus-info-group (car gnus-newsrc-alist)) "dummy.group")
3241 (pop gnus-newsrc-alist))
3242 ;; Do the sorting.
3243 (setq gnus-newsrc-alist
3244 (sort gnus-newsrc-alist func))
3245 (when reverse
3246 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist)))
3247 ;; Regenerate the hash table.
3248 (gnus-make-hashtable-from-newsrc-alist)))
3249
3250(defun gnus-group-sort-groups-by-alphabet (&optional reverse)
3251 "Sort the group buffer alphabetically by group name.
3252If REVERSE, sort in reverse order."
3253 (interactive "P")
3254 (gnus-group-sort-groups 'gnus-group-sort-by-alphabet reverse))
3255
23f87bed
MB		 3256(defun gnus-group-sort-groups-by-real-name (&optional reverse)
3257 "Sort the group buffer alphabetically by real (unprefixed) group name.
3258If REVERSE, sort in reverse order."
3259 (interactive "P")
3260 (gnus-group-sort-groups 'gnus-group-sort-by-real-name reverse))
3261
eec82323
LMI		 3262(defun gnus-group-sort-groups-by-unread (&optional reverse)
3263 "Sort the group buffer by number of unread articles.
3264If REVERSE, sort in reverse order."
3265 (interactive "P")
3266 (gnus-group-sort-groups 'gnus-group-sort-by-unread reverse))
3267
3268(defun gnus-group-sort-groups-by-level (&optional reverse)
3269 "Sort the group buffer by group level.
3270If REVERSE, sort in reverse order."
3271 (interactive "P")
3272 (gnus-group-sort-groups 'gnus-group-sort-by-level reverse))
3273
3274(defun gnus-group-sort-groups-by-score (&optional reverse)
3275 "Sort the group buffer by group score.
3276If REVERSE, sort in reverse order."
3277 (interactive "P")
3278 (gnus-group-sort-groups 'gnus-group-sort-by-score reverse))
3279
3280(defun gnus-group-sort-groups-by-rank (&optional reverse)
3281 "Sort the group buffer by group rank.
3282If REVERSE, sort in reverse order."
3283 (interactive "P")
3284 (gnus-group-sort-groups 'gnus-group-sort-by-rank reverse))
3285
3286(defun gnus-group-sort-groups-by-method (&optional reverse)
23f87bed 3287 "Sort the group buffer alphabetically by back end name.
eec82323
LMI		 3288If REVERSE, sort in reverse order."
3289 (interactive "P")
3290 (gnus-group-sort-groups 'gnus-group-sort-by-method reverse))
3291
23f87bed
MB		 3292(defun gnus-group-sort-groups-by-server (&optional reverse)
3293 "Sort the group buffer alphabetically by server name.
3294If REVERSE, sort in reverse order."
3295 (interactive "P")
3296 (gnus-group-sort-groups 'gnus-group-sort-by-server reverse))
3297
eec82323
LMI		 3298;;; Selected group sorting.
3299
3300(defun gnus-group-sort-selected-groups (n func &optional reverse)
3301 "Sort the process/prefixed groups."
3302 (interactive (list current-prefix-arg gnus-group-sort-function))
3303 (let ((groups (gnus-group-process-prefix n)))
3304 (funcall gnus-group-sort-selected-function
3305 groups (gnus-make-sort-function func) reverse)
23f87bed
MB		 3306 (gnus-group-unmark-all-groups)
3307 (gnus-group-list-groups)
3308 (gnus-dribble-touch)))
eec82323
LMI		 3309
3310(defun gnus-group-sort-selected-flat (groups func reverse)
3311 (let (entries infos)
3312 ;; First find all the group entries for these groups.
3313 (while groups
01c52d31 3314 (push (nthcdr 2 (gnus-group-entry (pop groups)))
eec82323
LMI		 3315 entries))
3316 ;; Then sort the infos.
3317 (setq infos
3318 (sort
3319 (mapcar
3320 (lambda (entry) (car entry))
3321 (setq entries (nreverse entries)))
3322 func))
3323 (when reverse
3324 (setq infos (nreverse infos)))
3325 ;; Go through all the infos and replace the old entries
3326 ;; with the new infos.
3327 (while infos
16409b0b 3328 (setcar (car entries) (pop infos))
eec82323
LMI		 3329 (pop entries))
3330 ;; Update the hashtable.
3331 (gnus-make-hashtable-from-newsrc-alist)))
3332
16409b0b 3333(defun gnus-group-sort-selected-groups-by-alphabet (&optional n reverse)
eec82323 3334 "Sort the group buffer alphabetically by group name.
16409b0b
GM		 3335Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3336sort in reverse order."
3337 (interactive (gnus-interactive "P\ny"))
3338 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-alphabet reverse))
eec82323 3339
23f87bed
MB		 3340(defun gnus-group-sort-selected-groups-by-real-name (&optional n reverse)
3341 "Sort the group buffer alphabetically by real group name.
3342Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3343sort in reverse order."
3344 (interactive (gnus-interactive "P\ny"))
3345 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-real-name reverse))
3346
16409b0b 3347(defun gnus-group-sort-selected-groups-by-unread (&optional n reverse)
eec82323 3348 "Sort the group buffer by number of unread articles.
16409b0b
GM		 3349Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3350sort in reverse order."
3351 (interactive (gnus-interactive "P\ny"))
3352 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-unread reverse))
eec82323 3353
16409b0b 3354(defun gnus-group-sort-selected-groups-by-level (&optional n reverse)
eec82323 3355 "Sort the group buffer by group level.
16409b0b
GM		 3356Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3357sort in reverse order."
3358 (interactive (gnus-interactive "P\ny"))
3359 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-level reverse))
eec82323 3360
16409b0b 3361(defun gnus-group-sort-selected-groups-by-score (&optional n reverse)
eec82323 3362 "Sort the group buffer by group score.
16409b0b
GM		 3363Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3364sort in reverse order."
3365 (interactive (gnus-interactive "P\ny"))
3366 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-score reverse))
eec82323 3367
16409b0b 3368(defun gnus-group-sort-selected-groups-by-rank (&optional n reverse)
eec82323 3369 "Sort the group buffer by group rank.
16409b0b
GM		 3370Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3371sort in reverse order."
3372 (interactive (gnus-interactive "P\ny"))
3373 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-rank reverse))
eec82323 3374
16409b0b 3375(defun gnus-group-sort-selected-groups-by-method (&optional n reverse)
23f87bed 3376 "Sort the group buffer alphabetically by back end name.
16409b0b
GM		 3377Obeys the process/prefix convention. If REVERSE (the symbolic prefix),
3378sort in reverse order."
3379 (interactive (gnus-interactive "P\ny"))
3380 (gnus-group-sort-selected-groups n 'gnus-group-sort-by-method reverse))
eec82323
LMI		 3381
3382;;; Sorting predicates.
3383
3384(defun gnus-group-sort-by-alphabet (info1 info2)
3385 "Sort alphabetically."
3386 (string< (gnus-info-group info1) (gnus-info-group info2)))
3387
3388(defun gnus-group-sort-by-real-name (info1 info2)
3389 "Sort alphabetically on real (unprefixed) names."
3390 (string< (gnus-group-real-name (gnus-info-group info1))
3391 (gnus-group-real-name (gnus-info-group info2))))
3392
3393(defun gnus-group-sort-by-unread (info1 info2)
3394 "Sort by number of unread articles."
01c52d31
MB		 3395 (let ((n1 (gnus-group-unread (gnus-info-group info1)))
3396 (n2 (gnus-group-unread (gnus-info-group info2))))
eec82323
LMI		 3397 (< (or (and (numberp n1) n1) 0)
3398 (or (and (numberp n2) n2) 0))))
3399
3400(defun gnus-group-sort-by-level (info1 info2)
3401 "Sort by level."
3402 (< (gnus-info-level info1) (gnus-info-level info2)))
3403
3404(defun gnus-group-sort-by-method (info1 info2)
23f87bed
MB		 3405 "Sort alphabetically by back end name."
3406 (string< (car (gnus-find-method-for-group
3407 (gnus-info-group info1) info1))
3408 (car (gnus-find-method-for-group
3409 (gnus-info-group info2) info2))))
3410
3411(defun gnus-group-sort-by-server (info1 info2)
3412 "Sort alphabetically by server name."
3413 (string< (gnus-method-to-full-server-name
3414 (gnus-find-method-for-group
3415 (gnus-info-group info1) info1))
3416 (gnus-method-to-full-server-name
3417 (gnus-find-method-for-group
3418 (gnus-info-group info2) info2))))
eec82323
LMI		 3419
3420(defun gnus-group-sort-by-score (info1 info2)
3421 "Sort by group score."
23f87bed 3422 (> (gnus-info-score info1) (gnus-info-score info2)))
eec82323
LMI		 3423
3424(defun gnus-group-sort-by-rank (info1 info2)
3425 "Sort by level and score."
3426 (let ((level1 (gnus-info-level info1))
3427 (level2 (gnus-info-level info2)))
3428 (or (< level1 level2)
3429 (and (= level1 level2)
3430 (> (gnus-info-score info1) (gnus-info-score info2))))))
3431
3432;;; Clearing data
3433
3434(defun gnus-group-clear-data (&optional arg)
ff4d3926
MB		 3435 "Clear all marks and read ranges from the current group.
3436Obeys the process/prefix convention."
eec82323
LMI		 3437 (interactive "P")
3438 (gnus-group-iterate arg
3439 (lambda (group)
3440 (let (info)
3441 (gnus-info-clear-data (setq info (gnus-get-info group)))
3442 (gnus-get-unread-articles-in-group info (gnus-active group) t)
3443 (when (gnus-group-goto-group group)
3444 (gnus-group-update-group-line))))))
3445
3446(defun gnus-group-clear-data-on-native-groups ()
3447 "Clear all marks and read ranges from all native groups."
3448 (interactive)
3449 (when (gnus-yes-or-no-p "Really clear all data from almost all groups? ")
3450 (let ((alist (cdr gnus-newsrc-alist))
3451 info)
3452 (while (setq info (pop alist))
3453 (when (gnus-group-native-p (gnus-info-group info))
3454 (gnus-info-clear-data info)))
3455 (gnus-get-unread-articles)
6748645f 3456 (gnus-dribble-touch)
eec82323
LMI		 3457 (when (gnus-y-or-n-p
3458 "Move the cache away to avoid problems in the future? ")
3459 (call-interactively 'gnus-cache-move-cache)))))
3460
3461(defun gnus-info-clear-data (info)
3462 "Clear all marks and read ranges from INFO."
23f87bed
MB		 3463 (let ((group (gnus-info-group info))
3464 action)
3465 (dolist (el (gnus-info-marks info))
3466 (push `(,(cdr el) add (,(car el))) action))
3467 (push `(,(gnus-info-read info) add (read)) action)
eec82323
LMI		 3468 (gnus-undo-register
3469 `(progn
23f87bed 3470 (gnus-request-set-mark ,group ',action)
eec82323
LMI		 3471 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
3472 (gnus-info-set-read ',info ',(gnus-info-read info))
3473 (when (gnus-group-goto-group ,group)
23f87bed 3474 (gnus-get-unread-articles-in-group ',info ',(gnus-active group) t)
eec82323 3475 (gnus-group-update-group-line))))
23f87bed
MB		 3476 (setq action (mapcar (lambda (el) (list (nth 0 el) 'del (nth 2 el)))
3477 action))
3478 (gnus-request-set-mark group action)
eec82323
LMI		 3479 (gnus-info-set-read info nil)
3480 (when (gnus-info-marks info)
3481 (gnus-info-set-marks info nil))))
3482
3483;; Group catching up.
3484
3485(defun gnus-group-catchup-current (&optional n all)
16409b0b 3486 "Mark all unread articles in the current newsgroup as read.
6748645f 3487If prefix argument N is numeric, the next N newsgroups will be
eec82323
LMI		 3488caught up. If ALL is non-nil, marked articles will also be marked as
3489read. Cross references (Xref: header) of articles are ignored.
6748645f
LMI		 3490The number of newsgroups that this function was unable to catch
3491up is returned."
eec82323 3492 (interactive "P")
eec82323 3493 (let ((groups (gnus-group-process-prefix n))
16409b0b
GM		 3494 (ret 0)
3495 group)
6748645f 3496 (unless groups (error "No groups selected"))
eec82323
LMI		 3497 (if (not
3498 (or (not gnus-interactive-catchup) ;Without confirmation?
3499 gnus-expert-user
3500 (gnus-y-or-n-p
3501 (format
3502 (if all
3503 "Do you really want to mark all articles in %s as read? "
3504 "Mark all unread articles in %s as read? ")
3505 (if (= (length groups) 1)
91472578 3506 (gnus-group-decoded-name (car groups))
eec82323
LMI		 3507 (format "these %d groups" (length groups)))))))
3508 n
16409b0b
GM		 3509 (while (setq group (pop groups))
3510 (gnus-group-remove-mark group)
eec82323 3511 ;; Virtual groups have to be given special treatment.
16409b0b 3512 (let ((method (gnus-find-method-for-group group)))
eec82323
LMI		 3513 (when (eq 'nnvirtual (car method))
3514 (nnvirtual-catchup-group
16409b0b 3515 (gnus-group-real-name group) (nth 1 method) all)))
01c52d31
MB		 3516 (cond
3517 ((>= (gnus-group-level group) gnus-level-zombie)
3518 (gnus-message 2 "Dead groups can't be caught up"))
3519 ((prog1
3520 (gnus-group-goto-group group)
3521 (gnus-group-catchup group all))
3522 (gnus-group-update-group-line))
3523 (t
3524 (setq ret (1+ ret)))))
eec82323
LMI		 3525 (gnus-group-next-unread-group 1)
3526 ret)))
3527
3528(defun gnus-group-catchup-current-all (&optional n)
3529 "Mark all articles in current newsgroup as read.
3530Cross references (Xref: header) of articles are ignored."
3531 (interactive "P")
3532 (gnus-group-catchup-current n 'all))
3533
3534(defun gnus-group-catchup (group &optional all)
3535 "Mark all articles in GROUP as read.
3536If ALL is non-nil, all articles are marked as read.
3537The return value is the number of articles that were marked as read,
3538or nil if no action could be taken."
01c52d31 3539 (let* ((entry (gnus-group-entry group))
23f87bed 3540 (num (car entry))
01c52d31 3541 (marks (gnus-info-marks (nth 2 entry)))
54506618 3542 (unread (gnus-sequence-of-unread-articles group)))
16409b0b
GM		 3543 ;; Remove entries for this group.
3544 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI		 3545 ;; Do the updating only if the newsgroup isn't killed.
3546 (if (not (numberp (car entry)))
3547 (gnus-message 1 "Can't catch up %s; non-active group" group)
23f87bed
MB		 3548 (gnus-update-read-articles group nil)
3549 (when all
3550 ;; Nix out the lists of marks and dormants.
3551 (gnus-request-set-mark group (list (list (cdr (assq 'tick marks))
3552 'del '(tick))
3553 (list (cdr (assq 'dormant marks))
3554 'del '(dormant))))
54506618 3555 (setq unread (gnus-range-add (gnus-range-add
01c52d31
MB		 3556 unread (cdr (assq 'dormant marks)))
3557 (cdr (assq 'tick marks))))
23f87bed
MB		 3558 (gnus-add-marked-articles group 'tick nil nil 'force)
3559 (gnus-add-marked-articles group 'dormant nil nil 'force))
eec82323
LMI		 3560 ;; Do auto-expirable marks if that's required.
3561 (when (gnus-group-auto-expirable-p group)
01c52d31
MB		 3562 (gnus-range-map
3563 (lambda (article)
3564 (gnus-add-marked-articles group 'expire (list article))
3565 (gnus-request-set-mark group (list (list (list article)
3566 'add '(expire)))))
3567 unread))
23f87bed
MB		 3568 (let ((gnus-newsgroup-name group))
3569 (gnus-run-hooks 'gnus-group-catchup-group-hook))
3570 num)))
eec82323
LMI		 3571
3572(defun gnus-group-expire-articles (&optional n)
23f87bed
MB		 3573 "Expire all expirable articles in the current newsgroup.
3574Uses the process/prefix convention."
eec82323
LMI		 3575 (interactive "P")
3576 (let ((groups (gnus-group-process-prefix n))
3577 group)
3578 (unless groups
3579 (error "No groups to expire"))
3580 (while (setq group (pop groups))
3581 (gnus-group-remove-mark group)
16409b0b 3582 (gnus-group-expire-articles-1 group)
eec82323
LMI		 3583 (gnus-dribble-touch)
3584 (gnus-group-position-point))))
3585
16409b0b
GM		 3586(defun gnus-group-expire-articles-1 (group)
3587 (when (gnus-check-backend-function 'request-expire-articles group)
91472578
MB		 3588 (gnus-message 6 "Expiring articles in %s..."
3589 (gnus-group-decoded-name group))
16409b0b
GM		 3590 (let* ((info (gnus-get-info group))
3591 (expirable (if (gnus-group-total-expirable-p group)
3592 (cons nil (gnus-list-of-read-articles group))
3593 (assq 'expire (gnus-info-marks info))))
3594 (expiry-wait (gnus-group-find-parameter group 'expiry-wait))
3595 (nnmail-expiry-target
3596 (or (gnus-group-find-parameter group 'expiry-target)
3597 nnmail-expiry-target)))
3598 (when expirable
3599 (gnus-check-group group)
3600 (setcdr
3601 expirable
3602 (gnus-compress-sequence
3603 (if expiry-wait
3604 ;; We set the expiry variables to the group
3605 ;; parameter.
3606 (let ((nnmail-expiry-wait-function nil)
3607 (nnmail-expiry-wait expiry-wait))
3608 (gnus-request-expire-articles
3609 (gnus-uncompress-sequence (cdr expirable)) group))
3610 ;; Just expire using the normal expiry values.
3611 (gnus-request-expire-articles
3612 (gnus-uncompress-sequence (cdr expirable)) group))))
3613 (gnus-close-group group))
91472578
MB		 3614 (gnus-message 6 "Expiring articles in %s...done"
3615 (gnus-group-decoded-name group))
16409b0b
GM		 3616 ;; Return the list of un-expired articles.
3617 (cdr expirable))))
3618
eec82323
LMI		 3619(defun gnus-group-expire-all-groups ()
3620 "Expire all expirable articles in all newsgroups."
3621 (interactive)
3622 (save-excursion
3623 (gnus-message 5 "Expiring...")
3624 (let ((gnus-group-marked (mapcar (lambda (info) (gnus-info-group info))
3625 (cdr gnus-newsrc-alist))))
3626 (gnus-group-expire-articles nil)))
3627 (gnus-group-position-point)
3628 (gnus-message 5 "Expiring...done"))
3629
3630(defun gnus-group-set-current-level (n level)
3631 "Set the level of the next N groups to LEVEL."
3632 (interactive
3633 (list
3634 current-prefix-arg
23f87bed
MB		 3635 (progn
3636 (unless (gnus-group-process-prefix current-prefix-arg)
3637 (error "No group on the current line"))
e9bd5782 3638 (string-to-number
23f87bed
MB		 3639 (let ((s (read-string
3640 (format "Level (default %s): "
3641 (or (gnus-group-group-level)
3642 gnus-level-default-subscribed)))))
3643 (if (string-match "^\\s-*$" s)
3644 (int-to-string (or (gnus-group-group-level)
3645 gnus-level-default-subscribed))
3646 s))))))
eec82323 3647 (unless (and (>= level 1) (<= level gnus-level-killed))
16409b0b 3648 (error "Invalid level: %d" level))
01c52d31
MB		 3649 (dolist (group (gnus-group-process-prefix n))
3650 (gnus-group-remove-mark group)
3651 (gnus-message 6 "Changed level of %s from %d to %d"
3652 (gnus-group-decoded-name group)
3653 (or (gnus-group-group-level) gnus-level-killed)
3654 level)
3655 (gnus-group-change-level
3656 group level (or (gnus-group-group-level) gnus-level-killed))
3657 (gnus-group-update-group-line))
eec82323
LMI		 3658 (gnus-group-position-point))
3659
3660(defun gnus-group-unsubscribe (&optional n)
3661 "Unsubscribe the current group."
3662 (interactive "P")
3663 (gnus-group-unsubscribe-current-group n 'unsubscribe))
3664
3665(defun gnus-group-subscribe (&optional n)
3666 "Subscribe the current group."
3667 (interactive "P")
3668 (gnus-group-unsubscribe-current-group n 'subscribe))
3669
3670(defun gnus-group-unsubscribe-current-group (&optional n do-sub)
3671 "Toggle subscription of the current group.
3672If given numerical prefix, toggle the N next groups."
3673 (interactive "P")
23f87bed
MB		 3674 (dolist (group (gnus-group-process-prefix n))
3675 (gnus-group-remove-mark group)
3676 (gnus-group-unsubscribe-group
3677 group
3678 (cond
3679 ((eq do-sub 'unsubscribe)
3680 gnus-level-default-unsubscribed)
3681 ((eq do-sub 'subscribe)
3682 gnus-level-default-subscribed)
3683 ((<= (gnus-group-group-level) gnus-level-subscribed)
3684 gnus-level-default-unsubscribed)
3685 (t
3686 gnus-level-default-subscribed))
3687 t)
3688 (gnus-group-update-group-line))
3689 (gnus-group-next-group 1))
eec82323
LMI		 3690
3691(defun gnus-group-unsubscribe-group (group &optional level silent)
3692 "Toggle subscription to GROUP.
3693Killed newsgroups are subscribed. If SILENT, don't try to update the
3694group line."
01c52d31
MB		 3695 (interactive (list (gnus-group-completing-read
3696 "Group: " nil nil (gnus-read-active-file-p))))
3697 (let ((newsrc (gnus-group-entry group)))
eec82323 3698 (cond
6748645f 3699 ((string-match "^[ \t]*$" group)
eec82323
LMI		 3700 (error "Empty group name"))
3701 (newsrc
3702 ;; Toggle subscription flag.
3703 (gnus-group-change-level
3704 newsrc (if level level (if (<= (gnus-info-level (nth 2 newsrc))
3705 gnus-level-subscribed)
3706 (1+ gnus-level-subscribed)
3707 gnus-level-default-subscribed)))
3708 (unless silent
3709 (gnus-group-update-group group)))
3710 ((and (stringp group)
3711 (or (not (gnus-read-active-file-p))
3712 (gnus-active group)))
3713 ;; Add new newsgroup.
3714 (gnus-group-change-level
3715 group
3716 (if level level gnus-level-default-subscribed)
3717 (or (and (member group gnus-zombie-list)
3718 gnus-level-zombie)
3719 gnus-level-killed)
3720 (when (gnus-group-group-name)
01c52d31 3721 (gnus-group-entry (gnus-group-group-name))))
eec82323
LMI		 3722 (unless silent
3723 (gnus-group-update-group group)))
3724 (t (error "No such newsgroup: %s" group)))
3725 (gnus-group-position-point)))
3726
3727(defun gnus-group-transpose-groups (n)
3728 "Move the current newsgroup up N places.
c30ba437 3729If given a negative prefix, move down instead. The difference between
eec82323
LMI		 3730N and the number of steps taken is returned."
3731 (interactive "p")
3732 (unless (gnus-group-group-name)
3733 (error "No group on current line"))
3734 (gnus-group-kill-group 1)
3735 (prog1
3736 (forward-line (- n))
3737 (gnus-group-yank-group)
3738 (gnus-group-position-point)))
3739
16409b0b
GM		 3740(defun gnus-group-kill-all-zombies (&optional dummy)
3741 "Kill all zombie newsgroups.
3742The optional DUMMY should always be nil."
3743 (interactive (list (not (gnus-yes-or-no-p "Really kill all zombies? "))))
3744 (unless dummy
3745 (setq gnus-killed-list (nconc gnus-zombie-list gnus-killed-list))
3746 (setq gnus-zombie-list nil)
3747 (gnus-dribble-touch)
3748 (gnus-group-list-groups)))
eec82323
LMI		 3749
3750(defun gnus-group-kill-region (begin end)
3751 "Kill newsgroups in current region (excluding current point).
3752The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
3753 (interactive "r")
3754 (let ((lines
3755 ;; Count lines.
3756 (save-excursion
3757 (count-lines
3758 (progn
3759 (goto-char begin)
01c52d31 3760 (point-at-bol))
eec82323
LMI		 3761 (progn
3762 (goto-char end)
01c52d31 3763 (point-at-bol))))))
eec82323
LMI		 3764 (goto-char begin)
3765 (beginning-of-line) ;Important when LINES < 1
3766 (gnus-group-kill-group lines)))
3767
3768(defun gnus-group-kill-group (&optional n discard)
3769 "Kill the next N groups.
3770The killed newsgroups can be yanked by using \\[gnus-group-yank-group].
3771However, only groups that were alive can be yanked; already killed
3772groups or zombie groups can't be yanked.
3773The return value is the name of the group that was killed, or a list
3774of groups killed."
3775 (interactive "P")
3776 (let ((buffer-read-only nil)
3777 (groups (gnus-group-process-prefix n))
3778 group entry level out)
3779 (if (< (length groups) 10)
3780 ;; This is faster when there are few groups.
3781 (while groups
3782 (push (setq group (pop groups)) out)
3783 (gnus-group-remove-mark group)
3784 (setq level (gnus-group-group-level))
3785 (gnus-delete-line)
3786 (when (and (not discard)
01c52d31 3787 (setq entry (gnus-group-entry group)))
eec82323
LMI		 3788 (gnus-undo-register
3789 `(progn
3790 (gnus-group-goto-group ,(gnus-group-group-name))
3791 (gnus-group-yank-group)))
3792 (push (cons (car entry) (nth 2 entry))
3793 gnus-list-of-killed-groups))
3794 (gnus-group-change-level
16409b0b 3795 (if entry entry group) gnus-level-killed (if entry nil level))
91472578 3796 (message "Killed group %s" (gnus-group-decoded-name group)))
eec82323
LMI		 3797 ;; If there are lots and lots of groups to be killed, we use
3798 ;; this thing instead.
23f87bed
MB		 3799 (dolist (group (nreverse groups))
3800 (gnus-group-remove-mark group)
3801 (gnus-delete-line)
3802 (push group gnus-killed-list)
3803 (setq gnus-newsrc-alist
3804 (delq (assoc group gnus-newsrc-alist)
3805 gnus-newsrc-alist))
3806 (when gnus-group-change-level-function
3807 (funcall gnus-group-change-level-function
3808 group gnus-level-killed 3))
3809 (cond
01c52d31 3810 ((setq entry (gnus-group-entry group))
23f87bed
MB		 3811 (push (cons (car entry) (nth 2 entry))
3812 gnus-list-of-killed-groups)
3813 (setcdr (cdr entry) (cdddr entry)))
3814 ((member group gnus-zombie-list)
3815 (setq gnus-zombie-list (delete group gnus-zombie-list))))
3816 ;; There may be more than one instance displayed.
3817 (while (gnus-group-goto-group group)
3818 (gnus-delete-line)))
3819 (gnus-make-hashtable-from-newsrc-alist))
eec82323
LMI		 3820
3821 (gnus-group-position-point)
3822 (if (< (length out) 2) (car out) (nreverse out))))
3823
3824(defun gnus-group-yank-group (&optional arg)
6748645f
LMI		 3825 "Yank the last newsgroups killed with \\[gnus-group-kill-group], inserting it before the current newsgroup.
3826The numeric ARG specifies how many newsgroups are to be yanked. The
3827name of the newsgroup yanked is returned, or (if several groups are
3828yanked) a list of yanked groups is returned."
eec82323
LMI		 3829 (interactive "p")
3830 (setq arg (or arg 1))
3831 (let (info group prev out)
3832 (while (>= (decf arg) 0)
3833 (when (not (setq info (pop gnus-list-of-killed-groups)))
3834 (error "No more newsgroups to yank"))
3835 (push (setq group (nth 1 info)) out)
3836 ;; Find which newsgroup to insert this one before - search
3837 ;; backward until something suitable is found. If there are no
3838 ;; other newsgroups in this buffer, just make this newsgroup the
3839 ;; first newsgroup.
3840 (setq prev (gnus-group-group-name))
3841 (gnus-group-change-level
3842 info (gnus-info-level (cdr info)) gnus-level-killed
01c52d31 3843 (and prev (gnus-group-entry prev))
eec82323
LMI		 3844 t)
3845 (gnus-group-insert-group-line-info group)
3846 (gnus-undo-register
3847 `(when (gnus-group-goto-group ,group)
3848 (gnus-group-kill-group 1))))
3849 (forward-line -1)
3850 (gnus-group-position-point)
3851 (if (< (length out) 2) (car out) (nreverse out))))
3852
3853(defun gnus-group-kill-level (level)
3854 "Kill all groups that is on a certain LEVEL."
3855 (interactive "nKill all groups on level: ")
3856 (cond
3857 ((= level gnus-level-zombie)
3858 (setq gnus-killed-list
3859 (nconc gnus-zombie-list gnus-killed-list))
3860 (setq gnus-zombie-list nil))
3861 ((and (< level gnus-level-zombie)
3862 (> level 0)
3863 (or gnus-expert-user
3864 (gnus-yes-or-no-p
3865 (format
3866 "Do you really want to kill all groups on level %d? "
3867 level))))
3868 (let* ((prev gnus-newsrc-alist)
3869 (alist (cdr prev)))
3870 (while alist
3871 (if (= (gnus-info-level (car alist)) level)
3872 (progn
3873 (push (gnus-info-group (car alist)) gnus-killed-list)
3874 (setcdr prev (cdr alist)))
3875 (setq prev alist))
3876 (setq alist (cdr alist)))
3877 (gnus-make-hashtable-from-newsrc-alist)
3878 (gnus-group-list-groups)))
3879 (t
16409b0b 3880 (error "Can't kill; invalid level: %d" level))))
eec82323
LMI		 3881
3882(defun gnus-group-list-all-groups (&optional arg)
3883 "List all newsgroups with level ARG or lower.
23f87bed 3884Default is `gnus-level-unsubscribed', which lists all subscribed and most
eec82323
LMI		 3885unsubscribed groups."
3886 (interactive "P")
3887 (gnus-group-list-groups (or arg gnus-level-unsubscribed) t))
3888
3889;; Redefine this to list ALL killed groups if prefix arg used.
3890;; Rewritten by engstrom@src.honeywell.com (Eric Engstrom).
3891(defun gnus-group-list-killed (&optional arg)
3892 "List all killed newsgroups in the group buffer.
3893If ARG is non-nil, list ALL killed groups known to Gnus. This may
3894entail asking the server for the groups."
3895 (interactive "P")
3896 ;; Find all possible killed newsgroups if arg.
3897 (when arg
3898 (gnus-get-killed-groups))
3899 (if (not gnus-killed-list)
3900 (gnus-message 6 "No killed groups")
3901 (let (gnus-group-list-mode)
3902 (funcall gnus-group-prepare-function
3903 gnus-level-killed t gnus-level-killed))
3904 (goto-char (point-min)))
3905 (gnus-group-position-point))
3906
3907(defun gnus-group-list-zombies ()
3908 "List all zombie newsgroups in the group buffer."
3909 (interactive)
3910 (if (not gnus-zombie-list)
3911 (gnus-message 6 "No zombie groups")
3912 (let (gnus-group-list-mode)
3913 (funcall gnus-group-prepare-function
3914 gnus-level-zombie t gnus-level-zombie))
3915 (goto-char (point-min)))
3916 (gnus-group-position-point))
3917
3918(defun gnus-group-list-active ()
3919 "List all groups that are available from the server(s)."
3920 (interactive)
3921 ;; First we make sure that we have really read the active file.
3922 (unless (gnus-read-active-file-p)
16409b0b 3923 (let ((gnus-read-active-file t)
54506618 3924 (gnus-agent gnus-plugged)); If we're actually plugged, store the active file in the agent.
eec82323
LMI		 3925 (gnus-read-active-file)))
3926 ;; Find all groups and sort them.
3927 (let ((groups
3928 (sort
3929 (let (list)
3930 (mapatoms
3931 (lambda (sym)
3932 (and (boundp sym)
3933 (symbol-value sym)
3934 (push (symbol-name sym) list)))
3935 gnus-active-hashtb)
3936 list)
3937 'string<))
3938 (buffer-read-only nil)
3939 group)
3940 (erase-buffer)
3941 (while groups
16409b0b 3942 (setq group (pop groups))
eec82323
LMI		 3943 (gnus-add-text-properties
3944 (point) (prog1 (1+ (point))
3945 (insert " *: "
23f87bed 3946 (gnus-group-decoded-name group)
16409b0b 3947 "\n"))
eec82323
LMI		 3948 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
3949 'gnus-unread t
3950 'gnus-level (inline (gnus-group-level group)))))
3951 (goto-char (point-min))))
3952
3953(defun gnus-activate-all-groups (level)
3954 "Activate absolutely all groups."
6748645f 3955 (interactive (list gnus-level-unsubscribed))
eec82323
LMI		 3956 (let ((gnus-activate-level level)
3957 (gnus-activate-foreign-newsgroups level))
3958 (gnus-group-get-new-news)))
3959
3960(defun gnus-group-get-new-news (&optional arg)
3961 "Get newly arrived articles.
3962If ARG is a number, it specifies which levels you are interested in
3963re-scanning. If ARG is non-nil and not a number, this will force
3964\"hard\" re-reading of the active files from all servers."
3965 (interactive "P")
16409b0b
GM		 3966 (require 'nnmail)
3967 (let ((gnus-inhibit-demon t)
3968 ;; Binding this variable will inhibit multiple fetchings
3969 ;; of the same mail source.
3970 (nnmail-fetched-sources (list t)))
23f87bed 3971 (gnus-run-hooks 'gnus-get-top-new-news-hook)
6748645f 3972 (gnus-run-hooks 'gnus-get-new-news-hook)
eec82323
LMI		 3973
3974 ;; Read any slave files.
3975 (unless gnus-slave
3976 (gnus-master-read-slave-newsrc))
3977
3978 ;; We might read in new NoCeM messages here.
3979 (when (and gnus-use-nocem
ea8ae765
MB		 3980 (or (and (numberp gnus-use-nocem)
3981 (numberp arg)
3982 (>= arg gnus-use-nocem))
3983 (not arg)))
eec82323
LMI		 3984 (gnus-nocem-scan-groups))
3985 ;; If ARG is not a number, then we read the active file.
3986 (when (and arg (not (numberp arg)))
3987 (let ((gnus-read-active-file t))
3988 (gnus-read-active-file))
3989 (setq arg nil)
3990
3991 ;; If the user wants it, we scan for new groups.
3992 (when (eq gnus-check-new-newsgroups 'always)
3993 (gnus-find-new-newsgroups)))
3994
3995 (setq arg (gnus-group-default-level arg t))
3996 (if (and gnus-read-active-file (not arg))
3997 (progn
3998 (gnus-read-active-file)
3999 (gnus-get-unread-articles arg))
4000 (let ((gnus-read-active-file (if arg nil gnus-read-active-file)))
4001 (gnus-get-unread-articles arg)))
01c52d31 4002 (gnus-check-reasonable-setup)
6748645f 4003 (gnus-run-hooks 'gnus-after-getting-new-news-hook)
eec82323
LMI		 4004 (gnus-group-list-groups (and (numberp arg)
4005 (max (car gnus-group-list-mode) arg)))))
4006
a8151ef7 4007(defun gnus-group-get-new-news-this-group (&optional n dont-scan)
eec82323
LMI		 4008 "Check for newly arrived news in the current group (and the N-1 next groups).
4009The difference between N and the number of newsgroup checked is returned.
531e5812
MB		 4010If N is negative, this group and the N-1 previous groups will be checked.
4011If DONT-SCAN is non-nil, scan non-activated groups as well."
eec82323
LMI		 4012 (interactive "P")
4013 (let* ((groups (gnus-group-process-prefix n))
4014 (ret (if (numberp n) (- n (length groups)) 0))
4015 (beg (unless n
4016 (point)))
16409b0b
GM		 4017 group method
4018 (gnus-inhibit-demon t)
4019 ;; Binding this variable will inhibit multiple fetchings
4020 ;; of the same mail source.
4021 (nnmail-fetched-sources (list t)))
4022 (gnus-run-hooks 'gnus-get-new-news-hook)
eec82323
LMI		 4023 (while (setq group (pop groups))
4024 (gnus-group-remove-mark group)
4025 ;; Bypass any previous denials from the server.
6748645f 4026 (gnus-remove-denial (setq method (gnus-find-method-for-group group)))
01c52d31
MB		 4027 (if (gnus-activate-group group (if dont-scan nil 'scan) nil method)
4028 (let ((info (gnus-get-info group))
4029 (active (gnus-active group)))
4030 (when info
4031 (gnus-request-update-info info method))
4032 (gnus-get-unread-articles-in-group info active)
eec82323
LMI		 4033 (unless (gnus-virtual-group-p group)
4034 (gnus-close-group group))
16409b0b
GM		 4035 (when gnus-agent
4036 (gnus-agent-save-group-info
01c52d31 4037 method (gnus-group-real-name group) active))
eec82323
LMI		 4038 (gnus-group-update-group group))
4039 (if (eq (gnus-server-status (gnus-find-method-for-group group))
4040 'denied)
4041 (gnus-error 3 "Server denied access")
4042 (gnus-error 3 "%s error: %s" group (gnus-status-message group)))))
4043 (when beg
4044 (goto-char beg))
4045 (when gnus-goto-next-group-when-activating
4046 (gnus-group-next-unread-group 1 t))
4047 (gnus-summary-position-point)
4048 ret))
4049
4050(defun gnus-group-fetch-faq (group &optional faq-dir)
4051 "Fetch the FAQ for the current group.
4052If given a prefix argument, prompt for the FAQ dir
4053to use."
4054 (interactive
4055 (list
4056 (gnus-group-group-name)
a8151ef7
LMI		 4057 (when current-prefix-arg
4058 (completing-read
8f688cb0 4059 "FAQ dir: " (and (listp gnus-group-faq-directory)
c6e7b580 4060 (mapcar #'list
a8151ef7 4061 gnus-group-faq-directory))))))
eec82323
LMI		 4062 (unless group
4063 (error "No group name given"))
4064 (let ((dirs (or faq-dir gnus-group-faq-directory))
4065 dir found file)
4066 (unless (listp dirs)
4067 (setq dirs (list dirs)))
4068 (while (and (not found)
4069 (setq dir (pop dirs)))
6748645f 4070 (let ((name (gnus-group-real-name group)))
c6e7b580 4071 (setq file (expand-file-name name dir)))
eec82323
LMI		 4072 (if (not (file-exists-p file))
4073 (gnus-message 1 "No such file: %s" file)
4074 (let ((enable-local-variables nil))
4075 (find-file file)
4076 (setq found t))))))
4077
23f87bed
MB		 4078(defun gnus-group-fetch-charter (group)
4079 "Fetch the charter for the current group.
4080If given a prefix argument, prompt for a group."
4081 (interactive
4082 (list (or (when current-prefix-arg
01c52d31 4083 (gnus-group-completing-read "Group: "))
23f87bed
MB		 4084 (gnus-group-group-name)
4085 gnus-newsgroup-name)))
4086 (unless group
4087 (error "No group name given"))
4088 (require 'mm-url)
4089 (condition-case nil (require 'url-http) (error nil))
4090 (let ((name (mm-url-form-encode-xwfu (gnus-group-real-name group)))
4091 url hierarchy)
4092 (when (string-match "\\(^[^\\.]+\\)\\..*" name)
4093 (setq hierarchy (match-string 1 name))
4094 (if (and (setq url (cdr (assoc hierarchy gnus-group-charter-alist)))
4095 (if (fboundp 'url-http-file-exists-p)
4096 (url-http-file-exists-p (eval url))
4097 t))
4098 (browse-url (eval url))
4099 (setq url (concat "http://" hierarchy
4100 ".news-admin.org/charters/" name))
4101 (if (and (fboundp 'url-http-file-exists-p)
4102 (url-http-file-exists-p url))
4103 (browse-url url)
4104 (gnus-group-fetch-control group))))))
4105
4106(defun gnus-group-fetch-control (group)
4107 "Fetch the archived control messages for the current group.
4108If given a prefix argument, prompt for a group."
4109 (interactive
4110 (list (or (when current-prefix-arg
01c52d31 4111 (gnus-group-completing-read "Group: "))
23f87bed
MB		 4112 (gnus-group-group-name)
4113 gnus-newsgroup-name)))
4114 (unless group
4115 (error "No group name given"))
4116 (let ((name (gnus-group-real-name group))
4117 hierarchy)
4118 (when (string-match "\\(^[^\\.]+\\)\\..*" name)
4119 (setq hierarchy (match-string 1 name))
4120 (if gnus-group-fetch-control-use-browse-url
4121 (browse-url (concat "ftp://ftp.isc.org/usenet/control/"
4122 hierarchy "/" name ".gz"))
4123 (let ((enable-local-variables nil))
4124 (gnus-group-read-ephemeral-group
4125 group
4126 `(nndoc ,group (nndoc-address
4127 ,(find-file-noselect
4128 (concat "/ftp@ftp.isc.org:/usenet/control/"
4129 hierarchy "/" name ".gz")))
4130 (nndoc-article-type mbox)) t nil nil))))))
4131
eec82323
LMI		 4132(defun gnus-group-describe-group (force &optional group)
4133 "Display a description of the current newsgroup."
4134 (interactive (list current-prefix-arg (gnus-group-group-name)))
4135 (let* ((method (gnus-find-method-for-group group))
4136 (mname (gnus-group-prefixed-name "" method))
4137 desc)
4138 (when (and force
4139 gnus-description-hashtb)
4140 (gnus-sethash mname nil gnus-description-hashtb))
4141 (unless group
4142 (error "No group name given"))
4143 (when (or (and gnus-description-hashtb
4144 ;; We check whether this group's method has been
4145 ;; queried for a description file.
4146 (gnus-gethash mname gnus-description-hashtb))
4147 (setq desc (gnus-group-get-description group))
4148 (gnus-read-descriptions-file method))
4149 (gnus-message 1
4150 (or desc (gnus-gethash group gnus-description-hashtb)
4151 "No description available")))))
4152
4153;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
4154(defun gnus-group-describe-all-groups (&optional force)
4155 "Pop up a buffer with descriptions of all newsgroups."
4156 (interactive "P")
4157 (when force
4158 (setq gnus-description-hashtb nil))
4159 (when (not (or gnus-description-hashtb
4160 (gnus-read-all-descriptions-files)))
4161 (error "Couldn't request descriptions file"))
4162 (let ((buffer-read-only nil)
4163 b)
4164 (erase-buffer)
4165 (mapatoms
4166 (lambda (group)
4167 (setq b (point))
16409b0b 4168 (let ((charset (gnus-group-name-charset nil (symbol-name group))))
a1506d29 4169 (insert (format " *: %-20s %s\n"
16409b0b
GM		 4170 (gnus-group-name-decode
4171 (symbol-name group) charset)
4172 (gnus-group-name-decode
4173 (symbol-value group) charset))))
eec82323
LMI		 4174 (gnus-add-text-properties
4175 b (1+ b) (list 'gnus-group group
4176 'gnus-unread t 'gnus-marked nil
4177 'gnus-level (1+ gnus-level-subscribed))))
4178 gnus-description-hashtb)
4179 (goto-char (point-min))
4180 (gnus-group-position-point)))
4181
4182;; Suggested by Daniel Quinlan <quinlan@best.com>.
4183(defun gnus-group-apropos (regexp &optional search-description)
4184 "List all newsgroups that have names that match a regexp."
4185 (interactive "sGnus apropos (regexp): ")
4186 (let ((prev "")
4187 (obuf (current-buffer))
4188 groups des)
4189 ;; Go through all newsgroups that are known to Gnus.
4190 (mapatoms
4191 (lambda (group)
4192 (and (symbol-name group)
4193 (string-match regexp (symbol-name group))
6748645f 4194 (symbol-value group)
eec82323
LMI		 4195 (push (symbol-name group) groups)))
4196 gnus-active-hashtb)
4197 ;; Also go through all descriptions that are known to Gnus.
4198 (when search-description
4199 (mapatoms
4200 (lambda (group)
4201 (and (string-match regexp (symbol-value group))
eec82323
LMI		 4202 (push (symbol-name group) groups)))
4203 gnus-description-hashtb))
4204 (if (not groups)
4205 (gnus-message 3 "No groups matched \"%s\"." regexp)
4206 ;; Print out all the groups.
4207 (save-excursion
4208 (pop-to-buffer "*Gnus Help*")
16409b0b 4209 (buffer-disable-undo)
eec82323
LMI		 4210 (erase-buffer)
4211 (setq groups (sort groups 'string<))
4212 (while groups
4213 ;; Groups may be entered twice into the list of groups.
4214 (when (not (string= (car groups) prev))
16409b0b
GM		 4215 (setq prev (car groups))
4216 (let ((charset (gnus-group-name-charset nil prev)))
4217 (insert (gnus-group-name-decode prev charset) "\n")
4218 (when (and gnus-description-hashtb
4219 (setq des (gnus-gethash (car groups)
4220 gnus-description-hashtb)))
4221 (insert " " (gnus-group-name-decode des charset) "\n"))))
eec82323
LMI		 4222 (setq groups (cdr groups)))
4223 (goto-char (point-min))))
4224 (pop-to-buffer obuf)))
4225
4226(defun gnus-group-description-apropos (regexp)
23f87bed 4227 "List all newsgroups that have names or descriptions that match REGEXP."
eec82323
LMI		 4228 (interactive "sGnus description apropos (regexp): ")
4229 (when (not (or gnus-description-hashtb
4230 (gnus-read-all-descriptions-files)))
4231 (error "Couldn't request descriptions file"))
4232 (gnus-group-apropos regexp t))
4233
4234;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
4235(defun gnus-group-list-matching (level regexp &optional all lowest)
4236 "List all groups with unread articles that match REGEXP.
4237If the prefix LEVEL is non-nil, it should be a number that says which
4238level to cut off listing groups.
4239If ALL, also list groups with no unread articles.
4240If LOWEST, don't list groups with level lower than LOWEST.
4241
4242This command may read the active file."
4243 (interactive "P\nsList newsgroups matching: ")
4244 ;; First make sure active file has been read.
4245 (when (and level
4246 (> (prefix-numeric-value level) gnus-level-killed))
4247 (gnus-get-killed-groups))
23f87bed
MB		 4248 (funcall gnus-group-prepare-function
4249 (or level gnus-level-subscribed) (and all t) (or lowest 1) regexp)
eec82323
LMI		 4250 (goto-char (point-min))
4251 (gnus-group-position-point))
4252
4253(defun gnus-group-list-all-matching (level regexp &optional lowest)
4254 "List all groups that match REGEXP.
4255If the prefix LEVEL is non-nil, it should be a number that says which
4256level to cut off listing groups.
4257If LOWEST, don't list groups with level lower than LOWEST."
4258 (interactive "P\nsList newsgroups matching: ")
4259 (when level
4260 (setq level (prefix-numeric-value level)))
4261 (gnus-group-list-matching (or level gnus-level-killed) regexp t lowest))
4262
4263;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
4264(defun gnus-group-save-newsrc (&optional force)
4265 "Save the Gnus startup files.
4266If FORCE, force saving whether it is necessary or not."
4267 (interactive "P")
4268 (gnus-save-newsrc-file force))
4269
4270(defun gnus-group-restart (&optional arg)
4271 "Force Gnus to read the .newsrc file."
4272 (interactive "P")
4273 (when (gnus-yes-or-no-p
4274 (format "Are you sure you want to restart Gnus? "))
4275 (gnus-save-newsrc-file)
4276 (gnus-clear-system)
4277 (gnus)))
4278
4279(defun gnus-group-read-init-file ()
4280 "Read the Gnus elisp init file."
4281 (interactive)
a8151ef7
LMI		 4282 (gnus-read-init-file)
4283 (gnus-message 5 "Read %s" gnus-init-file))
eec82323
LMI		 4284
4285(defun gnus-group-check-bogus-groups (&optional silent)
4286 "Check bogus newsgroups.
4287If given a prefix, don't ask for confirmation before removing a bogus
4288group."
4289 (interactive "P")
4290 (gnus-check-bogus-newsgroups (and (not silent) (not gnus-expert-user)))
4291 (gnus-group-list-groups))
4292
a8151ef7
LMI		 4293(defun gnus-group-find-new-groups (&optional arg)
4294 "Search for new groups and add them.
54cf8092 4295Each new group will be treated with `gnus-subscribe-newsgroup-method'.
6748645f
LMI		 4296With 1 C-u, use the `ask-server' method to query the server for new
4297groups.
4298With 2 C-u's, use most complete method possible to query the server
4299for new groups, and subscribe the new groups as zombies."
4300 (interactive "p")
4301 (gnus-find-new-newsgroups (or arg 1))
a8151ef7 4302 (gnus-group-list-groups))
6748645f 4303
eec82323
LMI		 4304(defun gnus-group-edit-global-kill (&optional article group)
4305 "Edit the global kill file.
4306If GROUP, edit that local kill file instead."
4307 (interactive "P")
4308 (setq gnus-current-kill-article article)
4309 (gnus-kill-file-edit-file group)
4310 (gnus-message
4311 6
4312 (substitute-command-keys
4313 (format "Editing a %s kill file (Type \\[gnus-kill-file-exit] to exit)"
4314 (if group "local" "global")))))
4315
4316(defun gnus-group-edit-local-kill (article group)
4317 "Edit a local kill file."
4318 (interactive (list nil (gnus-group-group-name)))
4319 (gnus-group-edit-global-kill article group))
4320
4321(defun gnus-group-force-update ()
4322 "Update `.newsrc' file."
4323 (interactive)
4324 (gnus-save-newsrc-file))
4325
23f87bed
MB		 4326(defvar gnus-backlog-articles)
4327
eec82323
LMI		 4328(defun gnus-group-suspend ()
4329 "Suspend the current Gnus session.
4330In fact, cleanup buffers except for group mode buffer.
23f87bed 4331The hook `gnus-suspend-gnus-hook' is called before actually suspending."
eec82323 4332 (interactive)
6748645f 4333 (gnus-run-hooks 'gnus-suspend-gnus-hook)
23f87bed 4334 (gnus-offer-save-summaries)
eec82323 4335 ;; Kill Gnus buffers except for group mode buffer.
6748645f 4336 (let ((group-buf (get-buffer gnus-group-buffer)))
01c52d31
MB		 4337 (dolist (buf (gnus-buffers))
4338 (unless (or (eq buf group-buf)
4339 (eq buf gnus-dribble-buffer)
4340 (with-current-buffer buf
4341 (eq major-mode 'message-mode)))
4342 (gnus-kill-buffer buf)))
23f87bed 4343 (setq gnus-backlog-articles nil)
eec82323
LMI		 4344 (gnus-kill-gnus-frames)
4345 (when group-buf
eec82323
LMI		 4346 (bury-buffer group-buf)
4347 (delete-windows-on group-buf t))))
4348
4349(defun gnus-group-clear-dribble ()
4350 "Clear all information from the dribble buffer."
4351 (interactive)
4352 (gnus-dribble-clear)
4353 (gnus-message 7 "Cleared dribble buffer"))
4354
4355(defun gnus-group-exit ()
4356 "Quit reading news after updating .newsrc.eld and .newsrc.
4357The hook `gnus-exit-gnus-hook' is called before actually exiting."
4358 (interactive)
4359 (when
4360 (or noninteractive ;For gnus-batch-kill
4361 (not gnus-interactive-exit) ;Without confirmation
4362 gnus-expert-user
4363 (gnus-y-or-n-p "Are you sure you want to quit reading news? "))
6748645f 4364 (gnus-run-hooks 'gnus-exit-gnus-hook)
eec82323
LMI		 4365 ;; Offer to save data from non-quitted summary buffers.
4366 (gnus-offer-save-summaries)
4367 ;; Save the newsrc file(s).
4368 (gnus-save-newsrc-file)
4369 ;; Kill-em-all.
4370 (gnus-close-backends)
4371 ;; Reset everything.
4372 (gnus-clear-system)
4373 ;; Allow the user to do things after cleaning up.
6748645f 4374 (gnus-run-hooks 'gnus-after-exiting-gnus-hook)))
eec82323
LMI		 4375
4376(defun gnus-group-quit ()
4377 "Quit reading news without updating .newsrc.eld or .newsrc.
4378The hook `gnus-exit-gnus-hook' is called before actually exiting."
4379 (interactive)
4380 (when (or noninteractive ;For gnus-batch-kill
4381 (zerop (buffer-size))
4382 (not (gnus-server-opened gnus-select-method))
4383 gnus-expert-user
4384 (not gnus-current-startup-file)
4385 (gnus-yes-or-no-p
4386 (format "Quit reading news without saving %s? "
4387 (file-name-nondirectory gnus-current-startup-file))))
6748645f 4388 (gnus-run-hooks 'gnus-exit-gnus-hook)
eec82323 4389 (gnus-configure-windows 'group t)
23f87bed 4390 (when (and (gnus-buffer-live-p gnus-dribble-buffer)
765abcce 4391 (not (zerop (with-current-buffer gnus-dribble-buffer
23f87bed
MB		 4392 (buffer-size)))))
4393 (gnus-dribble-enter
4394 ";;; Gnus was exited on purpose without saving the .newsrc files."))
eec82323
LMI		 4395 (gnus-dribble-save)
4396 (gnus-close-backends)
4397 (gnus-clear-system)
4398 (gnus-kill-buffer gnus-group-buffer)
4399 ;; Allow the user to do things after cleaning up.
6748645f 4400 (gnus-run-hooks 'gnus-after-exiting-gnus-hook)))
eec82323
LMI		 4401
4402(defun gnus-group-describe-briefly ()
4403 "Give a one line description of the group mode commands."
4404 (interactive)
4405 (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")))
4406
4407(defun gnus-group-browse-foreign-server (method)
4408 "Browse a foreign news server.
4409If called interactively, this function will ask for a select method
4410 (nntp, nnspool, etc.) and a server address (eg. nntp.some.where).
4411If not, METHOD should be a list where the first element is the method
4412and the second element is the address."
4413 (interactive
4414 (list (let ((how (completing-read
23f87bed 4415 "Which back end: "
eec82323
LMI		 4416 (append gnus-valid-select-methods gnus-server-alist)
4417 nil t (cons "nntp" 0) 'gnus-method-history)))
23f87bed 4418 ;; We either got a back end name or a virtual server name.
eec82323
LMI		 4419 ;; If the first, we also need an address.
4420 (if (assoc how gnus-valid-select-methods)
4421 (list (intern how)
4422 ;; Suggested by mapjph@bath.ac.uk.
4423 (completing-read
4424 "Address: "
01c52d31 4425 (mapcar 'list gnus-secondary-servers)))
eec82323
LMI		 4426 ;; We got a server name.
4427 how))))
4428 (gnus-browse-foreign-server method))
4429
4430(defun gnus-group-set-info (info &optional method-only-group part)
16409b0b 4431 (when (or info part)
01c52d31
MB		 4432 (let* ((entry (gnus-group-entry
4433 (or method-only-group (gnus-info-group info))))
16409b0b
GM		 4434 (part-info info)
4435 (info (if method-only-group (nth 2 entry) info))
4436 method)
4437 (when method-only-group
4438 (unless entry
4439 (error "Trying to change non-existent group %s" method-only-group))
4440 ;; We have received parts of the actual group info - either the
c30ba437 4441 ;; select method or the group parameters. We first check
16409b0b
GM		 4442 ;; whether we have to extend the info, and if so, do that.
4443 (let ((len (length info))
4444 (total (if (eq part 'method) 5 6)))
4445 (when (< len total)
4446 (setcdr (nthcdr (1- len) info)
4447 (make-list (- total len) nil)))
4448 ;; Then we enter the new info.
4449 (setcar (nthcdr (1- total) info) part-info)))
eec82323 4450 (unless entry
16409b0b 4451 ;; This is a new group, so we just create it.
765abcce 4452 (with-current-buffer gnus-group-buffer
16409b0b
GM		 4453 (setq method (gnus-info-method info))
4454 (when (gnus-server-equal method "native")
4455 (setq method nil))
765abcce 4456 (with-current-buffer gnus-group-buffer
16409b0b
GM		 4457 (if method
4458 ;; It's a foreign group...
4459 (gnus-group-make-group
4460 (gnus-group-real-name (gnus-info-group info))
4461 (if (stringp method) method
4462 (prin1-to-string (car method)))
4463 (and (consp method)
01c52d31
MB		 4464 (nth 1 (gnus-info-method info)))
4465 nil t)
16409b0b 4466 ;; It's a native group.
01c52d31 4467 (gnus-group-make-group (gnus-info-group info) nil nil nil t)))
16409b0b
GM		 4468 (gnus-message 6 "Note: New group created")
4469 (setq entry
01c52d31
MB		 4470 (gnus-group-entry (gnus-group-prefixed-name
4471 (gnus-group-real-name (gnus-info-group info))
4472 (or (gnus-info-method info) gnus-select-method))))))
16409b0b
GM		 4473 ;; Whether it was a new group or not, we now have the entry, so we
4474 ;; can do the update.
4475 (if entry
4476 (progn
4477 (setcar (nthcdr 2 entry) info)
4478 (when (and (not (eq (car entry) t))
4479 (gnus-active (gnus-info-group info)))
23f87bed
MB		 4480 (setcar entry (length
4481 (gnus-list-of-unread-articles (car info))))))
16409b0b 4482 (error "No such group: %s" (gnus-info-group info))))))
eec82323
LMI		 4483
4484(defun gnus-group-set-method-info (group select-method)
4485 (gnus-group-set-info select-method group 'method))
4486
4487(defun gnus-group-set-params-info (group params)
4488 (gnus-group-set-info params group 'params))
4489
4490(defun gnus-add-marked-articles (group type articles &optional info force)
4491 ;; Add ARTICLES of TYPE to the info of GROUP.
16409b0b 4492 ;; If INFO is non-nil, use that info. If FORCE is non-nil, don't
eec82323
LMI		 4493 ;; add, but replace marked articles of TYPE with ARTICLES.
4494 (let ((info (or info (gnus-get-info group)))
eec82323
LMI		 4495 marked m)
4496 (or (not info)
4497 (and (not (setq marked (nthcdr 3 info)))
4498 (or (null articles)
4499 (setcdr (nthcdr 2 info)
4500 (list (list (cons type (gnus-compress-sequence
4501 articles t)))))))
4502 (and (not (setq m (assq type (car marked))))
4503 (or (null articles)
4504 (setcar marked
4505 (cons (cons type (gnus-compress-sequence articles t) )
4506 (car marked)))))
4507 (if force
4508 (if (null articles)
4509 (setcar (nthcdr 3 info)
6748645f 4510 (gnus-delete-alist type (car marked)))
eec82323
LMI		 4511 (setcdr m (gnus-compress-sequence articles t)))
4512 (setcdr m (gnus-compress-sequence
4513 (sort (nconc (gnus-uncompress-range (cdr m))
4514 (copy-sequence articles)) '<) t))))))
4515
23f87bed
MB		 4516(defun gnus-add-mark (group mark article)
4517 "Mark ARTICLE in GROUP with MARK, whether the group is displayed or not."
4518 (let ((buffer (gnus-summary-buffer-name group)))
4519 (if (gnus-buffer-live-p buffer)
765abcce 4520 (with-current-buffer (get-buffer buffer)
23f87bed
MB		 4521 (gnus-summary-add-mark article mark))
4522 (gnus-add-marked-articles group (cdr (assq mark gnus-article-mark-lists))
4523 (list article)))))
4524
eec82323
LMI		 4525;;;
4526;;; Group timestamps
4527;;;
4528
4529(defun gnus-group-set-timestamp ()
4530 "Change the timestamp of the current group to the current time.
4531This function can be used in hooks like `gnus-select-group-hook'
4532or `gnus-group-catchup-group-hook'."
4533 (when gnus-newsgroup-name
4534 (let ((time (current-time)))
4535 (setcdr (cdr time) nil)
4536 (gnus-group-set-parameter gnus-newsgroup-name 'timestamp time))))
4537
4538(defsubst gnus-group-timestamp (group)
4539 "Return the timestamp for GROUP."
6748645f 4540 (gnus-group-get-parameter group 'timestamp t))
eec82323
LMI		 4541
4542(defun gnus-group-timestamp-delta (group)
4543 "Return the offset in seconds from the timestamp for GROUP to the current time, as a floating point number."
4544 (let* ((time (or (gnus-group-timestamp group)
16409b0b 4545 (list 0 0)))
23f87bed 4546 (delta (subtract-time (current-time) time)))
eec82323
LMI		 4547 (+ (* (nth 0 delta) 65536.0)
4548 (nth 1 delta))))
4549
4550(defun gnus-group-timestamp-string (group)
4551 "Return a string of the timestamp for GROUP."
4552 (let ((time (gnus-group-timestamp group)))
4553 (if (not time)
4554 ""
4555 (gnus-time-iso8601 time))))
4556
16409b0b
GM		 4557(defun gnus-group-list-cached (level &optional lowest)
4558 "List all groups with cached articles.
4559If the prefix LEVEL is non-nil, it should be a number that says which
4560level to cut off listing groups.
4561If LOWEST, don't list groups with level lower than LOWEST.
4562
4563This command may read the active file."
4564 (interactive "P")
4565 (when level
4566 (setq level (prefix-numeric-value level)))
4567 (when (or (not level) (>= level gnus-level-zombie))
4568 (gnus-cache-open))
23f87bed
MB		 4569 (funcall gnus-group-prepare-function
4570 (or level gnus-level-subscribed)
4571 #'(lambda (info)
4572 (let ((marks (gnus-info-marks info)))
4573 (assq 'cache marks)))
4574 lowest
4575 #'(lambda (group)
4576 (or (gnus-gethash group
4577 gnus-cache-active-hashtb)
4578 ;; Cache active file might use "."
4579 ;; instead of ":".
4580 (gnus-gethash
4581 (mapconcat 'identity
4582 (split-string group ":")
4583 ".")
4584 gnus-cache-active-hashtb))))
16409b0b
GM		 4585 (goto-char (point-min))
4586 (gnus-group-position-point))
4587
4588(defun gnus-group-list-dormant (level &optional lowest)
4589 "List all groups with dormant articles.
4590If the prefix LEVEL is non-nil, it should be a number that says which
4591level to cut off listing groups.
4592If LOWEST, don't list groups with level lower than LOWEST.
4593
4594This command may read the active file."
4595 (interactive "P")
4596 (when level
4597 (setq level (prefix-numeric-value level)))
4598 (when (or (not level) (>= level gnus-level-zombie))
4599 (gnus-cache-open))
23f87bed
MB		 4600 (funcall gnus-group-prepare-function
4601 (or level gnus-level-subscribed)
4602 #'(lambda (info)
4603 (let ((marks (gnus-info-marks info)))
4604 (assq 'dormant marks)))
4605 lowest
4606 'ignore)
16409b0b
GM		 4607 (goto-char (point-min))
4608 (gnus-group-position-point))
4609
23f87bed
MB		 4610(defun gnus-group-listed-groups ()
4611 "Return a list of listed groups."
4612 (let (point groups)
4613 (goto-char (point-min))
4614 (while (setq point (text-property-not-all (point) (point-max)
4615 'gnus-group nil))
4616 (goto-char point)
4617 (push (symbol-name (get-text-property point 'gnus-group)) groups)
4618 (forward-char 1))
4619 groups))
4620
4621(defun gnus-group-list-plus (&optional args)
4622 "List groups plus the current selection."
4623 (interactive "P")
4624 (let ((gnus-group-listed-groups (gnus-group-listed-groups))
4625 (gnus-group-list-mode gnus-group-list-mode) ;; Save it.
4626 func)
4627 (push last-command-event unread-command-events)
4628 (if (featurep 'xemacs)
4629 (push (make-event 'key-press '(key ?A)) unread-command-events)
4630 (push ?A unread-command-events))
4631 (let (gnus-pick-mode keys)
4632 (setq keys (if (featurep 'xemacs)
4633 (events-to-keys (read-key-sequence nil))
4634 (read-key-sequence nil)))
4635 (setq func (lookup-key (current-local-map) keys)))
4636 (if (or (not func)
4637 (numberp func))
4638 (ding)
4639 (call-interactively func))))
4640
4641(defun gnus-group-list-flush (&optional args)
4642 "Flush groups from the current selection."
4643 (interactive "P")
4644 (let ((gnus-group-list-option 'flush))
4645 (gnus-group-list-plus args)))
4646
4647(defun gnus-group-list-limit (&optional args)
4648 "List groups limited within the current selection."
4649 (interactive "P")
4650 (let ((gnus-group-list-option 'limit))
4651 (gnus-group-list-plus args)))
4652
4653(defun gnus-group-mark-article-read (group article)
4654 "Mark ARTICLE read."
4655 (let ((buffer (gnus-summary-buffer-name group))
4656 (mark gnus-read-mark)
4657 active n)
4658 (if (get-buffer buffer)
4659 (with-current-buffer buffer
4660 (setq active gnus-newsgroup-active)
4661 (gnus-activate-group group)
4662 (when gnus-newsgroup-prepared
4663 (when (and gnus-newsgroup-auto-expire
4664 (memq mark gnus-auto-expirable-marks))
4665 (setq mark gnus-expirable-mark))
4666 (setq mark (gnus-request-update-mark
4667 group article mark))
4668 (gnus-mark-article-as-read article mark)
4669 (setq gnus-newsgroup-active (gnus-active group))
4670 (when active
4671 (setq n (1+ (cdr active)))
4672 (while (<= n (cdr gnus-newsgroup-active))
4673 (unless (eq n article)
4674 (push n gnus-newsgroup-unselected))
4675 (setq n (1+ n)))
4676 (setq gnus-newsgroup-unselected
4677 (nreverse gnus-newsgroup-unselected)))))
4678 (gnus-activate-group group)
4679 (gnus-group-make-articles-read group (list article))
4680 (when (gnus-group-auto-expirable-p group)
4681 (gnus-add-marked-articles
4682 group 'expire (list article))))))
4683
01c52d31
MB		 4684
4685;;;
4686;;; Group compaction. -- dvl
4687;;;
4688
4689(defun gnus-group-compact-group (group)
4690 "Compact the current group.
4691Compaction means removing gaps between article numbers. Hence, this
4692operation is only meaningful for back ends using one file per article
4693\(e.g. nnml).
4694
4695Note: currently only implemented in nnml."
4696 (interactive (list (gnus-group-group-name)))
4697 (unless group
4698 (error "No group to compact"))
4699 (unless (gnus-check-backend-function 'request-compact-group group)
4700 (error "This back end does not support group compaction"))
4701 (let ((group-decoded (gnus-group-decoded-name group)))
4702 (gnus-message 6 "\
4703Compacting group %s... (this may take a long time)"
4704 group-decoded)
4705 (prog1
4706 (if (not (gnus-request-compact-group group))
4707 (gnus-error 3 "Couldn't compact group %s" group-decoded)
4708 (gnus-message 6 "Compacting group %s...done" group-decoded)
4709 t)
4710 ;; Invalidate the "original article" buffer which might be out of date.
4711 ;; #### NOTE: Yes, this might be a bit rude, but since compaction
4712 ;; #### will not happen very often, I think this is acceptable.
4713 (let ((original (get-buffer gnus-original-article-buffer)))
4714 (and original (gnus-kill-buffer original)))
4715 ;; Update the group line to reflect new information (art number etc).
4716 (gnus-group-update-group-line))))
4717
eec82323
LMI		 4718(provide 'gnus-group)
4719
4720;;; gnus-group.el ends here
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