Mention rounding of fringe width in the doc string of fringe-mode.
[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
a9ec34f4 988(defcustom gnus-summary-update-hook nil
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989 "*A hook called when a summary line is changed.
990The hook will not be called if `gnus-visual' is nil.
991
992The default function `gnus-summary-highlight-line' will
993highlight the line according to the `gnus-summary-highlight'
994variable."
995 :group 'gnus-summary-visual
996 :type 'hook)
997
998(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
999 "*A hook called when an article is selected for the first time.
1000The hook is intended to mark an article as read (or unread)
1001automatically when it is selected."
1002 :group 'gnus-summary-choose
1003 :type 'hook)
1004
1005(defcustom gnus-group-no-more-groups-hook nil
1006 "*A hook run when returning to group mode having no more (unread) groups."
1007 :group 'gnus-group-select
1008 :type 'hook)
1009
1010(defcustom gnus-ps-print-hook nil
1011 "*A hook run before ps-printing something from Gnus."
1012 :group 'gnus-summary
1013 :type 'hook)
1014
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1015(defcustom gnus-summary-article-move-hook nil
1016 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1017 :version "22.1"
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1018 :group 'gnus-summary
1019 :type 'hook)
1020
1021(defcustom gnus-summary-article-delete-hook nil
1022 "*A hook called after an article is deleted."
bf247b6e 1023 :version "22.1"
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1024 :group 'gnus-summary
1025 :type 'hook)
1026
1027(defcustom gnus-summary-article-expire-hook nil
1028 "*A hook called after an article is expired."
bf247b6e 1029 :version "22.1"
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1030 :group 'gnus-summary
1031 :type 'hook)
1032
1033(defcustom gnus-summary-display-arrow
1034 (and (fboundp 'display-graphic-p)
1035 (display-graphic-p))
1036 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1037 :version "22.1"
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1038 :group 'gnus-summary
1039 :type 'boolean)
1040
0f49874b 1041(defcustom gnus-summary-selected-face 'gnus-summary-selected
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1042 "Face used for highlighting the current article in the summary buffer."
1043 :group 'gnus-summary-visual
1044 :type 'face)
1045
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1046(defvar gnus-tmp-downloaded nil)
1047
eec82323 1048(defcustom gnus-summary-highlight
23f87bed 1049 '(((eq mark gnus-canceled-mark)
0f49874b 1050 . gnus-summary-cancelled)
23f87bed 1051 ((and uncached (> score default-high))
0f49874b 1052 . gnus-summary-high-undownloaded)
23f87bed 1053 ((and uncached (< score default-low))
0f49874b 1054 . gnus-summary-low-undownloaded)
23f87bed 1055 (uncached
0f49874b 1056 . gnus-summary-normal-undownloaded)
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1057 ((and (> score default-high)
1058 (or (eq mark gnus-dormant-mark)
1059 (eq mark gnus-ticked-mark)))
0f49874b 1060 . gnus-summary-high-ticked)
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1061 ((and (< score default-low)
1062 (or (eq mark gnus-dormant-mark)
1063 (eq mark gnus-ticked-mark)))
0f49874b 1064 . gnus-summary-low-ticked)
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1065 ((or (eq mark gnus-dormant-mark)
1066 (eq mark gnus-ticked-mark))
0f49874b 1067 . gnus-summary-normal-ticked)
23f87bed 1068 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1069 . gnus-summary-high-ancient)
23f87bed 1070 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1071 . gnus-summary-low-ancient)
23f87bed 1072 ((eq mark gnus-ancient-mark)
0f49874b 1073 . gnus-summary-normal-ancient)
23f87bed 1074 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1075 . gnus-summary-high-unread)
23f87bed 1076 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1077 . gnus-summary-low-unread)
23f87bed 1078 ((eq mark gnus-unread-mark)
0f49874b 1079 . gnus-summary-normal-unread)
23f87bed 1080 ((> score default-high)
0f49874b 1081 . gnus-summary-high-read)
23f87bed 1082 ((< score default-low)
0f49874b 1083 . gnus-summary-low-read)
eec82323 1084 (t
0f49874b 1085 . gnus-summary-normal-read))
6748645f 1086 "*Controls the highlighting of summary buffer lines.
eec82323 1087
107cf8ec 1088A list of (FORM . FACE) pairs. When deciding how a particular
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1089summary line should be displayed, each form is evaluated. The content
1090of the face field after the first true form is used. You can change
1091how those summary lines are displayed, by editing the face field.
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1092
1093You can use the following variables in the FORM field.
1094
107cf8ec 1095score: The article's score.
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1096default: The default article score.
1097default-high: The default score for high scored articles.
1098default-low: The default score for low scored articles.
1099below: The score below which articles are automatically marked as read.
1100mark: The article's mark.
1101uncached: Non-nil if the article is uncached."
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1102 :group 'gnus-summary-visual
1103 :type '(repeat (cons (sexp :tag "Form" nil)
1104 face)))
c12ecb0a 1105(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1106
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1107(defcustom gnus-alter-header-function nil
1108 "Function called to allow alteration of article header structures.
1109The function is called with one parameter, the article header vector,
0ab0f2d3
SZ
1110which it may alter in any way."
1111 :type '(choice (const :tag "None" nil)
1112 function)
1113 :group 'gnus-summary)
eec82323 1114
16409b0b 1115(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
343d6628
MB
1116 "Function used to decode a string with encoded words.")
1117
1118(defvar gnus-decode-encoded-address-function
1119 'mail-decode-encoded-address-string
1120 "Function used to decode addresses with encoded words.")
16409b0b 1121
23f87bed 1122(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1123 "*Extra headers to parse."
58e39d05 1124 :version "21.1"
16409b0b
GM
1125 :group 'gnus-summary
1126 :type '(repeat symbol))
1127
1128(defcustom gnus-ignored-from-addresses
343d6628 1129 (and user-mail-address
7cd9f860
CY
1130 (not (string= user-mail-address ""))
1131 (regexp-quote user-mail-address))
01c52d31
MB
1132 "*From headers that may be suppressed in favor of To headers.
1133This can be a regexp or a list of regexps."
58e39d05 1134 :version "21.1"
16409b0b 1135 :group 'gnus-summary
01c52d31
MB
1136 :type '(choice regexp
1137 (repeat :tag "Regexp List" regexp)))
1138
1139(defsubst gnus-ignored-from-addresses ()
1140 (gmm-regexp-concat gnus-ignored-from-addresses))
1141
1142(defcustom gnus-summary-to-prefix "-> "
1143 "*String prefixed to the To field in the summary line when
1144using `gnus-ignored-from-addresses'."
1145 :version "22.1"
1146 :group 'gnus-summary
1147 :type 'string)
1148
1149(defcustom gnus-summary-newsgroup-prefix "=> "
1150 "*String prefixed to the Newsgroup field in the summary
1151line when using `gnus-ignored-from-addresses'."
1152 :version "22.1"
1153 :group 'gnus-summary
1154 :type 'string)
16409b0b 1155
16409b0b
GM
1156(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1157 "List of charsets that should be ignored.
1158When these charsets are used in the \"charset\" parameter, the
1159default charset will be used instead."
58e39d05 1160 :version "21.1"
16409b0b
GM
1161 :type '(repeat symbol)
1162 :group 'gnus-charset)
1163
4b70e299
MB
1164(defcustom gnus-newsgroup-maximum-articles nil
1165 "The maximum number of articles a newsgroup.
1166If this is a number, old articles in a newsgroup exceeding this number
1167are silently ignored. If it is nil, no article is ignored. Note that
1168setting this variable to a number might prevent you from reading very
1169old articles."
1170 :group 'gnus-group-select
1171 :version "22.2"
1172 :type '(choice (const :tag "No limit" nil)
1173 integer))
1174
23f87bed
MB
1175(gnus-define-group-parameter
1176 ignored-charsets
1177 :type list
1178 :function-document
1179 "Return the ignored charsets of GROUP."
1180 :variable gnus-group-ignored-charsets-alist
1181 :variable-default
1182 '(("alt\\.chinese\\.text" iso-8859-1))
1183 :variable-document
1184 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1185When these charsets are used in the \"charset\" parameter, the
1186default charset will be used instead."
23f87bed
MB
1187 :variable-group gnus-charset
1188 :variable-type '(repeat (cons (regexp :tag "Group")
1189 (repeat symbol)))
1190 :parameter-type '(choice :tag "Ignored charsets"
1191 :value nil
1192 (repeat (symbol)))
1193 :parameter-document "\
1194List of charsets that should be ignored.
1195
1196When these charsets are used in the \"charset\" parameter, the
1197default charset will be used instead.")
16409b0b
GM
1198
1199(defcustom gnus-group-highlight-words-alist nil
1200 "Alist of group regexps and highlight regexps.
1201This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1202 :version "21.1"
16409b0b
GM
1203 :type '(repeat (cons (regexp :tag "Group")
1204 (repeat (list (regexp :tag "Highlight regexp")
1205 (number :tag "Group for entire word" 0)
1206 (number :tag "Group for displayed part" 0)
1207 (symbol :tag "Face"
1208 gnus-emphasis-highlight-words)))))
1209 :group 'gnus-summary-visual)
1210
1211(defcustom gnus-summary-show-article-charset-alist
1212 nil
1213 "Alist of number and charset.
1214The article will be shown with the charset corresponding to the
1215numbered argument.
1216For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1217 :version "21.1"
16409b0b
GM
1218 :type '(repeat (cons (number :tag "Argument" 1)
1219 (symbol :tag "Charset")))
1220 :group 'gnus-charset)
1221
1222(defcustom gnus-preserve-marks t
1223 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1224 :version "21.1"
16409b0b
GM
1225 :type 'boolean
1226 :group 'gnus-summary-marks)
1227
3a23a519
MB
1228(defcustom gnus-propagate-marks t
1229 "If non-nil, do not propagate marks to the backends."
f8a29505 1230 :version "23.1" ;; No Gnus
3a23a519
MB
1231 :type 'boolean
1232 :group 'gnus-summary-marks)
1233
16409b0b
GM
1234(defcustom gnus-alter-articles-to-read-function nil
1235 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1236 :type '(choice (const nil) function)
16409b0b
GM
1237 :group 'gnus-summary)
1238
1239(defcustom gnus-orphan-score nil
1240 "*All orphans get this score added. Set in the score file."
1241 :group 'gnus-score-default
1242 :type '(choice (const nil)
1243 integer))
1244
8b93df01 1245(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1246 "*A regexp to match MIME parts when saving multiple parts of a
1247message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1248This regexp will be used by default when prompting the user for which
1249type of files to save."
8b93df01
DL
1250 :group 'gnus-summary
1251 :type 'regexp)
1252
23f87bed
MB
1253(defcustom gnus-read-all-available-headers nil
1254 "Whether Gnus should parse all headers made available to it.
1255This is mostly relevant for slow back ends where the user may
1256wish to widen the summary buffer to include all headers
c4d82de8 1257that were fetched."
bf247b6e 1258 :version "22.1"
23f87bed
MB
1259 :group 'gnus-summary
1260 :type '(choice boolean regexp))
1261
89167438
MB
1262(defcustom gnus-summary-pipe-output-default-command nil
1263 "Command (and optional arguments) used to pipe article to subprocess.
1264This will be used as the default command if it is non-nil. The value
1265will be updated if you modify it when executing the command
1266`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1267 :version "23.1" ;; No Gnus
1268 :group 'gnus-summary
1269 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1270
23f87bed 1271(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1272 "Command (and optional arguments) used to run Muttprint.
1273The value will be updated if you modify it when executing the command
1274`gnus-summary-muttprint'."
bf247b6e 1275 :version "22.1"
23f87bed
MB
1276 :group 'gnus-summary
1277 :type 'string)
1278
01c52d31 1279(defcustom gnus-article-loose-mime t
23f87bed
MB
1280 "If non-nil, don't require MIME-Version header.
1281Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1282supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1283If non-nil (the default), Gnus will treat some articles as MIME
1284even if the MIME-Version header is missing."
bf247b6e 1285 :version "22.1"
23f87bed
MB
1286 :type 'boolean
1287 :group 'gnus-article-mime)
1288
1289(defcustom gnus-article-emulate-mime t
1290 "If non-nil, use MIME emulation for uuencode and the like.
1291This means that Gnus will search message bodies for text that look
1292like uuencoded bits, yEncoded bits, and so on, and present that using
1293the normal Gnus MIME machinery."
bf247b6e 1294 :version "22.1"
23f87bed
MB
1295 :type 'boolean
1296 :group 'gnus-article-mime)
8b93df01 1297
eec82323
LMI
1298;;; Internal variables
1299
23f87bed 1300(defvar gnus-summary-display-cache nil)
16409b0b
GM
1301(defvar gnus-article-mime-handles nil)
1302(defvar gnus-article-decoded-p nil)
23f87bed
MB
1303(defvar gnus-article-charset nil)
1304(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1305(defvar gnus-scores-exclude-files nil)
1306(defvar gnus-page-broken nil)
1307
1308(defvar gnus-original-article nil)
1309(defvar gnus-article-internal-prepare-hook nil)
1310(defvar gnus-newsgroup-process-stack nil)
1311
1312(defvar gnus-thread-indent-array nil)
1313(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1314(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1315 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1316
8b93df01 1317(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1318(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1319
eec82323
LMI
1320;; Avoid highlighting in kill files.
1321(defvar gnus-summary-inhibit-highlight nil)
1322(defvar gnus-newsgroup-selected-overlay nil)
1323(defvar gnus-inhibit-limiting nil)
1324(defvar gnus-newsgroup-adaptive-score-file nil)
1325(defvar gnus-current-score-file nil)
1326(defvar gnus-current-move-group nil)
1327(defvar gnus-current-copy-group nil)
1328(defvar gnus-current-crosspost-group nil)
23f87bed 1329(defvar gnus-newsgroup-display nil)
eec82323
LMI
1330
1331(defvar gnus-newsgroup-dependencies nil)
1332(defvar gnus-newsgroup-adaptive nil)
1333(defvar gnus-summary-display-article-function nil)
1334(defvar gnus-summary-highlight-line-function nil
1335 "Function called after highlighting a summary line.")
1336
1337(defvar gnus-summary-line-format-alist
1338 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1339 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1340 (?s gnus-tmp-subject-or-nil ?s)
1341 (?n gnus-tmp-name ?s)
1342 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1343 ?s)
1344 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1345 gnus-tmp-from) ?s)
1346 (?F gnus-tmp-from ?s)
1347 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1348 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1349 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1350 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1351 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1352 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1353 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1354 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1355 (?L gnus-tmp-lines ?s)
1356 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1357 (?I gnus-tmp-indentation ?s)
1358 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1359 (?R gnus-tmp-replied ?c)
1360 (?\[ gnus-tmp-opening-bracket ?c)
1361 (?\] gnus-tmp-closing-bracket ?c)
1362 (?\> (make-string gnus-tmp-level ? ) ?s)
1363 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1364 (?i gnus-tmp-score ?d)
1365 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1366 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1367 (?U gnus-tmp-unread ?c)
23f87bed
MB
1368 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1369 ?s)
eec82323
LMI
1370 (?t (gnus-summary-number-of-articles-in-thread
1371 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1372 ?d)
1373 (?e (gnus-summary-number-of-articles-in-thread
1374 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1375 ?c)
1376 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1377 (?P (gnus-pick-line-number) ?d)
1378 (?B gnus-tmp-thread-tree-header-string ?s)
1379 (user-date (gnus-user-date
1380 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1381 "An alist of format specifications that can appear in summary lines.
1382These are paired with what variables they correspond with, along with
1383the type of the variable (string, integer, character, etc).")
eec82323
LMI
1384
1385(defvar gnus-summary-dummy-line-format-alist
1386 `((?S gnus-tmp-subject ?s)
1387 (?N gnus-tmp-number ?d)
1388 (?u gnus-tmp-user-defined ?s)))
1389
1390(defvar gnus-summary-mode-line-format-alist
1391 `((?G gnus-tmp-group-name ?s)
1392 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1393 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1394 (?A gnus-tmp-article-number ?d)
1395 (?Z gnus-tmp-unread-and-unselected ?s)
1396 (?V gnus-version ?s)
1397 (?U gnus-tmp-unread-and-unticked ?d)
1398 (?S gnus-tmp-subject ?s)
1399 (?e gnus-tmp-unselected ?d)
1400 (?u gnus-tmp-user-defined ?s)
1401 (?d (length gnus-newsgroup-dormant) ?d)
1402 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1403 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1404 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1405 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1406 (?E gnus-newsgroup-expunged-tally ?d)
1407 (?s (gnus-current-score-file-nondirectory) ?s)))
1408
c1717fbd
GM
1409;; This is here rather than in gnus-art for compilation reasons.
1410(defvar gnus-article-mode-line-format-alist
1411 (nconc '((?w (gnus-article-wash-status) ?s)
1412 (?m (gnus-article-mime-part-status) ?s))
1413 gnus-summary-mode-line-format-alist))
1414
eec82323
LMI
1415(defvar gnus-last-search-regexp nil
1416 "Default regexp for article search command.")
1417
1418(defvar gnus-last-shell-command nil
1419 "Default shell command on article.")
1420
23f87bed
MB
1421(defvar gnus-newsgroup-agentized nil
1422 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1423(defvar gnus-newsgroup-begin nil)
1424(defvar gnus-newsgroup-end nil)
1425(defvar gnus-newsgroup-last-rmail nil)
1426(defvar gnus-newsgroup-last-mail nil)
1427(defvar gnus-newsgroup-last-folder nil)
1428(defvar gnus-newsgroup-last-file nil)
26c9afc3 1429(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1430(defvar gnus-newsgroup-auto-expire nil)
1431(defvar gnus-newsgroup-active nil)
1432
1433(defvar gnus-newsgroup-data nil)
1434(defvar gnus-newsgroup-data-reverse nil)
1435(defvar gnus-newsgroup-limit nil)
1436(defvar gnus-newsgroup-limits nil)
23f87bed 1437(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1438
1439(defvar gnus-newsgroup-unreads nil
23f87bed 1440 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1441
1442(defvar gnus-newsgroup-unselected nil
23f87bed 1443 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1444
1445(defvar gnus-newsgroup-reads nil
1446 "Alist of read articles and article marks in the current newsgroup.")
1447
1448(defvar gnus-newsgroup-expunged-tally nil)
1449
1450(defvar gnus-newsgroup-marked nil
23f87bed
MB
1451 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1452
1453(defvar gnus-newsgroup-spam-marked nil
1454 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1455
1456(defvar gnus-newsgroup-killed nil
1457 "List of ranges of articles that have been through the scoring process.")
1458
1459(defvar gnus-newsgroup-cached nil
23f87bed 1460 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1461
1462(defvar gnus-newsgroup-saved nil
1463 "List of articles that have been saved.")
1464
1465(defvar gnus-newsgroup-kill-headers nil)
1466
1467(defvar gnus-newsgroup-replied nil
1468 "List of articles that have been replied to in the current newsgroup.")
1469
23f87bed
MB
1470(defvar gnus-newsgroup-forwarded nil
1471 "List of articles that have been forwarded in the current newsgroup.")
1472
1473(defvar gnus-newsgroup-recent nil
1474 "List of articles that have are recent in the current newsgroup.")
1475
eec82323 1476(defvar gnus-newsgroup-expirable nil
23f87bed 1477 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1478
1479(defvar gnus-newsgroup-processable nil
1480 "List of articles in the current newsgroup that can be processed.")
1481
6748645f 1482(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1483 "Sorted list of articles in the current newsgroup that can be processed.")
1484
1485(defvar gnus-newsgroup-unfetched nil
1486 "Sorted list of articles in the current newsgroup whose headers have
1487not been fetched into the agent.
1488
1489This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1490
1491(defvar gnus-newsgroup-undownloaded nil
23f87bed 1492 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1493
1494(defvar gnus-newsgroup-unsendable nil
1495 "List of articles in the current newsgroup that won't be sent.")
1496
eec82323
LMI
1497(defvar gnus-newsgroup-bookmarks nil
1498 "List of articles in the current newsgroup that have bookmarks.")
1499
1500(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1501 "Sorted list of dormant articles in the current newsgroup.")
1502
1503(defvar gnus-newsgroup-unseen nil
1504 "List of unseen articles in the current newsgroup.")
1505
1506(defvar gnus-newsgroup-seen nil
1507 "Range of seen articles in the current newsgroup.")
1508
1509(defvar gnus-newsgroup-articles nil
1510 "List of articles in the current newsgroup.")
eec82323
LMI
1511
1512(defvar gnus-newsgroup-scored nil
1513 "List of scored articles in the current newsgroup.")
1514
1515(defvar gnus-newsgroup-headers nil
1516 "List of article headers in the current newsgroup.")
1517
1518(defvar gnus-newsgroup-threads nil)
1519
1520(defvar gnus-newsgroup-prepared nil
1521 "Whether the current group has been prepared properly.")
1522
1523(defvar gnus-newsgroup-ancient nil
1524 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1525
1526(defvar gnus-newsgroup-sparse nil)
1527
1528(defvar gnus-current-article nil)
1529(defvar gnus-article-current nil)
1530(defvar gnus-current-headers nil)
1531(defvar gnus-have-all-headers nil)
1532(defvar gnus-last-article nil)
1533(defvar gnus-newsgroup-history nil)
16409b0b
GM
1534(defvar gnus-newsgroup-charset nil)
1535(defvar gnus-newsgroup-ephemeral-charset nil)
1536(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1537
23f87bed
MB
1538(defvar gnus-article-before-search nil)
1539
1540(defvar gnus-summary-local-variables
eec82323
LMI
1541 '(gnus-newsgroup-name
1542 gnus-newsgroup-begin gnus-newsgroup-end
1543 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1544 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1545 gnus-newsgroup-last-directory
eec82323
LMI
1546 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1547 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1548 gnus-newsgroup-spam-marked
eec82323 1549 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1550 gnus-newsgroup-replied gnus-newsgroup-forwarded
1551 gnus-newsgroup-recent
1552 gnus-newsgroup-expirable
eec82323 1553 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1554 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1555 gnus-newsgroup-unfetched
1556 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1557 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1558 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1559 gnus-newsgroup-headers gnus-newsgroup-threads
1560 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1561 gnus-current-article gnus-current-headers gnus-have-all-headers
1562 gnus-last-article gnus-article-internal-prepare-hook
1563 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1564 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1565 gnus-thread-expunge-below
16409b0b
GM
1566 gnus-score-alist gnus-current-score-file
1567 (gnus-summary-expunge-below . global)
eec82323 1568 (gnus-summary-mark-below . global)
16409b0b 1569 (gnus-orphan-score . global)
eec82323
LMI
1570 gnus-newsgroup-active gnus-scores-exclude-files
1571 gnus-newsgroup-history gnus-newsgroup-ancient
1572 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1573 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1574 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1575 (gnus-newsgroup-expunged-tally . 0)
1576 gnus-cache-removable-articles gnus-newsgroup-cached
1577 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1578 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1579 gnus-newsgroup-charset gnus-newsgroup-display
1580 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1581 "Variables that are buffer-local to the summary buffers.")
1582
23f87bed
MB
1583(defvar gnus-newsgroup-variables nil
1584 "A list of variables that have separate values in different newsgroups.
1585A list of newsgroup (summary buffer) local variables, or cons of
1586variables and their default expressions to be evalled (when the default
1587values are not nil), that should be made global while the summary buffer
1588is active.
1589
1590Note: The default expressions will be evaluated (using function `eval')
1591before assignment to the local variable rather than just assigned to it.
1592If the default expression is the symbol `global', that symbol will not
1593be evaluated but the global value of the local variable will be used
1594instead.
1595
1596These variables can be used to set variables in the group parameters
1597while still allowing them to affect operations done in other buffers.
1598For example:
1599
1600\(setq gnus-newsgroup-variables
1601 '(message-use-followup-to
1602 (gnus-visible-headers .
1603 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1604")
1605
23f87bed
MB
1606(eval-when-compile
1607 ;; Bind features so that require will believe that gnus-sum has
1608 ;; already been loaded (avoids infinite recursion)
1609 (let ((features (cons 'gnus-sum features)))
23f87bed 1610 (require 'gnus-art)))
eec82323 1611
16409b0b
GM
1612;; MIME stuff.
1613
1614(defvar gnus-decode-encoded-word-methods
1615 '(mail-decode-encoded-word-string)
1616 "List of methods used to decode encoded words.
1617
23f87bed
MB
1618This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1619is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1620\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1621whose names match REGEXP.
1622
1623For example:
23f87bed 1624\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1625 mail-decode-encoded-word-string
1626 (\"chinese\" . rfc1843-decode-string))")
1627
1628(defvar gnus-decode-encoded-word-methods-cache nil)
1629
1630(defun gnus-multi-decode-encoded-word-string (string)
1631 "Apply the functions from `gnus-encoded-word-methods' that match."
1632 (unless (and gnus-decode-encoded-word-methods-cache
1633 (eq gnus-newsgroup-name
1634 (car gnus-decode-encoded-word-methods-cache)))
1635 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1636 (dolist (method gnus-decode-encoded-word-methods)
1637 (if (symbolp method)
1638 (nconc gnus-decode-encoded-word-methods-cache (list method))
1639 (if (and gnus-newsgroup-name
1640 (string-match (car method) gnus-newsgroup-name))
1641 (nconc gnus-decode-encoded-word-methods-cache
1642 (list (cdr method)))))))
1643 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1644 (setq string (funcall method string))))
16409b0b 1645
eec82323
LMI
1646;; Subject simplification.
1647
6748645f 1648(defun gnus-simplify-whitespace (str)
16409b0b 1649 "Remove excessive whitespace from STR."
23f87bed
MB
1650 ;; Multiple spaces.
1651 (while (string-match "[ \t][ \t]+" str)
1652 (setq str (concat (substring str 0 (match-beginning 0))
1653 " "
1654 (substring str (match-end 0)))))
1655 ;; Leading spaces.
1656 (when (string-match "^[ \t]+" str)
1657 (setq str (substring str (match-end 0))))
1658 ;; Trailing spaces.
1659 (when (string-match "[ \t]+$" str)
1660 (setq str (substring str 0 (match-beginning 0))))
1661 str)
1662
1663(defun gnus-simplify-all-whitespace (str)
1664 "Remove all whitespace from STR."
1665 (while (string-match "[ \t\n]+" str)
1666 (setq str (replace-match "" nil nil str)))
1667 str)
6748645f 1668
eec82323
LMI
1669(defsubst gnus-simplify-subject-re (subject)
1670 "Remove \"Re:\" from subject lines."
23f87bed 1671 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1672 (substring subject (match-end 0))
1673 subject))
1674
1675(defun gnus-simplify-subject (subject &optional re-only)
1676 "Remove `Re:' and words in parentheses.
1677If RE-ONLY is non-nil, strip leading `Re:'s only."
1678 (let ((case-fold-search t)) ;Ignore case.
1679 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1680 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1681 (setq subject (substring subject (match-end 0))))
1682 ;; Remove uninteresting prefixes.
1683 (when (and (not re-only)
1684 gnus-simplify-ignored-prefixes
1685 (string-match gnus-simplify-ignored-prefixes subject))
1686 (setq subject (substring subject (match-end 0))))
1687 ;; Remove words in parentheses from end.
1688 (unless re-only
1689 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1690 (setq subject (substring subject 0 (match-beginning 0)))))
1691 ;; Return subject string.
1692 subject))
1693
1694;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1695;; all whitespace.
1696(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1697 (goto-char (point-min))
1698 (while (re-search-forward regexp nil t)
16409b0b 1699 (replace-match (or newtext ""))))
eec82323
LMI
1700
1701(defun gnus-simplify-buffer-fuzzy ()
1702 "Simplify string in the buffer fuzzily.
1703The string in the accessible portion of the current buffer is simplified.
1704It is assumed to be a single-line subject.
1705Whitespace is generally cleaned up, and miscellaneous leading/trailing
1706matter is removed. Additional things can be deleted by setting
16409b0b 1707`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1708 (let ((case-fold-search t)
1709 (modified-tick))
1710 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1711
1712 (while (not (eq modified-tick (buffer-modified-tick)))
1713 (setq modified-tick (buffer-modified-tick))
1714 (cond
1715 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
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1716 (mapc 'gnus-simplify-buffer-fuzzy-step
1717 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1718 (gnus-simplify-subject-fuzzy-regexp
1719 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1720 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1721 (gnus-simplify-buffer-fuzzy-step
1722 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1723 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1724
1725 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1726 (gnus-simplify-buffer-fuzzy-step " +" " ")
1727 (gnus-simplify-buffer-fuzzy-step " $")
1728 (gnus-simplify-buffer-fuzzy-step "^ +")))
1729
1730(defun gnus-simplify-subject-fuzzy (subject)
1731 "Simplify a subject string fuzzily.
6748645f 1732See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1733 (save-excursion
1734 (gnus-set-work-buffer)
1735 (let ((case-fold-search t))
6748645f
LMI
1736 ;; Remove uninteresting prefixes.
1737 (when (and gnus-simplify-ignored-prefixes
1738 (string-match gnus-simplify-ignored-prefixes subject))
1739 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1740 (insert subject)
1741 (inline (gnus-simplify-buffer-fuzzy))
1742 (buffer-string))))
1743
1744(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1745 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1746 (cond
6748645f
LMI
1747 (gnus-simplify-subject-functions
1748 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1749 ((null gnus-summary-gather-subject-limit)
1750 (gnus-simplify-subject-re subject))
1751 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1752 (gnus-simplify-subject-fuzzy subject))
1753 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1754 (truncate-string-to-width (gnus-simplify-subject-re subject)
1755 gnus-summary-gather-subject-limit))
eec82323
LMI
1756 (t
1757 subject)))
1758
1759(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1760 "Check whether two subjects are equal.
23f87bed 1761If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1762simplified."
eec82323
LMI
1763 (cond
1764 ((null simple-first)
1765 (equal (gnus-simplify-subject-fully s1)
1766 (gnus-simplify-subject-fully s2)))
1767 (t
1768 (equal s1
1769 (gnus-simplify-subject-fully s2)))))
1770
1771(defun gnus-summary-bubble-group ()
1772 "Increase the score of the current group.
1773This is a handy function to add to `gnus-summary-exit-hook' to
1774increase the score of each group you read."
1775 (gnus-group-add-score gnus-newsgroup-name))
1776
1777\f
1778;;;
1779;;; Gnus summary mode
1780;;;
1781
1782(put 'gnus-summary-mode 'mode-class 'special)
1783
1653df0f
SZ
1784(defvar gnus-article-commands-menu)
1785
23f87bed
MB
1786;; Non-orthogonal keys
1787
1788(gnus-define-keys gnus-summary-mode-map
1789 " " gnus-summary-next-page
1790 "\177" gnus-summary-prev-page
1791 [delete] gnus-summary-prev-page
1792 [backspace] gnus-summary-prev-page
1793 "\r" gnus-summary-scroll-up
1794 "\M-\r" gnus-summary-scroll-down
1795 "n" gnus-summary-next-unread-article
1796 "p" gnus-summary-prev-unread-article
1797 "N" gnus-summary-next-article
1798 "P" gnus-summary-prev-article
1799 "\M-\C-n" gnus-summary-next-same-subject
1800 "\M-\C-p" gnus-summary-prev-same-subject
1801 "\M-n" gnus-summary-next-unread-subject
1802 "\M-p" gnus-summary-prev-unread-subject
1803 "." gnus-summary-first-unread-article
1804 "," gnus-summary-best-unread-article
1805 "\M-s" gnus-summary-search-article-forward
1806 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1807 "\M-S" gnus-summary-repeat-search-article-forward
1808 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
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1809 "<" gnus-summary-beginning-of-article
1810 ">" gnus-summary-end-of-article
1811 "j" gnus-summary-goto-article
1812 "^" gnus-summary-refer-parent-article
1813 "\M-^" gnus-summary-refer-article
1814 "u" gnus-summary-tick-article-forward
1815 "!" gnus-summary-tick-article-forward
1816 "U" gnus-summary-tick-article-backward
1817 "d" gnus-summary-mark-as-read-forward
1818 "D" gnus-summary-mark-as-read-backward
1819 "E" gnus-summary-mark-as-expirable
1820 "\M-u" gnus-summary-clear-mark-forward
1821 "\M-U" gnus-summary-clear-mark-backward
1822 "k" gnus-summary-kill-same-subject-and-select
1823 "\C-k" gnus-summary-kill-same-subject
1824 "\M-\C-k" gnus-summary-kill-thread
1825 "\M-\C-l" gnus-summary-lower-thread
1826 "e" gnus-summary-edit-article
1827 "#" gnus-summary-mark-as-processable
1828 "\M-#" gnus-summary-unmark-as-processable
1829 "\M-\C-t" gnus-summary-toggle-threads
1830 "\M-\C-s" gnus-summary-show-thread
1831 "\M-\C-h" gnus-summary-hide-thread
1832 "\M-\C-f" gnus-summary-next-thread
1833 "\M-\C-b" gnus-summary-prev-thread
1834 [(meta down)] gnus-summary-next-thread
1835 [(meta up)] gnus-summary-prev-thread
1836 "\M-\C-u" gnus-summary-up-thread
1837 "\M-\C-d" gnus-summary-down-thread
1838 "&" gnus-summary-execute-command
1839 "c" gnus-summary-catchup-and-exit
1840 "\C-w" gnus-summary-mark-region-as-read
1841 "\C-t" gnus-summary-toggle-truncation
1842 "?" gnus-summary-mark-as-dormant
1843 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1844 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1845 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1846 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1847 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1848 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1849 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1850 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1851 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1852 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1853 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1854 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1855 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1856 "=" gnus-summary-expand-window
1857 "\C-x\C-s" gnus-summary-reselect-current-group
1858 "\M-g" gnus-summary-rescan-group
23f87bed
MB
1859 "\C-c\C-r" gnus-summary-caesar-message
1860 "f" gnus-summary-followup
1861 "F" gnus-summary-followup-with-original
1862 "C" gnus-summary-cancel-article
1863 "r" gnus-summary-reply
1864 "R" gnus-summary-reply-with-original
1865 "\C-c\C-f" gnus-summary-mail-forward
1866 "o" gnus-summary-save-article
1867 "\C-o" gnus-summary-save-article-mail
1868 "|" gnus-summary-pipe-output
1869 "\M-k" gnus-summary-edit-local-kill
1870 "\M-K" gnus-summary-edit-global-kill
1871 ;; "V" gnus-version
1872 "\C-c\C-d" gnus-summary-describe-group
1873 "q" gnus-summary-exit
1874 "Q" gnus-summary-exit-no-update
1875 "\C-c\C-i" gnus-info-find-node
1876 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1877 [follow-link] mouse-face
23f87bed
MB
1878 "m" gnus-summary-mail-other-window
1879 "a" gnus-summary-post-news
23f87bed
MB
1880 "x" gnus-summary-limit-to-unread
1881 "s" gnus-summary-isearch-article
1882 "t" gnus-summary-toggle-header
1883 "g" gnus-summary-show-article
1884 "l" gnus-summary-goto-last-article
1885 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1886 "\C-d" gnus-summary-enter-digest-group
1887 "\M-\C-d" gnus-summary-read-document
1888 "\M-\C-e" gnus-summary-edit-parameters
1889 "\M-\C-a" gnus-summary-customize-parameters
1890 "\C-c\C-b" gnus-bug
1891 "*" gnus-cache-enter-article
1892 "\M-*" gnus-cache-remove-article
1893 "\M-&" gnus-summary-universal-argument
1894 "\C-l" gnus-recenter
1895 "I" gnus-summary-increase-score
1896 "L" gnus-summary-lower-score
1897 "\M-i" gnus-symbolic-argument
1898 "h" gnus-summary-select-article-buffer
1899
1900 "b" gnus-article-view-part
1901 "\M-t" gnus-summary-toggle-display-buttonized
1902
1903 "V" gnus-summary-score-map
1904 "X" gnus-uu-extract-map
1905 "S" gnus-summary-send-map)
1906
1907;; Sort of orthogonal keymap
1908(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1909 "t" gnus-summary-tick-article-forward
1910 "!" gnus-summary-tick-article-forward
1911 "d" gnus-summary-mark-as-read-forward
1912 "r" gnus-summary-mark-as-read-forward
1913 "c" gnus-summary-clear-mark-forward
1914 " " gnus-summary-clear-mark-forward
1915 "e" gnus-summary-mark-as-expirable
1916 "x" gnus-summary-mark-as-expirable
1917 "?" gnus-summary-mark-as-dormant
1918 "b" gnus-summary-set-bookmark
1919 "B" gnus-summary-remove-bookmark
1920 "#" gnus-summary-mark-as-processable
1921 "\M-#" gnus-summary-unmark-as-processable
1922 "S" gnus-summary-limit-include-expunged
1923 "C" gnus-summary-catchup
1924 "H" gnus-summary-catchup-to-here
1925 "h" gnus-summary-catchup-from-here
1926 "\C-c" gnus-summary-catchup-all
1927 "k" gnus-summary-kill-same-subject-and-select
1928 "K" gnus-summary-kill-same-subject
1929 "P" gnus-uu-mark-map)
1930
1931(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1932 "c" gnus-summary-clear-above
1933 "u" gnus-summary-tick-above
1934 "m" gnus-summary-mark-above
1935 "k" gnus-summary-kill-below)
1936
1937(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1938 "/" gnus-summary-limit-to-subject
1939 "n" gnus-summary-limit-to-articles
01c52d31
MB
1940 "b" gnus-summary-limit-to-bodies
1941 "h" gnus-summary-limit-to-headers
23f87bed
MB
1942 "w" gnus-summary-pop-limit
1943 "s" gnus-summary-limit-to-subject
1944 "a" gnus-summary-limit-to-author
1945 "u" gnus-summary-limit-to-unread
1946 "m" gnus-summary-limit-to-marks
1947 "M" gnus-summary-limit-exclude-marks
1948 "v" gnus-summary-limit-to-score
1949 "*" gnus-summary-limit-include-cached
1950 "D" gnus-summary-limit-include-dormant
1951 "T" gnus-summary-limit-include-thread
1952 "d" gnus-summary-limit-exclude-dormant
1953 "t" gnus-summary-limit-to-age
1954 "." gnus-summary-limit-to-unseen
1955 "x" gnus-summary-limit-to-extra
1956 "p" gnus-summary-limit-to-display-predicate
1957 "E" gnus-summary-limit-include-expunged
1958 "c" gnus-summary-limit-exclude-childless-dormant
1959 "C" gnus-summary-limit-mark-excluded-as-read
1960 "o" gnus-summary-insert-old-articles
01c52d31
MB
1961 "N" gnus-summary-insert-new-articles
1962 "S" gnus-summary-limit-to-singletons
1963 "r" gnus-summary-limit-to-replied
1964 "R" gnus-summary-limit-to-recipient
1965 "A" gnus-summary-limit-to-address)
23f87bed
MB
1966
1967(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1968 "n" gnus-summary-next-unread-article
1969 "p" gnus-summary-prev-unread-article
1970 "N" gnus-summary-next-article
1971 "P" gnus-summary-prev-article
1972 "\C-n" gnus-summary-next-same-subject
1973 "\C-p" gnus-summary-prev-same-subject
1974 "\M-n" gnus-summary-next-unread-subject
1975 "\M-p" gnus-summary-prev-unread-subject
1976 "f" gnus-summary-first-unread-article
1977 "b" gnus-summary-best-unread-article
1978 "j" gnus-summary-goto-article
1979 "g" gnus-summary-goto-subject
1980 "l" gnus-summary-goto-last-article
1981 "o" gnus-summary-pop-article)
1982
1983(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1984 "k" gnus-summary-kill-thread
01c52d31 1985 "E" gnus-summary-expire-thread
23f87bed
MB
1986 "l" gnus-summary-lower-thread
1987 "i" gnus-summary-raise-thread
1988 "T" gnus-summary-toggle-threads
1989 "t" gnus-summary-rethread-current
1990 "^" gnus-summary-reparent-thread
01c52d31 1991 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1992 "s" gnus-summary-show-thread
1993 "S" gnus-summary-show-all-threads
1994 "h" gnus-summary-hide-thread
1995 "H" gnus-summary-hide-all-threads
1996 "n" gnus-summary-next-thread
1997 "p" gnus-summary-prev-thread
1998 "u" gnus-summary-up-thread
1999 "o" gnus-summary-top-thread
2000 "d" gnus-summary-down-thread
2001 "#" gnus-uu-mark-thread
2002 "\M-#" gnus-uu-unmark-thread)
2003
2004(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
2005 "g" gnus-summary-prepare
2006 "c" gnus-summary-insert-cached-articles
01c52d31
MB
2007 "d" gnus-summary-insert-dormant-articles
2008 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
2009
2010(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
2011 "c" gnus-summary-catchup-and-exit
2012 "C" gnus-summary-catchup-all-and-exit
2013 "E" gnus-summary-exit-no-update
2014 "Q" gnus-summary-exit
2015 "Z" gnus-summary-exit
2016 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2017 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2018 "R" gnus-summary-reselect-current-group
2019 "G" gnus-summary-rescan-group
2020 "N" gnus-summary-next-group
2021 "s" gnus-summary-save-newsrc
2022 "P" gnus-summary-prev-group)
2023
2024(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2025 " " gnus-summary-next-page
2026 "n" gnus-summary-next-page
2027 "\177" gnus-summary-prev-page
2028 [delete] gnus-summary-prev-page
2029 "p" gnus-summary-prev-page
2030 "\r" gnus-summary-scroll-up
2031 "\M-\r" gnus-summary-scroll-down
2032 "<" gnus-summary-beginning-of-article
2033 ">" gnus-summary-end-of-article
2034 "b" gnus-summary-beginning-of-article
2035 "e" gnus-summary-end-of-article
2036 "^" gnus-summary-refer-parent-article
2037 "r" gnus-summary-refer-parent-article
2038 "D" gnus-summary-enter-digest-group
2039 "R" gnus-summary-refer-references
2040 "T" gnus-summary-refer-thread
2041 "g" gnus-summary-show-article
2042 "s" gnus-summary-isearch-article
2043 "P" gnus-summary-print-article
01c52d31 2044 "S" gnus-sticky-article
23f87bed
MB
2045 "M" gnus-mailing-list-insinuate
2046 "t" gnus-article-babel)
2047
2048(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2049 "b" gnus-article-add-buttons
2050 "B" gnus-article-add-buttons-to-head
2051 "o" gnus-article-treat-overstrike
2052 "e" gnus-article-emphasize
2053 "w" gnus-article-fill-cited-article
2054 "Q" gnus-article-fill-long-lines
01c52d31 2055 "L" gnus-article-toggle-truncate-lines
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2056 "C" gnus-article-capitalize-sentences
2057 "c" gnus-article-remove-cr
2058 "q" gnus-article-de-quoted-unreadable
2059 "6" gnus-article-de-base64-unreadable
2060 "Z" gnus-article-decode-HZ
01c52d31 2061 "A" gnus-article-treat-ansi-sequences
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2062 "h" gnus-article-wash-html
2063 "u" gnus-article-unsplit-urls
2064 "s" gnus-summary-force-verify-and-decrypt
2065 "f" gnus-article-display-x-face
2066 "l" gnus-summary-stop-page-breaking
2067 "r" gnus-summary-caesar-message
2068 "m" gnus-summary-morse-message
2069 "t" gnus-summary-toggle-header
2070 "g" gnus-treat-smiley
2071 "v" gnus-summary-verbose-headers
2072 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2073 "p" gnus-article-verify-x-pgp-sig
01c52d31
MB
2074 "d" gnus-article-treat-dumbquotes
2075 "i" gnus-summary-idna-message)
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2076
2077(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2078 ;; mnemonic: deuglif*Y*
2079 "u" gnus-article-outlook-unwrap-lines
2080 "a" gnus-article-outlook-repair-attribution
2081 "c" gnus-article-outlook-rearrange-citation
2082 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2083
2084(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2085 "a" gnus-article-hide
2086 "h" gnus-article-hide-headers
2087 "b" gnus-article-hide-boring-headers
2088 "s" gnus-article-hide-signature
2089 "c" gnus-article-hide-citation
2090 "C" gnus-article-hide-citation-in-followups
2091 "l" gnus-article-hide-list-identifiers
2092 "B" gnus-article-strip-banner
2093 "P" gnus-article-hide-pem
2094 "\C-c" gnus-article-hide-citation-maybe)
2095
2096(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2097 "a" gnus-article-highlight
2098 "h" gnus-article-highlight-headers
2099 "c" gnus-article-highlight-citation
2100 "s" gnus-article-highlight-signature)
2101
2102(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2103 "f" gnus-article-treat-fold-headers
2104 "u" gnus-article-treat-unfold-headers
2105 "n" gnus-article-treat-fold-newsgroups)
2106
2107(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2108 "x" gnus-article-display-x-face
2109 "d" gnus-article-display-face
2110 "s" gnus-treat-smiley
2111 "D" gnus-article-remove-images
25f28806 2112 "W" gnus-html-show-images
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2113 "f" gnus-treat-from-picon
2114 "m" gnus-treat-mail-picon
2115 "n" gnus-treat-newsgroups-picon)
2116
2117(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2118 "w" gnus-article-decode-mime-words
2119 "c" gnus-article-decode-charset
2120 "v" gnus-mime-view-all-parts
2121 "b" gnus-article-view-part)
2122
2123(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2124 "z" gnus-article-date-ut
2125 "u" gnus-article-date-ut
2126 "l" gnus-article-date-local
2127 "p" gnus-article-date-english
2128 "e" gnus-article-date-lapsed
2129 "o" gnus-article-date-original
2130 "i" gnus-article-date-iso8601
2131 "s" gnus-article-date-user)
2132
2133(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2134 "t" gnus-article-remove-trailing-blank-lines
2135 "l" gnus-article-strip-leading-blank-lines
2136 "m" gnus-article-strip-multiple-blank-lines
2137 "a" gnus-article-strip-blank-lines
2138 "A" gnus-article-strip-all-blank-lines
2139 "s" gnus-article-strip-leading-space
2140 "e" gnus-article-strip-trailing-space
2141 "w" gnus-article-remove-leading-whitespace)
2142
2143(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2144 "v" gnus-version
2145 "f" gnus-summary-fetch-faq
2146 "d" gnus-summary-describe-group
2147 "h" gnus-summary-describe-briefly
2148 "i" gnus-info-find-node
2149 "c" gnus-group-fetch-charter
2150 "C" gnus-group-fetch-control)
2151
2152(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2153 "e" gnus-summary-expire-articles
2154 "\M-\C-e" gnus-summary-expire-articles-now
2155 "\177" gnus-summary-delete-article
2156 [delete] gnus-summary-delete-article
2157 [backspace] gnus-summary-delete-article
2158 "m" gnus-summary-move-article
2159 "r" gnus-summary-respool-article
2160 "w" gnus-summary-edit-article
2161 "c" gnus-summary-copy-article
2162 "B" gnus-summary-crosspost-article
2163 "q" gnus-summary-respool-query
2164 "t" gnus-summary-respool-trace
2165 "i" gnus-summary-import-article
2166 "I" gnus-summary-create-article
2167 "p" gnus-summary-article-posted-p)
2168
2169(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2170 "o" gnus-summary-save-article
2171 "m" gnus-summary-save-article-mail
2172 "F" gnus-summary-write-article-file
2173 "r" gnus-summary-save-article-rmail
2174 "f" gnus-summary-save-article-file
2175 "b" gnus-summary-save-article-body-file
26c9afc3 2176 "B" gnus-summary-write-article-body-file
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2177 "h" gnus-summary-save-article-folder
2178 "v" gnus-summary-save-article-vm
2179 "p" gnus-summary-pipe-output
c4d82de8 2180 "P" gnus-summary-muttprint)
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2181
2182(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2183 "b" gnus-summary-display-buttonized
2184 "m" gnus-summary-repair-multipart
2185 "v" gnus-article-view-part
2186 "o" gnus-article-save-part
01c52d31
MB
2187 "O" gnus-article-save-part-and-strip
2188 "r" gnus-article-replace-part
2189 "d" gnus-article-delete-part
2190 "t" gnus-article-view-part-as-type
2191 "j" gnus-article-jump-to-part
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2192 "c" gnus-article-copy-part
2193 "C" gnus-article-view-part-as-charset
2194 "e" gnus-article-view-part-externally
01c52d31 2195 "H" gnus-article-browse-html-article
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2196 "E" gnus-article-encrypt-body
2197 "i" gnus-article-inline-part
2198 "|" gnus-article-pipe-part)
2199
2200(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2201 "p" gnus-summary-mark-as-processable
2202 "u" gnus-summary-unmark-as-processable
2203 "U" gnus-summary-unmark-all-processable
2204 "v" gnus-uu-mark-over
2205 "s" gnus-uu-mark-series
2206 "r" gnus-uu-mark-region
2207 "g" gnus-uu-unmark-region
2208 "R" gnus-uu-mark-by-regexp
2209 "G" gnus-uu-unmark-by-regexp
2210 "t" gnus-uu-mark-thread
2211 "T" gnus-uu-unmark-thread
2212 "a" gnus-uu-mark-all
2213 "b" gnus-uu-mark-buffer
2214 "S" gnus-uu-mark-sparse
2215 "k" gnus-summary-kill-process-mark
2216 "y" gnus-summary-yank-process-mark
2217 "w" gnus-summary-save-process-mark
2218 "i" gnus-uu-invert-processable)
2219
2220(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2221 ;;"x" gnus-uu-extract-any
2222 "m" gnus-summary-save-parts
2223 "u" gnus-uu-decode-uu
2224 "U" gnus-uu-decode-uu-and-save
2225 "s" gnus-uu-decode-unshar
2226 "S" gnus-uu-decode-unshar-and-save
2227 "o" gnus-uu-decode-save
2228 "O" gnus-uu-decode-save
2229 "b" gnus-uu-decode-binhex
2230 "B" gnus-uu-decode-binhex
b890d447 2231 "Y" gnus-uu-decode-yenc
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2232 "p" gnus-uu-decode-postscript
2233 "P" gnus-uu-decode-postscript-and-save)
2234
2235(gnus-define-keys
2236 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2237 "u" gnus-uu-decode-uu-view
2238 "U" gnus-uu-decode-uu-and-save-view
2239 "s" gnus-uu-decode-unshar-view
2240 "S" gnus-uu-decode-unshar-and-save-view
2241 "o" gnus-uu-decode-save-view
2242 "O" gnus-uu-decode-save-view
2243 "b" gnus-uu-decode-binhex-view
2244 "B" gnus-uu-decode-binhex-view
2245 "p" gnus-uu-decode-postscript-view
2246 "P" gnus-uu-decode-postscript-and-save-view)
2247
2248(defvar gnus-article-post-menu nil)
2249
2250(defconst gnus-summary-menu-maxlen 20)
2251
2252(defun gnus-summary-menu-split (menu)
2253 ;; If we have lots of elements, divide them into groups of 20
2254 ;; and make a pane (or submenu) for each one.
2255 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2256 (let ((menu menu) sublists next
2257 (i 1))
2258 (while menu
2259 ;; Pull off the next gnus-summary-menu-maxlen elements
2260 ;; and make them the next element of sublist.
2261 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2262 (if next
2263 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2264 nil))
2265 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2266 (aref (car (last menu)) 0)) menu)
2267 sublists))
2268 (setq i (1+ i))
2269 (setq menu next))
2270 (nreverse sublists))
2271 ;; Few elements--put them all in one pane.
2272 menu))
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LMI
2273
2274(defun gnus-summary-make-menu-bar ()
2275 (gnus-turn-off-edit-menu 'summary)
2276
2277 (unless (boundp 'gnus-summary-misc-menu)
2278
2279 (easy-menu-define
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2280 gnus-summary-kill-menu gnus-summary-mode-map ""
2281 (cons
2282 "Score"
2283 (nconc
2284 (list
2285 ["Customize" gnus-score-customize t])
2286 (gnus-make-score-map 'increase)
2287 (gnus-make-score-map 'lower)
2288 '(("Mark"
2289 ["Kill below" gnus-summary-kill-below t]
2290 ["Mark above" gnus-summary-mark-above t]
2291 ["Tick above" gnus-summary-tick-above t]
2292 ["Clear above" gnus-summary-clear-above t])
2293 ["Current score" gnus-summary-current-score t]
2294 ["Set score" gnus-summary-set-score t]
2295 ["Switch current score file..." gnus-score-change-score-file t]
2296 ["Set mark below..." gnus-score-set-mark-below t]
2297 ["Set expunge below..." gnus-score-set-expunge-below t]
2298 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2299 ["Edit score file..." gnus-score-edit-file t]
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2300 ["Trace score" gnus-score-find-trace t]
2301 ["Find words" gnus-score-find-favourite-words t]
2302 ["Rescore buffer" gnus-summary-rescore t]
2303 ["Increase score..." gnus-summary-increase-score t]
2304 ["Lower score..." gnus-summary-lower-score t]))))
2305
2306 ;; Define both the Article menu in the summary buffer and the
2307 ;; equivalent Commands menu in the article buffer here for
2308 ;; consistency.
6748645f 2309 (let ((innards
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2310 `(("Hide"
2311 ["All" gnus-article-hide t]
2312 ["Headers" gnus-article-hide-headers t]
2313 ["Signature" gnus-article-hide-signature t]
2314 ["Citation" gnus-article-hide-citation t]
16409b0b 2315 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2316 ["Banner" gnus-article-strip-banner t]
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2317 ["Boring headers" gnus-article-hide-boring-headers t])
2318 ("Highlight"
2319 ["All" gnus-article-highlight t]
2320 ["Headers" gnus-article-highlight-headers t]
2321 ["Signature" gnus-article-highlight-signature t]
2322 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2323 ("MIME"
2324 ["Words" gnus-article-decode-mime-words t]
2325 ["Charset" gnus-article-decode-charset t]
2326 ["QP" gnus-article-de-quoted-unreadable t]
2327 ["Base64" gnus-article-de-base64-unreadable t]
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2328 ["View MIME buttons" gnus-summary-display-buttonized t]
2329 ["View all" gnus-mime-view-all-parts t]
2330 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2331 ["Encrypt body" gnus-article-encrypt-body
2332 :active (not (gnus-group-read-only-p))
2333 ,@(if (featurep 'xemacs) nil
2334 '(:help "Encrypt the message body on disk"))]
2335 ["Extract all parts..." gnus-summary-save-parts t]
2336 ("Multipart"
2337 ["Repair multipart" gnus-summary-repair-multipart t]
2338 ["Pipe part..." gnus-article-pipe-part t]
2339 ["Inline part" gnus-article-inline-part t]
01c52d31 2340 ["View part as type..." gnus-article-view-part-as-type t]
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2341 ["Encrypt body" gnus-article-encrypt-body
2342 :active (not (gnus-group-read-only-p))
2343 ,@(if (featurep 'xemacs) nil
2344 '(:help "Encrypt the message body on disk"))]
2345 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2346 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2347 ["View part with charset..." gnus-article-view-part-as-charset t]
2348 ["Copy part" gnus-article-copy-part t]
2349 ["Save part..." gnus-article-save-part t]
2350 ["View part" gnus-article-view-part t]))
2351 ("Date"
2352 ["Local" gnus-article-date-local t]
2353 ["ISO8601" gnus-article-date-iso8601 t]
2354 ["UT" gnus-article-date-ut t]
2355 ["Original" gnus-article-date-original t]
2356 ["Lapsed" gnus-article-date-lapsed t]
2357 ["User-defined" gnus-article-date-user t])
2358 ("Display"
2359 ["Remove images" gnus-article-remove-images t]
2360 ["Toggle smiley" gnus-treat-smiley t]
2361 ["Show X-Face" gnus-article-display-x-face t]
2362 ["Show picons in From" gnus-treat-from-picon t]
2363 ["Show picons in mail headers" gnus-treat-mail-picon t]
2364 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2365 ("View as different encoding"
2366 ,@(gnus-summary-menu-split
2367 (mapcar
2368 (lambda (cs)
2369 ;; Since easymenu under Emacs doesn't allow
2370 ;; lambda forms for menu commands, we should
2371 ;; provide intern'ed function symbols.
2372 (let ((command (intern (format "\
2373gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2374 (fset command
2375 `(lambda ()
2376 (interactive)
2377 (let ((gnus-summary-show-article-charset-alist
2378 '((1 . ,cs))))
2379 (gnus-summary-show-article 1))))
2380 `[,(symbol-name cs) ,command t]))
2381 (sort (if (fboundp 'coding-system-list)
2382 (coding-system-list)
2383 (mapcar 'car mm-mime-mule-charset-alist))
2384 'string<)))))
2385 ("Washing"
2386 ("Remove Blanks"
2387 ["Leading" gnus-article-strip-leading-blank-lines t]
2388 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2389 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2390 ["All of the above" gnus-article-strip-blank-lines t]
2391 ["All" gnus-article-strip-all-blank-lines t]
2392 ["Leading space" gnus-article-strip-leading-space t]
2393 ["Trailing space" gnus-article-strip-trailing-space t]
2394 ["Leading space in headers"
2395 gnus-article-remove-leading-whitespace t])
2396 ["Overstrike" gnus-article-treat-overstrike t]
2397 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2398 ["Emphasis" gnus-article-emphasize t]
2399 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2400 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2401 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2402 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2403 ["Remove CR" gnus-article-remove-cr t]
2404 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2405 ["Base64" gnus-article-de-base64-unreadable t]
2406 ["Rot 13" gnus-summary-caesar-message
2407 ,@(if (featurep 'xemacs) '(t)
2408 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2409 ["De-IDNA" gnus-summary-idna-message t]
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2410 ["Morse decode" gnus-summary-morse-message t]
2411 ["Unix pipe..." gnus-summary-pipe-message t]
2412 ["Add buttons" gnus-article-add-buttons t]
2413 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2414 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2415 ["Verbose header" gnus-summary-verbose-headers t]
2416 ["Toggle header" gnus-summary-toggle-header t]
2417 ["Unfold headers" gnus-article-treat-unfold-headers t]
2418 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2419 ["Html" gnus-article-wash-html t]
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2420 ["Unsplit URLs" gnus-article-unsplit-urls t]
2421 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2422 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2423 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
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2424 ("(Outlook) Deuglify"
2425 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2426 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2427 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2428 ["Full (Outlook) deuglify"
2429 gnus-article-outlook-deuglify-article t])
2430 )
2431 ("Output"
2432 ["Save in default format..." gnus-summary-save-article
2433 ,@(if (featurep 'xemacs) '(t)
2434 '(:help "Save article using default method"))]
2435 ["Save in file..." gnus-summary-save-article-file
2436 ,@(if (featurep 'xemacs) '(t)
2437 '(:help "Save article in file"))]
2438 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2439 ["Save in MH folder..." gnus-summary-save-article-folder t]
2440 ["Save in VM folder..." gnus-summary-save-article-vm t]
2441 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2442 ["Save body in file..." gnus-summary-save-article-body-file t]
2443 ["Pipe through a filter..." gnus-summary-pipe-output t]
23f87bed 2444 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
MB
2445 ["Print" gnus-summary-print-article
2446 ,@(if (featurep 'xemacs) '(t)
2447 '(:help "Generate and print a PostScript image"))])
2448 ("Copy, move,... (Backend)"
707f2b38 2449 ,@(if (featurep 'xemacs) nil
531e5812 2450 '(:help "Copying, moving, expiring articles..."))
23f87bed
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2451 ["Respool article..." gnus-summary-respool-article t]
2452 ["Move article..." gnus-summary-move-article
2453 (gnus-check-backend-function
2454 'request-move-article gnus-newsgroup-name)]
2455 ["Copy article..." gnus-summary-copy-article t]
2456 ["Crosspost article..." gnus-summary-crosspost-article
2457 (gnus-check-backend-function
2458 'request-replace-article gnus-newsgroup-name)]
2459 ["Import file..." gnus-summary-import-article
2460 (gnus-check-backend-function
2461 'request-accept-article gnus-newsgroup-name)]
2462 ["Create article..." gnus-summary-create-article
2463 (gnus-check-backend-function
2464 'request-accept-article gnus-newsgroup-name)]
2465 ["Check if posted" gnus-summary-article-posted-p t]
2466 ["Edit article" gnus-summary-edit-article
2467 (not (gnus-group-read-only-p))]
2468 ["Delete article" gnus-summary-delete-article
2469 (gnus-check-backend-function
2470 'request-expire-articles gnus-newsgroup-name)]
2471 ["Query respool" gnus-summary-respool-query t]
6748645f 2472 ["Trace respool" gnus-summary-respool-trace t]
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2473 ["Delete expirable articles" gnus-summary-expire-articles-now
2474 (gnus-check-backend-function
2475 'request-expire-articles gnus-newsgroup-name)])
2476 ("Extract"
2477 ["Uudecode" gnus-uu-decode-uu
2478 ,@(if (featurep 'xemacs) '(t)
2479 '(:help "Decode uuencoded article(s)"))]
2480 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2481 ["Unshar" gnus-uu-decode-unshar t]
2482 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2483 ["Save" gnus-uu-decode-save t]
2484 ["Binhex" gnus-uu-decode-binhex t]
2485 ["Postscript" gnus-uu-decode-postscript t]
2486 ["All MIME parts" gnus-summary-save-parts t])
2487 ("Cache"
2488 ["Enter article" gnus-cache-enter-article t]
2489 ["Remove article" gnus-cache-remove-article t])
16409b0b 2490 ["Translate" gnus-article-babel t]
23f87bed 2491 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2492 ["Make article buffer sticky" gnus-sticky-article t]
23f87bed
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2493 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2494 ["Isearch article..." gnus-summary-isearch-article t]
2495 ["Beginning of the article" gnus-summary-beginning-of-article t]
2496 ["End of the article" gnus-summary-end-of-article t]
2497 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2498 ["Fetch referenced articles" gnus-summary-refer-references t]
2499 ["Fetch current thread" gnus-summary-refer-thread t]
2500 ["Fetch article with id..." gnus-summary-refer-article t]
2501 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2502 ["Redisplay" gnus-summary-show-article t]
2503 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2504 (easy-menu-define
23f87bed
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2505 gnus-summary-article-menu gnus-summary-mode-map ""
2506 (cons "Article" innards))
6748645f 2507
1653df0f
SZ
2508 (if (not (keymapp gnus-summary-article-menu))
2509 (easy-menu-define
2510 gnus-article-commands-menu gnus-article-mode-map ""
2511 (cons "Commands" innards))
2512 ;; in Emacs, don't share menu.
a1506d29 2513 (setq gnus-article-commands-menu
1653df0f
SZ
2514 (copy-keymap gnus-summary-article-menu))
2515 (define-key gnus-article-mode-map [menu-bar commands]
2516 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2517
2518 (easy-menu-define
23f87bed
MB
2519 gnus-summary-thread-menu gnus-summary-mode-map ""
2520 '("Threads"
2521 ["Find all messages in thread" gnus-summary-refer-thread t]
2522 ["Toggle threading" gnus-summary-toggle-threads t]
2523 ["Hide threads" gnus-summary-hide-all-threads t]
2524 ["Show threads" gnus-summary-show-all-threads t]
2525 ["Hide thread" gnus-summary-hide-thread t]
2526 ["Show thread" gnus-summary-show-thread t]
2527 ["Go to next thread" gnus-summary-next-thread t]
2528 ["Go to previous thread" gnus-summary-prev-thread t]
2529 ["Go down thread" gnus-summary-down-thread t]
2530 ["Go up thread" gnus-summary-up-thread t]
2531 ["Top of thread" gnus-summary-top-thread t]
2532 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2533 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2534 ["Lower thread score" gnus-summary-lower-thread t]
2535 ["Raise thread score" gnus-summary-raise-thread t]
2536 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2537
2538 (easy-menu-define
23f87bed
MB
2539 gnus-summary-post-menu gnus-summary-mode-map ""
2540 `("Post"
2541 ["Send a message (mail or news)" gnus-summary-post-news
2542 ,@(if (featurep 'xemacs) '(t)
531e5812 2543 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2544 ["Followup" gnus-summary-followup
2545 ,@(if (featurep 'xemacs) '(t)
2546 '(:help "Post followup to this article"))]
2547 ["Followup and yank" gnus-summary-followup-with-original
2548 ,@(if (featurep 'xemacs) '(t)
2549 '(:help "Post followup to this article, quoting its contents"))]
2550 ["Supersede article" gnus-summary-supersede-article t]
2551 ["Cancel article" gnus-summary-cancel-article
2552 ,@(if (featurep 'xemacs) '(t)
2553 '(:help "Cancel an article you posted"))]
2554 ["Reply" gnus-summary-reply t]
2555 ["Reply and yank" gnus-summary-reply-with-original t]
2556 ["Wide reply" gnus-summary-wide-reply t]
2557 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2558 ,@(if (featurep 'xemacs) '(t)
2559 '(:help "Mail a reply, quoting this article"))]
2560 ["Very wide reply" gnus-summary-very-wide-reply t]
2561 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2562 ,@(if (featurep 'xemacs) '(t)
2563 '(:help "Mail a very wide reply, quoting this article"))]
2564 ["Mail forward" gnus-summary-mail-forward t]
2565 ["Post forward" gnus-summary-post-forward t]
2566 ["Digest and mail" gnus-uu-digest-mail-forward t]
2567 ["Digest and post" gnus-uu-digest-post-forward t]
2568 ["Resend message" gnus-summary-resend-message t]
2569 ["Resend message edit" gnus-summary-resend-message-edit t]
2570 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2571 ["Send a mail" gnus-summary-mail-other-window t]
2572 ["Create a local message" gnus-summary-news-other-window t]
2573 ["Uuencode and post" gnus-uu-post-news
2574 ,@(if (featurep 'xemacs) '(t)
2575 '(:help "Post a uuencoded article"))]
2576 ["Followup via news" gnus-summary-followup-to-mail t]
2577 ["Followup via news and yank"
2578 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2579 ["Strip signature on reply"
2580 (lambda ()
2581 (interactive)
2582 (if (not (memq message-cite-function
2583 '(message-cite-original-without-signature
2584 message-cite-original)))
2585 ;; Stupid workaround for XEmacs not honoring :visible.
2586 (message "Can't toggle this value of `message-cite-function'")
2587 (setq message-cite-function
2588 (if (eq message-cite-function
2589 'message-cite-original-without-signature)
2590 'message-cite-original
2591 'message-cite-original-without-signature))))
2592 ;; XEmacs barfs on :visible.
2593 ,@(if (featurep 'xemacs) nil
2594 '(:visible (memq message-cite-function
2595 '(message-cite-original-without-signature
2596 message-cite-original))))
2597 :style toggle
2598 :selected (eq message-cite-function
2599 'message-cite-original-without-signature)
2600 ,@(if (featurep 'xemacs) nil
2601 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2602 ;;("Draft"
2603 ;;["Send" gnus-summary-send-draft t]
2604 ;;["Send bounced" gnus-resend-bounced-mail t])
2605 ))
2606
2607 (cond
2608 ((not (keymapp gnus-summary-post-menu))
2609 (setq gnus-article-post-menu gnus-summary-post-menu))
2610 ((not gnus-article-post-menu)
2611 ;; Don't share post menu.
2612 (setq gnus-article-post-menu
2613 (copy-keymap gnus-summary-post-menu))))
2614 (define-key gnus-article-mode-map [menu-bar post]
2615 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2616
2617 (easy-menu-define
23f87bed
MB
2618 gnus-summary-misc-menu gnus-summary-mode-map ""
2619 `("Gnus"
2620 ("Mark Read"
2621 ["Mark as read" gnus-summary-mark-as-read-forward t]
2622 ["Mark same subject and select"
2623 gnus-summary-kill-same-subject-and-select t]
2624 ["Mark same subject" gnus-summary-kill-same-subject t]
2625 ["Catchup" gnus-summary-catchup
2626 ,@(if (featurep 'xemacs) '(t)
2627 '(:help "Mark unread articles in this group as read"))]
2628 ["Catchup all" gnus-summary-catchup-all t]
2629 ["Catchup to here" gnus-summary-catchup-to-here t]
2630 ["Catchup from here" gnus-summary-catchup-from-here t]
2631 ["Catchup region" gnus-summary-mark-region-as-read
2632 (gnus-mark-active-p)]
2633 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2634 ("Mark Various"
2635 ["Tick" gnus-summary-tick-article-forward t]
2636 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2637 ["Remove marks" gnus-summary-clear-mark-forward t]
2638 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2639 ["Set bookmark" gnus-summary-set-bookmark t]
2640 ["Remove bookmark" gnus-summary-remove-bookmark t])
2641 ("Limit to"
2642 ["Marks..." gnus-summary-limit-to-marks t]
2643 ["Subject..." gnus-summary-limit-to-subject t]
2644 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2645 ["Recipient..." gnus-summary-limit-to-recipient t]
2646 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2647 ["Age..." gnus-summary-limit-to-age t]
2648 ["Extra..." gnus-summary-limit-to-extra t]
2649 ["Score..." gnus-summary-limit-to-score t]
2650 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2651 ["Unread" gnus-summary-limit-to-unread t]
2652 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2653 ["Singletons" gnus-summary-limit-to-singletons t]
2654 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2655 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2656 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2657 ["Pop limit" gnus-summary-pop-limit t]
2658 ["Show dormant" gnus-summary-limit-include-dormant t]
2659 ["Hide childless dormant"
2660 gnus-summary-limit-exclude-childless-dormant t]
2661 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2662 ["Hide marked" gnus-summary-limit-exclude-marks t]
2663 ["Show expunged" gnus-summary-limit-include-expunged t])
2664 ("Process Mark"
2665 ["Set mark" gnus-summary-mark-as-processable t]
2666 ["Remove mark" gnus-summary-unmark-as-processable t]
2667 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2668 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2669 ["Mark above" gnus-uu-mark-over t]
2670 ["Mark series" gnus-uu-mark-series t]
2671 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2672 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2673 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2674 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2675 ["Mark all" gnus-uu-mark-all t]
2676 ["Mark buffer" gnus-uu-mark-buffer t]
2677 ["Mark sparse" gnus-uu-mark-sparse t]
2678 ["Mark thread" gnus-uu-mark-thread t]
2679 ["Unmark thread" gnus-uu-unmark-thread t]
2680 ("Process Mark Sets"
2681 ["Kill" gnus-summary-kill-process-mark t]
2682 ["Yank" gnus-summary-yank-process-mark
2683 gnus-newsgroup-process-stack]
2684 ["Save" gnus-summary-save-process-mark t]
2685 ["Run command on marked..." gnus-summary-universal-argument t]))
ec7995fa 2686 ("Registry Marks")
23f87bed
MB
2687 ("Scroll article"
2688 ["Page forward" gnus-summary-next-page
2689 ,@(if (featurep 'xemacs) '(t)
2690 '(:help "Show next page of article"))]
2691 ["Page backward" gnus-summary-prev-page
2692 ,@(if (featurep 'xemacs) '(t)
2693 '(:help "Show previous page of article"))]
2694 ["Line forward" gnus-summary-scroll-up t])
2695 ("Move"
2696 ["Next unread article" gnus-summary-next-unread-article t]
2697 ["Previous unread article" gnus-summary-prev-unread-article t]
2698 ["Next article" gnus-summary-next-article t]
2699 ["Previous article" gnus-summary-prev-article t]
2700 ["Next unread subject" gnus-summary-next-unread-subject t]
2701 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2702 ["Next article same subject" gnus-summary-next-same-subject t]
2703 ["Previous article same subject" gnus-summary-prev-same-subject t]
2704 ["First unread article" gnus-summary-first-unread-article t]
2705 ["Best unread article" gnus-summary-best-unread-article t]
2706 ["Go to subject number..." gnus-summary-goto-subject t]
2707 ["Go to article number..." gnus-summary-goto-article t]
2708 ["Go to the last article" gnus-summary-goto-last-article t]
2709 ["Pop article off history" gnus-summary-pop-article t])
2710 ("Sort"
2711 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2712 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2713 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2714 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2715 ["Sort by subject" gnus-summary-sort-by-subject t]
2716 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2717 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2718 ["Sort by score" gnus-summary-sort-by-score t]
2719 ["Sort by lines" gnus-summary-sort-by-lines t]
2720 ["Sort by characters" gnus-summary-sort-by-chars t]
2721 ["Randomize" gnus-summary-sort-by-random t]
2722 ["Original sort" gnus-summary-sort-by-original t])
2723 ("Help"
2724 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2725 ["Describe group" gnus-summary-describe-group t]
2726 ["Fetch charter" gnus-group-fetch-charter
2727 ,@(if (featurep 'xemacs) nil
2728 '(:help "Display the charter of the current group"))]
2729 ["Fetch control message" gnus-group-fetch-control
2730 ,@(if (featurep 'xemacs) nil
2731 '(:help "Display the archived control message for the current group"))]
2732 ["Read manual" gnus-info-find-node t])
2733 ("Modes"
2734 ["Pick and read" gnus-pick-mode t]
2735 ["Binary" gnus-binary-mode t])
2736 ("Regeneration"
2737 ["Regenerate" gnus-summary-prepare t]
2738 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2739 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2740 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2741 ["Toggle threading" gnus-summary-toggle-threads t])
2742 ["See old articles" gnus-summary-insert-old-articles t]
2743 ["See new articles" gnus-summary-insert-new-articles t]
2744 ["Filter articles..." gnus-summary-execute-command t]
2745 ["Run command on articles..." gnus-summary-universal-argument t]
2746 ["Search articles forward..." gnus-summary-search-article-forward t]
2747 ["Search articles backward..." gnus-summary-search-article-backward t]
2748 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2749 ["Expand window" gnus-summary-expand-window t]
2750 ["Expire expirable articles" gnus-summary-expire-articles
2751 (gnus-check-backend-function
2752 'request-expire-articles gnus-newsgroup-name)]
2753 ["Edit local kill file" gnus-summary-edit-local-kill t]
2754 ["Edit main kill file" gnus-summary-edit-global-kill t]
2755 ["Edit group parameters" gnus-summary-edit-parameters t]
2756 ["Customize group parameters" gnus-summary-customize-parameters t]
2757 ["Send a bug report" gnus-bug t]
2758 ("Exit"
2759 ["Catchup and exit" gnus-summary-catchup-and-exit
2760 ,@(if (featurep 'xemacs) '(t)
2761 '(:help "Mark unread articles in this group as read, then exit"))]
2762 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2763 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2764 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2765 ["Exit group" gnus-summary-exit
2766 ,@(if (featurep 'xemacs) '(t)
2767 '(:help "Exit current group, return to group selection mode"))]
2768 ["Exit group without updating" gnus-summary-exit-no-update t]
2769 ["Exit and goto next group" gnus-summary-next-group t]
2770 ["Exit and goto prev group" gnus-summary-prev-group t]
2771 ["Reselect group" gnus-summary-reselect-current-group t]
2772 ["Rescan group" gnus-summary-rescan-group t]
2773 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2774
6748645f 2775 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2776
60bd5589
DL
2777(defvar gnus-summary-tool-bar-map nil)
2778
18c06a99
RS
2779;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2780;; affect _new_ message buffers. We might add a function that walks thru all
2781;; summary-mode buffers and force the update.
2782(defun gnus-summary-tool-bar-update (&optional symbol value)
2783 "Update summary mode toolbar.
2784Setter function for custom variables."
2785 (setq-default gnus-summary-tool-bar-map nil)
2786 (when symbol
2787 ;; When used as ":set" function:
2788 (set-default symbol value))
2789 (when (gnus-buffer-live-p gnus-summary-buffer)
2790 (with-current-buffer gnus-summary-buffer
2791 (gnus-summary-make-tool-bar))))
2792
2793(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2794 'gnus-summary-tool-bar-gnome
2795 'gnus-summary-tool-bar-retro)
2796 "Specifies the Gnus summary tool bar.
2797
2798It can be either a list or a symbol refering to a list. See
2799`gmm-tool-bar-from-list' for the format of the list. The
2800default key map is `gnus-summary-mode-map'.
2801
2802Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2803`gnus-summary-tool-bar-retro'."
2804 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2805 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2806 (repeat :tag "User defined list" gmm-tool-bar-item)
2807 (symbol))
330f707b 2808 :version "23.1" ;; No Gnus
18c06a99
RS
2809 :initialize 'custom-initialize-default
2810 :set 'gnus-summary-tool-bar-update
2811 :group 'gnus-summary)
2812
2813(defcustom gnus-summary-tool-bar-gnome
2814 '((gnus-summary-post-news "mail/compose" nil)
2815 (gnus-summary-insert-new-articles "mail/inbox" nil
2816 :visible (or (not gnus-agent)
2817 gnus-plugged))
2818 (gnus-summary-reply-with-original "mail/reply")
2819 (gnus-summary-reply "mail/reply" nil :visible nil)
2820 (gnus-summary-followup-with-original "mail/reply-all")
2821 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2822 (gnus-summary-mail-forward "mail/forward")
2823 (gnus-summary-save-article "mail/save")
2824 (gnus-summary-search-article-forward "search" nil :visible nil)
2825 (gnus-summary-print-article "print")
2826 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2827 ;; Some new commands that may need more suitable icons:
2828 (gnus-summary-save-newsrc "save" nil :visible nil)
2829 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2830 (gnus-summary-prev-article "left-arrow")
2831 (gnus-summary-next-article "right-arrow")
2832 (gnus-summary-next-page "next-page")
2833 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2834 ;;
2835 ;; Maybe some sort-by-... could be added:
2836 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2837 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2838 (gnus-summary-mark-as-expirable
2839 "delete" nil
2840 :visible (gnus-check-backend-function 'request-expire-articles
2841 gnus-newsgroup-name))
2842 (gnus-summary-mark-as-spam
2843 "mail/spam" t
2844 :visible (and (fboundp 'spam-group-ham-contents-p)
2845 (spam-group-ham-contents-p gnus-newsgroup-name))
2846 :help "Mark as spam")
2847 (gnus-summary-mark-as-read-forward
2848 "mail/not-spam" nil
2849 :visible (and (fboundp 'spam-group-spam-contents-p)
2850 (spam-group-spam-contents-p gnus-newsgroup-name)))
2851 ;;
2852 (gnus-summary-exit "exit")
2853 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2854 (gnus-info-find-node "help"))
2855 "List of functions for the summary tool bar (GNOME style).
2856
2857See `gmm-tool-bar-from-list' for the format of the list."
2858 :type '(repeat gmm-tool-bar-item)
330f707b 2859 :version "23.1" ;; No Gnus
18c06a99
RS
2860 :initialize 'custom-initialize-default
2861 :set 'gnus-summary-tool-bar-update
2862 :group 'gnus-summary)
2863
2864(defcustom gnus-summary-tool-bar-retro
2865 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2866 (gnus-summary-next-unread-article "gnus/next-ur")
2867 (gnus-summary-post-news "gnus/post")
2868 (gnus-summary-followup-with-original "gnus/fuwo")
2869 (gnus-summary-followup "gnus/followup")
2870 (gnus-summary-reply-with-original "gnus/reply-wo")
2871 (gnus-summary-reply "gnus/reply")
2872 (gnus-summary-caesar-message "gnus/rot13")
2873 (gnus-uu-decode-uu "gnus/uu-decode")
2874 (gnus-summary-save-article-file "gnus/save-aif")
2875 (gnus-summary-save-article "gnus/save-art")
2876 (gnus-uu-post-news "gnus/uu-post")
2877 (gnus-summary-catchup "gnus/catchup")
2878 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2879 (gnus-summary-exit "gnus/exit-summ")
2880 ;; Some new command that may need more suitable icons:
2881 (gnus-summary-print-article "gnus/print" nil :visible nil)
2882 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2883 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2884 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2885 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2886 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2887 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2888 ;;
2889 (gnus-info-find-node "gnus/help" nil :visible nil))
2890 "List of functions for the summary tool bar (retro look).
2891
2892See `gmm-tool-bar-from-list' for the format of the list."
2893 :type '(repeat gmm-tool-bar-item)
330f707b 2894 :version "23.1" ;; No Gnus
18c06a99
RS
2895 :initialize 'custom-initialize-default
2896 :set 'gnus-summary-tool-bar-update
2897 :group 'gnus-summary)
2898
2899(defcustom gnus-summary-tool-bar-zap-list t
2900 "List of icon items from the global tool bar.
2901These items are not displayed in the Gnus summary mode tool bar.
2902
2903See `gmm-tool-bar-from-list' for the format of the list."
2904 :type 'gmm-tool-bar-zap-list
330f707b 2905 :version "23.1" ;; No Gnus
18c06a99
RS
2906 :initialize 'custom-initialize-default
2907 :set 'gnus-summary-tool-bar-update
2908 :group 'gnus-summary)
2909
2910(defvar image-load-path)
f654fa04 2911(defvar tool-bar-map)
18c06a99
RS
2912
2913(defun gnus-summary-make-tool-bar (&optional force)
2914 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2915When FORCE, rebuild the tool bar."
2916 (when (and (not (featurep 'xemacs))
2917 (boundp 'tool-bar-mode)
2918 tool-bar-mode
2919 (or (not gnus-summary-tool-bar-map) force))
2920 (let* ((load-path
2921 (gmm-image-load-path-for-library "gnus"
2922 "mail/save.xpm"
2923 nil t))
2924 (image-load-path (cons (car load-path)
2925 (when (boundp 'image-load-path)
2926 image-load-path)))
2927 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2928 gnus-summary-tool-bar-zap-list
2929 'gnus-summary-mode-map)))
2930 (when map
2931 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2932 ;; uses it's value.
2933 (setq gnus-summary-tool-bar-map map))))
2934 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2935
eec82323
LMI
2936(defun gnus-score-set-default (var value)
2937 "A version of set that updates the GNU Emacs menu-bar."
2938 (set var value)
2939 ;; It is the message that forces the active status to be updated.
2940 (message ""))
2941
2942(defun gnus-make-score-map (type)
2943 "Make a summary score map of type TYPE."
2944 (if t
2945 nil
2946 (let ((headers '(("author" "from" string)
2947 ("subject" "subject" string)
2948 ("article body" "body" string)
2949 ("article head" "head" string)
2950 ("xref" "xref" string)
16409b0b 2951 ("extra header" "extra" string)
eec82323
LMI
2952 ("lines" "lines" number)
2953 ("followups to author" "followup" string)))
2954 (types '((number ("less than" <)
2955 ("greater than" >)
2956 ("equal" =))
2957 (string ("substring" s)
2958 ("exact string" e)
2959 ("fuzzy string" f)
2960 ("regexp" r))))
2961 (perms '(("temporary" (current-time-string))
2962 ("permanent" nil)
2963 ("immediate" now)))
2964 header)
2965 (list
2966 (apply
2967 'nconc
2968 (list
2969 (if (eq type 'lower)
2970 "Lower score"
2971 "Increase score"))
2972 (let (outh)
2973 (while headers
2974 (setq header (car headers))
2975 (setq outh
2976 (cons
2977 (apply
2978 'nconc
2979 (list (car header))
2980 (let ((ts (cdr (assoc (nth 2 header) types)))
2981 outt)
2982 (while ts
2983 (setq outt
2984 (cons
2985 (apply
2986 'nconc
2987 (list (caar ts))
2988 (let ((ps perms)
2989 outp)
2990 (while ps
2991 (setq outp
2992 (cons
2993 (vector
2994 (caar ps)
2995 (list
2996 'gnus-summary-score-entry
2997 (nth 1 header)
2998 (if (or (string= (nth 1 header)
2999 "head")
3000 (string= (nth 1 header)
3001 "body"))
3002 ""
3003 (list 'gnus-summary-header
3004 (nth 1 header)))
3005 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3006 (list 'gnus-score-delta-default
3007 nil)
eec82323
LMI
3008 (nth 1 (car ps))
3009 t)
3010 t)
3011 outp))
3012 (setq ps (cdr ps)))
3013 (list (nreverse outp))))
3014 outt))
3015 (setq ts (cdr ts)))
3016 (list (nreverse outt))))
3017 outh))
3018 (setq headers (cdr headers)))
3019 (list (nreverse outh))))))))
3020
704f1663
GM
3021
3022(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
398a825b 3023(defvar bookmark-make-record-function)
eec82323
LMI
3024\f
3025
3026(defun gnus-summary-mode (&optional group)
3027 "Major mode for reading articles.
3028
3029All normal editing commands are switched off.
3030\\<gnus-summary-mode-map>
3031Each line in this buffer represents one article. To read an
3032article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3033and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3034respectively.
3035
3036You can also post articles and send mail from this buffer. To
23f87bed 3037follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3038of an article, type `\\[gnus-summary-reply]'.
3039
3040There are approx. one gazillion commands you can execute in this
3041buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3042
3043The following commands are available:
3044
3045\\{gnus-summary-mode-map}"
3046 (interactive)
eec82323 3047 (kill-all-local-variables)
01c52d31
MB
3048 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3049 (gnus-summary-make-local-variables))
3050 (gnus-summary-make-local-variables)
3051 (setq gnus-newsgroup-name group)
60bd5589
DL
3052 (when (gnus-visual-p 'summary-menu 'menu)
3053 (gnus-summary-make-menu-bar)
3054 (gnus-summary-make-tool-bar))
eec82323
LMI
3055 (gnus-make-thread-indent-array)
3056 (gnus-simplify-mode-line)
3057 (setq major-mode 'gnus-summary-mode)
3058 (setq mode-name "Summary")
eec82323 3059 (use-local-map gnus-summary-mode-map)
16409b0b 3060 (buffer-disable-undo)
01c52d31
MB
3061 (setq buffer-read-only t ;Disable modification
3062 show-trailing-whitespace nil)
eec82323 3063 (setq truncate-lines t)
9bfd9a76 3064 (add-to-invisibility-spec '(gnus-sum . t))
eec82323
LMI
3065 (gnus-summary-set-display-table)
3066 (gnus-set-default-directory)
eec82323
LMI
3067 (make-local-variable 'gnus-summary-line-format)
3068 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3069 (make-local-variable 'gnus-summary-dummy-line-format)
3070 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3071 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3072 (gnus-make-local-hook 'pre-command-hook)
6748645f 3073 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3074 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3075 (turn-on-gnus-mailing-list-mode)
87545352 3076 (mm-enable-multibyte)
45be326a
TV
3077 (set (make-local-variable 'bookmark-make-record-function)
3078 'gnus-summary-bookmark-make-record)
eec82323
LMI
3079 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3080 (gnus-update-summary-mark-positions))
3081
3082(defun gnus-summary-make-local-variables ()
3083 "Make all the local summary buffer variables."
16409b0b
GM
3084 (let (global)
3085 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3086 (if (consp local)
3087 (progn
3088 (if (eq (cdr local) 'global)
3089 ;; Copy the global value of the variable.
3090 (setq global (symbol-value (car local)))
3091 ;; Use the value from the list.
3092 (setq global (eval (cdr local))))
16409b0b 3093 (set (make-local-variable (car local)) global))
eec82323 3094 ;; Simple nil-valued local variable.
16409b0b 3095 (set (make-local-variable local) nil)))))
eec82323
LMI
3096
3097(defun gnus-summary-clear-local-variables ()
3098 (let ((locals gnus-summary-local-variables))
3099 (while locals
3100 (if (consp (car locals))
01c52d31 3101 (and (symbolp (caar locals))
eec82323 3102 (set (caar locals) nil))
01c52d31 3103 (and (symbolp (car locals))
eec82323
LMI
3104 (set (car locals) nil)))
3105 (setq locals (cdr locals)))))
3106
3107;; Summary data functions.
3108
3109(defmacro gnus-data-number (data)
3110 `(car ,data))
3111
3112(defmacro gnus-data-set-number (data number)
3113 `(setcar ,data ,number))
3114
3115(defmacro gnus-data-mark (data)
3116 `(nth 1 ,data))
3117
3118(defmacro gnus-data-set-mark (data mark)
3119 `(setcar (nthcdr 1 ,data) ,mark))
3120
3121(defmacro gnus-data-pos (data)
3122 `(nth 2 ,data))
3123
3124(defmacro gnus-data-set-pos (data pos)
3125 `(setcar (nthcdr 2 ,data) ,pos))
3126
3127(defmacro gnus-data-header (data)
3128 `(nth 3 ,data))
3129
3130(defmacro gnus-data-set-header (data header)
3131 `(setf (nth 3 ,data) ,header))
3132
3133(defmacro gnus-data-level (data)
3134 `(nth 4 ,data))
3135
3136(defmacro gnus-data-unread-p (data)
3137 `(= (nth 1 ,data) gnus-unread-mark))
3138
3139(defmacro gnus-data-read-p (data)
3140 `(/= (nth 1 ,data) gnus-unread-mark))
3141
3142(defmacro gnus-data-pseudo-p (data)
3143 `(consp (nth 3 ,data)))
3144
3145(defmacro gnus-data-find (number)
3146 `(assq ,number gnus-newsgroup-data))
3147
3148(defmacro gnus-data-find-list (number &optional data)
3149 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3150 (memq (assq ,number bdata)
3151 bdata)))
3152
3153(defmacro gnus-data-make (number mark pos header level)
3154 `(list ,number ,mark ,pos ,header ,level))
3155
3156(defun gnus-data-enter (after-article number mark pos header level offset)
3157 (let ((data (gnus-data-find-list after-article)))
3158 (unless data
3159 (error "No such article: %d" after-article))
3160 (setcdr data (cons (gnus-data-make number mark pos header level)
3161 (cdr data)))
3162 (setq gnus-newsgroup-data-reverse nil)
3163 (gnus-data-update-list (cddr data) offset)))
3164
3165(defun gnus-data-enter-list (after-article list &optional offset)
3166 (when list
3167 (let ((data (and after-article (gnus-data-find-list after-article)))
3168 (ilist list))
6748645f
LMI
3169 (if (not (or data
3170 after-article))
3171 (let ((odata gnus-newsgroup-data))
3172 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3173 (when offset
6748645f 3174 (gnus-data-update-list odata offset)))
01c52d31 3175 ;; Find the last element in the list to be spliced into the main
6748645f 3176 ;; list.
01c52d31 3177 (setq list (last list))
6748645f
LMI
3178 (if (not data)
3179 (progn
3180 (setcdr list gnus-newsgroup-data)
3181 (setq gnus-newsgroup-data ilist)
3182 (when offset
3183 (gnus-data-update-list (cdr list) offset)))
3184 (setcdr list (cdr data))
3185 (setcdr data ilist)
3186 (when offset
3187 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3188 (setq gnus-newsgroup-data-reverse nil))))
3189
3190(defun gnus-data-remove (article &optional offset)
3191 (let ((data gnus-newsgroup-data))
3192 (if (= (gnus-data-number (car data)) article)
3193 (progn
3194 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3195 gnus-newsgroup-data-reverse nil)
3196 (when offset
3197 (gnus-data-update-list gnus-newsgroup-data offset)))
3198 (while (cdr data)
3199 (when (= (gnus-data-number (cadr data)) article)
3200 (setcdr data (cddr data))
3201 (when offset
3202 (gnus-data-update-list (cdr data) offset))
3203 (setq data nil
3204 gnus-newsgroup-data-reverse nil))
3205 (setq data (cdr data))))))
3206
3207(defmacro gnus-data-list (backward)
3208 `(if ,backward
3209 (or gnus-newsgroup-data-reverse
3210 (setq gnus-newsgroup-data-reverse
3211 (reverse gnus-newsgroup-data)))
3212 gnus-newsgroup-data))
3213
3214(defun gnus-data-update-list (data offset)
3215 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3216 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3217 (while data
3218 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3219 (setq data (cdr data))))
3220
eec82323
LMI
3221(defun gnus-summary-article-pseudo-p (article)
3222 "Say whether this article is a pseudo article or not."
3223 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3224
3225(defmacro gnus-summary-article-sparse-p (article)
3226 "Say whether this article is a sparse article or not."
a8151ef7 3227 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3228
3229(defmacro gnus-summary-article-ancient-p (article)
3230 "Say whether this article is a sparse article or not."
3231 `(memq ,article gnus-newsgroup-ancient))
3232
3233(defun gnus-article-parent-p (number)
3234 "Say whether this article is a parent or not."
3235 (let ((data (gnus-data-find-list number)))
23f87bed 3236 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3237 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3238 (gnus-data-level (nth 1 data))))))
3239
3240(defun gnus-article-children (number)
3241 "Return a list of all children to NUMBER."
3242 (let* ((data (gnus-data-find-list number))
3243 (level (gnus-data-level (car data)))
3244 children)
3245 (setq data (cdr data))
3246 (while (and data
3247 (= (gnus-data-level (car data)) (1+ level)))
3248 (push (gnus-data-number (car data)) children)
3249 (setq data (cdr data)))
3250 children))
3251
3252(defmacro gnus-summary-skip-intangible ()
3253 "If the current article is intangible, then jump to a different article."
3254 '(let ((to (get-text-property (point) 'gnus-intangible)))
3255 (and to (gnus-summary-goto-subject to))))
3256
3257(defmacro gnus-summary-article-intangible-p ()
3258 "Say whether this article is intangible or not."
3259 '(get-text-property (point) 'gnus-intangible))
3260
3261(defun gnus-article-read-p (article)
3262 "Say whether ARTICLE is read or not."
3263 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3264 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3265 (memq article gnus-newsgroup-unreads)
3266 (memq article gnus-newsgroup-unselected)
3267 (memq article gnus-newsgroup-dormant))))
3268
3269;; Some summary mode macros.
3270
3271(defmacro gnus-summary-article-number ()
3272 "The article number of the article on the current line.
8f688cb0 3273If there isn't an article number here, then we return the current
eec82323
LMI
3274article number."
3275 '(progn
3276 (gnus-summary-skip-intangible)
3277 (or (get-text-property (point) 'gnus-number)
3278 (gnus-summary-last-subject))))
3279
3280(defmacro gnus-summary-article-header (&optional number)
6748645f 3281 "Return the header of article NUMBER."
eec82323
LMI
3282 `(gnus-data-header (gnus-data-find
3283 ,(or number '(gnus-summary-article-number)))))
3284
3285(defmacro gnus-summary-thread-level (&optional number)
6748645f 3286 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3287 `(if (and (eq gnus-summary-make-false-root 'dummy)
3288 (get-text-property (point) 'gnus-intangible))
3289 0
3290 (gnus-data-level (gnus-data-find
3291 ,(or number '(gnus-summary-article-number))))))
3292
3293(defmacro gnus-summary-article-mark (&optional number)
6748645f 3294 "Return the mark of article NUMBER."
eec82323
LMI
3295 `(gnus-data-mark (gnus-data-find
3296 ,(or number '(gnus-summary-article-number)))))
3297
3298(defmacro gnus-summary-article-pos (&optional number)
6748645f 3299 "Return the position of the line of article NUMBER."
eec82323
LMI
3300 `(gnus-data-pos (gnus-data-find
3301 ,(or number '(gnus-summary-article-number)))))
3302
3303(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3304(defmacro gnus-summary-article-subject (&optional number)
3305 "Return current subject string or nil if nothing."
3306 `(let ((headers
3307 ,(if number
3308 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3309 '(gnus-data-header (assq (gnus-summary-article-number)
3310 gnus-newsgroup-data)))))
3311 (and headers
3312 (vectorp headers)
3313 (mail-header-subject headers))))
3314
3315(defmacro gnus-summary-article-score (&optional number)
3316 "Return current article score."
3317 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3318 gnus-newsgroup-scored))
3319 gnus-summary-default-score 0))
3320
3321(defun gnus-summary-article-children (&optional number)
6748645f 3322 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3323 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3324 (level (gnus-data-level (car data)))
3325 l children)
3326 (while (and (setq data (cdr data))
3327 (> (setq l (gnus-data-level (car data))) level))
3328 (and (= (1+ level) l)
3329 (push (gnus-data-number (car data))
3330 children)))
3331 (nreverse children)))
3332
3333(defun gnus-summary-article-parent (&optional number)
6748645f 3334 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3335 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3336 (gnus-data-list t)))
3337 (level (gnus-data-level (car data))))
3338 (if (zerop level)
3339 () ; This is a root.
3340 ;; We search until we find an article with a level less than
3341 ;; this one. That function has to be the parent.
3342 (while (and (setq data (cdr data))
3343 (not (< (gnus-data-level (car data)) level))))
3344 (and data (gnus-data-number (car data))))))
3345
3346(defun gnus-unread-mark-p (mark)
3347 "Say whether MARK is the unread mark."
3348 (= mark gnus-unread-mark))
3349
3350(defun gnus-read-mark-p (mark)
3351 "Say whether MARK is one of the marks that mark as read.
3352This is all marks except unread, ticked, dormant, and expirable."
3353 (not (or (= mark gnus-unread-mark)
3354 (= mark gnus-ticked-mark)
23f87bed 3355 (= mark gnus-spam-mark)
eec82323
LMI
3356 (= mark gnus-dormant-mark)
3357 (= mark gnus-expirable-mark))))
3358
3359(defmacro gnus-article-mark (number)
6748645f
LMI
3360 "Return the MARK of article NUMBER.
3361This macro should only be used when computing the mark the \"first\"
3362time; i.e., when generating the summary lines. After that,
3363`gnus-summary-article-mark' should be used to examine the
3364marks of articles."
eec82323 3365 `(cond
6748645f 3366 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3367 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3368 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3369 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3370 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3371 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3372 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3373 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3374 gnus-ancient-mark))))
3375
3376;; Saving hidden threads.
3377
eec82323
LMI
3378(defmacro gnus-save-hidden-threads (&rest forms)
3379 "Save hidden threads, eval FORMS, and restore the hidden threads."
3380 (let ((config (make-symbol "config")))
3381 `(let ((,config (gnus-hidden-threads-configuration)))
3382 (unwind-protect
3383 (save-excursion
3384 ,@forms)
3385 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3386(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3387(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3388
107ecebb
AS
3389(defun gnus-data-compute-positions ()
3390 "Compute the positions of all articles."
3391 (setq gnus-newsgroup-data-reverse nil)
3392 (let ((data gnus-newsgroup-data))
3393 (save-excursion
3394 (gnus-save-hidden-threads
3395 (gnus-summary-show-all-threads)
3396 (goto-char (point-min))
3397 (while data
3398 (while (get-text-property (point) 'gnus-intangible)
3399 (forward-line 1))
3400 (gnus-data-set-pos (car data) (+ (point) 3))
3401 (setq data (cdr data))
3402 (forward-line 1))))))
3403
16409b0b
GM
3404(defun gnus-hidden-threads-configuration ()
3405 "Return the current hidden threads configuration."
3406 (save-excursion
3407 (let (config)
3408 (goto-char (point-min))
62a83cc8
KY
3409 (while (not (eobp))
3410 (when (eq (get-char-property (point-at-eol) 'invisible) 'gnus-sum)
3411 (push (save-excursion (forward-line 0) (point)) config))
3412 (forward-line 1))
16409b0b
GM
3413 config)))
3414
3415(defun gnus-restore-hidden-threads-configuration (config)
3416 "Restore hidden threads configuration from CONFIG."
3417 (save-excursion
c7a91ce1 3418 (let (point (inhibit-read-only t))
16409b0b 3419 (while (setq point (pop config))
62a83cc8
KY
3420 (goto-char point)
3421 (gnus-summary-hide-thread)))))
16409b0b 3422
eec82323
LMI
3423;; Various summary mode internalish functions.
3424
3425(defun gnus-mouse-pick-article (e)
3426 (interactive "e")
3427 (mouse-set-point e)
3428 (gnus-summary-next-page nil t))
3429
3430(defun gnus-summary-set-display-table ()
16409b0b
GM
3431 "Change the display table.
3432Odd characters have a tendency to mess
3433up nicely formatted displays - we make all possible glyphs
3434display only a single character."
eec82323
LMI
3435
3436 ;; We start from the standard display table, if any.
3437 (let ((table (or (copy-sequence standard-display-table)
3438 (make-display-table)))
3439 (i 32))
3440 ;; Nix out all the control chars...
3441 (while (>= (setq i (1- i)) 0)
2b968687 3442 (gnus-put-display-table i [??] table))
23f87bed 3443 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3444 ;; selective display).
2b968687
MB
3445 (gnus-put-display-table ?\n nil table)
3446 (gnus-put-display-table ?\r nil table)
6748645f 3447 ;; We keep TAB as well.
2b968687 3448 (gnus-put-display-table ?\t nil table)
719120ef 3449 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3450 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3451 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3452 160
3453 256)))
eec82323
LMI
3454 (while (>= (setq i (1- i)) 127)
3455 ;; Only modify if the entry is nil.
2b968687
MB
3456 (unless (gnus-get-display-table i table)
3457 (gnus-put-display-table i [??] table))))
eec82323
LMI
3458 (setq buffer-display-table table)))
3459
23f87bed
MB
3460(defun gnus-summary-set-article-display-arrow (pos)
3461 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3462 (when gnus-summary-display-arrow
3463 (make-local-variable 'overlay-arrow-position)
3464 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3465 (save-excursion
3466 (goto-char pos)
3467 (beginning-of-line)
3468 (unless overlay-arrow-position
3469 (setq overlay-arrow-position (make-marker)))
3470 (setq overlay-arrow-string "=>"
3471 overlay-arrow-position (set-marker overlay-arrow-position
3472 (point)
3473 (current-buffer))))))
3474
eec82323
LMI
3475(defun gnus-summary-setup-buffer (group)
3476 "Initialize summary buffer."
23f87bed
MB
3477 (let ((buffer (gnus-summary-buffer-name group))
3478 (dead-name (concat "*Dead Summary "
3479 (gnus-group-decoded-name group) "*")))
3480 ;; If a dead summary buffer exists, we kill it.
3481 (when (gnus-buffer-live-p dead-name)
3482 (gnus-kill-buffer dead-name))
eec82323
LMI
3483 (if (get-buffer buffer)
3484 (progn
3485 (set-buffer buffer)
3486 (setq gnus-summary-buffer (current-buffer))
3487 (not gnus-newsgroup-prepared))
3488 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3489 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3490 (gnus-summary-mode group)
3491 (when gnus-carpal
3492 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3493 (when (gnus-group-quit-config group)
3494 (set (make-local-variable 'gnus-single-article-buffer) nil))
3495 (make-local-variable 'gnus-article-buffer)
3496 (make-local-variable 'gnus-article-current)
3497 (make-local-variable 'gnus-original-article-buffer)
eec82323 3498 (setq gnus-newsgroup-name group)
23f87bed
MB
3499 ;; Set any local variables in the group parameters.
3500 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3501 t)))
3502
3503(defun gnus-set-global-variables ()
16409b0b
GM
3504 "Set the global equivalents of the buffer-local variables.
3505They are set to the latest values they had. These reflect the summary
3506buffer that was in action when the last article was fetched."
eec82323
LMI
3507 (when (eq major-mode 'gnus-summary-mode)
3508 (setq gnus-summary-buffer (current-buffer))
3509 (let ((name gnus-newsgroup-name)
3510 (marked gnus-newsgroup-marked)
23f87bed 3511 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3512 (unread gnus-newsgroup-unreads)
3513 (headers gnus-current-headers)
3514 (data gnus-newsgroup-data)
3515 (summary gnus-summary-buffer)
3516 (article-buffer gnus-article-buffer)
3517 (original gnus-original-article-buffer)
3518 (gac gnus-article-current)
3519 (reffed gnus-reffed-article-number)
16409b0b 3520 (score-file gnus-current-score-file)
23f87bed
MB
3521 (default-charset gnus-newsgroup-charset)
3522 vlist)
3523 (let ((locals gnus-newsgroup-variables))
3524 (while locals
3525 (if (consp (car locals))
3526 (push (eval (caar locals)) vlist)
3527 (push (eval (car locals)) vlist))
3528 (setq locals (cdr locals)))
3529 (setq vlist (nreverse vlist)))
01c52d31 3530 (with-current-buffer gnus-group-buffer
6748645f
LMI
3531 (setq gnus-newsgroup-name name
3532 gnus-newsgroup-marked marked
23f87bed 3533 gnus-newsgroup-spam-marked spam
6748645f
LMI
3534 gnus-newsgroup-unreads unread
3535 gnus-current-headers headers
3536 gnus-newsgroup-data data
3537 gnus-article-current gac
3538 gnus-summary-buffer summary
3539 gnus-article-buffer article-buffer
3540 gnus-original-article-buffer original
3541 gnus-reffed-article-number reffed
16409b0b
GM
3542 gnus-current-score-file score-file
3543 gnus-newsgroup-charset default-charset)
23f87bed
MB
3544 (let ((locals gnus-newsgroup-variables))
3545 (while locals
3546 (if (consp (car locals))
3547 (set (caar locals) (pop vlist))
3548 (set (car locals) (pop vlist)))
3549 (setq locals (cdr locals))))
eec82323
LMI
3550 ;; The article buffer also has local variables.
3551 (when (gnus-buffer-live-p gnus-article-buffer)
3552 (set-buffer gnus-article-buffer)
3553 (setq gnus-summary-buffer summary))))))
3554
3555(defun gnus-summary-article-unread-p (article)
3556 "Say whether ARTICLE is unread or not."
3557 (memq article gnus-newsgroup-unreads))
3558
3559(defun gnus-summary-first-article-p (&optional article)
3560 "Return whether ARTICLE is the first article in the buffer."
3561 (if (not (setq article (or article (gnus-summary-article-number))))
3562 nil
3563 (eq article (caar gnus-newsgroup-data))))
3564
3565(defun gnus-summary-last-article-p (&optional article)
3566 "Return whether ARTICLE is the last article in the buffer."
3567 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3568 ;; All non-existent numbers are the last article. :-)
3569 t
eec82323
LMI
3570 (not (cdr (gnus-data-find-list article)))))
3571
4921bbdd
CY
3572(defun gnus-make-thread-indent-array (&optional n)
3573 (when (or n
3574 (progn (setq n 200) nil)
3575 (null gnus-thread-indent-array)
3576 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3577 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3578 gnus-thread-indent-array-level gnus-thread-indent-level)
3579 (while (>= n 0)
3580 (aset gnus-thread-indent-array n
6a30c01d 3581 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3582 (setq n (1- n)))))
eec82323
LMI
3583
3584(defun gnus-update-summary-mark-positions ()
3585 "Compute where the summary marks are to go."
3586 (save-excursion
6748645f 3587 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3588 (set-buffer gnus-summary-buffer))
5153a47a
MB
3589 (let ((spec gnus-summary-line-format-spec)
3590 pos)
eec82323
LMI
3591 (save-excursion
3592 (gnus-set-work-buffer)
5153a47a
MB
3593 (let ((gnus-tmp-unread ?Z)
3594 (gnus-replied-mark ?Z)
3595 (gnus-score-below-mark ?Z)
3596 (gnus-score-over-mark ?Z)
3597 (gnus-undownloaded-mark ?Z)
3598 (gnus-summary-line-format-spec spec)
54506618 3599 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3600 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3601 case-fold-search ignores)
3602 ;; Here, all marks are bound to Z.
3603 (gnus-summary-insert-line header
3604 0 nil t gnus-tmp-unread t nil "" nil 1)
3605 (goto-char (point-min))
3606 ;; Memorize the positions of the same characters as dummy marks.
3607 (while (re-search-forward "[A-D]" nil t)
3608 (push (point) ignores))
54506618 3609 (erase-buffer)
5153a47a
MB
3610 ;; We use A-D as dummy marks in order to know column positions
3611 ;; where marks should be inserted.
3612 (setq gnus-tmp-unread ?A
3613 gnus-replied-mark ?B
3614 gnus-score-below-mark ?C
3615 gnus-score-over-mark ?C
3616 gnus-undownloaded-mark ?D)
3617 (gnus-summary-insert-line header
3618 0 nil t gnus-tmp-unread t nil "" nil 1)
3619 ;; Ignore characters which aren't dummy marks.
3620 (dolist (p ignores)
3621 (delete-region (goto-char (1- p)) p)
3622 (insert ?Z))
eec82323 3623 (goto-char (point-min))
7c3bb5a5 3624 (setq pos (list (cons 'unread
5153a47a 3625 (and (search-forward "A" nil t)
7c3bb5a5 3626 (- (point) (point-min) 1)))))
eec82323 3627 (goto-char (point-min))
5153a47a 3628 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3629 (- (point) (point-min) 1)))
eec82323
LMI
3630 pos)
3631 (goto-char (point-min))
5153a47a 3632 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3633 (- (point) (point-min) 1)))
6748645f
LMI
3634 pos)
3635 (goto-char (point-min))
5153a47a 3636 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3637 (- (point) (point-min) 1)))
eec82323
LMI
3638 pos)))
3639 (setq gnus-summary-mark-positions pos))))
3640
3641(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3642 "Insert a dummy root in the summary buffer."
3643 (beginning-of-line)
3644 (gnus-add-text-properties
3645 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3646 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3647
23f87bed
MB
3648(defun gnus-summary-extract-address-component (from)
3649 (or (car (funcall gnus-extract-address-components from))
3650 from))
3651
3652(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3653 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3654 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3655 ; Is it really necessary to do this next part for each summary line?
3656 ; Luckily, doesn't seem to slow things down much.
16409b0b 3657 (mail-parse-ignored-charsets
01c52d31
MB
3658 (with-current-buffer gnus-summary-buffer
3659 gnus-newsgroup-ignored-charsets)))
23f87bed 3660 (or
01c52d31
MB
3661 (and ignored-from-addresses
3662 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3663 (let ((extra-headers (mail-header-extra header))
3664 to
3665 newsgroups)
3666 (cond
3667 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3668 (concat gnus-summary-to-prefix
23f87bed
MB
3669 (inline
3670 (gnus-summary-extract-address-component
343d6628 3671 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3672 ((setq newsgroups
3673 (or
3674 (cdr (assq 'Newsgroups extra-headers))
3675 (and
3676 (memq 'Newsgroups gnus-extra-headers)
3677 (eq (car (gnus-find-method-for-group
3678 gnus-newsgroup-name)) 'nntp)
3679 (gnus-group-real-name gnus-newsgroup-name))))
3680 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3681 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3682
eec82323
LMI
3683(defun gnus-summary-insert-line (gnus-tmp-header
3684 gnus-tmp-level gnus-tmp-current
23f87bed 3685 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3686 gnus-tmp-expirable gnus-tmp-subject-or-nil
3687 &optional gnus-tmp-dummy gnus-tmp-score
3688 gnus-tmp-process)
4921bbdd
CY
3689 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3690 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3691 gnus-tmp-level)))
eec82323
LMI
3692 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3693 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3694 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3695 (gnus-tmp-score-char
3696 (if (or (null gnus-summary-default-score)
3697 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3698 gnus-summary-zcore-fuzz))
23f87bed 3699 ? ;Whitespace
eec82323
LMI
3700 (if (< gnus-tmp-score gnus-summary-default-score)
3701 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3702 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3703 (gnus-tmp-replied
3704 (cond (gnus-tmp-process gnus-process-mark)
3705 ((memq gnus-tmp-current gnus-newsgroup-cached)
3706 gnus-cached-mark)
3707 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3708 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3709 gnus-forwarded-mark)
eec82323
LMI
3710 ((memq gnus-tmp-current gnus-newsgroup-saved)
3711 gnus-saved-mark)
23f87bed
MB
3712 ((memq gnus-tmp-number gnus-newsgroup-recent)
3713 gnus-recent-mark)
3714 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3715 gnus-unseen-mark)
3716 (t gnus-no-mark)))
3717 (gnus-tmp-downloaded
3718 (cond (undownloaded
3719 gnus-undownloaded-mark)
3720 (gnus-newsgroup-agentized
3721 gnus-downloaded-mark)
3722 (t
3723 gnus-no-mark)))
eec82323
LMI
3724 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3725 (gnus-tmp-name
3726 (cond
3727 ((string-match "<[^>]+> *$" gnus-tmp-from)
3728 (let ((beg (match-beginning 0)))
23f87bed
MB
3729 (or (and (string-match "^\".+\"" gnus-tmp-from)
3730 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3731 (substring gnus-tmp-from 0 beg))))
3732 ((string-match "(.+)" gnus-tmp-from)
3733 (substring gnus-tmp-from
3734 (1+ (match-beginning 0)) (1- (match-end 0))))
3735 (t gnus-tmp-from)))
3736 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3737 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3738 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3739 (inhibit-read-only t))
eec82323
LMI
3740 (when (string= gnus-tmp-name "")
3741 (setq gnus-tmp-name gnus-tmp-from))
3742 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3743 (setq gnus-tmp-lines -1))
3744 (if (= gnus-tmp-lines -1)
3745 (setq gnus-tmp-lines "?")
3746 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3747 (condition-case ()
3748 (gnus-put-text-property
3749 (point)
3750 (progn (eval gnus-summary-line-format-spec) (point))
3751 'gnus-number gnus-tmp-number)
3752 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3753 (when (gnus-visual-p 'summary-highlight 'highlight)
3754 (forward-line -1)
a9ec34f4 3755 (gnus-summary-highlight-line)
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)
a9ec34f4 3788 (gnus-summary-highlight-line)
6748645f 3789 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3790
3791(defvar gnus-tmp-new-adopts nil)
3792
3793(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3794 "Return the number of articles in THREAD.
3795This may be 0 in some cases -- if none of the articles in
3796the thread are to be displayed."
3797 (let* ((number
23f87bed 3798 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3799 (cond
3800 ((not (listp thread))
3801 1)
3802 ((and (consp thread) (cdr thread))
3803 (apply
3804 '+ 1 (mapcar
3805 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3806 ((null thread)
3807 1)
3808 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3809 1)
3810 (t 0))))
3811 (when (and level (zerop level) gnus-tmp-new-adopts)
3812 (incf number
3813 (apply '+ (mapcar
3814 'gnus-summary-number-of-articles-in-thread
3815 gnus-tmp-new-adopts))))
3816 (if char
3817 (if (> number 1) gnus-not-empty-thread-mark
3818 gnus-empty-thread-mark)
3819 number)))
3820
23f87bed
MB
3821(defsubst gnus-summary-line-message-size (head)
3822 "Return pretty-printed version of message size.
3823This function is intended to be used in
3824`gnus-summary-line-format-alist'."
3825 (let ((c (or (mail-header-chars head) -1)))
3826 (cond ((< c 0) "n/a") ; chars not available
3827 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3828 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3829 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3830 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3831
3832
eec82323
LMI
3833(defun gnus-summary-set-local-parameters (group)
3834 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3835 (let ((vars '(quit-config))) ; Ignore quit-config.
3836 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3837 (and (consp elem) ; Has to be a cons.
3838 (consp (cdr elem)) ; The cdr has to be a list.
3839 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3840 (not (memq (car elem) vars))
e3e955fe 3841 (ignore-errors
23f87bed 3842 (push (car elem) vars)
e3e955fe
MB
3843 ;; Variables like `gnus-show-threads' that are globally
3844 ;; bound, if used as group parameters, need to get to be
3845 ;; buffer-local, whereas just parameters like `gcc-self',
3846 ;; `timestamp', etc. should not be bound as variables.
3847 (if (boundp (car elem))
3848 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3849 (eval (nth 1 elem))))))))
eec82323
LMI
3850
3851(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3852 kill-buffer no-display backward
3853 select-articles)
eec82323
LMI
3854 "Start reading news in newsgroup GROUP.
3855If SHOW-ALL is non-nil, already read articles are also listed.
3856If NO-ARTICLE is non-nil, no article is selected initially.
3857If NO-DISPLAY, don't generate a summary buffer."
3858 (let (result)
3859 (while (and group
3860 (null (setq result
3861 (let ((gnus-auto-select-next nil))
6748645f
LMI
3862 (or (gnus-summary-read-group-1
3863 group show-all no-article
3864 kill-buffer no-display
3865 select-articles)
3866 (setq show-all nil
16409b0b 3867 select-articles nil)))))
eec82323
LMI
3868 (eq gnus-auto-select-next 'quietly))
3869 (set-buffer gnus-group-buffer)
6748645f
LMI
3870 ;; The entry function called above goes to the next
3871 ;; group automatically, so we go two groups back
3872 ;; if we are searching for the previous group.
3873 (when backward
3874 (gnus-group-prev-unread-group 2))
eec82323
LMI
3875 (if (not (equal group (gnus-group-group-name)))
3876 (setq group (gnus-group-group-name))
3877 (setq group nil)))
3878 result))
3879
3880(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3881 kill-buffer no-display
3882 &optional select-articles)
eec82323 3883 ;; Killed foreign groups can't be entered.
23f87bed
MB
3884 ;; (when (and (not (gnus-group-native-p group))
3885 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3886 ;; (error "Dead non-native groups can't be entered"))
3887 (gnus-message 5 "Retrieving newsgroup: %s..."
3888 (gnus-group-decoded-name group))
eec82323
LMI
3889 (let* ((new-group (gnus-summary-setup-buffer group))
3890 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3891 (did-select (and new-group (gnus-select-newsgroup
3892 group show-all select-articles))))
eec82323
LMI
3893 (cond
3894 ;; This summary buffer exists already, so we just select it.
3895 ((not new-group)
3896 (gnus-set-global-variables)
3897 (when kill-buffer
3898 (gnus-kill-or-deaden-summary kill-buffer))
3899 (gnus-configure-windows 'summary 'force)
3900 (gnus-set-mode-line 'summary)
3901 (gnus-summary-position-point)
3902 (message "")
3903 t)
3904 ;; We couldn't select this group.
3905 ((null did-select)
3906 (when (and (eq major-mode 'gnus-summary-mode)
3907 (not (equal (current-buffer) kill-buffer)))
3908 (kill-buffer (current-buffer))
3909 (if (not quit-config)
3910 (progn
6748645f
LMI
3911 ;; Update the info -- marks might need to be removed,
3912 ;; for instance.
3913 (gnus-summary-update-info)
eec82323
LMI
3914 (set-buffer gnus-group-buffer)
3915 (gnus-group-jump-to-group group)
3916 (gnus-group-next-unread-group 1))
3917 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3918 (let ((grpinfo (gnus-get-info group)))
3919 (if (null (gnus-info-read grpinfo))
3920 (gnus-message 3 "Group %s contains no messages"
3921 (gnus-group-decoded-name group))
3922 (gnus-message 3 "Can't select group")))
eec82323
LMI
3923 nil)
3924 ;; The user did a `C-g' while prompting for number of articles,
3925 ;; so we exit this group.
3926 ((eq did-select 'quit)
3927 (and (eq major-mode 'gnus-summary-mode)
3928 (not (equal (current-buffer) kill-buffer))
3929 (kill-buffer (current-buffer)))
3930 (when kill-buffer
3931 (gnus-kill-or-deaden-summary kill-buffer))
3932 (if (not quit-config)
3933 (progn
3934 (set-buffer gnus-group-buffer)
3935 (gnus-group-jump-to-group group)
eec82323
LMI
3936 (gnus-configure-windows 'group 'force))
3937 (gnus-handle-ephemeral-exit quit-config))
3938 ;; Finally signal the quit.
3939 (signal 'quit nil))
3940 ;; The group was successfully selected.
3941 (t
3942 (gnus-set-global-variables)
3943 ;; Save the active value in effect when the group was entered.
3944 (setq gnus-newsgroup-active
3945 (gnus-copy-sequence
3946 (gnus-active gnus-newsgroup-name)))
3947 ;; You can change the summary buffer in some way with this hook.
6748645f 3948 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3949 (when (memq 'summary (gnus-update-format-specifications
3950 nil 'summary 'summary-mode 'summary-dummy))
3951 ;; The format specification for the summary line was updated,
3952 ;; so we need to update the mark positions as well.
3953 (gnus-update-summary-mark-positions))
eec82323
LMI
3954 ;; Do score processing.
3955 (when gnus-use-scoring
3956 (gnus-possibly-score-headers))
3957 ;; Check whether to fill in the gaps in the threads.
3958 (when gnus-build-sparse-threads
3959 (gnus-build-sparse-threads))
3960 ;; Find the initial limit.
26c9afc3
MB
3961 (if show-all
3962 (let ((gnus-newsgroup-dormant nil))
eec82323 3963 (gnus-summary-initial-limit show-all))
26c9afc3 3964 (gnus-summary-initial-limit show-all))
eec82323
LMI
3965 ;; Generate the summary buffer.
3966 (unless no-display
3967 (gnus-summary-prepare))
3968 (when gnus-use-trees
3969 (gnus-tree-open group)
3970 (setq gnus-summary-highlight-line-function
3971 'gnus-tree-highlight-article))
3972 ;; If the summary buffer is empty, but there are some low-scored
3973 ;; articles or some excluded dormants, we include these in the
3974 ;; buffer.
3975 (when (and (zerop (buffer-size))
3976 (not no-display))
3977 (cond (gnus-newsgroup-dormant
3978 (gnus-summary-limit-include-dormant))
3979 ((and gnus-newsgroup-scored show-all)
3980 (gnus-summary-limit-include-expunged t))))
3981 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3982 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3983 (if (and (zerop (buffer-size))
3984 (not no-display))
3985 (progn
3986 ;; This newsgroup is empty.
3987 (gnus-summary-catchup-and-exit nil t)
3988 (gnus-message 6 "No unread news")
3989 (when kill-buffer
3990 (gnus-kill-or-deaden-summary kill-buffer))
3991 ;; Return nil from this function.
3992 nil)
3993 ;; Hide conversation thread subtrees. We cannot do this in
3994 ;; gnus-summary-prepare-hook since kill processing may not
3995 ;; work with hidden articles.
23f87bed 3996 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3997 (when kill-buffer
3998 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3999 (gnus-summary-auto-select-subject)
eec82323
LMI
4000 ;; Show first unread article if requested.
4001 (if (and (not no-article)
4002 (not no-display)
4003 gnus-newsgroup-unreads
4004 gnus-auto-select-first)
16409b0b
GM
4005 (progn
4006 (gnus-configure-windows 'summary)
23f87bed
MB
4007 (let ((art (gnus-summary-article-number)))
4008 (unless (and (not gnus-plugged)
4009 (or (memq art gnus-newsgroup-undownloaded)
4010 (memq art gnus-newsgroup-downloadable)))
4011 (gnus-summary-goto-article art))))
4012 ;; Don't select any articles.
eec82323 4013 (gnus-summary-position-point)
6748645f
LMI
4014 (gnus-configure-windows 'summary 'force)
4015 (gnus-set-mode-line 'summary))
23f87bed
MB
4016 (when (and gnus-auto-center-group
4017 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4018 ;; Gotta use windows, because recenter does weird stuff if
4019 ;; the current buffer ain't the displayed window.
4020 (let ((owin (selected-window)))
4021 (select-window (get-buffer-window gnus-group-buffer t))
4022 (when (gnus-group-goto-group group)
4023 (recenter))
4024 (select-window owin)))
4025 ;; Mark this buffer as "prepared".
4026 (setq gnus-newsgroup-prepared t)
6748645f 4027 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4028 (unless (gnus-ephemeral-group-p group)
4029 (gnus-group-update-group group))
eec82323
LMI
4030 t)))))
4031
23f87bed
MB
4032(defun gnus-summary-auto-select-subject ()
4033 "Select the subject line on initial group entry."
4034 (goto-char (point-min))
4035 (cond
4036 ((eq gnus-auto-select-subject 'best)
4037 (gnus-summary-best-unread-subject))
4038 ((eq gnus-auto-select-subject 'unread)
4039 (gnus-summary-first-unread-subject))
4040 ((eq gnus-auto-select-subject 'unseen)
4041 (gnus-summary-first-unseen-subject))
4042 ((eq gnus-auto-select-subject 'unseen-or-unread)
4043 (gnus-summary-first-unseen-or-unread-subject))
4044 ((eq gnus-auto-select-subject 'first)
4045 ;; Do nothing.
4046 )
4047 ((functionp gnus-auto-select-subject)
4048 (funcall gnus-auto-select-subject))))
4049
eec82323
LMI
4050(defun gnus-summary-prepare ()
4051 "Generate the summary buffer."
4052 (interactive)
c7a91ce1 4053 (let ((inhibit-read-only t))
eec82323
LMI
4054 (erase-buffer)
4055 (setq gnus-newsgroup-data nil
4056 gnus-newsgroup-data-reverse nil)
6748645f 4057 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4058 ;; Generate the buffer, either with threads or without.
4059 (when gnus-newsgroup-headers
4060 (gnus-summary-prepare-threads
4061 (if gnus-show-threads
4062 (gnus-sort-gathered-threads
4063 (funcall gnus-summary-thread-gathering-function
4064 (gnus-sort-threads
4065 (gnus-cut-threads (gnus-make-threads)))))
4066 ;; Unthreaded display.
4067 (gnus-sort-articles gnus-newsgroup-headers))))
4068 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4069 ;; Call hooks for modifying summary buffer.
4070 (goto-char (point-min))
6748645f 4071 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4072
4073(defsubst gnus-general-simplify-subject (subject)
23f87bed 4074 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4075 (setq subject
4076 (cond
4077 ;; Truncate the subject.
6748645f
LMI
4078 (gnus-simplify-subject-functions
4079 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4080 ((numberp gnus-summary-gather-subject-limit)
4081 (setq subject (gnus-simplify-subject-re subject))
4082 (if (> (length subject) gnus-summary-gather-subject-limit)
4083 (substring subject 0 gnus-summary-gather-subject-limit)
4084 subject))
4085 ;; Fuzzily simplify it.
4086 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4087 (gnus-simplify-subject-fuzzy subject))
4088 ;; Just remove the leading "Re:".
4089 (t
4090 (gnus-simplify-subject-re subject))))
4091
4092 (if (and gnus-summary-gather-exclude-subject
4093 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4094 nil ; This article shouldn't be gathered
eec82323
LMI
4095 subject))
4096
4097(defun gnus-summary-simplify-subject-query ()
4098 "Query where the respool algorithm would put this article."
4099 (interactive)
eec82323 4100 (gnus-summary-select-article)
274f1353 4101 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4102
4103(defun gnus-gather-threads-by-subject (threads)
4104 "Gather threads by looking at Subject headers."
4105 (if (not gnus-summary-make-false-root)
4106 threads
4107 (let ((hashtb (gnus-make-hashtable 1024))
4108 (prev threads)
4109 (result threads)
4110 subject hthread whole-subject)
4111 (while threads
4112 (setq subject (gnus-general-simplify-subject
4113 (setq whole-subject (mail-header-subject
4114 (caar threads)))))
4115 (when subject
4116 (if (setq hthread (gnus-gethash subject hashtb))
4117 (progn
4118 ;; We enter a dummy root into the thread, if we
4119 ;; haven't done that already.
4120 (unless (stringp (caar hthread))
4121 (setcar hthread (list whole-subject (car hthread))))
4122 ;; We add this new gathered thread to this gathered
4123 ;; thread.
4124 (setcdr (car hthread)
4125 (nconc (cdar hthread) (list (car threads))))
4126 ;; Remove it from the list of threads.
4127 (setcdr prev (cdr threads))
4128 (setq threads prev))
4129 ;; Enter this thread into the hash table.
23f87bed
MB
4130 (gnus-sethash subject
4131 (if gnus-summary-make-false-root-always
4132 (progn
4133 ;; If you want a dummy root above all
4134 ;; threads...
4135 (setcar threads (list whole-subject
4136 (car threads)))
4137 threads)
4138 threads)
4139 hashtb)))
eec82323
LMI
4140 (setq prev threads)
4141 (setq threads (cdr threads)))
4142 result)))
4143
4144(defun gnus-gather-threads-by-references (threads)
4145 "Gather threads by looking at References headers."
4146 (let ((idhashtb (gnus-make-hashtable 1024))
4147 (thhashtb (gnus-make-hashtable 1024))
4148 (prev threads)
4149 (result threads)
4150 ids references id gthread gid entered ref)
4151 (while threads
4152 (when (setq references (mail-header-references (caar threads)))
4153 (setq id (mail-header-id (caar threads))
23f87bed 4154 ids (inline (gnus-split-references references))
eec82323
LMI
4155 entered nil)
4156 (while (setq ref (pop ids))
4157 (setq ids (delete ref ids))
4158 (if (not (setq gid (gnus-gethash ref idhashtb)))
4159 (progn
4160 (gnus-sethash ref id idhashtb)
4161 (gnus-sethash id threads thhashtb))
4162 (setq gthread (gnus-gethash gid thhashtb))
4163 (unless entered
4164 ;; We enter a dummy root into the thread, if we
4165 ;; haven't done that already.
4166 (unless (stringp (caar gthread))
4167 (setcar gthread (list (mail-header-subject (caar gthread))
4168 (car gthread))))
4169 ;; We add this new gathered thread to this gathered
4170 ;; thread.
4171 (setcdr (car gthread)
4172 (nconc (cdar gthread) (list (car threads)))))
4173 ;; Add it into the thread hash table.
4174 (gnus-sethash id gthread thhashtb)
4175 (setq entered t)
4176 ;; Remove it from the list of threads.
4177 (setcdr prev (cdr threads))
4178 (setq threads prev))))
4179 (setq prev threads)
4180 (setq threads (cdr threads)))
4181 result))
4182
4183(defun gnus-sort-gathered-threads (threads)
16409b0b 4184 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4185 (let ((result threads))
4186 (while threads
4187 (when (stringp (caar threads))
4188 (setcdr (car threads)
16409b0b 4189 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4190 (setq threads (cdr threads)))
4191 result))
4192
4193(defun gnus-thread-loop-p (root thread)
4194 "Say whether ROOT is in THREAD."
4195 (let ((stack (list thread))
4196 (infloop 0)
4197 th)
4198 (while (setq thread (pop stack))
4199 (setq th (cdr thread))
4200 (while (and th
4201 (not (eq (caar th) root)))
4202 (pop th))
4203 (if th
4204 ;; We have found a loop.
4205 (let (ref-dep)
4206 (setcdr thread (delq (car th) (cdr thread)))
4207 (if (boundp (setq ref-dep (intern "none"
4208 gnus-newsgroup-dependencies)))
4209 (setcdr (symbol-value ref-dep)
4210 (nconc (cdr (symbol-value ref-dep))
4211 (list (car th))))
4212 (set ref-dep (list nil (car th))))
4213 (setq infloop 1
4214 stack nil))
4215 ;; Push all the subthreads onto the stack.
4216 (push (cdr thread) stack)))
4217 infloop))
4218
4219(defun gnus-make-threads ()
01ccbb85 4220 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4221 (let (threads)
4222 (while (catch 'infloop
4223 (mapatoms
4224 (lambda (refs)
4225 ;; Deal with self-referencing References loops.
4226 (when (and (car (symbol-value refs))
4227 (not (zerop
4228 (apply
4229 '+
4230 (mapcar
4231 (lambda (thread)
4232 (gnus-thread-loop-p
4233 (car (symbol-value refs)) thread))
4234 (cdr (symbol-value refs)))))))
4235 (setq threads nil)
4236 (throw 'infloop t))
4237 (unless (car (symbol-value refs))
23f87bed
MB
4238 ;; These threads do not refer back to any other
4239 ;; articles, so they're roots.
eec82323
LMI
4240 (setq threads (append (cdr (symbol-value refs)) threads))))
4241 gnus-newsgroup-dependencies)))
4242 threads))
4243
6748645f 4244;; Build the thread tree.
16409b0b 4245(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4246 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4247
4248If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4249if it was already present.
4250
4251If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4252will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4253Message-IDs will be renamed to a unique Message-ID before being
4254entered.
6748645f
LMI
4255
4256Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4257 (let* ((id (mail-header-id header))
4258 (id-dep (and id (intern id dependencies)))
23f87bed 4259 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4260 ;; Enter this `header' in the `dependencies' table.
4261 (cond
4262 ((not id-dep)
4263 (setq header nil))
4264 ;; The first two cases do the normal part: enter a new `header'
4265 ;; in the `dependencies' table.
4266 ((not (boundp id-dep))
4267 (set id-dep (list header)))
4268 ((null (car (symbol-value id-dep)))
4269 (setcar (symbol-value id-dep) header))
4270
4271 ;; From here the `header' was already present in the
4272 ;; `dependencies' table.
4273 (force-new
4274 ;; Overrides an existing entry;
4275 ;; just set the header part of the entry.
23f87bed
MB
4276 (setcar (symbol-value id-dep) header)
4277 (setq replaced t))
6748645f
LMI
4278
4279 ;; Renames the existing `header' to a unique Message-ID.
4280 ((not gnus-summary-ignore-duplicates)
4281 ;; An article with this Message-ID has already been seen.
4282 ;; We rename the Message-ID.
4283 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4284 (list header))
4285 (mail-header-set-id header id))
4286
4287 ;; The last case ignores an existing entry, except it adds any
4288 ;; additional Xrefs (in case the two articles came from different
4289 ;; servers.
4290 ;; Also sets `header' to `nil' meaning that the `dependencies'
4291 ;; table was *not* modified.
4292 (t
4293 (mail-header-set-xref
4294 (car (symbol-value id-dep))
4295 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4296 "")
4297 (or (mail-header-xref header) "")))
4298 (setq header nil)))
4299
23f87bed
MB
4300 (when (and header (not replaced))
4301 ;; First check that we are not creating a References loop.
4302 (setq parent-id (gnus-parent-id (mail-header-references header)))
4303 (setq ref parent-id)
6748645f
LMI
4304 (while (and ref
4305 (setq ref-dep (intern-soft ref dependencies))
4306 (boundp ref-dep)
4307 (setq ref-header (car (symbol-value ref-dep))))
4308 (if (string= id ref)
4309 ;; Yuk! This is a reference loop. Make the article be a
4310 ;; root article.
4311 (progn
4312 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4313 (setq ref nil)
4314 (setq parent-id nil))
6748645f 4315 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4316 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4317 (if (boundp ref-dep)
4318 (setcdr (symbol-value ref-dep)
4319 (nconc (cdr (symbol-value ref-dep))
4320 (list (symbol-value id-dep))))
4321 (set ref-dep (list nil (symbol-value id-dep)))))
4322 header))
4323
23f87bed
MB
4324(defun gnus-extract-message-id-from-in-reply-to (string)
4325 (if (string-match "<[^>]+>" string)
4326 (substring string (match-beginning 0) (match-end 0))
4327 nil))
4328
eec82323
LMI
4329(defun gnus-build-sparse-threads ()
4330 (let ((headers gnus-newsgroup-headers)
16409b0b 4331 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4332 (gnus-summary-ignore-duplicates t)
eec82323 4333 header references generation relations
6748645f 4334 subject child end new-child date)
eec82323
LMI
4335 ;; First we create an alist of generations/relations, where
4336 ;; generations is how much we trust the relation, and the relation
4337 ;; is parent/child.
4338 (gnus-message 7 "Making sparse threads...")
4339 (save-excursion
4340 (nnheader-set-temp-buffer " *gnus sparse threads*")
4341 (while (setq header (pop headers))
4342 (when (and (setq references (mail-header-references header))
4343 (not (string= references "")))
4344 (insert references)
4345 (setq child (mail-header-id header)
6748645f
LMI
4346 subject (mail-header-subject header)
4347 date (mail-header-date header)
4348 generation 0)
eec82323
LMI
4349 (while (search-backward ">" nil t)
4350 (setq end (1+ (point)))
4351 (when (search-backward "<" nil t)
6748645f 4352 (setq new-child (buffer-substring (point) end))
eec82323 4353 (push (list (incf generation)
6748645f
LMI
4354 child (setq child new-child)
4355 subject date)
eec82323 4356 relations)))
6748645f
LMI
4357 (when child
4358 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4359 (erase-buffer)))
4360 (kill-buffer (current-buffer)))
4361 ;; Sort over trustworthiness.
01c52d31
MB
4362 (dolist (relation (sort relations 'car-less-than-car))
4363 (when (gnus-dependencies-add-header
4364 (make-full-mail-header
4365 gnus-reffed-article-number
4366 (nth 3 relation) "" (or (nth 4 relation) "")
4367 (nth 1 relation)
4368 (or (nth 2 relation) "") 0 0 "")
4369 gnus-newsgroup-dependencies nil)
4370 (push gnus-reffed-article-number gnus-newsgroup-limit)
4371 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4372 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4373 gnus-newsgroup-reads)
4374 (decf gnus-reffed-article-number)))
eec82323
LMI
4375 (gnus-message 7 "Making sparse threads...done")))
4376
4377(defun gnus-build-old-threads ()
4378 ;; Look at all the articles that refer back to old articles, and
4379 ;; fetch the headers for the articles that aren't there. This will
4380 ;; build complete threads - if the roots haven't been expired by the
4381 ;; server, that is.
16409b0b
GM
4382 (let ((mail-parse-charset gnus-newsgroup-charset)
4383 id heads)
eec82323
LMI
4384 (mapatoms
4385 (lambda (refs)
4386 (when (not (car (symbol-value refs)))
4387 (setq heads (cdr (symbol-value refs)))
4388 (while heads
4389 (if (memq (mail-header-number (caar heads))
4390 gnus-newsgroup-dormant)
4391 (setq heads (cdr heads))
4392 (setq id (symbol-name refs))
4393 (while (and (setq id (gnus-build-get-header id))
6748645f 4394 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4395 (setq heads nil)))))
4396 gnus-newsgroup-dependencies)))
4397
23f87bed
MB
4398(defsubst gnus-remove-odd-characters (string)
4399 "Translate STRING into something that doesn't contain weird characters."
4400 (mm-subst-char-in-string
4401 ?\r ?\-
01c52d31 4402 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4403
6748645f
LMI
4404;; This function has to be called with point after the article number
4405;; on the beginning of the line.
4406(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4407 (let ((eol (point-at-eol))
6748645f 4408 (buffer (current-buffer))
23f87bed 4409 header references in-reply-to)
6748645f
LMI
4410
4411 ;; overview: [num subject from date id refs chars lines misc]
4412 (unwind-protect
23f87bed 4413 (let (x)
6748645f
LMI
4414 (narrow-to-region (point) eol)
4415 (unless (eobp)
4416 (forward-char))
4417
4418 (setq header
4419 (make-full-mail-header
4420 number ; number
23f87bed
MB
4421 (condition-case () ; subject
4422 (gnus-remove-odd-characters
4423 (funcall gnus-decode-encoded-word-function
4424 (setq x (nnheader-nov-field))))
4425 (error x))
4426 (condition-case () ; from
4427 (gnus-remove-odd-characters
343d6628 4428 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4429 (setq x (nnheader-nov-field))))
4430 (error x))
16409b0b 4431 (nnheader-nov-field) ; date
01c52d31 4432 (nnheader-nov-read-message-id number) ; id
23f87bed 4433 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4434 (nnheader-nov-read-integer) ; chars
4435 (nnheader-nov-read-integer) ; lines
4436 (unless (eobp)
8b93df01
DL
4437 (if (looking-at "Xref: ")
4438 (goto-char (match-end 0)))
4439 (nnheader-nov-field)) ; Xref
16409b0b 4440 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4441
4442 (widen))
4443
23f87bed
MB
4444 (when (and (string= references "")
4445 (setq in-reply-to (mail-header-extra header))
4446 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4447 (mail-header-set-references
4448 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4449
6748645f
LMI
4450 (when gnus-alter-header-function
4451 (funcall gnus-alter-header-function header))
4452 (gnus-dependencies-add-header header dependencies force-new)))
4453
eec82323 4454(defun gnus-build-get-header (id)
16409b0b
GM
4455 "Look through the buffer of NOV lines and find the header to ID.
4456Enter this line into the dependencies hash table, and return
4457the id of the parent article (if any)."
eec82323
LMI
4458 (let ((deps gnus-newsgroup-dependencies)
4459 found header)
4460 (prog1
c7a91ce1 4461 (with-current-buffer nntp-server-buffer
eec82323
LMI
4462 (let ((case-fold-search nil))
4463 (goto-char (point-min))
4464 (while (and (not found)
4465 (search-forward id nil t))
4466 (beginning-of-line)
4467 (setq found (looking-at
4468 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4469 (regexp-quote id))))
4470 (or found (beginning-of-line 2)))
4471 (when found
4472 (beginning-of-line)
4473 (and
4474 (setq header (gnus-nov-parse-line
4475 (read (current-buffer)) deps))
4476 (gnus-parent-id (mail-header-references header))))))
4477 (when header
4478 (let ((number (mail-header-number header)))
4479 (push number gnus-newsgroup-limit)
4480 (push header gnus-newsgroup-headers)
4481 (if (memq number gnus-newsgroup-unselected)
4482 (progn
23f87bed
MB
4483 (setq gnus-newsgroup-unreads
4484 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4485 number))
eec82323
LMI
4486 (setq gnus-newsgroup-unselected
4487 (delq number gnus-newsgroup-unselected)))
4488 (push number gnus-newsgroup-ancient)))))))
4489
6748645f
LMI
4490(defun gnus-build-all-threads ()
4491 "Read all the headers."
4492 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4493 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4494 (dependencies gnus-newsgroup-dependencies)
4495 header article)
c7a91ce1 4496 (with-current-buffer nntp-server-buffer
6748645f
LMI
4497 (let ((case-fold-search nil))
4498 (goto-char (point-min))
4499 (while (not (eobp))
4500 (ignore-errors
4501 (setq article (read (current-buffer))
16409b0b 4502 header (gnus-nov-parse-line article dependencies)))
6748645f 4503 (when header
01c52d31 4504 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4505 (push header gnus-newsgroup-headers)
4506 (if (memq (setq article (mail-header-number header))
4507 gnus-newsgroup-unselected)
4508 (progn
23f87bed
MB
4509 (setq gnus-newsgroup-unreads
4510 (gnus-add-to-sorted-list
4511 gnus-newsgroup-unreads article))
6748645f
LMI
4512 (setq gnus-newsgroup-unselected
4513 (delq article gnus-newsgroup-unselected)))
4514 (push article gnus-newsgroup-ancient)))
4515 (forward-line 1)))))))
4516
eec82323 4517(defun gnus-summary-update-article-line (article header)
23f87bed 4518 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4519 (let* ((id (mail-header-id header))
4520 (thread (gnus-id-to-thread id)))
4521 (unless thread
4522 (error "Article in no thread"))
4523 ;; Update the thread.
4524 (setcar thread header)
4525 (gnus-summary-goto-subject article)
4526 (let* ((datal (gnus-data-find-list article))
4527 (data (car datal))
c7a91ce1 4528 (inhibit-read-only t)
eec82323
LMI
4529 (level (gnus-summary-thread-level)))
4530 (gnus-delete-line)
23f87bed
MB
4531 (let ((inserted (- (point)
4532 (progn
4533 (gnus-summary-insert-line
4534 header level nil
4535 (memq article gnus-newsgroup-undownloaded)
4536 (gnus-article-mark article)
4537 (memq article gnus-newsgroup-replied)
4538 (memq article gnus-newsgroup-expirable)
4539 ;; Only insert the Subject string when it's different
4540 ;; from the previous Subject string.
4541 (if (and
4542 gnus-show-threads
4543 (gnus-subject-equal
4544 (condition-case ()
4545 (mail-header-subject
4546 (gnus-data-header
4547 (cadr
4548 (gnus-data-find-list
4549 article
4550 (gnus-data-list t)))))
4551 ;; Error on the side of excessive subjects.
4552 (error ""))
4553 (mail-header-subject header)))
4554 ""
4555 (mail-header-subject header))
4556 nil (cdr (assq article gnus-newsgroup-scored))
4557 (memq article gnus-newsgroup-processable))
4558 (point)))))
4559 (when (cdr datal)
4560 (gnus-data-update-list
4561 (cdr datal)
4562 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4563
4564(defun gnus-summary-update-article (article &optional iheader)
4565 "Update ARTICLE in the summary buffer."
4566 (set-buffer gnus-summary-buffer)
6748645f 4567 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4568 (id (mail-header-id header))
4569 (data (gnus-data-find article))
4570 (thread (gnus-id-to-thread id))
4571 (references (mail-header-references header))
4572 (parent
4573 (gnus-id-to-thread
4574 (or (gnus-parent-id
4575 (when (and references
4576 (not (equal "" references)))
4577 references))
4578 "none")))
c7a91ce1 4579 (inhibit-read-only t)
6748645f 4580 (old (car thread)))
eec82323 4581 (when thread
eec82323 4582 (unless iheader
6748645f
LMI
4583 (setcar thread nil)
4584 (when parent
4585 (delq thread parent)))
4586 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4587 ;; Set the (possibly) new article number in the data structure.
4588 (gnus-data-set-number data (gnus-id-to-article id))
4589 (setcar thread old)
4590 nil))))
4591
6748645f
LMI
4592(defun gnus-rebuild-thread (id &optional line)
4593 "Rebuild the thread containing ID.
4594If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4595 (let ((inhibit-read-only t)
eec82323
LMI
4596 old-pos current thread data)
4597 (if (not gnus-show-threads)
4598 (setq thread (list (car (gnus-id-to-thread id))))
4599 ;; Get the thread this article is part of.
4600 (setq thread (gnus-remove-thread id)))
01c52d31 4601 (setq old-pos (point-at-bol))
eec82323 4602 (setq current (save-excursion
94384150 4603 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4604 (gnus-summary-article-number))))
4605 ;; If this is a gathered thread, we have to go some re-gathering.
4606 (when (stringp (car thread))
4607 (let ((subject (car thread))
4608 roots thr)
4609 (setq thread (cdr thread))
4610 (while thread
4611 (unless (memq (setq thr (gnus-id-to-thread
4612 (gnus-root-id
4613 (mail-header-id (caar thread)))))
4614 roots)
4615 (push thr roots))
4616 (setq thread (cdr thread)))
4617 ;; We now have all (unique) roots.
4618 (if (= (length roots) 1)
4619 ;; All the loose roots are now one solid root.
4620 (setq thread (car roots))
4621 (setq thread (cons subject (gnus-sort-threads roots))))))
4622 (let (threads)
4623 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4624 (when line
4625 (goto-char (point-min))
4626 (forward-line (1- line)))
eec82323
LMI
4627 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4628 (if gnus-show-threads
4629 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4630 (gnus-summary-prepare-unthreaded thread))
4631 (setq data (nreverse gnus-newsgroup-data))
4632 (setq threads gnus-newsgroup-threads))
4633 ;; We splice the new data into the data structure.
6748645f
LMI
4634 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4635 ;;!!! then we want to insert at the beginning of the buffer.
4636 ;;!!! That happens to be true with Gnus now, but that may
4637 ;;!!! change in the future. Perhaps.
4638 (gnus-data-enter-list
4639 (if line nil current) data (- (point) old-pos))
4640 (setq gnus-newsgroup-threads
4641 (nconc threads gnus-newsgroup-threads))
4642 (gnus-data-compute-positions))))
eec82323
LMI
4643
4644(defun gnus-number-to-header (number)
4645 "Return the header for article NUMBER."
4646 (let ((headers gnus-newsgroup-headers))
4647 (while (and headers
4648 (not (= number (mail-header-number (car headers)))))
4649 (pop headers))
4650 (when headers
4651 (car headers))))
4652
6748645f 4653(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4654 "Return the headers of the GENERATIONeth parent of HEADERS."
4655 (unless generation
4656 (setq generation 1))
a8151ef7 4657 (let ((parent t)
6748645f 4658 (headers in-headers)
a8151ef7 4659 references)
6748645f
LMI
4660 (while (and parent
4661 (not (zerop generation))
4662 (setq references (mail-header-references headers)))
4663 (setq headers (if (and references
4664 (setq parent (gnus-parent-id references)))
4665 (car (gnus-id-to-thread parent))
4666 nil))
4667 (decf generation))
4668 (and (not (eq headers in-headers))
4669 headers)))
eec82323
LMI
4670
4671(defun gnus-id-to-thread (id)
4672 "Return the (sub-)thread where ID appears."
4673 (gnus-gethash id gnus-newsgroup-dependencies))
4674
4675(defun gnus-id-to-article (id)
4676 "Return the article number of ID."
4677 (let ((thread (gnus-id-to-thread id)))
4678 (when (and thread
4679 (car thread))
4680 (mail-header-number (car thread)))))
4681
4682(defun gnus-id-to-header (id)
4683 "Return the article headers of ID."
4684 (car (gnus-id-to-thread id)))
4685
4686(defun gnus-article-displayed-root-p (article)
4687 "Say whether ARTICLE is a root(ish) article."
4688 (let ((level (gnus-summary-thread-level article))
4689 (refs (mail-header-references (gnus-summary-article-header article)))
4690 particle)
4691 (cond
4692 ((null level) nil)
4693 ((zerop level) t)
4694 ((null refs) t)
4695 ((null (gnus-parent-id refs)) t)
4696 ((and (= 1 level)
4697 (null (setq particle (gnus-id-to-article
4698 (gnus-parent-id refs))))
4699 (null (gnus-summary-thread-level particle)))))))
4700
4701(defun gnus-root-id (id)
4702 "Return the id of the root of the thread where ID appears."
4703 (let (last-id prev)
6748645f 4704 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4705 (setq last-id id
4706 id (gnus-parent-id (mail-header-references prev))))
4707 last-id))
4708
6748645f
LMI
4709(defun gnus-articles-in-thread (thread)
4710 "Return the list of articles in THREAD."
4711 (cons (mail-header-number (car thread))
4712 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4713
eec82323
LMI
4714(defun gnus-remove-thread (id &optional dont-remove)
4715 "Remove the thread that has ID in it."
6748645f 4716 (let (headers thread last-id)
eec82323 4717 ;; First go up in this thread until we find the root.
6748645f
LMI
4718 (setq last-id (gnus-root-id id)
4719 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4720 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4721 ;; been gathered into some loose thread, so we have to search
4722 ;; through the threads to find the thread we wanted.
4723 (let ((threads gnus-newsgroup-threads)
4724 sub)
4725 (while threads
4726 (setq sub (car threads))
4727 (if (stringp (car sub))
4728 ;; This is a gathered thread, so we look at the roots
4729 ;; below it to find whether this article is in this
4730 ;; gathered root.
4731 (progn
4732 (setq sub (cdr sub))
4733 (while sub
4734 (when (member (caar sub) headers)
4735 (setq thread (car threads)
4736 threads nil
4737 sub nil))
4738 (setq sub (cdr sub))))
4739 ;; It's an ordinary thread, so we check it.
4740 (when (eq (car sub) (car headers))
4741 (setq thread sub
4742 threads nil)))
4743 (setq threads (cdr threads)))
4744 ;; If this article is in no thread, then it's a root.
4745 (if thread
4746 (unless dont-remove
4747 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4748 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4749 (when thread
4750 (prog1
4751 thread ; We return this thread.
4752 (unless dont-remove
4753 (if (stringp (car thread))
4754 (progn
4755 ;; If we use dummy roots, then we have to remove the
4756 ;; dummy root as well.
4757 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4758 ;; We go to the dummy root by going to
4759 ;; the first sub-"thread", and then one line up.
4760 (gnus-summary-goto-article
4761 (mail-header-number (caadr thread)))
4762 (forward-line -1)
eec82323
LMI
4763 (gnus-delete-line)
4764 (gnus-data-compute-positions))
4765 (setq thread (cdr thread))
4766 (while thread
4767 (gnus-remove-thread-1 (car thread))
4768 (setq thread (cdr thread))))
4769 (gnus-remove-thread-1 thread))))))))
4770
4771(defun gnus-remove-thread-1 (thread)
4772 "Remove the thread THREAD recursively."
4773 (let ((number (mail-header-number (pop thread)))
4774 d)
4775 (setq thread (reverse thread))
4776 (while thread
4777 (gnus-remove-thread-1 (pop thread)))
4778 (when (setq d (gnus-data-find number))
4779 (goto-char (gnus-data-pos d))
16409b0b 4780 (gnus-summary-show-thread)
eec82323
LMI
4781 (gnus-data-remove
4782 number
01c52d31 4783 (- (point-at-bol)
eec82323 4784 (prog1
01c52d31 4785 (1+ (point-at-eol))
eec82323
LMI
4786 (gnus-delete-line)))))))
4787
4921bbdd 4788(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4789 (sort (mapcar (lambda (thread)
4790 (cons (car thread)
4791 (and (cdr thread)
4921bbdd 4792 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4793 threads) func))
4794
4921bbdd
CY
4795(defun gnus-sort-threads-loop (threads func)
4796 (let* ((superthread (cons nil threads))
4797 (stack (list (cons superthread threads)))
4798 remaining-threads thread)
4799 (while stack
4800 (setq remaining-threads (cdr (car stack)))
4801 (if remaining-threads
4802 (progn (setq thread (car remaining-threads))
4803 (setcdr (car stack) (cdr remaining-threads))
4804 (if (cdr thread)
4805 (push (cons thread (cdr thread)) stack)))
4806 (setq thread (caar stack))
4807 (setcdr thread (sort (cdr thread) func))
4808 (pop stack)))
4809 (cdr superthread)))
4810
eec82323
LMI
4811(defun gnus-sort-threads (threads)
4812 "Sort THREADS."
4813 (if (not gnus-thread-sort-functions)
4814 threads
6748645f 4815 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4816 (prog1
4817 (condition-case nil
4818 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4819 (gnus-sort-threads-recursive
4820 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4821 ;; Even after binding max-lisp-eval-depth, the recursive
4822 ;; sorter might fail for very long threads. In that case,
4823 ;; try using a (less well-tested) non-recursive sorter.
3d6e7a43
KY
4824 (error (gnus-message 9 "Sorting threads with loop...")
4825 (gnus-sort-threads-loop
4921bbdd
CY
4826 threads (gnus-make-sort-function
4827 gnus-thread-sort-functions))))
4828 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4829
4830(defun gnus-sort-articles (articles)
4831 "Sort ARTICLES."
4832 (when gnus-article-sort-functions
4833 (gnus-message 7 "Sorting articles...")
4834 (prog1
4835 (setq gnus-newsgroup-headers
4836 (sort articles (gnus-make-sort-function
4837 gnus-article-sort-functions)))
4838 (gnus-message 7 "Sorting articles...done"))))
4839
4840;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4841(defmacro gnus-thread-header (thread)
16409b0b
GM
4842 "Return header of first article in THREAD.
4843Note that THREAD must never, ever be anything else than a variable -
4844using some other form will lead to serious barfage."
eec82323
LMI
4845 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4846 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4847 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4848 (vector thread) 2))
4849
4850(defsubst gnus-article-sort-by-number (h1 h2)
4851 "Sort articles by article number."
4852 (< (mail-header-number h1)
4853 (mail-header-number h2)))
4854
4855(defun gnus-thread-sort-by-number (h1 h2)
4856 "Sort threads by root article number."
4857 (gnus-article-sort-by-number
4858 (gnus-thread-header h1) (gnus-thread-header h2)))
4859
23f87bed 4860(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4861 "Sort articles randomly."
23f87bed
MB
4862 (zerop (random 2)))
4863
4864(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4865 "Sort threads randomly."
23f87bed
MB
4866 (gnus-article-sort-by-random
4867 (gnus-thread-header h1) (gnus-thread-header h2)))
4868
eec82323
LMI
4869(defsubst gnus-article-sort-by-lines (h1 h2)
4870 "Sort articles by article Lines header."
4871 (< (mail-header-lines h1)
4872 (mail-header-lines h2)))
4873
4874(defun gnus-thread-sort-by-lines (h1 h2)
4875 "Sort threads by root article Lines header."
4876 (gnus-article-sort-by-lines
4877 (gnus-thread-header h1) (gnus-thread-header h2)))
4878
16409b0b
GM
4879(defsubst gnus-article-sort-by-chars (h1 h2)
4880 "Sort articles by octet length."
4881 (< (mail-header-chars h1)
4882 (mail-header-chars h2)))
4883
4884(defun gnus-thread-sort-by-chars (h1 h2)
4885 "Sort threads by root article octet length."
4886 (gnus-article-sort-by-chars
4887 (gnus-thread-header h1) (gnus-thread-header h2)))
4888
eec82323
LMI
4889(defsubst gnus-article-sort-by-author (h1 h2)
4890 "Sort articles by root author."
b4fde39f 4891 (gnus-string<
eec82323
LMI
4892 (let ((extract (funcall
4893 gnus-extract-address-components
4894 (mail-header-from h1))))
4895 (or (car extract) (cadr extract) ""))
4896 (let ((extract (funcall
4897 gnus-extract-address-components
4898 (mail-header-from h2))))
4899 (or (car extract) (cadr extract) ""))))
4900
4901(defun gnus-thread-sort-by-author (h1 h2)
4902 "Sort threads by root author."
4903 (gnus-article-sort-by-author
4904 (gnus-thread-header h1) (gnus-thread-header h2)))
4905
01c52d31
MB
4906(defsubst gnus-article-sort-by-recipient (h1 h2)
4907 "Sort articles by recipient."
4908 (gnus-string<
4909 (let ((extract (funcall
4910 gnus-extract-address-components
4911 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4912 (or (car extract) (cadr extract)))
4913 (let ((extract (funcall
4914 gnus-extract-address-components
4915 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4916 (or (car extract) (cadr extract)))))
4917
4918(defun gnus-thread-sort-by-recipient (h1 h2)
4919 "Sort threads by root recipient."
4920 (gnus-article-sort-by-recipient
4921 (gnus-thread-header h1) (gnus-thread-header h2)))
4922
eec82323
LMI
4923(defsubst gnus-article-sort-by-subject (h1 h2)
4924 "Sort articles by root subject."
b4fde39f 4925 (gnus-string<
eec82323
LMI
4926 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4927 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4928
4929(defun gnus-thread-sort-by-subject (h1 h2)
4930 "Sort threads by root subject."
4931 (gnus-article-sort-by-subject
4932 (gnus-thread-header h1) (gnus-thread-header h2)))
4933
4934(defsubst gnus-article-sort-by-date (h1 h2)
4935 "Sort articles by root article date."
16409b0b 4936 (time-less-p
eec82323
LMI
4937 (gnus-date-get-time (mail-header-date h1))
4938 (gnus-date-get-time (mail-header-date h2))))
4939
4940(defun gnus-thread-sort-by-date (h1 h2)
4941 "Sort threads by root article date."
4942 (gnus-article-sort-by-date
4943 (gnus-thread-header h1) (gnus-thread-header h2)))
4944
4945(defsubst gnus-article-sort-by-score (h1 h2)
4946 "Sort articles by root article score.
4947Unscored articles will be counted as having a score of zero."
4948 (> (or (cdr (assq (mail-header-number h1)
4949 gnus-newsgroup-scored))
4950 gnus-summary-default-score 0)
4951 (or (cdr (assq (mail-header-number h2)
4952 gnus-newsgroup-scored))
4953 gnus-summary-default-score 0)))
4954
4955(defun gnus-thread-sort-by-score (h1 h2)
4956 "Sort threads by root article score."
4957 (gnus-article-sort-by-score
4958 (gnus-thread-header h1) (gnus-thread-header h2)))
4959
4960(defun gnus-thread-sort-by-total-score (h1 h2)
4961 "Sort threads by the sum of all scores in the thread.
4962Unscored articles will be counted as having a score of zero."
4963 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4964
4965(defun gnus-thread-total-score (thread)
16409b0b 4966 ;; This function find the total score of THREAD.
23f87bed
MB
4967 (cond
4968 ((null thread)
4969 0)
4970 ((consp thread)
4971 (if (stringp (car thread))
4972 (apply gnus-thread-score-function 0
4973 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4974 (gnus-thread-total-score-1 thread)))
4975 (t
4976 (gnus-thread-total-score-1 (list thread)))))
4977
4978(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4979 "Sort threads such that the thread with the most recently arrived article comes first."
4980 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4981
4982(defun gnus-thread-highest-number (thread)
4983 "Return the highest article number in THREAD."
4984 (apply 'max (mapcar (lambda (header)
4985 (mail-header-number header))
4986 (message-flatten-list thread))))
4987
4988(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4989 "Sort threads such that the thread with the most recently dated article comes first."
4990 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4991
3d6e7a43
KY
4992; Since this is called not only to sort the top-level threads, but
4993; also in recursive sorts to order the articles within a thread, each
4994; article will be processed many times. Thus it speeds things up
4995; quite a bit to use gnus-date-get-time, which caches the time value.
23f87bed
MB
4996(defun gnus-thread-latest-date (thread)
4997 "Return the highest article date in THREAD."
3d6e7a43
KY
4998 (apply 'max
4999 (mapcar (lambda (header) (gnus-float-time
5000 (gnus-date-get-time
5001 (mail-header-date header))))
5002 (message-flatten-list thread))))
eec82323
LMI
5003
5004(defun gnus-thread-total-score-1 (root)
5005 ;; This function find the total score of the thread below ROOT.
5006 (setq root (car root))
5007 (apply gnus-thread-score-function
5008 (or (append
5009 (mapcar 'gnus-thread-total-score
6748645f 5010 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5011 (when (> (mail-header-number root) 0)
5012 (list (or (cdr (assq (mail-header-number root)
5013 gnus-newsgroup-scored))
5014 gnus-summary-default-score 0))))
5015 (list gnus-summary-default-score)
5016 '(0))))
5017
5018;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5019(defvar gnus-tmp-prev-subject nil)
5020(defvar gnus-tmp-false-parent nil)
5021(defvar gnus-tmp-root-expunged nil)
5022(defvar gnus-tmp-dummy-line nil)
5023
16409b0b
GM
5024(defun gnus-extra-header (type &optional header)
5025 "Return the extra header of TYPE."
5026 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5027 ""))
5028
23f87bed
MB
5029(defvar gnus-tmp-thread-tree-header-string "")
5030
5031(defcustom gnus-sum-thread-tree-root "> "
5032 "With %B spec, used for the root of a thread.
5033If nil, use subject instead."
bf247b6e 5034 :version "22.1"
ad136a7c 5035 :type '(radio (const :format "%v " nil) string)
23f87bed 5036 :group 'gnus-thread)
01c52d31 5037
23f87bed
MB
5038(defcustom gnus-sum-thread-tree-false-root "> "
5039 "With %B spec, used for a false root of a thread.
5040If nil, use subject instead."
bf247b6e 5041 :version "22.1"
ad136a7c 5042 :type '(radio (const :format "%v " nil) string)
23f87bed 5043 :group 'gnus-thread)
01c52d31 5044
23f87bed
MB
5045(defcustom gnus-sum-thread-tree-single-indent ""
5046 "With %B spec, used for a thread with just one message.
5047If nil, use subject instead."
bf247b6e 5048 :version "22.1"
ad136a7c 5049 :type '(radio (const :format "%v " nil) string)
23f87bed 5050 :group 'gnus-thread)
01c52d31 5051
23f87bed
MB
5052(defcustom gnus-sum-thread-tree-vertical "| "
5053 "With %B spec, used for drawing a vertical line."
bf247b6e 5054 :version "22.1"
23f87bed
MB
5055 :type 'string
5056 :group 'gnus-thread)
01c52d31 5057
23f87bed
MB
5058(defcustom gnus-sum-thread-tree-indent " "
5059 "With %B spec, used for indenting."
bf247b6e 5060 :version "22.1"
23f87bed
MB
5061 :type 'string
5062 :group 'gnus-thread)
01c52d31 5063
23f87bed
MB
5064(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5065 "With %B spec, used for a leaf with brothers."
bf247b6e 5066 :version "22.1"
23f87bed
MB
5067 :type 'string
5068 :group 'gnus-thread)
01c52d31 5069
23f87bed
MB
5070(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5071 "With %B spec, used for a leaf without brothers."
bf247b6e 5072 :version "22.1"
23f87bed
MB
5073 :type 'string
5074 :group 'gnus-thread)
5075
1fc34624
GM
5076(defcustom gnus-summary-display-while-building nil
5077 "If non-nil, show and update the summary buffer as it's being built.
5078If the value is t, update the buffer after every line is inserted. If
5079the value is an integer (N), update the display every N lines."
5080 :version "22.1"
5081 :group 'gnus-thread
5082 :type '(choice (const :tag "off" nil)
5083 number
5084 (const :tag "frequently" t)))
5085
eec82323
LMI
5086(defun gnus-summary-prepare-threads (threads)
5087 "Prepare summary buffer from THREADS and indentation LEVEL.
5088THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5089or a straight list of headers."
5090 (gnus-message 7 "Generating summary...")
5091
5092 (setq gnus-newsgroup-threads threads)
5093 (beginning-of-line)
5094
5095 (let ((gnus-tmp-level 0)
5096 (default-score (or gnus-summary-default-score 0))
5097 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5098 (building-line-count gnus-summary-display-while-building)
5099 (building-count (integerp gnus-summary-display-while-building))
eec82323 5100 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5101 new-roots gnus-tmp-new-adopts thread-end simp-subject
5102 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5103 gnus-tmp-replied gnus-tmp-subject-or-nil
5104 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5105 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5106 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5107 tree-stack)
eec82323 5108
23f87bed
MB
5109 (setq gnus-tmp-prev-subject nil
5110 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5111
5112 (if (vectorp (car threads))
5113 ;; If this is a straight (sic) list of headers, then a
5114 ;; threaded summary display isn't required, so we just create
5115 ;; an unthreaded one.
5116 (gnus-summary-prepare-unthreaded threads)
5117
5118 ;; Do the threaded display.
5119
23f87bed
MB
5120 (if gnus-summary-display-while-building
5121 (switch-to-buffer (buffer-name)))
eec82323
LMI
5122 (while (or threads stack gnus-tmp-new-adopts new-roots)
5123
5124 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5125 (or (not stack)
5126 (= (caar stack) 0))
5127 (not gnus-tmp-false-parent)
5128 (or gnus-tmp-new-adopts new-roots))
5129 (if gnus-tmp-new-adopts
5130 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5131 thread (list (car gnus-tmp-new-adopts))
5132 gnus-tmp-header (caar thread)
5133 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5134 (when new-roots
5135 (setq thread (list (car new-roots))
5136 gnus-tmp-header (caar thread)
5137 new-roots (cdr new-roots))))
5138
5139 (if threads
5140 ;; If there are some threads, we do them before the
5141 ;; threads on the stack.
5142 (setq thread threads
5143 gnus-tmp-header (caar thread))
5144 ;; There were no current threads, so we pop something off
5145 ;; the stack.
5146 (setq state (car stack)
5147 gnus-tmp-level (car state)
23f87bed
MB
5148 tree-stack (cadr state)
5149 thread (caddr state)
eec82323
LMI
5150 stack (cdr stack)
5151 gnus-tmp-header (caar thread))))
5152
5153 (setq gnus-tmp-false-parent nil)
5154 (setq gnus-tmp-root-expunged nil)
5155 (setq thread-end nil)
5156
5157 (if (stringp gnus-tmp-header)
5158 ;; The header is a dummy root.
5159 (cond
5160 ((eq gnus-summary-make-false-root 'adopt)
5161 ;; We let the first article adopt the rest.
5162 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5163 (cddar thread)))
5164 (setq gnus-tmp-gathered
5165 (nconc (mapcar
5166 (lambda (h) (mail-header-number (car h)))
5167 (cddar thread))
5168 gnus-tmp-gathered))
5169 (setq thread (cons (list (caar thread)
5170 (cadar thread))
5171 (cdr thread)))
5172 (setq gnus-tmp-level -1
5173 gnus-tmp-false-parent t))
5174 ((eq gnus-summary-make-false-root 'empty)
5175 ;; We print adopted articles with empty subject fields.
5176 (setq gnus-tmp-gathered
5177 (nconc (mapcar
5178 (lambda (h) (mail-header-number (car h)))
5179 (cddar thread))
5180 gnus-tmp-gathered))
5181 (setq gnus-tmp-level -1))
5182 ((eq gnus-summary-make-false-root 'dummy)
5183 ;; We remember that we probably want to output a dummy
5184 ;; root.
5185 (setq gnus-tmp-dummy-line gnus-tmp-header)
5186 (setq gnus-tmp-prev-subject gnus-tmp-header))
5187 (t
5188 ;; We do not make a root for the gathered
5189 ;; sub-threads at all.
5190 (setq gnus-tmp-level -1)))
5191
5192 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5193 subject (mail-header-subject gnus-tmp-header)
5194 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5195
5196 (cond
5197 ;; If the thread has changed subject, we might want to make
5198 ;; this subthread into a root.
5199 ((and (null gnus-thread-ignore-subject)
5200 (not (zerop gnus-tmp-level))
5201 gnus-tmp-prev-subject
23f87bed 5202 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5203 (setq new-roots (nconc new-roots (list (car thread)))
5204 thread-end t
5205 gnus-tmp-header nil))
5206 ;; If the article lies outside the current limit,
5207 ;; then we do not display it.
5208 ((not (memq number gnus-newsgroup-limit))
5209 (setq gnus-tmp-gathered
5210 (nconc (mapcar
5211 (lambda (h) (mail-header-number (car h)))
5212 (cdar thread))
5213 gnus-tmp-gathered))
5214 (setq gnus-tmp-new-adopts (if (cdar thread)
5215 (append gnus-tmp-new-adopts
5216 (cdar thread))
5217 gnus-tmp-new-adopts)
5218 thread-end t
5219 gnus-tmp-header nil)
5220 (when (zerop gnus-tmp-level)
5221 (setq gnus-tmp-root-expunged t)))
5222 ;; Perhaps this article is to be marked as read?
5223 ((and gnus-summary-mark-below
5224 (< (or (cdr (assq number gnus-newsgroup-scored))
5225 default-score)
5226 gnus-summary-mark-below)
5227 ;; Don't touch sparse articles.
5228 (not (gnus-summary-article-sparse-p number))
5229 (not (gnus-summary-article-ancient-p number)))
5230 (setq gnus-newsgroup-unreads
5231 (delq number gnus-newsgroup-unreads))
5232 (if gnus-newsgroup-auto-expire
23f87bed
MB
5233 (setq gnus-newsgroup-expirable
5234 (gnus-add-to-sorted-list
5235 gnus-newsgroup-expirable number))
eec82323
LMI
5236 (push (cons number gnus-low-score-mark)
5237 gnus-newsgroup-reads))))
5238
5239 (when gnus-tmp-header
5240 ;; We may have an old dummy line to output before this
5241 ;; article.
6748645f
LMI
5242 (when (and gnus-tmp-dummy-line
5243 (gnus-subject-equal
5244 gnus-tmp-dummy-line
5245 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5246 (gnus-summary-insert-dummy-line
5247 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5248 (setq gnus-tmp-dummy-line nil))
5249
5250 ;; Compute the mark.
5251 (setq gnus-tmp-unread (gnus-article-mark number))
5252
5253 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5254 gnus-tmp-header gnus-tmp-level)
5255 gnus-newsgroup-data)
5256
5257 ;; Actually insert the line.
5258 (setq
5259 gnus-tmp-subject-or-nil
5260 (cond
5261 ((and gnus-thread-ignore-subject
5262 gnus-tmp-prev-subject
23f87bed 5263 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5264 subject)
5265 ((zerop gnus-tmp-level)
5266 (if (and (eq gnus-summary-make-false-root 'empty)
5267 (memq number gnus-tmp-gathered)
5268 gnus-tmp-prev-subject
23f87bed 5269 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5270 gnus-summary-same-subject
5271 subject))
5272 (t gnus-summary-same-subject)))
5273 (if (and (eq gnus-summary-make-false-root 'adopt)
5274 (= gnus-tmp-level 1)
5275 (memq number gnus-tmp-gathered))
5276 (setq gnus-tmp-opening-bracket ?\<
5277 gnus-tmp-closing-bracket ?\>)
5278 (setq gnus-tmp-opening-bracket ?\[
5279 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5280 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5281 (gnus-make-thread-indent-array
5282 (max (* 2 (length gnus-thread-indent-array))
5283 gnus-tmp-level)))
eec82323
LMI
5284 (setq
5285 gnus-tmp-indentation
5286 (aref gnus-thread-indent-array gnus-tmp-level)
5287 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5288 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5289 gnus-summary-default-score 0)
5290 gnus-tmp-score-char
5291 (if (or (null gnus-summary-default-score)
5292 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5293 gnus-summary-zcore-fuzz))
23f87bed 5294 ? ;Whitespace
eec82323
LMI
5295 (if (< gnus-tmp-score gnus-summary-default-score)
5296 gnus-score-below-mark gnus-score-over-mark))
5297 gnus-tmp-replied
5298 (cond ((memq number gnus-newsgroup-processable)
5299 gnus-process-mark)
5300 ((memq number gnus-newsgroup-cached)
5301 gnus-cached-mark)
5302 ((memq number gnus-newsgroup-replied)
5303 gnus-replied-mark)
23f87bed
MB
5304 ((memq number gnus-newsgroup-forwarded)
5305 gnus-forwarded-mark)
eec82323
LMI
5306 ((memq number gnus-newsgroup-saved)
5307 gnus-saved-mark)
23f87bed
MB
5308 ((memq number gnus-newsgroup-recent)
5309 gnus-recent-mark)
5310 ((memq number gnus-newsgroup-unseen)
5311 gnus-unseen-mark)
5312 (t gnus-no-mark))
5313 gnus-tmp-downloaded
5314 (cond ((memq number gnus-newsgroup-undownloaded)
5315 gnus-undownloaded-mark)
5316 (gnus-newsgroup-agentized
5317 gnus-downloaded-mark)
5318 (t
5319 gnus-no-mark))
eec82323
LMI
5320 gnus-tmp-from (mail-header-from gnus-tmp-header)
5321 gnus-tmp-name
5322 (cond
5323 ((string-match "<[^>]+> *$" gnus-tmp-from)
5324 (setq beg-match (match-beginning 0))
23f87bed
MB
5325 (or (and (string-match "^\".+\"" gnus-tmp-from)
5326 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5327 (substring gnus-tmp-from 0 beg-match)))
5328 ((string-match "(.+)" gnus-tmp-from)
5329 (substring gnus-tmp-from
5330 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5331 (t gnus-tmp-from))
5332
5333 ;; Do the %B string
5334 gnus-tmp-thread-tree-header-string
5335 (cond
5336 ((not gnus-show-threads) "")
5337 ((zerop gnus-tmp-level)
5338 (cond ((cdar thread)
5339 (or gnus-sum-thread-tree-root subject))
5340 (gnus-tmp-new-adopts
5341 (or gnus-sum-thread-tree-false-root subject))
5342 (t
5343 (or gnus-sum-thread-tree-single-indent subject))))
5344 (t
5345 (concat (apply 'concat
5346 (mapcar (lambda (item)
5347 (if (= item 1)
5348 gnus-sum-thread-tree-vertical
5349 gnus-sum-thread-tree-indent))
5350 (cdr (reverse tree-stack))))
5351 (if (nth 1 thread)
5352 gnus-sum-thread-tree-leaf-with-other
5353 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5354 (when (string= gnus-tmp-name "")
5355 (setq gnus-tmp-name gnus-tmp-from))
5356 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5357 (setq gnus-tmp-lines -1))
5358 (if (= gnus-tmp-lines -1)
5359 (setq gnus-tmp-lines "?")
5360 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5361 (gnus-put-text-property
64763fe3
MB
5362 (point)
5363 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5364 'gnus-number number)
64763fe3
MB
5365 (when gnus-visual-p
5366 (forward-line -1)
a9ec34f4
LMI
5367 (gnus-summary-highlight-line)
5368 (when gnus-summary-update-hook
5369 (gnus-run-hooks 'gnus-summary-update-hook))
64763fe3 5370 (forward-line 1))
eec82323 5371
64763fe3 5372 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5373
5374 (when (nth 1 thread)
23f87bed
MB
5375 (push (list (max 0 gnus-tmp-level)
5376 (copy-sequence tree-stack)
5377 (nthcdr 1 thread))
5378 stack))
5379 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5380 (incf gnus-tmp-level)
5381 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5382 (if gnus-summary-display-while-building
5383 (if building-count
5384 (progn
5385 ;; use a set frequency
5386 (setq building-line-count (1- building-line-count))
5387 (when (= building-line-count 0)
5388 (sit-for 0)
5389 (setq building-line-count
5390 gnus-summary-display-while-building)))
5391 ;; always
5392 (sit-for 0)))
eec82323
LMI
5393 (unless threads
5394 (setq gnus-tmp-level 0)))))
5395 (gnus-message 7 "Generating summary...done"))
5396
5397(defun gnus-summary-prepare-unthreaded (headers)
5398 "Generate an unthreaded summary buffer based on HEADERS."
5399 (let (header number mark)
5400
5401 (beginning-of-line)
5402
5403 (while headers
5404 ;; We may have to root out some bad articles...
5405 (when (memq (setq number (mail-header-number
5406 (setq header (pop headers))))
5407 gnus-newsgroup-limit)
5408 ;; Mark article as read when it has a low score.
5409 (when (and gnus-summary-mark-below
5410 (< (or (cdr (assq number gnus-newsgroup-scored))
5411 gnus-summary-default-score 0)
5412 gnus-summary-mark-below)
5413 (not (gnus-summary-article-ancient-p number)))
5414 (setq gnus-newsgroup-unreads
5415 (delq number gnus-newsgroup-unreads))
5416 (if gnus-newsgroup-auto-expire
5417 (push number gnus-newsgroup-expirable)
5418 (push (cons number gnus-low-score-mark)
5419 gnus-newsgroup-reads)))
5420
5421 (setq mark (gnus-article-mark number))
5422 (push (gnus-data-make number mark (1+ (point)) header 0)
5423 gnus-newsgroup-data)
5424 (gnus-summary-insert-line
5425 header 0 number
23f87bed 5426 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5427 mark (memq number gnus-newsgroup-replied)
5428 (memq number gnus-newsgroup-expirable)
5429 (mail-header-subject header) nil
5430 (cdr (assq number gnus-newsgroup-scored))
5431 (memq number gnus-newsgroup-processable))))))
5432
16409b0b
GM
5433(defun gnus-summary-remove-list-identifiers ()
5434 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5435 (let ((regexp (if (consp gnus-list-identifiers)
5436 (mapconcat 'identity gnus-list-identifiers " *\\|")
5437 gnus-list-identifiers))
5438 changed subject)
5439 (when regexp
01c52d31 5440 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5441 (dolist (header gnus-newsgroup-headers)
5442 (setq subject (mail-header-subject header)
5443 changed nil)
01c52d31 5444 (while (string-match regexp subject)
23f87bed 5445 (setq subject
01c52d31 5446 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5447 (substring subject (match-end 0)))
5448 changed t))
23f87bed 5449 (when changed
01c52d31
MB
5450 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5451 (setq subject
5452 (concat (substring subject 0 (match-beginning 1))
5453 (substring subject (match-end 1)))))
23f87bed
MB
5454 (mail-header-set-subject header subject))))))
5455
5456(defun gnus-fetch-headers (articles)
5457 "Fetch headers of ARTICLES."
5458 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5459 (gnus-message 5 "Fetching headers for %s..." name)
5460 (prog1
5461 (if (eq 'nov
5462 (setq gnus-headers-retrieved-by
5463 (gnus-retrieve-headers
5464 articles gnus-newsgroup-name
5465 ;; We might want to fetch old headers, but
5466 ;; not if there is only 1 article.
5467 (and (or (and
5468 (not (eq gnus-fetch-old-headers 'some))
5469 (not (numberp gnus-fetch-old-headers)))
5470 (> (length articles) 1))
5471 gnus-fetch-old-headers))))
5472 (gnus-get-newsgroup-headers-xover
5473 articles nil nil gnus-newsgroup-name t)
5474 (gnus-get-newsgroup-headers))
5475 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5476
6748645f 5477(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5478 "Select newsgroup GROUP.
6748645f
LMI
5479If READ-ALL is non-nil, all articles in the group are selected.
5480If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5481 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5482 ;;!!! Dirty hack; should be removed.
5483 (gnus-summary-ignore-duplicates
23f87bed 5484 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5485 t
5486 gnus-summary-ignore-duplicates))
5487 (info (nth 2 entry))
01c52d31 5488 charset articles fetched-articles cached)
eec82323
LMI
5489
5490 (unless (gnus-check-server
475e0e0c
GM
5491 (set (make-local-variable 'gnus-current-select-method)
5492 (gnus-find-method-for-group group)))
eec82323 5493 (error "Couldn't open server"))
01c52d31 5494 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5495
5496 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5497 (gnus-activate-group group) ; Or we can activate it...
5498 (progn ; Or we bug out.
5499 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5500 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5501 (error
5502 "Couldn't activate group %s: %s"
5503 (mm-decode-coding-string group charset)
5504 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5505
5506 (unless (gnus-request-group group t)
01c52d31
MB
5507 (when (equal major-mode 'gnus-summary-mode)
5508 (gnus-kill-buffer (current-buffer)))
5509 (error "Couldn't request group %s: %s"
5510 (mm-decode-coding-string group charset)
5511 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5512
23f87bed 5513 (when gnus-agent
54506618 5514 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5515
23f87bed
MB
5516 (setq gnus-summary-use-undownloaded-faces
5517 (gnus-agent-find-parameter
5518 group
5519 'agent-enable-undownloaded-faces)))
5520
5521 (setq gnus-newsgroup-name group
5522 gnus-newsgroup-unselected nil
5523 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5524
5525 (let ((display (gnus-group-find-parameter group 'display)))
5526 (setq gnus-newsgroup-display
5527 (cond
5528 ((not (zerop (or (car-safe read-all) 0)))
5529 ;; The user entered the group with C-u SPC/RET, let's show
5530 ;; all articles.
5531 'gnus-not-ignore)
5532 ((eq display 'all)
5533 'gnus-not-ignore)
5534 ((arrayp display)
5535 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5536 ((numberp display)
5537 ;; The following is probably the "correct" solution, but
5538 ;; it makes Gnus fetch all headers and then limit the
5539 ;; articles (which is slow), so instead we hack the
5540 ;; select-articles parameter instead. -- Simon Josefsson
5541 ;; <jas@kth.se>
5542 ;;
5543 ;; (gnus-byte-compile
5544 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5545 ;; display)))))
5546 (setq select-articles
5547 (gnus-uncompress-range
5548 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5549 (if (> tmp 0)
5550 tmp
5551 1))
5552 (cdr (gnus-active group)))))
5553 nil)
5554 (t
5555 nil))))
eec82323 5556
23f87bed 5557 (gnus-summary-setup-default-charset)
eec82323
LMI
5558
5559 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5560 (when (gnus-virtual-group-p group)
5561 (setq cached gnus-newsgroup-cached))
5562
5563 (setq gnus-newsgroup-unreads
23f87bed
MB
5564 (gnus-sorted-ndifference
5565 (gnus-sorted-ndifference gnus-newsgroup-unreads
5566 gnus-newsgroup-marked)
eec82323
LMI
5567 gnus-newsgroup-dormant))
5568
5569 (setq gnus-newsgroup-processable nil)
5570
5571 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5572
23f87bed
MB
5573 ;; Adjust and set lists of article marks.
5574 (when info
5575 (gnus-adjust-marked-articles info))
6748645f
LMI
5576 (if (setq articles select-articles)
5577 (setq gnus-newsgroup-unselected
23f87bed 5578 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5579 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5580
5581 (cond
5582 ((null articles)
5583 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5584 'quit)
5585 ((eq articles 0) nil)
5586 (t
5587 ;; Init the dependencies hash table.
5588 (setq gnus-newsgroup-dependencies
5589 (gnus-make-hashtable (length articles)))
16409b0b 5590 (gnus-set-global-variables)
eec82323 5591 ;; Retrieve the headers and read them in.
23f87bed
MB
5592
5593 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5594
5595 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5596 (when cached
5597 (setq gnus-newsgroup-cached cached))
5598
5599 ;; Suppress duplicates?
5600 (when gnus-suppress-duplicates
5601 (gnus-dup-suppress-articles))
5602
5603 ;; Set the initial limit.
5604 (setq gnus-newsgroup-limit (copy-sequence articles))
5605 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5606 (setq fetched-articles
5607 (mapcar (lambda (headers) (mail-header-number headers))
5608 gnus-newsgroup-headers))
5609 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5610 (setq gnus-newsgroup-unreads
23f87bed
MB
5611 (gnus-sorted-nintersection
5612 gnus-newsgroup-unreads fetched-articles))
5613 (gnus-compute-unseen-list)
5614
eec82323
LMI
5615 ;; Removed marked articles that do not exist.
5616 (gnus-update-missing-marks
23f87bed 5617 (gnus-sorted-difference articles fetched-articles))
eec82323 5618 ;; We might want to build some more threads first.
6748645f
LMI
5619 (when (and gnus-fetch-old-headers
5620 (eq gnus-headers-retrieved-by 'nov))
5621 (if (eq gnus-fetch-old-headers 'invisible)
5622 (gnus-build-all-threads)
5623 (gnus-build-old-threads)))
5624 ;; Let the Gnus agent mark articles as read.
5625 (when gnus-agent
5626 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5627 ;; Remove list identifiers from subject
5628 (when gnus-list-identifiers
5629 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5630 ;; Check whether auto-expire is to be done in this group.
5631 (setq gnus-newsgroup-auto-expire
5632 (gnus-group-auto-expirable-p group))
5633 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5634 (unless (and gnus-single-article-buffer
5635 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5636 (gnus-article-setup-buffer))
5637 ;; First and last article in this newsgroup.
5638 (when gnus-newsgroup-headers
5639 (setq gnus-newsgroup-begin
5640 (mail-header-number (car gnus-newsgroup-headers))
5641 gnus-newsgroup-end
5642 (mail-header-number
5643 (gnus-last-element gnus-newsgroup-headers))))
5644 ;; GROUP is successfully selected.
5645 (or gnus-newsgroup-headers t)))))
5646
23f87bed
MB
5647(defun gnus-compute-unseen-list ()
5648 ;; The `seen' marks are treated specially.
5649 (if (not gnus-newsgroup-seen)
5650 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5651 (setq gnus-newsgroup-unseen
5652 (gnus-inverse-list-range-intersection
5653 gnus-newsgroup-articles gnus-newsgroup-seen))))
5654
d09ae6ca
GM
5655(declare-function gnus-get-predicate "gnus-agent" (predicate))
5656
23f87bed
MB
5657(defun gnus-summary-display-make-predicate (display)
5658 (require 'gnus-agent)
5659 (when (= (length display) 1)
5660 (setq display (car display)))
5661 (unless gnus-summary-display-cache
5662 (dolist (elem (append '((unread . unread)
5663 (read . read)
5664 (unseen . unseen))
5665 gnus-article-mark-lists))
5666 (push (cons (cdr elem)
5667 (gnus-byte-compile
5668 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5669 gnus-summary-display-cache)))
5670 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5671 (gnus-category-predicate-cache gnus-summary-display-cache))
5672 (gnus-get-predicate display)))
5673
5674;; Uses the dynamically bound `number' variable.
9efa445f 5675(defvar number)
23f87bed
MB
5676(defun gnus-article-marked-p (type &optional article)
5677 (let ((article (or article number)))
5678 (cond
5679 ((eq type 'tick)
5680 (memq article gnus-newsgroup-marked))
5681 ((eq type 'spam)
5682 (memq article gnus-newsgroup-spam-marked))
5683 ((eq type 'unsend)
5684 (memq article gnus-newsgroup-unsendable))
5685 ((eq type 'undownload)
5686 (memq article gnus-newsgroup-undownloaded))
5687 ((eq type 'download)
5688 (memq article gnus-newsgroup-downloadable))
5689 ((eq type 'unread)
5690 (memq article gnus-newsgroup-unreads))
5691 ((eq type 'read)
5692 (memq article gnus-newsgroup-reads))
5693 ((eq type 'dormant)
5694 (memq article gnus-newsgroup-dormant) )
5695 ((eq type 'expire)
5696 (memq article gnus-newsgroup-expirable))
5697 ((eq type 'reply)
5698 (memq article gnus-newsgroup-replied))
5699 ((eq type 'killed)
5700 (memq article gnus-newsgroup-killed))
5701 ((eq type 'bookmark)
5702 (assq article gnus-newsgroup-bookmarks))
5703 ((eq type 'score)
5704 (assq article gnus-newsgroup-scored))
5705 ((eq type 'save)
5706 (memq article gnus-newsgroup-saved))
5707 ((eq type 'cache)
5708 (memq article gnus-newsgroup-cached))
5709 ((eq type 'forward)
5710 (memq article gnus-newsgroup-forwarded))
5711 ((eq type 'seen)
5712 (not (memq article gnus-newsgroup-unseen)))
5713 ((eq type 'recent)
5714 (memq article gnus-newsgroup-recent))
5715 (t t))))
5716
eec82323 5717(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5718 "Find out what articles the user wants to read."
26c9afc3 5719 (let* ((articles
eec82323
LMI
5720 ;; Select all articles if `read-all' is non-nil, or if there
5721 ;; are no unread articles.
5722 (if (or read-all
5723 (and (zerop (length gnus-newsgroup-marked))
5724 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5725 ;; Fetch all if the predicate is non-nil.
5726 gnus-newsgroup-display)
5727 ;; We want to select the headers for all the articles in
5728 ;; the group, so we select either all the active
5729 ;; articles in the group, or (if that's nil), the
5730 ;; articles in the cache.
16409b0b 5731 (or
4b70e299 5732 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5733 (let ((active (gnus-active group)))
5734 (gnus-uncompress-range
5735 (cons (max (car active)
4b70e299
MB
5736 (- (cdr active)
5737 gnus-newsgroup-maximum-articles
5738 -1))
11abff8e
MB
5739 (cdr active))))
5740 (gnus-uncompress-range (gnus-active group)))
16409b0b 5741 (gnus-cache-articles-in-group group))
23f87bed
MB
5742 ;; Select only the "normal" subset of articles.
5743 (gnus-sorted-nunion
5744 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5745 gnus-newsgroup-unreads)))
eec82323
LMI
5746 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5747 (scored (length scored-list))
5748 (number (length articles))
5749 (marked (+ (length gnus-newsgroup-marked)
5750 (length gnus-newsgroup-dormant)))
5751 (select
5752 (cond
5753 ((numberp read-all)
5754 read-all)
23f87bed
MB
5755 ((numberp gnus-newsgroup-display)
5756 gnus-newsgroup-display)
eec82323
LMI
5757 (t
5758 (condition-case ()
5759 (cond
5760 ((and (or (<= scored marked) (= scored number))
5761 (numberp gnus-large-newsgroup)
5762 (> number gnus-large-newsgroup))
23f87bed
MB
5763 (let* ((cursor-in-echo-area nil)
5764 (initial (gnus-parameter-large-newsgroup-initial
5765 gnus-newsgroup-name))
5766 (input
5767 (read-string
5768 (format
5769 "How many articles from %s (%s %d): "
01c52d31 5770 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5771 (if initial "max" "default")
5772 number)
5773 (if initial
5774 (cons (number-to-string initial)
5775 0)))))
eec82323
LMI
5776 (if (string-match "^[ \t]*$" input) number input)))
5777 ((and (> scored marked) (< scored number)
5778 (> (- scored number) 20))
5779 (let ((input
5780 (read-string
5781 (format "%s %s (%d scored, %d total): "
5782 "How many articles from"
23f87bed
MB
5783 (gnus-group-decoded-name group)
5784 scored number))))
eec82323
LMI
5785 (if (string-match "^[ \t]*$" input)
5786 number input)))
5787 (t number))
d4dfaa19
DL
5788 (quit
5789 (message "Quit getting the articles to read")
5790 nil))))))
eec82323
LMI
5791 (setq select (if (stringp select) (string-to-number select) select))
5792 (if (or (null select) (zerop select))
5793 select
5794 (if (and (not (zerop scored)) (<= (abs select) scored))
5795 (progn
5796 (setq articles (sort scored-list '<))
5797 (setq number (length articles)))
5798 (setq articles (copy-sequence articles)))
5799
5800 (when (< (abs select) number)
5801 (if (< select 0)
5802 ;; Select the N oldest articles.
5803 (setcdr (nthcdr (1- (abs select)) articles) nil)
5804 ;; Select the N most recent articles.
5805 (setq articles (nthcdr (- number select) articles))))
5806 (setq gnus-newsgroup-unselected
23f87bed 5807 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5808 (when gnus-alter-articles-to-read-function
23f87bed 5809 (setq articles
a1506d29 5810 (sort
16409b0b 5811 (funcall gnus-alter-articles-to-read-function
23f87bed 5812 gnus-newsgroup-name articles)
16409b0b 5813 '<)))
eec82323
LMI
5814 articles)))
5815
5816(defun gnus-killed-articles (killed articles)
5817 (let (out)
5818 (while articles
5819 (when (inline (gnus-member-of-range (car articles) killed))
5820 (push (car articles) out))
5821 (setq articles (cdr articles)))
5822 out))
5823
5824(defun gnus-uncompress-marks (marks)
5825 "Uncompress the mark ranges in MARKS."
5826 (let ((uncompressed '(score bookmark))
5827 out)
5828 (while marks
5829 (if (memq (caar marks) uncompressed)
5830 (push (car marks) out)
5831 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5832 (setq marks (cdr marks)))
5833 out))
5834
23f87bed
MB
5835(defun gnus-article-mark-to-type (mark)
5836 "Return the type of MARK."
5837 (or (cadr (assq mark gnus-article-special-mark-lists))
5838 'list))
5839
5840(defun gnus-article-unpropagatable-p (mark)
5841 "Return whether MARK should be propagated to back end."
5842 (memq mark gnus-article-unpropagated-mark-lists))
5843
eec82323 5844(defun gnus-adjust-marked-articles (info)
16409b0b 5845 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5846 (let* ((marked-lists (gnus-info-marks info))
5847 (active (gnus-active (gnus-info-group info)))
5848 (min (car active))
5849 (max (cdr active))
5850 (types gnus-article-mark-lists)
54506618
MB
5851 marks var articles article mark mark-type
5852 bgn end)
eec82323 5853
23f87bed
MB
5854 (dolist (marks marked-lists)
5855 (setq mark (car marks)
5856 mark-type (gnus-article-mark-to-type mark)
5857 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5858
23f87bed
MB
5859 ;; We set the variable according to the type of the marks list,
5860 ;; and then adjust the marks to a subset of the active articles.
eec82323 5861 (cond
54506618 5862 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5863 ((eq mark-type 'list)
54506618
MB
5864 ;; Simultaneously uncompress and clip to active range
5865 ;; See gnus-uncompress-range for a description of possible marks
5866 (let (l lh)
5867 (if (not (cadr marks))
5868 (set var nil)
5869 (setq articles (if (numberp (cddr marks))
5870 (list (cdr marks))
5871 (cdr marks))
5872 lh (cons nil nil)
5873 l lh)
5874
5875 (while (setq article (pop articles))
5876 (cond ((consp article)
5877 (setq bgn (max (car article) min)
5878 end (min (cdr article) max))
5879 (while (<= bgn end)
5880 (setq l (setcdr l (cons bgn nil))
5881 bgn (1+ bgn))))
5882 ((and (<= min article)
5883 (>= max article))
5884 (setq l (setcdr l (cons article nil))))))
5885 (set var (cdr lh)))))
eec82323 5886 ;; Adjust assocs.
23f87bed
MB
5887 ((eq mark-type 'tuple)
5888 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5889 (when (not (listp (cdr (symbol-value var))))
5890 (set var (list (symbol-value var))))
5891 (when (not (listp (cdr articles)))
5892 (setq articles (list articles)))
eec82323
LMI
5893 (while articles
5894 (when (or (not (consp (setq article (pop articles))))
5895 (< (car article) min)
5896 (> (car article) max))
23f87bed
MB
5897 (set var (delq article (symbol-value var))))))
5898 ;; Adjust ranges (sloppily).
5899 ((eq mark-type 'range)
5900 (cond
5901 ((eq mark 'seen)
5902 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5903 ;; It should be (seen (NUM1 . NUM2)).
5904 (when (numberp (cddr marks))
5905 (setcdr marks (list (cdr marks))))
5906 (setq articles (cdr marks))
5907 (while (and articles
5908 (or (and (consp (car articles))
5909 (> min (cdar articles)))
5910 (and (numberp (car articles))
5911 (> min (car articles)))))
5912 (pop articles))
5913 (set var articles))))))))
eec82323
LMI
5914
5915(defun gnus-update-missing-marks (missing)
6748645f 5916 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5917 (when missing
23f87bed 5918 (let (var m)
eec82323 5919 ;; Go through all types.
23f87bed
MB
5920 (dolist (elem gnus-article-mark-lists)
5921 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5922 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5923 (when (symbol-value var)
5924 ;; This list has articles. So we delete all missing
5925 ;; articles from it.
5926 (setq m missing)
5927 (while m
5928 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5929
5930(defun gnus-update-marks ()
5931 "Enter the various lists of marked articles into the newsgroup info list."
5932 (let ((types gnus-article-mark-lists)
5933 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5934 type list newmarked symbol delta-marks)
eec82323 5935 (when info
16409b0b 5936 ;; Add all marks lists to the list of marks lists.
eec82323 5937 (while (setq type (pop types))
16409b0b
GM
5938 (setq list (symbol-value
5939 (setq symbol
23f87bed 5940 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5941
16409b0b 5942 (when list
eec82323
LMI
5943 ;; Get rid of the entries of the articles that have the
5944 ;; default score.
5945 (when (and (eq (cdr type) 'score)
5946 gnus-save-score
5947 list)
5948 (let* ((arts list)
5949 (prev (cons nil list))
5950 (all prev))
5951 (while arts
5952 (if (or (not (consp (car arts)))
5953 (= (cdar arts) gnus-summary-default-score))
5954 (setcdr prev (cdr arts))
5955 (setq prev arts))
5956 (setq arts (cdr arts)))
16409b0b
GM
5957 (setq list (cdr all)))))
5958
23f87bed
MB
5959 (when (eq (cdr type) 'seen)
5960 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5961
5962 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5963 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5964
23f87bed
MB
5965 (when (and (gnus-check-backend-function
5966 'request-set-mark gnus-newsgroup-name)
5967 (not (gnus-article-unpropagatable-p (cdr type))))
5968 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5969 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5970 (add (gnus-remove-from-range
5971 (gnus-copy-sequence list) old)))
5972 (when add
5973 (push (list add 'add (list (cdr type))) delta-marks))
5974 (when del
5975 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5976
16409b0b
GM
5977 (when list
5978 (push (cons (cdr type) list) newmarked)))
5979
5980 (when delta-marks
5981 (unless (gnus-check-group gnus-newsgroup-name)
5982 (error "Can't open server for %s" gnus-newsgroup-name))
5983 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5984
eec82323
LMI
5985 ;; Enter these new marks into the info of the group.
5986 (if (nthcdr 3 info)
5987 (setcar (nthcdr 3 info) newmarked)
5988 ;; Add the marks lists to the end of the info.
5989 (when newmarked
5990 (setcdr (nthcdr 2 info) (list newmarked))))
5991
5992 ;; Cut off the end of the info if there's nothing else there.
5993 (let ((i 5))
5994 (while (and (> i 2)
5995 (not (nth i info)))
5996 (when (nthcdr (decf i) info)
5997 (setcdr (nthcdr i info) nil)))))))
5998
5999(defun gnus-set-mode-line (where)
16409b0b 6000 "Set the mode line of the article or summary buffers.
eec82323
LMI
6001If WHERE is `summary', the summary mode line format will be used."
6002 ;; Is this mode line one we keep updated?
16409b0b
GM
6003 (when (and (memq where gnus-updated-mode-lines)
6004 (symbol-value
6005 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6006 (let (mode-string)
c7a91ce1
SM
6007 ;; We evaluate this in the summary buffer since these
6008 ;; variables are buffer-local to that buffer.
6009 (with-current-buffer gnus-summary-buffer
6010 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6011 ;; below.
6012 (let* ((mformat (symbol-value
6013 (intern
6014 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6015 (gnus-tmp-group-name (gnus-mode-string-quote
6016 (gnus-group-decoded-name
6017 gnus-newsgroup-name)))
eec82323
LMI
6018 (gnus-tmp-article-number (or gnus-current-article 0))
6019 (gnus-tmp-unread gnus-newsgroup-unreads)
6020 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6021 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6022 (gnus-tmp-unread-and-unselected
6023 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6024 (zerop gnus-tmp-unselected))
6025 "")
6026 ((zerop gnus-tmp-unselected)
6027 (format "{%d more}" gnus-tmp-unread-and-unticked))
6028 (t (format "{%d(+%d) more}"
6029 gnus-tmp-unread-and-unticked
6030 gnus-tmp-unselected))))
6031 (gnus-tmp-subject
6032 (if (and gnus-current-headers
6033 (vectorp gnus-current-headers))
6034 (gnus-mode-string-quote
6035 (mail-header-subject gnus-current-headers))
6036 ""))
6037 bufname-length max-len
23f87bed 6038 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6039 (setq mode-string (eval mformat))
6040 (setq bufname-length (if (string-match "%b" mode-string)
6041 (- (length
6042 (buffer-name
6043 (if (eq where 'summary)
6044 nil
6045 (get-buffer gnus-article-buffer))))
6046 2)
6047 0))
6048 (setq max-len (max 4 (if gnus-mode-non-string-length
6049 (- (window-width)
6050 gnus-mode-non-string-length
6051 bufname-length)
6052 (length mode-string))))
6053 ;; We might have to chop a bit of the string off...
6054 (when (> (length mode-string) max-len)
6055 (setq mode-string
16409b0b 6056 (concat (truncate-string-to-width mode-string (- max-len 3))
29d31b55 6057 "...")))))
eec82323
LMI
6058 ;; Update the mode line.
6059 (setq mode-line-buffer-identification
6060 (gnus-mode-line-buffer-identification (list mode-string)))
6061 (set-buffer-modified-p t))))
6062
6063(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6064 "Go through the HEADERS list and add all Xrefs to a hash table.
6065The resulting hash table is returned, or nil if no Xrefs were found."
6066 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6067 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6068 (xref-hashtb (gnus-make-hashtable))
6069 start group entry number xrefs header)
6070 (while headers
6071 (setq header (pop headers))
6072 (when (and (setq xrefs (mail-header-xref header))
6073 (not (memq (setq number (mail-header-number header))
6074 unreads)))
6075 (setq start 0)
6076 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6077 (setq start (match-end 0))
6078 (setq group (if prefix
6079 (concat prefix (substring xrefs (match-beginning 1)
6080 (match-end 1)))
6081 (substring xrefs (match-beginning 1) (match-end 1))))
6082 (setq number
e9bd5782 6083 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6084 (match-end 2))))
6085 (if (setq entry (gnus-gethash group xref-hashtb))
6086 (setcdr entry (cons number (cdr entry)))
6087 (gnus-sethash group (cons number nil) xref-hashtb)))))
6088 (and start xref-hashtb)))
6089
6090(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6091 "Look through all the headers and mark the Xrefs as read."
6092 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6093 name info xref-hashtb idlist method nth4)
398a825b 6094 (with-current-buffer gnus-group-buffer
eec82323
LMI
6095 (when (setq xref-hashtb
6096 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6097 (mapatoms
6098 (lambda (group)
6099 (unless (string= from-newsgroup (setq name (symbol-name group)))
6100 (setq idlist (symbol-value group))
6101 ;; Dead groups are not updated.
6102 (and (prog1
01c52d31 6103 (setq info (gnus-get-info name))
eec82323
LMI
6104 (when (stringp (setq nth4 (gnus-info-method info)))
6105 (setq nth4 (gnus-server-to-method nth4))))
6106 ;; Only do the xrefs if the group has the same
6107 ;; select method as the group we have just read.
6108 (or (gnus-methods-equal-p
6109 nth4 (gnus-find-method-for-group from-newsgroup))
6110 virtual
6111 (equal nth4 (setq method (gnus-find-method-for-group
6112 from-newsgroup)))
6113 (and (equal (car nth4) (car method))
6114 (equal (nth 1 nth4) (nth 1 method))))
6115 gnus-use-cross-reference
6116 (or (not (eq gnus-use-cross-reference t))
6117 virtual
6118 ;; Only do cross-references on subscribed
6119 ;; groups, if that is what is wanted.
6120 (<= (gnus-info-level info) gnus-level-subscribed))
6121 (gnus-group-make-articles-read name idlist))))
6122 xref-hashtb)))))
6123
6748645f 6124(defun gnus-compute-read-articles (group articles)
01c52d31 6125 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6126 (info (nth 2 entry))
6127 (active (gnus-active group))
6128 ninfo)
6129 (when entry
16409b0b 6130 ;; First peel off all invalid article numbers.
6748645f
LMI
6131 (when active
6132 (let ((ids articles)
6133 id first)
6134 (while (setq id (pop ids))
6135 (when (and first (> id (cdr active)))
6136 ;; We'll end up in this situation in one particular
6137 ;; obscure situation. If you re-scan a group and get
6138 ;; a new article that is cross-posted to a different
6139 ;; group that has not been re-scanned, you might get
6140 ;; crossposted article that has a higher number than
6141 ;; Gnus believes possible. So we re-activate this
6142 ;; group as well. This might mean doing the
6143 ;; crossposting thingy will *increase* the number
6144 ;; of articles in some groups. Tsk, tsk.
6145 (setq active (or (gnus-activate-group group) active)))
6146 (when (or (> id (cdr active))
6147 (< id (car active)))
6148 (setq articles (delq id articles))))))
6149 ;; If the read list is nil, we init it.
6150 (if (and active
6151 (null (gnus-info-read info))
6152 (> (car active) 1))
6153 (setq ninfo (cons 1 (1- (car active))))
6154 (setq ninfo (gnus-info-read info)))
6155 ;; Then we add the read articles to the range.
6156 (gnus-add-to-range
6157 ninfo (setq articles (sort articles '<))))))
6158
eec82323
LMI
6159(defun gnus-group-make-articles-read (group articles)
6160 "Update the info of GROUP to say that ARTICLES are read."
6161 (let* ((num 0)
01c52d31 6162 (entry (gnus-group-entry group))
eec82323
LMI
6163 (info (nth 2 entry))
6164 (active (gnus-active group))
6165 range)
6748645f
LMI
6166 (when entry
6167 (setq range (gnus-compute-read-articles group articles))
01c52d31 6168 (with-current-buffer gnus-group-buffer
6748645f
LMI
6169 (gnus-undo-register
6170 `(progn
6171 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6172 (gnus-info-set-read ',info ',(gnus-info-read info))
6173 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6174 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6175 (gnus-group-update-group ,group t))))
6176 ;; Add the read articles to the range.
6177 (gnus-info-set-read info range)
23f87bed 6178 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6179 ;; Then we have to re-compute how many unread
6180 ;; articles there are in this group.
6181 (when active
6182 (cond
6183 ((not range)
6184 (setq num (- (1+ (cdr active)) (car active))))
6185 ((not (listp (cdr range)))
6186 (setq num (- (cdr active) (- (1+ (cdr range))
6187 (car range)))))
6188 (t
6189 (while range
6190 (if (numberp (car range))
6191 (setq num (1+ num))
6192 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6193 (setq range (cdr range)))
6194 (setq num (- (cdr active) num))))
6195 ;; Update the number of unread articles.
6196 (setcar entry num)
6197 ;; Update the group buffer.
23f87bed
MB
6198 (unless (gnus-ephemeral-group-p group)
6199 (gnus-group-update-group group t))))))
eec82323 6200
eec82323
LMI
6201(defvar gnus-newsgroup-none-id 0)
6202
6203(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6204 (let ((cur nntp-server-buffer)
6205 (dependencies
6206 (or dependencies
01c52d31
MB
6207 (with-current-buffer gnus-summary-buffer
6208 gnus-newsgroup-dependencies)))
6209 headers id end ref number
16409b0b
GM
6210 (mail-parse-charset gnus-newsgroup-charset)
6211 (mail-parse-ignored-charsets
c7a91ce1
SM
6212 (save-current-buffer (condition-case nil
6213 (set-buffer gnus-summary-buffer)
6214 (error))
6215 gnus-newsgroup-ignored-charsets)))
6216 (with-current-buffer nntp-server-buffer
eec82323
LMI
6217 ;; Translate all TAB characters into SPACE characters.
6218 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6219 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6220 (ietf-drums-unfold-fws)
6748645f 6221 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6222 (let ((case-fold-search t)
6748645f 6223 in-reply-to header p lines chars)
eec82323 6224 (goto-char (point-min))
01ccbb85 6225 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6226 ;; do not begin with 2 or 3.
6227 (while (re-search-forward "^[23][0-9]+ " nil t)
6228 (setq id nil
6229 ref nil)
6230 ;; This implementation of this function, with nine
6231 ;; search-forwards instead of the one re-search-forward and
6232 ;; a case (which basically was the old function) is actually
01ccbb85 6233 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6234 ;; can't have everything, I guess. Speed and elegance
6235 ;; doesn't always go hand in hand.
6236 (setq
6237 header
6238 (vector
6239 ;; Number.
6240 (prog1
01c52d31 6241 (setq number (read cur))
eec82323
LMI
6242 (end-of-line)
6243 (setq p (point))
6244 (narrow-to-region (point)
6245 (or (and (search-forward "\n.\n" nil t)
6246 (- (point) 2))
6247 (point))))
6248 ;; Subject.
6249 (progn
6250 (goto-char p)
23f87bed 6251 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6252 (funcall gnus-decode-encoded-word-function
6253 (nnheader-header-value))
2bd3dcae 6254 "(none)"))
eec82323
LMI
6255 ;; From.
6256 (progn
6257 (goto-char p)
23f87bed 6258 (if (search-forward "\nfrom:" nil t)
343d6628 6259 (funcall gnus-decode-encoded-address-function
16409b0b 6260 (nnheader-header-value))
2bd3dcae 6261 "(nobody)"))
eec82323
LMI
6262 ;; Date.
6263 (progn
6264 (goto-char p)
23f87bed 6265 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6266 (nnheader-header-value) ""))
6267 ;; Message-ID.
6268 (progn
6269 (goto-char p)
6748645f
LMI
6270 (setq id (if (re-search-forward
6271 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6272 ;; We do it this way to make sure the Message-ID
6273 ;; is (somewhat) syntactically valid.
6274 (buffer-substring (match-beginning 1)
6275 (match-end 1))
eec82323
LMI
6276 ;; If there was no message-id, we just fake one
6277 ;; to make subsequent routines simpler.
01c52d31 6278 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6279 ;; References.
6280 (progn
6281 (goto-char p)
23f87bed 6282 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6283 (progn
6284 (setq end (point))
6285 (prog1
6286 (nnheader-header-value)
6287 (setq ref
6288 (buffer-substring
6289 (progn
6290 (end-of-line)
6291 (search-backward ">" end t)
6292 (1+ (point)))
6293 (progn
6294 (search-backward "<" end t)
6295 (point))))))
6296 ;; Get the references from the in-reply-to header if there
6297 ;; were no references and the in-reply-to header looks
6298 ;; promising.
23f87bed 6299 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6300 (setq in-reply-to (nnheader-header-value))
6301 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6302 (let (ref2)
6303 (setq ref (substring in-reply-to (match-beginning 0)
6304 (match-end 0)))
6305 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6306 (setq ref2 (substring in-reply-to (match-beginning 0)
6307 (match-end 0)))
6308 (when (> (length ref2) (length ref))
6309 (setq ref ref2)))
6310 ref)
eec82323
LMI
6311 (setq ref nil))))
6312 ;; Chars.
6748645f
LMI
6313 (progn
6314 (goto-char p)
6315 (if (search-forward "\nchars: " nil t)
6316 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6317 chars -1)
6318 -1))
eec82323
LMI
6319 ;; Lines.
6320 (progn
6321 (goto-char p)
6322 (if (search-forward "\nlines: " nil t)
a8151ef7 6323 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6324 lines -1)
6325 -1))
eec82323
LMI
6326 ;; Xref.
6327 (progn
6328 (goto-char p)
23f87bed 6329 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6330 (nnheader-header-value)))
6331 ;; Extra.
6332 (when gnus-extra-headers
6333 (let ((extra gnus-extra-headers)
6334 out)
6335 (while extra
6336 (goto-char p)
6337 (when (search-forward
23f87bed 6338 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6339 (push (cons (car extra) (nnheader-header-value))
6340 out))
6341 (pop extra))
6342 out))))
eec82323
LMI
6343 (when (equal id ref)
6344 (setq ref nil))
6748645f
LMI
6345
6346 (when gnus-alter-header-function
6347 (funcall gnus-alter-header-function header)
6348 (setq id (mail-header-id header)
6349 ref (gnus-parent-id (mail-header-references header))))
6350
6351 (when (setq header
6352 (gnus-dependencies-add-header
6353 header dependencies force-new))
eec82323
LMI
6354 (push header headers))
6355 (goto-char (point-max))
6356 (widen))
6357 (nreverse headers)))))
6358
eec82323
LMI
6359;; Goes through the xover lines and returns a list of vectors
6360(defun gnus-get-newsgroup-headers-xover (sequence &optional
6361 force-new dependencies
6362 group also-fetch-heads)
16409b0b
GM
6363 "Parse the news overview data in the server buffer.
6364Return a list of headers that match SEQUENCE (see
6365`nntp-retrieve-headers')."
eec82323
LMI
6366 ;; Get the Xref when the users reads the articles since most/some
6367 ;; NNTP servers do not include Xrefs when using XOVER.
6368 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6369 (let ((mail-parse-charset gnus-newsgroup-charset)
6370 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6371 (cur nntp-server-buffer)
eec82323 6372 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6373 (allp (cond
6374 ((eq gnus-read-all-available-headers t)
6375 t)
14e6dc54
MB
6376 ((and (stringp gnus-read-all-available-headers)
6377 group)
23f87bed
MB
6378 (string-match gnus-read-all-available-headers group))
6379 (t
6380 nil)))
eec82323 6381 number headers header)
c7a91ce1 6382 (with-current-buffer nntp-server-buffer
16409b0b 6383 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6384 ;; Allow the user to mangle the headers before parsing them.
6748645f 6385 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6386 (goto-char (point-min))
23f87bed
MB
6387 (gnus-parse-without-error
6388 (while (and (or sequence allp)
6389 (not (eobp)))
6390 (setq number (read cur))
6391 (when (not allp)
6392 (while (and sequence
6393 (< (car sequence) number))
6394 (setq sequence (cdr sequence))))
6395 (when (and (or allp
6396 (and sequence
6397 (eq number (car sequence))))
6398 (progn
6399 (setq sequence (cdr sequence))
6400 (setq header (inline
6401 (gnus-nov-parse-line
6402 number dependencies force-new)))))
6403 (push header headers))
6404 (forward-line 1)))
eec82323
LMI
6405 ;; A common bug in inn is that if you have posted an article and
6406 ;; then retrieves the active file, it will answer correctly --
6407 ;; the new article is included. However, a NOV entry for the
6408 ;; article may not have been generated yet, so this may fail.
6409 ;; We work around this problem by retrieving the last few
6410 ;; headers using HEAD.
6411 (if (or (not also-fetch-heads)
6412 (not sequence))
6413 ;; We (probably) got all the headers.
6414 (nreverse headers)
6415 (let ((gnus-nov-is-evil t))
6416 (nconc
6417 (nreverse headers)
23f87bed 6418 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6419 (gnus-get-newsgroup-headers))))))))
6420
6421(defun gnus-article-get-xrefs ()
6422 "Fill in the Xref value in `gnus-current-headers', if necessary.
6423This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6424 (let ((headers (with-current-buffer gnus-summary-buffer
6425 gnus-current-headers)))
eec82323
LMI
6426 (or (not gnus-use-cross-reference)
6427 (not headers)
6428 (and (mail-header-xref headers)
6429 (not (string= (mail-header-xref headers) "")))
6430 (let ((case-fold-search t)
6431 xref)
6432 (save-restriction
6433 (nnheader-narrow-to-headers)
6434 (goto-char (point-min))
16409b0b
GM
6435 (when (or (and (not (eobp))
6436 (eq (downcase (char-after)) ?x)
eec82323
LMI
6437 (looking-at "Xref:"))
6438 (search-forward "\nXref:" nil t))
6439 (goto-char (1+ (match-end 0)))
01c52d31 6440 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6441 (mail-header-set-xref headers xref)))))))
6442
6443(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6444 "Find article ID and insert the summary line for that article.
6445OLD-HEADER can either be a header or a line number to insert
6446the subject line on."
6447 (let* ((line (and (numberp old-header) old-header))
6448 (old-header (and (vectorp old-header) old-header))
6449 (header (cond ((and old-header use-old-header)
16409b0b
GM
6450 old-header)
6451 ((and (numberp id)
6452 (gnus-number-to-header id))
6453 (gnus-number-to-header id))
6454 (t
6455 (gnus-read-header id))))
6456 (number (and (numberp id) id))
6457 d)
eec82323
LMI
6458 (when header
6459 ;; Rebuild the thread that this article is part of and go to the
6460 ;; article we have fetched.
6461 (when (and (not gnus-show-threads)
6462 old-header)
6748645f
LMI
6463 (when (and number
6464 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6465 (goto-char (gnus-data-pos d))
6466 (gnus-data-remove
6467 number
01c52d31 6468 (- (point-at-bol)
eec82323 6469 (prog1
01c52d31 6470 (1+ (point-at-eol))
eec82323 6471 (gnus-delete-line))))))
23f87bed
MB
6472 ;; Remove list identifiers from subject.
6473 (when gnus-list-identifiers
6474 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6475 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6476 (when old-header
6477 (mail-header-set-number header (mail-header-number old-header)))
6478 (setq gnus-newsgroup-sparse
6479 (delq (setq number (mail-header-number header))
6480 gnus-newsgroup-sparse))
6481 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6482 (push number gnus-newsgroup-limit)
6483 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6484 (gnus-summary-goto-subject number nil t))
6485 (when (and (numberp number)
6486 (> number 0))
6487 ;; We have to update the boundaries even if we can't fetch the
6488 ;; article if ID is a number -- so that the next `P' or `N'
6489 ;; command will fetch the previous (or next) article even
6490 ;; if the one we tried to fetch this time has been canceled.
6491 (when (> number gnus-newsgroup-end)
6492 (setq gnus-newsgroup-end number))
6493 (when (< number gnus-newsgroup-begin)
6494 (setq gnus-newsgroup-begin number))
6495 (setq gnus-newsgroup-unselected
6496 (delq number gnus-newsgroup-unselected)))
6497 ;; Report back a success?
6498 (and header (mail-header-number header))))
6499
6500;;; Process/prefix in the summary buffer
6501
6502(defun gnus-summary-work-articles (n)
6748645f
LMI
6503 "Return a list of articles to be worked upon.
6504The prefix argument, the list of process marked articles, and the
6505current article will be taken into consideration."
c7a91ce1 6506 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6507 (cond
6508 (n
6509 ;; A numerical prefix has been given.
6510 (setq n (prefix-numeric-value n))
6511 (let ((backward (< n 0))
6512 (n (abs (prefix-numeric-value n)))
6513 articles article)
6514 (save-excursion
6515 (while
6516 (and (> n 0)
6517 (push (setq article (gnus-summary-article-number))
6518 articles)
6519 (if backward
6520 (gnus-summary-find-prev nil article)
6521 (gnus-summary-find-next nil article)))
6522 (decf n)))
6523 (nreverse articles)))
6524 ((and (gnus-region-active-p) (mark))
6525 (message "region active")
6526 ;; Work on the region between point and mark.
6527 (let ((max (max (point) (mark)))
6528 articles article)
6529 (save-excursion
7dafe00b 6530 (goto-char (min (point) (mark)))
6748645f
LMI
6531 (while
6532 (and
6533 (push (setq article (gnus-summary-article-number)) articles)
6534 (gnus-summary-find-next nil article)
6535 (< (point) max)))
6536 (nreverse articles))))
6537 (gnus-newsgroup-processable
6538 ;; There are process-marked articles present.
6539 ;; Save current state.
6540 (gnus-summary-save-process-mark)
6541 ;; Return the list.
6542 (reverse gnus-newsgroup-processable))
6543 (t
6544 ;; Just return the current article.
6545 (list (gnus-summary-article-number))))))
6546
6547(defmacro gnus-summary-iterate (arg &rest forms)
6548 "Iterate over the process/prefixed articles and do FORMS.
6549ARG is the interactive prefix given to the command. FORMS will be
6550executed with point over the summary line of the articles."
6551 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6552 `(let ((,articles (gnus-summary-work-articles ,arg)))
6553 (while ,articles
6554 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6555 ,@forms
6556 (pop ,articles)))))
6748645f
LMI
6557
6558(put 'gnus-summary-iterate 'lisp-indent-function 1)
6559(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6560
6561(defun gnus-summary-save-process-mark ()
6562 "Push the current set of process marked articles on the stack."
6563 (interactive)
6564 (push (copy-sequence gnus-newsgroup-processable)
6565 gnus-newsgroup-process-stack))
6566
6567(defun gnus-summary-kill-process-mark ()
6568 "Push the current set of process marked articles on the stack and unmark."
6569 (interactive)
6570 (gnus-summary-save-process-mark)
6571 (gnus-summary-unmark-all-processable))
6572
6573(defun gnus-summary-yank-process-mark ()
6574 "Pop the last process mark state off the stack and restore it."
6575 (interactive)
6576 (unless gnus-newsgroup-process-stack
6577 (error "Empty mark stack"))
6578 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6579
6580(defun gnus-summary-process-mark-set (set)
6581 "Make SET into the current process marked articles."
6582 (gnus-summary-unmark-all-processable)
01c52d31 6583 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6584
6585;;; Searching and stuff
6586
6587(defun gnus-summary-search-group (&optional backward use-level)
6588 "Search for next unread newsgroup.
6589If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6590 (with-current-buffer gnus-group-buffer
eec82323
LMI
6591 (when (gnus-group-search-forward
6592 backward nil (if use-level (gnus-group-group-level) nil))
6593 (gnus-group-group-name))))
6594
6595(defun gnus-summary-best-group (&optional exclude-group)
6596 "Find the name of the best unread group.
6597If EXCLUDE-GROUP, do not go to this group."
01c52d31 6598 (with-current-buffer gnus-group-buffer
eec82323
LMI
6599 (save-excursion
6600 (gnus-group-best-unread-group exclude-group))))
6601
23f87bed
MB
6602(defun gnus-summary-find-next (&optional unread article backward)
6603 (if backward
6604 (gnus-summary-find-prev unread article)
eec82323
LMI
6605 (let* ((dummy (gnus-summary-article-intangible-p))
6606 (article (or article (gnus-summary-article-number)))
23f87bed 6607 (data (gnus-data-find-list article))
eec82323
LMI
6608 result)
6609 (when (and (not dummy)
6610 (or (not gnus-summary-check-current)
6611 (not unread)
23f87bed
MB
6612 (not (gnus-data-unread-p (car data)))))
6613 (setq data (cdr data)))
eec82323
LMI
6614 (when (setq result
6615 (if unread
6616 (progn
23f87bed
MB
6617 (while data
6618 (unless (memq (gnus-data-number (car data))
6619 (cond
6620 ((eq gnus-auto-goto-ignores
6621 'always-undownloaded)
6622 gnus-newsgroup-undownloaded)
6623 (gnus-plugged
6624 nil)
6625 ((eq gnus-auto-goto-ignores
6626 'unfetched)
6627 gnus-newsgroup-unfetched)
6628 ((eq gnus-auto-goto-ignores
6629 'undownloaded)
6630 gnus-newsgroup-undownloaded)))
6631 (when (gnus-data-unread-p (car data))
6632 (setq result (car data)
6633 data nil)))
6634 (setq data (cdr data)))
eec82323 6635 result)
23f87bed 6636 (car data)))
eec82323
LMI
6637 (goto-char (gnus-data-pos result))
6638 (gnus-data-number result)))))
6639
6640(defun gnus-summary-find-prev (&optional unread article)
6641 (let* ((eobp (eobp))
6642 (article (or article (gnus-summary-article-number)))
23f87bed 6643 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6644 result)
6645 (when (and (not eobp)
6646 (or (not gnus-summary-check-current)
6647 (not unread)
23f87bed
MB
6648 (not (gnus-data-unread-p (car data)))))
6649 (setq data (cdr data)))
eec82323
LMI
6650 (when (setq result
6651 (if unread
6652 (progn
23f87bed
MB
6653 (while data
6654 (unless (memq (gnus-data-number (car data))
6655 (cond
6656 ((eq gnus-auto-goto-ignores
6657 'always-undownloaded)
6658 gnus-newsgroup-undownloaded)
6659 (gnus-plugged
6660 nil)
6661 ((eq gnus-auto-goto-ignores
6662 'unfetched)
6663 gnus-newsgroup-unfetched)
6664 ((eq gnus-auto-goto-ignores
6665 'undownloaded)
6666 gnus-newsgroup-undownloaded)))
6667 (when (gnus-data-unread-p (car data))
6668 (setq result (car data)
6669 data nil)))
6670 (setq data (cdr data)))
eec82323 6671 result)
23f87bed 6672 (car data)))
eec82323
LMI
6673 (goto-char (gnus-data-pos result))
6674 (gnus-data-number result))))
6675
6676(defun gnus-summary-find-subject (subject &optional unread backward article)
6677 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6678 (article (or article (gnus-summary-article-number)))
6679 (articles (gnus-data-list backward))
6680 (arts (gnus-data-find-list article articles))
6681 result)
6682 (when (or (not gnus-summary-check-current)
6683 (not unread)
6684 (not (gnus-data-unread-p (car arts))))
6685 (setq arts (cdr arts)))
6686 (while arts
6687 (and (or (not unread)
6688 (gnus-data-unread-p (car arts)))
6689 (vectorp (gnus-data-header (car arts)))
6690 (gnus-subject-equal
6691 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6692 (setq result (car arts)
6693 arts nil))
6694 (setq arts (cdr arts)))
6695 (and result
6696 (goto-char (gnus-data-pos result))
6697 (gnus-data-number result))))
6698
6699(defun gnus-summary-search-forward (&optional unread subject backward)
6700 "Search forward for an article.
6701If UNREAD, look for unread articles. If SUBJECT, look for
6702articles with that subject. If BACKWARD, search backward instead."
6703 (cond (subject (gnus-summary-find-subject subject unread backward))
6704 (backward (gnus-summary-find-prev unread))
6705 (t (gnus-summary-find-next unread))))
6706
6707(defun gnus-recenter (&optional n)
6708 "Center point in window and redisplay frame.
6709Also do horizontal recentering."
6710 (interactive "P")
6711 (when (and gnus-auto-center-summary
6712 (not (eq gnus-auto-center-summary 'vertical)))
6713 (gnus-horizontal-recenter))
5aa75bd8
JL
6714 (if (fboundp 'recenter-top-bottom)
6715 (recenter-top-bottom n)
6716 (recenter n)))
6717
6718(put 'gnus-recenter 'isearch-scroll t)
eec82323 6719
7b47345b
AS
6720(defun gnus-forward-line-ignore-invisible (n)
6721 "Move N lines forward (backward if N is negative).
6722Like forward-line, but skip over (and don't count) invisible lines."
6723 (let (done)
6724 (while (and (> n 0) (not done))
6725 ;; If the following character is currently invisible,
6726 ;; skip all characters with that same `invisible' property value.
770d9a1f
KY
6727 (while (gnus-invisible-p (point))
6728 (goto-char (gnus-next-char-property-change (point))))
7b47345b
AS
6729 (forward-line 1)
6730 (if (eobp)
6731 (setq done t)
6732 (setq n (1- n))))
6733 (while (and (< n 0) (not done))
6734 (forward-line -1)
6735 (if (bobp) (setq done t)
6736 (setq n (1+ n))
770d9a1f
KY
6737 (while (and (not (bobp)) (gnus-invisible-p (1- (point))))
6738 (goto-char (gnus-previous-char-property-change (point))))))))
6739
eec82323
LMI
6740(defun gnus-summary-recenter ()
6741 "Center point in the summary window.
6742If `gnus-auto-center-summary' is nil, or the article buffer isn't
6743displayed, no centering will be performed."
6744 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6745 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6746 (interactive)
23f87bed
MB
6747 ;; The user has to want it.
6748 (when gnus-auto-center-summary
6749 (let* ((top (cond ((< (window-height) 4) 0)
6750 ((< (window-height) 7) 1)
6751 (t (if (numberp gnus-auto-center-summary)
6752 gnus-auto-center-summary
01c52d31 6753 (/ (1- (window-height)) 2)))))
23f87bed 6754 (height (1- (window-height)))
7b47345b
AS
6755 (bottom (save-excursion
6756 (goto-char (point-max))
6757 (gnus-forward-line-ignore-invisible (- height))
6758 (point)))
23f87bed 6759 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6760 (when (get-buffer-window gnus-article-buffer)
6761 ;; Only do recentering when the article buffer is displayed,
6762 ;; Set the window start to either `bottom', which is the biggest
6763 ;; possible valid number, or the second line from the top,
6764 ;; whichever is the least.
7b47345b
AS
6765 (let ((top-pos (save-excursion
6766 (gnus-forward-line-ignore-invisible (- top))
6767 (point))))
db7ebd73
MB
6768 (if (> bottom top-pos)
6769 ;; Keep the second line from the top visible
01c52d31 6770 (set-window-start window top-pos)
db7ebd73
MB
6771 ;; Try to keep the bottom line visible; if it's partially
6772 ;; obscured, either scroll one more line to make it fully
6773 ;; visible, or revert to using TOP-POS.
6774 (save-excursion
6775 (goto-char (point-max))
7b47345b 6776 (gnus-forward-line-ignore-invisible -1)
db7ebd73
MB
6777 (let ((last-line-start (point)))
6778 (goto-char bottom)
6779 (set-window-start window (point) t)
6780 (when (not (pos-visible-in-window-p last-line-start window))
7b47345b 6781 (gnus-forward-line-ignore-invisible 1)
db7ebd73 6782 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6783 ;; Do horizontal recentering while we're at it.
6784 (when (and (get-buffer-window (current-buffer) t)
6785 (not (eq gnus-auto-center-summary 'vertical)))
6786 (let ((selected (selected-window)))
6787 (select-window (get-buffer-window (current-buffer) t))
6788 (gnus-summary-position-point)
6789 (gnus-horizontal-recenter)
6790 (select-window selected))))))
6791
6792(defun gnus-summary-jump-to-group (newsgroup)
6793 "Move point to NEWSGROUP in group mode buffer."
6794 ;; Keep update point of group mode buffer if visible.
6795 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6796 (save-window-excursion
6797 ;; Take care of tree window mode.
6798 (when (get-buffer-window gnus-group-buffer)
6799 (pop-to-buffer gnus-group-buffer))
6800 (gnus-group-jump-to-group newsgroup))
6801 (save-excursion
6802 ;; Take care of tree window mode.
c7a91ce1 6803 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6804 (pop-to-buffer gnus-group-buffer)
6805 (set-buffer gnus-group-buffer))
6806 (gnus-group-jump-to-group newsgroup))))
6807
6808;; This function returns a list of article numbers based on the
6809;; difference between the ranges of read articles in this group and
6810;; the range of active articles.
6811(defun gnus-list-of-unread-articles (group)
6812 (let* ((read (gnus-info-read (gnus-get-info group)))
6813 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6814 (last (or (cdr active)
6815 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6816 (bottom (if gnus-newsgroup-maximum-articles
6817 (max (car active)
6818 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6819 (car active)))
eec82323
LMI
6820 first nlast unread)
6821 ;; If none are read, then all are unread.
6822 (if (not read)
11abff8e 6823 (setq first bottom)
eec82323
LMI
6824 ;; If the range of read articles is a single range, then the
6825 ;; first unread article is the article after the last read
6826 ;; article. Sounds logical, doesn't it?
16409b0b 6827 (if (and (not (listp (cdr read)))
11abff8e 6828 (or (< (car read) bottom)
16409b0b
GM
6829 (progn (setq read (list read))
6830 nil)))
11abff8e 6831 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6832 ;; `read' is a list of ranges.
6833 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6834 (caar read)))
6835 1)
11abff8e 6836 (setq first bottom))
eec82323
LMI
6837 (while read
6838 (when first
6839 (while (< first nlast)
54506618
MB
6840 (setq unread (cons first unread)
6841 first (1+ first))))
eec82323
LMI
6842 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6843 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6844 (setq read (cdr read)))))
6845 ;; And add the last unread articles.
6846 (while (<= first last)
54506618
MB
6847 (setq unread (cons first unread)
6848 first (1+ first)))
eec82323 6849 ;; Return the list of unread articles.
6748645f 6850 (delq 0 (nreverse unread))))
eec82323
LMI
6851
6852(defun gnus-list-of-read-articles (group)
6853 "Return a list of unread, unticked and non-dormant articles."
6854 (let* ((info (gnus-get-info group))
6855 (marked (gnus-info-marks info))
6856 (active (gnus-active group)))
6857 (and info active
23f87bed
MB
6858 (gnus-list-range-difference
6859 (gnus-list-range-difference
6860 (gnus-sorted-complement
11abff8e 6861 (gnus-uncompress-range
4b70e299 6862 (if gnus-newsgroup-maximum-articles
11abff8e 6863 (cons (max (car active)
4b70e299
MB
6864 (- (cdr active)
6865 gnus-newsgroup-maximum-articles
6866 -1))
11abff8e
MB
6867 (cdr active))
6868 active))
23f87bed
MB
6869 (gnus-list-of-unread-articles group))
6870 (cdr (assq 'dormant marked)))
6871 (cdr (assq 'tick marked))))))
eec82323 6872
54506618
MB
6873;; This function returns a sequence of article numbers based on the
6874;; difference between the ranges of read articles in this group and
6875;; the range of active articles.
6876(defun gnus-sequence-of-unread-articles (group)
6877 (let* ((read (gnus-info-read (gnus-get-info group)))
6878 (active (or (gnus-active group) (gnus-activate-group group)))
6879 (last (cdr active))
4b70e299
MB
6880 (bottom (if gnus-newsgroup-maximum-articles
6881 (max (car active)
6882 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6883 (car active)))
54506618
MB
6884 first nlast unread)
6885 ;; If none are read, then all are unread.
6886 (if (not read)
11abff8e 6887 (setq first bottom)
54506618
MB
6888 ;; If the range of read articles is a single range, then the
6889 ;; first unread article is the article after the last read
6890 ;; article. Sounds logical, doesn't it?
6891 (if (and (not (listp (cdr read)))
11abff8e 6892 (or (< (car read) bottom)
54506618
MB
6893 (progn (setq read (list read))
6894 nil)))
11abff8e 6895 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6896 ;; `read' is a list of ranges.
6897 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6898 (caar read)))
6899 1)
11abff8e 6900 (setq first bottom))
54506618
MB
6901 (while read
6902 (when first
6903 (push (cons first nlast) unread))
6904 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6905 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6906 (setq read (cdr read)))))
6907 ;; And add the last unread articles.
ba0226dd
MB
6908 (cond ((not (and first last))
6909 nil)
6910 ((< first last)
6911 (push (cons first last) unread))
6912 ((= first last)
6913 (push first unread)))
54506618
MB
6914 ;; Return the sequence of unread articles.
6915 (delq 0 (nreverse unread))))
6916
eec82323
LMI
6917;; Various summary commands
6918
6748645f
LMI
6919(defun gnus-summary-select-article-buffer ()
6920 "Reconfigure windows to show article buffer."
6921 (interactive)
6922 (if (not (gnus-buffer-live-p gnus-article-buffer))
6923 (error "There is no article buffer for this summary buffer")
6924 (gnus-configure-windows 'article)
6925 (select-window (get-buffer-window gnus-article-buffer))))
6926
eec82323
LMI
6927(defun gnus-summary-universal-argument (arg)
6928 "Perform any operation on all articles that are process/prefixed."
6929 (interactive "P")
eec82323
LMI
6930 (let ((articles (gnus-summary-work-articles arg))
6931 func article)
6932 (if (eq
6933 (setq
6934 func
6935 (key-binding
6936 (read-key-sequence
6937 (substitute-command-keys
16409b0b 6938 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6939 'undefined)
6940 (gnus-error 1 "Undefined key")
6941 (save-excursion
6942 (while articles
6943 (gnus-summary-goto-subject (setq article (pop articles)))
6944 (let (gnus-newsgroup-processable)
6945 (command-execute func))
6946 (gnus-summary-remove-process-mark article)))))
6947 (gnus-summary-position-point))
6948
6949(defun gnus-summary-toggle-truncation (&optional arg)
6950 "Toggle truncation of summary lines.
23f87bed 6951With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6952 (interactive "P")
6953 (setq truncate-lines
6954 (if (null arg) (not truncate-lines)
6955 (> (prefix-numeric-value arg) 0)))
6956 (redraw-display))
6957
23f87bed
MB
6958(defun gnus-summary-find-for-reselect ()
6959 "Return the number of an article to stay on across a reselect.
6960The current article is considered, then following articles, then previous
6961articles. An article is sought which is not cancelled and isn't a temporary
6962insertion from another group. If there's no such then return a dummy 0."
6963 (let (found)
6964 (dolist (rev '(nil t))
6965 (unless found ; don't demand the reverse list if we don't need it
6966 (let ((data (gnus-data-find-list
6967 (gnus-summary-article-number) (gnus-data-list rev))))
6968 (while (and data (not found))
6969 (if (and (< 0 (gnus-data-number (car data)))
6970 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6971 (setq found (gnus-data-number (car data))))
6972 (setq data (cdr data))))))
6973 (or found 0)))
6974
eec82323
LMI
6975(defun gnus-summary-reselect-current-group (&optional all rescan)
6976 "Exit and then reselect the current newsgroup.
6977The prefix argument ALL means to select all articles."
6978 (interactive "P")
eec82323
LMI
6979 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6980 (error "Ephemeral groups can't be reselected"))
23f87bed 6981 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6982 (group gnus-newsgroup-name))
6983 (setq gnus-newsgroup-begin nil)
23f87bed 6984 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6985 ;; We have to adjust the point of group mode buffer because
6986 ;; point was moved to the next unread newsgroup by exiting.
6987 (gnus-summary-jump-to-group group)
6988 (when rescan
6989 (save-excursion
6990 (gnus-group-get-new-news-this-group 1)))
6991 (gnus-group-read-group all t)
6992 (gnus-summary-goto-subject current-subject nil t)))
6993
6994(defun gnus-summary-rescan-group (&optional all)
6995 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6996 (interactive "P")
6997 (gnus-summary-reselect-current-group all t))
6998
6999(defun gnus-summary-update-info (&optional non-destructive)
7000 (save-excursion
7001 (let ((group gnus-newsgroup-name))
6748645f
LMI
7002 (when group
7003 (when gnus-newsgroup-kill-headers
7004 (setq gnus-newsgroup-killed
7005 (gnus-compress-sequence
23f87bed
MB
7006 (gnus-sorted-union
7007 (gnus-list-range-intersection
7008 gnus-newsgroup-unselected gnus-newsgroup-killed)
7009 gnus-newsgroup-unreads)
6748645f
LMI
7010 t)))
7011 (unless (listp (cdr gnus-newsgroup-killed))
7012 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
7013 (let ((headers gnus-newsgroup-headers))
7014 ;; Set the new ranges of read articles.
01c52d31 7015 (with-current-buffer gnus-group-buffer
6748645f
LMI
7016 (gnus-undo-force-boundary))
7017 (gnus-update-read-articles
23f87bed
MB
7018 group (gnus-sorted-union
7019 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
7020 ;; Set the current article marks.
7021 (let ((gnus-newsgroup-scored
7022 (if (and (not gnus-save-score)
7023 (not non-destructive))
7024 nil
7025 gnus-newsgroup-scored)))
7026 (save-excursion
7027 (gnus-update-marks)))
7028 ;; Do the cross-ref thing.
7029 (when gnus-use-cross-reference
7030 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7031 ;; Do not switch windows but change the buffer to work.
a8151ef7 7032 (set-buffer gnus-group-buffer)
6748645f
LMI
7033 (unless (gnus-ephemeral-group-p group)
7034 (gnus-group-update-group group)))))))
eec82323
LMI
7035
7036(defun gnus-summary-save-newsrc (&optional force)
7037 "Save the current number of read/marked articles in the dribble buffer.
7038The dribble buffer will then be saved.
7039If FORCE (the prefix), also save the .newsrc file(s)."
7040 (interactive "P")
7041 (gnus-summary-update-info t)
7042 (if force
7043 (gnus-save-newsrc-file)
7044 (gnus-dribble-save)))
7045
704f1663
GM
7046(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7047
23f87bed 7048(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7049 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7050`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7051 (interactive)
7052 (gnus-set-global-variables)
16409b0b 7053 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7054 (with-current-buffer gnus-article-buffer
16409b0b
GM
7055 (mm-destroy-parts gnus-article-mime-handles)
7056 ;; Set it to nil for safety reason.
7057 (setq gnus-article-mime-handle-alist nil)
7058 (setq gnus-article-mime-handles nil)))
eec82323 7059 (gnus-kill-save-kill-buffer)
6748645f 7060 (gnus-async-halt-prefetch)
eec82323
LMI
7061 (let* ((group gnus-newsgroup-name)
7062 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7063 (gnus-group-is-exiting-p t)
eec82323 7064 (mode major-mode)
23f87bed 7065 (group-point nil)
eec82323 7066 (buf (current-buffer)))
16409b0b
GM
7067 (unless quit-config
7068 ;; Do adaptive scoring, and possibly save score files.
7069 (when gnus-newsgroup-adaptive
7070 (gnus-score-adaptive))
7071 (when gnus-use-scoring
7072 (gnus-score-save)))
6748645f 7073 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7074 ;; If we have several article buffers, we kill them at exit.
7075 (unless gnus-single-article-buffer
01c52d31
MB
7076 (when (gnus-buffer-live-p gnus-article-buffer)
7077 (with-current-buffer gnus-article-buffer
7078 ;; Don't kill sticky article buffers
7079 (unless (eq major-mode 'gnus-sticky-article-mode)
7080 (gnus-kill-buffer gnus-article-buffer)
7081 (setq gnus-article-current nil))))
7082 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7083 (when gnus-use-cache
7084 (gnus-cache-possibly-remove-articles)
7085 (gnus-cache-save-buffers))
7086 (gnus-async-prefetch-remove-group group)
7087 (when gnus-suppress-duplicates
7088 (gnus-dup-enter-articles))
7089 (when gnus-use-trees
7090 (gnus-tree-close group))
16409b0b
GM
7091 (when gnus-use-cache
7092 (gnus-cache-write-active))
6748645f
LMI
7093 ;; Remove entries for this group.
7094 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7095 ;; Make all changes in this group permanent.
7096 (unless quit-config
6748645f 7097 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7098 (gnus-summary-update-info))
eec82323
LMI
7099 (gnus-close-group group)
7100 ;; Make sure where we were, and go to next newsgroup.
7101 (set-buffer gnus-group-buffer)
7102 (unless quit-config
7103 (gnus-group-jump-to-group group))
6748645f
LMI
7104 (gnus-run-hooks 'gnus-summary-exit-hook)
7105 (unless (or quit-config
01c52d31 7106 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7107 ;; If this group has disappeared from the summary
7108 ;; buffer, don't skip forwards.
7109 (not (string= group (gnus-group-group-name))))
eec82323 7110 (gnus-group-next-unread-group 1))
a8151ef7 7111 (setq group-point (point))
eec82323
LMI
7112 (if temporary
7113 nil ;Nothing to do.
eec82323
LMI
7114 (set-buffer buf)
7115 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7116 (progn
7117 (gnus-deaden-summary)
7118 (setq mode nil))
eec82323
LMI
7119 ;; We set all buffer-local variables to nil. It is unclear why
7120 ;; this is needed, but if we don't, buffer-local variables are
7121 ;; not garbage-collected, it seems. This would the lead to en
7122 ;; ever-growing Emacs.
7123 (gnus-summary-clear-local-variables)
23f87bed
MB
7124 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7125 (gnus-summary-clear-local-variables))
eec82323
LMI
7126 (when (get-buffer gnus-article-buffer)
7127 (bury-buffer gnus-article-buffer))
eec82323
LMI
7128 ;; Return to group mode buffer.
7129 (when (eq mode 'gnus-summary-mode)
7130 (gnus-kill-buffer buf)))
7131 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7132 (set-buffer gnus-group-buffer)
7133 (if quit-config
7134 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7135 (goto-char group-point)
7136 ;; If gnus-group-buffer is already displayed, make sure we also move
7137 ;; the cursor in the window that displays it.
7138 (let ((win (get-buffer-window (current-buffer) 0)))
7139 (if win (set-window-point win (point))))
d61c212b 7140 (unless leave-hidden
4e90f2b9 7141 (gnus-configure-windows 'group 'force)))
6748645f 7142 ;; Clear the current group name.
eec82323
LMI
7143 (unless quit-config
7144 (setq gnus-newsgroup-name nil)))))
7145
7146(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7147(defun gnus-summary-exit-no-update (&optional no-questions)
7148 "Quit reading current newsgroup without updating read article info."
7149 (interactive)
eec82323 7150 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7151 (gnus-group-is-exiting-p t)
7152 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7153 (quit-config (gnus-group-quit-config group)))
7154 (when (or no-questions
7155 gnus-expert-user
7156 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7157 (gnus-async-halt-prefetch)
23f87bed 7158 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7159 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7160 (with-current-buffer gnus-article-buffer
16409b0b
GM
7161 (mm-destroy-parts gnus-article-mime-handles)
7162 ;; Set it to nil for safety reason.
7163 (setq gnus-article-mime-handle-alist nil)
7164 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7165 ;; If we have several article buffers, we kill them at exit.
7166 (unless gnus-single-article-buffer
7167 (gnus-kill-buffer gnus-article-buffer)
7168 (gnus-kill-buffer gnus-original-article-buffer)
7169 (setq gnus-article-current nil))
7170 (if (not gnus-kill-summary-on-exit)
7171 (gnus-deaden-summary)
7172 (gnus-close-group group)
7173 (gnus-summary-clear-local-variables)
23f87bed
MB
7174 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7175 (gnus-summary-clear-local-variables))
7176 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7177 (unless gnus-single-article-buffer
7178 (setq gnus-article-current nil))
7179 (when gnus-use-trees
7180 (gnus-tree-close group))
7181 (gnus-async-prefetch-remove-group group)
7182 (when (get-buffer gnus-article-buffer)
7183 (bury-buffer gnus-article-buffer))
7184 ;; Return to the group buffer.
7185 (gnus-configure-windows 'group 'force)
7186 ;; Clear the current group name.
7187 (setq gnus-newsgroup-name nil)
23f87bed
MB
7188 (unless (gnus-ephemeral-group-p group)
7189 (gnus-group-update-group group))
eec82323
LMI
7190 (when (equal (gnus-group-group-name) group)
7191 (gnus-group-next-unread-group 1))
7192 (when quit-config
23f87bed 7193 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7194
7195(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7196 "Handle movement when leaving an ephemeral group.
7197The state which existed when entering the ephemeral is reset."
eec82323
LMI
7198 (if (not (buffer-name (car quit-config)))
7199 (gnus-configure-windows 'group 'force)
7200 (set-buffer (car quit-config))
7201 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7202 (gnus-set-global-variables))
7203 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7204 (save-current-buffer
23f87bed
MB
7205 ;; The `gnus-summary-buffer' variable may point
7206 ;; to the old summary buffer when using a single
7207 ;; article buffer.
7208 (unless (gnus-buffer-live-p gnus-summary-buffer)
7209 (set-buffer gnus-group-buffer))
7210 (set-buffer gnus-summary-buffer)
7211 (gnus-set-global-variables))))
eec82323 7212 (if (or (eq (cdr quit-config) 'article)
23f87bed 7213 (eq (cdr quit-config) 'pick))
01c52d31
MB
7214 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7215 (gnus-configure-windows 'pick 'force)
7216 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7217 (gnus-configure-windows (cdr quit-config) 'force))
7218 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7219 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7220 next-unread-noselect))
7221 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7222 'next-noselect)
7223 (gnus-summary-next-subject 1 nil t))
7224 ((eq gnus-auto-select-on-ephemeral-exit
7225 'next-unread-noselect)
7226 (gnus-summary-next-subject 1 t t))))
7227 ;; Hide the article buffer which displays the article different
7228 ;; from the one that the cursor points to in the summary buffer.
7229 (gnus-configure-windows 'summary 'force))
7230 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7231 (gnus-summary-next-subject 1))
7232 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7233 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7234 (gnus-summary-recenter)
7235 (gnus-summary-position-point))))
7236
7237;;; Dead summaries.
7238
bbf52f1e
SM
7239(defvar gnus-dead-summary-mode-map
7240 (let ((map (make-keymap)))
7241 (suppress-keymap map)
7242 (substitute-key-definition 'undefined 'gnus-summary-wake-up-the-dead map)
7243 (dolist (key '("\C-d" "\r" "\177" [delete]))
7244 (define-key map key 'gnus-summary-wake-up-the-dead))
7245 (dolist (key '("q" "Q"))
7246 (define-key map key 'bury-buffer))
7247 map))
7248
7249(define-minor-mode gnus-dead-summary-mode
eec82323 7250 "Minor mode for Gnus summary buffers."
bbf52f1e
SM
7251 :lighter " Dead" :keymap gnus-dead-summary-mode-map
7252 (unless (derived-mode-p 'gnus-summary-mode)
7253 (setq gnus-dead-summary-mode nil)))
eec82323
LMI
7254
7255(defun gnus-deaden-summary ()
7256 "Make the current summary buffer into a dead summary buffer."
7257 ;; Kill any previous dead summary buffer.
7258 (when (and gnus-dead-summary
7259 (buffer-name gnus-dead-summary))
01c52d31 7260 (with-current-buffer gnus-dead-summary
eec82323
LMI
7261 (when gnus-dead-summary-mode
7262 (kill-buffer (current-buffer)))))
7263 ;; Make this the current dead summary.
7264 (setq gnus-dead-summary (current-buffer))
7265 (gnus-dead-summary-mode 1)
7266 (let ((name (buffer-name)))
7267 (when (string-match "Summary" name)
7268 (rename-buffer
7269 (concat (substring name 0 (match-beginning 0)) "Dead "
7270 (substring name (match-beginning 0)))
16409b0b
GM
7271 t)
7272 (bury-buffer))))
eec82323
LMI
7273
7274(defun gnus-kill-or-deaden-summary (buffer)
7275 "Kill or deaden the summary BUFFER."
6748645f
LMI
7276 (save-excursion
7277 (when (and (buffer-name buffer)
7278 (not gnus-single-article-buffer))
01c52d31 7279 (with-current-buffer buffer
6748645f
LMI
7280 (gnus-kill-buffer gnus-article-buffer)
7281 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7282 (cond
7283 ;; Kill the buffer.
7284 (gnus-kill-summary-on-exit
7285 (when (and gnus-use-trees
7286 (gnus-buffer-exists-p buffer))
c7a91ce1 7287 (with-current-buffer buffer
23f87bed
MB
7288 (gnus-tree-close gnus-newsgroup-name)))
7289 (gnus-kill-buffer buffer))
7290 ;; Deaden the buffer.
7291 ((gnus-buffer-exists-p buffer)
c7a91ce1 7292 (with-current-buffer buffer
23f87bed 7293 (gnus-deaden-summary))))))
eec82323
LMI
7294
7295(defun gnus-summary-wake-up-the-dead (&rest args)
7296 "Wake up the dead summary buffer."
7297 (interactive)
7298 (gnus-dead-summary-mode -1)
7299 (let ((name (buffer-name)))
7300 (when (string-match "Dead " name)
7301 (rename-buffer
7302 (concat (substring name 0 (match-beginning 0))
7303 (substring name (match-end 0)))
7304 t)))
7305 (gnus-message 3 "This dead summary is now alive again"))
7306
7307;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7308(defun gnus-summary-fetch-faq (&optional faq-dir)
7309 "Fetch the FAQ for the current group.
7310If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7311in."
7312 (interactive
7313 (list
7314 (when current-prefix-arg
7315 (completing-read
8f688cb0 7316 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7317 (mapcar 'list
a8151ef7 7318 gnus-group-faq-directory))))))
eec82323
LMI
7319 (let (gnus-faq-buffer)
7320 (when (setq gnus-faq-buffer
7321 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7322 (gnus-configure-windows 'summary-faq))))
7323
7324;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7325(defun gnus-summary-describe-group (&optional force)
7326 "Describe the current newsgroup."
7327 (interactive "P")
7328 (gnus-group-describe-group force gnus-newsgroup-name))
7329
7330(defun gnus-summary-describe-briefly ()
7331 "Describe summary mode commands briefly."
7332 (interactive)
16409b0b 7333 (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
7334
7335;; Walking around group mode buffer from summary mode.
7336
7337(defun gnus-summary-next-group (&optional no-article target-group backward)
7338 "Exit current newsgroup and then select next unread newsgroup.
7339If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7340initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7341previous group instead."
7342 (interactive "P")
eec82323
LMI
7343 ;; Stop pre-fetching.
7344 (gnus-async-halt-prefetch)
7345 (let ((current-group gnus-newsgroup-name)
7346 (current-buffer (current-buffer))
7347 entered)
7348 ;; First we semi-exit this group to update Xrefs and all variables.
7349 ;; We can't do a real exit, because the window conf must remain
7350 ;; the same in case the user is prompted for info, and we don't
7351 ;; want the window conf to change before that...
7352 (gnus-summary-exit t)
7353 (while (not entered)
7354 ;; Then we find what group we are supposed to enter.
7355 (set-buffer gnus-group-buffer)
7356 (gnus-group-jump-to-group current-group)
7357 (setq target-group
7358 (or target-group
7359 (if (eq gnus-keep-same-level 'best)
7360 (gnus-summary-best-group gnus-newsgroup-name)
7361 (gnus-summary-search-group backward gnus-keep-same-level))))
7362 (if (not target-group)
7363 ;; There are no further groups, so we return to the group
7364 ;; buffer.
7365 (progn
7366 (gnus-message 5 "Returning to the group buffer")
7367 (setq entered t)
7368 (when (gnus-buffer-live-p current-buffer)
7369 (set-buffer current-buffer)
7370 (gnus-summary-exit))
6748645f 7371 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7372 ;; We try to enter the target group.
7373 (gnus-group-jump-to-group target-group)
7374 (let ((unreads (gnus-group-group-unread)))
7375 (if (and (or (eq t unreads)
7376 (and unreads (not (zerop unreads))))
23f87bed
MB
7377 (gnus-summary-read-group
7378 target-group nil no-article
7379 (and (buffer-name current-buffer) current-buffer)
7380 nil backward))
eec82323
LMI
7381 (setq entered t)
7382 (setq current-group target-group
7383 target-group nil)))))))
7384
7385(defun gnus-summary-prev-group (&optional no-article)
7386 "Exit current newsgroup and then select previous unread newsgroup.
7387If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7388 (interactive "P")
7389 (gnus-summary-next-group no-article nil t))
7390
7391;; Walking around summary lines.
7392
23f87bed
MB
7393(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7394 "Go to the first subject satisfying any non-nil constraint.
7395If UNREAD is non-nil, the article should be unread.
7396If UNDOWNLOADED is non-nil, the article should be undownloaded.
7397If UNSEEN is non-nil, the article should be unseen.
7398Returns the article selected or nil if there are no matching articles."
eec82323 7399 (interactive "P")
23f87bed
MB
7400 (cond
7401 ;; Empty summary.
7402 ((null gnus-newsgroup-data)
7403 (gnus-message 3 "No articles in the group")
7404 nil)
7405 ;; Pick the first article.
7406 ((not (or unread undownloaded unseen))
7407 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7408 (gnus-data-number (car gnus-newsgroup-data)))
7409 ;; Find the first unread article.
7410 (t
7411 (let ((data gnus-newsgroup-data))
7412 (while (and data
7413 (let ((num (gnus-data-number (car data))))
7414 (or (memq num gnus-newsgroup-unfetched)
7415 (not (or (and unread
7416 (memq num gnus-newsgroup-unreads))
7417 (and undownloaded
7418 (memq num gnus-newsgroup-undownloaded))
7419 (and unseen
7420 (memq num gnus-newsgroup-unseen)))))))
7421 (setq data (cdr data)))
7422 (prog1
7423 (if data
7424 (progn
7425 (goto-char (gnus-data-pos (car data)))
7426 (gnus-data-number (car data)))
7427 (gnus-message 3 "No more%s articles"
7428 (let* ((r (when unread " unread"))
7429 (d (when undownloaded " undownloaded"))
7430 (s (when unseen " unseen"))
7431 (l (delq nil (list r d s))))
7432 (cond ((= 3 (length l))
7433 (concat r "," d ", or" s))
7434 ((= 2 (length l))
7435 (concat (car l) ", or" (cadr l)))
7436 ((= 1 (length l))
7437 (car l))
7438 (t
7439 ""))))
7440 nil
7441 )
7442 (gnus-summary-position-point))))))
eec82323
LMI
7443
7444(defun gnus-summary-next-subject (n &optional unread dont-display)
7445 "Go to next N'th summary line.
7446If N is negative, go to the previous N'th subject line.
7447If UNREAD is non-nil, only unread articles are selected.
7448The difference between N and the actual number of steps taken is
7449returned."
7450 (interactive "p")
7451 (let ((backward (< n 0))
7452 (n (abs n)))
7453 (while (and (> n 0)
7454 (if backward
7455 (gnus-summary-find-prev unread)
7456 (gnus-summary-find-next unread)))
16409b0b
GM
7457 (unless (zerop (setq n (1- n)))
7458 (gnus-summary-show-thread)))
eec82323
LMI
7459 (when (/= 0 n)
7460 (gnus-message 7 "No more%s articles"
7461 (if unread " unread" "")))
7462 (unless dont-display
7463 (gnus-summary-recenter)
7464 (gnus-summary-position-point))
7465 n))
7466
7467(defun gnus-summary-next-unread-subject (n)
7468 "Go to next N'th unread summary line."
7469 (interactive "p")
7470 (gnus-summary-next-subject n t))
7471
7472(defun gnus-summary-prev-subject (n &optional unread)
7473 "Go to previous N'th summary line.
7474If optional argument UNREAD is non-nil, only unread article is selected."
7475 (interactive "p")
7476 (gnus-summary-next-subject (- n) unread))
7477
7478(defun gnus-summary-prev-unread-subject (n)
7479 "Go to previous N'th unread summary line."
7480 (interactive "p")
7481 (gnus-summary-next-subject (- n) t))
7482
23f87bed
MB
7483(defun gnus-summary-goto-subjects (articles)
7484 "Insert the subject header for ARTICLES in the current buffer."
7485 (save-excursion
7486 (dolist (article articles)
7487 (gnus-summary-goto-subject article t)))
7488 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7489 (gnus-summary-position-point))
132cf96d 7490
eec82323 7491(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7492 "Go to the subject line of ARTICLE.
eec82323
LMI
7493If FORCE, also allow jumping to articles not currently shown."
7494 (interactive "nArticle number: ")
23f87bed
MB
7495 (unless (numberp article)
7496 (error "Article %s is not a number" article))
eec82323
LMI
7497 (let ((b (point))
7498 (data (gnus-data-find article)))
7499 ;; We read in the article if we have to.
7500 (and (not data)
7501 force
6748645f
LMI
7502 (gnus-summary-insert-subject
7503 article
7504 (if (or (numberp force) (vectorp force)) force)
7505 t)
eec82323
LMI
7506 (setq data (gnus-data-find article)))
7507 (goto-char b)
7508 (if (not data)
7509 (progn
7510 (unless silent
7511 (gnus-message 3 "Can't find article %d" article))
7512 nil)
23f87bed
MB
7513 (let ((pt (gnus-data-pos data)))
7514 (goto-char pt)
7515 (gnus-summary-set-article-display-arrow pt))
6748645f 7516 (gnus-summary-position-point)
eec82323
LMI
7517 article)))
7518
7519;; Walking around summary lines with displaying articles.
7520
7521(defun gnus-summary-expand-window (&optional arg)
7522 "Make the summary buffer take up the entire Emacs frame.
7523Given a prefix, will force an `article' buffer configuration."
7524 (interactive "P")
eec82323
LMI
7525 (if arg
7526 (gnus-configure-windows 'article 'force)
7527 (gnus-configure-windows 'summary 'force)))
7528
7529(defun gnus-summary-display-article (article &optional all-header)
7530 "Display ARTICLE in article buffer."
01c52d31
MB
7531 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7532 (with-current-buffer gnus-article-buffer
7533 (eq major-mode 'gnus-article-mode)))
7534 (gnus-article-setup-buffer))
eec82323 7535 (gnus-set-global-variables)
01c52d31
MB
7536 (with-current-buffer gnus-article-buffer
7537 (setq gnus-article-charset gnus-newsgroup-charset)
7538 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7539 (mm-enable-multibyte))
eec82323
LMI
7540 (if (null article)
7541 nil
7542 (prog1
7543 (if gnus-summary-display-article-function
7544 (funcall gnus-summary-display-article-function article all-header)
7545 (gnus-article-prepare article all-header))
6748645f 7546 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7547 (when (and gnus-current-article
7548 (not (zerop gnus-current-article)))
7549 (gnus-summary-goto-subject gnus-current-article))
7550 (gnus-summary-recenter)
7551 (when (and gnus-use-trees gnus-show-threads)
7552 (gnus-possibly-generate-tree article)
7553 (gnus-highlight-selected-tree article))
7554 ;; Successfully display article.
7555 (gnus-article-set-window-start
7556 (cdr (assq article gnus-newsgroup-bookmarks))))))
7557
7558(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7559 "Select the current article.
7560If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7561non-nil, the article will be re-fetched even if it already present in
7562the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7563be displayed."
7564 ;; Make sure we are in the summary buffer to work around bbdb bug.
7565 (unless (eq major-mode 'gnus-summary-mode)
7566 (set-buffer gnus-summary-buffer))
7567 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7568 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7569 gnus-summary-display-article-function)
eec82323
LMI
7570 (and (not pseudo)
7571 (gnus-summary-article-pseudo-p article)
a8151ef7 7572 (error "This is a pseudo-article"))
c7a91ce1 7573 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7574 (if (or (and gnus-single-article-buffer
7575 (or (null gnus-current-article)
7576 (null gnus-article-current)
7577 (null (get-buffer gnus-article-buffer))
7578 (not (eq article (cdr gnus-article-current)))
7579 (not (equal (car gnus-article-current)
7580 gnus-newsgroup-name))))
7581 (and (not gnus-single-article-buffer)
7582 (or (null gnus-current-article)
7583 (not (eq gnus-current-article article))))
7584 force)
7585 ;; The requested article is different from the current article.
7586 (progn
16409b0b
GM
7587 (gnus-summary-display-article article all-headers)
7588 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7589 (with-current-buffer gnus-article-buffer
16409b0b 7590 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7591 (mm-disable-multibyte))))
16409b0b
GM
7592 (gnus-article-set-window-start
7593 (cdr (assq article gnus-newsgroup-bookmarks)))
7594 article)
16409b0b 7595 'old))))
eec82323 7596
23f87bed
MB
7597(defun gnus-summary-force-verify-and-decrypt ()
7598 "Display buttons for signed/encrypted parts and verify/decrypt them."
7599 (interactive)
7600 (let ((mm-verify-option 'known)
7601 (mm-decrypt-option 'known)
7602 (gnus-article-emulate-mime t)
7603 (gnus-buttonized-mime-types (append (list "multipart/signed"
7604 "multipart/encrypted")
7605 gnus-buttonized-mime-types)))
7606 (gnus-summary-select-article nil 'force)))
7607
eec82323
LMI
7608(defun gnus-summary-set-current-mark (&optional current-mark)
7609 "Obsolete function."
7610 nil)
7611
7612(defun gnus-summary-next-article (&optional unread subject backward push)
7613 "Select the next article.
7614If UNREAD, only unread articles are selected.
7615If SUBJECT, only articles with SUBJECT are selected.
7616If BACKWARD, the previous article is selected instead of the next."
7617 (interactive "P")
11e95b02
MB
7618 ;; Make sure we are in the summary buffer.
7619 (unless (eq major-mode 'gnus-summary-mode)
7620 (set-buffer gnus-summary-buffer))
eec82323
LMI
7621 (cond
7622 ;; Is there such an article?
7623 ((and (gnus-summary-search-forward unread subject backward)
7624 (or (gnus-summary-display-article (gnus-summary-article-number))
7625 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7626 (gnus-summary-position-point))
7627 ;; If not, we try the first unread, if that is wanted.
7628 ((and subject
7629 gnus-auto-select-same
7630 (gnus-summary-first-unread-article))
7631 (gnus-summary-position-point)
7632 (gnus-message 6 "Wrapped"))
7633 ;; Try to get next/previous article not displayed in this group.
7634 ((and gnus-auto-extend-newsgroup
7635 (not unread) (not subject))
7636 (gnus-summary-goto-article
7637 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7638 nil (count-lines (point-min) (point))))
eec82323
LMI
7639 ;; Go to next/previous group.
7640 (t
7641 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7642 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7643 (let ((cmd (if (featurep 'xemacs)
7644 last-command-char
7645 last-command-event))
eec82323 7646 (point
01c52d31 7647 (with-current-buffer gnus-group-buffer
eec82323
LMI
7648 (point)))
7649 (group
7650 (if (eq gnus-keep-same-level 'best)
7651 (gnus-summary-best-group gnus-newsgroup-name)
7652 (gnus-summary-search-group backward gnus-keep-same-level))))
7653 ;; For some reason, the group window gets selected. We change
7654 ;; it back.
7655 (select-window (get-buffer-window (current-buffer)))
7656 ;; Select next unread newsgroup automagically.
7657 (cond
7658 ((or (not gnus-auto-select-next)
7659 (not cmd))
7660 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7661 ((or (eq gnus-auto-select-next 'quietly)
7662 (and (eq gnus-auto-select-next 'slightly-quietly)
7663 push)
7664 (and (eq gnus-auto-select-next 'almost-quietly)
7665 (gnus-summary-last-article-p)))
7666 ;; Select quietly.
7667 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7668 (gnus-summary-exit)
7669 (gnus-message 7 "No more%s articles (%s)..."
7670 (if unread " unread" "")
7671 (if group (concat "selecting " group)
7672 "exiting"))
7673 (gnus-summary-next-group nil group backward)))
7674 (t
7675 (when (gnus-key-press-event-p last-input-event)
7676 (gnus-summary-walk-group-buffer
7677 gnus-newsgroup-name cmd unread backward point))))))))
7678
7679(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7680 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7681 (?\C-p (gnus-group-prev-unread-group 1))))
7682 (cursor-in-echo-area t)
23f87bed 7683 keve key group ended prompt)
c7a91ce1 7684 (with-current-buffer gnus-group-buffer
eec82323
LMI
7685 (goto-char start)
7686 (setq group
7687 (if (eq gnus-keep-same-level 'best)
7688 (gnus-summary-best-group gnus-newsgroup-name)
7689 (gnus-summary-search-group backward gnus-keep-same-level))))
7690 (while (not ended)
23f87bed
MB
7691 (setq prompt
7692 (format
7693 "No more%s articles%s " (if unread " unread" "")
7694 (if (and group
7695 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7696 (format " (Type %s for %s [%s])"
91472578
MB
7697 (single-key-description cmd)
7698 (gnus-group-decoded-name group)
01c52d31 7699 (gnus-group-unread group))
23f87bed
MB
7700 (format " (Type %s to exit %s)"
7701 (single-key-description cmd)
91472578 7702 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7703 ;; Confirm auto selection.
23f87bed
MB
7704 (setq key (car (setq keve (gnus-read-event-char prompt)))
7705 ended t)
eec82323
LMI
7706 (cond
7707 ((assq key keystrokes)
7708 (let ((obuf (current-buffer)))
7709 (switch-to-buffer gnus-group-buffer)
7710 (when group
7711 (gnus-group-jump-to-group group))
7712 (eval (cadr (assq key keystrokes)))
7713 (setq group (gnus-group-group-name))
7714 (switch-to-buffer obuf))
7715 (setq ended nil))
7716 ((equal key cmd)
7717 (if (or (not group)
7718 (gnus-ephemeral-group-p gnus-newsgroup-name))
7719 (gnus-summary-exit)
7720 (gnus-summary-next-group nil group backward)))
7721 (t
7722 (push (cdr keve) unread-command-events))))))
7723
7724(defun gnus-summary-next-unread-article ()
7725 "Select unread article after current one."
7726 (interactive)
7727 (gnus-summary-next-article
7728 (or (not (eq gnus-summary-goto-unread 'never))
7729 (gnus-summary-last-article-p (gnus-summary-article-number)))
7730 (and gnus-auto-select-same
7731 (gnus-summary-article-subject))))
7732
7733(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7734 "Select the article before the current one.
eec82323
LMI
7735If UNREAD is non-nil, only unread articles are selected."
7736 (interactive "P")
7737 (gnus-summary-next-article unread subject t))
7738
7739(defun gnus-summary-prev-unread-article ()
7740 "Select unread article before current one."
7741 (interactive)
7742 (gnus-summary-prev-article
7743 (or (not (eq gnus-summary-goto-unread 'never))
7744 (gnus-summary-first-article-p (gnus-summary-article-number)))
7745 (and gnus-auto-select-same
7746 (gnus-summary-article-subject))))
7747
23f87bed 7748(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7749 "Show next page of the selected article.
7750If at the end of the current article, select the next article.
7751LINES says how many lines should be scrolled up.
7752
7753If CIRCULAR is non-nil, go to the start of the article instead of
7754selecting the next article when reaching the end of the current
23f87bed
MB
7755article.
7756
7757If STOP is non-nil, just stop when reaching the end of the message.
7758
7759Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7760 (interactive "P")
7761 (setq gnus-summary-buffer (current-buffer))
7762 (gnus-set-global-variables)
7763 (let ((article (gnus-summary-article-number))
7764 (article-window (get-buffer-window gnus-article-buffer t))
7765 endp)
6748645f
LMI
7766 ;; If the buffer is empty, we have no article.
7767 (unless article
7768 (error "No article to select"))
eec82323
LMI
7769 (gnus-configure-windows 'article)
7770 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7771 (if (and (eq gnus-summary-goto-unread 'never)
7772 (not (gnus-summary-last-article-p article)))
7773 (gnus-summary-next-article)
7774 (gnus-summary-next-unread-article))
7775 (if (or (null gnus-current-article)
7776 (null gnus-article-current)
7777 (/= article (cdr gnus-article-current))
7778 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7779 ;; Selected subject is different from current article's.
7780 (gnus-summary-display-article article)
7781 (when article-window
7782 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7783 (setq endp (or (gnus-article-next-page lines)
7784 (gnus-article-only-boring-p))))
eec82323 7785 (when endp
b1992461 7786 (cond ((or stop gnus-summary-stop-at-end-of-message)
23f87bed
MB
7787 (gnus-message 3 "End of message"))
7788 (circular
eec82323
LMI
7789 (gnus-summary-beginning-of-article))
7790 (lines
7791 (gnus-message 3 "End of message"))
7792 ((null lines)
7793 (if (and (eq gnus-summary-goto-unread 'never)
7794 (not (gnus-summary-last-article-p article)))
7795 (gnus-summary-next-article)
7796 (gnus-summary-next-unread-article))))))))
7797 (gnus-summary-recenter)
7798 (gnus-summary-position-point)))
7799
7800(defun gnus-summary-prev-page (&optional lines move)
7801 "Show previous page of selected article.
7802Argument LINES specifies lines to be scrolled down.
7803If MOVE, move to the previous unread article if point is at
7804the beginning of the buffer."
7805 (interactive "P")
eec82323
LMI
7806 (let ((article (gnus-summary-article-number))
7807 (article-window (get-buffer-window gnus-article-buffer t))
7808 endp)
7809 (gnus-configure-windows 'article)
7810 (if (or (null gnus-current-article)
7811 (null gnus-article-current)
7812 (/= article (cdr gnus-article-current))
7813 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7814 ;; Selected subject is different from current article's.
7815 (gnus-summary-display-article article)
7816 (gnus-summary-recenter)
7817 (when article-window
7818 (gnus-eval-in-buffer-window gnus-article-buffer
7819 (setq endp (gnus-article-prev-page lines)))
7820 (when (and move endp)
7821 (cond (lines
7822 (gnus-message 3 "Beginning of message"))
7823 ((null lines)
7824 (if (and (eq gnus-summary-goto-unread 'never)
7825 (not (gnus-summary-first-article-p article)))
7826 (gnus-summary-prev-article)
7827 (gnus-summary-prev-unread-article))))))))
7828 (gnus-summary-position-point))
7829
7830(defun gnus-summary-prev-page-or-article (&optional lines)
7831 "Show previous page of selected article.
7832Argument LINES specifies lines to be scrolled down.
7833If at the beginning of the article, go to the next article."
7834 (interactive "P")
7835 (gnus-summary-prev-page lines t))
7836
7837(defun gnus-summary-scroll-up (lines)
7838 "Scroll up (or down) one line current article.
7839Argument LINES specifies lines to be scrolled up (or down if negative)."
7840 (interactive "p")
eec82323
LMI
7841 (gnus-configure-windows 'article)
7842 (gnus-summary-show-thread)
7843 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7844 (gnus-eval-in-buffer-window gnus-article-buffer
7845 (cond ((> lines 0)
7846 (when (gnus-article-next-page lines)
7847 (gnus-message 3 "End of message")))
7848 ((< lines 0)
7849 (gnus-article-prev-page (- lines))))))
7850 (gnus-summary-recenter)
7851 (gnus-summary-position-point))
7852
6748645f
LMI
7853(defun gnus-summary-scroll-down (lines)
7854 "Scroll down (or up) one line current article.
7855Argument LINES specifies lines to be scrolled down (or up if negative)."
7856 (interactive "p")
7857 (gnus-summary-scroll-up (- lines)))
7858
eec82323
LMI
7859(defun gnus-summary-next-same-subject ()
7860 "Select next article which has the same subject as current one."
7861 (interactive)
eec82323
LMI
7862 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7863
7864(defun gnus-summary-prev-same-subject ()
7865 "Select previous article which has the same subject as current one."
7866 (interactive)
eec82323
LMI
7867 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7868
7869(defun gnus-summary-next-unread-same-subject ()
7870 "Select next unread article which has the same subject as current one."
7871 (interactive)
eec82323
LMI
7872 (gnus-summary-next-article t (gnus-summary-article-subject)))
7873
7874(defun gnus-summary-prev-unread-same-subject ()
7875 "Select previous unread article which has the same subject as current one."
7876 (interactive)
eec82323
LMI
7877 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7878
7879(defun gnus-summary-first-unread-article ()
7880 "Select the first unread article.
7881Return nil if there are no unread articles."
7882 (interactive)
eec82323
LMI
7883 (prog1
7884 (when (gnus-summary-first-subject t)
7885 (gnus-summary-show-thread)
7886 (gnus-summary-first-subject t)
7887 (gnus-summary-display-article (gnus-summary-article-number)))
7888 (gnus-summary-position-point)))
7889
16409b0b
GM
7890(defun gnus-summary-first-unread-subject ()
7891 "Place the point on the subject line of the first unread article.
7892Return nil if there are no unread articles."
7893 (interactive)
7894 (prog1
7895 (when (gnus-summary-first-subject t)
7896 (gnus-summary-show-thread)
7897 (gnus-summary-first-subject t))
7898 (gnus-summary-position-point)))
7899
23f87bed
MB
7900(defun gnus-summary-first-unseen-subject ()
7901 "Place the point on the subject line of the first unseen article.
7902Return nil if there are no unseen articles."
7903 (interactive)
7904 (prog1
7905 (when (gnus-summary-first-subject nil nil t)
7906 (gnus-summary-show-thread)
7907 (gnus-summary-first-subject nil nil t))
7908 (gnus-summary-position-point)))
7909
7910(defun gnus-summary-first-unseen-or-unread-subject ()
7911 "Place the point on the subject line of the first unseen article or,
7912if all article have been seen, on the subject line of the first unread
7913article."
7914 (interactive)
7915 (prog1
7916 (unless (when (gnus-summary-first-subject nil nil t)
7917 (gnus-summary-show-thread)
7918 (gnus-summary-first-subject nil nil t))
7919 (when (gnus-summary-first-subject t)
7920 (gnus-summary-show-thread)
7921 (gnus-summary-first-subject t)))
7922 (gnus-summary-position-point)))
7923
eec82323
LMI
7924(defun gnus-summary-first-article ()
7925 "Select the first article.
7926Return nil if there are no articles."
7927 (interactive)
eec82323
LMI
7928 (prog1
7929 (when (gnus-summary-first-subject)
16409b0b
GM
7930 (gnus-summary-show-thread)
7931 (gnus-summary-first-subject)
7932 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7933 (gnus-summary-position-point)))
7934
23f87bed
MB
7935(defun gnus-summary-best-unread-article (&optional arg)
7936 "Select the unread article with the highest score.
7937If given a prefix argument, select the next unread article that has a
7938score higher than the default score."
7939 (interactive "P")
7940 (let ((article (if arg
7941 (gnus-summary-better-unread-subject)
7942 (gnus-summary-best-unread-subject))))
7943 (if article
7944 (gnus-summary-goto-article article)
7945 (error "No unread articles"))))
7946
7947(defun gnus-summary-best-unread-subject ()
7948 "Select the unread subject with the highest score."
eec82323 7949 (interactive)
eec82323
LMI
7950 (let ((best -1000000)
7951 (data gnus-newsgroup-data)
7952 article score)
7953 (while data
7954 (and (gnus-data-unread-p (car data))
7955 (> (setq score
7956 (gnus-summary-article-score (gnus-data-number (car data))))
7957 best)
7958 (setq best score
7959 article (gnus-data-number (car data))))
7960 (setq data (cdr data)))
23f87bed
MB
7961 (when article
7962 (gnus-summary-goto-subject article))
7963 (gnus-summary-position-point)
7964 article))
7965
7966(defun gnus-summary-better-unread-subject ()
7967 "Select the first unread subject that has a score over the default score."
7968 (interactive)
7969 (let ((data gnus-newsgroup-data)
7970 article score)
7971 (while (and (setq article (gnus-data-number (car data)))
7972 (or (gnus-data-read-p (car data))
7973 (not (> (gnus-summary-article-score article)
7974 gnus-summary-default-score))))
7975 (setq data (cdr data)))
7976 (when article
7977 (gnus-summary-goto-subject article))
7978 (gnus-summary-position-point)
7979 article))
eec82323
LMI
7980
7981(defun gnus-summary-last-subject ()
7982 "Go to the last displayed subject line in the group."
7983 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7984 (when article
7985 (gnus-summary-goto-subject article))))
7986
7987(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7988 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7989If ALL-HEADERS is non-nil, no header lines are hidden.
7990If FORCE, go to the article even if it isn't displayed. If FORCE
7991is a number, it is the line the article is to be displayed on."
eec82323
LMI
7992 (interactive
7993 (list
6748645f
LMI
7994 (completing-read
7995 "Article number or Message-ID: "
7996 (mapcar (lambda (number) (list (int-to-string number)))
7997 gnus-newsgroup-limit))
eec82323
LMI
7998 current-prefix-arg
7999 t))
8000 (prog1
6748645f 8001 (if (and (stringp article)
23f87bed 8002 (string-match "@\\|%40" article))
6748645f
LMI
8003 (gnus-summary-refer-article article)
8004 (when (stringp article)
8005 (setq article (string-to-number article)))
8006 (if (gnus-summary-goto-subject article force)
8007 (gnus-summary-display-article article all-headers)
8008 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
8009 (gnus-summary-position-point)))
8010
8011(defun gnus-summary-goto-last-article ()
8012 "Go to the previously read article."
8013 (interactive)
8014 (prog1
8015 (when gnus-last-article
6748645f 8016 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8017 (gnus-summary-position-point)))
8018
8019(defun gnus-summary-pop-article (number)
8020 "Pop one article off the history and go to the previous.
8021NUMBER articles will be popped off."
8022 (interactive "p")
8023 (let (to)
8024 (setq gnus-newsgroup-history
8025 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8026 (if to
6748645f 8027 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8028 (error "Article history empty")))
8029 (gnus-summary-position-point))
8030
8031;; Summary commands and functions for limiting the summary buffer.
8032
8033(defun gnus-summary-limit-to-articles (n)
8034 "Limit the summary buffer to the next N articles.
8035If not given a prefix, use the process marked articles instead."
8036 (interactive "P")
eec82323
LMI
8037 (prog1
8038 (let ((articles (gnus-summary-work-articles n)))
8039 (setq gnus-newsgroup-processable nil)
8040 (gnus-summary-limit articles))
8041 (gnus-summary-position-point)))
8042
8043(defun gnus-summary-pop-limit (&optional total)
8044 "Restore the previous limit.
8045If given a prefix, remove all limits."
8046 (interactive "P")
eec82323
LMI
8047 (when total
8048 (setq gnus-newsgroup-limits
8049 (list (mapcar (lambda (h) (mail-header-number h))
8050 gnus-newsgroup-headers))))
8051 (unless gnus-newsgroup-limits
8052 (error "No limit to pop"))
8053 (prog1
8054 (gnus-summary-limit nil 'pop)
8055 (gnus-summary-position-point)))
8056
47b63dfa
SZ
8057(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8058 "Limit the summary buffer to articles that have subjects that match a regexp.
8059If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8060 (interactive
47b63dfa
SZ
8061 (list (read-string (if current-prefix-arg
8062 "Exclude subject (regexp): "
a1506d29 8063 "Limit to subject (regexp): "))
47b63dfa 8064 nil current-prefix-arg))
eec82323
LMI
8065 (unless header
8066 (setq header "subject"))
8067 (when (not (equal "" subject))
8068 (prog1
8069 (let ((articles (gnus-summary-find-matching
a1506d29 8070 (or header "subject") subject 'all nil nil
47b63dfa 8071 not-matching)))
eec82323
LMI
8072 (unless articles
8073 (error "Found no matches for \"%s\"" subject))
8074 (gnus-summary-limit articles))
8075 (gnus-summary-position-point))))
8076
ef6e0ec7 8077(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8078 "Limit the summary buffer to articles that have authors that match a regexp.
8079If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8080 (interactive
47b63dfa
SZ
8081 (list (read-string (if current-prefix-arg
8082 "Exclude author (regexp): "
a1506d29 8083 "Limit to author (regexp): "))
ef6e0ec7
SZ
8084 current-prefix-arg))
8085 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8086
01c52d31
MB
8087(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8088 "Limit the summary buffer to articles with the given RECIPIENT.
8089
8090If NOT-MATCHING, exclude RECIPIENT.
8091
8092To and Cc headers are checked. You need to include them in
8093`nnmail-extra-headers'."
8094 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8095 (interactive
8096 (list (read-string (format "%s recipient (regexp): "
8097 (if current-prefix-arg "Exclude" "Limit to")))
8098 current-prefix-arg))
8099 (when (not (equal "" recipient))
8100 (prog1 (let* ((to
8101 (if (memq 'To nnmail-extra-headers)
8102 (gnus-summary-find-matching
8103 (cons 'extra 'To) recipient 'all nil nil
8104 not-matching)
8105 (gnus-message
8106 1 "`To' isn't present in `nnmail-extra-headers'")
8107 (sit-for 1)
8108 nil))
8109 (cc
8110 (if (memq 'Cc nnmail-extra-headers)
8111 (gnus-summary-find-matching
8112 (cons 'extra 'Cc) recipient 'all nil nil
8113 not-matching)
8114 (gnus-message
8115 1 "`Cc' isn't present in `nnmail-extra-headers'")
8116 (sit-for 1)
8117 nil))
8118 (articles
8119 (if not-matching
8120 ;; We need the numbers that are in both lists:
8121 (mapcar (lambda (a)
8122 (and (memq a to) a))
8123 cc)
8124 (nconc to cc))))
8125 (unless articles
8126 (error "Found no matches for \"%s\"" recipient))
8127 (gnus-summary-limit articles))
8128 (gnus-summary-position-point))))
8129
8130(defun gnus-summary-limit-to-address (address &optional not-matching)
8131 "Limit the summary buffer to articles with the given ADDRESS.
8132
8133If NOT-MATCHING, exclude ADDRESS.
8134
8135To, Cc and From headers are checked. You need to include `To' and `Cc'
8136in `nnmail-extra-headers'."
8137 (interactive
8138 (list (read-string (format "%s address (regexp): "
8139 (if current-prefix-arg "Exclude" "Limit to")))
8140 current-prefix-arg))
8141 (when (not (equal "" address))
8142 (prog1 (let* ((to
8143 (if (memq 'To nnmail-extra-headers)
8144 (gnus-summary-find-matching
8145 (cons 'extra 'To) address 'all nil nil
8146 not-matching)
8147 (gnus-message
8148 1 "`To' isn't present in `nnmail-extra-headers'")
8149 (sit-for 1)
8150 t))
8151 (cc
8152 (if (memq 'Cc nnmail-extra-headers)
8153 (gnus-summary-find-matching
8154 (cons 'extra 'Cc) address 'all nil nil
8155 not-matching)
8156 (gnus-message
8157 1 "`Cc' isn't present in `nnmail-extra-headers'")
8158 (sit-for 1)
8159 t))
8160 (from
8161 (gnus-summary-find-matching "from" address
8162 'all nil nil not-matching))
8163 (articles
8164 (if not-matching
8165 ;; We need the numbers that are in all lists:
8166 (if (eq cc t)
8167 (if (eq to t)
8168 from
8169 (mapcar (lambda (a) (car (memq a from))) to))
8170 (if (eq to t)
8171 (mapcar (lambda (a) (car (memq a from))) cc)
8172 (mapcar (lambda (a) (car (memq a from)))
8173 (mapcar (lambda (a) (car (memq a to)))
8174 cc))))
8175 (nconc (if (eq to t) nil to)
8176 (if (eq cc t) nil cc)
8177 from))))
8178 (unless articles
8179 (error "Found no matches for \"%s\"" address))
8180 (gnus-summary-limit articles))
8181 (gnus-summary-position-point))))
8182
8183(defun gnus-summary-limit-strange-charsets-predicate (header)
765d4319
KY
8184 (when (fboundp 'char-charset)
8185 (let ((string (concat (mail-header-subject header)
8186 (mail-header-from header)))
8187 charset found)
8188 (dotimes (i (1- (length string)))
8189 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8190 (when (string-match "unicode\\|big\\|japanese" charset)
8191 (setq found t)))
8192 found)))
01c52d31
MB
8193
8194(defun gnus-summary-limit-to-predicate (predicate)
8195 "Limit to articles where PREDICATE returns non-nil.
8196PREDICATE will be called with the header structures of the
8197articles."
8198 (let ((articles nil)
8199 (case-fold-search t))
8200 (dolist (header gnus-newsgroup-headers)
8201 (when (funcall predicate header)
8202 (push (mail-header-number header) articles)))
8203 (gnus-summary-limit (nreverse articles))))
8204
eec82323
LMI
8205(defun gnus-summary-limit-to-age (age &optional younger-p)
8206 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8207If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8208articles that are younger than AGE days."
16409b0b
GM
8209 (interactive
8210 (let ((younger current-prefix-arg)
8211 (days-got nil)
8212 days)
8213 (while (not days-got)
8214 (setq days (if younger
23f87bed
MB
8215 (read-string "Limit to articles younger than (in days, older when negative): ")
8216 (read-string
8217 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8218 (when (> (length days) 0)
8219 (setq days (read days)))
8220 (if (numberp days)
23f87bed
MB
8221 (progn
8222 (setq days-got t)
01c52d31
MB
8223 (when (< days 0)
8224 (setq younger (not younger))
8225 (setq days (* days -1))))
16409b0b
GM
8226 (message "Please enter a number.")
8227 (sleep-for 1)))
8228 (list days younger)))
eec82323
LMI
8229 (prog1
8230 (let ((data gnus-newsgroup-data)
16409b0b 8231 (cutoff (days-to-time age))
eec82323
LMI
8232 articles d date is-younger)
8233 (while (setq d (pop data))
8234 (when (and (vectorp (gnus-data-header d))
8235 (setq date (mail-header-date (gnus-data-header d))))
16409b0b 8236 (setq is-younger (time-less-p
3d6e7a43 8237 (time-since (gnus-date-get-time date))
eec82323 8238 cutoff))
6748645f
LMI
8239 (when (if younger-p
8240 is-younger
8241 (not is-younger))
eec82323
LMI
8242 (push (gnus-data-number d) articles))))
8243 (gnus-summary-limit (nreverse articles)))
8244 (gnus-summary-position-point)))
8245
47b63dfa 8246(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8247 "Limit the summary buffer to articles that match an 'extra' header."
8248 (interactive
8249 (let ((header
8250 (intern
23f87bed 8251 (gnus-completing-read-with-default
16409b0b 8252 (symbol-name (car gnus-extra-headers))
47b63dfa 8253 (if current-prefix-arg
81df110a
RF
8254 "Exclude extra header"
8255 "Limit extra header")
16409b0b
GM
8256 (mapcar (lambda (x)
8257 (cons (symbol-name x) x))
8258 gnus-extra-headers)
8259 nil
8260 t))))
8261 (list header
a1506d29 8262 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8263 (if current-prefix-arg "Exclude" "Limit to")
8264 header))
8265 current-prefix-arg)))
16409b0b
GM
8266 (when (not (equal "" regexp))
8267 (prog1
8268 (let ((articles (gnus-summary-find-matching
a1506d29 8269 (cons 'extra header) regexp 'all nil nil
47b63dfa 8270 not-matching)))
16409b0b
GM
8271 (unless articles
8272 (error "Found no matches for \"%s\"" regexp))
8273 (gnus-summary-limit articles))
8274 (gnus-summary-position-point))))
8275
23f87bed
MB
8276(defun gnus-summary-limit-to-display-predicate ()
8277 "Limit the summary buffer to the predicated in the `display' group parameter."
8278 (interactive)
8279 (unless gnus-newsgroup-display
8280 (error "There is no `display' group parameter"))
8281 (let (articles)
8282 (dolist (number gnus-newsgroup-articles)
8283 (when (funcall gnus-newsgroup-display)
8284 (push number articles)))
8285 (gnus-summary-limit articles))
8286 (gnus-summary-position-point))
8287
eec82323
LMI
8288(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8289(make-obsolete
265ac10b 8290 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread "Emacs 20.4")
eec82323
LMI
8291
8292(defun gnus-summary-limit-to-unread (&optional all)
8293 "Limit the summary buffer to articles that are not marked as read.
8294If ALL is non-nil, limit strictly to unread articles."
8295 (interactive "P")
8296 (if all
8297 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8298 (gnus-summary-limit-to-marks
8299 ;; Concat all the marks that say that an article is read and have
8300 ;; those removed.
8301 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8302 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8303 gnus-low-score-mark gnus-expirable-mark
8304 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
c4d82de8 8305 gnus-duplicate-mark)
eec82323
LMI
8306 'reverse)))
8307
01c52d31
MB
8308(defun gnus-summary-limit-to-headers (match &optional reverse)
8309 "Limit the summary buffer to articles that have headers that match MATCH.
8310If REVERSE (the prefix), limit to articles that don't match."
8311 (interactive "sMatch headers (regexp): \nP")
8312 (gnus-summary-limit-to-bodies match reverse t))
8313
8314(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8315 "Limit the summary buffer to articles that have bodies that match MATCH.
8316If REVERSE (the prefix), limit to articles that don't match."
8317 (interactive "sMatch body (regexp): \nP")
8318 (let ((articles nil)
8319 (gnus-select-article-hook nil) ;Disable hook.
8320 (gnus-article-prepare-hook nil)
8321 (gnus-use-article-prefetch nil)
8322 (gnus-keep-backlog nil)
8323 (gnus-break-pages nil)
8324 (gnus-summary-display-arrow nil)
8325 (gnus-updated-mode-lines nil)
8326 (gnus-auto-center-summary nil)
8327 (gnus-display-mime-function nil))
8328 (dolist (data gnus-newsgroup-data)
8329 (let (gnus-mark-article-hook)
8330 (gnus-summary-select-article t t nil (gnus-data-number data)))
398a825b 8331 (with-current-buffer gnus-article-buffer
01c52d31
MB
8332 (article-goto-body)
8333 (let* ((case-fold-search t)
8334 (found (if headersp
8335 (re-search-backward match nil t)
8336 (re-search-forward match nil t))))
8337 (when (or (and found
8338 (not reverse))
8339 (and (not found)
8340 reverse))
8341 (push (gnus-data-number data) articles)))))
8342 (if (not articles)
8343 (message "No messages matched")
8344 (gnus-summary-limit articles)))
8345 (gnus-summary-position-point))
8346
8347(defun gnus-summary-limit-to-singletons (&optional threadsp)
8348 "Limit the summary buffer to articles that aren't part on any thread.
8349If THREADSP (the prefix), limit to articles that are in threads."
8350 (interactive "P")
8351 (let ((articles nil)
8352 thread-articles
8353 threads)
8354 (dolist (thread gnus-newsgroup-threads)
8355 (if (stringp (car thread))
8356 (dolist (thread (cdr thread))
8357 (push thread threads))
8358 (push thread threads)))
8359 (dolist (thread threads)
8360 (setq thread-articles (gnus-articles-in-thread thread))
8361 (when (or (and threadsp
8362 (> (length thread-articles) 1))
8363 (and (not threadsp)
8364 (= (length thread-articles) 1)))
8365 (setq articles (nconc thread-articles articles))))
8366 (if (not articles)
8367 (message "No messages matched")
8368 (gnus-summary-limit articles))
8369 (gnus-summary-position-point)))
8370
8371(defun gnus-summary-limit-to-replied (&optional unreplied)
8372 "Limit the summary buffer to replied articles.
8373If UNREPLIED (the prefix), limit to unreplied articles."
8374 (interactive "P")
8375 (if unreplied
8376 (gnus-summary-limit
8377 (gnus-set-difference gnus-newsgroup-articles
8378 gnus-newsgroup-replied))
8379 (gnus-summary-limit gnus-newsgroup-replied))
8380 (gnus-summary-position-point))
8381
eec82323
LMI
8382(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8383(make-obsolete 'gnus-summary-delete-marked-with
265ac10b 8384 'gnus-summary-limit-exclude-marks "Emacs 20.4")
eec82323
LMI
8385
8386(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8387 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8388If REVERSE, limit the summary buffer to articles that are marked
8389with MARKS. MARKS can either be a string of marks or a list of marks.
8390Returns how many articles were removed."
8391 (interactive "sMarks: ")
8392 (gnus-summary-limit-to-marks marks t))
8393
8394(defun gnus-summary-limit-to-marks (marks &optional reverse)
8395 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8396If REVERSE (the prefix), limit the summary buffer to articles that are
8397not marked with MARKS. MARKS can either be a string of marks or a
8398list of marks.
8399Returns how many articles were removed."
6748645f 8400 (interactive "sMarks: \nP")
eec82323
LMI
8401 (prog1
8402 (let ((data gnus-newsgroup-data)
8403 (marks (if (listp marks) marks
8404 (append marks nil))) ; Transform to list.
8405 articles)
8406 (while data
8407 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8408 (memq (gnus-data-mark (car data)) marks))
8409 (push (gnus-data-number (car data)) articles))
8410 (setq data (cdr data)))
8411 (gnus-summary-limit articles))
8412 (gnus-summary-position-point)))
8413
23f87bed 8414(defun gnus-summary-limit-to-score (score)
eec82323 8415 "Limit to articles with score at or above SCORE."
23f87bed 8416 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8417 (let ((data gnus-newsgroup-data)
8418 articles)
8419 (while data
8420 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8421 score)
8422 (push (gnus-data-number (car data)) articles))
8423 (setq data (cdr data)))
8424 (prog1
8425 (gnus-summary-limit articles)
8426 (gnus-summary-position-point))))
8427
23f87bed
MB
8428(defun gnus-summary-limit-to-unseen ()
8429 "Limit to unseen articles."
8430 (interactive)
8431 (prog1
8432 (gnus-summary-limit gnus-newsgroup-unseen)
8433 (gnus-summary-position-point)))
8434
6748645f 8435(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8436 "Display all the hidden articles that is in the thread with ID in it.
8437When called interactively, ID is the Message-ID of the current
8438article."
6748645f
LMI
8439 (interactive (list (mail-header-id (gnus-summary-article-header))))
8440 (let ((articles (gnus-articles-in-thread
8441 (gnus-id-to-thread (gnus-root-id id)))))
8442 (prog1
8443 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8444 (gnus-summary-limit-include-matching-articles
8445 "subject"
8446 (regexp-quote (gnus-simplify-subject-re
8447 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8448 (gnus-summary-position-point))))
8449
23f87bed
MB
8450(defun gnus-summary-limit-include-matching-articles (header regexp)
8451 "Display all the hidden articles that have HEADERs that match REGEXP."
8452 (interactive (list (read-string "Match on header: ")
8453 (read-string "Regexp: ")))
8454 (let ((articles (gnus-find-matching-articles header regexp)))
8455 (prog1
8456 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8457 (gnus-summary-position-point))))
8458
8459(defun gnus-summary-insert-dormant-articles ()
8460 "Insert all the dormant articles for this group into the current buffer."
8461 (interactive)
8462 (let ((gnus-verbose (max 6 gnus-verbose)))
8463 (if (not gnus-newsgroup-dormant)
db629244 8464 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8465 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8466
01c52d31
MB
8467(defun gnus-summary-insert-ticked-articles ()
8468 "Insert ticked articles for this group into the current buffer."
8469 (interactive)
8470 (let ((gnus-verbose (max 6 gnus-verbose)))
8471 (if (not gnus-newsgroup-marked)
8472 (gnus-message 3 "No ticked articles for this group")
8473 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8474
eec82323 8475(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8476 "Display all the hidden articles that are marked as dormant.
8477Note that this command only works on a subset of the articles currently
8478fetched for this group."
eec82323 8479 (interactive)
eec82323
LMI
8480 (unless gnus-newsgroup-dormant
8481 (error "There are no dormant articles in this group"))
8482 (prog1
8483 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8484 (gnus-summary-position-point)))
8485
8486(defun gnus-summary-limit-exclude-dormant ()
8487 "Hide all dormant articles."
8488 (interactive)
eec82323
LMI
8489 (prog1
8490 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8491 (gnus-summary-position-point)))
8492
8493(defun gnus-summary-limit-exclude-childless-dormant ()
8494 "Hide all dormant articles that have no children."
8495 (interactive)
eec82323
LMI
8496 (let ((data (gnus-data-list t))
8497 articles d children)
8498 ;; Find all articles that are either not dormant or have
8499 ;; children.
8500 (while (setq d (pop data))
8501 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8502 (and (setq children
8503 (gnus-article-children (gnus-data-number d)))
8504 (let (found)
8505 (while children
8506 (when (memq (car children) articles)
8507 (setq children nil
8508 found t))
8509 (pop children))
8510 found)))
8511 (push (gnus-data-number d) articles)))
8512 ;; Do the limiting.
8513 (prog1
8514 (gnus-summary-limit articles)
8515 (gnus-summary-position-point))))
8516
8517(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8518 "Mark all unread excluded articles as read.
8519If ALL, mark even excluded ticked and dormants as read."
8520 (interactive "P")
23f87bed
MB
8521 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8522 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8523 (sort
8524 (mapcar (lambda (h) (mail-header-number h))
8525 gnus-newsgroup-headers)
8526 '<)
23f87bed 8527 gnus-newsgroup-limit))
eec82323 8528 article)
6748645f 8529 (setq gnus-newsgroup-unreads
23f87bed
MB
8530 (gnus-sorted-intersection gnus-newsgroup-unreads
8531 gnus-newsgroup-limit))
eec82323
LMI
8532 (if all
8533 (setq gnus-newsgroup-dormant nil
8534 gnus-newsgroup-marked nil
8535 gnus-newsgroup-reads
8536 (nconc
8537 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8538 gnus-newsgroup-reads))
8539 (while (setq article (pop articles))
8540 (unless (or (memq article gnus-newsgroup-dormant)
8541 (memq article gnus-newsgroup-marked))
8542 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8543
8544(defun gnus-summary-limit (articles &optional pop)
8545 (if pop
8546 ;; We pop the previous limit off the stack and use that.
8547 (setq articles (car gnus-newsgroup-limits)
8548 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8549 ;; We use the new limit, so we push the old limit on the stack.
8550 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8551 ;; Set the limit.
8552 (setq gnus-newsgroup-limit articles)
8553 (let ((total (length gnus-newsgroup-data))
8554 (data (gnus-data-find-list (gnus-summary-article-number)))
8555 (gnus-summary-mark-below nil) ; Inhibit this.
8556 found)
8557 ;; This will do all the work of generating the new summary buffer
8558 ;; according to the new limit.
8559 (gnus-summary-prepare)
8560 ;; Hide any threads, possibly.
23f87bed 8561 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8562 ;; Try to return to the article you were at, or one in the
8563 ;; neighborhood.
8564 (when data
8565 ;; We try to find some article after the current one.
8566 (while data
8567 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8568 (setq data nil
8569 found t))
8570 (setq data (cdr data))))
8571 (unless found
8572 ;; If there is no data, that means that we were after the last
8573 ;; article. The same goes when we can't find any articles
8574 ;; after the current one.
8575 (goto-char (point-max))
8576 (gnus-summary-find-prev))
6748645f 8577 (gnus-set-mode-line 'summary)
eec82323
LMI
8578 ;; We return how many articles were removed from the summary
8579 ;; buffer as a result of the new limit.
8580 (- total (length gnus-newsgroup-data))))
8581
8582(defsubst gnus-invisible-cut-children (threads)
8583 (let ((num 0))
8584 (while threads
8585 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8586 (incf num))
8587 (pop threads))
8588 (< num 2)))
8589
8590(defsubst gnus-cut-thread (thread)
8591 "Go forwards in the thread until we find an article that we want to display."
8592 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8593 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8594 (numberp gnus-fetch-old-headers)
eec82323
LMI
8595 (eq gnus-build-sparse-threads 'some)
8596 (eq gnus-build-sparse-threads 'more))
8597 ;; Deal with old-fetched headers and sparse threads.
8598 (while (and
8599 thread
8600 (or
8601 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8602 (gnus-summary-article-ancient-p
8603 (mail-header-number (car thread))))
6748645f
LMI
8604 (if (or (<= (length (cdr thread)) 1)
8605 (eq gnus-fetch-old-headers 'invisible))
8606 (setq gnus-newsgroup-limit
8607 (delq (mail-header-number (car thread))
8608 gnus-newsgroup-limit)
8609 thread (cadr thread))
8610 (when (gnus-invisible-cut-children (cdr thread))
8611 (let ((th (cdr thread)))
8612 (while th
8613 (if (memq (mail-header-number (caar th))
a8151ef7 8614 gnus-newsgroup-limit)
6748645f
LMI
8615 (setq thread (car th)
8616 th nil)
8617 (setq th (cdr th))))))))))
eec82323
LMI
8618 thread)
8619
8620(defun gnus-cut-threads (threads)
23f87bed 8621 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8622 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8623 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8624 (numberp gnus-fetch-old-headers)
eec82323
LMI
8625 (eq gnus-build-sparse-threads 'some)
8626 (eq gnus-build-sparse-threads 'more))
8627 (let ((th threads))
8628 (while th
8629 (setcar th (gnus-cut-thread (car th)))
8630 (setq th (cdr th)))))
8631 ;; Remove nixed out threads.
8632 (delq nil threads))
8633
8634(defun gnus-summary-initial-limit (&optional show-if-empty)
8635 "Figure out what the initial limit is supposed to be on group entry.
8636This entails weeding out unwanted dormants, low-scored articles,
8637fetch-old-headers verbiage, and so on."
8638 ;; Most groups have nothing to remove.
f394fa25
MB
8639 (unless (or gnus-inhibit-limiting
8640 (and (null gnus-newsgroup-dormant)
8641 (eq gnus-newsgroup-display 'gnus-not-ignore)
8642 (not (eq gnus-fetch-old-headers 'some))
8643 (not (numberp gnus-fetch-old-headers))
8644 (not (eq gnus-fetch-old-headers 'invisible))
8645 (null gnus-summary-expunge-below)
8646 (not (eq gnus-build-sparse-threads 'some))
8647 (not (eq gnus-build-sparse-threads 'more))
8648 (null gnus-thread-expunge-below)
8649 (not gnus-use-nocem)))
eec82323
LMI
8650 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8651 (setq gnus-newsgroup-limit nil)
8652 (mapatoms
8653 (lambda (node)
8654 (unless (car (symbol-value node))
8655 ;; These threads have no parents -- they are roots.
8656 (let ((nodes (cdr (symbol-value node)))
8657 thread)
8658 (while nodes
8659 (if (and gnus-thread-expunge-below
8660 (< (gnus-thread-total-score (car nodes))
8661 gnus-thread-expunge-below))
8662 (gnus-expunge-thread (pop nodes))
8663 (setq thread (pop nodes))
8664 (gnus-summary-limit-children thread))))))
8665 gnus-newsgroup-dependencies)
8666 ;; If this limitation resulted in an empty group, we might
8667 ;; pop the previous limit and use it instead.
8668 (when (and (not gnus-newsgroup-limit)
8669 show-if-empty)
8670 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8671 gnus-newsgroup-limit))
8672
8673(defun gnus-summary-limit-children (thread)
8674 "Return 1 if this subthread is visible and 0 if it is not."
8675 ;; First we get the number of visible children to this thread. This
8676 ;; is done by recursing down the thread using this function, so this
8677 ;; will really go down to a leaf article first, before slowly
8678 ;; working its way up towards the root.
8679 (when thread
04b61ae9 8680 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8681 (children
eec82323
LMI
8682 (if (cdr thread)
8683 (apply '+ (mapcar 'gnus-summary-limit-children
8684 (cdr thread)))
8685 0))
8686 (number (mail-header-number (car thread)))
8687 score)
8688 (if (and
8689 (not (memq number gnus-newsgroup-marked))
8690 (or
8691 ;; If this article is dormant and has absolutely no visible
8692 ;; children, then this article isn't visible.
8693 (and (memq number gnus-newsgroup-dormant)
8694 (zerop children))
8695 ;; If this is "fetch-old-headered" and there is no
8696 ;; visible children, then we don't want this article.
16409b0b
GM
8697 (and (or (eq gnus-fetch-old-headers 'some)
8698 (numberp gnus-fetch-old-headers))
eec82323
LMI
8699 (gnus-summary-article-ancient-p number)
8700 (zerop children))
6748645f
LMI
8701 ;; If this is "fetch-old-headered" and `invisible', then
8702 ;; we don't want this article.
8703 (and (eq gnus-fetch-old-headers 'invisible)
8704 (gnus-summary-article-ancient-p number))
eec82323
LMI
8705 ;; If this is a sparsely inserted article with no children,
8706 ;; we don't want it.
8707 (and (eq gnus-build-sparse-threads 'some)
8708 (gnus-summary-article-sparse-p number)
8709 (zerop children))
8710 ;; If we use expunging, and this article is really
8711 ;; low-scored, then we don't want this article.
8712 (when (and gnus-summary-expunge-below
8713 (< (setq score
8714 (or (cdr (assq number gnus-newsgroup-scored))
8715 gnus-summary-default-score))
8716 gnus-summary-expunge-below))
8717 ;; We increase the expunge-tally here, but that has
8718 ;; nothing to do with the limits, really.
8719 (incf gnus-newsgroup-expunged-tally)
8720 ;; We also mark as read here, if that's wanted.
8721 (when (and gnus-summary-mark-below
8722 (< score gnus-summary-mark-below))
8723 (setq gnus-newsgroup-unreads
8724 (delq number gnus-newsgroup-unreads))
8725 (if gnus-newsgroup-auto-expire
8726 (push number gnus-newsgroup-expirable)
8727 (push (cons number gnus-low-score-mark)
8728 gnus-newsgroup-reads)))
8729 t)
23f87bed
MB
8730 ;; Do the `display' group parameter.
8731 (and gnus-newsgroup-display
8732 (not (funcall gnus-newsgroup-display)))
eec82323 8733 ;; Check NoCeM things.
01c52d31
MB
8734 (when (and gnus-use-nocem
8735 (gnus-nocem-unwanted-article-p
8736 (mail-header-id (car thread))))
8737 (setq gnus-newsgroup-unreads
8738 (delq number gnus-newsgroup-unreads))
8739 t)))
eec82323
LMI
8740 ;; Nope, invisible article.
8741 0
8742 ;; Ok, this article is to be visible, so we add it to the limit
8743 ;; and return 1.
8744 (push number gnus-newsgroup-limit)
8745 1))))
8746
8747(defun gnus-expunge-thread (thread)
8748 "Mark all articles in THREAD as read."
8749 (let* ((number (mail-header-number (car thread))))
8750 (incf gnus-newsgroup-expunged-tally)
8751 ;; We also mark as read here, if that's wanted.
8752 (setq gnus-newsgroup-unreads
8753 (delq number gnus-newsgroup-unreads))
8754 (if gnus-newsgroup-auto-expire
8755 (push number gnus-newsgroup-expirable)
8756 (push (cons number gnus-low-score-mark)
8757 gnus-newsgroup-reads)))
8758 ;; Go recursively through all subthreads.
8759 (mapcar 'gnus-expunge-thread (cdr thread)))
8760
8761;; Summary article oriented commands
8762
8763(defun gnus-summary-refer-parent-article (n)
8764 "Refer parent article N times.
8765If N is negative, go to ancestor -N instead.
8766The difference between N and the number of articles fetched is returned."
8767 (interactive "p")
eec82323
LMI
8768 (let ((skip 1)
8769 error header ref)
8770 (when (not (natnump n))
8771 (setq skip (abs n)
8772 n 1))
8773 (while (and (> n 0)
8774 (not error))
8775 (setq header (gnus-summary-article-header))
8776 (if (and (eq (mail-header-number header)
8777 (cdr gnus-article-current))
8778 (equal gnus-newsgroup-name
8779 (car gnus-article-current)))
8780 ;; If we try to find the parent of the currently
8781 ;; displayed article, then we take a look at the actual
8782 ;; References header, since this is slightly more
8783 ;; reliable than the References field we got from the
8784 ;; server.
c7a91ce1 8785 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8786 (nnheader-narrow-to-headers)
8787 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8788 (when (setq ref (message-fetch-field "in-reply-to"))
8789 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8790 (widen))
8791 (setq ref
8792 ;; It's not the current article, so we take a bet on
8793 ;; the value we got from the server.
8794 (mail-header-references header)))
8795 (if (and ref
8796 (not (equal ref "")))
8797 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8798 (gnus-message 1 "Couldn't find parent"))
8799 (gnus-message 1 "No references in article %d"
8800 (gnus-summary-article-number))
8801 (setq error t))
8802 (decf n))
8803 (gnus-summary-position-point)
8804 n))
8805
8806(defun gnus-summary-refer-references ()
8807 "Fetch all articles mentioned in the References header.
6748645f 8808Return the number of articles fetched."
eec82323 8809 (interactive)
eec82323
LMI
8810 (let ((ref (mail-header-references (gnus-summary-article-header)))
8811 (current (gnus-summary-article-number))
8812 (n 0))
8813 (if (or (not ref)
8814 (equal ref ""))
8815 (error "No References in the current article")
8816 ;; For each Message-ID in the References header...
8817 (while (string-match "<[^>]*>" ref)
8818 (incf n)
8819 ;; ... fetch that article.
8820 (gnus-summary-refer-article
8821 (prog1 (match-string 0 ref)
8822 (setq ref (substring ref (match-end 0))))))
8823 (gnus-summary-goto-subject current)
8824 (gnus-summary-position-point)
8825 n)))
8826
6748645f
LMI
8827(defun gnus-summary-refer-thread (&optional limit)
8828 "Fetch all articles in the current thread.
8829If LIMIT (the numerical prefix), fetch that many old headers instead
8830of what's specified by the `gnus-refer-thread-limit' variable."
8831 (interactive "P")
8832 (let ((id (mail-header-id (gnus-summary-article-header)))
8833 (limit (if limit (prefix-numeric-value limit)
8834 gnus-refer-thread-limit)))
6748645f
LMI
8835 (unless (eq gnus-fetch-old-headers 'invisible)
8836 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8837 ;; Retrieve the headers and read them in.
23f87bed
MB
8838 (if (eq (if (numberp limit)
8839 (gnus-retrieve-headers
8840 (list (min
8841 (+ (mail-header-number
8842 (gnus-summary-article-header))
8843 limit)
8844 gnus-newsgroup-end))
8845 gnus-newsgroup-name (* limit 2))
8846 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8847 ;; headers.
8848 (gnus-retrieve-headers (list gnus-newsgroup-end)
8849 gnus-newsgroup-name limit))
6748645f
LMI
8850 'nov)
8851 (gnus-build-all-threads)
23f87bed 8852 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8853 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8854 (gnus-summary-limit-include-thread id)))
8855
16409b0b
GM
8856(defun gnus-summary-refer-article (message-id)
8857 "Fetch an article specified by MESSAGE-ID."
8858 (interactive "sMessage-ID: ")
eec82323
LMI
8859 (when (and (stringp message-id)
8860 (not (zerop (length message-id))))
23f87bed 8861 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8862 ;; Construct the correct Message-ID if necessary.
8863 ;; Suggested by tale@pawl.rpi.edu.
8864 (unless (string-match "^<" message-id)
8865 (setq message-id (concat "<" message-id)))
8866 (unless (string-match ">$" message-id)
8867 (setq message-id (concat message-id ">")))
23f87bed
MB
8868 ;; People often post MIDs from URLs, so unhex it:
8869 (unless (string-match "@" message-id)
8870 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8871 (let* ((header (gnus-id-to-header message-id))
8872 (sparse (and header
8873 (gnus-summary-article-sparse-p
a8151ef7
LMI
8874 (mail-header-number header))
8875 (memq (mail-header-number header)
16409b0b
GM
8876 gnus-newsgroup-limit)))
8877 number)
6748645f
LMI
8878 (cond
8879 ;; If the article is present in the buffer we just go to it.
8880 ((and header
8881 (or (not (gnus-summary-article-sparse-p
8882 (mail-header-number header)))
8883 sparse))
8884 (prog1
8885 (gnus-summary-goto-article
8886 (mail-header-number header) nil t)
8887 (when sparse
8888 (gnus-summary-update-article (mail-header-number header)))))
8889 (t
16409b0b
GM
8890 ;; We fetch the article.
8891 (catch 'found
8892 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8893 (when (and (gnus-check-server gnus-override-method)
8894 ;; Fetch the header,
8895 (setq number (gnus-summary-insert-subject message-id)))
8896 ;; and display the article.
eec82323 8897 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8898 (throw 'found t)))
8899 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8900
8901(defun gnus-refer-article-methods ()
8f688cb0 8902 "Return a list of referable methods."
16409b0b
GM
8903 (cond
8904 ;; No method, so we default to current and native.
8905 ((null gnus-refer-article-method)
8906 (list gnus-current-select-method gnus-select-method))
8907 ;; Current.
8908 ((eq 'current gnus-refer-article-method)
8909 (list gnus-current-select-method))
8910 ;; List of select methods.
d4dfaa19
DL
8911 ((not (and (symbolp (car gnus-refer-article-method))
8912 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8913 (let (out)
8914 (dolist (method gnus-refer-article-method)
8915 (push (if (eq 'current method)
8916 gnus-current-select-method
8917 method)
8918 out))
8919 (nreverse out)))
8920 ;; One single select method.
8921 (t
8922 (list gnus-refer-article-method))))
6748645f
LMI
8923
8924(defun gnus-summary-edit-parameters ()
8925 "Edit the group parameters of the current group."
8926 (interactive)
8927 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8928
16409b0b
GM
8929(defun gnus-summary-customize-parameters ()
8930 "Customize the group parameters of the current group."
8931 (interactive)
8932 (gnus-group-customize gnus-newsgroup-name))
8933
eec82323
LMI
8934(defun gnus-summary-enter-digest-group (&optional force)
8935 "Enter an nndoc group based on the current article.
8936If FORCE, force a digest interpretation. If not, try
8937to guess what the document format is."
8938 (interactive "P")
eec82323 8939 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8940 (save-window-excursion
8941 (save-excursion
8942 (let (gnus-article-prepare-hook
8943 gnus-display-mime-function
8944 gnus-break-pages)
8945 (gnus-summary-select-article))))
eec82323
LMI
8946 (setq gnus-current-window-configuration conf)
8947 (let* ((name (format "%s-%d"
8948 (gnus-group-prefixed-name
8949 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8950 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8951 gnus-current-article)))
8952 (ogroup gnus-newsgroup-name)
8953 (params (append (gnus-info-params (gnus-get-info ogroup))
8954 (list (cons 'to-group ogroup))
23f87bed 8955 (list (cons 'parent-group ogroup))
eec82323
LMI
8956 (list (cons 'save-article-group ogroup))))
8957 (case-fold-search t)
8958 (buf (current-buffer))
16409b0b 8959 dig to-address)
c7a91ce1 8960 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8961 ;; Have the digest group inherit the main mail address of
8962 ;; the parent article.
23f87bed
MB
8963 (when (setq to-address (or (gnus-fetch-field "reply-to")
8964 (gnus-fetch-field "from")))
343d6628
MB
8965 (setq params
8966 (append
8967 (list (cons 'to-address
8968 (funcall gnus-decode-encoded-address-function
8969 to-address))))))
eec82323
LMI
8970 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8971 (insert-buffer-substring gnus-original-article-buffer)
8972 ;; Remove lines that may lead nndoc to misinterpret the
8973 ;; document type.
8974 (narrow-to-region
8975 (goto-char (point-min))
8976 (or (search-forward "\n\n" nil t) (point)))
8977 (goto-char (point-min))
16409b0b 8978 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8979 (widen))
8980 (unwind-protect
23f87bed 8981 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8982 (gnus-newsgroup-ephemeral-ignored-charsets
8983 gnus-newsgroup-ignored-charsets))
8984 (gnus-group-read-ephemeral-group
8985 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8986 (nndoc-article-type
23f87bed
MB
8987 ,(if force 'mbox 'guess)))
8988 t nil nil nil
8989 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8990 "ADAPT")))))
16409b0b 8991 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8992 (nconc (gnus-info-params (gnus-get-info name))
8993 params)
8994 ;; Couldn't select this doc group.
8995 (switch-to-buffer buf)
8996 (gnus-set-global-variables)
8997 (gnus-configure-windows 'summary)
8998 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8999 (kill-buffer dig)))))
9000
9001(defun gnus-summary-read-document (n)
9002 "Open a new group based on the current article(s).
9003This will allow you to read digests and other similar
9004documents as newsgroups.
9005Obeys the standard process/prefix convention."
9006 (interactive "P")
01c52d31 9007 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
9008 (params (append (gnus-info-params (gnus-get-info ogroup))
9009 (list (cons 'to-group ogroup))))
01c52d31
MB
9010 group egroup groups vgroup)
9011 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
9012 (setq group (format "%s-%d" gnus-newsgroup-name article))
9013 (gnus-summary-remove-process-mark article)
9014 (when (gnus-summary-display-article article)
398a825b 9015 (save-excursion ;;What for?
16409b0b 9016 (with-temp-buffer
eec82323
LMI
9017 (insert-buffer-substring gnus-original-article-buffer)
9018 ;; Remove some headers that may lead nndoc to make
9019 ;; the wrong guess.
9020 (message-narrow-to-head)
9021 (goto-char (point-min))
01c52d31 9022 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9023 (widen)
9024 (if (setq egroup
9025 (gnus-group-read-ephemeral-group
9026 group `(nndoc ,group (nndoc-address ,(current-buffer))
9027 (nndoc-article-type guess))
9028 t nil t))
9029 (progn
c7a91ce1 9030 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9031 (nconc (gnus-info-params (gnus-get-info egroup))
9032 params)
9033 (push egroup groups))
9034 ;; Couldn't select this doc group.
9035 (gnus-error 3 "Article couldn't be entered"))))))
9036 ;; Now we have selected all the documents.
9037 (cond
9038 ((not groups)
9039 (error "None of the articles could be interpreted as documents"))
9040 ((gnus-group-read-ephemeral-group
9041 (setq vgroup (format
9042 "nnvirtual:%s-%s" gnus-newsgroup-name
9043 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9044 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9045 t
9046 (cons (current-buffer) 'summary)))
9047 (t
9048 (error "Couldn't select virtual nndoc group")))))
9049
9050(defun gnus-summary-isearch-article (&optional regexp-p)
9051 "Do incremental search forward on the current article.
9052If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9053 (interactive "P")
eec82323
LMI
9054 (gnus-summary-select-article)
9055 (gnus-configure-windows 'article)
9056 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9057 (save-restriction
9058 (widen)
9059 (isearch-forward regexp-p))))
eec82323 9060
01c52d31
MB
9061(defun gnus-summary-repeat-search-article-forward ()
9062 "Repeat the previous search forwards."
9063 (interactive)
9064 (unless gnus-last-search-regexp
9065 (error "No previous search"))
9066 (gnus-summary-search-article-forward gnus-last-search-regexp))
9067
9068(defun gnus-summary-repeat-search-article-backward ()
9069 "Repeat the previous search backwards."
9070 (interactive)
9071 (unless gnus-last-search-regexp
9072 (error "No previous search"))
9073 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9074
eec82323
LMI
9075(defun gnus-summary-search-article-forward (regexp &optional backward)
9076 "Search for an article containing REGEXP forward.
9077If BACKWARD, search backward instead."
9078 (interactive
9079 (list (read-string
9080 (format "Search article %s (regexp%s): "
9081 (if current-prefix-arg "backward" "forward")
9082 (if gnus-last-search-regexp
9083 (concat ", default " gnus-last-search-regexp)
9084 "")))
9085 current-prefix-arg))
eec82323
LMI
9086 (if (string-equal regexp "")
9087 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9088 (setq gnus-last-search-regexp regexp)
9089 (setq gnus-article-before-search gnus-current-article))
9090 ;; Intentionally set gnus-last-article.
9091 (setq gnus-last-article gnus-article-before-search)
9092 (let ((gnus-last-article gnus-last-article))
9093 (if (gnus-summary-search-article regexp backward)
9094 (gnus-summary-show-thread)
abc40aab 9095 (signal 'search-failed (list regexp)))))
eec82323
LMI
9096
9097(defun gnus-summary-search-article-backward (regexp)
9098 "Search for an article containing REGEXP backward."
9099 (interactive
9100 (list (read-string
9101 (format "Search article backward (regexp%s): "
9102 (if gnus-last-search-regexp
9103 (concat ", default " gnus-last-search-regexp)
9104 "")))))
9105 (gnus-summary-search-article-forward regexp 'backward))
9106
9107(defun gnus-summary-search-article (regexp &optional backward)
9108 "Search for an article containing REGEXP.
9109Optional argument BACKWARD means do search for backward.
9110`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9111 ;; We have to require this here to make sure that the following
9112 ;; dynamic binding isn't shadowed by autoloading.
9113 (require 'gnus-async)
16409b0b 9114 (require 'gnus-art)
eec82323 9115 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9116 (gnus-article-prepare-hook nil)
eec82323
LMI
9117 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9118 (gnus-use-article-prefetch nil)
9119 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9120 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9121 (gnus-visual nil)
9122 (gnus-keep-backlog nil)
9123 (gnus-break-pages nil)
9124 (gnus-summary-display-arrow nil)
9125 (gnus-updated-mode-lines nil)
9126 (gnus-auto-center-summary nil)
eec82323 9127 (sum (current-buffer))
16409b0b 9128 (gnus-display-mime-function nil)
eec82323
LMI
9129 (found nil)
9130 point)
9131 (gnus-save-hidden-threads
9132 (gnus-summary-select-article)
9133 (set-buffer gnus-article-buffer)
16409b0b 9134 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9135 (when backward
9136 (forward-line -1))
9137 (while (not found)
9138 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9139 (if (if backward
9140 (re-search-backward regexp nil t)
9141 (re-search-forward regexp nil t))
9142 ;; We found the regexp.
9143 (progn
9144 (setq found 'found)
9145 (beginning-of-line)
9146 (set-window-start
9147 (get-buffer-window (current-buffer))
9148 (point))
9149 (forward-line 1)
16409b0b
GM
9150 (set-window-point
9151 (get-buffer-window (current-buffer))
9152 (point))
eec82323
LMI
9153 (set-buffer sum)
9154 (setq point (point)))
9155 ;; We didn't find it, so we go to the next article.
9156 (set-buffer sum)
9157 (setq found 'not)
9158 (while (eq found 'not)
9159 (if (not (if backward (gnus-summary-find-prev)
9160 (gnus-summary-find-next)))
9161 ;; No more articles.
9162 (setq found t)
9163 ;; Select the next article and adjust point.
9164 (unless (gnus-summary-article-sparse-p
9165 (gnus-summary-article-number))
9166 (setq found nil)
9167 (gnus-summary-select-article)
9168 (set-buffer gnus-article-buffer)
9169 (widen)
9170 (goto-char (if backward (point-max) (point-min))))))))
9171 (gnus-message 7 ""))
9172 ;; Return whether we found the regexp.
9173 (when (eq found 'found)
9174 (goto-char point)
9175 (gnus-summary-show-thread)
9176 (gnus-summary-goto-subject gnus-current-article)
9177 (gnus-summary-position-point)
9178 t)))
9179
23f87bed
MB
9180(defun gnus-find-matching-articles (header regexp)
9181 "Return a list of all articles that match REGEXP on HEADER.
9182This search includes all articles in the current group that Gnus has
9183fetched headers for, whether they are displayed or not."
9184 (let ((articles nil)
c7a91ce1 9185 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9186 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9187 (case-fold-search t))
9188 (dolist (header gnus-newsgroup-headers)
9189 (when (string-match regexp (funcall func header))
9190 (push (mail-header-number header) articles)))
9191 (nreverse articles)))
9192
eec82323 9193(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9194 not-case-fold not-matching)
eec82323
LMI
9195 "Return a list of all articles that match REGEXP on HEADER.
9196The search stars on the current article and goes forwards unless
9197BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9198If UNREAD is non-nil, only unread articles will
9199be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9200in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9201not match REGEXP on HEADER."
9202 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9203 articles d func)
9204 (if (consp header)
9205 (if (eq (car header) 'extra)
9206 (setq func
9207 `(lambda (h)
9208 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9209 "")))
9210 (error "%s is an invalid header" header))
9211 (unless (fboundp (intern (concat "mail-header-" header)))
9212 (error "%s is not a valid header" header))
9213 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9214 (dolist (d (if (eq backward 'all)
9215 gnus-newsgroup-data
9216 (gnus-data-find-list
9217 (gnus-summary-article-number)
9218 (gnus-data-list backward))))
9219 (when (and (or (not unread) ; We want all articles...
9220 (gnus-data-unread-p d)) ; Or just unreads.
9221 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9222 (if not-matching
a1506d29 9223 (not (string-match
47b63dfa
SZ
9224 regexp
9225 (funcall func (gnus-data-header d))))
9226 (string-match regexp
9227 (funcall func (gnus-data-header d)))))
9228 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9229 (nreverse articles)))
9230
9231(defun gnus-summary-execute-command (header regexp command &optional backward)
9232 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9233If HEADER is an empty string (or nil), the match is done on the entire
9234article. If BACKWARD (the prefix) is non-nil, search backward instead."
9235 (interactive
9236 (list (let ((completion-ignore-case t))
9237 (completing-read
9238 "Header name: "
23f87bed
MB
9239 (mapcar (lambda (header) (list (format "%s" header)))
9240 (append
9241 '("Number" "Subject" "From" "Lines" "Date"
9242 "Message-ID" "Xref" "References" "Body")
9243 gnus-extra-headers))
eec82323
LMI
9244 nil 'require-match))
9245 (read-string "Regexp: ")
9246 (read-key-sequence "Command: ")
9247 current-prefix-arg))
9248 (when (equal header "Body")
9249 (setq header ""))
eec82323
LMI
9250 ;; Hidden thread subtrees must be searched as well.
9251 (gnus-summary-show-all-threads)
9252 ;; We don't want to change current point nor window configuration.
9253 (save-excursion
9254 (save-window-excursion
23f87bed
MB
9255 (let (gnus-visual
9256 gnus-treat-strip-trailing-blank-lines
9257 gnus-treat-strip-leading-blank-lines
9258 gnus-treat-strip-multiple-blank-lines
9259 gnus-treat-hide-boring-headers
9260 gnus-treat-fold-newsgroups
9261 gnus-article-prepare-hook)
9262 (gnus-message 6 "Executing %s..." (key-description command))
9263 ;; We'd like to execute COMMAND interactively so as to give arguments.
9264 (gnus-execute header regexp
9265 `(call-interactively ',(key-binding command))
9266 backward)
9267 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9268
9269(defun gnus-summary-beginning-of-article ()
9270 "Scroll the article back to the beginning."
9271 (interactive)
eec82323
LMI
9272 (gnus-summary-select-article)
9273 (gnus-configure-windows 'article)
9274 (gnus-eval-in-buffer-window gnus-article-buffer
9275 (widen)
9276 (goto-char (point-min))
23f87bed 9277 (when gnus-break-pages
eec82323
LMI
9278 (gnus-narrow-to-page))))
9279
9280(defun gnus-summary-end-of-article ()
9281 "Scroll to the end of the article."
9282 (interactive)
eec82323
LMI
9283 (gnus-summary-select-article)
9284 (gnus-configure-windows 'article)
9285 (gnus-eval-in-buffer-window gnus-article-buffer
9286 (widen)
9287 (goto-char (point-max))
9288 (recenter -3)
23f87bed 9289 (when gnus-break-pages
eec82323
LMI
9290 (gnus-narrow-to-page))))
9291
23f87bed
MB
9292(defun gnus-summary-print-truncate-and-quote (string &optional len)
9293 "Truncate to LEN and quote all \"(\"'s in STRING."
9294 (gnus-replace-in-string (if (and len (> (length string) len))
9295 (substring string 0 len)
9296 string)
9297 "[()]" "\\\\\\&"))
9298
6748645f 9299(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9300 "Generate and print a PostScript image of the process-marked (mail) articles.
9301
9302If used interactively, print the current article if none are
9303process-marked. With prefix arg, prompt the user for the name of the
9304file to save in.
6748645f 9305
23f87bed
MB
9306When used from Lisp, accept two optional args FILENAME and N. N means
9307to print the next N articles. If N is negative, print the N previous
9308articles. If N is nil and articles have been marked with the process
9309mark, print these instead.
eec82323 9310
16409b0b 9311If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9312printer. If FILENAME is a string, save the PostScript image in a file with
9313that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9314to save in."
676a7cc9 9315 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9316 (dolist (article (gnus-summary-work-articles n))
9317 (gnus-summary-select-article nil nil 'pseudo article)
9318 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9319 (gnus-print-buffer))
676a7cc9
SZ
9320 (gnus-summary-remove-process-mark article))
9321 (ps-despool filename))
eec82323 9322
23f87bed
MB
9323(defun gnus-print-buffer ()
9324 (let ((buffer (generate-new-buffer " *print*")))
9325 (unwind-protect
9326 (progn
9327 (copy-to-buffer buffer (point-min) (point-max))
9328 (set-buffer buffer)
9329 (gnus-remove-text-with-property 'gnus-decoration)
9330 (when (gnus-visual-p 'article-highlight 'highlight)
9331 ;; Copy-to-buffer doesn't copy overlay. So redo
9332 ;; highlight.
9333 (let ((gnus-article-buffer buffer))
9334 (gnus-article-highlight-citation t)
9335 (gnus-article-highlight-signature)
9336 (gnus-article-emphasize)
9337 (gnus-article-delete-invisible-text)))
9338 (let ((ps-left-header
9339 (list
9340 (concat "("
9341 (gnus-summary-print-truncate-and-quote
9342 (mail-header-subject gnus-current-headers)
9343 66) ")")
9344 (concat "("
9345 (gnus-summary-print-truncate-and-quote
9346 (mail-header-from gnus-current-headers)
9347 45) ")")))
9348 (ps-right-header
9349 (list
9350 "/pagenumberstring load"
9351 (concat "("
9352 (mail-header-date gnus-current-headers) ")"))))
9353 (gnus-run-hooks 'gnus-ps-print-hook)
9354 (save-excursion
a7b50e1c 9355 (if ps-print-color-p
23f87bed
MB
9356 (ps-spool-buffer-with-faces)
9357 (ps-spool-buffer)))))
9358 (kill-buffer buffer))))
9359
eec82323 9360(defun gnus-summary-show-article (&optional arg)
23f87bed 9361 "Force redisplaying of the current article.
16409b0b
GM
9362If ARG (the prefix) is a number, show the article with the charset
9363defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9364input.
16409b0b 9365If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9366without any article massaging functions being run. Normally, the key
9367strokes are `C-u g'."
eec82323 9368 (interactive "P")
16409b0b
GM
9369 (cond
9370 ((numberp arg)
23f87bed 9371 (gnus-summary-show-article t)
16409b0b
GM
9372 (let ((gnus-newsgroup-charset
9373 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9374 (mm-read-coding-system
9375 "View as charset: " ;; actually it is coding system.
01c52d31 9376 (with-current-buffer gnus-article-buffer
23f87bed 9377 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9378 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9379 (gnus-summary-select-article nil 'force)
9380 (let ((deps gnus-newsgroup-dependencies)
9381 head header lines)
c7a91ce1 9382 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9383 (save-restriction
9384 (message-narrow-to-head)
9385 (setq head (buffer-string))
9386 (goto-char (point-min))
9387 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9388 (goto-char (point-max))
9389 (widen)
9390 (setq lines (1- (count-lines (point) (point-max))))))
9391 (with-temp-buffer
9392 (insert (format "211 %d Article retrieved.\n"
9393 (cdr gnus-article-current)))
9394 (insert head)
9395 (if lines (insert (format "Lines: %d\n" lines)))
9396 (insert ".\n")
9397 (let ((nntp-server-buffer (current-buffer)))
9398 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9399 (gnus-data-set-header
9400 (gnus-data-find (cdr gnus-article-current))
9401 header)
9402 (gnus-summary-update-article-line
9403 (cdr gnus-article-current) header)
9404 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9405 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9406 ((not arg)
9407 ;; Select the article the normal way.
9408 (gnus-summary-select-article nil 'force))
9409 (t
9410 ;; We have to require this here to make sure that the following
9411 ;; dynamic binding isn't shadowed by autoloading.
9412 (require 'gnus-async)
9413 (require 'gnus-art)
eec82323
LMI
9414 ;; Bind the article treatment functions to nil.
9415 (let ((gnus-have-all-headers t)
eec82323 9416 gnus-article-prepare-hook
16409b0b
GM
9417 gnus-article-decode-hook
9418 gnus-display-mime-function
9419 gnus-break-pages)
9420 ;; Destroy any MIME parts.
9421 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9422 (with-current-buffer gnus-article-buffer
16409b0b
GM
9423 (mm-destroy-parts gnus-article-mime-handles)
9424 ;; Set it to nil for safety reason.
9425 (setq gnus-article-mime-handle-alist nil)
9426 (setq gnus-article-mime-handles nil)))
9427 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9428 (gnus-summary-goto-subject gnus-current-article)
9429 (gnus-summary-position-point))
9430
23f87bed
MB
9431(defun gnus-summary-show-raw-article ()
9432 "Show the raw article without any article massaging functions being run."
9433 (interactive)
9434 (gnus-summary-show-article t))
9435
eec82323
LMI
9436(defun gnus-summary-verbose-headers (&optional arg)
9437 "Toggle permanent full header display.
9438If ARG is a positive number, turn header display on.
9439If ARG is a negative number, turn header display off."
9440 (interactive "P")
eec82323
LMI
9441 (setq gnus-show-all-headers
9442 (cond ((or (not (numberp arg))
9443 (zerop arg))
9444 (not gnus-show-all-headers))
9445 ((natnump arg)
9446 t)))
9447 (gnus-summary-show-article))
9448
9449(defun gnus-summary-toggle-header (&optional arg)
9450 "Show the headers if they are hidden, or hide them if they are shown.
9451If ARG is a positive number, show the entire header.
9452If ARG is a negative number, hide the unwanted header lines."
9453 (interactive "P")
23f87bed
MB
9454 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9455 (get-buffer-window gnus-article-buffer t))))
9456 (with-current-buffer gnus-article-buffer
9457 (widen)
9458 (article-narrow-to-head)
c7a91ce1 9459 (let* ((inhibit-read-only t)
16409b0b 9460 (inhibit-point-motion-hooks t)
23f87bed
MB
9461 (hidden (if (numberp arg)
9462 (>= arg 0)
f0096211
MB
9463 (or (not (looking-at "[^ \t\n]+:"))
9464 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9465 s e)
9466 (delete-region (point-min) (point-max))
667e0ba6
SM
9467 (with-current-buffer gnus-original-article-buffer
9468 (goto-char (setq s (point-min)))
23f87bed
MB
9469 (setq e (if (search-forward "\n\n" nil t)
9470 (1- (point))
9471 (point-max))))
667e0ba6 9472 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9473 (run-hooks 'gnus-article-decode-hook)
9474 (if hidden
9475 (let ((gnus-treat-hide-headers nil)
9476 (gnus-treat-hide-boring-headers nil))
9477 (gnus-delete-wash-type 'headers)
9478 (gnus-treat-article 'head))
9479 (gnus-treat-article 'head))
9480 (widen)
9481 (if window
9482 (set-window-start window (goto-char (point-min))))
9483 (if gnus-break-pages
9484 (gnus-narrow-to-page)
9485 (when (gnus-visual-p 'page-marker)
c7a91ce1 9486 (let ((inhibit-read-only t))
23f87bed
MB
9487 (gnus-remove-text-with-property 'gnus-prev)
9488 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9489 (gnus-set-mode-line 'article)))))
eec82323
LMI
9490
9491(defun gnus-summary-show-all-headers ()
9492 "Make all header lines visible."
9493 (interactive)
23f87bed 9494 (gnus-summary-toggle-header 1))
eec82323 9495
eec82323
LMI
9496(defun gnus-summary-caesar-message (&optional arg)
9497 "Caesar rotate the current article by 13.
01c52d31
MB
9498With a non-numerical prefix, also rotate headers. A numerical
9499prefix specifies how many places to rotate each letter forward."
eec82323 9500 (interactive "P")
eec82323
LMI
9501 (gnus-summary-select-article)
9502 (let ((mail-header-separator ""))
9503 (gnus-eval-in-buffer-window gnus-article-buffer
9504 (save-restriction
9505 (widen)
9506 (let ((start (window-start))
c7a91ce1 9507 (inhibit-read-only t))
01c52d31
MB
9508 (if (equal arg '(4))
9509 (message-caesar-buffer-body nil t)
9510 (message-caesar-buffer-body arg))
ff4d3926
MB
9511 (set-window-start (get-buffer-window (current-buffer)) start)))))
9512 ;; Create buttons and stuff...
9513 (gnus-treat-article nil))
eec82323 9514
704f1663
GM
9515(declare-function idna-to-unicode "ext:idna" (str))
9516
01c52d31
MB
9517(defun gnus-summary-idna-message (&optional arg)
9518 "Decode IDNA encoded domain names in the current articles.
9519IDNA encoded domain names looks like `xn--bar'. If a string
9520remain unencoded after running this function, it is likely an
9521invalid IDNA string (`xn--bar' is invalid).
9522
0b10e437 9523You must have GNU Libidn (URL `http://www.gnu.org/software/libidn/')
01c52d31
MB
9524installed for this command to work."
9525 (interactive "P")
9526 (if (not (and (condition-case nil (require 'idna)
9527 (file-error))
9528 (mm-coding-system-p 'utf-8)
9529 (executable-find (symbol-value 'idna-program))))
9530 (gnus-message
9531 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9532 (gnus-summary-select-article)
9533 (let ((mail-header-separator ""))
9534 (gnus-eval-in-buffer-window gnus-article-buffer
9535 (save-restriction
9536 (widen)
9537 (let ((start (window-start))
9538 buffer-read-only)
9539 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9540 (replace-match (idna-to-unicode (match-string 1))))
9541 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9542
9543(defun gnus-summary-morse-message (&optional arg)
9544 "Morse decode the current article."
9545 (interactive "P")
9546 (gnus-summary-select-article)
9547 (let ((mail-header-separator ""))
9548 (gnus-eval-in-buffer-window gnus-article-buffer
9549 (save-excursion
9550 (save-restriction
9551 (widen)
9552 (let ((pos (window-start))
c7a91ce1 9553 (inhibit-read-only t))
23f87bed
MB
9554 (goto-char (point-min))
9555 (when (message-goto-body)
9556 (gnus-narrow-to-body))
9557 (goto-char (point-min))
01c52d31 9558