Merge changes made in Gnus trunk.
[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 1541 '(gnus-newsgroup-name
b1ae92ba
G
1542
1543 ;; Marks lists
1544 gnus-newsgroup-unreads
1545 gnus-newsgroup-unselected
1546 gnus-newsgroup-marked
1547 gnus-newsgroup-spam-marked
1548 gnus-newsgroup-reads
1549 gnus-newsgroup-saved
1550 gnus-newsgroup-replied
1551 gnus-newsgroup-forwarded
1552 gnus-newsgroup-recent
1553 gnus-newsgroup-expirable
1554 gnus-newsgroup-killed
1555 gnus-newsgroup-unseen
1556 gnus-newsgroup-seen
1557 gnus-newsgroup-cached
1558 gnus-newsgroup-downloadable
1559 gnus-newsgroup-undownloaded
1560 gnus-newsgroup-unsendable
1561
eec82323
LMI
1562 gnus-newsgroup-begin gnus-newsgroup-end
1563 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1564 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1565 gnus-newsgroup-last-directory
b1ae92ba
G
1566 gnus-newsgroup-auto-expire
1567 gnus-newsgroup-processable
23f87bed 1568 gnus-newsgroup-unfetched
b1ae92ba 1569 gnus-newsgroup-articles
eec82323
LMI
1570 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1571 gnus-newsgroup-headers gnus-newsgroup-threads
1572 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1573 gnus-current-article gnus-current-headers gnus-have-all-headers
1574 gnus-last-article gnus-article-internal-prepare-hook
1575 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1576 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1577 gnus-thread-expunge-below
16409b0b
GM
1578 gnus-score-alist gnus-current-score-file
1579 (gnus-summary-expunge-below . global)
eec82323 1580 (gnus-summary-mark-below . global)
16409b0b 1581 (gnus-orphan-score . global)
eec82323
LMI
1582 gnus-newsgroup-active gnus-scores-exclude-files
1583 gnus-newsgroup-history gnus-newsgroup-ancient
1584 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1585 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1586 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1587 (gnus-newsgroup-expunged-tally . 0)
b1ae92ba 1588 gnus-cache-removable-articles
eec82323 1589 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1590 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1591 gnus-newsgroup-charset gnus-newsgroup-display
1592 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1593 "Variables that are buffer-local to the summary buffers.")
1594
23f87bed
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1595(defvar gnus-newsgroup-variables nil
1596 "A list of variables that have separate values in different newsgroups.
1597A list of newsgroup (summary buffer) local variables, or cons of
1598variables and their default expressions to be evalled (when the default
1599values are not nil), that should be made global while the summary buffer
1600is active.
1601
1602Note: The default expressions will be evaluated (using function `eval')
1603before assignment to the local variable rather than just assigned to it.
1604If the default expression is the symbol `global', that symbol will not
1605be evaluated but the global value of the local variable will be used
1606instead.
1607
1608These variables can be used to set variables in the group parameters
1609while still allowing them to affect operations done in other buffers.
1610For example:
1611
1612\(setq gnus-newsgroup-variables
1613 '(message-use-followup-to
1614 (gnus-visible-headers .
1615 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1616")
1617
23f87bed
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1618(eval-when-compile
1619 ;; Bind features so that require will believe that gnus-sum has
1620 ;; already been loaded (avoids infinite recursion)
1621 (let ((features (cons 'gnus-sum features)))
23f87bed 1622 (require 'gnus-art)))
eec82323 1623
16409b0b
GM
1624;; MIME stuff.
1625
1626(defvar gnus-decode-encoded-word-methods
1627 '(mail-decode-encoded-word-string)
1628 "List of methods used to decode encoded words.
1629
23f87bed
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1630This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1631is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1632\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1633whose names match REGEXP.
1634
1635For example:
23f87bed 1636\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1637 mail-decode-encoded-word-string
1638 (\"chinese\" . rfc1843-decode-string))")
1639
1640(defvar gnus-decode-encoded-word-methods-cache nil)
1641
1642(defun gnus-multi-decode-encoded-word-string (string)
1643 "Apply the functions from `gnus-encoded-word-methods' that match."
1644 (unless (and gnus-decode-encoded-word-methods-cache
1645 (eq gnus-newsgroup-name
1646 (car gnus-decode-encoded-word-methods-cache)))
1647 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
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MB
1648 (dolist (method gnus-decode-encoded-word-methods)
1649 (if (symbolp method)
1650 (nconc gnus-decode-encoded-word-methods-cache (list method))
1651 (if (and gnus-newsgroup-name
1652 (string-match (car method) gnus-newsgroup-name))
1653 (nconc gnus-decode-encoded-word-methods-cache
1654 (list (cdr method)))))))
1655 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1656 (setq string (funcall method string))))
16409b0b 1657
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LMI
1658;; Subject simplification.
1659
6748645f 1660(defun gnus-simplify-whitespace (str)
16409b0b 1661 "Remove excessive whitespace from STR."
23f87bed
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1662 ;; Multiple spaces.
1663 (while (string-match "[ \t][ \t]+" str)
1664 (setq str (concat (substring str 0 (match-beginning 0))
1665 " "
1666 (substring str (match-end 0)))))
1667 ;; Leading spaces.
1668 (when (string-match "^[ \t]+" str)
1669 (setq str (substring str (match-end 0))))
1670 ;; Trailing spaces.
1671 (when (string-match "[ \t]+$" str)
1672 (setq str (substring str 0 (match-beginning 0))))
1673 str)
1674
1675(defun gnus-simplify-all-whitespace (str)
1676 "Remove all whitespace from STR."
1677 (while (string-match "[ \t\n]+" str)
1678 (setq str (replace-match "" nil nil str)))
1679 str)
6748645f 1680
eec82323
LMI
1681(defsubst gnus-simplify-subject-re (subject)
1682 "Remove \"Re:\" from subject lines."
23f87bed 1683 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1684 (substring subject (match-end 0))
1685 subject))
1686
1687(defun gnus-simplify-subject (subject &optional re-only)
1688 "Remove `Re:' and words in parentheses.
1689If RE-ONLY is non-nil, strip leading `Re:'s only."
1690 (let ((case-fold-search t)) ;Ignore case.
1691 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1692 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1693 (setq subject (substring subject (match-end 0))))
1694 ;; Remove uninteresting prefixes.
1695 (when (and (not re-only)
1696 gnus-simplify-ignored-prefixes
1697 (string-match gnus-simplify-ignored-prefixes subject))
1698 (setq subject (substring subject (match-end 0))))
1699 ;; Remove words in parentheses from end.
1700 (unless re-only
1701 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1702 (setq subject (substring subject 0 (match-beginning 0)))))
1703 ;; Return subject string.
1704 subject))
1705
1706;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1707;; all whitespace.
1708(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1709 (goto-char (point-min))
1710 (while (re-search-forward regexp nil t)
16409b0b 1711 (replace-match (or newtext ""))))
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LMI
1712
1713(defun gnus-simplify-buffer-fuzzy ()
1714 "Simplify string in the buffer fuzzily.
1715The string in the accessible portion of the current buffer is simplified.
1716It is assumed to be a single-line subject.
1717Whitespace is generally cleaned up, and miscellaneous leading/trailing
1718matter is removed. Additional things can be deleted by setting
16409b0b 1719`gnus-simplify-subject-fuzzy-regexp'."
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1720 (let ((case-fold-search t)
1721 (modified-tick))
1722 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1723
1724 (while (not (eq modified-tick (buffer-modified-tick)))
1725 (setq modified-tick (buffer-modified-tick))
1726 (cond
1727 ((listp gnus-simplify-subject-fuzzy-regexp)
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1728 (mapc 'gnus-simplify-buffer-fuzzy-step
1729 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1730 (gnus-simplify-subject-fuzzy-regexp
1731 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1732 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1733 (gnus-simplify-buffer-fuzzy-step
1734 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1735 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1736
1737 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1738 (gnus-simplify-buffer-fuzzy-step " +" " ")
1739 (gnus-simplify-buffer-fuzzy-step " $")
1740 (gnus-simplify-buffer-fuzzy-step "^ +")))
1741
1742(defun gnus-simplify-subject-fuzzy (subject)
1743 "Simplify a subject string fuzzily.
6748645f 1744See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1745 (save-excursion
1746 (gnus-set-work-buffer)
1747 (let ((case-fold-search t))
6748645f
LMI
1748 ;; Remove uninteresting prefixes.
1749 (when (and gnus-simplify-ignored-prefixes
1750 (string-match gnus-simplify-ignored-prefixes subject))
1751 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1752 (insert subject)
1753 (inline (gnus-simplify-buffer-fuzzy))
1754 (buffer-string))))
1755
1756(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1757 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1758 (cond
6748645f
LMI
1759 (gnus-simplify-subject-functions
1760 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1761 ((null gnus-summary-gather-subject-limit)
1762 (gnus-simplify-subject-re subject))
1763 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1764 (gnus-simplify-subject-fuzzy subject))
1765 ((numberp gnus-summary-gather-subject-limit)
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1766 (truncate-string-to-width (gnus-simplify-subject-re subject)
1767 gnus-summary-gather-subject-limit))
eec82323
LMI
1768 (t
1769 subject)))
1770
1771(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1772 "Check whether two subjects are equal.
23f87bed 1773If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1774simplified."
eec82323
LMI
1775 (cond
1776 ((null simple-first)
1777 (equal (gnus-simplify-subject-fully s1)
1778 (gnus-simplify-subject-fully s2)))
1779 (t
1780 (equal s1
1781 (gnus-simplify-subject-fully s2)))))
1782
1783(defun gnus-summary-bubble-group ()
1784 "Increase the score of the current group.
1785This is a handy function to add to `gnus-summary-exit-hook' to
1786increase the score of each group you read."
1787 (gnus-group-add-score gnus-newsgroup-name))
1788
1789\f
1790;;;
1791;;; Gnus summary mode
1792;;;
1793
1794(put 'gnus-summary-mode 'mode-class 'special)
1795
1653df0f
SZ
1796(defvar gnus-article-commands-menu)
1797
23f87bed
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1798;; Non-orthogonal keys
1799
1800(gnus-define-keys gnus-summary-mode-map
1801 " " gnus-summary-next-page
1802 "\177" gnus-summary-prev-page
1803 [delete] gnus-summary-prev-page
1804 [backspace] gnus-summary-prev-page
1805 "\r" gnus-summary-scroll-up
1806 "\M-\r" gnus-summary-scroll-down
1807 "n" gnus-summary-next-unread-article
1808 "p" gnus-summary-prev-unread-article
1809 "N" gnus-summary-next-article
1810 "P" gnus-summary-prev-article
1811 "\M-\C-n" gnus-summary-next-same-subject
1812 "\M-\C-p" gnus-summary-prev-same-subject
1813 "\M-n" gnus-summary-next-unread-subject
1814 "\M-p" gnus-summary-prev-unread-subject
1815 "." gnus-summary-first-unread-article
1816 "," gnus-summary-best-unread-article
1817 "\M-s" gnus-summary-search-article-forward
1818 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1819 "\M-S" gnus-summary-repeat-search-article-forward
1820 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
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1821 "<" gnus-summary-beginning-of-article
1822 ">" gnus-summary-end-of-article
1823 "j" gnus-summary-goto-article
1824 "^" gnus-summary-refer-parent-article
1825 "\M-^" gnus-summary-refer-article
1826 "u" gnus-summary-tick-article-forward
1827 "!" gnus-summary-tick-article-forward
1828 "U" gnus-summary-tick-article-backward
1829 "d" gnus-summary-mark-as-read-forward
1830 "D" gnus-summary-mark-as-read-backward
1831 "E" gnus-summary-mark-as-expirable
1832 "\M-u" gnus-summary-clear-mark-forward
1833 "\M-U" gnus-summary-clear-mark-backward
1834 "k" gnus-summary-kill-same-subject-and-select
1835 "\C-k" gnus-summary-kill-same-subject
1836 "\M-\C-k" gnus-summary-kill-thread
1837 "\M-\C-l" gnus-summary-lower-thread
1838 "e" gnus-summary-edit-article
1839 "#" gnus-summary-mark-as-processable
1840 "\M-#" gnus-summary-unmark-as-processable
1841 "\M-\C-t" gnus-summary-toggle-threads
1842 "\M-\C-s" gnus-summary-show-thread
1843 "\M-\C-h" gnus-summary-hide-thread
1844 "\M-\C-f" gnus-summary-next-thread
1845 "\M-\C-b" gnus-summary-prev-thread
1846 [(meta down)] gnus-summary-next-thread
1847 [(meta up)] gnus-summary-prev-thread
1848 "\M-\C-u" gnus-summary-up-thread
1849 "\M-\C-d" gnus-summary-down-thread
1850 "&" gnus-summary-execute-command
1851 "c" gnus-summary-catchup-and-exit
1852 "\C-w" gnus-summary-mark-region-as-read
1853 "\C-t" gnus-summary-toggle-truncation
1854 "?" gnus-summary-mark-as-dormant
1855 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1856 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1857 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
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1858 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1859 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1860 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1861 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
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1862 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1863 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1864 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
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1865 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1866 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1867 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1868 "=" gnus-summary-expand-window
1869 "\C-x\C-s" gnus-summary-reselect-current-group
1870 "\M-g" gnus-summary-rescan-group
23f87bed
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1871 "\C-c\C-r" gnus-summary-caesar-message
1872 "f" gnus-summary-followup
1873 "F" gnus-summary-followup-with-original
1874 "C" gnus-summary-cancel-article
1875 "r" gnus-summary-reply
1876 "R" gnus-summary-reply-with-original
1877 "\C-c\C-f" gnus-summary-mail-forward
1878 "o" gnus-summary-save-article
1879 "\C-o" gnus-summary-save-article-mail
1880 "|" gnus-summary-pipe-output
1881 "\M-k" gnus-summary-edit-local-kill
1882 "\M-K" gnus-summary-edit-global-kill
1883 ;; "V" gnus-version
1884 "\C-c\C-d" gnus-summary-describe-group
1885 "q" gnus-summary-exit
1886 "Q" gnus-summary-exit-no-update
1887 "\C-c\C-i" gnus-info-find-node
1888 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1889 [follow-link] mouse-face
23f87bed
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1890 "m" gnus-summary-mail-other-window
1891 "a" gnus-summary-post-news
23f87bed
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1892 "x" gnus-summary-limit-to-unread
1893 "s" gnus-summary-isearch-article
1894 "t" gnus-summary-toggle-header
1895 "g" gnus-summary-show-article
1896 "l" gnus-summary-goto-last-article
1897 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1898 "\C-d" gnus-summary-enter-digest-group
1899 "\M-\C-d" gnus-summary-read-document
1900 "\M-\C-e" gnus-summary-edit-parameters
1901 "\M-\C-a" gnus-summary-customize-parameters
1902 "\C-c\C-b" gnus-bug
1903 "*" gnus-cache-enter-article
1904 "\M-*" gnus-cache-remove-article
1905 "\M-&" gnus-summary-universal-argument
1906 "\C-l" gnus-recenter
1907 "I" gnus-summary-increase-score
1908 "L" gnus-summary-lower-score
1909 "\M-i" gnus-symbolic-argument
1910 "h" gnus-summary-select-article-buffer
1911
1912 "b" gnus-article-view-part
1913 "\M-t" gnus-summary-toggle-display-buttonized
1914
1915 "V" gnus-summary-score-map
1916 "X" gnus-uu-extract-map
1917 "S" gnus-summary-send-map)
1918
1919;; Sort of orthogonal keymap
1920(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1921 "t" gnus-summary-tick-article-forward
1922 "!" gnus-summary-tick-article-forward
1923 "d" gnus-summary-mark-as-read-forward
1924 "r" gnus-summary-mark-as-read-forward
1925 "c" gnus-summary-clear-mark-forward
1926 " " gnus-summary-clear-mark-forward
1927 "e" gnus-summary-mark-as-expirable
1928 "x" gnus-summary-mark-as-expirable
1929 "?" gnus-summary-mark-as-dormant
1930 "b" gnus-summary-set-bookmark
1931 "B" gnus-summary-remove-bookmark
1932 "#" gnus-summary-mark-as-processable
1933 "\M-#" gnus-summary-unmark-as-processable
1934 "S" gnus-summary-limit-include-expunged
1935 "C" gnus-summary-catchup
1936 "H" gnus-summary-catchup-to-here
1937 "h" gnus-summary-catchup-from-here
1938 "\C-c" gnus-summary-catchup-all
1939 "k" gnus-summary-kill-same-subject-and-select
1940 "K" gnus-summary-kill-same-subject
1941 "P" gnus-uu-mark-map)
1942
1943(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1944 "c" gnus-summary-clear-above
1945 "u" gnus-summary-tick-above
1946 "m" gnus-summary-mark-above
1947 "k" gnus-summary-kill-below)
1948
1949(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1950 "/" gnus-summary-limit-to-subject
1951 "n" gnus-summary-limit-to-articles
01c52d31
MB
1952 "b" gnus-summary-limit-to-bodies
1953 "h" gnus-summary-limit-to-headers
23f87bed
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1954 "w" gnus-summary-pop-limit
1955 "s" gnus-summary-limit-to-subject
1956 "a" gnus-summary-limit-to-author
1957 "u" gnus-summary-limit-to-unread
1958 "m" gnus-summary-limit-to-marks
1959 "M" gnus-summary-limit-exclude-marks
1960 "v" gnus-summary-limit-to-score
1961 "*" gnus-summary-limit-include-cached
1962 "D" gnus-summary-limit-include-dormant
1963 "T" gnus-summary-limit-include-thread
1964 "d" gnus-summary-limit-exclude-dormant
1965 "t" gnus-summary-limit-to-age
1966 "." gnus-summary-limit-to-unseen
1967 "x" gnus-summary-limit-to-extra
1968 "p" gnus-summary-limit-to-display-predicate
1969 "E" gnus-summary-limit-include-expunged
1970 "c" gnus-summary-limit-exclude-childless-dormant
1971 "C" gnus-summary-limit-mark-excluded-as-read
1972 "o" gnus-summary-insert-old-articles
01c52d31
MB
1973 "N" gnus-summary-insert-new-articles
1974 "S" gnus-summary-limit-to-singletons
1975 "r" gnus-summary-limit-to-replied
1976 "R" gnus-summary-limit-to-recipient
1977 "A" gnus-summary-limit-to-address)
23f87bed
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1978
1979(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1980 "n" gnus-summary-next-unread-article
1981 "p" gnus-summary-prev-unread-article
1982 "N" gnus-summary-next-article
1983 "P" gnus-summary-prev-article
1984 "\C-n" gnus-summary-next-same-subject
1985 "\C-p" gnus-summary-prev-same-subject
1986 "\M-n" gnus-summary-next-unread-subject
1987 "\M-p" gnus-summary-prev-unread-subject
1988 "f" gnus-summary-first-unread-article
1989 "b" gnus-summary-best-unread-article
1990 "j" gnus-summary-goto-article
1991 "g" gnus-summary-goto-subject
1992 "l" gnus-summary-goto-last-article
1993 "o" gnus-summary-pop-article)
1994
1995(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1996 "k" gnus-summary-kill-thread
01c52d31 1997 "E" gnus-summary-expire-thread
23f87bed
MB
1998 "l" gnus-summary-lower-thread
1999 "i" gnus-summary-raise-thread
2000 "T" gnus-summary-toggle-threads
2001 "t" gnus-summary-rethread-current
2002 "^" gnus-summary-reparent-thread
01c52d31 2003 "\M-^" gnus-summary-reparent-children
23f87bed
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2004 "s" gnus-summary-show-thread
2005 "S" gnus-summary-show-all-threads
2006 "h" gnus-summary-hide-thread
2007 "H" gnus-summary-hide-all-threads
2008 "n" gnus-summary-next-thread
2009 "p" gnus-summary-prev-thread
2010 "u" gnus-summary-up-thread
2011 "o" gnus-summary-top-thread
2012 "d" gnus-summary-down-thread
2013 "#" gnus-uu-mark-thread
2014 "\M-#" gnus-uu-unmark-thread)
2015
2016(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
2017 "g" gnus-summary-prepare
2018 "c" gnus-summary-insert-cached-articles
01c52d31
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2019 "d" gnus-summary-insert-dormant-articles
2020 "t" gnus-summary-insert-ticked-articles)
23f87bed
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2021
2022(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
2023 "c" gnus-summary-catchup-and-exit
2024 "C" gnus-summary-catchup-all-and-exit
2025 "E" gnus-summary-exit-no-update
2026 "Q" gnus-summary-exit
2027 "Z" gnus-summary-exit
2028 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2029 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
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2030 "R" gnus-summary-reselect-current-group
2031 "G" gnus-summary-rescan-group
2032 "N" gnus-summary-next-group
2033 "s" gnus-summary-save-newsrc
2034 "P" gnus-summary-prev-group)
2035
2036(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2037 " " gnus-summary-next-page
2038 "n" gnus-summary-next-page
2039 "\177" gnus-summary-prev-page
2040 [delete] gnus-summary-prev-page
2041 "p" gnus-summary-prev-page
2042 "\r" gnus-summary-scroll-up
2043 "\M-\r" gnus-summary-scroll-down
2044 "<" gnus-summary-beginning-of-article
2045 ">" gnus-summary-end-of-article
2046 "b" gnus-summary-beginning-of-article
2047 "e" gnus-summary-end-of-article
2048 "^" gnus-summary-refer-parent-article
2049 "r" gnus-summary-refer-parent-article
2050 "D" gnus-summary-enter-digest-group
2051 "R" gnus-summary-refer-references
2052 "T" gnus-summary-refer-thread
2053 "g" gnus-summary-show-article
2054 "s" gnus-summary-isearch-article
2055 "P" gnus-summary-print-article
01c52d31 2056 "S" gnus-sticky-article
23f87bed
MB
2057 "M" gnus-mailing-list-insinuate
2058 "t" gnus-article-babel)
2059
2060(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2061 "b" gnus-article-add-buttons
2062 "B" gnus-article-add-buttons-to-head
2063 "o" gnus-article-treat-overstrike
2064 "e" gnus-article-emphasize
2065 "w" gnus-article-fill-cited-article
2066 "Q" gnus-article-fill-long-lines
01c52d31 2067 "L" gnus-article-toggle-truncate-lines
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2068 "C" gnus-article-capitalize-sentences
2069 "c" gnus-article-remove-cr
2070 "q" gnus-article-de-quoted-unreadable
2071 "6" gnus-article-de-base64-unreadable
2072 "Z" gnus-article-decode-HZ
01c52d31 2073 "A" gnus-article-treat-ansi-sequences
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2074 "h" gnus-article-wash-html
2075 "u" gnus-article-unsplit-urls
2076 "s" gnus-summary-force-verify-and-decrypt
2077 "f" gnus-article-display-x-face
2078 "l" gnus-summary-stop-page-breaking
2079 "r" gnus-summary-caesar-message
2080 "m" gnus-summary-morse-message
2081 "t" gnus-summary-toggle-header
2082 "g" gnus-treat-smiley
2083 "v" gnus-summary-verbose-headers
2084 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2085 "p" gnus-article-verify-x-pgp-sig
01c52d31
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2086 "d" gnus-article-treat-dumbquotes
2087 "i" gnus-summary-idna-message)
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2088
2089(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2090 ;; mnemonic: deuglif*Y*
2091 "u" gnus-article-outlook-unwrap-lines
2092 "a" gnus-article-outlook-repair-attribution
2093 "c" gnus-article-outlook-rearrange-citation
2094 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2095
2096(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2097 "a" gnus-article-hide
2098 "h" gnus-article-hide-headers
2099 "b" gnus-article-hide-boring-headers
2100 "s" gnus-article-hide-signature
2101 "c" gnus-article-hide-citation
2102 "C" gnus-article-hide-citation-in-followups
2103 "l" gnus-article-hide-list-identifiers
2104 "B" gnus-article-strip-banner
2105 "P" gnus-article-hide-pem
2106 "\C-c" gnus-article-hide-citation-maybe)
2107
2108(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2109 "a" gnus-article-highlight
2110 "h" gnus-article-highlight-headers
2111 "c" gnus-article-highlight-citation
2112 "s" gnus-article-highlight-signature)
2113
2114(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2115 "f" gnus-article-treat-fold-headers
2116 "u" gnus-article-treat-unfold-headers
2117 "n" gnus-article-treat-fold-newsgroups)
2118
2119(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2120 "x" gnus-article-display-x-face
2121 "d" gnus-article-display-face
2122 "s" gnus-treat-smiley
2123 "D" gnus-article-remove-images
25f28806 2124 "W" gnus-html-show-images
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2125 "f" gnus-treat-from-picon
2126 "m" gnus-treat-mail-picon
2127 "n" gnus-treat-newsgroups-picon)
2128
2129(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2130 "w" gnus-article-decode-mime-words
2131 "c" gnus-article-decode-charset
2132 "v" gnus-mime-view-all-parts
2133 "b" gnus-article-view-part)
2134
2135(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2136 "z" gnus-article-date-ut
2137 "u" gnus-article-date-ut
2138 "l" gnus-article-date-local
2139 "p" gnus-article-date-english
2140 "e" gnus-article-date-lapsed
2141 "o" gnus-article-date-original
2142 "i" gnus-article-date-iso8601
2143 "s" gnus-article-date-user)
2144
2145(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2146 "t" gnus-article-remove-trailing-blank-lines
2147 "l" gnus-article-strip-leading-blank-lines
2148 "m" gnus-article-strip-multiple-blank-lines
2149 "a" gnus-article-strip-blank-lines
2150 "A" gnus-article-strip-all-blank-lines
2151 "s" gnus-article-strip-leading-space
2152 "e" gnus-article-strip-trailing-space
2153 "w" gnus-article-remove-leading-whitespace)
2154
2155(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2156 "v" gnus-version
2157 "f" gnus-summary-fetch-faq
2158 "d" gnus-summary-describe-group
2159 "h" gnus-summary-describe-briefly
2160 "i" gnus-info-find-node
2161 "c" gnus-group-fetch-charter
2162 "C" gnus-group-fetch-control)
2163
2164(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2165 "e" gnus-summary-expire-articles
2166 "\M-\C-e" gnus-summary-expire-articles-now
2167 "\177" gnus-summary-delete-article
2168 [delete] gnus-summary-delete-article
2169 [backspace] gnus-summary-delete-article
2170 "m" gnus-summary-move-article
2171 "r" gnus-summary-respool-article
2172 "w" gnus-summary-edit-article
2173 "c" gnus-summary-copy-article
2174 "B" gnus-summary-crosspost-article
2175 "q" gnus-summary-respool-query
2176 "t" gnus-summary-respool-trace
2177 "i" gnus-summary-import-article
2178 "I" gnus-summary-create-article
2179 "p" gnus-summary-article-posted-p)
2180
2181(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2182 "o" gnus-summary-save-article
2183 "m" gnus-summary-save-article-mail
2184 "F" gnus-summary-write-article-file
2185 "r" gnus-summary-save-article-rmail
2186 "f" gnus-summary-save-article-file
2187 "b" gnus-summary-save-article-body-file
26c9afc3 2188 "B" gnus-summary-write-article-body-file
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2189 "h" gnus-summary-save-article-folder
2190 "v" gnus-summary-save-article-vm
2191 "p" gnus-summary-pipe-output
c4d82de8 2192 "P" gnus-summary-muttprint)
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2193
2194(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2195 "b" gnus-summary-display-buttonized
2196 "m" gnus-summary-repair-multipart
2197 "v" gnus-article-view-part
2198 "o" gnus-article-save-part
01c52d31
MB
2199 "O" gnus-article-save-part-and-strip
2200 "r" gnus-article-replace-part
2201 "d" gnus-article-delete-part
2202 "t" gnus-article-view-part-as-type
2203 "j" gnus-article-jump-to-part
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2204 "c" gnus-article-copy-part
2205 "C" gnus-article-view-part-as-charset
2206 "e" gnus-article-view-part-externally
01c52d31 2207 "H" gnus-article-browse-html-article
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2208 "E" gnus-article-encrypt-body
2209 "i" gnus-article-inline-part
2210 "|" gnus-article-pipe-part)
2211
2212(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2213 "p" gnus-summary-mark-as-processable
2214 "u" gnus-summary-unmark-as-processable
2215 "U" gnus-summary-unmark-all-processable
2216 "v" gnus-uu-mark-over
2217 "s" gnus-uu-mark-series
2218 "r" gnus-uu-mark-region
2219 "g" gnus-uu-unmark-region
2220 "R" gnus-uu-mark-by-regexp
2221 "G" gnus-uu-unmark-by-regexp
2222 "t" gnus-uu-mark-thread
2223 "T" gnus-uu-unmark-thread
2224 "a" gnus-uu-mark-all
2225 "b" gnus-uu-mark-buffer
2226 "S" gnus-uu-mark-sparse
2227 "k" gnus-summary-kill-process-mark
2228 "y" gnus-summary-yank-process-mark
2229 "w" gnus-summary-save-process-mark
2230 "i" gnus-uu-invert-processable)
2231
2232(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2233 ;;"x" gnus-uu-extract-any
2234 "m" gnus-summary-save-parts
2235 "u" gnus-uu-decode-uu
2236 "U" gnus-uu-decode-uu-and-save
2237 "s" gnus-uu-decode-unshar
2238 "S" gnus-uu-decode-unshar-and-save
2239 "o" gnus-uu-decode-save
2240 "O" gnus-uu-decode-save
2241 "b" gnus-uu-decode-binhex
2242 "B" gnus-uu-decode-binhex
b890d447 2243 "Y" gnus-uu-decode-yenc
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2244 "p" gnus-uu-decode-postscript
2245 "P" gnus-uu-decode-postscript-and-save)
2246
2247(gnus-define-keys
2248 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2249 "u" gnus-uu-decode-uu-view
2250 "U" gnus-uu-decode-uu-and-save-view
2251 "s" gnus-uu-decode-unshar-view
2252 "S" gnus-uu-decode-unshar-and-save-view
2253 "o" gnus-uu-decode-save-view
2254 "O" gnus-uu-decode-save-view
2255 "b" gnus-uu-decode-binhex-view
2256 "B" gnus-uu-decode-binhex-view
2257 "p" gnus-uu-decode-postscript-view
2258 "P" gnus-uu-decode-postscript-and-save-view)
2259
2260(defvar gnus-article-post-menu nil)
2261
2262(defconst gnus-summary-menu-maxlen 20)
2263
2264(defun gnus-summary-menu-split (menu)
2265 ;; If we have lots of elements, divide them into groups of 20
2266 ;; and make a pane (or submenu) for each one.
2267 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2268 (let ((menu menu) sublists next
2269 (i 1))
2270 (while menu
2271 ;; Pull off the next gnus-summary-menu-maxlen elements
2272 ;; and make them the next element of sublist.
2273 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2274 (if next
2275 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2276 nil))
2277 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2278 (aref (car (last menu)) 0)) menu)
2279 sublists))
2280 (setq i (1+ i))
2281 (setq menu next))
2282 (nreverse sublists))
2283 ;; Few elements--put them all in one pane.
2284 menu))
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LMI
2285
2286(defun gnus-summary-make-menu-bar ()
2287 (gnus-turn-off-edit-menu 'summary)
2288
2289 (unless (boundp 'gnus-summary-misc-menu)
2290
2291 (easy-menu-define
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2292 gnus-summary-kill-menu gnus-summary-mode-map ""
2293 (cons
2294 "Score"
2295 (nconc
2296 (list
2297 ["Customize" gnus-score-customize t])
2298 (gnus-make-score-map 'increase)
2299 (gnus-make-score-map 'lower)
2300 '(("Mark"
2301 ["Kill below" gnus-summary-kill-below t]
2302 ["Mark above" gnus-summary-mark-above t]
2303 ["Tick above" gnus-summary-tick-above t]
2304 ["Clear above" gnus-summary-clear-above t])
2305 ["Current score" gnus-summary-current-score t]
2306 ["Set score" gnus-summary-set-score t]
2307 ["Switch current score file..." gnus-score-change-score-file t]
2308 ["Set mark below..." gnus-score-set-mark-below t]
2309 ["Set expunge below..." gnus-score-set-expunge-below t]
2310 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2311 ["Edit score file..." gnus-score-edit-file t]
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2312 ["Trace score" gnus-score-find-trace t]
2313 ["Find words" gnus-score-find-favourite-words t]
2314 ["Rescore buffer" gnus-summary-rescore t]
2315 ["Increase score..." gnus-summary-increase-score t]
2316 ["Lower score..." gnus-summary-lower-score t]))))
2317
2318 ;; Define both the Article menu in the summary buffer and the
2319 ;; equivalent Commands menu in the article buffer here for
2320 ;; consistency.
6748645f 2321 (let ((innards
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2322 `(("Hide"
2323 ["All" gnus-article-hide t]
2324 ["Headers" gnus-article-hide-headers t]
2325 ["Signature" gnus-article-hide-signature t]
2326 ["Citation" gnus-article-hide-citation t]
16409b0b 2327 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2328 ["Banner" gnus-article-strip-banner t]
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2329 ["Boring headers" gnus-article-hide-boring-headers t])
2330 ("Highlight"
2331 ["All" gnus-article-highlight t]
2332 ["Headers" gnus-article-highlight-headers t]
2333 ["Signature" gnus-article-highlight-signature t]
2334 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2335 ("MIME"
2336 ["Words" gnus-article-decode-mime-words t]
2337 ["Charset" gnus-article-decode-charset t]
2338 ["QP" gnus-article-de-quoted-unreadable t]
2339 ["Base64" gnus-article-de-base64-unreadable t]
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2340 ["View MIME buttons" gnus-summary-display-buttonized t]
2341 ["View all" gnus-mime-view-all-parts t]
2342 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2343 ["Encrypt body" gnus-article-encrypt-body
2344 :active (not (gnus-group-read-only-p))
2345 ,@(if (featurep 'xemacs) nil
2346 '(:help "Encrypt the message body on disk"))]
2347 ["Extract all parts..." gnus-summary-save-parts t]
2348 ("Multipart"
2349 ["Repair multipart" gnus-summary-repair-multipart t]
2350 ["Pipe part..." gnus-article-pipe-part t]
2351 ["Inline part" gnus-article-inline-part t]
01c52d31 2352 ["View part as type..." gnus-article-view-part-as-type t]
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2353 ["Encrypt body" gnus-article-encrypt-body
2354 :active (not (gnus-group-read-only-p))
2355 ,@(if (featurep 'xemacs) nil
2356 '(:help "Encrypt the message body on disk"))]
2357 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2358 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2359 ["View part with charset..." gnus-article-view-part-as-charset t]
2360 ["Copy part" gnus-article-copy-part t]
2361 ["Save part..." gnus-article-save-part t]
2362 ["View part" gnus-article-view-part t]))
2363 ("Date"
2364 ["Local" gnus-article-date-local t]
2365 ["ISO8601" gnus-article-date-iso8601 t]
2366 ["UT" gnus-article-date-ut t]
2367 ["Original" gnus-article-date-original t]
2368 ["Lapsed" gnus-article-date-lapsed t]
2369 ["User-defined" gnus-article-date-user t])
2370 ("Display"
2371 ["Remove images" gnus-article-remove-images t]
2372 ["Toggle smiley" gnus-treat-smiley t]
2373 ["Show X-Face" gnus-article-display-x-face t]
2374 ["Show picons in From" gnus-treat-from-picon t]
2375 ["Show picons in mail headers" gnus-treat-mail-picon t]
2376 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2377 ("View as different encoding"
2378 ,@(gnus-summary-menu-split
2379 (mapcar
2380 (lambda (cs)
2381 ;; Since easymenu under Emacs doesn't allow
2382 ;; lambda forms for menu commands, we should
2383 ;; provide intern'ed function symbols.
2384 (let ((command (intern (format "\
2385gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2386 (fset command
2387 `(lambda ()
2388 (interactive)
2389 (let ((gnus-summary-show-article-charset-alist
2390 '((1 . ,cs))))
2391 (gnus-summary-show-article 1))))
2392 `[,(symbol-name cs) ,command t]))
2393 (sort (if (fboundp 'coding-system-list)
2394 (coding-system-list)
2395 (mapcar 'car mm-mime-mule-charset-alist))
2396 'string<)))))
2397 ("Washing"
2398 ("Remove Blanks"
2399 ["Leading" gnus-article-strip-leading-blank-lines t]
2400 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2401 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2402 ["All of the above" gnus-article-strip-blank-lines t]
2403 ["All" gnus-article-strip-all-blank-lines t]
2404 ["Leading space" gnus-article-strip-leading-space t]
2405 ["Trailing space" gnus-article-strip-trailing-space t]
2406 ["Leading space in headers"
2407 gnus-article-remove-leading-whitespace t])
2408 ["Overstrike" gnus-article-treat-overstrike t]
2409 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2410 ["Emphasis" gnus-article-emphasize t]
2411 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2412 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2413 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2414 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2415 ["Remove CR" gnus-article-remove-cr t]
2416 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2417 ["Base64" gnus-article-de-base64-unreadable t]
2418 ["Rot 13" gnus-summary-caesar-message
2419 ,@(if (featurep 'xemacs) '(t)
2420 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2421 ["De-IDNA" gnus-summary-idna-message t]
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2422 ["Morse decode" gnus-summary-morse-message t]
2423 ["Unix pipe..." gnus-summary-pipe-message t]
2424 ["Add buttons" gnus-article-add-buttons t]
2425 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2426 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2427 ["Verbose header" gnus-summary-verbose-headers t]
2428 ["Toggle header" gnus-summary-toggle-header t]
2429 ["Unfold headers" gnus-article-treat-unfold-headers t]
2430 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2431 ["Html" gnus-article-wash-html t]
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2432 ["Unsplit URLs" gnus-article-unsplit-urls t]
2433 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2434 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2435 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
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2436 ("(Outlook) Deuglify"
2437 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2438 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2439 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2440 ["Full (Outlook) deuglify"
2441 gnus-article-outlook-deuglify-article t])
2442 )
2443 ("Output"
2444 ["Save in default format..." gnus-summary-save-article
2445 ,@(if (featurep 'xemacs) '(t)
2446 '(:help "Save article using default method"))]
2447 ["Save in file..." gnus-summary-save-article-file
2448 ,@(if (featurep 'xemacs) '(t)
2449 '(:help "Save article in file"))]
2450 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2451 ["Save in MH folder..." gnus-summary-save-article-folder t]
2452 ["Save in VM folder..." gnus-summary-save-article-vm t]
2453 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2454 ["Save body in file..." gnus-summary-save-article-body-file t]
2455 ["Pipe through a filter..." gnus-summary-pipe-output t]
23f87bed 2456 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
MB
2457 ["Print" gnus-summary-print-article
2458 ,@(if (featurep 'xemacs) '(t)
2459 '(:help "Generate and print a PostScript image"))])
2460 ("Copy, move,... (Backend)"
707f2b38 2461 ,@(if (featurep 'xemacs) nil
531e5812 2462 '(:help "Copying, moving, expiring articles..."))
23f87bed
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2463 ["Respool article..." gnus-summary-respool-article t]
2464 ["Move article..." gnus-summary-move-article
2465 (gnus-check-backend-function
2466 'request-move-article gnus-newsgroup-name)]
2467 ["Copy article..." gnus-summary-copy-article t]
2468 ["Crosspost article..." gnus-summary-crosspost-article
2469 (gnus-check-backend-function
2470 'request-replace-article gnus-newsgroup-name)]
2471 ["Import file..." gnus-summary-import-article
2472 (gnus-check-backend-function
2473 'request-accept-article gnus-newsgroup-name)]
2474 ["Create article..." gnus-summary-create-article
2475 (gnus-check-backend-function
2476 'request-accept-article gnus-newsgroup-name)]
2477 ["Check if posted" gnus-summary-article-posted-p t]
2478 ["Edit article" gnus-summary-edit-article
2479 (not (gnus-group-read-only-p))]
2480 ["Delete article" gnus-summary-delete-article
2481 (gnus-check-backend-function
2482 'request-expire-articles gnus-newsgroup-name)]
2483 ["Query respool" gnus-summary-respool-query t]
6748645f 2484 ["Trace respool" gnus-summary-respool-trace t]
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2485 ["Delete expirable articles" gnus-summary-expire-articles-now
2486 (gnus-check-backend-function
2487 'request-expire-articles gnus-newsgroup-name)])
2488 ("Extract"
2489 ["Uudecode" gnus-uu-decode-uu
2490 ,@(if (featurep 'xemacs) '(t)
2491 '(:help "Decode uuencoded article(s)"))]
2492 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2493 ["Unshar" gnus-uu-decode-unshar t]
2494 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2495 ["Save" gnus-uu-decode-save t]
2496 ["Binhex" gnus-uu-decode-binhex t]
2497 ["Postscript" gnus-uu-decode-postscript t]
2498 ["All MIME parts" gnus-summary-save-parts t])
2499 ("Cache"
2500 ["Enter article" gnus-cache-enter-article t]
2501 ["Remove article" gnus-cache-remove-article t])
16409b0b 2502 ["Translate" gnus-article-babel t]
23f87bed 2503 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2504 ["Make article buffer sticky" gnus-sticky-article t]
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2505 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2506 ["Isearch article..." gnus-summary-isearch-article t]
2507 ["Beginning of the article" gnus-summary-beginning-of-article t]
2508 ["End of the article" gnus-summary-end-of-article t]
2509 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2510 ["Fetch referenced articles" gnus-summary-refer-references t]
2511 ["Fetch current thread" gnus-summary-refer-thread t]
2512 ["Fetch article with id..." gnus-summary-refer-article t]
2513 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2514 ["Redisplay" gnus-summary-show-article t]
2515 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2516 (easy-menu-define
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MB
2517 gnus-summary-article-menu gnus-summary-mode-map ""
2518 (cons "Article" innards))
6748645f 2519
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SZ
2520 (if (not (keymapp gnus-summary-article-menu))
2521 (easy-menu-define
2522 gnus-article-commands-menu gnus-article-mode-map ""
2523 (cons "Commands" innards))
2524 ;; in Emacs, don't share menu.
a1506d29 2525 (setq gnus-article-commands-menu
1653df0f
SZ
2526 (copy-keymap gnus-summary-article-menu))
2527 (define-key gnus-article-mode-map [menu-bar commands]
2528 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2529
2530 (easy-menu-define
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MB
2531 gnus-summary-thread-menu gnus-summary-mode-map ""
2532 '("Threads"
2533 ["Find all messages in thread" gnus-summary-refer-thread t]
2534 ["Toggle threading" gnus-summary-toggle-threads t]
2535 ["Hide threads" gnus-summary-hide-all-threads t]
2536 ["Show threads" gnus-summary-show-all-threads t]
2537 ["Hide thread" gnus-summary-hide-thread t]
2538 ["Show thread" gnus-summary-show-thread t]
2539 ["Go to next thread" gnus-summary-next-thread t]
2540 ["Go to previous thread" gnus-summary-prev-thread t]
2541 ["Go down thread" gnus-summary-down-thread t]
2542 ["Go up thread" gnus-summary-up-thread t]
2543 ["Top of thread" gnus-summary-top-thread t]
2544 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2545 ["Mark thread as expired" gnus-summary-expire-thread t]
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2546 ["Lower thread score" gnus-summary-lower-thread t]
2547 ["Raise thread score" gnus-summary-raise-thread t]
2548 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2549
2550 (easy-menu-define
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MB
2551 gnus-summary-post-menu gnus-summary-mode-map ""
2552 `("Post"
2553 ["Send a message (mail or news)" gnus-summary-post-news
2554 ,@(if (featurep 'xemacs) '(t)
531e5812 2555 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2556 ["Followup" gnus-summary-followup
2557 ,@(if (featurep 'xemacs) '(t)
2558 '(:help "Post followup to this article"))]
2559 ["Followup and yank" gnus-summary-followup-with-original
2560 ,@(if (featurep 'xemacs) '(t)
2561 '(:help "Post followup to this article, quoting its contents"))]
2562 ["Supersede article" gnus-summary-supersede-article t]
2563 ["Cancel article" gnus-summary-cancel-article
2564 ,@(if (featurep 'xemacs) '(t)
2565 '(:help "Cancel an article you posted"))]
2566 ["Reply" gnus-summary-reply t]
2567 ["Reply and yank" gnus-summary-reply-with-original t]
2568 ["Wide reply" gnus-summary-wide-reply t]
2569 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2570 ,@(if (featurep 'xemacs) '(t)
2571 '(:help "Mail a reply, quoting this article"))]
2572 ["Very wide reply" gnus-summary-very-wide-reply t]
2573 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2574 ,@(if (featurep 'xemacs) '(t)
2575 '(:help "Mail a very wide reply, quoting this article"))]
2576 ["Mail forward" gnus-summary-mail-forward t]
2577 ["Post forward" gnus-summary-post-forward t]
2578 ["Digest and mail" gnus-uu-digest-mail-forward t]
2579 ["Digest and post" gnus-uu-digest-post-forward t]
2580 ["Resend message" gnus-summary-resend-message t]
2581 ["Resend message edit" gnus-summary-resend-message-edit t]
2582 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2583 ["Send a mail" gnus-summary-mail-other-window t]
2584 ["Create a local message" gnus-summary-news-other-window t]
2585 ["Uuencode and post" gnus-uu-post-news
2586 ,@(if (featurep 'xemacs) '(t)
2587 '(:help "Post a uuencoded article"))]
2588 ["Followup via news" gnus-summary-followup-to-mail t]
2589 ["Followup via news and yank"
2590 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2591 ["Strip signature on reply"
2592 (lambda ()
2593 (interactive)
2594 (if (not (memq message-cite-function
2595 '(message-cite-original-without-signature
2596 message-cite-original)))
2597 ;; Stupid workaround for XEmacs not honoring :visible.
2598 (message "Can't toggle this value of `message-cite-function'")
2599 (setq message-cite-function
2600 (if (eq message-cite-function
2601 'message-cite-original-without-signature)
2602 'message-cite-original
2603 'message-cite-original-without-signature))))
2604 ;; XEmacs barfs on :visible.
2605 ,@(if (featurep 'xemacs) nil
2606 '(:visible (memq message-cite-function
2607 '(message-cite-original-without-signature
2608 message-cite-original))))
2609 :style toggle
2610 :selected (eq message-cite-function
2611 'message-cite-original-without-signature)
2612 ,@(if (featurep 'xemacs) nil
2613 '(:help "Strip signature from cited article when replying."))]
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MB
2614 ;;("Draft"
2615 ;;["Send" gnus-summary-send-draft t]
2616 ;;["Send bounced" gnus-resend-bounced-mail t])
2617 ))
2618
2619 (cond
2620 ((not (keymapp gnus-summary-post-menu))
2621 (setq gnus-article-post-menu gnus-summary-post-menu))
2622 ((not gnus-article-post-menu)
2623 ;; Don't share post menu.
2624 (setq gnus-article-post-menu
2625 (copy-keymap gnus-summary-post-menu))))
2626 (define-key gnus-article-mode-map [menu-bar post]
2627 (cons "Post" gnus-article-post-menu))
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LMI
2628
2629 (easy-menu-define
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2630 gnus-summary-misc-menu gnus-summary-mode-map ""
2631 `("Gnus"
2632 ("Mark Read"
2633 ["Mark as read" gnus-summary-mark-as-read-forward t]
2634 ["Mark same subject and select"
2635 gnus-summary-kill-same-subject-and-select t]
2636 ["Mark same subject" gnus-summary-kill-same-subject t]
2637 ["Catchup" gnus-summary-catchup
2638 ,@(if (featurep 'xemacs) '(t)
2639 '(:help "Mark unread articles in this group as read"))]
2640 ["Catchup all" gnus-summary-catchup-all t]
2641 ["Catchup to here" gnus-summary-catchup-to-here t]
2642 ["Catchup from here" gnus-summary-catchup-from-here t]
2643 ["Catchup region" gnus-summary-mark-region-as-read
2644 (gnus-mark-active-p)]
2645 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2646 ("Mark Various"
2647 ["Tick" gnus-summary-tick-article-forward t]
2648 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2649 ["Remove marks" gnus-summary-clear-mark-forward t]
2650 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2651 ["Set bookmark" gnus-summary-set-bookmark t]
2652 ["Remove bookmark" gnus-summary-remove-bookmark t])
2653 ("Limit to"
2654 ["Marks..." gnus-summary-limit-to-marks t]
2655 ["Subject..." gnus-summary-limit-to-subject t]
2656 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2657 ["Recipient..." gnus-summary-limit-to-recipient t]
2658 ["Address..." gnus-summary-limit-to-address t]
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MB
2659 ["Age..." gnus-summary-limit-to-age t]
2660 ["Extra..." gnus-summary-limit-to-extra t]
2661 ["Score..." gnus-summary-limit-to-score t]
2662 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2663 ["Unread" gnus-summary-limit-to-unread t]
2664 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2665 ["Singletons" gnus-summary-limit-to-singletons t]
2666 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2667 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2668 ["Next or process marked articles" gnus-summary-limit-to-articles t]
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MB
2669 ["Pop limit" gnus-summary-pop-limit t]
2670 ["Show dormant" gnus-summary-limit-include-dormant t]
2671 ["Hide childless dormant"
2672 gnus-summary-limit-exclude-childless-dormant t]
2673 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2674 ["Hide marked" gnus-summary-limit-exclude-marks t]
2675 ["Show expunged" gnus-summary-limit-include-expunged t])
2676 ("Process Mark"
2677 ["Set mark" gnus-summary-mark-as-processable t]
2678 ["Remove mark" gnus-summary-unmark-as-processable t]
2679 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2680 ["Invert marks" gnus-uu-invert-processable t]
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MB
2681 ["Mark above" gnus-uu-mark-over t]
2682 ["Mark series" gnus-uu-mark-series t]
2683 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2684 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2685 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2686 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2687 ["Mark all" gnus-uu-mark-all t]
2688 ["Mark buffer" gnus-uu-mark-buffer t]
2689 ["Mark sparse" gnus-uu-mark-sparse t]
2690 ["Mark thread" gnus-uu-mark-thread t]
2691 ["Unmark thread" gnus-uu-unmark-thread t]
2692 ("Process Mark Sets"
2693 ["Kill" gnus-summary-kill-process-mark t]
2694 ["Yank" gnus-summary-yank-process-mark
2695 gnus-newsgroup-process-stack]
2696 ["Save" gnus-summary-save-process-mark t]
2697 ["Run command on marked..." gnus-summary-universal-argument t]))
ec7995fa 2698 ("Registry Marks")
23f87bed
MB
2699 ("Scroll article"
2700 ["Page forward" gnus-summary-next-page
2701 ,@(if (featurep 'xemacs) '(t)
2702 '(:help "Show next page of article"))]
2703 ["Page backward" gnus-summary-prev-page
2704 ,@(if (featurep 'xemacs) '(t)
2705 '(:help "Show previous page of article"))]
2706 ["Line forward" gnus-summary-scroll-up t])
2707 ("Move"
2708 ["Next unread article" gnus-summary-next-unread-article t]
2709 ["Previous unread article" gnus-summary-prev-unread-article t]
2710 ["Next article" gnus-summary-next-article t]
2711 ["Previous article" gnus-summary-prev-article t]
2712 ["Next unread subject" gnus-summary-next-unread-subject t]
2713 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2714 ["Next article same subject" gnus-summary-next-same-subject t]
2715 ["Previous article same subject" gnus-summary-prev-same-subject t]
2716 ["First unread article" gnus-summary-first-unread-article t]
2717 ["Best unread article" gnus-summary-best-unread-article t]
2718 ["Go to subject number..." gnus-summary-goto-subject t]
2719 ["Go to article number..." gnus-summary-goto-article t]
2720 ["Go to the last article" gnus-summary-goto-last-article t]
2721 ["Pop article off history" gnus-summary-pop-article t])
2722 ("Sort"
2723 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2724 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2725 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2726 ["Sort by recipient" gnus-summary-sort-by-recipient t]
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MB
2727 ["Sort by subject" gnus-summary-sort-by-subject t]
2728 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2729 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
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MB
2730 ["Sort by score" gnus-summary-sort-by-score t]
2731 ["Sort by lines" gnus-summary-sort-by-lines t]
2732 ["Sort by characters" gnus-summary-sort-by-chars t]
2733 ["Randomize" gnus-summary-sort-by-random t]
2734 ["Original sort" gnus-summary-sort-by-original t])
2735 ("Help"
2736 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2737 ["Describe group" gnus-summary-describe-group t]
2738 ["Fetch charter" gnus-group-fetch-charter
2739 ,@(if (featurep 'xemacs) nil
2740 '(:help "Display the charter of the current group"))]
2741 ["Fetch control message" gnus-group-fetch-control
2742 ,@(if (featurep 'xemacs) nil
2743 '(:help "Display the archived control message for the current group"))]
2744 ["Read manual" gnus-info-find-node t])
2745 ("Modes"
2746 ["Pick and read" gnus-pick-mode t]
2747 ["Binary" gnus-binary-mode t])
2748 ("Regeneration"
2749 ["Regenerate" gnus-summary-prepare t]
2750 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2751 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2752 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
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2753 ["Toggle threading" gnus-summary-toggle-threads t])
2754 ["See old articles" gnus-summary-insert-old-articles t]
2755 ["See new articles" gnus-summary-insert-new-articles t]
2756 ["Filter articles..." gnus-summary-execute-command t]
2757 ["Run command on articles..." gnus-summary-universal-argument t]
2758 ["Search articles forward..." gnus-summary-search-article-forward t]
2759 ["Search articles backward..." gnus-summary-search-article-backward t]
2760 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2761 ["Expand window" gnus-summary-expand-window t]
2762 ["Expire expirable articles" gnus-summary-expire-articles
2763 (gnus-check-backend-function
2764 'request-expire-articles gnus-newsgroup-name)]
2765 ["Edit local kill file" gnus-summary-edit-local-kill t]
2766 ["Edit main kill file" gnus-summary-edit-global-kill t]
2767 ["Edit group parameters" gnus-summary-edit-parameters t]
2768 ["Customize group parameters" gnus-summary-customize-parameters t]
2769 ["Send a bug report" gnus-bug t]
2770 ("Exit"
2771 ["Catchup and exit" gnus-summary-catchup-and-exit
2772 ,@(if (featurep 'xemacs) '(t)
2773 '(:help "Mark unread articles in this group as read, then exit"))]
2774 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2775 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2776 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
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MB
2777 ["Exit group" gnus-summary-exit
2778 ,@(if (featurep 'xemacs) '(t)
2779 '(:help "Exit current group, return to group selection mode"))]
2780 ["Exit group without updating" gnus-summary-exit-no-update t]
2781 ["Exit and goto next group" gnus-summary-next-group t]
2782 ["Exit and goto prev group" gnus-summary-prev-group t]
2783 ["Reselect group" gnus-summary-reselect-current-group t]
2784 ["Rescan group" gnus-summary-rescan-group t]
2785 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2786
6748645f 2787 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2788
60bd5589
DL
2789(defvar gnus-summary-tool-bar-map nil)
2790
18c06a99
RS
2791;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2792;; affect _new_ message buffers. We might add a function that walks thru all
2793;; summary-mode buffers and force the update.
2794(defun gnus-summary-tool-bar-update (&optional symbol value)
2795 "Update summary mode toolbar.
2796Setter function for custom variables."
2797 (setq-default gnus-summary-tool-bar-map nil)
2798 (when symbol
2799 ;; When used as ":set" function:
2800 (set-default symbol value))
2801 (when (gnus-buffer-live-p gnus-summary-buffer)
2802 (with-current-buffer gnus-summary-buffer
2803 (gnus-summary-make-tool-bar))))
2804
2805(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2806 'gnus-summary-tool-bar-gnome
2807 'gnus-summary-tool-bar-retro)
2808 "Specifies the Gnus summary tool bar.
2809
2810It can be either a list or a symbol refering to a list. See
2811`gmm-tool-bar-from-list' for the format of the list. The
2812default key map is `gnus-summary-mode-map'.
2813
2814Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2815`gnus-summary-tool-bar-retro'."
2816 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2817 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2818 (repeat :tag "User defined list" gmm-tool-bar-item)
2819 (symbol))
330f707b 2820 :version "23.1" ;; No Gnus
18c06a99
RS
2821 :initialize 'custom-initialize-default
2822 :set 'gnus-summary-tool-bar-update
2823 :group 'gnus-summary)
2824
2825(defcustom gnus-summary-tool-bar-gnome
2826 '((gnus-summary-post-news "mail/compose" nil)
2827 (gnus-summary-insert-new-articles "mail/inbox" nil
2828 :visible (or (not gnus-agent)
2829 gnus-plugged))
2830 (gnus-summary-reply-with-original "mail/reply")
2831 (gnus-summary-reply "mail/reply" nil :visible nil)
2832 (gnus-summary-followup-with-original "mail/reply-all")
2833 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2834 (gnus-summary-mail-forward "mail/forward")
2835 (gnus-summary-save-article "mail/save")
2836 (gnus-summary-search-article-forward "search" nil :visible nil)
2837 (gnus-summary-print-article "print")
2838 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2839 ;; Some new commands that may need more suitable icons:
2840 (gnus-summary-save-newsrc "save" nil :visible nil)
2841 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2842 (gnus-summary-prev-article "left-arrow")
2843 (gnus-summary-next-article "right-arrow")
2844 (gnus-summary-next-page "next-page")
2845 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2846 ;;
2847 ;; Maybe some sort-by-... could be added:
2848 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2849 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2850 (gnus-summary-mark-as-expirable
2851 "delete" nil
2852 :visible (gnus-check-backend-function 'request-expire-articles
2853 gnus-newsgroup-name))
2854 (gnus-summary-mark-as-spam
2855 "mail/spam" t
2856 :visible (and (fboundp 'spam-group-ham-contents-p)
2857 (spam-group-ham-contents-p gnus-newsgroup-name))
2858 :help "Mark as spam")
2859 (gnus-summary-mark-as-read-forward
2860 "mail/not-spam" nil
2861 :visible (and (fboundp 'spam-group-spam-contents-p)
2862 (spam-group-spam-contents-p gnus-newsgroup-name)))
2863 ;;
2864 (gnus-summary-exit "exit")
2865 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2866 (gnus-info-find-node "help"))
2867 "List of functions for the summary tool bar (GNOME style).
2868
2869See `gmm-tool-bar-from-list' for the format of the list."
2870 :type '(repeat gmm-tool-bar-item)
330f707b 2871 :version "23.1" ;; No Gnus
18c06a99
RS
2872 :initialize 'custom-initialize-default
2873 :set 'gnus-summary-tool-bar-update
2874 :group 'gnus-summary)
2875
2876(defcustom gnus-summary-tool-bar-retro
2877 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2878 (gnus-summary-next-unread-article "gnus/next-ur")
2879 (gnus-summary-post-news "gnus/post")
2880 (gnus-summary-followup-with-original "gnus/fuwo")
2881 (gnus-summary-followup "gnus/followup")
2882 (gnus-summary-reply-with-original "gnus/reply-wo")
2883 (gnus-summary-reply "gnus/reply")
2884 (gnus-summary-caesar-message "gnus/rot13")
2885 (gnus-uu-decode-uu "gnus/uu-decode")
2886 (gnus-summary-save-article-file "gnus/save-aif")
2887 (gnus-summary-save-article "gnus/save-art")
2888 (gnus-uu-post-news "gnus/uu-post")
2889 (gnus-summary-catchup "gnus/catchup")
2890 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2891 (gnus-summary-exit "gnus/exit-summ")
2892 ;; Some new command that may need more suitable icons:
2893 (gnus-summary-print-article "gnus/print" nil :visible nil)
2894 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2895 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2896 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2897 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2898 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2899 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2900 ;;
2901 (gnus-info-find-node "gnus/help" nil :visible nil))
2902 "List of functions for the summary tool bar (retro look).
2903
2904See `gmm-tool-bar-from-list' for the format of the list."
2905 :type '(repeat gmm-tool-bar-item)
330f707b 2906 :version "23.1" ;; No Gnus
18c06a99
RS
2907 :initialize 'custom-initialize-default
2908 :set 'gnus-summary-tool-bar-update
2909 :group 'gnus-summary)
2910
2911(defcustom gnus-summary-tool-bar-zap-list t
2912 "List of icon items from the global tool bar.
2913These items are not displayed in the Gnus summary mode tool bar.
2914
2915See `gmm-tool-bar-from-list' for the format of the list."
2916 :type 'gmm-tool-bar-zap-list
330f707b 2917 :version "23.1" ;; No Gnus
18c06a99
RS
2918 :initialize 'custom-initialize-default
2919 :set 'gnus-summary-tool-bar-update
2920 :group 'gnus-summary)
2921
2922(defvar image-load-path)
f654fa04 2923(defvar tool-bar-map)
18c06a99
RS
2924
2925(defun gnus-summary-make-tool-bar (&optional force)
2926 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2927When FORCE, rebuild the tool bar."
2928 (when (and (not (featurep 'xemacs))
2929 (boundp 'tool-bar-mode)
2930 tool-bar-mode
2931 (or (not gnus-summary-tool-bar-map) force))
2932 (let* ((load-path
2933 (gmm-image-load-path-for-library "gnus"
2934 "mail/save.xpm"
2935 nil t))
2936 (image-load-path (cons (car load-path)
2937 (when (boundp 'image-load-path)
2938 image-load-path)))
2939 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2940 gnus-summary-tool-bar-zap-list
2941 'gnus-summary-mode-map)))
2942 (when map
2943 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2944 ;; uses it's value.
2945 (setq gnus-summary-tool-bar-map map))))
2946 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2947
eec82323
LMI
2948(defun gnus-score-set-default (var value)
2949 "A version of set that updates the GNU Emacs menu-bar."
2950 (set var value)
2951 ;; It is the message that forces the active status to be updated.
2952 (message ""))
2953
2954(defun gnus-make-score-map (type)
2955 "Make a summary score map of type TYPE."
2956 (if t
2957 nil
2958 (let ((headers '(("author" "from" string)
2959 ("subject" "subject" string)
2960 ("article body" "body" string)
2961 ("article head" "head" string)
2962 ("xref" "xref" string)
16409b0b 2963 ("extra header" "extra" string)
eec82323
LMI
2964 ("lines" "lines" number)
2965 ("followups to author" "followup" string)))
2966 (types '((number ("less than" <)
2967 ("greater than" >)
2968 ("equal" =))
2969 (string ("substring" s)
2970 ("exact string" e)
2971 ("fuzzy string" f)
2972 ("regexp" r))))
2973 (perms '(("temporary" (current-time-string))
2974 ("permanent" nil)
2975 ("immediate" now)))
2976 header)
2977 (list
2978 (apply
2979 'nconc
2980 (list
2981 (if (eq type 'lower)
2982 "Lower score"
2983 "Increase score"))
2984 (let (outh)
2985 (while headers
2986 (setq header (car headers))
2987 (setq outh
2988 (cons
2989 (apply
2990 'nconc
2991 (list (car header))
2992 (let ((ts (cdr (assoc (nth 2 header) types)))
2993 outt)
2994 (while ts
2995 (setq outt
2996 (cons
2997 (apply
2998 'nconc
2999 (list (caar ts))
3000 (let ((ps perms)
3001 outp)
3002 (while ps
3003 (setq outp
3004 (cons
3005 (vector
3006 (caar ps)
3007 (list
3008 'gnus-summary-score-entry
3009 (nth 1 header)
3010 (if (or (string= (nth 1 header)
3011 "head")
3012 (string= (nth 1 header)
3013 "body"))
3014 ""
3015 (list 'gnus-summary-header
3016 (nth 1 header)))
3017 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3018 (list 'gnus-score-delta-default
3019 nil)
eec82323
LMI
3020 (nth 1 (car ps))
3021 t)
3022 t)
3023 outp))
3024 (setq ps (cdr ps)))
3025 (list (nreverse outp))))
3026 outt))
3027 (setq ts (cdr ts)))
3028 (list (nreverse outt))))
3029 outh))
3030 (setq headers (cdr headers)))
3031 (list (nreverse outh))))))))
3032
704f1663
GM
3033
3034(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
398a825b 3035(defvar bookmark-make-record-function)
eec82323
LMI
3036\f
3037
3038(defun gnus-summary-mode (&optional group)
3039 "Major mode for reading articles.
3040
3041All normal editing commands are switched off.
3042\\<gnus-summary-mode-map>
3043Each line in this buffer represents one article. To read an
3044article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3045and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3046respectively.
3047
3048You can also post articles and send mail from this buffer. To
23f87bed 3049follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3050of an article, type `\\[gnus-summary-reply]'.
3051
3052There are approx. one gazillion commands you can execute in this
3053buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3054
3055The following commands are available:
3056
3057\\{gnus-summary-mode-map}"
3058 (interactive)
eec82323 3059 (kill-all-local-variables)
01c52d31
MB
3060 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3061 (gnus-summary-make-local-variables))
3062 (gnus-summary-make-local-variables)
3063 (setq gnus-newsgroup-name group)
60bd5589
DL
3064 (when (gnus-visual-p 'summary-menu 'menu)
3065 (gnus-summary-make-menu-bar)
3066 (gnus-summary-make-tool-bar))
eec82323
LMI
3067 (gnus-make-thread-indent-array)
3068 (gnus-simplify-mode-line)
3069 (setq major-mode 'gnus-summary-mode)
3070 (setq mode-name "Summary")
eec82323 3071 (use-local-map gnus-summary-mode-map)
16409b0b 3072 (buffer-disable-undo)
01c52d31
MB
3073 (setq buffer-read-only t ;Disable modification
3074 show-trailing-whitespace nil)
eec82323 3075 (setq truncate-lines t)
9bfd9a76 3076 (add-to-invisibility-spec '(gnus-sum . t))
eec82323
LMI
3077 (gnus-summary-set-display-table)
3078 (gnus-set-default-directory)
eec82323
LMI
3079 (make-local-variable 'gnus-summary-line-format)
3080 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3081 (make-local-variable 'gnus-summary-dummy-line-format)
3082 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3083 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3084 (gnus-make-local-hook 'pre-command-hook)
6748645f 3085 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3086 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3087 (turn-on-gnus-mailing-list-mode)
87545352 3088 (mm-enable-multibyte)
45be326a
TV
3089 (set (make-local-variable 'bookmark-make-record-function)
3090 'gnus-summary-bookmark-make-record)
eec82323
LMI
3091 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3092 (gnus-update-summary-mark-positions))
3093
3094(defun gnus-summary-make-local-variables ()
3095 "Make all the local summary buffer variables."
16409b0b
GM
3096 (let (global)
3097 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3098 (if (consp local)
3099 (progn
3100 (if (eq (cdr local) 'global)
3101 ;; Copy the global value of the variable.
3102 (setq global (symbol-value (car local)))
3103 ;; Use the value from the list.
3104 (setq global (eval (cdr local))))
16409b0b 3105 (set (make-local-variable (car local)) global))
eec82323 3106 ;; Simple nil-valued local variable.
16409b0b 3107 (set (make-local-variable local) nil)))))
eec82323
LMI
3108
3109(defun gnus-summary-clear-local-variables ()
3110 (let ((locals gnus-summary-local-variables))
3111 (while locals
3112 (if (consp (car locals))
01c52d31 3113 (and (symbolp (caar locals))
eec82323 3114 (set (caar locals) nil))
01c52d31 3115 (and (symbolp (car locals))
eec82323
LMI
3116 (set (car locals) nil)))
3117 (setq locals (cdr locals)))))
3118
3119;; Summary data functions.
3120
3121(defmacro gnus-data-number (data)
3122 `(car ,data))
3123
3124(defmacro gnus-data-set-number (data number)
3125 `(setcar ,data ,number))
3126
3127(defmacro gnus-data-mark (data)
3128 `(nth 1 ,data))
3129
3130(defmacro gnus-data-set-mark (data mark)
3131 `(setcar (nthcdr 1 ,data) ,mark))
3132
3133(defmacro gnus-data-pos (data)
3134 `(nth 2 ,data))
3135
3136(defmacro gnus-data-set-pos (data pos)
3137 `(setcar (nthcdr 2 ,data) ,pos))
3138
3139(defmacro gnus-data-header (data)
3140 `(nth 3 ,data))
3141
3142(defmacro gnus-data-set-header (data header)
3143 `(setf (nth 3 ,data) ,header))
3144
3145(defmacro gnus-data-level (data)
3146 `(nth 4 ,data))
3147
3148(defmacro gnus-data-unread-p (data)
3149 `(= (nth 1 ,data) gnus-unread-mark))
3150
3151(defmacro gnus-data-read-p (data)
3152 `(/= (nth 1 ,data) gnus-unread-mark))
3153
3154(defmacro gnus-data-pseudo-p (data)
3155 `(consp (nth 3 ,data)))
3156
3157(defmacro gnus-data-find (number)
3158 `(assq ,number gnus-newsgroup-data))
3159
3160(defmacro gnus-data-find-list (number &optional data)
3161 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3162 (memq (assq ,number bdata)
3163 bdata)))
3164
3165(defmacro gnus-data-make (number mark pos header level)
3166 `(list ,number ,mark ,pos ,header ,level))
3167
3168(defun gnus-data-enter (after-article number mark pos header level offset)
3169 (let ((data (gnus-data-find-list after-article)))
3170 (unless data
3171 (error "No such article: %d" after-article))
3172 (setcdr data (cons (gnus-data-make number mark pos header level)
3173 (cdr data)))
3174 (setq gnus-newsgroup-data-reverse nil)
3175 (gnus-data-update-list (cddr data) offset)))
3176
3177(defun gnus-data-enter-list (after-article list &optional offset)
3178 (when list
3179 (let ((data (and after-article (gnus-data-find-list after-article)))
3180 (ilist list))
6748645f
LMI
3181 (if (not (or data
3182 after-article))
3183 (let ((odata gnus-newsgroup-data))
3184 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3185 (when offset
6748645f 3186 (gnus-data-update-list odata offset)))
01c52d31 3187 ;; Find the last element in the list to be spliced into the main
6748645f 3188 ;; list.
01c52d31 3189 (setq list (last list))
6748645f
LMI
3190 (if (not data)
3191 (progn
3192 (setcdr list gnus-newsgroup-data)
3193 (setq gnus-newsgroup-data ilist)
3194 (when offset
3195 (gnus-data-update-list (cdr list) offset)))
3196 (setcdr list (cdr data))
3197 (setcdr data ilist)
3198 (when offset
3199 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3200 (setq gnus-newsgroup-data-reverse nil))))
3201
3202(defun gnus-data-remove (article &optional offset)
3203 (let ((data gnus-newsgroup-data))
3204 (if (= (gnus-data-number (car data)) article)
3205 (progn
3206 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3207 gnus-newsgroup-data-reverse nil)
3208 (when offset
3209 (gnus-data-update-list gnus-newsgroup-data offset)))
3210 (while (cdr data)
3211 (when (= (gnus-data-number (cadr data)) article)
3212 (setcdr data (cddr data))
3213 (when offset
3214 (gnus-data-update-list (cdr data) offset))
3215 (setq data nil
3216 gnus-newsgroup-data-reverse nil))
3217 (setq data (cdr data))))))
3218
3219(defmacro gnus-data-list (backward)
3220 `(if ,backward
3221 (or gnus-newsgroup-data-reverse
3222 (setq gnus-newsgroup-data-reverse
3223 (reverse gnus-newsgroup-data)))
3224 gnus-newsgroup-data))
3225
3226(defun gnus-data-update-list (data offset)
3227 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3228 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3229 (while data
3230 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3231 (setq data (cdr data))))
3232
eec82323
LMI
3233(defun gnus-summary-article-pseudo-p (article)
3234 "Say whether this article is a pseudo article or not."
3235 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3236
3237(defmacro gnus-summary-article-sparse-p (article)
3238 "Say whether this article is a sparse article or not."
a8151ef7 3239 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3240
3241(defmacro gnus-summary-article-ancient-p (article)
3242 "Say whether this article is a sparse article or not."
3243 `(memq ,article gnus-newsgroup-ancient))
3244
3245(defun gnus-article-parent-p (number)
3246 "Say whether this article is a parent or not."
3247 (let ((data (gnus-data-find-list number)))
23f87bed 3248 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3249 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3250 (gnus-data-level (nth 1 data))))))
3251
3252(defun gnus-article-children (number)
3253 "Return a list of all children to NUMBER."
3254 (let* ((data (gnus-data-find-list number))
3255 (level (gnus-data-level (car data)))
3256 children)
3257 (setq data (cdr data))
3258 (while (and data
3259 (= (gnus-data-level (car data)) (1+ level)))
3260 (push (gnus-data-number (car data)) children)
3261 (setq data (cdr data)))
3262 children))
3263
3264(defmacro gnus-summary-skip-intangible ()
3265 "If the current article is intangible, then jump to a different article."
3266 '(let ((to (get-text-property (point) 'gnus-intangible)))
3267 (and to (gnus-summary-goto-subject to))))
3268
3269(defmacro gnus-summary-article-intangible-p ()
3270 "Say whether this article is intangible or not."
3271 '(get-text-property (point) 'gnus-intangible))
3272
3273(defun gnus-article-read-p (article)
3274 "Say whether ARTICLE is read or not."
3275 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3276 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3277 (memq article gnus-newsgroup-unreads)
3278 (memq article gnus-newsgroup-unselected)
3279 (memq article gnus-newsgroup-dormant))))
3280
3281;; Some summary mode macros.
3282
3283(defmacro gnus-summary-article-number ()
3284 "The article number of the article on the current line.
8f688cb0 3285If there isn't an article number here, then we return the current
eec82323
LMI
3286article number."
3287 '(progn
3288 (gnus-summary-skip-intangible)
3289 (or (get-text-property (point) 'gnus-number)
3290 (gnus-summary-last-subject))))
3291
3292(defmacro gnus-summary-article-header (&optional number)
6748645f 3293 "Return the header of article NUMBER."
eec82323
LMI
3294 `(gnus-data-header (gnus-data-find
3295 ,(or number '(gnus-summary-article-number)))))
3296
3297(defmacro gnus-summary-thread-level (&optional number)
6748645f 3298 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3299 `(if (and (eq gnus-summary-make-false-root 'dummy)
3300 (get-text-property (point) 'gnus-intangible))
3301 0
3302 (gnus-data-level (gnus-data-find
3303 ,(or number '(gnus-summary-article-number))))))
3304
3305(defmacro gnus-summary-article-mark (&optional number)
6748645f 3306 "Return the mark of article NUMBER."
eec82323
LMI
3307 `(gnus-data-mark (gnus-data-find
3308 ,(or number '(gnus-summary-article-number)))))
3309
3310(defmacro gnus-summary-article-pos (&optional number)
6748645f 3311 "Return the position of the line of article NUMBER."
eec82323
LMI
3312 `(gnus-data-pos (gnus-data-find
3313 ,(or number '(gnus-summary-article-number)))))
3314
3315(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3316(defmacro gnus-summary-article-subject (&optional number)
3317 "Return current subject string or nil if nothing."
3318 `(let ((headers
3319 ,(if number
3320 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3321 '(gnus-data-header (assq (gnus-summary-article-number)
3322 gnus-newsgroup-data)))))
3323 (and headers
3324 (vectorp headers)
3325 (mail-header-subject headers))))
3326
3327(defmacro gnus-summary-article-score (&optional number)
3328 "Return current article score."
3329 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3330 gnus-newsgroup-scored))
3331 gnus-summary-default-score 0))
3332
3333(defun gnus-summary-article-children (&optional number)
6748645f 3334 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3335 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3336 (level (gnus-data-level (car data)))
3337 l children)
3338 (while (and (setq data (cdr data))
3339 (> (setq l (gnus-data-level (car data))) level))
3340 (and (= (1+ level) l)
3341 (push (gnus-data-number (car data))
3342 children)))
3343 (nreverse children)))
3344
3345(defun gnus-summary-article-parent (&optional number)
6748645f 3346 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3347 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3348 (gnus-data-list t)))
3349 (level (gnus-data-level (car data))))
3350 (if (zerop level)
3351 () ; This is a root.
3352 ;; We search until we find an article with a level less than
3353 ;; this one. That function has to be the parent.
3354 (while (and (setq data (cdr data))
3355 (not (< (gnus-data-level (car data)) level))))
3356 (and data (gnus-data-number (car data))))))
3357
3358(defun gnus-unread-mark-p (mark)
3359 "Say whether MARK is the unread mark."
3360 (= mark gnus-unread-mark))
3361
3362(defun gnus-read-mark-p (mark)
3363 "Say whether MARK is one of the marks that mark as read.
3364This is all marks except unread, ticked, dormant, and expirable."
3365 (not (or (= mark gnus-unread-mark)
3366 (= mark gnus-ticked-mark)
23f87bed 3367 (= mark gnus-spam-mark)
eec82323
LMI
3368 (= mark gnus-dormant-mark)
3369 (= mark gnus-expirable-mark))))
3370
3371(defmacro gnus-article-mark (number)
6748645f
LMI
3372 "Return the MARK of article NUMBER.
3373This macro should only be used when computing the mark the \"first\"
3374time; i.e., when generating the summary lines. After that,
3375`gnus-summary-article-mark' should be used to examine the
3376marks of articles."
eec82323 3377 `(cond
6748645f 3378 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3379 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3380 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3381 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3382 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3383 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3384 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3385 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3386 gnus-ancient-mark))))
3387
3388;; Saving hidden threads.
3389
eec82323
LMI
3390(defmacro gnus-save-hidden-threads (&rest forms)
3391 "Save hidden threads, eval FORMS, and restore the hidden threads."
3392 (let ((config (make-symbol "config")))
3393 `(let ((,config (gnus-hidden-threads-configuration)))
3394 (unwind-protect
3395 (save-excursion
3396 ,@forms)
3397 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3398(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3399(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3400
107ecebb
AS
3401(defun gnus-data-compute-positions ()
3402 "Compute the positions of all articles."
3403 (setq gnus-newsgroup-data-reverse nil)
3404 (let ((data gnus-newsgroup-data))
3405 (save-excursion
3406 (gnus-save-hidden-threads
3407 (gnus-summary-show-all-threads)
3408 (goto-char (point-min))
3409 (while data
3410 (while (get-text-property (point) 'gnus-intangible)
3411 (forward-line 1))
3412 (gnus-data-set-pos (car data) (+ (point) 3))
3413 (setq data (cdr data))
3414 (forward-line 1))))))
3415
16409b0b
GM
3416(defun gnus-hidden-threads-configuration ()
3417 "Return the current hidden threads configuration."
3418 (save-excursion
3419 (let (config)
3420 (goto-char (point-min))
62a83cc8
KY
3421 (while (not (eobp))
3422 (when (eq (get-char-property (point-at-eol) 'invisible) 'gnus-sum)
3423 (push (save-excursion (forward-line 0) (point)) config))
3424 (forward-line 1))
16409b0b
GM
3425 config)))
3426
3427(defun gnus-restore-hidden-threads-configuration (config)
3428 "Restore hidden threads configuration from CONFIG."
3429 (save-excursion
c7a91ce1 3430 (let (point (inhibit-read-only t))
16409b0b 3431 (while (setq point (pop config))
62a83cc8
KY
3432 (goto-char point)
3433 (gnus-summary-hide-thread)))))
16409b0b 3434
eec82323
LMI
3435;; Various summary mode internalish functions.
3436
3437(defun gnus-mouse-pick-article (e)
3438 (interactive "e")
3439 (mouse-set-point e)
3440 (gnus-summary-next-page nil t))
3441
3442(defun gnus-summary-set-display-table ()
16409b0b
GM
3443 "Change the display table.
3444Odd characters have a tendency to mess
3445up nicely formatted displays - we make all possible glyphs
3446display only a single character."
eec82323
LMI
3447
3448 ;; We start from the standard display table, if any.
3449 (let ((table (or (copy-sequence standard-display-table)
3450 (make-display-table)))
3451 (i 32))
3452 ;; Nix out all the control chars...
3453 (while (>= (setq i (1- i)) 0)
2b968687 3454 (gnus-put-display-table i [??] table))
23f87bed 3455 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3456 ;; selective display).
2b968687
MB
3457 (gnus-put-display-table ?\n nil table)
3458 (gnus-put-display-table ?\r nil table)
6748645f 3459 ;; We keep TAB as well.
2b968687 3460 (gnus-put-display-table ?\t nil table)
719120ef 3461 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3462 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3463 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3464 160
3465 256)))
eec82323
LMI
3466 (while (>= (setq i (1- i)) 127)
3467 ;; Only modify if the entry is nil.
2b968687
MB
3468 (unless (gnus-get-display-table i table)
3469 (gnus-put-display-table i [??] table))))
eec82323
LMI
3470 (setq buffer-display-table table)))
3471
23f87bed
MB
3472(defun gnus-summary-set-article-display-arrow (pos)
3473 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3474 (when gnus-summary-display-arrow
3475 (make-local-variable 'overlay-arrow-position)
3476 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3477 (save-excursion
3478 (goto-char pos)
3479 (beginning-of-line)
3480 (unless overlay-arrow-position
3481 (setq overlay-arrow-position (make-marker)))
3482 (setq overlay-arrow-string "=>"
3483 overlay-arrow-position (set-marker overlay-arrow-position
3484 (point)
3485 (current-buffer))))))
3486
eec82323
LMI
3487(defun gnus-summary-setup-buffer (group)
3488 "Initialize summary buffer."
23f87bed
MB
3489 (let ((buffer (gnus-summary-buffer-name group))
3490 (dead-name (concat "*Dead Summary "
3491 (gnus-group-decoded-name group) "*")))
3492 ;; If a dead summary buffer exists, we kill it.
3493 (when (gnus-buffer-live-p dead-name)
3494 (gnus-kill-buffer dead-name))
eec82323
LMI
3495 (if (get-buffer buffer)
3496 (progn
3497 (set-buffer buffer)
3498 (setq gnus-summary-buffer (current-buffer))
3499 (not gnus-newsgroup-prepared))
3500 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3501 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3502 (gnus-summary-mode group)
3503 (when gnus-carpal
3504 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3505 (when (gnus-group-quit-config group)
3506 (set (make-local-variable 'gnus-single-article-buffer) nil))
3507 (make-local-variable 'gnus-article-buffer)
3508 (make-local-variable 'gnus-article-current)
3509 (make-local-variable 'gnus-original-article-buffer)
eec82323 3510 (setq gnus-newsgroup-name group)
23f87bed
MB
3511 ;; Set any local variables in the group parameters.
3512 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3513 t)))
3514
3515(defun gnus-set-global-variables ()
16409b0b
GM
3516 "Set the global equivalents of the buffer-local variables.
3517They are set to the latest values they had. These reflect the summary
3518buffer that was in action when the last article was fetched."
eec82323
LMI
3519 (when (eq major-mode 'gnus-summary-mode)
3520 (setq gnus-summary-buffer (current-buffer))
3521 (let ((name gnus-newsgroup-name)
3522 (marked gnus-newsgroup-marked)
23f87bed 3523 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3524 (unread gnus-newsgroup-unreads)
3525 (headers gnus-current-headers)
3526 (data gnus-newsgroup-data)
3527 (summary gnus-summary-buffer)
3528 (article-buffer gnus-article-buffer)
3529 (original gnus-original-article-buffer)
3530 (gac gnus-article-current)
3531 (reffed gnus-reffed-article-number)
16409b0b 3532 (score-file gnus-current-score-file)
23f87bed
MB
3533 (default-charset gnus-newsgroup-charset)
3534 vlist)
3535 (let ((locals gnus-newsgroup-variables))
3536 (while locals
3537 (if (consp (car locals))
3538 (push (eval (caar locals)) vlist)
3539 (push (eval (car locals)) vlist))
3540 (setq locals (cdr locals)))
3541 (setq vlist (nreverse vlist)))
01c52d31 3542 (with-current-buffer gnus-group-buffer
6748645f
LMI
3543 (setq gnus-newsgroup-name name
3544 gnus-newsgroup-marked marked
23f87bed 3545 gnus-newsgroup-spam-marked spam
6748645f
LMI
3546 gnus-newsgroup-unreads unread
3547 gnus-current-headers headers
3548 gnus-newsgroup-data data
3549 gnus-article-current gac
3550 gnus-summary-buffer summary
3551 gnus-article-buffer article-buffer
3552 gnus-original-article-buffer original
3553 gnus-reffed-article-number reffed
16409b0b
GM
3554 gnus-current-score-file score-file
3555 gnus-newsgroup-charset default-charset)
23f87bed
MB
3556 (let ((locals gnus-newsgroup-variables))
3557 (while locals
3558 (if (consp (car locals))
3559 (set (caar locals) (pop vlist))
3560 (set (car locals) (pop vlist)))
3561 (setq locals (cdr locals))))
eec82323
LMI
3562 ;; The article buffer also has local variables.
3563 (when (gnus-buffer-live-p gnus-article-buffer)
3564 (set-buffer gnus-article-buffer)
3565 (setq gnus-summary-buffer summary))))))
3566
3567(defun gnus-summary-article-unread-p (article)
3568 "Say whether ARTICLE is unread or not."
3569 (memq article gnus-newsgroup-unreads))
3570
3571(defun gnus-summary-first-article-p (&optional article)
3572 "Return whether ARTICLE is the first article in the buffer."
3573 (if (not (setq article (or article (gnus-summary-article-number))))
3574 nil
3575 (eq article (caar gnus-newsgroup-data))))
3576
3577(defun gnus-summary-last-article-p (&optional article)
3578 "Return whether ARTICLE is the last article in the buffer."
3579 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3580 ;; All non-existent numbers are the last article. :-)
3581 t
eec82323
LMI
3582 (not (cdr (gnus-data-find-list article)))))
3583
4921bbdd
CY
3584(defun gnus-make-thread-indent-array (&optional n)
3585 (when (or n
3586 (progn (setq n 200) nil)
3587 (null gnus-thread-indent-array)
3588 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3589 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3590 gnus-thread-indent-array-level gnus-thread-indent-level)
3591 (while (>= n 0)
3592 (aset gnus-thread-indent-array n
6a30c01d 3593 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3594 (setq n (1- n)))))
eec82323
LMI
3595
3596(defun gnus-update-summary-mark-positions ()
3597 "Compute where the summary marks are to go."
3598 (save-excursion
6748645f 3599 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3600 (set-buffer gnus-summary-buffer))
5153a47a
MB
3601 (let ((spec gnus-summary-line-format-spec)
3602 pos)
eec82323
LMI
3603 (save-excursion
3604 (gnus-set-work-buffer)
5153a47a
MB
3605 (let ((gnus-tmp-unread ?Z)
3606 (gnus-replied-mark ?Z)
3607 (gnus-score-below-mark ?Z)
3608 (gnus-score-over-mark ?Z)
3609 (gnus-undownloaded-mark ?Z)
3610 (gnus-summary-line-format-spec spec)
54506618 3611 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3612 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3613 case-fold-search ignores)
3614 ;; Here, all marks are bound to Z.
3615 (gnus-summary-insert-line header
3616 0 nil t gnus-tmp-unread t nil "" nil 1)
3617 (goto-char (point-min))
3618 ;; Memorize the positions of the same characters as dummy marks.
3619 (while (re-search-forward "[A-D]" nil t)
3620 (push (point) ignores))
54506618 3621 (erase-buffer)
5153a47a
MB
3622 ;; We use A-D as dummy marks in order to know column positions
3623 ;; where marks should be inserted.
3624 (setq gnus-tmp-unread ?A
3625 gnus-replied-mark ?B
3626 gnus-score-below-mark ?C
3627 gnus-score-over-mark ?C
3628 gnus-undownloaded-mark ?D)
3629 (gnus-summary-insert-line header
3630 0 nil t gnus-tmp-unread t nil "" nil 1)
3631 ;; Ignore characters which aren't dummy marks.
3632 (dolist (p ignores)
3633 (delete-region (goto-char (1- p)) p)
3634 (insert ?Z))
eec82323 3635 (goto-char (point-min))
7c3bb5a5 3636 (setq pos (list (cons 'unread
5153a47a 3637 (and (search-forward "A" nil t)
7c3bb5a5 3638 (- (point) (point-min) 1)))))
eec82323 3639 (goto-char (point-min))
5153a47a 3640 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3641 (- (point) (point-min) 1)))
eec82323
LMI
3642 pos)
3643 (goto-char (point-min))
5153a47a 3644 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3645 (- (point) (point-min) 1)))
6748645f
LMI
3646 pos)
3647 (goto-char (point-min))
5153a47a 3648 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3649 (- (point) (point-min) 1)))
eec82323
LMI
3650 pos)))
3651 (setq gnus-summary-mark-positions pos))))
3652
3653(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3654 "Insert a dummy root in the summary buffer."
3655 (beginning-of-line)
3656 (gnus-add-text-properties
3657 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3658 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3659
23f87bed
MB
3660(defun gnus-summary-extract-address-component (from)
3661 (or (car (funcall gnus-extract-address-components from))
3662 from))
3663
3664(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3665 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3666 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3667 ; Is it really necessary to do this next part for each summary line?
3668 ; Luckily, doesn't seem to slow things down much.
16409b0b 3669 (mail-parse-ignored-charsets
01c52d31
MB
3670 (with-current-buffer gnus-summary-buffer
3671 gnus-newsgroup-ignored-charsets)))
23f87bed 3672 (or
01c52d31
MB
3673 (and ignored-from-addresses
3674 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3675 (let ((extra-headers (mail-header-extra header))
3676 to
3677 newsgroups)
3678 (cond
3679 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3680 (concat gnus-summary-to-prefix
23f87bed
MB
3681 (inline
3682 (gnus-summary-extract-address-component
343d6628 3683 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3684 ((setq newsgroups
3685 (or
3686 (cdr (assq 'Newsgroups extra-headers))
3687 (and
3688 (memq 'Newsgroups gnus-extra-headers)
3689 (eq (car (gnus-find-method-for-group
3690 gnus-newsgroup-name)) 'nntp)
3691 (gnus-group-real-name gnus-newsgroup-name))))
3692 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3693 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3694
eec82323
LMI
3695(defun gnus-summary-insert-line (gnus-tmp-header
3696 gnus-tmp-level gnus-tmp-current
23f87bed 3697 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3698 gnus-tmp-expirable gnus-tmp-subject-or-nil
3699 &optional gnus-tmp-dummy gnus-tmp-score
3700 gnus-tmp-process)
4921bbdd
CY
3701 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3702 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3703 gnus-tmp-level)))
eec82323
LMI
3704 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3705 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3706 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3707 (gnus-tmp-score-char
3708 (if (or (null gnus-summary-default-score)
3709 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3710 gnus-summary-zcore-fuzz))
23f87bed 3711 ? ;Whitespace
eec82323
LMI
3712 (if (< gnus-tmp-score gnus-summary-default-score)
3713 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3714 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3715 (gnus-tmp-replied
3716 (cond (gnus-tmp-process gnus-process-mark)
3717 ((memq gnus-tmp-current gnus-newsgroup-cached)
3718 gnus-cached-mark)
3719 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3720 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3721 gnus-forwarded-mark)
eec82323
LMI
3722 ((memq gnus-tmp-current gnus-newsgroup-saved)
3723 gnus-saved-mark)
23f87bed
MB
3724 ((memq gnus-tmp-number gnus-newsgroup-recent)
3725 gnus-recent-mark)
3726 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3727 gnus-unseen-mark)
3728 (t gnus-no-mark)))
3729 (gnus-tmp-downloaded
3730 (cond (undownloaded
3731 gnus-undownloaded-mark)
3732 (gnus-newsgroup-agentized
3733 gnus-downloaded-mark)
3734 (t
3735 gnus-no-mark)))
eec82323
LMI
3736 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3737 (gnus-tmp-name
3738 (cond
3739 ((string-match "<[^>]+> *$" gnus-tmp-from)
3740 (let ((beg (match-beginning 0)))
23f87bed
MB
3741 (or (and (string-match "^\".+\"" gnus-tmp-from)
3742 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3743 (substring gnus-tmp-from 0 beg))))
3744 ((string-match "(.+)" gnus-tmp-from)
3745 (substring gnus-tmp-from
3746 (1+ (match-beginning 0)) (1- (match-end 0))))
3747 (t gnus-tmp-from)))
3748 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3749 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3750 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3751 (inhibit-read-only t))
eec82323
LMI
3752 (when (string= gnus-tmp-name "")
3753 (setq gnus-tmp-name gnus-tmp-from))
3754 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3755 (setq gnus-tmp-lines -1))
3756 (if (= gnus-tmp-lines -1)
3757 (setq gnus-tmp-lines "?")
3758 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3759 (condition-case ()
3760 (gnus-put-text-property
3761 (point)
3762 (progn (eval gnus-summary-line-format-spec) (point))
3763 'gnus-number gnus-tmp-number)
3764 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3765 (when (gnus-visual-p 'summary-highlight 'highlight)
3766 (forward-line -1)
a9ec34f4 3767 (gnus-summary-highlight-line)
6748645f 3768 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3769 (forward-line 1))))
3770
3771(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3772 "Update summary line after change."
eec82323
LMI
3773 (when (and gnus-summary-default-score
3774 (not gnus-summary-inhibit-highlight))
3775 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3776 (article (gnus-summary-article-number))
3777 (score (gnus-summary-article-score article)))
3778 (unless dont-update
3779 (if (and gnus-summary-mark-below
3780 (< (gnus-summary-article-score)
3781 gnus-summary-mark-below))
3782 ;; This article has a low score, so we mark it as read.
3783 (when (memq article gnus-newsgroup-unreads)
3784 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3785 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3786 ;; This article was previously marked as read on account
3787 ;; of a low score, but now it has risen, so we mark it as
3788 ;; unread.
3789 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3790 (gnus-summary-update-mark
3791 (if (or (null gnus-summary-default-score)
3792 (<= (abs (- score gnus-summary-default-score))
3793 gnus-summary-zcore-fuzz))
23f87bed 3794 ? ;Whitespace
eec82323
LMI
3795 (if (< score gnus-summary-default-score)
3796 gnus-score-below-mark gnus-score-over-mark))
3797 'score))
3798 ;; Do visual highlighting.
3799 (when (gnus-visual-p 'summary-highlight 'highlight)
a9ec34f4 3800 (gnus-summary-highlight-line)
6748645f 3801 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3802
3803(defvar gnus-tmp-new-adopts nil)
3804
3805(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3806 "Return the number of articles in THREAD.
3807This may be 0 in some cases -- if none of the articles in
3808the thread are to be displayed."
3809 (let* ((number
23f87bed 3810 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3811 (cond
3812 ((not (listp thread))
3813 1)
3814 ((and (consp thread) (cdr thread))
3815 (apply
3816 '+ 1 (mapcar
3817 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3818 ((null thread)
3819 1)
3820 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3821 1)
3822 (t 0))))
3823 (when (and level (zerop level) gnus-tmp-new-adopts)
3824 (incf number
3825 (apply '+ (mapcar
3826 'gnus-summary-number-of-articles-in-thread
3827 gnus-tmp-new-adopts))))
3828 (if char
3829 (if (> number 1) gnus-not-empty-thread-mark
3830 gnus-empty-thread-mark)
3831 number)))
3832
23f87bed
MB
3833(defsubst gnus-summary-line-message-size (head)
3834 "Return pretty-printed version of message size.
3835This function is intended to be used in
3836`gnus-summary-line-format-alist'."
3837 (let ((c (or (mail-header-chars head) -1)))
3838 (cond ((< c 0) "n/a") ; chars not available
3839 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3840 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3841 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3842 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3843
3844
eec82323
LMI
3845(defun gnus-summary-set-local-parameters (group)
3846 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3847 (let ((vars '(quit-config))) ; Ignore quit-config.
3848 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3849 (and (consp elem) ; Has to be a cons.
3850 (consp (cdr elem)) ; The cdr has to be a list.
3851 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3852 (not (memq (car elem) vars))
e3e955fe 3853 (ignore-errors
23f87bed 3854 (push (car elem) vars)
e3e955fe
MB
3855 ;; Variables like `gnus-show-threads' that are globally
3856 ;; bound, if used as group parameters, need to get to be
3857 ;; buffer-local, whereas just parameters like `gcc-self',
3858 ;; `timestamp', etc. should not be bound as variables.
3859 (if (boundp (car elem))
3860 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3861 (eval (nth 1 elem))))))))
eec82323
LMI
3862
3863(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3864 kill-buffer no-display backward
3865 select-articles)
eec82323
LMI
3866 "Start reading news in newsgroup GROUP.
3867If SHOW-ALL is non-nil, already read articles are also listed.
3868If NO-ARTICLE is non-nil, no article is selected initially.
3869If NO-DISPLAY, don't generate a summary buffer."
3870 (let (result)
3871 (while (and group
3872 (null (setq result
3873 (let ((gnus-auto-select-next nil))
6748645f
LMI
3874 (or (gnus-summary-read-group-1
3875 group show-all no-article
3876 kill-buffer no-display
3877 select-articles)
3878 (setq show-all nil
16409b0b 3879 select-articles nil)))))
eec82323
LMI
3880 (eq gnus-auto-select-next 'quietly))
3881 (set-buffer gnus-group-buffer)
6748645f
LMI
3882 ;; The entry function called above goes to the next
3883 ;; group automatically, so we go two groups back
3884 ;; if we are searching for the previous group.
3885 (when backward
3886 (gnus-group-prev-unread-group 2))
eec82323
LMI
3887 (if (not (equal group (gnus-group-group-name)))
3888 (setq group (gnus-group-group-name))
3889 (setq group nil)))
3890 result))
3891
3892(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3893 kill-buffer no-display
3894 &optional select-articles)
eec82323 3895 ;; Killed foreign groups can't be entered.
23f87bed
MB
3896 ;; (when (and (not (gnus-group-native-p group))
3897 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3898 ;; (error "Dead non-native groups can't be entered"))
3899 (gnus-message 5 "Retrieving newsgroup: %s..."
3900 (gnus-group-decoded-name group))
eec82323
LMI
3901 (let* ((new-group (gnus-summary-setup-buffer group))
3902 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3903 (did-select (and new-group (gnus-select-newsgroup
3904 group show-all select-articles))))
eec82323
LMI
3905 (cond
3906 ;; This summary buffer exists already, so we just select it.
3907 ((not new-group)
3908 (gnus-set-global-variables)
3909 (when kill-buffer
3910 (gnus-kill-or-deaden-summary kill-buffer))
3911 (gnus-configure-windows 'summary 'force)
3912 (gnus-set-mode-line 'summary)
3913 (gnus-summary-position-point)
3914 (message "")
3915 t)
3916 ;; We couldn't select this group.
3917 ((null did-select)
3918 (when (and (eq major-mode 'gnus-summary-mode)
3919 (not (equal (current-buffer) kill-buffer)))
3920 (kill-buffer (current-buffer))
3921 (if (not quit-config)
3922 (progn
6748645f
LMI
3923 ;; Update the info -- marks might need to be removed,
3924 ;; for instance.
3925 (gnus-summary-update-info)
eec82323
LMI
3926 (set-buffer gnus-group-buffer)
3927 (gnus-group-jump-to-group group)
3928 (gnus-group-next-unread-group 1))
3929 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3930 (let ((grpinfo (gnus-get-info group)))
3931 (if (null (gnus-info-read grpinfo))
3932 (gnus-message 3 "Group %s contains no messages"
3933 (gnus-group-decoded-name group))
3934 (gnus-message 3 "Can't select group")))
eec82323
LMI
3935 nil)
3936 ;; The user did a `C-g' while prompting for number of articles,
3937 ;; so we exit this group.
3938 ((eq did-select 'quit)
3939 (and (eq major-mode 'gnus-summary-mode)
3940 (not (equal (current-buffer) kill-buffer))
3941 (kill-buffer (current-buffer)))
3942 (when kill-buffer
3943 (gnus-kill-or-deaden-summary kill-buffer))
3944 (if (not quit-config)
3945 (progn
3946 (set-buffer gnus-group-buffer)
3947 (gnus-group-jump-to-group group)
eec82323
LMI
3948 (gnus-configure-windows 'group 'force))
3949 (gnus-handle-ephemeral-exit quit-config))
3950 ;; Finally signal the quit.
3951 (signal 'quit nil))
3952 ;; The group was successfully selected.
3953 (t
3954 (gnus-set-global-variables)
3955 ;; Save the active value in effect when the group was entered.
3956 (setq gnus-newsgroup-active
3957 (gnus-copy-sequence
3958 (gnus-active gnus-newsgroup-name)))
3959 ;; You can change the summary buffer in some way with this hook.
6748645f 3960 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3961 (when (memq 'summary (gnus-update-format-specifications
3962 nil 'summary 'summary-mode 'summary-dummy))
3963 ;; The format specification for the summary line was updated,
3964 ;; so we need to update the mark positions as well.
3965 (gnus-update-summary-mark-positions))
eec82323
LMI
3966 ;; Do score processing.
3967 (when gnus-use-scoring
3968 (gnus-possibly-score-headers))
3969 ;; Check whether to fill in the gaps in the threads.
3970 (when gnus-build-sparse-threads
3971 (gnus-build-sparse-threads))
3972 ;; Find the initial limit.
26c9afc3
MB
3973 (if show-all
3974 (let ((gnus-newsgroup-dormant nil))
eec82323 3975 (gnus-summary-initial-limit show-all))
26c9afc3 3976 (gnus-summary-initial-limit show-all))
eec82323
LMI
3977 ;; Generate the summary buffer.
3978 (unless no-display
3979 (gnus-summary-prepare))
3980 (when gnus-use-trees
3981 (gnus-tree-open group)
3982 (setq gnus-summary-highlight-line-function
3983 'gnus-tree-highlight-article))
3984 ;; If the summary buffer is empty, but there are some low-scored
3985 ;; articles or some excluded dormants, we include these in the
3986 ;; buffer.
3987 (when (and (zerop (buffer-size))
3988 (not no-display))
3989 (cond (gnus-newsgroup-dormant
3990 (gnus-summary-limit-include-dormant))
3991 ((and gnus-newsgroup-scored show-all)
3992 (gnus-summary-limit-include-expunged t))))
3993 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3994 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3995 (if (and (zerop (buffer-size))
3996 (not no-display))
3997 (progn
3998 ;; This newsgroup is empty.
3999 (gnus-summary-catchup-and-exit nil t)
4000 (gnus-message 6 "No unread news")
4001 (when kill-buffer
4002 (gnus-kill-or-deaden-summary kill-buffer))
4003 ;; Return nil from this function.
4004 nil)
4005 ;; Hide conversation thread subtrees. We cannot do this in
4006 ;; gnus-summary-prepare-hook since kill processing may not
4007 ;; work with hidden articles.
23f87bed 4008 (gnus-summary-maybe-hide-threads)
6748645f
LMI
4009 (when kill-buffer
4010 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 4011 (gnus-summary-auto-select-subject)
eec82323
LMI
4012 ;; Show first unread article if requested.
4013 (if (and (not no-article)
4014 (not no-display)
4015 gnus-newsgroup-unreads
4016 gnus-auto-select-first)
16409b0b
GM
4017 (progn
4018 (gnus-configure-windows 'summary)
23f87bed
MB
4019 (let ((art (gnus-summary-article-number)))
4020 (unless (and (not gnus-plugged)
4021 (or (memq art gnus-newsgroup-undownloaded)
4022 (memq art gnus-newsgroup-downloadable)))
4023 (gnus-summary-goto-article art))))
4024 ;; Don't select any articles.
eec82323 4025 (gnus-summary-position-point)
6748645f
LMI
4026 (gnus-configure-windows 'summary 'force)
4027 (gnus-set-mode-line 'summary))
23f87bed
MB
4028 (when (and gnus-auto-center-group
4029 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4030 ;; Gotta use windows, because recenter does weird stuff if
4031 ;; the current buffer ain't the displayed window.
4032 (let ((owin (selected-window)))
4033 (select-window (get-buffer-window gnus-group-buffer t))
4034 (when (gnus-group-goto-group group)
4035 (recenter))
4036 (select-window owin)))
4037 ;; Mark this buffer as "prepared".
4038 (setq gnus-newsgroup-prepared t)
6748645f 4039 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4040 (unless (gnus-ephemeral-group-p group)
4041 (gnus-group-update-group group))
eec82323
LMI
4042 t)))))
4043
23f87bed
MB
4044(defun gnus-summary-auto-select-subject ()
4045 "Select the subject line on initial group entry."
4046 (goto-char (point-min))
4047 (cond
4048 ((eq gnus-auto-select-subject 'best)
4049 (gnus-summary-best-unread-subject))
4050 ((eq gnus-auto-select-subject 'unread)
4051 (gnus-summary-first-unread-subject))
4052 ((eq gnus-auto-select-subject 'unseen)
4053 (gnus-summary-first-unseen-subject))
4054 ((eq gnus-auto-select-subject 'unseen-or-unread)
4055 (gnus-summary-first-unseen-or-unread-subject))
4056 ((eq gnus-auto-select-subject 'first)
4057 ;; Do nothing.
4058 )
4059 ((functionp gnus-auto-select-subject)
4060 (funcall gnus-auto-select-subject))))
4061
eec82323
LMI
4062(defun gnus-summary-prepare ()
4063 "Generate the summary buffer."
4064 (interactive)
c7a91ce1 4065 (let ((inhibit-read-only t))
eec82323
LMI
4066 (erase-buffer)
4067 (setq gnus-newsgroup-data nil
4068 gnus-newsgroup-data-reverse nil)
6748645f 4069 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4070 ;; Generate the buffer, either with threads or without.
4071 (when gnus-newsgroup-headers
4072 (gnus-summary-prepare-threads
4073 (if gnus-show-threads
4074 (gnus-sort-gathered-threads
4075 (funcall gnus-summary-thread-gathering-function
4076 (gnus-sort-threads
4077 (gnus-cut-threads (gnus-make-threads)))))
4078 ;; Unthreaded display.
4079 (gnus-sort-articles gnus-newsgroup-headers))))
4080 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4081 ;; Call hooks for modifying summary buffer.
4082 (goto-char (point-min))
6748645f 4083 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4084
4085(defsubst gnus-general-simplify-subject (subject)
23f87bed 4086 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4087 (setq subject
4088 (cond
4089 ;; Truncate the subject.
6748645f
LMI
4090 (gnus-simplify-subject-functions
4091 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4092 ((numberp gnus-summary-gather-subject-limit)
4093 (setq subject (gnus-simplify-subject-re subject))
4094 (if (> (length subject) gnus-summary-gather-subject-limit)
4095 (substring subject 0 gnus-summary-gather-subject-limit)
4096 subject))
4097 ;; Fuzzily simplify it.
4098 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4099 (gnus-simplify-subject-fuzzy subject))
4100 ;; Just remove the leading "Re:".
4101 (t
4102 (gnus-simplify-subject-re subject))))
4103
4104 (if (and gnus-summary-gather-exclude-subject
4105 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4106 nil ; This article shouldn't be gathered
eec82323
LMI
4107 subject))
4108
4109(defun gnus-summary-simplify-subject-query ()
4110 "Query where the respool algorithm would put this article."
4111 (interactive)
eec82323 4112 (gnus-summary-select-article)
274f1353 4113 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4114
4115(defun gnus-gather-threads-by-subject (threads)
4116 "Gather threads by looking at Subject headers."
4117 (if (not gnus-summary-make-false-root)
4118 threads
4119 (let ((hashtb (gnus-make-hashtable 1024))
4120 (prev threads)
4121 (result threads)
4122 subject hthread whole-subject)
4123 (while threads
4124 (setq subject (gnus-general-simplify-subject
4125 (setq whole-subject (mail-header-subject
4126 (caar threads)))))
4127 (when subject
4128 (if (setq hthread (gnus-gethash subject hashtb))
4129 (progn
4130 ;; We enter a dummy root into the thread, if we
4131 ;; haven't done that already.
4132 (unless (stringp (caar hthread))
4133 (setcar hthread (list whole-subject (car hthread))))
4134 ;; We add this new gathered thread to this gathered
4135 ;; thread.
4136 (setcdr (car hthread)
4137 (nconc (cdar hthread) (list (car threads))))
4138 ;; Remove it from the list of threads.
4139 (setcdr prev (cdr threads))
4140 (setq threads prev))
4141 ;; Enter this thread into the hash table.
23f87bed
MB
4142 (gnus-sethash subject
4143 (if gnus-summary-make-false-root-always
4144 (progn
4145 ;; If you want a dummy root above all
4146 ;; threads...
4147 (setcar threads (list whole-subject
4148 (car threads)))
4149 threads)
4150 threads)
4151 hashtb)))
eec82323
LMI
4152 (setq prev threads)
4153 (setq threads (cdr threads)))
4154 result)))
4155
4156(defun gnus-gather-threads-by-references (threads)
4157 "Gather threads by looking at References headers."
4158 (let ((idhashtb (gnus-make-hashtable 1024))
4159 (thhashtb (gnus-make-hashtable 1024))
4160 (prev threads)
4161 (result threads)
4162 ids references id gthread gid entered ref)
4163 (while threads
4164 (when (setq references (mail-header-references (caar threads)))
4165 (setq id (mail-header-id (caar threads))
23f87bed 4166 ids (inline (gnus-split-references references))
eec82323
LMI
4167 entered nil)
4168 (while (setq ref (pop ids))
4169 (setq ids (delete ref ids))
4170 (if (not (setq gid (gnus-gethash ref idhashtb)))
4171 (progn
4172 (gnus-sethash ref id idhashtb)
4173 (gnus-sethash id threads thhashtb))
4174 (setq gthread (gnus-gethash gid thhashtb))
4175 (unless entered
4176 ;; We enter a dummy root into the thread, if we
4177 ;; haven't done that already.
4178 (unless (stringp (caar gthread))
4179 (setcar gthread (list (mail-header-subject (caar gthread))
4180 (car gthread))))
4181 ;; We add this new gathered thread to this gathered
4182 ;; thread.
4183 (setcdr (car gthread)
4184 (nconc (cdar gthread) (list (car threads)))))
4185 ;; Add it into the thread hash table.
4186 (gnus-sethash id gthread thhashtb)
4187 (setq entered t)
4188 ;; Remove it from the list of threads.
4189 (setcdr prev (cdr threads))
4190 (setq threads prev))))
4191 (setq prev threads)
4192 (setq threads (cdr threads)))
4193 result))
4194
4195(defun gnus-sort-gathered-threads (threads)
16409b0b 4196 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4197 (let ((result threads))
4198 (while threads
4199 (when (stringp (caar threads))
4200 (setcdr (car threads)
16409b0b 4201 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4202 (setq threads (cdr threads)))
4203 result))
4204
4205(defun gnus-thread-loop-p (root thread)
4206 "Say whether ROOT is in THREAD."
4207 (let ((stack (list thread))
4208 (infloop 0)
4209 th)
4210 (while (setq thread (pop stack))
4211 (setq th (cdr thread))
4212 (while (and th
4213 (not (eq (caar th) root)))
4214 (pop th))
4215 (if th
4216 ;; We have found a loop.
4217 (let (ref-dep)
4218 (setcdr thread (delq (car th) (cdr thread)))
4219 (if (boundp (setq ref-dep (intern "none"
4220 gnus-newsgroup-dependencies)))
4221 (setcdr (symbol-value ref-dep)
4222 (nconc (cdr (symbol-value ref-dep))
4223 (list (car th))))
4224 (set ref-dep (list nil (car th))))
4225 (setq infloop 1
4226 stack nil))
4227 ;; Push all the subthreads onto the stack.
4228 (push (cdr thread) stack)))
4229 infloop))
4230
4231(defun gnus-make-threads ()
01ccbb85 4232 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4233 (let (threads)
4234 (while (catch 'infloop
4235 (mapatoms
4236 (lambda (refs)
4237 ;; Deal with self-referencing References loops.
4238 (when (and (car (symbol-value refs))
4239 (not (zerop
4240 (apply
4241 '+
4242 (mapcar
4243 (lambda (thread)
4244 (gnus-thread-loop-p
4245 (car (symbol-value refs)) thread))
4246 (cdr (symbol-value refs)))))))
4247 (setq threads nil)
4248 (throw 'infloop t))
4249 (unless (car (symbol-value refs))
23f87bed
MB
4250 ;; These threads do not refer back to any other
4251 ;; articles, so they're roots.
eec82323
LMI
4252 (setq threads (append (cdr (symbol-value refs)) threads))))
4253 gnus-newsgroup-dependencies)))
4254 threads))
4255
6748645f 4256;; Build the thread tree.
16409b0b 4257(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4258 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4259
4260If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4261if it was already present.
4262
4263If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4264will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4265Message-IDs will be renamed to a unique Message-ID before being
4266entered.
6748645f
LMI
4267
4268Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4269 (let* ((id (mail-header-id header))
4270 (id-dep (and id (intern id dependencies)))
23f87bed 4271 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4272 ;; Enter this `header' in the `dependencies' table.
4273 (cond
4274 ((not id-dep)
4275 (setq header nil))
4276 ;; The first two cases do the normal part: enter a new `header'
4277 ;; in the `dependencies' table.
4278 ((not (boundp id-dep))
4279 (set id-dep (list header)))
4280 ((null (car (symbol-value id-dep)))
4281 (setcar (symbol-value id-dep) header))
4282
4283 ;; From here the `header' was already present in the
4284 ;; `dependencies' table.
4285 (force-new
4286 ;; Overrides an existing entry;
4287 ;; just set the header part of the entry.
23f87bed
MB
4288 (setcar (symbol-value id-dep) header)
4289 (setq replaced t))
6748645f
LMI
4290
4291 ;; Renames the existing `header' to a unique Message-ID.
4292 ((not gnus-summary-ignore-duplicates)
4293 ;; An article with this Message-ID has already been seen.
4294 ;; We rename the Message-ID.
4295 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4296 (list header))
4297 (mail-header-set-id header id))
4298
4299 ;; The last case ignores an existing entry, except it adds any
4300 ;; additional Xrefs (in case the two articles came from different
4301 ;; servers.
4302 ;; Also sets `header' to `nil' meaning that the `dependencies'
4303 ;; table was *not* modified.
4304 (t
4305 (mail-header-set-xref
4306 (car (symbol-value id-dep))
4307 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4308 "")
4309 (or (mail-header-xref header) "")))
4310 (setq header nil)))
4311
23f87bed
MB
4312 (when (and header (not replaced))
4313 ;; First check that we are not creating a References loop.
4314 (setq parent-id (gnus-parent-id (mail-header-references header)))
4315 (setq ref parent-id)
6748645f
LMI
4316 (while (and ref
4317 (setq ref-dep (intern-soft ref dependencies))
4318 (boundp ref-dep)
4319 (setq ref-header (car (symbol-value ref-dep))))
4320 (if (string= id ref)
4321 ;; Yuk! This is a reference loop. Make the article be a
4322 ;; root article.
4323 (progn
4324 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4325 (setq ref nil)
4326 (setq parent-id nil))
6748645f 4327 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4328 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4329 (if (boundp ref-dep)
4330 (setcdr (symbol-value ref-dep)
4331 (nconc (cdr (symbol-value ref-dep))
4332 (list (symbol-value id-dep))))
4333 (set ref-dep (list nil (symbol-value id-dep)))))
4334 header))
4335
23f87bed
MB
4336(defun gnus-extract-message-id-from-in-reply-to (string)
4337 (if (string-match "<[^>]+>" string)
4338 (substring string (match-beginning 0) (match-end 0))
4339 nil))
4340
eec82323
LMI
4341(defun gnus-build-sparse-threads ()
4342 (let ((headers gnus-newsgroup-headers)
16409b0b 4343 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4344 (gnus-summary-ignore-duplicates t)
eec82323 4345 header references generation relations
6748645f 4346 subject child end new-child date)
eec82323
LMI
4347 ;; First we create an alist of generations/relations, where
4348 ;; generations is how much we trust the relation, and the relation
4349 ;; is parent/child.
4350 (gnus-message 7 "Making sparse threads...")
4351 (save-excursion
4352 (nnheader-set-temp-buffer " *gnus sparse threads*")
4353 (while (setq header (pop headers))
4354 (when (and (setq references (mail-header-references header))
4355 (not (string= references "")))
4356 (insert references)
4357 (setq child (mail-header-id header)
6748645f
LMI
4358 subject (mail-header-subject header)
4359 date (mail-header-date header)
4360 generation 0)
eec82323
LMI
4361 (while (search-backward ">" nil t)
4362 (setq end (1+ (point)))
4363 (when (search-backward "<" nil t)
6748645f 4364 (setq new-child (buffer-substring (point) end))
eec82323 4365 (push (list (incf generation)
6748645f
LMI
4366 child (setq child new-child)
4367 subject date)
eec82323 4368 relations)))
6748645f
LMI
4369 (when child
4370 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4371 (erase-buffer)))
4372 (kill-buffer (current-buffer)))
4373 ;; Sort over trustworthiness.
01c52d31
MB
4374 (dolist (relation (sort relations 'car-less-than-car))
4375 (when (gnus-dependencies-add-header
4376 (make-full-mail-header
4377 gnus-reffed-article-number
4378 (nth 3 relation) "" (or (nth 4 relation) "")
4379 (nth 1 relation)
4380 (or (nth 2 relation) "") 0 0 "")
4381 gnus-newsgroup-dependencies nil)
4382 (push gnus-reffed-article-number gnus-newsgroup-limit)
4383 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4384 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4385 gnus-newsgroup-reads)
4386 (decf gnus-reffed-article-number)))
eec82323
LMI
4387 (gnus-message 7 "Making sparse threads...done")))
4388
4389(defun gnus-build-old-threads ()
4390 ;; Look at all the articles that refer back to old articles, and
4391 ;; fetch the headers for the articles that aren't there. This will
4392 ;; build complete threads - if the roots haven't been expired by the
4393 ;; server, that is.
16409b0b
GM
4394 (let ((mail-parse-charset gnus-newsgroup-charset)
4395 id heads)
eec82323
LMI
4396 (mapatoms
4397 (lambda (refs)
4398 (when (not (car (symbol-value refs)))
4399 (setq heads (cdr (symbol-value refs)))
4400 (while heads
4401 (if (memq (mail-header-number (caar heads))
4402 gnus-newsgroup-dormant)
4403 (setq heads (cdr heads))
4404 (setq id (symbol-name refs))
4405 (while (and (setq id (gnus-build-get-header id))
6748645f 4406 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4407 (setq heads nil)))))
4408 gnus-newsgroup-dependencies)))
4409
23f87bed
MB
4410(defsubst gnus-remove-odd-characters (string)
4411 "Translate STRING into something that doesn't contain weird characters."
4412 (mm-subst-char-in-string
4413 ?\r ?\-
01c52d31 4414 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4415
6748645f
LMI
4416;; This function has to be called with point after the article number
4417;; on the beginning of the line.
4418(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4419 (let ((eol (point-at-eol))
6748645f 4420 (buffer (current-buffer))
23f87bed 4421 header references in-reply-to)
6748645f
LMI
4422
4423 ;; overview: [num subject from date id refs chars lines misc]
4424 (unwind-protect
23f87bed 4425 (let (x)
6748645f
LMI
4426 (narrow-to-region (point) eol)
4427 (unless (eobp)
4428 (forward-char))
4429
4430 (setq header
4431 (make-full-mail-header
4432 number ; number
23f87bed
MB
4433 (condition-case () ; subject
4434 (gnus-remove-odd-characters
4435 (funcall gnus-decode-encoded-word-function
4436 (setq x (nnheader-nov-field))))
4437 (error x))
4438 (condition-case () ; from
4439 (gnus-remove-odd-characters
343d6628 4440 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4441 (setq x (nnheader-nov-field))))
4442 (error x))
16409b0b 4443 (nnheader-nov-field) ; date
01c52d31 4444 (nnheader-nov-read-message-id number) ; id
23f87bed 4445 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4446 (nnheader-nov-read-integer) ; chars
4447 (nnheader-nov-read-integer) ; lines
4448 (unless (eobp)
8b93df01
DL
4449 (if (looking-at "Xref: ")
4450 (goto-char (match-end 0)))
4451 (nnheader-nov-field)) ; Xref
16409b0b 4452 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4453
4454 (widen))
4455
23f87bed
MB
4456 (when (and (string= references "")
4457 (setq in-reply-to (mail-header-extra header))
4458 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4459 (mail-header-set-references
4460 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4461
6748645f
LMI
4462 (when gnus-alter-header-function
4463 (funcall gnus-alter-header-function header))
4464 (gnus-dependencies-add-header header dependencies force-new)))
4465
eec82323 4466(defun gnus-build-get-header (id)
16409b0b
GM
4467 "Look through the buffer of NOV lines and find the header to ID.
4468Enter this line into the dependencies hash table, and return
4469the id of the parent article (if any)."
eec82323
LMI
4470 (let ((deps gnus-newsgroup-dependencies)
4471 found header)
4472 (prog1
c7a91ce1 4473 (with-current-buffer nntp-server-buffer
eec82323
LMI
4474 (let ((case-fold-search nil))
4475 (goto-char (point-min))
4476 (while (and (not found)
4477 (search-forward id nil t))
4478 (beginning-of-line)
4479 (setq found (looking-at
4480 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4481 (regexp-quote id))))
4482 (or found (beginning-of-line 2)))
4483 (when found
4484 (beginning-of-line)
4485 (and
4486 (setq header (gnus-nov-parse-line
4487 (read (current-buffer)) deps))
4488 (gnus-parent-id (mail-header-references header))))))
4489 (when header
4490 (let ((number (mail-header-number header)))
4491 (push number gnus-newsgroup-limit)
4492 (push header gnus-newsgroup-headers)
4493 (if (memq number gnus-newsgroup-unselected)
4494 (progn
23f87bed
MB
4495 (setq gnus-newsgroup-unreads
4496 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4497 number))
eec82323
LMI
4498 (setq gnus-newsgroup-unselected
4499 (delq number gnus-newsgroup-unselected)))
4500 (push number gnus-newsgroup-ancient)))))))
4501
6748645f
LMI
4502(defun gnus-build-all-threads ()
4503 "Read all the headers."
4504 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4505 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4506 (dependencies gnus-newsgroup-dependencies)
4507 header article)
c7a91ce1 4508 (with-current-buffer nntp-server-buffer
6748645f
LMI
4509 (let ((case-fold-search nil))
4510 (goto-char (point-min))
4511 (while (not (eobp))
4512 (ignore-errors
4513 (setq article (read (current-buffer))
16409b0b 4514 header (gnus-nov-parse-line article dependencies)))
6748645f 4515 (when header
01c52d31 4516 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4517 (push header gnus-newsgroup-headers)
4518 (if (memq (setq article (mail-header-number header))
4519 gnus-newsgroup-unselected)
4520 (progn
23f87bed
MB
4521 (setq gnus-newsgroup-unreads
4522 (gnus-add-to-sorted-list
4523 gnus-newsgroup-unreads article))
6748645f
LMI
4524 (setq gnus-newsgroup-unselected
4525 (delq article gnus-newsgroup-unselected)))
4526 (push article gnus-newsgroup-ancient)))
4527 (forward-line 1)))))))
4528
eec82323 4529(defun gnus-summary-update-article-line (article header)
23f87bed 4530 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4531 (let* ((id (mail-header-id header))
4532 (thread (gnus-id-to-thread id)))
4533 (unless thread
4534 (error "Article in no thread"))
4535 ;; Update the thread.
4536 (setcar thread header)
4537 (gnus-summary-goto-subject article)
4538 (let* ((datal (gnus-data-find-list article))
4539 (data (car datal))
c7a91ce1 4540 (inhibit-read-only t)
eec82323
LMI
4541 (level (gnus-summary-thread-level)))
4542 (gnus-delete-line)
23f87bed
MB
4543 (let ((inserted (- (point)
4544 (progn
4545 (gnus-summary-insert-line
4546 header level nil
4547 (memq article gnus-newsgroup-undownloaded)
4548 (gnus-article-mark article)
4549 (memq article gnus-newsgroup-replied)
4550 (memq article gnus-newsgroup-expirable)
4551 ;; Only insert the Subject string when it's different
4552 ;; from the previous Subject string.
4553 (if (and
4554 gnus-show-threads
4555 (gnus-subject-equal
4556 (condition-case ()
4557 (mail-header-subject
4558 (gnus-data-header
4559 (cadr
4560 (gnus-data-find-list
4561 article
4562 (gnus-data-list t)))))
4563 ;; Error on the side of excessive subjects.
4564 (error ""))
4565 (mail-header-subject header)))
4566 ""
4567 (mail-header-subject header))
4568 nil (cdr (assq article gnus-newsgroup-scored))
4569 (memq article gnus-newsgroup-processable))
4570 (point)))))
4571 (when (cdr datal)
4572 (gnus-data-update-list
4573 (cdr datal)
4574 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4575
4576(defun gnus-summary-update-article (article &optional iheader)
4577 "Update ARTICLE in the summary buffer."
4578 (set-buffer gnus-summary-buffer)
6748645f 4579 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4580 (id (mail-header-id header))
4581 (data (gnus-data-find article))
4582 (thread (gnus-id-to-thread id))
4583 (references (mail-header-references header))
4584 (parent
4585 (gnus-id-to-thread
4586 (or (gnus-parent-id
4587 (when (and references
4588 (not (equal "" references)))
4589 references))
4590 "none")))
c7a91ce1 4591 (inhibit-read-only t)
6748645f 4592 (old (car thread)))
eec82323 4593 (when thread
eec82323 4594 (unless iheader
6748645f
LMI
4595 (setcar thread nil)
4596 (when parent
4597 (delq thread parent)))
4598 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4599 ;; Set the (possibly) new article number in the data structure.
4600 (gnus-data-set-number data (gnus-id-to-article id))
4601 (setcar thread old)
4602 nil))))
4603
6748645f
LMI
4604(defun gnus-rebuild-thread (id &optional line)
4605 "Rebuild the thread containing ID.
4606If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4607 (let ((inhibit-read-only t)
eec82323
LMI
4608 old-pos current thread data)
4609 (if (not gnus-show-threads)
4610 (setq thread (list (car (gnus-id-to-thread id))))
4611 ;; Get the thread this article is part of.
4612 (setq thread (gnus-remove-thread id)))
01c52d31 4613 (setq old-pos (point-at-bol))
eec82323 4614 (setq current (save-excursion
94384150 4615 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4616 (gnus-summary-article-number))))
4617 ;; If this is a gathered thread, we have to go some re-gathering.
4618 (when (stringp (car thread))
4619 (let ((subject (car thread))
4620 roots thr)
4621 (setq thread (cdr thread))
4622 (while thread
4623 (unless (memq (setq thr (gnus-id-to-thread
4624 (gnus-root-id
4625 (mail-header-id (caar thread)))))
4626 roots)
4627 (push thr roots))
4628 (setq thread (cdr thread)))
4629 ;; We now have all (unique) roots.
4630 (if (= (length roots) 1)
4631 ;; All the loose roots are now one solid root.
4632 (setq thread (car roots))
4633 (setq thread (cons subject (gnus-sort-threads roots))))))
4634 (let (threads)
4635 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4636 (when line
4637 (goto-char (point-min))
4638 (forward-line (1- line)))
eec82323
LMI
4639 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4640 (if gnus-show-threads
4641 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4642 (gnus-summary-prepare-unthreaded thread))
4643 (setq data (nreverse gnus-newsgroup-data))
4644 (setq threads gnus-newsgroup-threads))
4645 ;; We splice the new data into the data structure.
6748645f
LMI
4646 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4647 ;;!!! then we want to insert at the beginning of the buffer.
4648 ;;!!! That happens to be true with Gnus now, but that may
4649 ;;!!! change in the future. Perhaps.
4650 (gnus-data-enter-list
4651 (if line nil current) data (- (point) old-pos))
4652 (setq gnus-newsgroup-threads
4653 (nconc threads gnus-newsgroup-threads))
4654 (gnus-data-compute-positions))))
eec82323
LMI
4655
4656(defun gnus-number-to-header (number)
4657 "Return the header for article NUMBER."
4658 (let ((headers gnus-newsgroup-headers))
4659 (while (and headers
4660 (not (= number (mail-header-number (car headers)))))
4661 (pop headers))
4662 (when headers
4663 (car headers))))
4664
6748645f 4665(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4666 "Return the headers of the GENERATIONeth parent of HEADERS."
4667 (unless generation
4668 (setq generation 1))
a8151ef7 4669 (let ((parent t)
6748645f 4670 (headers in-headers)
a8151ef7 4671 references)
6748645f
LMI
4672 (while (and parent
4673 (not (zerop generation))
4674 (setq references (mail-header-references headers)))
4675 (setq headers (if (and references
4676 (setq parent (gnus-parent-id references)))
4677 (car (gnus-id-to-thread parent))
4678 nil))
4679 (decf generation))
4680 (and (not (eq headers in-headers))
4681 headers)))
eec82323
LMI
4682
4683(defun gnus-id-to-thread (id)
4684 "Return the (sub-)thread where ID appears."
4685 (gnus-gethash id gnus-newsgroup-dependencies))
4686
4687(defun gnus-id-to-article (id)
4688 "Return the article number of ID."
4689 (let ((thread (gnus-id-to-thread id)))
4690 (when (and thread
4691 (car thread))
4692 (mail-header-number (car thread)))))
4693
4694(defun gnus-id-to-header (id)
4695 "Return the article headers of ID."
4696 (car (gnus-id-to-thread id)))
4697
4698(defun gnus-article-displayed-root-p (article)
4699 "Say whether ARTICLE is a root(ish) article."
4700 (let ((level (gnus-summary-thread-level article))
4701 (refs (mail-header-references (gnus-summary-article-header article)))
4702 particle)
4703 (cond
4704 ((null level) nil)
4705 ((zerop level) t)
4706 ((null refs) t)
4707 ((null (gnus-parent-id refs)) t)
4708 ((and (= 1 level)
4709 (null (setq particle (gnus-id-to-article
4710 (gnus-parent-id refs))))
4711 (null (gnus-summary-thread-level particle)))))))
4712
4713(defun gnus-root-id (id)
4714 "Return the id of the root of the thread where ID appears."
4715 (let (last-id prev)
6748645f 4716 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4717 (setq last-id id
4718 id (gnus-parent-id (mail-header-references prev))))
4719 last-id))
4720
6748645f
LMI
4721(defun gnus-articles-in-thread (thread)
4722 "Return the list of articles in THREAD."
4723 (cons (mail-header-number (car thread))
4724 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4725
eec82323
LMI
4726(defun gnus-remove-thread (id &optional dont-remove)
4727 "Remove the thread that has ID in it."
6748645f 4728 (let (headers thread last-id)
eec82323 4729 ;; First go up in this thread until we find the root.
6748645f
LMI
4730 (setq last-id (gnus-root-id id)
4731 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4732 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4733 ;; been gathered into some loose thread, so we have to search
4734 ;; through the threads to find the thread we wanted.
4735 (let ((threads gnus-newsgroup-threads)
4736 sub)
4737 (while threads
4738 (setq sub (car threads))
4739 (if (stringp (car sub))
4740 ;; This is a gathered thread, so we look at the roots
4741 ;; below it to find whether this article is in this
4742 ;; gathered root.
4743 (progn
4744 (setq sub (cdr sub))
4745 (while sub
4746 (when (member (caar sub) headers)
4747 (setq thread (car threads)
4748 threads nil
4749 sub nil))
4750 (setq sub (cdr sub))))
4751 ;; It's an ordinary thread, so we check it.
4752 (when (eq (car sub) (car headers))
4753 (setq thread sub
4754 threads nil)))
4755 (setq threads (cdr threads)))
4756 ;; If this article is in no thread, then it's a root.
4757 (if thread
4758 (unless dont-remove
4759 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4760 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4761 (when thread
4762 (prog1
4763 thread ; We return this thread.
4764 (unless dont-remove
4765 (if (stringp (car thread))
4766 (progn
4767 ;; If we use dummy roots, then we have to remove the
4768 ;; dummy root as well.
4769 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4770 ;; We go to the dummy root by going to
4771 ;; the first sub-"thread", and then one line up.
4772 (gnus-summary-goto-article
4773 (mail-header-number (caadr thread)))
4774 (forward-line -1)
eec82323
LMI
4775 (gnus-delete-line)
4776 (gnus-data-compute-positions))
4777 (setq thread (cdr thread))
4778 (while thread
4779 (gnus-remove-thread-1 (car thread))
4780 (setq thread (cdr thread))))
4781 (gnus-remove-thread-1 thread))))))))
4782
4783(defun gnus-remove-thread-1 (thread)
4784 "Remove the thread THREAD recursively."
4785 (let ((number (mail-header-number (pop thread)))
4786 d)
4787 (setq thread (reverse thread))
4788 (while thread
4789 (gnus-remove-thread-1 (pop thread)))
4790 (when (setq d (gnus-data-find number))
4791 (goto-char (gnus-data-pos d))
16409b0b 4792 (gnus-summary-show-thread)
eec82323
LMI
4793 (gnus-data-remove
4794 number
01c52d31 4795 (- (point-at-bol)
eec82323 4796 (prog1
01c52d31 4797 (1+ (point-at-eol))
eec82323
LMI
4798 (gnus-delete-line)))))))
4799
4921bbdd 4800(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4801 (sort (mapcar (lambda (thread)
4802 (cons (car thread)
4803 (and (cdr thread)
4921bbdd 4804 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4805 threads) func))
4806
4921bbdd
CY
4807(defun gnus-sort-threads-loop (threads func)
4808 (let* ((superthread (cons nil threads))
4809 (stack (list (cons superthread threads)))
4810 remaining-threads thread)
4811 (while stack
4812 (setq remaining-threads (cdr (car stack)))
4813 (if remaining-threads
4814 (progn (setq thread (car remaining-threads))
4815 (setcdr (car stack) (cdr remaining-threads))
4816 (if (cdr thread)
4817 (push (cons thread (cdr thread)) stack)))
4818 (setq thread (caar stack))
4819 (setcdr thread (sort (cdr thread) func))
4820 (pop stack)))
4821 (cdr superthread)))
4822
eec82323
LMI
4823(defun gnus-sort-threads (threads)
4824 "Sort THREADS."
4825 (if (not gnus-thread-sort-functions)
4826 threads
6748645f 4827 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4828 (prog1
4829 (condition-case nil
4830 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4831 (gnus-sort-threads-recursive
4832 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4833 ;; Even after binding max-lisp-eval-depth, the recursive
4834 ;; sorter might fail for very long threads. In that case,
4835 ;; try using a (less well-tested) non-recursive sorter.
3d6e7a43
KY
4836 (error (gnus-message 9 "Sorting threads with loop...")
4837 (gnus-sort-threads-loop
4921bbdd
CY
4838 threads (gnus-make-sort-function
4839 gnus-thread-sort-functions))))
4840 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4841
4842(defun gnus-sort-articles (articles)
4843 "Sort ARTICLES."
4844 (when gnus-article-sort-functions
4845 (gnus-message 7 "Sorting articles...")
4846 (prog1
4847 (setq gnus-newsgroup-headers
4848 (sort articles (gnus-make-sort-function
4849 gnus-article-sort-functions)))
4850 (gnus-message 7 "Sorting articles...done"))))
4851
4852;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4853(defmacro gnus-thread-header (thread)
16409b0b
GM
4854 "Return header of first article in THREAD.
4855Note that THREAD must never, ever be anything else than a variable -
4856using some other form will lead to serious barfage."
eec82323
LMI
4857 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4858 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4859 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4860 (vector thread) 2))
4861
4862(defsubst gnus-article-sort-by-number (h1 h2)
4863 "Sort articles by article number."
4864 (< (mail-header-number h1)
4865 (mail-header-number h2)))
4866
4867(defun gnus-thread-sort-by-number (h1 h2)
4868 "Sort threads by root article number."
4869 (gnus-article-sort-by-number
4870 (gnus-thread-header h1) (gnus-thread-header h2)))
4871
23f87bed 4872(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4873 "Sort articles randomly."
23f87bed
MB
4874 (zerop (random 2)))
4875
4876(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4877 "Sort threads randomly."
23f87bed
MB
4878 (gnus-article-sort-by-random
4879 (gnus-thread-header h1) (gnus-thread-header h2)))
4880
eec82323
LMI
4881(defsubst gnus-article-sort-by-lines (h1 h2)
4882 "Sort articles by article Lines header."
4883 (< (mail-header-lines h1)
4884 (mail-header-lines h2)))
4885
4886(defun gnus-thread-sort-by-lines (h1 h2)
4887 "Sort threads by root article Lines header."
4888 (gnus-article-sort-by-lines
4889 (gnus-thread-header h1) (gnus-thread-header h2)))
4890
16409b0b
GM
4891(defsubst gnus-article-sort-by-chars (h1 h2)
4892 "Sort articles by octet length."
4893 (< (mail-header-chars h1)
4894 (mail-header-chars h2)))
4895
4896(defun gnus-thread-sort-by-chars (h1 h2)
4897 "Sort threads by root article octet length."
4898 (gnus-article-sort-by-chars
4899 (gnus-thread-header h1) (gnus-thread-header h2)))
4900
eec82323
LMI
4901(defsubst gnus-article-sort-by-author (h1 h2)
4902 "Sort articles by root author."
b4fde39f 4903 (gnus-string<
eec82323
LMI
4904 (let ((extract (funcall
4905 gnus-extract-address-components
4906 (mail-header-from h1))))
4907 (or (car extract) (cadr extract) ""))
4908 (let ((extract (funcall
4909 gnus-extract-address-components
4910 (mail-header-from h2))))
4911 (or (car extract) (cadr extract) ""))))
4912
4913(defun gnus-thread-sort-by-author (h1 h2)
4914 "Sort threads by root author."
4915 (gnus-article-sort-by-author
4916 (gnus-thread-header h1) (gnus-thread-header h2)))
4917
01c52d31
MB
4918(defsubst gnus-article-sort-by-recipient (h1 h2)
4919 "Sort articles by recipient."
4920 (gnus-string<
4921 (let ((extract (funcall
4922 gnus-extract-address-components
4923 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4924 (or (car extract) (cadr extract)))
4925 (let ((extract (funcall
4926 gnus-extract-address-components
4927 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4928 (or (car extract) (cadr extract)))))
4929
4930(defun gnus-thread-sort-by-recipient (h1 h2)
4931 "Sort threads by root recipient."
4932 (gnus-article-sort-by-recipient
4933 (gnus-thread-header h1) (gnus-thread-header h2)))
4934
eec82323
LMI
4935(defsubst gnus-article-sort-by-subject (h1 h2)
4936 "Sort articles by root subject."
b4fde39f 4937 (gnus-string<
eec82323
LMI
4938 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4939 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4940
4941(defun gnus-thread-sort-by-subject (h1 h2)
4942 "Sort threads by root subject."
4943 (gnus-article-sort-by-subject
4944 (gnus-thread-header h1) (gnus-thread-header h2)))
4945
4946(defsubst gnus-article-sort-by-date (h1 h2)
4947 "Sort articles by root article date."
16409b0b 4948 (time-less-p
eec82323
LMI
4949 (gnus-date-get-time (mail-header-date h1))
4950 (gnus-date-get-time (mail-header-date h2))))
4951
4952(defun gnus-thread-sort-by-date (h1 h2)
4953 "Sort threads by root article date."
4954 (gnus-article-sort-by-date
4955 (gnus-thread-header h1) (gnus-thread-header h2)))
4956
4957(defsubst gnus-article-sort-by-score (h1 h2)
4958 "Sort articles by root article score.
4959Unscored articles will be counted as having a score of zero."
4960 (> (or (cdr (assq (mail-header-number h1)
4961 gnus-newsgroup-scored))
4962 gnus-summary-default-score 0)
4963 (or (cdr (assq (mail-header-number h2)
4964 gnus-newsgroup-scored))
4965 gnus-summary-default-score 0)))
4966
4967(defun gnus-thread-sort-by-score (h1 h2)
4968 "Sort threads by root article score."
4969 (gnus-article-sort-by-score
4970 (gnus-thread-header h1) (gnus-thread-header h2)))
4971
4972(defun gnus-thread-sort-by-total-score (h1 h2)
4973 "Sort threads by the sum of all scores in the thread.
4974Unscored articles will be counted as having a score of zero."
4975 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4976
4977(defun gnus-thread-total-score (thread)
16409b0b 4978 ;; This function find the total score of THREAD.
23f87bed
MB
4979 (cond
4980 ((null thread)
4981 0)
4982 ((consp thread)
4983 (if (stringp (car thread))
4984 (apply gnus-thread-score-function 0
4985 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4986 (gnus-thread-total-score-1 thread)))
4987 (t
4988 (gnus-thread-total-score-1 (list thread)))))
4989
4990(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4991 "Sort threads such that the thread with the most recently arrived article comes first."
4992 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4993
4994(defun gnus-thread-highest-number (thread)
4995 "Return the highest article number in THREAD."
4996 (apply 'max (mapcar (lambda (header)
4997 (mail-header-number header))
4998 (message-flatten-list thread))))
4999
5000(defun gnus-thread-sort-by-most-recent-date (h1 h2)
5001 "Sort threads such that the thread with the most recently dated article comes first."
5002 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
5003
3d6e7a43
KY
5004; Since this is called not only to sort the top-level threads, but
5005; also in recursive sorts to order the articles within a thread, each
5006; article will be processed many times. Thus it speeds things up
5007; quite a bit to use gnus-date-get-time, which caches the time value.
23f87bed
MB
5008(defun gnus-thread-latest-date (thread)
5009 "Return the highest article date in THREAD."
3d6e7a43
KY
5010 (apply 'max
5011 (mapcar (lambda (header) (gnus-float-time
5012 (gnus-date-get-time
5013 (mail-header-date header))))
5014 (message-flatten-list thread))))
eec82323
LMI
5015
5016(defun gnus-thread-total-score-1 (root)
5017 ;; This function find the total score of the thread below ROOT.
5018 (setq root (car root))
5019 (apply gnus-thread-score-function
5020 (or (append
5021 (mapcar 'gnus-thread-total-score
6748645f 5022 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5023 (when (> (mail-header-number root) 0)
5024 (list (or (cdr (assq (mail-header-number root)
5025 gnus-newsgroup-scored))
5026 gnus-summary-default-score 0))))
5027 (list gnus-summary-default-score)
5028 '(0))))
5029
5030;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5031(defvar gnus-tmp-prev-subject nil)
5032(defvar gnus-tmp-false-parent nil)
5033(defvar gnus-tmp-root-expunged nil)
5034(defvar gnus-tmp-dummy-line nil)
5035
16409b0b
GM
5036(defun gnus-extra-header (type &optional header)
5037 "Return the extra header of TYPE."
5038 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5039 ""))
5040
23f87bed
MB
5041(defvar gnus-tmp-thread-tree-header-string "")
5042
5043(defcustom gnus-sum-thread-tree-root "> "
5044 "With %B spec, used for the root of a thread.
5045If nil, use subject instead."
bf247b6e 5046 :version "22.1"
ad136a7c 5047 :type '(radio (const :format "%v " nil) string)
23f87bed 5048 :group 'gnus-thread)
01c52d31 5049
23f87bed
MB
5050(defcustom gnus-sum-thread-tree-false-root "> "
5051 "With %B spec, used for a false root of a thread.
5052If nil, use subject instead."
bf247b6e 5053 :version "22.1"
ad136a7c 5054 :type '(radio (const :format "%v " nil) string)
23f87bed 5055 :group 'gnus-thread)
01c52d31 5056
23f87bed
MB
5057(defcustom gnus-sum-thread-tree-single-indent ""
5058 "With %B spec, used for a thread with just one message.
5059If nil, use subject instead."
bf247b6e 5060 :version "22.1"
ad136a7c 5061 :type '(radio (const :format "%v " nil) string)
23f87bed 5062 :group 'gnus-thread)
01c52d31 5063
23f87bed
MB
5064(defcustom gnus-sum-thread-tree-vertical "| "
5065 "With %B spec, used for drawing a vertical line."
bf247b6e 5066 :version "22.1"
23f87bed
MB
5067 :type 'string
5068 :group 'gnus-thread)
01c52d31 5069
23f87bed
MB
5070(defcustom gnus-sum-thread-tree-indent " "
5071 "With %B spec, used for indenting."
bf247b6e 5072 :version "22.1"
23f87bed
MB
5073 :type 'string
5074 :group 'gnus-thread)
01c52d31 5075
23f87bed
MB
5076(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5077 "With %B spec, used for a leaf with brothers."
bf247b6e 5078 :version "22.1"
23f87bed
MB
5079 :type 'string
5080 :group 'gnus-thread)
01c52d31 5081
23f87bed
MB
5082(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5083 "With %B spec, used for a leaf without brothers."
bf247b6e 5084 :version "22.1"
23f87bed
MB
5085 :type 'string
5086 :group 'gnus-thread)
5087
1fc34624
GM
5088(defcustom gnus-summary-display-while-building nil
5089 "If non-nil, show and update the summary buffer as it's being built.
5090If the value is t, update the buffer after every line is inserted. If
5091the value is an integer (N), update the display every N lines."
5092 :version "22.1"
5093 :group 'gnus-thread
5094 :type '(choice (const :tag "off" nil)
5095 number
5096 (const :tag "frequently" t)))
5097
eec82323
LMI
5098(defun gnus-summary-prepare-threads (threads)
5099 "Prepare summary buffer from THREADS and indentation LEVEL.
5100THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5101or a straight list of headers."
5102 (gnus-message 7 "Generating summary...")
5103
5104 (setq gnus-newsgroup-threads threads)
5105 (beginning-of-line)
5106
5107 (let ((gnus-tmp-level 0)
5108 (default-score (or gnus-summary-default-score 0))
5109 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5110 (building-line-count gnus-summary-display-while-building)
5111 (building-count (integerp gnus-summary-display-while-building))
eec82323 5112 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5113 new-roots gnus-tmp-new-adopts thread-end simp-subject
5114 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5115 gnus-tmp-replied gnus-tmp-subject-or-nil
5116 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5117 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5118 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5119 tree-stack)
eec82323 5120
23f87bed
MB
5121 (setq gnus-tmp-prev-subject nil
5122 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5123
5124 (if (vectorp (car threads))
5125 ;; If this is a straight (sic) list of headers, then a
5126 ;; threaded summary display isn't required, so we just create
5127 ;; an unthreaded one.
5128 (gnus-summary-prepare-unthreaded threads)
5129
5130 ;; Do the threaded display.
5131
23f87bed
MB
5132 (if gnus-summary-display-while-building
5133 (switch-to-buffer (buffer-name)))
eec82323
LMI
5134 (while (or threads stack gnus-tmp-new-adopts new-roots)
5135
5136 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5137 (or (not stack)
5138 (= (caar stack) 0))
5139 (not gnus-tmp-false-parent)
5140 (or gnus-tmp-new-adopts new-roots))
5141 (if gnus-tmp-new-adopts
5142 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5143 thread (list (car gnus-tmp-new-adopts))
5144 gnus-tmp-header (caar thread)
5145 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5146 (when new-roots
5147 (setq thread (list (car new-roots))
5148 gnus-tmp-header (caar thread)
5149 new-roots (cdr new-roots))))
5150
5151 (if threads
5152 ;; If there are some threads, we do them before the
5153 ;; threads on the stack.
5154 (setq thread threads
5155 gnus-tmp-header (caar thread))
5156 ;; There were no current threads, so we pop something off
5157 ;; the stack.
5158 (setq state (car stack)
5159 gnus-tmp-level (car state)
23f87bed
MB
5160 tree-stack (cadr state)
5161 thread (caddr state)
eec82323
LMI
5162 stack (cdr stack)
5163 gnus-tmp-header (caar thread))))
5164
5165 (setq gnus-tmp-false-parent nil)
5166 (setq gnus-tmp-root-expunged nil)
5167 (setq thread-end nil)
5168
5169 (if (stringp gnus-tmp-header)
5170 ;; The header is a dummy root.
5171 (cond
5172 ((eq gnus-summary-make-false-root 'adopt)
5173 ;; We let the first article adopt the rest.
5174 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5175 (cddar thread)))
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 thread (cons (list (caar thread)
5182 (cadar thread))
5183 (cdr thread)))
5184 (setq gnus-tmp-level -1
5185 gnus-tmp-false-parent t))
5186 ((eq gnus-summary-make-false-root 'empty)
5187 ;; We print adopted articles with empty subject fields.
5188 (setq gnus-tmp-gathered
5189 (nconc (mapcar
5190 (lambda (h) (mail-header-number (car h)))
5191 (cddar thread))
5192 gnus-tmp-gathered))
5193 (setq gnus-tmp-level -1))
5194 ((eq gnus-summary-make-false-root 'dummy)
5195 ;; We remember that we probably want to output a dummy
5196 ;; root.
5197 (setq gnus-tmp-dummy-line gnus-tmp-header)
5198 (setq gnus-tmp-prev-subject gnus-tmp-header))
5199 (t
5200 ;; We do not make a root for the gathered
5201 ;; sub-threads at all.
5202 (setq gnus-tmp-level -1)))
5203
5204 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5205 subject (mail-header-subject gnus-tmp-header)
5206 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5207
5208 (cond
5209 ;; If the thread has changed subject, we might want to make
5210 ;; this subthread into a root.
5211 ((and (null gnus-thread-ignore-subject)
5212 (not (zerop gnus-tmp-level))
5213 gnus-tmp-prev-subject
23f87bed 5214 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5215 (setq new-roots (nconc new-roots (list (car thread)))
5216 thread-end t
5217 gnus-tmp-header nil))
5218 ;; If the article lies outside the current limit,
5219 ;; then we do not display it.
5220 ((not (memq number gnus-newsgroup-limit))
5221 (setq gnus-tmp-gathered
5222 (nconc (mapcar
5223 (lambda (h) (mail-header-number (car h)))
5224 (cdar thread))
5225 gnus-tmp-gathered))
5226 (setq gnus-tmp-new-adopts (if (cdar thread)
5227 (append gnus-tmp-new-adopts
5228 (cdar thread))
5229 gnus-tmp-new-adopts)
5230 thread-end t
5231 gnus-tmp-header nil)
5232 (when (zerop gnus-tmp-level)
5233 (setq gnus-tmp-root-expunged t)))
5234 ;; Perhaps this article is to be marked as read?
5235 ((and gnus-summary-mark-below
5236 (< (or (cdr (assq number gnus-newsgroup-scored))
5237 default-score)
5238 gnus-summary-mark-below)
5239 ;; Don't touch sparse articles.
5240 (not (gnus-summary-article-sparse-p number))
5241 (not (gnus-summary-article-ancient-p number)))
5242 (setq gnus-newsgroup-unreads
5243 (delq number gnus-newsgroup-unreads))
5244 (if gnus-newsgroup-auto-expire
23f87bed
MB
5245 (setq gnus-newsgroup-expirable
5246 (gnus-add-to-sorted-list
5247 gnus-newsgroup-expirable number))
eec82323
LMI
5248 (push (cons number gnus-low-score-mark)
5249 gnus-newsgroup-reads))))
5250
5251 (when gnus-tmp-header
5252 ;; We may have an old dummy line to output before this
5253 ;; article.
6748645f
LMI
5254 (when (and gnus-tmp-dummy-line
5255 (gnus-subject-equal
5256 gnus-tmp-dummy-line
5257 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5258 (gnus-summary-insert-dummy-line
5259 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5260 (setq gnus-tmp-dummy-line nil))
5261
5262 ;; Compute the mark.
5263 (setq gnus-tmp-unread (gnus-article-mark number))
5264
5265 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5266 gnus-tmp-header gnus-tmp-level)
5267 gnus-newsgroup-data)
5268
5269 ;; Actually insert the line.
5270 (setq
5271 gnus-tmp-subject-or-nil
5272 (cond
5273 ((and gnus-thread-ignore-subject
5274 gnus-tmp-prev-subject
23f87bed 5275 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5276 subject)
5277 ((zerop gnus-tmp-level)
5278 (if (and (eq gnus-summary-make-false-root 'empty)
5279 (memq number gnus-tmp-gathered)
5280 gnus-tmp-prev-subject
23f87bed 5281 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5282 gnus-summary-same-subject
5283 subject))
5284 (t gnus-summary-same-subject)))
5285 (if (and (eq gnus-summary-make-false-root 'adopt)
5286 (= gnus-tmp-level 1)
5287 (memq number gnus-tmp-gathered))
5288 (setq gnus-tmp-opening-bracket ?\<
5289 gnus-tmp-closing-bracket ?\>)
5290 (setq gnus-tmp-opening-bracket ?\[
5291 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5292 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5293 (gnus-make-thread-indent-array
5294 (max (* 2 (length gnus-thread-indent-array))
5295 gnus-tmp-level)))
eec82323
LMI
5296 (setq
5297 gnus-tmp-indentation
5298 (aref gnus-thread-indent-array gnus-tmp-level)
5299 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5300 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5301 gnus-summary-default-score 0)
5302 gnus-tmp-score-char
5303 (if (or (null gnus-summary-default-score)
5304 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5305 gnus-summary-zcore-fuzz))
23f87bed 5306 ? ;Whitespace
eec82323
LMI
5307 (if (< gnus-tmp-score gnus-summary-default-score)
5308 gnus-score-below-mark gnus-score-over-mark))
5309 gnus-tmp-replied
5310 (cond ((memq number gnus-newsgroup-processable)
5311 gnus-process-mark)
5312 ((memq number gnus-newsgroup-cached)
5313 gnus-cached-mark)
5314 ((memq number gnus-newsgroup-replied)
5315 gnus-replied-mark)
23f87bed
MB
5316 ((memq number gnus-newsgroup-forwarded)
5317 gnus-forwarded-mark)
eec82323
LMI
5318 ((memq number gnus-newsgroup-saved)
5319 gnus-saved-mark)
23f87bed
MB
5320 ((memq number gnus-newsgroup-recent)
5321 gnus-recent-mark)
5322 ((memq number gnus-newsgroup-unseen)
5323 gnus-unseen-mark)
5324 (t gnus-no-mark))
5325 gnus-tmp-downloaded
5326 (cond ((memq number gnus-newsgroup-undownloaded)
5327 gnus-undownloaded-mark)
5328 (gnus-newsgroup-agentized
5329 gnus-downloaded-mark)
5330 (t
5331 gnus-no-mark))
eec82323
LMI
5332 gnus-tmp-from (mail-header-from gnus-tmp-header)
5333 gnus-tmp-name
5334 (cond
5335 ((string-match "<[^>]+> *$" gnus-tmp-from)
5336 (setq beg-match (match-beginning 0))
23f87bed
MB
5337 (or (and (string-match "^\".+\"" gnus-tmp-from)
5338 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5339 (substring gnus-tmp-from 0 beg-match)))
5340 ((string-match "(.+)" gnus-tmp-from)
5341 (substring gnus-tmp-from
5342 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5343 (t gnus-tmp-from))
5344
5345 ;; Do the %B string
5346 gnus-tmp-thread-tree-header-string
5347 (cond
5348 ((not gnus-show-threads) "")
5349 ((zerop gnus-tmp-level)
5350 (cond ((cdar thread)
5351 (or gnus-sum-thread-tree-root subject))
5352 (gnus-tmp-new-adopts
5353 (or gnus-sum-thread-tree-false-root subject))
5354 (t
5355 (or gnus-sum-thread-tree-single-indent subject))))
5356 (t
5357 (concat (apply 'concat
5358 (mapcar (lambda (item)
5359 (if (= item 1)
5360 gnus-sum-thread-tree-vertical
5361 gnus-sum-thread-tree-indent))
5362 (cdr (reverse tree-stack))))
5363 (if (nth 1 thread)
5364 gnus-sum-thread-tree-leaf-with-other
5365 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5366 (when (string= gnus-tmp-name "")
5367 (setq gnus-tmp-name gnus-tmp-from))
5368 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5369 (setq gnus-tmp-lines -1))
5370 (if (= gnus-tmp-lines -1)
5371 (setq gnus-tmp-lines "?")
5372 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5373 (gnus-put-text-property
64763fe3
MB
5374 (point)
5375 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5376 'gnus-number number)
64763fe3
MB
5377 (when gnus-visual-p
5378 (forward-line -1)
a9ec34f4
LMI
5379 (gnus-summary-highlight-line)
5380 (when gnus-summary-update-hook
5381 (gnus-run-hooks 'gnus-summary-update-hook))
64763fe3 5382 (forward-line 1))
eec82323 5383
64763fe3 5384 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5385
5386 (when (nth 1 thread)
23f87bed
MB
5387 (push (list (max 0 gnus-tmp-level)
5388 (copy-sequence tree-stack)
5389 (nthcdr 1 thread))
5390 stack))
5391 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5392 (incf gnus-tmp-level)
5393 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5394 (if gnus-summary-display-while-building
5395 (if building-count
5396 (progn
5397 ;; use a set frequency
5398 (setq building-line-count (1- building-line-count))
5399 (when (= building-line-count 0)
5400 (sit-for 0)
5401 (setq building-line-count
5402 gnus-summary-display-while-building)))
5403 ;; always
5404 (sit-for 0)))
eec82323
LMI
5405 (unless threads
5406 (setq gnus-tmp-level 0)))))
5407 (gnus-message 7 "Generating summary...done"))
5408
5409(defun gnus-summary-prepare-unthreaded (headers)
5410 "Generate an unthreaded summary buffer based on HEADERS."
5411 (let (header number mark)
5412
5413 (beginning-of-line)
5414
5415 (while headers
5416 ;; We may have to root out some bad articles...
5417 (when (memq (setq number (mail-header-number
5418 (setq header (pop headers))))
5419 gnus-newsgroup-limit)
5420 ;; Mark article as read when it has a low score.
5421 (when (and gnus-summary-mark-below
5422 (< (or (cdr (assq number gnus-newsgroup-scored))
5423 gnus-summary-default-score 0)
5424 gnus-summary-mark-below)
5425 (not (gnus-summary-article-ancient-p number)))
5426 (setq gnus-newsgroup-unreads
5427 (delq number gnus-newsgroup-unreads))
5428 (if gnus-newsgroup-auto-expire
5429 (push number gnus-newsgroup-expirable)
5430 (push (cons number gnus-low-score-mark)
5431 gnus-newsgroup-reads)))
5432
5433 (setq mark (gnus-article-mark number))
5434 (push (gnus-data-make number mark (1+ (point)) header 0)
5435 gnus-newsgroup-data)
5436 (gnus-summary-insert-line
5437 header 0 number
23f87bed 5438 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5439 mark (memq number gnus-newsgroup-replied)
5440 (memq number gnus-newsgroup-expirable)
5441 (mail-header-subject header) nil
5442 (cdr (assq number gnus-newsgroup-scored))
5443 (memq number gnus-newsgroup-processable))))))
5444
16409b0b
GM
5445(defun gnus-summary-remove-list-identifiers ()
5446 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5447 (let ((regexp (if (consp gnus-list-identifiers)
5448 (mapconcat 'identity gnus-list-identifiers " *\\|")
5449 gnus-list-identifiers))
5450 changed subject)
5451 (when regexp
01c52d31 5452 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5453 (dolist (header gnus-newsgroup-headers)
5454 (setq subject (mail-header-subject header)
5455 changed nil)
01c52d31 5456 (while (string-match regexp subject)
23f87bed 5457 (setq subject
01c52d31 5458 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5459 (substring subject (match-end 0)))
5460 changed t))
23f87bed 5461 (when changed
01c52d31
MB
5462 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5463 (setq subject
5464 (concat (substring subject 0 (match-beginning 1))
5465 (substring subject (match-end 1)))))
23f87bed
MB
5466 (mail-header-set-subject header subject))))))
5467
5468(defun gnus-fetch-headers (articles)
5469 "Fetch headers of ARTICLES."
5470 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5471 (gnus-message 5 "Fetching headers for %s..." name)
5472 (prog1
5473 (if (eq 'nov
5474 (setq gnus-headers-retrieved-by
5475 (gnus-retrieve-headers
5476 articles gnus-newsgroup-name
5477 ;; We might want to fetch old headers, but
5478 ;; not if there is only 1 article.
5479 (and (or (and
5480 (not (eq gnus-fetch-old-headers 'some))
5481 (not (numberp gnus-fetch-old-headers)))
5482 (> (length articles) 1))
5483 gnus-fetch-old-headers))))
5484 (gnus-get-newsgroup-headers-xover
5485 articles nil nil gnus-newsgroup-name t)
5486 (gnus-get-newsgroup-headers))
5487 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5488
6748645f 5489(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5490 "Select newsgroup GROUP.
6748645f
LMI
5491If READ-ALL is non-nil, all articles in the group are selected.
5492If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5493 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5494 ;;!!! Dirty hack; should be removed.
5495 (gnus-summary-ignore-duplicates
23f87bed 5496 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5497 t
5498 gnus-summary-ignore-duplicates))
5499 (info (nth 2 entry))
01c52d31 5500 charset articles fetched-articles cached)
eec82323
LMI
5501
5502 (unless (gnus-check-server
475e0e0c
GM
5503 (set (make-local-variable 'gnus-current-select-method)
5504 (gnus-find-method-for-group group)))
eec82323 5505 (error "Couldn't open server"))
01c52d31 5506 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5507
5508 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5509 (gnus-activate-group group) ; Or we can activate it...
5510 (progn ; Or we bug out.
5511 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5512 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5513 (error
5514 "Couldn't activate group %s: %s"
5515 (mm-decode-coding-string group charset)
5516 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5517
5518 (unless (gnus-request-group group t)
20a673b2
KY
5519 (when (equal major-mode 'gnus-summary-mode)
5520 (gnus-kill-buffer (current-buffer)))
5521 (error "Couldn't request group %s: %s"
5522 (mm-decode-coding-string group charset)
5523 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5524
23f87bed 5525 (when gnus-agent
54506618 5526 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5527
23f87bed
MB
5528 (setq gnus-summary-use-undownloaded-faces
5529 (gnus-agent-find-parameter
5530 group
5531 'agent-enable-undownloaded-faces)))
5532
5533 (setq gnus-newsgroup-name group
5534 gnus-newsgroup-unselected nil
5535 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5536
5537 (let ((display (gnus-group-find-parameter group 'display)))
5538 (setq gnus-newsgroup-display
5539 (cond
5540 ((not (zerop (or (car-safe read-all) 0)))
5541 ;; The user entered the group with C-u SPC/RET, let's show
5542 ;; all articles.
5543 'gnus-not-ignore)
5544 ((eq display 'all)
5545 'gnus-not-ignore)
5546 ((arrayp display)
5547 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5548 ((numberp display)
5549 ;; The following is probably the "correct" solution, but
5550 ;; it makes Gnus fetch all headers and then limit the
5551 ;; articles (which is slow), so instead we hack the
5552 ;; select-articles parameter instead. -- Simon Josefsson
5553 ;; <jas@kth.se>
5554 ;;
5555 ;; (gnus-byte-compile
5556 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5557 ;; display)))))
5558 (setq select-articles
5559 (gnus-uncompress-range
5560 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5561 (if (> tmp 0)
5562 tmp
5563 1))
5564 (cdr (gnus-active group)))))
5565 nil)
5566 (t
5567 nil))))
eec82323 5568
23f87bed 5569 (gnus-summary-setup-default-charset)
eec82323
LMI
5570
5571 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5572 (when (gnus-virtual-group-p group)
5573 (setq cached gnus-newsgroup-cached))
5574
5575 (setq gnus-newsgroup-unreads
23f87bed
MB
5576 (gnus-sorted-ndifference
5577 (gnus-sorted-ndifference gnus-newsgroup-unreads
5578 gnus-newsgroup-marked)
eec82323
LMI
5579 gnus-newsgroup-dormant))
5580
5581 (setq gnus-newsgroup-processable nil)
5582
5583 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5584
23f87bed
MB
5585 ;; Adjust and set lists of article marks.
5586 (when info
5587 (gnus-adjust-marked-articles info))
6748645f
LMI
5588 (if (setq articles select-articles)
5589 (setq gnus-newsgroup-unselected
23f87bed 5590 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5591 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5592
5593 (cond
5594 ((null articles)
5595 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5596 'quit)
5597 ((eq articles 0) nil)
5598 (t
5599 ;; Init the dependencies hash table.
5600 (setq gnus-newsgroup-dependencies
5601 (gnus-make-hashtable (length articles)))
16409b0b 5602 (gnus-set-global-variables)
eec82323 5603 ;; Retrieve the headers and read them in.
23f87bed
MB
5604
5605 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5606
5607 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5608 (when cached
5609 (setq gnus-newsgroup-cached cached))
5610
5611 ;; Suppress duplicates?
5612 (when gnus-suppress-duplicates
5613 (gnus-dup-suppress-articles))
5614
5615 ;; Set the initial limit.
5616 (setq gnus-newsgroup-limit (copy-sequence articles))
5617 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5618 (setq fetched-articles
5619 (mapcar (lambda (headers) (mail-header-number headers))
5620 gnus-newsgroup-headers))
5621 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5622 (setq gnus-newsgroup-unreads
23f87bed
MB
5623 (gnus-sorted-nintersection
5624 gnus-newsgroup-unreads fetched-articles))
5625 (gnus-compute-unseen-list)
5626
eec82323
LMI
5627 ;; Removed marked articles that do not exist.
5628 (gnus-update-missing-marks
23f87bed 5629 (gnus-sorted-difference articles fetched-articles))
eec82323 5630 ;; We might want to build some more threads first.
6748645f
LMI
5631 (when (and gnus-fetch-old-headers
5632 (eq gnus-headers-retrieved-by 'nov))
5633 (if (eq gnus-fetch-old-headers 'invisible)
5634 (gnus-build-all-threads)
5635 (gnus-build-old-threads)))
5636 ;; Let the Gnus agent mark articles as read.
5637 (when gnus-agent
5638 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5639 ;; Remove list identifiers from subject
5640 (when gnus-list-identifiers
5641 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5642 ;; Check whether auto-expire is to be done in this group.
5643 (setq gnus-newsgroup-auto-expire
5644 (gnus-group-auto-expirable-p group))
5645 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5646 (unless (and gnus-single-article-buffer
5647 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5648 (gnus-article-setup-buffer))
5649 ;; First and last article in this newsgroup.
5650 (when gnus-newsgroup-headers
5651 (setq gnus-newsgroup-begin
5652 (mail-header-number (car gnus-newsgroup-headers))
5653 gnus-newsgroup-end
5654 (mail-header-number
5655 (gnus-last-element gnus-newsgroup-headers))))
5656 ;; GROUP is successfully selected.
5657 (or gnus-newsgroup-headers t)))))
5658
23f87bed
MB
5659(defun gnus-compute-unseen-list ()
5660 ;; The `seen' marks are treated specially.
5661 (if (not gnus-newsgroup-seen)
5662 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5663 (setq gnus-newsgroup-unseen
5664 (gnus-inverse-list-range-intersection
5665 gnus-newsgroup-articles gnus-newsgroup-seen))))
5666
d09ae6ca
GM
5667(declare-function gnus-get-predicate "gnus-agent" (predicate))
5668
23f87bed
MB
5669(defun gnus-summary-display-make-predicate (display)
5670 (require 'gnus-agent)
5671 (when (= (length display) 1)
5672 (setq display (car display)))
5673 (unless gnus-summary-display-cache
5674 (dolist (elem (append '((unread . unread)
5675 (read . read)
5676 (unseen . unseen))
5677 gnus-article-mark-lists))
5678 (push (cons (cdr elem)
5679 (gnus-byte-compile
5680 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5681 gnus-summary-display-cache)))
5682 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5683 (gnus-category-predicate-cache gnus-summary-display-cache))
5684 (gnus-get-predicate display)))
5685
5686;; Uses the dynamically bound `number' variable.
9efa445f 5687(defvar number)
23f87bed
MB
5688(defun gnus-article-marked-p (type &optional article)
5689 (let ((article (or article number)))
5690 (cond
5691 ((eq type 'tick)
5692 (memq article gnus-newsgroup-marked))
5693 ((eq type 'spam)
5694 (memq article gnus-newsgroup-spam-marked))
5695 ((eq type 'unsend)
5696 (memq article gnus-newsgroup-unsendable))
5697 ((eq type 'undownload)
5698 (memq article gnus-newsgroup-undownloaded))
5699 ((eq type 'download)
5700 (memq article gnus-newsgroup-downloadable))
5701 ((eq type 'unread)
5702 (memq article gnus-newsgroup-unreads))
5703 ((eq type 'read)
5704 (memq article gnus-newsgroup-reads))
5705 ((eq type 'dormant)
5706 (memq article gnus-newsgroup-dormant) )
5707 ((eq type 'expire)
5708 (memq article gnus-newsgroup-expirable))
5709 ((eq type 'reply)
5710 (memq article gnus-newsgroup-replied))
5711 ((eq type 'killed)
5712 (memq article gnus-newsgroup-killed))
5713 ((eq type 'bookmark)
5714 (assq article gnus-newsgroup-bookmarks))
5715 ((eq type 'score)
5716 (assq article gnus-newsgroup-scored))
5717 ((eq type 'save)
5718 (memq article gnus-newsgroup-saved))
5719 ((eq type 'cache)
5720 (memq article gnus-newsgroup-cached))
5721 ((eq type 'forward)
5722 (memq article gnus-newsgroup-forwarded))
5723 ((eq type 'seen)
5724 (not (memq article gnus-newsgroup-unseen)))
5725 ((eq type 'recent)
5726 (memq article gnus-newsgroup-recent))
5727 (t t))))
5728
eec82323 5729(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5730 "Find out what articles the user wants to read."
26c9afc3 5731 (let* ((articles
eec82323
LMI
5732 ;; Select all articles if `read-all' is non-nil, or if there
5733 ;; are no unread articles.
5734 (if (or read-all
5735 (and (zerop (length gnus-newsgroup-marked))
5736 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5737 ;; Fetch all if the predicate is non-nil.
5738 gnus-newsgroup-display)
5739 ;; We want to select the headers for all the articles in
5740 ;; the group, so we select either all the active
5741 ;; articles in the group, or (if that's nil), the
5742 ;; articles in the cache.
16409b0b 5743 (or
4b70e299 5744 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5745 (let ((active (gnus-active group)))
5746 (gnus-uncompress-range
5747 (cons (max (car active)
4b70e299
MB
5748 (- (cdr active)
5749 gnus-newsgroup-maximum-articles
5750 -1))
11abff8e
MB
5751 (cdr active))))
5752 (gnus-uncompress-range (gnus-active group)))
16409b0b 5753 (gnus-cache-articles-in-group group))
23f87bed
MB
5754 ;; Select only the "normal" subset of articles.
5755 (gnus-sorted-nunion
5756 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5757 gnus-newsgroup-unreads)))
eec82323
LMI
5758 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5759 (scored (length scored-list))
5760 (number (length articles))
5761 (marked (+ (length gnus-newsgroup-marked)
5762 (length gnus-newsgroup-dormant)))
5763 (select
5764 (cond
5765 ((numberp read-all)
5766 read-all)
23f87bed
MB
5767 ((numberp gnus-newsgroup-display)
5768 gnus-newsgroup-display)
eec82323
LMI
5769 (t
5770 (condition-case ()
5771 (cond
5772 ((and (or (<= scored marked) (= scored number))
5773 (numberp gnus-large-newsgroup)
5774 (> number gnus-large-newsgroup))
23f87bed
MB
5775 (let* ((cursor-in-echo-area nil)
5776 (initial (gnus-parameter-large-newsgroup-initial
5777 gnus-newsgroup-name))
5778 (input
5779 (read-string
5780 (format
5781 "How many articles from %s (%s %d): "
01c52d31 5782 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5783 (if initial "max" "default")
5784 number)
5785 (if initial
5786 (cons (number-to-string initial)
5787 0)))))
eec82323
LMI
5788 (if (string-match "^[ \t]*$" input) number input)))
5789 ((and (> scored marked) (< scored number)
5790 (> (- scored number) 20))
5791 (let ((input
5792 (read-string
5793 (format "%s %s (%d scored, %d total): "
5794 "How many articles from"
23f87bed
MB
5795 (gnus-group-decoded-name group)
5796 scored number))))
eec82323
LMI
5797 (if (string-match "^[ \t]*$" input)
5798 number input)))
5799 (t number))
d4dfaa19
DL
5800 (quit
5801 (message "Quit getting the articles to read")
5802 nil))))))
eec82323
LMI
5803 (setq select (if (stringp select) (string-to-number select) select))
5804 (if (or (null select) (zerop select))
5805 select
5806 (if (and (not (zerop scored)) (<= (abs select) scored))
5807 (progn
5808 (setq articles (sort scored-list '<))
5809 (setq number (length articles)))
5810 (setq articles (copy-sequence articles)))
5811
5812 (when (< (abs select) number)
5813 (if (< select 0)
5814 ;; Select the N oldest articles.
5815 (setcdr (nthcdr (1- (abs select)) articles) nil)
5816 ;; Select the N most recent articles.
5817 (setq articles (nthcdr (- number select) articles))))
5818 (setq gnus-newsgroup-unselected
23f87bed 5819 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5820 (when gnus-alter-articles-to-read-function
23f87bed 5821 (setq articles
a1506d29 5822 (sort
16409b0b 5823 (funcall gnus-alter-articles-to-read-function
23f87bed 5824 gnus-newsgroup-name articles)
16409b0b 5825 '<)))
eec82323
LMI
5826 articles)))
5827
5828(defun gnus-killed-articles (killed articles)
5829 (let (out)
5830 (while articles
5831 (when (inline (gnus-member-of-range (car articles) killed))
5832 (push (car articles) out))
5833 (setq articles (cdr articles)))
5834 out))
5835
5836(defun gnus-uncompress-marks (marks)
5837 "Uncompress the mark ranges in MARKS."
5838 (let ((uncompressed '(score bookmark))
5839 out)
5840 (while marks
5841 (if (memq (caar marks) uncompressed)
5842 (push (car marks) out)
5843 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5844 (setq marks (cdr marks)))
5845 out))
5846
23f87bed
MB
5847(defun gnus-article-mark-to-type (mark)
5848 "Return the type of MARK."
5849 (or (cadr (assq mark gnus-article-special-mark-lists))
5850 'list))
5851
5852(defun gnus-article-unpropagatable-p (mark)
5853 "Return whether MARK should be propagated to back end."
5854 (memq mark gnus-article-unpropagated-mark-lists))
5855
eec82323 5856(defun gnus-adjust-marked-articles (info)
16409b0b 5857 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5858 (let* ((marked-lists (gnus-info-marks info))
5859 (active (gnus-active (gnus-info-group info)))
5860 (min (car active))
5861 (max (cdr active))
5862 (types gnus-article-mark-lists)
54506618
MB
5863 marks var articles article mark mark-type
5864 bgn end)
0617bb00
LMI
5865 ;; Hack to avoid adjusting marks for imap.
5866 (when (eq (car (gnus-find-method-for-group (gnus-info-group info)))
5867 'nnimap)
5868 (setq min 1))
eec82323 5869
23f87bed
MB
5870 (dolist (marks marked-lists)
5871 (setq mark (car marks)
5872 mark-type (gnus-article-mark-to-type mark)
5873 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5874
23f87bed
MB
5875 ;; We set the variable according to the type of the marks list,
5876 ;; and then adjust the marks to a subset of the active articles.
eec82323 5877 (cond
54506618 5878 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5879 ((eq mark-type 'list)
54506618
MB
5880 ;; Simultaneously uncompress and clip to active range
5881 ;; See gnus-uncompress-range for a description of possible marks
5882 (let (l lh)
5883 (if (not (cadr marks))
5884 (set var nil)
5885 (setq articles (if (numberp (cddr marks))
5886 (list (cdr marks))
5887 (cdr marks))
5888 lh (cons nil nil)
5889 l lh)
5890
5891 (while (setq article (pop articles))
5892 (cond ((consp article)
5893 (setq bgn (max (car article) min)
5894 end (min (cdr article) max))
5895 (while (<= bgn end)
5896 (setq l (setcdr l (cons bgn nil))
5897 bgn (1+ bgn))))
5898 ((and (<= min article)
5899 (>= max article))
5900 (setq l (setcdr l (cons article nil))))))
5901 (set var (cdr lh)))))
eec82323 5902 ;; Adjust assocs.
23f87bed
MB
5903 ((eq mark-type 'tuple)
5904 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5905 (when (not (listp (cdr (symbol-value var))))
5906 (set var (list (symbol-value var))))
5907 (when (not (listp (cdr articles)))
5908 (setq articles (list articles)))
eec82323
LMI
5909 (while articles
5910 (when (or (not (consp (setq article (pop articles))))
5911 (< (car article) min)
5912 (> (car article) max))
23f87bed
MB
5913 (set var (delq article (symbol-value var))))))
5914 ;; Adjust ranges (sloppily).
5915 ((eq mark-type 'range)
5916 (cond
5917 ((eq mark 'seen)
5918 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5919 ;; It should be (seen (NUM1 . NUM2)).
5920 (when (numberp (cddr marks))
5921 (setcdr marks (list (cdr marks))))
5922 (setq articles (cdr marks))
5923 (while (and articles
5924 (or (and (consp (car articles))
5925 (> min (cdar articles)))
5926 (and (numberp (car articles))
5927 (> min (car articles)))))
5928 (pop articles))
5929 (set var articles))))))))
eec82323
LMI
5930
5931(defun gnus-update-missing-marks (missing)
6748645f 5932 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5933 (when missing
23f87bed 5934 (let (var m)
eec82323 5935 ;; Go through all types.
23f87bed
MB
5936 (dolist (elem gnus-article-mark-lists)
5937 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5938 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5939 (when (symbol-value var)
5940 ;; This list has articles. So we delete all missing
5941 ;; articles from it.
5942 (setq m missing)
5943 (while m
5944 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5945
5946(defun gnus-update-marks ()
5947 "Enter the various lists of marked articles into the newsgroup info list."
5948 (let ((types gnus-article-mark-lists)
5949 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5950 type list newmarked symbol delta-marks)
eec82323 5951 (when info
16409b0b 5952 ;; Add all marks lists to the list of marks lists.
eec82323 5953 (while (setq type (pop types))
16409b0b
GM
5954 (setq list (symbol-value
5955 (setq symbol
23f87bed 5956 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5957
16409b0b 5958 (when list
eec82323
LMI
5959 ;; Get rid of the entries of the articles that have the
5960 ;; default score.
5961 (when (and (eq (cdr type) 'score)
5962 gnus-save-score
5963 list)
5964 (let* ((arts list)
5965 (prev (cons nil list))
5966 (all prev))
5967 (while arts
5968 (if (or (not (consp (car arts)))
5969 (= (cdar arts) gnus-summary-default-score))
5970 (setcdr prev (cdr arts))
5971 (setq prev arts))
5972 (setq arts (cdr arts)))
16409b0b
GM
5973 (setq list (cdr all)))))
5974
23f87bed
MB
5975 (when (eq (cdr type) 'seen)
5976 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5977
5978 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5979 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5980
23f87bed
MB
5981 (when (and (gnus-check-backend-function
5982 'request-set-mark gnus-newsgroup-name)
5983 (not (gnus-article-unpropagatable-p (cdr type))))
5984 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5985 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5986 (add (gnus-remove-from-range
5987 (gnus-copy-sequence list) old)))
5988 (when add
5989 (push (list add 'add (list (cdr type))) delta-marks))
5990 (when del
b069e5a6
G
5991 ;; Don't delete marks from outside the active range. This
5992 ;; shouldn't happen, but is a sanity check.
5993 (setq del (gnus-sorted-range-intersection
5994 (gnus-active gnus-newsgroup-name) del))
23f87bed 5995 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5996
16409b0b
GM
5997 (when list
5998 (push (cons (cdr type) list) newmarked)))
5999
6000 (when delta-marks
6001 (unless (gnus-check-group gnus-newsgroup-name)
6002 (error "Can't open server for %s" gnus-newsgroup-name))
6003 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 6004
eec82323
LMI
6005 ;; Enter these new marks into the info of the group.
6006 (if (nthcdr 3 info)
6007 (setcar (nthcdr 3 info) newmarked)
6008 ;; Add the marks lists to the end of the info.
6009 (when newmarked
6010 (setcdr (nthcdr 2 info) (list newmarked))))
6011
6012 ;; Cut off the end of the info if there's nothing else there.
6013 (let ((i 5))
6014 (while (and (> i 2)
6015 (not (nth i info)))
6016 (when (nthcdr (decf i) info)
6017 (setcdr (nthcdr i info) nil)))))))
6018
6019(defun gnus-set-mode-line (where)
16409b0b 6020 "Set the mode line of the article or summary buffers.
eec82323
LMI
6021If WHERE is `summary', the summary mode line format will be used."
6022 ;; Is this mode line one we keep updated?
16409b0b
GM
6023 (when (and (memq where gnus-updated-mode-lines)
6024 (symbol-value
6025 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6026 (let (mode-string)
c7a91ce1
SM
6027 ;; We evaluate this in the summary buffer since these
6028 ;; variables are buffer-local to that buffer.
6029 (with-current-buffer gnus-summary-buffer
6030 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6031 ;; below.
6032 (let* ((mformat (symbol-value
6033 (intern
6034 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6035 (gnus-tmp-group-name (gnus-mode-string-quote
6036 (gnus-group-decoded-name
6037 gnus-newsgroup-name)))
eec82323
LMI
6038 (gnus-tmp-article-number (or gnus-current-article 0))
6039 (gnus-tmp-unread gnus-newsgroup-unreads)
6040 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6041 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6042 (gnus-tmp-unread-and-unselected
6043 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6044 (zerop gnus-tmp-unselected))
6045 "")
6046 ((zerop gnus-tmp-unselected)
6047 (format "{%d more}" gnus-tmp-unread-and-unticked))
6048 (t (format "{%d(+%d) more}"
6049 gnus-tmp-unread-and-unticked
6050 gnus-tmp-unselected))))
6051 (gnus-tmp-subject
6052 (if (and gnus-current-headers
6053 (vectorp gnus-current-headers))
6054 (gnus-mode-string-quote
6055 (mail-header-subject gnus-current-headers))
6056 ""))
6057 bufname-length max-len
23f87bed 6058 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6059 (setq mode-string (eval mformat))
6060 (setq bufname-length (if (string-match "%b" mode-string)
6061 (- (length
6062 (buffer-name
6063 (if (eq where 'summary)
6064 nil
6065 (get-buffer gnus-article-buffer))))
6066 2)
6067 0))
6068 (setq max-len (max 4 (if gnus-mode-non-string-length
6069 (- (window-width)
6070 gnus-mode-non-string-length
6071 bufname-length)
6072 (length mode-string))))
6073 ;; We might have to chop a bit of the string off...
6074 (when (> (length mode-string) max-len)
6075 (setq mode-string
16409b0b 6076 (concat (truncate-string-to-width mode-string (- max-len 3))
29d31b55 6077 "...")))))
eec82323
LMI
6078 ;; Update the mode line.
6079 (setq mode-line-buffer-identification
6080 (gnus-mode-line-buffer-identification (list mode-string)))
6081 (set-buffer-modified-p t))))
6082
6083(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6084 "Go through the HEADERS list and add all Xrefs to a hash table.
6085The resulting hash table is returned, or nil if no Xrefs were found."
6086 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6087 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6088 (xref-hashtb (gnus-make-hashtable))
6089 start group entry number xrefs header)
6090 (while headers
6091 (setq header (pop headers))
6092 (when (and (setq xrefs (mail-header-xref header))
6093 (not (memq (setq number (mail-header-number header))
6094 unreads)))
6095 (setq start 0)
6096 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6097 (setq start (match-end 0))
6098 (setq group (if prefix
6099 (concat prefix (substring xrefs (match-beginning 1)
6100 (match-end 1)))
6101 (substring xrefs (match-beginning 1) (match-end 1))))
6102 (setq number
e9bd5782 6103 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6104 (match-end 2))))
6105 (if (setq entry (gnus-gethash group xref-hashtb))
6106 (setcdr entry (cons number (cdr entry)))
6107 (gnus-sethash group (cons number nil) xref-hashtb)))))
6108 (and start xref-hashtb)))
6109
6110(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6111 "Look through all the headers and mark the Xrefs as read."
6112 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6113 name info xref-hashtb idlist method nth4)
398a825b 6114 (with-current-buffer gnus-group-buffer
eec82323
LMI
6115 (when (setq xref-hashtb
6116 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6117 (mapatoms
6118 (lambda (group)
6119 (unless (string= from-newsgroup (setq name (symbol-name group)))
6120 (setq idlist (symbol-value group))
6121 ;; Dead groups are not updated.
6122 (and (prog1
01c52d31 6123 (setq info (gnus-get-info name))
eec82323
LMI
6124 (when (stringp (setq nth4 (gnus-info-method info)))
6125 (setq nth4 (gnus-server-to-method nth4))))
6126 ;; Only do the xrefs if the group has the same
6127 ;; select method as the group we have just read.
6128 (or (gnus-methods-equal-p
6129 nth4 (gnus-find-method-for-group from-newsgroup))
6130 virtual
6131 (equal nth4 (setq method (gnus-find-method-for-group
6132 from-newsgroup)))
6133 (and (equal (car nth4) (car method))
6134 (equal (nth 1 nth4) (nth 1 method))))
6135 gnus-use-cross-reference
6136 (or (not (eq gnus-use-cross-reference t))
6137 virtual
6138 ;; Only do cross-references on subscribed
6139 ;; groups, if that is what is wanted.
6140 (<= (gnus-info-level info) gnus-level-subscribed))
6141 (gnus-group-make-articles-read name idlist))))
6142 xref-hashtb)))))
6143
6748645f 6144(defun gnus-compute-read-articles (group articles)
01c52d31 6145 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6146 (info (nth 2 entry))
6147 (active (gnus-active group))
6148 ninfo)
6149 (when entry
16409b0b 6150 ;; First peel off all invalid article numbers.
6748645f
LMI
6151 (when active
6152 (let ((ids articles)
6153 id first)
6154 (while (setq id (pop ids))
6155 (when (and first (> id (cdr active)))
6156 ;; We'll end up in this situation in one particular
6157 ;; obscure situation. If you re-scan a group and get
6158 ;; a new article that is cross-posted to a different
6159 ;; group that has not been re-scanned, you might get
6160 ;; crossposted article that has a higher number than
6161 ;; Gnus believes possible. So we re-activate this
6162 ;; group as well. This might mean doing the
6163 ;; crossposting thingy will *increase* the number
6164 ;; of articles in some groups. Tsk, tsk.
6165 (setq active (or (gnus-activate-group group) active)))
6166 (when (or (> id (cdr active))
6167 (< id (car active)))
6168 (setq articles (delq id articles))))))
6169 ;; If the read list is nil, we init it.
6170 (if (and active
6171 (null (gnus-info-read info))
6172 (> (car active) 1))
6173 (setq ninfo (cons 1 (1- (car active))))
6174 (setq ninfo (gnus-info-read info)))
6175 ;; Then we add the read articles to the range.
6176 (gnus-add-to-range
6177 ninfo (setq articles (sort articles '<))))))
6178
eec82323
LMI
6179(defun gnus-group-make-articles-read (group articles)
6180 "Update the info of GROUP to say that ARTICLES are read."
6181 (let* ((num 0)
01c52d31 6182 (entry (gnus-group-entry group))
eec82323
LMI
6183 (info (nth 2 entry))
6184 (active (gnus-active group))
6185 range)
6748645f
LMI
6186 (when entry
6187 (setq range (gnus-compute-read-articles group articles))
01c52d31 6188 (with-current-buffer gnus-group-buffer
6748645f
LMI
6189 (gnus-undo-register
6190 `(progn
6191 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6192 (gnus-info-set-read ',info ',(gnus-info-read info))
6193 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6194 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6195 (gnus-group-update-group ,group t))))
6196 ;; Add the read articles to the range.
6197 (gnus-info-set-read info range)
23f87bed 6198 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6199 ;; Then we have to re-compute how many unread
6200 ;; articles there are in this group.
6201 (when active
6202 (cond
6203 ((not range)
6204 (setq num (- (1+ (cdr active)) (car active))))
6205 ((not (listp (cdr range)))
6206 (setq num (- (cdr active) (- (1+ (cdr range))
6207 (car range)))))
6208 (t
6209 (while range
6210 (if (numberp (car range))
6211 (setq num (1+ num))
6212 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6213 (setq range (cdr range)))
6214 (setq num (- (cdr active) num))))
6215 ;; Update the number of unread articles.
6216 (setcar entry num)
6217 ;; Update the group buffer.
23f87bed
MB
6218 (unless (gnus-ephemeral-group-p group)
6219 (gnus-group-update-group group t))))))
eec82323 6220
eec82323
LMI
6221(defvar gnus-newsgroup-none-id 0)
6222
6223(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6224 (let ((cur nntp-server-buffer)
6225 (dependencies
6226 (or dependencies
01c52d31
MB
6227 (with-current-buffer gnus-summary-buffer
6228 gnus-newsgroup-dependencies)))
6229 headers id end ref number
16409b0b
GM
6230 (mail-parse-charset gnus-newsgroup-charset)
6231 (mail-parse-ignored-charsets
c7a91ce1
SM
6232 (save-current-buffer (condition-case nil
6233 (set-buffer gnus-summary-buffer)
6234 (error))
6235 gnus-newsgroup-ignored-charsets)))
6236 (with-current-buffer nntp-server-buffer
eec82323
LMI
6237 ;; Translate all TAB characters into SPACE characters.
6238 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6239 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6240 (ietf-drums-unfold-fws)
6748645f 6241 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6242 (let ((case-fold-search t)
6748645f 6243 in-reply-to header p lines chars)
eec82323 6244 (goto-char (point-min))
01ccbb85 6245 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6246 ;; do not begin with 2 or 3.
6247 (while (re-search-forward "^[23][0-9]+ " nil t)
6248 (setq id nil
6249 ref nil)
6250 ;; This implementation of this function, with nine
6251 ;; search-forwards instead of the one re-search-forward and
6252 ;; a case (which basically was the old function) is actually
01ccbb85 6253 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6254 ;; can't have everything, I guess. Speed and elegance
6255 ;; doesn't always go hand in hand.
6256 (setq
6257 header
6258 (vector
6259 ;; Number.
6260 (prog1
01c52d31 6261 (setq number (read cur))
eec82323
LMI
6262 (end-of-line)
6263 (setq p (point))
6264 (narrow-to-region (point)
6265 (or (and (search-forward "\n.\n" nil t)
6266 (- (point) 2))
6267 (point))))
6268 ;; Subject.
6269 (progn
6270 (goto-char p)
23f87bed 6271 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6272 (funcall gnus-decode-encoded-word-function
6273 (nnheader-header-value))
2bd3dcae 6274 "(none)"))
eec82323
LMI
6275 ;; From.
6276 (progn
6277 (goto-char p)
23f87bed 6278 (if (search-forward "\nfrom:" nil t)
343d6628 6279 (funcall gnus-decode-encoded-address-function
16409b0b 6280 (nnheader-header-value))
2bd3dcae 6281 "(nobody)"))
eec82323
LMI
6282 ;; Date.
6283 (progn
6284 (goto-char p)
23f87bed 6285 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6286 (nnheader-header-value) ""))
6287 ;; Message-ID.
6288 (progn
6289 (goto-char p)
6748645f
LMI
6290 (setq id (if (re-search-forward
6291 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6292 ;; We do it this way to make sure the Message-ID
6293 ;; is (somewhat) syntactically valid.
6294 (buffer-substring (match-beginning 1)
6295 (match-end 1))
eec82323
LMI
6296 ;; If there was no message-id, we just fake one
6297 ;; to make subsequent routines simpler.
01c52d31 6298 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6299 ;; References.
6300 (progn
6301 (goto-char p)
23f87bed 6302 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6303 (progn
6304 (setq end (point))
6305 (prog1
6306 (nnheader-header-value)
6307 (setq ref
6308 (buffer-substring
6309 (progn
6310 (end-of-line)
6311 (search-backward ">" end t)
6312 (1+ (point)))
6313 (progn
6314 (search-backward "<" end t)
6315 (point))))))
6316 ;; Get the references from the in-reply-to header if there
6317 ;; were no references and the in-reply-to header looks
6318 ;; promising.
23f87bed 6319 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6320 (setq in-reply-to (nnheader-header-value))
6321 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6322 (let (ref2)
6323 (setq ref (substring in-reply-to (match-beginning 0)
6324 (match-end 0)))
6325 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6326 (setq ref2 (substring in-reply-to (match-beginning 0)
6327 (match-end 0)))
6328 (when (> (length ref2) (length ref))
6329 (setq ref ref2)))
6330 ref)
eec82323
LMI
6331 (setq ref nil))))
6332 ;; Chars.
6748645f
LMI
6333 (progn
6334 (goto-char p)
6335 (if (search-forward "\nchars: " nil t)
6336 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6337 chars -1)
6338 -1))
eec82323
LMI
6339 ;; Lines.
6340 (progn
6341 (goto-char p)
6342 (if (search-forward "\nlines: " nil t)
a8151ef7 6343 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6344 lines -1)
6345 -1))
eec82323
LMI
6346 ;; Xref.
6347 (progn
6348 (goto-char p)
23f87bed 6349 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6350 (nnheader-header-value)))
6351 ;; Extra.
6352 (when gnus-extra-headers
6353 (let ((extra gnus-extra-headers)
6354 out)
6355 (while extra
6356 (goto-char p)
6357 (when (search-forward
23f87bed 6358 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6359 (push (cons (car extra) (nnheader-header-value))
6360 out))
6361 (pop extra))
6362 out))))
eec82323
LMI
6363 (when (equal id ref)
6364 (setq ref nil))
6748645f
LMI
6365
6366 (when gnus-alter-header-function
6367 (funcall gnus-alter-header-function header)
6368 (setq id (mail-header-id header)
6369 ref (gnus-parent-id (mail-header-references header))))
6370
6371 (when (setq header
6372 (gnus-dependencies-add-header
6373 header dependencies force-new))
eec82323
LMI
6374 (push header headers))
6375 (goto-char (point-max))
6376 (widen))
6377 (nreverse headers)))))
6378
eec82323
LMI
6379;; Goes through the xover lines and returns a list of vectors
6380(defun gnus-get-newsgroup-headers-xover (sequence &optional
6381 force-new dependencies
6382 group also-fetch-heads)
16409b0b
GM
6383 "Parse the news overview data in the server buffer.
6384Return a list of headers that match SEQUENCE (see
6385`nntp-retrieve-headers')."
eec82323
LMI
6386 ;; Get the Xref when the users reads the articles since most/some
6387 ;; NNTP servers do not include Xrefs when using XOVER.
6388 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6389 (let ((mail-parse-charset gnus-newsgroup-charset)
6390 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6391 (cur nntp-server-buffer)
eec82323 6392 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6393 (allp (cond
6394 ((eq gnus-read-all-available-headers t)
6395 t)
14e6dc54
MB
6396 ((and (stringp gnus-read-all-available-headers)
6397 group)
23f87bed
MB
6398 (string-match gnus-read-all-available-headers group))
6399 (t
6400 nil)))
eec82323 6401 number headers header)
c7a91ce1 6402 (with-current-buffer nntp-server-buffer
16409b0b 6403 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6404 ;; Allow the user to mangle the headers before parsing them.
6748645f 6405 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6406 (goto-char (point-min))
23f87bed
MB
6407 (gnus-parse-without-error
6408 (while (and (or sequence allp)
6409 (not (eobp)))
6410 (setq number (read cur))
6411 (when (not allp)
6412 (while (and sequence
6413 (< (car sequence) number))
6414 (setq sequence (cdr sequence))))
6415 (when (and (or allp
6416 (and sequence
6417 (eq number (car sequence))))
6418 (progn
6419 (setq sequence (cdr sequence))
6420 (setq header (inline
6421 (gnus-nov-parse-line
6422 number dependencies force-new)))))
6423 (push header headers))
6424 (forward-line 1)))
eec82323
LMI
6425 ;; A common bug in inn is that if you have posted an article and
6426 ;; then retrieves the active file, it will answer correctly --
6427 ;; the new article is included. However, a NOV entry for the
6428 ;; article may not have been generated yet, so this may fail.
6429 ;; We work around this problem by retrieving the last few
6430 ;; headers using HEAD.
6431 (if (or (not also-fetch-heads)
6432 (not sequence))
6433 ;; We (probably) got all the headers.
6434 (nreverse headers)
6435 (let ((gnus-nov-is-evil t))
6436 (nconc
6437 (nreverse headers)
23f87bed 6438 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6439 (gnus-get-newsgroup-headers))))))))
6440
6441(defun gnus-article-get-xrefs ()
6442 "Fill in the Xref value in `gnus-current-headers', if necessary.
6443This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6444 (let ((headers (with-current-buffer gnus-summary-buffer
6445 gnus-current-headers)))
eec82323
LMI
6446 (or (not gnus-use-cross-reference)
6447 (not headers)
6448 (and (mail-header-xref headers)
6449 (not (string= (mail-header-xref headers) "")))
6450 (let ((case-fold-search t)
6451 xref)
6452 (save-restriction
6453 (nnheader-narrow-to-headers)
6454 (goto-char (point-min))
16409b0b
GM
6455 (when (or (and (not (eobp))
6456 (eq (downcase (char-after)) ?x)
eec82323
LMI
6457 (looking-at "Xref:"))
6458 (search-forward "\nXref:" nil t))
6459 (goto-char (1+ (match-end 0)))
01c52d31 6460 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6461 (mail-header-set-xref headers xref)))))))
6462
6463(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6464 "Find article ID and insert the summary line for that article.
6465OLD-HEADER can either be a header or a line number to insert
6466the subject line on."
6467 (let* ((line (and (numberp old-header) old-header))
6468 (old-header (and (vectorp old-header) old-header))
6469 (header (cond ((and old-header use-old-header)
16409b0b
GM
6470 old-header)
6471 ((and (numberp id)
6472 (gnus-number-to-header id))
6473 (gnus-number-to-header id))
6474 (t
6475 (gnus-read-header id))))
6476 (number (and (numberp id) id))
6477 d)
eec82323
LMI
6478 (when header
6479 ;; Rebuild the thread that this article is part of and go to the
6480 ;; article we have fetched.
6481 (when (and (not gnus-show-threads)
6482 old-header)
6748645f
LMI
6483 (when (and number
6484 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6485 (goto-char (gnus-data-pos d))
6486 (gnus-data-remove
6487 number
01c52d31 6488 (- (point-at-bol)
eec82323 6489 (prog1
01c52d31 6490 (1+ (point-at-eol))
eec82323 6491 (gnus-delete-line))))))
23f87bed
MB
6492 ;; Remove list identifiers from subject.
6493 (when gnus-list-identifiers
6494 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6495 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6496 (when old-header
6497 (mail-header-set-number header (mail-header-number old-header)))
6498 (setq gnus-newsgroup-sparse
6499 (delq (setq number (mail-header-number header))
6500 gnus-newsgroup-sparse))
6501 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6502 (push number gnus-newsgroup-limit)
6503 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6504 (gnus-summary-goto-subject number nil t))
6505 (when (and (numberp number)
6506 (> number 0))
6507 ;; We have to update the boundaries even if we can't fetch the
6508 ;; article if ID is a number -- so that the next `P' or `N'
6509 ;; command will fetch the previous (or next) article even
6510 ;; if the one we tried to fetch this time has been canceled.
6511 (when (> number gnus-newsgroup-end)
6512 (setq gnus-newsgroup-end number))
6513 (when (< number gnus-newsgroup-begin)
6514 (setq gnus-newsgroup-begin number))
6515 (setq gnus-newsgroup-unselected
6516 (delq number gnus-newsgroup-unselected)))
6517 ;; Report back a success?
6518 (and header (mail-header-number header))))
6519
6520;;; Process/prefix in the summary buffer
6521
6522(defun gnus-summary-work-articles (n)
6748645f
LMI
6523 "Return a list of articles to be worked upon.
6524The prefix argument, the list of process marked articles, and the
6525current article will be taken into consideration."
c7a91ce1 6526 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6527 (cond
6528 (n
6529 ;; A numerical prefix has been given.
6530 (setq n (prefix-numeric-value n))
6531 (let ((backward (< n 0))
6532 (n (abs (prefix-numeric-value n)))
6533 articles article)
6534 (save-excursion
6535 (while
6536 (and (> n 0)
6537 (push (setq article (gnus-summary-article-number))
6538 articles)
6539 (if backward
6540 (gnus-summary-find-prev nil article)
6541 (gnus-summary-find-next nil article)))
6542 (decf n)))
6543 (nreverse articles)))
6544 ((and (gnus-region-active-p) (mark))
6545 (message "region active")
6546 ;; Work on the region between point and mark.
6547 (let ((max (max (point) (mark)))
6548 articles article)
6549 (save-excursion
7dafe00b 6550 (goto-char (min (point) (mark)))
6748645f
LMI
6551 (while
6552 (and
6553 (push (setq article (gnus-summary-article-number)) articles)
6554 (gnus-summary-find-next nil article)
6555 (< (point) max)))
6556 (nreverse articles))))
6557 (gnus-newsgroup-processable
6558 ;; There are process-marked articles present.
6559 ;; Save current state.
6560 (gnus-summary-save-process-mark)
6561 ;; Return the list.
6562 (reverse gnus-newsgroup-processable))
6563 (t
6564 ;; Just return the current article.
6565 (list (gnus-summary-article-number))))))
6566
6567(defmacro gnus-summary-iterate (arg &rest forms)
6568 "Iterate over the process/prefixed articles and do FORMS.
6569ARG is the interactive prefix given to the command. FORMS will be
6570executed with point over the summary line of the articles."
6571 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6572 `(let ((,articles (gnus-summary-work-articles ,arg)))
6573 (while ,articles
6574 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6575 ,@forms
6576 (pop ,articles)))))
6748645f
LMI
6577
6578(put 'gnus-summary-iterate 'lisp-indent-function 1)
6579(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6580
6581(defun gnus-summary-save-process-mark ()
6582 "Push the current set of process marked articles on the stack."
6583 (interactive)
6584 (push (copy-sequence gnus-newsgroup-processable)
6585 gnus-newsgroup-process-stack))
6586
6587(defun gnus-summary-kill-process-mark ()
6588 "Push the current set of process marked articles on the stack and unmark."
6589 (interactive)
6590 (gnus-summary-save-process-mark)
6591 (gnus-summary-unmark-all-processable))
6592
6593(defun gnus-summary-yank-process-mark ()
6594 "Pop the last process mark state off the stack and restore it."
6595 (interactive)
6596 (unless gnus-newsgroup-process-stack
6597 (error "Empty mark stack"))
6598 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6599
6600(defun gnus-summary-process-mark-set (set)
6601 "Make SET into the current process marked articles."
6602 (gnus-summary-unmark-all-processable)
01c52d31 6603 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6604
6605;;; Searching and stuff
6606
6607(defun gnus-summary-search-group (&optional backward use-level)
6608 "Search for next unread newsgroup.
6609If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6610 (with-current-buffer gnus-group-buffer
eec82323
LMI
6611 (when (gnus-group-search-forward
6612 backward nil (if use-level (gnus-group-group-level) nil))
6613 (gnus-group-group-name))))
6614
6615(defun gnus-summary-best-group (&optional exclude-group)
6616 "Find the name of the best unread group.
6617If EXCLUDE-GROUP, do not go to this group."
01c52d31 6618 (with-current-buffer gnus-group-buffer
eec82323
LMI
6619 (save-excursion
6620 (gnus-group-best-unread-group exclude-group))))
6621
23f87bed
MB
6622(defun gnus-summary-find-next (&optional unread article backward)
6623 (if backward
6624 (gnus-summary-find-prev unread article)
eec82323
LMI
6625 (let* ((dummy (gnus-summary-article-intangible-p))
6626 (article (or article (gnus-summary-article-number)))
23f87bed 6627 (data (gnus-data-find-list article))
eec82323
LMI
6628 result)
6629 (when (and (not dummy)
6630 (or (not gnus-summary-check-current)
6631 (not unread)
23f87bed
MB
6632 (not (gnus-data-unread-p (car data)))))
6633 (setq data (cdr data)))
eec82323
LMI
6634 (when (setq result
6635 (if unread
6636 (progn
23f87bed
MB
6637 (while data
6638 (unless (memq (gnus-data-number (car data))
6639 (cond
6640 ((eq gnus-auto-goto-ignores
6641 'always-undownloaded)
6642 gnus-newsgroup-undownloaded)
6643 (gnus-plugged
6644 nil)
6645 ((eq gnus-auto-goto-ignores
6646 'unfetched)
6647 gnus-newsgroup-unfetched)
6648 ((eq gnus-auto-goto-ignores
6649 'undownloaded)
6650 gnus-newsgroup-undownloaded)))
6651 (when (gnus-data-unread-p (car data))
6652 (setq result (car data)
6653 data nil)))
6654 (setq data (cdr data)))
eec82323 6655 result)
23f87bed 6656 (car data)))
eec82323
LMI
6657 (goto-char (gnus-data-pos result))
6658 (gnus-data-number result)))))
6659
6660(defun gnus-summary-find-prev (&optional unread article)
6661 (let* ((eobp (eobp))
6662 (article (or article (gnus-summary-article-number)))
23f87bed 6663 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6664 result)
6665 (when (and (not eobp)
6666 (or (not gnus-summary-check-current)
6667 (not unread)
23f87bed
MB
6668 (not (gnus-data-unread-p (car data)))))
6669 (setq data (cdr data)))
eec82323
LMI
6670 (when (setq result
6671 (if unread
6672 (progn
23f87bed
MB
6673 (while data
6674 (unless (memq (gnus-data-number (car data))
6675 (cond
6676 ((eq gnus-auto-goto-ignores
6677 'always-undownloaded)
6678 gnus-newsgroup-undownloaded)
6679 (gnus-plugged
6680 nil)
6681 ((eq gnus-auto-goto-ignores
6682 'unfetched)
6683 gnus-newsgroup-unfetched)
6684 ((eq gnus-auto-goto-ignores
6685 'undownloaded)
6686 gnus-newsgroup-undownloaded)))
6687 (when (gnus-data-unread-p (car data))
6688 (setq result (car data)
6689 data nil)))
6690 (setq data (cdr data)))
eec82323 6691 result)
23f87bed 6692 (car data)))
eec82323
LMI
6693 (goto-char (gnus-data-pos result))
6694 (gnus-data-number result))))
6695
6696(defun gnus-summary-find-subject (subject &optional unread backward article)
6697 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6698 (article (or article (gnus-summary-article-number)))
6699 (articles (gnus-data-list backward))
6700 (arts (gnus-data-find-list article articles))
6701 result)
6702 (when (or (not gnus-summary-check-current)
6703 (not unread)
6704 (not (gnus-data-unread-p (car arts))))
6705 (setq arts (cdr arts)))
6706 (while arts
6707 (and (or (not unread)
6708 (gnus-data-unread-p (car arts)))
6709 (vectorp (gnus-data-header (car arts)))
6710 (gnus-subject-equal
6711 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6712 (setq result (car arts)
6713 arts nil))
6714 (setq arts (cdr arts)))
6715 (and result
6716 (goto-char (gnus-data-pos result))
6717 (gnus-data-number result))))
6718
6719(defun gnus-summary-search-forward (&optional unread subject backward)
6720 "Search forward for an article.
6721If UNREAD, look for unread articles. If SUBJECT, look for
6722articles with that subject. If BACKWARD, search backward instead."
6723 (cond (subject (gnus-summary-find-subject subject unread backward))
6724 (backward (gnus-summary-find-prev unread))
6725 (t (gnus-summary-find-next unread))))
6726
6727(defun gnus-recenter (&optional n)
6728 "Center point in window and redisplay frame.
6729Also do horizontal recentering."
6730 (interactive "P")
6731 (when (and gnus-auto-center-summary
6732 (not (eq gnus-auto-center-summary 'vertical)))
6733 (gnus-horizontal-recenter))
5aa75bd8
JL
6734 (if (fboundp 'recenter-top-bottom)
6735 (recenter-top-bottom n)
6736 (recenter n)))
6737
6738(put 'gnus-recenter 'isearch-scroll t)
eec82323 6739
7b47345b
AS
6740(defun gnus-forward-line-ignore-invisible (n)
6741 "Move N lines forward (backward if N is negative).
6742Like forward-line, but skip over (and don't count) invisible lines."
6743 (let (done)
6744 (while (and (> n 0) (not done))
6745 ;; If the following character is currently invisible,
6746 ;; skip all characters with that same `invisible' property value.
770d9a1f
KY
6747 (while (gnus-invisible-p (point))
6748 (goto-char (gnus-next-char-property-change (point))))
7b47345b
AS
6749 (forward-line 1)
6750 (if (eobp)
6751 (setq done t)
6752 (setq n (1- n))))
6753 (while (and (< n 0) (not done))
6754 (forward-line -1)
6755 (if (bobp) (setq done t)
6756 (setq n (1+ n))
770d9a1f
KY
6757 (while (and (not (bobp)) (gnus-invisible-p (1- (point))))
6758 (goto-char (gnus-previous-char-property-change (point))))))))
6759
eec82323
LMI
6760(defun gnus-summary-recenter ()
6761 "Center point in the summary window.
6762If `gnus-auto-center-summary' is nil, or the article buffer isn't
6763displayed, no centering will be performed."
6764 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6765 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6766 (interactive)
23f87bed
MB
6767 ;; The user has to want it.
6768 (when gnus-auto-center-summary
6769 (let* ((top (cond ((< (window-height) 4) 0)
6770 ((< (window-height) 7) 1)
6771 (t (if (numberp gnus-auto-center-summary)
6772 gnus-auto-center-summary
01c52d31 6773 (/ (1- (window-height)) 2)))))
23f87bed 6774 (height (1- (window-height)))
7b47345b
AS
6775 (bottom (save-excursion
6776 (goto-char (point-max))
6777 (gnus-forward-line-ignore-invisible (- height))
6778 (point)))
23f87bed 6779 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6780 (when (get-buffer-window gnus-article-buffer)
6781 ;; Only do recentering when the article buffer is displayed,
6782 ;; Set the window start to either `bottom', which is the biggest
6783 ;; possible valid number, or the second line from the top,
6784 ;; whichever is the least.
7b47345b
AS
6785 (let ((top-pos (save-excursion
6786 (gnus-forward-line-ignore-invisible (- top))
6787 (point))))
db7ebd73
MB
6788 (if (> bottom top-pos)
6789 ;; Keep the second line from the top visible
01c52d31 6790 (set-window-start window top-pos)
db7ebd73
MB
6791 ;; Try to keep the bottom line visible; if it's partially
6792 ;; obscured, either scroll one more line to make it fully
6793 ;; visible, or revert to using TOP-POS.
6794 (save-excursion
6795 (goto-char (point-max))
7b47345b 6796 (gnus-forward-line-ignore-invisible -1)
db7ebd73
MB
6797 (let ((last-line-start (point)))
6798 (goto-char bottom)
6799 (set-window-start window (point) t)
6800 (when (not (pos-visible-in-window-p last-line-start window))
7b47345b 6801 (gnus-forward-line-ignore-invisible 1)
db7ebd73 6802 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6803 ;; Do horizontal recentering while we're at it.
6804 (when (and (get-buffer-window (current-buffer) t)
6805 (not (eq gnus-auto-center-summary 'vertical)))
6806 (let ((selected (selected-window)))
6807 (select-window (get-buffer-window (current-buffer) t))
6808 (gnus-summary-position-point)
6809 (gnus-horizontal-recenter)
6810 (select-window selected))))))
6811
6812(defun gnus-summary-jump-to-group (newsgroup)
6813 "Move point to NEWSGROUP in group mode buffer."
6814 ;; Keep update point of group mode buffer if visible.
6815 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6816 (save-window-excursion
6817 ;; Take care of tree window mode.
6818 (when (get-buffer-window gnus-group-buffer)
6819 (pop-to-buffer gnus-group-buffer))
6820 (gnus-group-jump-to-group newsgroup))
6821 (save-excursion
6822 ;; Take care of tree window mode.
c7a91ce1 6823 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6824 (pop-to-buffer gnus-group-buffer)
6825 (set-buffer gnus-group-buffer))
6826 (gnus-group-jump-to-group newsgroup))))
6827
6828;; This function returns a list of article numbers based on the
6829;; difference between the ranges of read articles in this group and
6830;; the range of active articles.
6831(defun gnus-list-of-unread-articles (group)
6832 (let* ((read (gnus-info-read (gnus-get-info group)))
6833 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6834 (last (or (cdr active)
6835 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6836 (bottom (if gnus-newsgroup-maximum-articles
6837 (max (car active)
6838 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6839 (car active)))
eec82323
LMI
6840 first nlast unread)
6841 ;; If none are read, then all are unread.
6842 (if (not read)
11abff8e 6843 (setq first bottom)
eec82323
LMI
6844 ;; If the range of read articles is a single range, then the
6845 ;; first unread article is the article after the last read
6846 ;; article. Sounds logical, doesn't it?
16409b0b 6847 (if (and (not (listp (cdr read)))
11abff8e 6848 (or (< (car read) bottom)
16409b0b
GM
6849 (progn (setq read (list read))
6850 nil)))
11abff8e 6851 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6852 ;; `read' is a list of ranges.
6853 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6854 (caar read)))
6855 1)
11abff8e 6856 (setq first bottom))
eec82323
LMI
6857 (while read
6858 (when first
6859 (while (< first nlast)
54506618
MB
6860 (setq unread (cons first unread)
6861 first (1+ first))))
eec82323
LMI
6862 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6863 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6864 (setq read (cdr read)))))
6865 ;; And add the last unread articles.
6866 (while (<= first last)
54506618
MB
6867 (setq unread (cons first unread)
6868 first (1+ first)))
eec82323 6869 ;; Return the list of unread articles.
6748645f 6870 (delq 0 (nreverse unread))))
eec82323
LMI
6871
6872(defun gnus-list-of-read-articles (group)
6873 "Return a list of unread, unticked and non-dormant articles."
6874 (let* ((info (gnus-get-info group))
6875 (marked (gnus-info-marks info))
6876 (active (gnus-active group)))
6877 (and info active
23f87bed
MB
6878 (gnus-list-range-difference
6879 (gnus-list-range-difference
6880 (gnus-sorted-complement
11abff8e 6881 (gnus-uncompress-range
4b70e299 6882 (if gnus-newsgroup-maximum-articles
11abff8e 6883 (cons (max (car active)
4b70e299
MB
6884 (- (cdr active)
6885 gnus-newsgroup-maximum-articles
6886 -1))
11abff8e
MB
6887 (cdr active))
6888 active))
23f87bed
MB
6889 (gnus-list-of-unread-articles group))
6890 (cdr (assq 'dormant marked)))
6891 (cdr (assq 'tick marked))))))
eec82323 6892
54506618
MB
6893;; This function returns a sequence of article numbers based on the
6894;; difference between the ranges of read articles in this group and
6895;; the range of active articles.
6896(defun gnus-sequence-of-unread-articles (group)
6897 (let* ((read (gnus-info-read (gnus-get-info group)))
6898 (active (or (gnus-active group) (gnus-activate-group group)))
6899 (last (cdr active))
4b70e299
MB
6900 (bottom (if gnus-newsgroup-maximum-articles
6901 (max (car active)
6902 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6903 (car active)))
54506618
MB
6904 first nlast unread)
6905 ;; If none are read, then all are unread.
6906 (if (not read)
11abff8e 6907 (setq first bottom)
54506618
MB
6908 ;; If the range of read articles is a single range, then the
6909 ;; first unread article is the article after the last read
6910 ;; article. Sounds logical, doesn't it?
6911 (if (and (not (listp (cdr read)))
11abff8e 6912 (or (< (car read) bottom)
54506618
MB
6913 (progn (setq read (list read))
6914 nil)))
11abff8e 6915 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6916 ;; `read' is a list of ranges.
6917 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6918 (caar read)))
6919 1)
11abff8e 6920 (setq first bottom))
54506618
MB
6921 (while read
6922 (when first
6923 (push (cons first nlast) unread))
6924 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6925 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6926 (setq read (cdr read)))))
6927 ;; And add the last unread articles.
ba0226dd
MB
6928 (cond ((not (and first last))
6929 nil)
6930 ((< first last)
6931 (push (cons first last) unread))
6932 ((= first last)
6933 (push first unread)))
54506618
MB
6934 ;; Return the sequence of unread articles.
6935 (delq 0 (nreverse unread))))
6936
eec82323
LMI
6937;; Various summary commands
6938
6748645f
LMI
6939(defun gnus-summary-select-article-buffer ()
6940 "Reconfigure windows to show article buffer."
6941 (interactive)
6942 (if (not (gnus-buffer-live-p gnus-article-buffer))
6943 (error "There is no article buffer for this summary buffer")
6944 (gnus-configure-windows 'article)
6945 (select-window (get-buffer-window gnus-article-buffer))))
6946
eec82323
LMI
6947(defun gnus-summary-universal-argument (arg)
6948 "Perform any operation on all articles that are process/prefixed."
6949 (interactive "P")
eec82323
LMI
6950 (let ((articles (gnus-summary-work-articles arg))
6951 func article)
6952 (if (eq
6953 (setq
6954 func
6955 (key-binding
6956 (read-key-sequence
6957 (substitute-command-keys
16409b0b 6958 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6959 'undefined)
6960 (gnus-error 1 "Undefined key")
6961 (save-excursion
6962 (while articles
6963 (gnus-summary-goto-subject (setq article (pop articles)))
6964 (let (gnus-newsgroup-processable)
6965 (command-execute func))
6966 (gnus-summary-remove-process-mark article)))))
6967 (gnus-summary-position-point))
6968
6969(defun gnus-summary-toggle-truncation (&optional arg)
6970 "Toggle truncation of summary lines.
23f87bed 6971With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6972 (interactive "P")
6973 (setq truncate-lines
6974 (if (null arg) (not truncate-lines)
6975 (> (prefix-numeric-value arg) 0)))
6976 (redraw-display))
6977
23f87bed
MB
6978(defun gnus-summary-find-for-reselect ()
6979 "Return the number of an article to stay on across a reselect.
6980The current article is considered, then following articles, then previous
6981articles. An article is sought which is not cancelled and isn't a temporary
6982insertion from another group. If there's no such then return a dummy 0."
6983 (let (found)
6984 (dolist (rev '(nil t))
6985 (unless found ; don't demand the reverse list if we don't need it
6986 (let ((data (gnus-data-find-list
6987 (gnus-summary-article-number) (gnus-data-list rev))))
6988 (while (and data (not found))
6989 (if (and (< 0 (gnus-data-number (car data)))
6990 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6991 (setq found (gnus-data-number (car data))))
6992 (setq data (cdr data))))))
6993 (or found 0)))
6994
eec82323
LMI
6995(defun gnus-summary-reselect-current-group (&optional all rescan)
6996 "Exit and then reselect the current newsgroup.
6997The prefix argument ALL means to select all articles."
6998 (interactive "P")
eec82323
LMI
6999 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
7000 (error "Ephemeral groups can't be reselected"))
23f87bed 7001 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
7002 (group gnus-newsgroup-name))
7003 (setq gnus-newsgroup-begin nil)
23f87bed 7004 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
7005 ;; We have to adjust the point of group mode buffer because
7006 ;; point was moved to the next unread newsgroup by exiting.
7007 (gnus-summary-jump-to-group group)
7008 (when rescan
7009 (save-excursion
7010 (gnus-group-get-new-news-this-group 1)))
7011 (gnus-group-read-group all t)
7012 (gnus-summary-goto-subject current-subject nil t)))
7013
7014(defun gnus-summary-rescan-group (&optional all)
7015 "Exit the newsgroup, ask for new articles, and select the newsgroup."
7016 (interactive "P")
7017 (gnus-summary-reselect-current-group all t))
7018
7019(defun gnus-summary-update-info (&optional non-destructive)
7020 (save-excursion
7021 (let ((group gnus-newsgroup-name))
6748645f
LMI
7022 (when group
7023 (when gnus-newsgroup-kill-headers
7024 (setq gnus-newsgroup-killed
7025 (gnus-compress-sequence
23f87bed
MB
7026 (gnus-sorted-union
7027 (gnus-list-range-intersection
7028 gnus-newsgroup-unselected gnus-newsgroup-killed)
7029 gnus-newsgroup-unreads)
6748645f
LMI
7030 t)))
7031 (unless (listp (cdr gnus-newsgroup-killed))
7032 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
7033 (let ((headers gnus-newsgroup-headers))
7034 ;; Set the new ranges of read articles.
01c52d31 7035 (with-current-buffer gnus-group-buffer
6748645f
LMI
7036 (gnus-undo-force-boundary))
7037 (gnus-update-read-articles
23f87bed
MB
7038 group (gnus-sorted-union
7039 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
7040 ;; Set the current article marks.
7041 (let ((gnus-newsgroup-scored
7042 (if (and (not gnus-save-score)
7043 (not non-destructive))
7044 nil
7045 gnus-newsgroup-scored)))
7046 (save-excursion
7047 (gnus-update-marks)))
7048 ;; Do the cross-ref thing.
7049 (when gnus-use-cross-reference
7050 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7051 ;; Do not switch windows but change the buffer to work.
a8151ef7 7052 (set-buffer gnus-group-buffer)
6748645f
LMI
7053 (unless (gnus-ephemeral-group-p group)
7054 (gnus-group-update-group group)))))))
eec82323
LMI
7055
7056(defun gnus-summary-save-newsrc (&optional force)
7057 "Save the current number of read/marked articles in the dribble buffer.
7058The dribble buffer will then be saved.
7059If FORCE (the prefix), also save the .newsrc file(s)."
7060 (interactive "P")
7061 (gnus-summary-update-info t)
7062 (if force
7063 (gnus-save-newsrc-file)
7064 (gnus-dribble-save)))
7065
704f1663
GM
7066(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7067
23f87bed 7068(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7069 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7070`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7071 (interactive)
7072 (gnus-set-global-variables)
16409b0b 7073 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7074 (with-current-buffer gnus-article-buffer
16409b0b
GM
7075 (mm-destroy-parts gnus-article-mime-handles)
7076 ;; Set it to nil for safety reason.
7077 (setq gnus-article-mime-handle-alist nil)
7078 (setq gnus-article-mime-handles nil)))
eec82323 7079 (gnus-kill-save-kill-buffer)
6748645f 7080 (gnus-async-halt-prefetch)
eec82323
LMI
7081 (let* ((group gnus-newsgroup-name)
7082 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7083 (gnus-group-is-exiting-p t)
eec82323 7084 (mode major-mode)
23f87bed 7085 (group-point nil)
eec82323 7086 (buf (current-buffer)))
16409b0b
GM
7087 (unless quit-config
7088 ;; Do adaptive scoring, and possibly save score files.
7089 (when gnus-newsgroup-adaptive
7090 (gnus-score-adaptive))
7091 (when gnus-use-scoring
7092 (gnus-score-save)))
6748645f 7093 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7094 ;; If we have several article buffers, we kill them at exit.
7095 (unless gnus-single-article-buffer
01c52d31
MB
7096 (when (gnus-buffer-live-p gnus-article-buffer)
7097 (with-current-buffer gnus-article-buffer
7098 ;; Don't kill sticky article buffers
7099 (unless (eq major-mode 'gnus-sticky-article-mode)
7100 (gnus-kill-buffer gnus-article-buffer)
7101 (setq gnus-article-current nil))))
7102 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7103 (when gnus-use-cache
7104 (gnus-cache-possibly-remove-articles)
7105 (gnus-cache-save-buffers))
7106 (gnus-async-prefetch-remove-group group)
7107 (when gnus-suppress-duplicates
7108 (gnus-dup-enter-articles))
7109 (when gnus-use-trees
7110 (gnus-tree-close group))
16409b0b
GM
7111 (when gnus-use-cache
7112 (gnus-cache-write-active))
6748645f
LMI
7113 ;; Remove entries for this group.
7114 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7115 ;; Make all changes in this group permanent.
7116 (unless quit-config
6748645f 7117 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7118 (gnus-summary-update-info))
eec82323
LMI
7119 (gnus-close-group group)
7120 ;; Make sure where we were, and go to next newsgroup.
7121 (set-buffer gnus-group-buffer)
7122 (unless quit-config
7123 (gnus-group-jump-to-group group))
6748645f
LMI
7124 (gnus-run-hooks 'gnus-summary-exit-hook)
7125 (unless (or quit-config
01c52d31 7126 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7127 ;; If this group has disappeared from the summary
7128 ;; buffer, don't skip forwards.
7129 (not (string= group (gnus-group-group-name))))
eec82323 7130 (gnus-group-next-unread-group 1))
a8151ef7 7131 (setq group-point (point))
eec82323
LMI
7132 (if temporary
7133 nil ;Nothing to do.
eec82323
LMI
7134 (set-buffer buf)
7135 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7136 (progn
7137 (gnus-deaden-summary)
7138 (setq mode nil))
eec82323
LMI
7139 ;; We set all buffer-local variables to nil. It is unclear why
7140 ;; this is needed, but if we don't, buffer-local variables are
7141 ;; not garbage-collected, it seems. This would the lead to en
7142 ;; ever-growing Emacs.
7143 (gnus-summary-clear-local-variables)
23f87bed
MB
7144 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7145 (gnus-summary-clear-local-variables))
eec82323
LMI
7146 (when (get-buffer gnus-article-buffer)
7147 (bury-buffer gnus-article-buffer))
eec82323
LMI
7148 ;; Return to group mode buffer.
7149 (when (eq mode 'gnus-summary-mode)
7150 (gnus-kill-buffer buf)))
7151 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7152 (set-buffer gnus-group-buffer)
7153 (if quit-config
7154 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7155 (goto-char group-point)
7156 ;; If gnus-group-buffer is already displayed, make sure we also move
7157 ;; the cursor in the window that displays it.
7158 (let ((win (get-buffer-window (current-buffer) 0)))
7159 (if win (set-window-point win (point))))
d61c212b 7160 (unless leave-hidden
4e90f2b9 7161 (gnus-configure-windows 'group 'force)))
6748645f 7162 ;; Clear the current group name.
eec82323
LMI
7163 (unless quit-config
7164 (setq gnus-newsgroup-name nil)))))
7165
7166(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7167(defun gnus-summary-exit-no-update (&optional no-questions)
7168 "Quit reading current newsgroup without updating read article info."
7169 (interactive)
eec82323 7170 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7171 (gnus-group-is-exiting-p t)
7172 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7173 (quit-config (gnus-group-quit-config group)))
7174 (when (or no-questions
7175 gnus-expert-user
7176 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7177 (gnus-async-halt-prefetch)
23f87bed 7178 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7179 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7180 (with-current-buffer gnus-article-buffer
16409b0b
GM
7181 (mm-destroy-parts gnus-article-mime-handles)
7182 ;; Set it to nil for safety reason.
7183 (setq gnus-article-mime-handle-alist nil)
7184 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7185 ;; If we have several article buffers, we kill them at exit.
7186 (unless gnus-single-article-buffer
7187 (gnus-kill-buffer gnus-article-buffer)
7188 (gnus-kill-buffer gnus-original-article-buffer)
7189 (setq gnus-article-current nil))
7190 (if (not gnus-kill-summary-on-exit)
7191 (gnus-deaden-summary)
7192 (gnus-close-group group)
7193 (gnus-summary-clear-local-variables)
23f87bed
MB
7194 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7195 (gnus-summary-clear-local-variables))
7196 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7197 (unless gnus-single-article-buffer
7198 (setq gnus-article-current nil))
7199 (when gnus-use-trees
7200 (gnus-tree-close group))
7201 (gnus-async-prefetch-remove-group group)
7202 (when (get-buffer gnus-article-buffer)
7203 (bury-buffer gnus-article-buffer))
7204 ;; Return to the group buffer.
7205 (gnus-configure-windows 'group 'force)
7206 ;; Clear the current group name.
7207 (setq gnus-newsgroup-name nil)
23f87bed
MB
7208 (unless (gnus-ephemeral-group-p group)
7209 (gnus-group-update-group group))
eec82323
LMI
7210 (when (equal (gnus-group-group-name) group)
7211 (gnus-group-next-unread-group 1))
7212 (when quit-config
23f87bed 7213 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7214
7215(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7216 "Handle movement when leaving an ephemeral group.
7217The state which existed when entering the ephemeral is reset."
eec82323
LMI
7218 (if (not (buffer-name (car quit-config)))
7219 (gnus-configure-windows 'group 'force)
7220 (set-buffer (car quit-config))
7221 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7222 (gnus-set-global-variables))
7223 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7224 (save-current-buffer
23f87bed
MB
7225 ;; The `gnus-summary-buffer' variable may point
7226 ;; to the old summary buffer when using a single
7227 ;; article buffer.
7228 (unless (gnus-buffer-live-p gnus-summary-buffer)
7229 (set-buffer gnus-group-buffer))
7230 (set-buffer gnus-summary-buffer)
7231 (gnus-set-global-variables))))
eec82323 7232 (if (or (eq (cdr quit-config) 'article)
23f87bed 7233 (eq (cdr quit-config) 'pick))
01c52d31
MB
7234 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7235 (gnus-configure-windows 'pick 'force)
7236 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7237 (gnus-configure-windows (cdr quit-config) 'force))
7238 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7239 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7240 next-unread-noselect))
7241 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7242 'next-noselect)
7243 (gnus-summary-next-subject 1 nil t))
7244 ((eq gnus-auto-select-on-ephemeral-exit
7245 'next-unread-noselect)
7246 (gnus-summary-next-subject 1 t t))))
7247 ;; Hide the article buffer which displays the article different
7248 ;; from the one that the cursor points to in the summary buffer.
7249 (gnus-configure-windows 'summary 'force))
7250 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7251 (gnus-summary-next-subject 1))
7252 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7253 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7254 (gnus-summary-recenter)
7255 (gnus-summary-position-point))))
7256
7257;;; Dead summaries.
7258
bbf52f1e
SM
7259(defvar gnus-dead-summary-mode-map
7260 (let ((map (make-keymap)))
7261 (suppress-keymap map)
7262 (substitute-key-definition 'undefined 'gnus-summary-wake-up-the-dead map)
7263 (dolist (key '("\C-d" "\r" "\177" [delete]))
7264 (define-key map key 'gnus-summary-wake-up-the-dead))
7265 (dolist (key '("q" "Q"))
7266 (define-key map key 'bury-buffer))
7267 map))
7268
7269(define-minor-mode gnus-dead-summary-mode
eec82323 7270 "Minor mode for Gnus summary buffers."
bbf52f1e
SM
7271 :lighter " Dead" :keymap gnus-dead-summary-mode-map
7272 (unless (derived-mode-p 'gnus-summary-mode)
7273 (setq gnus-dead-summary-mode nil)))
eec82323
LMI
7274
7275(defun gnus-deaden-summary ()
7276 "Make the current summary buffer into a dead summary buffer."
7277 ;; Kill any previous dead summary buffer.
7278 (when (and gnus-dead-summary
7279 (buffer-name gnus-dead-summary))
01c52d31 7280 (with-current-buffer gnus-dead-summary
eec82323
LMI
7281 (when gnus-dead-summary-mode
7282 (kill-buffer (current-buffer)))))
7283 ;; Make this the current dead summary.
7284 (setq gnus-dead-summary (current-buffer))
7285 (gnus-dead-summary-mode 1)
7286 (let ((name (buffer-name)))
7287 (when (string-match "Summary" name)
7288 (rename-buffer
7289 (concat (substring name 0 (match-beginning 0)) "Dead "
7290 (substring name (match-beginning 0)))
16409b0b
GM
7291 t)
7292 (bury-buffer))))
eec82323
LMI
7293
7294(defun gnus-kill-or-deaden-summary (buffer)
7295 "Kill or deaden the summary BUFFER."
6748645f
LMI
7296 (save-excursion
7297 (when (and (buffer-name buffer)
7298 (not gnus-single-article-buffer))
01c52d31 7299 (with-current-buffer buffer
6748645f
LMI
7300 (gnus-kill-buffer gnus-article-buffer)
7301 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7302 (cond
7303 ;; Kill the buffer.
7304 (gnus-kill-summary-on-exit
7305 (when (and gnus-use-trees
7306 (gnus-buffer-exists-p buffer))
c7a91ce1 7307 (with-current-buffer buffer
23f87bed
MB
7308 (gnus-tree-close gnus-newsgroup-name)))
7309 (gnus-kill-buffer buffer))
7310 ;; Deaden the buffer.
7311 ((gnus-buffer-exists-p buffer)
c7a91ce1 7312 (with-current-buffer buffer
23f87bed 7313 (gnus-deaden-summary))))))
eec82323
LMI
7314
7315(defun gnus-summary-wake-up-the-dead (&rest args)
7316 "Wake up the dead summary buffer."
7317 (interactive)
7318 (gnus-dead-summary-mode -1)
7319 (let ((name (buffer-name)))
7320 (when (string-match "Dead " name)
7321 (rename-buffer
7322 (concat (substring name 0 (match-beginning 0))
7323 (substring name (match-end 0)))
7324 t)))
7325 (gnus-message 3 "This dead summary is now alive again"))
7326
7327;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7328(defun gnus-summary-fetch-faq (&optional faq-dir)
7329 "Fetch the FAQ for the current group.
7330If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7331in."
7332 (interactive
7333 (list
7334 (when current-prefix-arg
7335 (completing-read
8f688cb0 7336 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7337 (mapcar 'list
a8151ef7 7338 gnus-group-faq-directory))))))
eec82323
LMI
7339 (let (gnus-faq-buffer)
7340 (when (setq gnus-faq-buffer
7341 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7342 (gnus-configure-windows 'summary-faq))))
7343
7344;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7345(defun gnus-summary-describe-group (&optional force)
7346 "Describe the current newsgroup."
7347 (interactive "P")
7348 (gnus-group-describe-group force gnus-newsgroup-name))
7349
7350(defun gnus-summary-describe-briefly ()
7351 "Describe summary mode commands briefly."
7352 (interactive)
bdaa75c7 7353 (gnus-message 6 "%s" (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
7354
7355;; Walking around group mode buffer from summary mode.
7356
7357(defun gnus-summary-next-group (&optional no-article target-group backward)
7358 "Exit current newsgroup and then select next unread newsgroup.
7359If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7360initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7361previous group instead."
7362 (interactive "P")
eec82323
LMI
7363 ;; Stop pre-fetching.
7364 (gnus-async-halt-prefetch)
7365 (let ((current-group gnus-newsgroup-name)
7366 (current-buffer (current-buffer))
7367 entered)
7368 ;; First we semi-exit this group to update Xrefs and all variables.
7369 ;; We can't do a real exit, because the window conf must remain
7370 ;; the same in case the user is prompted for info, and we don't
7371 ;; want the window conf to change before that...
7372 (gnus-summary-exit t)
7373 (while (not entered)
7374 ;; Then we find what group we are supposed to enter.
7375 (set-buffer gnus-group-buffer)
7376 (gnus-group-jump-to-group current-group)
7377 (setq target-group
7378 (or target-group
7379 (if (eq gnus-keep-same-level 'best)
7380 (gnus-summary-best-group gnus-newsgroup-name)
7381 (gnus-summary-search-group backward gnus-keep-same-level))))
7382 (if (not target-group)
7383 ;; There are no further groups, so we return to the group
7384 ;; buffer.
7385 (progn
7386 (gnus-message 5 "Returning to the group buffer")
7387 (setq entered t)
7388 (when (gnus-buffer-live-p current-buffer)
7389 (set-buffer current-buffer)
7390 (gnus-summary-exit))
6748645f 7391 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7392 ;; We try to enter the target group.
7393 (gnus-group-jump-to-group target-group)
7394 (let ((unreads (gnus-group-group-unread)))
7395 (if (and (or (eq t unreads)
7396 (and unreads (not (zerop unreads))))
23f87bed
MB
7397 (gnus-summary-read-group
7398 target-group nil no-article
7399 (and (buffer-name current-buffer) current-buffer)
7400 nil backward))
eec82323
LMI
7401 (setq entered t)
7402 (setq current-group target-group
7403 target-group nil)))))))
7404
7405(defun gnus-summary-prev-group (&optional no-article)
7406 "Exit current newsgroup and then select previous unread newsgroup.
7407If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7408 (interactive "P")
7409 (gnus-summary-next-group no-article nil t))
7410
7411;; Walking around summary lines.
7412
23f87bed
MB
7413(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7414 "Go to the first subject satisfying any non-nil constraint.
7415If UNREAD is non-nil, the article should be unread.
7416If UNDOWNLOADED is non-nil, the article should be undownloaded.
20a673b2 7417If UNSEEN is non-nil, the article should be unseen as well as unread.
23f87bed 7418Returns the article selected or nil if there are no matching articles."
eec82323 7419 (interactive "P")
23f87bed
MB
7420 (cond
7421 ;; Empty summary.
7422 ((null gnus-newsgroup-data)
7423 (gnus-message 3 "No articles in the group")
7424 nil)
7425 ;; Pick the first article.
7426 ((not (or unread undownloaded unseen))
7427 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7428 (gnus-data-number (car gnus-newsgroup-data)))
7429 ;; Find the first unread article.
7430 (t
7431 (let ((data gnus-newsgroup-data))
7432 (while (and data
7433 (let ((num (gnus-data-number (car data))))
7434 (or (memq num gnus-newsgroup-unfetched)
7435 (not (or (and unread
7436 (memq num gnus-newsgroup-unreads))
7437 (and undownloaded
7438 (memq num gnus-newsgroup-undownloaded))
7439 (and unseen
20a673b2
KY
7440 (memq num gnus-newsgroup-unseen)
7441 (memq num gnus-newsgroup-unreads)))))))
23f87bed
MB
7442 (setq data (cdr data)))
7443 (prog1
7444 (if data
7445 (progn
7446 (goto-char (gnus-data-pos (car data)))
7447 (gnus-data-number (car data)))
7448 (gnus-message 3 "No more%s articles"
7449 (let* ((r (when unread " unread"))
7450 (d (when undownloaded " undownloaded"))
7451 (s (when unseen " unseen"))
7452 (l (delq nil (list r d s))))
7453 (cond ((= 3 (length l))
7454 (concat r "," d ", or" s))
7455 ((= 2 (length l))
7456 (concat (car l) ", or" (cadr l)))
7457 ((= 1 (length l))
7458 (car l))
7459 (t
7460 ""))))
7461 nil
7462 )
7463 (gnus-summary-position-point))))))
eec82323
LMI
7464
7465(defun gnus-summary-next-subject (n &optional unread dont-display)
7466 "Go to next N'th summary line.
7467If N is negative, go to the previous N'th subject line.
7468If UNREAD is non-nil, only unread articles are selected.
7469The difference between N and the actual number of steps taken is
7470returned."
7471 (interactive "p")
7472 (let ((backward (< n 0))
7473 (n (abs n)))
7474 (while (and (> n 0)
7475 (if backward
7476 (gnus-summary-find-prev unread)
7477 (gnus-summary-find-next unread)))
16409b0b
GM
7478 (unless (zerop (setq n (1- n)))
7479 (gnus-summary-show-thread)))
eec82323
LMI
7480 (when (/= 0 n)
7481 (gnus-message 7 "No more%s articles"
7482 (if unread " unread" "")))
7483 (unless dont-display
7484 (gnus-summary-recenter)
7485 (gnus-summary-position-point))
7486 n))
7487
7488(defun gnus-summary-next-unread-subject (n)
7489 "Go to next N'th unread summary line."
7490 (interactive "p")
7491 (gnus-summary-next-subject n t))
7492
7493(defun gnus-summary-prev-subject (n &optional unread)
7494 "Go to previous N'th summary line.
7495If optional argument UNREAD is non-nil, only unread article is selected."
7496 (interactive "p")
7497 (gnus-summary-next-subject (- n) unread))
7498
7499(defun gnus-summary-prev-unread-subject (n)
7500 "Go to previous N'th unread summary line."
7501 (interactive "p")
7502 (gnus-summary-next-subject (- n) t))
7503
23f87bed
MB
7504(defun gnus-summary-goto-subjects (articles)
7505 "Insert the subject header for ARTICLES in the current buffer."
7506 (save-excursion
7507 (dolist (article articles)
7508 (gnus-summary-goto-subject article t)))
7509 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7510 (gnus-summary-position-point))
132cf96d 7511
eec82323 7512(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7513 "Go to the subject line of ARTICLE.
eec82323
LMI
7514If FORCE, also allow jumping to articles not currently shown."
7515 (interactive "nArticle number: ")
23f87bed
MB
7516 (unless (numberp article)
7517 (error "Article %s is not a number" article))
eec82323
LMI
7518 (let ((b (point))
7519 (data (gnus-data-find article)))
7520 ;; We read in the article if we have to.
7521 (and (not data)
7522 force
6748645f
LMI
7523 (gnus-summary-insert-subject
7524 article
7525 (if (or (numberp force) (vectorp force)) force)
7526 t)
eec82323
LMI
7527 (setq data (gnus-data-find article)))
7528 (goto-char b)
7529 (if (not data)
7530 (progn
7531 (unless silent
7532 (gnus-message 3 "Can't find article %d" article))
7533 nil)
23f87bed
MB
7534 (let ((pt (gnus-data-pos data)))
7535 (goto-char pt)
7536 (gnus-summary-set-article-display-arrow pt))
6748645f 7537 (gnus-summary-position-point)
eec82323
LMI
7538 article)))
7539
7540;; Walking around summary lines with displaying articles.
7541
7542(defun gnus-summary-expand-window (&optional arg)
7543 "Make the summary buffer take up the entire Emacs frame.
7544Given a prefix, will force an `article' buffer configuration."
7545 (interactive "P")
eec82323
LMI
7546 (if arg
7547 (gnus-configure-windows 'article 'force)
7548 (gnus-configure-windows 'summary 'force)))
7549
7550(defun gnus-summary-display-article (article &optional all-header)
7551 "Display ARTICLE in article buffer."
01c52d31
MB
7552 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7553 (with-current-buffer gnus-article-buffer
7554 (eq major-mode 'gnus-article-mode)))
7555 (gnus-article-setup-buffer))
eec82323 7556 (gnus-set-global-variables)
01c52d31
MB
7557 (with-current-buffer gnus-article-buffer
7558 (setq gnus-article-charset gnus-newsgroup-charset)
7559 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7560 (mm-enable-multibyte))
eec82323
LMI
7561 (if (null article)
7562 nil
7563 (prog1
7564 (if gnus-summary-display-article-function
7565 (funcall gnus-summary-display-article-function article all-header)
7566 (gnus-article-prepare article all-header))
6748645f 7567 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7568 (when (and gnus-current-article
7569 (not (zerop gnus-current-article)))
7570 (gnus-summary-goto-subject gnus-current-article))
7571 (gnus-summary-recenter)
7572 (when (and gnus-use-trees gnus-show-threads)
7573 (gnus-possibly-generate-tree article)
7574 (gnus-highlight-selected-tree article))
7575 ;; Successfully display article.
7576 (gnus-article-set-window-start
7577 (cdr (assq article gnus-newsgroup-bookmarks))))))
7578
7579(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7580 "Select the current article.
7581If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7582non-nil, the article will be re-fetched even if it already present in
7583the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7584be displayed."
7585 ;; Make sure we are in the summary buffer to work around bbdb bug.
7586 (unless (eq major-mode 'gnus-summary-mode)
7587 (set-buffer gnus-summary-buffer))
7588 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7589 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7590 gnus-summary-display-article-function)
eec82323
LMI
7591 (and (not pseudo)
7592 (gnus-summary-article-pseudo-p article)
a8151ef7 7593 (error "This is a pseudo-article"))
c7a91ce1 7594 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7595 (if (or (and gnus-single-article-buffer
7596 (or (null gnus-current-article)
7597 (null gnus-article-current)
7598 (null (get-buffer gnus-article-buffer))
7599 (not (eq article (cdr gnus-article-current)))
7600 (not (equal (car gnus-article-current)
7601 gnus-newsgroup-name))))
7602 (and (not gnus-single-article-buffer)
7603 (or (null gnus-current-article)
7604 (not (eq gnus-current-article article))))
7605 force)
7606 ;; The requested article is different from the current article.
7607 (progn
16409b0b
GM
7608 (gnus-summary-display-article article all-headers)
7609 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7610 (with-current-buffer gnus-article-buffer
16409b0b 7611 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7612 (mm-disable-multibyte))))
16409b0b
GM
7613 (gnus-article-set-window-start
7614 (cdr (assq article gnus-newsgroup-bookmarks)))
7615 article)
16409b0b 7616 'old))))
eec82323 7617
23f87bed
MB
7618(defun gnus-summary-force-verify-and-decrypt ()
7619 "Display buttons for signed/encrypted parts and verify/decrypt them."
7620 (interactive)
7621 (let ((mm-verify-option 'known)
7622 (mm-decrypt-option 'known)
7623 (gnus-article-emulate-mime t)
7624 (gnus-buttonized-mime-types (append (list "multipart/signed"
7625 "multipart/encrypted")
7626 gnus-buttonized-mime-types)))
7627 (gnus-summary-select-article nil 'force)))
7628
eec82323
LMI
7629(defun gnus-summary-set-current-mark (&optional current-mark)
7630 "Obsolete function."
7631 nil)
7632
7633(defun gnus-summary-next-article (&optional unread subject backward push)
7634 "Select the next article.
7635If UNREAD, only unread articles are selected.
7636If SUBJECT, only articles with SUBJECT are selected.
7637If BACKWARD, the previous article is selected instead of the next."
7638 (interactive "P")
11e95b02
MB
7639 ;; Make sure we are in the summary buffer.
7640 (unless (eq major-mode 'gnus-summary-mode)
7641 (set-buffer gnus-summary-buffer))
eec82323
LMI
7642 (cond
7643 ;; Is there such an article?
7644 ((and (gnus-summary-search-forward unread subject backward)
7645 (or (gnus-summary-display-article (gnus-summary-article-number))
7646 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7647 (gnus-summary-position-point))
7648 ;; If not, we try the first unread, if that is wanted.
7649 ((and subject
7650 gnus-auto-select-same
7651 (gnus-summary-first-unread-article))
7652 (gnus-summary-position-point)
7653 (gnus-message 6 "Wrapped"))
7654 ;; Try to get next/previous article not displayed in this group.
7655 ((and gnus-auto-extend-newsgroup
7656 (not unread) (not subject))
7657 (gnus-summary-goto-article
7658 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7659 nil (count-lines (point-min) (point))))
eec82323
LMI
7660 ;; Go to next/previous group.
7661 (t
7662 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7663 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7664 (let ((cmd (if (featurep 'xemacs)
7665 last-command-char
7666 last-command-event))
eec82323 7667 (point
01c52d31 7668 (with-current-buffer gnus-group-buffer
eec82323
LMI
7669 (point)))
7670 (group
7671 (if (eq gnus-keep-same-level 'best)
7672 (gnus-summary-best-group gnus-newsgroup-name)
7673 (gnus-summary-search-group backward gnus-keep-same-level))))
7674 ;; For some reason, the group window gets selected. We change
7675 ;; it back.
7676 (select-window (get-buffer-window (current-buffer)))
7677 ;; Select next unread newsgroup automagically.
7678 (cond
7679 ((or (not gnus-auto-select-next)
7680 (not cmd))
7681 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7682 ((or (eq gnus-auto-select-next 'quietly)
7683 (and (eq gnus-auto-select-next 'slightly-quietly)
7684 push)
7685 (and (eq gnus-auto-select-next 'almost-quietly)
7686 (gnus-summary-last-article-p)))
7687 ;; Select quietly.
7688 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7689 (gnus-summary-exit)
7690 (gnus-message 7 "No more%s articles (%s)..."
7691 (if unread " unread" "")
7692 (if group (concat "selecting " group)
7693 "exiting"))
7694 (gnus-summary-next-group nil group backward)))
7695 (t
7696 (when (gnus-key-press-event-p last-input-event)
7697 (gnus-summary-walk-group-buffer
7698 gnus-newsgroup-name cmd unread backward point))))))))
7699
7700(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7701 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7702 (?\C-p (gnus-group-prev-unread-group 1))))
7703 (cursor-in-echo-area t)
23f87bed 7704 keve key group ended prompt)
c7a91ce1 7705 (with-current-buffer gnus-group-buffer
eec82323
LMI
7706 (goto-char start)
7707 (setq group
7708 (if (eq gnus-keep-same-level 'best)
7709 (gnus-summary-best-group gnus-newsgroup-name)
7710 (gnus-summary-search-group backward gnus-keep-same-level))))
7711 (while (not ended)
23f87bed
MB
7712 (setq prompt
7713 (format
7714 "No more%s articles%s " (if unread " unread" "")
7715 (if (and group
7716 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7717 (format " (Type %s for %s [%s])"
91472578
MB
7718 (single-key-description cmd)
7719 (gnus-group-decoded-name group)
01c52d31 7720 (gnus-group-unread group))
23f87bed
MB
7721 (format " (Type %s to exit %s)"
7722 (single-key-description cmd)
91472578 7723 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7724 ;; Confirm auto selection.
23f87bed
MB
7725 (setq key (car (setq keve (gnus-read-event-char prompt)))
7726 ended t)
eec82323
LMI
7727 (cond
7728 ((assq key keystrokes)
7729 (let ((obuf (current-buffer)))
7730 (switch-to-buffer gnus-group-buffer)
7731 (when group
7732 (gnus-group-jump-to-group group))
7733 (eval (cadr (assq key keystrokes)))
7734 (setq group (gnus-group-group-name))
7735 (switch-to-buffer obuf))
7736 (setq ended nil))
7737 ((equal key cmd)
7738 (if (or (not group)
7739 (gnus-ephemeral-group-p gnus-newsgroup-name))
7740 (gnus-summary-exit)
7741 (gnus-summary-next-group nil group backward)))
7742 (t
7743 (push (cdr keve) unread-command-events))))))
7744
7745(defun gnus-summary-next-unread-article ()
7746 "Select unread article after current one."
7747 (interactive)
7748 (gnus-summary-next-article
7749 (or (not (eq gnus-summary-goto-unread 'never))
7750 (gnus-summary-last-article-p (gnus-summary-article-number)))
7751 (and gnus-auto-select-same
7752 (gnus-summary-article-subject))))
7753
7754(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7755 "Select the article before the current one.
eec82323
LMI
7756If UNREAD is non-nil, only unread articles are selected."
7757 (interactive "P")
7758 (gnus-summary-next-article unread subject t))
7759
7760(defun gnus-summary-prev-unread-article ()
7761 "Select unread article before current one."
7762 (interactive)
7763 (gnus-summary-prev-article
7764 (or (not (eq gnus-summary-goto-unread 'never))
7765 (gnus-summary-first-article-p (gnus-summary-article-number)))
7766 (and gnus-auto-select-same
7767 (gnus-summary-article-subject))))
7768
23f87bed 7769(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7770 "Show next page of the selected article.
7771If at the end of the current article, select the next article.
7772LINES says how many lines should be scrolled up.
7773
7774If CIRCULAR is non-nil, go to the start of the article instead of
7775selecting the next article when reaching the end of the current
23f87bed
MB
7776article.
7777
7778If STOP is non-nil, just stop when reaching the end of the message.
7779
7780Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7781 (interactive "P")
7782 (setq gnus-summary-buffer (current-buffer))
7783 (gnus-set-global-variables)
7784 (let ((article (gnus-summary-article-number))
7785 (article-window (get-buffer-window gnus-article-buffer t))
7786 endp)
6748645f
LMI
7787 ;; If the buffer is empty, we have no article.
7788 (unless article
7789 (error "No article to select"))
eec82323
LMI
7790 (gnus-configure-windows 'article)
7791 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7792 (if (and (eq gnus-summary-goto-unread 'never)
7793 (not (gnus-summary-last-article-p article)))
7794 (gnus-summary-next-article)
7795 (gnus-summary-next-unread-article))
7796 (if (or (null gnus-current-article)
7797 (null gnus-article-current)
7798 (/= article (cdr gnus-article-current))
7799 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7800 ;; Selected subject is different from current article's.
7801 (gnus-summary-display-article article)
7802 (when article-window
7803 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7804 (setq endp (or (gnus-article-next-page lines)
7805 (gnus-article-only-boring-p))))
eec82323 7806 (when endp
b1992461 7807 (cond ((or stop gnus-summary-stop-at-end-of-message)
23f87bed
MB
7808 (gnus-message 3 "End of message"))
7809 (circular
eec82323
LMI
7810 (gnus-summary-beginning-of-article))
7811 (lines
7812 (gnus-message 3 "End of message"))
7813 ((null lines)
7814 (if (and (eq gnus-summary-goto-unread 'never)
7815 (not (gnus-summary-last-article-p article)))
7816 (gnus-summary-next-article)
7817 (gnus-summary-next-unread-article))))))))
7818 (gnus-summary-recenter)
7819 (gnus-summary-position-point)))
7820
7821(defun gnus-summary-prev-page (&optional lines move)
7822 "Show previous page of selected article.
7823Argument LINES specifies lines to be scrolled down.
7824If MOVE, move to the previous unread article if point is at
7825the beginning of the buffer."
7826 (interactive "P")
eec82323
LMI
7827 (let ((article (gnus-summary-article-number))
7828 (article-window (get-buffer-window gnus-article-buffer t))
7829 endp)
7830 (gnus-configure-windows 'article)
7831 (if (or (null gnus-current-article)
7832 (null gnus-article-current)
7833 (/= article (cdr gnus-article-current))
7834 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7835 ;; Selected subject is different from current article's.
7836 (gnus-summary-display-article article)
7837 (gnus-summary-recenter)
7838 (when article-window
7839 (gnus-eval-in-buffer-window gnus-article-buffer
7840 (setq endp (gnus-article-prev-page lines)))
7841 (when (and move endp)
7842 (cond (lines
7843 (gnus-message 3 "Beginning of message"))
7844 ((null lines)
7845 (if (and (eq gnus-summary-goto-unread 'never)
7846 (not (gnus-summary-first-article-p article)))
7847 (gnus-summary-prev-article)
7848 (gnus-summary-prev-unread-article))))))))
7849 (gnus-summary-position-point))
7850
7851(defun gnus-summary-prev-page-or-article (&optional lines)
7852 "Show previous page of selected article.
7853Argument LINES specifies lines to be scrolled down.
7854If at the beginning of the article, go to the next article."
7855 (interactive "P")
7856 (gnus-summary-prev-page lines t))
7857
7858(defun gnus-summary-scroll-up (lines)
7859 "Scroll up (or down) one line current article.
7860Argument LINES specifies lines to be scrolled up (or down if negative)."
7861 (interactive "p")
eec82323
LMI
7862 (gnus-configure-windows 'article)
7863 (gnus-summary-show-thread)
7864 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7865 (gnus-eval-in-buffer-window gnus-article-buffer
7866 (cond ((> lines 0)
7867 (when (gnus-article-next-page lines)
7868 (gnus-message 3 "End of message")))
7869 ((< lines 0)
7870 (gnus-article-prev-page (- lines))))))
7871 (gnus-summary-recenter)
7872 (gnus-summary-position-point))
7873
6748645f
LMI
7874(defun gnus-summary-scroll-down (lines)
7875 "Scroll down (or up) one line current article.
7876Argument LINES specifies lines to be scrolled down (or up if negative)."
7877 (interactive "p")
7878 (gnus-summary-scroll-up (- lines)))
7879
eec82323
LMI
7880(defun gnus-summary-next-same-subject ()
7881 "Select next article which has the same subject as current one."
7882 (interactive)
eec82323
LMI
7883 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7884
7885(defun gnus-summary-prev-same-subject ()
7886 "Select previous article which has the same subject as current one."
7887 (interactive)
eec82323
LMI
7888 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7889
7890(defun gnus-summary-next-unread-same-subject ()
7891 "Select next unread article which has the same subject as current one."
7892 (interactive)
eec82323
LMI
7893 (gnus-summary-next-article t (gnus-summary-article-subject)))
7894
7895(defun gnus-summary-prev-unread-same-subject ()
7896 "Select previous unread article which has the same subject as current one."
7897 (interactive)
eec82323
LMI
7898 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7899
7900(defun gnus-summary-first-unread-article ()
7901 "Select the first unread article.
7902Return nil if there are no unread articles."
7903 (interactive)
eec82323
LMI
7904 (prog1
7905 (when (gnus-summary-first-subject t)
7906 (gnus-summary-show-thread)
7907 (gnus-summary-first-subject t)
7908 (gnus-summary-display-article (gnus-summary-article-number)))
7909 (gnus-summary-position-point)))
7910
16409b0b
GM
7911(defun gnus-summary-first-unread-subject ()
7912 "Place the point on the subject line of the first unread article.
7913Return nil if there are no unread articles."
7914 (interactive)
7915 (prog1
7916 (when (gnus-summary-first-subject t)
7917 (gnus-summary-show-thread)
7918 (gnus-summary-first-subject t))
7919 (gnus-summary-position-point)))
7920
23f87bed
MB
7921(defun gnus-summary-first-unseen-subject ()
7922 "Place the point on the subject line of the first unseen article.
7923Return nil if there are no unseen articles."
7924 (interactive)
7925 (prog1
7926 (when (gnus-summary-first-subject nil nil t)
7927 (gnus-summary-show-thread)
7928 (gnus-summary-first-subject nil nil t))
7929 (gnus-summary-position-point)))
7930
7931(defun gnus-summary-first-unseen-or-unread-subject ()
20a673b2
KY
7932 "Place the point on the subject line of the first unseen and unread article.
7933If all article have been seen, on the subject line of the first unread
23f87bed
MB
7934article."
7935 (interactive)
7936 (prog1
7937 (unless (when (gnus-summary-first-subject nil nil t)
7938 (gnus-summary-show-thread)
7939 (gnus-summary-first-subject nil nil t))
7940 (when (gnus-summary-first-subject t)
7941 (gnus-summary-show-thread)
7942 (gnus-summary-first-subject t)))
7943 (gnus-summary-position-point)))
7944
eec82323
LMI
7945(defun gnus-summary-first-article ()
7946 "Select the first article.
7947Return nil if there are no articles."
7948 (interactive)
eec82323
LMI
7949 (prog1
7950 (when (gnus-summary-first-subject)
16409b0b
GM
7951 (gnus-summary-show-thread)
7952 (gnus-summary-first-subject)
7953 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7954 (gnus-summary-position-point)))
7955
23f87bed
MB
7956(defun gnus-summary-best-unread-article (&optional arg)
7957 "Select the unread article with the highest score.
7958If given a prefix argument, select the next unread article that has a
7959score higher than the default score."
7960 (interactive "P")
7961 (let ((article (if arg
7962 (gnus-summary-better-unread-subject)
7963 (gnus-summary-best-unread-subject))))
7964 (if article
7965 (gnus-summary-goto-article article)
7966 (error "No unread articles"))))
7967
7968(defun gnus-summary-best-unread-subject ()
7969 "Select the unread subject with the highest score."
eec82323 7970 (interactive)
eec82323
LMI
7971 (let ((best -1000000)
7972 (data gnus-newsgroup-data)
7973 article score)
7974 (while data
7975 (and (gnus-data-unread-p (car data))
7976 (> (setq score
7977 (gnus-summary-article-score (gnus-data-number (car data))))
7978 best)
7979 (setq best score
7980 article (gnus-data-number (car data))))
7981 (setq data (cdr data)))
23f87bed
MB
7982 (when article
7983 (gnus-summary-goto-subject article))
7984 (gnus-summary-position-point)
7985 article))
7986
7987(defun gnus-summary-better-unread-subject ()
7988 "Select the first unread subject that has a score over the default score."
7989 (interactive)
7990 (let ((data gnus-newsgroup-data)
7991 article score)
7992 (while (and (setq article (gnus-data-number (car data)))
7993 (or (gnus-data-read-p (car data))
7994 (not (> (gnus-summary-article-score article)
7995 gnus-summary-default-score))))
7996 (setq data (cdr data)))
7997 (when article
7998 (gnus-summary-goto-subject article))
7999 (gnus-summary-position-point)
8000 article))
eec82323
LMI
8001
8002(defun gnus-summary-last-subject ()
8003 "Go to the last displayed subject line in the group."
8004 (let ((article (gnus-data-number (car (gnus-data-list t)))))
8005 (when article
8006 (gnus-summary-goto-subject article))))
8007
8008(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
8009 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
8010If ALL-HEADERS is non-nil, no header lines are hidden.
8011If FORCE, go to the article even if it isn't displayed. If FORCE
8012is a number, it is the line the article is to be displayed on."
eec82323
LMI
8013 (interactive
8014 (list
6748645f
LMI
8015 (completing-read
8016 "Article number or Message-ID: "
8017 (mapcar (lambda (number) (list (int-to-string number)))
8018 gnus-newsgroup-limit))
eec82323
LMI
8019 current-prefix-arg
8020 t))
8021 (prog1
6748645f 8022 (if (and (stringp article)
23f87bed 8023 (string-match "@\\|%40" article))
6748645f
LMI
8024 (gnus-summary-refer-article article)
8025 (when (stringp article)
8026 (setq article (string-to-number article)))
8027 (if (gnus-summary-goto-subject article force)
8028 (gnus-summary-display-article article all-headers)
8029 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
8030 (gnus-summary-position-point)))
8031
8032(defun gnus-summary-goto-last-article ()
8033 "Go to the previously read article."
8034 (interactive)
8035 (prog1
8036 (when gnus-last-article
6748645f 8037 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8038 (gnus-summary-position-point)))
8039
8040(defun gnus-summary-pop-article (number)
8041 "Pop one article off the history and go to the previous.
8042NUMBER articles will be popped off."
8043 (interactive "p")
8044 (let (to)
8045 (setq gnus-newsgroup-history
8046 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8047 (if to
6748645f 8048 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8049 (error "Article history empty")))
8050 (gnus-summary-position-point))
8051
8052;; Summary commands and functions for limiting the summary buffer.
8053
8054(defun gnus-summary-limit-to-articles (n)
8055 "Limit the summary buffer to the next N articles.
8056If not given a prefix, use the process marked articles instead."
8057 (interactive "P")
eec82323
LMI
8058 (prog1
8059 (let ((articles (gnus-summary-work-articles n)))
8060 (setq gnus-newsgroup-processable nil)
8061 (gnus-summary-limit articles))
8062 (gnus-summary-position-point)))
8063
8064(defun gnus-summary-pop-limit (&optional total)
8065 "Restore the previous limit.
8066If given a prefix, remove all limits."
8067 (interactive "P")
eec82323
LMI
8068 (when total
8069 (setq gnus-newsgroup-limits
8070 (list (mapcar (lambda (h) (mail-header-number h))
8071 gnus-newsgroup-headers))))
8072 (unless gnus-newsgroup-limits
8073 (error "No limit to pop"))
8074 (prog1
8075 (gnus-summary-limit nil 'pop)
8076 (gnus-summary-position-point)))
8077
47b63dfa
SZ
8078(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8079 "Limit the summary buffer to articles that have subjects that match a regexp.
8080If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8081 (interactive
47b63dfa
SZ
8082 (list (read-string (if current-prefix-arg
8083 "Exclude subject (regexp): "
a1506d29 8084 "Limit to subject (regexp): "))
47b63dfa 8085 nil current-prefix-arg))
eec82323
LMI
8086 (unless header
8087 (setq header "subject"))
8088 (when (not (equal "" subject))
8089 (prog1
8090 (let ((articles (gnus-summary-find-matching
a1506d29 8091 (or header "subject") subject 'all nil nil
47b63dfa 8092 not-matching)))
eec82323
LMI
8093 (unless articles
8094 (error "Found no matches for \"%s\"" subject))
8095 (gnus-summary-limit articles))
8096 (gnus-summary-position-point))))
8097
ef6e0ec7 8098(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8099 "Limit the summary buffer to articles that have authors that match a regexp.
8100If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8101 (interactive
47b63dfa
SZ
8102 (list (read-string (if current-prefix-arg
8103 "Exclude author (regexp): "
a1506d29 8104 "Limit to author (regexp): "))
ef6e0ec7
SZ
8105 current-prefix-arg))
8106 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8107
01c52d31
MB
8108(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8109 "Limit the summary buffer to articles with the given RECIPIENT.
8110
8111If NOT-MATCHING, exclude RECIPIENT.
8112
8113To and Cc headers are checked. You need to include them in
8114`nnmail-extra-headers'."
8115 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8116 (interactive
8117 (list (read-string (format "%s recipient (regexp): "
8118 (if current-prefix-arg "Exclude" "Limit to")))
8119 current-prefix-arg))
8120 (when (not (equal "" recipient))
8121 (prog1 (let* ((to
8122 (if (memq 'To nnmail-extra-headers)
8123 (gnus-summary-find-matching
8124 (cons 'extra 'To) recipient 'all nil nil
8125 not-matching)
8126 (gnus-message
8127 1 "`To' isn't present in `nnmail-extra-headers'")
8128 (sit-for 1)
8129 nil))
8130 (cc
8131 (if (memq 'Cc nnmail-extra-headers)
8132 (gnus-summary-find-matching
8133 (cons 'extra 'Cc) recipient 'all nil nil
8134 not-matching)
8135 (gnus-message
8136 1 "`Cc' isn't present in `nnmail-extra-headers'")
8137 (sit-for 1)
8138 nil))
8139 (articles
8140 (if not-matching
8141 ;; We need the numbers that are in both lists:
8142 (mapcar (lambda (a)
8143 (and (memq a to) a))
8144 cc)
8145 (nconc to cc))))
8146 (unless articles
8147 (error "Found no matches for \"%s\"" recipient))
8148 (gnus-summary-limit articles))
8149 (gnus-summary-position-point))))
8150
8151(defun gnus-summary-limit-to-address (address &optional not-matching)
8152 "Limit the summary buffer to articles with the given ADDRESS.
8153
8154If NOT-MATCHING, exclude ADDRESS.
8155
8156To, Cc and From headers are checked. You need to include `To' and `Cc'
8157in `nnmail-extra-headers'."
8158 (interactive
8159 (list (read-string (format "%s address (regexp): "
8160 (if current-prefix-arg "Exclude" "Limit to")))
8161 current-prefix-arg))
8162 (when (not (equal "" address))
8163 (prog1 (let* ((to
8164 (if (memq 'To nnmail-extra-headers)
8165 (gnus-summary-find-matching
8166 (cons 'extra 'To) address 'all nil nil
8167 not-matching)
8168 (gnus-message
8169 1 "`To' isn't present in `nnmail-extra-headers'")
8170 (sit-for 1)
8171 t))
8172 (cc
8173 (if (memq 'Cc nnmail-extra-headers)
8174 (gnus-summary-find-matching
8175 (cons 'extra 'Cc) address 'all nil nil
8176 not-matching)
8177 (gnus-message
8178 1 "`Cc' isn't present in `nnmail-extra-headers'")
8179 (sit-for 1)
8180 t))
8181 (from
8182 (gnus-summary-find-matching "from" address
8183 'all nil nil not-matching))
8184 (articles
8185 (if not-matching
8186 ;; We need the numbers that are in all lists:
8187 (if (eq cc t)
8188 (if (eq to t)
8189 from
8190 (mapcar (lambda (a) (car (memq a from))) to))
8191 (if (eq to t)
8192 (mapcar (lambda (a) (car (memq a from))) cc)
8193 (mapcar (lambda (a) (car (memq a from)))
8194 (mapcar (lambda (a) (car (memq a to)))
8195 cc))))
8196 (nconc (if (eq to t) nil to)
8197 (if (eq cc t) nil cc)
8198 from))))
8199 (unless articles
8200 (error "Found no matches for \"%s\"" address))
8201 (gnus-summary-limit articles))
8202 (gnus-summary-position-point))))
8203
8204(defun gnus-summary-limit-strange-charsets-predicate (header)
765d4319
KY
8205 (when (fboundp 'char-charset)
8206 (let ((string (concat (mail-header-subject header)
8207 (mail-header-from header)))
8208 charset found)
8209 (dotimes (i (1- (length string)))
8210 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8211 (when (string-match "unicode\\|big\\|japanese" charset)
8212 (setq found t)))
8213 found)))
01c52d31
MB
8214
8215(defun gnus-summary-limit-to-predicate (predicate)
8216 "Limit to articles where PREDICATE returns non-nil.
8217PREDICATE will be called with the header structures of the
8218articles."
8219 (let ((articles nil)
8220 (case-fold-search t))
8221 (dolist (header gnus-newsgroup-headers)
8222 (when (funcall predicate header)
8223 (push (mail-header-number header) articles)))
8224 (gnus-summary-limit (nreverse articles))))
8225
eec82323
LMI
8226(defun gnus-summary-limit-to-age (age &optional younger-p)
8227 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8228If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8229articles that are younger than AGE days."
16409b0b
GM
8230 (interactive
8231 (let ((younger current-prefix-arg)
8232 (days-got nil)
8233 days)
8234 (while (not days-got)
8235 (setq days (if younger
23f87bed
MB
8236 (read-string "Limit to articles younger than (in days, older when negative): ")
8237 (read-string
8238 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8239 (when (> (length days) 0)
8240 (setq days (read days)))
8241 (if (numberp days)
23f87bed
MB
8242 (progn
8243 (setq days-got t)
01c52d31
MB
8244 (when (< days 0)
8245 (setq younger (not younger))
8246 (setq days (* days -1))))
16409b0b
GM
8247 (message "Please enter a number.")
8248 (sleep-for 1)))
8249 (list days younger)))
eec82323
LMI
8250 (prog1
8251 (let ((data gnus-newsgroup-data)
16409b0b 8252 (cutoff (days-to-time age))
eec82323
LMI
8253 articles d date is-younger)
8254 (while (setq d (pop data))
8255 (when (and (vectorp (gnus-data-header d))
8256 (setq date (mail-header-date (gnus-data-header d))))
16409b0b 8257 (setq is-younger (time-less-p
3d6e7a43 8258 (time-since (gnus-date-get-time date))
eec82323 8259 cutoff))
6748645f
LMI
8260 (when (if younger-p
8261 is-younger
8262 (not is-younger))
eec82323
LMI
8263 (push (gnus-data-number d) articles))))
8264 (gnus-summary-limit (nreverse articles)))
8265 (gnus-summary-position-point)))
8266
47b63dfa 8267(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8268 "Limit the summary buffer to articles that match an 'extra' header."
8269 (interactive
8270 (let ((header
8271 (intern
23f87bed 8272 (gnus-completing-read-with-default
16409b0b 8273 (symbol-name (car gnus-extra-headers))
47b63dfa 8274 (if current-prefix-arg
81df110a
RF
8275 "Exclude extra header"
8276 "Limit extra header")
16409b0b
GM
8277 (mapcar (lambda (x)
8278 (cons (symbol-name x) x))
8279 gnus-extra-headers)
8280 nil
8281 t))))
8282 (list header
a1506d29 8283 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8284 (if current-prefix-arg "Exclude" "Limit to")
8285 header))
8286 current-prefix-arg)))
16409b0b
GM
8287 (when (not (equal "" regexp))
8288 (prog1
8289 (let ((articles (gnus-summary-find-matching
a1506d29 8290 (cons 'extra header) regexp 'all nil nil
47b63dfa 8291 not-matching)))
16409b0b
GM
8292 (unless articles
8293 (error "Found no matches for \"%s\"" regexp))
8294 (gnus-summary-limit articles))
8295 (gnus-summary-position-point))))
8296
23f87bed
MB
8297(defun gnus-summary-limit-to-display-predicate ()
8298 "Limit the summary buffer to the predicated in the `display' group parameter."
8299 (interactive)
8300 (unless gnus-newsgroup-display
8301 (error "There is no `display' group parameter"))
8302 (let (articles)
8303 (dolist (number gnus-newsgroup-articles)
8304 (when (funcall gnus-newsgroup-display)
8305 (push number articles)))
8306 (gnus-summary-limit articles))
8307 (gnus-summary-position-point))
8308
eec82323
LMI
8309(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8310(make-obsolete
265ac10b 8311 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread "Emacs 20.4")
eec82323
LMI
8312
8313(defun gnus-summary-limit-to-unread (&optional all)
8314 "Limit the summary buffer to articles that are not marked as read.
8315If ALL is non-nil, limit strictly to unread articles."
8316 (interactive "P")
8317 (if all
8318 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8319 (gnus-summary-limit-to-marks
8320 ;; Concat all the marks that say that an article is read and have
8321 ;; those removed.
8322 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8323 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8324 gnus-low-score-mark gnus-expirable-mark
8325 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
c4d82de8 8326 gnus-duplicate-mark)
eec82323
LMI
8327 'reverse)))
8328
01c52d31
MB
8329(defun gnus-summary-limit-to-headers (match &optional reverse)
8330 "Limit the summary buffer to articles that have headers that match MATCH.
8331If REVERSE (the prefix), limit to articles that don't match."
8332 (interactive "sMatch headers (regexp): \nP")
8333 (gnus-summary-limit-to-bodies match reverse t))
8334
8335(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8336 "Limit the summary buffer to articles that have bodies that match MATCH.
8337If REVERSE (the prefix), limit to articles that don't match."
8338 (interactive "sMatch body (regexp): \nP")
8339 (let ((articles nil)
8340 (gnus-select-article-hook nil) ;Disable hook.
8341 (gnus-article-prepare-hook nil)
8342 (gnus-use-article-prefetch nil)
8343 (gnus-keep-backlog nil)
8344 (gnus-break-pages nil)
8345 (gnus-summary-display-arrow nil)
8346 (gnus-updated-mode-lines nil)
8347 (gnus-auto-center-summary nil)
8348 (gnus-display-mime-function nil))
8349 (dolist (data gnus-newsgroup-data)
8350 (let (gnus-mark-article-hook)
8351 (gnus-summary-select-article t t nil (gnus-data-number data)))
398a825b 8352 (with-current-buffer gnus-article-buffer
01c52d31
MB
8353 (article-goto-body)
8354 (let* ((case-fold-search t)
8355 (found (if headersp
8356 (re-search-backward match nil t)
8357 (re-search-forward match nil t))))
8358 (when (or (and found
8359 (not reverse))
8360 (and (not found)
8361 reverse))
8362 (push (gnus-data-number data) articles)))))
8363 (if (not articles)
8364 (message "No messages matched")
8365 (gnus-summary-limit articles)))
8366 (gnus-summary-position-point))
8367
8368(defun gnus-summary-limit-to-singletons (&optional threadsp)
8369 "Limit the summary buffer to articles that aren't part on any thread.
8370If THREADSP (the prefix), limit to articles that are in threads."
8371 (interactive "P")
8372 (let ((articles nil)
8373 thread-articles
8374 threads)
8375 (dolist (thread gnus-newsgroup-threads)
8376 (if (stringp (car thread))
8377 (dolist (thread (cdr thread))
8378 (push thread threads))
8379 (push thread threads)))
8380 (dolist (thread threads)
8381 (setq thread-articles (gnus-articles-in-thread thread))
8382 (when (or (and threadsp
8383 (> (length thread-articles) 1))
8384 (and (not threadsp)
8385 (= (length thread-articles) 1)))
8386 (setq articles (nconc thread-articles articles))))
8387 (if (not articles)
8388 (message "No messages matched")
8389 (gnus-summary-limit articles))
8390 (gnus-summary-position-point)))
8391
8392(defun gnus-summary-limit-to-replied (&optional unreplied)
8393 "Limit the summary buffer to replied articles.
8394If UNREPLIED (the prefix), limit to unreplied articles."
8395 (interactive "P")
8396 (if unreplied
8397 (gnus-summary-limit
8398 (gnus-set-difference gnus-newsgroup-articles
8399 gnus-newsgroup-replied))
8400 (gnus-summary-limit gnus-newsgroup-replied))
8401 (gnus-summary-position-point))
8402
eec82323
LMI
8403(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8404(make-obsolete 'gnus-summary-delete-marked-with
265ac10b 8405 'gnus-summary-limit-exclude-marks "Emacs 20.4")
eec82323
LMI
8406
8407(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8408 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8409If REVERSE, limit the summary buffer to articles that are marked
8410with MARKS. MARKS can either be a string of marks or a list of marks.
8411Returns how many articles were removed."
8412 (interactive "sMarks: ")
8413 (gnus-summary-limit-to-marks marks t))
8414
8415(defun gnus-summary-limit-to-marks (marks &optional reverse)
8416 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8417If REVERSE (the prefix), limit the summary buffer to articles that are
8418not marked with MARKS. MARKS can either be a string of marks or a
8419list of marks.
8420Returns how many articles were removed."
6748645f 8421 (interactive "sMarks: \nP")
eec82323
LMI
8422 (prog1
8423 (let ((data gnus-newsgroup-data)
8424 (marks (if (listp marks) marks
8425 (append marks nil))) ; Transform to list.
8426 articles)
8427 (while data
8428 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8429 (memq (gnus-data-mark (car data)) marks))
8430 (push (gnus-data-number (car data)) articles))
8431 (setq data (cdr data)))
8432 (gnus-summary-limit articles))
8433 (gnus-summary-position-point)))
8434
23f87bed 8435(defun gnus-summary-limit-to-score (score)
eec82323 8436 "Limit to articles with score at or above SCORE."
23f87bed 8437 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8438 (let ((data gnus-newsgroup-data)
8439 articles)
8440 (while data
8441 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8442 score)
8443 (push (gnus-data-number (car data)) articles))
8444 (setq data (cdr data)))
8445 (prog1
8446 (gnus-summary-limit articles)
8447 (gnus-summary-position-point))))
8448
23f87bed
MB
8449(defun gnus-summary-limit-to-unseen ()
8450 "Limit to unseen articles."
8451 (interactive)
8452 (prog1
8453 (gnus-summary-limit gnus-newsgroup-unseen)
8454 (gnus-summary-position-point)))
8455
6748645f 8456(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8457 "Display all the hidden articles that is in the thread with ID in it.
8458When called interactively, ID is the Message-ID of the current
8459article."
6748645f
LMI
8460 (interactive (list (mail-header-id (gnus-summary-article-header))))
8461 (let ((articles (gnus-articles-in-thread
8462 (gnus-id-to-thread (gnus-root-id id)))))
8463 (prog1
8464 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8465 (gnus-summary-limit-include-matching-articles
8466 "subject"
8467 (regexp-quote (gnus-simplify-subject-re
8468 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8469 (gnus-summary-position-point))))
8470
23f87bed
MB
8471(defun gnus-summary-limit-include-matching-articles (header regexp)
8472 "Display all the hidden articles that have HEADERs that match REGEXP."
8473 (interactive (list (read-string "Match on header: ")
8474 (read-string "Regexp: ")))
8475 (let ((articles (gnus-find-matching-articles header regexp)))
8476 (prog1
8477 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8478 (gnus-summary-position-point))))
8479
8480(defun gnus-summary-insert-dormant-articles ()
8481 "Insert all the dormant articles for this group into the current buffer."
8482 (interactive)
8483 (let ((gnus-verbose (max 6 gnus-verbose)))
8484 (if (not gnus-newsgroup-dormant)
db629244 8485 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8486 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8487
01c52d31
MB
8488(defun gnus-summary-insert-ticked-articles ()
8489 "Insert ticked articles for this group into the current buffer."
8490 (interactive)
8491 (let ((gnus-verbose (max 6 gnus-verbose)))
8492 (if (not gnus-newsgroup-marked)
8493 (gnus-message 3 "No ticked articles for this group")
8494 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8495
eec82323 8496(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8497 "Display all the hidden articles that are marked as dormant.
8498Note that this command only works on a subset of the articles currently
8499fetched for this group."
eec82323 8500 (interactive)
eec82323
LMI
8501 (unless gnus-newsgroup-dormant
8502 (error "There are no dormant articles in this group"))
8503 (prog1
8504 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8505 (gnus-summary-position-point)))
8506
8507(defun gnus-summary-limit-exclude-dormant ()
8508 "Hide all dormant articles."
8509 (interactive)
eec82323
LMI
8510 (prog1
8511 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8512 (gnus-summary-position-point)))
8513
8514(defun gnus-summary-limit-exclude-childless-dormant ()
8515 "Hide all dormant articles that have no children."
8516 (interactive)
eec82323
LMI
8517 (let ((data (gnus-data-list t))
8518 articles d children)
8519 ;; Find all articles that are either not dormant or have
8520 ;; children.
8521 (while (setq d (pop data))
8522 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8523 (and (setq children
8524 (gnus-article-children (gnus-data-number d)))
8525 (let (found)
8526 (while children
8527 (when (memq (car children) articles)
8528 (setq children nil
8529 found t))
8530 (pop children))
8531 found)))
8532 (push (gnus-data-number d) articles)))
8533 ;; Do the limiting.
8534 (prog1
8535 (gnus-summary-limit articles)
8536 (gnus-summary-position-point))))
8537
8538(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8539 "Mark all unread excluded articles as read.
8540If ALL, mark even excluded ticked and dormants as read."
8541 (interactive "P")
23f87bed
MB
8542 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8543 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8544 (sort
8545 (mapcar (lambda (h) (mail-header-number h))
8546 gnus-newsgroup-headers)
8547 '<)
23f87bed 8548 gnus-newsgroup-limit))
eec82323 8549 article)
6748645f 8550 (setq gnus-newsgroup-unreads
23f87bed
MB
8551 (gnus-sorted-intersection gnus-newsgroup-unreads
8552 gnus-newsgroup-limit))
eec82323
LMI
8553 (if all
8554 (setq gnus-newsgroup-dormant nil
8555 gnus-newsgroup-marked nil
8556 gnus-newsgroup-reads
8557 (nconc
8558 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8559 gnus-newsgroup-reads))
8560 (while (setq article (pop articles))
8561 (unless (or (memq article gnus-newsgroup-dormant)
8562 (memq article gnus-newsgroup-marked))
8563 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8564
8565(defun gnus-summary-limit (articles &optional pop)
8566 (if pop
8567 ;; We pop the previous limit off the stack and use that.
8568 (setq articles (car gnus-newsgroup-limits)
8569 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8570 ;; We use the new limit, so we push the old limit on the stack.
8571 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8572 ;; Set the limit.
8573 (setq gnus-newsgroup-limit articles)
8574 (let ((total (length gnus-newsgroup-data))
8575 (data (gnus-data-find-list (gnus-summary-article-number)))
8576 (gnus-summary-mark-below nil) ; Inhibit this.
8577 found)
8578 ;; This will do all the work of generating the new summary buffer
8579 ;; according to the new limit.
8580 (gnus-summary-prepare)
8581 ;; Hide any threads, possibly.
23f87bed 8582 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8583 ;; Try to return to the article you were at, or one in the
8584 ;; neighborhood.
8585 (when data
8586 ;; We try to find some article after the current one.
8587 (while data
8588 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8589 (setq data nil
8590 found t))
8591 (setq data (cdr data))))
8592 (unless found
8593 ;; If there is no data, that means that we were after the last
8594 ;; article. The same goes when we can't find any articles
8595 ;; after the current one.
8596 (goto-char (point-max))
8597 (gnus-summary-find-prev))
6748645f 8598 (gnus-set-mode-line 'summary)
eec82323
LMI
8599 ;; We return how many articles were removed from the summary
8600 ;; buffer as a result of the new limit.
8601 (- total (length gnus-newsgroup-data))))
8602
8603(defsubst gnus-invisible-cut-children (threads)
8604 (let ((num 0))
8605 (while threads
8606 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8607 (incf num))
8608 (pop threads))
8609 (< num 2)))
8610
8611(defsubst gnus-cut-thread (thread)
8612 "Go forwards in the thread until we find an article that we want to display."
8613 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8614 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8615 (numberp gnus-fetch-old-headers)
eec82323
LMI
8616 (eq gnus-build-sparse-threads 'some)
8617 (eq gnus-build-sparse-threads 'more))
8618 ;; Deal with old-fetched headers and sparse threads.
8619 (while (and
8620 thread
8621 (or
8622 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8623 (gnus-summary-article-ancient-p
8624 (mail-header-number (car thread))))
6748645f
LMI
8625 (if (or (<= (length (cdr thread)) 1)
8626 (eq gnus-fetch-old-headers 'invisible))
8627 (setq gnus-newsgroup-limit
8628 (delq (mail-header-number (car thread))
8629 gnus-newsgroup-limit)
8630 thread (cadr thread))
8631 (when (gnus-invisible-cut-children (cdr thread))
8632 (let ((th (cdr thread)))
8633 (while th
8634 (if (memq (mail-header-number (caar th))
a8151ef7 8635 gnus-newsgroup-limit)
6748645f
LMI
8636 (setq thread (car th)
8637 th nil)
8638 (setq th (cdr th))))))))))
eec82323
LMI
8639 thread)
8640
8641(defun gnus-cut-threads (threads)
23f87bed 8642 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8643 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8644 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8645 (numberp gnus-fetch-old-headers)
eec82323
LMI
8646 (eq gnus-build-sparse-threads 'some)
8647 (eq gnus-build-sparse-threads 'more))
8648 (let ((th threads))
8649 (while th
8650 (setcar th (gnus-cut-thread (car th)))
8651 (setq th (cdr th)))))
8652 ;; Remove nixed out threads.
8653 (delq nil threads))
8654
8655(defun gnus-summary-initial-limit (&optional show-if-empty)
8656 "Figure out what the initial limit is supposed to be on group entry.
8657This entails weeding out unwanted dormants, low-scored articles,
8658fetch-old-headers verbiage, and so on."
8659 ;; Most groups have nothing to remove.
f394fa25
MB
8660 (unless (or gnus-inhibit-limiting
8661 (and (null gnus-newsgroup-dormant)
8662 (eq gnus-newsgroup-display 'gnus-not-ignore)
8663 (not (eq gnus-fetch-old-headers 'some))
8664 (not (numberp gnus-fetch-old-headers))
8665 (not (eq gnus-fetch-old-headers 'invisible))
8666 (null gnus-summary-expunge-below)
8667 (not (eq gnus-build-sparse-threads 'some))
8668 (not (eq gnus-build-sparse-threads 'more))
8669 (null gnus-thread-expunge-below)
8670 (not gnus-use-nocem)))
eec82323
LMI
8671 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8672 (setq gnus-newsgroup-limit nil)
8673 (mapatoms
8674 (lambda (node)
8675 (unless (car (symbol-value node))
8676 ;; These threads have no parents -- they are roots.
8677 (let ((nodes (cdr (symbol-value node)))
8678 thread)
8679 (while nodes
8680 (if (and gnus-thread-expunge-below
8681 (< (gnus-thread-total-score (car nodes))
8682 gnus-thread-expunge-below))
8683 (gnus-expunge-thread (pop nodes))
8684 (setq thread (pop nodes))
8685 (gnus-summary-limit-children thread))))))
8686 gnus-newsgroup-dependencies)
8687 ;; If this limitation resulted in an empty group, we might
8688 ;; pop the previous limit and use it instead.
8689 (when (and (not gnus-newsgroup-limit)
8690 show-if-empty)
8691 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8692 gnus-newsgroup-limit))
8693
8694(defun gnus-summary-limit-children (thread)
8695 "Return 1 if this subthread is visible and 0 if it is not."
8696 ;; First we get the number of visible children to this thread. This
8697 ;; is done by recursing down the thread using this function, so this
8698 ;; will really go down to a leaf article first, before slowly
8699 ;; working its way up towards the root.
8700 (when thread
04b61ae9 8701 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8702 (children
eec82323
LMI
8703 (if (cdr thread)
8704 (apply '+ (mapcar 'gnus-summary-limit-children
8705 (cdr thread)))
8706 0))
8707 (number (mail-header-number (car thread)))
8708 score)
8709 (if (and
8710 (not (memq number gnus-newsgroup-marked))
8711 (or
8712 ;; If this article is dormant and has absolutely no visible
8713 ;; children, then this article isn't visible.
8714 (and (memq number gnus-newsgroup-dormant)
8715 (zerop children))
8716 ;; If this is "fetch-old-headered" and there is no
8717 ;; visible children, then we don't want this article.
16409b0b
GM
8718 (and (or (eq gnus-fetch-old-headers 'some)
8719 (numberp gnus-fetch-old-headers))
eec82323
LMI
8720 (gnus-summary-article-ancient-p number)
8721 (zerop children))
6748645f
LMI
8722 ;; If this is "fetch-old-headered" and `invisible', then
8723 ;; we don't want this article.
8724 (and (eq gnus-fetch-old-headers 'invisible)
8725 (gnus-summary-article-ancient-p number))
eec82323
LMI
8726 ;; If this is a sparsely inserted article with no children,
8727 ;; we don't want it.
8728 (and (eq gnus-build-sparse-threads 'some)
8729 (gnus-summary-article-sparse-p number)
8730 (zerop children))
8731 ;; If we use expunging, and this article is really
8732 ;; low-scored, then we don't want this article.
8733 (when (and gnus-summary-expunge-below
8734 (< (setq score
8735 (or (cdr (assq number gnus-newsgroup-scored))
8736 gnus-summary-default-score))
8737 gnus-summary-expunge-below))
8738 ;; We increase the expunge-tally here, but that has
8739 ;; nothing to do with the limits, really.
8740 (incf gnus-newsgroup-expunged-tally)
8741 ;; We also mark as read here, if that's wanted.
8742 (when (and gnus-summary-mark-below
8743 (< score gnus-summary-mark-below))
8744 (setq gnus-newsgroup-unreads
8745 (delq number gnus-newsgroup-unreads))
8746 (if gnus-newsgroup-auto-expire
8747 (push number gnus-newsgroup-expirable)
8748 (push (cons number gnus-low-score-mark)
8749 gnus-newsgroup-reads)))
8750 t)
23f87bed
MB
8751 ;; Do the `display' group parameter.
8752 (and gnus-newsgroup-display
8753 (not (funcall gnus-newsgroup-display)))
eec82323 8754 ;; Check NoCeM things.
01c52d31
MB
8755 (when (and gnus-use-nocem
8756 (gnus-nocem-unwanted-article-p
8757 (mail-header-id (car thread))))
8758 (setq gnus-newsgroup-unreads
8759 (delq number gnus-newsgroup-unreads))
8760 t)))
eec82323
LMI
8761 ;; Nope, invisible article.
8762 0
8763 ;; Ok, this article is to be visible, so we add it to the limit
8764 ;; and return 1.
8765 (push number gnus-newsgroup-limit)
8766 1))))
8767
8768(defun gnus-expunge-thread (thread)
8769 "Mark all articles in THREAD as read."
8770 (let* ((number (mail-header-number (car thread))))
8771 (incf gnus-newsgroup-expunged-tally)
8772 ;; We also mark as read here, if that's wanted.
8773 (setq gnus-newsgroup-unreads
8774 (delq number gnus-newsgroup-unreads))
8775 (if gnus-newsgroup-auto-expire
8776 (push number gnus-newsgroup-expirable)
8777 (push (cons number gnus-low-score-mark)
8778 gnus-newsgroup-reads)))
8779 ;; Go recursively through all subthreads.
8780 (mapcar 'gnus-expunge-thread (cdr thread)))
8781
8782;; Summary article oriented commands
8783
8784(defun gnus-summary-refer-parent-article (n)
8785 "Refer parent article N times.
8786If N is negative, go to ancestor -N instead.
8787The difference between N and the number of articles fetched is returned."
8788 (interactive "p")
eec82323
LMI
8789 (let ((skip 1)
8790 error header ref)
8791 (when (not (natnump n))
8792 (setq skip (abs n)
8793 n 1))
8794 (while (and (> n 0)
8795 (not error))
8796 (setq header (gnus-summary-article-header))
8797 (if (and (eq (mail-header-number header)
8798 (cdr gnus-article-current))
8799 (equal gnus-newsgroup-name
8800 (car gnus-article-current)))
8801 ;; If we try to find the parent of the currently
8802 ;; displayed article, then we take a look at the actual
8803 ;; References header, since this is slightly more
8804 ;; reliable than the References field we got from the
8805 ;; server.
c7a91ce1 8806 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8807 (nnheader-narrow-to-headers)
8808 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8809 (when (setq ref (message-fetch-field "in-reply-to"))
8810 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8811 (widen))
8812 (setq ref
8813 ;; It's not the current article, so we take a bet on
8814 ;; the value we got from the server.
8815 (mail-header-references header)))
8816 (if (and ref
8817 (not (equal ref "")))
8818 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8819 (gnus-message 1 "Couldn't find parent"))
8820 (gnus-message 1 "No references in article %d"
8821 (gnus-summary-article-number))
8822 (setq error t))
8823 (decf n))
8824 (gnus-summary-position-point)
8825 n))
8826
8827(defun gnus-summary-refer-references ()
8828 "Fetch all articles mentioned in the References header.
6748645f 8829Return the number of articles fetched."
eec82323 8830 (interactive)
eec82323
LMI
8831 (let ((ref (mail-header-references (gnus-summary-article-header)))
8832 (current (gnus-summary-article-number))
8833 (n 0))
8834 (if (or (not ref)
8835 (equal ref ""))
8836 (error "No References in the current article")
8837 ;; For each Message-ID in the References header...
8838 (while (string-match "<[^>]*>" ref)
8839 (incf n)
8840 ;; ... fetch that article.
8841 (gnus-summary-refer-article
8842 (prog1 (match-string 0 ref)
8843 (setq ref (substring ref (match-end 0))))))
8844 (gnus-summary-goto-subject current)
8845 (gnus-summary-position-point)
8846 n)))
8847
6748645f
LMI
8848(defun gnus-summary-refer-thread (&optional limit)
8849 "Fetch all articles in the current thread.
8850If LIMIT (the numerical prefix), fetch that many old headers instead
8851of what's specified by the `gnus-refer-thread-limit' variable."
8852 (interactive "P")
8853 (let ((id (mail-header-id (gnus-summary-article-header)))
8854 (limit (if limit (prefix-numeric-value limit)
8855 gnus-refer-thread-limit)))
6748645f
LMI
8856 (unless (eq gnus-fetch-old-headers 'invisible)
8857 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8858 ;; Retrieve the headers and read them in.
23f87bed
MB
8859 (if (eq (if (numberp limit)
8860 (gnus-retrieve-headers
8861 (list (min
8862 (+ (mail-header-number
8863 (gnus-summary-article-header))
8864 limit)
8865 gnus-newsgroup-end))
8866 gnus-newsgroup-name (* limit 2))
8867 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8868 ;; headers.
8869 (gnus-retrieve-headers (list gnus-newsgroup-end)
8870 gnus-newsgroup-name limit))
6748645f
LMI
8871 'nov)
8872 (gnus-build-all-threads)
23f87bed 8873 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8874 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8875 (gnus-summary-limit-include-thread id)))
8876
16409b0b
GM
8877(defun gnus-summary-refer-article (message-id)
8878 "Fetch an article specified by MESSAGE-ID."
8879 (interactive "sMessage-ID: ")
eec82323
LMI
8880 (when (and (stringp message-id)
8881 (not (zerop (length message-id))))
23f87bed 8882 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8883 ;; Construct the correct Message-ID if necessary.
8884 ;; Suggested by tale@pawl.rpi.edu.
8885 (unless (string-match "^<" message-id)
8886 (setq message-id (concat "<" message-id)))
8887 (unless (string-match ">$" message-id)
8888 (setq message-id (concat message-id ">")))
23f87bed
MB
8889 ;; People often post MIDs from URLs, so unhex it:
8890 (unless (string-match "@" message-id)
8891 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8892 (let* ((header (gnus-id-to-header message-id))
8893 (sparse (and header
8894 (gnus-summary-article-sparse-p
a8151ef7
LMI
8895 (mail-header-number header))
8896 (memq (mail-header-number header)
16409b0b
GM
8897 gnus-newsgroup-limit)))
8898 number)
6748645f
LMI
8899 (cond
8900 ;; If the article is present in the buffer we just go to it.
8901 ((and header
8902 (or (not (gnus-summary-article-sparse-p
8903 (mail-header-number header)))
8904 sparse))
8905 (prog1
8906 (gnus-summary-goto-article
8907 (mail-header-number header) nil t)
8908 (when sparse
8909 (gnus-summary-update-article (mail-header-number header)))))
8910 (t
16409b0b
GM
8911 ;; We fetch the article.
8912 (catch 'found
8913 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8914 (when (and (gnus-check-server gnus-override-method)
8915 ;; Fetch the header,
8916 (setq number (gnus-summary-insert-subject message-id)))
8917 ;; and display the article.
eec82323 8918 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8919 (throw 'found t)))
8920 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8921
8922(defun gnus-refer-article-methods ()
8f688cb0 8923 "Return a list of referable methods."
16409b0b
GM
8924 (cond
8925 ;; No method, so we default to current and native.
8926 ((null gnus-refer-article-method)
8927 (list gnus-current-select-method gnus-select-method))
8928 ;; Current.
8929 ((eq 'current gnus-refer-article-method)
8930 (list gnus-current-select-method))
8931 ;; List of select methods.
d4dfaa19
DL
8932 ((not (and (symbolp (car gnus-refer-article-method))
8933 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8934 (let (out)
8935 (dolist (method gnus-refer-article-method)
8936 (push (if (eq 'current method)
8937 gnus-current-select-method
8938 method)
8939 out))
8940 (nreverse out)))
8941 ;; One single select method.
8942 (t
8943 (list gnus-refer-article-method))))
6748645f
LMI
8944
8945(defun gnus-summary-edit-parameters ()
8946 "Edit the group parameters of the current group."
8947 (interactive)
8948 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8949
16409b0b
GM
8950(defun gnus-summary-customize-parameters ()
8951 "Customize the group parameters of the current group."
8952 (interactive)
8953 (gnus-group-customize gnus-newsgroup-name))
8954
eec82323
LMI
8955(defun gnus-summary-enter-digest-group (&optional force)
8956 "Enter an nndoc group based on the current article.
8957If FORCE, force a digest interpretation. If not, try
8958to guess what the document format is."
8959 (interactive "P")
eec82323 8960 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8961 (save-window-excursion
8962 (save-excursion
8963 (let (gnus-article-prepare-hook
8964 gnus-display-mime-function
8965 gnus-break-pages)
8966 (gnus-summary-select-article))))
eec82323
LMI
8967 (setq gnus-current-window-configuration conf)
8968 (let* ((name (format "%s-%d"
8969 (gnus-group-prefixed-name
8970 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8971 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8972 gnus-current-article)))
8973 (ogroup gnus-newsgroup-name)
8974 (params (append (gnus-info-params (gnus-get-info ogroup))
8975 (list (cons 'to-group ogroup))
23f87bed 8976 (list (cons 'parent-group ogroup))
eec82323
LMI
8977 (list (cons 'save-article-group ogroup))))
8978 (case-fold-search t)
8979 (buf (current-buffer))
16409b0b 8980 dig to-address)
c7a91ce1 8981 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8982 ;; Have the digest group inherit the main mail address of
8983 ;; the parent article.
23f87bed
MB
8984 (when (setq to-address (or (gnus-fetch-field "reply-to")
8985 (gnus-fetch-field "from")))
343d6628
MB
8986 (setq params
8987 (append
8988 (list (cons 'to-address
8989 (funcall gnus-decode-encoded-address-function
8990 to-address))))))
eec82323
LMI
8991 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8992 (insert-buffer-substring gnus-original-article-buffer)
8993 ;; Remove lines that may lead nndoc to misinterpret the
8994 ;; document type.
8995 (narrow-to-region
8996 (goto-char (point-min))
8997 (or (search-forward "\n\n" nil t) (point)))
8998 (goto-char (point-min))
16409b0b 8999 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9000 (widen))
9001 (unwind-protect
23f87bed 9002 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
9003 (gnus-newsgroup-ephemeral-ignored-charsets
9004 gnus-newsgroup-ignored-charsets))
9005 (gnus-group-read-ephemeral-group
9006 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
9007 (nndoc-article-type
23f87bed
MB
9008 ,(if force 'mbox 'guess)))
9009 t nil nil nil
9010 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
9011 "ADAPT")))))
16409b0b 9012 ;; Make all postings to this group go to the parent group.
23f87bed
MB
9013 (nconc (gnus-info-params (gnus-get-info name))
9014 params)
9015 ;; Couldn't select this doc group.
9016 (switch-to-buffer buf)
9017 (gnus-set-global-variables)
9018 (gnus-configure-windows 'summary)
9019 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
9020 (kill-buffer dig)))))
9021
9022(defun gnus-summary-read-document (n)
9023 "Open a new group based on the current article(s).
9024This will allow you to read digests and other similar
9025documents as newsgroups.
9026Obeys the standard process/prefix convention."
9027 (interactive "P")
01c52d31 9028 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
9029 (params (append (gnus-info-params (gnus-get-info ogroup))
9030 (list (cons 'to-group ogroup))))
01c52d31
MB
9031 group egroup groups vgroup)
9032 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
9033 (setq group (format "%s-%d" gnus-newsgroup-name article))
9034 (gnus-summary-remove-process-mark article)
9035 (when (gnus-summary-display-article article)
398a825b 9036 (save-excursion ;;What for?
16409b0b 9037 (with-temp-buffer
eec82323
LMI
9038 (insert-buffer-substring gnus-original-article-buffer)
9039 ;; Remove some headers that may lead nndoc to make
9040 ;; the wrong guess.
9041 (message-narrow-to-head)
9042 (goto-char (point-min))
01c52d31 9043 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9044 (widen)
9045 (if (setq egroup
9046 (gnus-group-read-ephemeral-group
9047 group `(nndoc ,group (nndoc-address ,(current-buffer))
9048 (nndoc-article-type guess))
9049 t nil t))
9050 (progn
c7a91ce1 9051 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9052 (nconc (gnus-info-params (gnus-get-info egroup))
9053 params)
9054 (push egroup groups))
9055 ;; Couldn't select this doc group.
9056 (gnus-error 3 "Article couldn't be entered"))))))
9057 ;; Now we have selected all the documents.
9058 (cond
9059 ((not groups)
9060 (error "None of the articles could be interpreted as documents"))
9061 ((gnus-group-read-ephemeral-group
9062 (setq vgroup (format
9063 "nnvirtual:%s-%s" gnus-newsgroup-name
9064 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9065 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9066 t
9067 (cons (current-buffer) 'summary)))
9068 (t
9069 (error "Couldn't select virtual nndoc group")))))
9070
9071(defun gnus-summary-isearch-article (&optional regexp-p)
9072 "Do incremental search forward on the current article.
9073If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9074 (interactive "P")
eec82323
LMI
9075 (gnus-summary-select-article)
9076 (gnus-configure-windows 'article)
9077 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9078 (save-restriction
9079 (widen)
9080 (isearch-forward regexp-p))))
eec82323 9081
01c52d31
MB
9082(defun gnus-summary-repeat-search-article-forward ()
9083 "Repeat the previous search forwards."
9084 (interactive)
9085 (unless gnus-last-search-regexp
9086 (error "No previous search"))
9087 (gnus-summary-search-article-forward gnus-last-search-regexp))
9088
9089(defun gnus-summary-repeat-search-article-backward ()
9090 "Repeat the previous search backwards."
9091 (interactive)
9092 (unless gnus-last-search-regexp
9093 (error "No previous search"))
9094 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9095
eec82323
LMI
9096(defun gnus-summary-search-article-forward (regexp &optional backward)
9097 "Search for an article containing REGEXP forward.
9098If BACKWARD, search backward instead."
9099 (interactive
9100 (list (read-string
9101 (format "Search article %s (regexp%s): "
9102 (if current-prefix-arg "backward" "forward")
9103 (if gnus-last-search-regexp
9104 (concat ", default " gnus-last-search-regexp)
9105 "")))
9106 current-prefix-arg))
eec82323
LMI
9107 (if (string-equal regexp "")
9108 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9109 (setq gnus-last-search-regexp regexp)
9110 (setq gnus-article-before-search gnus-current-article))
9111 ;; Intentionally set gnus-last-article.
9112 (setq gnus-last-article gnus-article-before-search)
9113 (let ((gnus-last-article gnus-last-article))
9114 (if (gnus-summary-search-article regexp backward)
9115 (gnus-summary-show-thread)
abc40aab 9116 (signal 'search-failed (list regexp)))))
eec82323
LMI
9117
9118(defun gnus-summary-search-article-backward (regexp)
9119 "Search for an article containing REGEXP backward."
9120 (interactive
9121 (list (read-string
9122 (format "Search article backward (regexp%s): "
9123 (if gnus-last-search-regexp
9124 (concat ", default " gnus-last-search-regexp)
9125 "")))))
9126 (gnus-summary-search-article-forward regexp 'backward))
9127
9128(defun gnus-summary-search-article (regexp &optional backward)
9129 "Search for an article containing REGEXP.
9130Optional argument BACKWARD means do search for backward.
9131`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9132 ;; We have to require this here to make sure that the following
9133 ;; dynamic binding isn't shadowed by autoloading.
9134 (require 'gnus-async)
16409b0b 9135 (require 'gnus-art)
eec82323 9136 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9137 (gnus-article-prepare-hook nil)
eec82323
LMI
9138 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9139 (gnus-use-article-prefetch nil)
9140 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9141 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9142 (gnus-visual nil)
9143 (gnus-keep-backlog nil)
9144 (gnus-break-pages nil)
9145 (gnus-summary-display-arrow nil)
9146 (gnus-updated-mode-lines nil)
9147 (gnus-auto-center-summary nil)
eec82323 9148 (sum (current-buffer))
16409b0b 9149 (gnus-display-mime-function nil)
eec82323
LMI
9150 (found nil)
9151 point)
9152 (gnus-save-hidden-threads
9153 (gnus-summary-select-article)
9154 (set-buffer gnus-article-buffer)
16409b0b 9155 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9156 (when backward
9157 (forward-line -1))
9158 (while (not found)
9159 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9160 (if (if backward
9161 (re-search-backward regexp nil t)
9162 (re-search-forward regexp nil t))
9163 ;; We found the regexp.
9164 (progn
9165 (setq found 'found)
9166 (beginning-of-line)
9167 (set-window-start
9168 (get-buffer-window (current-buffer))
9169 (point))
9170 (forward-line 1)
16409b0b
GM
9171 (set-window-point
9172 (get-buffer-window (current-buffer))
9173 (point))
eec82323
LMI
9174 (set-buffer sum)
9175 (setq point (point)))
9176 ;; We didn't find it, so we go to the next article.
9177 (set-buffer sum)
9178 (setq found 'not)
9179 (while (eq found 'not)
9180 (if (not (if backward (gnus-summary-find-prev)
9181 (gnus-summary-find-next)))
9182 ;; No more articles.
9183 (setq found t)
9184 ;; Select the next article and adjust point.
9185 (unless (gnus-summary-article-sparse-p
9186 (gnus-summary-article-number))
9187 (setq found nil)
9188 (gnus-summary-select-article)
9189 (set-buffer gnus-article-buffer)
9190 (widen)
9191 (goto-char (if backward (point-max) (point-min))))))))
9192 (gnus-message 7 ""))
9193 ;; Return whether we found the regexp.
9194 (when (eq found 'found)
9195 (goto-char point)
9196 (gnus-summary-show-thread)
9197 (gnus-summary-goto-subject gnus-current-article)
9198 (gnus-summary-position-point)
9199 t)))
9200
23f87bed
MB
9201(defun gnus-find-matching-articles (header regexp)
9202 "Return a list of all articles that match REGEXP on HEADER.
9203This search includes all articles in the current group that Gnus has
9204fetched headers for, whether they are displayed or not."
9205 (let ((articles nil)
c7a91ce1 9206 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9207 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9208 (case-fold-search t))
9209 (dolist (header gnus-newsgroup-headers)
9210 (when (string-match regexp (funcall func header))
9211 (push (mail-header-number header) articles)))
9212 (nreverse articles)))
9213
eec82323 9214(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9215 not-case-fold not-matching)
eec82323
LMI
9216 "Return a list of all articles that match REGEXP on HEADER.
9217The search stars on the current article and goes forwards unless
9218BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9219If UNREAD is non-nil, only unread articles will
9220be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9221in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9222not match REGEXP on HEADER."
9223 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9224 articles d func)
9225 (if (consp header)
9226 (if (eq (car header) 'extra)
9227 (setq func
9228 `(lambda (h)
9229 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9230 "")))
9231 (error "%s is an invalid header" header))
9232 (unless (fboundp (intern (concat "mail-header-" header)))
9233 (error "%s is not a valid header" header))
9234 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9235 (dolist (d (if (eq backward 'all)
9236 gnus-newsgroup-data
9237 (gnus-data-find-list
9238 (gnus-summary-article-number)
9239 (gnus-data-list backward))))
9240 (when (and (or (not unread) ; We want all articles...
9241 (gnus-data-unread-p d)) ; Or just unreads.
9242 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9243 (if not-matching
a1506d29 9244 (not (string-match
47b63dfa
SZ
9245 regexp
9246 (funcall func (gnus-data-header d))))
9247 (string-match regexp
9248 (funcall func (gnus-data-header d)))))
9249 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9250 (nreverse articles)))
9251
9252(defun gnus-summary-execute-command (header regexp command &optional backward)
9253 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9254If HEADER is an empty string (or nil), the match is done on the entire
9255article. If BACKWARD (the prefix) is non-nil, search backward instead."
9256 (interactive
9257 (list (let ((completion-ignore-case t))
9258 (completing-read
9259 "Header name: "
23f87bed
MB
9260 (mapcar (lambda (header) (list (format "%s" header)))
9261 (append
9262 '("Number" "Subject" "From" "Lines" "Date"
9263 "Message-ID" "Xref" "References" "Body")
9264 gnus-extra-headers))
eec82323
LMI
9265 nil 'require-match))
9266 (read-string "Regexp: ")
9267 (read-key-sequence "Command: ")
9268 current-prefix-arg))
9269 (when (equal header "Body")
9270 (setq header ""))
eec82323
LMI
9271 ;; Hidden thread subtrees must be searched as well.
9272 (gnus-summary-show-all-threads)
9273 ;; We don't want to change current point nor window configuration.
9274 (save-excursion
9275 (save-window-excursion
23f87bed
MB
9276 (let (gnus-visual
9277 gnus-treat-strip-trailing-blank-lines
9278 gnus-treat-strip-leading-blank-lines
9279 gnus-treat-strip-multiple-blank-lines
9280 gnus-treat-hide-boring-headers
9281 gnus-treat-fold-newsgroups
9282 gnus-article-prepare-hook)
9283 (gnus-message 6 "Executing %s..." (key-description command))
9284 ;; We'd like to execute COMMAND interactively so as to give arguments.
9285 (gnus-execute header regexp
9286 `(call-interactively ',(key-binding command))
9287 backward)
9288 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9289
9290(defun gnus-summary-beginning-of-article ()
9291 "Scroll the article back to the beginning."
9292 (interactive)
eec82323
LMI
9293 (gnus-summary-select-article)
9294 (gnus-configure-windows 'article)
9295 (gnus-eval-in-buffer-window gnus-article-buffer
9296 (widen)
9297 (goto-char (point-min))
23f87bed 9298 (when gnus-break-pages
eec82323
LMI
9299 (gnus-narrow-to-page))))
9300
9301(defun gnus-summary-end-of-article ()
9302 "Scroll to the end of the article."
9303 (interactive)
eec82323
LMI
9304 (gnus-summary-select-article)
9305 (gnus-configure-windows 'article)
9306 (gnus-eval-in-buffer-window gnus-article-buffer
9307 (widen)
9308 (goto-char (point-max))
9309 (recenter -3)
23f87bed 9310 (when gnus-break-pages
eec82323
LMI
9311 (gnus-narrow-to-page))))
9312
23f87bed
MB
9313(defun gnus-summary-print-truncate-and-quote (string &optional len)
9314 "Truncate to LEN and quote all \"(\"'s in STRING."
9315 (gnus-replace-in-string (if (and len (> (length string) len))
9316 (substring string 0 len)
9317 string)
9318 "[()]" "\\\\\\&"))
9319
6748645f 9320(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9321 "Generate and print a PostScript image of the process-marked (mail) articles.
9322
9323If used interactively, print the current article if none are
9324process-marked. With prefix arg, prompt the user for the name of the
9325file to save in.
6748645f 9326
23f87bed
MB
9327When used from Lisp, accept two optional args FILENAME and N. N means
9328to print the next N articles. If N is negative, print the N previous
9329articles. If N is nil and articles have been marked with the process
9330mark, print these instead.
eec82323 9331
16409b0b 9332If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9333printer. If FILENAME is a string, save the PostScript image in a file with
9334that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9335to save in."
676a7cc9 9336 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9337 (dolist (article (gnus-summary-work-articles n))
9338 (gnus-summary-select-article nil nil 'pseudo article)
9339 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9340 (gnus-print-buffer))
676a7cc9
SZ
9341 (gnus-summary-remove-process-mark article))
9342 (ps-despool filename))
eec82323 9343
23f87bed
MB
9344(defun gnus-print-buffer ()
9345 (let ((buffer (generate-new-buffer " *print*")))
9346 (unwind-protect
9347 (progn
9348 (copy-to-buffer buffer (point-min) (point-max))
9349 (set-buffer buffer)
9350 (gnus-remove-text-with-property 'gnus-decoration)
9351 (when (gnus-visual-p 'article-highlight 'highlight)
9352 ;; Copy-to-buffer doesn't copy overlay. So redo
9353 ;; highlight.
9354 (let ((gnus-article-buffer buffer))
9355 (gnus-article-highlight-citation t)
9356 (gnus-article-highlight-signature)
9357 (gnus-article-emphasize)
9358 (gnus-article-delete-invisible-text)))
9359 (let ((ps-left-header
9360 (list
9361 (concat "("
9362 (gnus-summary-print-truncate-and-quote
9363 (mail-header-subject gnus-current-headers)
9364 66) ")")
9365 (concat "("
9366 (gnus-summary-print-truncate-and-quote
9367 (mail-header-from gnus-current-headers)
9368 45) ")")))
9369 (ps-right-header
9370 (list
9371 "/pagenumberstring load"
9372 (concat "("
9373 (mail-header-date gnus-current-headers) ")"))))
9374 (gnus-run-hooks 'gnus-ps-print-hook)
9375 (save-excursion
a7b50e1c 9376 (if ps-print-color-p
23f87bed
MB
9377 (ps-spool-buffer-with-faces)
9378 (ps-spool-buffer)))))
9379 (kill-buffer buffer))))
9380
eec82323 9381(defun gnus-summary-show-article (&optional arg)
23f87bed 9382 "Force redisplaying of the current article.
16409b0b
GM
9383If ARG (the prefix) is a number, show the article with the charset
9384defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9385input.
16409b0b 9386If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9387without any article massaging functions being run. Normally, the key
9388strokes are `C-u g'."
eec82323 9389 (interactive "P")
16409b0b
GM
9390 (cond
9391 ((numberp arg)
23f87bed 9392 (gnus-summary-show-article t)
16409b0b
GM
9393 (let ((gnus-newsgroup-charset
9394 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9395 (mm-read-coding-system
9396 "View as charset: " ;; actually it is coding system.
01c52d31 9397 (with-current-buffer gnus-article-buffer
23f87bed 9398 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9399 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9400 (gnus-summary-select-article nil 'force)
9401 (let ((deps gnus-newsgroup-dependencies)
9402 head header lines)
c7a91ce1 9403 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9404 (save-restriction
9405 (message-narrow-to-head)
9406 (setq head (buffer-string))
9407 (goto-char (point-min))
9408 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9409 (goto-char (point-max))
9410 (widen)
9411 (setq lines (1- (count-lines (point) (point-max))))))
9412 (with-temp-buffer
9413 (insert (format "211 %d Article retrieved.\n"
9414 (cdr gnus-article-current)))
9415 (insert head)
9416 (if lines (insert (format "Lines: %d\n" lines)))
9417 (insert ".\n")
9418 (let ((nntp-server-buffer (current-buffer)))
9419 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9420 (gnus-data-set-header
9421 (gnus-data-find (cdr gnus-article-current))
9422 header)
9423 (gnus-summary-update-article-line
9424 (cdr gnus-article-current) header)
9425 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9426 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9427 ((not arg)
9428 ;; Select the article the normal way.
9429 (gnus-summary-select-article nil 'force))
9430 (t
9431 ;; We have to require this here to make sure that the following
9432 ;; dynamic binding isn't shadowed by autoloading.
9433 (require 'gnus-async)
9434 (require 'gnus-art)
eec82323
LMI
9435 ;; Bind the article treatment functions to nil.
9436 (let ((gnus-have-all-headers t)
eec82323 9437 gnus-article-prepare-hook
16409b0b
GM
9438 gnus-article-decode-hook
9439 gnus-display-mime-function
9440 gnus-break-pages)
9441 ;; Destroy any MIME parts.
9442 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9443 (with-current-buffer gnus-article-buffer
16409b0b
GM
9444 (mm-destroy-parts gnus-article-mime-handles)
9445 ;; Set it to nil for safety reason.
9446 (setq gnus-article-mime-handle-alist nil)
9447 (setq gnus-article-mime-handles nil)))
9448 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9449 (gnus-summary-goto-subject gnus-current-article)
9450 (gnus-summary-position-point))
9451
23f87bed
MB
9452(defun gnus-summary-show-raw-article ()
9453 "Show the raw article without any article massaging functions being run."
9454 (interactive)
9455 (gnus-summary-show-article t))
9456
eec82323
LMI
9457(defun gnus-summary-verbose-headers (&optional arg)
9458 "Toggle permanent full header display.
9459If ARG is a positive number, turn header display on.
9460If ARG is a negative number, turn header display off."
9461 (interactive "P")
eec82323
LMI
9462 (setq gnus-show-all-headers
9463 (cond ((or (not (numberp arg))
9464 (zerop arg))
9465 (not gnus-show-all-headers))
9466 ((natnump arg)
9467 t)))
9468 (gnus-summary-show-article))
9469
9470(defun gnus-summary-toggle-header (&optional arg)
9471 "Show the headers if they are hidden, or hide them if they are shown.
9472If ARG is a positive number, show the entire header.
9473If ARG is a negative number, hide the unwanted header lines."
9474 (interactive "P")
23f87bed
MB
9475 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9476 (get-buffer-window gnus-article-buffer t))))
9477 (with-current-buffer gnus-article-buffer
9478 (widen)
9479 (article-narrow-to-head)
c7a91ce1 9480 (let* ((inhibit-read-only t)
16409b0b 9481 (inhibit-point-motion-hooks t)
23f87bed
MB
9482 (hidden (if (numberp arg)
9483 (>= arg 0)
f0096211
MB
9484 (or (not (looking-at "[^ \t\n]+:"))
9485 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9486 s e)
9487 (delete-region (point-min) (point-max))
667e0ba6
SM
9488 (with-current-buffer gnus-original-article-buffer
9489 (goto-char (setq s (point-min)))
23f87bed
MB
9490 (setq e (if (search-forward "\n\n" nil t)
9491 (1- (point))
9492 (point-max))))
667e0ba6 9493 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9494 (run-hooks 'gnus-article-decode-hook)
9495 (if hidden
9496 (let ((gnus-treat-hide-headers nil)
9497 (gnus-treat-hide-boring-headers nil))
9498 (gnus-delete-wash-type 'headers)
9499 (gnus-treat-article 'head))
9500 (gnus-treat-article 'head))
9501 (widen)
9502 (if window
9503 (set-window-start window (goto-char (point-min))))
9504 (if gnus-break-pages
9505 (gnus-narrow-to-page)
9506 (when (gnus-visual-p 'page-marker)
c7a91ce1 9507 (let ((inhibit-read-only t))
23f87bed
MB
9508 (gnus-remove-text-with-property 'gnus-prev)
9509 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9510 (gnus-set-mode-line 'article)))))
eec82323
LMI
9511
9512(defun gnus-summary-show-all-headers ()
9513 "Make all header lines visible."
9514 (interactive)
23f87bed 9515 (gnus-summary-toggle-header 1))
eec82323 9516
eec82323
LMI
9517(defun gnus-summary-caesar-message (&optional arg)
9518 "Caesar rotate the current article by 13.
01c52d31
MB
9519With a non-numerical prefix, also rotate headers. A numerical
9520prefix specifies how many places to rotate each letter forward."
eec82323 9521 (interactive "P")
eec82323
LMI
9522 (gnus-summary-select-article)
9523 (let ((mail-header-separator ""))
9524 (gnus-eval-in-buffer-window gnus-article-buffer
9525 (save-restriction
9526 (widen)
9527 (let ((start (window-start))
c7a91ce1 9528 (inhibit-read-only t))
01c52d31
MB
9529 (if (equal arg '(4))
9530 (message-caesar-buffer-body nil t)
9531 (message-caesar-buffer-body arg))
ff4d3926
MB
9532 (set-window-start (get-buffer-window (current-buffer)) start)))))
9533 ;; Create buttons and stuff...
9534 (gnus-treat-article nil))
eec82323 9535
704f1663
GM
9536(declare-function idna-to-unicode "ext:idna" (str))
9537
01c52d31
MB
9538(defun gnus-summary-idna-message (&optional arg)
9539 "Decode IDNA encoded domain names in the current articles.
9540IDNA encoded domain names looks like `xn--bar'. If a string
9541remain unencoded after running this function, it is likely an
9542invalid IDNA string (`xn--bar' is invalid).
9543
0b10e437 9544You must have GNU Libidn (URL `http://www.gnu.org/software/libidn/')
01c52d31
MB
9545installed for this command to work."
9546 (interactive "P")
9547 (if (not (and (condition-case nil (require 'idna)
9548 (file-error))
9549 (mm-coding-system-p 'utf-8)
9550 (executable-find (symbol-value 'idna-program))))
9551 (gnus-message
9552 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9553 (gnus-summary-select-article)
9554 (let ((mail-header-separator ""))
9555 (gnus-eval-in-buffer-window gnus-article-buffer
9556 (save-restriction
9557 (widen)
9558 (let ((start (window-start))
9559 buffer-read-only)
9560 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9561 (replace-match (idna-to-unicode (match-string 1))))
9562 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9563
9564(defun gnus-summary-morse-message (&optional arg)
9565 "Morse decode the current article."
9566 (interactive "P")
9567 (gnus-summary-select-article)
9568 (let ((mail-header-separator ""))
9569 (gnus-eval-in-buffer-window gnus-article-buffer
9570 (save-excursion
9571 (save-restriction
9572 (widen)
9573 (let ((pos (window-start))
c7a91ce1 9574 (inhibit-read-only t))
23f87bed
MB
9575 (goto-char (point-min))
9576 (when (message-goto-body)
9577 (gnus-narrow-to-body))
9578 (goto-char (point-min))
01c52d31 9579