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(viper-fast-keyseq-timeout, viper-translate-all-ESC-keysequences): Doc fix.
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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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."
894 :type 'function
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
1318(when t
1319 ;; Non-orthogonal keys
1320
1321 (gnus-define-keys gnus-summary-mode-map
1322 " " gnus-summary-next-page
1323 "\177" gnus-summary-prev-page
1324 [delete] gnus-summary-prev-page
6748645f 1325 [backspace] gnus-summary-prev-page
eec82323 1326 "\r" gnus-summary-scroll-up
6748645f 1327 "\M-\r" gnus-summary-scroll-down
eec82323
LMI		 1328 "n" gnus-summary-next-unread-article
1329 "p" gnus-summary-prev-unread-article
1330 "N" gnus-summary-next-article
1331 "P" gnus-summary-prev-article
1332 "\M-\C-n" gnus-summary-next-same-subject
1333 "\M-\C-p" gnus-summary-prev-same-subject
1334 "\M-n" gnus-summary-next-unread-subject
1335 "\M-p" gnus-summary-prev-unread-subject
1336 "." gnus-summary-first-unread-article
1337 "," gnus-summary-best-unread-article
1338 "\M-s" gnus-summary-search-article-forward
1339 "\M-r" gnus-summary-search-article-backward
1340 "<" gnus-summary-beginning-of-article
1341 ">" gnus-summary-end-of-article
1342 "j" gnus-summary-goto-article
1343 "^" gnus-summary-refer-parent-article
1344 "\M-^" gnus-summary-refer-article
1345 "u" gnus-summary-tick-article-forward
1346 "!" gnus-summary-tick-article-forward
1347 "U" gnus-summary-tick-article-backward
1348 "d" gnus-summary-mark-as-read-forward
1349 "D" gnus-summary-mark-as-read-backward
1350 "E" gnus-summary-mark-as-expirable
1351 "\M-u" gnus-summary-clear-mark-forward
1352 "\M-U" gnus-summary-clear-mark-backward
1353 "k" gnus-summary-kill-same-subject-and-select
1354 "\C-k" gnus-summary-kill-same-subject
1355 "\M-\C-k" gnus-summary-kill-thread
1356 "\M-\C-l" gnus-summary-lower-thread
1357 "e" gnus-summary-edit-article
1358 "#" gnus-summary-mark-as-processable
1359 "\M-#" gnus-summary-unmark-as-processable
1360 "\M-\C-t" gnus-summary-toggle-threads
1361 "\M-\C-s" gnus-summary-show-thread
1362 "\M-\C-h" gnus-summary-hide-thread
1363 "\M-\C-f" gnus-summary-next-thread
1364 "\M-\C-b" gnus-summary-prev-thread
16409b0b
GM		 1365 [(meta down)] gnus-summary-next-thread
1366 [(meta up)] gnus-summary-prev-thread
eec82323
LMI		 1367 "\M-\C-u" gnus-summary-up-thread
1368 "\M-\C-d" gnus-summary-down-thread
1369 "&" gnus-summary-execute-command
1370 "c" gnus-summary-catchup-and-exit
1371 "\C-w" gnus-summary-mark-region-as-read
1372 "\C-t" gnus-summary-toggle-truncation
1373 "?" gnus-summary-mark-as-dormant
1374 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1375 "\C-c\C-s\C-n" gnus-summary-sort-by-number
1376 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
16409b0b 1377 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
eec82323
LMI		 1378 "\C-c\C-s\C-a" gnus-summary-sort-by-author
1379 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1380 "\C-c\C-s\C-d" gnus-summary-sort-by-date
1381 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1382 "=" gnus-summary-expand-window
1383 "\C-x\C-s" gnus-summary-reselect-current-group
1384 "\M-g" gnus-summary-rescan-group
1385 "w" gnus-summary-stop-page-breaking
1386 "\C-c\C-r" gnus-summary-caesar-message
eec82323
LMI		 1387 "f" gnus-summary-followup
1388 "F" gnus-summary-followup-with-original
1389 "C" gnus-summary-cancel-article
1390 "r" gnus-summary-reply
1391 "R" gnus-summary-reply-with-original
1392 "\C-c\C-f" gnus-summary-mail-forward
1393 "o" gnus-summary-save-article
1394 "\C-o" gnus-summary-save-article-mail
1395 "|" gnus-summary-pipe-output
1396 "\M-k" gnus-summary-edit-local-kill
1397 "\M-K" gnus-summary-edit-global-kill
1398 ;; "V" gnus-version
1399 "\C-c\C-d" gnus-summary-describe-group
1400 "q" gnus-summary-exit
1401 "Q" gnus-summary-exit-no-update
1402 "\C-c\C-i" gnus-info-find-node
1403 gnus-mouse-2 gnus-mouse-pick-article
1404 "m" gnus-summary-mail-other-window
1405 "a" gnus-summary-post-news
1406 "x" gnus-summary-limit-to-unread
1407 "s" gnus-summary-isearch-article
16409b0b 1408 "t" gnus-summary-toggle-header
eec82323
LMI		 1409 "g" gnus-summary-show-article
1410 "l" gnus-summary-goto-last-article
1411 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1412 "\C-d" gnus-summary-enter-digest-group
1413 "\M-\C-d" gnus-summary-read-document
6748645f 1414 "\M-\C-e" gnus-summary-edit-parameters
16409b0b 1415 "\M-\C-a" gnus-summary-customize-parameters
eec82323
LMI		 1416 "\C-c\C-b" gnus-bug
1417 "*" gnus-cache-enter-article
1418 "\M-*" gnus-cache-remove-article
1419 "\M-&" gnus-summary-universal-argument
1420 "\C-l" gnus-recenter
1421 "I" gnus-summary-increase-score
1422 "L" gnus-summary-lower-score
6748645f
LMI		 1423 "\M-i" gnus-symbolic-argument
1424 "h" gnus-summary-select-article-buffer
eec82323 1425
16409b0b
GM		 1426 "b" gnus-article-view-part
1427 "\M-t" gnus-summary-toggle-display-buttonized
1428
eec82323
LMI		 1429 "V" gnus-summary-score-map
1430 "X" gnus-uu-extract-map
1431 "S" gnus-summary-send-map)
1432
1433 ;; Sort of orthogonal keymap
1434 (gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1435 "t" gnus-summary-tick-article-forward
1436 "!" gnus-summary-tick-article-forward
1437 "d" gnus-summary-mark-as-read-forward
1438 "r" gnus-summary-mark-as-read-forward
1439 "c" gnus-summary-clear-mark-forward
1440 " " gnus-summary-clear-mark-forward
1441 "e" gnus-summary-mark-as-expirable
1442 "x" gnus-summary-mark-as-expirable
1443 "?" gnus-summary-mark-as-dormant
1444 "b" gnus-summary-set-bookmark
1445 "B" gnus-summary-remove-bookmark
1446 "#" gnus-summary-mark-as-processable
1447 "\M-#" gnus-summary-unmark-as-processable
1448 "S" gnus-summary-limit-include-expunged
1449 "C" gnus-summary-catchup
1450 "H" gnus-summary-catchup-to-here
1451 "\C-c" gnus-summary-catchup-all
1452 "k" gnus-summary-kill-same-subject-and-select
1453 "K" gnus-summary-kill-same-subject
1454 "P" gnus-uu-mark-map)
1455
1456 (gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1457 "c" gnus-summary-clear-above
1458 "u" gnus-summary-tick-above
1459 "m" gnus-summary-mark-above
1460 "k" gnus-summary-kill-below)
1461
1462 (gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1463 "/" gnus-summary-limit-to-subject
1464 "n" gnus-summary-limit-to-articles
1465 "w" gnus-summary-pop-limit
1466 "s" gnus-summary-limit-to-subject
1467 "a" gnus-summary-limit-to-author
1468 "u" gnus-summary-limit-to-unread
1469 "m" gnus-summary-limit-to-marks
16409b0b 1470 "M" gnus-summary-limit-exclude-marks
eec82323 1471 "v" gnus-summary-limit-to-score
6748645f 1472 "*" gnus-summary-limit-include-cached
eec82323 1473 "D" gnus-summary-limit-include-dormant
6748645f 1474 "T" gnus-summary-limit-include-thread
eec82323
LMI		 1475 "d" gnus-summary-limit-exclude-dormant
1476 "t" gnus-summary-limit-to-age
16409b0b 1477 "x" gnus-summary-limit-to-extra
eec82323
LMI		 1478 "E" gnus-summary-limit-include-expunged
1479 "c" gnus-summary-limit-exclude-childless-dormant
1480 "C" gnus-summary-limit-mark-excluded-as-read)
1481
1482 (gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1483 "n" gnus-summary-next-unread-article
1484 "p" gnus-summary-prev-unread-article
1485 "N" gnus-summary-next-article
1486 "P" gnus-summary-prev-article
1487 "\C-n" gnus-summary-next-same-subject
1488 "\C-p" gnus-summary-prev-same-subject
1489 "\M-n" gnus-summary-next-unread-subject
1490 "\M-p" gnus-summary-prev-unread-subject
1491 "f" gnus-summary-first-unread-article
1492 "b" gnus-summary-best-unread-article
1493 "j" gnus-summary-goto-article
1494 "g" gnus-summary-goto-subject
1495 "l" gnus-summary-goto-last-article
a8151ef7 1496 "o" gnus-summary-pop-article)
eec82323
LMI		 1497
1498 (gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1499 "k" gnus-summary-kill-thread
1500 "l" gnus-summary-lower-thread
1501 "i" gnus-summary-raise-thread
1502 "T" gnus-summary-toggle-threads
1503 "t" gnus-summary-rethread-current
1504 "^" gnus-summary-reparent-thread
1505 "s" gnus-summary-show-thread
1506 "S" gnus-summary-show-all-threads
1507 "h" gnus-summary-hide-thread
1508 "H" gnus-summary-hide-all-threads
1509 "n" gnus-summary-next-thread
1510 "p" gnus-summary-prev-thread
1511 "u" gnus-summary-up-thread
1512 "o" gnus-summary-top-thread
1513 "d" gnus-summary-down-thread
1514 "#" gnus-uu-mark-thread
1515 "\M-#" gnus-uu-unmark-thread)
1516
1517 (gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1518 "g" gnus-summary-prepare
1519 "c" gnus-summary-insert-cached-articles)
1520
1521 (gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1522 "c" gnus-summary-catchup-and-exit
1523 "C" gnus-summary-catchup-all-and-exit
1524 "E" gnus-summary-exit-no-update
1525 "Q" gnus-summary-exit
1526 "Z" gnus-summary-exit
1527 "n" gnus-summary-catchup-and-goto-next-group
1528 "R" gnus-summary-reselect-current-group
1529 "G" gnus-summary-rescan-group
1530 "N" gnus-summary-next-group
1531 "s" gnus-summary-save-newsrc
1532 "P" gnus-summary-prev-group)
1533
1534 (gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
1535 " " gnus-summary-next-page
1536 "n" gnus-summary-next-page
1537 "\177" gnus-summary-prev-page
1538 [delete] gnus-summary-prev-page
1539 "p" gnus-summary-prev-page
1540 "\r" gnus-summary-scroll-up
6748645f 1541 "\M-\r" gnus-summary-scroll-down
eec82323
LMI		 1542 "<" gnus-summary-beginning-of-article
1543 ">" gnus-summary-end-of-article
1544 "b" gnus-summary-beginning-of-article
1545 "e" gnus-summary-end-of-article
1546 "^" gnus-summary-refer-parent-article
1547 "r" gnus-summary-refer-parent-article
16409b0b 1548 "D" gnus-summary-enter-digest-group
eec82323 1549 "R" gnus-summary-refer-references
6748645f 1550 "T" gnus-summary-refer-thread
eec82323
LMI		 1551 "g" gnus-summary-show-article
1552 "s" gnus-summary-isearch-article
16409b0b
GM		 1553 "P" gnus-summary-print-article
1554 "t" gnus-article-babel)
eec82323
LMI		 1555
1556 (gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
1557 "b" gnus-article-add-buttons
1558 "B" gnus-article-add-buttons-to-head
1559 "o" gnus-article-treat-overstrike
1560 "e" gnus-article-emphasize
1561 "w" gnus-article-fill-cited-article
16409b0b
GM		 1562 "Q" gnus-article-fill-long-lines
1563 "C" gnus-article-capitalize-sentences
eec82323
LMI		 1564 "c" gnus-article-remove-cr
1565 "q" gnus-article-de-quoted-unreadable
16409b0b
GM		 1566 "6" gnus-article-de-base64-unreadable
1567 "Z" gnus-article-decode-HZ
1568 "h" gnus-article-wash-html
eec82323
LMI		 1569 "f" gnus-article-display-x-face
1570 "l" gnus-summary-stop-page-breaking
1571 "r" gnus-summary-caesar-message
16409b0b 1572 "t" gnus-summary-toggle-header
eec82323 1573 "v" gnus-summary-verbose-headers
16409b0b 1574 "H" gnus-article-strip-headers-in-body
6748645f 1575 "d" gnus-article-treat-dumbquotes)
eec82323
LMI		 1576
1577 (gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
1578 "a" gnus-article-hide
1579 "h" gnus-article-hide-headers
1580 "b" gnus-article-hide-boring-headers
1581 "s" gnus-article-hide-signature
1582 "c" gnus-article-hide-citation
6748645f 1583 "C" gnus-article-hide-citation-in-followups
16409b0b 1584 "l" gnus-article-hide-list-identifiers
eec82323 1585 "p" gnus-article-hide-pgp
16409b0b 1586 "B" gnus-article-strip-banner
eec82323
LMI		 1587 "P" gnus-article-hide-pem
1588 "\C-c" gnus-article-hide-citation-maybe)
1589
1590 (gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
1591 "a" gnus-article-highlight
1592 "h" gnus-article-highlight-headers
1593 "c" gnus-article-highlight-citation
1594 "s" gnus-article-highlight-signature)
1595
16409b0b
GM		 1596 (gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
1597 "w" gnus-article-decode-mime-words
1598 "c" gnus-article-decode-charset
1599 "v" gnus-mime-view-all-parts
1600 "b" gnus-article-view-part)
1601
eec82323
LMI		 1602 (gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
1603 "z" gnus-article-date-ut
1604 "u" gnus-article-date-ut
1605 "l" gnus-article-date-local
1606 "e" gnus-article-date-lapsed
1607 "o" gnus-article-date-original
6748645f 1608 "i" gnus-article-date-iso8601
eec82323
LMI		 1609 "s" gnus-article-date-user)
1610
1611 (gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
1612 "t" gnus-article-remove-trailing-blank-lines
1613 "l" gnus-article-strip-leading-blank-lines
1614 "m" gnus-article-strip-multiple-blank-lines
1615 "a" gnus-article-strip-blank-lines
6748645f 1616 "A" gnus-article-strip-all-blank-lines
16409b0b
GM		 1617 "s" gnus-article-strip-leading-space
1618 "e" gnus-article-strip-trailing-space)
eec82323
LMI		 1619
1620 (gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
1621 "v" gnus-version
1622 "f" gnus-summary-fetch-faq
1623 "d" gnus-summary-describe-group
1624 "h" gnus-summary-describe-briefly
1625 "i" gnus-info-find-node)
1626
1627 (gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
1628 "e" gnus-summary-expire-articles
1629 "\M-\C-e" gnus-summary-expire-articles-now
1630 "\177" gnus-summary-delete-article
1631 [delete] gnus-summary-delete-article
16409b0b 1632 [backspace] gnus-summary-delete-article
eec82323
LMI		 1633 "m" gnus-summary-move-article
1634 "r" gnus-summary-respool-article
1635 "w" gnus-summary-edit-article
1636 "c" gnus-summary-copy-article
1637 "B" gnus-summary-crosspost-article
1638 "q" gnus-summary-respool-query
6748645f 1639 "t" gnus-summary-respool-trace
eec82323
LMI		 1640 "i" gnus-summary-import-article
1641 "p" gnus-summary-article-posted-p)
1642
1643 (gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
1644 "o" gnus-summary-save-article
1645 "m" gnus-summary-save-article-mail
1646 "F" gnus-summary-write-article-file
1647 "r" gnus-summary-save-article-rmail
1648 "f" gnus-summary-save-article-file
1649 "b" gnus-summary-save-article-body-file
1650 "h" gnus-summary-save-article-folder
1651 "v" gnus-summary-save-article-vm
1652 "p" gnus-summary-pipe-output
16409b0b
GM		 1653 "s" gnus-soup-add-article)
1654
1655 (gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
1656 "b" gnus-summary-display-buttonized
1657 "m" gnus-summary-repair-multipart
1658 "v" gnus-article-view-part
1659 "o" gnus-article-save-part
1660 "c" gnus-article-copy-part
1661 "e" gnus-article-externalize-part
1662 "i" gnus-article-inline-part
1663 "|" gnus-article-pipe-part))
eec82323
LMI		 1664
1665(defun gnus-summary-make-menu-bar ()
1666 (gnus-turn-off-edit-menu 'summary)
1667
1668 (unless (boundp 'gnus-summary-misc-menu)
1669
1670 (easy-menu-define
1671 gnus-summary-kill-menu gnus-summary-mode-map ""
1672 (cons
1673 "Score"
1674 (nconc
1675 (list
1676 ["Enter score..." gnus-summary-score-entry t]
1677 ["Customize" gnus-score-customize t])
1678 (gnus-make-score-map 'increase)
1679 (gnus-make-score-map 'lower)
1680 '(("Mark"
1681 ["Kill below" gnus-summary-kill-below t]
1682 ["Mark above" gnus-summary-mark-above t]
1683 ["Tick above" gnus-summary-tick-above t]
1684 ["Clear above" gnus-summary-clear-above t])
1685 ["Current score" gnus-summary-current-score t]
1686 ["Set score" gnus-summary-set-score t]
1687 ["Switch current score file..." gnus-score-change-score-file t]
1688 ["Set mark below..." gnus-score-set-mark-below t]
1689 ["Set expunge below..." gnus-score-set-expunge-below t]
1690 ["Edit current score file" gnus-score-edit-current-scores t]
1691 ["Edit score file" gnus-score-edit-file t]
1692 ["Trace score" gnus-score-find-trace t]
1693 ["Find words" gnus-score-find-favourite-words t]
1694 ["Rescore buffer" gnus-summary-rescore t]
1695 ["Increase score..." gnus-summary-increase-score t]
1696 ["Lower score..." gnus-summary-lower-score t]))))
1697
6748645f
LMI		 1698 ;; Define both the Article menu in the summary buffer and the equivalent
1699 ;; Commands menu in the article buffer here for consistency.
1700 (let ((innards
1701 '(("Hide"
1702 ["All" gnus-article-hide t]
1703 ["Headers" gnus-article-hide-headers t]
1704 ["Signature" gnus-article-hide-signature t]
1705 ["Citation" gnus-article-hide-citation t]
16409b0b 1706 ["List identifiers" gnus-article-hide-list-identifiers t]
6748645f 1707 ["PGP" gnus-article-hide-pgp t]
16409b0b 1708 ["Banner" gnus-article-strip-banner t]
6748645f
LMI		 1709 ["Boring headers" gnus-article-hide-boring-headers t])
1710 ("Highlight"
1711 ["All" gnus-article-highlight t]
1712 ["Headers" gnus-article-highlight-headers t]
1713 ["Signature" gnus-article-highlight-signature t]
1714 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM		 1715 ("MIME"
1716 ["Words" gnus-article-decode-mime-words t]
1717 ["Charset" gnus-article-decode-charset t]
1718 ["QP" gnus-article-de-quoted-unreadable t]
1719 ["Base64" gnus-article-de-base64-unreadable t]
1720 ["View all" gnus-mime-view-all-parts t])
6748645f
LMI		 1721 ("Date"
1722 ["Local" gnus-article-date-local t]
1723 ["ISO8601" gnus-article-date-iso8601 t]
1724 ["UT" gnus-article-date-ut t]
1725 ["Original" gnus-article-date-original t]
1726 ["Lapsed" gnus-article-date-lapsed t]
1727 ["User-defined" gnus-article-date-user t])
1728 ("Washing"
1729 ("Remove Blanks"
1730 ["Leading" gnus-article-strip-leading-blank-lines t]
1731 ["Multiple" gnus-article-strip-multiple-blank-lines t]
1732 ["Trailing" gnus-article-remove-trailing-blank-lines t]
1733 ["All of the above" gnus-article-strip-blank-lines t]
1734 ["All" gnus-article-strip-all-blank-lines t]
16409b0b
GM		 1735 ["Leading space" gnus-article-strip-leading-space t]
1736 ["Trailing space" gnus-article-strip-trailing-space t])
6748645f
LMI		 1737 ["Overstrike" gnus-article-treat-overstrike t]
1738 ["Dumb quotes" gnus-article-treat-dumbquotes t]
1739 ["Emphasis" gnus-article-emphasize t]
1740 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b
GM		 1741 ["Fill long lines" gnus-article-fill-long-lines t]
1742 ["Capitalize sentences" gnus-article-capitalize-sentences t]
6748645f
LMI		 1743 ["CR" gnus-article-remove-cr t]
1744 ["Show X-Face" gnus-article-display-x-face t]
1745 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
16409b0b 1746 ["Base64" gnus-article-de-base64-unreadable t]
60bd5589
DL		 1747 ["Rot 13" gnus-summary-caesar-message
1748 :help "\"Caesar rotate\" article by 13"]
6748645f
LMI		 1749 ["Unix pipe" gnus-summary-pipe-message t]
1750 ["Add buttons" gnus-article-add-buttons t]
1751 ["Add buttons to head" gnus-article-add-buttons-to-head t]
1752 ["Stop page breaking" gnus-summary-stop-page-breaking t]
6748645f 1753 ["Verbose header" gnus-summary-verbose-headers t]
16409b0b
GM		 1754 ["Toggle header" gnus-summary-toggle-header t]
1755 ["Html" gnus-article-wash-html t]
1756 ["HZ" gnus-article-decode-HZ t])
6748645f 1757 ("Output"
60bd5589
DL		 1758 ["Save in default format" gnus-summary-save-article
1759 :help "Save article using default method"]
1760 ["Save in file" gnus-summary-save-article-file
1761 :help "Save article in file"]
6748645f
LMI		 1762 ["Save in Unix mail format" gnus-summary-save-article-mail t]
1763 ["Save in MH folder" gnus-summary-save-article-folder t]
1764 ["Save in VM folder" gnus-summary-save-article-vm t]
1765 ["Save in RMAIL mbox" gnus-summary-save-article-rmail t]
1766 ["Save body in file" gnus-summary-save-article-body-file t]
1767 ["Pipe through a filter" gnus-summary-pipe-output t]
1768 ["Add to SOUP packet" gnus-soup-add-article t]
1769 ["Print" gnus-summary-print-article t])
1770 ("Backend"
1771 ["Respool article..." gnus-summary-respool-article t]
1772 ["Move article..." gnus-summary-move-article
1773 (gnus-check-backend-function
1774 'request-move-article gnus-newsgroup-name)]
1775 ["Copy article..." gnus-summary-copy-article t]
1776 ["Crosspost article..." gnus-summary-crosspost-article
1777 (gnus-check-backend-function
1778 'request-replace-article gnus-newsgroup-name)]
1779 ["Import file..." gnus-summary-import-article t]
1780 ["Check if posted" gnus-summary-article-posted-p t]
1781 ["Edit article" gnus-summary-edit-article
1782 (not (gnus-group-read-only-p))]
1783 ["Delete article" gnus-summary-delete-article
1784 (gnus-check-backend-function
1785 'request-expire-articles gnus-newsgroup-name)]
1786 ["Query respool" gnus-summary-respool-query t]
1787 ["Trace respool" gnus-summary-respool-trace t]
1788 ["Delete expirable articles" gnus-summary-expire-articles-now
1789 (gnus-check-backend-function
1790 'request-expire-articles gnus-newsgroup-name)])
1791 ("Extract"
60bd5589
DL		 1792 ["Uudecode" gnus-uu-decode-uu
1793 :help "Decode uuencoded article(s)"]
6748645f
LMI		 1794 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
1795 ["Unshar" gnus-uu-decode-unshar t]
1796 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
1797 ["Save" gnus-uu-decode-save t]
1798 ["Binhex" gnus-uu-decode-binhex t]
1799 ["Postscript" gnus-uu-decode-postscript t])
1800 ("Cache"
1801 ["Enter article" gnus-cache-enter-article t]
1802 ["Remove article" gnus-cache-remove-article t])
16409b0b 1803 ["Translate" gnus-article-babel t]
6748645f
LMI		 1804 ["Select article buffer" gnus-summary-select-article-buffer t]
1805 ["Enter digest buffer" gnus-summary-enter-digest-group t]
1806 ["Isearch article..." gnus-summary-isearch-article t]
1807 ["Beginning of the article" gnus-summary-beginning-of-article t]
1808 ["End of the article" gnus-summary-end-of-article t]
1809 ["Fetch parent of article" gnus-summary-refer-parent-article t]
1810 ["Fetch referenced articles" gnus-summary-refer-references t]
1811 ["Fetch current thread" gnus-summary-refer-thread t]
1812 ["Fetch article with id..." gnus-summary-refer-article t]
1813 ["Redisplay" gnus-summary-show-article t])))
1814 (easy-menu-define
1815 gnus-summary-article-menu gnus-summary-mode-map ""
1816 (cons "Article" innards))
1817
1818 (easy-menu-define
1819 gnus-article-commands-menu gnus-article-mode-map ""
1820 (cons "Commands" innards)))
eec82323
LMI		 1821
1822 (easy-menu-define
1823 gnus-summary-thread-menu gnus-summary-mode-map ""
1824 '("Threads"
1825 ["Toggle threading" gnus-summary-toggle-threads t]
1826 ["Hide threads" gnus-summary-hide-all-threads t]
1827 ["Show threads" gnus-summary-show-all-threads t]
1828 ["Hide thread" gnus-summary-hide-thread t]
1829 ["Show thread" gnus-summary-show-thread t]
1830 ["Go to next thread" gnus-summary-next-thread t]
1831 ["Go to previous thread" gnus-summary-prev-thread t]
1832 ["Go down thread" gnus-summary-down-thread t]
1833 ["Go up thread" gnus-summary-up-thread t]
1834 ["Top of thread" gnus-summary-top-thread t]
1835 ["Mark thread as read" gnus-summary-kill-thread t]
1836 ["Lower thread score" gnus-summary-lower-thread t]
1837 ["Raise thread score" gnus-summary-raise-thread t]
16409b0b 1838 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI		 1839
1840 (easy-menu-define
1841 gnus-summary-post-menu gnus-summary-mode-map ""
1842 '("Post"
60bd5589
DL		 1843 ["Post an article" gnus-summary-post-news
1844 :help "Post an article"]
1845 ["Followup" gnus-summary-followup
1846 :help "Post followup to this article"]
1847 ["Followup and yank" gnus-summary-followup-with-original
1848 :help "Post followup to this article, quoting its contents"]
eec82323 1849 ["Supersede article" gnus-summary-supersede-article t]
60bd5589
DL		 1850 ["Cancel article" gnus-summary-cancel-article
1851 :help "Cancel an article you posted"]
eec82323
LMI		 1852 ["Reply" gnus-summary-reply t]
1853 ["Reply and yank" gnus-summary-reply-with-original t]
1854 ["Wide reply" gnus-summary-wide-reply t]
60bd5589
DL		 1855 ["Wide reply and yank" gnus-summary-wide-reply-with-original
1856 :help "Mail a reply, quoting this article"]
eec82323
LMI		 1857 ["Mail forward" gnus-summary-mail-forward t]
1858 ["Post forward" gnus-summary-post-forward t]
1859 ["Digest and mail" gnus-uu-digest-mail-forward t]
1860 ["Digest and post" gnus-uu-digest-post-forward t]
1861 ["Resend message" gnus-summary-resend-message t]
1862 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
1863 ["Send a mail" gnus-summary-mail-other-window t]
60bd5589
DL		 1864 ["Uuencode and post" gnus-uu-post-news
1865 :help "Post a uuencoded article"]
eec82323
LMI		 1866 ["Followup via news" gnus-summary-followup-to-mail t]
1867 ["Followup via news and yank"
1868 gnus-summary-followup-to-mail-with-original t]
1869 ;;("Draft"
1870 ;;["Send" gnus-summary-send-draft t]
1871 ;;["Send bounced" gnus-resend-bounced-mail t])
1872 ))
1873
1874 (easy-menu-define
1875 gnus-summary-misc-menu gnus-summary-mode-map ""
1876 '("Misc"
1877 ("Mark Read"
1878 ["Mark as read" gnus-summary-mark-as-read-forward t]
1879 ["Mark same subject and select"
1880 gnus-summary-kill-same-subject-and-select t]
1881 ["Mark same subject" gnus-summary-kill-same-subject t]
60bd5589
DL		 1882 ["Catchup" gnus-summary-catchup
1883 :help "Mark unread articles in this group as read"]
eec82323
LMI		 1884 ["Catchup all" gnus-summary-catchup-all t]
1885 ["Catchup to here" gnus-summary-catchup-to-here t]
1886 ["Catchup region" gnus-summary-mark-region-as-read t]
1887 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
1888 ("Mark Various"
1889 ["Tick" gnus-summary-tick-article-forward t]
1890 ["Mark as dormant" gnus-summary-mark-as-dormant t]
1891 ["Remove marks" gnus-summary-clear-mark-forward t]
1892 ["Set expirable mark" gnus-summary-mark-as-expirable t]
1893 ["Set bookmark" gnus-summary-set-bookmark t]
1894 ["Remove bookmark" gnus-summary-remove-bookmark t])
1895 ("Mark Limit"
1896 ["Marks..." gnus-summary-limit-to-marks t]
1897 ["Subject..." gnus-summary-limit-to-subject t]
1898 ["Author..." gnus-summary-limit-to-author t]
1899 ["Age..." gnus-summary-limit-to-age t]
16409b0b 1900 ["Extra..." gnus-summary-limit-to-extra t]
eec82323
LMI		 1901 ["Score" gnus-summary-limit-to-score t]
1902 ["Unread" gnus-summary-limit-to-unread t]
1903 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
1904 ["Articles" gnus-summary-limit-to-articles t]
1905 ["Pop limit" gnus-summary-pop-limit t]
1906 ["Show dormant" gnus-summary-limit-include-dormant t]
1907 ["Hide childless dormant"
1908 gnus-summary-limit-exclude-childless-dormant t]
1909 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
16409b0b 1910 ["Hide marked" gnus-summary-limit-exclude-marks t]
eec82323
LMI		 1911 ["Show expunged" gnus-summary-show-all-expunged t])
1912 ("Process Mark"
1913 ["Set mark" gnus-summary-mark-as-processable t]
1914 ["Remove mark" gnus-summary-unmark-as-processable t]
1915 ["Remove all marks" gnus-summary-unmark-all-processable t]
1916 ["Mark above" gnus-uu-mark-over t]
1917 ["Mark series" gnus-uu-mark-series t]
1918 ["Mark region" gnus-uu-mark-region t]
6748645f 1919 ["Unmark region" gnus-uu-unmark-region t]
eec82323 1920 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
6748645f 1921 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
eec82323
LMI		 1922 ["Mark all" gnus-uu-mark-all t]
1923 ["Mark buffer" gnus-uu-mark-buffer t]
1924 ["Mark sparse" gnus-uu-mark-sparse t]
1925 ["Mark thread" gnus-uu-mark-thread t]
1926 ["Unmark thread" gnus-uu-unmark-thread t]
1927 ("Process Mark Sets"
1928 ["Kill" gnus-summary-kill-process-mark t]
1929 ["Yank" gnus-summary-yank-process-mark
1930 gnus-newsgroup-process-stack]
1931 ["Save" gnus-summary-save-process-mark t]))
1932 ("Scroll article"
60bd5589
DL		 1933 ["Page forward" gnus-summary-next-page
1934 :help "Show next page of article"]
1935 ["Page backward" gnus-summary-prev-page
1936 :help "Show previous page of article"]
eec82323
LMI		 1937 ["Line forward" gnus-summary-scroll-up t])
1938 ("Move"
1939 ["Next unread article" gnus-summary-next-unread-article t]
1940 ["Previous unread article" gnus-summary-prev-unread-article t]
1941 ["Next article" gnus-summary-next-article t]
1942 ["Previous article" gnus-summary-prev-article t]
1943 ["Next unread subject" gnus-summary-next-unread-subject t]
1944 ["Previous unread subject" gnus-summary-prev-unread-subject t]
1945 ["Next article same subject" gnus-summary-next-same-subject t]
1946 ["Previous article same subject" gnus-summary-prev-same-subject t]
1947 ["First unread article" gnus-summary-first-unread-article t]
1948 ["Best unread article" gnus-summary-best-unread-article t]
1949 ["Go to subject number..." gnus-summary-goto-subject t]
1950 ["Go to article number..." gnus-summary-goto-article t]
1951 ["Go to the last article" gnus-summary-goto-last-article t]
1952 ["Pop article off history" gnus-summary-pop-article t])
1953 ("Sort"
1954 ["Sort by number" gnus-summary-sort-by-number t]
1955 ["Sort by author" gnus-summary-sort-by-author t]
1956 ["Sort by subject" gnus-summary-sort-by-subject t]
1957 ["Sort by date" gnus-summary-sort-by-date t]
1958 ["Sort by score" gnus-summary-sort-by-score t]
16409b0b
GM		 1959 ["Sort by lines" gnus-summary-sort-by-lines t]
1960 ["Sort by characters" gnus-summary-sort-by-chars t])
eec82323
LMI		 1961 ("Help"
1962 ["Fetch group FAQ" gnus-summary-fetch-faq t]
1963 ["Describe group" gnus-summary-describe-group t]
1964 ["Read manual" gnus-info-find-node t])
1965 ("Modes"
1966 ["Pick and read" gnus-pick-mode t]
1967 ["Binary" gnus-binary-mode t])
1968 ("Regeneration"
1969 ["Regenerate" gnus-summary-prepare t]
1970 ["Insert cached articles" gnus-summary-insert-cached-articles t]
1971 ["Toggle threading" gnus-summary-toggle-threads t])
1972 ["Filter articles..." gnus-summary-execute-command t]
1973 ["Run command on subjects..." gnus-summary-universal-argument t]
1974 ["Search articles forward..." gnus-summary-search-article-forward t]
1975 ["Search articles backward..." gnus-summary-search-article-backward t]
1976 ["Toggle line truncation" gnus-summary-toggle-truncation t]
1977 ["Expand window" gnus-summary-expand-window t]
1978 ["Expire expirable articles" gnus-summary-expire-articles
1979 (gnus-check-backend-function
1980 'request-expire-articles gnus-newsgroup-name)]
1981 ["Edit local kill file" gnus-summary-edit-local-kill t]
1982 ["Edit main kill file" gnus-summary-edit-global-kill t]
6748645f 1983 ["Edit group parameters" gnus-summary-edit-parameters t]
16409b0b 1984 ["Customize group parameters" gnus-summary-customize-parameters t]
6748645f 1985 ["Send a bug report" gnus-bug t]
eec82323 1986 ("Exit"
60bd5589
DL		 1987 ["Catchup and exit" gnus-summary-catchup-and-exit
1988 :help "Mark unread articles in this group as read, then exit"]
6748645f 1989 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
eec82323 1990 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
60bd5589
DL		 1991 ["Exit group" gnus-summary-exit
1992 :help "Exit current group, return to group selection mode"]
eec82323
LMI		 1993 ["Exit group without updating" gnus-summary-exit-no-update t]
1994 ["Exit and goto next group" gnus-summary-next-group t]
1995 ["Exit and goto prev group" gnus-summary-prev-group t]
1996 ["Reselect group" gnus-summary-reselect-current-group t]
1997 ["Rescan group" gnus-summary-rescan-group t]
1998 ["Update dribble" gnus-summary-save-newsrc t])))
1999
6748645f 2000 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2001
60bd5589
DL		 2002(defvar gnus-summary-tool-bar-map nil)
2003
9a0026a6 2004;; Emacs 21 tool bar. Should be no-op otherwise.
60bd5589
DL		 2005(defun gnus-summary-make-tool-bar ()
2006 (if (and (fboundp 'tool-bar-add-item-from-menu)
2007 (default-value 'tool-bar-mode)
2008 (not gnus-summary-tool-bar-map))
2009 (setq gnus-summary-tool-bar-map
2010 (let ((tool-bar-map (make-sparse-keymap)))
2011 (tool-bar-add-item-from-menu
2012 'gnus-summary-prev-unread "prev-ur" gnus-summary-mode-map)
2013 (tool-bar-add-item-from-menu
2014 'gnus-summary-next-unread "next-ur" gnus-summary-mode-map)
2015 (tool-bar-add-item-from-menu
2016 'gnus-summary-post-news "post" gnus-summary-mode-map)
2017 (tool-bar-add-item-from-menu
2018 'gnus-summary-followup-with-original "fuwo" gnus-summary-mode-map)
2019 (tool-bar-add-item-from-menu
2020 'gnus-summary-followup "followup" gnus-summary-mode-map)
2021 (tool-bar-add-item-from-menu
2022 'gnus-summary-reply-with-original "reply-wo" gnus-summary-mode-map)
2023 (tool-bar-add-item-from-menu
2024 'gnus-summary-reply "reply" gnus-summary-mode-map)
2025 (tool-bar-add-item-from-menu
2026 'gnus-summary-caesar-message "rot13" gnus-summary-mode-map)
2027 (tool-bar-add-item-from-menu
2028 'gnus-uu-decode-uu "uu-decode" gnus-summary-mode-map)
2029 (tool-bar-add-item-from-menu
2030 'gnus-summary-save-article-file "save-aif" gnus-summary-mode-map)
2031 (tool-bar-add-item-from-menu
2032 'gnus-summary-save-article "save-art" gnus-summary-mode-map)
2033 (tool-bar-add-item-from-menu
2034 'gnus-uu-post-news "uu-post" gnus-summary-mode-map)
2035 (tool-bar-add-item-from-menu
2036 'gnus-summary-catchup "catchup" gnus-summary-mode-map)
2037 (tool-bar-add-item-from-menu
2038 'gnus-summary-catchup-and-exit "cu-exit" gnus-summary-mode-map)
2039 (tool-bar-add-item-from-menu
2040 'gnus-summary-exit "exit-summ" gnus-summary-mode-map)
2041 tool-bar-map)))
2042 (if gnus-summary-tool-bar-map
2043 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
2044
eec82323
LMI		 2045(defun gnus-score-set-default (var value)
2046 "A version of set that updates the GNU Emacs menu-bar."
2047 (set var value)
2048 ;; It is the message that forces the active status to be updated.
2049 (message ""))
2050
2051(defun gnus-make-score-map (type)
2052 "Make a summary score map of type TYPE."
2053 (if t
2054 nil
2055 (let ((headers '(("author" "from" string)
2056 ("subject" "subject" string)
2057 ("article body" "body" string)
2058 ("article head" "head" string)
2059 ("xref" "xref" string)
16409b0b 2060 ("extra header" "extra" string)
eec82323
LMI		 2061 ("lines" "lines" number)
2062 ("followups to author" "followup" string)))
2063 (types '((number ("less than" <)
2064 ("greater than" >)
2065 ("equal" =))
2066 (string ("substring" s)
2067 ("exact string" e)
2068 ("fuzzy string" f)
2069 ("regexp" r))))
2070 (perms '(("temporary" (current-time-string))
2071 ("permanent" nil)
2072 ("immediate" now)))
2073 header)
2074 (list
2075 (apply
2076 'nconc
2077 (list
2078 (if (eq type 'lower)
2079 "Lower score"
2080 "Increase score"))
2081 (let (outh)
2082 (while headers
2083 (setq header (car headers))
2084 (setq outh
2085 (cons
2086 (apply
2087 'nconc
2088 (list (car header))
2089 (let ((ts (cdr (assoc (nth 2 header) types)))
2090 outt)
2091 (while ts
2092 (setq outt
2093 (cons
2094 (apply
2095 'nconc
2096 (list (caar ts))
2097 (let ((ps perms)
2098 outp)
2099 (while ps
2100 (setq outp
2101 (cons
2102 (vector
2103 (caar ps)
2104 (list
2105 'gnus-summary-score-entry
2106 (nth 1 header)
2107 (if (or (string= (nth 1 header)
2108 "head")
2109 (string= (nth 1 header)
2110 "body"))
2111 ""
2112 (list 'gnus-summary-header
2113 (nth 1 header)))
2114 (list 'quote (nth 1 (car ts)))
16409b0b
GM		 2115 (list 'gnus-score-delta-default
2116 nil)
eec82323
LMI		 2117 (nth 1 (car ps))
2118 t)
2119 t)
2120 outp))
2121 (setq ps (cdr ps)))
2122 (list (nreverse outp))))
2123 outt))
2124 (setq ts (cdr ts)))
2125 (list (nreverse outt))))
2126 outh))
2127 (setq headers (cdr headers)))
2128 (list (nreverse outh))))))))
2129
2130\f
2131
2132(defun gnus-summary-mode (&optional group)
2133 "Major mode for reading articles.
2134
2135All normal editing commands are switched off.
2136\\<gnus-summary-mode-map>
2137Each line in this buffer represents one article. To read an
2138article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
2139and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
2140respectively.
2141
2142You can also post articles and send mail from this buffer. To
2143follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
2144of an article, type `\\[gnus-summary-reply]'.
2145
2146There are approx. one gazillion commands you can execute in this
2147buffer; read the info pages for more information (`\\[gnus-info-find-node]').
2148
2149The following commands are available:
2150
2151\\{gnus-summary-mode-map}"
2152 (interactive)
eec82323 2153 (kill-all-local-variables)
60bd5589
DL		 2154 (when (gnus-visual-p 'summary-menu 'menu)
2155 (gnus-summary-make-menu-bar)
2156 (gnus-summary-make-tool-bar))
eec82323
LMI		 2157 (gnus-summary-make-local-variables)
2158 (gnus-make-thread-indent-array)
2159 (gnus-simplify-mode-line)
2160 (setq major-mode 'gnus-summary-mode)
2161 (setq mode-name "Summary")
2162 (make-local-variable 'minor-mode-alist)
2163 (use-local-map gnus-summary-mode-map)
16409b0b 2164 (buffer-disable-undo)
eec82323
LMI		 2165 (setq buffer-read-only t) ;Disable modification
2166 (setq truncate-lines t)
2167 (setq selective-display t)
2168 (setq selective-display-ellipses t) ;Display `...'
2169 (gnus-summary-set-display-table)
2170 (gnus-set-default-directory)
2171 (setq gnus-newsgroup-name group)
2172 (make-local-variable 'gnus-summary-line-format)
2173 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI		 2174 (make-local-variable 'gnus-summary-dummy-line-format)
2175 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 2176 (make-local-variable 'gnus-summary-mark-positions)
6748645f
LMI		 2177 (make-local-hook 'pre-command-hook)
2178 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
2179 (gnus-run-hooks 'gnus-summary-mode-hook)
d4dfaa19 2180 (mm-enable-multibyte-mule4)
eec82323
LMI		 2181 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
2182 (gnus-update-summary-mark-positions))
2183
2184(defun gnus-summary-make-local-variables ()
2185 "Make all the local summary buffer variables."
16409b0b
GM		 2186 (let (global)
2187 (dolist (local gnus-summary-local-variables)
eec82323
LMI		 2188 (if (consp local)
2189 (progn
2190 (if (eq (cdr local) 'global)
2191 ;; Copy the global value of the variable.
2192 (setq global (symbol-value (car local)))
2193 ;; Use the value from the list.
2194 (setq global (eval (cdr local))))
16409b0b 2195 (set (make-local-variable (car local)) global))
eec82323 2196 ;; Simple nil-valued local variable.
16409b0b 2197 (set (make-local-variable local) nil)))))
eec82323
LMI		 2198
2199(defun gnus-summary-clear-local-variables ()
2200 (let ((locals gnus-summary-local-variables))
2201 (while locals
2202 (if (consp (car locals))
2203 (and (vectorp (caar locals))
2204 (set (caar locals) nil))
2205 (and (vectorp (car locals))
2206 (set (car locals) nil)))
2207 (setq locals (cdr locals)))))
2208
2209;; Summary data functions.
2210
2211(defmacro gnus-data-number (data)
2212 `(car ,data))
2213
2214(defmacro gnus-data-set-number (data number)
2215 `(setcar ,data ,number))
2216
2217(defmacro gnus-data-mark (data)
2218 `(nth 1 ,data))
2219
2220(defmacro gnus-data-set-mark (data mark)
2221 `(setcar (nthcdr 1 ,data) ,mark))
2222
2223(defmacro gnus-data-pos (data)
2224 `(nth 2 ,data))
2225
2226(defmacro gnus-data-set-pos (data pos)
2227 `(setcar (nthcdr 2 ,data) ,pos))
2228
2229(defmacro gnus-data-header (data)
2230 `(nth 3 ,data))
2231
2232(defmacro gnus-data-set-header (data header)
2233 `(setf (nth 3 ,data) ,header))
2234
2235(defmacro gnus-data-level (data)
2236 `(nth 4 ,data))
2237
2238(defmacro gnus-data-unread-p (data)
2239 `(= (nth 1 ,data) gnus-unread-mark))
2240
2241(defmacro gnus-data-read-p (data)
2242 `(/= (nth 1 ,data) gnus-unread-mark))
2243
2244(defmacro gnus-data-pseudo-p (data)
2245 `(consp (nth 3 ,data)))
2246
2247(defmacro gnus-data-find (number)
2248 `(assq ,number gnus-newsgroup-data))
2249
2250(defmacro gnus-data-find-list (number &optional data)
2251 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
2252 (memq (assq ,number bdata)
2253 bdata)))
2254
2255(defmacro gnus-data-make (number mark pos header level)
2256 `(list ,number ,mark ,pos ,header ,level))
2257
2258(defun gnus-data-enter (after-article number mark pos header level offset)
2259 (let ((data (gnus-data-find-list after-article)))
2260 (unless data
2261 (error "No such article: %d" after-article))
2262 (setcdr data (cons (gnus-data-make number mark pos header level)
2263 (cdr data)))
2264 (setq gnus-newsgroup-data-reverse nil)
2265 (gnus-data-update-list (cddr data) offset)))
2266
2267(defun gnus-data-enter-list (after-article list &optional offset)
2268 (when list
2269 (let ((data (and after-article (gnus-data-find-list after-article)))
2270 (ilist list))
6748645f
LMI		 2271 (if (not (or data
2272 after-article))
2273 (let ((odata gnus-newsgroup-data))
2274 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 2275 (when offset
6748645f
LMI		 2276 (gnus-data-update-list odata offset)))
2277 ;; Find the last element in the list to be spliced into the main
2278 ;; list.
2279 (while (cdr list)
2280 (setq list (cdr list)))
2281 (if (not data)
2282 (progn
2283 (setcdr list gnus-newsgroup-data)
2284 (setq gnus-newsgroup-data ilist)
2285 (when offset
2286 (gnus-data-update-list (cdr list) offset)))
2287 (setcdr list (cdr data))
2288 (setcdr data ilist)
2289 (when offset
2290 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI		 2291 (setq gnus-newsgroup-data-reverse nil))))
2292
2293(defun gnus-data-remove (article &optional offset)
2294 (let ((data gnus-newsgroup-data))
2295 (if (= (gnus-data-number (car data)) article)
2296 (progn
2297 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
2298 gnus-newsgroup-data-reverse nil)
2299 (when offset
2300 (gnus-data-update-list gnus-newsgroup-data offset)))
2301 (while (cdr data)
2302 (when (= (gnus-data-number (cadr data)) article)
2303 (setcdr data (cddr data))
2304 (when offset
2305 (gnus-data-update-list (cdr data) offset))
2306 (setq data nil
2307 gnus-newsgroup-data-reverse nil))
2308 (setq data (cdr data))))))
2309
2310(defmacro gnus-data-list (backward)
2311 `(if ,backward
2312 (or gnus-newsgroup-data-reverse
2313 (setq gnus-newsgroup-data-reverse
2314 (reverse gnus-newsgroup-data)))
2315 gnus-newsgroup-data))
2316
2317(defun gnus-data-update-list (data offset)
2318 "Add OFFSET to the POS of all data entries in DATA."
6748645f 2319 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI		 2320 (while data
2321 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
2322 (setq data (cdr data))))
2323
eec82323
LMI		 2324(defun gnus-summary-article-pseudo-p (article)
2325 "Say whether this article is a pseudo article or not."
2326 (not (vectorp (gnus-data-header (gnus-data-find article)))))
2327
2328(defmacro gnus-summary-article-sparse-p (article)
2329 "Say whether this article is a sparse article or not."
a8151ef7 2330 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI		 2331
2332(defmacro gnus-summary-article-ancient-p (article)
2333 "Say whether this article is a sparse article or not."
2334 `(memq ,article gnus-newsgroup-ancient))
2335
2336(defun gnus-article-parent-p (number)
2337 "Say whether this article is a parent or not."
2338 (let ((data (gnus-data-find-list number)))
2339 (and (cdr data) ; There has to be an article after...
2340 (< (gnus-data-level (car data)) ; And it has to have a higher level.
2341 (gnus-data-level (nth 1 data))))))
2342
2343(defun gnus-article-children (number)
2344 "Return a list of all children to NUMBER."
2345 (let* ((data (gnus-data-find-list number))
2346 (level (gnus-data-level (car data)))
2347 children)
2348 (setq data (cdr data))
2349 (while (and data
2350 (= (gnus-data-level (car data)) (1+ level)))
2351 (push (gnus-data-number (car data)) children)
2352 (setq data (cdr data)))
2353 children))
2354
2355(defmacro gnus-summary-skip-intangible ()
2356 "If the current article is intangible, then jump to a different article."
2357 '(let ((to (get-text-property (point) 'gnus-intangible)))
2358 (and to (gnus-summary-goto-subject to))))
2359
2360(defmacro gnus-summary-article-intangible-p ()
2361 "Say whether this article is intangible or not."
2362 '(get-text-property (point) 'gnus-intangible))
2363
2364(defun gnus-article-read-p (article)
2365 "Say whether ARTICLE is read or not."
2366 (not (or (memq article gnus-newsgroup-marked)
2367 (memq article gnus-newsgroup-unreads)
2368 (memq article gnus-newsgroup-unselected)
2369 (memq article gnus-newsgroup-dormant))))
2370
2371;; Some summary mode macros.
2372
2373(defmacro gnus-summary-article-number ()
2374 "The article number of the article on the current line.
2375If there isn's an article number here, then we return the current
2376article number."
2377 '(progn
2378 (gnus-summary-skip-intangible)
2379 (or (get-text-property (point) 'gnus-number)
2380 (gnus-summary-last-subject))))
2381
2382(defmacro gnus-summary-article-header (&optional number)
6748645f 2383 "Return the header of article NUMBER."
eec82323
LMI		 2384 `(gnus-data-header (gnus-data-find
2385 ,(or number '(gnus-summary-article-number)))))
2386
2387(defmacro gnus-summary-thread-level (&optional number)
6748645f 2388 "Return the level of thread that starts with article NUMBER."
eec82323
LMI		 2389 `(if (and (eq gnus-summary-make-false-root 'dummy)
2390 (get-text-property (point) 'gnus-intangible))
2391 0
2392 (gnus-data-level (gnus-data-find
2393 ,(or number '(gnus-summary-article-number))))))
2394
2395(defmacro gnus-summary-article-mark (&optional number)
6748645f 2396 "Return the mark of article NUMBER."
eec82323
LMI		 2397 `(gnus-data-mark (gnus-data-find
2398 ,(or number '(gnus-summary-article-number)))))
2399
2400(defmacro gnus-summary-article-pos (&optional number)
6748645f 2401 "Return the position of the line of article NUMBER."
eec82323
LMI		 2402 `(gnus-data-pos (gnus-data-find
2403 ,(or number '(gnus-summary-article-number)))))
2404
2405(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
2406(defmacro gnus-summary-article-subject (&optional number)
2407 "Return current subject string or nil if nothing."
2408 `(let ((headers
2409 ,(if number
2410 `(gnus-data-header (assq ,number gnus-newsgroup-data))
2411 '(gnus-data-header (assq (gnus-summary-article-number)
2412 gnus-newsgroup-data)))))
2413 (and headers
2414 (vectorp headers)
2415 (mail-header-subject headers))))
2416
2417(defmacro gnus-summary-article-score (&optional number)
2418 "Return current article score."
2419 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
2420 gnus-newsgroup-scored))
2421 gnus-summary-default-score 0))
2422
2423(defun gnus-summary-article-children (&optional number)
6748645f 2424 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI		 2425 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
2426 (level (gnus-data-level (car data)))
2427 l children)
2428 (while (and (setq data (cdr data))
2429 (> (setq l (gnus-data-level (car data))) level))
2430 (and (= (1+ level) l)
2431 (push (gnus-data-number (car data))
2432 children)))
2433 (nreverse children)))
2434
2435(defun gnus-summary-article-parent (&optional number)
6748645f 2436 "Return the article number of the parent of article NUMBER."
eec82323
LMI		 2437 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
2438 (gnus-data-list t)))
2439 (level (gnus-data-level (car data))))
2440 (if (zerop level)
2441 () ; This is a root.
2442 ;; We search until we find an article with a level less than
2443 ;; this one. That function has to be the parent.
2444 (while (and (setq data (cdr data))
2445 (not (< (gnus-data-level (car data)) level))))
2446 (and data (gnus-data-number (car data))))))
2447
2448(defun gnus-unread-mark-p (mark)
2449 "Say whether MARK is the unread mark."
2450 (= mark gnus-unread-mark))
2451
2452(defun gnus-read-mark-p (mark)
2453 "Say whether MARK is one of the marks that mark as read.
2454This is all marks except unread, ticked, dormant, and expirable."
2455 (not (or (= mark gnus-unread-mark)
2456 (= mark gnus-ticked-mark)
2457 (= mark gnus-dormant-mark)
2458 (= mark gnus-expirable-mark))))
2459
2460(defmacro gnus-article-mark (number)
6748645f
LMI		 2461 "Return the MARK of article NUMBER.
2462This macro should only be used when computing the mark the \"first\"
2463time; i.e., when generating the summary lines. After that,
2464`gnus-summary-article-mark' should be used to examine the
2465marks of articles."
eec82323 2466 `(cond
6748645f
LMI		 2467 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
2468 ((memq ,number gnus-newsgroup-undownloaded) gnus-undownloaded-mark)
2469 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI		 2470 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
2471 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
2472 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
2473 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
2474 (t (or (cdr (assq ,number gnus-newsgroup-reads))
2475 gnus-ancient-mark))))
2476
2477;; Saving hidden threads.
2478
2479(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
2480(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
2481
2482(defmacro gnus-save-hidden-threads (&rest forms)
2483 "Save hidden threads, eval FORMS, and restore the hidden threads."
2484 (let ((config (make-symbol "config")))
2485 `(let ((,config (gnus-hidden-threads-configuration)))
2486 (unwind-protect
2487 (save-excursion
2488 ,@forms)
2489 (gnus-restore-hidden-threads-configuration ,config)))))
2490
107ecebb
AS		 2491(defun gnus-data-compute-positions ()
2492 "Compute the positions of all articles."
2493 (setq gnus-newsgroup-data-reverse nil)
2494 (let ((data gnus-newsgroup-data))
2495 (save-excursion
2496 (gnus-save-hidden-threads
2497 (gnus-summary-show-all-threads)
2498 (goto-char (point-min))
2499 (while data
2500 (while (get-text-property (point) 'gnus-intangible)
2501 (forward-line 1))
2502 (gnus-data-set-pos (car data) (+ (point) 3))
2503 (setq data (cdr data))
2504 (forward-line 1))))))
2505
16409b0b
GM		 2506(defun gnus-hidden-threads-configuration ()
2507 "Return the current hidden threads configuration."
2508 (save-excursion
2509 (let (config)
2510 (goto-char (point-min))
2511 (while (search-forward "\r" nil t)
2512 (push (1- (point)) config))
2513 config)))
2514
2515(defun gnus-restore-hidden-threads-configuration (config)
2516 "Restore hidden threads configuration from CONFIG."
2517 (save-excursion
2518 (let (point buffer-read-only)
2519 (while (setq point (pop config))
2520 (when (and (< point (point-max))
2521 (goto-char point)
2522 (eq (char-after) ?\n))
2523 (subst-char-in-region point (1+ point) ?\n ?\r))))))
2524
eec82323
LMI		 2525;; Various summary mode internalish functions.
2526
2527(defun gnus-mouse-pick-article (e)
2528 (interactive "e")
2529 (mouse-set-point e)
2530 (gnus-summary-next-page nil t))
2531
2532(defun gnus-summary-set-display-table ()
16409b0b
GM		 2533 "Change the display table.
2534Odd characters have a tendency to mess
2535up nicely formatted displays - we make all possible glyphs
2536display only a single character."
eec82323
LMI		 2537
2538 ;; We start from the standard display table, if any.
2539 (let ((table (or (copy-sequence standard-display-table)
2540 (make-display-table)))
2541 (i 32))
2542 ;; Nix out all the control chars...
2543 (while (>= (setq i (1- i)) 0)
2544 (aset table i [??]))
2545 ;; ... but not newline and cr, of course. (cr is necessary for the
2546 ;; selective display).
2547 (aset table ?\n nil)
2548 (aset table ?\r nil)
6748645f
LMI		 2549 ;; We keep TAB as well.
2550 (aset table ?\t nil)
eec82323
LMI		 2551 ;; We nix out any glyphs over 126 that are not set already.
2552 (let ((i 256))
2553 (while (>= (setq i (1- i)) 127)
2554 ;; Only modify if the entry is nil.
2555 (unless (aref table i)
2556 (aset table i [??]))))
2557 (setq buffer-display-table table)))
2558
2559(defun gnus-summary-setup-buffer (group)
2560 "Initialize summary buffer."
2561 (let ((buffer (concat "*Summary " group "*")))
2562 (if (get-buffer buffer)
2563 (progn
2564 (set-buffer buffer)
2565 (setq gnus-summary-buffer (current-buffer))
2566 (not gnus-newsgroup-prepared))
2567 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 2568 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI		 2569 (gnus-summary-mode group)
2570 (when gnus-carpal
2571 (gnus-carpal-setup-buffer 'summary))
2572 (unless gnus-single-article-buffer
2573 (make-local-variable 'gnus-article-buffer)
2574 (make-local-variable 'gnus-article-current)
2575 (make-local-variable 'gnus-original-article-buffer))
2576 (setq gnus-newsgroup-name group)
2577 t)))
2578
2579(defun gnus-set-global-variables ()
16409b0b
GM		 2580 "Set the global equivalents of the buffer-local variables.
2581They are set to the latest values they had. These reflect the summary
2582buffer that was in action when the last article was fetched."
eec82323
LMI		 2583 (when (eq major-mode 'gnus-summary-mode)
2584 (setq gnus-summary-buffer (current-buffer))
2585 (let ((name gnus-newsgroup-name)
2586 (marked gnus-newsgroup-marked)
2587 (unread gnus-newsgroup-unreads)
2588 (headers gnus-current-headers)
2589 (data gnus-newsgroup-data)
2590 (summary gnus-summary-buffer)
2591 (article-buffer gnus-article-buffer)
2592 (original gnus-original-article-buffer)
2593 (gac gnus-article-current)
2594 (reffed gnus-reffed-article-number)
16409b0b
GM		 2595 (score-file gnus-current-score-file)
2596 (default-charset gnus-newsgroup-charset))
eec82323
LMI		 2597 (save-excursion
2598 (set-buffer gnus-group-buffer)
6748645f
LMI		 2599 (setq gnus-newsgroup-name name
2600 gnus-newsgroup-marked marked
2601 gnus-newsgroup-unreads unread
2602 gnus-current-headers headers
2603 gnus-newsgroup-data data
2604 gnus-article-current gac
2605 gnus-summary-buffer summary
2606 gnus-article-buffer article-buffer
2607 gnus-original-article-buffer original
2608 gnus-reffed-article-number reffed
16409b0b
GM		 2609 gnus-current-score-file score-file
2610 gnus-newsgroup-charset default-charset)
eec82323
LMI		 2611 ;; The article buffer also has local variables.
2612 (when (gnus-buffer-live-p gnus-article-buffer)
2613 (set-buffer gnus-article-buffer)
2614 (setq gnus-summary-buffer summary))))))
2615
2616(defun gnus-summary-article-unread-p (article)
2617 "Say whether ARTICLE is unread or not."
2618 (memq article gnus-newsgroup-unreads))
2619
2620(defun gnus-summary-first-article-p (&optional article)
2621 "Return whether ARTICLE is the first article in the buffer."
2622 (if (not (setq article (or article (gnus-summary-article-number))))
2623 nil
2624 (eq article (caar gnus-newsgroup-data))))
2625
2626(defun gnus-summary-last-article-p (&optional article)
2627 "Return whether ARTICLE is the last article in the buffer."
2628 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM		 2629 ;; All non-existent numbers are the last article. :-)
2630 t
eec82323
LMI		 2631 (not (cdr (gnus-data-find-list article)))))
2632
2633(defun gnus-make-thread-indent-array ()
2634 (let ((n 200))
2635 (unless (and gnus-thread-indent-array
2636 (= gnus-thread-indent-level gnus-thread-indent-array-level))
2637 (setq gnus-thread-indent-array (make-vector 201 "")
2638 gnus-thread-indent-array-level gnus-thread-indent-level)
2639 (while (>= n 0)
2640 (aset gnus-thread-indent-array n
2641 (make-string (* n gnus-thread-indent-level) ? ))
2642 (setq n (1- n))))))
2643
2644(defun gnus-update-summary-mark-positions ()
2645 "Compute where the summary marks are to go."
2646 (save-excursion
6748645f 2647 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323
LMI		 2648 (set-buffer gnus-summary-buffer))
2649 (let ((gnus-replied-mark 129)
2650 (gnus-score-below-mark 130)
2651 (gnus-score-over-mark 130)
6748645f 2652 (gnus-download-mark 131)
eec82323 2653 (spec gnus-summary-line-format-spec)
6748645f 2654 gnus-visual pos)
eec82323
LMI		 2655 (save-excursion
2656 (gnus-set-work-buffer)
6748645f
LMI		 2657 (let ((gnus-summary-line-format-spec spec)
2658 (gnus-newsgroup-downloadable '((0 . t))))
eec82323 2659 (gnus-summary-insert-line
16409b0b 2660 [0 "" "" "" "" "" 0 0 "" nil] 0 nil 128 t nil "" nil 1)
eec82323
LMI		 2661 (goto-char (point-min))
2662 (setq pos (list (cons 'unread (and (search-forward "\200" nil t)
2663 (- (point) 2)))))
2664 (goto-char (point-min))
2665 (push (cons 'replied (and (search-forward "\201" nil t)
2666 (- (point) 2)))
2667 pos)
2668 (goto-char (point-min))
2669 (push (cons 'score (and (search-forward "\202" nil t) (- (point) 2)))
6748645f
LMI		 2670 pos)
2671 (goto-char (point-min))
2672 (push (cons 'download
2673 (and (search-forward "\203" nil t) (- (point) 2)))
eec82323
LMI		 2674 pos)))
2675 (setq gnus-summary-mark-positions pos))))
2676
2677(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
2678 "Insert a dummy root in the summary buffer."
2679 (beginning-of-line)
2680 (gnus-add-text-properties
2681 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
2682 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
2683
16409b0b
GM		 2684(defun gnus-summary-from-or-to-or-newsgroups (header)
2685 (let ((to (cdr (assq 'To (mail-header-extra header))))
2686 (newsgroups (cdr (assq 'Newsgroups (mail-header-extra header))))
2687 (mail-parse-charset gnus-newsgroup-charset)
2688 (mail-parse-ignored-charsets
2689 (save-excursion (set-buffer gnus-summary-buffer)
2690 gnus-newsgroup-ignored-charsets)))
2691 (cond
2692 ((and to
2693 gnus-ignored-from-addresses
2694 (string-match gnus-ignored-from-addresses
2695 (mail-header-from header)))
2696 (concat "-> "
2697 (or (car (funcall gnus-extract-address-components
2698 (funcall
2699 gnus-decode-encoded-word-function to)))
2700 (funcall gnus-decode-encoded-word-function to))))
2701 ((and newsgroups
2702 gnus-ignored-from-addresses
2703 (string-match gnus-ignored-from-addresses
2704 (mail-header-from header)))
2705 (concat "=> " newsgroups))
2706 (t
2707 (or (car (funcall gnus-extract-address-components
2708 (mail-header-from header)))
2709 (mail-header-from header))))))
2710
eec82323
LMI		 2711(defun gnus-summary-insert-line (gnus-tmp-header
2712 gnus-tmp-level gnus-tmp-current
2713 gnus-tmp-unread gnus-tmp-replied
2714 gnus-tmp-expirable gnus-tmp-subject-or-nil
2715 &optional gnus-tmp-dummy gnus-tmp-score
2716 gnus-tmp-process)
2717 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
2718 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
2719 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
2720 (gnus-tmp-score-char
2721 (if (or (null gnus-summary-default-score)
2722 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
2723 gnus-summary-zcore-fuzz))
16409b0b 2724 ? ;Whitespace
eec82323
LMI		 2725 (if (< gnus-tmp-score gnus-summary-default-score)
2726 gnus-score-below-mark gnus-score-over-mark)))
2727 (gnus-tmp-replied
2728 (cond (gnus-tmp-process gnus-process-mark)
2729 ((memq gnus-tmp-current gnus-newsgroup-cached)
2730 gnus-cached-mark)
2731 (gnus-tmp-replied gnus-replied-mark)
2732 ((memq gnus-tmp-current gnus-newsgroup-saved)
2733 gnus-saved-mark)
2734 (t gnus-unread-mark)))
2735 (gnus-tmp-from (mail-header-from gnus-tmp-header))
2736 (gnus-tmp-name
2737 (cond
2738 ((string-match "<[^>]+> *$" gnus-tmp-from)
2739 (let ((beg (match-beginning 0)))
2740 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
2741 (substring gnus-tmp-from (1+ (match-beginning 0))
2742 (1- (match-end 0))))
2743 (substring gnus-tmp-from 0 beg))))
2744 ((string-match "(.+)" gnus-tmp-from)
2745 (substring gnus-tmp-from
2746 (1+ (match-beginning 0)) (1- (match-end 0))))
2747 (t gnus-tmp-from)))
2748 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
2749 (gnus-tmp-number (mail-header-number gnus-tmp-header))
2750 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
2751 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
2752 (buffer-read-only nil))
2753 (when (string= gnus-tmp-name "")
2754 (setq gnus-tmp-name gnus-tmp-from))
2755 (unless (numberp gnus-tmp-lines)
2756 (setq gnus-tmp-lines 0))
16409b0b 2757 (gnus-put-text-property
eec82323
LMI		 2758 (point)
2759 (progn (eval gnus-summary-line-format-spec) (point))
2760 'gnus-number gnus-tmp-number)
2761 (when (gnus-visual-p 'summary-highlight 'highlight)
2762 (forward-line -1)
6748645f 2763 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI		 2764 (forward-line 1))))
2765
2766(defun gnus-summary-update-line (&optional dont-update)
16409b0b 2767 "Update summary line after change."
eec82323
LMI		 2768 (when (and gnus-summary-default-score
2769 (not gnus-summary-inhibit-highlight))
2770 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
2771 (article (gnus-summary-article-number))
2772 (score (gnus-summary-article-score article)))
2773 (unless dont-update
2774 (if (and gnus-summary-mark-below
2775 (< (gnus-summary-article-score)
2776 gnus-summary-mark-below))
2777 ;; This article has a low score, so we mark it as read.
2778 (when (memq article gnus-newsgroup-unreads)
2779 (gnus-summary-mark-article-as-read gnus-low-score-mark))
2780 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
2781 ;; This article was previously marked as read on account
2782 ;; of a low score, but now it has risen, so we mark it as
2783 ;; unread.
2784 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
2785 (gnus-summary-update-mark
2786 (if (or (null gnus-summary-default-score)
2787 (<= (abs (- score gnus-summary-default-score))
2788 gnus-summary-zcore-fuzz))
16409b0b 2789 ? ;Whitespace
eec82323
LMI		 2790 (if (< score gnus-summary-default-score)
2791 gnus-score-below-mark gnus-score-over-mark))
2792 'score))
2793 ;; Do visual highlighting.
2794 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 2795 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI		 2796
2797(defvar gnus-tmp-new-adopts nil)
2798
2799(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
2800 "Return the number of articles in THREAD.
2801This may be 0 in some cases -- if none of the articles in
2802the thread are to be displayed."
2803 (let* ((number
2804 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
2805 (cond
2806 ((not (listp thread))
2807 1)
2808 ((and (consp thread) (cdr thread))
2809 (apply
2810 '+ 1 (mapcar
2811 'gnus-summary-number-of-articles-in-thread (cdr thread))))
2812 ((null thread)
2813 1)
2814 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
2815 1)
2816 (t 0))))
2817 (when (and level (zerop level) gnus-tmp-new-adopts)
2818 (incf number
2819 (apply '+ (mapcar
2820 'gnus-summary-number-of-articles-in-thread
2821 gnus-tmp-new-adopts))))
2822 (if char
2823 (if (> number 1) gnus-not-empty-thread-mark
2824 gnus-empty-thread-mark)
2825 number)))
2826
2827(defun gnus-summary-set-local-parameters (group)
2828 "Go through the local params of GROUP and set all variable specs in that list."
2829 (let ((params (gnus-group-find-parameter group))
2830 elem)
2831 (while params
2832 (setq elem (car params)
2833 params (cdr params))
2834 (and (consp elem) ; Has to be a cons.
2835 (consp (cdr elem)) ; The cdr has to be a list.
2836 (symbolp (car elem)) ; Has to be a symbol in there.
6748645f 2837 (not (memq (car elem) '(quit-config))) ; Ignore quit-config.
eec82323
LMI		 2838 (ignore-errors ; So we set it.
2839 (make-local-variable (car elem))
2840 (set (car elem) (eval (nth 1 elem))))))))
2841
2842(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI		 2843 kill-buffer no-display backward
2844 select-articles)
eec82323
LMI		 2845 "Start reading news in newsgroup GROUP.
2846If SHOW-ALL is non-nil, already read articles are also listed.
2847If NO-ARTICLE is non-nil, no article is selected initially.
2848If NO-DISPLAY, don't generate a summary buffer."
2849 (let (result)
2850 (while (and group
2851 (null (setq result
2852 (let ((gnus-auto-select-next nil))
6748645f
LMI		 2853 (or (gnus-summary-read-group-1
2854 group show-all no-article
2855 kill-buffer no-display
2856 select-articles)
2857 (setq show-all nil
16409b0b 2858 select-articles nil)))))
eec82323
LMI		 2859 (eq gnus-auto-select-next 'quietly))
2860 (set-buffer gnus-group-buffer)
6748645f
LMI		 2861 ;; The entry function called above goes to the next
2862 ;; group automatically, so we go two groups back
2863 ;; if we are searching for the previous group.
2864 (when backward
2865 (gnus-group-prev-unread-group 2))
eec82323
LMI		 2866 (if (not (equal group (gnus-group-group-name)))
2867 (setq group (gnus-group-group-name))
2868 (setq group nil)))
2869 result))
2870
2871(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI		 2872 kill-buffer no-display
2873 &optional select-articles)
eec82323
LMI		 2874 ;; Killed foreign groups can't be entered.
2875 (when (and (not (gnus-group-native-p group))
2876 (not (gnus-gethash group gnus-newsrc-hashtb)))
2877 (error "Dead non-native groups can't be entered"))
2878 (gnus-message 5 "Retrieving newsgroup: %s..." group)
2879 (let* ((new-group (gnus-summary-setup-buffer group))
2880 (quit-config (gnus-group-quit-config group))
6748645f
LMI		 2881 (did-select (and new-group (gnus-select-newsgroup
2882 group show-all select-articles))))
eec82323
LMI		 2883 (cond
2884 ;; This summary buffer exists already, so we just select it.
2885 ((not new-group)
2886 (gnus-set-global-variables)
2887 (when kill-buffer
2888 (gnus-kill-or-deaden-summary kill-buffer))
2889 (gnus-configure-windows 'summary 'force)
2890 (gnus-set-mode-line 'summary)
2891 (gnus-summary-position-point)
2892 (message "")
2893 t)
2894 ;; We couldn't select this group.
2895 ((null did-select)
2896 (when (and (eq major-mode 'gnus-summary-mode)
2897 (not (equal (current-buffer) kill-buffer)))
2898 (kill-buffer (current-buffer))
2899 (if (not quit-config)
2900 (progn
6748645f
LMI		 2901 ;; Update the info -- marks might need to be removed,
2902 ;; for instance.
2903 (gnus-summary-update-info)
eec82323
LMI		 2904 (set-buffer gnus-group-buffer)
2905 (gnus-group-jump-to-group group)
2906 (gnus-group-next-unread-group 1))
2907 (gnus-handle-ephemeral-exit quit-config)))
2908 (gnus-message 3 "Can't select group")
2909 nil)
2910 ;; The user did a `C-g' while prompting for number of articles,
2911 ;; so we exit this group.
2912 ((eq did-select 'quit)
2913 (and (eq major-mode 'gnus-summary-mode)
2914 (not (equal (current-buffer) kill-buffer))
2915 (kill-buffer (current-buffer)))
2916 (when kill-buffer
2917 (gnus-kill-or-deaden-summary kill-buffer))
2918 (if (not quit-config)
2919 (progn
2920 (set-buffer gnus-group-buffer)
2921 (gnus-group-jump-to-group group)
2922 (gnus-group-next-unread-group 1)
2923 (gnus-configure-windows 'group 'force))
2924 (gnus-handle-ephemeral-exit quit-config))
2925 ;; Finally signal the quit.
2926 (signal 'quit nil))
2927 ;; The group was successfully selected.
2928 (t
2929 (gnus-set-global-variables)
2930 ;; Save the active value in effect when the group was entered.
2931 (setq gnus-newsgroup-active
2932 (gnus-copy-sequence
2933 (gnus-active gnus-newsgroup-name)))
2934 ;; You can change the summary buffer in some way with this hook.
6748645f 2935 (gnus-run-hooks 'gnus-select-group-hook)
eec82323
LMI		 2936 ;; Set any local variables in the group parameters.
2937 (gnus-summary-set-local-parameters gnus-newsgroup-name)
2938 (gnus-update-format-specifications
2939 nil 'summary 'summary-mode 'summary-dummy)
16409b0b 2940 (gnus-update-summary-mark-positions)
eec82323
LMI		 2941 ;; Do score processing.
2942 (when gnus-use-scoring
2943 (gnus-possibly-score-headers))
2944 ;; Check whether to fill in the gaps in the threads.
2945 (when gnus-build-sparse-threads
2946 (gnus-build-sparse-threads))
2947 ;; Find the initial limit.
2948 (if gnus-show-threads
2949 (if show-all
2950 (let ((gnus-newsgroup-dormant nil))
2951 (gnus-summary-initial-limit show-all))
2952 (gnus-summary-initial-limit show-all))
16409b0b 2953 ;; When untreaded, all articles are always shown.
eec82323
LMI		 2954 (setq gnus-newsgroup-limit
2955 (mapcar
2956 (lambda (header) (mail-header-number header))
2957 gnus-newsgroup-headers)))
2958 ;; Generate the summary buffer.
2959 (unless no-display
2960 (gnus-summary-prepare))
2961 (when gnus-use-trees
2962 (gnus-tree-open group)
2963 (setq gnus-summary-highlight-line-function
2964 'gnus-tree-highlight-article))
2965 ;; If the summary buffer is empty, but there are some low-scored
2966 ;; articles or some excluded dormants, we include these in the
2967 ;; buffer.
2968 (when (and (zerop (buffer-size))
2969 (not no-display))
2970 (cond (gnus-newsgroup-dormant
2971 (gnus-summary-limit-include-dormant))
2972 ((and gnus-newsgroup-scored show-all)
2973 (gnus-summary-limit-include-expunged t))))
2974 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 2975 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI		 2976 (if (and (zerop (buffer-size))
2977 (not no-display))
2978 (progn
2979 ;; This newsgroup is empty.
2980 (gnus-summary-catchup-and-exit nil t)
2981 (gnus-message 6 "No unread news")
2982 (when kill-buffer
2983 (gnus-kill-or-deaden-summary kill-buffer))
2984 ;; Return nil from this function.
2985 nil)
2986 ;; Hide conversation thread subtrees. We cannot do this in
2987 ;; gnus-summary-prepare-hook since kill processing may not
2988 ;; work with hidden articles.
2989 (and gnus-show-threads
2990 gnus-thread-hide-subtree
2991 (gnus-summary-hide-all-threads))
6748645f
LMI		 2992 (when kill-buffer
2993 (gnus-kill-or-deaden-summary kill-buffer))
eec82323
LMI		 2994 ;; Show first unread article if requested.
2995 (if (and (not no-article)
2996 (not no-display)
2997 gnus-newsgroup-unreads
2998 gnus-auto-select-first)
16409b0b
GM		 2999 (progn
3000 (gnus-configure-windows 'summary)
3001 (cond
3002 ((eq gnus-auto-select-first 'best)
3003 (gnus-summary-best-unread-article))
3004 ((eq gnus-auto-select-first t)
3005 (gnus-summary-first-unread-article))
3006 ((gnus-functionp gnus-auto-select-first)
3007 (funcall gnus-auto-select-first))))
eec82323
LMI		 3008 ;; Don't select any articles, just move point to the first
3009 ;; article in the group.
3010 (goto-char (point-min))
3011 (gnus-summary-position-point)
6748645f
LMI		 3012 (gnus-configure-windows 'summary 'force)
3013 (gnus-set-mode-line 'summary))
eec82323
LMI		 3014 (when (get-buffer-window gnus-group-buffer t)
3015 ;; Gotta use windows, because recenter does weird stuff if
3016 ;; the current buffer ain't the displayed window.
3017 (let ((owin (selected-window)))
3018 (select-window (get-buffer-window gnus-group-buffer t))
3019 (when (gnus-group-goto-group group)
3020 (recenter))
3021 (select-window owin)))
3022 ;; Mark this buffer as "prepared".
3023 (setq gnus-newsgroup-prepared t)
6748645f 3024 (gnus-run-hooks 'gnus-summary-prepared-hook)
eec82323
LMI		 3025 t)))))
3026
3027(defun gnus-summary-prepare ()
3028 "Generate the summary buffer."
3029 (interactive)
3030 (let ((buffer-read-only nil))
3031 (erase-buffer)
3032 (setq gnus-newsgroup-data nil
3033 gnus-newsgroup-data-reverse nil)
6748645f 3034 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI		 3035 ;; Generate the buffer, either with threads or without.
3036 (when gnus-newsgroup-headers
3037 (gnus-summary-prepare-threads
3038 (if gnus-show-threads
3039 (gnus-sort-gathered-threads
3040 (funcall gnus-summary-thread-gathering-function
3041 (gnus-sort-threads
3042 (gnus-cut-threads (gnus-make-threads)))))
3043 ;; Unthreaded display.
3044 (gnus-sort-articles gnus-newsgroup-headers))))
3045 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
3046 ;; Call hooks for modifying summary buffer.
3047 (goto-char (point-min))
6748645f 3048 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI		 3049
3050(defsubst gnus-general-simplify-subject (subject)
3051 "Simply subject by the same rules as gnus-gather-threads-by-subject."
3052 (setq subject
3053 (cond
3054 ;; Truncate the subject.
6748645f
LMI		 3055 (gnus-simplify-subject-functions
3056 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI		 3057 ((numberp gnus-summary-gather-subject-limit)
3058 (setq subject (gnus-simplify-subject-re subject))
3059 (if (> (length subject) gnus-summary-gather-subject-limit)
3060 (substring subject 0 gnus-summary-gather-subject-limit)
3061 subject))
3062 ;; Fuzzily simplify it.
3063 ((eq 'fuzzy gnus-summary-gather-subject-limit)
3064 (gnus-simplify-subject-fuzzy subject))
3065 ;; Just remove the leading "Re:".
3066 (t
3067 (gnus-simplify-subject-re subject))))
3068
3069 (if (and gnus-summary-gather-exclude-subject
3070 (string-match gnus-summary-gather-exclude-subject subject))
3071 nil ; This article shouldn't be gathered
3072 subject))
3073
3074(defun gnus-summary-simplify-subject-query ()
3075 "Query where the respool algorithm would put this article."
3076 (interactive)
eec82323
LMI		 3077 (gnus-summary-select-article)
3078 (message (gnus-general-simplify-subject (gnus-summary-article-subject))))
3079
3080(defun gnus-gather-threads-by-subject (threads)
3081 "Gather threads by looking at Subject headers."
3082 (if (not gnus-summary-make-false-root)
3083 threads
3084 (let ((hashtb (gnus-make-hashtable 1024))
3085 (prev threads)
3086 (result threads)
3087 subject hthread whole-subject)
3088 (while threads
3089 (setq subject (gnus-general-simplify-subject
3090 (setq whole-subject (mail-header-subject
3091 (caar threads)))))
3092 (when subject
3093 (if (setq hthread (gnus-gethash subject hashtb))
3094 (progn
3095 ;; We enter a dummy root into the thread, if we
3096 ;; haven't done that already.
3097 (unless (stringp (caar hthread))
3098 (setcar hthread (list whole-subject (car hthread))))
3099 ;; We add this new gathered thread to this gathered
3100 ;; thread.
3101 (setcdr (car hthread)
3102 (nconc (cdar hthread) (list (car threads))))
3103 ;; Remove it from the list of threads.
3104 (setcdr prev (cdr threads))
3105 (setq threads prev))
3106 ;; Enter this thread into the hash table.
3107 (gnus-sethash subject threads hashtb)))
3108 (setq prev threads)
3109 (setq threads (cdr threads)))
3110 result)))
3111
3112(defun gnus-gather-threads-by-references (threads)
3113 "Gather threads by looking at References headers."
3114 (let ((idhashtb (gnus-make-hashtable 1024))
3115 (thhashtb (gnus-make-hashtable 1024))
3116 (prev threads)
3117 (result threads)
3118 ids references id gthread gid entered ref)
3119 (while threads
3120 (when (setq references (mail-header-references (caar threads)))
3121 (setq id (mail-header-id (caar threads))
3122 ids (gnus-split-references references)
3123 entered nil)
3124 (while (setq ref (pop ids))
3125 (setq ids (delete ref ids))
3126 (if (not (setq gid (gnus-gethash ref idhashtb)))
3127 (progn
3128 (gnus-sethash ref id idhashtb)
3129 (gnus-sethash id threads thhashtb))
3130 (setq gthread (gnus-gethash gid thhashtb))
3131 (unless entered
3132 ;; We enter a dummy root into the thread, if we
3133 ;; haven't done that already.
3134 (unless (stringp (caar gthread))
3135 (setcar gthread (list (mail-header-subject (caar gthread))
3136 (car gthread))))
3137 ;; We add this new gathered thread to this gathered
3138 ;; thread.
3139 (setcdr (car gthread)
3140 (nconc (cdar gthread) (list (car threads)))))
3141 ;; Add it into the thread hash table.
3142 (gnus-sethash id gthread thhashtb)
3143 (setq entered t)
3144 ;; Remove it from the list of threads.
3145 (setcdr prev (cdr threads))
3146 (setq threads prev))))
3147 (setq prev threads)
3148 (setq threads (cdr threads)))
3149 result))
3150
3151(defun gnus-sort-gathered-threads (threads)
16409b0b 3152 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI		 3153 (let ((result threads))
3154 (while threads
3155 (when (stringp (caar threads))
3156 (setcdr (car threads)
16409b0b 3157 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI		 3158 (setq threads (cdr threads)))
3159 result))
3160
3161(defun gnus-thread-loop-p (root thread)
3162 "Say whether ROOT is in THREAD."
3163 (let ((stack (list thread))
3164 (infloop 0)
3165 th)
3166 (while (setq thread (pop stack))
3167 (setq th (cdr thread))
3168 (while (and th
3169 (not (eq (caar th) root)))
3170 (pop th))
3171 (if th
3172 ;; We have found a loop.
3173 (let (ref-dep)
3174 (setcdr thread (delq (car th) (cdr thread)))
3175 (if (boundp (setq ref-dep (intern "none"
3176 gnus-newsgroup-dependencies)))
3177 (setcdr (symbol-value ref-dep)
3178 (nconc (cdr (symbol-value ref-dep))
3179 (list (car th))))
3180 (set ref-dep (list nil (car th))))
3181 (setq infloop 1
3182 stack nil))
3183 ;; Push all the subthreads onto the stack.
3184 (push (cdr thread) stack)))
3185 infloop))
3186
3187(defun gnus-make-threads ()
3188 "Go through the dependency hashtb and find the roots. Return all threads."
3189 (let (threads)
3190 (while (catch 'infloop
3191 (mapatoms
3192 (lambda (refs)
3193 ;; Deal with self-referencing References loops.
3194 (when (and (car (symbol-value refs))
3195 (not (zerop
3196 (apply
3197 '+
3198 (mapcar
3199 (lambda (thread)
3200 (gnus-thread-loop-p
3201 (car (symbol-value refs)) thread))
3202 (cdr (symbol-value refs)))))))
3203 (setq threads nil)
3204 (throw 'infloop t))
3205 (unless (car (symbol-value refs))
3206 ;; These threads do not refer back to any other articles,
3207 ;; so they're roots.
3208 (setq threads (append (cdr (symbol-value refs)) threads))))
3209 gnus-newsgroup-dependencies)))
3210 threads))
3211
6748645f 3212;; Build the thread tree.
16409b0b 3213(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI		 3214 "Enter HEADER into the DEPENDENCIES table if it is not already there.
3215
3216If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
3217if it was already present.
3218
3219If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
3220will not be entered in the DEPENDENCIES table. Otherwise duplicate
3221Message-IDs will be renamed be renamed to a unique Message-ID before
3222being entered.
3223
3224Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
3225 (let* ((id (mail-header-id header))
3226 (id-dep (and id (intern id dependencies)))
3227 ref ref-dep ref-header)
3228 ;; Enter this `header' in the `dependencies' table.
3229 (cond
3230 ((not id-dep)
3231 (setq header nil))
3232 ;; The first two cases do the normal part: enter a new `header'
3233 ;; in the `dependencies' table.
3234 ((not (boundp id-dep))
3235 (set id-dep (list header)))
3236 ((null (car (symbol-value id-dep)))
3237 (setcar (symbol-value id-dep) header))
3238
3239 ;; From here the `header' was already present in the
3240 ;; `dependencies' table.
3241 (force-new
3242 ;; Overrides an existing entry;
3243 ;; just set the header part of the entry.
3244 (setcar (symbol-value id-dep) header))
3245
3246 ;; Renames the existing `header' to a unique Message-ID.
3247 ((not gnus-summary-ignore-duplicates)
3248 ;; An article with this Message-ID has already been seen.
3249 ;; We rename the Message-ID.
3250 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
3251 (list header))
3252 (mail-header-set-id header id))
3253
3254 ;; The last case ignores an existing entry, except it adds any
3255 ;; additional Xrefs (in case the two articles came from different
3256 ;; servers.
3257 ;; Also sets `header' to `nil' meaning that the `dependencies'
3258 ;; table was *not* modified.
3259 (t
3260 (mail-header-set-xref
3261 (car (symbol-value id-dep))
3262 (concat (or (mail-header-xref (car (symbol-value id-dep)))
3263 "")
3264 (or (mail-header-xref header) "")))
3265 (setq header nil)))
3266
3267 (when header
3268 ;; First check if that we are not creating a References loop.
3269 (setq ref (gnus-parent-id (mail-header-references header)))
3270 (while (and ref
3271 (setq ref-dep (intern-soft ref dependencies))
3272 (boundp ref-dep)
3273 (setq ref-header (car (symbol-value ref-dep))))
3274 (if (string= id ref)
3275 ;; Yuk! This is a reference loop. Make the article be a
3276 ;; root article.
3277 (progn
3278 (mail-header-set-references (car (symbol-value id-dep)) "none")
3279 (setq ref nil))
3280 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
3281 (setq ref (gnus-parent-id (mail-header-references header)))
3282 (setq ref-dep (intern (or ref "none") dependencies))
3283 (if (boundp ref-dep)
3284 (setcdr (symbol-value ref-dep)
3285 (nconc (cdr (symbol-value ref-dep))
3286 (list (symbol-value id-dep))))
3287 (set ref-dep (list nil (symbol-value id-dep)))))
3288 header))
3289
eec82323
LMI		 3290(defun gnus-build-sparse-threads ()
3291 (let ((headers gnus-newsgroup-headers)
16409b0b 3292 (mail-parse-charset gnus-newsgroup-charset)
6748645f 3293 (gnus-summary-ignore-duplicates t)
eec82323 3294 header references generation relations
6748645f 3295 subject child end new-child date)
eec82323
LMI		 3296 ;; First we create an alist of generations/relations, where
3297 ;; generations is how much we trust the relation, and the relation
3298 ;; is parent/child.
3299 (gnus-message 7 "Making sparse threads...")
3300 (save-excursion
3301 (nnheader-set-temp-buffer " *gnus sparse threads*")
3302 (while (setq header (pop headers))
3303 (when (and (setq references (mail-header-references header))
3304 (not (string= references "")))
3305 (insert references)
3306 (setq child (mail-header-id header)
6748645f
LMI		 3307 subject (mail-header-subject header)
3308 date (mail-header-date header)
3309 generation 0)
eec82323
LMI		 3310 (while (search-backward ">" nil t)
3311 (setq end (1+ (point)))
3312 (when (search-backward "<" nil t)
6748645f 3313 (setq new-child (buffer-substring (point) end))
eec82323 3314 (push (list (incf generation)
6748645f
LMI		 3315 child (setq child new-child)
3316 subject date)
eec82323 3317 relations)))
6748645f
LMI		 3318 (when child
3319 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI		 3320 (erase-buffer)))
3321 (kill-buffer (current-buffer)))
3322 ;; Sort over trustworthiness.
6748645f
LMI		 3323 (mapcar
3324 (lambda (relation)
3325 (when (gnus-dependencies-add-header
3326 (make-full-mail-header
3327 gnus-reffed-article-number
3328 (nth 3 relation) "" (or (nth 4 relation) "")
3329 (nth 1 relation)
3330 (or (nth 2 relation) "") 0 0 "")
3331 gnus-newsgroup-dependencies nil)
3332 (push gnus-reffed-article-number gnus-newsgroup-limit)
3333 (push gnus-reffed-article-number gnus-newsgroup-sparse)
3334 (push (cons gnus-reffed-article-number gnus-sparse-mark)
3335 gnus-newsgroup-reads)
3336 (decf gnus-reffed-article-number)))
3337 (sort relations 'car-less-than-car))
eec82323
LMI		 3338 (gnus-message 7 "Making sparse threads...done")))
3339
3340(defun gnus-build-old-threads ()
3341 ;; Look at all the articles that refer back to old articles, and
3342 ;; fetch the headers for the articles that aren't there. This will
3343 ;; build complete threads - if the roots haven't been expired by the
3344 ;; server, that is.
16409b0b
GM		 3345 (let ((mail-parse-charset gnus-newsgroup-charset)
3346 id heads)
eec82323
LMI		 3347 (mapatoms
3348 (lambda (refs)
3349 (when (not (car (symbol-value refs)))
3350 (setq heads (cdr (symbol-value refs)))
3351 (while heads
3352 (if (memq (mail-header-number (caar heads))
3353 gnus-newsgroup-dormant)
3354 (setq heads (cdr heads))
3355 (setq id (symbol-name refs))
3356 (while (and (setq id (gnus-build-get-header id))
6748645f 3357 (not (car (gnus-id-to-thread id)))))
eec82323
LMI		 3358 (setq heads nil)))))
3359 gnus-newsgroup-dependencies)))
3360
6748645f
LMI		 3361;; This function has to be called with point after the article number
3362;; on the beginning of the line.
3363(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
3364 (let ((eol (gnus-point-at-eol))
3365 (buffer (current-buffer))
3366 header)
3367
3368 ;; overview: [num subject from date id refs chars lines misc]
3369 (unwind-protect
3370 (progn
3371 (narrow-to-region (point) eol)
3372 (unless (eobp)
3373 (forward-char))
3374
3375 (setq header
3376 (make-full-mail-header
3377 number ; number
16409b0b
GM		 3378 (funcall gnus-decode-encoded-word-function
3379 (nnheader-nov-field)) ; subject
3380 (funcall gnus-decode-encoded-word-function
3381 (nnheader-nov-field)) ; from
3382 (nnheader-nov-field) ; date
3383 (nnheader-nov-read-message-id) ; id
3384 (nnheader-nov-field) ; refs
3385 (nnheader-nov-read-integer) ; chars
3386 (nnheader-nov-read-integer) ; lines
3387 (unless (eobp)
8b93df01
DL		 3388 (if (looking-at "Xref: ")
3389 (goto-char (match-end 0)))
3390 (nnheader-nov-field)) ; Xref
16409b0b 3391 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI		 3392
3393 (widen))
3394
3395 (when gnus-alter-header-function
3396 (funcall gnus-alter-header-function header))
3397 (gnus-dependencies-add-header header dependencies force-new)))
3398
eec82323 3399(defun gnus-build-get-header (id)
16409b0b
GM		 3400 "Look through the buffer of NOV lines and find the header to ID.
3401Enter this line into the dependencies hash table, and return
3402the id of the parent article (if any)."
eec82323
LMI		 3403 (let ((deps gnus-newsgroup-dependencies)
3404 found header)
3405 (prog1
3406 (save-excursion
3407 (set-buffer nntp-server-buffer)
3408 (let ((case-fold-search nil))
3409 (goto-char (point-min))
3410 (while (and (not found)
3411 (search-forward id nil t))
3412 (beginning-of-line)
3413 (setq found (looking-at
3414 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
3415 (regexp-quote id))))
3416 (or found (beginning-of-line 2)))
3417 (when found
3418 (beginning-of-line)
3419 (and
3420 (setq header (gnus-nov-parse-line
3421 (read (current-buffer)) deps))
3422 (gnus-parent-id (mail-header-references header))))))
3423 (when header
3424 (let ((number (mail-header-number header)))
3425 (push number gnus-newsgroup-limit)
3426 (push header gnus-newsgroup-headers)
3427 (if (memq number gnus-newsgroup-unselected)
3428 (progn
3429 (push number gnus-newsgroup-unreads)
3430 (setq gnus-newsgroup-unselected
3431 (delq number gnus-newsgroup-unselected)))
3432 (push number gnus-newsgroup-ancient)))))))
3433
6748645f
LMI		 3434(defun gnus-build-all-threads ()
3435 "Read all the headers."
3436 (let ((gnus-summary-ignore-duplicates t)
16409b0b 3437 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI		 3438 (dependencies gnus-newsgroup-dependencies)
3439 header article)
3440 (save-excursion
3441 (set-buffer nntp-server-buffer)
3442 (let ((case-fold-search nil))
3443 (goto-char (point-min))
3444 (while (not (eobp))
3445 (ignore-errors
3446 (setq article (read (current-buffer))
16409b0b 3447 header (gnus-nov-parse-line article dependencies)))
6748645f
LMI		 3448 (when header
3449 (save-excursion
3450 (set-buffer gnus-summary-buffer)
3451 (push header gnus-newsgroup-headers)
3452 (if (memq (setq article (mail-header-number header))
3453 gnus-newsgroup-unselected)
3454 (progn
3455 (push article gnus-newsgroup-unreads)
3456 (setq gnus-newsgroup-unselected
3457 (delq article gnus-newsgroup-unselected)))
3458 (push article gnus-newsgroup-ancient)))
3459 (forward-line 1)))))))
3460
eec82323
LMI		 3461(defun gnus-summary-update-article-line (article header)
3462 "Update the line for ARTICLE using HEADERS."
3463 (let* ((id (mail-header-id header))
3464 (thread (gnus-id-to-thread id)))
3465 (unless thread
3466 (error "Article in no thread"))
3467 ;; Update the thread.
3468 (setcar thread header)
3469 (gnus-summary-goto-subject article)
3470 (let* ((datal (gnus-data-find-list article))
3471 (data (car datal))
3472 (length (when (cdr datal)
3473 (- (gnus-data-pos data)
3474 (gnus-data-pos (cadr datal)))))
3475 (buffer-read-only nil)
3476 (level (gnus-summary-thread-level)))
3477 (gnus-delete-line)
3478 (gnus-summary-insert-line
3479 header level nil (gnus-article-mark article)
3480 (memq article gnus-newsgroup-replied)
3481 (memq article gnus-newsgroup-expirable)
3482 ;; Only insert the Subject string when it's different
3483 ;; from the previous Subject string.
16409b0b
GM		 3484 (if (and
3485 gnus-show-threads
3486 (gnus-subject-equal
3487 (condition-case ()
3488 (mail-header-subject
3489 (gnus-data-header
3490 (cadr
3491 (gnus-data-find-list
3492 article
3493 (gnus-data-list t)))))
3494 ;; Error on the side of excessive subjects.
3495 (error ""))
3496 (mail-header-subject header)))
eec82323
LMI		 3497 ""
3498 (mail-header-subject header))
3499 nil (cdr (assq article gnus-newsgroup-scored))
3500 (memq article gnus-newsgroup-processable))
3501 (when length
3502 (gnus-data-update-list
3503 (cdr datal) (- length (- (gnus-data-pos data) (point))))))))
3504
3505(defun gnus-summary-update-article (article &optional iheader)
3506 "Update ARTICLE in the summary buffer."
3507 (set-buffer gnus-summary-buffer)
6748645f 3508 (let* ((header (gnus-summary-article-header article))
eec82323
LMI		 3509 (id (mail-header-id header))
3510 (data (gnus-data-find article))
3511 (thread (gnus-id-to-thread id))
3512 (references (mail-header-references header))
3513 (parent
3514 (gnus-id-to-thread
3515 (or (gnus-parent-id
3516 (when (and references
3517 (not (equal "" references)))
3518 references))
3519 "none")))
3520 (buffer-read-only nil)
6748645f 3521 (old (car thread)))
eec82323 3522 (when thread
eec82323 3523 (unless iheader
6748645f
LMI		 3524 (setcar thread nil)
3525 (when parent
3526 (delq thread parent)))
3527 (if (gnus-summary-insert-subject id header)
eec82323
LMI		 3528 ;; Set the (possibly) new article number in the data structure.
3529 (gnus-data-set-number data (gnus-id-to-article id))
3530 (setcar thread old)
3531 nil))))
3532
6748645f
LMI		 3533(defun gnus-rebuild-thread (id &optional line)
3534 "Rebuild the thread containing ID.
3535If LINE, insert the rebuilt thread starting on line LINE."
eec82323
LMI		 3536 (let ((buffer-read-only nil)
3537 old-pos current thread data)
3538 (if (not gnus-show-threads)
3539 (setq thread (list (car (gnus-id-to-thread id))))
3540 ;; Get the thread this article is part of.
3541 (setq thread (gnus-remove-thread id)))
3542 (setq old-pos (gnus-point-at-bol))
3543 (setq current (save-excursion
3544 (and (zerop (forward-line -1))
3545 (gnus-summary-article-number))))
3546 ;; If this is a gathered thread, we have to go some re-gathering.
3547 (when (stringp (car thread))
3548 (let ((subject (car thread))
3549 roots thr)
3550 (setq thread (cdr thread))
3551 (while thread
3552 (unless (memq (setq thr (gnus-id-to-thread
3553 (gnus-root-id
3554 (mail-header-id (caar thread)))))
3555 roots)
3556 (push thr roots))
3557 (setq thread (cdr thread)))
3558 ;; We now have all (unique) roots.
3559 (if (= (length roots) 1)
3560 ;; All the loose roots are now one solid root.
3561 (setq thread (car roots))
3562 (setq thread (cons subject (gnus-sort-threads roots))))))
3563 (let (threads)
3564 ;; We then insert this thread into the summary buffer.
6748645f
LMI		 3565 (when line
3566 (goto-char (point-min))
3567 (forward-line (1- line)))
eec82323
LMI		 3568 (let (gnus-newsgroup-data gnus-newsgroup-threads)
3569 (if gnus-show-threads
3570 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
3571 (gnus-summary-prepare-unthreaded thread))
3572 (setq data (nreverse gnus-newsgroup-data))
3573 (setq threads gnus-newsgroup-threads))
3574 ;; We splice the new data into the data structure.
6748645f
LMI		 3575 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
3576 ;;!!! then we want to insert at the beginning of the buffer.
3577 ;;!!! That happens to be true with Gnus now, but that may
3578 ;;!!! change in the future. Perhaps.
3579 (gnus-data-enter-list
3580 (if line nil current) data (- (point) old-pos))
3581 (setq gnus-newsgroup-threads
3582 (nconc threads gnus-newsgroup-threads))
3583 (gnus-data-compute-positions))))
eec82323
LMI		 3584
3585(defun gnus-number-to-header (number)
3586 "Return the header for article NUMBER."
3587 (let ((headers gnus-newsgroup-headers))
3588 (while (and headers
3589 (not (= number (mail-header-number (car headers)))))
3590 (pop headers))
3591 (when headers
3592 (car headers))))
3593
6748645f 3594(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI		 3595 "Return the headers of the GENERATIONeth parent of HEADERS."
3596 (unless generation
3597 (setq generation 1))
a8151ef7 3598 (let ((parent t)
6748645f 3599 (headers in-headers)
a8151ef7 3600 references)
6748645f
LMI		 3601 (while (and parent
3602 (not (zerop generation))
3603 (setq references (mail-header-references headers)))
3604 (setq headers (if (and references
3605 (setq parent (gnus-parent-id references)))
3606 (car (gnus-id-to-thread parent))
3607 nil))
3608 (decf generation))
3609 (and (not (eq headers in-headers))
3610 headers)))
eec82323
LMI		 3611
3612(defun gnus-id-to-thread (id)
3613 "Return the (sub-)thread where ID appears."
3614 (gnus-gethash id gnus-newsgroup-dependencies))
3615
3616(defun gnus-id-to-article (id)
3617 "Return the article number of ID."
3618 (let ((thread (gnus-id-to-thread id)))
3619 (when (and thread
3620 (car thread))
3621 (mail-header-number (car thread)))))
3622
3623(defun gnus-id-to-header (id)
3624 "Return the article headers of ID."
3625 (car (gnus-id-to-thread id)))
3626
3627(defun gnus-article-displayed-root-p (article)
3628 "Say whether ARTICLE is a root(ish) article."
3629 (let ((level (gnus-summary-thread-level article))
3630 (refs (mail-header-references (gnus-summary-article-header article)))
3631 particle)
3632 (cond
3633 ((null level) nil)
3634 ((zerop level) t)
3635 ((null refs) t)
3636 ((null (gnus-parent-id refs)) t)
3637 ((and (= 1 level)
3638 (null (setq particle (gnus-id-to-article
3639 (gnus-parent-id refs))))
3640 (null (gnus-summary-thread-level particle)))))))
3641
3642(defun gnus-root-id (id)
3643 "Return the id of the root of the thread where ID appears."
3644 (let (last-id prev)
6748645f 3645 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI		 3646 (setq last-id id
3647 id (gnus-parent-id (mail-header-references prev))))
3648 last-id))
3649
6748645f
LMI		 3650(defun gnus-articles-in-thread (thread)
3651 "Return the list of articles in THREAD."
3652 (cons (mail-header-number (car thread))
3653 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
3654
eec82323
LMI		 3655(defun gnus-remove-thread (id &optional dont-remove)
3656 "Remove the thread that has ID in it."
6748645f 3657 (let (headers thread last-id)
eec82323 3658 ;; First go up in this thread until we find the root.
6748645f
LMI		 3659 (setq last-id (gnus-root-id id)
3660 headers (message-flatten-list (gnus-id-to-thread last-id)))
eec82323
LMI		 3661 ;; We have now found the real root of this thread. It might have
3662 ;; been gathered into some loose thread, so we have to search
3663 ;; through the threads to find the thread we wanted.
3664 (let ((threads gnus-newsgroup-threads)
3665 sub)
3666 (while threads
3667 (setq sub (car threads))
3668 (if (stringp (car sub))
3669 ;; This is a gathered thread, so we look at the roots
3670 ;; below it to find whether this article is in this
3671 ;; gathered root.
3672 (progn
3673 (setq sub (cdr sub))
3674 (while sub
3675 (when (member (caar sub) headers)
3676 (setq thread (car threads)
3677 threads nil
3678 sub nil))
3679 (setq sub (cdr sub))))
3680 ;; It's an ordinary thread, so we check it.
3681 (when (eq (car sub) (car headers))
3682 (setq thread sub
3683 threads nil)))
3684 (setq threads (cdr threads)))
3685 ;; If this article is in no thread, then it's a root.
3686 (if thread
3687 (unless dont-remove
3688 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 3689 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI		 3690 (when thread
3691 (prog1
3692 thread ; We return this thread.
3693 (unless dont-remove
3694 (if (stringp (car thread))
3695 (progn
3696 ;; If we use dummy roots, then we have to remove the
3697 ;; dummy root as well.
3698 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI		 3699 ;; We go to the dummy root by going to
3700 ;; the first sub-"thread", and then one line up.
3701 (gnus-summary-goto-article
3702 (mail-header-number (caadr thread)))
3703 (forward-line -1)
eec82323
LMI		 3704 (gnus-delete-line)
3705 (gnus-data-compute-positions))
3706 (setq thread (cdr thread))
3707 (while thread
3708 (gnus-remove-thread-1 (car thread))
3709 (setq thread (cdr thread))))
3710 (gnus-remove-thread-1 thread))))))))
3711
3712(defun gnus-remove-thread-1 (thread)
3713 "Remove the thread THREAD recursively."
3714 (let ((number (mail-header-number (pop thread)))
3715 d)
3716 (setq thread (reverse thread))
3717 (while thread
3718 (gnus-remove-thread-1 (pop thread)))
3719 (when (setq d (gnus-data-find number))
3720 (goto-char (gnus-data-pos d))
16409b0b 3721 (gnus-summary-show-thread)
eec82323
LMI		 3722 (gnus-data-remove
3723 number
3724 (- (gnus-point-at-bol)
3725 (prog1
3726 (1+ (gnus-point-at-eol))
3727 (gnus-delete-line)))))))
3728
16409b0b
GM		 3729(defun gnus-sort-threads-1 (threads func)
3730 (sort (mapcar (lambda (thread)
3731 (cons (car thread)
3732 (and (cdr thread)
3733 (gnus-sort-threads-1 (cdr thread) func))))
3734 threads) func))
3735
eec82323
LMI		 3736(defun gnus-sort-threads (threads)
3737 "Sort THREADS."
3738 (if (not gnus-thread-sort-functions)
3739 threads
6748645f 3740 (gnus-message 8 "Sorting threads...")
eec82323 3741 (prog1
16409b0b
GM		 3742 (gnus-sort-threads-1
3743 threads
3744 (gnus-make-sort-function gnus-thread-sort-functions))
6748645f 3745 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI		 3746
3747(defun gnus-sort-articles (articles)
3748 "Sort ARTICLES."
3749 (when gnus-article-sort-functions
3750 (gnus-message 7 "Sorting articles...")
3751 (prog1
3752 (setq gnus-newsgroup-headers
3753 (sort articles (gnus-make-sort-function
3754 gnus-article-sort-functions)))
3755 (gnus-message 7 "Sorting articles...done"))))
3756
3757;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
3758(defmacro gnus-thread-header (thread)
16409b0b
GM		 3759 "Return header of first article in THREAD.
3760Note that THREAD must never, ever be anything else than a variable -
3761using some other form will lead to serious barfage."
eec82323
LMI		 3762 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
3763 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 3764 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI		 3765 (vector thread) 2))
3766
3767(defsubst gnus-article-sort-by-number (h1 h2)
3768 "Sort articles by article number."
3769 (< (mail-header-number h1)
3770 (mail-header-number h2)))
3771
3772(defun gnus-thread-sort-by-number (h1 h2)
3773 "Sort threads by root article number."
3774 (gnus-article-sort-by-number
3775 (gnus-thread-header h1) (gnus-thread-header h2)))
3776
3777(defsubst gnus-article-sort-by-lines (h1 h2)
3778 "Sort articles by article Lines header."
3779 (< (mail-header-lines h1)
3780 (mail-header-lines h2)))
3781
3782(defun gnus-thread-sort-by-lines (h1 h2)
3783 "Sort threads by root article Lines header."
3784 (gnus-article-sort-by-lines
3785 (gnus-thread-header h1) (gnus-thread-header h2)))
3786
16409b0b
GM		 3787(defsubst gnus-article-sort-by-chars (h1 h2)
3788 "Sort articles by octet length."
3789 (< (mail-header-chars h1)
3790 (mail-header-chars h2)))
3791
3792(defun gnus-thread-sort-by-chars (h1 h2)
3793 "Sort threads by root article octet length."
3794 (gnus-article-sort-by-chars
3795 (gnus-thread-header h1) (gnus-thread-header h2)))
3796
eec82323
LMI		 3797(defsubst gnus-article-sort-by-author (h1 h2)
3798 "Sort articles by root author."
3799 (string-lessp
3800 (let ((extract (funcall
3801 gnus-extract-address-components
3802 (mail-header-from h1))))
3803 (or (car extract) (cadr extract) ""))
3804 (let ((extract (funcall
3805 gnus-extract-address-components
3806 (mail-header-from h2))))
3807 (or (car extract) (cadr extract) ""))))
3808
3809(defun gnus-thread-sort-by-author (h1 h2)
3810 "Sort threads by root author."
3811 (gnus-article-sort-by-author
3812 (gnus-thread-header h1) (gnus-thread-header h2)))
3813
3814(defsubst gnus-article-sort-by-subject (h1 h2)
3815 "Sort articles by root subject."
3816 (string-lessp
3817 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
3818 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
3819
3820(defun gnus-thread-sort-by-subject (h1 h2)
3821 "Sort threads by root subject."
3822 (gnus-article-sort-by-subject
3823 (gnus-thread-header h1) (gnus-thread-header h2)))
3824
3825(defsubst gnus-article-sort-by-date (h1 h2)
3826 "Sort articles by root article date."
16409b0b 3827 (time-less-p
eec82323
LMI		 3828 (gnus-date-get-time (mail-header-date h1))
3829 (gnus-date-get-time (mail-header-date h2))))
3830
3831(defun gnus-thread-sort-by-date (h1 h2)
3832 "Sort threads by root article date."
3833 (gnus-article-sort-by-date
3834 (gnus-thread-header h1) (gnus-thread-header h2)))
3835
3836(defsubst gnus-article-sort-by-score (h1 h2)
3837 "Sort articles by root article score.
3838Unscored articles will be counted as having a score of zero."
3839 (> (or (cdr (assq (mail-header-number h1)
3840 gnus-newsgroup-scored))
3841 gnus-summary-default-score 0)
3842 (or (cdr (assq (mail-header-number h2)
3843 gnus-newsgroup-scored))
3844 gnus-summary-default-score 0)))
3845
3846(defun gnus-thread-sort-by-score (h1 h2)
3847 "Sort threads by root article score."
3848 (gnus-article-sort-by-score
3849 (gnus-thread-header h1) (gnus-thread-header h2)))
3850
3851(defun gnus-thread-sort-by-total-score (h1 h2)
3852 "Sort threads by the sum of all scores in the thread.
3853Unscored articles will be counted as having a score of zero."
3854 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
3855
3856(defun gnus-thread-total-score (thread)
16409b0b 3857 ;; This function find the total score of THREAD.
eec82323
LMI		 3858 (cond ((null thread)
3859 0)
3860 ((consp thread)
3861 (if (stringp (car thread))
3862 (apply gnus-thread-score-function 0
3863 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
3864 (gnus-thread-total-score-1 thread)))
3865 (t
3866 (gnus-thread-total-score-1 (list thread)))))
3867
3868(defun gnus-thread-total-score-1 (root)
3869 ;; This function find the total score of the thread below ROOT.
3870 (setq root (car root))
3871 (apply gnus-thread-score-function
3872 (or (append
3873 (mapcar 'gnus-thread-total-score
6748645f 3874 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI		 3875 (when (> (mail-header-number root) 0)
3876 (list (or (cdr (assq (mail-header-number root)
3877 gnus-newsgroup-scored))
3878 gnus-summary-default-score 0))))
3879 (list gnus-summary-default-score)
3880 '(0))))
3881
3882;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
3883(defvar gnus-tmp-prev-subject nil)
3884(defvar gnus-tmp-false-parent nil)
3885(defvar gnus-tmp-root-expunged nil)
3886(defvar gnus-tmp-dummy-line nil)
3887
60bd5589 3888(eval-when-compile (defvar gnus-tmp-header))
16409b0b
GM		 3889(defun gnus-extra-header (type &optional header)
3890 "Return the extra header of TYPE."
3891 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
3892 ""))
3893
eec82323
LMI		 3894(defun gnus-summary-prepare-threads (threads)
3895 "Prepare summary buffer from THREADS and indentation LEVEL.
3896THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
3897or a straight list of headers."
3898 (gnus-message 7 "Generating summary...")
3899
3900 (setq gnus-newsgroup-threads threads)
3901 (beginning-of-line)
3902
3903 (let ((gnus-tmp-level 0)
3904 (default-score (or gnus-summary-default-score 0))
3905 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
3906 thread number subject stack state gnus-tmp-gathered beg-match
3907 new-roots gnus-tmp-new-adopts thread-end
3908 gnus-tmp-header gnus-tmp-unread
3909 gnus-tmp-replied gnus-tmp-subject-or-nil
3910 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
3911 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
3912 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket)
3913
3914 (setq gnus-tmp-prev-subject nil)
3915
3916 (if (vectorp (car threads))
3917 ;; If this is a straight (sic) list of headers, then a
3918 ;; threaded summary display isn't required, so we just create
3919 ;; an unthreaded one.
3920 (gnus-summary-prepare-unthreaded threads)
3921
3922 ;; Do the threaded display.
3923
3924 (while (or threads stack gnus-tmp-new-adopts new-roots)
3925
3926 (if (and (= gnus-tmp-level 0)
eec82323
LMI		 3927 (or (not stack)
3928 (= (caar stack) 0))
3929 (not gnus-tmp-false-parent)
3930 (or gnus-tmp-new-adopts new-roots))
3931 (if gnus-tmp-new-adopts
3932 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
3933 thread (list (car gnus-tmp-new-adopts))
3934 gnus-tmp-header (caar thread)
3935 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
3936 (when new-roots
3937 (setq thread (list (car new-roots))
3938 gnus-tmp-header (caar thread)
3939 new-roots (cdr new-roots))))
3940
3941 (if threads
3942 ;; If there are some threads, we do them before the
3943 ;; threads on the stack.
3944 (setq thread threads
3945 gnus-tmp-header (caar thread))
3946 ;; There were no current threads, so we pop something off
3947 ;; the stack.
3948 (setq state (car stack)
3949 gnus-tmp-level (car state)
3950 thread (cdr state)
3951 stack (cdr stack)
3952 gnus-tmp-header (caar thread))))
3953
3954 (setq gnus-tmp-false-parent nil)
3955 (setq gnus-tmp-root-expunged nil)
3956 (setq thread-end nil)
3957
3958 (if (stringp gnus-tmp-header)
3959 ;; The header is a dummy root.
3960 (cond
3961 ((eq gnus-summary-make-false-root 'adopt)
3962 ;; We let the first article adopt the rest.
3963 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
3964 (cddar thread)))
3965 (setq gnus-tmp-gathered
3966 (nconc (mapcar
3967 (lambda (h) (mail-header-number (car h)))
3968 (cddar thread))
3969 gnus-tmp-gathered))
3970 (setq thread (cons (list (caar thread)
3971 (cadar thread))
3972 (cdr thread)))
3973 (setq gnus-tmp-level -1
3974 gnus-tmp-false-parent t))
3975 ((eq gnus-summary-make-false-root 'empty)
3976 ;; We print adopted articles with empty subject fields.
3977 (setq gnus-tmp-gathered
3978 (nconc (mapcar
3979 (lambda (h) (mail-header-number (car h)))
3980 (cddar thread))
3981 gnus-tmp-gathered))
3982 (setq gnus-tmp-level -1))
3983 ((eq gnus-summary-make-false-root 'dummy)
3984 ;; We remember that we probably want to output a dummy
3985 ;; root.
3986 (setq gnus-tmp-dummy-line gnus-tmp-header)
3987 (setq gnus-tmp-prev-subject gnus-tmp-header))
3988 (t
3989 ;; We do not make a root for the gathered
3990 ;; sub-threads at all.
3991 (setq gnus-tmp-level -1)))
3992
3993 (setq number (mail-header-number gnus-tmp-header)
3994 subject (mail-header-subject gnus-tmp-header))
3995
3996 (cond
3997 ;; If the thread has changed subject, we might want to make
3998 ;; this subthread into a root.
3999 ((and (null gnus-thread-ignore-subject)
4000 (not (zerop gnus-tmp-level))
4001 gnus-tmp-prev-subject
4002 (not (inline
4003 (gnus-subject-equal gnus-tmp-prev-subject subject))))
4004 (setq new-roots (nconc new-roots (list (car thread)))
4005 thread-end t
4006 gnus-tmp-header nil))
4007 ;; If the article lies outside the current limit,
4008 ;; then we do not display it.
4009 ((not (memq number gnus-newsgroup-limit))
4010 (setq gnus-tmp-gathered
4011 (nconc (mapcar
4012 (lambda (h) (mail-header-number (car h)))
4013 (cdar thread))
4014 gnus-tmp-gathered))
4015 (setq gnus-tmp-new-adopts (if (cdar thread)
4016 (append gnus-tmp-new-adopts
4017 (cdar thread))
4018 gnus-tmp-new-adopts)
4019 thread-end t
4020 gnus-tmp-header nil)
4021 (when (zerop gnus-tmp-level)
4022 (setq gnus-tmp-root-expunged t)))
4023 ;; Perhaps this article is to be marked as read?
4024 ((and gnus-summary-mark-below
4025 (< (or (cdr (assq number gnus-newsgroup-scored))
4026 default-score)
4027 gnus-summary-mark-below)
4028 ;; Don't touch sparse articles.
4029 (not (gnus-summary-article-sparse-p number))
4030 (not (gnus-summary-article-ancient-p number)))
4031 (setq gnus-newsgroup-unreads
4032 (delq number gnus-newsgroup-unreads))
4033 (if gnus-newsgroup-auto-expire
4034 (push number gnus-newsgroup-expirable)
4035 (push (cons number gnus-low-score-mark)
4036 gnus-newsgroup-reads))))
4037
4038 (when gnus-tmp-header
4039 ;; We may have an old dummy line to output before this
4040 ;; article.
6748645f
LMI		 4041 (when (and gnus-tmp-dummy-line
4042 (gnus-subject-equal
4043 gnus-tmp-dummy-line
4044 (mail-header-subject gnus-tmp-header)))
eec82323
LMI		 4045 (gnus-summary-insert-dummy-line
4046 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
4047 (setq gnus-tmp-dummy-line nil))
4048
4049 ;; Compute the mark.
4050 (setq gnus-tmp-unread (gnus-article-mark number))
4051
4052 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
4053 gnus-tmp-header gnus-tmp-level)
4054 gnus-newsgroup-data)
4055
4056 ;; Actually insert the line.
4057 (setq
4058 gnus-tmp-subject-or-nil
4059 (cond
4060 ((and gnus-thread-ignore-subject
4061 gnus-tmp-prev-subject
4062 (not (inline (gnus-subject-equal
4063 gnus-tmp-prev-subject subject))))
4064 subject)
4065 ((zerop gnus-tmp-level)
4066 (if (and (eq gnus-summary-make-false-root 'empty)
4067 (memq number gnus-tmp-gathered)
4068 gnus-tmp-prev-subject
4069 (inline (gnus-subject-equal
4070 gnus-tmp-prev-subject subject)))
4071 gnus-summary-same-subject
4072 subject))
4073 (t gnus-summary-same-subject)))
4074 (if (and (eq gnus-summary-make-false-root 'adopt)
4075 (= gnus-tmp-level 1)
4076 (memq number gnus-tmp-gathered))
4077 (setq gnus-tmp-opening-bracket ?\<
4078 gnus-tmp-closing-bracket ?\>)
4079 (setq gnus-tmp-opening-bracket ?\[
4080 gnus-tmp-closing-bracket ?\]))
4081 (setq
4082 gnus-tmp-indentation
4083 (aref gnus-thread-indent-array gnus-tmp-level)
4084 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
4085 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
4086 gnus-summary-default-score 0)
4087 gnus-tmp-score-char
4088 (if (or (null gnus-summary-default-score)
4089 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
4090 gnus-summary-zcore-fuzz))
16409b0b 4091 ? ;Whitespace
eec82323
LMI		 4092 (if (< gnus-tmp-score gnus-summary-default-score)
4093 gnus-score-below-mark gnus-score-over-mark))
4094 gnus-tmp-replied
4095 (cond ((memq number gnus-newsgroup-processable)
4096 gnus-process-mark)
4097 ((memq number gnus-newsgroup-cached)
4098 gnus-cached-mark)
4099 ((memq number gnus-newsgroup-replied)
4100 gnus-replied-mark)
4101 ((memq number gnus-newsgroup-saved)
4102 gnus-saved-mark)
4103 (t gnus-unread-mark))
4104 gnus-tmp-from (mail-header-from gnus-tmp-header)
4105 gnus-tmp-name
4106 (cond
4107 ((string-match "<[^>]+> *$" gnus-tmp-from)
4108 (setq beg-match (match-beginning 0))
4109 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
4110 (substring gnus-tmp-from (1+ (match-beginning 0))
4111 (1- (match-end 0))))
4112 (substring gnus-tmp-from 0 beg-match)))
4113 ((string-match "(.+)" gnus-tmp-from)
4114 (substring gnus-tmp-from
4115 (1+ (match-beginning 0)) (1- (match-end 0))))
4116 (t gnus-tmp-from)))
4117 (when (string= gnus-tmp-name "")
4118 (setq gnus-tmp-name gnus-tmp-from))
4119 (unless (numberp gnus-tmp-lines)
4120 (setq gnus-tmp-lines 0))
16409b0b 4121 (gnus-put-text-property
eec82323
LMI		 4122 (point)
4123 (progn (eval gnus-summary-line-format-spec) (point))
4124 'gnus-number number)
4125 (when gnus-visual-p
4126 (forward-line -1)
6748645f 4127 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI		 4128 (forward-line 1))
4129
4130 (setq gnus-tmp-prev-subject subject)))
4131
4132 (when (nth 1 thread)
4133 (push (cons (max 0 gnus-tmp-level) (nthcdr 1 thread)) stack))
4134 (incf gnus-tmp-level)
4135 (setq threads (if thread-end nil (cdar thread)))
4136 (unless threads
4137 (setq gnus-tmp-level 0)))))
4138 (gnus-message 7 "Generating summary...done"))
4139
4140(defun gnus-summary-prepare-unthreaded (headers)
4141 "Generate an unthreaded summary buffer based on HEADERS."
4142 (let (header number mark)
4143
4144 (beginning-of-line)
4145
4146 (while headers
4147 ;; We may have to root out some bad articles...
4148 (when (memq (setq number (mail-header-number
4149 (setq header (pop headers))))
4150 gnus-newsgroup-limit)
4151 ;; Mark article as read when it has a low score.
4152 (when (and gnus-summary-mark-below
4153 (< (or (cdr (assq number gnus-newsgroup-scored))
4154 gnus-summary-default-score 0)
4155 gnus-summary-mark-below)
4156 (not (gnus-summary-article-ancient-p number)))
4157 (setq gnus-newsgroup-unreads
4158 (delq number gnus-newsgroup-unreads))
4159 (if gnus-newsgroup-auto-expire
4160 (push number gnus-newsgroup-expirable)
4161 (push (cons number gnus-low-score-mark)
4162 gnus-newsgroup-reads)))
4163
4164 (setq mark (gnus-article-mark number))
4165 (push (gnus-data-make number mark (1+ (point)) header 0)
4166 gnus-newsgroup-data)
4167 (gnus-summary-insert-line
4168 header 0 number
4169 mark (memq number gnus-newsgroup-replied)
4170 (memq number gnus-newsgroup-expirable)
4171 (mail-header-subject header) nil
4172 (cdr (assq number gnus-newsgroup-scored))
4173 (memq number gnus-newsgroup-processable))))))
4174
16409b0b
GM		 4175(defun gnus-summary-remove-list-identifiers ()
4176 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
4177 (let ((regexp (if (stringp gnus-list-identifiers)
4178 gnus-list-identifiers
4179 (mapconcat 'identity gnus-list-identifiers " *\\|"))))
4180 (dolist (header gnus-newsgroup-headers)
4181 (when (string-match (concat "\\(\\(\\(Re: +\\)?\\(" regexp
4182 " *\\)\\)+\\(Re: +\\)?\\)")
4183 (mail-header-subject header))
4184 (mail-header-set-subject
4185 header (concat (substring (mail-header-subject header)
4186 0 (match-beginning 1))
4187 (or
4188 (match-string 3 (mail-header-subject header))
4189 (match-string 5 (mail-header-subject header)))
4190 (substring (mail-header-subject header)
4191 (match-end 1))))))))
4192
6748645f 4193(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 4194 "Select newsgroup GROUP.
6748645f
LMI		 4195If READ-ALL is non-nil, all articles in the group are selected.
4196If SELECT-ARTICLES, only select those articles from GROUP."
eec82323
LMI		 4197 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
4198 ;;!!! Dirty hack; should be removed.
4199 (gnus-summary-ignore-duplicates
6748645f 4200 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI		 4201 t
4202 gnus-summary-ignore-duplicates))
4203 (info (nth 2 entry))
4204 articles fetched-articles cached)
4205
4206 (unless (gnus-check-server
4207 (setq gnus-current-select-method
4208 (gnus-find-method-for-group group)))
4209 (error "Couldn't open server"))
4210
4211 (or (and entry (not (eq (car entry) t))) ; Either it's active...
4212 (gnus-activate-group group) ; Or we can activate it...
4213 (progn ; Or we bug out.
4214 (when (equal major-mode 'gnus-summary-mode)
4215 (kill-buffer (current-buffer)))
4216 (error "Couldn't request group %s: %s"
4217 group (gnus-status-message group))))
4218
4219 (unless (gnus-request-group group t)
4220 (when (equal major-mode 'gnus-summary-mode)
4221 (kill-buffer (current-buffer)))
4222 (error "Couldn't request group %s: %s"
4223 group (gnus-status-message group)))
4224
4225 (setq gnus-newsgroup-name group)
4226 (setq gnus-newsgroup-unselected nil)
4227 (setq gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
16409b0b 4228 (gnus-summary-setup-default-charset)
eec82323
LMI		 4229
4230 ;; Adjust and set lists of article marks.
4231 (when info
4232 (gnus-adjust-marked-articles info))
4233
4234 ;; Kludge to avoid having cached articles nixed out in virtual groups.
4235 (when (gnus-virtual-group-p group)
4236 (setq cached gnus-newsgroup-cached))
4237
4238 (setq gnus-newsgroup-unreads
4239 (gnus-set-difference
4240 (gnus-set-difference gnus-newsgroup-unreads gnus-newsgroup-marked)
4241 gnus-newsgroup-dormant))
4242
4243 (setq gnus-newsgroup-processable nil)
4244
4245 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 4246
6748645f
LMI		 4247 (if (setq articles select-articles)
4248 (setq gnus-newsgroup-unselected
4249 (gnus-sorted-intersection
4250 gnus-newsgroup-unreads
4251 (gnus-sorted-complement gnus-newsgroup-unreads articles)))
4252 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI		 4253
4254 (cond
4255 ((null articles)
4256 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
4257 'quit)
4258 ((eq articles 0) nil)
4259 (t
4260 ;; Init the dependencies hash table.
4261 (setq gnus-newsgroup-dependencies
4262 (gnus-make-hashtable (length articles)))
16409b0b 4263 (gnus-set-global-variables)
eec82323
LMI		 4264 ;; Retrieve the headers and read them in.
4265 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
4266 (setq gnus-newsgroup-headers
4267 (if (eq 'nov
4268 (setq gnus-headers-retrieved-by
4269 (gnus-retrieve-headers
4270 articles gnus-newsgroup-name
4271 ;; We might want to fetch old headers, but
4272 ;; not if there is only 1 article.
6748645f 4273 (and (or (and
eec82323
LMI		 4274 (not (eq gnus-fetch-old-headers 'some))
4275 (not (numberp gnus-fetch-old-headers)))
6748645f
LMI		 4276 (> (length articles) 1))
4277 gnus-fetch-old-headers))))
eec82323
LMI		 4278 (gnus-get-newsgroup-headers-xover
4279 articles nil nil gnus-newsgroup-name t)
4280 (gnus-get-newsgroup-headers)))
4281 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name)
4282
4283 ;; Kludge to avoid having cached articles nixed out in virtual groups.
4284 (when cached
4285 (setq gnus-newsgroup-cached cached))
4286
4287 ;; Suppress duplicates?
4288 (when gnus-suppress-duplicates
4289 (gnus-dup-suppress-articles))
4290
4291 ;; Set the initial limit.
4292 (setq gnus-newsgroup-limit (copy-sequence articles))
4293 ;; Remove canceled articles from the list of unread articles.
4294 (setq gnus-newsgroup-unreads
4295 (gnus-set-sorted-intersection
4296 gnus-newsgroup-unreads
4297 (setq fetched-articles
4298 (mapcar (lambda (headers) (mail-header-number headers))
4299 gnus-newsgroup-headers))))
4300 ;; Removed marked articles that do not exist.
4301 (gnus-update-missing-marks
4302 (gnus-sorted-complement fetched-articles articles))
4303 ;; We might want to build some more threads first.
6748645f
LMI		 4304 (when (and gnus-fetch-old-headers
4305 (eq gnus-headers-retrieved-by 'nov))
4306 (if (eq gnus-fetch-old-headers 'invisible)
4307 (gnus-build-all-threads)
4308 (gnus-build-old-threads)))
4309 ;; Let the Gnus agent mark articles as read.
4310 (when gnus-agent
4311 (gnus-agent-get-undownloaded-list))
16409b0b
GM		 4312 ;; Remove list identifiers from subject
4313 (when gnus-list-identifiers
4314 (gnus-summary-remove-list-identifiers))
eec82323
LMI		 4315 ;; Check whether auto-expire is to be done in this group.
4316 (setq gnus-newsgroup-auto-expire
4317 (gnus-group-auto-expirable-p group))
4318 ;; Set up the article buffer now, if necessary.
4319 (unless gnus-single-article-buffer
4320 (gnus-article-setup-buffer))
4321 ;; First and last article in this newsgroup.
4322 (when gnus-newsgroup-headers
4323 (setq gnus-newsgroup-begin
4324 (mail-header-number (car gnus-newsgroup-headers))
4325 gnus-newsgroup-end
4326 (mail-header-number
4327 (gnus-last-element gnus-newsgroup-headers))))
4328 ;; GROUP is successfully selected.
4329 (or gnus-newsgroup-headers t)))))
4330
4331(defun gnus-articles-to-read (group &optional read-all)
16409b0b 4332 "Find out what articles the user wants to read."
eec82323
LMI		 4333 (let* ((articles
4334 ;; Select all articles if `read-all' is non-nil, or if there
4335 ;; are no unread articles.
4336 (if (or read-all
4337 (and (zerop (length gnus-newsgroup-marked))
4338 (zerop (length gnus-newsgroup-unreads)))
4339 (eq (gnus-group-find-parameter group 'display)
4340 'all))
16409b0b
GM		 4341 (or
4342 (gnus-uncompress-range (gnus-active group))
4343 (gnus-cache-articles-in-group group))
eec82323
LMI		 4344 (sort (append gnus-newsgroup-dormant gnus-newsgroup-marked
4345 (copy-sequence gnus-newsgroup-unreads))
4346 '<)))
4347 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
4348 (scored (length scored-list))
4349 (number (length articles))
4350 (marked (+ (length gnus-newsgroup-marked)
4351 (length gnus-newsgroup-dormant)))
4352 (select
4353 (cond
4354 ((numberp read-all)
4355 read-all)
4356 (t
4357 (condition-case ()
4358 (cond
4359 ((and (or (<= scored marked) (= scored number))
4360 (numberp gnus-large-newsgroup)
4361 (> number gnus-large-newsgroup))
4362 (let ((input
4363 (read-string
4364 (format
4365 "How many articles from %s (default %d): "
4366 (gnus-limit-string gnus-newsgroup-name 35)
4367 number))))
4368 (if (string-match "^[ \t]*$" input) number input)))
4369 ((and (> scored marked) (< scored number)
4370 (> (- scored number) 20))
4371 (let ((input
4372 (read-string
4373 (format "%s %s (%d scored, %d total): "
4374 "How many articles from"
4375 group scored number))))
4376 (if (string-match "^[ \t]*$" input)
4377 number input)))
4378 (t number))
d4dfaa19
DL		 4379 (quit
4380 (message "Quit getting the articles to read")
4381 nil))))))
eec82323
LMI		 4382 (setq select (if (stringp select) (string-to-number select) select))
4383 (if (or (null select) (zerop select))
4384 select
4385 (if (and (not (zerop scored)) (<= (abs select) scored))
4386 (progn
4387 (setq articles (sort scored-list '<))
4388 (setq number (length articles)))
4389 (setq articles (copy-sequence articles)))
4390
4391 (when (< (abs select) number)
4392 (if (< select 0)
4393 ;; Select the N oldest articles.
4394 (setcdr (nthcdr (1- (abs select)) articles) nil)
4395 ;; Select the N most recent articles.
4396 (setq articles (nthcdr (- number select) articles))))
4397 (setq gnus-newsgroup-unselected
4398 (gnus-sorted-intersection
4399 gnus-newsgroup-unreads
4400 (gnus-sorted-complement gnus-newsgroup-unreads articles)))
16409b0b
GM		 4401 (when gnus-alter-articles-to-read-function
4402 (setq gnus-newsgroup-unreads
4403 (sort
4404 (funcall gnus-alter-articles-to-read-function
4405 gnus-newsgroup-name gnus-newsgroup-unreads)
4406 '<)))
eec82323
LMI		 4407 articles)))
4408
4409(defun gnus-killed-articles (killed articles)
4410 (let (out)
4411 (while articles
4412 (when (inline (gnus-member-of-range (car articles) killed))
4413 (push (car articles) out))
4414 (setq articles (cdr articles)))
4415 out))
4416
4417(defun gnus-uncompress-marks (marks)
4418 "Uncompress the mark ranges in MARKS."
4419 (let ((uncompressed '(score bookmark))
4420 out)
4421 (while marks
4422 (if (memq (caar marks) uncompressed)
4423 (push (car marks) out)
4424 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
4425 (setq marks (cdr marks)))
4426 out))
4427
4428(defun gnus-adjust-marked-articles (info)
16409b0b 4429 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI		 4430 (let* ((marked-lists (gnus-info-marks info))
4431 (active (gnus-active (gnus-info-group info)))
4432 (min (car active))
4433 (max (cdr active))
4434 (types gnus-article-mark-lists)
4435 (uncompressed '(score bookmark killed))
4436 marks var articles article mark)
4437
4438 (while marked-lists
4439 (setq marks (pop marked-lists))
4440 (set (setq var (intern (format "gnus-newsgroup-%s"
4441 (car (rassq (setq mark (car marks))
4442 types)))))
4443 (if (memq (car marks) uncompressed) (cdr marks)
4444 (gnus-uncompress-range (cdr marks))))
4445
4446 (setq articles (symbol-value var))
4447
4448 ;; All articles have to be subsets of the active articles.
4449 (cond
4450 ;; Adjust "simple" lists.
4451 ((memq mark '(tick dormant expire reply save))
4452 (while articles
4453 (when (or (< (setq article (pop articles)) min) (> article max))
4454 (set var (delq article (symbol-value var))))))
4455 ;; Adjust assocs.
4456 ((memq mark uncompressed)
a8151ef7
LMI		 4457 (when (not (listp (cdr (symbol-value var))))
4458 (set var (list (symbol-value var))))
4459 (when (not (listp (cdr articles)))
4460 (setq articles (list articles)))
eec82323
LMI		 4461 (while articles
4462 (when (or (not (consp (setq article (pop articles))))
4463 (< (car article) min)
4464 (> (car article) max))
4465 (set var (delq article (symbol-value var))))))))))
4466
4467(defun gnus-update-missing-marks (missing)
6748645f 4468 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323
LMI		 4469 (when missing
4470 (let ((types gnus-article-mark-lists)
4471 var m)
4472 ;; Go through all types.
4473 (while types
4474 (setq var (intern (format "gnus-newsgroup-%s" (car (pop types)))))
4475 (when (symbol-value var)
4476 ;; This list has articles. So we delete all missing articles
4477 ;; from it.
4478 (setq m missing)
4479 (while m
4480 (set var (delq (pop m) (symbol-value var)))))))))
4481
4482(defun gnus-update-marks ()
4483 "Enter the various lists of marked articles into the newsgroup info list."
4484 (let ((types gnus-article-mark-lists)
4485 (info (gnus-get-info gnus-newsgroup-name))
4486 (uncompressed '(score bookmark killed))
16409b0b 4487 type list newmarked symbol delta-marks)
eec82323 4488 (when info
16409b0b 4489 ;; Add all marks lists to the list of marks lists.
eec82323 4490 (while (setq type (pop types))
16409b0b
GM		 4491 (setq list (symbol-value
4492 (setq symbol
4493 (intern (format "gnus-newsgroup-%s"
4494 (car type))))))
eec82323 4495
16409b0b 4496 (when list
eec82323
LMI		 4497 ;; Get rid of the entries of the articles that have the
4498 ;; default score.
4499 (when (and (eq (cdr type) 'score)
4500 gnus-save-score
4501 list)
4502 (let* ((arts list)
4503 (prev (cons nil list))
4504 (all prev))
4505 (while arts
4506 (if (or (not (consp (car arts)))
4507 (= (cdar arts) gnus-summary-default-score))
4508 (setcdr prev (cdr arts))
4509 (setq prev arts))
4510 (setq arts (cdr arts)))
16409b0b
GM		 4511 (setq list (cdr all)))))
4512
4513 (unless (memq (cdr type) uncompressed)
4514 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
4515
4516 (when (gnus-check-backend-function
4517 'request-set-mark gnus-newsgroup-name)
4518 ;; propagate flags to server, with the following exceptions:
4519 ;; uncompressed:s are not proper flags (they are cons cells)
4520 ;; cache is a internal gnus flag
4521 ;; download are local to one gnus installation (well)
4522 ;; unsend are for nndraft groups only
4523 ;; xxx: generality of this? this suits nnimap anyway
4524 (unless (memq (cdr type) (append '(cache download unsend)
4525 uncompressed))
4526 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
4527 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
4528 (add (gnus-remove-from-range
4529 (gnus-copy-sequence list) old)))
4530 (when add
4531 (push (list add 'add (list (cdr type))) delta-marks))
4532 (when del
4533 (push (list del 'del (list (cdr type))) delta-marks)))))
4534
4535 (when list
4536 (push (cons (cdr type) list) newmarked)))
4537
4538 (when delta-marks
4539 (unless (gnus-check-group gnus-newsgroup-name)
4540 (error "Can't open server for %s" gnus-newsgroup-name))
4541 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
4542
eec82323
LMI		 4543 ;; Enter these new marks into the info of the group.
4544 (if (nthcdr 3 info)
4545 (setcar (nthcdr 3 info) newmarked)
4546 ;; Add the marks lists to the end of the info.
4547 (when newmarked
4548 (setcdr (nthcdr 2 info) (list newmarked))))
4549
4550 ;; Cut off the end of the info if there's nothing else there.
4551 (let ((i 5))
4552 (while (and (> i 2)
4553 (not (nth i info)))
4554 (when (nthcdr (decf i) info)
4555 (setcdr (nthcdr i info) nil)))))))
4556
4557(defun gnus-set-mode-line (where)
16409b0b 4558 "Set the mode line of the article or summary buffers.
eec82323
LMI		 4559If WHERE is `summary', the summary mode line format will be used."
4560 ;; Is this mode line one we keep updated?
16409b0b
GM		 4561 (when (and (memq where gnus-updated-mode-lines)
4562 (symbol-value
4563 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323
LMI		 4564 (let (mode-string)
4565 (save-excursion
4566 ;; We evaluate this in the summary buffer since these
4567 ;; variables are buffer-local to that buffer.
4568 (set-buffer gnus-summary-buffer)
4569 ;; We bind all these variables that are used in the `eval' form
4570 ;; below.
4571 (let* ((mformat (symbol-value
4572 (intern
4573 (format "gnus-%s-mode-line-format-spec" where))))
16409b0b
GM		 4574 (gnus-tmp-group-name (gnus-group-name-decode
4575 gnus-newsgroup-name
4576 (gnus-group-name-charset
4577 nil
4578 gnus-newsgroup-name)))
eec82323
LMI		 4579 (gnus-tmp-article-number (or gnus-current-article 0))
4580 (gnus-tmp-unread gnus-newsgroup-unreads)
4581 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
4582 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
4583 (gnus-tmp-unread-and-unselected
4584 (cond ((and (zerop gnus-tmp-unread-and-unticked)
4585 (zerop gnus-tmp-unselected))
4586 "")
4587 ((zerop gnus-tmp-unselected)
4588 (format "{%d more}" gnus-tmp-unread-and-unticked))
4589 (t (format "{%d(+%d) more}"
4590 gnus-tmp-unread-and-unticked
4591 gnus-tmp-unselected))))
4592 (gnus-tmp-subject
4593 (if (and gnus-current-headers
4594 (vectorp gnus-current-headers))
4595 (gnus-mode-string-quote
4596 (mail-header-subject gnus-current-headers))
4597 ""))
4598 bufname-length max-len
4599 gnus-tmp-header);; passed as argument to any user-format-funcs
4600 (setq mode-string (eval mformat))
4601 (setq bufname-length (if (string-match "%b" mode-string)
4602 (- (length
4603 (buffer-name
4604 (if (eq where 'summary)
4605 nil
4606 (get-buffer gnus-article-buffer))))
4607 2)
4608 0))
4609 (setq max-len (max 4 (if gnus-mode-non-string-length
4610 (- (window-width)
4611 gnus-mode-non-string-length
4612 bufname-length)
4613 (length mode-string))))
4614 ;; We might have to chop a bit of the string off...
4615 (when (> (length mode-string) max-len)
4616 (setq mode-string
16409b0b 4617 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI		 4618 "...")))
4619 ;; Pad the mode string a bit.
4620 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
4621 ;; Update the mode line.
4622 (setq mode-line-buffer-identification
4623 (gnus-mode-line-buffer-identification (list mode-string)))
4624 (set-buffer-modified-p t))))
4625
4626(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
4627 "Go through the HEADERS list and add all Xrefs to a hash table.
4628The resulting hash table is returned, or nil if no Xrefs were found."
4629 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
4630 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
4631 (xref-hashtb (gnus-make-hashtable))
4632 start group entry number xrefs header)
4633 (while headers
4634 (setq header (pop headers))
4635 (when (and (setq xrefs (mail-header-xref header))
4636 (not (memq (setq number (mail-header-number header))
4637 unreads)))
4638 (setq start 0)
4639 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
4640 (setq start (match-end 0))
4641 (setq group (if prefix
4642 (concat prefix (substring xrefs (match-beginning 1)
4643 (match-end 1)))
4644 (substring xrefs (match-beginning 1) (match-end 1))))
4645 (setq number
4646 (string-to-int (substring xrefs (match-beginning 2)
4647 (match-end 2))))
4648 (if (setq entry (gnus-gethash group xref-hashtb))
4649 (setcdr entry (cons number (cdr entry)))
4650 (gnus-sethash group (cons number nil) xref-hashtb)))))
4651 (and start xref-hashtb)))
4652
4653(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
4654 "Look through all the headers and mark the Xrefs as read."
4655 (let ((virtual (gnus-virtual-group-p from-newsgroup))
4656 name entry info xref-hashtb idlist method nth4)
4657 (save-excursion
4658 (set-buffer gnus-group-buffer)
4659 (when (setq xref-hashtb
4660 (gnus-create-xref-hashtb from-newsgroup headers unreads))
4661 (mapatoms
4662 (lambda (group)
4663 (unless (string= from-newsgroup (setq name (symbol-name group)))
4664 (setq idlist (symbol-value group))
4665 ;; Dead groups are not updated.
4666 (and (prog1
4667 (setq entry (gnus-gethash name gnus-newsrc-hashtb)
4668 info (nth 2 entry))
4669 (when (stringp (setq nth4 (gnus-info-method info)))
4670 (setq nth4 (gnus-server-to-method nth4))))
4671 ;; Only do the xrefs if the group has the same
4672 ;; select method as the group we have just read.
4673 (or (gnus-methods-equal-p
4674 nth4 (gnus-find-method-for-group from-newsgroup))
4675 virtual
4676 (equal nth4 (setq method (gnus-find-method-for-group
4677 from-newsgroup)))
4678 (and (equal (car nth4) (car method))
4679 (equal (nth 1 nth4) (nth 1 method))))
4680 gnus-use-cross-reference
4681 (or (not (eq gnus-use-cross-reference t))
4682 virtual
4683 ;; Only do cross-references on subscribed
4684 ;; groups, if that is what is wanted.
4685 (<= (gnus-info-level info) gnus-level-subscribed))
4686 (gnus-group-make-articles-read name idlist))))
4687 xref-hashtb)))))
4688
6748645f
LMI		 4689(defun gnus-compute-read-articles (group articles)
4690 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
4691 (info (nth 2 entry))
4692 (active (gnus-active group))
4693 ninfo)
4694 (when entry
16409b0b 4695 ;; First peel off all invalid article numbers.
6748645f
LMI		 4696 (when active
4697 (let ((ids articles)
4698 id first)
4699 (while (setq id (pop ids))
4700 (when (and first (> id (cdr active)))
4701 ;; We'll end up in this situation in one particular
4702 ;; obscure situation. If you re-scan a group and get
4703 ;; a new article that is cross-posted to a different
4704 ;; group that has not been re-scanned, you might get
4705 ;; crossposted article that has a higher number than
4706 ;; Gnus believes possible. So we re-activate this
4707 ;; group as well. This might mean doing the
4708 ;; crossposting thingy will *increase* the number
4709 ;; of articles in some groups. Tsk, tsk.
4710 (setq active (or (gnus-activate-group group) active)))
4711 (when (or (> id (cdr active))
4712 (< id (car active)))
4713 (setq articles (delq id articles))))))
4714 ;; If the read list is nil, we init it.
4715 (if (and active
4716 (null (gnus-info-read info))
4717 (> (car active) 1))
4718 (setq ninfo (cons 1 (1- (car active))))
4719 (setq ninfo (gnus-info-read info)))
4720 ;; Then we add the read articles to the range.
4721 (gnus-add-to-range
4722 ninfo (setq articles (sort articles '<))))))
4723
eec82323
LMI		 4724(defun gnus-group-make-articles-read (group articles)
4725 "Update the info of GROUP to say that ARTICLES are read."
4726 (let* ((num 0)
4727 (entry (gnus-gethash group gnus-newsrc-hashtb))
4728 (info (nth 2 entry))
4729 (active (gnus-active group))
4730 range)
6748645f
LMI		 4731 (when entry
4732 (setq range (gnus-compute-read-articles group articles))
4733 (save-excursion
4734 (set-buffer gnus-group-buffer)
4735 (gnus-undo-register
4736 `(progn
4737 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
4738 (gnus-info-set-read ',info ',(gnus-info-read info))
4739 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
4740 (gnus-group-update-group ,group t))))
4741 ;; Add the read articles to the range.
4742 (gnus-info-set-read info range)
4743 ;; Then we have to re-compute how many unread
4744 ;; articles there are in this group.
4745 (when active
4746 (cond
4747 ((not range)
4748 (setq num (- (1+ (cdr active)) (car active))))
4749 ((not (listp (cdr range)))
4750 (setq num (- (cdr active) (- (1+ (cdr range))
4751 (car range)))))
4752 (t
4753 (while range
4754 (if (numberp (car range))
4755 (setq num (1+ num))
4756 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
4757 (setq range (cdr range)))
4758 (setq num (- (cdr active) num))))
4759 ;; Update the number of unread articles.
4760 (setcar entry num)
4761 ;; Update the group buffer.
4762 (gnus-group-update-group group t)))))
eec82323 4763
eec82323
LMI		 4764(defvar gnus-newsgroup-none-id 0)
4765
4766(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
4767 (let ((cur nntp-server-buffer)
4768 (dependencies
4769 (or dependencies
4770 (save-excursion (set-buffer gnus-summary-buffer)
4771 gnus-newsgroup-dependencies)))
16409b0b
GM		 4772 headers id end ref
4773 (mail-parse-charset gnus-newsgroup-charset)
4774 (mail-parse-ignored-charsets
4775 (save-excursion (condition-case nil
4776 (set-buffer gnus-summary-buffer)
4777 (error))
4778 gnus-newsgroup-ignored-charsets)))
eec82323
LMI		 4779 (save-excursion
4780 (set-buffer nntp-server-buffer)
4781 ;; Translate all TAB characters into SPACE characters.
4782 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 4783 (subst-char-in-region (point-min) (point-max) ?\r ? t)
6748645f 4784 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 4785 (let ((case-fold-search t)
6748645f 4786 in-reply-to header p lines chars)
eec82323
LMI		 4787 (goto-char (point-min))
4788 ;; Search to the beginning of the next header. Error messages
4789 ;; do not begin with 2 or 3.
4790 (while (re-search-forward "^[23][0-9]+ " nil t)
4791 (setq id nil
4792 ref nil)
4793 ;; This implementation of this function, with nine
4794 ;; search-forwards instead of the one re-search-forward and
4795 ;; a case (which basically was the old function) is actually
4796 ;; about twice as fast, even though it looks messier. You
4797 ;; can't have everything, I guess. Speed and elegance
4798 ;; doesn't always go hand in hand.
4799 (setq
4800 header
4801 (vector
4802 ;; Number.
4803 (prog1
4804 (read cur)
4805 (end-of-line)
4806 (setq p (point))
4807 (narrow-to-region (point)
4808 (or (and (search-forward "\n.\n" nil t)
4809 (- (point) 2))
4810 (point))))
4811 ;; Subject.
4812 (progn
4813 (goto-char p)
4814 (if (search-forward "\nsubject: " nil t)
16409b0b
GM		 4815 (funcall gnus-decode-encoded-word-function
4816 (nnheader-header-value))
2bd3dcae 4817 "(none)"))
eec82323
LMI		 4818 ;; From.
4819 (progn
4820 (goto-char p)
d4dfaa19
DL		 4821 (if (or (search-forward "\nfrom: " nil t)
4822 (search-forward "\nfrom:" nil t))
16409b0b
GM		 4823 (funcall gnus-decode-encoded-word-function
4824 (nnheader-header-value))
2bd3dcae 4825 "(nobody)"))
eec82323
LMI		 4826 ;; Date.
4827 (progn
4828 (goto-char p)
4829 (if (search-forward "\ndate: " nil t)
4830 (nnheader-header-value) ""))
4831 ;; Message-ID.
4832 (progn
4833 (goto-char p)
6748645f
LMI		 4834 (setq id (if (re-search-forward
4835 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
4836 ;; We do it this way to make sure the Message-ID
4837 ;; is (somewhat) syntactically valid.
4838 (buffer-substring (match-beginning 1)
4839 (match-end 1))
eec82323
LMI		 4840 ;; If there was no message-id, we just fake one
4841 ;; to make subsequent routines simpler.
4842 (nnheader-generate-fake-message-id))))
4843 ;; References.
4844 (progn
4845 (goto-char p)
4846 (if (search-forward "\nreferences: " nil t)
4847 (progn
4848 (setq end (point))
4849 (prog1
4850 (nnheader-header-value)
4851 (setq ref
4852 (buffer-substring
4853 (progn
4854 (end-of-line)
4855 (search-backward ">" end t)
4856 (1+ (point)))
4857 (progn
4858 (search-backward "<" end t)
4859 (point))))))
4860 ;; Get the references from the in-reply-to header if there
4861 ;; were no references and the in-reply-to header looks
4862 ;; promising.
4863 (if (and (search-forward "\nin-reply-to: " nil t)
4864 (setq in-reply-to (nnheader-header-value))
4865 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI		 4866 (let (ref2)
4867 (setq ref (substring in-reply-to (match-beginning 0)
4868 (match-end 0)))
4869 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
4870 (setq ref2 (substring in-reply-to (match-beginning 0)
4871 (match-end 0)))
4872 (when (> (length ref2) (length ref))
4873 (setq ref ref2)))
4874 ref)
eec82323
LMI		 4875 (setq ref nil))))
4876 ;; Chars.
6748645f
LMI		 4877 (progn
4878 (goto-char p)
4879 (if (search-forward "\nchars: " nil t)
4880 (if (numberp (setq chars (ignore-errors (read cur))))
4881 chars 0)
4882 0))
eec82323
LMI		 4883 ;; Lines.
4884 (progn
4885 (goto-char p)
4886 (if (search-forward "\nlines: " nil t)
a8151ef7 4887 (if (numberp (setq lines (ignore-errors (read cur))))
eec82323
LMI		 4888 lines 0)
4889 0))
4890 ;; Xref.
4891 (progn
4892 (goto-char p)
4893 (and (search-forward "\nxref: " nil t)
16409b0b
GM		 4894 (nnheader-header-value)))
4895 ;; Extra.
4896 (when gnus-extra-headers
4897 (let ((extra gnus-extra-headers)
4898 out)
4899 (while extra
4900 (goto-char p)
4901 (when (search-forward
4902 (concat "\n" (symbol-name (car extra)) ": ") nil t)
4903 (push (cons (car extra) (nnheader-header-value))
4904 out))
4905 (pop extra))
4906 out))))
eec82323
LMI		 4907 (when (equal id ref)
4908 (setq ref nil))
6748645f
LMI		 4909
4910 (when gnus-alter-header-function
4911 (funcall gnus-alter-header-function header)
4912 (setq id (mail-header-id header)
4913 ref (gnus-parent-id (mail-header-references header))))
4914
4915 (when (setq header
4916 (gnus-dependencies-add-header
4917 header dependencies force-new))
eec82323
LMI		 4918 (push header headers))
4919 (goto-char (point-max))
4920 (widen))
4921 (nreverse headers)))))
4922
eec82323
LMI		 4923;; Goes through the xover lines and returns a list of vectors
4924(defun gnus-get-newsgroup-headers-xover (sequence &optional
4925 force-new dependencies
4926 group also-fetch-heads)
16409b0b
GM		 4927 "Parse the news overview data in the server buffer.
4928Return a list of headers that match SEQUENCE (see
4929`nntp-retrieve-headers')."
eec82323
LMI		 4930 ;; Get the Xref when the users reads the articles since most/some
4931 ;; NNTP servers do not include Xrefs when using XOVER.
4932 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM		 4933 (let ((mail-parse-charset gnus-newsgroup-charset)
4934 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
4935 (cur nntp-server-buffer)
eec82323
LMI		 4936 (dependencies (or dependencies gnus-newsgroup-dependencies))
4937 number headers header)
4938 (save-excursion
4939 (set-buffer nntp-server-buffer)
16409b0b 4940 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 4941 ;; Allow the user to mangle the headers before parsing them.
6748645f 4942 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323
LMI		 4943 (goto-char (point-min))
4944 (while (not (eobp))
4945 (condition-case ()
4946 (while (and sequence (not (eobp)))
4947 (setq number (read cur))
4948 (while (and sequence
4949 (< (car sequence) number))
4950 (setq sequence (cdr sequence)))
4951 (and sequence
4952 (eq number (car sequence))
4953 (progn
4954 (setq sequence (cdr sequence))
4955 (setq header (inline
4956 (gnus-nov-parse-line
4957 number dependencies force-new))))
4958 (push header headers))
4959 (forward-line 1))
4960 (error
4961 (gnus-error 4 "Strange nov line (%d)"
4962 (count-lines (point-min) (point)))))
4963 (forward-line 1))
4964 ;; A common bug in inn is that if you have posted an article and
4965 ;; then retrieves the active file, it will answer correctly --
4966 ;; the new article is included. However, a NOV entry for the
4967 ;; article may not have been generated yet, so this may fail.
4968 ;; We work around this problem by retrieving the last few
4969 ;; headers using HEAD.
4970 (if (or (not also-fetch-heads)
4971 (not sequence))
4972 ;; We (probably) got all the headers.
4973 (nreverse headers)
4974 (let ((gnus-nov-is-evil t))
4975 (nconc
4976 (nreverse headers)
4977 (when (gnus-retrieve-headers sequence group)
4978 (gnus-get-newsgroup-headers))))))))
4979
4980(defun gnus-article-get-xrefs ()
4981 "Fill in the Xref value in `gnus-current-headers', if necessary.
4982This is meant to be called in `gnus-article-internal-prepare-hook'."
4983 (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
4984 gnus-current-headers)))
4985 (or (not gnus-use-cross-reference)
4986 (not headers)
4987 (and (mail-header-xref headers)
4988 (not (string= (mail-header-xref headers) "")))
4989 (let ((case-fold-search t)
4990 xref)
4991 (save-restriction
4992 (nnheader-narrow-to-headers)
4993 (goto-char (point-min))
16409b0b
GM		 4994 (when (or (and (not (eobp))
4995 (eq (downcase (char-after)) ?x)
eec82323
LMI		 4996 (looking-at "Xref:"))
4997 (search-forward "\nXref:" nil t))
4998 (goto-char (1+ (match-end 0)))
4999 (setq xref (buffer-substring (point)
5000 (progn (end-of-line) (point))))
5001 (mail-header-set-xref headers xref)))))))
5002
5003(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI		 5004 "Find article ID and insert the summary line for that article.
5005OLD-HEADER can either be a header or a line number to insert
5006the subject line on."
5007 (let* ((line (and (numberp old-header) old-header))
5008 (old-header (and (vectorp old-header) old-header))
5009 (header (cond ((and old-header use-old-header)
16409b0b
GM		 5010 old-header)
5011 ((and (numberp id)
5012 (gnus-number-to-header id))
5013 (gnus-number-to-header id))
5014 (t
5015 (gnus-read-header id))))
5016 (number (and (numberp id) id))
5017 d)
eec82323
LMI		 5018 (when header
5019 ;; Rebuild the thread that this article is part of and go to the
5020 ;; article we have fetched.
5021 (when (and (not gnus-show-threads)
5022 old-header)
6748645f
LMI		 5023 (when (and number
5024 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI		 5025 (goto-char (gnus-data-pos d))
5026 (gnus-data-remove
5027 number
5028 (- (gnus-point-at-bol)
5029 (prog1
5030 (1+ (gnus-point-at-eol))
5031 (gnus-delete-line))))))
5032 (when old-header
5033 (mail-header-set-number header (mail-header-number old-header)))
5034 (setq gnus-newsgroup-sparse
5035 (delq (setq number (mail-header-number header))
5036 gnus-newsgroup-sparse))
5037 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI		 5038 (push number gnus-newsgroup-limit)
5039 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI		 5040 (gnus-summary-goto-subject number nil t))
5041 (when (and (numberp number)
5042 (> number 0))
5043 ;; We have to update the boundaries even if we can't fetch the
5044 ;; article if ID is a number -- so that the next `P' or `N'
5045 ;; command will fetch the previous (or next) article even
5046 ;; if the one we tried to fetch this time has been canceled.
5047 (when (> number gnus-newsgroup-end)
5048 (setq gnus-newsgroup-end number))
5049 (when (< number gnus-newsgroup-begin)
5050 (setq gnus-newsgroup-begin number))
5051 (setq gnus-newsgroup-unselected
5052 (delq number gnus-newsgroup-unselected)))
5053 ;; Report back a success?
5054 (and header (mail-header-number header))))
5055
5056;;; Process/prefix in the summary buffer
5057
5058(defun gnus-summary-work-articles (n)
6748645f
LMI		 5059 "Return a list of articles to be worked upon.
5060The prefix argument, the list of process marked articles, and the
5061current article will be taken into consideration."
5062 (save-excursion
5063 (set-buffer gnus-summary-buffer)
5064 (cond
5065 (n
5066 ;; A numerical prefix has been given.
5067 (setq n (prefix-numeric-value n))
5068 (let ((backward (< n 0))
5069 (n (abs (prefix-numeric-value n)))
5070 articles article)
5071 (save-excursion
5072 (while
5073 (and (> n 0)
5074 (push (setq article (gnus-summary-article-number))
5075 articles)
5076 (if backward
5077 (gnus-summary-find-prev nil article)
5078 (gnus-summary-find-next nil article)))
5079 (decf n)))
5080 (nreverse articles)))
5081 ((and (gnus-region-active-p) (mark))
5082 (message "region active")
5083 ;; Work on the region between point and mark.
5084 (let ((max (max (point) (mark)))
5085 articles article)
5086 (save-excursion
5087 (goto-char (min (min (point) (mark))))
5088 (while
5089 (and
5090 (push (setq article (gnus-summary-article-number)) articles)
5091 (gnus-summary-find-next nil article)
5092 (< (point) max)))
5093 (nreverse articles))))
5094 (gnus-newsgroup-processable
5095 ;; There are process-marked articles present.
5096 ;; Save current state.
5097 (gnus-summary-save-process-mark)
5098 ;; Return the list.
5099 (reverse gnus-newsgroup-processable))
5100 (t
5101 ;; Just return the current article.
5102 (list (gnus-summary-article-number))))))
5103
5104(defmacro gnus-summary-iterate (arg &rest forms)
5105 "Iterate over the process/prefixed articles and do FORMS.
5106ARG is the interactive prefix given to the command. FORMS will be
5107executed with point over the summary line of the articles."
5108 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
5109 `(let ((,articles (gnus-summary-work-articles ,arg)))
5110 (while ,articles
5111 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM		 5112 ,@forms
5113 (pop ,articles)))))
6748645f
LMI		 5114
5115(put 'gnus-summary-iterate 'lisp-indent-function 1)
5116(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI		 5117
5118(defun gnus-summary-save-process-mark ()
5119 "Push the current set of process marked articles on the stack."
5120 (interactive)
5121 (push (copy-sequence gnus-newsgroup-processable)
5122 gnus-newsgroup-process-stack))
5123
5124(defun gnus-summary-kill-process-mark ()
5125 "Push the current set of process marked articles on the stack and unmark."
5126 (interactive)
5127 (gnus-summary-save-process-mark)
5128 (gnus-summary-unmark-all-processable))
5129
5130(defun gnus-summary-yank-process-mark ()
5131 "Pop the last process mark state off the stack and restore it."
5132 (interactive)
5133 (unless gnus-newsgroup-process-stack
5134 (error "Empty mark stack"))
5135 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
5136
5137(defun gnus-summary-process-mark-set (set)
5138 "Make SET into the current process marked articles."
5139 (gnus-summary-unmark-all-processable)
5140 (while set
5141 (gnus-summary-set-process-mark (pop set))))
5142
5143;;; Searching and stuff
5144
5145(defun gnus-summary-search-group (&optional backward use-level)
5146 "Search for next unread newsgroup.
5147If optional argument BACKWARD is non-nil, search backward instead."
5148 (save-excursion
5149 (set-buffer gnus-group-buffer)
5150 (when (gnus-group-search-forward
5151 backward nil (if use-level (gnus-group-group-level) nil))
5152 (gnus-group-group-name))))
5153
5154(defun gnus-summary-best-group (&optional exclude-group)
5155 "Find the name of the best unread group.
5156If EXCLUDE-GROUP, do not go to this group."
5157 (save-excursion
5158 (set-buffer gnus-group-buffer)
5159 (save-excursion
5160 (gnus-group-best-unread-group exclude-group))))
5161
6748645f 5162(defun gnus-summary-find-next (&optional unread article backward undownloaded)
eec82323
LMI		 5163 (if backward (gnus-summary-find-prev)
5164 (let* ((dummy (gnus-summary-article-intangible-p))
5165 (article (or article (gnus-summary-article-number)))
5166 (arts (gnus-data-find-list article))
5167 result)
5168 (when (and (not dummy)
5169 (or (not gnus-summary-check-current)
5170 (not unread)
5171 (not (gnus-data-unread-p (car arts)))))
5172 (setq arts (cdr arts)))
5173 (when (setq result
5174 (if unread
5175 (progn
5176 (while arts
6748645f
LMI		 5177 (when (or (and undownloaded
5178 (eq gnus-undownloaded-mark
5179 (gnus-data-mark (car arts))))
5180 (gnus-data-unread-p (car arts)))
eec82323
LMI		 5181 (setq result (car arts)
5182 arts nil))
5183 (setq arts (cdr arts)))
5184 result)
5185 (car arts)))
5186 (goto-char (gnus-data-pos result))
5187 (gnus-data-number result)))))
5188
5189(defun gnus-summary-find-prev (&optional unread article)
5190 (let* ((eobp (eobp))
5191 (article (or article (gnus-summary-article-number)))
5192 (arts (gnus-data-find-list article (gnus-data-list 'rev)))
5193 result)
5194 (when (and (not eobp)
5195 (or (not gnus-summary-check-current)
5196 (not unread)
5197 (not (gnus-data-unread-p (car arts)))))
5198 (setq arts (cdr arts)))
5199 (when (setq result
5200 (if unread
5201 (progn
5202 (while arts
5203 (when (gnus-data-unread-p (car arts))
5204 (setq result (car arts)
5205 arts nil))
5206 (setq arts (cdr arts)))
5207 result)
5208 (car arts)))
5209 (goto-char (gnus-data-pos result))
5210 (gnus-data-number result))))
5211
5212(defun gnus-summary-find-subject (subject &optional unread backward article)
5213 (let* ((simp-subject (gnus-simplify-subject-fully subject))
5214 (article (or article (gnus-summary-article-number)))
5215 (articles (gnus-data-list backward))
5216 (arts (gnus-data-find-list article articles))
5217 result)
5218 (when (or (not gnus-summary-check-current)
5219 (not unread)
5220 (not (gnus-data-unread-p (car arts))))
5221 (setq arts (cdr arts)))
5222 (while arts
5223 (and (or (not unread)
5224 (gnus-data-unread-p (car arts)))
5225 (vectorp (gnus-data-header (car arts)))
5226 (gnus-subject-equal
5227 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
5228 (setq result (car arts)
5229 arts nil))
5230 (setq arts (cdr arts)))
5231 (and result
5232 (goto-char (gnus-data-pos result))
5233 (gnus-data-number result))))
5234
5235(defun gnus-summary-search-forward (&optional unread subject backward)
5236 "Search forward for an article.
5237If UNREAD, look for unread articles. If SUBJECT, look for
5238articles with that subject. If BACKWARD, search backward instead."
5239 (cond (subject (gnus-summary-find-subject subject unread backward))
5240 (backward (gnus-summary-find-prev unread))
5241 (t (gnus-summary-find-next unread))))
5242
5243(defun gnus-recenter (&optional n)
5244 "Center point in window and redisplay frame.
5245Also do horizontal recentering."
5246 (interactive "P")
5247 (when (and gnus-auto-center-summary
5248 (not (eq gnus-auto-center-summary 'vertical)))
5249 (gnus-horizontal-recenter))
5250 (recenter n))
5251
5252(defun gnus-summary-recenter ()
5253 "Center point in the summary window.
5254If `gnus-auto-center-summary' is nil, or the article buffer isn't
5255displayed, no centering will be performed."
5256 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
5257 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 5258 (interactive)
eec82323
LMI		 5259 (let* ((top (cond ((< (window-height) 4) 0)
5260 ((< (window-height) 7) 1)
16409b0b
GM		 5261 (t (if (numberp gnus-auto-center-summary)
5262 gnus-auto-center-summary
5263 2))))
eec82323
LMI		 5264 (height (1- (window-height)))
5265 (bottom (save-excursion (goto-char (point-max))
5266 (forward-line (- height))
5267 (point)))
5268 (window (get-buffer-window (current-buffer))))
5269 ;; The user has to want it.
5270 (when gnus-auto-center-summary
5271 (when (get-buffer-window gnus-article-buffer)
5272 ;; Only do recentering when the article buffer is displayed,
5273 ;; Set the window start to either `bottom', which is the biggest
5274 ;; possible valid number, or the second line from the top,
5275 ;; whichever is the least.
db7ebd73
MB		 5276 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
5277 (if (> bottom top-pos)
5278 ;; Keep the second line from the top visible
5279 (set-window-start window top-pos t)
5280 ;; Try to keep the bottom line visible; if it's partially
5281 ;; obscured, either scroll one more line to make it fully
5282 ;; visible, or revert to using TOP-POS.
5283 (save-excursion
5284 (goto-char (point-max))
5285 (forward-line -1)
5286 (let ((last-line-start (point)))
5287 (goto-char bottom)
5288 (set-window-start window (point) t)
5289 (when (not (pos-visible-in-window-p last-line-start window))
5290 (forward-line 1)
5291 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI		 5292 ;; Do horizontal recentering while we're at it.
5293 (when (and (get-buffer-window (current-buffer) t)
5294 (not (eq gnus-auto-center-summary 'vertical)))
5295 (let ((selected (selected-window)))
5296 (select-window (get-buffer-window (current-buffer) t))
5297 (gnus-summary-position-point)
5298 (gnus-horizontal-recenter)
5299 (select-window selected))))))
5300
5301(defun gnus-summary-jump-to-group (newsgroup)
5302 "Move point to NEWSGROUP in group mode buffer."
5303 ;; Keep update point of group mode buffer if visible.
5304 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
5305 (save-window-excursion
5306 ;; Take care of tree window mode.
5307 (when (get-buffer-window gnus-group-buffer)
5308 (pop-to-buffer gnus-group-buffer))
5309 (gnus-group-jump-to-group newsgroup))
5310 (save-excursion
5311 ;; Take care of tree window mode.
5312 (if (get-buffer-window gnus-group-buffer)
5313 (pop-to-buffer gnus-group-buffer)
5314 (set-buffer gnus-group-buffer))
5315 (gnus-group-jump-to-group newsgroup))))
5316
5317;; This function returns a list of article numbers based on the
5318;; difference between the ranges of read articles in this group and
5319;; the range of active articles.
5320(defun gnus-list-of-unread-articles (group)
5321 (let* ((read (gnus-info-read (gnus-get-info group)))
5322 (active (or (gnus-active group) (gnus-activate-group group)))
5323 (last (cdr active))
5324 first nlast unread)
5325 ;; If none are read, then all are unread.
5326 (if (not read)
5327 (setq first (car active))
5328 ;; If the range of read articles is a single range, then the
5329 ;; first unread article is the article after the last read
5330 ;; article. Sounds logical, doesn't it?
16409b0b
GM		 5331 (if (and (not (listp (cdr read)))
5332 (or (< (car read) (car active))
5333 (progn (setq read (list read))
5334 nil)))
6748645f 5335 (setq first (max (car active) (1+ (cdr read))))
eec82323
LMI		 5336 ;; `read' is a list of ranges.
5337 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
5338 (caar read)))
5339 1)
6748645f 5340 (setq first (car active)))
eec82323
LMI		 5341 (while read
5342 (when first
5343 (while (< first nlast)
5344 (push first unread)
5345 (setq first (1+ first))))
5346 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
5347 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
5348 (setq read (cdr read)))))
5349 ;; And add the last unread articles.
5350 (while (<= first last)
5351 (push first unread)
5352 (setq first (1+ first)))
5353 ;; Return the list of unread articles.
6748645f 5354 (delq 0 (nreverse unread))))
eec82323
LMI		 5355
5356(defun gnus-list-of-read-articles (group)
5357 "Return a list of unread, unticked and non-dormant articles."
5358 (let* ((info (gnus-get-info group))
5359 (marked (gnus-info-marks info))
5360 (active (gnus-active group)))
5361 (and info active
5362 (gnus-set-difference
5363 (gnus-sorted-complement
5364 (gnus-uncompress-range active)
5365 (gnus-list-of-unread-articles group))
5366 (append
5367 (gnus-uncompress-range (cdr (assq 'dormant marked)))
5368 (gnus-uncompress-range (cdr (assq 'tick marked))))))))
5369
5370;; Various summary commands
5371
6748645f
LMI		 5372(defun gnus-summary-select-article-buffer ()
5373 "Reconfigure windows to show article buffer."
5374 (interactive)
5375 (if (not (gnus-buffer-live-p gnus-article-buffer))
5376 (error "There is no article buffer for this summary buffer")
5377 (gnus-configure-windows 'article)
5378 (select-window (get-buffer-window gnus-article-buffer))))
5379
eec82323
LMI		 5380(defun gnus-summary-universal-argument (arg)
5381 "Perform any operation on all articles that are process/prefixed."
5382 (interactive "P")
eec82323
LMI		 5383 (let ((articles (gnus-summary-work-articles arg))
5384 func article)
5385 (if (eq
5386 (setq
5387 func
5388 (key-binding
5389 (read-key-sequence
5390 (substitute-command-keys
16409b0b 5391 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI		 5392 'undefined)
5393 (gnus-error 1 "Undefined key")
5394 (save-excursion
5395 (while articles
5396 (gnus-summary-goto-subject (setq article (pop articles)))
5397 (let (gnus-newsgroup-processable)
5398 (command-execute func))
5399 (gnus-summary-remove-process-mark article)))))
5400 (gnus-summary-position-point))
5401
5402(defun gnus-summary-toggle-truncation (&optional arg)
5403 "Toggle truncation of summary lines.
5404With arg, turn line truncation on iff arg is positive."
5405 (interactive "P")
5406 (setq truncate-lines
5407 (if (null arg) (not truncate-lines)
5408 (> (prefix-numeric-value arg) 0)))
5409 (redraw-display))
5410
5411(defun gnus-summary-reselect-current-group (&optional all rescan)
5412 "Exit and then reselect the current newsgroup.
5413The prefix argument ALL means to select all articles."
5414 (interactive "P")
eec82323
LMI		 5415 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
5416 (error "Ephemeral groups can't be reselected"))
5417 (let ((current-subject (gnus-summary-article-number))
5418 (group gnus-newsgroup-name))
5419 (setq gnus-newsgroup-begin nil)
5420 (gnus-summary-exit)
5421 ;; We have to adjust the point of group mode buffer because
5422 ;; point was moved to the next unread newsgroup by exiting.
5423 (gnus-summary-jump-to-group group)
5424 (when rescan
5425 (save-excursion
5426 (gnus-group-get-new-news-this-group 1)))
5427 (gnus-group-read-group all t)
5428 (gnus-summary-goto-subject current-subject nil t)))
5429
5430(defun gnus-summary-rescan-group (&optional all)
5431 "Exit the newsgroup, ask for new articles, and select the newsgroup."
5432 (interactive "P")
5433 (gnus-summary-reselect-current-group all t))
5434
5435(defun gnus-summary-update-info (&optional non-destructive)
5436 (save-excursion
5437 (let ((group gnus-newsgroup-name))
6748645f
LMI		 5438 (when group
5439 (when gnus-newsgroup-kill-headers
5440 (setq gnus-newsgroup-killed
5441 (gnus-compress-sequence
5442 (nconc
5443 (gnus-set-sorted-intersection
5444 (gnus-uncompress-range gnus-newsgroup-killed)
5445 (setq gnus-newsgroup-unselected
5446 (sort gnus-newsgroup-unselected '<)))
5447 (setq gnus-newsgroup-unreads
5448 (sort gnus-newsgroup-unreads '<)))
5449 t)))
5450 (unless (listp (cdr gnus-newsgroup-killed))
5451 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
5452 (let ((headers gnus-newsgroup-headers))
5453 ;; Set the new ranges of read articles.
5454 (save-excursion
5455 (set-buffer gnus-group-buffer)
5456 (gnus-undo-force-boundary))
5457 (gnus-update-read-articles
5458 group (append gnus-newsgroup-unreads gnus-newsgroup-unselected))
5459 ;; Set the current article marks.
5460 (let ((gnus-newsgroup-scored
5461 (if (and (not gnus-save-score)
5462 (not non-destructive))
5463 nil
5464 gnus-newsgroup-scored)))
5465 (save-excursion
5466 (gnus-update-marks)))
5467 ;; Do the cross-ref thing.
5468 (when gnus-use-cross-reference
5469 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
5470 ;; Do not switch windows but change the buffer to work.
a8151ef7 5471 (set-buffer gnus-group-buffer)
6748645f
LMI		 5472 (unless (gnus-ephemeral-group-p group)
5473 (gnus-group-update-group group)))))))
eec82323
LMI		 5474
5475(defun gnus-summary-save-newsrc (&optional force)
5476 "Save the current number of read/marked articles in the dribble buffer.
5477The dribble buffer will then be saved.
5478If FORCE (the prefix), also save the .newsrc file(s)."
5479 (interactive "P")
5480 (gnus-summary-update-info t)
5481 (if force
5482 (gnus-save-newsrc-file)
5483 (gnus-dribble-save)))
5484
5485(defun gnus-summary-exit (&optional temporary)
5486 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 5487`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI		 5488 (interactive)
5489 (gnus-set-global-variables)
16409b0b
GM		 5490 (when (gnus-buffer-live-p gnus-article-buffer)
5491 (save-excursion
5492 (set-buffer gnus-article-buffer)
5493 (mm-destroy-parts gnus-article-mime-handles)
5494 ;; Set it to nil for safety reason.
5495 (setq gnus-article-mime-handle-alist nil)
5496 (setq gnus-article-mime-handles nil)))
eec82323 5497 (gnus-kill-save-kill-buffer)
6748645f 5498 (gnus-async-halt-prefetch)
eec82323
LMI		 5499 (let* ((group gnus-newsgroup-name)
5500 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
5501 (mode major-mode)
a8151ef7 5502 (group-point nil)
eec82323 5503 (buf (current-buffer)))
16409b0b
GM		 5504 (unless quit-config
5505 ;; Do adaptive scoring, and possibly save score files.
5506 (when gnus-newsgroup-adaptive
5507 (gnus-score-adaptive))
5508 (when gnus-use-scoring
5509 (gnus-score-save)))
6748645f 5510 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI		 5511 ;; If we have several article buffers, we kill them at exit.
5512 (unless gnus-single-article-buffer
5513 (gnus-kill-buffer gnus-original-article-buffer)
5514 (setq gnus-article-current nil))
5515 (when gnus-use-cache
5516 (gnus-cache-possibly-remove-articles)
5517 (gnus-cache-save-buffers))
5518 (gnus-async-prefetch-remove-group group)
5519 (when gnus-suppress-duplicates
5520 (gnus-dup-enter-articles))
5521 (when gnus-use-trees
5522 (gnus-tree-close group))
16409b0b
GM		 5523 (when gnus-use-cache
5524 (gnus-cache-write-active))
6748645f
LMI		 5525 ;; Remove entries for this group.
5526 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI		 5527 ;; Make all changes in this group permanent.
5528 (unless quit-config
6748645f 5529 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 5530 (gnus-summary-update-info))
eec82323
LMI		 5531 (gnus-close-group group)
5532 ;; Make sure where we were, and go to next newsgroup.
5533 (set-buffer gnus-group-buffer)
5534 (unless quit-config
5535 (gnus-group-jump-to-group group))
6748645f
LMI		 5536 (gnus-run-hooks 'gnus-summary-exit-hook)
5537 (unless (or quit-config
5538 ;; If this group has disappeared from the summary
5539 ;; buffer, don't skip forwards.
5540 (not (string= group (gnus-group-group-name))))
eec82323 5541 (gnus-group-next-unread-group 1))
a8151ef7 5542 (setq group-point (point))
eec82323
LMI		 5543 (if temporary
5544 nil ;Nothing to do.
5545 ;; If we have several article buffers, we kill them at exit.
5546 (unless gnus-single-article-buffer
5547 (gnus-kill-buffer gnus-article-buffer)
5548 (gnus-kill-buffer gnus-original-article-buffer)
5549 (setq gnus-article-current nil))
5550 (set-buffer buf)
5551 (if (not gnus-kill-summary-on-exit)
5552 (gnus-deaden-summary)
5553 ;; We set all buffer-local variables to nil. It is unclear why
5554 ;; this is needed, but if we don't, buffer-local variables are
5555 ;; not garbage-collected, it seems. This would the lead to en
5556 ;; ever-growing Emacs.
5557 (gnus-summary-clear-local-variables)
5558 (when (get-buffer gnus-article-buffer)
5559 (bury-buffer gnus-article-buffer))
5560 ;; We clear the global counterparts of the buffer-local
5561 ;; variables as well, just to be on the safe side.
5562 (set-buffer gnus-group-buffer)
5563 (gnus-summary-clear-local-variables)
5564 ;; Return to group mode buffer.
5565 (when (eq mode 'gnus-summary-mode)
5566 (gnus-kill-buffer buf)))
5567 (setq gnus-current-select-method gnus-select-method)
5568 (pop-to-buffer gnus-group-buffer)
eec82323
LMI		 5569 (if (not quit-config)
5570 (progn
a8151ef7 5571 (goto-char group-point)
eec82323
LMI		 5572 (gnus-configure-windows 'group 'force))
5573 (gnus-handle-ephemeral-exit quit-config))
6748645f 5574 ;; Clear the current group name.
eec82323
LMI		 5575 (unless quit-config
5576 (setq gnus-newsgroup-name nil)))))
5577
5578(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
5579(defun gnus-summary-exit-no-update (&optional no-questions)
5580 "Quit reading current newsgroup without updating read article info."
5581 (interactive)
eec82323
LMI		 5582 (let* ((group gnus-newsgroup-name)
5583 (quit-config (gnus-group-quit-config group)))
5584 (when (or no-questions
5585 gnus-expert-user
5586 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 5587 (gnus-async-halt-prefetch)
16409b0b
GM		 5588 (mapcar 'funcall
5589 (delq 'gnus-summary-expire-articles
5590 (copy-sequence gnus-summary-prepare-exit-hook)))
5591 (when (gnus-buffer-live-p gnus-article-buffer)
5592 (save-excursion
5593 (set-buffer gnus-article-buffer)
5594 (mm-destroy-parts gnus-article-mime-handles)
5595 ;; Set it to nil for safety reason.
5596 (setq gnus-article-mime-handle-alist nil)
5597 (setq gnus-article-mime-handles nil)))
eec82323
LMI		 5598 ;; If we have several article buffers, we kill them at exit.
5599 (unless gnus-single-article-buffer
5600 (gnus-kill-buffer gnus-article-buffer)
5601 (gnus-kill-buffer gnus-original-article-buffer)
5602 (setq gnus-article-current nil))
5603 (if (not gnus-kill-summary-on-exit)
5604 (gnus-deaden-summary)
5605 (gnus-close-group group)
5606 (gnus-summary-clear-local-variables)
5607 (set-buffer gnus-group-buffer)
5608 (gnus-summary-clear-local-variables)
5609 (when (get-buffer gnus-summary-buffer)
5610 (kill-buffer gnus-summary-buffer)))
5611 (unless gnus-single-article-buffer
5612 (setq gnus-article-current nil))
5613 (when gnus-use-trees
5614 (gnus-tree-close group))
5615 (gnus-async-prefetch-remove-group group)
5616 (when (get-buffer gnus-article-buffer)
5617 (bury-buffer gnus-article-buffer))
5618 ;; Return to the group buffer.
5619 (gnus-configure-windows 'group 'force)
5620 ;; Clear the current group name.
5621 (setq gnus-newsgroup-name nil)
5622 (when (equal (gnus-group-group-name) group)
5623 (gnus-group-next-unread-group 1))
5624 (when quit-config
5625 (gnus-handle-ephemeral-exit quit-config)))))
5626
5627(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI		 5628 "Handle movement when leaving an ephemeral group.
5629The state which existed when entering the ephemeral is reset."
eec82323
LMI		 5630 (if (not (buffer-name (car quit-config)))
5631 (gnus-configure-windows 'group 'force)
5632 (set-buffer (car quit-config))
5633 (cond ((eq major-mode 'gnus-summary-mode)
5634 (gnus-set-global-variables))
5635 ((eq major-mode 'gnus-article-mode)
5636 (save-excursion
5637 ;; The `gnus-summary-buffer' variable may point
5638 ;; to the old summary buffer when using a single
5639 ;; article buffer.
5640 (unless (gnus-buffer-live-p gnus-summary-buffer)
5641 (set-buffer gnus-group-buffer))
5642 (set-buffer gnus-summary-buffer)
5643 (gnus-set-global-variables))))
5644 (if (or (eq (cdr quit-config) 'article)
5645 (eq (cdr quit-config) 'pick))
5646 (progn
5647 ;; The current article may be from the ephemeral group
5648 ;; thus it is best that we reload this article
5649 (gnus-summary-show-article)
5650 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
5651 (gnus-configure-windows 'pick 'force)
5652 (gnus-configure-windows (cdr quit-config) 'force)))
5653 (gnus-configure-windows (cdr quit-config) 'force))
5654 (when (eq major-mode 'gnus-summary-mode)
5655 (gnus-summary-next-subject 1 nil t)
5656 (gnus-summary-recenter)
5657 (gnus-summary-position-point))))
5658
5659;;; Dead summaries.
5660
5661(defvar gnus-dead-summary-mode-map nil)
5662
5663(unless gnus-dead-summary-mode-map
5664 (setq gnus-dead-summary-mode-map (make-keymap))
5665 (suppress-keymap gnus-dead-summary-mode-map)
5666 (substitute-key-definition
5667 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
a8151ef7 5668 (let ((keys '("\C-d" "\r" "\177" [delete])))
eec82323
LMI		 5669 (while keys
5670 (define-key gnus-dead-summary-mode-map
5671 (pop keys) 'gnus-summary-wake-up-the-dead))))
5672
5673(defvar gnus-dead-summary-mode nil
5674 "Minor mode for Gnus summary buffers.")
5675
5676(defun gnus-dead-summary-mode (&optional arg)
5677 "Minor mode for Gnus summary buffers."
5678 (interactive "P")
5679 (when (eq major-mode 'gnus-summary-mode)
5680 (make-local-variable 'gnus-dead-summary-mode)
5681 (setq gnus-dead-summary-mode
5682 (if (null arg) (not gnus-dead-summary-mode)
5683 (> (prefix-numeric-value arg) 0)))
5684 (when gnus-dead-summary-mode
a8151ef7
LMI		 5685 (gnus-add-minor-mode
5686 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI		 5687
5688(defun gnus-deaden-summary ()
5689 "Make the current summary buffer into a dead summary buffer."
5690 ;; Kill any previous dead summary buffer.
5691 (when (and gnus-dead-summary
5692 (buffer-name gnus-dead-summary))
5693 (save-excursion
5694 (set-buffer gnus-dead-summary)
5695 (when gnus-dead-summary-mode
5696 (kill-buffer (current-buffer)))))
5697 ;; Make this the current dead summary.
5698 (setq gnus-dead-summary (current-buffer))
5699 (gnus-dead-summary-mode 1)
5700 (let ((name (buffer-name)))
5701 (when (string-match "Summary" name)
5702 (rename-buffer
5703 (concat (substring name 0 (match-beginning 0)) "Dead "
5704 (substring name (match-beginning 0)))
16409b0b
GM		 5705 t)
5706 (bury-buffer))))
eec82323
LMI		 5707
5708(defun gnus-kill-or-deaden-summary (buffer)
5709 "Kill or deaden the summary BUFFER."
6748645f
LMI		 5710 (save-excursion
5711 (when (and (buffer-name buffer)
5712 (not gnus-single-article-buffer))
5713 (save-excursion
5714 (set-buffer buffer)
5715 (gnus-kill-buffer gnus-article-buffer)
5716 (gnus-kill-buffer gnus-original-article-buffer)))
5717 (cond (gnus-kill-summary-on-exit
5718 (when (and gnus-use-trees
5719 (gnus-buffer-exists-p buffer))
5720 (save-excursion
5721 (set-buffer buffer)
5722 (gnus-tree-close gnus-newsgroup-name)))
5723 (gnus-kill-buffer buffer))
5724 ((gnus-buffer-exists-p buffer)
eec82323 5725 (save-excursion
6748645f
LMI		 5726 (set-buffer buffer)
5727 (gnus-deaden-summary))))))
eec82323
LMI		 5728
5729(defun gnus-summary-wake-up-the-dead (&rest args)
5730 "Wake up the dead summary buffer."
5731 (interactive)
5732 (gnus-dead-summary-mode -1)
5733 (let ((name (buffer-name)))
5734 (when (string-match "Dead " name)
5735 (rename-buffer
5736 (concat (substring name 0 (match-beginning 0))
5737 (substring name (match-end 0)))
5738 t)))
5739 (gnus-message 3 "This dead summary is now alive again"))
5740
5741;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
5742(defun gnus-summary-fetch-faq (&optional faq-dir)
5743 "Fetch the FAQ for the current group.
5744If FAQ-DIR (the prefix), prompt for a directory to search for the faq
5745in."
5746 (interactive
5747 (list
5748 (when current-prefix-arg
5749 (completing-read
5750 "Faq dir: " (and (listp gnus-group-faq-directory)
a8151ef7
LMI		 5751 (mapcar (lambda (file) (list file))
5752 gnus-group-faq-directory))))))
eec82323
LMI		 5753 (let (gnus-faq-buffer)
5754 (when (setq gnus-faq-buffer
5755 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
5756 (gnus-configure-windows 'summary-faq))))
5757
5758;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
5759(defun gnus-summary-describe-group (&optional force)
5760 "Describe the current newsgroup."
5761 (interactive "P")
5762 (gnus-group-describe-group force gnus-newsgroup-name))
5763
5764(defun gnus-summary-describe-briefly ()
5765 "Describe summary mode commands briefly."
5766 (interactive)
16409b0b 5767 (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		 5768
5769;; Walking around group mode buffer from summary mode.
5770
5771(defun gnus-summary-next-group (&optional no-article target-group backward)
5772 "Exit current newsgroup and then select next unread newsgroup.
5773If prefix argument NO-ARTICLE is non-nil, no article is selected
5774initially. If NEXT-GROUP, go to this group. If BACKWARD, go to
5775previous group instead."
5776 (interactive "P")
eec82323
LMI		 5777 ;; Stop pre-fetching.
5778 (gnus-async-halt-prefetch)
5779 (let ((current-group gnus-newsgroup-name)
5780 (current-buffer (current-buffer))
5781 entered)
5782 ;; First we semi-exit this group to update Xrefs and all variables.
5783 ;; We can't do a real exit, because the window conf must remain
5784 ;; the same in case the user is prompted for info, and we don't
5785 ;; want the window conf to change before that...
5786 (gnus-summary-exit t)
5787 (while (not entered)
5788 ;; Then we find what group we are supposed to enter.
5789 (set-buffer gnus-group-buffer)
5790 (gnus-group-jump-to-group current-group)
5791 (setq target-group
5792 (or target-group
5793 (if (eq gnus-keep-same-level 'best)
5794 (gnus-summary-best-group gnus-newsgroup-name)
5795 (gnus-summary-search-group backward gnus-keep-same-level))))
5796 (if (not target-group)
5797 ;; There are no further groups, so we return to the group
5798 ;; buffer.
5799 (progn
5800 (gnus-message 5 "Returning to the group buffer")
5801 (setq entered t)
5802 (when (gnus-buffer-live-p current-buffer)
5803 (set-buffer current-buffer)
5804 (gnus-summary-exit))
6748645f 5805 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI		 5806 ;; We try to enter the target group.
5807 (gnus-group-jump-to-group target-group)
5808 (let ((unreads (gnus-group-group-unread)))
5809 (if (and (or (eq t unreads)
5810 (and unreads (not (zerop unreads))))
5811 (gnus-summary-read-group
a8151ef7 5812 target-group nil no-article
6748645f
LMI		 5813 (and (buffer-name current-buffer) current-buffer)
5814 nil backward))
eec82323
LMI		 5815 (setq entered t)
5816 (setq current-group target-group
5817 target-group nil)))))))
5818
5819(defun gnus-summary-prev-group (&optional no-article)
5820 "Exit current newsgroup and then select previous unread newsgroup.
5821If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
5822 (interactive "P")
5823 (gnus-summary-next-group no-article nil t))
5824
5825;; Walking around summary lines.
5826
6748645f 5827(defun gnus-summary-first-subject (&optional unread undownloaded)
eec82323
LMI		 5828 "Go to the first unread subject.
5829If UNREAD is non-nil, go to the first unread article.
5830Returns the article selected or nil if there are no unread articles."
5831 (interactive "P")
5832 (prog1
5833 (cond
5834 ;; Empty summary.
5835 ((null gnus-newsgroup-data)
5836 (gnus-message 3 "No articles in the group")
5837 nil)
5838 ;; Pick the first article.
5839 ((not unread)
5840 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
5841 (gnus-data-number (car gnus-newsgroup-data)))
5842 ;; No unread articles.
5843 ((null gnus-newsgroup-unreads)
5844 (gnus-message 3 "No more unread articles")
5845 nil)
5846 ;; Find the first unread article.
5847 (t
5848 (let ((data gnus-newsgroup-data))
5849 (while (and data
6748645f
LMI		 5850 (and (not (and undownloaded
5851 (eq gnus-undownloaded-mark
5852 (gnus-data-mark (car data)))))
5853 (not (gnus-data-unread-p (car data)))))
eec82323
LMI		 5854 (setq data (cdr data)))
5855 (when data
5856 (goto-char (gnus-data-pos (car data)))
5857 (gnus-data-number (car data))))))
5858 (gnus-summary-position-point)))
5859
5860(defun gnus-summary-next-subject (n &optional unread dont-display)
5861 "Go to next N'th summary line.
5862If N is negative, go to the previous N'th subject line.
5863If UNREAD is non-nil, only unread articles are selected.
5864The difference between N and the actual number of steps taken is
5865returned."
5866 (interactive "p")
5867 (let ((backward (< n 0))
5868 (n (abs n)))
5869 (while (and (> n 0)
5870 (if backward
5871 (gnus-summary-find-prev unread)
5872 (gnus-summary-find-next unread)))
16409b0b
GM		 5873 (unless (zerop (setq n (1- n)))
5874 (gnus-summary-show-thread)))
eec82323
LMI		 5875 (when (/= 0 n)
5876 (gnus-message 7 "No more%s articles"
5877 (if unread " unread" "")))
5878 (unless dont-display
5879 (gnus-summary-recenter)
5880 (gnus-summary-position-point))
5881 n))
5882
5883(defun gnus-summary-next-unread-subject (n)
5884 "Go to next N'th unread summary line."
5885 (interactive "p")
5886 (gnus-summary-next-subject n t))
5887
5888(defun gnus-summary-prev-subject (n &optional unread)
5889 "Go to previous N'th summary line.
5890If optional argument UNREAD is non-nil, only unread article is selected."
5891 (interactive "p")
5892 (gnus-summary-next-subject (- n) unread))
5893
5894(defun gnus-summary-prev-unread-subject (n)
5895 "Go to previous N'th unread summary line."
5896 (interactive "p")
5897 (gnus-summary-next-subject (- n) t))
5898
5899(defun gnus-summary-goto-subject (article &optional force silent)
5900 "Go the subject line of ARTICLE.
5901If FORCE, also allow jumping to articles not currently shown."
5902 (interactive "nArticle number: ")
5903 (let ((b (point))
5904 (data (gnus-data-find article)))
5905 ;; We read in the article if we have to.
5906 (and (not data)
5907 force
6748645f
LMI		 5908 (gnus-summary-insert-subject
5909 article
5910 (if (or (numberp force) (vectorp force)) force)
5911 t)
eec82323
LMI		 5912 (setq data (gnus-data-find article)))
5913 (goto-char b)
5914 (if (not data)
5915 (progn
5916 (unless silent
5917 (gnus-message 3 "Can't find article %d" article))
5918 nil)
5919 (goto-char (gnus-data-pos data))
6748645f 5920 (gnus-summary-position-point)
eec82323
LMI		 5921 article)))
5922
5923;; Walking around summary lines with displaying articles.
5924
5925(defun gnus-summary-expand-window (&optional arg)
5926 "Make the summary buffer take up the entire Emacs frame.
5927Given a prefix, will force an `article' buffer configuration."
5928 (interactive "P")
eec82323
LMI		 5929 (if arg
5930 (gnus-configure-windows 'article 'force)
5931 (gnus-configure-windows 'summary 'force)))
5932
5933(defun gnus-summary-display-article (article &optional all-header)
5934 "Display ARTICLE in article buffer."
d4dfaa19
DL		 5935 (when (gnus-buffer-live-p gnus-article-buffer)
5936 (with-current-buffer gnus-article-buffer
5937 (mm-enable-multibyte-mule4)))
eec82323
LMI		 5938 (gnus-set-global-variables)
5939 (if (null article)
5940 nil
5941 (prog1
5942 (if gnus-summary-display-article-function
5943 (funcall gnus-summary-display-article-function article all-header)
5944 (gnus-article-prepare article all-header))
6748645f 5945 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI		 5946 (when (and gnus-current-article
5947 (not (zerop gnus-current-article)))
5948 (gnus-summary-goto-subject gnus-current-article))
5949 (gnus-summary-recenter)
5950 (when (and gnus-use-trees gnus-show-threads)
5951 (gnus-possibly-generate-tree article)
5952 (gnus-highlight-selected-tree article))
5953 ;; Successfully display article.
5954 (gnus-article-set-window-start
5955 (cdr (assq article gnus-newsgroup-bookmarks))))))
5956
5957(defun gnus-summary-select-article (&optional all-headers force pseudo article)
5958 "Select the current article.
5959If ALL-HEADERS is non-nil, show all header fields. If FORCE is
5960non-nil, the article will be re-fetched even if it already present in
5961the article buffer. If PSEUDO is non-nil, pseudo-articles will also
5962be displayed."
5963 ;; Make sure we are in the summary buffer to work around bbdb bug.
5964 (unless (eq major-mode 'gnus-summary-mode)
5965 (set-buffer gnus-summary-buffer))
5966 (let ((article (or article (gnus-summary-article-number)))
5967 (all-headers (not (not all-headers))) ;Must be T or NIL.
16409b0b 5968 gnus-summary-display-article-function)
eec82323
LMI		 5969 (and (not pseudo)
5970 (gnus-summary-article-pseudo-p article)
a8151ef7 5971 (error "This is a pseudo-article"))
16409b0b
GM		 5972 (save-excursion
5973 (set-buffer gnus-summary-buffer)
5974 (if (or (and gnus-single-article-buffer
5975 (or (null gnus-current-article)
5976 (null gnus-article-current)
5977 (null (get-buffer gnus-article-buffer))
5978 (not (eq article (cdr gnus-article-current)))
5979 (not (equal (car gnus-article-current)
5980 gnus-newsgroup-name))))
5981 (and (not gnus-single-article-buffer)
5982 (or (null gnus-current-article)
5983 (not (eq gnus-current-article article))))
5984 force)
5985 ;; The requested article is different from the current article.
5986 (progn
16409b0b
GM		 5987 (gnus-summary-display-article article all-headers)
5988 (when (gnus-buffer-live-p gnus-article-buffer)
d4dfaa19 5989 (with-current-buffer gnus-article-buffer
16409b0b 5990 (if (not gnus-article-decoded-p) ;; a local variable
d4dfaa19 5991 (mm-disable-multibyte-mule4))))
eec82323
LMI		 5992 (when (or all-headers gnus-show-all-headers)
5993 (gnus-article-show-all-headers))
16409b0b
GM		 5994 (gnus-article-set-window-start
5995 (cdr (assq article gnus-newsgroup-bookmarks)))
5996 article)
5997 (when (or all-headers gnus-show-all-headers)
5998 (gnus-article-show-all-headers))
5999 'old))))
eec82323
LMI		 6000
6001(defun gnus-summary-set-current-mark (&optional current-mark)
6002 "Obsolete function."
6003 nil)
6004
6005(defun gnus-summary-next-article (&optional unread subject backward push)
6006 "Select the next article.
6007If UNREAD, only unread articles are selected.
6008If SUBJECT, only articles with SUBJECT are selected.
6009If BACKWARD, the previous article is selected instead of the next."
6010 (interactive "P")
eec82323
LMI		 6011 (cond
6012 ;; Is there such an article?
6013 ((and (gnus-summary-search-forward unread subject backward)
6014 (or (gnus-summary-display-article (gnus-summary-article-number))
6015 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
6016 (gnus-summary-position-point))
6017 ;; If not, we try the first unread, if that is wanted.
6018 ((and subject
6019 gnus-auto-select-same
6020 (gnus-summary-first-unread-article))
6021 (gnus-summary-position-point)
6022 (gnus-message 6 "Wrapped"))
6023 ;; Try to get next/previous article not displayed in this group.
6024 ((and gnus-auto-extend-newsgroup
6025 (not unread) (not subject))
6026 (gnus-summary-goto-article
6027 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 6028 nil (count-lines (point-min) (point))))
eec82323
LMI		 6029 ;; Go to next/previous group.
6030 (t
6031 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
6032 (gnus-summary-jump-to-group gnus-newsgroup-name))
6033 (let ((cmd last-command-char)
6034 (point
6035 (save-excursion
6036 (set-buffer gnus-group-buffer)
6037 (point)))
6038 (group
6039 (if (eq gnus-keep-same-level 'best)
6040 (gnus-summary-best-group gnus-newsgroup-name)
6041 (gnus-summary-search-group backward gnus-keep-same-level))))
6042 ;; For some reason, the group window gets selected. We change
6043 ;; it back.
6044 (select-window (get-buffer-window (current-buffer)))
6045 ;; Select next unread newsgroup automagically.
6046 (cond
6047 ((or (not gnus-auto-select-next)
6048 (not cmd))
6049 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
6050 ((or (eq gnus-auto-select-next 'quietly)
6051 (and (eq gnus-auto-select-next 'slightly-quietly)
6052 push)
6053 (and (eq gnus-auto-select-next 'almost-quietly)
6054 (gnus-summary-last-article-p)))
6055 ;; Select quietly.
6056 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
6057 (gnus-summary-exit)
6058 (gnus-message 7 "No more%s articles (%s)..."
6059 (if unread " unread" "")
6060 (if group (concat "selecting " group)
6061 "exiting"))
6062 (gnus-summary-next-group nil group backward)))
6063 (t
6064 (when (gnus-key-press-event-p last-input-event)
6065 (gnus-summary-walk-group-buffer
6066 gnus-newsgroup-name cmd unread backward point))))))))
6067
6068(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
6069 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
6070 (?\C-p (gnus-group-prev-unread-group 1))))
6071 (cursor-in-echo-area t)
6072 keve key group ended)
6073 (save-excursion
6074 (set-buffer gnus-group-buffer)
6075 (goto-char start)
6076 (setq group
6077 (if (eq gnus-keep-same-level 'best)
6078 (gnus-summary-best-group gnus-newsgroup-name)
6079 (gnus-summary-search-group backward gnus-keep-same-level))))
6080 (while (not ended)
6081 (gnus-message
6082 5 "No more%s articles%s" (if unread " unread" "")
6083 (if (and group
6084 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
6085 (format " (Type %s for %s [%s])"
6086 (single-key-description cmd) group
6087 (car (gnus-gethash group gnus-newsrc-hashtb)))
6088 (format " (Type %s to exit %s)"
6089 (single-key-description cmd)
6090 gnus-newsgroup-name)))
6091 ;; Confirm auto selection.
6092 (setq key (car (setq keve (gnus-read-event-char))))
6093 (setq ended t)
6094 (cond
6095 ((assq key keystrokes)
6096 (let ((obuf (current-buffer)))
6097 (switch-to-buffer gnus-group-buffer)
6098 (when group
6099 (gnus-group-jump-to-group group))
6100 (eval (cadr (assq key keystrokes)))
6101 (setq group (gnus-group-group-name))
6102 (switch-to-buffer obuf))
6103 (setq ended nil))
6104 ((equal key cmd)
6105 (if (or (not group)
6106 (gnus-ephemeral-group-p gnus-newsgroup-name))
6107 (gnus-summary-exit)
6108 (gnus-summary-next-group nil group backward)))
6109 (t
6110 (push (cdr keve) unread-command-events))))))
6111
6112(defun gnus-summary-next-unread-article ()
6113 "Select unread article after current one."
6114 (interactive)
6115 (gnus-summary-next-article
6116 (or (not (eq gnus-summary-goto-unread 'never))
6117 (gnus-summary-last-article-p (gnus-summary-article-number)))
6118 (and gnus-auto-select-same
6119 (gnus-summary-article-subject))))
6120
6121(defun gnus-summary-prev-article (&optional unread subject)
6122 "Select the article after the current one.
6123If UNREAD is non-nil, only unread articles are selected."
6124 (interactive "P")
6125 (gnus-summary-next-article unread subject t))
6126
6127(defun gnus-summary-prev-unread-article ()
6128 "Select unread article before current one."
6129 (interactive)
6130 (gnus-summary-prev-article
6131 (or (not (eq gnus-summary-goto-unread 'never))
6132 (gnus-summary-first-article-p (gnus-summary-article-number)))
6133 (and gnus-auto-select-same
6134 (gnus-summary-article-subject))))
6135
6136(defun gnus-summary-next-page (&optional lines circular)
6137 "Show next page of the selected article.
6138If at the end of the current article, select the next article.
6139LINES says how many lines should be scrolled up.
6140
6141If CIRCULAR is non-nil, go to the start of the article instead of
6142selecting the next article when reaching the end of the current
6143article."
6144 (interactive "P")
6145 (setq gnus-summary-buffer (current-buffer))
6146 (gnus-set-global-variables)
6147 (let ((article (gnus-summary-article-number))
6148 (article-window (get-buffer-window gnus-article-buffer t))
6149 endp)
6748645f
LMI		 6150 ;; If the buffer is empty, we have no article.
6151 (unless article
6152 (error "No article to select"))
eec82323
LMI		 6153 (gnus-configure-windows 'article)
6154 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
6155 (if (and (eq gnus-summary-goto-unread 'never)
6156 (not (gnus-summary-last-article-p article)))
6157 (gnus-summary-next-article)
6158 (gnus-summary-next-unread-article))
6159 (if (or (null gnus-current-article)
6160 (null gnus-article-current)
6161 (/= article (cdr gnus-article-current))
6162 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
6163 ;; Selected subject is different from current article's.
6164 (gnus-summary-display-article article)
6165 (when article-window
6166 (gnus-eval-in-buffer-window gnus-article-buffer
6167 (setq endp (gnus-article-next-page lines)))
6168 (when endp
6169 (cond (circular
6170 (gnus-summary-beginning-of-article))
6171 (lines
6172 (gnus-message 3 "End of message"))
6173 ((null lines)
6174 (if (and (eq gnus-summary-goto-unread 'never)
6175 (not (gnus-summary-last-article-p article)))
6176 (gnus-summary-next-article)
6177 (gnus-summary-next-unread-article))))))))
6178 (gnus-summary-recenter)
6179 (gnus-summary-position-point)))
6180
6181(defun gnus-summary-prev-page (&optional lines move)
6182 "Show previous page of selected article.
6183Argument LINES specifies lines to be scrolled down.
6184If MOVE, move to the previous unread article if point is at
6185the beginning of the buffer."
6186 (interactive "P")
eec82323
LMI		 6187 (let ((article (gnus-summary-article-number))
6188 (article-window (get-buffer-window gnus-article-buffer t))
6189 endp)
6190 (gnus-configure-windows 'article)
6191 (if (or (null gnus-current-article)
6192 (null gnus-article-current)
6193 (/= article (cdr gnus-article-current))
6194 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
6195 ;; Selected subject is different from current article's.
6196 (gnus-summary-display-article article)
6197 (gnus-summary-recenter)
6198 (when article-window
6199 (gnus-eval-in-buffer-window gnus-article-buffer
6200 (setq endp (gnus-article-prev-page lines)))
6201 (when (and move endp)
6202 (cond (lines
6203 (gnus-message 3 "Beginning of message"))
6204 ((null lines)
6205 (if (and (eq gnus-summary-goto-unread 'never)
6206 (not (gnus-summary-first-article-p article)))
6207 (gnus-summary-prev-article)
6208 (gnus-summary-prev-unread-article))))))))
6209 (gnus-summary-position-point))
6210
6211(defun gnus-summary-prev-page-or-article (&optional lines)
6212 "Show previous page of selected article.
6213Argument LINES specifies lines to be scrolled down.
6214If at the beginning of the article, go to the next article."
6215 (interactive "P")
6216 (gnus-summary-prev-page lines t))
6217
6218(defun gnus-summary-scroll-up (lines)
6219 "Scroll up (or down) one line current article.
6220Argument LINES specifies lines to be scrolled up (or down if negative)."
6221 (interactive "p")
eec82323
LMI		 6222 (gnus-configure-windows 'article)
6223 (gnus-summary-show-thread)
6224 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
6225 (gnus-eval-in-buffer-window gnus-article-buffer
6226 (cond ((> lines 0)
6227 (when (gnus-article-next-page lines)
6228 (gnus-message 3 "End of message")))
6229 ((< lines 0)
6230 (gnus-article-prev-page (- lines))))))
6231 (gnus-summary-recenter)
6232 (gnus-summary-position-point))
6233
6748645f
LMI		 6234(defun gnus-summary-scroll-down (lines)
6235 "Scroll down (or up) one line current article.
6236Argument LINES specifies lines to be scrolled down (or up if negative)."
6237 (interactive "p")
6238 (gnus-summary-scroll-up (- lines)))
6239
eec82323
LMI		 6240(defun gnus-summary-next-same-subject ()
6241 "Select next article which has the same subject as current one."
6242 (interactive)
eec82323
LMI		 6243 (gnus-summary-next-article nil (gnus-summary-article-subject)))
6244
6245(defun gnus-summary-prev-same-subject ()
6246 "Select previous article which has the same subject as current one."
6247 (interactive)
eec82323
LMI		 6248 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
6249
6250(defun gnus-summary-next-unread-same-subject ()
6251 "Select next unread article which has the same subject as current one."
6252 (interactive)
eec82323
LMI		 6253 (gnus-summary-next-article t (gnus-summary-article-subject)))
6254
6255(defun gnus-summary-prev-unread-same-subject ()
6256 "Select previous unread article which has the same subject as current one."
6257 (interactive)
eec82323
LMI		 6258 (gnus-summary-prev-article t (gnus-summary-article-subject)))
6259
6260(defun gnus-summary-first-unread-article ()
6261 "Select the first unread article.
6262Return nil if there are no unread articles."
6263 (interactive)
eec82323
LMI		 6264 (prog1
6265 (when (gnus-summary-first-subject t)
6266 (gnus-summary-show-thread)
6267 (gnus-summary-first-subject t)
6268 (gnus-summary-display-article (gnus-summary-article-number)))
6269 (gnus-summary-position-point)))
6270
16409b0b
GM		 6271(defun gnus-summary-first-unread-subject ()
6272 "Place the point on the subject line of the first unread article.
6273Return nil if there are no unread articles."
6274 (interactive)
6275 (prog1
6276 (when (gnus-summary-first-subject t)
6277 (gnus-summary-show-thread)
6278 (gnus-summary-first-subject t))
6279 (gnus-summary-position-point)))
6280
eec82323
LMI		 6281(defun gnus-summary-first-article ()
6282 "Select the first article.
6283Return nil if there are no articles."
6284 (interactive)
eec82323
LMI		 6285 (prog1
6286 (when (gnus-summary-first-subject)
16409b0b
GM		 6287 (gnus-summary-show-thread)
6288 (gnus-summary-first-subject)
6289 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI		 6290 (gnus-summary-position-point)))
6291
6292(defun gnus-summary-best-unread-article ()
6293 "Select the unread article with the highest score."
6294 (interactive)
eec82323
LMI		 6295 (let ((best -1000000)
6296 (data gnus-newsgroup-data)
6297 article score)
6298 (while data
6299 (and (gnus-data-unread-p (car data))
6300 (> (setq score
6301 (gnus-summary-article-score (gnus-data-number (car data))))
6302 best)
6303 (setq best score
6304 article (gnus-data-number (car data))))
6305 (setq data (cdr data)))
6306 (prog1
6307 (if article
6308 (gnus-summary-goto-article article)
6309 (error "No unread articles"))
6310 (gnus-summary-position-point))))
6311
6312(defun gnus-summary-last-subject ()
6313 "Go to the last displayed subject line in the group."
6314 (let ((article (gnus-data-number (car (gnus-data-list t)))))
6315 (when article
6316 (gnus-summary-goto-subject article))))
6317
6318(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI		 6319 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
6320If ALL-HEADERS is non-nil, no header lines are hidden.
6321If FORCE, go to the article even if it isn't displayed. If FORCE
6322is a number, it is the line the article is to be displayed on."
eec82323
LMI		 6323 (interactive
6324 (list
6748645f
LMI		 6325 (completing-read
6326 "Article number or Message-ID: "
6327 (mapcar (lambda (number) (list (int-to-string number)))
6328 gnus-newsgroup-limit))
eec82323
LMI		 6329 current-prefix-arg
6330 t))
6331 (prog1
6748645f
LMI		 6332 (if (and (stringp article)
6333 (string-match "@" article))
6334 (gnus-summary-refer-article article)
6335 (when (stringp article)
6336 (setq article (string-to-number article)))
6337 (if (gnus-summary-goto-subject article force)
6338 (gnus-summary-display-article article all-headers)
6339 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI		 6340 (gnus-summary-position-point)))
6341
6342(defun gnus-summary-goto-last-article ()
6343 "Go to the previously read article."
6344 (interactive)
6345 (prog1
6346 (when gnus-last-article
6748645f 6347 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI		 6348 (gnus-summary-position-point)))
6349
6350(defun gnus-summary-pop-article (number)
6351 "Pop one article off the history and go to the previous.
6352NUMBER articles will be popped off."
6353 (interactive "p")
6354 (let (to)
6355 (setq gnus-newsgroup-history
6356 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
6357 (if to
6748645f 6358 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI		 6359 (error "Article history empty")))
6360 (gnus-summary-position-point))
6361
6362;; Summary commands and functions for limiting the summary buffer.
6363
6364(defun gnus-summary-limit-to-articles (n)
6365 "Limit the summary buffer to the next N articles.
6366If not given a prefix, use the process marked articles instead."
6367 (interactive "P")
eec82323
LMI		 6368 (prog1
6369 (let ((articles (gnus-summary-work-articles n)))
6370 (setq gnus-newsgroup-processable nil)
6371 (gnus-summary-limit articles))
6372 (gnus-summary-position-point)))
6373
6374(defun gnus-summary-pop-limit (&optional total)
6375 "Restore the previous limit.
6376If given a prefix, remove all limits."
6377 (interactive "P")
eec82323
LMI		 6378 (when total
6379 (setq gnus-newsgroup-limits
6380 (list (mapcar (lambda (h) (mail-header-number h))
6381 gnus-newsgroup-headers))))
6382 (unless gnus-newsgroup-limits
6383 (error "No limit to pop"))
6384 (prog1
6385 (gnus-summary-limit nil 'pop)
6386 (gnus-summary-position-point)))
6387
6388(defun gnus-summary-limit-to-subject (subject &optional header)
6389 "Limit the summary buffer to articles that have subjects that match a regexp."
6390 (interactive "sLimit to subject (regexp): ")
6391 (unless header
6392 (setq header "subject"))
6393 (when (not (equal "" subject))
6394 (prog1
6395 (let ((articles (gnus-summary-find-matching
6396 (or header "subject") subject 'all)))
6397 (unless articles
6398 (error "Found no matches for \"%s\"" subject))
6399 (gnus-summary-limit articles))
6400 (gnus-summary-position-point))))
6401
6402(defun gnus-summary-limit-to-author (from)
6403 "Limit the summary buffer to articles that have authors that match a regexp."
6404 (interactive "sLimit to author (regexp): ")
6405 (gnus-summary-limit-to-subject from "from"))
6406
6407(defun gnus-summary-limit-to-age (age &optional younger-p)
6408 "Limit the summary buffer to articles that are older than (or equal) AGE days.
6409If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
6410articles that are younger than AGE days."
16409b0b
GM		 6411 (interactive
6412 (let ((younger current-prefix-arg)
6413 (days-got nil)
6414 days)
6415 (while (not days-got)
6416 (setq days (if younger
6417 (read-string "Limit to articles within (in days): ")
6418 (read-string "Limit to articles old than (in days): ")))
6419 (when (> (length days) 0)
6420 (setq days (read days)))
6421 (if (numberp days)
6422 (setq days-got t)
6423 (message "Please enter a number.")
6424 (sleep-for 1)))
6425 (list days younger)))
eec82323
LMI		 6426 (prog1
6427 (let ((data gnus-newsgroup-data)
16409b0b 6428 (cutoff (days-to-time age))
eec82323
LMI		 6429 articles d date is-younger)
6430 (while (setq d (pop data))
6431 (when (and (vectorp (gnus-data-header d))
6432 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM		 6433 (setq is-younger (time-less-p
6434 (time-since (condition-case ()
6435 (date-to-time date)
6436 (error '(0 0))))
eec82323 6437 cutoff))
6748645f
LMI		 6438 (when (if younger-p
6439 is-younger
6440 (not is-younger))
eec82323
LMI		 6441 (push (gnus-data-number d) articles))))
6442 (gnus-summary-limit (nreverse articles)))
6443 (gnus-summary-position-point)))
6444
16409b0b
GM		 6445(defun gnus-summary-limit-to-extra (header regexp)
6446 "Limit the summary buffer to articles that match an 'extra' header."
6447 (interactive
6448 (let ((header
6449 (intern
6450 (gnus-completing-read
6451 (symbol-name (car gnus-extra-headers))
6452 "Limit extra header:"
6453 (mapcar (lambda (x)
6454 (cons (symbol-name x) x))
6455 gnus-extra-headers)
6456 nil
6457 t))))
6458 (list header
6459 (read-string (format "Limit to header %s (regexp): " header)))))
6460 (when (not (equal "" regexp))
6461 (prog1
6462 (let ((articles (gnus-summary-find-matching
6463 (cons 'extra header) regexp 'all)))
6464 (unless articles
6465 (error "Found no matches for \"%s\"" regexp))
6466 (gnus-summary-limit articles))
6467 (gnus-summary-position-point))))
6468
eec82323
LMI		 6469(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
6470(make-obsolete
6471 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
6472
6473(defun gnus-summary-limit-to-unread (&optional all)
6474 "Limit the summary buffer to articles that are not marked as read.
6475If ALL is non-nil, limit strictly to unread articles."
6476 (interactive "P")
6477 (if all
6478 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
6479 (gnus-summary-limit-to-marks
6480 ;; Concat all the marks that say that an article is read and have
6481 ;; those removed.
6482 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
6483 gnus-killed-mark gnus-kill-file-mark
6484 gnus-low-score-mark gnus-expirable-mark
6485 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
6486 gnus-duplicate-mark gnus-souped-mark)
6487 'reverse)))
6488
6489(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
6490(make-obsolete 'gnus-summary-delete-marked-with
6491 'gnus-summary-limit-exlude-marks)
6492
6493(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
6494 "Exclude articles that are marked with MARKS (e.g. \"DK\").
6495If REVERSE, limit the summary buffer to articles that are marked
6496with MARKS. MARKS can either be a string of marks or a list of marks.
6497Returns how many articles were removed."
6498 (interactive "sMarks: ")
6499 (gnus-summary-limit-to-marks marks t))
6500
6501(defun gnus-summary-limit-to-marks (marks &optional reverse)
6502 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
6503If REVERSE (the prefix), limit the summary buffer to articles that are
6504not marked with MARKS. MARKS can either be a string of marks or a
6505list of marks.
6506Returns how many articles were removed."
6748645f 6507 (interactive "sMarks: \nP")
eec82323
LMI		 6508 (prog1
6509 (let ((data gnus-newsgroup-data)
6510 (marks (if (listp marks) marks
6511 (append marks nil))) ; Transform to list.
6512 articles)
6513 (while data
6514 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
6515 (memq (gnus-data-mark (car data)) marks))
6516 (push (gnus-data-number (car data)) articles))
6517 (setq data (cdr data)))
6518 (gnus-summary-limit articles))
6519 (gnus-summary-position-point)))
6520
6521(defun gnus-summary-limit-to-score (&optional score)
6522 "Limit to articles with score at or above SCORE."
6523 (interactive "P")
eec82323
LMI		 6524 (setq score (if score
6525 (prefix-numeric-value score)
6526 (or gnus-summary-default-score 0)))
6527 (let ((data gnus-newsgroup-data)
6528 articles)
6529 (while data
6530 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
6531 score)
6532 (push (gnus-data-number (car data)) articles))
6533 (setq data (cdr data)))
6534 (prog1
6535 (gnus-summary-limit articles)
6536 (gnus-summary-position-point))))
6537
6748645f
LMI		 6538(defun gnus-summary-limit-include-thread (id)
6539 "Display all the hidden articles that in the current thread."
6540 (interactive (list (mail-header-id (gnus-summary-article-header))))
6541 (let ((articles (gnus-articles-in-thread
6542 (gnus-id-to-thread (gnus-root-id id)))))
6543 (prog1
6544 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
6545 (gnus-summary-position-point))))
6546
eec82323 6547(defun gnus-summary-limit-include-dormant ()
6748645f
LMI		 6548 "Display all the hidden articles that are marked as dormant.
6549Note that this command only works on a subset of the articles currently
6550fetched for this group."
eec82323 6551 (interactive)
eec82323
LMI		 6552 (unless gnus-newsgroup-dormant
6553 (error "There are no dormant articles in this group"))
6554 (prog1
6555 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
6556 (gnus-summary-position-point)))
6557
6558(defun gnus-summary-limit-exclude-dormant ()
6559 "Hide all dormant articles."
6560 (interactive)
eec82323
LMI		 6561 (prog1
6562 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
6563 (gnus-summary-position-point)))
6564
6565(defun gnus-summary-limit-exclude-childless-dormant ()
6566 "Hide all dormant articles that have no children."
6567 (interactive)
eec82323
LMI		 6568 (let ((data (gnus-data-list t))
6569 articles d children)
6570 ;; Find all articles that are either not dormant or have
6571 ;; children.
6572 (while (setq d (pop data))
6573 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
6574 (and (setq children
6575 (gnus-article-children (gnus-data-number d)))
6576 (let (found)
6577 (while children
6578 (when (memq (car children) articles)
6579 (setq children nil
6580 found t))
6581 (pop children))
6582 found)))
6583 (push (gnus-data-number d) articles)))
6584 ;; Do the limiting.
6585 (prog1
6586 (gnus-summary-limit articles)
6587 (gnus-summary-position-point))))
6588
6589(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
6590 "Mark all unread excluded articles as read.
6591If ALL, mark even excluded ticked and dormants as read."
6592 (interactive "P")
6593 (let ((articles (gnus-sorted-complement
6594 (sort
6595 (mapcar (lambda (h) (mail-header-number h))
6596 gnus-newsgroup-headers)
6597 '<)
6598 (sort gnus-newsgroup-limit '<)))
6599 article)
6748645f
LMI		 6600 (setq gnus-newsgroup-unreads
6601 (gnus-intersection gnus-newsgroup-unreads gnus-newsgroup-limit))
eec82323
LMI		 6602 (if all
6603 (setq gnus-newsgroup-dormant nil
6604 gnus-newsgroup-marked nil
6605 gnus-newsgroup-reads
6606 (nconc
6607 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
6608 gnus-newsgroup-reads))
6609 (while (setq article (pop articles))
6610 (unless (or (memq article gnus-newsgroup-dormant)
6611 (memq article gnus-newsgroup-marked))
6612 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
6613
6614(defun gnus-summary-limit (articles &optional pop)
6615 (if pop
6616 ;; We pop the previous limit off the stack and use that.
6617 (setq articles (car gnus-newsgroup-limits)
6618 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
6619 ;; We use the new limit, so we push the old limit on the stack.
6620 (push gnus-newsgroup-limit gnus-newsgroup-limits))
6621 ;; Set the limit.
6622 (setq gnus-newsgroup-limit articles)
6623 (let ((total (length gnus-newsgroup-data))
6624 (data (gnus-data-find-list (gnus-summary-article-number)))
6625 (gnus-summary-mark-below nil) ; Inhibit this.
6626 found)
6627 ;; This will do all the work of generating the new summary buffer
6628 ;; according to the new limit.
6629 (gnus-summary-prepare)
6630 ;; Hide any threads, possibly.
6631 (and gnus-show-threads
6632 gnus-thread-hide-subtree
6633 (gnus-summary-hide-all-threads))
6634 ;; Try to return to the article you were at, or one in the
6635 ;; neighborhood.
6636 (when data
6637 ;; We try to find some article after the current one.
6638 (while data
6639 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
6640 (setq data nil
6641 found t))
6642 (setq data (cdr data))))
6643 (unless found
6644 ;; If there is no data, that means that we were after the last
6645 ;; article. The same goes when we can't find any articles
6646 ;; after the current one.
6647 (goto-char (point-max))
6648 (gnus-summary-find-prev))
6748645f 6649 (gnus-set-mode-line 'summary)
eec82323
LMI		 6650 ;; We return how many articles were removed from the summary
6651 ;; buffer as a result of the new limit.
6652 (- total (length gnus-newsgroup-data))))
6653
6654(defsubst gnus-invisible-cut-children (threads)
6655 (let ((num 0))
6656 (while threads
6657 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
6658 (incf num))
6659 (pop threads))
6660 (< num 2)))
6661
6662(defsubst gnus-cut-thread (thread)
6663 "Go forwards in the thread until we find an article that we want to display."
6664 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 6665 (eq gnus-fetch-old-headers 'invisible)
16409b0b 6666 (numberp gnus-fetch-old-headers)
eec82323
LMI		 6667 (eq gnus-build-sparse-threads 'some)
6668 (eq gnus-build-sparse-threads 'more))
6669 ;; Deal with old-fetched headers and sparse threads.
6670 (while (and
6671 thread
6672 (or
6673 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
6674 (gnus-summary-article-ancient-p
6675 (mail-header-number (car thread))))
6748645f
LMI		 6676 (if (or (<= (length (cdr thread)) 1)
6677 (eq gnus-fetch-old-headers 'invisible))
6678 (setq gnus-newsgroup-limit
6679 (delq (mail-header-number (car thread))
6680 gnus-newsgroup-limit)
6681 thread (cadr thread))
6682 (when (gnus-invisible-cut-children (cdr thread))
6683 (let ((th (cdr thread)))
6684 (while th
6685 (if (memq (mail-header-number (caar th))
a8151ef7 6686 gnus-newsgroup-limit)
6748645f
LMI		 6687 (setq thread (car th)
6688 th nil)
6689 (setq th (cdr th))))))))))
eec82323
LMI		 6690 thread)
6691
6692(defun gnus-cut-threads (threads)
6693 "Cut off all uninteresting articles from the beginning of threads."
6694 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 6695 (eq gnus-fetch-old-headers 'invisible)
16409b0b 6696 (numberp gnus-fetch-old-headers)
eec82323
LMI		 6697 (eq gnus-build-sparse-threads 'some)
6698 (eq gnus-build-sparse-threads 'more))
6699 (let ((th threads))
6700 (while th
6701 (setcar th (gnus-cut-thread (car th)))
6702 (setq th (cdr th)))))
6703 ;; Remove nixed out threads.
6704 (delq nil threads))
6705
6706(defun gnus-summary-initial-limit (&optional show-if-empty)
6707 "Figure out what the initial limit is supposed to be on group entry.
6708This entails weeding out unwanted dormants, low-scored articles,
6709fetch-old-headers verbiage, and so on."
6710 ;; Most groups have nothing to remove.
6711 (if (or gnus-inhibit-limiting
6712 (and (null gnus-newsgroup-dormant)
6713 (not (eq gnus-fetch-old-headers 'some))
16409b0b 6714 (not (numberp gnus-fetch-old-headers))
6748645f 6715 (not (eq gnus-fetch-old-headers 'invisible))
eec82323
LMI		 6716 (null gnus-summary-expunge-below)
6717 (not (eq gnus-build-sparse-threads 'some))
6718 (not (eq gnus-build-sparse-threads 'more))
6719 (null gnus-thread-expunge-below)
6720 (not gnus-use-nocem)))
6721 () ; Do nothing.
6722 (push gnus-newsgroup-limit gnus-newsgroup-limits)
6723 (setq gnus-newsgroup-limit nil)
6724 (mapatoms
6725 (lambda (node)
6726 (unless (car (symbol-value node))
6727 ;; These threads have no parents -- they are roots.
6728 (let ((nodes (cdr (symbol-value node)))
6729 thread)
6730 (while nodes
6731 (if (and gnus-thread-expunge-below
6732 (< (gnus-thread-total-score (car nodes))
6733 gnus-thread-expunge-below))
6734 (gnus-expunge-thread (pop nodes))
6735 (setq thread (pop nodes))
6736 (gnus-summary-limit-children thread))))))
6737 gnus-newsgroup-dependencies)
6738 ;; If this limitation resulted in an empty group, we might
6739 ;; pop the previous limit and use it instead.
6740 (when (and (not gnus-newsgroup-limit)
6741 show-if-empty)
6742 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
6743 gnus-newsgroup-limit))
6744
6745(defun gnus-summary-limit-children (thread)
6746 "Return 1 if this subthread is visible and 0 if it is not."
6747 ;; First we get the number of visible children to this thread. This
6748 ;; is done by recursing down the thread using this function, so this
6749 ;; will really go down to a leaf article first, before slowly
6750 ;; working its way up towards the root.
6751 (when thread
6752 (let ((children
6753 (if (cdr thread)
6754 (apply '+ (mapcar 'gnus-summary-limit-children
6755 (cdr thread)))
6756 0))
6757 (number (mail-header-number (car thread)))
6758 score)
6759 (if (and
6760 (not (memq number gnus-newsgroup-marked))
6761 (or
6762 ;; If this article is dormant and has absolutely no visible
6763 ;; children, then this article isn't visible.
6764 (and (memq number gnus-newsgroup-dormant)
6765 (zerop children))
6766 ;; If this is "fetch-old-headered" and there is no
6767 ;; visible children, then we don't want this article.
16409b0b
GM		 6768 (and (or (eq gnus-fetch-old-headers 'some)
6769 (numberp gnus-fetch-old-headers))
eec82323
LMI		 6770 (gnus-summary-article-ancient-p number)
6771 (zerop children))
6748645f
LMI		 6772 ;; If this is "fetch-old-headered" and `invisible', then
6773 ;; we don't want this article.
6774 (and (eq gnus-fetch-old-headers 'invisible)
6775 (gnus-summary-article-ancient-p number))
eec82323
LMI		 6776 ;; If this is a sparsely inserted article with no children,
6777 ;; we don't want it.
6778 (and (eq gnus-build-sparse-threads 'some)
6779 (gnus-summary-article-sparse-p number)
6780 (zerop children))
6781 ;; If we use expunging, and this article is really
6782 ;; low-scored, then we don't want this article.
6783 (when (and gnus-summary-expunge-below
6784 (< (setq score
6785 (or (cdr (assq number gnus-newsgroup-scored))
6786 gnus-summary-default-score))
6787 gnus-summary-expunge-below))
6788 ;; We increase the expunge-tally here, but that has
6789 ;; nothing to do with the limits, really.
6790 (incf gnus-newsgroup-expunged-tally)
6791 ;; We also mark as read here, if that's wanted.
6792 (when (and gnus-summary-mark-below
6793 (< score gnus-summary-mark-below))
6794 (setq gnus-newsgroup-unreads
6795 (delq number gnus-newsgroup-unreads))
6796 (if gnus-newsgroup-auto-expire
6797 (push number gnus-newsgroup-expirable)
6798 (push (cons number gnus-low-score-mark)
6799 gnus-newsgroup-reads)))
6800 t)
6801 ;; Check NoCeM things.
6802 (if (and gnus-use-nocem
6803 (gnus-nocem-unwanted-article-p
6804 (mail-header-id (car thread))))
6805 (progn
a8151ef7 6806 (setq gnus-newsgroup-unreads
eec82323
LMI		 6807 (delq number gnus-newsgroup-unreads))
6808 t))))
6809 ;; Nope, invisible article.
6810 0
6811 ;; Ok, this article is to be visible, so we add it to the limit
6812 ;; and return 1.
6813 (push number gnus-newsgroup-limit)
6814 1))))
6815
6816(defun gnus-expunge-thread (thread)
6817 "Mark all articles in THREAD as read."
6818 (let* ((number (mail-header-number (car thread))))
6819 (incf gnus-newsgroup-expunged-tally)
6820 ;; We also mark as read here, if that's wanted.
6821 (setq gnus-newsgroup-unreads
6822 (delq number gnus-newsgroup-unreads))
6823 (if gnus-newsgroup-auto-expire
6824 (push number gnus-newsgroup-expirable)
6825 (push (cons number gnus-low-score-mark)
6826 gnus-newsgroup-reads)))
6827 ;; Go recursively through all subthreads.
6828 (mapcar 'gnus-expunge-thread (cdr thread)))
6829
6830;; Summary article oriented commands
6831
6832(defun gnus-summary-refer-parent-article (n)
6833 "Refer parent article N times.
6834If N is negative, go to ancestor -N instead.
6835The difference between N and the number of articles fetched is returned."
6836 (interactive "p")
eec82323
LMI		 6837 (let ((skip 1)
6838 error header ref)
6839 (when (not (natnump n))
6840 (setq skip (abs n)
6841 n 1))
6842 (while (and (> n 0)
6843 (not error))
6844 (setq header (gnus-summary-article-header))
6845 (if (and (eq (mail-header-number header)
6846 (cdr gnus-article-current))
6847 (equal gnus-newsgroup-name
6848 (car gnus-article-current)))
6849 ;; If we try to find the parent of the currently
6850 ;; displayed article, then we take a look at the actual
6851 ;; References header, since this is slightly more
6852 ;; reliable than the References field we got from the
6853 ;; server.
6854 (save-excursion
6855 (set-buffer gnus-original-article-buffer)
6856 (nnheader-narrow-to-headers)
6857 (unless (setq ref (message-fetch-field "references"))
6858 (setq ref (message-fetch-field "in-reply-to")))
6859 (widen))
6860 (setq ref
6861 ;; It's not the current article, so we take a bet on
6862 ;; the value we got from the server.
6863 (mail-header-references header)))
6864 (if (and ref
6865 (not (equal ref "")))
6866 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
6867 (gnus-message 1 "Couldn't find parent"))
6868 (gnus-message 1 "No references in article %d"
6869 (gnus-summary-article-number))
6870 (setq error t))
6871 (decf n))
6872 (gnus-summary-position-point)
6873 n))
6874
6875(defun gnus-summary-refer-references ()
6876 "Fetch all articles mentioned in the References header.
6748645f 6877Return the number of articles fetched."
eec82323 6878 (interactive)
eec82323
LMI		 6879 (let ((ref (mail-header-references (gnus-summary-article-header)))
6880 (current (gnus-summary-article-number))
6881 (n 0))
6882 (if (or (not ref)
6883 (equal ref ""))
6884 (error "No References in the current article")
6885 ;; For each Message-ID in the References header...
6886 (while (string-match "<[^>]*>" ref)
6887 (incf n)
6888 ;; ... fetch that article.
6889 (gnus-summary-refer-article
6890 (prog1 (match-string 0 ref)
6891 (setq ref (substring ref (match-end 0))))))
6892 (gnus-summary-goto-subject current)
6893 (gnus-summary-position-point)
6894 n)))
6895
6748645f
LMI		 6896(defun gnus-summary-refer-thread (&optional limit)
6897 "Fetch all articles in the current thread.
6898If LIMIT (the numerical prefix), fetch that many old headers instead
6899of what's specified by the `gnus-refer-thread-limit' variable."
6900 (interactive "P")
6901 (let ((id (mail-header-id (gnus-summary-article-header)))
6902 (limit (if limit (prefix-numeric-value limit)
6903 gnus-refer-thread-limit)))
6904 ;; We want to fetch LIMIT *old* headers, but we also have to
6905 ;; re-fetch all the headers in the current buffer, because many of
6906 ;; them may be undisplayed. So we adjust LIMIT.
6907 (when (numberp limit)
6908 (incf limit (- gnus-newsgroup-end gnus-newsgroup-begin)))
6909 (unless (eq gnus-fetch-old-headers 'invisible)
6910 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
6911 ;; Retrieve the headers and read them in.
6912 (if (eq (gnus-retrieve-headers
6913 (list gnus-newsgroup-end) gnus-newsgroup-name limit)
6914 'nov)
6915 (gnus-build-all-threads)
6916 (error "Can't fetch thread from backends that don't support NOV"))
6917 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
6918 (gnus-summary-limit-include-thread id)))
6919
16409b0b
GM		 6920(defun gnus-summary-refer-article (message-id)
6921 "Fetch an article specified by MESSAGE-ID."
6922 (interactive "sMessage-ID: ")
eec82323
LMI		 6923 (when (and (stringp message-id)
6924 (not (zerop (length message-id))))
6925 ;; Construct the correct Message-ID if necessary.
6926 ;; Suggested by tale@pawl.rpi.edu.
6927 (unless (string-match "^<" message-id)
6928 (setq message-id (concat "<" message-id)))
6929 (unless (string-match ">$" message-id)
6930 (setq message-id (concat message-id ">")))
6931 (let* ((header (gnus-id-to-header message-id))
6932 (sparse (and header
6933 (gnus-summary-article-sparse-p
a8151ef7
LMI		 6934 (mail-header-number header))
6935 (memq (mail-header-number header)
16409b0b
GM		 6936 gnus-newsgroup-limit)))
6937 number)
6748645f
LMI		 6938 (cond
6939 ;; If the article is present in the buffer we just go to it.
6940 ((and header
6941 (or (not (gnus-summary-article-sparse-p
6942 (mail-header-number header)))
6943 sparse))
6944 (prog1
6945 (gnus-summary-goto-article
6946 (mail-header-number header) nil t)
6947 (when sparse
6948 (gnus-summary-update-article (mail-header-number header)))))
6949 (t
16409b0b
GM		 6950 ;; We fetch the article.
6951 (catch 'found
6952 (dolist (gnus-override-method (gnus-refer-article-methods))
6953 (gnus-check-server gnus-override-method)
6954 ;; Fetch the header, and display the article.
6955 (when (setq number (gnus-summary-insert-subject message-id))
eec82323 6956 (gnus-summary-select-article nil nil nil number)
16409b0b
GM		 6957 (throw 'found t)))
6958 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
6959
6960(defun gnus-refer-article-methods ()
6961 "Return a list of referrable methods."
6962 (cond
6963 ;; No method, so we default to current and native.
6964 ((null gnus-refer-article-method)
6965 (list gnus-current-select-method gnus-select-method))
6966 ;; Current.
6967 ((eq 'current gnus-refer-article-method)
6968 (list gnus-current-select-method))
6969 ;; List of select methods.
d4dfaa19
DL		 6970 ((not (and (symbolp (car gnus-refer-article-method))
6971 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM		 6972 (let (out)
6973 (dolist (method gnus-refer-article-method)
6974 (push (if (eq 'current method)
6975 gnus-current-select-method
6976 method)
6977 out))
6978 (nreverse out)))
6979 ;; One single select method.
6980 (t
6981 (list gnus-refer-article-method))))
6748645f
LMI		 6982
6983(defun gnus-summary-edit-parameters ()
6984 "Edit the group parameters of the current group."
6985 (interactive)
6986 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 6987
16409b0b
GM		 6988(defun gnus-summary-customize-parameters ()
6989 "Customize the group parameters of the current group."
6990 (interactive)
6991 (gnus-group-customize gnus-newsgroup-name))
6992
eec82323
LMI		 6993(defun gnus-summary-enter-digest-group (&optional force)
6994 "Enter an nndoc group based on the current article.
6995If FORCE, force a digest interpretation. If not, try
6996to guess what the document format is."
6997 (interactive "P")
eec82323
LMI		 6998 (let ((conf gnus-current-window-configuration))
6999 (save-excursion
7000 (gnus-summary-select-article))
7001 (setq gnus-current-window-configuration conf)
7002 (let* ((name (format "%s-%d"
7003 (gnus-group-prefixed-name
7004 gnus-newsgroup-name (list 'nndoc ""))
7005 (save-excursion
7006 (set-buffer gnus-summary-buffer)
7007 gnus-current-article)))
7008 (ogroup gnus-newsgroup-name)
7009 (params (append (gnus-info-params (gnus-get-info ogroup))
7010 (list (cons 'to-group ogroup))
7011 (list (cons 'save-article-group ogroup))))
7012 (case-fold-search t)
7013 (buf (current-buffer))
16409b0b 7014 dig to-address)
eec82323 7015 (save-excursion
16409b0b
GM		 7016 (set-buffer gnus-original-article-buffer)
7017 ;; Have the digest group inherit the main mail address of
7018 ;; the parent article.
7019 (when (setq to-address (or (message-fetch-field "reply-to")
7020 (message-fetch-field "from")))
d4dfaa19
DL		 7021 (setq params (append
7022 (list (cons 'to-address
7023 (funcall gnus-decode-encoded-word-function
7024 to-address))))))
eec82323
LMI		 7025 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
7026 (insert-buffer-substring gnus-original-article-buffer)
7027 ;; Remove lines that may lead nndoc to misinterpret the
7028 ;; document type.
7029 (narrow-to-region
7030 (goto-char (point-min))
7031 (or (search-forward "\n\n" nil t) (point)))
7032 (goto-char (point-min))
16409b0b 7033 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI		 7034 (widen))
7035 (unwind-protect
16409b0b
GM		 7036 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
7037 (gnus-newsgroup-ephemeral-ignored-charsets
7038 gnus-newsgroup-ignored-charsets))
7039 (gnus-group-read-ephemeral-group
7040 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
7041 (nndoc-article-type
7042 ,(if force 'mbox 'guess))) t))
7043 ;; Make all postings to this group go to the parent group.
eec82323
LMI		 7044 (nconc (gnus-info-params (gnus-get-info name))
7045 params)
7046 ;; Couldn't select this doc group.
7047 (switch-to-buffer buf)
7048 (gnus-set-global-variables)
7049 (gnus-configure-windows 'summary)
7050 (gnus-message 3 "Article couldn't be entered?"))
7051 (kill-buffer dig)))))
7052
7053(defun gnus-summary-read-document (n)
7054 "Open a new group based on the current article(s).
7055This will allow you to read digests and other similar
7056documents as newsgroups.
7057Obeys the standard process/prefix convention."
7058 (interactive "P")
7059 (let* ((articles (gnus-summary-work-articles n))
7060 (ogroup gnus-newsgroup-name)
7061 (params (append (gnus-info-params (gnus-get-info ogroup))
7062 (list (cons 'to-group ogroup))))
7063 article group egroup groups vgroup)
7064 (while (setq article (pop articles))
7065 (setq group (format "%s-%d" gnus-newsgroup-name article))
7066 (gnus-summary-remove-process-mark article)
7067 (when (gnus-summary-display-article article)
7068 (save-excursion
16409b0b 7069 (with-temp-buffer
eec82323
LMI		 7070 (insert-buffer-substring gnus-original-article-buffer)
7071 ;; Remove some headers that may lead nndoc to make
7072 ;; the wrong guess.
7073 (message-narrow-to-head)
7074 (goto-char (point-min))
7075 (delete-matching-lines "^\\(Path\\):\\|^From ")
7076 (widen)
7077 (if (setq egroup
7078 (gnus-group-read-ephemeral-group
7079 group `(nndoc ,group (nndoc-address ,(current-buffer))
7080 (nndoc-article-type guess))
7081 t nil t))
7082 (progn
7083 ;; Make all postings to this group go to the parent group.
7084 (nconc (gnus-info-params (gnus-get-info egroup))
7085 params)
7086 (push egroup groups))
7087 ;; Couldn't select this doc group.
7088 (gnus-error 3 "Article couldn't be entered"))))))
7089 ;; Now we have selected all the documents.
7090 (cond
7091 ((not groups)
7092 (error "None of the articles could be interpreted as documents"))
7093 ((gnus-group-read-ephemeral-group
7094 (setq vgroup (format
7095 "nnvirtual:%s-%s" gnus-newsgroup-name
7096 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
7097 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
7098 t
7099 (cons (current-buffer) 'summary)))
7100 (t
7101 (error "Couldn't select virtual nndoc group")))))
7102
7103(defun gnus-summary-isearch-article (&optional regexp-p)
7104 "Do incremental search forward on the current article.
7105If REGEXP-P (the prefix) is non-nil, do regexp isearch."
7106 (interactive "P")
eec82323
LMI		 7107 (gnus-summary-select-article)
7108 (gnus-configure-windows 'article)
7109 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI		 7110 (save-restriction
7111 (widen)
7112 (isearch-forward regexp-p))))
eec82323
LMI		 7113
7114(defun gnus-summary-search-article-forward (regexp &optional backward)
7115 "Search for an article containing REGEXP forward.
7116If BACKWARD, search backward instead."
7117 (interactive
7118 (list (read-string
7119 (format "Search article %s (regexp%s): "
7120 (if current-prefix-arg "backward" "forward")
7121 (if gnus-last-search-regexp
7122 (concat ", default " gnus-last-search-regexp)
7123 "")))
7124 current-prefix-arg))
eec82323
LMI		 7125 (if (string-equal regexp "")
7126 (setq regexp (or gnus-last-search-regexp ""))
7127 (setq gnus-last-search-regexp regexp))
7128 (if (gnus-summary-search-article regexp backward)
7129 (gnus-summary-show-thread)
7130 (error "Search failed: \"%s\"" regexp)))
7131
7132(defun gnus-summary-search-article-backward (regexp)
7133 "Search for an article containing REGEXP backward."
7134 (interactive
7135 (list (read-string
7136 (format "Search article backward (regexp%s): "
7137 (if gnus-last-search-regexp
7138 (concat ", default " gnus-last-search-regexp)
7139 "")))))
7140 (gnus-summary-search-article-forward regexp 'backward))
7141
7142(defun gnus-summary-search-article (regexp &optional backward)
7143 "Search for an article containing REGEXP.
7144Optional argument BACKWARD means do search for backward.
7145`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI		 7146 ;; We have to require this here to make sure that the following
7147 ;; dynamic binding isn't shadowed by autoloading.
7148 (require 'gnus-async)
16409b0b 7149 (require 'gnus-art)
eec82323 7150 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 7151 (gnus-article-prepare-hook nil)
eec82323
LMI		 7152 (gnus-mark-article-hook nil) ;Inhibit marking as read.
7153 (gnus-use-article-prefetch nil)
7154 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 7155 (gnus-use-trees nil) ;Inhibit updating tree buffer.
eec82323 7156 (sum (current-buffer))
16409b0b 7157 (gnus-display-mime-function nil)
eec82323
LMI		 7158 (found nil)
7159 point)
7160 (gnus-save-hidden-threads
7161 (gnus-summary-select-article)
7162 (set-buffer gnus-article-buffer)
16409b0b 7163 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI		 7164 (when backward
7165 (forward-line -1))
7166 (while (not found)
7167 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
7168 (if (if backward
7169 (re-search-backward regexp nil t)
7170 (re-search-forward regexp nil t))
7171 ;; We found the regexp.
7172 (progn
7173 (setq found 'found)
7174 (beginning-of-line)
7175 (set-window-start
7176 (get-buffer-window (current-buffer))
7177 (point))
7178 (forward-line 1)
16409b0b
GM		 7179 (set-window-point
7180 (get-buffer-window (current-buffer))
7181 (point))
eec82323
LMI		 7182 (set-buffer sum)
7183 (setq point (point)))
7184 ;; We didn't find it, so we go to the next article.
7185 (set-buffer sum)
7186 (setq found 'not)
7187 (while (eq found 'not)
7188 (if (not (if backward (gnus-summary-find-prev)
7189 (gnus-summary-find-next)))
7190 ;; No more articles.
7191 (setq found t)
7192 ;; Select the next article and adjust point.
7193 (unless (gnus-summary-article-sparse-p
7194 (gnus-summary-article-number))
7195 (setq found nil)
7196 (gnus-summary-select-article)
7197 (set-buffer gnus-article-buffer)
7198 (widen)
7199 (goto-char (if backward (point-max) (point-min))))))))
7200 (gnus-message 7 ""))
7201 ;; Return whether we found the regexp.
7202 (when (eq found 'found)
7203 (goto-char point)
7204 (gnus-summary-show-thread)
7205 (gnus-summary-goto-subject gnus-current-article)
7206 (gnus-summary-position-point)
7207 t)))
7208
7209(defun gnus-summary-find-matching (header regexp &optional backward unread
7210 not-case-fold)
7211 "Return a list of all articles that match REGEXP on HEADER.
7212The search stars on the current article and goes forwards unless
7213BACKWARD is non-nil. If BACKWARD is `all', do all articles.
7214If UNREAD is non-nil, only unread articles will
7215be taken into consideration. If NOT-CASE-FOLD, case won't be folded
7216in the comparisons."
7217 (let ((data (if (eq backward 'all) gnus-newsgroup-data
7218 (gnus-data-find-list
7219 (gnus-summary-article-number) (gnus-data-list backward))))
eec82323 7220 (case-fold-search (not not-case-fold))
16409b0b
GM		 7221 articles d func)
7222 (if (consp header)
7223 (if (eq (car header) 'extra)
7224 (setq func
7225 `(lambda (h)
7226 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
7227 "")))
7228 (error "%s is an invalid header" header))
7229 (unless (fboundp (intern (concat "mail-header-" header)))
7230 (error "%s is not a valid header" header))
7231 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
eec82323
LMI		 7232 (while data
7233 (setq d (car data))
7234 (and (or (not unread) ; We want all articles...
7235 (gnus-data-unread-p d)) ; Or just unreads.
7236 (vectorp (gnus-data-header d)) ; It's not a pseudo.
7237 (string-match regexp (funcall func (gnus-data-header d))) ; Match.
7238 (push (gnus-data-number d) articles)) ; Success!
7239 (setq data (cdr data)))
7240 (nreverse articles)))
7241
7242(defun gnus-summary-execute-command (header regexp command &optional backward)
7243 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
7244If HEADER is an empty string (or nil), the match is done on the entire
7245article. If BACKWARD (the prefix) is non-nil, search backward instead."
7246 (interactive
7247 (list (let ((completion-ignore-case t))
7248 (completing-read
7249 "Header name: "
7250 (mapcar (lambda (string) (list string))
7251 '("Number" "Subject" "From" "Lines" "Date"
7252 "Message-ID" "Xref" "References" "Body"))
7253 nil 'require-match))
7254 (read-string "Regexp: ")
7255 (read-key-sequence "Command: ")
7256 current-prefix-arg))
7257 (when (equal header "Body")
7258 (setq header ""))
eec82323
LMI		 7259 ;; Hidden thread subtrees must be searched as well.
7260 (gnus-summary-show-all-threads)
7261 ;; We don't want to change current point nor window configuration.
7262 (save-excursion
7263 (save-window-excursion
7264 (gnus-message 6 "Executing %s..." (key-description command))
7265 ;; We'd like to execute COMMAND interactively so as to give arguments.
7266 (gnus-execute header regexp
7267 `(call-interactively ',(key-binding command))
7268 backward)
7269 (gnus-message 6 "Executing %s...done" (key-description command)))))
7270
7271(defun gnus-summary-beginning-of-article ()
7272 "Scroll the article back to the beginning."
7273 (interactive)
eec82323
LMI		 7274 (gnus-summary-select-article)
7275 (gnus-configure-windows 'article)
7276 (gnus-eval-in-buffer-window gnus-article-buffer
7277 (widen)
7278 (goto-char (point-min))
7279 (when gnus-page-broken
7280 (gnus-narrow-to-page))))
7281
7282(defun gnus-summary-end-of-article ()
7283 "Scroll to the end of the article."
7284 (interactive)
eec82323
LMI		 7285 (gnus-summary-select-article)
7286 (gnus-configure-windows 'article)
7287 (gnus-eval-in-buffer-window gnus-article-buffer
7288 (widen)
7289 (goto-char (point-max))
7290 (recenter -3)
7291 (when gnus-page-broken
7292 (gnus-narrow-to-page))))
7293
6748645f
LMI		 7294(defun gnus-summary-print-article (&optional filename n)
7295 "Generate and print a PostScript image of the N next (mail) articles.
7296
7297If N is negative, print the N previous articles. If N is nil and articles
7298have been marked with the process mark, print these instead.
eec82323 7299
16409b0b 7300If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI		 7301printer. If FILENAME is a string, save the PostScript image in a file with
7302that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 7303to save in."
676a7cc9 7304 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI		 7305 (dolist (article (gnus-summary-work-articles n))
7306 (gnus-summary-select-article nil nil 'pseudo article)
7307 (gnus-eval-in-buffer-window gnus-article-buffer
7308 (let ((buffer (generate-new-buffer " *print*")))
7309 (unwind-protect
7310 (progn
7311 (copy-to-buffer buffer (point-min) (point-max))
7312 (set-buffer buffer)
7313 (gnus-article-delete-invisible-text)
7314 (let ((ps-left-header
7315 (list
7316 (concat "("
7317 (mail-header-subject gnus-current-headers) ")")
7318 (concat "("
7319 (mail-header-from gnus-current-headers) ")")))
7320 (ps-right-header
7321 (list
7322 "/pagenumberstring load"
7323 (concat "("
7324 (mail-header-date gnus-current-headers) ")"))))
7325 (gnus-run-hooks 'gnus-ps-print-hook)
7326 (save-excursion
676a7cc9
SZ		 7327 (ps-spool-buffer-with-faces))))
7328 (kill-buffer buffer))))
7329 (gnus-summary-remove-process-mark article))
7330 (ps-despool filename))
eec82323
LMI		 7331
7332(defun gnus-summary-show-article (&optional arg)
7333 "Force re-fetching of the current article.
16409b0b
GM		 7334If ARG (the prefix) is a number, show the article with the charset
7335defined in `gnus-summary-show-article-charset-alist', or the charset
7336inputed.
7337If ARG (the prefix) is non-nil and not a number, show the raw article
7338without any article massaging functions being run."
eec82323 7339 (interactive "P")
16409b0b
GM		 7340 (cond
7341 ((numberp arg)
7342 (let ((gnus-newsgroup-charset
7343 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
7344 (read-coding-system "Charset: ")))
7345 (gnus-newsgroup-ignored-charsets 'gnus-all))
7346 (gnus-summary-select-article nil 'force)))
7347 ((not arg)
7348 ;; Select the article the normal way.
7349 (gnus-summary-select-article nil 'force))
7350 (t
7351 ;; We have to require this here to make sure that the following
7352 ;; dynamic binding isn't shadowed by autoloading.
7353 (require 'gnus-async)
7354 (require 'gnus-art)
eec82323
LMI		 7355 ;; Bind the article treatment functions to nil.
7356 (let ((gnus-have-all-headers t)
eec82323 7357 gnus-article-prepare-hook
16409b0b
GM		 7358 gnus-article-decode-hook
7359 gnus-display-mime-function
7360 gnus-break-pages)
7361 ;; Destroy any MIME parts.
7362 (when (gnus-buffer-live-p gnus-article-buffer)
7363 (save-excursion
7364 (set-buffer gnus-article-buffer)
7365 (mm-destroy-parts gnus-article-mime-handles)
7366 ;; Set it to nil for safety reason.
7367 (setq gnus-article-mime-handle-alist nil)
7368 (setq gnus-article-mime-handles nil)))
7369 (gnus-summary-select-article nil 'force))))
eec82323
LMI		 7370 (gnus-summary-goto-subject gnus-current-article)
7371 (gnus-summary-position-point))
7372
7373(defun gnus-summary-verbose-headers (&optional arg)
7374 "Toggle permanent full header display.
7375If ARG is a positive number, turn header display on.
7376If ARG is a negative number, turn header display off."
7377 (interactive "P")
eec82323
LMI		 7378 (setq gnus-show-all-headers
7379 (cond ((or (not (numberp arg))
7380 (zerop arg))
7381 (not gnus-show-all-headers))
7382 ((natnump arg)
7383 t)))
7384 (gnus-summary-show-article))
7385
7386(defun gnus-summary-toggle-header (&optional arg)
7387 "Show the headers if they are hidden, or hide them if they are shown.
7388If ARG is a positive number, show the entire header.
7389If ARG is a negative number, hide the unwanted header lines."
7390 (interactive "P")
eec82323
LMI		 7391 (save-excursion
7392 (set-buffer gnus-article-buffer)
16409b0b
GM		 7393 (save-restriction
7394 (let* ((buffer-read-only nil)
7395 (inhibit-point-motion-hooks t)
7396 hidden e)
7397 (setq hidden
7398 (if (numberp arg)
7399 (>= arg 0)
7400 (save-restriction
7401 (article-narrow-to-head)
7402 (gnus-article-hidden-text-p 'headers))))
7403 (goto-char (point-min))
7404 (when (search-forward "\n\n" nil t)
7405 (delete-region (point-min) (1- (point))))
eec82323 7406 (goto-char (point-min))
16409b0b
GM		 7407 (save-excursion
7408 (set-buffer gnus-original-article-buffer)
7409 (goto-char (point-min))
7410 (setq e (1- (or (search-forward "\n\n" nil t) (point-max)))))
7411 (insert-buffer-substring gnus-original-article-buffer 1 e)
7412 (save-restriction
7413 (narrow-to-region (point-min) (point))
7414 (article-decode-encoded-words)
7415 (if hidden
7416 (let ((gnus-treat-hide-headers nil)
7417 (gnus-treat-hide-boring-headers nil))
7418 (setq gnus-article-wash-types
7419 (delq 'headers gnus-article-wash-types))
7420 (gnus-treat-article 'head))
7421 (gnus-treat-article 'head)))
7422 (gnus-set-mode-line 'article)))))
eec82323
LMI		 7423
7424(defun gnus-summary-show-all-headers ()
7425 "Make all header lines visible."
7426 (interactive)
eec82323
LMI		 7427 (gnus-article-show-all-headers))
7428
eec82323
LMI		 7429(defun gnus-summary-caesar-message (&optional arg)
7430 "Caesar rotate the current article by 13.
7431The numerical prefix specifies how many places to rotate each letter
7432forward."
7433 (interactive "P")
eec82323
LMI		 7434 (gnus-summary-select-article)
7435 (let ((mail-header-separator ""))
7436 (gnus-eval-in-buffer-window gnus-article-buffer
7437 (save-restriction
7438 (widen)
7439 (let ((start (window-start))
7440 buffer-read-only)
7441 (message-caesar-buffer-body arg)
7442 (set-window-start (get-buffer-window (current-buffer)) start))))))
7443
7444(defun gnus-summary-stop-page-breaking ()
7445 "Stop page breaking in the current article."
7446 (interactive)
eec82323
LMI		 7447 (gnus-summary-select-article)
7448 (gnus-eval-in-buffer-window gnus-article-buffer
7449 (widen)
7450 (when (gnus-visual-p 'page-marker)
7451 (let ((buffer-read-only nil))
7452 (gnus-remove-text-with-property 'gnus-prev)
6748645f
LMI		 7453 (gnus-remove-text-with-property 'gnus-next))
7454 (setq gnus-page-broken nil))))
eec82323
LMI		 7455
7456(defun gnus-summary-move-article (&optional n to-newsgroup
7457 select-method action)
7458 "Move the current article to a different newsgroup.
7459If N is a positive number, move the N next articles.
7460If N is a negative number, move the N previous articles.
7461If N is nil and any articles have been marked with the process mark,
7462move those articles instead.
7463If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
7464If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
7465re-spool using this method.
7466
7467For this function to work, both the current newsgroup and the
7468newsgroup that you want to move to have to support the `request-move'
16409b0b
GM		 7469and `request-accept' functions.
7470
7471ACTION can be either `move' (the default), `crosspost' or `copy'."
eec82323
LMI		 7472 (interactive "P")
7473 (unless action
7474 (setq action 'move))
eec82323
LMI		 7475 ;; Disable marking as read.
7476 (let (gnus-mark-article-hook)
7477 (save-window-excursion
7478 (gnus-summary-select-article)))
7479 ;; Check whether the source group supports the required functions.
7480 (cond ((and (eq action 'move)
7481 (not (gnus-check-backend-function
7482 'request-move-article gnus-newsgroup-name)))
7483 (error "The current group does not support article moving"))
7484 ((and (eq action 'crosspost)
7485 (not (gnus-check-backend-function
7486 'request-replace-article gnus-newsgroup-name)))
7487 (error "The current group does not support article editing")))
7488 (let ((articles (gnus-summary-work-articles n))
16409b0b
GM		 7489 (prefix (if (gnus-check-backend-function
7490 'request-move-article gnus-newsgroup-name)
7491 (gnus-group-real-prefix gnus-newsgroup-name)
7492 ""))
eec82323
LMI		 7493 (names '((move "Move" "Moving")
7494 (copy "Copy" "Copying")
7495 (crosspost "Crosspost" "Crossposting")))
7496 (copy-buf (save-excursion
7497 (nnheader-set-temp-buffer " *copy article*")))
7498 art-group to-method new-xref article to-groups)
7499 (unless (assq action names)
7500 (error "Unknown action %s" action))
7501 ;; Read the newsgroup name.
7502 (when (and (not to-newsgroup)
7503 (not select-method))
7504 (setq to-newsgroup
7505 (gnus-read-move-group-name
7506 (cadr (assq action names))
7507 (symbol-value (intern (format "gnus-current-%s-group" action)))
7508 articles prefix))
7509 (set (intern (format "gnus-current-%s-group" action)) to-newsgroup))
7510 (setq to-method (or select-method
16409b0b
GM		 7511 (gnus-server-to-method
7512 (gnus-group-method to-newsgroup))))
eec82323
LMI		 7513 ;; Check the method we are to move this article to...
7514 (unless (gnus-check-backend-function
7515 'request-accept-article (car to-method))
7516 (error "%s does not support article copying" (car to-method)))
7517 (unless (gnus-check-server to-method)
7518 (error "Can't open server %s" (car to-method)))
7519 (gnus-message 6 "%s to %s: %s..."
7520 (caddr (assq action names))
7521 (or (car select-method) to-newsgroup) articles)
7522 (while articles
7523 (setq article (pop articles))
7524 (setq
7525 art-group
7526 (cond
7527 ;; Move the article.
7528 ((eq action 'move)
a8151ef7
LMI		 7529 ;; Remove this article from future suppression.
7530 (gnus-dup-unsuppress-article article)
eec82323
LMI		 7531 (gnus-request-move-article
7532 article ; Article to move
7533 gnus-newsgroup-name ; From newsgroup
7534 (nth 1 (gnus-find-method-for-group
7535 gnus-newsgroup-name)) ; Server
7536 (list 'gnus-request-accept-article
7537 to-newsgroup (list 'quote select-method)
16409b0b 7538 (not articles) t) ; Accept form
eec82323
LMI		 7539 (not articles))) ; Only save nov last time
7540 ;; Copy the article.
7541 ((eq action 'copy)
7542 (save-excursion
7543 (set-buffer copy-buf)
6748645f
LMI		 7544 (when (gnus-request-article-this-buffer article gnus-newsgroup-name)
7545 (gnus-request-accept-article
16409b0b 7546 to-newsgroup select-method (not articles) t))))
eec82323
LMI		 7547 ;; Crosspost the article.
7548 ((eq action 'crosspost)
7549 (let ((xref (message-tokenize-header
7550 (mail-header-xref (gnus-summary-article-header article))
7551 " ")))
7552 (setq new-xref (concat (gnus-group-real-name gnus-newsgroup-name)
7553 ":" article))
7554 (unless xref
7555 (setq xref (list (system-name))))
7556 (setq new-xref
7557 (concat
7558 (mapconcat 'identity
7559 (delete "Xref:" (delete new-xref xref))
7560 " ")
7561 " " new-xref))
7562 (save-excursion
7563 (set-buffer copy-buf)
7564 ;; First put the article in the destination group.
7565 (gnus-request-article-this-buffer article gnus-newsgroup-name)
7566 (when (consp (setq art-group
7567 (gnus-request-accept-article
7568 to-newsgroup select-method (not articles))))
7569 (setq new-xref (concat new-xref " " (car art-group)
7570 ":" (cdr art-group)))
7571 ;; Now we have the new Xrefs header, so we insert
7572 ;; it and replace the new article.
7573 (nnheader-replace-header "Xref" new-xref)
7574 (gnus-request-replace-article
7575 (cdr art-group) to-newsgroup (current-buffer))
7576 art-group))))))
7577 (cond
7578 ((not art-group)
16409b0b
GM		 7579 (gnus-message 1 "Couldn't %s article %s: %s"
7580 (cadr (assq action names)) article
7581 (nnheader-get-report (car to-method))))
7582 ((eq art-group 'junk)
7583 (when (eq action 'move)
7584 (gnus-summary-mark-article article gnus-canceled-mark)
7585 (gnus-message 4 "Deleted article %s" article)))
eec82323 7586 (t
6748645f
LMI		 7587 (let* ((pto-group (gnus-group-prefixed-name
7588 (car art-group) to-method))
7589 (entry
7590 (gnus-gethash pto-group gnus-newsrc-hashtb))
eec82323 7591 (info (nth 2 entry))
16409b0b
GM		 7592 (to-group (gnus-info-group info))
7593 to-marks)
eec82323
LMI		 7594 ;; Update the group that has been moved to.
7595 (when (and info
7596 (memq action '(move copy)))
7597 (unless (member to-group to-groups)
7598 (push to-group to-groups))
7599
7600 (unless (memq article gnus-newsgroup-unreads)
16409b0b 7601 (push 'read to-marks)
eec82323
LMI		 7602 (gnus-info-set-read
7603 info (gnus-add-to-range (gnus-info-read info)
7604 (list (cdr art-group)))))
7605
16409b0b 7606 ;; See whether the article is to be put in the cache.
eec82323
LMI		 7607 (let ((marks gnus-article-mark-lists)
7608 (to-article (cdr art-group)))
7609
16409b0b
GM		 7610 ;; Enter the article into the cache in the new group,
7611 ;; if that is required.
eec82323
LMI		 7612 (when gnus-use-cache
7613 (gnus-cache-possibly-enter-article
7614 to-group to-article
eec82323
LMI		 7615 (memq article gnus-newsgroup-marked)
7616 (memq article gnus-newsgroup-dormant)
7617 (memq article gnus-newsgroup-unreads)))
7618
16409b0b
GM		 7619 (when gnus-preserve-marks
7620 ;; Copy any marks over to the new group.
7621 (when (and (equal to-group gnus-newsgroup-name)
7622 (not (memq article gnus-newsgroup-unreads)))
7623 ;; Mark this article as read in this group.
7624 (push (cons to-article gnus-read-mark) gnus-newsgroup-reads)
7625 (setcdr (gnus-active to-group) to-article)
7626 (setcdr gnus-newsgroup-active to-article))
7627
7628 (while marks
7629 (when (memq article (symbol-value
7630 (intern (format "gnus-newsgroup-%s"
7631 (caar marks)))))
7632 (push (cdar marks) to-marks)
7633 ;; If the other group is the same as this group,
7634 ;; then we have to add the mark to the list.
7635 (when (equal to-group gnus-newsgroup-name)
7636 (set (intern (format "gnus-newsgroup-%s" (caar marks)))
7637 (cons to-article
7638 (symbol-value
7639 (intern (format "gnus-newsgroup-%s"
7640 (caar marks)))))))
7641 ;; Copy the marks to other group.
7642 (gnus-add-marked-articles
7643 to-group (cdar marks) (list to-article) info))
7644 (setq marks (cdr marks)))
7645
7646 (gnus-request-set-mark to-group (list (list (list to-article)
7647 'set
7648 to-marks))))
eec82323
LMI		 7649
7650 (gnus-dribble-enter
7651 (concat "(gnus-group-set-info '"
7652 (gnus-prin1-to-string (gnus-get-info to-group))
7653 ")"))))
7654
7655 ;; Update the Xref header in this article to point to
7656 ;; the new crossposted article we have just created.
7657 (when (eq action 'crosspost)
7658 (save-excursion
7659 (set-buffer copy-buf)
7660 (gnus-request-article-this-buffer article gnus-newsgroup-name)
7661 (nnheader-replace-header "Xref" new-xref)
7662 (gnus-request-replace-article
7663 article gnus-newsgroup-name (current-buffer)))))
7664
6748645f
LMI		 7665 ;;;!!!Why is this necessary?
7666 (set-buffer gnus-summary-buffer)
7667
eec82323
LMI		 7668 (gnus-summary-goto-subject article)
7669 (when (eq action 'move)
7670 (gnus-summary-mark-article article gnus-canceled-mark))))
7671 (gnus-summary-remove-process-mark article))
7672 ;; Re-activate all groups that have been moved to.
7673 (while to-groups
7674 (save-excursion
7675 (set-buffer gnus-group-buffer)
7676 (when (gnus-group-goto-group (car to-groups) t)
a8151ef7 7677 (gnus-group-get-new-news-this-group 1 t))
eec82323
LMI		 7678 (pop to-groups)))
7679
7680 (gnus-kill-buffer copy-buf)
7681 (gnus-summary-position-point)
7682 (gnus-set-mode-line 'summary)))
7683
7684(defun gnus-summary-copy-article (&optional n to-newsgroup select-method)
7685 "Move the current article to a different newsgroup.
7686If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
7687If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
7688re-spool using this method."
7689 (interactive "P")
7690 (gnus-summary-move-article n to-newsgroup select-method 'copy))
7691
7692(defun gnus-summary-crosspost-article (&optional n)
7693 "Crosspost the current article to some other group."
7694 (interactive "P")
7695 (gnus-summary-move-article n nil nil 'crosspost))
7696
7697(defcustom gnus-summary-respool-default-method nil
7698 "Default method for respooling an article.
7699If nil, use to the current newsgroup method."
04ad70ac
KH		 7700 :type '(choice (gnus-select-method :value (nnml ""))
7701 (const nil))
eec82323
LMI		 7702 :group 'gnus-summary-mail)
7703
7704(defun gnus-summary-respool-article (&optional n method)
7705 "Respool the current article.
7706The article will be squeezed through the mail spooling process again,
7707which means that it will be put in some mail newsgroup or other
7708depending on `nnmail-split-methods'.
7709If N is a positive number, respool the N next articles.
7710If N is a negative number, respool the N previous articles.
7711If N is nil and any articles have been marked with the process mark,
7712respool those articles instead.
7713
7714Respooling can be done both from mail groups and \"real\" newsgroups.
7715In the former case, the articles in question will be moved from the
7716current group into whatever groups they are destined to. In the
7717latter case, they will be copied into the relevant groups."
7718 (interactive
7719 (list current-prefix-arg
7720 (let* ((methods (gnus-methods-using 'respool))
7721 (methname
7722 (symbol-name (or gnus-summary-respool-default-method
7723 (car (gnus-find-method-for-group
7724 gnus-newsgroup-name)))))
7725 (method
7726 (gnus-completing-read
7727 methname "What backend do you want to use when respooling?"
7728 methods nil t nil 'gnus-mail-method-history))
7729 ms)
7730 (cond
7731 ((zerop (length (setq ms (gnus-servers-using-backend
7732 (intern method)))))
7733 (list (intern method) ""))
7734 ((= 1 (length ms))
7735 (car ms))
7736 (t
7737 (let ((ms-alist (mapcar (lambda (m) (cons (cadr m) m)) ms)))
7738 (cdr (assoc (completing-read "Server name: " ms-alist nil t)
7739 ms-alist))))))))
eec82323
LMI		 7740 (unless method
7741 (error "No method given for respooling"))
7742 (if (assoc (symbol-name
7743 (car (gnus-find-method-for-group gnus-newsgroup-name)))
7744 (gnus-methods-using 'respool))
7745 (gnus-summary-move-article n nil method)
7746 (gnus-summary-copy-article n nil method)))
7747
7748(defun gnus-summary-import-article (file)
6748645f 7749 "Import an arbitrary file into a mail newsgroup."
eec82323 7750 (interactive "fImport file: ")
eec82323
LMI		 7751 (let ((group gnus-newsgroup-name)
7752 (now (current-time))
7753 atts lines)
7754 (unless (gnus-check-backend-function 'request-accept-article group)
7755 (error "%s does not support article importing" group))
7756 (or (file-readable-p file)
7757 (not (file-regular-p file))
7758 (error "Can't read %s" file))
7759 (save-excursion
6748645f 7760 (set-buffer (gnus-get-buffer-create " *import file*"))
eec82323 7761 (erase-buffer)
16409b0b 7762 (nnheader-insert-file-contents file)
eec82323
LMI		 7763 (goto-char (point-min))
7764 (unless (nnheader-article-p)
7765 ;; This doesn't look like an article, so we fudge some headers.
7766 (setq atts (file-attributes file)
7767 lines (count-lines (point-min) (point-max)))
7768 (insert "From: " (read-string "From: ") "\n"
7769 "Subject: " (read-string "Subject: ") "\n"
16409b0b 7770 "Date: " (message-make-date (nth 5 atts))
eec82323
LMI		 7771 "\n"
7772 "Message-ID: " (message-make-message-id) "\n"
7773 "Lines: " (int-to-string lines) "\n"
7774 "Chars: " (int-to-string (nth 7 atts)) "\n\n"))
7775 (gnus-request-accept-article group nil t)
7776 (kill-buffer (current-buffer)))))
7777
7778(defun gnus-summary-article-posted-p ()
16409b0b 7779 "Say whether the current (mail) article is available from news as well.
eec82323
LMI		 7780This will be the case if the article has both been mailed and posted."
7781 (interactive)
7782 (let ((id (mail-header-references (gnus-summary-article-header)))
16409b0b 7783 (gnus-override-method (car (gnus-refer-article-methods))))
eec82323
LMI		 7784 (if (gnus-request-head id "")
7785 (gnus-message 2 "The current message was found on %s"
7786 gnus-override-method)
7787 (gnus-message 2 "The current message couldn't be found on %s"
7788 gnus-override-method)
7789 nil)))
7790
7791(defun gnus-summary-expire-articles (&optional now)
7792 "Expire all articles that are marked as expirable in the current group."
7793 (interactive)
eec82323
LMI		 7794 (when (gnus-check-backend-function
7795 'request-expire-articles gnus-newsgroup-name)
7796 ;; This backend supports expiry.
7797 (let* ((total (gnus-group-total-expirable-p gnus-newsgroup-name))
7798 (expirable (if total
7799 (progn
7800 ;; We need to update the info for
7801 ;; this group for `gnus-list-of-read-articles'
7802 ;; to give us the right answer.
6748645f 7803 (gnus-run-hooks 'gnus-exit-group-hook)
eec82323
LMI		 7804 (gnus-summary-update-info)
7805 (gnus-list-of-read-articles gnus-newsgroup-name))
7806 (setq gnus-newsgroup-expirable
7807 (sort gnus-newsgroup-expirable '<))))
7808 (expiry-wait (if now 'immediate
7809 (gnus-group-find-parameter
7810 gnus-newsgroup-name 'expiry-wait)))
16409b0b
GM		 7811 (nnmail-expiry-target
7812 (or (gnus-group-find-parameter gnus-newsgroup-name 'expiry-target)
7813 nnmail-expiry-target))
eec82323
LMI		 7814 es)
7815 (when expirable
7816 ;; There are expirable articles in this group, so we run them
7817 ;; through the expiry process.
7818 (gnus-message 6 "Expiring articles...")
16409b0b
GM		 7819 (unless (gnus-check-group gnus-newsgroup-name)
7820 (error "Can't open server for %s" gnus-newsgroup-name))
eec82323 7821 ;; The list of articles that weren't expired is returned.
6748645f
LMI		 7822 (save-excursion
7823 (if expiry-wait
7824 (let ((nnmail-expiry-wait-function nil)
7825 (nnmail-expiry-wait expiry-wait))
7826 (setq es (gnus-request-expire-articles
7827 expirable gnus-newsgroup-name)))
7828 (setq es (gnus-request-expire-articles
7829 expirable gnus-newsgroup-name))))
eec82323
LMI		 7830 (unless total
7831 (setq gnus-newsgroup-expirable es))
7832 ;; We go through the old list of expirable, and mark all
7833 ;; really expired articles as nonexistent.
7834 (unless (eq es expirable) ;If nothing was expired, we don't mark.
7835 (let ((gnus-use-cache nil))
7836 (while expirable
7837 (unless (memq (car expirable) es)
7838 (when (gnus-data-find (car expirable))
7839 (gnus-summary-mark-article
7840 (car expirable) gnus-canceled-mark)))
7841 (setq expirable (cdr expirable)))))
7842 (gnus-message 6 "Expiring articles...done")))))
7843
7844(defun gnus-summary-expire-articles-now ()
7845 "Expunge all expirable articles in the current group.
7846This means that *all* articles that are marked as expirable will be
7847deleted forever, right now."
7848 (interactive)
eec82323
LMI		 7849 (or gnus-expert-user
7850 (gnus-yes-or-no-p
7851 "Are you really, really, really sure you want to delete all these messages? ")
7852 (error "Phew!"))
7853 (gnus-summary-expire-articles t))
7854
7855;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
7856(defun gnus-summary-delete-article (&optional n)
7857 "Delete the N next (mail) articles.
7858This command actually deletes articles. This is not a marking
7859command. The article will disappear forever from your life, never to
7860return.
7861If N is negative, delete backwards.
7862If N is nil and articles have been marked with the process mark,
7863delete these instead."
7864 (interactive "P")
eec82323
LMI		 7865 (unless (gnus-check-backend-function 'request-expire-articles
7866 gnus-newsgroup-name)
a8151ef7 7867 (error "The current newsgroup does not support article deletion"))
16409b0b
GM		 7868 (unless (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
7869 (error "Couldn't open server"))
eec82323 7870 ;; Compute the list of articles to delete.
6748645f 7871 (let ((articles (sort (copy-sequence (gnus-summary-work-articles n)) '<))
eec82323
LMI		 7872 not-deleted)
7873 (if (and gnus-novice-user
7874 (not (gnus-yes-or-no-p
7875 (format "Do you really want to delete %s forever? "
7876 (if (> (length articles) 1)
7877 (format "these %s articles" (length articles))
7878 "this article")))))
7879 ()
7880 ;; Delete the articles.
7881 (setq not-deleted (gnus-request-expire-articles
7882 articles gnus-newsgroup-name 'force))
7883 (while articles
7884 (gnus-summary-remove-process-mark (car articles))
7885 ;; The backend might not have been able to delete the article
7886 ;; after all.
7887 (unless (memq (car articles) not-deleted)
7888 (gnus-summary-mark-article (car articles) gnus-canceled-mark))
7889 (setq articles (cdr articles)))
7890 (when not-deleted
7891 (gnus-message 4 "Couldn't delete articles %s" not-deleted)))
7892 (gnus-summary-position-point)
7893 (gnus-set-mode-line 'summary)
7894 not-deleted))
7895
16409b0b 7896(defun gnus-summary-edit-article (&optional arg)
eec82323
LMI		 7897 "Edit the current article.
7898This will have permanent effect only in mail groups.
16409b0b
GM		 7899If ARG is nil, edit the decoded articles.
7900If ARG is 1, edit the raw articles.
7901If ARG is 2, edit the raw articles even in read-only groups.
7902Otherwise, allow editing of articles even in read-only
eec82323
LMI		 7903groups."
7904 (interactive "P")
16409b0b
GM		 7905 (let (force raw)
7906 (cond
7907 ((null arg))
7908 ((eq arg 1) (setq raw t))
7909 ((eq arg 2) (setq raw t
7910 force t))
7911 (t (setq force t)))
7912 (if (and raw (not force) (equal gnus-newsgroup-name "nndraft:drafts"))
7913 (error "Can't edit the raw article in group nndraft:drafts."))
7914 (save-excursion
7915 (set-buffer gnus-summary-buffer)
7916 (let ((mail-parse-charset gnus-newsgroup-charset)
7917 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets))
7918 (gnus-set-global-variables)
7919 (when (and (not force)
7920 (gnus-group-read-only-p))
7921 (error "The current newsgroup does not support article editing"))
7922 (gnus-summary-show-article t)
7923 (when (and (not raw) (gnus-buffer-live-p gnus-article-buffer))
7924 (with-current-buffer gnus-article-buffer
d4dfaa19 7925 (mm-enable-multibyte-mule4)))
16409b0b
GM		 7926 (if (equal gnus-newsgroup-name "nndraft:drafts")
7927 (setq raw t))
7928 (gnus-article-edit-article
7929 (if raw 'ignore
7930 #'(lambda ()
7931 (let ((mbl mml-buffer-list))
7932 (setq mml-buffer-list nil)
7933 (mime-to-mml)
7934 (make-local-hook 'kill-buffer-hook)
7935 (let ((mml-buffer-list mml-buffer-list))
7936 (setq mml-buffer-list mbl)
7937 (make-local-variable 'mml-buffer-list))
7938 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))))
7939 `(lambda (no-highlight)
7940 (let ((mail-parse-charset ',gnus-newsgroup-charset)
7941 (mail-parse-ignored-charsets
7942 ',gnus-newsgroup-ignored-charsets))
7943 ,(if (not raw) '(progn
7944 (mml-to-mime)
7945 (mml-destroy-buffers)
7946 (remove-hook 'kill-buffer-hook
7947 'mml-destroy-buffers t)
7948 (kill-local-variable 'mml-buffer-list)))
7949 (gnus-summary-edit-article-done
7950 ,(or (mail-header-references gnus-current-headers) "")
7951 ,(gnus-group-read-only-p)
7952 ,gnus-summary-buffer no-highlight))))))))
eec82323
LMI		 7953
7954(defalias 'gnus-summary-edit-article-postpone 'gnus-article-edit-exit)
7955
6748645f
LMI		 7956(defun gnus-summary-edit-article-done (&optional references read-only buffer
7957 no-highlight)
eec82323
LMI		 7958 "Make edits to the current article permanent."
7959 (interactive)
7960 ;; Replace the article.
6748645f 7961 (let ((buf (current-buffer)))
16409b0b
GM		 7962 (with-temp-buffer
7963 (insert-buffer-substring buf)
6748645f
LMI		 7964 (if (and (not read-only)
7965 (not (gnus-request-replace-article
7966 (cdr gnus-article-current) (car gnus-article-current)
16409b0b 7967 (current-buffer) t)))
6748645f
LMI		 7968 (error "Couldn't replace article")
7969 ;; Update the summary buffer.
7970 (if (and references
7971 (equal (message-tokenize-header references " ")
7972 (message-tokenize-header
7973 (or (message-fetch-field "references") "") " ")))
7974 ;; We only have to update this line.
7975 (save-excursion
7976 (save-restriction
7977 (message-narrow-to-head)
7978 (let ((head (buffer-string))
7979 header)
16409b0b 7980 (with-temp-buffer
6748645f
LMI		 7981 (insert (format "211 %d Article retrieved.\n"
7982 (cdr gnus-article-current)))
7983 (insert head)
7984 (insert ".\n")
7985 (let ((nntp-server-buffer (current-buffer)))
7986 (setq header (car (gnus-get-newsgroup-headers
7987 (save-excursion
7988 (set-buffer gnus-summary-buffer)
7989 gnus-newsgroup-dependencies)
7990 t))))
7991 (save-excursion
7992 (set-buffer gnus-summary-buffer)
7993 (gnus-data-set-header
7994 (gnus-data-find (cdr gnus-article-current))
7995 header)
7996 (gnus-summary-update-article-line
7997 (cdr gnus-article-current) header))))))
7998 ;; Update threads.
7999 (set-buffer (or buffer gnus-summary-buffer))
8000 (gnus-summary-update-article (cdr gnus-article-current)))
8001 ;; Prettify the article buffer again.
8002 (unless no-highlight
8003 (save-excursion
8004 (set-buffer gnus-article-buffer)
16409b0b
GM		 8005 ;;;!!! Fix this -- article should be rehighlighted.
8006 ;;;(gnus-run-hooks 'gnus-article-display-hook)
6748645f
LMI		 8007 (set-buffer gnus-original-article-buffer)
8008 (gnus-request-article
8009 (cdr gnus-article-current)
8010 (car gnus-article-current) (current-buffer))))
8011 ;; Prettify the summary buffer line.
8012 (when (gnus-visual-p 'summary-highlight 'highlight)
8013 (gnus-run-hooks 'gnus-visual-mark-article-hook))))))
eec82323
LMI		 8014
8015(defun gnus-summary-edit-wash (key)
6748645f 8016 "Perform editing command KEY in the article buffer."
eec82323
LMI		 8017 (interactive
8018 (list
8019 (progn
8020 (message "%s" (concat (this-command-keys) "- "))
8021 (read-char))))
8022 (message "")
8023 (gnus-summary-edit-article)
8024 (execute-kbd-macro (concat (this-command-keys) key))
8025 (gnus-article-edit-done))
8026
8027;;; Respooling
8028
6748645f 8029(defun gnus-summary-respool-query (&optional silent trace)
eec82323
LMI		 8030 "Query where the respool algorithm would put this article."
8031 (interactive)
eec82323
LMI		 8032 (let (gnus-mark-article-hook)
8033 (gnus-summary-select-article)
8034 (save-excursion
8035 (set-buffer gnus-original-article-buffer)
8036 (save-restriction
8037 (message-narrow-to-head)
6748645f 8038 (let ((groups (nnmail-article-group 'identity trace)))
eec82323
LMI		 8039 (unless silent
8040 (if groups
8041 (message "This message would go to %s"
8042 (mapconcat 'car groups ", "))
8043 (message "This message would go to no groups"))
8044 groups))))))
8045
6748645f
LMI		 8046(defun gnus-summary-respool-trace ()
8047 "Trace where the respool algorithm would put this article.
8048Display a buffer showing all fancy splitting patterns which matched."
8049 (interactive)
8050 (gnus-summary-respool-query nil t))
8051
eec82323
LMI		 8052;; Summary marking commands.
8053
8054(defun gnus-summary-kill-same-subject-and-select (&optional unmark)
8055 "Mark articles which has the same subject as read, and then select the next.
8056If UNMARK is positive, remove any kind of mark.
8057If UNMARK is negative, tick articles."
8058 (interactive "P")
eec82323
LMI		 8059 (when unmark
8060 (setq unmark (prefix-numeric-value unmark)))
8061 (let ((count
8062 (gnus-summary-mark-same-subject
8063 (gnus-summary-article-subject) unmark)))
8064 ;; Select next unread article. If auto-select-same mode, should
8065 ;; select the first unread article.
8066 (gnus-summary-next-article t (and gnus-auto-select-same
8067 (gnus-summary-article-subject)))
8068 (gnus-message 7 "%d article%s marked as %s"
8069 count (if (= count 1) " is" "s are")
8070 (if unmark "unread" "read"))))
8071
8072(defun gnus-summary-kill-same-subject (&optional unmark)
8073 "Mark articles which has the same subject as read.
8074If UNMARK is positive, remove any kind of mark.
8075If UNMARK is negative, tick articles."
8076 (interactive "P")
eec82323
LMI		 8077 (when unmark
8078 (setq unmark (prefix-numeric-value unmark)))
8079 (let ((count
8080 (gnus-summary-mark-same-subject
8081 (gnus-summary-article-subject) unmark)))
8082 ;; If marked as read, go to next unread subject.
8083 (when (null unmark)
8084 ;; Go to next unread subject.
8085 (gnus-summary-next-subject 1 t))
8086 (gnus-message 7 "%d articles are marked as %s"
8087 count (if unmark "unread" "read"))))
8088
8089(defun gnus-summary-mark-same-subject (subject &optional unmark)
8090 "Mark articles with same SUBJECT as read, and return marked number.
8091If optional argument UNMARK is positive, remove any kinds of marks.
8092If optional argument UNMARK is negative, mark articles as unread instead."
8093 (let ((count 1))
8094 (save-excursion
8095 (cond
8096 ((null unmark) ; Mark as read.
8097 (while (and
8098 (progn
8099 (gnus-summary-mark-article-as-read gnus-killed-mark)
8100 (gnus-summary-show-thread) t)
8101 (gnus-summary-find-subject subject))
8102 (setq count (1+ count))))
8103 ((> unmark 0) ; Tick.
8104 (while (and
8105 (progn
8106 (gnus-summary-mark-article-as-unread gnus-ticked-mark)
8107 (gnus-summary-show-thread) t)
8108 (gnus-summary-find-subject subject))
8109 (setq count (1+ count))))
8110 (t ; Mark as unread.
8111 (while (and
8112 (progn
8113 (gnus-summary-mark-article-as-unread gnus-unread-mark)
8114 (gnus-summary-show-thread) t)
8115 (gnus-summary-find-subject subject))
8116 (setq count (1+ count)))))
8117 (gnus-set-mode-line 'summary)
8118 ;; Return the number of marked articles.
8119 count)))
8120
8121(defun gnus-summary-mark-as-processable (n &optional unmark)
8122 "Set the process mark on the next N articles.
8123If N is negative, mark backward instead. If UNMARK is non-nil, remove
8124the process mark instead. The difference between N and the actual
8125number of articles marked is returned."
8126 (interactive "p")
eec82323
LMI		 8127 (let ((backward (< n 0))
8128 (n (abs n)))
8129 (while (and
8130 (> n 0)
8131 (if unmark
8132 (gnus-summary-remove-process-mark
8133 (gnus-summary-article-number))
8134 (gnus-summary-set-process-mark (gnus-summary-article-number)))
8135 (zerop (gnus-summary-next-subject (if backward -1 1) nil t)))
8136 (setq n (1- n)))
8137 (when (/= 0 n)
8138 (gnus-message 7 "No more articles"))
8139 (gnus-summary-recenter)
8140 (gnus-summary-position-point)
8141 n))
8142
8143(defun gnus-summary-unmark-as-processable (n)
8144 "Remove the process mark from the next N articles.
6748645f
LMI		 8145If N is negative, unmark backward instead. The difference between N and
8146the actual number of articles unmarked is returned."
eec82323 8147 (interactive "p")
eec82323
LMI		 8148 (gnus-summary-mark-as-processable n t))
8149
8150(defun gnus-summary-unmark-all-processable ()
8151 "Remove the process mark from all articles."
8152 (interactive)
eec82323
LMI		 8153 (save-excursion
8154 (while gnus-newsgroup-processable
8155 (gnus-summary-remove-process-mark (car gnus-newsgroup-processable))))
8156 (gnus-summary-position-point))
8157
8158(defun gnus-summary-mark-as-expirable (n)
8159 "Mark N articles forward as expirable.
8160If N is negative, mark backward instead. The difference between N and
8161the actual number of articles marked is returned."
8162 (interactive "p")
eec82323
LMI		 8163 (gnus-summary-mark-forward n gnus-expirable-mark))
8164
8165(defun gnus-summary-mark-article-as-replied (article)
8166 "Mark ARTICLE replied and update the summary line."
8167 (push article gnus-newsgroup-replied)
8168 (let ((buffer-read-only nil))
16409b0b 8169 (when (gnus-summary-goto-subject article nil t)
eec82323
LMI		 8170 (gnus-summary-update-secondary-mark article))))
8171
8172(defun gnus-summary-set-bookmark (article)
8173 "Set a bookmark in current article."
8174 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 8175 (when (or (not (get-buffer gnus-article-buffer))
8176 (not gnus-current-article)
8177 (not gnus-article-current)
8178 (not (equal gnus-newsgroup-name (car gnus-article-current))))
8179 (error "No current article selected"))
8180 ;; Remove old bookmark, if one exists.
8181 (let ((old (assq article gnus-newsgroup-bookmarks)))
8182 (when old
8183 (setq gnus-newsgroup-bookmarks
8184 (delq old gnus-newsgroup-bookmarks))))
8185 ;; Set the new bookmark, which is on the form
8186 ;; (article-number . line-number-in-body).
8187 (push
8188 (cons article
8189 (save-excursion
8190 (set-buffer gnus-article-buffer)
8191 (count-lines
8192 (min (point)
8193 (save-excursion
8194 (goto-char (point-min))
8195 (search-forward "\n\n" nil t)
8196 (point)))
8197 (point))))
8198 gnus-newsgroup-bookmarks)
8199 (gnus-message 6 "A bookmark has been added to the current article."))
8200
8201(defun gnus-summary-remove-bookmark (article)
8202 "Remove the bookmark from the current article."
8203 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 8204 ;; Remove old bookmark, if one exists.
8205 (let ((old (assq article gnus-newsgroup-bookmarks)))
8206 (if old
8207 (progn
8208 (setq gnus-newsgroup-bookmarks
8209 (delq old gnus-newsgroup-bookmarks))
8210 (gnus-message 6 "Removed bookmark."))
8211 (gnus-message 6 "No bookmark in current article."))))
8212
8213;; Suggested by Daniel Quinlan <quinlan@best.com>.
8214(defun gnus-summary-mark-as-dormant (n)
8215 "Mark N articles forward as dormant.
8216If N is negative, mark backward instead. The difference between N and
8217the actual number of articles marked is returned."
8218 (interactive "p")
eec82323
LMI		 8219 (gnus-summary-mark-forward n gnus-dormant-mark))
8220
8221(defun gnus-summary-set-process-mark (article)
8222 "Set the process mark on ARTICLE and update the summary line."
8223 (setq gnus-newsgroup-processable
8224 (cons article
8225 (delq article gnus-newsgroup-processable)))
8226 (when (gnus-summary-goto-subject article)
8227 (gnus-summary-show-thread)
6748645f 8228 (gnus-summary-goto-subject article)
eec82323
LMI		 8229 (gnus-summary-update-secondary-mark article)))
8230
8231(defun gnus-summary-remove-process-mark (article)
8232 "Remove the process mark from ARTICLE and update the summary line."
8233 (setq gnus-newsgroup-processable (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-set-saved-mark (article)
8240 "Set the process mark on ARTICLE and update the summary line."
8241 (push article gnus-newsgroup-saved)
8242 (when (gnus-summary-goto-subject article)
8243 (gnus-summary-update-secondary-mark article)))
8244
8245(defun gnus-summary-mark-forward (n &optional mark no-expire)
8246 "Mark N articles as read forwards.
8247If N is negative, mark backwards instead. Mark with MARK, ?r by default.
8248The difference between N and the actual number of articles marked is
16409b0b
GM		 8249returned.
8250Iff NO-EXPIRE, auto-expiry will be inhibited."
eec82323 8251 (interactive "p")
16409b0b 8252 (gnus-summary-show-thread)
eec82323
LMI		 8253 (let ((backward (< n 0))
8254 (gnus-summary-goto-unread
8255 (and gnus-summary-goto-unread
8256 (not (eq gnus-summary-goto-unread 'never))
8257 (not (memq mark (list gnus-unread-mark
8258 gnus-ticked-mark gnus-dormant-mark)))))
8259 (n (abs n))
8260 (mark (or mark gnus-del-mark)))
8261 (while (and (> n 0)
8262 (gnus-summary-mark-article nil mark no-expire)
8263 (zerop (gnus-summary-next-subject
8264 (if backward -1 1)
8265 (and gnus-summary-goto-unread
8266 (not (eq gnus-summary-goto-unread 'never)))
8267 t)))
8268 (setq n (1- n)))
8269 (when (/= 0 n)
8270 (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
8271 (gnus-summary-recenter)
8272 (gnus-summary-position-point)
8273 (gnus-set-mode-line 'summary)
8274 n))
8275
8276(defun gnus-summary-mark-article-as-read (mark)
8277 "Mark the current article quickly as read with MARK."
8278 (let ((article (gnus-summary-article-number)))
8279 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
8280 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8281 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8282 (push (cons article mark) gnus-newsgroup-reads)
8283 ;; Possibly remove from cache, if that is used.
8284 (when gnus-use-cache
8285 (gnus-cache-enter-remove-article article))
8286 ;; Allow the backend to change the mark.
8287 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8288 ;; Check for auto-expiry.
8289 (when (and gnus-newsgroup-auto-expire
16409b0b 8290 (memq mark gnus-auto-expirable-marks))
eec82323 8291 (setq mark gnus-expirable-mark)
6748645f
LMI		 8292 ;; Let the backend know about the mark change.
8293 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
eec82323
LMI		 8294 (push article gnus-newsgroup-expirable))
8295 ;; Set the mark in the buffer.
8296 (gnus-summary-update-mark mark 'unread)
8297 t))
8298
8299(defun gnus-summary-mark-article-as-unread (mark)
8300 "Mark the current article quickly as unread with MARK."
6748645f
LMI		 8301 (let* ((article (gnus-summary-article-number))
8302 (old-mark (gnus-summary-article-mark article)))
8303 ;; Allow the backend to change the mark.
8304 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8305 (if (eq mark old-mark)
8306 t
8307 (if (<= article 0)
8308 (progn
8309 (gnus-error 1 "Can't mark negative article numbers")
8310 nil)
8311 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8312 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8313 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
8314 (setq gnus-newsgroup-reads (delq article gnus-newsgroup-reads))
8315 (cond ((= mark gnus-ticked-mark)
8316 (push article gnus-newsgroup-marked))
8317 ((= mark gnus-dormant-mark)
8318 (push article gnus-newsgroup-dormant))
8319 (t
8320 (push article gnus-newsgroup-unreads)))
8321 (gnus-pull article gnus-newsgroup-reads)
eec82323 8322
6748645f
LMI		 8323 ;; See whether the article is to be put in the cache.
8324 (and gnus-use-cache
8325 (vectorp (gnus-summary-article-header article))
8326 (save-excursion
8327 (gnus-cache-possibly-enter-article
8328 gnus-newsgroup-name article
6748645f
LMI		 8329 (= mark gnus-ticked-mark)
8330 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
8331
8332 ;; Fix the mark.
8333 (gnus-summary-update-mark mark 'unread)
8334 t))))
eec82323
LMI		 8335
8336(defun gnus-summary-mark-article (&optional article mark no-expire)
8337 "Mark ARTICLE with MARK. MARK can be any character.
8338Four MARK strings are reserved: `? ' (unread), `?!' (ticked),
8339`??' (dormant) and `?E' (expirable).
16409b0b 8340If MARK is nil, then the default character `?r' is used.
eec82323 8341If ARTICLE is nil, then the article on the current line will be
16409b0b
GM		 8342marked.
8343Iff NO-EXPIRE, auto-expiry will be inhibited."
eec82323
LMI		 8344 ;; The mark might be a string.
8345 (when (stringp mark)
8346 (setq mark (aref mark 0)))
8347 ;; If no mark is given, then we check auto-expiring.
16409b0b
GM		 8348 (when (null mark)
8349 (setq mark gnus-del-mark))
8350 (when (and (not no-expire)
8351 gnus-newsgroup-auto-expire
8352 (memq mark gnus-auto-expirable-marks))
8353 (setq mark gnus-expirable-mark))
8354 (let ((article (or article (gnus-summary-article-number)))
8355 (old-mark (gnus-summary-article-mark article)))
6748645f
LMI		 8356 ;; Allow the backend to change the mark.
8357 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
8358 (if (eq mark old-mark)
8359 t
8360 (unless article
8361 (error "No article on current line"))
8362 (if (not (if (or (= mark gnus-unread-mark)
8363 (= mark gnus-ticked-mark)
8364 (= mark gnus-dormant-mark))
8365 (gnus-mark-article-as-unread article mark)
8366 (gnus-mark-article-as-read article mark)))
8367 t
8368 ;; See whether the article is to be put in the cache.
8369 (and gnus-use-cache
8370 (not (= mark gnus-canceled-mark))
8371 (vectorp (gnus-summary-article-header article))
8372 (save-excursion
8373 (gnus-cache-possibly-enter-article
8374 gnus-newsgroup-name article
6748645f
LMI		 8375 (= mark gnus-ticked-mark)
8376 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
8377
8378 (when (gnus-summary-goto-subject article nil t)
8379 (let ((buffer-read-only nil))
8380 (gnus-summary-show-thread)
8381 ;; Fix the mark.
8382 (gnus-summary-update-mark mark 'unread)
8383 t))))))
eec82323
LMI		 8384
8385(defun gnus-summary-update-secondary-mark (article)
8386 "Update the secondary (read, process, cache) mark."
8387 (gnus-summary-update-mark
8388 (cond ((memq article gnus-newsgroup-processable)
8389 gnus-process-mark)
8390 ((memq article gnus-newsgroup-cached)
8391 gnus-cached-mark)
8392 ((memq article gnus-newsgroup-replied)
8393 gnus-replied-mark)
8394 ((memq article gnus-newsgroup-saved)
8395 gnus-saved-mark)
8396 (t gnus-unread-mark))
8397 'replied)
8398 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 8399 (gnus-run-hooks 'gnus-summary-update-hook))
eec82323
LMI		 8400 t)
8401
8402(defun gnus-summary-update-mark (mark type)
8403 (let ((forward (cdr (assq type gnus-summary-mark-positions)))
8404 (buffer-read-only nil))
8405 (re-search-backward "[\n\r]" (gnus-point-at-bol) 'move-to-limit)
16409b0b
GM		 8406 (when forward
8407 (when (looking-at "\r")
8408 (incf forward))
8409 (when (<= (+ forward (point)) (point-max))
8410 ;; Go to the right position on the line.
8411 (goto-char (+ forward (point)))
8412 ;; Replace the old mark with the new mark.
8413 (subst-char-in-region (point) (1+ (point)) (char-after) mark)
8414 ;; Optionally update the marks by some user rule.
8415 (when (eq type 'unread)
8416 (gnus-data-set-mark
8417 (gnus-data-find (gnus-summary-article-number)) mark)
8418 (gnus-summary-update-line (eq mark gnus-unread-mark)))))))
eec82323
LMI		 8419
8420(defun gnus-mark-article-as-read (article &optional mark)
8421 "Enter ARTICLE in the pertinent lists and remove it from others."
8422 ;; Make the article expirable.
8423 (let ((mark (or mark gnus-del-mark)))
8424 (if (= mark gnus-expirable-mark)
8425 (push article gnus-newsgroup-expirable)
8426 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)))
8427 ;; Remove from unread and marked lists.
8428 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
8429 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
8430 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
8431 (push (cons article mark) gnus-newsgroup-reads)
8432 ;; Possibly remove from cache, if that is used.
8433 (when gnus-use-cache
6748645f
LMI		 8434 (gnus-cache-enter-remove-article article))
8435 t))
eec82323
LMI		 8436
8437(defun gnus-mark-article-as-unread (article &optional mark)
8438 "Enter ARTICLE in the pertinent lists and remove it from others."
8439 (let ((mark (or mark gnus-ticked-mark)))
6748645f
LMI		 8440 (if (<= article 0)
8441 (progn
8442 (gnus-error 1 "Can't mark negative article numbers")
8443 nil)
8444 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked)
8445 gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant)
8446 gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)
8447 gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
eec82323 8448
6748645f
LMI		 8449 ;; Unsuppress duplicates?
8450 (when gnus-suppress-duplicates
8451 (gnus-dup-unsuppress-article article))
8452
8453 (cond ((= mark gnus-ticked-mark)
8454 (push article gnus-newsgroup-marked))
8455 ((= mark gnus-dormant-mark)
8456 (push article gnus-newsgroup-dormant))
8457 (t
8458 (push article gnus-newsgroup-unreads)))
8459 (gnus-pull article gnus-newsgroup-reads)
8460 t)))
eec82323
LMI		 8461
8462(defalias 'gnus-summary-mark-as-unread-forward
8463 'gnus-summary-tick-article-forward)
8464(make-obsolete 'gnus-summary-mark-as-unread-forward
8465 'gnus-summary-tick-article-forward)
8466(defun gnus-summary-tick-article-forward (n)
8467 "Tick N articles forwards.
8468If N is negative, tick backwards instead.
8469The difference between N and the number of articles ticked is returned."
8470 (interactive "p")
8471 (gnus-summary-mark-forward n gnus-ticked-mark))
8472
8473(defalias 'gnus-summary-mark-as-unread-backward
8474 'gnus-summary-tick-article-backward)
8475(make-obsolete 'gnus-summary-mark-as-unread-backward
8476 'gnus-summary-tick-article-backward)
8477(defun gnus-summary-tick-article-backward (n)
8478 "Tick N articles backwards.
8479The difference between N and the number of articles ticked is returned."
8480 (interactive "p")
8481 (gnus-summary-mark-forward (- n) gnus-ticked-mark))
8482
8483(defalias 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
8484(make-obsolete 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
8485(defun gnus-summary-tick-article (&optional article clear-mark)
8486 "Mark current article as unread.
8487Optional 1st argument ARTICLE specifies article number to be marked as unread.
8488Optional 2nd argument CLEAR-MARK remove any kinds of mark."
8489 (interactive)
8490 (gnus-summary-mark-article article (if clear-mark gnus-unread-mark
8491 gnus-ticked-mark)))
8492
8493(defun gnus-summary-mark-as-read-forward (n)
8494 "Mark N articles as read forwards.
8495If N is negative, mark backwards instead.
8496The difference between N and the actual number of articles marked is
8497returned."
8498 (interactive "p")
16409b0b 8499 (gnus-summary-mark-forward n gnus-del-mark gnus-inhibit-user-auto-expire))
eec82323
LMI		 8500
8501(defun gnus-summary-mark-as-read-backward (n)
8502 "Mark the N articles as read backwards.
8503The difference between N and the actual number of articles marked is
8504returned."
8505 (interactive "p")
16409b0b
GM		 8506 (gnus-summary-mark-forward
8507 (- n) gnus-del-mark gnus-inhibit-user-auto-expire))
eec82323
LMI		 8508
8509(defun gnus-summary-mark-as-read (&optional article mark)
8510 "Mark current article as read.
8511ARTICLE specifies the article to be marked as read.
8512MARK specifies a string to be inserted at the beginning of the line."
8513 (gnus-summary-mark-article article mark))
8514
8515(defun gnus-summary-clear-mark-forward (n)
8516 "Clear marks from N articles forward.
8517If N is negative, clear backward instead.
8518The difference between N and the number of marks cleared is returned."
8519 (interactive "p")
8520 (gnus-summary-mark-forward n gnus-unread-mark))
8521
8522(defun gnus-summary-clear-mark-backward (n)
8523 "Clear marks from N articles backward.
8524The difference between N and the number of marks cleared is returned."
8525 (interactive "p")
8526 (gnus-summary-mark-forward (- n) gnus-unread-mark))
8527
8528(defun gnus-summary-mark-unread-as-read ()
8529 "Intended to be used by `gnus-summary-mark-article-hook'."
8530 (when (memq gnus-current-article gnus-newsgroup-unreads)
8531 (gnus-summary-mark-article gnus-current-article gnus-read-mark)))
8532
8533(defun gnus-summary-mark-read-and-unread-as-read ()
8534 "Intended to be used by `gnus-summary-mark-article-hook'."
8535 (let ((mark (gnus-summary-article-mark)))
8536 (when (or (gnus-unread-mark-p mark)
8537 (gnus-read-mark-p mark))
8538 (gnus-summary-mark-article gnus-current-article gnus-read-mark))))
8539
8540(defun gnus-summary-mark-region-as-read (point mark all)
8541 "Mark all unread articles between point and mark as read.
8542If given a prefix, mark all articles between point and mark as read,
8543even ticked and dormant ones."
8544 (interactive "r\nP")
8545 (save-excursion
8546 (let (article)
8547 (goto-char point)
8548 (beginning-of-line)
8549 (while (and
8550 (< (point) mark)
8551 (progn
8552 (when (or all
8553 (memq (setq article (gnus-summary-article-number))
8554 gnus-newsgroup-unreads))
8555 (gnus-summary-mark-article article gnus-del-mark))
8556 t)
8557 (gnus-summary-find-next))))))
8558
8559(defun gnus-summary-mark-below (score mark)
8560 "Mark articles with score less than SCORE with MARK."
8561 (interactive "P\ncMark: ")
eec82323
LMI		 8562 (setq score (if score
8563 (prefix-numeric-value score)
8564 (or gnus-summary-default-score 0)))
8565 (save-excursion
8566 (set-buffer gnus-summary-buffer)
8567 (goto-char (point-min))
8568 (while
8569 (progn
8570 (and (< (gnus-summary-article-score) score)
8571 (gnus-summary-mark-article nil mark))
8572 (gnus-summary-find-next)))))
8573
8574(defun gnus-summary-kill-below (&optional score)
8575 "Mark articles with score below SCORE as read."
8576 (interactive "P")
eec82323
LMI		 8577 (gnus-summary-mark-below score gnus-killed-mark))
8578
8579(defun gnus-summary-clear-above (&optional score)
8580 "Clear all marks from articles with score above SCORE."
8581 (interactive "P")
eec82323
LMI		 8582 (gnus-summary-mark-above score gnus-unread-mark))
8583
8584(defun gnus-summary-tick-above (&optional score)
8585 "Tick all articles with score above SCORE."
8586 (interactive "P")
eec82323
LMI		 8587 (gnus-summary-mark-above score gnus-ticked-mark))
8588
8589(defun gnus-summary-mark-above (score mark)
8590 "Mark articles with score over SCORE with MARK."
8591 (interactive "P\ncMark: ")
eec82323
LMI		 8592 (setq score (if score
8593 (prefix-numeric-value score)
8594 (or gnus-summary-default-score 0)))
8595 (save-excursion
8596 (set-buffer gnus-summary-buffer)
8597 (goto-char (point-min))
8598 (while (and (progn
8599 (when (> (gnus-summary-article-score) score)
8600 (gnus-summary-mark-article nil mark))
8601 t)
8602 (gnus-summary-find-next)))))
8603
8604;; Suggested by Daniel Quinlan <quinlan@best.com>.
8605(defalias 'gnus-summary-show-all-expunged 'gnus-summary-limit-include-expunged)
8606(defun gnus-summary-limit-include-expunged (&optional no-error)
8607 "Display all the hidden articles that were expunged for low scores."
8608 (interactive)
eec82323
LMI		 8609 (let ((buffer-read-only nil))
8610 (let ((scored gnus-newsgroup-scored)
8611 headers h)
8612 (while scored
8613 (unless (gnus-summary-goto-subject (caar scored))
8614 (and (setq h (gnus-summary-article-header (caar scored)))
8615 (< (cdar scored) gnus-summary-expunge-below)
8616 (push h headers)))
8617 (setq scored (cdr scored)))
8618 (if (not headers)
8619 (when (not no-error)
a8151ef7 8620 (error "No expunged articles hidden"))
eec82323
LMI		 8621 (goto-char (point-min))
8622 (gnus-summary-prepare-unthreaded (nreverse headers))
8623 (goto-char (point-min))
8624 (gnus-summary-position-point)
8625 t))))
8626
8627(defun gnus-summary-catchup (&optional all quietly to-here not-mark)
8628 "Mark all unread articles in this newsgroup as read.
8629If prefix argument ALL is non-nil, ticked and dormant articles will
8630also be marked as read.
8631If QUIETLY is non-nil, no questions will be asked.
8632If TO-HERE is non-nil, it should be a point in the buffer. All
8633articles before this point will be marked as read.
8634Note that this function will only catch up the unread article
8635in the current summary buffer limitation.
8636The number of articles marked as read is returned."
8637 (interactive "P")
eec82323
LMI		 8638 (prog1
8639 (save-excursion
8640 (when (or quietly
8641 (not gnus-interactive-catchup) ;Without confirmation?
8642 gnus-expert-user
8643 (gnus-y-or-n-p
8644 (if all
8645 "Mark absolutely all articles as read? "
8646 "Mark all unread articles as read? ")))
8647 (if (and not-mark
8648 (not gnus-newsgroup-adaptive)
8649 (not gnus-newsgroup-auto-expire)
a8151ef7
LMI		 8650 (not gnus-suppress-duplicates)
8651 (or (not gnus-use-cache)
6748645f 8652 (eq gnus-use-cache 'passive)))
eec82323
LMI		 8653 (progn
8654 (when all
8655 (setq gnus-newsgroup-marked nil
8656 gnus-newsgroup-dormant nil))
6748645f 8657 (setq gnus-newsgroup-unreads gnus-newsgroup-downloadable))
eec82323
LMI		 8658 ;; We actually mark all articles as canceled, which we
8659 ;; have to do when using auto-expiry or adaptive scoring.
8660 (gnus-summary-show-all-threads)
6748645f 8661 (when (gnus-summary-first-subject (not all) t)
eec82323
LMI		 8662 (while (and
8663 (if to-here (< (point) to-here) t)
8664 (gnus-summary-mark-article-as-read gnus-catchup-mark)
6748645f 8665 (gnus-summary-find-next (not all) nil nil t))))
eec82323
LMI		 8666 (gnus-set-mode-line 'summary))
8667 t))
8668 (gnus-summary-position-point)))
8669
8670(defun gnus-summary-catchup-to-here (&optional all)
8671 "Mark all unticked articles before the current one as read.
8672If ALL is non-nil, also mark ticked and dormant articles as read."
8673 (interactive "P")
eec82323
LMI		 8674 (save-excursion
8675 (gnus-save-hidden-threads
8676 (let ((beg (point)))
8677 ;; We check that there are unread articles.
8678 (when (or all (gnus-summary-find-prev))
8679 (gnus-summary-catchup all t beg)))))
8680 (gnus-summary-position-point))
8681
8682(defun gnus-summary-catchup-all (&optional quietly)
8683 "Mark all articles in this newsgroup as read."
8684 (interactive "P")
eec82323
LMI		 8685 (gnus-summary-catchup t quietly))
8686
8687(defun gnus-summary-catchup-and-exit (&optional all quietly)
16409b0b 8688 "Mark all unread articles in this group as read, then exit.
eec82323
LMI		 8689If prefix argument ALL is non-nil, all articles are marked as read."
8690 (interactive "P")
eec82323
LMI		 8691 (when (gnus-summary-catchup all quietly nil 'fast)
8692 ;; Select next newsgroup or exit.
6748645f
LMI		 8693 (if (and (not (gnus-group-quit-config gnus-newsgroup-name))
8694 (eq gnus-auto-select-next 'quietly))
eec82323
LMI		 8695 (gnus-summary-next-group nil)
8696 (gnus-summary-exit))))
8697
8698(defun gnus-summary-catchup-all-and-exit (&optional quietly)
8699 "Mark all articles in this newsgroup as read, and then exit."
8700 (interactive "P")
eec82323
LMI		 8701 (gnus-summary-catchup-and-exit t quietly))
8702
eec82323
LMI		 8703(defun gnus-summary-catchup-and-goto-next-group (&optional all)
8704 "Mark all articles in this group as read and select the next group.
8705If given a prefix, mark all articles, unread as well as ticked, as
8706read."
8707 (interactive "P")
eec82323
LMI		 8708 (save-excursion
8709 (gnus-summary-catchup all))
16409b0b
GM		 8710 (gnus-summary-next-group))
8711
8712;;;
8713;;; with article
8714;;;
8715
8716(defmacro gnus-with-article (article &rest forms)
8717 "Select ARTICLE and perform FORMS in the original article buffer.
8718Then replace the article with the result."
8719 `(progn
8720 ;; We don't want the article to be marked as read.
8721 (let (gnus-mark-article-hook)
8722 (gnus-summary-select-article t t nil ,article))
8723 (set-buffer gnus-original-article-buffer)
8724 ,@forms
8725 (if (not (gnus-check-backend-function
8726 'request-replace-article (car gnus-article-current)))
8727 (gnus-message 5 "Read-only group; not replacing")
8728 (unless (gnus-request-replace-article
8729 ,article (car gnus-article-current)
8730 (current-buffer) t)
8731 (error "Couldn't replace article")))
8732 ;; The cache and backlog have to be flushed somewhat.
8733 (when gnus-keep-backlog
8734 (gnus-backlog-remove-article
8735 (car gnus-article-current) (cdr gnus-article-current)))
8736 (when gnus-use-cache
8737 (gnus-cache-update-article
8738 (car gnus-article-current) (cdr gnus-article-current)))))
8739
8740(put 'gnus-with-article 'lisp-indent-function 1)
8741(put 'gnus-with-article 'edebug-form-spec '(form body))
eec82323
LMI		 8742
8743;; Thread-based commands.
8744
8745(defun gnus-summary-articles-in-thread (&optional article)
8746 "Return a list of all articles in the current thread.
8747If ARTICLE is non-nil, return all articles in the thread that starts
8748with that article."
8749 (let* ((article (or article (gnus-summary-article-number)))
8750 (data (gnus-data-find-list article))
8751 (top-level (gnus-data-level (car data)))
8752 (top-subject
8753 (cond ((null gnus-thread-operation-ignore-subject)
8754 (gnus-simplify-subject-re
8755 (mail-header-subject (gnus-data-header (car data)))))
8756 ((eq gnus-thread-operation-ignore-subject 'fuzzy)
8757 (gnus-simplify-subject-fuzzy
8758 (mail-header-subject (gnus-data-header (car data)))))
8759 (t nil)))
8760 (end-point (save-excursion
8761 (if (gnus-summary-go-to-next-thread)
8762 (point) (point-max))))
8763 articles)
8764 (while (and data
8765 (< (gnus-data-pos (car data)) end-point))
8766 (when (or (not top-subject)
8767 (string= top-subject
8768 (if (eq gnus-thread-operation-ignore-subject 'fuzzy)
8769 (gnus-simplify-subject-fuzzy
8770 (mail-header-subject
8771 (gnus-data-header (car data))))
8772 (gnus-simplify-subject-re
8773 (mail-header-subject
8774 (gnus-data-header (car data)))))))
8775 (push (gnus-data-number (car data)) articles))
8776 (unless (and (setq data (cdr data))
8777 (> (gnus-data-level (car data)) top-level))
8778 (setq data nil)))
8779 ;; Return the list of articles.
8780 (nreverse articles)))
8781
8782(defun gnus-summary-rethread-current ()
8783 "Rethread the thread the current article is part of."
8784 (interactive)
eec82323
LMI		 8785 (let* ((gnus-show-threads t)
8786 (article (gnus-summary-article-number))
8787 (id (mail-header-id (gnus-summary-article-header)))
8788 (gnus-newsgroup-threads (list (gnus-id-to-thread (gnus-root-id id)))))
8789 (unless id
8790 (error "No article on the current line"))
8791 (gnus-rebuild-thread id)
8792 (gnus-summary-goto-subject article)))
8793
8794(defun gnus-summary-reparent-thread ()
8795 "Make the current article child of the marked (or previous) article.
8796
8797Note that the re-threading will only work if `gnus-thread-ignore-subject'
8798is non-nil or the Subject: of both articles are the same."
8799 (interactive)
8800 (unless (not (gnus-group-read-only-p))
a8151ef7 8801 (error "The current newsgroup does not support article editing"))
eec82323 8802 (unless (<= (length gnus-newsgroup-processable) 1)
a8151ef7 8803 (error "No more than one article may be marked"))
eec82323
LMI		 8804 (save-window-excursion
8805 (let ((gnus-article-buffer " *reparent*")
8806 (current-article (gnus-summary-article-number))
8807 ;; First grab the marked article, otherwise one line up.
8808 (parent-article (if (not (null gnus-newsgroup-processable))
8809 (car gnus-newsgroup-processable)
8810 (save-excursion
8811 (if (eq (forward-line -1) 0)
8812 (gnus-summary-article-number)
a8151ef7 8813 (error "Beginning of summary buffer"))))))
eec82323 8814 (unless (not (eq current-article parent-article))
a8151ef7 8815 (error "An article may not be self-referential"))
eec82323
LMI		 8816 (let ((message-id (mail-header-id
8817 (gnus-summary-article-header parent-article))))
8818 (unless (and message-id (not (equal message-id "")))
a8151ef7 8819 (error "No message-id in desired parent"))
16409b0b
GM		 8820 (gnus-with-article current-article
8821 (save-restriction
eec82323 8822 (goto-char (point-min))
16409b0b 8823 (message-narrow-to-head)
6748645f
LMI		 8824 (if (re-search-forward "^References: " nil t)
8825 (progn
8826 (re-search-forward "^[^ \t]" nil t)
8827 (forward-line -1)
8828 (end-of-line)
8829 (insert " " message-id))
16409b0b 8830 (insert "References: " message-id "\n"))))
eec82323
LMI		 8831 (set-buffer gnus-summary-buffer)
8832 (gnus-summary-unmark-all-processable)
6748645f 8833 (gnus-summary-update-article current-article)
eec82323 8834 (gnus-summary-rethread-current)
a8151ef7 8835 (gnus-message 3 "Article %d is now the child of article %d"
eec82323
LMI		 8836 current-article parent-article)))))
8837
8838(defun gnus-summary-toggle-threads (&optional arg)
8839 "Toggle showing conversation threads.
8840If ARG is positive number, turn showing conversation threads on."
8841 (interactive "P")
eec82323
LMI		 8842 (let ((current (or (gnus-summary-article-number) gnus-newsgroup-end)))
8843 (setq gnus-show-threads
8844 (if (null arg) (not gnus-show-threads)
8845 (> (prefix-numeric-value arg) 0)))
8846 (gnus-summary-prepare)
8847 (gnus-summary-goto-subject current)
8848 (gnus-message 6 "Threading is now %s" (if gnus-show-threads "on" "off"))
8849 (gnus-summary-position-point)))
8850
8851(defun gnus-summary-show-all-threads ()
8852 "Show all threads."
8853 (interactive)
eec82323
LMI		 8854 (save-excursion
8855 (let ((buffer-read-only nil))
8856 (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)))
8857 (gnus-summary-position-point))
8858
8859(defun gnus-summary-show-thread ()
8860 "Show thread subtrees.
8861Returns nil if no thread was there to be shown."
8862 (interactive)
eec82323
LMI		 8863 (let ((buffer-read-only nil)
8864 (orig (point))
8865 ;; first goto end then to beg, to have point at beg after let
8866 (end (progn (end-of-line) (point)))
8867 (beg (progn (beginning-of-line) (point))))
8868 (prog1
8869 ;; Any hidden lines here?
8870 (search-forward "\r" end t)
8871 (subst-char-in-region beg end ?\^M ?\n t)
8872 (goto-char orig)
8873 (gnus-summary-position-point))))
8874
8875(defun gnus-summary-hide-all-threads ()
8876 "Hide all thread subtrees."
8877 (interactive)
eec82323
LMI		 8878 (save-excursion
8879 (goto-char (point-min))
8880 (gnus-summary-hide-thread)
8881 (while (zerop (gnus-summary-next-thread 1 t))
8882 (gnus-summary-hide-thread)))
8883 (gnus-summary-position-point))
8884
8885(defun gnus-summary-hide-thread ()
8886 "Hide thread subtrees.
8887Returns nil if no threads were there to be hidden."
8888 (interactive)
eec82323
LMI		 8889 (let ((buffer-read-only nil)
8890 (start (point))
8891 (article (gnus-summary-article-number)))
8892 (goto-char start)
8893 ;; Go forward until either the buffer ends or the subthread
8894 ;; ends.
8895 (when (and (not (eobp))
8896 (or (zerop (gnus-summary-next-thread 1 t))
8897 (goto-char (point-max))))
8898 (prog1
8899 (if (and (> (point) start)
8900 (search-backward "\n" start t))
8901 (progn
8902 (subst-char-in-region start (point) ?\n ?\^M)
8903 (gnus-summary-goto-subject article))
8904 (goto-char start)
16409b0b 8905 nil)))))
eec82323
LMI		 8906
8907(defun gnus-summary-go-to-next-thread (&optional previous)
8908 "Go to the same level (or less) next thread.
8909If PREVIOUS is non-nil, go to previous thread instead.
8910Return the article number moved to, or nil if moving was impossible."
8911 (let ((level (gnus-summary-thread-level))
8912 (way (if previous -1 1))
8913 (beg (point)))
8914 (forward-line way)
8915 (while (and (not (eobp))
8916 (< level (gnus-summary-thread-level)))
8917 (forward-line way))
8918 (if (eobp)
8919 (progn
8920 (goto-char beg)
8921 nil)
8922 (setq beg (point))
8923 (prog1
8924 (gnus-summary-article-number)
8925 (goto-char beg)))))
8926
8927(defun gnus-summary-next-thread (n &optional silent)
8928 "Go to the same level next N'th thread.
8929If N is negative, search backward instead.
8930Returns the difference between N and the number of skips actually
8931done.
8932
8933If SILENT, don't output messages."
8934 (interactive "p")
eec82323
LMI		 8935 (let ((backward (< n 0))
8936 (n (abs n)))
8937 (while (and (> n 0)
8938 (gnus-summary-go-to-next-thread backward))
8939 (decf n))
8940 (unless silent
8941 (gnus-summary-position-point))
8942 (when (and (not silent) (/= 0 n))
8943 (gnus-message 7 "No more threads"))
8944 n))
8945
8946(defun gnus-summary-prev-thread (n)
8947 "Go to the same level previous N'th thread.
8948Returns the difference between N and the number of skips actually
8949done."
8950 (interactive "p")
eec82323
LMI		 8951 (gnus-summary-next-thread (- n)))
8952
8953(defun gnus-summary-go-down-thread ()
8954 "Go down one level in the current thread."
8955 (let ((children (gnus-summary-article-children)))
8956 (when children
8957 (gnus-summary-goto-subject (car children)))))
8958
8959(defun gnus-summary-go-up-thread ()
8960 "Go up one level in the current thread."
8961 (let ((parent (gnus-summary-article-parent)))
8962 (when parent
8963 (gnus-summary-goto-subject parent))))
8964
8965(defun gnus-summary-down-thread (n)
8966 "Go down thread N steps.
8967If N is negative, go up instead.
8968Returns the difference between N and how many steps down that were
8969taken."
8970 (interactive "p")
eec82323
LMI		 8971 (let ((up (< n 0))
8972 (n (abs n)))
8973 (while (and (> n 0)
8974 (if up (gnus-summary-go-up-thread)
8975 (gnus-summary-go-down-thread)))
8976 (setq n (1- n)))
8977 (gnus-summary-position-point)
8978 (when (/= 0 n)
8979 (gnus-message 7 "Can't go further"))
8980 n))
8981
8982(defun gnus-summary-up-thread (n)
8983 "Go up thread N steps.
8984If N is negative, go up instead.
8985Returns the difference between N and how many steps down that were
8986taken."
8987 (interactive "p")
eec82323
LMI		 8988 (gnus-summary-down-thread (- n)))
8989
8990(defun gnus-summary-top-thread ()
8991 "Go to the top of the thread."
8992 (interactive)
eec82323
LMI		 8993 (while (gnus-summary-go-up-thread))
8994 (gnus-summary-article-number))
8995
8996(defun gnus-summary-kill-thread (&optional unmark)
8997 "Mark articles under current thread as read.
8998If the prefix argument is positive, remove any kinds of marks.
8999If the prefix argument is negative, tick articles instead."
9000 (interactive "P")
eec82323
LMI		 9001 (when unmark
9002 (setq unmark (prefix-numeric-value unmark)))
9003 (let ((articles (gnus-summary-articles-in-thread)))
9004 (save-excursion
9005 ;; Expand the thread.
9006 (gnus-summary-show-thread)
9007 ;; Mark all the articles.
9008 (while articles
9009 (gnus-summary-goto-subject (car articles))
9010 (cond ((null unmark)
9011 (gnus-summary-mark-article-as-read gnus-killed-mark))
9012 ((> unmark 0)
9013 (gnus-summary-mark-article-as-unread gnus-unread-mark))
9014 (t
9015 (gnus-summary-mark-article-as-unread gnus-ticked-mark)))
9016 (setq articles (cdr articles))))
9017 ;; Hide killed subtrees.
9018 (and (null unmark)
9019 gnus-thread-hide-killed
9020 (gnus-summary-hide-thread))
9021 ;; If marked as read, go to next unread subject.
9022 (when (null unmark)
9023 ;; Go to next unread subject.
9024 (gnus-summary-next-subject 1 t)))
9025 (gnus-set-mode-line 'summary))
9026
9027;; Summary sorting commands
9028
9029(defun gnus-summary-sort-by-number (&optional reverse)
9030 "Sort the summary buffer by article number.
9031Argument REVERSE means reverse order."
9032 (interactive "P")
9033 (gnus-summary-sort 'number reverse))
9034
9035(defun gnus-summary-sort-by-author (&optional reverse)
9036 "Sort the summary buffer by author name alphabetically.
16409b0b 9037If `case-fold-search' is non-nil, case of letters is ignored.
eec82323
LMI		 9038Argument REVERSE means reverse order."
9039 (interactive "P")
9040 (gnus-summary-sort 'author reverse))
9041
9042(defun gnus-summary-sort-by-subject (&optional reverse)
9043 "Sort the summary buffer by subject alphabetically. `Re:'s are ignored.
16409b0b 9044If `case-fold-search' is non-nil, case of letters is ignored.
eec82323
LMI		 9045Argument REVERSE means reverse order."
9046 (interactive "P")
9047 (gnus-summary-sort 'subject reverse))
9048
9049(defun gnus-summary-sort-by-date (&optional reverse)
9050 "Sort the summary buffer by date.
9051Argument REVERSE means reverse order."
9052 (interactive "P")
9053 (gnus-summary-sort 'date reverse))
9054
9055(defun gnus-summary-sort-by-score (&optional reverse)
9056 "Sort the summary buffer by score.
9057Argument REVERSE means reverse order."
9058 (interactive "P")
9059 (gnus-summary-sort 'score reverse))
9060
9061(defun gnus-summary-sort-by-lines (&optional reverse)
16409b0b 9062 "Sort the summary buffer by the number of lines.
eec82323
LMI		 9063Argument REVERSE means reverse order."
9064 (interactive "P")
9065 (gnus-summary-sort 'lines reverse))
9066
16409b0b
GM		 9067(defun gnus-summary-sort-by-chars (&optional reverse)
9068 "Sort the summary buffer by article length.
9069Argument REVERSE means reverse order."
9070 (interactive "P")
9071 (gnus-summary-sort 'chars reverse))
9072
eec82323
LMI		 9073(defun gnus-summary-sort (predicate reverse)
9074 "Sort summary buffer by PREDICATE. REVERSE means reverse order."
eec82323
LMI		 9075 (let* ((thread (intern (format "gnus-thread-sort-by-%s" predicate)))
9076 (article (intern (format "gnus-article-sort-by-%s" predicate)))
9077 (gnus-thread-sort-functions
16409b0b
GM		 9078 (if (not reverse)
9079 thread
9080 `(lambda (t1 t2)
9081 (,thread t2 t1))))
9082 (gnus-sort-gathered-threads-function
9083 gnus-thread-sort-functions)
eec82323 9084 (gnus-article-sort-functions
16409b0b
GM		 9085 (if (not reverse)
9086 article
9087 `(lambda (t1 t2)
9088 (,article t2 t1))))
eec82323
LMI		 9089 (buffer-read-only)
9090 (gnus-summary-prepare-hook nil))
9091 ;; We do the sorting by regenerating the threads.
9092 (gnus-summary-prepare)
9093 ;; Hide subthreads if needed.
9094 (when (and gnus-show-threads gnus-thread-hide-subtree)
9095 (gnus-summary-hide-all-threads))))
9096
9097;; Summary saving commands.
9098
9099(defun gnus-summary-save-article (&optional n not-saved)
9100 "Save the current article using the default saver function.
9101If N is a positive number, save the N next articles.
9102If N is a negative number, save the N previous articles.
9103If N is nil and any articles have been marked with the process mark,
9104save those articles instead.
9105The variable `gnus-default-article-saver' specifies the saver function."
9106 (interactive "P")
eec82323
LMI		 9107 (let* ((articles (gnus-summary-work-articles n))
9108 (save-buffer (save-excursion
9109 (nnheader-set-temp-buffer " *Gnus Save*")))
9110 (num (length articles))
16409b0b
GM		 9111 header file)
9112 (dolist (article articles)
9113 (setq header (gnus-summary-article-header article))
eec82323
LMI		 9114 (if (not (vectorp header))
9115 ;; This is a pseudo-article.
9116 (if (assq 'name header)
9117 (gnus-copy-file (cdr (assq 'name header)))
9118 (gnus-message 1 "Article %d is unsaveable" article))
9119 ;; This is a real article.
9120 (save-window-excursion
9121 (gnus-summary-select-article t nil nil article))
9122 (save-excursion
9123 (set-buffer save-buffer)
9124 (erase-buffer)
9125 (insert-buffer-substring gnus-original-article-buffer))
9126 (setq file (gnus-article-save save-buffer file num))
9127 (gnus-summary-remove-process-mark article)
9128 (unless not-saved
9129 (gnus-summary-set-saved-mark article))))
9130 (gnus-kill-buffer save-buffer)
9131 (gnus-summary-position-point)
9132 (gnus-set-mode-line 'summary)
9133 n))
9134
9135(defun gnus-summary-pipe-output (&optional arg)
9136 "Pipe the current article to a subprocess.
9137If N is a positive number, pipe the N next articles.
9138If N is a negative number, pipe the N previous articles.
9139If N is nil and any articles have been marked with the process mark,
9140pipe those articles instead."
9141 (interactive "P")
84169620 9142 (require 'gnus-art)
eec82323
LMI		 9143 (let ((gnus-default-article-saver 'gnus-summary-save-in-pipe))
9144 (gnus-summary-save-article arg t))
9145 (gnus-configure-windows 'pipe))
9146
9147(defun gnus-summary-save-article-mail (&optional arg)
9148 "Append the current article to an mail file.
9149If N is a positive number, save the N next articles.
9150If N is a negative number, save the N previous articles.
9151If N is nil and any articles have been marked with the process mark,
9152save those articles instead."
9153 (interactive "P")
84169620 9154 (require 'gnus-art)
eec82323
LMI		 9155 (let ((gnus-default-article-saver 'gnus-summary-save-in-mail))
9156 (gnus-summary-save-article arg)))
9157
9158(defun gnus-summary-save-article-rmail (&optional arg)
9159 "Append the current article to an rmail file.
9160If N is a positive number, save the N next articles.
9161If N is a negative number, save the N previous articles.
9162If N is nil and any articles have been marked with the process mark,
9163save those articles instead."
9164 (interactive "P")
84169620 9165 (require 'gnus-art)
eec82323
LMI		 9166 (let ((gnus-default-article-saver 'gnus-summary-save-in-rmail))
9167 (gnus-summary-save-article arg)))
9168
9169(defun gnus-summary-save-article-file (&optional arg)
9170 "Append the current article to a file.
9171If N is a positive number, save the N next articles.
9172If N is a negative number, save the N previous articles.
9173If N is nil and any articles have been marked with the process mark,
9174save those articles instead."
9175 (interactive "P")
84169620 9176 (require 'gnus-art)
eec82323
LMI		 9177 (let ((gnus-default-article-saver 'gnus-summary-save-in-file))
9178 (gnus-summary-save-article arg)))
9179
9180(defun gnus-summary-write-article-file (&optional arg)
9181 "Write the current article to a file, deleting the previous file.
9182If N is a positive number, save the N next articles.
9183If N is a negative number, save the N previous articles.
9184If N is nil and any articles have been marked with the process mark,
9185save those articles instead."
9186 (interactive "P")
84169620 9187 (require 'gnus-art)
eec82323
LMI		 9188 (let ((gnus-default-article-saver 'gnus-summary-write-to-file))
9189 (gnus-summary-save-article arg)))
9190
9191(defun gnus-summary-save-article-body-file (&optional arg)
9192 "Append the current article body to a file.
9193If N is a positive number, save the N next articles.
9194If N is a negative number, save the N previous articles.
9195If N is nil and any articles have been marked with the process mark,
9196save those articles instead."
9197 (interactive "P")
84169620 9198 (require 'gnus-art)
eec82323
LMI		 9199 (let ((gnus-default-article-saver 'gnus-summary-save-body-in-file))
9200 (gnus-summary-save-article arg)))
9201
9202(defun gnus-summary-pipe-message (program)
9203 "Pipe the current article through PROGRAM."
9204 (interactive "sProgram: ")
eec82323 9205 (gnus-summary-select-article)
6748645f 9206 (let ((mail-header-separator ""))
eec82323
LMI		 9207 (gnus-eval-in-buffer-window gnus-article-buffer
9208 (save-restriction
9209 (widen)
9210 (let ((start (window-start))
9211 buffer-read-only)
9212 (message-pipe-buffer-body program)
9213 (set-window-start (get-buffer-window (current-buffer)) start))))))
9214
9215(defun gnus-get-split-value (methods)
9216 "Return a value based on the split METHODS."
9217 (let (split-name method result match)
9218 (when methods
9219 (save-excursion
9220 (set-buffer gnus-original-article-buffer)
9221 (save-restriction
9222 (nnheader-narrow-to-headers)
d4dfaa19 9223 (while (and methods (not split-name))
eec82323
LMI		 9224 (goto-char (point-min))
9225 (setq method (pop methods))
9226 (setq match (car method))
9227 (when (cond
9228 ((stringp match)
9229 ;; Regular expression.
9230 (ignore-errors
9231 (re-search-forward match nil t)))
9232 ((gnus-functionp match)
9233 ;; Function.
9234 (save-restriction
9235 (widen)
9236 (setq result (funcall match gnus-newsgroup-name))))
9237 ((consp match)
9238 ;; Form.
9239 (save-restriction
9240 (widen)
9241 (setq result (eval match)))))
d4dfaa19 9242 (setq split-name (cdr method))
eec82323
LMI		 9243 (cond ((stringp result)
9244 (push (expand-file-name
9245 result gnus-article-save-directory)
9246 split-name))
9247 ((consp result)
9248 (setq split-name (append result split-name)))))))))
16409b0b 9249 (nreverse split-name)))
eec82323
LMI		 9250
9251(defun gnus-valid-move-group-p (group)
9252 (and (boundp group)
9253 (symbol-name group)
16409b0b
GM		 9254 (symbol-value group)
9255 (gnus-get-function (gnus-find-method-for-group
9256 (symbol-name group)) 'request-accept-article t)))
eec82323
LMI		 9257
9258(defun gnus-read-move-group-name (prompt default articles prefix)
9259 "Read a group name."
9260 (let* ((split-name (gnus-get-split-value gnus-move-split-methods))
9261 (minibuffer-confirm-incomplete nil) ; XEmacs
9262 (prom
9263 (format "%s %s to:"
9264 prompt
9265 (if (> (length articles) 1)
9266 (format "these %d articles" (length articles))
9267 "this article")))
9268 (to-newsgroup
9269 (cond
9270 ((null split-name)
9271 (gnus-completing-read default prom
9272 gnus-active-hashtb
9273 'gnus-valid-move-group-p
9274 nil prefix
9275 'gnus-group-history))
9276 ((= 1 (length split-name))
9277 (gnus-completing-read (car split-name) prom
9278 gnus-active-hashtb
9279 'gnus-valid-move-group-p
9280 nil nil
9281 'gnus-group-history))
9282 (t
9283 (gnus-completing-read nil prom
9284 (mapcar (lambda (el) (list el))
9285 (nreverse split-name))
9286 nil nil nil
16409b0b
GM		 9287 'gnus-group-history))))
9288 (to-method (gnus-server-to-method (gnus-group-method to-newsgroup))))
eec82323
LMI		 9289 (when to-newsgroup
9290 (if (or (string= to-newsgroup "")
9291 (string= to-newsgroup prefix))
9292 (setq to-newsgroup default))
9293 (unless to-newsgroup
9294 (error "No group name entered"))
9295 (or (gnus-active to-newsgroup)
16409b0b 9296 (gnus-activate-group to-newsgroup nil nil to-method)
eec82323
LMI		 9297 (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
9298 to-newsgroup))
16409b0b
GM		 9299 (or (and (gnus-request-create-group to-newsgroup to-method)
9300 (gnus-activate-group
9301 to-newsgroup nil nil to-method)
9302 (gnus-subscribe-group to-newsgroup))
eec82323
LMI		 9303 (error "Couldn't create group %s" to-newsgroup)))
9304 (error "No such group: %s" to-newsgroup)))
9305 to-newsgroup))
9306
16409b0b
GM		 9307(defun gnus-summary-save-parts (type dir n &optional reverse)
9308 "Save parts matching TYPE to DIR.
9309If REVERSE, save parts that do not match TYPE."
9310 (interactive
8b93df01
DL		 9311 (list (read-string "Save parts of type: "
9312 (or (car gnus-summary-save-parts-type-history)
9313 gnus-summary-save-parts-default-mime)
9314 'gnus-summary-save-parts-type-history)
9315 (setq gnus-summary-save-parts-last-directory
9316 (read-file-name "Save to directory: "
9317 gnus-summary-save-parts-last-directory
9318 nil t))
16409b0b
GM		 9319 current-prefix-arg))
9320 (gnus-summary-iterate n
9321 (let ((gnus-display-mime-function nil)
9322 (gnus-inhibit-treatment t))
9323 (gnus-summary-select-article))
9324 (save-excursion
9325 (set-buffer gnus-article-buffer)
9326 (let ((handles (or gnus-article-mime-handles
9327 (mm-dissect-buffer) (mm-uu-dissect))))
9328 (when handles
9329 (gnus-summary-save-parts-1 type dir handles reverse)
9330 (unless gnus-article-mime-handles ;; Don't destroy this case.
9331 (mm-destroy-parts handles)))))))
9332
9333(defun gnus-summary-save-parts-1 (type dir handle reverse)
9334 (if (stringp (car handle))
9335 (mapcar (lambda (h) (gnus-summary-save-parts-1 type dir h reverse))
9336 (cdr handle))
9337 (when (if reverse
9338 (not (string-match type (mm-handle-media-type handle)))
9339 (string-match type (mm-handle-media-type handle)))
9340 (let ((file (expand-file-name
9341 (file-name-nondirectory
9342 (or
9343 (mail-content-type-get
9344 (mm-handle-disposition handle) 'filename)
9345 (concat gnus-newsgroup-name
9346 "." (number-to-string
9347 (cdr gnus-article-current)))))
9348 dir)))
9349 (unless (file-exists-p file)
9350 (mm-save-part-to-file handle file))))))
9351
eec82323
LMI		 9352;; Summary extract commands
9353
9354(defun gnus-summary-insert-pseudos (pslist &optional not-view)
9355 (let ((buffer-read-only nil)
9356 (article (gnus-summary-article-number))
9357 after-article b e)
9358 (unless (gnus-summary-goto-subject article)
9359 (error "No such article: %d" article))
9360 (gnus-summary-position-point)
9361 ;; If all commands are to be bunched up on one line, we collect
9362 ;; them here.
9363 (unless gnus-view-pseudos-separately
9364 (let ((ps (setq pslist (sort pslist 'gnus-pseudos<)))
9365 files action)
9366 (while ps
9367 (setq action (cdr (assq 'action (car ps))))
9368 (setq files (list (cdr (assq 'name (car ps)))))
9369 (while (and ps (cdr ps)
9370 (string= (or action "1")
9371 (or (cdr (assq 'action (cadr ps))) "2")))
9372 (push (cdr (assq 'name (cadr ps))) files)
9373 (setcdr ps (cddr ps)))
9374 (when files
9375 (when (not (string-match "%s" action))
9376 (push " " files))
9377 (push " " files)
9378 (when (assq 'execute (car ps))
9379 (setcdr (assq 'execute (car ps))
9380 (funcall (if (string-match "%s" action)
9381 'format 'concat)
9382 action
9383 (mapconcat
9384 (lambda (f)
9385 (if (equal f " ")
9386 f
16409b0b 9387 (mm-quote-arg f)))
eec82323
LMI		 9388 files " ")))))
9389 (setq ps (cdr ps)))))
9390 (if (and gnus-view-pseudos (not not-view))
9391 (while pslist
9392 (when (assq 'execute (car pslist))
9393 (gnus-execute-command (cdr (assq 'execute (car pslist)))
9394 (eq gnus-view-pseudos 'not-confirm)))
9395 (setq pslist (cdr pslist)))
9396 (save-excursion
9397 (while pslist
9398 (setq after-article (or (cdr (assq 'article (car pslist)))
9399 (gnus-summary-article-number)))
9400 (gnus-summary-goto-subject after-article)
9401 (forward-line 1)
9402 (setq b (point))
9403 (insert " " (file-name-nondirectory
9404 (cdr (assq 'name (car pslist))))
9405 ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
9406 (setq e (point))
9407 (forward-line -1) ; back to `b'
9408 (gnus-add-text-properties
9409 b (1- e) (list 'gnus-number gnus-reffed-article-number
9410 gnus-mouse-face-prop gnus-mouse-face))
9411 (gnus-data-enter
9412 after-article gnus-reffed-article-number
9413 gnus-unread-mark b (car pslist) 0 (- e b))
9414 (push gnus-reffed-article-number gnus-newsgroup-unreads)
9415 (setq gnus-reffed-article-number (1- gnus-reffed-article-number))
9416 (setq pslist (cdr pslist)))))))
9417
9418(defun gnus-pseudos< (p1 p2)
9419 (let ((c1 (cdr (assq 'action p1)))
9420 (c2 (cdr (assq 'action p2))))
9421 (and c1 c2 (string< c1 c2))))
9422
9423(defun gnus-request-pseudo-article (props)
9424 (cond ((assq 'execute props)
9425 (gnus-execute-command (cdr (assq 'execute props)))))
9426 (let ((gnus-current-article (gnus-summary-article-number)))
6748645f 9427 (gnus-run-hooks 'gnus-mark-article-hook)))
eec82323
LMI		 9428
9429(defun gnus-execute-command (command &optional automatic)
9430 (save-excursion
9431 (gnus-article-setup-buffer)
9432 (set-buffer gnus-article-buffer)
9433 (setq buffer-read-only nil)
a8151ef7
LMI		 9434 (let ((command (if automatic command
9435 (read-string "Command: " (cons command 0)))))
eec82323
LMI		 9436 (erase-buffer)
9437 (insert "$ " command "\n\n")
9438 (if gnus-view-pseudo-asynchronously
9439 (start-process "gnus-execute" (current-buffer) shell-file-name
9440 shell-command-switch command)
9441 (call-process shell-file-name nil t nil
9442 shell-command-switch command)))))
9443
9444;; Summary kill commands.
9445
9446(defun gnus-summary-edit-global-kill (article)
9447 "Edit the \"global\" kill file."
9448 (interactive (list (gnus-summary-article-number)))
eec82323
LMI		 9449 (gnus-group-edit-global-kill article))
9450
9451(defun gnus-summary-edit-local-kill ()
9452 "Edit a local kill file applied to the current newsgroup."
9453 (interactive)
eec82323 9454 (setq gnus-current-headers (gnus-summary-article-header))
eec82323
LMI		 9455 (gnus-group-edit-local-kill
9456 (gnus-summary-article-number) gnus-newsgroup-name))
9457
9458;;; Header reading.
9459
9460(defun gnus-read-header (id &optional header)
9461 "Read the headers of article ID and enter them into the Gnus system."
9462 (let ((group gnus-newsgroup-name)
9463 (gnus-override-method
16409b0b
GM		 9464 (or
9465 gnus-override-method
9466 (and (gnus-news-group-p gnus-newsgroup-name)
9467 (car (gnus-refer-article-methods)))))
eec82323
LMI		 9468 where)
9469 ;; First we check to see whether the header in question is already
9470 ;; fetched.
9471 (if (stringp id)
9472 ;; This is a Message-ID.
9473 (setq header (or header (gnus-id-to-header id)))
9474 ;; This is an article number.
9475 (setq header (or header (gnus-summary-article-header id))))
9476 (if (and header
9477 (not (gnus-summary-article-sparse-p (mail-header-number header))))
9478 ;; We have found the header.
9479 header
6748645f
LMI		 9480 ;; If this is a sparse article, we have to nix out its
9481 ;; previous entry in the thread hashtb.
9482 (when (and header
9483 (gnus-summary-article-sparse-p (mail-header-number header)))
9484 (let* ((parent (gnus-parent-id (mail-header-references header)))
9485 (thread (and parent (gnus-id-to-thread parent))))
9486 (when thread
9487 (delq (assq header thread) thread))))
eec82323
LMI		 9488 ;; We have to really fetch the header to this article.
9489 (save-excursion
9490 (set-buffer nntp-server-buffer)
9491 (when (setq where (gnus-request-head id group))
9492 (nnheader-fold-continuation-lines)
9493 (goto-char (point-max))
9494 (insert ".\n")
9495 (goto-char (point-min))
9496 (insert "211 ")
9497 (princ (cond
9498 ((numberp id) id)
9499 ((cdr where) (cdr where))
9500 (header (mail-header-number header))
9501 (t gnus-reffed-article-number))
9502 (current-buffer))
9503 (insert " Article retrieved.\n"))
9504 (if (or (not where)
9505 (not (setq header (car (gnus-get-newsgroup-headers nil t)))))
9506 () ; Malformed head.
9507 (unless (gnus-summary-article-sparse-p (mail-header-number header))
9508 (when (and (stringp id)
9509 (not (string= (gnus-group-real-name group)
9510 (car where))))
9511 ;; If we fetched by Message-ID and the article came
9512 ;; from a different group, we fudge some bogus article
9513 ;; numbers for this article.
9514 (mail-header-set-number header gnus-reffed-article-number))
9515 (save-excursion
9516 (set-buffer gnus-summary-buffer)
9517 (decf gnus-reffed-article-number)
9518 (gnus-remove-header (mail-header-number header))
9519 (push header gnus-newsgroup-headers)
9520 (setq gnus-current-headers header)
9521 (push (mail-header-number header) gnus-newsgroup-limit)))
9522 header)))))
9523
9524(defun gnus-remove-header (number)
9525 "Remove header NUMBER from `gnus-newsgroup-headers'."
9526 (if (and gnus-newsgroup-headers
9527 (= number (mail-header-number (car gnus-newsgroup-headers))))
9528 (pop gnus-newsgroup-headers)
9529 (let ((headers gnus-newsgroup-headers))
9530 (while (and (cdr headers)
9531 (not (= number (mail-header-number (cadr headers)))))
9532 (pop headers))
9533 (when (cdr headers)
9534 (setcdr headers (cddr headers))))))
9535
9536;;;
9537;;; summary highlights
9538;;;
9539
9540(defun gnus-highlight-selected-summary ()
16409b0b 9541 "Highlight selected article in summary buffer."
eec82323 9542 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
eec82323
LMI		 9543 (when gnus-summary-selected-face
9544 (save-excursion
9545 (let* ((beg (progn (beginning-of-line) (point)))
9546 (end (progn (end-of-line) (point)))
9547 ;; Fix by Mike Dugan <dugan@bucrf16.bu.edu>.
9548 (from (if (get-text-property beg gnus-mouse-face-prop)
9549 beg
9550 (or (next-single-property-change
9551 beg gnus-mouse-face-prop nil end)
9552 beg)))
9553 (to
9554 (if (= from end)
9555 (- from 2)
9556 (or (next-single-property-change
9557 from gnus-mouse-face-prop nil end)
9558 end))))
9559 ;; If no mouse-face prop on line we will have to = from = end,
9560 ;; so we highlight the entire line instead.
9561 (when (= (+ to 2) from)
9562 (setq from beg)
9563 (setq to end))
9564 (if gnus-newsgroup-selected-overlay
9565 ;; Move old overlay.
9566 (gnus-move-overlay
9567 gnus-newsgroup-selected-overlay from to (current-buffer))
9568 ;; Create new overlay.
9569 (gnus-overlay-put
9570 (setq gnus-newsgroup-selected-overlay (gnus-make-overlay from to))
9571 'face gnus-summary-selected-face))))))
9572
9573;; New implementation by Christian Limpach <Christian.Limpach@nice.ch>.
9574(defun gnus-summary-highlight-line ()
9575 "Highlight current line according to `gnus-summary-highlight'."
9576 (let* ((list gnus-summary-highlight)
9577 (p (point))
9578 (end (progn (end-of-line) (point)))
9579 ;; now find out where the line starts and leave point there.
9580 (beg (progn (beginning-of-line) (point)))
9581 (article (gnus-summary-article-number))
9582 (score (or (cdr (assq (or article gnus-current-article)
9583 gnus-newsgroup-scored))
9584 gnus-summary-default-score 0))
9585 (mark (or (gnus-summary-article-mark) gnus-unread-mark))
9586 (inhibit-read-only t))
9587 ;; Eval the cars of the lists until we find a match.
9588 (let ((default gnus-summary-default-score))
9589 (while (and list
9590 (not (eval (caar list))))
9591 (setq list (cdr list))))
9592 (let ((face (cdar list)))
9593 (unless (eq face (get-text-property beg 'face))
6748645f 9594 (gnus-put-text-property-excluding-characters-with-faces
eec82323
LMI		 9595 beg end 'face
9596 (setq face (if (boundp face) (symbol-value face) face)))
9597 (when gnus-summary-highlight-line-function
9598 (funcall gnus-summary-highlight-line-function article face))))
9599 (goto-char p)))
9600
6748645f 9601(defun gnus-update-read-articles (group unread &optional compute)
eec82323
LMI		 9602 "Update the list of read articles in GROUP."
9603 (let* ((active (or gnus-newsgroup-active (gnus-active group)))
9604 (entry (gnus-gethash group gnus-newsrc-hashtb))
9605 (info (nth 2 entry))
9606 (prev 1)
9607 (unread (sort (copy-sequence unread) '<))
9608 read)
9609 (if (or (not info) (not active))
9610 ;; There is no info on this group if it was, in fact,
9611 ;; killed. Gnus stores no information on killed groups, so
9612 ;; there's nothing to be done.
9613 ;; One could store the information somewhere temporarily,
9614 ;; perhaps... Hmmm...
9615 ()
9616 ;; Remove any negative articles numbers.
9617 (while (and unread (< (car unread) 0))
9618 (setq unread (cdr unread)))
9619 ;; Remove any expired article numbers
9620 (while (and unread (< (car unread) (car active)))
9621 (setq unread (cdr unread)))
9622 ;; Compute the ranges of read articles by looking at the list of
9623 ;; unread articles.
9624 (while unread
9625 (when (/= (car unread) prev)
9626 (push (if (= prev (1- (car unread))) prev
9627 (cons prev (1- (car unread))))
9628 read))
9629 (setq prev (1+ (car unread)))
9630 (setq unread (cdr unread)))
9631 (when (<= prev (cdr active))
9632 (push (cons prev (cdr active)) read))
16409b0b 9633 (setq read (if (> (length read) 1) (nreverse read) read))
6748645f 9634 (if compute
16409b0b 9635 read
6748645f 9636 (save-excursion
16409b0b
GM		 9637 (let (setmarkundo)
9638 ;; Propagate the read marks to the backend.
9639 (when (gnus-check-backend-function 'request-set-mark group)
9640 (let ((del (gnus-remove-from-range (gnus-info-read info) read))
9641 (add (gnus-remove-from-range read (gnus-info-read info))))
9642 (when (or add del)
9643 (unless (gnus-check-group group)
9644 (error "Can't open server for %s" group))
9645 (gnus-request-set-mark
9646 group (delq nil (list (if add (list add 'add '(read)))
9647 (if del (list del 'del '(read))))))
9648 (setq setmarkundo
9649 `(gnus-request-set-mark
9650 ,group
9651 ',(delq nil (list
9652 (if del (list del 'add '(read)))
9653 (if add (list add 'del '(read))))))))))
9654 (set-buffer gnus-group-buffer)
9655 (gnus-undo-register
9656 `(progn
9657 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
9658 (gnus-info-set-read ',info ',(gnus-info-read info))
9659 (gnus-get-unread-articles-in-group ',info
9660 (gnus-active ,group))
9661 (gnus-group-update-group ,group t)
9662 ,setmarkundo))))
6748645f 9663 ;; Enter this list into the group info.
16409b0b 9664 (gnus-info-set-read info read)
6748645f
LMI		 9665 ;; Set the number of unread articles in gnus-newsrc-hashtb.
9666 (gnus-get-unread-articles-in-group info (gnus-active group))
9667 t))))
eec82323
LMI		 9668
9669(defun gnus-offer-save-summaries ()
9670 "Offer to save all active summary buffers."
9671 (save-excursion
9672 (let ((buflist (buffer-list))
9673 buffers bufname)
9674 ;; Go through all buffers and find all summaries.
9675 (while buflist
9676 (and (setq bufname (buffer-name (car buflist)))
9677 (string-match "Summary" bufname)
9678 (save-excursion
9679 (set-buffer bufname)
9680 ;; We check that this is, indeed, a summary buffer.
9681 (and (eq major-mode 'gnus-summary-mode)
9682 ;; Also make sure this isn't bogus.
9683 gnus-newsgroup-prepared
9684 ;; Also make sure that this isn't a dead summary buffer.
9685 (not gnus-dead-summary-mode)))
9686 (push bufname buffers))
9687 (setq buflist (cdr buflist)))
9688 ;; Go through all these summary buffers and offer to save them.
9689 (when buffers
9690 (map-y-or-n-p
9691 "Update summary buffer %s? "
6748645f
LMI		 9692 (lambda (buf)
9693 (switch-to-buffer buf)
9694 (gnus-summary-exit))
eec82323
LMI		 9695 buffers)))))
9696
16409b0b
GM		 9697(defun gnus-summary-setup-default-charset ()
9698 "Setup newsgroup default charset."
9699 (if (equal gnus-newsgroup-name "nndraft:drafts")
9700 (setq gnus-newsgroup-charset nil)
9701 (let* ((name (and gnus-newsgroup-name
9702 (gnus-group-real-name gnus-newsgroup-name)))
9703 (ignored-charsets
9704 (or gnus-newsgroup-ephemeral-ignored-charsets
9705 (append
9706 (and gnus-newsgroup-name
9707 (or (gnus-group-find-parameter gnus-newsgroup-name
9708 'ignored-charsets t)
9709 (let ((alist gnus-group-ignored-charsets-alist)
9710 elem (charsets nil))
9711 (while (setq elem (pop alist))
9712 (when (and name
9713 (string-match (car elem) name))
9714 (setq alist nil
9715 charsets (cdr elem))))
9716 charsets)))
9717 gnus-newsgroup-ignored-charsets))))
9718 (setq gnus-newsgroup-charset
9719 (or gnus-newsgroup-ephemeral-charset
9720 (and gnus-newsgroup-name
9721 (or (gnus-group-find-parameter gnus-newsgroup-name 'charset)
9722 (let ((alist gnus-group-charset-alist)
9723 elem charset)
9724 (while (setq elem (pop alist))
9725 (when (and name
9726 (string-match (car elem) name))
9727 (setq alist nil
9728 charset (cadr elem))))
9729 charset)))
9730 gnus-default-charset))
9731 (set (make-local-variable 'gnus-newsgroup-ignored-charsets)
9732 ignored-charsets))))
9733
9734;;;
9735;;; Mime Commands
9736;;;
9737
9738(defun gnus-summary-display-buttonized (&optional show-all-parts)
9739 "Display the current article buffer fully MIME-buttonized.
9740If SHOW-ALL-PARTS (the prefix) is non-nil, all multipart/* parts are
9741treated as multipart/mixed."
9742 (interactive "P")
9743 (require 'gnus-art)
9744 (let ((gnus-unbuttonized-mime-types nil)
9745 (gnus-mime-display-multipart-as-mixed show-all-parts))
9746 (gnus-summary-show-article)))
9747
9748(defun gnus-summary-repair-multipart (article)
9749 "Add a Content-Type header to a multipart article without one."
9750 (interactive (list (gnus-summary-article-number)))
9751 (gnus-with-article article
9752 (message-narrow-to-head)
9753 (goto-char (point-max))
9754 (widen)
9755 (when (search-forward "\n--" nil t)
9756 (let ((separator (buffer-substring (point) (gnus-point-at-eol))))
9757 (message-narrow-to-head)
9758 (message-remove-header "Mime-Version")
9759 (message-remove-header "Content-Type")
9760 (goto-char (point-max))
9761 (insert (format "Content-Type: multipart/mixed; boundary=\"%s\"\n"
9762 separator))
9763 (insert "Mime-Version: 1.0\n")
9764 (widen))))
9765 (let (gnus-mark-article-hook)
9766 (gnus-summary-select-article t t nil article)))
9767
9768(defun gnus-summary-toggle-display-buttonized ()
9769 "Toggle the buttonizing of the article buffer."
9770 (interactive)
9771 (require 'gnus-art)
9772 (if (setq gnus-inhibit-mime-unbuttonizing
9773 (not gnus-inhibit-mime-unbuttonizing))
9774 (let ((gnus-unbuttonized-mime-types nil))
9775 (gnus-summary-show-article))
9776 (gnus-summary-show-article)))
9777
9778;;;
9779;;; Generic summary marking commands
9780;;;
9781
9782(defvar gnus-summary-marking-alist
9783 '((read gnus-del-mark "d")
9784 (unread gnus-unread-mark "u")
9785 (ticked gnus-ticked-mark "!")
9786 (dormant gnus-dormant-mark "?")
9787 (expirable gnus-expirable-mark "e"))
9788 "An alist of names/marks/keystrokes.")
9789
9790(defvar gnus-summary-generic-mark-map (make-sparse-keymap))
9791(defvar gnus-summary-mark-map)
9792
9793(defun gnus-summary-make-all-marking-commands ()
9794 (define-key gnus-summary-mark-map "M" gnus-summary-generic-mark-map)
9795 (dolist (elem gnus-summary-marking-alist)
9796 (apply 'gnus-summary-make-marking-command elem)))
9797
9798(defun gnus-summary-make-marking-command (name mark keystroke)
9799 (let ((map (make-sparse-keymap)))
9800 (define-key gnus-summary-generic-mark-map keystroke map)
9801 (dolist (lway `((next "next" next nil "n")
9802 (next-unread "next unread" next t "N")
9803 (prev "previous" prev nil "p")
9804 (prev-unread "previous unread" prev t "P")
9805 (nomove "" nil nil ,keystroke)))
9806 (let ((func (gnus-summary-make-marking-command-1
9807 mark (car lway) lway name)))
9808 (setq func (eval func))
9809 (define-key map (nth 4 lway) func)))))
9810
9811(defun gnus-summary-make-marking-command-1 (mark way lway name)
9812 `(defun ,(intern
9813 (format "gnus-summary-put-mark-as-%s%s"
9814 name (if (eq way 'nomove)
9815 ""
9816 (concat "-" (symbol-name way)))))
9817 (n)
9818 ,(format
9819 "Mark the current article as %s%s.
9820If N, the prefix, then repeat N times.
9821If N is negative, move in reverse order.
9822The difference between N and the actual number of articles marked is
9823returned."
9824 name (cadr lway))
9825 (interactive "p")
9826 (gnus-summary-generic-mark n ,mark ',(nth 2 lway) ,(nth 3 lway))))
9827
9828(defun gnus-summary-generic-mark (n mark move unread)
9829 "Mark N articles with MARK."
9830 (unless (eq major-mode 'gnus-summary-mode)
9831 (error "This command can only be used in the summary buffer"))
9832 (gnus-summary-show-thread)
9833 (let ((nummove
9834 (cond
9835 ((eq move 'next) 1)
9836 ((eq move 'prev) -1)
9837 (t 0))))
9838 (if (zerop nummove)
9839 (setq n 1)
9840 (when (< n 0)
9841 (setq n (abs n)
9842 nummove (* -1 nummove))))
9843 (while (and (> n 0)
9844 (gnus-summary-mark-article nil mark)
9845 (zerop (gnus-summary-next-subject nummove unread t)))
9846 (setq n (1- n)))
9847 (when (/= 0 n)
9848 (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
9849 (gnus-summary-recenter)
9850 (gnus-summary-position-point)
9851 (gnus-set-mode-line 'summary)
9852 n))
9853
9854(gnus-summary-make-all-marking-commands)
9855
a8151ef7
LMI		 9856(gnus-ems-redefine)
9857
eec82323
LMI		 9858(provide 'gnus-sum)
9859
9860(run-hooks 'gnus-sum-load-hook)
9861
9862;;; gnus-sum.el ends here
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