gnus-html.el: Add the new command gnus-html-show-images.
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
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2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
114f9c96 4;; 2005, 2006, 2007, 2008, 2009, 2010 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
5e809f55 11;; GNU Emacs is free software: you can redistribute it and/or modify
eec82323 12;; it under the terms of the GNU General Public License as published by
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13;; the Free Software Foundation, either version 3 of the License, or
14;; (at your option) any later version.
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15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
01ccbb85 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
5e809f55 22;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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23
24;;; Commentary:
25
26;;; Code:
27
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28;; For Emacs < 22.2.
29(eval-and-compile
30 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
23f87bed 31(eval-when-compile
9efa445f 32 (require 'cl))
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33(eval-when-compile
34 (when (featurep 'xemacs)
35 (require 'easy-mmode))) ; for `define-minor-mode'
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36
37(defvar tool-bar-mode)
38(defvar gnus-tmp-header)
5ab7173c 39
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40(require 'gnus)
41(require 'gnus-group)
42(require 'gnus-spec)
43(require 'gnus-range)
44(require 'gnus-int)
45(require 'gnus-undo)
6748645f 46(require 'gnus-util)
18c06a99 47(require 'gmm-utils)
16409b0b 48(require 'mm-decode)
08c9a385 49(require 'nnoo)
23f87bed 50
6748645f 51(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 52(autoload 'gnus-cache-write-active "gnus-cache")
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53(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
54(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
531e5812 55(autoload 'gnus-pick-line-number "gnus-salt" nil t)
08c9a385 56(autoload 'mm-uu-dissect "mm-uu")
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57(autoload 'gnus-article-outlook-deuglify-article "deuglify"
58 "Deuglify broken Outlook (Express) articles and redisplay."
59 t)
60(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
61(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
62(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
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63
64(defcustom gnus-kill-summary-on-exit t
65 "*If non-nil, kill the summary buffer when you exit from it.
66If nil, the summary will become a \"*Dead Summary*\" buffer, and
67it will be killed sometime later."
68 :group 'gnus-summary-exit
69 :type 'boolean)
70
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71(defcustom gnus-summary-next-group-on-exit t
72 "If non-nil, go to the next unread newsgroup on summary exit.
73See `gnus-group-goto-unread'."
74 :link '(custom-manual "(gnus)Group Maneuvering")
75 :group 'gnus-summary-exit
330f707b 76 :version "23.1" ;; No Gnus
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77 :type 'boolean)
78
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79(defcustom gnus-summary-stop-at-end-of-message nil
80 "If non-nil, don't select the next message when using `SPC'."
81 :link '(custom-manual "(gnus)Group Maneuvering")
82 :group 'gnus-summary-maneuvering
1a10d421 83 :version "24.1"
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84 :type 'boolean)
85
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86(defcustom gnus-fetch-old-headers nil
87 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
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88If an unread article in the group refers to an older, already
89read (or just marked as read) article, the old article will not
90normally be displayed in the Summary buffer. If this variable is
91t, Gnus will attempt to grab the headers to the old articles, and
92thereby build complete threads. If it has the value `some', all
93old headers will be fetched but only enough headers to connect
94otherwise loose threads will be displayed. This variable can
95also be a number. In that case, no more than that number of old
96headers will be fetched. If it has the value `invisible', all
6748645f 97old headers will be fetched, but none will be displayed.
eec82323 98
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99The server has to support NOV for any of this to work.
100
101This feature can seriously impact performance it ignores all
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102locally cached header entries. Setting it to t for groups for a
103server that doesn't expire articles (such as news.gmane.org),
104leads to very slow summary generation."
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105 :group 'gnus-thread
106 :type '(choice (const :tag "off" nil)
1232b9cb 107 (const :tag "on" t)
eec82323 108 (const some)
1232b9cb 109 (const invisible)
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110 number
111 (sexp :menu-tag "other" t)))
112
01c52d31 113(defcustom gnus-refer-thread-limit 500
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114 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
115If t, fetch all the available old headers."
116 :group 'gnus-thread
117 :type '(choice number
118 (sexp :menu-tag "other" t)))
119
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120(defcustom gnus-summary-make-false-root 'adopt
121 "*nil means that Gnus won't gather loose threads.
122If the root of a thread has expired or been read in a previous
123session, the information necessary to build a complete thread has been
124lost. Instead of having many small sub-threads from this original thread
125scattered all over the summary buffer, Gnus can gather them.
126
127If non-nil, Gnus will try to gather all loose sub-threads from an
128original thread into one large thread.
129
130If this variable is non-nil, it should be one of `none', `adopt',
131`dummy' or `empty'.
132
133If this variable is `none', Gnus will not make a false root, but just
134present the sub-threads after another.
135If this variable is `dummy', Gnus will create a dummy root that will
136have all the sub-threads as children.
137If this variable is `adopt', Gnus will make one of the \"children\"
138the parent and mark all the step-children as such.
139If this variable is `empty', the \"children\" are printed with empty
01ccbb85 140subject fields. (Or rather, they will be printed with a string
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141given by the `gnus-summary-same-subject' variable.)"
142 :group 'gnus-thread
143 :type '(choice (const :tag "off" nil)
144 (const none)
145 (const dummy)
146 (const adopt)
147 (const empty)))
148
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149(defcustom gnus-summary-make-false-root-always nil
150 "Always make a false dummy root."
bf247b6e 151 :version "22.1"
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152 :group 'gnus-thread
153 :type 'boolean)
154
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155(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
156 "*A regexp to match subjects to be excluded from loose thread gathering.
157As loose thread gathering is done on subjects only, that means that
158there can be many false gatherings performed. By rooting out certain
159common subjects, gathering might become saner."
160 :group 'gnus-thread
161 :type 'regexp)
162
163(defcustom gnus-summary-gather-subject-limit nil
164 "*Maximum length of subject comparisons when gathering loose threads.
165Use nil to compare full subjects. Setting this variable to a low
166number will help gather threads that have been corrupted by
167newsreaders chopping off subject lines, but it might also mean that
168unrelated articles that have subject that happen to begin with the
169same few characters will be incorrectly gathered.
170
171If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
172comparing subjects."
173 :group 'gnus-thread
174 :type '(choice (const :tag "off" nil)
175 (const fuzzy)
176 (sexp :menu-tag "on" t)))
177
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178(defcustom gnus-simplify-subject-functions nil
179 "List of functions taking a string argument that simplify subjects.
180The functions are applied recursively.
181
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182Useful functions to put in this list include:
183`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
184`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
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185 :group 'gnus-thread
186 :type '(repeat function))
187
eec82323 188(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 189 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
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190 :group 'gnus-thread
191 :type '(choice (const :tag "off" nil)
192 regexp))
193
194(defcustom gnus-build-sparse-threads nil
195 "*If non-nil, fill in the gaps in threads.
196If `some', only fill in the gaps that are needed to tie loose threads
197together. If `more', fill in all leaf nodes that Gnus can find. If
198non-nil and non-`some', fill in all gaps that Gnus manages to guess."
199 :group 'gnus-thread
200 :type '(choice (const :tag "off" nil)
201 (const some)
202 (const more)
203 (sexp :menu-tag "all" t)))
204
205(defcustom gnus-summary-thread-gathering-function
206 'gnus-gather-threads-by-subject
6748645f 207 "*Function used for gathering loose threads.
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208There are two pre-defined functions: `gnus-gather-threads-by-subject',
209which only takes Subjects into consideration; and
210`gnus-gather-threads-by-references', which compared the References
211headers of the articles to find matches."
212 :group 'gnus-thread
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213 :type '(radio (function-item gnus-gather-threads-by-subject)
214 (function-item gnus-gather-threads-by-references)
215 (function :tag "other")))
eec82323 216
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217(defcustom gnus-summary-same-subject ""
218 "*String indicating that the current article has the same subject as the previous.
219This variable will only be used if the value of
220`gnus-summary-make-false-root' is `empty'."
221 :group 'gnus-summary-format
222 :type 'string)
223
1d297c49 224(defcustom gnus-summary-goto-unread nil
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225 "*If t, many commands will go to the next unread article.
226This applies to marking commands as well as other commands that
227\"naturally\" select the next article, like, for instance, `SPC' at
228the end of an article.
229
230If nil, the marking commands do NOT go to the next unread article
2642ac8f 231\(they go to the next article instead). If `never', commands that
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232usually go to the next unread article, will go to the next article,
233whether it is read or not."
1d297c49 234 :version "24.1"
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235 :group 'gnus-summary-marks
236 :link '(custom-manual "(gnus)Setting Marks")
237 :type '(choice (const :tag "off" nil)
238 (const never)
239 (sexp :menu-tag "on" t)))
240
241(defcustom gnus-summary-default-score 0
242 "*Default article score level.
243All scores generated by the score files will be added to this score.
244If this variable is nil, scoring will be disabled."
245 :group 'gnus-score-default
246 :type '(choice (const :tag "disable")
247 integer))
248
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249(defcustom gnus-summary-default-high-score 0
250 "*Default threshold for a high scored article.
251An article will be highlighted as high scored if its score is greater
252than this score."
bf247b6e 253 :version "22.1"
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254 :group 'gnus-score-default
255 :type 'integer)
256
257(defcustom gnus-summary-default-low-score 0
258 "*Default threshold for a low scored article.
259An article will be highlighted as low scored if its score is smaller
260than this score."
bf247b6e 261 :version "22.1"
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262 :group 'gnus-score-default
263 :type 'integer)
264
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265(defcustom gnus-summary-zcore-fuzz 0
266 "*Fuzziness factor for the zcore in the summary buffer.
267Articles with scores closer than this to `gnus-summary-default-score'
268will not be marked."
269 :group 'gnus-summary-format
270 :type 'integer)
271
272(defcustom gnus-simplify-subject-fuzzy-regexp nil
273 "*Strings to be removed when doing fuzzy matches.
274This can either be a regular expression or list of regular expressions
275that will be removed from subject strings if fuzzy subject
276simplification is selected."
277 :group 'gnus-thread
278 :type '(repeat regexp))
279
280(defcustom gnus-show-threads t
281 "*If non-nil, display threads in summary mode."
282 :group 'gnus-thread
283 :type 'boolean)
284
285(defcustom gnus-thread-hide-subtree nil
286 "*If non-nil, hide all threads initially.
23f87bed 287This can be a predicate specifier which says which threads to hide.
eec82323 288If threads are hidden, you have to run the command
4a2358e9 289`gnus-summary-show-thread' by hand or select an article."
eec82323 290 :group 'gnus-thread
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291 :type '(radio (sexp :format "Non-nil\n"
292 :match (lambda (widget value)
293 (not (or (consp value) (functionp value))))
294 :value t)
295 (const nil)
ad136a7c 296 (sexp :tag "Predicate specifier")))
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297
298(defcustom gnus-thread-hide-killed t
299 "*If non-nil, hide killed threads automatically."
300 :group 'gnus-thread
301 :type 'boolean)
302
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303(defcustom gnus-thread-ignore-subject t
304 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
305If nil, articles that have different subjects from their parents will
306start separate threads."
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307 :group 'gnus-thread
308 :type 'boolean)
309
310(defcustom gnus-thread-operation-ignore-subject t
311 "*If non-nil, subjects will be ignored when doing thread commands.
312This affects commands like `gnus-summary-kill-thread' and
313`gnus-summary-lower-thread'.
314
315If this variable is nil, articles in the same thread with different
316subjects will not be included in the operation in question. If this
317variable is `fuzzy', only articles that have subjects that are fuzzily
318equal will be included."
319 :group 'gnus-thread
320 :type '(choice (const :tag "off" nil)
321 (const fuzzy)
322 (sexp :tag "on" t)))
323
324(defcustom gnus-thread-indent-level 4
325 "*Number that says how much each sub-thread should be indented."
326 :group 'gnus-thread
327 :type 'integer)
328
329(defcustom gnus-auto-extend-newsgroup t
330 "*If non-nil, extend newsgroup forward and backward when requested."
331 :group 'gnus-summary-choose
332 :type 'boolean)
333
334(defcustom gnus-auto-select-first t
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335 "If non-nil, select an article on group entry.
336An article is selected automatically when entering a group
337e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
338`gnus-summary-catchup-and-goto-next-group'.
339
340Which article is selected is controlled by the variable
341`gnus-auto-select-subject'.
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342
343If you want to prevent automatic selection of articles in some
344newsgroups, set the variable to nil in `gnus-select-group-hook'."
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345 ;; Commands include...
346 ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
347 ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
348 ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
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349 :group 'gnus-group-select
350 :type '(choice (const :tag "none" nil)
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351 (sexp :menu-tag "first" t)))
352
a1347097 353(defcustom gnus-auto-select-subject 'unseen-or-unread
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354 "*Says what subject to place under point when entering a group.
355
356This variable can either be the symbols `first' (place point on the
357first subject), `unread' (place point on the subject line of the first
358unread article), `best' (place point on the subject line of the
359higest-scored article), `unseen' (place point on the subject line of
99b5aab7 360the first unseen article), `unseen-or-unread' (place point on the subject
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361line of the first unseen article or, if all article have been seen, on the
362subject line of the first unread article), or a function to be called to
363place point on some subject line."
a1347097 364 :version "24.1"
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365 :group 'gnus-group-select
366 :type '(choice (const best)
367 (const unread)
368 (const first)
369 (const unseen)
370 (const unseen-or-unread)))
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371
372(defcustom gnus-auto-select-next t
373 "*If non-nil, offer to go to the next group from the end of the previous.
374If the value is t and the next newsgroup is empty, Gnus will exit
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375summary mode and go back to group mode. If the value is neither nil
376nor t, Gnus will select the following unread newsgroup. In
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377particular, if the value is the symbol `quietly', the next unread
378newsgroup will be selected without any confirmation, and if it is
379`almost-quietly', the next group will be selected without any
380confirmation if you are located on the last article in the group.
23f87bed 381Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
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382will go to the next group without confirmation."
383 :group 'gnus-summary-maneuvering
384 :type '(choice (const :tag "off" nil)
385 (const quietly)
386 (const almost-quietly)
387 (const slightly-quietly)
388 (sexp :menu-tag "on" t)))
389
390(defcustom gnus-auto-select-same nil
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391 "*If non-nil, select the next article with the same subject.
392If there are no more articles with the same subject, go to
393the first unread article."
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394 :group 'gnus-summary-maneuvering
395 :type 'boolean)
396
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397(defcustom gnus-auto-select-on-ephemeral-exit 'next-noselect
398 "What article should be selected after exiting an ephemeral group.
399Valid values include:
400
401`next'
402 Select the next article.
403`next-unread'
404 Select the next unread article.
405`next-noselect'
406 Move the cursor to the next article. This is the default.
407`next-unread-noselect'
408 Move the cursor to the next unread article.
409
410If it has any other value or there is no next (unread) article, the
411article selected before entering to the ephemeral group will appear."
330f707b 412 :version "23.1" ;; No Gnus
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413 :group 'gnus-summary-maneuvering
414 :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
415 (const next) (const next-unread)
416 (const next-noselect) (const next-unread-noselect)
417 (sexp :tag "other" :value nil)))
418
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419(defcustom gnus-auto-goto-ignores 'unfetched
420 "*Says how to handle unfetched articles when maneuvering.
421
422This variable can either be the symbols nil (maneuver to any
423article), `undownloaded' (maneuvering while unplugged ignores articles
424that have not been fetched), `always-undownloaded' (maneuvering always
425ignores articles that have not been fetched), `unfetched' (maneuvering
426ignores articles whose headers have not been fetched).
427
428NOTE: The list of unfetched articles will always be nil when plugged
429and, when unplugged, a subset of the undownloaded article list."
bf247b6e 430 :version "22.1"
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431 :group 'gnus-summary-maneuvering
432 :type '(choice (const :tag "None" nil)
433 (const :tag "Undownloaded when unplugged" undownloaded)
434 (const :tag "Undownloaded" always-undownloaded)
435 (const :tag "Unfetched" unfetched)))
436
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437(defcustom gnus-summary-check-current nil
438 "*If non-nil, consider the current article when moving.
439The \"unread\" movement commands will stay on the same line if the
440current article is unread."
441 :group 'gnus-summary-maneuvering
442 :type 'boolean)
443
01c52d31 444(defcustom gnus-auto-center-summary 2
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445 "*If non-nil, always center the current summary buffer.
446In particular, if `vertical' do only vertical recentering. If non-nil
447and non-`vertical', do both horizontal and vertical recentering."
448 :group 'gnus-summary-maneuvering
449 :type '(choice (const :tag "none" nil)
450 (const vertical)
16409b0b 451 (integer :tag "height")
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452 (sexp :menu-tag "both" t)))
453
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454(defvar gnus-auto-center-group t
455 "*If non-nil, always center the group buffer.")
456
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457(defcustom gnus-show-all-headers nil
458 "*If non-nil, don't hide any headers."
459 :group 'gnus-article-hiding
460 :group 'gnus-article-headers
461 :type 'boolean)
462
463(defcustom gnus-summary-ignore-duplicates nil
464 "*If non-nil, ignore articles with identical Message-ID headers."
465 :group 'gnus-summary
466 :type 'boolean)
6748645f 467
1d297c49 468(defcustom gnus-single-article-buffer nil
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469 "*If non-nil, display all articles in the same buffer.
470If nil, each group will get its own article buffer."
1d297c49 471 :version "24.1"
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472 :group 'gnus-article-various
473 :type 'boolean)
474
475(defcustom gnus-break-pages t
476 "*If non-nil, do page breaking on articles.
477The page delimiter is specified by the `gnus-page-delimiter'
478variable."
479 :group 'gnus-article-various
480 :type 'boolean)
481
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482(defcustom gnus-move-split-methods nil
483 "*Variable used to suggest where articles are to be moved to.
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484It uses the same syntax as the `gnus-split-methods' variable.
485However, whereas `gnus-split-methods' specifies file names as targets,
486this variable specifies group names."
eec82323 487 :group 'gnus-summary-mail
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488 :type '(repeat (choice (list :value (fun) function)
489 (cons :value ("" "") regexp (repeat string))
490 (sexp :value nil))))
eec82323 491
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492(defcustom gnus-move-group-prefix-function 'gnus-group-real-prefix
493 "Function used to compute default prefix for article move/copy/etc prompts.
494The function should take one argument, a group name, and return a
495string with the suggested prefix."
496 :group 'gnus-summary-mail
497 :type 'function)
498
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499;; FIXME: Although the custom type is `character' for the following variables,
500;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
501
23f87bed 502(defcustom gnus-unread-mark ? ;Whitespace
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503 "*Mark used for unread articles."
504 :group 'gnus-summary-marks
505 :type 'character)
506
507(defcustom gnus-ticked-mark ?!
508 "*Mark used for ticked articles."
509 :group 'gnus-summary-marks
510 :type 'character)
511
512(defcustom gnus-dormant-mark ??
513 "*Mark used for dormant articles."
514 :group 'gnus-summary-marks
515 :type 'character)
516
517(defcustom gnus-del-mark ?r
518 "*Mark used for del'd articles."
519 :group 'gnus-summary-marks
520 :type 'character)
521
522(defcustom gnus-read-mark ?R
523 "*Mark used for read articles."
524 :group 'gnus-summary-marks
525 :type 'character)
526
527(defcustom gnus-expirable-mark ?E
528 "*Mark used for expirable articles."
529 :group 'gnus-summary-marks
530 :type 'character)
531
532(defcustom gnus-killed-mark ?K
533 "*Mark used for killed articles."
534 :group 'gnus-summary-marks
535 :type 'character)
536
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537(defcustom gnus-spam-mark ?$
538 "*Mark used for spam articles."
bf247b6e 539 :version "22.1"
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540 :group 'gnus-summary-marks
541 :type 'character)
542
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543(defcustom gnus-kill-file-mark ?X
544 "*Mark used for articles killed by kill files."
545 :group 'gnus-summary-marks
546 :type 'character)
547
548(defcustom gnus-low-score-mark ?Y
549 "*Mark used for articles with a low score."
550 :group 'gnus-summary-marks
551 :type 'character)
552
553(defcustom gnus-catchup-mark ?C
554 "*Mark used for articles that are caught up."
555 :group 'gnus-summary-marks
556 :type 'character)
557
558(defcustom gnus-replied-mark ?A
559 "*Mark used for articles that have been replied to."
560 :group 'gnus-summary-marks
561 :type 'character)
562
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563(defcustom gnus-forwarded-mark ?F
564 "*Mark used for articles that have been forwarded."
bf247b6e 565 :version "22.1"
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566 :group 'gnus-summary-marks
567 :type 'character)
568
569(defcustom gnus-recent-mark ?N
570 "*Mark used for articles that are recent."
bf247b6e 571 :version "22.1"
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572 :group 'gnus-summary-marks
573 :type 'character)
574
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575(defcustom gnus-cached-mark ?*
576 "*Mark used for articles that are in the cache."
577 :group 'gnus-summary-marks
578 :type 'character)
579
580(defcustom gnus-saved-mark ?S
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581 "*Mark used for articles that have been saved."
582 :group 'gnus-summary-marks
583 :type 'character)
584
585(defcustom gnus-unseen-mark ?.
586 "*Mark used for articles that haven't been seen."
bf247b6e 587 :version "22.1"
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588 :group 'gnus-summary-marks
589 :type 'character)
590
591(defcustom gnus-no-mark ? ;Whitespace
592 "*Mark used for articles that have no other secondary mark."
bf247b6e 593 :version "22.1"
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594 :group 'gnus-summary-marks
595 :type 'character)
596
597(defcustom gnus-ancient-mark ?O
598 "*Mark used for ancient articles."
599 :group 'gnus-summary-marks
600 :type 'character)
601
602(defcustom gnus-sparse-mark ?Q
603 "*Mark used for sparsely reffed articles."
604 :group 'gnus-summary-marks
605 :type 'character)
606
607(defcustom gnus-canceled-mark ?G
608 "*Mark used for canceled articles."
609 :group 'gnus-summary-marks
610 :type 'character)
611
612(defcustom gnus-duplicate-mark ?M
613 "*Mark used for duplicate articles."
614 :group 'gnus-summary-marks
615 :type 'character)
616
23f87bed 617(defcustom gnus-undownloaded-mark ?-
6748645f 618 "*Mark used for articles that weren't downloaded."
bf247b6e 619 :version "22.1"
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620 :group 'gnus-summary-marks
621 :type 'character)
622
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623(defcustom gnus-downloaded-mark ?+
624 "*Mark used for articles that were downloaded."
625 :group 'gnus-summary-marks
626 :type 'character)
627
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628(defcustom gnus-downloadable-mark ?%
629 "*Mark used for articles that are to be downloaded."
630 :group 'gnus-summary-marks
631 :type 'character)
632
633(defcustom gnus-unsendable-mark ?=
634 "*Mark used for articles that won't be sent."
635 :group 'gnus-summary-marks
636 :type 'character)
637
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638(defcustom gnus-score-over-mark ?+
639 "*Score mark used for articles with high scores."
640 :group 'gnus-summary-marks
641 :type 'character)
642
643(defcustom gnus-score-below-mark ?-
644 "*Score mark used for articles with low scores."
645 :group 'gnus-summary-marks
646 :type 'character)
647
23f87bed 648(defcustom gnus-empty-thread-mark ? ;Whitespace
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649 "*There is no thread under the article."
650 :group 'gnus-summary-marks
651 :type 'character)
652
653(defcustom gnus-not-empty-thread-mark ?=
654 "*There is a thread under the article."
655 :group 'gnus-summary-marks
656 :type 'character)
657
658(defcustom gnus-view-pseudo-asynchronously nil
659 "*If non-nil, Gnus will view pseudo-articles asynchronously."
660 :group 'gnus-extract-view
661 :type 'boolean)
662
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663(defcustom gnus-auto-expirable-marks
664 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
665 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
c4d82de8 666 gnus-duplicate-mark)
16409b0b 667 "*The list of marks converted into expiration if a group is auto-expirable."
b0e30310 668 :version "24.1"
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669 :group 'gnus-summary
670 :type '(repeat character))
671
672(defcustom gnus-inhibit-user-auto-expire t
673 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 674 :version "21.1"
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675 :group 'gnus-summary
676 :type 'boolean)
677
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678(defcustom gnus-mark-copied-or-moved-articles-as-expirable nil
679 "If non-nil, mark articles copied or moved to auto-expire group as expirable.
680If nil, the expirable marks will be unchanged except that the marks
681will be removed when copying or moving articles to a group that has
682not turned auto-expire on. If non-nil, articles that have been read
683will be marked as expirable when being copied or moved to a group in
684which auto-expire is turned on."
685 :version "23.2"
686 :type 'boolean
687 :group 'gnus-summary-marks)
688
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689(defcustom gnus-view-pseudos nil
690 "*If `automatic', pseudo-articles will be viewed automatically.
691If `not-confirm', pseudos will be viewed automatically, and the user
692will not be asked to confirm the command."
693 :group 'gnus-extract-view
694 :type '(choice (const :tag "off" nil)
695 (const automatic)
696 (const not-confirm)))
697
698(defcustom gnus-view-pseudos-separately t
699 "*If non-nil, one pseudo-article will be created for each file to be viewed.
700If nil, all files that use the same viewing command will be given as a
701list of parameters to that command."
702 :group 'gnus-extract-view
703 :type 'boolean)
704
705(defcustom gnus-insert-pseudo-articles t
706 "*If non-nil, insert pseudo-articles when decoding articles."
707 :group 'gnus-extract-view
708 :type 'boolean)
709
710(defcustom gnus-summary-dummy-line-format
23f87bed 711 " %(: :%) %S\n"
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712 "*The format specification for the dummy roots in the summary buffer.
713It works along the same lines as a normal formatting string,
714with some simple extensions.
715
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716%S The subject
717
718General format specifiers can also be used.
719See `(gnus)Formatting Variables'."
720 :link '(custom-manual "(gnus)Formatting Variables")
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721 :group 'gnus-threading
722 :type 'string)
723
16409b0b 724(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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725 "*The format specification for the summary mode line.
726It works along the same lines as a normal formatting string,
727with some simple extensions:
728
729%G Group name
730%p Unprefixed group name
731%A Current article number
6748645f 732%z Current article score
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733%V Gnus version
734%U Number of unread articles in the group
735%e Number of unselected articles in the group
736%Z A string with unread/unselected article counts
737%g Shortish group name
738%S Subject of the current article
739%u User-defined spec
740%s Current score file name
741%d Number of dormant articles
742%r Number of articles that have been marked as read in this session
743%E Number of articles expunged by the score files"
744 :group 'gnus-summary-format
745 :type 'string)
746
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747(defcustom gnus-list-identifiers nil
748 "Regexp that matches list identifiers to be removed from subject.
749This can also be a list of regexps."
58e39d05 750 :version "21.1"
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751 :group 'gnus-summary-format
752 :group 'gnus-article-hiding
753 :type '(choice (const :tag "none" nil)
754 (regexp :value ".*")
755 (repeat :value (".*") regexp)))
756
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757(defcustom gnus-summary-mark-below 0
758 "*Mark all articles with a score below this variable as read.
759This variable is local to each summary buffer and usually set by the
760score file."
761 :group 'gnus-score-default
762 :type 'integer)
763
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764(defun gnus-widget-reversible-match (widget value)
765 "Ignoring WIDGET, convert VALUE to internal form.
766VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
767 ;; (debug value)
768 (or (symbolp value)
769 (and (listp value)
770 (eq (length value) 2)
771 (eq (nth 0 value) 'not)
772 (symbolp (nth 1 value)))))
773
774(defun gnus-widget-reversible-to-internal (widget value)
775 "Ignoring WIDGET, convert VALUE to internal form.
776VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
777FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
778 ;; (debug value)
779 (if (atom value)
780 (list value nil)
781 (list (nth 1 value) t)))
782
783(defun gnus-widget-reversible-to-external (widget value)
784 "Ignoring WIDGET, convert VALUE to external form.
785VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
786\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
787 ;; (debug value)
788 (if (nth 1 value)
789 (list 'not (nth 0 value))
790 (nth 0 value)))
791
792(define-widget 'gnus-widget-reversible 'group
793 "A `group' that convert values."
794 :match 'gnus-widget-reversible-match
795 :value-to-internal 'gnus-widget-reversible-to-internal
796 :value-to-external 'gnus-widget-reversible-to-external)
797
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798(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
799 "*List of functions used for sorting articles in the summary buffer.
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800
801Each function takes two articles and returns non-nil if the first
802article should be sorted before the other. If you use more than one
803function, the primary sort function should be the last. You should
804probably always include `gnus-article-sort-by-number' in the list of
805sorting functions -- preferably first. Also note that sorting by date
806is often much slower than sorting by number, and the sorting order is
807very similar. (Sorting by date means sorting by the time the message
808was sent, sorting by number means sorting by arrival time.)
809
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810Each item can also be a list `(not F)' where F is a function;
811this reverses the sort order.
812
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813Ready-made functions include `gnus-article-sort-by-number',
814`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
815`gnus-article-sort-by-date', `gnus-article-sort-by-random'
816and `gnus-article-sort-by-score'.
817
818When threading is turned on, the variable `gnus-thread-sort-functions'
819controls how articles are sorted."
eec82323 820 :group 'gnus-summary-sort
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821 :type '(repeat (gnus-widget-reversible
822 (choice (function-item gnus-article-sort-by-number)
823 (function-item gnus-article-sort-by-author)
824 (function-item gnus-article-sort-by-subject)
825 (function-item gnus-article-sort-by-date)
826 (function-item gnus-article-sort-by-score)
827 (function-item gnus-article-sort-by-random)
828 (function :tag "other"))
829 (boolean :tag "Reverse order"))))
830
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831
832(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
833 "*List of functions used for sorting threads in the summary buffer.
834By default, threads are sorted by article number.
835
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836Each function takes two threads and returns non-nil if the first
837thread should be sorted before the other. If you use more than one
838function, the primary sort function should be the last. You should
839probably always include `gnus-thread-sort-by-number' in the list of
840sorting functions -- preferably first. Also note that sorting by date
841is often much slower than sorting by number, and the sorting order is
842very similar. (Sorting by date means sorting by the time the message
843was sent, sorting by number means sorting by arrival time.)
eec82323 844
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845Each list item can also be a list `(not F)' where F is a
846function; this specifies reversed sort order.
847
eec82323 848Ready-made functions include `gnus-thread-sort-by-number',
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849`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
850`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
851`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
852`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
853and `gnus-thread-sort-by-total-score' (see
854`gnus-thread-score-function').
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855
856When threading is turned off, the variable
857`gnus-article-sort-functions' controls how articles are sorted."
eec82323 858 :group 'gnus-summary-sort
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859 :type '(repeat
860 (gnus-widget-reversible
861 (choice (function-item gnus-thread-sort-by-number)
862 (function-item gnus-thread-sort-by-author)
863 (function-item gnus-thread-sort-by-recipient)
864 (function-item gnus-thread-sort-by-subject)
865 (function-item gnus-thread-sort-by-date)
866 (function-item gnus-thread-sort-by-score)
867 (function-item gnus-thread-sort-by-most-recent-number)
868 (function-item gnus-thread-sort-by-most-recent-date)
869 (function-item gnus-thread-sort-by-random)
870 (function-item gnus-thread-sort-by-total-score)
871 (function :tag "other"))
872 (boolean :tag "Reverse order"))))
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873
874(defcustom gnus-thread-score-function '+
875 "*Function used for calculating the total score of a thread.
876
877The function is called with the scores of the article and each
878subthread and should then return the score of the thread.
879
880Some functions you can use are `+', `max', or `min'."
881 :group 'gnus-summary-sort
882 :type 'function)
883
884(defcustom gnus-summary-expunge-below nil
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885 "All articles that have a score less than this variable will be expunged.
886This variable is local to the summary buffers."
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887 :group 'gnus-score-default
888 :type '(choice (const :tag "off" nil)
889 integer))
890
891(defcustom gnus-thread-expunge-below nil
892 "All threads that have a total score less than this variable will be expunged.
893See `gnus-thread-score-function' for en explanation of what a
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894\"thread score\" is.
895
896This variable is local to the summary buffers."
16409b0b 897 :group 'gnus-threading
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898 :group 'gnus-score-default
899 :type '(choice (const :tag "off" nil)
900 integer))
901
902(defcustom gnus-summary-mode-hook nil
903 "*A hook for Gnus summary mode.
904This hook is run before any variables are set in the summary buffer."
23f87bed 905 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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906 :group 'gnus-summary-various
907 :type 'hook)
908
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909;; Extracted from gnus-xmas-redefine in order to preserve user settings
910(when (featurep 'xemacs)
911 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
912 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
913 (add-hook 'gnus-summary-mode-hook
914 'gnus-xmas-switch-horizontal-scrollbar-off))
915
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916(defcustom gnus-summary-menu-hook nil
917 "*Hook run after the creation of the summary mode menu."
918 :group 'gnus-summary-visual
919 :type 'hook)
920
921(defcustom gnus-summary-exit-hook nil
922 "*A hook called on exit from the summary buffer.
923It will be called with point in the group buffer."
924 :group 'gnus-summary-exit
925 :type 'hook)
926
927(defcustom gnus-summary-prepare-hook nil
928 "*A hook called after the summary buffer has been generated.
929If you want to modify the summary buffer, you can use this hook."
930 :group 'gnus-summary-various
931 :type 'hook)
932
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933(defcustom gnus-summary-prepared-hook nil
934 "*A hook called as the last thing after the summary buffer has been generated."
935 :group 'gnus-summary-various
936 :type 'hook)
937
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938(defcustom gnus-summary-generate-hook nil
939 "*A hook run just before generating the summary buffer.
940This hook is commonly used to customize threading variables and the
941like."
942 :group 'gnus-summary-various
943 :type 'hook)
944
945(defcustom gnus-select-group-hook nil
946 "*A hook called when a newsgroup is selected.
947
948If you'd like to simplify subjects like the
949`gnus-summary-next-same-subject' command does, you can use the
950following hook:
951
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952 (add-hook gnus-select-group-hook
953 (lambda ()
954 (mapcar (lambda (header)
955 (mail-header-set-subject
956 header
957 (gnus-simplify-subject
958 (mail-header-subject header) 're-only)))
959 gnus-newsgroup-headers)))"
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960 :group 'gnus-group-select
961 :type 'hook)
962
963(defcustom gnus-select-article-hook nil
964 "*A hook called when an article is selected."
965 :group 'gnus-summary-choose
23f87bed 966 :options '(gnus-agent-fetch-selected-article)
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967 :type 'hook)
968
969(defcustom gnus-visual-mark-article-hook
970 (list 'gnus-highlight-selected-summary)
971 "*Hook run after selecting an article in the summary buffer.
972It is meant to be used for highlighting the article in some way. It
973is not run if `gnus-visual' is nil."
974 :group 'gnus-summary-visual
975 :type 'hook)
976
16409b0b 977(defcustom gnus-parse-headers-hook nil
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978 "*A hook called before parsing the headers."
979 :group 'gnus-various
980 :type 'hook)
981
982(defcustom gnus-exit-group-hook nil
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983 "*A hook called when exiting summary mode.
984This hook is not called from the non-updating exit commands like `Q'."
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985 :group 'gnus-various
986 :type 'hook)
987
988(defcustom gnus-summary-update-hook
989 (list 'gnus-summary-highlight-line)
990 "*A hook called when a summary line is changed.
991The hook will not be called if `gnus-visual' is nil.
992
993The default function `gnus-summary-highlight-line' will
994highlight the line according to the `gnus-summary-highlight'
995variable."
996 :group 'gnus-summary-visual
997 :type 'hook)
998
999(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
1000 "*A hook called when an article is selected for the first time.
1001The hook is intended to mark an article as read (or unread)
1002automatically when it is selected."
1003 :group 'gnus-summary-choose
1004 :type 'hook)
1005
1006(defcustom gnus-group-no-more-groups-hook nil
1007 "*A hook run when returning to group mode having no more (unread) groups."
1008 :group 'gnus-group-select
1009 :type 'hook)
1010
1011(defcustom gnus-ps-print-hook nil
1012 "*A hook run before ps-printing something from Gnus."
1013 :group 'gnus-summary
1014 :type 'hook)
1015
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1016(defcustom gnus-summary-article-move-hook nil
1017 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1018 :version "22.1"
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1019 :group 'gnus-summary
1020 :type 'hook)
1021
1022(defcustom gnus-summary-article-delete-hook nil
1023 "*A hook called after an article is deleted."
bf247b6e 1024 :version "22.1"
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1025 :group 'gnus-summary
1026 :type 'hook)
1027
1028(defcustom gnus-summary-article-expire-hook nil
1029 "*A hook called after an article is expired."
bf247b6e 1030 :version "22.1"
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1031 :group 'gnus-summary
1032 :type 'hook)
1033
1034(defcustom gnus-summary-display-arrow
1035 (and (fboundp 'display-graphic-p)
1036 (display-graphic-p))
1037 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1038 :version "22.1"
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1039 :group 'gnus-summary
1040 :type 'boolean)
1041
0f49874b 1042(defcustom gnus-summary-selected-face 'gnus-summary-selected
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1043 "Face used for highlighting the current article in the summary buffer."
1044 :group 'gnus-summary-visual
1045 :type 'face)
1046
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1047(defvar gnus-tmp-downloaded nil)
1048
eec82323 1049(defcustom gnus-summary-highlight
23f87bed 1050 '(((eq mark gnus-canceled-mark)
0f49874b 1051 . gnus-summary-cancelled)
23f87bed 1052 ((and uncached (> score default-high))
0f49874b 1053 . gnus-summary-high-undownloaded)
23f87bed 1054 ((and uncached (< score default-low))
0f49874b 1055 . gnus-summary-low-undownloaded)
23f87bed 1056 (uncached
0f49874b 1057 . gnus-summary-normal-undownloaded)
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1058 ((and (> score default-high)
1059 (or (eq mark gnus-dormant-mark)
1060 (eq mark gnus-ticked-mark)))
0f49874b 1061 . gnus-summary-high-ticked)
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1062 ((and (< score default-low)
1063 (or (eq mark gnus-dormant-mark)
1064 (eq mark gnus-ticked-mark)))
0f49874b 1065 . gnus-summary-low-ticked)
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1066 ((or (eq mark gnus-dormant-mark)
1067 (eq mark gnus-ticked-mark))
0f49874b 1068 . gnus-summary-normal-ticked)
23f87bed 1069 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1070 . gnus-summary-high-ancient)
23f87bed 1071 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1072 . gnus-summary-low-ancient)
23f87bed 1073 ((eq mark gnus-ancient-mark)
0f49874b 1074 . gnus-summary-normal-ancient)
23f87bed 1075 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1076 . gnus-summary-high-unread)
23f87bed 1077 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1078 . gnus-summary-low-unread)
23f87bed 1079 ((eq mark gnus-unread-mark)
0f49874b 1080 . gnus-summary-normal-unread)
23f87bed 1081 ((> score default-high)
0f49874b 1082 . gnus-summary-high-read)
23f87bed 1083 ((< score default-low)
0f49874b 1084 . gnus-summary-low-read)
eec82323 1085 (t
0f49874b 1086 . gnus-summary-normal-read))
6748645f 1087 "*Controls the highlighting of summary buffer lines.
eec82323 1088
107cf8ec 1089A list of (FORM . FACE) pairs. When deciding how a particular
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1090summary line should be displayed, each form is evaluated. The content
1091of the face field after the first true form is used. You can change
1092how those summary lines are displayed, by editing the face field.
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1093
1094You can use the following variables in the FORM field.
1095
107cf8ec 1096score: The article's score.
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1097default: The default article score.
1098default-high: The default score for high scored articles.
1099default-low: The default score for low scored articles.
1100below: The score below which articles are automatically marked as read.
1101mark: The article's mark.
1102uncached: Non-nil if the article is uncached."
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1103 :group 'gnus-summary-visual
1104 :type '(repeat (cons (sexp :tag "Form" nil)
1105 face)))
c12ecb0a 1106(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1107
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1108(defcustom gnus-alter-header-function nil
1109 "Function called to allow alteration of article header structures.
1110The function is called with one parameter, the article header vector,
0ab0f2d3
SZ
1111which it may alter in any way."
1112 :type '(choice (const :tag "None" nil)
1113 function)
1114 :group 'gnus-summary)
eec82323 1115
16409b0b 1116(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
343d6628
MB
1117 "Function used to decode a string with encoded words.")
1118
1119(defvar gnus-decode-encoded-address-function
1120 'mail-decode-encoded-address-string
1121 "Function used to decode addresses with encoded words.")
16409b0b 1122
23f87bed 1123(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1124 "*Extra headers to parse."
58e39d05 1125 :version "21.1"
16409b0b
GM
1126 :group 'gnus-summary
1127 :type '(repeat symbol))
1128
1129(defcustom gnus-ignored-from-addresses
343d6628 1130 (and user-mail-address
7cd9f860
CY
1131 (not (string= user-mail-address ""))
1132 (regexp-quote user-mail-address))
01c52d31
MB
1133 "*From headers that may be suppressed in favor of To headers.
1134This can be a regexp or a list of regexps."
58e39d05 1135 :version "21.1"
16409b0b 1136 :group 'gnus-summary
01c52d31
MB
1137 :type '(choice regexp
1138 (repeat :tag "Regexp List" regexp)))
1139
1140(defsubst gnus-ignored-from-addresses ()
1141 (gmm-regexp-concat gnus-ignored-from-addresses))
1142
1143(defcustom gnus-summary-to-prefix "-> "
1144 "*String prefixed to the To field in the summary line when
1145using `gnus-ignored-from-addresses'."
1146 :version "22.1"
1147 :group 'gnus-summary
1148 :type 'string)
1149
1150(defcustom gnus-summary-newsgroup-prefix "=> "
1151 "*String prefixed to the Newsgroup field in the summary
1152line when using `gnus-ignored-from-addresses'."
1153 :version "22.1"
1154 :group 'gnus-summary
1155 :type 'string)
16409b0b 1156
16409b0b
GM
1157(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1158 "List of charsets that should be ignored.
1159When these charsets are used in the \"charset\" parameter, the
1160default charset will be used instead."
58e39d05 1161 :version "21.1"
16409b0b
GM
1162 :type '(repeat symbol)
1163 :group 'gnus-charset)
1164
4b70e299
MB
1165(defcustom gnus-newsgroup-maximum-articles nil
1166 "The maximum number of articles a newsgroup.
1167If this is a number, old articles in a newsgroup exceeding this number
1168are silently ignored. If it is nil, no article is ignored. Note that
1169setting this variable to a number might prevent you from reading very
1170old articles."
1171 :group 'gnus-group-select
1172 :version "22.2"
1173 :type '(choice (const :tag "No limit" nil)
1174 integer))
1175
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MB
1176(gnus-define-group-parameter
1177 ignored-charsets
1178 :type list
1179 :function-document
1180 "Return the ignored charsets of GROUP."
1181 :variable gnus-group-ignored-charsets-alist
1182 :variable-default
1183 '(("alt\\.chinese\\.text" iso-8859-1))
1184 :variable-document
1185 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1186When these charsets are used in the \"charset\" parameter, the
1187default charset will be used instead."
23f87bed
MB
1188 :variable-group gnus-charset
1189 :variable-type '(repeat (cons (regexp :tag "Group")
1190 (repeat symbol)))
1191 :parameter-type '(choice :tag "Ignored charsets"
1192 :value nil
1193 (repeat (symbol)))
1194 :parameter-document "\
1195List of charsets that should be ignored.
1196
1197When these charsets are used in the \"charset\" parameter, the
1198default charset will be used instead.")
16409b0b
GM
1199
1200(defcustom gnus-group-highlight-words-alist nil
1201 "Alist of group regexps and highlight regexps.
1202This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1203 :version "21.1"
16409b0b
GM
1204 :type '(repeat (cons (regexp :tag "Group")
1205 (repeat (list (regexp :tag "Highlight regexp")
1206 (number :tag "Group for entire word" 0)
1207 (number :tag "Group for displayed part" 0)
1208 (symbol :tag "Face"
1209 gnus-emphasis-highlight-words)))))
1210 :group 'gnus-summary-visual)
1211
1212(defcustom gnus-summary-show-article-charset-alist
1213 nil
1214 "Alist of number and charset.
1215The article will be shown with the charset corresponding to the
1216numbered argument.
1217For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1218 :version "21.1"
16409b0b
GM
1219 :type '(repeat (cons (number :tag "Argument" 1)
1220 (symbol :tag "Charset")))
1221 :group 'gnus-charset)
1222
1223(defcustom gnus-preserve-marks t
1224 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1225 :version "21.1"
16409b0b
GM
1226 :type 'boolean
1227 :group 'gnus-summary-marks)
1228
3a23a519
MB
1229(defcustom gnus-propagate-marks t
1230 "If non-nil, do not propagate marks to the backends."
f8a29505 1231 :version "23.1" ;; No Gnus
3a23a519
MB
1232 :type 'boolean
1233 :group 'gnus-summary-marks)
1234
16409b0b
GM
1235(defcustom gnus-alter-articles-to-read-function nil
1236 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1237 :type '(choice (const nil) function)
16409b0b
GM
1238 :group 'gnus-summary)
1239
1240(defcustom gnus-orphan-score nil
1241 "*All orphans get this score added. Set in the score file."
1242 :group 'gnus-score-default
1243 :type '(choice (const nil)
1244 integer))
1245
8b93df01 1246(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1247 "*A regexp to match MIME parts when saving multiple parts of a
1248message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1249This regexp will be used by default when prompting the user for which
1250type of files to save."
8b93df01
DL
1251 :group 'gnus-summary
1252 :type 'regexp)
1253
23f87bed
MB
1254(defcustom gnus-read-all-available-headers nil
1255 "Whether Gnus should parse all headers made available to it.
1256This is mostly relevant for slow back ends where the user may
1257wish to widen the summary buffer to include all headers
c4d82de8 1258that were fetched."
bf247b6e 1259 :version "22.1"
23f87bed
MB
1260 :group 'gnus-summary
1261 :type '(choice boolean regexp))
1262
89167438
MB
1263(defcustom gnus-summary-pipe-output-default-command nil
1264 "Command (and optional arguments) used to pipe article to subprocess.
1265This will be used as the default command if it is non-nil. The value
1266will be updated if you modify it when executing the command
1267`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1268 :version "23.1" ;; No Gnus
1269 :group 'gnus-summary
1270 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1271
23f87bed 1272(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1273 "Command (and optional arguments) used to run Muttprint.
1274The value will be updated if you modify it when executing the command
1275`gnus-summary-muttprint'."
bf247b6e 1276 :version "22.1"
23f87bed
MB
1277 :group 'gnus-summary
1278 :type 'string)
1279
01c52d31 1280(defcustom gnus-article-loose-mime t
23f87bed
MB
1281 "If non-nil, don't require MIME-Version header.
1282Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1283supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1284If non-nil (the default), Gnus will treat some articles as MIME
1285even if the MIME-Version header is missing."
bf247b6e 1286 :version "22.1"
23f87bed
MB
1287 :type 'boolean
1288 :group 'gnus-article-mime)
1289
1290(defcustom gnus-article-emulate-mime t
1291 "If non-nil, use MIME emulation for uuencode and the like.
1292This means that Gnus will search message bodies for text that look
1293like uuencoded bits, yEncoded bits, and so on, and present that using
1294the normal Gnus MIME machinery."
bf247b6e 1295 :version "22.1"
23f87bed
MB
1296 :type 'boolean
1297 :group 'gnus-article-mime)
8b93df01 1298
eec82323
LMI
1299;;; Internal variables
1300
23f87bed 1301(defvar gnus-summary-display-cache nil)
16409b0b
GM
1302(defvar gnus-article-mime-handles nil)
1303(defvar gnus-article-decoded-p nil)
23f87bed
MB
1304(defvar gnus-article-charset nil)
1305(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1306(defvar gnus-scores-exclude-files nil)
1307(defvar gnus-page-broken nil)
1308
1309(defvar gnus-original-article nil)
1310(defvar gnus-article-internal-prepare-hook nil)
1311(defvar gnus-newsgroup-process-stack nil)
1312
1313(defvar gnus-thread-indent-array nil)
1314(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1315(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1316 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1317
8b93df01 1318(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1319(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1320
eec82323
LMI
1321;; Avoid highlighting in kill files.
1322(defvar gnus-summary-inhibit-highlight nil)
1323(defvar gnus-newsgroup-selected-overlay nil)
1324(defvar gnus-inhibit-limiting nil)
1325(defvar gnus-newsgroup-adaptive-score-file nil)
1326(defvar gnus-current-score-file nil)
1327(defvar gnus-current-move-group nil)
1328(defvar gnus-current-copy-group nil)
1329(defvar gnus-current-crosspost-group nil)
23f87bed 1330(defvar gnus-newsgroup-display nil)
eec82323
LMI
1331
1332(defvar gnus-newsgroup-dependencies nil)
1333(defvar gnus-newsgroup-adaptive nil)
1334(defvar gnus-summary-display-article-function nil)
1335(defvar gnus-summary-highlight-line-function nil
1336 "Function called after highlighting a summary line.")
1337
1338(defvar gnus-summary-line-format-alist
1339 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1340 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1341 (?s gnus-tmp-subject-or-nil ?s)
1342 (?n gnus-tmp-name ?s)
1343 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1344 ?s)
1345 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1346 gnus-tmp-from) ?s)
1347 (?F gnus-tmp-from ?s)
1348 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1349 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1350 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1351 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1352 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1353 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1354 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1355 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1356 (?L gnus-tmp-lines ?s)
1357 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1358 (?I gnus-tmp-indentation ?s)
1359 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1360 (?R gnus-tmp-replied ?c)
1361 (?\[ gnus-tmp-opening-bracket ?c)
1362 (?\] gnus-tmp-closing-bracket ?c)
1363 (?\> (make-string gnus-tmp-level ? ) ?s)
1364 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1365 (?i gnus-tmp-score ?d)
1366 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1367 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1368 (?U gnus-tmp-unread ?c)
23f87bed
MB
1369 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1370 ?s)
eec82323
LMI
1371 (?t (gnus-summary-number-of-articles-in-thread
1372 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1373 ?d)
1374 (?e (gnus-summary-number-of-articles-in-thread
1375 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1376 ?c)
1377 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1378 (?P (gnus-pick-line-number) ?d)
1379 (?B gnus-tmp-thread-tree-header-string ?s)
1380 (user-date (gnus-user-date
1381 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1382 "An alist of format specifications that can appear in summary lines.
1383These are paired with what variables they correspond with, along with
1384the type of the variable (string, integer, character, etc).")
eec82323
LMI
1385
1386(defvar gnus-summary-dummy-line-format-alist
1387 `((?S gnus-tmp-subject ?s)
1388 (?N gnus-tmp-number ?d)
1389 (?u gnus-tmp-user-defined ?s)))
1390
1391(defvar gnus-summary-mode-line-format-alist
1392 `((?G gnus-tmp-group-name ?s)
1393 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1394 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1395 (?A gnus-tmp-article-number ?d)
1396 (?Z gnus-tmp-unread-and-unselected ?s)
1397 (?V gnus-version ?s)
1398 (?U gnus-tmp-unread-and-unticked ?d)
1399 (?S gnus-tmp-subject ?s)
1400 (?e gnus-tmp-unselected ?d)
1401 (?u gnus-tmp-user-defined ?s)
1402 (?d (length gnus-newsgroup-dormant) ?d)
1403 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1404 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1405 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1406 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1407 (?E gnus-newsgroup-expunged-tally ?d)
1408 (?s (gnus-current-score-file-nondirectory) ?s)))
1409
c1717fbd
GM
1410;; This is here rather than in gnus-art for compilation reasons.
1411(defvar gnus-article-mode-line-format-alist
1412 (nconc '((?w (gnus-article-wash-status) ?s)
1413 (?m (gnus-article-mime-part-status) ?s))
1414 gnus-summary-mode-line-format-alist))
1415
eec82323
LMI
1416(defvar gnus-last-search-regexp nil
1417 "Default regexp for article search command.")
1418
1419(defvar gnus-last-shell-command nil
1420 "Default shell command on article.")
1421
23f87bed
MB
1422(defvar gnus-newsgroup-agentized nil
1423 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1424(defvar gnus-newsgroup-begin nil)
1425(defvar gnus-newsgroup-end nil)
1426(defvar gnus-newsgroup-last-rmail nil)
1427(defvar gnus-newsgroup-last-mail nil)
1428(defvar gnus-newsgroup-last-folder nil)
1429(defvar gnus-newsgroup-last-file nil)
26c9afc3 1430(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1431(defvar gnus-newsgroup-auto-expire nil)
1432(defvar gnus-newsgroup-active nil)
1433
1434(defvar gnus-newsgroup-data nil)
1435(defvar gnus-newsgroup-data-reverse nil)
1436(defvar gnus-newsgroup-limit nil)
1437(defvar gnus-newsgroup-limits nil)
23f87bed 1438(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1439
1440(defvar gnus-newsgroup-unreads nil
23f87bed 1441 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1442
1443(defvar gnus-newsgroup-unselected nil
23f87bed 1444 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1445
1446(defvar gnus-newsgroup-reads nil
1447 "Alist of read articles and article marks in the current newsgroup.")
1448
1449(defvar gnus-newsgroup-expunged-tally nil)
1450
1451(defvar gnus-newsgroup-marked nil
23f87bed
MB
1452 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1453
1454(defvar gnus-newsgroup-spam-marked nil
1455 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1456
1457(defvar gnus-newsgroup-killed nil
1458 "List of ranges of articles that have been through the scoring process.")
1459
1460(defvar gnus-newsgroup-cached nil
23f87bed 1461 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1462
1463(defvar gnus-newsgroup-saved nil
1464 "List of articles that have been saved.")
1465
1466(defvar gnus-newsgroup-kill-headers nil)
1467
1468(defvar gnus-newsgroup-replied nil
1469 "List of articles that have been replied to in the current newsgroup.")
1470
23f87bed
MB
1471(defvar gnus-newsgroup-forwarded nil
1472 "List of articles that have been forwarded in the current newsgroup.")
1473
1474(defvar gnus-newsgroup-recent nil
1475 "List of articles that have are recent in the current newsgroup.")
1476
eec82323 1477(defvar gnus-newsgroup-expirable nil
23f87bed 1478 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1479
1480(defvar gnus-newsgroup-processable nil
1481 "List of articles in the current newsgroup that can be processed.")
1482
6748645f 1483(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1484 "Sorted list of articles in the current newsgroup that can be processed.")
1485
1486(defvar gnus-newsgroup-unfetched nil
1487 "Sorted list of articles in the current newsgroup whose headers have
1488not been fetched into the agent.
1489
1490This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1491
1492(defvar gnus-newsgroup-undownloaded nil
23f87bed 1493 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1494
1495(defvar gnus-newsgroup-unsendable nil
1496 "List of articles in the current newsgroup that won't be sent.")
1497
eec82323
LMI
1498(defvar gnus-newsgroup-bookmarks nil
1499 "List of articles in the current newsgroup that have bookmarks.")
1500
1501(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1502 "Sorted list of dormant articles in the current newsgroup.")
1503
1504(defvar gnus-newsgroup-unseen nil
1505 "List of unseen articles in the current newsgroup.")
1506
1507(defvar gnus-newsgroup-seen nil
1508 "Range of seen articles in the current newsgroup.")
1509
1510(defvar gnus-newsgroup-articles nil
1511 "List of articles in the current newsgroup.")
eec82323
LMI
1512
1513(defvar gnus-newsgroup-scored nil
1514 "List of scored articles in the current newsgroup.")
1515
1516(defvar gnus-newsgroup-headers nil
1517 "List of article headers in the current newsgroup.")
1518
1519(defvar gnus-newsgroup-threads nil)
1520
1521(defvar gnus-newsgroup-prepared nil
1522 "Whether the current group has been prepared properly.")
1523
1524(defvar gnus-newsgroup-ancient nil
1525 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1526
1527(defvar gnus-newsgroup-sparse nil)
1528
1529(defvar gnus-current-article nil)
1530(defvar gnus-article-current nil)
1531(defvar gnus-current-headers nil)
1532(defvar gnus-have-all-headers nil)
1533(defvar gnus-last-article nil)
1534(defvar gnus-newsgroup-history nil)
16409b0b
GM
1535(defvar gnus-newsgroup-charset nil)
1536(defvar gnus-newsgroup-ephemeral-charset nil)
1537(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1538
23f87bed
MB
1539(defvar gnus-article-before-search nil)
1540
1541(defvar gnus-summary-local-variables
eec82323
LMI
1542 '(gnus-newsgroup-name
1543 gnus-newsgroup-begin gnus-newsgroup-end
1544 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1545 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1546 gnus-newsgroup-last-directory
eec82323
LMI
1547 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1548 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1549 gnus-newsgroup-spam-marked
eec82323 1550 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1551 gnus-newsgroup-replied gnus-newsgroup-forwarded
1552 gnus-newsgroup-recent
1553 gnus-newsgroup-expirable
eec82323 1554 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1555 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1556 gnus-newsgroup-unfetched
1557 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1558 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1559 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1560 gnus-newsgroup-headers gnus-newsgroup-threads
1561 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1562 gnus-current-article gnus-current-headers gnus-have-all-headers
1563 gnus-last-article gnus-article-internal-prepare-hook
1564 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1565 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1566 gnus-thread-expunge-below
16409b0b
GM
1567 gnus-score-alist gnus-current-score-file
1568 (gnus-summary-expunge-below . global)
eec82323 1569 (gnus-summary-mark-below . global)
16409b0b 1570 (gnus-orphan-score . global)
eec82323
LMI
1571 gnus-newsgroup-active gnus-scores-exclude-files
1572 gnus-newsgroup-history gnus-newsgroup-ancient
1573 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1574 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1575 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1576 (gnus-newsgroup-expunged-tally . 0)
1577 gnus-cache-removable-articles gnus-newsgroup-cached
1578 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1579 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1580 gnus-newsgroup-charset gnus-newsgroup-display
1581 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1582 "Variables that are buffer-local to the summary buffers.")
1583
23f87bed
MB
1584(defvar gnus-newsgroup-variables nil
1585 "A list of variables that have separate values in different newsgroups.
1586A list of newsgroup (summary buffer) local variables, or cons of
1587variables and their default expressions to be evalled (when the default
1588values are not nil), that should be made global while the summary buffer
1589is active.
1590
1591Note: The default expressions will be evaluated (using function `eval')
1592before assignment to the local variable rather than just assigned to it.
1593If the default expression is the symbol `global', that symbol will not
1594be evaluated but the global value of the local variable will be used
1595instead.
1596
1597These variables can be used to set variables in the group parameters
1598while still allowing them to affect operations done in other buffers.
1599For example:
1600
1601\(setq gnus-newsgroup-variables
1602 '(message-use-followup-to
1603 (gnus-visible-headers .
1604 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1605")
1606
23f87bed
MB
1607(eval-when-compile
1608 ;; Bind features so that require will believe that gnus-sum has
1609 ;; already been loaded (avoids infinite recursion)
1610 (let ((features (cons 'gnus-sum features)))
23f87bed 1611 (require 'gnus-art)))
eec82323 1612
16409b0b
GM
1613;; MIME stuff.
1614
1615(defvar gnus-decode-encoded-word-methods
1616 '(mail-decode-encoded-word-string)
1617 "List of methods used to decode encoded words.
1618
23f87bed
MB
1619This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1620is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1621\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1622whose names match REGEXP.
1623
1624For example:
23f87bed 1625\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1626 mail-decode-encoded-word-string
1627 (\"chinese\" . rfc1843-decode-string))")
1628
1629(defvar gnus-decode-encoded-word-methods-cache nil)
1630
1631(defun gnus-multi-decode-encoded-word-string (string)
1632 "Apply the functions from `gnus-encoded-word-methods' that match."
1633 (unless (and gnus-decode-encoded-word-methods-cache
1634 (eq gnus-newsgroup-name
1635 (car gnus-decode-encoded-word-methods-cache)))
1636 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1637 (dolist (method gnus-decode-encoded-word-methods)
1638 (if (symbolp method)
1639 (nconc gnus-decode-encoded-word-methods-cache (list method))
1640 (if (and gnus-newsgroup-name
1641 (string-match (car method) gnus-newsgroup-name))
1642 (nconc gnus-decode-encoded-word-methods-cache
1643 (list (cdr method)))))))
1644 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1645 (setq string (funcall method string))))
16409b0b 1646
eec82323
LMI
1647;; Subject simplification.
1648
6748645f 1649(defun gnus-simplify-whitespace (str)
16409b0b 1650 "Remove excessive whitespace from STR."
23f87bed
MB
1651 ;; Multiple spaces.
1652 (while (string-match "[ \t][ \t]+" str)
1653 (setq str (concat (substring str 0 (match-beginning 0))
1654 " "
1655 (substring str (match-end 0)))))
1656 ;; Leading spaces.
1657 (when (string-match "^[ \t]+" str)
1658 (setq str (substring str (match-end 0))))
1659 ;; Trailing spaces.
1660 (when (string-match "[ \t]+$" str)
1661 (setq str (substring str 0 (match-beginning 0))))
1662 str)
1663
1664(defun gnus-simplify-all-whitespace (str)
1665 "Remove all whitespace from STR."
1666 (while (string-match "[ \t\n]+" str)
1667 (setq str (replace-match "" nil nil str)))
1668 str)
6748645f 1669
eec82323
LMI
1670(defsubst gnus-simplify-subject-re (subject)
1671 "Remove \"Re:\" from subject lines."
23f87bed 1672 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1673 (substring subject (match-end 0))
1674 subject))
1675
1676(defun gnus-simplify-subject (subject &optional re-only)
1677 "Remove `Re:' and words in parentheses.
1678If RE-ONLY is non-nil, strip leading `Re:'s only."
1679 (let ((case-fold-search t)) ;Ignore case.
1680 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1681 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1682 (setq subject (substring subject (match-end 0))))
1683 ;; Remove uninteresting prefixes.
1684 (when (and (not re-only)
1685 gnus-simplify-ignored-prefixes
1686 (string-match gnus-simplify-ignored-prefixes subject))
1687 (setq subject (substring subject (match-end 0))))
1688 ;; Remove words in parentheses from end.
1689 (unless re-only
1690 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1691 (setq subject (substring subject 0 (match-beginning 0)))))
1692 ;; Return subject string.
1693 subject))
1694
1695;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1696;; all whitespace.
1697(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1698 (goto-char (point-min))
1699 (while (re-search-forward regexp nil t)
16409b0b 1700 (replace-match (or newtext ""))))
eec82323
LMI
1701
1702(defun gnus-simplify-buffer-fuzzy ()
1703 "Simplify string in the buffer fuzzily.
1704The string in the accessible portion of the current buffer is simplified.
1705It is assumed to be a single-line subject.
1706Whitespace is generally cleaned up, and miscellaneous leading/trailing
1707matter is removed. Additional things can be deleted by setting
16409b0b 1708`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1709 (let ((case-fold-search t)
1710 (modified-tick))
1711 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1712
1713 (while (not (eq modified-tick (buffer-modified-tick)))
1714 (setq modified-tick (buffer-modified-tick))
1715 (cond
1716 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
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1717 (mapc 'gnus-simplify-buffer-fuzzy-step
1718 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1719 (gnus-simplify-subject-fuzzy-regexp
1720 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1721 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1722 (gnus-simplify-buffer-fuzzy-step
1723 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1724 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1725
1726 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1727 (gnus-simplify-buffer-fuzzy-step " +" " ")
1728 (gnus-simplify-buffer-fuzzy-step " $")
1729 (gnus-simplify-buffer-fuzzy-step "^ +")))
1730
1731(defun gnus-simplify-subject-fuzzy (subject)
1732 "Simplify a subject string fuzzily.
6748645f 1733See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1734 (save-excursion
1735 (gnus-set-work-buffer)
1736 (let ((case-fold-search t))
6748645f
LMI
1737 ;; Remove uninteresting prefixes.
1738 (when (and gnus-simplify-ignored-prefixes
1739 (string-match gnus-simplify-ignored-prefixes subject))
1740 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1741 (insert subject)
1742 (inline (gnus-simplify-buffer-fuzzy))
1743 (buffer-string))))
1744
1745(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1746 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1747 (cond
6748645f
LMI
1748 (gnus-simplify-subject-functions
1749 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1750 ((null gnus-summary-gather-subject-limit)
1751 (gnus-simplify-subject-re subject))
1752 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1753 (gnus-simplify-subject-fuzzy subject))
1754 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1755 (truncate-string-to-width (gnus-simplify-subject-re subject)
1756 gnus-summary-gather-subject-limit))
eec82323
LMI
1757 (t
1758 subject)))
1759
1760(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1761 "Check whether two subjects are equal.
23f87bed 1762If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1763simplified."
eec82323
LMI
1764 (cond
1765 ((null simple-first)
1766 (equal (gnus-simplify-subject-fully s1)
1767 (gnus-simplify-subject-fully s2)))
1768 (t
1769 (equal s1
1770 (gnus-simplify-subject-fully s2)))))
1771
1772(defun gnus-summary-bubble-group ()
1773 "Increase the score of the current group.
1774This is a handy function to add to `gnus-summary-exit-hook' to
1775increase the score of each group you read."
1776 (gnus-group-add-score gnus-newsgroup-name))
1777
1778\f
1779;;;
1780;;; Gnus summary mode
1781;;;
1782
1783(put 'gnus-summary-mode 'mode-class 'special)
1784
1653df0f
SZ
1785(defvar gnus-article-commands-menu)
1786
23f87bed
MB
1787;; Non-orthogonal keys
1788
1789(gnus-define-keys gnus-summary-mode-map
1790 " " gnus-summary-next-page
1791 "\177" gnus-summary-prev-page
1792 [delete] gnus-summary-prev-page
1793 [backspace] gnus-summary-prev-page
1794 "\r" gnus-summary-scroll-up
1795 "\M-\r" gnus-summary-scroll-down
1796 "n" gnus-summary-next-unread-article
1797 "p" gnus-summary-prev-unread-article
1798 "N" gnus-summary-next-article
1799 "P" gnus-summary-prev-article
1800 "\M-\C-n" gnus-summary-next-same-subject
1801 "\M-\C-p" gnus-summary-prev-same-subject
1802 "\M-n" gnus-summary-next-unread-subject
1803 "\M-p" gnus-summary-prev-unread-subject
1804 "." gnus-summary-first-unread-article
1805 "," gnus-summary-best-unread-article
1806 "\M-s" gnus-summary-search-article-forward
1807 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1808 "\M-S" gnus-summary-repeat-search-article-forward
1809 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
MB
1810 "<" gnus-summary-beginning-of-article
1811 ">" gnus-summary-end-of-article
1812 "j" gnus-summary-goto-article
1813 "^" gnus-summary-refer-parent-article
1814 "\M-^" gnus-summary-refer-article
1815 "u" gnus-summary-tick-article-forward
1816 "!" gnus-summary-tick-article-forward
1817 "U" gnus-summary-tick-article-backward
1818 "d" gnus-summary-mark-as-read-forward
1819 "D" gnus-summary-mark-as-read-backward
1820 "E" gnus-summary-mark-as-expirable
1821 "\M-u" gnus-summary-clear-mark-forward
1822 "\M-U" gnus-summary-clear-mark-backward
1823 "k" gnus-summary-kill-same-subject-and-select
1824 "\C-k" gnus-summary-kill-same-subject
1825 "\M-\C-k" gnus-summary-kill-thread
1826 "\M-\C-l" gnus-summary-lower-thread
1827 "e" gnus-summary-edit-article
1828 "#" gnus-summary-mark-as-processable
1829 "\M-#" gnus-summary-unmark-as-processable
1830 "\M-\C-t" gnus-summary-toggle-threads
1831 "\M-\C-s" gnus-summary-show-thread
1832 "\M-\C-h" gnus-summary-hide-thread
1833 "\M-\C-f" gnus-summary-next-thread
1834 "\M-\C-b" gnus-summary-prev-thread
1835 [(meta down)] gnus-summary-next-thread
1836 [(meta up)] gnus-summary-prev-thread
1837 "\M-\C-u" gnus-summary-up-thread
1838 "\M-\C-d" gnus-summary-down-thread
1839 "&" gnus-summary-execute-command
1840 "c" gnus-summary-catchup-and-exit
1841 "\C-w" gnus-summary-mark-region-as-read
1842 "\C-t" gnus-summary-toggle-truncation
1843 "?" gnus-summary-mark-as-dormant
1844 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1845 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1846 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1847 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1848 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1849 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1850 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1851 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1852 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1853 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1854 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1855 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1856 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1857 "=" gnus-summary-expand-window
1858 "\C-x\C-s" gnus-summary-reselect-current-group
1859 "\M-g" gnus-summary-rescan-group
23f87bed
MB
1860 "\C-c\C-r" gnus-summary-caesar-message
1861 "f" gnus-summary-followup
1862 "F" gnus-summary-followup-with-original
1863 "C" gnus-summary-cancel-article
1864 "r" gnus-summary-reply
1865 "R" gnus-summary-reply-with-original
1866 "\C-c\C-f" gnus-summary-mail-forward
1867 "o" gnus-summary-save-article
1868 "\C-o" gnus-summary-save-article-mail
1869 "|" gnus-summary-pipe-output
1870 "\M-k" gnus-summary-edit-local-kill
1871 "\M-K" gnus-summary-edit-global-kill
1872 ;; "V" gnus-version
1873 "\C-c\C-d" gnus-summary-describe-group
1874 "q" gnus-summary-exit
1875 "Q" gnus-summary-exit-no-update
1876 "\C-c\C-i" gnus-info-find-node
1877 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1878 [follow-link] mouse-face
23f87bed
MB
1879 "m" gnus-summary-mail-other-window
1880 "a" gnus-summary-post-news
23f87bed
MB
1881 "x" gnus-summary-limit-to-unread
1882 "s" gnus-summary-isearch-article
1883 "t" gnus-summary-toggle-header
1884 "g" gnus-summary-show-article
1885 "l" gnus-summary-goto-last-article
1886 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1887 "\C-d" gnus-summary-enter-digest-group
1888 "\M-\C-d" gnus-summary-read-document
1889 "\M-\C-e" gnus-summary-edit-parameters
1890 "\M-\C-a" gnus-summary-customize-parameters
1891 "\C-c\C-b" gnus-bug
1892 "*" gnus-cache-enter-article
1893 "\M-*" gnus-cache-remove-article
1894 "\M-&" gnus-summary-universal-argument
1895 "\C-l" gnus-recenter
1896 "I" gnus-summary-increase-score
1897 "L" gnus-summary-lower-score
1898 "\M-i" gnus-symbolic-argument
1899 "h" gnus-summary-select-article-buffer
1900
1901 "b" gnus-article-view-part
1902 "\M-t" gnus-summary-toggle-display-buttonized
1903
1904 "V" gnus-summary-score-map
1905 "X" gnus-uu-extract-map
1906 "S" gnus-summary-send-map)
1907
1908;; Sort of orthogonal keymap
1909(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1910 "t" gnus-summary-tick-article-forward
1911 "!" gnus-summary-tick-article-forward
1912 "d" gnus-summary-mark-as-read-forward
1913 "r" gnus-summary-mark-as-read-forward
1914 "c" gnus-summary-clear-mark-forward
1915 " " gnus-summary-clear-mark-forward
1916 "e" gnus-summary-mark-as-expirable
1917 "x" gnus-summary-mark-as-expirable
1918 "?" gnus-summary-mark-as-dormant
1919 "b" gnus-summary-set-bookmark
1920 "B" gnus-summary-remove-bookmark
1921 "#" gnus-summary-mark-as-processable
1922 "\M-#" gnus-summary-unmark-as-processable
1923 "S" gnus-summary-limit-include-expunged
1924 "C" gnus-summary-catchup
1925 "H" gnus-summary-catchup-to-here
1926 "h" gnus-summary-catchup-from-here
1927 "\C-c" gnus-summary-catchup-all
1928 "k" gnus-summary-kill-same-subject-and-select
1929 "K" gnus-summary-kill-same-subject
1930 "P" gnus-uu-mark-map)
1931
1932(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1933 "c" gnus-summary-clear-above
1934 "u" gnus-summary-tick-above
1935 "m" gnus-summary-mark-above
1936 "k" gnus-summary-kill-below)
1937
1938(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1939 "/" gnus-summary-limit-to-subject
1940 "n" gnus-summary-limit-to-articles
01c52d31
MB
1941 "b" gnus-summary-limit-to-bodies
1942 "h" gnus-summary-limit-to-headers
23f87bed
MB
1943 "w" gnus-summary-pop-limit
1944 "s" gnus-summary-limit-to-subject
1945 "a" gnus-summary-limit-to-author
1946 "u" gnus-summary-limit-to-unread
1947 "m" gnus-summary-limit-to-marks
1948 "M" gnus-summary-limit-exclude-marks
1949 "v" gnus-summary-limit-to-score
1950 "*" gnus-summary-limit-include-cached
1951 "D" gnus-summary-limit-include-dormant
1952 "T" gnus-summary-limit-include-thread
1953 "d" gnus-summary-limit-exclude-dormant
1954 "t" gnus-summary-limit-to-age
1955 "." gnus-summary-limit-to-unseen
1956 "x" gnus-summary-limit-to-extra
1957 "p" gnus-summary-limit-to-display-predicate
1958 "E" gnus-summary-limit-include-expunged
1959 "c" gnus-summary-limit-exclude-childless-dormant
1960 "C" gnus-summary-limit-mark-excluded-as-read
1961 "o" gnus-summary-insert-old-articles
01c52d31
MB
1962 "N" gnus-summary-insert-new-articles
1963 "S" gnus-summary-limit-to-singletons
1964 "r" gnus-summary-limit-to-replied
1965 "R" gnus-summary-limit-to-recipient
1966 "A" gnus-summary-limit-to-address)
23f87bed
MB
1967
1968(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1969 "n" gnus-summary-next-unread-article
1970 "p" gnus-summary-prev-unread-article
1971 "N" gnus-summary-next-article
1972 "P" gnus-summary-prev-article
1973 "\C-n" gnus-summary-next-same-subject
1974 "\C-p" gnus-summary-prev-same-subject
1975 "\M-n" gnus-summary-next-unread-subject
1976 "\M-p" gnus-summary-prev-unread-subject
1977 "f" gnus-summary-first-unread-article
1978 "b" gnus-summary-best-unread-article
1979 "j" gnus-summary-goto-article
1980 "g" gnus-summary-goto-subject
1981 "l" gnus-summary-goto-last-article
1982 "o" gnus-summary-pop-article)
1983
1984(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1985 "k" gnus-summary-kill-thread
01c52d31 1986 "E" gnus-summary-expire-thread
23f87bed
MB
1987 "l" gnus-summary-lower-thread
1988 "i" gnus-summary-raise-thread
1989 "T" gnus-summary-toggle-threads
1990 "t" gnus-summary-rethread-current
1991 "^" gnus-summary-reparent-thread
01c52d31 1992 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1993 "s" gnus-summary-show-thread
1994 "S" gnus-summary-show-all-threads
1995 "h" gnus-summary-hide-thread
1996 "H" gnus-summary-hide-all-threads
1997 "n" gnus-summary-next-thread
1998 "p" gnus-summary-prev-thread
1999 "u" gnus-summary-up-thread
2000 "o" gnus-summary-top-thread
2001 "d" gnus-summary-down-thread
2002 "#" gnus-uu-mark-thread
2003 "\M-#" gnus-uu-unmark-thread)
2004
2005(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
2006 "g" gnus-summary-prepare
2007 "c" gnus-summary-insert-cached-articles
01c52d31
MB
2008 "d" gnus-summary-insert-dormant-articles
2009 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
2010
2011(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
2012 "c" gnus-summary-catchup-and-exit
2013 "C" gnus-summary-catchup-all-and-exit
2014 "E" gnus-summary-exit-no-update
2015 "Q" gnus-summary-exit
2016 "Z" gnus-summary-exit
2017 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2018 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2019 "R" gnus-summary-reselect-current-group
2020 "G" gnus-summary-rescan-group
2021 "N" gnus-summary-next-group
2022 "s" gnus-summary-save-newsrc
2023 "P" gnus-summary-prev-group)
2024
2025(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2026 " " gnus-summary-next-page
2027 "n" gnus-summary-next-page
2028 "\177" gnus-summary-prev-page
2029 [delete] gnus-summary-prev-page
2030 "p" gnus-summary-prev-page
2031 "\r" gnus-summary-scroll-up
2032 "\M-\r" gnus-summary-scroll-down
2033 "<" gnus-summary-beginning-of-article
2034 ">" gnus-summary-end-of-article
2035 "b" gnus-summary-beginning-of-article
2036 "e" gnus-summary-end-of-article
2037 "^" gnus-summary-refer-parent-article
2038 "r" gnus-summary-refer-parent-article
2039 "D" gnus-summary-enter-digest-group
2040 "R" gnus-summary-refer-references
2041 "T" gnus-summary-refer-thread
2042 "g" gnus-summary-show-article
2043 "s" gnus-summary-isearch-article
2044 "P" gnus-summary-print-article
01c52d31 2045 "S" gnus-sticky-article
23f87bed
MB
2046 "M" gnus-mailing-list-insinuate
2047 "t" gnus-article-babel)
2048
2049(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2050 "b" gnus-article-add-buttons
2051 "B" gnus-article-add-buttons-to-head
2052 "o" gnus-article-treat-overstrike
2053 "e" gnus-article-emphasize
2054 "w" gnus-article-fill-cited-article
2055 "Q" gnus-article-fill-long-lines
01c52d31 2056 "L" gnus-article-toggle-truncate-lines
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2057 "C" gnus-article-capitalize-sentences
2058 "c" gnus-article-remove-cr
2059 "q" gnus-article-de-quoted-unreadable
2060 "6" gnus-article-de-base64-unreadable
2061 "Z" gnus-article-decode-HZ
01c52d31 2062 "A" gnus-article-treat-ansi-sequences
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2063 "h" gnus-article-wash-html
2064 "u" gnus-article-unsplit-urls
2065 "s" gnus-summary-force-verify-and-decrypt
2066 "f" gnus-article-display-x-face
2067 "l" gnus-summary-stop-page-breaking
2068 "r" gnus-summary-caesar-message
2069 "m" gnus-summary-morse-message
2070 "t" gnus-summary-toggle-header
2071 "g" gnus-treat-smiley
2072 "v" gnus-summary-verbose-headers
2073 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2074 "p" gnus-article-verify-x-pgp-sig
01c52d31
MB
2075 "d" gnus-article-treat-dumbquotes
2076 "i" gnus-summary-idna-message)
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2077
2078(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2079 ;; mnemonic: deuglif*Y*
2080 "u" gnus-article-outlook-unwrap-lines
2081 "a" gnus-article-outlook-repair-attribution
2082 "c" gnus-article-outlook-rearrange-citation
2083 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2084
2085(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2086 "a" gnus-article-hide
2087 "h" gnus-article-hide-headers
2088 "b" gnus-article-hide-boring-headers
2089 "s" gnus-article-hide-signature
2090 "c" gnus-article-hide-citation
2091 "C" gnus-article-hide-citation-in-followups
2092 "l" gnus-article-hide-list-identifiers
2093 "B" gnus-article-strip-banner
2094 "P" gnus-article-hide-pem
2095 "\C-c" gnus-article-hide-citation-maybe)
2096
2097(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2098 "a" gnus-article-highlight
2099 "h" gnus-article-highlight-headers
2100 "c" gnus-article-highlight-citation
2101 "s" gnus-article-highlight-signature)
2102
2103(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2104 "f" gnus-article-treat-fold-headers
2105 "u" gnus-article-treat-unfold-headers
2106 "n" gnus-article-treat-fold-newsgroups)
2107
2108(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2109 "x" gnus-article-display-x-face
2110 "d" gnus-article-display-face
2111 "s" gnus-treat-smiley
2112 "D" gnus-article-remove-images
25f28806 2113 "W" gnus-html-show-images
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2114 "f" gnus-treat-from-picon
2115 "m" gnus-treat-mail-picon
2116 "n" gnus-treat-newsgroups-picon)
2117
2118(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2119 "w" gnus-article-decode-mime-words
2120 "c" gnus-article-decode-charset
2121 "v" gnus-mime-view-all-parts
2122 "b" gnus-article-view-part)
2123
2124(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2125 "z" gnus-article-date-ut
2126 "u" gnus-article-date-ut
2127 "l" gnus-article-date-local
2128 "p" gnus-article-date-english
2129 "e" gnus-article-date-lapsed
2130 "o" gnus-article-date-original
2131 "i" gnus-article-date-iso8601
2132 "s" gnus-article-date-user)
2133
2134(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2135 "t" gnus-article-remove-trailing-blank-lines
2136 "l" gnus-article-strip-leading-blank-lines
2137 "m" gnus-article-strip-multiple-blank-lines
2138 "a" gnus-article-strip-blank-lines
2139 "A" gnus-article-strip-all-blank-lines
2140 "s" gnus-article-strip-leading-space
2141 "e" gnus-article-strip-trailing-space
2142 "w" gnus-article-remove-leading-whitespace)
2143
2144(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2145 "v" gnus-version
2146 "f" gnus-summary-fetch-faq
2147 "d" gnus-summary-describe-group
2148 "h" gnus-summary-describe-briefly
2149 "i" gnus-info-find-node
2150 "c" gnus-group-fetch-charter
2151 "C" gnus-group-fetch-control)
2152
2153(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2154 "e" gnus-summary-expire-articles
2155 "\M-\C-e" gnus-summary-expire-articles-now
2156 "\177" gnus-summary-delete-article
2157 [delete] gnus-summary-delete-article
2158 [backspace] gnus-summary-delete-article
2159 "m" gnus-summary-move-article
2160 "r" gnus-summary-respool-article
2161 "w" gnus-summary-edit-article
2162 "c" gnus-summary-copy-article
2163 "B" gnus-summary-crosspost-article
2164 "q" gnus-summary-respool-query
2165 "t" gnus-summary-respool-trace
2166 "i" gnus-summary-import-article
2167 "I" gnus-summary-create-article
2168 "p" gnus-summary-article-posted-p)
2169
2170(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2171 "o" gnus-summary-save-article
2172 "m" gnus-summary-save-article-mail
2173 "F" gnus-summary-write-article-file
2174 "r" gnus-summary-save-article-rmail
2175 "f" gnus-summary-save-article-file
2176 "b" gnus-summary-save-article-body-file
26c9afc3 2177 "B" gnus-summary-write-article-body-file
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2178 "h" gnus-summary-save-article-folder
2179 "v" gnus-summary-save-article-vm
2180 "p" gnus-summary-pipe-output
c4d82de8 2181 "P" gnus-summary-muttprint)
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2182
2183(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2184 "b" gnus-summary-display-buttonized
2185 "m" gnus-summary-repair-multipart
2186 "v" gnus-article-view-part
2187 "o" gnus-article-save-part
01c52d31
MB
2188 "O" gnus-article-save-part-and-strip
2189 "r" gnus-article-replace-part
2190 "d" gnus-article-delete-part
2191 "t" gnus-article-view-part-as-type
2192 "j" gnus-article-jump-to-part
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2193 "c" gnus-article-copy-part
2194 "C" gnus-article-view-part-as-charset
2195 "e" gnus-article-view-part-externally
01c52d31 2196 "H" gnus-article-browse-html-article
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2197 "E" gnus-article-encrypt-body
2198 "i" gnus-article-inline-part
2199 "|" gnus-article-pipe-part)
2200
2201(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2202 "p" gnus-summary-mark-as-processable
2203 "u" gnus-summary-unmark-as-processable
2204 "U" gnus-summary-unmark-all-processable
2205 "v" gnus-uu-mark-over
2206 "s" gnus-uu-mark-series
2207 "r" gnus-uu-mark-region
2208 "g" gnus-uu-unmark-region
2209 "R" gnus-uu-mark-by-regexp
2210 "G" gnus-uu-unmark-by-regexp
2211 "t" gnus-uu-mark-thread
2212 "T" gnus-uu-unmark-thread
2213 "a" gnus-uu-mark-all
2214 "b" gnus-uu-mark-buffer
2215 "S" gnus-uu-mark-sparse
2216 "k" gnus-summary-kill-process-mark
2217 "y" gnus-summary-yank-process-mark
2218 "w" gnus-summary-save-process-mark
2219 "i" gnus-uu-invert-processable)
2220
2221(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2222 ;;"x" gnus-uu-extract-any
2223 "m" gnus-summary-save-parts
2224 "u" gnus-uu-decode-uu
2225 "U" gnus-uu-decode-uu-and-save
2226 "s" gnus-uu-decode-unshar
2227 "S" gnus-uu-decode-unshar-and-save
2228 "o" gnus-uu-decode-save
2229 "O" gnus-uu-decode-save
2230 "b" gnus-uu-decode-binhex
2231 "B" gnus-uu-decode-binhex
b890d447 2232 "Y" gnus-uu-decode-yenc
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2233 "p" gnus-uu-decode-postscript
2234 "P" gnus-uu-decode-postscript-and-save)
2235
2236(gnus-define-keys
2237 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2238 "u" gnus-uu-decode-uu-view
2239 "U" gnus-uu-decode-uu-and-save-view
2240 "s" gnus-uu-decode-unshar-view
2241 "S" gnus-uu-decode-unshar-and-save-view
2242 "o" gnus-uu-decode-save-view
2243 "O" gnus-uu-decode-save-view
2244 "b" gnus-uu-decode-binhex-view
2245 "B" gnus-uu-decode-binhex-view
2246 "p" gnus-uu-decode-postscript-view
2247 "P" gnus-uu-decode-postscript-and-save-view)
2248
2249(defvar gnus-article-post-menu nil)
2250
2251(defconst gnus-summary-menu-maxlen 20)
2252
2253(defun gnus-summary-menu-split (menu)
2254 ;; If we have lots of elements, divide them into groups of 20
2255 ;; and make a pane (or submenu) for each one.
2256 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2257 (let ((menu menu) sublists next
2258 (i 1))
2259 (while menu
2260 ;; Pull off the next gnus-summary-menu-maxlen elements
2261 ;; and make them the next element of sublist.
2262 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2263 (if next
2264 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2265 nil))
2266 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2267 (aref (car (last menu)) 0)) menu)
2268 sublists))
2269 (setq i (1+ i))
2270 (setq menu next))
2271 (nreverse sublists))
2272 ;; Few elements--put them all in one pane.
2273 menu))
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LMI
2274
2275(defun gnus-summary-make-menu-bar ()
2276 (gnus-turn-off-edit-menu 'summary)
2277
2278 (unless (boundp 'gnus-summary-misc-menu)
2279
2280 (easy-menu-define
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2281 gnus-summary-kill-menu gnus-summary-mode-map ""
2282 (cons
2283 "Score"
2284 (nconc
2285 (list
2286 ["Customize" gnus-score-customize t])
2287 (gnus-make-score-map 'increase)
2288 (gnus-make-score-map 'lower)
2289 '(("Mark"
2290 ["Kill below" gnus-summary-kill-below t]
2291 ["Mark above" gnus-summary-mark-above t]
2292 ["Tick above" gnus-summary-tick-above t]
2293 ["Clear above" gnus-summary-clear-above t])
2294 ["Current score" gnus-summary-current-score t]
2295 ["Set score" gnus-summary-set-score t]
2296 ["Switch current score file..." gnus-score-change-score-file t]
2297 ["Set mark below..." gnus-score-set-mark-below t]
2298 ["Set expunge below..." gnus-score-set-expunge-below t]
2299 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2300 ["Edit score file..." gnus-score-edit-file t]
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2301 ["Trace score" gnus-score-find-trace t]
2302 ["Find words" gnus-score-find-favourite-words t]
2303 ["Rescore buffer" gnus-summary-rescore t]
2304 ["Increase score..." gnus-summary-increase-score t]
2305 ["Lower score..." gnus-summary-lower-score t]))))
2306
2307 ;; Define both the Article menu in the summary buffer and the
2308 ;; equivalent Commands menu in the article buffer here for
2309 ;; consistency.
6748645f 2310 (let ((innards
23f87bed
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2311 `(("Hide"
2312 ["All" gnus-article-hide t]
2313 ["Headers" gnus-article-hide-headers t]
2314 ["Signature" gnus-article-hide-signature t]
2315 ["Citation" gnus-article-hide-citation t]
16409b0b 2316 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2317 ["Banner" gnus-article-strip-banner t]
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2318 ["Boring headers" gnus-article-hide-boring-headers t])
2319 ("Highlight"
2320 ["All" gnus-article-highlight t]
2321 ["Headers" gnus-article-highlight-headers t]
2322 ["Signature" gnus-article-highlight-signature t]
2323 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2324 ("MIME"
2325 ["Words" gnus-article-decode-mime-words t]
2326 ["Charset" gnus-article-decode-charset t]
2327 ["QP" gnus-article-de-quoted-unreadable t]
2328 ["Base64" gnus-article-de-base64-unreadable t]
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2329 ["View MIME buttons" gnus-summary-display-buttonized t]
2330 ["View all" gnus-mime-view-all-parts t]
2331 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2332 ["Encrypt body" gnus-article-encrypt-body
2333 :active (not (gnus-group-read-only-p))
2334 ,@(if (featurep 'xemacs) nil
2335 '(:help "Encrypt the message body on disk"))]
2336 ["Extract all parts..." gnus-summary-save-parts t]
2337 ("Multipart"
2338 ["Repair multipart" gnus-summary-repair-multipart t]
2339 ["Pipe part..." gnus-article-pipe-part t]
2340 ["Inline part" gnus-article-inline-part t]
01c52d31 2341 ["View part as type..." gnus-article-view-part-as-type t]
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MB
2342 ["Encrypt body" gnus-article-encrypt-body
2343 :active (not (gnus-group-read-only-p))
2344 ,@(if (featurep 'xemacs) nil
2345 '(:help "Encrypt the message body on disk"))]
2346 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2347 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2348 ["View part with charset..." gnus-article-view-part-as-charset t]
2349 ["Copy part" gnus-article-copy-part t]
2350 ["Save part..." gnus-article-save-part t]
2351 ["View part" gnus-article-view-part t]))
2352 ("Date"
2353 ["Local" gnus-article-date-local t]
2354 ["ISO8601" gnus-article-date-iso8601 t]
2355 ["UT" gnus-article-date-ut t]
2356 ["Original" gnus-article-date-original t]
2357 ["Lapsed" gnus-article-date-lapsed t]
2358 ["User-defined" gnus-article-date-user t])
2359 ("Display"
2360 ["Remove images" gnus-article-remove-images t]
2361 ["Toggle smiley" gnus-treat-smiley t]
2362 ["Show X-Face" gnus-article-display-x-face t]
2363 ["Show picons in From" gnus-treat-from-picon t]
2364 ["Show picons in mail headers" gnus-treat-mail-picon t]
2365 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2366 ("View as different encoding"
2367 ,@(gnus-summary-menu-split
2368 (mapcar
2369 (lambda (cs)
2370 ;; Since easymenu under Emacs doesn't allow
2371 ;; lambda forms for menu commands, we should
2372 ;; provide intern'ed function symbols.
2373 (let ((command (intern (format "\
2374gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2375 (fset command
2376 `(lambda ()
2377 (interactive)
2378 (let ((gnus-summary-show-article-charset-alist
2379 '((1 . ,cs))))
2380 (gnus-summary-show-article 1))))
2381 `[,(symbol-name cs) ,command t]))
2382 (sort (if (fboundp 'coding-system-list)
2383 (coding-system-list)
2384 (mapcar 'car mm-mime-mule-charset-alist))
2385 'string<)))))
2386 ("Washing"
2387 ("Remove Blanks"
2388 ["Leading" gnus-article-strip-leading-blank-lines t]
2389 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2390 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2391 ["All of the above" gnus-article-strip-blank-lines t]
2392 ["All" gnus-article-strip-all-blank-lines t]
2393 ["Leading space" gnus-article-strip-leading-space t]
2394 ["Trailing space" gnus-article-strip-trailing-space t]
2395 ["Leading space in headers"
2396 gnus-article-remove-leading-whitespace t])
2397 ["Overstrike" gnus-article-treat-overstrike t]
2398 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2399 ["Emphasis" gnus-article-emphasize t]
2400 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2401 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2402 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2403 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2404 ["Remove CR" gnus-article-remove-cr t]
2405 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2406 ["Base64" gnus-article-de-base64-unreadable t]
2407 ["Rot 13" gnus-summary-caesar-message
2408 ,@(if (featurep 'xemacs) '(t)
2409 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2410 ["De-IDNA" gnus-summary-idna-message t]
23f87bed
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2411 ["Morse decode" gnus-summary-morse-message t]
2412 ["Unix pipe..." gnus-summary-pipe-message t]
2413 ["Add buttons" gnus-article-add-buttons t]
2414 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2415 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2416 ["Verbose header" gnus-summary-verbose-headers t]
2417 ["Toggle header" gnus-summary-toggle-header t]
2418 ["Unfold headers" gnus-article-treat-unfold-headers t]
2419 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2420 ["Html" gnus-article-wash-html t]
23f87bed
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2421 ["Unsplit URLs" gnus-article-unsplit-urls t]
2422 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2423 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2424 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
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2425 ("(Outlook) Deuglify"
2426 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2427 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2428 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2429 ["Full (Outlook) deuglify"
2430 gnus-article-outlook-deuglify-article t])
2431 )
2432 ("Output"
2433 ["Save in default format..." gnus-summary-save-article
2434 ,@(if (featurep 'xemacs) '(t)
2435 '(:help "Save article using default method"))]
2436 ["Save in file..." gnus-summary-save-article-file
2437 ,@(if (featurep 'xemacs) '(t)
2438 '(:help "Save article in file"))]
2439 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2440 ["Save in MH folder..." gnus-summary-save-article-folder t]
2441 ["Save in VM folder..." gnus-summary-save-article-vm t]
2442 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2443 ["Save body in file..." gnus-summary-save-article-body-file t]
2444 ["Pipe through a filter..." gnus-summary-pipe-output t]
23f87bed 2445 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
MB
2446 ["Print" gnus-summary-print-article
2447 ,@(if (featurep 'xemacs) '(t)
2448 '(:help "Generate and print a PostScript image"))])
2449 ("Copy, move,... (Backend)"
707f2b38 2450 ,@(if (featurep 'xemacs) nil
531e5812 2451 '(:help "Copying, moving, expiring articles..."))
23f87bed
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2452 ["Respool article..." gnus-summary-respool-article t]
2453 ["Move article..." gnus-summary-move-article
2454 (gnus-check-backend-function
2455 'request-move-article gnus-newsgroup-name)]
2456 ["Copy article..." gnus-summary-copy-article t]
2457 ["Crosspost article..." gnus-summary-crosspost-article
2458 (gnus-check-backend-function
2459 'request-replace-article gnus-newsgroup-name)]
2460 ["Import file..." gnus-summary-import-article
2461 (gnus-check-backend-function
2462 'request-accept-article gnus-newsgroup-name)]
2463 ["Create article..." gnus-summary-create-article
2464 (gnus-check-backend-function
2465 'request-accept-article gnus-newsgroup-name)]
2466 ["Check if posted" gnus-summary-article-posted-p t]
2467 ["Edit article" gnus-summary-edit-article
2468 (not (gnus-group-read-only-p))]
2469 ["Delete article" gnus-summary-delete-article
2470 (gnus-check-backend-function
2471 'request-expire-articles gnus-newsgroup-name)]
2472 ["Query respool" gnus-summary-respool-query t]
6748645f 2473 ["Trace respool" gnus-summary-respool-trace t]
23f87bed
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2474 ["Delete expirable articles" gnus-summary-expire-articles-now
2475 (gnus-check-backend-function
2476 'request-expire-articles gnus-newsgroup-name)])
2477 ("Extract"
2478 ["Uudecode" gnus-uu-decode-uu
2479 ,@(if (featurep 'xemacs) '(t)
2480 '(:help "Decode uuencoded article(s)"))]
2481 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2482 ["Unshar" gnus-uu-decode-unshar t]
2483 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2484 ["Save" gnus-uu-decode-save t]
2485 ["Binhex" gnus-uu-decode-binhex t]
2486 ["Postscript" gnus-uu-decode-postscript t]
2487 ["All MIME parts" gnus-summary-save-parts t])
2488 ("Cache"
2489 ["Enter article" gnus-cache-enter-article t]
2490 ["Remove article" gnus-cache-remove-article t])
16409b0b 2491 ["Translate" gnus-article-babel t]
23f87bed 2492 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2493 ["Make article buffer sticky" gnus-sticky-article t]
23f87bed
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2494 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2495 ["Isearch article..." gnus-summary-isearch-article t]
2496 ["Beginning of the article" gnus-summary-beginning-of-article t]
2497 ["End of the article" gnus-summary-end-of-article t]
2498 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2499 ["Fetch referenced articles" gnus-summary-refer-references t]
2500 ["Fetch current thread" gnus-summary-refer-thread t]
2501 ["Fetch article with id..." gnus-summary-refer-article t]
2502 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2503 ["Redisplay" gnus-summary-show-article t]
2504 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2505 (easy-menu-define
23f87bed
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2506 gnus-summary-article-menu gnus-summary-mode-map ""
2507 (cons "Article" innards))
6748645f 2508
1653df0f
SZ
2509 (if (not (keymapp gnus-summary-article-menu))
2510 (easy-menu-define
2511 gnus-article-commands-menu gnus-article-mode-map ""
2512 (cons "Commands" innards))
2513 ;; in Emacs, don't share menu.
a1506d29 2514 (setq gnus-article-commands-menu
1653df0f
SZ
2515 (copy-keymap gnus-summary-article-menu))
2516 (define-key gnus-article-mode-map [menu-bar commands]
2517 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2518
2519 (easy-menu-define
23f87bed
MB
2520 gnus-summary-thread-menu gnus-summary-mode-map ""
2521 '("Threads"
2522 ["Find all messages in thread" gnus-summary-refer-thread t]
2523 ["Toggle threading" gnus-summary-toggle-threads t]
2524 ["Hide threads" gnus-summary-hide-all-threads t]
2525 ["Show threads" gnus-summary-show-all-threads t]
2526 ["Hide thread" gnus-summary-hide-thread t]
2527 ["Show thread" gnus-summary-show-thread t]
2528 ["Go to next thread" gnus-summary-next-thread t]
2529 ["Go to previous thread" gnus-summary-prev-thread t]
2530 ["Go down thread" gnus-summary-down-thread t]
2531 ["Go up thread" gnus-summary-up-thread t]
2532 ["Top of thread" gnus-summary-top-thread t]
2533 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2534 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2535 ["Lower thread score" gnus-summary-lower-thread t]
2536 ["Raise thread score" gnus-summary-raise-thread t]
2537 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2538
2539 (easy-menu-define
23f87bed
MB
2540 gnus-summary-post-menu gnus-summary-mode-map ""
2541 `("Post"
2542 ["Send a message (mail or news)" gnus-summary-post-news
2543 ,@(if (featurep 'xemacs) '(t)
531e5812 2544 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2545 ["Followup" gnus-summary-followup
2546 ,@(if (featurep 'xemacs) '(t)
2547 '(:help "Post followup to this article"))]
2548 ["Followup and yank" gnus-summary-followup-with-original
2549 ,@(if (featurep 'xemacs) '(t)
2550 '(:help "Post followup to this article, quoting its contents"))]
2551 ["Supersede article" gnus-summary-supersede-article t]
2552 ["Cancel article" gnus-summary-cancel-article
2553 ,@(if (featurep 'xemacs) '(t)
2554 '(:help "Cancel an article you posted"))]
2555 ["Reply" gnus-summary-reply t]
2556 ["Reply and yank" gnus-summary-reply-with-original t]
2557 ["Wide reply" gnus-summary-wide-reply t]
2558 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2559 ,@(if (featurep 'xemacs) '(t)
2560 '(:help "Mail a reply, quoting this article"))]
2561 ["Very wide reply" gnus-summary-very-wide-reply t]
2562 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2563 ,@(if (featurep 'xemacs) '(t)
2564 '(:help "Mail a very wide reply, quoting this article"))]
2565 ["Mail forward" gnus-summary-mail-forward t]
2566 ["Post forward" gnus-summary-post-forward t]
2567 ["Digest and mail" gnus-uu-digest-mail-forward t]
2568 ["Digest and post" gnus-uu-digest-post-forward t]
2569 ["Resend message" gnus-summary-resend-message t]
2570 ["Resend message edit" gnus-summary-resend-message-edit t]
2571 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2572 ["Send a mail" gnus-summary-mail-other-window t]
2573 ["Create a local message" gnus-summary-news-other-window t]
2574 ["Uuencode and post" gnus-uu-post-news
2575 ,@(if (featurep 'xemacs) '(t)
2576 '(:help "Post a uuencoded article"))]
2577 ["Followup via news" gnus-summary-followup-to-mail t]
2578 ["Followup via news and yank"
2579 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2580 ["Strip signature on reply"
2581 (lambda ()
2582 (interactive)
2583 (if (not (memq message-cite-function
2584 '(message-cite-original-without-signature
2585 message-cite-original)))
2586 ;; Stupid workaround for XEmacs not honoring :visible.
2587 (message "Can't toggle this value of `message-cite-function'")
2588 (setq message-cite-function
2589 (if (eq message-cite-function
2590 'message-cite-original-without-signature)
2591 'message-cite-original
2592 'message-cite-original-without-signature))))
2593 ;; XEmacs barfs on :visible.
2594 ,@(if (featurep 'xemacs) nil
2595 '(:visible (memq message-cite-function
2596 '(message-cite-original-without-signature
2597 message-cite-original))))
2598 :style toggle
2599 :selected (eq message-cite-function
2600 'message-cite-original-without-signature)
2601 ,@(if (featurep 'xemacs) nil
2602 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2603 ;;("Draft"
2604 ;;["Send" gnus-summary-send-draft t]
2605 ;;["Send bounced" gnus-resend-bounced-mail t])
2606 ))
2607
2608 (cond
2609 ((not (keymapp gnus-summary-post-menu))
2610 (setq gnus-article-post-menu gnus-summary-post-menu))
2611 ((not gnus-article-post-menu)
2612 ;; Don't share post menu.
2613 (setq gnus-article-post-menu
2614 (copy-keymap gnus-summary-post-menu))))
2615 (define-key gnus-article-mode-map [menu-bar post]
2616 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2617
2618 (easy-menu-define
23f87bed
MB
2619 gnus-summary-misc-menu gnus-summary-mode-map ""
2620 `("Gnus"
2621 ("Mark Read"
2622 ["Mark as read" gnus-summary-mark-as-read-forward t]
2623 ["Mark same subject and select"
2624 gnus-summary-kill-same-subject-and-select t]
2625 ["Mark same subject" gnus-summary-kill-same-subject t]
2626 ["Catchup" gnus-summary-catchup
2627 ,@(if (featurep 'xemacs) '(t)
2628 '(:help "Mark unread articles in this group as read"))]
2629 ["Catchup all" gnus-summary-catchup-all t]
2630 ["Catchup to here" gnus-summary-catchup-to-here t]
2631 ["Catchup from here" gnus-summary-catchup-from-here t]
2632 ["Catchup region" gnus-summary-mark-region-as-read
2633 (gnus-mark-active-p)]
2634 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2635 ("Mark Various"
2636 ["Tick" gnus-summary-tick-article-forward t]
2637 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2638 ["Remove marks" gnus-summary-clear-mark-forward t]
2639 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2640 ["Set bookmark" gnus-summary-set-bookmark t]
2641 ["Remove bookmark" gnus-summary-remove-bookmark t])
2642 ("Limit to"
2643 ["Marks..." gnus-summary-limit-to-marks t]
2644 ["Subject..." gnus-summary-limit-to-subject t]
2645 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2646 ["Recipient..." gnus-summary-limit-to-recipient t]
2647 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2648 ["Age..." gnus-summary-limit-to-age t]
2649 ["Extra..." gnus-summary-limit-to-extra t]
2650 ["Score..." gnus-summary-limit-to-score t]
2651 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2652 ["Unread" gnus-summary-limit-to-unread t]
2653 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2654 ["Singletons" gnus-summary-limit-to-singletons t]
2655 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2656 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2657 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2658 ["Pop limit" gnus-summary-pop-limit t]
2659 ["Show dormant" gnus-summary-limit-include-dormant t]
2660 ["Hide childless dormant"
2661 gnus-summary-limit-exclude-childless-dormant t]
2662 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2663 ["Hide marked" gnus-summary-limit-exclude-marks t]
2664 ["Show expunged" gnus-summary-limit-include-expunged t])
2665 ("Process Mark"
2666 ["Set mark" gnus-summary-mark-as-processable t]
2667 ["Remove mark" gnus-summary-unmark-as-processable t]
2668 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2669 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2670 ["Mark above" gnus-uu-mark-over t]
2671 ["Mark series" gnus-uu-mark-series t]
2672 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2673 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2674 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2675 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2676 ["Mark all" gnus-uu-mark-all t]
2677 ["Mark buffer" gnus-uu-mark-buffer t]
2678 ["Mark sparse" gnus-uu-mark-sparse t]
2679 ["Mark thread" gnus-uu-mark-thread t]
2680 ["Unmark thread" gnus-uu-unmark-thread t]
2681 ("Process Mark Sets"
2682 ["Kill" gnus-summary-kill-process-mark t]
2683 ["Yank" gnus-summary-yank-process-mark
2684 gnus-newsgroup-process-stack]
2685 ["Save" gnus-summary-save-process-mark t]
2686 ["Run command on marked..." gnus-summary-universal-argument t]))
ec7995fa 2687 ("Registry Marks")
23f87bed
MB
2688 ("Scroll article"
2689 ["Page forward" gnus-summary-next-page
2690 ,@(if (featurep 'xemacs) '(t)
2691 '(:help "Show next page of article"))]
2692 ["Page backward" gnus-summary-prev-page
2693 ,@(if (featurep 'xemacs) '(t)
2694 '(:help "Show previous page of article"))]
2695 ["Line forward" gnus-summary-scroll-up t])
2696 ("Move"
2697 ["Next unread article" gnus-summary-next-unread-article t]
2698 ["Previous unread article" gnus-summary-prev-unread-article t]
2699 ["Next article" gnus-summary-next-article t]
2700 ["Previous article" gnus-summary-prev-article t]
2701 ["Next unread subject" gnus-summary-next-unread-subject t]
2702 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2703 ["Next article same subject" gnus-summary-next-same-subject t]
2704 ["Previous article same subject" gnus-summary-prev-same-subject t]
2705 ["First unread article" gnus-summary-first-unread-article t]
2706 ["Best unread article" gnus-summary-best-unread-article t]
2707 ["Go to subject number..." gnus-summary-goto-subject t]
2708 ["Go to article number..." gnus-summary-goto-article t]
2709 ["Go to the last article" gnus-summary-goto-last-article t]
2710 ["Pop article off history" gnus-summary-pop-article t])
2711 ("Sort"
2712 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2713 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2714 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2715 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2716 ["Sort by subject" gnus-summary-sort-by-subject t]
2717 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2718 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2719 ["Sort by score" gnus-summary-sort-by-score t]
2720 ["Sort by lines" gnus-summary-sort-by-lines t]
2721 ["Sort by characters" gnus-summary-sort-by-chars t]
2722 ["Randomize" gnus-summary-sort-by-random t]
2723 ["Original sort" gnus-summary-sort-by-original t])
2724 ("Help"
2725 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2726 ["Describe group" gnus-summary-describe-group t]
2727 ["Fetch charter" gnus-group-fetch-charter
2728 ,@(if (featurep 'xemacs) nil
2729 '(:help "Display the charter of the current group"))]
2730 ["Fetch control message" gnus-group-fetch-control
2731 ,@(if (featurep 'xemacs) nil
2732 '(:help "Display the archived control message for the current group"))]
2733 ["Read manual" gnus-info-find-node t])
2734 ("Modes"
2735 ["Pick and read" gnus-pick-mode t]
2736 ["Binary" gnus-binary-mode t])
2737 ("Regeneration"
2738 ["Regenerate" gnus-summary-prepare t]
2739 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2740 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2741 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2742 ["Toggle threading" gnus-summary-toggle-threads t])
2743 ["See old articles" gnus-summary-insert-old-articles t]
2744 ["See new articles" gnus-summary-insert-new-articles t]
2745 ["Filter articles..." gnus-summary-execute-command t]
2746 ["Run command on articles..." gnus-summary-universal-argument t]
2747 ["Search articles forward..." gnus-summary-search-article-forward t]
2748 ["Search articles backward..." gnus-summary-search-article-backward t]
2749 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2750 ["Expand window" gnus-summary-expand-window t]
2751 ["Expire expirable articles" gnus-summary-expire-articles
2752 (gnus-check-backend-function
2753 'request-expire-articles gnus-newsgroup-name)]
2754 ["Edit local kill file" gnus-summary-edit-local-kill t]
2755 ["Edit main kill file" gnus-summary-edit-global-kill t]
2756 ["Edit group parameters" gnus-summary-edit-parameters t]
2757 ["Customize group parameters" gnus-summary-customize-parameters t]
2758 ["Send a bug report" gnus-bug t]
2759 ("Exit"
2760 ["Catchup and exit" gnus-summary-catchup-and-exit
2761 ,@(if (featurep 'xemacs) '(t)
2762 '(:help "Mark unread articles in this group as read, then exit"))]
2763 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2764 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2765 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2766 ["Exit group" gnus-summary-exit
2767 ,@(if (featurep 'xemacs) '(t)
2768 '(:help "Exit current group, return to group selection mode"))]
2769 ["Exit group without updating" gnus-summary-exit-no-update t]
2770 ["Exit and goto next group" gnus-summary-next-group t]
2771 ["Exit and goto prev group" gnus-summary-prev-group t]
2772 ["Reselect group" gnus-summary-reselect-current-group t]
2773 ["Rescan group" gnus-summary-rescan-group t]
2774 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2775
6748645f 2776 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2777
60bd5589
DL
2778(defvar gnus-summary-tool-bar-map nil)
2779
18c06a99
RS
2780;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2781;; affect _new_ message buffers. We might add a function that walks thru all
2782;; summary-mode buffers and force the update.
2783(defun gnus-summary-tool-bar-update (&optional symbol value)
2784 "Update summary mode toolbar.
2785Setter function for custom variables."
2786 (setq-default gnus-summary-tool-bar-map nil)
2787 (when symbol
2788 ;; When used as ":set" function:
2789 (set-default symbol value))
2790 (when (gnus-buffer-live-p gnus-summary-buffer)
2791 (with-current-buffer gnus-summary-buffer
2792 (gnus-summary-make-tool-bar))))
2793
2794(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2795 'gnus-summary-tool-bar-gnome
2796 'gnus-summary-tool-bar-retro)
2797 "Specifies the Gnus summary tool bar.
2798
2799It can be either a list or a symbol refering to a list. See
2800`gmm-tool-bar-from-list' for the format of the list. The
2801default key map is `gnus-summary-mode-map'.
2802
2803Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2804`gnus-summary-tool-bar-retro'."
2805 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2806 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2807 (repeat :tag "User defined list" gmm-tool-bar-item)
2808 (symbol))
330f707b 2809 :version "23.1" ;; No Gnus
18c06a99
RS
2810 :initialize 'custom-initialize-default
2811 :set 'gnus-summary-tool-bar-update
2812 :group 'gnus-summary)
2813
2814(defcustom gnus-summary-tool-bar-gnome
2815 '((gnus-summary-post-news "mail/compose" nil)
2816 (gnus-summary-insert-new-articles "mail/inbox" nil
2817 :visible (or (not gnus-agent)
2818 gnus-plugged))
2819 (gnus-summary-reply-with-original "mail/reply")
2820 (gnus-summary-reply "mail/reply" nil :visible nil)
2821 (gnus-summary-followup-with-original "mail/reply-all")
2822 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2823 (gnus-summary-mail-forward "mail/forward")
2824 (gnus-summary-save-article "mail/save")
2825 (gnus-summary-search-article-forward "search" nil :visible nil)
2826 (gnus-summary-print-article "print")
2827 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2828 ;; Some new commands that may need more suitable icons:
2829 (gnus-summary-save-newsrc "save" nil :visible nil)
2830 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2831 (gnus-summary-prev-article "left-arrow")
2832 (gnus-summary-next-article "right-arrow")
2833 (gnus-summary-next-page "next-page")
2834 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2835 ;;
2836 ;; Maybe some sort-by-... could be added:
2837 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2838 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2839 (gnus-summary-mark-as-expirable
2840 "delete" nil
2841 :visible (gnus-check-backend-function 'request-expire-articles
2842 gnus-newsgroup-name))
2843 (gnus-summary-mark-as-spam
2844 "mail/spam" t
2845 :visible (and (fboundp 'spam-group-ham-contents-p)
2846 (spam-group-ham-contents-p gnus-newsgroup-name))
2847 :help "Mark as spam")
2848 (gnus-summary-mark-as-read-forward
2849 "mail/not-spam" nil
2850 :visible (and (fboundp 'spam-group-spam-contents-p)
2851 (spam-group-spam-contents-p gnus-newsgroup-name)))
2852 ;;
2853 (gnus-summary-exit "exit")
2854 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2855 (gnus-info-find-node "help"))
2856 "List of functions for the summary tool bar (GNOME style).
2857
2858See `gmm-tool-bar-from-list' for the format of the list."
2859 :type '(repeat gmm-tool-bar-item)
330f707b 2860 :version "23.1" ;; No Gnus
18c06a99
RS
2861 :initialize 'custom-initialize-default
2862 :set 'gnus-summary-tool-bar-update
2863 :group 'gnus-summary)
2864
2865(defcustom gnus-summary-tool-bar-retro
2866 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2867 (gnus-summary-next-unread-article "gnus/next-ur")
2868 (gnus-summary-post-news "gnus/post")
2869 (gnus-summary-followup-with-original "gnus/fuwo")
2870 (gnus-summary-followup "gnus/followup")
2871 (gnus-summary-reply-with-original "gnus/reply-wo")
2872 (gnus-summary-reply "gnus/reply")
2873 (gnus-summary-caesar-message "gnus/rot13")
2874 (gnus-uu-decode-uu "gnus/uu-decode")
2875 (gnus-summary-save-article-file "gnus/save-aif")
2876 (gnus-summary-save-article "gnus/save-art")
2877 (gnus-uu-post-news "gnus/uu-post")
2878 (gnus-summary-catchup "gnus/catchup")
2879 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2880 (gnus-summary-exit "gnus/exit-summ")
2881 ;; Some new command that may need more suitable icons:
2882 (gnus-summary-print-article "gnus/print" nil :visible nil)
2883 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2884 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2885 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2886 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2887 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2888 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2889 ;;
2890 (gnus-info-find-node "gnus/help" nil :visible nil))
2891 "List of functions for the summary tool bar (retro look).
2892
2893See `gmm-tool-bar-from-list' for the format of the list."
2894 :type '(repeat gmm-tool-bar-item)
330f707b 2895 :version "23.1" ;; No Gnus
18c06a99
RS
2896 :initialize 'custom-initialize-default
2897 :set 'gnus-summary-tool-bar-update
2898 :group 'gnus-summary)
2899
2900(defcustom gnus-summary-tool-bar-zap-list t
2901 "List of icon items from the global tool bar.
2902These items are not displayed in the Gnus summary mode tool bar.
2903
2904See `gmm-tool-bar-from-list' for the format of the list."
2905 :type 'gmm-tool-bar-zap-list
330f707b 2906 :version "23.1" ;; No Gnus
18c06a99
RS
2907 :initialize 'custom-initialize-default
2908 :set 'gnus-summary-tool-bar-update
2909 :group 'gnus-summary)
2910
2911(defvar image-load-path)
f654fa04 2912(defvar tool-bar-map)
18c06a99
RS
2913
2914(defun gnus-summary-make-tool-bar (&optional force)
2915 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2916When FORCE, rebuild the tool bar."
2917 (when (and (not (featurep 'xemacs))
2918 (boundp 'tool-bar-mode)
2919 tool-bar-mode
2920 (or (not gnus-summary-tool-bar-map) force))
2921 (let* ((load-path
2922 (gmm-image-load-path-for-library "gnus"
2923 "mail/save.xpm"
2924 nil t))
2925 (image-load-path (cons (car load-path)
2926 (when (boundp 'image-load-path)
2927 image-load-path)))
2928 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2929 gnus-summary-tool-bar-zap-list
2930 'gnus-summary-mode-map)))
2931 (when map
2932 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2933 ;; uses it's value.
2934 (setq gnus-summary-tool-bar-map map))))
2935 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2936
eec82323
LMI
2937(defun gnus-score-set-default (var value)
2938 "A version of set that updates the GNU Emacs menu-bar."
2939 (set var value)
2940 ;; It is the message that forces the active status to be updated.
2941 (message ""))
2942
2943(defun gnus-make-score-map (type)
2944 "Make a summary score map of type TYPE."
2945 (if t
2946 nil
2947 (let ((headers '(("author" "from" string)
2948 ("subject" "subject" string)
2949 ("article body" "body" string)
2950 ("article head" "head" string)
2951 ("xref" "xref" string)
16409b0b 2952 ("extra header" "extra" string)
eec82323
LMI
2953 ("lines" "lines" number)
2954 ("followups to author" "followup" string)))
2955 (types '((number ("less than" <)
2956 ("greater than" >)
2957 ("equal" =))
2958 (string ("substring" s)
2959 ("exact string" e)
2960 ("fuzzy string" f)
2961 ("regexp" r))))
2962 (perms '(("temporary" (current-time-string))
2963 ("permanent" nil)
2964 ("immediate" now)))
2965 header)
2966 (list
2967 (apply
2968 'nconc
2969 (list
2970 (if (eq type 'lower)
2971 "Lower score"
2972 "Increase score"))
2973 (let (outh)
2974 (while headers
2975 (setq header (car headers))
2976 (setq outh
2977 (cons
2978 (apply
2979 'nconc
2980 (list (car header))
2981 (let ((ts (cdr (assoc (nth 2 header) types)))
2982 outt)
2983 (while ts
2984 (setq outt
2985 (cons
2986 (apply
2987 'nconc
2988 (list (caar ts))
2989 (let ((ps perms)
2990 outp)
2991 (while ps
2992 (setq outp
2993 (cons
2994 (vector
2995 (caar ps)
2996 (list
2997 'gnus-summary-score-entry
2998 (nth 1 header)
2999 (if (or (string= (nth 1 header)
3000 "head")
3001 (string= (nth 1 header)
3002 "body"))
3003 ""
3004 (list 'gnus-summary-header
3005 (nth 1 header)))
3006 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3007 (list 'gnus-score-delta-default
3008 nil)
eec82323
LMI
3009 (nth 1 (car ps))
3010 t)
3011 t)
3012 outp))
3013 (setq ps (cdr ps)))
3014 (list (nreverse outp))))
3015 outt))
3016 (setq ts (cdr ts)))
3017 (list (nreverse outt))))
3018 outh))
3019 (setq headers (cdr headers)))
3020 (list (nreverse outh))))))))
3021
704f1663
GM
3022
3023(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
398a825b 3024(defvar bookmark-make-record-function)
eec82323
LMI
3025\f
3026
3027(defun gnus-summary-mode (&optional group)
3028 "Major mode for reading articles.
3029
3030All normal editing commands are switched off.
3031\\<gnus-summary-mode-map>
3032Each line in this buffer represents one article. To read an
3033article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3034and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3035respectively.
3036
3037You can also post articles and send mail from this buffer. To
23f87bed 3038follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3039of an article, type `\\[gnus-summary-reply]'.
3040
3041There are approx. one gazillion commands you can execute in this
3042buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3043
3044The following commands are available:
3045
3046\\{gnus-summary-mode-map}"
3047 (interactive)
eec82323 3048 (kill-all-local-variables)
01c52d31
MB
3049 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3050 (gnus-summary-make-local-variables))
3051 (gnus-summary-make-local-variables)
3052 (setq gnus-newsgroup-name group)
60bd5589
DL
3053 (when (gnus-visual-p 'summary-menu 'menu)
3054 (gnus-summary-make-menu-bar)
3055 (gnus-summary-make-tool-bar))
eec82323
LMI
3056 (gnus-make-thread-indent-array)
3057 (gnus-simplify-mode-line)
3058 (setq major-mode 'gnus-summary-mode)
3059 (setq mode-name "Summary")
eec82323 3060 (use-local-map gnus-summary-mode-map)
16409b0b 3061 (buffer-disable-undo)
01c52d31
MB
3062 (setq buffer-read-only t ;Disable modification
3063 show-trailing-whitespace nil)
eec82323 3064 (setq truncate-lines t)
9bfd9a76 3065 (add-to-invisibility-spec '(gnus-sum . t))
eec82323
LMI
3066 (gnus-summary-set-display-table)
3067 (gnus-set-default-directory)
eec82323
LMI
3068 (make-local-variable 'gnus-summary-line-format)
3069 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3070 (make-local-variable 'gnus-summary-dummy-line-format)
3071 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3072 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3073 (gnus-make-local-hook 'pre-command-hook)
6748645f 3074 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3075 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3076 (turn-on-gnus-mailing-list-mode)
87545352 3077 (mm-enable-multibyte)
45be326a
TV
3078 (set (make-local-variable 'bookmark-make-record-function)
3079 'gnus-summary-bookmark-make-record)
eec82323
LMI
3080 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3081 (gnus-update-summary-mark-positions))
3082
3083(defun gnus-summary-make-local-variables ()
3084 "Make all the local summary buffer variables."
16409b0b
GM
3085 (let (global)
3086 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3087 (if (consp local)
3088 (progn
3089 (if (eq (cdr local) 'global)
3090 ;; Copy the global value of the variable.
3091 (setq global (symbol-value (car local)))
3092 ;; Use the value from the list.
3093 (setq global (eval (cdr local))))
16409b0b 3094 (set (make-local-variable (car local)) global))
eec82323 3095 ;; Simple nil-valued local variable.
16409b0b 3096 (set (make-local-variable local) nil)))))
eec82323
LMI
3097
3098(defun gnus-summary-clear-local-variables ()
3099 (let ((locals gnus-summary-local-variables))
3100 (while locals
3101 (if (consp (car locals))
01c52d31 3102 (and (symbolp (caar locals))
eec82323 3103 (set (caar locals) nil))
01c52d31 3104 (and (symbolp (car locals))
eec82323
LMI
3105 (set (car locals) nil)))
3106 (setq locals (cdr locals)))))
3107
3108;; Summary data functions.
3109
3110(defmacro gnus-data-number (data)
3111 `(car ,data))
3112
3113(defmacro gnus-data-set-number (data number)
3114 `(setcar ,data ,number))
3115
3116(defmacro gnus-data-mark (data)
3117 `(nth 1 ,data))
3118
3119(defmacro gnus-data-set-mark (data mark)
3120 `(setcar (nthcdr 1 ,data) ,mark))
3121
3122(defmacro gnus-data-pos (data)
3123 `(nth 2 ,data))
3124
3125(defmacro gnus-data-set-pos (data pos)
3126 `(setcar (nthcdr 2 ,data) ,pos))
3127
3128(defmacro gnus-data-header (data)
3129 `(nth 3 ,data))
3130
3131(defmacro gnus-data-set-header (data header)
3132 `(setf (nth 3 ,data) ,header))
3133
3134(defmacro gnus-data-level (data)
3135 `(nth 4 ,data))
3136
3137(defmacro gnus-data-unread-p (data)
3138 `(= (nth 1 ,data) gnus-unread-mark))
3139
3140(defmacro gnus-data-read-p (data)
3141 `(/= (nth 1 ,data) gnus-unread-mark))
3142
3143(defmacro gnus-data-pseudo-p (data)
3144 `(consp (nth 3 ,data)))
3145
3146(defmacro gnus-data-find (number)
3147 `(assq ,number gnus-newsgroup-data))
3148
3149(defmacro gnus-data-find-list (number &optional data)
3150 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3151 (memq (assq ,number bdata)
3152 bdata)))
3153
3154(defmacro gnus-data-make (number mark pos header level)
3155 `(list ,number ,mark ,pos ,header ,level))
3156
3157(defun gnus-data-enter (after-article number mark pos header level offset)
3158 (let ((data (gnus-data-find-list after-article)))
3159 (unless data
3160 (error "No such article: %d" after-article))
3161 (setcdr data (cons (gnus-data-make number mark pos header level)
3162 (cdr data)))
3163 (setq gnus-newsgroup-data-reverse nil)
3164 (gnus-data-update-list (cddr data) offset)))
3165
3166(defun gnus-data-enter-list (after-article list &optional offset)
3167 (when list
3168 (let ((data (and after-article (gnus-data-find-list after-article)))
3169 (ilist list))
6748645f
LMI
3170 (if (not (or data
3171 after-article))
3172 (let ((odata gnus-newsgroup-data))
3173 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3174 (when offset
6748645f 3175 (gnus-data-update-list odata offset)))
01c52d31 3176 ;; Find the last element in the list to be spliced into the main
6748645f 3177 ;; list.
01c52d31 3178 (setq list (last list))
6748645f
LMI
3179 (if (not data)
3180 (progn
3181 (setcdr list gnus-newsgroup-data)
3182 (setq gnus-newsgroup-data ilist)
3183 (when offset
3184 (gnus-data-update-list (cdr list) offset)))
3185 (setcdr list (cdr data))
3186 (setcdr data ilist)
3187 (when offset
3188 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3189 (setq gnus-newsgroup-data-reverse nil))))
3190
3191(defun gnus-data-remove (article &optional offset)
3192 (let ((data gnus-newsgroup-data))
3193 (if (= (gnus-data-number (car data)) article)
3194 (progn
3195 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3196 gnus-newsgroup-data-reverse nil)
3197 (when offset
3198 (gnus-data-update-list gnus-newsgroup-data offset)))
3199 (while (cdr data)
3200 (when (= (gnus-data-number (cadr data)) article)
3201 (setcdr data (cddr data))
3202 (when offset
3203 (gnus-data-update-list (cdr data) offset))
3204 (setq data nil
3205 gnus-newsgroup-data-reverse nil))
3206 (setq data (cdr data))))))
3207
3208(defmacro gnus-data-list (backward)
3209 `(if ,backward
3210 (or gnus-newsgroup-data-reverse
3211 (setq gnus-newsgroup-data-reverse
3212 (reverse gnus-newsgroup-data)))
3213 gnus-newsgroup-data))
3214
3215(defun gnus-data-update-list (data offset)
3216 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3217 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3218 (while data
3219 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3220 (setq data (cdr data))))
3221
eec82323
LMI
3222(defun gnus-summary-article-pseudo-p (article)
3223 "Say whether this article is a pseudo article or not."
3224 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3225
3226(defmacro gnus-summary-article-sparse-p (article)
3227 "Say whether this article is a sparse article or not."
a8151ef7 3228 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3229
3230(defmacro gnus-summary-article-ancient-p (article)
3231 "Say whether this article is a sparse article or not."
3232 `(memq ,article gnus-newsgroup-ancient))
3233
3234(defun gnus-article-parent-p (number)
3235 "Say whether this article is a parent or not."
3236 (let ((data (gnus-data-find-list number)))
23f87bed 3237 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3238 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3239 (gnus-data-level (nth 1 data))))))
3240
3241(defun gnus-article-children (number)
3242 "Return a list of all children to NUMBER."
3243 (let* ((data (gnus-data-find-list number))
3244 (level (gnus-data-level (car data)))
3245 children)
3246 (setq data (cdr data))
3247 (while (and data
3248 (= (gnus-data-level (car data)) (1+ level)))
3249 (push (gnus-data-number (car data)) children)
3250 (setq data (cdr data)))
3251 children))
3252
3253(defmacro gnus-summary-skip-intangible ()
3254 "If the current article is intangible, then jump to a different article."
3255 '(let ((to (get-text-property (point) 'gnus-intangible)))
3256 (and to (gnus-summary-goto-subject to))))
3257
3258(defmacro gnus-summary-article-intangible-p ()
3259 "Say whether this article is intangible or not."
3260 '(get-text-property (point) 'gnus-intangible))
3261
3262(defun gnus-article-read-p (article)
3263 "Say whether ARTICLE is read or not."
3264 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3265 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3266 (memq article gnus-newsgroup-unreads)
3267 (memq article gnus-newsgroup-unselected)
3268 (memq article gnus-newsgroup-dormant))))
3269
3270;; Some summary mode macros.
3271
3272(defmacro gnus-summary-article-number ()
3273 "The article number of the article on the current line.
8f688cb0 3274If there isn't an article number here, then we return the current
eec82323
LMI
3275article number."
3276 '(progn
3277 (gnus-summary-skip-intangible)
3278 (or (get-text-property (point) 'gnus-number)
3279 (gnus-summary-last-subject))))
3280
3281(defmacro gnus-summary-article-header (&optional number)
6748645f 3282 "Return the header of article NUMBER."
eec82323
LMI
3283 `(gnus-data-header (gnus-data-find
3284 ,(or number '(gnus-summary-article-number)))))
3285
3286(defmacro gnus-summary-thread-level (&optional number)
6748645f 3287 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3288 `(if (and (eq gnus-summary-make-false-root 'dummy)
3289 (get-text-property (point) 'gnus-intangible))
3290 0
3291 (gnus-data-level (gnus-data-find
3292 ,(or number '(gnus-summary-article-number))))))
3293
3294(defmacro gnus-summary-article-mark (&optional number)
6748645f 3295 "Return the mark of article NUMBER."
eec82323
LMI
3296 `(gnus-data-mark (gnus-data-find
3297 ,(or number '(gnus-summary-article-number)))))
3298
3299(defmacro gnus-summary-article-pos (&optional number)
6748645f 3300 "Return the position of the line of article NUMBER."
eec82323
LMI
3301 `(gnus-data-pos (gnus-data-find
3302 ,(or number '(gnus-summary-article-number)))))
3303
3304(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3305(defmacro gnus-summary-article-subject (&optional number)
3306 "Return current subject string or nil if nothing."
3307 `(let ((headers
3308 ,(if number
3309 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3310 '(gnus-data-header (assq (gnus-summary-article-number)
3311 gnus-newsgroup-data)))))
3312 (and headers
3313 (vectorp headers)
3314 (mail-header-subject headers))))
3315
3316(defmacro gnus-summary-article-score (&optional number)
3317 "Return current article score."
3318 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3319 gnus-newsgroup-scored))
3320 gnus-summary-default-score 0))
3321
3322(defun gnus-summary-article-children (&optional number)
6748645f 3323 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3324 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3325 (level (gnus-data-level (car data)))
3326 l children)
3327 (while (and (setq data (cdr data))
3328 (> (setq l (gnus-data-level (car data))) level))
3329 (and (= (1+ level) l)
3330 (push (gnus-data-number (car data))
3331 children)))
3332 (nreverse children)))
3333
3334(defun gnus-summary-article-parent (&optional number)
6748645f 3335 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3336 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3337 (gnus-data-list t)))
3338 (level (gnus-data-level (car data))))
3339 (if (zerop level)
3340 () ; This is a root.
3341 ;; We search until we find an article with a level less than
3342 ;; this one. That function has to be the parent.
3343 (while (and (setq data (cdr data))
3344 (not (< (gnus-data-level (car data)) level))))
3345 (and data (gnus-data-number (car data))))))
3346
3347(defun gnus-unread-mark-p (mark)
3348 "Say whether MARK is the unread mark."
3349 (= mark gnus-unread-mark))
3350
3351(defun gnus-read-mark-p (mark)
3352 "Say whether MARK is one of the marks that mark as read.
3353This is all marks except unread, ticked, dormant, and expirable."
3354 (not (or (= mark gnus-unread-mark)
3355 (= mark gnus-ticked-mark)
23f87bed 3356 (= mark gnus-spam-mark)
eec82323
LMI
3357 (= mark gnus-dormant-mark)
3358 (= mark gnus-expirable-mark))))
3359
3360(defmacro gnus-article-mark (number)
6748645f
LMI
3361 "Return the MARK of article NUMBER.
3362This macro should only be used when computing the mark the \"first\"
3363time; i.e., when generating the summary lines. After that,
3364`gnus-summary-article-mark' should be used to examine the
3365marks of articles."
eec82323 3366 `(cond
6748645f 3367 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3368 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3369 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3370 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3371 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3372 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3373 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3374 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3375 gnus-ancient-mark))))
3376
3377;; Saving hidden threads.
3378
eec82323
LMI
3379(defmacro gnus-save-hidden-threads (&rest forms)
3380 "Save hidden threads, eval FORMS, and restore the hidden threads."
3381 (let ((config (make-symbol "config")))
3382 `(let ((,config (gnus-hidden-threads-configuration)))
3383 (unwind-protect
3384 (save-excursion
3385 ,@forms)
3386 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3387(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3388(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3389
107ecebb
AS
3390(defun gnus-data-compute-positions ()
3391 "Compute the positions of all articles."
3392 (setq gnus-newsgroup-data-reverse nil)
3393 (let ((data gnus-newsgroup-data))
3394 (save-excursion
3395 (gnus-save-hidden-threads
3396 (gnus-summary-show-all-threads)
3397 (goto-char (point-min))
3398 (while data
3399 (while (get-text-property (point) 'gnus-intangible)
3400 (forward-line 1))
3401 (gnus-data-set-pos (car data) (+ (point) 3))
3402 (setq data (cdr data))
3403 (forward-line 1))))))
3404
16409b0b
GM
3405(defun gnus-hidden-threads-configuration ()
3406 "Return the current hidden threads configuration."
3407 (save-excursion
3408 (let (config)
3409 (goto-char (point-min))
62a83cc8
KY
3410 (while (not (eobp))
3411 (when (eq (get-char-property (point-at-eol) 'invisible) 'gnus-sum)
3412 (push (save-excursion (forward-line 0) (point)) config))
3413 (forward-line 1))
16409b0b
GM
3414 config)))
3415
3416(defun gnus-restore-hidden-threads-configuration (config)
3417 "Restore hidden threads configuration from CONFIG."
3418 (save-excursion
c7a91ce1 3419 (let (point (inhibit-read-only t))
16409b0b 3420 (while (setq point (pop config))
62a83cc8
KY
3421 (goto-char point)
3422 (gnus-summary-hide-thread)))))
16409b0b 3423
eec82323
LMI
3424;; Various summary mode internalish functions.
3425
3426(defun gnus-mouse-pick-article (e)
3427 (interactive "e")
3428 (mouse-set-point e)
3429 (gnus-summary-next-page nil t))
3430
3431(defun gnus-summary-set-display-table ()
16409b0b
GM
3432 "Change the display table.
3433Odd characters have a tendency to mess
3434up nicely formatted displays - we make all possible glyphs
3435display only a single character."
eec82323
LMI
3436
3437 ;; We start from the standard display table, if any.
3438 (let ((table (or (copy-sequence standard-display-table)
3439 (make-display-table)))
3440 (i 32))
3441 ;; Nix out all the control chars...
3442 (while (>= (setq i (1- i)) 0)
2b968687 3443 (gnus-put-display-table i [??] table))
23f87bed 3444 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3445 ;; selective display).
2b968687
MB
3446 (gnus-put-display-table ?\n nil table)
3447 (gnus-put-display-table ?\r nil table)
6748645f 3448 ;; We keep TAB as well.
2b968687 3449 (gnus-put-display-table ?\t nil table)
719120ef 3450 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3451 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3452 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3453 160
3454 256)))
eec82323
LMI
3455 (while (>= (setq i (1- i)) 127)
3456 ;; Only modify if the entry is nil.
2b968687
MB
3457 (unless (gnus-get-display-table i table)
3458 (gnus-put-display-table i [??] table))))
eec82323
LMI
3459 (setq buffer-display-table table)))
3460
23f87bed
MB
3461(defun gnus-summary-set-article-display-arrow (pos)
3462 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3463 (when gnus-summary-display-arrow
3464 (make-local-variable 'overlay-arrow-position)
3465 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3466 (save-excursion
3467 (goto-char pos)
3468 (beginning-of-line)
3469 (unless overlay-arrow-position
3470 (setq overlay-arrow-position (make-marker)))
3471 (setq overlay-arrow-string "=>"
3472 overlay-arrow-position (set-marker overlay-arrow-position
3473 (point)
3474 (current-buffer))))))
3475
eec82323
LMI
3476(defun gnus-summary-setup-buffer (group)
3477 "Initialize summary buffer."
23f87bed
MB
3478 (let ((buffer (gnus-summary-buffer-name group))
3479 (dead-name (concat "*Dead Summary "
3480 (gnus-group-decoded-name group) "*")))
3481 ;; If a dead summary buffer exists, we kill it.
3482 (when (gnus-buffer-live-p dead-name)
3483 (gnus-kill-buffer dead-name))
eec82323
LMI
3484 (if (get-buffer buffer)
3485 (progn
3486 (set-buffer buffer)
3487 (setq gnus-summary-buffer (current-buffer))
3488 (not gnus-newsgroup-prepared))
3489 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3490 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3491 (gnus-summary-mode group)
3492 (when gnus-carpal
3493 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3494 (when (gnus-group-quit-config group)
3495 (set (make-local-variable 'gnus-single-article-buffer) nil))
3496 (make-local-variable 'gnus-article-buffer)
3497 (make-local-variable 'gnus-article-current)
3498 (make-local-variable 'gnus-original-article-buffer)
eec82323 3499 (setq gnus-newsgroup-name group)
23f87bed
MB
3500 ;; Set any local variables in the group parameters.
3501 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3502 t)))
3503
3504(defun gnus-set-global-variables ()
16409b0b
GM
3505 "Set the global equivalents of the buffer-local variables.
3506They are set to the latest values they had. These reflect the summary
3507buffer that was in action when the last article was fetched."
eec82323
LMI
3508 (when (eq major-mode 'gnus-summary-mode)
3509 (setq gnus-summary-buffer (current-buffer))
3510 (let ((name gnus-newsgroup-name)
3511 (marked gnus-newsgroup-marked)
23f87bed 3512 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3513 (unread gnus-newsgroup-unreads)
3514 (headers gnus-current-headers)
3515 (data gnus-newsgroup-data)
3516 (summary gnus-summary-buffer)
3517 (article-buffer gnus-article-buffer)
3518 (original gnus-original-article-buffer)
3519 (gac gnus-article-current)
3520 (reffed gnus-reffed-article-number)
16409b0b 3521 (score-file gnus-current-score-file)
23f87bed
MB
3522 (default-charset gnus-newsgroup-charset)
3523 vlist)
3524 (let ((locals gnus-newsgroup-variables))
3525 (while locals
3526 (if (consp (car locals))
3527 (push (eval (caar locals)) vlist)
3528 (push (eval (car locals)) vlist))
3529 (setq locals (cdr locals)))
3530 (setq vlist (nreverse vlist)))
01c52d31 3531 (with-current-buffer gnus-group-buffer
6748645f
LMI
3532 (setq gnus-newsgroup-name name
3533 gnus-newsgroup-marked marked
23f87bed 3534 gnus-newsgroup-spam-marked spam
6748645f
LMI
3535 gnus-newsgroup-unreads unread
3536 gnus-current-headers headers
3537 gnus-newsgroup-data data
3538 gnus-article-current gac
3539 gnus-summary-buffer summary
3540 gnus-article-buffer article-buffer
3541 gnus-original-article-buffer original
3542 gnus-reffed-article-number reffed
16409b0b
GM
3543 gnus-current-score-file score-file
3544 gnus-newsgroup-charset default-charset)
23f87bed
MB
3545 (let ((locals gnus-newsgroup-variables))
3546 (while locals
3547 (if (consp (car locals))
3548 (set (caar locals) (pop vlist))
3549 (set (car locals) (pop vlist)))
3550 (setq locals (cdr locals))))
eec82323
LMI
3551 ;; The article buffer also has local variables.
3552 (when (gnus-buffer-live-p gnus-article-buffer)
3553 (set-buffer gnus-article-buffer)
3554 (setq gnus-summary-buffer summary))))))
3555
3556(defun gnus-summary-article-unread-p (article)
3557 "Say whether ARTICLE is unread or not."
3558 (memq article gnus-newsgroup-unreads))
3559
3560(defun gnus-summary-first-article-p (&optional article)
3561 "Return whether ARTICLE is the first article in the buffer."
3562 (if (not (setq article (or article (gnus-summary-article-number))))
3563 nil
3564 (eq article (caar gnus-newsgroup-data))))
3565
3566(defun gnus-summary-last-article-p (&optional article)
3567 "Return whether ARTICLE is the last article in the buffer."
3568 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3569 ;; All non-existent numbers are the last article. :-)
3570 t
eec82323
LMI
3571 (not (cdr (gnus-data-find-list article)))))
3572
4921bbdd
CY
3573(defun gnus-make-thread-indent-array (&optional n)
3574 (when (or n
3575 (progn (setq n 200) nil)
3576 (null gnus-thread-indent-array)
3577 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3578 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3579 gnus-thread-indent-array-level gnus-thread-indent-level)
3580 (while (>= n 0)
3581 (aset gnus-thread-indent-array n
6a30c01d 3582 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3583 (setq n (1- n)))))
eec82323
LMI
3584
3585(defun gnus-update-summary-mark-positions ()
3586 "Compute where the summary marks are to go."
3587 (save-excursion
6748645f 3588 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3589 (set-buffer gnus-summary-buffer))
5153a47a
MB
3590 (let ((spec gnus-summary-line-format-spec)
3591 pos)
eec82323
LMI
3592 (save-excursion
3593 (gnus-set-work-buffer)
5153a47a
MB
3594 (let ((gnus-tmp-unread ?Z)
3595 (gnus-replied-mark ?Z)
3596 (gnus-score-below-mark ?Z)
3597 (gnus-score-over-mark ?Z)
3598 (gnus-undownloaded-mark ?Z)
3599 (gnus-summary-line-format-spec spec)
54506618 3600 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3601 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3602 case-fold-search ignores)
3603 ;; Here, all marks are bound to Z.
3604 (gnus-summary-insert-line header
3605 0 nil t gnus-tmp-unread t nil "" nil 1)
3606 (goto-char (point-min))
3607 ;; Memorize the positions of the same characters as dummy marks.
3608 (while (re-search-forward "[A-D]" nil t)
3609 (push (point) ignores))
54506618 3610 (erase-buffer)
5153a47a
MB
3611 ;; We use A-D as dummy marks in order to know column positions
3612 ;; where marks should be inserted.
3613 (setq gnus-tmp-unread ?A
3614 gnus-replied-mark ?B
3615 gnus-score-below-mark ?C
3616 gnus-score-over-mark ?C
3617 gnus-undownloaded-mark ?D)
3618 (gnus-summary-insert-line header
3619 0 nil t gnus-tmp-unread t nil "" nil 1)
3620 ;; Ignore characters which aren't dummy marks.
3621 (dolist (p ignores)
3622 (delete-region (goto-char (1- p)) p)
3623 (insert ?Z))
eec82323 3624 (goto-char (point-min))
7c3bb5a5 3625 (setq pos (list (cons 'unread
5153a47a 3626 (and (search-forward "A" nil t)
7c3bb5a5 3627 (- (point) (point-min) 1)))))
eec82323 3628 (goto-char (point-min))
5153a47a 3629 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3630 (- (point) (point-min) 1)))
eec82323
LMI
3631 pos)
3632 (goto-char (point-min))
5153a47a 3633 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3634 (- (point) (point-min) 1)))
6748645f
LMI
3635 pos)
3636 (goto-char (point-min))
5153a47a 3637 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3638 (- (point) (point-min) 1)))
eec82323
LMI
3639 pos)))
3640 (setq gnus-summary-mark-positions pos))))
3641
3642(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3643 "Insert a dummy root in the summary buffer."
3644 (beginning-of-line)
3645 (gnus-add-text-properties
3646 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3647 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3648
23f87bed
MB
3649(defun gnus-summary-extract-address-component (from)
3650 (or (car (funcall gnus-extract-address-components from))
3651 from))
3652
3653(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3654 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3655 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3656 ; Is it really necessary to do this next part for each summary line?
3657 ; Luckily, doesn't seem to slow things down much.
16409b0b 3658 (mail-parse-ignored-charsets
01c52d31
MB
3659 (with-current-buffer gnus-summary-buffer
3660 gnus-newsgroup-ignored-charsets)))
23f87bed 3661 (or
01c52d31
MB
3662 (and ignored-from-addresses
3663 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3664 (let ((extra-headers (mail-header-extra header))
3665 to
3666 newsgroups)
3667 (cond
3668 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3669 (concat gnus-summary-to-prefix
23f87bed
MB
3670 (inline
3671 (gnus-summary-extract-address-component
343d6628 3672 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3673 ((setq newsgroups
3674 (or
3675 (cdr (assq 'Newsgroups extra-headers))
3676 (and
3677 (memq 'Newsgroups gnus-extra-headers)
3678 (eq (car (gnus-find-method-for-group
3679 gnus-newsgroup-name)) 'nntp)
3680 (gnus-group-real-name gnus-newsgroup-name))))
3681 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3682 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3683
eec82323
LMI
3684(defun gnus-summary-insert-line (gnus-tmp-header
3685 gnus-tmp-level gnus-tmp-current
23f87bed 3686 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3687 gnus-tmp-expirable gnus-tmp-subject-or-nil
3688 &optional gnus-tmp-dummy gnus-tmp-score
3689 gnus-tmp-process)
4921bbdd
CY
3690 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3691 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3692 gnus-tmp-level)))
eec82323
LMI
3693 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3694 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3695 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3696 (gnus-tmp-score-char
3697 (if (or (null gnus-summary-default-score)
3698 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3699 gnus-summary-zcore-fuzz))
23f87bed 3700 ? ;Whitespace
eec82323
LMI
3701 (if (< gnus-tmp-score gnus-summary-default-score)
3702 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3703 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3704 (gnus-tmp-replied
3705 (cond (gnus-tmp-process gnus-process-mark)
3706 ((memq gnus-tmp-current gnus-newsgroup-cached)
3707 gnus-cached-mark)
3708 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3709 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3710 gnus-forwarded-mark)
eec82323
LMI
3711 ((memq gnus-tmp-current gnus-newsgroup-saved)
3712 gnus-saved-mark)
23f87bed
MB
3713 ((memq gnus-tmp-number gnus-newsgroup-recent)
3714 gnus-recent-mark)
3715 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3716 gnus-unseen-mark)
3717 (t gnus-no-mark)))
3718 (gnus-tmp-downloaded
3719 (cond (undownloaded
3720 gnus-undownloaded-mark)
3721 (gnus-newsgroup-agentized
3722 gnus-downloaded-mark)
3723 (t
3724 gnus-no-mark)))
eec82323
LMI
3725 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3726 (gnus-tmp-name
3727 (cond
3728 ((string-match "<[^>]+> *$" gnus-tmp-from)
3729 (let ((beg (match-beginning 0)))
23f87bed
MB
3730 (or (and (string-match "^\".+\"" gnus-tmp-from)
3731 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3732 (substring gnus-tmp-from 0 beg))))
3733 ((string-match "(.+)" gnus-tmp-from)
3734 (substring gnus-tmp-from
3735 (1+ (match-beginning 0)) (1- (match-end 0))))
3736 (t gnus-tmp-from)))
3737 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3738 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3739 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3740 (inhibit-read-only t))
eec82323
LMI
3741 (when (string= gnus-tmp-name "")
3742 (setq gnus-tmp-name gnus-tmp-from))
3743 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3744 (setq gnus-tmp-lines -1))
3745 (if (= gnus-tmp-lines -1)
3746 (setq gnus-tmp-lines "?")
3747 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3748 (condition-case ()
3749 (gnus-put-text-property
3750 (point)
3751 (progn (eval gnus-summary-line-format-spec) (point))
3752 'gnus-number gnus-tmp-number)
3753 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3754 (when (gnus-visual-p 'summary-highlight 'highlight)
3755 (forward-line -1)
6748645f 3756 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3757 (forward-line 1))))
3758
3759(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3760 "Update summary line after change."
eec82323
LMI
3761 (when (and gnus-summary-default-score
3762 (not gnus-summary-inhibit-highlight))
3763 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3764 (article (gnus-summary-article-number))
3765 (score (gnus-summary-article-score article)))
3766 (unless dont-update
3767 (if (and gnus-summary-mark-below
3768 (< (gnus-summary-article-score)
3769 gnus-summary-mark-below))
3770 ;; This article has a low score, so we mark it as read.
3771 (when (memq article gnus-newsgroup-unreads)
3772 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3773 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3774 ;; This article was previously marked as read on account
3775 ;; of a low score, but now it has risen, so we mark it as
3776 ;; unread.
3777 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3778 (gnus-summary-update-mark
3779 (if (or (null gnus-summary-default-score)
3780 (<= (abs (- score gnus-summary-default-score))
3781 gnus-summary-zcore-fuzz))
23f87bed 3782 ? ;Whitespace
eec82323
LMI
3783 (if (< score gnus-summary-default-score)
3784 gnus-score-below-mark gnus-score-over-mark))
3785 'score))
3786 ;; Do visual highlighting.
3787 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3788 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3789
3790(defvar gnus-tmp-new-adopts nil)
3791
3792(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3793 "Return the number of articles in THREAD.
3794This may be 0 in some cases -- if none of the articles in
3795the thread are to be displayed."
3796 (let* ((number
23f87bed 3797 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3798 (cond
3799 ((not (listp thread))
3800 1)
3801 ((and (consp thread) (cdr thread))
3802 (apply
3803 '+ 1 (mapcar
3804 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3805 ((null thread)
3806 1)
3807 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3808 1)
3809 (t 0))))
3810 (when (and level (zerop level) gnus-tmp-new-adopts)
3811 (incf number
3812 (apply '+ (mapcar
3813 'gnus-summary-number-of-articles-in-thread
3814 gnus-tmp-new-adopts))))
3815 (if char
3816 (if (> number 1) gnus-not-empty-thread-mark
3817 gnus-empty-thread-mark)
3818 number)))
3819
23f87bed
MB
3820(defsubst gnus-summary-line-message-size (head)
3821 "Return pretty-printed version of message size.
3822This function is intended to be used in
3823`gnus-summary-line-format-alist'."
3824 (let ((c (or (mail-header-chars head) -1)))
3825 (cond ((< c 0) "n/a") ; chars not available
3826 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3827 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3828 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3829 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3830
3831
eec82323
LMI
3832(defun gnus-summary-set-local-parameters (group)
3833 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3834 (let ((vars '(quit-config))) ; Ignore quit-config.
3835 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3836 (and (consp elem) ; Has to be a cons.
3837 (consp (cdr elem)) ; The cdr has to be a list.
3838 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3839 (not (memq (car elem) vars))
e3e955fe 3840 (ignore-errors
23f87bed 3841 (push (car elem) vars)
e3e955fe
MB
3842 ;; Variables like `gnus-show-threads' that are globally
3843 ;; bound, if used as group parameters, need to get to be
3844 ;; buffer-local, whereas just parameters like `gcc-self',
3845 ;; `timestamp', etc. should not be bound as variables.
3846 (if (boundp (car elem))
3847 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3848 (eval (nth 1 elem))))))))
eec82323
LMI
3849
3850(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3851 kill-buffer no-display backward
3852 select-articles)
eec82323
LMI
3853 "Start reading news in newsgroup GROUP.
3854If SHOW-ALL is non-nil, already read articles are also listed.
3855If NO-ARTICLE is non-nil, no article is selected initially.
3856If NO-DISPLAY, don't generate a summary buffer."
3857 (let (result)
3858 (while (and group
3859 (null (setq result
3860 (let ((gnus-auto-select-next nil))
6748645f
LMI
3861 (or (gnus-summary-read-group-1
3862 group show-all no-article
3863 kill-buffer no-display
3864 select-articles)
3865 (setq show-all nil
16409b0b 3866 select-articles nil)))))
eec82323
LMI
3867 (eq gnus-auto-select-next 'quietly))
3868 (set-buffer gnus-group-buffer)
6748645f
LMI
3869 ;; The entry function called above goes to the next
3870 ;; group automatically, so we go two groups back
3871 ;; if we are searching for the previous group.
3872 (when backward
3873 (gnus-group-prev-unread-group 2))
eec82323
LMI
3874 (if (not (equal group (gnus-group-group-name)))
3875 (setq group (gnus-group-group-name))
3876 (setq group nil)))
3877 result))
3878
3879(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3880 kill-buffer no-display
3881 &optional select-articles)
eec82323 3882 ;; Killed foreign groups can't be entered.
23f87bed
MB
3883 ;; (when (and (not (gnus-group-native-p group))
3884 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3885 ;; (error "Dead non-native groups can't be entered"))
3886 (gnus-message 5 "Retrieving newsgroup: %s..."
3887 (gnus-group-decoded-name group))
eec82323
LMI
3888 (let* ((new-group (gnus-summary-setup-buffer group))
3889 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3890 (did-select (and new-group (gnus-select-newsgroup
3891 group show-all select-articles))))
eec82323
LMI
3892 (cond
3893 ;; This summary buffer exists already, so we just select it.
3894 ((not new-group)
3895 (gnus-set-global-variables)
3896 (when kill-buffer
3897 (gnus-kill-or-deaden-summary kill-buffer))
3898 (gnus-configure-windows 'summary 'force)
3899 (gnus-set-mode-line 'summary)
3900 (gnus-summary-position-point)
3901 (message "")
3902 t)
3903 ;; We couldn't select this group.
3904 ((null did-select)
3905 (when (and (eq major-mode 'gnus-summary-mode)
3906 (not (equal (current-buffer) kill-buffer)))
3907 (kill-buffer (current-buffer))
3908 (if (not quit-config)
3909 (progn
6748645f
LMI
3910 ;; Update the info -- marks might need to be removed,
3911 ;; for instance.
3912 (gnus-summary-update-info)
eec82323
LMI
3913 (set-buffer gnus-group-buffer)
3914 (gnus-group-jump-to-group group)
3915 (gnus-group-next-unread-group 1))
3916 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3917 (let ((grpinfo (gnus-get-info group)))
3918 (if (null (gnus-info-read grpinfo))
3919 (gnus-message 3 "Group %s contains no messages"
3920 (gnus-group-decoded-name group))
3921 (gnus-message 3 "Can't select group")))
eec82323
LMI
3922 nil)
3923 ;; The user did a `C-g' while prompting for number of articles,
3924 ;; so we exit this group.
3925 ((eq did-select 'quit)
3926 (and (eq major-mode 'gnus-summary-mode)
3927 (not (equal (current-buffer) kill-buffer))
3928 (kill-buffer (current-buffer)))
3929 (when kill-buffer
3930 (gnus-kill-or-deaden-summary kill-buffer))
3931 (if (not quit-config)
3932 (progn
3933 (set-buffer gnus-group-buffer)
3934 (gnus-group-jump-to-group group)
eec82323
LMI
3935 (gnus-configure-windows 'group 'force))
3936 (gnus-handle-ephemeral-exit quit-config))
3937 ;; Finally signal the quit.
3938 (signal 'quit nil))
3939 ;; The group was successfully selected.
3940 (t
3941 (gnus-set-global-variables)
3942 ;; Save the active value in effect when the group was entered.
3943 (setq gnus-newsgroup-active
3944 (gnus-copy-sequence
3945 (gnus-active gnus-newsgroup-name)))
3946 ;; You can change the summary buffer in some way with this hook.
6748645f 3947 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3948 (when (memq 'summary (gnus-update-format-specifications
3949 nil 'summary 'summary-mode 'summary-dummy))
3950 ;; The format specification for the summary line was updated,
3951 ;; so we need to update the mark positions as well.
3952 (gnus-update-summary-mark-positions))
eec82323
LMI
3953 ;; Do score processing.
3954 (when gnus-use-scoring
3955 (gnus-possibly-score-headers))
3956 ;; Check whether to fill in the gaps in the threads.
3957 (when gnus-build-sparse-threads
3958 (gnus-build-sparse-threads))
3959 ;; Find the initial limit.
26c9afc3
MB
3960 (if show-all
3961 (let ((gnus-newsgroup-dormant nil))
eec82323 3962 (gnus-summary-initial-limit show-all))
26c9afc3 3963 (gnus-summary-initial-limit show-all))
eec82323
LMI
3964 ;; Generate the summary buffer.
3965 (unless no-display
3966 (gnus-summary-prepare))
3967 (when gnus-use-trees
3968 (gnus-tree-open group)
3969 (setq gnus-summary-highlight-line-function
3970 'gnus-tree-highlight-article))
3971 ;; If the summary buffer is empty, but there are some low-scored
3972 ;; articles or some excluded dormants, we include these in the
3973 ;; buffer.
3974 (when (and (zerop (buffer-size))
3975 (not no-display))
3976 (cond (gnus-newsgroup-dormant
3977 (gnus-summary-limit-include-dormant))
3978 ((and gnus-newsgroup-scored show-all)
3979 (gnus-summary-limit-include-expunged t))))
3980 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3981 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3982 (if (and (zerop (buffer-size))
3983 (not no-display))
3984 (progn
3985 ;; This newsgroup is empty.
3986 (gnus-summary-catchup-and-exit nil t)
3987 (gnus-message 6 "No unread news")
3988 (when kill-buffer
3989 (gnus-kill-or-deaden-summary kill-buffer))
3990 ;; Return nil from this function.
3991 nil)
3992 ;; Hide conversation thread subtrees. We cannot do this in
3993 ;; gnus-summary-prepare-hook since kill processing may not
3994 ;; work with hidden articles.
23f87bed 3995 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3996 (when kill-buffer
3997 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3998 (gnus-summary-auto-select-subject)
eec82323
LMI
3999 ;; Show first unread article if requested.
4000 (if (and (not no-article)
4001 (not no-display)
4002 gnus-newsgroup-unreads
4003 gnus-auto-select-first)
16409b0b
GM
4004 (progn
4005 (gnus-configure-windows 'summary)
23f87bed
MB
4006 (let ((art (gnus-summary-article-number)))
4007 (unless (and (not gnus-plugged)
4008 (or (memq art gnus-newsgroup-undownloaded)
4009 (memq art gnus-newsgroup-downloadable)))
4010 (gnus-summary-goto-article art))))
4011 ;; Don't select any articles.
eec82323 4012 (gnus-summary-position-point)
6748645f
LMI
4013 (gnus-configure-windows 'summary 'force)
4014 (gnus-set-mode-line 'summary))
23f87bed
MB
4015 (when (and gnus-auto-center-group
4016 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4017 ;; Gotta use windows, because recenter does weird stuff if
4018 ;; the current buffer ain't the displayed window.
4019 (let ((owin (selected-window)))
4020 (select-window (get-buffer-window gnus-group-buffer t))
4021 (when (gnus-group-goto-group group)
4022 (recenter))
4023 (select-window owin)))
4024 ;; Mark this buffer as "prepared".
4025 (setq gnus-newsgroup-prepared t)
6748645f 4026 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4027 (unless (gnus-ephemeral-group-p group)
4028 (gnus-group-update-group group))
eec82323
LMI
4029 t)))))
4030
23f87bed
MB
4031(defun gnus-summary-auto-select-subject ()
4032 "Select the subject line on initial group entry."
4033 (goto-char (point-min))
4034 (cond
4035 ((eq gnus-auto-select-subject 'best)
4036 (gnus-summary-best-unread-subject))
4037 ((eq gnus-auto-select-subject 'unread)
4038 (gnus-summary-first-unread-subject))
4039 ((eq gnus-auto-select-subject 'unseen)
4040 (gnus-summary-first-unseen-subject))
4041 ((eq gnus-auto-select-subject 'unseen-or-unread)
4042 (gnus-summary-first-unseen-or-unread-subject))
4043 ((eq gnus-auto-select-subject 'first)
4044 ;; Do nothing.
4045 )
4046 ((functionp gnus-auto-select-subject)
4047 (funcall gnus-auto-select-subject))))
4048
eec82323
LMI
4049(defun gnus-summary-prepare ()
4050 "Generate the summary buffer."
4051 (interactive)
c7a91ce1 4052 (let ((inhibit-read-only t))
eec82323
LMI
4053 (erase-buffer)
4054 (setq gnus-newsgroup-data nil
4055 gnus-newsgroup-data-reverse nil)
6748645f 4056 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4057 ;; Generate the buffer, either with threads or without.
4058 (when gnus-newsgroup-headers
4059 (gnus-summary-prepare-threads
4060 (if gnus-show-threads
4061 (gnus-sort-gathered-threads
4062 (funcall gnus-summary-thread-gathering-function
4063 (gnus-sort-threads
4064 (gnus-cut-threads (gnus-make-threads)))))
4065 ;; Unthreaded display.
4066 (gnus-sort-articles gnus-newsgroup-headers))))
4067 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4068 ;; Call hooks for modifying summary buffer.
4069 (goto-char (point-min))
6748645f 4070 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4071
4072(defsubst gnus-general-simplify-subject (subject)
23f87bed 4073 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4074 (setq subject
4075 (cond
4076 ;; Truncate the subject.
6748645f
LMI
4077 (gnus-simplify-subject-functions
4078 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4079 ((numberp gnus-summary-gather-subject-limit)
4080 (setq subject (gnus-simplify-subject-re subject))
4081 (if (> (length subject) gnus-summary-gather-subject-limit)
4082 (substring subject 0 gnus-summary-gather-subject-limit)
4083 subject))
4084 ;; Fuzzily simplify it.
4085 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4086 (gnus-simplify-subject-fuzzy subject))
4087 ;; Just remove the leading "Re:".
4088 (t
4089 (gnus-simplify-subject-re subject))))
4090
4091 (if (and gnus-summary-gather-exclude-subject
4092 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4093 nil ; This article shouldn't be gathered
eec82323
LMI
4094 subject))
4095
4096(defun gnus-summary-simplify-subject-query ()
4097 "Query where the respool algorithm would put this article."
4098 (interactive)
eec82323 4099 (gnus-summary-select-article)
274f1353 4100 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4101
4102(defun gnus-gather-threads-by-subject (threads)
4103 "Gather threads by looking at Subject headers."
4104 (if (not gnus-summary-make-false-root)
4105 threads
4106 (let ((hashtb (gnus-make-hashtable 1024))
4107 (prev threads)
4108 (result threads)
4109 subject hthread whole-subject)
4110 (while threads
4111 (setq subject (gnus-general-simplify-subject
4112 (setq whole-subject (mail-header-subject
4113 (caar threads)))))
4114 (when subject
4115 (if (setq hthread (gnus-gethash subject hashtb))
4116 (progn
4117 ;; We enter a dummy root into the thread, if we
4118 ;; haven't done that already.
4119 (unless (stringp (caar hthread))
4120 (setcar hthread (list whole-subject (car hthread))))
4121 ;; We add this new gathered thread to this gathered
4122 ;; thread.
4123 (setcdr (car hthread)
4124 (nconc (cdar hthread) (list (car threads))))
4125 ;; Remove it from the list of threads.
4126 (setcdr prev (cdr threads))
4127 (setq threads prev))
4128 ;; Enter this thread into the hash table.
23f87bed
MB
4129 (gnus-sethash subject
4130 (if gnus-summary-make-false-root-always
4131 (progn
4132 ;; If you want a dummy root above all
4133 ;; threads...
4134 (setcar threads (list whole-subject
4135 (car threads)))
4136 threads)
4137 threads)
4138 hashtb)))
eec82323
LMI
4139 (setq prev threads)
4140 (setq threads (cdr threads)))
4141 result)))
4142
4143(defun gnus-gather-threads-by-references (threads)
4144 "Gather threads by looking at References headers."
4145 (let ((idhashtb (gnus-make-hashtable 1024))
4146 (thhashtb (gnus-make-hashtable 1024))
4147 (prev threads)
4148 (result threads)
4149 ids references id gthread gid entered ref)
4150 (while threads
4151 (when (setq references (mail-header-references (caar threads)))
4152 (setq id (mail-header-id (caar threads))
23f87bed 4153 ids (inline (gnus-split-references references))
eec82323
LMI
4154 entered nil)
4155 (while (setq ref (pop ids))
4156 (setq ids (delete ref ids))
4157 (if (not (setq gid (gnus-gethash ref idhashtb)))
4158 (progn
4159 (gnus-sethash ref id idhashtb)
4160 (gnus-sethash id threads thhashtb))
4161 (setq gthread (gnus-gethash gid thhashtb))
4162 (unless entered
4163 ;; We enter a dummy root into the thread, if we
4164 ;; haven't done that already.
4165 (unless (stringp (caar gthread))
4166 (setcar gthread (list (mail-header-subject (caar gthread))
4167 (car gthread))))
4168 ;; We add this new gathered thread to this gathered
4169 ;; thread.
4170 (setcdr (car gthread)
4171 (nconc (cdar gthread) (list (car threads)))))
4172 ;; Add it into the thread hash table.
4173 (gnus-sethash id gthread thhashtb)
4174 (setq entered t)
4175 ;; Remove it from the list of threads.
4176 (setcdr prev (cdr threads))
4177 (setq threads prev))))
4178 (setq prev threads)
4179 (setq threads (cdr threads)))
4180 result))
4181
4182(defun gnus-sort-gathered-threads (threads)
16409b0b 4183 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4184 (let ((result threads))
4185 (while threads
4186 (when (stringp (caar threads))
4187 (setcdr (car threads)
16409b0b 4188 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4189 (setq threads (cdr threads)))
4190 result))
4191
4192(defun gnus-thread-loop-p (root thread)
4193 "Say whether ROOT is in THREAD."
4194 (let ((stack (list thread))
4195 (infloop 0)
4196 th)
4197 (while (setq thread (pop stack))
4198 (setq th (cdr thread))
4199 (while (and th
4200 (not (eq (caar th) root)))
4201 (pop th))
4202 (if th
4203 ;; We have found a loop.
4204 (let (ref-dep)
4205 (setcdr thread (delq (car th) (cdr thread)))
4206 (if (boundp (setq ref-dep (intern "none"
4207 gnus-newsgroup-dependencies)))
4208 (setcdr (symbol-value ref-dep)
4209 (nconc (cdr (symbol-value ref-dep))
4210 (list (car th))))
4211 (set ref-dep (list nil (car th))))
4212 (setq infloop 1
4213 stack nil))
4214 ;; Push all the subthreads onto the stack.
4215 (push (cdr thread) stack)))
4216 infloop))
4217
4218(defun gnus-make-threads ()
01ccbb85 4219 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4220 (let (threads)
4221 (while (catch 'infloop
4222 (mapatoms
4223 (lambda (refs)
4224 ;; Deal with self-referencing References loops.
4225 (when (and (car (symbol-value refs))
4226 (not (zerop
4227 (apply
4228 '+
4229 (mapcar
4230 (lambda (thread)
4231 (gnus-thread-loop-p
4232 (car (symbol-value refs)) thread))
4233 (cdr (symbol-value refs)))))))
4234 (setq threads nil)
4235 (throw 'infloop t))
4236 (unless (car (symbol-value refs))
23f87bed
MB
4237 ;; These threads do not refer back to any other
4238 ;; articles, so they're roots.
eec82323
LMI
4239 (setq threads (append (cdr (symbol-value refs)) threads))))
4240 gnus-newsgroup-dependencies)))
4241 threads))
4242
6748645f 4243;; Build the thread tree.
16409b0b 4244(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4245 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4246
4247If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4248if it was already present.
4249
4250If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4251will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4252Message-IDs will be renamed to a unique Message-ID before being
4253entered.
6748645f
LMI
4254
4255Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4256 (let* ((id (mail-header-id header))
4257 (id-dep (and id (intern id dependencies)))
23f87bed 4258 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4259 ;; Enter this `header' in the `dependencies' table.
4260 (cond
4261 ((not id-dep)
4262 (setq header nil))
4263 ;; The first two cases do the normal part: enter a new `header'
4264 ;; in the `dependencies' table.
4265 ((not (boundp id-dep))
4266 (set id-dep (list header)))
4267 ((null (car (symbol-value id-dep)))
4268 (setcar (symbol-value id-dep) header))
4269
4270 ;; From here the `header' was already present in the
4271 ;; `dependencies' table.
4272 (force-new
4273 ;; Overrides an existing entry;
4274 ;; just set the header part of the entry.
23f87bed
MB
4275 (setcar (symbol-value id-dep) header)
4276 (setq replaced t))
6748645f
LMI
4277
4278 ;; Renames the existing `header' to a unique Message-ID.
4279 ((not gnus-summary-ignore-duplicates)
4280 ;; An article with this Message-ID has already been seen.
4281 ;; We rename the Message-ID.
4282 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4283 (list header))
4284 (mail-header-set-id header id))
4285
4286 ;; The last case ignores an existing entry, except it adds any
4287 ;; additional Xrefs (in case the two articles came from different
4288 ;; servers.
4289 ;; Also sets `header' to `nil' meaning that the `dependencies'
4290 ;; table was *not* modified.
4291 (t
4292 (mail-header-set-xref
4293 (car (symbol-value id-dep))
4294 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4295 "")
4296 (or (mail-header-xref header) "")))
4297 (setq header nil)))
4298
23f87bed
MB
4299 (when (and header (not replaced))
4300 ;; First check that we are not creating a References loop.
4301 (setq parent-id (gnus-parent-id (mail-header-references header)))
4302 (setq ref parent-id)
6748645f
LMI
4303 (while (and ref
4304 (setq ref-dep (intern-soft ref dependencies))
4305 (boundp ref-dep)
4306 (setq ref-header (car (symbol-value ref-dep))))
4307 (if (string= id ref)
4308 ;; Yuk! This is a reference loop. Make the article be a
4309 ;; root article.
4310 (progn
4311 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4312 (setq ref nil)
4313 (setq parent-id nil))
6748645f 4314 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4315 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4316 (if (boundp ref-dep)
4317 (setcdr (symbol-value ref-dep)
4318 (nconc (cdr (symbol-value ref-dep))
4319 (list (symbol-value id-dep))))
4320 (set ref-dep (list nil (symbol-value id-dep)))))
4321 header))
4322
23f87bed
MB
4323(defun gnus-extract-message-id-from-in-reply-to (string)
4324 (if (string-match "<[^>]+>" string)
4325 (substring string (match-beginning 0) (match-end 0))
4326 nil))
4327
eec82323
LMI
4328(defun gnus-build-sparse-threads ()
4329 (let ((headers gnus-newsgroup-headers)
16409b0b 4330 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4331 (gnus-summary-ignore-duplicates t)
eec82323 4332 header references generation relations
6748645f 4333 subject child end new-child date)
eec82323
LMI
4334 ;; First we create an alist of generations/relations, where
4335 ;; generations is how much we trust the relation, and the relation
4336 ;; is parent/child.
4337 (gnus-message 7 "Making sparse threads...")
4338 (save-excursion
4339 (nnheader-set-temp-buffer " *gnus sparse threads*")
4340 (while (setq header (pop headers))
4341 (when (and (setq references (mail-header-references header))
4342 (not (string= references "")))
4343 (insert references)
4344 (setq child (mail-header-id header)
6748645f
LMI
4345 subject (mail-header-subject header)
4346 date (mail-header-date header)
4347 generation 0)
eec82323
LMI
4348 (while (search-backward ">" nil t)
4349 (setq end (1+ (point)))
4350 (when (search-backward "<" nil t)
6748645f 4351 (setq new-child (buffer-substring (point) end))
eec82323 4352 (push (list (incf generation)
6748645f
LMI
4353 child (setq child new-child)
4354 subject date)
eec82323 4355 relations)))
6748645f
LMI
4356 (when child
4357 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4358 (erase-buffer)))
4359 (kill-buffer (current-buffer)))
4360 ;; Sort over trustworthiness.
01c52d31
MB
4361 (dolist (relation (sort relations 'car-less-than-car))
4362 (when (gnus-dependencies-add-header
4363 (make-full-mail-header
4364 gnus-reffed-article-number
4365 (nth 3 relation) "" (or (nth 4 relation) "")
4366 (nth 1 relation)
4367 (or (nth 2 relation) "") 0 0 "")
4368 gnus-newsgroup-dependencies nil)
4369 (push gnus-reffed-article-number gnus-newsgroup-limit)
4370 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4371 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4372 gnus-newsgroup-reads)
4373 (decf gnus-reffed-article-number)))
eec82323
LMI
4374 (gnus-message 7 "Making sparse threads...done")))
4375
4376(defun gnus-build-old-threads ()
4377 ;; Look at all the articles that refer back to old articles, and
4378 ;; fetch the headers for the articles that aren't there. This will
4379 ;; build complete threads - if the roots haven't been expired by the
4380 ;; server, that is.
16409b0b
GM
4381 (let ((mail-parse-charset gnus-newsgroup-charset)
4382 id heads)
eec82323
LMI
4383 (mapatoms
4384 (lambda (refs)
4385 (when (not (car (symbol-value refs)))
4386 (setq heads (cdr (symbol-value refs)))
4387 (while heads
4388 (if (memq (mail-header-number (caar heads))
4389 gnus-newsgroup-dormant)
4390 (setq heads (cdr heads))
4391 (setq id (symbol-name refs))
4392 (while (and (setq id (gnus-build-get-header id))
6748645f 4393 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4394 (setq heads nil)))))
4395 gnus-newsgroup-dependencies)))
4396
23f87bed
MB
4397(defsubst gnus-remove-odd-characters (string)
4398 "Translate STRING into something that doesn't contain weird characters."
4399 (mm-subst-char-in-string
4400 ?\r ?\-
01c52d31 4401 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4402
6748645f
LMI
4403;; This function has to be called with point after the article number
4404;; on the beginning of the line.
4405(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4406 (let ((eol (point-at-eol))
6748645f 4407 (buffer (current-buffer))
23f87bed 4408 header references in-reply-to)
6748645f
LMI
4409
4410 ;; overview: [num subject from date id refs chars lines misc]
4411 (unwind-protect
23f87bed 4412 (let (x)
6748645f
LMI
4413 (narrow-to-region (point) eol)
4414 (unless (eobp)
4415 (forward-char))
4416
4417 (setq header
4418 (make-full-mail-header
4419 number ; number
23f87bed
MB
4420 (condition-case () ; subject
4421 (gnus-remove-odd-characters
4422 (funcall gnus-decode-encoded-word-function
4423 (setq x (nnheader-nov-field))))
4424 (error x))
4425 (condition-case () ; from
4426 (gnus-remove-odd-characters
343d6628 4427 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4428 (setq x (nnheader-nov-field))))
4429 (error x))
16409b0b 4430 (nnheader-nov-field) ; date
01c52d31 4431 (nnheader-nov-read-message-id number) ; id
23f87bed 4432 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4433 (nnheader-nov-read-integer) ; chars
4434 (nnheader-nov-read-integer) ; lines
4435 (unless (eobp)
8b93df01
DL
4436 (if (looking-at "Xref: ")
4437 (goto-char (match-end 0)))
4438 (nnheader-nov-field)) ; Xref
16409b0b 4439 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4440
4441 (widen))
4442
23f87bed
MB
4443 (when (and (string= references "")
4444 (setq in-reply-to (mail-header-extra header))
4445 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4446 (mail-header-set-references
4447 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4448
6748645f
LMI
4449 (when gnus-alter-header-function
4450 (funcall gnus-alter-header-function header))
4451 (gnus-dependencies-add-header header dependencies force-new)))
4452
eec82323 4453(defun gnus-build-get-header (id)
16409b0b
GM
4454 "Look through the buffer of NOV lines and find the header to ID.
4455Enter this line into the dependencies hash table, and return
4456the id of the parent article (if any)."
eec82323
LMI
4457 (let ((deps gnus-newsgroup-dependencies)
4458 found header)
4459 (prog1
c7a91ce1 4460 (with-current-buffer nntp-server-buffer
eec82323
LMI
4461 (let ((case-fold-search nil))
4462 (goto-char (point-min))
4463 (while (and (not found)
4464 (search-forward id nil t))
4465 (beginning-of-line)
4466 (setq found (looking-at
4467 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4468 (regexp-quote id))))
4469 (or found (beginning-of-line 2)))
4470 (when found
4471 (beginning-of-line)
4472 (and
4473 (setq header (gnus-nov-parse-line
4474 (read (current-buffer)) deps))
4475 (gnus-parent-id (mail-header-references header))))))
4476 (when header
4477 (let ((number (mail-header-number header)))
4478 (push number gnus-newsgroup-limit)
4479 (push header gnus-newsgroup-headers)
4480 (if (memq number gnus-newsgroup-unselected)
4481 (progn
23f87bed
MB
4482 (setq gnus-newsgroup-unreads
4483 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4484 number))
eec82323
LMI
4485 (setq gnus-newsgroup-unselected
4486 (delq number gnus-newsgroup-unselected)))
4487 (push number gnus-newsgroup-ancient)))))))
4488
6748645f
LMI
4489(defun gnus-build-all-threads ()
4490 "Read all the headers."
4491 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4492 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4493 (dependencies gnus-newsgroup-dependencies)
4494 header article)
c7a91ce1 4495 (with-current-buffer nntp-server-buffer
6748645f
LMI
4496 (let ((case-fold-search nil))
4497 (goto-char (point-min))
4498 (while (not (eobp))
4499 (ignore-errors
4500 (setq article (read (current-buffer))
16409b0b 4501 header (gnus-nov-parse-line article dependencies)))
6748645f 4502 (when header
01c52d31 4503 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4504 (push header gnus-newsgroup-headers)
4505 (if (memq (setq article (mail-header-number header))
4506 gnus-newsgroup-unselected)
4507 (progn
23f87bed
MB
4508 (setq gnus-newsgroup-unreads
4509 (gnus-add-to-sorted-list
4510 gnus-newsgroup-unreads article))
6748645f
LMI
4511 (setq gnus-newsgroup-unselected
4512 (delq article gnus-newsgroup-unselected)))
4513 (push article gnus-newsgroup-ancient)))
4514 (forward-line 1)))))))
4515
eec82323 4516(defun gnus-summary-update-article-line (article header)
23f87bed 4517 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4518 (let* ((id (mail-header-id header))
4519 (thread (gnus-id-to-thread id)))
4520 (unless thread
4521 (error "Article in no thread"))
4522 ;; Update the thread.
4523 (setcar thread header)
4524 (gnus-summary-goto-subject article)
4525 (let* ((datal (gnus-data-find-list article))
4526 (data (car datal))
c7a91ce1 4527 (inhibit-read-only t)
eec82323
LMI
4528 (level (gnus-summary-thread-level)))
4529 (gnus-delete-line)
23f87bed
MB
4530 (let ((inserted (- (point)
4531 (progn
4532 (gnus-summary-insert-line
4533 header level nil
4534 (memq article gnus-newsgroup-undownloaded)
4535 (gnus-article-mark article)
4536 (memq article gnus-newsgroup-replied)
4537 (memq article gnus-newsgroup-expirable)
4538 ;; Only insert the Subject string when it's different
4539 ;; from the previous Subject string.
4540 (if (and
4541 gnus-show-threads
4542 (gnus-subject-equal
4543 (condition-case ()
4544 (mail-header-subject
4545 (gnus-data-header
4546 (cadr
4547 (gnus-data-find-list
4548 article
4549 (gnus-data-list t)))))
4550 ;; Error on the side of excessive subjects.
4551 (error ""))
4552 (mail-header-subject header)))
4553 ""
4554 (mail-header-subject header))
4555 nil (cdr (assq article gnus-newsgroup-scored))
4556 (memq article gnus-newsgroup-processable))
4557 (point)))))
4558 (when (cdr datal)
4559 (gnus-data-update-list
4560 (cdr datal)
4561 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4562
4563(defun gnus-summary-update-article (article &optional iheader)
4564 "Update ARTICLE in the summary buffer."
4565 (set-buffer gnus-summary-buffer)
6748645f 4566 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4567 (id (mail-header-id header))
4568 (data (gnus-data-find article))
4569 (thread (gnus-id-to-thread id))
4570 (references (mail-header-references header))
4571 (parent
4572 (gnus-id-to-thread
4573 (or (gnus-parent-id
4574 (when (and references
4575 (not (equal "" references)))
4576 references))
4577 "none")))
c7a91ce1 4578 (inhibit-read-only t)
6748645f 4579 (old (car thread)))
eec82323 4580 (when thread
eec82323 4581 (unless iheader
6748645f
LMI
4582 (setcar thread nil)
4583 (when parent
4584 (delq thread parent)))
4585 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4586 ;; Set the (possibly) new article number in the data structure.
4587 (gnus-data-set-number data (gnus-id-to-article id))
4588 (setcar thread old)
4589 nil))))
4590
6748645f
LMI
4591(defun gnus-rebuild-thread (id &optional line)
4592 "Rebuild the thread containing ID.
4593If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4594 (let ((inhibit-read-only t)
eec82323
LMI
4595 old-pos current thread data)
4596 (if (not gnus-show-threads)
4597 (setq thread (list (car (gnus-id-to-thread id))))
4598 ;; Get the thread this article is part of.
4599 (setq thread (gnus-remove-thread id)))
01c52d31 4600 (setq old-pos (point-at-bol))
eec82323 4601 (setq current (save-excursion
94384150 4602 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4603 (gnus-summary-article-number))))
4604 ;; If this is a gathered thread, we have to go some re-gathering.
4605 (when (stringp (car thread))
4606 (let ((subject (car thread))
4607 roots thr)
4608 (setq thread (cdr thread))
4609 (while thread
4610 (unless (memq (setq thr (gnus-id-to-thread
4611 (gnus-root-id
4612 (mail-header-id (caar thread)))))
4613 roots)
4614 (push thr roots))
4615 (setq thread (cdr thread)))
4616 ;; We now have all (unique) roots.
4617 (if (= (length roots) 1)
4618 ;; All the loose roots are now one solid root.
4619 (setq thread (car roots))
4620 (setq thread (cons subject (gnus-sort-threads roots))))))
4621 (let (threads)
4622 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4623 (when line
4624 (goto-char (point-min))
4625 (forward-line (1- line)))
eec82323
LMI
4626 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4627 (if gnus-show-threads
4628 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4629 (gnus-summary-prepare-unthreaded thread))
4630 (setq data (nreverse gnus-newsgroup-data))
4631 (setq threads gnus-newsgroup-threads))
4632 ;; We splice the new data into the data structure.
6748645f
LMI
4633 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4634 ;;!!! then we want to insert at the beginning of the buffer.
4635 ;;!!! That happens to be true with Gnus now, but that may
4636 ;;!!! change in the future. Perhaps.
4637 (gnus-data-enter-list
4638 (if line nil current) data (- (point) old-pos))
4639 (setq gnus-newsgroup-threads
4640 (nconc threads gnus-newsgroup-threads))
4641 (gnus-data-compute-positions))))
eec82323
LMI
4642
4643(defun gnus-number-to-header (number)
4644 "Return the header for article NUMBER."
4645 (let ((headers gnus-newsgroup-headers))
4646 (while (and headers
4647 (not (= number (mail-header-number (car headers)))))
4648 (pop headers))
4649 (when headers
4650 (car headers))))
4651
6748645f 4652(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4653 "Return the headers of the GENERATIONeth parent of HEADERS."
4654 (unless generation
4655 (setq generation 1))
a8151ef7 4656 (let ((parent t)
6748645f 4657 (headers in-headers)
a8151ef7 4658 references)
6748645f
LMI
4659 (while (and parent
4660 (not (zerop generation))
4661 (setq references (mail-header-references headers)))
4662 (setq headers (if (and references
4663 (setq parent (gnus-parent-id references)))
4664 (car (gnus-id-to-thread parent))
4665 nil))
4666 (decf generation))
4667 (and (not (eq headers in-headers))
4668 headers)))
eec82323
LMI
4669
4670(defun gnus-id-to-thread (id)
4671 "Return the (sub-)thread where ID appears."
4672 (gnus-gethash id gnus-newsgroup-dependencies))
4673
4674(defun gnus-id-to-article (id)
4675 "Return the article number of ID."
4676 (let ((thread (gnus-id-to-thread id)))
4677 (when (and thread
4678 (car thread))
4679 (mail-header-number (car thread)))))
4680
4681(defun gnus-id-to-header (id)
4682 "Return the article headers of ID."
4683 (car (gnus-id-to-thread id)))
4684
4685(defun gnus-article-displayed-root-p (article)
4686 "Say whether ARTICLE is a root(ish) article."
4687 (let ((level (gnus-summary-thread-level article))
4688 (refs (mail-header-references (gnus-summary-article-header article)))
4689 particle)
4690 (cond
4691 ((null level) nil)
4692 ((zerop level) t)
4693 ((null refs) t)
4694 ((null (gnus-parent-id refs)) t)
4695 ((and (= 1 level)
4696 (null (setq particle (gnus-id-to-article
4697 (gnus-parent-id refs))))
4698 (null (gnus-summary-thread-level particle)))))))
4699
4700(defun gnus-root-id (id)
4701 "Return the id of the root of the thread where ID appears."
4702 (let (last-id prev)
6748645f 4703 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4704 (setq last-id id
4705 id (gnus-parent-id (mail-header-references prev))))
4706 last-id))
4707
6748645f
LMI
4708(defun gnus-articles-in-thread (thread)
4709 "Return the list of articles in THREAD."
4710 (cons (mail-header-number (car thread))
4711 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4712
eec82323
LMI
4713(defun gnus-remove-thread (id &optional dont-remove)
4714 "Remove the thread that has ID in it."
6748645f 4715 (let (headers thread last-id)
eec82323 4716 ;; First go up in this thread until we find the root.
6748645f
LMI
4717 (setq last-id (gnus-root-id id)
4718 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4719 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4720 ;; been gathered into some loose thread, so we have to search
4721 ;; through the threads to find the thread we wanted.
4722 (let ((threads gnus-newsgroup-threads)
4723 sub)
4724 (while threads
4725 (setq sub (car threads))
4726 (if (stringp (car sub))
4727 ;; This is a gathered thread, so we look at the roots
4728 ;; below it to find whether this article is in this
4729 ;; gathered root.
4730 (progn
4731 (setq sub (cdr sub))
4732 (while sub
4733 (when (member (caar sub) headers)
4734 (setq thread (car threads)
4735 threads nil
4736 sub nil))
4737 (setq sub (cdr sub))))
4738 ;; It's an ordinary thread, so we check it.
4739 (when (eq (car sub) (car headers))
4740 (setq thread sub
4741 threads nil)))
4742 (setq threads (cdr threads)))
4743 ;; If this article is in no thread, then it's a root.
4744 (if thread
4745 (unless dont-remove
4746 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4747 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4748 (when thread
4749 (prog1
4750 thread ; We return this thread.
4751 (unless dont-remove
4752 (if (stringp (car thread))
4753 (progn
4754 ;; If we use dummy roots, then we have to remove the
4755 ;; dummy root as well.
4756 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4757 ;; We go to the dummy root by going to
4758 ;; the first sub-"thread", and then one line up.
4759 (gnus-summary-goto-article
4760 (mail-header-number (caadr thread)))
4761 (forward-line -1)
eec82323
LMI
4762 (gnus-delete-line)
4763 (gnus-data-compute-positions))
4764 (setq thread (cdr thread))
4765 (while thread
4766 (gnus-remove-thread-1 (car thread))
4767 (setq thread (cdr thread))))
4768 (gnus-remove-thread-1 thread))))))))
4769
4770(defun gnus-remove-thread-1 (thread)
4771 "Remove the thread THREAD recursively."
4772 (let ((number (mail-header-number (pop thread)))
4773 d)
4774 (setq thread (reverse thread))
4775 (while thread
4776 (gnus-remove-thread-1 (pop thread)))
4777 (when (setq d (gnus-data-find number))
4778 (goto-char (gnus-data-pos d))
16409b0b 4779 (gnus-summary-show-thread)
eec82323
LMI
4780 (gnus-data-remove
4781 number
01c52d31 4782 (- (point-at-bol)
eec82323 4783 (prog1
01c52d31 4784 (1+ (point-at-eol))
eec82323
LMI
4785 (gnus-delete-line)))))))
4786
4921bbdd 4787(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4788 (sort (mapcar (lambda (thread)
4789 (cons (car thread)
4790 (and (cdr thread)
4921bbdd 4791 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4792 threads) func))
4793
4921bbdd
CY
4794(defun gnus-sort-threads-loop (threads func)
4795 (let* ((superthread (cons nil threads))
4796 (stack (list (cons superthread threads)))
4797 remaining-threads thread)
4798 (while stack
4799 (setq remaining-threads (cdr (car stack)))
4800 (if remaining-threads
4801 (progn (setq thread (car remaining-threads))
4802 (setcdr (car stack) (cdr remaining-threads))
4803 (if (cdr thread)
4804 (push (cons thread (cdr thread)) stack)))
4805 (setq thread (caar stack))
4806 (setcdr thread (sort (cdr thread) func))
4807 (pop stack)))
4808 (cdr superthread)))
4809
eec82323
LMI
4810(defun gnus-sort-threads (threads)
4811 "Sort THREADS."
4812 (if (not gnus-thread-sort-functions)
4813 threads
6748645f 4814 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4815 (prog1
4816 (condition-case nil
4817 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4818 (gnus-sort-threads-recursive
4819 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4820 ;; Even after binding max-lisp-eval-depth, the recursive
4821 ;; sorter might fail for very long threads. In that case,
4822 ;; try using a (less well-tested) non-recursive sorter.
3d6e7a43
KY
4823 (error (gnus-message 9 "Sorting threads with loop...")
4824 (gnus-sort-threads-loop
4921bbdd
CY
4825 threads (gnus-make-sort-function
4826 gnus-thread-sort-functions))))
4827 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4828
4829(defun gnus-sort-articles (articles)
4830 "Sort ARTICLES."
4831 (when gnus-article-sort-functions
4832 (gnus-message 7 "Sorting articles...")
4833 (prog1
4834 (setq gnus-newsgroup-headers
4835 (sort articles (gnus-make-sort-function
4836 gnus-article-sort-functions)))
4837 (gnus-message 7 "Sorting articles...done"))))
4838
4839;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4840(defmacro gnus-thread-header (thread)
16409b0b
GM
4841 "Return header of first article in THREAD.
4842Note that THREAD must never, ever be anything else than a variable -
4843using some other form will lead to serious barfage."
eec82323
LMI
4844 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4845 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4846 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4847 (vector thread) 2))
4848
4849(defsubst gnus-article-sort-by-number (h1 h2)
4850 "Sort articles by article number."
4851 (< (mail-header-number h1)
4852 (mail-header-number h2)))
4853
4854(defun gnus-thread-sort-by-number (h1 h2)
4855 "Sort threads by root article number."
4856 (gnus-article-sort-by-number
4857 (gnus-thread-header h1) (gnus-thread-header h2)))
4858
23f87bed 4859(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4860 "Sort articles randomly."
23f87bed
MB
4861 (zerop (random 2)))
4862
4863(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4864 "Sort threads randomly."
23f87bed
MB
4865 (gnus-article-sort-by-random
4866 (gnus-thread-header h1) (gnus-thread-header h2)))
4867
eec82323
LMI
4868(defsubst gnus-article-sort-by-lines (h1 h2)
4869 "Sort articles by article Lines header."
4870 (< (mail-header-lines h1)
4871 (mail-header-lines h2)))
4872
4873(defun gnus-thread-sort-by-lines (h1 h2)
4874 "Sort threads by root article Lines header."
4875 (gnus-article-sort-by-lines
4876 (gnus-thread-header h1) (gnus-thread-header h2)))
4877
16409b0b
GM
4878(defsubst gnus-article-sort-by-chars (h1 h2)
4879 "Sort articles by octet length."
4880 (< (mail-header-chars h1)
4881 (mail-header-chars h2)))
4882
4883(defun gnus-thread-sort-by-chars (h1 h2)
4884 "Sort threads by root article octet length."
4885 (gnus-article-sort-by-chars
4886 (gnus-thread-header h1) (gnus-thread-header h2)))
4887
eec82323
LMI
4888(defsubst gnus-article-sort-by-author (h1 h2)
4889 "Sort articles by root author."
b4fde39f 4890 (gnus-string<
eec82323
LMI
4891 (let ((extract (funcall
4892 gnus-extract-address-components
4893 (mail-header-from h1))))
4894 (or (car extract) (cadr extract) ""))
4895 (let ((extract (funcall
4896 gnus-extract-address-components
4897 (mail-header-from h2))))
4898 (or (car extract) (cadr extract) ""))))
4899
4900(defun gnus-thread-sort-by-author (h1 h2)
4901 "Sort threads by root author."
4902 (gnus-article-sort-by-author
4903 (gnus-thread-header h1) (gnus-thread-header h2)))
4904
01c52d31
MB
4905(defsubst gnus-article-sort-by-recipient (h1 h2)
4906 "Sort articles by recipient."
4907 (gnus-string<
4908 (let ((extract (funcall
4909 gnus-extract-address-components
4910 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4911 (or (car extract) (cadr extract)))
4912 (let ((extract (funcall
4913 gnus-extract-address-components
4914 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4915 (or (car extract) (cadr extract)))))
4916
4917(defun gnus-thread-sort-by-recipient (h1 h2)
4918 "Sort threads by root recipient."
4919 (gnus-article-sort-by-recipient
4920 (gnus-thread-header h1) (gnus-thread-header h2)))
4921
eec82323
LMI
4922(defsubst gnus-article-sort-by-subject (h1 h2)
4923 "Sort articles by root subject."
b4fde39f 4924 (gnus-string<
eec82323
LMI
4925 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4926 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4927
4928(defun gnus-thread-sort-by-subject (h1 h2)
4929 "Sort threads by root subject."
4930 (gnus-article-sort-by-subject
4931 (gnus-thread-header h1) (gnus-thread-header h2)))
4932
4933(defsubst gnus-article-sort-by-date (h1 h2)
4934 "Sort articles by root article date."
16409b0b 4935 (time-less-p
eec82323
LMI
4936 (gnus-date-get-time (mail-header-date h1))
4937 (gnus-date-get-time (mail-header-date h2))))
4938
4939(defun gnus-thread-sort-by-date (h1 h2)
4940 "Sort threads by root article date."
4941 (gnus-article-sort-by-date
4942 (gnus-thread-header h1) (gnus-thread-header h2)))
4943
4944(defsubst gnus-article-sort-by-score (h1 h2)
4945 "Sort articles by root article score.
4946Unscored articles will be counted as having a score of zero."
4947 (> (or (cdr (assq (mail-header-number h1)
4948 gnus-newsgroup-scored))
4949 gnus-summary-default-score 0)
4950 (or (cdr (assq (mail-header-number h2)
4951 gnus-newsgroup-scored))
4952 gnus-summary-default-score 0)))
4953
4954(defun gnus-thread-sort-by-score (h1 h2)
4955 "Sort threads by root article score."
4956 (gnus-article-sort-by-score
4957 (gnus-thread-header h1) (gnus-thread-header h2)))
4958
4959(defun gnus-thread-sort-by-total-score (h1 h2)
4960 "Sort threads by the sum of all scores in the thread.
4961Unscored articles will be counted as having a score of zero."
4962 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4963
4964(defun gnus-thread-total-score (thread)
16409b0b 4965 ;; This function find the total score of THREAD.
23f87bed
MB
4966 (cond
4967 ((null thread)
4968 0)
4969 ((consp thread)
4970 (if (stringp (car thread))
4971 (apply gnus-thread-score-function 0
4972 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4973 (gnus-thread-total-score-1 thread)))
4974 (t
4975 (gnus-thread-total-score-1 (list thread)))))
4976
4977(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4978 "Sort threads such that the thread with the most recently arrived article comes first."
4979 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4980
4981(defun gnus-thread-highest-number (thread)
4982 "Return the highest article number in THREAD."
4983 (apply 'max (mapcar (lambda (header)
4984 (mail-header-number header))
4985 (message-flatten-list thread))))
4986
4987(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4988 "Sort threads such that the thread with the most recently dated article comes first."
4989 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4990
3d6e7a43
KY
4991; Since this is called not only to sort the top-level threads, but
4992; also in recursive sorts to order the articles within a thread, each
4993; article will be processed many times. Thus it speeds things up
4994; quite a bit to use gnus-date-get-time, which caches the time value.
23f87bed
MB
4995(defun gnus-thread-latest-date (thread)
4996 "Return the highest article date in THREAD."
3d6e7a43
KY
4997 (apply 'max
4998 (mapcar (lambda (header) (gnus-float-time
4999 (gnus-date-get-time
5000 (mail-header-date header))))
5001 (message-flatten-list thread))))
eec82323
LMI
5002
5003(defun gnus-thread-total-score-1 (root)
5004 ;; This function find the total score of the thread below ROOT.
5005 (setq root (car root))
5006 (apply gnus-thread-score-function
5007 (or (append
5008 (mapcar 'gnus-thread-total-score
6748645f 5009 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5010 (when (> (mail-header-number root) 0)
5011 (list (or (cdr (assq (mail-header-number root)
5012 gnus-newsgroup-scored))
5013 gnus-summary-default-score 0))))
5014 (list gnus-summary-default-score)
5015 '(0))))
5016
5017;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5018(defvar gnus-tmp-prev-subject nil)
5019(defvar gnus-tmp-false-parent nil)
5020(defvar gnus-tmp-root-expunged nil)
5021(defvar gnus-tmp-dummy-line nil)
5022
16409b0b
GM
5023(defun gnus-extra-header (type &optional header)
5024 "Return the extra header of TYPE."
5025 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5026 ""))
5027
23f87bed
MB
5028(defvar gnus-tmp-thread-tree-header-string "")
5029
5030(defcustom gnus-sum-thread-tree-root "> "
5031 "With %B spec, used for the root of a thread.
5032If nil, use subject instead."
bf247b6e 5033 :version "22.1"
ad136a7c 5034 :type '(radio (const :format "%v " nil) string)
23f87bed 5035 :group 'gnus-thread)
01c52d31 5036
23f87bed
MB
5037(defcustom gnus-sum-thread-tree-false-root "> "
5038 "With %B spec, used for a false root of a thread.
5039If nil, use subject instead."
bf247b6e 5040 :version "22.1"
ad136a7c 5041 :type '(radio (const :format "%v " nil) string)
23f87bed 5042 :group 'gnus-thread)
01c52d31 5043
23f87bed
MB
5044(defcustom gnus-sum-thread-tree-single-indent ""
5045 "With %B spec, used for a thread with just one message.
5046If nil, use subject instead."
bf247b6e 5047 :version "22.1"
ad136a7c 5048 :type '(radio (const :format "%v " nil) string)
23f87bed 5049 :group 'gnus-thread)
01c52d31 5050
23f87bed
MB
5051(defcustom gnus-sum-thread-tree-vertical "| "
5052 "With %B spec, used for drawing a vertical line."
bf247b6e 5053 :version "22.1"
23f87bed
MB
5054 :type 'string
5055 :group 'gnus-thread)
01c52d31 5056
23f87bed
MB
5057(defcustom gnus-sum-thread-tree-indent " "
5058 "With %B spec, used for indenting."
bf247b6e 5059 :version "22.1"
23f87bed
MB
5060 :type 'string
5061 :group 'gnus-thread)
01c52d31 5062
23f87bed
MB
5063(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5064 "With %B spec, used for a leaf with brothers."
bf247b6e 5065 :version "22.1"
23f87bed
MB
5066 :type 'string
5067 :group 'gnus-thread)
01c52d31 5068
23f87bed
MB
5069(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5070 "With %B spec, used for a leaf without brothers."
bf247b6e 5071 :version "22.1"
23f87bed
MB
5072 :type 'string
5073 :group 'gnus-thread)
5074
1fc34624
GM
5075(defcustom gnus-summary-display-while-building nil
5076 "If non-nil, show and update the summary buffer as it's being built.
5077If the value is t, update the buffer after every line is inserted. If
5078the value is an integer (N), update the display every N lines."
5079 :version "22.1"
5080 :group 'gnus-thread
5081 :type '(choice (const :tag "off" nil)
5082 number
5083 (const :tag "frequently" t)))
5084
eec82323
LMI
5085(defun gnus-summary-prepare-threads (threads)
5086 "Prepare summary buffer from THREADS and indentation LEVEL.
5087THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5088or a straight list of headers."
5089 (gnus-message 7 "Generating summary...")
5090
5091 (setq gnus-newsgroup-threads threads)
5092 (beginning-of-line)
5093
5094 (let ((gnus-tmp-level 0)
5095 (default-score (or gnus-summary-default-score 0))
5096 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5097 (building-line-count gnus-summary-display-while-building)
5098 (building-count (integerp gnus-summary-display-while-building))
eec82323 5099 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5100 new-roots gnus-tmp-new-adopts thread-end simp-subject
5101 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5102 gnus-tmp-replied gnus-tmp-subject-or-nil
5103 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5104 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5105 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5106 tree-stack)
eec82323 5107
23f87bed
MB
5108 (setq gnus-tmp-prev-subject nil
5109 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5110
5111 (if (vectorp (car threads))
5112 ;; If this is a straight (sic) list of headers, then a
5113 ;; threaded summary display isn't required, so we just create
5114 ;; an unthreaded one.
5115 (gnus-summary-prepare-unthreaded threads)
5116
5117 ;; Do the threaded display.
5118
23f87bed
MB
5119 (if gnus-summary-display-while-building
5120 (switch-to-buffer (buffer-name)))
eec82323
LMI
5121 (while (or threads stack gnus-tmp-new-adopts new-roots)
5122
5123 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5124 (or (not stack)
5125 (= (caar stack) 0))
5126 (not gnus-tmp-false-parent)
5127 (or gnus-tmp-new-adopts new-roots))
5128 (if gnus-tmp-new-adopts
5129 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5130 thread (list (car gnus-tmp-new-adopts))
5131 gnus-tmp-header (caar thread)
5132 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5133 (when new-roots
5134 (setq thread (list (car new-roots))
5135 gnus-tmp-header (caar thread)
5136 new-roots (cdr new-roots))))
5137
5138 (if threads
5139 ;; If there are some threads, we do them before the
5140 ;; threads on the stack.
5141 (setq thread threads
5142 gnus-tmp-header (caar thread))
5143 ;; There were no current threads, so we pop something off
5144 ;; the stack.
5145 (setq state (car stack)
5146 gnus-tmp-level (car state)
23f87bed
MB
5147 tree-stack (cadr state)
5148 thread (caddr state)
eec82323
LMI
5149 stack (cdr stack)
5150 gnus-tmp-header (caar thread))))
5151
5152 (setq gnus-tmp-false-parent nil)
5153 (setq gnus-tmp-root-expunged nil)
5154 (setq thread-end nil)
5155
5156 (if (stringp gnus-tmp-header)
5157 ;; The header is a dummy root.
5158 (cond
5159 ((eq gnus-summary-make-false-root 'adopt)
5160 ;; We let the first article adopt the rest.
5161 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5162 (cddar thread)))
5163 (setq gnus-tmp-gathered
5164 (nconc (mapcar
5165 (lambda (h) (mail-header-number (car h)))
5166 (cddar thread))
5167 gnus-tmp-gathered))
5168 (setq thread (cons (list (caar thread)
5169 (cadar thread))
5170 (cdr thread)))
5171 (setq gnus-tmp-level -1
5172 gnus-tmp-false-parent t))
5173 ((eq gnus-summary-make-false-root 'empty)
5174 ;; We print adopted articles with empty subject fields.
5175 (setq gnus-tmp-gathered
5176 (nconc (mapcar
5177 (lambda (h) (mail-header-number (car h)))
5178 (cddar thread))
5179 gnus-tmp-gathered))
5180 (setq gnus-tmp-level -1))
5181 ((eq gnus-summary-make-false-root 'dummy)
5182 ;; We remember that we probably want to output a dummy
5183 ;; root.
5184 (setq gnus-tmp-dummy-line gnus-tmp-header)
5185 (setq gnus-tmp-prev-subject gnus-tmp-header))
5186 (t
5187 ;; We do not make a root for the gathered
5188 ;; sub-threads at all.
5189 (setq gnus-tmp-level -1)))
5190
5191 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5192 subject (mail-header-subject gnus-tmp-header)
5193 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5194
5195 (cond
5196 ;; If the thread has changed subject, we might want to make
5197 ;; this subthread into a root.
5198 ((and (null gnus-thread-ignore-subject)
5199 (not (zerop gnus-tmp-level))
5200 gnus-tmp-prev-subject
23f87bed 5201 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5202 (setq new-roots (nconc new-roots (list (car thread)))
5203 thread-end t
5204 gnus-tmp-header nil))
5205 ;; If the article lies outside the current limit,
5206 ;; then we do not display it.
5207 ((not (memq number gnus-newsgroup-limit))
5208 (setq gnus-tmp-gathered
5209 (nconc (mapcar
5210 (lambda (h) (mail-header-number (car h)))
5211 (cdar thread))
5212 gnus-tmp-gathered))
5213 (setq gnus-tmp-new-adopts (if (cdar thread)
5214 (append gnus-tmp-new-adopts
5215 (cdar thread))
5216 gnus-tmp-new-adopts)
5217 thread-end t
5218 gnus-tmp-header nil)
5219 (when (zerop gnus-tmp-level)
5220 (setq gnus-tmp-root-expunged t)))
5221 ;; Perhaps this article is to be marked as read?
5222 ((and gnus-summary-mark-below
5223 (< (or (cdr (assq number gnus-newsgroup-scored))
5224 default-score)
5225 gnus-summary-mark-below)
5226 ;; Don't touch sparse articles.
5227 (not (gnus-summary-article-sparse-p number))
5228 (not (gnus-summary-article-ancient-p number)))
5229 (setq gnus-newsgroup-unreads
5230 (delq number gnus-newsgroup-unreads))
5231 (if gnus-newsgroup-auto-expire
23f87bed
MB
5232 (setq gnus-newsgroup-expirable
5233 (gnus-add-to-sorted-list
5234 gnus-newsgroup-expirable number))
eec82323
LMI
5235 (push (cons number gnus-low-score-mark)
5236 gnus-newsgroup-reads))))
5237
5238 (when gnus-tmp-header
5239 ;; We may have an old dummy line to output before this
5240 ;; article.
6748645f
LMI
5241 (when (and gnus-tmp-dummy-line
5242 (gnus-subject-equal
5243 gnus-tmp-dummy-line
5244 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5245 (gnus-summary-insert-dummy-line
5246 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5247 (setq gnus-tmp-dummy-line nil))
5248
5249 ;; Compute the mark.
5250 (setq gnus-tmp-unread (gnus-article-mark number))
5251
5252 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5253 gnus-tmp-header gnus-tmp-level)
5254 gnus-newsgroup-data)
5255
5256 ;; Actually insert the line.
5257 (setq
5258 gnus-tmp-subject-or-nil
5259 (cond
5260 ((and gnus-thread-ignore-subject
5261 gnus-tmp-prev-subject
23f87bed 5262 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5263 subject)
5264 ((zerop gnus-tmp-level)
5265 (if (and (eq gnus-summary-make-false-root 'empty)
5266 (memq number gnus-tmp-gathered)
5267 gnus-tmp-prev-subject
23f87bed 5268 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5269 gnus-summary-same-subject
5270 subject))
5271 (t gnus-summary-same-subject)))
5272 (if (and (eq gnus-summary-make-false-root 'adopt)
5273 (= gnus-tmp-level 1)
5274 (memq number gnus-tmp-gathered))
5275 (setq gnus-tmp-opening-bracket ?\<
5276 gnus-tmp-closing-bracket ?\>)
5277 (setq gnus-tmp-opening-bracket ?\[
5278 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5279 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5280 (gnus-make-thread-indent-array
5281 (max (* 2 (length gnus-thread-indent-array))
5282 gnus-tmp-level)))
eec82323
LMI
5283 (setq
5284 gnus-tmp-indentation
5285 (aref gnus-thread-indent-array gnus-tmp-level)
5286 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5287 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5288 gnus-summary-default-score 0)
5289 gnus-tmp-score-char
5290 (if (or (null gnus-summary-default-score)
5291 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5292 gnus-summary-zcore-fuzz))
23f87bed 5293 ? ;Whitespace
eec82323
LMI
5294 (if (< gnus-tmp-score gnus-summary-default-score)
5295 gnus-score-below-mark gnus-score-over-mark))
5296 gnus-tmp-replied
5297 (cond ((memq number gnus-newsgroup-processable)
5298 gnus-process-mark)
5299 ((memq number gnus-newsgroup-cached)
5300 gnus-cached-mark)
5301 ((memq number gnus-newsgroup-replied)
5302 gnus-replied-mark)
23f87bed
MB
5303 ((memq number gnus-newsgroup-forwarded)
5304 gnus-forwarded-mark)
eec82323
LMI
5305 ((memq number gnus-newsgroup-saved)
5306 gnus-saved-mark)
23f87bed
MB
5307 ((memq number gnus-newsgroup-recent)
5308 gnus-recent-mark)
5309 ((memq number gnus-newsgroup-unseen)
5310 gnus-unseen-mark)
5311 (t gnus-no-mark))
5312 gnus-tmp-downloaded
5313 (cond ((memq number gnus-newsgroup-undownloaded)
5314 gnus-undownloaded-mark)
5315 (gnus-newsgroup-agentized
5316 gnus-downloaded-mark)
5317 (t
5318 gnus-no-mark))
eec82323
LMI
5319 gnus-tmp-from (mail-header-from gnus-tmp-header)
5320 gnus-tmp-name
5321 (cond
5322 ((string-match "<[^>]+> *$" gnus-tmp-from)
5323 (setq beg-match (match-beginning 0))
23f87bed
MB
5324 (or (and (string-match "^\".+\"" gnus-tmp-from)
5325 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5326 (substring gnus-tmp-from 0 beg-match)))
5327 ((string-match "(.+)" gnus-tmp-from)
5328 (substring gnus-tmp-from
5329 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5330 (t gnus-tmp-from))
5331
5332 ;; Do the %B string
5333 gnus-tmp-thread-tree-header-string
5334 (cond
5335 ((not gnus-show-threads) "")
5336 ((zerop gnus-tmp-level)
5337 (cond ((cdar thread)
5338 (or gnus-sum-thread-tree-root subject))
5339 (gnus-tmp-new-adopts
5340 (or gnus-sum-thread-tree-false-root subject))
5341 (t
5342 (or gnus-sum-thread-tree-single-indent subject))))
5343 (t
5344 (concat (apply 'concat
5345 (mapcar (lambda (item)
5346 (if (= item 1)
5347 gnus-sum-thread-tree-vertical
5348 gnus-sum-thread-tree-indent))
5349 (cdr (reverse tree-stack))))
5350 (if (nth 1 thread)
5351 gnus-sum-thread-tree-leaf-with-other
5352 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5353 (when (string= gnus-tmp-name "")
5354 (setq gnus-tmp-name gnus-tmp-from))
5355 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5356 (setq gnus-tmp-lines -1))
5357 (if (= gnus-tmp-lines -1)
5358 (setq gnus-tmp-lines "?")
5359 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5360 (gnus-put-text-property
64763fe3
MB
5361 (point)
5362 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5363 'gnus-number number)
64763fe3
MB
5364 (when gnus-visual-p
5365 (forward-line -1)
5366 (gnus-run-hooks 'gnus-summary-update-hook)
5367 (forward-line 1))
eec82323 5368
64763fe3 5369 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5370
5371 (when (nth 1 thread)
23f87bed
MB
5372 (push (list (max 0 gnus-tmp-level)
5373 (copy-sequence tree-stack)
5374 (nthcdr 1 thread))
5375 stack))
5376 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5377 (incf gnus-tmp-level)
5378 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5379 (if gnus-summary-display-while-building
5380 (if building-count
5381 (progn
5382 ;; use a set frequency
5383 (setq building-line-count (1- building-line-count))
5384 (when (= building-line-count 0)
5385 (sit-for 0)
5386 (setq building-line-count
5387 gnus-summary-display-while-building)))
5388 ;; always
5389 (sit-for 0)))
eec82323
LMI
5390 (unless threads
5391 (setq gnus-tmp-level 0)))))
5392 (gnus-message 7 "Generating summary...done"))
5393
5394(defun gnus-summary-prepare-unthreaded (headers)
5395 "Generate an unthreaded summary buffer based on HEADERS."
5396 (let (header number mark)
5397
5398 (beginning-of-line)
5399
5400 (while headers
5401 ;; We may have to root out some bad articles...
5402 (when (memq (setq number (mail-header-number
5403 (setq header (pop headers))))
5404 gnus-newsgroup-limit)
5405 ;; Mark article as read when it has a low score.
5406 (when (and gnus-summary-mark-below
5407 (< (or (cdr (assq number gnus-newsgroup-scored))
5408 gnus-summary-default-score 0)
5409 gnus-summary-mark-below)
5410 (not (gnus-summary-article-ancient-p number)))
5411 (setq gnus-newsgroup-unreads
5412 (delq number gnus-newsgroup-unreads))
5413 (if gnus-newsgroup-auto-expire
5414 (push number gnus-newsgroup-expirable)
5415 (push (cons number gnus-low-score-mark)
5416 gnus-newsgroup-reads)))
5417
5418 (setq mark (gnus-article-mark number))
5419 (push (gnus-data-make number mark (1+ (point)) header 0)
5420 gnus-newsgroup-data)
5421 (gnus-summary-insert-line
5422 header 0 number
23f87bed 5423 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5424 mark (memq number gnus-newsgroup-replied)
5425 (memq number gnus-newsgroup-expirable)
5426 (mail-header-subject header) nil
5427 (cdr (assq number gnus-newsgroup-scored))
5428 (memq number gnus-newsgroup-processable))))))
5429
16409b0b
GM
5430(defun gnus-summary-remove-list-identifiers ()
5431 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5432 (let ((regexp (if (consp gnus-list-identifiers)
5433 (mapconcat 'identity gnus-list-identifiers " *\\|")
5434 gnus-list-identifiers))
5435 changed subject)
5436 (when regexp
01c52d31 5437 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5438 (dolist (header gnus-newsgroup-headers)
5439 (setq subject (mail-header-subject header)
5440 changed nil)
01c52d31 5441 (while (string-match regexp subject)
23f87bed 5442 (setq subject
01c52d31 5443 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5444 (substring subject (match-end 0)))
5445 changed t))
23f87bed 5446 (when changed
01c52d31
MB
5447 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5448 (setq subject
5449 (concat (substring subject 0 (match-beginning 1))
5450 (substring subject (match-end 1)))))
23f87bed
MB
5451 (mail-header-set-subject header subject))))))
5452
5453(defun gnus-fetch-headers (articles)
5454 "Fetch headers of ARTICLES."
5455 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5456 (gnus-message 5 "Fetching headers for %s..." name)
5457 (prog1
5458 (if (eq 'nov
5459 (setq gnus-headers-retrieved-by
5460 (gnus-retrieve-headers
5461 articles gnus-newsgroup-name
5462 ;; We might want to fetch old headers, but
5463 ;; not if there is only 1 article.
5464 (and (or (and
5465 (not (eq gnus-fetch-old-headers 'some))
5466 (not (numberp gnus-fetch-old-headers)))
5467 (> (length articles) 1))
5468 gnus-fetch-old-headers))))
5469 (gnus-get-newsgroup-headers-xover
5470 articles nil nil gnus-newsgroup-name t)
5471 (gnus-get-newsgroup-headers))
5472 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5473
6748645f 5474(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5475 "Select newsgroup GROUP.
6748645f
LMI
5476If READ-ALL is non-nil, all articles in the group are selected.
5477If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5478 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5479 ;;!!! Dirty hack; should be removed.
5480 (gnus-summary-ignore-duplicates
23f87bed 5481 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5482 t
5483 gnus-summary-ignore-duplicates))
5484 (info (nth 2 entry))
01c52d31 5485 charset articles fetched-articles cached)
eec82323
LMI
5486
5487 (unless (gnus-check-server
475e0e0c
GM
5488 (set (make-local-variable 'gnus-current-select-method)
5489 (gnus-find-method-for-group group)))
eec82323 5490 (error "Couldn't open server"))
01c52d31 5491 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5492
5493 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5494 (gnus-activate-group group) ; Or we can activate it...
5495 (progn ; Or we bug out.
5496 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5497 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5498 (error
5499 "Couldn't activate group %s: %s"
5500 (mm-decode-coding-string group charset)
5501 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5502
5503 (unless (gnus-request-group group t)
01c52d31
MB
5504 (when (equal major-mode 'gnus-summary-mode)
5505 (gnus-kill-buffer (current-buffer)))
5506 (error "Couldn't request group %s: %s"
5507 (mm-decode-coding-string group charset)
5508 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5509
23f87bed 5510 (when gnus-agent
54506618 5511 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5512
23f87bed
MB
5513 (setq gnus-summary-use-undownloaded-faces
5514 (gnus-agent-find-parameter
5515 group
5516 'agent-enable-undownloaded-faces)))
5517
5518 (setq gnus-newsgroup-name group
5519 gnus-newsgroup-unselected nil
5520 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5521
5522 (let ((display (gnus-group-find-parameter group 'display)))
5523 (setq gnus-newsgroup-display
5524 (cond
5525 ((not (zerop (or (car-safe read-all) 0)))
5526 ;; The user entered the group with C-u SPC/RET, let's show
5527 ;; all articles.
5528 'gnus-not-ignore)
5529 ((eq display 'all)
5530 'gnus-not-ignore)
5531 ((arrayp display)
5532 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5533 ((numberp display)
5534 ;; The following is probably the "correct" solution, but
5535 ;; it makes Gnus fetch all headers and then limit the
5536 ;; articles (which is slow), so instead we hack the
5537 ;; select-articles parameter instead. -- Simon Josefsson
5538 ;; <jas@kth.se>
5539 ;;
5540 ;; (gnus-byte-compile
5541 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5542 ;; display)))))
5543 (setq select-articles
5544 (gnus-uncompress-range
5545 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5546 (if (> tmp 0)
5547 tmp
5548 1))
5549 (cdr (gnus-active group)))))
5550 nil)
5551 (t
5552 nil))))
eec82323 5553
23f87bed 5554 (gnus-summary-setup-default-charset)
eec82323
LMI
5555
5556 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5557 (when (gnus-virtual-group-p group)
5558 (setq cached gnus-newsgroup-cached))
5559
5560 (setq gnus-newsgroup-unreads
23f87bed
MB
5561 (gnus-sorted-ndifference
5562 (gnus-sorted-ndifference gnus-newsgroup-unreads
5563 gnus-newsgroup-marked)
eec82323
LMI
5564 gnus-newsgroup-dormant))
5565
5566 (setq gnus-newsgroup-processable nil)
5567
5568 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5569
23f87bed
MB
5570 ;; Adjust and set lists of article marks.
5571 (when info
5572 (gnus-adjust-marked-articles info))
6748645f
LMI
5573 (if (setq articles select-articles)
5574 (setq gnus-newsgroup-unselected
23f87bed 5575 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5576 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5577
5578 (cond
5579 ((null articles)
5580 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5581 'quit)
5582 ((eq articles 0) nil)
5583 (t
5584 ;; Init the dependencies hash table.
5585 (setq gnus-newsgroup-dependencies
5586 (gnus-make-hashtable (length articles)))
16409b0b 5587 (gnus-set-global-variables)
eec82323 5588 ;; Retrieve the headers and read them in.
23f87bed
MB
5589
5590 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5591
5592 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5593 (when cached
5594 (setq gnus-newsgroup-cached cached))
5595
5596 ;; Suppress duplicates?
5597 (when gnus-suppress-duplicates
5598 (gnus-dup-suppress-articles))
5599
5600 ;; Set the initial limit.
5601 (setq gnus-newsgroup-limit (copy-sequence articles))
5602 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5603 (setq fetched-articles
5604 (mapcar (lambda (headers) (mail-header-number headers))
5605 gnus-newsgroup-headers))
5606 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5607 (setq gnus-newsgroup-unreads
23f87bed
MB
5608 (gnus-sorted-nintersection
5609 gnus-newsgroup-unreads fetched-articles))
5610 (gnus-compute-unseen-list)
5611
eec82323
LMI
5612 ;; Removed marked articles that do not exist.
5613 (gnus-update-missing-marks
23f87bed 5614 (gnus-sorted-difference articles fetched-articles))
eec82323 5615 ;; We might want to build some more threads first.
6748645f
LMI
5616 (when (and gnus-fetch-old-headers
5617 (eq gnus-headers-retrieved-by 'nov))
5618 (if (eq gnus-fetch-old-headers 'invisible)
5619 (gnus-build-all-threads)
5620 (gnus-build-old-threads)))
5621 ;; Let the Gnus agent mark articles as read.
5622 (when gnus-agent
5623 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5624 ;; Remove list identifiers from subject
5625 (when gnus-list-identifiers
5626 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5627 ;; Check whether auto-expire is to be done in this group.
5628 (setq gnus-newsgroup-auto-expire
5629 (gnus-group-auto-expirable-p group))
5630 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5631 (unless (and gnus-single-article-buffer
5632 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5633 (gnus-article-setup-buffer))
5634 ;; First and last article in this newsgroup.
5635 (when gnus-newsgroup-headers
5636 (setq gnus-newsgroup-begin
5637 (mail-header-number (car gnus-newsgroup-headers))
5638 gnus-newsgroup-end
5639 (mail-header-number
5640 (gnus-last-element gnus-newsgroup-headers))))
5641 ;; GROUP is successfully selected.
5642 (or gnus-newsgroup-headers t)))))
5643
23f87bed
MB
5644(defun gnus-compute-unseen-list ()
5645 ;; The `seen' marks are treated specially.
5646 (if (not gnus-newsgroup-seen)
5647 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5648 (setq gnus-newsgroup-unseen
5649 (gnus-inverse-list-range-intersection
5650 gnus-newsgroup-articles gnus-newsgroup-seen))))
5651
d09ae6ca
GM
5652(declare-function gnus-get-predicate "gnus-agent" (predicate))
5653
23f87bed
MB
5654(defun gnus-summary-display-make-predicate (display)
5655 (require 'gnus-agent)
5656 (when (= (length display) 1)
5657 (setq display (car display)))
5658 (unless gnus-summary-display-cache
5659 (dolist (elem (append '((unread . unread)
5660 (read . read)
5661 (unseen . unseen))
5662 gnus-article-mark-lists))
5663 (push (cons (cdr elem)
5664 (gnus-byte-compile
5665 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5666 gnus-summary-display-cache)))
5667 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5668 (gnus-category-predicate-cache gnus-summary-display-cache))
5669 (gnus-get-predicate display)))
5670
5671;; Uses the dynamically bound `number' variable.
9efa445f 5672(defvar number)
23f87bed
MB
5673(defun gnus-article-marked-p (type &optional article)
5674 (let ((article (or article number)))
5675 (cond
5676 ((eq type 'tick)
5677 (memq article gnus-newsgroup-marked))
5678 ((eq type 'spam)
5679 (memq article gnus-newsgroup-spam-marked))
5680 ((eq type 'unsend)
5681 (memq article gnus-newsgroup-unsendable))
5682 ((eq type 'undownload)
5683 (memq article gnus-newsgroup-undownloaded))
5684 ((eq type 'download)
5685 (memq article gnus-newsgroup-downloadable))
5686 ((eq type 'unread)
5687 (memq article gnus-newsgroup-unreads))
5688 ((eq type 'read)
5689 (memq article gnus-newsgroup-reads))
5690 ((eq type 'dormant)
5691 (memq article gnus-newsgroup-dormant) )
5692 ((eq type 'expire)
5693 (memq article gnus-newsgroup-expirable))
5694 ((eq type 'reply)
5695 (memq article gnus-newsgroup-replied))
5696 ((eq type 'killed)
5697 (memq article gnus-newsgroup-killed))
5698 ((eq type 'bookmark)
5699 (assq article gnus-newsgroup-bookmarks))
5700 ((eq type 'score)
5701 (assq article gnus-newsgroup-scored))
5702 ((eq type 'save)
5703 (memq article gnus-newsgroup-saved))
5704 ((eq type 'cache)
5705 (memq article gnus-newsgroup-cached))
5706 ((eq type 'forward)
5707 (memq article gnus-newsgroup-forwarded))
5708 ((eq type 'seen)
5709 (not (memq article gnus-newsgroup-unseen)))
5710 ((eq type 'recent)
5711 (memq article gnus-newsgroup-recent))
5712 (t t))))
5713
eec82323 5714(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5715 "Find out what articles the user wants to read."
26c9afc3 5716 (let* ((articles
eec82323
LMI
5717 ;; Select all articles if `read-all' is non-nil, or if there
5718 ;; are no unread articles.
5719 (if (or read-all
5720 (and (zerop (length gnus-newsgroup-marked))
5721 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5722 ;; Fetch all if the predicate is non-nil.
5723 gnus-newsgroup-display)
5724 ;; We want to select the headers for all the articles in
5725 ;; the group, so we select either all the active
5726 ;; articles in the group, or (if that's nil), the
5727 ;; articles in the cache.
16409b0b 5728 (or
4b70e299 5729 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5730 (let ((active (gnus-active group)))
5731 (gnus-uncompress-range
5732 (cons (max (car active)
4b70e299
MB
5733 (- (cdr active)
5734 gnus-newsgroup-maximum-articles
5735 -1))
11abff8e
MB
5736 (cdr active))))
5737 (gnus-uncompress-range (gnus-active group)))
16409b0b 5738 (gnus-cache-articles-in-group group))
23f87bed
MB
5739 ;; Select only the "normal" subset of articles.
5740 (gnus-sorted-nunion
5741 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5742 gnus-newsgroup-unreads)))
eec82323
LMI
5743 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5744 (scored (length scored-list))
5745 (number (length articles))
5746 (marked (+ (length gnus-newsgroup-marked)
5747 (length gnus-newsgroup-dormant)))
5748 (select
5749 (cond
5750 ((numberp read-all)
5751 read-all)
23f87bed
MB
5752 ((numberp gnus-newsgroup-display)
5753 gnus-newsgroup-display)
eec82323
LMI
5754 (t
5755 (condition-case ()
5756 (cond
5757 ((and (or (<= scored marked) (= scored number))
5758 (numberp gnus-large-newsgroup)
5759 (> number gnus-large-newsgroup))
23f87bed
MB
5760 (let* ((cursor-in-echo-area nil)
5761 (initial (gnus-parameter-large-newsgroup-initial
5762 gnus-newsgroup-name))
5763 (input
5764 (read-string
5765 (format
5766 "How many articles from %s (%s %d): "
01c52d31 5767 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5768 (if initial "max" "default")
5769 number)
5770 (if initial
5771 (cons (number-to-string initial)
5772 0)))))
eec82323
LMI
5773 (if (string-match "^[ \t]*$" input) number input)))
5774 ((and (> scored marked) (< scored number)
5775 (> (- scored number) 20))
5776 (let ((input
5777 (read-string
5778 (format "%s %s (%d scored, %d total): "
5779 "How many articles from"
23f87bed
MB
5780 (gnus-group-decoded-name group)
5781 scored number))))
eec82323
LMI
5782 (if (string-match "^[ \t]*$" input)
5783 number input)))
5784 (t number))
d4dfaa19
DL
5785 (quit
5786 (message "Quit getting the articles to read")
5787 nil))))))
eec82323
LMI
5788 (setq select (if (stringp select) (string-to-number select) select))
5789 (if (or (null select) (zerop select))
5790 select
5791 (if (and (not (zerop scored)) (<= (abs select) scored))
5792 (progn
5793 (setq articles (sort scored-list '<))
5794 (setq number (length articles)))
5795 (setq articles (copy-sequence articles)))
5796
5797 (when (< (abs select) number)
5798 (if (< select 0)
5799 ;; Select the N oldest articles.
5800 (setcdr (nthcdr (1- (abs select)) articles) nil)
5801 ;; Select the N most recent articles.
5802 (setq articles (nthcdr (- number select) articles))))
5803 (setq gnus-newsgroup-unselected
23f87bed 5804 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5805 (when gnus-alter-articles-to-read-function
23f87bed 5806 (setq articles
a1506d29 5807 (sort
16409b0b 5808 (funcall gnus-alter-articles-to-read-function
23f87bed 5809 gnus-newsgroup-name articles)
16409b0b 5810 '<)))
eec82323
LMI
5811 articles)))
5812
5813(defun gnus-killed-articles (killed articles)
5814 (let (out)
5815 (while articles
5816 (when (inline (gnus-member-of-range (car articles) killed))
5817 (push (car articles) out))
5818 (setq articles (cdr articles)))
5819 out))
5820
5821(defun gnus-uncompress-marks (marks)
5822 "Uncompress the mark ranges in MARKS."
5823 (let ((uncompressed '(score bookmark))
5824 out)
5825 (while marks
5826 (if (memq (caar marks) uncompressed)
5827 (push (car marks) out)
5828 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5829 (setq marks (cdr marks)))
5830 out))
5831
23f87bed
MB
5832(defun gnus-article-mark-to-type (mark)
5833 "Return the type of MARK."
5834 (or (cadr (assq mark gnus-article-special-mark-lists))
5835 'list))
5836
5837(defun gnus-article-unpropagatable-p (mark)
5838 "Return whether MARK should be propagated to back end."
5839 (memq mark gnus-article-unpropagated-mark-lists))
5840
eec82323 5841(defun gnus-adjust-marked-articles (info)
16409b0b 5842 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5843 (let* ((marked-lists (gnus-info-marks info))
5844 (active (gnus-active (gnus-info-group info)))
5845 (min (car active))
5846 (max (cdr active))
5847 (types gnus-article-mark-lists)
54506618
MB
5848 marks var articles article mark mark-type
5849 bgn end)
eec82323 5850
23f87bed
MB
5851 (dolist (marks marked-lists)
5852 (setq mark (car marks)
5853 mark-type (gnus-article-mark-to-type mark)
5854 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5855
23f87bed
MB
5856 ;; We set the variable according to the type of the marks list,
5857 ;; and then adjust the marks to a subset of the active articles.
eec82323 5858 (cond
54506618 5859 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5860 ((eq mark-type 'list)
54506618
MB
5861 ;; Simultaneously uncompress and clip to active range
5862 ;; See gnus-uncompress-range for a description of possible marks
5863 (let (l lh)
5864 (if (not (cadr marks))
5865 (set var nil)
5866 (setq articles (if (numberp (cddr marks))
5867 (list (cdr marks))
5868 (cdr marks))
5869 lh (cons nil nil)
5870 l lh)
5871
5872 (while (setq article (pop articles))
5873 (cond ((consp article)
5874 (setq bgn (max (car article) min)
5875 end (min (cdr article) max))
5876 (while (<= bgn end)
5877 (setq l (setcdr l (cons bgn nil))
5878 bgn (1+ bgn))))
5879 ((and (<= min article)
5880 (>= max article))
5881 (setq l (setcdr l (cons article nil))))))
5882 (set var (cdr lh)))))
eec82323 5883 ;; Adjust assocs.
23f87bed
MB
5884 ((eq mark-type 'tuple)
5885 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5886 (when (not (listp (cdr (symbol-value var))))
5887 (set var (list (symbol-value var))))
5888 (when (not (listp (cdr articles)))
5889 (setq articles (list articles)))
eec82323
LMI
5890 (while articles
5891 (when (or (not (consp (setq article (pop articles))))
5892 (< (car article) min)
5893 (> (car article) max))
23f87bed
MB
5894 (set var (delq article (symbol-value var))))))
5895 ;; Adjust ranges (sloppily).
5896 ((eq mark-type 'range)
5897 (cond
5898 ((eq mark 'seen)
5899 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5900 ;; It should be (seen (NUM1 . NUM2)).
5901 (when (numberp (cddr marks))
5902 (setcdr marks (list (cdr marks))))
5903 (setq articles (cdr marks))
5904 (while (and articles
5905 (or (and (consp (car articles))
5906 (> min (cdar articles)))
5907 (and (numberp (car articles))
5908 (> min (car articles)))))
5909 (pop articles))
5910 (set var articles))))))))
eec82323
LMI
5911
5912(defun gnus-update-missing-marks (missing)
6748645f 5913 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5914 (when missing
23f87bed 5915 (let (var m)
eec82323 5916 ;; Go through all types.
23f87bed
MB
5917 (dolist (elem gnus-article-mark-lists)
5918 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5919 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5920 (when (symbol-value var)
5921 ;; This list has articles. So we delete all missing
5922 ;; articles from it.
5923 (setq m missing)
5924 (while m
5925 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5926
5927(defun gnus-update-marks ()
5928 "Enter the various lists of marked articles into the newsgroup info list."
5929 (let ((types gnus-article-mark-lists)
5930 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5931 type list newmarked symbol delta-marks)
eec82323 5932 (when info
16409b0b 5933 ;; Add all marks lists to the list of marks lists.
eec82323 5934 (while (setq type (pop types))
16409b0b
GM
5935 (setq list (symbol-value
5936 (setq symbol
23f87bed 5937 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5938
16409b0b 5939 (when list
eec82323
LMI
5940 ;; Get rid of the entries of the articles that have the
5941 ;; default score.
5942 (when (and (eq (cdr type) 'score)
5943 gnus-save-score
5944 list)
5945 (let* ((arts list)
5946 (prev (cons nil list))
5947 (all prev))
5948 (while arts
5949 (if (or (not (consp (car arts)))
5950 (= (cdar arts) gnus-summary-default-score))
5951 (setcdr prev (cdr arts))
5952 (setq prev arts))
5953 (setq arts (cdr arts)))
16409b0b
GM
5954 (setq list (cdr all)))))
5955
23f87bed
MB
5956 (when (eq (cdr type) 'seen)
5957 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5958
5959 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5960 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5961
23f87bed
MB
5962 (when (and (gnus-check-backend-function
5963 'request-set-mark gnus-newsgroup-name)
5964 (not (gnus-article-unpropagatable-p (cdr type))))
5965 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5966 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5967 (add (gnus-remove-from-range
5968 (gnus-copy-sequence list) old)))
5969 (when add
5970 (push (list add 'add (list (cdr type))) delta-marks))
5971 (when del
5972 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5973
16409b0b
GM
5974 (when list
5975 (push (cons (cdr type) list) newmarked)))
5976
5977 (when delta-marks
5978 (unless (gnus-check-group gnus-newsgroup-name)
5979 (error "Can't open server for %s" gnus-newsgroup-name))
5980 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5981
eec82323
LMI
5982 ;; Enter these new marks into the info of the group.
5983 (if (nthcdr 3 info)
5984 (setcar (nthcdr 3 info) newmarked)
5985 ;; Add the marks lists to the end of the info.
5986 (when newmarked
5987 (setcdr (nthcdr 2 info) (list newmarked))))
5988
5989 ;; Cut off the end of the info if there's nothing else there.
5990 (let ((i 5))
5991 (while (and (> i 2)
5992 (not (nth i info)))
5993 (when (nthcdr (decf i) info)
5994 (setcdr (nthcdr i info) nil)))))))
5995
5996(defun gnus-set-mode-line (where)
16409b0b 5997 "Set the mode line of the article or summary buffers.
eec82323
LMI
5998If WHERE is `summary', the summary mode line format will be used."
5999 ;; Is this mode line one we keep updated?
16409b0b
GM
6000 (when (and (memq where gnus-updated-mode-lines)
6001 (symbol-value
6002 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6003 (let (mode-string)
c7a91ce1
SM
6004 ;; We evaluate this in the summary buffer since these
6005 ;; variables are buffer-local to that buffer.
6006 (with-current-buffer gnus-summary-buffer
6007 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6008 ;; below.
6009 (let* ((mformat (symbol-value
6010 (intern
6011 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6012 (gnus-tmp-group-name (gnus-mode-string-quote
6013 (gnus-group-decoded-name
6014 gnus-newsgroup-name)))
eec82323
LMI
6015 (gnus-tmp-article-number (or gnus-current-article 0))
6016 (gnus-tmp-unread gnus-newsgroup-unreads)
6017 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6018 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6019 (gnus-tmp-unread-and-unselected
6020 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6021 (zerop gnus-tmp-unselected))
6022 "")
6023 ((zerop gnus-tmp-unselected)
6024 (format "{%d more}" gnus-tmp-unread-and-unticked))
6025 (t (format "{%d(+%d) more}"
6026 gnus-tmp-unread-and-unticked
6027 gnus-tmp-unselected))))
6028 (gnus-tmp-subject
6029 (if (and gnus-current-headers
6030 (vectorp gnus-current-headers))
6031 (gnus-mode-string-quote
6032 (mail-header-subject gnus-current-headers))
6033 ""))
6034 bufname-length max-len
23f87bed 6035 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6036 (setq mode-string (eval mformat))
6037 (setq bufname-length (if (string-match "%b" mode-string)
6038 (- (length
6039 (buffer-name
6040 (if (eq where 'summary)
6041 nil
6042 (get-buffer gnus-article-buffer))))
6043 2)
6044 0))
6045 (setq max-len (max 4 (if gnus-mode-non-string-length
6046 (- (window-width)
6047 gnus-mode-non-string-length
6048 bufname-length)
6049 (length mode-string))))
6050 ;; We might have to chop a bit of the string off...
6051 (when (> (length mode-string) max-len)
6052 (setq mode-string
16409b0b 6053 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
6054 "...")))
6055 ;; Pad the mode string a bit.
6056 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
6057 ;; Update the mode line.
6058 (setq mode-line-buffer-identification
6059 (gnus-mode-line-buffer-identification (list mode-string)))
6060 (set-buffer-modified-p t))))
6061
6062(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6063 "Go through the HEADERS list and add all Xrefs to a hash table.
6064The resulting hash table is returned, or nil if no Xrefs were found."
6065 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6066 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6067 (xref-hashtb (gnus-make-hashtable))
6068 start group entry number xrefs header)
6069 (while headers
6070 (setq header (pop headers))
6071 (when (and (setq xrefs (mail-header-xref header))
6072 (not (memq (setq number (mail-header-number header))
6073 unreads)))
6074 (setq start 0)
6075 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6076 (setq start (match-end 0))
6077 (setq group (if prefix
6078 (concat prefix (substring xrefs (match-beginning 1)
6079 (match-end 1)))
6080 (substring xrefs (match-beginning 1) (match-end 1))))
6081 (setq number
e9bd5782 6082 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6083 (match-end 2))))
6084 (if (setq entry (gnus-gethash group xref-hashtb))
6085 (setcdr entry (cons number (cdr entry)))
6086 (gnus-sethash group (cons number nil) xref-hashtb)))))
6087 (and start xref-hashtb)))
6088
6089(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6090 "Look through all the headers and mark the Xrefs as read."
6091 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6092 name info xref-hashtb idlist method nth4)
398a825b 6093 (with-current-buffer gnus-group-buffer
eec82323
LMI
6094 (when (setq xref-hashtb
6095 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6096 (mapatoms
6097 (lambda (group)
6098 (unless (string= from-newsgroup (setq name (symbol-name group)))
6099 (setq idlist (symbol-value group))
6100 ;; Dead groups are not updated.
6101 (and (prog1
01c52d31 6102 (setq info (gnus-get-info name))
eec82323
LMI
6103 (when (stringp (setq nth4 (gnus-info-method info)))
6104 (setq nth4 (gnus-server-to-method nth4))))
6105 ;; Only do the xrefs if the group has the same
6106 ;; select method as the group we have just read.
6107 (or (gnus-methods-equal-p
6108 nth4 (gnus-find-method-for-group from-newsgroup))
6109 virtual
6110 (equal nth4 (setq method (gnus-find-method-for-group
6111 from-newsgroup)))
6112 (and (equal (car nth4) (car method))
6113 (equal (nth 1 nth4) (nth 1 method))))
6114 gnus-use-cross-reference
6115 (or (not (eq gnus-use-cross-reference t))
6116 virtual
6117 ;; Only do cross-references on subscribed
6118 ;; groups, if that is what is wanted.
6119 (<= (gnus-info-level info) gnus-level-subscribed))
6120 (gnus-group-make-articles-read name idlist))))
6121 xref-hashtb)))))
6122
6748645f 6123(defun gnus-compute-read-articles (group articles)
01c52d31 6124 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6125 (info (nth 2 entry))
6126 (active (gnus-active group))
6127 ninfo)
6128 (when entry
16409b0b 6129 ;; First peel off all invalid article numbers.
6748645f
LMI
6130 (when active
6131 (let ((ids articles)
6132 id first)
6133 (while (setq id (pop ids))
6134 (when (and first (> id (cdr active)))
6135 ;; We'll end up in this situation in one particular
6136 ;; obscure situation. If you re-scan a group and get
6137 ;; a new article that is cross-posted to a different
6138 ;; group that has not been re-scanned, you might get
6139 ;; crossposted article that has a higher number than
6140 ;; Gnus believes possible. So we re-activate this
6141 ;; group as well. This might mean doing the
6142 ;; crossposting thingy will *increase* the number
6143 ;; of articles in some groups. Tsk, tsk.
6144 (setq active (or (gnus-activate-group group) active)))
6145 (when (or (> id (cdr active))
6146 (< id (car active)))
6147 (setq articles (delq id articles))))))
6148 ;; If the read list is nil, we init it.
6149 (if (and active
6150 (null (gnus-info-read info))
6151 (> (car active) 1))
6152 (setq ninfo (cons 1 (1- (car active))))
6153 (setq ninfo (gnus-info-read info)))
6154 ;; Then we add the read articles to the range.
6155 (gnus-add-to-range
6156 ninfo (setq articles (sort articles '<))))))
6157
eec82323
LMI
6158(defun gnus-group-make-articles-read (group articles)
6159 "Update the info of GROUP to say that ARTICLES are read."
6160 (let* ((num 0)
01c52d31 6161 (entry (gnus-group-entry group))
eec82323
LMI
6162 (info (nth 2 entry))
6163 (active (gnus-active group))
6164 range)
6748645f
LMI
6165 (when entry
6166 (setq range (gnus-compute-read-articles group articles))
01c52d31 6167 (with-current-buffer gnus-group-buffer
6748645f
LMI
6168 (gnus-undo-register
6169 `(progn
6170 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6171 (gnus-info-set-read ',info ',(gnus-info-read info))
6172 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6173 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6174 (gnus-group-update-group ,group t))))
6175 ;; Add the read articles to the range.
6176 (gnus-info-set-read info range)
23f87bed 6177 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6178 ;; Then we have to re-compute how many unread
6179 ;; articles there are in this group.
6180 (when active
6181 (cond
6182 ((not range)
6183 (setq num (- (1+ (cdr active)) (car active))))
6184 ((not (listp (cdr range)))
6185 (setq num (- (cdr active) (- (1+ (cdr range))
6186 (car range)))))
6187 (t
6188 (while range
6189 (if (numberp (car range))
6190 (setq num (1+ num))
6191 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6192 (setq range (cdr range)))
6193 (setq num (- (cdr active) num))))
6194 ;; Update the number of unread articles.
6195 (setcar entry num)
6196 ;; Update the group buffer.
23f87bed
MB
6197 (unless (gnus-ephemeral-group-p group)
6198 (gnus-group-update-group group t))))))
eec82323 6199
eec82323
LMI
6200(defvar gnus-newsgroup-none-id 0)
6201
6202(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6203 (let ((cur nntp-server-buffer)
6204 (dependencies
6205 (or dependencies
01c52d31
MB
6206 (with-current-buffer gnus-summary-buffer
6207 gnus-newsgroup-dependencies)))
6208 headers id end ref number
16409b0b
GM
6209 (mail-parse-charset gnus-newsgroup-charset)
6210 (mail-parse-ignored-charsets
c7a91ce1
SM
6211 (save-current-buffer (condition-case nil
6212 (set-buffer gnus-summary-buffer)
6213 (error))
6214 gnus-newsgroup-ignored-charsets)))
6215 (with-current-buffer nntp-server-buffer
eec82323
LMI
6216 ;; Translate all TAB characters into SPACE characters.
6217 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6218 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6219 (ietf-drums-unfold-fws)
6748645f 6220 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6221 (let ((case-fold-search t)
6748645f 6222 in-reply-to header p lines chars)
eec82323 6223 (goto-char (point-min))
01ccbb85 6224 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6225 ;; do not begin with 2 or 3.
6226 (while (re-search-forward "^[23][0-9]+ " nil t)
6227 (setq id nil
6228 ref nil)
6229 ;; This implementation of this function, with nine
6230 ;; search-forwards instead of the one re-search-forward and
6231 ;; a case (which basically was the old function) is actually
01ccbb85 6232 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6233 ;; can't have everything, I guess. Speed and elegance
6234 ;; doesn't always go hand in hand.
6235 (setq
6236 header
6237 (vector
6238 ;; Number.
6239 (prog1
01c52d31 6240 (setq number (read cur))
eec82323
LMI
6241 (end-of-line)
6242 (setq p (point))
6243 (narrow-to-region (point)
6244 (or (and (search-forward "\n.\n" nil t)
6245 (- (point) 2))
6246 (point))))
6247 ;; Subject.
6248 (progn
6249 (goto-char p)
23f87bed 6250 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6251 (funcall gnus-decode-encoded-word-function
6252 (nnheader-header-value))
2bd3dcae 6253 "(none)"))
eec82323
LMI
6254 ;; From.
6255 (progn
6256 (goto-char p)
23f87bed 6257 (if (search-forward "\nfrom:" nil t)
343d6628 6258 (funcall gnus-decode-encoded-address-function
16409b0b 6259 (nnheader-header-value))
2bd3dcae 6260 "(nobody)"))
eec82323
LMI
6261 ;; Date.
6262 (progn
6263 (goto-char p)
23f87bed 6264 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6265 (nnheader-header-value) ""))
6266 ;; Message-ID.
6267 (progn
6268 (goto-char p)
6748645f
LMI
6269 (setq id (if (re-search-forward
6270 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6271 ;; We do it this way to make sure the Message-ID
6272 ;; is (somewhat) syntactically valid.
6273 (buffer-substring (match-beginning 1)
6274 (match-end 1))
eec82323
LMI
6275 ;; If there was no message-id, we just fake one
6276 ;; to make subsequent routines simpler.
01c52d31 6277 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6278 ;; References.
6279 (progn
6280 (goto-char p)
23f87bed 6281 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6282 (progn
6283 (setq end (point))
6284 (prog1
6285 (nnheader-header-value)
6286 (setq ref
6287 (buffer-substring
6288 (progn
6289 (end-of-line)
6290 (search-backward ">" end t)
6291 (1+ (point)))
6292 (progn
6293 (search-backward "<" end t)
6294 (point))))))
6295 ;; Get the references from the in-reply-to header if there
6296 ;; were no references and the in-reply-to header looks
6297 ;; promising.
23f87bed 6298 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6299 (setq in-reply-to (nnheader-header-value))
6300 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6301 (let (ref2)
6302 (setq ref (substring in-reply-to (match-beginning 0)
6303 (match-end 0)))
6304 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6305 (setq ref2 (substring in-reply-to (match-beginning 0)
6306 (match-end 0)))
6307 (when (> (length ref2) (length ref))
6308 (setq ref ref2)))
6309 ref)
eec82323
LMI
6310 (setq ref nil))))
6311 ;; Chars.
6748645f
LMI
6312 (progn
6313 (goto-char p)
6314 (if (search-forward "\nchars: " nil t)
6315 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6316 chars -1)
6317 -1))
eec82323
LMI
6318 ;; Lines.
6319 (progn
6320 (goto-char p)
6321 (if (search-forward "\nlines: " nil t)
a8151ef7 6322 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6323 lines -1)
6324 -1))
eec82323
LMI
6325 ;; Xref.
6326 (progn
6327 (goto-char p)
23f87bed 6328 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6329 (nnheader-header-value)))
6330 ;; Extra.
6331 (when gnus-extra-headers
6332 (let ((extra gnus-extra-headers)
6333 out)
6334 (while extra
6335 (goto-char p)
6336 (when (search-forward
23f87bed 6337 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6338 (push (cons (car extra) (nnheader-header-value))
6339 out))
6340 (pop extra))
6341 out))))
eec82323
LMI
6342 (when (equal id ref)
6343 (setq ref nil))
6748645f
LMI
6344
6345 (when gnus-alter-header-function
6346 (funcall gnus-alter-header-function header)
6347 (setq id (mail-header-id header)
6348 ref (gnus-parent-id (mail-header-references header))))
6349
6350 (when (setq header
6351 (gnus-dependencies-add-header
6352 header dependencies force-new))
eec82323
LMI
6353 (push header headers))
6354 (goto-char (point-max))
6355 (widen))
6356 (nreverse headers)))))
6357
eec82323
LMI
6358;; Goes through the xover lines and returns a list of vectors
6359(defun gnus-get-newsgroup-headers-xover (sequence &optional
6360 force-new dependencies
6361 group also-fetch-heads)
16409b0b
GM
6362 "Parse the news overview data in the server buffer.
6363Return a list of headers that match SEQUENCE (see
6364`nntp-retrieve-headers')."
eec82323
LMI
6365 ;; Get the Xref when the users reads the articles since most/some
6366 ;; NNTP servers do not include Xrefs when using XOVER.
6367 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6368 (let ((mail-parse-charset gnus-newsgroup-charset)
6369 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6370 (cur nntp-server-buffer)
eec82323 6371 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6372 (allp (cond
6373 ((eq gnus-read-all-available-headers t)
6374 t)
14e6dc54
MB
6375 ((and (stringp gnus-read-all-available-headers)
6376 group)
23f87bed
MB
6377 (string-match gnus-read-all-available-headers group))
6378 (t
6379 nil)))
eec82323 6380 number headers header)
c7a91ce1 6381 (with-current-buffer nntp-server-buffer
16409b0b 6382 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6383 ;; Allow the user to mangle the headers before parsing them.
6748645f 6384 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6385 (goto-char (point-min))
23f87bed
MB
6386 (gnus-parse-without-error
6387 (while (and (or sequence allp)
6388 (not (eobp)))
6389 (setq number (read cur))
6390 (when (not allp)
6391 (while (and sequence
6392 (< (car sequence) number))
6393 (setq sequence (cdr sequence))))
6394 (when (and (or allp
6395 (and sequence
6396 (eq number (car sequence))))
6397 (progn
6398 (setq sequence (cdr sequence))
6399 (setq header (inline
6400 (gnus-nov-parse-line
6401 number dependencies force-new)))))
6402 (push header headers))
6403 (forward-line 1)))
eec82323
LMI
6404 ;; A common bug in inn is that if you have posted an article and
6405 ;; then retrieves the active file, it will answer correctly --
6406 ;; the new article is included. However, a NOV entry for the
6407 ;; article may not have been generated yet, so this may fail.
6408 ;; We work around this problem by retrieving the last few
6409 ;; headers using HEAD.
6410 (if (or (not also-fetch-heads)
6411 (not sequence))
6412 ;; We (probably) got all the headers.
6413 (nreverse headers)
6414 (let ((gnus-nov-is-evil t))
6415 (nconc
6416 (nreverse headers)
23f87bed 6417 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6418 (gnus-get-newsgroup-headers))))))))
6419
6420(defun gnus-article-get-xrefs ()
6421 "Fill in the Xref value in `gnus-current-headers', if necessary.
6422This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6423 (let ((headers (with-current-buffer gnus-summary-buffer
6424 gnus-current-headers)))
eec82323
LMI
6425 (or (not gnus-use-cross-reference)
6426 (not headers)
6427 (and (mail-header-xref headers)
6428 (not (string= (mail-header-xref headers) "")))
6429 (let ((case-fold-search t)
6430 xref)
6431 (save-restriction
6432 (nnheader-narrow-to-headers)
6433 (goto-char (point-min))
16409b0b
GM
6434 (when (or (and (not (eobp))
6435 (eq (downcase (char-after)) ?x)
eec82323
LMI
6436 (looking-at "Xref:"))
6437 (search-forward "\nXref:" nil t))
6438 (goto-char (1+ (match-end 0)))
01c52d31 6439 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6440 (mail-header-set-xref headers xref)))))))
6441
6442(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6443 "Find article ID and insert the summary line for that article.
6444OLD-HEADER can either be a header or a line number to insert
6445the subject line on."
6446 (let* ((line (and (numberp old-header) old-header))
6447 (old-header (and (vectorp old-header) old-header))
6448 (header (cond ((and old-header use-old-header)
16409b0b
GM
6449 old-header)
6450 ((and (numberp id)
6451 (gnus-number-to-header id))
6452 (gnus-number-to-header id))
6453 (t
6454 (gnus-read-header id))))
6455 (number (and (numberp id) id))
6456 d)
eec82323
LMI
6457 (when header
6458 ;; Rebuild the thread that this article is part of and go to the
6459 ;; article we have fetched.
6460 (when (and (not gnus-show-threads)
6461 old-header)
6748645f
LMI
6462 (when (and number
6463 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6464 (goto-char (gnus-data-pos d))
6465 (gnus-data-remove
6466 number
01c52d31 6467 (- (point-at-bol)
eec82323 6468 (prog1
01c52d31 6469 (1+ (point-at-eol))
eec82323 6470 (gnus-delete-line))))))
23f87bed
MB
6471 ;; Remove list identifiers from subject.
6472 (when gnus-list-identifiers
6473 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6474 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6475 (when old-header
6476 (mail-header-set-number header (mail-header-number old-header)))
6477 (setq gnus-newsgroup-sparse
6478 (delq (setq number (mail-header-number header))
6479 gnus-newsgroup-sparse))
6480 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6481 (push number gnus-newsgroup-limit)
6482 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6483 (gnus-summary-goto-subject number nil t))
6484 (when (and (numberp number)
6485 (> number 0))
6486 ;; We have to update the boundaries even if we can't fetch the
6487 ;; article if ID is a number -- so that the next `P' or `N'
6488 ;; command will fetch the previous (or next) article even
6489 ;; if the one we tried to fetch this time has been canceled.
6490 (when (> number gnus-newsgroup-end)
6491 (setq gnus-newsgroup-end number))
6492 (when (< number gnus-newsgroup-begin)
6493 (setq gnus-newsgroup-begin number))
6494 (setq gnus-newsgroup-unselected
6495 (delq number gnus-newsgroup-unselected)))
6496 ;; Report back a success?
6497 (and header (mail-header-number header))))
6498
6499;;; Process/prefix in the summary buffer
6500
6501(defun gnus-summary-work-articles (n)
6748645f
LMI
6502 "Return a list of articles to be worked upon.
6503The prefix argument, the list of process marked articles, and the
6504current article will be taken into consideration."
c7a91ce1 6505 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6506 (cond
6507 (n
6508 ;; A numerical prefix has been given.
6509 (setq n (prefix-numeric-value n))
6510 (let ((backward (< n 0))
6511 (n (abs (prefix-numeric-value n)))
6512 articles article)
6513 (save-excursion
6514 (while
6515 (and (> n 0)
6516 (push (setq article (gnus-summary-article-number))
6517 articles)
6518 (if backward
6519 (gnus-summary-find-prev nil article)
6520 (gnus-summary-find-next nil article)))
6521 (decf n)))
6522 (nreverse articles)))
6523 ((and (gnus-region-active-p) (mark))
6524 (message "region active")
6525 ;; Work on the region between point and mark.
6526 (let ((max (max (point) (mark)))
6527 articles article)
6528 (save-excursion
7dafe00b 6529 (goto-char (min (point) (mark)))
6748645f
LMI
6530 (while
6531 (and
6532 (push (setq article (gnus-summary-article-number)) articles)
6533 (gnus-summary-find-next nil article)
6534 (< (point) max)))
6535 (nreverse articles))))
6536 (gnus-newsgroup-processable
6537 ;; There are process-marked articles present.
6538 ;; Save current state.
6539 (gnus-summary-save-process-mark)
6540 ;; Return the list.
6541 (reverse gnus-newsgroup-processable))
6542 (t
6543 ;; Just return the current article.
6544 (list (gnus-summary-article-number))))))
6545
6546(defmacro gnus-summary-iterate (arg &rest forms)
6547 "Iterate over the process/prefixed articles and do FORMS.
6548ARG is the interactive prefix given to the command. FORMS will be
6549executed with point over the summary line of the articles."
6550 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6551 `(let ((,articles (gnus-summary-work-articles ,arg)))
6552 (while ,articles
6553 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6554 ,@forms
6555 (pop ,articles)))))
6748645f
LMI
6556
6557(put 'gnus-summary-iterate 'lisp-indent-function 1)
6558(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6559
6560(defun gnus-summary-save-process-mark ()
6561 "Push the current set of process marked articles on the stack."
6562 (interactive)
6563 (push (copy-sequence gnus-newsgroup-processable)
6564 gnus-newsgroup-process-stack))
6565
6566(defun gnus-summary-kill-process-mark ()
6567 "Push the current set of process marked articles on the stack and unmark."
6568 (interactive)
6569 (gnus-summary-save-process-mark)
6570 (gnus-summary-unmark-all-processable))
6571
6572(defun gnus-summary-yank-process-mark ()
6573 "Pop the last process mark state off the stack and restore it."
6574 (interactive)
6575 (unless gnus-newsgroup-process-stack
6576 (error "Empty mark stack"))
6577 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6578
6579(defun gnus-summary-process-mark-set (set)
6580 "Make SET into the current process marked articles."
6581 (gnus-summary-unmark-all-processable)
01c52d31 6582 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6583
6584;;; Searching and stuff
6585
6586(defun gnus-summary-search-group (&optional backward use-level)
6587 "Search for next unread newsgroup.
6588If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6589 (with-current-buffer gnus-group-buffer
eec82323
LMI
6590 (when (gnus-group-search-forward
6591 backward nil (if use-level (gnus-group-group-level) nil))
6592 (gnus-group-group-name))))
6593
6594(defun gnus-summary-best-group (&optional exclude-group)
6595 "Find the name of the best unread group.
6596If EXCLUDE-GROUP, do not go to this group."
01c52d31 6597 (with-current-buffer gnus-group-buffer
eec82323
LMI
6598 (save-excursion
6599 (gnus-group-best-unread-group exclude-group))))
6600
23f87bed
MB
6601(defun gnus-summary-find-next (&optional unread article backward)
6602 (if backward
6603 (gnus-summary-find-prev unread article)
eec82323
LMI
6604 (let* ((dummy (gnus-summary-article-intangible-p))
6605 (article (or article (gnus-summary-article-number)))
23f87bed 6606 (data (gnus-data-find-list article))
eec82323
LMI
6607 result)
6608 (when (and (not dummy)
6609 (or (not gnus-summary-check-current)
6610 (not unread)
23f87bed
MB
6611 (not (gnus-data-unread-p (car data)))))
6612 (setq data (cdr data)))
eec82323
LMI
6613 (when (setq result
6614 (if unread
6615 (progn
23f87bed
MB
6616 (while data
6617 (unless (memq (gnus-data-number (car data))
6618 (cond
6619 ((eq gnus-auto-goto-ignores
6620 'always-undownloaded)
6621 gnus-newsgroup-undownloaded)
6622 (gnus-plugged
6623 nil)
6624 ((eq gnus-auto-goto-ignores
6625 'unfetched)
6626 gnus-newsgroup-unfetched)
6627 ((eq gnus-auto-goto-ignores
6628 'undownloaded)
6629 gnus-newsgroup-undownloaded)))
6630 (when (gnus-data-unread-p (car data))
6631 (setq result (car data)
6632 data nil)))
6633 (setq data (cdr data)))
eec82323 6634 result)
23f87bed 6635 (car data)))
eec82323
LMI
6636 (goto-char (gnus-data-pos result))
6637 (gnus-data-number result)))))
6638
6639(defun gnus-summary-find-prev (&optional unread article)
6640 (let* ((eobp (eobp))
6641 (article (or article (gnus-summary-article-number)))
23f87bed 6642 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6643 result)
6644 (when (and (not eobp)
6645 (or (not gnus-summary-check-current)
6646 (not unread)
23f87bed
MB
6647 (not (gnus-data-unread-p (car data)))))
6648 (setq data (cdr data)))
eec82323
LMI
6649 (when (setq result
6650 (if unread
6651 (progn
23f87bed
MB
6652 (while data
6653 (unless (memq (gnus-data-number (car data))
6654 (cond
6655 ((eq gnus-auto-goto-ignores
6656 'always-undownloaded)
6657 gnus-newsgroup-undownloaded)
6658 (gnus-plugged
6659 nil)
6660 ((eq gnus-auto-goto-ignores
6661 'unfetched)
6662 gnus-newsgroup-unfetched)
6663 ((eq gnus-auto-goto-ignores
6664 'undownloaded)
6665 gnus-newsgroup-undownloaded)))
6666 (when (gnus-data-unread-p (car data))
6667 (setq result (car data)
6668 data nil)))
6669 (setq data (cdr data)))
eec82323 6670 result)
23f87bed 6671 (car data)))
eec82323
LMI
6672 (goto-char (gnus-data-pos result))
6673 (gnus-data-number result))))
6674
6675(defun gnus-summary-find-subject (subject &optional unread backward article)
6676 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6677 (article (or article (gnus-summary-article-number)))
6678 (articles (gnus-data-list backward))
6679 (arts (gnus-data-find-list article articles))
6680 result)
6681 (when (or (not gnus-summary-check-current)
6682 (not unread)
6683 (not (gnus-data-unread-p (car arts))))
6684 (setq arts (cdr arts)))
6685 (while arts
6686 (and (or (not unread)
6687 (gnus-data-unread-p (car arts)))
6688 (vectorp (gnus-data-header (car arts)))
6689 (gnus-subject-equal
6690 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6691 (setq result (car arts)
6692 arts nil))
6693 (setq arts (cdr arts)))
6694 (and result
6695 (goto-char (gnus-data-pos result))
6696 (gnus-data-number result))))
6697
6698(defun gnus-summary-search-forward (&optional unread subject backward)
6699 "Search forward for an article.
6700If UNREAD, look for unread articles. If SUBJECT, look for
6701articles with that subject. If BACKWARD, search backward instead."
6702 (cond (subject (gnus-summary-find-subject subject unread backward))
6703 (backward (gnus-summary-find-prev unread))
6704 (t (gnus-summary-find-next unread))))
6705
6706(defun gnus-recenter (&optional n)
6707 "Center point in window and redisplay frame.
6708Also do horizontal recentering."
6709 (interactive "P")
6710 (when (and gnus-auto-center-summary
6711 (not (eq gnus-auto-center-summary 'vertical)))
6712 (gnus-horizontal-recenter))
5aa75bd8
JL
6713 (if (fboundp 'recenter-top-bottom)
6714 (recenter-top-bottom n)
6715 (recenter n)))
6716
6717(put 'gnus-recenter 'isearch-scroll t)
eec82323 6718
7b47345b
AS
6719(defun gnus-forward-line-ignore-invisible (n)
6720 "Move N lines forward (backward if N is negative).
6721Like forward-line, but skip over (and don't count) invisible lines."
6722 (let (done)
6723 (while (and (> n 0) (not done))
6724 ;; If the following character is currently invisible,
6725 ;; skip all characters with that same `invisible' property value.
770d9a1f
KY
6726 (while (gnus-invisible-p (point))
6727 (goto-char (gnus-next-char-property-change (point))))
7b47345b
AS
6728 (forward-line 1)
6729 (if (eobp)
6730 (setq done t)
6731 (setq n (1- n))))
6732 (while (and (< n 0) (not done))
6733 (forward-line -1)
6734 (if (bobp) (setq done t)
6735 (setq n (1+ n))
770d9a1f
KY
6736 (while (and (not (bobp)) (gnus-invisible-p (1- (point))))
6737 (goto-char (gnus-previous-char-property-change (point))))))))
6738
eec82323
LMI
6739(defun gnus-summary-recenter ()
6740 "Center point in the summary window.
6741If `gnus-auto-center-summary' is nil, or the article buffer isn't
6742displayed, no centering will be performed."
6743 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6744 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6745 (interactive)
23f87bed
MB
6746 ;; The user has to want it.
6747 (when gnus-auto-center-summary
6748 (let* ((top (cond ((< (window-height) 4) 0)
6749 ((< (window-height) 7) 1)
6750 (t (if (numberp gnus-auto-center-summary)
6751 gnus-auto-center-summary
01c52d31 6752 (/ (1- (window-height)) 2)))))
23f87bed 6753 (height (1- (window-height)))
7b47345b
AS
6754 (bottom (save-excursion
6755 (goto-char (point-max))
6756 (gnus-forward-line-ignore-invisible (- height))
6757 (point)))
23f87bed 6758 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6759 (when (get-buffer-window gnus-article-buffer)
6760 ;; Only do recentering when the article buffer is displayed,
6761 ;; Set the window start to either `bottom', which is the biggest
6762 ;; possible valid number, or the second line from the top,
6763 ;; whichever is the least.
7b47345b
AS
6764 (let ((top-pos (save-excursion
6765 (gnus-forward-line-ignore-invisible (- top))
6766 (point))))
db7ebd73
MB
6767 (if (> bottom top-pos)
6768 ;; Keep the second line from the top visible
01c52d31 6769 (set-window-start window top-pos)
db7ebd73
MB
6770 ;; Try to keep the bottom line visible; if it's partially
6771 ;; obscured, either scroll one more line to make it fully
6772 ;; visible, or revert to using TOP-POS.
6773 (save-excursion
6774 (goto-char (point-max))
7b47345b 6775 (gnus-forward-line-ignore-invisible -1)
db7ebd73
MB
6776 (let ((last-line-start (point)))
6777 (goto-char bottom)
6778 (set-window-start window (point) t)
6779 (when (not (pos-visible-in-window-p last-line-start window))
7b47345b 6780 (gnus-forward-line-ignore-invisible 1)
db7ebd73 6781 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6782 ;; Do horizontal recentering while we're at it.
6783 (when (and (get-buffer-window (current-buffer) t)
6784 (not (eq gnus-auto-center-summary 'vertical)))
6785 (let ((selected (selected-window)))
6786 (select-window (get-buffer-window (current-buffer) t))
6787 (gnus-summary-position-point)
6788 (gnus-horizontal-recenter)
6789 (select-window selected))))))
6790
6791(defun gnus-summary-jump-to-group (newsgroup)
6792 "Move point to NEWSGROUP in group mode buffer."
6793 ;; Keep update point of group mode buffer if visible.
6794 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6795 (save-window-excursion
6796 ;; Take care of tree window mode.
6797 (when (get-buffer-window gnus-group-buffer)
6798 (pop-to-buffer gnus-group-buffer))
6799 (gnus-group-jump-to-group newsgroup))
6800 (save-excursion
6801 ;; Take care of tree window mode.
c7a91ce1 6802 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6803 (pop-to-buffer gnus-group-buffer)
6804 (set-buffer gnus-group-buffer))
6805 (gnus-group-jump-to-group newsgroup))))
6806
6807;; This function returns a list of article numbers based on the
6808;; difference between the ranges of read articles in this group and
6809;; the range of active articles.
6810(defun gnus-list-of-unread-articles (group)
6811 (let* ((read (gnus-info-read (gnus-get-info group)))
6812 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6813 (last (or (cdr active)
6814 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6815 (bottom (if gnus-newsgroup-maximum-articles
6816 (max (car active)
6817 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6818 (car active)))
eec82323
LMI
6819 first nlast unread)
6820 ;; If none are read, then all are unread.
6821 (if (not read)
11abff8e 6822 (setq first bottom)
eec82323
LMI
6823 ;; If the range of read articles is a single range, then the
6824 ;; first unread article is the article after the last read
6825 ;; article. Sounds logical, doesn't it?
16409b0b 6826 (if (and (not (listp (cdr read)))
11abff8e 6827 (or (< (car read) bottom)
16409b0b
GM
6828 (progn (setq read (list read))
6829 nil)))
11abff8e 6830 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6831 ;; `read' is a list of ranges.
6832 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6833 (caar read)))
6834 1)
11abff8e 6835 (setq first bottom))
eec82323
LMI
6836 (while read
6837 (when first
6838 (while (< first nlast)
54506618
MB
6839 (setq unread (cons first unread)
6840 first (1+ first))))
eec82323
LMI
6841 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6842 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6843 (setq read (cdr read)))))
6844 ;; And add the last unread articles.
6845 (while (<= first last)
54506618
MB
6846 (setq unread (cons first unread)
6847 first (1+ first)))
eec82323 6848 ;; Return the list of unread articles.
6748645f 6849 (delq 0 (nreverse unread))))
eec82323
LMI
6850
6851(defun gnus-list-of-read-articles (group)
6852 "Return a list of unread, unticked and non-dormant articles."
6853 (let* ((info (gnus-get-info group))
6854 (marked (gnus-info-marks info))
6855 (active (gnus-active group)))
6856 (and info active
23f87bed
MB
6857 (gnus-list-range-difference
6858 (gnus-list-range-difference
6859 (gnus-sorted-complement
11abff8e 6860 (gnus-uncompress-range
4b70e299 6861 (if gnus-newsgroup-maximum-articles
11abff8e 6862 (cons (max (car active)
4b70e299
MB
6863 (- (cdr active)
6864 gnus-newsgroup-maximum-articles
6865 -1))
11abff8e
MB
6866 (cdr active))
6867 active))
23f87bed
MB
6868 (gnus-list-of-unread-articles group))
6869 (cdr (assq 'dormant marked)))
6870 (cdr (assq 'tick marked))))))
eec82323 6871
54506618
MB
6872;; This function returns a sequence of article numbers based on the
6873;; difference between the ranges of read articles in this group and
6874;; the range of active articles.
6875(defun gnus-sequence-of-unread-articles (group)
6876 (let* ((read (gnus-info-read (gnus-get-info group)))
6877 (active (or (gnus-active group) (gnus-activate-group group)))
6878 (last (cdr active))
4b70e299
MB
6879 (bottom (if gnus-newsgroup-maximum-articles
6880 (max (car active)
6881 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6882 (car active)))
54506618
MB
6883 first nlast unread)
6884 ;; If none are read, then all are unread.
6885 (if (not read)
11abff8e 6886 (setq first bottom)
54506618
MB
6887 ;; If the range of read articles is a single range, then the
6888 ;; first unread article is the article after the last read
6889 ;; article. Sounds logical, doesn't it?
6890 (if (and (not (listp (cdr read)))
11abff8e 6891 (or (< (car read) bottom)
54506618
MB
6892 (progn (setq read (list read))
6893 nil)))
11abff8e 6894 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6895 ;; `read' is a list of ranges.
6896 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6897 (caar read)))
6898 1)
11abff8e 6899 (setq first bottom))
54506618
MB
6900 (while read
6901 (when first
6902 (push (cons first nlast) unread))
6903 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6904 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6905 (setq read (cdr read)))))
6906 ;; And add the last unread articles.
ba0226dd
MB
6907 (cond ((not (and first last))
6908 nil)
6909 ((< first last)
6910 (push (cons first last) unread))
6911 ((= first last)
6912 (push first unread)))
54506618
MB
6913 ;; Return the sequence of unread articles.
6914 (delq 0 (nreverse unread))))
6915
eec82323
LMI
6916;; Various summary commands
6917
6748645f
LMI
6918(defun gnus-summary-select-article-buffer ()
6919 "Reconfigure windows to show article buffer."
6920 (interactive)
6921 (if (not (gnus-buffer-live-p gnus-article-buffer))
6922 (error "There is no article buffer for this summary buffer")
6923 (gnus-configure-windows 'article)
6924 (select-window (get-buffer-window gnus-article-buffer))))
6925
eec82323
LMI
6926(defun gnus-summary-universal-argument (arg)
6927 "Perform any operation on all articles that are process/prefixed."
6928 (interactive "P")
eec82323
LMI
6929 (let ((articles (gnus-summary-work-articles arg))
6930 func article)
6931 (if (eq
6932 (setq
6933 func
6934 (key-binding
6935 (read-key-sequence
6936 (substitute-command-keys
16409b0b 6937 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6938 'undefined)
6939 (gnus-error 1 "Undefined key")
6940 (save-excursion
6941 (while articles
6942 (gnus-summary-goto-subject (setq article (pop articles)))
6943 (let (gnus-newsgroup-processable)
6944 (command-execute func))
6945 (gnus-summary-remove-process-mark article)))))
6946 (gnus-summary-position-point))
6947
6948(defun gnus-summary-toggle-truncation (&optional arg)
6949 "Toggle truncation of summary lines.
23f87bed 6950With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6951 (interactive "P")
6952 (setq truncate-lines
6953 (if (null arg) (not truncate-lines)
6954 (> (prefix-numeric-value arg) 0)))
6955 (redraw-display))
6956
23f87bed
MB
6957(defun gnus-summary-find-for-reselect ()
6958 "Return the number of an article to stay on across a reselect.
6959The current article is considered, then following articles, then previous
6960articles. An article is sought which is not cancelled and isn't a temporary
6961insertion from another group. If there's no such then return a dummy 0."
6962 (let (found)
6963 (dolist (rev '(nil t))
6964 (unless found ; don't demand the reverse list if we don't need it
6965 (let ((data (gnus-data-find-list
6966 (gnus-summary-article-number) (gnus-data-list rev))))
6967 (while (and data (not found))
6968 (if (and (< 0 (gnus-data-number (car data)))
6969 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6970 (setq found (gnus-data-number (car data))))
6971 (setq data (cdr data))))))
6972 (or found 0)))
6973
eec82323
LMI
6974(defun gnus-summary-reselect-current-group (&optional all rescan)
6975 "Exit and then reselect the current newsgroup.
6976The prefix argument ALL means to select all articles."
6977 (interactive "P")
eec82323
LMI
6978 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6979 (error "Ephemeral groups can't be reselected"))
23f87bed 6980 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6981 (group gnus-newsgroup-name))
6982 (setq gnus-newsgroup-begin nil)
23f87bed 6983 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6984 ;; We have to adjust the point of group mode buffer because
6985 ;; point was moved to the next unread newsgroup by exiting.
6986 (gnus-summary-jump-to-group group)
6987 (when rescan
6988 (save-excursion
6989 (gnus-group-get-new-news-this-group 1)))
6990 (gnus-group-read-group all t)
6991 (gnus-summary-goto-subject current-subject nil t)))
6992
6993(defun gnus-summary-rescan-group (&optional all)
6994 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6995 (interactive "P")
6996 (gnus-summary-reselect-current-group all t))
6997
6998(defun gnus-summary-update-info (&optional non-destructive)
6999 (save-excursion
7000 (let ((group gnus-newsgroup-name))
6748645f
LMI
7001 (when group
7002 (when gnus-newsgroup-kill-headers
7003 (setq gnus-newsgroup-killed
7004 (gnus-compress-sequence
23f87bed
MB
7005 (gnus-sorted-union
7006 (gnus-list-range-intersection
7007 gnus-newsgroup-unselected gnus-newsgroup-killed)
7008 gnus-newsgroup-unreads)
6748645f
LMI
7009 t)))
7010 (unless (listp (cdr gnus-newsgroup-killed))
7011 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
7012 (let ((headers gnus-newsgroup-headers))
7013 ;; Set the new ranges of read articles.
01c52d31 7014 (with-current-buffer gnus-group-buffer
6748645f
LMI
7015 (gnus-undo-force-boundary))
7016 (gnus-update-read-articles
23f87bed
MB
7017 group (gnus-sorted-union
7018 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
7019 ;; Set the current article marks.
7020 (let ((gnus-newsgroup-scored
7021 (if (and (not gnus-save-score)
7022 (not non-destructive))
7023 nil
7024 gnus-newsgroup-scored)))
7025 (save-excursion
7026 (gnus-update-marks)))
7027 ;; Do the cross-ref thing.
7028 (when gnus-use-cross-reference
7029 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7030 ;; Do not switch windows but change the buffer to work.
a8151ef7 7031 (set-buffer gnus-group-buffer)
6748645f
LMI
7032 (unless (gnus-ephemeral-group-p group)
7033 (gnus-group-update-group group)))))))
eec82323
LMI
7034
7035(defun gnus-summary-save-newsrc (&optional force)
7036 "Save the current number of read/marked articles in the dribble buffer.
7037The dribble buffer will then be saved.
7038If FORCE (the prefix), also save the .newsrc file(s)."
7039 (interactive "P")
7040 (gnus-summary-update-info t)
7041 (if force
7042 (gnus-save-newsrc-file)
7043 (gnus-dribble-save)))
7044
704f1663
GM
7045(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7046
23f87bed 7047(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7048 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7049`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7050 (interactive)
7051 (gnus-set-global-variables)
16409b0b 7052 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7053 (with-current-buffer gnus-article-buffer
16409b0b
GM
7054 (mm-destroy-parts gnus-article-mime-handles)
7055 ;; Set it to nil for safety reason.
7056 (setq gnus-article-mime-handle-alist nil)
7057 (setq gnus-article-mime-handles nil)))
eec82323 7058 (gnus-kill-save-kill-buffer)
6748645f 7059 (gnus-async-halt-prefetch)
eec82323
LMI
7060 (let* ((group gnus-newsgroup-name)
7061 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7062 (gnus-group-is-exiting-p t)
eec82323 7063 (mode major-mode)
23f87bed 7064 (group-point nil)
eec82323 7065 (buf (current-buffer)))
16409b0b
GM
7066 (unless quit-config
7067 ;; Do adaptive scoring, and possibly save score files.
7068 (when gnus-newsgroup-adaptive
7069 (gnus-score-adaptive))
7070 (when gnus-use-scoring
7071 (gnus-score-save)))
6748645f 7072 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7073 ;; If we have several article buffers, we kill them at exit.
7074 (unless gnus-single-article-buffer
01c52d31
MB
7075 (when (gnus-buffer-live-p gnus-article-buffer)
7076 (with-current-buffer gnus-article-buffer
7077 ;; Don't kill sticky article buffers
7078 (unless (eq major-mode 'gnus-sticky-article-mode)
7079 (gnus-kill-buffer gnus-article-buffer)
7080 (setq gnus-article-current nil))))
7081 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7082 (when gnus-use-cache
7083 (gnus-cache-possibly-remove-articles)
7084 (gnus-cache-save-buffers))
7085 (gnus-async-prefetch-remove-group group)
7086 (when gnus-suppress-duplicates
7087 (gnus-dup-enter-articles))
7088 (when gnus-use-trees
7089 (gnus-tree-close group))
16409b0b
GM
7090 (when gnus-use-cache
7091 (gnus-cache-write-active))
6748645f
LMI
7092 ;; Remove entries for this group.
7093 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7094 ;; Make all changes in this group permanent.
7095 (unless quit-config
6748645f 7096 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7097 (gnus-summary-update-info))
eec82323
LMI
7098 (gnus-close-group group)
7099 ;; Make sure where we were, and go to next newsgroup.
7100 (set-buffer gnus-group-buffer)
7101 (unless quit-config
7102 (gnus-group-jump-to-group group))
6748645f
LMI
7103 (gnus-run-hooks 'gnus-summary-exit-hook)
7104 (unless (or quit-config
01c52d31 7105 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7106 ;; If this group has disappeared from the summary
7107 ;; buffer, don't skip forwards.
7108 (not (string= group (gnus-group-group-name))))
eec82323 7109 (gnus-group-next-unread-group 1))
a8151ef7 7110 (setq group-point (point))
eec82323
LMI
7111 (if temporary
7112 nil ;Nothing to do.
eec82323
LMI
7113 (set-buffer buf)
7114 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7115 (progn
7116 (gnus-deaden-summary)
7117 (setq mode nil))
eec82323
LMI
7118 ;; We set all buffer-local variables to nil. It is unclear why
7119 ;; this is needed, but if we don't, buffer-local variables are
7120 ;; not garbage-collected, it seems. This would the lead to en
7121 ;; ever-growing Emacs.
7122 (gnus-summary-clear-local-variables)
23f87bed
MB
7123 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7124 (gnus-summary-clear-local-variables))
eec82323
LMI
7125 (when (get-buffer gnus-article-buffer)
7126 (bury-buffer gnus-article-buffer))
eec82323
LMI
7127 ;; Return to group mode buffer.
7128 (when (eq mode 'gnus-summary-mode)
7129 (gnus-kill-buffer buf)))
7130 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7131 (set-buffer gnus-group-buffer)
7132 (if quit-config
7133 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7134 (goto-char group-point)
7135 ;; If gnus-group-buffer is already displayed, make sure we also move
7136 ;; the cursor in the window that displays it.
7137 (let ((win (get-buffer-window (current-buffer) 0)))
7138 (if win (set-window-point win (point))))
d61c212b 7139 (unless leave-hidden
4e90f2b9 7140 (gnus-configure-windows 'group 'force)))
6748645f 7141 ;; Clear the current group name.
eec82323
LMI
7142 (unless quit-config
7143 (setq gnus-newsgroup-name nil)))))
7144
7145(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7146(defun gnus-summary-exit-no-update (&optional no-questions)
7147 "Quit reading current newsgroup without updating read article info."
7148 (interactive)
eec82323 7149 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7150 (gnus-group-is-exiting-p t)
7151 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7152 (quit-config (gnus-group-quit-config group)))
7153 (when (or no-questions
7154 gnus-expert-user
7155 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7156 (gnus-async-halt-prefetch)
23f87bed 7157 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7158 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7159 (with-current-buffer gnus-article-buffer
16409b0b
GM
7160 (mm-destroy-parts gnus-article-mime-handles)
7161 ;; Set it to nil for safety reason.
7162 (setq gnus-article-mime-handle-alist nil)
7163 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7164 ;; If we have several article buffers, we kill them at exit.
7165 (unless gnus-single-article-buffer
7166 (gnus-kill-buffer gnus-article-buffer)
7167 (gnus-kill-buffer gnus-original-article-buffer)
7168 (setq gnus-article-current nil))
7169 (if (not gnus-kill-summary-on-exit)
7170 (gnus-deaden-summary)
7171 (gnus-close-group group)
7172 (gnus-summary-clear-local-variables)
23f87bed
MB
7173 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7174 (gnus-summary-clear-local-variables))
7175 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7176 (unless gnus-single-article-buffer
7177 (setq gnus-article-current nil))
7178 (when gnus-use-trees
7179 (gnus-tree-close group))
7180 (gnus-async-prefetch-remove-group group)
7181 (when (get-buffer gnus-article-buffer)
7182 (bury-buffer gnus-article-buffer))
7183 ;; Return to the group buffer.
7184 (gnus-configure-windows 'group 'force)
7185 ;; Clear the current group name.
7186 (setq gnus-newsgroup-name nil)
23f87bed
MB
7187 (unless (gnus-ephemeral-group-p group)
7188 (gnus-group-update-group group))
eec82323
LMI
7189 (when (equal (gnus-group-group-name) group)
7190 (gnus-group-next-unread-group 1))
7191 (when quit-config
23f87bed 7192 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7193
7194(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7195 "Handle movement when leaving an ephemeral group.
7196The state which existed when entering the ephemeral is reset."
eec82323
LMI
7197 (if (not (buffer-name (car quit-config)))
7198 (gnus-configure-windows 'group 'force)
7199 (set-buffer (car quit-config))
7200 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7201 (gnus-set-global-variables))
7202 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7203 (save-current-buffer
23f87bed
MB
7204 ;; The `gnus-summary-buffer' variable may point
7205 ;; to the old summary buffer when using a single
7206 ;; article buffer.
7207 (unless (gnus-buffer-live-p gnus-summary-buffer)
7208 (set-buffer gnus-group-buffer))
7209 (set-buffer gnus-summary-buffer)
7210 (gnus-set-global-variables))))
eec82323 7211 (if (or (eq (cdr quit-config) 'article)
23f87bed 7212 (eq (cdr quit-config) 'pick))
01c52d31
MB
7213 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7214 (gnus-configure-windows 'pick 'force)
7215 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7216 (gnus-configure-windows (cdr quit-config) 'force))
7217 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7218 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7219 next-unread-noselect))
7220 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7221 'next-noselect)
7222 (gnus-summary-next-subject 1 nil t))
7223 ((eq gnus-auto-select-on-ephemeral-exit
7224 'next-unread-noselect)
7225 (gnus-summary-next-subject 1 t t))))
7226 ;; Hide the article buffer which displays the article different
7227 ;; from the one that the cursor points to in the summary buffer.
7228 (gnus-configure-windows 'summary 'force))
7229 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7230 (gnus-summary-next-subject 1))
7231 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7232 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7233 (gnus-summary-recenter)
7234 (gnus-summary-position-point))))
7235
7236;;; Dead summaries.
7237
bbf52f1e
SM
7238(defvar gnus-dead-summary-mode-map
7239 (let ((map (make-keymap)))
7240 (suppress-keymap map)
7241 (substitute-key-definition 'undefined 'gnus-summary-wake-up-the-dead map)
7242 (dolist (key '("\C-d" "\r" "\177" [delete]))
7243 (define-key map key 'gnus-summary-wake-up-the-dead))
7244 (dolist (key '("q" "Q"))
7245 (define-key map key 'bury-buffer))
7246 map))
7247
7248(define-minor-mode gnus-dead-summary-mode
eec82323 7249 "Minor mode for Gnus summary buffers."
bbf52f1e
SM
7250 :lighter " Dead" :keymap gnus-dead-summary-mode-map
7251 (unless (derived-mode-p 'gnus-summary-mode)
7252 (setq gnus-dead-summary-mode nil)))
eec82323
LMI
7253
7254(defun gnus-deaden-summary ()
7255 "Make the current summary buffer into a dead summary buffer."
7256 ;; Kill any previous dead summary buffer.
7257 (when (and gnus-dead-summary
7258 (buffer-name gnus-dead-summary))
01c52d31 7259 (with-current-buffer gnus-dead-summary
eec82323
LMI
7260 (when gnus-dead-summary-mode
7261 (kill-buffer (current-buffer)))))
7262 ;; Make this the current dead summary.
7263 (setq gnus-dead-summary (current-buffer))
7264 (gnus-dead-summary-mode 1)
7265 (let ((name (buffer-name)))
7266 (when (string-match "Summary" name)
7267 (rename-buffer
7268 (concat (substring name 0 (match-beginning 0)) "Dead "
7269 (substring name (match-beginning 0)))
16409b0b
GM
7270 t)
7271 (bury-buffer))))
eec82323
LMI
7272
7273(defun gnus-kill-or-deaden-summary (buffer)
7274 "Kill or deaden the summary BUFFER."
6748645f
LMI
7275 (save-excursion
7276 (when (and (buffer-name buffer)
7277 (not gnus-single-article-buffer))
01c52d31 7278 (with-current-buffer buffer
6748645f
LMI
7279 (gnus-kill-buffer gnus-article-buffer)
7280 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7281 (cond
7282 ;; Kill the buffer.
7283 (gnus-kill-summary-on-exit
7284 (when (and gnus-use-trees
7285 (gnus-buffer-exists-p buffer))
c7a91ce1 7286 (with-current-buffer buffer
23f87bed
MB
7287 (gnus-tree-close gnus-newsgroup-name)))
7288 (gnus-kill-buffer buffer))
7289 ;; Deaden the buffer.
7290 ((gnus-buffer-exists-p buffer)
c7a91ce1 7291 (with-current-buffer buffer
23f87bed 7292 (gnus-deaden-summary))))))
eec82323
LMI
7293
7294(defun gnus-summary-wake-up-the-dead (&rest args)
7295 "Wake up the dead summary buffer."
7296 (interactive)
7297 (gnus-dead-summary-mode -1)
7298 (let ((name (buffer-name)))
7299 (when (string-match "Dead " name)
7300 (rename-buffer
7301 (concat (substring name 0 (match-beginning 0))
7302 (substring name (match-end 0)))
7303 t)))
7304 (gnus-message 3 "This dead summary is now alive again"))
7305
7306;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7307(defun gnus-summary-fetch-faq (&optional faq-dir)
7308 "Fetch the FAQ for the current group.
7309If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7310in."
7311 (interactive
7312 (list
7313 (when current-prefix-arg
7314 (completing-read
8f688cb0 7315 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7316 (mapcar 'list
a8151ef7 7317 gnus-group-faq-directory))))))
eec82323
LMI
7318 (let (gnus-faq-buffer)
7319 (when (setq gnus-faq-buffer
7320 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7321 (gnus-configure-windows 'summary-faq))))
7322
7323;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7324(defun gnus-summary-describe-group (&optional force)
7325 "Describe the current newsgroup."
7326 (interactive "P")
7327 (gnus-group-describe-group force gnus-newsgroup-name))
7328
7329(defun gnus-summary-describe-briefly ()
7330 "Describe summary mode commands briefly."
7331 (interactive)
16409b0b 7332 (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
7333
7334;; Walking around group mode buffer from summary mode.
7335
7336(defun gnus-summary-next-group (&optional no-article target-group backward)
7337 "Exit current newsgroup and then select next unread newsgroup.
7338If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7339initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7340previous group instead."
7341 (interactive "P")
eec82323
LMI
7342 ;; Stop pre-fetching.
7343 (gnus-async-halt-prefetch)
7344 (let ((current-group gnus-newsgroup-name)
7345 (current-buffer (current-buffer))
7346 entered)
7347 ;; First we semi-exit this group to update Xrefs and all variables.
7348 ;; We can't do a real exit, because the window conf must remain
7349 ;; the same in case the user is prompted for info, and we don't
7350 ;; want the window conf to change before that...
7351 (gnus-summary-exit t)
7352 (while (not entered)
7353 ;; Then we find what group we are supposed to enter.
7354 (set-buffer gnus-group-buffer)
7355 (gnus-group-jump-to-group current-group)
7356 (setq target-group
7357 (or target-group
7358 (if (eq gnus-keep-same-level 'best)
7359 (gnus-summary-best-group gnus-newsgroup-name)
7360 (gnus-summary-search-group backward gnus-keep-same-level))))
7361 (if (not target-group)
7362 ;; There are no further groups, so we return to the group
7363 ;; buffer.
7364 (progn
7365 (gnus-message 5 "Returning to the group buffer")
7366 (setq entered t)
7367 (when (gnus-buffer-live-p current-buffer)
7368 (set-buffer current-buffer)
7369 (gnus-summary-exit))
6748645f 7370 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7371 ;; We try to enter the target group.
7372 (gnus-group-jump-to-group target-group)
7373 (let ((unreads (gnus-group-group-unread)))
7374 (if (and (or (eq t unreads)
7375 (and unreads (not (zerop unreads))))
23f87bed
MB
7376 (gnus-summary-read-group
7377 target-group nil no-article
7378 (and (buffer-name current-buffer) current-buffer)
7379 nil backward))
eec82323
LMI
7380 (setq entered t)
7381 (setq current-group target-group
7382 target-group nil)))))))
7383
7384(defun gnus-summary-prev-group (&optional no-article)
7385 "Exit current newsgroup and then select previous unread newsgroup.
7386If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7387 (interactive "P")
7388 (gnus-summary-next-group no-article nil t))
7389
7390;; Walking around summary lines.
7391
23f87bed
MB
7392(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7393 "Go to the first subject satisfying any non-nil constraint.
7394If UNREAD is non-nil, the article should be unread.
7395If UNDOWNLOADED is non-nil, the article should be undownloaded.
7396If UNSEEN is non-nil, the article should be unseen.
7397Returns the article selected or nil if there are no matching articles."
eec82323 7398 (interactive "P")
23f87bed
MB
7399 (cond
7400 ;; Empty summary.
7401 ((null gnus-newsgroup-data)
7402 (gnus-message 3 "No articles in the group")
7403 nil)
7404 ;; Pick the first article.
7405 ((not (or unread undownloaded unseen))
7406 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7407 (gnus-data-number (car gnus-newsgroup-data)))
7408 ;; Find the first unread article.
7409 (t
7410 (let ((data gnus-newsgroup-data))
7411 (while (and data
7412 (let ((num (gnus-data-number (car data))))
7413 (or (memq num gnus-newsgroup-unfetched)
7414 (not (or (and unread
7415 (memq num gnus-newsgroup-unreads))
7416 (and undownloaded
7417 (memq num gnus-newsgroup-undownloaded))
7418 (and unseen
7419 (memq num gnus-newsgroup-unseen)))))))
7420 (setq data (cdr data)))
7421 (prog1
7422 (if data
7423 (progn
7424 (goto-char (gnus-data-pos (car data)))
7425 (gnus-data-number (car data)))
7426 (gnus-message 3 "No more%s articles"
7427 (let* ((r (when unread " unread"))
7428 (d (when undownloaded " undownloaded"))
7429 (s (when unseen " unseen"))
7430 (l (delq nil (list r d s))))
7431 (cond ((= 3 (length l))
7432 (concat r "," d ", or" s))
7433 ((= 2 (length l))
7434 (concat (car l) ", or" (cadr l)))
7435 ((= 1 (length l))
7436 (car l))
7437 (t
7438 ""))))
7439 nil
7440 )
7441 (gnus-summary-position-point))))))
eec82323
LMI
7442
7443(defun gnus-summary-next-subject (n &optional unread dont-display)
7444 "Go to next N'th summary line.
7445If N is negative, go to the previous N'th subject line.
7446If UNREAD is non-nil, only unread articles are selected.
7447The difference between N and the actual number of steps taken is
7448returned."
7449 (interactive "p")
7450 (let ((backward (< n 0))
7451 (n (abs n)))
7452 (while (and (> n 0)
7453 (if backward
7454 (gnus-summary-find-prev unread)
7455 (gnus-summary-find-next unread)))
16409b0b
GM
7456 (unless (zerop (setq n (1- n)))
7457 (gnus-summary-show-thread)))
eec82323
LMI
7458 (when (/= 0 n)
7459 (gnus-message 7 "No more%s articles"
7460 (if unread " unread" "")))
7461 (unless dont-display
7462 (gnus-summary-recenter)
7463 (gnus-summary-position-point))
7464 n))
7465
7466(defun gnus-summary-next-unread-subject (n)
7467 "Go to next N'th unread summary line."
7468 (interactive "p")
7469 (gnus-summary-next-subject n t))
7470
7471(defun gnus-summary-prev-subject (n &optional unread)
7472 "Go to previous N'th summary line.
7473If optional argument UNREAD is non-nil, only unread article is selected."
7474 (interactive "p")
7475 (gnus-summary-next-subject (- n) unread))
7476
7477(defun gnus-summary-prev-unread-subject (n)
7478 "Go to previous N'th unread summary line."
7479 (interactive "p")
7480 (gnus-summary-next-subject (- n) t))
7481
23f87bed
MB
7482(defun gnus-summary-goto-subjects (articles)
7483 "Insert the subject header for ARTICLES in the current buffer."
7484 (save-excursion
7485 (dolist (article articles)
7486 (gnus-summary-goto-subject article t)))
7487 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7488 (gnus-summary-position-point))
132cf96d 7489
eec82323 7490(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7491 "Go to the subject line of ARTICLE.
eec82323
LMI
7492If FORCE, also allow jumping to articles not currently shown."
7493 (interactive "nArticle number: ")
23f87bed
MB
7494 (unless (numberp article)
7495 (error "Article %s is not a number" article))
eec82323
LMI
7496 (let ((b (point))
7497 (data (gnus-data-find article)))
7498 ;; We read in the article if we have to.
7499 (and (not data)
7500 force
6748645f
LMI
7501 (gnus-summary-insert-subject
7502 article
7503 (if (or (numberp force) (vectorp force)) force)
7504 t)
eec82323
LMI
7505 (setq data (gnus-data-find article)))
7506 (goto-char b)
7507 (if (not data)
7508 (progn
7509 (unless silent
7510 (gnus-message 3 "Can't find article %d" article))
7511 nil)
23f87bed
MB
7512 (let ((pt (gnus-data-pos data)))
7513 (goto-char pt)
7514 (gnus-summary-set-article-display-arrow pt))
6748645f 7515 (gnus-summary-position-point)
eec82323
LMI
7516 article)))
7517
7518;; Walking around summary lines with displaying articles.
7519
7520(defun gnus-summary-expand-window (&optional arg)
7521 "Make the summary buffer take up the entire Emacs frame.
7522Given a prefix, will force an `article' buffer configuration."
7523 (interactive "P")
eec82323
LMI
7524 (if arg
7525 (gnus-configure-windows 'article 'force)
7526 (gnus-configure-windows 'summary 'force)))
7527
7528(defun gnus-summary-display-article (article &optional all-header)
7529 "Display ARTICLE in article buffer."
01c52d31
MB
7530 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7531 (with-current-buffer gnus-article-buffer
7532 (eq major-mode 'gnus-article-mode)))
7533 (gnus-article-setup-buffer))
eec82323 7534 (gnus-set-global-variables)
01c52d31
MB
7535 (with-current-buffer gnus-article-buffer
7536 (setq gnus-article-charset gnus-newsgroup-charset)
7537 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7538 (mm-enable-multibyte))
eec82323
LMI
7539 (if (null article)
7540 nil
7541 (prog1
7542 (if gnus-summary-display-article-function
7543 (funcall gnus-summary-display-article-function article all-header)
7544 (gnus-article-prepare article all-header))
6748645f 7545 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7546 (when (and gnus-current-article
7547 (not (zerop gnus-current-article)))
7548 (gnus-summary-goto-subject gnus-current-article))
7549 (gnus-summary-recenter)
7550 (when (and gnus-use-trees gnus-show-threads)
7551 (gnus-possibly-generate-tree article)
7552 (gnus-highlight-selected-tree article))
7553 ;; Successfully display article.
7554 (gnus-article-set-window-start
7555 (cdr (assq article gnus-newsgroup-bookmarks))))))
7556
7557(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7558 "Select the current article.
7559If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7560non-nil, the article will be re-fetched even if it already present in
7561the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7562be displayed."
7563 ;; Make sure we are in the summary buffer to work around bbdb bug.
7564 (unless (eq major-mode 'gnus-summary-mode)
7565 (set-buffer gnus-summary-buffer))
7566 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7567 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7568 gnus-summary-display-article-function)
eec82323
LMI
7569 (and (not pseudo)
7570 (gnus-summary-article-pseudo-p article)
a8151ef7 7571 (error "This is a pseudo-article"))
c7a91ce1 7572 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7573 (if (or (and gnus-single-article-buffer
7574 (or (null gnus-current-article)
7575 (null gnus-article-current)
7576 (null (get-buffer gnus-article-buffer))
7577 (not (eq article (cdr gnus-article-current)))
7578 (not (equal (car gnus-article-current)
7579 gnus-newsgroup-name))))
7580 (and (not gnus-single-article-buffer)
7581 (or (null gnus-current-article)
7582 (not (eq gnus-current-article article))))
7583 force)
7584 ;; The requested article is different from the current article.
7585 (progn
16409b0b
GM
7586 (gnus-summary-display-article article all-headers)
7587 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7588 (with-current-buffer gnus-article-buffer
16409b0b 7589 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7590 (mm-disable-multibyte))))
16409b0b
GM
7591 (gnus-article-set-window-start
7592 (cdr (assq article gnus-newsgroup-bookmarks)))
7593 article)
16409b0b 7594 'old))))
eec82323 7595
23f87bed
MB
7596(defun gnus-summary-force-verify-and-decrypt ()
7597 "Display buttons for signed/encrypted parts and verify/decrypt them."
7598 (interactive)
7599 (let ((mm-verify-option 'known)
7600 (mm-decrypt-option 'known)
7601 (gnus-article-emulate-mime t)
7602 (gnus-buttonized-mime-types (append (list "multipart/signed"
7603 "multipart/encrypted")
7604 gnus-buttonized-mime-types)))
7605 (gnus-summary-select-article nil 'force)))
7606
eec82323
LMI
7607(defun gnus-summary-set-current-mark (&optional current-mark)
7608 "Obsolete function."
7609 nil)
7610
7611(defun gnus-summary-next-article (&optional unread subject backward push)
7612 "Select the next article.
7613If UNREAD, only unread articles are selected.
7614If SUBJECT, only articles with SUBJECT are selected.
7615If BACKWARD, the previous article is selected instead of the next."
7616 (interactive "P")
11e95b02
MB
7617 ;; Make sure we are in the summary buffer.
7618 (unless (eq major-mode 'gnus-summary-mode)
7619 (set-buffer gnus-summary-buffer))
eec82323
LMI
7620 (cond
7621 ;; Is there such an article?
7622 ((and (gnus-summary-search-forward unread subject backward)
7623 (or (gnus-summary-display-article (gnus-summary-article-number))
7624 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7625 (gnus-summary-position-point))
7626 ;; If not, we try the first unread, if that is wanted.
7627 ((and subject
7628 gnus-auto-select-same
7629 (gnus-summary-first-unread-article))
7630 (gnus-summary-position-point)
7631 (gnus-message 6 "Wrapped"))
7632 ;; Try to get next/previous article not displayed in this group.
7633 ((and gnus-auto-extend-newsgroup
7634 (not unread) (not subject))
7635 (gnus-summary-goto-article
7636 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7637 nil (count-lines (point-min) (point))))
eec82323
LMI
7638 ;; Go to next/previous group.
7639 (t
7640 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7641 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7642 (let ((cmd (if (featurep 'xemacs)
7643 last-command-char
7644 last-command-event))
eec82323 7645 (point
01c52d31 7646 (with-current-buffer gnus-group-buffer
eec82323
LMI
7647 (point)))
7648 (group
7649 (if (eq gnus-keep-same-level 'best)
7650 (gnus-summary-best-group gnus-newsgroup-name)
7651 (gnus-summary-search-group backward gnus-keep-same-level))))
7652 ;; For some reason, the group window gets selected. We change
7653 ;; it back.
7654 (select-window (get-buffer-window (current-buffer)))
7655 ;; Select next unread newsgroup automagically.
7656 (cond
7657 ((or (not gnus-auto-select-next)
7658 (not cmd))
7659 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7660 ((or (eq gnus-auto-select-next 'quietly)
7661 (and (eq gnus-auto-select-next 'slightly-quietly)
7662 push)
7663 (and (eq gnus-auto-select-next 'almost-quietly)
7664 (gnus-summary-last-article-p)))
7665 ;; Select quietly.
7666 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7667 (gnus-summary-exit)
7668 (gnus-message 7 "No more%s articles (%s)..."
7669 (if unread " unread" "")
7670 (if group (concat "selecting " group)
7671 "exiting"))
7672 (gnus-summary-next-group nil group backward)))
7673 (t
7674 (when (gnus-key-press-event-p last-input-event)
7675 (gnus-summary-walk-group-buffer
7676 gnus-newsgroup-name cmd unread backward point))))))))
7677
7678(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7679 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7680 (?\C-p (gnus-group-prev-unread-group 1))))
7681 (cursor-in-echo-area t)
23f87bed 7682 keve key group ended prompt)
c7a91ce1 7683 (with-current-buffer gnus-group-buffer
eec82323
LMI
7684 (goto-char start)
7685 (setq group
7686 (if (eq gnus-keep-same-level 'best)
7687 (gnus-summary-best-group gnus-newsgroup-name)
7688 (gnus-summary-search-group backward gnus-keep-same-level))))
7689 (while (not ended)
23f87bed
MB
7690 (setq prompt
7691 (format
7692 "No more%s articles%s " (if unread " unread" "")
7693 (if (and group
7694 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7695 (format " (Type %s for %s [%s])"
91472578
MB
7696 (single-key-description cmd)
7697 (gnus-group-decoded-name group)
01c52d31 7698 (gnus-group-unread group))
23f87bed
MB
7699 (format " (Type %s to exit %s)"
7700 (single-key-description cmd)
91472578 7701 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7702 ;; Confirm auto selection.
23f87bed
MB
7703 (setq key (car (setq keve (gnus-read-event-char prompt)))
7704 ended t)
eec82323
LMI
7705 (cond
7706 ((assq key keystrokes)
7707 (let ((obuf (current-buffer)))
7708 (switch-to-buffer gnus-group-buffer)
7709 (when group
7710 (gnus-group-jump-to-group group))
7711 (eval (cadr (assq key keystrokes)))
7712 (setq group (gnus-group-group-name))
7713 (switch-to-buffer obuf))
7714 (setq ended nil))
7715 ((equal key cmd)
7716 (if (or (not group)
7717 (gnus-ephemeral-group-p gnus-newsgroup-name))
7718 (gnus-summary-exit)
7719 (gnus-summary-next-group nil group backward)))
7720 (t
7721 (push (cdr keve) unread-command-events))))))
7722
7723(defun gnus-summary-next-unread-article ()
7724 "Select unread article after current one."
7725 (interactive)
7726 (gnus-summary-next-article
7727 (or (not (eq gnus-summary-goto-unread 'never))
7728 (gnus-summary-last-article-p (gnus-summary-article-number)))
7729 (and gnus-auto-select-same
7730 (gnus-summary-article-subject))))
7731
7732(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7733 "Select the article before the current one.
eec82323
LMI
7734If UNREAD is non-nil, only unread articles are selected."
7735 (interactive "P")
7736 (gnus-summary-next-article unread subject t))
7737
7738(defun gnus-summary-prev-unread-article ()
7739 "Select unread article before current one."
7740 (interactive)
7741 (gnus-summary-prev-article
7742 (or (not (eq gnus-summary-goto-unread 'never))
7743 (gnus-summary-first-article-p (gnus-summary-article-number)))
7744 (and gnus-auto-select-same
7745 (gnus-summary-article-subject))))
7746
23f87bed 7747(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7748 "Show next page of the selected article.
7749If at the end of the current article, select the next article.
7750LINES says how many lines should be scrolled up.
7751
7752If CIRCULAR is non-nil, go to the start of the article instead of
7753selecting the next article when reaching the end of the current
23f87bed
MB
7754article.
7755
7756If STOP is non-nil, just stop when reaching the end of the message.
7757
7758Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7759 (interactive "P")
7760 (setq gnus-summary-buffer (current-buffer))
7761 (gnus-set-global-variables)
7762 (let ((article (gnus-summary-article-number))
7763 (article-window (get-buffer-window gnus-article-buffer t))
7764 endp)
6748645f
LMI
7765 ;; If the buffer is empty, we have no article.
7766 (unless article
7767 (error "No article to select"))
eec82323
LMI
7768 (gnus-configure-windows 'article)
7769 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7770 (if (and (eq gnus-summary-goto-unread 'never)
7771 (not (gnus-summary-last-article-p article)))
7772 (gnus-summary-next-article)
7773 (gnus-summary-next-unread-article))
7774 (if (or (null gnus-current-article)
7775 (null gnus-article-current)
7776 (/= article (cdr gnus-article-current))
7777 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7778 ;; Selected subject is different from current article's.
7779 (gnus-summary-display-article article)
7780 (when article-window
7781 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7782 (setq endp (or (gnus-article-next-page lines)
7783 (gnus-article-only-boring-p))))
eec82323 7784 (when endp
b1992461 7785 (cond ((or stop gnus-summary-stop-at-end-of-message)
23f87bed
MB
7786 (gnus-message 3 "End of message"))
7787 (circular
eec82323
LMI
7788 (gnus-summary-beginning-of-article))
7789 (lines
7790 (gnus-message 3 "End of message"))
7791 ((null lines)
7792 (if (and (eq gnus-summary-goto-unread 'never)
7793 (not (gnus-summary-last-article-p article)))
7794 (gnus-summary-next-article)
7795 (gnus-summary-next-unread-article))))))))
7796 (gnus-summary-recenter)
7797 (gnus-summary-position-point)))
7798
7799(defun gnus-summary-prev-page (&optional lines move)
7800 "Show previous page of selected article.
7801Argument LINES specifies lines to be scrolled down.
7802If MOVE, move to the previous unread article if point is at
7803the beginning of the buffer."
7804 (interactive "P")
eec82323
LMI
7805 (let ((article (gnus-summary-article-number))
7806 (article-window (get-buffer-window gnus-article-buffer t))
7807 endp)
7808 (gnus-configure-windows 'article)
7809 (if (or (null gnus-current-article)
7810 (null gnus-article-current)
7811 (/= article (cdr gnus-article-current))
7812 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7813 ;; Selected subject is different from current article's.
7814 (gnus-summary-display-article article)
7815 (gnus-summary-recenter)
7816 (when article-window
7817 (gnus-eval-in-buffer-window gnus-article-buffer
7818 (setq endp (gnus-article-prev-page lines)))
7819 (when (and move endp)
7820 (cond (lines
7821 (gnus-message 3 "Beginning of message"))
7822 ((null lines)
7823 (if (and (eq gnus-summary-goto-unread 'never)
7824 (not (gnus-summary-first-article-p article)))
7825 (gnus-summary-prev-article)
7826 (gnus-summary-prev-unread-article))))))))
7827 (gnus-summary-position-point))
7828
7829(defun gnus-summary-prev-page-or-article (&optional lines)
7830 "Show previous page of selected article.
7831Argument LINES specifies lines to be scrolled down.
7832If at the beginning of the article, go to the next article."
7833 (interactive "P")
7834 (gnus-summary-prev-page lines t))
7835
7836(defun gnus-summary-scroll-up (lines)
7837 "Scroll up (or down) one line current article.
7838Argument LINES specifies lines to be scrolled up (or down if negative)."
7839 (interactive "p")
eec82323
LMI
7840 (gnus-configure-windows 'article)
7841 (gnus-summary-show-thread)
7842 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7843 (gnus-eval-in-buffer-window gnus-article-buffer
7844 (cond ((> lines 0)
7845 (when (gnus-article-next-page lines)
7846 (gnus-message 3 "End of message")))
7847 ((< lines 0)
7848 (gnus-article-prev-page (- lines))))))
7849 (gnus-summary-recenter)
7850 (gnus-summary-position-point))
7851
6748645f
LMI
7852(defun gnus-summary-scroll-down (lines)
7853 "Scroll down (or up) one line current article.
7854Argument LINES specifies lines to be scrolled down (or up if negative)."
7855 (interactive "p")
7856 (gnus-summary-scroll-up (- lines)))
7857
eec82323
LMI
7858(defun gnus-summary-next-same-subject ()
7859 "Select next article which has the same subject as current one."
7860 (interactive)
eec82323
LMI
7861 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7862
7863(defun gnus-summary-prev-same-subject ()
7864 "Select previous article which has the same subject as current one."
7865 (interactive)
eec82323
LMI
7866 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7867
7868(defun gnus-summary-next-unread-same-subject ()
7869 "Select next unread article which has the same subject as current one."
7870 (interactive)
eec82323
LMI
7871 (gnus-summary-next-article t (gnus-summary-article-subject)))
7872
7873(defun gnus-summary-prev-unread-same-subject ()
7874 "Select previous unread article which has the same subject as current one."
7875 (interactive)
eec82323
LMI
7876 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7877
7878(defun gnus-summary-first-unread-article ()
7879 "Select the first unread article.
7880Return nil if there are no unread articles."
7881 (interactive)
eec82323
LMI
7882 (prog1
7883 (when (gnus-summary-first-subject t)
7884 (gnus-summary-show-thread)
7885 (gnus-summary-first-subject t)
7886 (gnus-summary-display-article (gnus-summary-article-number)))
7887 (gnus-summary-position-point)))
7888
16409b0b
GM
7889(defun gnus-summary-first-unread-subject ()
7890 "Place the point on the subject line of the first unread article.
7891Return nil if there are no unread articles."
7892 (interactive)
7893 (prog1
7894 (when (gnus-summary-first-subject t)
7895 (gnus-summary-show-thread)
7896 (gnus-summary-first-subject t))
7897 (gnus-summary-position-point)))
7898
23f87bed
MB
7899(defun gnus-summary-first-unseen-subject ()
7900 "Place the point on the subject line of the first unseen article.
7901Return nil if there are no unseen articles."
7902 (interactive)
7903 (prog1
7904 (when (gnus-summary-first-subject nil nil t)
7905 (gnus-summary-show-thread)
7906 (gnus-summary-first-subject nil nil t))
7907 (gnus-summary-position-point)))
7908
7909(defun gnus-summary-first-unseen-or-unread-subject ()
7910 "Place the point on the subject line of the first unseen article or,
7911if all article have been seen, on the subject line of the first unread
7912article."
7913 (interactive)
7914 (prog1
7915 (unless (when (gnus-summary-first-subject nil nil t)
7916 (gnus-summary-show-thread)
7917 (gnus-summary-first-subject nil nil t))
7918 (when (gnus-summary-first-subject t)
7919 (gnus-summary-show-thread)
7920 (gnus-summary-first-subject t)))
7921 (gnus-summary-position-point)))
7922
eec82323
LMI
7923(defun gnus-summary-first-article ()
7924 "Select the first article.
7925Return nil if there are no articles."
7926 (interactive)
eec82323
LMI
7927 (prog1
7928 (when (gnus-summary-first-subject)
16409b0b
GM
7929 (gnus-summary-show-thread)
7930 (gnus-summary-first-subject)
7931 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7932 (gnus-summary-position-point)))
7933
23f87bed
MB
7934(defun gnus-summary-best-unread-article (&optional arg)
7935 "Select the unread article with the highest score.
7936If given a prefix argument, select the next unread article that has a
7937score higher than the default score."
7938 (interactive "P")
7939 (let ((article (if arg
7940 (gnus-summary-better-unread-subject)
7941 (gnus-summary-best-unread-subject))))
7942 (if article
7943 (gnus-summary-goto-article article)
7944 (error "No unread articles"))))
7945
7946(defun gnus-summary-best-unread-subject ()
7947 "Select the unread subject with the highest score."
eec82323 7948 (interactive)
eec82323
LMI
7949 (let ((best -1000000)
7950 (data gnus-newsgroup-data)
7951 article score)
7952 (while data
7953 (and (gnus-data-unread-p (car data))
7954 (> (setq score
7955 (gnus-summary-article-score (gnus-data-number (car data))))
7956 best)
7957 (setq best score
7958 article (gnus-data-number (car data))))
7959 (setq data (cdr data)))
23f87bed
MB
7960 (when article
7961 (gnus-summary-goto-subject article))
7962 (gnus-summary-position-point)
7963 article))
7964
7965(defun gnus-summary-better-unread-subject ()
7966 "Select the first unread subject that has a score over the default score."
7967 (interactive)
7968 (let ((data gnus-newsgroup-data)
7969 article score)
7970 (while (and (setq article (gnus-data-number (car data)))
7971 (or (gnus-data-read-p (car data))
7972 (not (> (gnus-summary-article-score article)
7973 gnus-summary-default-score))))
7974 (setq data (cdr data)))
7975 (when article
7976 (gnus-summary-goto-subject article))
7977 (gnus-summary-position-point)
7978 article))
eec82323
LMI
7979
7980(defun gnus-summary-last-subject ()
7981 "Go to the last displayed subject line in the group."
7982 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7983 (when article
7984 (gnus-summary-goto-subject article))))
7985
7986(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7987 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7988If ALL-HEADERS is non-nil, no header lines are hidden.
7989If FORCE, go to the article even if it isn't displayed. If FORCE
7990is a number, it is the line the article is to be displayed on."
eec82323
LMI
7991 (interactive
7992 (list
6748645f
LMI
7993 (completing-read
7994 "Article number or Message-ID: "
7995 (mapcar (lambda (number) (list (int-to-string number)))
7996 gnus-newsgroup-limit))
eec82323
LMI
7997 current-prefix-arg
7998 t))
7999 (prog1
6748645f 8000 (if (and (stringp article)
23f87bed 8001 (string-match "@\\|%40" article))
6748645f
LMI
8002 (gnus-summary-refer-article article)
8003 (when (stringp article)
8004 (setq article (string-to-number article)))
8005 (if (gnus-summary-goto-subject article force)
8006 (gnus-summary-display-article article all-headers)
8007 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
8008 (gnus-summary-position-point)))
8009
8010(defun gnus-summary-goto-last-article ()
8011 "Go to the previously read article."
8012 (interactive)
8013 (prog1
8014 (when gnus-last-article
6748645f 8015 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8016 (gnus-summary-position-point)))
8017
8018(defun gnus-summary-pop-article (number)
8019 "Pop one article off the history and go to the previous.
8020NUMBER articles will be popped off."
8021 (interactive "p")
8022 (let (to)
8023 (setq gnus-newsgroup-history
8024 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8025 (if to
6748645f 8026 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8027 (error "Article history empty")))
8028 (gnus-summary-position-point))
8029
8030;; Summary commands and functions for limiting the summary buffer.
8031
8032(defun gnus-summary-limit-to-articles (n)
8033 "Limit the summary buffer to the next N articles.
8034If not given a prefix, use the process marked articles instead."
8035 (interactive "P")
eec82323
LMI
8036 (prog1
8037 (let ((articles (gnus-summary-work-articles n)))
8038 (setq gnus-newsgroup-processable nil)
8039 (gnus-summary-limit articles))
8040 (gnus-summary-position-point)))
8041
8042(defun gnus-summary-pop-limit (&optional total)
8043 "Restore the previous limit.
8044If given a prefix, remove all limits."
8045 (interactive "P")
eec82323
LMI
8046 (when total
8047 (setq gnus-newsgroup-limits
8048 (list (mapcar (lambda (h) (mail-header-number h))
8049 gnus-newsgroup-headers))))
8050 (unless gnus-newsgroup-limits
8051 (error "No limit to pop"))
8052 (prog1
8053 (gnus-summary-limit nil 'pop)
8054 (gnus-summary-position-point)))
8055
47b63dfa
SZ
8056(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8057 "Limit the summary buffer to articles that have subjects that match a regexp.
8058If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8059 (interactive
47b63dfa
SZ
8060 (list (read-string (if current-prefix-arg
8061 "Exclude subject (regexp): "
a1506d29 8062 "Limit to subject (regexp): "))
47b63dfa 8063 nil current-prefix-arg))
eec82323
LMI
8064 (unless header
8065 (setq header "subject"))
8066 (when (not (equal "" subject))
8067 (prog1
8068 (let ((articles (gnus-summary-find-matching
a1506d29 8069 (or header "subject") subject 'all nil nil
47b63dfa 8070 not-matching)))
eec82323
LMI
8071 (unless articles
8072 (error "Found no matches for \"%s\"" subject))
8073 (gnus-summary-limit articles))
8074 (gnus-summary-position-point))))
8075
ef6e0ec7 8076(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8077 "Limit the summary buffer to articles that have authors that match a regexp.
8078If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8079 (interactive
47b63dfa
SZ
8080 (list (read-string (if current-prefix-arg
8081 "Exclude author (regexp): "
a1506d29 8082 "Limit to author (regexp): "))
ef6e0ec7
SZ
8083 current-prefix-arg))
8084 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8085
01c52d31
MB
8086(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8087 "Limit the summary buffer to articles with the given RECIPIENT.
8088
8089If NOT-MATCHING, exclude RECIPIENT.
8090
8091To and Cc headers are checked. You need to include them in
8092`nnmail-extra-headers'."
8093 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8094 (interactive
8095 (list (read-string (format "%s recipient (regexp): "
8096 (if current-prefix-arg "Exclude" "Limit to")))
8097 current-prefix-arg))
8098 (when (not (equal "" recipient))
8099 (prog1 (let* ((to
8100 (if (memq 'To nnmail-extra-headers)
8101 (gnus-summary-find-matching
8102 (cons 'extra 'To) recipient 'all nil nil
8103 not-matching)
8104 (gnus-message
8105 1 "`To' isn't present in `nnmail-extra-headers'")
8106 (sit-for 1)
8107 nil))
8108 (cc
8109 (if (memq 'Cc nnmail-extra-headers)
8110 (gnus-summary-find-matching
8111 (cons 'extra 'Cc) recipient 'all nil nil
8112 not-matching)
8113 (gnus-message
8114 1 "`Cc' isn't present in `nnmail-extra-headers'")
8115 (sit-for 1)
8116 nil))
8117 (articles
8118 (if not-matching
8119 ;; We need the numbers that are in both lists:
8120 (mapcar (lambda (a)
8121 (and (memq a to) a))
8122 cc)
8123 (nconc to cc))))
8124 (unless articles
8125 (error "Found no matches for \"%s\"" recipient))
8126 (gnus-summary-limit articles))
8127 (gnus-summary-position-point))))
8128
8129(defun gnus-summary-limit-to-address (address &optional not-matching)
8130 "Limit the summary buffer to articles with the given ADDRESS.
8131
8132If NOT-MATCHING, exclude ADDRESS.
8133
8134To, Cc and From headers are checked. You need to include `To' and `Cc'
8135in `nnmail-extra-headers'."
8136 (interactive
8137 (list (read-string (format "%s address (regexp): "
8138 (if current-prefix-arg "Exclude" "Limit to")))
8139 current-prefix-arg))
8140 (when (not (equal "" address))
8141 (prog1 (let* ((to
8142 (if (memq 'To nnmail-extra-headers)
8143 (gnus-summary-find-matching
8144 (cons 'extra 'To) address 'all nil nil
8145 not-matching)
8146 (gnus-message
8147 1 "`To' isn't present in `nnmail-extra-headers'")
8148 (sit-for 1)
8149 t))
8150 (cc
8151 (if (memq 'Cc nnmail-extra-headers)
8152 (gnus-summary-find-matching
8153 (cons 'extra 'Cc) address 'all nil nil
8154 not-matching)
8155 (gnus-message
8156 1 "`Cc' isn't present in `nnmail-extra-headers'")
8157 (sit-for 1)
8158 t))
8159 (from
8160 (gnus-summary-find-matching "from" address
8161 'all nil nil not-matching))
8162 (articles
8163 (if not-matching
8164 ;; We need the numbers that are in all lists:
8165 (if (eq cc t)
8166 (if (eq to t)
8167 from
8168 (mapcar (lambda (a) (car (memq a from))) to))
8169 (if (eq to t)
8170 (mapcar (lambda (a) (car (memq a from))) cc)
8171 (mapcar (lambda (a) (car (memq a from)))
8172 (mapcar (lambda (a) (car (memq a to)))
8173 cc))))
8174 (nconc (if (eq to t) nil to)
8175 (if (eq cc t) nil cc)
8176 from))))
8177 (unless articles
8178 (error "Found no matches for \"%s\"" address))
8179 (gnus-summary-limit articles))
8180 (gnus-summary-position-point))))
8181
8182(defun gnus-summary-limit-strange-charsets-predicate (header)
765d4319
KY
8183 (when (fboundp 'char-charset)
8184 (let ((string (concat (mail-header-subject header)
8185 (mail-header-from header)))
8186 charset found)
8187 (dotimes (i (1- (length string)))
8188 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8189 (when (string-match "unicode\\|big\\|japanese" charset)
8190 (setq found t)))
8191 found)))
01c52d31
MB
8192
8193(defun gnus-summary-limit-to-predicate (predicate)
8194 "Limit to articles where PREDICATE returns non-nil.
8195PREDICATE will be called with the header structures of the
8196articles."
8197 (let ((articles nil)
8198 (case-fold-search t))
8199 (dolist (header gnus-newsgroup-headers)
8200 (when (funcall predicate header)
8201 (push (mail-header-number header) articles)))
8202 (gnus-summary-limit (nreverse articles))))
8203
eec82323
LMI
8204(defun gnus-summary-limit-to-age (age &optional younger-p)
8205 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8206If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8207articles that are younger than AGE days."
16409b0b
GM
8208 (interactive
8209 (let ((younger current-prefix-arg)
8210 (days-got nil)
8211 days)
8212 (while (not days-got)
8213 (setq days (if younger
23f87bed
MB
8214 (read-string "Limit to articles younger than (in days, older when negative): ")
8215 (read-string
8216 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8217 (when (> (length days) 0)
8218 (setq days (read days)))
8219 (if (numberp days)
23f87bed
MB
8220 (progn
8221 (setq days-got t)
01c52d31
MB
8222 (when (< days 0)
8223 (setq younger (not younger))
8224 (setq days (* days -1))))
16409b0b
GM
8225 (message "Please enter a number.")
8226 (sleep-for 1)))
8227 (list days younger)))
eec82323
LMI
8228 (prog1
8229 (let ((data gnus-newsgroup-data)
16409b0b 8230 (cutoff (days-to-time age))
eec82323
LMI
8231 articles d date is-younger)
8232 (while (setq d (pop data))
8233 (when (and (vectorp (gnus-data-header d))
8234 (setq date (mail-header-date (gnus-data-header d))))
16409b0b 8235 (setq is-younger (time-less-p
3d6e7a43 8236 (time-since (gnus-date-get-time date))
eec82323 8237 cutoff))
6748645f
LMI
8238 (when (if younger-p
8239 is-younger
8240 (not is-younger))
eec82323
LMI
8241 (push (gnus-data-number d) articles))))
8242 (gnus-summary-limit (nreverse articles)))
8243 (gnus-summary-position-point)))
8244
47b63dfa 8245(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8246 "Limit the summary buffer to articles that match an 'extra' header."
8247 (interactive
8248 (let ((header
8249 (intern
23f87bed 8250 (gnus-completing-read-with-default
16409b0b 8251 (symbol-name (car gnus-extra-headers))
47b63dfa 8252 (if current-prefix-arg
81df110a
RF
8253 "Exclude extra header"
8254 "Limit extra header")
16409b0b
GM
8255 (mapcar (lambda (x)
8256 (cons (symbol-name x) x))
8257 gnus-extra-headers)
8258 nil
8259 t))))
8260 (list header
a1506d29 8261 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8262 (if current-prefix-arg "Exclude" "Limit to")
8263 header))
8264 current-prefix-arg)))
16409b0b
GM
8265 (when (not (equal "" regexp))
8266 (prog1
8267 (let ((articles (gnus-summary-find-matching
a1506d29 8268 (cons 'extra header) regexp 'all nil nil
47b63dfa 8269 not-matching)))
16409b0b
GM
8270 (unless articles
8271 (error "Found no matches for \"%s\"" regexp))
8272 (gnus-summary-limit articles))
8273 (gnus-summary-position-point))))
8274
23f87bed
MB
8275(defun gnus-summary-limit-to-display-predicate ()
8276 "Limit the summary buffer to the predicated in the `display' group parameter."
8277 (interactive)
8278 (unless gnus-newsgroup-display
8279 (error "There is no `display' group parameter"))
8280 (let (articles)
8281 (dolist (number gnus-newsgroup-articles)
8282 (when (funcall gnus-newsgroup-display)
8283 (push number articles)))
8284 (gnus-summary-limit articles))
8285 (gnus-summary-position-point))
8286
eec82323
LMI
8287(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8288(make-obsolete
265ac10b 8289 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread "Emacs 20.4")
eec82323
LMI
8290
8291(defun gnus-summary-limit-to-unread (&optional all)
8292 "Limit the summary buffer to articles that are not marked as read.
8293If ALL is non-nil, limit strictly to unread articles."
8294 (interactive "P")
8295 (if all
8296 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8297 (gnus-summary-limit-to-marks
8298 ;; Concat all the marks that say that an article is read and have
8299 ;; those removed.
8300 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8301 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8302 gnus-low-score-mark gnus-expirable-mark
8303 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
c4d82de8 8304 gnus-duplicate-mark)
eec82323
LMI
8305 'reverse)))
8306
01c52d31
MB
8307(defun gnus-summary-limit-to-headers (match &optional reverse)
8308 "Limit the summary buffer to articles that have headers that match MATCH.
8309If REVERSE (the prefix), limit to articles that don't match."
8310 (interactive "sMatch headers (regexp): \nP")
8311 (gnus-summary-limit-to-bodies match reverse t))
8312
8313(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8314 "Limit the summary buffer to articles that have bodies that match MATCH.
8315If REVERSE (the prefix), limit to articles that don't match."
8316 (interactive "sMatch body (regexp): \nP")
8317 (let ((articles nil)
8318 (gnus-select-article-hook nil) ;Disable hook.
8319 (gnus-article-prepare-hook nil)
8320 (gnus-use-article-prefetch nil)
8321 (gnus-keep-backlog nil)
8322 (gnus-break-pages nil)
8323 (gnus-summary-display-arrow nil)
8324 (gnus-updated-mode-lines nil)
8325 (gnus-auto-center-summary nil)
8326 (gnus-display-mime-function nil))
8327 (dolist (data gnus-newsgroup-data)
8328 (let (gnus-mark-article-hook)
8329 (gnus-summary-select-article t t nil (gnus-data-number data)))
398a825b 8330 (with-current-buffer gnus-article-buffer
01c52d31
MB
8331 (article-goto-body)
8332 (let* ((case-fold-search t)
8333 (found (if headersp
8334 (re-search-backward match nil t)
8335 (re-search-forward match nil t))))
8336 (when (or (and found
8337 (not reverse))
8338 (and (not found)
8339 reverse))
8340 (push (gnus-data-number data) articles)))))
8341 (if (not articles)
8342 (message "No messages matched")
8343 (gnus-summary-limit articles)))
8344 (gnus-summary-position-point))
8345
8346(defun gnus-summary-limit-to-singletons (&optional threadsp)
8347 "Limit the summary buffer to articles that aren't part on any thread.
8348If THREADSP (the prefix), limit to articles that are in threads."
8349 (interactive "P")
8350 (let ((articles nil)
8351 thread-articles
8352 threads)
8353 (dolist (thread gnus-newsgroup-threads)
8354 (if (stringp (car thread))
8355 (dolist (thread (cdr thread))
8356 (push thread threads))
8357 (push thread threads)))
8358 (dolist (thread threads)
8359 (setq thread-articles (gnus-articles-in-thread thread))
8360 (when (or (and threadsp
8361 (> (length thread-articles) 1))
8362 (and (not threadsp)
8363 (= (length thread-articles) 1)))
8364 (setq articles (nconc thread-articles articles))))
8365 (if (not articles)
8366 (message "No messages matched")
8367 (gnus-summary-limit articles))
8368 (gnus-summary-position-point)))
8369
8370(defun gnus-summary-limit-to-replied (&optional unreplied)
8371 "Limit the summary buffer to replied articles.
8372If UNREPLIED (the prefix), limit to unreplied articles."
8373 (interactive "P")
8374 (if unreplied
8375 (gnus-summary-limit
8376 (gnus-set-difference gnus-newsgroup-articles
8377 gnus-newsgroup-replied))
8378 (gnus-summary-limit gnus-newsgroup-replied))
8379 (gnus-summary-position-point))
8380
eec82323
LMI
8381(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8382(make-obsolete 'gnus-summary-delete-marked-with
265ac10b 8383 'gnus-summary-limit-exclude-marks "Emacs 20.4")
eec82323
LMI
8384
8385(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8386 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8387If REVERSE, limit the summary buffer to articles that are marked
8388with MARKS. MARKS can either be a string of marks or a list of marks.
8389Returns how many articles were removed."
8390 (interactive "sMarks: ")
8391 (gnus-summary-limit-to-marks marks t))
8392
8393(defun gnus-summary-limit-to-marks (marks &optional reverse)
8394 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8395If REVERSE (the prefix), limit the summary buffer to articles that are
8396not marked with MARKS. MARKS can either be a string of marks or a
8397list of marks.
8398Returns how many articles were removed."
6748645f 8399 (interactive "sMarks: \nP")
eec82323
LMI
8400 (prog1
8401 (let ((data gnus-newsgroup-data)
8402 (marks (if (listp marks) marks
8403 (append marks nil))) ; Transform to list.
8404 articles)
8405 (while data
8406 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8407 (memq (gnus-data-mark (car data)) marks))
8408 (push (gnus-data-number (car data)) articles))
8409 (setq data (cdr data)))
8410 (gnus-summary-limit articles))
8411 (gnus-summary-position-point)))
8412
23f87bed 8413(defun gnus-summary-limit-to-score (score)
eec82323 8414 "Limit to articles with score at or above SCORE."
23f87bed 8415 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8416 (let ((data gnus-newsgroup-data)
8417 articles)
8418 (while data
8419 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8420 score)
8421 (push (gnus-data-number (car data)) articles))
8422 (setq data (cdr data)))
8423 (prog1
8424 (gnus-summary-limit articles)
8425 (gnus-summary-position-point))))
8426
23f87bed
MB
8427(defun gnus-summary-limit-to-unseen ()
8428 "Limit to unseen articles."
8429 (interactive)
8430 (prog1
8431 (gnus-summary-limit gnus-newsgroup-unseen)
8432 (gnus-summary-position-point)))
8433
6748645f 8434(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8435 "Display all the hidden articles that is in the thread with ID in it.
8436When called interactively, ID is the Message-ID of the current
8437article."
6748645f
LMI
8438 (interactive (list (mail-header-id (gnus-summary-article-header))))
8439 (let ((articles (gnus-articles-in-thread
8440 (gnus-id-to-thread (gnus-root-id id)))))
8441 (prog1
8442 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8443 (gnus-summary-limit-include-matching-articles
8444 "subject"
8445 (regexp-quote (gnus-simplify-subject-re
8446 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8447 (gnus-summary-position-point))))
8448
23f87bed
MB
8449(defun gnus-summary-limit-include-matching-articles (header regexp)
8450 "Display all the hidden articles that have HEADERs that match REGEXP."
8451 (interactive (list (read-string "Match on header: ")
8452 (read-string "Regexp: ")))
8453 (let ((articles (gnus-find-matching-articles header regexp)))
8454 (prog1
8455 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8456 (gnus-summary-position-point))))
8457
8458(defun gnus-summary-insert-dormant-articles ()
8459 "Insert all the dormant articles for this group into the current buffer."
8460 (interactive)
8461 (let ((gnus-verbose (max 6 gnus-verbose)))
8462 (if (not gnus-newsgroup-dormant)
db629244 8463 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8464 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8465
01c52d31
MB
8466(defun gnus-summary-insert-ticked-articles ()
8467 "Insert ticked articles for this group into the current buffer."
8468 (interactive)
8469 (let ((gnus-verbose (max 6 gnus-verbose)))
8470 (if (not gnus-newsgroup-marked)
8471 (gnus-message 3 "No ticked articles for this group")
8472 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8473
eec82323 8474(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8475 "Display all the hidden articles that are marked as dormant.
8476Note that this command only works on a subset of the articles currently
8477fetched for this group."
eec82323 8478 (interactive)
eec82323
LMI
8479 (unless gnus-newsgroup-dormant
8480 (error "There are no dormant articles in this group"))
8481 (prog1
8482 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8483 (gnus-summary-position-point)))
8484
8485(defun gnus-summary-limit-exclude-dormant ()
8486 "Hide all dormant articles."
8487 (interactive)
eec82323
LMI
8488 (prog1
8489 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8490 (gnus-summary-position-point)))
8491
8492(defun gnus-summary-limit-exclude-childless-dormant ()
8493 "Hide all dormant articles that have no children."
8494 (interactive)
eec82323
LMI
8495 (let ((data (gnus-data-list t))
8496 articles d children)
8497 ;; Find all articles that are either not dormant or have
8498 ;; children.
8499 (while (setq d (pop data))
8500 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8501 (and (setq children
8502 (gnus-article-children (gnus-data-number d)))
8503 (let (found)
8504 (while children
8505 (when (memq (car children) articles)
8506 (setq children nil
8507 found t))
8508 (pop children))
8509 found)))
8510 (push (gnus-data-number d) articles)))
8511 ;; Do the limiting.
8512 (prog1
8513 (gnus-summary-limit articles)
8514 (gnus-summary-position-point))))
8515
8516(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8517 "Mark all unread excluded articles as read.
8518If ALL, mark even excluded ticked and dormants as read."
8519 (interactive "P")
23f87bed
MB
8520 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8521 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8522 (sort
8523 (mapcar (lambda (h) (mail-header-number h))
8524 gnus-newsgroup-headers)
8525 '<)
23f87bed 8526 gnus-newsgroup-limit))
eec82323 8527 article)
6748645f 8528 (setq gnus-newsgroup-unreads
23f87bed
MB
8529 (gnus-sorted-intersection gnus-newsgroup-unreads
8530 gnus-newsgroup-limit))
eec82323
LMI
8531 (if all
8532 (setq gnus-newsgroup-dormant nil
8533 gnus-newsgroup-marked nil
8534 gnus-newsgroup-reads
8535 (nconc
8536 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8537 gnus-newsgroup-reads))
8538 (while (setq article (pop articles))
8539 (unless (or (memq article gnus-newsgroup-dormant)
8540 (memq article gnus-newsgroup-marked))
8541 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8542
8543(defun gnus-summary-limit (articles &optional pop)
8544 (if pop
8545 ;; We pop the previous limit off the stack and use that.
8546 (setq articles (car gnus-newsgroup-limits)
8547 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8548 ;; We use the new limit, so we push the old limit on the stack.
8549 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8550 ;; Set the limit.
8551 (setq gnus-newsgroup-limit articles)
8552 (let ((total (length gnus-newsgroup-data))
8553 (data (gnus-data-find-list (gnus-summary-article-number)))
8554 (gnus-summary-mark-below nil) ; Inhibit this.
8555 found)
8556 ;; This will do all the work of generating the new summary buffer
8557 ;; according to the new limit.
8558 (gnus-summary-prepare)
8559 ;; Hide any threads, possibly.
23f87bed 8560 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8561 ;; Try to return to the article you were at, or one in the
8562 ;; neighborhood.
8563 (when data
8564 ;; We try to find some article after the current one.
8565 (while data
8566 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8567 (setq data nil
8568 found t))
8569 (setq data (cdr data))))
8570 (unless found
8571 ;; If there is no data, that means that we were after the last
8572 ;; article. The same goes when we can't find any articles
8573 ;; after the current one.
8574 (goto-char (point-max))
8575 (gnus-summary-find-prev))
6748645f 8576 (gnus-set-mode-line 'summary)
eec82323
LMI
8577 ;; We return how many articles were removed from the summary
8578 ;; buffer as a result of the new limit.
8579 (- total (length gnus-newsgroup-data))))
8580
8581(defsubst gnus-invisible-cut-children (threads)
8582 (let ((num 0))
8583 (while threads
8584 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8585 (incf num))
8586 (pop threads))
8587 (< num 2)))
8588
8589(defsubst gnus-cut-thread (thread)
8590 "Go forwards in the thread until we find an article that we want to display."
8591 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8592 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8593 (numberp gnus-fetch-old-headers)
eec82323
LMI
8594 (eq gnus-build-sparse-threads 'some)
8595 (eq gnus-build-sparse-threads 'more))
8596 ;; Deal with old-fetched headers and sparse threads.
8597 (while (and
8598 thread
8599 (or
8600 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8601 (gnus-summary-article-ancient-p
8602 (mail-header-number (car thread))))
6748645f
LMI
8603 (if (or (<= (length (cdr thread)) 1)
8604 (eq gnus-fetch-old-headers 'invisible))
8605 (setq gnus-newsgroup-limit
8606 (delq (mail-header-number (car thread))
8607 gnus-newsgroup-limit)
8608 thread (cadr thread))
8609 (when (gnus-invisible-cut-children (cdr thread))
8610 (let ((th (cdr thread)))
8611 (while th
8612 (if (memq (mail-header-number (caar th))
a8151ef7 8613 gnus-newsgroup-limit)
6748645f
LMI
8614 (setq thread (car th)
8615 th nil)
8616 (setq th (cdr th))))))))))
eec82323
LMI
8617 thread)
8618
8619(defun gnus-cut-threads (threads)
23f87bed 8620 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8621 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8622 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8623 (numberp gnus-fetch-old-headers)
eec82323
LMI
8624 (eq gnus-build-sparse-threads 'some)
8625 (eq gnus-build-sparse-threads 'more))
8626 (let ((th threads))
8627 (while th
8628 (setcar th (gnus-cut-thread (car th)))
8629 (setq th (cdr th)))))
8630 ;; Remove nixed out threads.
8631 (delq nil threads))
8632
8633(defun gnus-summary-initial-limit (&optional show-if-empty)
8634 "Figure out what the initial limit is supposed to be on group entry.
8635This entails weeding out unwanted dormants, low-scored articles,
8636fetch-old-headers verbiage, and so on."
8637 ;; Most groups have nothing to remove.
f394fa25
MB
8638 (unless (or gnus-inhibit-limiting
8639 (and (null gnus-newsgroup-dormant)
8640 (eq gnus-newsgroup-display 'gnus-not-ignore)
8641 (not (eq gnus-fetch-old-headers 'some))
8642 (not (numberp gnus-fetch-old-headers))
8643 (not (eq gnus-fetch-old-headers 'invisible))
8644 (null gnus-summary-expunge-below)
8645 (not (eq gnus-build-sparse-threads 'some))
8646 (not (eq gnus-build-sparse-threads 'more))
8647 (null gnus-thread-expunge-below)
8648 (not gnus-use-nocem)))
eec82323
LMI
8649 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8650 (setq gnus-newsgroup-limit nil)
8651 (mapatoms
8652 (lambda (node)
8653 (unless (car (symbol-value node))
8654 ;; These threads have no parents -- they are roots.
8655 (let ((nodes (cdr (symbol-value node)))
8656 thread)
8657 (while nodes
8658 (if (and gnus-thread-expunge-below
8659 (< (gnus-thread-total-score (car nodes))
8660 gnus-thread-expunge-below))
8661 (gnus-expunge-thread (pop nodes))
8662 (setq thread (pop nodes))
8663 (gnus-summary-limit-children thread))))))
8664 gnus-newsgroup-dependencies)
8665 ;; If this limitation resulted in an empty group, we might
8666 ;; pop the previous limit and use it instead.
8667 (when (and (not gnus-newsgroup-limit)
8668 show-if-empty)
8669 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8670 gnus-newsgroup-limit))
8671
8672(defun gnus-summary-limit-children (thread)
8673 "Return 1 if this subthread is visible and 0 if it is not."
8674 ;; First we get the number of visible children to this thread. This
8675 ;; is done by recursing down the thread using this function, so this
8676 ;; will really go down to a leaf article first, before slowly
8677 ;; working its way up towards the root.
8678 (when thread
04b61ae9 8679 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8680 (children
eec82323
LMI
8681 (if (cdr thread)
8682 (apply '+ (mapcar 'gnus-summary-limit-children
8683 (cdr thread)))
8684 0))
8685 (number (mail-header-number (car thread)))
8686 score)
8687 (if (and
8688 (not (memq number gnus-newsgroup-marked))
8689 (or
8690 ;; If this article is dormant and has absolutely no visible
8691 ;; children, then this article isn't visible.
8692 (and (memq number gnus-newsgroup-dormant)
8693 (zerop children))
8694 ;; If this is "fetch-old-headered" and there is no
8695 ;; visible children, then we don't want this article.
16409b0b
GM
8696 (and (or (eq gnus-fetch-old-headers 'some)
8697 (numberp gnus-fetch-old-headers))
eec82323
LMI
8698 (gnus-summary-article-ancient-p number)
8699 (zerop children))
6748645f
LMI
8700 ;; If this is "fetch-old-headered" and `invisible', then
8701 ;; we don't want this article.
8702 (and (eq gnus-fetch-old-headers 'invisible)
8703 (gnus-summary-article-ancient-p number))
eec82323
LMI
8704 ;; If this is a sparsely inserted article with no children,
8705 ;; we don't want it.
8706 (and (eq gnus-build-sparse-threads 'some)
8707 (gnus-summary-article-sparse-p number)
8708 (zerop children))
8709 ;; If we use expunging, and this article is really
8710 ;; low-scored, then we don't want this article.
8711 (when (and gnus-summary-expunge-below
8712 (< (setq score
8713 (or (cdr (assq number gnus-newsgroup-scored))
8714 gnus-summary-default-score))
8715 gnus-summary-expunge-below))
8716 ;; We increase the expunge-tally here, but that has
8717 ;; nothing to do with the limits, really.
8718 (incf gnus-newsgroup-expunged-tally)
8719 ;; We also mark as read here, if that's wanted.
8720 (when (and gnus-summary-mark-below
8721 (< score gnus-summary-mark-below))
8722 (setq gnus-newsgroup-unreads
8723 (delq number gnus-newsgroup-unreads))
8724 (if gnus-newsgroup-auto-expire
8725 (push number gnus-newsgroup-expirable)
8726 (push (cons number gnus-low-score-mark)
8727 gnus-newsgroup-reads)))
8728 t)
23f87bed
MB
8729 ;; Do the `display' group parameter.
8730 (and gnus-newsgroup-display
8731 (not (funcall gnus-newsgroup-display)))
eec82323 8732 ;; Check NoCeM things.
01c52d31
MB
8733 (when (and gnus-use-nocem
8734 (gnus-nocem-unwanted-article-p
8735 (mail-header-id (car thread))))
8736 (setq gnus-newsgroup-unreads
8737 (delq number gnus-newsgroup-unreads))
8738 t)))
eec82323
LMI
8739 ;; Nope, invisible article.
8740 0
8741 ;; Ok, this article is to be visible, so we add it to the limit
8742 ;; and return 1.
8743 (push number gnus-newsgroup-limit)
8744 1))))
8745
8746(defun gnus-expunge-thread (thread)
8747 "Mark all articles in THREAD as read."
8748 (let* ((number (mail-header-number (car thread))))
8749 (incf gnus-newsgroup-expunged-tally)
8750 ;; We also mark as read here, if that's wanted.
8751 (setq gnus-newsgroup-unreads
8752 (delq number gnus-newsgroup-unreads))
8753 (if gnus-newsgroup-auto-expire
8754 (push number gnus-newsgroup-expirable)
8755 (push (cons number gnus-low-score-mark)
8756 gnus-newsgroup-reads)))
8757 ;; Go recursively through all subthreads.
8758 (mapcar 'gnus-expunge-thread (cdr thread)))
8759
8760;; Summary article oriented commands
8761
8762(defun gnus-summary-refer-parent-article (n)
8763 "Refer parent article N times.
8764If N is negative, go to ancestor -N instead.
8765The difference between N and the number of articles fetched is returned."
8766 (interactive "p")
eec82323
LMI
8767 (let ((skip 1)
8768 error header ref)
8769 (when (not (natnump n))
8770 (setq skip (abs n)
8771 n 1))
8772 (while (and (> n 0)
8773 (not error))
8774 (setq header (gnus-summary-article-header))
8775 (if (and (eq (mail-header-number header)
8776 (cdr gnus-article-current))
8777 (equal gnus-newsgroup-name
8778 (car gnus-article-current)))
8779 ;; If we try to find the parent of the currently
8780 ;; displayed article, then we take a look at the actual
8781 ;; References header, since this is slightly more
8782 ;; reliable than the References field we got from the
8783 ;; server.
c7a91ce1 8784 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8785 (nnheader-narrow-to-headers)
8786 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8787 (when (setq ref (message-fetch-field "in-reply-to"))
8788 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8789 (widen))
8790 (setq ref
8791 ;; It's not the current article, so we take a bet on
8792 ;; the value we got from the server.
8793 (mail-header-references header)))
8794 (if (and ref
8795 (not (equal ref "")))
8796 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8797 (gnus-message 1 "Couldn't find parent"))
8798 (gnus-message 1 "No references in article %d"
8799 (gnus-summary-article-number))
8800 (setq error t))
8801 (decf n))
8802 (gnus-summary-position-point)
8803 n))
8804
8805(defun gnus-summary-refer-references ()
8806 "Fetch all articles mentioned in the References header.
6748645f 8807Return the number of articles fetched."
eec82323 8808 (interactive)
eec82323
LMI
8809 (let ((ref (mail-header-references (gnus-summary-article-header)))
8810 (current (gnus-summary-article-number))
8811 (n 0))
8812 (if (or (not ref)
8813 (equal ref ""))
8814 (error "No References in the current article")
8815 ;; For each Message-ID in the References header...
8816 (while (string-match "<[^>]*>" ref)
8817 (incf n)
8818 ;; ... fetch that article.
8819 (gnus-summary-refer-article
8820 (prog1 (match-string 0 ref)
8821 (setq ref (substring ref (match-end 0))))))
8822 (gnus-summary-goto-subject current)
8823 (gnus-summary-position-point)
8824 n)))
8825
6748645f
LMI
8826(defun gnus-summary-refer-thread (&optional limit)
8827 "Fetch all articles in the current thread.
8828If LIMIT (the numerical prefix), fetch that many old headers instead
8829of what's specified by the `gnus-refer-thread-limit' variable."
8830 (interactive "P")
8831 (let ((id (mail-header-id (gnus-summary-article-header)))
8832 (limit (if limit (prefix-numeric-value limit)
8833 gnus-refer-thread-limit)))
6748645f
LMI
8834 (unless (eq gnus-fetch-old-headers 'invisible)
8835 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8836 ;; Retrieve the headers and read them in.
23f87bed
MB
8837 (if (eq (if (numberp limit)
8838 (gnus-retrieve-headers
8839 (list (min
8840 (+ (mail-header-number
8841 (gnus-summary-article-header))
8842 limit)
8843 gnus-newsgroup-end))
8844 gnus-newsgroup-name (* limit 2))
8845 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8846 ;; headers.
8847 (gnus-retrieve-headers (list gnus-newsgroup-end)
8848 gnus-newsgroup-name limit))
6748645f
LMI
8849 'nov)
8850 (gnus-build-all-threads)
23f87bed 8851 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8852 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8853 (gnus-summary-limit-include-thread id)))
8854
16409b0b
GM
8855(defun gnus-summary-refer-article (message-id)
8856 "Fetch an article specified by MESSAGE-ID."
8857 (interactive "sMessage-ID: ")
eec82323
LMI
8858 (when (and (stringp message-id)
8859 (not (zerop (length message-id))))
23f87bed 8860 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8861 ;; Construct the correct Message-ID if necessary.
8862 ;; Suggested by tale@pawl.rpi.edu.
8863 (unless (string-match "^<" message-id)
8864 (setq message-id (concat "<" message-id)))
8865 (unless (string-match ">$" message-id)
8866 (setq message-id (concat message-id ">")))
23f87bed
MB
8867 ;; People often post MIDs from URLs, so unhex it:
8868 (unless (string-match "@" message-id)
8869 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8870 (let* ((header (gnus-id-to-header message-id))
8871 (sparse (and header
8872 (gnus-summary-article-sparse-p
a8151ef7
LMI
8873 (mail-header-number header))
8874 (memq (mail-header-number header)
16409b0b
GM
8875 gnus-newsgroup-limit)))
8876 number)
6748645f
LMI
8877 (cond
8878 ;; If the article is present in the buffer we just go to it.
8879 ((and header
8880 (or (not (gnus-summary-article-sparse-p
8881 (mail-header-number header)))
8882 sparse))
8883 (prog1
8884 (gnus-summary-goto-article
8885 (mail-header-number header) nil t)
8886 (when sparse
8887 (gnus-summary-update-article (mail-header-number header)))))
8888 (t
16409b0b
GM
8889 ;; We fetch the article.
8890 (catch 'found
8891 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8892 (when (and (gnus-check-server gnus-override-method)
8893 ;; Fetch the header,
8894 (setq number (gnus-summary-insert-subject message-id)))
8895 ;; and display the article.
eec82323 8896 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8897 (throw 'found t)))
8898 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8899
8900(defun gnus-refer-article-methods ()
8f688cb0 8901 "Return a list of referable methods."
16409b0b
GM
8902 (cond
8903 ;; No method, so we default to current and native.
8904 ((null gnus-refer-article-method)
8905 (list gnus-current-select-method gnus-select-method))
8906 ;; Current.
8907 ((eq 'current gnus-refer-article-method)
8908 (list gnus-current-select-method))
8909 ;; List of select methods.
d4dfaa19
DL
8910 ((not (and (symbolp (car gnus-refer-article-method))
8911 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8912 (let (out)
8913 (dolist (method gnus-refer-article-method)
8914 (push (if (eq 'current method)
8915 gnus-current-select-method
8916 method)
8917 out))
8918 (nreverse out)))
8919 ;; One single select method.
8920 (t
8921 (list gnus-refer-article-method))))
6748645f
LMI
8922
8923(defun gnus-summary-edit-parameters ()
8924 "Edit the group parameters of the current group."
8925 (interactive)
8926 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8927
16409b0b
GM
8928(defun gnus-summary-customize-parameters ()
8929 "Customize the group parameters of the current group."
8930 (interactive)
8931 (gnus-group-customize gnus-newsgroup-name))
8932
eec82323
LMI
8933(defun gnus-summary-enter-digest-group (&optional force)
8934 "Enter an nndoc group based on the current article.
8935If FORCE, force a digest interpretation. If not, try
8936to guess what the document format is."
8937 (interactive "P")
eec82323 8938 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8939 (save-window-excursion
8940 (save-excursion
8941 (let (gnus-article-prepare-hook
8942 gnus-display-mime-function
8943 gnus-break-pages)
8944 (gnus-summary-select-article))))
eec82323
LMI
8945 (setq gnus-current-window-configuration conf)
8946 (let* ((name (format "%s-%d"
8947 (gnus-group-prefixed-name
8948 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8949 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8950 gnus-current-article)))
8951 (ogroup gnus-newsgroup-name)
8952 (params (append (gnus-info-params (gnus-get-info ogroup))
8953 (list (cons 'to-group ogroup))
23f87bed 8954 (list (cons 'parent-group ogroup))
eec82323
LMI
8955 (list (cons 'save-article-group ogroup))))
8956 (case-fold-search t)
8957 (buf (current-buffer))
16409b0b 8958 dig to-address)
c7a91ce1 8959 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8960 ;; Have the digest group inherit the main mail address of
8961 ;; the parent article.
23f87bed
MB
8962 (when (setq to-address (or (gnus-fetch-field "reply-to")
8963 (gnus-fetch-field "from")))
343d6628
MB
8964 (setq params
8965 (append
8966 (list (cons 'to-address
8967 (funcall gnus-decode-encoded-address-function
8968 to-address))))))
eec82323
LMI
8969 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8970 (insert-buffer-substring gnus-original-article-buffer)
8971 ;; Remove lines that may lead nndoc to misinterpret the
8972 ;; document type.
8973 (narrow-to-region
8974 (goto-char (point-min))
8975 (or (search-forward "\n\n" nil t) (point)))
8976 (goto-char (point-min))
16409b0b 8977 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8978 (widen))
8979 (unwind-protect
23f87bed 8980 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8981 (gnus-newsgroup-ephemeral-ignored-charsets
8982 gnus-newsgroup-ignored-charsets))
8983 (gnus-group-read-ephemeral-group
8984 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8985 (nndoc-article-type
23f87bed
MB
8986 ,(if force 'mbox 'guess)))
8987 t nil nil nil
8988 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8989 "ADAPT")))))
16409b0b 8990 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8991 (nconc (gnus-info-params (gnus-get-info name))
8992 params)
8993 ;; Couldn't select this doc group.
8994 (switch-to-buffer buf)
8995 (gnus-set-global-variables)
8996 (gnus-configure-windows 'summary)
8997 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8998 (kill-buffer dig)))))
8999
9000(defun gnus-summary-read-document (n)
9001 "Open a new group based on the current article(s).
9002This will allow you to read digests and other similar
9003documents as newsgroups.
9004Obeys the standard process/prefix convention."
9005 (interactive "P")
01c52d31 9006 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
9007 (params (append (gnus-info-params (gnus-get-info ogroup))
9008 (list (cons 'to-group ogroup))))
01c52d31
MB
9009 group egroup groups vgroup)
9010 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
9011 (setq group (format "%s-%d" gnus-newsgroup-name article))
9012 (gnus-summary-remove-process-mark article)
9013 (when (gnus-summary-display-article article)
398a825b 9014 (save-excursion ;;What for?
16409b0b 9015 (with-temp-buffer
eec82323
LMI
9016 (insert-buffer-substring gnus-original-article-buffer)
9017 ;; Remove some headers that may lead nndoc to make
9018 ;; the wrong guess.
9019 (message-narrow-to-head)
9020 (goto-char (point-min))
01c52d31 9021 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9022 (widen)
9023 (if (setq egroup
9024 (gnus-group-read-ephemeral-group
9025 group `(nndoc ,group (nndoc-address ,(current-buffer))
9026 (nndoc-article-type guess))
9027 t nil t))
9028 (progn
c7a91ce1 9029 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9030 (nconc (gnus-info-params (gnus-get-info egroup))
9031 params)
9032 (push egroup groups))
9033 ;; Couldn't select this doc group.
9034 (gnus-error 3 "Article couldn't be entered"))))))
9035 ;; Now we have selected all the documents.
9036 (cond
9037 ((not groups)
9038 (error "None of the articles could be interpreted as documents"))
9039 ((gnus-group-read-ephemeral-group
9040 (setq vgroup (format
9041 "nnvirtual:%s-%s" gnus-newsgroup-name
9042 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9043 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9044 t
9045 (cons (current-buffer) 'summary)))
9046 (t
9047 (error "Couldn't select virtual nndoc group")))))
9048
9049(defun gnus-summary-isearch-article (&optional regexp-p)
9050 "Do incremental search forward on the current article.
9051If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9052 (interactive "P")
eec82323
LMI
9053 (gnus-summary-select-article)
9054 (gnus-configure-windows 'article)
9055 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9056 (save-restriction
9057 (widen)
9058 (isearch-forward regexp-p))))
eec82323 9059
01c52d31
MB
9060(defun gnus-summary-repeat-search-article-forward ()
9061 "Repeat the previous search forwards."
9062 (interactive)
9063 (unless gnus-last-search-regexp
9064 (error "No previous search"))
9065 (gnus-summary-search-article-forward gnus-last-search-regexp))
9066
9067(defun gnus-summary-repeat-search-article-backward ()
9068 "Repeat the previous search backwards."
9069 (interactive)
9070 (unless gnus-last-search-regexp
9071 (error "No previous search"))
9072 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9073
eec82323
LMI
9074(defun gnus-summary-search-article-forward (regexp &optional backward)
9075 "Search for an article containing REGEXP forward.
9076If BACKWARD, search backward instead."
9077 (interactive
9078 (list (read-string
9079 (format "Search article %s (regexp%s): "
9080 (if current-prefix-arg "backward" "forward")
9081 (if gnus-last-search-regexp
9082 (concat ", default " gnus-last-search-regexp)
9083 "")))
9084 current-prefix-arg))
eec82323
LMI
9085 (if (string-equal regexp "")
9086 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9087 (setq gnus-last-search-regexp regexp)
9088 (setq gnus-article-before-search gnus-current-article))
9089 ;; Intentionally set gnus-last-article.
9090 (setq gnus-last-article gnus-article-before-search)
9091 (let ((gnus-last-article gnus-last-article))
9092 (if (gnus-summary-search-article regexp backward)
9093 (gnus-summary-show-thread)
abc40aab 9094 (signal 'search-failed (list regexp)))))
eec82323
LMI
9095
9096(defun gnus-summary-search-article-backward (regexp)
9097 "Search for an article containing REGEXP backward."
9098 (interactive
9099 (list (read-string
9100 (format "Search article backward (regexp%s): "
9101 (if gnus-last-search-regexp
9102 (concat ", default " gnus-last-search-regexp)
9103 "")))))
9104 (gnus-summary-search-article-forward regexp 'backward))
9105
9106(defun gnus-summary-search-article (regexp &optional backward)
9107 "Search for an article containing REGEXP.
9108Optional argument BACKWARD means do search for backward.
9109`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9110 ;; We have to require this here to make sure that the following
9111 ;; dynamic binding isn't shadowed by autoloading.
9112 (require 'gnus-async)
16409b0b 9113 (require 'gnus-art)
eec82323 9114 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9115 (gnus-article-prepare-hook nil)
eec82323
LMI
9116 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9117 (gnus-use-article-prefetch nil)
9118 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9119 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9120 (gnus-visual nil)
9121 (gnus-keep-backlog nil)
9122 (gnus-break-pages nil)
9123 (gnus-summary-display-arrow nil)
9124 (gnus-updated-mode-lines nil)
9125 (gnus-auto-center-summary nil)
eec82323 9126 (sum (current-buffer))
16409b0b 9127 (gnus-display-mime-function nil)
eec82323
LMI
9128 (found nil)
9129 point)
9130 (gnus-save-hidden-threads
9131 (gnus-summary-select-article)
9132 (set-buffer gnus-article-buffer)
16409b0b 9133 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9134 (when backward
9135 (forward-line -1))
9136 (while (not found)
9137 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9138 (if (if backward
9139 (re-search-backward regexp nil t)
9140 (re-search-forward regexp nil t))
9141 ;; We found the regexp.
9142 (progn
9143 (setq found 'found)
9144 (beginning-of-line)
9145 (set-window-start
9146 (get-buffer-window (current-buffer))
9147 (point))
9148 (forward-line 1)
16409b0b
GM
9149 (set-window-point
9150 (get-buffer-window (current-buffer))
9151 (point))
eec82323
LMI
9152 (set-buffer sum)
9153 (setq point (point)))
9154 ;; We didn't find it, so we go to the next article.
9155 (set-buffer sum)
9156 (setq found 'not)
9157 (while (eq found 'not)
9158 (if (not (if backward (gnus-summary-find-prev)
9159 (gnus-summary-find-next)))
9160 ;; No more articles.
9161 (setq found t)
9162 ;; Select the next article and adjust point.
9163 (unless (gnus-summary-article-sparse-p
9164 (gnus-summary-article-number))
9165 (setq found nil)
9166 (gnus-summary-select-article)
9167 (set-buffer gnus-article-buffer)
9168 (widen)
9169 (goto-char (if backward (point-max) (point-min))))))))
9170 (gnus-message 7 ""))
9171 ;; Return whether we found the regexp.
9172 (when (eq found 'found)
9173 (goto-char point)
9174 (gnus-summary-show-thread)
9175 (gnus-summary-goto-subject gnus-current-article)
9176 (gnus-summary-position-point)
9177 t)))
9178
23f87bed
MB
9179(defun gnus-find-matching-articles (header regexp)
9180 "Return a list of all articles that match REGEXP on HEADER.
9181This search includes all articles in the current group that Gnus has
9182fetched headers for, whether they are displayed or not."
9183 (let ((articles nil)
c7a91ce1 9184 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9185 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9186 (case-fold-search t))
9187 (dolist (header gnus-newsgroup-headers)
9188 (when (string-match regexp (funcall func header))
9189 (push (mail-header-number header) articles)))
9190 (nreverse articles)))
9191
eec82323 9192(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9193 not-case-fold not-matching)
eec82323
LMI
9194 "Return a list of all articles that match REGEXP on HEADER.
9195The search stars on the current article and goes forwards unless
9196BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9197If UNREAD is non-nil, only unread articles will
9198be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9199in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9200not match REGEXP on HEADER."
9201 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9202 articles d func)
9203 (if (consp header)
9204 (if (eq (car header) 'extra)
9205 (setq func
9206 `(lambda (h)
9207 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9208 "")))
9209 (error "%s is an invalid header" header))
9210 (unless (fboundp (intern (concat "mail-header-" header)))
9211 (error "%s is not a valid header" header))
9212 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9213 (dolist (d (if (eq backward 'all)
9214 gnus-newsgroup-data
9215 (gnus-data-find-list
9216 (gnus-summary-article-number)
9217 (gnus-data-list backward))))
9218 (when (and (or (not unread) ; We want all articles...
9219 (gnus-data-unread-p d)) ; Or just unreads.
9220 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9221 (if not-matching
a1506d29 9222 (not (string-match
47b63dfa
SZ
9223 regexp
9224 (funcall func (gnus-data-header d))))
9225 (string-match regexp
9226 (funcall func (gnus-data-header d)))))
9227 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9228 (nreverse articles)))
9229
9230(defun gnus-summary-execute-command (header regexp command &optional backward)
9231 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9232If HEADER is an empty string (or nil), the match is done on the entire
9233article. If BACKWARD (the prefix) is non-nil, search backward instead."
9234 (interactive
9235 (list (let ((completion-ignore-case t))
9236 (completing-read
9237 "Header name: "
23f87bed
MB
9238 (mapcar (lambda (header) (list (format "%s" header)))
9239 (append
9240 '("Number" "Subject" "From" "Lines" "Date"
9241 "Message-ID" "Xref" "References" "Body")
9242 gnus-extra-headers))
eec82323
LMI
9243 nil 'require-match))
9244 (read-string "Regexp: ")
9245 (read-key-sequence "Command: ")
9246 current-prefix-arg))
9247 (when (equal header "Body")
9248 (setq header ""))
eec82323
LMI
9249 ;; Hidden thread subtrees must be searched as well.
9250 (gnus-summary-show-all-threads)
9251 ;; We don't want to change current point nor window configuration.
9252 (save-excursion
9253 (save-window-excursion
23f87bed
MB
9254 (let (gnus-visual
9255 gnus-treat-strip-trailing-blank-lines
9256 gnus-treat-strip-leading-blank-lines
9257 gnus-treat-strip-multiple-blank-lines
9258 gnus-treat-hide-boring-headers
9259 gnus-treat-fold-newsgroups
9260 gnus-article-prepare-hook)
9261 (gnus-message 6 "Executing %s..." (key-description command))
9262 ;; We'd like to execute COMMAND interactively so as to give arguments.
9263 (gnus-execute header regexp
9264 `(call-interactively ',(key-binding command))
9265 backward)
9266 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9267
9268(defun gnus-summary-beginning-of-article ()
9269 "Scroll the article back to the beginning."
9270 (interactive)
eec82323
LMI
9271 (gnus-summary-select-article)
9272 (gnus-configure-windows 'article)
9273 (gnus-eval-in-buffer-window gnus-article-buffer
9274 (widen)
9275 (goto-char (point-min))
23f87bed 9276 (when gnus-break-pages
eec82323
LMI
9277 (gnus-narrow-to-page))))
9278
9279(defun gnus-summary-end-of-article ()
9280 "Scroll to the end of the article."
9281 (interactive)
eec82323
LMI
9282 (gnus-summary-select-article)
9283 (gnus-configure-windows 'article)
9284 (gnus-eval-in-buffer-window gnus-article-buffer
9285 (widen)
9286 (goto-char (point-max))
9287 (recenter -3)
23f87bed 9288 (when gnus-break-pages
eec82323
LMI
9289 (gnus-narrow-to-page))))
9290
23f87bed
MB
9291(defun gnus-summary-print-truncate-and-quote (string &optional len)
9292 "Truncate to LEN and quote all \"(\"'s in STRING."
9293 (gnus-replace-in-string (if (and len (> (length string) len))
9294 (substring string 0 len)
9295 string)
9296 "[()]" "\\\\\\&"))
9297
6748645f 9298(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9299 "Generate and print a PostScript image of the process-marked (mail) articles.
9300
9301If used interactively, print the current article if none are
9302process-marked. With prefix arg, prompt the user for the name of the
9303file to save in.
6748645f 9304
23f87bed
MB
9305When used from Lisp, accept two optional args FILENAME and N. N means
9306to print the next N articles. If N is negative, print the N previous
9307articles. If N is nil and articles have been marked with the process
9308mark, print these instead.
eec82323 9309
16409b0b 9310If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9311printer. If FILENAME is a string, save the PostScript image in a file with
9312that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9313to save in."
676a7cc9 9314 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9315 (dolist (article (gnus-summary-work-articles n))
9316 (gnus-summary-select-article nil nil 'pseudo article)
9317 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9318 (gnus-print-buffer))
676a7cc9
SZ
9319 (gnus-summary-remove-process-mark article))
9320 (ps-despool filename))
eec82323 9321
23f87bed
MB
9322(defun gnus-print-buffer ()
9323 (let ((buffer (generate-new-buffer " *print*")))
9324 (unwind-protect
9325 (progn
9326 (copy-to-buffer buffer (point-min) (point-max))
9327 (set-buffer buffer)
9328 (gnus-remove-text-with-property 'gnus-decoration)
9329 (when (gnus-visual-p 'article-highlight 'highlight)
9330 ;; Copy-to-buffer doesn't copy overlay. So redo
9331 ;; highlight.
9332 (let ((gnus-article-buffer buffer))
9333 (gnus-article-highlight-citation t)
9334 (gnus-article-highlight-signature)
9335 (gnus-article-emphasize)
9336 (gnus-article-delete-invisible-text)))
9337 (let ((ps-left-header
9338 (list
9339 (concat "("
9340 (gnus-summary-print-truncate-and-quote
9341 (mail-header-subject gnus-current-headers)
9342 66) ")")
9343 (concat "("
9344 (gnus-summary-print-truncate-and-quote
9345 (mail-header-from gnus-current-headers)
9346 45) ")")))
9347 (ps-right-header
9348 (list
9349 "/pagenumberstring load"
9350 (concat "("
9351 (mail-header-date gnus-current-headers) ")"))))
9352 (gnus-run-hooks 'gnus-ps-print-hook)
9353 (save-excursion
a7b50e1c 9354 (if ps-print-color-p
23f87bed
MB
9355 (ps-spool-buffer-with-faces)
9356 (ps-spool-buffer)))))
9357 (kill-buffer buffer))))
9358
eec82323 9359(defun gnus-summary-show-article (&optional arg)
23f87bed 9360 "Force redisplaying of the current article.
16409b0b
GM
9361If ARG (the prefix) is a number, show the article with the charset
9362defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9363input.
16409b0b 9364If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9365without any article massaging functions being run. Normally, the key
9366strokes are `C-u g'."
eec82323 9367 (interactive "P")
16409b0b
GM
9368 (cond
9369 ((numberp arg)
23f87bed 9370 (gnus-summary-show-article t)
16409b0b
GM
9371 (let ((gnus-newsgroup-charset
9372 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9373 (mm-read-coding-system
9374 "View as charset: " ;; actually it is coding system.
01c52d31 9375 (with-current-buffer gnus-article-buffer
23f87bed 9376 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9377 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9378 (gnus-summary-select-article nil 'force)
9379 (let ((deps gnus-newsgroup-dependencies)
9380 head header lines)
c7a91ce1 9381 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9382 (save-restriction
9383 (message-narrow-to-head)
9384 (setq head (buffer-string))
9385 (goto-char (point-min))
9386 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9387 (goto-char (point-max))
9388 (widen)
9389 (setq lines (1- (count-lines (point) (point-max))))))
9390 (with-temp-buffer
9391 (insert (format "211 %d Article retrieved.\n"
9392 (cdr gnus-article-current)))
9393 (insert head)
9394 (if lines (insert (format "Lines: %d\n" lines)))
9395 (insert ".\n")
9396 (let ((nntp-server-buffer (current-buffer)))
9397 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9398 (gnus-data-set-header
9399 (gnus-data-find (cdr gnus-article-current))
9400 header)
9401 (gnus-summary-update-article-line
9402 (cdr gnus-article-current) header)
9403 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9404 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9405 ((not arg)
9406 ;; Select the article the normal way.
9407 (gnus-summary-select-article nil 'force))
9408 (t
9409 ;; We have to require this here to make sure that the following
9410 ;; dynamic binding isn't shadowed by autoloading.
9411 (require 'gnus-async)
9412 (require 'gnus-art)
eec82323
LMI
9413 ;; Bind the article treatment functions to nil.
9414 (let ((gnus-have-all-headers t)
eec82323 9415 gnus-article-prepare-hook
16409b0b
GM
9416 gnus-article-decode-hook
9417 gnus-display-mime-function
9418 gnus-break-pages)
9419 ;; Destroy any MIME parts.
9420 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9421 (with-current-buffer gnus-article-buffer
16409b0b
GM
9422 (mm-destroy-parts gnus-article-mime-handles)
9423 ;; Set it to nil for safety reason.
9424 (setq gnus-article-mime-handle-alist nil)
9425 (setq gnus-article-mime-handles nil)))
9426 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9427 (gnus-summary-goto-subject gnus-current-article)
9428 (gnus-summary-position-point))
9429
23f87bed
MB
9430(defun gnus-summary-show-raw-article ()
9431 "Show the raw article without any article massaging functions being run."
9432 (interactive)
9433 (gnus-summary-show-article t))
9434
eec82323
LMI
9435(defun gnus-summary-verbose-headers (&optional arg)
9436 "Toggle permanent full header display.
9437If ARG is a positive number, turn header display on.
9438If ARG is a negative number, turn header display off."
9439 (interactive "P")
eec82323
LMI
9440 (setq gnus-show-all-headers
9441 (cond ((or (not (numberp arg))
9442 (zerop arg))
9443 (not gnus-show-all-headers))
9444 ((natnump arg)
9445 t)))
9446 (gnus-summary-show-article))
9447
9448(defun gnus-summary-toggle-header (&optional arg)
9449 "Show the headers if they are hidden, or hide them if they are shown.
9450If ARG is a positive number, show the entire header.
9451If ARG is a negative number, hide the unwanted header lines."
9452 (interactive "P")
23f87bed
MB
9453 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9454 (get-buffer-window gnus-article-buffer t))))
9455 (with-current-buffer gnus-article-buffer
9456 (widen)
9457 (article-narrow-to-head)
c7a91ce1 9458 (let* ((inhibit-read-only t)
16409b0b 9459 (inhibit-point-motion-hooks t)
23f87bed
MB
9460 (hidden (if (numberp arg)
9461 (>= arg 0)
f0096211
MB
9462 (or (not (looking-at "[^ \t\n]+:"))
9463 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9464 s e)
9465 (delete-region (point-min) (point-max))
667e0ba6
SM
9466 (with-current-buffer gnus-original-article-buffer
9467 (goto-char (setq s (point-min)))
23f87bed
MB
9468 (setq e (if (search-forward "\n\n" nil t)
9469 (1- (point))
9470 (point-max))))
667e0ba6 9471 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9472 (run-hooks 'gnus-article-decode-hook)
9473 (if hidden
9474 (let ((gnus-treat-hide-headers nil)
9475 (gnus-treat-hide-boring-headers nil))
9476 (gnus-delete-wash-type 'headers)
9477 (gnus-treat-article 'head))
9478 (gnus-treat-article 'head))
9479 (widen)
9480 (if window
9481 (set-window-start window (goto-char (point-min))))
9482 (if gnus-break-pages
9483 (gnus-narrow-to-page)
9484 (when (gnus-visual-p 'page-marker)
c7a91ce1 9485 (let ((inhibit-read-only t))
23f87bed
MB
9486 (gnus-remove-text-with-property 'gnus-prev)
9487 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9488 (gnus-set-mode-line 'article)))))
eec82323
LMI
9489
9490(defun gnus-summary-show-all-headers ()
9491 "Make all header lines visible."
9492 (interactive)
23f87bed 9493 (gnus-summary-toggle-header 1))
eec82323 9494
eec82323
LMI
9495(defun gnus-summary-caesar-message (&optional arg)
9496 "Caesar rotate the current article by 13.
01c52d31
MB
9497With a non-numerical prefix, also rotate headers. A numerical
9498prefix specifies how many places to rotate each letter forward."
eec82323 9499 (interactive "P")
eec82323
LMI
9500 (gnus-summary-select-article)
9501 (let ((mail-header-separator ""))
9502 (gnus-eval-in-buffer-window gnus-article-buffer
9503 (save-restriction
9504 (widen)
9505 (let ((start (window-start))
c7a91ce1 9506 (inhibit-read-only t))
01c52d31
MB
9507 (if (equal arg '(4))
9508 (message-caesar-buffer-body nil t)
9509 (message-caesar-buffer-body arg))
ff4d3926
MB
9510 (set-window-start (get-buffer-window (current-buffer)) start)))))
9511 ;; Create buttons and stuff...
9512 (gnus-treat-article nil))
eec82323 9513
704f1663
GM
9514(declare-function idna-to-unicode "ext:idna" (str))
9515
01c52d31
MB
9516(defun gnus-summary-idna-message (&optional arg)
9517 "Decode IDNA encoded domain names in the current articles.
9518IDNA encoded domain names looks like `xn--bar'. If a string
9519remain unencoded after running this function, it is likely an
9520invalid IDNA string (`xn--bar' is invalid).
9521
0b10e437 9522You must have GNU Libidn (URL `http://www.gnu.org/software/libidn/')
01c52d31
MB
9523installed for this command to work."
9524 (interactive "P")
9525 (if (not (and (condition-case nil (require 'idna)
9526 (file-error))
9527 (mm-coding-system-p 'utf-8)
9528 (executable-find (symbol-value 'idna-program))))
9529 (gnus-message
9530 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9531 (gnus-summary-select-article)
9532 (let ((mail-header-separator ""))
9533 (gnus-eval-in-buffer-window gnus-article-buffer
9534 (save-restriction
9535 (widen)
9536 (let ((start (window-start))
9537 buffer-read-only)
9538 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9539 (replace-match (idna-to-unicode (match-string 1))))
9540 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9541
9542(defun gnus-summary-morse-message (&optional arg)
9543 "Morse decode the current article."
9544 (interactive "P")
9545 (gnus-summary-select-article)
9546 (let ((mail-header-separator ""))
9547 (gnus-eval-in-buffer-window gnus-article-buffer
9548 (save-excursion
9549 (save-restriction
9550 (widen)
9551 (let ((pos (window-start))
c7a91ce1 9552 (inhibit-read-only t))
23f87bed
MB
9553 (goto-char (point-min))
9554 (when (message-goto-body)
9555 (gnus-narrow-to-body))
9556 (goto-char (point-min))
01c52d31 9557