Add 2009 to copyright years.
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
CommitLineData
eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
e84b4b86
TTN
2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
ae940284 4;; 2005, 2006, 2007, 2008, 2009 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
01ccbb85 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
d09ae6ca
GM
28;; For Emacs < 22.2.
29(eval-and-compile
30 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
23f87bed 31(eval-when-compile
9efa445f
DN
32 (require 'cl))
33
34(defvar tool-bar-mode)
35(defvar gnus-tmp-header)
5ab7173c 36
eec82323
LMI
37(require 'gnus)
38(require 'gnus-group)
39(require 'gnus-spec)
40(require 'gnus-range)
41(require 'gnus-int)
42(require 'gnus-undo)
6748645f 43(require 'gnus-util)
18c06a99 44(require 'gmm-utils)
16409b0b 45(require 'mm-decode)
08c9a385 46(require 'nnoo)
23f87bed 47
6748645f 48(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 49(autoload 'gnus-cache-write-active "gnus-cache")
23f87bed
MB
50(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
51(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
531e5812 52(autoload 'gnus-pick-line-number "gnus-salt" nil t)
08c9a385 53(autoload 'mm-uu-dissect "mm-uu")
23f87bed
MB
54(autoload 'gnus-article-outlook-deuglify-article "deuglify"
55 "Deuglify broken Outlook (Express) articles and redisplay."
56 t)
57(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
58(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
59(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
eec82323
LMI
60
61(defcustom gnus-kill-summary-on-exit t
62 "*If non-nil, kill the summary buffer when you exit from it.
63If nil, the summary will become a \"*Dead Summary*\" buffer, and
64it will be killed sometime later."
65 :group 'gnus-summary-exit
66 :type 'boolean)
67
01c52d31
MB
68(defcustom gnus-summary-next-group-on-exit t
69 "If non-nil, go to the next unread newsgroup on summary exit.
70See `gnus-group-goto-unread'."
71 :link '(custom-manual "(gnus)Group Maneuvering")
72 :group 'gnus-summary-exit
330f707b 73 :version "23.1" ;; No Gnus
01c52d31
MB
74 :type 'boolean)
75
eec82323
LMI
76(defcustom gnus-fetch-old-headers nil
77 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
01c52d31
MB
78If an unread article in the group refers to an older, already
79read (or just marked as read) article, the old article will not
80normally be displayed in the Summary buffer. If this variable is
81t, Gnus will attempt to grab the headers to the old articles, and
82thereby build complete threads. If it has the value `some', all
83old headers will be fetched but only enough headers to connect
84otherwise loose threads will be displayed. This variable can
85also be a number. In that case, no more than that number of old
86headers will be fetched. If it has the value `invisible', all
6748645f 87old headers will be fetched, but none will be displayed.
eec82323 88
01c52d31
MB
89The server has to support NOV for any of this to work.
90
91This feature can seriously impact performance it ignores all
f394fa25
MB
92locally cached header entries. Setting it to t for groups for a
93server that doesn't expire articles (such as news.gmane.org),
94leads to very slow summary generation."
eec82323
LMI
95 :group 'gnus-thread
96 :type '(choice (const :tag "off" nil)
1232b9cb 97 (const :tag "on" t)
eec82323 98 (const some)
1232b9cb 99 (const invisible)
eec82323
LMI
100 number
101 (sexp :menu-tag "other" t)))
102
01c52d31 103(defcustom gnus-refer-thread-limit 500
6748645f
LMI
104 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
105If t, fetch all the available old headers."
106 :group 'gnus-thread
107 :type '(choice number
108 (sexp :menu-tag "other" t)))
109
eec82323
LMI
110(defcustom gnus-summary-make-false-root 'adopt
111 "*nil means that Gnus won't gather loose threads.
112If the root of a thread has expired or been read in a previous
113session, the information necessary to build a complete thread has been
114lost. Instead of having many small sub-threads from this original thread
115scattered all over the summary buffer, Gnus can gather them.
116
117If non-nil, Gnus will try to gather all loose sub-threads from an
118original thread into one large thread.
119
120If this variable is non-nil, it should be one of `none', `adopt',
121`dummy' or `empty'.
122
123If this variable is `none', Gnus will not make a false root, but just
124present the sub-threads after another.
125If this variable is `dummy', Gnus will create a dummy root that will
126have all the sub-threads as children.
127If this variable is `adopt', Gnus will make one of the \"children\"
128the parent and mark all the step-children as such.
129If this variable is `empty', the \"children\" are printed with empty
01ccbb85 130subject fields. (Or rather, they will be printed with a string
eec82323
LMI
131given by the `gnus-summary-same-subject' variable.)"
132 :group 'gnus-thread
133 :type '(choice (const :tag "off" nil)
134 (const none)
135 (const dummy)
136 (const adopt)
137 (const empty)))
138
23f87bed
MB
139(defcustom gnus-summary-make-false-root-always nil
140 "Always make a false dummy root."
bf247b6e 141 :version "22.1"
23f87bed
MB
142 :group 'gnus-thread
143 :type 'boolean)
144
eec82323
LMI
145(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
146 "*A regexp to match subjects to be excluded from loose thread gathering.
147As loose thread gathering is done on subjects only, that means that
148there can be many false gatherings performed. By rooting out certain
149common subjects, gathering might become saner."
150 :group 'gnus-thread
151 :type 'regexp)
152
153(defcustom gnus-summary-gather-subject-limit nil
154 "*Maximum length of subject comparisons when gathering loose threads.
155Use nil to compare full subjects. Setting this variable to a low
156number will help gather threads that have been corrupted by
157newsreaders chopping off subject lines, but it might also mean that
158unrelated articles that have subject that happen to begin with the
159same few characters will be incorrectly gathered.
160
161If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
162comparing subjects."
163 :group 'gnus-thread
164 :type '(choice (const :tag "off" nil)
165 (const fuzzy)
166 (sexp :menu-tag "on" t)))
167
6748645f
LMI
168(defcustom gnus-simplify-subject-functions nil
169 "List of functions taking a string argument that simplify subjects.
170The functions are applied recursively.
171
23f87bed
MB
172Useful functions to put in this list include:
173`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
174`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
6748645f
LMI
175 :group 'gnus-thread
176 :type '(repeat function))
177
eec82323 178(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 179 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
eec82323
LMI
180 :group 'gnus-thread
181 :type '(choice (const :tag "off" nil)
182 regexp))
183
184(defcustom gnus-build-sparse-threads nil
185 "*If non-nil, fill in the gaps in threads.
186If `some', only fill in the gaps that are needed to tie loose threads
187together. If `more', fill in all leaf nodes that Gnus can find. If
188non-nil and non-`some', fill in all gaps that Gnus manages to guess."
189 :group 'gnus-thread
190 :type '(choice (const :tag "off" nil)
191 (const some)
192 (const more)
193 (sexp :menu-tag "all" t)))
194
195(defcustom gnus-summary-thread-gathering-function
196 'gnus-gather-threads-by-subject
6748645f 197 "*Function used for gathering loose threads.
eec82323
LMI
198There are two pre-defined functions: `gnus-gather-threads-by-subject',
199which only takes Subjects into consideration; and
200`gnus-gather-threads-by-references', which compared the References
201headers of the articles to find matches."
202 :group 'gnus-thread
22115a9e
RS
203 :type '(radio (function-item gnus-gather-threads-by-subject)
204 (function-item gnus-gather-threads-by-references)
205 (function :tag "other")))
eec82323 206
eec82323
LMI
207(defcustom gnus-summary-same-subject ""
208 "*String indicating that the current article has the same subject as the previous.
209This variable will only be used if the value of
210`gnus-summary-make-false-root' is `empty'."
211 :group 'gnus-summary-format
212 :type 'string)
213
214(defcustom gnus-summary-goto-unread t
16409b0b
GM
215 "*If t, many commands will go to the next unread article.
216This applies to marking commands as well as other commands that
217\"naturally\" select the next article, like, for instance, `SPC' at
218the end of an article.
219
220If nil, the marking commands do NOT go to the next unread article
2642ac8f 221\(they go to the next article instead). If `never', commands that
16409b0b
GM
222usually go to the next unread article, will go to the next article,
223whether it is read or not."
eec82323
LMI
224 :group 'gnus-summary-marks
225 :link '(custom-manual "(gnus)Setting Marks")
226 :type '(choice (const :tag "off" nil)
227 (const never)
228 (sexp :menu-tag "on" t)))
229
230(defcustom gnus-summary-default-score 0
231 "*Default article score level.
232All scores generated by the score files will be added to this score.
233If this variable is nil, scoring will be disabled."
234 :group 'gnus-score-default
235 :type '(choice (const :tag "disable")
236 integer))
237
23f87bed
MB
238(defcustom gnus-summary-default-high-score 0
239 "*Default threshold for a high scored article.
240An article will be highlighted as high scored if its score is greater
241than this score."
bf247b6e 242 :version "22.1"
23f87bed
MB
243 :group 'gnus-score-default
244 :type 'integer)
245
246(defcustom gnus-summary-default-low-score 0
247 "*Default threshold for a low scored article.
248An article will be highlighted as low scored if its score is smaller
249than this score."
bf247b6e 250 :version "22.1"
23f87bed
MB
251 :group 'gnus-score-default
252 :type 'integer)
253
eec82323
LMI
254(defcustom gnus-summary-zcore-fuzz 0
255 "*Fuzziness factor for the zcore in the summary buffer.
256Articles with scores closer than this to `gnus-summary-default-score'
257will not be marked."
258 :group 'gnus-summary-format
259 :type 'integer)
260
261(defcustom gnus-simplify-subject-fuzzy-regexp nil
262 "*Strings to be removed when doing fuzzy matches.
263This can either be a regular expression or list of regular expressions
264that will be removed from subject strings if fuzzy subject
265simplification is selected."
266 :group 'gnus-thread
267 :type '(repeat regexp))
268
269(defcustom gnus-show-threads t
270 "*If non-nil, display threads in summary mode."
271 :group 'gnus-thread
272 :type 'boolean)
273
274(defcustom gnus-thread-hide-subtree nil
275 "*If non-nil, hide all threads initially.
23f87bed 276This can be a predicate specifier which says which threads to hide.
eec82323 277If threads are hidden, you have to run the command
4a2358e9 278`gnus-summary-show-thread' by hand or select an article."
eec82323 279 :group 'gnus-thread
23f87bed
MB
280 :type '(radio (sexp :format "Non-nil\n"
281 :match (lambda (widget value)
282 (not (or (consp value) (functionp value))))
283 :value t)
284 (const nil)
ad136a7c 285 (sexp :tag "Predicate specifier")))
eec82323
LMI
286
287(defcustom gnus-thread-hide-killed t
288 "*If non-nil, hide killed threads automatically."
289 :group 'gnus-thread
290 :type 'boolean)
291
6748645f
LMI
292(defcustom gnus-thread-ignore-subject t
293 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
294If nil, articles that have different subjects from their parents will
295start separate threads."
eec82323
LMI
296 :group 'gnus-thread
297 :type 'boolean)
298
299(defcustom gnus-thread-operation-ignore-subject t
300 "*If non-nil, subjects will be ignored when doing thread commands.
301This affects commands like `gnus-summary-kill-thread' and
302`gnus-summary-lower-thread'.
303
304If this variable is nil, articles in the same thread with different
305subjects will not be included in the operation in question. If this
306variable is `fuzzy', only articles that have subjects that are fuzzily
307equal will be included."
308 :group 'gnus-thread
309 :type '(choice (const :tag "off" nil)
310 (const fuzzy)
311 (sexp :tag "on" t)))
312
313(defcustom gnus-thread-indent-level 4
314 "*Number that says how much each sub-thread should be indented."
315 :group 'gnus-thread
316 :type 'integer)
317
318(defcustom gnus-auto-extend-newsgroup t
319 "*If non-nil, extend newsgroup forward and backward when requested."
320 :group 'gnus-summary-choose
321 :type 'boolean)
322
323(defcustom gnus-auto-select-first t
651408cb
MB
324 "If non-nil, select an article on group entry.
325An article is selected automatically when entering a group
326e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
327`gnus-summary-catchup-and-goto-next-group'.
328
329Which article is selected is controlled by the variable
330`gnus-auto-select-subject'.
23f87bed
MB
331
332If you want to prevent automatic selection of articles in some
333newsgroups, set the variable to nil in `gnus-select-group-hook'."
651408cb
MB
334 ;; Commands include...
335 ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
336 ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
337 ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
eec82323
LMI
338 :group 'gnus-group-select
339 :type '(choice (const :tag "none" nil)
23f87bed
MB
340 (sexp :menu-tag "first" t)))
341
342(defcustom gnus-auto-select-subject 'unread
343 "*Says what subject to place under point when entering a group.
344
345This variable can either be the symbols `first' (place point on the
346first subject), `unread' (place point on the subject line of the first
347unread article), `best' (place point on the subject line of the
348higest-scored article), `unseen' (place point on the subject line of
99b5aab7 349the first unseen article), `unseen-or-unread' (place point on the subject
23f87bed
MB
350line of the first unseen article or, if all article have been seen, on the
351subject line of the first unread article), or a function to be called to
352place point on some subject line."
bf247b6e 353 :version "22.1"
23f87bed
MB
354 :group 'gnus-group-select
355 :type '(choice (const best)
356 (const unread)
357 (const first)
358 (const unseen)
359 (const unseen-or-unread)))
eec82323
LMI
360
361(defcustom gnus-auto-select-next t
362 "*If non-nil, offer to go to the next group from the end of the previous.
363If the value is t and the next newsgroup is empty, Gnus will exit
23f87bed
MB
364summary mode and go back to group mode. If the value is neither nil
365nor t, Gnus will select the following unread newsgroup. In
eec82323
LMI
366particular, if the value is the symbol `quietly', the next unread
367newsgroup will be selected without any confirmation, and if it is
368`almost-quietly', the next group will be selected without any
369confirmation if you are located on the last article in the group.
23f87bed 370Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
eec82323
LMI
371will go to the next group without confirmation."
372 :group 'gnus-summary-maneuvering
373 :type '(choice (const :tag "off" nil)
374 (const quietly)
375 (const almost-quietly)
376 (const slightly-quietly)
377 (sexp :menu-tag "on" t)))
378
379(defcustom gnus-auto-select-same nil
6748645f
LMI
380 "*If non-nil, select the next article with the same subject.
381If there are no more articles with the same subject, go to
382the first unread article."
eec82323
LMI
383 :group 'gnus-summary-maneuvering
384 :type 'boolean)
385
01c52d31
MB
386(defcustom gnus-auto-select-on-ephemeral-exit 'next-noselect
387 "What article should be selected after exiting an ephemeral group.
388Valid values include:
389
390`next'
391 Select the next article.
392`next-unread'
393 Select the next unread article.
394`next-noselect'
395 Move the cursor to the next article. This is the default.
396`next-unread-noselect'
397 Move the cursor to the next unread article.
398
399If it has any other value or there is no next (unread) article, the
400article selected before entering to the ephemeral group will appear."
330f707b 401 :version "23.1" ;; No Gnus
01c52d31
MB
402 :group 'gnus-summary-maneuvering
403 :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
404 (const next) (const next-unread)
405 (const next-noselect) (const next-unread-noselect)
406 (sexp :tag "other" :value nil)))
407
23f87bed
MB
408(defcustom gnus-auto-goto-ignores 'unfetched
409 "*Says how to handle unfetched articles when maneuvering.
410
411This variable can either be the symbols nil (maneuver to any
412article), `undownloaded' (maneuvering while unplugged ignores articles
413that have not been fetched), `always-undownloaded' (maneuvering always
414ignores articles that have not been fetched), `unfetched' (maneuvering
415ignores articles whose headers have not been fetched).
416
417NOTE: The list of unfetched articles will always be nil when plugged
418and, when unplugged, a subset of the undownloaded article list."
bf247b6e 419 :version "22.1"
23f87bed
MB
420 :group 'gnus-summary-maneuvering
421 :type '(choice (const :tag "None" nil)
422 (const :tag "Undownloaded when unplugged" undownloaded)
423 (const :tag "Undownloaded" always-undownloaded)
424 (const :tag "Unfetched" unfetched)))
425
eec82323
LMI
426(defcustom gnus-summary-check-current nil
427 "*If non-nil, consider the current article when moving.
428The \"unread\" movement commands will stay on the same line if the
429current article is unread."
430 :group 'gnus-summary-maneuvering
431 :type 'boolean)
432
01c52d31 433(defcustom gnus-auto-center-summary 2
eec82323
LMI
434 "*If non-nil, always center the current summary buffer.
435In particular, if `vertical' do only vertical recentering. If non-nil
436and non-`vertical', do both horizontal and vertical recentering."
437 :group 'gnus-summary-maneuvering
438 :type '(choice (const :tag "none" nil)
439 (const vertical)
16409b0b 440 (integer :tag "height")
eec82323
LMI
441 (sexp :menu-tag "both" t)))
442
23f87bed
MB
443(defvar gnus-auto-center-group t
444 "*If non-nil, always center the group buffer.")
445
eec82323
LMI
446(defcustom gnus-show-all-headers nil
447 "*If non-nil, don't hide any headers."
448 :group 'gnus-article-hiding
449 :group 'gnus-article-headers
450 :type 'boolean)
451
452(defcustom gnus-summary-ignore-duplicates nil
453 "*If non-nil, ignore articles with identical Message-ID headers."
454 :group 'gnus-summary
455 :type 'boolean)
6748645f 456
eec82323
LMI
457(defcustom gnus-single-article-buffer t
458 "*If non-nil, display all articles in the same buffer.
459If nil, each group will get its own article buffer."
460 :group 'gnus-article-various
461 :type 'boolean)
462
463(defcustom gnus-break-pages t
464 "*If non-nil, do page breaking on articles.
465The page delimiter is specified by the `gnus-page-delimiter'
466variable."
467 :group 'gnus-article-various
468 :type 'boolean)
469
eec82323
LMI
470(defcustom gnus-move-split-methods nil
471 "*Variable used to suggest where articles are to be moved to.
23f87bed
MB
472It uses the same syntax as the `gnus-split-methods' variable.
473However, whereas `gnus-split-methods' specifies file names as targets,
474this variable specifies group names."
eec82323 475 :group 'gnus-summary-mail
6748645f
LMI
476 :type '(repeat (choice (list :value (fun) function)
477 (cons :value ("" "") regexp (repeat string))
478 (sexp :value nil))))
eec82323 479
01c52d31
MB
480(defcustom gnus-move-group-prefix-function 'gnus-group-real-prefix
481 "Function used to compute default prefix for article move/copy/etc prompts.
482The function should take one argument, a group name, and return a
483string with the suggested prefix."
484 :group 'gnus-summary-mail
485 :type 'function)
486
e62e7654
MB
487;; FIXME: Although the custom type is `character' for the following variables,
488;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
489
23f87bed 490(defcustom gnus-unread-mark ? ;Whitespace
eec82323
LMI
491 "*Mark used for unread articles."
492 :group 'gnus-summary-marks
493 :type 'character)
494
495(defcustom gnus-ticked-mark ?!
496 "*Mark used for ticked articles."
497 :group 'gnus-summary-marks
498 :type 'character)
499
500(defcustom gnus-dormant-mark ??
501 "*Mark used for dormant articles."
502 :group 'gnus-summary-marks
503 :type 'character)
504
505(defcustom gnus-del-mark ?r
506 "*Mark used for del'd articles."
507 :group 'gnus-summary-marks
508 :type 'character)
509
510(defcustom gnus-read-mark ?R
511 "*Mark used for read articles."
512 :group 'gnus-summary-marks
513 :type 'character)
514
515(defcustom gnus-expirable-mark ?E
516 "*Mark used for expirable articles."
517 :group 'gnus-summary-marks
518 :type 'character)
519
520(defcustom gnus-killed-mark ?K
521 "*Mark used for killed articles."
522 :group 'gnus-summary-marks
523 :type 'character)
524
23f87bed
MB
525(defcustom gnus-spam-mark ?$
526 "*Mark used for spam articles."
bf247b6e 527 :version "22.1"
23f87bed
MB
528 :group 'gnus-summary-marks
529 :type 'character)
530
eec82323 531(defcustom gnus-souped-mark ?F
23f87bed 532 "*Mark used for souped articles."
eec82323
LMI
533 :group 'gnus-summary-marks
534 :type 'character)
535
536(defcustom gnus-kill-file-mark ?X
537 "*Mark used for articles killed by kill files."
538 :group 'gnus-summary-marks
539 :type 'character)
540
541(defcustom gnus-low-score-mark ?Y
542 "*Mark used for articles with a low score."
543 :group 'gnus-summary-marks
544 :type 'character)
545
546(defcustom gnus-catchup-mark ?C
547 "*Mark used for articles that are caught up."
548 :group 'gnus-summary-marks
549 :type 'character)
550
551(defcustom gnus-replied-mark ?A
552 "*Mark used for articles that have been replied to."
553 :group 'gnus-summary-marks
554 :type 'character)
555
23f87bed
MB
556(defcustom gnus-forwarded-mark ?F
557 "*Mark used for articles that have been forwarded."
bf247b6e 558 :version "22.1"
23f87bed
MB
559 :group 'gnus-summary-marks
560 :type 'character)
561
562(defcustom gnus-recent-mark ?N
563 "*Mark used for articles that are recent."
bf247b6e 564 :version "22.1"
23f87bed
MB
565 :group 'gnus-summary-marks
566 :type 'character)
567
eec82323
LMI
568(defcustom gnus-cached-mark ?*
569 "*Mark used for articles that are in the cache."
570 :group 'gnus-summary-marks
571 :type 'character)
572
573(defcustom gnus-saved-mark ?S
23f87bed
MB
574 "*Mark used for articles that have been saved."
575 :group 'gnus-summary-marks
576 :type 'character)
577
578(defcustom gnus-unseen-mark ?.
579 "*Mark used for articles that haven't been seen."
bf247b6e 580 :version "22.1"
23f87bed
MB
581 :group 'gnus-summary-marks
582 :type 'character)
583
584(defcustom gnus-no-mark ? ;Whitespace
585 "*Mark used for articles that have no other secondary mark."
bf247b6e 586 :version "22.1"
eec82323
LMI
587 :group 'gnus-summary-marks
588 :type 'character)
589
590(defcustom gnus-ancient-mark ?O
591 "*Mark used for ancient articles."
592 :group 'gnus-summary-marks
593 :type 'character)
594
595(defcustom gnus-sparse-mark ?Q
596 "*Mark used for sparsely reffed articles."
597 :group 'gnus-summary-marks
598 :type 'character)
599
600(defcustom gnus-canceled-mark ?G
601 "*Mark used for canceled articles."
602 :group 'gnus-summary-marks
603 :type 'character)
604
605(defcustom gnus-duplicate-mark ?M
606 "*Mark used for duplicate articles."
607 :group 'gnus-summary-marks
608 :type 'character)
609
23f87bed 610(defcustom gnus-undownloaded-mark ?-
6748645f 611 "*Mark used for articles that weren't downloaded."
bf247b6e 612 :version "22.1"
6748645f
LMI
613 :group 'gnus-summary-marks
614 :type 'character)
615
23f87bed
MB
616(defcustom gnus-downloaded-mark ?+
617 "*Mark used for articles that were downloaded."
618 :group 'gnus-summary-marks
619 :type 'character)
620
6748645f
LMI
621(defcustom gnus-downloadable-mark ?%
622 "*Mark used for articles that are to be downloaded."
623 :group 'gnus-summary-marks
624 :type 'character)
625
626(defcustom gnus-unsendable-mark ?=
627 "*Mark used for articles that won't be sent."
628 :group 'gnus-summary-marks
629 :type 'character)
630
eec82323
LMI
631(defcustom gnus-score-over-mark ?+
632 "*Score mark used for articles with high scores."
633 :group 'gnus-summary-marks
634 :type 'character)
635
636(defcustom gnus-score-below-mark ?-
637 "*Score mark used for articles with low scores."
638 :group 'gnus-summary-marks
639 :type 'character)
640
23f87bed 641(defcustom gnus-empty-thread-mark ? ;Whitespace
eec82323
LMI
642 "*There is no thread under the article."
643 :group 'gnus-summary-marks
644 :type 'character)
645
646(defcustom gnus-not-empty-thread-mark ?=
647 "*There is a thread under the article."
648 :group 'gnus-summary-marks
649 :type 'character)
650
651(defcustom gnus-view-pseudo-asynchronously nil
652 "*If non-nil, Gnus will view pseudo-articles asynchronously."
653 :group 'gnus-extract-view
654 :type 'boolean)
655
16409b0b
GM
656(defcustom gnus-auto-expirable-marks
657 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
658 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
659 gnus-souped-mark gnus-duplicate-mark)
660 "*The list of marks converted into expiration if a group is auto-expirable."
58e39d05 661 :version "21.1"
16409b0b
GM
662 :group 'gnus-summary
663 :type '(repeat character))
664
665(defcustom gnus-inhibit-user-auto-expire t
666 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 667 :version "21.1"
16409b0b
GM
668 :group 'gnus-summary
669 :type 'boolean)
670
eec82323
LMI
671(defcustom gnus-view-pseudos nil
672 "*If `automatic', pseudo-articles will be viewed automatically.
673If `not-confirm', pseudos will be viewed automatically, and the user
674will not be asked to confirm the command."
675 :group 'gnus-extract-view
676 :type '(choice (const :tag "off" nil)
677 (const automatic)
678 (const not-confirm)))
679
680(defcustom gnus-view-pseudos-separately t
681 "*If non-nil, one pseudo-article will be created for each file to be viewed.
682If nil, all files that use the same viewing command will be given as a
683list of parameters to that command."
684 :group 'gnus-extract-view
685 :type 'boolean)
686
687(defcustom gnus-insert-pseudo-articles t
688 "*If non-nil, insert pseudo-articles when decoding articles."
689 :group 'gnus-extract-view
690 :type 'boolean)
691
692(defcustom gnus-summary-dummy-line-format
23f87bed 693 " %(: :%) %S\n"
eec82323
LMI
694 "*The format specification for the dummy roots in the summary buffer.
695It works along the same lines as a normal formatting string,
696with some simple extensions.
697
23f87bed
MB
698%S The subject
699
700General format specifiers can also be used.
701See `(gnus)Formatting Variables'."
702 :link '(custom-manual "(gnus)Formatting Variables")
eec82323
LMI
703 :group 'gnus-threading
704 :type 'string)
705
16409b0b 706(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
eec82323
LMI
707 "*The format specification for the summary mode line.
708It works along the same lines as a normal formatting string,
709with some simple extensions:
710
711%G Group name
712%p Unprefixed group name
713%A Current article number
6748645f 714%z Current article score
eec82323
LMI
715%V Gnus version
716%U Number of unread articles in the group
717%e Number of unselected articles in the group
718%Z A string with unread/unselected article counts
719%g Shortish group name
720%S Subject of the current article
721%u User-defined spec
722%s Current score file name
723%d Number of dormant articles
724%r Number of articles that have been marked as read in this session
725%E Number of articles expunged by the score files"
726 :group 'gnus-summary-format
727 :type 'string)
728
16409b0b
GM
729(defcustom gnus-list-identifiers nil
730 "Regexp that matches list identifiers to be removed from subject.
731This can also be a list of regexps."
58e39d05 732 :version "21.1"
16409b0b
GM
733 :group 'gnus-summary-format
734 :group 'gnus-article-hiding
735 :type '(choice (const :tag "none" nil)
736 (regexp :value ".*")
737 (repeat :value (".*") regexp)))
738
eec82323
LMI
739(defcustom gnus-summary-mark-below 0
740 "*Mark all articles with a score below this variable as read.
741This variable is local to each summary buffer and usually set by the
742score file."
743 :group 'gnus-score-default
744 :type 'integer)
745
01c52d31
MB
746(defun gnus-widget-reversible-match (widget value)
747 "Ignoring WIDGET, convert VALUE to internal form.
748VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
749 ;; (debug value)
750 (or (symbolp value)
751 (and (listp value)
752 (eq (length value) 2)
753 (eq (nth 0 value) 'not)
754 (symbolp (nth 1 value)))))
755
756(defun gnus-widget-reversible-to-internal (widget value)
757 "Ignoring WIDGET, convert VALUE to internal form.
758VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
759FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
760 ;; (debug value)
761 (if (atom value)
762 (list value nil)
763 (list (nth 1 value) t)))
764
765(defun gnus-widget-reversible-to-external (widget value)
766 "Ignoring WIDGET, convert VALUE to external form.
767VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
768\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
769 ;; (debug value)
770 (if (nth 1 value)
771 (list 'not (nth 0 value))
772 (nth 0 value)))
773
774(define-widget 'gnus-widget-reversible 'group
775 "A `group' that convert values."
776 :match 'gnus-widget-reversible-match
777 :value-to-internal 'gnus-widget-reversible-to-internal
778 :value-to-external 'gnus-widget-reversible-to-external)
779
eec82323
LMI
780(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
781 "*List of functions used for sorting articles in the summary buffer.
23f87bed
MB
782
783Each function takes two articles and returns non-nil if the first
784article should be sorted before the other. If you use more than one
785function, the primary sort function should be the last. You should
786probably always include `gnus-article-sort-by-number' in the list of
787sorting functions -- preferably first. Also note that sorting by date
788is often much slower than sorting by number, and the sorting order is
789very similar. (Sorting by date means sorting by the time the message
790was sent, sorting by number means sorting by arrival time.)
791
01c52d31
MB
792Each item can also be a list `(not F)' where F is a function;
793this reverses the sort order.
794
23f87bed
MB
795Ready-made functions include `gnus-article-sort-by-number',
796`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
797`gnus-article-sort-by-date', `gnus-article-sort-by-random'
798and `gnus-article-sort-by-score'.
799
800When threading is turned on, the variable `gnus-thread-sort-functions'
801controls how articles are sorted."
eec82323 802 :group 'gnus-summary-sort
01c52d31
MB
803 :type '(repeat (gnus-widget-reversible
804 (choice (function-item gnus-article-sort-by-number)
805 (function-item gnus-article-sort-by-author)
806 (function-item gnus-article-sort-by-subject)
807 (function-item gnus-article-sort-by-date)
808 (function-item gnus-article-sort-by-score)
809 (function-item gnus-article-sort-by-random)
810 (function :tag "other"))
811 (boolean :tag "Reverse order"))))
812
eec82323
LMI
813
814(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
815 "*List of functions used for sorting threads in the summary buffer.
816By default, threads are sorted by article number.
817
23f87bed
MB
818Each function takes two threads and returns non-nil if the first
819thread should be sorted before the other. If you use more than one
820function, the primary sort function should be the last. You should
821probably always include `gnus-thread-sort-by-number' in the list of
822sorting functions -- preferably first. Also note that sorting by date
823is often much slower than sorting by number, and the sorting order is
824very similar. (Sorting by date means sorting by the time the message
825was sent, sorting by number means sorting by arrival time.)
eec82323 826
01c52d31
MB
827Each list item can also be a list `(not F)' where F is a
828function; this specifies reversed sort order.
829
eec82323 830Ready-made functions include `gnus-thread-sort-by-number',
01c52d31
MB
831`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
832`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
833`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
834`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
835and `gnus-thread-sort-by-total-score' (see
836`gnus-thread-score-function').
23f87bed
MB
837
838When threading is turned off, the variable
839`gnus-article-sort-functions' controls how articles are sorted."
eec82323 840 :group 'gnus-summary-sort
01c52d31
MB
841 :type '(repeat
842 (gnus-widget-reversible
843 (choice (function-item gnus-thread-sort-by-number)
844 (function-item gnus-thread-sort-by-author)
845 (function-item gnus-thread-sort-by-recipient)
846 (function-item gnus-thread-sort-by-subject)
847 (function-item gnus-thread-sort-by-date)
848 (function-item gnus-thread-sort-by-score)
849 (function-item gnus-thread-sort-by-most-recent-number)
850 (function-item gnus-thread-sort-by-most-recent-date)
851 (function-item gnus-thread-sort-by-random)
852 (function-item gnus-thread-sort-by-total-score)
853 (function :tag "other"))
854 (boolean :tag "Reverse order"))))
eec82323
LMI
855
856(defcustom gnus-thread-score-function '+
857 "*Function used for calculating the total score of a thread.
858
859The function is called with the scores of the article and each
860subthread and should then return the score of the thread.
861
862Some functions you can use are `+', `max', or `min'."
863 :group 'gnus-summary-sort
864 :type 'function)
865
866(defcustom gnus-summary-expunge-below nil
6748645f
LMI
867 "All articles that have a score less than this variable will be expunged.
868This variable is local to the summary buffers."
eec82323
LMI
869 :group 'gnus-score-default
870 :type '(choice (const :tag "off" nil)
871 integer))
872
873(defcustom gnus-thread-expunge-below nil
874 "All threads that have a total score less than this variable will be expunged.
875See `gnus-thread-score-function' for en explanation of what a
6748645f
LMI
876\"thread score\" is.
877
878This variable is local to the summary buffers."
16409b0b 879 :group 'gnus-threading
eec82323
LMI
880 :group 'gnus-score-default
881 :type '(choice (const :tag "off" nil)
882 integer))
883
884(defcustom gnus-summary-mode-hook nil
885 "*A hook for Gnus summary mode.
886This hook is run before any variables are set in the summary buffer."
23f87bed 887 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
eec82323
LMI
888 :group 'gnus-summary-various
889 :type 'hook)
890
23f87bed
MB
891;; Extracted from gnus-xmas-redefine in order to preserve user settings
892(when (featurep 'xemacs)
893 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
894 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
895 (add-hook 'gnus-summary-mode-hook
896 'gnus-xmas-switch-horizontal-scrollbar-off))
897
eec82323
LMI
898(defcustom gnus-summary-menu-hook nil
899 "*Hook run after the creation of the summary mode menu."
900 :group 'gnus-summary-visual
901 :type 'hook)
902
903(defcustom gnus-summary-exit-hook nil
904 "*A hook called on exit from the summary buffer.
905It will be called with point in the group buffer."
906 :group 'gnus-summary-exit
907 :type 'hook)
908
909(defcustom gnus-summary-prepare-hook nil
910 "*A hook called after the summary buffer has been generated.
911If you want to modify the summary buffer, you can use this hook."
912 :group 'gnus-summary-various
913 :type 'hook)
914
6748645f
LMI
915(defcustom gnus-summary-prepared-hook nil
916 "*A hook called as the last thing after the summary buffer has been generated."
917 :group 'gnus-summary-various
918 :type 'hook)
919
eec82323
LMI
920(defcustom gnus-summary-generate-hook nil
921 "*A hook run just before generating the summary buffer.
922This hook is commonly used to customize threading variables and the
923like."
924 :group 'gnus-summary-various
925 :type 'hook)
926
927(defcustom gnus-select-group-hook nil
928 "*A hook called when a newsgroup is selected.
929
930If you'd like to simplify subjects like the
931`gnus-summary-next-same-subject' command does, you can use the
932following hook:
933
23f87bed
MB
934 (add-hook gnus-select-group-hook
935 (lambda ()
936 (mapcar (lambda (header)
937 (mail-header-set-subject
938 header
939 (gnus-simplify-subject
940 (mail-header-subject header) 're-only)))
941 gnus-newsgroup-headers)))"
eec82323
LMI
942 :group 'gnus-group-select
943 :type 'hook)
944
945(defcustom gnus-select-article-hook nil
946 "*A hook called when an article is selected."
947 :group 'gnus-summary-choose
23f87bed 948 :options '(gnus-agent-fetch-selected-article)
eec82323
LMI
949 :type 'hook)
950
951(defcustom gnus-visual-mark-article-hook
952 (list 'gnus-highlight-selected-summary)
953 "*Hook run after selecting an article in the summary buffer.
954It is meant to be used for highlighting the article in some way. It
955is not run if `gnus-visual' is nil."
956 :group 'gnus-summary-visual
957 :type 'hook)
958
16409b0b 959(defcustom gnus-parse-headers-hook nil
eec82323
LMI
960 "*A hook called before parsing the headers."
961 :group 'gnus-various
962 :type 'hook)
963
964(defcustom gnus-exit-group-hook nil
16409b0b
GM
965 "*A hook called when exiting summary mode.
966This hook is not called from the non-updating exit commands like `Q'."
eec82323
LMI
967 :group 'gnus-various
968 :type 'hook)
969
970(defcustom gnus-summary-update-hook
971 (list 'gnus-summary-highlight-line)
972 "*A hook called when a summary line is changed.
973The hook will not be called if `gnus-visual' is nil.
974
975The default function `gnus-summary-highlight-line' will
976highlight the line according to the `gnus-summary-highlight'
977variable."
978 :group 'gnus-summary-visual
979 :type 'hook)
980
981(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
982 "*A hook called when an article is selected for the first time.
983The hook is intended to mark an article as read (or unread)
984automatically when it is selected."
985 :group 'gnus-summary-choose
986 :type 'hook)
987
988(defcustom gnus-group-no-more-groups-hook nil
989 "*A hook run when returning to group mode having no more (unread) groups."
990 :group 'gnus-group-select
991 :type 'hook)
992
993(defcustom gnus-ps-print-hook nil
994 "*A hook run before ps-printing something from Gnus."
995 :group 'gnus-summary
996 :type 'hook)
997
23f87bed
MB
998(defcustom gnus-summary-article-move-hook nil
999 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1000 :version "22.1"
23f87bed
MB
1001 :group 'gnus-summary
1002 :type 'hook)
1003
1004(defcustom gnus-summary-article-delete-hook nil
1005 "*A hook called after an article is deleted."
bf247b6e 1006 :version "22.1"
23f87bed
MB
1007 :group 'gnus-summary
1008 :type 'hook)
1009
1010(defcustom gnus-summary-article-expire-hook nil
1011 "*A hook called after an article is expired."
bf247b6e 1012 :version "22.1"
23f87bed
MB
1013 :group 'gnus-summary
1014 :type 'hook)
1015
1016(defcustom gnus-summary-display-arrow
1017 (and (fboundp 'display-graphic-p)
1018 (display-graphic-p))
1019 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1020 :version "22.1"
23f87bed
MB
1021 :group 'gnus-summary
1022 :type 'boolean)
1023
0f49874b 1024(defcustom gnus-summary-selected-face 'gnus-summary-selected
eec82323
LMI
1025 "Face used for highlighting the current article in the summary buffer."
1026 :group 'gnus-summary-visual
1027 :type 'face)
1028
23f87bed
MB
1029(defvar gnus-tmp-downloaded nil)
1030
eec82323 1031(defcustom gnus-summary-highlight
23f87bed 1032 '(((eq mark gnus-canceled-mark)
0f49874b 1033 . gnus-summary-cancelled)
23f87bed 1034 ((and uncached (> score default-high))
0f49874b 1035 . gnus-summary-high-undownloaded)
23f87bed 1036 ((and uncached (< score default-low))
0f49874b 1037 . gnus-summary-low-undownloaded)
23f87bed 1038 (uncached
0f49874b 1039 . gnus-summary-normal-undownloaded)
23f87bed
MB
1040 ((and (> score default-high)
1041 (or (eq mark gnus-dormant-mark)
1042 (eq mark gnus-ticked-mark)))
0f49874b 1043 . gnus-summary-high-ticked)
23f87bed
MB
1044 ((and (< score default-low)
1045 (or (eq mark gnus-dormant-mark)
1046 (eq mark gnus-ticked-mark)))
0f49874b 1047 . gnus-summary-low-ticked)
23f87bed
MB
1048 ((or (eq mark gnus-dormant-mark)
1049 (eq mark gnus-ticked-mark))
0f49874b 1050 . gnus-summary-normal-ticked)
23f87bed 1051 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1052 . gnus-summary-high-ancient)
23f87bed 1053 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1054 . gnus-summary-low-ancient)
23f87bed 1055 ((eq mark gnus-ancient-mark)
0f49874b 1056 . gnus-summary-normal-ancient)
23f87bed 1057 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1058 . gnus-summary-high-unread)
23f87bed 1059 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1060 . gnus-summary-low-unread)
23f87bed 1061 ((eq mark gnus-unread-mark)
0f49874b 1062 . gnus-summary-normal-unread)
23f87bed 1063 ((> score default-high)
0f49874b 1064 . gnus-summary-high-read)
23f87bed 1065 ((< score default-low)
0f49874b 1066 . gnus-summary-low-read)
eec82323 1067 (t
0f49874b 1068 . gnus-summary-normal-read))
6748645f 1069 "*Controls the highlighting of summary buffer lines.
eec82323 1070
107cf8ec 1071A list of (FORM . FACE) pairs. When deciding how a particular
23f87bed
MB
1072summary line should be displayed, each form is evaluated. The content
1073of the face field after the first true form is used. You can change
1074how those summary lines are displayed, by editing the face field.
eec82323
LMI
1075
1076You can use the following variables in the FORM field.
1077
107cf8ec 1078score: The article's score.
23f87bed
MB
1079default: The default article score.
1080default-high: The default score for high scored articles.
1081default-low: The default score for low scored articles.
1082below: The score below which articles are automatically marked as read.
1083mark: The article's mark.
1084uncached: Non-nil if the article is uncached."
eec82323
LMI
1085 :group 'gnus-summary-visual
1086 :type '(repeat (cons (sexp :tag "Form" nil)
1087 face)))
c12ecb0a 1088(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1089
6748645f
LMI
1090(defcustom gnus-alter-header-function nil
1091 "Function called to allow alteration of article header structures.
1092The function is called with one parameter, the article header vector,
0ab0f2d3
SZ
1093which it may alter in any way."
1094 :type '(choice (const :tag "None" nil)
1095 function)
1096 :group 'gnus-summary)
eec82323 1097
16409b0b 1098(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
343d6628
MB
1099 "Function used to decode a string with encoded words.")
1100
1101(defvar gnus-decode-encoded-address-function
1102 'mail-decode-encoded-address-string
1103 "Function used to decode addresses with encoded words.")
16409b0b 1104
23f87bed 1105(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1106 "*Extra headers to parse."
58e39d05 1107 :version "21.1"
16409b0b
GM
1108 :group 'gnus-summary
1109 :type '(repeat symbol))
1110
1111(defcustom gnus-ignored-from-addresses
343d6628 1112 (and user-mail-address
7cd9f860
CY
1113 (not (string= user-mail-address ""))
1114 (regexp-quote user-mail-address))
01c52d31
MB
1115 "*From headers that may be suppressed in favor of To headers.
1116This can be a regexp or a list of regexps."
58e39d05 1117 :version "21.1"
16409b0b 1118 :group 'gnus-summary
01c52d31
MB
1119 :type '(choice regexp
1120 (repeat :tag "Regexp List" regexp)))
1121
1122(defsubst gnus-ignored-from-addresses ()
1123 (gmm-regexp-concat gnus-ignored-from-addresses))
1124
1125(defcustom gnus-summary-to-prefix "-> "
1126 "*String prefixed to the To field in the summary line when
1127using `gnus-ignored-from-addresses'."
1128 :version "22.1"
1129 :group 'gnus-summary
1130 :type 'string)
1131
1132(defcustom gnus-summary-newsgroup-prefix "=> "
1133 "*String prefixed to the Newsgroup field in the summary
1134line when using `gnus-ignored-from-addresses'."
1135 :version "22.1"
1136 :group 'gnus-summary
1137 :type 'string)
16409b0b 1138
16409b0b
GM
1139(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1140 "List of charsets that should be ignored.
1141When these charsets are used in the \"charset\" parameter, the
1142default charset will be used instead."
58e39d05 1143 :version "21.1"
16409b0b
GM
1144 :type '(repeat symbol)
1145 :group 'gnus-charset)
1146
4b70e299
MB
1147(defcustom gnus-newsgroup-maximum-articles nil
1148 "The maximum number of articles a newsgroup.
1149If this is a number, old articles in a newsgroup exceeding this number
1150are silently ignored. If it is nil, no article is ignored. Note that
1151setting this variable to a number might prevent you from reading very
1152old articles."
1153 :group 'gnus-group-select
1154 :version "22.2"
1155 :type '(choice (const :tag "No limit" nil)
1156 integer))
1157
23f87bed
MB
1158(gnus-define-group-parameter
1159 ignored-charsets
1160 :type list
1161 :function-document
1162 "Return the ignored charsets of GROUP."
1163 :variable gnus-group-ignored-charsets-alist
1164 :variable-default
1165 '(("alt\\.chinese\\.text" iso-8859-1))
1166 :variable-document
1167 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1168When these charsets are used in the \"charset\" parameter, the
1169default charset will be used instead."
23f87bed
MB
1170 :variable-group gnus-charset
1171 :variable-type '(repeat (cons (regexp :tag "Group")
1172 (repeat symbol)))
1173 :parameter-type '(choice :tag "Ignored charsets"
1174 :value nil
1175 (repeat (symbol)))
1176 :parameter-document "\
1177List of charsets that should be ignored.
1178
1179When these charsets are used in the \"charset\" parameter, the
1180default charset will be used instead.")
16409b0b
GM
1181
1182(defcustom gnus-group-highlight-words-alist nil
1183 "Alist of group regexps and highlight regexps.
1184This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1185 :version "21.1"
16409b0b
GM
1186 :type '(repeat (cons (regexp :tag "Group")
1187 (repeat (list (regexp :tag "Highlight regexp")
1188 (number :tag "Group for entire word" 0)
1189 (number :tag "Group for displayed part" 0)
1190 (symbol :tag "Face"
1191 gnus-emphasis-highlight-words)))))
1192 :group 'gnus-summary-visual)
1193
1194(defcustom gnus-summary-show-article-charset-alist
1195 nil
1196 "Alist of number and charset.
1197The article will be shown with the charset corresponding to the
1198numbered argument.
1199For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1200 :version "21.1"
16409b0b
GM
1201 :type '(repeat (cons (number :tag "Argument" 1)
1202 (symbol :tag "Charset")))
1203 :group 'gnus-charset)
1204
1205(defcustom gnus-preserve-marks t
1206 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1207 :version "21.1"
16409b0b
GM
1208 :type 'boolean
1209 :group 'gnus-summary-marks)
1210
3a23a519
MB
1211(defcustom gnus-propagate-marks t
1212 "If non-nil, do not propagate marks to the backends."
f8a29505 1213 :version "23.1" ;; No Gnus
3a23a519
MB
1214 :type 'boolean
1215 :group 'gnus-summary-marks)
1216
16409b0b
GM
1217(defcustom gnus-alter-articles-to-read-function nil
1218 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1219 :type '(choice (const nil) function)
16409b0b
GM
1220 :group 'gnus-summary)
1221
1222(defcustom gnus-orphan-score nil
1223 "*All orphans get this score added. Set in the score file."
1224 :group 'gnus-score-default
1225 :type '(choice (const nil)
1226 integer))
1227
8b93df01 1228(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1229 "*A regexp to match MIME parts when saving multiple parts of a
1230message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1231This regexp will be used by default when prompting the user for which
1232type of files to save."
8b93df01
DL
1233 :group 'gnus-summary
1234 :type 'regexp)
1235
23f87bed
MB
1236(defcustom gnus-read-all-available-headers nil
1237 "Whether Gnus should parse all headers made available to it.
1238This is mostly relevant for slow back ends where the user may
1239wish to widen the summary buffer to include all headers
1240that were fetched. Say, for nnultimate groups."
bf247b6e 1241 :version "22.1"
23f87bed
MB
1242 :group 'gnus-summary
1243 :type '(choice boolean regexp))
1244
89167438
MB
1245(defcustom gnus-summary-pipe-output-default-command nil
1246 "Command (and optional arguments) used to pipe article to subprocess.
1247This will be used as the default command if it is non-nil. The value
1248will be updated if you modify it when executing the command
1249`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1250 :version "23.1" ;; No Gnus
1251 :group 'gnus-summary
1252 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1253
23f87bed 1254(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1255 "Command (and optional arguments) used to run Muttprint.
1256The value will be updated if you modify it when executing the command
1257`gnus-summary-muttprint'."
bf247b6e 1258 :version "22.1"
23f87bed
MB
1259 :group 'gnus-summary
1260 :type 'string)
1261
01c52d31 1262(defcustom gnus-article-loose-mime t
23f87bed
MB
1263 "If non-nil, don't require MIME-Version header.
1264Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1265supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1266If non-nil (the default), Gnus will treat some articles as MIME
1267even if the MIME-Version header is missing."
bf247b6e 1268 :version "22.1"
23f87bed
MB
1269 :type 'boolean
1270 :group 'gnus-article-mime)
1271
1272(defcustom gnus-article-emulate-mime t
1273 "If non-nil, use MIME emulation for uuencode and the like.
1274This means that Gnus will search message bodies for text that look
1275like uuencoded bits, yEncoded bits, and so on, and present that using
1276the normal Gnus MIME machinery."
bf247b6e 1277 :version "22.1"
23f87bed
MB
1278 :type 'boolean
1279 :group 'gnus-article-mime)
8b93df01 1280
eec82323
LMI
1281;;; Internal variables
1282
23f87bed 1283(defvar gnus-summary-display-cache nil)
16409b0b
GM
1284(defvar gnus-article-mime-handles nil)
1285(defvar gnus-article-decoded-p nil)
23f87bed
MB
1286(defvar gnus-article-charset nil)
1287(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1288(defvar gnus-scores-exclude-files nil)
1289(defvar gnus-page-broken nil)
1290
1291(defvar gnus-original-article nil)
1292(defvar gnus-article-internal-prepare-hook nil)
1293(defvar gnus-newsgroup-process-stack nil)
1294
1295(defvar gnus-thread-indent-array nil)
1296(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1297(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1298 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1299
8b93df01 1300(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1301(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1302
eec82323
LMI
1303;; Avoid highlighting in kill files.
1304(defvar gnus-summary-inhibit-highlight nil)
1305(defvar gnus-newsgroup-selected-overlay nil)
1306(defvar gnus-inhibit-limiting nil)
1307(defvar gnus-newsgroup-adaptive-score-file nil)
1308(defvar gnus-current-score-file nil)
1309(defvar gnus-current-move-group nil)
1310(defvar gnus-current-copy-group nil)
1311(defvar gnus-current-crosspost-group nil)
23f87bed 1312(defvar gnus-newsgroup-display nil)
eec82323
LMI
1313
1314(defvar gnus-newsgroup-dependencies nil)
1315(defvar gnus-newsgroup-adaptive nil)
1316(defvar gnus-summary-display-article-function nil)
1317(defvar gnus-summary-highlight-line-function nil
1318 "Function called after highlighting a summary line.")
1319
1320(defvar gnus-summary-line-format-alist
1321 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1322 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1323 (?s gnus-tmp-subject-or-nil ?s)
1324 (?n gnus-tmp-name ?s)
1325 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1326 ?s)
1327 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1328 gnus-tmp-from) ?s)
1329 (?F gnus-tmp-from ?s)
1330 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1331 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1332 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1333 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1334 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1335 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1336 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1337 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1338 (?L gnus-tmp-lines ?s)
1339 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1340 (?I gnus-tmp-indentation ?s)
1341 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1342 (?R gnus-tmp-replied ?c)
1343 (?\[ gnus-tmp-opening-bracket ?c)
1344 (?\] gnus-tmp-closing-bracket ?c)
1345 (?\> (make-string gnus-tmp-level ? ) ?s)
1346 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1347 (?i gnus-tmp-score ?d)
1348 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1349 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1350 (?U gnus-tmp-unread ?c)
23f87bed
MB
1351 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1352 ?s)
eec82323
LMI
1353 (?t (gnus-summary-number-of-articles-in-thread
1354 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1355 ?d)
1356 (?e (gnus-summary-number-of-articles-in-thread
1357 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1358 ?c)
1359 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1360 (?P (gnus-pick-line-number) ?d)
1361 (?B gnus-tmp-thread-tree-header-string ?s)
1362 (user-date (gnus-user-date
1363 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1364 "An alist of format specifications that can appear in summary lines.
1365These are paired with what variables they correspond with, along with
1366the type of the variable (string, integer, character, etc).")
eec82323
LMI
1367
1368(defvar gnus-summary-dummy-line-format-alist
1369 `((?S gnus-tmp-subject ?s)
1370 (?N gnus-tmp-number ?d)
1371 (?u gnus-tmp-user-defined ?s)))
1372
1373(defvar gnus-summary-mode-line-format-alist
1374 `((?G gnus-tmp-group-name ?s)
1375 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1376 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1377 (?A gnus-tmp-article-number ?d)
1378 (?Z gnus-tmp-unread-and-unselected ?s)
1379 (?V gnus-version ?s)
1380 (?U gnus-tmp-unread-and-unticked ?d)
1381 (?S gnus-tmp-subject ?s)
1382 (?e gnus-tmp-unselected ?d)
1383 (?u gnus-tmp-user-defined ?s)
1384 (?d (length gnus-newsgroup-dormant) ?d)
1385 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1386 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1387 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1388 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1389 (?E gnus-newsgroup-expunged-tally ?d)
1390 (?s (gnus-current-score-file-nondirectory) ?s)))
1391
c1717fbd
GM
1392;; This is here rather than in gnus-art for compilation reasons.
1393(defvar gnus-article-mode-line-format-alist
1394 (nconc '((?w (gnus-article-wash-status) ?s)
1395 (?m (gnus-article-mime-part-status) ?s))
1396 gnus-summary-mode-line-format-alist))
1397
eec82323
LMI
1398(defvar gnus-last-search-regexp nil
1399 "Default regexp for article search command.")
1400
1401(defvar gnus-last-shell-command nil
1402 "Default shell command on article.")
1403
23f87bed
MB
1404(defvar gnus-newsgroup-agentized nil
1405 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1406(defvar gnus-newsgroup-begin nil)
1407(defvar gnus-newsgroup-end nil)
1408(defvar gnus-newsgroup-last-rmail nil)
1409(defvar gnus-newsgroup-last-mail nil)
1410(defvar gnus-newsgroup-last-folder nil)
1411(defvar gnus-newsgroup-last-file nil)
26c9afc3 1412(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1413(defvar gnus-newsgroup-auto-expire nil)
1414(defvar gnus-newsgroup-active nil)
1415
1416(defvar gnus-newsgroup-data nil)
1417(defvar gnus-newsgroup-data-reverse nil)
1418(defvar gnus-newsgroup-limit nil)
1419(defvar gnus-newsgroup-limits nil)
23f87bed 1420(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1421
1422(defvar gnus-newsgroup-unreads nil
23f87bed 1423 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1424
1425(defvar gnus-newsgroup-unselected nil
23f87bed 1426 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1427
1428(defvar gnus-newsgroup-reads nil
1429 "Alist of read articles and article marks in the current newsgroup.")
1430
1431(defvar gnus-newsgroup-expunged-tally nil)
1432
1433(defvar gnus-newsgroup-marked nil
23f87bed
MB
1434 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1435
1436(defvar gnus-newsgroup-spam-marked nil
1437 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1438
1439(defvar gnus-newsgroup-killed nil
1440 "List of ranges of articles that have been through the scoring process.")
1441
1442(defvar gnus-newsgroup-cached nil
23f87bed 1443 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1444
1445(defvar gnus-newsgroup-saved nil
1446 "List of articles that have been saved.")
1447
1448(defvar gnus-newsgroup-kill-headers nil)
1449
1450(defvar gnus-newsgroup-replied nil
1451 "List of articles that have been replied to in the current newsgroup.")
1452
23f87bed
MB
1453(defvar gnus-newsgroup-forwarded nil
1454 "List of articles that have been forwarded in the current newsgroup.")
1455
1456(defvar gnus-newsgroup-recent nil
1457 "List of articles that have are recent in the current newsgroup.")
1458
eec82323 1459(defvar gnus-newsgroup-expirable nil
23f87bed 1460 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1461
1462(defvar gnus-newsgroup-processable nil
1463 "List of articles in the current newsgroup that can be processed.")
1464
6748645f 1465(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1466 "Sorted list of articles in the current newsgroup that can be processed.")
1467
1468(defvar gnus-newsgroup-unfetched nil
1469 "Sorted list of articles in the current newsgroup whose headers have
1470not been fetched into the agent.
1471
1472This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1473
1474(defvar gnus-newsgroup-undownloaded nil
23f87bed 1475 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1476
1477(defvar gnus-newsgroup-unsendable nil
1478 "List of articles in the current newsgroup that won't be sent.")
1479
eec82323
LMI
1480(defvar gnus-newsgroup-bookmarks nil
1481 "List of articles in the current newsgroup that have bookmarks.")
1482
1483(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1484 "Sorted list of dormant articles in the current newsgroup.")
1485
1486(defvar gnus-newsgroup-unseen nil
1487 "List of unseen articles in the current newsgroup.")
1488
1489(defvar gnus-newsgroup-seen nil
1490 "Range of seen articles in the current newsgroup.")
1491
1492(defvar gnus-newsgroup-articles nil
1493 "List of articles in the current newsgroup.")
eec82323
LMI
1494
1495(defvar gnus-newsgroup-scored nil
1496 "List of scored articles in the current newsgroup.")
1497
1498(defvar gnus-newsgroup-headers nil
1499 "List of article headers in the current newsgroup.")
1500
1501(defvar gnus-newsgroup-threads nil)
1502
1503(defvar gnus-newsgroup-prepared nil
1504 "Whether the current group has been prepared properly.")
1505
1506(defvar gnus-newsgroup-ancient nil
1507 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1508
1509(defvar gnus-newsgroup-sparse nil)
1510
1511(defvar gnus-current-article nil)
1512(defvar gnus-article-current nil)
1513(defvar gnus-current-headers nil)
1514(defvar gnus-have-all-headers nil)
1515(defvar gnus-last-article nil)
1516(defvar gnus-newsgroup-history nil)
16409b0b
GM
1517(defvar gnus-newsgroup-charset nil)
1518(defvar gnus-newsgroup-ephemeral-charset nil)
1519(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1520
23f87bed
MB
1521(defvar gnus-article-before-search nil)
1522
1523(defvar gnus-summary-local-variables
eec82323
LMI
1524 '(gnus-newsgroup-name
1525 gnus-newsgroup-begin gnus-newsgroup-end
1526 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1527 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1528 gnus-newsgroup-last-directory
eec82323
LMI
1529 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1530 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1531 gnus-newsgroup-spam-marked
eec82323 1532 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1533 gnus-newsgroup-replied gnus-newsgroup-forwarded
1534 gnus-newsgroup-recent
1535 gnus-newsgroup-expirable
eec82323 1536 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1537 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1538 gnus-newsgroup-unfetched
1539 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1540 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1541 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1542 gnus-newsgroup-headers gnus-newsgroup-threads
1543 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1544 gnus-current-article gnus-current-headers gnus-have-all-headers
1545 gnus-last-article gnus-article-internal-prepare-hook
1546 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1547 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1548 gnus-thread-expunge-below
16409b0b
GM
1549 gnus-score-alist gnus-current-score-file
1550 (gnus-summary-expunge-below . global)
eec82323 1551 (gnus-summary-mark-below . global)
16409b0b 1552 (gnus-orphan-score . global)
eec82323
LMI
1553 gnus-newsgroup-active gnus-scores-exclude-files
1554 gnus-newsgroup-history gnus-newsgroup-ancient
1555 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1556 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1557 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1558 (gnus-newsgroup-expunged-tally . 0)
1559 gnus-cache-removable-articles gnus-newsgroup-cached
1560 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1561 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1562 gnus-newsgroup-charset gnus-newsgroup-display
1563 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1564 "Variables that are buffer-local to the summary buffers.")
1565
23f87bed
MB
1566(defvar gnus-newsgroup-variables nil
1567 "A list of variables that have separate values in different newsgroups.
1568A list of newsgroup (summary buffer) local variables, or cons of
1569variables and their default expressions to be evalled (when the default
1570values are not nil), that should be made global while the summary buffer
1571is active.
1572
1573Note: The default expressions will be evaluated (using function `eval')
1574before assignment to the local variable rather than just assigned to it.
1575If the default expression is the symbol `global', that symbol will not
1576be evaluated but the global value of the local variable will be used
1577instead.
1578
1579These variables can be used to set variables in the group parameters
1580while still allowing them to affect operations done in other buffers.
1581For example:
1582
1583\(setq gnus-newsgroup-variables
1584 '(message-use-followup-to
1585 (gnus-visible-headers .
1586 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1587")
1588
23f87bed
MB
1589(eval-when-compile
1590 ;; Bind features so that require will believe that gnus-sum has
1591 ;; already been loaded (avoids infinite recursion)
1592 (let ((features (cons 'gnus-sum features)))
23f87bed 1593 (require 'gnus-art)))
eec82323 1594
16409b0b
GM
1595;; MIME stuff.
1596
1597(defvar gnus-decode-encoded-word-methods
1598 '(mail-decode-encoded-word-string)
1599 "List of methods used to decode encoded words.
1600
23f87bed
MB
1601This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1602is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1603\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1604whose names match REGEXP.
1605
1606For example:
23f87bed 1607\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1608 mail-decode-encoded-word-string
1609 (\"chinese\" . rfc1843-decode-string))")
1610
1611(defvar gnus-decode-encoded-word-methods-cache nil)
1612
1613(defun gnus-multi-decode-encoded-word-string (string)
1614 "Apply the functions from `gnus-encoded-word-methods' that match."
1615 (unless (and gnus-decode-encoded-word-methods-cache
1616 (eq gnus-newsgroup-name
1617 (car gnus-decode-encoded-word-methods-cache)))
1618 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1619 (dolist (method gnus-decode-encoded-word-methods)
1620 (if (symbolp method)
1621 (nconc gnus-decode-encoded-word-methods-cache (list method))
1622 (if (and gnus-newsgroup-name
1623 (string-match (car method) gnus-newsgroup-name))
1624 (nconc gnus-decode-encoded-word-methods-cache
1625 (list (cdr method)))))))
1626 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1627 (setq string (funcall method string))))
16409b0b 1628
eec82323
LMI
1629;; Subject simplification.
1630
6748645f 1631(defun gnus-simplify-whitespace (str)
16409b0b 1632 "Remove excessive whitespace from STR."
23f87bed
MB
1633 ;; Multiple spaces.
1634 (while (string-match "[ \t][ \t]+" str)
1635 (setq str (concat (substring str 0 (match-beginning 0))
1636 " "
1637 (substring str (match-end 0)))))
1638 ;; Leading spaces.
1639 (when (string-match "^[ \t]+" str)
1640 (setq str (substring str (match-end 0))))
1641 ;; Trailing spaces.
1642 (when (string-match "[ \t]+$" str)
1643 (setq str (substring str 0 (match-beginning 0))))
1644 str)
1645
1646(defun gnus-simplify-all-whitespace (str)
1647 "Remove all whitespace from STR."
1648 (while (string-match "[ \t\n]+" str)
1649 (setq str (replace-match "" nil nil str)))
1650 str)
6748645f 1651
eec82323
LMI
1652(defsubst gnus-simplify-subject-re (subject)
1653 "Remove \"Re:\" from subject lines."
23f87bed 1654 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1655 (substring subject (match-end 0))
1656 subject))
1657
1658(defun gnus-simplify-subject (subject &optional re-only)
1659 "Remove `Re:' and words in parentheses.
1660If RE-ONLY is non-nil, strip leading `Re:'s only."
1661 (let ((case-fold-search t)) ;Ignore case.
1662 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1663 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1664 (setq subject (substring subject (match-end 0))))
1665 ;; Remove uninteresting prefixes.
1666 (when (and (not re-only)
1667 gnus-simplify-ignored-prefixes
1668 (string-match gnus-simplify-ignored-prefixes subject))
1669 (setq subject (substring subject (match-end 0))))
1670 ;; Remove words in parentheses from end.
1671 (unless re-only
1672 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1673 (setq subject (substring subject 0 (match-beginning 0)))))
1674 ;; Return subject string.
1675 subject))
1676
1677;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1678;; all whitespace.
1679(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1680 (goto-char (point-min))
1681 (while (re-search-forward regexp nil t)
16409b0b 1682 (replace-match (or newtext ""))))
eec82323
LMI
1683
1684(defun gnus-simplify-buffer-fuzzy ()
1685 "Simplify string in the buffer fuzzily.
1686The string in the accessible portion of the current buffer is simplified.
1687It is assumed to be a single-line subject.
1688Whitespace is generally cleaned up, and miscellaneous leading/trailing
1689matter is removed. Additional things can be deleted by setting
16409b0b 1690`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1691 (let ((case-fold-search t)
1692 (modified-tick))
1693 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1694
1695 (while (not (eq modified-tick (buffer-modified-tick)))
1696 (setq modified-tick (buffer-modified-tick))
1697 (cond
1698 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
MB
1699 (mapc 'gnus-simplify-buffer-fuzzy-step
1700 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1701 (gnus-simplify-subject-fuzzy-regexp
1702 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1703 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1704 (gnus-simplify-buffer-fuzzy-step
1705 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1706 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1707
1708 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1709 (gnus-simplify-buffer-fuzzy-step " +" " ")
1710 (gnus-simplify-buffer-fuzzy-step " $")
1711 (gnus-simplify-buffer-fuzzy-step "^ +")))
1712
1713(defun gnus-simplify-subject-fuzzy (subject)
1714 "Simplify a subject string fuzzily.
6748645f 1715See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1716 (save-excursion
1717 (gnus-set-work-buffer)
1718 (let ((case-fold-search t))
6748645f
LMI
1719 ;; Remove uninteresting prefixes.
1720 (when (and gnus-simplify-ignored-prefixes
1721 (string-match gnus-simplify-ignored-prefixes subject))
1722 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1723 (insert subject)
1724 (inline (gnus-simplify-buffer-fuzzy))
1725 (buffer-string))))
1726
1727(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1728 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1729 (cond
6748645f
LMI
1730 (gnus-simplify-subject-functions
1731 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1732 ((null gnus-summary-gather-subject-limit)
1733 (gnus-simplify-subject-re subject))
1734 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1735 (gnus-simplify-subject-fuzzy subject))
1736 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1737 (truncate-string-to-width (gnus-simplify-subject-re subject)
1738 gnus-summary-gather-subject-limit))
eec82323
LMI
1739 (t
1740 subject)))
1741
1742(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1743 "Check whether two subjects are equal.
23f87bed 1744If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1745simplified."
eec82323
LMI
1746 (cond
1747 ((null simple-first)
1748 (equal (gnus-simplify-subject-fully s1)
1749 (gnus-simplify-subject-fully s2)))
1750 (t
1751 (equal s1
1752 (gnus-simplify-subject-fully s2)))))
1753
1754(defun gnus-summary-bubble-group ()
1755 "Increase the score of the current group.
1756This is a handy function to add to `gnus-summary-exit-hook' to
1757increase the score of each group you read."
1758 (gnus-group-add-score gnus-newsgroup-name))
1759
1760\f
1761;;;
1762;;; Gnus summary mode
1763;;;
1764
1765(put 'gnus-summary-mode 'mode-class 'special)
1766
1653df0f
SZ
1767(defvar gnus-article-commands-menu)
1768
23f87bed
MB
1769;; Non-orthogonal keys
1770
1771(gnus-define-keys gnus-summary-mode-map
1772 " " gnus-summary-next-page
1773 "\177" gnus-summary-prev-page
1774 [delete] gnus-summary-prev-page
1775 [backspace] gnus-summary-prev-page
1776 "\r" gnus-summary-scroll-up
1777 "\M-\r" gnus-summary-scroll-down
1778 "n" gnus-summary-next-unread-article
1779 "p" gnus-summary-prev-unread-article
1780 "N" gnus-summary-next-article
1781 "P" gnus-summary-prev-article
1782 "\M-\C-n" gnus-summary-next-same-subject
1783 "\M-\C-p" gnus-summary-prev-same-subject
1784 "\M-n" gnus-summary-next-unread-subject
1785 "\M-p" gnus-summary-prev-unread-subject
1786 "." gnus-summary-first-unread-article
1787 "," gnus-summary-best-unread-article
1788 "\M-s" gnus-summary-search-article-forward
1789 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1790 "\M-S" gnus-summary-repeat-search-article-forward
1791 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
MB
1792 "<" gnus-summary-beginning-of-article
1793 ">" gnus-summary-end-of-article
1794 "j" gnus-summary-goto-article
1795 "^" gnus-summary-refer-parent-article
1796 "\M-^" gnus-summary-refer-article
1797 "u" gnus-summary-tick-article-forward
1798 "!" gnus-summary-tick-article-forward
1799 "U" gnus-summary-tick-article-backward
1800 "d" gnus-summary-mark-as-read-forward
1801 "D" gnus-summary-mark-as-read-backward
1802 "E" gnus-summary-mark-as-expirable
1803 "\M-u" gnus-summary-clear-mark-forward
1804 "\M-U" gnus-summary-clear-mark-backward
1805 "k" gnus-summary-kill-same-subject-and-select
1806 "\C-k" gnus-summary-kill-same-subject
1807 "\M-\C-k" gnus-summary-kill-thread
1808 "\M-\C-l" gnus-summary-lower-thread
1809 "e" gnus-summary-edit-article
1810 "#" gnus-summary-mark-as-processable
1811 "\M-#" gnus-summary-unmark-as-processable
1812 "\M-\C-t" gnus-summary-toggle-threads
1813 "\M-\C-s" gnus-summary-show-thread
1814 "\M-\C-h" gnus-summary-hide-thread
1815 "\M-\C-f" gnus-summary-next-thread
1816 "\M-\C-b" gnus-summary-prev-thread
1817 [(meta down)] gnus-summary-next-thread
1818 [(meta up)] gnus-summary-prev-thread
1819 "\M-\C-u" gnus-summary-up-thread
1820 "\M-\C-d" gnus-summary-down-thread
1821 "&" gnus-summary-execute-command
1822 "c" gnus-summary-catchup-and-exit
1823 "\C-w" gnus-summary-mark-region-as-read
1824 "\C-t" gnus-summary-toggle-truncation
1825 "?" gnus-summary-mark-as-dormant
1826 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1827 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1828 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1829 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1830 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1831 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1832 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1833 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1834 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1835 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1836 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1837 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1838 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1839 "=" gnus-summary-expand-window
1840 "\C-x\C-s" gnus-summary-reselect-current-group
1841 "\M-g" gnus-summary-rescan-group
1842 "w" gnus-summary-stop-page-breaking
1843 "\C-c\C-r" gnus-summary-caesar-message
1844 "f" gnus-summary-followup
1845 "F" gnus-summary-followup-with-original
1846 "C" gnus-summary-cancel-article
1847 "r" gnus-summary-reply
1848 "R" gnus-summary-reply-with-original
1849 "\C-c\C-f" gnus-summary-mail-forward
1850 "o" gnus-summary-save-article
1851 "\C-o" gnus-summary-save-article-mail
1852 "|" gnus-summary-pipe-output
1853 "\M-k" gnus-summary-edit-local-kill
1854 "\M-K" gnus-summary-edit-global-kill
1855 ;; "V" gnus-version
1856 "\C-c\C-d" gnus-summary-describe-group
1857 "q" gnus-summary-exit
1858 "Q" gnus-summary-exit-no-update
1859 "\C-c\C-i" gnus-info-find-node
1860 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1861 [follow-link] mouse-face
23f87bed
MB
1862 "m" gnus-summary-mail-other-window
1863 "a" gnus-summary-post-news
1864 "i" gnus-summary-news-other-window
1865 "x" gnus-summary-limit-to-unread
1866 "s" gnus-summary-isearch-article
1867 "t" gnus-summary-toggle-header
1868 "g" gnus-summary-show-article
1869 "l" gnus-summary-goto-last-article
1870 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1871 "\C-d" gnus-summary-enter-digest-group
1872 "\M-\C-d" gnus-summary-read-document
1873 "\M-\C-e" gnus-summary-edit-parameters
1874 "\M-\C-a" gnus-summary-customize-parameters
1875 "\C-c\C-b" gnus-bug
1876 "*" gnus-cache-enter-article
1877 "\M-*" gnus-cache-remove-article
1878 "\M-&" gnus-summary-universal-argument
1879 "\C-l" gnus-recenter
1880 "I" gnus-summary-increase-score
1881 "L" gnus-summary-lower-score
1882 "\M-i" gnus-symbolic-argument
1883 "h" gnus-summary-select-article-buffer
1884
1885 "b" gnus-article-view-part
1886 "\M-t" gnus-summary-toggle-display-buttonized
1887
1888 "V" gnus-summary-score-map
1889 "X" gnus-uu-extract-map
1890 "S" gnus-summary-send-map)
1891
1892;; Sort of orthogonal keymap
1893(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1894 "t" gnus-summary-tick-article-forward
1895 "!" gnus-summary-tick-article-forward
1896 "d" gnus-summary-mark-as-read-forward
1897 "r" gnus-summary-mark-as-read-forward
1898 "c" gnus-summary-clear-mark-forward
1899 " " gnus-summary-clear-mark-forward
1900 "e" gnus-summary-mark-as-expirable
1901 "x" gnus-summary-mark-as-expirable
1902 "?" gnus-summary-mark-as-dormant
1903 "b" gnus-summary-set-bookmark
1904 "B" gnus-summary-remove-bookmark
1905 "#" gnus-summary-mark-as-processable
1906 "\M-#" gnus-summary-unmark-as-processable
1907 "S" gnus-summary-limit-include-expunged
1908 "C" gnus-summary-catchup
1909 "H" gnus-summary-catchup-to-here
1910 "h" gnus-summary-catchup-from-here
1911 "\C-c" gnus-summary-catchup-all
1912 "k" gnus-summary-kill-same-subject-and-select
1913 "K" gnus-summary-kill-same-subject
1914 "P" gnus-uu-mark-map)
1915
1916(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1917 "c" gnus-summary-clear-above
1918 "u" gnus-summary-tick-above
1919 "m" gnus-summary-mark-above
1920 "k" gnus-summary-kill-below)
1921
1922(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1923 "/" gnus-summary-limit-to-subject
1924 "n" gnus-summary-limit-to-articles
01c52d31
MB
1925 "b" gnus-summary-limit-to-bodies
1926 "h" gnus-summary-limit-to-headers
23f87bed
MB
1927 "w" gnus-summary-pop-limit
1928 "s" gnus-summary-limit-to-subject
1929 "a" gnus-summary-limit-to-author
1930 "u" gnus-summary-limit-to-unread
1931 "m" gnus-summary-limit-to-marks
1932 "M" gnus-summary-limit-exclude-marks
1933 "v" gnus-summary-limit-to-score
1934 "*" gnus-summary-limit-include-cached
1935 "D" gnus-summary-limit-include-dormant
1936 "T" gnus-summary-limit-include-thread
1937 "d" gnus-summary-limit-exclude-dormant
1938 "t" gnus-summary-limit-to-age
1939 "." gnus-summary-limit-to-unseen
1940 "x" gnus-summary-limit-to-extra
1941 "p" gnus-summary-limit-to-display-predicate
1942 "E" gnus-summary-limit-include-expunged
1943 "c" gnus-summary-limit-exclude-childless-dormant
1944 "C" gnus-summary-limit-mark-excluded-as-read
1945 "o" gnus-summary-insert-old-articles
01c52d31
MB
1946 "N" gnus-summary-insert-new-articles
1947 "S" gnus-summary-limit-to-singletons
1948 "r" gnus-summary-limit-to-replied
1949 "R" gnus-summary-limit-to-recipient
1950 "A" gnus-summary-limit-to-address)
23f87bed
MB
1951
1952(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1953 "n" gnus-summary-next-unread-article
1954 "p" gnus-summary-prev-unread-article
1955 "N" gnus-summary-next-article
1956 "P" gnus-summary-prev-article
1957 "\C-n" gnus-summary-next-same-subject
1958 "\C-p" gnus-summary-prev-same-subject
1959 "\M-n" gnus-summary-next-unread-subject
1960 "\M-p" gnus-summary-prev-unread-subject
1961 "f" gnus-summary-first-unread-article
1962 "b" gnus-summary-best-unread-article
1963 "j" gnus-summary-goto-article
1964 "g" gnus-summary-goto-subject
1965 "l" gnus-summary-goto-last-article
1966 "o" gnus-summary-pop-article)
1967
1968(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1969 "k" gnus-summary-kill-thread
01c52d31 1970 "E" gnus-summary-expire-thread
23f87bed
MB
1971 "l" gnus-summary-lower-thread
1972 "i" gnus-summary-raise-thread
1973 "T" gnus-summary-toggle-threads
1974 "t" gnus-summary-rethread-current
1975 "^" gnus-summary-reparent-thread
01c52d31 1976 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1977 "s" gnus-summary-show-thread
1978 "S" gnus-summary-show-all-threads
1979 "h" gnus-summary-hide-thread
1980 "H" gnus-summary-hide-all-threads
1981 "n" gnus-summary-next-thread
1982 "p" gnus-summary-prev-thread
1983 "u" gnus-summary-up-thread
1984 "o" gnus-summary-top-thread
1985 "d" gnus-summary-down-thread
1986 "#" gnus-uu-mark-thread
1987 "\M-#" gnus-uu-unmark-thread)
1988
1989(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1990 "g" gnus-summary-prepare
1991 "c" gnus-summary-insert-cached-articles
01c52d31
MB
1992 "d" gnus-summary-insert-dormant-articles
1993 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
1994
1995(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1996 "c" gnus-summary-catchup-and-exit
1997 "C" gnus-summary-catchup-all-and-exit
1998 "E" gnus-summary-exit-no-update
1999 "Q" gnus-summary-exit
2000 "Z" gnus-summary-exit
2001 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2002 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2003 "R" gnus-summary-reselect-current-group
2004 "G" gnus-summary-rescan-group
2005 "N" gnus-summary-next-group
2006 "s" gnus-summary-save-newsrc
2007 "P" gnus-summary-prev-group)
2008
2009(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2010 " " gnus-summary-next-page
2011 "n" gnus-summary-next-page
2012 "\177" gnus-summary-prev-page
2013 [delete] gnus-summary-prev-page
2014 "p" gnus-summary-prev-page
2015 "\r" gnus-summary-scroll-up
2016 "\M-\r" gnus-summary-scroll-down
2017 "<" gnus-summary-beginning-of-article
2018 ">" gnus-summary-end-of-article
2019 "b" gnus-summary-beginning-of-article
2020 "e" gnus-summary-end-of-article
2021 "^" gnus-summary-refer-parent-article
2022 "r" gnus-summary-refer-parent-article
2023 "D" gnus-summary-enter-digest-group
2024 "R" gnus-summary-refer-references
2025 "T" gnus-summary-refer-thread
2026 "g" gnus-summary-show-article
2027 "s" gnus-summary-isearch-article
2028 "P" gnus-summary-print-article
01c52d31 2029 "S" gnus-sticky-article
23f87bed
MB
2030 "M" gnus-mailing-list-insinuate
2031 "t" gnus-article-babel)
2032
2033(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2034 "b" gnus-article-add-buttons
2035 "B" gnus-article-add-buttons-to-head
2036 "o" gnus-article-treat-overstrike
2037 "e" gnus-article-emphasize
2038 "w" gnus-article-fill-cited-article
2039 "Q" gnus-article-fill-long-lines
01c52d31 2040 "L" gnus-article-toggle-truncate-lines
23f87bed
MB
2041 "C" gnus-article-capitalize-sentences
2042 "c" gnus-article-remove-cr
2043 "q" gnus-article-de-quoted-unreadable
2044 "6" gnus-article-de-base64-unreadable
2045 "Z" gnus-article-decode-HZ
01c52d31 2046 "A" gnus-article-treat-ansi-sequences
23f87bed
MB
2047 "h" gnus-article-wash-html
2048 "u" gnus-article-unsplit-urls
2049 "s" gnus-summary-force-verify-and-decrypt
2050 "f" gnus-article-display-x-face
2051 "l" gnus-summary-stop-page-breaking
2052 "r" gnus-summary-caesar-message
2053 "m" gnus-summary-morse-message
2054 "t" gnus-summary-toggle-header
2055 "g" gnus-treat-smiley
2056 "v" gnus-summary-verbose-headers
2057 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2058 "p" gnus-article-verify-x-pgp-sig
01c52d31
MB
2059 "d" gnus-article-treat-dumbquotes
2060 "i" gnus-summary-idna-message)
23f87bed
MB
2061
2062(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2063 ;; mnemonic: deuglif*Y*
2064 "u" gnus-article-outlook-unwrap-lines
2065 "a" gnus-article-outlook-repair-attribution
2066 "c" gnus-article-outlook-rearrange-citation
2067 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2068
2069(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2070 "a" gnus-article-hide
2071 "h" gnus-article-hide-headers
2072 "b" gnus-article-hide-boring-headers
2073 "s" gnus-article-hide-signature
2074 "c" gnus-article-hide-citation
2075 "C" gnus-article-hide-citation-in-followups
2076 "l" gnus-article-hide-list-identifiers
2077 "B" gnus-article-strip-banner
2078 "P" gnus-article-hide-pem
2079 "\C-c" gnus-article-hide-citation-maybe)
2080
2081(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2082 "a" gnus-article-highlight
2083 "h" gnus-article-highlight-headers
2084 "c" gnus-article-highlight-citation
2085 "s" gnus-article-highlight-signature)
2086
2087(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2088 "f" gnus-article-treat-fold-headers
2089 "u" gnus-article-treat-unfold-headers
2090 "n" gnus-article-treat-fold-newsgroups)
2091
2092(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2093 "x" gnus-article-display-x-face
2094 "d" gnus-article-display-face
2095 "s" gnus-treat-smiley
2096 "D" gnus-article-remove-images
2097 "f" gnus-treat-from-picon
2098 "m" gnus-treat-mail-picon
2099 "n" gnus-treat-newsgroups-picon)
2100
2101(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2102 "w" gnus-article-decode-mime-words
2103 "c" gnus-article-decode-charset
2104 "v" gnus-mime-view-all-parts
2105 "b" gnus-article-view-part)
2106
2107(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2108 "z" gnus-article-date-ut
2109 "u" gnus-article-date-ut
2110 "l" gnus-article-date-local
2111 "p" gnus-article-date-english
2112 "e" gnus-article-date-lapsed
2113 "o" gnus-article-date-original
2114 "i" gnus-article-date-iso8601
2115 "s" gnus-article-date-user)
2116
2117(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2118 "t" gnus-article-remove-trailing-blank-lines
2119 "l" gnus-article-strip-leading-blank-lines
2120 "m" gnus-article-strip-multiple-blank-lines
2121 "a" gnus-article-strip-blank-lines
2122 "A" gnus-article-strip-all-blank-lines
2123 "s" gnus-article-strip-leading-space
2124 "e" gnus-article-strip-trailing-space
2125 "w" gnus-article-remove-leading-whitespace)
2126
2127(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2128 "v" gnus-version
2129 "f" gnus-summary-fetch-faq
2130 "d" gnus-summary-describe-group
2131 "h" gnus-summary-describe-briefly
2132 "i" gnus-info-find-node
2133 "c" gnus-group-fetch-charter
2134 "C" gnus-group-fetch-control)
2135
2136(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2137 "e" gnus-summary-expire-articles
2138 "\M-\C-e" gnus-summary-expire-articles-now
2139 "\177" gnus-summary-delete-article
2140 [delete] gnus-summary-delete-article
2141 [backspace] gnus-summary-delete-article
2142 "m" gnus-summary-move-article
2143 "r" gnus-summary-respool-article
2144 "w" gnus-summary-edit-article
2145 "c" gnus-summary-copy-article
2146 "B" gnus-summary-crosspost-article
2147 "q" gnus-summary-respool-query
2148 "t" gnus-summary-respool-trace
2149 "i" gnus-summary-import-article
2150 "I" gnus-summary-create-article
2151 "p" gnus-summary-article-posted-p)
2152
2153(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2154 "o" gnus-summary-save-article
2155 "m" gnus-summary-save-article-mail
2156 "F" gnus-summary-write-article-file
2157 "r" gnus-summary-save-article-rmail
2158 "f" gnus-summary-save-article-file
2159 "b" gnus-summary-save-article-body-file
26c9afc3 2160 "B" gnus-summary-write-article-body-file
23f87bed
MB
2161 "h" gnus-summary-save-article-folder
2162 "v" gnus-summary-save-article-vm
2163 "p" gnus-summary-pipe-output
2164 "P" gnus-summary-muttprint
2165 "s" gnus-soup-add-article)
2166
2167(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2168 "b" gnus-summary-display-buttonized
2169 "m" gnus-summary-repair-multipart
2170 "v" gnus-article-view-part
2171 "o" gnus-article-save-part
01c52d31
MB
2172 "O" gnus-article-save-part-and-strip
2173 "r" gnus-article-replace-part
2174 "d" gnus-article-delete-part
2175 "t" gnus-article-view-part-as-type
2176 "j" gnus-article-jump-to-part
23f87bed
MB
2177 "c" gnus-article-copy-part
2178 "C" gnus-article-view-part-as-charset
2179 "e" gnus-article-view-part-externally
01c52d31 2180 "H" gnus-article-browse-html-article
23f87bed
MB
2181 "E" gnus-article-encrypt-body
2182 "i" gnus-article-inline-part
2183 "|" gnus-article-pipe-part)
2184
2185(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2186 "p" gnus-summary-mark-as-processable
2187 "u" gnus-summary-unmark-as-processable
2188 "U" gnus-summary-unmark-all-processable
2189 "v" gnus-uu-mark-over
2190 "s" gnus-uu-mark-series
2191 "r" gnus-uu-mark-region
2192 "g" gnus-uu-unmark-region
2193 "R" gnus-uu-mark-by-regexp
2194 "G" gnus-uu-unmark-by-regexp
2195 "t" gnus-uu-mark-thread
2196 "T" gnus-uu-unmark-thread
2197 "a" gnus-uu-mark-all
2198 "b" gnus-uu-mark-buffer
2199 "S" gnus-uu-mark-sparse
2200 "k" gnus-summary-kill-process-mark
2201 "y" gnus-summary-yank-process-mark
2202 "w" gnus-summary-save-process-mark
2203 "i" gnus-uu-invert-processable)
2204
2205(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2206 ;;"x" gnus-uu-extract-any
2207 "m" gnus-summary-save-parts
2208 "u" gnus-uu-decode-uu
2209 "U" gnus-uu-decode-uu-and-save
2210 "s" gnus-uu-decode-unshar
2211 "S" gnus-uu-decode-unshar-and-save
2212 "o" gnus-uu-decode-save
2213 "O" gnus-uu-decode-save
2214 "b" gnus-uu-decode-binhex
2215 "B" gnus-uu-decode-binhex
b890d447 2216 "Y" gnus-uu-decode-yenc
23f87bed
MB
2217 "p" gnus-uu-decode-postscript
2218 "P" gnus-uu-decode-postscript-and-save)
2219
2220(gnus-define-keys
2221 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2222 "u" gnus-uu-decode-uu-view
2223 "U" gnus-uu-decode-uu-and-save-view
2224 "s" gnus-uu-decode-unshar-view
2225 "S" gnus-uu-decode-unshar-and-save-view
2226 "o" gnus-uu-decode-save-view
2227 "O" gnus-uu-decode-save-view
2228 "b" gnus-uu-decode-binhex-view
2229 "B" gnus-uu-decode-binhex-view
2230 "p" gnus-uu-decode-postscript-view
2231 "P" gnus-uu-decode-postscript-and-save-view)
2232
2233(defvar gnus-article-post-menu nil)
2234
2235(defconst gnus-summary-menu-maxlen 20)
2236
2237(defun gnus-summary-menu-split (menu)
2238 ;; If we have lots of elements, divide them into groups of 20
2239 ;; and make a pane (or submenu) for each one.
2240 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2241 (let ((menu menu) sublists next
2242 (i 1))
2243 (while menu
2244 ;; Pull off the next gnus-summary-menu-maxlen elements
2245 ;; and make them the next element of sublist.
2246 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2247 (if next
2248 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2249 nil))
2250 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2251 (aref (car (last menu)) 0)) menu)
2252 sublists))
2253 (setq i (1+ i))
2254 (setq menu next))
2255 (nreverse sublists))
2256 ;; Few elements--put them all in one pane.
2257 menu))
eec82323
LMI
2258
2259(defun gnus-summary-make-menu-bar ()
2260 (gnus-turn-off-edit-menu 'summary)
2261
2262 (unless (boundp 'gnus-summary-misc-menu)
2263
2264 (easy-menu-define
23f87bed
MB
2265 gnus-summary-kill-menu gnus-summary-mode-map ""
2266 (cons
2267 "Score"
2268 (nconc
2269 (list
2270 ["Customize" gnus-score-customize t])
2271 (gnus-make-score-map 'increase)
2272 (gnus-make-score-map 'lower)
2273 '(("Mark"
2274 ["Kill below" gnus-summary-kill-below t]
2275 ["Mark above" gnus-summary-mark-above t]
2276 ["Tick above" gnus-summary-tick-above t]
2277 ["Clear above" gnus-summary-clear-above t])
2278 ["Current score" gnus-summary-current-score t]
2279 ["Set score" gnus-summary-set-score t]
2280 ["Switch current score file..." gnus-score-change-score-file t]
2281 ["Set mark below..." gnus-score-set-mark-below t]
2282 ["Set expunge below..." gnus-score-set-expunge-below t]
2283 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2284 ["Edit score file..." gnus-score-edit-file t]
23f87bed
MB
2285 ["Trace score" gnus-score-find-trace t]
2286 ["Find words" gnus-score-find-favourite-words t]
2287 ["Rescore buffer" gnus-summary-rescore t]
2288 ["Increase score..." gnus-summary-increase-score t]
2289 ["Lower score..." gnus-summary-lower-score t]))))
2290
2291 ;; Define both the Article menu in the summary buffer and the
2292 ;; equivalent Commands menu in the article buffer here for
2293 ;; consistency.
6748645f 2294 (let ((innards
23f87bed
MB
2295 `(("Hide"
2296 ["All" gnus-article-hide t]
2297 ["Headers" gnus-article-hide-headers t]
2298 ["Signature" gnus-article-hide-signature t]
2299 ["Citation" gnus-article-hide-citation t]
16409b0b 2300 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2301 ["Banner" gnus-article-strip-banner t]
23f87bed
MB
2302 ["Boring headers" gnus-article-hide-boring-headers t])
2303 ("Highlight"
2304 ["All" gnus-article-highlight t]
2305 ["Headers" gnus-article-highlight-headers t]
2306 ["Signature" gnus-article-highlight-signature t]
2307 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2308 ("MIME"
2309 ["Words" gnus-article-decode-mime-words t]
2310 ["Charset" gnus-article-decode-charset t]
2311 ["QP" gnus-article-de-quoted-unreadable t]
2312 ["Base64" gnus-article-de-base64-unreadable t]
23f87bed
MB
2313 ["View MIME buttons" gnus-summary-display-buttonized t]
2314 ["View all" gnus-mime-view-all-parts t]
2315 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2316 ["Encrypt body" gnus-article-encrypt-body
2317 :active (not (gnus-group-read-only-p))
2318 ,@(if (featurep 'xemacs) nil
2319 '(:help "Encrypt the message body on disk"))]
2320 ["Extract all parts..." gnus-summary-save-parts t]
2321 ("Multipart"
2322 ["Repair multipart" gnus-summary-repair-multipart t]
2323 ["Pipe part..." gnus-article-pipe-part t]
2324 ["Inline part" gnus-article-inline-part t]
01c52d31 2325 ["View part as type..." gnus-article-view-part-as-type t]
23f87bed
MB
2326 ["Encrypt body" gnus-article-encrypt-body
2327 :active (not (gnus-group-read-only-p))
2328 ,@(if (featurep 'xemacs) nil
2329 '(:help "Encrypt the message body on disk"))]
2330 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2331 ["View HTML parts in browser" gnus-article-browse-html-article t]
23f87bed
MB
2332 ["View part with charset..." gnus-article-view-part-as-charset t]
2333 ["Copy part" gnus-article-copy-part t]
2334 ["Save part..." gnus-article-save-part t]
2335 ["View part" gnus-article-view-part t]))
2336 ("Date"
2337 ["Local" gnus-article-date-local t]
2338 ["ISO8601" gnus-article-date-iso8601 t]
2339 ["UT" gnus-article-date-ut t]
2340 ["Original" gnus-article-date-original t]
2341 ["Lapsed" gnus-article-date-lapsed t]
2342 ["User-defined" gnus-article-date-user t])
2343 ("Display"
2344 ["Remove images" gnus-article-remove-images t]
2345 ["Toggle smiley" gnus-treat-smiley t]
2346 ["Show X-Face" gnus-article-display-x-face t]
2347 ["Show picons in From" gnus-treat-from-picon t]
2348 ["Show picons in mail headers" gnus-treat-mail-picon t]
2349 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2350 ("View as different encoding"
2351 ,@(gnus-summary-menu-split
2352 (mapcar
2353 (lambda (cs)
2354 ;; Since easymenu under Emacs doesn't allow
2355 ;; lambda forms for menu commands, we should
2356 ;; provide intern'ed function symbols.
2357 (let ((command (intern (format "\
2358gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2359 (fset command
2360 `(lambda ()
2361 (interactive)
2362 (let ((gnus-summary-show-article-charset-alist
2363 '((1 . ,cs))))
2364 (gnus-summary-show-article 1))))
2365 `[,(symbol-name cs) ,command t]))
2366 (sort (if (fboundp 'coding-system-list)
2367 (coding-system-list)
2368 (mapcar 'car mm-mime-mule-charset-alist))
2369 'string<)))))
2370 ("Washing"
2371 ("Remove Blanks"
2372 ["Leading" gnus-article-strip-leading-blank-lines t]
2373 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2374 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2375 ["All of the above" gnus-article-strip-blank-lines t]
2376 ["All" gnus-article-strip-all-blank-lines t]
2377 ["Leading space" gnus-article-strip-leading-space t]
2378 ["Trailing space" gnus-article-strip-trailing-space t]
2379 ["Leading space in headers"
2380 gnus-article-remove-leading-whitespace t])
2381 ["Overstrike" gnus-article-treat-overstrike t]
2382 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2383 ["Emphasis" gnus-article-emphasize t]
2384 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2385 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2386 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2387 ["Capitalize sentences" gnus-article-capitalize-sentences t]
23f87bed
MB
2388 ["Remove CR" gnus-article-remove-cr t]
2389 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2390 ["Base64" gnus-article-de-base64-unreadable t]
2391 ["Rot 13" gnus-summary-caesar-message
2392 ,@(if (featurep 'xemacs) '(t)
2393 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2394 ["De-IDNA" gnus-summary-idna-message t]
23f87bed
MB
2395 ["Morse decode" gnus-summary-morse-message t]
2396 ["Unix pipe..." gnus-summary-pipe-message t]
2397 ["Add buttons" gnus-article-add-buttons t]
2398 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2399 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2400 ["Verbose header" gnus-summary-verbose-headers t]
2401 ["Toggle header" gnus-summary-toggle-header t]
2402 ["Unfold headers" gnus-article-treat-unfold-headers t]
2403 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2404 ["Html" gnus-article-wash-html t]
23f87bed
MB
2405 ["Unsplit URLs" gnus-article-unsplit-urls t]
2406 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2407 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2408 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
MB
2409 ("(Outlook) Deuglify"
2410 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2411 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2412 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2413 ["Full (Outlook) deuglify"
2414 gnus-article-outlook-deuglify-article t])
2415 )
2416 ("Output"
2417 ["Save in default format..." gnus-summary-save-article
2418 ,@(if (featurep 'xemacs) '(t)
2419 '(:help "Save article using default method"))]
2420 ["Save in file..." gnus-summary-save-article-file
2421 ,@(if (featurep 'xemacs) '(t)
2422 '(:help "Save article in file"))]
2423 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2424 ["Save in MH folder..." gnus-summary-save-article-folder t]
2425 ["Save in VM folder..." gnus-summary-save-article-vm t]
2426 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2427 ["Save body in file..." gnus-summary-save-article-body-file t]
2428 ["Pipe through a filter..." gnus-summary-pipe-output t]
2429 ["Add to SOUP packet" gnus-soup-add-article t]
2430 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
MB
2431 ["Print" gnus-summary-print-article
2432 ,@(if (featurep 'xemacs) '(t)
2433 '(:help "Generate and print a PostScript image"))])
2434 ("Copy, move,... (Backend)"
707f2b38 2435 ,@(if (featurep 'xemacs) nil
531e5812 2436 '(:help "Copying, moving, expiring articles..."))
23f87bed
MB
2437 ["Respool article..." gnus-summary-respool-article t]
2438 ["Move article..." gnus-summary-move-article
2439 (gnus-check-backend-function
2440 'request-move-article gnus-newsgroup-name)]
2441 ["Copy article..." gnus-summary-copy-article t]
2442 ["Crosspost article..." gnus-summary-crosspost-article
2443 (gnus-check-backend-function
2444 'request-replace-article gnus-newsgroup-name)]
2445 ["Import file..." gnus-summary-import-article
2446 (gnus-check-backend-function
2447 'request-accept-article gnus-newsgroup-name)]
2448 ["Create article..." gnus-summary-create-article
2449 (gnus-check-backend-function
2450 'request-accept-article gnus-newsgroup-name)]
2451 ["Check if posted" gnus-summary-article-posted-p t]
2452 ["Edit article" gnus-summary-edit-article
2453 (not (gnus-group-read-only-p))]
2454 ["Delete article" gnus-summary-delete-article
2455 (gnus-check-backend-function
2456 'request-expire-articles gnus-newsgroup-name)]
2457 ["Query respool" gnus-summary-respool-query t]
6748645f 2458 ["Trace respool" gnus-summary-respool-trace t]
23f87bed
MB
2459 ["Delete expirable articles" gnus-summary-expire-articles-now
2460 (gnus-check-backend-function
2461 'request-expire-articles gnus-newsgroup-name)])
2462 ("Extract"
2463 ["Uudecode" gnus-uu-decode-uu
2464 ,@(if (featurep 'xemacs) '(t)
2465 '(:help "Decode uuencoded article(s)"))]
2466 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2467 ["Unshar" gnus-uu-decode-unshar t]
2468 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2469 ["Save" gnus-uu-decode-save t]
2470 ["Binhex" gnus-uu-decode-binhex t]
2471 ["Postscript" gnus-uu-decode-postscript t]
2472 ["All MIME parts" gnus-summary-save-parts t])
2473 ("Cache"
2474 ["Enter article" gnus-cache-enter-article t]
2475 ["Remove article" gnus-cache-remove-article t])
16409b0b 2476 ["Translate" gnus-article-babel t]
23f87bed 2477 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2478 ["Make article buffer sticky" gnus-sticky-article t]
23f87bed
MB
2479 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2480 ["Isearch article..." gnus-summary-isearch-article t]
2481 ["Beginning of the article" gnus-summary-beginning-of-article t]
2482 ["End of the article" gnus-summary-end-of-article t]
2483 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2484 ["Fetch referenced articles" gnus-summary-refer-references t]
2485 ["Fetch current thread" gnus-summary-refer-thread t]
2486 ["Fetch article with id..." gnus-summary-refer-article t]
2487 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2488 ["Redisplay" gnus-summary-show-article t]
2489 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2490 (easy-menu-define
23f87bed
MB
2491 gnus-summary-article-menu gnus-summary-mode-map ""
2492 (cons "Article" innards))
6748645f 2493
1653df0f
SZ
2494 (if (not (keymapp gnus-summary-article-menu))
2495 (easy-menu-define
2496 gnus-article-commands-menu gnus-article-mode-map ""
2497 (cons "Commands" innards))
2498 ;; in Emacs, don't share menu.
a1506d29 2499 (setq gnus-article-commands-menu
1653df0f
SZ
2500 (copy-keymap gnus-summary-article-menu))
2501 (define-key gnus-article-mode-map [menu-bar commands]
2502 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2503
2504 (easy-menu-define
23f87bed
MB
2505 gnus-summary-thread-menu gnus-summary-mode-map ""
2506 '("Threads"
2507 ["Find all messages in thread" gnus-summary-refer-thread t]
2508 ["Toggle threading" gnus-summary-toggle-threads t]
2509 ["Hide threads" gnus-summary-hide-all-threads t]
2510 ["Show threads" gnus-summary-show-all-threads t]
2511 ["Hide thread" gnus-summary-hide-thread t]
2512 ["Show thread" gnus-summary-show-thread t]
2513 ["Go to next thread" gnus-summary-next-thread t]
2514 ["Go to previous thread" gnus-summary-prev-thread t]
2515 ["Go down thread" gnus-summary-down-thread t]
2516 ["Go up thread" gnus-summary-up-thread t]
2517 ["Top of thread" gnus-summary-top-thread t]
2518 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2519 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2520 ["Lower thread score" gnus-summary-lower-thread t]
2521 ["Raise thread score" gnus-summary-raise-thread t]
2522 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2523
2524 (easy-menu-define
23f87bed
MB
2525 gnus-summary-post-menu gnus-summary-mode-map ""
2526 `("Post"
2527 ["Send a message (mail or news)" gnus-summary-post-news
2528 ,@(if (featurep 'xemacs) '(t)
531e5812 2529 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2530 ["Followup" gnus-summary-followup
2531 ,@(if (featurep 'xemacs) '(t)
2532 '(:help "Post followup to this article"))]
2533 ["Followup and yank" gnus-summary-followup-with-original
2534 ,@(if (featurep 'xemacs) '(t)
2535 '(:help "Post followup to this article, quoting its contents"))]
2536 ["Supersede article" gnus-summary-supersede-article t]
2537 ["Cancel article" gnus-summary-cancel-article
2538 ,@(if (featurep 'xemacs) '(t)
2539 '(:help "Cancel an article you posted"))]
2540 ["Reply" gnus-summary-reply t]
2541 ["Reply and yank" gnus-summary-reply-with-original t]
2542 ["Wide reply" gnus-summary-wide-reply t]
2543 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2544 ,@(if (featurep 'xemacs) '(t)
2545 '(:help "Mail a reply, quoting this article"))]
2546 ["Very wide reply" gnus-summary-very-wide-reply t]
2547 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2548 ,@(if (featurep 'xemacs) '(t)
2549 '(:help "Mail a very wide reply, quoting this article"))]
2550 ["Mail forward" gnus-summary-mail-forward t]
2551 ["Post forward" gnus-summary-post-forward t]
2552 ["Digest and mail" gnus-uu-digest-mail-forward t]
2553 ["Digest and post" gnus-uu-digest-post-forward t]
2554 ["Resend message" gnus-summary-resend-message t]
2555 ["Resend message edit" gnus-summary-resend-message-edit t]
2556 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2557 ["Send a mail" gnus-summary-mail-other-window t]
2558 ["Create a local message" gnus-summary-news-other-window t]
2559 ["Uuencode and post" gnus-uu-post-news
2560 ,@(if (featurep 'xemacs) '(t)
2561 '(:help "Post a uuencoded article"))]
2562 ["Followup via news" gnus-summary-followup-to-mail t]
2563 ["Followup via news and yank"
2564 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2565 ["Strip signature on reply"
2566 (lambda ()
2567 (interactive)
2568 (if (not (memq message-cite-function
2569 '(message-cite-original-without-signature
2570 message-cite-original)))
2571 ;; Stupid workaround for XEmacs not honoring :visible.
2572 (message "Can't toggle this value of `message-cite-function'")
2573 (setq message-cite-function
2574 (if (eq message-cite-function
2575 'message-cite-original-without-signature)
2576 'message-cite-original
2577 'message-cite-original-without-signature))))
2578 ;; XEmacs barfs on :visible.
2579 ,@(if (featurep 'xemacs) nil
2580 '(:visible (memq message-cite-function
2581 '(message-cite-original-without-signature
2582 message-cite-original))))
2583 :style toggle
2584 :selected (eq message-cite-function
2585 'message-cite-original-without-signature)
2586 ,@(if (featurep 'xemacs) nil
2587 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2588 ;;("Draft"
2589 ;;["Send" gnus-summary-send-draft t]
2590 ;;["Send bounced" gnus-resend-bounced-mail t])
2591 ))
2592
2593 (cond
2594 ((not (keymapp gnus-summary-post-menu))
2595 (setq gnus-article-post-menu gnus-summary-post-menu))
2596 ((not gnus-article-post-menu)
2597 ;; Don't share post menu.
2598 (setq gnus-article-post-menu
2599 (copy-keymap gnus-summary-post-menu))))
2600 (define-key gnus-article-mode-map [menu-bar post]
2601 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2602
2603 (easy-menu-define
23f87bed
MB
2604 gnus-summary-misc-menu gnus-summary-mode-map ""
2605 `("Gnus"
2606 ("Mark Read"
2607 ["Mark as read" gnus-summary-mark-as-read-forward t]
2608 ["Mark same subject and select"
2609 gnus-summary-kill-same-subject-and-select t]
2610 ["Mark same subject" gnus-summary-kill-same-subject t]
2611 ["Catchup" gnus-summary-catchup
2612 ,@(if (featurep 'xemacs) '(t)
2613 '(:help "Mark unread articles in this group as read"))]
2614 ["Catchup all" gnus-summary-catchup-all t]
2615 ["Catchup to here" gnus-summary-catchup-to-here t]
2616 ["Catchup from here" gnus-summary-catchup-from-here t]
2617 ["Catchup region" gnus-summary-mark-region-as-read
2618 (gnus-mark-active-p)]
2619 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2620 ("Mark Various"
2621 ["Tick" gnus-summary-tick-article-forward t]
2622 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2623 ["Remove marks" gnus-summary-clear-mark-forward t]
2624 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2625 ["Set bookmark" gnus-summary-set-bookmark t]
2626 ["Remove bookmark" gnus-summary-remove-bookmark t])
8f7abae3
MB
2627 ("Registry Mark"
2628 ["Important" gnus-registry-set-article-Important-mark t]
2629 ["Not Important" gnus-registry-remove-article-Important-mark t]
2630 ["Work" gnus-registry-set-article-Work-mark t]
2631 ["Not Work" gnus-registry-remove-article-Work-mark t]
2632 ["Later" gnus-registry-set-article-Later-mark t]
2633 ["Not Later" gnus-registry-remove-article-Later-mark t]
2634 ["Personal" gnus-registry-set-article-Personal-mark t]
2635 ["Not Personal" gnus-registry-remove-article-Personal-mark t]
2636 ["To Do" gnus-registry-set-article-To-Do-mark t]
2637 ["Not To Do" gnus-registry-remove-article-To-Do-mark t])
23f87bed
MB
2638 ("Limit to"
2639 ["Marks..." gnus-summary-limit-to-marks t]
2640 ["Subject..." gnus-summary-limit-to-subject t]
2641 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2642 ["Recipient..." gnus-summary-limit-to-recipient t]
2643 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2644 ["Age..." gnus-summary-limit-to-age t]
2645 ["Extra..." gnus-summary-limit-to-extra t]
2646 ["Score..." gnus-summary-limit-to-score t]
2647 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2648 ["Unread" gnus-summary-limit-to-unread t]
2649 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2650 ["Singletons" gnus-summary-limit-to-singletons t]
2651 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2652 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2653 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2654 ["Pop limit" gnus-summary-pop-limit t]
2655 ["Show dormant" gnus-summary-limit-include-dormant t]
2656 ["Hide childless dormant"
2657 gnus-summary-limit-exclude-childless-dormant t]
2658 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2659 ["Hide marked" gnus-summary-limit-exclude-marks t]
2660 ["Show expunged" gnus-summary-limit-include-expunged t])
2661 ("Process Mark"
2662 ["Set mark" gnus-summary-mark-as-processable t]
2663 ["Remove mark" gnus-summary-unmark-as-processable t]
2664 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2665 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2666 ["Mark above" gnus-uu-mark-over t]
2667 ["Mark series" gnus-uu-mark-series t]
2668 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2669 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2670 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2671 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2672 ["Mark all" gnus-uu-mark-all t]
2673 ["Mark buffer" gnus-uu-mark-buffer t]
2674 ["Mark sparse" gnus-uu-mark-sparse t]
2675 ["Mark thread" gnus-uu-mark-thread t]
2676 ["Unmark thread" gnus-uu-unmark-thread t]
2677 ("Process Mark Sets"
2678 ["Kill" gnus-summary-kill-process-mark t]
2679 ["Yank" gnus-summary-yank-process-mark
2680 gnus-newsgroup-process-stack]
2681 ["Save" gnus-summary-save-process-mark t]
2682 ["Run command on marked..." gnus-summary-universal-argument t]))
2683 ("Scroll article"
2684 ["Page forward" gnus-summary-next-page
2685 ,@(if (featurep 'xemacs) '(t)
2686 '(:help "Show next page of article"))]
2687 ["Page backward" gnus-summary-prev-page
2688 ,@(if (featurep 'xemacs) '(t)
2689 '(:help "Show previous page of article"))]
2690 ["Line forward" gnus-summary-scroll-up t])
2691 ("Move"
2692 ["Next unread article" gnus-summary-next-unread-article t]
2693 ["Previous unread article" gnus-summary-prev-unread-article t]
2694 ["Next article" gnus-summary-next-article t]
2695 ["Previous article" gnus-summary-prev-article t]
2696 ["Next unread subject" gnus-summary-next-unread-subject t]
2697 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2698 ["Next article same subject" gnus-summary-next-same-subject t]
2699 ["Previous article same subject" gnus-summary-prev-same-subject t]
2700 ["First unread article" gnus-summary-first-unread-article t]
2701 ["Best unread article" gnus-summary-best-unread-article t]
2702 ["Go to subject number..." gnus-summary-goto-subject t]
2703 ["Go to article number..." gnus-summary-goto-article t]
2704 ["Go to the last article" gnus-summary-goto-last-article t]
2705 ["Pop article off history" gnus-summary-pop-article t])
2706 ("Sort"
2707 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2708 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2709 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2710 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2711 ["Sort by subject" gnus-summary-sort-by-subject t]
2712 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2713 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2714 ["Sort by score" gnus-summary-sort-by-score t]
2715 ["Sort by lines" gnus-summary-sort-by-lines t]
2716 ["Sort by characters" gnus-summary-sort-by-chars t]
2717 ["Randomize" gnus-summary-sort-by-random t]
2718 ["Original sort" gnus-summary-sort-by-original t])
2719 ("Help"
2720 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2721 ["Describe group" gnus-summary-describe-group t]
2722 ["Fetch charter" gnus-group-fetch-charter
2723 ,@(if (featurep 'xemacs) nil
2724 '(:help "Display the charter of the current group"))]
2725 ["Fetch control message" gnus-group-fetch-control
2726 ,@(if (featurep 'xemacs) nil
2727 '(:help "Display the archived control message for the current group"))]
2728 ["Read manual" gnus-info-find-node t])
2729 ("Modes"
2730 ["Pick and read" gnus-pick-mode t]
2731 ["Binary" gnus-binary-mode t])
2732 ("Regeneration"
2733 ["Regenerate" gnus-summary-prepare t]
2734 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2735 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2736 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2737 ["Toggle threading" gnus-summary-toggle-threads t])
2738 ["See old articles" gnus-summary-insert-old-articles t]
2739 ["See new articles" gnus-summary-insert-new-articles t]
2740 ["Filter articles..." gnus-summary-execute-command t]
2741 ["Run command on articles..." gnus-summary-universal-argument t]
2742 ["Search articles forward..." gnus-summary-search-article-forward t]
2743 ["Search articles backward..." gnus-summary-search-article-backward t]
2744 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2745 ["Expand window" gnus-summary-expand-window t]
2746 ["Expire expirable articles" gnus-summary-expire-articles
2747 (gnus-check-backend-function
2748 'request-expire-articles gnus-newsgroup-name)]
2749 ["Edit local kill file" gnus-summary-edit-local-kill t]
2750 ["Edit main kill file" gnus-summary-edit-global-kill t]
2751 ["Edit group parameters" gnus-summary-edit-parameters t]
2752 ["Customize group parameters" gnus-summary-customize-parameters t]
2753 ["Send a bug report" gnus-bug t]
2754 ("Exit"
2755 ["Catchup and exit" gnus-summary-catchup-and-exit
2756 ,@(if (featurep 'xemacs) '(t)
2757 '(:help "Mark unread articles in this group as read, then exit"))]
2758 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2759 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2760 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2761 ["Exit group" gnus-summary-exit
2762 ,@(if (featurep 'xemacs) '(t)
2763 '(:help "Exit current group, return to group selection mode"))]
2764 ["Exit group without updating" gnus-summary-exit-no-update t]
2765 ["Exit and goto next group" gnus-summary-next-group t]
2766 ["Exit and goto prev group" gnus-summary-prev-group t]
2767 ["Reselect group" gnus-summary-reselect-current-group t]
2768 ["Rescan group" gnus-summary-rescan-group t]
2769 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2770
6748645f 2771 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2772
60bd5589
DL
2773(defvar gnus-summary-tool-bar-map nil)
2774
18c06a99
RS
2775;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2776;; affect _new_ message buffers. We might add a function that walks thru all
2777;; summary-mode buffers and force the update.
2778(defun gnus-summary-tool-bar-update (&optional symbol value)
2779 "Update summary mode toolbar.
2780Setter function for custom variables."
2781 (setq-default gnus-summary-tool-bar-map nil)
2782 (when symbol
2783 ;; When used as ":set" function:
2784 (set-default symbol value))
2785 (when (gnus-buffer-live-p gnus-summary-buffer)
2786 (with-current-buffer gnus-summary-buffer
2787 (gnus-summary-make-tool-bar))))
2788
2789(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2790 'gnus-summary-tool-bar-gnome
2791 'gnus-summary-tool-bar-retro)
2792 "Specifies the Gnus summary tool bar.
2793
2794It can be either a list or a symbol refering to a list. See
2795`gmm-tool-bar-from-list' for the format of the list. The
2796default key map is `gnus-summary-mode-map'.
2797
2798Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2799`gnus-summary-tool-bar-retro'."
2800 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2801 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2802 (repeat :tag "User defined list" gmm-tool-bar-item)
2803 (symbol))
330f707b 2804 :version "23.1" ;; No Gnus
18c06a99
RS
2805 :initialize 'custom-initialize-default
2806 :set 'gnus-summary-tool-bar-update
2807 :group 'gnus-summary)
2808
2809(defcustom gnus-summary-tool-bar-gnome
2810 '((gnus-summary-post-news "mail/compose" nil)
2811 (gnus-summary-insert-new-articles "mail/inbox" nil
2812 :visible (or (not gnus-agent)
2813 gnus-plugged))
2814 (gnus-summary-reply-with-original "mail/reply")
2815 (gnus-summary-reply "mail/reply" nil :visible nil)
2816 (gnus-summary-followup-with-original "mail/reply-all")
2817 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2818 (gnus-summary-mail-forward "mail/forward")
2819 (gnus-summary-save-article "mail/save")
2820 (gnus-summary-search-article-forward "search" nil :visible nil)
2821 (gnus-summary-print-article "print")
2822 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2823 ;; Some new commands that may need more suitable icons:
2824 (gnus-summary-save-newsrc "save" nil :visible nil)
2825 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2826 (gnus-summary-prev-article "left-arrow")
2827 (gnus-summary-next-article "right-arrow")
2828 (gnus-summary-next-page "next-page")
2829 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2830 ;;
2831 ;; Maybe some sort-by-... could be added:
2832 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2833 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2834 (gnus-summary-mark-as-expirable
2835 "delete" nil
2836 :visible (gnus-check-backend-function 'request-expire-articles
2837 gnus-newsgroup-name))
2838 (gnus-summary-mark-as-spam
2839 "mail/spam" t
2840 :visible (and (fboundp 'spam-group-ham-contents-p)
2841 (spam-group-ham-contents-p gnus-newsgroup-name))
2842 :help "Mark as spam")
2843 (gnus-summary-mark-as-read-forward
2844 "mail/not-spam" nil
2845 :visible (and (fboundp 'spam-group-spam-contents-p)
2846 (spam-group-spam-contents-p gnus-newsgroup-name)))
2847 ;;
2848 (gnus-summary-exit "exit")
2849 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2850 (gnus-info-find-node "help"))
2851 "List of functions for the summary tool bar (GNOME style).
2852
2853See `gmm-tool-bar-from-list' for the format of the list."
2854 :type '(repeat gmm-tool-bar-item)
330f707b 2855 :version "23.1" ;; No Gnus
18c06a99
RS
2856 :initialize 'custom-initialize-default
2857 :set 'gnus-summary-tool-bar-update
2858 :group 'gnus-summary)
2859
2860(defcustom gnus-summary-tool-bar-retro
2861 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2862 (gnus-summary-next-unread-article "gnus/next-ur")
2863 (gnus-summary-post-news "gnus/post")
2864 (gnus-summary-followup-with-original "gnus/fuwo")
2865 (gnus-summary-followup "gnus/followup")
2866 (gnus-summary-reply-with-original "gnus/reply-wo")
2867 (gnus-summary-reply "gnus/reply")
2868 (gnus-summary-caesar-message "gnus/rot13")
2869 (gnus-uu-decode-uu "gnus/uu-decode")
2870 (gnus-summary-save-article-file "gnus/save-aif")
2871 (gnus-summary-save-article "gnus/save-art")
2872 (gnus-uu-post-news "gnus/uu-post")
2873 (gnus-summary-catchup "gnus/catchup")
2874 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2875 (gnus-summary-exit "gnus/exit-summ")
2876 ;; Some new command that may need more suitable icons:
2877 (gnus-summary-print-article "gnus/print" nil :visible nil)
2878 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2879 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2880 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2881 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2882 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2883 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2884 ;;
2885 (gnus-info-find-node "gnus/help" nil :visible nil))
2886 "List of functions for the summary tool bar (retro look).
2887
2888See `gmm-tool-bar-from-list' for the format of the list."
2889 :type '(repeat gmm-tool-bar-item)
330f707b 2890 :version "23.1" ;; No Gnus
18c06a99
RS
2891 :initialize 'custom-initialize-default
2892 :set 'gnus-summary-tool-bar-update
2893 :group 'gnus-summary)
2894
2895(defcustom gnus-summary-tool-bar-zap-list t
2896 "List of icon items from the global tool bar.
2897These items are not displayed in the Gnus summary mode tool bar.
2898
2899See `gmm-tool-bar-from-list' for the format of the list."
2900 :type 'gmm-tool-bar-zap-list
330f707b 2901 :version "23.1" ;; No Gnus
18c06a99
RS
2902 :initialize 'custom-initialize-default
2903 :set 'gnus-summary-tool-bar-update
2904 :group 'gnus-summary)
2905
2906(defvar image-load-path)
f654fa04 2907(defvar tool-bar-map)
18c06a99
RS
2908
2909(defun gnus-summary-make-tool-bar (&optional force)
2910 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2911When FORCE, rebuild the tool bar."
2912 (when (and (not (featurep 'xemacs))
2913 (boundp 'tool-bar-mode)
2914 tool-bar-mode
2915 (or (not gnus-summary-tool-bar-map) force))
2916 (let* ((load-path
2917 (gmm-image-load-path-for-library "gnus"
2918 "mail/save.xpm"
2919 nil t))
2920 (image-load-path (cons (car load-path)
2921 (when (boundp 'image-load-path)
2922 image-load-path)))
2923 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2924 gnus-summary-tool-bar-zap-list
2925 'gnus-summary-mode-map)))
2926 (when map
2927 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2928 ;; uses it's value.
2929 (setq gnus-summary-tool-bar-map map))))
2930 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2931
eec82323
LMI
2932(defun gnus-score-set-default (var value)
2933 "A version of set that updates the GNU Emacs menu-bar."
2934 (set var value)
2935 ;; It is the message that forces the active status to be updated.
2936 (message ""))
2937
2938(defun gnus-make-score-map (type)
2939 "Make a summary score map of type TYPE."
2940 (if t
2941 nil
2942 (let ((headers '(("author" "from" string)
2943 ("subject" "subject" string)
2944 ("article body" "body" string)
2945 ("article head" "head" string)
2946 ("xref" "xref" string)
16409b0b 2947 ("extra header" "extra" string)
eec82323
LMI
2948 ("lines" "lines" number)
2949 ("followups to author" "followup" string)))
2950 (types '((number ("less than" <)
2951 ("greater than" >)
2952 ("equal" =))
2953 (string ("substring" s)
2954 ("exact string" e)
2955 ("fuzzy string" f)
2956 ("regexp" r))))
2957 (perms '(("temporary" (current-time-string))
2958 ("permanent" nil)
2959 ("immediate" now)))
2960 header)
2961 (list
2962 (apply
2963 'nconc
2964 (list
2965 (if (eq type 'lower)
2966 "Lower score"
2967 "Increase score"))
2968 (let (outh)
2969 (while headers
2970 (setq header (car headers))
2971 (setq outh
2972 (cons
2973 (apply
2974 'nconc
2975 (list (car header))
2976 (let ((ts (cdr (assoc (nth 2 header) types)))
2977 outt)
2978 (while ts
2979 (setq outt
2980 (cons
2981 (apply
2982 'nconc
2983 (list (caar ts))
2984 (let ((ps perms)
2985 outp)
2986 (while ps
2987 (setq outp
2988 (cons
2989 (vector
2990 (caar ps)
2991 (list
2992 'gnus-summary-score-entry
2993 (nth 1 header)
2994 (if (or (string= (nth 1 header)
2995 "head")
2996 (string= (nth 1 header)
2997 "body"))
2998 ""
2999 (list 'gnus-summary-header
3000 (nth 1 header)))
3001 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3002 (list 'gnus-score-delta-default
3003 nil)
eec82323
LMI
3004 (nth 1 (car ps))
3005 t)
3006 t)
3007 outp))
3008 (setq ps (cdr ps)))
3009 (list (nreverse outp))))
3010 outt))
3011 (setq ts (cdr ts)))
3012 (list (nreverse outt))))
3013 outh))
3014 (setq headers (cdr headers)))
3015 (list (nreverse outh))))))))
3016
704f1663
GM
3017
3018(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
3019
eec82323
LMI
3020\f
3021
3022(defun gnus-summary-mode (&optional group)
3023 "Major mode for reading articles.
3024
3025All normal editing commands are switched off.
3026\\<gnus-summary-mode-map>
3027Each line in this buffer represents one article. To read an
3028article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3029and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3030respectively.
3031
3032You can also post articles and send mail from this buffer. To
23f87bed 3033follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3034of an article, type `\\[gnus-summary-reply]'.
3035
3036There are approx. one gazillion commands you can execute in this
3037buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3038
3039The following commands are available:
3040
3041\\{gnus-summary-mode-map}"
3042 (interactive)
eec82323 3043 (kill-all-local-variables)
01c52d31
MB
3044 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3045 (gnus-summary-make-local-variables))
3046 (gnus-summary-make-local-variables)
3047 (setq gnus-newsgroup-name group)
60bd5589
DL
3048 (when (gnus-visual-p 'summary-menu 'menu)
3049 (gnus-summary-make-menu-bar)
3050 (gnus-summary-make-tool-bar))
eec82323
LMI
3051 (gnus-make-thread-indent-array)
3052 (gnus-simplify-mode-line)
3053 (setq major-mode 'gnus-summary-mode)
3054 (setq mode-name "Summary")
3055 (make-local-variable 'minor-mode-alist)
3056 (use-local-map gnus-summary-mode-map)
16409b0b 3057 (buffer-disable-undo)
01c52d31
MB
3058 (setq buffer-read-only t ;Disable modification
3059 show-trailing-whitespace nil)
eec82323
LMI
3060 (setq truncate-lines t)
3061 (setq selective-display t)
3062 (setq selective-display-ellipses t) ;Display `...'
3063 (gnus-summary-set-display-table)
3064 (gnus-set-default-directory)
eec82323
LMI
3065 (make-local-variable 'gnus-summary-line-format)
3066 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3067 (make-local-variable 'gnus-summary-dummy-line-format)
3068 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3069 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3070 (gnus-make-local-hook 'pre-command-hook)
6748645f 3071 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3072 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3073 (turn-on-gnus-mailing-list-mode)
87545352 3074 (mm-enable-multibyte)
eec82323
LMI
3075 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3076 (gnus-update-summary-mark-positions))
3077
3078(defun gnus-summary-make-local-variables ()
3079 "Make all the local summary buffer variables."
16409b0b
GM
3080 (let (global)
3081 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3082 (if (consp local)
3083 (progn
3084 (if (eq (cdr local) 'global)
3085 ;; Copy the global value of the variable.
3086 (setq global (symbol-value (car local)))
3087 ;; Use the value from the list.
3088 (setq global (eval (cdr local))))
16409b0b 3089 (set (make-local-variable (car local)) global))
eec82323 3090 ;; Simple nil-valued local variable.
16409b0b 3091 (set (make-local-variable local) nil)))))
eec82323
LMI
3092
3093(defun gnus-summary-clear-local-variables ()
3094 (let ((locals gnus-summary-local-variables))
3095 (while locals
3096 (if (consp (car locals))
01c52d31 3097 (and (symbolp (caar locals))
eec82323 3098 (set (caar locals) nil))
01c52d31 3099 (and (symbolp (car locals))
eec82323
LMI
3100 (set (car locals) nil)))
3101 (setq locals (cdr locals)))))
3102
3103;; Summary data functions.
3104
3105(defmacro gnus-data-number (data)
3106 `(car ,data))
3107
3108(defmacro gnus-data-set-number (data number)
3109 `(setcar ,data ,number))
3110
3111(defmacro gnus-data-mark (data)
3112 `(nth 1 ,data))
3113
3114(defmacro gnus-data-set-mark (data mark)
3115 `(setcar (nthcdr 1 ,data) ,mark))
3116
3117(defmacro gnus-data-pos (data)
3118 `(nth 2 ,data))
3119
3120(defmacro gnus-data-set-pos (data pos)
3121 `(setcar (nthcdr 2 ,data) ,pos))
3122
3123(defmacro gnus-data-header (data)
3124 `(nth 3 ,data))
3125
3126(defmacro gnus-data-set-header (data header)
3127 `(setf (nth 3 ,data) ,header))
3128
3129(defmacro gnus-data-level (data)
3130 `(nth 4 ,data))
3131
3132(defmacro gnus-data-unread-p (data)
3133 `(= (nth 1 ,data) gnus-unread-mark))
3134
3135(defmacro gnus-data-read-p (data)
3136 `(/= (nth 1 ,data) gnus-unread-mark))
3137
3138(defmacro gnus-data-pseudo-p (data)
3139 `(consp (nth 3 ,data)))
3140
3141(defmacro gnus-data-find (number)
3142 `(assq ,number gnus-newsgroup-data))
3143
3144(defmacro gnus-data-find-list (number &optional data)
3145 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3146 (memq (assq ,number bdata)
3147 bdata)))
3148
3149(defmacro gnus-data-make (number mark pos header level)
3150 `(list ,number ,mark ,pos ,header ,level))
3151
3152(defun gnus-data-enter (after-article number mark pos header level offset)
3153 (let ((data (gnus-data-find-list after-article)))
3154 (unless data
3155 (error "No such article: %d" after-article))
3156 (setcdr data (cons (gnus-data-make number mark pos header level)
3157 (cdr data)))
3158 (setq gnus-newsgroup-data-reverse nil)
3159 (gnus-data-update-list (cddr data) offset)))
3160
3161(defun gnus-data-enter-list (after-article list &optional offset)
3162 (when list
3163 (let ((data (and after-article (gnus-data-find-list after-article)))
3164 (ilist list))
6748645f
LMI
3165 (if (not (or data
3166 after-article))
3167 (let ((odata gnus-newsgroup-data))
3168 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3169 (when offset
6748645f 3170 (gnus-data-update-list odata offset)))
01c52d31 3171 ;; Find the last element in the list to be spliced into the main
6748645f 3172 ;; list.
01c52d31 3173 (setq list (last list))
6748645f
LMI
3174 (if (not data)
3175 (progn
3176 (setcdr list gnus-newsgroup-data)
3177 (setq gnus-newsgroup-data ilist)
3178 (when offset
3179 (gnus-data-update-list (cdr list) offset)))
3180 (setcdr list (cdr data))
3181 (setcdr data ilist)
3182 (when offset
3183 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3184 (setq gnus-newsgroup-data-reverse nil))))
3185
3186(defun gnus-data-remove (article &optional offset)
3187 (let ((data gnus-newsgroup-data))
3188 (if (= (gnus-data-number (car data)) article)
3189 (progn
3190 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3191 gnus-newsgroup-data-reverse nil)
3192 (when offset
3193 (gnus-data-update-list gnus-newsgroup-data offset)))
3194 (while (cdr data)
3195 (when (= (gnus-data-number (cadr data)) article)
3196 (setcdr data (cddr data))
3197 (when offset
3198 (gnus-data-update-list (cdr data) offset))
3199 (setq data nil
3200 gnus-newsgroup-data-reverse nil))
3201 (setq data (cdr data))))))
3202
3203(defmacro gnus-data-list (backward)
3204 `(if ,backward
3205 (or gnus-newsgroup-data-reverse
3206 (setq gnus-newsgroup-data-reverse
3207 (reverse gnus-newsgroup-data)))
3208 gnus-newsgroup-data))
3209
3210(defun gnus-data-update-list (data offset)
3211 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3212 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3213 (while data
3214 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3215 (setq data (cdr data))))
3216
eec82323
LMI
3217(defun gnus-summary-article-pseudo-p (article)
3218 "Say whether this article is a pseudo article or not."
3219 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3220
3221(defmacro gnus-summary-article-sparse-p (article)
3222 "Say whether this article is a sparse article or not."
a8151ef7 3223 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3224
3225(defmacro gnus-summary-article-ancient-p (article)
3226 "Say whether this article is a sparse article or not."
3227 `(memq ,article gnus-newsgroup-ancient))
3228
3229(defun gnus-article-parent-p (number)
3230 "Say whether this article is a parent or not."
3231 (let ((data (gnus-data-find-list number)))
23f87bed 3232 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3233 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3234 (gnus-data-level (nth 1 data))))))
3235
3236(defun gnus-article-children (number)
3237 "Return a list of all children to NUMBER."
3238 (let* ((data (gnus-data-find-list number))
3239 (level (gnus-data-level (car data)))
3240 children)
3241 (setq data (cdr data))
3242 (while (and data
3243 (= (gnus-data-level (car data)) (1+ level)))
3244 (push (gnus-data-number (car data)) children)
3245 (setq data (cdr data)))
3246 children))
3247
3248(defmacro gnus-summary-skip-intangible ()
3249 "If the current article is intangible, then jump to a different article."
3250 '(let ((to (get-text-property (point) 'gnus-intangible)))
3251 (and to (gnus-summary-goto-subject to))))
3252
3253(defmacro gnus-summary-article-intangible-p ()
3254 "Say whether this article is intangible or not."
3255 '(get-text-property (point) 'gnus-intangible))
3256
3257(defun gnus-article-read-p (article)
3258 "Say whether ARTICLE is read or not."
3259 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3260 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3261 (memq article gnus-newsgroup-unreads)
3262 (memq article gnus-newsgroup-unselected)
3263 (memq article gnus-newsgroup-dormant))))
3264
3265;; Some summary mode macros.
3266
3267(defmacro gnus-summary-article-number ()
3268 "The article number of the article on the current line.
8f688cb0 3269If there isn't an article number here, then we return the current
eec82323
LMI
3270article number."
3271 '(progn
3272 (gnus-summary-skip-intangible)
3273 (or (get-text-property (point) 'gnus-number)
3274 (gnus-summary-last-subject))))
3275
3276(defmacro gnus-summary-article-header (&optional number)
6748645f 3277 "Return the header of article NUMBER."
eec82323
LMI
3278 `(gnus-data-header (gnus-data-find
3279 ,(or number '(gnus-summary-article-number)))))
3280
3281(defmacro gnus-summary-thread-level (&optional number)
6748645f 3282 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3283 `(if (and (eq gnus-summary-make-false-root 'dummy)
3284 (get-text-property (point) 'gnus-intangible))
3285 0
3286 (gnus-data-level (gnus-data-find
3287 ,(or number '(gnus-summary-article-number))))))
3288
3289(defmacro gnus-summary-article-mark (&optional number)
6748645f 3290 "Return the mark of article NUMBER."
eec82323
LMI
3291 `(gnus-data-mark (gnus-data-find
3292 ,(or number '(gnus-summary-article-number)))))
3293
3294(defmacro gnus-summary-article-pos (&optional number)
6748645f 3295 "Return the position of the line of article NUMBER."
eec82323
LMI
3296 `(gnus-data-pos (gnus-data-find
3297 ,(or number '(gnus-summary-article-number)))))
3298
3299(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3300(defmacro gnus-summary-article-subject (&optional number)
3301 "Return current subject string or nil if nothing."
3302 `(let ((headers
3303 ,(if number
3304 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3305 '(gnus-data-header (assq (gnus-summary-article-number)
3306 gnus-newsgroup-data)))))
3307 (and headers
3308 (vectorp headers)
3309 (mail-header-subject headers))))
3310
3311(defmacro gnus-summary-article-score (&optional number)
3312 "Return current article score."
3313 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3314 gnus-newsgroup-scored))
3315 gnus-summary-default-score 0))
3316
3317(defun gnus-summary-article-children (&optional number)
6748645f 3318 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3319 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3320 (level (gnus-data-level (car data)))
3321 l children)
3322 (while (and (setq data (cdr data))
3323 (> (setq l (gnus-data-level (car data))) level))
3324 (and (= (1+ level) l)
3325 (push (gnus-data-number (car data))
3326 children)))
3327 (nreverse children)))
3328
3329(defun gnus-summary-article-parent (&optional number)
6748645f 3330 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3331 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3332 (gnus-data-list t)))
3333 (level (gnus-data-level (car data))))
3334 (if (zerop level)
3335 () ; This is a root.
3336 ;; We search until we find an article with a level less than
3337 ;; this one. That function has to be the parent.
3338 (while (and (setq data (cdr data))
3339 (not (< (gnus-data-level (car data)) level))))
3340 (and data (gnus-data-number (car data))))))
3341
3342(defun gnus-unread-mark-p (mark)
3343 "Say whether MARK is the unread mark."
3344 (= mark gnus-unread-mark))
3345
3346(defun gnus-read-mark-p (mark)
3347 "Say whether MARK is one of the marks that mark as read.
3348This is all marks except unread, ticked, dormant, and expirable."
3349 (not (or (= mark gnus-unread-mark)
3350 (= mark gnus-ticked-mark)
23f87bed 3351 (= mark gnus-spam-mark)
eec82323
LMI
3352 (= mark gnus-dormant-mark)
3353 (= mark gnus-expirable-mark))))
3354
3355(defmacro gnus-article-mark (number)
6748645f
LMI
3356 "Return the MARK of article NUMBER.
3357This macro should only be used when computing the mark the \"first\"
3358time; i.e., when generating the summary lines. After that,
3359`gnus-summary-article-mark' should be used to examine the
3360marks of articles."
eec82323 3361 `(cond
6748645f 3362 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3363 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3364 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3365 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3366 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3367 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3368 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3369 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3370 gnus-ancient-mark))))
3371
3372;; Saving hidden threads.
3373
eec82323
LMI
3374(defmacro gnus-save-hidden-threads (&rest forms)
3375 "Save hidden threads, eval FORMS, and restore the hidden threads."
3376 (let ((config (make-symbol "config")))
3377 `(let ((,config (gnus-hidden-threads-configuration)))
3378 (unwind-protect
3379 (save-excursion
3380 ,@forms)
3381 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3382(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3383(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3384
107ecebb
AS
3385(defun gnus-data-compute-positions ()
3386 "Compute the positions of all articles."
3387 (setq gnus-newsgroup-data-reverse nil)
3388 (let ((data gnus-newsgroup-data))
3389 (save-excursion
3390 (gnus-save-hidden-threads
3391 (gnus-summary-show-all-threads)
3392 (goto-char (point-min))
3393 (while data
3394 (while (get-text-property (point) 'gnus-intangible)
3395 (forward-line 1))
3396 (gnus-data-set-pos (car data) (+ (point) 3))
3397 (setq data (cdr data))
3398 (forward-line 1))))))
3399
16409b0b
GM
3400(defun gnus-hidden-threads-configuration ()
3401 "Return the current hidden threads configuration."
3402 (save-excursion
3403 (let (config)
3404 (goto-char (point-min))
3405 (while (search-forward "\r" nil t)
3406 (push (1- (point)) config))
3407 config)))
3408
3409(defun gnus-restore-hidden-threads-configuration (config)
3410 "Restore hidden threads configuration from CONFIG."
3411 (save-excursion
c7a91ce1 3412 (let (point (inhibit-read-only t))
16409b0b
GM
3413 (while (setq point (pop config))
3414 (when (and (< point (point-max))
3415 (goto-char point)
3416 (eq (char-after) ?\n))
3417 (subst-char-in-region point (1+ point) ?\n ?\r))))))
3418
eec82323
LMI
3419;; Various summary mode internalish functions.
3420
3421(defun gnus-mouse-pick-article (e)
3422 (interactive "e")
3423 (mouse-set-point e)
3424 (gnus-summary-next-page nil t))
3425
3426(defun gnus-summary-set-display-table ()
16409b0b
GM
3427 "Change the display table.
3428Odd characters have a tendency to mess
3429up nicely formatted displays - we make all possible glyphs
3430display only a single character."
eec82323
LMI
3431
3432 ;; We start from the standard display table, if any.
3433 (let ((table (or (copy-sequence standard-display-table)
3434 (make-display-table)))
3435 (i 32))
3436 ;; Nix out all the control chars...
3437 (while (>= (setq i (1- i)) 0)
2b968687 3438 (gnus-put-display-table i [??] table))
23f87bed 3439 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3440 ;; selective display).
2b968687
MB
3441 (gnus-put-display-table ?\n nil table)
3442 (gnus-put-display-table ?\r nil table)
6748645f 3443 ;; We keep TAB as well.
2b968687 3444 (gnus-put-display-table ?\t nil table)
719120ef 3445 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3446 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3447 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3448 160
3449 256)))
eec82323
LMI
3450 (while (>= (setq i (1- i)) 127)
3451 ;; Only modify if the entry is nil.
2b968687
MB
3452 (unless (gnus-get-display-table i table)
3453 (gnus-put-display-table i [??] table))))
eec82323
LMI
3454 (setq buffer-display-table table)))
3455
23f87bed
MB
3456(defun gnus-summary-set-article-display-arrow (pos)
3457 "Update the overlay arrow to point to line at position POS."
3458 (when (and gnus-summary-display-arrow
3459 (boundp 'overlay-arrow-position)
3460 (boundp 'overlay-arrow-string))
3461 (save-excursion
3462 (goto-char pos)
3463 (beginning-of-line)
3464 (unless overlay-arrow-position
3465 (setq overlay-arrow-position (make-marker)))
3466 (setq overlay-arrow-string "=>"
3467 overlay-arrow-position (set-marker overlay-arrow-position
3468 (point)
3469 (current-buffer))))))
3470
eec82323
LMI
3471(defun gnus-summary-setup-buffer (group)
3472 "Initialize summary buffer."
23f87bed
MB
3473 (let ((buffer (gnus-summary-buffer-name group))
3474 (dead-name (concat "*Dead Summary "
3475 (gnus-group-decoded-name group) "*")))
3476 ;; If a dead summary buffer exists, we kill it.
3477 (when (gnus-buffer-live-p dead-name)
3478 (gnus-kill-buffer dead-name))
eec82323
LMI
3479 (if (get-buffer buffer)
3480 (progn
3481 (set-buffer buffer)
3482 (setq gnus-summary-buffer (current-buffer))
3483 (not gnus-newsgroup-prepared))
3484 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3485 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3486 (gnus-summary-mode group)
3487 (when gnus-carpal
3488 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3489 (when (gnus-group-quit-config group)
3490 (set (make-local-variable 'gnus-single-article-buffer) nil))
3491 (make-local-variable 'gnus-article-buffer)
3492 (make-local-variable 'gnus-article-current)
3493 (make-local-variable 'gnus-original-article-buffer)
eec82323 3494 (setq gnus-newsgroup-name group)
23f87bed
MB
3495 ;; Set any local variables in the group parameters.
3496 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3497 t)))
3498
3499(defun gnus-set-global-variables ()
16409b0b
GM
3500 "Set the global equivalents of the buffer-local variables.
3501They are set to the latest values they had. These reflect the summary
3502buffer that was in action when the last article was fetched."
eec82323
LMI
3503 (when (eq major-mode 'gnus-summary-mode)
3504 (setq gnus-summary-buffer (current-buffer))
3505 (let ((name gnus-newsgroup-name)
3506 (marked gnus-newsgroup-marked)
23f87bed 3507 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3508 (unread gnus-newsgroup-unreads)
3509 (headers gnus-current-headers)
3510 (data gnus-newsgroup-data)
3511 (summary gnus-summary-buffer)
3512 (article-buffer gnus-article-buffer)
3513 (original gnus-original-article-buffer)
3514 (gac gnus-article-current)
3515 (reffed gnus-reffed-article-number)
16409b0b 3516 (score-file gnus-current-score-file)
23f87bed
MB
3517 (default-charset gnus-newsgroup-charset)
3518 vlist)
3519 (let ((locals gnus-newsgroup-variables))
3520 (while locals
3521 (if (consp (car locals))
3522 (push (eval (caar locals)) vlist)
3523 (push (eval (car locals)) vlist))
3524 (setq locals (cdr locals)))
3525 (setq vlist (nreverse vlist)))
01c52d31 3526 (with-current-buffer gnus-group-buffer
6748645f
LMI
3527 (setq gnus-newsgroup-name name
3528 gnus-newsgroup-marked marked
23f87bed 3529 gnus-newsgroup-spam-marked spam
6748645f
LMI
3530 gnus-newsgroup-unreads unread
3531 gnus-current-headers headers
3532 gnus-newsgroup-data data
3533 gnus-article-current gac
3534 gnus-summary-buffer summary
3535 gnus-article-buffer article-buffer
3536 gnus-original-article-buffer original
3537 gnus-reffed-article-number reffed
16409b0b
GM
3538 gnus-current-score-file score-file
3539 gnus-newsgroup-charset default-charset)
23f87bed
MB
3540 (let ((locals gnus-newsgroup-variables))
3541 (while locals
3542 (if (consp (car locals))
3543 (set (caar locals) (pop vlist))
3544 (set (car locals) (pop vlist)))
3545 (setq locals (cdr locals))))
eec82323
LMI
3546 ;; The article buffer also has local variables.
3547 (when (gnus-buffer-live-p gnus-article-buffer)
3548 (set-buffer gnus-article-buffer)
3549 (setq gnus-summary-buffer summary))))))
3550
3551(defun gnus-summary-article-unread-p (article)
3552 "Say whether ARTICLE is unread or not."
3553 (memq article gnus-newsgroup-unreads))
3554
3555(defun gnus-summary-first-article-p (&optional article)
3556 "Return whether ARTICLE is the first article in the buffer."
3557 (if (not (setq article (or article (gnus-summary-article-number))))
3558 nil
3559 (eq article (caar gnus-newsgroup-data))))
3560
3561(defun gnus-summary-last-article-p (&optional article)
3562 "Return whether ARTICLE is the last article in the buffer."
3563 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3564 ;; All non-existent numbers are the last article. :-)
3565 t
eec82323
LMI
3566 (not (cdr (gnus-data-find-list article)))))
3567
4921bbdd
CY
3568(defun gnus-make-thread-indent-array (&optional n)
3569 (when (or n
3570 (progn (setq n 200) nil)
3571 (null gnus-thread-indent-array)
3572 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3573 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3574 gnus-thread-indent-array-level gnus-thread-indent-level)
3575 (while (>= n 0)
3576 (aset gnus-thread-indent-array n
6a30c01d 3577 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3578 (setq n (1- n)))))
eec82323
LMI
3579
3580(defun gnus-update-summary-mark-positions ()
3581 "Compute where the summary marks are to go."
3582 (save-excursion
6748645f 3583 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3584 (set-buffer gnus-summary-buffer))
5153a47a
MB
3585 (let ((spec gnus-summary-line-format-spec)
3586 pos)
eec82323
LMI
3587 (save-excursion
3588 (gnus-set-work-buffer)
5153a47a
MB
3589 (let ((gnus-tmp-unread ?Z)
3590 (gnus-replied-mark ?Z)
3591 (gnus-score-below-mark ?Z)
3592 (gnus-score-over-mark ?Z)
3593 (gnus-undownloaded-mark ?Z)
3594 (gnus-summary-line-format-spec spec)
54506618 3595 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3596 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3597 case-fold-search ignores)
3598 ;; Here, all marks are bound to Z.
3599 (gnus-summary-insert-line header
3600 0 nil t gnus-tmp-unread t nil "" nil 1)
3601 (goto-char (point-min))
3602 ;; Memorize the positions of the same characters as dummy marks.
3603 (while (re-search-forward "[A-D]" nil t)
3604 (push (point) ignores))
54506618 3605 (erase-buffer)
5153a47a
MB
3606 ;; We use A-D as dummy marks in order to know column positions
3607 ;; where marks should be inserted.
3608 (setq gnus-tmp-unread ?A
3609 gnus-replied-mark ?B
3610 gnus-score-below-mark ?C
3611 gnus-score-over-mark ?C
3612 gnus-undownloaded-mark ?D)
3613 (gnus-summary-insert-line header
3614 0 nil t gnus-tmp-unread t nil "" nil 1)
3615 ;; Ignore characters which aren't dummy marks.
3616 (dolist (p ignores)
3617 (delete-region (goto-char (1- p)) p)
3618 (insert ?Z))
eec82323 3619 (goto-char (point-min))
7c3bb5a5 3620 (setq pos (list (cons 'unread
5153a47a 3621 (and (search-forward "A" nil t)
7c3bb5a5 3622 (- (point) (point-min) 1)))))
eec82323 3623 (goto-char (point-min))
5153a47a 3624 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3625 (- (point) (point-min) 1)))
eec82323
LMI
3626 pos)
3627 (goto-char (point-min))
5153a47a 3628 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3629 (- (point) (point-min) 1)))
6748645f
LMI
3630 pos)
3631 (goto-char (point-min))
5153a47a 3632 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3633 (- (point) (point-min) 1)))
eec82323
LMI
3634 pos)))
3635 (setq gnus-summary-mark-positions pos))))
3636
3637(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3638 "Insert a dummy root in the summary buffer."
3639 (beginning-of-line)
3640 (gnus-add-text-properties
3641 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3642 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3643
23f87bed
MB
3644(defun gnus-summary-extract-address-component (from)
3645 (or (car (funcall gnus-extract-address-components from))
3646 from))
3647
3648(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3649 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3650 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3651 ; Is it really necessary to do this next part for each summary line?
3652 ; Luckily, doesn't seem to slow things down much.
16409b0b 3653 (mail-parse-ignored-charsets
01c52d31
MB
3654 (with-current-buffer gnus-summary-buffer
3655 gnus-newsgroup-ignored-charsets)))
23f87bed 3656 (or
01c52d31
MB
3657 (and ignored-from-addresses
3658 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3659 (let ((extra-headers (mail-header-extra header))
3660 to
3661 newsgroups)
3662 (cond
3663 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3664 (concat gnus-summary-to-prefix
23f87bed
MB
3665 (inline
3666 (gnus-summary-extract-address-component
343d6628 3667 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3668 ((setq newsgroups
3669 (or
3670 (cdr (assq 'Newsgroups extra-headers))
3671 (and
3672 (memq 'Newsgroups gnus-extra-headers)
3673 (eq (car (gnus-find-method-for-group
3674 gnus-newsgroup-name)) 'nntp)
3675 (gnus-group-real-name gnus-newsgroup-name))))
3676 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3677 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3678
eec82323
LMI
3679(defun gnus-summary-insert-line (gnus-tmp-header
3680 gnus-tmp-level gnus-tmp-current
23f87bed 3681 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3682 gnus-tmp-expirable gnus-tmp-subject-or-nil
3683 &optional gnus-tmp-dummy gnus-tmp-score
3684 gnus-tmp-process)
4921bbdd
CY
3685 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3686 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3687 gnus-tmp-level)))
eec82323
LMI
3688 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3689 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3690 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3691 (gnus-tmp-score-char
3692 (if (or (null gnus-summary-default-score)
3693 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3694 gnus-summary-zcore-fuzz))
23f87bed 3695 ? ;Whitespace
eec82323
LMI
3696 (if (< gnus-tmp-score gnus-summary-default-score)
3697 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3698 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3699 (gnus-tmp-replied
3700 (cond (gnus-tmp-process gnus-process-mark)
3701 ((memq gnus-tmp-current gnus-newsgroup-cached)
3702 gnus-cached-mark)
3703 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3704 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3705 gnus-forwarded-mark)
eec82323
LMI
3706 ((memq gnus-tmp-current gnus-newsgroup-saved)
3707 gnus-saved-mark)
23f87bed
MB
3708 ((memq gnus-tmp-number gnus-newsgroup-recent)
3709 gnus-recent-mark)
3710 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3711 gnus-unseen-mark)
3712 (t gnus-no-mark)))
3713 (gnus-tmp-downloaded
3714 (cond (undownloaded
3715 gnus-undownloaded-mark)
3716 (gnus-newsgroup-agentized
3717 gnus-downloaded-mark)
3718 (t
3719 gnus-no-mark)))
eec82323
LMI
3720 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3721 (gnus-tmp-name
3722 (cond
3723 ((string-match "<[^>]+> *$" gnus-tmp-from)
3724 (let ((beg (match-beginning 0)))
23f87bed
MB
3725 (or (and (string-match "^\".+\"" gnus-tmp-from)
3726 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3727 (substring gnus-tmp-from 0 beg))))
3728 ((string-match "(.+)" gnus-tmp-from)
3729 (substring gnus-tmp-from
3730 (1+ (match-beginning 0)) (1- (match-end 0))))
3731 (t gnus-tmp-from)))
3732 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3733 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3734 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3735 (inhibit-read-only t))
eec82323
LMI
3736 (when (string= gnus-tmp-name "")
3737 (setq gnus-tmp-name gnus-tmp-from))
3738 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3739 (setq gnus-tmp-lines -1))
3740 (if (= gnus-tmp-lines -1)
3741 (setq gnus-tmp-lines "?")
3742 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3743 (condition-case ()
3744 (gnus-put-text-property
3745 (point)
3746 (progn (eval gnus-summary-line-format-spec) (point))
3747 'gnus-number gnus-tmp-number)
3748 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3749 (when (gnus-visual-p 'summary-highlight 'highlight)
3750 (forward-line -1)
6748645f 3751 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3752 (forward-line 1))))
3753
3754(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3755 "Update summary line after change."
eec82323
LMI
3756 (when (and gnus-summary-default-score
3757 (not gnus-summary-inhibit-highlight))
3758 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3759 (article (gnus-summary-article-number))
3760 (score (gnus-summary-article-score article)))
3761 (unless dont-update
3762 (if (and gnus-summary-mark-below
3763 (< (gnus-summary-article-score)
3764 gnus-summary-mark-below))
3765 ;; This article has a low score, so we mark it as read.
3766 (when (memq article gnus-newsgroup-unreads)
3767 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3768 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3769 ;; This article was previously marked as read on account
3770 ;; of a low score, but now it has risen, so we mark it as
3771 ;; unread.
3772 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3773 (gnus-summary-update-mark
3774 (if (or (null gnus-summary-default-score)
3775 (<= (abs (- score gnus-summary-default-score))
3776 gnus-summary-zcore-fuzz))
23f87bed 3777 ? ;Whitespace
eec82323
LMI
3778 (if (< score gnus-summary-default-score)
3779 gnus-score-below-mark gnus-score-over-mark))
3780 'score))
3781 ;; Do visual highlighting.
3782 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3783 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3784
3785(defvar gnus-tmp-new-adopts nil)
3786
3787(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3788 "Return the number of articles in THREAD.
3789This may be 0 in some cases -- if none of the articles in
3790the thread are to be displayed."
3791 (let* ((number
23f87bed 3792 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3793 (cond
3794 ((not (listp thread))
3795 1)
3796 ((and (consp thread) (cdr thread))
3797 (apply
3798 '+ 1 (mapcar
3799 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3800 ((null thread)
3801 1)
3802 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3803 1)
3804 (t 0))))
3805 (when (and level (zerop level) gnus-tmp-new-adopts)
3806 (incf number
3807 (apply '+ (mapcar
3808 'gnus-summary-number-of-articles-in-thread
3809 gnus-tmp-new-adopts))))
3810 (if char
3811 (if (> number 1) gnus-not-empty-thread-mark
3812 gnus-empty-thread-mark)
3813 number)))
3814
23f87bed
MB
3815(defsubst gnus-summary-line-message-size (head)
3816 "Return pretty-printed version of message size.
3817This function is intended to be used in
3818`gnus-summary-line-format-alist'."
3819 (let ((c (or (mail-header-chars head) -1)))
3820 (cond ((< c 0) "n/a") ; chars not available
3821 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3822 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3823 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3824 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3825
3826
eec82323
LMI
3827(defun gnus-summary-set-local-parameters (group)
3828 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3829 (let ((vars '(quit-config))) ; Ignore quit-config.
3830 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3831 (and (consp elem) ; Has to be a cons.
3832 (consp (cdr elem)) ; The cdr has to be a list.
3833 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3834 (not (memq (car elem) vars))
eec82323 3835 (ignore-errors ; So we set it.
23f87bed 3836 (push (car elem) vars)
eec82323
LMI
3837 (make-local-variable (car elem))
3838 (set (car elem) (eval (nth 1 elem))))))))
3839
3840(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3841 kill-buffer no-display backward
3842 select-articles)
eec82323
LMI
3843 "Start reading news in newsgroup GROUP.
3844If SHOW-ALL is non-nil, already read articles are also listed.
3845If NO-ARTICLE is non-nil, no article is selected initially.
3846If NO-DISPLAY, don't generate a summary buffer."
3847 (let (result)
3848 (while (and group
3849 (null (setq result
3850 (let ((gnus-auto-select-next nil))
6748645f
LMI
3851 (or (gnus-summary-read-group-1
3852 group show-all no-article
3853 kill-buffer no-display
3854 select-articles)
3855 (setq show-all nil
16409b0b 3856 select-articles nil)))))
eec82323
LMI
3857 (eq gnus-auto-select-next 'quietly))
3858 (set-buffer gnus-group-buffer)
6748645f
LMI
3859 ;; The entry function called above goes to the next
3860 ;; group automatically, so we go two groups back
3861 ;; if we are searching for the previous group.
3862 (when backward
3863 (gnus-group-prev-unread-group 2))
eec82323
LMI
3864 (if (not (equal group (gnus-group-group-name)))
3865 (setq group (gnus-group-group-name))
3866 (setq group nil)))
3867 result))
3868
3869(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3870 kill-buffer no-display
3871 &optional select-articles)
eec82323 3872 ;; Killed foreign groups can't be entered.
23f87bed
MB
3873 ;; (when (and (not (gnus-group-native-p group))
3874 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3875 ;; (error "Dead non-native groups can't be entered"))
3876 (gnus-message 5 "Retrieving newsgroup: %s..."
3877 (gnus-group-decoded-name group))
eec82323
LMI
3878 (let* ((new-group (gnus-summary-setup-buffer group))
3879 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3880 (did-select (and new-group (gnus-select-newsgroup
3881 group show-all select-articles))))
eec82323
LMI
3882 (cond
3883 ;; This summary buffer exists already, so we just select it.
3884 ((not new-group)
3885 (gnus-set-global-variables)
3886 (when kill-buffer
3887 (gnus-kill-or-deaden-summary kill-buffer))
3888 (gnus-configure-windows 'summary 'force)
3889 (gnus-set-mode-line 'summary)
3890 (gnus-summary-position-point)
3891 (message "")
3892 t)
3893 ;; We couldn't select this group.
3894 ((null did-select)
3895 (when (and (eq major-mode 'gnus-summary-mode)
3896 (not (equal (current-buffer) kill-buffer)))
3897 (kill-buffer (current-buffer))
3898 (if (not quit-config)
3899 (progn
6748645f
LMI
3900 ;; Update the info -- marks might need to be removed,
3901 ;; for instance.
3902 (gnus-summary-update-info)
eec82323
LMI
3903 (set-buffer gnus-group-buffer)
3904 (gnus-group-jump-to-group group)
3905 (gnus-group-next-unread-group 1))
3906 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3907 (let ((grpinfo (gnus-get-info group)))
3908 (if (null (gnus-info-read grpinfo))
3909 (gnus-message 3 "Group %s contains no messages"
3910 (gnus-group-decoded-name group))
3911 (gnus-message 3 "Can't select group")))
eec82323
LMI
3912 nil)
3913 ;; The user did a `C-g' while prompting for number of articles,
3914 ;; so we exit this group.
3915 ((eq did-select 'quit)
3916 (and (eq major-mode 'gnus-summary-mode)
3917 (not (equal (current-buffer) kill-buffer))
3918 (kill-buffer (current-buffer)))
3919 (when kill-buffer
3920 (gnus-kill-or-deaden-summary kill-buffer))
3921 (if (not quit-config)
3922 (progn
3923 (set-buffer gnus-group-buffer)
3924 (gnus-group-jump-to-group group)
3925 (gnus-group-next-unread-group 1)
3926 (gnus-configure-windows 'group 'force))
3927 (gnus-handle-ephemeral-exit quit-config))
3928 ;; Finally signal the quit.
3929 (signal 'quit nil))
3930 ;; The group was successfully selected.
3931 (t
3932 (gnus-set-global-variables)
3933 ;; Save the active value in effect when the group was entered.
3934 (setq gnus-newsgroup-active
3935 (gnus-copy-sequence
3936 (gnus-active gnus-newsgroup-name)))
3937 ;; You can change the summary buffer in some way with this hook.
6748645f 3938 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3939 (when (memq 'summary (gnus-update-format-specifications
3940 nil 'summary 'summary-mode 'summary-dummy))
3941 ;; The format specification for the summary line was updated,
3942 ;; so we need to update the mark positions as well.
3943 (gnus-update-summary-mark-positions))
eec82323
LMI
3944 ;; Do score processing.
3945 (when gnus-use-scoring
3946 (gnus-possibly-score-headers))
3947 ;; Check whether to fill in the gaps in the threads.
3948 (when gnus-build-sparse-threads
3949 (gnus-build-sparse-threads))
3950 ;; Find the initial limit.
26c9afc3
MB
3951 (if show-all
3952 (let ((gnus-newsgroup-dormant nil))
eec82323 3953 (gnus-summary-initial-limit show-all))
26c9afc3 3954 (gnus-summary-initial-limit show-all))
eec82323
LMI
3955 ;; Generate the summary buffer.
3956 (unless no-display
3957 (gnus-summary-prepare))
3958 (when gnus-use-trees
3959 (gnus-tree-open group)
3960 (setq gnus-summary-highlight-line-function
3961 'gnus-tree-highlight-article))
3962 ;; If the summary buffer is empty, but there are some low-scored
3963 ;; articles or some excluded dormants, we include these in the
3964 ;; buffer.
3965 (when (and (zerop (buffer-size))
3966 (not no-display))
3967 (cond (gnus-newsgroup-dormant
3968 (gnus-summary-limit-include-dormant))
3969 ((and gnus-newsgroup-scored show-all)
3970 (gnus-summary-limit-include-expunged t))))
3971 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3972 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3973 (if (and (zerop (buffer-size))
3974 (not no-display))
3975 (progn
3976 ;; This newsgroup is empty.
3977 (gnus-summary-catchup-and-exit nil t)
3978 (gnus-message 6 "No unread news")
3979 (when kill-buffer
3980 (gnus-kill-or-deaden-summary kill-buffer))
3981 ;; Return nil from this function.
3982 nil)
3983 ;; Hide conversation thread subtrees. We cannot do this in
3984 ;; gnus-summary-prepare-hook since kill processing may not
3985 ;; work with hidden articles.
23f87bed 3986 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3987 (when kill-buffer
3988 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3989 (gnus-summary-auto-select-subject)
eec82323
LMI
3990 ;; Show first unread article if requested.
3991 (if (and (not no-article)
3992 (not no-display)
3993 gnus-newsgroup-unreads
3994 gnus-auto-select-first)
16409b0b
GM
3995 (progn
3996 (gnus-configure-windows 'summary)
23f87bed
MB
3997 (let ((art (gnus-summary-article-number)))
3998 (unless (and (not gnus-plugged)
3999 (or (memq art gnus-newsgroup-undownloaded)
4000 (memq art gnus-newsgroup-downloadable)))
4001 (gnus-summary-goto-article art))))
4002 ;; Don't select any articles.
eec82323 4003 (gnus-summary-position-point)
6748645f
LMI
4004 (gnus-configure-windows 'summary 'force)
4005 (gnus-set-mode-line 'summary))
23f87bed
MB
4006 (when (and gnus-auto-center-group
4007 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4008 ;; Gotta use windows, because recenter does weird stuff if
4009 ;; the current buffer ain't the displayed window.
4010 (let ((owin (selected-window)))
4011 (select-window (get-buffer-window gnus-group-buffer t))
4012 (when (gnus-group-goto-group group)
4013 (recenter))
4014 (select-window owin)))
4015 ;; Mark this buffer as "prepared".
4016 (setq gnus-newsgroup-prepared t)
6748645f 4017 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4018 (unless (gnus-ephemeral-group-p group)
4019 (gnus-group-update-group group))
eec82323
LMI
4020 t)))))
4021
23f87bed
MB
4022(defun gnus-summary-auto-select-subject ()
4023 "Select the subject line on initial group entry."
4024 (goto-char (point-min))
4025 (cond
4026 ((eq gnus-auto-select-subject 'best)
4027 (gnus-summary-best-unread-subject))
4028 ((eq gnus-auto-select-subject 'unread)
4029 (gnus-summary-first-unread-subject))
4030 ((eq gnus-auto-select-subject 'unseen)
4031 (gnus-summary-first-unseen-subject))
4032 ((eq gnus-auto-select-subject 'unseen-or-unread)
4033 (gnus-summary-first-unseen-or-unread-subject))
4034 ((eq gnus-auto-select-subject 'first)
4035 ;; Do nothing.
4036 )
4037 ((functionp gnus-auto-select-subject)
4038 (funcall gnus-auto-select-subject))))
4039
eec82323
LMI
4040(defun gnus-summary-prepare ()
4041 "Generate the summary buffer."
4042 (interactive)
c7a91ce1 4043 (let ((inhibit-read-only t))
eec82323
LMI
4044 (erase-buffer)
4045 (setq gnus-newsgroup-data nil
4046 gnus-newsgroup-data-reverse nil)
6748645f 4047 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4048 ;; Generate the buffer, either with threads or without.
4049 (when gnus-newsgroup-headers
4050 (gnus-summary-prepare-threads
4051 (if gnus-show-threads
4052 (gnus-sort-gathered-threads
4053 (funcall gnus-summary-thread-gathering-function
4054 (gnus-sort-threads
4055 (gnus-cut-threads (gnus-make-threads)))))
4056 ;; Unthreaded display.
4057 (gnus-sort-articles gnus-newsgroup-headers))))
4058 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4059 ;; Call hooks for modifying summary buffer.
4060 (goto-char (point-min))
6748645f 4061 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4062
4063(defsubst gnus-general-simplify-subject (subject)
23f87bed 4064 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4065 (setq subject
4066 (cond
4067 ;; Truncate the subject.
6748645f
LMI
4068 (gnus-simplify-subject-functions
4069 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4070 ((numberp gnus-summary-gather-subject-limit)
4071 (setq subject (gnus-simplify-subject-re subject))
4072 (if (> (length subject) gnus-summary-gather-subject-limit)
4073 (substring subject 0 gnus-summary-gather-subject-limit)
4074 subject))
4075 ;; Fuzzily simplify it.
4076 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4077 (gnus-simplify-subject-fuzzy subject))
4078 ;; Just remove the leading "Re:".
4079 (t
4080 (gnus-simplify-subject-re subject))))
4081
4082 (if (and gnus-summary-gather-exclude-subject
4083 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4084 nil ; This article shouldn't be gathered
eec82323
LMI
4085 subject))
4086
4087(defun gnus-summary-simplify-subject-query ()
4088 "Query where the respool algorithm would put this article."
4089 (interactive)
eec82323 4090 (gnus-summary-select-article)
274f1353 4091 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4092
4093(defun gnus-gather-threads-by-subject (threads)
4094 "Gather threads by looking at Subject headers."
4095 (if (not gnus-summary-make-false-root)
4096 threads
4097 (let ((hashtb (gnus-make-hashtable 1024))
4098 (prev threads)
4099 (result threads)
4100 subject hthread whole-subject)
4101 (while threads
4102 (setq subject (gnus-general-simplify-subject
4103 (setq whole-subject (mail-header-subject
4104 (caar threads)))))
4105 (when subject
4106 (if (setq hthread (gnus-gethash subject hashtb))
4107 (progn
4108 ;; We enter a dummy root into the thread, if we
4109 ;; haven't done that already.
4110 (unless (stringp (caar hthread))
4111 (setcar hthread (list whole-subject (car hthread))))
4112 ;; We add this new gathered thread to this gathered
4113 ;; thread.
4114 (setcdr (car hthread)
4115 (nconc (cdar hthread) (list (car threads))))
4116 ;; Remove it from the list of threads.
4117 (setcdr prev (cdr threads))
4118 (setq threads prev))
4119 ;; Enter this thread into the hash table.
23f87bed
MB
4120 (gnus-sethash subject
4121 (if gnus-summary-make-false-root-always
4122 (progn
4123 ;; If you want a dummy root above all
4124 ;; threads...
4125 (setcar threads (list whole-subject
4126 (car threads)))
4127 threads)
4128 threads)
4129 hashtb)))
eec82323
LMI
4130 (setq prev threads)
4131 (setq threads (cdr threads)))
4132 result)))
4133
4134(defun gnus-gather-threads-by-references (threads)
4135 "Gather threads by looking at References headers."
4136 (let ((idhashtb (gnus-make-hashtable 1024))
4137 (thhashtb (gnus-make-hashtable 1024))
4138 (prev threads)
4139 (result threads)
4140 ids references id gthread gid entered ref)
4141 (while threads
4142 (when (setq references (mail-header-references (caar threads)))
4143 (setq id (mail-header-id (caar threads))
23f87bed 4144 ids (inline (gnus-split-references references))
eec82323
LMI
4145 entered nil)
4146 (while (setq ref (pop ids))
4147 (setq ids (delete ref ids))
4148 (if (not (setq gid (gnus-gethash ref idhashtb)))
4149 (progn
4150 (gnus-sethash ref id idhashtb)
4151 (gnus-sethash id threads thhashtb))
4152 (setq gthread (gnus-gethash gid thhashtb))
4153 (unless entered
4154 ;; We enter a dummy root into the thread, if we
4155 ;; haven't done that already.
4156 (unless (stringp (caar gthread))
4157 (setcar gthread (list (mail-header-subject (caar gthread))
4158 (car gthread))))
4159 ;; We add this new gathered thread to this gathered
4160 ;; thread.
4161 (setcdr (car gthread)
4162 (nconc (cdar gthread) (list (car threads)))))
4163 ;; Add it into the thread hash table.
4164 (gnus-sethash id gthread thhashtb)
4165 (setq entered t)
4166 ;; Remove it from the list of threads.
4167 (setcdr prev (cdr threads))
4168 (setq threads prev))))
4169 (setq prev threads)
4170 (setq threads (cdr threads)))
4171 result))
4172
4173(defun gnus-sort-gathered-threads (threads)
16409b0b 4174 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4175 (let ((result threads))
4176 (while threads
4177 (when (stringp (caar threads))
4178 (setcdr (car threads)
16409b0b 4179 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4180 (setq threads (cdr threads)))
4181 result))
4182
4183(defun gnus-thread-loop-p (root thread)
4184 "Say whether ROOT is in THREAD."
4185 (let ((stack (list thread))
4186 (infloop 0)
4187 th)
4188 (while (setq thread (pop stack))
4189 (setq th (cdr thread))
4190 (while (and th
4191 (not (eq (caar th) root)))
4192 (pop th))
4193 (if th
4194 ;; We have found a loop.
4195 (let (ref-dep)
4196 (setcdr thread (delq (car th) (cdr thread)))
4197 (if (boundp (setq ref-dep (intern "none"
4198 gnus-newsgroup-dependencies)))
4199 (setcdr (symbol-value ref-dep)
4200 (nconc (cdr (symbol-value ref-dep))
4201 (list (car th))))
4202 (set ref-dep (list nil (car th))))
4203 (setq infloop 1
4204 stack nil))
4205 ;; Push all the subthreads onto the stack.
4206 (push (cdr thread) stack)))
4207 infloop))
4208
4209(defun gnus-make-threads ()
01ccbb85 4210 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4211 (let (threads)
4212 (while (catch 'infloop
4213 (mapatoms
4214 (lambda (refs)
4215 ;; Deal with self-referencing References loops.
4216 (when (and (car (symbol-value refs))
4217 (not (zerop
4218 (apply
4219 '+
4220 (mapcar
4221 (lambda (thread)
4222 (gnus-thread-loop-p
4223 (car (symbol-value refs)) thread))
4224 (cdr (symbol-value refs)))))))
4225 (setq threads nil)
4226 (throw 'infloop t))
4227 (unless (car (symbol-value refs))
23f87bed
MB
4228 ;; These threads do not refer back to any other
4229 ;; articles, so they're roots.
eec82323
LMI
4230 (setq threads (append (cdr (symbol-value refs)) threads))))
4231 gnus-newsgroup-dependencies)))
4232 threads))
4233
6748645f 4234;; Build the thread tree.
16409b0b 4235(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4236 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4237
4238If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4239if it was already present.
4240
4241If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4242will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4243Message-IDs will be renamed to a unique Message-ID before being
4244entered.
6748645f
LMI
4245
4246Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4247 (let* ((id (mail-header-id header))
4248 (id-dep (and id (intern id dependencies)))
23f87bed 4249 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4250 ;; Enter this `header' in the `dependencies' table.
4251 (cond
4252 ((not id-dep)
4253 (setq header nil))
4254 ;; The first two cases do the normal part: enter a new `header'
4255 ;; in the `dependencies' table.
4256 ((not (boundp id-dep))
4257 (set id-dep (list header)))
4258 ((null (car (symbol-value id-dep)))
4259 (setcar (symbol-value id-dep) header))
4260
4261 ;; From here the `header' was already present in the
4262 ;; `dependencies' table.
4263 (force-new
4264 ;; Overrides an existing entry;
4265 ;; just set the header part of the entry.
23f87bed
MB
4266 (setcar (symbol-value id-dep) header)
4267 (setq replaced t))
6748645f
LMI
4268
4269 ;; Renames the existing `header' to a unique Message-ID.
4270 ((not gnus-summary-ignore-duplicates)
4271 ;; An article with this Message-ID has already been seen.
4272 ;; We rename the Message-ID.
4273 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4274 (list header))
4275 (mail-header-set-id header id))
4276
4277 ;; The last case ignores an existing entry, except it adds any
4278 ;; additional Xrefs (in case the two articles came from different
4279 ;; servers.
4280 ;; Also sets `header' to `nil' meaning that the `dependencies'
4281 ;; table was *not* modified.
4282 (t
4283 (mail-header-set-xref
4284 (car (symbol-value id-dep))
4285 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4286 "")
4287 (or (mail-header-xref header) "")))
4288 (setq header nil)))
4289
23f87bed
MB
4290 (when (and header (not replaced))
4291 ;; First check that we are not creating a References loop.
4292 (setq parent-id (gnus-parent-id (mail-header-references header)))
4293 (setq ref parent-id)
6748645f
LMI
4294 (while (and ref
4295 (setq ref-dep (intern-soft ref dependencies))
4296 (boundp ref-dep)
4297 (setq ref-header (car (symbol-value ref-dep))))
4298 (if (string= id ref)
4299 ;; Yuk! This is a reference loop. Make the article be a
4300 ;; root article.
4301 (progn
4302 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4303 (setq ref nil)
4304 (setq parent-id nil))
6748645f 4305 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4306 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4307 (if (boundp ref-dep)
4308 (setcdr (symbol-value ref-dep)
4309 (nconc (cdr (symbol-value ref-dep))
4310 (list (symbol-value id-dep))))
4311 (set ref-dep (list nil (symbol-value id-dep)))))
4312 header))
4313
23f87bed
MB
4314(defun gnus-extract-message-id-from-in-reply-to (string)
4315 (if (string-match "<[^>]+>" string)
4316 (substring string (match-beginning 0) (match-end 0))
4317 nil))
4318
eec82323
LMI
4319(defun gnus-build-sparse-threads ()
4320 (let ((headers gnus-newsgroup-headers)
16409b0b 4321 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4322 (gnus-summary-ignore-duplicates t)
eec82323 4323 header references generation relations
6748645f 4324 subject child end new-child date)
eec82323
LMI
4325 ;; First we create an alist of generations/relations, where
4326 ;; generations is how much we trust the relation, and the relation
4327 ;; is parent/child.
4328 (gnus-message 7 "Making sparse threads...")
4329 (save-excursion
4330 (nnheader-set-temp-buffer " *gnus sparse threads*")
4331 (while (setq header (pop headers))
4332 (when (and (setq references (mail-header-references header))
4333 (not (string= references "")))
4334 (insert references)
4335 (setq child (mail-header-id header)
6748645f
LMI
4336 subject (mail-header-subject header)
4337 date (mail-header-date header)
4338 generation 0)
eec82323
LMI
4339 (while (search-backward ">" nil t)
4340 (setq end (1+ (point)))
4341 (when (search-backward "<" nil t)
6748645f 4342 (setq new-child (buffer-substring (point) end))
eec82323 4343 (push (list (incf generation)
6748645f
LMI
4344 child (setq child new-child)
4345 subject date)
eec82323 4346 relations)))
6748645f
LMI
4347 (when child
4348 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4349 (erase-buffer)))
4350 (kill-buffer (current-buffer)))
4351 ;; Sort over trustworthiness.
01c52d31
MB
4352 (dolist (relation (sort relations 'car-less-than-car))
4353 (when (gnus-dependencies-add-header
4354 (make-full-mail-header
4355 gnus-reffed-article-number
4356 (nth 3 relation) "" (or (nth 4 relation) "")
4357 (nth 1 relation)
4358 (or (nth 2 relation) "") 0 0 "")
4359 gnus-newsgroup-dependencies nil)
4360 (push gnus-reffed-article-number gnus-newsgroup-limit)
4361 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4362 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4363 gnus-newsgroup-reads)
4364 (decf gnus-reffed-article-number)))
eec82323
LMI
4365 (gnus-message 7 "Making sparse threads...done")))
4366
4367(defun gnus-build-old-threads ()
4368 ;; Look at all the articles that refer back to old articles, and
4369 ;; fetch the headers for the articles that aren't there. This will
4370 ;; build complete threads - if the roots haven't been expired by the
4371 ;; server, that is.
16409b0b
GM
4372 (let ((mail-parse-charset gnus-newsgroup-charset)
4373 id heads)
eec82323
LMI
4374 (mapatoms
4375 (lambda (refs)
4376 (when (not (car (symbol-value refs)))
4377 (setq heads (cdr (symbol-value refs)))
4378 (while heads
4379 (if (memq (mail-header-number (caar heads))
4380 gnus-newsgroup-dormant)
4381 (setq heads (cdr heads))
4382 (setq id (symbol-name refs))
4383 (while (and (setq id (gnus-build-get-header id))
6748645f 4384 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4385 (setq heads nil)))))
4386 gnus-newsgroup-dependencies)))
4387
23f87bed
MB
4388(defsubst gnus-remove-odd-characters (string)
4389 "Translate STRING into something that doesn't contain weird characters."
4390 (mm-subst-char-in-string
4391 ?\r ?\-
01c52d31 4392 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4393
6748645f
LMI
4394;; This function has to be called with point after the article number
4395;; on the beginning of the line.
4396(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4397 (let ((eol (point-at-eol))
6748645f 4398 (buffer (current-buffer))
23f87bed 4399 header references in-reply-to)
6748645f
LMI
4400
4401 ;; overview: [num subject from date id refs chars lines misc]
4402 (unwind-protect
23f87bed 4403 (let (x)
6748645f
LMI
4404 (narrow-to-region (point) eol)
4405 (unless (eobp)
4406 (forward-char))
4407
4408 (setq header
4409 (make-full-mail-header
4410 number ; number
23f87bed
MB
4411 (condition-case () ; subject
4412 (gnus-remove-odd-characters
4413 (funcall gnus-decode-encoded-word-function
4414 (setq x (nnheader-nov-field))))
4415 (error x))
4416 (condition-case () ; from
4417 (gnus-remove-odd-characters
343d6628 4418 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4419 (setq x (nnheader-nov-field))))
4420 (error x))
16409b0b 4421 (nnheader-nov-field) ; date
01c52d31 4422 (nnheader-nov-read-message-id number) ; id
23f87bed 4423 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4424 (nnheader-nov-read-integer) ; chars
4425 (nnheader-nov-read-integer) ; lines
4426 (unless (eobp)
8b93df01
DL
4427 (if (looking-at "Xref: ")
4428 (goto-char (match-end 0)))
4429 (nnheader-nov-field)) ; Xref
16409b0b 4430 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4431
4432 (widen))
4433
23f87bed
MB
4434 (when (and (string= references "")
4435 (setq in-reply-to (mail-header-extra header))
4436 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4437 (mail-header-set-references
4438 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4439
6748645f
LMI
4440 (when gnus-alter-header-function
4441 (funcall gnus-alter-header-function header))
4442 (gnus-dependencies-add-header header dependencies force-new)))
4443
eec82323 4444(defun gnus-build-get-header (id)
16409b0b
GM
4445 "Look through the buffer of NOV lines and find the header to ID.
4446Enter this line into the dependencies hash table, and return
4447the id of the parent article (if any)."
eec82323
LMI
4448 (let ((deps gnus-newsgroup-dependencies)
4449 found header)
4450 (prog1
c7a91ce1 4451 (with-current-buffer nntp-server-buffer
eec82323
LMI
4452 (let ((case-fold-search nil))
4453 (goto-char (point-min))
4454 (while (and (not found)
4455 (search-forward id nil t))
4456 (beginning-of-line)
4457 (setq found (looking-at
4458 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4459 (regexp-quote id))))
4460 (or found (beginning-of-line 2)))
4461 (when found
4462 (beginning-of-line)
4463 (and
4464 (setq header (gnus-nov-parse-line
4465 (read (current-buffer)) deps))
4466 (gnus-parent-id (mail-header-references header))))))
4467 (when header
4468 (let ((number (mail-header-number header)))
4469 (push number gnus-newsgroup-limit)
4470 (push header gnus-newsgroup-headers)
4471 (if (memq number gnus-newsgroup-unselected)
4472 (progn
23f87bed
MB
4473 (setq gnus-newsgroup-unreads
4474 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4475 number))
eec82323
LMI
4476 (setq gnus-newsgroup-unselected
4477 (delq number gnus-newsgroup-unselected)))
4478 (push number gnus-newsgroup-ancient)))))))
4479
6748645f
LMI
4480(defun gnus-build-all-threads ()
4481 "Read all the headers."
4482 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4483 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4484 (dependencies gnus-newsgroup-dependencies)
4485 header article)
c7a91ce1 4486 (with-current-buffer nntp-server-buffer
6748645f
LMI
4487 (let ((case-fold-search nil))
4488 (goto-char (point-min))
4489 (while (not (eobp))
4490 (ignore-errors
4491 (setq article (read (current-buffer))
16409b0b 4492 header (gnus-nov-parse-line article dependencies)))
6748645f 4493 (when header
01c52d31 4494 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4495 (push header gnus-newsgroup-headers)
4496 (if (memq (setq article (mail-header-number header))
4497 gnus-newsgroup-unselected)
4498 (progn
23f87bed
MB
4499 (setq gnus-newsgroup-unreads
4500 (gnus-add-to-sorted-list
4501 gnus-newsgroup-unreads article))
6748645f
LMI
4502 (setq gnus-newsgroup-unselected
4503 (delq article gnus-newsgroup-unselected)))
4504 (push article gnus-newsgroup-ancient)))
4505 (forward-line 1)))))))
4506
eec82323 4507(defun gnus-summary-update-article-line (article header)
23f87bed 4508 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4509 (let* ((id (mail-header-id header))
4510 (thread (gnus-id-to-thread id)))
4511 (unless thread
4512 (error "Article in no thread"))
4513 ;; Update the thread.
4514 (setcar thread header)
4515 (gnus-summary-goto-subject article)
4516 (let* ((datal (gnus-data-find-list article))
4517 (data (car datal))
c7a91ce1 4518 (inhibit-read-only t)
eec82323
LMI
4519 (level (gnus-summary-thread-level)))
4520 (gnus-delete-line)
23f87bed
MB
4521 (let ((inserted (- (point)
4522 (progn
4523 (gnus-summary-insert-line
4524 header level nil
4525 (memq article gnus-newsgroup-undownloaded)
4526 (gnus-article-mark article)
4527 (memq article gnus-newsgroup-replied)
4528 (memq article gnus-newsgroup-expirable)
4529 ;; Only insert the Subject string when it's different
4530 ;; from the previous Subject string.
4531 (if (and
4532 gnus-show-threads
4533 (gnus-subject-equal
4534 (condition-case ()
4535 (mail-header-subject
4536 (gnus-data-header
4537 (cadr
4538 (gnus-data-find-list
4539 article
4540 (gnus-data-list t)))))
4541 ;; Error on the side of excessive subjects.
4542 (error ""))
4543 (mail-header-subject header)))
4544 ""
4545 (mail-header-subject header))
4546 nil (cdr (assq article gnus-newsgroup-scored))
4547 (memq article gnus-newsgroup-processable))
4548 (point)))))
4549 (when (cdr datal)
4550 (gnus-data-update-list
4551 (cdr datal)
4552 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4553
4554(defun gnus-summary-update-article (article &optional iheader)
4555 "Update ARTICLE in the summary buffer."
4556 (set-buffer gnus-summary-buffer)
6748645f 4557 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4558 (id (mail-header-id header))
4559 (data (gnus-data-find article))
4560 (thread (gnus-id-to-thread id))
4561 (references (mail-header-references header))
4562 (parent
4563 (gnus-id-to-thread
4564 (or (gnus-parent-id
4565 (when (and references
4566 (not (equal "" references)))
4567 references))
4568 "none")))
c7a91ce1 4569 (inhibit-read-only t)
6748645f 4570 (old (car thread)))
eec82323 4571 (when thread
eec82323 4572 (unless iheader
6748645f
LMI
4573 (setcar thread nil)
4574 (when parent
4575 (delq thread parent)))
4576 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4577 ;; Set the (possibly) new article number in the data structure.
4578 (gnus-data-set-number data (gnus-id-to-article id))
4579 (setcar thread old)
4580 nil))))
4581
6748645f
LMI
4582(defun gnus-rebuild-thread (id &optional line)
4583 "Rebuild the thread containing ID.
4584If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4585 (let ((inhibit-read-only t)
eec82323
LMI
4586 old-pos current thread data)
4587 (if (not gnus-show-threads)
4588 (setq thread (list (car (gnus-id-to-thread id))))
4589 ;; Get the thread this article is part of.
4590 (setq thread (gnus-remove-thread id)))
01c52d31 4591 (setq old-pos (point-at-bol))
eec82323 4592 (setq current (save-excursion
94384150 4593 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4594 (gnus-summary-article-number))))
4595 ;; If this is a gathered thread, we have to go some re-gathering.
4596 (when (stringp (car thread))
4597 (let ((subject (car thread))
4598 roots thr)
4599 (setq thread (cdr thread))
4600 (while thread
4601 (unless (memq (setq thr (gnus-id-to-thread
4602 (gnus-root-id
4603 (mail-header-id (caar thread)))))
4604 roots)
4605 (push thr roots))
4606 (setq thread (cdr thread)))
4607 ;; We now have all (unique) roots.
4608 (if (= (length roots) 1)
4609 ;; All the loose roots are now one solid root.
4610 (setq thread (car roots))
4611 (setq thread (cons subject (gnus-sort-threads roots))))))
4612 (let (threads)
4613 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4614 (when line
4615 (goto-char (point-min))
4616 (forward-line (1- line)))
eec82323
LMI
4617 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4618 (if gnus-show-threads
4619 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4620 (gnus-summary-prepare-unthreaded thread))
4621 (setq data (nreverse gnus-newsgroup-data))
4622 (setq threads gnus-newsgroup-threads))
4623 ;; We splice the new data into the data structure.
6748645f
LMI
4624 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4625 ;;!!! then we want to insert at the beginning of the buffer.
4626 ;;!!! That happens to be true with Gnus now, but that may
4627 ;;!!! change in the future. Perhaps.
4628 (gnus-data-enter-list
4629 (if line nil current) data (- (point) old-pos))
4630 (setq gnus-newsgroup-threads
4631 (nconc threads gnus-newsgroup-threads))
4632 (gnus-data-compute-positions))))
eec82323
LMI
4633
4634(defun gnus-number-to-header (number)
4635 "Return the header for article NUMBER."
4636 (let ((headers gnus-newsgroup-headers))
4637 (while (and headers
4638 (not (= number (mail-header-number (car headers)))))
4639 (pop headers))
4640 (when headers
4641 (car headers))))
4642
6748645f 4643(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4644 "Return the headers of the GENERATIONeth parent of HEADERS."
4645 (unless generation
4646 (setq generation 1))
a8151ef7 4647 (let ((parent t)
6748645f 4648 (headers in-headers)
a8151ef7 4649 references)
6748645f
LMI
4650 (while (and parent
4651 (not (zerop generation))
4652 (setq references (mail-header-references headers)))
4653 (setq headers (if (and references
4654 (setq parent (gnus-parent-id references)))
4655 (car (gnus-id-to-thread parent))
4656 nil))
4657 (decf generation))
4658 (and (not (eq headers in-headers))
4659 headers)))
eec82323
LMI
4660
4661(defun gnus-id-to-thread (id)
4662 "Return the (sub-)thread where ID appears."
4663 (gnus-gethash id gnus-newsgroup-dependencies))
4664
4665(defun gnus-id-to-article (id)
4666 "Return the article number of ID."
4667 (let ((thread (gnus-id-to-thread id)))
4668 (when (and thread
4669 (car thread))
4670 (mail-header-number (car thread)))))
4671
4672(defun gnus-id-to-header (id)
4673 "Return the article headers of ID."
4674 (car (gnus-id-to-thread id)))
4675
4676(defun gnus-article-displayed-root-p (article)
4677 "Say whether ARTICLE is a root(ish) article."
4678 (let ((level (gnus-summary-thread-level article))
4679 (refs (mail-header-references (gnus-summary-article-header article)))
4680 particle)
4681 (cond
4682 ((null level) nil)
4683 ((zerop level) t)
4684 ((null refs) t)
4685 ((null (gnus-parent-id refs)) t)
4686 ((and (= 1 level)
4687 (null (setq particle (gnus-id-to-article
4688 (gnus-parent-id refs))))
4689 (null (gnus-summary-thread-level particle)))))))
4690
4691(defun gnus-root-id (id)
4692 "Return the id of the root of the thread where ID appears."
4693 (let (last-id prev)
6748645f 4694 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4695 (setq last-id id
4696 id (gnus-parent-id (mail-header-references prev))))
4697 last-id))
4698
6748645f
LMI
4699(defun gnus-articles-in-thread (thread)
4700 "Return the list of articles in THREAD."
4701 (cons (mail-header-number (car thread))
4702 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4703
eec82323
LMI
4704(defun gnus-remove-thread (id &optional dont-remove)
4705 "Remove the thread that has ID in it."
6748645f 4706 (let (headers thread last-id)
eec82323 4707 ;; First go up in this thread until we find the root.
6748645f
LMI
4708 (setq last-id (gnus-root-id id)
4709 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4710 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4711 ;; been gathered into some loose thread, so we have to search
4712 ;; through the threads to find the thread we wanted.
4713 (let ((threads gnus-newsgroup-threads)
4714 sub)
4715 (while threads
4716 (setq sub (car threads))
4717 (if (stringp (car sub))
4718 ;; This is a gathered thread, so we look at the roots
4719 ;; below it to find whether this article is in this
4720 ;; gathered root.
4721 (progn
4722 (setq sub (cdr sub))
4723 (while sub
4724 (when (member (caar sub) headers)
4725 (setq thread (car threads)
4726 threads nil
4727 sub nil))
4728 (setq sub (cdr sub))))
4729 ;; It's an ordinary thread, so we check it.
4730 (when (eq (car sub) (car headers))
4731 (setq thread sub
4732 threads nil)))
4733 (setq threads (cdr threads)))
4734 ;; If this article is in no thread, then it's a root.
4735 (if thread
4736 (unless dont-remove
4737 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4738 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4739 (when thread
4740 (prog1
4741 thread ; We return this thread.
4742 (unless dont-remove
4743 (if (stringp (car thread))
4744 (progn
4745 ;; If we use dummy roots, then we have to remove the
4746 ;; dummy root as well.
4747 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4748 ;; We go to the dummy root by going to
4749 ;; the first sub-"thread", and then one line up.
4750 (gnus-summary-goto-article
4751 (mail-header-number (caadr thread)))
4752 (forward-line -1)
eec82323
LMI
4753 (gnus-delete-line)
4754 (gnus-data-compute-positions))
4755 (setq thread (cdr thread))
4756 (while thread
4757 (gnus-remove-thread-1 (car thread))
4758 (setq thread (cdr thread))))
4759 (gnus-remove-thread-1 thread))))))))
4760
4761(defun gnus-remove-thread-1 (thread)
4762 "Remove the thread THREAD recursively."
4763 (let ((number (mail-header-number (pop thread)))
4764 d)
4765 (setq thread (reverse thread))
4766 (while thread
4767 (gnus-remove-thread-1 (pop thread)))
4768 (when (setq d (gnus-data-find number))
4769 (goto-char (gnus-data-pos d))
16409b0b 4770 (gnus-summary-show-thread)
eec82323
LMI
4771 (gnus-data-remove
4772 number
01c52d31 4773 (- (point-at-bol)
eec82323 4774 (prog1
01c52d31 4775 (1+ (point-at-eol))
eec82323
LMI
4776 (gnus-delete-line)))))))
4777
4921bbdd 4778(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4779 (sort (mapcar (lambda (thread)
4780 (cons (car thread)
4781 (and (cdr thread)
4921bbdd 4782 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4783 threads) func))
4784
4921bbdd
CY
4785(defun gnus-sort-threads-loop (threads func)
4786 (let* ((superthread (cons nil threads))
4787 (stack (list (cons superthread threads)))
4788 remaining-threads thread)
4789 (while stack
4790 (setq remaining-threads (cdr (car stack)))
4791 (if remaining-threads
4792 (progn (setq thread (car remaining-threads))
4793 (setcdr (car stack) (cdr remaining-threads))
4794 (if (cdr thread)
4795 (push (cons thread (cdr thread)) stack)))
4796 (setq thread (caar stack))
4797 (setcdr thread (sort (cdr thread) func))
4798 (pop stack)))
4799 (cdr superthread)))
4800
eec82323
LMI
4801(defun gnus-sort-threads (threads)
4802 "Sort THREADS."
4803 (if (not gnus-thread-sort-functions)
4804 threads
6748645f 4805 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4806 (prog1
4807 (condition-case nil
4808 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4809 (gnus-sort-threads-recursive
4810 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4811 ;; Even after binding max-lisp-eval-depth, the recursive
4812 ;; sorter might fail for very long threads. In that case,
4813 ;; try using a (less well-tested) non-recursive sorter.
4814 (error (gnus-sort-threads-loop
4815 threads (gnus-make-sort-function
4816 gnus-thread-sort-functions))))
4817 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4818
4819(defun gnus-sort-articles (articles)
4820 "Sort ARTICLES."
4821 (when gnus-article-sort-functions
4822 (gnus-message 7 "Sorting articles...")
4823 (prog1
4824 (setq gnus-newsgroup-headers
4825 (sort articles (gnus-make-sort-function
4826 gnus-article-sort-functions)))
4827 (gnus-message 7 "Sorting articles...done"))))
4828
4829;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4830(defmacro gnus-thread-header (thread)
16409b0b
GM
4831 "Return header of first article in THREAD.
4832Note that THREAD must never, ever be anything else than a variable -
4833using some other form will lead to serious barfage."
eec82323
LMI
4834 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4835 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4836 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4837 (vector thread) 2))
4838
4839(defsubst gnus-article-sort-by-number (h1 h2)
4840 "Sort articles by article number."
4841 (< (mail-header-number h1)
4842 (mail-header-number h2)))
4843
4844(defun gnus-thread-sort-by-number (h1 h2)
4845 "Sort threads by root article number."
4846 (gnus-article-sort-by-number
4847 (gnus-thread-header h1) (gnus-thread-header h2)))
4848
23f87bed 4849(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4850 "Sort articles randomly."
23f87bed
MB
4851 (zerop (random 2)))
4852
4853(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4854 "Sort threads randomly."
23f87bed
MB
4855 (gnus-article-sort-by-random
4856 (gnus-thread-header h1) (gnus-thread-header h2)))
4857
eec82323
LMI
4858(defsubst gnus-article-sort-by-lines (h1 h2)
4859 "Sort articles by article Lines header."
4860 (< (mail-header-lines h1)
4861 (mail-header-lines h2)))
4862
4863(defun gnus-thread-sort-by-lines (h1 h2)
4864 "Sort threads by root article Lines header."
4865 (gnus-article-sort-by-lines
4866 (gnus-thread-header h1) (gnus-thread-header h2)))
4867
16409b0b
GM
4868(defsubst gnus-article-sort-by-chars (h1 h2)
4869 "Sort articles by octet length."
4870 (< (mail-header-chars h1)
4871 (mail-header-chars h2)))
4872
4873(defun gnus-thread-sort-by-chars (h1 h2)
4874 "Sort threads by root article octet length."
4875 (gnus-article-sort-by-chars
4876 (gnus-thread-header h1) (gnus-thread-header h2)))
4877
eec82323
LMI
4878(defsubst gnus-article-sort-by-author (h1 h2)
4879 "Sort articles by root author."
b4fde39f 4880 (gnus-string<
eec82323
LMI
4881 (let ((extract (funcall
4882 gnus-extract-address-components
4883 (mail-header-from h1))))
4884 (or (car extract) (cadr extract) ""))
4885 (let ((extract (funcall
4886 gnus-extract-address-components
4887 (mail-header-from h2))))
4888 (or (car extract) (cadr extract) ""))))
4889
4890(defun gnus-thread-sort-by-author (h1 h2)
4891 "Sort threads by root author."
4892 (gnus-article-sort-by-author
4893 (gnus-thread-header h1) (gnus-thread-header h2)))
4894
01c52d31
MB
4895(defsubst gnus-article-sort-by-recipient (h1 h2)
4896 "Sort articles by recipient."
4897 (gnus-string<
4898 (let ((extract (funcall
4899 gnus-extract-address-components
4900 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4901 (or (car extract) (cadr extract)))
4902 (let ((extract (funcall
4903 gnus-extract-address-components
4904 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4905 (or (car extract) (cadr extract)))))
4906
4907(defun gnus-thread-sort-by-recipient (h1 h2)
4908 "Sort threads by root recipient."
4909 (gnus-article-sort-by-recipient
4910 (gnus-thread-header h1) (gnus-thread-header h2)))
4911
eec82323
LMI
4912(defsubst gnus-article-sort-by-subject (h1 h2)
4913 "Sort articles by root subject."
b4fde39f 4914 (gnus-string<
eec82323
LMI
4915 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4916 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4917
4918(defun gnus-thread-sort-by-subject (h1 h2)
4919 "Sort threads by root subject."
4920 (gnus-article-sort-by-subject
4921 (gnus-thread-header h1) (gnus-thread-header h2)))
4922
4923(defsubst gnus-article-sort-by-date (h1 h2)
4924 "Sort articles by root article date."
16409b0b 4925 (time-less-p
eec82323
LMI
4926 (gnus-date-get-time (mail-header-date h1))
4927 (gnus-date-get-time (mail-header-date h2))))
4928
4929(defun gnus-thread-sort-by-date (h1 h2)
4930 "Sort threads by root article date."
4931 (gnus-article-sort-by-date
4932 (gnus-thread-header h1) (gnus-thread-header h2)))
4933
4934(defsubst gnus-article-sort-by-score (h1 h2)
4935 "Sort articles by root article score.
4936Unscored articles will be counted as having a score of zero."
4937 (> (or (cdr (assq (mail-header-number h1)
4938 gnus-newsgroup-scored))
4939 gnus-summary-default-score 0)
4940 (or (cdr (assq (mail-header-number h2)
4941 gnus-newsgroup-scored))
4942 gnus-summary-default-score 0)))
4943
4944(defun gnus-thread-sort-by-score (h1 h2)
4945 "Sort threads by root article score."
4946 (gnus-article-sort-by-score
4947 (gnus-thread-header h1) (gnus-thread-header h2)))
4948
4949(defun gnus-thread-sort-by-total-score (h1 h2)
4950 "Sort threads by the sum of all scores in the thread.
4951Unscored articles will be counted as having a score of zero."
4952 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4953
4954(defun gnus-thread-total-score (thread)
16409b0b 4955 ;; This function find the total score of THREAD.
23f87bed
MB
4956 (cond
4957 ((null thread)
4958 0)
4959 ((consp thread)
4960 (if (stringp (car thread))
4961 (apply gnus-thread-score-function 0
4962 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4963 (gnus-thread-total-score-1 thread)))
4964 (t
4965 (gnus-thread-total-score-1 (list thread)))))
4966
4967(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4968 "Sort threads such that the thread with the most recently arrived article comes first."
4969 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4970
4971(defun gnus-thread-highest-number (thread)
4972 "Return the highest article number in THREAD."
4973 (apply 'max (mapcar (lambda (header)
4974 (mail-header-number header))
4975 (message-flatten-list thread))))
4976
4977(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4978 "Sort threads such that the thread with the most recently dated article comes first."
4979 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4980
4981(defun gnus-thread-latest-date (thread)
4982 "Return the highest article date in THREAD."
4983 (let ((previous-time 0))
4984 (apply 'max
4985 (mapcar
4986 (lambda (header)
4987 (setq previous-time
4988 (condition-case ()
4989 (time-to-seconds (mail-header-parse-date
4990 (mail-header-date header)))
4991 (error previous-time))))
4992 (sort
4993 (message-flatten-list thread)
4994 (lambda (h1 h2)
4995 (< (mail-header-number h1)
4996 (mail-header-number h2))))))))
eec82323
LMI
4997
4998(defun gnus-thread-total-score-1 (root)
4999 ;; This function find the total score of the thread below ROOT.
5000 (setq root (car root))
5001 (apply gnus-thread-score-function
5002 (or (append
5003 (mapcar 'gnus-thread-total-score
6748645f 5004 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5005 (when (> (mail-header-number root) 0)
5006 (list (or (cdr (assq (mail-header-number root)
5007 gnus-newsgroup-scored))
5008 gnus-summary-default-score 0))))
5009 (list gnus-summary-default-score)
5010 '(0))))
5011
5012;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5013(defvar gnus-tmp-prev-subject nil)
5014(defvar gnus-tmp-false-parent nil)
5015(defvar gnus-tmp-root-expunged nil)
5016(defvar gnus-tmp-dummy-line nil)
5017
16409b0b
GM
5018(defun gnus-extra-header (type &optional header)
5019 "Return the extra header of TYPE."
5020 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5021 ""))
5022
23f87bed
MB
5023(defvar gnus-tmp-thread-tree-header-string "")
5024
5025(defcustom gnus-sum-thread-tree-root "> "
5026 "With %B spec, used for the root of a thread.
5027If nil, use subject instead."
bf247b6e 5028 :version "22.1"
ad136a7c 5029 :type '(radio (const :format "%v " nil) string)
23f87bed 5030 :group 'gnus-thread)
01c52d31 5031
23f87bed
MB
5032(defcustom gnus-sum-thread-tree-false-root "> "
5033 "With %B spec, used for a false root of a thread.
5034If nil, use subject instead."
bf247b6e 5035 :version "22.1"
ad136a7c 5036 :type '(radio (const :format "%v " nil) string)
23f87bed 5037 :group 'gnus-thread)
01c52d31 5038
23f87bed
MB
5039(defcustom gnus-sum-thread-tree-single-indent ""
5040 "With %B spec, used for a thread with just one message.
5041If nil, use subject instead."
bf247b6e 5042 :version "22.1"
ad136a7c 5043 :type '(radio (const :format "%v " nil) string)
23f87bed 5044 :group 'gnus-thread)
01c52d31 5045
23f87bed
MB
5046(defcustom gnus-sum-thread-tree-vertical "| "
5047 "With %B spec, used for drawing a vertical line."
bf247b6e 5048 :version "22.1"
23f87bed
MB
5049 :type 'string
5050 :group 'gnus-thread)
01c52d31 5051
23f87bed
MB
5052(defcustom gnus-sum-thread-tree-indent " "
5053 "With %B spec, used for indenting."
bf247b6e 5054 :version "22.1"
23f87bed
MB
5055 :type 'string
5056 :group 'gnus-thread)
01c52d31 5057
23f87bed
MB
5058(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5059 "With %B spec, used for a leaf with brothers."
bf247b6e 5060 :version "22.1"
23f87bed
MB
5061 :type 'string
5062 :group 'gnus-thread)
01c52d31 5063
23f87bed
MB
5064(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5065 "With %B spec, used for a leaf without brothers."
bf247b6e 5066 :version "22.1"
23f87bed
MB
5067 :type 'string
5068 :group 'gnus-thread)
5069
1fc34624
GM
5070(defcustom gnus-summary-display-while-building nil
5071 "If non-nil, show and update the summary buffer as it's being built.
5072If the value is t, update the buffer after every line is inserted. If
5073the value is an integer (N), update the display every N lines."
5074 :version "22.1"
5075 :group 'gnus-thread
5076 :type '(choice (const :tag "off" nil)
5077 number
5078 (const :tag "frequently" t)))
5079
eec82323
LMI
5080(defun gnus-summary-prepare-threads (threads)
5081 "Prepare summary buffer from THREADS and indentation LEVEL.
5082THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5083or a straight list of headers."
5084 (gnus-message 7 "Generating summary...")
5085
5086 (setq gnus-newsgroup-threads threads)
5087 (beginning-of-line)
5088
5089 (let ((gnus-tmp-level 0)
5090 (default-score (or gnus-summary-default-score 0))
5091 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5092 (building-line-count gnus-summary-display-while-building)
5093 (building-count (integerp gnus-summary-display-while-building))
eec82323 5094 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5095 new-roots gnus-tmp-new-adopts thread-end simp-subject
5096 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5097 gnus-tmp-replied gnus-tmp-subject-or-nil
5098 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5099 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5100 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5101 tree-stack)
eec82323 5102
23f87bed
MB
5103 (setq gnus-tmp-prev-subject nil
5104 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5105
5106 (if (vectorp (car threads))
5107 ;; If this is a straight (sic) list of headers, then a
5108 ;; threaded summary display isn't required, so we just create
5109 ;; an unthreaded one.
5110 (gnus-summary-prepare-unthreaded threads)
5111
5112 ;; Do the threaded display.
5113
23f87bed
MB
5114 (if gnus-summary-display-while-building
5115 (switch-to-buffer (buffer-name)))
eec82323
LMI
5116 (while (or threads stack gnus-tmp-new-adopts new-roots)
5117
5118 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5119 (or (not stack)
5120 (= (caar stack) 0))
5121 (not gnus-tmp-false-parent)
5122 (or gnus-tmp-new-adopts new-roots))
5123 (if gnus-tmp-new-adopts
5124 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5125 thread (list (car gnus-tmp-new-adopts))
5126 gnus-tmp-header (caar thread)
5127 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5128 (when new-roots
5129 (setq thread (list (car new-roots))
5130 gnus-tmp-header (caar thread)
5131 new-roots (cdr new-roots))))
5132
5133 (if threads
5134 ;; If there are some threads, we do them before the
5135 ;; threads on the stack.
5136 (setq thread threads
5137 gnus-tmp-header (caar thread))
5138 ;; There were no current threads, so we pop something off
5139 ;; the stack.
5140 (setq state (car stack)
5141 gnus-tmp-level (car state)
23f87bed
MB
5142 tree-stack (cadr state)
5143 thread (caddr state)
eec82323
LMI
5144 stack (cdr stack)
5145 gnus-tmp-header (caar thread))))
5146
5147 (setq gnus-tmp-false-parent nil)
5148 (setq gnus-tmp-root-expunged nil)
5149 (setq thread-end nil)
5150
5151 (if (stringp gnus-tmp-header)
5152 ;; The header is a dummy root.
5153 (cond
5154 ((eq gnus-summary-make-false-root 'adopt)
5155 ;; We let the first article adopt the rest.
5156 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5157 (cddar thread)))
5158 (setq gnus-tmp-gathered
5159 (nconc (mapcar
5160 (lambda (h) (mail-header-number (car h)))
5161 (cddar thread))
5162 gnus-tmp-gathered))
5163 (setq thread (cons (list (caar thread)
5164 (cadar thread))
5165 (cdr thread)))
5166 (setq gnus-tmp-level -1
5167 gnus-tmp-false-parent t))
5168 ((eq gnus-summary-make-false-root 'empty)
5169 ;; We print adopted articles with empty subject fields.
5170 (setq gnus-tmp-gathered
5171 (nconc (mapcar
5172 (lambda (h) (mail-header-number (car h)))
5173 (cddar thread))
5174 gnus-tmp-gathered))
5175 (setq gnus-tmp-level -1))
5176 ((eq gnus-summary-make-false-root 'dummy)
5177 ;; We remember that we probably want to output a dummy
5178 ;; root.
5179 (setq gnus-tmp-dummy-line gnus-tmp-header)
5180 (setq gnus-tmp-prev-subject gnus-tmp-header))
5181 (t
5182 ;; We do not make a root for the gathered
5183 ;; sub-threads at all.
5184 (setq gnus-tmp-level -1)))
5185
5186 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5187 subject (mail-header-subject gnus-tmp-header)
5188 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5189
5190 (cond
5191 ;; If the thread has changed subject, we might want to make
5192 ;; this subthread into a root.
5193 ((and (null gnus-thread-ignore-subject)
5194 (not (zerop gnus-tmp-level))
5195 gnus-tmp-prev-subject
23f87bed 5196 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5197 (setq new-roots (nconc new-roots (list (car thread)))
5198 thread-end t
5199 gnus-tmp-header nil))
5200 ;; If the article lies outside the current limit,
5201 ;; then we do not display it.
5202 ((not (memq number gnus-newsgroup-limit))
5203 (setq gnus-tmp-gathered
5204 (nconc (mapcar
5205 (lambda (h) (mail-header-number (car h)))
5206 (cdar thread))
5207 gnus-tmp-gathered))
5208 (setq gnus-tmp-new-adopts (if (cdar thread)
5209 (append gnus-tmp-new-adopts
5210 (cdar thread))
5211 gnus-tmp-new-adopts)
5212 thread-end t
5213 gnus-tmp-header nil)
5214 (when (zerop gnus-tmp-level)
5215 (setq gnus-tmp-root-expunged t)))
5216 ;; Perhaps this article is to be marked as read?
5217 ((and gnus-summary-mark-below
5218 (< (or (cdr (assq number gnus-newsgroup-scored))
5219 default-score)
5220 gnus-summary-mark-below)
5221 ;; Don't touch sparse articles.
5222 (not (gnus-summary-article-sparse-p number))
5223 (not (gnus-summary-article-ancient-p number)))
5224 (setq gnus-newsgroup-unreads
5225 (delq number gnus-newsgroup-unreads))
5226 (if gnus-newsgroup-auto-expire
23f87bed
MB
5227 (setq gnus-newsgroup-expirable
5228 (gnus-add-to-sorted-list
5229 gnus-newsgroup-expirable number))
eec82323
LMI
5230 (push (cons number gnus-low-score-mark)
5231 gnus-newsgroup-reads))))
5232
5233 (when gnus-tmp-header
5234 ;; We may have an old dummy line to output before this
5235 ;; article.
6748645f
LMI
5236 (when (and gnus-tmp-dummy-line
5237 (gnus-subject-equal
5238 gnus-tmp-dummy-line
5239 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5240 (gnus-summary-insert-dummy-line
5241 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5242 (setq gnus-tmp-dummy-line nil))
5243
5244 ;; Compute the mark.
5245 (setq gnus-tmp-unread (gnus-article-mark number))
5246
5247 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5248 gnus-tmp-header gnus-tmp-level)
5249 gnus-newsgroup-data)
5250
5251 ;; Actually insert the line.
5252 (setq
5253 gnus-tmp-subject-or-nil
5254 (cond
5255 ((and gnus-thread-ignore-subject
5256 gnus-tmp-prev-subject
23f87bed 5257 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5258 subject)
5259 ((zerop gnus-tmp-level)
5260 (if (and (eq gnus-summary-make-false-root 'empty)
5261 (memq number gnus-tmp-gathered)
5262 gnus-tmp-prev-subject
23f87bed 5263 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5264 gnus-summary-same-subject
5265 subject))
5266 (t gnus-summary-same-subject)))
5267 (if (and (eq gnus-summary-make-false-root 'adopt)
5268 (= gnus-tmp-level 1)
5269 (memq number gnus-tmp-gathered))
5270 (setq gnus-tmp-opening-bracket ?\<
5271 gnus-tmp-closing-bracket ?\>)
5272 (setq gnus-tmp-opening-bracket ?\[
5273 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5274 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5275 (gnus-make-thread-indent-array
5276 (max (* 2 (length gnus-thread-indent-array))
5277 gnus-tmp-level)))
eec82323
LMI
5278 (setq
5279 gnus-tmp-indentation
5280 (aref gnus-thread-indent-array gnus-tmp-level)
5281 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5282 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5283 gnus-summary-default-score 0)
5284 gnus-tmp-score-char
5285 (if (or (null gnus-summary-default-score)
5286 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5287 gnus-summary-zcore-fuzz))
23f87bed 5288 ? ;Whitespace
eec82323
LMI
5289 (if (< gnus-tmp-score gnus-summary-default-score)
5290 gnus-score-below-mark gnus-score-over-mark))
5291 gnus-tmp-replied
5292 (cond ((memq number gnus-newsgroup-processable)
5293 gnus-process-mark)
5294 ((memq number gnus-newsgroup-cached)
5295 gnus-cached-mark)
5296 ((memq number gnus-newsgroup-replied)
5297 gnus-replied-mark)
23f87bed
MB
5298 ((memq number gnus-newsgroup-forwarded)
5299 gnus-forwarded-mark)
eec82323
LMI
5300 ((memq number gnus-newsgroup-saved)
5301 gnus-saved-mark)
23f87bed
MB
5302 ((memq number gnus-newsgroup-recent)
5303 gnus-recent-mark)
5304 ((memq number gnus-newsgroup-unseen)
5305 gnus-unseen-mark)
5306 (t gnus-no-mark))
5307 gnus-tmp-downloaded
5308 (cond ((memq number gnus-newsgroup-undownloaded)
5309 gnus-undownloaded-mark)
5310 (gnus-newsgroup-agentized
5311 gnus-downloaded-mark)
5312 (t
5313 gnus-no-mark))
eec82323
LMI
5314 gnus-tmp-from (mail-header-from gnus-tmp-header)
5315 gnus-tmp-name
5316 (cond
5317 ((string-match "<[^>]+> *$" gnus-tmp-from)
5318 (setq beg-match (match-beginning 0))
23f87bed
MB
5319 (or (and (string-match "^\".+\"" gnus-tmp-from)
5320 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5321 (substring gnus-tmp-from 0 beg-match)))
5322 ((string-match "(.+)" gnus-tmp-from)
5323 (substring gnus-tmp-from
5324 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5325 (t gnus-tmp-from))
5326
5327 ;; Do the %B string
5328 gnus-tmp-thread-tree-header-string
5329 (cond
5330 ((not gnus-show-threads) "")
5331 ((zerop gnus-tmp-level)
5332 (cond ((cdar thread)
5333 (or gnus-sum-thread-tree-root subject))
5334 (gnus-tmp-new-adopts
5335 (or gnus-sum-thread-tree-false-root subject))
5336 (t
5337 (or gnus-sum-thread-tree-single-indent subject))))
5338 (t
5339 (concat (apply 'concat
5340 (mapcar (lambda (item)
5341 (if (= item 1)
5342 gnus-sum-thread-tree-vertical
5343 gnus-sum-thread-tree-indent))
5344 (cdr (reverse tree-stack))))
5345 (if (nth 1 thread)
5346 gnus-sum-thread-tree-leaf-with-other
5347 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5348 (when (string= gnus-tmp-name "")
5349 (setq gnus-tmp-name gnus-tmp-from))
5350 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5351 (setq gnus-tmp-lines -1))
5352 (if (= gnus-tmp-lines -1)
5353 (setq gnus-tmp-lines "?")
5354 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5355 (gnus-put-text-property
64763fe3
MB
5356 (point)
5357 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5358 'gnus-number number)
64763fe3
MB
5359 (when gnus-visual-p
5360 (forward-line -1)
5361 (gnus-run-hooks 'gnus-summary-update-hook)
5362 (forward-line 1))
eec82323 5363
64763fe3 5364 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5365
5366 (when (nth 1 thread)
23f87bed
MB
5367 (push (list (max 0 gnus-tmp-level)
5368 (copy-sequence tree-stack)
5369 (nthcdr 1 thread))
5370 stack))
5371 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5372 (incf gnus-tmp-level)
5373 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5374 (if gnus-summary-display-while-building
5375 (if building-count
5376 (progn
5377 ;; use a set frequency
5378 (setq building-line-count (1- building-line-count))
5379 (when (= building-line-count 0)
5380 (sit-for 0)
5381 (setq building-line-count
5382 gnus-summary-display-while-building)))
5383 ;; always
5384 (sit-for 0)))
eec82323
LMI
5385 (unless threads
5386 (setq gnus-tmp-level 0)))))
5387 (gnus-message 7 "Generating summary...done"))
5388
5389(defun gnus-summary-prepare-unthreaded (headers)
5390 "Generate an unthreaded summary buffer based on HEADERS."
5391 (let (header number mark)
5392
5393 (beginning-of-line)
5394
5395 (while headers
5396 ;; We may have to root out some bad articles...
5397 (when (memq (setq number (mail-header-number
5398 (setq header (pop headers))))
5399 gnus-newsgroup-limit)
5400 ;; Mark article as read when it has a low score.
5401 (when (and gnus-summary-mark-below
5402 (< (or (cdr (assq number gnus-newsgroup-scored))
5403 gnus-summary-default-score 0)
5404 gnus-summary-mark-below)
5405 (not (gnus-summary-article-ancient-p number)))
5406 (setq gnus-newsgroup-unreads
5407 (delq number gnus-newsgroup-unreads))
5408 (if gnus-newsgroup-auto-expire
5409 (push number gnus-newsgroup-expirable)
5410 (push (cons number gnus-low-score-mark)
5411 gnus-newsgroup-reads)))
5412
5413 (setq mark (gnus-article-mark number))
5414 (push (gnus-data-make number mark (1+ (point)) header 0)
5415 gnus-newsgroup-data)
5416 (gnus-summary-insert-line
5417 header 0 number
23f87bed 5418 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5419 mark (memq number gnus-newsgroup-replied)
5420 (memq number gnus-newsgroup-expirable)
5421 (mail-header-subject header) nil
5422 (cdr (assq number gnus-newsgroup-scored))
5423 (memq number gnus-newsgroup-processable))))))
5424
16409b0b
GM
5425(defun gnus-summary-remove-list-identifiers ()
5426 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5427 (let ((regexp (if (consp gnus-list-identifiers)
5428 (mapconcat 'identity gnus-list-identifiers " *\\|")
5429 gnus-list-identifiers))
5430 changed subject)
5431 (when regexp
01c52d31 5432 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5433 (dolist (header gnus-newsgroup-headers)
5434 (setq subject (mail-header-subject header)
5435 changed nil)
01c52d31 5436 (while (string-match regexp subject)
23f87bed 5437 (setq subject
01c52d31 5438 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5439 (substring subject (match-end 0)))
5440 changed t))
23f87bed 5441 (when changed
01c52d31
MB
5442 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5443 (setq subject
5444 (concat (substring subject 0 (match-beginning 1))
5445 (substring subject (match-end 1)))))
23f87bed
MB
5446 (mail-header-set-subject header subject))))))
5447
5448(defun gnus-fetch-headers (articles)
5449 "Fetch headers of ARTICLES."
5450 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5451 (gnus-message 5 "Fetching headers for %s..." name)
5452 (prog1
5453 (if (eq 'nov
5454 (setq gnus-headers-retrieved-by
5455 (gnus-retrieve-headers
5456 articles gnus-newsgroup-name
5457 ;; We might want to fetch old headers, but
5458 ;; not if there is only 1 article.
5459 (and (or (and
5460 (not (eq gnus-fetch-old-headers 'some))
5461 (not (numberp gnus-fetch-old-headers)))
5462 (> (length articles) 1))
5463 gnus-fetch-old-headers))))
5464 (gnus-get-newsgroup-headers-xover
5465 articles nil nil gnus-newsgroup-name t)
5466 (gnus-get-newsgroup-headers))
5467 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5468
6748645f 5469(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5470 "Select newsgroup GROUP.
6748645f
LMI
5471If READ-ALL is non-nil, all articles in the group are selected.
5472If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5473 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5474 ;;!!! Dirty hack; should be removed.
5475 (gnus-summary-ignore-duplicates
23f87bed 5476 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5477 t
5478 gnus-summary-ignore-duplicates))
5479 (info (nth 2 entry))
01c52d31 5480 charset articles fetched-articles cached)
eec82323
LMI
5481
5482 (unless (gnus-check-server
475e0e0c
GM
5483 (set (make-local-variable 'gnus-current-select-method)
5484 (gnus-find-method-for-group group)))
eec82323 5485 (error "Couldn't open server"))
01c52d31 5486 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5487
5488 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5489 (gnus-activate-group group) ; Or we can activate it...
5490 (progn ; Or we bug out.
5491 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5492 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5493 (error
5494 "Couldn't activate group %s: %s"
5495 (mm-decode-coding-string group charset)
5496 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5497
5498 (unless (gnus-request-group group t)
01c52d31
MB
5499 (when (equal major-mode 'gnus-summary-mode)
5500 (gnus-kill-buffer (current-buffer)))
5501 (error "Couldn't request group %s: %s"
5502 (mm-decode-coding-string group charset)
5503 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5504
23f87bed 5505 (when gnus-agent
54506618 5506 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5507
23f87bed
MB
5508 (setq gnus-summary-use-undownloaded-faces
5509 (gnus-agent-find-parameter
5510 group
5511 'agent-enable-undownloaded-faces)))
5512
5513 (setq gnus-newsgroup-name group
5514 gnus-newsgroup-unselected nil
5515 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5516
5517 (let ((display (gnus-group-find-parameter group 'display)))
5518 (setq gnus-newsgroup-display
5519 (cond
5520 ((not (zerop (or (car-safe read-all) 0)))
5521 ;; The user entered the group with C-u SPC/RET, let's show
5522 ;; all articles.
5523 'gnus-not-ignore)
5524 ((eq display 'all)
5525 'gnus-not-ignore)
5526 ((arrayp display)
5527 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5528 ((numberp display)
5529 ;; The following is probably the "correct" solution, but
5530 ;; it makes Gnus fetch all headers and then limit the
5531 ;; articles (which is slow), so instead we hack the
5532 ;; select-articles parameter instead. -- Simon Josefsson
5533 ;; <jas@kth.se>
5534 ;;
5535 ;; (gnus-byte-compile
5536 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5537 ;; display)))))
5538 (setq select-articles
5539 (gnus-uncompress-range
5540 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5541 (if (> tmp 0)
5542 tmp
5543 1))
5544 (cdr (gnus-active group)))))
5545 nil)
5546 (t
5547 nil))))
eec82323 5548
23f87bed 5549 (gnus-summary-setup-default-charset)
eec82323
LMI
5550
5551 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5552 (when (gnus-virtual-group-p group)
5553 (setq cached gnus-newsgroup-cached))
5554
5555 (setq gnus-newsgroup-unreads
23f87bed
MB
5556 (gnus-sorted-ndifference
5557 (gnus-sorted-ndifference gnus-newsgroup-unreads
5558 gnus-newsgroup-marked)
eec82323
LMI
5559 gnus-newsgroup-dormant))
5560
5561 (setq gnus-newsgroup-processable nil)
5562
5563 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5564
23f87bed
MB
5565 ;; Adjust and set lists of article marks.
5566 (when info
5567 (gnus-adjust-marked-articles info))
6748645f
LMI
5568 (if (setq articles select-articles)
5569 (setq gnus-newsgroup-unselected
23f87bed 5570 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5571 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5572
5573 (cond
5574 ((null articles)
5575 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5576 'quit)
5577 ((eq articles 0) nil)
5578 (t
5579 ;; Init the dependencies hash table.
5580 (setq gnus-newsgroup-dependencies
5581 (gnus-make-hashtable (length articles)))
16409b0b 5582 (gnus-set-global-variables)
eec82323 5583 ;; Retrieve the headers and read them in.
23f87bed
MB
5584
5585 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5586
5587 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5588 (when cached
5589 (setq gnus-newsgroup-cached cached))
5590
5591 ;; Suppress duplicates?
5592 (when gnus-suppress-duplicates
5593 (gnus-dup-suppress-articles))
5594
5595 ;; Set the initial limit.
5596 (setq gnus-newsgroup-limit (copy-sequence articles))
5597 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5598 (setq fetched-articles
5599 (mapcar (lambda (headers) (mail-header-number headers))
5600 gnus-newsgroup-headers))
5601 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5602 (setq gnus-newsgroup-unreads
23f87bed
MB
5603 (gnus-sorted-nintersection
5604 gnus-newsgroup-unreads fetched-articles))
5605 (gnus-compute-unseen-list)
5606
eec82323
LMI
5607 ;; Removed marked articles that do not exist.
5608 (gnus-update-missing-marks
23f87bed 5609 (gnus-sorted-difference articles fetched-articles))
eec82323 5610 ;; We might want to build some more threads first.
6748645f
LMI
5611 (when (and gnus-fetch-old-headers
5612 (eq gnus-headers-retrieved-by 'nov))
5613 (if (eq gnus-fetch-old-headers 'invisible)
5614 (gnus-build-all-threads)
5615 (gnus-build-old-threads)))
5616 ;; Let the Gnus agent mark articles as read.
5617 (when gnus-agent
5618 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5619 ;; Remove list identifiers from subject
5620 (when gnus-list-identifiers
5621 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5622 ;; Check whether auto-expire is to be done in this group.
5623 (setq gnus-newsgroup-auto-expire
5624 (gnus-group-auto-expirable-p group))
5625 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5626 (unless (and gnus-single-article-buffer
5627 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5628 (gnus-article-setup-buffer))
5629 ;; First and last article in this newsgroup.
5630 (when gnus-newsgroup-headers
5631 (setq gnus-newsgroup-begin
5632 (mail-header-number (car gnus-newsgroup-headers))
5633 gnus-newsgroup-end
5634 (mail-header-number
5635 (gnus-last-element gnus-newsgroup-headers))))
5636 ;; GROUP is successfully selected.
5637 (or gnus-newsgroup-headers t)))))
5638
23f87bed
MB
5639(defun gnus-compute-unseen-list ()
5640 ;; The `seen' marks are treated specially.
5641 (if (not gnus-newsgroup-seen)
5642 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5643 (setq gnus-newsgroup-unseen
5644 (gnus-inverse-list-range-intersection
5645 gnus-newsgroup-articles gnus-newsgroup-seen))))
5646
d09ae6ca
GM
5647(declare-function gnus-get-predicate "gnus-agent" (predicate))
5648
23f87bed
MB
5649(defun gnus-summary-display-make-predicate (display)
5650 (require 'gnus-agent)
5651 (when (= (length display) 1)
5652 (setq display (car display)))
5653 (unless gnus-summary-display-cache
5654 (dolist (elem (append '((unread . unread)
5655 (read . read)
5656 (unseen . unseen))
5657 gnus-article-mark-lists))
5658 (push (cons (cdr elem)
5659 (gnus-byte-compile
5660 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5661 gnus-summary-display-cache)))
5662 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5663 (gnus-category-predicate-cache gnus-summary-display-cache))
5664 (gnus-get-predicate display)))
5665
5666;; Uses the dynamically bound `number' variable.
9efa445f 5667(defvar number)
23f87bed
MB
5668(defun gnus-article-marked-p (type &optional article)
5669 (let ((article (or article number)))
5670 (cond
5671 ((eq type 'tick)
5672 (memq article gnus-newsgroup-marked))
5673 ((eq type 'spam)
5674 (memq article gnus-newsgroup-spam-marked))
5675 ((eq type 'unsend)
5676 (memq article gnus-newsgroup-unsendable))
5677 ((eq type 'undownload)
5678 (memq article gnus-newsgroup-undownloaded))
5679 ((eq type 'download)
5680 (memq article gnus-newsgroup-downloadable))
5681 ((eq type 'unread)
5682 (memq article gnus-newsgroup-unreads))
5683 ((eq type 'read)
5684 (memq article gnus-newsgroup-reads))
5685 ((eq type 'dormant)
5686 (memq article gnus-newsgroup-dormant) )
5687 ((eq type 'expire)
5688 (memq article gnus-newsgroup-expirable))
5689 ((eq type 'reply)
5690 (memq article gnus-newsgroup-replied))
5691 ((eq type 'killed)
5692 (memq article gnus-newsgroup-killed))
5693 ((eq type 'bookmark)
5694 (assq article gnus-newsgroup-bookmarks))
5695 ((eq type 'score)
5696 (assq article gnus-newsgroup-scored))
5697 ((eq type 'save)
5698 (memq article gnus-newsgroup-saved))
5699 ((eq type 'cache)
5700 (memq article gnus-newsgroup-cached))
5701 ((eq type 'forward)
5702 (memq article gnus-newsgroup-forwarded))
5703 ((eq type 'seen)
5704 (not (memq article gnus-newsgroup-unseen)))
5705 ((eq type 'recent)
5706 (memq article gnus-newsgroup-recent))
5707 (t t))))
5708
eec82323 5709(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5710 "Find out what articles the user wants to read."
26c9afc3 5711 (let* ((articles
eec82323
LMI
5712 ;; Select all articles if `read-all' is non-nil, or if there
5713 ;; are no unread articles.
5714 (if (or read-all
5715 (and (zerop (length gnus-newsgroup-marked))
5716 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5717 ;; Fetch all if the predicate is non-nil.
5718 gnus-newsgroup-display)
5719 ;; We want to select the headers for all the articles in
5720 ;; the group, so we select either all the active
5721 ;; articles in the group, or (if that's nil), the
5722 ;; articles in the cache.
16409b0b 5723 (or
4b70e299 5724 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5725 (let ((active (gnus-active group)))
5726 (gnus-uncompress-range
5727 (cons (max (car active)
4b70e299
MB
5728 (- (cdr active)
5729 gnus-newsgroup-maximum-articles
5730 -1))
11abff8e
MB
5731 (cdr active))))
5732 (gnus-uncompress-range (gnus-active group)))
16409b0b 5733 (gnus-cache-articles-in-group group))
23f87bed
MB
5734 ;; Select only the "normal" subset of articles.
5735 (gnus-sorted-nunion
5736 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5737 gnus-newsgroup-unreads)))
eec82323
LMI
5738 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5739 (scored (length scored-list))
5740 (number (length articles))
5741 (marked (+ (length gnus-newsgroup-marked)
5742 (length gnus-newsgroup-dormant)))
5743 (select
5744 (cond
5745 ((numberp read-all)
5746 read-all)
23f87bed
MB
5747 ((numberp gnus-newsgroup-display)
5748 gnus-newsgroup-display)
eec82323
LMI
5749 (t
5750 (condition-case ()
5751 (cond
5752 ((and (or (<= scored marked) (= scored number))
5753 (numberp gnus-large-newsgroup)
5754 (> number gnus-large-newsgroup))
23f87bed
MB
5755 (let* ((cursor-in-echo-area nil)
5756 (initial (gnus-parameter-large-newsgroup-initial
5757 gnus-newsgroup-name))
5758 (input
5759 (read-string
5760 (format
5761 "How many articles from %s (%s %d): "
01c52d31 5762 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5763 (if initial "max" "default")
5764 number)
5765 (if initial
5766 (cons (number-to-string initial)
5767 0)))))
eec82323
LMI
5768 (if (string-match "^[ \t]*$" input) number input)))
5769 ((and (> scored marked) (< scored number)
5770 (> (- scored number) 20))
5771 (let ((input
5772 (read-string
5773 (format "%s %s (%d scored, %d total): "
5774 "How many articles from"
23f87bed
MB
5775 (gnus-group-decoded-name group)
5776 scored number))))
eec82323
LMI
5777 (if (string-match "^[ \t]*$" input)
5778 number input)))
5779 (t number))
d4dfaa19
DL
5780 (quit
5781 (message "Quit getting the articles to read")
5782 nil))))))
eec82323
LMI
5783 (setq select (if (stringp select) (string-to-number select) select))
5784 (if (or (null select) (zerop select))
5785 select
5786 (if (and (not (zerop scored)) (<= (abs select) scored))
5787 (progn
5788 (setq articles (sort scored-list '<))
5789 (setq number (length articles)))
5790 (setq articles (copy-sequence articles)))
5791
5792 (when (< (abs select) number)
5793 (if (< select 0)
5794 ;; Select the N oldest articles.
5795 (setcdr (nthcdr (1- (abs select)) articles) nil)
5796 ;; Select the N most recent articles.
5797 (setq articles (nthcdr (- number select) articles))))
5798 (setq gnus-newsgroup-unselected
23f87bed 5799 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5800 (when gnus-alter-articles-to-read-function
23f87bed 5801 (setq articles
a1506d29 5802 (sort
16409b0b 5803 (funcall gnus-alter-articles-to-read-function
23f87bed 5804 gnus-newsgroup-name articles)
16409b0b 5805 '<)))
eec82323
LMI
5806 articles)))
5807
5808(defun gnus-killed-articles (killed articles)
5809 (let (out)
5810 (while articles
5811 (when (inline (gnus-member-of-range (car articles) killed))
5812 (push (car articles) out))
5813 (setq articles (cdr articles)))
5814 out))
5815
5816(defun gnus-uncompress-marks (marks)
5817 "Uncompress the mark ranges in MARKS."
5818 (let ((uncompressed '(score bookmark))
5819 out)
5820 (while marks
5821 (if (memq (caar marks) uncompressed)
5822 (push (car marks) out)
5823 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5824 (setq marks (cdr marks)))
5825 out))
5826
23f87bed
MB
5827(defun gnus-article-mark-to-type (mark)
5828 "Return the type of MARK."
5829 (or (cadr (assq mark gnus-article-special-mark-lists))
5830 'list))
5831
5832(defun gnus-article-unpropagatable-p (mark)
5833 "Return whether MARK should be propagated to back end."
5834 (memq mark gnus-article-unpropagated-mark-lists))
5835
eec82323 5836(defun gnus-adjust-marked-articles (info)
16409b0b 5837 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5838 (let* ((marked-lists (gnus-info-marks info))
5839 (active (gnus-active (gnus-info-group info)))
5840 (min (car active))
5841 (max (cdr active))
5842 (types gnus-article-mark-lists)
54506618
MB
5843 marks var articles article mark mark-type
5844 bgn end)
eec82323 5845
23f87bed
MB
5846 (dolist (marks marked-lists)
5847 (setq mark (car marks)
5848 mark-type (gnus-article-mark-to-type mark)
5849 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5850
23f87bed
MB
5851 ;; We set the variable according to the type of the marks list,
5852 ;; and then adjust the marks to a subset of the active articles.
eec82323 5853 (cond
54506618 5854 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5855 ((eq mark-type 'list)
54506618
MB
5856 ;; Simultaneously uncompress and clip to active range
5857 ;; See gnus-uncompress-range for a description of possible marks
5858 (let (l lh)
5859 (if (not (cadr marks))
5860 (set var nil)
5861 (setq articles (if (numberp (cddr marks))
5862 (list (cdr marks))
5863 (cdr marks))
5864 lh (cons nil nil)
5865 l lh)
5866
5867 (while (setq article (pop articles))
5868 (cond ((consp article)
5869 (setq bgn (max (car article) min)
5870 end (min (cdr article) max))
5871 (while (<= bgn end)
5872 (setq l (setcdr l (cons bgn nil))
5873 bgn (1+ bgn))))
5874 ((and (<= min article)
5875 (>= max article))
5876 (setq l (setcdr l (cons article nil))))))
5877 (set var (cdr lh)))))
eec82323 5878 ;; Adjust assocs.
23f87bed
MB
5879 ((eq mark-type 'tuple)
5880 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5881 (when (not (listp (cdr (symbol-value var))))
5882 (set var (list (symbol-value var))))
5883 (when (not (listp (cdr articles)))
5884 (setq articles (list articles)))
eec82323
LMI
5885 (while articles
5886 (when (or (not (consp (setq article (pop articles))))
5887 (< (car article) min)
5888 (> (car article) max))
23f87bed
MB
5889 (set var (delq article (symbol-value var))))))
5890 ;; Adjust ranges (sloppily).
5891 ((eq mark-type 'range)
5892 (cond
5893 ((eq mark 'seen)
5894 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5895 ;; It should be (seen (NUM1 . NUM2)).
5896 (when (numberp (cddr marks))
5897 (setcdr marks (list (cdr marks))))
5898 (setq articles (cdr marks))
5899 (while (and articles
5900 (or (and (consp (car articles))
5901 (> min (cdar articles)))
5902 (and (numberp (car articles))
5903 (> min (car articles)))))
5904 (pop articles))
5905 (set var articles))))))))
eec82323
LMI
5906
5907(defun gnus-update-missing-marks (missing)
6748645f 5908 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5909 (when missing
23f87bed 5910 (let (var m)
eec82323 5911 ;; Go through all types.
23f87bed
MB
5912 (dolist (elem gnus-article-mark-lists)
5913 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5914 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5915 (when (symbol-value var)
5916 ;; This list has articles. So we delete all missing
5917 ;; articles from it.
5918 (setq m missing)
5919 (while m
5920 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5921
5922(defun gnus-update-marks ()
5923 "Enter the various lists of marked articles into the newsgroup info list."
5924 (let ((types gnus-article-mark-lists)
5925 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5926 type list newmarked symbol delta-marks)
eec82323 5927 (when info
16409b0b 5928 ;; Add all marks lists to the list of marks lists.
eec82323 5929 (while (setq type (pop types))
16409b0b
GM
5930 (setq list (symbol-value
5931 (setq symbol
23f87bed 5932 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5933
16409b0b 5934 (when list
eec82323
LMI
5935 ;; Get rid of the entries of the articles that have the
5936 ;; default score.
5937 (when (and (eq (cdr type) 'score)
5938 gnus-save-score
5939 list)
5940 (let* ((arts list)
5941 (prev (cons nil list))
5942 (all prev))
5943 (while arts
5944 (if (or (not (consp (car arts)))
5945 (= (cdar arts) gnus-summary-default-score))
5946 (setcdr prev (cdr arts))
5947 (setq prev arts))
5948 (setq arts (cdr arts)))
16409b0b
GM
5949 (setq list (cdr all)))))
5950
23f87bed
MB
5951 (when (eq (cdr type) 'seen)
5952 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5953
5954 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5955 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5956
23f87bed
MB
5957 (when (and (gnus-check-backend-function
5958 'request-set-mark gnus-newsgroup-name)
5959 (not (gnus-article-unpropagatable-p (cdr type))))
5960 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5961 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5962 (add (gnus-remove-from-range
5963 (gnus-copy-sequence list) old)))
5964 (when add
5965 (push (list add 'add (list (cdr type))) delta-marks))
5966 (when del
5967 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5968
16409b0b
GM
5969 (when list
5970 (push (cons (cdr type) list) newmarked)))
5971
5972 (when delta-marks
5973 (unless (gnus-check-group gnus-newsgroup-name)
5974 (error "Can't open server for %s" gnus-newsgroup-name))
5975 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5976
eec82323
LMI
5977 ;; Enter these new marks into the info of the group.
5978 (if (nthcdr 3 info)
5979 (setcar (nthcdr 3 info) newmarked)
5980 ;; Add the marks lists to the end of the info.
5981 (when newmarked
5982 (setcdr (nthcdr 2 info) (list newmarked))))
5983
5984 ;; Cut off the end of the info if there's nothing else there.
5985 (let ((i 5))
5986 (while (and (> i 2)
5987 (not (nth i info)))
5988 (when (nthcdr (decf i) info)
5989 (setcdr (nthcdr i info) nil)))))))
5990
5991(defun gnus-set-mode-line (where)
16409b0b 5992 "Set the mode line of the article or summary buffers.
eec82323
LMI
5993If WHERE is `summary', the summary mode line format will be used."
5994 ;; Is this mode line one we keep updated?
16409b0b
GM
5995 (when (and (memq where gnus-updated-mode-lines)
5996 (symbol-value
5997 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 5998 (let (mode-string)
c7a91ce1
SM
5999 ;; We evaluate this in the summary buffer since these
6000 ;; variables are buffer-local to that buffer.
6001 (with-current-buffer gnus-summary-buffer
6002 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6003 ;; below.
6004 (let* ((mformat (symbol-value
6005 (intern
6006 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6007 (gnus-tmp-group-name (gnus-mode-string-quote
6008 (gnus-group-decoded-name
6009 gnus-newsgroup-name)))
eec82323
LMI
6010 (gnus-tmp-article-number (or gnus-current-article 0))
6011 (gnus-tmp-unread gnus-newsgroup-unreads)
6012 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6013 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6014 (gnus-tmp-unread-and-unselected
6015 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6016 (zerop gnus-tmp-unselected))
6017 "")
6018 ((zerop gnus-tmp-unselected)
6019 (format "{%d more}" gnus-tmp-unread-and-unticked))
6020 (t (format "{%d(+%d) more}"
6021 gnus-tmp-unread-and-unticked
6022 gnus-tmp-unselected))))
6023 (gnus-tmp-subject
6024 (if (and gnus-current-headers
6025 (vectorp gnus-current-headers))
6026 (gnus-mode-string-quote
6027 (mail-header-subject gnus-current-headers))
6028 ""))
6029 bufname-length max-len
23f87bed 6030 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6031 (setq mode-string (eval mformat))
6032 (setq bufname-length (if (string-match "%b" mode-string)
6033 (- (length
6034 (buffer-name
6035 (if (eq where 'summary)
6036 nil
6037 (get-buffer gnus-article-buffer))))
6038 2)
6039 0))
6040 (setq max-len (max 4 (if gnus-mode-non-string-length
6041 (- (window-width)
6042 gnus-mode-non-string-length
6043 bufname-length)
6044 (length mode-string))))
6045 ;; We might have to chop a bit of the string off...
6046 (when (> (length mode-string) max-len)
6047 (setq mode-string
16409b0b 6048 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
6049 "...")))
6050 ;; Pad the mode string a bit.
6051 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
6052 ;; Update the mode line.
6053 (setq mode-line-buffer-identification
6054 (gnus-mode-line-buffer-identification (list mode-string)))
6055 (set-buffer-modified-p t))))
6056
6057(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6058 "Go through the HEADERS list and add all Xrefs to a hash table.
6059The resulting hash table is returned, or nil if no Xrefs were found."
6060 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6061 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6062 (xref-hashtb (gnus-make-hashtable))
6063 start group entry number xrefs header)
6064 (while headers
6065 (setq header (pop headers))
6066 (when (and (setq xrefs (mail-header-xref header))
6067 (not (memq (setq number (mail-header-number header))
6068 unreads)))
6069 (setq start 0)
6070 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6071 (setq start (match-end 0))
6072 (setq group (if prefix
6073 (concat prefix (substring xrefs (match-beginning 1)
6074 (match-end 1)))
6075 (substring xrefs (match-beginning 1) (match-end 1))))
6076 (setq number
e9bd5782 6077 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6078 (match-end 2))))
6079 (if (setq entry (gnus-gethash group xref-hashtb))
6080 (setcdr entry (cons number (cdr entry)))
6081 (gnus-sethash group (cons number nil) xref-hashtb)))))
6082 (and start xref-hashtb)))
6083
6084(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6085 "Look through all the headers and mark the Xrefs as read."
6086 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6087 name info xref-hashtb idlist method nth4)
eec82323
LMI
6088 (save-excursion
6089 (set-buffer gnus-group-buffer)
6090 (when (setq xref-hashtb
6091 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6092 (mapatoms
6093 (lambda (group)
6094 (unless (string= from-newsgroup (setq name (symbol-name group)))
6095 (setq idlist (symbol-value group))
6096 ;; Dead groups are not updated.
6097 (and (prog1
01c52d31 6098 (setq info (gnus-get-info name))
eec82323
LMI
6099 (when (stringp (setq nth4 (gnus-info-method info)))
6100 (setq nth4 (gnus-server-to-method nth4))))
6101 ;; Only do the xrefs if the group has the same
6102 ;; select method as the group we have just read.
6103 (or (gnus-methods-equal-p
6104 nth4 (gnus-find-method-for-group from-newsgroup))
6105 virtual
6106 (equal nth4 (setq method (gnus-find-method-for-group
6107 from-newsgroup)))
6108 (and (equal (car nth4) (car method))
6109 (equal (nth 1 nth4) (nth 1 method))))
6110 gnus-use-cross-reference
6111 (or (not (eq gnus-use-cross-reference t))
6112 virtual
6113 ;; Only do cross-references on subscribed
6114 ;; groups, if that is what is wanted.
6115 (<= (gnus-info-level info) gnus-level-subscribed))
6116 (gnus-group-make-articles-read name idlist))))
6117 xref-hashtb)))))
6118
6748645f 6119(defun gnus-compute-read-articles (group articles)
01c52d31 6120 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6121 (info (nth 2 entry))
6122 (active (gnus-active group))
6123 ninfo)
6124 (when entry
16409b0b 6125 ;; First peel off all invalid article numbers.
6748645f
LMI
6126 (when active
6127 (let ((ids articles)
6128 id first)
6129 (while (setq id (pop ids))
6130 (when (and first (> id (cdr active)))
6131 ;; We'll end up in this situation in one particular
6132 ;; obscure situation. If you re-scan a group and get
6133 ;; a new article that is cross-posted to a different
6134 ;; group that has not been re-scanned, you might get
6135 ;; crossposted article that has a higher number than
6136 ;; Gnus believes possible. So we re-activate this
6137 ;; group as well. This might mean doing the
6138 ;; crossposting thingy will *increase* the number
6139 ;; of articles in some groups. Tsk, tsk.
6140 (setq active (or (gnus-activate-group group) active)))
6141 (when (or (> id (cdr active))
6142 (< id (car active)))
6143 (setq articles (delq id articles))))))
6144 ;; If the read list is nil, we init it.
6145 (if (and active
6146 (null (gnus-info-read info))
6147 (> (car active) 1))
6148 (setq ninfo (cons 1 (1- (car active))))
6149 (setq ninfo (gnus-info-read info)))
6150 ;; Then we add the read articles to the range.
6151 (gnus-add-to-range
6152 ninfo (setq articles (sort articles '<))))))
6153
eec82323
LMI
6154(defun gnus-group-make-articles-read (group articles)
6155 "Update the info of GROUP to say that ARTICLES are read."
6156 (let* ((num 0)
01c52d31 6157 (entry (gnus-group-entry group))
eec82323
LMI
6158 (info (nth 2 entry))
6159 (active (gnus-active group))
6160 range)
6748645f
LMI
6161 (when entry
6162 (setq range (gnus-compute-read-articles group articles))
01c52d31 6163 (with-current-buffer gnus-group-buffer
6748645f
LMI
6164 (gnus-undo-register
6165 `(progn
6166 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6167 (gnus-info-set-read ',info ',(gnus-info-read info))
6168 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6169 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6170 (gnus-group-update-group ,group t))))
6171 ;; Add the read articles to the range.
6172 (gnus-info-set-read info range)
23f87bed 6173 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6174 ;; Then we have to re-compute how many unread
6175 ;; articles there are in this group.
6176 (when active
6177 (cond
6178 ((not range)
6179 (setq num (- (1+ (cdr active)) (car active))))
6180 ((not (listp (cdr range)))
6181 (setq num (- (cdr active) (- (1+ (cdr range))
6182 (car range)))))
6183 (t
6184 (while range
6185 (if (numberp (car range))
6186 (setq num (1+ num))
6187 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6188 (setq range (cdr range)))
6189 (setq num (- (cdr active) num))))
6190 ;; Update the number of unread articles.
6191 (setcar entry num)
6192 ;; Update the group buffer.
23f87bed
MB
6193 (unless (gnus-ephemeral-group-p group)
6194 (gnus-group-update-group group t))))))
eec82323 6195
eec82323
LMI
6196(defvar gnus-newsgroup-none-id 0)
6197
6198(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6199 (let ((cur nntp-server-buffer)
6200 (dependencies
6201 (or dependencies
01c52d31
MB
6202 (with-current-buffer gnus-summary-buffer
6203 gnus-newsgroup-dependencies)))
6204 headers id end ref number
16409b0b
GM
6205 (mail-parse-charset gnus-newsgroup-charset)
6206 (mail-parse-ignored-charsets
c7a91ce1
SM
6207 (save-current-buffer (condition-case nil
6208 (set-buffer gnus-summary-buffer)
6209 (error))
6210 gnus-newsgroup-ignored-charsets)))
6211 (with-current-buffer nntp-server-buffer
eec82323
LMI
6212 ;; Translate all TAB characters into SPACE characters.
6213 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6214 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6215 (ietf-drums-unfold-fws)
6748645f 6216 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6217 (let ((case-fold-search t)
6748645f 6218 in-reply-to header p lines chars)
eec82323 6219 (goto-char (point-min))
01ccbb85 6220 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6221 ;; do not begin with 2 or 3.
6222 (while (re-search-forward "^[23][0-9]+ " nil t)
6223 (setq id nil
6224 ref nil)
6225 ;; This implementation of this function, with nine
6226 ;; search-forwards instead of the one re-search-forward and
6227 ;; a case (which basically was the old function) is actually
01ccbb85 6228 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6229 ;; can't have everything, I guess. Speed and elegance
6230 ;; doesn't always go hand in hand.
6231 (setq
6232 header
6233 (vector
6234 ;; Number.
6235 (prog1
01c52d31 6236 (setq number (read cur))
eec82323
LMI
6237 (end-of-line)
6238 (setq p (point))
6239 (narrow-to-region (point)
6240 (or (and (search-forward "\n.\n" nil t)
6241 (- (point) 2))
6242 (point))))
6243 ;; Subject.
6244 (progn
6245 (goto-char p)
23f87bed 6246 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6247 (funcall gnus-decode-encoded-word-function
6248 (nnheader-header-value))
2bd3dcae 6249 "(none)"))
eec82323
LMI
6250 ;; From.
6251 (progn
6252 (goto-char p)
23f87bed 6253 (if (search-forward "\nfrom:" nil t)
343d6628 6254 (funcall gnus-decode-encoded-address-function
16409b0b 6255 (nnheader-header-value))
2bd3dcae 6256 "(nobody)"))
eec82323
LMI
6257 ;; Date.
6258 (progn
6259 (goto-char p)
23f87bed 6260 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6261 (nnheader-header-value) ""))
6262 ;; Message-ID.
6263 (progn
6264 (goto-char p)
6748645f
LMI
6265 (setq id (if (re-search-forward
6266 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6267 ;; We do it this way to make sure the Message-ID
6268 ;; is (somewhat) syntactically valid.
6269 (buffer-substring (match-beginning 1)
6270 (match-end 1))
eec82323
LMI
6271 ;; If there was no message-id, we just fake one
6272 ;; to make subsequent routines simpler.
01c52d31 6273 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6274 ;; References.
6275 (progn
6276 (goto-char p)
23f87bed 6277 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6278 (progn
6279 (setq end (point))
6280 (prog1
6281 (nnheader-header-value)
6282 (setq ref
6283 (buffer-substring
6284 (progn
6285 (end-of-line)
6286 (search-backward ">" end t)
6287 (1+ (point)))
6288 (progn
6289 (search-backward "<" end t)
6290 (point))))))
6291 ;; Get the references from the in-reply-to header if there
6292 ;; were no references and the in-reply-to header looks
6293 ;; promising.
23f87bed 6294 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6295 (setq in-reply-to (nnheader-header-value))
6296 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6297 (let (ref2)
6298 (setq ref (substring in-reply-to (match-beginning 0)
6299 (match-end 0)))
6300 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6301 (setq ref2 (substring in-reply-to (match-beginning 0)
6302 (match-end 0)))
6303 (when (> (length ref2) (length ref))
6304 (setq ref ref2)))
6305 ref)
eec82323
LMI
6306 (setq ref nil))))
6307 ;; Chars.
6748645f
LMI
6308 (progn
6309 (goto-char p)
6310 (if (search-forward "\nchars: " nil t)
6311 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6312 chars -1)
6313 -1))
eec82323
LMI
6314 ;; Lines.
6315 (progn
6316 (goto-char p)
6317 (if (search-forward "\nlines: " nil t)
a8151ef7 6318 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6319 lines -1)
6320 -1))
eec82323
LMI
6321 ;; Xref.
6322 (progn
6323 (goto-char p)
23f87bed 6324 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6325 (nnheader-header-value)))
6326 ;; Extra.
6327 (when gnus-extra-headers
6328 (let ((extra gnus-extra-headers)
6329 out)
6330 (while extra
6331 (goto-char p)
6332 (when (search-forward
23f87bed 6333 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6334 (push (cons (car extra) (nnheader-header-value))
6335 out))
6336 (pop extra))
6337 out))))
eec82323
LMI
6338 (when (equal id ref)
6339 (setq ref nil))
6748645f
LMI
6340
6341 (when gnus-alter-header-function
6342 (funcall gnus-alter-header-function header)
6343 (setq id (mail-header-id header)
6344 ref (gnus-parent-id (mail-header-references header))))
6345
6346 (when (setq header
6347 (gnus-dependencies-add-header
6348 header dependencies force-new))
eec82323
LMI
6349 (push header headers))
6350 (goto-char (point-max))
6351 (widen))
6352 (nreverse headers)))))
6353
eec82323
LMI
6354;; Goes through the xover lines and returns a list of vectors
6355(defun gnus-get-newsgroup-headers-xover (sequence &optional
6356 force-new dependencies
6357 group also-fetch-heads)
16409b0b
GM
6358 "Parse the news overview data in the server buffer.
6359Return a list of headers that match SEQUENCE (see
6360`nntp-retrieve-headers')."
eec82323
LMI
6361 ;; Get the Xref when the users reads the articles since most/some
6362 ;; NNTP servers do not include Xrefs when using XOVER.
6363 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6364 (let ((mail-parse-charset gnus-newsgroup-charset)
6365 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6366 (cur nntp-server-buffer)
eec82323 6367 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6368 (allp (cond
6369 ((eq gnus-read-all-available-headers t)
6370 t)
14e6dc54
MB
6371 ((and (stringp gnus-read-all-available-headers)
6372 group)
23f87bed
MB
6373 (string-match gnus-read-all-available-headers group))
6374 (t
6375 nil)))
eec82323 6376 number headers header)
c7a91ce1 6377 (with-current-buffer nntp-server-buffer
16409b0b 6378 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6379 ;; Allow the user to mangle the headers before parsing them.
6748645f 6380 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6381 (goto-char (point-min))
23f87bed
MB
6382 (gnus-parse-without-error
6383 (while (and (or sequence allp)
6384 (not (eobp)))
6385 (setq number (read cur))
6386 (when (not allp)
6387 (while (and sequence
6388 (< (car sequence) number))
6389 (setq sequence (cdr sequence))))
6390 (when (and (or allp
6391 (and sequence
6392 (eq number (car sequence))))
6393 (progn
6394 (setq sequence (cdr sequence))
6395 (setq header (inline
6396 (gnus-nov-parse-line
6397 number dependencies force-new)))))
6398 (push header headers))
6399 (forward-line 1)))
eec82323
LMI
6400 ;; A common bug in inn is that if you have posted an article and
6401 ;; then retrieves the active file, it will answer correctly --
6402 ;; the new article is included. However, a NOV entry for the
6403 ;; article may not have been generated yet, so this may fail.
6404 ;; We work around this problem by retrieving the last few
6405 ;; headers using HEAD.
6406 (if (or (not also-fetch-heads)
6407 (not sequence))
6408 ;; We (probably) got all the headers.
6409 (nreverse headers)
6410 (let ((gnus-nov-is-evil t))
6411 (nconc
6412 (nreverse headers)
23f87bed 6413 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6414 (gnus-get-newsgroup-headers))))))))
6415
6416(defun gnus-article-get-xrefs ()
6417 "Fill in the Xref value in `gnus-current-headers', if necessary.
6418This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6419 (let ((headers (with-current-buffer gnus-summary-buffer
6420 gnus-current-headers)))
eec82323
LMI
6421 (or (not gnus-use-cross-reference)
6422 (not headers)
6423 (and (mail-header-xref headers)
6424 (not (string= (mail-header-xref headers) "")))
6425 (let ((case-fold-search t)
6426 xref)
6427 (save-restriction
6428 (nnheader-narrow-to-headers)
6429 (goto-char (point-min))
16409b0b
GM
6430 (when (or (and (not (eobp))
6431 (eq (downcase (char-after)) ?x)
eec82323
LMI
6432 (looking-at "Xref:"))
6433 (search-forward "\nXref:" nil t))
6434 (goto-char (1+ (match-end 0)))
01c52d31 6435 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6436 (mail-header-set-xref headers xref)))))))
6437
6438(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6439 "Find article ID and insert the summary line for that article.
6440OLD-HEADER can either be a header or a line number to insert
6441the subject line on."
6442 (let* ((line (and (numberp old-header) old-header))
6443 (old-header (and (vectorp old-header) old-header))
6444 (header (cond ((and old-header use-old-header)
16409b0b
GM
6445 old-header)
6446 ((and (numberp id)
6447 (gnus-number-to-header id))
6448 (gnus-number-to-header id))
6449 (t
6450 (gnus-read-header id))))
6451 (number (and (numberp id) id))
6452 d)
eec82323
LMI
6453 (when header
6454 ;; Rebuild the thread that this article is part of and go to the
6455 ;; article we have fetched.
6456 (when (and (not gnus-show-threads)
6457 old-header)
6748645f
LMI
6458 (when (and number
6459 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6460 (goto-char (gnus-data-pos d))
6461 (gnus-data-remove
6462 number
01c52d31 6463 (- (point-at-bol)
eec82323 6464 (prog1
01c52d31 6465 (1+ (point-at-eol))
eec82323 6466 (gnus-delete-line))))))
23f87bed
MB
6467 ;; Remove list identifiers from subject.
6468 (when gnus-list-identifiers
6469 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6470 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6471 (when old-header
6472 (mail-header-set-number header (mail-header-number old-header)))
6473 (setq gnus-newsgroup-sparse
6474 (delq (setq number (mail-header-number header))
6475 gnus-newsgroup-sparse))
6476 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6477 (push number gnus-newsgroup-limit)
6478 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6479 (gnus-summary-goto-subject number nil t))
6480 (when (and (numberp number)
6481 (> number 0))
6482 ;; We have to update the boundaries even if we can't fetch the
6483 ;; article if ID is a number -- so that the next `P' or `N'
6484 ;; command will fetch the previous (or next) article even
6485 ;; if the one we tried to fetch this time has been canceled.
6486 (when (> number gnus-newsgroup-end)
6487 (setq gnus-newsgroup-end number))
6488 (when (< number gnus-newsgroup-begin)
6489 (setq gnus-newsgroup-begin number))
6490 (setq gnus-newsgroup-unselected
6491 (delq number gnus-newsgroup-unselected)))
6492 ;; Report back a success?
6493 (and header (mail-header-number header))))
6494
6495;;; Process/prefix in the summary buffer
6496
6497(defun gnus-summary-work-articles (n)
6748645f
LMI
6498 "Return a list of articles to be worked upon.
6499The prefix argument, the list of process marked articles, and the
6500current article will be taken into consideration."
c7a91ce1 6501 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6502 (cond
6503 (n
6504 ;; A numerical prefix has been given.
6505 (setq n (prefix-numeric-value n))
6506 (let ((backward (< n 0))
6507 (n (abs (prefix-numeric-value n)))
6508 articles article)
6509 (save-excursion
6510 (while
6511 (and (> n 0)
6512 (push (setq article (gnus-summary-article-number))
6513 articles)
6514 (if backward
6515 (gnus-summary-find-prev nil article)
6516 (gnus-summary-find-next nil article)))
6517 (decf n)))
6518 (nreverse articles)))
6519 ((and (gnus-region-active-p) (mark))
6520 (message "region active")
6521 ;; Work on the region between point and mark.
6522 (let ((max (max (point) (mark)))
6523 articles article)
6524 (save-excursion
7dafe00b 6525 (goto-char (min (point) (mark)))
6748645f
LMI
6526 (while
6527 (and
6528 (push (setq article (gnus-summary-article-number)) articles)
6529 (gnus-summary-find-next nil article)
6530 (< (point) max)))
6531 (nreverse articles))))
6532 (gnus-newsgroup-processable
6533 ;; There are process-marked articles present.
6534 ;; Save current state.
6535 (gnus-summary-save-process-mark)
6536 ;; Return the list.
6537 (reverse gnus-newsgroup-processable))
6538 (t
6539 ;; Just return the current article.
6540 (list (gnus-summary-article-number))))))
6541
6542(defmacro gnus-summary-iterate (arg &rest forms)
6543 "Iterate over the process/prefixed articles and do FORMS.
6544ARG is the interactive prefix given to the command. FORMS will be
6545executed with point over the summary line of the articles."
6546 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6547 `(let ((,articles (gnus-summary-work-articles ,arg)))
6548 (while ,articles
6549 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6550 ,@forms
6551 (pop ,articles)))))
6748645f
LMI
6552
6553(put 'gnus-summary-iterate 'lisp-indent-function 1)
6554(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6555
6556(defun gnus-summary-save-process-mark ()
6557 "Push the current set of process marked articles on the stack."
6558 (interactive)
6559 (push (copy-sequence gnus-newsgroup-processable)
6560 gnus-newsgroup-process-stack))
6561
6562(defun gnus-summary-kill-process-mark ()
6563 "Push the current set of process marked articles on the stack and unmark."
6564 (interactive)
6565 (gnus-summary-save-process-mark)
6566 (gnus-summary-unmark-all-processable))
6567
6568(defun gnus-summary-yank-process-mark ()
6569 "Pop the last process mark state off the stack and restore it."
6570 (interactive)
6571 (unless gnus-newsgroup-process-stack
6572 (error "Empty mark stack"))
6573 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6574
6575(defun gnus-summary-process-mark-set (set)
6576 "Make SET into the current process marked articles."
6577 (gnus-summary-unmark-all-processable)
01c52d31 6578 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6579
6580;;; Searching and stuff
6581
6582(defun gnus-summary-search-group (&optional backward use-level)
6583 "Search for next unread newsgroup.
6584If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6585 (with-current-buffer gnus-group-buffer
eec82323
LMI
6586 (when (gnus-group-search-forward
6587 backward nil (if use-level (gnus-group-group-level) nil))
6588 (gnus-group-group-name))))
6589
6590(defun gnus-summary-best-group (&optional exclude-group)
6591 "Find the name of the best unread group.
6592If EXCLUDE-GROUP, do not go to this group."
01c52d31 6593 (with-current-buffer gnus-group-buffer
eec82323
LMI
6594 (save-excursion
6595 (gnus-group-best-unread-group exclude-group))))
6596
23f87bed
MB
6597(defun gnus-summary-find-next (&optional unread article backward)
6598 (if backward
6599 (gnus-summary-find-prev unread article)
eec82323
LMI
6600 (let* ((dummy (gnus-summary-article-intangible-p))
6601 (article (or article (gnus-summary-article-number)))
23f87bed 6602 (data (gnus-data-find-list article))
eec82323
LMI
6603 result)
6604 (when (and (not dummy)
6605 (or (not gnus-summary-check-current)
6606 (not unread)
23f87bed
MB
6607 (not (gnus-data-unread-p (car data)))))
6608 (setq data (cdr data)))
eec82323
LMI
6609 (when (setq result
6610 (if unread
6611 (progn
23f87bed
MB
6612 (while data
6613 (unless (memq (gnus-data-number (car data))
6614 (cond
6615 ((eq gnus-auto-goto-ignores
6616 'always-undownloaded)
6617 gnus-newsgroup-undownloaded)
6618 (gnus-plugged
6619 nil)
6620 ((eq gnus-auto-goto-ignores
6621 'unfetched)
6622 gnus-newsgroup-unfetched)
6623 ((eq gnus-auto-goto-ignores
6624 'undownloaded)
6625 gnus-newsgroup-undownloaded)))
6626 (when (gnus-data-unread-p (car data))
6627 (setq result (car data)
6628 data nil)))
6629 (setq data (cdr data)))
eec82323 6630 result)
23f87bed 6631 (car data)))
eec82323
LMI
6632 (goto-char (gnus-data-pos result))
6633 (gnus-data-number result)))))
6634
6635(defun gnus-summary-find-prev (&optional unread article)
6636 (let* ((eobp (eobp))
6637 (article (or article (gnus-summary-article-number)))
23f87bed 6638 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6639 result)
6640 (when (and (not eobp)
6641 (or (not gnus-summary-check-current)
6642 (not unread)
23f87bed
MB
6643 (not (gnus-data-unread-p (car data)))))
6644 (setq data (cdr data)))
eec82323
LMI
6645 (when (setq result
6646 (if unread
6647 (progn
23f87bed
MB
6648 (while data
6649 (unless (memq (gnus-data-number (car data))
6650 (cond
6651 ((eq gnus-auto-goto-ignores
6652 'always-undownloaded)
6653 gnus-newsgroup-undownloaded)
6654 (gnus-plugged
6655 nil)
6656 ((eq gnus-auto-goto-ignores
6657 'unfetched)
6658 gnus-newsgroup-unfetched)
6659 ((eq gnus-auto-goto-ignores
6660 'undownloaded)
6661 gnus-newsgroup-undownloaded)))
6662 (when (gnus-data-unread-p (car data))
6663 (setq result (car data)
6664 data nil)))
6665 (setq data (cdr data)))
eec82323 6666 result)
23f87bed 6667 (car data)))
eec82323
LMI
6668 (goto-char (gnus-data-pos result))
6669 (gnus-data-number result))))
6670
6671(defun gnus-summary-find-subject (subject &optional unread backward article)
6672 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6673 (article (or article (gnus-summary-article-number)))
6674 (articles (gnus-data-list backward))
6675 (arts (gnus-data-find-list article articles))
6676 result)
6677 (when (or (not gnus-summary-check-current)
6678 (not unread)
6679 (not (gnus-data-unread-p (car arts))))
6680 (setq arts (cdr arts)))
6681 (while arts
6682 (and (or (not unread)
6683 (gnus-data-unread-p (car arts)))
6684 (vectorp (gnus-data-header (car arts)))
6685 (gnus-subject-equal
6686 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6687 (setq result (car arts)
6688 arts nil))
6689 (setq arts (cdr arts)))
6690 (and result
6691 (goto-char (gnus-data-pos result))
6692 (gnus-data-number result))))
6693
6694(defun gnus-summary-search-forward (&optional unread subject backward)
6695 "Search forward for an article.
6696If UNREAD, look for unread articles. If SUBJECT, look for
6697articles with that subject. If BACKWARD, search backward instead."
6698 (cond (subject (gnus-summary-find-subject subject unread backward))
6699 (backward (gnus-summary-find-prev unread))
6700 (t (gnus-summary-find-next unread))))
6701
6702(defun gnus-recenter (&optional n)
6703 "Center point in window and redisplay frame.
6704Also do horizontal recentering."
6705 (interactive "P")
6706 (when (and gnus-auto-center-summary
6707 (not (eq gnus-auto-center-summary 'vertical)))
6708 (gnus-horizontal-recenter))
6709 (recenter n))
6710
6711(defun gnus-summary-recenter ()
6712 "Center point in the summary window.
6713If `gnus-auto-center-summary' is nil, or the article buffer isn't
6714displayed, no centering will be performed."
6715 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6716 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6717 (interactive)
23f87bed
MB
6718 ;; The user has to want it.
6719 (when gnus-auto-center-summary
6720 (let* ((top (cond ((< (window-height) 4) 0)
6721 ((< (window-height) 7) 1)
6722 (t (if (numberp gnus-auto-center-summary)
6723 gnus-auto-center-summary
01c52d31 6724 (/ (1- (window-height)) 2)))))
23f87bed
MB
6725 (height (1- (window-height)))
6726 (bottom (save-excursion (goto-char (point-max))
6727 (forward-line (- height))
6728 (point)))
6729 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6730 (when (get-buffer-window gnus-article-buffer)
6731 ;; Only do recentering when the article buffer is displayed,
6732 ;; Set the window start to either `bottom', which is the biggest
6733 ;; possible valid number, or the second line from the top,
6734 ;; whichever is the least.
db7ebd73
MB
6735 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
6736 (if (> bottom top-pos)
6737 ;; Keep the second line from the top visible
01c52d31 6738 (set-window-start window top-pos)
db7ebd73
MB
6739 ;; Try to keep the bottom line visible; if it's partially
6740 ;; obscured, either scroll one more line to make it fully
6741 ;; visible, or revert to using TOP-POS.
6742 (save-excursion
6743 (goto-char (point-max))
6744 (forward-line -1)
6745 (let ((last-line-start (point)))
6746 (goto-char bottom)
6747 (set-window-start window (point) t)
6748 (when (not (pos-visible-in-window-p last-line-start window))
6749 (forward-line 1)
6750 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6751 ;; Do horizontal recentering while we're at it.
6752 (when (and (get-buffer-window (current-buffer) t)
6753 (not (eq gnus-auto-center-summary 'vertical)))
6754 (let ((selected (selected-window)))
6755 (select-window (get-buffer-window (current-buffer) t))
6756 (gnus-summary-position-point)
6757 (gnus-horizontal-recenter)
6758 (select-window selected))))))
6759
6760(defun gnus-summary-jump-to-group (newsgroup)
6761 "Move point to NEWSGROUP in group mode buffer."
6762 ;; Keep update point of group mode buffer if visible.
6763 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6764 (save-window-excursion
6765 ;; Take care of tree window mode.
6766 (when (get-buffer-window gnus-group-buffer)
6767 (pop-to-buffer gnus-group-buffer))
6768 (gnus-group-jump-to-group newsgroup))
6769 (save-excursion
6770 ;; Take care of tree window mode.
c7a91ce1 6771 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6772 (pop-to-buffer gnus-group-buffer)
6773 (set-buffer gnus-group-buffer))
6774 (gnus-group-jump-to-group newsgroup))))
6775
6776;; This function returns a list of article numbers based on the
6777;; difference between the ranges of read articles in this group and
6778;; the range of active articles.
6779(defun gnus-list-of-unread-articles (group)
6780 (let* ((read (gnus-info-read (gnus-get-info group)))
6781 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6782 (last (or (cdr active)
6783 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6784 (bottom (if gnus-newsgroup-maximum-articles
6785 (max (car active)
6786 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6787 (car active)))
eec82323
LMI
6788 first nlast unread)
6789 ;; If none are read, then all are unread.
6790 (if (not read)
11abff8e 6791 (setq first bottom)
eec82323
LMI
6792 ;; If the range of read articles is a single range, then the
6793 ;; first unread article is the article after the last read
6794 ;; article. Sounds logical, doesn't it?
16409b0b 6795 (if (and (not (listp (cdr read)))
11abff8e 6796 (or (< (car read) bottom)
16409b0b
GM
6797 (progn (setq read (list read))
6798 nil)))
11abff8e 6799 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6800 ;; `read' is a list of ranges.
6801 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6802 (caar read)))
6803 1)
11abff8e 6804 (setq first bottom))
eec82323
LMI
6805 (while read
6806 (when first
6807 (while (< first nlast)
54506618
MB
6808 (setq unread (cons first unread)
6809 first (1+ first))))
eec82323
LMI
6810 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6811 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6812 (setq read (cdr read)))))
6813 ;; And add the last unread articles.
6814 (while (<= first last)
54506618
MB
6815 (setq unread (cons first unread)
6816 first (1+ first)))
eec82323 6817 ;; Return the list of unread articles.
6748645f 6818 (delq 0 (nreverse unread))))
eec82323
LMI
6819
6820(defun gnus-list-of-read-articles (group)
6821 "Return a list of unread, unticked and non-dormant articles."
6822 (let* ((info (gnus-get-info group))
6823 (marked (gnus-info-marks info))
6824 (active (gnus-active group)))
6825 (and info active
23f87bed
MB
6826 (gnus-list-range-difference
6827 (gnus-list-range-difference
6828 (gnus-sorted-complement
11abff8e 6829 (gnus-uncompress-range
4b70e299 6830 (if gnus-newsgroup-maximum-articles
11abff8e 6831 (cons (max (car active)
4b70e299
MB
6832 (- (cdr active)
6833 gnus-newsgroup-maximum-articles
6834 -1))
11abff8e
MB
6835 (cdr active))
6836 active))
23f87bed
MB
6837 (gnus-list-of-unread-articles group))
6838 (cdr (assq 'dormant marked)))
6839 (cdr (assq 'tick marked))))))
eec82323 6840
54506618
MB
6841;; This function returns a sequence of article numbers based on the
6842;; difference between the ranges of read articles in this group and
6843;; the range of active articles.
6844(defun gnus-sequence-of-unread-articles (group)
6845 (let* ((read (gnus-info-read (gnus-get-info group)))
6846 (active (or (gnus-active group) (gnus-activate-group group)))
6847 (last (cdr active))
4b70e299
MB
6848 (bottom (if gnus-newsgroup-maximum-articles
6849 (max (car active)
6850 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6851 (car active)))
54506618
MB
6852 first nlast unread)
6853 ;; If none are read, then all are unread.
6854 (if (not read)
11abff8e 6855 (setq first bottom)
54506618
MB
6856 ;; If the range of read articles is a single range, then the
6857 ;; first unread article is the article after the last read
6858 ;; article. Sounds logical, doesn't it?
6859 (if (and (not (listp (cdr read)))
11abff8e 6860 (or (< (car read) bottom)
54506618
MB
6861 (progn (setq read (list read))
6862 nil)))
11abff8e 6863 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6864 ;; `read' is a list of ranges.
6865 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6866 (caar read)))
6867 1)
11abff8e 6868 (setq first bottom))
54506618
MB
6869 (while read
6870 (when first
6871 (push (cons first nlast) unread))
6872 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6873 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6874 (setq read (cdr read)))))
6875 ;; And add the last unread articles.
ba0226dd
MB
6876 (cond ((not (and first last))
6877 nil)
6878 ((< first last)
6879 (push (cons first last) unread))
6880 ((= first last)
6881 (push first unread)))
54506618
MB
6882 ;; Return the sequence of unread articles.
6883 (delq 0 (nreverse unread))))
6884
eec82323
LMI
6885;; Various summary commands
6886
6748645f
LMI
6887(defun gnus-summary-select-article-buffer ()
6888 "Reconfigure windows to show article buffer."
6889 (interactive)
6890 (if (not (gnus-buffer-live-p gnus-article-buffer))
6891 (error "There is no article buffer for this summary buffer")
6892 (gnus-configure-windows 'article)
6893 (select-window (get-buffer-window gnus-article-buffer))))
6894
eec82323
LMI
6895(defun gnus-summary-universal-argument (arg)
6896 "Perform any operation on all articles that are process/prefixed."
6897 (interactive "P")
eec82323
LMI
6898 (let ((articles (gnus-summary-work-articles arg))
6899 func article)
6900 (if (eq
6901 (setq
6902 func
6903 (key-binding
6904 (read-key-sequence
6905 (substitute-command-keys
16409b0b 6906 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6907 'undefined)
6908 (gnus-error 1 "Undefined key")
6909 (save-excursion
6910 (while articles
6911 (gnus-summary-goto-subject (setq article (pop articles)))
6912 (let (gnus-newsgroup-processable)
6913 (command-execute func))
6914 (gnus-summary-remove-process-mark article)))))
6915 (gnus-summary-position-point))
6916
6917(defun gnus-summary-toggle-truncation (&optional arg)
6918 "Toggle truncation of summary lines.
23f87bed 6919With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6920 (interactive "P")
6921 (setq truncate-lines
6922 (if (null arg) (not truncate-lines)
6923 (> (prefix-numeric-value arg) 0)))
6924 (redraw-display))
6925
23f87bed
MB
6926(defun gnus-summary-find-for-reselect ()
6927 "Return the number of an article to stay on across a reselect.
6928The current article is considered, then following articles, then previous
6929articles. An article is sought which is not cancelled and isn't a temporary
6930insertion from another group. If there's no such then return a dummy 0."
6931 (let (found)
6932 (dolist (rev '(nil t))
6933 (unless found ; don't demand the reverse list if we don't need it
6934 (let ((data (gnus-data-find-list
6935 (gnus-summary-article-number) (gnus-data-list rev))))
6936 (while (and data (not found))
6937 (if (and (< 0 (gnus-data-number (car data)))
6938 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6939 (setq found (gnus-data-number (car data))))
6940 (setq data (cdr data))))))
6941 (or found 0)))
6942
eec82323
LMI
6943(defun gnus-summary-reselect-current-group (&optional all rescan)
6944 "Exit and then reselect the current newsgroup.
6945The prefix argument ALL means to select all articles."
6946 (interactive "P")
eec82323
LMI
6947 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6948 (error "Ephemeral groups can't be reselected"))
23f87bed 6949 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6950 (group gnus-newsgroup-name))
6951 (setq gnus-newsgroup-begin nil)
23f87bed 6952 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6953 ;; We have to adjust the point of group mode buffer because
6954 ;; point was moved to the next unread newsgroup by exiting.
6955 (gnus-summary-jump-to-group group)
6956 (when rescan
6957 (save-excursion
6958 (gnus-group-get-new-news-this-group 1)))
6959 (gnus-group-read-group all t)
6960 (gnus-summary-goto-subject current-subject nil t)))
6961
6962(defun gnus-summary-rescan-group (&optional all)
6963 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6964 (interactive "P")
6965 (gnus-summary-reselect-current-group all t))
6966
6967(defun gnus-summary-update-info (&optional non-destructive)
6968 (save-excursion
6969 (let ((group gnus-newsgroup-name))
6748645f
LMI
6970 (when group
6971 (when gnus-newsgroup-kill-headers
6972 (setq gnus-newsgroup-killed
6973 (gnus-compress-sequence
23f87bed
MB
6974 (gnus-sorted-union
6975 (gnus-list-range-intersection
6976 gnus-newsgroup-unselected gnus-newsgroup-killed)
6977 gnus-newsgroup-unreads)
6748645f
LMI
6978 t)))
6979 (unless (listp (cdr gnus-newsgroup-killed))
6980 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
6981 (let ((headers gnus-newsgroup-headers))
6982 ;; Set the new ranges of read articles.
01c52d31 6983 (with-current-buffer gnus-group-buffer
6748645f
LMI
6984 (gnus-undo-force-boundary))
6985 (gnus-update-read-articles
23f87bed
MB
6986 group (gnus-sorted-union
6987 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
6988 ;; Set the current article marks.
6989 (let ((gnus-newsgroup-scored
6990 (if (and (not gnus-save-score)
6991 (not non-destructive))
6992 nil
6993 gnus-newsgroup-scored)))
6994 (save-excursion
6995 (gnus-update-marks)))
6996 ;; Do the cross-ref thing.
6997 (when gnus-use-cross-reference
6998 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
6999 ;; Do not switch windows but change the buffer to work.
a8151ef7 7000 (set-buffer gnus-group-buffer)
6748645f
LMI
7001 (unless (gnus-ephemeral-group-p group)
7002 (gnus-group-update-group group)))))))
eec82323
LMI
7003
7004(defun gnus-summary-save-newsrc (&optional force)
7005 "Save the current number of read/marked articles in the dribble buffer.
7006The dribble buffer will then be saved.
7007If FORCE (the prefix), also save the .newsrc file(s)."
7008 (interactive "P")
7009 (gnus-summary-update-info t)
7010 (if force
7011 (gnus-save-newsrc-file)
7012 (gnus-dribble-save)))
7013
704f1663
GM
7014(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7015
23f87bed 7016(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7017 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7018`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7019 (interactive)
7020 (gnus-set-global-variables)
16409b0b 7021 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7022 (with-current-buffer gnus-article-buffer
16409b0b
GM
7023 (mm-destroy-parts gnus-article-mime-handles)
7024 ;; Set it to nil for safety reason.
7025 (setq gnus-article-mime-handle-alist nil)
7026 (setq gnus-article-mime-handles nil)))
eec82323 7027 (gnus-kill-save-kill-buffer)
6748645f 7028 (gnus-async-halt-prefetch)
eec82323
LMI
7029 (let* ((group gnus-newsgroup-name)
7030 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7031 (gnus-group-is-exiting-p t)
eec82323 7032 (mode major-mode)
23f87bed 7033 (group-point nil)
eec82323 7034 (buf (current-buffer)))
16409b0b
GM
7035 (unless quit-config
7036 ;; Do adaptive scoring, and possibly save score files.
7037 (when gnus-newsgroup-adaptive
7038 (gnus-score-adaptive))
7039 (when gnus-use-scoring
7040 (gnus-score-save)))
6748645f 7041 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7042 ;; If we have several article buffers, we kill them at exit.
7043 (unless gnus-single-article-buffer
01c52d31
MB
7044 (when (gnus-buffer-live-p gnus-article-buffer)
7045 (with-current-buffer gnus-article-buffer
7046 ;; Don't kill sticky article buffers
7047 (unless (eq major-mode 'gnus-sticky-article-mode)
7048 (gnus-kill-buffer gnus-article-buffer)
7049 (setq gnus-article-current nil))))
7050 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7051 (when gnus-use-cache
7052 (gnus-cache-possibly-remove-articles)
7053 (gnus-cache-save-buffers))
7054 (gnus-async-prefetch-remove-group group)
7055 (when gnus-suppress-duplicates
7056 (gnus-dup-enter-articles))
7057 (when gnus-use-trees
7058 (gnus-tree-close group))
16409b0b
GM
7059 (when gnus-use-cache
7060 (gnus-cache-write-active))
6748645f
LMI
7061 ;; Remove entries for this group.
7062 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7063 ;; Make all changes in this group permanent.
7064 (unless quit-config
6748645f 7065 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7066 (gnus-summary-update-info))
eec82323
LMI
7067 (gnus-close-group group)
7068 ;; Make sure where we were, and go to next newsgroup.
7069 (set-buffer gnus-group-buffer)
7070 (unless quit-config
7071 (gnus-group-jump-to-group group))
6748645f
LMI
7072 (gnus-run-hooks 'gnus-summary-exit-hook)
7073 (unless (or quit-config
01c52d31 7074 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7075 ;; If this group has disappeared from the summary
7076 ;; buffer, don't skip forwards.
7077 (not (string= group (gnus-group-group-name))))
eec82323 7078 (gnus-group-next-unread-group 1))
a8151ef7 7079 (setq group-point (point))
eec82323
LMI
7080 (if temporary
7081 nil ;Nothing to do.
eec82323
LMI
7082 (set-buffer buf)
7083 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7084 (progn
7085 (gnus-deaden-summary)
7086 (setq mode nil))
eec82323
LMI
7087 ;; We set all buffer-local variables to nil. It is unclear why
7088 ;; this is needed, but if we don't, buffer-local variables are
7089 ;; not garbage-collected, it seems. This would the lead to en
7090 ;; ever-growing Emacs.
7091 (gnus-summary-clear-local-variables)
23f87bed
MB
7092 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7093 (gnus-summary-clear-local-variables))
eec82323
LMI
7094 (when (get-buffer gnus-article-buffer)
7095 (bury-buffer gnus-article-buffer))
eec82323
LMI
7096 ;; Return to group mode buffer.
7097 (when (eq mode 'gnus-summary-mode)
7098 (gnus-kill-buffer buf)))
7099 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7100 (set-buffer gnus-group-buffer)
7101 (if quit-config
7102 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7103 (goto-char group-point)
7104 ;; If gnus-group-buffer is already displayed, make sure we also move
7105 ;; the cursor in the window that displays it.
7106 (let ((win (get-buffer-window (current-buffer) 0)))
7107 (if win (set-window-point win (point))))
d61c212b 7108 (unless leave-hidden
4e90f2b9 7109 (gnus-configure-windows 'group 'force)))
6748645f 7110 ;; Clear the current group name.
eec82323
LMI
7111 (unless quit-config
7112 (setq gnus-newsgroup-name nil)))))
7113
7114(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7115(defun gnus-summary-exit-no-update (&optional no-questions)
7116 "Quit reading current newsgroup without updating read article info."
7117 (interactive)
eec82323 7118 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7119 (gnus-group-is-exiting-p t)
7120 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7121 (quit-config (gnus-group-quit-config group)))
7122 (when (or no-questions
7123 gnus-expert-user
7124 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7125 (gnus-async-halt-prefetch)
23f87bed 7126 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7127 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7128 (with-current-buffer gnus-article-buffer
16409b0b
GM
7129 (mm-destroy-parts gnus-article-mime-handles)
7130 ;; Set it to nil for safety reason.
7131 (setq gnus-article-mime-handle-alist nil)
7132 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7133 ;; If we have several article buffers, we kill them at exit.
7134 (unless gnus-single-article-buffer
7135 (gnus-kill-buffer gnus-article-buffer)
7136 (gnus-kill-buffer gnus-original-article-buffer)
7137 (setq gnus-article-current nil))
7138 (if (not gnus-kill-summary-on-exit)
7139 (gnus-deaden-summary)
7140 (gnus-close-group group)
7141 (gnus-summary-clear-local-variables)
23f87bed
MB
7142 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7143 (gnus-summary-clear-local-variables))
7144 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7145 (unless gnus-single-article-buffer
7146 (setq gnus-article-current nil))
7147 (when gnus-use-trees
7148 (gnus-tree-close group))
7149 (gnus-async-prefetch-remove-group group)
7150 (when (get-buffer gnus-article-buffer)
7151 (bury-buffer gnus-article-buffer))
7152 ;; Return to the group buffer.
7153 (gnus-configure-windows 'group 'force)
7154 ;; Clear the current group name.
7155 (setq gnus-newsgroup-name nil)
23f87bed
MB
7156 (unless (gnus-ephemeral-group-p group)
7157 (gnus-group-update-group group))
eec82323
LMI
7158 (when (equal (gnus-group-group-name) group)
7159 (gnus-group-next-unread-group 1))
7160 (when quit-config
23f87bed 7161 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7162
7163(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7164 "Handle movement when leaving an ephemeral group.
7165The state which existed when entering the ephemeral is reset."
eec82323
LMI
7166 (if (not (buffer-name (car quit-config)))
7167 (gnus-configure-windows 'group 'force)
7168 (set-buffer (car quit-config))
7169 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7170 (gnus-set-global-variables))
7171 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7172 (save-current-buffer
23f87bed
MB
7173 ;; The `gnus-summary-buffer' variable may point
7174 ;; to the old summary buffer when using a single
7175 ;; article buffer.
7176 (unless (gnus-buffer-live-p gnus-summary-buffer)
7177 (set-buffer gnus-group-buffer))
7178 (set-buffer gnus-summary-buffer)
7179 (gnus-set-global-variables))))
eec82323 7180 (if (or (eq (cdr quit-config) 'article)
23f87bed 7181 (eq (cdr quit-config) 'pick))
01c52d31
MB
7182 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7183 (gnus-configure-windows 'pick 'force)
7184 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7185 (gnus-configure-windows (cdr quit-config) 'force))
7186 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7187 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7188 next-unread-noselect))
7189 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7190 'next-noselect)
7191 (gnus-summary-next-subject 1 nil t))
7192 ((eq gnus-auto-select-on-ephemeral-exit
7193 'next-unread-noselect)
7194 (gnus-summary-next-subject 1 t t))))
7195 ;; Hide the article buffer which displays the article different
7196 ;; from the one that the cursor points to in the summary buffer.
7197 (gnus-configure-windows 'summary 'force))
7198 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7199 (gnus-summary-next-subject 1))
7200 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7201 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7202 (gnus-summary-recenter)
7203 (gnus-summary-position-point))))
7204
7205;;; Dead summaries.
7206
7207(defvar gnus-dead-summary-mode-map nil)
7208
7209(unless gnus-dead-summary-mode-map
7210 (setq gnus-dead-summary-mode-map (make-keymap))
7211 (suppress-keymap gnus-dead-summary-mode-map)
7212 (substitute-key-definition
7213 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
23f87bed
MB
7214 (dolist (key '("\C-d" "\r" "\177" [delete]))
7215 (define-key gnus-dead-summary-mode-map
7216 key 'gnus-summary-wake-up-the-dead))
7217 (dolist (key '("q" "Q"))
7218 (define-key gnus-dead-summary-mode-map key 'bury-buffer)))
eec82323
LMI
7219
7220(defvar gnus-dead-summary-mode nil
7221 "Minor mode for Gnus summary buffers.")
7222
7223(defun gnus-dead-summary-mode (&optional arg)
7224 "Minor mode for Gnus summary buffers."
7225 (interactive "P")
7226 (when (eq major-mode 'gnus-summary-mode)
7227 (make-local-variable 'gnus-dead-summary-mode)
7228 (setq gnus-dead-summary-mode
7229 (if (null arg) (not gnus-dead-summary-mode)
7230 (> (prefix-numeric-value arg) 0)))
7231 (when gnus-dead-summary-mode
01c52d31 7232 (add-minor-mode
a8151ef7 7233 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI
7234
7235(defun gnus-deaden-summary ()
7236 "Make the current summary buffer into a dead summary buffer."
7237 ;; Kill any previous dead summary buffer.
7238 (when (and gnus-dead-summary
7239 (buffer-name gnus-dead-summary))
01c52d31 7240 (with-current-buffer gnus-dead-summary
eec82323
LMI
7241 (when gnus-dead-summary-mode
7242 (kill-buffer (current-buffer)))))
7243 ;; Make this the current dead summary.
7244 (setq gnus-dead-summary (current-buffer))
7245 (gnus-dead-summary-mode 1)
7246 (let ((name (buffer-name)))
7247 (when (string-match "Summary" name)
7248 (rename-buffer
7249 (concat (substring name 0 (match-beginning 0)) "Dead "
7250 (substring name (match-beginning 0)))
16409b0b
GM
7251 t)
7252 (bury-buffer))))
eec82323
LMI
7253
7254(defun gnus-kill-or-deaden-summary (buffer)
7255 "Kill or deaden the summary BUFFER."
6748645f
LMI
7256 (save-excursion
7257 (when (and (buffer-name buffer)
7258 (not gnus-single-article-buffer))
01c52d31 7259 (with-current-buffer buffer
6748645f
LMI
7260 (gnus-kill-buffer gnus-article-buffer)
7261 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7262 (cond
7263 ;; Kill the buffer.
7264 (gnus-kill-summary-on-exit
7265 (when (and gnus-use-trees
7266 (gnus-buffer-exists-p buffer))
c7a91ce1 7267 (with-current-buffer buffer
23f87bed
MB
7268 (gnus-tree-close gnus-newsgroup-name)))
7269 (gnus-kill-buffer buffer))
7270 ;; Deaden the buffer.
7271 ((gnus-buffer-exists-p buffer)
c7a91ce1 7272 (with-current-buffer buffer
23f87bed 7273 (gnus-deaden-summary))))))
eec82323
LMI
7274
7275(defun gnus-summary-wake-up-the-dead (&rest args)
7276 "Wake up the dead summary buffer."
7277 (interactive)
7278 (gnus-dead-summary-mode -1)
7279 (let ((name (buffer-name)))
7280 (when (string-match "Dead " name)
7281 (rename-buffer
7282 (concat (substring name 0 (match-beginning 0))
7283 (substring name (match-end 0)))
7284 t)))
7285 (gnus-message 3 "This dead summary is now alive again"))
7286
7287;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7288(defun gnus-summary-fetch-faq (&optional faq-dir)
7289 "Fetch the FAQ for the current group.
7290If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7291in."
7292 (interactive
7293 (list
7294 (when current-prefix-arg
7295 (completing-read
8f688cb0 7296 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7297 (mapcar 'list
a8151ef7 7298 gnus-group-faq-directory))))))
eec82323
LMI
7299 (let (gnus-faq-buffer)
7300 (when (setq gnus-faq-buffer
7301 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7302 (gnus-configure-windows 'summary-faq))))
7303
7304;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7305(defun gnus-summary-describe-group (&optional force)
7306 "Describe the current newsgroup."
7307 (interactive "P")
7308 (gnus-group-describe-group force gnus-newsgroup-name))
7309
7310(defun gnus-summary-describe-briefly ()
7311 "Describe summary mode commands briefly."
7312 (interactive)
16409b0b 7313 (gnus-message 6 (substitute-command-keys "\\<gnus-summary-mode-map>\\[gnus-summary-next-page]:Select \\[gnus-summary-next-unread-article]:Forward \\[gnus-summary-prev-unread-article]:Backward \\[gnus-summary-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-summary-describe-briefly]:This help")))
eec82323
LMI
7314
7315;; Walking around group mode buffer from summary mode.
7316
7317(defun gnus-summary-next-group (&optional no-article target-group backward)
7318 "Exit current newsgroup and then select next unread newsgroup.
7319If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7320initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7321previous group instead."
7322 (interactive "P")
eec82323
LMI
7323 ;; Stop pre-fetching.
7324 (gnus-async-halt-prefetch)
7325 (let ((current-group gnus-newsgroup-name)
7326 (current-buffer (current-buffer))
7327 entered)
7328 ;; First we semi-exit this group to update Xrefs and all variables.
7329 ;; We can't do a real exit, because the window conf must remain
7330 ;; the same in case the user is prompted for info, and we don't
7331 ;; want the window conf to change before that...
7332 (gnus-summary-exit t)
7333 (while (not entered)
7334 ;; Then we find what group we are supposed to enter.
7335 (set-buffer gnus-group-buffer)
7336 (gnus-group-jump-to-group current-group)
7337 (setq target-group
7338 (or target-group
7339 (if (eq gnus-keep-same-level 'best)
7340 (gnus-summary-best-group gnus-newsgroup-name)
7341 (gnus-summary-search-group backward gnus-keep-same-level))))
7342 (if (not target-group)
7343 ;; There are no further groups, so we return to the group
7344 ;; buffer.
7345 (progn
7346 (gnus-message 5 "Returning to the group buffer")
7347 (setq entered t)
7348 (when (gnus-buffer-live-p current-buffer)
7349 (set-buffer current-buffer)
7350 (gnus-summary-exit))
6748645f 7351 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7352 ;; We try to enter the target group.
7353 (gnus-group-jump-to-group target-group)
7354 (let ((unreads (gnus-group-group-unread)))
7355 (if (and (or (eq t unreads)
7356 (and unreads (not (zerop unreads))))
23f87bed
MB
7357 (gnus-summary-read-group
7358 target-group nil no-article
7359 (and (buffer-name current-buffer) current-buffer)
7360 nil backward))
eec82323
LMI
7361 (setq entered t)
7362 (setq current-group target-group
7363 target-group nil)))))))
7364
7365(defun gnus-summary-prev-group (&optional no-article)
7366 "Exit current newsgroup and then select previous unread newsgroup.
7367If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7368 (interactive "P")
7369 (gnus-summary-next-group no-article nil t))
7370
7371;; Walking around summary lines.
7372
23f87bed
MB
7373(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7374 "Go to the first subject satisfying any non-nil constraint.
7375If UNREAD is non-nil, the article should be unread.
7376If UNDOWNLOADED is non-nil, the article should be undownloaded.
7377If UNSEEN is non-nil, the article should be unseen.
7378Returns the article selected or nil if there are no matching articles."
eec82323 7379 (interactive "P")
23f87bed
MB
7380 (cond
7381 ;; Empty summary.
7382 ((null gnus-newsgroup-data)
7383 (gnus-message 3 "No articles in the group")
7384 nil)
7385 ;; Pick the first article.
7386 ((not (or unread undownloaded unseen))
7387 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7388 (gnus-data-number (car gnus-newsgroup-data)))
7389 ;; Find the first unread article.
7390 (t
7391 (let ((data gnus-newsgroup-data))
7392 (while (and data
7393 (let ((num (gnus-data-number (car data))))
7394 (or (memq num gnus-newsgroup-unfetched)
7395 (not (or (and unread
7396 (memq num gnus-newsgroup-unreads))
7397 (and undownloaded
7398 (memq num gnus-newsgroup-undownloaded))
7399 (and unseen
7400 (memq num gnus-newsgroup-unseen)))))))
7401 (setq data (cdr data)))
7402 (prog1
7403 (if data
7404 (progn
7405 (goto-char (gnus-data-pos (car data)))
7406 (gnus-data-number (car data)))
7407 (gnus-message 3 "No more%s articles"
7408 (let* ((r (when unread " unread"))
7409 (d (when undownloaded " undownloaded"))
7410 (s (when unseen " unseen"))
7411 (l (delq nil (list r d s))))
7412 (cond ((= 3 (length l))
7413 (concat r "," d ", or" s))
7414 ((= 2 (length l))
7415 (concat (car l) ", or" (cadr l)))
7416 ((= 1 (length l))
7417 (car l))
7418 (t
7419 ""))))
7420 nil
7421 )
7422 (gnus-summary-position-point))))))
eec82323
LMI
7423
7424(defun gnus-summary-next-subject (n &optional unread dont-display)
7425 "Go to next N'th summary line.
7426If N is negative, go to the previous N'th subject line.
7427If UNREAD is non-nil, only unread articles are selected.
7428The difference between N and the actual number of steps taken is
7429returned."
7430 (interactive "p")
7431 (let ((backward (< n 0))
7432 (n (abs n)))
7433 (while (and (> n 0)
7434 (if backward
7435 (gnus-summary-find-prev unread)
7436 (gnus-summary-find-next unread)))
16409b0b
GM
7437 (unless (zerop (setq n (1- n)))
7438 (gnus-summary-show-thread)))
eec82323
LMI
7439 (when (/= 0 n)
7440 (gnus-message 7 "No more%s articles"
7441 (if unread " unread" "")))
7442 (unless dont-display
7443 (gnus-summary-recenter)
7444 (gnus-summary-position-point))
7445 n))
7446
7447(defun gnus-summary-next-unread-subject (n)
7448 "Go to next N'th unread summary line."
7449 (interactive "p")
7450 (gnus-summary-next-subject n t))
7451
7452(defun gnus-summary-prev-subject (n &optional unread)
7453 "Go to previous N'th summary line.
7454If optional argument UNREAD is non-nil, only unread article is selected."
7455 (interactive "p")
7456 (gnus-summary-next-subject (- n) unread))
7457
7458(defun gnus-summary-prev-unread-subject (n)
7459 "Go to previous N'th unread summary line."
7460 (interactive "p")
7461 (gnus-summary-next-subject (- n) t))
7462
23f87bed
MB
7463(defun gnus-summary-goto-subjects (articles)
7464 "Insert the subject header for ARTICLES in the current buffer."
7465 (save-excursion
7466 (dolist (article articles)
7467 (gnus-summary-goto-subject article t)))
7468 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7469 (gnus-summary-position-point))
132cf96d 7470
eec82323 7471(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7472 "Go to the subject line of ARTICLE.
eec82323
LMI
7473If FORCE, also allow jumping to articles not currently shown."
7474 (interactive "nArticle number: ")
23f87bed
MB
7475 (unless (numberp article)
7476 (error "Article %s is not a number" article))
eec82323
LMI
7477 (let ((b (point))
7478 (data (gnus-data-find article)))
7479 ;; We read in the article if we have to.
7480 (and (not data)
7481 force
6748645f
LMI
7482 (gnus-summary-insert-subject
7483 article
7484 (if (or (numberp force) (vectorp force)) force)
7485 t)
eec82323
LMI
7486 (setq data (gnus-data-find article)))
7487 (goto-char b)
7488 (if (not data)
7489 (progn
7490 (unless silent
7491 (gnus-message 3 "Can't find article %d" article))
7492 nil)
23f87bed
MB
7493 (let ((pt (gnus-data-pos data)))
7494 (goto-char pt)
7495 (gnus-summary-set-article-display-arrow pt))
6748645f 7496 (gnus-summary-position-point)
eec82323
LMI
7497 article)))
7498
7499;; Walking around summary lines with displaying articles.
7500
7501(defun gnus-summary-expand-window (&optional arg)
7502 "Make the summary buffer take up the entire Emacs frame.
7503Given a prefix, will force an `article' buffer configuration."
7504 (interactive "P")
eec82323
LMI
7505 (if arg
7506 (gnus-configure-windows 'article 'force)
7507 (gnus-configure-windows 'summary 'force)))
7508
7509(defun gnus-summary-display-article (article &optional all-header)
7510 "Display ARTICLE in article buffer."
01c52d31
MB
7511 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7512 (with-current-buffer gnus-article-buffer
7513 (eq major-mode 'gnus-article-mode)))
7514 (gnus-article-setup-buffer))
eec82323 7515 (gnus-set-global-variables)
01c52d31
MB
7516 (with-current-buffer gnus-article-buffer
7517 (setq gnus-article-charset gnus-newsgroup-charset)
7518 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7519 (mm-enable-multibyte))
eec82323
LMI
7520 (if (null article)
7521 nil
7522 (prog1
7523 (if gnus-summary-display-article-function
7524 (funcall gnus-summary-display-article-function article all-header)
7525 (gnus-article-prepare article all-header))
6748645f 7526 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7527 (when (and gnus-current-article
7528 (not (zerop gnus-current-article)))
7529 (gnus-summary-goto-subject gnus-current-article))
7530 (gnus-summary-recenter)
7531 (when (and gnus-use-trees gnus-show-threads)
7532 (gnus-possibly-generate-tree article)
7533 (gnus-highlight-selected-tree article))
7534 ;; Successfully display article.
7535 (gnus-article-set-window-start
7536 (cdr (assq article gnus-newsgroup-bookmarks))))))
7537
7538(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7539 "Select the current article.
7540If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7541non-nil, the article will be re-fetched even if it already present in
7542the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7543be displayed."
7544 ;; Make sure we are in the summary buffer to work around bbdb bug.
7545 (unless (eq major-mode 'gnus-summary-mode)
7546 (set-buffer gnus-summary-buffer))
7547 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7548 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7549 gnus-summary-display-article-function)
eec82323
LMI
7550 (and (not pseudo)
7551 (gnus-summary-article-pseudo-p article)
a8151ef7 7552 (error "This is a pseudo-article"))
c7a91ce1 7553 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7554 (if (or (and gnus-single-article-buffer
7555 (or (null gnus-current-article)
7556 (null gnus-article-current)
7557 (null (get-buffer gnus-article-buffer))
7558 (not (eq article (cdr gnus-article-current)))
7559 (not (equal (car gnus-article-current)
7560 gnus-newsgroup-name))))
7561 (and (not gnus-single-article-buffer)
7562 (or (null gnus-current-article)
7563 (not (eq gnus-current-article article))))
7564 force)
7565 ;; The requested article is different from the current article.
7566 (progn
16409b0b
GM
7567 (gnus-summary-display-article article all-headers)
7568 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7569 (with-current-buffer gnus-article-buffer
16409b0b 7570 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7571 (mm-disable-multibyte))))
16409b0b
GM
7572 (gnus-article-set-window-start
7573 (cdr (assq article gnus-newsgroup-bookmarks)))
7574 article)
16409b0b 7575 'old))))
eec82323 7576
23f87bed
MB
7577(defun gnus-summary-force-verify-and-decrypt ()
7578 "Display buttons for signed/encrypted parts and verify/decrypt them."
7579 (interactive)
7580 (let ((mm-verify-option 'known)
7581 (mm-decrypt-option 'known)
7582 (gnus-article-emulate-mime t)
7583 (gnus-buttonized-mime-types (append (list "multipart/signed"
7584 "multipart/encrypted")
7585 gnus-buttonized-mime-types)))
7586 (gnus-summary-select-article nil 'force)))
7587
eec82323
LMI
7588(defun gnus-summary-set-current-mark (&optional current-mark)
7589 "Obsolete function."
7590 nil)
7591
7592(defun gnus-summary-next-article (&optional unread subject backward push)
7593 "Select the next article.
7594If UNREAD, only unread articles are selected.
7595If SUBJECT, only articles with SUBJECT are selected.
7596If BACKWARD, the previous article is selected instead of the next."
7597 (interactive "P")
11e95b02
MB
7598 ;; Make sure we are in the summary buffer.
7599 (unless (eq major-mode 'gnus-summary-mode)
7600 (set-buffer gnus-summary-buffer))
eec82323
LMI
7601 (cond
7602 ;; Is there such an article?
7603 ((and (gnus-summary-search-forward unread subject backward)
7604 (or (gnus-summary-display-article (gnus-summary-article-number))
7605 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7606 (gnus-summary-position-point))
7607 ;; If not, we try the first unread, if that is wanted.
7608 ((and subject
7609 gnus-auto-select-same
7610 (gnus-summary-first-unread-article))
7611 (gnus-summary-position-point)
7612 (gnus-message 6 "Wrapped"))
7613 ;; Try to get next/previous article not displayed in this group.
7614 ((and gnus-auto-extend-newsgroup
7615 (not unread) (not subject))
7616 (gnus-summary-goto-article
7617 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7618 nil (count-lines (point-min) (point))))
eec82323
LMI
7619 ;; Go to next/previous group.
7620 (t
7621 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7622 (gnus-summary-jump-to-group gnus-newsgroup-name))
7623 (let ((cmd last-command-char)
7624 (point
01c52d31 7625 (with-current-buffer gnus-group-buffer
eec82323
LMI
7626 (point)))
7627 (group
7628 (if (eq gnus-keep-same-level 'best)
7629 (gnus-summary-best-group gnus-newsgroup-name)
7630 (gnus-summary-search-group backward gnus-keep-same-level))))
7631 ;; For some reason, the group window gets selected. We change
7632 ;; it back.
7633 (select-window (get-buffer-window (current-buffer)))
7634 ;; Select next unread newsgroup automagically.
7635 (cond
7636 ((or (not gnus-auto-select-next)
7637 (not cmd))
7638 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7639 ((or (eq gnus-auto-select-next 'quietly)
7640 (and (eq gnus-auto-select-next 'slightly-quietly)
7641 push)
7642 (and (eq gnus-auto-select-next 'almost-quietly)
7643 (gnus-summary-last-article-p)))
7644 ;; Select quietly.
7645 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7646 (gnus-summary-exit)
7647 (gnus-message 7 "No more%s articles (%s)..."
7648 (if unread " unread" "")
7649 (if group (concat "selecting " group)
7650 "exiting"))
7651 (gnus-summary-next-group nil group backward)))
7652 (t
7653 (when (gnus-key-press-event-p last-input-event)
7654 (gnus-summary-walk-group-buffer
7655 gnus-newsgroup-name cmd unread backward point))))))))
7656
7657(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7658 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7659 (?\C-p (gnus-group-prev-unread-group 1))))
7660 (cursor-in-echo-area t)
23f87bed 7661 keve key group ended prompt)
c7a91ce1 7662 (with-current-buffer gnus-group-buffer
eec82323
LMI
7663 (goto-char start)
7664 (setq group
7665 (if (eq gnus-keep-same-level 'best)
7666 (gnus-summary-best-group gnus-newsgroup-name)
7667 (gnus-summary-search-group backward gnus-keep-same-level))))
7668 (while (not ended)
23f87bed
MB
7669 (setq prompt
7670 (format
7671 "No more%s articles%s " (if unread " unread" "")
7672 (if (and group
7673 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7674 (format " (Type %s for %s [%s])"
91472578
MB
7675 (single-key-description cmd)
7676 (gnus-group-decoded-name group)
01c52d31 7677 (gnus-group-unread group))
23f87bed
MB
7678 (format " (Type %s to exit %s)"
7679 (single-key-description cmd)
91472578 7680 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7681 ;; Confirm auto selection.
23f87bed
MB
7682 (setq key (car (setq keve (gnus-read-event-char prompt)))
7683 ended t)
eec82323
LMI
7684 (cond
7685 ((assq key keystrokes)
7686 (let ((obuf (current-buffer)))
7687 (switch-to-buffer gnus-group-buffer)
7688 (when group
7689 (gnus-group-jump-to-group group))
7690 (eval (cadr (assq key keystrokes)))
7691 (setq group (gnus-group-group-name))
7692 (switch-to-buffer obuf))
7693 (setq ended nil))
7694 ((equal key cmd)
7695 (if (or (not group)
7696 (gnus-ephemeral-group-p gnus-newsgroup-name))
7697 (gnus-summary-exit)
7698 (gnus-summary-next-group nil group backward)))
7699 (t
7700 (push (cdr keve) unread-command-events))))))
7701
7702(defun gnus-summary-next-unread-article ()
7703 "Select unread article after current one."
7704 (interactive)
7705 (gnus-summary-next-article
7706 (or (not (eq gnus-summary-goto-unread 'never))
7707 (gnus-summary-last-article-p (gnus-summary-article-number)))
7708 (and gnus-auto-select-same
7709 (gnus-summary-article-subject))))
7710
7711(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7712 "Select the article before the current one.
eec82323
LMI
7713If UNREAD is non-nil, only unread articles are selected."
7714 (interactive "P")
7715 (gnus-summary-next-article unread subject t))
7716
7717(defun gnus-summary-prev-unread-article ()
7718 "Select unread article before current one."
7719 (interactive)
7720 (gnus-summary-prev-article
7721 (or (not (eq gnus-summary-goto-unread 'never))
7722 (gnus-summary-first-article-p (gnus-summary-article-number)))
7723 (and gnus-auto-select-same
7724 (gnus-summary-article-subject))))
7725
23f87bed 7726(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7727 "Show next page of the selected article.
7728If at the end of the current article, select the next article.
7729LINES says how many lines should be scrolled up.
7730
7731If CIRCULAR is non-nil, go to the start of the article instead of
7732selecting the next article when reaching the end of the current
23f87bed
MB
7733article.
7734
7735If STOP is non-nil, just stop when reaching the end of the message.
7736
7737Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7738 (interactive "P")
7739 (setq gnus-summary-buffer (current-buffer))
7740 (gnus-set-global-variables)
7741 (let ((article (gnus-summary-article-number))
7742 (article-window (get-buffer-window gnus-article-buffer t))
7743 endp)
6748645f
LMI
7744 ;; If the buffer is empty, we have no article.
7745 (unless article
7746 (error "No article to select"))
eec82323
LMI
7747 (gnus-configure-windows 'article)
7748 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7749 (if (and (eq gnus-summary-goto-unread 'never)
7750 (not (gnus-summary-last-article-p article)))
7751 (gnus-summary-next-article)
7752 (gnus-summary-next-unread-article))
7753 (if (or (null gnus-current-article)
7754 (null gnus-article-current)
7755 (/= article (cdr gnus-article-current))
7756 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7757 ;; Selected subject is different from current article's.
7758 (gnus-summary-display-article article)
7759 (when article-window
7760 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7761 (setq endp (or (gnus-article-next-page lines)
7762 (gnus-article-only-boring-p))))
eec82323 7763 (when endp
23f87bed
MB
7764 (cond (stop
7765 (gnus-message 3 "End of message"))
7766 (circular
eec82323
LMI
7767 (gnus-summary-beginning-of-article))
7768 (lines
7769 (gnus-message 3 "End of message"))
7770 ((null lines)
7771 (if (and (eq gnus-summary-goto-unread 'never)
7772 (not (gnus-summary-last-article-p article)))
7773 (gnus-summary-next-article)
7774 (gnus-summary-next-unread-article))))))))
7775 (gnus-summary-recenter)
7776 (gnus-summary-position-point)))
7777
7778(defun gnus-summary-prev-page (&optional lines move)
7779 "Show previous page of selected article.
7780Argument LINES specifies lines to be scrolled down.
7781If MOVE, move to the previous unread article if point is at
7782the beginning of the buffer."
7783 (interactive "P")
eec82323
LMI
7784 (let ((article (gnus-summary-article-number))
7785 (article-window (get-buffer-window gnus-article-buffer t))
7786 endp)
7787 (gnus-configure-windows 'article)
7788 (if (or (null gnus-current-article)
7789 (null gnus-article-current)
7790 (/= article (cdr gnus-article-current))
7791 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7792 ;; Selected subject is different from current article's.
7793 (gnus-summary-display-article article)
7794 (gnus-summary-recenter)
7795 (when article-window
7796 (gnus-eval-in-buffer-window gnus-article-buffer
7797 (setq endp (gnus-article-prev-page lines)))
7798 (when (and move endp)
7799 (cond (lines
7800 (gnus-message 3 "Beginning of message"))
7801 ((null lines)
7802 (if (and (eq gnus-summary-goto-unread 'never)
7803 (not (gnus-summary-first-article-p article)))
7804 (gnus-summary-prev-article)
7805 (gnus-summary-prev-unread-article))))))))
7806 (gnus-summary-position-point))
7807
7808(defun gnus-summary-prev-page-or-article (&optional lines)
7809 "Show previous page of selected article.
7810Argument LINES specifies lines to be scrolled down.
7811If at the beginning of the article, go to the next article."
7812 (interactive "P")
7813 (gnus-summary-prev-page lines t))
7814
7815(defun gnus-summary-scroll-up (lines)
7816 "Scroll up (or down) one line current article.
7817Argument LINES specifies lines to be scrolled up (or down if negative)."
7818 (interactive "p")
eec82323
LMI
7819 (gnus-configure-windows 'article)
7820 (gnus-summary-show-thread)
7821 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7822 (gnus-eval-in-buffer-window gnus-article-buffer
7823 (cond ((> lines 0)
7824 (when (gnus-article-next-page lines)
7825 (gnus-message 3 "End of message")))
7826 ((< lines 0)
7827 (gnus-article-prev-page (- lines))))))
7828 (gnus-summary-recenter)
7829 (gnus-summary-position-point))
7830
6748645f
LMI
7831(defun gnus-summary-scroll-down (lines)
7832 "Scroll down (or up) one line current article.
7833Argument LINES specifies lines to be scrolled down (or up if negative)."
7834 (interactive "p")
7835 (gnus-summary-scroll-up (- lines)))
7836
eec82323
LMI
7837(defun gnus-summary-next-same-subject ()
7838 "Select next article which has the same subject as current one."
7839 (interactive)
eec82323
LMI
7840 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7841
7842(defun gnus-summary-prev-same-subject ()
7843 "Select previous article which has the same subject as current one."
7844 (interactive)
eec82323
LMI
7845 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7846
7847(defun gnus-summary-next-unread-same-subject ()
7848 "Select next unread article which has the same subject as current one."
7849 (interactive)
eec82323
LMI
7850 (gnus-summary-next-article t (gnus-summary-article-subject)))
7851
7852(defun gnus-summary-prev-unread-same-subject ()
7853 "Select previous unread article which has the same subject as current one."
7854 (interactive)
eec82323
LMI
7855 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7856
7857(defun gnus-summary-first-unread-article ()
7858 "Select the first unread article.
7859Return nil if there are no unread articles."
7860 (interactive)
eec82323
LMI
7861 (prog1
7862 (when (gnus-summary-first-subject t)
7863 (gnus-summary-show-thread)
7864 (gnus-summary-first-subject t)
7865 (gnus-summary-display-article (gnus-summary-article-number)))
7866 (gnus-summary-position-point)))
7867
16409b0b
GM
7868(defun gnus-summary-first-unread-subject ()
7869 "Place the point on the subject line of the first unread article.
7870Return nil if there are no unread articles."
7871 (interactive)
7872 (prog1
7873 (when (gnus-summary-first-subject t)
7874 (gnus-summary-show-thread)
7875 (gnus-summary-first-subject t))
7876 (gnus-summary-position-point)))
7877
23f87bed
MB
7878(defun gnus-summary-first-unseen-subject ()
7879 "Place the point on the subject line of the first unseen article.
7880Return nil if there are no unseen articles."
7881 (interactive)
7882 (prog1
7883 (when (gnus-summary-first-subject nil nil t)
7884 (gnus-summary-show-thread)
7885 (gnus-summary-first-subject nil nil t))
7886 (gnus-summary-position-point)))
7887
7888(defun gnus-summary-first-unseen-or-unread-subject ()
7889 "Place the point on the subject line of the first unseen article or,
7890if all article have been seen, on the subject line of the first unread
7891article."
7892 (interactive)
7893 (prog1
7894 (unless (when (gnus-summary-first-subject nil nil t)
7895 (gnus-summary-show-thread)
7896 (gnus-summary-first-subject nil nil t))
7897 (when (gnus-summary-first-subject t)
7898 (gnus-summary-show-thread)
7899 (gnus-summary-first-subject t)))
7900 (gnus-summary-position-point)))
7901
eec82323
LMI
7902(defun gnus-summary-first-article ()
7903 "Select the first article.
7904Return nil if there are no articles."
7905 (interactive)
eec82323
LMI
7906 (prog1
7907 (when (gnus-summary-first-subject)
16409b0b
GM
7908 (gnus-summary-show-thread)
7909 (gnus-summary-first-subject)
7910 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7911 (gnus-summary-position-point)))
7912
23f87bed
MB
7913(defun gnus-summary-best-unread-article (&optional arg)
7914 "Select the unread article with the highest score.
7915If given a prefix argument, select the next unread article that has a
7916score higher than the default score."
7917 (interactive "P")
7918 (let ((article (if arg
7919 (gnus-summary-better-unread-subject)
7920 (gnus-summary-best-unread-subject))))
7921 (if article
7922 (gnus-summary-goto-article article)
7923 (error "No unread articles"))))
7924
7925(defun gnus-summary-best-unread-subject ()
7926 "Select the unread subject with the highest score."
eec82323 7927 (interactive)
eec82323
LMI
7928 (let ((best -1000000)
7929 (data gnus-newsgroup-data)
7930 article score)
7931 (while data
7932 (and (gnus-data-unread-p (car data))
7933 (> (setq score
7934 (gnus-summary-article-score (gnus-data-number (car data))))
7935 best)
7936 (setq best score
7937 article (gnus-data-number (car data))))
7938 (setq data (cdr data)))
23f87bed
MB
7939 (when article
7940 (gnus-summary-goto-subject article))
7941 (gnus-summary-position-point)
7942 article))
7943
7944(defun gnus-summary-better-unread-subject ()
7945 "Select the first unread subject that has a score over the default score."
7946 (interactive)
7947 (let ((data gnus-newsgroup-data)
7948 article score)
7949 (while (and (setq article (gnus-data-number (car data)))
7950 (or (gnus-data-read-p (car data))
7951 (not (> (gnus-summary-article-score article)
7952 gnus-summary-default-score))))
7953 (setq data (cdr data)))
7954 (when article
7955 (gnus-summary-goto-subject article))
7956 (gnus-summary-position-point)
7957 article))
eec82323
LMI
7958
7959(defun gnus-summary-last-subject ()
7960 "Go to the last displayed subject line in the group."
7961 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7962 (when article
7963 (gnus-summary-goto-subject article))))
7964
7965(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7966 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7967If ALL-HEADERS is non-nil, no header lines are hidden.
7968If FORCE, go to the article even if it isn't displayed. If FORCE
7969is a number, it is the line the article is to be displayed on."
eec82323
LMI
7970 (interactive
7971 (list
6748645f
LMI
7972 (completing-read
7973 "Article number or Message-ID: "
7974 (mapcar (lambda (number) (list (int-to-string number)))
7975 gnus-newsgroup-limit))
eec82323
LMI
7976 current-prefix-arg
7977 t))
7978 (prog1
6748645f 7979 (if (and (stringp article)
23f87bed 7980 (string-match "@\\|%40" article))
6748645f
LMI
7981 (gnus-summary-refer-article article)
7982 (when (stringp article)
7983 (setq article (string-to-number article)))
7984 (if (gnus-summary-goto-subject article force)
7985 (gnus-summary-display-article article all-headers)
7986 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
7987 (gnus-summary-position-point)))
7988
7989(defun gnus-summary-goto-last-article ()
7990 "Go to the previously read article."
7991 (interactive)
7992 (prog1
7993 (when gnus-last-article
6748645f 7994 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
7995 (gnus-summary-position-point)))
7996
7997(defun gnus-summary-pop-article (number)
7998 "Pop one article off the history and go to the previous.
7999NUMBER articles will be popped off."
8000 (interactive "p")
8001 (let (to)
8002 (setq gnus-newsgroup-history
8003 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8004 (if to
6748645f 8005 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8006 (error "Article history empty")))
8007 (gnus-summary-position-point))
8008
8009;; Summary commands and functions for limiting the summary buffer.
8010
8011(defun gnus-summary-limit-to-articles (n)
8012 "Limit the summary buffer to the next N articles.
8013If not given a prefix, use the process marked articles instead."
8014 (interactive "P")
eec82323
LMI
8015 (prog1
8016 (let ((articles (gnus-summary-work-articles n)))
8017 (setq gnus-newsgroup-processable nil)
8018 (gnus-summary-limit articles))
8019 (gnus-summary-position-point)))
8020
8021(defun gnus-summary-pop-limit (&optional total)
8022 "Restore the previous limit.
8023If given a prefix, remove all limits."
8024 (interactive "P")
eec82323
LMI
8025 (when total
8026 (setq gnus-newsgroup-limits
8027 (list (mapcar (lambda (h) (mail-header-number h))
8028 gnus-newsgroup-headers))))
8029 (unless gnus-newsgroup-limits
8030 (error "No limit to pop"))
8031 (prog1
8032 (gnus-summary-limit nil 'pop)
8033 (gnus-summary-position-point)))
8034
47b63dfa
SZ
8035(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8036 "Limit the summary buffer to articles that have subjects that match a regexp.
8037If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8038 (interactive
47b63dfa
SZ
8039 (list (read-string (if current-prefix-arg
8040 "Exclude subject (regexp): "
a1506d29 8041 "Limit to subject (regexp): "))
47b63dfa 8042 nil current-prefix-arg))
eec82323
LMI
8043 (unless header
8044 (setq header "subject"))
8045 (when (not (equal "" subject))
8046 (prog1
8047 (let ((articles (gnus-summary-find-matching
a1506d29 8048 (or header "subject") subject 'all nil nil
47b63dfa 8049 not-matching)))
eec82323
LMI
8050 (unless articles
8051 (error "Found no matches for \"%s\"" subject))
8052 (gnus-summary-limit articles))
8053 (gnus-summary-position-point))))
8054
ef6e0ec7 8055(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8056 "Limit the summary buffer to articles that have authors that match a regexp.
8057If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8058 (interactive
47b63dfa
SZ
8059 (list (read-string (if current-prefix-arg
8060 "Exclude author (regexp): "
a1506d29 8061 "Limit to author (regexp): "))
ef6e0ec7
SZ
8062 current-prefix-arg))
8063 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8064
01c52d31
MB
8065(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8066 "Limit the summary buffer to articles with the given RECIPIENT.
8067
8068If NOT-MATCHING, exclude RECIPIENT.
8069
8070To and Cc headers are checked. You need to include them in
8071`nnmail-extra-headers'."
8072 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8073 (interactive
8074 (list (read-string (format "%s recipient (regexp): "
8075 (if current-prefix-arg "Exclude" "Limit to")))
8076 current-prefix-arg))
8077 (when (not (equal "" recipient))
8078 (prog1 (let* ((to
8079 (if (memq 'To nnmail-extra-headers)
8080 (gnus-summary-find-matching
8081 (cons 'extra 'To) recipient 'all nil nil
8082 not-matching)
8083 (gnus-message
8084 1 "`To' isn't present in `nnmail-extra-headers'")
8085 (sit-for 1)
8086 nil))
8087 (cc
8088 (if (memq 'Cc nnmail-extra-headers)
8089 (gnus-summary-find-matching
8090 (cons 'extra 'Cc) recipient 'all nil nil
8091 not-matching)
8092 (gnus-message
8093 1 "`Cc' isn't present in `nnmail-extra-headers'")
8094 (sit-for 1)
8095 nil))
8096 (articles
8097 (if not-matching
8098 ;; We need the numbers that are in both lists:
8099 (mapcar (lambda (a)
8100 (and (memq a to) a))
8101 cc)
8102 (nconc to cc))))
8103 (unless articles
8104 (error "Found no matches for \"%s\"" recipient))
8105 (gnus-summary-limit articles))
8106 (gnus-summary-position-point))))
8107
8108(defun gnus-summary-limit-to-address (address &optional not-matching)
8109 "Limit the summary buffer to articles with the given ADDRESS.
8110
8111If NOT-MATCHING, exclude ADDRESS.
8112
8113To, Cc and From headers are checked. You need to include `To' and `Cc'
8114in `nnmail-extra-headers'."
8115 (interactive
8116 (list (read-string (format "%s address (regexp): "
8117 (if current-prefix-arg "Exclude" "Limit to")))
8118 current-prefix-arg))
8119 (when (not (equal "" address))
8120 (prog1 (let* ((to
8121 (if (memq 'To nnmail-extra-headers)
8122 (gnus-summary-find-matching
8123 (cons 'extra 'To) address 'all nil nil
8124 not-matching)
8125 (gnus-message
8126 1 "`To' isn't present in `nnmail-extra-headers'")
8127 (sit-for 1)
8128 t))
8129 (cc
8130 (if (memq 'Cc nnmail-extra-headers)
8131 (gnus-summary-find-matching
8132 (cons 'extra 'Cc) address 'all nil nil
8133 not-matching)
8134 (gnus-message
8135 1 "`Cc' isn't present in `nnmail-extra-headers'")
8136 (sit-for 1)
8137 t))
8138 (from
8139 (gnus-summary-find-matching "from" address
8140 'all nil nil not-matching))
8141 (articles
8142 (if not-matching
8143 ;; We need the numbers that are in all lists:
8144 (if (eq cc t)
8145 (if (eq to t)
8146 from
8147 (mapcar (lambda (a) (car (memq a from))) to))
8148 (if (eq to t)
8149 (mapcar (lambda (a) (car (memq a from))) cc)
8150 (mapcar (lambda (a) (car (memq a from)))
8151 (mapcar (lambda (a) (car (memq a to)))
8152 cc))))
8153 (nconc (if (eq to t) nil to)
8154 (if (eq cc t) nil cc)
8155 from))))
8156 (unless articles
8157 (error "Found no matches for \"%s\"" address))
8158 (gnus-summary-limit articles))
8159 (gnus-summary-position-point))))
8160
8161(defun gnus-summary-limit-strange-charsets-predicate (header)
8162 (let ((string (concat (mail-header-subject header)
8163 (mail-header-from header)))
8164 charset found)
8165 (dotimes (i (1- (length string)))
8166 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8167 (when (string-match "unicode\\|big\\|japanese" charset)
8168 (setq found t)))
8169 found))
8170
8171(defun gnus-summary-limit-to-predicate (predicate)
8172 "Limit to articles where PREDICATE returns non-nil.
8173PREDICATE will be called with the header structures of the
8174articles."
8175 (let ((articles nil)
8176 (case-fold-search t))
8177 (dolist (header gnus-newsgroup-headers)
8178 (when (funcall predicate header)
8179 (push (mail-header-number header) articles)))
8180 (gnus-summary-limit (nreverse articles))))
8181
eec82323
LMI
8182(defun gnus-summary-limit-to-age (age &optional younger-p)
8183 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8184If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8185articles that are younger than AGE days."
16409b0b
GM
8186 (interactive
8187 (let ((younger current-prefix-arg)
8188 (days-got nil)
8189 days)
8190 (while (not days-got)
8191 (setq days (if younger
23f87bed
MB
8192 (read-string "Limit to articles younger than (in days, older when negative): ")
8193 (read-string
8194 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8195 (when (> (length days) 0)
8196 (setq days (read days)))
8197 (if (numberp days)
23f87bed
MB
8198 (progn
8199 (setq days-got t)
01c52d31
MB
8200 (when (< days 0)
8201 (setq younger (not younger))
8202 (setq days (* days -1))))
16409b0b
GM
8203 (message "Please enter a number.")
8204 (sleep-for 1)))
8205 (list days younger)))
eec82323
LMI
8206 (prog1
8207 (let ((data gnus-newsgroup-data)
16409b0b 8208 (cutoff (days-to-time age))
eec82323
LMI
8209 articles d date is-younger)
8210 (while (setq d (pop data))
8211 (when (and (vectorp (gnus-data-header d))
8212 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM
8213 (setq is-younger (time-less-p
8214 (time-since (condition-case ()
8215 (date-to-time date)
8216 (error '(0 0))))
eec82323 8217 cutoff))
6748645f
LMI
8218 (when (if younger-p
8219 is-younger
8220 (not is-younger))
eec82323
LMI
8221 (push (gnus-data-number d) articles))))
8222 (gnus-summary-limit (nreverse articles)))
8223 (gnus-summary-position-point)))
8224
47b63dfa 8225(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8226 "Limit the summary buffer to articles that match an 'extra' header."
8227 (interactive
8228 (let ((header
8229 (intern
23f87bed 8230 (gnus-completing-read-with-default
16409b0b 8231 (symbol-name (car gnus-extra-headers))
47b63dfa 8232 (if current-prefix-arg
81df110a
RF
8233 "Exclude extra header"
8234 "Limit extra header")
16409b0b
GM
8235 (mapcar (lambda (x)
8236 (cons (symbol-name x) x))
8237 gnus-extra-headers)
8238 nil
8239 t))))
8240 (list header
a1506d29 8241 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8242 (if current-prefix-arg "Exclude" "Limit to")
8243 header))
8244 current-prefix-arg)))
16409b0b
GM
8245 (when (not (equal "" regexp))
8246 (prog1
8247 (let ((articles (gnus-summary-find-matching
a1506d29 8248 (cons 'extra header) regexp 'all nil nil
47b63dfa 8249 not-matching)))
16409b0b
GM
8250 (unless articles
8251 (error "Found no matches for \"%s\"" regexp))
8252 (gnus-summary-limit articles))
8253 (gnus-summary-position-point))))
8254
23f87bed
MB
8255(defun gnus-summary-limit-to-display-predicate ()
8256 "Limit the summary buffer to the predicated in the `display' group parameter."
8257 (interactive)
8258 (unless gnus-newsgroup-display
8259 (error "There is no `display' group parameter"))
8260 (let (articles)
8261 (dolist (number gnus-newsgroup-articles)
8262 (when (funcall gnus-newsgroup-display)
8263 (push number articles)))
8264 (gnus-summary-limit articles))
8265 (gnus-summary-position-point))
8266
eec82323
LMI
8267(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8268(make-obsolete
8269 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8270
8271(defun gnus-summary-limit-to-unread (&optional all)
8272 "Limit the summary buffer to articles that are not marked as read.
8273If ALL is non-nil, limit strictly to unread articles."
8274 (interactive "P")
8275 (if all
8276 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8277 (gnus-summary-limit-to-marks
8278 ;; Concat all the marks that say that an article is read and have
8279 ;; those removed.
8280 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8281 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8282 gnus-low-score-mark gnus-expirable-mark
8283 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
8284 gnus-duplicate-mark gnus-souped-mark)
8285 'reverse)))
8286
01c52d31
MB
8287(defun gnus-summary-limit-to-headers (match &optional reverse)
8288 "Limit the summary buffer to articles that have headers that match MATCH.
8289If REVERSE (the prefix), limit to articles that don't match."
8290 (interactive "sMatch headers (regexp): \nP")
8291 (gnus-summary-limit-to-bodies match reverse t))
8292
8293(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8294 "Limit the summary buffer to articles that have bodies that match MATCH.
8295If REVERSE (the prefix), limit to articles that don't match."
8296 (interactive "sMatch body (regexp): \nP")
8297 (let ((articles nil)
8298 (gnus-select-article-hook nil) ;Disable hook.
8299 (gnus-article-prepare-hook nil)
8300 (gnus-use-article-prefetch nil)
8301 (gnus-keep-backlog nil)
8302 (gnus-break-pages nil)
8303 (gnus-summary-display-arrow nil)
8304 (gnus-updated-mode-lines nil)
8305 (gnus-auto-center-summary nil)
8306 (gnus-display-mime-function nil))
8307 (dolist (data gnus-newsgroup-data)
8308 (let (gnus-mark-article-hook)
8309 (gnus-summary-select-article t t nil (gnus-data-number data)))
8310 (save-excursion
8311 (set-buffer gnus-article-buffer)
8312 (article-goto-body)
8313 (let* ((case-fold-search t)
8314 (found (if headersp
8315 (re-search-backward match nil t)
8316 (re-search-forward match nil t))))
8317 (when (or (and found
8318 (not reverse))
8319 (and (not found)
8320 reverse))
8321 (push (gnus-data-number data) articles)))))
8322 (if (not articles)
8323 (message "No messages matched")
8324 (gnus-summary-limit articles)))
8325 (gnus-summary-position-point))
8326
8327(defun gnus-summary-limit-to-singletons (&optional threadsp)
8328 "Limit the summary buffer to articles that aren't part on any thread.
8329If THREADSP (the prefix), limit to articles that are in threads."
8330 (interactive "P")
8331 (let ((articles nil)
8332 thread-articles
8333 threads)
8334 (dolist (thread gnus-newsgroup-threads)
8335 (if (stringp (car thread))
8336 (dolist (thread (cdr thread))
8337 (push thread threads))
8338 (push thread threads)))
8339 (dolist (thread threads)
8340 (setq thread-articles (gnus-articles-in-thread thread))
8341 (when (or (and threadsp
8342 (> (length thread-articles) 1))
8343 (and (not threadsp)
8344 (= (length thread-articles) 1)))
8345 (setq articles (nconc thread-articles articles))))
8346 (if (not articles)
8347 (message "No messages matched")
8348 (gnus-summary-limit articles))
8349 (gnus-summary-position-point)))
8350
8351(defun gnus-summary-limit-to-replied (&optional unreplied)
8352 "Limit the summary buffer to replied articles.
8353If UNREPLIED (the prefix), limit to unreplied articles."
8354 (interactive "P")
8355 (if unreplied
8356 (gnus-summary-limit
8357 (gnus-set-difference gnus-newsgroup-articles
8358 gnus-newsgroup-replied))
8359 (gnus-summary-limit gnus-newsgroup-replied))
8360 (gnus-summary-position-point))
8361
eec82323
LMI
8362(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8363(make-obsolete 'gnus-summary-delete-marked-with
81ceefe2 8364 'gnus-summary-limit-exclude-marks)
eec82323
LMI
8365
8366(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8367 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8368If REVERSE, limit the summary buffer to articles that are marked
8369with MARKS. MARKS can either be a string of marks or a list of marks.
8370Returns how many articles were removed."
8371 (interactive "sMarks: ")
8372 (gnus-summary-limit-to-marks marks t))
8373
8374(defun gnus-summary-limit-to-marks (marks &optional reverse)
8375 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8376If REVERSE (the prefix), limit the summary buffer to articles that are
8377not marked with MARKS. MARKS can either be a string of marks or a
8378list of marks.
8379Returns how many articles were removed."
6748645f 8380 (interactive "sMarks: \nP")
eec82323
LMI
8381 (prog1
8382 (let ((data gnus-newsgroup-data)
8383 (marks (if (listp marks) marks
8384 (append marks nil))) ; Transform to list.
8385 articles)
8386 (while data
8387 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8388 (memq (gnus-data-mark (car data)) marks))
8389 (push (gnus-data-number (car data)) articles))
8390 (setq data (cdr data)))
8391 (gnus-summary-limit articles))
8392 (gnus-summary-position-point)))
8393
23f87bed 8394(defun gnus-summary-limit-to-score (score)
eec82323 8395 "Limit to articles with score at or above SCORE."
23f87bed 8396 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8397 (let ((data gnus-newsgroup-data)
8398 articles)
8399 (while data
8400 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8401 score)
8402 (push (gnus-data-number (car data)) articles))
8403 (setq data (cdr data)))
8404 (prog1
8405 (gnus-summary-limit articles)
8406 (gnus-summary-position-point))))
8407
23f87bed
MB
8408(defun gnus-summary-limit-to-unseen ()
8409 "Limit to unseen articles."
8410 (interactive)
8411 (prog1
8412 (gnus-summary-limit gnus-newsgroup-unseen)
8413 (gnus-summary-position-point)))
8414
6748645f 8415(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8416 "Display all the hidden articles that is in the thread with ID in it.
8417When called interactively, ID is the Message-ID of the current
8418article."
6748645f
LMI
8419 (interactive (list (mail-header-id (gnus-summary-article-header))))
8420 (let ((articles (gnus-articles-in-thread
8421 (gnus-id-to-thread (gnus-root-id id)))))
8422 (prog1
8423 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8424 (gnus-summary-limit-include-matching-articles
8425 "subject"
8426 (regexp-quote (gnus-simplify-subject-re
8427 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8428 (gnus-summary-position-point))))
8429
23f87bed
MB
8430(defun gnus-summary-limit-include-matching-articles (header regexp)
8431 "Display all the hidden articles that have HEADERs that match REGEXP."
8432 (interactive (list (read-string "Match on header: ")
8433 (read-string "Regexp: ")))
8434 (let ((articles (gnus-find-matching-articles header regexp)))
8435 (prog1
8436 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8437 (gnus-summary-position-point))))
8438
8439(defun gnus-summary-insert-dormant-articles ()
8440 "Insert all the dormant articles for this group into the current buffer."
8441 (interactive)
8442 (let ((gnus-verbose (max 6 gnus-verbose)))
8443 (if (not gnus-newsgroup-dormant)
db629244 8444 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8445 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8446
01c52d31
MB
8447(defun gnus-summary-insert-ticked-articles ()
8448 "Insert ticked articles for this group into the current buffer."
8449 (interactive)
8450 (let ((gnus-verbose (max 6 gnus-verbose)))
8451 (if (not gnus-newsgroup-marked)
8452 (gnus-message 3 "No ticked articles for this group")
8453 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8454
eec82323 8455(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8456 "Display all the hidden articles that are marked as dormant.
8457Note that this command only works on a subset of the articles currently
8458fetched for this group."
eec82323 8459 (interactive)
eec82323
LMI
8460 (unless gnus-newsgroup-dormant
8461 (error "There are no dormant articles in this group"))
8462 (prog1
8463 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8464 (gnus-summary-position-point)))
8465
8466(defun gnus-summary-limit-exclude-dormant ()
8467 "Hide all dormant articles."
8468 (interactive)
eec82323
LMI
8469 (prog1
8470 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8471 (gnus-summary-position-point)))
8472
8473(defun gnus-summary-limit-exclude-childless-dormant ()
8474 "Hide all dormant articles that have no children."
8475 (interactive)
eec82323
LMI
8476 (let ((data (gnus-data-list t))
8477 articles d children)
8478 ;; Find all articles that are either not dormant or have
8479 ;; children.
8480 (while (setq d (pop data))
8481 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8482 (and (setq children
8483 (gnus-article-children (gnus-data-number d)))
8484 (let (found)
8485 (while children
8486 (when (memq (car children) articles)
8487 (setq children nil
8488 found t))
8489 (pop children))
8490 found)))
8491 (push (gnus-data-number d) articles)))
8492 ;; Do the limiting.
8493 (prog1
8494 (gnus-summary-limit articles)
8495 (gnus-summary-position-point))))
8496
8497(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8498 "Mark all unread excluded articles as read.
8499If ALL, mark even excluded ticked and dormants as read."
8500 (interactive "P")
23f87bed
MB
8501 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8502 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8503 (sort
8504 (mapcar (lambda (h) (mail-header-number h))
8505 gnus-newsgroup-headers)
8506 '<)
23f87bed 8507 gnus-newsgroup-limit))
eec82323 8508 article)
6748645f 8509 (setq gnus-newsgroup-unreads
23f87bed
MB
8510 (gnus-sorted-intersection gnus-newsgroup-unreads
8511 gnus-newsgroup-limit))
eec82323
LMI
8512 (if all
8513 (setq gnus-newsgroup-dormant nil
8514 gnus-newsgroup-marked nil
8515 gnus-newsgroup-reads
8516 (nconc
8517 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8518 gnus-newsgroup-reads))
8519 (while (setq article (pop articles))
8520 (unless (or (memq article gnus-newsgroup-dormant)
8521 (memq article gnus-newsgroup-marked))
8522 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8523
8524(defun gnus-summary-limit (articles &optional pop)
8525 (if pop
8526 ;; We pop the previous limit off the stack and use that.
8527 (setq articles (car gnus-newsgroup-limits)
8528 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8529 ;; We use the new limit, so we push the old limit on the stack.
8530 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8531 ;; Set the limit.
8532 (setq gnus-newsgroup-limit articles)
8533 (let ((total (length gnus-newsgroup-data))
8534 (data (gnus-data-find-list (gnus-summary-article-number)))
8535 (gnus-summary-mark-below nil) ; Inhibit this.
8536 found)
8537 ;; This will do all the work of generating the new summary buffer
8538 ;; according to the new limit.
8539 (gnus-summary-prepare)
8540 ;; Hide any threads, possibly.
23f87bed 8541 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8542 ;; Try to return to the article you were at, or one in the
8543 ;; neighborhood.
8544 (when data
8545 ;; We try to find some article after the current one.
8546 (while data
8547 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8548 (setq data nil
8549 found t))
8550 (setq data (cdr data))))
8551 (unless found
8552 ;; If there is no data, that means that we were after the last
8553 ;; article. The same goes when we can't find any articles
8554 ;; after the current one.
8555 (goto-char (point-max))
8556 (gnus-summary-find-prev))
6748645f 8557 (gnus-set-mode-line 'summary)
eec82323
LMI
8558 ;; We return how many articles were removed from the summary
8559 ;; buffer as a result of the new limit.
8560 (- total (length gnus-newsgroup-data))))
8561
8562(defsubst gnus-invisible-cut-children (threads)
8563 (let ((num 0))
8564 (while threads
8565 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8566 (incf num))
8567 (pop threads))
8568 (< num 2)))
8569
8570(defsubst gnus-cut-thread (thread)
8571 "Go forwards in the thread until we find an article that we want to display."
8572 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8573 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8574 (numberp gnus-fetch-old-headers)
eec82323
LMI
8575 (eq gnus-build-sparse-threads 'some)
8576 (eq gnus-build-sparse-threads 'more))
8577 ;; Deal with old-fetched headers and sparse threads.
8578 (while (and
8579 thread
8580 (or
8581 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8582 (gnus-summary-article-ancient-p
8583 (mail-header-number (car thread))))
6748645f
LMI
8584 (if (or (<= (length (cdr thread)) 1)
8585 (eq gnus-fetch-old-headers 'invisible))
8586 (setq gnus-newsgroup-limit
8587 (delq (mail-header-number (car thread))
8588 gnus-newsgroup-limit)
8589 thread (cadr thread))
8590 (when (gnus-invisible-cut-children (cdr thread))
8591 (let ((th (cdr thread)))
8592 (while th
8593 (if (memq (mail-header-number (caar th))
a8151ef7 8594 gnus-newsgroup-limit)
6748645f
LMI
8595 (setq thread (car th)
8596 th nil)
8597 (setq th (cdr th))))))))))
eec82323
LMI
8598 thread)
8599
8600(defun gnus-cut-threads (threads)
23f87bed 8601 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8602 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8603 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8604 (numberp gnus-fetch-old-headers)
eec82323
LMI
8605 (eq gnus-build-sparse-threads 'some)
8606 (eq gnus-build-sparse-threads 'more))
8607 (let ((th threads))
8608 (while th
8609 (setcar th (gnus-cut-thread (car th)))
8610 (setq th (cdr th)))))
8611 ;; Remove nixed out threads.
8612 (delq nil threads))
8613
8614(defun gnus-summary-initial-limit (&optional show-if-empty)
8615 "Figure out what the initial limit is supposed to be on group entry.
8616This entails weeding out unwanted dormants, low-scored articles,
8617fetch-old-headers verbiage, and so on."
8618 ;; Most groups have nothing to remove.
f394fa25
MB
8619 (unless (or gnus-inhibit-limiting
8620 (and (null gnus-newsgroup-dormant)
8621 (eq gnus-newsgroup-display 'gnus-not-ignore)
8622 (not (eq gnus-fetch-old-headers 'some))
8623 (not (numberp gnus-fetch-old-headers))
8624 (not (eq gnus-fetch-old-headers 'invisible))
8625 (null gnus-summary-expunge-below)
8626 (not (eq gnus-build-sparse-threads 'some))
8627 (not (eq gnus-build-sparse-threads 'more))
8628 (null gnus-thread-expunge-below)
8629 (not gnus-use-nocem)))
eec82323
LMI
8630 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8631 (setq gnus-newsgroup-limit nil)
8632 (mapatoms
8633 (lambda (node)
8634 (unless (car (symbol-value node))
8635 ;; These threads have no parents -- they are roots.
8636 (let ((nodes (cdr (symbol-value node)))
8637 thread)
8638 (while nodes
8639 (if (and gnus-thread-expunge-below
8640 (< (gnus-thread-total-score (car nodes))
8641 gnus-thread-expunge-below))
8642 (gnus-expunge-thread (pop nodes))
8643 (setq thread (pop nodes))
8644 (gnus-summary-limit-children thread))))))
8645 gnus-newsgroup-dependencies)
8646 ;; If this limitation resulted in an empty group, we might
8647 ;; pop the previous limit and use it instead.
8648 (when (and (not gnus-newsgroup-limit)
8649 show-if-empty)
8650 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8651 gnus-newsgroup-limit))
8652
8653(defun gnus-summary-limit-children (thread)
8654 "Return 1 if this subthread is visible and 0 if it is not."
8655 ;; First we get the number of visible children to this thread. This
8656 ;; is done by recursing down the thread using this function, so this
8657 ;; will really go down to a leaf article first, before slowly
8658 ;; working its way up towards the root.
8659 (when thread
04b61ae9 8660 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8661 (children
eec82323
LMI
8662 (if (cdr thread)
8663 (apply '+ (mapcar 'gnus-summary-limit-children
8664 (cdr thread)))
8665 0))
8666 (number (mail-header-number (car thread)))
8667 score)
8668 (if (and
8669 (not (memq number gnus-newsgroup-marked))
8670 (or
8671 ;; If this article is dormant and has absolutely no visible
8672 ;; children, then this article isn't visible.
8673 (and (memq number gnus-newsgroup-dormant)
8674 (zerop children))
8675 ;; If this is "fetch-old-headered" and there is no
8676 ;; visible children, then we don't want this article.
16409b0b
GM
8677 (and (or (eq gnus-fetch-old-headers 'some)
8678 (numberp gnus-fetch-old-headers))
eec82323
LMI
8679 (gnus-summary-article-ancient-p number)
8680 (zerop children))
6748645f
LMI
8681 ;; If this is "fetch-old-headered" and `invisible', then
8682 ;; we don't want this article.
8683 (and (eq gnus-fetch-old-headers 'invisible)
8684 (gnus-summary-article-ancient-p number))
eec82323
LMI
8685 ;; If this is a sparsely inserted article with no children,
8686 ;; we don't want it.
8687 (and (eq gnus-build-sparse-threads 'some)
8688 (gnus-summary-article-sparse-p number)
8689 (zerop children))
8690 ;; If we use expunging, and this article is really
8691 ;; low-scored, then we don't want this article.
8692 (when (and gnus-summary-expunge-below
8693 (< (setq score
8694 (or (cdr (assq number gnus-newsgroup-scored))
8695 gnus-summary-default-score))
8696 gnus-summary-expunge-below))
8697 ;; We increase the expunge-tally here, but that has
8698 ;; nothing to do with the limits, really.
8699 (incf gnus-newsgroup-expunged-tally)
8700 ;; We also mark as read here, if that's wanted.
8701 (when (and gnus-summary-mark-below
8702 (< score gnus-summary-mark-below))
8703 (setq gnus-newsgroup-unreads
8704 (delq number gnus-newsgroup-unreads))
8705 (if gnus-newsgroup-auto-expire
8706 (push number gnus-newsgroup-expirable)
8707 (push (cons number gnus-low-score-mark)
8708 gnus-newsgroup-reads)))
8709 t)
23f87bed
MB
8710 ;; Do the `display' group parameter.
8711 (and gnus-newsgroup-display
8712 (not (funcall gnus-newsgroup-display)))
eec82323 8713 ;; Check NoCeM things.
01c52d31
MB
8714 (when (and gnus-use-nocem
8715 (gnus-nocem-unwanted-article-p
8716 (mail-header-id (car thread))))
8717 (setq gnus-newsgroup-unreads
8718 (delq number gnus-newsgroup-unreads))
8719 t)))
eec82323
LMI
8720 ;; Nope, invisible article.
8721 0
8722 ;; Ok, this article is to be visible, so we add it to the limit
8723 ;; and return 1.
8724 (push number gnus-newsgroup-limit)
8725 1))))
8726
8727(defun gnus-expunge-thread (thread)
8728 "Mark all articles in THREAD as read."
8729 (let* ((number (mail-header-number (car thread))))
8730 (incf gnus-newsgroup-expunged-tally)
8731 ;; We also mark as read here, if that's wanted.
8732 (setq gnus-newsgroup-unreads
8733 (delq number gnus-newsgroup-unreads))
8734 (if gnus-newsgroup-auto-expire
8735 (push number gnus-newsgroup-expirable)
8736 (push (cons number gnus-low-score-mark)
8737 gnus-newsgroup-reads)))
8738 ;; Go recursively through all subthreads.
8739 (mapcar 'gnus-expunge-thread (cdr thread)))
8740
8741;; Summary article oriented commands
8742
8743(defun gnus-summary-refer-parent-article (n)
8744 "Refer parent article N times.
8745If N is negative, go to ancestor -N instead.
8746The difference between N and the number of articles fetched is returned."
8747 (interactive "p")
eec82323
LMI
8748 (let ((skip 1)
8749 error header ref)
8750 (when (not (natnump n))
8751 (setq skip (abs n)
8752 n 1))
8753 (while (and (> n 0)
8754 (not error))
8755 (setq header (gnus-summary-article-header))
8756 (if (and (eq (mail-header-number header)
8757 (cdr gnus-article-current))
8758 (equal gnus-newsgroup-name
8759 (car gnus-article-current)))
8760 ;; If we try to find the parent of the currently
8761 ;; displayed article, then we take a look at the actual
8762 ;; References header, since this is slightly more
8763 ;; reliable than the References field we got from the
8764 ;; server.
c7a91ce1 8765 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8766 (nnheader-narrow-to-headers)
8767 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8768 (when (setq ref (message-fetch-field "in-reply-to"))
8769 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8770 (widen))
8771 (setq ref
8772 ;; It's not the current article, so we take a bet on
8773 ;; the value we got from the server.
8774 (mail-header-references header)))
8775 (if (and ref
8776 (not (equal ref "")))
8777 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8778 (gnus-message 1 "Couldn't find parent"))
8779 (gnus-message 1 "No references in article %d"
8780 (gnus-summary-article-number))
8781 (setq error t))
8782 (decf n))
8783 (gnus-summary-position-point)
8784 n))
8785
8786(defun gnus-summary-refer-references ()
8787 "Fetch all articles mentioned in the References header.
6748645f 8788Return the number of articles fetched."
eec82323 8789 (interactive)
eec82323
LMI
8790 (let ((ref (mail-header-references (gnus-summary-article-header)))
8791 (current (gnus-summary-article-number))
8792 (n 0))
8793 (if (or (not ref)
8794 (equal ref ""))
8795 (error "No References in the current article")
8796 ;; For each Message-ID in the References header...
8797 (while (string-match "<[^>]*>" ref)
8798 (incf n)
8799 ;; ... fetch that article.
8800 (gnus-summary-refer-article
8801 (prog1 (match-string 0 ref)
8802 (setq ref (substring ref (match-end 0))))))
8803 (gnus-summary-goto-subject current)
8804 (gnus-summary-position-point)
8805 n)))
8806
6748645f
LMI
8807(defun gnus-summary-refer-thread (&optional limit)
8808 "Fetch all articles in the current thread.
8809If LIMIT (the numerical prefix), fetch that many old headers instead
8810of what's specified by the `gnus-refer-thread-limit' variable."
8811 (interactive "P")
8812 (let ((id (mail-header-id (gnus-summary-article-header)))
8813 (limit (if limit (prefix-numeric-value limit)
8814 gnus-refer-thread-limit)))
6748645f
LMI
8815 (unless (eq gnus-fetch-old-headers 'invisible)
8816 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8817 ;; Retrieve the headers and read them in.
23f87bed
MB
8818 (if (eq (if (numberp limit)
8819 (gnus-retrieve-headers
8820 (list (min
8821 (+ (mail-header-number
8822 (gnus-summary-article-header))
8823 limit)
8824 gnus-newsgroup-end))
8825 gnus-newsgroup-name (* limit 2))
8826 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8827 ;; headers.
8828 (gnus-retrieve-headers (list gnus-newsgroup-end)
8829 gnus-newsgroup-name limit))
6748645f
LMI
8830 'nov)
8831 (gnus-build-all-threads)
23f87bed 8832 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8833 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8834 (gnus-summary-limit-include-thread id)))
8835
16409b0b
GM
8836(defun gnus-summary-refer-article (message-id)
8837 "Fetch an article specified by MESSAGE-ID."
8838 (interactive "sMessage-ID: ")
eec82323
LMI
8839 (when (and (stringp message-id)
8840 (not (zerop (length message-id))))
23f87bed 8841 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8842 ;; Construct the correct Message-ID if necessary.
8843 ;; Suggested by tale@pawl.rpi.edu.
8844 (unless (string-match "^<" message-id)
8845 (setq message-id (concat "<" message-id)))
8846 (unless (string-match ">$" message-id)
8847 (setq message-id (concat message-id ">")))
23f87bed
MB
8848 ;; People often post MIDs from URLs, so unhex it:
8849 (unless (string-match "@" message-id)
8850 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8851 (let* ((header (gnus-id-to-header message-id))
8852 (sparse (and header
8853 (gnus-summary-article-sparse-p
a8151ef7
LMI
8854 (mail-header-number header))
8855 (memq (mail-header-number header)
16409b0b
GM
8856 gnus-newsgroup-limit)))
8857 number)
6748645f
LMI
8858 (cond
8859 ;; If the article is present in the buffer we just go to it.
8860 ((and header
8861 (or (not (gnus-summary-article-sparse-p
8862 (mail-header-number header)))
8863 sparse))
8864 (prog1
8865 (gnus-summary-goto-article
8866 (mail-header-number header) nil t)
8867 (when sparse
8868 (gnus-summary-update-article (mail-header-number header)))))
8869 (t
16409b0b
GM
8870 ;; We fetch the article.
8871 (catch 'found
8872 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8873 (when (and (gnus-check-server gnus-override-method)
8874 ;; Fetch the header,
8875 (setq number (gnus-summary-insert-subject message-id)))
8876 ;; and display the article.
eec82323 8877 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8878 (throw 'found t)))
8879 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8880
8881(defun gnus-refer-article-methods ()
8f688cb0 8882 "Return a list of referable methods."
16409b0b
GM
8883 (cond
8884 ;; No method, so we default to current and native.
8885 ((null gnus-refer-article-method)
8886 (list gnus-current-select-method gnus-select-method))
8887 ;; Current.
8888 ((eq 'current gnus-refer-article-method)
8889 (list gnus-current-select-method))
8890 ;; List of select methods.
d4dfaa19
DL
8891 ((not (and (symbolp (car gnus-refer-article-method))
8892 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8893 (let (out)
8894 (dolist (method gnus-refer-article-method)
8895 (push (if (eq 'current method)
8896 gnus-current-select-method
8897 method)
8898 out))
8899 (nreverse out)))
8900 ;; One single select method.
8901 (t
8902 (list gnus-refer-article-method))))
6748645f
LMI
8903
8904(defun gnus-summary-edit-parameters ()
8905 "Edit the group parameters of the current group."
8906 (interactive)
8907 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8908
16409b0b
GM
8909(defun gnus-summary-customize-parameters ()
8910 "Customize the group parameters of the current group."
8911 (interactive)
8912 (gnus-group-customize gnus-newsgroup-name))
8913
eec82323
LMI
8914(defun gnus-summary-enter-digest-group (&optional force)
8915 "Enter an nndoc group based on the current article.
8916If FORCE, force a digest interpretation. If not, try
8917to guess what the document format is."
8918 (interactive "P")
eec82323 8919 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8920 (save-window-excursion
8921 (save-excursion
8922 (let (gnus-article-prepare-hook
8923 gnus-display-mime-function
8924 gnus-break-pages)
8925 (gnus-summary-select-article))))
eec82323
LMI
8926 (setq gnus-current-window-configuration conf)
8927 (let* ((name (format "%s-%d"
8928 (gnus-group-prefixed-name
8929 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8930 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8931 gnus-current-article)))
8932 (ogroup gnus-newsgroup-name)
8933 (params (append (gnus-info-params (gnus-get-info ogroup))
8934 (list (cons 'to-group ogroup))
23f87bed 8935 (list (cons 'parent-group ogroup))
eec82323
LMI
8936 (list (cons 'save-article-group ogroup))))
8937 (case-fold-search t)
8938 (buf (current-buffer))
16409b0b 8939 dig to-address)
c7a91ce1 8940 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8941 ;; Have the digest group inherit the main mail address of
8942 ;; the parent article.
23f87bed
MB
8943 (when (setq to-address (or (gnus-fetch-field "reply-to")
8944 (gnus-fetch-field "from")))
343d6628
MB
8945 (setq params
8946 (append
8947 (list (cons 'to-address
8948 (funcall gnus-decode-encoded-address-function
8949 to-address))))))
eec82323
LMI
8950 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8951 (insert-buffer-substring gnus-original-article-buffer)
8952 ;; Remove lines that may lead nndoc to misinterpret the
8953 ;; document type.
8954 (narrow-to-region
8955 (goto-char (point-min))
8956 (or (search-forward "\n\n" nil t) (point)))
8957 (goto-char (point-min))
16409b0b 8958 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8959 (widen))
8960 (unwind-protect
23f87bed 8961 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8962 (gnus-newsgroup-ephemeral-ignored-charsets
8963 gnus-newsgroup-ignored-charsets))
8964 (gnus-group-read-ephemeral-group
8965 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8966 (nndoc-article-type
23f87bed
MB
8967 ,(if force 'mbox 'guess)))
8968 t nil nil nil
8969 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8970 "ADAPT")))))
16409b0b 8971 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8972 (nconc (gnus-info-params (gnus-get-info name))
8973 params)
8974 ;; Couldn't select this doc group.
8975 (switch-to-buffer buf)
8976 (gnus-set-global-variables)
8977 (gnus-configure-windows 'summary)
8978 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8979 (kill-buffer dig)))))
8980
8981(defun gnus-summary-read-document (n)
8982 "Open a new group based on the current article(s).
8983This will allow you to read digests and other similar
8984documents as newsgroups.
8985Obeys the standard process/prefix convention."
8986 (interactive "P")
01c52d31 8987 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
8988 (params (append (gnus-info-params (gnus-get-info ogroup))
8989 (list (cons 'to-group ogroup))))
01c52d31
MB
8990 group egroup groups vgroup)
8991 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
8992 (setq group (format "%s-%d" gnus-newsgroup-name article))
8993 (gnus-summary-remove-process-mark article)
8994 (when (gnus-summary-display-article article)
8995 (save-excursion
16409b0b 8996 (with-temp-buffer
eec82323
LMI
8997 (insert-buffer-substring gnus-original-article-buffer)
8998 ;; Remove some headers that may lead nndoc to make
8999 ;; the wrong guess.
9000 (message-narrow-to-head)
9001 (goto-char (point-min))
01c52d31 9002 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9003 (widen)
9004 (if (setq egroup
9005 (gnus-group-read-ephemeral-group
9006 group `(nndoc ,group (nndoc-address ,(current-buffer))
9007 (nndoc-article-type guess))
9008 t nil t))
9009 (progn
c7a91ce1 9010 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9011 (nconc (gnus-info-params (gnus-get-info egroup))
9012 params)
9013 (push egroup groups))
9014 ;; Couldn't select this doc group.
9015 (gnus-error 3 "Article couldn't be entered"))))))
9016 ;; Now we have selected all the documents.
9017 (cond
9018 ((not groups)
9019 (error "None of the articles could be interpreted as documents"))
9020 ((gnus-group-read-ephemeral-group
9021 (setq vgroup (format
9022 "nnvirtual:%s-%s" gnus-newsgroup-name
9023 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9024 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9025 t
9026 (cons (current-buffer) 'summary)))
9027 (t
9028 (error "Couldn't select virtual nndoc group")))))
9029
9030(defun gnus-summary-isearch-article (&optional regexp-p)
9031 "Do incremental search forward on the current article.
9032If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9033 (interactive "P")
eec82323
LMI
9034 (gnus-summary-select-article)
9035 (gnus-configure-windows 'article)
9036 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9037 (save-restriction
9038 (widen)
9039 (isearch-forward regexp-p))))
eec82323 9040
01c52d31
MB
9041(defun gnus-summary-repeat-search-article-forward ()
9042 "Repeat the previous search forwards."
9043 (interactive)
9044 (unless gnus-last-search-regexp
9045 (error "No previous search"))
9046 (gnus-summary-search-article-forward gnus-last-search-regexp))
9047
9048(defun gnus-summary-repeat-search-article-backward ()
9049 "Repeat the previous search backwards."
9050 (interactive)
9051 (unless gnus-last-search-regexp
9052 (error "No previous search"))
9053 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9054
eec82323
LMI
9055(defun gnus-summary-search-article-forward (regexp &optional backward)
9056 "Search for an article containing REGEXP forward.
9057If BACKWARD, search backward instead."
9058 (interactive
9059 (list (read-string
9060 (format "Search article %s (regexp%s): "
9061 (if current-prefix-arg "backward" "forward")
9062 (if gnus-last-search-regexp
9063 (concat ", default " gnus-last-search-regexp)
9064 "")))
9065 current-prefix-arg))
eec82323
LMI
9066 (if (string-equal regexp "")
9067 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9068 (setq gnus-last-search-regexp regexp)
9069 (setq gnus-article-before-search gnus-current-article))
9070 ;; Intentionally set gnus-last-article.
9071 (setq gnus-last-article gnus-article-before-search)
9072 (let ((gnus-last-article gnus-last-article))
9073 (if (gnus-summary-search-article regexp backward)
9074 (gnus-summary-show-thread)
abc40aab 9075 (signal 'search-failed (list regexp)))))
eec82323
LMI
9076
9077(defun gnus-summary-search-article-backward (regexp)
9078 "Search for an article containing REGEXP backward."
9079 (interactive
9080 (list (read-string
9081 (format "Search article backward (regexp%s): "
9082 (if gnus-last-search-regexp
9083 (concat ", default " gnus-last-search-regexp)
9084 "")))))
9085 (gnus-summary-search-article-forward regexp 'backward))
9086
9087(defun gnus-summary-search-article (regexp &optional backward)
9088 "Search for an article containing REGEXP.
9089Optional argument BACKWARD means do search for backward.
9090`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9091 ;; We have to require this here to make sure that the following
9092 ;; dynamic binding isn't shadowed by autoloading.
9093 (require 'gnus-async)
16409b0b 9094 (require 'gnus-art)
eec82323 9095 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9096 (gnus-article-prepare-hook nil)
eec82323
LMI
9097 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9098 (gnus-use-article-prefetch nil)
9099 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9100 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9101 (gnus-visual nil)
9102 (gnus-keep-backlog nil)
9103 (gnus-break-pages nil)
9104 (gnus-summary-display-arrow nil)
9105 (gnus-updated-mode-lines nil)
9106 (gnus-auto-center-summary nil)
eec82323 9107 (sum (current-buffer))
16409b0b 9108 (gnus-display-mime-function nil)
eec82323
LMI
9109 (found nil)
9110 point)
9111 (gnus-save-hidden-threads
9112 (gnus-summary-select-article)
9113 (set-buffer gnus-article-buffer)
16409b0b 9114 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9115 (when backward
9116 (forward-line -1))
9117 (while (not found)
9118 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9119 (if (if backward
9120 (re-search-backward regexp nil t)
9121 (re-search-forward regexp nil t))
9122 ;; We found the regexp.
9123 (progn
9124 (setq found 'found)
9125 (beginning-of-line)
9126 (set-window-start
9127 (get-buffer-window (current-buffer))
9128 (point))
9129 (forward-line 1)
16409b0b
GM
9130 (set-window-point
9131 (get-buffer-window (current-buffer))
9132 (point))
eec82323
LMI
9133 (set-buffer sum)
9134 (setq point (point)))
9135 ;; We didn't find it, so we go to the next article.
9136 (set-buffer sum)
9137 (setq found 'not)
9138 (while (eq found 'not)
9139 (if (not (if backward (gnus-summary-find-prev)
9140 (gnus-summary-find-next)))
9141 ;; No more articles.
9142 (setq found t)
9143 ;; Select the next article and adjust point.
9144 (unless (gnus-summary-article-sparse-p
9145 (gnus-summary-article-number))
9146 (setq found nil)
9147 (gnus-summary-select-article)
9148 (set-buffer gnus-article-buffer)
9149 (widen)
9150 (goto-char (if backward (point-max) (point-min))))))))
9151 (gnus-message 7 ""))
9152 ;; Return whether we found the regexp.
9153 (when (eq found 'found)
9154 (goto-char point)
9155 (gnus-summary-show-thread)
9156 (gnus-summary-goto-subject gnus-current-article)
9157 (gnus-summary-position-point)
9158 t)))
9159
23f87bed
MB
9160(defun gnus-find-matching-articles (header regexp)
9161 "Return a list of all articles that match REGEXP on HEADER.
9162This search includes all articles in the current group that Gnus has
9163fetched headers for, whether they are displayed or not."
9164 (let ((articles nil)
c7a91ce1 9165 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9166 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9167 (case-fold-search t))
9168 (dolist (header gnus-newsgroup-headers)
9169 (when (string-match regexp (funcall func header))
9170 (push (mail-header-number header) articles)))
9171 (nreverse articles)))
9172
eec82323 9173(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9174 not-case-fold not-matching)
eec82323
LMI
9175 "Return a list of all articles that match REGEXP on HEADER.
9176The search stars on the current article and goes forwards unless
9177BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9178If UNREAD is non-nil, only unread articles will
9179be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9180in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9181not match REGEXP on HEADER."
9182 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9183 articles d func)
9184 (if (consp header)
9185 (if (eq (car header) 'extra)
9186 (setq func
9187 `(lambda (h)
9188 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9189 "")))
9190 (error "%s is an invalid header" header))
9191 (unless (fboundp (intern (concat "mail-header-" header)))
9192 (error "%s is not a valid header" header))
9193 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9194 (dolist (d (if (eq backward 'all)
9195 gnus-newsgroup-data
9196 (gnus-data-find-list
9197 (gnus-summary-article-number)
9198 (gnus-data-list backward))))
9199 (when (and (or (not unread) ; We want all articles...
9200 (gnus-data-unread-p d)) ; Or just unreads.
9201 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9202 (if not-matching
a1506d29 9203 (not (string-match
47b63dfa
SZ
9204 regexp
9205 (funcall func (gnus-data-header d))))
9206 (string-match regexp
9207 (funcall func (gnus-data-header d)))))
9208 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9209 (nreverse articles)))
9210
9211(defun gnus-summary-execute-command (header regexp command &optional backward)
9212 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9213If HEADER is an empty string (or nil), the match is done on the entire
9214article. If BACKWARD (the prefix) is non-nil, search backward instead."
9215 (interactive
9216 (list (let ((completion-ignore-case t))
9217 (completing-read
9218 "Header name: "
23f87bed
MB
9219 (mapcar (lambda (header) (list (format "%s" header)))
9220 (append
9221 '("Number" "Subject" "From" "Lines" "Date"
9222 "Message-ID" "Xref" "References" "Body")
9223 gnus-extra-headers))
eec82323
LMI
9224 nil 'require-match))
9225 (read-string "Regexp: ")
9226 (read-key-sequence "Command: ")
9227 current-prefix-arg))
9228 (when (equal header "Body")
9229 (setq header ""))
eec82323
LMI
9230 ;; Hidden thread subtrees must be searched as well.
9231 (gnus-summary-show-all-threads)
9232 ;; We don't want to change current point nor window configuration.
9233 (save-excursion
9234 (save-window-excursion
23f87bed
MB
9235 (let (gnus-visual
9236 gnus-treat-strip-trailing-blank-lines
9237 gnus-treat-strip-leading-blank-lines
9238 gnus-treat-strip-multiple-blank-lines
9239 gnus-treat-hide-boring-headers
9240 gnus-treat-fold-newsgroups
9241 gnus-article-prepare-hook)
9242 (gnus-message 6 "Executing %s..." (key-description command))
9243 ;; We'd like to execute COMMAND interactively so as to give arguments.
9244 (gnus-execute header regexp
9245 `(call-interactively ',(key-binding command))
9246 backward)
9247 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9248
9249(defun gnus-summary-beginning-of-article ()
9250 "Scroll the article back to the beginning."
9251 (interactive)
eec82323
LMI
9252 (gnus-summary-select-article)
9253 (gnus-configure-windows 'article)
9254 (gnus-eval-in-buffer-window gnus-article-buffer
9255 (widen)
9256 (goto-char (point-min))
23f87bed 9257 (when gnus-break-pages
eec82323
LMI
9258 (gnus-narrow-to-page))))
9259
9260(defun gnus-summary-end-of-article ()
9261 "Scroll to the end of the article."
9262 (interactive)
eec82323
LMI
9263 (gnus-summary-select-article)
9264 (gnus-configure-windows 'article)
9265 (gnus-eval-in-buffer-window gnus-article-buffer
9266 (widen)
9267 (goto-char (point-max))
9268 (recenter -3)
23f87bed 9269 (when gnus-break-pages
eec82323
LMI
9270 (gnus-narrow-to-page))))
9271
23f87bed
MB
9272(defun gnus-summary-print-truncate-and-quote (string &optional len)
9273 "Truncate to LEN and quote all \"(\"'s in STRING."
9274 (gnus-replace-in-string (if (and len (> (length string) len))
9275 (substring string 0 len)
9276 string)
9277 "[()]" "\\\\\\&"))
9278
6748645f 9279(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9280 "Generate and print a PostScript image of the process-marked (mail) articles.
9281
9282If used interactively, print the current article if none are
9283process-marked. With prefix arg, prompt the user for the name of the
9284file to save in.
6748645f 9285
23f87bed
MB
9286When used from Lisp, accept two optional args FILENAME and N. N means
9287to print the next N articles. If N is negative, print the N previous
9288articles. If N is nil and articles have been marked with the process
9289mark, print these instead.
eec82323 9290
16409b0b 9291If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9292printer. If FILENAME is a string, save the PostScript image in a file with
9293that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9294to save in."
676a7cc9 9295 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9296 (dolist (article (gnus-summary-work-articles n))
9297 (gnus-summary-select-article nil nil 'pseudo article)
9298 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9299 (gnus-print-buffer))
676a7cc9
SZ
9300 (gnus-summary-remove-process-mark article))
9301 (ps-despool filename))
eec82323 9302
23f87bed
MB
9303(defun gnus-print-buffer ()
9304 (let ((buffer (generate-new-buffer " *print*")))
9305 (unwind-protect
9306 (progn
9307 (copy-to-buffer buffer (point-min) (point-max))
9308 (set-buffer buffer)
9309 (gnus-remove-text-with-property 'gnus-decoration)
9310 (when (gnus-visual-p 'article-highlight 'highlight)
9311 ;; Copy-to-buffer doesn't copy overlay. So redo
9312 ;; highlight.
9313 (let ((gnus-article-buffer buffer))
9314 (gnus-article-highlight-citation t)
9315 (gnus-article-highlight-signature)
9316 (gnus-article-emphasize)
9317 (gnus-article-delete-invisible-text)))
9318 (let ((ps-left-header
9319 (list
9320 (concat "("
9321 (gnus-summary-print-truncate-and-quote
9322 (mail-header-subject gnus-current-headers)
9323 66) ")")
9324 (concat "("
9325 (gnus-summary-print-truncate-and-quote
9326 (mail-header-from gnus-current-headers)
9327 45) ")")))
9328 (ps-right-header
9329 (list
9330 "/pagenumberstring load"
9331 (concat "("
9332 (mail-header-date gnus-current-headers) ")"))))
9333 (gnus-run-hooks 'gnus-ps-print-hook)
9334 (save-excursion
a7b50e1c 9335 (if ps-print-color-p
23f87bed
MB
9336 (ps-spool-buffer-with-faces)
9337 (ps-spool-buffer)))))
9338 (kill-buffer buffer))))
9339
eec82323 9340(defun gnus-summary-show-article (&optional arg)
23f87bed 9341 "Force redisplaying of the current article.
16409b0b
GM
9342If ARG (the prefix) is a number, show the article with the charset
9343defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9344input.
16409b0b 9345If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9346without any article massaging functions being run. Normally, the key
9347strokes are `C-u g'."
eec82323 9348 (interactive "P")
16409b0b
GM
9349 (cond
9350 ((numberp arg)
23f87bed 9351 (gnus-summary-show-article t)
16409b0b
GM
9352 (let ((gnus-newsgroup-charset
9353 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9354 (mm-read-coding-system
9355 "View as charset: " ;; actually it is coding system.
01c52d31 9356 (with-current-buffer gnus-article-buffer
23f87bed 9357 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9358 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9359 (gnus-summary-select-article nil 'force)
9360 (let ((deps gnus-newsgroup-dependencies)
9361 head header lines)
c7a91ce1 9362 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9363 (save-restriction
9364 (message-narrow-to-head)
9365 (setq head (buffer-string))
9366 (goto-char (point-min))
9367 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9368 (goto-char (point-max))
9369 (widen)
9370 (setq lines (1- (count-lines (point) (point-max))))))
9371 (with-temp-buffer
9372 (insert (format "211 %d Article retrieved.\n"
9373 (cdr gnus-article-current)))
9374 (insert head)
9375 (if lines (insert (format "Lines: %d\n" lines)))
9376 (insert ".\n")
9377 (let ((nntp-server-buffer (current-buffer)))
9378 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9379 (gnus-data-set-header
9380 (gnus-data-find (cdr gnus-article-current))
9381 header)
9382 (gnus-summary-update-article-line
9383 (cdr gnus-article-current) header)
9384 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9385 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9386 ((not arg)
9387 ;; Select the article the normal way.
9388 (gnus-summary-select-article nil 'force))
9389 (t
9390 ;; We have to require this here to make sure that the following
9391 ;; dynamic binding isn't shadowed by autoloading.
9392 (require 'gnus-async)
9393 (require 'gnus-art)
eec82323
LMI
9394 ;; Bind the article treatment functions to nil.
9395 (let ((gnus-have-all-headers t)
eec82323 9396 gnus-article-prepare-hook
16409b0b
GM
9397 gnus-article-decode-hook
9398 gnus-display-mime-function
9399 gnus-break-pages)
9400 ;; Destroy any MIME parts.
9401 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9402 (with-current-buffer gnus-article-buffer
16409b0b
GM
9403 (mm-destroy-parts gnus-article-mime-handles)
9404 ;; Set it to nil for safety reason.
9405 (setq gnus-article-mime-handle-alist nil)
9406 (setq gnus-article-mime-handles nil)))
9407 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9408 (gnus-summary-goto-subject gnus-current-article)
9409 (gnus-summary-position-point))
9410
23f87bed
MB
9411(defun gnus-summary-show-raw-article ()
9412 "Show the raw article without any article massaging functions being run."
9413 (interactive)
9414 (gnus-summary-show-article t))
9415
eec82323
LMI
9416(defun gnus-summary-verbose-headers (&optional arg)
9417 "Toggle permanent full header display.
9418If ARG is a positive number, turn header display on.
9419If ARG is a negative number, turn header display off."
9420 (interactive "P")
eec82323
LMI
9421 (setq gnus-show-all-headers
9422 (cond ((or (not (numberp arg))
9423 (zerop arg))
9424 (not gnus-show-all-headers))
9425 ((natnump arg)
9426 t)))
9427 (gnus-summary-show-article))
9428
9429(defun gnus-summary-toggle-header (&optional arg)
9430 "Show the headers if they are hidden, or hide them if they are shown.
9431If ARG is a positive number, show the entire header.
9432If ARG is a negative number, hide the unwanted header lines."
9433 (interactive "P")
23f87bed
MB
9434 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9435 (get-buffer-window gnus-article-buffer t))))
9436 (with-current-buffer gnus-article-buffer
9437 (widen)
9438 (article-narrow-to-head)
c7a91ce1 9439 (let* ((inhibit-read-only t)
16409b0b 9440 (inhibit-point-motion-hooks t)
23f87bed
MB
9441 (hidden (if (numberp arg)
9442 (>= arg 0)
f0096211
MB
9443 (or (not (looking-at "[^ \t\n]+:"))
9444 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9445 s e)
9446 (delete-region (point-min) (point-max))
667e0ba6
SM
9447 (with-current-buffer gnus-original-article-buffer
9448 (goto-char (setq s (point-min)))
23f87bed
MB
9449 (setq e (if (search-forward "\n\n" nil t)
9450 (1- (point))
9451 (point-max))))
667e0ba6 9452 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9453 (run-hooks 'gnus-article-decode-hook)
9454 (if hidden
9455 (let ((gnus-treat-hide-headers nil)
9456 (gnus-treat-hide-boring-headers nil))
9457 (gnus-delete-wash-type 'headers)
9458 (gnus-treat-article 'head))
9459 (gnus-treat-article 'head))
9460 (widen)
9461 (if window
9462 (set-window-start window (goto-char (point-min))))
9463 (if gnus-break-pages
9464 (gnus-narrow-to-page)
9465 (when (gnus-visual-p 'page-marker)
c7a91ce1 9466 (let ((inhibit-read-only t))
23f87bed
MB
9467 (gnus-remove-text-with-property 'gnus-prev)
9468 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9469 (gnus-set-mode-line 'article)))))
eec82323
LMI
9470
9471(defun gnus-summary-show-all-headers ()
9472 "Make all header lines visible."
9473 (interactive)
23f87bed 9474 (gnus-summary-toggle-header 1))
eec82323 9475
eec82323
LMI
9476(defun gnus-summary-caesar-message (&optional arg)
9477 "Caesar rotate the current article by 13.
01c52d31
MB
9478With a non-numerical prefix, also rotate headers. A numerical
9479prefix specifies how many places to rotate each letter forward."
eec82323 9480 (interactive "P")
eec82323
LMI
9481 (gnus-summary-select-article)
9482 (let ((mail-header-separator ""))
9483 (gnus-eval-in-buffer-window gnus-article-buffer
9484 (save-restriction
9485 (widen)
9486 (let ((start (window-start))
c7a91ce1 9487 (inhibit-read-only t))
01c52d31
MB
9488 (if (equal arg '(4))
9489 (message-caesar-buffer-body nil t)
9490 (message-caesar-buffer-body arg))
ff4d3926
MB
9491 (set-window-start (get-buffer-window (current-buffer)) start)))))
9492 ;; Create buttons and stuff...
9493 (gnus-treat-article nil))
eec82323 9494
704f1663
GM
9495(declare-function idna-to-unicode "ext:idna" (str))
9496
01c52d31
MB
9497(defun gnus-summary-idna-message (&optional arg)
9498 "Decode IDNA encoded domain names in the current articles.
9499IDNA encoded domain names looks like `xn--bar'. If a string
9500remain unencoded after running this function, it is likely an
9501invalid IDNA string (`xn--bar' is invalid).
9502
9503You must have GNU Libidn (`http://www.gnu.org/software/libidn/')
9504installed for this command to work."
9505 (interactive "P")
9506 (if (not (and (condition-case nil (require 'idna)
9507 (file-error))
9508 (mm-coding-system-p 'utf-8)
9509 (executable-find (symbol-value 'idna-program))))
9510 (gnus-message
9511 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9512 (gnus-summary-select-article)
9513 (let ((mail-header-separator ""))
9514 (gnus-eval-in-buffer-window gnus-article-buffer
9515 (save-restriction
9516 (widen)
9517 (let ((start (window-start))
9518 buffer-read-only)
9519 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9520 (replace-match (idna-to-unicode (match-string 1))))
9521 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9522
9523(defun gnus-summary-morse-message (&optional arg)
9524 "Morse decode the current article."
9525 (interactive "P")
9526 (gnus-summary-select-article)
9527 (let ((mail-header-separator ""))
9528 (gnus-eval-in-buffer-window gnus-article-buffer
9529 (save-excursion
9530 (save-restriction
9531 (widen)
9532 (let ((pos (window-start))
c7a91ce1 9533 (inhibit-read-only t))
23f87bed
MB
9534 (goto-char (point-min))
9535 (when (message-goto-body)
9536 (gnus-narrow-to-body))
9537 (goto-char (point-min))
01c52d31 9538