(mh-index-next-folder): Don't back up a line when going backwards
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
e84b4b86
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2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4;; 2005 Free Software Foundation, Inc.
eec82323 5
6748645f 6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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7;; Keywords: news
8
9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
13;; the Free Software Foundation; either version 2, or (at your option)
14;; any later version.
15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
22;; along with GNU Emacs; see the file COPYING. If not, write to the
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23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24;; Boston, MA 02110-1301, USA.
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25
26;;; Commentary:
27
28;;; Code:
29
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30(eval-when-compile
31 (require 'cl)
32 (defvar tool-bar-map))
5ab7173c 33
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34(require 'gnus)
35(require 'gnus-group)
36(require 'gnus-spec)
37(require 'gnus-range)
38(require 'gnus-int)
39(require 'gnus-undo)
6748645f 40(require 'gnus-util)
16409b0b 41(require 'mm-decode)
08c9a385 42(require 'nnoo)
23f87bed 43
6748645f 44(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 45(autoload 'gnus-cache-write-active "gnus-cache")
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46(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
47(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
531e5812 48(autoload 'gnus-pick-line-number "gnus-salt" nil t)
08c9a385 49(autoload 'mm-uu-dissect "mm-uu")
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50(autoload 'gnus-article-outlook-deuglify-article "deuglify"
51 "Deuglify broken Outlook (Express) articles and redisplay."
52 t)
53(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
54(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
55(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
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56
57(defcustom gnus-kill-summary-on-exit t
58 "*If non-nil, kill the summary buffer when you exit from it.
59If nil, the summary will become a \"*Dead Summary*\" buffer, and
60it will be killed sometime later."
61 :group 'gnus-summary-exit
62 :type 'boolean)
63
64(defcustom gnus-fetch-old-headers nil
65 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
66If an unread article in the group refers to an older, already read (or
67just marked as read) article, the old article will not normally be
1232b9cb 68displayed in the Summary buffer. If this variable is t, Gnus
eec82323 69will attempt to grab the headers to the old articles, and thereby
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70build complete threads. If it has the value `some', only enough
71headers to connect otherwise loose threads will be displayed. This
72variable can also be a number. In that case, no more than that number
73of old headers will be fetched. If it has the value `invisible', all
74old headers will be fetched, but none will be displayed.
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75
76The server has to support NOV for any of this to work."
77 :group 'gnus-thread
78 :type '(choice (const :tag "off" nil)
1232b9cb 79 (const :tag "on" t)
eec82323 80 (const some)
1232b9cb 81 (const invisible)
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82 number
83 (sexp :menu-tag "other" t)))
84
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85(defcustom gnus-refer-thread-limit 200
86 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
87If t, fetch all the available old headers."
88 :group 'gnus-thread
89 :type '(choice number
90 (sexp :menu-tag "other" t)))
91
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92(defcustom gnus-summary-make-false-root 'adopt
93 "*nil means that Gnus won't gather loose threads.
94If the root of a thread has expired or been read in a previous
95session, the information necessary to build a complete thread has been
96lost. Instead of having many small sub-threads from this original thread
97scattered all over the summary buffer, Gnus can gather them.
98
99If non-nil, Gnus will try to gather all loose sub-threads from an
100original thread into one large thread.
101
102If this variable is non-nil, it should be one of `none', `adopt',
103`dummy' or `empty'.
104
105If this variable is `none', Gnus will not make a false root, but just
106present the sub-threads after another.
107If this variable is `dummy', Gnus will create a dummy root that will
108have all the sub-threads as children.
109If this variable is `adopt', Gnus will make one of the \"children\"
110the parent and mark all the step-children as such.
111If this variable is `empty', the \"children\" are printed with empty
112subject fields. (Or rather, they will be printed with a string
113given by the `gnus-summary-same-subject' variable.)"
114 :group 'gnus-thread
115 :type '(choice (const :tag "off" nil)
116 (const none)
117 (const dummy)
118 (const adopt)
119 (const empty)))
120
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121(defcustom gnus-summary-make-false-root-always nil
122 "Always make a false dummy root."
bf247b6e 123 :version "22.1"
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124 :group 'gnus-thread
125 :type 'boolean)
126
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127(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
128 "*A regexp to match subjects to be excluded from loose thread gathering.
129As loose thread gathering is done on subjects only, that means that
130there can be many false gatherings performed. By rooting out certain
131common subjects, gathering might become saner."
132 :group 'gnus-thread
133 :type 'regexp)
134
135(defcustom gnus-summary-gather-subject-limit nil
136 "*Maximum length of subject comparisons when gathering loose threads.
137Use nil to compare full subjects. Setting this variable to a low
138number will help gather threads that have been corrupted by
139newsreaders chopping off subject lines, but it might also mean that
140unrelated articles that have subject that happen to begin with the
141same few characters will be incorrectly gathered.
142
143If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
144comparing subjects."
145 :group 'gnus-thread
146 :type '(choice (const :tag "off" nil)
147 (const fuzzy)
148 (sexp :menu-tag "on" t)))
149
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150(defcustom gnus-simplify-subject-functions nil
151 "List of functions taking a string argument that simplify subjects.
152The functions are applied recursively.
153
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154Useful functions to put in this list include:
155`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
156`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
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157 :group 'gnus-thread
158 :type '(repeat function))
159
eec82323 160(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 161 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
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162 :group 'gnus-thread
163 :type '(choice (const :tag "off" nil)
164 regexp))
165
166(defcustom gnus-build-sparse-threads nil
167 "*If non-nil, fill in the gaps in threads.
168If `some', only fill in the gaps that are needed to tie loose threads
169together. If `more', fill in all leaf nodes that Gnus can find. If
170non-nil and non-`some', fill in all gaps that Gnus manages to guess."
171 :group 'gnus-thread
172 :type '(choice (const :tag "off" nil)
173 (const some)
174 (const more)
175 (sexp :menu-tag "all" t)))
176
177(defcustom gnus-summary-thread-gathering-function
178 'gnus-gather-threads-by-subject
6748645f 179 "*Function used for gathering loose threads.
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180There are two pre-defined functions: `gnus-gather-threads-by-subject',
181which only takes Subjects into consideration; and
182`gnus-gather-threads-by-references', which compared the References
183headers of the articles to find matches."
184 :group 'gnus-thread
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185 :type '(radio (function-item gnus-gather-threads-by-subject)
186 (function-item gnus-gather-threads-by-references)
187 (function :tag "other")))
eec82323 188
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189(defcustom gnus-summary-same-subject ""
190 "*String indicating that the current article has the same subject as the previous.
191This variable will only be used if the value of
192`gnus-summary-make-false-root' is `empty'."
193 :group 'gnus-summary-format
194 :type 'string)
195
196(defcustom gnus-summary-goto-unread t
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197 "*If t, many commands will go to the next unread article.
198This applies to marking commands as well as other commands that
199\"naturally\" select the next article, like, for instance, `SPC' at
200the end of an article.
201
202If nil, the marking commands do NOT go to the next unread article
2642ac8f 203\(they go to the next article instead). If `never', commands that
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204usually go to the next unread article, will go to the next article,
205whether it is read or not."
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206 :group 'gnus-summary-marks
207 :link '(custom-manual "(gnus)Setting Marks")
208 :type '(choice (const :tag "off" nil)
209 (const never)
210 (sexp :menu-tag "on" t)))
211
212(defcustom gnus-summary-default-score 0
213 "*Default article score level.
214All scores generated by the score files will be added to this score.
215If this variable is nil, scoring will be disabled."
216 :group 'gnus-score-default
217 :type '(choice (const :tag "disable")
218 integer))
219
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220(defcustom gnus-summary-default-high-score 0
221 "*Default threshold for a high scored article.
222An article will be highlighted as high scored if its score is greater
223than this score."
bf247b6e 224 :version "22.1"
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225 :group 'gnus-score-default
226 :type 'integer)
227
228(defcustom gnus-summary-default-low-score 0
229 "*Default threshold for a low scored article.
230An article will be highlighted as low scored if its score is smaller
231than this score."
bf247b6e 232 :version "22.1"
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233 :group 'gnus-score-default
234 :type 'integer)
235
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236(defcustom gnus-summary-zcore-fuzz 0
237 "*Fuzziness factor for the zcore in the summary buffer.
238Articles with scores closer than this to `gnus-summary-default-score'
239will not be marked."
240 :group 'gnus-summary-format
241 :type 'integer)
242
243(defcustom gnus-simplify-subject-fuzzy-regexp nil
244 "*Strings to be removed when doing fuzzy matches.
245This can either be a regular expression or list of regular expressions
246that will be removed from subject strings if fuzzy subject
247simplification is selected."
248 :group 'gnus-thread
249 :type '(repeat regexp))
250
251(defcustom gnus-show-threads t
252 "*If non-nil, display threads in summary mode."
253 :group 'gnus-thread
254 :type 'boolean)
255
256(defcustom gnus-thread-hide-subtree nil
257 "*If non-nil, hide all threads initially.
23f87bed 258This can be a predicate specifier which says which threads to hide.
eec82323 259If threads are hidden, you have to run the command
4a2358e9 260`gnus-summary-show-thread' by hand or select an article."
eec82323 261 :group 'gnus-thread
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262 :type '(radio (sexp :format "Non-nil\n"
263 :match (lambda (widget value)
264 (not (or (consp value) (functionp value))))
265 :value t)
266 (const nil)
ad136a7c 267 (sexp :tag "Predicate specifier")))
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268
269(defcustom gnus-thread-hide-killed t
270 "*If non-nil, hide killed threads automatically."
271 :group 'gnus-thread
272 :type 'boolean)
273
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274(defcustom gnus-thread-ignore-subject t
275 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
276If nil, articles that have different subjects from their parents will
277start separate threads."
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278 :group 'gnus-thread
279 :type 'boolean)
280
281(defcustom gnus-thread-operation-ignore-subject t
282 "*If non-nil, subjects will be ignored when doing thread commands.
283This affects commands like `gnus-summary-kill-thread' and
284`gnus-summary-lower-thread'.
285
286If this variable is nil, articles in the same thread with different
287subjects will not be included in the operation in question. If this
288variable is `fuzzy', only articles that have subjects that are fuzzily
289equal will be included."
290 :group 'gnus-thread
291 :type '(choice (const :tag "off" nil)
292 (const fuzzy)
293 (sexp :tag "on" t)))
294
295(defcustom gnus-thread-indent-level 4
296 "*Number that says how much each sub-thread should be indented."
297 :group 'gnus-thread
298 :type 'integer)
299
300(defcustom gnus-auto-extend-newsgroup t
301 "*If non-nil, extend newsgroup forward and backward when requested."
302 :group 'gnus-summary-choose
303 :type 'boolean)
304
305(defcustom gnus-auto-select-first t
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306 "*If non-nil, select the article under point.
307Which article this is is controlled by the `gnus-auto-select-subject'
308variable.
309
310If you want to prevent automatic selection of articles in some
311newsgroups, set the variable to nil in `gnus-select-group-hook'."
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312 :group 'gnus-group-select
313 :type '(choice (const :tag "none" nil)
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314 (sexp :menu-tag "first" t)))
315
316(defcustom gnus-auto-select-subject 'unread
317 "*Says what subject to place under point when entering a group.
318
319This variable can either be the symbols `first' (place point on the
320first subject), `unread' (place point on the subject line of the first
321unread article), `best' (place point on the subject line of the
322higest-scored article), `unseen' (place point on the subject line of
99b5aab7 323the first unseen article), `unseen-or-unread' (place point on the subject
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324line of the first unseen article or, if all article have been seen, on the
325subject line of the first unread article), or a function to be called to
326place point on some subject line."
bf247b6e 327 :version "22.1"
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328 :group 'gnus-group-select
329 :type '(choice (const best)
330 (const unread)
331 (const first)
332 (const unseen)
333 (const unseen-or-unread)))
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334
335(defcustom gnus-auto-select-next t
336 "*If non-nil, offer to go to the next group from the end of the previous.
337If the value is t and the next newsgroup is empty, Gnus will exit
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338summary mode and go back to group mode. If the value is neither nil
339nor t, Gnus will select the following unread newsgroup. In
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340particular, if the value is the symbol `quietly', the next unread
341newsgroup will be selected without any confirmation, and if it is
342`almost-quietly', the next group will be selected without any
343confirmation if you are located on the last article in the group.
23f87bed 344Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
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345will go to the next group without confirmation."
346 :group 'gnus-summary-maneuvering
347 :type '(choice (const :tag "off" nil)
348 (const quietly)
349 (const almost-quietly)
350 (const slightly-quietly)
351 (sexp :menu-tag "on" t)))
352
353(defcustom gnus-auto-select-same nil
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354 "*If non-nil, select the next article with the same subject.
355If there are no more articles with the same subject, go to
356the first unread article."
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357 :group 'gnus-summary-maneuvering
358 :type 'boolean)
359
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360(defcustom gnus-auto-goto-ignores 'unfetched
361 "*Says how to handle unfetched articles when maneuvering.
362
363This variable can either be the symbols nil (maneuver to any
364article), `undownloaded' (maneuvering while unplugged ignores articles
365that have not been fetched), `always-undownloaded' (maneuvering always
366ignores articles that have not been fetched), `unfetched' (maneuvering
367ignores articles whose headers have not been fetched).
368
369NOTE: The list of unfetched articles will always be nil when plugged
370and, when unplugged, a subset of the undownloaded article list."
bf247b6e 371 :version "22.1"
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372 :group 'gnus-summary-maneuvering
373 :type '(choice (const :tag "None" nil)
374 (const :tag "Undownloaded when unplugged" undownloaded)
375 (const :tag "Undownloaded" always-undownloaded)
376 (const :tag "Unfetched" unfetched)))
377
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378(defcustom gnus-summary-check-current nil
379 "*If non-nil, consider the current article when moving.
380The \"unread\" movement commands will stay on the same line if the
381current article is unread."
382 :group 'gnus-summary-maneuvering
383 :type 'boolean)
384
385(defcustom gnus-auto-center-summary t
386 "*If non-nil, always center the current summary buffer.
387In particular, if `vertical' do only vertical recentering. If non-nil
388and non-`vertical', do both horizontal and vertical recentering."
389 :group 'gnus-summary-maneuvering
390 :type '(choice (const :tag "none" nil)
391 (const vertical)
16409b0b 392 (integer :tag "height")
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393 (sexp :menu-tag "both" t)))
394
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395(defvar gnus-auto-center-group t
396 "*If non-nil, always center the group buffer.")
397
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398(defcustom gnus-show-all-headers nil
399 "*If non-nil, don't hide any headers."
400 :group 'gnus-article-hiding
401 :group 'gnus-article-headers
402 :type 'boolean)
403
404(defcustom gnus-summary-ignore-duplicates nil
405 "*If non-nil, ignore articles with identical Message-ID headers."
406 :group 'gnus-summary
407 :type 'boolean)
6748645f 408
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409(defcustom gnus-single-article-buffer t
410 "*If non-nil, display all articles in the same buffer.
411If nil, each group will get its own article buffer."
412 :group 'gnus-article-various
413 :type 'boolean)
414
415(defcustom gnus-break-pages t
416 "*If non-nil, do page breaking on articles.
417The page delimiter is specified by the `gnus-page-delimiter'
418variable."
419 :group 'gnus-article-various
420 :type 'boolean)
421
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422(defcustom gnus-move-split-methods nil
423 "*Variable used to suggest where articles are to be moved to.
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424It uses the same syntax as the `gnus-split-methods' variable.
425However, whereas `gnus-split-methods' specifies file names as targets,
426this variable specifies group names."
eec82323 427 :group 'gnus-summary-mail
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428 :type '(repeat (choice (list :value (fun) function)
429 (cons :value ("" "") regexp (repeat string))
430 (sexp :value nil))))
eec82323 431
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432;; FIXME: Although the custom type is `character' for the following variables,
433;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
434
23f87bed 435(defcustom gnus-unread-mark ? ;Whitespace
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436 "*Mark used for unread articles."
437 :group 'gnus-summary-marks
438 :type 'character)
439
440(defcustom gnus-ticked-mark ?!
441 "*Mark used for ticked articles."
442 :group 'gnus-summary-marks
443 :type 'character)
444
445(defcustom gnus-dormant-mark ??
446 "*Mark used for dormant articles."
447 :group 'gnus-summary-marks
448 :type 'character)
449
450(defcustom gnus-del-mark ?r
451 "*Mark used for del'd articles."
452 :group 'gnus-summary-marks
453 :type 'character)
454
455(defcustom gnus-read-mark ?R
456 "*Mark used for read articles."
457 :group 'gnus-summary-marks
458 :type 'character)
459
460(defcustom gnus-expirable-mark ?E
461 "*Mark used for expirable articles."
462 :group 'gnus-summary-marks
463 :type 'character)
464
465(defcustom gnus-killed-mark ?K
466 "*Mark used for killed articles."
467 :group 'gnus-summary-marks
468 :type 'character)
469
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470(defcustom gnus-spam-mark ?$
471 "*Mark used for spam articles."
bf247b6e 472 :version "22.1"
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473 :group 'gnus-summary-marks
474 :type 'character)
475
eec82323 476(defcustom gnus-souped-mark ?F
23f87bed 477 "*Mark used for souped articles."
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478 :group 'gnus-summary-marks
479 :type 'character)
480
481(defcustom gnus-kill-file-mark ?X
482 "*Mark used for articles killed by kill files."
483 :group 'gnus-summary-marks
484 :type 'character)
485
486(defcustom gnus-low-score-mark ?Y
487 "*Mark used for articles with a low score."
488 :group 'gnus-summary-marks
489 :type 'character)
490
491(defcustom gnus-catchup-mark ?C
492 "*Mark used for articles that are caught up."
493 :group 'gnus-summary-marks
494 :type 'character)
495
496(defcustom gnus-replied-mark ?A
497 "*Mark used for articles that have been replied to."
498 :group 'gnus-summary-marks
499 :type 'character)
500
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501(defcustom gnus-forwarded-mark ?F
502 "*Mark used for articles that have been forwarded."
bf247b6e 503 :version "22.1"
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504 :group 'gnus-summary-marks
505 :type 'character)
506
507(defcustom gnus-recent-mark ?N
508 "*Mark used for articles that are recent."
bf247b6e 509 :version "22.1"
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510 :group 'gnus-summary-marks
511 :type 'character)
512
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513(defcustom gnus-cached-mark ?*
514 "*Mark used for articles that are in the cache."
515 :group 'gnus-summary-marks
516 :type 'character)
517
518(defcustom gnus-saved-mark ?S
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519 "*Mark used for articles that have been saved."
520 :group 'gnus-summary-marks
521 :type 'character)
522
523(defcustom gnus-unseen-mark ?.
524 "*Mark used for articles that haven't been seen."
bf247b6e 525 :version "22.1"
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526 :group 'gnus-summary-marks
527 :type 'character)
528
529(defcustom gnus-no-mark ? ;Whitespace
530 "*Mark used for articles that have no other secondary mark."
bf247b6e 531 :version "22.1"
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532 :group 'gnus-summary-marks
533 :type 'character)
534
535(defcustom gnus-ancient-mark ?O
536 "*Mark used for ancient articles."
537 :group 'gnus-summary-marks
538 :type 'character)
539
540(defcustom gnus-sparse-mark ?Q
541 "*Mark used for sparsely reffed articles."
542 :group 'gnus-summary-marks
543 :type 'character)
544
545(defcustom gnus-canceled-mark ?G
546 "*Mark used for canceled articles."
547 :group 'gnus-summary-marks
548 :type 'character)
549
550(defcustom gnus-duplicate-mark ?M
551 "*Mark used for duplicate articles."
552 :group 'gnus-summary-marks
553 :type 'character)
554
23f87bed 555(defcustom gnus-undownloaded-mark ?-
6748645f 556 "*Mark used for articles that weren't downloaded."
bf247b6e 557 :version "22.1"
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558 :group 'gnus-summary-marks
559 :type 'character)
560
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561(defcustom gnus-downloaded-mark ?+
562 "*Mark used for articles that were downloaded."
563 :group 'gnus-summary-marks
564 :type 'character)
565
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566(defcustom gnus-downloadable-mark ?%
567 "*Mark used for articles that are to be downloaded."
568 :group 'gnus-summary-marks
569 :type 'character)
570
571(defcustom gnus-unsendable-mark ?=
572 "*Mark used for articles that won't be sent."
573 :group 'gnus-summary-marks
574 :type 'character)
575
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576(defcustom gnus-score-over-mark ?+
577 "*Score mark used for articles with high scores."
578 :group 'gnus-summary-marks
579 :type 'character)
580
581(defcustom gnus-score-below-mark ?-
582 "*Score mark used for articles with low scores."
583 :group 'gnus-summary-marks
584 :type 'character)
585
23f87bed 586(defcustom gnus-empty-thread-mark ? ;Whitespace
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587 "*There is no thread under the article."
588 :group 'gnus-summary-marks
589 :type 'character)
590
591(defcustom gnus-not-empty-thread-mark ?=
592 "*There is a thread under the article."
593 :group 'gnus-summary-marks
594 :type 'character)
595
596(defcustom gnus-view-pseudo-asynchronously nil
597 "*If non-nil, Gnus will view pseudo-articles asynchronously."
598 :group 'gnus-extract-view
599 :type 'boolean)
600
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601(defcustom gnus-auto-expirable-marks
602 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
603 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
604 gnus-souped-mark gnus-duplicate-mark)
605 "*The list of marks converted into expiration if a group is auto-expirable."
58e39d05 606 :version "21.1"
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607 :group 'gnus-summary
608 :type '(repeat character))
609
610(defcustom gnus-inhibit-user-auto-expire t
611 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 612 :version "21.1"
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613 :group 'gnus-summary
614 :type 'boolean)
615
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616(defcustom gnus-view-pseudos nil
617 "*If `automatic', pseudo-articles will be viewed automatically.
618If `not-confirm', pseudos will be viewed automatically, and the user
619will not be asked to confirm the command."
620 :group 'gnus-extract-view
621 :type '(choice (const :tag "off" nil)
622 (const automatic)
623 (const not-confirm)))
624
625(defcustom gnus-view-pseudos-separately t
626 "*If non-nil, one pseudo-article will be created for each file to be viewed.
627If nil, all files that use the same viewing command will be given as a
628list of parameters to that command."
629 :group 'gnus-extract-view
630 :type 'boolean)
631
632(defcustom gnus-insert-pseudo-articles t
633 "*If non-nil, insert pseudo-articles when decoding articles."
634 :group 'gnus-extract-view
635 :type 'boolean)
636
637(defcustom gnus-summary-dummy-line-format
23f87bed 638 " %(: :%) %S\n"
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639 "*The format specification for the dummy roots in the summary buffer.
640It works along the same lines as a normal formatting string,
641with some simple extensions.
642
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643%S The subject
644
645General format specifiers can also be used.
646See `(gnus)Formatting Variables'."
647 :link '(custom-manual "(gnus)Formatting Variables")
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648 :group 'gnus-threading
649 :type 'string)
650
16409b0b 651(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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652 "*The format specification for the summary mode line.
653It works along the same lines as a normal formatting string,
654with some simple extensions:
655
656%G Group name
657%p Unprefixed group name
658%A Current article number
6748645f 659%z Current article score
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660%V Gnus version
661%U Number of unread articles in the group
662%e Number of unselected articles in the group
663%Z A string with unread/unselected article counts
664%g Shortish group name
665%S Subject of the current article
666%u User-defined spec
667%s Current score file name
668%d Number of dormant articles
669%r Number of articles that have been marked as read in this session
670%E Number of articles expunged by the score files"
671 :group 'gnus-summary-format
672 :type 'string)
673
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674(defcustom gnus-list-identifiers nil
675 "Regexp that matches list identifiers to be removed from subject.
676This can also be a list of regexps."
58e39d05 677 :version "21.1"
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678 :group 'gnus-summary-format
679 :group 'gnus-article-hiding
680 :type '(choice (const :tag "none" nil)
681 (regexp :value ".*")
682 (repeat :value (".*") regexp)))
683
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684(defcustom gnus-summary-mark-below 0
685 "*Mark all articles with a score below this variable as read.
686This variable is local to each summary buffer and usually set by the
687score file."
688 :group 'gnus-score-default
689 :type 'integer)
690
691(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
692 "*List of functions used for sorting articles in the summary buffer.
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693
694Each function takes two articles and returns non-nil if the first
695article should be sorted before the other. If you use more than one
696function, the primary sort function should be the last. You should
697probably always include `gnus-article-sort-by-number' in the list of
698sorting functions -- preferably first. Also note that sorting by date
699is often much slower than sorting by number, and the sorting order is
700very similar. (Sorting by date means sorting by the time the message
701was sent, sorting by number means sorting by arrival time.)
702
703Ready-made functions include `gnus-article-sort-by-number',
704`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
705`gnus-article-sort-by-date', `gnus-article-sort-by-random'
706and `gnus-article-sort-by-score'.
707
708When threading is turned on, the variable `gnus-thread-sort-functions'
709controls how articles are sorted."
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710 :group 'gnus-summary-sort
711 :type '(repeat (choice (function-item gnus-article-sort-by-number)
712 (function-item gnus-article-sort-by-author)
713 (function-item gnus-article-sort-by-subject)
714 (function-item gnus-article-sort-by-date)
715 (function-item gnus-article-sort-by-score)
23f87bed 716 (function-item gnus-article-sort-by-random)
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717 (function :tag "other"))))
718
719(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
720 "*List of functions used for sorting threads in the summary buffer.
721By default, threads are sorted by article number.
722
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723Each function takes two threads and returns non-nil if the first
724thread should be sorted before the other. If you use more than one
725function, the primary sort function should be the last. You should
726probably always include `gnus-thread-sort-by-number' in the list of
727sorting functions -- preferably first. Also note that sorting by date
728is often much slower than sorting by number, and the sorting order is
729very similar. (Sorting by date means sorting by the time the message
730was sent, sorting by number means sorting by arrival time.)
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731
732Ready-made functions include `gnus-thread-sort-by-number',
733`gnus-thread-sort-by-author', `gnus-thread-sort-by-subject',
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734`gnus-thread-sort-by-date', `gnus-thread-sort-by-score',
735`gnus-thread-sort-by-most-recent-number',
736`gnus-thread-sort-by-most-recent-date',
737`gnus-thread-sort-by-random', and
738`gnus-thread-sort-by-total-score' (see `gnus-thread-score-function').
739
740When threading is turned off, the variable
741`gnus-article-sort-functions' controls how articles are sorted."
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742 :group 'gnus-summary-sort
743 :type '(repeat (choice (function-item gnus-thread-sort-by-number)
744 (function-item gnus-thread-sort-by-author)
745 (function-item gnus-thread-sort-by-subject)
746 (function-item gnus-thread-sort-by-date)
747 (function-item gnus-thread-sort-by-score)
748 (function-item gnus-thread-sort-by-total-score)
23f87bed 749 (function-item gnus-thread-sort-by-random)
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750 (function :tag "other"))))
751
752(defcustom gnus-thread-score-function '+
753 "*Function used for calculating the total score of a thread.
754
755The function is called with the scores of the article and each
756subthread and should then return the score of the thread.
757
758Some functions you can use are `+', `max', or `min'."
759 :group 'gnus-summary-sort
760 :type 'function)
761
762(defcustom gnus-summary-expunge-below nil
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763 "All articles that have a score less than this variable will be expunged.
764This variable is local to the summary buffers."
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765 :group 'gnus-score-default
766 :type '(choice (const :tag "off" nil)
767 integer))
768
769(defcustom gnus-thread-expunge-below nil
770 "All threads that have a total score less than this variable will be expunged.
771See `gnus-thread-score-function' for en explanation of what a
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772\"thread score\" is.
773
774This variable is local to the summary buffers."
16409b0b 775 :group 'gnus-threading
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776 :group 'gnus-score-default
777 :type '(choice (const :tag "off" nil)
778 integer))
779
780(defcustom gnus-summary-mode-hook nil
781 "*A hook for Gnus summary mode.
782This hook is run before any variables are set in the summary buffer."
23f87bed 783 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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784 :group 'gnus-summary-various
785 :type 'hook)
786
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787;; Extracted from gnus-xmas-redefine in order to preserve user settings
788(when (featurep 'xemacs)
789 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
790 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
791 (add-hook 'gnus-summary-mode-hook
792 'gnus-xmas-switch-horizontal-scrollbar-off))
793
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794(defcustom gnus-summary-menu-hook nil
795 "*Hook run after the creation of the summary mode menu."
796 :group 'gnus-summary-visual
797 :type 'hook)
798
799(defcustom gnus-summary-exit-hook nil
800 "*A hook called on exit from the summary buffer.
801It will be called with point in the group buffer."
802 :group 'gnus-summary-exit
803 :type 'hook)
804
805(defcustom gnus-summary-prepare-hook nil
806 "*A hook called after the summary buffer has been generated.
807If you want to modify the summary buffer, you can use this hook."
808 :group 'gnus-summary-various
809 :type 'hook)
810
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811(defcustom gnus-summary-prepared-hook nil
812 "*A hook called as the last thing after the summary buffer has been generated."
813 :group 'gnus-summary-various
814 :type 'hook)
815
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816(defcustom gnus-summary-generate-hook nil
817 "*A hook run just before generating the summary buffer.
818This hook is commonly used to customize threading variables and the
819like."
820 :group 'gnus-summary-various
821 :type 'hook)
822
823(defcustom gnus-select-group-hook nil
824 "*A hook called when a newsgroup is selected.
825
826If you'd like to simplify subjects like the
827`gnus-summary-next-same-subject' command does, you can use the
828following hook:
829
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830 (add-hook gnus-select-group-hook
831 (lambda ()
832 (mapcar (lambda (header)
833 (mail-header-set-subject
834 header
835 (gnus-simplify-subject
836 (mail-header-subject header) 're-only)))
837 gnus-newsgroup-headers)))"
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838 :group 'gnus-group-select
839 :type 'hook)
840
841(defcustom gnus-select-article-hook nil
842 "*A hook called when an article is selected."
843 :group 'gnus-summary-choose
23f87bed 844 :options '(gnus-agent-fetch-selected-article)
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845 :type 'hook)
846
847(defcustom gnus-visual-mark-article-hook
848 (list 'gnus-highlight-selected-summary)
849 "*Hook run after selecting an article in the summary buffer.
850It is meant to be used for highlighting the article in some way. It
851is not run if `gnus-visual' is nil."
852 :group 'gnus-summary-visual
853 :type 'hook)
854
16409b0b 855(defcustom gnus-parse-headers-hook nil
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856 "*A hook called before parsing the headers."
857 :group 'gnus-various
858 :type 'hook)
859
860(defcustom gnus-exit-group-hook nil
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861 "*A hook called when exiting summary mode.
862This hook is not called from the non-updating exit commands like `Q'."
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863 :group 'gnus-various
864 :type 'hook)
865
866(defcustom gnus-summary-update-hook
867 (list 'gnus-summary-highlight-line)
868 "*A hook called when a summary line is changed.
869The hook will not be called if `gnus-visual' is nil.
870
871The default function `gnus-summary-highlight-line' will
872highlight the line according to the `gnus-summary-highlight'
873variable."
874 :group 'gnus-summary-visual
875 :type 'hook)
876
877(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
878 "*A hook called when an article is selected for the first time.
879The hook is intended to mark an article as read (or unread)
880automatically when it is selected."
881 :group 'gnus-summary-choose
882 :type 'hook)
883
884(defcustom gnus-group-no-more-groups-hook nil
885 "*A hook run when returning to group mode having no more (unread) groups."
886 :group 'gnus-group-select
887 :type 'hook)
888
889(defcustom gnus-ps-print-hook nil
890 "*A hook run before ps-printing something from Gnus."
891 :group 'gnus-summary
892 :type 'hook)
893
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894(defcustom gnus-summary-article-move-hook nil
895 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 896 :version "22.1"
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897 :group 'gnus-summary
898 :type 'hook)
899
900(defcustom gnus-summary-article-delete-hook nil
901 "*A hook called after an article is deleted."
bf247b6e 902 :version "22.1"
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903 :group 'gnus-summary
904 :type 'hook)
905
906(defcustom gnus-summary-article-expire-hook nil
907 "*A hook called after an article is expired."
bf247b6e 908 :version "22.1"
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909 :group 'gnus-summary
910 :type 'hook)
911
912(defcustom gnus-summary-display-arrow
913 (and (fboundp 'display-graphic-p)
914 (display-graphic-p))
915 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 916 :version "22.1"
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917 :group 'gnus-summary
918 :type 'boolean)
919
0f49874b 920(defcustom gnus-summary-selected-face 'gnus-summary-selected
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921 "Face used for highlighting the current article in the summary buffer."
922 :group 'gnus-summary-visual
923 :type 'face)
924
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925(defvar gnus-tmp-downloaded nil)
926
eec82323 927(defcustom gnus-summary-highlight
23f87bed 928 '(((eq mark gnus-canceled-mark)
0f49874b 929 . gnus-summary-cancelled)
23f87bed 930 ((and uncached (> score default-high))
0f49874b 931 . gnus-summary-high-undownloaded)
23f87bed 932 ((and uncached (< score default-low))
0f49874b 933 . gnus-summary-low-undownloaded)
23f87bed 934 (uncached
0f49874b 935 . gnus-summary-normal-undownloaded)
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936 ((and (> score default-high)
937 (or (eq mark gnus-dormant-mark)
938 (eq mark gnus-ticked-mark)))
0f49874b 939 . gnus-summary-high-ticked)
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940 ((and (< score default-low)
941 (or (eq mark gnus-dormant-mark)
942 (eq mark gnus-ticked-mark)))
0f49874b 943 . gnus-summary-low-ticked)
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944 ((or (eq mark gnus-dormant-mark)
945 (eq mark gnus-ticked-mark))
0f49874b 946 . gnus-summary-normal-ticked)
23f87bed 947 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 948 . gnus-summary-high-ancient)
23f87bed 949 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 950 . gnus-summary-low-ancient)
23f87bed 951 ((eq mark gnus-ancient-mark)
0f49874b 952 . gnus-summary-normal-ancient)
23f87bed 953 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 954 . gnus-summary-high-unread)
23f87bed 955 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 956 . gnus-summary-low-unread)
23f87bed 957 ((eq mark gnus-unread-mark)
0f49874b 958 . gnus-summary-normal-unread)
23f87bed 959 ((> score default-high)
0f49874b 960 . gnus-summary-high-read)
23f87bed 961 ((< score default-low)
0f49874b 962 . gnus-summary-low-read)
eec82323 963 (t
0f49874b 964 . gnus-summary-normal-read))
6748645f 965 "*Controls the highlighting of summary buffer lines.
eec82323 966
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967A list of (FORM . FACE) pairs. When deciding how a a particular
968summary line should be displayed, each form is evaluated. The content
969of the face field after the first true form is used. You can change
970how those summary lines are displayed, by editing the face field.
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971
972You can use the following variables in the FORM field.
973
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974score: The article's score
975default: The default article score.
976default-high: The default score for high scored articles.
977default-low: The default score for low scored articles.
978below: The score below which articles are automatically marked as read.
979mark: The article's mark.
980uncached: Non-nil if the article is uncached."
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981 :group 'gnus-summary-visual
982 :type '(repeat (cons (sexp :tag "Form" nil)
983 face)))
984
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985(defcustom gnus-alter-header-function nil
986 "Function called to allow alteration of article header structures.
987The function is called with one parameter, the article header vector,
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988which it may alter in any way."
989 :type '(choice (const :tag "None" nil)
990 function)
991 :group 'gnus-summary)
eec82323 992
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993(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
994 "Variable that says which function should be used to decode a string with encoded words.")
995
23f87bed 996(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 997 "*Extra headers to parse."
58e39d05 998 :version "21.1"
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999 :group 'gnus-summary
1000 :type '(repeat symbol))
1001
1002(defcustom gnus-ignored-from-addresses
7cd9f860
CY
1003 (and user-mail-address
1004 (not (string= user-mail-address ""))
1005 (regexp-quote user-mail-address))
16409b0b 1006 "*Regexp of From headers that may be suppressed in favor of To headers."
58e39d05 1007 :version "21.1"
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1008 :group 'gnus-summary
1009 :type 'regexp)
1010
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1011(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1012 "List of charsets that should be ignored.
1013When these charsets are used in the \"charset\" parameter, the
1014default charset will be used instead."
58e39d05 1015 :version "21.1"
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1016 :type '(repeat symbol)
1017 :group 'gnus-charset)
1018
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1019(gnus-define-group-parameter
1020 ignored-charsets
1021 :type list
1022 :function-document
1023 "Return the ignored charsets of GROUP."
1024 :variable gnus-group-ignored-charsets-alist
1025 :variable-default
1026 '(("alt\\.chinese\\.text" iso-8859-1))
1027 :variable-document
1028 "Alist of regexps (to match group names) and charsets that should be ignored.
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1029When these charsets are used in the \"charset\" parameter, the
1030default charset will be used instead."
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1031 :variable-group gnus-charset
1032 :variable-type '(repeat (cons (regexp :tag "Group")
1033 (repeat symbol)))
1034 :parameter-type '(choice :tag "Ignored charsets"
1035 :value nil
1036 (repeat (symbol)))
1037 :parameter-document "\
1038List of charsets that should be ignored.
1039
1040When these charsets are used in the \"charset\" parameter, the
1041default charset will be used instead.")
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1042
1043(defcustom gnus-group-highlight-words-alist nil
1044 "Alist of group regexps and highlight regexps.
1045This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1046 :version "21.1"
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1047 :type '(repeat (cons (regexp :tag "Group")
1048 (repeat (list (regexp :tag "Highlight regexp")
1049 (number :tag "Group for entire word" 0)
1050 (number :tag "Group for displayed part" 0)
1051 (symbol :tag "Face"
1052 gnus-emphasis-highlight-words)))))
1053 :group 'gnus-summary-visual)
1054
1055(defcustom gnus-summary-show-article-charset-alist
1056 nil
1057 "Alist of number and charset.
1058The article will be shown with the charset corresponding to the
1059numbered argument.
1060For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1061 :version "21.1"
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1062 :type '(repeat (cons (number :tag "Argument" 1)
1063 (symbol :tag "Charset")))
1064 :group 'gnus-charset)
1065
1066(defcustom gnus-preserve-marks t
1067 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1068 :version "21.1"
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1069 :type 'boolean
1070 :group 'gnus-summary-marks)
1071
1072(defcustom gnus-alter-articles-to-read-function nil
1073 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1074 :type '(choice (const nil) function)
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1075 :group 'gnus-summary)
1076
1077(defcustom gnus-orphan-score nil
1078 "*All orphans get this score added. Set in the score file."
1079 :group 'gnus-score-default
1080 :type '(choice (const nil)
1081 integer))
1082
8b93df01 1083(defcustom gnus-summary-save-parts-default-mime "image/.*"
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1084 "*A regexp to match MIME parts when saving multiple parts of a
1085message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1086This regexp will be used by default when prompting the user for which
1087type of files to save."
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1088 :group 'gnus-summary
1089 :type 'regexp)
1090
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1091(defcustom gnus-read-all-available-headers nil
1092 "Whether Gnus should parse all headers made available to it.
1093This is mostly relevant for slow back ends where the user may
1094wish to widen the summary buffer to include all headers
1095that were fetched. Say, for nnultimate groups."
bf247b6e 1096 :version "22.1"
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1097 :group 'gnus-summary
1098 :type '(choice boolean regexp))
1099
1100(defcustom gnus-summary-muttprint-program "muttprint"
1101 "Command (and optional arguments) used to run Muttprint."
bf247b6e 1102 :version "22.1"
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1103 :group 'gnus-summary
1104 :type 'string)
1105
1106(defcustom gnus-article-loose-mime nil
1107 "If non-nil, don't require MIME-Version header.
1108Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1109supply the MIME-Version header or deliberately strip it from the mail.
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1110Set it to non-nil, Gnus will treat some articles as MIME even if
1111the MIME-Version header is missed."
bf247b6e 1112 :version "22.1"
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1113 :type 'boolean
1114 :group 'gnus-article-mime)
1115
1116(defcustom gnus-article-emulate-mime t
1117 "If non-nil, use MIME emulation for uuencode and the like.
1118This means that Gnus will search message bodies for text that look
1119like uuencoded bits, yEncoded bits, and so on, and present that using
1120the normal Gnus MIME machinery."
bf247b6e 1121 :version "22.1"
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1122 :type 'boolean
1123 :group 'gnus-article-mime)
8b93df01 1124
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1125;;; Internal variables
1126
23f87bed 1127(defvar gnus-summary-display-cache nil)
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GM
1128(defvar gnus-article-mime-handles nil)
1129(defvar gnus-article-decoded-p nil)
23f87bed
MB
1130(defvar gnus-article-charset nil)
1131(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1132(defvar gnus-scores-exclude-files nil)
1133(defvar gnus-page-broken nil)
1134
1135(defvar gnus-original-article nil)
1136(defvar gnus-article-internal-prepare-hook nil)
1137(defvar gnus-newsgroup-process-stack nil)
1138
1139(defvar gnus-thread-indent-array nil)
1140(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1141(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1142 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1143
8b93df01 1144(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1145(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1146
eec82323
LMI
1147;; Avoid highlighting in kill files.
1148(defvar gnus-summary-inhibit-highlight nil)
1149(defvar gnus-newsgroup-selected-overlay nil)
1150(defvar gnus-inhibit-limiting nil)
1151(defvar gnus-newsgroup-adaptive-score-file nil)
1152(defvar gnus-current-score-file nil)
1153(defvar gnus-current-move-group nil)
1154(defvar gnus-current-copy-group nil)
1155(defvar gnus-current-crosspost-group nil)
23f87bed 1156(defvar gnus-newsgroup-display nil)
eec82323
LMI
1157
1158(defvar gnus-newsgroup-dependencies nil)
1159(defvar gnus-newsgroup-adaptive nil)
1160(defvar gnus-summary-display-article-function nil)
1161(defvar gnus-summary-highlight-line-function nil
1162 "Function called after highlighting a summary line.")
1163
1164(defvar gnus-summary-line-format-alist
1165 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1166 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1167 (?s gnus-tmp-subject-or-nil ?s)
1168 (?n gnus-tmp-name ?s)
1169 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1170 ?s)
1171 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1172 gnus-tmp-from) ?s)
1173 (?F gnus-tmp-from ?s)
1174 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1175 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1176 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1177 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1178 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1179 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1180 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1181 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1182 (?L gnus-tmp-lines ?s)
1183 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1184 (?I gnus-tmp-indentation ?s)
1185 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1186 (?R gnus-tmp-replied ?c)
1187 (?\[ gnus-tmp-opening-bracket ?c)
1188 (?\] gnus-tmp-closing-bracket ?c)
1189 (?\> (make-string gnus-tmp-level ? ) ?s)
1190 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1191 (?i gnus-tmp-score ?d)
1192 (?z gnus-tmp-score-char ?c)
1193 (?l (bbb-grouplens-score gnus-tmp-header) ?s)
1194 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1195 (?U gnus-tmp-unread ?c)
23f87bed
MB
1196 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1197 ?s)
eec82323
LMI
1198 (?t (gnus-summary-number-of-articles-in-thread
1199 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1200 ?d)
1201 (?e (gnus-summary-number-of-articles-in-thread
1202 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1203 ?c)
1204 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1205 (?P (gnus-pick-line-number) ?d)
1206 (?B gnus-tmp-thread-tree-header-string ?s)
1207 (user-date (gnus-user-date
1208 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1209 "An alist of format specifications that can appear in summary lines.
1210These are paired with what variables they correspond with, along with
1211the type of the variable (string, integer, character, etc).")
eec82323
LMI
1212
1213(defvar gnus-summary-dummy-line-format-alist
1214 `((?S gnus-tmp-subject ?s)
1215 (?N gnus-tmp-number ?d)
1216 (?u gnus-tmp-user-defined ?s)))
1217
1218(defvar gnus-summary-mode-line-format-alist
1219 `((?G gnus-tmp-group-name ?s)
1220 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1221 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1222 (?A gnus-tmp-article-number ?d)
1223 (?Z gnus-tmp-unread-and-unselected ?s)
1224 (?V gnus-version ?s)
1225 (?U gnus-tmp-unread-and-unticked ?d)
1226 (?S gnus-tmp-subject ?s)
1227 (?e gnus-tmp-unselected ?d)
1228 (?u gnus-tmp-user-defined ?s)
1229 (?d (length gnus-newsgroup-dormant) ?d)
1230 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1231 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1232 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1233 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1234 (?E gnus-newsgroup-expunged-tally ?d)
1235 (?s (gnus-current-score-file-nondirectory) ?s)))
1236
1237(defvar gnus-last-search-regexp nil
1238 "Default regexp for article search command.")
1239
1240(defvar gnus-last-shell-command nil
1241 "Default shell command on article.")
1242
23f87bed
MB
1243(defvar gnus-newsgroup-agentized nil
1244 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1245(defvar gnus-newsgroup-begin nil)
1246(defvar gnus-newsgroup-end nil)
1247(defvar gnus-newsgroup-last-rmail nil)
1248(defvar gnus-newsgroup-last-mail nil)
1249(defvar gnus-newsgroup-last-folder nil)
1250(defvar gnus-newsgroup-last-file nil)
1251(defvar gnus-newsgroup-auto-expire nil)
1252(defvar gnus-newsgroup-active nil)
1253
1254(defvar gnus-newsgroup-data nil)
1255(defvar gnus-newsgroup-data-reverse nil)
1256(defvar gnus-newsgroup-limit nil)
1257(defvar gnus-newsgroup-limits nil)
23f87bed 1258(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1259
1260(defvar gnus-newsgroup-unreads nil
23f87bed 1261 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1262
1263(defvar gnus-newsgroup-unselected nil
23f87bed 1264 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
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1265
1266(defvar gnus-newsgroup-reads nil
1267 "Alist of read articles and article marks in the current newsgroup.")
1268
1269(defvar gnus-newsgroup-expunged-tally nil)
1270
1271(defvar gnus-newsgroup-marked nil
23f87bed
MB
1272 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1273
1274(defvar gnus-newsgroup-spam-marked nil
1275 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1276
1277(defvar gnus-newsgroup-killed nil
1278 "List of ranges of articles that have been through the scoring process.")
1279
1280(defvar gnus-newsgroup-cached nil
23f87bed 1281 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1282
1283(defvar gnus-newsgroup-saved nil
1284 "List of articles that have been saved.")
1285
1286(defvar gnus-newsgroup-kill-headers nil)
1287
1288(defvar gnus-newsgroup-replied nil
1289 "List of articles that have been replied to in the current newsgroup.")
1290
23f87bed
MB
1291(defvar gnus-newsgroup-forwarded nil
1292 "List of articles that have been forwarded in the current newsgroup.")
1293
1294(defvar gnus-newsgroup-recent nil
1295 "List of articles that have are recent in the current newsgroup.")
1296
eec82323 1297(defvar gnus-newsgroup-expirable nil
23f87bed 1298 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1299
1300(defvar gnus-newsgroup-processable nil
1301 "List of articles in the current newsgroup that can be processed.")
1302
6748645f 1303(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1304 "Sorted list of articles in the current newsgroup that can be processed.")
1305
1306(defvar gnus-newsgroup-unfetched nil
1307 "Sorted list of articles in the current newsgroup whose headers have
1308not been fetched into the agent.
1309
1310This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1311
1312(defvar gnus-newsgroup-undownloaded nil
23f87bed 1313 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1314
1315(defvar gnus-newsgroup-unsendable nil
1316 "List of articles in the current newsgroup that won't be sent.")
1317
eec82323
LMI
1318(defvar gnus-newsgroup-bookmarks nil
1319 "List of articles in the current newsgroup that have bookmarks.")
1320
1321(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1322 "Sorted list of dormant articles in the current newsgroup.")
1323
1324(defvar gnus-newsgroup-unseen nil
1325 "List of unseen articles in the current newsgroup.")
1326
1327(defvar gnus-newsgroup-seen nil
1328 "Range of seen articles in the current newsgroup.")
1329
1330(defvar gnus-newsgroup-articles nil
1331 "List of articles in the current newsgroup.")
eec82323
LMI
1332
1333(defvar gnus-newsgroup-scored nil
1334 "List of scored articles in the current newsgroup.")
1335
1336(defvar gnus-newsgroup-headers nil
1337 "List of article headers in the current newsgroup.")
1338
1339(defvar gnus-newsgroup-threads nil)
1340
1341(defvar gnus-newsgroup-prepared nil
1342 "Whether the current group has been prepared properly.")
1343
1344(defvar gnus-newsgroup-ancient nil
1345 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1346
1347(defvar gnus-newsgroup-sparse nil)
1348
1349(defvar gnus-current-article nil)
1350(defvar gnus-article-current nil)
1351(defvar gnus-current-headers nil)
1352(defvar gnus-have-all-headers nil)
1353(defvar gnus-last-article nil)
1354(defvar gnus-newsgroup-history nil)
16409b0b
GM
1355(defvar gnus-newsgroup-charset nil)
1356(defvar gnus-newsgroup-ephemeral-charset nil)
1357(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1358
23f87bed
MB
1359(defvar gnus-article-before-search nil)
1360
1361(defvar gnus-summary-local-variables
eec82323
LMI
1362 '(gnus-newsgroup-name
1363 gnus-newsgroup-begin gnus-newsgroup-end
1364 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1365 gnus-newsgroup-last-folder gnus-newsgroup-last-file
1366 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1367 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1368 gnus-newsgroup-spam-marked
eec82323 1369 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1370 gnus-newsgroup-replied gnus-newsgroup-forwarded
1371 gnus-newsgroup-recent
1372 gnus-newsgroup-expirable
eec82323 1373 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1374 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1375 gnus-newsgroup-unfetched
1376 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1377 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1378 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1379 gnus-newsgroup-headers gnus-newsgroup-threads
1380 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1381 gnus-current-article gnus-current-headers gnus-have-all-headers
1382 gnus-last-article gnus-article-internal-prepare-hook
1383 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1384 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1385 gnus-thread-expunge-below
16409b0b
GM
1386 gnus-score-alist gnus-current-score-file
1387 (gnus-summary-expunge-below . global)
eec82323 1388 (gnus-summary-mark-below . global)
16409b0b 1389 (gnus-orphan-score . global)
eec82323
LMI
1390 gnus-newsgroup-active gnus-scores-exclude-files
1391 gnus-newsgroup-history gnus-newsgroup-ancient
1392 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1393 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1394 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1395 (gnus-newsgroup-expunged-tally . 0)
1396 gnus-cache-removable-articles gnus-newsgroup-cached
1397 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1398 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1399 gnus-newsgroup-charset gnus-newsgroup-display
1400 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1401 "Variables that are buffer-local to the summary buffers.")
1402
23f87bed
MB
1403(defvar gnus-newsgroup-variables nil
1404 "A list of variables that have separate values in different newsgroups.
1405A list of newsgroup (summary buffer) local variables, or cons of
1406variables and their default expressions to be evalled (when the default
1407values are not nil), that should be made global while the summary buffer
1408is active.
1409
1410Note: The default expressions will be evaluated (using function `eval')
1411before assignment to the local variable rather than just assigned to it.
1412If the default expression is the symbol `global', that symbol will not
1413be evaluated but the global value of the local variable will be used
1414instead.
1415
1416These variables can be used to set variables in the group parameters
1417while still allowing them to affect operations done in other buffers.
1418For example:
1419
1420\(setq gnus-newsgroup-variables
1421 '(message-use-followup-to
1422 (gnus-visible-headers .
1423 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1424")
1425
eec82323 1426;; Byte-compiler warning.
23f87bed
MB
1427(eval-when-compile
1428 ;; Bind features so that require will believe that gnus-sum has
1429 ;; already been loaded (avoids infinite recursion)
1430 (let ((features (cons 'gnus-sum features)))
1431 ;; Several of the declarations in gnus-sum are needed to load the
1432 ;; following files. Right now, these definitions have been
1433 ;; compiled but not defined (evaluated). We could either do a
1434 ;; eval-and-compile about all of the declarations or evaluate the
1435 ;; source file.
1436 (if (boundp 'gnus-newsgroup-variables)
1437 nil
1438 (load "gnus-sum.el" t t t))
1439 (require 'gnus)
1440 (require 'gnus-agent)
1441 (require 'gnus-art)))
eec82323 1442
16409b0b
GM
1443;; MIME stuff.
1444
1445(defvar gnus-decode-encoded-word-methods
1446 '(mail-decode-encoded-word-string)
1447 "List of methods used to decode encoded words.
1448
23f87bed
MB
1449This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1450is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1451\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1452whose names match REGEXP.
1453
1454For example:
23f87bed 1455\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1456 mail-decode-encoded-word-string
1457 (\"chinese\" . rfc1843-decode-string))")
1458
1459(defvar gnus-decode-encoded-word-methods-cache nil)
1460
1461(defun gnus-multi-decode-encoded-word-string (string)
1462 "Apply the functions from `gnus-encoded-word-methods' that match."
1463 (unless (and gnus-decode-encoded-word-methods-cache
1464 (eq gnus-newsgroup-name
1465 (car gnus-decode-encoded-word-methods-cache)))
1466 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
1467 (mapcar (lambda (x)
1468 (if (symbolp x)
1469 (nconc gnus-decode-encoded-word-methods-cache (list x))
1470 (if (and gnus-newsgroup-name
1471 (string-match (car x) gnus-newsgroup-name))
1472 (nconc gnus-decode-encoded-word-methods-cache
1473 (list (cdr x))))))
23f87bed 1474 gnus-decode-encoded-word-methods))
16409b0b
GM
1475 (let ((xlist gnus-decode-encoded-word-methods-cache))
1476 (pop xlist)
1477 (while xlist
1478 (setq string (funcall (pop xlist) string))))
1479 string)
1480
eec82323
LMI
1481;; Subject simplification.
1482
6748645f 1483(defun gnus-simplify-whitespace (str)
16409b0b 1484 "Remove excessive whitespace from STR."
23f87bed
MB
1485 ;; Multiple spaces.
1486 (while (string-match "[ \t][ \t]+" str)
1487 (setq str (concat (substring str 0 (match-beginning 0))
1488 " "
1489 (substring str (match-end 0)))))
1490 ;; Leading spaces.
1491 (when (string-match "^[ \t]+" str)
1492 (setq str (substring str (match-end 0))))
1493 ;; Trailing spaces.
1494 (when (string-match "[ \t]+$" str)
1495 (setq str (substring str 0 (match-beginning 0))))
1496 str)
1497
1498(defun gnus-simplify-all-whitespace (str)
1499 "Remove all whitespace from STR."
1500 (while (string-match "[ \t\n]+" str)
1501 (setq str (replace-match "" nil nil str)))
1502 str)
6748645f 1503
eec82323
LMI
1504(defsubst gnus-simplify-subject-re (subject)
1505 "Remove \"Re:\" from subject lines."
23f87bed 1506 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1507 (substring subject (match-end 0))
1508 subject))
1509
1510(defun gnus-simplify-subject (subject &optional re-only)
1511 "Remove `Re:' and words in parentheses.
1512If RE-ONLY is non-nil, strip leading `Re:'s only."
1513 (let ((case-fold-search t)) ;Ignore case.
1514 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1515 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1516 (setq subject (substring subject (match-end 0))))
1517 ;; Remove uninteresting prefixes.
1518 (when (and (not re-only)
1519 gnus-simplify-ignored-prefixes
1520 (string-match gnus-simplify-ignored-prefixes subject))
1521 (setq subject (substring subject (match-end 0))))
1522 ;; Remove words in parentheses from end.
1523 (unless re-only
1524 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1525 (setq subject (substring subject 0 (match-beginning 0)))))
1526 ;; Return subject string.
1527 subject))
1528
1529;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1530;; all whitespace.
1531(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1532 (goto-char (point-min))
1533 (while (re-search-forward regexp nil t)
16409b0b 1534 (replace-match (or newtext ""))))
eec82323
LMI
1535
1536(defun gnus-simplify-buffer-fuzzy ()
1537 "Simplify string in the buffer fuzzily.
1538The string in the accessible portion of the current buffer is simplified.
1539It is assumed to be a single-line subject.
1540Whitespace is generally cleaned up, and miscellaneous leading/trailing
1541matter is removed. Additional things can be deleted by setting
16409b0b 1542`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1543 (let ((case-fold-search t)
1544 (modified-tick))
1545 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1546
1547 (while (not (eq modified-tick (buffer-modified-tick)))
1548 (setq modified-tick (buffer-modified-tick))
1549 (cond
1550 ((listp gnus-simplify-subject-fuzzy-regexp)
1551 (mapcar 'gnus-simplify-buffer-fuzzy-step
1552 gnus-simplify-subject-fuzzy-regexp))
1553 (gnus-simplify-subject-fuzzy-regexp
1554 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1555 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1556 (gnus-simplify-buffer-fuzzy-step
1557 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1558 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1559
1560 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1561 (gnus-simplify-buffer-fuzzy-step " +" " ")
1562 (gnus-simplify-buffer-fuzzy-step " $")
1563 (gnus-simplify-buffer-fuzzy-step "^ +")))
1564
1565(defun gnus-simplify-subject-fuzzy (subject)
1566 "Simplify a subject string fuzzily.
6748645f 1567See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1568 (save-excursion
1569 (gnus-set-work-buffer)
1570 (let ((case-fold-search t))
6748645f
LMI
1571 ;; Remove uninteresting prefixes.
1572 (when (and gnus-simplify-ignored-prefixes
1573 (string-match gnus-simplify-ignored-prefixes subject))
1574 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1575 (insert subject)
1576 (inline (gnus-simplify-buffer-fuzzy))
1577 (buffer-string))))
1578
1579(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1580 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1581 (cond
6748645f
LMI
1582 (gnus-simplify-subject-functions
1583 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1584 ((null gnus-summary-gather-subject-limit)
1585 (gnus-simplify-subject-re subject))
1586 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1587 (gnus-simplify-subject-fuzzy subject))
1588 ((numberp gnus-summary-gather-subject-limit)
1589 (gnus-limit-string (gnus-simplify-subject-re subject)
1590 gnus-summary-gather-subject-limit))
1591 (t
1592 subject)))
1593
1594(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1595 "Check whether two subjects are equal.
23f87bed 1596If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1597simplified."
eec82323
LMI
1598 (cond
1599 ((null simple-first)
1600 (equal (gnus-simplify-subject-fully s1)
1601 (gnus-simplify-subject-fully s2)))
1602 (t
1603 (equal s1
1604 (gnus-simplify-subject-fully s2)))))
1605
1606(defun gnus-summary-bubble-group ()
1607 "Increase the score of the current group.
1608This is a handy function to add to `gnus-summary-exit-hook' to
1609increase the score of each group you read."
1610 (gnus-group-add-score gnus-newsgroup-name))
1611
1612\f
1613;;;
1614;;; Gnus summary mode
1615;;;
1616
1617(put 'gnus-summary-mode 'mode-class 'special)
1618
1653df0f
SZ
1619(defvar gnus-article-commands-menu)
1620
23f87bed
MB
1621;; Non-orthogonal keys
1622
1623(gnus-define-keys gnus-summary-mode-map
1624 " " gnus-summary-next-page
1625 "\177" gnus-summary-prev-page
1626 [delete] gnus-summary-prev-page
1627 [backspace] gnus-summary-prev-page
1628 "\r" gnus-summary-scroll-up
1629 "\M-\r" gnus-summary-scroll-down
1630 "n" gnus-summary-next-unread-article
1631 "p" gnus-summary-prev-unread-article
1632 "N" gnus-summary-next-article
1633 "P" gnus-summary-prev-article
1634 "\M-\C-n" gnus-summary-next-same-subject
1635 "\M-\C-p" gnus-summary-prev-same-subject
1636 "\M-n" gnus-summary-next-unread-subject
1637 "\M-p" gnus-summary-prev-unread-subject
1638 "." gnus-summary-first-unread-article
1639 "," gnus-summary-best-unread-article
1640 "\M-s" gnus-summary-search-article-forward
1641 "\M-r" gnus-summary-search-article-backward
1642 "<" gnus-summary-beginning-of-article
1643 ">" gnus-summary-end-of-article
1644 "j" gnus-summary-goto-article
1645 "^" gnus-summary-refer-parent-article
1646 "\M-^" gnus-summary-refer-article
1647 "u" gnus-summary-tick-article-forward
1648 "!" gnus-summary-tick-article-forward
1649 "U" gnus-summary-tick-article-backward
1650 "d" gnus-summary-mark-as-read-forward
1651 "D" gnus-summary-mark-as-read-backward
1652 "E" gnus-summary-mark-as-expirable
1653 "\M-u" gnus-summary-clear-mark-forward
1654 "\M-U" gnus-summary-clear-mark-backward
1655 "k" gnus-summary-kill-same-subject-and-select
1656 "\C-k" gnus-summary-kill-same-subject
1657 "\M-\C-k" gnus-summary-kill-thread
1658 "\M-\C-l" gnus-summary-lower-thread
1659 "e" gnus-summary-edit-article
1660 "#" gnus-summary-mark-as-processable
1661 "\M-#" gnus-summary-unmark-as-processable
1662 "\M-\C-t" gnus-summary-toggle-threads
1663 "\M-\C-s" gnus-summary-show-thread
1664 "\M-\C-h" gnus-summary-hide-thread
1665 "\M-\C-f" gnus-summary-next-thread
1666 "\M-\C-b" gnus-summary-prev-thread
1667 [(meta down)] gnus-summary-next-thread
1668 [(meta up)] gnus-summary-prev-thread
1669 "\M-\C-u" gnus-summary-up-thread
1670 "\M-\C-d" gnus-summary-down-thread
1671 "&" gnus-summary-execute-command
1672 "c" gnus-summary-catchup-and-exit
1673 "\C-w" gnus-summary-mark-region-as-read
1674 "\C-t" gnus-summary-toggle-truncation
1675 "?" gnus-summary-mark-as-dormant
1676 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1677 "\C-c\C-s\C-n" gnus-summary-sort-by-number
1678 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1679 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1680 "\C-c\C-s\C-a" gnus-summary-sort-by-author
1681 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1682 "\C-c\C-s\C-d" gnus-summary-sort-by-date
1683 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1684 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1685 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1686 "=" gnus-summary-expand-window
1687 "\C-x\C-s" gnus-summary-reselect-current-group
1688 "\M-g" gnus-summary-rescan-group
1689 "w" gnus-summary-stop-page-breaking
1690 "\C-c\C-r" gnus-summary-caesar-message
1691 "f" gnus-summary-followup
1692 "F" gnus-summary-followup-with-original
1693 "C" gnus-summary-cancel-article
1694 "r" gnus-summary-reply
1695 "R" gnus-summary-reply-with-original
1696 "\C-c\C-f" gnus-summary-mail-forward
1697 "o" gnus-summary-save-article
1698 "\C-o" gnus-summary-save-article-mail
1699 "|" gnus-summary-pipe-output
1700 "\M-k" gnus-summary-edit-local-kill
1701 "\M-K" gnus-summary-edit-global-kill
1702 ;; "V" gnus-version
1703 "\C-c\C-d" gnus-summary-describe-group
1704 "q" gnus-summary-exit
1705 "Q" gnus-summary-exit-no-update
1706 "\C-c\C-i" gnus-info-find-node
1707 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1708 [follow-link] mouse-face
23f87bed
MB
1709 "m" gnus-summary-mail-other-window
1710 "a" gnus-summary-post-news
1711 "i" gnus-summary-news-other-window
1712 "x" gnus-summary-limit-to-unread
1713 "s" gnus-summary-isearch-article
1714 "t" gnus-summary-toggle-header
1715 "g" gnus-summary-show-article
1716 "l" gnus-summary-goto-last-article
1717 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1718 "\C-d" gnus-summary-enter-digest-group
1719 "\M-\C-d" gnus-summary-read-document
1720 "\M-\C-e" gnus-summary-edit-parameters
1721 "\M-\C-a" gnus-summary-customize-parameters
1722 "\C-c\C-b" gnus-bug
1723 "*" gnus-cache-enter-article
1724 "\M-*" gnus-cache-remove-article
1725 "\M-&" gnus-summary-universal-argument
1726 "\C-l" gnus-recenter
1727 "I" gnus-summary-increase-score
1728 "L" gnus-summary-lower-score
1729 "\M-i" gnus-symbolic-argument
1730 "h" gnus-summary-select-article-buffer
1731
1732 "b" gnus-article-view-part
1733 "\M-t" gnus-summary-toggle-display-buttonized
1734
1735 "V" gnus-summary-score-map
1736 "X" gnus-uu-extract-map
1737 "S" gnus-summary-send-map)
1738
1739;; Sort of orthogonal keymap
1740(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1741 "t" gnus-summary-tick-article-forward
1742 "!" gnus-summary-tick-article-forward
1743 "d" gnus-summary-mark-as-read-forward
1744 "r" gnus-summary-mark-as-read-forward
1745 "c" gnus-summary-clear-mark-forward
1746 " " gnus-summary-clear-mark-forward
1747 "e" gnus-summary-mark-as-expirable
1748 "x" gnus-summary-mark-as-expirable
1749 "?" gnus-summary-mark-as-dormant
1750 "b" gnus-summary-set-bookmark
1751 "B" gnus-summary-remove-bookmark
1752 "#" gnus-summary-mark-as-processable
1753 "\M-#" gnus-summary-unmark-as-processable
1754 "S" gnus-summary-limit-include-expunged
1755 "C" gnus-summary-catchup
1756 "H" gnus-summary-catchup-to-here
1757 "h" gnus-summary-catchup-from-here
1758 "\C-c" gnus-summary-catchup-all
1759 "k" gnus-summary-kill-same-subject-and-select
1760 "K" gnus-summary-kill-same-subject
1761 "P" gnus-uu-mark-map)
1762
1763(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1764 "c" gnus-summary-clear-above
1765 "u" gnus-summary-tick-above
1766 "m" gnus-summary-mark-above
1767 "k" gnus-summary-kill-below)
1768
1769(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1770 "/" gnus-summary-limit-to-subject
1771 "n" gnus-summary-limit-to-articles
1772 "w" gnus-summary-pop-limit
1773 "s" gnus-summary-limit-to-subject
1774 "a" gnus-summary-limit-to-author
1775 "u" gnus-summary-limit-to-unread
1776 "m" gnus-summary-limit-to-marks
1777 "M" gnus-summary-limit-exclude-marks
1778 "v" gnus-summary-limit-to-score
1779 "*" gnus-summary-limit-include-cached
1780 "D" gnus-summary-limit-include-dormant
1781 "T" gnus-summary-limit-include-thread
1782 "d" gnus-summary-limit-exclude-dormant
1783 "t" gnus-summary-limit-to-age
1784 "." gnus-summary-limit-to-unseen
1785 "x" gnus-summary-limit-to-extra
1786 "p" gnus-summary-limit-to-display-predicate
1787 "E" gnus-summary-limit-include-expunged
1788 "c" gnus-summary-limit-exclude-childless-dormant
1789 "C" gnus-summary-limit-mark-excluded-as-read
1790 "o" gnus-summary-insert-old-articles
1791 "N" gnus-summary-insert-new-articles)
1792
1793(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1794 "n" gnus-summary-next-unread-article
1795 "p" gnus-summary-prev-unread-article
1796 "N" gnus-summary-next-article
1797 "P" gnus-summary-prev-article
1798 "\C-n" gnus-summary-next-same-subject
1799 "\C-p" gnus-summary-prev-same-subject
1800 "\M-n" gnus-summary-next-unread-subject
1801 "\M-p" gnus-summary-prev-unread-subject
1802 "f" gnus-summary-first-unread-article
1803 "b" gnus-summary-best-unread-article
1804 "j" gnus-summary-goto-article
1805 "g" gnus-summary-goto-subject
1806 "l" gnus-summary-goto-last-article
1807 "o" gnus-summary-pop-article)
1808
1809(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1810 "k" gnus-summary-kill-thread
1811 "l" gnus-summary-lower-thread
1812 "i" gnus-summary-raise-thread
1813 "T" gnus-summary-toggle-threads
1814 "t" gnus-summary-rethread-current
1815 "^" gnus-summary-reparent-thread
1816 "s" gnus-summary-show-thread
1817 "S" gnus-summary-show-all-threads
1818 "h" gnus-summary-hide-thread
1819 "H" gnus-summary-hide-all-threads
1820 "n" gnus-summary-next-thread
1821 "p" gnus-summary-prev-thread
1822 "u" gnus-summary-up-thread
1823 "o" gnus-summary-top-thread
1824 "d" gnus-summary-down-thread
1825 "#" gnus-uu-mark-thread
1826 "\M-#" gnus-uu-unmark-thread)
1827
1828(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1829 "g" gnus-summary-prepare
1830 "c" gnus-summary-insert-cached-articles
1831 "d" gnus-summary-insert-dormant-articles)
1832
1833(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1834 "c" gnus-summary-catchup-and-exit
1835 "C" gnus-summary-catchup-all-and-exit
1836 "E" gnus-summary-exit-no-update
1837 "Q" gnus-summary-exit
1838 "Z" gnus-summary-exit
1839 "n" gnus-summary-catchup-and-goto-next-group
1840 "R" gnus-summary-reselect-current-group
1841 "G" gnus-summary-rescan-group
1842 "N" gnus-summary-next-group
1843 "s" gnus-summary-save-newsrc
1844 "P" gnus-summary-prev-group)
1845
1846(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
1847 " " gnus-summary-next-page
1848 "n" gnus-summary-next-page
1849 "\177" gnus-summary-prev-page
1850 [delete] gnus-summary-prev-page
1851 "p" gnus-summary-prev-page
1852 "\r" gnus-summary-scroll-up
1853 "\M-\r" gnus-summary-scroll-down
1854 "<" gnus-summary-beginning-of-article
1855 ">" gnus-summary-end-of-article
1856 "b" gnus-summary-beginning-of-article
1857 "e" gnus-summary-end-of-article
1858 "^" gnus-summary-refer-parent-article
1859 "r" gnus-summary-refer-parent-article
1860 "D" gnus-summary-enter-digest-group
1861 "R" gnus-summary-refer-references
1862 "T" gnus-summary-refer-thread
1863 "g" gnus-summary-show-article
1864 "s" gnus-summary-isearch-article
1865 "P" gnus-summary-print-article
1866 "M" gnus-mailing-list-insinuate
1867 "t" gnus-article-babel)
1868
1869(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
1870 "b" gnus-article-add-buttons
1871 "B" gnus-article-add-buttons-to-head
1872 "o" gnus-article-treat-overstrike
1873 "e" gnus-article-emphasize
1874 "w" gnus-article-fill-cited-article
1875 "Q" gnus-article-fill-long-lines
1876 "C" gnus-article-capitalize-sentences
1877 "c" gnus-article-remove-cr
1878 "q" gnus-article-de-quoted-unreadable
1879 "6" gnus-article-de-base64-unreadable
1880 "Z" gnus-article-decode-HZ
1881 "h" gnus-article-wash-html
1882 "u" gnus-article-unsplit-urls
1883 "s" gnus-summary-force-verify-and-decrypt
1884 "f" gnus-article-display-x-face
1885 "l" gnus-summary-stop-page-breaking
1886 "r" gnus-summary-caesar-message
1887 "m" gnus-summary-morse-message
1888 "t" gnus-summary-toggle-header
1889 "g" gnus-treat-smiley
1890 "v" gnus-summary-verbose-headers
1891 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
1892 "p" gnus-article-verify-x-pgp-sig
1893 "d" gnus-article-treat-dumbquotes)
1894
1895(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
1896 ;; mnemonic: deuglif*Y*
1897 "u" gnus-article-outlook-unwrap-lines
1898 "a" gnus-article-outlook-repair-attribution
1899 "c" gnus-article-outlook-rearrange-citation
1900 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
1901
1902(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
1903 "a" gnus-article-hide
1904 "h" gnus-article-hide-headers
1905 "b" gnus-article-hide-boring-headers
1906 "s" gnus-article-hide-signature
1907 "c" gnus-article-hide-citation
1908 "C" gnus-article-hide-citation-in-followups
1909 "l" gnus-article-hide-list-identifiers
1910 "B" gnus-article-strip-banner
1911 "P" gnus-article-hide-pem
1912 "\C-c" gnus-article-hide-citation-maybe)
1913
1914(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
1915 "a" gnus-article-highlight
1916 "h" gnus-article-highlight-headers
1917 "c" gnus-article-highlight-citation
1918 "s" gnus-article-highlight-signature)
1919
1920(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
1921 "f" gnus-article-treat-fold-headers
1922 "u" gnus-article-treat-unfold-headers
1923 "n" gnus-article-treat-fold-newsgroups)
1924
1925(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
1926 "x" gnus-article-display-x-face
1927 "d" gnus-article-display-face
1928 "s" gnus-treat-smiley
1929 "D" gnus-article-remove-images
1930 "f" gnus-treat-from-picon
1931 "m" gnus-treat-mail-picon
1932 "n" gnus-treat-newsgroups-picon)
1933
1934(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
1935 "w" gnus-article-decode-mime-words
1936 "c" gnus-article-decode-charset
1937 "v" gnus-mime-view-all-parts
1938 "b" gnus-article-view-part)
1939
1940(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
1941 "z" gnus-article-date-ut
1942 "u" gnus-article-date-ut
1943 "l" gnus-article-date-local
1944 "p" gnus-article-date-english
1945 "e" gnus-article-date-lapsed
1946 "o" gnus-article-date-original
1947 "i" gnus-article-date-iso8601
1948 "s" gnus-article-date-user)
1949
1950(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
1951 "t" gnus-article-remove-trailing-blank-lines
1952 "l" gnus-article-strip-leading-blank-lines
1953 "m" gnus-article-strip-multiple-blank-lines
1954 "a" gnus-article-strip-blank-lines
1955 "A" gnus-article-strip-all-blank-lines
1956 "s" gnus-article-strip-leading-space
1957 "e" gnus-article-strip-trailing-space
1958 "w" gnus-article-remove-leading-whitespace)
1959
1960(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
1961 "v" gnus-version
1962 "f" gnus-summary-fetch-faq
1963 "d" gnus-summary-describe-group
1964 "h" gnus-summary-describe-briefly
1965 "i" gnus-info-find-node
1966 "c" gnus-group-fetch-charter
1967 "C" gnus-group-fetch-control)
1968
1969(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
1970 "e" gnus-summary-expire-articles
1971 "\M-\C-e" gnus-summary-expire-articles-now
1972 "\177" gnus-summary-delete-article
1973 [delete] gnus-summary-delete-article
1974 [backspace] gnus-summary-delete-article
1975 "m" gnus-summary-move-article
1976 "r" gnus-summary-respool-article
1977 "w" gnus-summary-edit-article
1978 "c" gnus-summary-copy-article
1979 "B" gnus-summary-crosspost-article
1980 "q" gnus-summary-respool-query
1981 "t" gnus-summary-respool-trace
1982 "i" gnus-summary-import-article
1983 "I" gnus-summary-create-article
1984 "p" gnus-summary-article-posted-p)
1985
1986(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
1987 "o" gnus-summary-save-article
1988 "m" gnus-summary-save-article-mail
1989 "F" gnus-summary-write-article-file
1990 "r" gnus-summary-save-article-rmail
1991 "f" gnus-summary-save-article-file
1992 "b" gnus-summary-save-article-body-file
1993 "h" gnus-summary-save-article-folder
1994 "v" gnus-summary-save-article-vm
1995 "p" gnus-summary-pipe-output
1996 "P" gnus-summary-muttprint
1997 "s" gnus-soup-add-article)
1998
1999(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2000 "b" gnus-summary-display-buttonized
2001 "m" gnus-summary-repair-multipart
2002 "v" gnus-article-view-part
2003 "o" gnus-article-save-part
2004 "c" gnus-article-copy-part
2005 "C" gnus-article-view-part-as-charset
2006 "e" gnus-article-view-part-externally
2007 "E" gnus-article-encrypt-body
2008 "i" gnus-article-inline-part
2009 "|" gnus-article-pipe-part)
2010
2011(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2012 "p" gnus-summary-mark-as-processable
2013 "u" gnus-summary-unmark-as-processable
2014 "U" gnus-summary-unmark-all-processable
2015 "v" gnus-uu-mark-over
2016 "s" gnus-uu-mark-series
2017 "r" gnus-uu-mark-region
2018 "g" gnus-uu-unmark-region
2019 "R" gnus-uu-mark-by-regexp
2020 "G" gnus-uu-unmark-by-regexp
2021 "t" gnus-uu-mark-thread
2022 "T" gnus-uu-unmark-thread
2023 "a" gnus-uu-mark-all
2024 "b" gnus-uu-mark-buffer
2025 "S" gnus-uu-mark-sparse
2026 "k" gnus-summary-kill-process-mark
2027 "y" gnus-summary-yank-process-mark
2028 "w" gnus-summary-save-process-mark
2029 "i" gnus-uu-invert-processable)
2030
2031(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2032 ;;"x" gnus-uu-extract-any
2033 "m" gnus-summary-save-parts
2034 "u" gnus-uu-decode-uu
2035 "U" gnus-uu-decode-uu-and-save
2036 "s" gnus-uu-decode-unshar
2037 "S" gnus-uu-decode-unshar-and-save
2038 "o" gnus-uu-decode-save
2039 "O" gnus-uu-decode-save
2040 "b" gnus-uu-decode-binhex
2041 "B" gnus-uu-decode-binhex
2042 "p" gnus-uu-decode-postscript
2043 "P" gnus-uu-decode-postscript-and-save)
2044
2045(gnus-define-keys
2046 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2047 "u" gnus-uu-decode-uu-view
2048 "U" gnus-uu-decode-uu-and-save-view
2049 "s" gnus-uu-decode-unshar-view
2050 "S" gnus-uu-decode-unshar-and-save-view
2051 "o" gnus-uu-decode-save-view
2052 "O" gnus-uu-decode-save-view
2053 "b" gnus-uu-decode-binhex-view
2054 "B" gnus-uu-decode-binhex-view
2055 "p" gnus-uu-decode-postscript-view
2056 "P" gnus-uu-decode-postscript-and-save-view)
2057
2058(defvar gnus-article-post-menu nil)
2059
2060(defconst gnus-summary-menu-maxlen 20)
2061
2062(defun gnus-summary-menu-split (menu)
2063 ;; If we have lots of elements, divide them into groups of 20
2064 ;; and make a pane (or submenu) for each one.
2065 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2066 (let ((menu menu) sublists next
2067 (i 1))
2068 (while menu
2069 ;; Pull off the next gnus-summary-menu-maxlen elements
2070 ;; and make them the next element of sublist.
2071 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2072 (if next
2073 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2074 nil))
2075 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2076 (aref (car (last menu)) 0)) menu)
2077 sublists))
2078 (setq i (1+ i))
2079 (setq menu next))
2080 (nreverse sublists))
2081 ;; Few elements--put them all in one pane.
2082 menu))
eec82323
LMI
2083
2084(defun gnus-summary-make-menu-bar ()
2085 (gnus-turn-off-edit-menu 'summary)
2086
2087 (unless (boundp 'gnus-summary-misc-menu)
2088
2089 (easy-menu-define
23f87bed
MB
2090 gnus-summary-kill-menu gnus-summary-mode-map ""
2091 (cons
2092 "Score"
2093 (nconc
2094 (list
2095 ["Customize" gnus-score-customize t])
2096 (gnus-make-score-map 'increase)
2097 (gnus-make-score-map 'lower)
2098 '(("Mark"
2099 ["Kill below" gnus-summary-kill-below t]
2100 ["Mark above" gnus-summary-mark-above t]
2101 ["Tick above" gnus-summary-tick-above t]
2102 ["Clear above" gnus-summary-clear-above t])
2103 ["Current score" gnus-summary-current-score t]
2104 ["Set score" gnus-summary-set-score t]
2105 ["Switch current score file..." gnus-score-change-score-file t]
2106 ["Set mark below..." gnus-score-set-mark-below t]
2107 ["Set expunge below..." gnus-score-set-expunge-below t]
2108 ["Edit current score file" gnus-score-edit-current-scores t]
2109 ["Edit score file" gnus-score-edit-file t]
2110 ["Trace score" gnus-score-find-trace t]
2111 ["Find words" gnus-score-find-favourite-words t]
2112 ["Rescore buffer" gnus-summary-rescore t]
2113 ["Increase score..." gnus-summary-increase-score t]
2114 ["Lower score..." gnus-summary-lower-score t]))))
2115
2116 ;; Define both the Article menu in the summary buffer and the
2117 ;; equivalent Commands menu in the article buffer here for
2118 ;; consistency.
6748645f 2119 (let ((innards
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2120 `(("Hide"
2121 ["All" gnus-article-hide t]
2122 ["Headers" gnus-article-hide-headers t]
2123 ["Signature" gnus-article-hide-signature t]
2124 ["Citation" gnus-article-hide-citation t]
16409b0b 2125 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2126 ["Banner" gnus-article-strip-banner t]
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2127 ["Boring headers" gnus-article-hide-boring-headers t])
2128 ("Highlight"
2129 ["All" gnus-article-highlight t]
2130 ["Headers" gnus-article-highlight-headers t]
2131 ["Signature" gnus-article-highlight-signature t]
2132 ["Citation" gnus-article-highlight-citation t])
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GM
2133 ("MIME"
2134 ["Words" gnus-article-decode-mime-words t]
2135 ["Charset" gnus-article-decode-charset t]
2136 ["QP" gnus-article-de-quoted-unreadable t]
2137 ["Base64" gnus-article-de-base64-unreadable t]
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2138 ["View MIME buttons" gnus-summary-display-buttonized t]
2139 ["View all" gnus-mime-view-all-parts t]
2140 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2141 ["Encrypt body" gnus-article-encrypt-body
2142 :active (not (gnus-group-read-only-p))
2143 ,@(if (featurep 'xemacs) nil
2144 '(:help "Encrypt the message body on disk"))]
2145 ["Extract all parts..." gnus-summary-save-parts t]
2146 ("Multipart"
2147 ["Repair multipart" gnus-summary-repair-multipart t]
2148 ["Pipe part..." gnus-article-pipe-part t]
2149 ["Inline part" gnus-article-inline-part t]
2150 ["Encrypt body" gnus-article-encrypt-body
2151 :active (not (gnus-group-read-only-p))
2152 ,@(if (featurep 'xemacs) nil
2153 '(:help "Encrypt the message body on disk"))]
2154 ["View part externally" gnus-article-view-part-externally t]
2155 ["View part with charset..." gnus-article-view-part-as-charset t]
2156 ["Copy part" gnus-article-copy-part t]
2157 ["Save part..." gnus-article-save-part t]
2158 ["View part" gnus-article-view-part t]))
2159 ("Date"
2160 ["Local" gnus-article-date-local t]
2161 ["ISO8601" gnus-article-date-iso8601 t]
2162 ["UT" gnus-article-date-ut t]
2163 ["Original" gnus-article-date-original t]
2164 ["Lapsed" gnus-article-date-lapsed t]
2165 ["User-defined" gnus-article-date-user t])
2166 ("Display"
2167 ["Remove images" gnus-article-remove-images t]
2168 ["Toggle smiley" gnus-treat-smiley t]
2169 ["Show X-Face" gnus-article-display-x-face t]
2170 ["Show picons in From" gnus-treat-from-picon t]
2171 ["Show picons in mail headers" gnus-treat-mail-picon t]
2172 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2173 ("View as different encoding"
2174 ,@(gnus-summary-menu-split
2175 (mapcar
2176 (lambda (cs)
2177 ;; Since easymenu under Emacs doesn't allow
2178 ;; lambda forms for menu commands, we should
2179 ;; provide intern'ed function symbols.
2180 (let ((command (intern (format "\
2181gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2182 (fset command
2183 `(lambda ()
2184 (interactive)
2185 (let ((gnus-summary-show-article-charset-alist
2186 '((1 . ,cs))))
2187 (gnus-summary-show-article 1))))
2188 `[,(symbol-name cs) ,command t]))
2189 (sort (if (fboundp 'coding-system-list)
2190 (coding-system-list)
2191 (mapcar 'car mm-mime-mule-charset-alist))
2192 'string<)))))
2193 ("Washing"
2194 ("Remove Blanks"
2195 ["Leading" gnus-article-strip-leading-blank-lines t]
2196 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2197 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2198 ["All of the above" gnus-article-strip-blank-lines t]
2199 ["All" gnus-article-strip-all-blank-lines t]
2200 ["Leading space" gnus-article-strip-leading-space t]
2201 ["Trailing space" gnus-article-strip-trailing-space t]
2202 ["Leading space in headers"
2203 gnus-article-remove-leading-whitespace t])
2204 ["Overstrike" gnus-article-treat-overstrike t]
2205 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2206 ["Emphasis" gnus-article-emphasize t]
2207 ["Word wrap" gnus-article-fill-cited-article t]
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2208 ["Fill long lines" gnus-article-fill-long-lines t]
2209 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2210 ["Remove CR" gnus-article-remove-cr t]
2211 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2212 ["Base64" gnus-article-de-base64-unreadable t]
2213 ["Rot 13" gnus-summary-caesar-message
2214 ,@(if (featurep 'xemacs) '(t)
2215 '(:help "\"Caesar rotate\" article by 13"))]
2216 ["Morse decode" gnus-summary-morse-message t]
2217 ["Unix pipe..." gnus-summary-pipe-message t]
2218 ["Add buttons" gnus-article-add-buttons t]
2219 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2220 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2221 ["Verbose header" gnus-summary-verbose-headers t]
2222 ["Toggle header" gnus-summary-toggle-header t]
2223 ["Unfold headers" gnus-article-treat-unfold-headers t]
2224 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2225 ["Html" gnus-article-wash-html t]
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2226 ["Unsplit URLs" gnus-article-unsplit-urls t]
2227 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2228 ["Decode HZ" gnus-article-decode-HZ t]
2229 ("(Outlook) Deuglify"
2230 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2231 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2232 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2233 ["Full (Outlook) deuglify"
2234 gnus-article-outlook-deuglify-article t])
2235 )
2236 ("Output"
2237 ["Save in default format..." gnus-summary-save-article
2238 ,@(if (featurep 'xemacs) '(t)
2239 '(:help "Save article using default method"))]
2240 ["Save in file..." gnus-summary-save-article-file
2241 ,@(if (featurep 'xemacs) '(t)
2242 '(:help "Save article in file"))]
2243 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2244 ["Save in MH folder..." gnus-summary-save-article-folder t]
2245 ["Save in VM folder..." gnus-summary-save-article-vm t]
2246 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2247 ["Save body in file..." gnus-summary-save-article-body-file t]
2248 ["Pipe through a filter..." gnus-summary-pipe-output t]
2249 ["Add to SOUP packet" gnus-soup-add-article t]
2250 ["Print with Muttprint..." gnus-summary-muttprint t]
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2251 ["Print" gnus-summary-print-article
2252 ,@(if (featurep 'xemacs) '(t)
2253 '(:help "Generate and print a PostScript image"))])
2254 ("Copy, move,... (Backend)"
707f2b38 2255 ,@(if (featurep 'xemacs) nil
531e5812 2256 '(:help "Copying, moving, expiring articles..."))
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2257 ["Respool article..." gnus-summary-respool-article t]
2258 ["Move article..." gnus-summary-move-article
2259 (gnus-check-backend-function
2260 'request-move-article gnus-newsgroup-name)]
2261 ["Copy article..." gnus-summary-copy-article t]
2262 ["Crosspost article..." gnus-summary-crosspost-article
2263 (gnus-check-backend-function
2264 'request-replace-article gnus-newsgroup-name)]
2265 ["Import file..." gnus-summary-import-article
2266 (gnus-check-backend-function
2267 'request-accept-article gnus-newsgroup-name)]
2268 ["Create article..." gnus-summary-create-article
2269 (gnus-check-backend-function
2270 'request-accept-article gnus-newsgroup-name)]
2271 ["Check if posted" gnus-summary-article-posted-p t]
2272 ["Edit article" gnus-summary-edit-article
2273 (not (gnus-group-read-only-p))]
2274 ["Delete article" gnus-summary-delete-article
2275 (gnus-check-backend-function
2276 'request-expire-articles gnus-newsgroup-name)]
2277 ["Query respool" gnus-summary-respool-query t]
6748645f 2278 ["Trace respool" gnus-summary-respool-trace t]
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2279 ["Delete expirable articles" gnus-summary-expire-articles-now
2280 (gnus-check-backend-function
2281 'request-expire-articles gnus-newsgroup-name)])
2282 ("Extract"
2283 ["Uudecode" gnus-uu-decode-uu
2284 ,@(if (featurep 'xemacs) '(t)
2285 '(:help "Decode uuencoded article(s)"))]
2286 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2287 ["Unshar" gnus-uu-decode-unshar t]
2288 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2289 ["Save" gnus-uu-decode-save t]
2290 ["Binhex" gnus-uu-decode-binhex t]
2291 ["Postscript" gnus-uu-decode-postscript t]
2292 ["All MIME parts" gnus-summary-save-parts t])
2293 ("Cache"
2294 ["Enter article" gnus-cache-enter-article t]
2295 ["Remove article" gnus-cache-remove-article t])
16409b0b 2296 ["Translate" gnus-article-babel t]
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2297 ["Select article buffer" gnus-summary-select-article-buffer t]
2298 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2299 ["Isearch article..." gnus-summary-isearch-article t]
2300 ["Beginning of the article" gnus-summary-beginning-of-article t]
2301 ["End of the article" gnus-summary-end-of-article t]
2302 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2303 ["Fetch referenced articles" gnus-summary-refer-references t]
2304 ["Fetch current thread" gnus-summary-refer-thread t]
2305 ["Fetch article with id..." gnus-summary-refer-article t]
2306 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2307 ["Redisplay" gnus-summary-show-article t]
2308 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2309 (easy-menu-define
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2310 gnus-summary-article-menu gnus-summary-mode-map ""
2311 (cons "Article" innards))
6748645f 2312
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2313 (if (not (keymapp gnus-summary-article-menu))
2314 (easy-menu-define
2315 gnus-article-commands-menu gnus-article-mode-map ""
2316 (cons "Commands" innards))
2317 ;; in Emacs, don't share menu.
a1506d29 2318 (setq gnus-article-commands-menu
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2319 (copy-keymap gnus-summary-article-menu))
2320 (define-key gnus-article-mode-map [menu-bar commands]
2321 (cons "Commands" gnus-article-commands-menu))))
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2322
2323 (easy-menu-define
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2324 gnus-summary-thread-menu gnus-summary-mode-map ""
2325 '("Threads"
2326 ["Find all messages in thread" gnus-summary-refer-thread t]
2327 ["Toggle threading" gnus-summary-toggle-threads t]
2328 ["Hide threads" gnus-summary-hide-all-threads t]
2329 ["Show threads" gnus-summary-show-all-threads t]
2330 ["Hide thread" gnus-summary-hide-thread t]
2331 ["Show thread" gnus-summary-show-thread t]
2332 ["Go to next thread" gnus-summary-next-thread t]
2333 ["Go to previous thread" gnus-summary-prev-thread t]
2334 ["Go down thread" gnus-summary-down-thread t]
2335 ["Go up thread" gnus-summary-up-thread t]
2336 ["Top of thread" gnus-summary-top-thread t]
2337 ["Mark thread as read" gnus-summary-kill-thread t]
2338 ["Lower thread score" gnus-summary-lower-thread t]
2339 ["Raise thread score" gnus-summary-raise-thread t]
2340 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
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2341
2342 (easy-menu-define
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2343 gnus-summary-post-menu gnus-summary-mode-map ""
2344 `("Post"
2345 ["Send a message (mail or news)" gnus-summary-post-news
2346 ,@(if (featurep 'xemacs) '(t)
531e5812 2347 '(:help "Compose a new message (mail or news)"))]
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2348 ["Followup" gnus-summary-followup
2349 ,@(if (featurep 'xemacs) '(t)
2350 '(:help "Post followup to this article"))]
2351 ["Followup and yank" gnus-summary-followup-with-original
2352 ,@(if (featurep 'xemacs) '(t)
2353 '(:help "Post followup to this article, quoting its contents"))]
2354 ["Supersede article" gnus-summary-supersede-article t]
2355 ["Cancel article" gnus-summary-cancel-article
2356 ,@(if (featurep 'xemacs) '(t)
2357 '(:help "Cancel an article you posted"))]
2358 ["Reply" gnus-summary-reply t]
2359 ["Reply and yank" gnus-summary-reply-with-original t]
2360 ["Wide reply" gnus-summary-wide-reply t]
2361 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2362 ,@(if (featurep 'xemacs) '(t)
2363 '(:help "Mail a reply, quoting this article"))]
2364 ["Very wide reply" gnus-summary-very-wide-reply t]
2365 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2366 ,@(if (featurep 'xemacs) '(t)
2367 '(:help "Mail a very wide reply, quoting this article"))]
2368 ["Mail forward" gnus-summary-mail-forward t]
2369 ["Post forward" gnus-summary-post-forward t]
2370 ["Digest and mail" gnus-uu-digest-mail-forward t]
2371 ["Digest and post" gnus-uu-digest-post-forward t]
2372 ["Resend message" gnus-summary-resend-message t]
2373 ["Resend message edit" gnus-summary-resend-message-edit t]
2374 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2375 ["Send a mail" gnus-summary-mail-other-window t]
2376 ["Create a local message" gnus-summary-news-other-window t]
2377 ["Uuencode and post" gnus-uu-post-news
2378 ,@(if (featurep 'xemacs) '(t)
2379 '(:help "Post a uuencoded article"))]
2380 ["Followup via news" gnus-summary-followup-to-mail t]
2381 ["Followup via news and yank"
2382 gnus-summary-followup-to-mail-with-original t]
2383 ;;("Draft"
2384 ;;["Send" gnus-summary-send-draft t]
2385 ;;["Send bounced" gnus-resend-bounced-mail t])
2386 ))
2387
2388 (cond
2389 ((not (keymapp gnus-summary-post-menu))
2390 (setq gnus-article-post-menu gnus-summary-post-menu))
2391 ((not gnus-article-post-menu)
2392 ;; Don't share post menu.
2393 (setq gnus-article-post-menu
2394 (copy-keymap gnus-summary-post-menu))))
2395 (define-key gnus-article-mode-map [menu-bar post]
2396 (cons "Post" gnus-article-post-menu))
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2397
2398 (easy-menu-define
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2399 gnus-summary-misc-menu gnus-summary-mode-map ""
2400 `("Gnus"
2401 ("Mark Read"
2402 ["Mark as read" gnus-summary-mark-as-read-forward t]
2403 ["Mark same subject and select"
2404 gnus-summary-kill-same-subject-and-select t]
2405 ["Mark same subject" gnus-summary-kill-same-subject t]
2406 ["Catchup" gnus-summary-catchup
2407 ,@(if (featurep 'xemacs) '(t)
2408 '(:help "Mark unread articles in this group as read"))]
2409 ["Catchup all" gnus-summary-catchup-all t]
2410 ["Catchup to here" gnus-summary-catchup-to-here t]
2411 ["Catchup from here" gnus-summary-catchup-from-here t]
2412 ["Catchup region" gnus-summary-mark-region-as-read
2413 (gnus-mark-active-p)]
2414 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2415 ("Mark Various"
2416 ["Tick" gnus-summary-tick-article-forward t]
2417 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2418 ["Remove marks" gnus-summary-clear-mark-forward t]
2419 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2420 ["Set bookmark" gnus-summary-set-bookmark t]
2421 ["Remove bookmark" gnus-summary-remove-bookmark t])
2422 ("Limit to"
2423 ["Marks..." gnus-summary-limit-to-marks t]
2424 ["Subject..." gnus-summary-limit-to-subject t]
2425 ["Author..." gnus-summary-limit-to-author t]
2426 ["Age..." gnus-summary-limit-to-age t]
2427 ["Extra..." gnus-summary-limit-to-extra t]
2428 ["Score..." gnus-summary-limit-to-score t]
2429 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2430 ["Unread" gnus-summary-limit-to-unread t]
2431 ["Unseen" gnus-summary-limit-to-unseen t]
2432 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
2433 ["Next articles" gnus-summary-limit-to-articles t]
2434 ["Pop limit" gnus-summary-pop-limit t]
2435 ["Show dormant" gnus-summary-limit-include-dormant t]
2436 ["Hide childless dormant"
2437 gnus-summary-limit-exclude-childless-dormant t]
2438 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2439 ["Hide marked" gnus-summary-limit-exclude-marks t]
2440 ["Show expunged" gnus-summary-limit-include-expunged t])
2441 ("Process Mark"
2442 ["Set mark" gnus-summary-mark-as-processable t]
2443 ["Remove mark" gnus-summary-unmark-as-processable t]
2444 ["Remove all marks" gnus-summary-unmark-all-processable t]
2445 ["Mark above" gnus-uu-mark-over t]
2446 ["Mark series" gnus-uu-mark-series t]
2447 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2448 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2449 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2450 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2451 ["Mark all" gnus-uu-mark-all t]
2452 ["Mark buffer" gnus-uu-mark-buffer t]
2453 ["Mark sparse" gnus-uu-mark-sparse t]
2454 ["Mark thread" gnus-uu-mark-thread t]
2455 ["Unmark thread" gnus-uu-unmark-thread t]
2456 ("Process Mark Sets"
2457 ["Kill" gnus-summary-kill-process-mark t]
2458 ["Yank" gnus-summary-yank-process-mark
2459 gnus-newsgroup-process-stack]
2460 ["Save" gnus-summary-save-process-mark t]
2461 ["Run command on marked..." gnus-summary-universal-argument t]))
2462 ("Scroll article"
2463 ["Page forward" gnus-summary-next-page
2464 ,@(if (featurep 'xemacs) '(t)
2465 '(:help "Show next page of article"))]
2466 ["Page backward" gnus-summary-prev-page
2467 ,@(if (featurep 'xemacs) '(t)
2468 '(:help "Show previous page of article"))]
2469 ["Line forward" gnus-summary-scroll-up t])
2470 ("Move"
2471 ["Next unread article" gnus-summary-next-unread-article t]
2472 ["Previous unread article" gnus-summary-prev-unread-article t]
2473 ["Next article" gnus-summary-next-article t]
2474 ["Previous article" gnus-summary-prev-article t]
2475 ["Next unread subject" gnus-summary-next-unread-subject t]
2476 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2477 ["Next article same subject" gnus-summary-next-same-subject t]
2478 ["Previous article same subject" gnus-summary-prev-same-subject t]
2479 ["First unread article" gnus-summary-first-unread-article t]
2480 ["Best unread article" gnus-summary-best-unread-article t]
2481 ["Go to subject number..." gnus-summary-goto-subject t]
2482 ["Go to article number..." gnus-summary-goto-article t]
2483 ["Go to the last article" gnus-summary-goto-last-article t]
2484 ["Pop article off history" gnus-summary-pop-article t])
2485 ("Sort"
2486 ["Sort by number" gnus-summary-sort-by-number t]
2487 ["Sort by author" gnus-summary-sort-by-author t]
2488 ["Sort by subject" gnus-summary-sort-by-subject t]
2489 ["Sort by date" gnus-summary-sort-by-date t]
2490 ["Sort by score" gnus-summary-sort-by-score t]
2491 ["Sort by lines" gnus-summary-sort-by-lines t]
2492 ["Sort by characters" gnus-summary-sort-by-chars t]
2493 ["Randomize" gnus-summary-sort-by-random t]
2494 ["Original sort" gnus-summary-sort-by-original t])
2495 ("Help"
2496 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2497 ["Describe group" gnus-summary-describe-group t]
2498 ["Fetch charter" gnus-group-fetch-charter
2499 ,@(if (featurep 'xemacs) nil
2500 '(:help "Display the charter of the current group"))]
2501 ["Fetch control message" gnus-group-fetch-control
2502 ,@(if (featurep 'xemacs) nil
2503 '(:help "Display the archived control message for the current group"))]
2504 ["Read manual" gnus-info-find-node t])
2505 ("Modes"
2506 ["Pick and read" gnus-pick-mode t]
2507 ["Binary" gnus-binary-mode t])
2508 ("Regeneration"
2509 ["Regenerate" gnus-summary-prepare t]
2510 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2511 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
2512 ["Toggle threading" gnus-summary-toggle-threads t])
2513 ["See old articles" gnus-summary-insert-old-articles t]
2514 ["See new articles" gnus-summary-insert-new-articles t]
2515 ["Filter articles..." gnus-summary-execute-command t]
2516 ["Run command on articles..." gnus-summary-universal-argument t]
2517 ["Search articles forward..." gnus-summary-search-article-forward t]
2518 ["Search articles backward..." gnus-summary-search-article-backward t]
2519 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2520 ["Expand window" gnus-summary-expand-window t]
2521 ["Expire expirable articles" gnus-summary-expire-articles
2522 (gnus-check-backend-function
2523 'request-expire-articles gnus-newsgroup-name)]
2524 ["Edit local kill file" gnus-summary-edit-local-kill t]
2525 ["Edit main kill file" gnus-summary-edit-global-kill t]
2526 ["Edit group parameters" gnus-summary-edit-parameters t]
2527 ["Customize group parameters" gnus-summary-customize-parameters t]
2528 ["Send a bug report" gnus-bug t]
2529 ("Exit"
2530 ["Catchup and exit" gnus-summary-catchup-and-exit
2531 ,@(if (featurep 'xemacs) '(t)
2532 '(:help "Mark unread articles in this group as read, then exit"))]
2533 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2534 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
2535 ["Exit group" gnus-summary-exit
2536 ,@(if (featurep 'xemacs) '(t)
2537 '(:help "Exit current group, return to group selection mode"))]
2538 ["Exit group without updating" gnus-summary-exit-no-update t]
2539 ["Exit and goto next group" gnus-summary-next-group t]
2540 ["Exit and goto prev group" gnus-summary-prev-group t]
2541 ["Reselect group" gnus-summary-reselect-current-group t]
2542 ["Rescan group" gnus-summary-rescan-group t]
2543 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2544
6748645f 2545 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2546
60bd5589
DL
2547(defvar gnus-summary-tool-bar-map nil)
2548
9a0026a6 2549;; Emacs 21 tool bar. Should be no-op otherwise.
60bd5589 2550(defun gnus-summary-make-tool-bar ()
23f87bed
MB
2551 (if (and (fboundp 'tool-bar-add-item-from-menu)
2552 (default-value 'tool-bar-mode)
2553 (not gnus-summary-tool-bar-map))
60bd5589 2554 (setq gnus-summary-tool-bar-map
23f87bed
MB
2555 (let ((tool-bar-map (make-sparse-keymap))
2556 (load-path (mm-image-load-path)))
60bd5589
DL
2557 (tool-bar-add-item-from-menu
2558 'gnus-summary-prev-unread "prev-ur" gnus-summary-mode-map)
2559 (tool-bar-add-item-from-menu
2560 'gnus-summary-next-unread "next-ur" gnus-summary-mode-map)
2561 (tool-bar-add-item-from-menu
2562 'gnus-summary-post-news "post" gnus-summary-mode-map)
2563 (tool-bar-add-item-from-menu
2564 'gnus-summary-followup-with-original "fuwo" gnus-summary-mode-map)
2565 (tool-bar-add-item-from-menu
2566 'gnus-summary-followup "followup" gnus-summary-mode-map)
2567 (tool-bar-add-item-from-menu
2568 'gnus-summary-reply-with-original "reply-wo" gnus-summary-mode-map)
2569 (tool-bar-add-item-from-menu
2570 'gnus-summary-reply "reply" gnus-summary-mode-map)
2571 (tool-bar-add-item-from-menu
2572 'gnus-summary-caesar-message "rot13" gnus-summary-mode-map)
2573 (tool-bar-add-item-from-menu
2574 'gnus-uu-decode-uu "uu-decode" gnus-summary-mode-map)
2575 (tool-bar-add-item-from-menu
2576 'gnus-summary-save-article-file "save-aif" gnus-summary-mode-map)
2577 (tool-bar-add-item-from-menu
2578 'gnus-summary-save-article "save-art" gnus-summary-mode-map)
2579 (tool-bar-add-item-from-menu
2580 'gnus-uu-post-news "uu-post" gnus-summary-mode-map)
2581 (tool-bar-add-item-from-menu
2582 'gnus-summary-catchup "catchup" gnus-summary-mode-map)
2583 (tool-bar-add-item-from-menu
2584 'gnus-summary-catchup-and-exit "cu-exit" gnus-summary-mode-map)
2585 (tool-bar-add-item-from-menu
2586 'gnus-summary-exit "exit-summ" gnus-summary-mode-map)
2587 tool-bar-map)))
2588 (if gnus-summary-tool-bar-map
2589 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
2590
eec82323
LMI
2591(defun gnus-score-set-default (var value)
2592 "A version of set that updates the GNU Emacs menu-bar."
2593 (set var value)
2594 ;; It is the message that forces the active status to be updated.
2595 (message ""))
2596
2597(defun gnus-make-score-map (type)
2598 "Make a summary score map of type TYPE."
2599 (if t
2600 nil
2601 (let ((headers '(("author" "from" string)
2602 ("subject" "subject" string)
2603 ("article body" "body" string)
2604 ("article head" "head" string)
2605 ("xref" "xref" string)
16409b0b 2606 ("extra header" "extra" string)
eec82323
LMI
2607 ("lines" "lines" number)
2608 ("followups to author" "followup" string)))
2609 (types '((number ("less than" <)
2610 ("greater than" >)
2611 ("equal" =))
2612 (string ("substring" s)
2613 ("exact string" e)
2614 ("fuzzy string" f)
2615 ("regexp" r))))
2616 (perms '(("temporary" (current-time-string))
2617 ("permanent" nil)
2618 ("immediate" now)))
2619 header)
2620 (list
2621 (apply
2622 'nconc
2623 (list
2624 (if (eq type 'lower)
2625 "Lower score"
2626 "Increase score"))
2627 (let (outh)
2628 (while headers
2629 (setq header (car headers))
2630 (setq outh
2631 (cons
2632 (apply
2633 'nconc
2634 (list (car header))
2635 (let ((ts (cdr (assoc (nth 2 header) types)))
2636 outt)
2637 (while ts
2638 (setq outt
2639 (cons
2640 (apply
2641 'nconc
2642 (list (caar ts))
2643 (let ((ps perms)
2644 outp)
2645 (while ps
2646 (setq outp
2647 (cons
2648 (vector
2649 (caar ps)
2650 (list
2651 'gnus-summary-score-entry
2652 (nth 1 header)
2653 (if (or (string= (nth 1 header)
2654 "head")
2655 (string= (nth 1 header)
2656 "body"))
2657 ""
2658 (list 'gnus-summary-header
2659 (nth 1 header)))
2660 (list 'quote (nth 1 (car ts)))
16409b0b
GM
2661 (list 'gnus-score-delta-default
2662 nil)
eec82323
LMI
2663 (nth 1 (car ps))
2664 t)
2665 t)
2666 outp))
2667 (setq ps (cdr ps)))
2668 (list (nreverse outp))))
2669 outt))
2670 (setq ts (cdr ts)))
2671 (list (nreverse outt))))
2672 outh))
2673 (setq headers (cdr headers)))
2674 (list (nreverse outh))))))))
2675
2676\f
2677
2678(defun gnus-summary-mode (&optional group)
2679 "Major mode for reading articles.
2680
2681All normal editing commands are switched off.
2682\\<gnus-summary-mode-map>
2683Each line in this buffer represents one article. To read an
2684article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
2685and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
2686respectively.
2687
2688You can also post articles and send mail from this buffer. To
23f87bed 2689follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
2690of an article, type `\\[gnus-summary-reply]'.
2691
2692There are approx. one gazillion commands you can execute in this
2693buffer; read the info pages for more information (`\\[gnus-info-find-node]').
2694
2695The following commands are available:
2696
2697\\{gnus-summary-mode-map}"
2698 (interactive)
eec82323 2699 (kill-all-local-variables)
60bd5589
DL
2700 (when (gnus-visual-p 'summary-menu 'menu)
2701 (gnus-summary-make-menu-bar)
2702 (gnus-summary-make-tool-bar))
eec82323 2703 (gnus-summary-make-local-variables)
23f87bed
MB
2704 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
2705 (gnus-summary-make-local-variables))
eec82323
LMI
2706 (gnus-make-thread-indent-array)
2707 (gnus-simplify-mode-line)
2708 (setq major-mode 'gnus-summary-mode)
2709 (setq mode-name "Summary")
2710 (make-local-variable 'minor-mode-alist)
2711 (use-local-map gnus-summary-mode-map)
16409b0b 2712 (buffer-disable-undo)
eec82323
LMI
2713 (setq buffer-read-only t) ;Disable modification
2714 (setq truncate-lines t)
2715 (setq selective-display t)
2716 (setq selective-display-ellipses t) ;Display `...'
2717 (gnus-summary-set-display-table)
2718 (gnus-set-default-directory)
2719 (setq gnus-newsgroup-name group)
2720 (make-local-variable 'gnus-summary-line-format)
2721 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
2722 (make-local-variable 'gnus-summary-dummy-line-format)
2723 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 2724 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 2725 (gnus-make-local-hook 'pre-command-hook)
6748645f 2726 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 2727 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 2728 (turn-on-gnus-mailing-list-mode)
87545352 2729 (mm-enable-multibyte)
eec82323
LMI
2730 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
2731 (gnus-update-summary-mark-positions))
2732
2733(defun gnus-summary-make-local-variables ()
2734 "Make all the local summary buffer variables."
16409b0b
GM
2735 (let (global)
2736 (dolist (local gnus-summary-local-variables)
eec82323
LMI
2737 (if (consp local)
2738 (progn
2739 (if (eq (cdr local) 'global)
2740 ;; Copy the global value of the variable.
2741 (setq global (symbol-value (car local)))
2742 ;; Use the value from the list.
2743 (setq global (eval (cdr local))))
16409b0b 2744 (set (make-local-variable (car local)) global))
eec82323 2745 ;; Simple nil-valued local variable.
16409b0b 2746 (set (make-local-variable local) nil)))))
eec82323
LMI
2747
2748(defun gnus-summary-clear-local-variables ()
2749 (let ((locals gnus-summary-local-variables))
2750 (while locals
2751 (if (consp (car locals))
2752 (and (vectorp (caar locals))
2753 (set (caar locals) nil))
2754 (and (vectorp (car locals))
2755 (set (car locals) nil)))
2756 (setq locals (cdr locals)))))
2757
2758;; Summary data functions.
2759
2760(defmacro gnus-data-number (data)
2761 `(car ,data))
2762
2763(defmacro gnus-data-set-number (data number)
2764 `(setcar ,data ,number))
2765
2766(defmacro gnus-data-mark (data)
2767 `(nth 1 ,data))
2768
2769(defmacro gnus-data-set-mark (data mark)
2770 `(setcar (nthcdr 1 ,data) ,mark))
2771
2772(defmacro gnus-data-pos (data)
2773 `(nth 2 ,data))
2774
2775(defmacro gnus-data-set-pos (data pos)
2776 `(setcar (nthcdr 2 ,data) ,pos))
2777
2778(defmacro gnus-data-header (data)
2779 `(nth 3 ,data))
2780
2781(defmacro gnus-data-set-header (data header)
2782 `(setf (nth 3 ,data) ,header))
2783
2784(defmacro gnus-data-level (data)
2785 `(nth 4 ,data))
2786
2787(defmacro gnus-data-unread-p (data)
2788 `(= (nth 1 ,data) gnus-unread-mark))
2789
2790(defmacro gnus-data-read-p (data)
2791 `(/= (nth 1 ,data) gnus-unread-mark))
2792
2793(defmacro gnus-data-pseudo-p (data)
2794 `(consp (nth 3 ,data)))
2795
2796(defmacro gnus-data-find (number)
2797 `(assq ,number gnus-newsgroup-data))
2798
2799(defmacro gnus-data-find-list (number &optional data)
2800 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
2801 (memq (assq ,number bdata)
2802 bdata)))
2803
2804(defmacro gnus-data-make (number mark pos header level)
2805 `(list ,number ,mark ,pos ,header ,level))
2806
2807(defun gnus-data-enter (after-article number mark pos header level offset)
2808 (let ((data (gnus-data-find-list after-article)))
2809 (unless data
2810 (error "No such article: %d" after-article))
2811 (setcdr data (cons (gnus-data-make number mark pos header level)
2812 (cdr data)))
2813 (setq gnus-newsgroup-data-reverse nil)
2814 (gnus-data-update-list (cddr data) offset)))
2815
2816(defun gnus-data-enter-list (after-article list &optional offset)
2817 (when list
2818 (let ((data (and after-article (gnus-data-find-list after-article)))
2819 (ilist list))
6748645f
LMI
2820 (if (not (or data
2821 after-article))
2822 (let ((odata gnus-newsgroup-data))
2823 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 2824 (when offset
6748645f 2825 (gnus-data-update-list odata offset)))
23f87bed 2826 ;; Find the last element in the list to be spliced into the main
6748645f
LMI
2827 ;; list.
2828 (while (cdr list)
2829 (setq list (cdr list)))
2830 (if (not data)
2831 (progn
2832 (setcdr list gnus-newsgroup-data)
2833 (setq gnus-newsgroup-data ilist)
2834 (when offset
2835 (gnus-data-update-list (cdr list) offset)))
2836 (setcdr list (cdr data))
2837 (setcdr data ilist)
2838 (when offset
2839 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
2840 (setq gnus-newsgroup-data-reverse nil))))
2841
2842(defun gnus-data-remove (article &optional offset)
2843 (let ((data gnus-newsgroup-data))
2844 (if (= (gnus-data-number (car data)) article)
2845 (progn
2846 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
2847 gnus-newsgroup-data-reverse nil)
2848 (when offset
2849 (gnus-data-update-list gnus-newsgroup-data offset)))
2850 (while (cdr data)
2851 (when (= (gnus-data-number (cadr data)) article)
2852 (setcdr data (cddr data))
2853 (when offset
2854 (gnus-data-update-list (cdr data) offset))
2855 (setq data nil
2856 gnus-newsgroup-data-reverse nil))
2857 (setq data (cdr data))))))
2858
2859(defmacro gnus-data-list (backward)
2860 `(if ,backward
2861 (or gnus-newsgroup-data-reverse
2862 (setq gnus-newsgroup-data-reverse
2863 (reverse gnus-newsgroup-data)))
2864 gnus-newsgroup-data))
2865
2866(defun gnus-data-update-list (data offset)
2867 "Add OFFSET to the POS of all data entries in DATA."
6748645f 2868 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
2869 (while data
2870 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
2871 (setq data (cdr data))))
2872
eec82323
LMI
2873(defun gnus-summary-article-pseudo-p (article)
2874 "Say whether this article is a pseudo article or not."
2875 (not (vectorp (gnus-data-header (gnus-data-find article)))))
2876
2877(defmacro gnus-summary-article-sparse-p (article)
2878 "Say whether this article is a sparse article or not."
a8151ef7 2879 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
2880
2881(defmacro gnus-summary-article-ancient-p (article)
2882 "Say whether this article is a sparse article or not."
2883 `(memq ,article gnus-newsgroup-ancient))
2884
2885(defun gnus-article-parent-p (number)
2886 "Say whether this article is a parent or not."
2887 (let ((data (gnus-data-find-list number)))
23f87bed 2888 (and (cdr data) ; There has to be an article after...
eec82323
LMI
2889 (< (gnus-data-level (car data)) ; And it has to have a higher level.
2890 (gnus-data-level (nth 1 data))))))
2891
2892(defun gnus-article-children (number)
2893 "Return a list of all children to NUMBER."
2894 (let* ((data (gnus-data-find-list number))
2895 (level (gnus-data-level (car data)))
2896 children)
2897 (setq data (cdr data))
2898 (while (and data
2899 (= (gnus-data-level (car data)) (1+ level)))
2900 (push (gnus-data-number (car data)) children)
2901 (setq data (cdr data)))
2902 children))
2903
2904(defmacro gnus-summary-skip-intangible ()
2905 "If the current article is intangible, then jump to a different article."
2906 '(let ((to (get-text-property (point) 'gnus-intangible)))
2907 (and to (gnus-summary-goto-subject to))))
2908
2909(defmacro gnus-summary-article-intangible-p ()
2910 "Say whether this article is intangible or not."
2911 '(get-text-property (point) 'gnus-intangible))
2912
2913(defun gnus-article-read-p (article)
2914 "Say whether ARTICLE is read or not."
2915 (not (or (memq article gnus-newsgroup-marked)
23f87bed 2916 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
2917 (memq article gnus-newsgroup-unreads)
2918 (memq article gnus-newsgroup-unselected)
2919 (memq article gnus-newsgroup-dormant))))
2920
2921;; Some summary mode macros.
2922
2923(defmacro gnus-summary-article-number ()
2924 "The article number of the article on the current line.
8f688cb0 2925If there isn't an article number here, then we return the current
eec82323
LMI
2926article number."
2927 '(progn
2928 (gnus-summary-skip-intangible)
2929 (or (get-text-property (point) 'gnus-number)
2930 (gnus-summary-last-subject))))
2931
2932(defmacro gnus-summary-article-header (&optional number)
6748645f 2933 "Return the header of article NUMBER."
eec82323
LMI
2934 `(gnus-data-header (gnus-data-find
2935 ,(or number '(gnus-summary-article-number)))))
2936
2937(defmacro gnus-summary-thread-level (&optional number)
6748645f 2938 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
2939 `(if (and (eq gnus-summary-make-false-root 'dummy)
2940 (get-text-property (point) 'gnus-intangible))
2941 0
2942 (gnus-data-level (gnus-data-find
2943 ,(or number '(gnus-summary-article-number))))))
2944
2945(defmacro gnus-summary-article-mark (&optional number)
6748645f 2946 "Return the mark of article NUMBER."
eec82323
LMI
2947 `(gnus-data-mark (gnus-data-find
2948 ,(or number '(gnus-summary-article-number)))))
2949
2950(defmacro gnus-summary-article-pos (&optional number)
6748645f 2951 "Return the position of the line of article NUMBER."
eec82323
LMI
2952 `(gnus-data-pos (gnus-data-find
2953 ,(or number '(gnus-summary-article-number)))))
2954
2955(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
2956(defmacro gnus-summary-article-subject (&optional number)
2957 "Return current subject string or nil if nothing."
2958 `(let ((headers
2959 ,(if number
2960 `(gnus-data-header (assq ,number gnus-newsgroup-data))
2961 '(gnus-data-header (assq (gnus-summary-article-number)
2962 gnus-newsgroup-data)))))
2963 (and headers
2964 (vectorp headers)
2965 (mail-header-subject headers))))
2966
2967(defmacro gnus-summary-article-score (&optional number)
2968 "Return current article score."
2969 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
2970 gnus-newsgroup-scored))
2971 gnus-summary-default-score 0))
2972
2973(defun gnus-summary-article-children (&optional number)
6748645f 2974 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
2975 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
2976 (level (gnus-data-level (car data)))
2977 l children)
2978 (while (and (setq data (cdr data))
2979 (> (setq l (gnus-data-level (car data))) level))
2980 (and (= (1+ level) l)
2981 (push (gnus-data-number (car data))
2982 children)))
2983 (nreverse children)))
2984
2985(defun gnus-summary-article-parent (&optional number)
6748645f 2986 "Return the article number of the parent of article NUMBER."
eec82323
LMI
2987 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
2988 (gnus-data-list t)))
2989 (level (gnus-data-level (car data))))
2990 (if (zerop level)
2991 () ; This is a root.
2992 ;; We search until we find an article with a level less than
2993 ;; this one. That function has to be the parent.
2994 (while (and (setq data (cdr data))
2995 (not (< (gnus-data-level (car data)) level))))
2996 (and data (gnus-data-number (car data))))))
2997
2998(defun gnus-unread-mark-p (mark)
2999 "Say whether MARK is the unread mark."
3000 (= mark gnus-unread-mark))
3001
3002(defun gnus-read-mark-p (mark)
3003 "Say whether MARK is one of the marks that mark as read.
3004This is all marks except unread, ticked, dormant, and expirable."
3005 (not (or (= mark gnus-unread-mark)
3006 (= mark gnus-ticked-mark)
23f87bed 3007 (= mark gnus-spam-mark)
eec82323
LMI
3008 (= mark gnus-dormant-mark)
3009 (= mark gnus-expirable-mark))))
3010
3011(defmacro gnus-article-mark (number)
6748645f
LMI
3012 "Return the MARK of article NUMBER.
3013This macro should only be used when computing the mark the \"first\"
3014time; i.e., when generating the summary lines. After that,
3015`gnus-summary-article-mark' should be used to examine the
3016marks of articles."
eec82323 3017 `(cond
6748645f 3018 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3019 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3020 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3021 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3022 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3023 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3024 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3025 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3026 gnus-ancient-mark))))
3027
3028;; Saving hidden threads.
3029
eec82323
LMI
3030(defmacro gnus-save-hidden-threads (&rest forms)
3031 "Save hidden threads, eval FORMS, and restore the hidden threads."
3032 (let ((config (make-symbol "config")))
3033 `(let ((,config (gnus-hidden-threads-configuration)))
3034 (unwind-protect
3035 (save-excursion
3036 ,@forms)
3037 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3038(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3039(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3040
107ecebb
AS
3041(defun gnus-data-compute-positions ()
3042 "Compute the positions of all articles."
3043 (setq gnus-newsgroup-data-reverse nil)
3044 (let ((data gnus-newsgroup-data))
3045 (save-excursion
3046 (gnus-save-hidden-threads
3047 (gnus-summary-show-all-threads)
3048 (goto-char (point-min))
3049 (while data
3050 (while (get-text-property (point) 'gnus-intangible)
3051 (forward-line 1))
3052 (gnus-data-set-pos (car data) (+ (point) 3))
3053 (setq data (cdr data))
3054 (forward-line 1))))))
3055
16409b0b
GM
3056(defun gnus-hidden-threads-configuration ()
3057 "Return the current hidden threads configuration."
3058 (save-excursion
3059 (let (config)
3060 (goto-char (point-min))
3061 (while (search-forward "\r" nil t)
3062 (push (1- (point)) config))
3063 config)))
3064
3065(defun gnus-restore-hidden-threads-configuration (config)
3066 "Restore hidden threads configuration from CONFIG."
3067 (save-excursion
3068 (let (point buffer-read-only)
3069 (while (setq point (pop config))
3070 (when (and (< point (point-max))
3071 (goto-char point)
3072 (eq (char-after) ?\n))
3073 (subst-char-in-region point (1+ point) ?\n ?\r))))))
3074
eec82323
LMI
3075;; Various summary mode internalish functions.
3076
3077(defun gnus-mouse-pick-article (e)
3078 (interactive "e")
3079 (mouse-set-point e)
3080 (gnus-summary-next-page nil t))
3081
3082(defun gnus-summary-set-display-table ()
16409b0b
GM
3083 "Change the display table.
3084Odd characters have a tendency to mess
3085up nicely formatted displays - we make all possible glyphs
3086display only a single character."
eec82323
LMI
3087
3088 ;; We start from the standard display table, if any.
3089 (let ((table (or (copy-sequence standard-display-table)
3090 (make-display-table)))
3091 (i 32))
3092 ;; Nix out all the control chars...
3093 (while (>= (setq i (1- i)) 0)
3094 (aset table i [??]))
23f87bed 3095 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323
LMI
3096 ;; selective display).
3097 (aset table ?\n nil)
3098 (aset table ?\r nil)
6748645f
LMI
3099 ;; We keep TAB as well.
3100 (aset table ?\t nil)
eec82323
LMI
3101 ;; We nix out any glyphs over 126 that are not set already.
3102 (let ((i 256))
3103 (while (>= (setq i (1- i)) 127)
3104 ;; Only modify if the entry is nil.
3105 (unless (aref table i)
3106 (aset table i [??]))))
3107 (setq buffer-display-table table)))
3108
23f87bed
MB
3109(defun gnus-summary-set-article-display-arrow (pos)
3110 "Update the overlay arrow to point to line at position POS."
3111 (when (and gnus-summary-display-arrow
3112 (boundp 'overlay-arrow-position)
3113 (boundp 'overlay-arrow-string))
3114 (save-excursion
3115 (goto-char pos)
3116 (beginning-of-line)
3117 (unless overlay-arrow-position
3118 (setq overlay-arrow-position (make-marker)))
3119 (setq overlay-arrow-string "=>"
3120 overlay-arrow-position (set-marker overlay-arrow-position
3121 (point)
3122 (current-buffer))))))
3123
eec82323
LMI
3124(defun gnus-summary-setup-buffer (group)
3125 "Initialize summary buffer."
23f87bed
MB
3126 (let ((buffer (gnus-summary-buffer-name group))
3127 (dead-name (concat "*Dead Summary "
3128 (gnus-group-decoded-name group) "*")))
3129 ;; If a dead summary buffer exists, we kill it.
3130 (when (gnus-buffer-live-p dead-name)
3131 (gnus-kill-buffer dead-name))
eec82323
LMI
3132 (if (get-buffer buffer)
3133 (progn
3134 (set-buffer buffer)
3135 (setq gnus-summary-buffer (current-buffer))
3136 (not gnus-newsgroup-prepared))
3137 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3138 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3139 (gnus-summary-mode group)
3140 (when gnus-carpal
3141 (gnus-carpal-setup-buffer 'summary))
3142 (unless gnus-single-article-buffer
3143 (make-local-variable 'gnus-article-buffer)
3144 (make-local-variable 'gnus-article-current)
3145 (make-local-variable 'gnus-original-article-buffer))
3146 (setq gnus-newsgroup-name group)
23f87bed
MB
3147 ;; Set any local variables in the group parameters.
3148 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3149 t)))
3150
3151(defun gnus-set-global-variables ()
16409b0b
GM
3152 "Set the global equivalents of the buffer-local variables.
3153They are set to the latest values they had. These reflect the summary
3154buffer that was in action when the last article was fetched."
eec82323
LMI
3155 (when (eq major-mode 'gnus-summary-mode)
3156 (setq gnus-summary-buffer (current-buffer))
3157 (let ((name gnus-newsgroup-name)
3158 (marked gnus-newsgroup-marked)
23f87bed 3159 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3160 (unread gnus-newsgroup-unreads)
3161 (headers gnus-current-headers)
3162 (data gnus-newsgroup-data)
3163 (summary gnus-summary-buffer)
3164 (article-buffer gnus-article-buffer)
3165 (original gnus-original-article-buffer)
3166 (gac gnus-article-current)
3167 (reffed gnus-reffed-article-number)
16409b0b 3168 (score-file gnus-current-score-file)
23f87bed
MB
3169 (default-charset gnus-newsgroup-charset)
3170 vlist)
3171 (let ((locals gnus-newsgroup-variables))
3172 (while locals
3173 (if (consp (car locals))
3174 (push (eval (caar locals)) vlist)
3175 (push (eval (car locals)) vlist))
3176 (setq locals (cdr locals)))
3177 (setq vlist (nreverse vlist)))
eec82323
LMI
3178 (save-excursion
3179 (set-buffer gnus-group-buffer)
6748645f
LMI
3180 (setq gnus-newsgroup-name name
3181 gnus-newsgroup-marked marked
23f87bed 3182 gnus-newsgroup-spam-marked spam
6748645f
LMI
3183 gnus-newsgroup-unreads unread
3184 gnus-current-headers headers
3185 gnus-newsgroup-data data
3186 gnus-article-current gac
3187 gnus-summary-buffer summary
3188 gnus-article-buffer article-buffer
3189 gnus-original-article-buffer original
3190 gnus-reffed-article-number reffed
16409b0b
GM
3191 gnus-current-score-file score-file
3192 gnus-newsgroup-charset default-charset)
23f87bed
MB
3193 (let ((locals gnus-newsgroup-variables))
3194 (while locals
3195 (if (consp (car locals))
3196 (set (caar locals) (pop vlist))
3197 (set (car locals) (pop vlist)))
3198 (setq locals (cdr locals))))
eec82323
LMI
3199 ;; The article buffer also has local variables.
3200 (when (gnus-buffer-live-p gnus-article-buffer)
3201 (set-buffer gnus-article-buffer)
3202 (setq gnus-summary-buffer summary))))))
3203
3204(defun gnus-summary-article-unread-p (article)
3205 "Say whether ARTICLE is unread or not."
3206 (memq article gnus-newsgroup-unreads))
3207
3208(defun gnus-summary-first-article-p (&optional article)
3209 "Return whether ARTICLE is the first article in the buffer."
3210 (if (not (setq article (or article (gnus-summary-article-number))))
3211 nil
3212 (eq article (caar gnus-newsgroup-data))))
3213
3214(defun gnus-summary-last-article-p (&optional article)
3215 "Return whether ARTICLE is the last article in the buffer."
3216 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3217 ;; All non-existent numbers are the last article. :-)
3218 t
eec82323
LMI
3219 (not (cdr (gnus-data-find-list article)))))
3220
3221(defun gnus-make-thread-indent-array ()
3222 (let ((n 200))
3223 (unless (and gnus-thread-indent-array
3224 (= gnus-thread-indent-level gnus-thread-indent-array-level))
3225 (setq gnus-thread-indent-array (make-vector 201 "")
3226 gnus-thread-indent-array-level gnus-thread-indent-level)
3227 (while (>= n 0)
3228 (aset gnus-thread-indent-array n
3229 (make-string (* n gnus-thread-indent-level) ? ))
3230 (setq n (1- n))))))
3231
3232(defun gnus-update-summary-mark-positions ()
3233 "Compute where the summary marks are to go."
3234 (save-excursion
6748645f 3235 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3236 (set-buffer gnus-summary-buffer))
5153a47a
MB
3237 (let ((spec gnus-summary-line-format-spec)
3238 pos)
eec82323
LMI
3239 (save-excursion
3240 (gnus-set-work-buffer)
5153a47a
MB
3241 (let ((gnus-tmp-unread ?Z)
3242 (gnus-replied-mark ?Z)
3243 (gnus-score-below-mark ?Z)
3244 (gnus-score-over-mark ?Z)
3245 (gnus-undownloaded-mark ?Z)
3246 (gnus-summary-line-format-spec spec)
54506618 3247 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3248 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3249 case-fold-search ignores)
3250 ;; Here, all marks are bound to Z.
3251 (gnus-summary-insert-line header
3252 0 nil t gnus-tmp-unread t nil "" nil 1)
3253 (goto-char (point-min))
3254 ;; Memorize the positions of the same characters as dummy marks.
3255 (while (re-search-forward "[A-D]" nil t)
3256 (push (point) ignores))
54506618 3257 (erase-buffer)
5153a47a
MB
3258 ;; We use A-D as dummy marks in order to know column positions
3259 ;; where marks should be inserted.
3260 (setq gnus-tmp-unread ?A
3261 gnus-replied-mark ?B
3262 gnus-score-below-mark ?C
3263 gnus-score-over-mark ?C
3264 gnus-undownloaded-mark ?D)
3265 (gnus-summary-insert-line header
3266 0 nil t gnus-tmp-unread t nil "" nil 1)
3267 ;; Ignore characters which aren't dummy marks.
3268 (dolist (p ignores)
3269 (delete-region (goto-char (1- p)) p)
3270 (insert ?Z))
eec82323 3271 (goto-char (point-min))
7c3bb5a5 3272 (setq pos (list (cons 'unread
5153a47a 3273 (and (search-forward "A" nil t)
7c3bb5a5 3274 (- (point) (point-min) 1)))))
eec82323 3275 (goto-char (point-min))
5153a47a 3276 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3277 (- (point) (point-min) 1)))
eec82323
LMI
3278 pos)
3279 (goto-char (point-min))
5153a47a 3280 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3281 (- (point) (point-min) 1)))
6748645f
LMI
3282 pos)
3283 (goto-char (point-min))
5153a47a 3284 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3285 (- (point) (point-min) 1)))
eec82323
LMI
3286 pos)))
3287 (setq gnus-summary-mark-positions pos))))
3288
3289(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3290 "Insert a dummy root in the summary buffer."
3291 (beginning-of-line)
3292 (gnus-add-text-properties
3293 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3294 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3295
23f87bed
MB
3296(defun gnus-summary-extract-address-component (from)
3297 (or (car (funcall gnus-extract-address-components from))
3298 from))
3299
3300(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3301 (let ((mail-parse-charset gnus-newsgroup-charset)
3302 ; Is it really necessary to do this next part for each summary line?
3303 ; Luckily, doesn't seem to slow things down much.
16409b0b
GM
3304 (mail-parse-ignored-charsets
3305 (save-excursion (set-buffer gnus-summary-buffer)
3306 gnus-newsgroup-ignored-charsets)))
23f87bed
MB
3307 (or
3308 (and gnus-ignored-from-addresses
3309 (string-match gnus-ignored-from-addresses gnus-tmp-from)
3310 (let ((extra-headers (mail-header-extra header))
3311 to
3312 newsgroups)
3313 (cond
3314 ((setq to (cdr (assq 'To extra-headers)))
3315 (concat "-> "
3316 (inline
3317 (gnus-summary-extract-address-component
3318 (funcall gnus-decode-encoded-word-function to)))))
3319 ((setq newsgroups (cdr (assq 'Newsgroups extra-headers)))
3320 (concat "=> " newsgroups)))))
3321 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3322
eec82323
LMI
3323(defun gnus-summary-insert-line (gnus-tmp-header
3324 gnus-tmp-level gnus-tmp-current
23f87bed 3325 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3326 gnus-tmp-expirable gnus-tmp-subject-or-nil
3327 &optional gnus-tmp-dummy gnus-tmp-score
3328 gnus-tmp-process)
3329 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3330 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3331 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3332 (gnus-tmp-score-char
3333 (if (or (null gnus-summary-default-score)
3334 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3335 gnus-summary-zcore-fuzz))
23f87bed 3336 ? ;Whitespace
eec82323
LMI
3337 (if (< gnus-tmp-score gnus-summary-default-score)
3338 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3339 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3340 (gnus-tmp-replied
3341 (cond (gnus-tmp-process gnus-process-mark)
3342 ((memq gnus-tmp-current gnus-newsgroup-cached)
3343 gnus-cached-mark)
3344 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3345 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3346 gnus-forwarded-mark)
eec82323
LMI
3347 ((memq gnus-tmp-current gnus-newsgroup-saved)
3348 gnus-saved-mark)
23f87bed
MB
3349 ((memq gnus-tmp-number gnus-newsgroup-recent)
3350 gnus-recent-mark)
3351 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3352 gnus-unseen-mark)
3353 (t gnus-no-mark)))
3354 (gnus-tmp-downloaded
3355 (cond (undownloaded
3356 gnus-undownloaded-mark)
3357 (gnus-newsgroup-agentized
3358 gnus-downloaded-mark)
3359 (t
3360 gnus-no-mark)))
eec82323
LMI
3361 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3362 (gnus-tmp-name
3363 (cond
3364 ((string-match "<[^>]+> *$" gnus-tmp-from)
3365 (let ((beg (match-beginning 0)))
23f87bed
MB
3366 (or (and (string-match "^\".+\"" gnus-tmp-from)
3367 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3368 (substring gnus-tmp-from 0 beg))))
3369 ((string-match "(.+)" gnus-tmp-from)
3370 (substring gnus-tmp-from
3371 (1+ (match-beginning 0)) (1- (match-end 0))))
3372 (t gnus-tmp-from)))
3373 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3374 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3375 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
3376 (buffer-read-only nil))
3377 (when (string= gnus-tmp-name "")
3378 (setq gnus-tmp-name gnus-tmp-from))
3379 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3380 (setq gnus-tmp-lines -1))
3381 (if (= gnus-tmp-lines -1)
3382 (setq gnus-tmp-lines "?")
3383 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
3384 (gnus-put-text-property
eec82323
LMI
3385 (point)
3386 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 3387 'gnus-number gnus-tmp-number)
eec82323
LMI
3388 (when (gnus-visual-p 'summary-highlight 'highlight)
3389 (forward-line -1)
6748645f 3390 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3391 (forward-line 1))))
3392
3393(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3394 "Update summary line after change."
eec82323
LMI
3395 (when (and gnus-summary-default-score
3396 (not gnus-summary-inhibit-highlight))
3397 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3398 (article (gnus-summary-article-number))
3399 (score (gnus-summary-article-score article)))
3400 (unless dont-update
3401 (if (and gnus-summary-mark-below
3402 (< (gnus-summary-article-score)
3403 gnus-summary-mark-below))
3404 ;; This article has a low score, so we mark it as read.
3405 (when (memq article gnus-newsgroup-unreads)
3406 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3407 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3408 ;; This article was previously marked as read on account
3409 ;; of a low score, but now it has risen, so we mark it as
3410 ;; unread.
3411 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3412 (gnus-summary-update-mark
3413 (if (or (null gnus-summary-default-score)
3414 (<= (abs (- score gnus-summary-default-score))
3415 gnus-summary-zcore-fuzz))
23f87bed 3416 ? ;Whitespace
eec82323
LMI
3417 (if (< score gnus-summary-default-score)
3418 gnus-score-below-mark gnus-score-over-mark))
3419 'score))
3420 ;; Do visual highlighting.
3421 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3422 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3423
3424(defvar gnus-tmp-new-adopts nil)
3425
3426(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3427 "Return the number of articles in THREAD.
3428This may be 0 in some cases -- if none of the articles in
3429the thread are to be displayed."
3430 (let* ((number
23f87bed 3431 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3432 (cond
3433 ((not (listp thread))
3434 1)
3435 ((and (consp thread) (cdr thread))
3436 (apply
3437 '+ 1 (mapcar
3438 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3439 ((null thread)
3440 1)
3441 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3442 1)
3443 (t 0))))
3444 (when (and level (zerop level) gnus-tmp-new-adopts)
3445 (incf number
3446 (apply '+ (mapcar
3447 'gnus-summary-number-of-articles-in-thread
3448 gnus-tmp-new-adopts))))
3449 (if char
3450 (if (> number 1) gnus-not-empty-thread-mark
3451 gnus-empty-thread-mark)
3452 number)))
3453
23f87bed
MB
3454(defsubst gnus-summary-line-message-size (head)
3455 "Return pretty-printed version of message size.
3456This function is intended to be used in
3457`gnus-summary-line-format-alist'."
3458 (let ((c (or (mail-header-chars head) -1)))
3459 (cond ((< c 0) "n/a") ; chars not available
3460 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3461 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3462 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3463 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3464
3465
eec82323
LMI
3466(defun gnus-summary-set-local-parameters (group)
3467 "Go through the local params of GROUP and set all variable specs in that list."
3468 (let ((params (gnus-group-find-parameter group))
23f87bed 3469 (vars '(quit-config)) ; Ignore quit-config.
eec82323
LMI
3470 elem)
3471 (while params
3472 (setq elem (car params)
3473 params (cdr params))
3474 (and (consp elem) ; Has to be a cons.
3475 (consp (cdr elem)) ; The cdr has to be a list.
3476 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3477 (not (memq (car elem) vars))
eec82323 3478 (ignore-errors ; So we set it.
23f87bed 3479 (push (car elem) vars)
eec82323
LMI
3480 (make-local-variable (car elem))
3481 (set (car elem) (eval (nth 1 elem))))))))
3482
3483(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3484 kill-buffer no-display backward
3485 select-articles)
eec82323
LMI
3486 "Start reading news in newsgroup GROUP.
3487If SHOW-ALL is non-nil, already read articles are also listed.
3488If NO-ARTICLE is non-nil, no article is selected initially.
3489If NO-DISPLAY, don't generate a summary buffer."
3490 (let (result)
3491 (while (and group
3492 (null (setq result
3493 (let ((gnus-auto-select-next nil))
6748645f
LMI
3494 (or (gnus-summary-read-group-1
3495 group show-all no-article
3496 kill-buffer no-display
3497 select-articles)
3498 (setq show-all nil
16409b0b 3499 select-articles nil)))))
eec82323
LMI
3500 (eq gnus-auto-select-next 'quietly))
3501 (set-buffer gnus-group-buffer)
6748645f
LMI
3502 ;; The entry function called above goes to the next
3503 ;; group automatically, so we go two groups back
3504 ;; if we are searching for the previous group.
3505 (when backward
3506 (gnus-group-prev-unread-group 2))
eec82323
LMI
3507 (if (not (equal group (gnus-group-group-name)))
3508 (setq group (gnus-group-group-name))
3509 (setq group nil)))
3510 result))
3511
3512(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3513 kill-buffer no-display
3514 &optional select-articles)
eec82323 3515 ;; Killed foreign groups can't be entered.
23f87bed
MB
3516 ;; (when (and (not (gnus-group-native-p group))
3517 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3518 ;; (error "Dead non-native groups can't be entered"))
3519 (gnus-message 5 "Retrieving newsgroup: %s..."
3520 (gnus-group-decoded-name group))
eec82323
LMI
3521 (let* ((new-group (gnus-summary-setup-buffer group))
3522 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3523 (did-select (and new-group (gnus-select-newsgroup
3524 group show-all select-articles))))
eec82323
LMI
3525 (cond
3526 ;; This summary buffer exists already, so we just select it.
3527 ((not new-group)
3528 (gnus-set-global-variables)
3529 (when kill-buffer
3530 (gnus-kill-or-deaden-summary kill-buffer))
3531 (gnus-configure-windows 'summary 'force)
3532 (gnus-set-mode-line 'summary)
3533 (gnus-summary-position-point)
3534 (message "")
3535 t)
3536 ;; We couldn't select this group.
3537 ((null did-select)
3538 (when (and (eq major-mode 'gnus-summary-mode)
3539 (not (equal (current-buffer) kill-buffer)))
3540 (kill-buffer (current-buffer))
3541 (if (not quit-config)
3542 (progn
6748645f
LMI
3543 ;; Update the info -- marks might need to be removed,
3544 ;; for instance.
3545 (gnus-summary-update-info)
eec82323
LMI
3546 (set-buffer gnus-group-buffer)
3547 (gnus-group-jump-to-group group)
3548 (gnus-group-next-unread-group 1))
3549 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3550 (let ((grpinfo (gnus-get-info group)))
3551 (if (null (gnus-info-read grpinfo))
3552 (gnus-message 3 "Group %s contains no messages"
3553 (gnus-group-decoded-name group))
3554 (gnus-message 3 "Can't select group")))
eec82323
LMI
3555 nil)
3556 ;; The user did a `C-g' while prompting for number of articles,
3557 ;; so we exit this group.
3558 ((eq did-select 'quit)
3559 (and (eq major-mode 'gnus-summary-mode)
3560 (not (equal (current-buffer) kill-buffer))
3561 (kill-buffer (current-buffer)))
3562 (when kill-buffer
3563 (gnus-kill-or-deaden-summary kill-buffer))
3564 (if (not quit-config)
3565 (progn
3566 (set-buffer gnus-group-buffer)
3567 (gnus-group-jump-to-group group)
3568 (gnus-group-next-unread-group 1)
3569 (gnus-configure-windows 'group 'force))
3570 (gnus-handle-ephemeral-exit quit-config))
3571 ;; Finally signal the quit.
3572 (signal 'quit nil))
3573 ;; The group was successfully selected.
3574 (t
3575 (gnus-set-global-variables)
3576 ;; Save the active value in effect when the group was entered.
3577 (setq gnus-newsgroup-active
3578 (gnus-copy-sequence
3579 (gnus-active gnus-newsgroup-name)))
3580 ;; You can change the summary buffer in some way with this hook.
6748645f 3581 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3582 (when (memq 'summary (gnus-update-format-specifications
3583 nil 'summary 'summary-mode 'summary-dummy))
3584 ;; The format specification for the summary line was updated,
3585 ;; so we need to update the mark positions as well.
3586 (gnus-update-summary-mark-positions))
eec82323
LMI
3587 ;; Do score processing.
3588 (when gnus-use-scoring
3589 (gnus-possibly-score-headers))
3590 ;; Check whether to fill in the gaps in the threads.
3591 (when gnus-build-sparse-threads
3592 (gnus-build-sparse-threads))
3593 ;; Find the initial limit.
3594 (if gnus-show-threads
3595 (if show-all
3596 (let ((gnus-newsgroup-dormant nil))
3597 (gnus-summary-initial-limit show-all))
3598 (gnus-summary-initial-limit show-all))
8f688cb0 3599 ;; When unthreaded, all articles are always shown.
eec82323
LMI
3600 (setq gnus-newsgroup-limit
3601 (mapcar
3602 (lambda (header) (mail-header-number header))
3603 gnus-newsgroup-headers)))
3604 ;; Generate the summary buffer.
3605 (unless no-display
3606 (gnus-summary-prepare))
3607 (when gnus-use-trees
3608 (gnus-tree-open group)
3609 (setq gnus-summary-highlight-line-function
3610 'gnus-tree-highlight-article))
3611 ;; If the summary buffer is empty, but there are some low-scored
3612 ;; articles or some excluded dormants, we include these in the
3613 ;; buffer.
3614 (when (and (zerop (buffer-size))
3615 (not no-display))
3616 (cond (gnus-newsgroup-dormant
3617 (gnus-summary-limit-include-dormant))
3618 ((and gnus-newsgroup-scored show-all)
3619 (gnus-summary-limit-include-expunged t))))
3620 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3621 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3622 (if (and (zerop (buffer-size))
3623 (not no-display))
3624 (progn
3625 ;; This newsgroup is empty.
3626 (gnus-summary-catchup-and-exit nil t)
3627 (gnus-message 6 "No unread news")
3628 (when kill-buffer
3629 (gnus-kill-or-deaden-summary kill-buffer))
3630 ;; Return nil from this function.
3631 nil)
3632 ;; Hide conversation thread subtrees. We cannot do this in
3633 ;; gnus-summary-prepare-hook since kill processing may not
3634 ;; work with hidden articles.
23f87bed 3635 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3636 (when kill-buffer
3637 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3638 (gnus-summary-auto-select-subject)
eec82323
LMI
3639 ;; Show first unread article if requested.
3640 (if (and (not no-article)
3641 (not no-display)
3642 gnus-newsgroup-unreads
3643 gnus-auto-select-first)
16409b0b
GM
3644 (progn
3645 (gnus-configure-windows 'summary)
23f87bed
MB
3646 (let ((art (gnus-summary-article-number)))
3647 (unless (and (not gnus-plugged)
3648 (or (memq art gnus-newsgroup-undownloaded)
3649 (memq art gnus-newsgroup-downloadable)))
3650 (gnus-summary-goto-article art))))
3651 ;; Don't select any articles.
eec82323 3652 (gnus-summary-position-point)
6748645f
LMI
3653 (gnus-configure-windows 'summary 'force)
3654 (gnus-set-mode-line 'summary))
23f87bed
MB
3655 (when (and gnus-auto-center-group
3656 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
3657 ;; Gotta use windows, because recenter does weird stuff if
3658 ;; the current buffer ain't the displayed window.
3659 (let ((owin (selected-window)))
3660 (select-window (get-buffer-window gnus-group-buffer t))
3661 (when (gnus-group-goto-group group)
3662 (recenter))
3663 (select-window owin)))
3664 ;; Mark this buffer as "prepared".
3665 (setq gnus-newsgroup-prepared t)
6748645f 3666 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
3667 (unless (gnus-ephemeral-group-p group)
3668 (gnus-group-update-group group))
eec82323
LMI
3669 t)))))
3670
23f87bed
MB
3671(defun gnus-summary-auto-select-subject ()
3672 "Select the subject line on initial group entry."
3673 (goto-char (point-min))
3674 (cond
3675 ((eq gnus-auto-select-subject 'best)
3676 (gnus-summary-best-unread-subject))
3677 ((eq gnus-auto-select-subject 'unread)
3678 (gnus-summary-first-unread-subject))
3679 ((eq gnus-auto-select-subject 'unseen)
3680 (gnus-summary-first-unseen-subject))
3681 ((eq gnus-auto-select-subject 'unseen-or-unread)
3682 (gnus-summary-first-unseen-or-unread-subject))
3683 ((eq gnus-auto-select-subject 'first)
3684 ;; Do nothing.
3685 )
3686 ((functionp gnus-auto-select-subject)
3687 (funcall gnus-auto-select-subject))))
3688
eec82323
LMI
3689(defun gnus-summary-prepare ()
3690 "Generate the summary buffer."
3691 (interactive)
3692 (let ((buffer-read-only nil))
3693 (erase-buffer)
3694 (setq gnus-newsgroup-data nil
3695 gnus-newsgroup-data-reverse nil)
6748645f 3696 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
3697 ;; Generate the buffer, either with threads or without.
3698 (when gnus-newsgroup-headers
3699 (gnus-summary-prepare-threads
3700 (if gnus-show-threads
3701 (gnus-sort-gathered-threads
3702 (funcall gnus-summary-thread-gathering-function
3703 (gnus-sort-threads
3704 (gnus-cut-threads (gnus-make-threads)))))
3705 ;; Unthreaded display.
3706 (gnus-sort-articles gnus-newsgroup-headers))))
3707 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
3708 ;; Call hooks for modifying summary buffer.
3709 (goto-char (point-min))
6748645f 3710 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
3711
3712(defsubst gnus-general-simplify-subject (subject)
23f87bed 3713 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
3714 (setq subject
3715 (cond
3716 ;; Truncate the subject.
6748645f
LMI
3717 (gnus-simplify-subject-functions
3718 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
3719 ((numberp gnus-summary-gather-subject-limit)
3720 (setq subject (gnus-simplify-subject-re subject))
3721 (if (> (length subject) gnus-summary-gather-subject-limit)
3722 (substring subject 0 gnus-summary-gather-subject-limit)
3723 subject))
3724 ;; Fuzzily simplify it.
3725 ((eq 'fuzzy gnus-summary-gather-subject-limit)
3726 (gnus-simplify-subject-fuzzy subject))
3727 ;; Just remove the leading "Re:".
3728 (t
3729 (gnus-simplify-subject-re subject))))
3730
3731 (if (and gnus-summary-gather-exclude-subject
3732 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 3733 nil ; This article shouldn't be gathered
eec82323
LMI
3734 subject))
3735
3736(defun gnus-summary-simplify-subject-query ()
3737 "Query where the respool algorithm would put this article."
3738 (interactive)
eec82323
LMI
3739 (gnus-summary-select-article)
3740 (message (gnus-general-simplify-subject (gnus-summary-article-subject))))
3741
3742(defun gnus-gather-threads-by-subject (threads)
3743 "Gather threads by looking at Subject headers."
3744 (if (not gnus-summary-make-false-root)
3745 threads
3746 (let ((hashtb (gnus-make-hashtable 1024))
3747 (prev threads)
3748 (result threads)
3749 subject hthread whole-subject)
3750 (while threads
3751 (setq subject (gnus-general-simplify-subject
3752 (setq whole-subject (mail-header-subject
3753 (caar threads)))))
3754 (when subject
3755 (if (setq hthread (gnus-gethash subject hashtb))
3756 (progn
3757 ;; We enter a dummy root into the thread, if we
3758 ;; haven't done that already.
3759 (unless (stringp (caar hthread))
3760 (setcar hthread (list whole-subject (car hthread))))
3761 ;; We add this new gathered thread to this gathered
3762 ;; thread.
3763 (setcdr (car hthread)
3764 (nconc (cdar hthread) (list (car threads))))
3765 ;; Remove it from the list of threads.
3766 (setcdr prev (cdr threads))
3767 (setq threads prev))
3768 ;; Enter this thread into the hash table.
23f87bed
MB
3769 (gnus-sethash subject
3770 (if gnus-summary-make-false-root-always
3771 (progn
3772 ;; If you want a dummy root above all
3773 ;; threads...
3774 (setcar threads (list whole-subject
3775 (car threads)))
3776 threads)
3777 threads)
3778 hashtb)))
eec82323
LMI
3779 (setq prev threads)
3780 (setq threads (cdr threads)))
3781 result)))
3782
3783(defun gnus-gather-threads-by-references (threads)
3784 "Gather threads by looking at References headers."
3785 (let ((idhashtb (gnus-make-hashtable 1024))
3786 (thhashtb (gnus-make-hashtable 1024))
3787 (prev threads)
3788 (result threads)
3789 ids references id gthread gid entered ref)
3790 (while threads
3791 (when (setq references (mail-header-references (caar threads)))
3792 (setq id (mail-header-id (caar threads))
23f87bed 3793 ids (inline (gnus-split-references references))
eec82323
LMI
3794 entered nil)
3795 (while (setq ref (pop ids))
3796 (setq ids (delete ref ids))
3797 (if (not (setq gid (gnus-gethash ref idhashtb)))
3798 (progn
3799 (gnus-sethash ref id idhashtb)
3800 (gnus-sethash id threads thhashtb))
3801 (setq gthread (gnus-gethash gid thhashtb))
3802 (unless entered
3803 ;; We enter a dummy root into the thread, if we
3804 ;; haven't done that already.
3805 (unless (stringp (caar gthread))
3806 (setcar gthread (list (mail-header-subject (caar gthread))
3807 (car gthread))))
3808 ;; We add this new gathered thread to this gathered
3809 ;; thread.
3810 (setcdr (car gthread)
3811 (nconc (cdar gthread) (list (car threads)))))
3812 ;; Add it into the thread hash table.
3813 (gnus-sethash id gthread thhashtb)
3814 (setq entered t)
3815 ;; Remove it from the list of threads.
3816 (setcdr prev (cdr threads))
3817 (setq threads prev))))
3818 (setq prev threads)
3819 (setq threads (cdr threads)))
3820 result))
3821
3822(defun gnus-sort-gathered-threads (threads)
16409b0b 3823 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
3824 (let ((result threads))
3825 (while threads
3826 (when (stringp (caar threads))
3827 (setcdr (car threads)
16409b0b 3828 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
3829 (setq threads (cdr threads)))
3830 result))
3831
3832(defun gnus-thread-loop-p (root thread)
3833 "Say whether ROOT is in THREAD."
3834 (let ((stack (list thread))
3835 (infloop 0)
3836 th)
3837 (while (setq thread (pop stack))
3838 (setq th (cdr thread))
3839 (while (and th
3840 (not (eq (caar th) root)))
3841 (pop th))
3842 (if th
3843 ;; We have found a loop.
3844 (let (ref-dep)
3845 (setcdr thread (delq (car th) (cdr thread)))
3846 (if (boundp (setq ref-dep (intern "none"
3847 gnus-newsgroup-dependencies)))
3848 (setcdr (symbol-value ref-dep)
3849 (nconc (cdr (symbol-value ref-dep))
3850 (list (car th))))
3851 (set ref-dep (list nil (car th))))
3852 (setq infloop 1
3853 stack nil))
3854 ;; Push all the subthreads onto the stack.
3855 (push (cdr thread) stack)))
3856 infloop))
3857
3858(defun gnus-make-threads ()
3859 "Go through the dependency hashtb and find the roots. Return all threads."
3860 (let (threads)
3861 (while (catch 'infloop
3862 (mapatoms
3863 (lambda (refs)
3864 ;; Deal with self-referencing References loops.
3865 (when (and (car (symbol-value refs))
3866 (not (zerop
3867 (apply
3868 '+
3869 (mapcar
3870 (lambda (thread)
3871 (gnus-thread-loop-p
3872 (car (symbol-value refs)) thread))
3873 (cdr (symbol-value refs)))))))
3874 (setq threads nil)
3875 (throw 'infloop t))
3876 (unless (car (symbol-value refs))
23f87bed
MB
3877 ;; These threads do not refer back to any other
3878 ;; articles, so they're roots.
eec82323
LMI
3879 (setq threads (append (cdr (symbol-value refs)) threads))))
3880 gnus-newsgroup-dependencies)))
3881 threads))
3882
6748645f 3883;; Build the thread tree.
16409b0b 3884(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
3885 "Enter HEADER into the DEPENDENCIES table if it is not already there.
3886
3887If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
3888if it was already present.
3889
3890If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
3891will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
3892Message-IDs will be renamed to a unique Message-ID before being
3893entered.
6748645f
LMI
3894
3895Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
3896 (let* ((id (mail-header-id header))
3897 (id-dep (and id (intern id dependencies)))
23f87bed 3898 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
3899 ;; Enter this `header' in the `dependencies' table.
3900 (cond
3901 ((not id-dep)
3902 (setq header nil))
3903 ;; The first two cases do the normal part: enter a new `header'
3904 ;; in the `dependencies' table.
3905 ((not (boundp id-dep))
3906 (set id-dep (list header)))
3907 ((null (car (symbol-value id-dep)))
3908 (setcar (symbol-value id-dep) header))
3909
3910 ;; From here the `header' was already present in the
3911 ;; `dependencies' table.
3912 (force-new
3913 ;; Overrides an existing entry;
3914 ;; just set the header part of the entry.
23f87bed
MB
3915 (setcar (symbol-value id-dep) header)
3916 (setq replaced t))
6748645f
LMI
3917
3918 ;; Renames the existing `header' to a unique Message-ID.
3919 ((not gnus-summary-ignore-duplicates)
3920 ;; An article with this Message-ID has already been seen.
3921 ;; We rename the Message-ID.
3922 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
3923 (list header))
3924 (mail-header-set-id header id))
3925
3926 ;; The last case ignores an existing entry, except it adds any
3927 ;; additional Xrefs (in case the two articles came from different
3928 ;; servers.
3929 ;; Also sets `header' to `nil' meaning that the `dependencies'
3930 ;; table was *not* modified.
3931 (t
3932 (mail-header-set-xref
3933 (car (symbol-value id-dep))
3934 (concat (or (mail-header-xref (car (symbol-value id-dep)))
3935 "")
3936 (or (mail-header-xref header) "")))
3937 (setq header nil)))
3938
23f87bed
MB
3939 (when (and header (not replaced))
3940 ;; First check that we are not creating a References loop.
3941 (setq parent-id (gnus-parent-id (mail-header-references header)))
3942 (setq ref parent-id)
6748645f
LMI
3943 (while (and ref
3944 (setq ref-dep (intern-soft ref dependencies))
3945 (boundp ref-dep)
3946 (setq ref-header (car (symbol-value ref-dep))))
3947 (if (string= id ref)
3948 ;; Yuk! This is a reference loop. Make the article be a
3949 ;; root article.
3950 (progn
3951 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
3952 (setq ref nil)
3953 (setq parent-id nil))
6748645f 3954 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 3955 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
3956 (if (boundp ref-dep)
3957 (setcdr (symbol-value ref-dep)
3958 (nconc (cdr (symbol-value ref-dep))
3959 (list (symbol-value id-dep))))
3960 (set ref-dep (list nil (symbol-value id-dep)))))
3961 header))
3962
23f87bed
MB
3963(defun gnus-extract-message-id-from-in-reply-to (string)
3964 (if (string-match "<[^>]+>" string)
3965 (substring string (match-beginning 0) (match-end 0))
3966 nil))
3967
eec82323
LMI
3968(defun gnus-build-sparse-threads ()
3969 (let ((headers gnus-newsgroup-headers)
16409b0b 3970 (mail-parse-charset gnus-newsgroup-charset)
6748645f 3971 (gnus-summary-ignore-duplicates t)
eec82323 3972 header references generation relations
6748645f 3973 subject child end new-child date)
eec82323
LMI
3974 ;; First we create an alist of generations/relations, where
3975 ;; generations is how much we trust the relation, and the relation
3976 ;; is parent/child.
3977 (gnus-message 7 "Making sparse threads...")
3978 (save-excursion
3979 (nnheader-set-temp-buffer " *gnus sparse threads*")
3980 (while (setq header (pop headers))
3981 (when (and (setq references (mail-header-references header))
3982 (not (string= references "")))
3983 (insert references)
3984 (setq child (mail-header-id header)
6748645f
LMI
3985 subject (mail-header-subject header)
3986 date (mail-header-date header)
3987 generation 0)
eec82323
LMI
3988 (while (search-backward ">" nil t)
3989 (setq end (1+ (point)))
3990 (when (search-backward "<" nil t)
6748645f 3991 (setq new-child (buffer-substring (point) end))
eec82323 3992 (push (list (incf generation)
6748645f
LMI
3993 child (setq child new-child)
3994 subject date)
eec82323 3995 relations)))
6748645f
LMI
3996 (when child
3997 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
3998 (erase-buffer)))
3999 (kill-buffer (current-buffer)))
4000 ;; Sort over trustworthiness.
6748645f
LMI
4001 (mapcar
4002 (lambda (relation)
4003 (when (gnus-dependencies-add-header
4004 (make-full-mail-header
4005 gnus-reffed-article-number
4006 (nth 3 relation) "" (or (nth 4 relation) "")
4007 (nth 1 relation)
4008 (or (nth 2 relation) "") 0 0 "")
4009 gnus-newsgroup-dependencies nil)
4010 (push gnus-reffed-article-number gnus-newsgroup-limit)
4011 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4012 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4013 gnus-newsgroup-reads)
4014 (decf gnus-reffed-article-number)))
4015 (sort relations 'car-less-than-car))
eec82323
LMI
4016 (gnus-message 7 "Making sparse threads...done")))
4017
4018(defun gnus-build-old-threads ()
4019 ;; Look at all the articles that refer back to old articles, and
4020 ;; fetch the headers for the articles that aren't there. This will
4021 ;; build complete threads - if the roots haven't been expired by the
4022 ;; server, that is.
16409b0b
GM
4023 (let ((mail-parse-charset gnus-newsgroup-charset)
4024 id heads)
eec82323
LMI
4025 (mapatoms
4026 (lambda (refs)
4027 (when (not (car (symbol-value refs)))
4028 (setq heads (cdr (symbol-value refs)))
4029 (while heads
4030 (if (memq (mail-header-number (caar heads))
4031 gnus-newsgroup-dormant)
4032 (setq heads (cdr heads))
4033 (setq id (symbol-name refs))
4034 (while (and (setq id (gnus-build-get-header id))
6748645f 4035 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4036 (setq heads nil)))))
4037 gnus-newsgroup-dependencies)))
4038
23f87bed
MB
4039(defsubst gnus-remove-odd-characters (string)
4040 "Translate STRING into something that doesn't contain weird characters."
4041 (mm-subst-char-in-string
4042 ?\r ?\-
4043 (mm-subst-char-in-string
4044 ?\n ?\- string)))
4045
6748645f
LMI
4046;; This function has to be called with point after the article number
4047;; on the beginning of the line.
4048(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
4049 (let ((eol (gnus-point-at-eol))
4050 (buffer (current-buffer))
23f87bed 4051 header references in-reply-to)
6748645f
LMI
4052
4053 ;; overview: [num subject from date id refs chars lines misc]
4054 (unwind-protect
23f87bed 4055 (let (x)
6748645f
LMI
4056 (narrow-to-region (point) eol)
4057 (unless (eobp)
4058 (forward-char))
4059
4060 (setq header
4061 (make-full-mail-header
4062 number ; number
23f87bed
MB
4063 (condition-case () ; subject
4064 (gnus-remove-odd-characters
4065 (funcall gnus-decode-encoded-word-function
4066 (setq x (nnheader-nov-field))))
4067 (error x))
4068 (condition-case () ; from
4069 (gnus-remove-odd-characters
4070 (funcall gnus-decode-encoded-word-function
4071 (setq x (nnheader-nov-field))))
4072 (error x))
16409b0b
GM
4073 (nnheader-nov-field) ; date
4074 (nnheader-nov-read-message-id) ; id
23f87bed 4075 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4076 (nnheader-nov-read-integer) ; chars
4077 (nnheader-nov-read-integer) ; lines
4078 (unless (eobp)
8b93df01
DL
4079 (if (looking-at "Xref: ")
4080 (goto-char (match-end 0)))
4081 (nnheader-nov-field)) ; Xref
16409b0b 4082 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4083
4084 (widen))
4085
23f87bed
MB
4086 (when (and (string= references "")
4087 (setq in-reply-to (mail-header-extra header))
4088 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4089 (mail-header-set-references
4090 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4091
6748645f
LMI
4092 (when gnus-alter-header-function
4093 (funcall gnus-alter-header-function header))
4094 (gnus-dependencies-add-header header dependencies force-new)))
4095
eec82323 4096(defun gnus-build-get-header (id)
16409b0b
GM
4097 "Look through the buffer of NOV lines and find the header to ID.
4098Enter this line into the dependencies hash table, and return
4099the id of the parent article (if any)."
eec82323
LMI
4100 (let ((deps gnus-newsgroup-dependencies)
4101 found header)
4102 (prog1
4103 (save-excursion
4104 (set-buffer nntp-server-buffer)
4105 (let ((case-fold-search nil))
4106 (goto-char (point-min))
4107 (while (and (not found)
4108 (search-forward id nil t))
4109 (beginning-of-line)
4110 (setq found (looking-at
4111 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4112 (regexp-quote id))))
4113 (or found (beginning-of-line 2)))
4114 (when found
4115 (beginning-of-line)
4116 (and
4117 (setq header (gnus-nov-parse-line
4118 (read (current-buffer)) deps))
4119 (gnus-parent-id (mail-header-references header))))))
4120 (when header
4121 (let ((number (mail-header-number header)))
4122 (push number gnus-newsgroup-limit)
4123 (push header gnus-newsgroup-headers)
4124 (if (memq number gnus-newsgroup-unselected)
4125 (progn
23f87bed
MB
4126 (setq gnus-newsgroup-unreads
4127 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4128 number))
eec82323
LMI
4129 (setq gnus-newsgroup-unselected
4130 (delq number gnus-newsgroup-unselected)))
4131 (push number gnus-newsgroup-ancient)))))))
4132
6748645f
LMI
4133(defun gnus-build-all-threads ()
4134 "Read all the headers."
4135 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4136 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4137 (dependencies gnus-newsgroup-dependencies)
4138 header article)
4139 (save-excursion
4140 (set-buffer nntp-server-buffer)
4141 (let ((case-fold-search nil))
4142 (goto-char (point-min))
4143 (while (not (eobp))
4144 (ignore-errors
4145 (setq article (read (current-buffer))
16409b0b 4146 header (gnus-nov-parse-line article dependencies)))
6748645f
LMI
4147 (when header
4148 (save-excursion
4149 (set-buffer gnus-summary-buffer)
4150 (push header gnus-newsgroup-headers)
4151 (if (memq (setq article (mail-header-number header))
4152 gnus-newsgroup-unselected)
4153 (progn
23f87bed
MB
4154 (setq gnus-newsgroup-unreads
4155 (gnus-add-to-sorted-list
4156 gnus-newsgroup-unreads article))
6748645f
LMI
4157 (setq gnus-newsgroup-unselected
4158 (delq article gnus-newsgroup-unselected)))
4159 (push article gnus-newsgroup-ancient)))
4160 (forward-line 1)))))))
4161
eec82323 4162(defun gnus-summary-update-article-line (article header)
23f87bed 4163 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4164 (let* ((id (mail-header-id header))
4165 (thread (gnus-id-to-thread id)))
4166 (unless thread
4167 (error "Article in no thread"))
4168 ;; Update the thread.
4169 (setcar thread header)
4170 (gnus-summary-goto-subject article)
4171 (let* ((datal (gnus-data-find-list article))
4172 (data (car datal))
eec82323
LMI
4173 (buffer-read-only nil)
4174 (level (gnus-summary-thread-level)))
4175 (gnus-delete-line)
23f87bed
MB
4176 (let ((inserted (- (point)
4177 (progn
4178 (gnus-summary-insert-line
4179 header level nil
4180 (memq article gnus-newsgroup-undownloaded)
4181 (gnus-article-mark article)
4182 (memq article gnus-newsgroup-replied)
4183 (memq article gnus-newsgroup-expirable)
4184 ;; Only insert the Subject string when it's different
4185 ;; from the previous Subject string.
4186 (if (and
4187 gnus-show-threads
4188 (gnus-subject-equal
4189 (condition-case ()
4190 (mail-header-subject
4191 (gnus-data-header
4192 (cadr
4193 (gnus-data-find-list
4194 article
4195 (gnus-data-list t)))))
4196 ;; Error on the side of excessive subjects.
4197 (error ""))
4198 (mail-header-subject header)))
4199 ""
4200 (mail-header-subject header))
4201 nil (cdr (assq article gnus-newsgroup-scored))
4202 (memq article gnus-newsgroup-processable))
4203 (point)))))
4204 (when (cdr datal)
4205 (gnus-data-update-list
4206 (cdr datal)
4207 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4208
4209(defun gnus-summary-update-article (article &optional iheader)
4210 "Update ARTICLE in the summary buffer."
4211 (set-buffer gnus-summary-buffer)
6748645f 4212 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4213 (id (mail-header-id header))
4214 (data (gnus-data-find article))
4215 (thread (gnus-id-to-thread id))
4216 (references (mail-header-references header))
4217 (parent
4218 (gnus-id-to-thread
4219 (or (gnus-parent-id
4220 (when (and references
4221 (not (equal "" references)))
4222 references))
4223 "none")))
4224 (buffer-read-only nil)
6748645f 4225 (old (car thread)))
eec82323 4226 (when thread
eec82323 4227 (unless iheader
6748645f
LMI
4228 (setcar thread nil)
4229 (when parent
4230 (delq thread parent)))
4231 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4232 ;; Set the (possibly) new article number in the data structure.
4233 (gnus-data-set-number data (gnus-id-to-article id))
4234 (setcar thread old)
4235 nil))))
4236
6748645f
LMI
4237(defun gnus-rebuild-thread (id &optional line)
4238 "Rebuild the thread containing ID.
4239If LINE, insert the rebuilt thread starting on line LINE."
eec82323
LMI
4240 (let ((buffer-read-only nil)
4241 old-pos current thread data)
4242 (if (not gnus-show-threads)
4243 (setq thread (list (car (gnus-id-to-thread id))))
4244 ;; Get the thread this article is part of.
4245 (setq thread (gnus-remove-thread id)))
4246 (setq old-pos (gnus-point-at-bol))
4247 (setq current (save-excursion
94384150 4248 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4249 (gnus-summary-article-number))))
4250 ;; If this is a gathered thread, we have to go some re-gathering.
4251 (when (stringp (car thread))
4252 (let ((subject (car thread))
4253 roots thr)
4254 (setq thread (cdr thread))
4255 (while thread
4256 (unless (memq (setq thr (gnus-id-to-thread
4257 (gnus-root-id
4258 (mail-header-id (caar thread)))))
4259 roots)
4260 (push thr roots))
4261 (setq thread (cdr thread)))
4262 ;; We now have all (unique) roots.
4263 (if (= (length roots) 1)
4264 ;; All the loose roots are now one solid root.
4265 (setq thread (car roots))
4266 (setq thread (cons subject (gnus-sort-threads roots))))))
4267 (let (threads)
4268 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4269 (when line
4270 (goto-char (point-min))
4271 (forward-line (1- line)))
eec82323
LMI
4272 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4273 (if gnus-show-threads
4274 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4275 (gnus-summary-prepare-unthreaded thread))
4276 (setq data (nreverse gnus-newsgroup-data))
4277 (setq threads gnus-newsgroup-threads))
4278 ;; We splice the new data into the data structure.
6748645f
LMI
4279 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4280 ;;!!! then we want to insert at the beginning of the buffer.
4281 ;;!!! That happens to be true with Gnus now, but that may
4282 ;;!!! change in the future. Perhaps.
4283 (gnus-data-enter-list
4284 (if line nil current) data (- (point) old-pos))
4285 (setq gnus-newsgroup-threads
4286 (nconc threads gnus-newsgroup-threads))
4287 (gnus-data-compute-positions))))
eec82323
LMI
4288
4289(defun gnus-number-to-header (number)
4290 "Return the header for article NUMBER."
4291 (let ((headers gnus-newsgroup-headers))
4292 (while (and headers
4293 (not (= number (mail-header-number (car headers)))))
4294 (pop headers))
4295 (when headers
4296 (car headers))))
4297
6748645f 4298(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4299 "Return the headers of the GENERATIONeth parent of HEADERS."
4300 (unless generation
4301 (setq generation 1))
a8151ef7 4302 (let ((parent t)
6748645f 4303 (headers in-headers)
a8151ef7 4304 references)
6748645f
LMI
4305 (while (and parent
4306 (not (zerop generation))
4307 (setq references (mail-header-references headers)))
4308 (setq headers (if (and references
4309 (setq parent (gnus-parent-id references)))
4310 (car (gnus-id-to-thread parent))
4311 nil))
4312 (decf generation))
4313 (and (not (eq headers in-headers))
4314 headers)))
eec82323
LMI
4315
4316(defun gnus-id-to-thread (id)
4317 "Return the (sub-)thread where ID appears."
4318 (gnus-gethash id gnus-newsgroup-dependencies))
4319
4320(defun gnus-id-to-article (id)
4321 "Return the article number of ID."
4322 (let ((thread (gnus-id-to-thread id)))
4323 (when (and thread
4324 (car thread))
4325 (mail-header-number (car thread)))))
4326
4327(defun gnus-id-to-header (id)
4328 "Return the article headers of ID."
4329 (car (gnus-id-to-thread id)))
4330
4331(defun gnus-article-displayed-root-p (article)
4332 "Say whether ARTICLE is a root(ish) article."
4333 (let ((level (gnus-summary-thread-level article))
4334 (refs (mail-header-references (gnus-summary-article-header article)))
4335 particle)
4336 (cond
4337 ((null level) nil)
4338 ((zerop level) t)
4339 ((null refs) t)
4340 ((null (gnus-parent-id refs)) t)
4341 ((and (= 1 level)
4342 (null (setq particle (gnus-id-to-article
4343 (gnus-parent-id refs))))
4344 (null (gnus-summary-thread-level particle)))))))
4345
4346(defun gnus-root-id (id)
4347 "Return the id of the root of the thread where ID appears."
4348 (let (last-id prev)
6748645f 4349 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4350 (setq last-id id
4351 id (gnus-parent-id (mail-header-references prev))))
4352 last-id))
4353
6748645f
LMI
4354(defun gnus-articles-in-thread (thread)
4355 "Return the list of articles in THREAD."
4356 (cons (mail-header-number (car thread))
4357 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4358
eec82323
LMI
4359(defun gnus-remove-thread (id &optional dont-remove)
4360 "Remove the thread that has ID in it."
6748645f 4361 (let (headers thread last-id)
eec82323 4362 ;; First go up in this thread until we find the root.
6748645f
LMI
4363 (setq last-id (gnus-root-id id)
4364 headers (message-flatten-list (gnus-id-to-thread last-id)))
eec82323
LMI
4365 ;; We have now found the real root of this thread. It might have
4366 ;; been gathered into some loose thread, so we have to search
4367 ;; through the threads to find the thread we wanted.
4368 (let ((threads gnus-newsgroup-threads)
4369 sub)
4370 (while threads
4371 (setq sub (car threads))
4372 (if (stringp (car sub))
4373 ;; This is a gathered thread, so we look at the roots
4374 ;; below it to find whether this article is in this
4375 ;; gathered root.
4376 (progn
4377 (setq sub (cdr sub))
4378 (while sub
4379 (when (member (caar sub) headers)
4380 (setq thread (car threads)
4381 threads nil
4382 sub nil))
4383 (setq sub (cdr sub))))
4384 ;; It's an ordinary thread, so we check it.
4385 (when (eq (car sub) (car headers))
4386 (setq thread sub
4387 threads nil)))
4388 (setq threads (cdr threads)))
4389 ;; If this article is in no thread, then it's a root.
4390 (if thread
4391 (unless dont-remove
4392 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4393 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4394 (when thread
4395 (prog1
4396 thread ; We return this thread.
4397 (unless dont-remove
4398 (if (stringp (car thread))
4399 (progn
4400 ;; If we use dummy roots, then we have to remove the
4401 ;; dummy root as well.
4402 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4403 ;; We go to the dummy root by going to
4404 ;; the first sub-"thread", and then one line up.
4405 (gnus-summary-goto-article
4406 (mail-header-number (caadr thread)))
4407 (forward-line -1)
eec82323
LMI
4408 (gnus-delete-line)
4409 (gnus-data-compute-positions))
4410 (setq thread (cdr thread))
4411 (while thread
4412 (gnus-remove-thread-1 (car thread))
4413 (setq thread (cdr thread))))
4414 (gnus-remove-thread-1 thread))))))))
4415
4416(defun gnus-remove-thread-1 (thread)
4417 "Remove the thread THREAD recursively."
4418 (let ((number (mail-header-number (pop thread)))
4419 d)
4420 (setq thread (reverse thread))
4421 (while thread
4422 (gnus-remove-thread-1 (pop thread)))
4423 (when (setq d (gnus-data-find number))
4424 (goto-char (gnus-data-pos d))
16409b0b 4425 (gnus-summary-show-thread)
eec82323
LMI
4426 (gnus-data-remove
4427 number
4428 (- (gnus-point-at-bol)
4429 (prog1
4430 (1+ (gnus-point-at-eol))
4431 (gnus-delete-line)))))))
4432
16409b0b
GM
4433(defun gnus-sort-threads-1 (threads func)
4434 (sort (mapcar (lambda (thread)
4435 (cons (car thread)
4436 (and (cdr thread)
4437 (gnus-sort-threads-1 (cdr thread) func))))
4438 threads) func))
4439
eec82323
LMI
4440(defun gnus-sort-threads (threads)
4441 "Sort THREADS."
4442 (if (not gnus-thread-sort-functions)
4443 threads
6748645f 4444 (gnus-message 8 "Sorting threads...")
23f87bed
MB
4445 (let ((max-lisp-eval-depth 5000))
4446 (prog1 (gnus-sort-threads-1
a1506d29 4447 threads
16409b0b 4448 (gnus-make-sort-function gnus-thread-sort-functions))
23f87bed 4449 (gnus-message 8 "Sorting threads...done")))))
eec82323
LMI
4450
4451(defun gnus-sort-articles (articles)
4452 "Sort ARTICLES."
4453 (when gnus-article-sort-functions
4454 (gnus-message 7 "Sorting articles...")
4455 (prog1
4456 (setq gnus-newsgroup-headers
4457 (sort articles (gnus-make-sort-function
4458 gnus-article-sort-functions)))
4459 (gnus-message 7 "Sorting articles...done"))))
4460
4461;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4462(defmacro gnus-thread-header (thread)
16409b0b
GM
4463 "Return header of first article in THREAD.
4464Note that THREAD must never, ever be anything else than a variable -
4465using some other form will lead to serious barfage."
eec82323
LMI
4466 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4467 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4468 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4469 (vector thread) 2))
4470
4471(defsubst gnus-article-sort-by-number (h1 h2)
4472 "Sort articles by article number."
4473 (< (mail-header-number h1)
4474 (mail-header-number h2)))
4475
4476(defun gnus-thread-sort-by-number (h1 h2)
4477 "Sort threads by root article number."
4478 (gnus-article-sort-by-number
4479 (gnus-thread-header h1) (gnus-thread-header h2)))
4480
23f87bed
MB
4481(defsubst gnus-article-sort-by-random (h1 h2)
4482 "Sort articles by article number."
4483 (zerop (random 2)))
4484
4485(defun gnus-thread-sort-by-random (h1 h2)
4486 "Sort threads by root article number."
4487 (gnus-article-sort-by-random
4488 (gnus-thread-header h1) (gnus-thread-header h2)))
4489
eec82323
LMI
4490(defsubst gnus-article-sort-by-lines (h1 h2)
4491 "Sort articles by article Lines header."
4492 (< (mail-header-lines h1)
4493 (mail-header-lines h2)))
4494
4495(defun gnus-thread-sort-by-lines (h1 h2)
4496 "Sort threads by root article Lines header."
4497 (gnus-article-sort-by-lines
4498 (gnus-thread-header h1) (gnus-thread-header h2)))
4499
16409b0b
GM
4500(defsubst gnus-article-sort-by-chars (h1 h2)
4501 "Sort articles by octet length."
4502 (< (mail-header-chars h1)
4503 (mail-header-chars h2)))
4504
4505(defun gnus-thread-sort-by-chars (h1 h2)
4506 "Sort threads by root article octet length."
4507 (gnus-article-sort-by-chars
4508 (gnus-thread-header h1) (gnus-thread-header h2)))
4509
eec82323
LMI
4510(defsubst gnus-article-sort-by-author (h1 h2)
4511 "Sort articles by root author."
4512 (string-lessp
4513 (let ((extract (funcall
4514 gnus-extract-address-components
4515 (mail-header-from h1))))
4516 (or (car extract) (cadr extract) ""))
4517 (let ((extract (funcall
4518 gnus-extract-address-components
4519 (mail-header-from h2))))
4520 (or (car extract) (cadr extract) ""))))
4521
4522(defun gnus-thread-sort-by-author (h1 h2)
4523 "Sort threads by root author."
4524 (gnus-article-sort-by-author
4525 (gnus-thread-header h1) (gnus-thread-header h2)))
4526
4527(defsubst gnus-article-sort-by-subject (h1 h2)
4528 "Sort articles by root subject."
4529 (string-lessp
4530 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4531 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4532
4533(defun gnus-thread-sort-by-subject (h1 h2)
4534 "Sort threads by root subject."
4535 (gnus-article-sort-by-subject
4536 (gnus-thread-header h1) (gnus-thread-header h2)))
4537
4538(defsubst gnus-article-sort-by-date (h1 h2)
4539 "Sort articles by root article date."
16409b0b 4540 (time-less-p
eec82323
LMI
4541 (gnus-date-get-time (mail-header-date h1))
4542 (gnus-date-get-time (mail-header-date h2))))
4543
4544(defun gnus-thread-sort-by-date (h1 h2)
4545 "Sort threads by root article date."
4546 (gnus-article-sort-by-date
4547 (gnus-thread-header h1) (gnus-thread-header h2)))
4548
4549(defsubst gnus-article-sort-by-score (h1 h2)
4550 "Sort articles by root article score.
4551Unscored articles will be counted as having a score of zero."
4552 (> (or (cdr (assq (mail-header-number h1)
4553 gnus-newsgroup-scored))
4554 gnus-summary-default-score 0)
4555 (or (cdr (assq (mail-header-number h2)
4556 gnus-newsgroup-scored))
4557 gnus-summary-default-score 0)))
4558
4559(defun gnus-thread-sort-by-score (h1 h2)
4560 "Sort threads by root article score."
4561 (gnus-article-sort-by-score
4562 (gnus-thread-header h1) (gnus-thread-header h2)))
4563
4564(defun gnus-thread-sort-by-total-score (h1 h2)
4565 "Sort threads by the sum of all scores in the thread.
4566Unscored articles will be counted as having a score of zero."
4567 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4568
4569(defun gnus-thread-total-score (thread)
16409b0b 4570 ;; This function find the total score of THREAD.
23f87bed
MB
4571 (cond
4572 ((null thread)
4573 0)
4574 ((consp thread)
4575 (if (stringp (car thread))
4576 (apply gnus-thread-score-function 0
4577 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4578 (gnus-thread-total-score-1 thread)))
4579 (t
4580 (gnus-thread-total-score-1 (list thread)))))
4581
4582(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4583 "Sort threads such that the thread with the most recently arrived article comes first."
4584 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4585
4586(defun gnus-thread-highest-number (thread)
4587 "Return the highest article number in THREAD."
4588 (apply 'max (mapcar (lambda (header)
4589 (mail-header-number header))
4590 (message-flatten-list thread))))
4591
4592(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4593 "Sort threads such that the thread with the most recently dated article comes first."
4594 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4595
4596(defun gnus-thread-latest-date (thread)
4597 "Return the highest article date in THREAD."
4598 (let ((previous-time 0))
4599 (apply 'max
4600 (mapcar
4601 (lambda (header)
4602 (setq previous-time
4603 (condition-case ()
4604 (time-to-seconds (mail-header-parse-date
4605 (mail-header-date header)))
4606 (error previous-time))))
4607 (sort
4608 (message-flatten-list thread)
4609 (lambda (h1 h2)
4610 (< (mail-header-number h1)
4611 (mail-header-number h2))))))))
eec82323
LMI
4612
4613(defun gnus-thread-total-score-1 (root)
4614 ;; This function find the total score of the thread below ROOT.
4615 (setq root (car root))
4616 (apply gnus-thread-score-function
4617 (or (append
4618 (mapcar 'gnus-thread-total-score
6748645f 4619 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
4620 (when (> (mail-header-number root) 0)
4621 (list (or (cdr (assq (mail-header-number root)
4622 gnus-newsgroup-scored))
4623 gnus-summary-default-score 0))))
4624 (list gnus-summary-default-score)
4625 '(0))))
4626
4627;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
4628(defvar gnus-tmp-prev-subject nil)
4629(defvar gnus-tmp-false-parent nil)
4630(defvar gnus-tmp-root-expunged nil)
4631(defvar gnus-tmp-dummy-line nil)
4632
60bd5589 4633(eval-when-compile (defvar gnus-tmp-header))
16409b0b
GM
4634(defun gnus-extra-header (type &optional header)
4635 "Return the extra header of TYPE."
4636 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
4637 ""))
4638
23f87bed
MB
4639(defvar gnus-tmp-thread-tree-header-string "")
4640
4641(defcustom gnus-sum-thread-tree-root "> "
4642 "With %B spec, used for the root of a thread.
4643If nil, use subject instead."
bf247b6e 4644 :version "22.1"
ad136a7c 4645 :type '(radio (const :format "%v " nil) string)
23f87bed
MB
4646 :group 'gnus-thread)
4647(defcustom gnus-sum-thread-tree-false-root "> "
4648 "With %B spec, used for a false root of a thread.
4649If nil, use subject instead."
bf247b6e 4650 :version "22.1"
ad136a7c 4651 :type '(radio (const :format "%v " nil) string)
23f87bed
MB
4652 :group 'gnus-thread)
4653(defcustom gnus-sum-thread-tree-single-indent ""
4654 "With %B spec, used for a thread with just one message.
4655If nil, use subject instead."
bf247b6e 4656 :version "22.1"
ad136a7c 4657 :type '(radio (const :format "%v " nil) string)
23f87bed
MB
4658 :group 'gnus-thread)
4659(defcustom gnus-sum-thread-tree-vertical "| "
4660 "With %B spec, used for drawing a vertical line."
bf247b6e 4661 :version "22.1"
23f87bed
MB
4662 :type 'string
4663 :group 'gnus-thread)
4664(defcustom gnus-sum-thread-tree-indent " "
4665 "With %B spec, used for indenting."
bf247b6e 4666 :version "22.1"
23f87bed
MB
4667 :type 'string
4668 :group 'gnus-thread)
4669(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
4670 "With %B spec, used for a leaf with brothers."
bf247b6e 4671 :version "22.1"
23f87bed
MB
4672 :type 'string
4673 :group 'gnus-thread)
4674(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
4675 "With %B spec, used for a leaf without brothers."
bf247b6e 4676 :version "22.1"
23f87bed
MB
4677 :type 'string
4678 :group 'gnus-thread)
4679
eec82323
LMI
4680(defun gnus-summary-prepare-threads (threads)
4681 "Prepare summary buffer from THREADS and indentation LEVEL.
4682THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
4683or a straight list of headers."
4684 (gnus-message 7 "Generating summary...")
4685
4686 (setq gnus-newsgroup-threads threads)
4687 (beginning-of-line)
4688
4689 (let ((gnus-tmp-level 0)
4690 (default-score (or gnus-summary-default-score 0))
4691 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
4692 (building-line-count gnus-summary-display-while-building)
4693 (building-count (integerp gnus-summary-display-while-building))
eec82323 4694 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
4695 new-roots gnus-tmp-new-adopts thread-end simp-subject
4696 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
4697 gnus-tmp-replied gnus-tmp-subject-or-nil
4698 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
4699 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
4700 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
4701 tree-stack)
eec82323 4702
23f87bed
MB
4703 (setq gnus-tmp-prev-subject nil
4704 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
4705
4706 (if (vectorp (car threads))
4707 ;; If this is a straight (sic) list of headers, then a
4708 ;; threaded summary display isn't required, so we just create
4709 ;; an unthreaded one.
4710 (gnus-summary-prepare-unthreaded threads)
4711
4712 ;; Do the threaded display.
4713
23f87bed
MB
4714 (if gnus-summary-display-while-building
4715 (switch-to-buffer (buffer-name)))
eec82323
LMI
4716 (while (or threads stack gnus-tmp-new-adopts new-roots)
4717
4718 (if (and (= gnus-tmp-level 0)
eec82323
LMI
4719 (or (not stack)
4720 (= (caar stack) 0))
4721 (not gnus-tmp-false-parent)
4722 (or gnus-tmp-new-adopts new-roots))
4723 (if gnus-tmp-new-adopts
4724 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
4725 thread (list (car gnus-tmp-new-adopts))
4726 gnus-tmp-header (caar thread)
4727 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
4728 (when new-roots
4729 (setq thread (list (car new-roots))
4730 gnus-tmp-header (caar thread)
4731 new-roots (cdr new-roots))))
4732
4733 (if threads
4734 ;; If there are some threads, we do them before the
4735 ;; threads on the stack.
4736 (setq thread threads
4737 gnus-tmp-header (caar thread))
4738 ;; There were no current threads, so we pop something off
4739 ;; the stack.
4740 (setq state (car stack)
4741 gnus-tmp-level (car state)
23f87bed
MB
4742 tree-stack (cadr state)
4743 thread (caddr state)
eec82323
LMI
4744 stack (cdr stack)
4745 gnus-tmp-header (caar thread))))
4746
4747 (setq gnus-tmp-false-parent nil)
4748 (setq gnus-tmp-root-expunged nil)
4749 (setq thread-end nil)
4750
4751 (if (stringp gnus-tmp-header)
4752 ;; The header is a dummy root.
4753 (cond
4754 ((eq gnus-summary-make-false-root 'adopt)
4755 ;; We let the first article adopt the rest.
4756 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
4757 (cddar thread)))
4758 (setq gnus-tmp-gathered
4759 (nconc (mapcar
4760 (lambda (h) (mail-header-number (car h)))
4761 (cddar thread))
4762 gnus-tmp-gathered))
4763 (setq thread (cons (list (caar thread)
4764 (cadar thread))
4765 (cdr thread)))
4766 (setq gnus-tmp-level -1
4767 gnus-tmp-false-parent t))
4768 ((eq gnus-summary-make-false-root 'empty)
4769 ;; We print adopted articles with empty subject fields.
4770 (setq gnus-tmp-gathered
4771 (nconc (mapcar
4772 (lambda (h) (mail-header-number (car h)))
4773 (cddar thread))
4774 gnus-tmp-gathered))
4775 (setq gnus-tmp-level -1))
4776 ((eq gnus-summary-make-false-root 'dummy)
4777 ;; We remember that we probably want to output a dummy
4778 ;; root.
4779 (setq gnus-tmp-dummy-line gnus-tmp-header)
4780 (setq gnus-tmp-prev-subject gnus-tmp-header))
4781 (t
4782 ;; We do not make a root for the gathered
4783 ;; sub-threads at all.
4784 (setq gnus-tmp-level -1)))
4785
4786 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
4787 subject (mail-header-subject gnus-tmp-header)
4788 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
4789
4790 (cond
4791 ;; If the thread has changed subject, we might want to make
4792 ;; this subthread into a root.
4793 ((and (null gnus-thread-ignore-subject)
4794 (not (zerop gnus-tmp-level))
4795 gnus-tmp-prev-subject
23f87bed 4796 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4797 (setq new-roots (nconc new-roots (list (car thread)))
4798 thread-end t
4799 gnus-tmp-header nil))
4800 ;; If the article lies outside the current limit,
4801 ;; then we do not display it.
4802 ((not (memq number gnus-newsgroup-limit))
4803 (setq gnus-tmp-gathered
4804 (nconc (mapcar
4805 (lambda (h) (mail-header-number (car h)))
4806 (cdar thread))
4807 gnus-tmp-gathered))
4808 (setq gnus-tmp-new-adopts (if (cdar thread)
4809 (append gnus-tmp-new-adopts
4810 (cdar thread))
4811 gnus-tmp-new-adopts)
4812 thread-end t
4813 gnus-tmp-header nil)
4814 (when (zerop gnus-tmp-level)
4815 (setq gnus-tmp-root-expunged t)))
4816 ;; Perhaps this article is to be marked as read?
4817 ((and gnus-summary-mark-below
4818 (< (or (cdr (assq number gnus-newsgroup-scored))
4819 default-score)
4820 gnus-summary-mark-below)
4821 ;; Don't touch sparse articles.
4822 (not (gnus-summary-article-sparse-p number))
4823 (not (gnus-summary-article-ancient-p number)))
4824 (setq gnus-newsgroup-unreads
4825 (delq number gnus-newsgroup-unreads))
4826 (if gnus-newsgroup-auto-expire
23f87bed
MB
4827 (setq gnus-newsgroup-expirable
4828 (gnus-add-to-sorted-list
4829 gnus-newsgroup-expirable number))
eec82323
LMI
4830 (push (cons number gnus-low-score-mark)
4831 gnus-newsgroup-reads))))
4832
4833 (when gnus-tmp-header
4834 ;; We may have an old dummy line to output before this
4835 ;; article.
6748645f
LMI
4836 (when (and gnus-tmp-dummy-line
4837 (gnus-subject-equal
4838 gnus-tmp-dummy-line
4839 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
4840 (gnus-summary-insert-dummy-line
4841 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
4842 (setq gnus-tmp-dummy-line nil))
4843
4844 ;; Compute the mark.
4845 (setq gnus-tmp-unread (gnus-article-mark number))
4846
4847 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
4848 gnus-tmp-header gnus-tmp-level)
4849 gnus-newsgroup-data)
4850
4851 ;; Actually insert the line.
4852 (setq
4853 gnus-tmp-subject-or-nil
4854 (cond
4855 ((and gnus-thread-ignore-subject
4856 gnus-tmp-prev-subject
23f87bed 4857 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4858 subject)
4859 ((zerop gnus-tmp-level)
4860 (if (and (eq gnus-summary-make-false-root 'empty)
4861 (memq number gnus-tmp-gathered)
4862 gnus-tmp-prev-subject
23f87bed 4863 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
4864 gnus-summary-same-subject
4865 subject))
4866 (t gnus-summary-same-subject)))
4867 (if (and (eq gnus-summary-make-false-root 'adopt)
4868 (= gnus-tmp-level 1)
4869 (memq number gnus-tmp-gathered))
4870 (setq gnus-tmp-opening-bracket ?\<
4871 gnus-tmp-closing-bracket ?\>)
4872 (setq gnus-tmp-opening-bracket ?\[
4873 gnus-tmp-closing-bracket ?\]))
4874 (setq
4875 gnus-tmp-indentation
4876 (aref gnus-thread-indent-array gnus-tmp-level)
4877 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
4878 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
4879 gnus-summary-default-score 0)
4880 gnus-tmp-score-char
4881 (if (or (null gnus-summary-default-score)
4882 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
4883 gnus-summary-zcore-fuzz))
23f87bed 4884 ? ;Whitespace
eec82323
LMI
4885 (if (< gnus-tmp-score gnus-summary-default-score)
4886 gnus-score-below-mark gnus-score-over-mark))
4887 gnus-tmp-replied
4888 (cond ((memq number gnus-newsgroup-processable)
4889 gnus-process-mark)
4890 ((memq number gnus-newsgroup-cached)
4891 gnus-cached-mark)
4892 ((memq number gnus-newsgroup-replied)
4893 gnus-replied-mark)
23f87bed
MB
4894 ((memq number gnus-newsgroup-forwarded)
4895 gnus-forwarded-mark)
eec82323
LMI
4896 ((memq number gnus-newsgroup-saved)
4897 gnus-saved-mark)
23f87bed
MB
4898 ((memq number gnus-newsgroup-recent)
4899 gnus-recent-mark)
4900 ((memq number gnus-newsgroup-unseen)
4901 gnus-unseen-mark)
4902 (t gnus-no-mark))
4903 gnus-tmp-downloaded
4904 (cond ((memq number gnus-newsgroup-undownloaded)
4905 gnus-undownloaded-mark)
4906 (gnus-newsgroup-agentized
4907 gnus-downloaded-mark)
4908 (t
4909 gnus-no-mark))
eec82323
LMI
4910 gnus-tmp-from (mail-header-from gnus-tmp-header)
4911 gnus-tmp-name
4912 (cond
4913 ((string-match "<[^>]+> *$" gnus-tmp-from)
4914 (setq beg-match (match-beginning 0))
23f87bed
MB
4915 (or (and (string-match "^\".+\"" gnus-tmp-from)
4916 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
4917 (substring gnus-tmp-from 0 beg-match)))
4918 ((string-match "(.+)" gnus-tmp-from)
4919 (substring gnus-tmp-from
4920 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
4921 (t gnus-tmp-from))
4922
4923 ;; Do the %B string
4924 gnus-tmp-thread-tree-header-string
4925 (cond
4926 ((not gnus-show-threads) "")
4927 ((zerop gnus-tmp-level)
4928 (cond ((cdar thread)
4929 (or gnus-sum-thread-tree-root subject))
4930 (gnus-tmp-new-adopts
4931 (or gnus-sum-thread-tree-false-root subject))
4932 (t
4933 (or gnus-sum-thread-tree-single-indent subject))))
4934 (t
4935 (concat (apply 'concat
4936 (mapcar (lambda (item)
4937 (if (= item 1)
4938 gnus-sum-thread-tree-vertical
4939 gnus-sum-thread-tree-indent))
4940 (cdr (reverse tree-stack))))
4941 (if (nth 1 thread)
4942 gnus-sum-thread-tree-leaf-with-other
4943 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
4944 (when (string= gnus-tmp-name "")
4945 (setq gnus-tmp-name gnus-tmp-from))
4946 (unless (numberp gnus-tmp-lines)
23f87bed
MB
4947 (setq gnus-tmp-lines -1))
4948 (if (= gnus-tmp-lines -1)
4949 (setq gnus-tmp-lines "?")
4950 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
4951 (gnus-put-text-property
eec82323
LMI
4952 (point)
4953 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 4954 'gnus-number number)
eec82323
LMI
4955 (when gnus-visual-p
4956 (forward-line -1)
6748645f 4957 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
4958 (forward-line 1))
4959
23f87bed 4960 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
4961
4962 (when (nth 1 thread)
23f87bed
MB
4963 (push (list (max 0 gnus-tmp-level)
4964 (copy-sequence tree-stack)
4965 (nthcdr 1 thread))
4966 stack))
4967 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
4968 (incf gnus-tmp-level)
4969 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
4970 (if gnus-summary-display-while-building
4971 (if building-count
4972 (progn
4973 ;; use a set frequency
4974 (setq building-line-count (1- building-line-count))
4975 (when (= building-line-count 0)
4976 (sit-for 0)
4977 (setq building-line-count
4978 gnus-summary-display-while-building)))
4979 ;; always
4980 (sit-for 0)))
eec82323
LMI
4981 (unless threads
4982 (setq gnus-tmp-level 0)))))
4983 (gnus-message 7 "Generating summary...done"))
4984
4985(defun gnus-summary-prepare-unthreaded (headers)
4986 "Generate an unthreaded summary buffer based on HEADERS."
4987 (let (header number mark)
4988
4989 (beginning-of-line)
4990
4991 (while headers
4992 ;; We may have to root out some bad articles...
4993 (when (memq (setq number (mail-header-number
4994 (setq header (pop headers))))
4995 gnus-newsgroup-limit)
4996 ;; Mark article as read when it has a low score.
4997 (when (and gnus-summary-mark-below
4998 (< (or (cdr (assq number gnus-newsgroup-scored))
4999 gnus-summary-default-score 0)
5000 gnus-summary-mark-below)
5001 (not (gnus-summary-article-ancient-p number)))
5002 (setq gnus-newsgroup-unreads
5003 (delq number gnus-newsgroup-unreads))
5004 (if gnus-newsgroup-auto-expire
5005 (push number gnus-newsgroup-expirable)
5006 (push (cons number gnus-low-score-mark)
5007 gnus-newsgroup-reads)))
5008
5009 (setq mark (gnus-article-mark number))
5010 (push (gnus-data-make number mark (1+ (point)) header 0)
5011 gnus-newsgroup-data)
5012 (gnus-summary-insert-line
5013 header 0 number
23f87bed 5014 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5015 mark (memq number gnus-newsgroup-replied)
5016 (memq number gnus-newsgroup-expirable)
5017 (mail-header-subject header) nil
5018 (cdr (assq number gnus-newsgroup-scored))
5019 (memq number gnus-newsgroup-processable))))))
5020
16409b0b
GM
5021(defun gnus-summary-remove-list-identifiers ()
5022 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5023 (let ((regexp (if (consp gnus-list-identifiers)
5024 (mapconcat 'identity gnus-list-identifiers " *\\|")
5025 gnus-list-identifiers))
5026 changed subject)
5027 (when regexp
5028 (dolist (header gnus-newsgroup-headers)
5029 (setq subject (mail-header-subject header)
5030 changed nil)
5031 (while (string-match
5032 (concat "^\\(R[Ee]: +\\)*\\(" regexp " *\\)")
5033 subject)
5034 (setq subject
5035 (concat (substring subject 0 (match-beginning 2))
5036 (substring subject (match-end 0)))
5037 changed t))
5038 (when (and changed
5039 (string-match
5040 "^\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" subject))
5041 (setq subject
5042 (concat (substring subject 0 (match-beginning 1))
5043 (substring subject (match-end 1)))))
5044 (when changed
5045 (mail-header-set-subject header subject))))))
5046
5047(defun gnus-fetch-headers (articles)
5048 "Fetch headers of ARTICLES."
5049 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5050 (gnus-message 5 "Fetching headers for %s..." name)
5051 (prog1
5052 (if (eq 'nov
5053 (setq gnus-headers-retrieved-by
5054 (gnus-retrieve-headers
5055 articles gnus-newsgroup-name
5056 ;; We might want to fetch old headers, but
5057 ;; not if there is only 1 article.
5058 (and (or (and
5059 (not (eq gnus-fetch-old-headers 'some))
5060 (not (numberp gnus-fetch-old-headers)))
5061 (> (length articles) 1))
5062 gnus-fetch-old-headers))))
5063 (gnus-get-newsgroup-headers-xover
5064 articles nil nil gnus-newsgroup-name t)
5065 (gnus-get-newsgroup-headers))
5066 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5067
6748645f 5068(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5069 "Select newsgroup GROUP.
6748645f
LMI
5070If READ-ALL is non-nil, all articles in the group are selected.
5071If SELECT-ARTICLES, only select those articles from GROUP."
eec82323
LMI
5072 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
5073 ;;!!! Dirty hack; should be removed.
5074 (gnus-summary-ignore-duplicates
23f87bed 5075 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5076 t
5077 gnus-summary-ignore-duplicates))
5078 (info (nth 2 entry))
5079 articles fetched-articles cached)
5080
5081 (unless (gnus-check-server
475e0e0c
GM
5082 (set (make-local-variable 'gnus-current-select-method)
5083 (gnus-find-method-for-group group)))
eec82323
LMI
5084 (error "Couldn't open server"))
5085
5086 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5087 (gnus-activate-group group) ; Or we can activate it...
5088 (progn ; Or we bug out.
5089 (when (equal major-mode 'gnus-summary-mode)
23f87bed
MB
5090 (gnus-kill-buffer (current-buffer)))
5091 (error "Couldn't activate group %s: %s"
eec82323
LMI
5092 group (gnus-status-message group))))
5093
5094 (unless (gnus-request-group group t)
5095 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5096 (gnus-kill-buffer (current-buffer)))
eec82323
LMI
5097 (error "Couldn't request group %s: %s"
5098 group (gnus-status-message group)))
5099
23f87bed 5100 (when gnus-agent
54506618 5101 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5102
23f87bed
MB
5103 (setq gnus-summary-use-undownloaded-faces
5104 (gnus-agent-find-parameter
5105 group
5106 'agent-enable-undownloaded-faces)))
5107
5108 (setq gnus-newsgroup-name group
5109 gnus-newsgroup-unselected nil
5110 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5111
5112 (let ((display (gnus-group-find-parameter group 'display)))
5113 (setq gnus-newsgroup-display
5114 (cond
5115 ((not (zerop (or (car-safe read-all) 0)))
5116 ;; The user entered the group with C-u SPC/RET, let's show
5117 ;; all articles.
5118 'gnus-not-ignore)
5119 ((eq display 'all)
5120 'gnus-not-ignore)
5121 ((arrayp display)
5122 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5123 ((numberp display)
5124 ;; The following is probably the "correct" solution, but
5125 ;; it makes Gnus fetch all headers and then limit the
5126 ;; articles (which is slow), so instead we hack the
5127 ;; select-articles parameter instead. -- Simon Josefsson
5128 ;; <jas@kth.se>
5129 ;;
5130 ;; (gnus-byte-compile
5131 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5132 ;; display)))))
5133 (setq select-articles
5134 (gnus-uncompress-range
5135 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5136 (if (> tmp 0)
5137 tmp
5138 1))
5139 (cdr (gnus-active group)))))
5140 nil)
5141 (t
5142 nil))))
eec82323 5143
23f87bed 5144 (gnus-summary-setup-default-charset)
eec82323
LMI
5145
5146 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5147 (when (gnus-virtual-group-p group)
5148 (setq cached gnus-newsgroup-cached))
5149
5150 (setq gnus-newsgroup-unreads
23f87bed
MB
5151 (gnus-sorted-ndifference
5152 (gnus-sorted-ndifference gnus-newsgroup-unreads
5153 gnus-newsgroup-marked)
eec82323
LMI
5154 gnus-newsgroup-dormant))
5155
5156 (setq gnus-newsgroup-processable nil)
5157
5158 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5159
23f87bed
MB
5160 ;; Adjust and set lists of article marks.
5161 (when info
5162 (gnus-adjust-marked-articles info))
6748645f
LMI
5163 (if (setq articles select-articles)
5164 (setq gnus-newsgroup-unselected
23f87bed 5165 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5166 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5167
5168 (cond
5169 ((null articles)
5170 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5171 'quit)
5172 ((eq articles 0) nil)
5173 (t
5174 ;; Init the dependencies hash table.
5175 (setq gnus-newsgroup-dependencies
5176 (gnus-make-hashtable (length articles)))
16409b0b 5177 (gnus-set-global-variables)
eec82323 5178 ;; Retrieve the headers and read them in.
23f87bed
MB
5179
5180 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5181
5182 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5183 (when cached
5184 (setq gnus-newsgroup-cached cached))
5185
5186 ;; Suppress duplicates?
5187 (when gnus-suppress-duplicates
5188 (gnus-dup-suppress-articles))
5189
5190 ;; Set the initial limit.
5191 (setq gnus-newsgroup-limit (copy-sequence articles))
5192 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5193 (setq fetched-articles
5194 (mapcar (lambda (headers) (mail-header-number headers))
5195 gnus-newsgroup-headers))
5196 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5197 (setq gnus-newsgroup-unreads
23f87bed
MB
5198 (gnus-sorted-nintersection
5199 gnus-newsgroup-unreads fetched-articles))
5200 (gnus-compute-unseen-list)
5201
eec82323
LMI
5202 ;; Removed marked articles that do not exist.
5203 (gnus-update-missing-marks
23f87bed 5204 (gnus-sorted-difference articles fetched-articles))
eec82323 5205 ;; We might want to build some more threads first.
6748645f
LMI
5206 (when (and gnus-fetch-old-headers
5207 (eq gnus-headers-retrieved-by 'nov))
5208 (if (eq gnus-fetch-old-headers 'invisible)
5209 (gnus-build-all-threads)
5210 (gnus-build-old-threads)))
5211 ;; Let the Gnus agent mark articles as read.
5212 (when gnus-agent
5213 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5214 ;; Remove list identifiers from subject
5215 (when gnus-list-identifiers
5216 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5217 ;; Check whether auto-expire is to be done in this group.
5218 (setq gnus-newsgroup-auto-expire
5219 (gnus-group-auto-expirable-p group))
5220 ;; Set up the article buffer now, if necessary.
5221 (unless gnus-single-article-buffer
5222 (gnus-article-setup-buffer))
5223 ;; First and last article in this newsgroup.
5224 (when gnus-newsgroup-headers
5225 (setq gnus-newsgroup-begin
5226 (mail-header-number (car gnus-newsgroup-headers))
5227 gnus-newsgroup-end
5228 (mail-header-number
5229 (gnus-last-element gnus-newsgroup-headers))))
5230 ;; GROUP is successfully selected.
5231 (or gnus-newsgroup-headers t)))))
5232
23f87bed
MB
5233(defun gnus-compute-unseen-list ()
5234 ;; The `seen' marks are treated specially.
5235 (if (not gnus-newsgroup-seen)
5236 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5237 (setq gnus-newsgroup-unseen
5238 (gnus-inverse-list-range-intersection
5239 gnus-newsgroup-articles gnus-newsgroup-seen))))
5240
5241(defun gnus-summary-display-make-predicate (display)
5242 (require 'gnus-agent)
5243 (when (= (length display) 1)
5244 (setq display (car display)))
5245 (unless gnus-summary-display-cache
5246 (dolist (elem (append '((unread . unread)
5247 (read . read)
5248 (unseen . unseen))
5249 gnus-article-mark-lists))
5250 (push (cons (cdr elem)
5251 (gnus-byte-compile
5252 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5253 gnus-summary-display-cache)))
5254 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5255 (gnus-category-predicate-cache gnus-summary-display-cache))
5256 (gnus-get-predicate display)))
5257
5258;; Uses the dynamically bound `number' variable.
5259(eval-when-compile
5260 (defvar number))
5261(defun gnus-article-marked-p (type &optional article)
5262 (let ((article (or article number)))
5263 (cond
5264 ((eq type 'tick)
5265 (memq article gnus-newsgroup-marked))
5266 ((eq type 'spam)
5267 (memq article gnus-newsgroup-spam-marked))
5268 ((eq type 'unsend)
5269 (memq article gnus-newsgroup-unsendable))
5270 ((eq type 'undownload)
5271 (memq article gnus-newsgroup-undownloaded))
5272 ((eq type 'download)
5273 (memq article gnus-newsgroup-downloadable))
5274 ((eq type 'unread)
5275 (memq article gnus-newsgroup-unreads))
5276 ((eq type 'read)
5277 (memq article gnus-newsgroup-reads))
5278 ((eq type 'dormant)
5279 (memq article gnus-newsgroup-dormant) )
5280 ((eq type 'expire)
5281 (memq article gnus-newsgroup-expirable))
5282 ((eq type 'reply)
5283 (memq article gnus-newsgroup-replied))
5284 ((eq type 'killed)
5285 (memq article gnus-newsgroup-killed))
5286 ((eq type 'bookmark)
5287 (assq article gnus-newsgroup-bookmarks))
5288 ((eq type 'score)
5289 (assq article gnus-newsgroup-scored))
5290 ((eq type 'save)
5291 (memq article gnus-newsgroup-saved))
5292 ((eq type 'cache)
5293 (memq article gnus-newsgroup-cached))
5294 ((eq type 'forward)
5295 (memq article gnus-newsgroup-forwarded))
5296 ((eq type 'seen)
5297 (not (memq article gnus-newsgroup-unseen)))
5298 ((eq type 'recent)
5299 (memq article gnus-newsgroup-recent))
5300 (t t))))
5301
eec82323 5302(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5303 "Find out what articles the user wants to read."
23f87bed
MB
5304 (let* ((display (gnus-group-find-parameter group 'display))
5305 (articles
eec82323
LMI
5306 ;; Select all articles if `read-all' is non-nil, or if there
5307 ;; are no unread articles.
5308 (if (or read-all
5309 (and (zerop (length gnus-newsgroup-marked))
5310 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5311 ;; Fetch all if the predicate is non-nil.
5312 gnus-newsgroup-display)
5313 ;; We want to select the headers for all the articles in
5314 ;; the group, so we select either all the active
5315 ;; articles in the group, or (if that's nil), the
5316 ;; articles in the cache.
16409b0b
GM
5317 (or
5318 (gnus-uncompress-range (gnus-active group))
5319 (gnus-cache-articles-in-group group))
23f87bed
MB
5320 ;; Select only the "normal" subset of articles.
5321 (gnus-sorted-nunion
5322 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5323 gnus-newsgroup-unreads)))
eec82323
LMI
5324 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5325 (scored (length scored-list))
5326 (number (length articles))
5327 (marked (+ (length gnus-newsgroup-marked)
5328 (length gnus-newsgroup-dormant)))
5329 (select
5330 (cond
5331 ((numberp read-all)
5332 read-all)
23f87bed
MB
5333 ((numberp gnus-newsgroup-display)
5334 gnus-newsgroup-display)
eec82323
LMI
5335 (t
5336 (condition-case ()
5337 (cond
5338 ((and (or (<= scored marked) (= scored number))
5339 (numberp gnus-large-newsgroup)
5340 (> number gnus-large-newsgroup))
23f87bed
MB
5341 (let* ((cursor-in-echo-area nil)
5342 (initial (gnus-parameter-large-newsgroup-initial
5343 gnus-newsgroup-name))
5344 (input
5345 (read-string
5346 (format
5347 "How many articles from %s (%s %d): "
5348 (gnus-limit-string
5349 (gnus-group-decoded-name gnus-newsgroup-name)
5350 35)
5351 (if initial "max" "default")
5352 number)
5353 (if initial
5354 (cons (number-to-string initial)
5355 0)))))
eec82323
LMI
5356 (if (string-match "^[ \t]*$" input) number input)))
5357 ((and (> scored marked) (< scored number)
5358 (> (- scored number) 20))
5359 (let ((input
5360 (read-string
5361 (format "%s %s (%d scored, %d total): "
5362 "How many articles from"
23f87bed
MB
5363 (gnus-group-decoded-name group)
5364 scored number))))
eec82323
LMI
5365 (if (string-match "^[ \t]*$" input)
5366 number input)))
5367 (t number))
d4dfaa19
DL
5368 (quit
5369 (message "Quit getting the articles to read")
5370 nil))))))
eec82323
LMI
5371 (setq select (if (stringp select) (string-to-number select) select))
5372 (if (or (null select) (zerop select))
5373 select
5374 (if (and (not (zerop scored)) (<= (abs select) scored))
5375 (progn
5376 (setq articles (sort scored-list '<))
5377 (setq number (length articles)))
5378 (setq articles (copy-sequence articles)))
5379
5380 (when (< (abs select) number)
5381 (if (< select 0)
5382 ;; Select the N oldest articles.
5383 (setcdr (nthcdr (1- (abs select)) articles) nil)
5384 ;; Select the N most recent articles.
5385 (setq articles (nthcdr (- number select) articles))))
5386 (setq gnus-newsgroup-unselected
23f87bed 5387 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5388 (when gnus-alter-articles-to-read-function
23f87bed 5389 (setq articles
a1506d29 5390 (sort
16409b0b 5391 (funcall gnus-alter-articles-to-read-function
23f87bed 5392 gnus-newsgroup-name articles)
16409b0b 5393 '<)))
eec82323
LMI
5394 articles)))
5395
5396(defun gnus-killed-articles (killed articles)
5397 (let (out)
5398 (while articles
5399 (when (inline (gnus-member-of-range (car articles) killed))
5400 (push (car articles) out))
5401 (setq articles (cdr articles)))
5402 out))
5403
5404(defun gnus-uncompress-marks (marks)
5405 "Uncompress the mark ranges in MARKS."
5406 (let ((uncompressed '(score bookmark))
5407 out)
5408 (while marks
5409 (if (memq (caar marks) uncompressed)
5410 (push (car marks) out)
5411 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5412 (setq marks (cdr marks)))
5413 out))
5414
23f87bed
MB
5415(defun gnus-article-mark-to-type (mark)
5416 "Return the type of MARK."
5417 (or (cadr (assq mark gnus-article-special-mark-lists))
5418 'list))
5419
5420(defun gnus-article-unpropagatable-p (mark)
5421 "Return whether MARK should be propagated to back end."
5422 (memq mark gnus-article-unpropagated-mark-lists))
5423
eec82323 5424(defun gnus-adjust-marked-articles (info)
16409b0b 5425 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5426 (let* ((marked-lists (gnus-info-marks info))
5427 (active (gnus-active (gnus-info-group info)))
5428 (min (car active))
5429 (max (cdr active))
5430 (types gnus-article-mark-lists)
54506618
MB
5431 marks var articles article mark mark-type
5432 bgn end)
eec82323 5433
23f87bed
MB
5434 (dolist (marks marked-lists)
5435 (setq mark (car marks)
5436 mark-type (gnus-article-mark-to-type mark)
5437 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5438
23f87bed
MB
5439 ;; We set the variable according to the type of the marks list,
5440 ;; and then adjust the marks to a subset of the active articles.
eec82323 5441 (cond
54506618 5442 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5443 ((eq mark-type 'list)
54506618
MB
5444 ;; Simultaneously uncompress and clip to active range
5445 ;; See gnus-uncompress-range for a description of possible marks
5446 (let (l lh)
5447 (if (not (cadr marks))
5448 (set var nil)
5449 (setq articles (if (numberp (cddr marks))
5450 (list (cdr marks))
5451 (cdr marks))
5452 lh (cons nil nil)
5453 l lh)
5454
5455 (while (setq article (pop articles))
5456 (cond ((consp article)
5457 (setq bgn (max (car article) min)
5458 end (min (cdr article) max))
5459 (while (<= bgn end)
5460 (setq l (setcdr l (cons bgn nil))
5461 bgn (1+ bgn))))
5462 ((and (<= min article)
5463 (>= max article))
5464 (setq l (setcdr l (cons article nil))))))
5465 (set var (cdr lh)))))
eec82323 5466 ;; Adjust assocs.
23f87bed
MB
5467 ((eq mark-type 'tuple)
5468 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5469 (when (not (listp (cdr (symbol-value var))))
5470 (set var (list (symbol-value var))))
5471 (when (not (listp (cdr articles)))
5472 (setq articles (list articles)))
eec82323
LMI
5473 (while articles
5474 (when (or (not (consp (setq article (pop articles))))
5475 (< (car article) min)
5476 (> (car article) max))
23f87bed
MB
5477 (set var (delq article (symbol-value var))))))
5478 ;; Adjust ranges (sloppily).
5479 ((eq mark-type 'range)
5480 (cond
5481 ((eq mark 'seen)
5482 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5483 ;; It should be (seen (NUM1 . NUM2)).
5484 (when (numberp (cddr marks))
5485 (setcdr marks (list (cdr marks))))
5486 (setq articles (cdr marks))
5487 (while (and articles
5488 (or (and (consp (car articles))
5489 (> min (cdar articles)))
5490 (and (numberp (car articles))
5491 (> min (car articles)))))
5492 (pop articles))
5493 (set var articles))))))))
eec82323
LMI
5494
5495(defun gnus-update-missing-marks (missing)
6748645f 5496 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5497 (when missing
23f87bed 5498 (let (var m)
eec82323 5499 ;; Go through all types.
23f87bed
MB
5500 (dolist (elem gnus-article-mark-lists)
5501 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5502 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5503 (when (symbol-value var)
5504 ;; This list has articles. So we delete all missing
5505 ;; articles from it.
5506 (setq m missing)
5507 (while m
5508 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5509
5510(defun gnus-update-marks ()
5511 "Enter the various lists of marked articles into the newsgroup info list."
5512 (let ((types gnus-article-mark-lists)
5513 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5514 type list newmarked symbol delta-marks)
eec82323 5515 (when info
16409b0b 5516 ;; Add all marks lists to the list of marks lists.
eec82323 5517 (while (setq type (pop types))
16409b0b
GM
5518 (setq list (symbol-value
5519 (setq symbol
23f87bed 5520 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5521
16409b0b 5522 (when list
eec82323
LMI
5523 ;; Get rid of the entries of the articles that have the
5524 ;; default score.
5525 (when (and (eq (cdr type) 'score)
5526 gnus-save-score
5527 list)
5528 (let* ((arts list)
5529 (prev (cons nil list))
5530 (all prev))
5531 (while arts
5532 (if (or (not (consp (car arts)))
5533 (= (cdar arts) gnus-summary-default-score))
5534 (setcdr prev (cdr arts))
5535 (setq prev arts))
5536 (setq arts (cdr arts)))
16409b0b
GM
5537 (setq list (cdr all)))))
5538
23f87bed
MB
5539 (when (eq (cdr type) 'seen)
5540 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5541
5542 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5543 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5544
23f87bed
MB
5545 (when (and (gnus-check-backend-function
5546 'request-set-mark gnus-newsgroup-name)
5547 (not (gnus-article-unpropagatable-p (cdr type))))
5548 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5549 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5550 (add (gnus-remove-from-range
5551 (gnus-copy-sequence list) old)))
5552 (when add
5553 (push (list add 'add (list (cdr type))) delta-marks))
5554 (when del
5555 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5556
16409b0b
GM
5557 (when list
5558 (push (cons (cdr type) list) newmarked)))
5559
5560 (when delta-marks
5561 (unless (gnus-check-group gnus-newsgroup-name)
5562 (error "Can't open server for %s" gnus-newsgroup-name))
5563 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5564
eec82323
LMI
5565 ;; Enter these new marks into the info of the group.
5566 (if (nthcdr 3 info)
5567 (setcar (nthcdr 3 info) newmarked)
5568 ;; Add the marks lists to the end of the info.
5569 (when newmarked
5570 (setcdr (nthcdr 2 info) (list newmarked))))
5571
5572 ;; Cut off the end of the info if there's nothing else there.
5573 (let ((i 5))
5574 (while (and (> i 2)
5575 (not (nth i info)))
5576 (when (nthcdr (decf i) info)
5577 (setcdr (nthcdr i info) nil)))))))
5578
5579(defun gnus-set-mode-line (where)
16409b0b 5580 "Set the mode line of the article or summary buffers.
eec82323
LMI
5581If WHERE is `summary', the summary mode line format will be used."
5582 ;; Is this mode line one we keep updated?
16409b0b
GM
5583 (when (and (memq where gnus-updated-mode-lines)
5584 (symbol-value
5585 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323
LMI
5586 (let (mode-string)
5587 (save-excursion
5588 ;; We evaluate this in the summary buffer since these
5589 ;; variables are buffer-local to that buffer.
5590 (set-buffer gnus-summary-buffer)
23f87bed 5591 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
5592 ;; below.
5593 (let* ((mformat (symbol-value
5594 (intern
5595 (format "gnus-%s-mode-line-format-spec" where))))
23f87bed
MB
5596 (gnus-tmp-group-name (gnus-group-decoded-name
5597 gnus-newsgroup-name))
eec82323
LMI
5598 (gnus-tmp-article-number (or gnus-current-article 0))
5599 (gnus-tmp-unread gnus-newsgroup-unreads)
5600 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
5601 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
5602 (gnus-tmp-unread-and-unselected
5603 (cond ((and (zerop gnus-tmp-unread-and-unticked)
5604 (zerop gnus-tmp-unselected))
5605 "")
5606 ((zerop gnus-tmp-unselected)
5607 (format "{%d more}" gnus-tmp-unread-and-unticked))
5608 (t (format "{%d(+%d) more}"
5609 gnus-tmp-unread-and-unticked
5610 gnus-tmp-unselected))))
5611 (gnus-tmp-subject
5612 (if (and gnus-current-headers
5613 (vectorp gnus-current-headers))
5614 (gnus-mode-string-quote
5615 (mail-header-subject gnus-current-headers))
5616 ""))
5617 bufname-length max-len
23f87bed 5618 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
5619 (setq mode-string (eval mformat))
5620 (setq bufname-length (if (string-match "%b" mode-string)
5621 (- (length
5622 (buffer-name
5623 (if (eq where 'summary)
5624 nil
5625 (get-buffer gnus-article-buffer))))
5626 2)
5627 0))
5628 (setq max-len (max 4 (if gnus-mode-non-string-length
5629 (- (window-width)
5630 gnus-mode-non-string-length
5631 bufname-length)
5632 (length mode-string))))
5633 ;; We might have to chop a bit of the string off...
5634 (when (> (length mode-string) max-len)
5635 (setq mode-string
16409b0b 5636 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
5637 "...")))
5638 ;; Pad the mode string a bit.
5639 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
5640 ;; Update the mode line.
5641 (setq mode-line-buffer-identification
5642 (gnus-mode-line-buffer-identification (list mode-string)))
5643 (set-buffer-modified-p t))))
5644
5645(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
5646 "Go through the HEADERS list and add all Xrefs to a hash table.
5647The resulting hash table is returned, or nil if no Xrefs were found."
5648 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
5649 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
5650 (xref-hashtb (gnus-make-hashtable))
5651 start group entry number xrefs header)
5652 (while headers
5653 (setq header (pop headers))
5654 (when (and (setq xrefs (mail-header-xref header))
5655 (not (memq (setq number (mail-header-number header))
5656 unreads)))
5657 (setq start 0)
5658 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
5659 (setq start (match-end 0))
5660 (setq group (if prefix
5661 (concat prefix (substring xrefs (match-beginning 1)
5662 (match-end 1)))
5663 (substring xrefs (match-beginning 1) (match-end 1))))
5664 (setq number
e9bd5782 5665 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
5666 (match-end 2))))
5667 (if (setq entry (gnus-gethash group xref-hashtb))
5668 (setcdr entry (cons number (cdr entry)))
5669 (gnus-sethash group (cons number nil) xref-hashtb)))))
5670 (and start xref-hashtb)))
5671
5672(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
5673 "Look through all the headers and mark the Xrefs as read."
5674 (let ((virtual (gnus-virtual-group-p from-newsgroup))
5675 name entry info xref-hashtb idlist method nth4)
5676 (save-excursion
5677 (set-buffer gnus-group-buffer)
5678 (when (setq xref-hashtb
5679 (gnus-create-xref-hashtb from-newsgroup headers unreads))
5680 (mapatoms
5681 (lambda (group)
5682 (unless (string= from-newsgroup (setq name (symbol-name group)))
5683 (setq idlist (symbol-value group))
5684 ;; Dead groups are not updated.
5685 (and (prog1
5686 (setq entry (gnus-gethash name gnus-newsrc-hashtb)
5687 info (nth 2 entry))
5688 (when (stringp (setq nth4 (gnus-info-method info)))
5689 (setq nth4 (gnus-server-to-method nth4))))
5690 ;; Only do the xrefs if the group has the same
5691 ;; select method as the group we have just read.
5692 (or (gnus-methods-equal-p
5693 nth4 (gnus-find-method-for-group from-newsgroup))
5694 virtual
5695 (equal nth4 (setq method (gnus-find-method-for-group
5696 from-newsgroup)))
5697 (and (equal (car nth4) (car method))
5698 (equal (nth 1 nth4) (nth 1 method))))
5699 gnus-use-cross-reference
5700 (or (not (eq gnus-use-cross-reference t))
5701 virtual
5702 ;; Only do cross-references on subscribed
5703 ;; groups, if that is what is wanted.
5704 (<= (gnus-info-level info) gnus-level-subscribed))
5705 (gnus-group-make-articles-read name idlist))))
5706 xref-hashtb)))))
5707
6748645f
LMI
5708(defun gnus-compute-read-articles (group articles)
5709 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
5710 (info (nth 2 entry))
5711 (active (gnus-active group))
5712 ninfo)
5713 (when entry
16409b0b 5714 ;; First peel off all invalid article numbers.
6748645f
LMI
5715 (when active
5716 (let ((ids articles)
5717 id first)
5718 (while (setq id (pop ids))
5719 (when (and first (> id (cdr active)))
5720 ;; We'll end up in this situation in one particular
5721 ;; obscure situation. If you re-scan a group and get
5722 ;; a new article that is cross-posted to a different
5723 ;; group that has not been re-scanned, you might get
5724 ;; crossposted article that has a higher number than
5725 ;; Gnus believes possible. So we re-activate this
5726 ;; group as well. This might mean doing the
5727 ;; crossposting thingy will *increase* the number
5728 ;; of articles in some groups. Tsk, tsk.
5729 (setq active (or (gnus-activate-group group) active)))
5730 (when (or (> id (cdr active))
5731 (< id (car active)))
5732 (setq articles (delq id articles))))))
5733 ;; If the read list is nil, we init it.
5734 (if (and active
5735 (null (gnus-info-read info))
5736 (> (car active) 1))
5737 (setq ninfo (cons 1 (1- (car active))))
5738 (setq ninfo (gnus-info-read info)))
5739 ;; Then we add the read articles to the range.
5740 (gnus-add-to-range
5741 ninfo (setq articles (sort articles '<))))))
5742
eec82323
LMI
5743(defun gnus-group-make-articles-read (group articles)
5744 "Update the info of GROUP to say that ARTICLES are read."
5745 (let* ((num 0)
5746 (entry (gnus-gethash group gnus-newsrc-hashtb))
5747 (info (nth 2 entry))
5748 (active (gnus-active group))
5749 range)
6748645f
LMI
5750 (when entry
5751 (setq range (gnus-compute-read-articles group articles))
5752 (save-excursion
5753 (set-buffer gnus-group-buffer)
5754 (gnus-undo-register
5755 `(progn
5756 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
5757 (gnus-info-set-read ',info ',(gnus-info-read info))
5758 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 5759 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
5760 (gnus-group-update-group ,group t))))
5761 ;; Add the read articles to the range.
5762 (gnus-info-set-read info range)
23f87bed 5763 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
5764 ;; Then we have to re-compute how many unread
5765 ;; articles there are in this group.
5766 (when active
5767 (cond
5768 ((not range)
5769 (setq num (- (1+ (cdr active)) (car active))))
5770 ((not (listp (cdr range)))
5771 (setq num (- (cdr active) (- (1+ (cdr range))
5772 (car range)))))
5773 (t
5774 (while range
5775 (if (numberp (car range))
5776 (setq num (1+ num))
5777 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
5778 (setq range (cdr range)))
5779 (setq num (- (cdr active) num))))
5780 ;; Update the number of unread articles.
5781 (setcar entry num)
5782 ;; Update the group buffer.
23f87bed
MB
5783 (unless (gnus-ephemeral-group-p group)
5784 (gnus-group-update-group group t))))))
eec82323 5785
eec82323
LMI
5786(defvar gnus-newsgroup-none-id 0)
5787
5788(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
5789 (let ((cur nntp-server-buffer)
5790 (dependencies
5791 (or dependencies
5792 (save-excursion (set-buffer gnus-summary-buffer)
5793 gnus-newsgroup-dependencies)))
16409b0b
GM
5794 headers id end ref
5795 (mail-parse-charset gnus-newsgroup-charset)
5796 (mail-parse-ignored-charsets
5797 (save-excursion (condition-case nil
5798 (set-buffer gnus-summary-buffer)
5799 (error))
5800 gnus-newsgroup-ignored-charsets)))
eec82323
LMI
5801 (save-excursion
5802 (set-buffer nntp-server-buffer)
5803 ;; Translate all TAB characters into SPACE characters.
5804 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 5805 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 5806 (ietf-drums-unfold-fws)
6748645f 5807 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 5808 (let ((case-fold-search t)
6748645f 5809 in-reply-to header p lines chars)
eec82323
LMI
5810 (goto-char (point-min))
5811 ;; Search to the beginning of the next header. Error messages
5812 ;; do not begin with 2 or 3.
5813 (while (re-search-forward "^[23][0-9]+ " nil t)
5814 (setq id nil
5815 ref nil)
5816 ;; This implementation of this function, with nine
5817 ;; search-forwards instead of the one re-search-forward and
5818 ;; a case (which basically was the old function) is actually
5819 ;; about twice as fast, even though it looks messier. You
5820 ;; can't have everything, I guess. Speed and elegance
5821 ;; doesn't always go hand in hand.
5822 (setq
5823 header
5824 (vector
5825 ;; Number.
5826 (prog1
5827 (read cur)
5828 (end-of-line)
5829 (setq p (point))
5830 (narrow-to-region (point)
5831 (or (and (search-forward "\n.\n" nil t)
5832 (- (point) 2))
5833 (point))))
5834 ;; Subject.
5835 (progn
5836 (goto-char p)
23f87bed 5837 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
5838 (funcall gnus-decode-encoded-word-function
5839 (nnheader-header-value))
2bd3dcae 5840 "(none)"))
eec82323
LMI
5841 ;; From.
5842 (progn
5843 (goto-char p)
23f87bed 5844 (if (search-forward "\nfrom:" nil t)
16409b0b
GM
5845 (funcall gnus-decode-encoded-word-function
5846 (nnheader-header-value))
2bd3dcae 5847 "(nobody)"))
eec82323
LMI
5848 ;; Date.
5849 (progn
5850 (goto-char p)
23f87bed 5851 (if (search-forward "\ndate:" nil t)
eec82323
LMI
5852 (nnheader-header-value) ""))
5853 ;; Message-ID.
5854 (progn
5855 (goto-char p)
6748645f
LMI
5856 (setq id (if (re-search-forward
5857 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
5858 ;; We do it this way to make sure the Message-ID
5859 ;; is (somewhat) syntactically valid.
5860 (buffer-substring (match-beginning 1)
5861 (match-end 1))
eec82323
LMI
5862 ;; If there was no message-id, we just fake one
5863 ;; to make subsequent routines simpler.
5864 (nnheader-generate-fake-message-id))))
5865 ;; References.
5866 (progn
5867 (goto-char p)
23f87bed 5868 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
5869 (progn
5870 (setq end (point))
5871 (prog1
5872 (nnheader-header-value)
5873 (setq ref
5874 (buffer-substring
5875 (progn
5876 (end-of-line)
5877 (search-backward ">" end t)
5878 (1+ (point)))
5879 (progn
5880 (search-backward "<" end t)
5881 (point))))))
5882 ;; Get the references from the in-reply-to header if there
5883 ;; were no references and the in-reply-to header looks
5884 ;; promising.
23f87bed 5885 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
5886 (setq in-reply-to (nnheader-header-value))
5887 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
5888 (let (ref2)
5889 (setq ref (substring in-reply-to (match-beginning 0)
5890 (match-end 0)))
5891 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
5892 (setq ref2 (substring in-reply-to (match-beginning 0)
5893 (match-end 0)))
5894 (when (> (length ref2) (length ref))
5895 (setq ref ref2)))
5896 ref)
eec82323
LMI
5897 (setq ref nil))))
5898 ;; Chars.
6748645f
LMI
5899 (progn
5900 (goto-char p)
5901 (if (search-forward "\nchars: " nil t)
5902 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
5903 chars -1)
5904 -1))
eec82323
LMI
5905 ;; Lines.
5906 (progn
5907 (goto-char p)
5908 (if (search-forward "\nlines: " nil t)
a8151ef7 5909 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
5910 lines -1)
5911 -1))
eec82323
LMI
5912 ;; Xref.
5913 (progn
5914 (goto-char p)
23f87bed 5915 (and (search-forward "\nxref:" nil t)
16409b0b
GM
5916 (nnheader-header-value)))
5917 ;; Extra.
5918 (when gnus-extra-headers
5919 (let ((extra gnus-extra-headers)
5920 out)
5921 (while extra
5922 (goto-char p)
5923 (when (search-forward
23f87bed 5924 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
5925 (push (cons (car extra) (nnheader-header-value))
5926 out))
5927 (pop extra))
5928 out))))
eec82323
LMI
5929 (when (equal id ref)
5930 (setq ref nil))
6748645f
LMI
5931
5932 (when gnus-alter-header-function
5933 (funcall gnus-alter-header-function header)
5934 (setq id (mail-header-id header)
5935 ref (gnus-parent-id (mail-header-references header))))
5936
5937 (when (setq header
5938 (gnus-dependencies-add-header
5939 header dependencies force-new))
eec82323
LMI
5940 (push header headers))
5941 (goto-char (point-max))
5942 (widen))
5943 (nreverse headers)))))
5944
eec82323
LMI
5945;; Goes through the xover lines and returns a list of vectors
5946(defun gnus-get-newsgroup-headers-xover (sequence &optional
5947 force-new dependencies
5948 group also-fetch-heads)
16409b0b
GM
5949 "Parse the news overview data in the server buffer.
5950Return a list of headers that match SEQUENCE (see
5951`nntp-retrieve-headers')."
eec82323
LMI
5952 ;; Get the Xref when the users reads the articles since most/some
5953 ;; NNTP servers do not include Xrefs when using XOVER.
5954 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
5955 (let ((mail-parse-charset gnus-newsgroup-charset)
5956 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
5957 (cur nntp-server-buffer)
eec82323 5958 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
5959 (allp (cond
5960 ((eq gnus-read-all-available-headers t)
5961 t)
5962 ((stringp gnus-read-all-available-headers)
5963 (string-match gnus-read-all-available-headers group))
5964 (t
5965 nil)))
eec82323
LMI
5966 number headers header)
5967 (save-excursion
5968 (set-buffer nntp-server-buffer)
16409b0b 5969 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 5970 ;; Allow the user to mangle the headers before parsing them.
6748645f 5971 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 5972 (goto-char (point-min))
23f87bed
MB
5973 (gnus-parse-without-error
5974 (while (and (or sequence allp)
5975 (not (eobp)))
5976 (setq number (read cur))
5977 (when (not allp)
5978 (while (and sequence
5979 (< (car sequence) number))
5980 (setq sequence (cdr sequence))))
5981 (when (and (or allp
5982 (and sequence
5983 (eq number (car sequence))))
5984 (progn
5985 (setq sequence (cdr sequence))
5986 (setq header (inline
5987 (gnus-nov-parse-line
5988 number dependencies force-new)))))
5989 (push header headers))
5990 (forward-line 1)))
eec82323
LMI
5991 ;; A common bug in inn is that if you have posted an article and
5992 ;; then retrieves the active file, it will answer correctly --
5993 ;; the new article is included. However, a NOV entry for the
5994 ;; article may not have been generated yet, so this may fail.
5995 ;; We work around this problem by retrieving the last few
5996 ;; headers using HEAD.
5997 (if (or (not also-fetch-heads)
5998 (not sequence))
5999 ;; We (probably) got all the headers.
6000 (nreverse headers)
6001 (let ((gnus-nov-is-evil t))
6002 (nconc
6003 (nreverse headers)
23f87bed 6004 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6005 (gnus-get-newsgroup-headers))))))))
6006
6007(defun gnus-article-get-xrefs ()
6008 "Fill in the Xref value in `gnus-current-headers', if necessary.
6009This is meant to be called in `gnus-article-internal-prepare-hook'."
6010 (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
6011 gnus-current-headers)))
6012 (or (not gnus-use-cross-reference)
6013 (not headers)
6014 (and (mail-header-xref headers)
6015 (not (string= (mail-header-xref headers) "")))
6016 (let ((case-fold-search t)
6017 xref)
6018 (save-restriction
6019 (nnheader-narrow-to-headers)
6020 (goto-char (point-min))
16409b0b
GM
6021 (when (or (and (not (eobp))
6022 (eq (downcase (char-after)) ?x)
eec82323
LMI
6023 (looking-at "Xref:"))
6024 (search-forward "\nXref:" nil t))
6025 (goto-char (1+ (match-end 0)))
23f87bed 6026 (setq xref (buffer-substring (point) (gnus-point-at-eol)))
eec82323
LMI
6027 (mail-header-set-xref headers xref)))))))
6028
6029(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6030 "Find article ID and insert the summary line for that article.
6031OLD-HEADER can either be a header or a line number to insert
6032the subject line on."
6033 (let* ((line (and (numberp old-header) old-header))
6034 (old-header (and (vectorp old-header) old-header))
6035 (header (cond ((and old-header use-old-header)
16409b0b
GM
6036 old-header)
6037 ((and (numberp id)
6038 (gnus-number-to-header id))
6039 (gnus-number-to-header id))
6040 (t
6041 (gnus-read-header id))))
6042 (number (and (numberp id) id))
6043 d)
eec82323
LMI
6044 (when header
6045 ;; Rebuild the thread that this article is part of and go to the
6046 ;; article we have fetched.
6047 (when (and (not gnus-show-threads)
6048 old-header)
6748645f
LMI
6049 (when (and number
6050 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6051 (goto-char (gnus-data-pos d))
6052 (gnus-data-remove
6053 number
6054 (- (gnus-point-at-bol)
6055 (prog1
6056 (1+ (gnus-point-at-eol))
6057 (gnus-delete-line))))))
23f87bed
MB
6058 ;; Remove list identifiers from subject.
6059 (when gnus-list-identifiers
6060 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6061 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6062 (when old-header
6063 (mail-header-set-number header (mail-header-number old-header)))
6064 (setq gnus-newsgroup-sparse
6065 (delq (setq number (mail-header-number header))
6066 gnus-newsgroup-sparse))
6067 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6068 (push number gnus-newsgroup-limit)
6069 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6070 (gnus-summary-goto-subject number nil t))
6071 (when (and (numberp number)
6072 (> number 0))
6073 ;; We have to update the boundaries even if we can't fetch the
6074 ;; article if ID is a number -- so that the next `P' or `N'
6075 ;; command will fetch the previous (or next) article even
6076 ;; if the one we tried to fetch this time has been canceled.
6077 (when (> number gnus-newsgroup-end)
6078 (setq gnus-newsgroup-end number))
6079 (when (< number gnus-newsgroup-begin)
6080 (setq gnus-newsgroup-begin number))
6081 (setq gnus-newsgroup-unselected
6082 (delq number gnus-newsgroup-unselected)))
6083 ;; Report back a success?
6084 (and header (mail-header-number header))))
6085
6086;;; Process/prefix in the summary buffer
6087
6088(defun gnus-summary-work-articles (n)
6748645f
LMI
6089 "Return a list of articles to be worked upon.
6090The prefix argument, the list of process marked articles, and the
6091current article will be taken into consideration."
6092 (save-excursion
6093 (set-buffer gnus-summary-buffer)
6094 (cond
6095 (n
6096 ;; A numerical prefix has been given.
6097 (setq n (prefix-numeric-value n))
6098 (let ((backward (< n 0))
6099 (n (abs (prefix-numeric-value n)))
6100 articles article)
6101 (save-excursion
6102 (while
6103 (and (> n 0)
6104 (push (setq article (gnus-summary-article-number))
6105 articles)
6106 (if backward
6107 (gnus-summary-find-prev nil article)
6108 (gnus-summary-find-next nil article)))
6109 (decf n)))
6110 (nreverse articles)))
6111 ((and (gnus-region-active-p) (mark))
6112 (message "region active")
6113 ;; Work on the region between point and mark.
6114 (let ((max (max (point) (mark)))
6115 articles article)
6116 (save-excursion
6117 (goto-char (min (min (point) (mark))))
6118 (while
6119 (and
6120 (push (setq article (gnus-summary-article-number)) articles)
6121 (gnus-summary-find-next nil article)
6122 (< (point) max)))
6123 (nreverse articles))))
6124 (gnus-newsgroup-processable
6125 ;; There are process-marked articles present.
6126 ;; Save current state.
6127 (gnus-summary-save-process-mark)
6128 ;; Return the list.
6129 (reverse gnus-newsgroup-processable))
6130 (t
6131 ;; Just return the current article.
6132 (list (gnus-summary-article-number))))))
6133
6134(defmacro gnus-summary-iterate (arg &rest forms)
6135 "Iterate over the process/prefixed articles and do FORMS.
6136ARG is the interactive prefix given to the command. FORMS will be
6137executed with point over the summary line of the articles."
6138 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6139 `(let ((,articles (gnus-summary-work-articles ,arg)))
6140 (while ,articles
6141 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6142 ,@forms
6143 (pop ,articles)))))
6748645f
LMI
6144
6145(put 'gnus-summary-iterate 'lisp-indent-function 1)
6146(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6147
6148(defun gnus-summary-save-process-mark ()
6149 "Push the current set of process marked articles on the stack."
6150 (interactive)
6151 (push (copy-sequence gnus-newsgroup-processable)
6152 gnus-newsgroup-process-stack))
6153
6154(defun gnus-summary-kill-process-mark ()
6155 "Push the current set of process marked articles on the stack and unmark."
6156 (interactive)
6157 (gnus-summary-save-process-mark)
6158 (gnus-summary-unmark-all-processable))
6159
6160(defun gnus-summary-yank-process-mark ()
6161 "Pop the last process mark state off the stack and restore it."
6162 (interactive)
6163 (unless gnus-newsgroup-process-stack
6164 (error "Empty mark stack"))
6165 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6166
6167(defun gnus-summary-process-mark-set (set)
6168 "Make SET into the current process marked articles."
6169 (gnus-summary-unmark-all-processable)
6170 (while set
6171 (gnus-summary-set-process-mark (pop set))))
6172
6173;;; Searching and stuff
6174
6175(defun gnus-summary-search-group (&optional backward use-level)
6176 "Search for next unread newsgroup.
6177If optional argument BACKWARD is non-nil, search backward instead."
6178 (save-excursion
6179 (set-buffer gnus-group-buffer)
6180 (when (gnus-group-search-forward
6181 backward nil (if use-level (gnus-group-group-level) nil))
6182 (gnus-group-group-name))))
6183
6184(defun gnus-summary-best-group (&optional exclude-group)
6185 "Find the name of the best unread group.
6186If EXCLUDE-GROUP, do not go to this group."
6187 (save-excursion
6188 (set-buffer gnus-group-buffer)
6189 (save-excursion
6190 (gnus-group-best-unread-group exclude-group))))
6191
23f87bed
MB
6192(defun gnus-summary-find-next (&optional unread article backward)
6193 (if backward
6194 (gnus-summary-find-prev unread article)
eec82323
LMI
6195 (let* ((dummy (gnus-summary-article-intangible-p))
6196 (article (or article (gnus-summary-article-number)))
23f87bed 6197 (data (gnus-data-find-list article))
eec82323
LMI
6198 result)
6199 (when (and (not dummy)
6200 (or (not gnus-summary-check-current)
6201 (not unread)
23f87bed
MB
6202 (not (gnus-data-unread-p (car data)))))
6203 (setq data (cdr data)))
eec82323
LMI
6204 (when (setq result
6205 (if unread
6206 (progn
23f87bed
MB
6207 (while data
6208 (unless (memq (gnus-data-number (car data))
6209 (cond
6210 ((eq gnus-auto-goto-ignores
6211 'always-undownloaded)
6212 gnus-newsgroup-undownloaded)
6213 (gnus-plugged
6214 nil)
6215 ((eq gnus-auto-goto-ignores
6216 'unfetched)
6217 gnus-newsgroup-unfetched)
6218 ((eq gnus-auto-goto-ignores
6219 'undownloaded)
6220 gnus-newsgroup-undownloaded)))
6221 (when (gnus-data-unread-p (car data))
6222 (setq result (car data)
6223 data nil)))
6224 (setq data (cdr data)))
eec82323 6225 result)
23f87bed 6226 (car data)))
eec82323
LMI
6227 (goto-char (gnus-data-pos result))
6228 (gnus-data-number result)))))
6229
6230(defun gnus-summary-find-prev (&optional unread article)
6231 (let* ((eobp (eobp))
6232 (article (or article (gnus-summary-article-number)))
23f87bed 6233 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6234 result)
6235 (when (and (not eobp)
6236 (or (not gnus-summary-check-current)
6237 (not unread)
23f87bed
MB
6238 (not (gnus-data-unread-p (car data)))))
6239 (setq data (cdr data)))
eec82323
LMI
6240 (when (setq result
6241 (if unread
6242 (progn
23f87bed
MB
6243 (while data
6244 (unless (memq (gnus-data-number (car data))
6245 (cond
6246 ((eq gnus-auto-goto-ignores
6247 'always-undownloaded)
6248 gnus-newsgroup-undownloaded)
6249 (gnus-plugged
6250 nil)
6251 ((eq gnus-auto-goto-ignores
6252 'unfetched)
6253 gnus-newsgroup-unfetched)
6254 ((eq gnus-auto-goto-ignores
6255 'undownloaded)
6256 gnus-newsgroup-undownloaded)))
6257 (when (gnus-data-unread-p (car data))
6258 (setq result (car data)
6259 data nil)))
6260 (setq data (cdr data)))
eec82323 6261 result)
23f87bed 6262 (car data)))
eec82323
LMI
6263 (goto-char (gnus-data-pos result))
6264 (gnus-data-number result))))
6265
6266(defun gnus-summary-find-subject (subject &optional unread backward article)
6267 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6268 (article (or article (gnus-summary-article-number)))
6269 (articles (gnus-data-list backward))
6270 (arts (gnus-data-find-list article articles))
6271 result)
6272 (when (or (not gnus-summary-check-current)
6273 (not unread)
6274 (not (gnus-data-unread-p (car arts))))
6275 (setq arts (cdr arts)))
6276 (while arts
6277 (and (or (not unread)
6278 (gnus-data-unread-p (car arts)))
6279 (vectorp (gnus-data-header (car arts)))
6280 (gnus-subject-equal
6281 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6282 (setq result (car arts)
6283 arts nil))
6284 (setq arts (cdr arts)))
6285 (and result
6286 (goto-char (gnus-data-pos result))
6287 (gnus-data-number result))))
6288
6289(defun gnus-summary-search-forward (&optional unread subject backward)
6290 "Search forward for an article.
6291If UNREAD, look for unread articles. If SUBJECT, look for
6292articles with that subject. If BACKWARD, search backward instead."
6293 (cond (subject (gnus-summary-find-subject subject unread backward))
6294 (backward (gnus-summary-find-prev unread))
6295 (t (gnus-summary-find-next unread))))
6296
6297(defun gnus-recenter (&optional n)
6298 "Center point in window and redisplay frame.
6299Also do horizontal recentering."
6300 (interactive "P")
6301 (when (and gnus-auto-center-summary
6302 (not (eq gnus-auto-center-summary 'vertical)))
6303 (gnus-horizontal-recenter))
6304 (recenter n))
6305
6306(defun gnus-summary-recenter ()
6307 "Center point in the summary window.
6308If `gnus-auto-center-summary' is nil, or the article buffer isn't
6309displayed, no centering will be performed."
6310 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6311 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6312 (interactive)
23f87bed
MB
6313 ;; The user has to want it.
6314 (when gnus-auto-center-summary
6315 (let* ((top (cond ((< (window-height) 4) 0)
6316 ((< (window-height) 7) 1)
6317 (t (if (numberp gnus-auto-center-summary)
6318 gnus-auto-center-summary
6319 2))))
6320 (height (1- (window-height)))
6321 (bottom (save-excursion (goto-char (point-max))
6322 (forward-line (- height))
6323 (point)))
6324 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6325 (when (get-buffer-window gnus-article-buffer)
6326 ;; Only do recentering when the article buffer is displayed,
6327 ;; Set the window start to either `bottom', which is the biggest
6328 ;; possible valid number, or the second line from the top,
6329 ;; whichever is the least.
db7ebd73
MB
6330 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
6331 (if (> bottom top-pos)
6332 ;; Keep the second line from the top visible
6333 (set-window-start window top-pos t)
6334 ;; Try to keep the bottom line visible; if it's partially
6335 ;; obscured, either scroll one more line to make it fully
6336 ;; visible, or revert to using TOP-POS.
6337 (save-excursion
6338 (goto-char (point-max))
6339 (forward-line -1)
6340 (let ((last-line-start (point)))
6341 (goto-char bottom)
6342 (set-window-start window (point) t)
6343 (when (not (pos-visible-in-window-p last-line-start window))
6344 (forward-line 1)
6345 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6346 ;; Do horizontal recentering while we're at it.
6347 (when (and (get-buffer-window (current-buffer) t)
6348 (not (eq gnus-auto-center-summary 'vertical)))
6349 (let ((selected (selected-window)))
6350 (select-window (get-buffer-window (current-buffer) t))
6351 (gnus-summary-position-point)
6352 (gnus-horizontal-recenter)
6353 (select-window selected))))))
6354
6355(defun gnus-summary-jump-to-group (newsgroup)
6356 "Move point to NEWSGROUP in group mode buffer."
6357 ;; Keep update point of group mode buffer if visible.
6358 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6359 (save-window-excursion
6360 ;; Take care of tree window mode.
6361 (when (get-buffer-window gnus-group-buffer)
6362 (pop-to-buffer gnus-group-buffer))
6363 (gnus-group-jump-to-group newsgroup))
6364 (save-excursion
6365 ;; Take care of tree window mode.
6366 (if (get-buffer-window gnus-group-buffer)
6367 (pop-to-buffer gnus-group-buffer)
6368 (set-buffer gnus-group-buffer))
6369 (gnus-group-jump-to-group newsgroup))))
6370
6371;; This function returns a list of article numbers based on the
6372;; difference between the ranges of read articles in this group and
6373;; the range of active articles.
6374(defun gnus-list-of-unread-articles (group)
6375 (let* ((read (gnus-info-read (gnus-get-info group)))
6376 (active (or (gnus-active group) (gnus-activate-group group)))
6377 (last (cdr active))
6378 first nlast unread)
6379 ;; If none are read, then all are unread.
6380 (if (not read)
6381 (setq first (car active))
6382 ;; If the range of read articles is a single range, then the
6383 ;; first unread article is the article after the last read
6384 ;; article. Sounds logical, doesn't it?
16409b0b
GM
6385 (if (and (not (listp (cdr read)))
6386 (or (< (car read) (car active))
6387 (progn (setq read (list read))
6388 nil)))
6748645f 6389 (setq first (max (car active) (1+ (cdr read))))
eec82323
LMI
6390 ;; `read' is a list of ranges.
6391 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6392 (caar read)))
6393 1)
6748645f 6394 (setq first (car active)))
eec82323
LMI
6395 (while read
6396 (when first
6397 (while (< first nlast)
54506618
MB
6398 (setq unread (cons first unread)
6399 first (1+ first))))
eec82323
LMI
6400 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6401 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6402 (setq read (cdr read)))))
6403 ;; And add the last unread articles.
6404 (while (<= first last)
54506618
MB
6405 (setq unread (cons first unread)
6406 first (1+ first)))
eec82323 6407 ;; Return the list of unread articles.
6748645f 6408 (delq 0 (nreverse unread))))
eec82323
LMI
6409
6410(defun gnus-list-of-read-articles (group)
6411 "Return a list of unread, unticked and non-dormant articles."
6412 (let* ((info (gnus-get-info group))
6413 (marked (gnus-info-marks info))
6414 (active (gnus-active group)))
6415 (and info active
23f87bed
MB
6416 (gnus-list-range-difference
6417 (gnus-list-range-difference
6418 (gnus-sorted-complement
6419 (gnus-uncompress-range active)
6420 (gnus-list-of-unread-articles group))
6421 (cdr (assq 'dormant marked)))
6422 (cdr (assq 'tick marked))))))
eec82323 6423
54506618
MB
6424;; This function returns a sequence of article numbers based on the
6425;; difference between the ranges of read articles in this group and
6426;; the range of active articles.
6427(defun gnus-sequence-of-unread-articles (group)
6428 (let* ((read (gnus-info-read (gnus-get-info group)))
6429 (active (or (gnus-active group) (gnus-activate-group group)))
6430 (last (cdr active))
6431 first nlast unread)
6432 ;; If none are read, then all are unread.
6433 (if (not read)
6434 (setq first (car active))
6435 ;; If the range of read articles is a single range, then the
6436 ;; first unread article is the article after the last read
6437 ;; article. Sounds logical, doesn't it?
6438 (if (and (not (listp (cdr read)))
6439 (or (< (car read) (car active))
6440 (progn (setq read (list read))
6441 nil)))
6442 (setq first (max (car active) (1+ (cdr read))))
6443 ;; `read' is a list of ranges.
6444 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6445 (caar read)))
6446 1)
6447 (setq first (car active)))
6448 (while read
6449 (when first
6450 (push (cons first nlast) unread))
6451 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6452 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6453 (setq read (cdr read)))))
6454 ;; And add the last unread articles.
6455 (cond ((< first last)
6456 (push (cons first last) unread))
6457 ((= first last)
6458 (push first unread)))
6459 ;; Return the sequence of unread articles.
6460 (delq 0 (nreverse unread))))
6461
eec82323
LMI
6462;; Various summary commands
6463
6748645f
LMI
6464(defun gnus-summary-select-article-buffer ()
6465 "Reconfigure windows to show article buffer."
6466 (interactive)
6467 (if (not (gnus-buffer-live-p gnus-article-buffer))
6468 (error "There is no article buffer for this summary buffer")
6469 (gnus-configure-windows 'article)
6470 (select-window (get-buffer-window gnus-article-buffer))))
6471
eec82323
LMI
6472(defun gnus-summary-universal-argument (arg)
6473 "Perform any operation on all articles that are process/prefixed."
6474 (interactive "P")
eec82323
LMI
6475 (let ((articles (gnus-summary-work-articles arg))
6476 func article)
6477 (if (eq
6478 (setq
6479 func
6480 (key-binding
6481 (read-key-sequence
6482 (substitute-command-keys
16409b0b 6483 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6484 'undefined)
6485 (gnus-error 1 "Undefined key")
6486 (save-excursion
6487 (while articles
6488 (gnus-summary-goto-subject (setq article (pop articles)))
6489 (let (gnus-newsgroup-processable)
6490 (command-execute func))
6491 (gnus-summary-remove-process-mark article)))))
6492 (gnus-summary-position-point))
6493
6494(defun gnus-summary-toggle-truncation (&optional arg)
6495 "Toggle truncation of summary lines.
23f87bed 6496With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6497 (interactive "P")
6498 (setq truncate-lines
6499 (if (null arg) (not truncate-lines)
6500 (> (prefix-numeric-value arg) 0)))
6501 (redraw-display))
6502
23f87bed
MB
6503(defun gnus-summary-find-for-reselect ()
6504 "Return the number of an article to stay on across a reselect.
6505The current article is considered, then following articles, then previous
6506articles. An article is sought which is not cancelled and isn't a temporary
6507insertion from another group. If there's no such then return a dummy 0."
6508 (let (found)
6509 (dolist (rev '(nil t))
6510 (unless found ; don't demand the reverse list if we don't need it
6511 (let ((data (gnus-data-find-list
6512 (gnus-summary-article-number) (gnus-data-list rev))))
6513 (while (and data (not found))
6514 (if (and (< 0 (gnus-data-number (car data)))
6515 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6516 (setq found (gnus-data-number (car data))))
6517 (setq data (cdr data))))))
6518 (or found 0)))
6519
eec82323
LMI
6520(defun gnus-summary-reselect-current-group (&optional all rescan)
6521 "Exit and then reselect the current newsgroup.
6522The prefix argument ALL means to select all articles."
6523 (interactive "P")
eec82323
LMI
6524 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6525 (error "Ephemeral groups can't be reselected"))
23f87bed 6526 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6527 (group gnus-newsgroup-name))
6528 (setq gnus-newsgroup-begin nil)
23f87bed 6529 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6530 ;; We have to adjust the point of group mode buffer because
6531 ;; point was moved to the next unread newsgroup by exiting.
6532 (gnus-summary-jump-to-group group)
6533 (when rescan
6534 (save-excursion
6535 (gnus-group-get-new-news-this-group 1)))
6536 (gnus-group-read-group all t)
6537 (gnus-summary-goto-subject current-subject nil t)))
6538
6539(defun gnus-summary-rescan-group (&optional all)
6540 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6541 (interactive "P")
6542 (gnus-summary-reselect-current-group all t))
6543
6544(defun gnus-summary-update-info (&optional non-destructive)
6545 (save-excursion
6546 (let ((group gnus-newsgroup-name))
6748645f
LMI
6547 (when group
6548 (when gnus-newsgroup-kill-headers
6549 (setq gnus-newsgroup-killed
6550 (gnus-compress-sequence
23f87bed
MB
6551 (gnus-sorted-union
6552 (gnus-list-range-intersection
6553 gnus-newsgroup-unselected gnus-newsgroup-killed)
6554 gnus-newsgroup-unreads)
6748645f
LMI
6555 t)))
6556 (unless (listp (cdr gnus-newsgroup-killed))
6557 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
6558 (let ((headers gnus-newsgroup-headers))
6559 ;; Set the new ranges of read articles.
6560 (save-excursion
6561 (set-buffer gnus-group-buffer)
6562 (gnus-undo-force-boundary))
6563 (gnus-update-read-articles
23f87bed
MB
6564 group (gnus-sorted-union
6565 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
6566 ;; Set the current article marks.
6567 (let ((gnus-newsgroup-scored
6568 (if (and (not gnus-save-score)
6569 (not non-destructive))
6570 nil
6571 gnus-newsgroup-scored)))
6572 (save-excursion
6573 (gnus-update-marks)))
6574 ;; Do the cross-ref thing.
6575 (when gnus-use-cross-reference
6576 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
6577 ;; Do not switch windows but change the buffer to work.
a8151ef7 6578 (set-buffer gnus-group-buffer)
6748645f
LMI
6579 (unless (gnus-ephemeral-group-p group)
6580 (gnus-group-update-group group)))))))
eec82323
LMI
6581
6582(defun gnus-summary-save-newsrc (&optional force)
6583 "Save the current number of read/marked articles in the dribble buffer.
6584The dribble buffer will then be saved.
6585If FORCE (the prefix), also save the .newsrc file(s)."
6586 (interactive "P")
6587 (gnus-summary-update-info t)
6588 (if force
6589 (gnus-save-newsrc-file)
6590 (gnus-dribble-save)))
6591
23f87bed 6592(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 6593 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 6594`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
6595 (interactive)
6596 (gnus-set-global-variables)
16409b0b
GM
6597 (when (gnus-buffer-live-p gnus-article-buffer)
6598 (save-excursion
6599 (set-buffer gnus-article-buffer)
6600 (mm-destroy-parts gnus-article-mime-handles)
6601 ;; Set it to nil for safety reason.
6602 (setq gnus-article-mime-handle-alist nil)
6603 (setq gnus-article-mime-handles nil)))
eec82323 6604 (gnus-kill-save-kill-buffer)
6748645f 6605 (gnus-async-halt-prefetch)
eec82323
LMI
6606 (let* ((group gnus-newsgroup-name)
6607 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 6608 (gnus-group-is-exiting-p t)
eec82323 6609 (mode major-mode)
23f87bed 6610 (group-point nil)
eec82323 6611 (buf (current-buffer)))
16409b0b
GM
6612 (unless quit-config
6613 ;; Do adaptive scoring, and possibly save score files.
6614 (when gnus-newsgroup-adaptive
6615 (gnus-score-adaptive))
6616 (when gnus-use-scoring
6617 (gnus-score-save)))
6748645f 6618 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
6619 ;; If we have several article buffers, we kill them at exit.
6620 (unless gnus-single-article-buffer
6621 (gnus-kill-buffer gnus-original-article-buffer)
6622 (setq gnus-article-current nil))
6623 (when gnus-use-cache
6624 (gnus-cache-possibly-remove-articles)
6625 (gnus-cache-save-buffers))
6626 (gnus-async-prefetch-remove-group group)
6627 (when gnus-suppress-duplicates
6628 (gnus-dup-enter-articles))
6629 (when gnus-use-trees
6630 (gnus-tree-close group))
16409b0b
GM
6631 (when gnus-use-cache
6632 (gnus-cache-write-active))
6748645f
LMI
6633 ;; Remove entries for this group.
6634 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
6635 ;; Make all changes in this group permanent.
6636 (unless quit-config
6748645f 6637 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 6638 (gnus-summary-update-info))
eec82323
LMI
6639 (gnus-close-group group)
6640 ;; Make sure where we were, and go to next newsgroup.
6641 (set-buffer gnus-group-buffer)
6642 (unless quit-config
6643 (gnus-group-jump-to-group group))
6748645f
LMI
6644 (gnus-run-hooks 'gnus-summary-exit-hook)
6645 (unless (or quit-config
6646 ;; If this group has disappeared from the summary
6647 ;; buffer, don't skip forwards.
6648 (not (string= group (gnus-group-group-name))))
eec82323 6649 (gnus-group-next-unread-group 1))
a8151ef7 6650 (setq group-point (point))
eec82323
LMI
6651 (if temporary
6652 nil ;Nothing to do.
6653 ;; If we have several article buffers, we kill them at exit.
6654 (unless gnus-single-article-buffer
6655 (gnus-kill-buffer gnus-article-buffer)
6656 (gnus-kill-buffer gnus-original-article-buffer)
6657 (setq gnus-article-current nil))
6658 (set-buffer buf)
6659 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
6660 (progn
6661 (gnus-deaden-summary)
6662 (setq mode nil))
eec82323
LMI
6663 ;; We set all buffer-local variables to nil. It is unclear why
6664 ;; this is needed, but if we don't, buffer-local variables are
6665 ;; not garbage-collected, it seems. This would the lead to en
6666 ;; ever-growing Emacs.
6667 (gnus-summary-clear-local-variables)
23f87bed
MB
6668 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6669 (gnus-summary-clear-local-variables))
eec82323
LMI
6670 (when (get-buffer gnus-article-buffer)
6671 (bury-buffer gnus-article-buffer))
6672 ;; We clear the global counterparts of the buffer-local
6673 ;; variables as well, just to be on the safe side.
6674 (set-buffer gnus-group-buffer)
6675 (gnus-summary-clear-local-variables)
23f87bed
MB
6676 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6677 (gnus-summary-clear-local-variables))
eec82323
LMI
6678 ;; Return to group mode buffer.
6679 (when (eq mode 'gnus-summary-mode)
6680 (gnus-kill-buffer buf)))
6681 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
6682 (set-buffer gnus-group-buffer)
6683 (if quit-config
6684 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
6685 (goto-char group-point)
6686 ;; If gnus-group-buffer is already displayed, make sure we also move
6687 ;; the cursor in the window that displays it.
6688 (let ((win (get-buffer-window (current-buffer) 0)))
6689 (if win (set-window-point win (point))))
d61c212b 6690 (unless leave-hidden
4e90f2b9 6691 (gnus-configure-windows 'group 'force)))
6748645f 6692 ;; Clear the current group name.
eec82323
LMI
6693 (unless quit-config
6694 (setq gnus-newsgroup-name nil)))))
6695
6696(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
6697(defun gnus-summary-exit-no-update (&optional no-questions)
6698 "Quit reading current newsgroup without updating read article info."
6699 (interactive)
eec82323 6700 (let* ((group gnus-newsgroup-name)
23f87bed
MB
6701 (gnus-group-is-exiting-p t)
6702 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
6703 (quit-config (gnus-group-quit-config group)))
6704 (when (or no-questions
6705 gnus-expert-user
6706 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 6707 (gnus-async-halt-prefetch)
23f87bed 6708 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b
GM
6709 (when (gnus-buffer-live-p gnus-article-buffer)
6710 (save-excursion
6711 (set-buffer gnus-article-buffer)
6712 (mm-destroy-parts gnus-article-mime-handles)
6713 ;; Set it to nil for safety reason.
6714 (setq gnus-article-mime-handle-alist nil)
6715 (setq gnus-article-mime-handles nil)))
eec82323
LMI
6716 ;; If we have several article buffers, we kill them at exit.
6717 (unless gnus-single-article-buffer
6718 (gnus-kill-buffer gnus-article-buffer)
6719 (gnus-kill-buffer gnus-original-article-buffer)
6720 (setq gnus-article-current nil))
6721 (if (not gnus-kill-summary-on-exit)
6722 (gnus-deaden-summary)
6723 (gnus-close-group group)
6724 (gnus-summary-clear-local-variables)
23f87bed
MB
6725 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6726 (gnus-summary-clear-local-variables))
eec82323
LMI
6727 (set-buffer gnus-group-buffer)
6728 (gnus-summary-clear-local-variables)
23f87bed
MB
6729 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
6730 (gnus-summary-clear-local-variables))
6731 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
6732 (unless gnus-single-article-buffer
6733 (setq gnus-article-current nil))
6734 (when gnus-use-trees
6735 (gnus-tree-close group))
6736 (gnus-async-prefetch-remove-group group)
6737 (when (get-buffer gnus-article-buffer)
6738 (bury-buffer gnus-article-buffer))
6739 ;; Return to the group buffer.
6740 (gnus-configure-windows 'group 'force)
6741 ;; Clear the current group name.
6742 (setq gnus-newsgroup-name nil)
23f87bed
MB
6743 (unless (gnus-ephemeral-group-p group)
6744 (gnus-group-update-group group))
eec82323
LMI
6745 (when (equal (gnus-group-group-name) group)
6746 (gnus-group-next-unread-group 1))
6747 (when quit-config
23f87bed 6748 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
6749
6750(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
6751 "Handle movement when leaving an ephemeral group.
6752The state which existed when entering the ephemeral is reset."
eec82323
LMI
6753 (if (not (buffer-name (car quit-config)))
6754 (gnus-configure-windows 'group 'force)
6755 (set-buffer (car quit-config))
6756 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
6757 (gnus-set-global-variables))
6758 ((eq major-mode 'gnus-article-mode)
6759 (save-excursion
6760 ;; The `gnus-summary-buffer' variable may point
6761 ;; to the old summary buffer when using a single
6762 ;; article buffer.
6763 (unless (gnus-buffer-live-p gnus-summary-buffer)
6764 (set-buffer gnus-group-buffer))
6765 (set-buffer gnus-summary-buffer)
6766 (gnus-set-global-variables))))
eec82323 6767 (if (or (eq (cdr quit-config) 'article)
23f87bed
MB
6768 (eq (cdr quit-config) 'pick))
6769 (progn
6770 ;; The current article may be from the ephemeral group
6771 ;; thus it is best that we reload this article
6772 ;;
6773 ;; If we're exiting from a large digest, this can be
6774 ;; extremely slow. So, it's better not to reload it. -- jh.
6775 ;;(gnus-summary-show-article)
6776 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
6777 (gnus-configure-windows 'pick 'force)
6778 (gnus-configure-windows (cdr quit-config) 'force)))
eec82323
LMI
6779 (gnus-configure-windows (cdr quit-config) 'force))
6780 (when (eq major-mode 'gnus-summary-mode)
6781 (gnus-summary-next-subject 1 nil t)
6782 (gnus-summary-recenter)
6783 (gnus-summary-position-point))))
6784
6785;;; Dead summaries.
6786
6787(defvar gnus-dead-summary-mode-map nil)
6788
6789(unless gnus-dead-summary-mode-map
6790 (setq gnus-dead-summary-mode-map (make-keymap))
6791 (suppress-keymap gnus-dead-summary-mode-map)
6792 (substitute-key-definition
6793 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
23f87bed
MB
6794 (dolist (key '("\C-d" "\r" "\177" [delete]))
6795 (define-key gnus-dead-summary-mode-map
6796 key 'gnus-summary-wake-up-the-dead))
6797 (dolist (key '("q" "Q"))
6798 (define-key gnus-dead-summary-mode-map key 'bury-buffer)))
eec82323
LMI
6799
6800(defvar gnus-dead-summary-mode nil
6801 "Minor mode for Gnus summary buffers.")
6802
6803(defun gnus-dead-summary-mode (&optional arg)
6804 "Minor mode for Gnus summary buffers."
6805 (interactive "P")
6806 (when (eq major-mode 'gnus-summary-mode)
6807 (make-local-variable 'gnus-dead-summary-mode)
6808 (setq gnus-dead-summary-mode
6809 (if (null arg) (not gnus-dead-summary-mode)
6810 (> (prefix-numeric-value arg) 0)))
6811 (when gnus-dead-summary-mode
a8151ef7
LMI
6812 (gnus-add-minor-mode
6813 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI
6814
6815(defun gnus-deaden-summary ()
6816 "Make the current summary buffer into a dead summary buffer."
6817 ;; Kill any previous dead summary buffer.
6818 (when (and gnus-dead-summary
6819 (buffer-name gnus-dead-summary))
6820 (save-excursion
6821 (set-buffer gnus-dead-summary)
6822 (when gnus-dead-summary-mode
6823 (kill-buffer (current-buffer)))))
6824 ;; Make this the current dead summary.
6825 (setq gnus-dead-summary (current-buffer))
6826 (gnus-dead-summary-mode 1)
6827 (let ((name (buffer-name)))
6828 (when (string-match "Summary" name)
6829 (rename-buffer
6830 (concat (substring name 0 (match-beginning 0)) "Dead "
6831 (substring name (match-beginning 0)))
16409b0b
GM
6832 t)
6833 (bury-buffer))))
eec82323
LMI
6834
6835(defun gnus-kill-or-deaden-summary (buffer)
6836 "Kill or deaden the summary BUFFER."
6748645f
LMI
6837 (save-excursion
6838 (when (and (buffer-name buffer)
6839 (not gnus-single-article-buffer))
6840 (save-excursion
6841 (set-buffer buffer)
6842 (gnus-kill-buffer gnus-article-buffer)
6843 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
6844 (cond
6845 ;; Kill the buffer.
6846 (gnus-kill-summary-on-exit
6847 (when (and gnus-use-trees
6848 (gnus-buffer-exists-p buffer))
6849 (save-excursion
6850 (set-buffer buffer)
6851 (gnus-tree-close gnus-newsgroup-name)))
6852 (gnus-kill-buffer buffer))
6853 ;; Deaden the buffer.
6854 ((gnus-buffer-exists-p buffer)
6855 (save-excursion
6856 (set-buffer buffer)
6857 (gnus-deaden-summary))))))
eec82323
LMI
6858
6859(defun gnus-summary-wake-up-the-dead (&rest args)
6860 "Wake up the dead summary buffer."
6861 (interactive)
6862 (gnus-dead-summary-mode -1)
6863 (let ((name (buffer-name)))
6864 (when (string-match "Dead " name)
6865 (rename-buffer
6866 (concat (substring name 0 (match-beginning 0))
6867 (substring name (match-end 0)))
6868 t)))
6869 (gnus-message 3 "This dead summary is now alive again"))
6870
6871;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
6872(defun gnus-summary-fetch-faq (&optional faq-dir)
6873 "Fetch the FAQ for the current group.
6874If FAQ-DIR (the prefix), prompt for a directory to search for the faq
6875in."
6876 (interactive
6877 (list
6878 (when current-prefix-arg
6879 (completing-read
8f688cb0 6880 "FAQ dir: " (and (listp gnus-group-faq-directory)
a8151ef7
LMI
6881 (mapcar (lambda (file) (list file))
6882 gnus-group-faq-directory))))))
eec82323
LMI
6883 (let (gnus-faq-buffer)
6884 (when (setq gnus-faq-buffer
6885 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
6886 (gnus-configure-windows 'summary-faq))))
6887
6888;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
6889(defun gnus-summary-describe-group (&optional force)
6890 "Describe the current newsgroup."
6891 (interactive "P")
6892 (gnus-group-describe-group force gnus-newsgroup-name))
6893
6894(defun gnus-summary-describe-briefly ()
6895 "Describe summary mode commands briefly."
6896 (interactive)
16409b0b 6897 (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
6898
6899;; Walking around group mode buffer from summary mode.
6900
6901(defun gnus-summary-next-group (&optional no-article target-group backward)
6902 "Exit current newsgroup and then select next unread newsgroup.
6903If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 6904initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
6905previous group instead."
6906 (interactive "P")
eec82323
LMI
6907 ;; Stop pre-fetching.
6908 (gnus-async-halt-prefetch)
6909 (let ((current-group gnus-newsgroup-name)
6910 (current-buffer (current-buffer))
6911 entered)
6912 ;; First we semi-exit this group to update Xrefs and all variables.
6913 ;; We can't do a real exit, because the window conf must remain
6914 ;; the same in case the user is prompted for info, and we don't
6915 ;; want the window conf to change before that...
6916 (gnus-summary-exit t)
6917 (while (not entered)
6918 ;; Then we find what group we are supposed to enter.
6919 (set-buffer gnus-group-buffer)
6920 (gnus-group-jump-to-group current-group)
6921 (setq target-group
6922 (or target-group
6923 (if (eq gnus-keep-same-level 'best)
6924 (gnus-summary-best-group gnus-newsgroup-name)
6925 (gnus-summary-search-group backward gnus-keep-same-level))))
6926 (if (not target-group)
6927 ;; There are no further groups, so we return to the group
6928 ;; buffer.
6929 (progn
6930 (gnus-message 5 "Returning to the group buffer")
6931 (setq entered t)
6932 (when (gnus-buffer-live-p current-buffer)
6933 (set-buffer current-buffer)
6934 (gnus-summary-exit))
6748645f 6935 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
6936 ;; We try to enter the target group.
6937 (gnus-group-jump-to-group target-group)
6938 (let ((unreads (gnus-group-group-unread)))
6939 (if (and (or (eq t unreads)
6940 (and unreads (not (zerop unreads))))
23f87bed
MB
6941 (gnus-summary-read-group
6942 target-group nil no-article
6943 (and (buffer-name current-buffer) current-buffer)
6944 nil backward))
eec82323
LMI
6945 (setq entered t)
6946 (setq current-group target-group
6947 target-group nil)))))))
6948
6949(defun gnus-summary-prev-group (&optional no-article)
6950 "Exit current newsgroup and then select previous unread newsgroup.
6951If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
6952 (interactive "P")
6953 (gnus-summary-next-group no-article nil t))
6954
6955;; Walking around summary lines.
6956
23f87bed
MB
6957(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
6958 "Go to the first subject satisfying any non-nil constraint.
6959If UNREAD is non-nil, the article should be unread.
6960If UNDOWNLOADED is non-nil, the article should be undownloaded.
6961If UNSEEN is non-nil, the article should be unseen.
6962Returns the article selected or nil if there are no matching articles."
eec82323 6963 (interactive "P")
23f87bed
MB
6964 (cond
6965 ;; Empty summary.
6966 ((null gnus-newsgroup-data)
6967 (gnus-message 3 "No articles in the group")
6968 nil)
6969 ;; Pick the first article.
6970 ((not (or unread undownloaded unseen))
6971 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
6972 (gnus-data-number (car gnus-newsgroup-data)))
6973 ;; Find the first unread article.
6974 (t
6975 (let ((data gnus-newsgroup-data))
6976 (while (and data
6977 (let ((num (gnus-data-number (car data))))
6978 (or (memq num gnus-newsgroup-unfetched)
6979 (not (or (and unread
6980 (memq num gnus-newsgroup-unreads))
6981 (and undownloaded
6982 (memq num gnus-newsgroup-undownloaded))
6983 (and unseen
6984 (memq num gnus-newsgroup-unseen)))))))
6985 (setq data (cdr data)))
6986 (prog1
6987 (if data
6988 (progn
6989 (goto-char (gnus-data-pos (car data)))
6990 (gnus-data-number (car data)))
6991 (gnus-message 3 "No more%s articles"
6992 (let* ((r (when unread " unread"))
6993 (d (when undownloaded " undownloaded"))
6994 (s (when unseen " unseen"))
6995 (l (delq nil (list r d s))))
6996 (cond ((= 3 (length l))
6997 (concat r "," d ", or" s))
6998 ((= 2 (length l))
6999 (concat (car l) ", or" (cadr l)))
7000 ((= 1 (length l))
7001 (car l))
7002 (t
7003 ""))))
7004 nil
7005 )
7006 (gnus-summary-position-point))))))
eec82323
LMI
7007
7008(defun gnus-summary-next-subject (n &optional unread dont-display)
7009 "Go to next N'th summary line.
7010If N is negative, go to the previous N'th subject line.
7011If UNREAD is non-nil, only unread articles are selected.
7012The difference between N and the actual number of steps taken is
7013returned."
7014 (interactive "p")
7015 (let ((backward (< n 0))
7016 (n (abs n)))
7017 (while (and (> n 0)
7018 (if backward
7019 (gnus-summary-find-prev unread)
7020 (gnus-summary-find-next unread)))
16409b0b
GM
7021 (unless (zerop (setq n (1- n)))
7022 (gnus-summary-show-thread)))
eec82323
LMI
7023 (when (/= 0 n)
7024 (gnus-message 7 "No more%s articles"
7025 (if unread " unread" "")))
7026 (unless dont-display
7027 (gnus-summary-recenter)
7028 (gnus-summary-position-point))
7029 n))
7030
7031(defun gnus-summary-next-unread-subject (n)
7032 "Go to next N'th unread summary line."
7033 (interactive "p")
7034 (gnus-summary-next-subject n t))
7035
7036(defun gnus-summary-prev-subject (n &optional unread)
7037 "Go to previous N'th summary line.
7038If optional argument UNREAD is non-nil, only unread article is selected."
7039 (interactive "p")
7040 (gnus-summary-next-subject (- n) unread))
7041
7042(defun gnus-summary-prev-unread-subject (n)
7043 "Go to previous N'th unread summary line."
7044 (interactive "p")
7045 (gnus-summary-next-subject (- n) t))
7046
23f87bed
MB
7047(defun gnus-summary-goto-subjects (articles)
7048 "Insert the subject header for ARTICLES in the current buffer."
7049 (save-excursion
7050 (dolist (article articles)
7051 (gnus-summary-goto-subject article t)))
7052 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7053 (gnus-summary-position-point))
132cf96d 7054
eec82323
LMI
7055(defun gnus-summary-goto-subject (article &optional force silent)
7056 "Go the subject line of ARTICLE.
7057If FORCE, also allow jumping to articles not currently shown."
7058 (interactive "nArticle number: ")
23f87bed
MB
7059 (unless (numberp article)
7060 (error "Article %s is not a number" article))
eec82323
LMI
7061 (let ((b (point))
7062 (data (gnus-data-find article)))
7063 ;; We read in the article if we have to.
7064 (and (not data)
7065 force
6748645f
LMI
7066 (gnus-summary-insert-subject
7067 article
7068 (if (or (numberp force) (vectorp force)) force)
7069 t)
eec82323
LMI
7070 (setq data (gnus-data-find article)))
7071 (goto-char b)
7072 (if (not data)
7073 (progn
7074 (unless silent
7075 (gnus-message 3 "Can't find article %d" article))
7076 nil)
23f87bed
MB
7077 (let ((pt (gnus-data-pos data)))
7078 (goto-char pt)
7079 (gnus-summary-set-article-display-arrow pt))
6748645f 7080 (gnus-summary-position-point)
eec82323
LMI
7081 article)))
7082
7083;; Walking around summary lines with displaying articles.
7084
7085(defun gnus-summary-expand-window (&optional arg)
7086 "Make the summary buffer take up the entire Emacs frame.
7087Given a prefix, will force an `article' buffer configuration."
7088 (interactive "P")
eec82323
LMI
7089 (if arg
7090 (gnus-configure-windows 'article 'force)
7091 (gnus-configure-windows 'summary 'force)))
7092
7093(defun gnus-summary-display-article (article &optional all-header)
7094 "Display ARTICLE in article buffer."
d4dfaa19
DL
7095 (when (gnus-buffer-live-p gnus-article-buffer)
7096 (with-current-buffer gnus-article-buffer
87545352 7097 (mm-enable-multibyte)))
eec82323 7098 (gnus-set-global-variables)
23f87bed
MB
7099 (when (gnus-buffer-live-p gnus-article-buffer)
7100 (with-current-buffer gnus-article-buffer
7101 (setq gnus-article-charset gnus-newsgroup-charset)
7102 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7103 (mm-enable-multibyte)))
eec82323
LMI
7104 (if (null article)
7105 nil
7106 (prog1
7107 (if gnus-summary-display-article-function
7108 (funcall gnus-summary-display-article-function article all-header)
7109 (gnus-article-prepare article all-header))
6748645f 7110 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7111 (when (and gnus-current-article
7112 (not (zerop gnus-current-article)))
7113 (gnus-summary-goto-subject gnus-current-article))
7114 (gnus-summary-recenter)
7115 (when (and gnus-use-trees gnus-show-threads)
7116 (gnus-possibly-generate-tree article)
7117 (gnus-highlight-selected-tree article))
7118 ;; Successfully display article.
7119 (gnus-article-set-window-start
7120 (cdr (assq article gnus-newsgroup-bookmarks))))))
7121
7122(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7123 "Select the current article.
7124If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7125non-nil, the article will be re-fetched even if it already present in
7126the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7127be displayed."
7128 ;; Make sure we are in the summary buffer to work around bbdb bug.
7129 (unless (eq major-mode 'gnus-summary-mode)
7130 (set-buffer gnus-summary-buffer))
7131 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7132 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7133 gnus-summary-display-article-function)
eec82323
LMI
7134 (and (not pseudo)
7135 (gnus-summary-article-pseudo-p article)
a8151ef7 7136 (error "This is a pseudo-article"))
16409b0b
GM
7137 (save-excursion
7138 (set-buffer gnus-summary-buffer)
7139 (if (or (and gnus-single-article-buffer
7140 (or (null gnus-current-article)
7141 (null gnus-article-current)
7142 (null (get-buffer gnus-article-buffer))
7143 (not (eq article (cdr gnus-article-current)))
7144 (not (equal (car gnus-article-current)
7145 gnus-newsgroup-name))))
7146 (and (not gnus-single-article-buffer)
7147 (or (null gnus-current-article)
7148 (not (eq gnus-current-article article))))
7149 force)
7150 ;; The requested article is different from the current article.
7151 (progn
16409b0b
GM
7152 (gnus-summary-display-article article all-headers)
7153 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7154 (with-current-buffer gnus-article-buffer
16409b0b 7155 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7156 (mm-disable-multibyte))))
16409b0b
GM
7157 (gnus-article-set-window-start
7158 (cdr (assq article gnus-newsgroup-bookmarks)))
7159 article)
16409b0b 7160 'old))))
eec82323 7161
23f87bed
MB
7162(defun gnus-summary-force-verify-and-decrypt ()
7163 "Display buttons for signed/encrypted parts and verify/decrypt them."
7164 (interactive)
7165 (let ((mm-verify-option 'known)
7166 (mm-decrypt-option 'known)
7167 (gnus-article-emulate-mime t)
7168 (gnus-buttonized-mime-types (append (list "multipart/signed"
7169 "multipart/encrypted")
7170 gnus-buttonized-mime-types)))
7171 (gnus-summary-select-article nil 'force)))
7172
eec82323
LMI
7173(defun gnus-summary-set-current-mark (&optional current-mark)
7174 "Obsolete function."
7175 nil)
7176
7177(defun gnus-summary-next-article (&optional unread subject backward push)
7178 "Select the next article.
7179If UNREAD, only unread articles are selected.
7180If SUBJECT, only articles with SUBJECT are selected.
7181If BACKWARD, the previous article is selected instead of the next."
7182 (interactive "P")
eec82323
LMI
7183 (cond
7184 ;; Is there such an article?
7185 ((and (gnus-summary-search-forward unread subject backward)
7186 (or (gnus-summary-display-article (gnus-summary-article-number))
7187 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7188 (gnus-summary-position-point))
7189 ;; If not, we try the first unread, if that is wanted.
7190 ((and subject
7191 gnus-auto-select-same
7192 (gnus-summary-first-unread-article))
7193 (gnus-summary-position-point)
7194 (gnus-message 6 "Wrapped"))
7195 ;; Try to get next/previous article not displayed in this group.
7196 ((and gnus-auto-extend-newsgroup
7197 (not unread) (not subject))
7198 (gnus-summary-goto-article
7199 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7200 nil (count-lines (point-min) (point))))
eec82323
LMI
7201 ;; Go to next/previous group.
7202 (t
7203 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7204 (gnus-summary-jump-to-group gnus-newsgroup-name))
7205 (let ((cmd last-command-char)
7206 (point
7207 (save-excursion
7208 (set-buffer gnus-group-buffer)
7209 (point)))
7210 (group
7211 (if (eq gnus-keep-same-level 'best)
7212 (gnus-summary-best-group gnus-newsgroup-name)
7213 (gnus-summary-search-group backward gnus-keep-same-level))))
7214 ;; For some reason, the group window gets selected. We change
7215 ;; it back.
7216 (select-window (get-buffer-window (current-buffer)))
7217 ;; Select next unread newsgroup automagically.
7218 (cond
7219 ((or (not gnus-auto-select-next)
7220 (not cmd))
7221 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7222 ((or (eq gnus-auto-select-next 'quietly)
7223 (and (eq gnus-auto-select-next 'slightly-quietly)
7224 push)
7225 (and (eq gnus-auto-select-next 'almost-quietly)
7226 (gnus-summary-last-article-p)))
7227 ;; Select quietly.
7228 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7229 (gnus-summary-exit)
7230 (gnus-message 7 "No more%s articles (%s)..."
7231 (if unread " unread" "")
7232 (if group (concat "selecting " group)
7233 "exiting"))
7234 (gnus-summary-next-group nil group backward)))
7235 (t
7236 (when (gnus-key-press-event-p last-input-event)
7237 (gnus-summary-walk-group-buffer
7238 gnus-newsgroup-name cmd unread backward point))))))))
7239
7240(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7241 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7242 (?\C-p (gnus-group-prev-unread-group 1))))
7243 (cursor-in-echo-area t)
23f87bed 7244 keve key group ended prompt)
eec82323
LMI
7245 (save-excursion
7246 (set-buffer gnus-group-buffer)
7247 (goto-char start)
7248 (setq group
7249 (if (eq gnus-keep-same-level 'best)
7250 (gnus-summary-best-group gnus-newsgroup-name)
7251 (gnus-summary-search-group backward gnus-keep-same-level))))
7252 (while (not ended)
23f87bed
MB
7253 (setq prompt
7254 (format
7255 "No more%s articles%s " (if unread " unread" "")
7256 (if (and group
7257 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7258 (format " (Type %s for %s [%s])"
91472578
MB
7259 (single-key-description cmd)
7260 (gnus-group-decoded-name group)
23f87bed
MB
7261 (car (gnus-gethash group gnus-newsrc-hashtb)))
7262 (format " (Type %s to exit %s)"
7263 (single-key-description cmd)
91472578 7264 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7265 ;; Confirm auto selection.
23f87bed
MB
7266 (setq key (car (setq keve (gnus-read-event-char prompt)))
7267 ended t)
eec82323
LMI
7268 (cond
7269 ((assq key keystrokes)
7270 (let ((obuf (current-buffer)))
7271 (switch-to-buffer gnus-group-buffer)
7272 (when group
7273 (gnus-group-jump-to-group group))
7274 (eval (cadr (assq key keystrokes)))
7275 (setq group (gnus-group-group-name))
7276 (switch-to-buffer obuf))
7277 (setq ended nil))
7278 ((equal key cmd)
7279 (if (or (not group)
7280 (gnus-ephemeral-group-p gnus-newsgroup-name))
7281 (gnus-summary-exit)
7282 (gnus-summary-next-group nil group backward)))
7283 (t
7284 (push (cdr keve) unread-command-events))))))
7285
7286(defun gnus-summary-next-unread-article ()
7287 "Select unread article after current one."
7288 (interactive)
7289 (gnus-summary-next-article
7290 (or (not (eq gnus-summary-goto-unread 'never))
7291 (gnus-summary-last-article-p (gnus-summary-article-number)))
7292 (and gnus-auto-select-same
7293 (gnus-summary-article-subject))))
7294
7295(defun gnus-summary-prev-article (&optional unread subject)
7296 "Select the article after the current one.
7297If UNREAD is non-nil, only unread articles are selected."
7298 (interactive "P")
7299 (gnus-summary-next-article unread subject t))
7300
7301(defun gnus-summary-prev-unread-article ()
7302 "Select unread article before current one."
7303 (interactive)
7304 (gnus-summary-prev-article
7305 (or (not (eq gnus-summary-goto-unread 'never))
7306 (gnus-summary-first-article-p (gnus-summary-article-number)))
7307 (and gnus-auto-select-same
7308 (gnus-summary-article-subject))))
7309
23f87bed 7310(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7311 "Show next page of the selected article.
7312If at the end of the current article, select the next article.
7313LINES says how many lines should be scrolled up.
7314
7315If CIRCULAR is non-nil, go to the start of the article instead of
7316selecting the next article when reaching the end of the current
23f87bed
MB
7317article.
7318
7319If STOP is non-nil, just stop when reaching the end of the message.
7320
7321Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7322 (interactive "P")
7323 (setq gnus-summary-buffer (current-buffer))
7324 (gnus-set-global-variables)
7325 (let ((article (gnus-summary-article-number))
7326 (article-window (get-buffer-window gnus-article-buffer t))
7327 endp)
6748645f
LMI
7328 ;; If the buffer is empty, we have no article.
7329 (unless article
7330 (error "No article to select"))
eec82323
LMI
7331 (gnus-configure-windows 'article)
7332 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7333 (if (and (eq gnus-summary-goto-unread 'never)
7334 (not (gnus-summary-last-article-p article)))
7335 (gnus-summary-next-article)
7336 (gnus-summary-next-unread-article))
7337 (if (or (null gnus-current-article)
7338 (null gnus-article-current)
7339 (/= article (cdr gnus-article-current))
7340 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7341 ;; Selected subject is different from current article's.
7342 (gnus-summary-display-article article)
7343 (when article-window
7344 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7345 (setq endp (or (gnus-article-next-page lines)
7346 (gnus-article-only-boring-p))))
eec82323 7347 (when endp
23f87bed
MB
7348 (cond (stop
7349 (gnus-message 3 "End of message"))
7350 (circular
eec82323
LMI
7351 (gnus-summary-beginning-of-article))
7352 (lines
7353 (gnus-message 3 "End of message"))
7354 ((null lines)
7355 (if (and (eq gnus-summary-goto-unread 'never)
7356 (not (gnus-summary-last-article-p article)))
7357 (gnus-summary-next-article)
7358 (gnus-summary-next-unread-article))))))))
7359 (gnus-summary-recenter)
7360 (gnus-summary-position-point)))
7361
7362(defun gnus-summary-prev-page (&optional lines move)
7363 "Show previous page of selected article.
7364Argument LINES specifies lines to be scrolled down.
7365If MOVE, move to the previous unread article if point is at
7366the beginning of the buffer."
7367 (interactive "P")
eec82323
LMI
7368 (let ((article (gnus-summary-article-number))
7369 (article-window (get-buffer-window gnus-article-buffer t))
7370 endp)
7371 (gnus-configure-windows 'article)
7372 (if (or (null gnus-current-article)
7373 (null gnus-article-current)
7374 (/= article (cdr gnus-article-current))
7375 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7376 ;; Selected subject is different from current article's.
7377 (gnus-summary-display-article article)
7378 (gnus-summary-recenter)
7379 (when article-window
7380 (gnus-eval-in-buffer-window gnus-article-buffer
7381 (setq endp (gnus-article-prev-page lines)))
7382 (when (and move endp)
7383 (cond (lines
7384 (gnus-message 3 "Beginning of message"))
7385 ((null lines)
7386 (if (and (eq gnus-summary-goto-unread 'never)
7387 (not (gnus-summary-first-article-p article)))
7388 (gnus-summary-prev-article)
7389 (gnus-summary-prev-unread-article))))))))
7390 (gnus-summary-position-point))
7391
7392(defun gnus-summary-prev-page-or-article (&optional lines)
7393 "Show previous page of selected article.
7394Argument LINES specifies lines to be scrolled down.
7395If at the beginning of the article, go to the next article."
7396 (interactive "P")
7397 (gnus-summary-prev-page lines t))
7398
7399(defun gnus-summary-scroll-up (lines)
7400 "Scroll up (or down) one line current article.
7401Argument LINES specifies lines to be scrolled up (or down if negative)."
7402 (interactive "p")
eec82323
LMI
7403 (gnus-configure-windows 'article)
7404 (gnus-summary-show-thread)
7405 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7406 (gnus-eval-in-buffer-window gnus-article-buffer
7407 (cond ((> lines 0)
7408 (when (gnus-article-next-page lines)
7409 (gnus-message 3 "End of message")))
7410 ((< lines 0)
7411 (gnus-article-prev-page (- lines))))))
7412 (gnus-summary-recenter)
7413 (gnus-summary-position-point))
7414
6748645f
LMI
7415(defun gnus-summary-scroll-down (lines)
7416 "Scroll down (or up) one line current article.
7417Argument LINES specifies lines to be scrolled down (or up if negative)."
7418 (interactive "p")
7419 (gnus-summary-scroll-up (- lines)))
7420
eec82323
LMI
7421(defun gnus-summary-next-same-subject ()
7422 "Select next article which has the same subject as current one."
7423 (interactive)
eec82323
LMI
7424 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7425
7426(defun gnus-summary-prev-same-subject ()
7427 "Select previous article which has the same subject as current one."
7428 (interactive)
eec82323
LMI
7429 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7430
7431(defun gnus-summary-next-unread-same-subject ()
7432 "Select next unread article which has the same subject as current one."
7433 (interactive)
eec82323
LMI
7434 (gnus-summary-next-article t (gnus-summary-article-subject)))
7435
7436(defun gnus-summary-prev-unread-same-subject ()
7437 "Select previous unread article which has the same subject as current one."
7438 (interactive)
eec82323
LMI
7439 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7440
7441(defun gnus-summary-first-unread-article ()
7442 "Select the first unread article.
7443Return nil if there are no unread articles."
7444 (interactive)
eec82323
LMI
7445 (prog1
7446 (when (gnus-summary-first-subject t)
7447 (gnus-summary-show-thread)
7448 (gnus-summary-first-subject t)
7449 (gnus-summary-display-article (gnus-summary-article-number)))
7450 (gnus-summary-position-point)))
7451
16409b0b
GM
7452(defun gnus-summary-first-unread-subject ()
7453 "Place the point on the subject line of the first unread article.
7454Return nil if there are no unread articles."
7455 (interactive)
7456 (prog1
7457 (when (gnus-summary-first-subject t)
7458 (gnus-summary-show-thread)
7459 (gnus-summary-first-subject t))
7460 (gnus-summary-position-point)))
7461
23f87bed
MB
7462(defun gnus-summary-first-unseen-subject ()
7463 "Place the point on the subject line of the first unseen article.
7464Return nil if there are no unseen articles."
7465 (interactive)
7466 (prog1
7467 (when (gnus-summary-first-subject nil nil t)
7468 (gnus-summary-show-thread)
7469 (gnus-summary-first-subject nil nil t))
7470 (gnus-summary-position-point)))
7471
7472(defun gnus-summary-first-unseen-or-unread-subject ()
7473 "Place the point on the subject line of the first unseen article or,
7474if all article have been seen, on the subject line of the first unread
7475article."
7476 (interactive)
7477 (prog1
7478 (unless (when (gnus-summary-first-subject nil nil t)
7479 (gnus-summary-show-thread)
7480 (gnus-summary-first-subject nil nil t))
7481 (when (gnus-summary-first-subject t)
7482 (gnus-summary-show-thread)
7483 (gnus-summary-first-subject t)))
7484 (gnus-summary-position-point)))
7485
eec82323
LMI
7486(defun gnus-summary-first-article ()
7487 "Select the first article.
7488Return nil if there are no articles."
7489 (interactive)
eec82323
LMI
7490 (prog1
7491 (when (gnus-summary-first-subject)
16409b0b
GM
7492 (gnus-summary-show-thread)
7493 (gnus-summary-first-subject)
7494 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7495 (gnus-summary-position-point)))
7496
23f87bed
MB
7497(defun gnus-summary-best-unread-article (&optional arg)
7498 "Select the unread article with the highest score.
7499If given a prefix argument, select the next unread article that has a
7500score higher than the default score."
7501 (interactive "P")
7502 (let ((article (if arg
7503 (gnus-summary-better-unread-subject)
7504 (gnus-summary-best-unread-subject))))
7505 (if article
7506 (gnus-summary-goto-article article)
7507 (error "No unread articles"))))
7508
7509(defun gnus-summary-best-unread-subject ()
7510 "Select the unread subject with the highest score."
eec82323 7511 (interactive)
eec82323
LMI
7512 (let ((best -1000000)
7513 (data gnus-newsgroup-data)
7514 article score)
7515 (while data
7516 (and (gnus-data-unread-p (car data))
7517 (> (setq score
7518 (gnus-summary-article-score (gnus-data-number (car data))))
7519 best)
7520 (setq best score
7521 article (gnus-data-number (car data))))
7522 (setq data (cdr data)))
23f87bed
MB
7523 (when article
7524 (gnus-summary-goto-subject article))
7525 (gnus-summary-position-point)
7526 article))
7527
7528(defun gnus-summary-better-unread-subject ()
7529 "Select the first unread subject that has a score over the default score."
7530 (interactive)
7531 (let ((data gnus-newsgroup-data)
7532 article score)
7533 (while (and (setq article (gnus-data-number (car data)))
7534 (or (gnus-data-read-p (car data))
7535 (not (> (gnus-summary-article-score article)
7536 gnus-summary-default-score))))
7537 (setq data (cdr data)))
7538 (when article
7539 (gnus-summary-goto-subject article))
7540 (gnus-summary-position-point)
7541 article))
eec82323
LMI
7542
7543(defun gnus-summary-last-subject ()
7544 "Go to the last displayed subject line in the group."
7545 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7546 (when article
7547 (gnus-summary-goto-subject article))))
7548
7549(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7550 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7551If ALL-HEADERS is non-nil, no header lines are hidden.
7552If FORCE, go to the article even if it isn't displayed. If FORCE
7553is a number, it is the line the article is to be displayed on."
eec82323
LMI
7554 (interactive
7555 (list
6748645f
LMI
7556 (completing-read
7557 "Article number or Message-ID: "
7558 (mapcar (lambda (number) (list (int-to-string number)))
7559 gnus-newsgroup-limit))
eec82323
LMI
7560 current-prefix-arg
7561 t))
7562 (prog1
6748645f 7563 (if (and (stringp article)
23f87bed 7564 (string-match "@\\|%40" article))
6748645f
LMI
7565 (gnus-summary-refer-article article)
7566 (when (stringp article)
7567 (setq article (string-to-number article)))
7568 (if (gnus-summary-goto-subject article force)
7569 (gnus-summary-display-article article all-headers)
7570 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
7571 (gnus-summary-position-point)))
7572
7573(defun gnus-summary-goto-last-article ()
7574 "Go to the previously read article."
7575 (interactive)
7576 (prog1
7577 (when gnus-last-article
6748645f 7578 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
7579 (gnus-summary-position-point)))
7580
7581(defun gnus-summary-pop-article (number)
7582 "Pop one article off the history and go to the previous.
7583NUMBER articles will be popped off."
7584 (interactive "p")
7585 (let (to)
7586 (setq gnus-newsgroup-history
7587 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
7588 (if to
6748645f 7589 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
7590 (error "Article history empty")))
7591 (gnus-summary-position-point))
7592
7593;; Summary commands and functions for limiting the summary buffer.
7594
7595(defun gnus-summary-limit-to-articles (n)
7596 "Limit the summary buffer to the next N articles.
7597If not given a prefix, use the process marked articles instead."
7598 (interactive "P")
eec82323
LMI
7599 (prog1
7600 (let ((articles (gnus-summary-work-articles n)))
7601 (setq gnus-newsgroup-processable nil)
7602 (gnus-summary-limit articles))
7603 (gnus-summary-position-point)))
7604
7605(defun gnus-summary-pop-limit (&optional total)
7606 "Restore the previous limit.
7607If given a prefix, remove all limits."
7608 (interactive "P")
eec82323
LMI
7609 (when total
7610 (setq gnus-newsgroup-limits
7611 (list (mapcar (lambda (h) (mail-header-number h))
7612 gnus-newsgroup-headers))))
7613 (unless gnus-newsgroup-limits
7614 (error "No limit to pop"))
7615 (prog1
7616 (gnus-summary-limit nil 'pop)
7617 (gnus-summary-position-point)))
7618
47b63dfa
SZ
7619(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
7620 "Limit the summary buffer to articles that have subjects that match a regexp.
7621If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 7622 (interactive
47b63dfa
SZ
7623 (list (read-string (if current-prefix-arg
7624 "Exclude subject (regexp): "
a1506d29 7625 "Limit to subject (regexp): "))
47b63dfa 7626 nil current-prefix-arg))
eec82323
LMI
7627 (unless header
7628 (setq header "subject"))
7629 (when (not (equal "" subject))
7630 (prog1
7631 (let ((articles (gnus-summary-find-matching
a1506d29 7632 (or header "subject") subject 'all nil nil
47b63dfa 7633 not-matching)))
eec82323
LMI
7634 (unless articles
7635 (error "Found no matches for \"%s\"" subject))
7636 (gnus-summary-limit articles))
7637 (gnus-summary-position-point))))
7638
ef6e0ec7 7639(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
7640 "Limit the summary buffer to articles that have authors that match a regexp.
7641If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 7642 (interactive
47b63dfa
SZ
7643 (list (read-string (if current-prefix-arg
7644 "Exclude author (regexp): "
a1506d29 7645 "Limit to author (regexp): "))
ef6e0ec7
SZ
7646 current-prefix-arg))
7647 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323
LMI
7648
7649(defun gnus-summary-limit-to-age (age &optional younger-p)
7650 "Limit the summary buffer to articles that are older than (or equal) AGE days.
7651If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
7652articles that are younger than AGE days."
16409b0b
GM
7653 (interactive
7654 (let ((younger current-prefix-arg)
7655 (days-got nil)
7656 days)
7657 (while (not days-got)
7658 (setq days (if younger
23f87bed
MB
7659 (read-string "Limit to articles younger than (in days, older when negative): ")
7660 (read-string
7661 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
7662 (when (> (length days) 0)
7663 (setq days (read days)))
7664 (if (numberp days)
23f87bed
MB
7665 (progn
7666 (setq days-got t)
7667 (if (< days 0)
7668 (progn
7669 (setq younger (not younger))
7670 (setq days (* days -1)))))
16409b0b
GM
7671 (message "Please enter a number.")
7672 (sleep-for 1)))
7673 (list days younger)))
eec82323
LMI
7674 (prog1
7675 (let ((data gnus-newsgroup-data)
16409b0b 7676 (cutoff (days-to-time age))
eec82323
LMI
7677 articles d date is-younger)
7678 (while (setq d (pop data))
7679 (when (and (vectorp (gnus-data-header d))
7680 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM
7681 (setq is-younger (time-less-p
7682 (time-since (condition-case ()
7683 (date-to-time date)
7684 (error '(0 0))))
eec82323 7685 cutoff))
6748645f
LMI
7686 (when (if younger-p
7687 is-younger
7688 (not is-younger))
eec82323
LMI
7689 (push (gnus-data-number d) articles))))
7690 (gnus-summary-limit (nreverse articles)))
7691 (gnus-summary-position-point)))
7692
47b63dfa 7693(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
7694 "Limit the summary buffer to articles that match an 'extra' header."
7695 (interactive
7696 (let ((header
7697 (intern
23f87bed 7698 (gnus-completing-read-with-default
16409b0b 7699 (symbol-name (car gnus-extra-headers))
47b63dfa 7700 (if current-prefix-arg
81df110a
RF
7701 "Exclude extra header"
7702 "Limit extra header")
16409b0b
GM
7703 (mapcar (lambda (x)
7704 (cons (symbol-name x) x))
7705 gnus-extra-headers)
7706 nil
7707 t))))
7708 (list header
a1506d29 7709 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
7710 (if current-prefix-arg "Exclude" "Limit to")
7711 header))
7712 current-prefix-arg)))
16409b0b
GM
7713 (when (not (equal "" regexp))
7714 (prog1
7715 (let ((articles (gnus-summary-find-matching
a1506d29 7716 (cons 'extra header) regexp 'all nil nil
47b63dfa 7717 not-matching)))
16409b0b
GM
7718 (unless articles
7719 (error "Found no matches for \"%s\"" regexp))
7720 (gnus-summary-limit articles))
7721 (gnus-summary-position-point))))
7722
23f87bed
MB
7723(defun gnus-summary-limit-to-display-predicate ()
7724 "Limit the summary buffer to the predicated in the `display' group parameter."
7725 (interactive)
7726 (unless gnus-newsgroup-display
7727 (error "There is no `display' group parameter"))
7728 (let (articles)
7729 (dolist (number gnus-newsgroup-articles)
7730 (when (funcall gnus-newsgroup-display)
7731 (push number articles)))
7732 (gnus-summary-limit articles))
7733 (gnus-summary-position-point))
7734
eec82323
LMI
7735(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
7736(make-obsolete
7737 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
7738
7739(defun gnus-summary-limit-to-unread (&optional all)
7740 "Limit the summary buffer to articles that are not marked as read.
7741If ALL is non-nil, limit strictly to unread articles."
7742 (interactive "P")
7743 (if all
7744 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
7745 (gnus-summary-limit-to-marks
7746 ;; Concat all the marks that say that an article is read and have
7747 ;; those removed.
7748 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 7749 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
7750 gnus-low-score-mark gnus-expirable-mark
7751 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
7752 gnus-duplicate-mark gnus-souped-mark)
7753 'reverse)))
7754
7755(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
7756(make-obsolete 'gnus-summary-delete-marked-with
81ceefe2 7757 'gnus-summary-limit-exclude-marks)
eec82323
LMI
7758
7759(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
7760 "Exclude articles that are marked with MARKS (e.g. \"DK\").
7761If REVERSE, limit the summary buffer to articles that are marked
7762with MARKS. MARKS can either be a string of marks or a list of marks.
7763Returns how many articles were removed."
7764 (interactive "sMarks: ")
7765 (gnus-summary-limit-to-marks marks t))
7766
7767(defun gnus-summary-limit-to-marks (marks &optional reverse)
7768 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
7769If REVERSE (the prefix), limit the summary buffer to articles that are
7770not marked with MARKS. MARKS can either be a string of marks or a
7771list of marks.
7772Returns how many articles were removed."
6748645f 7773 (interactive "sMarks: \nP")
eec82323
LMI
7774 (prog1
7775 (let ((data gnus-newsgroup-data)
7776 (marks (if (listp marks) marks
7777 (append marks nil))) ; Transform to list.
7778 articles)
7779 (while data
7780 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
7781 (memq (gnus-data-mark (car data)) marks))
7782 (push (gnus-data-number (car data)) articles))
7783 (setq data (cdr data)))
7784 (gnus-summary-limit articles))
7785 (gnus-summary-position-point)))
7786
23f87bed 7787(defun gnus-summary-limit-to-score (score)
eec82323 7788 "Limit to articles with score at or above SCORE."
23f87bed 7789 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
7790 (let ((data gnus-newsgroup-data)
7791 articles)
7792 (while data
7793 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
7794 score)
7795 (push (gnus-data-number (car data)) articles))
7796 (setq data (cdr data)))
7797 (prog1
7798 (gnus-summary-limit articles)
7799 (gnus-summary-position-point))))
7800
23f87bed
MB
7801(defun gnus-summary-limit-to-unseen ()
7802 "Limit to unseen articles."
7803 (interactive)
7804 (prog1
7805 (gnus-summary-limit gnus-newsgroup-unseen)
7806 (gnus-summary-position-point)))
7807
6748645f 7808(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
7809 "Display all the hidden articles that is in the thread with ID in it.
7810When called interactively, ID is the Message-ID of the current
7811article."
6748645f
LMI
7812 (interactive (list (mail-header-id (gnus-summary-article-header))))
7813 (let ((articles (gnus-articles-in-thread
7814 (gnus-id-to-thread (gnus-root-id id)))))
7815 (prog1
7816 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
7817 (gnus-summary-limit-include-matching-articles
7818 "subject"
7819 (regexp-quote (gnus-simplify-subject-re
7820 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
7821 (gnus-summary-position-point))))
7822
23f87bed
MB
7823(defun gnus-summary-limit-include-matching-articles (header regexp)
7824 "Display all the hidden articles that have HEADERs that match REGEXP."
7825 (interactive (list (read-string "Match on header: ")
7826 (read-string "Regexp: ")))
7827 (let ((articles (gnus-find-matching-articles header regexp)))
7828 (prog1
7829 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
7830 (gnus-summary-position-point))))
7831
7832(defun gnus-summary-insert-dormant-articles ()
7833 "Insert all the dormant articles for this group into the current buffer."
7834 (interactive)
7835 (let ((gnus-verbose (max 6 gnus-verbose)))
7836 (if (not gnus-newsgroup-dormant)
7837 (gnus-message 3 "No cached articles for this group")
7838 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
7839
eec82323 7840(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
7841 "Display all the hidden articles that are marked as dormant.
7842Note that this command only works on a subset of the articles currently
7843fetched for this group."
eec82323 7844 (interactive)
eec82323
LMI
7845 (unless gnus-newsgroup-dormant
7846 (error "There are no dormant articles in this group"))
7847 (prog1
7848 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
7849 (gnus-summary-position-point)))
7850
7851(defun gnus-summary-limit-exclude-dormant ()
7852 "Hide all dormant articles."
7853 (interactive)
eec82323
LMI
7854 (prog1
7855 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
7856 (gnus-summary-position-point)))
7857
7858(defun gnus-summary-limit-exclude-childless-dormant ()
7859 "Hide all dormant articles that have no children."
7860 (interactive)
eec82323
LMI
7861 (let ((data (gnus-data-list t))
7862 articles d children)
7863 ;; Find all articles that are either not dormant or have
7864 ;; children.
7865 (while (setq d (pop data))
7866 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
7867 (and (setq children
7868 (gnus-article-children (gnus-data-number d)))
7869 (let (found)
7870 (while children
7871 (when (memq (car children) articles)
7872 (setq children nil
7873 found t))
7874 (pop children))
7875 found)))
7876 (push (gnus-data-number d) articles)))
7877 ;; Do the limiting.
7878 (prog1
7879 (gnus-summary-limit articles)
7880 (gnus-summary-position-point))))
7881
7882(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
7883 "Mark all unread excluded articles as read.
7884If ALL, mark even excluded ticked and dormants as read."
7885 (interactive "P")
23f87bed
MB
7886 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
7887 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
7888 (sort
7889 (mapcar (lambda (h) (mail-header-number h))
7890 gnus-newsgroup-headers)
7891 '<)
23f87bed 7892 gnus-newsgroup-limit))
eec82323 7893 article)
6748645f 7894 (setq gnus-newsgroup-unreads
23f87bed
MB
7895 (gnus-sorted-intersection gnus-newsgroup-unreads
7896 gnus-newsgroup-limit))
eec82323
LMI
7897 (if all
7898 (setq gnus-newsgroup-dormant nil
7899 gnus-newsgroup-marked nil
7900 gnus-newsgroup-reads
7901 (nconc
7902 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
7903 gnus-newsgroup-reads))
7904 (while (setq article (pop articles))
7905 (unless (or (memq article gnus-newsgroup-dormant)
7906 (memq article gnus-newsgroup-marked))
7907 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
7908
7909(defun gnus-summary-limit (articles &optional pop)
7910 (if pop
7911 ;; We pop the previous limit off the stack and use that.
7912 (setq articles (car gnus-newsgroup-limits)
7913 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
7914 ;; We use the new limit, so we push the old limit on the stack.
7915 (push gnus-newsgroup-limit gnus-newsgroup-limits))
7916 ;; Set the limit.
7917 (setq gnus-newsgroup-limit articles)
7918 (let ((total (length gnus-newsgroup-data))
7919 (data (gnus-data-find-list (gnus-summary-article-number)))
7920 (gnus-summary-mark-below nil) ; Inhibit this.
7921 found)
7922 ;; This will do all the work of generating the new summary buffer
7923 ;; according to the new limit.
7924 (gnus-summary-prepare)
7925 ;; Hide any threads, possibly.
23f87bed 7926 (gnus-summary-maybe-hide-threads)
eec82323
LMI
7927 ;; Try to return to the article you were at, or one in the
7928 ;; neighborhood.
7929 (when data
7930 ;; We try to find some article after the current one.
7931 (while data
7932 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
7933 (setq data nil
7934 found t))
7935 (setq data (cdr data))))
7936 (unless found
7937 ;; If there is no data, that means that we were after the last
7938 ;; article. The same goes when we can't find any articles
7939 ;; after the current one.
7940 (goto-char (point-max))
7941 (gnus-summary-find-prev))
6748645f 7942 (gnus-set-mode-line 'summary)
eec82323
LMI
7943 ;; We return how many articles were removed from the summary
7944 ;; buffer as a result of the new limit.
7945 (- total (length gnus-newsgroup-data))))
7946
7947(defsubst gnus-invisible-cut-children (threads)
7948 (let ((num 0))
7949 (while threads
7950 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
7951 (incf num))
7952 (pop threads))
7953 (< num 2)))
7954
7955(defsubst gnus-cut-thread (thread)
7956 "Go forwards in the thread until we find an article that we want to display."
7957 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 7958 (eq gnus-fetch-old-headers 'invisible)
16409b0b 7959 (numberp gnus-fetch-old-headers)
eec82323
LMI
7960 (eq gnus-build-sparse-threads 'some)
7961 (eq gnus-build-sparse-threads 'more))
7962 ;; Deal with old-fetched headers and sparse threads.
7963 (while (and
7964 thread
7965 (or
7966 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
7967 (gnus-summary-article-ancient-p
7968 (mail-header-number (car thread))))
6748645f
LMI
7969 (if (or (<= (length (cdr thread)) 1)
7970 (eq gnus-fetch-old-headers 'invisible))
7971 (setq gnus-newsgroup-limit
7972 (delq (mail-header-number (car thread))
7973 gnus-newsgroup-limit)
7974 thread (cadr thread))
7975 (when (gnus-invisible-cut-children (cdr thread))
7976 (let ((th (cdr thread)))
7977 (while th
7978 (if (memq (mail-header-number (caar th))
a8151ef7 7979 gnus-newsgroup-limit)
6748645f
LMI
7980 (setq thread (car th)
7981 th nil)
7982 (setq th (cdr th))))))))))
eec82323
LMI
7983 thread)
7984
7985(defun gnus-cut-threads (threads)
23f87bed 7986 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 7987 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 7988 (eq gnus-fetch-old-headers 'invisible)
16409b0b 7989 (numberp gnus-fetch-old-headers)
eec82323
LMI
7990 (eq gnus-build-sparse-threads 'some)
7991 (eq gnus-build-sparse-threads 'more))
7992 (let ((th threads))
7993 (while th
7994 (setcar th (gnus-cut-thread (car th)))
7995 (setq th (cdr th)))))
7996 ;; Remove nixed out threads.
7997 (delq nil threads))
7998
7999(defun gnus-summary-initial-limit (&optional show-if-empty)
8000 "Figure out what the initial limit is supposed to be on group entry.
8001This entails weeding out unwanted dormants, low-scored articles,
8002fetch-old-headers verbiage, and so on."
8003 ;; Most groups have nothing to remove.
8004 (if (or gnus-inhibit-limiting
8005 (and (null gnus-newsgroup-dormant)
23f87bed 8006 (eq gnus-newsgroup-display 'gnus-not-ignore)
eec82323 8007 (not (eq gnus-fetch-old-headers 'some))
16409b0b 8008 (not (numberp gnus-fetch-old-headers))
6748645f 8009 (not (eq gnus-fetch-old-headers 'invisible))
eec82323
LMI
8010 (null gnus-summary-expunge-below)
8011 (not (eq gnus-build-sparse-threads 'some))
8012 (not (eq gnus-build-sparse-threads 'more))
8013 (null gnus-thread-expunge-below)
8014 (not gnus-use-nocem)))
8015 () ; Do nothing.
8016 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8017 (setq gnus-newsgroup-limit nil)
8018 (mapatoms
8019 (lambda (node)
8020 (unless (car (symbol-value node))
8021 ;; These threads have no parents -- they are roots.
8022 (let ((nodes (cdr (symbol-value node)))
8023 thread)
8024 (while nodes
8025 (if (and gnus-thread-expunge-below
8026 (< (gnus-thread-total-score (car nodes))
8027 gnus-thread-expunge-below))
8028 (gnus-expunge-thread (pop nodes))
8029 (setq thread (pop nodes))
8030 (gnus-summary-limit-children thread))))))
8031 gnus-newsgroup-dependencies)
8032 ;; If this limitation resulted in an empty group, we might
8033 ;; pop the previous limit and use it instead.
8034 (when (and (not gnus-newsgroup-limit)
8035 show-if-empty)
8036 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8037 gnus-newsgroup-limit))
8038
8039(defun gnus-summary-limit-children (thread)
8040 "Return 1 if this subthread is visible and 0 if it is not."
8041 ;; First we get the number of visible children to this thread. This
8042 ;; is done by recursing down the thread using this function, so this
8043 ;; will really go down to a leaf article first, before slowly
8044 ;; working its way up towards the root.
8045 (when thread
23f87bed
MB
8046 (let* ((max-lisp-eval-depth 5000)
8047 (children
eec82323
LMI
8048 (if (cdr thread)
8049 (apply '+ (mapcar 'gnus-summary-limit-children
8050 (cdr thread)))
8051 0))
8052 (number (mail-header-number (car thread)))
8053 score)
8054 (if (and
8055 (not (memq number gnus-newsgroup-marked))
8056 (or
8057 ;; If this article is dormant and has absolutely no visible
8058 ;; children, then this article isn't visible.
8059 (and (memq number gnus-newsgroup-dormant)
8060 (zerop children))
8061 ;; If this is "fetch-old-headered" and there is no
8062 ;; visible children, then we don't want this article.
16409b0b
GM
8063 (and (or (eq gnus-fetch-old-headers 'some)
8064 (numberp gnus-fetch-old-headers))
eec82323
LMI
8065 (gnus-summary-article-ancient-p number)
8066 (zerop children))
6748645f
LMI
8067 ;; If this is "fetch-old-headered" and `invisible', then
8068 ;; we don't want this article.
8069 (and (eq gnus-fetch-old-headers 'invisible)
8070 (gnus-summary-article-ancient-p number))
eec82323
LMI
8071 ;; If this is a sparsely inserted article with no children,
8072 ;; we don't want it.
8073 (and (eq gnus-build-sparse-threads 'some)
8074 (gnus-summary-article-sparse-p number)
8075 (zerop children))
8076 ;; If we use expunging, and this article is really
8077 ;; low-scored, then we don't want this article.
8078 (when (and gnus-summary-expunge-below
8079 (< (setq score
8080 (or (cdr (assq number gnus-newsgroup-scored))
8081 gnus-summary-default-score))
8082 gnus-summary-expunge-below))
8083 ;; We increase the expunge-tally here, but that has
8084 ;; nothing to do with the limits, really.
8085 (incf gnus-newsgroup-expunged-tally)
8086 ;; We also mark as read here, if that's wanted.
8087 (when (and gnus-summary-mark-below
8088 (< score gnus-summary-mark-below))
8089 (setq gnus-newsgroup-unreads
8090 (delq number gnus-newsgroup-unreads))
8091 (if gnus-newsgroup-auto-expire
8092 (push number gnus-newsgroup-expirable)
8093 (push (cons number gnus-low-score-mark)
8094 gnus-newsgroup-reads)))
8095 t)
23f87bed
MB
8096 ;; Do the `display' group parameter.
8097 (and gnus-newsgroup-display
8098 (not (funcall gnus-newsgroup-display)))
eec82323
LMI
8099 ;; Check NoCeM things.
8100 (if (and gnus-use-nocem
8101 (gnus-nocem-unwanted-article-p
8102 (mail-header-id (car thread))))
8103 (progn
a8151ef7 8104 (setq gnus-newsgroup-unreads
eec82323
LMI
8105 (delq number gnus-newsgroup-unreads))
8106 t))))
8107 ;; Nope, invisible article.
8108 0
8109 ;; Ok, this article is to be visible, so we add it to the limit
8110 ;; and return 1.
8111 (push number gnus-newsgroup-limit)
8112 1))))
8113
8114(defun gnus-expunge-thread (thread)
8115 "Mark all articles in THREAD as read."
8116 (let* ((number (mail-header-number (car thread))))
8117 (incf gnus-newsgroup-expunged-tally)
8118 ;; We also mark as read here, if that's wanted.
8119 (setq gnus-newsgroup-unreads
8120 (delq number gnus-newsgroup-unreads))
8121 (if gnus-newsgroup-auto-expire
8122 (push number gnus-newsgroup-expirable)
8123 (push (cons number gnus-low-score-mark)
8124 gnus-newsgroup-reads)))
8125 ;; Go recursively through all subthreads.
8126 (mapcar 'gnus-expunge-thread (cdr thread)))
8127
8128;; Summary article oriented commands
8129
8130(defun gnus-summary-refer-parent-article (n)
8131 "Refer parent article N times.
8132If N is negative, go to ancestor -N instead.
8133The difference between N and the number of articles fetched is returned."
8134 (interactive "p")
eec82323
LMI
8135 (let ((skip 1)
8136 error header ref)
8137 (when (not (natnump n))
8138 (setq skip (abs n)
8139 n 1))
8140 (while (and (> n 0)
8141 (not error))
8142 (setq header (gnus-summary-article-header))
8143 (if (and (eq (mail-header-number header)
8144 (cdr gnus-article-current))
8145 (equal gnus-newsgroup-name
8146 (car gnus-article-current)))
8147 ;; If we try to find the parent of the currently
8148 ;; displayed article, then we take a look at the actual
8149 ;; References header, since this is slightly more
8150 ;; reliable than the References field we got from the
8151 ;; server.
8152 (save-excursion
8153 (set-buffer gnus-original-article-buffer)
8154 (nnheader-narrow-to-headers)
8155 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8156 (when (setq ref (message-fetch-field "in-reply-to"))
8157 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8158 (widen))
8159 (setq ref
8160 ;; It's not the current article, so we take a bet on
8161 ;; the value we got from the server.
8162 (mail-header-references header)))
8163 (if (and ref
8164 (not (equal ref "")))
8165 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8166 (gnus-message 1 "Couldn't find parent"))
8167 (gnus-message 1 "No references in article %d"
8168 (gnus-summary-article-number))
8169 (setq error t))
8170 (decf n))
8171 (gnus-summary-position-point)
8172 n))
8173
8174(defun gnus-summary-refer-references ()
8175 "Fetch all articles mentioned in the References header.
6748645f 8176Return the number of articles fetched."
eec82323 8177 (interactive)
eec82323
LMI
8178 (let ((ref (mail-header-references (gnus-summary-article-header)))
8179 (current (gnus-summary-article-number))
8180 (n 0))
8181 (if (or (not ref)
8182 (equal ref ""))
8183 (error "No References in the current article")
8184 ;; For each Message-ID in the References header...
8185 (while (string-match "<[^>]*>" ref)
8186 (incf n)
8187 ;; ... fetch that article.
8188 (gnus-summary-refer-article
8189 (prog1 (match-string 0 ref)
8190 (setq ref (substring ref (match-end 0))))))
8191 (gnus-summary-goto-subject current)
8192 (gnus-summary-position-point)
8193 n)))
8194
6748645f
LMI
8195(defun gnus-summary-refer-thread (&optional limit)
8196 "Fetch all articles in the current thread.
8197If LIMIT (the numerical prefix), fetch that many old headers instead
8198of what's specified by the `gnus-refer-thread-limit' variable."
8199 (interactive "P")
8200 (let ((id (mail-header-id (gnus-summary-article-header)))
8201 (limit (if limit (prefix-numeric-value limit)
8202 gnus-refer-thread-limit)))
6748645f
LMI
8203 (unless (eq gnus-fetch-old-headers 'invisible)
8204 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8205 ;; Retrieve the headers and read them in.
23f87bed
MB
8206 (if (eq (if (numberp limit)
8207 (gnus-retrieve-headers
8208 (list (min
8209 (+ (mail-header-number
8210 (gnus-summary-article-header))
8211 limit)
8212 gnus-newsgroup-end))
8213 gnus-newsgroup-name (* limit 2))
8214 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8215 ;; headers.
8216 (gnus-retrieve-headers (list gnus-newsgroup-end)
8217 gnus-newsgroup-name limit))
6748645f
LMI
8218 'nov)
8219 (gnus-build-all-threads)
23f87bed 8220 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8221 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8222 (gnus-summary-limit-include-thread id)))
8223
16409b0b
GM
8224(defun gnus-summary-refer-article (message-id)
8225 "Fetch an article specified by MESSAGE-ID."
8226 (interactive "sMessage-ID: ")
eec82323
LMI
8227 (when (and (stringp message-id)
8228 (not (zerop (length message-id))))
23f87bed 8229 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8230 ;; Construct the correct Message-ID if necessary.
8231 ;; Suggested by tale@pawl.rpi.edu.
8232 (unless (string-match "^<" message-id)
8233 (setq message-id (concat "<" message-id)))
8234 (unless (string-match ">$" message-id)
8235 (setq message-id (concat message-id ">")))
23f87bed
MB
8236 ;; People often post MIDs from URLs, so unhex it:
8237 (unless (string-match "@" message-id)
8238 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8239 (let* ((header (gnus-id-to-header message-id))
8240 (sparse (and header
8241 (gnus-summary-article-sparse-p
a8151ef7
LMI
8242 (mail-header-number header))
8243 (memq (mail-header-number header)
16409b0b
GM
8244 gnus-newsgroup-limit)))
8245 number)
6748645f
LMI
8246 (cond
8247 ;; If the article is present in the buffer we just go to it.
8248 ((and header
8249 (or (not (gnus-summary-article-sparse-p
8250 (mail-header-number header)))
8251 sparse))
8252 (prog1
8253 (gnus-summary-goto-article
8254 (mail-header-number header) nil t)
8255 (when sparse
8256 (gnus-summary-update-article (mail-header-number header)))))
8257 (t
16409b0b
GM
8258 ;; We fetch the article.
8259 (catch 'found
8260 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8261 (when (and (gnus-check-server gnus-override-method)
8262 ;; Fetch the header,
8263 (setq number (gnus-summary-insert-subject message-id)))
8264 ;; and display the article.
eec82323 8265 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8266 (throw 'found t)))
8267 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8268
8269(defun gnus-refer-article-methods ()
8f688cb0 8270 "Return a list of referable methods."
16409b0b
GM
8271 (cond
8272 ;; No method, so we default to current and native.
8273 ((null gnus-refer-article-method)
8274 (list gnus-current-select-method gnus-select-method))
8275 ;; Current.
8276 ((eq 'current gnus-refer-article-method)
8277 (list gnus-current-select-method))
8278 ;; List of select methods.
d4dfaa19
DL
8279 ((not (and (symbolp (car gnus-refer-article-method))
8280 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8281 (let (out)
8282 (dolist (method gnus-refer-article-method)
8283 (push (if (eq 'current method)
8284 gnus-current-select-method
8285 method)
8286 out))
8287 (nreverse out)))
8288 ;; One single select method.
8289 (t
8290 (list gnus-refer-article-method))))
6748645f
LMI
8291
8292(defun gnus-summary-edit-parameters ()
8293 "Edit the group parameters of the current group."
8294 (interactive)
8295 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8296
16409b0b
GM
8297(defun gnus-summary-customize-parameters ()
8298 "Customize the group parameters of the current group."
8299 (interactive)
8300 (gnus-group-customize gnus-newsgroup-name))
8301
eec82323
LMI
8302(defun gnus-summary-enter-digest-group (&optional force)
8303 "Enter an nndoc group based on the current article.
8304If FORCE, force a digest interpretation. If not, try
8305to guess what the document format is."
8306 (interactive "P")
eec82323 8307 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8308 (save-window-excursion
8309 (save-excursion
8310 (let (gnus-article-prepare-hook
8311 gnus-display-mime-function
8312 gnus-break-pages)
8313 (gnus-summary-select-article))))
eec82323
LMI
8314 (setq gnus-current-window-configuration conf)
8315 (let* ((name (format "%s-%d"
8316 (gnus-group-prefixed-name
8317 gnus-newsgroup-name (list 'nndoc ""))
8318 (save-excursion
8319 (set-buffer gnus-summary-buffer)
8320 gnus-current-article)))
8321 (ogroup gnus-newsgroup-name)
8322 (params (append (gnus-info-params (gnus-get-info ogroup))
8323 (list (cons 'to-group ogroup))
23f87bed 8324 (list (cons 'parent-group ogroup))
eec82323
LMI
8325 (list (cons 'save-article-group ogroup))))
8326 (case-fold-search t)
8327 (buf (current-buffer))
16409b0b 8328 dig to-address)
eec82323 8329 (save-excursion
16409b0b
GM
8330 (set-buffer gnus-original-article-buffer)
8331 ;; Have the digest group inherit the main mail address of
8332 ;; the parent article.
23f87bed
MB
8333 (when (setq to-address (or (gnus-fetch-field "reply-to")
8334 (gnus-fetch-field "from")))
a1506d29
JB
8335 (setq params (append
8336 (list (cons 'to-address
d4dfaa19
DL
8337 (funcall gnus-decode-encoded-word-function
8338 to-address))))))
eec82323
LMI
8339 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8340 (insert-buffer-substring gnus-original-article-buffer)
8341 ;; Remove lines that may lead nndoc to misinterpret the
8342 ;; document type.
8343 (narrow-to-region
8344 (goto-char (point-min))
8345 (or (search-forward "\n\n" nil t) (point)))
8346 (goto-char (point-min))
16409b0b 8347 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8348 (widen))
8349 (unwind-protect
23f87bed 8350 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8351 (gnus-newsgroup-ephemeral-ignored-charsets
8352 gnus-newsgroup-ignored-charsets))
8353 (gnus-group-read-ephemeral-group
8354 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8355 (nndoc-article-type
23f87bed
MB
8356 ,(if force 'mbox 'guess)))
8357 t nil nil nil
8358 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8359 "ADAPT")))))
16409b0b 8360 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8361 (nconc (gnus-info-params (gnus-get-info name))
8362 params)
8363 ;; Couldn't select this doc group.
8364 (switch-to-buffer buf)
8365 (gnus-set-global-variables)
8366 (gnus-configure-windows 'summary)
8367 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8368 (kill-buffer dig)))))
8369
8370(defun gnus-summary-read-document (n)
8371 "Open a new group based on the current article(s).
8372This will allow you to read digests and other similar
8373documents as newsgroups.
8374Obeys the standard process/prefix convention."
8375 (interactive "P")
8376 (let* ((articles (gnus-summary-work-articles n))
8377 (ogroup gnus-newsgroup-name)
8378 (params (append (gnus-info-params (gnus-get-info ogroup))
8379 (list (cons 'to-group ogroup))))
8380 article group egroup groups vgroup)
8381 (while (setq article (pop articles))
8382 (setq group (format "%s-%d" gnus-newsgroup-name article))
8383 (gnus-summary-remove-process-mark article)
8384 (when (gnus-summary-display-article article)
8385 (save-excursion
16409b0b 8386 (with-temp-buffer
eec82323
LMI
8387 (insert-buffer-substring gnus-original-article-buffer)
8388 ;; Remove some headers that may lead nndoc to make
8389 ;; the wrong guess.
8390 (message-narrow-to-head)
8391 (goto-char (point-min))
8392 (delete-matching-lines "^\\(Path\\):\\|^From ")
8393 (widen)
8394 (if (setq egroup
8395 (gnus-group-read-ephemeral-group
8396 group `(nndoc ,group (nndoc-address ,(current-buffer))
8397 (nndoc-article-type guess))
8398 t nil t))
8399 (progn
23f87bed 8400 ;; Make all postings to this group go to the parent group.
eec82323
LMI
8401 (nconc (gnus-info-params (gnus-get-info egroup))
8402 params)
8403 (push egroup groups))
8404 ;; Couldn't select this doc group.
8405 (gnus-error 3 "Article couldn't be entered"))))))
8406 ;; Now we have selected all the documents.
8407 (cond
8408 ((not groups)
8409 (error "None of the articles could be interpreted as documents"))
8410 ((gnus-group-read-ephemeral-group
8411 (setq vgroup (format
8412 "nnvirtual:%s-%s" gnus-newsgroup-name
8413 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
8414 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
8415 t
8416 (cons (current-buffer) 'summary)))
8417 (t
8418 (error "Couldn't select virtual nndoc group")))))
8419
8420(defun gnus-summary-isearch-article (&optional regexp-p)
8421 "Do incremental search forward on the current article.
8422If REGEXP-P (the prefix) is non-nil, do regexp isearch."
8423 (interactive "P")
eec82323
LMI
8424 (gnus-summary-select-article)
8425 (gnus-configure-windows 'article)
8426 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
8427 (save-restriction
8428 (widen)
8429 (isearch-forward regexp-p))))
eec82323
LMI
8430
8431(defun gnus-summary-search-article-forward (regexp &optional backward)
8432 "Search for an article containing REGEXP forward.
8433If BACKWARD, search backward instead."
8434 (interactive
8435 (list (read-string
8436 (format "Search article %s (regexp%s): "
8437 (if current-prefix-arg "backward" "forward")
8438 (if gnus-last-search-regexp
8439 (concat ", default " gnus-last-search-regexp)
8440 "")))
8441 current-prefix-arg))
eec82323
LMI
8442 (if (string-equal regexp "")
8443 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
8444 (setq gnus-last-search-regexp regexp)
8445 (setq gnus-article-before-search gnus-current-article))
8446 ;; Intentionally set gnus-last-article.
8447 (setq gnus-last-article gnus-article-before-search)
8448 (let ((gnus-last-article gnus-last-article))
8449 (if (gnus-summary-search-article regexp backward)
8450 (gnus-summary-show-thread)
abc40aab 8451 (signal 'search-failed (list regexp)))))
eec82323
LMI
8452
8453(defun gnus-summary-search-article-backward (regexp)
8454 "Search for an article containing REGEXP backward."
8455 (interactive
8456 (list (read-string
8457 (format "Search article backward (regexp%s): "
8458 (if gnus-last-search-regexp
8459 (concat ", default " gnus-last-search-regexp)
8460 "")))))
8461 (gnus-summary-search-article-forward regexp 'backward))
8462
8463(defun gnus-summary-search-article (regexp &optional backward)
8464 "Search for an article containing REGEXP.
8465Optional argument BACKWARD means do search for backward.
8466`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
8467 ;; We have to require this here to make sure that the following
8468 ;; dynamic binding isn't shadowed by autoloading.
8469 (require 'gnus-async)
16409b0b 8470 (require 'gnus-art)
eec82323 8471 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 8472 (gnus-article-prepare-hook nil)
eec82323
LMI
8473 (gnus-mark-article-hook nil) ;Inhibit marking as read.
8474 (gnus-use-article-prefetch nil)
8475 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 8476 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
8477 (gnus-visual nil)
8478 (gnus-keep-backlog nil)
8479 (gnus-break-pages nil)
8480 (gnus-summary-display-arrow nil)
8481 (gnus-updated-mode-lines nil)
8482 (gnus-auto-center-summary nil)
eec82323 8483 (sum (current-buffer))
16409b0b 8484 (gnus-display-mime-function nil)
eec82323
LMI
8485 (found nil)
8486 point)
8487 (gnus-save-hidden-threads
8488 (gnus-summary-select-article)
8489 (set-buffer gnus-article-buffer)
16409b0b 8490 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
8491 (when backward
8492 (forward-line -1))
8493 (while (not found)
8494 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
8495 (if (if backward
8496 (re-search-backward regexp nil t)
8497 (re-search-forward regexp nil t))
8498 ;; We found the regexp.
8499 (progn
8500 (setq found 'found)
8501 (beginning-of-line)
8502 (set-window-start
8503 (get-buffer-window (current-buffer))
8504 (point))
8505 (forward-line 1)
16409b0b
GM
8506 (set-window-point
8507 (get-buffer-window (current-buffer))
8508 (point))
eec82323
LMI
8509 (set-buffer sum)
8510 (setq point (point)))
8511 ;; We didn't find it, so we go to the next article.
8512 (set-buffer sum)
8513 (setq found 'not)
8514 (while (eq found 'not)
8515 (if (not (if backward (gnus-summary-find-prev)
8516 (gnus-summary-find-next)))
8517 ;; No more articles.
8518 (setq found t)
8519 ;; Select the next article and adjust point.
8520 (unless (gnus-summary-article-sparse-p
8521 (gnus-summary-article-number))
8522 (setq found nil)
8523 (gnus-summary-select-article)
8524 (set-buffer gnus-article-buffer)
8525 (widen)
8526 (goto-char (if backward (point-max) (point-min))))))))
8527 (gnus-message 7 ""))
8528 ;; Return whether we found the regexp.
8529 (when (eq found 'found)
8530 (goto-char point)
8531 (gnus-summary-show-thread)
8532 (gnus-summary-goto-subject gnus-current-article)
8533 (gnus-summary-position-point)
8534 t)))
8535
23f87bed
MB
8536(defun gnus-find-matching-articles (header regexp)
8537 "Return a list of all articles that match REGEXP on HEADER.
8538This search includes all articles in the current group that Gnus has
8539fetched headers for, whether they are displayed or not."
8540 (let ((articles nil)
8541 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
8542 (case-fold-search t))
8543 (dolist (header gnus-newsgroup-headers)
8544 (when (string-match regexp (funcall func header))
8545 (push (mail-header-number header) articles)))
8546 (nreverse articles)))
8547
eec82323 8548(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 8549 not-case-fold not-matching)
eec82323
LMI
8550 "Return a list of all articles that match REGEXP on HEADER.
8551The search stars on the current article and goes forwards unless
8552BACKWARD is non-nil. If BACKWARD is `all', do all articles.
8553If UNREAD is non-nil, only unread articles will
8554be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 8555in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
8556not match REGEXP on HEADER."
8557 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
8558 articles d func)
8559 (if (consp header)
8560 (if (eq (car header) 'extra)
8561 (setq func
8562 `(lambda (h)
8563 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
8564 "")))
8565 (error "%s is an invalid header" header))
8566 (unless (fboundp (intern (concat "mail-header-" header)))
8567 (error "%s is not a valid header" header))
8568 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
8569 (dolist (d (if (eq backward 'all)
8570 gnus-newsgroup-data
8571 (gnus-data-find-list
8572 (gnus-summary-article-number)
8573 (gnus-data-list backward))))
8574 (when (and (or (not unread) ; We want all articles...
8575 (gnus-data-unread-p d)) ; Or just unreads.
8576 (vectorp (gnus-data-header d)) ; It's not a pseudo.
8577 (if not-matching
a1506d29 8578 (not (string-match
47b63dfa
SZ
8579 regexp
8580 (funcall func (gnus-data-header d))))
8581 (string-match regexp
8582 (funcall func (gnus-data-header d)))))
8583 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
8584 (nreverse articles)))
8585
8586(defun gnus-summary-execute-command (header regexp command &optional backward)
8587 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
8588If HEADER is an empty string (or nil), the match is done on the entire
8589article. If BACKWARD (the prefix) is non-nil, search backward instead."
8590 (interactive
8591 (list (let ((completion-ignore-case t))
8592 (completing-read
8593 "Header name: "
23f87bed
MB
8594 (mapcar (lambda (header) (list (format "%s" header)))
8595 (append
8596 '("Number" "Subject" "From" "Lines" "Date"
8597 "Message-ID" "Xref" "References" "Body")
8598 gnus-extra-headers))
eec82323
LMI
8599 nil 'require-match))
8600 (read-string "Regexp: ")
8601 (read-key-sequence "Command: ")
8602 current-prefix-arg))
8603 (when (equal header "Body")
8604 (setq header ""))
eec82323
LMI
8605 ;; Hidden thread subtrees must be searched as well.
8606 (gnus-summary-show-all-threads)
8607 ;; We don't want to change current point nor window configuration.
8608 (save-excursion
8609 (save-window-excursion
23f87bed
MB
8610 (let (gnus-visual
8611 gnus-treat-strip-trailing-blank-lines
8612 gnus-treat-strip-leading-blank-lines
8613 gnus-treat-strip-multiple-blank-lines
8614 gnus-treat-hide-boring-headers
8615 gnus-treat-fold-newsgroups
8616 gnus-article-prepare-hook)
8617 (gnus-message 6 "Executing %s..." (key-description command))
8618 ;; We'd like to execute COMMAND interactively so as to give arguments.
8619 (gnus-execute header regexp
8620 `(call-interactively ',(key-binding command))
8621 backward)
8622 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
8623
8624(defun gnus-summary-beginning-of-article ()
8625 "Scroll the article back to the beginning."
8626 (interactive)
eec82323
LMI
8627 (gnus-summary-select-article)
8628 (gnus-configure-windows 'article)
8629 (gnus-eval-in-buffer-window gnus-article-buffer
8630 (widen)
8631 (goto-char (point-min))
23f87bed 8632 (when gnus-break-pages
eec82323
LMI
8633 (gnus-narrow-to-page))))
8634
8635(defun gnus-summary-end-of-article ()
8636 "Scroll to the end of the article."
8637 (interactive)
eec82323
LMI
8638 (gnus-summary-select-article)
8639 (gnus-configure-windows 'article)
8640 (gnus-eval-in-buffer-window gnus-article-buffer
8641 (widen)
8642 (goto-char (point-max))
8643 (recenter -3)
23f87bed
MB
8644 (when gnus-break-pages
8645 (when (re-search-backward page-delimiter nil t)
8646 (narrow-to-region (match-end 0) (point-max)))
eec82323
LMI
8647 (gnus-narrow-to-page))))
8648
23f87bed
MB
8649(defun gnus-summary-print-truncate-and-quote (string &optional len)
8650 "Truncate to LEN and quote all \"(\"'s in STRING."
8651 (gnus-replace-in-string (if (and len (> (length string) len))
8652 (substring string 0 len)
8653 string)
8654 "[()]" "\\\\\\&"))
8655
6748645f 8656(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
8657 "Generate and print a PostScript image of the process-marked (mail) articles.
8658
8659If used interactively, print the current article if none are
8660process-marked. With prefix arg, prompt the user for the name of the
8661file to save in.
6748645f 8662
23f87bed
MB
8663When used from Lisp, accept two optional args FILENAME and N. N means
8664to print the next N articles. If N is negative, print the N previous
8665articles. If N is nil and articles have been marked with the process
8666mark, print these instead.
eec82323 8667
16409b0b 8668If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
8669printer. If FILENAME is a string, save the PostScript image in a file with
8670that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 8671to save in."
676a7cc9 8672 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
8673 (dolist (article (gnus-summary-work-articles n))
8674 (gnus-summary-select-article nil nil 'pseudo article)
8675 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 8676 (gnus-print-buffer))
676a7cc9
SZ
8677 (gnus-summary-remove-process-mark article))
8678 (ps-despool filename))
eec82323 8679
23f87bed
MB
8680(defun gnus-print-buffer ()
8681 (let ((buffer (generate-new-buffer " *print*")))
8682 (unwind-protect
8683 (progn
8684 (copy-to-buffer buffer (point-min) (point-max))
8685 (set-buffer buffer)
8686 (gnus-remove-text-with-property 'gnus-decoration)
8687 (when (gnus-visual-p 'article-highlight 'highlight)
8688 ;; Copy-to-buffer doesn't copy overlay. So redo
8689 ;; highlight.
8690 (let ((gnus-article-buffer buffer))
8691 (gnus-article-highlight-citation t)
8692 (gnus-article-highlight-signature)
8693 (gnus-article-emphasize)
8694 (gnus-article-delete-invisible-text)))
8695 (let ((ps-left-header
8696 (list
8697 (concat "("
8698 (gnus-summary-print-truncate-and-quote
8699 (mail-header-subject gnus-current-headers)
8700 66) ")")
8701 (concat "("
8702 (gnus-summary-print-truncate-and-quote
8703 (mail-header-from gnus-current-headers)
8704 45) ")")))
8705 (ps-right-header
8706 (list
8707 "/pagenumberstring load"
8708 (concat "("
8709 (mail-header-date gnus-current-headers) ")"))))
8710 (gnus-run-hooks 'gnus-ps-print-hook)
8711 (save-excursion
8712 (if window-system
8713 (ps-spool-buffer-with-faces)
8714 (ps-spool-buffer)))))
8715 (kill-buffer buffer))))
8716
eec82323 8717(defun gnus-summary-show-article (&optional arg)
23f87bed 8718 "Force redisplaying of the current article.
16409b0b
GM
8719If ARG (the prefix) is a number, show the article with the charset
8720defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 8721input.
16409b0b 8722If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
8723without any article massaging functions being run. Normally, the key
8724strokes are `C-u g'."
eec82323 8725 (interactive "P")
16409b0b
GM
8726 (cond
8727 ((numberp arg)
23f87bed 8728 (gnus-summary-show-article t)
16409b0b
GM
8729 (let ((gnus-newsgroup-charset
8730 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
8731 (mm-read-coding-system
8732 "View as charset: " ;; actually it is coding system.
8733 (save-excursion
8734 (set-buffer gnus-article-buffer)
8735 (mm-detect-coding-region (point) (point-max))))))
16409b0b 8736 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
8737 (gnus-summary-select-article nil 'force)
8738 (let ((deps gnus-newsgroup-dependencies)
8739 head header lines)
8740 (save-excursion
8741 (set-buffer gnus-original-article-buffer)
8742 (save-restriction
8743 (message-narrow-to-head)
8744 (setq head (buffer-string))
8745 (goto-char (point-min))
8746 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
8747 (goto-char (point-max))
8748 (widen)
8749 (setq lines (1- (count-lines (point) (point-max))))))
8750 (with-temp-buffer
8751 (insert (format "211 %d Article retrieved.\n"
8752 (cdr gnus-article-current)))
8753 (insert head)
8754 (if lines (insert (format "Lines: %d\n" lines)))
8755 (insert ".\n")
8756 (let ((nntp-server-buffer (current-buffer)))
8757 (setq header (car (gnus-get-newsgroup-headers deps t))))))
8758 (gnus-data-set-header
8759 (gnus-data-find (cdr gnus-article-current))
8760 header)
8761 (gnus-summary-update-article-line
8762 (cdr gnus-article-current) header)
8763 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
8764 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
8765 ((not arg)
8766 ;; Select the article the normal way.
8767 (gnus-summary-select-article nil 'force))
8768 (t
8769 ;; We have to require this here to make sure that the following
8770 ;; dynamic binding isn't shadowed by autoloading.
8771 (require 'gnus-async)
8772 (require 'gnus-art)
eec82323
LMI
8773 ;; Bind the article treatment functions to nil.
8774 (let ((gnus-have-all-headers t)
eec82323 8775 gnus-article-prepare-hook
16409b0b
GM
8776 gnus-article-decode-hook
8777 gnus-display-mime-function
8778 gnus-break-pages)
8779 ;; Destroy any MIME parts.
8780 (when (gnus-buffer-live-p gnus-article-buffer)
8781 (save-excursion
8782 (set-buffer gnus-article-buffer)
8783 (mm-destroy-parts gnus-article-mime-handles)
8784 ;; Set it to nil for safety reason.
8785 (setq gnus-article-mime-handle-alist nil)
8786 (setq gnus-article-mime-handles nil)))
8787 (gnus-summary-select-article nil 'force))))
eec82323
LMI
8788 (gnus-summary-goto-subject gnus-current-article)
8789 (gnus-summary-position-point))
8790
23f87bed
MB
8791(defun gnus-summary-show-raw-article ()
8792 "Show the raw article without any article massaging functions being run."
8793 (interactive)
8794 (gnus-summary-show-article t))
8795
eec82323
LMI
8796(defun gnus-summary-verbose-headers (&optional arg)
8797 "Toggle permanent full header display.
8798If ARG is a positive number, turn header display on.
8799If ARG is a negative number, turn header display off."
8800 (interactive "P")
eec82323
LMI
8801 (setq gnus-show-all-headers
8802 (cond ((or (not (numberp arg))
8803 (zerop arg))
8804 (not gnus-show-all-headers))
8805 ((natnump arg)
8806 t)))
8807 (gnus-summary-show-article))
8808
8809(defun gnus-summary-toggle-header (&optional arg)
8810 "Show the headers if they are hidden, or hide them if they are shown.
8811If ARG is a positive number, show the entire header.
8812If ARG is a negative number, hide the unwanted header lines."
8813 (interactive "P")
23f87bed
MB
8814 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
8815 (get-buffer-window gnus-article-buffer t))))
8816 (with-current-buffer gnus-article-buffer
8817 (widen)
8818 (article-narrow-to-head)
16409b0b
GM
8819 (let* ((buffer-read-only nil)
8820 (inhibit-point-motion-hooks t)
23f87bed
MB
8821 (hidden (if (numberp arg)
8822 (>= arg 0)
f0096211
MB
8823 (or (not (looking-at "[^ \t\n]+:"))
8824 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
8825 s e)
8826 (delete-region (point-min) (point-max))
667e0ba6
SM
8827 (with-current-buffer gnus-original-article-buffer
8828 (goto-char (setq s (point-min)))
23f87bed
MB
8829 (setq e (if (search-forward "\n\n" nil t)
8830 (1- (point))
8831 (point-max))))
667e0ba6 8832 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
8833 (run-hooks 'gnus-article-decode-hook)
8834 (if hidden
8835 (let ((gnus-treat-hide-headers nil)
8836 (gnus-treat-hide-boring-headers nil))
8837 (gnus-delete-wash-type 'headers)
8838 (gnus-treat-article 'head))
8839 (gnus-treat-article 'head))
8840 (widen)
8841 (if window
8842 (set-window-start window (goto-char (point-min))))
8843 (if gnus-break-pages
8844 (gnus-narrow-to-page)
8845 (when (gnus-visual-p 'page-marker)
8846 (let ((buffer-read-only nil))
8847 (gnus-remove-text-with-property 'gnus-prev)
8848 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 8849 (gnus-set-mode-line 'article)))))
eec82323
LMI
8850
8851(defun gnus-summary-show-all-headers ()
8852 "Make all header lines visible."
8853 (interactive)
23f87bed 8854 (gnus-summary-toggle-header 1))
eec82323 8855
eec82323
LMI
8856(defun gnus-summary-caesar-message (&optional arg)
8857 "Caesar rotate the current article by 13.
8858The numerical prefix specifies how many places to rotate each letter
8859forward."
8860 (interactive "P")
eec82323
LMI
8861 (gnus-summary-select-article)
8862 (let ((mail-header-separator ""))
8863 (gnus-eval-in-buffer-window gnus-article-buffer
8864 (save-restriction
8865 (widen)
8866 (let ((start (window-start))
8867 buffer-read-only)
8868 (message-caesar-buffer-body arg)
ff4d3926
MB
8869 (set-window-start (get-buffer-window (current-buffer)) start)))))
8870 ;; Create buttons and stuff...
8871 (gnus-treat-article nil))
eec82323 8872
23f87bed
MB
8873(autoload 'unmorse-region "morse"
8874 "Convert morse coded text in region to ordinary ASCII text."
8875 t)
8876
8877(defun gnus-summary-morse-message (&optional arg)
8878 "Morse decode the current article."
8879 (interactive "P")
8880 (gnus-summary-select-article)
8881 (let ((mail-header-separator ""))
8882 (gnus-eval-in-buffer-window gnus-article-buffer
8883 (save-excursion
8884 (save-restriction
8885 (widen)
8886 (let ((pos (window-start))
8887 buffer-read-only)
8888 (goto-char (point-min))
8889 (when (message-goto-body)
8890 (gnus-narrow-to-body))
8891 (goto-char (point-min))
8892