(kmacro-lambda-form, kmacro-extract-lambda): Add.
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
23f87bed 2;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
16409b0b 3;; Free Software Foundation, Inc.
eec82323 4
6748645f 5;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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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
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29(eval-when-compile
30 (require 'cl)
31 (defvar tool-bar-map))
5ab7173c 32
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33(require 'gnus)
34(require 'gnus-group)
35(require 'gnus-spec)
36(require 'gnus-range)
37(require 'gnus-int)
38(require 'gnus-undo)
6748645f 39(require 'gnus-util)
16409b0b 40(require 'mm-decode)
08c9a385 41(require 'nnoo)
23f87bed 42
6748645f 43(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 44(autoload 'gnus-cache-write-active "gnus-cache")
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45(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
46(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
08c9a385 47(autoload 'mm-uu-dissect "mm-uu")
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48(autoload 'gnus-article-outlook-deuglify-article "deuglify"
49 "Deuglify broken Outlook (Express) articles and redisplay."
50 t)
51(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
52(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
53(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
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54
55(defcustom gnus-kill-summary-on-exit t
56 "*If non-nil, kill the summary buffer when you exit from it.
57If nil, the summary will become a \"*Dead Summary*\" buffer, and
58it will be killed sometime later."
59 :group 'gnus-summary-exit
60 :type 'boolean)
61
62(defcustom gnus-fetch-old-headers nil
63 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
64If an unread article in the group refers to an older, already read (or
65just marked as read) article, the old article will not normally be
1232b9cb 66displayed in the Summary buffer. If this variable is t, Gnus
eec82323 67will attempt to grab the headers to the old articles, and thereby
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68build complete threads. If it has the value `some', only enough
69headers to connect otherwise loose threads will be displayed. This
70variable can also be a number. In that case, no more than that number
71of old headers will be fetched. If it has the value `invisible', all
72old headers will be fetched, but none will be displayed.
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73
74The server has to support NOV for any of this to work."
75 :group 'gnus-thread
76 :type '(choice (const :tag "off" nil)
1232b9cb 77 (const :tag "on" t)
eec82323 78 (const some)
1232b9cb 79 (const invisible)
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80 number
81 (sexp :menu-tag "other" t)))
82
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83(defcustom gnus-refer-thread-limit 200
84 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
85If t, fetch all the available old headers."
86 :group 'gnus-thread
87 :type '(choice number
88 (sexp :menu-tag "other" t)))
89
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90(defcustom gnus-summary-make-false-root 'adopt
91 "*nil means that Gnus won't gather loose threads.
92If the root of a thread has expired or been read in a previous
93session, the information necessary to build a complete thread has been
94lost. Instead of having many small sub-threads from this original thread
95scattered all over the summary buffer, Gnus can gather them.
96
97If non-nil, Gnus will try to gather all loose sub-threads from an
98original thread into one large thread.
99
100If this variable is non-nil, it should be one of `none', `adopt',
101`dummy' or `empty'.
102
103If this variable is `none', Gnus will not make a false root, but just
104present the sub-threads after another.
105If this variable is `dummy', Gnus will create a dummy root that will
106have all the sub-threads as children.
107If this variable is `adopt', Gnus will make one of the \"children\"
108the parent and mark all the step-children as such.
109If this variable is `empty', the \"children\" are printed with empty
110subject fields. (Or rather, they will be printed with a string
111given by the `gnus-summary-same-subject' variable.)"
112 :group 'gnus-thread
113 :type '(choice (const :tag "off" nil)
114 (const none)
115 (const dummy)
116 (const adopt)
117 (const empty)))
118
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119(defcustom gnus-summary-make-false-root-always nil
120 "Always make a false dummy root."
a08b59c9 121 :version "21.4"
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122 :group 'gnus-thread
123 :type 'boolean)
124
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125(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
126 "*A regexp to match subjects to be excluded from loose thread gathering.
127As loose thread gathering is done on subjects only, that means that
128there can be many false gatherings performed. By rooting out certain
129common subjects, gathering might become saner."
130 :group 'gnus-thread
131 :type 'regexp)
132
133(defcustom gnus-summary-gather-subject-limit nil
134 "*Maximum length of subject comparisons when gathering loose threads.
135Use nil to compare full subjects. Setting this variable to a low
136number will help gather threads that have been corrupted by
137newsreaders chopping off subject lines, but it might also mean that
138unrelated articles that have subject that happen to begin with the
139same few characters will be incorrectly gathered.
140
141If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
142comparing subjects."
143 :group 'gnus-thread
144 :type '(choice (const :tag "off" nil)
145 (const fuzzy)
146 (sexp :menu-tag "on" t)))
147
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148(defcustom gnus-simplify-subject-functions nil
149 "List of functions taking a string argument that simplify subjects.
150The functions are applied recursively.
151
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152Useful functions to put in this list include:
153`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
154`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
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155 :group 'gnus-thread
156 :type '(repeat function))
157
eec82323 158(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 159 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
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160 :group 'gnus-thread
161 :type '(choice (const :tag "off" nil)
162 regexp))
163
164(defcustom gnus-build-sparse-threads nil
165 "*If non-nil, fill in the gaps in threads.
166If `some', only fill in the gaps that are needed to tie loose threads
167together. If `more', fill in all leaf nodes that Gnus can find. If
168non-nil and non-`some', fill in all gaps that Gnus manages to guess."
169 :group 'gnus-thread
170 :type '(choice (const :tag "off" nil)
171 (const some)
172 (const more)
173 (sexp :menu-tag "all" t)))
174
175(defcustom gnus-summary-thread-gathering-function
176 'gnus-gather-threads-by-subject
6748645f 177 "*Function used for gathering loose threads.
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178There are two pre-defined functions: `gnus-gather-threads-by-subject',
179which only takes Subjects into consideration; and
180`gnus-gather-threads-by-references', which compared the References
181headers of the articles to find matches."
182 :group 'gnus-thread
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183 :type '(radio (function-item gnus-gather-threads-by-subject)
184 (function-item gnus-gather-threads-by-references)
185 (function :tag "other")))
eec82323 186
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187(defcustom gnus-summary-same-subject ""
188 "*String indicating that the current article has the same subject as the previous.
189This variable will only be used if the value of
190`gnus-summary-make-false-root' is `empty'."
191 :group 'gnus-summary-format
192 :type 'string)
193
194(defcustom gnus-summary-goto-unread t
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195 "*If t, many commands will go to the next unread article.
196This applies to marking commands as well as other commands that
197\"naturally\" select the next article, like, for instance, `SPC' at
198the end of an article.
199
200If nil, the marking commands do NOT go to the next unread article
2642ac8f 201\(they go to the next article instead). If `never', commands that
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202usually go to the next unread article, will go to the next article,
203whether it is read or not."
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204 :group 'gnus-summary-marks
205 :link '(custom-manual "(gnus)Setting Marks")
206 :type '(choice (const :tag "off" nil)
207 (const never)
208 (sexp :menu-tag "on" t)))
209
210(defcustom gnus-summary-default-score 0
211 "*Default article score level.
212All scores generated by the score files will be added to this score.
213If this variable is nil, scoring will be disabled."
214 :group 'gnus-score-default
215 :type '(choice (const :tag "disable")
216 integer))
217
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218(defcustom gnus-summary-default-high-score 0
219 "*Default threshold for a high scored article.
220An article will be highlighted as high scored if its score is greater
221than this score."
a08b59c9 222 :version "21.4"
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223 :group 'gnus-score-default
224 :type 'integer)
225
226(defcustom gnus-summary-default-low-score 0
227 "*Default threshold for a low scored article.
228An article will be highlighted as low scored if its score is smaller
229than this score."
a08b59c9 230 :version "21.4"
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231 :group 'gnus-score-default
232 :type 'integer)
233
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234(defcustom gnus-summary-zcore-fuzz 0
235 "*Fuzziness factor for the zcore in the summary buffer.
236Articles with scores closer than this to `gnus-summary-default-score'
237will not be marked."
238 :group 'gnus-summary-format
239 :type 'integer)
240
241(defcustom gnus-simplify-subject-fuzzy-regexp nil
242 "*Strings to be removed when doing fuzzy matches.
243This can either be a regular expression or list of regular expressions
244that will be removed from subject strings if fuzzy subject
245simplification is selected."
246 :group 'gnus-thread
247 :type '(repeat regexp))
248
249(defcustom gnus-show-threads t
250 "*If non-nil, display threads in summary mode."
251 :group 'gnus-thread
252 :type 'boolean)
253
254(defcustom gnus-thread-hide-subtree nil
255 "*If non-nil, hide all threads initially.
23f87bed 256This can be a predicate specifier which says which threads to hide.
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257If threads are hidden, you have to run the command
258`gnus-summary-show-thread' by hand or use `gnus-select-article-hook'
259to expose hidden threads."
260 :group 'gnus-thread
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261 :type '(radio (sexp :format "Non-nil\n"
262 :match (lambda (widget value)
263 (not (or (consp value) (functionp value))))
264 :value t)
265 (const nil)
266 (sexp :tag "Predicate specifier" :size 0)))
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267
268(defcustom gnus-thread-hide-killed t
269 "*If non-nil, hide killed threads automatically."
270 :group 'gnus-thread
271 :type 'boolean)
272
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273(defcustom gnus-thread-ignore-subject t
274 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
275If nil, articles that have different subjects from their parents will
276start separate threads."
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277 :group 'gnus-thread
278 :type 'boolean)
279
280(defcustom gnus-thread-operation-ignore-subject t
281 "*If non-nil, subjects will be ignored when doing thread commands.
282This affects commands like `gnus-summary-kill-thread' and
283`gnus-summary-lower-thread'.
284
285If this variable is nil, articles in the same thread with different
286subjects will not be included in the operation in question. If this
287variable is `fuzzy', only articles that have subjects that are fuzzily
288equal will be included."
289 :group 'gnus-thread
290 :type '(choice (const :tag "off" nil)
291 (const fuzzy)
292 (sexp :tag "on" t)))
293
294(defcustom gnus-thread-indent-level 4
295 "*Number that says how much each sub-thread should be indented."
296 :group 'gnus-thread
297 :type 'integer)
298
299(defcustom gnus-auto-extend-newsgroup t
300 "*If non-nil, extend newsgroup forward and backward when requested."
301 :group 'gnus-summary-choose
302 :type 'boolean)
303
304(defcustom gnus-auto-select-first t
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305 "*If non-nil, select the article under point.
306Which article this is is controlled by the `gnus-auto-select-subject'
307variable.
308
309If you want to prevent automatic selection of articles in some
310newsgroups, set the variable to nil in `gnus-select-group-hook'."
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311 :group 'gnus-group-select
312 :type '(choice (const :tag "none" nil)
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313 (sexp :menu-tag "first" t)))
314
315(defcustom gnus-auto-select-subject 'unread
316 "*Says what subject to place under point when entering a group.
317
318This variable can either be the symbols `first' (place point on the
319first subject), `unread' (place point on the subject line of the first
320unread article), `best' (place point on the subject line of the
321higest-scored article), `unseen' (place point on the subject line of
322the first unseen article), 'unseen-or-unread' (place point on the subject
323line of the first unseen article or, if all article have been seen, on the
324subject line of the first unread article), or a function to be called to
325place point on some subject line."
a08b59c9 326 :version "21.4"
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327 :group 'gnus-group-select
328 :type '(choice (const best)
329 (const unread)
330 (const first)
331 (const unseen)
332 (const unseen-or-unread)))
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333
334(defcustom gnus-auto-select-next t
335 "*If non-nil, offer to go to the next group from the end of the previous.
336If the value is t and the next newsgroup is empty, Gnus will exit
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337summary mode and go back to group mode. If the value is neither nil
338nor t, Gnus will select the following unread newsgroup. In
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339particular, if the value is the symbol `quietly', the next unread
340newsgroup will be selected without any confirmation, and if it is
341`almost-quietly', the next group will be selected without any
342confirmation if you are located on the last article in the group.
23f87bed 343Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
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344will go to the next group without confirmation."
345 :group 'gnus-summary-maneuvering
346 :type '(choice (const :tag "off" nil)
347 (const quietly)
348 (const almost-quietly)
349 (const slightly-quietly)
350 (sexp :menu-tag "on" t)))
351
352(defcustom gnus-auto-select-same nil
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353 "*If non-nil, select the next article with the same subject.
354If there are no more articles with the same subject, go to
355the first unread article."
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356 :group 'gnus-summary-maneuvering
357 :type 'boolean)
358
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359(defcustom gnus-auto-goto-ignores 'unfetched
360 "*Says how to handle unfetched articles when maneuvering.
361
362This variable can either be the symbols nil (maneuver to any
363article), `undownloaded' (maneuvering while unplugged ignores articles
364that have not been fetched), `always-undownloaded' (maneuvering always
365ignores articles that have not been fetched), `unfetched' (maneuvering
366ignores articles whose headers have not been fetched).
367
368NOTE: The list of unfetched articles will always be nil when plugged
369and, when unplugged, a subset of the undownloaded article list."
a08b59c9 370 :version "21.4"
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371 :group 'gnus-summary-maneuvering
372 :type '(choice (const :tag "None" nil)
373 (const :tag "Undownloaded when unplugged" undownloaded)
374 (const :tag "Undownloaded" always-undownloaded)
375 (const :tag "Unfetched" unfetched)))
376
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377(defcustom gnus-summary-check-current nil
378 "*If non-nil, consider the current article when moving.
379The \"unread\" movement commands will stay on the same line if the
380current article is unread."
381 :group 'gnus-summary-maneuvering
382 :type 'boolean)
383
384(defcustom gnus-auto-center-summary t
385 "*If non-nil, always center the current summary buffer.
386In particular, if `vertical' do only vertical recentering. If non-nil
387and non-`vertical', do both horizontal and vertical recentering."
388 :group 'gnus-summary-maneuvering
389 :type '(choice (const :tag "none" nil)
390 (const vertical)
16409b0b 391 (integer :tag "height")
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392 (sexp :menu-tag "both" t)))
393
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394(defvar gnus-auto-center-group t
395 "*If non-nil, always center the group buffer.")
396
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397(defcustom gnus-show-all-headers nil
398 "*If non-nil, don't hide any headers."
399 :group 'gnus-article-hiding
400 :group 'gnus-article-headers
401 :type 'boolean)
402
403(defcustom gnus-summary-ignore-duplicates nil
404 "*If non-nil, ignore articles with identical Message-ID headers."
405 :group 'gnus-summary
406 :type 'boolean)
6748645f 407
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408(defcustom gnus-single-article-buffer t
409 "*If non-nil, display all articles in the same buffer.
410If nil, each group will get its own article buffer."
411 :group 'gnus-article-various
412 :type 'boolean)
413
414(defcustom gnus-break-pages t
415 "*If non-nil, do page breaking on articles.
416The page delimiter is specified by the `gnus-page-delimiter'
417variable."
418 :group 'gnus-article-various
419 :type 'boolean)
420
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421(defcustom gnus-move-split-methods nil
422 "*Variable used to suggest where articles are to be moved to.
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423It uses the same syntax as the `gnus-split-methods' variable.
424However, whereas `gnus-split-methods' specifies file names as targets,
425this variable specifies group names."
eec82323 426 :group 'gnus-summary-mail
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427 :type '(repeat (choice (list :value (fun) function)
428 (cons :value ("" "") regexp (repeat string))
429 (sexp :value nil))))
eec82323 430
23f87bed 431(defcustom gnus-unread-mark ? ;Whitespace
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432 "*Mark used for unread articles."
433 :group 'gnus-summary-marks
434 :type 'character)
435
436(defcustom gnus-ticked-mark ?!
437 "*Mark used for ticked articles."
438 :group 'gnus-summary-marks
439 :type 'character)
440
441(defcustom gnus-dormant-mark ??
442 "*Mark used for dormant articles."
443 :group 'gnus-summary-marks
444 :type 'character)
445
446(defcustom gnus-del-mark ?r
447 "*Mark used for del'd articles."
448 :group 'gnus-summary-marks
449 :type 'character)
450
451(defcustom gnus-read-mark ?R
452 "*Mark used for read articles."
453 :group 'gnus-summary-marks
454 :type 'character)
455
456(defcustom gnus-expirable-mark ?E
457 "*Mark used for expirable articles."
458 :group 'gnus-summary-marks
459 :type 'character)
460
461(defcustom gnus-killed-mark ?K
462 "*Mark used for killed articles."
463 :group 'gnus-summary-marks
464 :type 'character)
465
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466(defcustom gnus-spam-mark ?$
467 "*Mark used for spam articles."
468 :group 'gnus-summary-marks
469 :type 'character)
470
eec82323 471(defcustom gnus-souped-mark ?F
23f87bed 472 "*Mark used for souped articles."
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473 :group 'gnus-summary-marks
474 :type 'character)
475
476(defcustom gnus-kill-file-mark ?X
477 "*Mark used for articles killed by kill files."
478 :group 'gnus-summary-marks
479 :type 'character)
480
481(defcustom gnus-low-score-mark ?Y
482 "*Mark used for articles with a low score."
483 :group 'gnus-summary-marks
484 :type 'character)
485
486(defcustom gnus-catchup-mark ?C
487 "*Mark used for articles that are caught up."
488 :group 'gnus-summary-marks
489 :type 'character)
490
491(defcustom gnus-replied-mark ?A
492 "*Mark used for articles that have been replied to."
493 :group 'gnus-summary-marks
494 :type 'character)
495
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496(defcustom gnus-forwarded-mark ?F
497 "*Mark used for articles that have been forwarded."
a08b59c9 498 :version "21.4"
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499 :group 'gnus-summary-marks
500 :type 'character)
501
502(defcustom gnus-recent-mark ?N
503 "*Mark used for articles that are recent."
504 :group 'gnus-summary-marks
505 :type 'character)
506
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507(defcustom gnus-cached-mark ?*
508 "*Mark used for articles that are in the cache."
509 :group 'gnus-summary-marks
510 :type 'character)
511
512(defcustom gnus-saved-mark ?S
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513 "*Mark used for articles that have been saved."
514 :group 'gnus-summary-marks
515 :type 'character)
516
517(defcustom gnus-unseen-mark ?.
518 "*Mark used for articles that haven't been seen."
a08b59c9 519 :version "21.4"
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520 :group 'gnus-summary-marks
521 :type 'character)
522
523(defcustom gnus-no-mark ? ;Whitespace
524 "*Mark used for articles that have no other secondary mark."
a08b59c9 525 :version "21.4"
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526 :group 'gnus-summary-marks
527 :type 'character)
528
529(defcustom gnus-ancient-mark ?O
530 "*Mark used for ancient articles."
531 :group 'gnus-summary-marks
532 :type 'character)
533
534(defcustom gnus-sparse-mark ?Q
535 "*Mark used for sparsely reffed articles."
536 :group 'gnus-summary-marks
537 :type 'character)
538
539(defcustom gnus-canceled-mark ?G
540 "*Mark used for canceled articles."
541 :group 'gnus-summary-marks
542 :type 'character)
543
544(defcustom gnus-duplicate-mark ?M
545 "*Mark used for duplicate articles."
546 :group 'gnus-summary-marks
547 :type 'character)
548
23f87bed 549(defcustom gnus-undownloaded-mark ?-
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550 "*Mark used for articles that weren't downloaded."
551 :group 'gnus-summary-marks
552 :type 'character)
553
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554(defcustom gnus-downloaded-mark ?+
555 "*Mark used for articles that were downloaded."
556 :group 'gnus-summary-marks
557 :type 'character)
558
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559(defcustom gnus-downloadable-mark ?%
560 "*Mark used for articles that are to be downloaded."
561 :group 'gnus-summary-marks
562 :type 'character)
563
564(defcustom gnus-unsendable-mark ?=
565 "*Mark used for articles that won't be sent."
566 :group 'gnus-summary-marks
567 :type 'character)
568
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569(defcustom gnus-score-over-mark ?+
570 "*Score mark used for articles with high scores."
571 :group 'gnus-summary-marks
572 :type 'character)
573
574(defcustom gnus-score-below-mark ?-
575 "*Score mark used for articles with low scores."
576 :group 'gnus-summary-marks
577 :type 'character)
578
23f87bed 579(defcustom gnus-empty-thread-mark ? ;Whitespace
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580 "*There is no thread under the article."
581 :group 'gnus-summary-marks
582 :type 'character)
583
584(defcustom gnus-not-empty-thread-mark ?=
585 "*There is a thread under the article."
586 :group 'gnus-summary-marks
587 :type 'character)
588
589(defcustom gnus-view-pseudo-asynchronously nil
590 "*If non-nil, Gnus will view pseudo-articles asynchronously."
591 :group 'gnus-extract-view
592 :type 'boolean)
593
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594(defcustom gnus-auto-expirable-marks
595 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
596 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
597 gnus-souped-mark gnus-duplicate-mark)
598 "*The list of marks converted into expiration if a group is auto-expirable."
58e39d05 599 :version "21.1"
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600 :group 'gnus-summary
601 :type '(repeat character))
602
603(defcustom gnus-inhibit-user-auto-expire t
604 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 605 :version "21.1"
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606 :group 'gnus-summary
607 :type 'boolean)
608
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609(defcustom gnus-view-pseudos nil
610 "*If `automatic', pseudo-articles will be viewed automatically.
611If `not-confirm', pseudos will be viewed automatically, and the user
612will not be asked to confirm the command."
613 :group 'gnus-extract-view
614 :type '(choice (const :tag "off" nil)
615 (const automatic)
616 (const not-confirm)))
617
618(defcustom gnus-view-pseudos-separately t
619 "*If non-nil, one pseudo-article will be created for each file to be viewed.
620If nil, all files that use the same viewing command will be given as a
621list of parameters to that command."
622 :group 'gnus-extract-view
623 :type 'boolean)
624
625(defcustom gnus-insert-pseudo-articles t
626 "*If non-nil, insert pseudo-articles when decoding articles."
627 :group 'gnus-extract-view
628 :type 'boolean)
629
630(defcustom gnus-summary-dummy-line-format
23f87bed 631 " %(: :%) %S\n"
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632 "*The format specification for the dummy roots in the summary buffer.
633It works along the same lines as a normal formatting string,
634with some simple extensions.
635
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636%S The subject
637
638General format specifiers can also be used.
639See `(gnus)Formatting Variables'."
640 :link '(custom-manual "(gnus)Formatting Variables")
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641 :group 'gnus-threading
642 :type 'string)
643
16409b0b 644(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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645 "*The format specification for the summary mode line.
646It works along the same lines as a normal formatting string,
647with some simple extensions:
648
649%G Group name
650%p Unprefixed group name
651%A Current article number
6748645f 652%z Current article score
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653%V Gnus version
654%U Number of unread articles in the group
655%e Number of unselected articles in the group
656%Z A string with unread/unselected article counts
657%g Shortish group name
658%S Subject of the current article
659%u User-defined spec
660%s Current score file name
661%d Number of dormant articles
662%r Number of articles that have been marked as read in this session
663%E Number of articles expunged by the score files"
664 :group 'gnus-summary-format
665 :type 'string)
666
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667(defcustom gnus-list-identifiers nil
668 "Regexp that matches list identifiers to be removed from subject.
669This can also be a list of regexps."
58e39d05 670 :version "21.1"
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671 :group 'gnus-summary-format
672 :group 'gnus-article-hiding
673 :type '(choice (const :tag "none" nil)
674 (regexp :value ".*")
675 (repeat :value (".*") regexp)))
676
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677(defcustom gnus-summary-mark-below 0
678 "*Mark all articles with a score below this variable as read.
679This variable is local to each summary buffer and usually set by the
680score file."
681 :group 'gnus-score-default
682 :type 'integer)
683
684(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
685 "*List of functions used for sorting articles in the summary buffer.
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686
687Each function takes two articles and returns non-nil if the first
688article should be sorted before the other. If you use more than one
689function, the primary sort function should be the last. You should
690probably always include `gnus-article-sort-by-number' in the list of
691sorting functions -- preferably first. Also note that sorting by date
692is often much slower than sorting by number, and the sorting order is
693very similar. (Sorting by date means sorting by the time the message
694was sent, sorting by number means sorting by arrival time.)
695
696Ready-made functions include `gnus-article-sort-by-number',
697`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
698`gnus-article-sort-by-date', `gnus-article-sort-by-random'
699and `gnus-article-sort-by-score'.
700
701When threading is turned on, the variable `gnus-thread-sort-functions'
702controls how articles are sorted."
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703 :group 'gnus-summary-sort
704 :type '(repeat (choice (function-item gnus-article-sort-by-number)
705 (function-item gnus-article-sort-by-author)
706 (function-item gnus-article-sort-by-subject)
707 (function-item gnus-article-sort-by-date)
708 (function-item gnus-article-sort-by-score)
23f87bed 709 (function-item gnus-article-sort-by-random)
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710 (function :tag "other"))))
711
712(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
713 "*List of functions used for sorting threads in the summary buffer.
714By default, threads are sorted by article number.
715
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716Each function takes two threads and returns non-nil if the first
717thread should be sorted before the other. If you use more than one
718function, the primary sort function should be the last. You should
719probably always include `gnus-thread-sort-by-number' in the list of
720sorting functions -- preferably first. Also note that sorting by date
721is often much slower than sorting by number, and the sorting order is
722very similar. (Sorting by date means sorting by the time the message
723was sent, sorting by number means sorting by arrival time.)
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724
725Ready-made functions include `gnus-thread-sort-by-number',
726`gnus-thread-sort-by-author', `gnus-thread-sort-by-subject',
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727`gnus-thread-sort-by-date', `gnus-thread-sort-by-score',
728`gnus-thread-sort-by-most-recent-number',
729`gnus-thread-sort-by-most-recent-date',
730`gnus-thread-sort-by-random', and
731`gnus-thread-sort-by-total-score' (see `gnus-thread-score-function').
732
733When threading is turned off, the variable
734`gnus-article-sort-functions' controls how articles are sorted."
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735 :group 'gnus-summary-sort
736 :type '(repeat (choice (function-item gnus-thread-sort-by-number)
737 (function-item gnus-thread-sort-by-author)
738 (function-item gnus-thread-sort-by-subject)
739 (function-item gnus-thread-sort-by-date)
740 (function-item gnus-thread-sort-by-score)
741 (function-item gnus-thread-sort-by-total-score)
23f87bed 742 (function-item gnus-thread-sort-by-random)
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743 (function :tag "other"))))
744
745(defcustom gnus-thread-score-function '+
746 "*Function used for calculating the total score of a thread.
747
748The function is called with the scores of the article and each
749subthread and should then return the score of the thread.
750
751Some functions you can use are `+', `max', or `min'."
752 :group 'gnus-summary-sort
753 :type 'function)
754
755(defcustom gnus-summary-expunge-below nil
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756 "All articles that have a score less than this variable will be expunged.
757This variable is local to the summary buffers."
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758 :group 'gnus-score-default
759 :type '(choice (const :tag "off" nil)
760 integer))
761
762(defcustom gnus-thread-expunge-below nil
763 "All threads that have a total score less than this variable will be expunged.
764See `gnus-thread-score-function' for en explanation of what a
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765\"thread score\" is.
766
767This variable is local to the summary buffers."
16409b0b 768 :group 'gnus-threading
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769 :group 'gnus-score-default
770 :type '(choice (const :tag "off" nil)
771 integer))
772
773(defcustom gnus-summary-mode-hook nil
774 "*A hook for Gnus summary mode.
775This hook is run before any variables are set in the summary buffer."
23f87bed 776 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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777 :group 'gnus-summary-various
778 :type 'hook)
779
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780;; Extracted from gnus-xmas-redefine in order to preserve user settings
781(when (featurep 'xemacs)
782 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
783 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
784 (add-hook 'gnus-summary-mode-hook
785 'gnus-xmas-switch-horizontal-scrollbar-off))
786
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787(defcustom gnus-summary-menu-hook nil
788 "*Hook run after the creation of the summary mode menu."
789 :group 'gnus-summary-visual
790 :type 'hook)
791
792(defcustom gnus-summary-exit-hook nil
793 "*A hook called on exit from the summary buffer.
794It will be called with point in the group buffer."
795 :group 'gnus-summary-exit
796 :type 'hook)
797
798(defcustom gnus-summary-prepare-hook nil
799 "*A hook called after the summary buffer has been generated.
800If you want to modify the summary buffer, you can use this hook."
801 :group 'gnus-summary-various
802 :type 'hook)
803
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804(defcustom gnus-summary-prepared-hook nil
805 "*A hook called as the last thing after the summary buffer has been generated."
806 :group 'gnus-summary-various
807 :type 'hook)
808
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809(defcustom gnus-summary-generate-hook nil
810 "*A hook run just before generating the summary buffer.
811This hook is commonly used to customize threading variables and the
812like."
813 :group 'gnus-summary-various
814 :type 'hook)
815
816(defcustom gnus-select-group-hook nil
817 "*A hook called when a newsgroup is selected.
818
819If you'd like to simplify subjects like the
820`gnus-summary-next-same-subject' command does, you can use the
821following hook:
822
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823 (add-hook gnus-select-group-hook
824 (lambda ()
825 (mapcar (lambda (header)
826 (mail-header-set-subject
827 header
828 (gnus-simplify-subject
829 (mail-header-subject header) 're-only)))
830 gnus-newsgroup-headers)))"
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831 :group 'gnus-group-select
832 :type 'hook)
833
834(defcustom gnus-select-article-hook nil
835 "*A hook called when an article is selected."
836 :group 'gnus-summary-choose
23f87bed 837 :options '(gnus-agent-fetch-selected-article)
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838 :type 'hook)
839
840(defcustom gnus-visual-mark-article-hook
841 (list 'gnus-highlight-selected-summary)
842 "*Hook run after selecting an article in the summary buffer.
843It is meant to be used for highlighting the article in some way. It
844is not run if `gnus-visual' is nil."
845 :group 'gnus-summary-visual
846 :type 'hook)
847
16409b0b 848(defcustom gnus-parse-headers-hook nil
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849 "*A hook called before parsing the headers."
850 :group 'gnus-various
851 :type 'hook)
852
853(defcustom gnus-exit-group-hook nil
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854 "*A hook called when exiting summary mode.
855This hook is not called from the non-updating exit commands like `Q'."
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856 :group 'gnus-various
857 :type 'hook)
858
859(defcustom gnus-summary-update-hook
860 (list 'gnus-summary-highlight-line)
861 "*A hook called when a summary line is changed.
862The hook will not be called if `gnus-visual' is nil.
863
864The default function `gnus-summary-highlight-line' will
865highlight the line according to the `gnus-summary-highlight'
866variable."
867 :group 'gnus-summary-visual
868 :type 'hook)
869
870(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
871 "*A hook called when an article is selected for the first time.
872The hook is intended to mark an article as read (or unread)
873automatically when it is selected."
874 :group 'gnus-summary-choose
875 :type 'hook)
876
877(defcustom gnus-group-no-more-groups-hook nil
878 "*A hook run when returning to group mode having no more (unread) groups."
879 :group 'gnus-group-select
880 :type 'hook)
881
882(defcustom gnus-ps-print-hook nil
883 "*A hook run before ps-printing something from Gnus."
884 :group 'gnus-summary
885 :type 'hook)
886
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887(defcustom gnus-summary-article-move-hook nil
888 "*A hook called after an article is moved, copied, respooled, or crossposted."
889 :group 'gnus-summary
890 :type 'hook)
891
892(defcustom gnus-summary-article-delete-hook nil
893 "*A hook called after an article is deleted."
894 :group 'gnus-summary
895 :type 'hook)
896
897(defcustom gnus-summary-article-expire-hook nil
898 "*A hook called after an article is expired."
899 :group 'gnus-summary
900 :type 'hook)
901
902(defcustom gnus-summary-display-arrow
903 (and (fboundp 'display-graphic-p)
904 (display-graphic-p))
905 "*If non-nil, display an arrow highlighting the current article."
a08b59c9 906 :version "21.4"
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907 :group 'gnus-summary
908 :type 'boolean)
909
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910(defcustom gnus-summary-selected-face 'gnus-summary-selected-face
911 "Face used for highlighting the current article in the summary buffer."
912 :group 'gnus-summary-visual
913 :type 'face)
914
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915(defvar gnus-tmp-downloaded nil)
916
eec82323 917(defcustom gnus-summary-highlight
23f87bed 918 '(((eq mark gnus-canceled-mark)
eec82323 919 . gnus-summary-cancelled-face)
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920 ((and uncached (> score default-high))
921 . gnus-summary-high-undownloaded-face)
922 ((and uncached (< score default-low))
923 . gnus-summary-low-undownloaded-face)
924 (uncached
925 . gnus-summary-normal-undownloaded-face)
926 ((and (> score default-high)
927 (or (eq mark gnus-dormant-mark)
928 (eq mark gnus-ticked-mark)))
eec82323 929 . gnus-summary-high-ticked-face)
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930 ((and (< score default-low)
931 (or (eq mark gnus-dormant-mark)
932 (eq mark gnus-ticked-mark)))
eec82323 933 . gnus-summary-low-ticked-face)
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934 ((or (eq mark gnus-dormant-mark)
935 (eq mark gnus-ticked-mark))
eec82323 936 . gnus-summary-normal-ticked-face)
23f87bed 937 ((and (> score default-high) (eq mark gnus-ancient-mark))
eec82323 938 . gnus-summary-high-ancient-face)
23f87bed 939 ((and (< score default-low) (eq mark gnus-ancient-mark))
eec82323 940 . gnus-summary-low-ancient-face)
23f87bed 941 ((eq mark gnus-ancient-mark)
eec82323 942 . gnus-summary-normal-ancient-face)
23f87bed 943 ((and (> score default-high) (eq mark gnus-unread-mark))
eec82323 944 . gnus-summary-high-unread-face)
23f87bed 945 ((and (< score default-low) (eq mark gnus-unread-mark))
eec82323 946 . gnus-summary-low-unread-face)
23f87bed 947 ((eq mark gnus-unread-mark)
6748645f 948 . gnus-summary-normal-unread-face)
23f87bed 949 ((> score default-high)
eec82323 950 . gnus-summary-high-read-face)
23f87bed 951 ((< score default-low)
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952 . gnus-summary-low-read-face)
953 (t
954 . gnus-summary-normal-read-face))
6748645f 955 "*Controls the highlighting of summary buffer lines.
eec82323 956
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957A list of (FORM . FACE) pairs. When deciding how a a particular
958summary line should be displayed, each form is evaluated. The content
959of the face field after the first true form is used. You can change
960how those summary lines are displayed, by editing the face field.
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961
962You can use the following variables in the FORM field.
963
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964score: The article's score
965default: The default article score.
966default-high: The default score for high scored articles.
967default-low: The default score for low scored articles.
968below: The score below which articles are automatically marked as read.
969mark: The article's mark.
970uncached: Non-nil if the article is uncached."
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971 :group 'gnus-summary-visual
972 :type '(repeat (cons (sexp :tag "Form" nil)
973 face)))
974
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975(defcustom gnus-alter-header-function nil
976 "Function called to allow alteration of article header structures.
977The function is called with one parameter, the article header vector,
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978which it may alter in any way."
979 :type '(choice (const :tag "None" nil)
980 function)
981 :group 'gnus-summary)
eec82323 982
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983(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
984 "Variable that says which function should be used to decode a string with encoded words.")
985
23f87bed 986(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 987 "*Extra headers to parse."
58e39d05 988 :version "21.1"
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989 :group 'gnus-summary
990 :type '(repeat symbol))
991
992(defcustom gnus-ignored-from-addresses
993 (and user-mail-address (regexp-quote user-mail-address))
994 "*Regexp of From headers that may be suppressed in favor of To headers."
58e39d05 995 :version "21.1"
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996 :group 'gnus-summary
997 :type 'regexp)
998
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999(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1000 "List of charsets that should be ignored.
1001When these charsets are used in the \"charset\" parameter, the
1002default charset will be used instead."
58e39d05 1003 :version "21.1"
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1004 :type '(repeat symbol)
1005 :group 'gnus-charset)
1006
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1007(gnus-define-group-parameter
1008 ignored-charsets
1009 :type list
1010 :function-document
1011 "Return the ignored charsets of GROUP."
1012 :variable gnus-group-ignored-charsets-alist
1013 :variable-default
1014 '(("alt\\.chinese\\.text" iso-8859-1))
1015 :variable-document
1016 "Alist of regexps (to match group names) and charsets that should be ignored.
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1017When these charsets are used in the \"charset\" parameter, the
1018default charset will be used instead."
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1019 :variable-group gnus-charset
1020 :variable-type '(repeat (cons (regexp :tag "Group")
1021 (repeat symbol)))
1022 :parameter-type '(choice :tag "Ignored charsets"
1023 :value nil
1024 (repeat (symbol)))
1025 :parameter-document "\
1026List of charsets that should be ignored.
1027
1028When these charsets are used in the \"charset\" parameter, the
1029default charset will be used instead.")
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1030
1031(defcustom gnus-group-highlight-words-alist nil
1032 "Alist of group regexps and highlight regexps.
1033This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1034 :version "21.1"
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1035 :type '(repeat (cons (regexp :tag "Group")
1036 (repeat (list (regexp :tag "Highlight regexp")
1037 (number :tag "Group for entire word" 0)
1038 (number :tag "Group for displayed part" 0)
1039 (symbol :tag "Face"
1040 gnus-emphasis-highlight-words)))))
1041 :group 'gnus-summary-visual)
1042
1043(defcustom gnus-summary-show-article-charset-alist
1044 nil
1045 "Alist of number and charset.
1046The article will be shown with the charset corresponding to the
1047numbered argument.
1048For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1049 :version "21.1"
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1050 :type '(repeat (cons (number :tag "Argument" 1)
1051 (symbol :tag "Charset")))
1052 :group 'gnus-charset)
1053
1054(defcustom gnus-preserve-marks t
1055 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1056 :version "21.1"
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1057 :type 'boolean
1058 :group 'gnus-summary-marks)
1059
1060(defcustom gnus-alter-articles-to-read-function nil
1061 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1062 :type '(choice (const nil) function)
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1063 :group 'gnus-summary)
1064
1065(defcustom gnus-orphan-score nil
1066 "*All orphans get this score added. Set in the score file."
1067 :group 'gnus-score-default
1068 :type '(choice (const nil)
1069 integer))
1070
8b93df01 1071(defcustom gnus-summary-save-parts-default-mime "image/.*"
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1072 "*A regexp to match MIME parts when saving multiple parts of a
1073message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1074This regexp will be used by default when prompting the user for which
1075type of files to save."
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1076 :group 'gnus-summary
1077 :type 'regexp)
1078
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1079(defcustom gnus-read-all-available-headers nil
1080 "Whether Gnus should parse all headers made available to it.
1081This is mostly relevant for slow back ends where the user may
1082wish to widen the summary buffer to include all headers
1083that were fetched. Say, for nnultimate groups."
a08b59c9 1084 :version "21.4"
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1085 :group 'gnus-summary
1086 :type '(choice boolean regexp))
1087
1088(defcustom gnus-summary-muttprint-program "muttprint"
1089 "Command (and optional arguments) used to run Muttprint."
a08b59c9 1090 :version "21.4"
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1091 :group 'gnus-summary
1092 :type 'string)
1093
1094(defcustom gnus-article-loose-mime nil
1095 "If non-nil, don't require MIME-Version header.
1096Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1097supply the MIME-Version header or deliberately strip it from the mail.
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1098Set it to non-nil, Gnus will treat some articles as MIME even if
1099the MIME-Version header is missed."
a08b59c9 1100 :version "21.4"
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1101 :type 'boolean
1102 :group 'gnus-article-mime)
1103
1104(defcustom gnus-article-emulate-mime t
1105 "If non-nil, use MIME emulation for uuencode and the like.
1106This means that Gnus will search message bodies for text that look
1107like uuencoded bits, yEncoded bits, and so on, and present that using
1108the normal Gnus MIME machinery."
a08b59c9 1109 :version "21.4"
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1110 :type 'boolean
1111 :group 'gnus-article-mime)
8b93df01 1112
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1113;;; Internal variables
1114
23f87bed 1115(defvar gnus-summary-display-cache nil)
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1116(defvar gnus-article-mime-handles nil)
1117(defvar gnus-article-decoded-p nil)
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1118(defvar gnus-article-charset nil)
1119(defvar gnus-article-ignored-charsets nil)
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1120(defvar gnus-scores-exclude-files nil)
1121(defvar gnus-page-broken nil)
1122
1123(defvar gnus-original-article nil)
1124(defvar gnus-article-internal-prepare-hook nil)
1125(defvar gnus-newsgroup-process-stack nil)
1126
1127(defvar gnus-thread-indent-array nil)
1128(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
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1129(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1130 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1131
8b93df01 1132(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1133(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1134
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LMI
1135;; Avoid highlighting in kill files.
1136(defvar gnus-summary-inhibit-highlight nil)
1137(defvar gnus-newsgroup-selected-overlay nil)
1138(defvar gnus-inhibit-limiting nil)
1139(defvar gnus-newsgroup-adaptive-score-file nil)
1140(defvar gnus-current-score-file nil)
1141(defvar gnus-current-move-group nil)
1142(defvar gnus-current-copy-group nil)
1143(defvar gnus-current-crosspost-group nil)
23f87bed 1144(defvar gnus-newsgroup-display nil)
eec82323
LMI
1145
1146(defvar gnus-newsgroup-dependencies nil)
1147(defvar gnus-newsgroup-adaptive nil)
1148(defvar gnus-summary-display-article-function nil)
1149(defvar gnus-summary-highlight-line-function nil
1150 "Function called after highlighting a summary line.")
1151
1152(defvar gnus-summary-line-format-alist
1153 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1154 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1155 (?s gnus-tmp-subject-or-nil ?s)
1156 (?n gnus-tmp-name ?s)
1157 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1158 ?s)
1159 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1160 gnus-tmp-from) ?s)
1161 (?F gnus-tmp-from ?s)
1162 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1163 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1164 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1165 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
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1166 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1167 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1168 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1169 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1170 (?L gnus-tmp-lines ?s)
1171 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1172 (?I gnus-tmp-indentation ?s)
1173 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1174 (?R gnus-tmp-replied ?c)
1175 (?\[ gnus-tmp-opening-bracket ?c)
1176 (?\] gnus-tmp-closing-bracket ?c)
1177 (?\> (make-string gnus-tmp-level ? ) ?s)
1178 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1179 (?i gnus-tmp-score ?d)
1180 (?z gnus-tmp-score-char ?c)
1181 (?l (bbb-grouplens-score gnus-tmp-header) ?s)
1182 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1183 (?U gnus-tmp-unread ?c)
23f87bed
MB
1184 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1185 ?s)
eec82323
LMI
1186 (?t (gnus-summary-number-of-articles-in-thread
1187 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1188 ?d)
1189 (?e (gnus-summary-number-of-articles-in-thread
1190 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1191 ?c)
1192 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1193 (?P (gnus-pick-line-number) ?d)
1194 (?B gnus-tmp-thread-tree-header-string ?s)
1195 (user-date (gnus-user-date
1196 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1197 "An alist of format specifications that can appear in summary lines.
1198These are paired with what variables they correspond with, along with
1199the type of the variable (string, integer, character, etc).")
eec82323
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1200
1201(defvar gnus-summary-dummy-line-format-alist
1202 `((?S gnus-tmp-subject ?s)
1203 (?N gnus-tmp-number ?d)
1204 (?u gnus-tmp-user-defined ?s)))
1205
1206(defvar gnus-summary-mode-line-format-alist
1207 `((?G gnus-tmp-group-name ?s)
1208 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1209 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1210 (?A gnus-tmp-article-number ?d)
1211 (?Z gnus-tmp-unread-and-unselected ?s)
1212 (?V gnus-version ?s)
1213 (?U gnus-tmp-unread-and-unticked ?d)
1214 (?S gnus-tmp-subject ?s)
1215 (?e gnus-tmp-unselected ?d)
1216 (?u gnus-tmp-user-defined ?s)
1217 (?d (length gnus-newsgroup-dormant) ?d)
1218 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1219 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1220 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1221 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
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LMI
1222 (?E gnus-newsgroup-expunged-tally ?d)
1223 (?s (gnus-current-score-file-nondirectory) ?s)))
1224
1225(defvar gnus-last-search-regexp nil
1226 "Default regexp for article search command.")
1227
1228(defvar gnus-last-shell-command nil
1229 "Default shell command on article.")
1230
23f87bed
MB
1231(defvar gnus-newsgroup-agentized nil
1232 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1233(defvar gnus-newsgroup-begin nil)
1234(defvar gnus-newsgroup-end nil)
1235(defvar gnus-newsgroup-last-rmail nil)
1236(defvar gnus-newsgroup-last-mail nil)
1237(defvar gnus-newsgroup-last-folder nil)
1238(defvar gnus-newsgroup-last-file nil)
1239(defvar gnus-newsgroup-auto-expire nil)
1240(defvar gnus-newsgroup-active nil)
1241
1242(defvar gnus-newsgroup-data nil)
1243(defvar gnus-newsgroup-data-reverse nil)
1244(defvar gnus-newsgroup-limit nil)
1245(defvar gnus-newsgroup-limits nil)
23f87bed 1246(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
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1247
1248(defvar gnus-newsgroup-unreads nil
23f87bed 1249 "Sorted list of unread articles in the current newsgroup.")
eec82323
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1250
1251(defvar gnus-newsgroup-unselected nil
23f87bed 1252 "Sorted list of unselected unread articles in the current newsgroup.")
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1253
1254(defvar gnus-newsgroup-reads nil
1255 "Alist of read articles and article marks in the current newsgroup.")
1256
1257(defvar gnus-newsgroup-expunged-tally nil)
1258
1259(defvar gnus-newsgroup-marked nil
23f87bed
MB
1260 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1261
1262(defvar gnus-newsgroup-spam-marked nil
1263 "List of ranges of articles that have been marked as spam.")
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1264
1265(defvar gnus-newsgroup-killed nil
1266 "List of ranges of articles that have been through the scoring process.")
1267
1268(defvar gnus-newsgroup-cached nil
23f87bed 1269 "Sorted list of articles that come from the article cache.")
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1270
1271(defvar gnus-newsgroup-saved nil
1272 "List of articles that have been saved.")
1273
1274(defvar gnus-newsgroup-kill-headers nil)
1275
1276(defvar gnus-newsgroup-replied nil
1277 "List of articles that have been replied to in the current newsgroup.")
1278
23f87bed
MB
1279(defvar gnus-newsgroup-forwarded nil
1280 "List of articles that have been forwarded in the current newsgroup.")
1281
1282(defvar gnus-newsgroup-recent nil
1283 "List of articles that have are recent in the current newsgroup.")
1284
eec82323 1285(defvar gnus-newsgroup-expirable nil
23f87bed 1286 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
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1287
1288(defvar gnus-newsgroup-processable nil
1289 "List of articles in the current newsgroup that can be processed.")
1290
6748645f 1291(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1292 "Sorted list of articles in the current newsgroup that can be processed.")
1293
1294(defvar gnus-newsgroup-unfetched nil
1295 "Sorted list of articles in the current newsgroup whose headers have
1296not been fetched into the agent.
1297
1298This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1299
1300(defvar gnus-newsgroup-undownloaded nil
23f87bed 1301 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1302
1303(defvar gnus-newsgroup-unsendable nil
1304 "List of articles in the current newsgroup that won't be sent.")
1305
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1306(defvar gnus-newsgroup-bookmarks nil
1307 "List of articles in the current newsgroup that have bookmarks.")
1308
1309(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1310 "Sorted list of dormant articles in the current newsgroup.")
1311
1312(defvar gnus-newsgroup-unseen nil
1313 "List of unseen articles in the current newsgroup.")
1314
1315(defvar gnus-newsgroup-seen nil
1316 "Range of seen articles in the current newsgroup.")
1317
1318(defvar gnus-newsgroup-articles nil
1319 "List of articles in the current newsgroup.")
eec82323
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1320
1321(defvar gnus-newsgroup-scored nil
1322 "List of scored articles in the current newsgroup.")
1323
1324(defvar gnus-newsgroup-headers nil
1325 "List of article headers in the current newsgroup.")
1326
1327(defvar gnus-newsgroup-threads nil)
1328
1329(defvar gnus-newsgroup-prepared nil
1330 "Whether the current group has been prepared properly.")
1331
1332(defvar gnus-newsgroup-ancient nil
1333 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1334
1335(defvar gnus-newsgroup-sparse nil)
1336
1337(defvar gnus-current-article nil)
1338(defvar gnus-article-current nil)
1339(defvar gnus-current-headers nil)
1340(defvar gnus-have-all-headers nil)
1341(defvar gnus-last-article nil)
1342(defvar gnus-newsgroup-history nil)
16409b0b
GM
1343(defvar gnus-newsgroup-charset nil)
1344(defvar gnus-newsgroup-ephemeral-charset nil)
1345(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1346
23f87bed
MB
1347(defvar gnus-article-before-search nil)
1348
1349(defvar gnus-summary-local-variables
eec82323
LMI
1350 '(gnus-newsgroup-name
1351 gnus-newsgroup-begin gnus-newsgroup-end
1352 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1353 gnus-newsgroup-last-folder gnus-newsgroup-last-file
1354 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1355 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1356 gnus-newsgroup-spam-marked
eec82323 1357 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1358 gnus-newsgroup-replied gnus-newsgroup-forwarded
1359 gnus-newsgroup-recent
1360 gnus-newsgroup-expirable
eec82323 1361 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1362 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1363 gnus-newsgroup-unfetched
1364 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1365 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1366 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1367 gnus-newsgroup-headers gnus-newsgroup-threads
1368 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1369 gnus-current-article gnus-current-headers gnus-have-all-headers
1370 gnus-last-article gnus-article-internal-prepare-hook
1371 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1372 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1373 gnus-thread-expunge-below
16409b0b
GM
1374 gnus-score-alist gnus-current-score-file
1375 (gnus-summary-expunge-below . global)
eec82323 1376 (gnus-summary-mark-below . global)
16409b0b 1377 (gnus-orphan-score . global)
eec82323
LMI
1378 gnus-newsgroup-active gnus-scores-exclude-files
1379 gnus-newsgroup-history gnus-newsgroup-ancient
1380 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1381 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1382 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1383 (gnus-newsgroup-expunged-tally . 0)
1384 gnus-cache-removable-articles gnus-newsgroup-cached
1385 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1386 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1387 gnus-newsgroup-charset gnus-newsgroup-display
1388 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1389 "Variables that are buffer-local to the summary buffers.")
1390
23f87bed
MB
1391(defvar gnus-newsgroup-variables nil
1392 "A list of variables that have separate values in different newsgroups.
1393A list of newsgroup (summary buffer) local variables, or cons of
1394variables and their default expressions to be evalled (when the default
1395values are not nil), that should be made global while the summary buffer
1396is active.
1397
1398Note: The default expressions will be evaluated (using function `eval')
1399before assignment to the local variable rather than just assigned to it.
1400If the default expression is the symbol `global', that symbol will not
1401be evaluated but the global value of the local variable will be used
1402instead.
1403
1404These variables can be used to set variables in the group parameters
1405while still allowing them to affect operations done in other buffers.
1406For example:
1407
1408\(setq gnus-newsgroup-variables
1409 '(message-use-followup-to
1410 (gnus-visible-headers .
1411 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1412")
1413
eec82323 1414;; Byte-compiler warning.
23f87bed
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1415(eval-when-compile
1416 ;; Bind features so that require will believe that gnus-sum has
1417 ;; already been loaded (avoids infinite recursion)
1418 (let ((features (cons 'gnus-sum features)))
1419 ;; Several of the declarations in gnus-sum are needed to load the
1420 ;; following files. Right now, these definitions have been
1421 ;; compiled but not defined (evaluated). We could either do a
1422 ;; eval-and-compile about all of the declarations or evaluate the
1423 ;; source file.
1424 (if (boundp 'gnus-newsgroup-variables)
1425 nil
1426 (load "gnus-sum.el" t t t))
1427 (require 'gnus)
1428 (require 'gnus-agent)
1429 (require 'gnus-art)))
eec82323 1430
16409b0b
GM
1431;; MIME stuff.
1432
1433(defvar gnus-decode-encoded-word-methods
1434 '(mail-decode-encoded-word-string)
1435 "List of methods used to decode encoded words.
1436
23f87bed
MB
1437This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1438is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1439\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1440whose names match REGEXP.
1441
1442For example:
23f87bed 1443\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1444 mail-decode-encoded-word-string
1445 (\"chinese\" . rfc1843-decode-string))")
1446
1447(defvar gnus-decode-encoded-word-methods-cache nil)
1448
1449(defun gnus-multi-decode-encoded-word-string (string)
1450 "Apply the functions from `gnus-encoded-word-methods' that match."
1451 (unless (and gnus-decode-encoded-word-methods-cache
1452 (eq gnus-newsgroup-name
1453 (car gnus-decode-encoded-word-methods-cache)))
1454 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
1455 (mapcar (lambda (x)
1456 (if (symbolp x)
1457 (nconc gnus-decode-encoded-word-methods-cache (list x))
1458 (if (and gnus-newsgroup-name
1459 (string-match (car x) gnus-newsgroup-name))
1460 (nconc gnus-decode-encoded-word-methods-cache
1461 (list (cdr x))))))
23f87bed 1462 gnus-decode-encoded-word-methods))
16409b0b
GM
1463 (let ((xlist gnus-decode-encoded-word-methods-cache))
1464 (pop xlist)
1465 (while xlist
1466 (setq string (funcall (pop xlist) string))))
1467 string)
1468
eec82323
LMI
1469;; Subject simplification.
1470
6748645f 1471(defun gnus-simplify-whitespace (str)
16409b0b 1472 "Remove excessive whitespace from STR."
23f87bed
MB
1473 ;; Multiple spaces.
1474 (while (string-match "[ \t][ \t]+" str)
1475 (setq str (concat (substring str 0 (match-beginning 0))
1476 " "
1477 (substring str (match-end 0)))))
1478 ;; Leading spaces.
1479 (when (string-match "^[ \t]+" str)
1480 (setq str (substring str (match-end 0))))
1481 ;; Trailing spaces.
1482 (when (string-match "[ \t]+$" str)
1483 (setq str (substring str 0 (match-beginning 0))))
1484 str)
1485
1486(defun gnus-simplify-all-whitespace (str)
1487 "Remove all whitespace from STR."
1488 (while (string-match "[ \t\n]+" str)
1489 (setq str (replace-match "" nil nil str)))
1490 str)
6748645f 1491
eec82323
LMI
1492(defsubst gnus-simplify-subject-re (subject)
1493 "Remove \"Re:\" from subject lines."
23f87bed 1494 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1495 (substring subject (match-end 0))
1496 subject))
1497
1498(defun gnus-simplify-subject (subject &optional re-only)
1499 "Remove `Re:' and words in parentheses.
1500If RE-ONLY is non-nil, strip leading `Re:'s only."
1501 (let ((case-fold-search t)) ;Ignore case.
1502 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1503 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1504 (setq subject (substring subject (match-end 0))))
1505 ;; Remove uninteresting prefixes.
1506 (when (and (not re-only)
1507 gnus-simplify-ignored-prefixes
1508 (string-match gnus-simplify-ignored-prefixes subject))
1509 (setq subject (substring subject (match-end 0))))
1510 ;; Remove words in parentheses from end.
1511 (unless re-only
1512 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1513 (setq subject (substring subject 0 (match-beginning 0)))))
1514 ;; Return subject string.
1515 subject))
1516
1517;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1518;; all whitespace.
1519(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1520 (goto-char (point-min))
1521 (while (re-search-forward regexp nil t)
16409b0b 1522 (replace-match (or newtext ""))))
eec82323
LMI
1523
1524(defun gnus-simplify-buffer-fuzzy ()
1525 "Simplify string in the buffer fuzzily.
1526The string in the accessible portion of the current buffer is simplified.
1527It is assumed to be a single-line subject.
1528Whitespace is generally cleaned up, and miscellaneous leading/trailing
1529matter is removed. Additional things can be deleted by setting
16409b0b 1530`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1531 (let ((case-fold-search t)
1532 (modified-tick))
1533 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1534
1535 (while (not (eq modified-tick (buffer-modified-tick)))
1536 (setq modified-tick (buffer-modified-tick))
1537 (cond
1538 ((listp gnus-simplify-subject-fuzzy-regexp)
1539 (mapcar 'gnus-simplify-buffer-fuzzy-step
1540 gnus-simplify-subject-fuzzy-regexp))
1541 (gnus-simplify-subject-fuzzy-regexp
1542 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1543 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1544 (gnus-simplify-buffer-fuzzy-step
1545 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1546 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1547
1548 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1549 (gnus-simplify-buffer-fuzzy-step " +" " ")
1550 (gnus-simplify-buffer-fuzzy-step " $")
1551 (gnus-simplify-buffer-fuzzy-step "^ +")))
1552
1553(defun gnus-simplify-subject-fuzzy (subject)
1554 "Simplify a subject string fuzzily.
6748645f 1555See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1556 (save-excursion
1557 (gnus-set-work-buffer)
1558 (let ((case-fold-search t))
6748645f
LMI
1559 ;; Remove uninteresting prefixes.
1560 (when (and gnus-simplify-ignored-prefixes
1561 (string-match gnus-simplify-ignored-prefixes subject))
1562 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1563 (insert subject)
1564 (inline (gnus-simplify-buffer-fuzzy))
1565 (buffer-string))))
1566
1567(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1568 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1569 (cond
6748645f
LMI
1570 (gnus-simplify-subject-functions
1571 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1572 ((null gnus-summary-gather-subject-limit)
1573 (gnus-simplify-subject-re subject))
1574 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1575 (gnus-simplify-subject-fuzzy subject))
1576 ((numberp gnus-summary-gather-subject-limit)
1577 (gnus-limit-string (gnus-simplify-subject-re subject)
1578 gnus-summary-gather-subject-limit))
1579 (t
1580 subject)))
1581
1582(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1583 "Check whether two subjects are equal.
23f87bed 1584If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1585simplified."
eec82323
LMI
1586 (cond
1587 ((null simple-first)
1588 (equal (gnus-simplify-subject-fully s1)
1589 (gnus-simplify-subject-fully s2)))
1590 (t
1591 (equal s1
1592 (gnus-simplify-subject-fully s2)))))
1593
1594(defun gnus-summary-bubble-group ()
1595 "Increase the score of the current group.
1596This is a handy function to add to `gnus-summary-exit-hook' to
1597increase the score of each group you read."
1598 (gnus-group-add-score gnus-newsgroup-name))
1599
1600\f
1601;;;
1602;;; Gnus summary mode
1603;;;
1604
1605(put 'gnus-summary-mode 'mode-class 'special)
1606
1653df0f
SZ
1607(defvar gnus-article-commands-menu)
1608
23f87bed
MB
1609;; Non-orthogonal keys
1610
1611(gnus-define-keys gnus-summary-mode-map
1612 " " gnus-summary-next-page
1613 "\177" gnus-summary-prev-page
1614 [delete] gnus-summary-prev-page
1615 [backspace] gnus-summary-prev-page
1616 "\r" gnus-summary-scroll-up
1617 "\M-\r" gnus-summary-scroll-down
1618 "n" gnus-summary-next-unread-article
1619 "p" gnus-summary-prev-unread-article
1620 "N" gnus-summary-next-article
1621 "P" gnus-summary-prev-article
1622 "\M-\C-n" gnus-summary-next-same-subject
1623 "\M-\C-p" gnus-summary-prev-same-subject
1624 "\M-n" gnus-summary-next-unread-subject
1625 "\M-p" gnus-summary-prev-unread-subject
1626 "." gnus-summary-first-unread-article
1627 "," gnus-summary-best-unread-article
1628 "\M-s" gnus-summary-search-article-forward
1629 "\M-r" gnus-summary-search-article-backward
1630 "<" gnus-summary-beginning-of-article
1631 ">" gnus-summary-end-of-article
1632 "j" gnus-summary-goto-article
1633 "^" gnus-summary-refer-parent-article
1634 "\M-^" gnus-summary-refer-article
1635 "u" gnus-summary-tick-article-forward
1636 "!" gnus-summary-tick-article-forward
1637 "U" gnus-summary-tick-article-backward
1638 "d" gnus-summary-mark-as-read-forward
1639 "D" gnus-summary-mark-as-read-backward
1640 "E" gnus-summary-mark-as-expirable
1641 "\M-u" gnus-summary-clear-mark-forward
1642 "\M-U" gnus-summary-clear-mark-backward
1643 "k" gnus-summary-kill-same-subject-and-select
1644 "\C-k" gnus-summary-kill-same-subject
1645 "\M-\C-k" gnus-summary-kill-thread
1646 "\M-\C-l" gnus-summary-lower-thread
1647 "e" gnus-summary-edit-article
1648 "#" gnus-summary-mark-as-processable
1649 "\M-#" gnus-summary-unmark-as-processable
1650 "\M-\C-t" gnus-summary-toggle-threads
1651 "\M-\C-s" gnus-summary-show-thread
1652 "\M-\C-h" gnus-summary-hide-thread
1653 "\M-\C-f" gnus-summary-next-thread
1654 "\M-\C-b" gnus-summary-prev-thread
1655 [(meta down)] gnus-summary-next-thread
1656 [(meta up)] gnus-summary-prev-thread
1657 "\M-\C-u" gnus-summary-up-thread
1658 "\M-\C-d" gnus-summary-down-thread
1659 "&" gnus-summary-execute-command
1660 "c" gnus-summary-catchup-and-exit
1661 "\C-w" gnus-summary-mark-region-as-read
1662 "\C-t" gnus-summary-toggle-truncation
1663 "?" gnus-summary-mark-as-dormant
1664 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1665 "\C-c\C-s\C-n" gnus-summary-sort-by-number
1666 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1667 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1668 "\C-c\C-s\C-a" gnus-summary-sort-by-author
1669 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1670 "\C-c\C-s\C-d" gnus-summary-sort-by-date
1671 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1672 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1673 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1674 "=" gnus-summary-expand-window
1675 "\C-x\C-s" gnus-summary-reselect-current-group
1676 "\M-g" gnus-summary-rescan-group
1677 "w" gnus-summary-stop-page-breaking
1678 "\C-c\C-r" gnus-summary-caesar-message
1679 "f" gnus-summary-followup
1680 "F" gnus-summary-followup-with-original
1681 "C" gnus-summary-cancel-article
1682 "r" gnus-summary-reply
1683 "R" gnus-summary-reply-with-original
1684 "\C-c\C-f" gnus-summary-mail-forward
1685 "o" gnus-summary-save-article
1686 "\C-o" gnus-summary-save-article-mail
1687 "|" gnus-summary-pipe-output
1688 "\M-k" gnus-summary-edit-local-kill
1689 "\M-K" gnus-summary-edit-global-kill
1690 ;; "V" gnus-version
1691 "\C-c\C-d" gnus-summary-describe-group
1692 "q" gnus-summary-exit
1693 "Q" gnus-summary-exit-no-update
1694 "\C-c\C-i" gnus-info-find-node
1695 gnus-mouse-2 gnus-mouse-pick-article
1696 "m" gnus-summary-mail-other-window
1697 "a" gnus-summary-post-news
1698 "i" gnus-summary-news-other-window
1699 "x" gnus-summary-limit-to-unread
1700 "s" gnus-summary-isearch-article
1701 "t" gnus-summary-toggle-header
1702 "g" gnus-summary-show-article
1703 "l" gnus-summary-goto-last-article
1704 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1705 "\C-d" gnus-summary-enter-digest-group
1706 "\M-\C-d" gnus-summary-read-document
1707 "\M-\C-e" gnus-summary-edit-parameters
1708 "\M-\C-a" gnus-summary-customize-parameters
1709 "\C-c\C-b" gnus-bug
1710 "*" gnus-cache-enter-article
1711 "\M-*" gnus-cache-remove-article
1712 "\M-&" gnus-summary-universal-argument
1713 "\C-l" gnus-recenter
1714 "I" gnus-summary-increase-score
1715 "L" gnus-summary-lower-score
1716 "\M-i" gnus-symbolic-argument
1717 "h" gnus-summary-select-article-buffer
1718
1719 "b" gnus-article-view-part
1720 "\M-t" gnus-summary-toggle-display-buttonized
1721
1722 "V" gnus-summary-score-map
1723 "X" gnus-uu-extract-map
1724 "S" gnus-summary-send-map)
1725
1726;; Sort of orthogonal keymap
1727(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1728 "t" gnus-summary-tick-article-forward
1729 "!" gnus-summary-tick-article-forward
1730 "d" gnus-summary-mark-as-read-forward
1731 "r" gnus-summary-mark-as-read-forward
1732 "c" gnus-summary-clear-mark-forward
1733 " " gnus-summary-clear-mark-forward
1734 "e" gnus-summary-mark-as-expirable
1735 "x" gnus-summary-mark-as-expirable
1736 "?" gnus-summary-mark-as-dormant
1737 "b" gnus-summary-set-bookmark
1738 "B" gnus-summary-remove-bookmark
1739 "#" gnus-summary-mark-as-processable
1740 "\M-#" gnus-summary-unmark-as-processable
1741 "S" gnus-summary-limit-include-expunged
1742 "C" gnus-summary-catchup
1743 "H" gnus-summary-catchup-to-here
1744 "h" gnus-summary-catchup-from-here
1745 "\C-c" gnus-summary-catchup-all
1746 "k" gnus-summary-kill-same-subject-and-select
1747 "K" gnus-summary-kill-same-subject
1748 "P" gnus-uu-mark-map)
1749
1750(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1751 "c" gnus-summary-clear-above
1752 "u" gnus-summary-tick-above
1753 "m" gnus-summary-mark-above
1754 "k" gnus-summary-kill-below)
1755
1756(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1757 "/" gnus-summary-limit-to-subject
1758 "n" gnus-summary-limit-to-articles
1759 "w" gnus-summary-pop-limit
1760 "s" gnus-summary-limit-to-subject
1761 "a" gnus-summary-limit-to-author
1762 "u" gnus-summary-limit-to-unread
1763 "m" gnus-summary-limit-to-marks
1764 "M" gnus-summary-limit-exclude-marks
1765 "v" gnus-summary-limit-to-score
1766 "*" gnus-summary-limit-include-cached
1767 "D" gnus-summary-limit-include-dormant
1768 "T" gnus-summary-limit-include-thread
1769 "d" gnus-summary-limit-exclude-dormant
1770 "t" gnus-summary-limit-to-age
1771 "." gnus-summary-limit-to-unseen
1772 "x" gnus-summary-limit-to-extra
1773 "p" gnus-summary-limit-to-display-predicate
1774 "E" gnus-summary-limit-include-expunged
1775 "c" gnus-summary-limit-exclude-childless-dormant
1776 "C" gnus-summary-limit-mark-excluded-as-read
1777 "o" gnus-summary-insert-old-articles
1778 "N" gnus-summary-insert-new-articles)
1779
1780(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1781 "n" gnus-summary-next-unread-article
1782 "p" gnus-summary-prev-unread-article
1783 "N" gnus-summary-next-article
1784 "P" gnus-summary-prev-article
1785 "\C-n" gnus-summary-next-same-subject
1786 "\C-p" gnus-summary-prev-same-subject
1787 "\M-n" gnus-summary-next-unread-subject
1788 "\M-p" gnus-summary-prev-unread-subject
1789 "f" gnus-summary-first-unread-article
1790 "b" gnus-summary-best-unread-article
1791 "j" gnus-summary-goto-article
1792 "g" gnus-summary-goto-subject
1793 "l" gnus-summary-goto-last-article
1794 "o" gnus-summary-pop-article)
1795
1796(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1797 "k" gnus-summary-kill-thread
1798 "l" gnus-summary-lower-thread
1799 "i" gnus-summary-raise-thread
1800 "T" gnus-summary-toggle-threads
1801 "t" gnus-summary-rethread-current
1802 "^" gnus-summary-reparent-thread
1803 "s" gnus-summary-show-thread
1804 "S" gnus-summary-show-all-threads
1805 "h" gnus-summary-hide-thread
1806 "H" gnus-summary-hide-all-threads
1807 "n" gnus-summary-next-thread
1808 "p" gnus-summary-prev-thread
1809 "u" gnus-summary-up-thread
1810 "o" gnus-summary-top-thread
1811 "d" gnus-summary-down-thread
1812 "#" gnus-uu-mark-thread
1813 "\M-#" gnus-uu-unmark-thread)
1814
1815(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1816 "g" gnus-summary-prepare
1817 "c" gnus-summary-insert-cached-articles
1818 "d" gnus-summary-insert-dormant-articles)
1819
1820(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1821 "c" gnus-summary-catchup-and-exit
1822 "C" gnus-summary-catchup-all-and-exit
1823 "E" gnus-summary-exit-no-update
1824 "Q" gnus-summary-exit
1825 "Z" gnus-summary-exit
1826 "n" gnus-summary-catchup-and-goto-next-group
1827 "R" gnus-summary-reselect-current-group
1828 "G" gnus-summary-rescan-group
1829 "N" gnus-summary-next-group
1830 "s" gnus-summary-save-newsrc
1831 "P" gnus-summary-prev-group)
1832
1833(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
1834 " " gnus-summary-next-page
1835 "n" gnus-summary-next-page
1836 "\177" gnus-summary-prev-page
1837 [delete] gnus-summary-prev-page
1838 "p" gnus-summary-prev-page
1839 "\r" gnus-summary-scroll-up
1840 "\M-\r" gnus-summary-scroll-down
1841 "<" gnus-summary-beginning-of-article
1842 ">" gnus-summary-end-of-article
1843 "b" gnus-summary-beginning-of-article
1844 "e" gnus-summary-end-of-article
1845 "^" gnus-summary-refer-parent-article
1846 "r" gnus-summary-refer-parent-article
1847 "D" gnus-summary-enter-digest-group
1848 "R" gnus-summary-refer-references
1849 "T" gnus-summary-refer-thread
1850 "g" gnus-summary-show-article
1851 "s" gnus-summary-isearch-article
1852 "P" gnus-summary-print-article
1853 "M" gnus-mailing-list-insinuate
1854 "t" gnus-article-babel)
1855
1856(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
1857 "b" gnus-article-add-buttons
1858 "B" gnus-article-add-buttons-to-head
1859 "o" gnus-article-treat-overstrike
1860 "e" gnus-article-emphasize
1861 "w" gnus-article-fill-cited-article
1862 "Q" gnus-article-fill-long-lines
1863 "C" gnus-article-capitalize-sentences
1864 "c" gnus-article-remove-cr
1865 "q" gnus-article-de-quoted-unreadable
1866 "6" gnus-article-de-base64-unreadable
1867 "Z" gnus-article-decode-HZ
1868 "h" gnus-article-wash-html
1869 "u" gnus-article-unsplit-urls
1870 "s" gnus-summary-force-verify-and-decrypt
1871 "f" gnus-article-display-x-face
1872 "l" gnus-summary-stop-page-breaking
1873 "r" gnus-summary-caesar-message
1874 "m" gnus-summary-morse-message
1875 "t" gnus-summary-toggle-header
1876 "g" gnus-treat-smiley
1877 "v" gnus-summary-verbose-headers
1878 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
1879 "p" gnus-article-verify-x-pgp-sig
1880 "d" gnus-article-treat-dumbquotes)
1881
1882(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
1883 ;; mnemonic: deuglif*Y*
1884 "u" gnus-article-outlook-unwrap-lines
1885 "a" gnus-article-outlook-repair-attribution
1886 "c" gnus-article-outlook-rearrange-citation
1887 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
1888
1889(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
1890 "a" gnus-article-hide
1891 "h" gnus-article-hide-headers
1892 "b" gnus-article-hide-boring-headers
1893 "s" gnus-article-hide-signature
1894 "c" gnus-article-hide-citation
1895 "C" gnus-article-hide-citation-in-followups
1896 "l" gnus-article-hide-list-identifiers
1897 "B" gnus-article-strip-banner
1898 "P" gnus-article-hide-pem
1899 "\C-c" gnus-article-hide-citation-maybe)
1900
1901(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
1902 "a" gnus-article-highlight
1903 "h" gnus-article-highlight-headers
1904 "c" gnus-article-highlight-citation
1905 "s" gnus-article-highlight-signature)
1906
1907(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
1908 "f" gnus-article-treat-fold-headers
1909 "u" gnus-article-treat-unfold-headers
1910 "n" gnus-article-treat-fold-newsgroups)
1911
1912(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
1913 "x" gnus-article-display-x-face
1914 "d" gnus-article-display-face
1915 "s" gnus-treat-smiley
1916 "D" gnus-article-remove-images
1917 "f" gnus-treat-from-picon
1918 "m" gnus-treat-mail-picon
1919 "n" gnus-treat-newsgroups-picon)
1920
1921(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
1922 "w" gnus-article-decode-mime-words
1923 "c" gnus-article-decode-charset
1924 "v" gnus-mime-view-all-parts
1925 "b" gnus-article-view-part)
1926
1927(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
1928 "z" gnus-article-date-ut
1929 "u" gnus-article-date-ut
1930 "l" gnus-article-date-local
1931 "p" gnus-article-date-english
1932 "e" gnus-article-date-lapsed
1933 "o" gnus-article-date-original
1934 "i" gnus-article-date-iso8601
1935 "s" gnus-article-date-user)
1936
1937(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
1938 "t" gnus-article-remove-trailing-blank-lines
1939 "l" gnus-article-strip-leading-blank-lines
1940 "m" gnus-article-strip-multiple-blank-lines
1941 "a" gnus-article-strip-blank-lines
1942 "A" gnus-article-strip-all-blank-lines
1943 "s" gnus-article-strip-leading-space
1944 "e" gnus-article-strip-trailing-space
1945 "w" gnus-article-remove-leading-whitespace)
1946
1947(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
1948 "v" gnus-version
1949 "f" gnus-summary-fetch-faq
1950 "d" gnus-summary-describe-group
1951 "h" gnus-summary-describe-briefly
1952 "i" gnus-info-find-node
1953 "c" gnus-group-fetch-charter
1954 "C" gnus-group-fetch-control)
1955
1956(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
1957 "e" gnus-summary-expire-articles
1958 "\M-\C-e" gnus-summary-expire-articles-now
1959 "\177" gnus-summary-delete-article
1960 [delete] gnus-summary-delete-article
1961 [backspace] gnus-summary-delete-article
1962 "m" gnus-summary-move-article
1963 "r" gnus-summary-respool-article
1964 "w" gnus-summary-edit-article
1965 "c" gnus-summary-copy-article
1966 "B" gnus-summary-crosspost-article
1967 "q" gnus-summary-respool-query
1968 "t" gnus-summary-respool-trace
1969 "i" gnus-summary-import-article
1970 "I" gnus-summary-create-article
1971 "p" gnus-summary-article-posted-p)
1972
1973(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
1974 "o" gnus-summary-save-article
1975 "m" gnus-summary-save-article-mail
1976 "F" gnus-summary-write-article-file
1977 "r" gnus-summary-save-article-rmail
1978 "f" gnus-summary-save-article-file
1979 "b" gnus-summary-save-article-body-file
1980 "h" gnus-summary-save-article-folder
1981 "v" gnus-summary-save-article-vm
1982 "p" gnus-summary-pipe-output
1983 "P" gnus-summary-muttprint
1984 "s" gnus-soup-add-article)
1985
1986(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
1987 "b" gnus-summary-display-buttonized
1988 "m" gnus-summary-repair-multipart
1989 "v" gnus-article-view-part
1990 "o" gnus-article-save-part
1991 "c" gnus-article-copy-part
1992 "C" gnus-article-view-part-as-charset
1993 "e" gnus-article-view-part-externally
1994 "E" gnus-article-encrypt-body
1995 "i" gnus-article-inline-part
1996 "|" gnus-article-pipe-part)
1997
1998(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
1999 "p" gnus-summary-mark-as-processable
2000 "u" gnus-summary-unmark-as-processable
2001 "U" gnus-summary-unmark-all-processable
2002 "v" gnus-uu-mark-over
2003 "s" gnus-uu-mark-series
2004 "r" gnus-uu-mark-region
2005 "g" gnus-uu-unmark-region
2006 "R" gnus-uu-mark-by-regexp
2007 "G" gnus-uu-unmark-by-regexp
2008 "t" gnus-uu-mark-thread
2009 "T" gnus-uu-unmark-thread
2010 "a" gnus-uu-mark-all
2011 "b" gnus-uu-mark-buffer
2012 "S" gnus-uu-mark-sparse
2013 "k" gnus-summary-kill-process-mark
2014 "y" gnus-summary-yank-process-mark
2015 "w" gnus-summary-save-process-mark
2016 "i" gnus-uu-invert-processable)
2017
2018(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2019 ;;"x" gnus-uu-extract-any
2020 "m" gnus-summary-save-parts
2021 "u" gnus-uu-decode-uu
2022 "U" gnus-uu-decode-uu-and-save
2023 "s" gnus-uu-decode-unshar
2024 "S" gnus-uu-decode-unshar-and-save
2025 "o" gnus-uu-decode-save
2026 "O" gnus-uu-decode-save
2027 "b" gnus-uu-decode-binhex
2028 "B" gnus-uu-decode-binhex
2029 "p" gnus-uu-decode-postscript
2030 "P" gnus-uu-decode-postscript-and-save)
2031
2032(gnus-define-keys
2033 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2034 "u" gnus-uu-decode-uu-view
2035 "U" gnus-uu-decode-uu-and-save-view
2036 "s" gnus-uu-decode-unshar-view
2037 "S" gnus-uu-decode-unshar-and-save-view
2038 "o" gnus-uu-decode-save-view
2039 "O" gnus-uu-decode-save-view
2040 "b" gnus-uu-decode-binhex-view
2041 "B" gnus-uu-decode-binhex-view
2042 "p" gnus-uu-decode-postscript-view
2043 "P" gnus-uu-decode-postscript-and-save-view)
2044
2045(defvar gnus-article-post-menu nil)
2046
2047(defconst gnus-summary-menu-maxlen 20)
2048
2049(defun gnus-summary-menu-split (menu)
2050 ;; If we have lots of elements, divide them into groups of 20
2051 ;; and make a pane (or submenu) for each one.
2052 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2053 (let ((menu menu) sublists next
2054 (i 1))
2055 (while menu
2056 ;; Pull off the next gnus-summary-menu-maxlen elements
2057 ;; and make them the next element of sublist.
2058 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2059 (if next
2060 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2061 nil))
2062 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2063 (aref (car (last menu)) 0)) menu)
2064 sublists))
2065 (setq i (1+ i))
2066 (setq menu next))
2067 (nreverse sublists))
2068 ;; Few elements--put them all in one pane.
2069 menu))
eec82323
LMI
2070
2071(defun gnus-summary-make-menu-bar ()
2072 (gnus-turn-off-edit-menu 'summary)
2073
2074 (unless (boundp 'gnus-summary-misc-menu)
2075
2076 (easy-menu-define
23f87bed
MB
2077 gnus-summary-kill-menu gnus-summary-mode-map ""
2078 (cons
2079 "Score"
2080 (nconc
2081 (list
2082 ["Customize" gnus-score-customize t])
2083 (gnus-make-score-map 'increase)
2084 (gnus-make-score-map 'lower)
2085 '(("Mark"
2086 ["Kill below" gnus-summary-kill-below t]
2087 ["Mark above" gnus-summary-mark-above t]
2088 ["Tick above" gnus-summary-tick-above t]
2089 ["Clear above" gnus-summary-clear-above t])
2090 ["Current score" gnus-summary-current-score t]
2091 ["Set score" gnus-summary-set-score t]
2092 ["Switch current score file..." gnus-score-change-score-file t]
2093 ["Set mark below..." gnus-score-set-mark-below t]
2094 ["Set expunge below..." gnus-score-set-expunge-below t]
2095 ["Edit current score file" gnus-score-edit-current-scores t]
2096 ["Edit score file" gnus-score-edit-file t]
2097 ["Trace score" gnus-score-find-trace t]
2098 ["Find words" gnus-score-find-favourite-words t]
2099 ["Rescore buffer" gnus-summary-rescore t]
2100 ["Increase score..." gnus-summary-increase-score t]
2101 ["Lower score..." gnus-summary-lower-score t]))))
2102
2103 ;; Define both the Article menu in the summary buffer and the
2104 ;; equivalent Commands menu in the article buffer here for
2105 ;; consistency.
6748645f 2106 (let ((innards
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2107 `(("Hide"
2108 ["All" gnus-article-hide t]
2109 ["Headers" gnus-article-hide-headers t]
2110 ["Signature" gnus-article-hide-signature t]
2111 ["Citation" gnus-article-hide-citation t]
16409b0b 2112 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2113 ["Banner" gnus-article-strip-banner t]
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2114 ["Boring headers" gnus-article-hide-boring-headers t])
2115 ("Highlight"
2116 ["All" gnus-article-highlight t]
2117 ["Headers" gnus-article-highlight-headers t]
2118 ["Signature" gnus-article-highlight-signature t]
2119 ["Citation" gnus-article-highlight-citation t])
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GM
2120 ("MIME"
2121 ["Words" gnus-article-decode-mime-words t]
2122 ["Charset" gnus-article-decode-charset t]
2123 ["QP" gnus-article-de-quoted-unreadable t]
2124 ["Base64" gnus-article-de-base64-unreadable t]
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2125 ["View MIME buttons" gnus-summary-display-buttonized t]
2126 ["View all" gnus-mime-view-all-parts t]
2127 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2128 ["Encrypt body" gnus-article-encrypt-body
2129 :active (not (gnus-group-read-only-p))
2130 ,@(if (featurep 'xemacs) nil
2131 '(:help "Encrypt the message body on disk"))]
2132 ["Extract all parts..." gnus-summary-save-parts t]
2133 ("Multipart"
2134 ["Repair multipart" gnus-summary-repair-multipart t]
2135 ["Pipe part..." gnus-article-pipe-part t]
2136 ["Inline part" gnus-article-inline-part t]
2137 ["Encrypt body" gnus-article-encrypt-body
2138 :active (not (gnus-group-read-only-p))
2139 ,@(if (featurep 'xemacs) nil
2140 '(:help "Encrypt the message body on disk"))]
2141 ["View part externally" gnus-article-view-part-externally t]
2142 ["View part with charset..." gnus-article-view-part-as-charset t]
2143 ["Copy part" gnus-article-copy-part t]
2144 ["Save part..." gnus-article-save-part t]
2145 ["View part" gnus-article-view-part t]))
2146 ("Date"
2147 ["Local" gnus-article-date-local t]
2148 ["ISO8601" gnus-article-date-iso8601 t]
2149 ["UT" gnus-article-date-ut t]
2150 ["Original" gnus-article-date-original t]
2151 ["Lapsed" gnus-article-date-lapsed t]
2152 ["User-defined" gnus-article-date-user t])
2153 ("Display"
2154 ["Remove images" gnus-article-remove-images t]
2155 ["Toggle smiley" gnus-treat-smiley t]
2156 ["Show X-Face" gnus-article-display-x-face t]
2157 ["Show picons in From" gnus-treat-from-picon t]
2158 ["Show picons in mail headers" gnus-treat-mail-picon t]
2159 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2160 ("View as different encoding"
2161 ,@(gnus-summary-menu-split
2162 (mapcar
2163 (lambda (cs)
2164 ;; Since easymenu under Emacs doesn't allow
2165 ;; lambda forms for menu commands, we should
2166 ;; provide intern'ed function symbols.
2167 (let ((command (intern (format "\
2168gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2169 (fset command
2170 `(lambda ()
2171 (interactive)
2172 (let ((gnus-summary-show-article-charset-alist
2173 '((1 . ,cs))))
2174 (gnus-summary-show-article 1))))
2175 `[,(symbol-name cs) ,command t]))
2176 (sort (if (fboundp 'coding-system-list)
2177 (coding-system-list)
2178 (mapcar 'car mm-mime-mule-charset-alist))
2179 'string<)))))
2180 ("Washing"
2181 ("Remove Blanks"
2182 ["Leading" gnus-article-strip-leading-blank-lines t]
2183 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2184 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2185 ["All of the above" gnus-article-strip-blank-lines t]
2186 ["All" gnus-article-strip-all-blank-lines t]
2187 ["Leading space" gnus-article-strip-leading-space t]
2188 ["Trailing space" gnus-article-strip-trailing-space t]
2189 ["Leading space in headers"
2190 gnus-article-remove-leading-whitespace t])
2191 ["Overstrike" gnus-article-treat-overstrike t]
2192 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2193 ["Emphasis" gnus-article-emphasize t]
2194 ["Word wrap" gnus-article-fill-cited-article t]
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2195 ["Fill long lines" gnus-article-fill-long-lines t]
2196 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2197 ["Remove CR" gnus-article-remove-cr t]
2198 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2199 ["Base64" gnus-article-de-base64-unreadable t]
2200 ["Rot 13" gnus-summary-caesar-message
2201 ,@(if (featurep 'xemacs) '(t)
2202 '(:help "\"Caesar rotate\" article by 13"))]
2203 ["Morse decode" gnus-summary-morse-message t]
2204 ["Unix pipe..." gnus-summary-pipe-message t]
2205 ["Add buttons" gnus-article-add-buttons t]
2206 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2207 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2208 ["Verbose header" gnus-summary-verbose-headers t]
2209 ["Toggle header" gnus-summary-toggle-header t]
2210 ["Unfold headers" gnus-article-treat-unfold-headers t]
2211 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2212 ["Html" gnus-article-wash-html t]
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2213 ["Unsplit URLs" gnus-article-unsplit-urls t]
2214 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2215 ["Decode HZ" gnus-article-decode-HZ t]
2216 ("(Outlook) Deuglify"
2217 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2218 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2219 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2220 ["Full (Outlook) deuglify"
2221 gnus-article-outlook-deuglify-article t])
2222 )
2223 ("Output"
2224 ["Save in default format..." gnus-summary-save-article
2225 ,@(if (featurep 'xemacs) '(t)
2226 '(:help "Save article using default method"))]
2227 ["Save in file..." gnus-summary-save-article-file
2228 ,@(if (featurep 'xemacs) '(t)
2229 '(:help "Save article in file"))]
2230 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2231 ["Save in MH folder..." gnus-summary-save-article-folder t]
2232 ["Save in VM folder..." gnus-summary-save-article-vm t]
2233 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2234 ["Save body in file..." gnus-summary-save-article-body-file t]
2235 ["Pipe through a filter..." gnus-summary-pipe-output t]
2236 ["Add to SOUP packet" gnus-soup-add-article t]
2237 ["Print with Muttprint..." gnus-summary-muttprint t]
2238 ["Print" gnus-summary-print-article t])
2239 ("Backend"
2240 ["Respool article..." gnus-summary-respool-article t]
2241 ["Move article..." gnus-summary-move-article
2242 (gnus-check-backend-function
2243 'request-move-article gnus-newsgroup-name)]
2244 ["Copy article..." gnus-summary-copy-article t]
2245 ["Crosspost article..." gnus-summary-crosspost-article
2246 (gnus-check-backend-function
2247 'request-replace-article gnus-newsgroup-name)]
2248 ["Import file..." gnus-summary-import-article
2249 (gnus-check-backend-function
2250 'request-accept-article gnus-newsgroup-name)]
2251 ["Create article..." gnus-summary-create-article
2252 (gnus-check-backend-function
2253 'request-accept-article gnus-newsgroup-name)]
2254 ["Check if posted" gnus-summary-article-posted-p t]
2255 ["Edit article" gnus-summary-edit-article
2256 (not (gnus-group-read-only-p))]
2257 ["Delete article" gnus-summary-delete-article
2258 (gnus-check-backend-function
2259 'request-expire-articles gnus-newsgroup-name)]
2260 ["Query respool" gnus-summary-respool-query t]
6748645f 2261 ["Trace respool" gnus-summary-respool-trace t]
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2262 ["Delete expirable articles" gnus-summary-expire-articles-now
2263 (gnus-check-backend-function
2264 'request-expire-articles gnus-newsgroup-name)])
2265 ("Extract"
2266 ["Uudecode" gnus-uu-decode-uu
2267 ,@(if (featurep 'xemacs) '(t)
2268 '(:help "Decode uuencoded article(s)"))]
2269 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2270 ["Unshar" gnus-uu-decode-unshar t]
2271 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2272 ["Save" gnus-uu-decode-save t]
2273 ["Binhex" gnus-uu-decode-binhex t]
2274 ["Postscript" gnus-uu-decode-postscript t]
2275 ["All MIME parts" gnus-summary-save-parts t])
2276 ("Cache"
2277 ["Enter article" gnus-cache-enter-article t]
2278 ["Remove article" gnus-cache-remove-article t])
16409b0b 2279 ["Translate" gnus-article-babel t]
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2280 ["Select article buffer" gnus-summary-select-article-buffer t]
2281 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2282 ["Isearch article..." gnus-summary-isearch-article t]
2283 ["Beginning of the article" gnus-summary-beginning-of-article t]
2284 ["End of the article" gnus-summary-end-of-article t]
2285 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2286 ["Fetch referenced articles" gnus-summary-refer-references t]
2287 ["Fetch current thread" gnus-summary-refer-thread t]
2288 ["Fetch article with id..." gnus-summary-refer-article t]
2289 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2290 ["Redisplay" gnus-summary-show-article t]
2291 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2292 (easy-menu-define
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2293 gnus-summary-article-menu gnus-summary-mode-map ""
2294 (cons "Article" innards))
6748645f 2295
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SZ
2296 (if (not (keymapp gnus-summary-article-menu))
2297 (easy-menu-define
2298 gnus-article-commands-menu gnus-article-mode-map ""
2299 (cons "Commands" innards))
2300 ;; in Emacs, don't share menu.
a1506d29 2301 (setq gnus-article-commands-menu
1653df0f
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2302 (copy-keymap gnus-summary-article-menu))
2303 (define-key gnus-article-mode-map [menu-bar commands]
2304 (cons "Commands" gnus-article-commands-menu))))
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2305
2306 (easy-menu-define
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2307 gnus-summary-thread-menu gnus-summary-mode-map ""
2308 '("Threads"
2309 ["Find all messages in thread" gnus-summary-refer-thread t]
2310 ["Toggle threading" gnus-summary-toggle-threads t]
2311 ["Hide threads" gnus-summary-hide-all-threads t]
2312 ["Show threads" gnus-summary-show-all-threads t]
2313 ["Hide thread" gnus-summary-hide-thread t]
2314 ["Show thread" gnus-summary-show-thread t]
2315 ["Go to next thread" gnus-summary-next-thread t]
2316 ["Go to previous thread" gnus-summary-prev-thread t]
2317 ["Go down thread" gnus-summary-down-thread t]
2318 ["Go up thread" gnus-summary-up-thread t]
2319 ["Top of thread" gnus-summary-top-thread t]
2320 ["Mark thread as read" gnus-summary-kill-thread t]
2321 ["Lower thread score" gnus-summary-lower-thread t]
2322 ["Raise thread score" gnus-summary-raise-thread t]
2323 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2324
2325 (easy-menu-define
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2326 gnus-summary-post-menu gnus-summary-mode-map ""
2327 `("Post"
2328 ["Send a message (mail or news)" gnus-summary-post-news
2329 ,@(if (featurep 'xemacs) '(t)
2330 '(:help "Post an article"))]
2331 ["Followup" gnus-summary-followup
2332 ,@(if (featurep 'xemacs) '(t)
2333 '(:help "Post followup to this article"))]
2334 ["Followup and yank" gnus-summary-followup-with-original
2335 ,@(if (featurep 'xemacs) '(t)
2336 '(:help "Post followup to this article, quoting its contents"))]
2337 ["Supersede article" gnus-summary-supersede-article t]
2338 ["Cancel article" gnus-summary-cancel-article
2339 ,@(if (featurep 'xemacs) '(t)
2340 '(:help "Cancel an article you posted"))]
2341 ["Reply" gnus-summary-reply t]
2342 ["Reply and yank" gnus-summary-reply-with-original t]
2343 ["Wide reply" gnus-summary-wide-reply t]
2344 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2345 ,@(if (featurep 'xemacs) '(t)
2346 '(:help "Mail a reply, quoting this article"))]
2347 ["Very wide reply" gnus-summary-very-wide-reply t]
2348 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2349 ,@(if (featurep 'xemacs) '(t)
2350 '(:help "Mail a very wide reply, quoting this article"))]
2351 ["Mail forward" gnus-summary-mail-forward t]
2352 ["Post forward" gnus-summary-post-forward t]
2353 ["Digest and mail" gnus-uu-digest-mail-forward t]
2354 ["Digest and post" gnus-uu-digest-post-forward t]
2355 ["Resend message" gnus-summary-resend-message t]
2356 ["Resend message edit" gnus-summary-resend-message-edit t]
2357 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2358 ["Send a mail" gnus-summary-mail-other-window t]
2359 ["Create a local message" gnus-summary-news-other-window t]
2360 ["Uuencode and post" gnus-uu-post-news
2361 ,@(if (featurep 'xemacs) '(t)
2362 '(:help "Post a uuencoded article"))]
2363 ["Followup via news" gnus-summary-followup-to-mail t]
2364 ["Followup via news and yank"
2365 gnus-summary-followup-to-mail-with-original t]
2366 ;;("Draft"
2367 ;;["Send" gnus-summary-send-draft t]
2368 ;;["Send bounced" gnus-resend-bounced-mail t])
2369 ))
2370
2371 (cond
2372 ((not (keymapp gnus-summary-post-menu))
2373 (setq gnus-article-post-menu gnus-summary-post-menu))
2374 ((not gnus-article-post-menu)
2375 ;; Don't share post menu.
2376 (setq gnus-article-post-menu
2377 (copy-keymap gnus-summary-post-menu))))
2378 (define-key gnus-article-mode-map [menu-bar post]
2379 (cons "Post" gnus-article-post-menu))
eec82323
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2380
2381 (easy-menu-define
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2382 gnus-summary-misc-menu gnus-summary-mode-map ""
2383 `("Gnus"
2384 ("Mark Read"
2385 ["Mark as read" gnus-summary-mark-as-read-forward t]
2386 ["Mark same subject and select"
2387 gnus-summary-kill-same-subject-and-select t]
2388 ["Mark same subject" gnus-summary-kill-same-subject t]
2389 ["Catchup" gnus-summary-catchup
2390 ,@(if (featurep 'xemacs) '(t)
2391 '(:help "Mark unread articles in this group as read"))]
2392 ["Catchup all" gnus-summary-catchup-all t]
2393 ["Catchup to here" gnus-summary-catchup-to-here t]
2394 ["Catchup from here" gnus-summary-catchup-from-here t]
2395 ["Catchup region" gnus-summary-mark-region-as-read
2396 (gnus-mark-active-p)]
2397 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2398 ("Mark Various"
2399 ["Tick" gnus-summary-tick-article-forward t]
2400 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2401 ["Remove marks" gnus-summary-clear-mark-forward t]
2402 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2403 ["Set bookmark" gnus-summary-set-bookmark t]
2404 ["Remove bookmark" gnus-summary-remove-bookmark t])
2405 ("Limit to"
2406 ["Marks..." gnus-summary-limit-to-marks t]
2407 ["Subject..." gnus-summary-limit-to-subject t]
2408 ["Author..." gnus-summary-limit-to-author t]
2409 ["Age..." gnus-summary-limit-to-age t]
2410 ["Extra..." gnus-summary-limit-to-extra t]
2411 ["Score..." gnus-summary-limit-to-score t]
2412 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2413 ["Unread" gnus-summary-limit-to-unread t]
2414 ["Unseen" gnus-summary-limit-to-unseen t]
2415 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
2416 ["Next articles" gnus-summary-limit-to-articles t]
2417 ["Pop limit" gnus-summary-pop-limit t]
2418 ["Show dormant" gnus-summary-limit-include-dormant t]
2419 ["Hide childless dormant"
2420 gnus-summary-limit-exclude-childless-dormant t]
2421 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2422 ["Hide marked" gnus-summary-limit-exclude-marks t]
2423 ["Show expunged" gnus-summary-limit-include-expunged t])
2424 ("Process Mark"
2425 ["Set mark" gnus-summary-mark-as-processable t]
2426 ["Remove mark" gnus-summary-unmark-as-processable t]
2427 ["Remove all marks" gnus-summary-unmark-all-processable t]
2428 ["Mark above" gnus-uu-mark-over t]
2429 ["Mark series" gnus-uu-mark-series t]
2430 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2431 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2432 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2433 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2434 ["Mark all" gnus-uu-mark-all t]
2435 ["Mark buffer" gnus-uu-mark-buffer t]
2436 ["Mark sparse" gnus-uu-mark-sparse t]
2437 ["Mark thread" gnus-uu-mark-thread t]
2438 ["Unmark thread" gnus-uu-unmark-thread t]
2439 ("Process Mark Sets"
2440 ["Kill" gnus-summary-kill-process-mark t]
2441 ["Yank" gnus-summary-yank-process-mark
2442 gnus-newsgroup-process-stack]
2443 ["Save" gnus-summary-save-process-mark t]
2444 ["Run command on marked..." gnus-summary-universal-argument t]))
2445 ("Scroll article"
2446 ["Page forward" gnus-summary-next-page
2447 ,@(if (featurep 'xemacs) '(t)
2448 '(:help "Show next page of article"))]
2449 ["Page backward" gnus-summary-prev-page
2450 ,@(if (featurep 'xemacs) '(t)
2451 '(:help "Show previous page of article"))]
2452 ["Line forward" gnus-summary-scroll-up t])
2453 ("Move"
2454 ["Next unread article" gnus-summary-next-unread-article t]
2455 ["Previous unread article" gnus-summary-prev-unread-article t]
2456 ["Next article" gnus-summary-next-article t]
2457 ["Previous article" gnus-summary-prev-article t]
2458 ["Next unread subject" gnus-summary-next-unread-subject t]
2459 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2460 ["Next article same subject" gnus-summary-next-same-subject t]
2461 ["Previous article same subject" gnus-summary-prev-same-subject t]
2462 ["First unread article" gnus-summary-first-unread-article t]
2463 ["Best unread article" gnus-summary-best-unread-article t]
2464 ["Go to subject number..." gnus-summary-goto-subject t]
2465 ["Go to article number..." gnus-summary-goto-article t]
2466 ["Go to the last article" gnus-summary-goto-last-article t]
2467 ["Pop article off history" gnus-summary-pop-article t])
2468 ("Sort"
2469 ["Sort by number" gnus-summary-sort-by-number t]
2470 ["Sort by author" gnus-summary-sort-by-author t]
2471 ["Sort by subject" gnus-summary-sort-by-subject t]
2472 ["Sort by date" gnus-summary-sort-by-date t]
2473 ["Sort by score" gnus-summary-sort-by-score t]
2474 ["Sort by lines" gnus-summary-sort-by-lines t]
2475 ["Sort by characters" gnus-summary-sort-by-chars t]
2476 ["Randomize" gnus-summary-sort-by-random t]
2477 ["Original sort" gnus-summary-sort-by-original t])
2478 ("Help"
2479 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2480 ["Describe group" gnus-summary-describe-group t]
2481 ["Fetch charter" gnus-group-fetch-charter
2482 ,@(if (featurep 'xemacs) nil
2483 '(:help "Display the charter of the current group"))]
2484 ["Fetch control message" gnus-group-fetch-control
2485 ,@(if (featurep 'xemacs) nil
2486 '(:help "Display the archived control message for the current group"))]
2487 ["Read manual" gnus-info-find-node t])
2488 ("Modes"
2489 ["Pick and read" gnus-pick-mode t]
2490 ["Binary" gnus-binary-mode t])
2491 ("Regeneration"
2492 ["Regenerate" gnus-summary-prepare t]
2493 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2494 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
2495 ["Toggle threading" gnus-summary-toggle-threads t])
2496 ["See old articles" gnus-summary-insert-old-articles t]
2497 ["See new articles" gnus-summary-insert-new-articles t]
2498 ["Filter articles..." gnus-summary-execute-command t]
2499 ["Run command on articles..." gnus-summary-universal-argument t]
2500 ["Search articles forward..." gnus-summary-search-article-forward t]
2501 ["Search articles backward..." gnus-summary-search-article-backward t]
2502 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2503 ["Expand window" gnus-summary-expand-window t]
2504 ["Expire expirable articles" gnus-summary-expire-articles
2505 (gnus-check-backend-function
2506 'request-expire-articles gnus-newsgroup-name)]
2507 ["Edit local kill file" gnus-summary-edit-local-kill t]
2508 ["Edit main kill file" gnus-summary-edit-global-kill t]
2509 ["Edit group parameters" gnus-summary-edit-parameters t]
2510 ["Customize group parameters" gnus-summary-customize-parameters t]
2511 ["Send a bug report" gnus-bug t]
2512 ("Exit"
2513 ["Catchup and exit" gnus-summary-catchup-and-exit
2514 ,@(if (featurep 'xemacs) '(t)
2515 '(:help "Mark unread articles in this group as read, then exit"))]
2516 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2517 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
2518 ["Exit group" gnus-summary-exit
2519 ,@(if (featurep 'xemacs) '(t)
2520 '(:help "Exit current group, return to group selection mode"))]
2521 ["Exit group without updating" gnus-summary-exit-no-update t]
2522 ["Exit and goto next group" gnus-summary-next-group t]
2523 ["Exit and goto prev group" gnus-summary-prev-group t]
2524 ["Reselect group" gnus-summary-reselect-current-group t]
2525 ["Rescan group" gnus-summary-rescan-group t]
2526 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2527
6748645f 2528 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2529
60bd5589
DL
2530(defvar gnus-summary-tool-bar-map nil)
2531
9a0026a6 2532;; Emacs 21 tool bar. Should be no-op otherwise.
60bd5589 2533(defun gnus-summary-make-tool-bar ()
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MB
2534 (if (and (fboundp 'tool-bar-add-item-from-menu)
2535 (default-value 'tool-bar-mode)
2536 (not gnus-summary-tool-bar-map))
60bd5589 2537 (setq gnus-summary-tool-bar-map
23f87bed
MB
2538 (let ((tool-bar-map (make-sparse-keymap))
2539 (load-path (mm-image-load-path)))
60bd5589
DL
2540 (tool-bar-add-item-from-menu
2541 'gnus-summary-prev-unread "prev-ur" gnus-summary-mode-map)
2542 (tool-bar-add-item-from-menu
2543 'gnus-summary-next-unread "next-ur" gnus-summary-mode-map)
2544 (tool-bar-add-item-from-menu
2545 'gnus-summary-post-news "post" gnus-summary-mode-map)
2546 (tool-bar-add-item-from-menu
2547 'gnus-summary-followup-with-original "fuwo" gnus-summary-mode-map)
2548 (tool-bar-add-item-from-menu
2549 'gnus-summary-followup "followup" gnus-summary-mode-map)
2550 (tool-bar-add-item-from-menu
2551 'gnus-summary-reply-with-original "reply-wo" gnus-summary-mode-map)
2552 (tool-bar-add-item-from-menu
2553 'gnus-summary-reply "reply" gnus-summary-mode-map)
2554 (tool-bar-add-item-from-menu
2555 'gnus-summary-caesar-message "rot13" gnus-summary-mode-map)
2556 (tool-bar-add-item-from-menu
2557 'gnus-uu-decode-uu "uu-decode" gnus-summary-mode-map)
2558 (tool-bar-add-item-from-menu
2559 'gnus-summary-save-article-file "save-aif" gnus-summary-mode-map)
2560 (tool-bar-add-item-from-menu
2561 'gnus-summary-save-article "save-art" gnus-summary-mode-map)
2562 (tool-bar-add-item-from-menu
2563 'gnus-uu-post-news "uu-post" gnus-summary-mode-map)
2564 (tool-bar-add-item-from-menu
2565 'gnus-summary-catchup "catchup" gnus-summary-mode-map)
2566 (tool-bar-add-item-from-menu
2567 'gnus-summary-catchup-and-exit "cu-exit" gnus-summary-mode-map)
2568 (tool-bar-add-item-from-menu
2569 'gnus-summary-exit "exit-summ" gnus-summary-mode-map)
2570 tool-bar-map)))
2571 (if gnus-summary-tool-bar-map
2572 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
2573
eec82323
LMI
2574(defun gnus-score-set-default (var value)
2575 "A version of set that updates the GNU Emacs menu-bar."
2576 (set var value)
2577 ;; It is the message that forces the active status to be updated.
2578 (message ""))
2579
2580(defun gnus-make-score-map (type)
2581 "Make a summary score map of type TYPE."
2582 (if t
2583 nil
2584 (let ((headers '(("author" "from" string)
2585 ("subject" "subject" string)
2586 ("article body" "body" string)
2587 ("article head" "head" string)
2588 ("xref" "xref" string)
16409b0b 2589 ("extra header" "extra" string)
eec82323
LMI
2590 ("lines" "lines" number)
2591 ("followups to author" "followup" string)))
2592 (types '((number ("less than" <)
2593 ("greater than" >)
2594 ("equal" =))
2595 (string ("substring" s)
2596 ("exact string" e)
2597 ("fuzzy string" f)
2598 ("regexp" r))))
2599 (perms '(("temporary" (current-time-string))
2600 ("permanent" nil)
2601 ("immediate" now)))
2602 header)
2603 (list
2604 (apply
2605 'nconc
2606 (list
2607 (if (eq type 'lower)
2608 "Lower score"
2609 "Increase score"))
2610 (let (outh)
2611 (while headers
2612 (setq header (car headers))
2613 (setq outh
2614 (cons
2615 (apply
2616 'nconc
2617 (list (car header))
2618 (let ((ts (cdr (assoc (nth 2 header) types)))
2619 outt)
2620 (while ts
2621 (setq outt
2622 (cons
2623 (apply
2624 'nconc
2625 (list (caar ts))
2626 (let ((ps perms)
2627 outp)
2628 (while ps
2629 (setq outp
2630 (cons
2631 (vector
2632 (caar ps)
2633 (list
2634 'gnus-summary-score-entry
2635 (nth 1 header)
2636 (if (or (string= (nth 1 header)
2637 "head")
2638 (string= (nth 1 header)
2639 "body"))
2640 ""
2641 (list 'gnus-summary-header
2642 (nth 1 header)))
2643 (list 'quote (nth 1 (car ts)))
16409b0b
GM
2644 (list 'gnus-score-delta-default
2645 nil)
eec82323
LMI
2646 (nth 1 (car ps))
2647 t)
2648 t)
2649 outp))
2650 (setq ps (cdr ps)))
2651 (list (nreverse outp))))
2652 outt))
2653 (setq ts (cdr ts)))
2654 (list (nreverse outt))))
2655 outh))
2656 (setq headers (cdr headers)))
2657 (list (nreverse outh))))))))
2658
2659\f
2660
2661(defun gnus-summary-mode (&optional group)
2662 "Major mode for reading articles.
2663
2664All normal editing commands are switched off.
2665\\<gnus-summary-mode-map>
2666Each line in this buffer represents one article. To read an
2667article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
2668and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
2669respectively.
2670
2671You can also post articles and send mail from this buffer. To
23f87bed 2672follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
2673of an article, type `\\[gnus-summary-reply]'.
2674
2675There are approx. one gazillion commands you can execute in this
2676buffer; read the info pages for more information (`\\[gnus-info-find-node]').
2677
2678The following commands are available:
2679
2680\\{gnus-summary-mode-map}"
2681 (interactive)
eec82323 2682 (kill-all-local-variables)
60bd5589
DL
2683 (when (gnus-visual-p 'summary-menu 'menu)
2684 (gnus-summary-make-menu-bar)
2685 (gnus-summary-make-tool-bar))
eec82323 2686 (gnus-summary-make-local-variables)
23f87bed
MB
2687 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
2688 (gnus-summary-make-local-variables))
eec82323
LMI
2689 (gnus-make-thread-indent-array)
2690 (gnus-simplify-mode-line)
2691 (setq major-mode 'gnus-summary-mode)
2692 (setq mode-name "Summary")
2693 (make-local-variable 'minor-mode-alist)
2694 (use-local-map gnus-summary-mode-map)
16409b0b 2695 (buffer-disable-undo)
eec82323
LMI
2696 (setq buffer-read-only t) ;Disable modification
2697 (setq truncate-lines t)
2698 (setq selective-display t)
2699 (setq selective-display-ellipses t) ;Display `...'
2700 (gnus-summary-set-display-table)
2701 (gnus-set-default-directory)
2702 (setq gnus-newsgroup-name group)
2703 (make-local-variable 'gnus-summary-line-format)
2704 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
2705 (make-local-variable 'gnus-summary-dummy-line-format)
2706 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 2707 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 2708 (gnus-make-local-hook 'pre-command-hook)
6748645f
LMI
2709 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
2710 (gnus-run-hooks 'gnus-summary-mode-hook)
23f87bed 2711 (turn-on-gnus-mailing-list-mode)
87545352 2712 (mm-enable-multibyte)
eec82323
LMI
2713 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
2714 (gnus-update-summary-mark-positions))
2715
2716(defun gnus-summary-make-local-variables ()
2717 "Make all the local summary buffer variables."
16409b0b
GM
2718 (let (global)
2719 (dolist (local gnus-summary-local-variables)
eec82323
LMI
2720 (if (consp local)
2721 (progn
2722 (if (eq (cdr local) 'global)
2723 ;; Copy the global value of the variable.
2724 (setq global (symbol-value (car local)))
2725 ;; Use the value from the list.
2726 (setq global (eval (cdr local))))
16409b0b 2727 (set (make-local-variable (car local)) global))
eec82323 2728 ;; Simple nil-valued local variable.
16409b0b 2729 (set (make-local-variable local) nil)))))
eec82323
LMI
2730
2731(defun gnus-summary-clear-local-variables ()
2732 (let ((locals gnus-summary-local-variables))
2733 (while locals
2734 (if (consp (car locals))
2735 (and (vectorp (caar locals))
2736 (set (caar locals) nil))
2737 (and (vectorp (car locals))
2738 (set (car locals) nil)))
2739 (setq locals (cdr locals)))))
2740
2741;; Summary data functions.
2742
2743(defmacro gnus-data-number (data)
2744 `(car ,data))
2745
2746(defmacro gnus-data-set-number (data number)
2747 `(setcar ,data ,number))
2748
2749(defmacro gnus-data-mark (data)
2750 `(nth 1 ,data))
2751
2752(defmacro gnus-data-set-mark (data mark)
2753 `(setcar (nthcdr 1 ,data) ,mark))
2754
2755(defmacro gnus-data-pos (data)
2756 `(nth 2 ,data))
2757
2758(defmacro gnus-data-set-pos (data pos)
2759 `(setcar (nthcdr 2 ,data) ,pos))
2760
2761(defmacro gnus-data-header (data)
2762 `(nth 3 ,data))
2763
2764(defmacro gnus-data-set-header (data header)
2765 `(setf (nth 3 ,data) ,header))
2766
2767(defmacro gnus-data-level (data)
2768 `(nth 4 ,data))
2769
2770(defmacro gnus-data-unread-p (data)
2771 `(= (nth 1 ,data) gnus-unread-mark))
2772
2773(defmacro gnus-data-read-p (data)
2774 `(/= (nth 1 ,data) gnus-unread-mark))
2775
2776(defmacro gnus-data-pseudo-p (data)
2777 `(consp (nth 3 ,data)))
2778
2779(defmacro gnus-data-find (number)
2780 `(assq ,number gnus-newsgroup-data))
2781
2782(defmacro gnus-data-find-list (number &optional data)
2783 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
2784 (memq (assq ,number bdata)
2785 bdata)))
2786
2787(defmacro gnus-data-make (number mark pos header level)
2788 `(list ,number ,mark ,pos ,header ,level))
2789
2790(defun gnus-data-enter (after-article number mark pos header level offset)
2791 (let ((data (gnus-data-find-list after-article)))
2792 (unless data
2793 (error "No such article: %d" after-article))
2794 (setcdr data (cons (gnus-data-make number mark pos header level)
2795 (cdr data)))
2796 (setq gnus-newsgroup-data-reverse nil)
2797 (gnus-data-update-list (cddr data) offset)))
2798
2799(defun gnus-data-enter-list (after-article list &optional offset)
2800 (when list
2801 (let ((data (and after-article (gnus-data-find-list after-article)))
2802 (ilist list))
6748645f
LMI
2803 (if (not (or data
2804 after-article))
2805 (let ((odata gnus-newsgroup-data))
2806 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 2807 (when offset
6748645f 2808 (gnus-data-update-list odata offset)))
23f87bed 2809 ;; Find the last element in the list to be spliced into the main
6748645f
LMI
2810 ;; list.
2811 (while (cdr list)
2812 (setq list (cdr list)))
2813 (if (not data)
2814 (progn
2815 (setcdr list gnus-newsgroup-data)
2816 (setq gnus-newsgroup-data ilist)
2817 (when offset
2818 (gnus-data-update-list (cdr list) offset)))
2819 (setcdr list (cdr data))
2820 (setcdr data ilist)
2821 (when offset
2822 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
2823 (setq gnus-newsgroup-data-reverse nil))))
2824
2825(defun gnus-data-remove (article &optional offset)
2826 (let ((data gnus-newsgroup-data))
2827 (if (= (gnus-data-number (car data)) article)
2828 (progn
2829 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
2830 gnus-newsgroup-data-reverse nil)
2831 (when offset
2832 (gnus-data-update-list gnus-newsgroup-data offset)))
2833 (while (cdr data)
2834 (when (= (gnus-data-number (cadr data)) article)
2835 (setcdr data (cddr data))
2836 (when offset
2837 (gnus-data-update-list (cdr data) offset))
2838 (setq data nil
2839 gnus-newsgroup-data-reverse nil))
2840 (setq data (cdr data))))))
2841
2842(defmacro gnus-data-list (backward)
2843 `(if ,backward
2844 (or gnus-newsgroup-data-reverse
2845 (setq gnus-newsgroup-data-reverse
2846 (reverse gnus-newsgroup-data)))
2847 gnus-newsgroup-data))
2848
2849(defun gnus-data-update-list (data offset)
2850 "Add OFFSET to the POS of all data entries in DATA."
6748645f 2851 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
2852 (while data
2853 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
2854 (setq data (cdr data))))
2855
eec82323
LMI
2856(defun gnus-summary-article-pseudo-p (article)
2857 "Say whether this article is a pseudo article or not."
2858 (not (vectorp (gnus-data-header (gnus-data-find article)))))
2859
2860(defmacro gnus-summary-article-sparse-p (article)
2861 "Say whether this article is a sparse article or not."
a8151ef7 2862 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
2863
2864(defmacro gnus-summary-article-ancient-p (article)
2865 "Say whether this article is a sparse article or not."
2866 `(memq ,article gnus-newsgroup-ancient))
2867
2868(defun gnus-article-parent-p (number)
2869 "Say whether this article is a parent or not."
2870 (let ((data (gnus-data-find-list number)))
23f87bed 2871 (and (cdr data) ; There has to be an article after...
eec82323
LMI
2872 (< (gnus-data-level (car data)) ; And it has to have a higher level.
2873 (gnus-data-level (nth 1 data))))))
2874
2875(defun gnus-article-children (number)
2876 "Return a list of all children to NUMBER."
2877 (let* ((data (gnus-data-find-list number))
2878 (level (gnus-data-level (car data)))
2879 children)
2880 (setq data (cdr data))
2881 (while (and data
2882 (= (gnus-data-level (car data)) (1+ level)))
2883 (push (gnus-data-number (car data)) children)
2884 (setq data (cdr data)))
2885 children))
2886
2887(defmacro gnus-summary-skip-intangible ()
2888 "If the current article is intangible, then jump to a different article."
2889 '(let ((to (get-text-property (point) 'gnus-intangible)))
2890 (and to (gnus-summary-goto-subject to))))
2891
2892(defmacro gnus-summary-article-intangible-p ()
2893 "Say whether this article is intangible or not."
2894 '(get-text-property (point) 'gnus-intangible))
2895
2896(defun gnus-article-read-p (article)
2897 "Say whether ARTICLE is read or not."
2898 (not (or (memq article gnus-newsgroup-marked)
23f87bed 2899 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
2900 (memq article gnus-newsgroup-unreads)
2901 (memq article gnus-newsgroup-unselected)
2902 (memq article gnus-newsgroup-dormant))))
2903
2904;; Some summary mode macros.
2905
2906(defmacro gnus-summary-article-number ()
2907 "The article number of the article on the current line.
8f688cb0 2908If there isn't an article number here, then we return the current
eec82323
LMI
2909article number."
2910 '(progn
2911 (gnus-summary-skip-intangible)
2912 (or (get-text-property (point) 'gnus-number)
2913 (gnus-summary-last-subject))))
2914
2915(defmacro gnus-summary-article-header (&optional number)
6748645f 2916 "Return the header of article NUMBER."
eec82323
LMI
2917 `(gnus-data-header (gnus-data-find
2918 ,(or number '(gnus-summary-article-number)))))
2919
2920(defmacro gnus-summary-thread-level (&optional number)
6748645f 2921 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
2922 `(if (and (eq gnus-summary-make-false-root 'dummy)
2923 (get-text-property (point) 'gnus-intangible))
2924 0
2925 (gnus-data-level (gnus-data-find
2926 ,(or number '(gnus-summary-article-number))))))
2927
2928(defmacro gnus-summary-article-mark (&optional number)
6748645f 2929 "Return the mark of article NUMBER."
eec82323
LMI
2930 `(gnus-data-mark (gnus-data-find
2931 ,(or number '(gnus-summary-article-number)))))
2932
2933(defmacro gnus-summary-article-pos (&optional number)
6748645f 2934 "Return the position of the line of article NUMBER."
eec82323
LMI
2935 `(gnus-data-pos (gnus-data-find
2936 ,(or number '(gnus-summary-article-number)))))
2937
2938(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
2939(defmacro gnus-summary-article-subject (&optional number)
2940 "Return current subject string or nil if nothing."
2941 `(let ((headers
2942 ,(if number
2943 `(gnus-data-header (assq ,number gnus-newsgroup-data))
2944 '(gnus-data-header (assq (gnus-summary-article-number)
2945 gnus-newsgroup-data)))))
2946 (and headers
2947 (vectorp headers)
2948 (mail-header-subject headers))))
2949
2950(defmacro gnus-summary-article-score (&optional number)
2951 "Return current article score."
2952 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
2953 gnus-newsgroup-scored))
2954 gnus-summary-default-score 0))
2955
2956(defun gnus-summary-article-children (&optional number)
6748645f 2957 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
2958 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
2959 (level (gnus-data-level (car data)))
2960 l children)
2961 (while (and (setq data (cdr data))
2962 (> (setq l (gnus-data-level (car data))) level))
2963 (and (= (1+ level) l)
2964 (push (gnus-data-number (car data))
2965 children)))
2966 (nreverse children)))
2967
2968(defun gnus-summary-article-parent (&optional number)
6748645f 2969 "Return the article number of the parent of article NUMBER."
eec82323
LMI
2970 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
2971 (gnus-data-list t)))
2972 (level (gnus-data-level (car data))))
2973 (if (zerop level)
2974 () ; This is a root.
2975 ;; We search until we find an article with a level less than
2976 ;; this one. That function has to be the parent.
2977 (while (and (setq data (cdr data))
2978 (not (< (gnus-data-level (car data)) level))))
2979 (and data (gnus-data-number (car data))))))
2980
2981(defun gnus-unread-mark-p (mark)
2982 "Say whether MARK is the unread mark."
2983 (= mark gnus-unread-mark))
2984
2985(defun gnus-read-mark-p (mark)
2986 "Say whether MARK is one of the marks that mark as read.
2987This is all marks except unread, ticked, dormant, and expirable."
2988 (not (or (= mark gnus-unread-mark)
2989 (= mark gnus-ticked-mark)
23f87bed 2990 (= mark gnus-spam-mark)
eec82323
LMI
2991 (= mark gnus-dormant-mark)
2992 (= mark gnus-expirable-mark))))
2993
2994(defmacro gnus-article-mark (number)
6748645f
LMI
2995 "Return the MARK of article NUMBER.
2996This macro should only be used when computing the mark the \"first\"
2997time; i.e., when generating the summary lines. After that,
2998`gnus-summary-article-mark' should be used to examine the
2999marks of articles."
eec82323 3000 `(cond
6748645f 3001 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3002 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3003 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3004 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3005 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3006 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3007 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3008 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3009 gnus-ancient-mark))))
3010
3011;; Saving hidden threads.
3012
eec82323
LMI
3013(defmacro gnus-save-hidden-threads (&rest forms)
3014 "Save hidden threads, eval FORMS, and restore the hidden threads."
3015 (let ((config (make-symbol "config")))
3016 `(let ((,config (gnus-hidden-threads-configuration)))
3017 (unwind-protect
3018 (save-excursion
3019 ,@forms)
3020 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3021(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3022(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3023
107ecebb
AS
3024(defun gnus-data-compute-positions ()
3025 "Compute the positions of all articles."
3026 (setq gnus-newsgroup-data-reverse nil)
3027 (let ((data gnus-newsgroup-data))
3028 (save-excursion
3029 (gnus-save-hidden-threads
3030 (gnus-summary-show-all-threads)
3031 (goto-char (point-min))
3032 (while data
3033 (while (get-text-property (point) 'gnus-intangible)
3034 (forward-line 1))
3035 (gnus-data-set-pos (car data) (+ (point) 3))
3036 (setq data (cdr data))
3037 (forward-line 1))))))
3038
16409b0b
GM
3039(defun gnus-hidden-threads-configuration ()
3040 "Return the current hidden threads configuration."
3041 (save-excursion
3042 (let (config)
3043 (goto-char (point-min))
3044 (while (search-forward "\r" nil t)
3045 (push (1- (point)) config))
3046 config)))
3047
3048(defun gnus-restore-hidden-threads-configuration (config)
3049 "Restore hidden threads configuration from CONFIG."
3050 (save-excursion
3051 (let (point buffer-read-only)
3052 (while (setq point (pop config))
3053 (when (and (< point (point-max))
3054 (goto-char point)
3055 (eq (char-after) ?\n))
3056 (subst-char-in-region point (1+ point) ?\n ?\r))))))
3057
eec82323
LMI
3058;; Various summary mode internalish functions.
3059
3060(defun gnus-mouse-pick-article (e)
3061 (interactive "e")
3062 (mouse-set-point e)
3063 (gnus-summary-next-page nil t))
3064
3065(defun gnus-summary-set-display-table ()
16409b0b
GM
3066 "Change the display table.
3067Odd characters have a tendency to mess
3068up nicely formatted displays - we make all possible glyphs
3069display only a single character."
eec82323
LMI
3070
3071 ;; We start from the standard display table, if any.
3072 (let ((table (or (copy-sequence standard-display-table)
3073 (make-display-table)))
3074 (i 32))
3075 ;; Nix out all the control chars...
3076 (while (>= (setq i (1- i)) 0)
3077 (aset table i [??]))
23f87bed 3078 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323
LMI
3079 ;; selective display).
3080 (aset table ?\n nil)
3081 (aset table ?\r nil)
6748645f
LMI
3082 ;; We keep TAB as well.
3083 (aset table ?\t nil)
eec82323
LMI
3084 ;; We nix out any glyphs over 126 that are not set already.
3085 (let ((i 256))
3086 (while (>= (setq i (1- i)) 127)
3087 ;; Only modify if the entry is nil.
3088 (unless (aref table i)
3089 (aset table i [??]))))
3090 (setq buffer-display-table table)))
3091
23f87bed
MB
3092(defun gnus-summary-set-article-display-arrow (pos)
3093 "Update the overlay arrow to point to line at position POS."
3094 (when (and gnus-summary-display-arrow
3095 (boundp 'overlay-arrow-position)
3096 (boundp 'overlay-arrow-string))
3097 (save-excursion
3098 (goto-char pos)
3099 (beginning-of-line)
3100 (unless overlay-arrow-position
3101 (setq overlay-arrow-position (make-marker)))
3102 (setq overlay-arrow-string "=>"
3103 overlay-arrow-position (set-marker overlay-arrow-position
3104 (point)
3105 (current-buffer))))))
3106
eec82323
LMI
3107(defun gnus-summary-setup-buffer (group)
3108 "Initialize summary buffer."
23f87bed
MB
3109 (let ((buffer (gnus-summary-buffer-name group))
3110 (dead-name (concat "*Dead Summary "
3111 (gnus-group-decoded-name group) "*")))
3112 ;; If a dead summary buffer exists, we kill it.
3113 (when (gnus-buffer-live-p dead-name)
3114 (gnus-kill-buffer dead-name))
eec82323
LMI
3115 (if (get-buffer buffer)
3116 (progn
3117 (set-buffer buffer)
3118 (setq gnus-summary-buffer (current-buffer))
3119 (not gnus-newsgroup-prepared))
3120 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3121 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3122 (gnus-summary-mode group)
3123 (when gnus-carpal
3124 (gnus-carpal-setup-buffer 'summary))
3125 (unless gnus-single-article-buffer
3126 (make-local-variable 'gnus-article-buffer)
3127 (make-local-variable 'gnus-article-current)
3128 (make-local-variable 'gnus-original-article-buffer))
3129 (setq gnus-newsgroup-name group)
23f87bed
MB
3130 ;; Set any local variables in the group parameters.
3131 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3132 t)))
3133
3134(defun gnus-set-global-variables ()
16409b0b
GM
3135 "Set the global equivalents of the buffer-local variables.
3136They are set to the latest values they had. These reflect the summary
3137buffer that was in action when the last article was fetched."
eec82323
LMI
3138 (when (eq major-mode 'gnus-summary-mode)
3139 (setq gnus-summary-buffer (current-buffer))
3140 (let ((name gnus-newsgroup-name)
3141 (marked gnus-newsgroup-marked)
23f87bed 3142 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3143 (unread gnus-newsgroup-unreads)
3144 (headers gnus-current-headers)
3145 (data gnus-newsgroup-data)
3146 (summary gnus-summary-buffer)
3147 (article-buffer gnus-article-buffer)
3148 (original gnus-original-article-buffer)
3149 (gac gnus-article-current)
3150 (reffed gnus-reffed-article-number)
16409b0b 3151 (score-file gnus-current-score-file)
23f87bed
MB
3152 (default-charset gnus-newsgroup-charset)
3153 vlist)
3154 (let ((locals gnus-newsgroup-variables))
3155 (while locals
3156 (if (consp (car locals))
3157 (push (eval (caar locals)) vlist)
3158 (push (eval (car locals)) vlist))
3159 (setq locals (cdr locals)))
3160 (setq vlist (nreverse vlist)))
eec82323
LMI
3161 (save-excursion
3162 (set-buffer gnus-group-buffer)
6748645f
LMI
3163 (setq gnus-newsgroup-name name
3164 gnus-newsgroup-marked marked
23f87bed 3165 gnus-newsgroup-spam-marked spam
6748645f
LMI
3166 gnus-newsgroup-unreads unread
3167 gnus-current-headers headers
3168 gnus-newsgroup-data data
3169 gnus-article-current gac
3170 gnus-summary-buffer summary
3171 gnus-article-buffer article-buffer
3172 gnus-original-article-buffer original
3173 gnus-reffed-article-number reffed
16409b0b
GM
3174 gnus-current-score-file score-file
3175 gnus-newsgroup-charset default-charset)
23f87bed
MB
3176 (let ((locals gnus-newsgroup-variables))
3177 (while locals
3178 (if (consp (car locals))
3179 (set (caar locals) (pop vlist))
3180 (set (car locals) (pop vlist)))
3181 (setq locals (cdr locals))))
eec82323
LMI
3182 ;; The article buffer also has local variables.
3183 (when (gnus-buffer-live-p gnus-article-buffer)
3184 (set-buffer gnus-article-buffer)
3185 (setq gnus-summary-buffer summary))))))
3186
3187(defun gnus-summary-article-unread-p (article)
3188 "Say whether ARTICLE is unread or not."
3189 (memq article gnus-newsgroup-unreads))
3190
3191(defun gnus-summary-first-article-p (&optional article)
3192 "Return whether ARTICLE is the first article in the buffer."
3193 (if (not (setq article (or article (gnus-summary-article-number))))
3194 nil
3195 (eq article (caar gnus-newsgroup-data))))
3196
3197(defun gnus-summary-last-article-p (&optional article)
3198 "Return whether ARTICLE is the last article in the buffer."
3199 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3200 ;; All non-existent numbers are the last article. :-)
3201 t
eec82323
LMI
3202 (not (cdr (gnus-data-find-list article)))))
3203
3204(defun gnus-make-thread-indent-array ()
3205 (let ((n 200))
3206 (unless (and gnus-thread-indent-array
3207 (= gnus-thread-indent-level gnus-thread-indent-array-level))
3208 (setq gnus-thread-indent-array (make-vector 201 "")
3209 gnus-thread-indent-array-level gnus-thread-indent-level)
3210 (while (>= n 0)
3211 (aset gnus-thread-indent-array n
3212 (make-string (* n gnus-thread-indent-level) ? ))
3213 (setq n (1- n))))))
3214
3215(defun gnus-update-summary-mark-positions ()
3216 "Compute where the summary marks are to go."
3217 (save-excursion
6748645f 3218 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323
LMI
3219 (set-buffer gnus-summary-buffer))
3220 (let ((gnus-replied-mark 129)
3221 (gnus-score-below-mark 130)
3222 (gnus-score-over-mark 130)
23f87bed 3223 (gnus-undownloaded-mark 131)
eec82323 3224 (spec gnus-summary-line-format-spec)
6748645f 3225 gnus-visual pos)
eec82323
LMI
3226 (save-excursion
3227 (gnus-set-work-buffer)
6748645f 3228 (let ((gnus-summary-line-format-spec spec)
23f87bed 3229 (gnus-newsgroup-downloadable '(0)))
eec82323 3230 (gnus-summary-insert-line
23f87bed
MB
3231 [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil]
3232 0 nil t 128 t nil "" nil 1)
eec82323
LMI
3233 (goto-char (point-min))
3234 (setq pos (list (cons 'unread (and (search-forward "\200" nil t)
667e0ba6 3235 (- (point) (point-min) 1)))))
eec82323
LMI
3236 (goto-char (point-min))
3237 (push (cons 'replied (and (search-forward "\201" nil t)
667e0ba6 3238 (- (point) (point-min) 1)))
eec82323
LMI
3239 pos)
3240 (goto-char (point-min))
667e0ba6
SM
3241 (push (cons 'score (and (search-forward "\202" nil t)
3242 (- (point) (point-min) 1)))
6748645f
LMI
3243 pos)
3244 (goto-char (point-min))
3245 (push (cons 'download
667e0ba6
SM
3246 (and (search-forward "\203" nil t)
3247 (- (point) (point-min) 1)))
eec82323
LMI
3248 pos)))
3249 (setq gnus-summary-mark-positions pos))))
3250
3251(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3252 "Insert a dummy root in the summary buffer."
3253 (beginning-of-line)
3254 (gnus-add-text-properties
3255 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3256 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3257
23f87bed
MB
3258(defun gnus-summary-extract-address-component (from)
3259 (or (car (funcall gnus-extract-address-components from))
3260 from))
3261
3262(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3263 (let ((mail-parse-charset gnus-newsgroup-charset)
3264 ; Is it really necessary to do this next part for each summary line?
3265 ; Luckily, doesn't seem to slow things down much.
16409b0b
GM
3266 (mail-parse-ignored-charsets
3267 (save-excursion (set-buffer gnus-summary-buffer)
3268 gnus-newsgroup-ignored-charsets)))
23f87bed
MB
3269 (or
3270 (and gnus-ignored-from-addresses
3271 (string-match gnus-ignored-from-addresses gnus-tmp-from)
3272 (let ((extra-headers (mail-header-extra header))
3273 to
3274 newsgroups)
3275 (cond
3276 ((setq to (cdr (assq 'To extra-headers)))
3277 (concat "-> "
3278 (inline
3279 (gnus-summary-extract-address-component
3280 (funcall gnus-decode-encoded-word-function to)))))
3281 ((setq newsgroups (cdr (assq 'Newsgroups extra-headers)))
3282 (concat "=> " newsgroups)))))
3283 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3284
eec82323
LMI
3285(defun gnus-summary-insert-line (gnus-tmp-header
3286 gnus-tmp-level gnus-tmp-current
23f87bed 3287 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3288 gnus-tmp-expirable gnus-tmp-subject-or-nil
3289 &optional gnus-tmp-dummy gnus-tmp-score
3290 gnus-tmp-process)
3291 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3292 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3293 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3294 (gnus-tmp-score-char
3295 (if (or (null gnus-summary-default-score)
3296 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3297 gnus-summary-zcore-fuzz))
23f87bed 3298 ? ;Whitespace
eec82323
LMI
3299 (if (< gnus-tmp-score gnus-summary-default-score)
3300 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3301 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3302 (gnus-tmp-replied
3303 (cond (gnus-tmp-process gnus-process-mark)
3304 ((memq gnus-tmp-current gnus-newsgroup-cached)
3305 gnus-cached-mark)
3306 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3307 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3308 gnus-forwarded-mark)
eec82323
LMI
3309 ((memq gnus-tmp-current gnus-newsgroup-saved)
3310 gnus-saved-mark)
23f87bed
MB
3311 ((memq gnus-tmp-number gnus-newsgroup-recent)
3312 gnus-recent-mark)
3313 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3314 gnus-unseen-mark)
3315 (t gnus-no-mark)))
3316 (gnus-tmp-downloaded
3317 (cond (undownloaded
3318 gnus-undownloaded-mark)
3319 (gnus-newsgroup-agentized
3320 gnus-downloaded-mark)
3321 (t
3322 gnus-no-mark)))
eec82323
LMI
3323 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3324 (gnus-tmp-name
3325 (cond
3326 ((string-match "<[^>]+> *$" gnus-tmp-from)
3327 (let ((beg (match-beginning 0)))
23f87bed
MB
3328 (or (and (string-match "^\".+\"" gnus-tmp-from)
3329 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3330 (substring gnus-tmp-from 0 beg))))
3331 ((string-match "(.+)" gnus-tmp-from)
3332 (substring gnus-tmp-from
3333 (1+ (match-beginning 0)) (1- (match-end 0))))
3334 (t gnus-tmp-from)))
3335 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3336 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3337 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
3338 (buffer-read-only nil))
3339 (when (string= gnus-tmp-name "")
3340 (setq gnus-tmp-name gnus-tmp-from))
3341 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3342 (setq gnus-tmp-lines -1))
3343 (if (= gnus-tmp-lines -1)
3344 (setq gnus-tmp-lines "?")
3345 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
3346 (gnus-put-text-property
eec82323
LMI
3347 (point)
3348 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 3349 'gnus-number gnus-tmp-number)
eec82323
LMI
3350 (when (gnus-visual-p 'summary-highlight 'highlight)
3351 (forward-line -1)
6748645f 3352 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3353 (forward-line 1))))
3354
3355(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3356 "Update summary line after change."
eec82323
LMI
3357 (when (and gnus-summary-default-score
3358 (not gnus-summary-inhibit-highlight))
3359 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3360 (article (gnus-summary-article-number))
3361 (score (gnus-summary-article-score article)))
3362 (unless dont-update
3363 (if (and gnus-summary-mark-below
3364 (< (gnus-summary-article-score)
3365 gnus-summary-mark-below))
3366 ;; This article has a low score, so we mark it as read.
3367 (when (memq article gnus-newsgroup-unreads)
3368 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3369 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3370 ;; This article was previously marked as read on account
3371 ;; of a low score, but now it has risen, so we mark it as
3372 ;; unread.
3373 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3374 (gnus-summary-update-mark
3375 (if (or (null gnus-summary-default-score)
3376 (<= (abs (- score gnus-summary-default-score))
3377 gnus-summary-zcore-fuzz))
23f87bed 3378 ? ;Whitespace
eec82323
LMI
3379 (if (< score gnus-summary-default-score)
3380 gnus-score-below-mark gnus-score-over-mark))
3381 'score))
3382 ;; Do visual highlighting.
3383 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3384 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3385
3386(defvar gnus-tmp-new-adopts nil)
3387
3388(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3389 "Return the number of articles in THREAD.
3390This may be 0 in some cases -- if none of the articles in
3391the thread are to be displayed."
3392 (let* ((number
23f87bed 3393 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3394 (cond
3395 ((not (listp thread))
3396 1)
3397 ((and (consp thread) (cdr thread))
3398 (apply
3399 '+ 1 (mapcar
3400 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3401 ((null thread)
3402 1)
3403 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3404 1)
3405 (t 0))))
3406 (when (and level (zerop level) gnus-tmp-new-adopts)
3407 (incf number
3408 (apply '+ (mapcar
3409 'gnus-summary-number-of-articles-in-thread
3410 gnus-tmp-new-adopts))))
3411 (if char
3412 (if (> number 1) gnus-not-empty-thread-mark
3413 gnus-empty-thread-mark)
3414 number)))
3415
23f87bed
MB
3416(defsubst gnus-summary-line-message-size (head)
3417 "Return pretty-printed version of message size.
3418This function is intended to be used in
3419`gnus-summary-line-format-alist'."
3420 (let ((c (or (mail-header-chars head) -1)))
3421 (cond ((< c 0) "n/a") ; chars not available
3422 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3423 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3424 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3425 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3426
3427
eec82323
LMI
3428(defun gnus-summary-set-local-parameters (group)
3429 "Go through the local params of GROUP and set all variable specs in that list."
3430 (let ((params (gnus-group-find-parameter group))
23f87bed 3431 (vars '(quit-config)) ; Ignore quit-config.
eec82323
LMI
3432 elem)
3433 (while params
3434 (setq elem (car params)
3435 params (cdr params))
3436 (and (consp elem) ; Has to be a cons.
3437 (consp (cdr elem)) ; The cdr has to be a list.
3438 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3439 (not (memq (car elem) vars))
eec82323 3440 (ignore-errors ; So we set it.
23f87bed 3441 (push (car elem) vars)
eec82323
LMI
3442 (make-local-variable (car elem))
3443 (set (car elem) (eval (nth 1 elem))))))))
3444
3445(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3446 kill-buffer no-display backward
3447 select-articles)
eec82323
LMI
3448 "Start reading news in newsgroup GROUP.
3449If SHOW-ALL is non-nil, already read articles are also listed.
3450If NO-ARTICLE is non-nil, no article is selected initially.
3451If NO-DISPLAY, don't generate a summary buffer."
3452 (let (result)
3453 (while (and group
3454 (null (setq result
3455 (let ((gnus-auto-select-next nil))
6748645f
LMI
3456 (or (gnus-summary-read-group-1
3457 group show-all no-article
3458 kill-buffer no-display
3459 select-articles)
3460 (setq show-all nil
16409b0b 3461 select-articles nil)))))
eec82323
LMI
3462 (eq gnus-auto-select-next 'quietly))
3463 (set-buffer gnus-group-buffer)
6748645f
LMI
3464 ;; The entry function called above goes to the next
3465 ;; group automatically, so we go two groups back
3466 ;; if we are searching for the previous group.
3467 (when backward
3468 (gnus-group-prev-unread-group 2))
eec82323
LMI
3469 (if (not (equal group (gnus-group-group-name)))
3470 (setq group (gnus-group-group-name))
3471 (setq group nil)))
3472 result))
3473
3474(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3475 kill-buffer no-display
3476 &optional select-articles)
eec82323 3477 ;; Killed foreign groups can't be entered.
23f87bed
MB
3478 ;; (when (and (not (gnus-group-native-p group))
3479 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3480 ;; (error "Dead non-native groups can't be entered"))
3481 (gnus-message 5 "Retrieving newsgroup: %s..."
3482 (gnus-group-decoded-name group))
eec82323
LMI
3483 (let* ((new-group (gnus-summary-setup-buffer group))
3484 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3485 (did-select (and new-group (gnus-select-newsgroup
3486 group show-all select-articles))))
eec82323
LMI
3487 (cond
3488 ;; This summary buffer exists already, so we just select it.
3489 ((not new-group)
3490 (gnus-set-global-variables)
3491 (when kill-buffer
3492 (gnus-kill-or-deaden-summary kill-buffer))
3493 (gnus-configure-windows 'summary 'force)
3494 (gnus-set-mode-line 'summary)
3495 (gnus-summary-position-point)
3496 (message "")
3497 t)
3498 ;; We couldn't select this group.
3499 ((null did-select)
3500 (when (and (eq major-mode 'gnus-summary-mode)
3501 (not (equal (current-buffer) kill-buffer)))
3502 (kill-buffer (current-buffer))
3503 (if (not quit-config)
3504 (progn
6748645f
LMI
3505 ;; Update the info -- marks might need to be removed,
3506 ;; for instance.
3507 (gnus-summary-update-info)
eec82323
LMI
3508 (set-buffer gnus-group-buffer)
3509 (gnus-group-jump-to-group group)
3510 (gnus-group-next-unread-group 1))
3511 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3512 (let ((grpinfo (gnus-get-info group)))
3513 (if (null (gnus-info-read grpinfo))
3514 (gnus-message 3 "Group %s contains no messages"
3515 (gnus-group-decoded-name group))
3516 (gnus-message 3 "Can't select group")))
eec82323
LMI
3517 nil)
3518 ;; The user did a `C-g' while prompting for number of articles,
3519 ;; so we exit this group.
3520 ((eq did-select 'quit)
3521 (and (eq major-mode 'gnus-summary-mode)
3522 (not (equal (current-buffer) kill-buffer))
3523 (kill-buffer (current-buffer)))
3524 (when kill-buffer
3525 (gnus-kill-or-deaden-summary kill-buffer))
3526 (if (not quit-config)
3527 (progn
3528 (set-buffer gnus-group-buffer)
3529 (gnus-group-jump-to-group group)
3530 (gnus-group-next-unread-group 1)
3531 (gnus-configure-windows 'group 'force))
3532 (gnus-handle-ephemeral-exit quit-config))
3533 ;; Finally signal the quit.
3534 (signal 'quit nil))
3535 ;; The group was successfully selected.
3536 (t
3537 (gnus-set-global-variables)
3538 ;; Save the active value in effect when the group was entered.
3539 (setq gnus-newsgroup-active
3540 (gnus-copy-sequence
3541 (gnus-active gnus-newsgroup-name)))
3542 ;; You can change the summary buffer in some way with this hook.
6748645f 3543 (gnus-run-hooks 'gnus-select-group-hook)
eec82323
LMI
3544 (gnus-update-format-specifications
3545 nil 'summary 'summary-mode 'summary-dummy)
16409b0b 3546 (gnus-update-summary-mark-positions)
eec82323
LMI
3547 ;; Do score processing.
3548 (when gnus-use-scoring
3549 (gnus-possibly-score-headers))
3550 ;; Check whether to fill in the gaps in the threads.
3551 (when gnus-build-sparse-threads
3552 (gnus-build-sparse-threads))
3553 ;; Find the initial limit.
3554 (if gnus-show-threads
3555 (if show-all
3556 (let ((gnus-newsgroup-dormant nil))
3557 (gnus-summary-initial-limit show-all))
3558 (gnus-summary-initial-limit show-all))
8f688cb0 3559 ;; When unthreaded, all articles are always shown.
eec82323
LMI
3560 (setq gnus-newsgroup-limit
3561 (mapcar
3562 (lambda (header) (mail-header-number header))
3563 gnus-newsgroup-headers)))
3564 ;; Generate the summary buffer.
3565 (unless no-display
3566 (gnus-summary-prepare))
3567 (when gnus-use-trees
3568 (gnus-tree-open group)
3569 (setq gnus-summary-highlight-line-function
3570 'gnus-tree-highlight-article))
3571 ;; If the summary buffer is empty, but there are some low-scored
3572 ;; articles or some excluded dormants, we include these in the
3573 ;; buffer.
3574 (when (and (zerop (buffer-size))
3575 (not no-display))
3576 (cond (gnus-newsgroup-dormant
3577 (gnus-summary-limit-include-dormant))
3578 ((and gnus-newsgroup-scored show-all)
3579 (gnus-summary-limit-include-expunged t))))
3580 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3581 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3582 (if (and (zerop (buffer-size))
3583 (not no-display))
3584 (progn
3585 ;; This newsgroup is empty.
3586 (gnus-summary-catchup-and-exit nil t)
3587 (gnus-message 6 "No unread news")
3588 (when kill-buffer
3589 (gnus-kill-or-deaden-summary kill-buffer))
3590 ;; Return nil from this function.
3591 nil)
3592 ;; Hide conversation thread subtrees. We cannot do this in
3593 ;; gnus-summary-prepare-hook since kill processing may not
3594 ;; work with hidden articles.
23f87bed 3595 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3596 (when kill-buffer
3597 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3598 (gnus-summary-auto-select-subject)
eec82323
LMI
3599 ;; Show first unread article if requested.
3600 (if (and (not no-article)
3601 (not no-display)
3602 gnus-newsgroup-unreads
3603 gnus-auto-select-first)
16409b0b
GM
3604 (progn
3605 (gnus-configure-windows 'summary)
23f87bed
MB
3606 (let ((art (gnus-summary-article-number)))
3607 (unless (and (not gnus-plugged)
3608 (or (memq art gnus-newsgroup-undownloaded)
3609 (memq art gnus-newsgroup-downloadable)))
3610 (gnus-summary-goto-article art))))
3611 ;; Don't select any articles.
eec82323 3612 (gnus-summary-position-point)
6748645f
LMI
3613 (gnus-configure-windows 'summary 'force)
3614 (gnus-set-mode-line 'summary))
23f87bed
MB
3615 (when (and gnus-auto-center-group
3616 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
3617 ;; Gotta use windows, because recenter does weird stuff if
3618 ;; the current buffer ain't the displayed window.
3619 (let ((owin (selected-window)))
3620 (select-window (get-buffer-window gnus-group-buffer t))
3621 (when (gnus-group-goto-group group)
3622 (recenter))
3623 (select-window owin)))
3624 ;; Mark this buffer as "prepared".
3625 (setq gnus-newsgroup-prepared t)
6748645f 3626 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
3627 (unless (gnus-ephemeral-group-p group)
3628 (gnus-group-update-group group))
eec82323
LMI
3629 t)))))
3630
23f87bed
MB
3631(defun gnus-summary-auto-select-subject ()
3632 "Select the subject line on initial group entry."
3633 (goto-char (point-min))
3634 (cond
3635 ((eq gnus-auto-select-subject 'best)
3636 (gnus-summary-best-unread-subject))
3637 ((eq gnus-auto-select-subject 'unread)
3638 (gnus-summary-first-unread-subject))
3639 ((eq gnus-auto-select-subject 'unseen)
3640 (gnus-summary-first-unseen-subject))
3641 ((eq gnus-auto-select-subject 'unseen-or-unread)
3642 (gnus-summary-first-unseen-or-unread-subject))
3643 ((eq gnus-auto-select-subject 'first)
3644 ;; Do nothing.
3645 )
3646 ((functionp gnus-auto-select-subject)
3647 (funcall gnus-auto-select-subject))))
3648
eec82323
LMI
3649(defun gnus-summary-prepare ()
3650 "Generate the summary buffer."
3651 (interactive)
3652 (let ((buffer-read-only nil))
3653 (erase-buffer)
3654 (setq gnus-newsgroup-data nil
3655 gnus-newsgroup-data-reverse nil)
6748645f 3656 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
3657 ;; Generate the buffer, either with threads or without.
3658 (when gnus-newsgroup-headers
3659 (gnus-summary-prepare-threads
3660 (if gnus-show-threads
3661 (gnus-sort-gathered-threads
3662 (funcall gnus-summary-thread-gathering-function
3663 (gnus-sort-threads
3664 (gnus-cut-threads (gnus-make-threads)))))
3665 ;; Unthreaded display.
3666 (gnus-sort-articles gnus-newsgroup-headers))))
3667 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
3668 ;; Call hooks for modifying summary buffer.
3669 (goto-char (point-min))
6748645f 3670 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
3671
3672(defsubst gnus-general-simplify-subject (subject)
23f87bed 3673 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
3674 (setq subject
3675 (cond
3676 ;; Truncate the subject.
6748645f
LMI
3677 (gnus-simplify-subject-functions
3678 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
3679 ((numberp gnus-summary-gather-subject-limit)
3680 (setq subject (gnus-simplify-subject-re subject))
3681 (if (> (length subject) gnus-summary-gather-subject-limit)
3682 (substring subject 0 gnus-summary-gather-subject-limit)
3683 subject))
3684 ;; Fuzzily simplify it.
3685 ((eq 'fuzzy gnus-summary-gather-subject-limit)
3686 (gnus-simplify-subject-fuzzy subject))
3687 ;; Just remove the leading "Re:".
3688 (t
3689 (gnus-simplify-subject-re subject))))
3690
3691 (if (and gnus-summary-gather-exclude-subject
3692 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 3693 nil ; This article shouldn't be gathered
eec82323
LMI
3694 subject))
3695
3696(defun gnus-summary-simplify-subject-query ()
3697 "Query where the respool algorithm would put this article."
3698 (interactive)
eec82323
LMI
3699 (gnus-summary-select-article)
3700 (message (gnus-general-simplify-subject (gnus-summary-article-subject))))
3701
3702(defun gnus-gather-threads-by-subject (threads)
3703 "Gather threads by looking at Subject headers."
3704 (if (not gnus-summary-make-false-root)
3705 threads
3706 (let ((hashtb (gnus-make-hashtable 1024))
3707 (prev threads)
3708 (result threads)
3709 subject hthread whole-subject)
3710 (while threads
3711 (setq subject (gnus-general-simplify-subject
3712 (setq whole-subject (mail-header-subject
3713 (caar threads)))))
3714 (when subject
3715 (if (setq hthread (gnus-gethash subject hashtb))
3716 (progn
3717 ;; We enter a dummy root into the thread, if we
3718 ;; haven't done that already.
3719 (unless (stringp (caar hthread))
3720 (setcar hthread (list whole-subject (car hthread))))
3721 ;; We add this new gathered thread to this gathered
3722 ;; thread.
3723 (setcdr (car hthread)
3724 (nconc (cdar hthread) (list (car threads))))
3725 ;; Remove it from the list of threads.
3726 (setcdr prev (cdr threads))
3727 (setq threads prev))
3728 ;; Enter this thread into the hash table.
23f87bed
MB
3729 (gnus-sethash subject
3730 (if gnus-summary-make-false-root-always
3731 (progn
3732 ;; If you want a dummy root above all
3733 ;; threads...
3734 (setcar threads (list whole-subject
3735 (car threads)))
3736 threads)
3737 threads)
3738 hashtb)))
eec82323
LMI
3739 (setq prev threads)
3740 (setq threads (cdr threads)))
3741 result)))
3742
3743(defun gnus-gather-threads-by-references (threads)
3744 "Gather threads by looking at References headers."
3745 (let ((idhashtb (gnus-make-hashtable 1024))
3746 (thhashtb (gnus-make-hashtable 1024))
3747 (prev threads)
3748 (result threads)
3749 ids references id gthread gid entered ref)
3750 (while threads
3751 (when (setq references (mail-header-references (caar threads)))
3752 (setq id (mail-header-id (caar threads))
23f87bed 3753 ids (inline (gnus-split-references references))
eec82323
LMI
3754 entered nil)
3755 (while (setq ref (pop ids))
3756 (setq ids (delete ref ids))
3757 (if (not (setq gid (gnus-gethash ref idhashtb)))
3758 (progn
3759 (gnus-sethash ref id idhashtb)
3760 (gnus-sethash id threads thhashtb))
3761 (setq gthread (gnus-gethash gid thhashtb))
3762 (unless entered
3763 ;; We enter a dummy root into the thread, if we
3764 ;; haven't done that already.
3765 (unless (stringp (caar gthread))
3766 (setcar gthread (list (mail-header-subject (caar gthread))
3767 (car gthread))))
3768 ;; We add this new gathered thread to this gathered
3769 ;; thread.
3770 (setcdr (car gthread)
3771 (nconc (cdar gthread) (list (car threads)))))
3772 ;; Add it into the thread hash table.
3773 (gnus-sethash id gthread thhashtb)
3774 (setq entered t)
3775 ;; Remove it from the list of threads.
3776 (setcdr prev (cdr threads))
3777 (setq threads prev))))
3778 (setq prev threads)
3779 (setq threads (cdr threads)))
3780 result))
3781
3782(defun gnus-sort-gathered-threads (threads)
16409b0b 3783 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
3784 (let ((result threads))
3785 (while threads
3786 (when (stringp (caar threads))
3787 (setcdr (car threads)
16409b0b 3788 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
3789 (setq threads (cdr threads)))
3790 result))
3791
3792(defun gnus-thread-loop-p (root thread)
3793 "Say whether ROOT is in THREAD."
3794 (let ((stack (list thread))
3795 (infloop 0)
3796 th)
3797 (while (setq thread (pop stack))
3798 (setq th (cdr thread))
3799 (while (and th
3800 (not (eq (caar th) root)))
3801 (pop th))
3802 (if th
3803 ;; We have found a loop.
3804 (let (ref-dep)
3805 (setcdr thread (delq (car th) (cdr thread)))
3806 (if (boundp (setq ref-dep (intern "none"
3807 gnus-newsgroup-dependencies)))
3808 (setcdr (symbol-value ref-dep)
3809 (nconc (cdr (symbol-value ref-dep))
3810 (list (car th))))
3811 (set ref-dep (list nil (car th))))
3812 (setq infloop 1
3813 stack nil))
3814 ;; Push all the subthreads onto the stack.
3815 (push (cdr thread) stack)))
3816 infloop))
3817
3818(defun gnus-make-threads ()
3819 "Go through the dependency hashtb and find the roots. Return all threads."
3820 (let (threads)
3821 (while (catch 'infloop
3822 (mapatoms
3823 (lambda (refs)
3824 ;; Deal with self-referencing References loops.
3825 (when (and (car (symbol-value refs))
3826 (not (zerop
3827 (apply
3828 '+
3829 (mapcar
3830 (lambda (thread)
3831 (gnus-thread-loop-p
3832 (car (symbol-value refs)) thread))
3833 (cdr (symbol-value refs)))))))
3834 (setq threads nil)
3835 (throw 'infloop t))
3836 (unless (car (symbol-value refs))
23f87bed
MB
3837 ;; These threads do not refer back to any other
3838 ;; articles, so they're roots.
eec82323
LMI
3839 (setq threads (append (cdr (symbol-value refs)) threads))))
3840 gnus-newsgroup-dependencies)))
3841 threads))
3842
6748645f 3843;; Build the thread tree.
16409b0b 3844(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
3845 "Enter HEADER into the DEPENDENCIES table if it is not already there.
3846
3847If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
3848if it was already present.
3849
3850If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
3851will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
3852Message-IDs will be renamed to a unique Message-ID before being
3853entered.
6748645f
LMI
3854
3855Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
3856 (let* ((id (mail-header-id header))
3857 (id-dep (and id (intern id dependencies)))
23f87bed 3858 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
3859 ;; Enter this `header' in the `dependencies' table.
3860 (cond
3861 ((not id-dep)
3862 (setq header nil))
3863 ;; The first two cases do the normal part: enter a new `header'
3864 ;; in the `dependencies' table.
3865 ((not (boundp id-dep))
3866 (set id-dep (list header)))
3867 ((null (car (symbol-value id-dep)))
3868 (setcar (symbol-value id-dep) header))
3869
3870 ;; From here the `header' was already present in the
3871 ;; `dependencies' table.
3872 (force-new
3873 ;; Overrides an existing entry;
3874 ;; just set the header part of the entry.
23f87bed
MB
3875 (setcar (symbol-value id-dep) header)
3876 (setq replaced t))
6748645f
LMI
3877
3878 ;; Renames the existing `header' to a unique Message-ID.
3879 ((not gnus-summary-ignore-duplicates)
3880 ;; An article with this Message-ID has already been seen.
3881 ;; We rename the Message-ID.
3882 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
3883 (list header))
3884 (mail-header-set-id header id))
3885
3886 ;; The last case ignores an existing entry, except it adds any
3887 ;; additional Xrefs (in case the two articles came from different
3888 ;; servers.
3889 ;; Also sets `header' to `nil' meaning that the `dependencies'
3890 ;; table was *not* modified.
3891 (t
3892 (mail-header-set-xref
3893 (car (symbol-value id-dep))
3894 (concat (or (mail-header-xref (car (symbol-value id-dep)))
3895 "")
3896 (or (mail-header-xref header) "")))
3897 (setq header nil)))
3898
23f87bed
MB
3899 (when (and header (not replaced))
3900 ;; First check that we are not creating a References loop.
3901 (setq parent-id (gnus-parent-id (mail-header-references header)))
3902 (setq ref parent-id)
6748645f
LMI
3903 (while (and ref
3904 (setq ref-dep (intern-soft ref dependencies))
3905 (boundp ref-dep)
3906 (setq ref-header (car (symbol-value ref-dep))))
3907 (if (string= id ref)
3908 ;; Yuk! This is a reference loop. Make the article be a
3909 ;; root article.
3910 (progn
3911 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
3912 (setq ref nil)
3913 (setq parent-id nil))
6748645f 3914 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 3915 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
3916 (if (boundp ref-dep)
3917 (setcdr (symbol-value ref-dep)
3918 (nconc (cdr (symbol-value ref-dep))
3919 (list (symbol-value id-dep))))
3920 (set ref-dep (list nil (symbol-value id-dep)))))
3921 header))
3922
23f87bed
MB
3923(defun gnus-extract-message-id-from-in-reply-to (string)
3924 (if (string-match "<[^>]+>" string)
3925 (substring string (match-beginning 0) (match-end 0))
3926 nil))
3927
eec82323
LMI
3928(defun gnus-build-sparse-threads ()
3929 (let ((headers gnus-newsgroup-headers)
16409b0b 3930 (mail-parse-charset gnus-newsgroup-charset)
6748645f 3931 (gnus-summary-ignore-duplicates t)
eec82323 3932 header references generation relations
6748645f 3933 subject child end new-child date)
eec82323
LMI
3934 ;; First we create an alist of generations/relations, where
3935 ;; generations is how much we trust the relation, and the relation
3936 ;; is parent/child.
3937 (gnus-message 7 "Making sparse threads...")
3938 (save-excursion
3939 (nnheader-set-temp-buffer " *gnus sparse threads*")
3940 (while (setq header (pop headers))
3941 (when (and (setq references (mail-header-references header))
3942 (not (string= references "")))
3943 (insert references)
3944 (setq child (mail-header-id header)
6748645f
LMI
3945 subject (mail-header-subject header)
3946 date (mail-header-date header)
3947 generation 0)
eec82323
LMI
3948 (while (search-backward ">" nil t)
3949 (setq end (1+ (point)))
3950 (when (search-backward "<" nil t)
6748645f 3951 (setq new-child (buffer-substring (point) end))
eec82323 3952 (push (list (incf generation)
6748645f
LMI
3953 child (setq child new-child)
3954 subject date)
eec82323 3955 relations)))
6748645f
LMI
3956 (when child
3957 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
3958 (erase-buffer)))
3959 (kill-buffer (current-buffer)))
3960 ;; Sort over trustworthiness.
6748645f
LMI
3961 (mapcar
3962 (lambda (relation)
3963 (when (gnus-dependencies-add-header
3964 (make-full-mail-header
3965 gnus-reffed-article-number
3966 (nth 3 relation) "" (or (nth 4 relation) "")
3967 (nth 1 relation)
3968 (or (nth 2 relation) "") 0 0 "")
3969 gnus-newsgroup-dependencies nil)
3970 (push gnus-reffed-article-number gnus-newsgroup-limit)
3971 (push gnus-reffed-article-number gnus-newsgroup-sparse)
3972 (push (cons gnus-reffed-article-number gnus-sparse-mark)
3973 gnus-newsgroup-reads)
3974 (decf gnus-reffed-article-number)))
3975 (sort relations 'car-less-than-car))
eec82323
LMI
3976 (gnus-message 7 "Making sparse threads...done")))
3977
3978(defun gnus-build-old-threads ()
3979 ;; Look at all the articles that refer back to old articles, and
3980 ;; fetch the headers for the articles that aren't there. This will
3981 ;; build complete threads - if the roots haven't been expired by the
3982 ;; server, that is.
16409b0b
GM
3983 (let ((mail-parse-charset gnus-newsgroup-charset)
3984 id heads)
eec82323
LMI
3985 (mapatoms
3986 (lambda (refs)
3987 (when (not (car (symbol-value refs)))
3988 (setq heads (cdr (symbol-value refs)))
3989 (while heads
3990 (if (memq (mail-header-number (caar heads))
3991 gnus-newsgroup-dormant)
3992 (setq heads (cdr heads))
3993 (setq id (symbol-name refs))
3994 (while (and (setq id (gnus-build-get-header id))
6748645f 3995 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
3996 (setq heads nil)))))
3997 gnus-newsgroup-dependencies)))
3998
23f87bed
MB
3999(defsubst gnus-remove-odd-characters (string)
4000 "Translate STRING into something that doesn't contain weird characters."
4001 (mm-subst-char-in-string
4002 ?\r ?\-
4003 (mm-subst-char-in-string
4004 ?\n ?\- string)))
4005
6748645f
LMI
4006;; This function has to be called with point after the article number
4007;; on the beginning of the line.
4008(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
4009 (let ((eol (gnus-point-at-eol))
4010 (buffer (current-buffer))
23f87bed 4011 header references in-reply-to)
6748645f
LMI
4012
4013 ;; overview: [num subject from date id refs chars lines misc]
4014 (unwind-protect
23f87bed 4015 (let (x)
6748645f
LMI
4016 (narrow-to-region (point) eol)
4017 (unless (eobp)
4018 (forward-char))
4019
4020 (setq header
4021 (make-full-mail-header
4022 number ; number
23f87bed
MB
4023 (condition-case () ; subject
4024 (gnus-remove-odd-characters
4025 (funcall gnus-decode-encoded-word-function
4026 (setq x (nnheader-nov-field))))
4027 (error x))
4028 (condition-case () ; from
4029 (gnus-remove-odd-characters
4030 (funcall gnus-decode-encoded-word-function
4031 (setq x (nnheader-nov-field))))
4032 (error x))
16409b0b
GM
4033 (nnheader-nov-field) ; date
4034 (nnheader-nov-read-message-id) ; id
23f87bed 4035 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4036 (nnheader-nov-read-integer) ; chars
4037 (nnheader-nov-read-integer) ; lines
4038 (unless (eobp)
8b93df01
DL
4039 (if (looking-at "Xref: ")
4040 (goto-char (match-end 0)))
4041 (nnheader-nov-field)) ; Xref
16409b0b 4042 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4043
4044 (widen))
4045
23f87bed
MB
4046 (when (and (string= references "")
4047 (setq in-reply-to (mail-header-extra header))
4048 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4049 (mail-header-set-references
4050 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4051
6748645f
LMI
4052 (when gnus-alter-header-function
4053 (funcall gnus-alter-header-function header))
4054 (gnus-dependencies-add-header header dependencies force-new)))
4055
eec82323 4056(defun gnus-build-get-header (id)
16409b0b
GM
4057 "Look through the buffer of NOV lines and find the header to ID.
4058Enter this line into the dependencies hash table, and return
4059the id of the parent article (if any)."
eec82323
LMI
4060 (let ((deps gnus-newsgroup-dependencies)
4061 found header)
4062 (prog1
4063 (save-excursion
4064 (set-buffer nntp-server-buffer)
4065 (let ((case-fold-search nil))
4066 (goto-char (point-min))
4067 (while (and (not found)
4068 (search-forward id nil t))
4069 (beginning-of-line)
4070 (setq found (looking-at
4071 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4072 (regexp-quote id))))
4073 (or found (beginning-of-line 2)))
4074 (when found
4075 (beginning-of-line)
4076 (and
4077 (setq header (gnus-nov-parse-line
4078 (read (current-buffer)) deps))
4079 (gnus-parent-id (mail-header-references header))))))
4080 (when header
4081 (let ((number (mail-header-number header)))
4082 (push number gnus-newsgroup-limit)
4083 (push header gnus-newsgroup-headers)
4084 (if (memq number gnus-newsgroup-unselected)
4085 (progn
23f87bed
MB
4086 (setq gnus-newsgroup-unreads
4087 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4088 number))
eec82323
LMI
4089 (setq gnus-newsgroup-unselected
4090 (delq number gnus-newsgroup-unselected)))
4091 (push number gnus-newsgroup-ancient)))))))
4092
6748645f
LMI
4093(defun gnus-build-all-threads ()
4094 "Read all the headers."
4095 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4096 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4097 (dependencies gnus-newsgroup-dependencies)
4098 header article)
4099 (save-excursion
4100 (set-buffer nntp-server-buffer)
4101 (let ((case-fold-search nil))
4102 (goto-char (point-min))
4103 (while (not (eobp))
4104 (ignore-errors
4105 (setq article (read (current-buffer))
16409b0b 4106 header (gnus-nov-parse-line article dependencies)))
6748645f
LMI
4107 (when header
4108 (save-excursion
4109 (set-buffer gnus-summary-buffer)
4110 (push header gnus-newsgroup-headers)
4111 (if (memq (setq article (mail-header-number header))
4112 gnus-newsgroup-unselected)
4113 (progn
23f87bed
MB
4114 (setq gnus-newsgroup-unreads
4115 (gnus-add-to-sorted-list
4116 gnus-newsgroup-unreads article))
6748645f
LMI
4117 (setq gnus-newsgroup-unselected
4118 (delq article gnus-newsgroup-unselected)))
4119 (push article gnus-newsgroup-ancient)))
4120 (forward-line 1)))))))
4121
eec82323 4122(defun gnus-summary-update-article-line (article header)
23f87bed 4123 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4124 (let* ((id (mail-header-id header))
4125 (thread (gnus-id-to-thread id)))
4126 (unless thread
4127 (error "Article in no thread"))
4128 ;; Update the thread.
4129 (setcar thread header)
4130 (gnus-summary-goto-subject article)
4131 (let* ((datal (gnus-data-find-list article))
4132 (data (car datal))
eec82323
LMI
4133 (buffer-read-only nil)
4134 (level (gnus-summary-thread-level)))
4135 (gnus-delete-line)
23f87bed
MB
4136 (let ((inserted (- (point)
4137 (progn
4138 (gnus-summary-insert-line
4139 header level nil
4140 (memq article gnus-newsgroup-undownloaded)
4141 (gnus-article-mark article)
4142 (memq article gnus-newsgroup-replied)
4143 (memq article gnus-newsgroup-expirable)
4144 ;; Only insert the Subject string when it's different
4145 ;; from the previous Subject string.
4146 (if (and
4147 gnus-show-threads
4148 (gnus-subject-equal
4149 (condition-case ()
4150 (mail-header-subject
4151 (gnus-data-header
4152 (cadr
4153 (gnus-data-find-list
4154 article
4155 (gnus-data-list t)))))
4156 ;; Error on the side of excessive subjects.
4157 (error ""))
4158 (mail-header-subject header)))
4159 ""
4160 (mail-header-subject header))
4161 nil (cdr (assq article gnus-newsgroup-scored))
4162 (memq article gnus-newsgroup-processable))
4163 (point)))))
4164 (when (cdr datal)
4165 (gnus-data-update-list
4166 (cdr datal)
4167 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4168
4169(defun gnus-summary-update-article (article &optional iheader)
4170 "Update ARTICLE in the summary buffer."
4171 (set-buffer gnus-summary-buffer)
6748645f 4172 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4173 (id (mail-header-id header))
4174 (data (gnus-data-find article))
4175 (thread (gnus-id-to-thread id))
4176 (references (mail-header-references header))
4177 (parent
4178 (gnus-id-to-thread
4179 (or (gnus-parent-id
4180 (when (and references
4181 (not (equal "" references)))
4182 references))
4183 "none")))
4184 (buffer-read-only nil)
6748645f 4185 (old (car thread)))
eec82323 4186 (when thread
eec82323 4187 (unless iheader
6748645f
LMI
4188 (setcar thread nil)
4189 (when parent
4190 (delq thread parent)))
4191 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4192 ;; Set the (possibly) new article number in the data structure.
4193 (gnus-data-set-number data (gnus-id-to-article id))
4194 (setcar thread old)
4195 nil))))
4196
6748645f
LMI
4197(defun gnus-rebuild-thread (id &optional line)
4198 "Rebuild the thread containing ID.
4199If LINE, insert the rebuilt thread starting on line LINE."
eec82323
LMI
4200 (let ((buffer-read-only nil)
4201 old-pos current thread data)
4202 (if (not gnus-show-threads)
4203 (setq thread (list (car (gnus-id-to-thread id))))
4204 ;; Get the thread this article is part of.
4205 (setq thread (gnus-remove-thread id)))
4206 (setq old-pos (gnus-point-at-bol))
4207 (setq current (save-excursion
94384150 4208 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4209 (gnus-summary-article-number))))
4210 ;; If this is a gathered thread, we have to go some re-gathering.
4211 (when (stringp (car thread))
4212 (let ((subject (car thread))
4213 roots thr)
4214 (setq thread (cdr thread))
4215 (while thread
4216 (unless (memq (setq thr (gnus-id-to-thread
4217 (gnus-root-id
4218 (mail-header-id (caar thread)))))
4219 roots)
4220 (push thr roots))
4221 (setq thread (cdr thread)))
4222 ;; We now have all (unique) roots.
4223 (if (= (length roots) 1)
4224 ;; All the loose roots are now one solid root.
4225 (setq thread (car roots))
4226 (setq thread (cons subject (gnus-sort-threads roots))))))
4227 (let (threads)
4228 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4229 (when line
4230 (goto-char (point-min))
4231 (forward-line (1- line)))
eec82323
LMI
4232 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4233 (if gnus-show-threads
4234 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4235 (gnus-summary-prepare-unthreaded thread))
4236 (setq data (nreverse gnus-newsgroup-data))
4237 (setq threads gnus-newsgroup-threads))
4238 ;; We splice the new data into the data structure.
6748645f
LMI
4239 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4240 ;;!!! then we want to insert at the beginning of the buffer.
4241 ;;!!! That happens to be true with Gnus now, but that may
4242 ;;!!! change in the future. Perhaps.
4243 (gnus-data-enter-list
4244 (if line nil current) data (- (point) old-pos))
4245 (setq gnus-newsgroup-threads
4246 (nconc threads gnus-newsgroup-threads))
4247 (gnus-data-compute-positions))))
eec82323
LMI
4248
4249(defun gnus-number-to-header (number)
4250 "Return the header for article NUMBER."
4251 (let ((headers gnus-newsgroup-headers))
4252 (while (and headers
4253 (not (= number (mail-header-number (car headers)))))
4254 (pop headers))
4255 (when headers
4256 (car headers))))
4257
6748645f 4258(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4259 "Return the headers of the GENERATIONeth parent of HEADERS."
4260 (unless generation
4261 (setq generation 1))
a8151ef7 4262 (let ((parent t)
6748645f 4263 (headers in-headers)
a8151ef7 4264 references)
6748645f
LMI
4265 (while (and parent
4266 (not (zerop generation))
4267 (setq references (mail-header-references headers)))
4268 (setq headers (if (and references
4269 (setq parent (gnus-parent-id references)))
4270 (car (gnus-id-to-thread parent))
4271 nil))
4272 (decf generation))
4273 (and (not (eq headers in-headers))
4274 headers)))
eec82323
LMI
4275
4276(defun gnus-id-to-thread (id)
4277 "Return the (sub-)thread where ID appears."
4278 (gnus-gethash id gnus-newsgroup-dependencies))
4279
4280(defun gnus-id-to-article (id)
4281 "Return the article number of ID."
4282 (let ((thread (gnus-id-to-thread id)))
4283 (when (and thread
4284 (car thread))
4285 (mail-header-number (car thread)))))
4286
4287(defun gnus-id-to-header (id)
4288 "Return the article headers of ID."
4289 (car (gnus-id-to-thread id)))
4290
4291(defun gnus-article-displayed-root-p (article)
4292 "Say whether ARTICLE is a root(ish) article."
4293 (let ((level (gnus-summary-thread-level article))
4294 (refs (mail-header-references (gnus-summary-article-header article)))
4295 particle)
4296 (cond
4297 ((null level) nil)
4298 ((zerop level) t)
4299 ((null refs) t)
4300 ((null (gnus-parent-id refs)) t)
4301 ((and (= 1 level)
4302 (null (setq particle (gnus-id-to-article
4303 (gnus-parent-id refs))))
4304 (null (gnus-summary-thread-level particle)))))))
4305
4306(defun gnus-root-id (id)
4307 "Return the id of the root of the thread where ID appears."
4308 (let (last-id prev)
6748645f 4309 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4310 (setq last-id id
4311 id (gnus-parent-id (mail-header-references prev))))
4312 last-id))
4313
6748645f
LMI
4314(defun gnus-articles-in-thread (thread)
4315 "Return the list of articles in THREAD."
4316 (cons (mail-header-number (car thread))
4317 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4318
eec82323
LMI
4319(defun gnus-remove-thread (id &optional dont-remove)
4320 "Remove the thread that has ID in it."
6748645f 4321 (let (headers thread last-id)
eec82323 4322 ;; First go up in this thread until we find the root.
6748645f
LMI
4323 (setq last-id (gnus-root-id id)
4324 headers (message-flatten-list (gnus-id-to-thread last-id)))
eec82323
LMI
4325 ;; We have now found the real root of this thread. It might have
4326 ;; been gathered into some loose thread, so we have to search
4327 ;; through the threads to find the thread we wanted.
4328 (let ((threads gnus-newsgroup-threads)
4329 sub)
4330 (while threads
4331 (setq sub (car threads))
4332 (if (stringp (car sub))
4333 ;; This is a gathered thread, so we look at the roots
4334 ;; below it to find whether this article is in this
4335 ;; gathered root.
4336 (progn
4337 (setq sub (cdr sub))
4338 (while sub
4339 (when (member (caar sub) headers)
4340 (setq thread (car threads)
4341 threads nil
4342 sub nil))
4343 (setq sub (cdr sub))))
4344 ;; It's an ordinary thread, so we check it.
4345 (when (eq (car sub) (car headers))
4346 (setq thread sub
4347 threads nil)))
4348 (setq threads (cdr threads)))
4349 ;; If this article is in no thread, then it's a root.
4350 (if thread
4351 (unless dont-remove
4352 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4353 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4354 (when thread
4355 (prog1
4356 thread ; We return this thread.
4357 (unless dont-remove
4358 (if (stringp (car thread))
4359 (progn
4360 ;; If we use dummy roots, then we have to remove the
4361 ;; dummy root as well.
4362 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4363 ;; We go to the dummy root by going to
4364 ;; the first sub-"thread", and then one line up.
4365 (gnus-summary-goto-article
4366 (mail-header-number (caadr thread)))
4367 (forward-line -1)
eec82323
LMI
4368 (gnus-delete-line)
4369 (gnus-data-compute-positions))
4370 (setq thread (cdr thread))
4371 (while thread
4372 (gnus-remove-thread-1 (car thread))
4373 (setq thread (cdr thread))))
4374 (gnus-remove-thread-1 thread))))))))
4375
4376(defun gnus-remove-thread-1 (thread)
4377 "Remove the thread THREAD recursively."
4378 (let ((number (mail-header-number (pop thread)))
4379 d)
4380 (setq thread (reverse thread))
4381 (while thread
4382 (gnus-remove-thread-1 (pop thread)))
4383 (when (setq d (gnus-data-find number))
4384 (goto-char (gnus-data-pos d))
16409b0b 4385 (gnus-summary-show-thread)
eec82323
LMI
4386 (gnus-data-remove
4387 number
4388 (- (gnus-point-at-bol)
4389 (prog1
4390 (1+ (gnus-point-at-eol))
4391 (gnus-delete-line)))))))
4392
16409b0b
GM
4393(defun gnus-sort-threads-1 (threads func)
4394 (sort (mapcar (lambda (thread)
4395 (cons (car thread)
4396 (and (cdr thread)
4397 (gnus-sort-threads-1 (cdr thread) func))))
4398 threads) func))
4399
eec82323
LMI
4400(defun gnus-sort-threads (threads)
4401 "Sort THREADS."
4402 (if (not gnus-thread-sort-functions)
4403 threads
6748645f 4404 (gnus-message 8 "Sorting threads...")
23f87bed
MB
4405 (let ((max-lisp-eval-depth 5000))
4406 (prog1 (gnus-sort-threads-1
a1506d29 4407 threads
16409b0b 4408 (gnus-make-sort-function gnus-thread-sort-functions))
23f87bed 4409 (gnus-message 8 "Sorting threads...done")))))
eec82323
LMI
4410
4411(defun gnus-sort-articles (articles)
4412 "Sort ARTICLES."
4413 (when gnus-article-sort-functions
4414 (gnus-message 7 "Sorting articles...")
4415 (prog1
4416 (setq gnus-newsgroup-headers
4417 (sort articles (gnus-make-sort-function
4418 gnus-article-sort-functions)))
4419 (gnus-message 7 "Sorting articles...done"))))
4420
4421;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4422(defmacro gnus-thread-header (thread)
16409b0b
GM
4423 "Return header of first article in THREAD.
4424Note that THREAD must never, ever be anything else than a variable -
4425using some other form will lead to serious barfage."
eec82323
LMI
4426 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4427 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4428 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4429 (vector thread) 2))
4430
4431(defsubst gnus-article-sort-by-number (h1 h2)
4432 "Sort articles by article number."
4433 (< (mail-header-number h1)
4434 (mail-header-number h2)))
4435
4436(defun gnus-thread-sort-by-number (h1 h2)
4437 "Sort threads by root article number."
4438 (gnus-article-sort-by-number
4439 (gnus-thread-header h1) (gnus-thread-header h2)))
4440
23f87bed
MB
4441(defsubst gnus-article-sort-by-random (h1 h2)
4442 "Sort articles by article number."
4443 (zerop (random 2)))
4444
4445(defun gnus-thread-sort-by-random (h1 h2)
4446 "Sort threads by root article number."
4447 (gnus-article-sort-by-random
4448 (gnus-thread-header h1) (gnus-thread-header h2)))
4449
eec82323
LMI
4450(defsubst gnus-article-sort-by-lines (h1 h2)
4451 "Sort articles by article Lines header."
4452 (< (mail-header-lines h1)
4453 (mail-header-lines h2)))
4454
4455(defun gnus-thread-sort-by-lines (h1 h2)
4456 "Sort threads by root article Lines header."
4457 (gnus-article-sort-by-lines
4458 (gnus-thread-header h1) (gnus-thread-header h2)))
4459
16409b0b
GM
4460(defsubst gnus-article-sort-by-chars (h1 h2)
4461 "Sort articles by octet length."
4462 (< (mail-header-chars h1)
4463 (mail-header-chars h2)))
4464
4465(defun gnus-thread-sort-by-chars (h1 h2)
4466 "Sort threads by root article octet length."
4467 (gnus-article-sort-by-chars
4468 (gnus-thread-header h1) (gnus-thread-header h2)))
4469
eec82323
LMI
4470(defsubst gnus-article-sort-by-author (h1 h2)
4471 "Sort articles by root author."
4472 (string-lessp
4473 (let ((extract (funcall
4474 gnus-extract-address-components
4475 (mail-header-from h1))))
4476 (or (car extract) (cadr extract) ""))
4477 (let ((extract (funcall
4478 gnus-extract-address-components
4479 (mail-header-from h2))))
4480 (or (car extract) (cadr extract) ""))))
4481
4482(defun gnus-thread-sort-by-author (h1 h2)
4483 "Sort threads by root author."
4484 (gnus-article-sort-by-author
4485 (gnus-thread-header h1) (gnus-thread-header h2)))
4486
4487(defsubst gnus-article-sort-by-subject (h1 h2)
4488 "Sort articles by root subject."
4489 (string-lessp
4490 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4491 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4492
4493(defun gnus-thread-sort-by-subject (h1 h2)
4494 "Sort threads by root subject."
4495 (gnus-article-sort-by-subject
4496 (gnus-thread-header h1) (gnus-thread-header h2)))
4497
4498(defsubst gnus-article-sort-by-date (h1 h2)
4499 "Sort articles by root article date."
16409b0b 4500 (time-less-p
eec82323
LMI
4501 (gnus-date-get-time (mail-header-date h1))
4502 (gnus-date-get-time (mail-header-date h2))))
4503
4504(defun gnus-thread-sort-by-date (h1 h2)
4505 "Sort threads by root article date."
4506 (gnus-article-sort-by-date
4507 (gnus-thread-header h1) (gnus-thread-header h2)))
4508
4509(defsubst gnus-article-sort-by-score (h1 h2)
4510 "Sort articles by root article score.
4511Unscored articles will be counted as having a score of zero."
4512 (> (or (cdr (assq (mail-header-number h1)
4513 gnus-newsgroup-scored))
4514 gnus-summary-default-score 0)
4515 (or (cdr (assq (mail-header-number h2)
4516 gnus-newsgroup-scored))
4517 gnus-summary-default-score 0)))
4518
4519(defun gnus-thread-sort-by-score (h1 h2)
4520 "Sort threads by root article score."
4521 (gnus-article-sort-by-score
4522 (gnus-thread-header h1) (gnus-thread-header h2)))
4523
4524(defun gnus-thread-sort-by-total-score (h1 h2)
4525 "Sort threads by the sum of all scores in the thread.
4526Unscored articles will be counted as having a score of zero."
4527 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4528
4529(defun gnus-thread-total-score (thread)
16409b0b 4530 ;; This function find the total score of THREAD.
23f87bed
MB
4531 (cond
4532 ((null thread)
4533 0)
4534 ((consp thread)
4535 (if (stringp (car thread))
4536 (apply gnus-thread-score-function 0
4537 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4538 (gnus-thread-total-score-1 thread)))
4539 (t
4540 (gnus-thread-total-score-1 (list thread)))))
4541
4542(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4543 "Sort threads such that the thread with the most recently arrived article comes first."
4544 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4545
4546(defun gnus-thread-highest-number (thread)
4547 "Return the highest article number in THREAD."
4548 (apply 'max (mapcar (lambda (header)
4549 (mail-header-number header))
4550 (message-flatten-list thread))))
4551
4552(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4553 "Sort threads such that the thread with the most recently dated article comes first."
4554 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4555
4556(defun gnus-thread-latest-date (thread)
4557 "Return the highest article date in THREAD."
4558 (let ((previous-time 0))
4559 (apply 'max
4560 (mapcar
4561 (lambda (header)
4562 (setq previous-time
4563 (condition-case ()
4564 (time-to-seconds (mail-header-parse-date
4565 (mail-header-date header)))
4566 (error previous-time))))
4567 (sort
4568 (message-flatten-list thread)
4569 (lambda (h1 h2)
4570 (< (mail-header-number h1)
4571 (mail-header-number h2))))))))
eec82323
LMI
4572
4573(defun gnus-thread-total-score-1 (root)
4574 ;; This function find the total score of the thread below ROOT.
4575 (setq root (car root))
4576 (apply gnus-thread-score-function
4577 (or (append
4578 (mapcar 'gnus-thread-total-score
6748645f 4579 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
4580 (when (> (mail-header-number root) 0)
4581 (list (or (cdr (assq (mail-header-number root)
4582 gnus-newsgroup-scored))
4583 gnus-summary-default-score 0))))
4584 (list gnus-summary-default-score)
4585 '(0))))
4586
4587;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
4588(defvar gnus-tmp-prev-subject nil)
4589(defvar gnus-tmp-false-parent nil)
4590(defvar gnus-tmp-root-expunged nil)
4591(defvar gnus-tmp-dummy-line nil)
4592
60bd5589 4593(eval-when-compile (defvar gnus-tmp-header))
16409b0b
GM
4594(defun gnus-extra-header (type &optional header)
4595 "Return the extra header of TYPE."
4596 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
4597 ""))
4598
23f87bed
MB
4599(defvar gnus-tmp-thread-tree-header-string "")
4600
4601(defcustom gnus-sum-thread-tree-root "> "
4602 "With %B spec, used for the root of a thread.
4603If nil, use subject instead."
a08b59c9 4604 :version "21.4"
23f87bed
MB
4605 :type '(radio (const :format "%v " nil) (string :size 0))
4606 :group 'gnus-thread)
4607(defcustom gnus-sum-thread-tree-false-root "> "
4608 "With %B spec, used for a false root of a thread.
4609If nil, use subject instead."
a08b59c9 4610 :version "21.4"
23f87bed
MB
4611 :type '(radio (const :format "%v " nil) (string :size 0))
4612 :group 'gnus-thread)
4613(defcustom gnus-sum-thread-tree-single-indent ""
4614 "With %B spec, used for a thread with just one message.
4615If nil, use subject instead."
a08b59c9 4616 :version "21.4"
23f87bed
MB
4617 :type '(radio (const :format "%v " nil) (string :size 0))
4618 :group 'gnus-thread)
4619(defcustom gnus-sum-thread-tree-vertical "| "
4620 "With %B spec, used for drawing a vertical line."
a08b59c9 4621 :version "21.4"
23f87bed
MB
4622 :type 'string
4623 :group 'gnus-thread)
4624(defcustom gnus-sum-thread-tree-indent " "
4625 "With %B spec, used for indenting."
a08b59c9 4626 :version "21.4"
23f87bed
MB
4627 :type 'string
4628 :group 'gnus-thread)
4629(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
4630 "With %B spec, used for a leaf with brothers."
a08b59c9 4631 :version "21.4"
23f87bed
MB
4632 :type 'string
4633 :group 'gnus-thread)
4634(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
4635 "With %B spec, used for a leaf without brothers."
a08b59c9 4636 :version "21.4"
23f87bed
MB
4637 :type 'string
4638 :group 'gnus-thread)
4639
eec82323
LMI
4640(defun gnus-summary-prepare-threads (threads)
4641 "Prepare summary buffer from THREADS and indentation LEVEL.
4642THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
4643or a straight list of headers."
4644 (gnus-message 7 "Generating summary...")
4645
4646 (setq gnus-newsgroup-threads threads)
4647 (beginning-of-line)
4648
4649 (let ((gnus-tmp-level 0)
4650 (default-score (or gnus-summary-default-score 0))
4651 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
4652 (building-line-count gnus-summary-display-while-building)
4653 (building-count (integerp gnus-summary-display-while-building))
eec82323 4654 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
4655 new-roots gnus-tmp-new-adopts thread-end simp-subject
4656 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
4657 gnus-tmp-replied gnus-tmp-subject-or-nil
4658 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
4659 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
4660 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
4661 tree-stack)
eec82323 4662
23f87bed
MB
4663 (setq gnus-tmp-prev-subject nil
4664 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
4665
4666 (if (vectorp (car threads))
4667 ;; If this is a straight (sic) list of headers, then a
4668 ;; threaded summary display isn't required, so we just create
4669 ;; an unthreaded one.
4670 (gnus-summary-prepare-unthreaded threads)
4671
4672 ;; Do the threaded display.
4673
23f87bed
MB
4674 (if gnus-summary-display-while-building
4675 (switch-to-buffer (buffer-name)))
eec82323
LMI
4676 (while (or threads stack gnus-tmp-new-adopts new-roots)
4677
4678 (if (and (= gnus-tmp-level 0)
eec82323
LMI
4679 (or (not stack)
4680 (= (caar stack) 0))
4681 (not gnus-tmp-false-parent)
4682 (or gnus-tmp-new-adopts new-roots))
4683 (if gnus-tmp-new-adopts
4684 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
4685 thread (list (car gnus-tmp-new-adopts))
4686 gnus-tmp-header (caar thread)
4687 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
4688 (when new-roots
4689 (setq thread (list (car new-roots))
4690 gnus-tmp-header (caar thread)
4691 new-roots (cdr new-roots))))
4692
4693 (if threads
4694 ;; If there are some threads, we do them before the
4695 ;; threads on the stack.
4696 (setq thread threads
4697 gnus-tmp-header (caar thread))
4698 ;; There were no current threads, so we pop something off
4699 ;; the stack.
4700 (setq state (car stack)
4701 gnus-tmp-level (car state)
23f87bed
MB
4702 tree-stack (cadr state)
4703 thread (caddr state)
eec82323
LMI
4704 stack (cdr stack)
4705 gnus-tmp-header (caar thread))))
4706
4707 (setq gnus-tmp-false-parent nil)
4708 (setq gnus-tmp-root-expunged nil)
4709 (setq thread-end nil)
4710
4711 (if (stringp gnus-tmp-header)
4712 ;; The header is a dummy root.
4713 (cond
4714 ((eq gnus-summary-make-false-root 'adopt)
4715 ;; We let the first article adopt the rest.
4716 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
4717 (cddar thread)))
4718 (setq gnus-tmp-gathered
4719 (nconc (mapcar
4720 (lambda (h) (mail-header-number (car h)))
4721 (cddar thread))
4722 gnus-tmp-gathered))
4723 (setq thread (cons (list (caar thread)
4724 (cadar thread))
4725 (cdr thread)))
4726 (setq gnus-tmp-level -1
4727 gnus-tmp-false-parent t))
4728 ((eq gnus-summary-make-false-root 'empty)
4729 ;; We print adopted articles with empty subject fields.
4730 (setq gnus-tmp-gathered
4731 (nconc (mapcar
4732 (lambda (h) (mail-header-number (car h)))
4733 (cddar thread))
4734 gnus-tmp-gathered))
4735 (setq gnus-tmp-level -1))
4736 ((eq gnus-summary-make-false-root 'dummy)
4737 ;; We remember that we probably want to output a dummy
4738 ;; root.
4739 (setq gnus-tmp-dummy-line gnus-tmp-header)
4740 (setq gnus-tmp-prev-subject gnus-tmp-header))
4741 (t
4742 ;; We do not make a root for the gathered
4743 ;; sub-threads at all.
4744 (setq gnus-tmp-level -1)))
4745
4746 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
4747 subject (mail-header-subject gnus-tmp-header)
4748 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
4749
4750 (cond
4751 ;; If the thread has changed subject, we might want to make
4752 ;; this subthread into a root.
4753 ((and (null gnus-thread-ignore-subject)
4754 (not (zerop gnus-tmp-level))
4755 gnus-tmp-prev-subject
23f87bed 4756 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4757 (setq new-roots (nconc new-roots (list (car thread)))
4758 thread-end t
4759 gnus-tmp-header nil))
4760 ;; If the article lies outside the current limit,
4761 ;; then we do not display it.
4762 ((not (memq number gnus-newsgroup-limit))
4763 (setq gnus-tmp-gathered
4764 (nconc (mapcar
4765 (lambda (h) (mail-header-number (car h)))
4766 (cdar thread))
4767 gnus-tmp-gathered))
4768 (setq gnus-tmp-new-adopts (if (cdar thread)
4769 (append gnus-tmp-new-adopts
4770 (cdar thread))
4771 gnus-tmp-new-adopts)
4772 thread-end t
4773 gnus-tmp-header nil)
4774 (when (zerop gnus-tmp-level)
4775 (setq gnus-tmp-root-expunged t)))
4776 ;; Perhaps this article is to be marked as read?
4777 ((and gnus-summary-mark-below
4778 (< (or (cdr (assq number gnus-newsgroup-scored))
4779 default-score)
4780 gnus-summary-mark-below)
4781 ;; Don't touch sparse articles.
4782 (not (gnus-summary-article-sparse-p number))
4783 (not (gnus-summary-article-ancient-p number)))
4784 (setq gnus-newsgroup-unreads
4785 (delq number gnus-newsgroup-unreads))
4786 (if gnus-newsgroup-auto-expire
23f87bed
MB
4787 (setq gnus-newsgroup-expirable
4788 (gnus-add-to-sorted-list
4789 gnus-newsgroup-expirable number))
eec82323
LMI
4790 (push (cons number gnus-low-score-mark)
4791 gnus-newsgroup-reads))))
4792
4793 (when gnus-tmp-header
4794 ;; We may have an old dummy line to output before this
4795 ;; article.
6748645f
LMI
4796 (when (and gnus-tmp-dummy-line
4797 (gnus-subject-equal
4798 gnus-tmp-dummy-line
4799 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
4800 (gnus-summary-insert-dummy-line
4801 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
4802 (setq gnus-tmp-dummy-line nil))
4803
4804 ;; Compute the mark.
4805 (setq gnus-tmp-unread (gnus-article-mark number))
4806
4807 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
4808 gnus-tmp-header gnus-tmp-level)
4809 gnus-newsgroup-data)
4810
4811 ;; Actually insert the line.
4812 (setq
4813 gnus-tmp-subject-or-nil
4814 (cond
4815 ((and gnus-thread-ignore-subject
4816 gnus-tmp-prev-subject
23f87bed 4817 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4818 subject)
4819 ((zerop gnus-tmp-level)
4820 (if (and (eq gnus-summary-make-false-root 'empty)
4821 (memq number gnus-tmp-gathered)
4822 gnus-tmp-prev-subject
23f87bed 4823 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
4824 gnus-summary-same-subject
4825 subject))
4826 (t gnus-summary-same-subject)))
4827 (if (and (eq gnus-summary-make-false-root 'adopt)
4828 (= gnus-tmp-level 1)
4829 (memq number gnus-tmp-gathered))
4830 (setq gnus-tmp-opening-bracket ?\<
4831 gnus-tmp-closing-bracket ?\>)
4832 (setq gnus-tmp-opening-bracket ?\[
4833 gnus-tmp-closing-bracket ?\]))
4834 (setq
4835 gnus-tmp-indentation
4836 (aref gnus-thread-indent-array gnus-tmp-level)
4837 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
4838 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
4839 gnus-summary-default-score 0)
4840 gnus-tmp-score-char
4841 (if (or (null gnus-summary-default-score)
4842 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
4843 gnus-summary-zcore-fuzz))
23f87bed 4844 ? ;Whitespace
eec82323
LMI
4845 (if (< gnus-tmp-score gnus-summary-default-score)
4846 gnus-score-below-mark gnus-score-over-mark))
4847 gnus-tmp-replied
4848 (cond ((memq number gnus-newsgroup-processable)
4849 gnus-process-mark)
4850 ((memq number gnus-newsgroup-cached)
4851 gnus-cached-mark)
4852 ((memq number gnus-newsgroup-replied)
4853 gnus-replied-mark)
23f87bed
MB
4854 ((memq number gnus-newsgroup-forwarded)
4855 gnus-forwarded-mark)
eec82323
LMI
4856 ((memq number gnus-newsgroup-saved)
4857 gnus-saved-mark)
23f87bed
MB
4858 ((memq number gnus-newsgroup-recent)
4859 gnus-recent-mark)
4860 ((memq number gnus-newsgroup-unseen)
4861 gnus-unseen-mark)
4862 (t gnus-no-mark))
4863 gnus-tmp-downloaded
4864 (cond ((memq number gnus-newsgroup-undownloaded)
4865 gnus-undownloaded-mark)
4866 (gnus-newsgroup-agentized
4867 gnus-downloaded-mark)
4868 (t
4869 gnus-no-mark))
eec82323
LMI
4870 gnus-tmp-from (mail-header-from gnus-tmp-header)
4871 gnus-tmp-name
4872 (cond
4873 ((string-match "<[^>]+> *$" gnus-tmp-from)
4874 (setq beg-match (match-beginning 0))
23f87bed
MB
4875 (or (and (string-match "^\".+\"" gnus-tmp-from)
4876 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
4877 (substring gnus-tmp-from 0 beg-match)))
4878 ((string-match "(.+)" gnus-tmp-from)
4879 (substring gnus-tmp-from
4880 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
4881 (t gnus-tmp-from))
4882
4883 ;; Do the %B string
4884 gnus-tmp-thread-tree-header-string
4885 (cond
4886 ((not gnus-show-threads) "")
4887 ((zerop gnus-tmp-level)
4888 (cond ((cdar thread)
4889 (or gnus-sum-thread-tree-root subject))
4890 (gnus-tmp-new-adopts
4891 (or gnus-sum-thread-tree-false-root subject))
4892 (t
4893 (or gnus-sum-thread-tree-single-indent subject))))
4894 (t
4895 (concat (apply 'concat
4896 (mapcar (lambda (item)
4897 (if (= item 1)
4898 gnus-sum-thread-tree-vertical
4899 gnus-sum-thread-tree-indent))
4900 (cdr (reverse tree-stack))))
4901 (if (nth 1 thread)
4902 gnus-sum-thread-tree-leaf-with-other
4903 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
4904 (when (string= gnus-tmp-name "")
4905 (setq gnus-tmp-name gnus-tmp-from))
4906 (unless (numberp gnus-tmp-lines)
23f87bed
MB
4907 (setq gnus-tmp-lines -1))
4908 (if (= gnus-tmp-lines -1)
4909 (setq gnus-tmp-lines "?")
4910 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
4911 (gnus-put-text-property
eec82323
LMI
4912 (point)
4913 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 4914 'gnus-number number)
eec82323
LMI
4915 (when gnus-visual-p
4916 (forward-line -1)
6748645f 4917 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
4918 (forward-line 1))
4919
23f87bed 4920 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4921
4922 (when (nth 1 thread)
23f87bed
MB
4923 (push (list (max 0 gnus-tmp-level)
4924 (copy-sequence tree-stack)
4925 (nthcdr 1 thread))
4926 stack))
4927 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
4928 (incf gnus-tmp-level)
4929 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
4930 (if gnus-summary-display-while-building
4931 (if building-count
4932 (progn
4933 ;; use a set frequency
4934 (setq building-line-count (1- building-line-count))
4935 (when (= building-line-count 0)
4936 (sit-for 0)
4937 (setq building-line-count
4938 gnus-summary-display-while-building)))
4939 ;; always
4940 (sit-for 0)))
eec82323
LMI
4941 (unless threads
4942 (setq gnus-tmp-level 0)))))
4943 (gnus-message 7 "Generating summary...done"))
4944
4945(defun gnus-summary-prepare-unthreaded (headers)
4946 "Generate an unthreaded summary buffer based on HEADERS."
4947 (let (header number mark)
4948
4949 (beginning-of-line)
4950
4951 (while headers
4952 ;; We may have to root out some bad articles...
4953 (when (memq (setq number (mail-header-number
4954 (setq header (pop headers))))
4955 gnus-newsgroup-limit)
4956 ;; Mark article as read when it has a low score.
4957 (when (and gnus-summary-mark-below
4958 (< (or (cdr (assq number gnus-newsgroup-scored))
4959 gnus-summary-default-score 0)
4960 gnus-summary-mark-below)
4961 (not (gnus-summary-article-ancient-p number)))
4962 (setq gnus-newsgroup-unreads
4963 (delq number gnus-newsgroup-unreads))
4964 (if gnus-newsgroup-auto-expire
4965 (push number gnus-newsgroup-expirable)
4966 (push (cons number gnus-low-score-mark)
4967 gnus-newsgroup-reads)))
4968
4969 (setq mark (gnus-article-mark number))
4970 (push (gnus-data-make number mark (1+ (point)) header 0)
4971 gnus-newsgroup-data)
4972 (gnus-summary-insert-line
4973 header 0 number
23f87bed 4974 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
4975 mark (memq number gnus-newsgroup-replied)
4976 (memq number gnus-newsgroup-expirable)
4977 (mail-header-subject header) nil
4978 (cdr (assq number gnus-newsgroup-scored))
4979 (memq number gnus-newsgroup-processable))))))
4980
16409b0b
GM
4981(defun gnus-summary-remove-list-identifiers ()
4982 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
4983 (let ((regexp (if (consp gnus-list-identifiers)
4984 (mapconcat 'identity gnus-list-identifiers " *\\|")
4985 gnus-list-identifiers))
4986 changed subject)
4987 (when regexp
4988 (dolist (header gnus-newsgroup-headers)
4989 (setq subject (mail-header-subject header)
4990 changed nil)
4991 (while (string-match
4992 (concat "^\\(R[Ee]: +\\)*\\(" regexp " *\\)")
4993 subject)
4994 (setq subject
4995 (concat (substring subject 0 (match-beginning 2))
4996 (substring subject (match-end 0)))
4997 changed t))
4998 (when (and changed
4999 (string-match
5000 "^\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" subject))
5001 (setq subject
5002 (concat (substring subject 0 (match-beginning 1))
5003 (substring subject (match-end 1)))))
5004 (when changed
5005 (mail-header-set-subject header subject))))))
5006
5007(defun gnus-fetch-headers (articles)
5008 "Fetch headers of ARTICLES."
5009 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5010 (gnus-message 5 "Fetching headers for %s..." name)
5011 (prog1
5012 (if (eq 'nov
5013 (setq gnus-headers-retrieved-by
5014 (gnus-retrieve-headers
5015 articles gnus-newsgroup-name
5016 ;; We might want to fetch old headers, but
5017 ;; not if there is only 1 article.
5018 (and (or (and
5019 (not (eq gnus-fetch-old-headers 'some))
5020 (not (numberp gnus-fetch-old-headers)))
5021 (> (length articles) 1))
5022 gnus-fetch-old-headers))))
5023 (gnus-get-newsgroup-headers-xover
5024 articles nil nil gnus-newsgroup-name t)
5025 (gnus-get-newsgroup-headers))
5026 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5027
6748645f 5028(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5029 "Select newsgroup GROUP.
6748645f
LMI
5030If READ-ALL is non-nil, all articles in the group are selected.
5031If SELECT-ARTICLES, only select those articles from GROUP."
eec82323
LMI
5032 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
5033 ;;!!! Dirty hack; should be removed.
5034 (gnus-summary-ignore-duplicates
23f87bed 5035 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5036 t
5037 gnus-summary-ignore-duplicates))
5038 (info (nth 2 entry))
5039 articles fetched-articles cached)
5040
5041 (unless (gnus-check-server
475e0e0c
GM
5042 (set (make-local-variable 'gnus-current-select-method)
5043 (gnus-find-method-for-group group)))
eec82323
LMI
5044 (error "Couldn't open server"))
5045
5046 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5047 (gnus-activate-group group) ; Or we can activate it...
5048 (progn ; Or we bug out.
5049 (when (equal major-mode 'gnus-summary-mode)
23f87bed
MB
5050 (gnus-kill-buffer (current-buffer)))
5051 (error "Couldn't activate group %s: %s"
eec82323
LMI
5052 group (gnus-status-message group))))
5053
5054 (unless (gnus-request-group group t)
5055 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5056 (gnus-kill-buffer (current-buffer)))
eec82323
LMI
5057 (error "Couldn't request group %s: %s"
5058 group (gnus-status-message group)))
5059
23f87bed
MB
5060 (when gnus-agent
5061 ;; The agent may be storing articles that are no longer in the
5062 ;; server's active range. If that is the case, the active range
5063 ;; needs to be expanded such that the agent's articles can be
5064 ;; included in the summary.
5065 (let* ((gnus-command-method (gnus-find-method-for-group group))
5066 (alist (gnus-agent-load-alist group))
5067 (active (gnus-active group)))
5068 (if (and (car alist)
5069 (< (caar alist) (car active)))
5070 (gnus-set-active group (cons (caar alist) (cdr active)))))
5071
5072 (setq gnus-summary-use-undownloaded-faces
5073 (gnus-agent-find-parameter
5074 group
5075 'agent-enable-undownloaded-faces)))
5076
5077 (setq gnus-newsgroup-name group
5078 gnus-newsgroup-unselected nil
5079 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5080
5081 (let ((display (gnus-group-find-parameter group 'display)))
5082 (setq gnus-newsgroup-display
5083 (cond
5084 ((not (zerop (or (car-safe read-all) 0)))
5085 ;; The user entered the group with C-u SPC/RET, let's show
5086 ;; all articles.
5087 'gnus-not-ignore)
5088 ((eq display 'all)
5089 'gnus-not-ignore)
5090 ((arrayp display)
5091 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5092 ((numberp display)
5093 ;; The following is probably the "correct" solution, but
5094 ;; it makes Gnus fetch all headers and then limit the
5095 ;; articles (which is slow), so instead we hack the
5096 ;; select-articles parameter instead. -- Simon Josefsson
5097 ;; <jas@kth.se>
5098 ;;
5099 ;; (gnus-byte-compile
5100 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5101 ;; display)))))
5102 (setq select-articles
5103 (gnus-uncompress-range
5104 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5105 (if (> tmp 0)
5106 tmp
5107 1))
5108 (cdr (gnus-active group)))))
5109 nil)
5110 (t
5111 nil))))
eec82323 5112
23f87bed 5113 (gnus-summary-setup-default-charset)
eec82323
LMI
5114
5115 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5116 (when (gnus-virtual-group-p group)
5117 (setq cached gnus-newsgroup-cached))
5118
5119 (setq gnus-newsgroup-unreads
23f87bed
MB
5120 (gnus-sorted-ndifference
5121 (gnus-sorted-ndifference gnus-newsgroup-unreads
5122 gnus-newsgroup-marked)
eec82323
LMI
5123 gnus-newsgroup-dormant))
5124
5125 (setq gnus-newsgroup-processable nil)
5126
5127 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5128
23f87bed
MB
5129 ;; Adjust and set lists of article marks.
5130 (when info
5131 (gnus-adjust-marked-articles info))
6748645f
LMI
5132 (if (setq articles select-articles)
5133 (setq gnus-newsgroup-unselected
23f87bed 5134 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5135 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5136
5137 (cond
5138 ((null articles)
5139 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5140 'quit)
5141 ((eq articles 0) nil)
5142 (t
5143 ;; Init the dependencies hash table.
5144 (setq gnus-newsgroup-dependencies
5145 (gnus-make-hashtable (length articles)))
16409b0b 5146 (gnus-set-global-variables)
eec82323 5147 ;; Retrieve the headers and read them in.
23f87bed
MB
5148
5149 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5150
5151 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5152 (when cached
5153 (setq gnus-newsgroup-cached cached))
5154
5155 ;; Suppress duplicates?
5156 (when gnus-suppress-duplicates
5157 (gnus-dup-suppress-articles))
5158
5159 ;; Set the initial limit.
5160 (setq gnus-newsgroup-limit (copy-sequence articles))
5161 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5162 (setq fetched-articles
5163 (mapcar (lambda (headers) (mail-header-number headers))
5164 gnus-newsgroup-headers))
5165 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5166 (setq gnus-newsgroup-unreads
23f87bed
MB
5167 (gnus-sorted-nintersection
5168 gnus-newsgroup-unreads fetched-articles))
5169 (gnus-compute-unseen-list)
5170
eec82323
LMI
5171 ;; Removed marked articles that do not exist.
5172 (gnus-update-missing-marks
23f87bed 5173 (gnus-sorted-difference articles fetched-articles))
eec82323 5174 ;; We might want to build some more threads first.
6748645f
LMI
5175 (when (and gnus-fetch-old-headers
5176 (eq gnus-headers-retrieved-by 'nov))
5177 (if (eq gnus-fetch-old-headers 'invisible)
5178 (gnus-build-all-threads)
5179 (gnus-build-old-threads)))
5180 ;; Let the Gnus agent mark articles as read.
5181 (when gnus-agent
5182 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5183 ;; Remove list identifiers from subject
5184 (when gnus-list-identifiers
5185 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5186 ;; Check whether auto-expire is to be done in this group.
5187 (setq gnus-newsgroup-auto-expire
5188 (gnus-group-auto-expirable-p group))
5189 ;; Set up the article buffer now, if necessary.
5190 (unless gnus-single-article-buffer
5191 (gnus-article-setup-buffer))
5192 ;; First and last article in this newsgroup.
5193 (when gnus-newsgroup-headers
5194 (setq gnus-newsgroup-begin
5195 (mail-header-number (car gnus-newsgroup-headers))
5196 gnus-newsgroup-end
5197 (mail-header-number
5198 (gnus-last-element gnus-newsgroup-headers))))
5199 ;; GROUP is successfully selected.
5200 (or gnus-newsgroup-headers t)))))
5201
23f87bed
MB
5202(defun gnus-compute-unseen-list ()
5203 ;; The `seen' marks are treated specially.
5204 (if (not gnus-newsgroup-seen)
5205 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5206 (setq gnus-newsgroup-unseen
5207 (gnus-inverse-list-range-intersection
5208 gnus-newsgroup-articles gnus-newsgroup-seen))))
5209
5210(defun gnus-summary-display-make-predicate (display)
5211 (require 'gnus-agent)
5212 (when (= (length display) 1)
5213 (setq display (car display)))
5214 (unless gnus-summary-display-cache
5215 (dolist (elem (append '((unread . unread)
5216 (read . read)
5217 (unseen . unseen))
5218 gnus-article-mark-lists))
5219 (push (cons (cdr elem)
5220 (gnus-byte-compile
5221 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5222 gnus-summary-display-cache)))
5223 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5224 (gnus-category-predicate-cache gnus-summary-display-cache))
5225 (gnus-get-predicate display)))
5226
5227;; Uses the dynamically bound `number' variable.
5228(eval-when-compile
5229 (defvar number))
5230(defun gnus-article-marked-p (type &optional article)
5231 (let ((article (or article number)))
5232 (cond
5233 ((eq type 'tick)
5234 (memq article gnus-newsgroup-marked))
5235 ((eq type 'spam)
5236 (memq article gnus-newsgroup-spam-marked))
5237 ((eq type 'unsend)
5238 (memq article gnus-newsgroup-unsendable))
5239 ((eq type 'undownload)
5240 (memq article gnus-newsgroup-undownloaded))
5241 ((eq type 'download)
5242 (memq article gnus-newsgroup-downloadable))
5243 ((eq type 'unread)
5244 (memq article gnus-newsgroup-unreads))
5245 ((eq type 'read)
5246 (memq article gnus-newsgroup-reads))
5247 ((eq type 'dormant)
5248 (memq article gnus-newsgroup-dormant) )
5249 ((eq type 'expire)
5250 (memq article gnus-newsgroup-expirable))
5251 ((eq type 'reply)
5252 (memq article gnus-newsgroup-replied))
5253 ((eq type 'killed)
5254 (memq article gnus-newsgroup-killed))
5255 ((eq type 'bookmark)
5256 (assq article gnus-newsgroup-bookmarks))
5257 ((eq type 'score)
5258 (assq article gnus-newsgroup-scored))
5259 ((eq type 'save)
5260 (memq article gnus-newsgroup-saved))
5261 ((eq type 'cache)
5262 (memq article gnus-newsgroup-cached))
5263 ((eq type 'forward)
5264 (memq article gnus-newsgroup-forwarded))
5265 ((eq type 'seen)
5266 (not (memq article gnus-newsgroup-unseen)))
5267 ((eq type 'recent)
5268 (memq article gnus-newsgroup-recent))
5269 (t t))))
5270
eec82323 5271(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5272 "Find out what articles the user wants to read."
23f87bed
MB
5273 (let* ((display (gnus-group-find-parameter group 'display))
5274 (articles
eec82323
LMI
5275 ;; Select all articles if `read-all' is non-nil, or if there
5276 ;; are no unread articles.
5277 (if (or read-all
5278 (and (zerop (length gnus-newsgroup-marked))
5279 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5280 ;; Fetch all if the predicate is non-nil.
5281 gnus-newsgroup-display)
5282 ;; We want to select the headers for all the articles in
5283 ;; the group, so we select either all the active
5284 ;; articles in the group, or (if that's nil), the
5285 ;; articles in the cache.
16409b0b
GM
5286 (or
5287 (gnus-uncompress-range (gnus-active group))
5288 (gnus-cache-articles-in-group group))
23f87bed
MB
5289 ;; Select only the "normal" subset of articles.
5290 (gnus-sorted-nunion
5291 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5292 gnus-newsgroup-unreads)))
eec82323
LMI
5293 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5294 (scored (length scored-list))
5295 (number (length articles))
5296 (marked (+ (length gnus-newsgroup-marked)
5297 (length gnus-newsgroup-dormant)))
5298 (select
5299 (cond
5300 ((numberp read-all)
5301 read-all)
23f87bed
MB
5302 ((numberp gnus-newsgroup-display)
5303 gnus-newsgroup-display)
eec82323
LMI
5304 (t
5305 (condition-case ()
5306 (cond
5307 ((and (or (<= scored marked) (= scored number))
5308 (numberp gnus-large-newsgroup)
5309 (> number gnus-large-newsgroup))
23f87bed
MB
5310 (let* ((cursor-in-echo-area nil)
5311 (initial (gnus-parameter-large-newsgroup-initial
5312 gnus-newsgroup-name))
5313 (input
5314 (read-string
5315 (format
5316 "How many articles from %s (%s %d): "
5317 (gnus-limit-string
5318 (gnus-group-decoded-name gnus-newsgroup-name)
5319 35)
5320 (if initial "max" "default")
5321 number)
5322 (if initial
5323 (cons (number-to-string initial)
5324 0)))))
eec82323
LMI
5325 (if (string-match "^[ \t]*$" input) number input)))
5326 ((and (> scored marked) (< scored number)
5327 (> (- scored number) 20))
5328 (let ((input
5329 (read-string
5330 (format "%s %s (%d scored, %d total): "
5331 "How many articles from"
23f87bed
MB
5332 (gnus-group-decoded-name group)
5333 scored number))))
eec82323
LMI
5334 (if (string-match "^[ \t]*$" input)
5335 number input)))
5336 (t number))
d4dfaa19
DL
5337 (quit
5338 (message "Quit getting the articles to read")
5339 nil))))))
eec82323
LMI
5340 (setq select (if (stringp select) (string-to-number select) select))
5341 (if (or (null select) (zerop select))
5342 select
5343 (if (and (not (zerop scored)) (<= (abs select) scored))
5344 (progn
5345 (setq articles (sort scored-list '<))
5346 (setq number (length articles)))
5347 (setq articles (copy-sequence articles)))
5348
5349 (when (< (abs select) number)
5350 (if (< select 0)
5351 ;; Select the N oldest articles.
5352 (setcdr (nthcdr (1- (abs select)) articles) nil)
5353 ;; Select the N most recent articles.
5354 (setq articles (nthcdr (- number select) articles))))
5355 (setq gnus-newsgroup-unselected
23f87bed 5356 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5357 (when gnus-alter-articles-to-read-function
23f87bed 5358 (setq articles
a1506d29 5359 (sort
16409b0b 5360 (funcall gnus-alter-articles-to-read-function
23f87bed 5361 gnus-newsgroup-name articles)
16409b0b 5362 '<)))
eec82323
LMI
5363 articles)))
5364
5365(defun gnus-killed-articles (killed articles)
5366 (let (out)
5367 (while articles
5368 (when (inline (gnus-member-of-range (car articles) killed))
5369 (push (car articles) out))
5370 (setq articles (cdr articles)))
5371 out))
5372
5373(defun gnus-uncompress-marks (marks)
5374 "Uncompress the mark ranges in MARKS."
5375 (let ((uncompressed '(score bookmark))
5376 out)
5377 (while marks
5378 (if (memq (caar marks) uncompressed)
5379 (push (car marks) out)
5380 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5381 (setq marks (cdr marks)))
5382 out))
5383
23f87bed
MB
5384(defun gnus-article-mark-to-type (mark)
5385 "Return the type of MARK."
5386 (or (cadr (assq mark gnus-article-special-mark-lists))
5387 'list))
5388
5389(defun gnus-article-unpropagatable-p (mark)
5390 "Return whether MARK should be propagated to back end."
5391 (memq mark gnus-article-unpropagated-mark-lists))
5392
eec82323 5393(defun gnus-adjust-marked-articles (info)
16409b0b 5394 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5395 (let* ((marked-lists (gnus-info-marks info))
5396 (active (gnus-active (gnus-info-group info)))
5397 (min (car active))
5398 (max (cdr active))
5399 (types gnus-article-mark-lists)
23f87bed 5400 marks var articles article mark mark-type)
eec82323 5401
23f87bed
MB
5402 (dolist (marks marked-lists)
5403 (setq mark (car marks)
5404 mark-type (gnus-article-mark-to-type mark)
5405 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5406
23f87bed
MB
5407 ;; We set the variable according to the type of the marks list,
5408 ;; and then adjust the marks to a subset of the active articles.
eec82323
LMI
5409 (cond
5410 ;; Adjust "simple" lists.
23f87bed
MB
5411 ((eq mark-type 'list)
5412 (set var (setq articles (gnus-uncompress-range (cdr marks))))
5413 (when (memq mark '(tick dormant expire reply save))
5414 (while articles
5415 (when (or (< (setq article (pop articles)) min) (> article max))
5416 (set var (delq article (symbol-value var)))))))
eec82323 5417 ;; Adjust assocs.
23f87bed
MB
5418 ((eq mark-type 'tuple)
5419 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5420 (when (not (listp (cdr (symbol-value var))))
5421 (set var (list (symbol-value var))))
5422 (when (not (listp (cdr articles)))
5423 (setq articles (list articles)))
eec82323
LMI
5424 (while articles
5425 (when (or (not (consp (setq article (pop articles))))
5426 (< (car article) min)
5427 (> (car article) max))
23f87bed
MB
5428 (set var (delq article (symbol-value var))))))
5429 ;; Adjust ranges (sloppily).
5430 ((eq mark-type 'range)
5431 (cond
5432 ((eq mark 'seen)
5433 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5434 ;; It should be (seen (NUM1 . NUM2)).
5435 (when (numberp (cddr marks))
5436 (setcdr marks (list (cdr marks))))
5437 (setq articles (cdr marks))
5438 (while (and articles
5439 (or (and (consp (car articles))
5440 (> min (cdar articles)))
5441 (and (numberp (car articles))
5442 (> min (car articles)))))
5443 (pop articles))
5444 (set var articles))))))))
eec82323
LMI
5445
5446(defun gnus-update-missing-marks (missing)
6748645f 5447 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5448 (when missing
23f87bed 5449 (let (var m)
eec82323 5450 ;; Go through all types.
23f87bed
MB
5451 (dolist (elem gnus-article-mark-lists)
5452 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5453 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5454 (when (symbol-value var)
5455 ;; This list has articles. So we delete all missing
5456 ;; articles from it.
5457 (setq m missing)
5458 (while m
5459 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5460
5461(defun gnus-update-marks ()
5462 "Enter the various lists of marked articles into the newsgroup info list."
5463 (let ((types gnus-article-mark-lists)
5464 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5465 type list newmarked symbol delta-marks)
eec82323 5466 (when info
16409b0b 5467 ;; Add all marks lists to the list of marks lists.
eec82323 5468 (while (setq type (pop types))
16409b0b
GM
5469 (setq list (symbol-value
5470 (setq symbol
23f87bed 5471 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5472
16409b0b 5473 (when list
eec82323
LMI
5474 ;; Get rid of the entries of the articles that have the
5475 ;; default score.
5476 (when (and (eq (cdr type) 'score)
5477 gnus-save-score
5478 list)
5479 (let* ((arts list)
5480 (prev (cons nil list))
5481 (all prev))
5482 (while arts
5483 (if (or (not (consp (car arts)))
5484 (= (cdar arts) gnus-summary-default-score))
5485 (setcdr prev (cdr arts))
5486 (setq prev arts))
5487 (setq arts (cdr arts)))
16409b0b
GM
5488 (setq list (cdr all)))))
5489
23f87bed
MB
5490 (when (eq (cdr type) 'seen)
5491 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5492
5493 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5494 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5495
23f87bed
MB
5496 (when (and (gnus-check-backend-function
5497 'request-set-mark gnus-newsgroup-name)
5498 (not (gnus-article-unpropagatable-p (cdr type))))
5499 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5500 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5501 (add (gnus-remove-from-range
5502 (gnus-copy-sequence list) old)))
5503 (when add
5504 (push (list add 'add (list (cdr type))) delta-marks))
5505 (when del
5506 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5507
16409b0b
GM
5508 (when list
5509 (push (cons (cdr type) list) newmarked)))
5510
5511 (when delta-marks
5512 (unless (gnus-check-group gnus-newsgroup-name)
5513 (error "Can't open server for %s" gnus-newsgroup-name))
5514 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5515
eec82323
LMI
5516 ;; Enter these new marks into the info of the group.
5517 (if (nthcdr 3 info)
5518 (setcar (nthcdr 3 info) newmarked)
5519 ;; Add the marks lists to the end of the info.
5520 (when newmarked
5521 (setcdr (nthcdr 2 info) (list newmarked))))
5522
5523 ;; Cut off the end of the info if there's nothing else there.
5524 (let ((i 5))
5525 (while (and (> i 2)
5526 (not (nth i info)))
5527 (when (nthcdr (decf i) info)
5528 (setcdr (nthcdr i info) nil)))))))
5529
5530(defun gnus-set-mode-line (where)
16409b0b 5531 "Set the mode line of the article or summary buffers.
eec82323
LMI
5532If WHERE is `summary', the summary mode line format will be used."
5533 ;; Is this mode line one we keep updated?
16409b0b
GM
5534 (when (and (memq where gnus-updated-mode-lines)
5535 (symbol-value
5536 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323
LMI
5537 (let (mode-string)
5538 (save-excursion
5539 ;; We evaluate this in the summary buffer since these
5540 ;; variables are buffer-local to that buffer.
5541 (set-buffer gnus-summary-buffer)
23f87bed 5542 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
5543 ;; below.
5544 (let* ((mformat (symbol-value
5545 (intern
5546 (format "gnus-%s-mode-line-format-spec" where))))
23f87bed
MB
5547 (gnus-tmp-group-name (gnus-group-decoded-name
5548 gnus-newsgroup-name))
eec82323
LMI
5549 (gnus-tmp-article-number (or gnus-current-article 0))
5550 (gnus-tmp-unread gnus-newsgroup-unreads)
5551 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
5552 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
5553 (gnus-tmp-unread-and-unselected
5554 (cond ((and (zerop gnus-tmp-unread-and-unticked)
5555 (zerop gnus-tmp-unselected))
5556 "")
5557 ((zerop gnus-tmp-unselected)
5558 (format "{%d more}" gnus-tmp-unread-and-unticked))
5559 (t (format "{%d(+%d) more}"
5560 gnus-tmp-unread-and-unticked
5561 gnus-tmp-unselected))))
5562 (gnus-tmp-subject
5563 (if (and gnus-current-headers
5564 (vectorp gnus-current-headers))
5565 (gnus-mode-string-quote
5566 (mail-header-subject gnus-current-headers))
5567 ""))
5568 bufname-length max-len
23f87bed 5569 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
5570 (setq mode-string (eval mformat))
5571 (setq bufname-length (if (string-match "%b" mode-string)
5572 (- (length
5573 (buffer-name
5574 (if (eq where 'summary)
5575 nil
5576 (get-buffer gnus-article-buffer))))
5577 2)
5578 0))
5579 (setq max-len (max 4 (if gnus-mode-non-string-length
5580 (- (window-width)
5581 gnus-mode-non-string-length
5582 bufname-length)
5583 (length mode-string))))
5584 ;; We might have to chop a bit of the string off...
5585 (when (> (length mode-string) max-len)
5586 (setq mode-string
16409b0b 5587 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
5588 "...")))
5589 ;; Pad the mode string a bit.
5590 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
5591 ;; Update the mode line.
5592 (setq mode-line-buffer-identification
5593 (gnus-mode-line-buffer-identification (list mode-string)))
5594 (set-buffer-modified-p t))))
5595
5596(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
5597 "Go through the HEADERS list and add all Xrefs to a hash table.
5598The resulting hash table is returned, or nil if no Xrefs were found."
5599 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
5600 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
5601 (xref-hashtb (gnus-make-hashtable))
5602 start group entry number xrefs header)
5603 (while headers
5604 (setq header (pop headers))
5605 (when (and (setq xrefs (mail-header-xref header))
5606 (not (memq (setq number (mail-header-number header))
5607 unreads)))
5608 (setq start 0)
5609 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
5610 (setq start (match-end 0))
5611 (setq group (if prefix
5612 (concat prefix (substring xrefs (match-beginning 1)
5613 (match-end 1)))
5614 (substring xrefs (match-beginning 1) (match-end 1))))
5615 (setq number
5616 (string-to-int (substring xrefs (match-beginning 2)
5617 (match-end 2))))
5618 (if (setq entry (gnus-gethash group xref-hashtb))
5619 (setcdr entry (cons number (cdr entry)))
5620 (gnus-sethash group (cons number nil) xref-hashtb)))))
5621 (and start xref-hashtb)))
5622
5623(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
5624 "Look through all the headers and mark the Xrefs as read."
5625 (let ((virtual (gnus-virtual-group-p from-newsgroup))
5626 name entry info xref-hashtb idlist method nth4)
5627 (save-excursion
5628 (set-buffer gnus-group-buffer)
5629 (when (setq xref-hashtb
5630 (gnus-create-xref-hashtb from-newsgroup headers unreads))
5631 (mapatoms
5632 (lambda (group)
5633 (unless (string= from-newsgroup (setq name (symbol-name group)))
5634 (setq idlist (symbol-value group))
5635 ;; Dead groups are not updated.
5636 (and (prog1
5637 (setq entry (gnus-gethash name gnus-newsrc-hashtb)
5638 info (nth 2 entry))
5639 (when (stringp (setq nth4 (gnus-info-method info)))
5640 (setq nth4 (gnus-server-to-method nth4))))
5641 ;; Only do the xrefs if the group has the same
5642 ;; select method as the group we have just read.
5643 (or (gnus-methods-equal-p
5644 nth4 (gnus-find-method-for-group from-newsgroup))
5645 virtual
5646 (equal nth4 (setq method (gnus-find-method-for-group
5647 from-newsgroup)))
5648 (and (equal (car nth4) (car method))
5649 (equal (nth 1 nth4) (nth 1 method))))
5650 gnus-use-cross-reference
5651 (or (not (eq gnus-use-cross-reference t))
5652 virtual
5653 ;; Only do cross-references on subscribed
5654 ;; groups, if that is what is wanted.
5655 (<= (gnus-info-level info) gnus-level-subscribed))
5656 (gnus-group-make-articles-read name idlist))))
5657 xref-hashtb)))))
5658
6748645f
LMI
5659(defun gnus-compute-read-articles (group articles)
5660 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
5661 (info (nth 2 entry))
5662 (active (gnus-active group))
5663 ninfo)
5664 (when entry
16409b0b 5665 ;; First peel off all invalid article numbers.
6748645f
LMI
5666 (when active
5667 (let ((ids articles)
5668 id first)
5669 (while (setq id (pop ids))
5670 (when (and first (> id (cdr active)))
5671 ;; We'll end up in this situation in one particular
5672 ;; obscure situation. If you re-scan a group and get
5673 ;; a new article that is cross-posted to a different
5674 ;; group that has not been re-scanned, you might get
5675 ;; crossposted article that has a higher number than
5676 ;; Gnus believes possible. So we re-activate this
5677 ;; group as well. This might mean doing the
5678 ;; crossposting thingy will *increase* the number
5679 ;; of articles in some groups. Tsk, tsk.
5680 (setq active (or (gnus-activate-group group) active)))
5681 (when (or (> id (cdr active))
5682 (< id (car active)))
5683 (setq articles (delq id articles))))))
5684 ;; If the read list is nil, we init it.
5685 (if (and active
5686 (null (gnus-info-read info))
5687 (> (car active) 1))
5688 (setq ninfo (cons 1 (1- (car active))))
5689 (setq ninfo (gnus-info-read info)))
5690 ;; Then we add the read articles to the range.
5691 (gnus-add-to-range
5692 ninfo (setq articles (sort articles '<))))))
5693
eec82323
LMI
5694(defun gnus-group-make-articles-read (group articles)
5695 "Update the info of GROUP to say that ARTICLES are read."
5696 (let* ((num 0)
5697 (entry (gnus-gethash group gnus-newsrc-hashtb))
5698 (info (nth 2 entry))
5699 (active (gnus-active group))
5700 range)
6748645f
LMI
5701 (when entry
5702 (setq range (gnus-compute-read-articles group articles))
5703 (save-excursion
5704 (set-buffer gnus-group-buffer)
5705 (gnus-undo-register
5706 `(progn
5707 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
5708 (gnus-info-set-read ',info ',(gnus-info-read info))
5709 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 5710 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
5711 (gnus-group-update-group ,group t))))
5712 ;; Add the read articles to the range.
5713 (gnus-info-set-read info range)
23f87bed 5714 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
5715 ;; Then we have to re-compute how many unread
5716 ;; articles there are in this group.
5717 (when active
5718 (cond
5719 ((not range)
5720 (setq num (- (1+ (cdr active)) (car active))))
5721 ((not (listp (cdr range)))
5722 (setq num (- (cdr active) (- (1+ (cdr range))
5723 (car range)))))
5724 (t
5725 (while range
5726 (if (numberp (car range))
5727 (setq num (1+ num))
5728 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
5729 (setq range (cdr range)))
5730 (setq num (- (cdr active) num))))
5731 ;; Update the number of unread articles.
5732 (setcar entry num)
5733 ;; Update the group buffer.
23f87bed
MB
5734 (unless (gnus-ephemeral-group-p group)
5735 (gnus-group-update-group group t))))))
eec82323 5736
eec82323
LMI
5737(defvar gnus-newsgroup-none-id 0)
5738
5739(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
5740 (let ((cur nntp-server-buffer)
5741 (dependencies
5742 (or dependencies
5743 (save-excursion (set-buffer gnus-summary-buffer)
5744 gnus-newsgroup-dependencies)))
16409b0b
GM
5745 headers id end ref
5746 (mail-parse-charset gnus-newsgroup-charset)
5747 (mail-parse-ignored-charsets
5748 (save-excursion (condition-case nil
5749 (set-buffer gnus-summary-buffer)
5750 (error))
5751 gnus-newsgroup-ignored-charsets)))
eec82323
LMI
5752 (save-excursion
5753 (set-buffer nntp-server-buffer)
5754 ;; Translate all TAB characters into SPACE characters.
5755 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 5756 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 5757 (ietf-drums-unfold-fws)
6748645f 5758 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 5759 (let ((case-fold-search t)
6748645f 5760 in-reply-to header p lines chars)
eec82323
LMI
5761 (goto-char (point-min))
5762 ;; Search to the beginning of the next header. Error messages
5763 ;; do not begin with 2 or 3.
5764 (while (re-search-forward "^[23][0-9]+ " nil t)
5765 (setq id nil
5766 ref nil)
5767 ;; This implementation of this function, with nine
5768 ;; search-forwards instead of the one re-search-forward and
5769 ;; a case (which basically was the old function) is actually
5770 ;; about twice as fast, even though it looks messier. You
5771 ;; can't have everything, I guess. Speed and elegance
5772 ;; doesn't always go hand in hand.
5773 (setq
5774 header
5775 (vector
5776 ;; Number.
5777 (prog1
5778 (read cur)
5779 (end-of-line)
5780 (setq p (point))
5781 (narrow-to-region (point)
5782 (or (and (search-forward "\n.\n" nil t)
5783 (- (point) 2))
5784 (point))))
5785 ;; Subject.
5786 (progn
5787 (goto-char p)
23f87bed 5788 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
5789 (funcall gnus-decode-encoded-word-function
5790 (nnheader-header-value))
2bd3dcae 5791 "(none)"))
eec82323
LMI
5792 ;; From.
5793 (progn
5794 (goto-char p)
23f87bed 5795 (if (search-forward "\nfrom:" nil t)
16409b0b
GM
5796 (funcall gnus-decode-encoded-word-function
5797 (nnheader-header-value))
2bd3dcae 5798 "(nobody)"))
eec82323
LMI
5799 ;; Date.
5800 (progn
5801 (goto-char p)
23f87bed 5802 (if (search-forward "\ndate:" nil t)
eec82323
LMI
5803 (nnheader-header-value) ""))
5804 ;; Message-ID.
5805 (progn
5806 (goto-char p)
6748645f
LMI
5807 (setq id (if (re-search-forward
5808 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
5809 ;; We do it this way to make sure the Message-ID
5810 ;; is (somewhat) syntactically valid.
5811 (buffer-substring (match-beginning 1)
5812 (match-end 1))
eec82323
LMI
5813 ;; If there was no message-id, we just fake one
5814 ;; to make subsequent routines simpler.
5815 (nnheader-generate-fake-message-id))))
5816 ;; References.
5817 (progn
5818 (goto-char p)
23f87bed 5819 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
5820 (progn
5821 (setq end (point))
5822 (prog1
5823 (nnheader-header-value)
5824 (setq ref
5825 (buffer-substring
5826 (progn
5827 (end-of-line)
5828 (search-backward ">" end t)
5829 (1+ (point)))
5830 (progn
5831 (search-backward "<" end t)
5832 (point))))))
5833 ;; Get the references from the in-reply-to header if there
5834 ;; were no references and the in-reply-to header looks
5835 ;; promising.
23f87bed 5836 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
5837 (setq in-reply-to (nnheader-header-value))
5838 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
5839 (let (ref2)
5840 (setq ref (substring in-reply-to (match-beginning 0)
5841 (match-end 0)))
5842 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
5843 (setq ref2 (substring in-reply-to (match-beginning 0)
5844 (match-end 0)))
5845 (when (> (length ref2) (length ref))
5846 (setq ref ref2)))
5847 ref)
eec82323
LMI
5848 (setq ref nil))))
5849 ;; Chars.
6748645f
LMI
5850 (progn
5851 (goto-char p)
5852 (if (search-forward "\nchars: " nil t)
5853 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
5854 chars -1)
5855 -1))
eec82323
LMI
5856 ;; Lines.
5857 (progn
5858 (goto-char p)
5859 (if (search-forward "\nlines: " nil t)
a8151ef7 5860 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
5861 lines -1)
5862 -1))
eec82323
LMI
5863 ;; Xref.
5864 (progn
5865 (goto-char p)
23f87bed 5866 (and (search-forward "\nxref:" nil t)
16409b0b
GM
5867 (nnheader-header-value)))
5868 ;; Extra.
5869 (when gnus-extra-headers
5870 (let ((extra gnus-extra-headers)
5871 out)
5872 (while extra
5873 (goto-char p)
5874 (when (search-forward
23f87bed 5875 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
5876 (push (cons (car extra) (nnheader-header-value))
5877 out))
5878 (pop extra))
5879 out))))
eec82323
LMI
5880 (when (equal id ref)
5881 (setq ref nil))
6748645f
LMI
5882
5883 (when gnus-alter-header-function
5884 (funcall gnus-alter-header-function header)
5885 (setq id (mail-header-id header)
5886 ref (gnus-parent-id (mail-header-references header))))
5887
5888 (when (setq header
5889 (gnus-dependencies-add-header
5890 header dependencies force-new))
eec82323
LMI
5891 (push header headers))
5892 (goto-char (point-max))
5893 (widen))
5894 (nreverse headers)))))
5895
eec82323
LMI
5896;; Goes through the xover lines and returns a list of vectors
5897(defun gnus-get-newsgroup-headers-xover (sequence &optional
5898 force-new dependencies
5899 group also-fetch-heads)
16409b0b
GM
5900 "Parse the news overview data in the server buffer.
5901Return a list of headers that match SEQUENCE (see
5902`nntp-retrieve-headers')."
eec82323
LMI
5903 ;; Get the Xref when the users reads the articles since most/some
5904 ;; NNTP servers do not include Xrefs when using XOVER.
5905 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
5906 (let ((mail-parse-charset gnus-newsgroup-charset)
5907 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
5908 (cur nntp-server-buffer)
eec82323 5909 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
5910 (allp (cond
5911 ((eq gnus-read-all-available-headers t)
5912 t)
5913 ((stringp gnus-read-all-available-headers)
5914 (string-match gnus-read-all-available-headers group))
5915 (t
5916 nil)))
eec82323
LMI
5917 number headers header)
5918 (save-excursion
5919 (set-buffer nntp-server-buffer)
16409b0b 5920 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 5921 ;; Allow the user to mangle the headers before parsing them.
6748645f 5922 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 5923 (goto-char (point-min))
23f87bed
MB
5924 (gnus-parse-without-error
5925 (while (and (or sequence allp)
5926 (not (eobp)))
5927 (setq number (read cur))
5928 (when (not allp)
5929 (while (and sequence
5930 (< (car sequence) number))
5931 (setq sequence (cdr sequence))))
5932 (when (and (or allp
5933 (and sequence
5934 (eq number (car sequence))))
5935 (progn
5936 (setq sequence (cdr sequence))
5937 (setq header (inline
5938 (gnus-nov-parse-line
5939 number dependencies force-new)))))
5940 (push header headers))
5941 (forward-line 1)))
eec82323
LMI
5942 ;; A common bug in inn is that if you have posted an article and
5943 ;; then retrieves the active file, it will answer correctly --
5944 ;; the new article is included. However, a NOV entry for the
5945 ;; article may not have been generated yet, so this may fail.
5946 ;; We work around this problem by retrieving the last few
5947 ;; headers using HEAD.
5948 (if (or (not also-fetch-heads)
5949 (not sequence))
5950 ;; We (probably) got all the headers.
5951 (nreverse headers)
5952 (let ((gnus-nov-is-evil t))
5953 (nconc
5954 (nreverse headers)
23f87bed 5955 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
5956 (gnus-get-newsgroup-headers))))))))
5957
5958(defun gnus-article-get-xrefs ()
5959 "Fill in the Xref value in `gnus-current-headers', if necessary.
5960This is meant to be called in `gnus-article-internal-prepare-hook'."
5961 (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
5962 gnus-current-headers)))
5963 (or (not gnus-use-cross-reference)
5964 (not headers)
5965 (and (mail-header-xref headers)
5966 (not (string= (mail-header-xref headers) "")))
5967 (let ((case-fold-search t)
5968 xref)
5969 (save-restriction
5970 (nnheader-narrow-to-headers)
5971 (goto-char (point-min))
16409b0b
GM
5972 (when (or (and (not (eobp))
5973 (eq (downcase (char-after)) ?x)
eec82323
LMI
5974 (looking-at "Xref:"))
5975 (search-forward "\nXref:" nil t))
5976 (goto-char (1+ (match-end 0)))
23f87bed 5977 (setq xref (buffer-substring (point) (gnus-point-at-eol)))
eec82323
LMI
5978 (mail-header-set-xref headers xref)))))))
5979
5980(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
5981 "Find article ID and insert the summary line for that article.
5982OLD-HEADER can either be a header or a line number to insert
5983the subject line on."
5984 (let* ((line (and (numberp old-header) old-header))
5985 (old-header (and (vectorp old-header) old-header))
5986 (header (cond ((and old-header use-old-header)
16409b0b
GM
5987 old-header)
5988 ((and (numberp id)
5989 (gnus-number-to-header id))
5990 (gnus-number-to-header id))
5991 (t
5992 (gnus-read-header id))))
5993 (number (and (numberp id) id))
5994 d)
eec82323
LMI
5995 (when header
5996 ;; Rebuild the thread that this article is part of and go to the
5997 ;; article we have fetched.
5998 (when (and (not gnus-show-threads)
5999 old-header)
6748645f
LMI
6000 (when (and number
6001 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6002 (goto-char (gnus-data-pos d))
6003 (gnus-data-remove
6004 number
6005 (- (gnus-point-at-bol)
6006 (prog1
6007 (1+ (gnus-point-at-eol))
6008 (gnus-delete-line))))))
23f87bed
MB
6009 ;; Remove list identifiers from subject.
6010 (when gnus-list-identifiers
6011 (let ((gnus-newsgroup-headers (list header)))
6012 (gnus-summary-remove-list-identifiers)
6013 (setq header (car gnus-newsgroup-headers))))
eec82323
LMI
6014 (when old-header
6015 (mail-header-set-number header (mail-header-number old-header)))
6016 (setq gnus-newsgroup-sparse
6017 (delq (setq number (mail-header-number header))
6018 gnus-newsgroup-sparse))
6019 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6020 (push number gnus-newsgroup-limit)
6021 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6022 (gnus-summary-goto-subject number nil t))
6023 (when (and (numberp number)
6024 (> number 0))
6025 ;; We have to update the boundaries even if we can't fetch the
6026 ;; article if ID is a number -- so that the next `P' or `N'
6027 ;; command will fetch the previous (or next) article even
6028 ;; if the one we tried to fetch this time has been canceled.
6029 (when (> number gnus-newsgroup-end)
6030 (setq gnus-newsgroup-end number))
6031 (when (< number gnus-newsgroup-begin)
6032 (setq gnus-newsgroup-begin number))
6033 (setq gnus-newsgroup-unselected
6034 (delq number gnus-newsgroup-unselected)))
6035 ;; Report back a success?
6036 (and header (mail-header-number header))))
6037
6038;;; Process/prefix in the summary buffer
6039
6040(defun gnus-summary-work-articles (n)
6748645f
LMI
6041 "Return a list of articles to be worked upon.
6042The prefix argument, the list of process marked articles, and the
6043current article will be taken into consideration."
6044 (save-excursion
6045 (set-buffer gnus-summary-buffer)
6046 (cond
6047 (n
6048 ;; A numerical prefix has been given.
6049 (setq n (prefix-numeric-value n))
6050 (let ((backward (< n 0))
6051 (n (abs (prefix-numeric-value n)))
6052 articles article)
6053 (save-excursion
6054 (while
6055 (and (> n 0)
6056 (push (setq article (gnus-summary-article-number))
6057 articles)
6058 (if backward
6059 (gnus-summary-find-prev nil article)
6060 (gnus-summary-find-next nil article)))
6061 (decf n)))
6062 (nreverse articles)))
6063 ((and (gnus-region-active-p) (mark))
6064 (message "region active")
6065 ;; Work on the region between point and mark.
6066 (let ((max (max (point) (mark)))
6067 articles article)
6068 (save-excursion
6069 (goto-char (min (min (point) (mark))))
6070 (while
6071 (and
6072 (push (setq article (gnus-summary-article-number)) articles)
6073 (gnus-summary-find-next nil article)
6074 (< (point) max)))
6075 (nreverse articles))))
6076 (gnus-newsgroup-processable
6077 ;; There are process-marked articles present.
6078 ;; Save current state.
6079 (gnus-summary-save-process-mark)
6080 ;; Return the list.
6081 (reverse gnus-newsgroup-processable))
6082 (t
6083 ;; Just return the current article.
6084 (list (gnus-summary-article-number))))))
6085
6086(defmacro gnus-summary-iterate (arg &rest forms)
6087 "Iterate over the process/prefixed articles and do FORMS.
6088ARG is the interactive prefix given to the command. FORMS will be
6089executed with point over the summary line of the articles."
6090 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6091 `(let ((,articles (gnus-summary-work-articles ,arg)))
6092 (while ,articles
6093 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6094 ,@forms
6095 (pop ,articles)))))
6748645f
LMI
6096
6097(put 'gnus-summary-iterate 'lisp-indent-function 1)
6098(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6099
6100(defun gnus-summary-save-process-mark ()
6101 "Push the current set of process marked articles on the stack."
6102 (interactive)
6103 (push (copy-sequence gnus-newsgroup-processable)
6104 gnus-newsgroup-process-stack))
6105
6106(defun gnus-summary-kill-process-mark ()
6107 "Push the current set of process marked articles on the stack and unmark."
6108 (interactive)
6109 (gnus-summary-save-process-mark)
6110 (gnus-summary-unmark-all-processable))
6111
6112(defun gnus-summary-yank-process-mark ()
6113 "Pop the last process mark state off the stack and restore it."
6114 (interactive)
6115 (unless gnus-newsgroup-process-stack
6116 (error "Empty mark stack"))
6117 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6118
6119(defun gnus-summary-process-mark-set (set)
6120 "Make SET into the current process marked articles."
6121 (gnus-summary-unmark-all-processable)
6122 (while set
6123 (gnus-summary-set-process-mark (pop set))))
6124
6125;;; Searching and stuff
6126
6127(defun gnus-summary-search-group (&optional backward use-level)
6128 "Search for next unread newsgroup.
6129If optional argument BACKWARD is non-nil, search backward instead."
6130 (save-excursion
6131 (set-buffer gnus-group-buffer)
6132 (when (gnus-group-search-forward
6133 backward nil (if use-level (gnus-group-group-level) nil))
6134 (gnus-group-group-name))))
6135
6136(defun gnus-summary-best-group (&optional exclude-group)
6137 "Find the name of the best unread group.
6138If EXCLUDE-GROUP, do not go to this group."
6139 (save-excursion
6140 (set-buffer gnus-group-buffer)
6141 (save-excursion
6142 (gnus-group-best-unread-group exclude-group))))
6143
23f87bed
MB
6144(defun gnus-summary-find-next (&optional unread article backward)
6145 (if backward
6146 (gnus-summary-find-prev unread article)
eec82323
LMI
6147 (let* ((dummy (gnus-summary-article-intangible-p))
6148 (article (or article (gnus-summary-article-number)))
23f87bed 6149 (data (gnus-data-find-list article))
eec82323
LMI
6150 result)
6151 (when (and (not dummy)
6152 (or (not gnus-summary-check-current)
6153 (not unread)
23f87bed
MB
6154 (not (gnus-data-unread-p (car data)))))
6155 (setq data (cdr data)))
eec82323
LMI
6156 (when (setq result
6157 (if unread
6158 (progn
23f87bed
MB
6159 (while data
6160 (unless (memq (gnus-data-number (car data))
6161 (cond
6162 ((eq gnus-auto-goto-ignores
6163 'always-undownloaded)
6164 gnus-newsgroup-undownloaded)
6165 (gnus-plugged
6166 nil)
6167 ((eq gnus-auto-goto-ignores
6168 'unfetched)
6169 gnus-newsgroup-unfetched)
6170 ((eq gnus-auto-goto-ignores
6171 'undownloaded)
6172 gnus-newsgroup-undownloaded)))
6173 (when (gnus-data-unread-p (car data))
6174 (setq result (car data)
6175 data nil)))
6176 (setq data (cdr data)))
eec82323 6177 result)
23f87bed 6178 (car data)))
eec82323
LMI
6179 (goto-char (gnus-data-pos result))
6180 (gnus-data-number result)))))
6181
6182(defun gnus-summary-find-prev (&optional unread article)
6183 (let* ((eobp (eobp))
6184 (article (or article (gnus-summary-article-number)))
23f87bed 6185 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6186 result)
6187 (when (and (not eobp)
6188 (or (not gnus-summary-check-current)
6189 (not unread)
23f87bed
MB
6190 (not (gnus-data-unread-p (car data)))))
6191 (setq data (cdr data)))
eec82323
LMI
6192 (when (setq result
6193 (if unread
6194 (progn
23f87bed
MB
6195 (while data
6196 (unless (memq (gnus-data-number (car data))
6197 (cond
6198 ((eq gnus-auto-goto-ignores
6199 'always-undownloaded)
6200 gnus-newsgroup-undownloaded)
6201 (gnus-plugged
6202 nil)
6203 ((eq gnus-auto-goto-ignores
6204 'unfetched)
6205 gnus-newsgroup-unfetched)
6206 ((eq gnus-auto-goto-ignores
6207 'undownloaded)
6208 gnus-newsgroup-undownloaded)))
6209 (when (gnus-data-unread-p (car data))
6210 (setq result (car data)
6211 data nil)))
6212 (setq data (cdr data)))
eec82323 6213 result)
23f87bed 6214 (car data)))
eec82323
LMI
6215 (goto-char (gnus-data-pos result))
6216 (gnus-data-number result))))
6217
6218(defun gnus-summary-find-subject (subject &optional unread backward article)
6219 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6220 (article (or article (gnus-summary-article-number)))
6221 (articles (gnus-data-list backward))
6222 (arts (gnus-data-find-list article articles))
6223 result)
6224 (when (or (not gnus-summary-check-current)
6225 (not unread)
6226 (not (gnus-data-unread-p (car arts))))
6227 (setq arts (cdr arts)))
6228 (while arts
6229 (and (or (not unread)
6230 (gnus-data-unread-p (car arts)))
6231 (vectorp (gnus-data-header (car arts)))
6232 (gnus-subject-equal
6233 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6234 (setq result (car arts)
6235 arts nil))
6236 (setq arts (cdr arts)))
6237 (and result
6238 (goto-char (gnus-data-pos result))
6239 (gnus-data-number result))))
6240
6241(defun gnus-summary-search-forward (&optional unread subject backward)
6242 "Search forward for an article.
6243If UNREAD, look for unread articles. If SUBJECT, look for
6244articles with that subject. If BACKWARD, search backward instead."
6245 (cond (subject (gnus-summary-find-subject subject unread backward))
6246 (backward (gnus-summary-find-prev unread))
6247 (t (gnus-summary-find-next unread))))
6248
6249(defun gnus-recenter (&optional n)
6250 "Center point in window and redisplay frame.
6251Also do horizontal recentering."
6252 (interactive "P")
6253 (when (and gnus-auto-center-summary
6254 (not (eq gnus-auto-center-summary 'vertical)))
6255 (gnus-horizontal-recenter))
6256 (recenter n))
6257
6258(defun gnus-summary-recenter ()
6259 "Center point in the summary window.
6260If `gnus-auto-center-summary' is nil, or the article buffer isn't
6261displayed, no centering will be performed."
6262 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6263 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6264 (interactive)
23f87bed
MB
6265 ;; The user has to want it.
6266 (when gnus-auto-center-summary
6267 (let* ((top (cond ((< (window-height) 4) 0)
6268 ((< (window-height) 7) 1)
6269 (t (if (numberp gnus-auto-center-summary)
6270 gnus-auto-center-summary
6271 2))))
6272 (height (1- (window-height)))
6273 (bottom (save-excursion (goto-char (point-max))
6274 (forward-line (- height))
6275 (point)))
6276 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6277 (when (get-buffer-window gnus-article-buffer)
6278 ;; Only do recentering when the article buffer is displayed,
6279 ;; Set the window start to either `bottom', which is the biggest
6280 ;; possible valid number, or the second line from the top,
6281 ;; whichever is the least.
db7ebd73
MB
6282 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
6283 (if (> bottom top-pos)
6284 ;; Keep the second line from the top visible
6285 (set-window-start window top-pos t)
6286 ;; Try to keep the bottom line visible; if it's partially
6287 ;; obscured, either scroll one more line to make it fully
6288 ;; visible, or revert to using TOP-POS.
6289 (save-excursion
6290 (goto-char (point-max))
6291 (forward-line -1)
6292 (let ((last-line-start (point)))
6293 (goto-char bottom)
6294 (set-window-start window (point) t)
6295 (when (not (pos-visible-in-window-p last-line-start window))
6296 (forward-line 1)
6297 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6298 ;; Do horizontal recentering while we're at it.
6299 (when (and (get-buffer-window (current-buffer) t)
6300 (not (eq gnus-auto-center-summary 'vertical)))
6301 (let ((selected (selected-window)))
6302 (select-window (get-buffer-window (current-buffer) t))
6303 (gnus-summary-position-point)
6304 (gnus-horizontal-recenter)
6305 (select-window selected))))))
6306
6307(defun gnus-summary-jump-to-group (newsgroup)
6308 "Move point to NEWSGROUP in group mode buffer."
6309 ;; Keep update point of group mode buffer if visible.
6310 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6311 (save-window-excursion
6312 ;; Take care of tree window mode.
6313 (when (get-buffer-window gnus-group-buffer)
6314 (pop-to-buffer gnus-group-buffer))
6315 (gnus-group-jump-to-group newsgroup))
6316 (save-excursion
6317 ;; Take care of tree window mode.
6318 (if (get-buffer-window gnus-group-buffer)
6319 (pop-to-buffer gnus-group-buffer)
6320 (set-buffer gnus-group-buffer))
6321 (gnus-group-jump-to-group newsgroup))))
6322
6323;; This function returns a list of article numbers based on the
6324;; difference between the ranges of read articles in this group and
6325;; the range of active articles.
6326(defun gnus-list-of-unread-articles (group)
6327 (let* ((read (gnus-info-read (gnus-get-info group)))
6328 (active (or (gnus-active group) (gnus-activate-group group)))
6329 (last (cdr active))
6330 first nlast unread)
6331 ;; If none are read, then all are unread.
6332 (if (not read)
6333 (setq first (car active))
6334 ;; If the range of read articles is a single range, then the
6335 ;; first unread article is the article after the last read
6336 ;; article. Sounds logical, doesn't it?
16409b0b
GM
6337 (if (and (not (listp (cdr read)))
6338 (or (< (car read) (car active))
6339 (progn (setq read (list read))
6340 nil)))
6748645f 6341 (setq first (max (car active) (1+ (cdr read))))
eec82323
LMI
6342 ;; `read' is a list of ranges.
6343 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6344 (caar read)))
6345 1)
6748645f 6346 (setq first (car active)))
eec82323
LMI
6347 (while read
6348 (when first
6349 (while (< first nlast)
6350 (push first unread)
6351 (setq first (1+ first))))
6352 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6353 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6354 (setq read (cdr read)))))
6355 ;; And add the last unread articles.
6356 (while (<= first last)
6357 (push first unread)
6358 (setq first (1+ first)))
6359 ;; Return the list of unread articles.
6748645f 6360 (delq 0 (nreverse unread))))
eec82323
LMI
6361
6362(defun gnus-list-of-read-articles (group)
6363 "Return a list of unread, unticked and non-dormant articles."
6364 (let* ((info (gnus-get-info group))
6365 (marked (gnus-info-marks info))
6366 (active (gnus-active group)))
6367 (and info active
23f87bed
MB
6368 (gnus-list-range-difference
6369 (gnus-list-range-difference
6370 (gnus-sorted-complement
6371 (gnus-uncompress-range active)
6372 (gnus-list-of-unread-articles group))
6373 (cdr (assq 'dormant marked)))
6374 (cdr (assq 'tick marked))))))
eec82323
LMI
6375
6376;; Various summary commands
6377
6748645f
LMI
6378(defun gnus-summary-select-article-buffer ()
6379 "Reconfigure windows to show article buffer."
6380 (interactive)
6381 (if (not (gnus-buffer-live-p gnus-article-buffer))
6382 (error "There is no article buffer for this summary buffer")
6383 (gnus-configure-windows 'article)
6384 (select-window (get-buffer-window gnus-article-buffer))))
6385
eec82323
LMI
6386(defun gnus-summary-universal-argument (arg)
6387 "Perform any operation on all articles that are process/prefixed."
6388 (interactive "P")
eec82323
LMI
6389 (let ((articles (gnus-summary-work-articles arg))
6390 func article)
6391 (if (eq
6392 (setq
6393 func
6394 (key-binding
6395 (read-key-sequence
6396 (substitute-command-keys
16409b0b 6397 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6398 'undefined)
6399 (gnus-error 1 "Undefined key")
6400 (save-excursion
6401 (while articles
6402 (gnus-summary-goto-subject (setq article (pop articles)))
6403 (let (gnus-newsgroup-processable)
6404 (command-execute func))
6405 (gnus-summary-remove-process-mark article)))))
6406 (gnus-summary-position-point))
6407
6408(defun gnus-summary-toggle-truncation (&optional arg)
6409 "Toggle truncation of summary lines.
23f87bed 6410With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6411 (interactive "P")
6412 (setq truncate-lines
6413 (if (null arg) (not truncate-lines)
6414 (> (prefix-numeric-value arg) 0)))
6415 (redraw-display))
6416
23f87bed
MB
6417(defun gnus-summary-find-for-reselect ()
6418 "Return the number of an article to stay on across a reselect.
6419The current article is considered, then following articles, then previous
6420articles. An article is sought which is not cancelled and isn't a temporary
6421insertion from another group. If there's no such then return a dummy 0."
6422 (let (found)
6423 (dolist (rev '(nil t))
6424 (unless found ; don't demand the reverse list if we don't need it
6425 (let ((data (gnus-data-find-list
6426 (gnus-summary-article-number) (gnus-data-list rev))))
6427 (while (and data (not found))
6428 (if (and (< 0 (gnus-data-number (car data)))
6429 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6430 (setq found (gnus-data-number (car data))))
6431 (setq data (cdr data))))))
6432 (or found 0)))
6433
eec82323
LMI
6434(defun gnus-summary-reselect-current-group (&optional all rescan)
6435 "Exit and then reselect the current newsgroup.
6436The prefix argument ALL means to select all articles."
6437 (interactive "P")
eec82323
LMI
6438 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6439 (error "Ephemeral groups can't be reselected"))
23f87bed 6440 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6441 (group gnus-newsgroup-name))
6442 (setq gnus-newsgroup-begin nil)
23f87bed 6443 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6444 ;; We have to adjust the point of group mode buffer because
6445 ;; point was moved to the next unread newsgroup by exiting.
6446 (gnus-summary-jump-to-group group)
6447 (when rescan
6448 (save-excursion
6449 (gnus-group-get-new-news-this-group 1)))
6450 (gnus-group-read-group all t)
6451 (gnus-summary-goto-subject current-subject nil t)))
6452
6453(defun gnus-summary-rescan-group (&optional all)
6454 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6455 (interactive "P")
6456 (gnus-summary-reselect-current-group all t))
6457
6458(defun gnus-summary-update-info (&optional non-destructive)
6459 (save-excursion
6460 (let ((group gnus-newsgroup-name))
6748645f
LMI
6461 (when group
6462 (when gnus-newsgroup-kill-headers
6463 (setq gnus-newsgroup-killed
6464 (gnus-compress-sequence
23f87bed
MB
6465 (gnus-sorted-union
6466 (gnus-list-range-intersection
6467 gnus-newsgroup-unselected gnus-newsgroup-killed)
6468 gnus-newsgroup-unreads)
6748645f
LMI
6469 t)))
6470 (unless (listp (cdr gnus-newsgroup-killed))
6471 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
6472 (let ((headers gnus-newsgroup-headers))
6473 ;; Set the new ranges of read articles.
6474 (save-excursion
6475 (set-buffer gnus-group-buffer)
6476 (gnus-undo-force-boundary))
6477 (gnus-update-read-articles
23f87bed
MB
6478 group (gnus-sorted-union
6479 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
6480 ;; Set the current article marks.
6481 (let ((gnus-newsgroup-scored
6482 (if (and (not gnus-save-score)
6483 (not non-destructive))
6484 nil
6485 gnus-newsgroup-scored)))
6486 (save-excursion
6487 (gnus-update-marks)))
6488 ;; Do the cross-ref thing.
6489 (when gnus-use-cross-reference
6490 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
6491 ;; Do not switch windows but change the buffer to work.
a8151ef7 6492 (set-buffer gnus-group-buffer)
6748645f
LMI
6493 (unless (gnus-ephemeral-group-p group)
6494 (gnus-group-update-group group)))))))
eec82323
LMI
6495
6496(defun gnus-summary-save-newsrc (&optional force)
6497 "Save the current number of read/marked articles in the dribble buffer.
6498The dribble buffer will then be saved.
6499If FORCE (the prefix), also save the .newsrc file(s)."
6500 (interactive "P")
6501 (gnus-summary-update-info t)
6502 (if force
6503 (gnus-save-newsrc-file)
6504 (gnus-dribble-save)))
6505
23f87bed 6506(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 6507 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 6508`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
6509 (interactive)
6510 (gnus-set-global-variables)
16409b0b
GM
6511 (when (gnus-buffer-live-p gnus-article-buffer)
6512 (save-excursion
6513 (set-buffer gnus-article-buffer)
6514 (mm-destroy-parts gnus-article-mime-handles)
6515 ;; Set it to nil for safety reason.
6516 (setq gnus-article-mime-handle-alist nil)
6517 (setq gnus-article-mime-handles nil)))
eec82323 6518 (gnus-kill-save-kill-buffer)
6748645f 6519 (gnus-async-halt-prefetch)
eec82323
LMI
6520 (let* ((group gnus-newsgroup-name)
6521 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 6522 (gnus-group-is-exiting-p t)
eec82323 6523 (mode major-mode)
23f87bed 6524 (group-point nil)
eec82323 6525 (buf (current-buffer)))
16409b0b
GM
6526 (unless quit-config
6527 ;; Do adaptive scoring, and possibly save score files.
6528 (when gnus-newsgroup-adaptive
6529 (gnus-score-adaptive))
6530 (when gnus-use-scoring
6531 (gnus-score-save)))
6748645f 6532 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
6533 ;; If we have several article buffers, we kill them at exit.
6534 (unless gnus-single-article-buffer
6535 (gnus-kill-buffer gnus-original-article-buffer)
6536 (setq gnus-article-current nil))
6537 (when gnus-use-cache
6538 (gnus-cache-possibly-remove-articles)
6539 (gnus-cache-save-buffers))
6540 (gnus-async-prefetch-remove-group group)
6541 (when gnus-suppress-duplicates
6542 (gnus-dup-enter-articles))
6543 (when gnus-use-trees
6544 (gnus-tree-close group))
16409b0b
GM
6545 (when gnus-use-cache
6546 (gnus-cache-write-active))
6748645f
LMI
6547 ;; Remove entries for this group.
6548 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
6549 ;; Make all changes in this group permanent.
6550 (unless quit-config
6748645f 6551 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 6552 (gnus-summary-update-info))
eec82323
LMI
6553 (gnus-close-group group)
6554 ;; Make sure where we were, and go to next newsgroup.
6555 (set-buffer gnus-group-buffer)
6556 (unless quit-config
6557 (gnus-group-jump-to-group group))
6748645f
LMI
6558 (gnus-run-hooks 'gnus-summary-exit-hook)
6559 (unless (or quit-config
6560 ;; If this group has disappeared from the summary
6561 ;; buffer, don't skip forwards.
6562 (not (string= group (gnus-group-group-name))))
eec82323 6563 (gnus-group-next-unread-group 1))
a8151ef7 6564 (setq group-point (point))
eec82323
LMI
6565 (if temporary
6566 nil ;Nothing to do.
6567 ;; If we have several article buffers, we kill them at exit.
6568 (unless gnus-single-article-buffer
6569 (gnus-kill-buffer gnus-article-buffer)
6570 (gnus-kill-buffer gnus-original-article-buffer)
6571 (setq gnus-article-current nil))
6572 (set-buffer buf)
6573 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
6574 (progn
6575 (gnus-deaden-summary)
6576 (setq mode nil))
eec82323
LMI
6577 ;; We set all buffer-local variables to nil. It is unclear why
6578 ;; this is needed, but if we don't, buffer-local variables are
6579 ;; not garbage-collected, it seems. This would the lead to en
6580 ;; ever-growing Emacs.
6581 (gnus-summary-clear-local-variables)
23f87bed
MB
6582 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6583 (gnus-summary-clear-local-variables))
eec82323
LMI
6584 (when (get-buffer gnus-article-buffer)
6585 (bury-buffer gnus-article-buffer))
6586 ;; We clear the global counterparts of the buffer-local
6587 ;; variables as well, just to be on the safe side.
6588 (set-buffer gnus-group-buffer)
6589 (gnus-summary-clear-local-variables)
23f87bed
MB
6590 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6591 (gnus-summary-clear-local-variables))
eec82323
LMI
6592 ;; Return to group mode buffer.
6593 (when (eq mode 'gnus-summary-mode)
6594 (gnus-kill-buffer buf)))
6595 (setq gnus-current-select-method gnus-select-method)
23f87bed
MB
6596 (if leave-hidden
6597 (set-buffer gnus-group-buffer)
6598 (pop-to-buffer gnus-group-buffer))
eec82323
LMI
6599 (if (not quit-config)
6600 (progn
a8151ef7 6601 (goto-char group-point)
23f87bed
MB
6602 (unless leave-hidden
6603 (gnus-configure-windows 'group 'force)))
eec82323 6604 (gnus-handle-ephemeral-exit quit-config))
6748645f 6605 ;; Clear the current group name.
eec82323
LMI
6606 (unless quit-config
6607 (setq gnus-newsgroup-name nil)))))
6608
6609(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
6610(defun gnus-summary-exit-no-update (&optional no-questions)
6611 "Quit reading current newsgroup without updating read article info."
6612 (interactive)
eec82323 6613 (let* ((group gnus-newsgroup-name)
23f87bed
MB
6614 (gnus-group-is-exiting-p t)
6615 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
6616 (quit-config (gnus-group-quit-config group)))
6617 (when (or no-questions
6618 gnus-expert-user
6619 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 6620 (gnus-async-halt-prefetch)
23f87bed 6621 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b
GM
6622 (when (gnus-buffer-live-p gnus-article-buffer)
6623 (save-excursion
6624 (set-buffer gnus-article-buffer)
6625 (mm-destroy-parts gnus-article-mime-handles)
6626 ;; Set it to nil for safety reason.
6627 (setq gnus-article-mime-handle-alist nil)
6628 (setq gnus-article-mime-handles nil)))
eec82323
LMI
6629 ;; If we have several article buffers, we kill them at exit.
6630 (unless gnus-single-article-buffer
6631 (gnus-kill-buffer gnus-article-buffer)
6632 (gnus-kill-buffer gnus-original-article-buffer)
6633 (setq gnus-article-current nil))
6634 (if (not gnus-kill-summary-on-exit)
6635 (gnus-deaden-summary)
6636 (gnus-close-group group)
6637 (gnus-summary-clear-local-variables)
23f87bed
MB
6638 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6639 (gnus-summary-clear-local-variables))
eec82323
LMI
6640 (set-buffer gnus-group-buffer)
6641 (gnus-summary-clear-local-variables)
23f87bed
MB
6642 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6643 (gnus-summary-clear-local-variables))
6644 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
6645 (unless gnus-single-article-buffer
6646 (setq gnus-article-current nil))
6647 (when gnus-use-trees
6648 (gnus-tree-close group))
6649 (gnus-async-prefetch-remove-group group)
6650 (when (get-buffer gnus-article-buffer)
6651 (bury-buffer gnus-article-buffer))
6652 ;; Return to the group buffer.
6653 (gnus-configure-windows 'group 'force)
6654 ;; Clear the current group name.
6655 (setq gnus-newsgroup-name nil)
23f87bed
MB
6656 (unless (gnus-ephemeral-group-p group)
6657 (gnus-group-update-group group))
eec82323
LMI
6658 (when (equal (gnus-group-group-name) group)
6659 (gnus-group-next-unread-group 1))
6660 (when quit-config
23f87bed 6661 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
6662
6663(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
6664 "Handle movement when leaving an ephemeral group.
6665The state which existed when entering the ephemeral is reset."
eec82323
LMI
6666 (if (not (buffer-name (car quit-config)))
6667 (gnus-configure-windows 'group 'force)
6668 (set-buffer (car quit-config))
6669 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
6670 (gnus-set-global-variables))
6671 ((eq major-mode 'gnus-article-mode)
6672 (save-excursion
6673 ;; The `gnus-summary-buffer' variable may point
6674 ;; to the old summary buffer when using a single
6675 ;; article buffer.
6676 (unless (gnus-buffer-live-p gnus-summary-buffer)
6677 (set-buffer gnus-group-buffer))
6678 (set-buffer gnus-summary-buffer)
6679 (gnus-set-global-variables))))
eec82323 6680 (if (or (eq (cdr quit-config) 'article)
23f87bed
MB
6681 (eq (cdr quit-config) 'pick))
6682 (progn
6683 ;; The current article may be from the ephemeral group
6684 ;; thus it is best that we reload this article
6685 ;;
6686 ;; If we're exiting from a large digest, this can be
6687 ;; extremely slow. So, it's better not to reload it. -- jh.
6688 ;;(gnus-summary-show-article)
6689 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
6690 (gnus-configure-windows 'pick 'force)
6691 (gnus-configure-windows (cdr quit-config) 'force)))
eec82323
LMI
6692 (gnus-configure-windows (cdr quit-config) 'force))
6693 (when (eq major-mode 'gnus-summary-mode)
6694 (gnus-summary-next-subject 1 nil t)
6695 (gnus-summary-recenter)
6696 (gnus-summary-position-point))))
6697
6698;;; Dead summaries.
6699
6700(defvar gnus-dead-summary-mode-map nil)
6701
6702(unless gnus-dead-summary-mode-map
6703 (setq gnus-dead-summary-mode-map (make-keymap))
6704 (suppress-keymap gnus-dead-summary-mode-map)
6705 (substitute-key-definition
6706 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
23f87bed
MB
6707 (dolist (key '("\C-d" "\r" "\177" [delete]))
6708 (define-key gnus-dead-summary-mode-map
6709 key 'gnus-summary-wake-up-the-dead))
6710 (dolist (key '("q" "Q"))
6711 (define-key gnus-dead-summary-mode-map key 'bury-buffer)))
eec82323
LMI
6712
6713(defvar gnus-dead-summary-mode nil
6714 "Minor mode for Gnus summary buffers.")
6715
6716(defun gnus-dead-summary-mode (&optional arg)
6717 "Minor mode for Gnus summary buffers."
6718 (interactive "P")
6719 (when (eq major-mode 'gnus-summary-mode)
6720 (make-local-variable 'gnus-dead-summary-mode)
6721 (setq gnus-dead-summary-mode
6722 (if (null arg) (not gnus-dead-summary-mode)
6723 (> (prefix-numeric-value arg) 0)))
6724 (when gnus-dead-summary-mode
a8151ef7
LMI
6725 (gnus-add-minor-mode
6726 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI
6727
6728(defun gnus-deaden-summary ()
6729 "Make the current summary buffer into a dead summary buffer."
6730 ;; Kill any previous dead summary buffer.
6731 (when (and gnus-dead-summary
6732 (buffer-name gnus-dead-summary))
6733 (save-excursion
6734 (set-buffer gnus-dead-summary)
6735 (when gnus-dead-summary-mode
6736 (kill-buffer (current-buffer)))))
6737 ;; Make this the current dead summary.
6738 (setq gnus-dead-summary (current-buffer))
6739 (gnus-dead-summary-mode 1)
6740 (let ((name (buffer-name)))
6741 (when (string-match "Summary" name)
6742 (rename-buffer
6743 (concat (substring name 0 (match-beginning 0)) "Dead "
6744 (substring name (match-beginning 0)))
16409b0b
GM
6745 t)
6746 (bury-buffer))))
eec82323
LMI
6747
6748(defun gnus-kill-or-deaden-summary (buffer)
6749 "Kill or deaden the summary BUFFER."
6748645f
LMI
6750 (save-excursion
6751 (when (and (buffer-name buffer)
6752 (not gnus-single-article-buffer))
6753 (save-excursion
6754 (set-buffer buffer)
6755 (gnus-kill-buffer gnus-article-buffer)
6756 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
6757 (cond
6758 ;; Kill the buffer.
6759 (gnus-kill-summary-on-exit
6760 (when (and gnus-use-trees
6761 (gnus-buffer-exists-p buffer))
6762 (save-excursion
6763 (set-buffer buffer)
6764 (gnus-tree-close gnus-newsgroup-name)))
6765 (gnus-kill-buffer buffer))
6766 ;; Deaden the buffer.
6767 ((gnus-buffer-exists-p buffer)
6768 (save-excursion
6769 (set-buffer buffer)
6770 (gnus-deaden-summary))))))
eec82323
LMI
6771
6772(defun gnus-summary-wake-up-the-dead (&rest args)
6773 "Wake up the dead summary buffer."
6774 (interactive)
6775 (gnus-dead-summary-mode -1)
6776 (let ((name (buffer-name)))
6777 (when (string-match "Dead " name)
6778 (rename-buffer
6779 (concat (substring name 0 (match-beginning 0))
6780 (substring name (match-end 0)))
6781 t)))
6782 (gnus-message 3 "This dead summary is now alive again"))
6783
6784;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
6785(defun gnus-summary-fetch-faq (&optional faq-dir)
6786 "Fetch the FAQ for the current group.
6787If FAQ-DIR (the prefix), prompt for a directory to search for the faq
6788in."
6789 (interactive
6790 (list
6791 (when current-prefix-arg
6792 (completing-read
8f688cb0 6793 "FAQ dir: " (and (listp gnus-group-faq-directory)
a8151ef7
LMI
6794 (mapcar (lambda (file) (list file))
6795 gnus-group-faq-directory))))))
eec82323
LMI
6796 (let (gnus-faq-buffer)
6797 (when (setq gnus-faq-buffer
6798 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
6799 (gnus-configure-windows 'summary-faq))))
6800
6801;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
6802(defun gnus-summary-describe-group (&optional force)
6803 "Describe the current newsgroup."
6804 (interactive "P")
6805 (gnus-group-describe-group force gnus-newsgroup-name))
6806
6807(defun gnus-summary-describe-briefly ()
6808 "Describe summary mode commands briefly."
6809 (interactive)
16409b0b 6810 (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
6811
6812;; Walking around group mode buffer from summary mode.
6813
6814(defun gnus-summary-next-group (&optional no-article target-group backward)
6815 "Exit current newsgroup and then select next unread newsgroup.
6816If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 6817initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
6818previous group instead."
6819 (interactive "P")
eec82323
LMI
6820 ;; Stop pre-fetching.
6821 (gnus-async-halt-prefetch)
6822 (let ((current-group gnus-newsgroup-name)
6823 (current-buffer (current-buffer))
6824 entered)
6825 ;; First we semi-exit this group to update Xrefs and all variables.
6826 ;; We can't do a real exit, because the window conf must remain
6827 ;; the same in case the user is prompted for info, and we don't
6828 ;; want the window conf to change before that...
6829 (gnus-summary-exit t)
6830 (while (not entered)
6831 ;; Then we find what group we are supposed to enter.
6832 (set-buffer gnus-group-buffer)
6833 (gnus-group-jump-to-group current-group)
6834 (setq target-group
6835 (or target-group
6836 (if (eq gnus-keep-same-level 'best)
6837 (gnus-summary-best-group gnus-newsgroup-name)
6838 (gnus-summary-search-group backward gnus-keep-same-level))))
6839 (if (not target-group)
6840 ;; There are no further groups, so we return to the group
6841 ;; buffer.
6842 (progn
6843 (gnus-message 5 "Returning to the group buffer")
6844 (setq entered t)
6845 (when (gnus-buffer-live-p current-buffer)
6846 (set-buffer current-buffer)
6847 (gnus-summary-exit))
6748645f 6848 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
6849 ;; We try to enter the target group.
6850 (gnus-group-jump-to-group target-group)
6851 (let ((unreads (gnus-group-group-unread)))
6852 (if (and (or (eq t unreads)
6853 (and unreads (not (zerop unreads))))
23f87bed
MB
6854 (gnus-summary-read-group
6855 target-group nil no-article
6856 (and (buffer-name current-buffer) current-buffer)
6857 nil backward))
eec82323
LMI
6858 (setq entered t)
6859 (setq current-group target-group
6860 target-group nil)))))))
6861
6862(defun gnus-summary-prev-group (&optional no-article)
6863 "Exit current newsgroup and then select previous unread newsgroup.
6864If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
6865 (interactive "P")
6866 (gnus-summary-next-group no-article nil t))
6867
6868;; Walking around summary lines.
6869
23f87bed
MB
6870(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
6871 "Go to the first subject satisfying any non-nil constraint.
6872If UNREAD is non-nil, the article should be unread.
6873If UNDOWNLOADED is non-nil, the article should be undownloaded.
6874If UNSEEN is non-nil, the article should be unseen.
6875Returns the article selected or nil if there are no matching articles."
eec82323 6876 (interactive "P")
23f87bed
MB
6877 (cond
6878 ;; Empty summary.
6879 ((null gnus-newsgroup-data)
6880 (gnus-message 3 "No articles in the group")
6881 nil)
6882 ;; Pick the first article.
6883 ((not (or unread undownloaded unseen))
6884 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
6885 (gnus-data-number (car gnus-newsgroup-data)))
6886 ;; Find the first unread article.
6887 (t
6888 (let ((data gnus-newsgroup-data))
6889 (while (and data
6890 (let ((num (gnus-data-number (car data))))
6891 (or (memq num gnus-newsgroup-unfetched)
6892 (not (or (and unread
6893 (memq num gnus-newsgroup-unreads))
6894 (and undownloaded
6895 (memq num gnus-newsgroup-undownloaded))
6896 (and unseen
6897 (memq num gnus-newsgroup-unseen)))))))
6898 (setq data (cdr data)))
6899 (prog1
6900 (if data
6901 (progn
6902 (goto-char (gnus-data-pos (car data)))
6903 (gnus-data-number (car data)))
6904 (gnus-message 3 "No more%s articles"
6905 (let* ((r (when unread " unread"))
6906 (d (when undownloaded " undownloaded"))
6907 (s (when unseen " unseen"))
6908 (l (delq nil (list r d s))))
6909 (cond ((= 3 (length l))
6910 (concat r "," d ", or" s))
6911 ((= 2 (length l))
6912 (concat (car l) ", or" (cadr l)))
6913 ((= 1 (length l))
6914 (car l))
6915 (t
6916 ""))))
6917 nil
6918 )
6919 (gnus-summary-position-point))))))
eec82323
LMI
6920
6921(defun gnus-summary-next-subject (n &optional unread dont-display)
6922 "Go to next N'th summary line.
6923If N is negative, go to the previous N'th subject line.
6924If UNREAD is non-nil, only unread articles are selected.
6925The difference between N and the actual number of steps taken is
6926returned."
6927 (interactive "p")
6928 (let ((backward (< n 0))
6929 (n (abs n)))
6930 (while (and (> n 0)
6931 (if backward
6932 (gnus-summary-find-prev unread)
6933 (gnus-summary-find-next unread)))
16409b0b
GM
6934 (unless (zerop (setq n (1- n)))
6935 (gnus-summary-show-thread)))
eec82323
LMI
6936 (when (/= 0 n)
6937 (gnus-message 7 "No more%s articles"
6938 (if unread " unread" "")))
6939 (unless dont-display
6940 (gnus-summary-recenter)
6941 (gnus-summary-position-point))
6942 n))
6943
6944(defun gnus-summary-next-unread-subject (n)
6945 "Go to next N'th unread summary line."
6946 (interactive "p")
6947 (gnus-summary-next-subject n t))
6948
6949(defun gnus-summary-prev-subject (n &optional unread)
6950 "Go to previous N'th summary line.
6951If optional argument UNREAD is non-nil, only unread article is selected."
6952 (interactive "p")
6953 (gnus-summary-next-subject (- n) unread))
6954
6955(defun gnus-summary-prev-unread-subject (n)
6956 "Go to previous N'th unread summary line."
6957 (interactive "p")
6958 (gnus-summary-next-subject (- n) t))
6959
23f87bed
MB
6960(defun gnus-summary-goto-subjects (articles)
6961 "Insert the subject header for ARTICLES in the current buffer."
6962 (save-excursion
6963 (dolist (article articles)
6964 (gnus-summary-goto-subject article t)))
6965 (gnus-summary-limit (append articles gnus-newsgroup-limit))
6966 (gnus-summary-position-point))
6967
eec82323
LMI
6968(defun gnus-summary-goto-subject (article &optional force silent)
6969 "Go the subject line of ARTICLE.
6970If FORCE, also allow jumping to articles not currently shown."
6971 (interactive "nArticle number: ")
23f87bed
MB
6972 (unless (numberp article)
6973 (error "Article %s is not a number" article))
eec82323
LMI
6974 (let ((b (point))
6975 (data (gnus-data-find article)))
6976 ;; We read in the article if we have to.
6977 (and (not data)
6978 force
6748645f
LMI
6979 (gnus-summary-insert-subject
6980 article
6981 (if (or (numberp force) (vectorp force)) force)
6982 t)
eec82323
LMI
6983 (setq data (gnus-data-find article)))
6984 (goto-char b)
6985 (if (not data)
6986 (progn
6987 (unless silent
6988 (gnus-message 3 "Can't find article %d" article))
6989 nil)
23f87bed
MB
6990 (let ((pt (gnus-data-pos data)))
6991 (goto-char pt)
6992 (gnus-summary-set-article-display-arrow pt))
6748645f 6993 (gnus-summary-position-point)
eec82323
LMI
6994 article)))
6995
6996;; Walking around summary lines with displaying articles.
6997
6998(defun gnus-summary-expand-window (&optional arg)
6999 "Make the summary buffer take up the entire Emacs frame.
7000Given a prefix, will force an `article' buffer configuration."
7001 (interactive "P")
eec82323
LMI
7002 (if arg
7003 (gnus-configure-windows 'article 'force)
7004 (gnus-configure-windows 'summary 'force)))
7005
7006(defun gnus-summary-display-article (article &optional all-header)
7007 "Display ARTICLE in article buffer."
d4dfaa19
DL
7008 (when (gnus-buffer-live-p gnus-article-buffer)
7009 (with-current-buffer gnus-article-buffer
87545352 7010 (mm-enable-multibyte)))
eec82323 7011 (gnus-set-global-variables)
23f87bed
MB
7012 (when (gnus-buffer-live-p gnus-article-buffer)
7013 (with-current-buffer gnus-article-buffer
7014 (setq gnus-article-charset gnus-newsgroup-charset)
7015 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7016 (mm-enable-multibyte)))
eec82323
LMI
7017 (if (null article)
7018 nil
7019 (prog1
7020 (if gnus-summary-display-article-function
7021 (funcall gnus-summary-display-article-function article all-header)
7022 (gnus-article-prepare article all-header))
6748645f 7023 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7024 (when (and gnus-current-article
7025 (not (zerop gnus-current-article)))
7026 (gnus-summary-goto-subject gnus-current-article))
7027 (gnus-summary-recenter)
7028 (when (and gnus-use-trees gnus-show-threads)
7029 (gnus-possibly-generate-tree article)
7030 (gnus-highlight-selected-tree article))
7031 ;; Successfully display article.
7032 (gnus-article-set-window-start
7033 (cdr (assq article gnus-newsgroup-bookmarks))))))
7034
7035(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7036 "Select the current article.
7037If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7038non-nil, the article will be re-fetched even if it already present in
7039the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7040be displayed."
7041 ;; Make sure we are in the summary buffer to work around bbdb bug.
7042 (unless (eq major-mode 'gnus-summary-mode)
7043 (set-buffer gnus-summary-buffer))
7044 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7045 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7046 gnus-summary-display-article-function)
eec82323
LMI
7047 (and (not pseudo)
7048 (gnus-summary-article-pseudo-p article)
a8151ef7 7049 (error "This is a pseudo-article"))
16409b0b
GM
7050 (save-excursion
7051 (set-buffer gnus-summary-buffer)
7052 (if (or (and gnus-single-article-buffer
7053 (or (null gnus-current-article)
7054 (null gnus-article-current)
7055 (null (get-buffer gnus-article-buffer))
7056 (not (eq article (cdr gnus-article-current)))
7057 (not (equal (car gnus-article-current)
7058 gnus-newsgroup-name))))
7059 (and (not gnus-single-article-buffer)
7060 (or (null gnus-current-article)
7061 (not (eq gnus-current-article article))))
7062 force)
7063 ;; The requested article is different from the current article.
7064 (progn
16409b0b
GM
7065 (gnus-summary-display-article article all-headers)
7066 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7067 (with-current-buffer gnus-article-buffer
16409b0b 7068 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7069 (mm-disable-multibyte))))
16409b0b
GM
7070 (gnus-article-set-window-start
7071 (cdr (assq article gnus-newsgroup-bookmarks)))
7072 article)
16409b0b 7073 'old))))
eec82323 7074
23f87bed
MB
7075(defun gnus-summary-force-verify-and-decrypt ()
7076 "Display buttons for signed/encrypted parts and verify/decrypt them."
7077 (interactive)
7078 (let ((mm-verify-option 'known)
7079 (mm-decrypt-option 'known)
7080 (gnus-article-emulate-mime t)
7081 (gnus-buttonized-mime-types (append (list "multipart/signed"
7082 "multipart/encrypted")
7083 gnus-buttonized-mime-types)))
7084 (gnus-summary-select-article nil 'force)))
7085
eec82323
LMI
7086(defun gnus-summary-set-current-mark (&optional current-mark)
7087 "Obsolete function."
7088 nil)
7089
7090(defun gnus-summary-next-article (&optional unread subject backward push)
7091 "Select the next article.
7092If UNREAD, only unread articles are selected.
7093If SUBJECT, only articles with SUBJECT are selected.
7094If BACKWARD, the previous article is selected instead of the next."
7095 (interactive "P")
eec82323
LMI
7096 (cond
7097 ;; Is there such an article?
7098 ((and (gnus-summary-search-forward unread subject backward)
7099 (or (gnus-summary-display-article (gnus-summary-article-number))
7100 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7101 (gnus-summary-position-point))
7102 ;; If not, we try the first unread, if that is wanted.
7103 ((and subject
7104 gnus-auto-select-same
7105 (gnus-summary-first-unread-article))
7106 (gnus-summary-position-point)
7107 (gnus-message 6 "Wrapped"))
7108 ;; Try to get next/previous article not displayed in this group.
7109 ((and gnus-auto-extend-newsgroup
7110 (not unread) (not subject))
7111 (gnus-summary-goto-article
7112 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7113 nil (count-lines (point-min) (point))))
eec82323
LMI
7114 ;; Go to next/previous group.
7115 (t
7116 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7117 (gnus-summary-jump-to-group gnus-newsgroup-name))
7118 (let ((cmd last-command-char)
7119 (point
7120 (save-excursion
7121 (set-buffer gnus-group-buffer)
7122 (point)))
7123 (group
7124 (if (eq gnus-keep-same-level 'best)
7125 (gnus-summary-best-group gnus-newsgroup-name)
7126 (gnus-summary-search-group backward gnus-keep-same-level))))
7127 ;; For some reason, the group window gets selected. We change
7128 ;; it back.
7129 (select-window (get-buffer-window (current-buffer)))
7130 ;; Select next unread newsgroup automagically.
7131 (cond
7132 ((or (not gnus-auto-select-next)
7133 (not cmd))
7134 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7135 ((or (eq gnus-auto-select-next 'quietly)
7136 (and (eq gnus-auto-select-next 'slightly-quietly)
7137 push)
7138 (and (eq gnus-auto-select-next 'almost-quietly)
7139 (gnus-summary-last-article-p)))
7140 ;; Select quietly.
7141 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7142 (gnus-summary-exit)
7143 (gnus-message 7 "No more%s articles (%s)..."
7144 (if unread " unread" "")
7145 (if group (concat "selecting " group)
7146 "exiting"))
7147 (gnus-summary-next-group nil group backward)))
7148 (t
7149 (when (gnus-key-press-event-p last-input-event)
7150 (gnus-summary-walk-group-buffer
7151 gnus-newsgroup-name cmd unread backward point))))))))
7152
7153(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7154 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7155 (?\C-p (gnus-group-prev-unread-group 1))))
7156 (cursor-in-echo-area t)
23f87bed 7157 keve key group ended prompt)
eec82323
LMI
7158 (save-excursion
7159 (set-buffer gnus-group-buffer)
7160 (goto-char start)
7161 (setq group
7162 (if (eq gnus-keep-same-level 'best)
7163 (gnus-summary-best-group gnus-newsgroup-name)
7164 (gnus-summary-search-group backward gnus-keep-same-level))))
7165 (while (not ended)
23f87bed
MB
7166 (setq prompt
7167 (format
7168 "No more%s articles%s " (if unread " unread" "")
7169 (if (and group
7170 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7171 (format " (Type %s for %s [%s])"
7172 (single-key-description cmd) group
7173 (car (gnus-gethash group gnus-newsrc-hashtb)))
7174 (format " (Type %s to exit %s)"
7175 (single-key-description cmd)
7176 gnus-newsgroup-name))))
eec82323 7177 ;; Confirm auto selection.
23f87bed
MB
7178 (setq key (car (setq keve (gnus-read-event-char prompt)))
7179 ended t)
eec82323
LMI
7180 (cond
7181 ((assq key keystrokes)
7182 (let ((obuf (current-buffer)))
7183 (switch-to-buffer gnus-group-buffer)
7184 (when group
7185 (gnus-group-jump-to-group group))
7186 (eval (cadr (assq key keystrokes)))
7187 (setq group (gnus-group-group-name))
7188 (switch-to-buffer obuf))
7189 (setq ended nil))
7190 ((equal key cmd)
7191 (if (or (not group)
7192 (gnus-ephemeral-group-p gnus-newsgroup-name))
7193 (gnus-summary-exit)
7194 (gnus-summary-next-group nil group backward)))
7195 (t
7196 (push (cdr keve) unread-command-events))))))
7197
7198(defun gnus-summary-next-unread-article ()
7199 "Select unread article after current one."
7200 (interactive)
7201 (gnus-summary-next-article
7202 (or (not (eq gnus-summary-goto-unread 'never))
7203 (gnus-summary-last-article-p (gnus-summary-article-number)))
7204 (and gnus-auto-select-same
7205 (gnus-summary-article-subject))))
7206
7207(defun gnus-summary-prev-article (&optional unread subject)
7208 "Select the article after the current one.
7209If UNREAD is non-nil, only unread articles are selected."
7210 (interactive "P")
7211 (gnus-summary-next-article unread subject t))
7212
7213(defun gnus-summary-prev-unread-article ()
7214 "Select unread article before current one."
7215 (interactive)
7216 (gnus-summary-prev-article
7217 (or (not (eq gnus-summary-goto-unread 'never))
7218 (gnus-summary-first-article-p (gnus-summary-article-number)))
7219 (and gnus-auto-select-same
7220 (gnus-summary-article-subject))))
7221
23f87bed 7222(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7223 "Show next page of the selected article.
7224If at the end of the current article, select the next article.
7225LINES says how many lines should be scrolled up.
7226
7227If CIRCULAR is non-nil, go to the start of the article instead of
7228selecting the next article when reaching the end of the current
23f87bed
MB
7229article.
7230
7231If STOP is non-nil, just stop when reaching the end of the message.
7232
7233Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7234 (interactive "P")
7235 (setq gnus-summary-buffer (current-buffer))
7236 (gnus-set-global-variables)
7237 (let ((article (gnus-summary-article-number))
7238 (article-window (get-buffer-window gnus-article-buffer t))
7239 endp)
6748645f
LMI
7240 ;; If the buffer is empty, we have no article.
7241 (unless article
7242 (error "No article to select"))
eec82323
LMI
7243 (gnus-configure-windows 'article)
7244 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7245 (if (and (eq gnus-summary-goto-unread 'never)
7246 (not (gnus-summary-last-article-p article)))
7247 (gnus-summary-next-article)
7248 (gnus-summary-next-unread-article))
7249 (if (or (null gnus-current-article)
7250 (null gnus-article-current)
7251 (/= article (cdr gnus-article-current))
7252 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7253 ;; Selected subject is different from current article's.
7254 (gnus-summary-display-article article)
7255 (when article-window
7256 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7257 (setq endp (or (gnus-article-next-page lines)
7258 (gnus-article-only-boring-p))))
eec82323 7259 (when endp
23f87bed
MB
7260 (cond (stop
7261 (gnus-message 3 "End of message"))
7262 (circular
eec82323
LMI
7263 (gnus-summary-beginning-of-article))
7264 (lines
7265 (gnus-message 3 "End of message"))
7266 ((null lines)
7267 (if (and (eq gnus-summary-goto-unread 'never)
7268 (not (gnus-summary-last-article-p article)))
7269 (gnus-summary-next-article)
7270 (gnus-summary-next-unread-article))))))))
7271 (gnus-summary-recenter)
7272 (gnus-summary-position-point)))
7273
7274(defun gnus-summary-prev-page (&optional lines move)
7275 "Show previous page of selected article.
7276Argument LINES specifies lines to be scrolled down.
7277If MOVE, move to the previous unread article if point is at
7278the beginning of the buffer."
7279 (interactive "P")
eec82323
LMI
7280 (let ((article (gnus-summary-article-number))
7281 (article-window (get-buffer-window gnus-article-buffer t))
7282 endp)
7283 (gnus-configure-windows 'article)
7284 (if (or (null gnus-current-article)
7285 (null gnus-article-current)
7286 (/= article (cdr gnus-article-current))
7287 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7288 ;; Selected subject is different from current article's.
7289 (gnus-summary-display-article article)
7290 (gnus-summary-recenter)
7291 (when article-window
7292 (gnus-eval-in-buffer-window gnus-article-buffer
7293 (setq endp (gnus-article-prev-page lines)))
7294 (when (and move endp)
7295 (cond (lines
7296 (gnus-message 3 "Beginning of message"))
7297 ((null lines)
7298 (if (and (eq gnus-summary-goto-unread 'never)
7299 (not (gnus-summary-first-article-p article)))
7300 (gnus-summary-prev-article)
7301 (gnus-summary-prev-unread-article))))))))
7302 (gnus-summary-position-point))
7303
7304(defun gnus-summary-prev-page-or-article (&optional lines)
7305 "Show previous page of selected article.
7306Argument LINES specifies lines to be scrolled down.
7307If at the beginning of the article, go to the next article."
7308 (interactive "P")
7309 (gnus-summary-prev-page lines t))
7310
7311(defun gnus-summary-scroll-up (lines)
7312 "Scroll up (or down) one line current article.
7313Argument LINES specifies lines to be scrolled up (or down if negative)."
7314 (interactive "p")
eec82323
LMI
7315 (gnus-configure-windows 'article)
7316 (gnus-summary-show-thread)
7317 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7318 (gnus-eval-in-buffer-window gnus-article-buffer
7319 (cond ((> lines 0)
7320 (when (gnus-article-next-page lines)
7321 (gnus-message 3 "End of message")))
7322 ((< lines 0)
7323 (gnus-article-prev-page (- lines))))))
7324 (gnus-summary-recenter)
7325 (gnus-summary-position-point))
7326
6748645f
LMI
7327(defun gnus-summary-scroll-down (lines)
7328 "Scroll down (or up) one line current article.
7329Argument LINES specifies lines to be scrolled down (or up if negative)."
7330 (interactive "p")
7331 (gnus-summary-scroll-up (- lines)))
7332
eec82323
LMI
7333(defun gnus-summary-next-same-subject ()
7334 "Select next article which has the same subject as current one."
7335 (interactive)
eec82323
LMI
7336 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7337
7338(defun gnus-summary-prev-same-subject ()
7339 "Select previous article which has the same subject as current one."
7340 (interactive)
eec82323
LMI
7341 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7342
7343(defun gnus-summary-next-unread-same-subject ()
7344 "Select next unread article which has the same subject as current one."
7345 (interactive)
eec82323
LMI
7346 (gnus-summary-next-article t (gnus-summary-article-subject)))
7347
7348(defun gnus-summary-prev-unread-same-subject ()
7349 "Select previous unread article which has the same subject as current one."
7350 (interactive)
eec82323
LMI
7351 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7352
7353(defun gnus-summary-first-unread-article ()
7354 "Select the first unread article.
7355Return nil if there are no unread articles."
7356 (interactive)
eec82323
LMI
7357 (prog1
7358 (when (gnus-summary-first-subject t)
7359 (gnus-summary-show-thread)
7360 (gnus-summary-first-subject t)
7361 (gnus-summary-display-article (gnus-summary-article-number)))
7362 (gnus-summary-position-point)))
7363
16409b0b
GM
7364(defun gnus-summary-first-unread-subject ()
7365 "Place the point on the subject line of the first unread article.
7366Return nil if there are no unread articles."
7367 (interactive)
7368 (prog1
7369 (when (gnus-summary-first-subject t)
7370 (gnus-summary-show-thread)
7371 (gnus-summary-first-subject t))
7372 (gnus-summary-position-point)))
7373
23f87bed
MB
7374(defun gnus-summary-first-unseen-subject ()
7375 "Place the point on the subject line of the first unseen article.
7376Return nil if there are no unseen articles."
7377 (interactive)
7378 (prog1
7379 (when (gnus-summary-first-subject nil nil t)
7380 (gnus-summary-show-thread)
7381 (gnus-summary-first-subject nil nil t))
7382 (gnus-summary-position-point)))
7383
7384(defun gnus-summary-first-unseen-or-unread-subject ()
7385 "Place the point on the subject line of the first unseen article or,
7386if all article have been seen, on the subject line of the first unread
7387article."
7388 (interactive)
7389 (prog1
7390 (unless (when (gnus-summary-first-subject nil nil t)
7391 (gnus-summary-show-thread)
7392 (gnus-summary-first-subject nil nil t))
7393 (when (gnus-summary-first-subject t)
7394 (gnus-summary-show-thread)
7395 (gnus-summary-first-subject t)))
7396 (gnus-summary-position-point)))
7397
eec82323
LMI
7398(defun gnus-summary-first-article ()
7399 "Select the first article.
7400Return nil if there are no articles."
7401 (interactive)
eec82323
LMI
7402 (prog1
7403 (when (gnus-summary-first-subject)
16409b0b
GM
7404 (gnus-summary-show-thread)
7405 (gnus-summary-first-subject)
7406 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7407 (gnus-summary-position-point)))
7408
23f87bed
MB
7409(defun gnus-summary-best-unread-article (&optional arg)
7410 "Select the unread article with the highest score.
7411If given a prefix argument, select the next unread article that has a
7412score higher than the default score."
7413 (interactive "P")
7414 (let ((article (if arg
7415 (gnus-summary-better-unread-subject)
7416 (gnus-summary-best-unread-subject))))
7417 (if article
7418 (gnus-summary-goto-article article)
7419 (error "No unread articles"))))
7420
7421(defun gnus-summary-best-unread-subject ()
7422 "Select the unread subject with the highest score."
eec82323 7423 (interactive)
eec82323
LMI
7424 (let ((best -1000000)
7425 (data gnus-newsgroup-data)
7426 article score)
7427 (while data
7428 (and (gnus-data-unread-p (car data))
7429 (> (setq score
7430 (gnus-summary-article-score (gnus-data-number (car data))))
7431 best)
7432 (setq best score
7433 article (gnus-data-number (car data))))
7434 (setq data (cdr data)))
23f87bed
MB
7435 (when article
7436 (gnus-summary-goto-subject article))
7437 (gnus-summary-position-point)
7438 article))
7439
7440(defun gnus-summary-better-unread-subject ()
7441 "Select the first unread subject that has a score over the default score."
7442 (interactive)
7443 (let ((data gnus-newsgroup-data)
7444 article score)
7445 (while (and (setq article (gnus-data-number (car data)))
7446 (or (gnus-data-read-p (car data))
7447 (not (> (gnus-summary-article-score article)
7448 gnus-summary-default-score))))
7449 (setq data (cdr data)))
7450 (when article
7451 (gnus-summary-goto-subject article))
7452 (gnus-summary-position-point)
7453 article))
eec82323
LMI
7454
7455(defun gnus-summary-last-subject ()
7456 "Go to the last displayed subject line in the group."
7457 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7458 (when article
7459 (gnus-summary-goto-subject article))))
7460
7461(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7462 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7463If ALL-HEADERS is non-nil, no header lines are hidden.
7464If FORCE, go to the article even if it isn't displayed. If FORCE
7465is a number, it is the line the article is to be displayed on."
eec82323
LMI
7466 (interactive
7467 (list
6748645f
LMI
7468 (completing-read
7469 "Article number or Message-ID: "
7470 (mapcar (lambda (number) (list (int-to-string number)))
7471 gnus-newsgroup-limit))
eec82323
LMI
7472 current-prefix-arg
7473 t))
7474 (prog1
6748645f 7475 (if (and (stringp article)
23f87bed 7476 (string-match "@\\|%40" article))
6748645f
LMI
7477 (gnus-summary-refer-article article)
7478 (when (stringp article)
7479 (setq article (string-to-number article)))
7480 (if (gnus-summary-goto-subject article force)
7481 (gnus-summary-display-article article all-headers)
7482 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
7483 (gnus-summary-position-point)))
7484
7485(defun gnus-summary-goto-last-article ()
7486 "Go to the previously read article."
7487 (interactive)
7488 (prog1
7489 (when gnus-last-article
6748645f 7490 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
7491 (gnus-summary-position-point)))
7492
7493(defun gnus-summary-pop-article (number)
7494 "Pop one article off the history and go to the previous.
7495NUMBER articles will be popped off."
7496 (interactive "p")
7497 (let (to)
7498 (setq gnus-newsgroup-history
7499 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
7500 (if to
6748645f 7501 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
7502 (error "Article history empty")))
7503 (gnus-summary-position-point))
7504
7505;; Summary commands and functions for limiting the summary buffer.
7506
7507(defun gnus-summary-limit-to-articles (n)
7508 "Limit the summary buffer to the next N articles.
7509If not given a prefix, use the process marked articles instead."
7510 (interactive "P")
eec82323
LMI
7511 (prog1
7512 (let ((articles (gnus-summary-work-articles n)))
7513 (setq gnus-newsgroup-processable nil)
7514 (gnus-summary-limit articles))
7515 (gnus-summary-position-point)))
7516
7517(defun gnus-summary-pop-limit (&optional total)
7518 "Restore the previous limit.
7519If given a prefix, remove all limits."
7520 (interactive "P")
eec82323
LMI
7521 (when total
7522 (setq gnus-newsgroup-limits
7523 (list (mapcar (lambda (h) (mail-header-number h))
7524 gnus-newsgroup-headers))))
7525 (unless gnus-newsgroup-limits
7526 (error "No limit to pop"))
7527 (prog1
7528 (gnus-summary-limit nil 'pop)
7529 (gnus-summary-position-point)))
7530
47b63dfa
SZ
7531(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
7532 "Limit the summary buffer to articles that have subjects that match a regexp.
7533If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 7534 (interactive
47b63dfa
SZ
7535 (list (read-string (if current-prefix-arg
7536 "Exclude subject (regexp): "
a1506d29 7537 "Limit to subject (regexp): "))
47b63dfa 7538 nil current-prefix-arg))
eec82323
LMI
7539 (unless header
7540 (setq header "subject"))
7541 (when (not (equal "" subject))
7542 (prog1
7543 (let ((articles (gnus-summary-find-matching
a1506d29 7544 (or header "subject") subject 'all nil nil
47b63dfa 7545 not-matching)))
eec82323
LMI
7546 (unless articles
7547 (error "Found no matches for \"%s\"" subject))
7548 (gnus-summary-limit articles))
7549 (gnus-summary-position-point))))
7550
ef6e0ec7 7551(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
7552 "Limit the summary buffer to articles that have authors that match a regexp.
7553If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 7554 (interactive
47b63dfa
SZ
7555 (list (read-string (if current-prefix-arg
7556 "Exclude author (regexp): "
a1506d29 7557 "Limit to author (regexp): "))
ef6e0ec7
SZ
7558 current-prefix-arg))
7559 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323
LMI
7560
7561(defun gnus-summary-limit-to-age (age &optional younger-p)
7562 "Limit the summary buffer to articles that are older than (or equal) AGE days.
7563If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
7564articles that are younger than AGE days."
16409b0b
GM
7565 (interactive
7566 (let ((younger current-prefix-arg)
7567 (days-got nil)
7568 days)
7569 (while (not days-got)
7570 (setq days (if younger
23f87bed
MB
7571 (read-string "Limit to articles younger than (in days, older when negative): ")
7572 (read-string
7573 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
7574 (when (> (length days) 0)
7575 (setq days (read days)))
7576 (if (numberp days)
23f87bed
MB
7577 (progn
7578 (setq days-got t)
7579 (if (< days 0)
7580 (progn
7581 (setq younger (not younger))
7582 (setq days (* days -1)))))
16409b0b
GM
7583 (message "Please enter a number.")
7584 (sleep-for 1)))
7585 (list days younger)))
eec82323
LMI
7586 (prog1
7587 (let ((data gnus-newsgroup-data)
16409b0b 7588 (cutoff (days-to-time age))
eec82323
LMI
7589 articles d date is-younger)
7590 (while (setq d (pop data))
7591 (when (and (vectorp (gnus-data-header d))
7592 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM
7593 (setq is-younger (time-less-p
7594 (time-since (condition-case ()
7595 (date-to-time date)
7596 (error '(0 0))))
eec82323 7597 cutoff))
6748645f
LMI
7598 (when (if younger-p
7599 is-younger
7600 (not is-younger))
eec82323
LMI
7601 (push (gnus-data-number d) articles))))
7602 (gnus-summary-limit (nreverse articles)))
7603 (gnus-summary-position-point)))
7604
47b63dfa 7605(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
7606 "Limit the summary buffer to articles that match an 'extra' header."
7607 (interactive
7608 (let ((header
7609 (intern
23f87bed 7610 (gnus-completing-read-with-default
16409b0b 7611 (symbol-name (car gnus-extra-headers))
47b63dfa
SZ
7612 (if current-prefix-arg
7613 "Exclude extra header:"
7614 "Limit extra header:")
16409b0b
GM
7615 (mapcar (lambda (x)
7616 (cons (symbol-name x) x))
7617 gnus-extra-headers)
7618 nil
7619 t))))
7620 (list header
a1506d29 7621 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
7622 (if current-prefix-arg "Exclude" "Limit to")
7623 header))
7624 current-prefix-arg)))
16409b0b
GM
7625 (when (not (equal "" regexp))
7626 (prog1
7627 (let ((articles (gnus-summary-find-matching
a1506d29 7628 (cons 'extra header) regexp 'all nil nil
47b63dfa 7629 not-matching)))
16409b0b
GM
7630 (unless articles
7631 (error "Found no matches for \"%s\"" regexp))
7632 (gnus-summary-limit articles))
7633 (gnus-summary-position-point))))
7634
23f87bed
MB
7635(defun gnus-summary-limit-to-display-predicate ()
7636 "Limit the summary buffer to the predicated in the `display' group parameter."
7637 (interactive)
7638 (unless gnus-newsgroup-display
7639 (error "There is no `display' group parameter"))
7640 (let (articles)
7641 (dolist (number gnus-newsgroup-articles)
7642 (when (funcall gnus-newsgroup-display)
7643 (push number articles)))
7644 (gnus-summary-limit articles))
7645 (gnus-summary-position-point))
7646
eec82323
LMI
7647(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
7648(make-obsolete
7649 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
7650
7651(defun gnus-summary-limit-to-unread (&optional all)
7652 "Limit the summary buffer to articles that are not marked as read.
7653If ALL is non-nil, limit strictly to unread articles."
7654 (interactive "P")
7655 (if all
7656 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
7657 (gnus-summary-limit-to-marks
7658 ;; Concat all the marks that say that an article is read and have
7659 ;; those removed.
7660 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 7661 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
7662 gnus-low-score-mark gnus-expirable-mark
7663 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
7664 gnus-duplicate-mark gnus-souped-mark)
7665 'reverse)))
7666
7667(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
7668(make-obsolete 'gnus-summary-delete-marked-with
81ceefe2 7669 'gnus-summary-limit-exclude-marks)
eec82323
LMI
7670
7671(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
7672 "Exclude articles that are marked with MARKS (e.g. \"DK\").
7673If REVERSE, limit the summary buffer to articles that are marked
7674with MARKS. MARKS can either be a string of marks or a list of marks.
7675Returns how many articles were removed."
7676 (interactive "sMarks: ")
7677 (gnus-summary-limit-to-marks marks t))
7678
7679(defun gnus-summary-limit-to-marks (marks &optional reverse)
7680 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
7681If REVERSE (the prefix), limit the summary buffer to articles that are
7682not marked with MARKS. MARKS can either be a string of marks or a
7683list of marks.
7684Returns how many articles were removed."
6748645f 7685 (interactive "sMarks: \nP")
eec82323
LMI
7686 (prog1
7687 (let ((data gnus-newsgroup-data)
7688 (marks (if (listp marks) marks
7689 (append marks nil))) ; Transform to list.
7690 articles)
7691 (while data
7692 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
7693 (memq (gnus-data-mark (car data)) marks))
7694 (push (gnus-data-number (car data)) articles))
7695 (setq data (cdr data)))
7696 (gnus-summary-limit articles))
7697 (gnus-summary-position-point)))
7698
23f87bed 7699(defun gnus-summary-limit-to-score (score)
eec82323 7700 "Limit to articles with score at or above SCORE."
23f87bed 7701 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
7702 (let ((data gnus-newsgroup-data)
7703 articles)
7704 (while data
7705 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
7706 score)
7707 (push (gnus-data-number (car data)) articles))
7708 (setq data (cdr data)))
7709 (prog1
7710 (gnus-summary-limit articles)
7711 (gnus-summary-position-point))))
7712
23f87bed
MB
7713(defun gnus-summary-limit-to-unseen ()
7714 "Limit to unseen articles."
7715 (interactive)
7716 (prog1
7717 (gnus-summary-limit gnus-newsgroup-unseen)
7718 (gnus-summary-position-point)))
7719
6748645f 7720(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
7721 "Display all the hidden articles that is in the thread with ID in it.
7722When called interactively, ID is the Message-ID of the current
7723article."
6748645f
LMI
7724 (interactive (list (mail-header-id (gnus-summary-article-header))))
7725 (let ((articles (gnus-articles-in-thread
7726 (gnus-id-to-thread (gnus-root-id id)))))
7727 (prog1
7728 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
7729 (gnus-summary-limit-include-matching-articles
7730 "subject"
7731 (regexp-quote (gnus-simplify-subject-re
7732 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
7733 (gnus-summary-position-point))))
7734
23f87bed
MB
7735(defun gnus-summary-limit-include-matching-articles (header regexp)
7736 "Display all the hidden articles that have HEADERs that match REGEXP."
7737 (interactive (list (read-string "Match on header: ")
7738 (read-string "Regexp: ")))
7739 (let ((articles (gnus-find-matching-articles header regexp)))
7740 (prog1
7741 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
7742 (gnus-summary-position-point))))
7743
7744(defun gnus-summary-insert-dormant-articles ()
7745 "Insert all the dormant articles for this group into the current buffer."
7746 (interactive)
7747 (let ((gnus-verbose (max 6 gnus-verbose)))
7748 (if (not gnus-newsgroup-dormant)
7749 (gnus-message 3 "No cached articles for this group")
7750 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
7751
eec82323 7752(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
7753 "Display all the hidden articles that are marked as dormant.
7754Note that this command only works on a subset of the articles currently
7755fetched for this group."
eec82323 7756 (interactive)
eec82323
LMI
7757 (unless gnus-newsgroup-dormant
7758 (error "There are no dormant articles in this group"))
7759 (prog1
7760 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
7761 (gnus-summary-position-point)))
7762
7763(defun gnus-summary-limit-exclude-dormant ()
7764 "Hide all dormant articles."
7765 (interactive)
eec82323
LMI
7766 (prog1
7767 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
7768 (gnus-summary-position-point)))
7769
7770(defun gnus-summary-limit-exclude-childless-dormant ()
7771 "Hide all dormant articles that have no children."
7772 (interactive)
eec82323
LMI
7773 (let ((data (gnus-data-list t))
7774 articles d children)
7775 ;; Find all articles that are either not dormant or have
7776 ;; children.
7777 (while (setq d (pop data))
7778 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
7779 (and (setq children
7780 (gnus-article-children (gnus-data-number d)))
7781 (let (found)
7782 (while children
7783 (when (memq (car children) articles)
7784 (setq children nil
7785 found t))
7786 (pop children))
7787 found)))
7788 (push (gnus-data-number d) articles)))
7789 ;; Do the limiting.
7790 (prog1
7791 (gnus-summary-limit articles)
7792 (gnus-summary-position-point))))
7793
7794(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
7795 "Mark all unread excluded articles as read.
7796If ALL, mark even excluded ticked and dormants as read."
7797 (interactive "P")
23f87bed
MB
7798 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
7799 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
7800 (sort
7801 (mapcar (lambda (h) (mail-header-number h))
7802 gnus-newsgroup-headers)
7803 '<)
23f87bed 7804 gnus-newsgroup-limit))
eec82323 7805 article)
6748645f 7806 (setq gnus-newsgroup-unreads
23f87bed
MB
7807 (gnus-sorted-intersection gnus-newsgroup-unreads
7808 gnus-newsgroup-limit))
eec82323
LMI
7809 (if all
7810 (setq gnus-newsgroup-dormant nil
7811 gnus-newsgroup-marked nil
7812 gnus-newsgroup-reads
7813 (nconc
7814 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
7815 gnus-newsgroup-reads))
7816 (while (setq article (pop articles))
7817 (unless (or (memq article gnus-newsgroup-dormant)
7818 (memq article gnus-newsgroup-marked))
7819 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
7820
7821(defun gnus-summary-limit (articles &optional pop)
7822 (if pop
7823 ;; We pop the previous limit off the stack and use that.
7824 (setq articles (car gnus-newsgroup-limits)
7825 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
7826 ;; We use the new limit, so we push the old limit on the stack.
7827 (push gnus-newsgroup-limit gnus-newsgroup-limits))
7828 ;; Set the limit.
7829 (setq gnus-newsgroup-limit articles)
7830 (let ((total (length gnus-newsgroup-data))
7831 (data (gnus-data-find-list (gnus-summary-article-number)))
7832 (gnus-summary-mark-below nil) ; Inhibit this.
7833 found)
7834 ;; This will do all the work of generating the new summary buffer
7835 ;; according to the new limit.
7836 (gnus-summary-prepare)
7837 ;; Hide any threads, possibly.
23f87bed 7838 (gnus-summary-maybe-hide-threads)
eec82323
LMI
7839 ;; Try to return to the article you were at, or one in the
7840 ;; neighborhood.
7841 (when data
7842 ;; We try to find some article after the current one.
7843 (while data
7844 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
7845 (setq data nil
7846 found t))
7847 (setq data (cdr data))))
7848 (unless found
7849 ;; If there is no data, that means that we were after the last
7850 ;; article. The same goes when we can't find any articles
7851 ;; after the current one.
7852 (goto-char (point-max))
7853 (gnus-summary-find-prev))
6748645f 7854 (gnus-set-mode-line 'summary)
eec82323
LMI
7855 ;; We return how many articles were removed from the summary
7856 ;; buffer as a result of the new limit.
7857 (- total (length gnus-newsgroup-data))))
7858
7859(defsubst gnus-invisible-cut-children (threads)
7860 (let ((num 0))
7861 (while threads
7862 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
7863 (incf num))
7864 (pop threads))
7865 (< num 2)))
7866
7867(defsubst gnus-cut-thread (thread)
7868 "Go forwards in the thread until we find an article that we want to display."
7869 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 7870 (eq gnus-fetch-old-headers 'invisible)
16409b0b 7871 (numberp gnus-fetch-old-headers)
eec82323
LMI
7872 (eq gnus-build-sparse-threads 'some)
7873 (eq gnus-build-sparse-threads 'more))
7874 ;; Deal with old-fetched headers and sparse threads.
7875 (while (and
7876 thread
7877 (or
7878 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
7879 (gnus-summary-article-ancient-p
7880 (mail-header-number (car thread))))
6748645f
LMI
7881 (if (or (<= (length (cdr thread)) 1)
7882 (eq gnus-fetch-old-headers 'invisible))
7883 (setq gnus-newsgroup-limit
7884 (delq (mail-header-number (car thread))
7885 gnus-newsgroup-limit)
7886 thread (cadr thread))
7887 (when (gnus-invisible-cut-children (cdr thread))
7888 (let ((th (cdr thread)))
7889 (while th
7890 (if (memq (mail-header-number (caar th))
a8151ef7 7891 gnus-newsgroup-limit)
6748645f
LMI
7892 (setq thread (car th)
7893 th nil)
7894 (setq th (cdr th))))))))))
eec82323
LMI
7895 thread)
7896
7897(defun gnus-cut-threads (threads)
23f87bed 7898 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 7899 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 7900 (eq gnus-fetch-old-headers 'invisible)
16409b0b 7901 (numberp gnus-fetch-old-headers)
eec82323
LMI
7902 (eq gnus-build-sparse-threads 'some)
7903 (eq gnus-build-sparse-threads 'more))
7904 (let ((th threads))
7905 (while th
7906 (setcar th (gnus-cut-thread (car th)))
7907 (setq th (cdr th)))))
7908 ;; Remove nixed out threads.
7909 (delq nil threads))
7910
7911(defun gnus-summary-initial-limit (&optional show-if-empty)
7912 "Figure out what the initial limit is supposed to be on group entry.
7913This entails weeding out unwanted dormants, low-scored articles,
7914fetch-old-headers verbiage, and so on."
7915 ;; Most groups have nothing to remove.
7916 (if (or gnus-inhibit-limiting
7917 (and (null gnus-newsgroup-dormant)
23f87bed 7918 (eq gnus-newsgroup-display 'gnus-not-ignore)
eec82323 7919 (not (eq gnus-fetch-old-headers 'some))
16409b0b 7920 (not (numberp gnus-fetch-old-headers))
6748645f 7921 (not (eq gnus-fetch-old-headers 'invisible))
eec82323
LMI
7922 (null gnus-summary-expunge-below)
7923 (not (eq gnus-build-sparse-threads 'some))
7924 (not (eq gnus-build-sparse-threads 'more))
7925 (null gnus-thread-expunge-below)
7926 (not gnus-use-nocem)))
7927 () ; Do nothing.
7928 (push gnus-newsgroup-limit gnus-newsgroup-limits)
7929 (setq gnus-newsgroup-limit nil)
7930 (mapatoms
7931 (lambda (node)
7932 (unless (car (symbol-value node))
7933 ;; These threads have no parents -- they are roots.
7934 (let ((nodes (cdr (symbol-value node)))
7935 thread)
7936 (while nodes
7937 (if (and gnus-thread-expunge-below
7938 (< (gnus-thread-total-score (car nodes))
7939 gnus-thread-expunge-below))
7940 (gnus-expunge-thread (pop nodes))
7941 (setq thread (pop nodes))
7942 (gnus-summary-limit-children thread))))))
7943 gnus-newsgroup-dependencies)
7944 ;; If this limitation resulted in an empty group, we might
7945 ;; pop the previous limit and use it instead.
7946 (when (and (not gnus-newsgroup-limit)
7947 show-if-empty)
7948 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
7949 gnus-newsgroup-limit))
7950
7951(defun gnus-summary-limit-children (thread)
7952 "Return 1 if this subthread is visible and 0 if it is not."
7953 ;; First we get the number of visible children to this thread. This
7954 ;; is done by recursing down the thread using this function, so this
7955 ;; will really go down to a leaf article first, before slowly
7956 ;; working its way up towards the root.
7957 (when thread
23f87bed
MB
7958 (let* ((max-lisp-eval-depth 5000)
7959 (children
eec82323
LMI
7960 (if (cdr thread)
7961 (apply '+ (mapcar 'gnus-summary-limit-children
7962 (cdr thread)))
7963 0))
7964 (number (mail-header-number (car thread)))
7965 score)
7966 (if (and
7967 (not (memq number gnus-newsgroup-marked))
7968 (or
7969 ;; If this article is dormant and has absolutely no visible
7970 ;; children, then this article isn't visible.
7971 (and (memq number gnus-newsgroup-dormant)
7972 (zerop children))
7973 ;; If this is "fetch-old-headered" and there is no
7974 ;; visible children, then we don't want this article.
16409b0b
GM
7975 (and (or (eq gnus-fetch-old-headers 'some)
7976 (numberp gnus-fetch-old-headers))
eec82323
LMI
7977 (gnus-summary-article-ancient-p number)
7978 (zerop children))
6748645f
LMI
7979 ;; If this is "fetch-old-headered" and `invisible', then
7980 ;; we don't want this article.
7981 (and (eq gnus-fetch-old-headers 'invisible)
7982 (gnus-summary-article-ancient-p number))
eec82323
LMI
7983 ;; If this is a sparsely inserted article with no children,
7984 ;; we don't want it.
7985 (and (eq gnus-build-sparse-threads 'some)
7986 (gnus-summary-article-sparse-p number)
7987 (zerop children))
7988 ;; If we use expunging, and this article is really
7989 ;; low-scored, then we don't want this article.
7990 (when (and gnus-summary-expunge-below
7991 (< (setq score
7992 (or (cdr (assq number gnus-newsgroup-scored))
7993 gnus-summary-default-score))
7994 gnus-summary-expunge-below))
7995 ;; We increase the expunge-tally here, but that has
7996 ;; nothing to do with the limits, really.
7997 (incf gnus-newsgroup-expunged-tally)
7998 ;; We also mark as read here, if that's wanted.
7999 (when (and gnus-summary-mark-below
8000 (< score gnus-summary-mark-below))
8001 (setq gnus-newsgroup-unreads
8002 (delq number gnus-newsgroup-unreads))
8003 (if gnus-newsgroup-auto-expire
8004 (push number gnus-newsgroup-expirable)
8005 (push (cons number gnus-low-score-mark)
8006 gnus-newsgroup-reads)))
8007 t)
23f87bed
MB
8008 ;; Do the `display' group parameter.
8009 (and gnus-newsgroup-display
8010 (not (funcall gnus-newsgroup-display)))
eec82323
LMI
8011 ;; Check NoCeM things.
8012 (if (and gnus-use-nocem
8013 (gnus-nocem-unwanted-article-p
8014 (mail-header-id (car thread))))
8015 (progn
a8151ef7 8016 (setq gnus-newsgroup-unreads
eec82323
LMI
8017 (delq number gnus-newsgroup-unreads))
8018 t))))
8019 ;; Nope, invisible article.
8020 0
8021 ;; Ok, this article is to be visible, so we add it to the limit
8022 ;; and return 1.
8023 (push number gnus-newsgroup-limit)
8024 1))))
8025
8026(defun gnus-expunge-thread (thread)
8027 "Mark all articles in THREAD as read."
8028 (let* ((number (mail-header-number (car thread))))
8029 (incf gnus-newsgroup-expunged-tally)
8030 ;; We also mark as read here, if that's wanted.
8031 (setq gnus-newsgroup-unreads
8032 (delq number gnus-newsgroup-unreads))
8033 (if gnus-newsgroup-auto-expire
8034 (push number gnus-newsgroup-expirable)
8035 (push (cons number gnus-low-score-mark)
8036 gnus-newsgroup-reads)))
8037 ;; Go recursively through all subthreads.
8038 (mapcar 'gnus-expunge-thread (cdr thread)))
8039
8040;; Summary article oriented commands
8041
8042(defun gnus-summary-refer-parent-article (n)
8043 "Refer parent article N times.
8044If N is negative, go to ancestor -N instead.
8045The difference between N and the number of articles fetched is returned."
8046 (interactive "p")
eec82323
LMI
8047 (let ((skip 1)
8048 error header ref)
8049 (when (not (natnump n))
8050 (setq skip (abs n)
8051 n 1))
8052 (while (and (> n 0)
8053 (not error))
8054 (setq header (gnus-summary-article-header))
8055 (if (and (eq (mail-header-number header)
8056 (cdr gnus-article-current))
8057 (equal gnus-newsgroup-name
8058 (car gnus-article-current)))
8059 ;; If we try to find the parent of the currently
8060 ;; displayed article, then we take a look at the actual
8061 ;; References header, since this is slightly more
8062 ;; reliable than the References field we got from the
8063 ;; server.
8064 (save-excursion
8065 (set-buffer gnus-original-article-buffer)
8066 (nnheader-narrow-to-headers)
8067 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8068 (when (setq ref (message-fetch-field "in-reply-to"))
8069 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8070 (widen))
8071 (setq ref
8072 ;; It's not the current article, so we take a bet on
8073 ;; the value we got from the server.
8074 (mail-header-references header)))
8075 (if (and ref
8076 (not (equal ref "")))
8077 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8078 (gnus-message 1 "Couldn't find parent"))
8079 (gnus-message 1 "No references in article %d"
8080 (gnus-summary-article-number))
8081 (setq error t))
8082 (decf n))
8083 (gnus-summary-position-point)
8084 n))
8085
8086(defun gnus-summary-refer-references ()
8087 "Fetch all articles mentioned in the References header.
6748645f 8088Return the number of articles fetched."
eec82323 8089 (interactive)
eec82323
LMI
8090 (let ((ref (mail-header-references (gnus-summary-article-header)))
8091 (current (gnus-summary-article-number))
8092 (n 0))
8093 (if (or (not ref)
8094 (equal ref ""))
8095 (error "No References in the current article")
8096 ;; For each Message-ID in the References header...
8097 (while (string-match "<[^>]*>" ref)
8098 (incf n)
8099 ;; ... fetch that article.
8100 (gnus-summary-refer-article
8101 (prog1 (match-string 0 ref)
8102 (setq ref (substring ref (match-end 0))))))
8103 (gnus-summary-goto-subject current)
8104 (gnus-summary-position-point)
8105 n)))
8106
6748645f
LMI
8107(defun gnus-summary-refer-thread (&optional limit)
8108 "Fetch all articles in the current thread.
8109If LIMIT (the numerical prefix), fetch that many old headers instead
8110of what's specified by the `gnus-refer-thread-limit' variable."
8111 (interactive "P")
8112 (let ((id (mail-header-id (gnus-summary-article-header)))
8113 (limit (if limit (prefix-numeric-value limit)
8114 gnus-refer-thread-limit)))
6748645f
LMI
8115 (unless (eq gnus-fetch-old-headers 'invisible)
8116 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8117 ;; Retrieve the headers and read them in.
23f87bed
MB
8118 (if (eq (if (numberp limit)
8119 (gnus-retrieve-headers
8120 (list (min
8121 (+ (mail-header-number
8122 (gnus-summary-article-header))
8123 limit)
8124 gnus-newsgroup-end))
8125 gnus-newsgroup-name (* limit 2))
8126 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8127 ;; headers.
8128 (gnus-retrieve-headers (list gnus-newsgroup-end)
8129 gnus-newsgroup-name limit))
6748645f
LMI
8130 'nov)
8131 (gnus-build-all-threads)
23f87bed 8132 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8133 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8134 (gnus-summary-limit-include-thread id)))
8135
16409b0b
GM
8136(defun gnus-summary-refer-article (message-id)
8137 "Fetch an article specified by MESSAGE-ID."
8138 (interactive "sMessage-ID: ")
eec82323
LMI
8139 (when (and (stringp message-id)
8140 (not (zerop (length message-id))))
23f87bed 8141 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8142 ;; Construct the correct Message-ID if necessary.
8143 ;; Suggested by tale@pawl.rpi.edu.
8144 (unless (string-match "^<" message-id)
8145 (setq message-id (concat "<" message-id)))
8146 (unless (string-match ">$" message-id)
8147 (setq message-id (concat message-id ">")))
23f87bed
MB
8148 ;; People often post MIDs from URLs, so unhex it:
8149 (unless (string-match "@" message-id)
8150 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8151 (let* ((header (gnus-id-to-header message-id))
8152 (sparse (and header
8153 (gnus-summary-article-sparse-p
a8151ef7
LMI
8154 (mail-header-number header))
8155 (memq (mail-header-number header)
16409b0b
GM
8156 gnus-newsgroup-limit)))
8157 number)
6748645f
LMI
8158 (cond
8159 ;; If the article is present in the buffer we just go to it.
8160 ((and header
8161 (or (not (gnus-summary-article-sparse-p
8162 (mail-header-number header)))
8163 sparse))
8164 (prog1
8165 (gnus-summary-goto-article
8166 (mail-header-number header) nil t)
8167 (when sparse
8168 (gnus-summary-update-article (mail-header-number header)))))
8169 (t
16409b0b
GM
8170 ;; We fetch the article.
8171 (catch 'found
8172 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8173 (when (and (gnus-check-server gnus-override-method)
8174 ;; Fetch the header,
8175 (setq number (gnus-summary-insert-subject message-id)))
8176 ;; and display the article.
eec82323 8177 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8178 (throw 'found t)))
8179 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8180
8181(defun gnus-refer-article-methods ()
8f688cb0 8182 "Return a list of referable methods."
16409b0b
GM
8183 (cond
8184 ;; No method, so we default to current and native.
8185 ((null gnus-refer-article-method)
8186 (list gnus-current-select-method gnus-select-method))
8187 ;; Current.
8188 ((eq 'current gnus-refer-article-method)
8189 (list gnus-current-select-method))
8190 ;; List of select methods.
d4dfaa19
DL
8191 ((not (and (symbolp (car gnus-refer-article-method))
8192 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8193 (let (out)
8194 (dolist (method gnus-refer-article-method)
8195 (push (if (eq 'current method)
8196 gnus-current-select-method
8197 method)
8198 out))
8199 (nreverse out)))
8200 ;; One single select method.
8201 (t
8202 (list gnus-refer-article-method))))
6748645f
LMI
8203
8204(defun gnus-summary-edit-parameters ()
8205 "Edit the group parameters of the current group."
8206 (interactive)
8207 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8208
16409b0b
GM
8209(defun gnus-summary-customize-parameters ()
8210 "Customize the group parameters of the current group."
8211 (interactive)
8212 (gnus-group-customize gnus-newsgroup-name))
8213
eec82323
LMI
8214(defun gnus-summary-enter-digest-group (&optional force)
8215 "Enter an nndoc group based on the current article.
8216If FORCE, force a digest interpretation. If not, try
8217to guess what the document format is."
8218 (interactive "P")
eec82323 8219 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8220 (save-window-excursion
8221 (save-excursion
8222 (let (gnus-article-prepare-hook
8223 gnus-display-mime-function
8224 gnus-break-pages)
8225 (gnus-summary-select-article))))
eec82323
LMI
8226 (setq gnus-current-window-configuration conf)
8227 (let* ((name (format "%s-%d"
8228 (gnus-group-prefixed-name
8229 gnus-newsgroup-name (list 'nndoc ""))
8230 (save-excursion
8231 (set-buffer gnus-summary-buffer)
8232 gnus-current-article)))
8233 (ogroup gnus-newsgroup-name)
8234 (params (append (gnus-info-params (gnus-get-info ogroup))
8235 (list (cons 'to-group ogroup))
23f87bed 8236 (list (cons 'parent-group ogroup))
eec82323
LMI
8237 (list (cons 'save-article-group ogroup))))
8238 (case-fold-search t)
8239 (buf (current-buffer))
16409b0b 8240 dig to-address)
eec82323 8241 (save-excursion
16409b0b
GM
8242 (set-buffer gnus-original-article-buffer)
8243 ;; Have the digest group inherit the main mail address of
8244 ;; the parent article.
23f87bed
MB
8245 (when (setq to-address (or (gnus-fetch-field "reply-to")
8246 (gnus-fetch-field "from")))
a1506d29
JB
8247 (setq params (append
8248 (list (cons 'to-address
d4dfaa19
DL
8249 (funcall gnus-decode-encoded-word-function
8250 to-address))))))
eec82323
LMI
8251 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8252 (insert-buffer-substring gnus-original-article-buffer)
8253 ;; Remove lines that may lead nndoc to misinterpret the
8254 ;; document type.
8255 (narrow-to-region
8256 (goto-char (point-min))
8257 (or (search-forward "\n\n" nil t) (point)))
8258 (goto-char (point-min))
16409b0b 8259 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8260 (widen))
8261 (unwind-protect
23f87bed 8262 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8263 (gnus-newsgroup-ephemeral-ignored-charsets
8264 gnus-newsgroup-ignored-charsets))
8265 (gnus-group-read-ephemeral-group
8266 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8267 (nndoc-article-type
23f87bed
MB
8268 ,(if force 'mbox 'guess)))
8269 t nil nil nil
8270 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8271 "ADAPT")))))
16409b0b 8272 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8273 (nconc (gnus-info-params (gnus-get-info name))
8274 params)
8275 ;; Couldn't select this doc group.
8276 (switch-to-buffer buf)
8277 (gnus-set-global-variables)
8278 (gnus-configure-windows 'summary)
8279 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8280 (kill-buffer dig)))))
8281
8282(defun gnus-summary-read-document (n)
8283 "Open a new group based on the current article(s).
8284This will allow you to read digests and other similar
8285documents as newsgroups.
8286Obeys the standard process/prefix convention."
8287 (interactive "P")
8288 (let* ((articles (gnus-summary-work-articles n))
8289 (ogroup gnus-newsgroup-name)
8290 (params (append (gnus-info-params (gnus-get-info ogroup))
8291 (list (cons 'to-group ogroup))))
8292 article group egroup groups vgroup)
8293 (while (setq article (pop articles))
8294 (setq group (format "%s-%d" gnus-newsgroup-name article))
8295 (gnus-summary-remove-process-mark article)
8296 (when (gnus-summary-display-article article)
8297 (save-excursion
16409b0b 8298 (with-temp-buffer
eec82323
LMI
8299 (insert-buffer-substring gnus-original-article-buffer)
8300 ;; Remove some headers that may lead nndoc to make
8301 ;; the wrong guess.
8302 (message-narrow-to-head)
8303 (goto-char (point-min))
8304 (delete-matching-lines "^\\(Path\\):\\|^From ")
8305 (widen)
8306 (if (setq egroup
8307 (gnus-group-read-ephemeral-group
8308 group `(nndoc ,group (nndoc-address ,(current-buffer))
8309 (nndoc-article-type guess))
8310 t nil t))
8311 (progn
23f87bed 8312 ;; Make all postings to this group go to the parent group.
eec82323
LMI
8313 (nconc (gnus-info-params (gnus-get-info egroup))
8314 params)
8315 (push egroup groups))
8316 ;; Couldn't select this doc group.
8317 (gnus-error 3 "Article couldn't be entered"))))))
8318 ;; Now we have selected all the documents.
8319 (cond
8320 ((not groups)
8321 (error "None of the articles could be interpreted as documents"))
8322 ((gnus-group-read-ephemeral-group
8323 (setq vgroup (format
8324 "nnvirtual:%s-%s" gnus-newsgroup-name
8325 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
8326 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
8327 t
8328 (cons (current-buffer) 'summary)))
8329 (t
8330 (error "Couldn't select virtual nndoc group")))))
8331
8332(defun gnus-summary-isearch-article (&optional regexp-p)
8333 "Do incremental search forward on the current article.
8334If REGEXP-P (the prefix) is non-nil, do regexp isearch."
8335 (interactive "P")
eec82323
LMI
8336 (gnus-summary-select-article)
8337 (gnus-configure-windows 'article)
8338 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
8339 (save-restriction
8340 (widen)
8341 (isearch-forward regexp-p))))
eec82323
LMI
8342
8343(defun gnus-summary-search-article-forward (regexp &optional backward)
8344 "Search for an article containing REGEXP forward.
8345If BACKWARD, search backward instead."
8346 (interactive
8347 (list (read-string
8348 (format "Search article %s (regexp%s): "
8349 (if current-prefix-arg "backward" "forward")
8350 (if gnus-last-search-regexp
8351 (concat ", default " gnus-last-search-regexp)
8352 "")))
8353 current-prefix-arg))
eec82323
LMI
8354 (if (string-equal regexp "")
8355 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
8356 (setq gnus-last-search-regexp regexp)
8357 (setq gnus-article-before-search gnus-current-article))
8358 ;; Intentionally set gnus-last-article.
8359 (setq gnus-last-article gnus-article-before-search)
8360 (let ((gnus-last-article gnus-last-article))
8361 (if (gnus-summary-search-article regexp backward)
8362 (gnus-summary-show-thread)
abc40aab 8363 (signal 'search-failed (list regexp)))))
eec82323
LMI
8364
8365(defun gnus-summary-search-article-backward (regexp)
8366 "Search for an article containing REGEXP backward."
8367 (interactive
8368 (list (read-string
8369 (format "Search article backward (regexp%s): "
8370 (if gnus-last-search-regexp
8371 (concat ", default " gnus-last-search-regexp)
8372 "")))))
8373 (gnus-summary-search-article-forward regexp 'backward))
8374
8375(defun gnus-summary-search-article (regexp &optional backward)
8376 "Search for an article containing REGEXP.
8377Optional argument BACKWARD means do search for backward.
8378`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
8379 ;; We have to require this here to make sure that the following
8380 ;; dynamic binding isn't shadowed by autoloading.
8381 (require 'gnus-async)
16409b0b 8382 (require 'gnus-art)
eec82323 8383 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 8384 (gnus-article-prepare-hook nil)
eec82323
LMI
8385 (gnus-mark-article-hook nil) ;Inhibit marking as read.
8386 (gnus-use-article-prefetch nil)
8387 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 8388 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
8389 (gnus-visual nil)
8390 (gnus-keep-backlog nil)
8391 (gnus-break-pages nil)
8392 (gnus-summary-display-arrow nil)
8393 (gnus-updated-mode-lines nil)
8394 (gnus-auto-center-summary nil)
eec82323 8395 (sum (current-buffer))
16409b0b 8396 (gnus-display-mime-function nil)
eec82323
LMI
8397 (found nil)
8398 point)
8399 (gnus-save-hidden-threads
8400 (gnus-summary-select-article)
8401 (set-buffer gnus-article-buffer)
16409b0b 8402 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
8403 (when backward
8404 (forward-line -1))
8405 (while (not found)
8406 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
8407 (if (if backward
8408 (re-search-backward regexp nil t)
8409 (re-search-forward regexp nil t))
8410 ;; We found the regexp.
8411 (progn
8412 (setq found 'found)
8413 (beginning-of-line)
8414 (set-window-start
8415 (get-buffer-window (current-buffer))
8416 (point))
8417 (forward-line 1)
16409b0b
GM
8418 (set-window-point
8419 (get-buffer-window (current-buffer))
8420 (point))
eec82323
LMI
8421 (set-buffer sum)
8422 (setq point (point)))
8423 ;; We didn't find it, so we go to the next article.
8424 (set-buffer sum)
8425 (setq found 'not)
8426 (while (eq found 'not)
8427 (if (not (if backward (gnus-summary-find-prev)
8428 (gnus-summary-find-next)))
8429 ;; No more articles.
8430 (setq found t)
8431 ;; Select the next article and adjust point.
8432 (unless (gnus-summary-article-sparse-p
8433 (gnus-summary-article-number))
8434 (setq found nil)
8435 (gnus-summary-select-article)
8436 (set-buffer gnus-article-buffer)
8437 (widen)
8438 (goto-char (if backward (point-max) (point-min))))))))
8439 (gnus-message 7 ""))
8440 ;; Return whether we found the regexp.
8441 (when (eq found 'found)
8442 (goto-char point)
8443 (gnus-summary-show-thread)
8444 (gnus-summary-goto-subject gnus-current-article)
8445 (gnus-summary-position-point)
8446 t)))
8447
23f87bed
MB
8448(defun gnus-find-matching-articles (header regexp)
8449 "Return a list of all articles that match REGEXP on HEADER.
8450This search includes all articles in the current group that Gnus has
8451fetched headers for, whether they are displayed or not."
8452 (let ((articles nil)
8453 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
8454 (case-fold-search t))
8455 (dolist (header gnus-newsgroup-headers)
8456 (when (string-match regexp (funcall func header))
8457 (push (mail-header-number header) articles)))
8458 (nreverse articles)))
8459
eec82323 8460(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 8461 not-case-fold not-matching)
eec82323
LMI
8462 "Return a list of all articles that match REGEXP on HEADER.
8463The search stars on the current article and goes forwards unless
8464BACKWARD is non-nil. If BACKWARD is `all', do all articles.
8465If UNREAD is non-nil, only unread articles will
8466be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 8467in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
8468not match REGEXP on HEADER."
8469 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
8470 articles d func)
8471 (if (consp header)
8472 (if (eq (car header) 'extra)
8473 (setq func
8474 `(lambda (h)
8475 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
8476 "")))
8477 (error "%s is an invalid header" header))
8478 (unless (fboundp (intern (concat "mail-header-" header)))
8479 (error "%s is not a valid header" header))
8480 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
8481 (dolist (d (if (eq backward 'all)
8482 gnus-newsgroup-data
8483 (gnus-data-find-list
8484 (gnus-summary-article-number)
8485 (gnus-data-list backward))))
8486 (when (and (or (not unread) ; We want all articles...
8487 (gnus-data-unread-p d)) ; Or just unreads.
8488 (vectorp (gnus-data-header d)) ; It's not a pseudo.
8489 (if not-matching
a1506d29 8490 (not (string-match
47b63dfa
SZ
8491 regexp
8492 (funcall func (gnus-data-header d))))
8493 (string-match regexp
8494 (funcall func (gnus-data-header d)))))
8495 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
8496 (nreverse articles)))
8497
8498(defun gnus-summary-execute-command (header regexp command &optional backward)
8499 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
8500If HEADER is an empty string (or nil), the match is done on the entire
8501article. If BACKWARD (the prefix) is non-nil, search backward instead."
8502 (interactive
8503 (list (let ((completion-ignore-case t))
8504 (completing-read
8505 "Header name: "
23f87bed
MB
8506 (mapcar (lambda (header) (list (format "%s" header)))
8507 (append
8508 '("Number" "Subject" "From" "Lines" "Date"
8509 "Message-ID" "Xref" "References" "Body")
8510 gnus-extra-headers))
eec82323
LMI
8511 nil 'require-match))
8512 (read-string "Regexp: ")
8513 (read-key-sequence "Command: ")
8514 current-prefix-arg))
8515 (when (equal header "Body")
8516 (setq header ""))
eec82323
LMI
8517 ;; Hidden thread subtrees must be searched as well.
8518 (gnus-summary-show-all-threads)
8519 ;; We don't want to change current point nor window configuration.
8520 (save-excursion
8521 (save-window-excursion
23f87bed
MB
8522 (let (gnus-visual
8523 gnus-treat-strip-trailing-blank-lines
8524 gnus-treat-strip-leading-blank-lines
8525 gnus-treat-strip-multiple-blank-lines
8526 gnus-treat-hide-boring-headers
8527 gnus-treat-fold-newsgroups
8528 gnus-article-prepare-hook)
8529 (gnus-message 6 "Executing %s..." (key-description command))
8530 ;; We'd like to execute COMMAND interactively so as to give arguments.
8531 (gnus-execute header regexp
8532 `(call-interactively ',(key-binding command))
8533 backward)
8534 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
8535
8536(defun gnus-summary-beginning-of-article ()
8537 "Scroll the article back to the beginning."
8538 (interactive)
eec82323
LMI
8539 (gnus-summary-select-article)
8540 (gnus-configure-windows 'article)
8541 (gnus-eval-in-buffer-window gnus-article-buffer
8542 (widen)
8543 (goto-char (point-min))
23f87bed 8544 (when gnus-break-pages
eec82323
LMI
8545 (gnus-narrow-to-page))))
8546
8547(defun gnus-summary-end-of-article ()
8548 "Scroll to the end of the article."
8549 (interactive)
eec82323
LMI
8550 (gnus-summary-select-article)
8551 (gnus-configure-windows 'article)
8552 (gnus-eval-in-buffer-window gnus-article-buffer
8553 (widen)
8554 (goto-char (point-max))
8555 (recenter -3)
23f87bed
MB
8556 (when gnus-break-pages
8557 (when (re-search-backward page-delimiter nil t)
8558 (narrow-to-region (match-end 0) (point-max)))
eec82323
LMI
8559 (gnus-narrow-to-page))))
8560
23f87bed
MB
8561(defun gnus-summary-print-truncate-and-quote (string &optional len)
8562 "Truncate to LEN and quote all \"(\"'s in STRING."
8563 (gnus-replace-in-string (if (and len (> (length string) len))
8564 (substring string 0 len)
8565 string)
8566 "[()]" "\\\\\\&"))
8567
6748645f 8568(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
8569 "Generate and print a PostScript image of the process-marked (mail) articles.
8570
8571If used interactively, print the current article if none are
8572process-marked. With prefix arg, prompt the user for the name of the
8573file to save in.
6748645f 8574
23f87bed
MB
8575When used from Lisp, accept two optional args FILENAME and N. N means
8576to print the next N articles. If N is negative, print the N previous
8577articles. If N is nil and articles have been marked with the process
8578mark, print these instead.
eec82323 8579
16409b0b 8580If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
8581printer. If FILENAME is a string, save the PostScript image in a file with
8582that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 8583to save in."
676a7cc9 8584 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
8585 (dolist (article (gnus-summary-work-articles n))
8586 (gnus-summary-select-article nil nil 'pseudo article)
8587 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 8588 (gnus-print-buffer))
676a7cc9
SZ
8589 (gnus-summary-remove-process-mark article))
8590 (ps-despool filename))
eec82323 8591
23f87bed
MB
8592(defun gnus-print-buffer ()
8593 (let ((buffer (generate-new-buffer " *print*")))
8594 (unwind-protect
8595 (progn
8596 (copy-to-buffer buffer (point-min) (point-max))
8597 (set-buffer buffer)
8598 (gnus-remove-text-with-property 'gnus-decoration)
8599 (when (gnus-visual-p 'article-highlight 'highlight)
8600 ;; Copy-to-buffer doesn't copy overlay. So redo
8601 ;; highlight.
8602 (let ((gnus-article-buffer buffer))
8603 (gnus-article-highlight-citation t)
8604 (gnus-article-highlight-signature)
8605 (gnus-article-emphasize)
8606 (gnus-article-delete-invisible-text)))
8607 (let ((ps-left-header
8608 (list
8609 (concat "("
8610 (gnus-summary-print-truncate-and-quote
8611 (mail-header-subject gnus-current-headers)
8612 66) ")")
8613 (concat "("
8614 (gnus-summary-print-truncate-and-quote
8615 (mail-header-from gnus-current-headers)
8616 45) ")")))
8617 (ps-right-header
8618 (list
8619 "/pagenumberstring load"
8620 (concat "("
8621 (mail-header-date gnus-current-headers) ")"))))
8622 (gnus-run-hooks 'gnus-ps-print-hook)
8623 (save-excursion
8624 (if window-system
8625 (ps-spool-buffer-with-faces)
8626 (ps-spool-buffer)))))
8627 (kill-buffer buffer))))
8628
eec82323 8629(defun gnus-summary-show-article (&optional arg)
23f87bed 8630 "Force redisplaying of the current article.
16409b0b
GM
8631If ARG (the prefix) is a number, show the article with the charset
8632defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 8633input.
16409b0b 8634If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
8635without any article massaging functions being run. Normally, the key
8636strokes are `C-u g'."
eec82323 8637 (interactive "P")
16409b0b
GM
8638 (cond
8639 ((numberp arg)
23f87bed 8640 (gnus-summary-show-article t)
16409b0b
GM
8641 (let ((gnus-newsgroup-charset
8642 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
8643 (mm-read-coding-system
8644 "View as charset: " ;; actually it is coding system.
8645 (save-excursion
8646 (set-buffer gnus-article-buffer)
8647 (mm-detect-coding-region (point) (point-max))))))
16409b0b 8648 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
8649 (gnus-summary-select-article nil 'force)
8650 (let ((deps gnus-newsgroup-dependencies)
8651 head header lines)
8652 (save-excursion
8653 (set-buffer gnus-original-article-buffer)
8654 (save-restriction
8655 (message-narrow-to-head)
8656 (setq head (buffer-string))
8657 (goto-char (point-min))
8658 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
8659 (goto-char (point-max))
8660 (widen)
8661 (setq lines (1- (count-lines (point) (point-max))))))
8662 (with-temp-buffer
8663 (insert (format "211 %d Article retrieved.\n"
8664 (cdr gnus-article-current)))
8665 (insert head)
8666 (if lines (insert (format "Lines: %d\n" lines)))
8667 (insert ".\n")
8668 (let ((nntp-server-buffer (current-buffer)))
8669 (setq header (car (gnus-get-newsgroup-headers deps t))))))
8670 (gnus-data-set-header
8671 (gnus-data-find (cdr gnus-article-current))
8672 header)
8673 (gnus-summary-update-article-line
8674 (cdr gnus-article-current) header)
8675 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
8676 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
8677 ((not arg)
8678 ;; Select the article the normal way.
8679 (gnus-summary-select-article nil 'force))
8680 (t
8681 ;; We have to require this here to make sure that the following
8682 ;; dynamic binding isn't shadowed by autoloading.
8683 (require 'gnus-async)
8684 (require 'gnus-art)
eec82323
LMI
8685 ;; Bind the article treatment functions to nil.
8686 (let ((gnus-have-all-headers t)
eec82323 8687 gnus-article-prepare-hook
16409b0b
GM
8688 gnus-article-decode-hook
8689 gnus-display-mime-function
8690 gnus-break-pages)
8691 ;; Destroy any MIME parts.
8692 (when (gnus-buffer-live-p gnus-article-buffer)
8693 (save-excursion
8694 (set-buffer gnus-article-buffer)
8695 (mm-destroy-parts gnus-article-mime-handles)
8696 ;; Set it to nil for safety reason.
8697 (setq gnus-article-mime-handle-alist nil)
8698 (setq gnus-article-mime-handles nil)))
8699 (gnus-summary-select-article nil 'force))))
eec82323
LMI
8700 (gnus-summary-goto-subject gnus-current-article)
8701 (gnus-summary-position-point))
8702
23f87bed
MB
8703(defun gnus-summary-show-raw-article ()
8704 "Show the raw article without any article massaging functions being run."
8705 (interactive)
8706 (gnus-summary-show-article t))
8707
eec82323
LMI
8708(defun gnus-summary-verbose-headers (&optional arg)
8709 "Toggle permanent full header display.
8710If ARG is a positive number, turn header display on.
8711If ARG is a negative number, turn header display off."
8712 (interactive "P")
eec82323
LMI
8713 (setq gnus-show-all-headers
8714 (cond ((or (not (numberp arg))
8715 (zerop arg))
8716 (not gnus-show-all-headers))
8717 ((natnump arg)
8718 t)))
8719 (gnus-summary-show-article))
8720
8721(defun gnus-summary-toggle-header (&optional arg)
8722 "Show the headers if they are hidden, or hide them if they are shown.
8723If ARG is a positive number, show the entire header.
8724If ARG is a negative number, hide the unwanted header lines."
8725 (interactive "P")
23f87bed
MB
8726 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
8727 (get-buffer-window gnus-article-buffer t))))
8728 (with-current-buffer gnus-article-buffer
8729 (widen)
8730 (article-narrow-to-head)
16409b0b
GM
8731 (let* ((buffer-read-only nil)
8732 (inhibit-point-motion-hooks t)
23f87bed
MB
8733 (hidden (if (numberp arg)
8734 (>= arg 0)
8735 (gnus-article-hidden-text-p 'headers)))
8736 s e)
8737 (delete-region (point-min) (point-max))
667e0ba6
SM
8738 (with-current-buffer gnus-original-article-buffer
8739 (goto-char (setq s (point-min)))
23f87bed
MB
8740 (setq e (if (search-forward "\n\n" nil t)
8741 (1- (point))
8742 (point-max))))
667e0ba6 8743 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
8744 (run-hooks 'gnus-article-decode-hook)
8745 (if hidden
8746 (let ((gnus-treat-hide-headers nil)
8747 (gnus-treat-hide-boring-headers nil))
8748 (gnus-delete-wash-type 'headers)
8749 (gnus-treat-article 'head))
8750 (gnus-treat-article 'head))
8751 (widen)
8752 (if window
8753 (set-window-start window (goto-char (point-min))))
8754 (if gnus-break-pages
8755 (gnus-narrow-to-page)
8756 (when (gnus-visual-p 'page-marker)
8757 (let ((buffer-read-only nil))
8758 (gnus-remove-text-with-property 'gnus-prev)
8759 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 8760 (gnus-set-mode-line 'article)))))
eec82323
LMI
8761
8762(defun gnus-summary-show-all-headers ()
8763 "Make all header lines visible."
8764 (interactive)
23f87bed 8765 (gnus-summary-toggle-header 1))
eec82323 8766
eec82323
LMI
8767(defun gnus-summary-caesar-message (&optional arg)
8768 "Caesar rotate the current article by 13.
8769The numerical prefix specifies how many places to rotate each letter
8770forward."
8771 (interactive "P")
eec82323
LMI
8772 (gnus-summary-select-article)
8773 (let ((mail-header-separator ""))
8774 (gnus-eval-in-buffer-window gnus-article-buffer
8775 (save-restriction
8776 (widen)
8777 (let ((start (window-start))
8778 buffer-read-only)
8779 (message-caesar-buffer-body arg)
8780 (set-window-start (get-buffer-window (current-buffer)) start))))))
8781
23f87bed
MB
8782(autoload 'unmorse-region "morse"
8783 "Convert morse coded text in region to ordinary ASCII text."
8784 t)
8785
8786(defun gnus-summary-morse-message (&optional arg)
8787 "Morse decode the current article."
8788 (interactive "P")
8789 (gnus-summary-select-article)
8790 (let ((mail-header-separator ""))
8791 (gnus-eval-in-buffer-window gnus-article-buffer
8792 (save-excursion
8793 (save-restriction
8794 (widen)
8795 (let ((pos (window-start))
8796 buffer-read-only)
8797 (goto-char (point-min))
8798 (when (message-goto-body)
8799 (gnus-narrow-to-body))
8800 (goto-char (point-min))
8801