HCoop / bpt / emacs.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
(modify_overlay): Don't do nothing if START == END;
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
CommitLineData
eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
676a7cc9 2;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
16409b0b 3;; Free Software Foundation, Inc.
eec82323 4
6748645f 5;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
eec82323
LMI		 6;; Keywords: news
7
8;; This file is part of GNU Emacs.
9
10;; GNU Emacs is free software; you can redistribute it and/or modify
11;; it under the terms of the GNU General Public License as published by
12;; the Free Software Foundation; either version 2, or (at your option)
13;; any later version.
14
15;; GNU Emacs is distributed in the hope that it will be useful,
16;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18;; GNU General Public License for more details.
19
20;; You should have received a copy of the GNU General Public License
21;; along with GNU Emacs; see the file COPYING. If not, write to the
22;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23;; Boston, MA 02111-1307, USA.
24
25;;; Commentary:
26
27;;; Code:
28
5ab7173c
RS		 29(eval-when-compile (require 'cl))
30
eec82323
LMI		 31(require 'gnus)
32(require 'gnus-group)
33(require 'gnus-spec)
34(require 'gnus-range)
35(require 'gnus-int)
36(require 'gnus-undo)
6748645f 37(require 'gnus-util)
16409b0b 38(require 'mm-decode)
08c9a385
DL		 39;; Recursive :-(.
40;; (require 'gnus-art)
41(require 'nnoo)
6748645f 42(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 43(autoload 'gnus-cache-write-active "gnus-cache")
08c9a385 44(autoload 'mm-uu-dissect "mm-uu")
eec82323
LMI		 45
46(defcustom gnus-kill-summary-on-exit t
47 "*If non-nil, kill the summary buffer when you exit from it.
48If nil, the summary will become a \"*Dead Summary*\" buffer, and
49it will be killed sometime later."
50 :group 'gnus-summary-exit
51 :type 'boolean)
52
53(defcustom gnus-fetch-old-headers nil
54 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
55If an unread article in the group refers to an older, already read (or
56just marked as read) article, the old article will not normally be
57displayed in the Summary buffer. If this variable is non-nil, Gnus
58will attempt to grab the headers to the old articles, and thereby
6748645f
LMI		 59build complete threads. If it has the value `some', only enough
60headers to connect otherwise loose threads will be displayed. This
61variable can also be a number. In that case, no more than that number
62of old headers will be fetched. If it has the value `invisible', all
63old headers will be fetched, but none will be displayed.
eec82323
LMI		 64
65The server has to support NOV for any of this to work."
66 :group 'gnus-thread
67 :type '(choice (const :tag "off" nil)
68 (const some)
69 number
70 (sexp :menu-tag "other" t)))
71
6748645f
LMI		 72(defcustom gnus-refer-thread-limit 200
73 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
74If t, fetch all the available old headers."
75 :group 'gnus-thread
76 :type '(choice number
77 (sexp :menu-tag "other" t)))
78
eec82323
LMI		 79(defcustom gnus-summary-make-false-root 'adopt
80 "*nil means that Gnus won't gather loose threads.
81If the root of a thread has expired or been read in a previous
82session, the information necessary to build a complete thread has been
83lost. Instead of having many small sub-threads from this original thread
84scattered all over the summary buffer, Gnus can gather them.
85
86If non-nil, Gnus will try to gather all loose sub-threads from an
87original thread into one large thread.
88
89If this variable is non-nil, it should be one of `none', `adopt',
90`dummy' or `empty'.
91
92If this variable is `none', Gnus will not make a false root, but just
93present the sub-threads after another.
94If this variable is `dummy', Gnus will create a dummy root that will
95have all the sub-threads as children.
96If this variable is `adopt', Gnus will make one of the \"children\"
97the parent and mark all the step-children as such.
98If this variable is `empty', the \"children\" are printed with empty
99subject fields. (Or rather, they will be printed with a string
100given by the `gnus-summary-same-subject' variable.)"
101 :group 'gnus-thread
102 :type '(choice (const :tag "off" nil)
103 (const none)
104 (const dummy)
105 (const adopt)
106 (const empty)))
107
108(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
109 "*A regexp to match subjects to be excluded from loose thread gathering.
110As loose thread gathering is done on subjects only, that means that
111there can be many false gatherings performed. By rooting out certain
112common subjects, gathering might become saner."
113 :group 'gnus-thread
114 :type 'regexp)
115
116(defcustom gnus-summary-gather-subject-limit nil
117 "*Maximum length of subject comparisons when gathering loose threads.
118Use nil to compare full subjects. Setting this variable to a low
119number will help gather threads that have been corrupted by
120newsreaders chopping off subject lines, but it might also mean that
121unrelated articles that have subject that happen to begin with the
122same few characters will be incorrectly gathered.
123
124If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
125comparing subjects."
126 :group 'gnus-thread
127 :type '(choice (const :tag "off" nil)
128 (const fuzzy)
129 (sexp :menu-tag "on" t)))
130
6748645f
LMI		 131(defcustom gnus-simplify-subject-functions nil
132 "List of functions taking a string argument that simplify subjects.
133The functions are applied recursively.
134
135Useful functions to put in this list include: `gnus-simplify-subject-re',
136`gnus-simplify-subject-fuzzy' and `gnus-simplify-whitespace'."
137 :group 'gnus-thread
138 :type '(repeat function))
139
eec82323
LMI		 140(defcustom gnus-simplify-ignored-prefixes nil
141 "*Regexp, matches for which are removed from subject lines when simplifying fuzzily."
142 :group 'gnus-thread
143 :type '(choice (const :tag "off" nil)
144 regexp))
145
146(defcustom gnus-build-sparse-threads nil
147 "*If non-nil, fill in the gaps in threads.
148If `some', only fill in the gaps that are needed to tie loose threads
149together. If `more', fill in all leaf nodes that Gnus can find. If
150non-nil and non-`some', fill in all gaps that Gnus manages to guess."
151 :group 'gnus-thread
152 :type '(choice (const :tag "off" nil)
153 (const some)
154 (const more)
155 (sexp :menu-tag "all" t)))
156
157(defcustom gnus-summary-thread-gathering-function
158 'gnus-gather-threads-by-subject
6748645f 159 "*Function used for gathering loose threads.
eec82323
LMI		 160There are two pre-defined functions: `gnus-gather-threads-by-subject',
161which only takes Subjects into consideration; and
162`gnus-gather-threads-by-references', which compared the References
163headers of the articles to find matches."
164 :group 'gnus-thread
22115a9e
RS		 165 :type '(radio (function-item gnus-gather-threads-by-subject)
166 (function-item gnus-gather-threads-by-references)
167 (function :tag "other")))
eec82323 168
eec82323
LMI		 169(defcustom gnus-summary-same-subject ""
170 "*String indicating that the current article has the same subject as the previous.
171This variable will only be used if the value of
172`gnus-summary-make-false-root' is `empty'."
173 :group 'gnus-summary-format
174 :type 'string)
175
176(defcustom gnus-summary-goto-unread t
16409b0b
GM		 177 "*If t, many commands will go to the next unread article.
178This applies to marking commands as well as other commands that
179\"naturally\" select the next article, like, for instance, `SPC' at
180the end of an article.
181
182If nil, the marking commands do NOT go to the next unread article
183(they go to the next article instead). If `never', commands that
184usually go to the next unread article, will go to the next article,
185whether it is read or not."
eec82323
LMI		 186 :group 'gnus-summary-marks
187 :link '(custom-manual "(gnus)Setting Marks")
188 :type '(choice (const :tag "off" nil)
189 (const never)
190 (sexp :menu-tag "on" t)))
191
192(defcustom gnus-summary-default-score 0
193 "*Default article score level.
194All scores generated by the score files will be added to this score.
195If this variable is nil, scoring will be disabled."
196 :group 'gnus-score-default
197 :type '(choice (const :tag "disable")
198 integer))
199
200(defcustom gnus-summary-zcore-fuzz 0
201 "*Fuzziness factor for the zcore in the summary buffer.
202Articles with scores closer than this to `gnus-summary-default-score'
203will not be marked."
204 :group 'gnus-summary-format
205 :type 'integer)
206
207(defcustom gnus-simplify-subject-fuzzy-regexp nil
208 "*Strings to be removed when doing fuzzy matches.
209This can either be a regular expression or list of regular expressions
210that will be removed from subject strings if fuzzy subject
211simplification is selected."
212 :group 'gnus-thread
213 :type '(repeat regexp))
214
215(defcustom gnus-show-threads t
216 "*If non-nil, display threads in summary mode."
217 :group 'gnus-thread
218 :type 'boolean)
219
220(defcustom gnus-thread-hide-subtree nil
221 "*If non-nil, hide all threads initially.
222If threads are hidden, you have to run the command
223`gnus-summary-show-thread' by hand or use `gnus-select-article-hook'
224to expose hidden threads."
225 :group 'gnus-thread
226 :type 'boolean)
227
228(defcustom gnus-thread-hide-killed t
229 "*If non-nil, hide killed threads automatically."
230 :group 'gnus-thread
231 :type 'boolean)
232
6748645f
LMI		 233(defcustom gnus-thread-ignore-subject t
234 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
235If nil, articles that have different subjects from their parents will
236start separate threads."
eec82323
LMI		 237 :group 'gnus-thread
238 :type 'boolean)
239
240(defcustom gnus-thread-operation-ignore-subject t
241 "*If non-nil, subjects will be ignored when doing thread commands.
242This affects commands like `gnus-summary-kill-thread' and
243`gnus-summary-lower-thread'.
244
245If this variable is nil, articles in the same thread with different
246subjects will not be included in the operation in question. If this
247variable is `fuzzy', only articles that have subjects that are fuzzily
248equal will be included."
249 :group 'gnus-thread
250 :type '(choice (const :tag "off" nil)
251 (const fuzzy)
252 (sexp :tag "on" t)))
253
254(defcustom gnus-thread-indent-level 4
255 "*Number that says how much each sub-thread should be indented."
256 :group 'gnus-thread
257 :type 'integer)
258
259(defcustom gnus-auto-extend-newsgroup t
260 "*If non-nil, extend newsgroup forward and backward when requested."
261 :group 'gnus-summary-choose
262 :type 'boolean)
263
264(defcustom gnus-auto-select-first t
265 "*If nil, don't select the first unread article when entering a group.
266If this variable is `best', select the highest-scored unread article
16409b0b
GM		 267in the group. If t, select the first unread article.
268
269This variable can also be a function to place point on a likely
270subject line. Useful values include `gnus-summary-first-unread-subject',
271`gnus-summary-first-unread-article' and
272`gnus-summary-best-unread-article'.
eec82323
LMI		 273
274If you want to prevent automatic selection of the first unread article
275in some newsgroups, set the variable to nil in
276`gnus-select-group-hook'."
277 :group 'gnus-group-select
278 :type '(choice (const :tag "none" nil)
279 (const best)
16409b0b
GM		 280 (sexp :menu-tag "first" t)
281 (function-item gnus-summary-first-unread-subject)
282 (function-item gnus-summary-first-unread-article)
283 (function-item gnus-summary-best-unread-article)))
eec82323
LMI		 284
285(defcustom gnus-auto-select-next t
286 "*If non-nil, offer to go to the next group from the end of the previous.
287If the value is t and the next newsgroup is empty, Gnus will exit
288summary mode and go back to group mode. If the value is neither nil
289nor t, Gnus will select the following unread newsgroup. In
290particular, if the value is the symbol `quietly', the next unread
291newsgroup will be selected without any confirmation, and if it is
292`almost-quietly', the next group will be selected without any
293confirmation if you are located on the last article in the group.
294Finally, if this variable is `slightly-quietly', the `Z n' command
295will go to the next group without confirmation."
296 :group 'gnus-summary-maneuvering
297 :type '(choice (const :tag "off" nil)
298 (const quietly)
299 (const almost-quietly)
300 (const slightly-quietly)
301 (sexp :menu-tag "on" t)))
302
303(defcustom gnus-auto-select-same nil
6748645f
LMI		 304 "*If non-nil, select the next article with the same subject.
305If there are no more articles with the same subject, go to
306the first unread article."
eec82323
LMI		 307 :group 'gnus-summary-maneuvering
308 :type 'boolean)
309
310(defcustom gnus-summary-check-current nil
311 "*If non-nil, consider the current article when moving.
312The \"unread\" movement commands will stay on the same line if the
313current article is unread."
314 :group 'gnus-summary-maneuvering
315 :type 'boolean)
316
317(defcustom gnus-auto-center-summary t
318 "*If non-nil, always center the current summary buffer.
319In particular, if `vertical' do only vertical recentering. If non-nil
320and non-`vertical', do both horizontal and vertical recentering."
321 :group 'gnus-summary-maneuvering
322 :type '(choice (const :tag "none" nil)
323 (const vertical)
16409b0b 324 (integer :tag "height")
eec82323
LMI		 325 (sexp :menu-tag "both" t)))
326
327(defcustom gnus-show-all-headers nil
328 "*If non-nil, don't hide any headers."
329 :group 'gnus-article-hiding
330 :group 'gnus-article-headers
331 :type 'boolean)
332
333(defcustom gnus-summary-ignore-duplicates nil
334 "*If non-nil, ignore articles with identical Message-ID headers."
335 :group 'gnus-summary
336 :type 'boolean)
6748645f 337
eec82323
LMI		 338(defcustom gnus-single-article-buffer t
339 "*If non-nil, display all articles in the same buffer.
340If nil, each group will get its own article buffer."
341 :group 'gnus-article-various
342 :type 'boolean)
343
344(defcustom gnus-break-pages t
345 "*If non-nil, do page breaking on articles.
346The page delimiter is specified by the `gnus-page-delimiter'
347variable."
348 :group 'gnus-article-various
349 :type 'boolean)
350
eec82323
LMI		 351(defcustom gnus-move-split-methods nil
352 "*Variable used to suggest where articles are to be moved to.
353It uses the same syntax as the `gnus-split-methods' variable."
354 :group 'gnus-summary-mail
6748645f
LMI		 355 :type '(repeat (choice (list :value (fun) function)
356 (cons :value ("" "") regexp (repeat string))
357 (sexp :value nil))))
eec82323 358
16409b0b 359(defcustom gnus-unread-mark ? ;Whitespace
eec82323
LMI		 360 "*Mark used for unread articles."
361 :group 'gnus-summary-marks
362 :type 'character)
363
364(defcustom gnus-ticked-mark ?!
365 "*Mark used for ticked articles."
366 :group 'gnus-summary-marks
367 :type 'character)
368
369(defcustom gnus-dormant-mark ??
370 "*Mark used for dormant articles."
371 :group 'gnus-summary-marks
372 :type 'character)
373
374(defcustom gnus-del-mark ?r
375 "*Mark used for del'd articles."
376 :group 'gnus-summary-marks
377 :type 'character)
378
379(defcustom gnus-read-mark ?R
380 "*Mark used for read articles."
381 :group 'gnus-summary-marks
382 :type 'character)
383
384(defcustom gnus-expirable-mark ?E
385 "*Mark used for expirable articles."
386 :group 'gnus-summary-marks
387 :type 'character)
388
389(defcustom gnus-killed-mark ?K
390 "*Mark used for killed articles."
391 :group 'gnus-summary-marks
392 :type 'character)
393
394(defcustom gnus-souped-mark ?F
395 "*Mark used for killed articles."
396 :group 'gnus-summary-marks
397 :type 'character)
398
399(defcustom gnus-kill-file-mark ?X
400 "*Mark used for articles killed by kill files."
401 :group 'gnus-summary-marks
402 :type 'character)
403
404(defcustom gnus-low-score-mark ?Y
405 "*Mark used for articles with a low score."
406 :group 'gnus-summary-marks
407 :type 'character)
408
409(defcustom gnus-catchup-mark ?C
410 "*Mark used for articles that are caught up."
411 :group 'gnus-summary-marks
412 :type 'character)
413
414(defcustom gnus-replied-mark ?A
415 "*Mark used for articles that have been replied to."
416 :group 'gnus-summary-marks
417 :type 'character)
418
419(defcustom gnus-cached-mark ?*
420 "*Mark used for articles that are in the cache."
421 :group 'gnus-summary-marks
422 :type 'character)
423
424(defcustom gnus-saved-mark ?S
425 "*Mark used for articles that have been saved to."
426 :group 'gnus-summary-marks
427 :type 'character)
428
429(defcustom gnus-ancient-mark ?O
430 "*Mark used for ancient articles."
431 :group 'gnus-summary-marks
432 :type 'character)
433
434(defcustom gnus-sparse-mark ?Q
435 "*Mark used for sparsely reffed articles."
436 :group 'gnus-summary-marks
437 :type 'character)
438
439(defcustom gnus-canceled-mark ?G
440 "*Mark used for canceled articles."
441 :group 'gnus-summary-marks
442 :type 'character)
443
444(defcustom gnus-duplicate-mark ?M
445 "*Mark used for duplicate articles."
446 :group 'gnus-summary-marks
447 :type 'character)
448
6748645f
LMI		 449(defcustom gnus-undownloaded-mark ?@
450 "*Mark used for articles that weren't downloaded."
451 :group 'gnus-summary-marks
452 :type 'character)
453
454(defcustom gnus-downloadable-mark ?%
455 "*Mark used for articles that are to be downloaded."
456 :group 'gnus-summary-marks
457 :type 'character)
458
459(defcustom gnus-unsendable-mark ?=
460 "*Mark used for articles that won't be sent."
461 :group 'gnus-summary-marks
462 :type 'character)
463
eec82323
LMI		 464(defcustom gnus-score-over-mark ?+
465 "*Score mark used for articles with high scores."
466 :group 'gnus-summary-marks
467 :type 'character)
468
469(defcustom gnus-score-below-mark ?-
470 "*Score mark used for articles with low scores."
471 :group 'gnus-summary-marks
472 :type 'character)
473
16409b0b 474(defcustom gnus-empty-thread-mark ? ;Whitespace
eec82323
LMI		 475 "*There is no thread under the article."
476 :group 'gnus-summary-marks
477 :type 'character)
478
479(defcustom gnus-not-empty-thread-mark ?=
480 "*There is a thread under the article."
481 :group 'gnus-summary-marks
482 :type 'character)
483
484(defcustom gnus-view-pseudo-asynchronously nil
485 "*If non-nil, Gnus will view pseudo-articles asynchronously."
486 :group 'gnus-extract-view
487 :type 'boolean)
488
16409b0b
GM		 489(defcustom gnus-auto-expirable-marks
490 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
491 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
492 gnus-souped-mark gnus-duplicate-mark)
493 "*The list of marks converted into expiration if a group is auto-expirable."
58e39d05 494 :version "21.1"
16409b0b
GM		 495 :group 'gnus-summary
496 :type '(repeat character))
497
498(defcustom gnus-inhibit-user-auto-expire t
499 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 500 :version "21.1"
16409b0b
GM		 501 :group 'gnus-summary
502 :type 'boolean)
503
eec82323
LMI		 504(defcustom gnus-view-pseudos nil
505 "*If `automatic', pseudo-articles will be viewed automatically.
506If `not-confirm', pseudos will be viewed automatically, and the user
507will not be asked to confirm the command."
508 :group 'gnus-extract-view
509 :type '(choice (const :tag "off" nil)
510 (const automatic)
511 (const not-confirm)))
512
513(defcustom gnus-view-pseudos-separately t
514 "*If non-nil, one pseudo-article will be created for each file to be viewed.
515If nil, all files that use the same viewing command will be given as a
516list of parameters to that command."
517 :group 'gnus-extract-view
518 :type 'boolean)
519
520(defcustom gnus-insert-pseudo-articles t
521 "*If non-nil, insert pseudo-articles when decoding articles."
522 :group 'gnus-extract-view
523 :type 'boolean)
524
525(defcustom gnus-summary-dummy-line-format
6748645f 526 " %(: :%) %S\n"
eec82323
LMI		 527 "*The format specification for the dummy roots in the summary buffer.
528It works along the same lines as a normal formatting string,
529with some simple extensions.
530
531%S The subject"
532 :group 'gnus-threading
533 :type 'string)
534
16409b0b 535(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
eec82323
LMI		 536 "*The format specification for the summary mode line.
537It works along the same lines as a normal formatting string,
538with some simple extensions:
539
540%G Group name
541%p Unprefixed group name
542%A Current article number
6748645f 543%z Current article score
eec82323
LMI		 544%V Gnus version
545%U Number of unread articles in the group
546%e Number of unselected articles in the group
547%Z A string with unread/unselected article counts
548%g Shortish group name
549%S Subject of the current article
550%u User-defined spec
551%s Current score file name
552%d Number of dormant articles
553%r Number of articles that have been marked as read in this session
554%E Number of articles expunged by the score files"
555 :group 'gnus-summary-format
556 :type 'string)
557
16409b0b
GM		 558(defcustom gnus-list-identifiers nil
559 "Regexp that matches list identifiers to be removed from subject.
560This can also be a list of regexps."
58e39d05 561 :version "21.1"
16409b0b
GM		 562 :group 'gnus-summary-format
563 :group 'gnus-article-hiding
564 :type '(choice (const :tag "none" nil)
565 (regexp :value ".*")
566 (repeat :value (".*") regexp)))
567
eec82323
LMI		 568(defcustom gnus-summary-mark-below 0
569 "*Mark all articles with a score below this variable as read.
570This variable is local to each summary buffer and usually set by the
571score file."
572 :group 'gnus-score-default
573 :type 'integer)
574
575(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
576 "*List of functions used for sorting articles in the summary buffer.
577This variable is only used when not using a threaded display."
578 :group 'gnus-summary-sort
579 :type '(repeat (choice (function-item gnus-article-sort-by-number)
580 (function-item gnus-article-sort-by-author)
581 (function-item gnus-article-sort-by-subject)
582 (function-item gnus-article-sort-by-date)
583 (function-item gnus-article-sort-by-score)
584 (function :tag "other"))))
585
586(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
587 "*List of functions used for sorting threads in the summary buffer.
588By default, threads are sorted by article number.
589
590Each function takes two threads and return non-nil if the first thread
591should be sorted before the other. If you use more than one function,
592the primary sort function should be the last. You should probably
593always include `gnus-thread-sort-by-number' in the list of sorting
594functions -- preferably first.
595
596Ready-made functions include `gnus-thread-sort-by-number',
597`gnus-thread-sort-by-author', `gnus-thread-sort-by-subject',
598`gnus-thread-sort-by-date', `gnus-thread-sort-by-score' and
599`gnus-thread-sort-by-total-score' (see `gnus-thread-score-function')."
600 :group 'gnus-summary-sort
601 :type '(repeat (choice (function-item gnus-thread-sort-by-number)
602 (function-item gnus-thread-sort-by-author)
603 (function-item gnus-thread-sort-by-subject)
604 (function-item gnus-thread-sort-by-date)
605 (function-item gnus-thread-sort-by-score)
606 (function-item gnus-thread-sort-by-total-score)
607 (function :tag "other"))))
608
609(defcustom gnus-thread-score-function '+
610 "*Function used for calculating the total score of a thread.
611
612The function is called with the scores of the article and each
613subthread and should then return the score of the thread.
614
615Some functions you can use are `+', `max', or `min'."
616 :group 'gnus-summary-sort
617 :type 'function)
618
619(defcustom gnus-summary-expunge-below nil
6748645f
LMI		 620 "All articles that have a score less than this variable will be expunged.
621This variable is local to the summary buffers."
eec82323
LMI		 622 :group 'gnus-score-default
623 :type '(choice (const :tag "off" nil)
624 integer))
625
626(defcustom gnus-thread-expunge-below nil
627 "All threads that have a total score less than this variable will be expunged.
628See `gnus-thread-score-function' for en explanation of what a
6748645f
LMI		 629\"thread score\" is.
630
631This variable is local to the summary buffers."
16409b0b 632 :group 'gnus-threading
eec82323
LMI		 633 :group 'gnus-score-default
634 :type '(choice (const :tag "off" nil)
635 integer))
636
637(defcustom gnus-summary-mode-hook nil
638 "*A hook for Gnus summary mode.
639This hook is run before any variables are set in the summary buffer."
60bd5589 640 :options '(turn-on-gnus-mailing-list-mode)
eec82323
LMI		 641 :group 'gnus-summary-various
642 :type 'hook)
643
644(defcustom gnus-summary-menu-hook nil
645 "*Hook run after the creation of the summary mode menu."
646 :group 'gnus-summary-visual
647 :type 'hook)
648
649(defcustom gnus-summary-exit-hook nil
650 "*A hook called on exit from the summary buffer.
651It will be called with point in the group buffer."
652 :group 'gnus-summary-exit
653 :type 'hook)
654
655(defcustom gnus-summary-prepare-hook nil
656 "*A hook called after the summary buffer has been generated.
657If you want to modify the summary buffer, you can use this hook."
658 :group 'gnus-summary-various
659 :type 'hook)
660
6748645f
LMI		 661(defcustom gnus-summary-prepared-hook nil
662 "*A hook called as the last thing after the summary buffer has been generated."
663 :group 'gnus-summary-various
664 :type 'hook)
665
eec82323
LMI		 666(defcustom gnus-summary-generate-hook nil
667 "*A hook run just before generating the summary buffer.
668This hook is commonly used to customize threading variables and the
669like."
670 :group 'gnus-summary-various
671 :type 'hook)
672
673(defcustom gnus-select-group-hook nil
674 "*A hook called when a newsgroup is selected.
675
676If you'd like to simplify subjects like the
677`gnus-summary-next-same-subject' command does, you can use the
678following hook:
679
680 (setq gnus-select-group-hook
681 (list
682 (lambda ()
683 (mapcar (lambda (header)
684 (mail-header-set-subject
685 header
686 (gnus-simplify-subject
687 (mail-header-subject header) 're-only)))
688 gnus-newsgroup-headers))))"
689 :group 'gnus-group-select
690 :type 'hook)
691
692(defcustom gnus-select-article-hook nil
693 "*A hook called when an article is selected."
694 :group 'gnus-summary-choose
695 :type 'hook)
696
697(defcustom gnus-visual-mark-article-hook
698 (list 'gnus-highlight-selected-summary)
699 "*Hook run after selecting an article in the summary buffer.
700It is meant to be used for highlighting the article in some way. It
701is not run if `gnus-visual' is nil."
702 :group 'gnus-summary-visual
703 :type 'hook)
704
16409b0b 705(defcustom gnus-parse-headers-hook nil
eec82323
LMI		 706 "*A hook called before parsing the headers."
707 :group 'gnus-various
708 :type 'hook)
709
710(defcustom gnus-exit-group-hook nil
16409b0b
GM		 711 "*A hook called when exiting summary mode.
712This hook is not called from the non-updating exit commands like `Q'."
eec82323
LMI		 713 :group 'gnus-various
714 :type 'hook)
715
716(defcustom gnus-summary-update-hook
717 (list 'gnus-summary-highlight-line)
718 "*A hook called when a summary line is changed.
719The hook will not be called if `gnus-visual' is nil.
720
721The default function `gnus-summary-highlight-line' will
722highlight the line according to the `gnus-summary-highlight'
723variable."
724 :group 'gnus-summary-visual
725 :type 'hook)
726
727(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
728 "*A hook called when an article is selected for the first time.
729The hook is intended to mark an article as read (or unread)
730automatically when it is selected."
731 :group 'gnus-summary-choose
732 :type 'hook)
733
734(defcustom gnus-group-no-more-groups-hook nil
735 "*A hook run when returning to group mode having no more (unread) groups."
736 :group 'gnus-group-select
737 :type 'hook)
738
739(defcustom gnus-ps-print-hook nil
740 "*A hook run before ps-printing something from Gnus."
741 :group 'gnus-summary
742 :type 'hook)
743
744(defcustom gnus-summary-selected-face 'gnus-summary-selected-face
745 "Face used for highlighting the current article in the summary buffer."
746 :group 'gnus-summary-visual
747 :type 'face)
748
749(defcustom gnus-summary-highlight
750 '(((= mark gnus-canceled-mark)
751 . gnus-summary-cancelled-face)
752 ((and (> score default)
753 (or (= mark gnus-dormant-mark)
754 (= mark gnus-ticked-mark)))
755 . gnus-summary-high-ticked-face)
756 ((and (< score default)
757 (or (= mark gnus-dormant-mark)
758 (= mark gnus-ticked-mark)))
759 . gnus-summary-low-ticked-face)
760 ((or (= mark gnus-dormant-mark)
761 (= mark gnus-ticked-mark))
762 . gnus-summary-normal-ticked-face)
763 ((and (> score default) (= mark gnus-ancient-mark))
764 . gnus-summary-high-ancient-face)
765 ((and (< score default) (= mark gnus-ancient-mark))
766 . gnus-summary-low-ancient-face)
767 ((= mark gnus-ancient-mark)
768 . gnus-summary-normal-ancient-face)
769 ((and (> score default) (= mark gnus-unread-mark))
770 . gnus-summary-high-unread-face)
771 ((and (< score default) (= mark gnus-unread-mark))
772 . gnus-summary-low-unread-face)
6748645f
LMI		 773 ((= mark gnus-unread-mark)
774 . gnus-summary-normal-unread-face)
775 ((and (> score default) (memq mark (list gnus-downloadable-mark
776 gnus-undownloaded-mark)))
777 . gnus-summary-high-unread-face)
778 ((and (< score default) (memq mark (list gnus-downloadable-mark
779 gnus-undownloaded-mark)))
780 . gnus-summary-low-unread-face)
781 ((memq mark (list gnus-downloadable-mark gnus-undownloaded-mark))
eec82323
LMI		 782 . gnus-summary-normal-unread-face)
783 ((> score default)
784 . gnus-summary-high-read-face)
785 ((< score default)
786 . gnus-summary-low-read-face)
787 (t
788 . gnus-summary-normal-read-face))
6748645f 789 "*Controls the highlighting of summary buffer lines.
eec82323
LMI		 790
791A list of (FORM . FACE) pairs. When deciding how a a particular
792summary line should be displayed, each form is evaluated. The content
793of the face field after the first true form is used. You can change
794how those summary lines are displayed, by editing the face field.
795
796You can use the following variables in the FORM field.
797
798score: The articles score
799default: The default article score.
800below: The score below which articles are automatically marked as read.
801mark: The articles mark."
802 :group 'gnus-summary-visual
803 :type '(repeat (cons (sexp :tag "Form" nil)
804 face)))
805
6748645f
LMI		 806(defcustom gnus-alter-header-function nil
807 "Function called to allow alteration of article header structures.
808The function is called with one parameter, the article header vector,
809which it may alter in any way.")
eec82323 810
16409b0b
GM		 811(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
812 "Variable that says which function should be used to decode a string with encoded words.")
813
814(defcustom gnus-extra-headers nil
815 "*Extra headers to parse."
58e39d05 816 :version "21.1"
16409b0b
GM		 817 :group 'gnus-summary
818 :type '(repeat symbol))
819
820(defcustom gnus-ignored-from-addresses
821 (and user-mail-address (regexp-quote user-mail-address))
822 "*Regexp of From headers that may be suppressed in favor of To headers."
58e39d05 823 :version "21.1"
16409b0b
GM		 824 :group 'gnus-summary
825 :type 'regexp)
826
827(defcustom gnus-group-charset-alist
828 '(("^hk\\>\\|^tw\\>\\|\\<big5\\>" cn-big5)
829 ("^cn\\>\\|\\<chinese\\>" cn-gb-2312)
830 ("^fj\\>\\|^japan\\>" iso-2022-jp-2)
831 ("^tnn\\>\\|^pin\\>\\|^sci.lang.japan" iso-2022-7bit)
832 ("^relcom\\>" koi8-r)
833 ("^fido7\\>" koi8-r)
834 ("^\\(cz\\|hun\\|pl\\|sk\\|hr\\)\\>" iso-8859-2)
835 ("^israel\\>" iso-8859-1)
836 ("^han\\>" euc-kr)
837 ("^alt.chinese.text.big5\\>" chinese-big5)
838 ("^soc.culture.vietnamese\\>" vietnamese-viqr)
839 ("^\\(comp\\|rec\\|alt\\|sci\\|soc\\|news\\|gnu\\|bofh\\)\\>" iso-8859-1)
840 (".*" iso-8859-1))
841 "Alist of regexps (to match group names) and default charsets to be used when reading."
842 :type '(repeat (list (regexp :tag "Group")
843 (symbol :tag "Charset")))
844 :group 'gnus-charset)
845
846(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
847 "List of charsets that should be ignored.
848When these charsets are used in the \"charset\" parameter, the
849default charset will be used instead."
58e39d05 850 :version "21.1"
16409b0b
GM		 851 :type '(repeat symbol)
852 :group 'gnus-charset)
853
854(defcustom gnus-group-ignored-charsets-alist
855 '(("alt\\.chinese\\.text" iso-8859-1))
856 "Alist of regexps (to match group names) and charsets that should be ignored.
857When these charsets are used in the \"charset\" parameter, the
858default charset will be used instead."
859 :type '(repeat (cons (regexp :tag "Group")
860 (repeat symbol)))
861 :group 'gnus-charset)
862
863(defcustom gnus-group-highlight-words-alist nil
864 "Alist of group regexps and highlight regexps.
865This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 866 :version "21.1"
16409b0b
GM		 867 :type '(repeat (cons (regexp :tag "Group")
868 (repeat (list (regexp :tag "Highlight regexp")
869 (number :tag "Group for entire word" 0)
870 (number :tag "Group for displayed part" 0)
871 (symbol :tag "Face"
872 gnus-emphasis-highlight-words)))))
873 :group 'gnus-summary-visual)
874
875(defcustom gnus-summary-show-article-charset-alist
876 nil
877 "Alist of number and charset.
878The article will be shown with the charset corresponding to the
879numbered argument.
880For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 881 :version "21.1"
16409b0b
GM		 882 :type '(repeat (cons (number :tag "Argument" 1)
883 (symbol :tag "Charset")))
884 :group 'gnus-charset)
885
886(defcustom gnus-preserve-marks t
887 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 888 :version "21.1"
16409b0b
GM		 889 :type 'boolean
890 :group 'gnus-summary-marks)
891
892(defcustom gnus-alter-articles-to-read-function nil
893 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 894 :type '(choice (const nil) function)
16409b0b
GM		 895 :group 'gnus-summary)
896
897(defcustom gnus-orphan-score nil
898 "*All orphans get this score added. Set in the score file."
899 :group 'gnus-score-default
900 :type '(choice (const nil)
901 integer))
902
8b93df01
DL		 903(defcustom gnus-summary-save-parts-default-mime "image/.*"
904 "*A regexp to match MIME parts when saving multiple parts of a message
905with gnus-summary-save-parts (X m). This regexp will be used by default
906when prompting the user for which type of files to save."
907 :group 'gnus-summary
908 :type 'regexp)
909
910
eec82323
LMI		 911;;; Internal variables
912
16409b0b
GM		 913(defvar gnus-article-mime-handles nil)
914(defvar gnus-article-decoded-p nil)
eec82323
LMI		 915(defvar gnus-scores-exclude-files nil)
916(defvar gnus-page-broken nil)
16409b0b 917(defvar gnus-inhibit-mime-unbuttonizing nil)
eec82323
LMI		 918
919(defvar gnus-original-article nil)
920(defvar gnus-article-internal-prepare-hook nil)
921(defvar gnus-newsgroup-process-stack nil)
922
923(defvar gnus-thread-indent-array nil)
924(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM		 925(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
926 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 927
8b93df01
DL		 928(defvar gnus-summary-save-parts-type-history nil)
929(defvar gnus-summary-save-parts-last-directory nil)
930
eec82323
LMI		 931;; Avoid highlighting in kill files.
932(defvar gnus-summary-inhibit-highlight nil)
933(defvar gnus-newsgroup-selected-overlay nil)
934(defvar gnus-inhibit-limiting nil)
935(defvar gnus-newsgroup-adaptive-score-file nil)
936(defvar gnus-current-score-file nil)
937(defvar gnus-current-move-group nil)
938(defvar gnus-current-copy-group nil)
939(defvar gnus-current-crosspost-group nil)
940
941(defvar gnus-newsgroup-dependencies nil)
942(defvar gnus-newsgroup-adaptive nil)
943(defvar gnus-summary-display-article-function nil)
944(defvar gnus-summary-highlight-line-function nil
945 "Function called after highlighting a summary line.")
946
947(defvar gnus-summary-line-format-alist
948 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
949 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
950 (?s gnus-tmp-subject-or-nil ?s)
951 (?n gnus-tmp-name ?s)
952 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
953 ?s)
954 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
955 gnus-tmp-from) ?s)
956 (?F gnus-tmp-from ?s)
957 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
958 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
959 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 960 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI		 961 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
962 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
963 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
964 (?L gnus-tmp-lines ?d)
965 (?I gnus-tmp-indentation ?s)
966 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
967 (?R gnus-tmp-replied ?c)
968 (?\[ gnus-tmp-opening-bracket ?c)
969 (?\] gnus-tmp-closing-bracket ?c)
970 (?\> (make-string gnus-tmp-level ? ) ?s)
971 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
972 (?i gnus-tmp-score ?d)
973 (?z gnus-tmp-score-char ?c)
974 (?l (bbb-grouplens-score gnus-tmp-header) ?s)
975 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
976 (?U gnus-tmp-unread ?c)
16409b0b 977 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header) ?s)
eec82323
LMI		 978 (?t (gnus-summary-number-of-articles-in-thread
979 (and (boundp 'thread) (car thread)) gnus-tmp-level)
980 ?d)
981 (?e (gnus-summary-number-of-articles-in-thread
982 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
983 ?c)
984 (?u gnus-tmp-user-defined ?s)
985 (?P (gnus-pick-line-number) ?d))
16409b0b
GM		 986 "An alist of format specifications that can appear in summary lines.
987These are paired with what variables they correspond with, along with
988the type of the variable (string, integer, character, etc).")
eec82323
LMI		 989
990(defvar gnus-summary-dummy-line-format-alist
991 `((?S gnus-tmp-subject ?s)
992 (?N gnus-tmp-number ?d)
993 (?u gnus-tmp-user-defined ?s)))
994
995(defvar gnus-summary-mode-line-format-alist
996 `((?G gnus-tmp-group-name ?s)
997 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
998 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
999 (?A gnus-tmp-article-number ?d)
1000 (?Z gnus-tmp-unread-and-unselected ?s)
1001 (?V gnus-version ?s)
1002 (?U gnus-tmp-unread-and-unticked ?d)
1003 (?S gnus-tmp-subject ?s)
1004 (?e gnus-tmp-unselected ?d)
1005 (?u gnus-tmp-user-defined ?s)
1006 (?d (length gnus-newsgroup-dormant) ?d)
1007 (?t (length gnus-newsgroup-marked) ?d)
1008 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1009 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI		 1010 (?E gnus-newsgroup-expunged-tally ?d)
1011 (?s (gnus-current-score-file-nondirectory) ?s)))
1012
1013(defvar gnus-last-search-regexp nil
1014 "Default regexp for article search command.")
1015
1016(defvar gnus-last-shell-command nil
1017 "Default shell command on article.")
1018
1019(defvar gnus-newsgroup-begin nil)
1020(defvar gnus-newsgroup-end nil)
1021(defvar gnus-newsgroup-last-rmail nil)
1022(defvar gnus-newsgroup-last-mail nil)
1023(defvar gnus-newsgroup-last-folder nil)
1024(defvar gnus-newsgroup-last-file nil)
1025(defvar gnus-newsgroup-auto-expire nil)
1026(defvar gnus-newsgroup-active nil)
1027
1028(defvar gnus-newsgroup-data nil)
1029(defvar gnus-newsgroup-data-reverse nil)
1030(defvar gnus-newsgroup-limit nil)
1031(defvar gnus-newsgroup-limits nil)
1032
1033(defvar gnus-newsgroup-unreads nil
1034 "List of unread articles in the current newsgroup.")
1035
1036(defvar gnus-newsgroup-unselected nil
1037 "List of unselected unread articles in the current newsgroup.")
1038
1039(defvar gnus-newsgroup-reads nil
1040 "Alist of read articles and article marks in the current newsgroup.")
1041
1042(defvar gnus-newsgroup-expunged-tally nil)
1043
1044(defvar gnus-newsgroup-marked nil
1045 "List of ticked articles in the current newsgroup (a subset of unread art).")
1046
1047(defvar gnus-newsgroup-killed nil
1048 "List of ranges of articles that have been through the scoring process.")
1049
1050(defvar gnus-newsgroup-cached nil
1051 "List of articles that come from the article cache.")
1052
1053(defvar gnus-newsgroup-saved nil
1054 "List of articles that have been saved.")
1055
1056(defvar gnus-newsgroup-kill-headers nil)
1057
1058(defvar gnus-newsgroup-replied nil
1059 "List of articles that have been replied to in the current newsgroup.")
1060
1061(defvar gnus-newsgroup-expirable nil
1062 "List of articles in the current newsgroup that can be expired.")
1063
1064(defvar gnus-newsgroup-processable nil
1065 "List of articles in the current newsgroup that can be processed.")
1066
6748645f
LMI		 1067(defvar gnus-newsgroup-downloadable nil
1068 "List of articles in the current newsgroup that can be processed.")
1069
1070(defvar gnus-newsgroup-undownloaded nil
1071 "List of articles in the current newsgroup that haven't been downloaded..")
1072
1073(defvar gnus-newsgroup-unsendable nil
1074 "List of articles in the current newsgroup that won't be sent.")
1075
eec82323
LMI		 1076(defvar gnus-newsgroup-bookmarks nil
1077 "List of articles in the current newsgroup that have bookmarks.")
1078
1079(defvar gnus-newsgroup-dormant nil
1080 "List of dormant articles in the current newsgroup.")
1081
1082(defvar gnus-newsgroup-scored nil
1083 "List of scored articles in the current newsgroup.")
1084
1085(defvar gnus-newsgroup-headers nil
1086 "List of article headers in the current newsgroup.")
1087
1088(defvar gnus-newsgroup-threads nil)
1089
1090(defvar gnus-newsgroup-prepared nil
1091 "Whether the current group has been prepared properly.")
1092
1093(defvar gnus-newsgroup-ancient nil
1094 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1095
1096(defvar gnus-newsgroup-sparse nil)
1097
1098(defvar gnus-current-article nil)
1099(defvar gnus-article-current nil)
1100(defvar gnus-current-headers nil)
1101(defvar gnus-have-all-headers nil)
1102(defvar gnus-last-article nil)
1103(defvar gnus-newsgroup-history nil)
16409b0b
GM		 1104(defvar gnus-newsgroup-charset nil)
1105(defvar gnus-newsgroup-ephemeral-charset nil)
1106(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323
LMI		 1107
1108(defconst gnus-summary-local-variables
1109 '(gnus-newsgroup-name
1110 gnus-newsgroup-begin gnus-newsgroup-end
1111 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1112 gnus-newsgroup-last-folder gnus-newsgroup-last-file
1113 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1114 gnus-newsgroup-unselected gnus-newsgroup-marked
1115 gnus-newsgroup-reads gnus-newsgroup-saved
1116 gnus-newsgroup-replied gnus-newsgroup-expirable
1117 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f
LMI		 1118 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
1119 gnus-newsgroup-unsendable
eec82323
LMI		 1120 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1121 gnus-newsgroup-headers gnus-newsgroup-threads
1122 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1123 gnus-current-article gnus-current-headers gnus-have-all-headers
1124 gnus-last-article gnus-article-internal-prepare-hook
1125 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1126 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1127 gnus-thread-expunge-below
16409b0b
GM		 1128 gnus-score-alist gnus-current-score-file
1129 (gnus-summary-expunge-below . global)
eec82323 1130 (gnus-summary-mark-below . global)
16409b0b 1131 (gnus-orphan-score . global)
eec82323
LMI		 1132 gnus-newsgroup-active gnus-scores-exclude-files
1133 gnus-newsgroup-history gnus-newsgroup-ancient
1134 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1135 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1136 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1137 (gnus-newsgroup-expunged-tally . 0)
1138 gnus-cache-removable-articles gnus-newsgroup-cached
1139 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b
GM		 1140 gnus-newsgroup-limit gnus-newsgroup-limits
1141 gnus-newsgroup-charset)
eec82323
LMI		 1142 "Variables that are buffer-local to the summary buffers.")
1143
1144;; Byte-compiler warning.
60bd5589 1145(eval-when-compile (defvar gnus-article-mode-map))
eec82323 1146
16409b0b
GM		 1147;; MIME stuff.
1148
1149(defvar gnus-decode-encoded-word-methods
1150 '(mail-decode-encoded-word-string)
1151 "List of methods used to decode encoded words.
1152
1153This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item is
1154FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1155(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
1156whose names match REGEXP.
1157
1158For example:
1159((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
1160 mail-decode-encoded-word-string
1161 (\"chinese\" . rfc1843-decode-string))")
1162
1163(defvar gnus-decode-encoded-word-methods-cache nil)
1164
1165(defun gnus-multi-decode-encoded-word-string (string)
1166 "Apply the functions from `gnus-encoded-word-methods' that match."
1167 (unless (and gnus-decode-encoded-word-methods-cache
1168 (eq gnus-newsgroup-name
1169 (car gnus-decode-encoded-word-methods-cache)))
1170 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
1171 (mapcar (lambda (x)
1172 (if (symbolp x)
1173 (nconc gnus-decode-encoded-word-methods-cache (list x))
1174 (if (and gnus-newsgroup-name
1175 (string-match (car x) gnus-newsgroup-name))
1176 (nconc gnus-decode-encoded-word-methods-cache
1177 (list (cdr x))))))
1178 gnus-decode-encoded-word-methods))
1179 (let ((xlist gnus-decode-encoded-word-methods-cache))
1180 (pop xlist)
1181 (while xlist
1182 (setq string (funcall (pop xlist) string))))
1183 string)
1184
eec82323
LMI		 1185;; Subject simplification.
1186
6748645f 1187(defun gnus-simplify-whitespace (str)
16409b0b 1188 "Remove excessive whitespace from STR."
6748645f
LMI		 1189 (let ((mystr str))
1190 ;; Multiple spaces.
1191 (while (string-match "[ \t][ \t]+" mystr)
1192 (setq mystr (concat (substring mystr 0 (match-beginning 0))
1193 " "
1194 (substring mystr (match-end 0)))))
1195 ;; Leading spaces.
1196 (when (string-match "^[ \t]+" mystr)
1197 (setq mystr (substring mystr (match-end 0))))
1198 ;; Trailing spaces.
1199 (when (string-match "[ \t]+$" mystr)
1200 (setq mystr (substring mystr 0 (match-beginning 0))))
1201 mystr))
1202
eec82323
LMI		 1203(defsubst gnus-simplify-subject-re (subject)
1204 "Remove \"Re:\" from subject lines."
1205 (if (string-match "^[Rr][Ee]: *" subject)
1206 (substring subject (match-end 0))
1207 subject))
1208
1209(defun gnus-simplify-subject (subject &optional re-only)
1210 "Remove `Re:' and words in parentheses.
1211If RE-ONLY is non-nil, strip leading `Re:'s only."
1212 (let ((case-fold-search t)) ;Ignore case.
1213 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1214 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1215 (setq subject (substring subject (match-end 0))))
1216 ;; Remove uninteresting prefixes.
1217 (when (and (not re-only)
1218 gnus-simplify-ignored-prefixes
1219 (string-match gnus-simplify-ignored-prefixes subject))
1220 (setq subject (substring subject (match-end 0))))
1221 ;; Remove words in parentheses from end.
1222 (unless re-only
1223 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1224 (setq subject (substring subject 0 (match-beginning 0)))))
1225 ;; Return subject string.
1226 subject))
1227
1228;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1229;; all whitespace.
1230(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1231 (goto-char (point-min))
1232 (while (re-search-forward regexp nil t)
16409b0b 1233 (replace-match (or newtext ""))))
eec82323
LMI		 1234
1235(defun gnus-simplify-buffer-fuzzy ()
1236 "Simplify string in the buffer fuzzily.
1237The string in the accessible portion of the current buffer is simplified.
1238It is assumed to be a single-line subject.
1239Whitespace is generally cleaned up, and miscellaneous leading/trailing
1240matter is removed. Additional things can be deleted by setting
16409b0b 1241`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI		 1242 (let ((case-fold-search t)
1243 (modified-tick))
1244 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1245
1246 (while (not (eq modified-tick (buffer-modified-tick)))
1247 (setq modified-tick (buffer-modified-tick))
1248 (cond
1249 ((listp gnus-simplify-subject-fuzzy-regexp)
1250 (mapcar 'gnus-simplify-buffer-fuzzy-step
1251 gnus-simplify-subject-fuzzy-regexp))
1252 (gnus-simplify-subject-fuzzy-regexp
1253 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1254 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1255 (gnus-simplify-buffer-fuzzy-step
1256 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1257 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1258
1259 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1260 (gnus-simplify-buffer-fuzzy-step " +" " ")
1261 (gnus-simplify-buffer-fuzzy-step " $")
1262 (gnus-simplify-buffer-fuzzy-step "^ +")))
1263
1264(defun gnus-simplify-subject-fuzzy (subject)
1265 "Simplify a subject string fuzzily.
6748645f 1266See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI		 1267 (save-excursion
1268 (gnus-set-work-buffer)
1269 (let ((case-fold-search t))
6748645f
LMI		 1270 ;; Remove uninteresting prefixes.
1271 (when (and gnus-simplify-ignored-prefixes
1272 (string-match gnus-simplify-ignored-prefixes subject))
1273 (setq subject (substring subject (match-end 0))))
eec82323
LMI		 1274 (insert subject)
1275 (inline (gnus-simplify-buffer-fuzzy))
1276 (buffer-string))))
1277
1278(defsubst gnus-simplify-subject-fully (subject)
1279 "Simplify a subject string according to gnus-summary-gather-subject-limit."
1280 (cond
6748645f
LMI		 1281 (gnus-simplify-subject-functions
1282 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI		 1283 ((null gnus-summary-gather-subject-limit)
1284 (gnus-simplify-subject-re subject))
1285 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1286 (gnus-simplify-subject-fuzzy subject))
1287 ((numberp gnus-summary-gather-subject-limit)
1288 (gnus-limit-string (gnus-simplify-subject-re subject)
1289 gnus-summary-gather-subject-limit))
1290 (t
1291 subject)))
1292
1293(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f
LMI		 1294 "Check whether two subjects are equal.
1295If optional argument simple-first is t, first argument is already
1296simplified."
eec82323
LMI		 1297 (cond
1298 ((null simple-first)
1299 (equal (gnus-simplify-subject-fully s1)
1300 (gnus-simplify-subject-fully s2)))
1301 (t
1302 (equal s1
1303 (gnus-simplify-subject-fully s2)))))
1304
1305(defun gnus-summary-bubble-group ()
1306 "Increase the score of the current group.
1307This is a handy function to add to `gnus-summary-exit-hook' to
1308increase the score of each group you read."
1309 (gnus-group-add-score gnus-newsgroup-name))
1310
1311\f
1312;;;
1313;;; Gnus summary mode
1314;;;
1315
1316(put 'gnus-summary-mode 'mode-class 'special)
1317
1653df0f
SZ		 1318(defvar gnus-article-commands-menu)
1319
eec82323
LMI		 1320(when t
1321 ;; Non-orthogonal keys
1322
1323 (gnus-define-keys gnus-summary-mode-map
1324 " " gnus-summary-next-page
1325 "\177" gnus-summary-prev-page
1326 [delete] gnus-summary-prev-page
6748645f 1327 [backspace] gnus-summary-prev-page
eec82323 1328 "\r" gnus-summary-scroll-up
6748645f 1329 "\M-\r" gnus-summary-scroll-down
eec82323
LMI		 1330 "n" gnus-summary-next-unread-article
1331 "p" gnus-summary-prev-unread-article
1332 "N" gnus-summary-next-article
1333 "P" gnus-summary-prev-article
1334 "\M-\C-n" gnus-summary-next-same-subject
1335 "\M-\C-p" gnus-summary-prev-same-subject
1336 "\M-n" gnus-summary-next-unread-subject
1337 "\M-p" gnus-summary-prev-unread-subject
1338 "." gnus-summary-first-unread-article
1339 "," gnus-summary-best-unread-article
1340 "\M-s" gnus-summary-search-article-forward
1341 "\M-r" gnus-summary-search-article-backward
1342 "<" gnus-summary-beginning-of-article
1343 ">" gnus-summary-end-of-article
1344 "j" gnus-summary-goto-article
1345 "^" gnus-summary-refer-parent-article
1346 "\M-^" gnus-summary-refer-article
1347 "u" gnus-summary-tick-article-forward
1348 "!" gnus-summary-tick-article-forward
1349 "U" gnus-summary-tick-article-backward
1350 "d" gnus-summary-mark-as-read-forward
1351 "D" gnus-summary-mark-as-read-backward
1352 "E" gnus-summary-mark-as-expirable
1353 "\M-u" gnus-summary-clear-mark-forward
1354 "\M-U" gnus-summary-clear-mark-backward
1355 "k" gnus-summary-kill-same-subject-and-select
1356 "\C-k" gnus-summary-kill-same-subject
1357 "\M-\C-k" gnus-summary-kill-thread
1358 "\M-\C-l" gnus-summary-lower-thread
1359 "e" gnus-summary-edit-article
1360 "#" gnus-summary-mark-as-processable
1361 "\M-#" gnus-summary-unmark-as-processable
1362 "\M-\C-t" gnus-summary-toggle-threads
1363 "\M-\C-s" gnus-summary-show-thread
1364 "\M-\C-h" gnus-summary-hide-thread
1365 "\M-\C-f" gnus-summary-next-thread
1366 "\M-\C-b" gnus-summary-prev-thread
16409b0b
GM		 1367 [(meta down)] gnus-summary-next-thread
1368 [(meta up)] gnus-summary-prev-thread
eec82323
LMI		 1369 "\M-\C-u" gnus-summary-up-thread
1370 "\M-\C-d" gnus-summary-down-thread
1371 "&" gnus-summary-execute-command
1372 "c" gnus-summary-catchup-and-exit
1373 "\C-w" gnus-summary-mark-region-as-read
1374 "\C-t" gnus-summary-toggle-truncation
1375 "?" gnus-summary-mark-as-dormant
1376 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1377 "\C-c\C-s\C-n" gnus-summary-sort-by-number
1378 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
16409b0b 1379 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
eec82323
LMI		 1380 "\C-c\C-s\C-a" gnus-summary-sort-by-author
1381 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1382 "\C-c\C-s\C-d" gnus-summary-sort-by-date
1383 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1384 "=" gnus-summary-expand-window
1385 "\C-x\C-s" gnus-summary-reselect-current-group
1386 "\M-g" gnus-summary-rescan-group
1387 "w" gnus-summary-stop-page-breaking
1388 "\C-c\C-r" gnus-summary-caesar-message
eec82323
LMI		 1389 "f" gnus-summary-followup
1390 "F" gnus-summary-followup-with-original
1391 "C" gnus-summary-cancel-article
1392 "r" gnus-summary-reply
1393 "R" gnus-summary-reply-with-original
1394 "\C-c\C-f" gnus-summary-mail-forward
1395 "o" gnus-summary-save-article
1396 "\C-o" gnus-summary-save-article-mail
1397 "|" gnus-summary-pipe-output
1398 "\M-k" gnus-summary-edit-local-kill
1399 "\M-K" gnus-summary-edit-global-kill
1400 ;; "V" gnus-version
1401 "\C-c\C-d" gnus-summary-describe-group
1402 "q" gnus-summary-exit
1403 "Q" gnus-summary-exit-no-update
1404 "\C-c\C-i" gnus-info-find-node
1405 gnus-mouse-2 gnus-mouse-pick-article
1406 "m" gnus-summary-mail-other-window
1407 "a" gnus-summary-post-news
1408 "x" gnus-summary-limit-to-unread
1409 "s" gnus-summary-isearch-article
16409b0b 1410 "t" gnus-summary-toggle-header
eec82323
LMI		 1411 "g" gnus-summary-show-article
1412 "l" gnus-summary-goto-last-article
1413 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1414 "\C-d" gnus-summary-enter-digest-group
1415 "\M-\C-d" gnus-summary-read-document
6748645f 1416 "\M-\C-e" gnus-summary-edit-parameters
16409b0b 1417 "\M-\C-a" gnus-summary-customize-parameters
eec82323
LMI		 1418 "\C-c\C-b" gnus-bug
1419 "*" gnus-cache-enter-article
1420 "\M-*" gnus-cache-remove-article
1421 "\M-&" gnus-summary-universal-argument
1422 "\C-l" gnus-recenter
1423 "I" gnus-summary-increase-score
1424 "L" gnus-summary-lower-score
6748645f
LMI		 1425 "\M-i" gnus-symbolic-argument
1426 "h" gnus-summary-select-article-buffer
eec82323 1427
16409b0b
GM		 1428 "b" gnus-article-view-part
1429 "\M-t" gnus-summary-toggle-display-buttonized
1430
eec82323
LMI		 1431 "V" gnus-summary-score-map
1432 "X" gnus-uu-extract-map
1433 "S" gnus-summary-send-map)
1434
1435 ;; Sort of orthogonal keymap
1436 (gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1437 "t" gnus-summary-tick-article-forward
1438 "!" gnus-summary-tick-article-forward
1439 "d" gnus-summary-mark-as-read-forward
1440 "r" gnus-summary-mark-as-read-forward
1441 "c" gnus-summary-clear-mark-forward
1442 " " gnus-summary-clear-mark-forward
1443 "e" gnus-summary-mark-as-expirable
1444 "x" gnus-summary-mark-as-expirable
1445 "?" gnus-summary-mark-as-dormant
1446 "b" gnus-summary-set-bookmark
1447 "B" gnus-summary-remove-bookmark
1448 "#" gnus-summary-mark-as-processable
1449 "\M-#" gnus-summary-unmark-as-processable
1450 "S" gnus-summary-limit-include-expunged
1451 "C" gnus-summary-catchup
1452 "H" gnus-summary-catchup-to-here
1453 "\C-c" gnus-summary-catchup-all
1454 "k" gnus-summary-kill-same-subject-and-select
1455 "K" gnus-summary-kill-same-subject
1456 "P" gnus-uu-mark-map)
1457
1458 (gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1459 "c" gnus-summary-clear-above
1460 "u" gnus-summary-tick-above
1461 "m" gnus-summary-mark-above
1462 "k" gnus-summary-kill-below)
1463
1464 (gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1465 "/" gnus-summary-limit-to-subject
1466 "n" gnus-summary-limit-to-articles
1467 "w" gnus-summary-pop-limit
1468 "s" gnus-summary-limit-to-subject
1469 "a" gnus-summary-limit-to-author
1470 "u" gnus-summary-limit-to-unread
1471 "m" gnus-summary-limit-to-marks
16409b0b 1472 "M" gnus-summary-limit-exclude-marks
eec82323 1473 "v" gnus-summary-limit-to-score
6748645f 1474 "*" gnus-summary-limit-include-cached
eec82323 1475 "D" gnus-summary-limit-include-dormant
6748645f 1476 "T" gnus-summary-limit-include-thread
eec82323
LMI		 1477 "d" gnus-summary-limit-exclude-dormant
1478 "t" gnus-summary-limit-to-age
16409b0b 1479 "x" gnus-summary-limit-to-extra
eec82323
LMI		 1480 "E" gnus-summary-limit-include-expunged
1481 "c" gnus-summary-limit-exclude-childless-dormant
1482 "C" gnus-summary-limit-mark-excluded-as-read)
1483
1484 (gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1485 "n" gnus-summary-next-unread-article
1486 "p" gnus-summary-prev-unread-article
1487 "N" gnus-summary-next-article
1488 "P" gnus-summary-prev-article
1489 "\C-n" gnus-summary-next-same-subject
1490 "\C-p" gnus-summary-prev-same-subject
1491 "\M-n" gnus-summary-next-unread-subject
1492 "\M-p" gnus-summary-prev-unread-subject
1493 "f" gnus-summary-first-unread-article
1494 "b" gnus-summary-best-unread-article
1495 "j" gnus-summary-goto-article
1496 "g" gnus-summary-goto-subject
1497 "l" gnus-summary-goto-last-article
a8151ef7 1498 "o" gnus-summary-pop-article)
eec82323
LMI		 1499
1500 (gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1501 "k" gnus-summary-kill-thread
1502 "l" gnus-summary-lower-thread
1503 "i" gnus-summary-raise-thread
1504 "T" gnus-summary-toggle-threads
1505 "t" gnus-summary-rethread-current
1506 "^" gnus-summary-reparent-thread
1507 "s" gnus-summary-show-thread
1508 "S" gnus-summary-show-all-threads
1509 "h" gnus-summary-hide-thread
1510 "H" gnus-summary-hide-all-threads
1511 "n" gnus-summary-next-thread
1512 "p" gnus-summary-prev-thread
1513 "u" gnus-summary-up-thread
1514 "o" gnus-summary-top-thread
1515 "d" gnus-summary-down-thread
1516 "#" gnus-uu-mark-thread
1517 "\M-#" gnus-uu-unmark-thread)
1518
1519 (gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1520 "g" gnus-summary-prepare
1521 "c" gnus-summary-insert-cached-articles)
1522
1523 (gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1524 "c" gnus-summary-catchup-and-exit
1525 "C" gnus-summary-catchup-all-and-exit
1526 "E" gnus-summary-exit-no-update
1527 "Q" gnus-summary-exit
1528 "Z" gnus-summary-exit
1529 "n" gnus-summary-catchup-and-goto-next-group
1530 "R" gnus-summary-reselect-current-group
1531 "G" gnus-summary-rescan-group
1532 "N" gnus-summary-next-group
1533 "s" gnus-summary-save-newsrc
1534 "P" gnus-summary-prev-group)
1535
1536 (gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
1537 " " gnus-summary-next-page
1538 "n" gnus-summary-next-page
1539 "\177" gnus-summary-prev-page
1540 [delete] gnus-summary-prev-page
1541 "p" gnus-summary-prev-page
1542 "\r" gnus-summary-scroll-up
6748645f 1543 "\M-\r" gnus-summary-scroll-down
eec82323
LMI		 1544 "<" gnus-summary-beginning-of-article
1545 ">" gnus-summary-end-of-article
1546 "b" gnus-summary-beginning-of-article
1547 "e" gnus-summary-end-of-article
1548 "^" gnus-summary-refer-parent-article
1549 "r" gnus-summary-refer-parent-article
16409b0b 1550 "D" gnus-summary-enter-digest-group
eec82323 1551 "R" gnus-summary-refer-references
6748645f 1552 "T" gnus-summary-refer-thread
eec82323
LMI		 1553 "g" gnus-summary-show-article
1554 "s" gnus-summary-isearch-article
16409b0b
GM		 1555 "P" gnus-summary-print-article
1556 "t" gnus-article-babel)
eec82323
LMI		 1557
1558 (gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
1559 "b" gnus-article-add-buttons
1560 "B" gnus-article-add-buttons-to-head
1561 "o" gnus-article-treat-overstrike
1562 "e" gnus-article-emphasize
1563 "w" gnus-article-fill-cited-article
16409b0b
GM		 1564 "Q" gnus-article-fill-long-lines
1565 "C" gnus-article-capitalize-sentences
eec82323
LMI		 1566 "c" gnus-article-remove-cr
1567 "q" gnus-article-de-quoted-unreadable
16409b0b
GM		 1568 "6" gnus-article-de-base64-unreadable
1569 "Z" gnus-article-decode-HZ
1570 "h" gnus-article-wash-html
eec82323
LMI		 1571 "f" gnus-article-display-x-face
1572 "l" gnus-summary-stop-page-breaking
1573 "r" gnus-summary-caesar-message
16409b0b 1574 "t" gnus-summary-toggle-header
eec82323 1575 "v" gnus-summary-verbose-headers
16409b0b 1576 "H" gnus-article-strip-headers-in-body
6748645f 1577 "d" gnus-article-treat-dumbquotes)
eec82323
LMI		 1578
1579 (gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
1580 "a" gnus-article-hide
1581 "h" gnus-article-hide-headers
1582 "b" gnus-article-hide-boring-headers
1583 "s" gnus-article-hide-signature
1584 "c" gnus-article-hide-citation
6748645f 1585 "C" gnus-article-hide-citation-in-followups
16409b0b 1586 "l" gnus-article-hide-list-identifiers
eec82323 1587 "p" gnus-article-hide-pgp
16409b0b 1588 "B" gnus-article-strip-banner
eec82323
LMI		 1589 "P" gnus-article-hide-pem
1590 "\C-c" gnus-article-hide-citation-maybe)
1591
1592 (gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
1593 "a" gnus-article-highlight
1594 "h" gnus-article-highlight-headers
1595 "c" gnus-article-highlight-citation
1596 "s" gnus-article-highlight-signature)
1597
16409b0b
GM		 1598 (gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
1599 "w" gnus-article-decode-mime-words
1600 "c" gnus-article-decode-charset
1601 "v" gnus-mime-view-all-parts
1602 "b" gnus-article-view-part)
1603
eec82323
LMI		 1604 (gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
1605 "z" gnus-article-date-ut
1606 "u" gnus-article-date-ut
1607 "l" gnus-article-date-local
1608 "e" gnus-article-date-lapsed
1609 "o" gnus-article-date-original
6748645f 1610 "i" gnus-article-date-iso8601
eec82323
LMI		 1611 "s" gnus-article-date-user)
1612
1613 (gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
1614 "t" gnus-article-remove-trailing-blank-lines
1615 "l" gnus-article-strip-leading-blank-lines
1616 "m" gnus-article-strip-multiple-blank-lines
1617 "a" gnus-article-strip-blank-lines
6748645f 1618 "A" gnus-article-strip-all-blank-lines
16409b0b
GM		 1619 "s" gnus-article-strip-leading-space
1620 "e" gnus-article-strip-trailing-space)
eec82323
LMI		 1621
1622 (gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
1623 "v" gnus-version
1624 "f" gnus-summary-fetch-faq
1625 "d" gnus-summary-describe-group
1626 "h" gnus-summary-describe-briefly
1627 "i" gnus-info-find-node)
1628
1629 (gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
1630 "e" gnus-summary-expire-articles
1631 "\M-\C-e" gnus-summary-expire-articles-now
1632 "\177" gnus-summary-delete-article
1633 [delete] gnus-summary-delete-article
16409b0b 1634 [backspace] gnus-summary-delete-article
eec82323
LMI		 1635 "m" gnus-summary-move-article
1636 "r" gnus-summary-respool-article
1637 "w" gnus-summary-edit-article
1638 "c" gnus-summary-copy-article
1639 "B" gnus-summary-crosspost-article
1640 "q" gnus-summary-respool-query
6748645f 1641 "t" gnus-summary-respool-trace
eec82323
LMI		 1642 "i" gnus-summary-import-article
1643 "p" gnus-summary-article-posted-p)
1644
1645 (gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
1646 "o" gnus-summary-save-article
1647 "m" gnus-summary-save-article-mail
1648 "F" gnus-summary-write-article-file
1649 "r" gnus-summary-save-article-rmail
1650 "f" gnus-summary-save-article-file
1651 "b" gnus-summary-save-article-body-file
1652 "h" gnus-summary-save-article-folder
1653 "v" gnus-summary-save-article-vm
1654 "p" gnus-summary-pipe-output
16409b0b
GM		 1655 "s" gnus-soup-add-article)
1656
1657 (gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
1658 "b" gnus-summary-display-buttonized
1659 "m" gnus-summary-repair-multipart
1660 "v" gnus-article-view-part
1661 "o" gnus-article-save-part
1662 "c" gnus-article-copy-part
1663 "e" gnus-article-externalize-part
1664 "i" gnus-article-inline-part
1665 "|" gnus-article-pipe-part))
eec82323
LMI		 1666
1667(defun gnus-summary-make-menu-bar ()
1668 (gnus-turn-off-edit-menu 'summary)
1669
1670 (unless (boundp 'gnus-summary-misc-menu)
1671
1672 (easy-menu-define
1673 gnus-summary-kill-menu gnus-summary-mode-map ""
1674 (cons
1675 "Score"
1676 (nconc
1677 (list
1678 ["Enter score..." gnus-summary-score-entry t]
1679 ["Customize" gnus-score-customize t])
1680 (gnus-make-score-map 'increase)
1681 (gnus-make-score-map 'lower)
1682 '(("Mark"
1683 ["Kill below" gnus-summary-kill-below t]
1684 ["Mark above" gnus-summary-mark-above t]
1685 ["Tick above" gnus-summary-tick-above t]
1686 ["Clear above" gnus-summary-clear-above t])
1687 ["Current score" gnus-summary-current-score t]
1688 ["Set score" gnus-summary-set-score t]
1689 ["Switch current score file..." gnus-score-change-score-file t]
1690 ["Set mark below..." gnus-score-set-mark-below t]
1691 ["Set expunge below..." gnus-score-set-expunge-below t]
1692 ["Edit current score file" gnus-score-edit-current-scores t]
1693 ["Edit score file" gnus-score-edit-file t]
1694 ["Trace score" gnus-score-find-trace t]
1695 ["Find words" gnus-score-find-favourite-words t]
1696 ["Rescore buffer" gnus-summary-rescore t]
1697 ["Increase score..." gnus-summary-increase-score t]
1698 ["Lower score..." gnus-summary-lower-score t]))))
1699
6748645f
LMI		 1700 ;; Define both the Article menu in the summary buffer and the equivalent
1701 ;; Commands menu in the article buffer here for consistency.
1702 (let ((innards
1703 '(("Hide"
1704 ["All" gnus-article-hide t]
1705 ["Headers" gnus-article-hide-headers t]
1706 ["Signature" gnus-article-hide-signature t]
1707 ["Citation" gnus-article-hide-citation t]
16409b0b 1708 ["List identifiers" gnus-article-hide-list-identifiers t]
6748645f 1709 ["PGP" gnus-article-hide-pgp t]
16409b0b 1710 ["Banner" gnus-article-strip-banner t]
6748645f
LMI		 1711 ["Boring headers" gnus-article-hide-boring-headers t])
1712 ("Highlight"
1713 ["All" gnus-article-highlight t]
1714 ["Headers" gnus-article-highlight-headers t]
1715 ["Signature" gnus-article-highlight-signature t]
1716 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM		 1717 ("MIME"
1718 ["Words" gnus-article-decode-mime-words t]
1719 ["Charset" gnus-article-decode-charset t]
1720 ["QP" gnus-article-de-quoted-unreadable t]
1721 ["Base64" gnus-article-de-base64-unreadable t]
1722 ["View all" gnus-mime-view-all-parts t])
6748645f
LMI		 1723 ("Date"
1724 ["Local" gnus-article-date-local t]
1725 ["ISO8601" gnus-article-date-iso8601 t]
1726 ["UT" gnus-article-date-ut t]
1727 ["Original" gnus-article-date-original t]
1728 ["Lapsed" gnus-article-date-lapsed t]
1729 ["User-defined" gnus-article-date-user t])
1730 ("Washing"
1731 ("Remove Blanks"
1732 ["Leading" gnus-article-strip-leading-blank-lines t]
1733 ["Multiple" gnus-article-strip-multiple-blank-lines t]
1734 ["Trailing" gnus-article-remove-trailing-blank-lines t]
1735 ["All of the above" gnus-article-strip-blank-lines t]
1736 ["All" gnus-article-strip-all-blank-lines t]
16409b0b
GM		 1737 ["Leading space" gnus-article-strip-leading-space t]
1738 ["Trailing space" gnus-article-strip-trailing-space t])
6748645f
LMI		 1739 ["Overstrike" gnus-article-treat-overstrike t]
1740 ["Dumb quotes" gnus-article-treat-dumbquotes t]
1741 ["Emphasis" gnus-article-emphasize t]
1742 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b
GM		 1743 ["Fill long lines" gnus-article-fill-long-lines t]
1744 ["Capitalize sentences" gnus-article-capitalize-sentences t]
6748645f
LMI		 1745 ["CR" gnus-article-remove-cr t]
1746 ["Show X-Face" gnus-article-display-x-face t]
1747 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
16409b0b 1748 ["Base64" gnus-article-de-base64-unreadable t]
60bd5589
DL		 1749 ["Rot 13" gnus-summary-caesar-message
1750 :help "\"Caesar rotate\" article by 13"]
6748645f
LMI		 1751 ["Unix pipe" gnus-summary-pipe-message t]
1752 ["Add buttons" gnus-article-add-buttons t]
1753 ["Add buttons to head" gnus-article-add-buttons-to-head t]
1754 ["Stop page breaking" gnus-summary-stop-page-breaking t]
6748645f 1755 ["Verbose header" gnus-summary-verbose-headers t]
16409b0b
GM		 1756 ["Toggle header" gnus-summary-toggle-header t]
1757 ["Html" gnus-article-wash-html t]
1758 ["HZ" gnus-article-decode-HZ t])
6748645f 1759 ("Output"
60bd5589
DL		 1760 ["Save in default format" gnus-summary-save-article
1761 :help "Save article using default method"]
1762 ["Save in file" gnus-summary-save-article-file
1763 :help "Save article in file"]
6748645f
LMI		 1764 ["Save in Unix mail format" gnus-summary-save-article-mail t]
1765 ["Save in MH folder" gnus-summary-save-article-folder t]
1766 ["Save in VM folder" gnus-summary-save-article-vm t]
1767 ["Save in RMAIL mbox" gnus-summary-save-article-rmail t]
1768 ["Save body in file" gnus-summary-save-article-body-file t]
1769 ["Pipe through a filter" gnus-summary-pipe-output t]
1770 ["Add to SOUP packet" gnus-soup-add-article t]
1771 ["Print" gnus-summary-print-article t])
1772 ("Backend"
1773 ["Respool article..." gnus-summary-respool-article t]
1774 ["Move article..." gnus-summary-move-article
1775 (gnus-check-backend-function
1776 'request-move-article gnus-newsgroup-name)]
1777 ["Copy article..." gnus-summary-copy-article t]
1778 ["Crosspost article..." gnus-summary-crosspost-article
1779 (gnus-check-backend-function
1780 'request-replace-article gnus-newsgroup-name)]
1781 ["Import file..." gnus-summary-import-article t]
1782 ["Check if posted" gnus-summary-article-posted-p t]
1783 ["Edit article" gnus-summary-edit-article
1784 (not (gnus-group-read-only-p))]
1785 ["Delete article" gnus-summary-delete-article
1786 (gnus-check-backend-function
1787 'request-expire-articles gnus-newsgroup-name)]
1788 ["Query respool" gnus-summary-respool-query t]
1789 ["Trace respool" gnus-summary-respool-trace t]
1790 ["Delete expirable articles" gnus-summary-expire-articles-now
1791 (gnus-check-backend-function
1792 'request-expire-articles gnus-newsgroup-name)])
1793 ("Extract"
60bd5589
DL		 1794 ["Uudecode" gnus-uu-decode-uu
1795 :help "Decode uuencoded article(s)"]
6748645f
LMI		 1796 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
1797 ["Unshar" gnus-uu-decode-unshar t]
1798 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
1799 ["Save" gnus-uu-decode-save t]
1800 ["Binhex" gnus-uu-decode-binhex t]
1801 ["Postscript" gnus-uu-decode-postscript t])
1802 ("Cache"
1803 ["Enter article" gnus-cache-enter-article t]
1804 ["Remove article" gnus-cache-remove-article t])
16409b0b 1805 ["Translate" gnus-article-babel t]
6748645f
LMI		 1806 ["Select article buffer" gnus-summary-select-article-buffer t]
1807 ["Enter digest buffer" gnus-summary-enter-digest-group t]
1808 ["Isearch article..." gnus-summary-isearch-article t]
1809 ["Beginning of the article" gnus-summary-beginning-of-article t]
1810 ["End of the article" gnus-summary-end-of-article t]
1811 ["Fetch parent of article" gnus-summary-refer-parent-article t]
1812 ["Fetch referenced articles" gnus-summary-refer-references t]
1813 ["Fetch current thread" gnus-summary-refer-thread t]
1814 ["Fetch article with id..." gnus-summary-refer-article t]
1815 ["Redisplay" gnus-summary-show-article t])))
1816 (easy-menu-define
1817 gnus-summary-article-menu gnus-summary-mode-map ""
1818 (cons "Article" innards))
1819
1653df0f
SZ		 1820 (if (not (keymapp gnus-summary-article-menu))
1821 (easy-menu-define
1822 gnus-article-commands-menu gnus-article-mode-map ""
1823 (cons "Commands" innards))
1824 ;; in Emacs, don't share menu.
1825 (setq gnus-article-commands-menu
1826 (copy-keymap gnus-summary-article-menu))
1827 (define-key gnus-article-mode-map [menu-bar commands]
1828 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI		 1829
1830 (easy-menu-define
1831 gnus-summary-thread-menu gnus-summary-mode-map ""
1832 '("Threads"
1833 ["Toggle threading" gnus-summary-toggle-threads t]
1834 ["Hide threads" gnus-summary-hide-all-threads t]
1835 ["Show threads" gnus-summary-show-all-threads t]
1836 ["Hide thread" gnus-summary-hide-thread t]
1837 ["Show thread" gnus-summary-show-thread t]
1838 ["Go to next thread" gnus-summary-next-thread t]
1839 ["Go to previous thread" gnus-summary-prev-thread t]
1840 ["Go down thread" gnus-summary-down-thread t]
1841 ["Go up thread" gnus-summary-up-thread t]
1842 ["Top of thread" gnus-summary-top-thread t]
1843 ["Mark thread as read" gnus-summary-kill-thread t]
1844 ["Lower thread score" gnus-summary-lower-thread t]
1845 ["Raise thread score" gnus-summary-raise-thread t]
16409b0b 1846 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI		 1847
1848 (easy-menu-define
1849 gnus-summary-post-menu gnus-summary-mode-map ""
1850 '("Post"
60bd5589
DL		 1851 ["Post an article" gnus-summary-post-news
1852 :help "Post an article"]
1853 ["Followup" gnus-summary-followup
1854 :help "Post followup to this article"]
1855 ["Followup and yank" gnus-summary-followup-with-original
1856 :help "Post followup to this article, quoting its contents"]
eec82323 1857 ["Supersede article" gnus-summary-supersede-article t]
60bd5589
DL		 1858 ["Cancel article" gnus-summary-cancel-article
1859 :help "Cancel an article you posted"]
eec82323
LMI		 1860 ["Reply" gnus-summary-reply t]
1861 ["Reply and yank" gnus-summary-reply-with-original t]
1862 ["Wide reply" gnus-summary-wide-reply t]
60bd5589
DL		 1863 ["Wide reply and yank" gnus-summary-wide-reply-with-original
1864 :help "Mail a reply, quoting this article"]
eec82323
LMI		 1865 ["Mail forward" gnus-summary-mail-forward t]
1866 ["Post forward" gnus-summary-post-forward t]
1867 ["Digest and mail" gnus-uu-digest-mail-forward t]
1868 ["Digest and post" gnus-uu-digest-post-forward t]
1869 ["Resend message" gnus-summary-resend-message t]
1870 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
1871 ["Send a mail" gnus-summary-mail-other-window t]
60bd5589
DL		 1872 ["Uuencode and post" gnus-uu-post-news
1873 :help "Post a uuencoded article"]
eec82323
LMI		 1874 ["Followup via news" gnus-summary-followup-to-mail t]
1875 ["Followup via news and yank"
1876 gnus-summary-followup-to-mail-with-original t]
1877 ;;("Draft"
1878 ;;["Send" gnus-summary-send-draft t]
1879 ;;["Send bounced" gnus-resend-bounced-mail t])
1880 ))
1881
1882 (easy-menu-define
1883 gnus-summary-misc-menu gnus-summary-mode-map ""
1884 '("Misc"
1885 ("Mark Read"
1886 ["Mark as read" gnus-summary-mark-as-read-forward t]
1887 ["Mark same subject and select"
1888 gnus-summary-kill-same-subject-and-select t]
1889 ["Mark same subject" gnus-summary-kill-same-subject t]
60bd5589
DL		 1890 ["Catchup" gnus-summary-catchup
1891 :help "Mark unread articles in this group as read"]
eec82323
LMI		 1892 ["Catchup all" gnus-summary-catchup-all t]
1893 ["Catchup to here" gnus-summary-catchup-to-here t]
1894 ["Catchup region" gnus-summary-mark-region-as-read t]
1895 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
1896 ("Mark Various"
1897 ["Tick" gnus-summary-tick-article-forward t]
1898 ["Mark as dormant" gnus-summary-mark-as-dormant t]
1899 ["Remove marks" gnus-summary-clear-mark-forward t]
1900 ["Set expirable mark" gnus-summary-mark-as-expirable t]
1901 ["Set bookmark" gnus-summary-set-bookmark t]
1902 ["Remove bookmark" gnus-summary-remove-bookmark t])
1903 ("Mark Limit"
1904 ["Marks..." gnus-summary-limit-to-marks t]
1905 ["Subject..." gnus-summary-limit-to-subject t]
1906 ["Author..." gnus-summary-limit-to-author t]
1907 ["Age..." gnus-summary-limit-to-age t]
16409b0b 1908 ["Extra..." gnus-summary-limit-to-extra t]
eec82323
LMI		 1909 ["Score" gnus-summary-limit-to-score t]
1910 ["Unread" gnus-summary-limit-to-unread t]
1911 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
1912 ["Articles" gnus-summary-limit-to-articles t]
1913 ["Pop limit" gnus-summary-pop-limit t]
1914 ["Show dormant" gnus-summary-limit-include-dormant t]
1915 ["Hide childless dormant"
1916 gnus-summary-limit-exclude-childless-dormant t]
1917 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
16409b0b 1918 ["Hide marked" gnus-summary-limit-exclude-marks t]
eec82323
LMI		 1919 ["Show expunged" gnus-summary-show-all-expunged t])
1920 ("Process Mark"
1921 ["Set mark" gnus-summary-mark-as-processable t]
1922 ["Remove mark" gnus-summary-unmark-as-processable t]
1923 ["Remove all marks" gnus-summary-unmark-all-processable t]
1924 ["Mark above" gnus-uu-mark-over t]
1925 ["Mark series" gnus-uu-mark-series t]
1926 ["Mark region" gnus-uu-mark-region t]
6748645f 1927 ["Unmark region" gnus-uu-unmark-region t]
eec82323 1928 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
6748645f 1929 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
eec82323
LMI		 1930 ["Mark all" gnus-uu-mark-all t]
1931 ["Mark buffer" gnus-uu-mark-buffer t]
1932 ["Mark sparse" gnus-uu-mark-sparse t]
1933 ["Mark thread" gnus-uu-mark-thread t]
1934 ["Unmark thread" gnus-uu-unmark-thread t]
1935 ("Process Mark Sets"
1936 ["Kill" gnus-summary-kill-process-mark t]
1937 ["Yank" gnus-summary-yank-process-mark
1938 gnus-newsgroup-process-stack]
1939 ["Save" gnus-summary-save-process-mark t]))
1940 ("Scroll article"
60bd5589
DL		 1941 ["Page forward" gnus-summary-next-page
1942 :help "Show next page of article"]
1943 ["Page backward" gnus-summary-prev-page
1944 :help "Show previous page of article"]
eec82323
LMI		 1945 ["Line forward" gnus-summary-scroll-up t])
1946 ("Move"
1947 ["Next unread article" gnus-summary-next-unread-article t]
1948 ["Previous unread article" gnus-summary-prev-unread-article t]
1949 ["Next article" gnus-summary-next-article t]
1950 ["Previous article" gnus-summary-prev-article t]
1951 ["Next unread subject" gnus-summary-next-unread-subject t]
1952 ["Previous unread subject" gnus-summary-prev-unread-subject t]
1953 ["Next article same subject" gnus-summary-next-same-subject t]
1954 ["Previous article same subject" gnus-summary-prev-same-subject t]
1955 ["First unread article" gnus-summary-first-unread-article t]
1956 ["Best unread article" gnus-summary-best-unread-article t]
1957 ["Go to subject number..." gnus-summary-goto-subject t]
1958 ["Go to article number..." gnus-summary-goto-article t]
1959 ["Go to the last article" gnus-summary-goto-last-article t]
1960 ["Pop article off history" gnus-summary-pop-article t])
1961 ("Sort"
1962 ["Sort by number" gnus-summary-sort-by-number t]
1963 ["Sort by author" gnus-summary-sort-by-author t]
1964 ["Sort by subject" gnus-summary-sort-by-subject t]
1965 ["Sort by date" gnus-summary-sort-by-date t]
1966 ["Sort by score" gnus-summary-sort-by-score t]
16409b0b
GM		 1967 ["Sort by lines" gnus-summary-sort-by-lines t]
1968 ["Sort by characters" gnus-summary-sort-by-chars t])
eec82323
LMI		 1969 ("Help"
1970 ["Fetch group FAQ" gnus-summary-fetch-faq t]
1971 ["Describe group" gnus-summary-describe-group t]
1972 ["Read manual" gnus-info-find-node t])
1973 ("Modes"
1974 ["Pick and read" gnus-pick-mode t]
1975 ["Binary" gnus-binary-mode t])
1976 ("Regeneration"
1977 ["Regenerate" gnus-summary-prepare t]
1978 ["Insert cached articles" gnus-summary-insert-cached-articles t]
1979 ["Toggle threading" gnus-summary-toggle-threads t])
1980 ["Filter articles..." gnus-summary-execute-command t]
1981 ["Run command on subjects..." gnus-summary-universal-argument t]
1982 ["Search articles forward..." gnus-summary-search-article-forward t]
1983 ["Search articles backward..." gnus-summary-search-article-backward t]
1984 ["Toggle line truncation" gnus-summary-toggle-truncation t]
1985 ["Expand window" gnus-summary-expand-window t]
1986 ["Expire expirable articles" gnus-summary-expire-articles
1987 (gnus-check-backend-function
1988 'request-expire-articles gnus-newsgroup-name)]
1989 ["Edit local kill file" gnus-summary-edit-local-kill t]
1990 ["Edit main kill file" gnus-summary-edit-global-kill t]
6748645f 1991 ["Edit group parameters" gnus-summary-edit-parameters t]
16409b0b 1992 ["Customize group parameters" gnus-summary-customize-parameters t]
6748645f 1993 ["Send a bug report" gnus-bug t]
eec82323 1994 ("Exit"
60bd5589
DL		 1995 ["Catchup and exit" gnus-summary-catchup-and-exit
1996 :help "Mark unread articles in this group as read, then exit"]
6748645f 1997 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
eec82323 1998 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
60bd5589
DL		 1999 ["Exit group" gnus-summary-exit
2000 :help "Exit current group, return to group selection mode"]
eec82323
LMI		 2001 ["Exit group without updating" gnus-summary-exit-no-update t]
2002 ["Exit and goto next group" gnus-summary-next-group t]
2003 ["Exit and goto prev group" gnus-summary-prev-group t]
2004 ["Reselect group" gnus-summary-reselect-current-group t]
2005 ["Rescan group" gnus-summary-rescan-group t]
2006 ["Update dribble" gnus-summary-save-newsrc t])))
2007
6748645f 2008 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2009
60bd5589
DL		 2010(defvar gnus-summary-tool-bar-map nil)
2011
9a0026a6 2012;; Emacs 21 tool bar. Should be no-op otherwise.
60bd5589
DL		 2013(defun gnus-summary-make-tool-bar ()
2014 (if (and (fboundp 'tool-bar-add-item-from-menu)
2015 (default-value 'tool-bar-mode)
2016 (not gnus-summary-tool-bar-map))
2017 (setq gnus-summary-tool-bar-map
2018 (let ((tool-bar-map (make-sparse-keymap)))
2019 (tool-bar-add-item-from-menu
2020 'gnus-summary-prev-unread "prev-ur" gnus-summary-mode-map)
2021 (tool-bar-add-item-from-menu
2022 'gnus-summary-next-unread "next-ur" gnus-summary-mode-map)
2023 (tool-bar-add-item-from-menu
2024 'gnus-summary-post-news "post" gnus-summary-mode-map)
2025 (tool-bar-add-item-from-menu
2026 'gnus-summary-followup-with-original "fuwo" gnus-summary-mode-map)
2027 (tool-bar-add-item-from-menu
2028 'gnus-summary-followup "followup" gnus-summary-mode-map)
2029 (tool-bar-add-item-from-menu
2030 'gnus-summary-reply-with-original "reply-wo" gnus-summary-mode-map)
2031 (tool-bar-add-item-from-menu
2032 'gnus-summary-reply "reply" gnus-summary-mode-map)
2033 (tool-bar-add-item-from-menu
2034 'gnus-summary-caesar-message "rot13" gnus-summary-mode-map)
2035 (tool-bar-add-item-from-menu
2036 'gnus-uu-decode-uu "uu-decode" gnus-summary-mode-map)
2037 (tool-bar-add-item-from-menu
2038 'gnus-summary-save-article-file "save-aif" gnus-summary-mode-map)
2039 (tool-bar-add-item-from-menu
2040 'gnus-summary-save-article "save-art" gnus-summary-mode-map)
2041 (tool-bar-add-item-from-menu
2042 'gnus-uu-post-news "uu-post" gnus-summary-mode-map)
2043 (tool-bar-add-item-from-menu
2044 'gnus-summary-catchup "catchup" gnus-summary-mode-map)
2045 (tool-bar-add-item-from-menu
2046 'gnus-summary-catchup-and-exit "cu-exit" gnus-summary-mode-map)
2047 (tool-bar-add-item-from-menu
2048 'gnus-summary-exit "exit-summ" gnus-summary-mode-map)
2049 tool-bar-map)))
2050 (if gnus-summary-tool-bar-map
2051 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
2052
eec82323
LMI		 2053(defun gnus-score-set-default (var value)
2054 "A version of set that updates the GNU Emacs menu-bar."
2055 (set var value)
2056 ;; It is the message that forces the active status to be updated.
2057 (message ""))
2058
2059(defun gnus-make-score-map (type)
2060 "Make a summary score map of type TYPE."
2061 (if t
2062 nil
2063 (let ((headers '(("author" "from" string)
2064 ("subject" "subject" string)
2065 ("article body" "body" string)
2066 ("article head" "head" string)
2067 ("xref" "xref" string)
16409b0b 2068 ("extra header" "extra" string)
eec82323
LMI		 2069 ("lines" "lines" number)
2070 ("followups to author" "followup" string)))
2071 (types '((number ("less than" <)
2072 ("greater than" >)
2073 ("equal" =))
2074 (string ("substring" s)
2075 ("exact string" e)
2076 ("fuzzy string" f)
2077 ("regexp" r))))
2078 (perms '(("temporary" (current-time-string))
2079 ("permanent" nil)
2080 ("immediate" now)))
2081 header)
2082 (list
2083 (apply
2084 'nconc
2085 (list
2086 (if (eq type 'lower)
2087 "Lower score"
2088 "Increase score"))
2089 (let (outh)
2090 (while headers
2091 (setq header (car headers))
2092 (setq outh
2093 (cons
2094 (apply
2095 'nconc
2096 (list (car header))
2097 (let ((ts (cdr (assoc (nth 2 header) types)))
2098 outt)
2099 (while ts
2100 (setq outt
2101 (cons
2102 (apply
2103 'nconc
2104 (list (caar ts))
2105 (let ((ps perms)
2106 outp)
2107 (while ps
2108 (setq outp
2109 (cons
2110 (vector
2111 (caar ps)
2112 (list
2113 'gnus-summary-score-entry
2114 (nth 1 header)
2115 (if (or (string= (nth 1 header)
2116 "head")
2117 (string= (nth 1 header)
2118 "body"))
2119 ""
2120 (list 'gnus-summary-header
2121 (nth 1 header)))
2122 (list 'quote (nth 1 (car ts)))
16409b0b
GM		 2123 (list 'gnus-score-delta-default
2124 nil)
eec82323
LMI		 2125 (nth 1 (car ps))
2126 t)
2127 t)
2128 outp))
2129 (setq ps (cdr ps)))
2130 (list (nreverse outp))))
2131 outt))
2132 (setq ts (cdr ts)))
2133 (list (nreverse outt))))
2134 outh))
2135 (setq headers (cdr headers)))
2136 (list (nreverse outh))))))))
2137
2138\f
2139
2140(defun gnus-summary-mode (&optional group)
2141 "Major mode for reading articles.
2142
2143All normal editing commands are switched off.
2144\\<gnus-summary-mode-map>
2145Each line in this buffer represents one article. To read an
2146article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
2147and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
2148respectively.
2149
2150You can also post articles and send mail from this buffer. To
2151follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
2152of an article, type `\\[gnus-summary-reply]'.
2153
2154There are approx. one gazillion commands you can execute in this
2155buffer; read the info pages for more information (`\\[gnus-info-find-node]').
2156
2157The following commands are available:
2158
2159\\{gnus-summary-mode-map}"
2160 (interactive)
eec82323 2161 (kill-all-local-variables)
60bd5589
DL		 2162 (when (gnus-visual-p 'summary-menu 'menu)
2163 (gnus-summary-make-menu-bar)
2164 (gnus-summary-make-tool-bar))
eec82323
LMI		 2165 (gnus-summary-make-local-variables)
2166 (gnus-make-thread-indent-array)
2167 (gnus-simplify-mode-line)
2168 (setq major-mode 'gnus-summary-mode)
2169 (setq mode-name "Summary")
2170 (make-local-variable 'minor-mode-alist)
2171 (use-local-map gnus-summary-mode-map)
16409b0b 2172 (buffer-disable-undo)
eec82323
LMI		 2173 (setq buffer-read-only t) ;Disable modification
2174 (setq truncate-lines t)
2175 (setq selective-display t)
2176 (setq selective-display-ellipses t) ;Display `...'
2177 (gnus-summary-set-display-table)
2178 (gnus-set-default-directory)
2179 (setq gnus-newsgroup-name group)
2180 (make-local-variable 'gnus-summary-line-format)
2181 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI		 2182 (make-local-variable 'gnus-summary-dummy-line-format)
2183 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 2184 (make-local-variable 'gnus-summary-mark-positions)
6748645f
LMI		 2185 (make-local-hook 'pre-command-hook)
2186 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
2187 (gnus-run-hooks 'gnus-summary-mode-hook)
d4dfaa19 2188 (mm-enable-multibyte-mule4)
eec82323
LMI		 2189 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
2190 (gnus-update-summary-mark-positions))
2191
2192(defun gnus-summary-make-local-variables ()
2193 "Make all the local summary buffer variables."
16409b0b
GM		 2194 (let (global)
2195 (dolist (local gnus-summary-local-variables)
eec82323
LMI		 2196 (if (consp local)
2197 (progn
2198 (if (eq (cdr local) 'global)
2199 ;; Copy the global value of the variable.
2200 (setq global (symbol-value (car local)))
2201 ;; Use the value from the list.
2202 (setq global (eval (cdr local))))
16409b0b 2203 (set (make-local-variable (car local)) global))
eec82323 2204 ;; Simple nil-valued local variable.
16409b0b 2205 (set (make-local-variable local) nil)))))
eec82323
LMI		 2206
2207(defun gnus-summary-clear-local-variables ()
2208 (let ((locals gnus-summary-local-variables))
2209 (while locals
2210 (if (consp (car locals))
2211 (and (vectorp (caar locals))
2212 (set (caar locals) nil))
2213 (and (vectorp (car locals))
2214 (set (car locals) nil)))
2215 (setq locals (cdr locals)))))
2216
2217;; Summary data functions.
2218
2219(defmacro gnus-data-number (data)
2220 `(car ,data))
2221
2222(defmacro gnus-data-set-number (data number)
2223 `(setcar ,data ,number))
2224
2225(defmacro gnus-data-mark (data)
2226 `(nth 1 ,data))
2227
2228(defmacro gnus-data-set-mark (data mark)
2229 `(setcar (nthcdr 1 ,data) ,mark))
2230
2231(defmacro gnus-data-pos (data)
2232 `(nth 2 ,data))
2233
2234(defmacro gnus-data-set-pos (data pos)
2235 `(setcar (nthcdr 2 ,data) ,pos))
2236
2237(defmacro gnus-data-header (data)
2238 `(nth 3 ,data))
2239
2240(defmacro gnus-data-set-header (data header)
2241 `(setf (nth 3 ,data) ,header))
2242
2243(defmacro gnus-data-level (data)
2244 `(nth 4 ,data))
2245
2246(defmacro gnus-data-unread-p (data)
2247 `(= (nth 1 ,data) gnus-unread-mark))
2248
2249(defmacro gnus-data-read-p (data)
2250 `(/= (nth 1 ,data) gnus-unread-mark))
2251
2252(defmacro gnus-data-pseudo-p (data)
2253 `(consp (nth 3 ,data)))
2254
2255(defmacro gnus-data-find (number)
2256 `(assq ,number gnus-newsgroup-data))
2257
2258(defmacro gnus-data-find-list (number &optional data)
2259 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
2260 (memq (assq ,number bdata)
2261 bdata)))
2262
2263(defmacro gnus-data-make (number mark pos header level)
2264 `(list ,number ,mark ,pos ,header ,level))
2265
2266(defun gnus-data-enter (after-article number mark pos header level offset)
2267 (let ((data (gnus-data-find-list after-article)))
2268 (unless data
2269 (error "No such article: %d" after-article))
2270 (setcdr data (cons (gnus-data-make number mark pos header level)
2271 (cdr data)))
2272 (setq gnus-newsgroup-data-reverse nil)
2273 (gnus-data-update-list (cddr data) offset)))
2274
2275(defun gnus-data-enter-list (after-article list &optional offset)
2276 (when list
2277 (let ((data (and after-article (gnus-data-find-list after-article)))
2278 (ilist list))
6748645f
LMI		 2279 (if (not (or data
2280 after-article))
2281 (let ((odata gnus-newsgroup-data))
2282 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 2283 (when offset
6748645f
LMI		 2284 (gnus-data-update-list odata offset)))
2285 ;; Find the last element in the list to be spliced into the main
2286 ;; list.
2287 (while (cdr list)
2288 (setq list (cdr list)))
2289 (if (not data)
2290 (progn
2291 (setcdr list gnus-newsgroup-data)
2292 (setq gnus-newsgroup-data ilist)
2293 (when offset
2294 (gnus-data-update-list (cdr list) offset)))
2295 (setcdr list (cdr data))
2296 (setcdr data ilist)
2297 (when offset
2298 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI		 2299 (setq gnus-newsgroup-data-reverse nil))))
2300
2301(defun gnus-data-remove (article &optional offset)
2302 (let ((data gnus-newsgroup-data))
2303 (if (= (gnus-data-number (car data)) article)
2304 (progn
2305 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
2306 gnus-newsgroup-data-reverse nil)
2307 (when offset
2308 (gnus-data-update-list gnus-newsgroup-data offset)))
2309 (while (cdr data)
2310 (when (= (gnus-data-number (cadr data)) article)
2311 (setcdr data (cddr data))
2312 (when offset
2313 (gnus-data-update-list (cdr data) offset))
2314 (setq data nil
2315 gnus-newsgroup-data-reverse nil))
2316 (setq data (cdr data))))))
2317
2318(defmacro gnus-data-list (backward)
2319 `(if ,backward
2320 (or gnus-newsgroup-data-reverse
2321 (setq gnus-newsgroup-data-reverse
2322 (reverse gnus-newsgroup-data)))
2323 gnus-newsgroup-data))
2324
2325(defun gnus-data-update-list (data offset)
2326 "Add OFFSET to the POS of all data entries in DATA."
6748645f 2327 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI		 2328 (while data
2329 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
2330 (setq data (cdr data))))
2331
eec82323
LMI		 2332(defun gnus-summary-article-pseudo-p (article)
2333 "Say whether this article is a pseudo article or not."
2334 (not (vectorp (gnus-data-header (gnus-data-find article)))))
2335
2336(defmacro gnus-summary-article-sparse-p (article)
2337 "Say whether this article is a sparse article or not."
a8151ef7 2338 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI		 2339
2340(defmacro gnus-summary-article-ancient-p (article)
2341 "Say whether this article is a sparse article or not."
2342 `(memq ,article gnus-newsgroup-ancient))
2343
2344(defun gnus-article-parent-p (number)
2345 "Say whether this article is a parent or not."
2346 (let ((data (gnus-data-find-list number)))
2347 (and (cdr data) ; There has to be an article after...
2348 (< (gnus-data-level (car data)) ; And it has to have a higher level.
2349 (gnus-data-level (nth 1 data))))))
2350
2351(defun gnus-article-children (number)
2352 "Return a list of all children to NUMBER."
2353 (let* ((data (gnus-data-find-list number))
2354 (level (gnus-data-level (car data)))
2355 children)
2356 (setq data (cdr data))
2357 (while (and data
2358 (= (gnus-data-level (car data)) (1+ level)))
2359 (push (gnus-data-number (car data)) children)
2360 (setq data (cdr data)))
2361 children))
2362
2363(defmacro gnus-summary-skip-intangible ()
2364 "If the current article is intangible, then jump to a different article."
2365 '(let ((to (get-text-property (point) 'gnus-intangible)))
2366 (and to (gnus-summary-goto-subject to))))
2367
2368(defmacro gnus-summary-article-intangible-p ()
2369 "Say whether this article is intangible or not."
2370 '(get-text-property (point) 'gnus-intangible))
2371
2372(defun gnus-article-read-p (article)
2373 "Say whether ARTICLE is read or not."
2374 (not (or (memq article gnus-newsgroup-marked)
2375 (memq article gnus-newsgroup-unreads)
2376 (memq article gnus-newsgroup-unselected)
2377 (memq article gnus-newsgroup-dormant))))
2378
2379;; Some summary mode macros.
2380
2381(defmacro gnus-summary-article-number ()
2382 "The article number of the article on the current line.
2383If there isn's an article number here, then we return the current
2384article number."
2385 '(progn
2386 (gnus-summary-skip-intangible)
2387 (or (get-text-property (point) 'gnus-number)
2388 (gnus-summary-last-subject))))
2389
2390(defmacro gnus-summary-article-header (&optional number)
6748645f 2391 "Return the header of article NUMBER."
eec82323
LMI		 2392 `(gnus-data-header (gnus-data-find
2393 ,(or number '(gnus-summary-article-number)))))
2394
2395(defmacro gnus-summary-thread-level (&optional number)
6748645f 2396 "Return the level of thread that starts with article NUMBER."
eec82323
LMI		 2397 `(if (and (eq gnus-summary-make-false-root 'dummy)
2398 (get-text-property (point) 'gnus-intangible))
2399 0
2400 (gnus-data-level (gnus-data-find
2401 ,(or number '(gnus-summary-article-number))))))
2402
2403(defmacro gnus-summary-article-mark (&optional number)
6748645f 2404 "Return the mark of article NUMBER."
eec82323
LMI		 2405 `(gnus-data-mark (gnus-data-find
2406 ,(or number '(gnus-summary-article-number)))))
2407
2408(defmacro gnus-summary-article-pos (&optional number)
6748645f 2409 "Return the position of the line of article NUMBER."
eec82323
LMI		 2410 `(gnus-data-pos (gnus-data-find
2411 ,(or number '(gnus-summary-article-number)))))
2412
2413(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
2414(defmacro gnus-summary-article-subject (&optional number)
2415 "Return current subject string or nil if nothing."
2416 `(let ((headers
2417 ,(if number
2418 `(gnus-data-header (assq ,number gnus-newsgroup-data))
2419 '(gnus-data-header (assq (gnus-summary-article-number)
2420 gnus-newsgroup-data)))))
2421 (and headers
2422 (vectorp headers)
2423 (mail-header-subject headers))))
2424
2425(defmacro gnus-summary-article-score (&optional number)
2426 "Return current article score."
2427 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
2428 gnus-newsgroup-scored))
2429 gnus-summary-default-score 0))
2430
2431(defun gnus-summary-article-children (&optional number)
6748645f 2432 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI		 2433 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
2434 (level (gnus-data-level (car data)))
2435 l children)
2436 (while (and (setq data (cdr data))
2437 (> (setq l (gnus-data-level (car data))) level))
2438 (and (= (1+ level) l)
2439 (push (gnus-data-number (car data))
2440 children)))
2441 (nreverse children)))
2442
2443(defun gnus-summary-article-parent (&optional number)
6748645f 2444 "Return the article number of the parent of article NUMBER."
eec82323
LMI		 2445 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
2446 (gnus-data-list t)))
2447 (level (gnus-data-level (car data))))
2448 (if (zerop level)
2449 () ; This is a root.
2450 ;; We search until we find an article with a level less than
2451 ;; this one. That function has to be the parent.
2452 (while (and (setq data (cdr data))
2453 (not (< (gnus-data-level (car data)) level))))
2454 (and data (gnus-data-number (car data))))))
2455
2456(defun gnus-unread-mark-p (mark)
2457 "Say whether MARK is the unread mark."
2458 (= mark gnus-unread-mark))
2459
2460(defun gnus-read-mark-p (mark)
2461 "Say whether MARK is one of the marks that mark as read.
2462This is all marks except unread, ticked, dormant, and expirable."
2463 (not (or (= mark gnus-unread-mark)
2464 (= mark gnus-ticked-mark)
2465 (= mark gnus-dormant-mark)
2466 (= mark gnus-expirable-mark))))
2467
2468(defmacro gnus-article-mark (number)
6748645f
LMI		 2469 "Return the MARK of article NUMBER.
2470This macro should only be used when computing the mark the \"first\"
2471time; i.e., when generating the summary lines. After that,
2472`gnus-summary-article-mark' should be used to examine the
2473marks of articles."
eec82323 2474 `(cond
6748645f
LMI		 2475 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
2476 ((memq ,number gnus-newsgroup-undownloaded) gnus-undownloaded-mark)
2477 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI		 2478 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
2479 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
2480 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
2481 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
2482 (t (or (cdr (assq ,number gnus-newsgroup-reads))
2483 gnus-ancient-mark))))
2484
2485;; Saving hidden threads.
2486
2487(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
2488(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
2489
2490(defmacro gnus-save-hidden-threads (&rest forms)
2491 "Save hidden threads, eval FORMS, and restore the hidden threads."
2492 (let ((config (make-symbol "config")))
2493 `(let ((,config (gnus-hidden-threads-configuration)))
2494 (unwind-protect
2495 (save-excursion
2496 ,@forms)
2497 (gnus-restore-hidden-threads-configuration ,config)))))
2498
107ecebb
AS		 2499(defun gnus-data-compute-positions ()
2500 "Compute the positions of all articles."
2501 (setq gnus-newsgroup-data-reverse nil)
2502 (let ((data gnus-newsgroup-data))
2503 (save-excursion
2504 (gnus-save-hidden-threads
2505 (gnus-summary-show-all-threads)
2506 (goto-char (point-min))
2507 (while data
2508 (while (get-text-property (point) 'gnus-intangible)
2509 (forward-line 1))
2510 (gnus-data-set-pos (car data) (+ (point) 3))
2511 (setq data (cdr data))
2512 (forward-line 1))))))
2513
16409b0b
GM		 2514(defun gnus-hidden-threads-configuration ()
2515 "Return the current hidden threads configuration."
2516 (save-excursion
2517 (let (config)
2518 (goto-char (point-min))
2519 (while (search-forward "\r" nil t)
2520 (push (1- (point)) config))
2521 config)))
2522
2523(defun gnus-restore-hidden-threads-configuration (config)
2524 "Restore hidden threads configuration from CONFIG."
2525 (save-excursion
2526 (let (point buffer-read-only)
2527 (while (setq point (pop config))
2528 (when (and (< point (point-max))
2529 (goto-char point)
2530 (eq (char-after) ?\n))
2531 (subst-char-in-region point (1+ point) ?\n ?\r))))))
2532
eec82323
LMI		 2533;; Various summary mode internalish functions.
2534
2535(defun gnus-mouse-pick-article (e)
2536 (interactive "e")
2537 (mouse-set-point e)
2538 (gnus-summary-next-page nil t))
2539
2540(defun gnus-summary-set-display-table ()
16409b0b
GM		 2541 "Change the display table.
2542Odd characters have a tendency to mess
2543up nicely formatted displays - we make all possible glyphs
2544display only a single character."
eec82323
LMI		 2545
2546 ;; We start from the standard display table, if any.
2547 (let ((table (or (copy-sequence standard-display-table)
2548 (make-display-table)))
2549 (i 32))
2550 ;; Nix out all the control chars...
2551 (while (>= (setq i (1- i)) 0)
2552 (aset table i [??]))
2553 ;; ... but not newline and cr, of course. (cr is necessary for the
2554 ;; selective display).
2555 (aset table ?\n nil)
2556 (aset table ?\r nil)
6748645f
LMI		 2557 ;; We keep TAB as well.
2558 (aset table ?\t nil)
eec82323
LMI		 2559 ;; We nix out any glyphs over 126 that are not set already.
2560 (let ((i 256))
2561 (while (>= (setq i (1- i)) 127)
2562 ;; Only modify if the entry is nil.
2563 (unless (aref table i)
2564 (aset table i [??]))))
2565 (setq buffer-display-table table)))
2566
2567(defun gnus-summary-setup-buffer (group)
2568 "Initialize summary buffer."
2569 (let ((buffer (concat "*Summary " group "*")))
2570 (if (get-buffer buffer)
2571 (progn
2572 (set-buffer buffer)
2573 (setq gnus-summary-buffer (current-buffer))
2574 (not gnus-newsgroup-prepared))
2575 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 2576 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI		 2577 (gnus-summary-mode group)
2578 (when gnus-carpal
2579 (gnus-carpal-setup-buffer 'summary))
2580 (unless gnus-single-article-buffer
2581 (make-local-variable 'gnus-article-buffer)
2582 (make-local-variable 'gnus-article-current)
2583 (make-local-variable 'gnus-original-article-buffer))
2584 (setq gnus-newsgroup-name group)
2585 t)))
2586
2587(defun gnus-set-global-variables ()
16409b0b
GM		 2588 "Set the global equivalents of the buffer-local variables.
2589They are set to the latest values they had. These reflect the summary
2590buffer that was in action when the last article was fetched."
eec82323
LMI		 2591 (when (eq major-mode 'gnus-summary-mode)
2592 (setq gnus-summary-buffer (current-buffer))
2593 (let ((name gnus-newsgroup-name)
2594 (marked gnus-newsgroup-marked)
2595 (unread gnus-newsgroup-unreads)
2596 (headers gnus-current-headers)
2597 (data gnus-newsgroup-data)
2598 (summary gnus-summary-buffer)
2599 (article-buffer gnus-article-buffer)
2600 (original gnus-original-article-buffer)
2601 (gac gnus-article-current)
2602 (reffed gnus-reffed-article-number)
16409b0b
GM		 2603 (score-file gnus-current-score-file)
2604 (default-charset gnus-newsgroup-charset))
eec82323
LMI		 2605 (save-excursion
2606 (set-buffer gnus-group-buffer)
6748645f
LMI		 2607 (setq gnus-newsgroup-name name
2608 gnus-newsgroup-marked marked
2609 gnus-newsgroup-unreads unread
2610 gnus-current-headers headers
2611 gnus-newsgroup-data data
2612 gnus-article-current gac
2613 gnus-summary-buffer summary
2614 gnus-article-buffer article-buffer
2615 gnus-original-article-buffer original
2616 gnus-reffed-article-number reffed
16409b0b
GM		 2617 gnus-current-score-file score-file
2618 gnus-newsgroup-charset default-charset)
eec82323
LMI		 2619 ;; The article buffer also has local variables.
2620 (when (gnus-buffer-live-p gnus-article-buffer)
2621 (set-buffer gnus-article-buffer)
2622 (setq gnus-summary-buffer summary))))))
2623
2624(defun gnus-summary-article-unread-p (article)
2625 "Say whether ARTICLE is unread or not."
2626 (memq article gnus-newsgroup-unreads))
2627
2628(defun gnus-summary-first-article-p (&optional article)
2629 "Return whether ARTICLE is the first article in the buffer."
2630 (if (not (setq article (or article (gnus-summary-article-number))))
2631 nil
2632 (eq article (caar gnus-newsgroup-data))))
2633
2634(defun gnus-summary-last-article-p (&optional article)
2635 "Return whether ARTICLE is the last article in the buffer."
2636 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM		 2637 ;; All non-existent numbers are the last article. :-)
2638 t
eec82323
LMI		 2639 (not (cdr (gnus-data-find-list article)))))
2640
2641(defun gnus-make-thread-indent-array ()
2642 (let ((n 200))
2643 (unless (and gnus-thread-indent-array
2644 (= gnus-thread-indent-level gnus-thread-indent-array-level))
2645 (setq gnus-thread-indent-array (make-vector 201 "")
2646 gnus-thread-indent-array-level gnus-thread-indent-level)
2647 (while (>= n 0)
2648 (aset gnus-thread-indent-array n
2649 (make-string (* n gnus-thread-indent-level) ? ))
2650 (setq n (1- n))))))
2651
2652(defun gnus-update-summary-mark-positions ()
2653 "Compute where the summary marks are to go."
2654 (save-excursion
6748645f 2655 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323
LMI		 2656 (set-buffer gnus-summary-buffer))
2657 (let ((gnus-replied-mark 129)
2658 (gnus-score-below-mark 130)
2659 (gnus-score-over-mark 130)
6748645f 2660 (gnus-download-mark 131)
eec82323 2661 (spec gnus-summary-line-format-spec)
6748645f 2662 gnus-visual pos)
eec82323
LMI		 2663 (save-excursion
2664 (gnus-set-work-buffer)
6748645f
LMI		 2665 (let ((gnus-summary-line-format-spec spec)
2666 (gnus-newsgroup-downloadable '((0 . t))))
eec82323 2667 (gnus-summary-insert-line
16409b0b 2668 [0 "" "" "" "" "" 0 0 "" nil] 0 nil 128 t nil "" nil 1)
eec82323
LMI		 2669 (goto-char (point-min))
2670 (setq pos (list (cons 'unread (and (search-forward "\200" nil t)
2671 (- (point) 2)))))
2672 (goto-char (point-min))
2673 (push (cons 'replied (and (search-forward "\201" nil t)
2674 (- (point) 2)))
2675 pos)
2676 (goto-char (point-min))
2677 (push (cons 'score (and (search-forward "\202" nil t) (- (point) 2)))
6748645f
LMI		 2678 pos)
2679 (goto-char (point-min))
2680 (push (cons 'download
2681 (and (search-forward "\203" nil t) (- (point) 2)))
eec82323
LMI		 2682 pos)))
2683 (setq gnus-summary-mark-positions pos))))
2684
2685(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
2686 "Insert a dummy root in the summary buffer."
2687 (beginning-of-line)
2688 (gnus-add-text-properties
2689 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
2690 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
2691
16409b0b
GM		 2692(defun gnus-summary-from-or-to-or-newsgroups (header)
2693 (let ((to (cdr (assq 'To (mail-header-extra header))))
2694 (newsgroups (cdr (assq 'Newsgroups (mail-header-extra header))))
2695 (mail-parse-charset gnus-newsgroup-charset)
2696 (mail-parse-ignored-charsets
2697 (save-excursion (set-buffer gnus-summary-buffer)
2698 gnus-newsgroup-ignored-charsets)))
2699 (cond
2700 ((and to
2701 gnus-ignored-from-addresses
2702 (string-match gnus-ignored-from-addresses
2703 (mail-header-from header)))
2704 (concat "-> "
2705 (or (car (funcall gnus-extract-address-components
2706 (funcall
2707 gnus-decode-encoded-word-function to)))
2708 (funcall gnus-decode-encoded-word-function to))))
2709 ((and newsgroups
2710 gnus-ignored-from-addresses
2711 (string-match gnus-ignored-from-addresses
2712 (mail-header-from header)))
2713 (concat "=> " newsgroups))
2714 (t
2715 (or (car (funcall gnus-extract-address-components
2716 (mail-header-from header)))
2717 (mail-header-from header))))))
2718
eec82323
LMI		 2719(defun gnus-summary-insert-line (gnus-tmp-header
2720 gnus-tmp-level gnus-tmp-current
2721 gnus-tmp-unread gnus-tmp-replied
2722 gnus-tmp-expirable gnus-tmp-subject-or-nil
2723 &optional gnus-tmp-dummy gnus-tmp-score
2724 gnus-tmp-process)
2725 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
2726 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
2727 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
2728 (gnus-tmp-score-char
2729 (if (or (null gnus-summary-default-score)
2730 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
2731 gnus-summary-zcore-fuzz))
16409b0b 2732 ? ;Whitespace
eec82323
LMI		 2733 (if (< gnus-tmp-score gnus-summary-default-score)
2734 gnus-score-below-mark gnus-score-over-mark)))
2735 (gnus-tmp-replied
2736 (cond (gnus-tmp-process gnus-process-mark)
2737 ((memq gnus-tmp-current gnus-newsgroup-cached)
2738 gnus-cached-mark)
2739 (gnus-tmp-replied gnus-replied-mark)
2740 ((memq gnus-tmp-current gnus-newsgroup-saved)
2741 gnus-saved-mark)
2742 (t gnus-unread-mark)))
2743 (gnus-tmp-from (mail-header-from gnus-tmp-header))
2744 (gnus-tmp-name
2745 (cond
2746 ((string-match "<[^>]+> *$" gnus-tmp-from)
2747 (let ((beg (match-beginning 0)))
2748 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
2749 (substring gnus-tmp-from (1+ (match-beginning 0))
2750 (1- (match-end 0))))
2751 (substring gnus-tmp-from 0 beg))))
2752 ((string-match "(.+)" gnus-tmp-from)
2753 (substring gnus-tmp-from
2754 (1+ (match-beginning 0)) (1- (match-end 0))))
2755 (t gnus-tmp-from)))
2756 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
2757 (gnus-tmp-number (mail-header-number gnus-tmp-header))
2758 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
2759 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
2760 (buffer-read-only nil))
2761 (when (string= gnus-tmp-name "")
2762 (setq gnus-tmp-name gnus-tmp-from))
2763 (unless (numberp gnus-tmp-lines)
2764 (setq gnus-tmp-lines 0))
16409b0b 2765 (gnus-put-text-property
eec82323
LMI		 2766 (point)
2767 (progn (eval gnus-summary-line-format-spec) (point))
2768 'gnus-number gnus-tmp-number)
2769 (when (gnus-visual-p 'summary-highlight 'highlight)
2770 (forward-line -1)
6748645f 2771 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI		 2772 (forward-line 1))))
2773
2774(defun gnus-summary-update-line (&optional dont-update)
16409b0b 2775 "Update summary line after change."
eec82323
LMI		 2776 (when (and gnus-summary-default-score
2777 (not gnus-summary-inhibit-highlight))
2778 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
2779 (article (gnus-summary-article-number))
2780 (score (gnus-summary-article-score article)))
2781 (unless dont-update
2782 (if (and gnus-summary-mark-below
2783 (< (gnus-summary-article-score)
2784 gnus-summary-mark-below))
2785 ;; This article has a low score, so we mark it as read.
2786 (when (memq article gnus-newsgroup-unreads)
2787 (gnus-summary-mark-article-as-read gnus-low-score-mark))
2788 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
2789 ;; This article was previously marked as read on account
2790 ;; of a low score, but now it has risen, so we mark it as
2791 ;; unread.
2792 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
2793 (gnus-summary-update-mark
2794 (if (or (null gnus-summary-default-score)
2795 (<= (abs (- score gnus-summary-default-score))
2796 gnus-summary-zcore-fuzz))
16409b0b 2797 ? ;Whitespace
eec82323
LMI		 2798 (if (< score gnus-summary-default-score)
2799 gnus-score-below-mark gnus-score-over-mark))
2800 'score))
2801 ;; Do visual highlighting.
2802 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 2803 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI		 2804
2805(defvar gnus-tmp-new-adopts nil)
2806
2807(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
2808 "Return the number of articles in THREAD.
2809This may be 0 in some cases -- if none of the articles in
2810the thread are to be displayed."
2811 (let* ((number
2812 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
2813 (cond
2814 ((not (listp thread))
2815 1)
2816 ((and (consp thread) (cdr thread))
2817 (apply
2818 '+ 1 (mapcar
2819 'gnus-summary-number-of-articles-in-thread (cdr thread))))
2820 ((null thread)
2821 1)
2822 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
2823 1)
2824 (t 0))))
2825 (when (and level (zerop level) gnus-tmp-new-adopts)
2826 (incf number
2827 (apply '+ (mapcar
2828 'gnus-summary-number-of-articles-in-thread
2829 gnus-tmp-new-adopts))))
2830 (if char
2831 (if (> number 1) gnus-not-empty-thread-mark
2832 gnus-empty-thread-mark)
2833 number)))
2834
2835(defun gnus-summary-set-local-parameters (group)
2836 "Go through the local params of GROUP and set all variable specs in that list."
2837 (let ((params (gnus-group-find-parameter group))
2838 elem)
2839 (while params
2840 (setq elem (car params)
2841 params (cdr params))
2842 (and (consp elem) ; Has to be a cons.
2843 (consp (cdr elem)) ; The cdr has to be a list.
2844 (symbolp (car elem)) ; Has to be a symbol in there.
6748645f 2845 (not (memq (car elem) '(quit-config))) ; Ignore quit-config.
eec82323
LMI		 2846 (ignore-errors ; So we set it.
2847 (make-local-variable (car elem))
2848 (set (car elem) (eval (nth 1 elem))))))))
2849
2850(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI		 2851 kill-buffer no-display backward
2852 select-articles)
eec82323
LMI		 2853 "Start reading news in newsgroup GROUP.
2854If SHOW-ALL is non-nil, already read articles are also listed.
2855If NO-ARTICLE is non-nil, no article is selected initially.
2856If NO-DISPLAY, don't generate a summary buffer."
2857 (let (result)
2858 (while (and group
2859 (null (setq result
2860 (let ((gnus-auto-select-next nil))
6748645f
LMI		 2861 (or (gnus-summary-read-group-1
2862 group show-all no-article
2863 kill-buffer no-display
2864 select-articles)
2865 (setq show-all nil
16409b0b 2866 select-articles nil)))))
eec82323
LMI		 2867 (eq gnus-auto-select-next 'quietly))
2868 (set-buffer gnus-group-buffer)
6748645f
LMI		 2869 ;; The entry function called above goes to the next
2870 ;; group automatically, so we go two groups back
2871 ;; if we are searching for the previous group.
2872 (when backward
2873 (gnus-group-prev-unread-group 2))
eec82323
LMI		 2874 (if (not (equal group (gnus-group-group-name)))
2875 (setq group (gnus-group-group-name))
2876 (setq group nil)))
2877 result))
2878
2879(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI		 2880 kill-buffer no-display
2881 &optional select-articles)
eec82323
LMI		 2882 ;; Killed foreign groups can't be entered.
2883 (when (and (not (gnus-group-native-p group))
2884 (not (gnus-gethash group gnus-newsrc-hashtb)))
2885 (error "Dead non-native groups can't be entered"))
2886 (gnus-message 5 "Retrieving newsgroup: %s..." group)
2887 (let* ((new-group (gnus-summary-setup-buffer group))
2888 (quit-config (gnus-group-quit-config group))
6748645f
LMI		 2889 (did-select (and new-group (gnus-select-newsgroup
2890 group show-all select-articles))))
eec82323
LMI		 2891 (cond
2892 ;; This summary buffer exists already, so we just select it.
2893 ((not new-group)
2894 (gnus-set-global-variables)
2895 (when kill-buffer
2896 (gnus-kill-or-deaden-summary kill-buffer))
2897 (gnus-configure-windows 'summary 'force)
2898 (gnus-set-mode-line 'summary)
2899 (gnus-summary-position-point)
2900 (message "")
2901 t)
2902 ;; We couldn't select this group.
2903 ((null did-select)
2904 (when (and (eq major-mode 'gnus-summary-mode)
2905 (not (equal (current-buffer) kill-buffer)))
2906 (kill-buffer (current-buffer))
2907 (if (not quit-config)
2908 (progn
6748645f
LMI		 2909 ;; Update the info -- marks might need to be removed,
2910 ;; for instance.
2911 (gnus-summary-update-info)
eec82323
LMI		 2912 (set-buffer gnus-group-buffer)
2913 (gnus-group-jump-to-group group)
2914 (gnus-group-next-unread-group 1))
2915 (gnus-handle-ephemeral-exit quit-config)))
2916 (gnus-message 3 "Can't select group")
2917 nil)
2918 ;; The user did a `C-g' while prompting for number of articles,
2919 ;; so we exit this group.
2920 ((eq did-select 'quit)
2921 (and (eq major-mode 'gnus-summary-mode)
2922 (not (equal (current-buffer) kill-buffer))
2923 (kill-buffer (current-buffer)))
2924 (when kill-buffer
2925 (gnus-kill-or-deaden-summary kill-buffer))
2926 (if (not quit-config)
2927 (progn
2928 (set-buffer gnus-group-buffer)
2929 (gnus-group-jump-to-group group)
2930 (gnus-group-next-unread-group 1)
2931 (gnus-configure-windows 'group 'force))
2932 (gnus-handle-ephemeral-exit quit-config))
2933 ;; Finally signal the quit.
2934 (signal 'quit nil))
2935 ;; The group was successfully selected.
2936 (t
2937 (gnus-set-global-variables)
2938 ;; Save the active value in effect when the group was entered.
2939 (setq gnus-newsgroup-active
2940 (gnus-copy-sequence
2941 (gnus-active gnus-newsgroup-name)))
2942 ;; You can change the summary buffer in some way with this hook.
6748645f 2943 (gnus-run-hooks 'gnus-select-group-hook)
eec82323
LMI		 2944 ;; Set any local variables in the group parameters.
2945 (gnus-summary-set-local-parameters gnus-newsgroup-name)
2946 (gnus-update-format-specifications
2947 nil 'summary 'summary-mode 'summary-dummy)
16409b0b 2948 (gnus-update-summary-mark-positions)
eec82323
LMI		 2949 ;; Do score processing.
2950 (when gnus-use-scoring
2951 (gnus-possibly-score-headers))
2952 ;; Check whether to fill in the gaps in the threads.
2953 (when gnus-build-sparse-threads
2954 (gnus-build-sparse-threads))
2955 ;; Find the initial limit.
2956 (if gnus-show-threads
2957 (if show-all
2958 (let ((gnus-newsgroup-dormant nil))
2959 (gnus-summary-initial-limit show-all))
2960 (gnus-summary-initial-limit show-all))
16409b0b 2961 ;; When untreaded, all articles are always shown.
eec82323
LMI		 2962 (setq gnus-newsgroup-limit
2963 (mapcar
2964 (lambda (header) (mail-header-number header))
2965 gnus-newsgroup-headers)))
2966 ;; Generate the summary buffer.
2967 (unless no-display
2968 (gnus-summary-prepare))
2969 (when gnus-use-trees
2970 (gnus-tree-open group)
2971 (setq gnus-summary-highlight-line-function
2972 'gnus-tree-highlight-article))
2973 ;; If the summary buffer is empty, but there are some low-scored
2974 ;; articles or some excluded dormants, we include these in the
2975 ;; buffer.
2976 (when (and (zerop (buffer-size))
2977 (not no-display))
2978 (cond (gnus-newsgroup-dormant
2979 (gnus-summary-limit-include-dormant))
2980 ((and gnus-newsgroup-scored show-all)
2981 (gnus-summary-limit-include-expunged t))))
2982 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 2983 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI		 2984 (if (and (zerop (buffer-size))
2985 (not no-display))
2986 (progn
2987 ;; This newsgroup is empty.
2988 (gnus-summary-catchup-and-exit nil t)
2989 (gnus-message 6 "No unread news")
2990 (when kill-buffer
2991 (gnus-kill-or-deaden-summary kill-buffer))
2992 ;; Return nil from this function.
2993 nil)
2994 ;; Hide conversation thread subtrees. We cannot do this in
2995 ;; gnus-summary-prepare-hook since kill processing may not
2996 ;; work with hidden articles.
2997 (and gnus-show-threads
2998 gnus-thread-hide-subtree
2999 (gnus-summary-hide-all-threads))
6748645f
LMI		 3000 (when kill-buffer
3001 (gnus-kill-or-deaden-summary kill-buffer))
eec82323
LMI		 3002 ;; Show first unread article if requested.
3003 (if (and (not no-article)
3004 (not no-display)
3005 gnus-newsgroup-unreads
3006 gnus-auto-select-first)
16409b0b
GM		 3007 (progn
3008 (gnus-configure-windows 'summary)
3009 (cond
3010 ((eq gnus-auto-select-first 'best)
3011 (gnus-summary-best-unread-article))
3012 ((eq gnus-auto-select-first t)
3013 (gnus-summary-first-unread-article))
3014 ((gnus-functionp gnus-auto-select-first)
3015 (funcall gnus-auto-select-first))))
eec82323
LMI		 3016 ;; Don't select any articles, just move point to the first
3017 ;; article in the group.
3018 (goto-char (point-min))
3019 (gnus-summary-position-point)
6748645f
LMI		 3020 (gnus-configure-windows 'summary 'force)
3021 (gnus-set-mode-line 'summary))
eec82323
LMI		 3022 (when (get-buffer-window gnus-group-buffer t)
3023 ;; Gotta use windows, because recenter does weird stuff if
3024 ;; the current buffer ain't the displayed window.
3025 (let ((owin (selected-window)))
3026 (select-window (get-buffer-window gnus-group-buffer t))
3027 (when (gnus-group-goto-group group)
3028 (recenter))
3029 (select-window owin)))
3030 ;; Mark this buffer as "prepared".
3031 (setq gnus-newsgroup-prepared t)
6748645f 3032 (gnus-run-hooks 'gnus-summary-prepared-hook)
eec82323
LMI		 3033 t)))))
3034
3035(defun gnus-summary-prepare ()
3036 "Generate the summary buffer."
3037 (interactive)
3038 (let ((buffer-read-only nil))
3039 (erase-buffer)
3040 (setq gnus-newsgroup-data nil
3041 gnus-newsgroup-data-reverse nil)
6748645f 3042 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI		 3043 ;; Generate the buffer, either with threads or without.
3044 (when gnus-newsgroup-headers
3045 (gnus-summary-prepare-threads
3046 (if gnus-show-threads
3047 (gnus-sort-gathered-threads
3048 (funcall gnus-summary-thread-gathering-function
3049 (gnus-sort-threads
3050 (gnus-cut-threads (gnus-make-threads)))))
3051 ;; Unthreaded display.
3052 (gnus-sort-articles gnus-newsgroup-headers))))
3053 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
3054 ;; Call hooks for modifying summary buffer.
3055 (goto-char (point-min))
6748645f 3056 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI		 3057
3058(defsubst gnus-general-simplify-subject (subject)
3059 "Simply subject by the same rules as gnus-gather-threads-by-subject."
3060 (setq subject
3061 (cond
3062 ;; Truncate the subject.
6748645f
LMI		 3063 (gnus-simplify-subject-functions
3064 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI		 3065 ((numberp gnus-summary-gather-subject-limit)
3066 (setq subject (gnus-simplify-subject-re subject))
3067 (if (> (length subject) gnus-summary-gather-subject-limit)
3068 (substring subject 0 gnus-summary-gather-subject-limit)
3069 subject))
3070 ;; Fuzzily simplify it.
3071 ((eq 'fuzzy gnus-summary-gather-subject-limit)
3072 (gnus-simplify-subject-fuzzy subject))
3073 ;; Just remove the leading "Re:".
3074 (t
3075 (gnus-simplify-subject-re subject))))
3076
3077 (if (and gnus-summary-gather-exclude-subject
3078 (string-match gnus-summary-gather-exclude-subject subject))
3079 nil ; This article shouldn't be gathered
3080 subject))
3081
3082(defun gnus-summary-simplify-subject-query ()
3083 "Query where the respool algorithm would put this article."
3084 (interactive)
eec82323
LMI		 3085 (gnus-summary-select-article)
3086 (message (gnus-general-simplify-subject (gnus-summary-article-subject))))
3087
3088(defun gnus-gather-threads-by-subject (threads)
3089 "Gather threads by looking at Subject headers."
3090 (if (not gnus-summary-make-false-root)
3091 threads
3092 (let ((hashtb (gnus-make-hashtable 1024))
3093 (prev threads)
3094 (result threads)
3095 subject hthread whole-subject)
3096 (while threads
3097 (setq subject (gnus-general-simplify-subject
3098 (setq whole-subject (mail-header-subject
3099 (caar threads)))))
3100 (when subject
3101 (if (setq hthread (gnus-gethash subject hashtb))
3102 (progn
3103 ;; We enter a dummy root into the thread, if we
3104 ;; haven't done that already.
3105 (unless (stringp (caar hthread))
3106 (setcar hthread (list whole-subject (car hthread))))
3107 ;; We add this new gathered thread to this gathered
3108 ;; thread.
3109 (setcdr (car hthread)
3110 (nconc (cdar hthread) (list (car threads))))
3111 ;; Remove it from the list of threads.
3112 (setcdr prev (cdr threads))
3113 (setq threads prev))
3114 ;; Enter this thread into the hash table.
3115 (gnus-sethash subject threads hashtb)))
3116 (setq prev threads)
3117 (setq threads (cdr threads)))
3118 result)))
3119
3120(defun gnus-gather-threads-by-references (threads)
3121 "Gather threads by looking at References headers."
3122 (let ((idhashtb (gnus-make-hashtable 1024))
3123 (thhashtb (gnus-make-hashtable 1024))
3124 (prev threads)
3125 (result threads)
3126 ids references id gthread gid entered ref)
3127 (while threads
3128 (when (setq references (mail-header-references (caar threads)))
3129 (setq id (mail-header-id (caar threads))
3130 ids (gnus-split-references references)
3131 entered nil)
3132 (while (setq ref (pop ids))
3133 (setq ids (delete ref ids))
3134 (if (not (setq gid (gnus-gethash ref idhashtb)))
3135 (progn
3136 (gnus-sethash ref id idhashtb)
3137 (gnus-sethash id threads thhashtb))
3138 (setq gthread (gnus-gethash gid thhashtb))
3139 (unless entered
3140 ;; We enter a dummy root into the thread, if we
3141 ;; haven't done that already.
3142 (unless (stringp (caar gthread))
3143 (setcar gthread (list (mail-header-subject (caar gthread))
3144 (car gthread))))
3145 ;; We add this new gathered thread to this gathered
3146 ;; thread.
3147 (setcdr (car gthread)
3148 (nconc (cdar gthread) (list (car threads)))))
3149 ;; Add it into the thread hash table.
3150 (gnus-sethash id gthread thhashtb)
3151 (setq entered t)
3152 ;; Remove it from the list of threads.
3153 (setcdr prev (cdr threads))
3154 (setq threads prev))))
3155 (setq prev threads)
3156 (setq threads (cdr threads)))
3157 result))
3158
3159(defun gnus-sort-gathered-threads (threads)
16409b0b 3160 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI		 3161 (let ((result threads))
3162 (while threads
3163 (when (stringp (caar threads))
3164 (setcdr (car threads)
16409b0b 3165 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI		 3166 (setq threads (cdr threads)))
3167 result))
3168
3169(defun gnus-thread-loop-p (root thread)
3170 "Say whether ROOT is in THREAD."
3171 (let ((stack (list thread))
3172 (infloop 0)
3173 th)
3174 (while (setq thread (pop stack))
3175 (setq th (cdr thread))
3176 (while (and th
3177 (not (eq (caar th) root)))
3178 (pop th))
3179 (if th
3180 ;; We have found a loop.
3181 (let (ref-dep)
3182 (setcdr thread (delq (car th) (cdr thread)))
3183 (if (boundp (setq ref-dep (intern "none"
3184 gnus-newsgroup-dependencies)))
3185 (setcdr (symbol-value ref-dep)
3186 (nconc (cdr (symbol-value ref-dep))
3187 (list (car th))))
3188 (set ref-dep (list nil (car th))))
3189 (setq infloop 1
3190 stack nil))
3191 ;; Push all the subthreads onto the stack.
3192 (push (cdr thread) stack)))
3193 infloop))
3194
3195(defun gnus-make-threads ()
3196 "Go through the dependency hashtb and find the roots. Return all threads."
3197 (let (threads)
3198 (while (catch 'infloop
3199 (mapatoms
3200 (lambda (refs)
3201 ;; Deal with self-referencing References loops.
3202 (when (and (car (symbol-value refs))
3203 (not (zerop
3204 (apply
3205 '+
3206 (mapcar
3207 (lambda (thread)
3208 (gnus-thread-loop-p
3209 (car (symbol-value refs)) thread))
3210 (cdr (symbol-value refs)))))))
3211 (setq threads nil)
3212 (throw 'infloop t))
3213 (unless (car (symbol-value refs))
3214 ;; These threads do not refer back to any other articles,
3215 ;; so they're roots.
3216 (setq threads (append (cdr (symbol-value refs)) threads))))
3217 gnus-newsgroup-dependencies)))
3218 threads))
3219
6748645f 3220;; Build the thread tree.
16409b0b 3221(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI		 3222 "Enter HEADER into the DEPENDENCIES table if it is not already there.
3223
3224If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
3225if it was already present.
3226
3227If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
3228will not be entered in the DEPENDENCIES table. Otherwise duplicate
3229Message-IDs will be renamed be renamed to a unique Message-ID before
3230being entered.
3231
3232Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
3233 (let* ((id (mail-header-id header))
3234 (id-dep (and id (intern id dependencies)))
3235 ref ref-dep ref-header)
3236 ;; Enter this `header' in the `dependencies' table.
3237 (cond
3238 ((not id-dep)
3239 (setq header nil))
3240 ;; The first two cases do the normal part: enter a new `header'
3241 ;; in the `dependencies' table.
3242 ((not (boundp id-dep))
3243 (set id-dep (list header)))
3244 ((null (car (symbol-value id-dep)))
3245 (setcar (symbol-value id-dep) header))
3246
3247 ;; From here the `header' was already present in the
3248 ;; `dependencies' table.
3249 (force-new
3250 ;; Overrides an existing entry;
3251 ;; just set the header part of the entry.
3252 (setcar (symbol-value id-dep) header))
3253
3254 ;; Renames the existing `header' to a unique Message-ID.
3255 ((not gnus-summary-ignore-duplicates)
3256 ;; An article with this Message-ID has already been seen.
3257 ;; We rename the Message-ID.
3258 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
3259 (list header))
3260 (mail-header-set-id header id))
3261
3262 ;; The last case ignores an existing entry, except it adds any
3263 ;; additional Xrefs (in case the two articles came from different
3264 ;; servers.
3265 ;; Also sets `header' to `nil' meaning that the `dependencies'
3266 ;; table was *not* modified.
3267 (t
3268 (mail-header-set-xref
3269 (car (symbol-value id-dep))
3270 (concat (or (mail-header-xref (car (symbol-value id-dep)))
3271 "")
3272 (or (mail-header-xref header) "")))
3273 (setq header nil)))
3274
3275 (when header
3276 ;; First check if that we are not creating a References loop.
3277 (setq ref (gnus-parent-id (mail-header-references header)))
3278 (while (and ref
3279 (setq ref-dep (intern-soft ref dependencies))
3280 (boundp ref-dep)
3281 (setq ref-header (car (symbol-value ref-dep))))
3282 (if (string= id ref)
3283 ;; Yuk! This is a reference loop. Make the article be a
3284 ;; root article.
3285 (progn
3286 (mail-header-set-references (car (symbol-value id-dep)) "none")
3287 (setq ref nil))
3288 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
3289 (setq ref (gnus-parent-id (mail-header-references header)))
3290 (setq ref-dep (intern (or ref "none") dependencies))
3291 (if (boundp ref-dep)
3292 (setcdr (symbol-value ref-dep)
3293 (nconc (cdr (symbol-value ref-dep))
3294 (list (symbol-value id-dep))))
3295 (set ref-dep (list nil (symbol-value id-dep)))))
3296 header))
3297
eec82323
LMI		 3298(defun gnus-build-sparse-threads ()
3299 (let ((headers gnus-newsgroup-headers)
16409b0b 3300 (mail-parse-charset gnus-newsgroup-charset)
6748645f 3301 (gnus-summary-ignore-duplicates t)
eec82323 3302 header references generation relations
6748645f 3303 subject child end new-child date)
eec82323
LMI		 3304 ;; First we create an alist of generations/relations, where
3305 ;; generations is how much we trust the relation, and the relation
3306 ;; is parent/child.
3307 (gnus-message 7 "Making sparse threads...")
3308 (save-excursion
3309 (nnheader-set-temp-buffer " *gnus sparse threads*")
3310 (while (setq header (pop headers))
3311 (when (and (setq references (mail-header-references header))
3312 (not (string= references "")))
3313 (insert references)
3314 (setq child (mail-header-id header)
6748645f
LMI		 3315 subject (mail-header-subject header)
3316 date (mail-header-date header)
3317 generation 0)
eec82323
LMI		 3318 (while (search-backward ">" nil t)
3319 (setq end (1+ (point)))
3320 (when (search-backward "<" nil t)
6748645f 3321 (setq new-child (buffer-substring (point) end))
eec82323 3322 (push (list (incf generation)
6748645f
LMI		 3323 child (setq child new-child)
3324 subject date)
eec82323 3325 relations)))
6748645f
LMI		 3326 (when child
3327 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI		 3328 (erase-buffer)))
3329 (kill-buffer (current-buffer)))
3330 ;; Sort over trustworthiness.
6748645f
LMI		 3331 (mapcar
3332 (lambda (relation)
3333 (when (gnus-dependencies-add-header
3334 (make-full-mail-header
3335 gnus-reffed-article-number
3336 (nth 3 relation) "" (or (nth 4 relation) "")
3337 (nth 1 relation)
3338 (or (nth 2 relation) "") 0 0 "")
3339 gnus-newsgroup-dependencies nil)
3340 (push gnus-reffed-article-number gnus-newsgroup-limit)
3341 (push gnus-reffed-article-number gnus-newsgroup-sparse)
3342 (push (cons gnus-reffed-article-number gnus-sparse-mark)
3343 gnus-newsgroup-reads)
3344 (decf gnus-reffed-article-number)))
3345 (sort relations 'car-less-than-car))
eec82323
LMI		 3346 (gnus-message 7 "Making sparse threads...done")))
3347
3348(defun gnus-build-old-threads ()
3349 ;; Look at all the articles that refer back to old articles, and
3350 ;; fetch the headers for the articles that aren't there. This will
3351 ;; build complete threads - if the roots haven't been expired by the
3352 ;; server, that is.
16409b0b
GM		 3353 (let ((mail-parse-charset gnus-newsgroup-charset)
3354 id heads)
eec82323
LMI		 3355 (mapatoms
3356 (lambda (refs)
3357 (when (not (car (symbol-value refs)))
3358 (setq heads (cdr (symbol-value refs)))
3359 (while heads
3360 (if (memq (mail-header-number (caar heads))
3361 gnus-newsgroup-dormant)
3362 (setq heads (cdr heads))
3363 (setq id (symbol-name refs))
3364 (while (and (setq id (gnus-build-get-header id))
6748645f 3365 (not (car (gnus-id-to-thread id)))))
eec82323
LMI		 3366 (setq heads nil)))))
3367 gnus-newsgroup-dependencies)))
3368
6748645f
LMI		 3369;; This function has to be called with point after the article number
3370;; on the beginning of the line.
3371(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
3372 (let ((eol (gnus-point-at-eol))
3373 (buffer (current-buffer))
3374 header)
3375
3376 ;; overview: [num subject from date id refs chars lines misc]
3377 (unwind-protect
3378 (progn
3379 (narrow-to-region (point) eol)
3380 (unless (eobp)
3381 (forward-char))
3382
3383 (setq header
3384 (make-full-mail-header
3385 number ; number
16409b0b
GM		 3386 (funcall gnus-decode-encoded-word-function
3387 (nnheader-nov-field)) ; subject
3388 (funcall gnus-decode-encoded-word-function
3389 (nnheader-nov-field)) ; from
3390 (nnheader-nov-field) ; date
3391 (nnheader-nov-read-message-id) ; id
3392 (nnheader-nov-field) ; refs
3393 (nnheader-nov-read-integer) ; chars
3394 (nnheader-nov-read-integer) ; lines
3395 (unless (eobp)
8b93df01
DL		 3396 (if (looking-at "Xref: ")
3397 (goto-char (match-end 0)))
3398 (nnheader-nov-field)) ; Xref
16409b0b 3399 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI		 3400
3401 (widen))
3402
3403 (when gnus-alter-header-function
3404 (funcall gnus-alter-header-function header))
3405 (gnus-dependencies-add-header header dependencies force-new)))
3406
eec82323 3407(defun gnus-build-get-header (id)
16409b0b
GM		 3408 "Look through the buffer of NOV lines and find the header to ID.
3409Enter this line into the dependencies hash table, and return
3410the id of the parent article (if any)."
eec82323
LMI		 3411 (let ((deps gnus-newsgroup-dependencies)
3412 found header)
3413 (prog1
3414 (save-excursion
3415 (set-buffer nntp-server-buffer)
3416 (let ((case-fold-search nil))
3417 (goto-char (point-min))
3418 (while (and (not found)
3419 (search-forward id nil t))
3420 (beginning-of-line)
3421 (setq found (looking-at
3422 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
3423 (regexp-quote id))))
3424 (or found (beginning-of-line 2)))
3425 (when found
3426 (beginning-of-line)
3427 (and
3428 (setq header (gnus-nov-parse-line
3429 (read (current-buffer)) deps))
3430 (gnus-parent-id (mail-header-references header))))))
3431 (when header
3432 (let ((number (mail-header-number header)))
3433 (push number gnus-newsgroup-limit)
3434 (push header gnus-newsgroup-headers)
3435 (if (memq number gnus-newsgroup-unselected)
3436 (progn
3437 (push number gnus-newsgroup-unreads)
3438 (setq gnus-newsgroup-unselected
3439 (delq number gnus-newsgroup-unselected)))
3440 (push number gnus-newsgroup-ancient)))))))
3441
6748645f
LMI		 3442(defun gnus-build-all-threads ()
3443 "Read all the headers."
3444 (let ((gnus-summary-ignore-duplicates t)
16409b0b 3445 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI		 3446 (dependencies gnus-newsgroup-dependencies)
3447 header article)
3448 (save-excursion
3449 (set-buffer nntp-server-buffer)
3450 (let ((case-fold-search nil))
3451 (goto-char (point-min))
3452 (while (not (eobp))
3453 (ignore-errors
3454 (setq article (read (current-buffer))
16409b0b 3455 header (gnus-nov-parse-line article dependencies)))
6748645f
LMI		 3456 (when header
3457 (save-excursion
3458 (set-buffer gnus-summary-buffer)
3459 (push header gnus-newsgroup-headers)
3460 (if (memq (setq article (mail-header-number header))
3461 gnus-newsgroup-unselected)
3462 (progn
3463 (push article gnus-newsgroup-unreads)
3464 (setq gnus-newsgroup-unselected
3465 (delq article gnus-newsgroup-unselected)))
3466 (push article gnus-newsgroup-ancient)))
3467 (forward-line 1)))))))
3468
eec82323
LMI		 3469(defun gnus-summary-update-article-line (article header)
3470 "Update the line for ARTICLE using HEADERS."
3471 (let* ((id (mail-header-id header))
3472 (thread (gnus-id-to-thread id)))
3473 (unless thread
3474 (error "Article in no thread"))
3475 ;; Update the thread.
3476 (setcar thread header)
3477 (gnus-summary-goto-subject article)
3478 (let* ((datal (gnus-data-find-list article))
3479 (data (car datal))
3480 (length (when (cdr datal)
3481 (- (gnus-data-pos data)
3482 (gnus-data-pos (cadr datal)))))
3483 (buffer-read-only nil)
3484 (level (gnus-summary-thread-level)))
3485 (gnus-delete-line)
3486 (gnus-summary-insert-line
3487 header level nil (gnus-article-mark article)
3488 (memq article gnus-newsgroup-replied)
3489 (memq article gnus-newsgroup-expirable)
3490 ;; Only insert the Subject string when it's different
3491 ;; from the previous Subject string.
16409b0b
GM		 3492 (if (and
3493 gnus-show-threads
3494 (gnus-subject-equal
3495 (condition-case ()
3496 (mail-header-subject
3497 (gnus-data-header
3498 (cadr
3499 (gnus-data-find-list
3500 article
3501 (gnus-data-list t)))))
3502 ;; Error on the side of excessive subjects.
3503 (error ""))
3504 (mail-header-subject header)))
eec82323
LMI		 3505 ""
3506 (mail-header-subject header))
3507 nil (cdr (assq article gnus-newsgroup-scored))
3508 (memq article gnus-newsgroup-processable))
3509 (when length
3510 (gnus-data-update-list
3511 (cdr datal) (- length (- (gnus-data-pos data) (point))))))))
3512
3513(defun gnus-summary-update-article (article &optional iheader)
3514 "Update ARTICLE in the summary buffer."
3515 (set-buffer gnus-summary-buffer)
6748645f 3516 (let* ((header (gnus-summary-article-header article))
eec82323
LMI		 3517 (id (mail-header-id header))
3518 (data (gnus-data-find article))
3519 (thread (gnus-id-to-thread id))
3520 (references (mail-header-references header))
3521 (parent
3522 (gnus-id-to-thread
3523 (or (gnus-parent-id
3524 (when (and references
3525 (not (equal "" references)))
3526 references))
3527 "none")))
3528 (buffer-read-only nil)
6748645f 3529 (old (car thread)))
eec82323 3530 (when thread
eec82323 3531 (unless iheader
6748645f
LMI		 3532 (setcar thread nil)
3533 (when parent
3534 (delq thread parent)))
3535 (if (gnus-summary-insert-subject id header)
eec82323
LMI		 3536 ;; Set the (possibly) new article number in the data structure.
3537 (gnus-data-set-number data (gnus-id-to-article id))
3538 (setcar thread old)
3539 nil))))
3540
6748645f
LMI		 3541(defun gnus-rebuild-thread (id &optional line)
3542 "Rebuild the thread containing ID.
3543If LINE, insert the rebuilt thread starting on line LINE."
eec82323
LMI		 3544 (let ((buffer-read-only nil)
3545 old-pos current thread data)
3546 (if (not gnus-show-threads)
3547 (setq thread (list (car (gnus-id-to-thread id))))
3548 ;; Get the thread this article is part of.
3549 (setq thread (gnus-remove-thread id)))
3550 (setq old-pos (gnus-point-at-bol))
3551 (setq current (save-excursion
3552 (and (zerop (forward-line -1))
3553 (gnus-summary-article-number))))
3554 ;; If this is a gathered thread, we have to go some re-gathering.
3555 (when (stringp (car thread))
3556 (let ((subject (car thread))
3557 roots thr)
3558 (setq thread (cdr thread))
3559 (while thread
3560 (unless (memq (setq thr (gnus-id-to-thread
3561 (gnus-root-id
3562 (mail-header-id (caar thread)))))
3563 roots)
3564 (push thr roots))
3565 (setq thread (cdr thread)))
3566 ;; We now have all (unique) roots.
3567 (if (= (length roots) 1)
3568 ;; All the loose roots are now one solid root.
3569 (setq thread (car roots))
3570 (setq thread (cons subject (gnus-sort-threads roots))))))
3571 (let (threads)
3572 ;; We then insert this thread into the summary buffer.
6748645f
LMI		 3573 (when line
3574 (goto-char (point-min))
3575 (forward-line (1- line)))
eec82323
LMI		 3576 (let (gnus-newsgroup-data gnus-newsgroup-threads)
3577 (if gnus-show-threads
3578 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
3579 (gnus-summary-prepare-unthreaded thread))
3580 (setq data (nreverse gnus-newsgroup-data))
3581 (setq threads gnus-newsgroup-threads))
3582 ;; We splice the new data into the data structure.
6748645f
LMI		 3583 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
3584 ;;!!! then we want to insert at the beginning of the buffer.
3585 ;;!!! That happens to be true with Gnus now, but that may
3586 ;;!!! change in the future. Perhaps.
3587 (gnus-data-enter-list
3588 (if line nil current) data (- (point) old-pos))
3589 (setq gnus-newsgroup-threads
3590 (nconc threads gnus-newsgroup-threads))
3591 (gnus-data-compute-positions))))
eec82323
LMI		 3592
3593(defun gnus-number-to-header (number)
3594 "Return the header for article NUMBER."
3595 (let ((headers gnus-newsgroup-headers))
3596 (while (and headers
3597 (not (= number (mail-header-number (car headers)))))
3598 (pop headers))
3599 (when headers
3600 (car headers))))
3601
6748645f 3602(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI		 3603 "Return the headers of the GENERATIONeth parent of HEADERS."
3604 (unless generation
3605 (setq generation 1))
a8151ef7 3606 (let ((parent t)
6748645f 3607 (headers in-headers)
a8151ef7 3608 references)
6748645f
LMI		 3609 (while (and parent
3610 (not (zerop generation))
3611 (setq references (mail-header-references headers)))
3612 (setq headers (if (and references
3613 (setq parent (gnus-parent-id references)))
3614 (car (gnus-id-to-thread parent))
3615 nil))
3616 (decf generation))
3617 (and (not (eq headers in-headers))
3618 headers)))
eec82323
LMI		 3619
3620(defun gnus-id-to-thread (id)
3621 "Return the (sub-)thread where ID appears."
3622 (gnus-gethash id gnus-newsgroup-dependencies))
3623
3624(defun gnus-id-to-article (id)
3625 "Return the article number of ID."
3626 (let ((thread (gnus-id-to-thread id)))
3627 (when (and thread
3628 (car thread))
3629 (mail-header-number (car thread)))))
3630
3631(defun gnus-id-to-header (id)
3632 "Return the article headers of ID."
3633 (car (gnus-id-to-thread id)))
3634
3635(defun gnus-article-displayed-root-p (article)
3636 "Say whether ARTICLE is a root(ish) article."
3637 (let ((level (gnus-summary-thread-level article))
3638 (refs (mail-header-references (gnus-summary-article-header article)))
3639 particle)
3640 (cond
3641 ((null level) nil)
3642 ((zerop level) t)
3643 ((null refs) t)
3644 ((null (gnus-parent-id refs)) t)
3645 ((and (= 1 level)
3646 (null (setq particle (gnus-id-to-article
3647 (gnus-parent-id refs))))
3648 (null (gnus-summary-thread-level particle)))))))
3649
3650(defun gnus-root-id (id)
3651 "Return the id of the root of the thread where ID appears."
3652 (let (last-id prev)
6748645f 3653 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI		 3654 (setq last-id id
3655 id (gnus-parent-id (mail-header-references prev))))
3656 last-id))
3657
6748645f
LMI		 3658(defun gnus-articles-in-thread (thread)
3659 "Return the list of articles in THREAD."
3660 (cons (mail-header-number (car thread))
3661 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
3662
eec82323
LMI		 3663(defun gnus-remove-thread (id &optional dont-remove)
3664 "Remove the thread that has ID in it."
6748645f 3665 (let (headers thread last-id)
eec82323 3666 ;; First go up in this thread until we find the root.
6748645f
LMI		 3667 (setq last-id (gnus-root-id id)
3668 headers (message-flatten-list (gnus-id-to-thread last-id)))
eec82323
LMI		 3669 ;; We have now found the real root of this thread. It might have
3670 ;; been gathered into some loose thread, so we have to search
3671 ;; through the threads to find the thread we wanted.
3672 (let ((threads gnus-newsgroup-threads)
3673 sub)
3674 (while threads
3675 (setq sub (car threads))
3676 (if (stringp (car sub))
3677 ;; This is a gathered thread, so we look at the roots
3678 ;; below it to find whether this article is in this
3679 ;; gathered root.
3680 (progn
3681 (setq sub (cdr sub))
3682 (while sub
3683 (when (member (caar sub) headers)
3684 (setq thread (car threads)
3685 threads nil
3686 sub nil))
3687 (setq sub (cdr sub))))
3688 ;; It's an ordinary thread, so we check it.
3689 (when (eq (car sub) (car headers))
3690 (setq thread sub
3691 threads nil)))
3692 (setq threads (cdr threads)))
3693 ;; If this article is in no thread, then it's a root.
3694 (if thread
3695 (unless dont-remove
3696 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 3697 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI		 3698 (when thread
3699 (prog1
3700 thread ; We return this thread.
3701 (unless dont-remove
3702 (if (stringp (car thread))
3703 (progn
3704 ;; If we use dummy roots, then we have to remove the
3705 ;; dummy root as well.
3706 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI		 3707 ;; We go to the dummy root by going to
3708 ;; the first sub-"thread", and then one line up.
3709 (gnus-summary-goto-article
3710 (mail-header-number (caadr thread)))
3711 (forward-line -1)
eec82323
LMI		 3712 (gnus-delete-line)
3713 (gnus-data-compute-positions))
3714 (setq thread (cdr thread))
3715 (while thread
3716 (gnus-remove-thread-1 (car thread))
3717 (setq thread (cdr thread))))
3718 (gnus-remove-thread-1 thread))))))))
3719
3720(defun gnus-remove-thread-1 (thread)
3721 "Remove the thread THREAD recursively."
3722 (let ((number (mail-header-number (pop thread)))
3723 d)
3724 (setq thread (reverse thread))
3725 (while thread
3726 (gnus-remove-thread-1 (pop thread)))
3727 (when (setq d (gnus-data-find number))
3728 (goto-char (gnus-data-pos d))
16409b0b 3729 (gnus-summary-show-thread)
eec82323
LMI		 3730 (gnus-data-remove
3731 number
3732 (- (gnus-point-at-bol)
3733 (prog1
3734 (1+ (gnus-point-at-eol))
3735 (gnus-delete-line)))))))
3736
16409b0b
GM		 3737(defun gnus-sort-threads-1 (threads func)
3738 (sort (mapcar (lambda (thread)
3739 (cons (car thread)
3740 (and (cdr thread)
3741 (gnus-sort-threads-1 (cdr thread) func))))
3742 threads) func))
3743
eec82323
LMI		 3744(defun gnus-sort-threads (threads)
3745 "Sort THREADS."
3746 (if (not gnus-thread-sort-functions)
3747 threads
6748645f 3748 (gnus-message 8 "Sorting threads...")
eec82323 3749 (prog1
16409b0b
GM		 3750 (gnus-sort-threads-1
3751 threads
3752 (gnus-make-sort-function gnus-thread-sort-functions))
6748645f 3753 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI		 3754
3755(defun gnus-sort-articles (articles)
3756 "Sort ARTICLES."
3757 (when gnus-article-sort-functions
3758 (gnus-message 7 "Sorting articles...")
3759 (prog1
3760 (setq gnus-newsgroup-headers
3761 (sort articles (gnus-make-sort-function
3762 gnus-article-sort-functions)))
3763 (gnus-message 7 "Sorting articles...done"))))
3764
3765;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
3766(defmacro gnus-thread-header (thread)
16409b0b
GM		 3767 "Return header of first article in THREAD.
3768Note that THREAD must never, ever be anything else than a variable -
3769using some other form will lead to serious barfage."
eec82323
LMI		 3770 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
3771 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 3772 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI		 3773 (vector thread) 2))
3774
3775(defsubst gnus-article-sort-by-number (h1 h2)
3776 "Sort articles by article number."
3777 (< (mail-header-number h1)
3778 (mail-header-number h2)))
3779
3780(defun gnus-thread-sort-by-number (h1 h2)
3781 "Sort threads by root article number."
3782 (gnus-article-sort-by-number
3783 (gnus-thread-header h1) (gnus-thread-header h2)))
3784
3785(defsubst gnus-article-sort-by-lines (h1 h2)
3786 "Sort articles by article Lines header."
3787 (< (mail-header-lines h1)
3788 (mail-header-lines h2)))
3789
3790(defun gnus-thread-sort-by-lines (h1 h2)
3791 "Sort threads by root article Lines header."
3792 (gnus-article-sort-by-lines
3793 (gnus-thread-header h1) (gnus-thread-header h2)))
3794
16409b0b
GM		 3795(defsubst gnus-article-sort-by-chars (h1 h2)
3796 "Sort articles by octet length."
3797 (< (mail-header-chars h1)
3798 (mail-header-chars h2)))
3799
3800(defun gnus-thread-sort-by-chars (h1 h2)
3801 "Sort threads by root article octet length."
3802 (gnus-article-sort-by-chars
3803 (gnus-thread-header h1) (gnus-thread-header h2)))
3804
eec82323
LMI		 3805(defsubst gnus-article-sort-by-author (h1 h2)
3806 "Sort articles by root author."
3807 (string-lessp
3808 (let ((extract (funcall
3809 gnus-extract-address-components
3810 (mail-header-from h1))))
3811 (or (car extract) (cadr extract) ""))
3812 (let ((extract (funcall
3813 gnus-extract-address-components
3814 (mail-header-from h2))))
3815 (or (car extract) (cadr extract) ""))))
3816
3817(defun gnus-thread-sort-by-author (h1 h2)
3818 "Sort threads by root author."
3819 (gnus-article-sort-by-author
3820 (gnus-thread-header h1) (gnus-thread-header h2)))
3821
3822(defsubst gnus-article-sort-by-subject (h1 h2)
3823 "Sort articles by root subject."
3824 (string-lessp
3825 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
3826 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
3827
3828(defun gnus-thread-sort-by-subject (h1 h2)
3829 "Sort threads by root subject."
3830 (gnus-article-sort-by-subject
3831 (gnus-thread-header h1) (gnus-thread-header h2)))
3832
3833(defsubst gnus-article-sort-by-date (h1 h2)
3834 "Sort articles by root article date."
16409b0b 3835 (time-less-p
eec82323
LMI		 3836 (gnus-date-get-time (mail-header-date h1))
3837 (gnus-date-get-time (mail-header-date h2))))
3838
3839(defun gnus-thread-sort-by-date (h1 h2)
3840 "Sort threads by root article date."
3841 (gnus-article-sort-by-date
3842 (gnus-thread-header h1) (gnus-thread-header h2)))
3843
3844(defsubst gnus-article-sort-by-score (h1 h2)
3845 "Sort articles by root article score.
3846Unscored articles will be counted as having a score of zero."
3847 (> (or (cdr (assq (mail-header-number h1)
3848 gnus-newsgroup-scored))
3849 gnus-summary-default-score 0)
3850 (or (cdr (assq (mail-header-number h2)
3851 gnus-newsgroup-scored))
3852 gnus-summary-default-score 0)))
3853
3854(defun gnus-thread-sort-by-score (h1 h2)
3855 "Sort threads by root article score."
3856 (gnus-article-sort-by-score
3857 (gnus-thread-header h1) (gnus-thread-header h2)))
3858
3859(defun gnus-thread-sort-by-total-score (h1 h2)
3860 "Sort threads by the sum of all scores in the thread.
3861Unscored articles will be counted as having a score of zero."
3862 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
3863
3864(defun gnus-thread-total-score (thread)
16409b0b 3865 ;; This function find the total score of THREAD.
eec82323
LMI		 3866 (cond ((null thread)
3867 0)
3868 ((consp thread)
3869 (if (stringp (car thread))
3870 (apply gnus-thread-score-function 0
3871 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
3872 (gnus-thread-total-score-1 thread)))
3873 (t
3874 (gnus-thread-total-score-1 (list thread)))))
3875
3876(defun gnus-thread-total-score-1 (root)
3877 ;; This function find the total score of the thread below ROOT.
3878 (setq root (car root))
3879 (apply gnus-thread-score-function
3880 (or (append
3881 (mapcar 'gnus-thread-total-score
6748645f 3882 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI		 3883 (when (> (mail-header-number root) 0)
3884 (list (or (cdr (assq (mail-header-number root)
3885 gnus-newsgroup-scored))
3886 gnus-summary-default-score 0))))
3887 (list gnus-summary-default-score)
3888 '(0))))
3889
3890;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
3891(defvar gnus-tmp-prev-subject nil)
3892(defvar gnus-tmp-false-parent nil)
3893(defvar gnus-tmp-root-expunged nil)
3894(defvar gnus-tmp-dummy-line nil)
3895
60bd5589 3896(eval-when-compile (defvar gnus-tmp-header))
16409b0b
GM		 3897(defun gnus-extra-header (type &optional header)
3898 "Return the extra header of TYPE."
3899 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
3900 ""))
3901
eec82323
LMI		 3902(defun gnus-summary-prepare-threads (threads)
3903 "Prepare summary buffer from THREADS and indentation LEVEL.
3904THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
3905or a straight list of headers."
3906 (gnus-message 7 "Generating summary...")
3907
3908 (setq gnus-newsgroup-threads threads)
3909 (beginning-of-line)
3910
3911 (let ((gnus-tmp-level 0)
3912 (default-score (or gnus-summary-default-score 0))
3913 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
3914 thread number subject stack state gnus-tmp-gathered beg-match
3915 new-roots gnus-tmp-new-adopts thread-end
3916 gnus-tmp-header gnus-tmp-unread
3917 gnus-tmp-replied gnus-tmp-subject-or-nil
3918 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
3919 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
3920 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket)
3921
3922 (setq gnus-tmp-prev-subject nil)
3923
3924 (if (vectorp (car threads))
3925 ;; If this is a straight (sic) list of headers, then a
3926 ;; threaded summary display isn't required, so we just create
3927 ;; an unthreaded one.
3928 (gnus-summary-prepare-unthreaded threads)
3929
3930 ;; Do the threaded display.
3931
3932 (while (or threads stack gnus-tmp-new-adopts new-roots)
3933
3934 (if (and (= gnus-tmp-level 0)
eec82323
LMI		 3935 (or (not stack)
3936 (= (caar stack) 0))
3937 (not gnus-tmp-false-parent)
3938 (or gnus-tmp-new-adopts new-roots))
3939 (if gnus-tmp-new-adopts
3940 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
3941 thread (list (car gnus-tmp-new-adopts))
3942 gnus-tmp-header (caar thread)
3943 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
3944 (when new-roots
3945 (setq thread (list (car new-roots))
3946 gnus-tmp-header (caar thread)
3947 new-roots (cdr new-roots))))
3948
3949 (if threads
3950 ;; If there are some threads, we do them before the
3951 ;; threads on the stack.
3952 (setq thread threads
3953 gnus-tmp-header (caar thread))
3954 ;; There were no current threads, so we pop something off
3955 ;; the stack.
3956 (setq state (car stack)
3957 gnus-tmp-level (car state)
3958 thread (cdr state)
3959 stack (cdr stack)
3960 gnus-tmp-header (caar thread))))
3961
3962 (setq gnus-tmp-false-parent nil)
3963 (setq gnus-tmp-root-expunged nil)
3964 (setq thread-end nil)
3965
3966 (if (stringp gnus-tmp-header)
3967 ;; The header is a dummy root.
3968 (cond
3969 ((eq gnus-summary-make-false-root 'adopt)
3970 ;; We let the first article adopt the rest.
3971 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
3972 (cddar thread)))
3973 (setq gnus-tmp-gathered
3974 (nconc (mapcar
3975 (lambda (h) (mail-header-number (car h)))
3976 (cddar thread))
3977 gnus-tmp-gathered))
3978 (setq thread (cons (list (caar thread)
3979 (cadar thread))
3980 (cdr thread)))
3981 (setq gnus-tmp-level -1
3982 gnus-tmp-false-parent t))
3983 ((eq gnus-summary-make-false-root 'empty)
3984 ;; We print adopted articles with empty subject fields.
3985 (setq gnus-tmp-gathered
3986 (nconc (mapcar
3987 (lambda (h) (mail-header-number (car h)))
3988 (cddar thread))
3989 gnus-tmp-gathered))
3990 (setq gnus-tmp-level -1))
3991 ((eq gnus-summary-make-false-root 'dummy)
3992 ;; We remember that we probably want to output a dummy
3993 ;; root.
3994 (setq gnus-tmp-dummy-line gnus-tmp-header)
3995 (setq gnus-tmp-prev-subject gnus-tmp-header))
3996 (t
3997 ;; We do not make a root for the gathered
3998 ;; sub-threads at all.
3999 (setq gnus-tmp-level -1)))
4000
4001 (setq number (mail-header-number gnus-tmp-header)
4002 subject (mail-header-subject gnus-tmp-header))
4003
4004 (cond
4005 ;; If the thread has changed subject, we might want to make
4006 ;; this subthread into a root.
4007 ((and (null gnus-thread-ignore-subject)
4008 (not (zerop gnus-tmp-level))
4009 gnus-tmp-prev-subject
4010 (not (inline
4011 (gnus-subject-equal gnus-tmp-prev-subject subject))))
4012 (setq new-roots (nconc new-roots (list (car thread)))
4013 thread-end t
4014 gnus-tmp-header nil))
4015 ;; If the article lies outside the current limit,
4016 ;; then we do not display it.
4017 ((not (memq number gnus-newsgroup-limit))
4018 (setq gnus-tmp-gathered
4019 (nconc (mapcar
4020 (lambda (h) (mail-header-number (car h)))
4021 (cdar thread))
4022 gnus-tmp-gathered))
4023 (setq gnus-tmp-new-adopts (if (cdar thread)
4024 (append gnus-tmp-new-adopts
4025 (cdar thread))
4026 gnus-tmp-new-adopts)
4027 thread-end t
4028 gnus-tmp-header nil)
4029 (when (zerop gnus-tmp-level)
4030 (setq gnus-tmp-root-expunged t)))
4031 ;; Perhaps this article is to be marked as read?
4032 ((and gnus-summary-mark-below
4033 (< (or (cdr (assq number gnus-newsgroup-scored))
4034 default-score)
4035 gnus-summary-mark-below)
4036 ;; Don't touch sparse articles.
4037 (not (gnus-summary-article-sparse-p number))
4038 (not (gnus-summary-article-ancient-p number)))
4039 (setq gnus-newsgroup-unreads
4040 (delq number gnus-newsgroup-unreads))
4041 (if gnus-newsgroup-auto-expire
4042 (push number gnus-newsgroup-expirable)
4043 (push (cons number gnus-low-score-mark)
4044 gnus-newsgroup-reads))))
4045
4046 (when gnus-tmp-header
4047 ;; We may have an old dummy line to output before this
4048 ;; article.
6748645f
LMI		 4049 (when (and gnus-tmp-dummy-line
4050 (gnus-subject-equal
4051 gnus-tmp-dummy-line
4052 (mail-header-subject gnus-tmp-header)))
eec82323
LMI		 4053 (gnus-summary-insert-dummy-line
4054 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
4055 (setq gnus-tmp-dummy-line nil))
4056
4057 ;; Compute the mark.
4058 (setq gnus-tmp-unread (gnus-article-mark number))
4059
4060 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
4061 gnus-tmp-header gnus-tmp-level)
4062 gnus-newsgroup-data)
4063
4064 ;; Actually insert the line.
4065 (setq
4066 gnus-tmp-subject-or-nil
4067 (cond
4068 ((and gnus-thread-ignore-subject
4069 gnus-tmp-prev-subject
4070 (not (inline (gnus-subject-equal
4071 gnus-tmp-prev-subject subject))))
4072 subject)
4073 ((zerop gnus-tmp-level)
4074 (if (and (eq gnus-summary-make-false-root 'empty)
4075 (memq number gnus-tmp-gathered)
4076 gnus-tmp-prev-subject
4077 (inline (gnus-subject-equal
4078 gnus-tmp-prev-subject subject)))
4079 gnus-summary-same-subject
4080 subject))
4081 (t gnus-summary-same-subject)))
4082 (if (and (eq gnus-summary-make-false-root 'adopt)
4083 (= gnus-tmp-level 1)
4084 (memq number gnus-tmp-gathered))
4085 (setq gnus-tmp-opening-bracket ?\<
4086 gnus-tmp-closing-bracket ?\>)
4087 (setq gnus-tmp-opening-bracket ?\[
4088 gnus-tmp-closing-bracket ?\]))
4089 (setq
4090 gnus-tmp-indentation
4091 (aref gnus-thread-indent-array gnus-tmp-level)
4092 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
4093 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
4094 gnus-summary-default-score 0)
4095 gnus-tmp-score-char
4096 (if (or (null gnus-summary-default-score)
4097 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
4098 gnus-summary-zcore-fuzz))
16409b0b 4099 ? ;Whitespace
eec82323
LMI		 4100 (if (< gnus-tmp-score gnus-summary-default-score)
4101 gnus-score-below-mark gnus-score-over-mark))
4102 gnus-tmp-replied
4103 (cond ((memq number gnus-newsgroup-processable)
4104 gnus-process-mark)
4105 ((memq number gnus-newsgroup-cached)
4106 gnus-cached-mark)
4107 ((memq number gnus-newsgroup-replied)
4108 gnus-replied-mark)
4109 ((memq number gnus-newsgroup-saved)
4110 gnus-saved-mark)
4111 (t gnus-unread-mark))
4112 gnus-tmp-from (mail-header-from gnus-tmp-header)
4113 gnus-tmp-name
4114 (cond
4115 ((string-match "<[^>]+> *$" gnus-tmp-from)
4116 (setq beg-match (match-beginning 0))
4117 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
4118 (substring gnus-tmp-from (1+ (match-beginning 0))
4119 (1- (match-end 0))))
4120 (substring gnus-tmp-from 0 beg-match)))
4121 ((string-match "(.+)" gnus-tmp-from)
4122 (substring gnus-tmp-from
4123 (1+ (match-beginning 0)) (1- (match-end 0))))
4124 (t gnus-tmp-from)))
4125 (when (string= gnus-tmp-name "")
4126 (setq gnus-tmp-name gnus-tmp-from))
4127 (unless (numberp gnus-tmp-lines)
4128 (setq gnus-tmp-lines 0))
16409b0b 4129 (gnus-put-text-property
eec82323
LMI		 4130 (point)
4131 (progn (eval gnus-summary-line-format-spec) (point))
4132 'gnus-number number)
4133 (when gnus-visual-p
4134 (forward-line -1)
6748645f 4135 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI		 4136 (forward-line 1))
4137
4138 (setq gnus-tmp-prev-subject subject)))
4139
4140 (when (nth 1 thread)
4141 (push (cons (max 0 gnus-tmp-level) (nthcdr 1 thread)) stack))
4142 (incf gnus-tmp-level)
4143 (setq threads (if thread-end nil (cdar thread)))
4144 (unless threads
4145 (setq gnus-tmp-level 0)))))
4146 (gnus-message 7 "Generating summary...done"))
4147
4148(defun gnus-summary-prepare-unthreaded (headers)
4149 "Generate an unthreaded summary buffer based on HEADERS."
4150 (let (header number mark)
4151
4152 (beginning-of-line)
4153
4154 (while headers
4155 ;; We may have to root out some bad articles...
4156 (when (memq (setq number (mail-header-number
4157 (setq header (pop headers))))
4158 gnus-newsgroup-limit)
4159 ;; Mark article as read when it has a low score.
4160 (when (and gnus-summary-mark-below
4161 (< (or (cdr (assq number gnus-newsgroup-scored))
4162 gnus-summary-default-score 0)
4163 gnus-summary-mark-below)
4164 (not (gnus-summary-article-ancient-p number)))
4165 (setq gnus-newsgroup-unreads
4166 (delq number gnus-newsgroup-unreads))
4167 (if gnus-newsgroup-auto-expire
4168 (push number gnus-newsgroup-expirable)
4169 (push (cons number gnus-low-score-mark)
4170 gnus-newsgroup-reads)))
4171
4172 (setq mark (gnus-article-mark number))
4173 (push (gnus-data-make number mark (1+ (point)) header 0)
4174 gnus-newsgroup-data)
4175 (gnus-summary-insert-line
4176 header 0 number
4177 mark (memq number gnus-newsgroup-replied)
4178 (memq number gnus-newsgroup-expirable)
4179 (mail-header-subject header) nil
4180 (cdr (assq number gnus-newsgroup-scored))
4181 (memq number gnus-newsgroup-processable))))))
4182
16409b0b
GM		 4183(defun gnus-summary-remove-list-identifiers ()
4184 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
4185 (let ((regexp (if (stringp gnus-list-identifiers)
4186 gnus-list-identifiers
4187 (mapconcat 'identity gnus-list-identifiers " *\\|"))))
4188 (dolist (header gnus-newsgroup-headers)
4189 (when (string-match (concat "\\(\\(\\(Re: +\\)?\\(" regexp
4190 " *\\)\\)+\\(Re: +\\)?\\)")
4191 (mail-header-subject header))
4192 (mail-header-set-subject
4193 header (concat (substring (mail-header-subject header)
4194 0 (match-beginning 1))
4195 (or
4196 (match-string 3 (mail-header-subject header))
4197 (match-string 5 (mail-header-subject header)))
4198 (substring (mail-header-subject header)
4199 (match-end 1))))))))
4200
6748645f 4201(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 4202 "Select newsgroup GROUP.
6748645f
LMI		 4203If READ-ALL is non-nil, all articles in the group are selected.
4204If SELECT-ARTICLES, only select those articles from GROUP."
eec82323
LMI		 4205 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
4206 ;;!!! Dirty hack; should be removed.
4207 (gnus-summary-ignore-duplicates
6748645f 4208 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI		 4209 t
4210 gnus-summary-ignore-duplicates))
4211 (info (nth 2 entry))
4212 articles fetched-articles cached)
4213
4214 (unless (gnus-check-server
4215 (setq gnus-current-select-method
4216 (gnus-find-method-for-group group)))
4217 (error "Couldn't open server"))
4218
4219 (or (and entry (not (eq (car entry) t))) ; Either it's active...
4220 (gnus-activate-group group) ; Or we can activate it...
4221 (progn ; Or we bug out.
4222 (when (equal major-mode 'gnus-summary-mode)
4223 (kill-buffer (current-buffer)))
4224 (error "Couldn't request group %s: %s"
4225 group (gnus-status-message group))))
4226
4227 (unless (gnus-request-group group t)
4228 (when (equal major-mode 'gnus-summary-mode)
4229 (kill-buffer (current-buffer)))
4230 (error "Couldn't request group %s: %s"
4231 group (gnus-status-message group)))
4232
4233 (setq gnus-newsgroup-name group)
4234 (setq gnus-newsgroup-unselected nil)
4235 (setq gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
16409b0b 4236 (gnus-summary-setup-default-charset)
eec82323
LMI		 4237
4238 ;; Adjust and set lists of article marks.
4239 (when info
4240 (gnus-adjust-marked-articles info))
4241
4242 ;; Kludge to avoid having cached articles nixed out in virtual groups.
4243 (when (gnus-virtual-group-p group)
4244 (setq cached gnus-newsgroup-cached))
4245
4246 (setq gnus-newsgroup-unreads
4247 (gnus-set-difference
4248 (gnus-set-difference gnus-newsgroup-unreads gnus-newsgroup-marked)
4249 gnus-newsgroup-dormant))
4250
4251 (setq gnus-newsgroup-processable nil)
4252
4253 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 4254
6748645f
LMI		 4255 (if (setq articles select-articles)
4256 (setq gnus-newsgroup-unselected
4257 (gnus-sorted-intersection
4258 gnus-newsgroup-unreads
4259 (gnus-sorted-complement gnus-newsgroup-unreads articles)))
4260 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI		 4261
4262 (cond
4263 ((null articles)
4264 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
4265 'quit)
4266 ((eq articles 0) nil)
4267 (t
4268 ;; Init the dependencies hash table.
4269 (setq gnus-newsgroup-dependencies
4270 (gnus-make-hashtable (length articles)))
16409b0b 4271 (gnus-set-global-variables)
eec82323
LMI		 4272 ;; Retrieve the headers and read them in.
4273 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
4274 (setq gnus-newsgroup-headers
4275 (if (eq 'nov
4276 (setq gnus-headers-retrieved-by
4277 (gnus-retrieve-headers
4278 articles gnus-newsgroup-name
4279 ;; We might want to fetch old headers, but
4280 ;; not if there is only 1 article.
6748645f 4281 (and (or (and
eec82323
LMI		 4282 (not (eq gnus-fetch-old-headers 'some))
4283 (not (numberp gnus-fetch-old-headers)))
6748645f
LMI		 4284 (> (length articles) 1))
4285 gnus-fetch-old-headers))))
eec82323
LMI		 4286 (gnus-get-newsgroup-headers-xover
4287 articles nil nil gnus-newsgroup-name t)
4288 (gnus-get-newsgroup-headers)))
4289 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name)
4290
4291 ;; Kludge to avoid having cached articles nixed out in virtual groups.
4292 (when cached
4293 (setq gnus-newsgroup-cached cached))
4294
4295 ;; Suppress duplicates?
4296 (when gnus-suppress-duplicates
4297 (gnus-dup-suppress-articles))
4298
4299 ;; Set the initial limit.
4300 (setq gnus-newsgroup-limit (copy-sequence articles))
4301 ;; Remove canceled articles from the list of unread articles.
4302 (setq gnus-newsgroup-unreads
4303 (gnus-set-sorted-intersection
4304 gnus-newsgroup-unreads
4305 (setq fetched-articles
4306 (mapcar (lambda (headers) (mail-header-number headers))
4307 gnus-newsgroup-headers))))
4308 ;; Removed marked articles that do not exist.
4309 (gnus-update-missing-marks
4310 (gnus-sorted-complement fetched-articles articles))
4311 ;; We might want to build some more threads first.
6748645f
LMI		 4312 (when (and gnus-fetch-old-headers
4313 (eq gnus-headers-retrieved-by 'nov))
4314 (if (eq gnus-fetch-old-headers 'invisible)
4315 (gnus-build-all-threads)
4316 (gnus-build-old-threads)))
4317 ;; Let the Gnus agent mark articles as read.
4318 (when gnus-agent
4319 (gnus-agent-get-undownloaded-list))
16409b0b
GM		 4320 ;; Remove list identifiers from subject
4321 (when gnus-list-identifiers
4322 (gnus-summary-remove-list-identifiers))
eec82323
LMI		 4323 ;; Check whether auto-expire is to be done in this group.
4324 (setq gnus-newsgroup-auto-expire
4325 (gnus-group-auto-expirable-p group))
4326 ;; Set up the article buffer now, if necessary.
4327 (unless gnus-single-article-buffer
4328 (gnus-article-setup-buffer))
4329 ;; First and last article in this newsgroup.
4330 (when gnus-newsgroup-headers
4331 (setq gnus-newsgroup-begin
4332 (mail-header-number (car gnus-newsgroup-headers))
4333 gnus-newsgroup-end
4334 (mail-header-number
4335 (gnus-last-element gnus-newsgroup-headers))))
4336 ;; GROUP is successfully selected.
4337 (or gnus-newsgroup-headers t)))))
4338
4339(defun gnus-articles-to-read (group &optional read-all)
16409b0b 4340 "Find out what articles the user wants to read."
eec82323
LMI		 4341 (let* ((articles
4342 ;; Select all articles if `read-all' is non-nil, or if there
4343 ;; are no unread articles.
4344 (if (or read-all
4345 (and (zerop (length gnus-newsgroup-marked))
4346 (zerop (length gnus-newsgroup-unreads)))
4347 (eq (gnus-group-find-parameter group 'display)
4348 'all))
16409b0b
GM		 4349 (or
4350 (gnus-uncompress-range (gnus-active group))
4351 (gnus-cache-articles-in-group group))
eec82323
LMI		 4352 (sort (append gnus-newsgroup-dormant gnus-newsgroup-marked
4353 (copy-sequence gnus-newsgroup-unreads))
4354 '<)))
4355 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
4356 (scored (length scored-list))
4357 (number (length articles))
4358 (marked (+ (length gnus-newsgroup-marked)
4359 (length gnus-newsgroup-dormant)))
4360 (select
4361 (cond
4362 ((numberp read-all)
4363 read-all)
4364 (t
4365 (condition-case ()
4366 (cond
4367 ((and (or (<= scored marked) (= scored number))
4368 (numberp gnus-large-newsgroup)
4369 (> number gnus-large-newsgroup))
4370 (let ((input
4371 (read-string
4372 (format
4373 "How many articles from %s (default %d): "
4374 (gnus-limit-string gnus-newsgroup-name 35)
4375 number))))
4376 (if (string-match "^[ \t]*$" input) number input)))
4377 ((and (> scored marked) (< scored number)
4378 (> (- scored number) 20))
4379 (let ((input
4380 (read-string
4381 (format "%s %s (%d scored, %d total): "
4382 "How many articles from"
4383 group scored number))))
4384 (if (string-match "^[ \t]*$" input)
4385 number input)))
4386 (t number))
d4dfaa19
DL		 4387 (quit
4388 (message "Quit getting the articles to read")
4389 nil))))))
eec82323
LMI		 4390 (setq select (if (stringp select) (string-to-number select) select))
4391 (if (or (null select) (zerop select))
4392 select
4393 (if (and (not (zerop scored)) (<= (abs select) scored))
4394 (progn
4395 (setq articles (sort scored-list '<))
4396 (setq number (length articles)))
4397 (setq articles (copy-sequence articles)))
4398
4399 (when (< (abs select) number)
4400 (if (< select 0)
4401 ;; Select the N oldest articles.
4402 (setcdr (nthcdr (1- (abs select)) articles) nil)
4403 ;; Select the N most recent articles.
4404 (setq articles (nthcdr (- number select) articles))))
4405 (setq gnus-newsgroup-unselected
4406 (gnus-sorted-intersection
4407 gnus-newsgroup-unreads
4408 (gnus-sorted-complement gnus-newsgroup-unreads articles)))
16409b0b
GM		 4409 (when gnus-alter-articles-to-read-function
4410 (setq gnus-newsgroup-unreads
4411 (sort
4412 (funcall gnus-alter-articles-to-read-function
4413 gnus-newsgroup-name gnus-newsgroup-unreads)
4414 '<)))
eec82323
LMI		 4415 articles)))
4416
4417(defun gnus-killed-articles (killed articles)
4418 (let (out)
4419 (while articles
4420 (when (inline (gnus-member-of-range (car articles) killed))
4421 (push (car articles) out))
4422 (setq articles (cdr articles)))
4423 out))
4424
4425(defun gnus-uncompress-marks (marks)
4426 "Uncompress the mark ranges in MARKS."
4427 (let ((uncompressed '(score bookmark))
4428 out)
4429 (while marks
4430 (if (memq (caar marks) uncompressed)
4431 (push (car marks) out)
4432 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
4433 (setq marks (cdr marks)))
4434 out))
4435
4436(defun gnus-adjust-marked-articles (info)
16409b0b 4437 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI		 4438 (let* ((marked-lists (gnus-info-marks info))
4439 (active (gnus-active (gnus-info-group info)))
4440 (min (car active))
4441 (max (cdr active))
4442 (types gnus-article-mark-lists)
4443 (uncompressed '(score bookmark killed))
4444 marks var articles article mark)
4445
4446 (while marked-lists
4447 (setq marks (pop marked-lists))
4448 (set (setq var (intern (format "gnus-newsgroup-%s"
4449 (car (rassq (setq mark (car marks))
4450 types)))))
4451 (if (memq (car marks) uncompressed) (cdr marks)
4452 (gnus-uncompress-range (cdr marks))))
4453
4454 (setq articles (symbol-value var))
4455
4456 ;; All articles have to be subsets of the active articles.
4457 (cond
4458 ;; Adjust "simple" lists.
4459 ((memq mark '(tick dormant expire reply save))
4460 (while articles
4461 (when (or (< (setq article (pop articles)) min) (> article max))
4462 (set var (delq article (symbol-value var))))))
4463 ;; Adjust assocs.
4464 ((memq mark uncompressed)
a8151ef7
LMI		 4465 (when (not (listp (cdr (symbol-value var))))
4466 (set var (list (symbol-value var))))
4467 (when (not (listp (cdr articles)))
4468 (setq articles (list articles)))
eec82323
LMI		 4469 (while articles
4470 (when (or (not (consp (setq article (pop articles))))
4471 (< (car article) min)
4472 (> (car article) max))
4473 (set var (delq article (symbol-value var))))))))))
4474
4475(defun gnus-update-missing-marks (missing)
6748645f 4476 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323
LMI		 4477 (when missing
4478 (let ((types gnus-article-mark-lists)
4479 var m)
4480 ;; Go through all types.
4481 (while types
4482 (setq var (intern (format "gnus-newsgroup-%s" (car (pop types)))))
4483 (when (symbol-value var)
4484 ;; This list has articles. So we delete all missing articles
4485 ;; from it.
4486 (setq m missing)
4487 (while m
4488 (set var (delq (pop m) (symbol-value var)))))))))
4489
4490(defun gnus-update-marks ()
4491 "Enter the various lists of marked articles into the newsgroup info list."
4492 (let ((types gnus-article-mark-lists)
4493 (info (gnus-get-info gnus-newsgroup-name))
4494 (uncompressed '(score bookmark killed))
16409b0b 4495 type list newmarked symbol delta-marks)
eec82323 4496 (when info
16409b0b 4497 ;; Add all marks lists to the list of marks lists.
eec82323 4498 (while (setq type (pop types))
16409b0b
GM		 4499 (setq list (symbol-value
4500 (setq symbol
4501 (intern (format "gnus-newsgroup-%s"
4502 (car type))))))
eec82323 4503
16409b0b 4504 (when list
eec82323
LMI		 4505 ;; Get rid of the entries of the articles that have the
4506 ;; default score.
4507 (when (and (eq (cdr type) 'score)
4508 gnus-save-score
4509 list)
4510 (let* ((arts list)
4511 (prev (cons nil list))
4512 (all prev))
4513 (while arts
4514 (if (or (not (consp (car arts)))
4515 (= (cdar arts) gnus-summary-default-score))
4516 (setcdr prev (cdr arts))
4517 (setq prev arts))
4518 (setq arts (cdr arts)))
16409b0b
GM		 4519 (setq list (cdr all)))))
4520
4521 (unless (memq (cdr type) uncompressed)
4522 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
4523
4524 (when (gnus-check-backend-function
4525 'request-set-mark gnus-newsgroup-name)
4526 ;; propagate flags to server, with the following exceptions:
4527 ;; uncompressed:s are not proper flags (they are cons cells)
4528 ;; cache is a internal gnus flag
4529 ;; download are local to one gnus installation (well)
4530 ;; unsend are for nndraft groups only
4531 ;; xxx: generality of this? this suits nnimap anyway
4532 (unless (memq (cdr type) (append '(cache download unsend)
4533 uncompressed))
4534 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
4535 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
4536 (add (gnus-remove-from-range
4537 (gnus-copy-sequence list) old)))
4538 (when add
4539 (push (list add 'add (list (cdr type))) delta-marks))
4540 (when del
4541 (push (list del 'del (list (cdr type))) delta-marks)))))
4542
4543 (when list
4544 (push (cons (cdr type) list) newmarked)))
4545
4546 (when delta-marks
4547 (unless (gnus-check-group gnus-newsgroup-name)
4548 (error "Can't open server for %s" gnus-newsgroup-name))
4549 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
4550
eec82323
LMI		 4551 ;; Enter these new marks into the info of the group.
4552 (if (nthcdr 3 info)
4553 (setcar (nthcdr 3 info) newmarked)
4554 ;; Add the marks lists to the end of the info.
4555 (when newmarked
4556 (setcdr (nthcdr 2 info) (list newmarked))))
4557
4558 ;; Cut off the end of the info if there's nothing else there.
4559 (let ((i 5))
4560 (while (and (> i 2)
4561 (not (nth i info)))
4562 (when (nthcdr (decf i) info)
4563 (setcdr (nthcdr i info) nil)))))))
4564
4565(defun gnus-set-mode-line (where)
16409b0b 4566 "Set the mode line of the article or summary buffers.
eec82323
LMI		 4567If WHERE is `summary', the summary mode line format will be used."
4568 ;; Is this mode line one we keep updated?
16409b0b
GM		 4569 (when (and (memq where gnus-updated-mode-lines)
4570 (symbol-value
4571 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323
LMI		 4572 (let (mode-string)
4573 (save-excursion
4574 ;; We evaluate this in the summary buffer since these
4575 ;; variables are buffer-local to that buffer.
4576 (set-buffer gnus-summary-buffer)
4577 ;; We bind all these variables that are used in the `eval' form
4578 ;; below.
4579 (let* ((mformat (symbol-value
4580 (intern
4581 (format "gnus-%s-mode-line-format-spec" where))))
16409b0b
GM		 4582 (gnus-tmp-group-name (gnus-group-name-decode
4583 gnus-newsgroup-name
4584 (gnus-group-name-charset
4585 nil
4586 gnus-newsgroup-name)))
eec82323
LMI		 4587 (gnus-tmp-article-number (or gnus-current-article 0))
4588 (gnus-tmp-unread gnus-newsgroup-unreads)
4589 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
4590 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
4591 (gnus-tmp-unread-and-unselected
4592 (cond ((and (zerop gnus-tmp-unread-and-unticked)
4593 (zerop gnus-tmp-unselected))
4594 "")
4595 ((zerop gnus-tmp-unselected)
4596 (format "{%d more}" gnus-tmp-unread-and-unticked))
4597 (t (format "{%d(+%d) more}"
4598 gnus-tmp-unread-and-unticked
4599 gnus-tmp-unselected))))
4600 (gnus-tmp-subject
4601 (if (and gnus-current-headers
4602 (vectorp gnus-current-headers))
4603 (gnus-mode-string-quote
4604 (mail-header-subject gnus-current-headers))
4605 ""))
4606 bufname-length max-len
4607 gnus-tmp-header);; passed as argument to any user-format-funcs
4608 (setq mode-string (eval mformat))
4609 (setq bufname-length (if (string-match "%b" mode-string)
4610 (- (length
4611 (buffer-name
4612 (if (eq where 'summary)
4613 nil
4614 (get-buffer gnus-article-buffer))))
4615 2)
4616 0))
4617 (setq max-len (max 4 (if gnus-mode-non-string-length
4618 (- (window-width)
4619 gnus-mode-non-string-length
4620 bufname-length)
4621 (length mode-string))))
4622 ;; We might have to chop a bit of the string off...
4623 (when (> (length mode-string) max-len)
4624 (setq mode-string
16409b0b 4625 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI		 4626 "...")))
4627 ;; Pad the mode string a bit.
4628 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
4629 ;; Update the mode line.
4630 (setq mode-line-buffer-identification
4631 (gnus-mode-line-buffer-identification (list mode-string)))
4632 (set-buffer-modified-p t))))
4633
4634(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
4635 "Go through the HEADERS list and add all Xrefs to a hash table.
4636The resulting hash table is returned, or nil if no Xrefs were found."
4637 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
4638 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
4639 (xref-hashtb (gnus-make-hashtable))
4640 start group entry number xrefs header)
4641 (while headers
4642 (setq header (pop headers))
4643 (when (and (setq xrefs (mail-header-xref header))
4644 (not (memq (setq number (mail-header-number header))
4645 unreads)))
4646 (setq start 0)
4647 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
4648 (setq start (match-end 0))
4649 (setq group (if prefix
4650 (concat prefix (substring xrefs (match-beginning 1)
4651 (match-end 1)))
4652 (substring xrefs (match-beginning 1) (match-end 1))))
4653 (setq number
4654 (string-to-int (substring xrefs (match-beginning 2)
4655 (match-end 2))))
4656 (if (setq entry (gnus-gethash group xref-hashtb))
4657 (setcdr entry (cons number (cdr entry)))
4658 (gnus-sethash group (cons number nil) xref-hashtb)))))
4659 (and start xref-hashtb)))
4660
4661(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
4662 "Look through all the headers and mark the Xrefs as read."
4663 (let ((virtual (gnus-virtual-group-p from-newsgroup))
4664 name entry info xref-hashtb idlist method nth4)
4665 (save-excursion
4666 (set-buffer gnus-group-buffer)
4667 (when (setq xref-hashtb
4668 (gnus-create-xref-hashtb from-newsgroup headers unreads))
4669 (mapatoms
4670 (lambda (group)
4671 (unless (string= from-newsgroup (setq name (symbol-name group)))
4672 (setq idlist (symbol-value group))
4673 ;; Dead groups are not updated.
4674 (and (prog1
4675 (setq entry (gnus-gethash name gnus-newsrc-hashtb)
4676 info (nth 2 entry))
4677 (when (stringp (setq nth4 (gnus-info-method info)))
4678 (setq nth4 (gnus-server-to-method nth4))))
4679 ;; Only do the xrefs if the group has the same
4680 ;; select method as the group we have just read.
4681 (or (gnus-methods-equal-p
4682 nth4 (gnus-find-method-for-group from-newsgroup))
4683 virtual
4684 (equal nth4 (setq method (gnus-find-method-for-group
4685 from-newsgroup)))
4686 (and (equal (car nth4) (car method))
4687 (equal (nth 1 nth4) (nth 1 method))))
4688 gnus-use-cross-reference
4689 (or (not (eq gnus-use-cross-reference t))
4690 virtual
4691 ;; Only do cross-references on subscribed
4692 ;; groups, if that is what is wanted.
4693 (<= (gnus-info-level info) gnus-level-subscribed))
4694 (gnus-group-make-articles-read name idlist))))
4695 xref-hashtb)))))
4696
6748645f
LMI		 4697(defun gnus-compute-read-articles (group articles)
4698 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
4699 (info (nth 2 entry))
4700 (active (gnus-active group))
4701 ninfo)
4702 (when entry
16409b0b 4703 ;; First peel off all invalid article numbers.
6748645f
LMI		 4704 (when active
4705 (let ((ids articles)
4706 id first)
4707 (while (setq id (pop ids))
4708 (when (and first (> id (cdr active)))
4709 ;; We'll end up in this situation in one particular
4710 ;; obscure situation. If you re-scan a group and get
4711 ;; a new article that is cross-posted to a different
4712 ;; group that has not been re-scanned, you might get
4713 ;; crossposted article that has a higher number than
4714 ;; Gnus believes possible. So we re-activate this
4715 ;; group as well. This might mean doing the
4716 ;; crossposting thingy will *increase* the number
4717 ;; of articles in some groups. Tsk, tsk.
4718 (setq active (or (gnus-activate-group group) active)))
4719 (when (or (> id (cdr active))
4720 (< id (car active)))
4721 (setq articles (delq id articles))))))
4722 ;; If the read list is nil, we init it.
4723 (if (and active
4724 (null (gnus-info-read info))
4725 (> (car active) 1))
4726 (setq ninfo (cons 1 (1- (car active))))
4727 (setq ninfo (gnus-info-read info)))
4728 ;; Then we add the read articles to the range.
4729 (gnus-add-to-range
4730 ninfo (setq articles (sort articles '<))))))
4731
eec82323
LMI		 4732(defun gnus-group-make-articles-read (group articles)
4733 "Update the info of GROUP to say that ARTICLES are read."
4734 (let* ((num 0)
4735 (entry (gnus-gethash group gnus-newsrc-hashtb))
4736 (info (nth 2 entry))
4737 (active (gnus-active group))
4738 range)
6748645f
LMI		 4739 (when entry
4740 (setq range (gnus-compute-read-articles group articles))
4741 (save-excursion
4742 (set-buffer gnus-group-buffer)
4743 (gnus-undo-register
4744 `(progn
4745 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
4746 (gnus-info-set-read ',info ',(gnus-info-read info))
4747 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
4748 (gnus-group-update-group ,group t))))
4749 ;; Add the read articles to the range.
4750 (gnus-info-set-read info range)
4751 ;; Then we have to re-compute how many unread
4752 ;; articles there are in this group.
4753 (when active
4754 (cond
4755 ((not range)
4756 (setq num (- (1+ (cdr active)) (car active))))
4757 ((not (listp (cdr range)))
4758 (setq num (- (cdr active) (- (1+ (cdr range))
4759 (car range)))))
4760 (t
4761 (while range
4762 (if (numberp (car range))
4763 (setq num (1+ num))
4764 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
4765 (setq range (cdr range)))
4766 (setq num (- (cdr active) num))))
4767 ;; Update the number of unread articles.
4768 (setcar entry num)
4769 ;; Update the group buffer.
4770 (gnus-group-update-group group t)))))
eec82323 4771
eec82323
LMI		 4772(defvar gnus-newsgroup-none-id 0)
4773
4774(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
4775 (let ((cur nntp-server-buffer)
4776 (dependencies
4777 (or dependencies
4778 (save-excursion (set-buffer gnus-summary-buffer)
4779 gnus-newsgroup-dependencies)))
16409b0b
GM		 4780 headers id end ref
4781 (mail-parse-charset gnus-newsgroup-charset)
4782 (mail-parse-ignored-charsets
4783 (save-excursion (condition-case nil
4784 (set-buffer gnus-summary-buffer)
4785 (error))
4786 gnus-newsgroup-ignored-charsets)))
eec82323
LMI		 4787 (save-excursion
4788 (set-buffer nntp-server-buffer)
4789 ;; Translate all TAB characters into SPACE characters.
4790 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 4791 (subst-char-in-region (point-min) (point-max) ?\r ? t)
6748645f 4792 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 4793 (let ((case-fold-search t)
6748645f 4794 in-reply-to header p lines chars)
eec82323
LMI		 4795 (goto-char (point-min))
4796 ;; Search to the beginning of the next header. Error messages
4797 ;; do not begin with 2 or 3.
4798 (while (re-search-forward "^[23][0-9]+ " nil t)
4799 (setq id nil
4800 ref nil)
4801 ;; This implementation of this function, with nine
4802 ;; search-forwards instead of the one re-search-forward and
4803 ;; a case (which basically was the old function) is actually
4804 ;; about twice as fast, even though it looks messier. You
4805 ;; can't have everything, I guess. Speed and elegance
4806 ;; doesn't always go hand in hand.
4807 (setq
4808 header
4809 (vector
4810 ;; Number.
4811 (prog1
4812 (read cur)
4813 (end-of-line)
4814 (setq p (point))
4815 (narrow-to-region (point)
4816 (or (and (search-forward "\n.\n" nil t)
4817 (- (point) 2))
4818 (point))))
4819 ;; Subject.
4820 (progn
4821 (goto-char p)
4822 (if (search-forward "\nsubject: " nil t)
16409b0b
GM		 4823 (funcall gnus-decode-encoded-word-function
4824 (nnheader-header-value))
2bd3dcae 4825 "(none)"))
eec82323
LMI		 4826 ;; From.
4827 (progn
4828 (goto-char p)
d4dfaa19
DL		 4829 (if (or (search-forward "\nfrom: " nil t)
4830 (search-forward "\nfrom:" nil t))
16409b0b
GM		 4831 (funcall gnus-decode-encoded-word-function
4832 (nnheader-header-value))
2bd3dcae 4833 "(nobody)"))
eec82323
LMI		 4834 ;; Date.
4835 (progn
4836 (goto-char p)
4837 (if (search-forward "\ndate: " nil t)
4838 (nnheader-header-value) ""))
4839 ;; Message-ID.
4840 (progn
4841 (goto-char p)
6748645f
LMI		 4842 (setq id (if (re-search-forward
4843 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
4844 ;; We do it this way to make sure the Message-ID
4845 ;; is (somewhat) syntactically valid.
4846 (buffer-substring (match-beginning 1)
4847 (match-end 1))
eec82323
LMI		 4848 ;; If there was no message-id, we just fake one
4849 ;; to make subsequent routines simpler.
4850 (nnheader-generate-fake-message-id))))
4851 ;; References.
4852 (progn
4853 (goto-char p)
4854 (if (search-forward "\nreferences: " nil t)
4855 (progn
4856 (setq end (point))
4857 (prog1
4858 (nnheader-header-value)
4859 (setq ref
4860 (buffer-substring
4861 (progn
4862 (end-of-line)
4863 (search-backward ">" end t)
4864 (1+ (point)))
4865 (progn
4866 (search-backward "<" end t)
4867 (point))))))
4868 ;; Get the references from the in-reply-to header if there
4869 ;; were no references and the in-reply-to header looks
4870 ;; promising.
4871 (if (and (search-forward "\nin-reply-to: " nil t)
4872 (setq in-reply-to (nnheader-header-value))
4873 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI		 4874 (let (ref2)
4875 (setq ref (substring in-reply-to (match-beginning 0)
4876 (match-end 0)))
4877 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
4878 (setq ref2 (substring in-reply-to (match-beginning 0)
4879 (match-end 0)))
4880 (when (> (length ref2) (length ref))
4881 (setq ref ref2)))
4882 ref)
eec82323
LMI		 4883 (setq ref nil))))
4884 ;; Chars.
6748645f
LMI		 4885 (progn
4886 (goto-char p)
4887 (if (search-forward "\nchars: " nil t)
4888 (if (numberp (setq chars (ignore-errors (read cur))))
4889 chars 0)
4890 0))
eec82323
LMI		 4891 ;; Lines.
4892 (progn
4893 (goto-char p)
4894 (if (search-forward "\nlines: " nil t)
a8151ef7 4895 (if (numberp (setq lines (ignore-errors (read cur))))
eec82323
LMI		 4896 lines 0)
4897 0))
4898 ;; Xref.
4899 (progn
4900 (goto-char p)
4901 (and (search-forward "\nxref: " nil t)
16409b0b
GM		 4902 (nnheader-header-value)))
4903 ;; Extra.
4904 (when gnus-extra-headers
4905 (let ((extra gnus-extra-headers)
4906 out)
4907 (while extra
4908 (goto-char p)
4909 (when (search-forward
4910 (concat "\n" (symbol-name (car extra)) ": ") nil t)
4911 (push (cons (car extra) (nnheader-header-value))
4912 out))
4913 (pop extra))
4914 out))))
eec82323
LMI		 4915 (when (equal id ref)
4916 (setq ref nil))
6748645f
LMI		 4917
4918 (when gnus-alter-header-function
4919 (funcall gnus-alter-header-function header)
4920 (setq id (mail-header-id header)
4921 ref (gnus-parent-id (mail-header-references header))))
4922
4923 (when (setq header
4924 (gnus-dependencies-add-header
4925 header dependencies force-new))
eec82323
LMI		 4926 (push header headers))
4927 (goto-char (point-max))
4928 (widen))
4929 (nreverse headers)))))
4930
eec82323
LMI		 4931;; Goes through the xover lines and returns a list of vectors
4932(defun gnus-get-newsgroup-headers-xover (sequence &optional
4933 force-new dependencies
4934 group also-fetch-heads)
16409b0b
GM		 4935 "Parse the news overview data in the server buffer.
4936Return a list of headers that match SEQUENCE (see
4937`nntp-retrieve-headers')."
eec82323
LMI		 4938 ;; Get the Xref when the users reads the articles since most/some
4939 ;; NNTP servers do not include Xrefs when using XOVER.
4940 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM		 4941 (let ((mail-parse-charset gnus-newsgroup-charset)
4942 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
4943 (cur nntp-server-buffer)
eec82323
LMI		 4944 (dependencies (or dependencies gnus-newsgroup-dependencies))
4945 number headers header)
4946 (save-excursion
4947 (set-buffer nntp-server-buffer)
16409b0b 4948 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 4949 ;; Allow the user to mangle the headers before parsing them.
6748645f 4950 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323
LMI		 4951 (goto-char (point-min))
4952 (while (not (eobp))
4953 (condition-case ()
4954 (while (and sequence (not (eobp)))
4955 (setq number (read cur))
4956 (while (and sequence
4957 (< (car sequence) number))
4958 (setq sequence (cdr sequence)))
4959 (and sequence
4960 (eq number (car sequence))
4961 (progn
4962 (setq sequence (cdr sequence))
4963 (setq header (inline
4964 (gnus-nov-parse-line
4965 number dependencies force-new))))
4966 (push header headers))
4967 (forward-line 1))
4968 (error
4969 (gnus-error 4 "Strange nov line (%d)"
4970 (count-lines (point-min) (point)))))
4971 (forward-line 1))
4972 ;; A common bug in inn is that if you have posted an article and
4973 ;; then retrieves the active file, it will answer correctly --
4974 ;; the new article is included. However, a NOV entry for the
4975 ;; article may not have been generated yet, so this may fail.
4976 ;; We work around this problem by retrieving the last few
4977 ;; headers using HEAD.
4978 (if (or (not also-fetch-heads)
4979 (not sequence))
4980 ;; We (probably) got all the headers.
4981 (nreverse headers)
4982 (let ((gnus-nov-is-evil t))
4983 (nconc
4984 (nreverse headers)
4985 (when (gnus-retrieve-headers sequence group)
4986 (gnus-get-newsgroup-headers))))))))
4987
4988(defun gnus-article-get-xrefs ()
4989 "Fill in the Xref value in `gnus-current-headers', if necessary.
4990This is meant to be called in `gnus-article-internal-prepare-hook'."
4991 (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
4992 gnus-current-headers)))
4993 (or (not gnus-use-cross-reference)
4994 (not headers)
4995 (and (mail-header-xref headers)
4996 (not (string= (mail-header-xref headers) "")))
4997 (let ((case-fold-search t)
4998 xref)
4999 (save-restriction
5000 (nnheader-narrow-to-headers)
5001 (goto-char (point-min))
16409b0b
GM		 5002 (when (or (and (not (eobp))
5003 (eq (downcase (char-after)) ?x)
eec82323
LMI		 5004 (looking-at "Xref:"))
5005 (search-forward "\nXref:" nil t))
5006 (goto-char (1+ (match-end 0)))
5007 (setq xref (buffer-substring (point)
5008 (progn (end-of-line) (point))))
5009 (mail-header-set-xref headers xref)))))))
5010
5011(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI		 5012 "Find article ID and insert the summary line for that article.
5013OLD-HEADER can either be a header or a line number to insert
5014the subject line on."
5015 (let* ((line (and (numberp old-header) old-header))
5016 (old-header (and (vectorp old-header) old-header))
5017 (header (cond ((and old-header use-old-header)
16409b0b
GM		 5018 old-header)
5019 ((and (numberp id)
5020 (gnus-number-to-header id))
5021 (gnus-number-to-header id))
5022 (t
5023 (gnus-read-header id))))
5024 (number (and (numberp id) id))
5025 d)
eec82323
LMI		 5026 (when header
5027 ;; Rebuild the thread that this article is part of and go to the
5028 ;; article we have fetched.
5029 (when (and (not gnus-show-threads)
5030 old-header)
6748645f
LMI		 5031 (when (and number
5032 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI		 5033 (goto-char (gnus-data-pos d))
5034 (gnus-data-remove
5035 number
5036 (- (gnus-point-at-bol)
5037 (prog1
5038 (1+ (gnus-point-at-eol))
5039 (gnus-delete-line))))))
5040 (when old-header
5041 (mail-header-set-number header (mail-header-number old-header)))
5042 (setq gnus-newsgroup-sparse
5043 (delq (setq number (mail-header-number header))
5044 gnus-newsgroup-sparse))
5045 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI		 5046 (push number gnus-newsgroup-limit)
5047 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI		 5048 (gnus-summary-goto-subject number nil t))
5049 (when (and (numberp number)
5050 (> number 0))
5051 ;; We have to update the boundaries even if we can't fetch the
5052 ;; article if ID is a number -- so that the next `P' or `N'
5053 ;; command will fetch the previous (or next) article even
5054 ;; if the one we tried to fetch this time has been canceled.
5055 (when (> number gnus-newsgroup-end)
5056 (setq gnus-newsgroup-end number))
5057 (when (< number gnus-newsgroup-begin)
5058 (setq gnus-newsgroup-begin number))
5059 (setq gnus-newsgroup-unselected
5060 (delq number gnus-newsgroup-unselected)))
5061 ;; Report back a success?
5062 (and header (mail-header-number header))))
5063
5064;;; Process/prefix in the summary buffer
5065
5066(defun gnus-summary-work-articles (n)
6748645f
LMI		 5067 "Return a list of articles to be worked upon.
5068The prefix argument, the list of process marked articles, and the
5069current article will be taken into consideration."
5070 (save-excursion
5071 (set-buffer gnus-summary-buffer)
5072 (cond
5073 (n
5074 ;; A numerical prefix has been given.
5075 (setq n (prefix-numeric-value n))
5076 (let ((backward (< n 0))
5077 (n (abs (prefix-numeric-value n)))
5078 articles article)
5079 (save-excursion
5080 (while
5081 (and (> n 0)
5082 (push (setq article (gnus-summary-article-number))
5083 articles)
5084 (if backward
5085 (gnus-summary-find-prev nil article)
5086 (gnus-summary-find-next nil article)))
5087 (decf n)))
5088 (nreverse articles)))
5089 ((and (gnus-region-active-p) (mark))
5090 (message "region active")
5091 ;; Work on the region between point and mark.
5092 (let ((max (max (point) (mark)))
5093 articles article)
5094 (save-excursion
5095 (goto-char (min (min (point) (mark))))
5096 (while
5097 (and
5098 (push (setq article (gnus-summary-article-number)) articles)
5099 (gnus-summary-find-next nil article)
5100 (< (point) max)))
5101 (nreverse articles))))
5102 (gnus-newsgroup-processable
5103 ;; There are process-marked articles present.
5104 ;; Save current state.
5105 (gnus-summary-save-process-mark)
5106 ;; Return the list.
5107 (reverse gnus-newsgroup-processable))
5108 (t
5109 ;; Just return the current article.
5110 (list (gnus-summary-article-number))))))
5111
5112(defmacro gnus-summary-iterate (arg &rest forms)
5113 "Iterate over the process/prefixed articles and do FORMS.
5114ARG is the interactive prefix given to the command. FORMS will be
5115executed with point over the summary line of the articles."
5116 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
5117 `(let ((,articles (gnus-summary-work-articles ,arg)))
5118 (while ,articles
5119 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM		 5120 ,@forms
5121 (pop ,articles)))))
6748645f
LMI		 5122
5123(put 'gnus-summary-iterate 'lisp-indent-function 1)
5124(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI		 5125
5126(defun gnus-summary-save-process-mark ()
5127 "Push the current set of process marked articles on the stack."
5128 (interactive)
5129 (push (copy-sequence gnus-newsgroup-processable)
5130 gnus-newsgroup-process-stack))
5131
5132(defun gnus-summary-kill-process-mark ()
5133 "Push the current set of process marked articles on the stack and unmark."
5134 (interactive)
5135 (gnus-summary-save-process-mark)
5136 (gnus-summary-unmark-all-processable))
5137
5138(defun gnus-summary-yank-process-mark ()
5139 "Pop the last process mark state off the stack and restore it."
5140 (interactive)
5141 (unless gnus-newsgroup-process-stack
5142 (error "Empty mark stack"))
5143 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
5144
5145(defun gnus-summary-process-mark-set (set)
5146 "Make SET into the current process marked articles."
5147 (gnus-summary-unmark-all-processable)
5148 (while set
5149 (gnus-summary-set-process-mark (pop set))))
5150
5151;;; Searching and stuff
5152
5153(defun gnus-summary-search-group (&optional backward use-level)
5154 "Search for next unread newsgroup.
5155If optional argument BACKWARD is non-nil, search backward instead."
5156 (save-excursion
5157 (set-buffer gnus-group-buffer)
5158 (when (gnus-group-search-forward
5159 backward nil (if use-level (gnus-group-group-level) nil))
5160 (gnus-group-group-name))))
5161
5162(defun gnus-summary-best-group (&optional exclude-group)
5163 "Find the name of the best unread group.
5164If EXCLUDE-GROUP, do not go to this group."
5165 (save-excursion
5166 (set-buffer gnus-group-buffer)
5167 (save-excursion
5168 (gnus-group-best-unread-group exclude-group))))
5169
6748645f 5170(defun gnus-summary-find-next (&optional unread article backward undownloaded)
eec82323
LMI		 5171 (if backward (gnus-summary-find-prev)
5172 (let* ((dummy (gnus-summary-article-intangible-p))
5173 (article (or article (gnus-summary-article-number)))
5174 (arts (gnus-data-find-list article))
5175 result)
5176 (when (and (not dummy)
5177 (or (not gnus-summary-check-current)
5178 (not unread)
5179 (not (gnus-data-unread-p (car arts)))))
5180 (setq arts (cdr arts)))
5181 (when (setq result
5182 (if unread
5183 (progn
5184 (while arts
6748645f
LMI		 5185 (when (or (and undownloaded
5186 (eq gnus-undownloaded-mark
5187 (gnus-data-mark (car arts))))
5188 (gnus-data-unread-p (car arts)))
eec82323
LMI		 5189 (setq result (car arts)
5190 arts nil))
5191 (setq arts (cdr arts)))
5192 result)
5193 (car arts)))
5194 (goto-char (gnus-data-pos result))
5195 (gnus-data-number result)))))
5196
5197(defun gnus-summary-find-prev (&optional unread article)
5198 (let* ((eobp (eobp))
5199 (article (or article (gnus-summary-article-number)))
5200 (arts (gnus-data-find-list article (gnus-data-list 'rev)))
5201 result)
5202 (when (and (not eobp)
5203 (or (not gnus-summary-check-current)
5204 (not unread)
5205 (not (gnus-data-unread-p (car arts)))))
5206 (setq arts (cdr arts)))
5207 (when (setq result
5208 (if unread
5209 (progn
5210 (while arts
5211 (when (gnus-data-unread-p (car arts))
5212 (setq result (car arts)
5213 arts nil))
5214 (setq arts (cdr arts)))
5215 result)
5216 (car arts)))
5217 (goto-char (gnus-data-pos result))
5218 (gnus-data-number result))))
5219
5220(defun gnus-summary-find-subject (subject &optional unread backward article)
5221 (let* ((simp-subject (gnus-simplify-subject-fully subject))
5222 (article (or article (gnus-summary-article-number)))
5223 (articles (gnus-data-list backward))
5224 (arts (gnus-data-find-list article articles))
5225 result)
5226 (when (or (not gnus-summary-check-current)
5227 (not unread)
5228 (not (gnus-data-unread-p (car arts))))
5229 (setq arts (cdr arts)))
5230 (while arts
5231 (and (or (not unread)
5232 (gnus-data-unread-p (car arts)))
5233 (vectorp (gnus-data-header (car arts)))
5234 (gnus-subject-equal
5235 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
5236 (setq result (car arts)
5237 arts nil))
5238 (setq arts (cdr arts)))
5239 (and result
5240 (goto-char (gnus-data-pos result))
5241 (gnus-data-number result))))
5242
5243(defun gnus-summary-search-forward (&optional unread subject backward)
5244 "Search forward for an article.
5245If UNREAD, look for unread articles. If SUBJECT, look for
5246articles with that subject. If BACKWARD, search backward instead."
5247 (cond (subject (gnus-summary-find-subject subject unread backward))
5248 (backward (gnus-summary-find-prev unread))
5249 (t (gnus-summary-find-next unread))))
5250
5251(defun gnus-recenter (&optional n)
5252 "Center point in window and redisplay frame.
5253Also do horizontal recentering."
5254 (interactive "P")
5255 (when (and gnus-auto-center-summary
5256 (not (eq gnus-auto-center-summary 'vertical)))
5257 (gnus-horizontal-recenter))
5258 (recenter n))
5259
5260(defun gnus-summary-recenter ()
5261 "Center point in the summary window.
5262If `gnus-auto-center-summary' is nil, or the article buffer isn't
5263displayed, no centering will be performed."
5264 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
5265 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 5266 (interactive)
eec82323
LMI		 5267 (let* ((top (cond ((< (window-height) 4) 0)
5268 ((< (window-height) 7) 1)
16409b0b
GM		 5269 (t (if (numberp gnus-auto-center-summary)
5270 gnus-auto-center-summary
5271 2))))
eec82323
LMI		 5272 (height (1- (window-height)))
5273 (bottom (save-excursion (goto-char (point-max))
5274 (forward-line (- height))
5275 (point)))
5276 (window (get-buffer-window (current-buffer))))
5277 ;; The user has to want it.
5278 (when gnus-auto-center-summary
5279 (when (get-buffer-window gnus-article-buffer)
5280 ;; Only do recentering when the article buffer is displayed,
5281 ;; Set the window start to either `bottom', which is the biggest
5282 ;; possible valid number, or the second line from the top,
5283 ;; whichever is the least.
db7ebd73
MB		 5284 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
5285 (if (> bottom top-pos)
5286 ;; Keep the second line from the top visible
5287 (set-window-start window top-pos t)
5288 ;; Try to keep the bottom line visible; if it's partially
5289 ;; obscured, either scroll one more line to make it fully
5290 ;; visible, or revert to using TOP-POS.
5291 (save-excursion
5292 (goto-char (point-max))
5293 (forward-line -1)
5294 (let ((last-line-start (point)))
5295 (goto-char bottom)
5296 (set-window-start window (point) t)
5297 (when (not (pos-visible-in-window-p last-line-start window))
5298 (forward-line 1)
5299 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI		 5300 ;; Do horizontal recentering while we're at it.
5301 (when (and (get-buffer-window (current-buffer) t)
5302 (not (eq gnus-auto-center-summary 'vertical)))
5303 (let ((selected (selected-window)))
5304 (select-window (get-buffer-window (current-buffer) t))
5305 (gnus-summary-position-point)
5306 (gnus-horizontal-recenter)
5307 (select-window selected))))))
5308
5309(defun gnus-summary-jump-to-group (newsgroup)
5310 "Move point to NEWSGROUP in group mode buffer."
5311 ;; Keep update point of group mode buffer if visible.
5312 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
5313 (save-window-excursion
5314 ;; Take care of tree window mode.
5315 (when (get-buffer-window gnus-group-buffer)
5316 (pop-to-buffer gnus-group-buffer))
5317 (gnus-group-jump-to-group newsgroup))
5318 (save-excursion
5319 ;; Take care of tree window mode.
5320 (if (get-buffer-window gnus-group-buffer)
5321 (pop-to-buffer gnus-group-buffer)
5322 (set-buffer gnus-group-buffer))
5323 (gnus-group-jump-to-group newsgroup))))
5324
5325;; This function returns a list of article numbers based on the
5326;; difference between the ranges of read articles in this group and
5327;; the range of active articles.
5328(defun gnus-list-of-unread-articles (group)
5329 (let* ((read (gnus-info-read (gnus-get-info group)))
5330 (active (or (gnus-active group) (gnus-activate-group group)))
5331 (last (cdr active))
5332 first nlast unread)
5333 ;; If none are read, then all are unread.
5334 (if (not read)
5335 (setq first (car active))
5336 ;; If the range of read articles is a single range, then the
5337 ;; first unread article is the article after the last read
5338 ;; article. Sounds logical, doesn't it?
16409b0b
GM		 5339 (if (and (not (listp (cdr read)))
5340 (or (< (car read) (car active))
5341 (progn (setq read (list read))
5342 nil)))
6748645f 5343 (setq first (max (car active) (1+ (cdr read))))
eec82323
LMI		 5344 ;; `read' is a list of ranges.
5345 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
5346 (caar read)))
5347 1)
6748645f 5348 (setq first (car active)))
eec82323
LMI		 5349 (while read
5350 (when first
5351 (while (< first nlast)
5352 (push first unread)
5353 (setq first (1+ first))))
5354 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
5355 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
5356 (setq read (cdr read)))))
5357 ;; And add the last unread articles.
5358 (while (<= first last)
5359 (push first unread)
5360 (setq first (1+ first)))
5361 ;; Return the list of unread articles.
6748645f 5362 (delq 0 (nreverse unread))))
eec82323
LMI		 5363
5364(defun gnus-list-of-read-articles (group)
5365 "Return a list of unread, unticked and non-dormant articles."
5366 (let* ((info (gnus-get-info group))
5367 (marked (gnus-info-marks info))
5368 (active (gnus-active group)))
5369 (and info active
5370 (gnus-set-difference
5371 (gnus-sorted-complement
5372 (gnus-uncompress-range active)
5373 (gnus-list-of-unread-articles group))
5374 (append
5375 (gnus-uncompress-range (cdr (assq 'dormant marked)))
5376 (gnus-uncompress-range (cdr (assq 'tick marked))))))))
5377
5378;; Various summary commands
5379
6748645f
LMI		 5380(defun gnus-summary-select-article-buffer ()
5381 "Reconfigure windows to show article buffer."
5382 (interactive)
5383 (if (not (gnus-buffer-live-p gnus-article-buffer))
5384 (error "There is no article buffer for this summary buffer")
5385 (gnus-configure-windows 'article)
5386 (select-window (get-buffer-window gnus-article-buffer))))
5387
eec82323
LMI		 5388(defun gnus-summary-universal-argument (arg)
5389 "Perform any operation on all articles that are process/prefixed."
5390 (interactive "P")
eec82323
LMI		 5391 (let ((articles (gnus-summary-work-articles arg))
5392 func article)
5393 (if (eq
5394 (setq
5395 func
5396 (key-binding
5397 (read-key-sequence
5398 (substitute-command-keys
16409b0b 5399 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI		 5400 'undefined)
5401 (gnus-error 1 "Undefined key")
5402 (save-excursion
5403 (while articles
5404 (gnus-summary-goto-subject (setq article (pop articles)))
5405 (let (gnus-newsgroup-processable)
5406 (command-execute func))
5407 (gnus-summary-remove-process-mark article)))))
5408 (gnus-summary-position-point))
5409
5410(defun gnus-summary-toggle-truncation (&optional arg)
5411 "Toggle truncation of summary lines.
5412With arg, turn line truncation on iff arg is positive."
5413 (interactive "P")
5414 (setq truncate-lines
5415 (if (null arg) (not truncate-lines)
5416 (> (prefix-numeric-value arg) 0)))
5417 (redraw-display))
5418
5419(defun gnus-summary-reselect-current-group (&optional all rescan)
5420 "Exit and then reselect the current newsgroup.
5421The prefix argument ALL means to select all articles."
5422 (interactive "P")
eec82323
LMI		 5423 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
5424 (error "Ephemeral groups can't be reselected"))
5425 (let ((current-subject (gnus-summary-article-number))
5426 (group gnus-newsgroup-name))
5427 (setq gnus-newsgroup-begin nil)
5428 (gnus-summary-exit)
5429 ;; We have to adjust the point of group mode buffer because
5430 ;; point was moved to the next unread newsgroup by exiting.
5431 (gnus-summary-jump-to-group group)
5432 (when rescan
5433 (save-excursion
5434 (gnus-group-get-new-news-this-group 1)))
5435 (gnus-group-read-group all t)
5436 (gnus-summary-goto-subject current-subject nil t)))
5437
5438(defun gnus-summary-rescan-group (&optional all)
5439 "Exit the newsgroup, ask for new articles, and select the newsgroup."
5440 (interactive "P")
5441 (gnus-summary-reselect-current-group all t))
5442
5443(defun gnus-summary-update-info (&optional non-destructive)
5444 (save-excursion
5445 (let ((group gnus-newsgroup-name))
6748645f
LMI		 5446 (when group
5447 (when gnus-newsgroup-kill-headers
5448 (setq gnus-newsgroup-killed
5449 (gnus-compress-sequence
5450 (nconc
5451 (gnus-set-sorted-intersection
5452 (gnus-uncompress-range gnus-newsgroup-killed)
5453 (setq gnus-newsgroup-unselected
5454 (sort gnus-newsgroup-unselected '<)))
5455 (setq gnus-newsgroup-unreads
5456 (sort gnus-newsgroup-unreads '<)))
5457 t)))
5458 (unless (listp (cdr gnus-newsgroup-killed))
5459 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
5460 (let ((headers gnus-newsgroup-headers))
5461 ;; Set the new ranges of read articles.
5462 (save-excursion
5463 (set-buffer gnus-group-buffer)
5464 (gnus-undo-force-boundary))
5465 (gnus-update-read-articles
5466 group (append gnus-newsgroup-unreads gnus-newsgroup-unselected))
5467 ;; Set the current article marks.
5468 (let ((gnus-newsgroup-scored
5469 (if (and (not gnus-save-score)
5470 (not non-destructive))
5471 nil
5472 gnus-newsgroup-scored)))
5473 (save-excursion
5474 (gnus-update-marks)))
5475 ;; Do the cross-ref thing.
5476 (when gnus-use-cross-reference
5477 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
5478 ;; Do not switch windows but change the buffer to work.
a8151ef7 5479 (set-buffer gnus-group-buffer)
6748645f
LMI		 5480 (unless (gnus-ephemeral-group-p group)
5481 (gnus-group-update-group group)))))))
eec82323
LMI		 5482
5483(defun gnus-summary-save-newsrc (&optional force)
5484 "Save the current number of read/marked articles in the dribble buffer.
5485The dribble buffer will then be saved.
5486If FORCE (the prefix), also save the .newsrc file(s)."
5487 (interactive "P")
5488 (gnus-summary-update-info t)
5489 (if force
5490 (gnus-save-newsrc-file)
5491 (gnus-dribble-save)))
5492
5493(defun gnus-summary-exit (&optional temporary)
5494 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 5495`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI		 5496 (interactive)
5497 (gnus-set-global-variables)
16409b0b
GM		 5498 (when (gnus-buffer-live-p gnus-article-buffer)
5499 (save-excursion
5500 (set-buffer gnus-article-buffer)
5501 (mm-destroy-parts gnus-article-mime-handles)
5502 ;; Set it to nil for safety reason.
5503 (setq gnus-article-mime-handle-alist nil)
5504 (setq gnus-article-mime-handles nil)))
eec82323 5505 (gnus-kill-save-kill-buffer)
6748645f 5506 (gnus-async-halt-prefetch)
eec82323
LMI		 5507 (let* ((group gnus-newsgroup-name)
5508 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
5509 (mode major-mode)
a8151ef7 5510 (group-point nil)
eec82323 5511 (buf (current-buffer)))
16409b0b
GM		 5512 (unless quit-config
5513 ;; Do adaptive scoring, and possibly save score files.
5514 (when gnus-newsgroup-adaptive
5515 (gnus-score-adaptive))
5516 (when gnus-use-scoring
5517 (gnus-score-save)))
6748645f 5518 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI		 5519 ;; If we have several article buffers, we kill them at exit.
5520 (unless gnus-single-article-buffer
5521 (gnus-kill-buffer gnus-original-article-buffer)
5522 (setq gnus-article-current nil))
5523 (when gnus-use-cache
5524 (gnus-cache-possibly-remove-articles)
5525 (gnus-cache-save-buffers))
5526 (gnus-async-prefetch-remove-group group)
5527 (when gnus-suppress-duplicates
5528 (gnus-dup-enter-articles))
5529 (when gnus-use-trees
5530 (gnus-tree-close group))
16409b0b
GM		 5531 (when gnus-use-cache
5532 (gnus-cache-write-active))
6748645f
LMI		 5533 ;; Remove entries for this group.
5534 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI		 5535 ;; Make all changes in this group permanent.
5536 (unless quit-config
6748645f 5537 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 5538 (gnus-summary-update-info))
eec82323
LMI		 5539 (gnus-close-group group)
5540 ;; Make sure where we were, and go to next newsgroup.
5541 (set-buffer gnus-group-buffer)
5542 (unless quit-config
5543 (gnus-group-jump-to-group group))
6748645f
LMI		 5544 (gnus-run-hooks 'gnus-summary-exit-hook)
5545 (unless (or quit-config
5546 ;; If this group has disappeared from the summary
5547 ;; buffer, don't skip forwards.
5548 (not (string= group (gnus-group-group-name))))
eec82323 5549 (gnus-group-next-unread-group 1))
a8151ef7 5550 (setq group-point (point))
eec82323
LMI		 5551 (if temporary
5552 nil ;Nothing to do.
5553 ;; If we have several article buffers, we kill them at exit.
5554 (unless gnus-single-article-buffer
5555 (gnus-kill-buffer gnus-article-buffer)
5556 (gnus-kill-buffer gnus-original-article-buffer)
5557 (setq gnus-article-current nil))
5558 (set-buffer buf)
5559 (if (not gnus-kill-summary-on-exit)
5560 (gnus-deaden-summary)
5561 ;; We set all buffer-local variables to nil. It is unclear why
5562 ;; this is needed, but if we don't, buffer-local variables are
5563 ;; not garbage-collected, it seems. This would the lead to en
5564 ;; ever-growing Emacs.
5565 (gnus-summary-clear-local-variables)
5566 (when (get-buffer gnus-article-buffer)
5567 (bury-buffer gnus-article-buffer))
5568 ;; We clear the global counterparts of the buffer-local
5569 ;; variables as well, just to be on the safe side.
5570 (set-buffer gnus-group-buffer)
5571 (gnus-summary-clear-local-variables)
5572 ;; Return to group mode buffer.
5573 (when (eq mode 'gnus-summary-mode)
5574 (gnus-kill-buffer buf)))
5575 (setq gnus-current-select-method gnus-select-method)
5576 (pop-to-buffer gnus-group-buffer)
eec82323
LMI		 5577 (if (not quit-config)
5578 (progn
a8151ef7 5579 (goto-char group-point)
eec82323
LMI		 5580 (gnus-configure-windows 'group 'force))
5581 (gnus-handle-ephemeral-exit quit-config))
6748645f 5582 ;; Clear the current group name.
eec82323
LMI		 5583 (unless quit-config
5584 (setq gnus-newsgroup-name nil)))))
5585
5586(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
5587(defun gnus-summary-exit-no-update (&optional no-questions)
5588 "Quit reading current newsgroup without updating read article info."
5589 (interactive)
eec82323
LMI		 5590 (let* ((group gnus-newsgroup-name)
5591 (quit-config (gnus-group-quit-config group)))
5592 (when (or no-questions
5593 gnus-expert-user
5594 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 5595 (gnus-async-halt-prefetch)
16409b0b
GM		 5596 (mapcar 'funcall
5597 (delq 'gnus-summary-expire-articles
5598 (copy-sequence gnus-summary-prepare-exit-hook)))
5599 (when (gnus-buffer-live-p gnus-article-buffer)
5600 (save-excursion
5601 (set-buffer gnus-article-buffer)
5602 (mm-destroy-parts gnus-article-mime-handles)
5603 ;; Set it to nil for safety reason.
5604 (setq gnus-article-mime-handle-alist nil)
5605 (setq gnus-article-mime-handles nil)))
eec82323
LMI		 5606 ;; If we have several article buffers, we kill them at exit.
5607 (unless gnus-single-article-buffer
5608 (gnus-kill-buffer gnus-article-buffer)
5609 (gnus-kill-buffer gnus-original-article-buffer)
5610 (setq gnus-article-current nil))
5611 (if (not gnus-kill-summary-on-exit)
5612 (gnus-deaden-summary)
5613 (gnus-close-group group)
5614 (gnus-summary-clear-local-variables)
5615 (set-buffer gnus-group-buffer)
5616 (gnus-summary-clear-local-variables)
5617 (when (get-buffer gnus-summary-buffer)
5618 (kill-buffer gnus-summary-buffer)))
5619 (unless gnus-single-article-buffer
5620 (setq gnus-article-current nil))
5621 (when gnus-use-trees
5622 (gnus-tree-close group))
5623 (gnus-async-prefetch-remove-group group)
5624 (when (get-buffer gnus-article-buffer)
5625 (bury-buffer gnus-article-buffer))
5626 ;; Return to the group buffer.
5627 (gnus-configure-windows 'group 'force)
5628 ;; Clear the current group name.
5629 (setq gnus-newsgroup-name nil)
5630 (when (equal (gnus-group-group-name) group)
5631 (gnus-group-next-unread-group 1))
5632 (when quit-config
5633 (gnus-handle-ephemeral-exit quit-config)))))
5634
5635(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI		 5636 "Handle movement when leaving an ephemeral group.
5637The state which existed when entering the ephemeral is reset."
eec82323
LMI		 5638 (if (not (buffer-name (car quit-config)))
5639 (gnus-configure-windows 'group 'force)
5640 (set-buffer (car quit-config))
5641 (cond ((eq major-mode 'gnus-summary-mode)
5642 (gnus-set-global-variables))
5643 ((eq major-mode 'gnus-article-mode)
5644 (save-excursion
5645 ;; The `gnus-summary-buffer' variable may point
5646 ;; to the old summary buffer when using a single
5647 ;; article buffer.
5648 (unless (gnus-buffer-live-p gnus-summary-buffer)
5649 (set-buffer gnus-group-buffer))
5650 (set-buffer gnus-summary-buffer)
5651 (gnus-set-global-variables))))
5652 (if (or (eq (cdr quit-config) 'article)
5653 (eq (cdr quit-config) 'pick))
5654 (progn
5655 ;; The current article may be from the ephemeral group
5656 ;; thus it is best that we reload this article
5657 (gnus-summary-show-article)
5658 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
5659 (gnus-configure-windows 'pick 'force)
5660 (gnus-configure-windows (cdr quit-config) 'force)))
5661 (gnus-configure-windows (cdr quit-config) 'force))
5662 (when (eq major-mode 'gnus-summary-mode)
5663 (gnus-summary-next-subject 1 nil t)
5664 (gnus-summary-recenter)
5665 (gnus-summary-position-point))))
5666
5667;;; Dead summaries.
5668
5669(defvar gnus-dead-summary-mode-map nil)
5670
5671(unless gnus-dead-summary-mode-map
5672 (setq gnus-dead-summary-mode-map (make-keymap))
5673 (suppress-keymap gnus-dead-summary-mode-map)
5674 (substitute-key-definition
5675 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
a8151ef7 5676 (let ((keys '("\C-d" "\r" "\177" [delete])))
eec82323
LMI		 5677 (while keys
5678 (define-key gnus-dead-summary-mode-map
5679 (pop keys) 'gnus-summary-wake-up-the-dead))))
5680
5681(defvar gnus-dead-summary-mode nil
5682 "Minor mode for Gnus summary buffers.")
5683
5684(defun gnus-dead-summary-mode (&optional arg)
5685 "Minor mode for Gnus summary buffers."
5686 (interactive "P")
5687 (when (eq major-mode 'gnus-summary-mode)
5688 (make-local-variable 'gnus-dead-summary-mode)
5689 (setq gnus-dead-summary-mode
5690 (if (null arg) (not gnus-dead-summary-mode)
5691 (> (prefix-numeric-value arg) 0)))
5692 (when gnus-dead-summary-mode
a8151ef7
LMI		 5693 (gnus-add-minor-mode
5694 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI		 5695
5696(defun gnus-deaden-summary ()
5697 "Make the current summary buffer into a dead summary buffer."
5698 ;; Kill any previous dead summary buffer.
5699 (when (and gnus-dead-summary
5700 (buffer-name gnus-dead-summary))
5701 (save-excursion
5702 (set-buffer gnus-dead-summary)
5703 (when gnus-dead-summary-mode
5704 (kill-buffer (current-buffer)))))
5705 ;; Make this the current dead summary.
5706 (setq gnus-dead-summary (current-buffer))
5707 (gnus-dead-summary-mode 1)
5708 (let ((name (buffer-name)))
5709 (when (string-match "Summary" name)
5710 (rename-buffer
5711 (concat (substring name 0 (match-beginning 0)) "Dead "
5712 (substring name (match-beginning 0)))
16409b0b
GM		 5713 t)
5714 (bury-buffer))))
eec82323
LMI		 5715
5716(defun gnus-kill-or-deaden-summary (buffer)
5717 "Kill or deaden the summary BUFFER."
6748645f
LMI		 5718 (save-excursion
5719 (when (and (buffer-name buffer)
5720 (not gnus-single-article-buffer))
5721 (save-excursion
5722 (set-buffer buffer)
5723 (gnus-kill-buffer gnus-article-buffer)
5724 (gnus-kill-buffer gnus-original-article-buffer)))
5725 (cond (gnus-kill-summary-on-exit
5726 (when (and gnus-use-trees
5727 (gnus-buffer-exists-p buffer))
5728 (save-excursion
5729 (set-buffer buffer)
5730 (gnus-tree-close gnus-newsgroup-name)))
5731 (gnus-kill-buffer buffer))
5732 ((gnus-buffer-exists-p buffer)
eec82323 5733 (save-excursion
6748645f
LMI		 5734 (set-buffer buffer)
5735 (gnus-deaden-summary))))))
eec82323
LMI		 5736
5737(defun gnus-summary-wake-up-the-dead (&rest args)
5738 "Wake up the dead summary buffer."
5739 (interactive)
5740 (gnus-dead-summary-mode -1)
5741 (let ((name (buffer-name)))
5742 (when (string-match "Dead " name)
5743 (rename-buffer
5744 (concat (substring name 0 (match-beginning 0))
5745 (substring name (match-end 0)))
5746 t)))
5747 (gnus-message 3 "This dead summary is now alive again"))
5748
5749;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
5750(defun gnus-summary-fetch-faq (&optional faq-dir)
5751 "Fetch the FAQ for the current group.
5752If FAQ-DIR (the prefix), prompt for a directory to search for the faq
5753in."
5754 (interactive
5755 (list
5756 (when current-prefix-arg
5757 (completing-read
5758 "Faq dir: " (and (listp gnus-group-faq-directory)
a8151ef7
LMI		 5759 (mapcar (lambda (file) (list file))
5760 gnus-group-faq-directory))))))
eec82323
LMI		 5761 (let (gnus-faq-buffer)
5762 (when (setq gnus-faq-buffer
5763 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
5764 (gnus-configure-windows 'summary-faq))))
5765
5766;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
5767(defun gnus-summary-describe-group (&optional force)
5768 "Describe the current newsgroup."
5769 (interactive "P")
5770 (gnus-group-describe-group force gnus-newsgroup-name))
5771
5772(defun gnus-summary-describe-briefly ()
5773 "Describe summary mode commands briefly."
5774 (interactive)
16409b0b 5775 (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		 5776
5777;; Walking around group mode buffer from summary mode.
5778
5779(defun gnus-summary-next-group (&optional no-article target-group backward)
5780 "Exit current newsgroup and then select next unread newsgroup.
5781If prefix argument NO-ARTICLE is non-nil, no article is selected
5782initially. If NEXT-GROUP, go to this group. If BACKWARD, go to
5783previous group instead."
5784 (interactive "P")
eec82323
LMI		 5785 ;; Stop pre-fetching.
5786 (gnus-async-halt-prefetch)
5787 (let ((current-group gnus-newsgroup-name)
5788 (current-buffer (current-buffer))
5789 entered)
5790 ;; First we semi-exit this group to update Xrefs and all variables.
5791 ;; We can't do a real exit, because the window conf must remain
5792 ;; the same in case the user is prompted for info, and we don't
5793 ;; want the window conf to change before that...
5794 (gnus-summary-exit t)
5795 (while (not entered)
5796 ;; Then we find what group we are supposed to enter.
5797 (set-buffer gnus-group-buffer)
5798 (gnus-group-jump-to-group current-group)
5799 (setq target-group
5800 (or target-group
5801 (if (eq gnus-keep-same-level 'best)
5802 (gnus-summary-best-group gnus-newsgroup-name)
5803 (gnus-summary-search-group backward gnus-keep-same-level))))
5804 (if (not target-group)
5805 ;; There are no further groups, so we return to the group
5806 ;; buffer.
5807 (progn
5808 (gnus-message 5 "Returning to the group buffer")
5809 (setq entered t)
5810 (when (gnus-buffer-live-p current-buffer)
5811 (set-buffer current-buffer)
5812 (gnus-summary-exit))
6748645f 5813 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI		 5814 ;; We try to enter the target group.
5815 (gnus-group-jump-to-group target-group)
5816 (let ((unreads (gnus-group-group-unread)))
5817 (if (and (or (eq t unreads)
5818 (and unreads (not (zerop unreads))))
5819 (gnus-summary-read-group
a8151ef7 5820 target-group nil no-article
6748645f
LMI		 5821 (and (buffer-name current-buffer) current-buffer)
5822 nil backward))
eec82323
LMI		 5823 (setq entered t)
5824 (setq current-group target-group
5825 target-group nil)))))))
5826
5827(defun gnus-summary-prev-group (&optional no-article)
5828 "Exit current newsgroup and then select previous unread newsgroup.
5829If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
5830 (interactive "P")
5831 (gnus-summary-next-group no-article nil t))
5832
5833;; Walking around summary lines.
5834
6748645f 5835(defun gnus-summary-first-subject (&optional unread undownloaded)
eec82323
LMI		 5836 "Go to the first unread subject.
5837If UNREAD is non-nil, go to the first unread article.
5838Returns the article selected or nil if there are no unread articles."
5839 (interactive "P")
5840 (prog1
5841 (cond
5842 ;; Empty summary.
5843 ((null gnus-newsgroup-data)
5844 (gnus-message 3 "No articles in the group")
5845 nil)
5846 ;; Pick the first article.
5847 ((not unread)
5848 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
5849 (gnus-data-number (car gnus-newsgroup-data)))
5850 ;; No unread articles.
5851 ((null gnus-newsgroup-unreads)
5852 (gnus-message 3 "No more unread articles")
5853 nil)
5854 ;; Find the first unread article.
5855 (t
5856 (let ((data gnus-newsgroup-data))
5857 (while (and data
6748645f
LMI		 5858 (and (not (and undownloaded
5859 (eq gnus-undownloaded-mark
5860 (gnus-data-mark (car data)))))
5861 (not (gnus-data-unread-p (car data)))))
eec82323
LMI		 5862 (setq data (cdr data)))
5863 (when data
5864 (goto-char (gnus-data-pos (car data)))
5865 (gnus-data-number (car data))))))
5866 (gnus-summary-position-point)))
5867
5868(defun gnus-summary-next-subject (n &optional unread dont-display)
5869 "Go to next N'th summary line.
5870If N is negative, go to the previous N'th subject line.
5871If UNREAD is non-nil, only unread articles are selected.
5872The difference between N and the actual number of steps taken is
5873returned."
5874 (interactive "p")
5875 (let ((backward (< n 0))
5876 (n (abs n)))
5877 (while (and (> n 0)
5878 (if backward
5879 (gnus-summary-find-prev unread)
5880 (gnus-summary-find-next unread)))
16409b0b
GM		 5881 (unless (zerop (setq n (1- n)))
5882 (gnus-summary-show-thread)))
eec82323
LMI		 5883 (when (/= 0 n)
5884 (gnus-message 7 "No more%s articles"
5885 (if unread " unread" "")))
5886 (unless dont-display
5887 (gnus-summary-recenter)
5888 (gnus-summary-position-point))
5889 n))
5890
5891(defun gnus-summary-next-unread-subject (n)
5892 "Go to next N'th unread summary line."
5893 (interactive "p")
5894 (gnus-summary-next-subject n t))
5895
5896(defun gnus-summary-prev-subject (n &optional unread)
5897 "Go to previous N'th summary line.
5898If optional argument UNREAD is non-nil, only unread article is selected."
5899 (interactive "p")
5900 (gnus-summary-next-subject (- n) unread))
5901
5902(defun gnus-summary-prev-unread-subject (n)
5903 "Go to previous N'th unread summary line."
5904 (interactive "p")
5905 (gnus-summary-next-subject (- n) t))
5906
5907(defun gnus-summary-goto-subject (article &optional force silent)
5908 "Go the subject line of ARTICLE.
5909If FORCE, also allow jumping to articles not currently shown."
5910 (interactive "nArticle number: ")
5911 (let ((b (point))
5912 (data (gnus-data-find article)))
5913 ;; We read in the article if we have to.
5914 (and (not data)
5915 force
6748645f
LMI		 5916 (gnus-summary-insert-subject
5917 article
5918 (if (or (numberp force) (vectorp force)) force)
5919 t)
eec82323
LMI		 5920 (setq data (gnus-data-find article)))
5921 (goto-char b)
5922 (if (not data)
5923 (progn
5924 (unless silent
5925 (gnus-message 3 "Can't find article %d" article))
5926 nil)
5927 (goto-char (gnus-data-pos data))
6748645f 5928 (gnus-summary-position-point)
eec82323
LMI		 5929 article)))
5930
5931;; Walking around summary lines with displaying articles.
5932
5933(defun gnus-summary-expand-window (&optional arg)
5934 "Make the summary buffer take up the entire Emacs frame.
5935Given a prefix, will force an `article' buffer configuration."
5936 (interactive "P")
eec82323
LMI		 5937 (if arg
5938 (gnus-configure-windows 'article 'force)
5939 (gnus-configure-windows 'summary 'force)))
5940
5941(defun gnus-summary-display-article (article &optional all-header)
5942 "Display ARTICLE in article buffer."
d4dfaa19
DL		 5943 (when (gnus-buffer-live-p gnus-article-buffer)
5944 (with-current-buffer gnus-article-buffer
5945 (mm-enable-multibyte-mule4)))
eec82323
LMI		 5946 (gnus-set-global-variables)
5947 (if (null article)
5948 nil
5949 (prog1
5950 (if gnus-summary-display-article-function
5951 (funcall gnus-summary-display-article-function article all-header)
5952 (gnus-article-prepare article all-header))
6748645f 5953 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI		 5954 (when (and gnus-current-article
5955 (not (zerop gnus-current-article)))
5956 (gnus-summary-goto-subject gnus-current-article))
5957 (gnus-summary-recenter)
5958 (when (and gnus-use-trees gnus-show-threads)
5959 (gnus-possibly-generate-tree article)
5960 (gnus-highlight-selected-tree article))
5961 ;; Successfully display article.
5962 (gnus-article-set-window-start
5963 (cdr (assq article gnus-newsgroup-bookmarks))))))
5964
5965(defun gnus-summary-select-article (&optional all-headers force pseudo article)
5966 "Select the current article.
5967If ALL-HEADERS is non-nil, show all header fields. If FORCE is
5968non-nil, the article will be re-fetched even if it already present in
5969the article buffer. If PSEUDO is non-nil, pseudo-articles will also
5970be displayed."
5971 ;; Make sure we are in the summary buffer to work around bbdb bug.
5972 (unless (eq major-mode 'gnus-summary-mode)
5973 (set-buffer gnus-summary-buffer))
5974 (let ((article (or article (gnus-summary-article-number)))
5975 (all-headers (not (not all-headers))) ;Must be T or NIL.
16409b0b 5976 gnus-summary-display-article-function)
eec82323
LMI		 5977 (and (not pseudo)
5978 (gnus-summary-article-pseudo-p article)
a8151ef7 5979 (error "This is a pseudo-article"))
16409b0b
GM		 5980 (save-excursion
5981 (set-buffer gnus-summary-buffer)
5982 (if (or (and gnus-single-article-buffer
5983 (or (null gnus-current-article)
5984 (null gnus-article-current)
5985 (null (get-buffer gnus-article-buffer))
5986 (not (eq article (cdr gnus-article-current)))
5987 (not (equal (car gnus-article-current)
5988 gnus-newsgroup-name))))
5989 (and (not gnus-single-article-buffer)
5990 (or (null gnus-current-article)
5991 (not (eq gnus-current-article article))))
5992 force)
5993 ;; The requested article is different from the current article.
5994 (progn
16409b0b
GM		 5995 (gnus-summary-display-article article all-headers)
5996 (when (gnus-buffer-live-p gnus-article-buffer)
d4dfaa19 5997 (with-current-buffer gnus-article-buffer
16409b0b 5998 (if (not gnus-article-decoded-p) ;; a local variable
d4dfaa19 5999 (mm-disable-multibyte-mule4))))
eec82323
LMI		 6000 (when (or all-headers gnus-show-all-headers)
6001 (gnus-article-show-all-headers))
16409b0b
GM		 6002 (gnus-article-set-window-start
6003 (cdr (assq article gnus-newsgroup-bookmarks)))
6004 article)
6005 (when (or all-headers gnus-show-all-headers)
6006 (gnus-article-show-all-headers))
6007 'old))))
eec82323
LMI		 6008
6009(defun gnus-summary-set-current-mark (&optional current-mark)
6010 "Obsolete function."
6011 nil)
6012
6013(defun gnus-summary-next-article (&optional unread subject backward push)
6014 "Select the next article.
6015If UNREAD, only unread articles are selected.
6016If SUBJECT, only articles with SUBJECT are selected.
6017If BACKWARD, the previous article is selected instead of the next."
6018 (interactive "P")
eec82323
LMI		 6019 (cond
6020 ;; Is there such an article?
6021 ((and (gnus-summary-search-forward unread subject backward)
6022 (or (gnus-summary-display-article (gnus-summary-article-number))
6023 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
6024 (gnus-summary-position-point))
6025 ;; If not, we try the first unread, if that is wanted.
6026 ((and subject
6027 gnus-auto-select-same
6028 (gnus-summary-first-unread-article))
6029 (gnus-summary-position-point)
6030 (gnus-message 6 "Wrapped"))
6031 ;; Try to get next/previous article not displayed in this group.
6032 ((and gnus-auto-extend-newsgroup
6033 (not unread) (not subject))
6034 (gnus-summary-goto-article
6035 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 6036 nil (count-lines (point-min) (point))))
eec82323
LMI		 6037 ;; Go to next/previous group.
6038 (t
6039 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
6040 (gnus-summary-jump-to-group gnus-newsgroup-name))
6041 (let ((cmd last-command-char)
6042 (point
6043 (save-excursion
6044 (set-buffer gnus-group-buffer)
6045 (point)))
6046 (group
6047 (if (eq gnus-keep-same-level 'best)
6048 (gnus-summary-best-group gnus-newsgroup-name)
6049 (gnus-summary-search-group backward gnus-keep-same-level))))
6050 ;; For some reason, the group window gets selected. We change
6051 ;; it back.
6052 (select-window (get-buffer-window (current-buffer)))
6053 ;; Select next unread newsgroup automagically.
6054 (cond
6055 ((or (not gnus-auto-select-next)
6056 (not cmd))
6057 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
6058 ((or (eq gnus-auto-select-next 'quietly)
6059 (and (eq gnus-auto-select-next 'slightly-quietly)
6060 push)
6061 (and (eq gnus-auto-select-next 'almost-quietly)
6062 (gnus-summary-last-article-p)))
6063 ;; Select quietly.
6064 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
6065 (gnus-summary-exit)
6066 (gnus-message 7 "No more%s articles (%s)..."
6067 (if unread " unread" "")
6068 (if group (concat "selecting " group)
6069 "exiting"))
6070 (gnus-summary-next-group nil group backward)))
6071 (t
6072 (when (gnus-key-press-event-p last-input-event)
6073 (gnus-summary-walk-group-buffer
6074 gnus-newsgroup-name cmd unread backward point))))))))
6075
6076(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
6077 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
6078 (?\C-p (gnus-group-prev-unread-group 1))))
6079 (cursor-in-echo-area t)
6080 keve key group ended)
6081 (save-excursion
6082 (set-buffer gnus-group-buffer)
6083 (goto-char start)
6084 (setq group
6085 (if (eq gnus-keep-same-level 'best)
6086 (gnus-summary-best-group gnus-newsgroup-name)
6087 (gnus-summary-search-group backward gnus-keep-same-level))))
6088 (while (not ended)
6089 (gnus-message
6090 5 "No more%s articles%s" (if unread " unread" "")
6091 (if (and group
6092 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
6093 (format " (Type %s for %s [%s])"
6094 (single-key-description cmd) group
6095 (car (gnus-gethash group gnus-newsrc-hashtb)))
6096 (format " (Type %s to exit %s)"
6097 (single-key-description cmd)
6098 gnus-newsgroup-name)))
6099 ;; Confirm auto selection.
6100 (setq key (car (setq keve (gnus-read-event-char))))
6101 (setq ended t)
6102 (cond
6103 ((assq key keystrokes)
6104 (let ((obuf (current-buffer)))
6105 (switch-to-buffer gnus-group-buffer)
6106 (when group
6107 (gnus-group-jump-to-group group))
6108 (eval (cadr (assq key keystrokes)))
6109 (setq group (gnus-group-group-name))
6110 (switch-to-buffer obuf))
6111 (setq ended nil))
6112 ((equal key cmd)
6113 (if (or (not group)
6114 (gnus-ephemeral-group-p gnus-newsgroup-name))
6115 (gnus-summary-exit)
6116 (gnus-summary-next-group nil group backward)))
6117 (t
6118 (push (cdr keve) unread-command-events))))))
6119
6120(defun gnus-summary-next-unread-article ()
6121 "Select unread article after current one."
6122 (interactive)
6123 (gnus-summary-next-article
6124 (or (not (eq gnus-summary-goto-unread 'never))
6125 (gnus-summary-last-article-p (gnus-summary-article-number)))
6126 (and gnus-auto-select-same
6127 (gnus-summary-article-subject))))
6128
6129(defun gnus-summary-prev-article (&optional unread subject)
6130 "Select the article after the current one.
6131If UNREAD is non-nil, only unread articles are selected."
6132 (interactive "P")
6133 (gnus-summary-next-article unread subject t))
6134
6135(defun gnus-summary-prev-unread-article ()
6136 "Select unread article before current one."
6137 (interactive)
6138 (gnus-summary-prev-article
6139 (or (not (eq gnus-summary-goto-unread 'never))
6140 (gnus-summary-first-article-p (gnus-summary-article-number)))
6141 (and gnus-auto-select-same
6142 (gnus-summary-article-subject))))
6143
6144(defun gnus-summary-next-page (&optional lines circular)
6145 "Show next page of the selected article.
6146If at the end of the current article, select the next article.
6147LINES says how many lines should be scrolled up.
6148
6149If CIRCULAR is non-nil, go to the start of the article instead of
6150selecting the next article when reaching the end of the current
6151article."
6152 (interactive "P")
6153 (setq gnus-summary-buffer (current-buffer))
6154 (gnus-set-global-variables)
6155 (let ((article (gnus-summary-article-number))
6156 (article-window (get-buffer-window gnus-article-buffer t))
6157 endp)
6748645f
LMI		 6158 ;; If the buffer is empty, we have no article.
6159 (unless article
6160 (error "No article to select"))
eec82323
LMI		 6161 (gnus-configure-windows 'article)
6162 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
6163 (if (and (eq gnus-summary-goto-unread 'never)
6164 (not (gnus-summary-last-article-p article)))
6165 (gnus-summary-next-article)
6166 (gnus-summary-next-unread-article))
6167 (if (or (null gnus-current-article)
6168 (null gnus-article-current)
6169 (/= article (cdr gnus-article-current))
6170 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
6171 ;; Selected subject is different from current article's.
6172 (gnus-summary-display-article article)
6173 (when article-window
6174 (gnus-eval-in-buffer-window gnus-article-buffer
6175 (setq endp (gnus-article-next-page lines)))
6176 (when endp
6177 (cond (circular
6178 (gnus-summary-beginning-of-article))
6179 (lines
6180 (gnus-message 3 "End of message"))
6181 ((null lines)
6182 (if (and (eq gnus-summary-goto-unread 'never)
6183 (not (gnus-summary-last-article-p article)))
6184 (gnus-summary-next-article)
6185 (gnus-summary-next-unread-article))))))))
6186 (gnus-summary-recenter)
6187 (gnus-summary-position-point)))
6188
6189(defun gnus-summary-prev-page (&optional lines move)
6190 "Show previous page of selected article.
6191Argument LINES specifies lines to be scrolled down.
6192If MOVE, move to the previous unread article if point is at
6193the beginning of the buffer."
6194 (interactive "P")
eec82323
LMI		 6195 (let ((article (gnus-summary-article-number))
6196 (article-window (get-buffer-window gnus-article-buffer t))
6197 endp)
6198 (gnus-configure-windows 'article)
6199 (if (or (null gnus-current-article)
6200 (null gnus-article-current)
6201 (/= article (cdr gnus-article-current))
6202 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
6203 ;; Selected subject is different from current article's.
6204 (gnus-summary-display-article article)
6205 (gnus-summary-recenter)
6206 (when article-window
6207 (gnus-eval-in-buffer-window gnus-article-buffer
6208 (setq endp (gnus-article-prev-page lines)))
6209 (when (and move endp)
6210 (cond (lines
6211 (gnus-message 3 "Beginning of message"))
6212 ((null lines)
6213 (if (and (eq gnus-summary-goto-unread 'never)
6214 (not (gnus-summary-first-article-p article)))
6215 (gnus-summary-prev-article)
6216 (gnus-summary-prev-unread-article))))))))
6217 (gnus-summary-position-point))
6218
6219(defun gnus-summary-prev-page-or-article (&optional lines)
6220 "Show previous page of selected article.
6221Argument LINES specifies lines to be scrolled down.
6222If at the beginning of the article, go to the next article."
6223 (interactive "P")
6224 (gnus-summary-prev-page lines t))
6225
6226(defun gnus-summary-scroll-up (lines)
6227 "Scroll up (or down) one line current article.
6228Argument LINES specifies lines to be scrolled up (or down if negative)."
6229 (interactive "p")
eec82323
LMI		 6230 (gnus-configure-windows 'article)
6231 (gnus-summary-show-thread)
6232 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
6233 (gnus-eval-in-buffer-window gnus-article-buffer
6234 (cond ((> lines 0)
6235 (when (gnus-article-next-page lines)
6236 (gnus-message 3 "End of message")))
6237 ((< lines 0)
6238 (gnus-article-prev-page (- lines))))))
6239 (gnus-summary-recenter)
6240 (gnus-summary-position-point))
6241
6748645f
LMI		 6242(defun gnus-summary-scroll-down (lines)
6243 "Scroll down (or up) one line current article.
6244Argument LINES specifies lines to be scrolled down (or up if negative)."
6245 (interactive "p")
6246 (gnus-summary-scroll-up (- lines)))
6247
eec82323
LMI		 6248(defun gnus-summary-next-same-subject ()
6249 "Select next article which has the same subject as current one."
6250 (interactive)
eec82323
LMI		 6251 (gnus-summary-next-article nil (gnus-summary-article-subject)))
6252
6253(defun gnus-summary-prev-same-subject ()
6254 "Select previous article which has the same subject as current one."
6255 (interactive)
eec82323
LMI		 6256 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
6257
6258(defun gnus-summary-next-unread-same-subject ()
6259 "Select next unread article which has the same subject as current one."
6260 (interactive)
eec82323
LMI		 6261 (gnus-summary-next-article t (gnus-summary-article-subject)))
6262
6263(defun gnus-summary-prev-unread-same-subject ()
6264 "Select previous unread article which has the same subject as current one."
6265 (interactive)
eec82323
LMI		 6266 (gnus-summary-prev-article t (gnus-summary-article-subject)))
6267
6268(defun gnus-summary-first-unread-article ()
6269 "Select the first unread article.
6270Return nil if there are no unread articles."
6271 (interactive)
eec82323
LMI		 6272 (prog1
6273 (when (gnus-summary-first-subject t)
6274 (gnus-summary-show-thread)
6275 (gnus-summary-first-subject t)
6276 (gnus-summary-display-article (gnus-summary-article-number)))
6277 (gnus-summary-position-point)))
6278
16409b0b
GM		 6279(defun gnus-summary-first-unread-subject ()
6280 "Place the point on the subject line of the first unread article.
6281Return nil if there are no unread articles."
6282 (interactive)
6283 (prog1
6284 (when (gnus-summary-first-subject t)
6285 (gnus-summary-show-thread)
6286 (gnus-summary-first-subject t))
6287 (gnus-summary-position-point)))
6288
eec82323
LMI		 6289(defun gnus-summary-first-article ()
6290 "Select the first article.
6291Return nil if there are no articles."
6292 (interactive)
eec82323
LMI		 6293 (prog1
6294 (when (gnus-summary-first-subject)
16409b0b
GM		 6295 (gnus-summary-show-thread)
6296 (gnus-summary-first-subject)
6297 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI		 6298 (gnus-summary-position-point)))
6299
6300(defun gnus-summary-best-unread-article ()
6301 "Select the unread article with the highest score."
6302 (interactive)
eec82323
LMI		 6303 (let ((best -1000000)
6304 (data gnus-newsgroup-data)
6305 article score)
6306 (while data
6307 (and (gnus-data-unread-p (car data))
6308 (> (setq score
6309 (gnus-summary-article-score (gnus-data-number (car data))))
6310 best)
6311 (setq best score
6312 article (gnus-data-number (car data))))
6313 (setq data (cdr data)))
6314 (prog1
6315 (if article
6316 (gnus-summary-goto-article article)
6317 (error "No unread articles"))
6318 (gnus-summary-position-point))))
6319
6320(defun gnus-summary-last-subject ()
6321 "Go to the last displayed subject line in the group."
6322 (let ((article (gnus-data-number (car (gnus-data-list t)))))
6323 (when article
6324 (gnus-summary-goto-subject article))))
6325
6326(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI		 6327 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
6328If ALL-HEADERS is non-nil, no header lines are hidden.
6329If FORCE, go to the article even if it isn't displayed. If FORCE
6330is a number, it is the line the article is to be displayed on."
eec82323
LMI		 6331 (interactive
6332 (list
6748645f
LMI		 6333 (completing-read
6334 "Article number or Message-ID: "
6335 (mapcar (lambda (number) (list (int-to-string number)))
6336 gnus-newsgroup-limit))
eec82323
LMI		 6337 current-prefix-arg
6338 t))
6339 (prog1
6748645f
LMI		 6340 (if (and (stringp article)
6341 (string-match "@" article))
6342 (gnus-summary-refer-article article)
6343 (when (stringp article)
6344 (setq article (string-to-number article)))
6345 (if (gnus-summary-goto-subject article force)
6346 (gnus-summary-display-article article all-headers)
6347 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI		 6348 (gnus-summary-position-point)))
6349
6350(defun gnus-summary-goto-last-article ()
6351 "Go to the previously read article."
6352 (interactive)
6353 (prog1
6354 (when gnus-last-article
6748645f 6355 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI		 6356 (gnus-summary-position-point)))
6357
6358(defun gnus-summary-pop-article (number)
6359 "Pop one article off the history and go to the previous.
6360NUMBER articles will be popped off."
6361 (interactive "p")
6362 (let (to)
6363 (setq gnus-newsgroup-history
6364 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
6365 (if to
6748645f 6366 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI		 6367 (error "Article history empty")))
6368 (gnus-summary-position-point))
6369
6370;; Summary commands and functions for limiting the summary buffer.
6371
6372(defun gnus-summary-limit-to-articles (n)
6373 "Limit the summary buffer to the next N articles.
6374If not given a prefix, use the process marked articles instead."
6375 (interactive "P")
eec82323
LMI		 6376 (prog1
6377 (let ((articles (gnus-summary-work-articles n)))
6378 (setq gnus-newsgroup-processable nil)
6379 (gnus-summary-limit articles))
6380 (gnus-summary-position-point)))
6381
6382(defun gnus-summary-pop-limit (&optional total)
6383 "Restore the previous limit.
6384If given a prefix, remove all limits."
6385 (interactive "P")
eec82323
LMI		 6386 (when total
6387 (setq gnus-newsgroup-limits
6388 (list (mapcar (lambda (h) (mail-header-number h))
6389 gnus-newsgroup-headers))))
6390 (unless gnus-newsgroup-limits
6391 (error "No limit to pop"))
6392 (prog1
6393 (gnus-summary-limit nil 'pop)
6394 (gnus-summary-position-point)))
6395
6396(defun gnus-summary-limit-to-subject (subject &optional header)
6397 "Limit the summary buffer to articles that have subjects that match a regexp."
6398 (interactive "sLimit to subject (regexp): ")
6399 (unless header
6400 (setq header "subject"))
6401 (when (not (equal "" subject))
6402 (prog1
6403 (let ((articles (gnus-summary-find-matching
6404 (or header "subject") subject 'all)))
6405 (unless articles
6406 (error "Found no matches for \"%s\"" subject))
6407 (gnus-summary-limit articles))
6408 (gnus-summary-position-point))))
6409
6410(defun gnus-summary-limit-to-author (from)
6411 "Limit the summary buffer to articles that have authors that match a regexp."
6412 (interactive "sLimit to author (regexp): ")
6413 (gnus-summary-limit-to-subject from "from"))
6414
6415(defun gnus-summary-limit-to-age (age &optional younger-p)
6416 "Limit the summary buffer to articles that are older than (or equal) AGE days.
6417If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
6418articles that are younger than AGE days."
16409b0b
GM		 6419 (interactive
6420 (let ((younger current-prefix-arg)
6421 (days-got nil)
6422 days)
6423 (while (not days-got)
6424 (setq days (if younger
6425 (read-string "Limit to articles within (in days): ")
6426 (read-string "Limit to articles old than (in days): ")))
6427 (when (> (length days) 0)
6428 (setq days (read days)))
6429 (if (numberp days)
6430 (setq days-got t)
6431 (message "Please enter a number.")
6432 (sleep-for 1)))
6433 (list days younger)))
eec82323
LMI		 6434 (prog1
6435 (let ((data gnus-newsgroup-data)
16409b0b 6436 (cutoff (days-to-time age))
eec82323
LMI		 6437 articles d date is-younger)
6438 (while (setq d (pop data))
6439 (when (and (vectorp (gnus-data-header d))
6440 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM		 6441 (setq is-younger (time-less-p
6442 (time-since (condition-case ()
6443 (date-to-time date)
6444 (error '(0 0))))
eec82323 6445 cutoff))
6748645f
LMI		 6446 (when (if younger-p
6447 is-younger
6448 (not is-younger))
eec82323
LMI		 6449 (push (gnus-data-number d) articles))))
6450 (gnus-summary-limit (nreverse articles)))
6451 (gnus-summary-position-point)))
6452
16409b0b
GM		 6453(defun gnus-summary-limit-to-extra (header regexp)
6454 "Limit the summary buffer to articles that match an 'extra' header."
6455 (interactive
6456 (let ((header
6457 (intern
6458 (gnus-completing-read
6459 (symbol-name (car gnus-extra-headers))
6460 "Limit extra header:"
6461 (mapcar (lambda (x)
6462 (cons (symbol-name x) x))
6463 gnus-extra-headers)
6464 nil
6465 t))))
6466 (list header
6467 (read-string (format "Limit to header %s (regexp): " header)))))
6468 (when (not (equal "" regexp))
6469 (prog1
6470 (let ((articles (gnus-summary-find-matching
6471 (cons 'extra header) regexp 'all)))
6472 (unless articles
6473 (error "Found no matches for \"%s\"" regexp))
6474 (gnus-summary-limit articles))
6475 (gnus-summary-position-point))))
6476
eec82323
LMI		 6477(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
6478(make-obsolete
6479 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
6480
6481(defun gnus-summary-limit-to-unread (&optional all)
6482 "Limit the summary buffer to articles that are not marked as read.
6483If ALL is non-nil, limit strictly to unread articles."
6484 (interactive "P")
6485 (if all
6486 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
6487 (gnus-summary-limit-to-marks
6488 ;; Concat all the marks that say that an article is read and have
6489 ;; those removed.
6490 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
6491 gnus-killed-mark gnus-kill-file-mark
6492 gnus-low-score-mark gnus-expirable-mark
6493 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
6494 gnus-duplicate-mark gnus-souped-mark)
6495 'reverse)))
6496
6497(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
6498(make-obsolete 'gnus-summary-delete-marked-with
6499 'gnus-summary-limit-exlude-marks)
6500
6501(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
6502 "Exclude articles that are marked with MARKS (e.g. \"DK\").
6503If REVERSE, limit the summary buffer to articles that are marked
6504with MARKS. MARKS can either be a string of marks or a list of marks.
6505Returns how many articles were removed."
6506 (interactive "sMarks: ")
6507 (gnus-summary-limit-to-marks marks t))
6508
6509(defun gnus-summary-limit-to-marks (marks &optional reverse)
6510 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
6511If REVERSE (the prefix), limit the summary buffer to articles that are
6512not marked with MARKS. MARKS can either be a string of marks or a
6513list of marks.
6514Returns how many articles were removed."
6748645f 6515 (interactive "sMarks: \nP")
eec82323
LMI		 6516 (prog1
6517 (let ((data gnus-newsgroup-data)
6518 (marks (if (listp marks) marks
6519 (append marks nil))) ; Transform to list.
6520 articles)
6521 (while data
6522 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
6523 (memq (gnus-data-mark (car data)) marks))
6524 (push (gnus-data-number (car data)) articles))
6525 (setq data (cdr data)))
6526 (gnus-summary-limit articles))
6527 (gnus-summary-position-point)))
6528
6529(defun gnus-summary-limit-to-score (&optional score)
6530 "Limit to articles with score at or above SCORE."
6531 (interactive "P")
eec82323
LMI		 6532 (setq score (if score
6533 (prefix-numeric-value score)
6534 (or gnus-summary-default-score 0)))
6535 (let ((data gnus-newsgroup-data)
6536 articles)
6537 (while data
6538 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
6539 score)
6540 (push (gnus-data-number (car data)) articles))
6541 (setq data (cdr data)))
6542 (prog1
6543 (gnus-summary-limit articles)
6544 (gnus-summary-position-point))))
6545
6748645f
LMI		 6546(defun gnus-summary-limit-include-thread (id)
6547 "Display all the hidden articles that in the current thread."
6548 (interactive (list (mail-header-id (gnus-summary-article-header))))
6549 (let ((articles (gnus-articles-in-thread
6550 (gnus-id-to-thread (gnus-root-id id)))))
6551 (prog1
6552 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
6553 (gnus-summary-position-point))))
6554
eec82323 6555(defun gnus-summary-limit-include-dormant ()
6748645f
LMI		 6556 "Display all the hidden articles that are marked as dormant.
6557Note that this command only works on a subset of the articles currently
6558fetched for this group."
eec82323 6559 (interactive)
eec82323
LMI		 6560 (unless gnus-newsgroup-dormant
6561 (error "There are no dormant articles in this group"))
6562 (prog1
6563 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
6564 (gnus-summary-position-point)))
6565
6566(defun gnus-summary-limit-exclude-dormant ()
6567 "Hide all dormant articles."
6568 (interactive)
eec82323
LMI		 6569 (prog1
6570 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
6571 (gnus-summary-position-point)))
6572
6573(defun gnus-summary-limit-exclude-childless-dormant ()
6574 "Hide all dormant articles that have no children."
6575 (interactive)
eec82323
LMI		 6576 (let ((data (gnus-data-list t))
6577 articles d children)
6578 ;; Find all articles that are either not dormant or have
6579 ;; children.
6580 (while (setq d (pop data))
6581 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
6582 (and (setq children
6583 (gnus-article-children (gnus-data-number d)))
6584 (let (found)
6585 (while children
6586 (when (memq (car children) articles)
6587 (setq children nil
6588 found t))
6589 (pop children))
6590 found)))
6591 (push (gnus-data-number d) articles)))
6592 ;; Do the limiting.
6593 (prog1
6594 (gnus-summary-limit articles)
6595 (gnus-summary-position-point))))
6596
6597(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
6598 "Mark all unread excluded articles as read.
6599If ALL, mark even excluded ticked and dormants as read."
6600 (interactive "P")
6601 (let ((articles (gnus-sorted-complement
6602 (sort
6603 (mapcar (lambda (h) (mail-header-number h))
6604 gnus-newsgroup-headers)
6605 '<)
6606 (sort gnus-newsgroup-limit '<)))
6607 article)
6748645f
LMI		 6608 (setq gnus-newsgroup-unreads
6609 (gnus-intersection gnus-newsgroup-unreads gnus-newsgroup-limit))
eec82323
LMI		 6610 (if all
6611 (setq gnus-newsgroup-dormant nil
6612 gnus-newsgroup-marked nil
6613 gnus-newsgroup-reads
6614 (nconc
6615 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
6616 gnus-newsgroup-reads))
6617 (while (setq article (pop articles))
6618 (unless (or (memq article gnus-newsgroup-dormant)
6619 (memq article gnus-newsgroup-marked))
6620 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
6621
6622(defun gnus-summary-limit (articles &optional pop)
6623 (if pop
6624 ;; We pop the previous limit off the stack and use that.
6625 (setq articles (car gnus-newsgroup-limits)
6626 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
6627 ;; We use the new limit, so we push the old limit on the stack.
6628 (push gnus-newsgroup-limit gnus-newsgroup-limits))
6629 ;; Set the limit.
6630 (setq gnus-newsgroup-limit articles)
6631 (let ((total (length gnus-newsgroup-data))
6632 (data (gnus-data-find-list (gnus-summary-article-number)))
6633 (gnus-summary-mark-below nil) ; Inhibit this.
6634 found)
6635 ;; This will do all the work of generating the new summary buffer
6636 ;; according to the new limit.
6637 (gnus-summary-prepare)
6638 ;; Hide any threads, possibly.
6639 (and gnus-show-threads
6640 gnus-thread-hide-subtree
6641 (gnus-summary-hide-all-threads))
6642 ;; Try to return to the article you were at, or one in the
6643 ;; neighborhood.
6644 (when data
6645 ;; We try to find some article after the current one.
6646 (while data
6647 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
6648 (setq data nil
6649 found t))
6650 (setq data (cdr data))))
6651 (unless found
6652 ;; If there is no data, that means that we were after the last
6653 ;; article. The same goes when we can't find any articles
6654 ;; after the current one.
6655 (goto-char (point-max))
6656 (gnus-summary-find-prev))
6748645f 6657 (gnus-set-mode-line 'summary)
eec82323
LMI		 6658 ;; We return how many articles were removed from the summary
6659 ;; buffer as a result of the new limit.
6660 (- total (length gnus-newsgroup-data))))
6661
6662(defsubst gnus-invisible-cut-children (threads)
6663 (let ((num 0))
6664 (while threads
6665 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
6666 (incf num))
6667 (pop threads))
6668 (< num 2)))
6669
6670(defsubst gnus-cut-thread (thread)
6671 "Go forwards in the thread until we find an article that we want to display."
6672 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 6673 (eq gnus-fetch-old-headers 'invisible)
16409b0b 6674 (numberp gnus-fetch-old-headers)
eec82323
LMI		 6675 (eq gnus-build-sparse-threads 'some)
6676 (eq gnus-build-sparse-threads 'more))
6677 ;; Deal with old-fetched headers and sparse threads.
6678 (while (and
6679 thread
6680 (or
6681 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
6682 (gnus-summary-article-ancient-p
6683 (mail-header-number (car thread))))
6748645f
LMI		 6684 (if (or (<= (length (cdr thread)) 1)
6685 (eq gnus-fetch-old-headers 'invisible))
6686 (setq gnus-newsgroup-limit
6687 (delq (mail-header-number (car thread))
6688 gnus-newsgroup-limit)
6689 thread (cadr thread))
6690 (when (gnus-invisible-cut-children (cdr thread))
6691 (let ((th (cdr thread)))
6692 (while th
6693 (if (memq (mail-header-number (caar th))
a8151ef7 6694 gnus-newsgroup-limit)
6748645f
LMI		 6695 (setq thread (car th)
6696 th nil)
6697 (setq th (cdr th))))))))))
eec82323
LMI		 6698 thread)
6699
6700(defun gnus-cut-threads (threads)
6701 "Cut off all uninteresting articles from the beginning of threads."
6702 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 6703 (eq gnus-fetch-old-headers 'invisible)
16409b0b 6704 (numberp gnus-fetch-old-headers)
eec82323
LMI		 6705 (eq gnus-build-sparse-threads 'some)
6706 (eq gnus-build-sparse-threads 'more))
6707 (let ((th threads))
6708 (while th
6709 (setcar th (gnus-cut-thread (car th)))
6710 (setq th (cdr th)))))
6711 ;; Remove nixed out threads.
6712 (delq nil threads))
6713
6714(defun gnus-summary-initial-limit (&optional show-if-empty)
6715 "Figure out what the initial limit is supposed to be on group entry.
6716This entails weeding out unwanted dormants, low-scored articles,
6717fetch-old-headers verbiage, and so on."
6718 ;; Most groups have nothing to remove.
6719 (if (or gnus-inhibit-limiting
6720 (and (null gnus-newsgroup-dormant)
6721 (not (eq gnus-fetch-old-headers 'some))
16409b0b 6722 (not (numberp gnus-fetch-old-headers))
6748645f 6723 (not (eq gnus-fetch-old-headers 'invisible))
eec82323
LMI		 6724 (null gnus-summary-expunge-below)
6725 (not (eq gnus-build-sparse-threads 'some))
6726 (not (eq gnus-build-sparse-threads 'more))
6727 (null gnus-thread-expunge-below)
6728 (not gnus-use-nocem)))
6729 () ; Do nothing.
6730 (push gnus-newsgroup-limit gnus-newsgroup-limits)
6731 (setq gnus-newsgroup-limit nil)
6732 (mapatoms
6733 (lambda (node)
6734 (unless (car (symbol-value node))
6735 ;; These threads have no parents -- they are roots.
6736 (let ((nodes (cdr (symbol-value node)))
6737 thread)
6738 (while nodes
6739 (if (and gnus-thread-expunge-below
6740 (< (gnus-thread-total-score (car nodes))
6741 gnus-thread-expunge-below))
6742 (gnus-expunge-thread (pop nodes))
6743 (setq thread (pop nodes))
6744 (gnus-summary-limit-children thread))))))
6745 gnus-newsgroup-dependencies)
6746 ;; If this limitation resulted in an empty group, we might
6747 ;; pop the previous limit and use it instead.
6748 (when (and (not gnus-newsgroup-limit)
6749 show-if-empty)
6750 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
6751 gnus-newsgroup-limit))
6752
6753(defun gnus-summary-limit-children (thread)
6754 "Return 1 if this subthread is visible and 0 if it is not."
6755 ;; First we get the number of visible children to this thread. This
6756 ;; is done by recursing down the thread using this function, so this
6757 ;; will really go down to a leaf article first, before slowly
6758 ;; working its way up towards the root.
6759 (when thread
6760 (let ((children
6761 (if (cdr thread)
6762 (apply '+ (mapcar 'gnus-summary-limit-children
6763 (cdr thread)))
6764 0))
6765 (number (mail-header-number (car thread)))
6766 score)
6767 (if (and
6768 (not (memq number gnus-newsgroup-marked))
6769 (or
6770 ;; If this article is dormant and has absolutely no visible
6771 ;; children, then this article isn't visible.
6772 (and (memq number gnus-newsgroup-dormant)
6773 (zerop children))
6774 ;; If this is "fetch-old-headered" and there is no
6775 ;; visible children, then we don't want this article.
16409b0b
GM		 6776 (and (or (eq gnus-fetch-old-headers 'some)
6777 (numberp gnus-fetch-old-headers))
eec82323
LMI		 6778 (gnus-summary-article-ancient-p number)
6779 (zerop children))
6748645f
LMI		 6780 ;; If this is "fetch-old-headered" and `invisible', then
6781 ;; we don't want this article.
6782 (and (eq gnus-fetch-old-headers 'invisible)
6783 (gnus-summary-article-ancient-p number))
eec82323
LMI		 6784 ;; If this is a sparsely inserted article with no children,
6785 ;; we don't want it.
6786 (and (eq gnus-build-sparse-threads 'some)
6787 (gnus-summary-article-sparse-p number)
6788 (zerop children))
6789 ;; If we use expunging, and this article is really
6790 ;; low-scored, then we don't want this article.
6791 (when (and gnus-summary-expunge-below
6792 (< (setq score
6793 (or (cdr (assq number gnus-newsgroup-scored))
6794 gnus-summary-default-score))
6795 gnus-summary-expunge-below))
6796 ;; We increase the expunge-tally here, but that has
6797 ;; nothing to do with the limits, really.
6798 (incf gnus-newsgroup-expunged-tally)
6799 ;; We also mark as read here, if that's wanted.
6800 (when (and gnus-summary-mark-below
6801 (< score gnus-summary-mark-below))
6802 (setq gnus-newsgroup-unreads
6803 (delq number gnus-newsgroup-unreads))
6804 (if gnus-newsgroup-auto-expire
6805 (push number gnus-newsgroup-expirable)
6806 (push (cons number gnus-low-score-mark)
6807 gnus-newsgroup-reads)))
6808 t)
6809 ;; Check NoCeM things.
6810 (if (and gnus-use-nocem
6811 (gnus-nocem-unwanted-article-p
6812 (mail-header-id (car thread))))
6813 (progn
a8151ef7 6814 (setq gnus-newsgroup-unreads
eec82323
LMI		 6815 (delq number gnus-newsgroup-unreads))
6816 t))))
6817 ;; Nope, invisible article.
6818 0
6819 ;; Ok, this article is to be visible, so we add it to the limit
6820 ;; and return 1.
6821 (push number gnus-newsgroup-limit)
6822 1))))
6823
6824(defun gnus-expunge-thread (thread)
6825 "Mark all articles in THREAD as read."
6826 (let* ((number (mail-header-number (car thread))))
6827 (incf gnus-newsgroup-expunged-tally)
6828 ;; We also mark as read here, if that's wanted.
6829 (setq gnus-newsgroup-unreads
6830 (delq number gnus-newsgroup-unreads))
6831 (if gnus-newsgroup-auto-expire
6832 (push number gnus-newsgroup-expirable)
6833 (push (cons number gnus-low-score-mark)
6834 gnus-newsgroup-reads)))
6835 ;; Go recursively through all subthreads.
6836 (mapcar 'gnus-expunge-thread (cdr thread)))
6837
6838;; Summary article oriented commands
6839
6840(defun gnus-summary-refer-parent-article (n)
6841 "Refer parent article N times.
6842If N is negative, go to ancestor -N instead.
6843The difference between N and the number of articles fetched is returned."
6844 (interactive "p")
eec82323
LMI		 6845 (let ((skip 1)
6846 error header ref)
6847 (when (not (natnump n))
6848 (setq skip (abs n)
6849 n 1))
6850 (while (and (> n 0)
6851 (not error))
6852 (setq header (gnus-summary-article-header))
6853 (if (and (eq (mail-header-number header)
6854 (cdr gnus-article-current))
6855 (equal gnus-newsgroup-name
6856 (car gnus-article-current)))
6857 ;; If we try to find the parent of the currently
6858 ;; displayed article, then we take a look at the actual
6859 ;; References header, since this is slightly more
6860 ;; reliable than the References field we got from the
6861 ;; server.
6862 (save-excursion
6863 (set-buffer gnus-original-article-buffer)
6864 (nnheader-narrow-to-headers)
6865 (unless (setq ref (message-fetch-field "references"))
6866 (setq ref (message-fetch-field "in-reply-to")))
6867 (widen))
6868 (setq ref
6869 ;; It's not the current article, so we take a bet on
6870 ;; the value we got from the server.
6871 (mail-header-references header)))
6872 (if (and ref
6873 (not (equal ref "")))
6874 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
6875 (gnus-message 1 "Couldn't find parent"))
6876 (gnus-message 1 "No references in article %d"
6877 (gnus-summary-article-number))
6878 (setq error t))
6879 (decf n))
6880 (gnus-summary-position-point)
6881 n))
6882
6883(defun gnus-summary-refer-references ()
6884 "Fetch all articles mentioned in the References header.
6748645f 6885Return the number of articles fetched."
eec82323 6886 (interactive)
eec82323
LMI		 6887 (let ((ref (mail-header-references (gnus-summary-article-header)))
6888 (current (gnus-summary-article-number))
6889 (n 0))
6890 (if (or (not ref)
6891 (equal ref ""))
6892 (error "No References in the current article")
6893 ;; For each Message-ID in the References header...
6894 (while (string-match "<[^>]*>" ref)
6895 (incf n)
6896 ;; ... fetch that article.
6897 (gnus-summary-refer-article
6898 (prog1 (match-string 0 ref)
6899 (setq ref (substring ref (match-end 0))))))
6900 (gnus-summary-goto-subject current)
6901 (gnus-summary-position-point)
6902 n)))
6903
6748645f
LMI		 6904(defun gnus-summary-refer-thread (&optional limit)
6905 "Fetch all articles in the current thread.
6906If LIMIT (the numerical prefix), fetch that many old headers instead
6907of what's specified by the `gnus-refer-thread-limit' variable."
6908 (interactive "P")
6909 (let ((id (mail-header-id (gnus-summary-article-header)))
6910 (limit (if limit (prefix-numeric-value limit)
6911 gnus-refer-thread-limit)))
6912 ;; We want to fetch LIMIT *old* headers, but we also have to
6913 ;; re-fetch all the headers in the current buffer, because many of
6914 ;; them may be undisplayed. So we adjust LIMIT.
6915 (when (numberp limit)
6916 (incf limit (- gnus-newsgroup-end gnus-newsgroup-begin)))
6917 (unless (eq gnus-fetch-old-headers 'invisible)
6918 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
6919 ;; Retrieve the headers and read them in.
6920 (if (eq (gnus-retrieve-headers
6921 (list gnus-newsgroup-end) gnus-newsgroup-name limit)
6922 'nov)
6923 (gnus-build-all-threads)
6924 (error "Can't fetch thread from backends that don't support NOV"))
6925 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
6926 (gnus-summary-limit-include-thread id)))
6927
16409b0b
GM		 6928(defun gnus-summary-refer-article (message-id)
6929 "Fetch an article specified by MESSAGE-ID."
6930 (interactive "sMessage-ID: ")
eec82323
LMI		 6931 (when (and (stringp message-id)
6932 (not (zerop (length message-id))))
6933 ;; Construct the correct Message-ID if necessary.
6934 ;; Suggested by tale@pawl.rpi.edu.
6935 (unless (string-match "^<" message-id)
6936 (setq message-id (concat "<" message-id)))
6937 (unless (string-match ">$" message-id)
6938 (setq message-id (concat message-id ">")))
6939 (let* ((header (gnus-id-to-header message-id))
6940 (sparse (and header
6941 (gnus-summary-article-sparse-p
a8151ef7
LMI		 6942 (mail-header-number header))
6943 (memq (mail-header-number header)
16409b0b
GM		 6944 gnus-newsgroup-limit)))
6945 number)
6748645f
LMI		 6946 (cond
6947 ;; If the article is present in the buffer we just go to it.
6948 ((and header
6949 (or (not (gnus-summary-article-sparse-p
6950 (mail-header-number header)))
6951 sparse))
6952 (prog1
6953 (gnus-summary-goto-article
6954 (mail-header-number header) nil t)
6955 (when sparse
6956 (gnus-summary-update-article (mail-header-number header)))))
6957 (t
16409b0b
GM		 6958 ;; We fetch the article.
6959 (catch 'found
6960 (dolist (gnus-override-method (gnus-refer-article-methods))
6961 (gnus-check-server gnus-override-method)
6962 ;; Fetch the header, and display the article.
6963 (when (setq number (gnus-summary-insert-subject message-id))
eec82323 6964 (gnus-summary-select-article nil nil nil number)
16409b0b
GM		 6965 (throw 'found t)))
6966 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
6967
6968(defun gnus-refer-article-methods ()
6969 "Return a list of referrable methods."
6970 (cond
6971 ;; No method, so we default to current and native.
6972 ((null gnus-refer-article-method)
6973 (list gnus-current-select-method gnus-select-method))
6974 ;; Current.
6975 ((eq 'current gnus-refer-article-method)
6976 (list gnus-current-select-method))
6977 ;; List of select methods.
d4dfaa19
DL		 6978 ((not (and (symbolp (car gnus-refer-article-method))
6979 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM		 6980 (let (out)
6981 (dolist (method gnus-refer-article-method)
6982 (push (if (eq 'current method)
6983 gnus-current-select-method
6984 method)
6985 out))
6986 (nreverse out)))
6987 ;; One single select method.
6988 (t
6989 (list gnus-refer-article-method))))
6748645f
LMI		 6990
6991(defun gnus-summary-edit-parameters ()
6992 "Edit the group parameters of the current group."
6993 (interactive)
6994 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 6995
16409b0b
GM		 6996(defun gnus-summary-customize-parameters ()
6997 "Customize the group parameters of the current group."
6998 (interactive)
6999 (gnus-group-customize gnus-newsgroup-name))
7000
eec82323
LMI		 7001(defun gnus-summary-enter-digest-group (&optional force)
7002 "Enter an nndoc group based on the current article.
7003If FORCE, force a digest interpretation. If not, try
7004to guess what the document format is."
7005 (interactive "P")
eec82323
LMI		 7006 (let ((conf gnus-current-window-configuration))
7007 (save-excursion
7008 (gnus-summary-select-article))
7009 (setq gnus-current-window-configuration conf)
7010 (let* ((name (format "%s-%d"
7011 (gnus-group-prefixed-name
7012 gnus-newsgroup-name (list 'nndoc ""))
7013 (save-excursion
7014 (set-buffer gnus-summary-buffer)
7015 gnus-current-article)))
7016 (ogroup gnus-newsgroup-name)
7017 (params (append (gnus-info-params (gnus-get-info ogroup))
7018 (list (cons 'to-group ogroup))
7019 (list (cons 'save-article-group ogroup))))
7020 (case-fold-search t)
7021 (buf (current-buffer))
16409b0b 7022 dig to-address)
eec82323 7023 (save-excursion
16409b0b
GM		 7024 (set-buffer gnus-original-article-buffer)
7025 ;; Have the digest group inherit the main mail address of
7026 ;; the parent article.
7027 (when (setq to-address (or (message-fetch-field "reply-to")
7028 (message-fetch-field "from")))
d4dfaa19
DL		 7029 (setq params (append
7030 (list (cons 'to-address
7031 (funcall gnus-decode-encoded-word-function
7032 to-address))))))
eec82323
LMI		 7033 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
7034 (insert-buffer-substring gnus-original-article-buffer)
7035 ;; Remove lines that may lead nndoc to misinterpret the
7036 ;; document type.
7037 (narrow-to-region
7038 (goto-char (point-min))
7039 (or (search-forward "\n\n" nil t) (point)))
7040 (goto-char (point-min))
16409b0b 7041 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI		 7042 (widen))
7043 (unwind-protect
16409b0b
GM		 7044 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
7045 (gnus-newsgroup-ephemeral-ignored-charsets
7046 gnus-newsgroup-ignored-charsets))
7047 (gnus-group-read-ephemeral-group
7048 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
7049 (nndoc-article-type
7050 ,(if force 'mbox 'guess))) t))
7051 ;; Make all postings to this group go to the parent group.
eec82323
LMI		 7052 (nconc (gnus-info-params (gnus-get-info name))
7053 params)
7054 ;; Couldn't select this doc group.
7055 (switch-to-buffer buf)
7056 (gnus-set-global-variables)
7057 (gnus-configure-windows 'summary)
7058 (gnus-message 3 "Article couldn't be entered?"))
7059 (kill-buffer dig)))))
7060
7061(defun gnus-summary-read-document (n)
7062 "Open a new group based on the current article(s).
7063This will allow you to read digests and other similar
7064documents as newsgroups.
7065Obeys the standard process/prefix convention."
7066 (interactive "P")
7067 (let* ((articles (gnus-summary-work-articles n))
7068 (ogroup gnus-newsgroup-name)
7069 (params (append (gnus-info-params (gnus-get-info ogroup))
7070 (list (cons 'to-group ogroup))))
7071 article group egroup groups vgroup)
7072 (while (setq article (pop articles))
7073 (setq group (format "%s-%d" gnus-newsgroup-name article))
7074 (gnus-summary-remove-process-mark article)
7075 (when (gnus-summary-display-article article)
7076 (save-excursion
16409b0b 7077 (with-temp-buffer
eec82323
LMI		 7078 (insert-buffer-substring gnus-original-article-buffer)
7079 ;; Remove some headers that may lead nndoc to make
7080 ;; the wrong guess.
7081 (message-narrow-to-head)
7082 (goto-char (point-min))
7083 (delete-matching-lines "^\\(Path\\):\\|^From ")
7084 (widen)
7085 (if (setq egroup
7086 (gnus-group-read-ephemeral-group
7087 group `(nndoc ,group (nndoc-address ,(current-buffer))
7088 (nndoc-article-type guess))
7089 t nil t))
7090 (progn
7091 ;; Make all postings to this group go to the parent group.
7092 (nconc (gnus-info-params (gnus-get-info egroup))
7093 params)
7094 (push egroup groups))
7095 ;; Couldn't select this doc group.
7096 (gnus-error 3 "Article couldn't be entered"))))))
7097 ;; Now we have selected all the documents.
7098 (cond
7099 ((not groups)
7100 (error "None of the articles could be interpreted as documents"))
7101 ((gnus-group-read-ephemeral-group
7102 (setq vgroup (format
7103 "nnvirtual:%s-%s" gnus-newsgroup-name
7104 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
7105 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
7106 t
7107 (cons (current-buffer) 'summary)))
7108 (t
7109 (error "Couldn't select virtual nndoc group")))))
7110
7111(defun gnus-summary-isearch-article (&optional regexp-p)
7112 "Do incremental search forward on the current article.
7113If REGEXP-P (the prefix) is non-nil, do regexp isearch."
7114 (interactive "P")
eec82323
LMI		 7115 (gnus-summary-select-article)
7116 (gnus-configure-windows 'article)
7117 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI		 7118 (save-restriction
7119 (widen)
7120 (isearch-forward regexp-p))))
eec82323
LMI		 7121
7122(defun gnus-summary-search-article-forward (regexp &optional backward)
7123 "Search for an article containing REGEXP forward.
7124If BACKWARD, search backward instead."
7125 (interactive
7126 (list (read-string
7127 (format "Search article %s (regexp%s): "
7128 (if current-prefix-arg "backward" "forward")
7129 (if gnus-last-search-regexp
7130 (concat ", default " gnus-last-search-regexp)
7131 "")))
7132 current-prefix-arg))
eec82323
LMI		 7133 (if (string-equal regexp "")
7134 (setq regexp (or gnus-last-search-regexp ""))
7135 (setq gnus-last-search-regexp regexp))
7136 (if (gnus-summary-search-article regexp backward)
7137 (gnus-summary-show-thread)
7138 (error "Search failed: \"%s\"" regexp)))
7139
7140(defun gnus-summary-search-article-backward (regexp)
7141 "Search for an article containing REGEXP backward."
7142 (interactive
7143 (list (read-string
7144 (format "Search article backward (regexp%s): "
7145 (if gnus-last-search-regexp
7146 (concat ", default " gnus-last-search-regexp)
7147 "")))))
7148 (gnus-summary-search-article-forward regexp 'backward))
7149
7150(defun gnus-summary-search-article (regexp &optional backward)
7151 "Search for an article containing REGEXP.
7152Optional argument BACKWARD means do search for backward.
7153`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI		 7154 ;; We have to require this here to make sure that the following
7155 ;; dynamic binding isn't shadowed by autoloading.
7156 (require 'gnus-async)
16409b0b 7157 (require 'gnus-art)
eec82323 7158 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 7159 (gnus-article-prepare-hook nil)
eec82323
LMI		 7160 (gnus-mark-article-hook nil) ;Inhibit marking as read.
7161 (gnus-use-article-prefetch nil)
7162 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 7163 (gnus-use-trees nil) ;Inhibit updating tree buffer.
eec82323 7164 (sum (current-buffer))
16409b0b 7165 (gnus-display-mime-function nil)
eec82323
LMI		 7166 (found nil)
7167 point)
7168 (gnus-save-hidden-threads
7169 (gnus-summary-select-article)
7170 (set-buffer gnus-article-buffer)
16409b0b 7171 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI		 7172 (when backward
7173 (forward-line -1))
7174 (while (not found)
7175 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
7176 (if (if backward
7177 (re-search-backward regexp nil t)
7178 (re-search-forward regexp nil t))
7179 ;; We found the regexp.
7180 (progn
7181 (setq found 'found)
7182 (beginning-of-line)
7183 (set-window-start
7184 (get-buffer-window (current-buffer))
7185 (point))
7186 (forward-line 1)
16409b0b
GM		 7187 (set-window-point
7188 (get-buffer-window (current-buffer))
7189 (point))
eec82323
LMI		 7190 (set-buffer sum)
7191 (setq point (point)))
7192 ;; We didn't find it, so we go to the next article.
7193 (set-buffer sum)
7194 (setq found 'not)
7195 (while (eq found 'not)
7196 (if (not (if backward (gnus-summary-find-prev)
7197 (gnus-summary-find-next)))
7198 ;; No more articles.
7199 (setq found t)
7200 ;; Select the next article and adjust point.
7201 (unless (gnus-summary-article-sparse-p
7202 (gnus-summary-article-number))
7203 (setq found nil)
7204 (gnus-summary-select-article)
7205 (set-buffer gnus-article-buffer)
7206 (widen)
7207 (goto-char (if backward (point-max) (point-min))))))))
7208 (gnus-message 7 ""))
7209 ;; Return whether we found the regexp.
7210 (when (eq found 'found)
7211 (goto-char point)
7212 (gnus-summary-show-thread)
7213 (gnus-summary-goto-subject gnus-current-article)
7214 (gnus-summary-position-point)
7215 t)))
7216
7217(defun gnus-summary-find-matching (header regexp &optional backward unread
7218 not-case-fold)
7219 "Return a list of all articles that match REGEXP on HEADER.
7220The search stars on the current article and goes forwards unless
7221BACKWARD is non-nil. If BACKWARD is `all', do all articles.
7222If UNREAD is non-nil, only unread articles will
7223be taken into consideration. If NOT-CASE-FOLD, case won't be folded
7224in the comparisons."
7225 (let ((data (if (eq backward 'all) gnus-newsgroup-data
7226 (gnus-data-find-list
7227 (gnus-summary-article-number) (gnus-data-list backward))))
eec82323 7228 (case-fold-search (not not-case-fold))
16409b0b
GM		 7229 articles d func)
7230 (if (consp header)
7231 (if (eq (car header) 'extra)
7232 (setq func
7233 `(lambda (h)
7234 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
7235 "")))
7236 (error "%s is an invalid header" header))
7237 (unless (fboundp (intern (concat "mail-header-" header)))
7238 (error "%s is not a valid header" header))
7239 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
eec82323
LMI		 7240 (while data
7241 (setq d (car data))
7242 (and (or (not unread) ; We want all articles...
7243 (gnus-data-unread-p d)) ; Or just unreads.
7244 (vectorp (gnus-data-header d)) ; It's not a pseudo.
7245 (string-match regexp (funcall func (gnus-data-header d))) ; Match.
7246 (push (gnus-data-number d) articles)) ; Success!
7247 (setq data (cdr data)))
7248 (nreverse articles)))
7249
7250(defun gnus-summary-execute-command (header regexp command &optional backward)
7251 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
7252If HEADER is an empty string (or nil), the match is done on the entire
7253article. If BACKWARD (the prefix) is non-nil, search backward instead."
7254 (interactive
7255 (list (let ((completion-ignore-case t))
7256 (completing-read
7257 "Header name: "
7258 (mapcar (lambda (string) (list string))
7259 '("Number" "Subject" "From" "Lines" "Date"
7260 "Message-ID" "Xref" "References" "Body"))
7261 nil 'require-match))
7262 (read-string "Regexp: ")
7263 (read-key-sequence "Command: ")
7264 current-prefix-arg))
7265 (when (equal header "Body")
7266 (setq header ""))
eec82323
LMI		 7267 ;; Hidden thread subtrees must be searched as well.
7268 (gnus-summary-show-all-threads)
7269 ;; We don't want to change current point nor window configuration.
7270 (save-excursion
7271 (save-window-excursion
7272 (gnus-message 6 "Executing %s..." (key-description command))
7273 ;; We'd like to execute COMMAND interactively so as to give arguments.
7274 (gnus-execute header regexp
7275 `(call-interactively ',(key-binding command))
7276 backward)
7277 (gnus-message 6 "Executing %s...done" (key-description command)))))
7278
7279(defun gnus-summary-beginning-of-article ()
7280 "Scroll the article back to the beginning."
7281 (interactive)
eec82323
LMI		 7282 (gnus-summary-select-article)
7283 (gnus-configure-windows 'article)
7284 (gnus-eval-in-buffer-window gnus-article-buffer
7285 (widen)
7286 (goto-char (point-min))
7287 (when gnus-page-broken
7288 (gnus-narrow-to-page))))
7289
7290(defun gnus-summary-end-of-article ()
7291 "Scroll to the end of the article."
7292 (interactive)
eec82323
LMI		 7293 (gnus-summary-select-article)
7294 (gnus-configure-windows 'article)
7295 (gnus-eval-in-buffer-window gnus-article-buffer
7296 (widen)
7297 (goto-char (point-max))
7298 (recenter -3)
7299 (when gnus-page-broken
7300 (gnus-narrow-to-page))))
7301
6748645f
LMI		 7302(defun gnus-summary-print-article (&optional filename n)
7303 "Generate and print a PostScript image of the N next (mail) articles.
7304
7305If N is negative, print the N previous articles. If N is nil and articles
7306have been marked with the process mark, print these instead.
eec82323 7307
16409b0b 7308If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI		 7309printer. If FILENAME is a string, save the PostScript image in a file with
7310that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 7311to save in."
676a7cc9 7312 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI		 7313 (dolist (article (gnus-summary-work-articles n))
7314 (gnus-summary-select-article nil nil 'pseudo article)
7315 (gnus-eval-in-buffer-window gnus-article-buffer
7316 (let ((buffer (generate-new-buffer " *print*")))
7317 (unwind-protect
7318 (progn
7319 (copy-to-buffer buffer (point-min) (point-max))
7320 (set-buffer buffer)
7321 (gnus-article-delete-invisible-text)
7322 (let ((ps-left-header
7323 (list
7324 (concat "("
7325 (mail-header-subject gnus-current-headers) ")")
7326 (concat "("
7327 (mail-header-from gnus-current-headers) ")")))
7328 (ps-right-header
7329 (list
7330 "/pagenumberstring load"
7331 (concat "("
7332 (mail-header-date gnus-current-headers) ")"))))
7333 (gnus-run-hooks 'gnus-ps-print-hook)
7334 (save-excursion
676a7cc9
SZ		 7335 (ps-spool-buffer-with-faces))))
7336 (kill-buffer buffer))))
7337 (gnus-summary-remove-process-mark article))
7338 (ps-despool filename))
eec82323
LMI		 7339
7340(defun gnus-summary-show-article (&optional arg)
7341 "Force re-fetching of the current article.
16409b0b
GM		 7342If ARG (the prefix) is a number, show the article with the charset
7343defined in `gnus-summary-show-article-charset-alist', or the charset
7344inputed.
7345If ARG (the prefix) is non-nil and not a number, show the raw article
7346without any article massaging functions being run."
eec82323 7347 (interactive "P")
16409b0b
GM		 7348 (cond
7349 ((numberp arg)
7350 (let ((gnus-newsgroup-charset
7351 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
7352 (read-coding-system "Charset: ")))
7353 (gnus-newsgroup-ignored-charsets 'gnus-all))
7354 (gnus-summary-select-article nil 'force)))
7355 ((not arg)
7356 ;; Select the article the normal way.
7357 (gnus-summary-select-article nil 'force))
7358 (t
7359 ;; We have to require this here to make sure that the following
7360 ;; dynamic binding isn't shadowed by autoloading.
7361 (require 'gnus-async)
7362 (require 'gnus-art)
eec82323
LMI		 7363 ;; Bind the article treatment functions to nil.
7364 (let ((gnus-have-all-headers t)
eec82323 7365 gnus-article-prepare-hook
16409b0b
GM		 7366 gnus-article-decode-hook
7367 gnus-display-mime-function
7368 gnus-break-pages)
7369 ;; Destroy any MIME parts.
7370 (when (gnus-buffer-live-p gnus-article-buffer)
7371 (save-excursion
7372 (set-buffer gnus-article-buffer)
7373 (mm-destroy-parts gnus-article-mime-handles)
7374 ;; Set it to nil for safety reason.
7375 (setq gnus-article-mime-handle-alist nil)
7376 (setq gnus-article-mime-handles nil)))
7377 (gnus-summary-select-article nil 'force))))
eec82323
LMI		 7378 (gnus-summary-goto-subject gnus-current-article)
7379 (gnus-summary-position-point))
7380
7381(defun gnus-summary-verbose-headers (&optional arg)
7382 "Toggle permanent full header display.
7383If ARG is a positive number, turn header display on.
7384If ARG is a negative number, turn header display off."
7385 (interactive "P")
eec82323
LMI		 7386 (setq gnus-show-all-headers
7387 (cond ((or (not (numberp arg))
7388 (zerop arg))
7389 (not gnus-show-all-headers))
7390 ((natnump arg)
7391 t)))
7392 (gnus-summary-show-article))
7393
7394(defun gnus-summary-toggle-header (&optional arg)
7395 "Show the headers if they are hidden, or hide them if they are shown.
7396If ARG is a positive number, show the entire header.
7397If ARG is a negative number, hide the unwanted header lines."
7398 (interactive "P")
eec82323
LMI		 7399 (save-excursion
7400 (set-buffer gnus-article-buffer)
16409b0b
GM		 7401 (save-restriction
7402 (let* ((buffer-read-only nil)
7403 (inhibit-point-motion-hooks t)
7404 hidden e)
7405 (setq hidden
7406 (if (numberp arg)
7407 (>= arg 0)
7408 (save-restriction
7409 (article-narrow-to-head)
7410 (gnus-article-hidden-text-p 'headers))))
7411 (goto-char (point-min))
7412 (when (search-forward "\n\n" nil t)
7413 (delete-region (point-min) (1- (point))))
eec82323 7414 (goto-char (point-min))
16409b0b
GM		 7415 (save-excursion
7416 (set-buffer gnus-original-article-buffer)
7417 (goto-char (point-min))
7418 (setq e (1- (or (search-forward "\n\n" nil t) (point-max)))))
7419 (insert-buffer-substring gnus-original-article-buffer 1 e)
7420 (save-restriction
7421 (narrow-to-region (point-min) (point))
7422 (article-decode-encoded-words)
7423 (if hidden
7424 (let ((gnus-treat-hide-headers nil)
7425 (gnus-treat-hide-boring-headers nil))
7426 (setq gnus-article-wash-types
7427 (delq 'headers gnus-article-wash-types))
7428 (gnus-treat-article 'head))
7429 (gnus-treat-article 'head)))
7430 (gnus-set-mode-line 'article)))))
eec82323
LMI		 7431
7432(defun gnus-summary-show-all-headers ()
7433 "Make all header lines visible."
7434 (interactive)
eec82323
LMI		 7435 (gnus-article-show-all-headers))
7436
eec82323
LMI		 7437(defun gnus-summary-caesar-message (&optional arg)
7438 "Caesar rotate the current article by 13.
7439The numerical prefix specifies how many places to rotate each letter
7440forward."
7441 (interactive "P")
eec82323
LMI		 7442 (gnus-summary-select-article)
7443 (let ((mail-header-separator ""))
7444 (gnus-eval-in-buffer-window gnus-article-buffer
7445 (save-restriction
7446 (widen)
7447 (let ((start (window-start))
7448 buffer-read-only)
7449 (message-caesar-buffer-body arg)
7450 (set-window-start (get-buffer-window (current-buffer)) start))))))
7451
7452(defun gnus-summary-stop-page-breaking ()
7453 "Stop page breaking in the current article."
7454 (interactive)
eec82323
LMI		 7455 (gnus-summary-select-article)
7456 (gnus-eval-in-buffer-window gnus-article-buffer
7457 (widen)
7458 (when (gnus-visual-p 'page-marker)
7459 (let ((buffer-read-only nil))
7460 (gnus-remove-text-with-property 'gnus-prev)
6748645f
LMI		 7461 (gnus-remove-text-with-property 'gnus-next))
7462 (setq gnus-page-broken nil))))
eec82323
LMI		 7463
7464(defun gnus-summary-move-article (&optional n to-newsgroup
7465 select-method action)
7466 "Move the current article to a different newsgroup.
7467If N is a positive number, move the N next articles.
7468If N is a negative number, move the N previous articles.
7469If N is nil and any articles have been marked with the process mark,
7470move those articles instead.
7471If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
7472If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
7473re-spool using this method.
7474
7475For this function to work, both the current newsgroup and the
7476newsgroup that you want to move to have to support the `request-move'
16409b0b
GM		 7477and `request-accept' functions.
7478
7479ACTION can be either `move' (the default), `crosspost' or `copy'."
eec82323
LMI		 7480 (interactive "P")
7481 (unless action
7482 (setq action 'move))
eec82323
LMI		 7483 ;; Disable marking as read.
7484 (let (gnus-mark-article-hook)
7485 (save-window-excursion
7486 (gnus-summary-select-article)))
7487 ;; Check whether the source group supports the required functions.
7488 (cond ((and (eq action 'move)
7489 (not (gnus-check-backend-function
7490 'request-move-article gnus-newsgroup-name)))
7491 (error "The current group does not support article moving"))
7492 ((and (eq action 'crosspost)
7493 (not (gnus-check-backend-function
7494 'request-replace-article gnus-newsgroup-name)))
7495 (error "The current group does not support article editing")))
7496 (let ((articles (gnus-summary-work-articles n))
16409b0b
GM		 7497 (prefix (if (gnus-check-backend-function
7498 'request-move-article gnus-newsgroup-name)
7499 (gnus-group-real-prefix gnus-newsgroup-name)
7500 ""))
eec82323
LMI		 7501 (names '((move "Move" "Moving")
7502 (copy "Copy" "Copying")
7503 (crosspost "Crosspost" "Crossposting")))
7504 (copy-buf (save-excursion
7505 (nnheader-set-temp-buffer " *copy article*")))
7506 art-group to-method new-xref article to-groups)
7507 (unless (assq action names)
7508 (error "Unknown action %s" action))
7509 ;; Read the newsgroup name.
7510 (when (and (not to-newsgroup)
7511 (not select-method))
7512 (setq to-newsgroup
7513 (gnus-read-move-group-name
7514 (cadr (assq action names))
7515 (symbol-value (intern (format "gnus-current-%s-group" action)))
7516 articles prefix))
7517 (set (intern (format "gnus-current-%s-group" action)) to-newsgroup))
7518 (setq to-method (or select-method
16409b0b
GM		 7519 (gnus-server-to-method
7520 (gnus-group-method to-newsgroup))))
eec82323
LMI		 7521 ;; Check the method we are to move this article to...
7522 (unless (gnus-check-backend-function
7523 'request-accept-article (car to-method))
7524 (error "%s does not support article copying" (car to-method)))
7525 (unless (gnus-check-server to-method)
7526 (error "Can't open server %s" (car to-method)))
7527 (gnus-message 6 "%s to %s: %s..."
7528 (caddr (assq action names))
7529 (or (car select-method) to-newsgroup) articles)
7530 (while articles
7531 (setq article (pop articles))
7532 (setq
7533 art-group
7534 (cond
7535 ;; Move the article.
7536 ((eq action 'move)
a8151ef7
LMI		 7537 ;; Remove this article from future suppression.
7538 (gnus-dup-unsuppress-article article)
eec82323
LMI		 7539 (gnus-request-move-article
7540 article ; Article to move
7541 gnus-newsgroup-name ; From newsgroup
7542 (nth 1 (gnus-find-method-for-group
7543 gnus-newsgroup-name)) ; Server
7544 (list 'gnus-request-accept-article
7545 to-newsgroup (list 'quote select-method)
16409b0b 7546 (not articles) t) ; Accept form
eec82323
LMI		 7547 (not articles))) ; Only save nov last time
7548 ;; Copy the article.
7549 ((eq action 'copy)
7550 (save-excursion
7551 (set-buffer copy-buf)
6748645f
LMI		 7552 (when (gnus-request-article-this-buffer article gnus-newsgroup-name)
7553 (gnus-request-accept-article
16409b0b 7554 to-newsgroup select-method (not articles) t))))
eec82323
LMI		 7555 ;; Crosspost the article.
7556 ((eq action 'crosspost)
7557 (let ((xref (message-tokenize-header
7558 (mail-header-xref (gnus-summary-article-header article))
7559 " ")))
7560 (setq new-xref (concat (gnus-group-real-name gnus-newsgroup-name)
7561 ":" article))
7562 (unless xref
7563 (setq xref (list (system-name))))
7564 (setq new-xref
7565 (concat
7566 (mapconcat 'identity
7567 (delete "Xref:" (delete new-xref xref))
7568 " ")
7569 " " new-xref))
7570 (save-excursion
7571 (set-buffer copy-buf)
7572 ;; First put the article in the destination group.
7573 (gnus-request-article-this-buffer article gnus-newsgroup-name)
7574 (when (consp (setq art-group
7575 (gnus-request-accept-article
7576 to-newsgroup select-method (not articles))))
7577 (setq new-xref (concat new-xref " " (car art-group)
7578 ":" (cdr art-group)))
7579 ;; Now we have the new Xrefs header, so we insert
7580 ;; it and replace the new article.
7581 (nnheader-replace-header "Xref" new-xref)
7582 (gnus-request-replace-article
7583 (cdr art-group) to-newsgroup (current-buffer))
7584 art-group))))))
7585 (cond
7586 ((not art-group)
16409b0b
GM		 7587 (gnus-message 1 "Couldn't %s article %s: %s"
7588 (cadr (assq action names)) article
7589 (nnheader-get-report (car to-method))))
7590 ((eq art-group 'junk)
7591 (when (eq action 'move)
7592 (gnus-summary-mark-article article gnus-canceled-mark)
7593 (gnus-message 4 "Deleted article %s" article)))
eec82323 7594 (t
6748645f
LMI		 7595 (let* ((pto-group (gnus-group-prefixed-name
7596 (car art-group) to-method))
7597 (entry
7598 (gnus-gethash pto-group gnus-newsrc-hashtb))
eec82323 7599 (info (nth 2 entry))
16409b0b
GM		 7600 (to-group (gnus-info-group info))
7601 to-marks)
eec82323
LMI		 7602 ;; Update the group that has been moved to.
7603 (when (and info
7604 (memq action '(move copy)))
7605 (unless (member to-group to-groups)
7606 (push to-group to-groups))
7607
7608 (unless (memq article gnus-newsgroup-unreads)
16409b0b 7609 (push 'read to-marks)
eec82323
LMI		 7610 (gnus-info-set-read
7611 info (gnus-add-to-range (gnus-info-read info)
7612 (list (cdr art-group)))))
7613
16409b0b 7614 ;; See whether the article is to be put in the cache.
eec82323
LMI		 7615 (let ((marks gnus-article-mark-lists)
7616 (to-article (cdr art-group)))
7617
16409b0b
GM		 7618 ;; Enter the article into the cache in the new group,
7619 ;; if that is required.
eec82323
LMI		 7620 (when gnus-use-cache
7621 (gnus-cache-possibly-enter-article
7622 to-group to-article
eec82323
LMI		 7623 (memq article gnus-newsgroup-marked)
7624 (memq article gnus-newsgroup-dormant)
7625 (memq article gnus-newsgroup-unreads)))
7626
16409b0b
GM		 7627 (when gnus-preserve-marks
7628 ;; Copy any marks over to the new group.
7629 (when (and (equal to-group gnus-newsgroup-name)
7630 (not (memq article gnus-newsgroup-unreads)))
7631 ;; Mark this article as read in this group.
7632 (push (cons to-article gnus-read-mark) gnus-newsgroup-reads)
7633 (setcdr (gnus-active to-group) to-article)
7634 (setcdr gnus-newsgroup-active to-article))
7635
7636 (while marks
7637 (when (memq article (symbol-value
7638 (intern (format "gnus-newsgroup-%s"
7639 (caar marks)))))
7640 (push (cdar marks) to-marks)
7641 ;; If the other group is the same as this group,
7642 ;; then we have to add the mark to the list.
7643 (when (equal to-group gnus-newsgroup-name)
7644 (set (intern (format "gnus-newsgroup-%s" (caar marks)))
7645 (cons to-article
7646 (symbol-value
7647 (intern (format "gnus-newsgroup-%s"
7648 (caar marks)))))))
7649 ;; Copy the marks to other group.
7650 (gnus-add-marked-articles
7651 to-group (cdar marks) (list to-article) info))
7652 (setq marks (cdr marks)))
7653
7654 (gnus-request-set-mark to-group (list (list (list to-article)
7655 'set
7656 to-marks))))
eec82323
LMI		 7657
7658 (gnus-dribble-enter
7659 (concat "(gnus-group-set-info '"
7660 (gnus-prin1-to-string (gnus-get-info to-group))
7661 ")"))))
7662
7663 ;; Update the Xref header in this article to point to
7664 ;; the new crossposted article we have just created.
7665 (when (eq action 'crosspost)
7666 (save-excursion
7667 (set-buffer copy-buf)
7668 (gnus-request-article-this-buffer article gnus-newsgroup-name)
7669 (nnheader-replace-header "Xref" new-xref)
7670 (gnus-request-replace-article
7671 article gnus-newsgroup-name (current-buffer)))))
7672
6748645f
LMI		 7673 ;;;!!!Why is this necessary?
7674 (set-buffer gnus-summary-buffer)
7675
eec82323
LMI		 7676 (gnus-summary-goto-subject article)
7677 (when (eq action 'move)
7678 (gnus-summary-mark-article article gnus-canceled-mark))))
7679 (gnus-summary-remove-process-mark article))
7680 ;; Re-activate all groups that have been moved to.
7681 (while to-groups
7682 (save-excursion
7683 (set-buffer gnus-group-buffer)
7684 (when (gnus-group-goto-group (car to-groups) t)
a8151ef7 7685 (gnus-group-get-new-news-this-group 1 t))
eec82323
LMI		 7686 (pop to-groups)))
7687
7688 (gnus-kill-buffer copy-buf)
7689 (gnus-summary-position-point)
7690 (gnus-set-mode-line 'summary)))
7691
7692(defun gnus-summary-copy-article (&optional n to-newsgroup select-method)
7693 "Move the current article to a different newsgroup.
7694If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
7695If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
7696re-spool using this method."
7697 (interactive "P")
7698 (gnus-summary-move-article n to-newsgroup select-method 'copy))
7699
7700(defun gnus-summary-crosspost-article (&optional n)
7701 "Crosspost the current article to some other group."
7702 (interactive "P")
7703 (gnus-summary-move-article n nil nil 'crosspost))
7704
7705(defcustom gnus-summary-respool-default-method nil
7706 "Default method for respooling an article.
7707If nil, use to the current newsgroup method."
04ad70ac
KH		 7708 :type '(choice (gnus-select-method :value (nnml ""))
7709 (const nil))
eec82323
LMI		 7710 :group 'gnus-summary-mail)
7711
7712(defun gnus-summary-respool-article (&optional n method)
7713 "Respool the current article.
7714The article will be squeezed through the mail spooling process again,
7715which means that it will be put in some mail newsgroup or other
7716depending on `nnmail-split-methods'.
7717If N is a positive number, respool the N next articles.
7718If N is a negative number, respool the N previous articles.
7719If N is nil and any articles have been marked with the process mark,
7720respool those articles instead.
7721
7722Respooling can be done both from mail groups and \"real\" newsgroups.
7723In the former case, the articles in question will be moved from the
7724current group into whatever groups they are destined to. In the
7725latter case, they will be copied into the relevant groups."
7726 (interactive
7727 (list current-prefix-arg
7728 (let* ((methods (gnus-methods-using 'respool))
7729 (methname
7730 (symbol-name (or gnus-summary-respool-default-method
7731 (car (gnus-find-method-for-group
7732 gnus-newsgroup-name)))))
7733 (method
7734 (gnus-completing-read
7735 methname "What backend do you want to use when respooling?"
7736 methods nil t nil 'gnus-mail-method-history))
7737 ms)
7738 (cond
7739 ((zerop (length (setq ms (gnus-servers-using-backend
7740 (intern method)))))
7741 (list (intern method) ""))
7742 ((= 1 (length ms))
7743 (car ms))
7744 (t
7745 (let ((ms-alist (mapcar (lambda (m) (cons (cadr m) m)) ms)))
7746 (cdr (assoc (completing-read "Server name: " ms-alist nil t)
7747 ms-alist))))))))
eec82323
LMI		 7748 (unless method
7749 (error "No method given for respooling"))
7750 (if (assoc (symbol-name
7751 (car (gnus-find-method-for-group gnus-newsgroup-name)))
7752 (gnus-methods-using 'respool))
7753 (gnus-summary-move-article n nil method)
7754 (gnus-summary-copy-article n nil method)))
7755
7756(defun gnus-summary-import-article (file)
6748645f 7757 "Import an arbitrary file into a mail newsgroup."
eec82323 7758 (interactive "fImport file: ")
eec82323
LMI		 7759 (let ((group gnus-newsgroup-name)
7760 (now (current-time))
7761 atts lines)
7762 (unless (gnus-check-backend-function 'request-accept-article group)
7763 (error "%s does not support article importing" group))
7764 (or (file-readable-p file)
7765 (not (file-regular-p file))
7766 (error "Can't read %s" file))
7767 (save-excursion
6748645f 7768 (set-buffer (gnus-get-buffer-create " *import file*"))
eec82323 7769 (erase-buffer)
16409b0b 7770 (nnheader-insert-file-contents file)
eec82323
LMI		 7771 (goto-char (point-min))
7772 (unless (nnheader-article-p)
7773 ;; This doesn't look like an article, so we fudge some headers.
7774 (setq atts (file-attributes file)
7775 lines (count-lines (point-min) (point-max)))
7776 (insert "From: " (read-string "From: ") "\n"
7777 "Subject: " (read-string "Subject: ") "\n"
16409b0b 7778 "Date: " (message-make-date (nth 5 atts))
eec82323
LMI		 7779 "\n"
7780 "Message-ID: " (message-make-message-id) "\n"
7781 "Lines: " (int-to-string lines) "\n"
7782 "Chars: " (int-to-string (nth 7 atts)) "\n\n"))
7783 (gnus-request-accept-article group nil t)
7784 (kill-buffer (current-buffer)))))
7785
7786(defun gnus-summary-article-posted-p ()
16409b0b 7787 "Say whether the current (mail) article is available from news as well.
eec82323
LMI		 7788This will be the case if the article has both been mailed and posted."
7789 (interactive)
7790 (let ((id (mail-header-references (gnus-summary-article-header)))
16409b0b 7791 (gnus-override-method (car (gnus-refer-article-methods))))
eec82323
LMI		 7792 (if (gnus-request-head id "")
7793 (gnus-message 2 "The current message was found on %s"
7794 gnus-override-method)
7795 (gnus-message 2 "The current message couldn't be found on %s"
7796 gnus-override-method)
7797 nil)))
7798
7799(defun gnus-summary-expire-articles (&optional now)
7800 "Expire all articles that are marked as expirable in the current group."
7801 (interactive)
eec82323
LMI		 7802 (when (gnus-check-backend-function
7803 'request-expire-articles gnus-newsgroup-name)
7804 ;; This backend supports expiry.
7805 (let* ((total (gnus-group-total-expirable-p gnus-newsgroup-name))
7806 (expirable (if total
7807 (progn
7808 ;; We need to update the info for
7809 ;; this group for `gnus-list-of-read-articles'
7810 ;; to give us the right answer.
6748645f 7811 (gnus-run-hooks 'gnus-exit-group-hook)
eec82323
LMI		 7812 (gnus-summary-update-info)
7813 (gnus-list-of-read-articles gnus-newsgroup-name))
7814 (setq gnus-newsgroup-expirable
7815 (sort gnus-newsgroup-expirable '<))))
7816 (expiry-wait (if now 'immediate
7817 (gnus-group-find-parameter
7818 gnus-newsgroup-name 'expiry-wait)))
16409b0b
GM		 7819 (nnmail-expiry-target
7820 (or (gnus-group-find-parameter gnus-newsgroup-name 'expiry-target)
7821 nnmail-expiry-target))
eec82323
LMI		 7822 es)
7823 (when expirable
7824 ;; There are expirable articles in this group, so we run them
7825 ;; through the expiry process.
7826 (gnus-message 6 "Expiring articles...")
16409b0b
GM		 7827 (unless (gnus-check-group gnus-newsgroup-name)
7828 (error "Can't open server for %s" gnus-newsgroup-name))
eec82323 7829 ;; The list of articles that weren't expired is returned.
6748645f
LMI		 7830 (save-excursion
7831 (if expiry-wait
7832 (let ((nnmail-expiry-wait-function nil)
7833 (nnmail-expiry-wait expiry-wait))
7834 (setq es (gnus-request-expire-articles
7835 expirable gnus-newsgroup-name)))
7836 (setq es (gnus-request-expire-articles
7837 expirable gnus-newsgroup-name))))
eec82323
LMI		 7838 (unless total
7839 (setq gnus-newsgroup-expirable es))
7840 ;; We go through the old list of expirable, and mark all
7841 ;; really expired articles as nonexistent.
7842 (unless (eq es expirable) ;If nothing was expired, we don't mark.
7843 (let ((gnus-use-cache nil))
7844 (while expirable
7845 (unless (memq (car expirable) es)
7846 (when (gnus-data-find (car expirable))
7847 (gnus-summary-mark-article
7848 (car expirable) gnus-canceled-mark)))
7849 (setq expirable (cdr expirable)))))
7850 (gnus-message 6 "Expiring articles...done")))))
7851
7852(defun gnus-summary-expire-articles-now ()
7853 "Expunge all expirable articles in the current group.
7854This means that *all* articles that are marked as expirable will be
7855deleted forever, right now."
7856 (interactive)
eec82323
LMI		 7857 (or gnus-expert-user
7858 (gnus-yes-or-no-p
7859 "Are you really, really, really sure you want to delete all these messages? ")
7860 (error "Phew!"))
7861 (gnus-summary-expire-articles t))
7862
7863;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
7864(defun gnus-summary-delete-article (&optional n)
7865 "Delete the N next (mail) articles.
7866This command actually deletes articles. This is not a marking
7867command. The article will disappear forever from your life, never to
7868return.
7869If N is negative, delete backwards.
7870If N is nil and articles have been marked with the process mark,
7871delete these instead."
7872 (interactive "P")
eec82323
LMI		 7873 (unless (gnus-check-backend-function 'request-expire-articles
7874 gnus-newsgroup-name)
a8151ef7 7875 (error "The current newsgroup does not support article deletion"))
16409b0b
GM		 7876 (unless (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
7877 (error "Couldn't open server"))
eec82323 7878 ;; Compute the list of articles to delete.
6748645f 7879 (let ((articles (sort (copy-sequence (gnus-summary-work-articles n)) '<))
eec82323
LMI		 7880 not-deleted)
7881 (if (and gnus-novice-user
7882 (not (gnus-yes-or-no-p
7883 (format "Do you really want to delete %s forever? "
7884 (if (> (length articles) 1)
7885 (format "these %s articles" (length articles))
7886 "this article")))))
7887 ()
7888 ;; Delete the articles.
7889 (setq not-deleted (gnus-request-expire-articles
7890 articles gnus-newsgroup-name 'force))
7891 (while articles
7892 (gnus-summary-remove-process-mark (car articles))
7893 ;; The backend might not have been able to delete the article
7894 ;; after all.
7895 (unless (memq (car articles) not-deleted)
7896 (gnus-summary-mark-article (car articles) gnus-canceled-mark))
7897 (setq articles (cdr articles)))
7898 (when not-deleted
7899 (gnus-message 4 "Couldn't delete articles %s" not-deleted)))
7900 (gnus-summary-position-point)
7901 (gnus-set-mode-line 'summary)
7902 not-deleted))
7903
16409b0b 7904(defun gnus-summary-edit-article (&optional arg)
eec82323
LMI		 7905 "Edit the current article.
7906This will have permanent effect only in mail groups.
16409b0b
GM		 7907If ARG is nil, edit the decoded articles.
7908If ARG is 1, edit the raw articles.
7909If ARG is 2, edit the raw articles even in read-only groups.
7910Otherwise, allow editing of articles even in read-only
eec82323
LMI		 7911groups."
7912 (interactive "P")
16409b0b
GM		 7913 (let (force raw)
7914 (cond
7915 ((null arg))
7916 ((eq arg 1) (setq raw t))
7917 ((eq arg 2) (setq raw t
7918 force t))
7919 (t (setq force t)))
7920 (if (and raw (not force) (equal gnus-newsgroup-name "nndraft:drafts"))
715a2ca2 7921 (error "Can't edit the raw article in group nndraft:drafts"))
16409b0b
GM		 7922 (save-excursion
7923 (set-buffer gnus-summary-buffer)
7924 (let ((mail-parse-charset gnus-newsgroup-charset)
7925 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets))
7926 (gnus-set-global-variables)
7927 (when (and (not force)
7928 (gnus-group-read-only-p))
7929 (error "The current newsgroup does not support article editing"))
7930 (gnus-summary-show-article t)
7931 (when (and (not raw) (gnus-buffer-live-p gnus-article-buffer))
7932 (with-current-buffer gnus-article-buffer
d4dfaa19 7933 (mm-enable-multibyte-mule4)))
16409b0b
GM		 7934 (if (equal gnus-newsgroup-name "nndraft:drafts")
7935 (setq raw t))
7936 (gnus-article-edit-article
7937 (if raw 'ignore
7938 #'(lambda ()
7939 (let ((mbl mml-buffer-list))
7940 (setq mml-buffer-list nil)
7941 (mime-to-mml)
7942 (make-local-hook 'kill-buffer-hook)
7943 (let ((mml-buffer-list mml-buffer-list))
7944 (setq mml-buffer-list mbl)
7945 (make-local-variable 'mml-buffer-list))
7946 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))))
7947 `(lambda (no-highlight)
7948 (let ((mail-parse-charset ',gnus-newsgroup-charset)
7949 (mail-parse-ignored-charsets
7950 ',gnus-newsgroup-ignored-charsets))
7951 ,(if (not raw) '(progn
7952 (mml-to-mime)
7953 (mml-destroy-buffers)
7954 (remove-hook 'kill-buffer-hook
7955 'mml-destroy-buffers t)
7956 (kill-local-variable 'mml-buffer-list)))
7957 (gnus-summary-edit-article-done
7958 ,(or (mail-header-references gnus-current-headers) "")
7959 ,(gnus-group-read-only-p)
7960 ,gnus-summary-buffer no-highlight))))))))
eec82323
LMI		 7961
7962(defalias 'gnus-summary-edit-article-postpone 'gnus-article-edit-exit)
7963
6748645f
LMI		 7964(defun gnus-summary-edit-article-done (&optional references read-only buffer
7965 no-highlight)
eec82323
LMI		 7966 "Make edits to the current article permanent."
7967 (interactive)
7968 ;; Replace the article.
6748645f 7969 (let ((buf (current-buffer)))
16409b0b
GM		 7970 (with-temp-buffer
7971 (insert-buffer-substring buf)
6748645f
LMI		 7972 (if (and (not read-only)
7973 (not (gnus-request-replace-article
7974 (cdr gnus-article-current) (car gnus-article-current)
16409b0b 7975 (current-buffer) t)))
6748645f
LMI		 7976 (error "Couldn't replace article")
7977 ;; Update the summary buffer.
7978 (if (and references
7979 (equal (message-tokenize-header references " ")
7980 (message-tokenize-header
7981 (or (message-fetch-field "references") "") " ")))
7982 ;; We only have to update this line.
7983 (save-excursion
7984 (save-restriction
7985 (message-narrow-to-head)
7986 (let ((head (buffer-string))
7987 header)
16409b0b 7988 (with-temp-buffer
6748645f
LMI		 7989 (insert (format "211 %d Article retrieved.\n"
7990 (cdr gnus-article-current)))
7991 (insert head)
7992 (insert ".\n")
7993 (let ((nntp-server-buffer (current-buffer)))
7994 (setq header (car (gnus-get-newsgroup-headers
7995 (save-excursion
7996 (set-buffer gnus-summary-buffer)
7997 gnus-newsgroup-dependencies)
7998 t))))
7999 (save-excursion
8000 (set-buffer gnus-summary-buffer)
8001 (gnus-data-set-header
8002 (gnus-data-find (cdr gnus-article-current))
8003 header)
8004 (gnus-summary-update-article-line
8005 (cdr gnus-article-current) header))))))
8006 ;; Update threads.
8007 (set-buffer (or buffer gnus-summary-buffer))
8008 (gnus-summary-update-article (cdr gnus-article-current)))
8009 ;; Prettify the article buffer again.
8010 (unless no-highlight
8011 (save-excursion
8012 (set-buffer gnus-article-buffer)
16409b0b
GM		 8013 ;;;!!! Fix this -- article should be rehighlighted.
8014 ;;;(gnus-run-hooks 'gnus-article-display-hook)
6748645f
LMI		 8015 (set-buffer gnus-original-article-buffer)
8016 (gnus-request-article
8017 (cdr gnus-article-current)
8018 (car gnus-article-current) (current-buffer))))
8019 ;; Prettify the summary buffer line.
8020 (when (gnus-visual-p 'summary-highlight 'highlight)
8021 (gnus-run-hooks 'gnus-visual-mark-article-hook))))))
eec82323
LMI		 8022
8023(defun gnus-summary-edit-wash (key)
6748645f 8024 "Perform editing command KEY in the article buffer."
eec82323
LMI		 8025 (interactive
8026 (list
8027 (progn
8028 (message "%s" (concat (this-command-keys) "- "))
8029 (read-char))))
8030 (message "")
8031 (gnus-summary-edit-article)
8032 (execute-kbd-macro (concat (this-command-keys) key))
8033 (gnus-article-edit-done))
8034
8035;;; Respooling
8036
6748645f 8037(defun gnus-summary-respool-query (&optional silent trace)
eec82323
LMI		 8038 "Query where the respool algorithm would put this article."
8039 (interactive)
eec82323
LMI		 8040 (let (gnus-mark-article-hook)
8041 (gnus-summary-select-article)
8042 (save-excursion
8043 (set-buffer gnus-original-article-buffer)
8044 (save-restriction
8045 (message-narrow-to-head)
6748645f 8046 (let ((groups (nnmail-article-group 'identity trace)))
eec82323
LMI		 8047 (unless silent
8048 (if groups
8049 (message "This message would go to %s"
8050 (mapconcat 'car groups ", "))
8051 (message "This message would go to no groups"))
8052 groups))))))
8053
6748645f
LMI		 8054(defun gnus-summary-respool-trace ()
8055 "Trace where the respool algorithm would put this article.
8056Display a buffer showing all fancy splitting patterns which matched."
8057 (interactive)
8058 (gnus-summary-respool-query nil t))
8059
eec82323
LMI		 8060;; Summary marking commands.
8061
8062(defun gnus-summary-kill-same-subject-and-select (&optional unmark)
8063 "Mark articles which has the same subject as read, and then select the next.
8064If UNMARK is positive, remove any kind of mark.
8065If UNMARK is negative, tick articles."
8066 (interactive "P")
eec82323
LMI		 8067 (when unmark
8068 (setq unmark (prefix-numeric-value unmark)))
8069 (let ((count
8070 (gnus-summary-mark-same-subject
8071 (gnus-summary-article-subject) unmark)))
8072 ;; Select next unread article. If auto-select-same mode, should
8073 ;; select the first unread article.
8074 (gnus-summary-next-article t (and gnus-auto-select-same
8075 (gnus-summary-article-subject)))
8076 (gnus-message 7 "%d article%s marked as %s"
8077 count (if (= count 1) " is" "s are")
8078 (if unmark "unread" "read"))))
8079
8080(defun gnus-summary-kill-same-subject (&optional unmark)
8081 "Mark articles which has the same subject as read.
8082If UNMARK is positive, remove any kind of mark.
8083If UNMARK is negative, tick articles."
8084 (interactive "P")
eec82323
LMI		 8085 (when unmark
8086 (setq unmark (prefix-numeric-value unmark)))
8087 (let ((count
8088 (gnus-summary-mark-same-subject
8089 (gnus-summary-article-subject) unmark)))
8090 ;; If marked as read, go to next unread subject.
8091 (when (null unmark)
8092 ;; Go to next unread subject.
8093 (gnus-summary-next-subject 1 t))
8094 (gnus-message 7 "%d articles are marked as %s"
8095 count (if unmark "unread" "read"))))
8096
8097(defun gnus-summary-mark-same-subject (subject &optional unmark)
8098 "Mark articles with same SUBJECT as read, and return marked number.
8099If optional argument UNMARK is positive, remove any kinds of marks.
8100If optional argument UNMARK is negative, mark articles as unread instead."
8101 (let ((count 1))
8102 (save-excursion
8103 (cond
8104 ((null unmark) ; Mark as read.
8105 (while (and
8106 (progn
8107 (gnus-summary-mark-article-as-read gnus-killed-mark)
8108 (gnus-summary-show-thread) t)
8109 (gnus-summary-find-subject subject))
8110 (setq count (1+ count))))
8111 ((> unmark 0) ; Tick.
8112 (while (and
8113 (progn
8114 (gnus-summary-mark-article-as-unread gnus-ticked-mark)
8115 (gnus-summary-show-thread) t)
8116 (gnus-summary-find-subject subject))
8117 (setq count (1+ count))))
8118 (t ; Mark as unread.
8119 (while (and
8120 (progn
8121 (gnus-summary-mark-article-as-unread gnus-unread-mark)
8122 (gnus-summary-show-thread) t)
8123 (gnus-summary-find-subject subject))
8124 (setq count (1+ count)))))
8125 (gnus-set-mode-line 'summary)
8126 ;; Return the number of marked articles.
8127 count)))
8128
8129(defun gnus-summary-mark-as-processable (n &optional unmark)
8130 "Set the process mark on the next N articles.
8131If N is negative, mark backward instead. If UNMARK is non-nil, remove
8132the process mark instead. The difference between N and the actual
8133number of articles marked is returned."
8134 (interactive "p")
eec82323
LMI		 8135 (let ((backward (< n 0))
8136 (n (abs n)))
8137 (while (and
8138 (> n 0)
8139 (if unmark
8140 (gnus-summary-remove-process-mark
8141 (gnus-summary-article-number))
8142 (gnus-summary-set-process-mark (gnus-summary-article-number)))
8143 (zerop (gnus-summary-next-subject (if backward -1 1) nil t)))
8144 (setq n (1- n)))
8145 (when (/= 0 n)
8146 (gnus-message 7 "No more articles"))
8147 (gnus-summary-recenter)
8148 (gnus-summary-position-point)
8149 n))
8150
8151(defun gnus-summary-unmark-as-processable (n)
8152 "Remove the process mark from the next N articles.
6748645f
LMI		 8153If N is negative, unmark backward instead. The difference between N and
8154the actual number of articles unmarked is returned."
eec82323 8155 (interactive "p")
eec82323
LMI		 8156 (gnus-summary-mark-as-processable n t))
8157
8158(defun gnus-summary-unmark-all-processable ()
8159 "Remove the process mark from all articles."
8160 (interactive)
eec82323
LMI		 8161 (save-excursion
8162 (while gnus-newsgroup-processable
8163 (gnus-summary-remove-process-mark (car gnus-newsgroup-processable))))
8164 (gnus-summary-position-point))
8165
8166(defun gnus-summary-mark-as-expirable (n)
8167 "Mark N articles forward as expirable.
8168If N is negative, mark backward instead. The difference between N and
8169the actual number of articles marked is returned."
8170 (interactive "p")
eec82323
LMI		 8171 (gnus-summary-mark-forward n gnus-expirable-mark))
8172
8173(defun gnus-summary-mark-article-as-replied (article)
8174 "Mark ARTICLE replied and update the summary line."
8175 (push article gnus-newsgroup-replied)
8176 (let ((buffer-read-only nil))
16409b0b 8177 (when (gnus-summary-goto-subject article nil t)
eec82323
LMI		 8178 (gnus-summary-update-secondary-mark article))))
8179
8180(defun gnus-summary-set-bookmark (article)
8181 "Set a bookmark in current article."
8182 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 8183 (when (or (not (get-buffer gnus-article-buffer))
8184 (not gnus-current-article)
8185 (not gnus-article-current)
8186 (not (equal gnus-newsgroup-name (car gnus-article-current))))
8187 (error "No current article selected"))
8188 ;; Remove old bookmark, if one exists.
8189 (let ((old (assq article gnus-newsgroup-bookmarks)))
8190 (when old
8191 (setq gnus-newsgroup-bookmarks
8192 (delq old gnus-newsgroup-bookmarks))))
8193 ;; Set the new bookmark, which is on the form
8194 ;; (article-number . line-number-in-body).
8195 (push
8196 (cons article
8197 (save-excursion
8198 (set-buffer gnus-article-buffer)
8199 (count-lines
8200 (min (point)
8201 (save-excursion
8202 (goto-char (point-min))
8203 (search-forward "\n\n" nil t)
8204 (point)))
8205 (point))))
8206 gnus-newsgroup-bookmarks)
8207 (gnus-message 6 "A bookmark has been added to the current article."))
8208
8209(defun gnus-summary-remove-bookmark (article)
8210 "Remove the bookmark from the current article."
8211 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 8212 ;; Remove old bookmark, if one exists.
8213 (let ((old (assq article gnus-newsgroup-bookmarks)))
8214 (if old
8215 (progn
8216 (setq gnus-newsgroup-bookmarks
8217 (delq old gnus-newsgroup-bookmarks))
8218 (gnus-message 6 "Removed bookmark."))
8219 (gnus-message 6 "No bookmark in current article."))))
8220
8221;; Suggested by Daniel Quinlan <quinlan@best.com>.
8222(defun gnus-summary-mark-as-dormant (n)
8223 "Mark N articles forward as dormant.
8224If N is negative, mark backward instead. The difference between N and
8225the actual number of articles marked is returned."
8226 (interactive "p")
eec82323
LMI		 8227 (gnus-summary-mark-forward n gnus-dormant-mark))
8228
8229(defun gnus-summary-set-process-mark (article)
8230 "Set the process mark on ARTICLE and update the summary line."
8231 (setq gnus-newsgroup-processable
8232 (cons article
8233 (delq article gnus-newsgroup-processable)))
8234 (when (gnus-summary-goto-subject article)
8235 (gnus-summary-show-thread)
6748645f 8236 (gnus-summary-goto-subject article)
eec82323
LMI		 8237 (gnus-summary-update-secondary-mark article)))
8238
8239(defun gnus-summary-remove-process-mark (article)
8240 "Remove the process mark from ARTICLE and update the summary line."
8241 (setq gnus-newsgroup-processable (delq article gnus-newsgroup-processable))
8242 (when (gnus-summary-goto-subject article)
8243 (gnus-summary-show-thread)
6748645f 8244 (gnus-summary-goto-subject article)
eec82323
LMI		 8245 (gnus-summary-update-secondary-mark article)))
8246
8247(defun gnus-summary-set-saved-mark (article)
8248 "Set the process mark on ARTICLE and update the summary line."
8249 (push article gnus-newsgroup-saved)
8250 (when (gnus-summary-goto-subject article)
8251 (gnus-summary-update-secondary-mark article)))
8252
8253(defun gnus-summary-mark-forward (n &optional mark no-expire)
8254 "Mark N articles as read forwards.
8255If N is negative, mark backwards instead. Mark with MARK, ?r by default.
8256The difference between N and the actual number of articles marked is
16409b0b
GM		 8257returned.
8258Iff NO-EXPIRE, auto-expiry will be inhibited."
eec82323 8259 (interactive "p")
16409b0b 8260 (gnus-summary-show-thread)
eec82323
LMI		 8261 (let ((backward (< n 0))
8262 (gnus-summary-goto-unread
8263 (and gnus-summary-goto-unread
8264 (not (eq gnus-summary-goto-unread 'never))
8265 (not (memq mark (list gnus-unread-mark
8266 gnus-ticked-mark gnus-dormant-mark)))))
8267 (n (abs n))
8268 (mark (or mark gnus-del-mark)))
8269 (while (and (> n 0)
8270 (gnus-summary-mark-article nil mark no-expire)
8271 (zerop (gnus-summary-next-subject
8272 (if backward -1 1)
8273 (and gnus-summary-goto-unread
8274 (not (eq gnus-summary-goto-unread 'never)))
8275 t)))
8276 (setq n (1- n)))
8277 (when (/= 0 n)
8278 (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
8279 (gnus-summary-recenter)
8280 (gnus-summary-position-point)
8281 (gnus-set-mode-line 'summary)
8282 n))
8283
8284(defun gnus-summary-mark-article-as-read (mark)
8285 "Mark the current article quickly as read with MARK."
8286 (let ((article (gnus-summary-article-number)))
8287 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
8288 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8289 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8290 (push (cons article mark) gnus-newsgroup-reads)
8291 ;; Possibly remove from cache, if that is used.
8292 (when gnus-use-cache
8293 (gnus-cache-enter-remove-article article))
8294 ;; Allow the backend to change the mark.
8295 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8296 ;; Check for auto-expiry.
8297 (when (and gnus-newsgroup-auto-expire
16409b0b 8298 (memq mark gnus-auto-expirable-marks))
eec82323 8299 (setq mark gnus-expirable-mark)
6748645f
LMI		 8300 ;; Let the backend know about the mark change.
8301 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
eec82323
LMI		 8302 (push article gnus-newsgroup-expirable))
8303 ;; Set the mark in the buffer.
8304 (gnus-summary-update-mark mark 'unread)
8305 t))
8306
8307(defun gnus-summary-mark-article-as-unread (mark)
8308 "Mark the current article quickly as unread with MARK."
6748645f
LMI		 8309 (let* ((article (gnus-summary-article-number))
8310 (old-mark (gnus-summary-article-mark article)))
8311 ;; Allow the backend to change the mark.
8312 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8313 (if (eq mark old-mark)
8314 t
8315 (if (<= article 0)
8316 (progn
8317 (gnus-error 1 "Can't mark negative article numbers")
8318 nil)
8319 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8320 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8321 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
8322 (setq gnus-newsgroup-reads (delq article gnus-newsgroup-reads))
8323 (cond ((= mark gnus-ticked-mark)
8324 (push article gnus-newsgroup-marked))
8325 ((= mark gnus-dormant-mark)
8326 (push article gnus-newsgroup-dormant))
8327 (t
8328 (push article gnus-newsgroup-unreads)))
8329 (gnus-pull article gnus-newsgroup-reads)
eec82323 8330
6748645f
LMI		 8331 ;; See whether the article is to be put in the cache.
8332 (and gnus-use-cache
8333 (vectorp (gnus-summary-article-header article))
8334 (save-excursion
8335 (gnus-cache-possibly-enter-article
8336 gnus-newsgroup-name article
6748645f
LMI		 8337 (= mark gnus-ticked-mark)
8338 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
8339
8340 ;; Fix the mark.
8341 (gnus-summary-update-mark mark 'unread)
8342 t))))
eec82323
LMI		 8343
8344(defun gnus-summary-mark-article (&optional article mark no-expire)
8345 "Mark ARTICLE with MARK. MARK can be any character.
8346Four MARK strings are reserved: `? ' (unread), `?!' (ticked),
8347`??' (dormant) and `?E' (expirable).
16409b0b 8348If MARK is nil, then the default character `?r' is used.
eec82323 8349If ARTICLE is nil, then the article on the current line will be
16409b0b
GM		 8350marked.
8351Iff NO-EXPIRE, auto-expiry will be inhibited."
eec82323
LMI		 8352 ;; The mark might be a string.
8353 (when (stringp mark)
8354 (setq mark (aref mark 0)))
8355 ;; If no mark is given, then we check auto-expiring.
16409b0b
GM		 8356 (when (null mark)
8357 (setq mark gnus-del-mark))
8358 (when (and (not no-expire)
8359 gnus-newsgroup-auto-expire
8360 (memq mark gnus-auto-expirable-marks))
8361 (setq mark gnus-expirable-mark))
8362 (let ((article (or article (gnus-summary-article-number)))
8363 (old-mark (gnus-summary-article-mark article)))
6748645f
LMI		 8364 ;; Allow the backend to change the mark.
8365 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8366 (if (eq mark old-mark)
8367 t
8368 (unless article
8369 (error "No article on current line"))
8370 (if (not (if (or (= mark gnus-unread-mark)
8371 (= mark gnus-ticked-mark)
8372 (= mark gnus-dormant-mark))
8373 (gnus-mark-article-as-unread article mark)
8374 (gnus-mark-article-as-read article mark)))
8375 t
8376 ;; See whether the article is to be put in the cache.
8377 (and gnus-use-cache
8378 (not (= mark gnus-canceled-mark))
8379 (vectorp (gnus-summary-article-header article))
8380 (save-excursion
8381 (gnus-cache-possibly-enter-article
8382 gnus-newsgroup-name article
6748645f
LMI		 8383 (= mark gnus-ticked-mark)
8384 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
8385
8386 (when (gnus-summary-goto-subject article nil t)
8387 (let ((buffer-read-only nil))
8388 (gnus-summary-show-thread)
8389 ;; Fix the mark.
8390 (gnus-summary-update-mark mark 'unread)
8391 t))))))
eec82323
LMI		 8392
8393(defun gnus-summary-update-secondary-mark (article)
8394 "Update the secondary (read, process, cache) mark."
8395 (gnus-summary-update-mark
8396 (cond ((memq article gnus-newsgroup-processable)
8397 gnus-process-mark)
8398 ((memq article gnus-newsgroup-cached)
8399 gnus-cached-mark)
8400 ((memq article gnus-newsgroup-replied)
8401 gnus-replied-mark)
8402 ((memq article gnus-newsgroup-saved)
8403 gnus-saved-mark)
8404 (t gnus-unread-mark))
8405 'replied)
8406 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 8407 (gnus-run-hooks 'gnus-summary-update-hook))
eec82323
LMI		 8408 t)
8409
8410(defun gnus-summary-update-mark (mark type)
8411 (let ((forward (cdr (assq type gnus-summary-mark-positions)))
8412 (buffer-read-only nil))
8413 (re-search-backward "[\n\r]" (gnus-point-at-bol) 'move-to-limit)
16409b0b
GM		 8414 (when forward
8415 (when (looking-at "\r")
8416 (incf forward))
8417 (when (<= (+ forward (point)) (point-max))
8418 ;; Go to the right position on the line.
8419 (goto-char (+ forward (point)))
8420 ;; Replace the old mark with the new mark.
8421 (subst-char-in-region (point) (1+ (point)) (char-after) mark)
8422 ;; Optionally update the marks by some user rule.
8423 (when (eq type 'unread)
8424 (gnus-data-set-mark
8425 (gnus-data-find (gnus-summary-article-number)) mark)
8426 (gnus-summary-update-line (eq mark gnus-unread-mark)))))))
eec82323
LMI		 8427
8428(defun gnus-mark-article-as-read (article &optional mark)
8429 "Enter ARTICLE in the pertinent lists and remove it from others."
8430 ;; Make the article expirable.
8431 (let ((mark (or mark gnus-del-mark)))
8432 (if (= mark gnus-expirable-mark)
8433 (push article gnus-newsgroup-expirable)
8434 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)))
8435 ;; Remove from unread and marked lists.
8436 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
8437 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8438 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8439 (push (cons article mark) gnus-newsgroup-reads)
8440 ;; Possibly remove from cache, if that is used.
8441 (when gnus-use-cache
6748645f
LMI		 8442 (gnus-cache-enter-remove-article article))
8443 t))
eec82323
LMI		 8444
8445(defun gnus-mark-article-as-unread (article &optional mark)
8446 "Enter ARTICLE in the pertinent lists and remove it from others."
8447 (let ((mark (or mark gnus-ticked-mark)))
6748645f
LMI		 8448 (if (<= article 0)
8449 (progn
8450 (gnus-error 1 "Can't mark negative article numbers")
8451 nil)
8452 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked)
8453 gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant)
8454 gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)
8455 gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
eec82323 8456
6748645f
LMI		 8457 ;; Unsuppress duplicates?
8458 (when gnus-suppress-duplicates
8459 (gnus-dup-unsuppress-article article))
8460
8461 (cond ((= mark gnus-ticked-mark)
8462 (push article gnus-newsgroup-marked))
8463 ((= mark gnus-dormant-mark)
8464 (push article gnus-newsgroup-dormant))
8465 (t
8466 (push article gnus-newsgroup-unreads)))
8467 (gnus-pull article gnus-newsgroup-reads)
8468 t)))
eec82323
LMI		 8469
8470(defalias 'gnus-summary-mark-as-unread-forward
8471 'gnus-summary-tick-article-forward)
8472(make-obsolete 'gnus-summary-mark-as-unread-forward
8473 'gnus-summary-tick-article-forward)
8474(defun gnus-summary-tick-article-forward (n)
8475 "Tick N articles forwards.
8476If N is negative, tick backwards instead.
8477The difference between N and the number of articles ticked is returned."
8478 (interactive "p")
8479 (gnus-summary-mark-forward n gnus-ticked-mark))
8480
8481(defalias 'gnus-summary-mark-as-unread-backward
8482 'gnus-summary-tick-article-backward)
8483(make-obsolete 'gnus-summary-mark-as-unread-backward
8484 'gnus-summary-tick-article-backward)
8485(defun gnus-summary-tick-article-backward (n)
8486 "Tick N articles backwards.
8487The difference between N and the number of articles ticked is returned."
8488 (interactive "p")
8489 (gnus-summary-mark-forward (- n) gnus-ticked-mark))
8490
8491(defalias 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
8492(make-obsolete 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
8493(defun gnus-summary-tick-article (&optional article clear-mark)
8494 "Mark current article as unread.
8495Optional 1st argument ARTICLE specifies article number to be marked as unread.
8496Optional 2nd argument CLEAR-MARK remove any kinds of mark."
8497 (interactive)
8498 (gnus-summary-mark-article article (if clear-mark gnus-unread-mark
8499 gnus-ticked-mark)))
8500
8501(defun gnus-summary-mark-as-read-forward (n)
8502 "Mark N articles as read forwards.
8503If N is negative, mark backwards instead.
8504The difference between N and the actual number of articles marked is
8505returned."
8506 (interactive "p")
16409b0b 8507 (gnus-summary-mark-forward n gnus-del-mark gnus-inhibit-user-auto-expire))
eec82323
LMI		 8508
8509(defun gnus-summary-mark-as-read-backward (n)
8510 "Mark the N articles as read backwards.
8511The difference between N and the actual number of articles marked is
8512returned."
8513 (interactive "p")
16409b0b
GM		 8514 (gnus-summary-mark-forward
8515 (- n) gnus-del-mark gnus-inhibit-user-auto-expire))
eec82323
LMI		 8516
8517(defun gnus-summary-mark-as-read (&optional article mark)
8518 "Mark current article as read.
8519ARTICLE specifies the article to be marked as read.
8520MARK specifies a string to be inserted at the beginning of the line."
8521 (gnus-summary-mark-article article mark))
8522
8523(defun gnus-summary-clear-mark-forward (n)
8524 "Clear marks from N articles forward.
8525If N is negative, clear backward instead.
8526The difference between N and the number of marks cleared is returned."
8527 (interactive "p")
8528 (gnus-summary-mark-forward n gnus-unread-mark))
8529
8530(defun gnus-summary-clear-mark-backward (n)
8531 "Clear marks from N articles backward.
8532The difference between N and the number of marks cleared is returned."
8533 (interactive "p")
8534 (gnus-summary-mark-forward (- n) gnus-unread-mark))
8535
8536(defun gnus-summary-mark-unread-as-read ()
8537 "Intended to be used by `gnus-summary-mark-article-hook'."
8538 (when (memq gnus-current-article gnus-newsgroup-unreads)
8539 (gnus-summary-mark-article gnus-current-article gnus-read-mark)))
8540
8541(defun gnus-summary-mark-read-and-unread-as-read ()
8542 "Intended to be used by `gnus-summary-mark-article-hook'."
8543 (let ((mark (gnus-summary-article-mark)))
8544 (when (or (gnus-unread-mark-p mark)
8545 (gnus-read-mark-p mark))
8546 (gnus-summary-mark-article gnus-current-article gnus-read-mark))))
8547
8548(defun gnus-summary-mark-region-as-read (point mark all)
8549 "Mark all unread articles between point and mark as read.
8550If given a prefix, mark all articles between point and mark as read,
8551even ticked and dormant ones."
8552 (interactive "r\nP")
8553 (save-excursion
8554 (let (article)
8555 (goto-char point)
8556 (beginning-of-line)
8557 (while (and
8558 (< (point) mark)
8559 (progn
8560 (when (or all
8561 (memq (setq article (gnus-summary-article-number))
8562 gnus-newsgroup-unreads))
8563 (gnus-summary-mark-article article gnus-del-mark))
8564 t)
8565 (gnus-summary-find-next))))))
8566
8567(defun gnus-summary-mark-below (score mark)
8568 "Mark articles with score less than SCORE with MARK."
8569 (interactive "P\ncMark: ")
eec82323
LMI		 8570 (setq score (if score
8571 (prefix-numeric-value score)
8572 (or gnus-summary-default-score 0)))
8573 (save-excursion
8574 (set-buffer gnus-summary-buffer)
8575 (goto-char (point-min))
8576 (while
8577 (progn
8578 (and (< (gnus-summary-article-score) score)
8579 (gnus-summary-mark-article nil mark))
8580 (gnus-summary-find-next)))))
8581
8582(defun gnus-summary-kill-below (&optional score)
8583 "Mark articles with score below SCORE as read."
8584 (interactive "P")
eec82323
LMI		 8585 (gnus-summary-mark-below score gnus-killed-mark))
8586
8587(defun gnus-summary-clear-above (&optional score)
8588 "Clear all marks from articles with score above SCORE."
8589 (interactive "P")
eec82323
LMI		 8590 (gnus-summary-mark-above score gnus-unread-mark))
8591
8592(defun gnus-summary-tick-above (&optional score)
8593 "Tick all articles with score above SCORE."
8594 (interactive "P")
eec82323
LMI		 8595 (gnus-summary-mark-above score gnus-ticked-mark))
8596
8597(defun gnus-summary-mark-above (score mark)
8598 "Mark articles with score over SCORE with MARK."
8599 (interactive "P\ncMark: ")
eec82323
LMI		 8600 (setq score (if score
8601 (prefix-numeric-value score)
8602 (or gnus-summary-default-score 0)))
8603 (save-excursion
8604 (set-buffer gnus-summary-buffer)
8605 (goto-char (point-min))
8606 (while (and (progn
8607 (when (> (gnus-summary-article-score) score)
8608 (gnus-summary-mark-article nil mark))
8609 t)
8610 (gnus-summary-find-next)))))
8611
8612;; Suggested by Daniel Quinlan <quinlan@best.com>.
8613(defalias 'gnus-summary-show-all-expunged 'gnus-summary-limit-include-expunged)
8614(defun gnus-summary-limit-include-expunged (&optional no-error)
8615 "Display all the hidden articles that were expunged for low scores."
8616 (interactive)
eec82323
LMI		 8617 (let ((buffer-read-only nil))
8618 (let ((scored gnus-newsgroup-scored)
8619 headers h)
8620 (while scored
8621 (unless (gnus-summary-goto-subject (caar scored))
8622 (and (setq h (gnus-summary-article-header (caar scored)))
8623 (< (cdar scored) gnus-summary-expunge-below)
8624 (push h headers)))
8625 (setq scored (cdr scored)))
8626 (if (not headers)
8627 (when (not no-error)
a8151ef7 8628 (error "No expunged articles hidden"))
eec82323
LMI		 8629 (goto-char (point-min))
8630 (gnus-summary-prepare-unthreaded (nreverse headers))
8631 (goto-char (point-min))
8632 (gnus-summary-position-point)
8633 t))))
8634
8635(defun gnus-summary-catchup (&optional all quietly to-here not-mark)
8636 "Mark all unread articles in this newsgroup as read.
8637If prefix argument ALL is non-nil, ticked and dormant articles will
8638also be marked as read.
8639If QUIETLY is non-nil, no questions will be asked.
8640If TO-HERE is non-nil, it should be a point in the buffer. All
8641articles before this point will be marked as read.
8642Note that this function will only catch up the unread article
8643in the current summary buffer limitation.
8644The number of articles marked as read is returned."
8645 (interactive "P")
eec82323
LMI		 8646 (prog1
8647 (save-excursion
8648 (when (or quietly
8649 (not gnus-interactive-catchup) ;Without confirmation?
8650 gnus-expert-user
8651 (gnus-y-or-n-p
8652 (if all
8653 "Mark absolutely all articles as read? "
8654 "Mark all unread articles as read? ")))
8655 (if (and not-mark
8656 (not gnus-newsgroup-adaptive)
8657 (not gnus-newsgroup-auto-expire)
a8151ef7
LMI		 8658 (not gnus-suppress-duplicates)
8659 (or (not gnus-use-cache)
6748645f 8660 (eq gnus-use-cache 'passive)))
eec82323
LMI		 8661 (progn
8662 (when all
8663 (setq gnus-newsgroup-marked nil
8664 gnus-newsgroup-dormant nil))
6748645f 8665 (setq gnus-newsgroup-unreads gnus-newsgroup-downloadable))
eec82323
LMI		 8666 ;; We actually mark all articles as canceled, which we
8667 ;; have to do when using auto-expiry or adaptive scoring.
8668 (gnus-summary-show-all-threads)
6748645f 8669 (when (gnus-summary-first-subject (not all) t)
eec82323
LMI		 8670 (while (and
8671 (if to-here (< (point) to-here) t)
8672 (gnus-summary-mark-article-as-read gnus-catchup-mark)
6748645f 8673 (gnus-summary-find-next (not all) nil nil t))))
eec82323
LMI		 8674 (gnus-set-mode-line 'summary))
8675 t))
8676 (gnus-summary-position-point)))
8677
8678(defun gnus-summary-catchup-to-here (&optional all)
8679 "Mark all unticked articles before the current one as read.
8680If ALL is non-nil, also mark ticked and dormant articles as read."
8681 (interactive "P")
eec82323
LMI		 8682 (save-excursion
8683 (gnus-save-hidden-threads
8684 (let ((beg (point)))
8685 ;; We check that there are unread articles.
8686 (when (or all (gnus-summary-find-prev))
8687 (gnus-summary-catchup all t beg)))))
8688 (gnus-summary-position-point))
8689
8690(defun gnus-summary-catchup-all (&optional quietly)
8691 "Mark all articles in this newsgroup as read."
8692 (interactive "P")
eec82323
LMI		 8693 (gnus-summary-catchup t quietly))
8694
8695(defun gnus-summary-catchup-and-exit (&optional all quietly)
16409b0b 8696 "Mark all unread articles in this group as read, then exit.
eec82323
LMI		 8697If prefix argument ALL is non-nil, all articles are marked as read."
8698 (interactive "P")
eec82323
LMI		 8699 (when (gnus-summary-catchup all quietly nil 'fast)
8700 ;; Select next newsgroup or exit.
6748645f
LMI		 8701 (if (and (not (gnus-group-quit-config gnus-newsgroup-name))
8702 (eq gnus-auto-select-next 'quietly))
eec82323
LMI		 8703 (gnus-summary-next-group nil)
8704 (gnus-summary-exit))))
8705
8706(defun gnus-summary-catchup-all-and-exit (&optional quietly)
8707 "Mark all articles in this newsgroup as read, and then exit."
8708 (interactive "P")
eec82323
LMI		 8709 (gnus-summary-catchup-and-exit t quietly))
8710
eec82323
LMI		 8711(defun gnus-summary-catchup-and-goto-next-group (&optional all)
8712 "Mark all articles in this group as read and select the next group.
8713If given a prefix, mark all articles, unread as well as ticked, as
8714read."
8715 (interactive "P")
eec82323
LMI		 8716 (save-excursion
8717 (gnus-summary-catchup all))
16409b0b
GM		 8718 (gnus-summary-next-group))
8719
8720;;;
8721;;; with article
8722;;;
8723
8724(defmacro gnus-with-article (article &rest forms)
8725 "Select ARTICLE and perform FORMS in the original article buffer.
8726Then replace the article with the result."
8727 `(progn
8728 ;; We don't want the article to be marked as read.
8729 (let (gnus-mark-article-hook)
8730 (gnus-summary-select-article t t nil ,article))
8731 (set-buffer gnus-original-article-buffer)
8732 ,@forms
8733 (if (not (gnus-check-backend-function
8734 'request-replace-article (car gnus-article-current)))
8735 (gnus-message 5 "Read-only group; not replacing")
8736 (unless (gnus-request-replace-article
8737 ,article (car gnus-article-current)
8738 (current-buffer) t)
8739 (error "Couldn't replace article")))
8740 ;; The cache and backlog have to be flushed somewhat.
8741 (when gnus-keep-backlog
8742 (gnus-backlog-remove-article
8743 (car gnus-article-current) (cdr gnus-article-current)))
8744 (when gnus-use-cache
8745 (gnus-cache-update-article
8746 (car gnus-article-current) (cdr gnus-article-current)))))
8747
8748(put 'gnus-with-article 'lisp-indent-function 1)
8749(put 'gnus-with-article 'edebug-form-spec '(form body))
eec82323
LMI		 8750
8751;; Thread-based commands.
8752
8753(defun gnus-summary-articles-in-thread (&optional article)
8754 "Return a list of all articles in the current thread.
8755If ARTICLE is non-nil, return all articles in the thread that starts
8756with that article."
8757 (let* ((article (or article (gnus-summary-article-number)))
8758 (data (gnus-data-find-list article))
8759 (top-level (gnus-data-level (car data)))
8760 (top-subject
8761 (cond ((null gnus-thread-operation-ignore-subject)
8762 (gnus-simplify-subject-re
8763 (mail-header-subject (gnus-data-header (car data)))))
8764 ((eq gnus-thread-operation-ignore-subject 'fuzzy)
8765 (gnus-simplify-subject-fuzzy
8766 (mail-header-subject (gnus-data-header (car data)))))
8767 (t nil)))
8768 (end-point (save-excursion
8769 (if (gnus-summary-go-to-next-thread)
8770 (point) (point-max))))
8771 articles)
8772 (while (and data
8773 (< (gnus-data-pos (car data)) end-point))
8774 (when (or (not top-subject)
8775 (string= top-subject
8776 (if (eq gnus-thread-operation-ignore-subject 'fuzzy)
8777 (gnus-simplify-subject-fuzzy
8778 (mail-header-subject
8779 (gnus-data-header (car data))))
8780 (gnus-simplify-subject-re
8781 (mail-header-subject
8782 (gnus-data-header (car data)))))))
8783 (push (gnus-data-number (car data)) articles))
8784 (unless (and (setq data (cdr data))
8785 (> (gnus-data-level (car data)) top-level))
8786 (setq data nil)))
8787 ;; Return the list of articles.
8788 (nreverse articles)))
8789
8790(defun gnus-summary-rethread-current ()
8791 "Rethread the thread the current article is part of."
8792 (interactive)
eec82323
LMI		 8793 (let* ((gnus-show-threads t)
8794 (article (gnus-summary-article-number))
8795 (id (mail-header-id (gnus-summary-article-header)))
8796 (gnus-newsgroup-threads (list (gnus-id-to-thread (gnus-root-id id)))))
8797 (unless id
8798 (error "No article on the current line"))
8799 (gnus-rebuild-thread id)
8800 (gnus-summary-goto-subject article)))
8801
8802(defun gnus-summary-reparent-thread ()
8803 "Make the current article child of the marked (or previous) article.
8804
8805Note that the re-threading will only work if `gnus-thread-ignore-subject'
8806is non-nil or the Subject: of both articles are the same."
8807 (interactive)
8808 (unless (not (gnus-group-read-only-p))
a8151ef7 8809 (error "The current newsgroup does not support article editing"))
eec82323 8810 (unless (<= (length gnus-newsgroup-processable) 1)
a8151ef7 8811 (error "No more than one article may be marked"))
eec82323
LMI		 8812 (save-window-excursion
8813 (let ((gnus-article-buffer " *reparent*")
8814 (current-article (gnus-summary-article-number))
8815 ;; First grab the marked article, otherwise one line up.
8816 (parent-article (if (not (null gnus-newsgroup-processable))
8817 (car gnus-newsgroup-processable)
8818 (save-excursion
8819 (if (eq (forward-line -1) 0)
8820 (gnus-summary-article-number)
a8151ef7 8821 (error "Beginning of summary buffer"))))))
eec82323 8822 (unless (not (eq current-article parent-article))
a8151ef7 8823 (error "An article may not be self-referential"))
eec82323
LMI		 8824 (let ((message-id (mail-header-id
8825 (gnus-summary-article-header parent-article))))
8826 (unless (and message-id (not (equal message-id "")))
a8151ef7 8827 (error "No message-id in desired parent"))
16409b0b
GM		 8828 (gnus-with-article current-article
8829 (save-restriction
eec82323 8830 (goto-char (point-min))
16409b0b 8831 (message-narrow-to-head)
6748645f
LMI		 8832 (if (re-search-forward "^References: " nil t)
8833 (progn
8834 (re-search-forward "^[^ \t]" nil t)
8835 (forward-line -1)
8836 (end-of-line)
8837 (insert " " message-id))
16409b0b 8838 (insert "References: " message-id "\n"))))
eec82323
LMI		 8839 (set-buffer gnus-summary-buffer)
8840 (gnus-summary-unmark-all-processable)
6748645f 8841 (gnus-summary-update-article current-article)
eec82323 8842 (gnus-summary-rethread-current)
a8151ef7 8843 (gnus-message 3 "Article %d is now the child of article %d"
eec82323
LMI		 8844 current-article parent-article)))))
8845
8846(defun gnus-summary-toggle-threads (&optional arg)
8847 "Toggle showing conversation threads.
8848If ARG is positive number, turn showing conversation threads on."
8849 (interactive "P")
eec82323
LMI		 8850 (let ((current (or (gnus-summary-article-number) gnus-newsgroup-end)))
8851 (setq gnus-show-threads
8852 (if (null arg) (not gnus-show-threads)
8853 (> (prefix-numeric-value arg) 0)))
8854 (gnus-summary-prepare)
8855 (gnus-summary-goto-subject current)
8856 (gnus-message 6 "Threading is now %s" (if gnus-show-threads "on" "off"))
8857 (gnus-summary-position-point)))
8858
8859(defun gnus-summary-show-all-threads ()
8860 "Show all threads."
8861 (interactive)
eec82323
LMI		 8862 (save-excursion
8863 (let ((buffer-read-only nil))
8864 (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)))
8865 (gnus-summary-position-point))
8866
8867(defun gnus-summary-show-thread ()
8868 "Show thread subtrees.
8869Returns nil if no thread was there to be shown."
8870 (interactive)
eec82323
LMI		 8871 (let ((buffer-read-only nil)
8872 (orig (point))
8873 ;; first goto end then to beg, to have point at beg after let
8874 (end (progn (end-of-line) (point)))
8875 (beg (progn (beginning-of-line) (point))))
8876 (prog1
8877 ;; Any hidden lines here?
8878 (search-forward "\r" end t)
8879 (subst-char-in-region beg end ?\^M ?\n t)
8880 (goto-char orig)
8881 (gnus-summary-position-point))))
8882
8883(defun gnus-summary-hide-all-threads ()
8884 "Hide all thread subtrees."
8885 (interactive)
eec82323
LMI		 8886 (save-excursion
8887 (goto-char (point-min))
8888 (gnus-summary-hide-thread)
8889 (while (zerop (gnus-summary-next-thread 1 t))
8890 (gnus-summary-hide-thread)))
8891 (gnus-summary-position-point))
8892
8893(defun gnus-summary-hide-thread ()
8894 "Hide thread subtrees.
8895Returns nil if no threads were there to be hidden."
8896 (interactive)
eec82323
LMI		 8897 (let ((buffer-read-only nil)
8898 (start (point))
8899 (article (gnus-summary-article-number)))
8900 (goto-char start)
8901 ;; Go forward until either the buffer ends or the subthread
8902 ;; ends.
8903 (when (and (not (eobp))
8904 (or (zerop (gnus-summary-next-thread 1 t))
8905 (goto-char (point-max))))
8906 (prog1
8907 (if (and (> (point) start)
8908 (search-backward "\n" start t))
8909 (progn
8910 (subst-char-in-region start (point) ?\n ?\^M)
8911 (gnus-summary-goto-subject article))
8912 (goto-char start)
16409b0b 8913 nil)))))
eec82323
LMI		 8914
8915(defun gnus-summary-go-to-next-thread (&optional previous)
8916 "Go to the same level (or less) next thread.
8917If PREVIOUS is non-nil, go to previous thread instead.
8918Return the article number moved to, or nil if moving was impossible."
8919 (let ((level (gnus-summary-thread-level))
8920 (way (if previous -1 1))
8921 (beg (point)))
8922 (forward-line way)
8923 (while (and (not (eobp))
8924 (< level (gnus-summary-thread-level)))
8925 (forward-line way))
8926 (if (eobp)
8927 (progn
8928 (goto-char beg)
8929 nil)
8930 (setq beg (point))
8931 (prog1
8932 (gnus-summary-article-number)
8933 (goto-char beg)))))
8934
8935(defun gnus-summary-next-thread (n &optional silent)
8936 "Go to the same level next N'th thread.
8937If N is negative, search backward instead.
8938Returns the difference between N and the number of skips actually
8939done.
8940
8941If SILENT, don't output messages."
8942 (interactive "p")
eec82323
LMI		 8943 (let ((backward (< n 0))
8944 (n (abs n)))
8945 (while (and (> n 0)
8946 (gnus-summary-go-to-next-thread backward))
8947 (decf n))
8948 (unless silent
8949 (gnus-summary-position-point))
8950 (when (and (not silent) (/= 0 n))
8951 (gnus-message 7 "No more threads"))
8952 n))
8953
8954(defun gnus-summary-prev-thread (n)
8955 "Go to the same level previous N'th thread.
8956Returns the difference between N and the number of skips actually
8957done."
8958 (interactive "p")
eec82323
LMI		 8959 (gnus-summary-next-thread (- n)))
8960
8961(defun gnus-summary-go-down-thread ()
8962 "Go down one level in the current thread."
8963 (let ((children (gnus-summary-article-children)))
8964 (when children
8965 (gnus-summary-goto-subject (car children)))))
8966
8967(defun gnus-summary-go-up-thread ()
8968 "Go up one level in the current thread."
8969 (let ((parent (gnus-summary-article-parent)))
8970 (when parent
8971 (gnus-summary-goto-subject parent))))
8972
8973(defun gnus-summary-down-thread (n)
8974 "Go down thread N steps.
8975If N is negative, go up instead.
8976Returns the difference between N and how many steps down that were
8977taken."
8978 (interactive "p")
eec82323
LMI		 8979 (let ((up (< n 0))
8980 (n (abs n)))
8981 (while (and (> n 0)
8982 (if up (gnus-summary-go-up-thread)
8983 (gnus-summary-go-down-thread)))
8984 (setq n (1- n)))
8985 (gnus-summary-position-point)
8986 (when (/= 0 n)
8987 (gnus-message 7 "Can't go further"))
8988 n))
8989
8990(defun gnus-summary-up-thread (n)
8991 "Go up thread N steps.
8992If N is negative, go up instead.
8993Returns the difference between N and how many steps down that were
8994taken."
8995 (interactive "p")
eec82323
LMI		 8996 (gnus-summary-down-thread (- n)))
8997
8998(defun gnus-summary-top-thread ()
8999 "Go to the top of the thread."
9000 (interactive)
eec82323
LMI		 9001 (while (gnus-summary-go-up-thread))
9002 (gnus-summary-article-number))
9003
9004(defun gnus-summary-kill-thread (&optional unmark)
9005 "Mark articles under current thread as read.
9006If the prefix argument is positive, remove any kinds of marks.
9007If the prefix argument is negative, tick articles instead."
9008 (interactive "P")
eec82323
LMI		 9009 (when unmark
9010 (setq unmark (prefix-numeric-value unmark)))
9011 (let ((articles (gnus-summary-articles-in-thread)))
9012 (save-excursion
9013 ;; Expand the thread.
9014 (gnus-summary-show-thread)
9015 ;; Mark all the articles.
9016 (while articles
9017 (gnus-summary-goto-subject (car articles))
9018 (cond ((null unmark)
9019 (gnus-summary-mark-article-as-read gnus-killed-mark))
9020 ((> unmark 0)
9021 (gnus-summary-mark-article-as-unread gnus-unread-mark))
9022 (t
9023 (gnus-summary-mark-article-as-unread gnus-ticked-mark)))
9024 (setq articles (cdr articles))))
9025 ;; Hide killed subtrees.
9026 (and (null unmark)
9027 gnus-thread-hide-killed
9028 (gnus-summary-hide-thread))
9029 ;; If marked as read, go to next unread subject.
9030 (when (null unmark)
9031 ;; Go to next unread subject.
9032 (gnus-summary-next-subject 1 t)))
9033 (gnus-set-mode-line 'summary))
9034
9035;; Summary sorting commands
9036
9037(defun gnus-summary-sort-by-number (&optional reverse)
9038 "Sort the summary buffer by article number.
9039Argument REVERSE means reverse order."
9040 (interactive "P")
9041 (gnus-summary-sort 'number reverse))
9042
9043(defun gnus-summary-sort-by-author (&optional reverse)
9044 "Sort the summary buffer by author name alphabetically.
16409b0b 9045If `case-fold-search' is non-nil, case of letters is ignored.
eec82323
LMI		 9046Argument REVERSE means reverse order."
9047 (interactive "P")
9048 (gnus-summary-sort 'author reverse))
9049
9050(defun gnus-summary-sort-by-subject (&optional reverse)
9051 "Sort the summary buffer by subject alphabetically. `Re:'s are ignored.
16409b0b 9052If `case-fold-search' is non-nil, case of letters is ignored.
eec82323
LMI		 9053Argument REVERSE means reverse order."
9054 (interactive "P")
9055 (gnus-summary-sort 'subject reverse))
9056
9057(defun gnus-summary-sort-by-date (&optional reverse)
9058 "Sort the summary buffer by date.
9059Argument REVERSE means reverse order."
9060 (interactive "P")
9061 (gnus-summary-sort 'date reverse))
9062
9063(defun gnus-summary-sort-by-score (&optional reverse)
9064 "Sort the summary buffer by score.
9065Argument REVERSE means reverse order."
9066 (interactive "P")
9067 (gnus-summary-sort 'score reverse))
9068
9069(defun gnus-summary-sort-by-lines (&optional reverse)
16409b0b 9070 "Sort the summary buffer by the number of lines.
eec82323
LMI		 9071Argument REVERSE means reverse order."
9072 (interactive "P")
9073 (gnus-summary-sort 'lines reverse))
9074
16409b0b
GM		 9075(defun gnus-summary-sort-by-chars (&optional reverse)
9076 "Sort the summary buffer by article length.
9077Argument REVERSE means reverse order."
9078 (interactive "P")
9079 (gnus-summary-sort 'chars reverse))
9080
eec82323
LMI		 9081(defun gnus-summary-sort (predicate reverse)
9082 "Sort summary buffer by PREDICATE. REVERSE means reverse order."
eec82323
LMI		 9083 (let* ((thread (intern (format "gnus-thread-sort-by-%s" predicate)))
9084 (article (intern (format "gnus-article-sort-by-%s" predicate)))
9085 (gnus-thread-sort-functions
16409b0b
GM		 9086 (if (not reverse)
9087 thread
9088 `(lambda (t1 t2)
9089 (,thread t2 t1))))
9090 (gnus-sort-gathered-threads-function
9091 gnus-thread-sort-functions)
eec82323 9092 (gnus-article-sort-functions
16409b0b
GM		 9093 (if (not reverse)
9094 article
9095 `(lambda (t1 t2)
9096 (,article t2 t1))))
eec82323
LMI		 9097 (buffer-read-only)
9098 (gnus-summary-prepare-hook nil))
9099 ;; We do the sorting by regenerating the threads.
9100 (gnus-summary-prepare)
9101 ;; Hide subthreads if needed.
9102 (when (and gnus-show-threads gnus-thread-hide-subtree)
9103 (gnus-summary-hide-all-threads))))
9104
9105;; Summary saving commands.
9106
9107(defun gnus-summary-save-article (&optional n not-saved)
9108 "Save the current article using the default saver function.
9109If N is a positive number, save the N next articles.
9110If N is a negative number, save the N previous articles.
9111If N is nil and any articles have been marked with the process mark,
9112save those articles instead.
9113The variable `gnus-default-article-saver' specifies the saver function."
9114 (interactive "P")
eec82323
LMI		 9115 (let* ((articles (gnus-summary-work-articles n))
9116 (save-buffer (save-excursion
9117 (nnheader-set-temp-buffer " *Gnus Save*")))
9118 (num (length articles))
16409b0b
GM		 9119 header file)
9120 (dolist (article articles)
9121 (setq header (gnus-summary-article-header article))
eec82323
LMI		 9122 (if (not (vectorp header))
9123 ;; This is a pseudo-article.
9124 (if (assq 'name header)
9125 (gnus-copy-file (cdr (assq 'name header)))
9126 (gnus-message 1 "Article %d is unsaveable" article))
9127 ;; This is a real article.
9128 (save-window-excursion
9129 (gnus-summary-select-article t nil nil article))
9130 (save-excursion
9131 (set-buffer save-buffer)
9132 (erase-buffer)
9133 (insert-buffer-substring gnus-original-article-buffer))
9134 (setq file (gnus-article-save save-buffer file num))
9135 (gnus-summary-remove-process-mark article)
9136 (unless not-saved
9137 (gnus-summary-set-saved-mark article))))
9138 (gnus-kill-buffer save-buffer)
9139 (gnus-summary-position-point)
9140 (gnus-set-mode-line 'summary)
9141 n))
9142
9143(defun gnus-summary-pipe-output (&optional arg)
9144 "Pipe the current article to a subprocess.
9145If N is a positive number, pipe the N next articles.
9146If N is a negative number, pipe the N previous articles.
9147If N is nil and any articles have been marked with the process mark,
9148pipe those articles instead."
9149 (interactive "P")
84169620 9150 (require 'gnus-art)
eec82323
LMI		 9151 (let ((gnus-default-article-saver 'gnus-summary-save-in-pipe))
9152 (gnus-summary-save-article arg t))
9153 (gnus-configure-windows 'pipe))
9154
9155(defun gnus-summary-save-article-mail (&optional arg)
9156 "Append the current article to an mail file.
9157If N is a positive number, save the N next articles.
9158If N is a negative number, save the N previous articles.
9159If N is nil and any articles have been marked with the process mark,
9160save those articles instead."
9161 (interactive "P")
84169620 9162 (require 'gnus-art)
eec82323
LMI		 9163 (let ((gnus-default-article-saver 'gnus-summary-save-in-mail))
9164 (gnus-summary-save-article arg)))
9165
9166(defun gnus-summary-save-article-rmail (&optional arg)
9167 "Append the current article to an rmail file.
9168If N is a positive number, save the N next articles.
9169If N is a negative number, save the N previous articles.
9170If N is nil and any articles have been marked with the process mark,
9171save those articles instead."
9172 (interactive "P")
84169620 9173 (require 'gnus-art)
eec82323
LMI		 9174 (let ((gnus-default-article-saver 'gnus-summary-save-in-rmail))
9175 (gnus-summary-save-article arg)))
9176
9177(defun gnus-summary-save-article-file (&optional arg)
9178 "Append the current article to a file.
9179If N is a positive number, save the N next articles.
9180If N is a negative number, save the N previous articles.
9181If N is nil and any articles have been marked with the process mark,
9182save those articles instead."
9183 (interactive "P")
84169620 9184 (require 'gnus-art)
eec82323
LMI		 9185 (let ((gnus-default-article-saver 'gnus-summary-save-in-file))
9186 (gnus-summary-save-article arg)))
9187
9188(defun gnus-summary-write-article-file (&optional arg)
9189 "Write the current article to a file, deleting the previous file.
9190If N is a positive number, save the N next articles.
9191If N is a negative number, save the N previous articles.
9192If N is nil and any articles have been marked with the process mark,
9193save those articles instead."
9194 (interactive "P")
84169620 9195 (require 'gnus-art)
eec82323
LMI		 9196 (let ((gnus-default-article-saver 'gnus-summary-write-to-file))
9197 (gnus-summary-save-article arg)))
9198
9199(defun gnus-summary-save-article-body-file (&optional arg)
9200 "Append the current article body to a file.
9201If N is a positive number, save the N next articles.
9202If N is a negative number, save the N previous articles.
9203If N is nil and any articles have been marked with the process mark,
9204save those articles instead."
9205 (interactive "P")
84169620 9206 (require 'gnus-art)
eec82323
LMI		 9207 (let ((gnus-default-article-saver 'gnus-summary-save-body-in-file))
9208 (gnus-summary-save-article arg)))
9209
9210(defun gnus-summary-pipe-message (program)
9211 "Pipe the current article through PROGRAM."
9212 (interactive "sProgram: ")
eec82323 9213 (gnus-summary-select-article)
6748645f 9214 (let ((mail-header-separator ""))
eec82323
LMI		 9215 (gnus-eval-in-buffer-window gnus-article-buffer
9216 (save-restriction
9217 (widen)
9218 (let ((start (window-start))
9219 buffer-read-only)
9220 (message-pipe-buffer-body program)
9221 (set-window-start (get-buffer-window (current-buffer)) start))))))
9222
9223(defun gnus-get-split-value (methods)
9224 "Return a value based on the split METHODS."
9225 (let (split-name method result match)
9226 (when methods
9227 (save-excursion
9228 (set-buffer gnus-original-article-buffer)
9229 (save-restriction
9230 (nnheader-narrow-to-headers)
d4dfaa19 9231 (while (and methods (not split-name))
eec82323
LMI		 9232 (goto-char (point-min))
9233 (setq method (pop methods))
9234 (setq match (car method))
9235 (when (cond
9236 ((stringp match)
9237 ;; Regular expression.
9238 (ignore-errors
9239 (re-search-forward match nil t)))
9240 ((gnus-functionp match)
9241 ;; Function.
9242 (save-restriction
9243 (widen)
9244 (setq result (funcall match gnus-newsgroup-name))))
9245 ((consp match)
9246 ;; Form.
9247 (save-restriction
9248 (widen)
9249 (setq result (eval match)))))
d4dfaa19 9250 (setq split-name (cdr method))
eec82323
LMI		 9251 (cond ((stringp result)
9252 (push (expand-file-name
9253 result gnus-article-save-directory)
9254 split-name))
9255 ((consp result)
9256 (setq split-name (append result split-name)))))))))
16409b0b 9257 (nreverse split-name)))
eec82323
LMI		 9258
9259(defun gnus-valid-move-group-p (group)
9260 (and (boundp group)
9261 (symbol-name group)
16409b0b
GM		 9262 (symbol-value group)
9263 (gnus-get-function (gnus-find-method-for-group
9264 (symbol-name group)) 'request-accept-article t)))
eec82323
LMI		 9265
9266(defun gnus-read-move-group-name (prompt default articles prefix)
9267 "Read a group name."
9268 (let* ((split-name (gnus-get-split-value gnus-move-split-methods))
9269 (minibuffer-confirm-incomplete nil) ; XEmacs
9270 (prom
9271 (format "%s %s to:"
9272 prompt
9273 (if (> (length articles) 1)
9274 (format "these %d articles" (length articles))
9275 "this article")))
9276 (to-newsgroup
9277 (cond
9278 ((null split-name)
9279 (gnus-completing-read default prom
9280 gnus-active-hashtb
9281 'gnus-valid-move-group-p
9282 nil prefix
9283 'gnus-group-history))
9284 ((= 1 (length split-name))
9285 (gnus-completing-read (car split-name) prom
9286 gnus-active-hashtb
9287 'gnus-valid-move-group-p
9288 nil nil
9289 'gnus-group-history))
9290 (t
9291 (gnus-completing-read nil prom
9292 (mapcar (lambda (el) (list el))
9293 (nreverse split-name))
9294 nil nil nil
16409b0b
GM		 9295 'gnus-group-history))))
9296 (to-method (gnus-server-to-method (gnus-group-method to-newsgroup))))
eec82323
LMI		 9297 (when to-newsgroup
9298 (if (or (string= to-newsgroup "")
9299 (string= to-newsgroup prefix))
9300 (setq to-newsgroup default))
9301 (unless to-newsgroup
9302 (error "No group name entered"))
9303 (or (gnus-active to-newsgroup)
16409b0b 9304 (gnus-activate-group to-newsgroup nil nil to-method)
eec82323
LMI		 9305 (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
9306 to-newsgroup))
16409b0b
GM		 9307 (or (and (gnus-request-create-group to-newsgroup to-method)
9308 (gnus-activate-group
9309 to-newsgroup nil nil to-method)
9310 (gnus-subscribe-group to-newsgroup))
eec82323
LMI		 9311 (error "Couldn't create group %s" to-newsgroup)))
9312 (error "No such group: %s" to-newsgroup)))
9313 to-newsgroup))
9314
16409b0b
GM		 9315(defun gnus-summary-save-parts (type dir n &optional reverse)
9316 "Save parts matching TYPE to DIR.
9317If REVERSE, save parts that do not match TYPE."
9318 (interactive
8b93df01
DL		 9319 (list (read-string "Save parts of type: "
9320 (or (car gnus-summary-save-parts-type-history)
9321 gnus-summary-save-parts-default-mime)
9322 'gnus-summary-save-parts-type-history)
9323 (setq gnus-summary-save-parts-last-directory
9324 (read-file-name "Save to directory: "
9325 gnus-summary-save-parts-last-directory
9326 nil t))
16409b0b
GM		 9327 current-prefix-arg))
9328 (gnus-summary-iterate n
9329 (let ((gnus-display-mime-function nil)
9330 (gnus-inhibit-treatment t))
9331 (gnus-summary-select-article))
9332 (save-excursion
9333 (set-buffer gnus-article-buffer)
9334 (let ((handles (or gnus-article-mime-handles
9335 (mm-dissect-buffer) (mm-uu-dissect))))
9336 (when handles
9337 (gnus-summary-save-parts-1 type dir handles reverse)
9338 (unless gnus-article-mime-handles ;; Don't destroy this case.
9339 (mm-destroy-parts handles)))))))
9340
9341(defun gnus-summary-save-parts-1 (type dir handle reverse)
9342 (if (stringp (car handle))
9343 (mapcar (lambda (h) (gnus-summary-save-parts-1 type dir h reverse))
9344 (cdr handle))
9345 (when (if reverse
9346 (not (string-match type (mm-handle-media-type handle)))
9347 (string-match type (mm-handle-media-type handle)))
9348 (let ((file (expand-file-name
9349 (file-name-nondirectory
9350 (or
9351 (mail-content-type-get
9352 (mm-handle-disposition handle) 'filename)
9353 (concat gnus-newsgroup-name
9354 "." (number-to-string
9355 (cdr gnus-article-current)))))
9356 dir)))
9357 (unless (file-exists-p file)
9358 (mm-save-part-to-file handle file))))))
9359
eec82323
LMI		 9360;; Summary extract commands
9361
9362(defun gnus-summary-insert-pseudos (pslist &optional not-view)
9363 (let ((buffer-read-only nil)
9364 (article (gnus-summary-article-number))
9365 after-article b e)
9366 (unless (gnus-summary-goto-subject article)
9367 (error "No such article: %d" article))
9368 (gnus-summary-position-point)
9369 ;; If all commands are to be bunched up on one line, we collect
9370 ;; them here.
9371 (unless gnus-view-pseudos-separately
9372 (let ((ps (setq pslist (sort pslist 'gnus-pseudos<)))
9373 files action)
9374 (while ps
9375 (setq action (cdr (assq 'action (car ps))))
9376 (setq files (list (cdr (assq 'name (car ps)))))
9377 (while (and ps (cdr ps)
9378 (string= (or action "1")
9379 (or (cdr (assq 'action (cadr ps))) "2")))
9380 (push (cdr (assq 'name (cadr ps))) files)
9381 (setcdr ps (cddr ps)))
9382 (when files
9383 (when (not (string-match "%s" action))
9384 (push " " files))
9385 (push " " files)
9386 (when (assq 'execute (car ps))
9387 (setcdr (assq 'execute (car ps))
9388 (funcall (if (string-match "%s" action)
9389 'format 'concat)
9390 action
9391 (mapconcat
9392 (lambda (f)
9393 (if (equal f " ")
9394 f
16409b0b 9395 (mm-quote-arg f)))
eec82323
LMI		 9396 files " ")))))
9397 (setq ps (cdr ps)))))
9398 (if (and gnus-view-pseudos (not not-view))
9399 (while pslist
9400 (when (assq 'execute (car pslist))
9401 (gnus-execute-command (cdr (assq 'execute (car pslist)))
9402 (eq gnus-view-pseudos 'not-confirm)))
9403 (setq pslist (cdr pslist)))
9404 (save-excursion
9405 (while pslist
9406 (setq after-article (or (cdr (assq 'article (car pslist)))
9407 (gnus-summary-article-number)))
9408 (gnus-summary-goto-subject after-article)
9409 (forward-line 1)
9410 (setq b (point))
9411 (insert " " (file-name-nondirectory
9412 (cdr (assq 'name (car pslist))))
9413 ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
9414 (setq e (point))
9415 (forward-line -1) ; back to `b'
9416 (gnus-add-text-properties
9417 b (1- e) (list 'gnus-number gnus-reffed-article-number
9418 gnus-mouse-face-prop gnus-mouse-face))
9419 (gnus-data-enter
9420 after-article gnus-reffed-article-number
9421 gnus-unread-mark b (car pslist) 0 (- e b))
9422 (push gnus-reffed-article-number gnus-newsgroup-unreads)
9423 (setq gnus-reffed-article-number (1- gnus-reffed-article-number))
9424 (setq pslist (cdr pslist)))))))
9425
9426(defun gnus-pseudos< (p1 p2)
9427 (let ((c1 (cdr (assq 'action p1)))
9428 (c2 (cdr (assq 'action p2))))
9429 (and c1 c2 (string< c1 c2))))
9430
9431(defun gnus-request-pseudo-article (props)
9432 (cond ((assq 'execute props)
9433 (gnus-execute-command (cdr (assq 'execute props)))))
9434 (let ((gnus-current-article (gnus-summary-article-number)))
6748645f 9435 (gnus-run-hooks 'gnus-mark-article-hook)))
eec82323
LMI		 9436
9437(defun gnus-execute-command (command &optional automatic)
9438 (save-excursion
9439 (gnus-article-setup-buffer)
9440 (set-buffer gnus-article-buffer)
9441 (setq buffer-read-only nil)
a8151ef7
LMI		 9442 (let ((command (if automatic command
9443 (read-string "Command: " (cons command 0)))))
eec82323
LMI		 9444 (erase-buffer)
9445 (insert "$ " command "\n\n")
9446 (if gnus-view-pseudo-asynchronously
9447 (start-process "gnus-execute" (current-buffer) shell-file-name
9448 shell-command-switch command)
9449 (call-process shell-file-name nil t nil
9450 shell-command-switch command)))))
9451
9452;; Summary kill commands.
9453
9454(defun gnus-summary-edit-global-kill (article)
9455 "Edit the \"global\" kill file."
9456 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 9457 (gnus-group-edit-global-kill article))
9458
9459(defun gnus-summary-edit-local-kill ()
9460 "Edit a local kill file applied to the current newsgroup."
9461 (interactive)
eec82323 9462 (setq gnus-current-headers (gnus-summary-article-header))
eec82323
LMI		 9463 (gnus-group-edit-local-kill
9464 (gnus-summary-article-number) gnus-newsgroup-name))
9465
9466;;; Header reading.
9467
9468(defun gnus-read-header (id &optional header)
9469 "Read the headers of article ID and enter them into the Gnus system."
9470 (let ((group gnus-newsgroup-name)
9471 (gnus-override-method
16409b0b
GM		 9472 (or
9473 gnus-override-method
9474 (and (gnus-news-group-p gnus-newsgroup-name)
9475 (car (gnus-refer-article-methods)))))
eec82323
LMI		 9476 where)
9477 ;; First we check to see whether the header in question is already
9478 ;; fetched.
9479 (if (stringp id)
9480 ;; This is a Message-ID.
9481 (setq header (or header (gnus-id-to-header id)))
9482 ;; This is an article number.
9483 (setq header (or header (gnus-summary-article-header id))))
9484 (if (and header
9485 (not (gnus-summary-article-sparse-p (mail-header-number header))))
9486 ;; We have found the header.
9487 header
6748645f
LMI		 9488 ;; If this is a sparse article, we have to nix out its
9489 ;; previous entry in the thread hashtb.
9490 (when (and header
9491 (gnus-summary-article-sparse-p (mail-header-number header)))
9492 (let* ((parent (gnus-parent-id (mail-header-references header)))
9493 (thread (and parent (gnus-id-to-thread parent))))
9494 (when thread
9495 (delq (assq header thread) thread))))
eec82323
LMI		 9496 ;; We have to really fetch the header to this article.
9497 (save-excursion
9498 (set-buffer nntp-server-buffer)
9499 (when (setq where (gnus-request-head id group))
9500 (nnheader-fold-continuation-lines)
9501 (goto-char (point-max))
9502 (insert ".\n")
9503 (goto-char (point-min))
9504 (insert "211 ")
9505 (princ (cond
9506 ((numberp id) id)
9507 ((cdr where) (cdr where))
9508 (header (mail-header-number header))
9509 (t gnus-reffed-article-number))
9510 (current-buffer))
9511 (insert " Article retrieved.\n"))
9512 (if (or (not where)
9513 (not (setq header (car (gnus-get-newsgroup-headers nil t)))))
9514 () ; Malformed head.
9515 (unless (gnus-summary-article-sparse-p (mail-header-number header))
9516 (when (and (stringp id)
9517 (not (string= (gnus-group-real-name group)
9518 (car where))))
9519 ;; If we fetched by Message-ID and the article came
9520 ;; from a different group, we fudge some bogus article
9521 ;; numbers for this article.
9522 (mail-header-set-number header gnus-reffed-article-number))
9523 (save-excursion
9524 (set-buffer gnus-summary-buffer)
9525 (decf gnus-reffed-article-number)
9526 (gnus-remove-header (mail-header-number header))
9527 (push header gnus-newsgroup-headers)
9528 (setq gnus-current-headers header)
9529 (push (mail-header-number header) gnus-newsgroup-limit)))
9530 header)))))
9531
9532(defun gnus-remove-header (number)
9533 "Remove header NUMBER from `gnus-newsgroup-headers'."
9534 (if (and gnus-newsgroup-headers
9535 (= number (mail-header-number (car gnus-newsgroup-headers))))
9536 (pop gnus-newsgroup-headers)
9537 (let ((headers gnus-newsgroup-headers))
9538 (while (and (cdr headers)
9539 (not (= number (mail-header-number (cadr headers)))))
9540 (pop headers))
9541 (when (cdr headers)
9542 (setcdr headers (cddr headers))))))
9543
9544;;;
9545;;; summary highlights
9546;;;
9547
9548(defun gnus-highlight-selected-summary ()
16409b0b 9549 "Highlight selected article in summary buffer."
eec82323 9550 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
eec82323
LMI		 9551 (when gnus-summary-selected-face
9552 (save-excursion
9553 (let* ((beg (progn (beginning-of-line) (point)))
9554 (end (progn (end-of-line) (point)))
9555 ;; Fix by Mike Dugan <dugan@bucrf16.bu.edu>.
9556 (from (if (get-text-property beg gnus-mouse-face-prop)
9557 beg
9558 (or (next-single-property-change
9559 beg gnus-mouse-face-prop nil end)
9560 beg)))
9561 (to
9562 (if (= from end)
9563 (- from 2)
9564 (or (next-single-property-change
9565 from gnus-mouse-face-prop nil end)
9566 end))))
9567 ;; If no mouse-face prop on line we will have to = from = end,
9568 ;; so we highlight the entire line instead.
9569 (when (= (+ to 2) from)
9570 (setq from beg)
9571 (setq to end))
9572 (if gnus-newsgroup-selected-overlay
9573 ;; Move old overlay.
9574 (gnus-move-overlay
9575 gnus-newsgroup-selected-overlay from to (current-buffer))
9576 ;; Create new overlay.
9577 (gnus-overlay-put
9578 (setq gnus-newsgroup-selected-overlay (gnus-make-overlay from to))
9579 'face gnus-summary-selected-face))))))
9580
9581;; New implementation by Christian Limpach <Christian.Limpach@nice.ch>.
9582(defun gnus-summary-highlight-line ()
9583 "Highlight current line according to `gnus-summary-highlight'."
9584 (let* ((list gnus-summary-highlight)
9585 (p (point))
9586 (end (progn (end-of-line) (point)))
9587 ;; now find out where the line starts and leave point there.
9588 (beg (progn (beginning-of-line) (point)))
9589 (article (gnus-summary-article-number))
9590 (score (or (cdr (assq (or article gnus-current-article)
9591 gnus-newsgroup-scored))
9592 gnus-summary-default-score 0))
9593 (mark (or (gnus-summary-article-mark) gnus-unread-mark))
9594 (inhibit-read-only t))
9595 ;; Eval the cars of the lists until we find a match.
9596 (let ((default gnus-summary-default-score))
9597 (while (and list
9598 (not (eval (caar list))))
9599 (setq list (cdr list))))
9600 (let ((face (cdar list)))
9601 (unless (eq face (get-text-property beg 'face))
6748645f 9602 (gnus-put-text-property-excluding-characters-with-faces
eec82323
LMI		 9603 beg end 'face
9604 (setq face (if (boundp face) (symbol-value face) face)))
9605 (when gnus-summary-highlight-line-function
9606 (funcall gnus-summary-highlight-line-function article face))))
9607 (goto-char p)))
9608
6748645f 9609(defun gnus-update-read-articles (group unread &optional compute)
eec82323
LMI		 9610 "Update the list of read articles in GROUP."
9611 (let* ((active (or gnus-newsgroup-active (gnus-active group)))
9612 (entry (gnus-gethash group gnus-newsrc-hashtb))
9613 (info (nth 2 entry))
9614 (prev 1)
9615 (unread (sort (copy-sequence unread) '<))
9616 read)
9617 (if (or (not info) (not active))
9618 ;; There is no info on this group if it was, in fact,
9619 ;; killed. Gnus stores no information on killed groups, so
9620 ;; there's nothing to be done.
9621 ;; One could store the information somewhere temporarily,
9622 ;; perhaps... Hmmm...
9623 ()
9624 ;; Remove any negative articles numbers.
9625 (while (and unread (< (car unread) 0))
9626 (setq unread (cdr unread)))
9627 ;; Remove any expired article numbers
9628 (while (and unread (< (car unread) (car active)))
9629 (setq unread (cdr unread)))
9630 ;; Compute the ranges of read articles by looking at the list of
9631 ;; unread articles.
9632 (while unread
9633 (when (/= (car unread) prev)
9634 (push (if (= prev (1- (car unread))) prev
9635 (cons prev (1- (car unread))))
9636 read))
9637 (setq prev (1+ (car unread)))
9638 (setq unread (cdr unread)))
9639 (when (<= prev (cdr active))
9640 (push (cons prev (cdr active)) read))
16409b0b 9641 (setq read (if (> (length read) 1) (nreverse read) read))
6748645f 9642 (if compute
16409b0b 9643 read
6748645f 9644 (save-excursion
16409b0b
GM		 9645 (let (setmarkundo)
9646 ;; Propagate the read marks to the backend.
9647 (when (gnus-check-backend-function 'request-set-mark group)
9648 (let ((del (gnus-remove-from-range (gnus-info-read info) read))
9649 (add (gnus-remove-from-range read (gnus-info-read info))))
9650 (when (or add del)
9651 (unless (gnus-check-group group)
9652 (error "Can't open server for %s" group))
9653 (gnus-request-set-mark
9654 group (delq nil (list (if add (list add 'add '(read)))
9655 (if del (list del 'del '(read))))))
9656 (setq setmarkundo
9657 `(gnus-request-set-mark
9658 ,group
9659 ',(delq nil (list
9660 (if del (list del 'add '(read)))
9661 (if add (list add 'del '(read))))))))))
9662 (set-buffer gnus-group-buffer)
9663 (gnus-undo-register
9664 `(progn
9665 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
9666 (gnus-info-set-read ',info ',(gnus-info-read info))
9667 (gnus-get-unread-articles-in-group ',info
9668 (gnus-active ,group))
9669 (gnus-group-update-group ,group t)
9670 ,setmarkundo))))
6748645f 9671 ;; Enter this list into the group info.
16409b0b 9672 (gnus-info-set-read info read)
6748645f
LMI		 9673 ;; Set the number of unread articles in gnus-newsrc-hashtb.
9674 (gnus-get-unread-articles-in-group info (gnus-active group))
9675 t))))
eec82323
LMI		 9676
9677(defun gnus-offer-save-summaries ()
9678 "Offer to save all active summary buffers."
9679 (save-excursion
9680 (let ((buflist (buffer-list))
9681 buffers bufname)
9682 ;; Go through all buffers and find all summaries.
9683 (while buflist
9684 (and (setq bufname (buffer-name (car buflist)))
9685 (string-match "Summary" bufname)
9686 (save-excursion
9687 (set-buffer bufname)
9688 ;; We check that this is, indeed, a summary buffer.
9689 (and (eq major-mode 'gnus-summary-mode)
9690 ;; Also make sure this isn't bogus.
9691 gnus-newsgroup-prepared
9692 ;; Also make sure that this isn't a dead summary buffer.
9693 (not gnus-dead-summary-mode)))
9694 (push bufname buffers))
9695 (setq buflist (cdr buflist)))
9696 ;; Go through all these summary buffers and offer to save them.
9697 (when buffers
9698 (map-y-or-n-p
9699 "Update summary buffer %s? "
6748645f
LMI		 9700 (lambda (buf)
9701 (switch-to-buffer buf)
9702 (gnus-summary-exit))
eec82323
LMI		 9703 buffers)))))
9704
16409b0b
GM		 9705(defun gnus-summary-setup-default-charset ()
9706 "Setup newsgroup default charset."
9707 (if (equal gnus-newsgroup-name "nndraft:drafts")
9708 (setq gnus-newsgroup-charset nil)
9709 (let* ((name (and gnus-newsgroup-name
9710 (gnus-group-real-name gnus-newsgroup-name)))
9711 (ignored-charsets
9712 (or gnus-newsgroup-ephemeral-ignored-charsets
9713 (append
9714 (and gnus-newsgroup-name
9715 (or (gnus-group-find-parameter gnus-newsgroup-name
9716 'ignored-charsets t)
9717 (let ((alist gnus-group-ignored-charsets-alist)
9718 elem (charsets nil))
9719 (while (setq elem (pop alist))
9720 (when (and name
9721 (string-match (car elem) name))
9722 (setq alist nil
9723 charsets (cdr elem))))
9724 charsets)))
9725 gnus-newsgroup-ignored-charsets))))
9726 (setq gnus-newsgroup-charset
9727 (or gnus-newsgroup-ephemeral-charset
9728 (and gnus-newsgroup-name
9729 (or (gnus-group-find-parameter gnus-newsgroup-name 'charset)
9730 (let ((alist gnus-group-charset-alist)
9731 elem charset)
9732 (while (setq elem (pop alist))
9733 (when (and name
9734 (string-match (car elem) name))
9735 (setq alist nil
9736 charset (cadr elem))))
9737 charset)))
9738 gnus-default-charset))
9739 (set (make-local-variable 'gnus-newsgroup-ignored-charsets)
9740 ignored-charsets))))
9741
9742;;;
9743;;; Mime Commands
9744;;;
9745
9746(defun gnus-summary-display-buttonized (&optional show-all-parts)
9747 "Display the current article buffer fully MIME-buttonized.
9748If SHOW-ALL-PARTS (the prefix) is non-nil, all multipart/* parts are
9749treated as multipart/mixed."
9750 (interactive "P")
9751 (require 'gnus-art)
9752 (let ((gnus-unbuttonized-mime-types nil)
9753 (gnus-mime-display-multipart-as-mixed show-all-parts))
9754 (gnus-summary-show-article)))
9755
9756(defun gnus-summary-repair-multipart (article)
9757 "Add a Content-Type header to a multipart article without one."
9758 (interactive (list (gnus-summary-article-number)))
9759 (gnus-with-article article
9760 (message-narrow-to-head)
9761 (goto-char (point-max))
9762 (widen)
9763 (when (search-forward "\n--" nil t)
9764 (let ((separator (buffer-substring (point) (gnus-point-at-eol))))
9765 (message-narrow-to-head)
9766 (message-remove-header "Mime-Version")
9767 (message-remove-header "Content-Type")
9768 (goto-char (point-max))
9769 (insert (format "Content-Type: multipart/mixed; boundary=\"%s\"\n"
9770 separator))
9771 (insert "Mime-Version: 1.0\n")
9772 (widen))))
9773 (let (gnus-mark-article-hook)
9774 (gnus-summary-select-article t t nil article)))
9775
9776(defun gnus-summary-toggle-display-buttonized ()
9777 "Toggle the buttonizing of the article buffer."
9778 (interactive)
9779 (require 'gnus-art)
9780 (if (setq gnus-inhibit-mime-unbuttonizing
9781 (not gnus-inhibit-mime-unbuttonizing))
9782 (let ((gnus-unbuttonized-mime-types nil))
9783 (gnus-summary-show-article))
9784 (gnus-summary-show-article)))
9785
9786;;;
9787;;; Generic summary marking commands
9788;;;
9789
9790(defvar gnus-summary-marking-alist
9791 '((read gnus-del-mark "d")
9792 (unread gnus-unread-mark "u")
9793 (ticked gnus-ticked-mark "!")
9794 (dormant gnus-dormant-mark "?")
9795 (expirable gnus-expirable-mark "e"))
9796 "An alist of names/marks/keystrokes.")
9797
9798(defvar gnus-summary-generic-mark-map (make-sparse-keymap))
9799(defvar gnus-summary-mark-map)
9800
9801(defun gnus-summary-make-all-marking-commands ()
9802 (define-key gnus-summary-mark-map "M" gnus-summary-generic-mark-map)
9803 (dolist (elem gnus-summary-marking-alist)
9804 (apply 'gnus-summary-make-marking-command elem)))
9805
9806(defun gnus-summary-make-marking-command (name mark keystroke)
9807 (let ((map (make-sparse-keymap)))
9808 (define-key gnus-summary-generic-mark-map keystroke map)
9809 (dolist (lway `((next "next" next nil "n")
9810 (next-unread "next unread" next t "N")
9811 (prev "previous" prev nil "p")
9812 (prev-unread "previous unread" prev t "P")
9813 (nomove "" nil nil ,keystroke)))
9814 (let ((func (gnus-summary-make-marking-command-1
9815 mark (car lway) lway name)))
9816 (setq func (eval func))
9817 (define-key map (nth 4 lway) func)))))
9818
9819(defun gnus-summary-make-marking-command-1 (mark way lway name)
9820 `(defun ,(intern
9821 (format "gnus-summary-put-mark-as-%s%s"
9822 name (if (eq way 'nomove)
9823 ""
9824 (concat "-" (symbol-name way)))))
9825 (n)
9826 ,(format
9827 "Mark the current article as %s%s.
9828If N, the prefix, then repeat N times.
9829If N is negative, move in reverse order.
9830The difference between N and the actual number of articles marked is
9831returned."
9832 name (cadr lway))
9833 (interactive "p")
9834 (gnus-summary-generic-mark n ,mark ',(nth 2 lway) ,(nth 3 lway))))
9835
9836(defun gnus-summary-generic-mark (n mark move unread)
9837 "Mark N articles with MARK."
9838 (unless (eq major-mode 'gnus-summary-mode)
9839 (error "This command can only be used in the summary buffer"))
9840 (gnus-summary-show-thread)
9841 (let ((nummove
9842 (cond
9843 ((eq move 'next) 1)
9844 ((eq move 'prev) -1)
9845 (t 0))))
9846 (if (zerop nummove)
9847 (setq n 1)
9848 (when (< n 0)
9849 (setq n (abs n)
9850 nummove (* -1 nummove))))
9851 (while (and (> n 0)
9852 (gnus-summary-mark-article nil mark)
9853 (zerop (gnus-summary-next-subject nummove unread t)))
9854 (setq n (1- n)))
9855 (when (/= 0 n)
9856 (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
9857 (gnus-summary-recenter)
9858 (gnus-summary-position-point)
9859 (gnus-set-mode-line 'summary)
9860 n))
9861
9862(gnus-summary-make-all-marking-commands)
9863
a8151ef7
LMI		 9864(gnus-ems-redefine)
9865
eec82323
LMI		 9866(provide 'gnus-sum)
9867
9868(run-hooks 'gnus-sum-load-hook)
9869
9870;;; gnus-sum.el ends here
Unnamed repository; edit this file 'description' to name the repository.