(image-type-header-regexps): Use only JPEG magic number
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
e84b4b86
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2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
ae940284 4;; 2005, 2006, 2007, 2008, 2009 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
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32 (require 'cl))
33
34(defvar tool-bar-mode)
35(defvar gnus-tmp-header)
5ab7173c 36
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37(require 'gnus)
38(require 'gnus-group)
39(require 'gnus-spec)
40(require 'gnus-range)
41(require 'gnus-int)
42(require 'gnus-undo)
6748645f 43(require 'gnus-util)
18c06a99 44(require 'gmm-utils)
16409b0b 45(require 'mm-decode)
08c9a385 46(require 'nnoo)
23f87bed 47
6748645f 48(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 49(autoload 'gnus-cache-write-active "gnus-cache")
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50(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
51(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
531e5812 52(autoload 'gnus-pick-line-number "gnus-salt" nil t)
08c9a385 53(autoload 'mm-uu-dissect "mm-uu")
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54(autoload 'gnus-article-outlook-deuglify-article "deuglify"
55 "Deuglify broken Outlook (Express) articles and redisplay."
56 t)
57(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
58(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
59(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
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60
61(defcustom gnus-kill-summary-on-exit t
62 "*If non-nil, kill the summary buffer when you exit from it.
63If nil, the summary will become a \"*Dead Summary*\" buffer, and
64it will be killed sometime later."
65 :group 'gnus-summary-exit
66 :type 'boolean)
67
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68(defcustom gnus-summary-next-group-on-exit t
69 "If non-nil, go to the next unread newsgroup on summary exit.
70See `gnus-group-goto-unread'."
71 :link '(custom-manual "(gnus)Group Maneuvering")
72 :group 'gnus-summary-exit
330f707b 73 :version "23.1" ;; No Gnus
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74 :type 'boolean)
75
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76(defcustom gnus-fetch-old-headers nil
77 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
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78If an unread article in the group refers to an older, already
79read (or just marked as read) article, the old article will not
80normally be displayed in the Summary buffer. If this variable is
81t, Gnus will attempt to grab the headers to the old articles, and
82thereby build complete threads. If it has the value `some', all
83old headers will be fetched but only enough headers to connect
84otherwise loose threads will be displayed. This variable can
85also be a number. In that case, no more than that number of old
86headers will be fetched. If it has the value `invisible', all
6748645f 87old headers will be fetched, but none will be displayed.
eec82323 88
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89The server has to support NOV for any of this to work.
90
91This feature can seriously impact performance it ignores all
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92locally cached header entries. Setting it to t for groups for a
93server that doesn't expire articles (such as news.gmane.org),
94leads to very slow summary generation."
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95 :group 'gnus-thread
96 :type '(choice (const :tag "off" nil)
1232b9cb 97 (const :tag "on" t)
eec82323 98 (const some)
1232b9cb 99 (const invisible)
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100 number
101 (sexp :menu-tag "other" t)))
102
01c52d31 103(defcustom gnus-refer-thread-limit 500
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104 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
105If t, fetch all the available old headers."
106 :group 'gnus-thread
107 :type '(choice number
108 (sexp :menu-tag "other" t)))
109
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110(defcustom gnus-summary-make-false-root 'adopt
111 "*nil means that Gnus won't gather loose threads.
112If the root of a thread has expired or been read in a previous
113session, the information necessary to build a complete thread has been
114lost. Instead of having many small sub-threads from this original thread
115scattered all over the summary buffer, Gnus can gather them.
116
117If non-nil, Gnus will try to gather all loose sub-threads from an
118original thread into one large thread.
119
120If this variable is non-nil, it should be one of `none', `adopt',
121`dummy' or `empty'.
122
123If this variable is `none', Gnus will not make a false root, but just
124present the sub-threads after another.
125If this variable is `dummy', Gnus will create a dummy root that will
126have all the sub-threads as children.
127If this variable is `adopt', Gnus will make one of the \"children\"
128the parent and mark all the step-children as such.
129If this variable is `empty', the \"children\" are printed with empty
01ccbb85 130subject fields. (Or rather, they will be printed with a string
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131given by the `gnus-summary-same-subject' variable.)"
132 :group 'gnus-thread
133 :type '(choice (const :tag "off" nil)
134 (const none)
135 (const dummy)
136 (const adopt)
137 (const empty)))
138
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139(defcustom gnus-summary-make-false-root-always nil
140 "Always make a false dummy root."
bf247b6e 141 :version "22.1"
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142 :group 'gnus-thread
143 :type 'boolean)
144
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145(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
146 "*A regexp to match subjects to be excluded from loose thread gathering.
147As loose thread gathering is done on subjects only, that means that
148there can be many false gatherings performed. By rooting out certain
149common subjects, gathering might become saner."
150 :group 'gnus-thread
151 :type 'regexp)
152
153(defcustom gnus-summary-gather-subject-limit nil
154 "*Maximum length of subject comparisons when gathering loose threads.
155Use nil to compare full subjects. Setting this variable to a low
156number will help gather threads that have been corrupted by
157newsreaders chopping off subject lines, but it might also mean that
158unrelated articles that have subject that happen to begin with the
159same few characters will be incorrectly gathered.
160
161If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
162comparing subjects."
163 :group 'gnus-thread
164 :type '(choice (const :tag "off" nil)
165 (const fuzzy)
166 (sexp :menu-tag "on" t)))
167
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168(defcustom gnus-simplify-subject-functions nil
169 "List of functions taking a string argument that simplify subjects.
170The functions are applied recursively.
171
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172Useful functions to put in this list include:
173`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
174`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
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175 :group 'gnus-thread
176 :type '(repeat function))
177
eec82323 178(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 179 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
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180 :group 'gnus-thread
181 :type '(choice (const :tag "off" nil)
182 regexp))
183
184(defcustom gnus-build-sparse-threads nil
185 "*If non-nil, fill in the gaps in threads.
186If `some', only fill in the gaps that are needed to tie loose threads
187together. If `more', fill in all leaf nodes that Gnus can find. If
188non-nil and non-`some', fill in all gaps that Gnus manages to guess."
189 :group 'gnus-thread
190 :type '(choice (const :tag "off" nil)
191 (const some)
192 (const more)
193 (sexp :menu-tag "all" t)))
194
195(defcustom gnus-summary-thread-gathering-function
196 'gnus-gather-threads-by-subject
6748645f 197 "*Function used for gathering loose threads.
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198There are two pre-defined functions: `gnus-gather-threads-by-subject',
199which only takes Subjects into consideration; and
200`gnus-gather-threads-by-references', which compared the References
201headers of the articles to find matches."
202 :group 'gnus-thread
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203 :type '(radio (function-item gnus-gather-threads-by-subject)
204 (function-item gnus-gather-threads-by-references)
205 (function :tag "other")))
eec82323 206
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207(defcustom gnus-summary-same-subject ""
208 "*String indicating that the current article has the same subject as the previous.
209This variable will only be used if the value of
210`gnus-summary-make-false-root' is `empty'."
211 :group 'gnus-summary-format
212 :type 'string)
213
214(defcustom gnus-summary-goto-unread t
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215 "*If t, many commands will go to the next unread article.
216This applies to marking commands as well as other commands that
217\"naturally\" select the next article, like, for instance, `SPC' at
218the end of an article.
219
220If nil, the marking commands do NOT go to the next unread article
2642ac8f 221\(they go to the next article instead). If `never', commands that
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222usually go to the next unread article, will go to the next article,
223whether it is read or not."
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224 :group 'gnus-summary-marks
225 :link '(custom-manual "(gnus)Setting Marks")
226 :type '(choice (const :tag "off" nil)
227 (const never)
228 (sexp :menu-tag "on" t)))
229
230(defcustom gnus-summary-default-score 0
231 "*Default article score level.
232All scores generated by the score files will be added to this score.
233If this variable is nil, scoring will be disabled."
234 :group 'gnus-score-default
235 :type '(choice (const :tag "disable")
236 integer))
237
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238(defcustom gnus-summary-default-high-score 0
239 "*Default threshold for a high scored article.
240An article will be highlighted as high scored if its score is greater
241than this score."
bf247b6e 242 :version "22.1"
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243 :group 'gnus-score-default
244 :type 'integer)
245
246(defcustom gnus-summary-default-low-score 0
247 "*Default threshold for a low scored article.
248An article will be highlighted as low scored if its score is smaller
249than this score."
bf247b6e 250 :version "22.1"
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251 :group 'gnus-score-default
252 :type 'integer)
253
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254(defcustom gnus-summary-zcore-fuzz 0
255 "*Fuzziness factor for the zcore in the summary buffer.
256Articles with scores closer than this to `gnus-summary-default-score'
257will not be marked."
258 :group 'gnus-summary-format
259 :type 'integer)
260
261(defcustom gnus-simplify-subject-fuzzy-regexp nil
262 "*Strings to be removed when doing fuzzy matches.
263This can either be a regular expression or list of regular expressions
264that will be removed from subject strings if fuzzy subject
265simplification is selected."
266 :group 'gnus-thread
267 :type '(repeat regexp))
268
269(defcustom gnus-show-threads t
270 "*If non-nil, display threads in summary mode."
271 :group 'gnus-thread
272 :type 'boolean)
273
274(defcustom gnus-thread-hide-subtree nil
275 "*If non-nil, hide all threads initially.
23f87bed 276This can be a predicate specifier which says which threads to hide.
eec82323 277If threads are hidden, you have to run the command
4a2358e9 278`gnus-summary-show-thread' by hand or select an article."
eec82323 279 :group 'gnus-thread
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280 :type '(radio (sexp :format "Non-nil\n"
281 :match (lambda (widget value)
282 (not (or (consp value) (functionp value))))
283 :value t)
284 (const nil)
ad136a7c 285 (sexp :tag "Predicate specifier")))
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286
287(defcustom gnus-thread-hide-killed t
288 "*If non-nil, hide killed threads automatically."
289 :group 'gnus-thread
290 :type 'boolean)
291
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292(defcustom gnus-thread-ignore-subject t
293 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
294If nil, articles that have different subjects from their parents will
295start separate threads."
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296 :group 'gnus-thread
297 :type 'boolean)
298
299(defcustom gnus-thread-operation-ignore-subject t
300 "*If non-nil, subjects will be ignored when doing thread commands.
301This affects commands like `gnus-summary-kill-thread' and
302`gnus-summary-lower-thread'.
303
304If this variable is nil, articles in the same thread with different
305subjects will not be included in the operation in question. If this
306variable is `fuzzy', only articles that have subjects that are fuzzily
307equal will be included."
308 :group 'gnus-thread
309 :type '(choice (const :tag "off" nil)
310 (const fuzzy)
311 (sexp :tag "on" t)))
312
313(defcustom gnus-thread-indent-level 4
314 "*Number that says how much each sub-thread should be indented."
315 :group 'gnus-thread
316 :type 'integer)
317
318(defcustom gnus-auto-extend-newsgroup t
319 "*If non-nil, extend newsgroup forward and backward when requested."
320 :group 'gnus-summary-choose
321 :type 'boolean)
322
323(defcustom gnus-auto-select-first t
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324 "If non-nil, select an article on group entry.
325An article is selected automatically when entering a group
326e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
327`gnus-summary-catchup-and-goto-next-group'.
328
329Which article is selected is controlled by the variable
330`gnus-auto-select-subject'.
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331
332If you want to prevent automatic selection of articles in some
333newsgroups, set the variable to nil in `gnus-select-group-hook'."
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334 ;; Commands include...
335 ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
336 ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
337 ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
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338 :group 'gnus-group-select
339 :type '(choice (const :tag "none" nil)
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340 (sexp :menu-tag "first" t)))
341
342(defcustom gnus-auto-select-subject 'unread
343 "*Says what subject to place under point when entering a group.
344
345This variable can either be the symbols `first' (place point on the
346first subject), `unread' (place point on the subject line of the first
347unread article), `best' (place point on the subject line of the
348higest-scored article), `unseen' (place point on the subject line of
99b5aab7 349the first unseen article), `unseen-or-unread' (place point on the subject
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350line of the first unseen article or, if all article have been seen, on the
351subject line of the first unread article), or a function to be called to
352place point on some subject line."
bf247b6e 353 :version "22.1"
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354 :group 'gnus-group-select
355 :type '(choice (const best)
356 (const unread)
357 (const first)
358 (const unseen)
359 (const unseen-or-unread)))
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360
361(defcustom gnus-auto-select-next t
362 "*If non-nil, offer to go to the next group from the end of the previous.
363If the value is t and the next newsgroup is empty, Gnus will exit
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364summary mode and go back to group mode. If the value is neither nil
365nor t, Gnus will select the following unread newsgroup. In
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366particular, if the value is the symbol `quietly', the next unread
367newsgroup will be selected without any confirmation, and if it is
368`almost-quietly', the next group will be selected without any
369confirmation if you are located on the last article in the group.
23f87bed 370Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
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371will go to the next group without confirmation."
372 :group 'gnus-summary-maneuvering
373 :type '(choice (const :tag "off" nil)
374 (const quietly)
375 (const almost-quietly)
376 (const slightly-quietly)
377 (sexp :menu-tag "on" t)))
378
379(defcustom gnus-auto-select-same nil
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380 "*If non-nil, select the next article with the same subject.
381If there are no more articles with the same subject, go to
382the first unread article."
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383 :group 'gnus-summary-maneuvering
384 :type 'boolean)
385
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386(defcustom gnus-auto-select-on-ephemeral-exit 'next-noselect
387 "What article should be selected after exiting an ephemeral group.
388Valid values include:
389
390`next'
391 Select the next article.
392`next-unread'
393 Select the next unread article.
394`next-noselect'
395 Move the cursor to the next article. This is the default.
396`next-unread-noselect'
397 Move the cursor to the next unread article.
398
399If it has any other value or there is no next (unread) article, the
400article selected before entering to the ephemeral group will appear."
330f707b 401 :version "23.1" ;; No Gnus
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402 :group 'gnus-summary-maneuvering
403 :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
404 (const next) (const next-unread)
405 (const next-noselect) (const next-unread-noselect)
406 (sexp :tag "other" :value nil)))
407
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408(defcustom gnus-auto-goto-ignores 'unfetched
409 "*Says how to handle unfetched articles when maneuvering.
410
411This variable can either be the symbols nil (maneuver to any
412article), `undownloaded' (maneuvering while unplugged ignores articles
413that have not been fetched), `always-undownloaded' (maneuvering always
414ignores articles that have not been fetched), `unfetched' (maneuvering
415ignores articles whose headers have not been fetched).
416
417NOTE: The list of unfetched articles will always be nil when plugged
418and, when unplugged, a subset of the undownloaded article list."
bf247b6e 419 :version "22.1"
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420 :group 'gnus-summary-maneuvering
421 :type '(choice (const :tag "None" nil)
422 (const :tag "Undownloaded when unplugged" undownloaded)
423 (const :tag "Undownloaded" always-undownloaded)
424 (const :tag "Unfetched" unfetched)))
425
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426(defcustom gnus-summary-check-current nil
427 "*If non-nil, consider the current article when moving.
428The \"unread\" movement commands will stay on the same line if the
429current article is unread."
430 :group 'gnus-summary-maneuvering
431 :type 'boolean)
432
01c52d31 433(defcustom gnus-auto-center-summary 2
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434 "*If non-nil, always center the current summary buffer.
435In particular, if `vertical' do only vertical recentering. If non-nil
436and non-`vertical', do both horizontal and vertical recentering."
437 :group 'gnus-summary-maneuvering
438 :type '(choice (const :tag "none" nil)
439 (const vertical)
16409b0b 440 (integer :tag "height")
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441 (sexp :menu-tag "both" t)))
442
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443(defvar gnus-auto-center-group t
444 "*If non-nil, always center the group buffer.")
445
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446(defcustom gnus-show-all-headers nil
447 "*If non-nil, don't hide any headers."
448 :group 'gnus-article-hiding
449 :group 'gnus-article-headers
450 :type 'boolean)
451
452(defcustom gnus-summary-ignore-duplicates nil
453 "*If non-nil, ignore articles with identical Message-ID headers."
454 :group 'gnus-summary
455 :type 'boolean)
6748645f 456
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457(defcustom gnus-single-article-buffer t
458 "*If non-nil, display all articles in the same buffer.
459If nil, each group will get its own article buffer."
460 :group 'gnus-article-various
461 :type 'boolean)
462
463(defcustom gnus-break-pages t
464 "*If non-nil, do page breaking on articles.
465The page delimiter is specified by the `gnus-page-delimiter'
466variable."
467 :group 'gnus-article-various
468 :type 'boolean)
469
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470(defcustom gnus-move-split-methods nil
471 "*Variable used to suggest where articles are to be moved to.
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472It uses the same syntax as the `gnus-split-methods' variable.
473However, whereas `gnus-split-methods' specifies file names as targets,
474this variable specifies group names."
eec82323 475 :group 'gnus-summary-mail
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476 :type '(repeat (choice (list :value (fun) function)
477 (cons :value ("" "") regexp (repeat string))
478 (sexp :value nil))))
eec82323 479
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480(defcustom gnus-move-group-prefix-function 'gnus-group-real-prefix
481 "Function used to compute default prefix for article move/copy/etc prompts.
482The function should take one argument, a group name, and return a
483string with the suggested prefix."
484 :group 'gnus-summary-mail
485 :type 'function)
486
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487;; FIXME: Although the custom type is `character' for the following variables,
488;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
489
23f87bed 490(defcustom gnus-unread-mark ? ;Whitespace
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491 "*Mark used for unread articles."
492 :group 'gnus-summary-marks
493 :type 'character)
494
495(defcustom gnus-ticked-mark ?!
496 "*Mark used for ticked articles."
497 :group 'gnus-summary-marks
498 :type 'character)
499
500(defcustom gnus-dormant-mark ??
501 "*Mark used for dormant articles."
502 :group 'gnus-summary-marks
503 :type 'character)
504
505(defcustom gnus-del-mark ?r
506 "*Mark used for del'd articles."
507 :group 'gnus-summary-marks
508 :type 'character)
509
510(defcustom gnus-read-mark ?R
511 "*Mark used for read articles."
512 :group 'gnus-summary-marks
513 :type 'character)
514
515(defcustom gnus-expirable-mark ?E
516 "*Mark used for expirable articles."
517 :group 'gnus-summary-marks
518 :type 'character)
519
520(defcustom gnus-killed-mark ?K
521 "*Mark used for killed articles."
522 :group 'gnus-summary-marks
523 :type 'character)
524
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525(defcustom gnus-spam-mark ?$
526 "*Mark used for spam articles."
bf247b6e 527 :version "22.1"
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528 :group 'gnus-summary-marks
529 :type 'character)
530
eec82323 531(defcustom gnus-souped-mark ?F
23f87bed 532 "*Mark used for souped articles."
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533 :group 'gnus-summary-marks
534 :type 'character)
535
536(defcustom gnus-kill-file-mark ?X
537 "*Mark used for articles killed by kill files."
538 :group 'gnus-summary-marks
539 :type 'character)
540
541(defcustom gnus-low-score-mark ?Y
542 "*Mark used for articles with a low score."
543 :group 'gnus-summary-marks
544 :type 'character)
545
546(defcustom gnus-catchup-mark ?C
547 "*Mark used for articles that are caught up."
548 :group 'gnus-summary-marks
549 :type 'character)
550
551(defcustom gnus-replied-mark ?A
552 "*Mark used for articles that have been replied to."
553 :group 'gnus-summary-marks
554 :type 'character)
555
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556(defcustom gnus-forwarded-mark ?F
557 "*Mark used for articles that have been forwarded."
bf247b6e 558 :version "22.1"
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559 :group 'gnus-summary-marks
560 :type 'character)
561
562(defcustom gnus-recent-mark ?N
563 "*Mark used for articles that are recent."
bf247b6e 564 :version "22.1"
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565 :group 'gnus-summary-marks
566 :type 'character)
567
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568(defcustom gnus-cached-mark ?*
569 "*Mark used for articles that are in the cache."
570 :group 'gnus-summary-marks
571 :type 'character)
572
573(defcustom gnus-saved-mark ?S
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574 "*Mark used for articles that have been saved."
575 :group 'gnus-summary-marks
576 :type 'character)
577
578(defcustom gnus-unseen-mark ?.
579 "*Mark used for articles that haven't been seen."
bf247b6e 580 :version "22.1"
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581 :group 'gnus-summary-marks
582 :type 'character)
583
584(defcustom gnus-no-mark ? ;Whitespace
585 "*Mark used for articles that have no other secondary mark."
bf247b6e 586 :version "22.1"
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587 :group 'gnus-summary-marks
588 :type 'character)
589
590(defcustom gnus-ancient-mark ?O
591 "*Mark used for ancient articles."
592 :group 'gnus-summary-marks
593 :type 'character)
594
595(defcustom gnus-sparse-mark ?Q
596 "*Mark used for sparsely reffed articles."
597 :group 'gnus-summary-marks
598 :type 'character)
599
600(defcustom gnus-canceled-mark ?G
601 "*Mark used for canceled articles."
602 :group 'gnus-summary-marks
603 :type 'character)
604
605(defcustom gnus-duplicate-mark ?M
606 "*Mark used for duplicate articles."
607 :group 'gnus-summary-marks
608 :type 'character)
609
23f87bed 610(defcustom gnus-undownloaded-mark ?-
6748645f 611 "*Mark used for articles that weren't downloaded."
bf247b6e 612 :version "22.1"
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613 :group 'gnus-summary-marks
614 :type 'character)
615
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616(defcustom gnus-downloaded-mark ?+
617 "*Mark used for articles that were downloaded."
618 :group 'gnus-summary-marks
619 :type 'character)
620
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621(defcustom gnus-downloadable-mark ?%
622 "*Mark used for articles that are to be downloaded."
623 :group 'gnus-summary-marks
624 :type 'character)
625
626(defcustom gnus-unsendable-mark ?=
627 "*Mark used for articles that won't be sent."
628 :group 'gnus-summary-marks
629 :type 'character)
630
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631(defcustom gnus-score-over-mark ?+
632 "*Score mark used for articles with high scores."
633 :group 'gnus-summary-marks
634 :type 'character)
635
636(defcustom gnus-score-below-mark ?-
637 "*Score mark used for articles with low scores."
638 :group 'gnus-summary-marks
639 :type 'character)
640
23f87bed 641(defcustom gnus-empty-thread-mark ? ;Whitespace
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642 "*There is no thread under the article."
643 :group 'gnus-summary-marks
644 :type 'character)
645
646(defcustom gnus-not-empty-thread-mark ?=
647 "*There is a thread under the article."
648 :group 'gnus-summary-marks
649 :type 'character)
650
651(defcustom gnus-view-pseudo-asynchronously nil
652 "*If non-nil, Gnus will view pseudo-articles asynchronously."
653 :group 'gnus-extract-view
654 :type 'boolean)
655
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656(defcustom gnus-auto-expirable-marks
657 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
658 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
659 gnus-souped-mark gnus-duplicate-mark)
660 "*The list of marks converted into expiration if a group is auto-expirable."
58e39d05 661 :version "21.1"
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662 :group 'gnus-summary
663 :type '(repeat character))
664
665(defcustom gnus-inhibit-user-auto-expire t
666 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 667 :version "21.1"
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668 :group 'gnus-summary
669 :type 'boolean)
670
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671(defcustom gnus-view-pseudos nil
672 "*If `automatic', pseudo-articles will be viewed automatically.
673If `not-confirm', pseudos will be viewed automatically, and the user
674will not be asked to confirm the command."
675 :group 'gnus-extract-view
676 :type '(choice (const :tag "off" nil)
677 (const automatic)
678 (const not-confirm)))
679
680(defcustom gnus-view-pseudos-separately t
681 "*If non-nil, one pseudo-article will be created for each file to be viewed.
682If nil, all files that use the same viewing command will be given as a
683list of parameters to that command."
684 :group 'gnus-extract-view
685 :type 'boolean)
686
687(defcustom gnus-insert-pseudo-articles t
688 "*If non-nil, insert pseudo-articles when decoding articles."
689 :group 'gnus-extract-view
690 :type 'boolean)
691
692(defcustom gnus-summary-dummy-line-format
23f87bed 693 " %(: :%) %S\n"
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694 "*The format specification for the dummy roots in the summary buffer.
695It works along the same lines as a normal formatting string,
696with some simple extensions.
697
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698%S The subject
699
700General format specifiers can also be used.
701See `(gnus)Formatting Variables'."
702 :link '(custom-manual "(gnus)Formatting Variables")
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703 :group 'gnus-threading
704 :type 'string)
705
16409b0b 706(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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707 "*The format specification for the summary mode line.
708It works along the same lines as a normal formatting string,
709with some simple extensions:
710
711%G Group name
712%p Unprefixed group name
713%A Current article number
6748645f 714%z Current article score
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715%V Gnus version
716%U Number of unread articles in the group
717%e Number of unselected articles in the group
718%Z A string with unread/unselected article counts
719%g Shortish group name
720%S Subject of the current article
721%u User-defined spec
722%s Current score file name
723%d Number of dormant articles
724%r Number of articles that have been marked as read in this session
725%E Number of articles expunged by the score files"
726 :group 'gnus-summary-format
727 :type 'string)
728
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729(defcustom gnus-list-identifiers nil
730 "Regexp that matches list identifiers to be removed from subject.
731This can also be a list of regexps."
58e39d05 732 :version "21.1"
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733 :group 'gnus-summary-format
734 :group 'gnus-article-hiding
735 :type '(choice (const :tag "none" nil)
736 (regexp :value ".*")
737 (repeat :value (".*") regexp)))
738
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739(defcustom gnus-summary-mark-below 0
740 "*Mark all articles with a score below this variable as read.
741This variable is local to each summary buffer and usually set by the
742score file."
743 :group 'gnus-score-default
744 :type 'integer)
745
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746(defun gnus-widget-reversible-match (widget value)
747 "Ignoring WIDGET, convert VALUE to internal form.
748VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
749 ;; (debug value)
750 (or (symbolp value)
751 (and (listp value)
752 (eq (length value) 2)
753 (eq (nth 0 value) 'not)
754 (symbolp (nth 1 value)))))
755
756(defun gnus-widget-reversible-to-internal (widget value)
757 "Ignoring WIDGET, convert VALUE to internal form.
758VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
759FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
760 ;; (debug value)
761 (if (atom value)
762 (list value nil)
763 (list (nth 1 value) t)))
764
765(defun gnus-widget-reversible-to-external (widget value)
766 "Ignoring WIDGET, convert VALUE to external form.
767VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
768\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
769 ;; (debug value)
770 (if (nth 1 value)
771 (list 'not (nth 0 value))
772 (nth 0 value)))
773
774(define-widget 'gnus-widget-reversible 'group
775 "A `group' that convert values."
776 :match 'gnus-widget-reversible-match
777 :value-to-internal 'gnus-widget-reversible-to-internal
778 :value-to-external 'gnus-widget-reversible-to-external)
779
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780(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
781 "*List of functions used for sorting articles in the summary buffer.
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782
783Each function takes two articles and returns non-nil if the first
784article should be sorted before the other. If you use more than one
785function, the primary sort function should be the last. You should
786probably always include `gnus-article-sort-by-number' in the list of
787sorting functions -- preferably first. Also note that sorting by date
788is often much slower than sorting by number, and the sorting order is
789very similar. (Sorting by date means sorting by the time the message
790was sent, sorting by number means sorting by arrival time.)
791
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792Each item can also be a list `(not F)' where F is a function;
793this reverses the sort order.
794
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795Ready-made functions include `gnus-article-sort-by-number',
796`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
797`gnus-article-sort-by-date', `gnus-article-sort-by-random'
798and `gnus-article-sort-by-score'.
799
800When threading is turned on, the variable `gnus-thread-sort-functions'
801controls how articles are sorted."
eec82323 802 :group 'gnus-summary-sort
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803 :type '(repeat (gnus-widget-reversible
804 (choice (function-item gnus-article-sort-by-number)
805 (function-item gnus-article-sort-by-author)
806 (function-item gnus-article-sort-by-subject)
807 (function-item gnus-article-sort-by-date)
808 (function-item gnus-article-sort-by-score)
809 (function-item gnus-article-sort-by-random)
810 (function :tag "other"))
811 (boolean :tag "Reverse order"))))
812
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813
814(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
815 "*List of functions used for sorting threads in the summary buffer.
816By default, threads are sorted by article number.
817
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818Each function takes two threads and returns non-nil if the first
819thread should be sorted before the other. If you use more than one
820function, the primary sort function should be the last. You should
821probably always include `gnus-thread-sort-by-number' in the list of
822sorting functions -- preferably first. Also note that sorting by date
823is often much slower than sorting by number, and the sorting order is
824very similar. (Sorting by date means sorting by the time the message
825was sent, sorting by number means sorting by arrival time.)
eec82323 826
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827Each list item can also be a list `(not F)' where F is a
828function; this specifies reversed sort order.
829
eec82323 830Ready-made functions include `gnus-thread-sort-by-number',
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831`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
832`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
833`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
834`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
835and `gnus-thread-sort-by-total-score' (see
836`gnus-thread-score-function').
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837
838When threading is turned off, the variable
839`gnus-article-sort-functions' controls how articles are sorted."
eec82323 840 :group 'gnus-summary-sort
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841 :type '(repeat
842 (gnus-widget-reversible
843 (choice (function-item gnus-thread-sort-by-number)
844 (function-item gnus-thread-sort-by-author)
845 (function-item gnus-thread-sort-by-recipient)
846 (function-item gnus-thread-sort-by-subject)
847 (function-item gnus-thread-sort-by-date)
848 (function-item gnus-thread-sort-by-score)
849 (function-item gnus-thread-sort-by-most-recent-number)
850 (function-item gnus-thread-sort-by-most-recent-date)
851 (function-item gnus-thread-sort-by-random)
852 (function-item gnus-thread-sort-by-total-score)
853 (function :tag "other"))
854 (boolean :tag "Reverse order"))))
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855
856(defcustom gnus-thread-score-function '+
857 "*Function used for calculating the total score of a thread.
858
859The function is called with the scores of the article and each
860subthread and should then return the score of the thread.
861
862Some functions you can use are `+', `max', or `min'."
863 :group 'gnus-summary-sort
864 :type 'function)
865
866(defcustom gnus-summary-expunge-below nil
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867 "All articles that have a score less than this variable will be expunged.
868This variable is local to the summary buffers."
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869 :group 'gnus-score-default
870 :type '(choice (const :tag "off" nil)
871 integer))
872
873(defcustom gnus-thread-expunge-below nil
874 "All threads that have a total score less than this variable will be expunged.
875See `gnus-thread-score-function' for en explanation of what a
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876\"thread score\" is.
877
878This variable is local to the summary buffers."
16409b0b 879 :group 'gnus-threading
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880 :group 'gnus-score-default
881 :type '(choice (const :tag "off" nil)
882 integer))
883
884(defcustom gnus-summary-mode-hook nil
885 "*A hook for Gnus summary mode.
886This hook is run before any variables are set in the summary buffer."
23f87bed 887 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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888 :group 'gnus-summary-various
889 :type 'hook)
890
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891;; Extracted from gnus-xmas-redefine in order to preserve user settings
892(when (featurep 'xemacs)
893 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
894 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
895 (add-hook 'gnus-summary-mode-hook
896 'gnus-xmas-switch-horizontal-scrollbar-off))
897
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898(defcustom gnus-summary-menu-hook nil
899 "*Hook run after the creation of the summary mode menu."
900 :group 'gnus-summary-visual
901 :type 'hook)
902
903(defcustom gnus-summary-exit-hook nil
904 "*A hook called on exit from the summary buffer.
905It will be called with point in the group buffer."
906 :group 'gnus-summary-exit
907 :type 'hook)
908
909(defcustom gnus-summary-prepare-hook nil
910 "*A hook called after the summary buffer has been generated.
911If you want to modify the summary buffer, you can use this hook."
912 :group 'gnus-summary-various
913 :type 'hook)
914
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915(defcustom gnus-summary-prepared-hook nil
916 "*A hook called as the last thing after the summary buffer has been generated."
917 :group 'gnus-summary-various
918 :type 'hook)
919
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920(defcustom gnus-summary-generate-hook nil
921 "*A hook run just before generating the summary buffer.
922This hook is commonly used to customize threading variables and the
923like."
924 :group 'gnus-summary-various
925 :type 'hook)
926
927(defcustom gnus-select-group-hook nil
928 "*A hook called when a newsgroup is selected.
929
930If you'd like to simplify subjects like the
931`gnus-summary-next-same-subject' command does, you can use the
932following hook:
933
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934 (add-hook gnus-select-group-hook
935 (lambda ()
936 (mapcar (lambda (header)
937 (mail-header-set-subject
938 header
939 (gnus-simplify-subject
940 (mail-header-subject header) 're-only)))
941 gnus-newsgroup-headers)))"
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942 :group 'gnus-group-select
943 :type 'hook)
944
945(defcustom gnus-select-article-hook nil
946 "*A hook called when an article is selected."
947 :group 'gnus-summary-choose
23f87bed 948 :options '(gnus-agent-fetch-selected-article)
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949 :type 'hook)
950
951(defcustom gnus-visual-mark-article-hook
952 (list 'gnus-highlight-selected-summary)
953 "*Hook run after selecting an article in the summary buffer.
954It is meant to be used for highlighting the article in some way. It
955is not run if `gnus-visual' is nil."
956 :group 'gnus-summary-visual
957 :type 'hook)
958
16409b0b 959(defcustom gnus-parse-headers-hook nil
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960 "*A hook called before parsing the headers."
961 :group 'gnus-various
962 :type 'hook)
963
964(defcustom gnus-exit-group-hook nil
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965 "*A hook called when exiting summary mode.
966This hook is not called from the non-updating exit commands like `Q'."
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967 :group 'gnus-various
968 :type 'hook)
969
970(defcustom gnus-summary-update-hook
971 (list 'gnus-summary-highlight-line)
972 "*A hook called when a summary line is changed.
973The hook will not be called if `gnus-visual' is nil.
974
975The default function `gnus-summary-highlight-line' will
976highlight the line according to the `gnus-summary-highlight'
977variable."
978 :group 'gnus-summary-visual
979 :type 'hook)
980
981(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
982 "*A hook called when an article is selected for the first time.
983The hook is intended to mark an article as read (or unread)
984automatically when it is selected."
985 :group 'gnus-summary-choose
986 :type 'hook)
987
988(defcustom gnus-group-no-more-groups-hook nil
989 "*A hook run when returning to group mode having no more (unread) groups."
990 :group 'gnus-group-select
991 :type 'hook)
992
993(defcustom gnus-ps-print-hook nil
994 "*A hook run before ps-printing something from Gnus."
995 :group 'gnus-summary
996 :type 'hook)
997
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998(defcustom gnus-summary-article-move-hook nil
999 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1000 :version "22.1"
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1001 :group 'gnus-summary
1002 :type 'hook)
1003
1004(defcustom gnus-summary-article-delete-hook nil
1005 "*A hook called after an article is deleted."
bf247b6e 1006 :version "22.1"
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1007 :group 'gnus-summary
1008 :type 'hook)
1009
1010(defcustom gnus-summary-article-expire-hook nil
1011 "*A hook called after an article is expired."
bf247b6e 1012 :version "22.1"
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1013 :group 'gnus-summary
1014 :type 'hook)
1015
1016(defcustom gnus-summary-display-arrow
1017 (and (fboundp 'display-graphic-p)
1018 (display-graphic-p))
1019 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1020 :version "22.1"
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1021 :group 'gnus-summary
1022 :type 'boolean)
1023
0f49874b 1024(defcustom gnus-summary-selected-face 'gnus-summary-selected
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1025 "Face used for highlighting the current article in the summary buffer."
1026 :group 'gnus-summary-visual
1027 :type 'face)
1028
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1029(defvar gnus-tmp-downloaded nil)
1030
eec82323 1031(defcustom gnus-summary-highlight
23f87bed 1032 '(((eq mark gnus-canceled-mark)
0f49874b 1033 . gnus-summary-cancelled)
23f87bed 1034 ((and uncached (> score default-high))
0f49874b 1035 . gnus-summary-high-undownloaded)
23f87bed 1036 ((and uncached (< score default-low))
0f49874b 1037 . gnus-summary-low-undownloaded)
23f87bed 1038 (uncached
0f49874b 1039 . gnus-summary-normal-undownloaded)
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1040 ((and (> score default-high)
1041 (or (eq mark gnus-dormant-mark)
1042 (eq mark gnus-ticked-mark)))
0f49874b 1043 . gnus-summary-high-ticked)
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1044 ((and (< score default-low)
1045 (or (eq mark gnus-dormant-mark)
1046 (eq mark gnus-ticked-mark)))
0f49874b 1047 . gnus-summary-low-ticked)
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1048 ((or (eq mark gnus-dormant-mark)
1049 (eq mark gnus-ticked-mark))
0f49874b 1050 . gnus-summary-normal-ticked)
23f87bed 1051 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1052 . gnus-summary-high-ancient)
23f87bed 1053 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1054 . gnus-summary-low-ancient)
23f87bed 1055 ((eq mark gnus-ancient-mark)
0f49874b 1056 . gnus-summary-normal-ancient)
23f87bed 1057 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1058 . gnus-summary-high-unread)
23f87bed 1059 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1060 . gnus-summary-low-unread)
23f87bed 1061 ((eq mark gnus-unread-mark)
0f49874b 1062 . gnus-summary-normal-unread)
23f87bed 1063 ((> score default-high)
0f49874b 1064 . gnus-summary-high-read)
23f87bed 1065 ((< score default-low)
0f49874b 1066 . gnus-summary-low-read)
eec82323 1067 (t
0f49874b 1068 . gnus-summary-normal-read))
6748645f 1069 "*Controls the highlighting of summary buffer lines.
eec82323 1070
107cf8ec 1071A list of (FORM . FACE) pairs. When deciding how a particular
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1072summary line should be displayed, each form is evaluated. The content
1073of the face field after the first true form is used. You can change
1074how those summary lines are displayed, by editing the face field.
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1075
1076You can use the following variables in the FORM field.
1077
107cf8ec 1078score: The article's score.
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1079default: The default article score.
1080default-high: The default score for high scored articles.
1081default-low: The default score for low scored articles.
1082below: The score below which articles are automatically marked as read.
1083mark: The article's mark.
1084uncached: Non-nil if the article is uncached."
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1085 :group 'gnus-summary-visual
1086 :type '(repeat (cons (sexp :tag "Form" nil)
1087 face)))
c12ecb0a 1088(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1089
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1090(defcustom gnus-alter-header-function nil
1091 "Function called to allow alteration of article header structures.
1092The function is called with one parameter, the article header vector,
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1093which it may alter in any way."
1094 :type '(choice (const :tag "None" nil)
1095 function)
1096 :group 'gnus-summary)
eec82323 1097
16409b0b 1098(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
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1099 "Function used to decode a string with encoded words.")
1100
1101(defvar gnus-decode-encoded-address-function
1102 'mail-decode-encoded-address-string
1103 "Function used to decode addresses with encoded words.")
16409b0b 1104
23f87bed 1105(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1106 "*Extra headers to parse."
58e39d05 1107 :version "21.1"
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1108 :group 'gnus-summary
1109 :type '(repeat symbol))
1110
1111(defcustom gnus-ignored-from-addresses
343d6628 1112 (and user-mail-address
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1113 (not (string= user-mail-address ""))
1114 (regexp-quote user-mail-address))
01c52d31
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1115 "*From headers that may be suppressed in favor of To headers.
1116This can be a regexp or a list of regexps."
58e39d05 1117 :version "21.1"
16409b0b 1118 :group 'gnus-summary
01c52d31
MB
1119 :type '(choice regexp
1120 (repeat :tag "Regexp List" regexp)))
1121
1122(defsubst gnus-ignored-from-addresses ()
1123 (gmm-regexp-concat gnus-ignored-from-addresses))
1124
1125(defcustom gnus-summary-to-prefix "-> "
1126 "*String prefixed to the To field in the summary line when
1127using `gnus-ignored-from-addresses'."
1128 :version "22.1"
1129 :group 'gnus-summary
1130 :type 'string)
1131
1132(defcustom gnus-summary-newsgroup-prefix "=> "
1133 "*String prefixed to the Newsgroup field in the summary
1134line when using `gnus-ignored-from-addresses'."
1135 :version "22.1"
1136 :group 'gnus-summary
1137 :type 'string)
16409b0b 1138
16409b0b
GM
1139(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1140 "List of charsets that should be ignored.
1141When these charsets are used in the \"charset\" parameter, the
1142default charset will be used instead."
58e39d05 1143 :version "21.1"
16409b0b
GM
1144 :type '(repeat symbol)
1145 :group 'gnus-charset)
1146
4b70e299
MB
1147(defcustom gnus-newsgroup-maximum-articles nil
1148 "The maximum number of articles a newsgroup.
1149If this is a number, old articles in a newsgroup exceeding this number
1150are silently ignored. If it is nil, no article is ignored. Note that
1151setting this variable to a number might prevent you from reading very
1152old articles."
1153 :group 'gnus-group-select
1154 :version "22.2"
1155 :type '(choice (const :tag "No limit" nil)
1156 integer))
1157
23f87bed
MB
1158(gnus-define-group-parameter
1159 ignored-charsets
1160 :type list
1161 :function-document
1162 "Return the ignored charsets of GROUP."
1163 :variable gnus-group-ignored-charsets-alist
1164 :variable-default
1165 '(("alt\\.chinese\\.text" iso-8859-1))
1166 :variable-document
1167 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1168When these charsets are used in the \"charset\" parameter, the
1169default charset will be used instead."
23f87bed
MB
1170 :variable-group gnus-charset
1171 :variable-type '(repeat (cons (regexp :tag "Group")
1172 (repeat symbol)))
1173 :parameter-type '(choice :tag "Ignored charsets"
1174 :value nil
1175 (repeat (symbol)))
1176 :parameter-document "\
1177List of charsets that should be ignored.
1178
1179When these charsets are used in the \"charset\" parameter, the
1180default charset will be used instead.")
16409b0b
GM
1181
1182(defcustom gnus-group-highlight-words-alist nil
1183 "Alist of group regexps and highlight regexps.
1184This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1185 :version "21.1"
16409b0b
GM
1186 :type '(repeat (cons (regexp :tag "Group")
1187 (repeat (list (regexp :tag "Highlight regexp")
1188 (number :tag "Group for entire word" 0)
1189 (number :tag "Group for displayed part" 0)
1190 (symbol :tag "Face"
1191 gnus-emphasis-highlight-words)))))
1192 :group 'gnus-summary-visual)
1193
1194(defcustom gnus-summary-show-article-charset-alist
1195 nil
1196 "Alist of number and charset.
1197The article will be shown with the charset corresponding to the
1198numbered argument.
1199For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1200 :version "21.1"
16409b0b
GM
1201 :type '(repeat (cons (number :tag "Argument" 1)
1202 (symbol :tag "Charset")))
1203 :group 'gnus-charset)
1204
1205(defcustom gnus-preserve-marks t
1206 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1207 :version "21.1"
16409b0b
GM
1208 :type 'boolean
1209 :group 'gnus-summary-marks)
1210
3a23a519
MB
1211(defcustom gnus-propagate-marks t
1212 "If non-nil, do not propagate marks to the backends."
f8a29505 1213 :version "23.1" ;; No Gnus
3a23a519
MB
1214 :type 'boolean
1215 :group 'gnus-summary-marks)
1216
16409b0b
GM
1217(defcustom gnus-alter-articles-to-read-function nil
1218 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1219 :type '(choice (const nil) function)
16409b0b
GM
1220 :group 'gnus-summary)
1221
1222(defcustom gnus-orphan-score nil
1223 "*All orphans get this score added. Set in the score file."
1224 :group 'gnus-score-default
1225 :type '(choice (const nil)
1226 integer))
1227
8b93df01 1228(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1229 "*A regexp to match MIME parts when saving multiple parts of a
1230message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1231This regexp will be used by default when prompting the user for which
1232type of files to save."
8b93df01
DL
1233 :group 'gnus-summary
1234 :type 'regexp)
1235
23f87bed
MB
1236(defcustom gnus-read-all-available-headers nil
1237 "Whether Gnus should parse all headers made available to it.
1238This is mostly relevant for slow back ends where the user may
1239wish to widen the summary buffer to include all headers
1240that were fetched. Say, for nnultimate groups."
bf247b6e 1241 :version "22.1"
23f87bed
MB
1242 :group 'gnus-summary
1243 :type '(choice boolean regexp))
1244
89167438
MB
1245(defcustom gnus-summary-pipe-output-default-command nil
1246 "Command (and optional arguments) used to pipe article to subprocess.
1247This will be used as the default command if it is non-nil. The value
1248will be updated if you modify it when executing the command
1249`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1250 :version "23.1" ;; No Gnus
1251 :group 'gnus-summary
1252 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1253
23f87bed 1254(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1255 "Command (and optional arguments) used to run Muttprint.
1256The value will be updated if you modify it when executing the command
1257`gnus-summary-muttprint'."
bf247b6e 1258 :version "22.1"
23f87bed
MB
1259 :group 'gnus-summary
1260 :type 'string)
1261
01c52d31 1262(defcustom gnus-article-loose-mime t
23f87bed
MB
1263 "If non-nil, don't require MIME-Version header.
1264Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1265supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1266If non-nil (the default), Gnus will treat some articles as MIME
1267even if the MIME-Version header is missing."
bf247b6e 1268 :version "22.1"
23f87bed
MB
1269 :type 'boolean
1270 :group 'gnus-article-mime)
1271
1272(defcustom gnus-article-emulate-mime t
1273 "If non-nil, use MIME emulation for uuencode and the like.
1274This means that Gnus will search message bodies for text that look
1275like uuencoded bits, yEncoded bits, and so on, and present that using
1276the normal Gnus MIME machinery."
bf247b6e 1277 :version "22.1"
23f87bed
MB
1278 :type 'boolean
1279 :group 'gnus-article-mime)
8b93df01 1280
eec82323
LMI
1281;;; Internal variables
1282
23f87bed 1283(defvar gnus-summary-display-cache nil)
16409b0b
GM
1284(defvar gnus-article-mime-handles nil)
1285(defvar gnus-article-decoded-p nil)
23f87bed
MB
1286(defvar gnus-article-charset nil)
1287(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1288(defvar gnus-scores-exclude-files nil)
1289(defvar gnus-page-broken nil)
1290
1291(defvar gnus-original-article nil)
1292(defvar gnus-article-internal-prepare-hook nil)
1293(defvar gnus-newsgroup-process-stack nil)
1294
1295(defvar gnus-thread-indent-array nil)
1296(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1297(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1298 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1299
8b93df01 1300(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1301(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1302
eec82323
LMI
1303;; Avoid highlighting in kill files.
1304(defvar gnus-summary-inhibit-highlight nil)
1305(defvar gnus-newsgroup-selected-overlay nil)
1306(defvar gnus-inhibit-limiting nil)
1307(defvar gnus-newsgroup-adaptive-score-file nil)
1308(defvar gnus-current-score-file nil)
1309(defvar gnus-current-move-group nil)
1310(defvar gnus-current-copy-group nil)
1311(defvar gnus-current-crosspost-group nil)
23f87bed 1312(defvar gnus-newsgroup-display nil)
eec82323
LMI
1313
1314(defvar gnus-newsgroup-dependencies nil)
1315(defvar gnus-newsgroup-adaptive nil)
1316(defvar gnus-summary-display-article-function nil)
1317(defvar gnus-summary-highlight-line-function nil
1318 "Function called after highlighting a summary line.")
1319
1320(defvar gnus-summary-line-format-alist
1321 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1322 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1323 (?s gnus-tmp-subject-or-nil ?s)
1324 (?n gnus-tmp-name ?s)
1325 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1326 ?s)
1327 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1328 gnus-tmp-from) ?s)
1329 (?F gnus-tmp-from ?s)
1330 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1331 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1332 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1333 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1334 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1335 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1336 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1337 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1338 (?L gnus-tmp-lines ?s)
1339 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1340 (?I gnus-tmp-indentation ?s)
1341 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1342 (?R gnus-tmp-replied ?c)
1343 (?\[ gnus-tmp-opening-bracket ?c)
1344 (?\] gnus-tmp-closing-bracket ?c)
1345 (?\> (make-string gnus-tmp-level ? ) ?s)
1346 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1347 (?i gnus-tmp-score ?d)
1348 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1349 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1350 (?U gnus-tmp-unread ?c)
23f87bed
MB
1351 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1352 ?s)
eec82323
LMI
1353 (?t (gnus-summary-number-of-articles-in-thread
1354 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1355 ?d)
1356 (?e (gnus-summary-number-of-articles-in-thread
1357 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1358 ?c)
1359 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1360 (?P (gnus-pick-line-number) ?d)
1361 (?B gnus-tmp-thread-tree-header-string ?s)
1362 (user-date (gnus-user-date
1363 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1364 "An alist of format specifications that can appear in summary lines.
1365These are paired with what variables they correspond with, along with
1366the type of the variable (string, integer, character, etc).")
eec82323
LMI
1367
1368(defvar gnus-summary-dummy-line-format-alist
1369 `((?S gnus-tmp-subject ?s)
1370 (?N gnus-tmp-number ?d)
1371 (?u gnus-tmp-user-defined ?s)))
1372
1373(defvar gnus-summary-mode-line-format-alist
1374 `((?G gnus-tmp-group-name ?s)
1375 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1376 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1377 (?A gnus-tmp-article-number ?d)
1378 (?Z gnus-tmp-unread-and-unselected ?s)
1379 (?V gnus-version ?s)
1380 (?U gnus-tmp-unread-and-unticked ?d)
1381 (?S gnus-tmp-subject ?s)
1382 (?e gnus-tmp-unselected ?d)
1383 (?u gnus-tmp-user-defined ?s)
1384 (?d (length gnus-newsgroup-dormant) ?d)
1385 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1386 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1387 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1388 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1389 (?E gnus-newsgroup-expunged-tally ?d)
1390 (?s (gnus-current-score-file-nondirectory) ?s)))
1391
c1717fbd
GM
1392;; This is here rather than in gnus-art for compilation reasons.
1393(defvar gnus-article-mode-line-format-alist
1394 (nconc '((?w (gnus-article-wash-status) ?s)
1395 (?m (gnus-article-mime-part-status) ?s))
1396 gnus-summary-mode-line-format-alist))
1397
eec82323
LMI
1398(defvar gnus-last-search-regexp nil
1399 "Default regexp for article search command.")
1400
1401(defvar gnus-last-shell-command nil
1402 "Default shell command on article.")
1403
23f87bed
MB
1404(defvar gnus-newsgroup-agentized nil
1405 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1406(defvar gnus-newsgroup-begin nil)
1407(defvar gnus-newsgroup-end nil)
1408(defvar gnus-newsgroup-last-rmail nil)
1409(defvar gnus-newsgroup-last-mail nil)
1410(defvar gnus-newsgroup-last-folder nil)
1411(defvar gnus-newsgroup-last-file nil)
26c9afc3 1412(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1413(defvar gnus-newsgroup-auto-expire nil)
1414(defvar gnus-newsgroup-active nil)
1415
1416(defvar gnus-newsgroup-data nil)
1417(defvar gnus-newsgroup-data-reverse nil)
1418(defvar gnus-newsgroup-limit nil)
1419(defvar gnus-newsgroup-limits nil)
23f87bed 1420(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1421
1422(defvar gnus-newsgroup-unreads nil
23f87bed 1423 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1424
1425(defvar gnus-newsgroup-unselected nil
23f87bed 1426 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1427
1428(defvar gnus-newsgroup-reads nil
1429 "Alist of read articles and article marks in the current newsgroup.")
1430
1431(defvar gnus-newsgroup-expunged-tally nil)
1432
1433(defvar gnus-newsgroup-marked nil
23f87bed
MB
1434 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1435
1436(defvar gnus-newsgroup-spam-marked nil
1437 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1438
1439(defvar gnus-newsgroup-killed nil
1440 "List of ranges of articles that have been through the scoring process.")
1441
1442(defvar gnus-newsgroup-cached nil
23f87bed 1443 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1444
1445(defvar gnus-newsgroup-saved nil
1446 "List of articles that have been saved.")
1447
1448(defvar gnus-newsgroup-kill-headers nil)
1449
1450(defvar gnus-newsgroup-replied nil
1451 "List of articles that have been replied to in the current newsgroup.")
1452
23f87bed
MB
1453(defvar gnus-newsgroup-forwarded nil
1454 "List of articles that have been forwarded in the current newsgroup.")
1455
1456(defvar gnus-newsgroup-recent nil
1457 "List of articles that have are recent in the current newsgroup.")
1458
eec82323 1459(defvar gnus-newsgroup-expirable nil
23f87bed 1460 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1461
1462(defvar gnus-newsgroup-processable nil
1463 "List of articles in the current newsgroup that can be processed.")
1464
6748645f 1465(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1466 "Sorted list of articles in the current newsgroup that can be processed.")
1467
1468(defvar gnus-newsgroup-unfetched nil
1469 "Sorted list of articles in the current newsgroup whose headers have
1470not been fetched into the agent.
1471
1472This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1473
1474(defvar gnus-newsgroup-undownloaded nil
23f87bed 1475 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1476
1477(defvar gnus-newsgroup-unsendable nil
1478 "List of articles in the current newsgroup that won't be sent.")
1479
eec82323
LMI
1480(defvar gnus-newsgroup-bookmarks nil
1481 "List of articles in the current newsgroup that have bookmarks.")
1482
1483(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1484 "Sorted list of dormant articles in the current newsgroup.")
1485
1486(defvar gnus-newsgroup-unseen nil
1487 "List of unseen articles in the current newsgroup.")
1488
1489(defvar gnus-newsgroup-seen nil
1490 "Range of seen articles in the current newsgroup.")
1491
1492(defvar gnus-newsgroup-articles nil
1493 "List of articles in the current newsgroup.")
eec82323
LMI
1494
1495(defvar gnus-newsgroup-scored nil
1496 "List of scored articles in the current newsgroup.")
1497
1498(defvar gnus-newsgroup-headers nil
1499 "List of article headers in the current newsgroup.")
1500
1501(defvar gnus-newsgroup-threads nil)
1502
1503(defvar gnus-newsgroup-prepared nil
1504 "Whether the current group has been prepared properly.")
1505
1506(defvar gnus-newsgroup-ancient nil
1507 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1508
1509(defvar gnus-newsgroup-sparse nil)
1510
1511(defvar gnus-current-article nil)
1512(defvar gnus-article-current nil)
1513(defvar gnus-current-headers nil)
1514(defvar gnus-have-all-headers nil)
1515(defvar gnus-last-article nil)
1516(defvar gnus-newsgroup-history nil)
16409b0b
GM
1517(defvar gnus-newsgroup-charset nil)
1518(defvar gnus-newsgroup-ephemeral-charset nil)
1519(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1520
23f87bed
MB
1521(defvar gnus-article-before-search nil)
1522
1523(defvar gnus-summary-local-variables
eec82323
LMI
1524 '(gnus-newsgroup-name
1525 gnus-newsgroup-begin gnus-newsgroup-end
1526 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1527 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1528 gnus-newsgroup-last-directory
eec82323
LMI
1529 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1530 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1531 gnus-newsgroup-spam-marked
eec82323 1532 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1533 gnus-newsgroup-replied gnus-newsgroup-forwarded
1534 gnus-newsgroup-recent
1535 gnus-newsgroup-expirable
eec82323 1536 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1537 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1538 gnus-newsgroup-unfetched
1539 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1540 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1541 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1542 gnus-newsgroup-headers gnus-newsgroup-threads
1543 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1544 gnus-current-article gnus-current-headers gnus-have-all-headers
1545 gnus-last-article gnus-article-internal-prepare-hook
1546 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1547 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1548 gnus-thread-expunge-below
16409b0b
GM
1549 gnus-score-alist gnus-current-score-file
1550 (gnus-summary-expunge-below . global)
eec82323 1551 (gnus-summary-mark-below . global)
16409b0b 1552 (gnus-orphan-score . global)
eec82323
LMI
1553 gnus-newsgroup-active gnus-scores-exclude-files
1554 gnus-newsgroup-history gnus-newsgroup-ancient
1555 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1556 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1557 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1558 (gnus-newsgroup-expunged-tally . 0)
1559 gnus-cache-removable-articles gnus-newsgroup-cached
1560 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1561 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1562 gnus-newsgroup-charset gnus-newsgroup-display
1563 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1564 "Variables that are buffer-local to the summary buffers.")
1565
23f87bed
MB
1566(defvar gnus-newsgroup-variables nil
1567 "A list of variables that have separate values in different newsgroups.
1568A list of newsgroup (summary buffer) local variables, or cons of
1569variables and their default expressions to be evalled (when the default
1570values are not nil), that should be made global while the summary buffer
1571is active.
1572
1573Note: The default expressions will be evaluated (using function `eval')
1574before assignment to the local variable rather than just assigned to it.
1575If the default expression is the symbol `global', that symbol will not
1576be evaluated but the global value of the local variable will be used
1577instead.
1578
1579These variables can be used to set variables in the group parameters
1580while still allowing them to affect operations done in other buffers.
1581For example:
1582
1583\(setq gnus-newsgroup-variables
1584 '(message-use-followup-to
1585 (gnus-visible-headers .
1586 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1587")
1588
23f87bed
MB
1589(eval-when-compile
1590 ;; Bind features so that require will believe that gnus-sum has
1591 ;; already been loaded (avoids infinite recursion)
1592 (let ((features (cons 'gnus-sum features)))
23f87bed 1593 (require 'gnus-art)))
eec82323 1594
16409b0b
GM
1595;; MIME stuff.
1596
1597(defvar gnus-decode-encoded-word-methods
1598 '(mail-decode-encoded-word-string)
1599 "List of methods used to decode encoded words.
1600
23f87bed
MB
1601This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1602is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1603\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1604whose names match REGEXP.
1605
1606For example:
23f87bed 1607\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1608 mail-decode-encoded-word-string
1609 (\"chinese\" . rfc1843-decode-string))")
1610
1611(defvar gnus-decode-encoded-word-methods-cache nil)
1612
1613(defun gnus-multi-decode-encoded-word-string (string)
1614 "Apply the functions from `gnus-encoded-word-methods' that match."
1615 (unless (and gnus-decode-encoded-word-methods-cache
1616 (eq gnus-newsgroup-name
1617 (car gnus-decode-encoded-word-methods-cache)))
1618 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1619 (dolist (method gnus-decode-encoded-word-methods)
1620 (if (symbolp method)
1621 (nconc gnus-decode-encoded-word-methods-cache (list method))
1622 (if (and gnus-newsgroup-name
1623 (string-match (car method) gnus-newsgroup-name))
1624 (nconc gnus-decode-encoded-word-methods-cache
1625 (list (cdr method)))))))
1626 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1627 (setq string (funcall method string))))
16409b0b 1628
eec82323
LMI
1629;; Subject simplification.
1630
6748645f 1631(defun gnus-simplify-whitespace (str)
16409b0b 1632 "Remove excessive whitespace from STR."
23f87bed
MB
1633 ;; Multiple spaces.
1634 (while (string-match "[ \t][ \t]+" str)
1635 (setq str (concat (substring str 0 (match-beginning 0))
1636 " "
1637 (substring str (match-end 0)))))
1638 ;; Leading spaces.
1639 (when (string-match "^[ \t]+" str)
1640 (setq str (substring str (match-end 0))))
1641 ;; Trailing spaces.
1642 (when (string-match "[ \t]+$" str)
1643 (setq str (substring str 0 (match-beginning 0))))
1644 str)
1645
1646(defun gnus-simplify-all-whitespace (str)
1647 "Remove all whitespace from STR."
1648 (while (string-match "[ \t\n]+" str)
1649 (setq str (replace-match "" nil nil str)))
1650 str)
6748645f 1651
eec82323
LMI
1652(defsubst gnus-simplify-subject-re (subject)
1653 "Remove \"Re:\" from subject lines."
23f87bed 1654 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1655 (substring subject (match-end 0))
1656 subject))
1657
1658(defun gnus-simplify-subject (subject &optional re-only)
1659 "Remove `Re:' and words in parentheses.
1660If RE-ONLY is non-nil, strip leading `Re:'s only."
1661 (let ((case-fold-search t)) ;Ignore case.
1662 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1663 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1664 (setq subject (substring subject (match-end 0))))
1665 ;; Remove uninteresting prefixes.
1666 (when (and (not re-only)
1667 gnus-simplify-ignored-prefixes
1668 (string-match gnus-simplify-ignored-prefixes subject))
1669 (setq subject (substring subject (match-end 0))))
1670 ;; Remove words in parentheses from end.
1671 (unless re-only
1672 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1673 (setq subject (substring subject 0 (match-beginning 0)))))
1674 ;; Return subject string.
1675 subject))
1676
1677;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1678;; all whitespace.
1679(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1680 (goto-char (point-min))
1681 (while (re-search-forward regexp nil t)
16409b0b 1682 (replace-match (or newtext ""))))
eec82323
LMI
1683
1684(defun gnus-simplify-buffer-fuzzy ()
1685 "Simplify string in the buffer fuzzily.
1686The string in the accessible portion of the current buffer is simplified.
1687It is assumed to be a single-line subject.
1688Whitespace is generally cleaned up, and miscellaneous leading/trailing
1689matter is removed. Additional things can be deleted by setting
16409b0b 1690`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1691 (let ((case-fold-search t)
1692 (modified-tick))
1693 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1694
1695 (while (not (eq modified-tick (buffer-modified-tick)))
1696 (setq modified-tick (buffer-modified-tick))
1697 (cond
1698 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
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1699 (mapc 'gnus-simplify-buffer-fuzzy-step
1700 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1701 (gnus-simplify-subject-fuzzy-regexp
1702 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1703 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1704 (gnus-simplify-buffer-fuzzy-step
1705 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1706 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1707
1708 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1709 (gnus-simplify-buffer-fuzzy-step " +" " ")
1710 (gnus-simplify-buffer-fuzzy-step " $")
1711 (gnus-simplify-buffer-fuzzy-step "^ +")))
1712
1713(defun gnus-simplify-subject-fuzzy (subject)
1714 "Simplify a subject string fuzzily.
6748645f 1715See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1716 (save-excursion
1717 (gnus-set-work-buffer)
1718 (let ((case-fold-search t))
6748645f
LMI
1719 ;; Remove uninteresting prefixes.
1720 (when (and gnus-simplify-ignored-prefixes
1721 (string-match gnus-simplify-ignored-prefixes subject))
1722 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1723 (insert subject)
1724 (inline (gnus-simplify-buffer-fuzzy))
1725 (buffer-string))))
1726
1727(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1728 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1729 (cond
6748645f
LMI
1730 (gnus-simplify-subject-functions
1731 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1732 ((null gnus-summary-gather-subject-limit)
1733 (gnus-simplify-subject-re subject))
1734 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1735 (gnus-simplify-subject-fuzzy subject))
1736 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1737 (truncate-string-to-width (gnus-simplify-subject-re subject)
1738 gnus-summary-gather-subject-limit))
eec82323
LMI
1739 (t
1740 subject)))
1741
1742(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1743 "Check whether two subjects are equal.
23f87bed 1744If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1745simplified."
eec82323
LMI
1746 (cond
1747 ((null simple-first)
1748 (equal (gnus-simplify-subject-fully s1)
1749 (gnus-simplify-subject-fully s2)))
1750 (t
1751 (equal s1
1752 (gnus-simplify-subject-fully s2)))))
1753
1754(defun gnus-summary-bubble-group ()
1755 "Increase the score of the current group.
1756This is a handy function to add to `gnus-summary-exit-hook' to
1757increase the score of each group you read."
1758 (gnus-group-add-score gnus-newsgroup-name))
1759
1760\f
1761;;;
1762;;; Gnus summary mode
1763;;;
1764
1765(put 'gnus-summary-mode 'mode-class 'special)
1766
1653df0f
SZ
1767(defvar gnus-article-commands-menu)
1768
23f87bed
MB
1769;; Non-orthogonal keys
1770
1771(gnus-define-keys gnus-summary-mode-map
1772 " " gnus-summary-next-page
1773 "\177" gnus-summary-prev-page
1774 [delete] gnus-summary-prev-page
1775 [backspace] gnus-summary-prev-page
1776 "\r" gnus-summary-scroll-up
1777 "\M-\r" gnus-summary-scroll-down
1778 "n" gnus-summary-next-unread-article
1779 "p" gnus-summary-prev-unread-article
1780 "N" gnus-summary-next-article
1781 "P" gnus-summary-prev-article
1782 "\M-\C-n" gnus-summary-next-same-subject
1783 "\M-\C-p" gnus-summary-prev-same-subject
1784 "\M-n" gnus-summary-next-unread-subject
1785 "\M-p" gnus-summary-prev-unread-subject
1786 "." gnus-summary-first-unread-article
1787 "," gnus-summary-best-unread-article
1788 "\M-s" gnus-summary-search-article-forward
1789 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1790 "\M-S" gnus-summary-repeat-search-article-forward
1791 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
MB
1792 "<" gnus-summary-beginning-of-article
1793 ">" gnus-summary-end-of-article
1794 "j" gnus-summary-goto-article
1795 "^" gnus-summary-refer-parent-article
1796 "\M-^" gnus-summary-refer-article
1797 "u" gnus-summary-tick-article-forward
1798 "!" gnus-summary-tick-article-forward
1799 "U" gnus-summary-tick-article-backward
1800 "d" gnus-summary-mark-as-read-forward
1801 "D" gnus-summary-mark-as-read-backward
1802 "E" gnus-summary-mark-as-expirable
1803 "\M-u" gnus-summary-clear-mark-forward
1804 "\M-U" gnus-summary-clear-mark-backward
1805 "k" gnus-summary-kill-same-subject-and-select
1806 "\C-k" gnus-summary-kill-same-subject
1807 "\M-\C-k" gnus-summary-kill-thread
1808 "\M-\C-l" gnus-summary-lower-thread
1809 "e" gnus-summary-edit-article
1810 "#" gnus-summary-mark-as-processable
1811 "\M-#" gnus-summary-unmark-as-processable
1812 "\M-\C-t" gnus-summary-toggle-threads
1813 "\M-\C-s" gnus-summary-show-thread
1814 "\M-\C-h" gnus-summary-hide-thread
1815 "\M-\C-f" gnus-summary-next-thread
1816 "\M-\C-b" gnus-summary-prev-thread
1817 [(meta down)] gnus-summary-next-thread
1818 [(meta up)] gnus-summary-prev-thread
1819 "\M-\C-u" gnus-summary-up-thread
1820 "\M-\C-d" gnus-summary-down-thread
1821 "&" gnus-summary-execute-command
1822 "c" gnus-summary-catchup-and-exit
1823 "\C-w" gnus-summary-mark-region-as-read
1824 "\C-t" gnus-summary-toggle-truncation
1825 "?" gnus-summary-mark-as-dormant
1826 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1827 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1828 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1829 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1830 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1831 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1832 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1833 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1834 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1835 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1836 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1837 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1838 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1839 "=" gnus-summary-expand-window
1840 "\C-x\C-s" gnus-summary-reselect-current-group
1841 "\M-g" gnus-summary-rescan-group
1842 "w" gnus-summary-stop-page-breaking
1843 "\C-c\C-r" gnus-summary-caesar-message
1844 "f" gnus-summary-followup
1845 "F" gnus-summary-followup-with-original
1846 "C" gnus-summary-cancel-article
1847 "r" gnus-summary-reply
1848 "R" gnus-summary-reply-with-original
1849 "\C-c\C-f" gnus-summary-mail-forward
1850 "o" gnus-summary-save-article
1851 "\C-o" gnus-summary-save-article-mail
1852 "|" gnus-summary-pipe-output
1853 "\M-k" gnus-summary-edit-local-kill
1854 "\M-K" gnus-summary-edit-global-kill
1855 ;; "V" gnus-version
1856 "\C-c\C-d" gnus-summary-describe-group
1857 "q" gnus-summary-exit
1858 "Q" gnus-summary-exit-no-update
1859 "\C-c\C-i" gnus-info-find-node
1860 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1861 [follow-link] mouse-face
23f87bed
MB
1862 "m" gnus-summary-mail-other-window
1863 "a" gnus-summary-post-news
1864 "i" gnus-summary-news-other-window
1865 "x" gnus-summary-limit-to-unread
1866 "s" gnus-summary-isearch-article
1867 "t" gnus-summary-toggle-header
1868 "g" gnus-summary-show-article
1869 "l" gnus-summary-goto-last-article
1870 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1871 "\C-d" gnus-summary-enter-digest-group
1872 "\M-\C-d" gnus-summary-read-document
1873 "\M-\C-e" gnus-summary-edit-parameters
1874 "\M-\C-a" gnus-summary-customize-parameters
1875 "\C-c\C-b" gnus-bug
1876 "*" gnus-cache-enter-article
1877 "\M-*" gnus-cache-remove-article
1878 "\M-&" gnus-summary-universal-argument
1879 "\C-l" gnus-recenter
1880 "I" gnus-summary-increase-score
1881 "L" gnus-summary-lower-score
1882 "\M-i" gnus-symbolic-argument
1883 "h" gnus-summary-select-article-buffer
1884
1885 "b" gnus-article-view-part
1886 "\M-t" gnus-summary-toggle-display-buttonized
1887
1888 "V" gnus-summary-score-map
1889 "X" gnus-uu-extract-map
1890 "S" gnus-summary-send-map)
1891
1892;; Sort of orthogonal keymap
1893(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1894 "t" gnus-summary-tick-article-forward
1895 "!" gnus-summary-tick-article-forward
1896 "d" gnus-summary-mark-as-read-forward
1897 "r" gnus-summary-mark-as-read-forward
1898 "c" gnus-summary-clear-mark-forward
1899 " " gnus-summary-clear-mark-forward
1900 "e" gnus-summary-mark-as-expirable
1901 "x" gnus-summary-mark-as-expirable
1902 "?" gnus-summary-mark-as-dormant
1903 "b" gnus-summary-set-bookmark
1904 "B" gnus-summary-remove-bookmark
1905 "#" gnus-summary-mark-as-processable
1906 "\M-#" gnus-summary-unmark-as-processable
1907 "S" gnus-summary-limit-include-expunged
1908 "C" gnus-summary-catchup
1909 "H" gnus-summary-catchup-to-here
1910 "h" gnus-summary-catchup-from-here
1911 "\C-c" gnus-summary-catchup-all
1912 "k" gnus-summary-kill-same-subject-and-select
1913 "K" gnus-summary-kill-same-subject
1914 "P" gnus-uu-mark-map)
1915
1916(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1917 "c" gnus-summary-clear-above
1918 "u" gnus-summary-tick-above
1919 "m" gnus-summary-mark-above
1920 "k" gnus-summary-kill-below)
1921
1922(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1923 "/" gnus-summary-limit-to-subject
1924 "n" gnus-summary-limit-to-articles
01c52d31
MB
1925 "b" gnus-summary-limit-to-bodies
1926 "h" gnus-summary-limit-to-headers
23f87bed
MB
1927 "w" gnus-summary-pop-limit
1928 "s" gnus-summary-limit-to-subject
1929 "a" gnus-summary-limit-to-author
1930 "u" gnus-summary-limit-to-unread
1931 "m" gnus-summary-limit-to-marks
1932 "M" gnus-summary-limit-exclude-marks
1933 "v" gnus-summary-limit-to-score
1934 "*" gnus-summary-limit-include-cached
1935 "D" gnus-summary-limit-include-dormant
1936 "T" gnus-summary-limit-include-thread
1937 "d" gnus-summary-limit-exclude-dormant
1938 "t" gnus-summary-limit-to-age
1939 "." gnus-summary-limit-to-unseen
1940 "x" gnus-summary-limit-to-extra
1941 "p" gnus-summary-limit-to-display-predicate
1942 "E" gnus-summary-limit-include-expunged
1943 "c" gnus-summary-limit-exclude-childless-dormant
1944 "C" gnus-summary-limit-mark-excluded-as-read
1945 "o" gnus-summary-insert-old-articles
01c52d31
MB
1946 "N" gnus-summary-insert-new-articles
1947 "S" gnus-summary-limit-to-singletons
1948 "r" gnus-summary-limit-to-replied
1949 "R" gnus-summary-limit-to-recipient
1950 "A" gnus-summary-limit-to-address)
23f87bed
MB
1951
1952(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1953 "n" gnus-summary-next-unread-article
1954 "p" gnus-summary-prev-unread-article
1955 "N" gnus-summary-next-article
1956 "P" gnus-summary-prev-article
1957 "\C-n" gnus-summary-next-same-subject
1958 "\C-p" gnus-summary-prev-same-subject
1959 "\M-n" gnus-summary-next-unread-subject
1960 "\M-p" gnus-summary-prev-unread-subject
1961 "f" gnus-summary-first-unread-article
1962 "b" gnus-summary-best-unread-article
1963 "j" gnus-summary-goto-article
1964 "g" gnus-summary-goto-subject
1965 "l" gnus-summary-goto-last-article
1966 "o" gnus-summary-pop-article)
1967
1968(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1969 "k" gnus-summary-kill-thread
01c52d31 1970 "E" gnus-summary-expire-thread
23f87bed
MB
1971 "l" gnus-summary-lower-thread
1972 "i" gnus-summary-raise-thread
1973 "T" gnus-summary-toggle-threads
1974 "t" gnus-summary-rethread-current
1975 "^" gnus-summary-reparent-thread
01c52d31 1976 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1977 "s" gnus-summary-show-thread
1978 "S" gnus-summary-show-all-threads
1979 "h" gnus-summary-hide-thread
1980 "H" gnus-summary-hide-all-threads
1981 "n" gnus-summary-next-thread
1982 "p" gnus-summary-prev-thread
1983 "u" gnus-summary-up-thread
1984 "o" gnus-summary-top-thread
1985 "d" gnus-summary-down-thread
1986 "#" gnus-uu-mark-thread
1987 "\M-#" gnus-uu-unmark-thread)
1988
1989(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
1990 "g" gnus-summary-prepare
1991 "c" gnus-summary-insert-cached-articles
01c52d31
MB
1992 "d" gnus-summary-insert-dormant-articles
1993 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
1994
1995(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
1996 "c" gnus-summary-catchup-and-exit
1997 "C" gnus-summary-catchup-all-and-exit
1998 "E" gnus-summary-exit-no-update
1999 "Q" gnus-summary-exit
2000 "Z" gnus-summary-exit
2001 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2002 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2003 "R" gnus-summary-reselect-current-group
2004 "G" gnus-summary-rescan-group
2005 "N" gnus-summary-next-group
2006 "s" gnus-summary-save-newsrc
2007 "P" gnus-summary-prev-group)
2008
2009(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2010 " " gnus-summary-next-page
2011 "n" gnus-summary-next-page
2012 "\177" gnus-summary-prev-page
2013 [delete] gnus-summary-prev-page
2014 "p" gnus-summary-prev-page
2015 "\r" gnus-summary-scroll-up
2016 "\M-\r" gnus-summary-scroll-down
2017 "<" gnus-summary-beginning-of-article
2018 ">" gnus-summary-end-of-article
2019 "b" gnus-summary-beginning-of-article
2020 "e" gnus-summary-end-of-article
2021 "^" gnus-summary-refer-parent-article
2022 "r" gnus-summary-refer-parent-article
2023 "D" gnus-summary-enter-digest-group
2024 "R" gnus-summary-refer-references
2025 "T" gnus-summary-refer-thread
2026 "g" gnus-summary-show-article
2027 "s" gnus-summary-isearch-article
2028 "P" gnus-summary-print-article
01c52d31 2029 "S" gnus-sticky-article
23f87bed
MB
2030 "M" gnus-mailing-list-insinuate
2031 "t" gnus-article-babel)
2032
2033(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2034 "b" gnus-article-add-buttons
2035 "B" gnus-article-add-buttons-to-head
2036 "o" gnus-article-treat-overstrike
2037 "e" gnus-article-emphasize
2038 "w" gnus-article-fill-cited-article
2039 "Q" gnus-article-fill-long-lines
01c52d31 2040 "L" gnus-article-toggle-truncate-lines
23f87bed
MB
2041 "C" gnus-article-capitalize-sentences
2042 "c" gnus-article-remove-cr
2043 "q" gnus-article-de-quoted-unreadable
2044 "6" gnus-article-de-base64-unreadable
2045 "Z" gnus-article-decode-HZ
01c52d31 2046 "A" gnus-article-treat-ansi-sequences
23f87bed
MB
2047 "h" gnus-article-wash-html
2048 "u" gnus-article-unsplit-urls
2049 "s" gnus-summary-force-verify-and-decrypt
2050 "f" gnus-article-display-x-face
2051 "l" gnus-summary-stop-page-breaking
2052 "r" gnus-summary-caesar-message
2053 "m" gnus-summary-morse-message
2054 "t" gnus-summary-toggle-header
2055 "g" gnus-treat-smiley
2056 "v" gnus-summary-verbose-headers
2057 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2058 "p" gnus-article-verify-x-pgp-sig
01c52d31
MB
2059 "d" gnus-article-treat-dumbquotes
2060 "i" gnus-summary-idna-message)
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2061
2062(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2063 ;; mnemonic: deuglif*Y*
2064 "u" gnus-article-outlook-unwrap-lines
2065 "a" gnus-article-outlook-repair-attribution
2066 "c" gnus-article-outlook-rearrange-citation
2067 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2068
2069(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2070 "a" gnus-article-hide
2071 "h" gnus-article-hide-headers
2072 "b" gnus-article-hide-boring-headers
2073 "s" gnus-article-hide-signature
2074 "c" gnus-article-hide-citation
2075 "C" gnus-article-hide-citation-in-followups
2076 "l" gnus-article-hide-list-identifiers
2077 "B" gnus-article-strip-banner
2078 "P" gnus-article-hide-pem
2079 "\C-c" gnus-article-hide-citation-maybe)
2080
2081(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2082 "a" gnus-article-highlight
2083 "h" gnus-article-highlight-headers
2084 "c" gnus-article-highlight-citation
2085 "s" gnus-article-highlight-signature)
2086
2087(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2088 "f" gnus-article-treat-fold-headers
2089 "u" gnus-article-treat-unfold-headers
2090 "n" gnus-article-treat-fold-newsgroups)
2091
2092(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2093 "x" gnus-article-display-x-face
2094 "d" gnus-article-display-face
2095 "s" gnus-treat-smiley
2096 "D" gnus-article-remove-images
2097 "f" gnus-treat-from-picon
2098 "m" gnus-treat-mail-picon
2099 "n" gnus-treat-newsgroups-picon)
2100
2101(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2102 "w" gnus-article-decode-mime-words
2103 "c" gnus-article-decode-charset
2104 "v" gnus-mime-view-all-parts
2105 "b" gnus-article-view-part)
2106
2107(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2108 "z" gnus-article-date-ut
2109 "u" gnus-article-date-ut
2110 "l" gnus-article-date-local
2111 "p" gnus-article-date-english
2112 "e" gnus-article-date-lapsed
2113 "o" gnus-article-date-original
2114 "i" gnus-article-date-iso8601
2115 "s" gnus-article-date-user)
2116
2117(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2118 "t" gnus-article-remove-trailing-blank-lines
2119 "l" gnus-article-strip-leading-blank-lines
2120 "m" gnus-article-strip-multiple-blank-lines
2121 "a" gnus-article-strip-blank-lines
2122 "A" gnus-article-strip-all-blank-lines
2123 "s" gnus-article-strip-leading-space
2124 "e" gnus-article-strip-trailing-space
2125 "w" gnus-article-remove-leading-whitespace)
2126
2127(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2128 "v" gnus-version
2129 "f" gnus-summary-fetch-faq
2130 "d" gnus-summary-describe-group
2131 "h" gnus-summary-describe-briefly
2132 "i" gnus-info-find-node
2133 "c" gnus-group-fetch-charter
2134 "C" gnus-group-fetch-control)
2135
2136(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2137 "e" gnus-summary-expire-articles
2138 "\M-\C-e" gnus-summary-expire-articles-now
2139 "\177" gnus-summary-delete-article
2140 [delete] gnus-summary-delete-article
2141 [backspace] gnus-summary-delete-article
2142 "m" gnus-summary-move-article
2143 "r" gnus-summary-respool-article
2144 "w" gnus-summary-edit-article
2145 "c" gnus-summary-copy-article
2146 "B" gnus-summary-crosspost-article
2147 "q" gnus-summary-respool-query
2148 "t" gnus-summary-respool-trace
2149 "i" gnus-summary-import-article
2150 "I" gnus-summary-create-article
2151 "p" gnus-summary-article-posted-p)
2152
2153(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2154 "o" gnus-summary-save-article
2155 "m" gnus-summary-save-article-mail
2156 "F" gnus-summary-write-article-file
2157 "r" gnus-summary-save-article-rmail
2158 "f" gnus-summary-save-article-file
2159 "b" gnus-summary-save-article-body-file
26c9afc3 2160 "B" gnus-summary-write-article-body-file
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2161 "h" gnus-summary-save-article-folder
2162 "v" gnus-summary-save-article-vm
2163 "p" gnus-summary-pipe-output
2164 "P" gnus-summary-muttprint
2165 "s" gnus-soup-add-article)
2166
2167(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2168 "b" gnus-summary-display-buttonized
2169 "m" gnus-summary-repair-multipart
2170 "v" gnus-article-view-part
2171 "o" gnus-article-save-part
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2172 "O" gnus-article-save-part-and-strip
2173 "r" gnus-article-replace-part
2174 "d" gnus-article-delete-part
2175 "t" gnus-article-view-part-as-type
2176 "j" gnus-article-jump-to-part
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2177 "c" gnus-article-copy-part
2178 "C" gnus-article-view-part-as-charset
2179 "e" gnus-article-view-part-externally
01c52d31 2180 "H" gnus-article-browse-html-article
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2181 "E" gnus-article-encrypt-body
2182 "i" gnus-article-inline-part
2183 "|" gnus-article-pipe-part)
2184
2185(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2186 "p" gnus-summary-mark-as-processable
2187 "u" gnus-summary-unmark-as-processable
2188 "U" gnus-summary-unmark-all-processable
2189 "v" gnus-uu-mark-over
2190 "s" gnus-uu-mark-series
2191 "r" gnus-uu-mark-region
2192 "g" gnus-uu-unmark-region
2193 "R" gnus-uu-mark-by-regexp
2194 "G" gnus-uu-unmark-by-regexp
2195 "t" gnus-uu-mark-thread
2196 "T" gnus-uu-unmark-thread
2197 "a" gnus-uu-mark-all
2198 "b" gnus-uu-mark-buffer
2199 "S" gnus-uu-mark-sparse
2200 "k" gnus-summary-kill-process-mark
2201 "y" gnus-summary-yank-process-mark
2202 "w" gnus-summary-save-process-mark
2203 "i" gnus-uu-invert-processable)
2204
2205(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2206 ;;"x" gnus-uu-extract-any
2207 "m" gnus-summary-save-parts
2208 "u" gnus-uu-decode-uu
2209 "U" gnus-uu-decode-uu-and-save
2210 "s" gnus-uu-decode-unshar
2211 "S" gnus-uu-decode-unshar-and-save
2212 "o" gnus-uu-decode-save
2213 "O" gnus-uu-decode-save
2214 "b" gnus-uu-decode-binhex
2215 "B" gnus-uu-decode-binhex
b890d447 2216 "Y" gnus-uu-decode-yenc
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2217 "p" gnus-uu-decode-postscript
2218 "P" gnus-uu-decode-postscript-and-save)
2219
2220(gnus-define-keys
2221 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2222 "u" gnus-uu-decode-uu-view
2223 "U" gnus-uu-decode-uu-and-save-view
2224 "s" gnus-uu-decode-unshar-view
2225 "S" gnus-uu-decode-unshar-and-save-view
2226 "o" gnus-uu-decode-save-view
2227 "O" gnus-uu-decode-save-view
2228 "b" gnus-uu-decode-binhex-view
2229 "B" gnus-uu-decode-binhex-view
2230 "p" gnus-uu-decode-postscript-view
2231 "P" gnus-uu-decode-postscript-and-save-view)
2232
2233(defvar gnus-article-post-menu nil)
2234
2235(defconst gnus-summary-menu-maxlen 20)
2236
2237(defun gnus-summary-menu-split (menu)
2238 ;; If we have lots of elements, divide them into groups of 20
2239 ;; and make a pane (or submenu) for each one.
2240 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2241 (let ((menu menu) sublists next
2242 (i 1))
2243 (while menu
2244 ;; Pull off the next gnus-summary-menu-maxlen elements
2245 ;; and make them the next element of sublist.
2246 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2247 (if next
2248 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2249 nil))
2250 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2251 (aref (car (last menu)) 0)) menu)
2252 sublists))
2253 (setq i (1+ i))
2254 (setq menu next))
2255 (nreverse sublists))
2256 ;; Few elements--put them all in one pane.
2257 menu))
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2258
2259(defun gnus-summary-make-menu-bar ()
2260 (gnus-turn-off-edit-menu 'summary)
2261
2262 (unless (boundp 'gnus-summary-misc-menu)
2263
2264 (easy-menu-define
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2265 gnus-summary-kill-menu gnus-summary-mode-map ""
2266 (cons
2267 "Score"
2268 (nconc
2269 (list
2270 ["Customize" gnus-score-customize t])
2271 (gnus-make-score-map 'increase)
2272 (gnus-make-score-map 'lower)
2273 '(("Mark"
2274 ["Kill below" gnus-summary-kill-below t]
2275 ["Mark above" gnus-summary-mark-above t]
2276 ["Tick above" gnus-summary-tick-above t]
2277 ["Clear above" gnus-summary-clear-above t])
2278 ["Current score" gnus-summary-current-score t]
2279 ["Set score" gnus-summary-set-score t]
2280 ["Switch current score file..." gnus-score-change-score-file t]
2281 ["Set mark below..." gnus-score-set-mark-below t]
2282 ["Set expunge below..." gnus-score-set-expunge-below t]
2283 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2284 ["Edit score file..." gnus-score-edit-file t]
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2285 ["Trace score" gnus-score-find-trace t]
2286 ["Find words" gnus-score-find-favourite-words t]
2287 ["Rescore buffer" gnus-summary-rescore t]
2288 ["Increase score..." gnus-summary-increase-score t]
2289 ["Lower score..." gnus-summary-lower-score t]))))
2290
2291 ;; Define both the Article menu in the summary buffer and the
2292 ;; equivalent Commands menu in the article buffer here for
2293 ;; consistency.
6748645f 2294 (let ((innards
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2295 `(("Hide"
2296 ["All" gnus-article-hide t]
2297 ["Headers" gnus-article-hide-headers t]
2298 ["Signature" gnus-article-hide-signature t]
2299 ["Citation" gnus-article-hide-citation t]
16409b0b 2300 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2301 ["Banner" gnus-article-strip-banner t]
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2302 ["Boring headers" gnus-article-hide-boring-headers t])
2303 ("Highlight"
2304 ["All" gnus-article-highlight t]
2305 ["Headers" gnus-article-highlight-headers t]
2306 ["Signature" gnus-article-highlight-signature t]
2307 ["Citation" gnus-article-highlight-citation t])
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GM
2308 ("MIME"
2309 ["Words" gnus-article-decode-mime-words t]
2310 ["Charset" gnus-article-decode-charset t]
2311 ["QP" gnus-article-de-quoted-unreadable t]
2312 ["Base64" gnus-article-de-base64-unreadable t]
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2313 ["View MIME buttons" gnus-summary-display-buttonized t]
2314 ["View all" gnus-mime-view-all-parts t]
2315 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2316 ["Encrypt body" gnus-article-encrypt-body
2317 :active (not (gnus-group-read-only-p))
2318 ,@(if (featurep 'xemacs) nil
2319 '(:help "Encrypt the message body on disk"))]
2320 ["Extract all parts..." gnus-summary-save-parts t]
2321 ("Multipart"
2322 ["Repair multipart" gnus-summary-repair-multipart t]
2323 ["Pipe part..." gnus-article-pipe-part t]
2324 ["Inline part" gnus-article-inline-part t]
01c52d31 2325 ["View part as type..." gnus-article-view-part-as-type t]
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2326 ["Encrypt body" gnus-article-encrypt-body
2327 :active (not (gnus-group-read-only-p))
2328 ,@(if (featurep 'xemacs) nil
2329 '(:help "Encrypt the message body on disk"))]
2330 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2331 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2332 ["View part with charset..." gnus-article-view-part-as-charset t]
2333 ["Copy part" gnus-article-copy-part t]
2334 ["Save part..." gnus-article-save-part t]
2335 ["View part" gnus-article-view-part t]))
2336 ("Date"
2337 ["Local" gnus-article-date-local t]
2338 ["ISO8601" gnus-article-date-iso8601 t]
2339 ["UT" gnus-article-date-ut t]
2340 ["Original" gnus-article-date-original t]
2341 ["Lapsed" gnus-article-date-lapsed t]
2342 ["User-defined" gnus-article-date-user t])
2343 ("Display"
2344 ["Remove images" gnus-article-remove-images t]
2345 ["Toggle smiley" gnus-treat-smiley t]
2346 ["Show X-Face" gnus-article-display-x-face t]
2347 ["Show picons in From" gnus-treat-from-picon t]
2348 ["Show picons in mail headers" gnus-treat-mail-picon t]
2349 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2350 ("View as different encoding"
2351 ,@(gnus-summary-menu-split
2352 (mapcar
2353 (lambda (cs)
2354 ;; Since easymenu under Emacs doesn't allow
2355 ;; lambda forms for menu commands, we should
2356 ;; provide intern'ed function symbols.
2357 (let ((command (intern (format "\
2358gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2359 (fset command
2360 `(lambda ()
2361 (interactive)
2362 (let ((gnus-summary-show-article-charset-alist
2363 '((1 . ,cs))))
2364 (gnus-summary-show-article 1))))
2365 `[,(symbol-name cs) ,command t]))
2366 (sort (if (fboundp 'coding-system-list)
2367 (coding-system-list)
2368 (mapcar 'car mm-mime-mule-charset-alist))
2369 'string<)))))
2370 ("Washing"
2371 ("Remove Blanks"
2372 ["Leading" gnus-article-strip-leading-blank-lines t]
2373 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2374 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2375 ["All of the above" gnus-article-strip-blank-lines t]
2376 ["All" gnus-article-strip-all-blank-lines t]
2377 ["Leading space" gnus-article-strip-leading-space t]
2378 ["Trailing space" gnus-article-strip-trailing-space t]
2379 ["Leading space in headers"
2380 gnus-article-remove-leading-whitespace t])
2381 ["Overstrike" gnus-article-treat-overstrike t]
2382 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2383 ["Emphasis" gnus-article-emphasize t]
2384 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2385 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2386 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2387 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2388 ["Remove CR" gnus-article-remove-cr t]
2389 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2390 ["Base64" gnus-article-de-base64-unreadable t]
2391 ["Rot 13" gnus-summary-caesar-message
2392 ,@(if (featurep 'xemacs) '(t)
2393 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2394 ["De-IDNA" gnus-summary-idna-message t]
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2395 ["Morse decode" gnus-summary-morse-message t]
2396 ["Unix pipe..." gnus-summary-pipe-message t]
2397 ["Add buttons" gnus-article-add-buttons t]
2398 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2399 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2400 ["Verbose header" gnus-summary-verbose-headers t]
2401 ["Toggle header" gnus-summary-toggle-header t]
2402 ["Unfold headers" gnus-article-treat-unfold-headers t]
2403 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2404 ["Html" gnus-article-wash-html t]
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2405 ["Unsplit URLs" gnus-article-unsplit-urls t]
2406 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2407 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2408 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
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2409 ("(Outlook) Deuglify"
2410 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2411 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2412 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2413 ["Full (Outlook) deuglify"
2414 gnus-article-outlook-deuglify-article t])
2415 )
2416 ("Output"
2417 ["Save in default format..." gnus-summary-save-article
2418 ,@(if (featurep 'xemacs) '(t)
2419 '(:help "Save article using default method"))]
2420 ["Save in file..." gnus-summary-save-article-file
2421 ,@(if (featurep 'xemacs) '(t)
2422 '(:help "Save article in file"))]
2423 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2424 ["Save in MH folder..." gnus-summary-save-article-folder t]
2425 ["Save in VM folder..." gnus-summary-save-article-vm t]
2426 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2427 ["Save body in file..." gnus-summary-save-article-body-file t]
2428 ["Pipe through a filter..." gnus-summary-pipe-output t]
2429 ["Add to SOUP packet" gnus-soup-add-article t]
2430 ["Print with Muttprint..." gnus-summary-muttprint t]
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2431 ["Print" gnus-summary-print-article
2432 ,@(if (featurep 'xemacs) '(t)
2433 '(:help "Generate and print a PostScript image"))])
2434 ("Copy, move,... (Backend)"
707f2b38 2435 ,@(if (featurep 'xemacs) nil
531e5812 2436 '(:help "Copying, moving, expiring articles..."))
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2437 ["Respool article..." gnus-summary-respool-article t]
2438 ["Move article..." gnus-summary-move-article
2439 (gnus-check-backend-function
2440 'request-move-article gnus-newsgroup-name)]
2441 ["Copy article..." gnus-summary-copy-article t]
2442 ["Crosspost article..." gnus-summary-crosspost-article
2443 (gnus-check-backend-function
2444 'request-replace-article gnus-newsgroup-name)]
2445 ["Import file..." gnus-summary-import-article
2446 (gnus-check-backend-function
2447 'request-accept-article gnus-newsgroup-name)]
2448 ["Create article..." gnus-summary-create-article
2449 (gnus-check-backend-function
2450 'request-accept-article gnus-newsgroup-name)]
2451 ["Check if posted" gnus-summary-article-posted-p t]
2452 ["Edit article" gnus-summary-edit-article
2453 (not (gnus-group-read-only-p))]
2454 ["Delete article" gnus-summary-delete-article
2455 (gnus-check-backend-function
2456 'request-expire-articles gnus-newsgroup-name)]
2457 ["Query respool" gnus-summary-respool-query t]
6748645f 2458 ["Trace respool" gnus-summary-respool-trace t]
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2459 ["Delete expirable articles" gnus-summary-expire-articles-now
2460 (gnus-check-backend-function
2461 'request-expire-articles gnus-newsgroup-name)])
2462 ("Extract"
2463 ["Uudecode" gnus-uu-decode-uu
2464 ,@(if (featurep 'xemacs) '(t)
2465 '(:help "Decode uuencoded article(s)"))]
2466 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2467 ["Unshar" gnus-uu-decode-unshar t]
2468 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2469 ["Save" gnus-uu-decode-save t]
2470 ["Binhex" gnus-uu-decode-binhex t]
2471 ["Postscript" gnus-uu-decode-postscript t]
2472 ["All MIME parts" gnus-summary-save-parts t])
2473 ("Cache"
2474 ["Enter article" gnus-cache-enter-article t]
2475 ["Remove article" gnus-cache-remove-article t])
16409b0b 2476 ["Translate" gnus-article-babel t]
23f87bed 2477 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2478 ["Make article buffer sticky" gnus-sticky-article t]
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2479 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2480 ["Isearch article..." gnus-summary-isearch-article t]
2481 ["Beginning of the article" gnus-summary-beginning-of-article t]
2482 ["End of the article" gnus-summary-end-of-article t]
2483 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2484 ["Fetch referenced articles" gnus-summary-refer-references t]
2485 ["Fetch current thread" gnus-summary-refer-thread t]
2486 ["Fetch article with id..." gnus-summary-refer-article t]
2487 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2488 ["Redisplay" gnus-summary-show-article t]
2489 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2490 (easy-menu-define
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2491 gnus-summary-article-menu gnus-summary-mode-map ""
2492 (cons "Article" innards))
6748645f 2493
1653df0f
SZ
2494 (if (not (keymapp gnus-summary-article-menu))
2495 (easy-menu-define
2496 gnus-article-commands-menu gnus-article-mode-map ""
2497 (cons "Commands" innards))
2498 ;; in Emacs, don't share menu.
a1506d29 2499 (setq gnus-article-commands-menu
1653df0f
SZ
2500 (copy-keymap gnus-summary-article-menu))
2501 (define-key gnus-article-mode-map [menu-bar commands]
2502 (cons "Commands" gnus-article-commands-menu))))
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2503
2504 (easy-menu-define
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2505 gnus-summary-thread-menu gnus-summary-mode-map ""
2506 '("Threads"
2507 ["Find all messages in thread" gnus-summary-refer-thread t]
2508 ["Toggle threading" gnus-summary-toggle-threads t]
2509 ["Hide threads" gnus-summary-hide-all-threads t]
2510 ["Show threads" gnus-summary-show-all-threads t]
2511 ["Hide thread" gnus-summary-hide-thread t]
2512 ["Show thread" gnus-summary-show-thread t]
2513 ["Go to next thread" gnus-summary-next-thread t]
2514 ["Go to previous thread" gnus-summary-prev-thread t]
2515 ["Go down thread" gnus-summary-down-thread t]
2516 ["Go up thread" gnus-summary-up-thread t]
2517 ["Top of thread" gnus-summary-top-thread t]
2518 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2519 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2520 ["Lower thread score" gnus-summary-lower-thread t]
2521 ["Raise thread score" gnus-summary-raise-thread t]
2522 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2523
2524 (easy-menu-define
23f87bed
MB
2525 gnus-summary-post-menu gnus-summary-mode-map ""
2526 `("Post"
2527 ["Send a message (mail or news)" gnus-summary-post-news
2528 ,@(if (featurep 'xemacs) '(t)
531e5812 2529 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2530 ["Followup" gnus-summary-followup
2531 ,@(if (featurep 'xemacs) '(t)
2532 '(:help "Post followup to this article"))]
2533 ["Followup and yank" gnus-summary-followup-with-original
2534 ,@(if (featurep 'xemacs) '(t)
2535 '(:help "Post followup to this article, quoting its contents"))]
2536 ["Supersede article" gnus-summary-supersede-article t]
2537 ["Cancel article" gnus-summary-cancel-article
2538 ,@(if (featurep 'xemacs) '(t)
2539 '(:help "Cancel an article you posted"))]
2540 ["Reply" gnus-summary-reply t]
2541 ["Reply and yank" gnus-summary-reply-with-original t]
2542 ["Wide reply" gnus-summary-wide-reply t]
2543 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2544 ,@(if (featurep 'xemacs) '(t)
2545 '(:help "Mail a reply, quoting this article"))]
2546 ["Very wide reply" gnus-summary-very-wide-reply t]
2547 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2548 ,@(if (featurep 'xemacs) '(t)
2549 '(:help "Mail a very wide reply, quoting this article"))]
2550 ["Mail forward" gnus-summary-mail-forward t]
2551 ["Post forward" gnus-summary-post-forward t]
2552 ["Digest and mail" gnus-uu-digest-mail-forward t]
2553 ["Digest and post" gnus-uu-digest-post-forward t]
2554 ["Resend message" gnus-summary-resend-message t]
2555 ["Resend message edit" gnus-summary-resend-message-edit t]
2556 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2557 ["Send a mail" gnus-summary-mail-other-window t]
2558 ["Create a local message" gnus-summary-news-other-window t]
2559 ["Uuencode and post" gnus-uu-post-news
2560 ,@(if (featurep 'xemacs) '(t)
2561 '(:help "Post a uuencoded article"))]
2562 ["Followup via news" gnus-summary-followup-to-mail t]
2563 ["Followup via news and yank"
2564 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2565 ["Strip signature on reply"
2566 (lambda ()
2567 (interactive)
2568 (if (not (memq message-cite-function
2569 '(message-cite-original-without-signature
2570 message-cite-original)))
2571 ;; Stupid workaround for XEmacs not honoring :visible.
2572 (message "Can't toggle this value of `message-cite-function'")
2573 (setq message-cite-function
2574 (if (eq message-cite-function
2575 'message-cite-original-without-signature)
2576 'message-cite-original
2577 'message-cite-original-without-signature))))
2578 ;; XEmacs barfs on :visible.
2579 ,@(if (featurep 'xemacs) nil
2580 '(:visible (memq message-cite-function
2581 '(message-cite-original-without-signature
2582 message-cite-original))))
2583 :style toggle
2584 :selected (eq message-cite-function
2585 'message-cite-original-without-signature)
2586 ,@(if (featurep 'xemacs) nil
2587 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2588 ;;("Draft"
2589 ;;["Send" gnus-summary-send-draft t]
2590 ;;["Send bounced" gnus-resend-bounced-mail t])
2591 ))
2592
2593 (cond
2594 ((not (keymapp gnus-summary-post-menu))
2595 (setq gnus-article-post-menu gnus-summary-post-menu))
2596 ((not gnus-article-post-menu)
2597 ;; Don't share post menu.
2598 (setq gnus-article-post-menu
2599 (copy-keymap gnus-summary-post-menu))))
2600 (define-key gnus-article-mode-map [menu-bar post]
2601 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2602
2603 (easy-menu-define
23f87bed
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2604 gnus-summary-misc-menu gnus-summary-mode-map ""
2605 `("Gnus"
2606 ("Mark Read"
2607 ["Mark as read" gnus-summary-mark-as-read-forward t]
2608 ["Mark same subject and select"
2609 gnus-summary-kill-same-subject-and-select t]
2610 ["Mark same subject" gnus-summary-kill-same-subject t]
2611 ["Catchup" gnus-summary-catchup
2612 ,@(if (featurep 'xemacs) '(t)
2613 '(:help "Mark unread articles in this group as read"))]
2614 ["Catchup all" gnus-summary-catchup-all t]
2615 ["Catchup to here" gnus-summary-catchup-to-here t]
2616 ["Catchup from here" gnus-summary-catchup-from-here t]
2617 ["Catchup region" gnus-summary-mark-region-as-read
2618 (gnus-mark-active-p)]
2619 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2620 ("Mark Various"
2621 ["Tick" gnus-summary-tick-article-forward t]
2622 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2623 ["Remove marks" gnus-summary-clear-mark-forward t]
2624 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2625 ["Set bookmark" gnus-summary-set-bookmark t]
2626 ["Remove bookmark" gnus-summary-remove-bookmark t])
8f7abae3
MB
2627 ("Registry Mark"
2628 ["Important" gnus-registry-set-article-Important-mark t]
2629 ["Not Important" gnus-registry-remove-article-Important-mark t]
2630 ["Work" gnus-registry-set-article-Work-mark t]
2631 ["Not Work" gnus-registry-remove-article-Work-mark t]
2632 ["Later" gnus-registry-set-article-Later-mark t]
2633 ["Not Later" gnus-registry-remove-article-Later-mark t]
2634 ["Personal" gnus-registry-set-article-Personal-mark t]
2635 ["Not Personal" gnus-registry-remove-article-Personal-mark t]
2636 ["To Do" gnus-registry-set-article-To-Do-mark t]
2637 ["Not To Do" gnus-registry-remove-article-To-Do-mark t])
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MB
2638 ("Limit to"
2639 ["Marks..." gnus-summary-limit-to-marks t]
2640 ["Subject..." gnus-summary-limit-to-subject t]
2641 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2642 ["Recipient..." gnus-summary-limit-to-recipient t]
2643 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2644 ["Age..." gnus-summary-limit-to-age t]
2645 ["Extra..." gnus-summary-limit-to-extra t]
2646 ["Score..." gnus-summary-limit-to-score t]
2647 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2648 ["Unread" gnus-summary-limit-to-unread t]
2649 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2650 ["Singletons" gnus-summary-limit-to-singletons t]
2651 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2652 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2653 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2654 ["Pop limit" gnus-summary-pop-limit t]
2655 ["Show dormant" gnus-summary-limit-include-dormant t]
2656 ["Hide childless dormant"
2657 gnus-summary-limit-exclude-childless-dormant t]
2658 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2659 ["Hide marked" gnus-summary-limit-exclude-marks t]
2660 ["Show expunged" gnus-summary-limit-include-expunged t])
2661 ("Process Mark"
2662 ["Set mark" gnus-summary-mark-as-processable t]
2663 ["Remove mark" gnus-summary-unmark-as-processable t]
2664 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2665 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2666 ["Mark above" gnus-uu-mark-over t]
2667 ["Mark series" gnus-uu-mark-series t]
2668 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2669 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2670 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2671 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2672 ["Mark all" gnus-uu-mark-all t]
2673 ["Mark buffer" gnus-uu-mark-buffer t]
2674 ["Mark sparse" gnus-uu-mark-sparse t]
2675 ["Mark thread" gnus-uu-mark-thread t]
2676 ["Unmark thread" gnus-uu-unmark-thread t]
2677 ("Process Mark Sets"
2678 ["Kill" gnus-summary-kill-process-mark t]
2679 ["Yank" gnus-summary-yank-process-mark
2680 gnus-newsgroup-process-stack]
2681 ["Save" gnus-summary-save-process-mark t]
2682 ["Run command on marked..." gnus-summary-universal-argument t]))
2683 ("Scroll article"
2684 ["Page forward" gnus-summary-next-page
2685 ,@(if (featurep 'xemacs) '(t)
2686 '(:help "Show next page of article"))]
2687 ["Page backward" gnus-summary-prev-page
2688 ,@(if (featurep 'xemacs) '(t)
2689 '(:help "Show previous page of article"))]
2690 ["Line forward" gnus-summary-scroll-up t])
2691 ("Move"
2692 ["Next unread article" gnus-summary-next-unread-article t]
2693 ["Previous unread article" gnus-summary-prev-unread-article t]
2694 ["Next article" gnus-summary-next-article t]
2695 ["Previous article" gnus-summary-prev-article t]
2696 ["Next unread subject" gnus-summary-next-unread-subject t]
2697 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2698 ["Next article same subject" gnus-summary-next-same-subject t]
2699 ["Previous article same subject" gnus-summary-prev-same-subject t]
2700 ["First unread article" gnus-summary-first-unread-article t]
2701 ["Best unread article" gnus-summary-best-unread-article t]
2702 ["Go to subject number..." gnus-summary-goto-subject t]
2703 ["Go to article number..." gnus-summary-goto-article t]
2704 ["Go to the last article" gnus-summary-goto-last-article t]
2705 ["Pop article off history" gnus-summary-pop-article t])
2706 ("Sort"
2707 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2708 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2709 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2710 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2711 ["Sort by subject" gnus-summary-sort-by-subject t]
2712 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2713 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2714 ["Sort by score" gnus-summary-sort-by-score t]
2715 ["Sort by lines" gnus-summary-sort-by-lines t]
2716 ["Sort by characters" gnus-summary-sort-by-chars t]
2717 ["Randomize" gnus-summary-sort-by-random t]
2718 ["Original sort" gnus-summary-sort-by-original t])
2719 ("Help"
2720 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2721 ["Describe group" gnus-summary-describe-group t]
2722 ["Fetch charter" gnus-group-fetch-charter
2723 ,@(if (featurep 'xemacs) nil
2724 '(:help "Display the charter of the current group"))]
2725 ["Fetch control message" gnus-group-fetch-control
2726 ,@(if (featurep 'xemacs) nil
2727 '(:help "Display the archived control message for the current group"))]
2728 ["Read manual" gnus-info-find-node t])
2729 ("Modes"
2730 ["Pick and read" gnus-pick-mode t]
2731 ["Binary" gnus-binary-mode t])
2732 ("Regeneration"
2733 ["Regenerate" gnus-summary-prepare t]
2734 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2735 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2736 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2737 ["Toggle threading" gnus-summary-toggle-threads t])
2738 ["See old articles" gnus-summary-insert-old-articles t]
2739 ["See new articles" gnus-summary-insert-new-articles t]
2740 ["Filter articles..." gnus-summary-execute-command t]
2741 ["Run command on articles..." gnus-summary-universal-argument t]
2742 ["Search articles forward..." gnus-summary-search-article-forward t]
2743 ["Search articles backward..." gnus-summary-search-article-backward t]
2744 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2745 ["Expand window" gnus-summary-expand-window t]
2746 ["Expire expirable articles" gnus-summary-expire-articles
2747 (gnus-check-backend-function
2748 'request-expire-articles gnus-newsgroup-name)]
2749 ["Edit local kill file" gnus-summary-edit-local-kill t]
2750 ["Edit main kill file" gnus-summary-edit-global-kill t]
2751 ["Edit group parameters" gnus-summary-edit-parameters t]
2752 ["Customize group parameters" gnus-summary-customize-parameters t]
2753 ["Send a bug report" gnus-bug t]
2754 ("Exit"
2755 ["Catchup and exit" gnus-summary-catchup-and-exit
2756 ,@(if (featurep 'xemacs) '(t)
2757 '(:help "Mark unread articles in this group as read, then exit"))]
2758 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2759 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2760 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2761 ["Exit group" gnus-summary-exit
2762 ,@(if (featurep 'xemacs) '(t)
2763 '(:help "Exit current group, return to group selection mode"))]
2764 ["Exit group without updating" gnus-summary-exit-no-update t]
2765 ["Exit and goto next group" gnus-summary-next-group t]
2766 ["Exit and goto prev group" gnus-summary-prev-group t]
2767 ["Reselect group" gnus-summary-reselect-current-group t]
2768 ["Rescan group" gnus-summary-rescan-group t]
2769 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2770
6748645f 2771 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2772
60bd5589
DL
2773(defvar gnus-summary-tool-bar-map nil)
2774
18c06a99
RS
2775;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2776;; affect _new_ message buffers. We might add a function that walks thru all
2777;; summary-mode buffers and force the update.
2778(defun gnus-summary-tool-bar-update (&optional symbol value)
2779 "Update summary mode toolbar.
2780Setter function for custom variables."
2781 (setq-default gnus-summary-tool-bar-map nil)
2782 (when symbol
2783 ;; When used as ":set" function:
2784 (set-default symbol value))
2785 (when (gnus-buffer-live-p gnus-summary-buffer)
2786 (with-current-buffer gnus-summary-buffer
2787 (gnus-summary-make-tool-bar))))
2788
2789(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2790 'gnus-summary-tool-bar-gnome
2791 'gnus-summary-tool-bar-retro)
2792 "Specifies the Gnus summary tool bar.
2793
2794It can be either a list or a symbol refering to a list. See
2795`gmm-tool-bar-from-list' for the format of the list. The
2796default key map is `gnus-summary-mode-map'.
2797
2798Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2799`gnus-summary-tool-bar-retro'."
2800 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2801 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2802 (repeat :tag "User defined list" gmm-tool-bar-item)
2803 (symbol))
330f707b 2804 :version "23.1" ;; No Gnus
18c06a99
RS
2805 :initialize 'custom-initialize-default
2806 :set 'gnus-summary-tool-bar-update
2807 :group 'gnus-summary)
2808
2809(defcustom gnus-summary-tool-bar-gnome
2810 '((gnus-summary-post-news "mail/compose" nil)
2811 (gnus-summary-insert-new-articles "mail/inbox" nil
2812 :visible (or (not gnus-agent)
2813 gnus-plugged))
2814 (gnus-summary-reply-with-original "mail/reply")
2815 (gnus-summary-reply "mail/reply" nil :visible nil)
2816 (gnus-summary-followup-with-original "mail/reply-all")
2817 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2818 (gnus-summary-mail-forward "mail/forward")
2819 (gnus-summary-save-article "mail/save")
2820 (gnus-summary-search-article-forward "search" nil :visible nil)
2821 (gnus-summary-print-article "print")
2822 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2823 ;; Some new commands that may need more suitable icons:
2824 (gnus-summary-save-newsrc "save" nil :visible nil)
2825 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2826 (gnus-summary-prev-article "left-arrow")
2827 (gnus-summary-next-article "right-arrow")
2828 (gnus-summary-next-page "next-page")
2829 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2830 ;;
2831 ;; Maybe some sort-by-... could be added:
2832 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2833 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2834 (gnus-summary-mark-as-expirable
2835 "delete" nil
2836 :visible (gnus-check-backend-function 'request-expire-articles
2837 gnus-newsgroup-name))
2838 (gnus-summary-mark-as-spam
2839 "mail/spam" t
2840 :visible (and (fboundp 'spam-group-ham-contents-p)
2841 (spam-group-ham-contents-p gnus-newsgroup-name))
2842 :help "Mark as spam")
2843 (gnus-summary-mark-as-read-forward
2844 "mail/not-spam" nil
2845 :visible (and (fboundp 'spam-group-spam-contents-p)
2846 (spam-group-spam-contents-p gnus-newsgroup-name)))
2847 ;;
2848 (gnus-summary-exit "exit")
2849 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2850 (gnus-info-find-node "help"))
2851 "List of functions for the summary tool bar (GNOME style).
2852
2853See `gmm-tool-bar-from-list' for the format of the list."
2854 :type '(repeat gmm-tool-bar-item)
330f707b 2855 :version "23.1" ;; No Gnus
18c06a99
RS
2856 :initialize 'custom-initialize-default
2857 :set 'gnus-summary-tool-bar-update
2858 :group 'gnus-summary)
2859
2860(defcustom gnus-summary-tool-bar-retro
2861 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2862 (gnus-summary-next-unread-article "gnus/next-ur")
2863 (gnus-summary-post-news "gnus/post")
2864 (gnus-summary-followup-with-original "gnus/fuwo")
2865 (gnus-summary-followup "gnus/followup")
2866 (gnus-summary-reply-with-original "gnus/reply-wo")
2867 (gnus-summary-reply "gnus/reply")
2868 (gnus-summary-caesar-message "gnus/rot13")
2869 (gnus-uu-decode-uu "gnus/uu-decode")
2870 (gnus-summary-save-article-file "gnus/save-aif")
2871 (gnus-summary-save-article "gnus/save-art")
2872 (gnus-uu-post-news "gnus/uu-post")
2873 (gnus-summary-catchup "gnus/catchup")
2874 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2875 (gnus-summary-exit "gnus/exit-summ")
2876 ;; Some new command that may need more suitable icons:
2877 (gnus-summary-print-article "gnus/print" nil :visible nil)
2878 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2879 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2880 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2881 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2882 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2883 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2884 ;;
2885 (gnus-info-find-node "gnus/help" nil :visible nil))
2886 "List of functions for the summary tool bar (retro look).
2887
2888See `gmm-tool-bar-from-list' for the format of the list."
2889 :type '(repeat gmm-tool-bar-item)
330f707b 2890 :version "23.1" ;; No Gnus
18c06a99
RS
2891 :initialize 'custom-initialize-default
2892 :set 'gnus-summary-tool-bar-update
2893 :group 'gnus-summary)
2894
2895(defcustom gnus-summary-tool-bar-zap-list t
2896 "List of icon items from the global tool bar.
2897These items are not displayed in the Gnus summary mode tool bar.
2898
2899See `gmm-tool-bar-from-list' for the format of the list."
2900 :type 'gmm-tool-bar-zap-list
330f707b 2901 :version "23.1" ;; No Gnus
18c06a99
RS
2902 :initialize 'custom-initialize-default
2903 :set 'gnus-summary-tool-bar-update
2904 :group 'gnus-summary)
2905
2906(defvar image-load-path)
f654fa04 2907(defvar tool-bar-map)
18c06a99
RS
2908
2909(defun gnus-summary-make-tool-bar (&optional force)
2910 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2911When FORCE, rebuild the tool bar."
2912 (when (and (not (featurep 'xemacs))
2913 (boundp 'tool-bar-mode)
2914 tool-bar-mode
2915 (or (not gnus-summary-tool-bar-map) force))
2916 (let* ((load-path
2917 (gmm-image-load-path-for-library "gnus"
2918 "mail/save.xpm"
2919 nil t))
2920 (image-load-path (cons (car load-path)
2921 (when (boundp 'image-load-path)
2922 image-load-path)))
2923 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2924 gnus-summary-tool-bar-zap-list
2925 'gnus-summary-mode-map)))
2926 (when map
2927 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2928 ;; uses it's value.
2929 (setq gnus-summary-tool-bar-map map))))
2930 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2931
eec82323
LMI
2932(defun gnus-score-set-default (var value)
2933 "A version of set that updates the GNU Emacs menu-bar."
2934 (set var value)
2935 ;; It is the message that forces the active status to be updated.
2936 (message ""))
2937
2938(defun gnus-make-score-map (type)
2939 "Make a summary score map of type TYPE."
2940 (if t
2941 nil
2942 (let ((headers '(("author" "from" string)
2943 ("subject" "subject" string)
2944 ("article body" "body" string)
2945 ("article head" "head" string)
2946 ("xref" "xref" string)
16409b0b 2947 ("extra header" "extra" string)
eec82323
LMI
2948 ("lines" "lines" number)
2949 ("followups to author" "followup" string)))
2950 (types '((number ("less than" <)
2951 ("greater than" >)
2952 ("equal" =))
2953 (string ("substring" s)
2954 ("exact string" e)
2955 ("fuzzy string" f)
2956 ("regexp" r))))
2957 (perms '(("temporary" (current-time-string))
2958 ("permanent" nil)
2959 ("immediate" now)))
2960 header)
2961 (list
2962 (apply
2963 'nconc
2964 (list
2965 (if (eq type 'lower)
2966 "Lower score"
2967 "Increase score"))
2968 (let (outh)
2969 (while headers
2970 (setq header (car headers))
2971 (setq outh
2972 (cons
2973 (apply
2974 'nconc
2975 (list (car header))
2976 (let ((ts (cdr (assoc (nth 2 header) types)))
2977 outt)
2978 (while ts
2979 (setq outt
2980 (cons
2981 (apply
2982 'nconc
2983 (list (caar ts))
2984 (let ((ps perms)
2985 outp)
2986 (while ps
2987 (setq outp
2988 (cons
2989 (vector
2990 (caar ps)
2991 (list
2992 'gnus-summary-score-entry
2993 (nth 1 header)
2994 (if (or (string= (nth 1 header)
2995 "head")
2996 (string= (nth 1 header)
2997 "body"))
2998 ""
2999 (list 'gnus-summary-header
3000 (nth 1 header)))
3001 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3002 (list 'gnus-score-delta-default
3003 nil)
eec82323
LMI
3004 (nth 1 (car ps))
3005 t)
3006 t)
3007 outp))
3008 (setq ps (cdr ps)))
3009 (list (nreverse outp))))
3010 outt))
3011 (setq ts (cdr ts)))
3012 (list (nreverse outt))))
3013 outh))
3014 (setq headers (cdr headers)))
3015 (list (nreverse outh))))))))
3016
704f1663
GM
3017
3018(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
3019
eec82323
LMI
3020\f
3021
3022(defun gnus-summary-mode (&optional group)
3023 "Major mode for reading articles.
3024
3025All normal editing commands are switched off.
3026\\<gnus-summary-mode-map>
3027Each line in this buffer represents one article. To read an
3028article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3029and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3030respectively.
3031
3032You can also post articles and send mail from this buffer. To
23f87bed 3033follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3034of an article, type `\\[gnus-summary-reply]'.
3035
3036There are approx. one gazillion commands you can execute in this
3037buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3038
3039The following commands are available:
3040
3041\\{gnus-summary-mode-map}"
3042 (interactive)
eec82323 3043 (kill-all-local-variables)
01c52d31
MB
3044 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3045 (gnus-summary-make-local-variables))
3046 (gnus-summary-make-local-variables)
3047 (setq gnus-newsgroup-name group)
60bd5589
DL
3048 (when (gnus-visual-p 'summary-menu 'menu)
3049 (gnus-summary-make-menu-bar)
3050 (gnus-summary-make-tool-bar))
eec82323
LMI
3051 (gnus-make-thread-indent-array)
3052 (gnus-simplify-mode-line)
3053 (setq major-mode 'gnus-summary-mode)
3054 (setq mode-name "Summary")
3055 (make-local-variable 'minor-mode-alist)
3056 (use-local-map gnus-summary-mode-map)
16409b0b 3057 (buffer-disable-undo)
01c52d31
MB
3058 (setq buffer-read-only t ;Disable modification
3059 show-trailing-whitespace nil)
eec82323
LMI
3060 (setq truncate-lines t)
3061 (setq selective-display t)
3062 (setq selective-display-ellipses t) ;Display `...'
3063 (gnus-summary-set-display-table)
3064 (gnus-set-default-directory)
eec82323
LMI
3065 (make-local-variable 'gnus-summary-line-format)
3066 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3067 (make-local-variable 'gnus-summary-dummy-line-format)
3068 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3069 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3070 (gnus-make-local-hook 'pre-command-hook)
6748645f 3071 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3072 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3073 (turn-on-gnus-mailing-list-mode)
87545352 3074 (mm-enable-multibyte)
eec82323
LMI
3075 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3076 (gnus-update-summary-mark-positions))
3077
3078(defun gnus-summary-make-local-variables ()
3079 "Make all the local summary buffer variables."
16409b0b
GM
3080 (let (global)
3081 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3082 (if (consp local)
3083 (progn
3084 (if (eq (cdr local) 'global)
3085 ;; Copy the global value of the variable.
3086 (setq global (symbol-value (car local)))
3087 ;; Use the value from the list.
3088 (setq global (eval (cdr local))))
16409b0b 3089 (set (make-local-variable (car local)) global))
eec82323 3090 ;; Simple nil-valued local variable.
16409b0b 3091 (set (make-local-variable local) nil)))))
eec82323
LMI
3092
3093(defun gnus-summary-clear-local-variables ()
3094 (let ((locals gnus-summary-local-variables))
3095 (while locals
3096 (if (consp (car locals))
01c52d31 3097 (and (symbolp (caar locals))
eec82323 3098 (set (caar locals) nil))
01c52d31 3099 (and (symbolp (car locals))
eec82323
LMI
3100 (set (car locals) nil)))
3101 (setq locals (cdr locals)))))
3102
3103;; Summary data functions.
3104
3105(defmacro gnus-data-number (data)
3106 `(car ,data))
3107
3108(defmacro gnus-data-set-number (data number)
3109 `(setcar ,data ,number))
3110
3111(defmacro gnus-data-mark (data)
3112 `(nth 1 ,data))
3113
3114(defmacro gnus-data-set-mark (data mark)
3115 `(setcar (nthcdr 1 ,data) ,mark))
3116
3117(defmacro gnus-data-pos (data)
3118 `(nth 2 ,data))
3119
3120(defmacro gnus-data-set-pos (data pos)
3121 `(setcar (nthcdr 2 ,data) ,pos))
3122
3123(defmacro gnus-data-header (data)
3124 `(nth 3 ,data))
3125
3126(defmacro gnus-data-set-header (data header)
3127 `(setf (nth 3 ,data) ,header))
3128
3129(defmacro gnus-data-level (data)
3130 `(nth 4 ,data))
3131
3132(defmacro gnus-data-unread-p (data)
3133 `(= (nth 1 ,data) gnus-unread-mark))
3134
3135(defmacro gnus-data-read-p (data)
3136 `(/= (nth 1 ,data) gnus-unread-mark))
3137
3138(defmacro gnus-data-pseudo-p (data)
3139 `(consp (nth 3 ,data)))
3140
3141(defmacro gnus-data-find (number)
3142 `(assq ,number gnus-newsgroup-data))
3143
3144(defmacro gnus-data-find-list (number &optional data)
3145 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3146 (memq (assq ,number bdata)
3147 bdata)))
3148
3149(defmacro gnus-data-make (number mark pos header level)
3150 `(list ,number ,mark ,pos ,header ,level))
3151
3152(defun gnus-data-enter (after-article number mark pos header level offset)
3153 (let ((data (gnus-data-find-list after-article)))
3154 (unless data
3155 (error "No such article: %d" after-article))
3156 (setcdr data (cons (gnus-data-make number mark pos header level)
3157 (cdr data)))
3158 (setq gnus-newsgroup-data-reverse nil)
3159 (gnus-data-update-list (cddr data) offset)))
3160
3161(defun gnus-data-enter-list (after-article list &optional offset)
3162 (when list
3163 (let ((data (and after-article (gnus-data-find-list after-article)))
3164 (ilist list))
6748645f
LMI
3165 (if (not (or data
3166 after-article))
3167 (let ((odata gnus-newsgroup-data))
3168 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3169 (when offset
6748645f 3170 (gnus-data-update-list odata offset)))
01c52d31 3171 ;; Find the last element in the list to be spliced into the main
6748645f 3172 ;; list.
01c52d31 3173 (setq list (last list))
6748645f
LMI
3174 (if (not data)
3175 (progn
3176 (setcdr list gnus-newsgroup-data)
3177 (setq gnus-newsgroup-data ilist)
3178 (when offset
3179 (gnus-data-update-list (cdr list) offset)))
3180 (setcdr list (cdr data))
3181 (setcdr data ilist)
3182 (when offset
3183 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3184 (setq gnus-newsgroup-data-reverse nil))))
3185
3186(defun gnus-data-remove (article &optional offset)
3187 (let ((data gnus-newsgroup-data))
3188 (if (= (gnus-data-number (car data)) article)
3189 (progn
3190 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3191 gnus-newsgroup-data-reverse nil)
3192 (when offset
3193 (gnus-data-update-list gnus-newsgroup-data offset)))
3194 (while (cdr data)
3195 (when (= (gnus-data-number (cadr data)) article)
3196 (setcdr data (cddr data))
3197 (when offset
3198 (gnus-data-update-list (cdr data) offset))
3199 (setq data nil
3200 gnus-newsgroup-data-reverse nil))
3201 (setq data (cdr data))))))
3202
3203(defmacro gnus-data-list (backward)
3204 `(if ,backward
3205 (or gnus-newsgroup-data-reverse
3206 (setq gnus-newsgroup-data-reverse
3207 (reverse gnus-newsgroup-data)))
3208 gnus-newsgroup-data))
3209
3210(defun gnus-data-update-list (data offset)
3211 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3212 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3213 (while data
3214 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3215 (setq data (cdr data))))
3216
eec82323
LMI
3217(defun gnus-summary-article-pseudo-p (article)
3218 "Say whether this article is a pseudo article or not."
3219 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3220
3221(defmacro gnus-summary-article-sparse-p (article)
3222 "Say whether this article is a sparse article or not."
a8151ef7 3223 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3224
3225(defmacro gnus-summary-article-ancient-p (article)
3226 "Say whether this article is a sparse article or not."
3227 `(memq ,article gnus-newsgroup-ancient))
3228
3229(defun gnus-article-parent-p (number)
3230 "Say whether this article is a parent or not."
3231 (let ((data (gnus-data-find-list number)))
23f87bed 3232 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3233 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3234 (gnus-data-level (nth 1 data))))))
3235
3236(defun gnus-article-children (number)
3237 "Return a list of all children to NUMBER."
3238 (let* ((data (gnus-data-find-list number))
3239 (level (gnus-data-level (car data)))
3240 children)
3241 (setq data (cdr data))
3242 (while (and data
3243 (= (gnus-data-level (car data)) (1+ level)))
3244 (push (gnus-data-number (car data)) children)
3245 (setq data (cdr data)))
3246 children))
3247
3248(defmacro gnus-summary-skip-intangible ()
3249 "If the current article is intangible, then jump to a different article."
3250 '(let ((to (get-text-property (point) 'gnus-intangible)))
3251 (and to (gnus-summary-goto-subject to))))
3252
3253(defmacro gnus-summary-article-intangible-p ()
3254 "Say whether this article is intangible or not."
3255 '(get-text-property (point) 'gnus-intangible))
3256
3257(defun gnus-article-read-p (article)
3258 "Say whether ARTICLE is read or not."
3259 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3260 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3261 (memq article gnus-newsgroup-unreads)
3262 (memq article gnus-newsgroup-unselected)
3263 (memq article gnus-newsgroup-dormant))))
3264
3265;; Some summary mode macros.
3266
3267(defmacro gnus-summary-article-number ()
3268 "The article number of the article on the current line.
8f688cb0 3269If there isn't an article number here, then we return the current
eec82323
LMI
3270article number."
3271 '(progn
3272 (gnus-summary-skip-intangible)
3273 (or (get-text-property (point) 'gnus-number)
3274 (gnus-summary-last-subject))))
3275
3276(defmacro gnus-summary-article-header (&optional number)
6748645f 3277 "Return the header of article NUMBER."
eec82323
LMI
3278 `(gnus-data-header (gnus-data-find
3279 ,(or number '(gnus-summary-article-number)))))
3280
3281(defmacro gnus-summary-thread-level (&optional number)
6748645f 3282 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3283 `(if (and (eq gnus-summary-make-false-root 'dummy)
3284 (get-text-property (point) 'gnus-intangible))
3285 0
3286 (gnus-data-level (gnus-data-find
3287 ,(or number '(gnus-summary-article-number))))))
3288
3289(defmacro gnus-summary-article-mark (&optional number)
6748645f 3290 "Return the mark of article NUMBER."
eec82323
LMI
3291 `(gnus-data-mark (gnus-data-find
3292 ,(or number '(gnus-summary-article-number)))))
3293
3294(defmacro gnus-summary-article-pos (&optional number)
6748645f 3295 "Return the position of the line of article NUMBER."
eec82323
LMI
3296 `(gnus-data-pos (gnus-data-find
3297 ,(or number '(gnus-summary-article-number)))))
3298
3299(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3300(defmacro gnus-summary-article-subject (&optional number)
3301 "Return current subject string or nil if nothing."
3302 `(let ((headers
3303 ,(if number
3304 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3305 '(gnus-data-header (assq (gnus-summary-article-number)
3306 gnus-newsgroup-data)))))
3307 (and headers
3308 (vectorp headers)
3309 (mail-header-subject headers))))
3310
3311(defmacro gnus-summary-article-score (&optional number)
3312 "Return current article score."
3313 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3314 gnus-newsgroup-scored))
3315 gnus-summary-default-score 0))
3316
3317(defun gnus-summary-article-children (&optional number)
6748645f 3318 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3319 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3320 (level (gnus-data-level (car data)))
3321 l children)
3322 (while (and (setq data (cdr data))
3323 (> (setq l (gnus-data-level (car data))) level))
3324 (and (= (1+ level) l)
3325 (push (gnus-data-number (car data))
3326 children)))
3327 (nreverse children)))
3328
3329(defun gnus-summary-article-parent (&optional number)
6748645f 3330 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3331 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3332 (gnus-data-list t)))
3333 (level (gnus-data-level (car data))))
3334 (if (zerop level)
3335 () ; This is a root.
3336 ;; We search until we find an article with a level less than
3337 ;; this one. That function has to be the parent.
3338 (while (and (setq data (cdr data))
3339 (not (< (gnus-data-level (car data)) level))))
3340 (and data (gnus-data-number (car data))))))
3341
3342(defun gnus-unread-mark-p (mark)
3343 "Say whether MARK is the unread mark."
3344 (= mark gnus-unread-mark))
3345
3346(defun gnus-read-mark-p (mark)
3347 "Say whether MARK is one of the marks that mark as read.
3348This is all marks except unread, ticked, dormant, and expirable."
3349 (not (or (= mark gnus-unread-mark)
3350 (= mark gnus-ticked-mark)
23f87bed 3351 (= mark gnus-spam-mark)
eec82323
LMI
3352 (= mark gnus-dormant-mark)
3353 (= mark gnus-expirable-mark))))
3354
3355(defmacro gnus-article-mark (number)
6748645f
LMI
3356 "Return the MARK of article NUMBER.
3357This macro should only be used when computing the mark the \"first\"
3358time; i.e., when generating the summary lines. After that,
3359`gnus-summary-article-mark' should be used to examine the
3360marks of articles."
eec82323 3361 `(cond
6748645f 3362 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3363 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3364 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3365 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3366 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3367 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3368 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3369 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3370 gnus-ancient-mark))))
3371
3372;; Saving hidden threads.
3373
eec82323
LMI
3374(defmacro gnus-save-hidden-threads (&rest forms)
3375 "Save hidden threads, eval FORMS, and restore the hidden threads."
3376 (let ((config (make-symbol "config")))
3377 `(let ((,config (gnus-hidden-threads-configuration)))
3378 (unwind-protect
3379 (save-excursion
3380 ,@forms)
3381 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3382(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3383(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3384
107ecebb
AS
3385(defun gnus-data-compute-positions ()
3386 "Compute the positions of all articles."
3387 (setq gnus-newsgroup-data-reverse nil)
3388 (let ((data gnus-newsgroup-data))
3389 (save-excursion
3390 (gnus-save-hidden-threads
3391 (gnus-summary-show-all-threads)
3392 (goto-char (point-min))
3393 (while data
3394 (while (get-text-property (point) 'gnus-intangible)
3395 (forward-line 1))
3396 (gnus-data-set-pos (car data) (+ (point) 3))
3397 (setq data (cdr data))
3398 (forward-line 1))))))
3399
16409b0b
GM
3400(defun gnus-hidden-threads-configuration ()
3401 "Return the current hidden threads configuration."
3402 (save-excursion
3403 (let (config)
3404 (goto-char (point-min))
3405 (while (search-forward "\r" nil t)
3406 (push (1- (point)) config))
3407 config)))
3408
3409(defun gnus-restore-hidden-threads-configuration (config)
3410 "Restore hidden threads configuration from CONFIG."
3411 (save-excursion
c7a91ce1 3412 (let (point (inhibit-read-only t))
16409b0b
GM
3413 (while (setq point (pop config))
3414 (when (and (< point (point-max))
3415 (goto-char point)
3416 (eq (char-after) ?\n))
3417 (subst-char-in-region point (1+ point) ?\n ?\r))))))
3418
eec82323
LMI
3419;; Various summary mode internalish functions.
3420
3421(defun gnus-mouse-pick-article (e)
3422 (interactive "e")
3423 (mouse-set-point e)
3424 (gnus-summary-next-page nil t))
3425
3426(defun gnus-summary-set-display-table ()
16409b0b
GM
3427 "Change the display table.
3428Odd characters have a tendency to mess
3429up nicely formatted displays - we make all possible glyphs
3430display only a single character."
eec82323
LMI
3431
3432 ;; We start from the standard display table, if any.
3433 (let ((table (or (copy-sequence standard-display-table)
3434 (make-display-table)))
3435 (i 32))
3436 ;; Nix out all the control chars...
3437 (while (>= (setq i (1- i)) 0)
2b968687 3438 (gnus-put-display-table i [??] table))
23f87bed 3439 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3440 ;; selective display).
2b968687
MB
3441 (gnus-put-display-table ?\n nil table)
3442 (gnus-put-display-table ?\r nil table)
6748645f 3443 ;; We keep TAB as well.
2b968687 3444 (gnus-put-display-table ?\t nil table)
719120ef 3445 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3446 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3447 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3448 160
3449 256)))
eec82323
LMI
3450 (while (>= (setq i (1- i)) 127)
3451 ;; Only modify if the entry is nil.
2b968687
MB
3452 (unless (gnus-get-display-table i table)
3453 (gnus-put-display-table i [??] table))))
eec82323
LMI
3454 (setq buffer-display-table table)))
3455
23f87bed
MB
3456(defun gnus-summary-set-article-display-arrow (pos)
3457 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3458 (when gnus-summary-display-arrow
3459 (make-local-variable 'overlay-arrow-position)
3460 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3461 (save-excursion
3462 (goto-char pos)
3463 (beginning-of-line)
3464 (unless overlay-arrow-position
3465 (setq overlay-arrow-position (make-marker)))
3466 (setq overlay-arrow-string "=>"
3467 overlay-arrow-position (set-marker overlay-arrow-position
3468 (point)
3469 (current-buffer))))))
3470
eec82323
LMI
3471(defun gnus-summary-setup-buffer (group)
3472 "Initialize summary buffer."
23f87bed
MB
3473 (let ((buffer (gnus-summary-buffer-name group))
3474 (dead-name (concat "*Dead Summary "
3475 (gnus-group-decoded-name group) "*")))
3476 ;; If a dead summary buffer exists, we kill it.
3477 (when (gnus-buffer-live-p dead-name)
3478 (gnus-kill-buffer dead-name))
eec82323
LMI
3479 (if (get-buffer buffer)
3480 (progn
3481 (set-buffer buffer)
3482 (setq gnus-summary-buffer (current-buffer))
3483 (not gnus-newsgroup-prepared))
3484 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3485 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3486 (gnus-summary-mode group)
3487 (when gnus-carpal
3488 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3489 (when (gnus-group-quit-config group)
3490 (set (make-local-variable 'gnus-single-article-buffer) nil))
3491 (make-local-variable 'gnus-article-buffer)
3492 (make-local-variable 'gnus-article-current)
3493 (make-local-variable 'gnus-original-article-buffer)
eec82323 3494 (setq gnus-newsgroup-name group)
23f87bed
MB
3495 ;; Set any local variables in the group parameters.
3496 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3497 t)))
3498
3499(defun gnus-set-global-variables ()
16409b0b
GM
3500 "Set the global equivalents of the buffer-local variables.
3501They are set to the latest values they had. These reflect the summary
3502buffer that was in action when the last article was fetched."
eec82323
LMI
3503 (when (eq major-mode 'gnus-summary-mode)
3504 (setq gnus-summary-buffer (current-buffer))
3505 (let ((name gnus-newsgroup-name)
3506 (marked gnus-newsgroup-marked)
23f87bed 3507 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3508 (unread gnus-newsgroup-unreads)
3509 (headers gnus-current-headers)
3510 (data gnus-newsgroup-data)
3511 (summary gnus-summary-buffer)
3512 (article-buffer gnus-article-buffer)
3513 (original gnus-original-article-buffer)
3514 (gac gnus-article-current)
3515 (reffed gnus-reffed-article-number)
16409b0b 3516 (score-file gnus-current-score-file)
23f87bed
MB
3517 (default-charset gnus-newsgroup-charset)
3518 vlist)
3519 (let ((locals gnus-newsgroup-variables))
3520 (while locals
3521 (if (consp (car locals))
3522 (push (eval (caar locals)) vlist)
3523 (push (eval (car locals)) vlist))
3524 (setq locals (cdr locals)))
3525 (setq vlist (nreverse vlist)))
01c52d31 3526 (with-current-buffer gnus-group-buffer
6748645f
LMI
3527 (setq gnus-newsgroup-name name
3528 gnus-newsgroup-marked marked
23f87bed 3529 gnus-newsgroup-spam-marked spam
6748645f
LMI
3530 gnus-newsgroup-unreads unread
3531 gnus-current-headers headers
3532 gnus-newsgroup-data data
3533 gnus-article-current gac
3534 gnus-summary-buffer summary
3535 gnus-article-buffer article-buffer
3536 gnus-original-article-buffer original
3537 gnus-reffed-article-number reffed
16409b0b
GM
3538 gnus-current-score-file score-file
3539 gnus-newsgroup-charset default-charset)
23f87bed
MB
3540 (let ((locals gnus-newsgroup-variables))
3541 (while locals
3542 (if (consp (car locals))
3543 (set (caar locals) (pop vlist))
3544 (set (car locals) (pop vlist)))
3545 (setq locals (cdr locals))))
eec82323
LMI
3546 ;; The article buffer also has local variables.
3547 (when (gnus-buffer-live-p gnus-article-buffer)
3548 (set-buffer gnus-article-buffer)
3549 (setq gnus-summary-buffer summary))))))
3550
3551(defun gnus-summary-article-unread-p (article)
3552 "Say whether ARTICLE is unread or not."
3553 (memq article gnus-newsgroup-unreads))
3554
3555(defun gnus-summary-first-article-p (&optional article)
3556 "Return whether ARTICLE is the first article in the buffer."
3557 (if (not (setq article (or article (gnus-summary-article-number))))
3558 nil
3559 (eq article (caar gnus-newsgroup-data))))
3560
3561(defun gnus-summary-last-article-p (&optional article)
3562 "Return whether ARTICLE is the last article in the buffer."
3563 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3564 ;; All non-existent numbers are the last article. :-)
3565 t
eec82323
LMI
3566 (not (cdr (gnus-data-find-list article)))))
3567
4921bbdd
CY
3568(defun gnus-make-thread-indent-array (&optional n)
3569 (when (or n
3570 (progn (setq n 200) nil)
3571 (null gnus-thread-indent-array)
3572 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3573 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3574 gnus-thread-indent-array-level gnus-thread-indent-level)
3575 (while (>= n 0)
3576 (aset gnus-thread-indent-array n
6a30c01d 3577 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3578 (setq n (1- n)))))
eec82323
LMI
3579
3580(defun gnus-update-summary-mark-positions ()
3581 "Compute where the summary marks are to go."
3582 (save-excursion
6748645f 3583 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3584 (set-buffer gnus-summary-buffer))
5153a47a
MB
3585 (let ((spec gnus-summary-line-format-spec)
3586 pos)
eec82323
LMI
3587 (save-excursion
3588 (gnus-set-work-buffer)
5153a47a
MB
3589 (let ((gnus-tmp-unread ?Z)
3590 (gnus-replied-mark ?Z)
3591 (gnus-score-below-mark ?Z)
3592 (gnus-score-over-mark ?Z)
3593 (gnus-undownloaded-mark ?Z)
3594 (gnus-summary-line-format-spec spec)
54506618 3595 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3596 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3597 case-fold-search ignores)
3598 ;; Here, all marks are bound to Z.
3599 (gnus-summary-insert-line header
3600 0 nil t gnus-tmp-unread t nil "" nil 1)
3601 (goto-char (point-min))
3602 ;; Memorize the positions of the same characters as dummy marks.
3603 (while (re-search-forward "[A-D]" nil t)
3604 (push (point) ignores))
54506618 3605 (erase-buffer)
5153a47a
MB
3606 ;; We use A-D as dummy marks in order to know column positions
3607 ;; where marks should be inserted.
3608 (setq gnus-tmp-unread ?A
3609 gnus-replied-mark ?B
3610 gnus-score-below-mark ?C
3611 gnus-score-over-mark ?C
3612 gnus-undownloaded-mark ?D)
3613 (gnus-summary-insert-line header
3614 0 nil t gnus-tmp-unread t nil "" nil 1)
3615 ;; Ignore characters which aren't dummy marks.
3616 (dolist (p ignores)
3617 (delete-region (goto-char (1- p)) p)
3618 (insert ?Z))
eec82323 3619 (goto-char (point-min))
7c3bb5a5 3620 (setq pos (list (cons 'unread
5153a47a 3621 (and (search-forward "A" nil t)
7c3bb5a5 3622 (- (point) (point-min) 1)))))
eec82323 3623 (goto-char (point-min))
5153a47a 3624 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3625 (- (point) (point-min) 1)))
eec82323
LMI
3626 pos)
3627 (goto-char (point-min))
5153a47a 3628 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3629 (- (point) (point-min) 1)))
6748645f
LMI
3630 pos)
3631 (goto-char (point-min))
5153a47a 3632 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3633 (- (point) (point-min) 1)))
eec82323
LMI
3634 pos)))
3635 (setq gnus-summary-mark-positions pos))))
3636
3637(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3638 "Insert a dummy root in the summary buffer."
3639 (beginning-of-line)
3640 (gnus-add-text-properties
3641 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3642 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3643
23f87bed
MB
3644(defun gnus-summary-extract-address-component (from)
3645 (or (car (funcall gnus-extract-address-components from))
3646 from))
3647
3648(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3649 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3650 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3651 ; Is it really necessary to do this next part for each summary line?
3652 ; Luckily, doesn't seem to slow things down much.
16409b0b 3653 (mail-parse-ignored-charsets
01c52d31
MB
3654 (with-current-buffer gnus-summary-buffer
3655 gnus-newsgroup-ignored-charsets)))
23f87bed 3656 (or
01c52d31
MB
3657 (and ignored-from-addresses
3658 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3659 (let ((extra-headers (mail-header-extra header))
3660 to
3661 newsgroups)
3662 (cond
3663 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3664 (concat gnus-summary-to-prefix
23f87bed
MB
3665 (inline
3666 (gnus-summary-extract-address-component
343d6628 3667 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3668 ((setq newsgroups
3669 (or
3670 (cdr (assq 'Newsgroups extra-headers))
3671 (and
3672 (memq 'Newsgroups gnus-extra-headers)
3673 (eq (car (gnus-find-method-for-group
3674 gnus-newsgroup-name)) 'nntp)
3675 (gnus-group-real-name gnus-newsgroup-name))))
3676 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3677 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3678
eec82323
LMI
3679(defun gnus-summary-insert-line (gnus-tmp-header
3680 gnus-tmp-level gnus-tmp-current
23f87bed 3681 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3682 gnus-tmp-expirable gnus-tmp-subject-or-nil
3683 &optional gnus-tmp-dummy gnus-tmp-score
3684 gnus-tmp-process)
4921bbdd
CY
3685 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3686 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3687 gnus-tmp-level)))
eec82323
LMI
3688 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3689 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3690 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3691 (gnus-tmp-score-char
3692 (if (or (null gnus-summary-default-score)
3693 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3694 gnus-summary-zcore-fuzz))
23f87bed 3695 ? ;Whitespace
eec82323
LMI
3696 (if (< gnus-tmp-score gnus-summary-default-score)
3697 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3698 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3699 (gnus-tmp-replied
3700 (cond (gnus-tmp-process gnus-process-mark)
3701 ((memq gnus-tmp-current gnus-newsgroup-cached)
3702 gnus-cached-mark)
3703 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3704 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3705 gnus-forwarded-mark)
eec82323
LMI
3706 ((memq gnus-tmp-current gnus-newsgroup-saved)
3707 gnus-saved-mark)
23f87bed
MB
3708 ((memq gnus-tmp-number gnus-newsgroup-recent)
3709 gnus-recent-mark)
3710 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3711 gnus-unseen-mark)
3712 (t gnus-no-mark)))
3713 (gnus-tmp-downloaded
3714 (cond (undownloaded
3715 gnus-undownloaded-mark)
3716 (gnus-newsgroup-agentized
3717 gnus-downloaded-mark)
3718 (t
3719 gnus-no-mark)))
eec82323
LMI
3720 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3721 (gnus-tmp-name
3722 (cond
3723 ((string-match "<[^>]+> *$" gnus-tmp-from)
3724 (let ((beg (match-beginning 0)))
23f87bed
MB
3725 (or (and (string-match "^\".+\"" gnus-tmp-from)
3726 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3727 (substring gnus-tmp-from 0 beg))))
3728 ((string-match "(.+)" gnus-tmp-from)
3729 (substring gnus-tmp-from
3730 (1+ (match-beginning 0)) (1- (match-end 0))))
3731 (t gnus-tmp-from)))
3732 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3733 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3734 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3735 (inhibit-read-only t))
eec82323
LMI
3736 (when (string= gnus-tmp-name "")
3737 (setq gnus-tmp-name gnus-tmp-from))
3738 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3739 (setq gnus-tmp-lines -1))
3740 (if (= gnus-tmp-lines -1)
3741 (setq gnus-tmp-lines "?")
3742 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3743 (condition-case ()
3744 (gnus-put-text-property
3745 (point)
3746 (progn (eval gnus-summary-line-format-spec) (point))
3747 'gnus-number gnus-tmp-number)
3748 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3749 (when (gnus-visual-p 'summary-highlight 'highlight)
3750 (forward-line -1)
6748645f 3751 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3752 (forward-line 1))))
3753
3754(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3755 "Update summary line after change."
eec82323
LMI
3756 (when (and gnus-summary-default-score
3757 (not gnus-summary-inhibit-highlight))
3758 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3759 (article (gnus-summary-article-number))
3760 (score (gnus-summary-article-score article)))
3761 (unless dont-update
3762 (if (and gnus-summary-mark-below
3763 (< (gnus-summary-article-score)
3764 gnus-summary-mark-below))
3765 ;; This article has a low score, so we mark it as read.
3766 (when (memq article gnus-newsgroup-unreads)
3767 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3768 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3769 ;; This article was previously marked as read on account
3770 ;; of a low score, but now it has risen, so we mark it as
3771 ;; unread.
3772 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3773 (gnus-summary-update-mark
3774 (if (or (null gnus-summary-default-score)
3775 (<= (abs (- score gnus-summary-default-score))
3776 gnus-summary-zcore-fuzz))
23f87bed 3777 ? ;Whitespace
eec82323
LMI
3778 (if (< score gnus-summary-default-score)
3779 gnus-score-below-mark gnus-score-over-mark))
3780 'score))
3781 ;; Do visual highlighting.
3782 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3783 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3784
3785(defvar gnus-tmp-new-adopts nil)
3786
3787(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3788 "Return the number of articles in THREAD.
3789This may be 0 in some cases -- if none of the articles in
3790the thread are to be displayed."
3791 (let* ((number
23f87bed 3792 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3793 (cond
3794 ((not (listp thread))
3795 1)
3796 ((and (consp thread) (cdr thread))
3797 (apply
3798 '+ 1 (mapcar
3799 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3800 ((null thread)
3801 1)
3802 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3803 1)
3804 (t 0))))
3805 (when (and level (zerop level) gnus-tmp-new-adopts)
3806 (incf number
3807 (apply '+ (mapcar
3808 'gnus-summary-number-of-articles-in-thread
3809 gnus-tmp-new-adopts))))
3810 (if char
3811 (if (> number 1) gnus-not-empty-thread-mark
3812 gnus-empty-thread-mark)
3813 number)))
3814
23f87bed
MB
3815(defsubst gnus-summary-line-message-size (head)
3816 "Return pretty-printed version of message size.
3817This function is intended to be used in
3818`gnus-summary-line-format-alist'."
3819 (let ((c (or (mail-header-chars head) -1)))
3820 (cond ((< c 0) "n/a") ; chars not available
3821 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3822 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3823 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3824 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3825
3826
eec82323
LMI
3827(defun gnus-summary-set-local-parameters (group)
3828 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3829 (let ((vars '(quit-config))) ; Ignore quit-config.
3830 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3831 (and (consp elem) ; Has to be a cons.
3832 (consp (cdr elem)) ; The cdr has to be a list.
3833 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3834 (not (memq (car elem) vars))
e3e955fe 3835 (ignore-errors
23f87bed 3836 (push (car elem) vars)
e3e955fe
MB
3837 ;; Variables like `gnus-show-threads' that are globally
3838 ;; bound, if used as group parameters, need to get to be
3839 ;; buffer-local, whereas just parameters like `gcc-self',
3840 ;; `timestamp', etc. should not be bound as variables.
3841 (if (boundp (car elem))
3842 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3843 (eval (nth 1 elem))))))))
eec82323
LMI
3844
3845(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3846 kill-buffer no-display backward
3847 select-articles)
eec82323
LMI
3848 "Start reading news in newsgroup GROUP.
3849If SHOW-ALL is non-nil, already read articles are also listed.
3850If NO-ARTICLE is non-nil, no article is selected initially.
3851If NO-DISPLAY, don't generate a summary buffer."
3852 (let (result)
3853 (while (and group
3854 (null (setq result
3855 (let ((gnus-auto-select-next nil))
6748645f
LMI
3856 (or (gnus-summary-read-group-1
3857 group show-all no-article
3858 kill-buffer no-display
3859 select-articles)
3860 (setq show-all nil
16409b0b 3861 select-articles nil)))))
eec82323
LMI
3862 (eq gnus-auto-select-next 'quietly))
3863 (set-buffer gnus-group-buffer)
6748645f
LMI
3864 ;; The entry function called above goes to the next
3865 ;; group automatically, so we go two groups back
3866 ;; if we are searching for the previous group.
3867 (when backward
3868 (gnus-group-prev-unread-group 2))
eec82323
LMI
3869 (if (not (equal group (gnus-group-group-name)))
3870 (setq group (gnus-group-group-name))
3871 (setq group nil)))
3872 result))
3873
3874(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3875 kill-buffer no-display
3876 &optional select-articles)
eec82323 3877 ;; Killed foreign groups can't be entered.
23f87bed
MB
3878 ;; (when (and (not (gnus-group-native-p group))
3879 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3880 ;; (error "Dead non-native groups can't be entered"))
3881 (gnus-message 5 "Retrieving newsgroup: %s..."
3882 (gnus-group-decoded-name group))
eec82323
LMI
3883 (let* ((new-group (gnus-summary-setup-buffer group))
3884 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3885 (did-select (and new-group (gnus-select-newsgroup
3886 group show-all select-articles))))
eec82323
LMI
3887 (cond
3888 ;; This summary buffer exists already, so we just select it.
3889 ((not new-group)
3890 (gnus-set-global-variables)
3891 (when kill-buffer
3892 (gnus-kill-or-deaden-summary kill-buffer))
3893 (gnus-configure-windows 'summary 'force)
3894 (gnus-set-mode-line 'summary)
3895 (gnus-summary-position-point)
3896 (message "")
3897 t)
3898 ;; We couldn't select this group.
3899 ((null did-select)
3900 (when (and (eq major-mode 'gnus-summary-mode)
3901 (not (equal (current-buffer) kill-buffer)))
3902 (kill-buffer (current-buffer))
3903 (if (not quit-config)
3904 (progn
6748645f
LMI
3905 ;; Update the info -- marks might need to be removed,
3906 ;; for instance.
3907 (gnus-summary-update-info)
eec82323
LMI
3908 (set-buffer gnus-group-buffer)
3909 (gnus-group-jump-to-group group)
3910 (gnus-group-next-unread-group 1))
3911 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3912 (let ((grpinfo (gnus-get-info group)))
3913 (if (null (gnus-info-read grpinfo))
3914 (gnus-message 3 "Group %s contains no messages"
3915 (gnus-group-decoded-name group))
3916 (gnus-message 3 "Can't select group")))
eec82323
LMI
3917 nil)
3918 ;; The user did a `C-g' while prompting for number of articles,
3919 ;; so we exit this group.
3920 ((eq did-select 'quit)
3921 (and (eq major-mode 'gnus-summary-mode)
3922 (not (equal (current-buffer) kill-buffer))
3923 (kill-buffer (current-buffer)))
3924 (when kill-buffer
3925 (gnus-kill-or-deaden-summary kill-buffer))
3926 (if (not quit-config)
3927 (progn
3928 (set-buffer gnus-group-buffer)
3929 (gnus-group-jump-to-group group)
3930 (gnus-group-next-unread-group 1)
3931 (gnus-configure-windows 'group 'force))
3932 (gnus-handle-ephemeral-exit quit-config))
3933 ;; Finally signal the quit.
3934 (signal 'quit nil))
3935 ;; The group was successfully selected.
3936 (t
3937 (gnus-set-global-variables)
3938 ;; Save the active value in effect when the group was entered.
3939 (setq gnus-newsgroup-active
3940 (gnus-copy-sequence
3941 (gnus-active gnus-newsgroup-name)))
3942 ;; You can change the summary buffer in some way with this hook.
6748645f 3943 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3944 (when (memq 'summary (gnus-update-format-specifications
3945 nil 'summary 'summary-mode 'summary-dummy))
3946 ;; The format specification for the summary line was updated,
3947 ;; so we need to update the mark positions as well.
3948 (gnus-update-summary-mark-positions))
eec82323
LMI
3949 ;; Do score processing.
3950 (when gnus-use-scoring
3951 (gnus-possibly-score-headers))
3952 ;; Check whether to fill in the gaps in the threads.
3953 (when gnus-build-sparse-threads
3954 (gnus-build-sparse-threads))
3955 ;; Find the initial limit.
26c9afc3
MB
3956 (if show-all
3957 (let ((gnus-newsgroup-dormant nil))
eec82323 3958 (gnus-summary-initial-limit show-all))
26c9afc3 3959 (gnus-summary-initial-limit show-all))
eec82323
LMI
3960 ;; Generate the summary buffer.
3961 (unless no-display
3962 (gnus-summary-prepare))
3963 (when gnus-use-trees
3964 (gnus-tree-open group)
3965 (setq gnus-summary-highlight-line-function
3966 'gnus-tree-highlight-article))
3967 ;; If the summary buffer is empty, but there are some low-scored
3968 ;; articles or some excluded dormants, we include these in the
3969 ;; buffer.
3970 (when (and (zerop (buffer-size))
3971 (not no-display))
3972 (cond (gnus-newsgroup-dormant
3973 (gnus-summary-limit-include-dormant))
3974 ((and gnus-newsgroup-scored show-all)
3975 (gnus-summary-limit-include-expunged t))))
3976 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3977 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3978 (if (and (zerop (buffer-size))
3979 (not no-display))
3980 (progn
3981 ;; This newsgroup is empty.
3982 (gnus-summary-catchup-and-exit nil t)
3983 (gnus-message 6 "No unread news")
3984 (when kill-buffer
3985 (gnus-kill-or-deaden-summary kill-buffer))
3986 ;; Return nil from this function.
3987 nil)
3988 ;; Hide conversation thread subtrees. We cannot do this in
3989 ;; gnus-summary-prepare-hook since kill processing may not
3990 ;; work with hidden articles.
23f87bed 3991 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3992 (when kill-buffer
3993 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3994 (gnus-summary-auto-select-subject)
eec82323
LMI
3995 ;; Show first unread article if requested.
3996 (if (and (not no-article)
3997 (not no-display)
3998 gnus-newsgroup-unreads
3999 gnus-auto-select-first)
16409b0b
GM
4000 (progn
4001 (gnus-configure-windows 'summary)
23f87bed
MB
4002 (let ((art (gnus-summary-article-number)))
4003 (unless (and (not gnus-plugged)
4004 (or (memq art gnus-newsgroup-undownloaded)
4005 (memq art gnus-newsgroup-downloadable)))
4006 (gnus-summary-goto-article art))))
4007 ;; Don't select any articles.
eec82323 4008 (gnus-summary-position-point)
6748645f
LMI
4009 (gnus-configure-windows 'summary 'force)
4010 (gnus-set-mode-line 'summary))
23f87bed
MB
4011 (when (and gnus-auto-center-group
4012 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4013 ;; Gotta use windows, because recenter does weird stuff if
4014 ;; the current buffer ain't the displayed window.
4015 (let ((owin (selected-window)))
4016 (select-window (get-buffer-window gnus-group-buffer t))
4017 (when (gnus-group-goto-group group)
4018 (recenter))
4019 (select-window owin)))
4020 ;; Mark this buffer as "prepared".
4021 (setq gnus-newsgroup-prepared t)
6748645f 4022 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4023 (unless (gnus-ephemeral-group-p group)
4024 (gnus-group-update-group group))
eec82323
LMI
4025 t)))))
4026
23f87bed
MB
4027(defun gnus-summary-auto-select-subject ()
4028 "Select the subject line on initial group entry."
4029 (goto-char (point-min))
4030 (cond
4031 ((eq gnus-auto-select-subject 'best)
4032 (gnus-summary-best-unread-subject))
4033 ((eq gnus-auto-select-subject 'unread)
4034 (gnus-summary-first-unread-subject))
4035 ((eq gnus-auto-select-subject 'unseen)
4036 (gnus-summary-first-unseen-subject))
4037 ((eq gnus-auto-select-subject 'unseen-or-unread)
4038 (gnus-summary-first-unseen-or-unread-subject))
4039 ((eq gnus-auto-select-subject 'first)
4040 ;; Do nothing.
4041 )
4042 ((functionp gnus-auto-select-subject)
4043 (funcall gnus-auto-select-subject))))
4044
eec82323
LMI
4045(defun gnus-summary-prepare ()
4046 "Generate the summary buffer."
4047 (interactive)
c7a91ce1 4048 (let ((inhibit-read-only t))
eec82323
LMI
4049 (erase-buffer)
4050 (setq gnus-newsgroup-data nil
4051 gnus-newsgroup-data-reverse nil)
6748645f 4052 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4053 ;; Generate the buffer, either with threads or without.
4054 (when gnus-newsgroup-headers
4055 (gnus-summary-prepare-threads
4056 (if gnus-show-threads
4057 (gnus-sort-gathered-threads
4058 (funcall gnus-summary-thread-gathering-function
4059 (gnus-sort-threads
4060 (gnus-cut-threads (gnus-make-threads)))))
4061 ;; Unthreaded display.
4062 (gnus-sort-articles gnus-newsgroup-headers))))
4063 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4064 ;; Call hooks for modifying summary buffer.
4065 (goto-char (point-min))
6748645f 4066 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4067
4068(defsubst gnus-general-simplify-subject (subject)
23f87bed 4069 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4070 (setq subject
4071 (cond
4072 ;; Truncate the subject.
6748645f
LMI
4073 (gnus-simplify-subject-functions
4074 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4075 ((numberp gnus-summary-gather-subject-limit)
4076 (setq subject (gnus-simplify-subject-re subject))
4077 (if (> (length subject) gnus-summary-gather-subject-limit)
4078 (substring subject 0 gnus-summary-gather-subject-limit)
4079 subject))
4080 ;; Fuzzily simplify it.
4081 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4082 (gnus-simplify-subject-fuzzy subject))
4083 ;; Just remove the leading "Re:".
4084 (t
4085 (gnus-simplify-subject-re subject))))
4086
4087 (if (and gnus-summary-gather-exclude-subject
4088 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4089 nil ; This article shouldn't be gathered
eec82323
LMI
4090 subject))
4091
4092(defun gnus-summary-simplify-subject-query ()
4093 "Query where the respool algorithm would put this article."
4094 (interactive)
eec82323 4095 (gnus-summary-select-article)
274f1353 4096 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4097
4098(defun gnus-gather-threads-by-subject (threads)
4099 "Gather threads by looking at Subject headers."
4100 (if (not gnus-summary-make-false-root)
4101 threads
4102 (let ((hashtb (gnus-make-hashtable 1024))
4103 (prev threads)
4104 (result threads)
4105 subject hthread whole-subject)
4106 (while threads
4107 (setq subject (gnus-general-simplify-subject
4108 (setq whole-subject (mail-header-subject
4109 (caar threads)))))
4110 (when subject
4111 (if (setq hthread (gnus-gethash subject hashtb))
4112 (progn
4113 ;; We enter a dummy root into the thread, if we
4114 ;; haven't done that already.
4115 (unless (stringp (caar hthread))
4116 (setcar hthread (list whole-subject (car hthread))))
4117 ;; We add this new gathered thread to this gathered
4118 ;; thread.
4119 (setcdr (car hthread)
4120 (nconc (cdar hthread) (list (car threads))))
4121 ;; Remove it from the list of threads.
4122 (setcdr prev (cdr threads))
4123 (setq threads prev))
4124 ;; Enter this thread into the hash table.
23f87bed
MB
4125 (gnus-sethash subject
4126 (if gnus-summary-make-false-root-always
4127 (progn
4128 ;; If you want a dummy root above all
4129 ;; threads...
4130 (setcar threads (list whole-subject
4131 (car threads)))
4132 threads)
4133 threads)
4134 hashtb)))
eec82323
LMI
4135 (setq prev threads)
4136 (setq threads (cdr threads)))
4137 result)))
4138
4139(defun gnus-gather-threads-by-references (threads)
4140 "Gather threads by looking at References headers."
4141 (let ((idhashtb (gnus-make-hashtable 1024))
4142 (thhashtb (gnus-make-hashtable 1024))
4143 (prev threads)
4144 (result threads)
4145 ids references id gthread gid entered ref)
4146 (while threads
4147 (when (setq references (mail-header-references (caar threads)))
4148 (setq id (mail-header-id (caar threads))
23f87bed 4149 ids (inline (gnus-split-references references))
eec82323
LMI
4150 entered nil)
4151 (while (setq ref (pop ids))
4152 (setq ids (delete ref ids))
4153 (if (not (setq gid (gnus-gethash ref idhashtb)))
4154 (progn
4155 (gnus-sethash ref id idhashtb)
4156 (gnus-sethash id threads thhashtb))
4157 (setq gthread (gnus-gethash gid thhashtb))
4158 (unless entered
4159 ;; We enter a dummy root into the thread, if we
4160 ;; haven't done that already.
4161 (unless (stringp (caar gthread))
4162 (setcar gthread (list (mail-header-subject (caar gthread))
4163 (car gthread))))
4164 ;; We add this new gathered thread to this gathered
4165 ;; thread.
4166 (setcdr (car gthread)
4167 (nconc (cdar gthread) (list (car threads)))))
4168 ;; Add it into the thread hash table.
4169 (gnus-sethash id gthread thhashtb)
4170 (setq entered t)
4171 ;; Remove it from the list of threads.
4172 (setcdr prev (cdr threads))
4173 (setq threads prev))))
4174 (setq prev threads)
4175 (setq threads (cdr threads)))
4176 result))
4177
4178(defun gnus-sort-gathered-threads (threads)
16409b0b 4179 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4180 (let ((result threads))
4181 (while threads
4182 (when (stringp (caar threads))
4183 (setcdr (car threads)
16409b0b 4184 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4185 (setq threads (cdr threads)))
4186 result))
4187
4188(defun gnus-thread-loop-p (root thread)
4189 "Say whether ROOT is in THREAD."
4190 (let ((stack (list thread))
4191 (infloop 0)
4192 th)
4193 (while (setq thread (pop stack))
4194 (setq th (cdr thread))
4195 (while (and th
4196 (not (eq (caar th) root)))
4197 (pop th))
4198 (if th
4199 ;; We have found a loop.
4200 (let (ref-dep)
4201 (setcdr thread (delq (car th) (cdr thread)))
4202 (if (boundp (setq ref-dep (intern "none"
4203 gnus-newsgroup-dependencies)))
4204 (setcdr (symbol-value ref-dep)
4205 (nconc (cdr (symbol-value ref-dep))
4206 (list (car th))))
4207 (set ref-dep (list nil (car th))))
4208 (setq infloop 1
4209 stack nil))
4210 ;; Push all the subthreads onto the stack.
4211 (push (cdr thread) stack)))
4212 infloop))
4213
4214(defun gnus-make-threads ()
01ccbb85 4215 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4216 (let (threads)
4217 (while (catch 'infloop
4218 (mapatoms
4219 (lambda (refs)
4220 ;; Deal with self-referencing References loops.
4221 (when (and (car (symbol-value refs))
4222 (not (zerop
4223 (apply
4224 '+
4225 (mapcar
4226 (lambda (thread)
4227 (gnus-thread-loop-p
4228 (car (symbol-value refs)) thread))
4229 (cdr (symbol-value refs)))))))
4230 (setq threads nil)
4231 (throw 'infloop t))
4232 (unless (car (symbol-value refs))
23f87bed
MB
4233 ;; These threads do not refer back to any other
4234 ;; articles, so they're roots.
eec82323
LMI
4235 (setq threads (append (cdr (symbol-value refs)) threads))))
4236 gnus-newsgroup-dependencies)))
4237 threads))
4238
6748645f 4239;; Build the thread tree.
16409b0b 4240(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4241 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4242
4243If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4244if it was already present.
4245
4246If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4247will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4248Message-IDs will be renamed to a unique Message-ID before being
4249entered.
6748645f
LMI
4250
4251Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4252 (let* ((id (mail-header-id header))
4253 (id-dep (and id (intern id dependencies)))
23f87bed 4254 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4255 ;; Enter this `header' in the `dependencies' table.
4256 (cond
4257 ((not id-dep)
4258 (setq header nil))
4259 ;; The first two cases do the normal part: enter a new `header'
4260 ;; in the `dependencies' table.
4261 ((not (boundp id-dep))
4262 (set id-dep (list header)))
4263 ((null (car (symbol-value id-dep)))
4264 (setcar (symbol-value id-dep) header))
4265
4266 ;; From here the `header' was already present in the
4267 ;; `dependencies' table.
4268 (force-new
4269 ;; Overrides an existing entry;
4270 ;; just set the header part of the entry.
23f87bed
MB
4271 (setcar (symbol-value id-dep) header)
4272 (setq replaced t))
6748645f
LMI
4273
4274 ;; Renames the existing `header' to a unique Message-ID.
4275 ((not gnus-summary-ignore-duplicates)
4276 ;; An article with this Message-ID has already been seen.
4277 ;; We rename the Message-ID.
4278 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4279 (list header))
4280 (mail-header-set-id header id))
4281
4282 ;; The last case ignores an existing entry, except it adds any
4283 ;; additional Xrefs (in case the two articles came from different
4284 ;; servers.
4285 ;; Also sets `header' to `nil' meaning that the `dependencies'
4286 ;; table was *not* modified.
4287 (t
4288 (mail-header-set-xref
4289 (car (symbol-value id-dep))
4290 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4291 "")
4292 (or (mail-header-xref header) "")))
4293 (setq header nil)))
4294
23f87bed
MB
4295 (when (and header (not replaced))
4296 ;; First check that we are not creating a References loop.
4297 (setq parent-id (gnus-parent-id (mail-header-references header)))
4298 (setq ref parent-id)
6748645f
LMI
4299 (while (and ref
4300 (setq ref-dep (intern-soft ref dependencies))
4301 (boundp ref-dep)
4302 (setq ref-header (car (symbol-value ref-dep))))
4303 (if (string= id ref)
4304 ;; Yuk! This is a reference loop. Make the article be a
4305 ;; root article.
4306 (progn
4307 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4308 (setq ref nil)
4309 (setq parent-id nil))
6748645f 4310 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4311 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4312 (if (boundp ref-dep)
4313 (setcdr (symbol-value ref-dep)
4314 (nconc (cdr (symbol-value ref-dep))
4315 (list (symbol-value id-dep))))
4316 (set ref-dep (list nil (symbol-value id-dep)))))
4317 header))
4318
23f87bed
MB
4319(defun gnus-extract-message-id-from-in-reply-to (string)
4320 (if (string-match "<[^>]+>" string)
4321 (substring string (match-beginning 0) (match-end 0))
4322 nil))
4323
eec82323
LMI
4324(defun gnus-build-sparse-threads ()
4325 (let ((headers gnus-newsgroup-headers)
16409b0b 4326 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4327 (gnus-summary-ignore-duplicates t)
eec82323 4328 header references generation relations
6748645f 4329 subject child end new-child date)
eec82323
LMI
4330 ;; First we create an alist of generations/relations, where
4331 ;; generations is how much we trust the relation, and the relation
4332 ;; is parent/child.
4333 (gnus-message 7 "Making sparse threads...")
4334 (save-excursion
4335 (nnheader-set-temp-buffer " *gnus sparse threads*")
4336 (while (setq header (pop headers))
4337 (when (and (setq references (mail-header-references header))
4338 (not (string= references "")))
4339 (insert references)
4340 (setq child (mail-header-id header)
6748645f
LMI
4341 subject (mail-header-subject header)
4342 date (mail-header-date header)
4343 generation 0)
eec82323
LMI
4344 (while (search-backward ">" nil t)
4345 (setq end (1+ (point)))
4346 (when (search-backward "<" nil t)
6748645f 4347 (setq new-child (buffer-substring (point) end))
eec82323 4348 (push (list (incf generation)
6748645f
LMI
4349 child (setq child new-child)
4350 subject date)
eec82323 4351 relations)))
6748645f
LMI
4352 (when child
4353 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4354 (erase-buffer)))
4355 (kill-buffer (current-buffer)))
4356 ;; Sort over trustworthiness.
01c52d31
MB
4357 (dolist (relation (sort relations 'car-less-than-car))
4358 (when (gnus-dependencies-add-header
4359 (make-full-mail-header
4360 gnus-reffed-article-number
4361 (nth 3 relation) "" (or (nth 4 relation) "")
4362 (nth 1 relation)
4363 (or (nth 2 relation) "") 0 0 "")
4364 gnus-newsgroup-dependencies nil)
4365 (push gnus-reffed-article-number gnus-newsgroup-limit)
4366 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4367 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4368 gnus-newsgroup-reads)
4369 (decf gnus-reffed-article-number)))
eec82323
LMI
4370 (gnus-message 7 "Making sparse threads...done")))
4371
4372(defun gnus-build-old-threads ()
4373 ;; Look at all the articles that refer back to old articles, and
4374 ;; fetch the headers for the articles that aren't there. This will
4375 ;; build complete threads - if the roots haven't been expired by the
4376 ;; server, that is.
16409b0b
GM
4377 (let ((mail-parse-charset gnus-newsgroup-charset)
4378 id heads)
eec82323
LMI
4379 (mapatoms
4380 (lambda (refs)
4381 (when (not (car (symbol-value refs)))
4382 (setq heads (cdr (symbol-value refs)))
4383 (while heads
4384 (if (memq (mail-header-number (caar heads))
4385 gnus-newsgroup-dormant)
4386 (setq heads (cdr heads))
4387 (setq id (symbol-name refs))
4388 (while (and (setq id (gnus-build-get-header id))
6748645f 4389 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4390 (setq heads nil)))))
4391 gnus-newsgroup-dependencies)))
4392
23f87bed
MB
4393(defsubst gnus-remove-odd-characters (string)
4394 "Translate STRING into something that doesn't contain weird characters."
4395 (mm-subst-char-in-string
4396 ?\r ?\-
01c52d31 4397 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4398
6748645f
LMI
4399;; This function has to be called with point after the article number
4400;; on the beginning of the line.
4401(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4402 (let ((eol (point-at-eol))
6748645f 4403 (buffer (current-buffer))
23f87bed 4404 header references in-reply-to)
6748645f
LMI
4405
4406 ;; overview: [num subject from date id refs chars lines misc]
4407 (unwind-protect
23f87bed 4408 (let (x)
6748645f
LMI
4409 (narrow-to-region (point) eol)
4410 (unless (eobp)
4411 (forward-char))
4412
4413 (setq header
4414 (make-full-mail-header
4415 number ; number
23f87bed
MB
4416 (condition-case () ; subject
4417 (gnus-remove-odd-characters
4418 (funcall gnus-decode-encoded-word-function
4419 (setq x (nnheader-nov-field))))
4420 (error x))
4421 (condition-case () ; from
4422 (gnus-remove-odd-characters
343d6628 4423 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4424 (setq x (nnheader-nov-field))))
4425 (error x))
16409b0b 4426 (nnheader-nov-field) ; date
01c52d31 4427 (nnheader-nov-read-message-id number) ; id
23f87bed 4428 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4429 (nnheader-nov-read-integer) ; chars
4430 (nnheader-nov-read-integer) ; lines
4431 (unless (eobp)
8b93df01
DL
4432 (if (looking-at "Xref: ")
4433 (goto-char (match-end 0)))
4434 (nnheader-nov-field)) ; Xref
16409b0b 4435 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4436
4437 (widen))
4438
23f87bed
MB
4439 (when (and (string= references "")
4440 (setq in-reply-to (mail-header-extra header))
4441 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4442 (mail-header-set-references
4443 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4444
6748645f
LMI
4445 (when gnus-alter-header-function
4446 (funcall gnus-alter-header-function header))
4447 (gnus-dependencies-add-header header dependencies force-new)))
4448
eec82323 4449(defun gnus-build-get-header (id)
16409b0b
GM
4450 "Look through the buffer of NOV lines and find the header to ID.
4451Enter this line into the dependencies hash table, and return
4452the id of the parent article (if any)."
eec82323
LMI
4453 (let ((deps gnus-newsgroup-dependencies)
4454 found header)
4455 (prog1
c7a91ce1 4456 (with-current-buffer nntp-server-buffer
eec82323
LMI
4457 (let ((case-fold-search nil))
4458 (goto-char (point-min))
4459 (while (and (not found)
4460 (search-forward id nil t))
4461 (beginning-of-line)
4462 (setq found (looking-at
4463 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4464 (regexp-quote id))))
4465 (or found (beginning-of-line 2)))
4466 (when found
4467 (beginning-of-line)
4468 (and
4469 (setq header (gnus-nov-parse-line
4470 (read (current-buffer)) deps))
4471 (gnus-parent-id (mail-header-references header))))))
4472 (when header
4473 (let ((number (mail-header-number header)))
4474 (push number gnus-newsgroup-limit)
4475 (push header gnus-newsgroup-headers)
4476 (if (memq number gnus-newsgroup-unselected)
4477 (progn
23f87bed
MB
4478 (setq gnus-newsgroup-unreads
4479 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4480 number))
eec82323
LMI
4481 (setq gnus-newsgroup-unselected
4482 (delq number gnus-newsgroup-unselected)))
4483 (push number gnus-newsgroup-ancient)))))))
4484
6748645f
LMI
4485(defun gnus-build-all-threads ()
4486 "Read all the headers."
4487 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4488 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4489 (dependencies gnus-newsgroup-dependencies)
4490 header article)
c7a91ce1 4491 (with-current-buffer nntp-server-buffer
6748645f
LMI
4492 (let ((case-fold-search nil))
4493 (goto-char (point-min))
4494 (while (not (eobp))
4495 (ignore-errors
4496 (setq article (read (current-buffer))
16409b0b 4497 header (gnus-nov-parse-line article dependencies)))
6748645f 4498 (when header
01c52d31 4499 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4500 (push header gnus-newsgroup-headers)
4501 (if (memq (setq article (mail-header-number header))
4502 gnus-newsgroup-unselected)
4503 (progn
23f87bed
MB
4504 (setq gnus-newsgroup-unreads
4505 (gnus-add-to-sorted-list
4506 gnus-newsgroup-unreads article))
6748645f
LMI
4507 (setq gnus-newsgroup-unselected
4508 (delq article gnus-newsgroup-unselected)))
4509 (push article gnus-newsgroup-ancient)))
4510 (forward-line 1)))))))
4511
eec82323 4512(defun gnus-summary-update-article-line (article header)
23f87bed 4513 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4514 (let* ((id (mail-header-id header))
4515 (thread (gnus-id-to-thread id)))
4516 (unless thread
4517 (error "Article in no thread"))
4518 ;; Update the thread.
4519 (setcar thread header)
4520 (gnus-summary-goto-subject article)
4521 (let* ((datal (gnus-data-find-list article))
4522 (data (car datal))
c7a91ce1 4523 (inhibit-read-only t)
eec82323
LMI
4524 (level (gnus-summary-thread-level)))
4525 (gnus-delete-line)
23f87bed
MB
4526 (let ((inserted (- (point)
4527 (progn
4528 (gnus-summary-insert-line
4529 header level nil
4530 (memq article gnus-newsgroup-undownloaded)
4531 (gnus-article-mark article)
4532 (memq article gnus-newsgroup-replied)
4533 (memq article gnus-newsgroup-expirable)
4534 ;; Only insert the Subject string when it's different
4535 ;; from the previous Subject string.
4536 (if (and
4537 gnus-show-threads
4538 (gnus-subject-equal
4539 (condition-case ()
4540 (mail-header-subject
4541 (gnus-data-header
4542 (cadr
4543 (gnus-data-find-list
4544 article
4545 (gnus-data-list t)))))
4546 ;; Error on the side of excessive subjects.
4547 (error ""))
4548 (mail-header-subject header)))
4549 ""
4550 (mail-header-subject header))
4551 nil (cdr (assq article gnus-newsgroup-scored))
4552 (memq article gnus-newsgroup-processable))
4553 (point)))))
4554 (when (cdr datal)
4555 (gnus-data-update-list
4556 (cdr datal)
4557 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4558
4559(defun gnus-summary-update-article (article &optional iheader)
4560 "Update ARTICLE in the summary buffer."
4561 (set-buffer gnus-summary-buffer)
6748645f 4562 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4563 (id (mail-header-id header))
4564 (data (gnus-data-find article))
4565 (thread (gnus-id-to-thread id))
4566 (references (mail-header-references header))
4567 (parent
4568 (gnus-id-to-thread
4569 (or (gnus-parent-id
4570 (when (and references
4571 (not (equal "" references)))
4572 references))
4573 "none")))
c7a91ce1 4574 (inhibit-read-only t)
6748645f 4575 (old (car thread)))
eec82323 4576 (when thread
eec82323 4577 (unless iheader
6748645f
LMI
4578 (setcar thread nil)
4579 (when parent
4580 (delq thread parent)))
4581 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4582 ;; Set the (possibly) new article number in the data structure.
4583 (gnus-data-set-number data (gnus-id-to-article id))
4584 (setcar thread old)
4585 nil))))
4586
6748645f
LMI
4587(defun gnus-rebuild-thread (id &optional line)
4588 "Rebuild the thread containing ID.
4589If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4590 (let ((inhibit-read-only t)
eec82323
LMI
4591 old-pos current thread data)
4592 (if (not gnus-show-threads)
4593 (setq thread (list (car (gnus-id-to-thread id))))
4594 ;; Get the thread this article is part of.
4595 (setq thread (gnus-remove-thread id)))
01c52d31 4596 (setq old-pos (point-at-bol))
eec82323 4597 (setq current (save-excursion
94384150 4598 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4599 (gnus-summary-article-number))))
4600 ;; If this is a gathered thread, we have to go some re-gathering.
4601 (when (stringp (car thread))
4602 (let ((subject (car thread))
4603 roots thr)
4604 (setq thread (cdr thread))
4605 (while thread
4606 (unless (memq (setq thr (gnus-id-to-thread
4607 (gnus-root-id
4608 (mail-header-id (caar thread)))))
4609 roots)
4610 (push thr roots))
4611 (setq thread (cdr thread)))
4612 ;; We now have all (unique) roots.
4613 (if (= (length roots) 1)
4614 ;; All the loose roots are now one solid root.
4615 (setq thread (car roots))
4616 (setq thread (cons subject (gnus-sort-threads roots))))))
4617 (let (threads)
4618 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4619 (when line
4620 (goto-char (point-min))
4621 (forward-line (1- line)))
eec82323
LMI
4622 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4623 (if gnus-show-threads
4624 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4625 (gnus-summary-prepare-unthreaded thread))
4626 (setq data (nreverse gnus-newsgroup-data))
4627 (setq threads gnus-newsgroup-threads))
4628 ;; We splice the new data into the data structure.
6748645f
LMI
4629 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4630 ;;!!! then we want to insert at the beginning of the buffer.
4631 ;;!!! That happens to be true with Gnus now, but that may
4632 ;;!!! change in the future. Perhaps.
4633 (gnus-data-enter-list
4634 (if line nil current) data (- (point) old-pos))
4635 (setq gnus-newsgroup-threads
4636 (nconc threads gnus-newsgroup-threads))
4637 (gnus-data-compute-positions))))
eec82323
LMI
4638
4639(defun gnus-number-to-header (number)
4640 "Return the header for article NUMBER."
4641 (let ((headers gnus-newsgroup-headers))
4642 (while (and headers
4643 (not (= number (mail-header-number (car headers)))))
4644 (pop headers))
4645 (when headers
4646 (car headers))))
4647
6748645f 4648(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4649 "Return the headers of the GENERATIONeth parent of HEADERS."
4650 (unless generation
4651 (setq generation 1))
a8151ef7 4652 (let ((parent t)
6748645f 4653 (headers in-headers)
a8151ef7 4654 references)
6748645f
LMI
4655 (while (and parent
4656 (not (zerop generation))
4657 (setq references (mail-header-references headers)))
4658 (setq headers (if (and references
4659 (setq parent (gnus-parent-id references)))
4660 (car (gnus-id-to-thread parent))
4661 nil))
4662 (decf generation))
4663 (and (not (eq headers in-headers))
4664 headers)))
eec82323
LMI
4665
4666(defun gnus-id-to-thread (id)
4667 "Return the (sub-)thread where ID appears."
4668 (gnus-gethash id gnus-newsgroup-dependencies))
4669
4670(defun gnus-id-to-article (id)
4671 "Return the article number of ID."
4672 (let ((thread (gnus-id-to-thread id)))
4673 (when (and thread
4674 (car thread))
4675 (mail-header-number (car thread)))))
4676
4677(defun gnus-id-to-header (id)
4678 "Return the article headers of ID."
4679 (car (gnus-id-to-thread id)))
4680
4681(defun gnus-article-displayed-root-p (article)
4682 "Say whether ARTICLE is a root(ish) article."
4683 (let ((level (gnus-summary-thread-level article))
4684 (refs (mail-header-references (gnus-summary-article-header article)))
4685 particle)
4686 (cond
4687 ((null level) nil)
4688 ((zerop level) t)
4689 ((null refs) t)
4690 ((null (gnus-parent-id refs)) t)
4691 ((and (= 1 level)
4692 (null (setq particle (gnus-id-to-article
4693 (gnus-parent-id refs))))
4694 (null (gnus-summary-thread-level particle)))))))
4695
4696(defun gnus-root-id (id)
4697 "Return the id of the root of the thread where ID appears."
4698 (let (last-id prev)
6748645f 4699 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4700 (setq last-id id
4701 id (gnus-parent-id (mail-header-references prev))))
4702 last-id))
4703
6748645f
LMI
4704(defun gnus-articles-in-thread (thread)
4705 "Return the list of articles in THREAD."
4706 (cons (mail-header-number (car thread))
4707 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4708
eec82323
LMI
4709(defun gnus-remove-thread (id &optional dont-remove)
4710 "Remove the thread that has ID in it."
6748645f 4711 (let (headers thread last-id)
eec82323 4712 ;; First go up in this thread until we find the root.
6748645f
LMI
4713 (setq last-id (gnus-root-id id)
4714 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4715 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4716 ;; been gathered into some loose thread, so we have to search
4717 ;; through the threads to find the thread we wanted.
4718 (let ((threads gnus-newsgroup-threads)
4719 sub)
4720 (while threads
4721 (setq sub (car threads))
4722 (if (stringp (car sub))
4723 ;; This is a gathered thread, so we look at the roots
4724 ;; below it to find whether this article is in this
4725 ;; gathered root.
4726 (progn
4727 (setq sub (cdr sub))
4728 (while sub
4729 (when (member (caar sub) headers)
4730 (setq thread (car threads)
4731 threads nil
4732 sub nil))
4733 (setq sub (cdr sub))))
4734 ;; It's an ordinary thread, so we check it.
4735 (when (eq (car sub) (car headers))
4736 (setq thread sub
4737 threads nil)))
4738 (setq threads (cdr threads)))
4739 ;; If this article is in no thread, then it's a root.
4740 (if thread
4741 (unless dont-remove
4742 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4743 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4744 (when thread
4745 (prog1
4746 thread ; We return this thread.
4747 (unless dont-remove
4748 (if (stringp (car thread))
4749 (progn
4750 ;; If we use dummy roots, then we have to remove the
4751 ;; dummy root as well.
4752 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4753 ;; We go to the dummy root by going to
4754 ;; the first sub-"thread", and then one line up.
4755 (gnus-summary-goto-article
4756 (mail-header-number (caadr thread)))
4757 (forward-line -1)
eec82323
LMI
4758 (gnus-delete-line)
4759 (gnus-data-compute-positions))
4760 (setq thread (cdr thread))
4761 (while thread
4762 (gnus-remove-thread-1 (car thread))
4763 (setq thread (cdr thread))))
4764 (gnus-remove-thread-1 thread))))))))
4765
4766(defun gnus-remove-thread-1 (thread)
4767 "Remove the thread THREAD recursively."
4768 (let ((number (mail-header-number (pop thread)))
4769 d)
4770 (setq thread (reverse thread))
4771 (while thread
4772 (gnus-remove-thread-1 (pop thread)))
4773 (when (setq d (gnus-data-find number))
4774 (goto-char (gnus-data-pos d))
16409b0b 4775 (gnus-summary-show-thread)
eec82323
LMI
4776 (gnus-data-remove
4777 number
01c52d31 4778 (- (point-at-bol)
eec82323 4779 (prog1
01c52d31 4780 (1+ (point-at-eol))
eec82323
LMI
4781 (gnus-delete-line)))))))
4782
4921bbdd 4783(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4784 (sort (mapcar (lambda (thread)
4785 (cons (car thread)
4786 (and (cdr thread)
4921bbdd 4787 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4788 threads) func))
4789
4921bbdd
CY
4790(defun gnus-sort-threads-loop (threads func)
4791 (let* ((superthread (cons nil threads))
4792 (stack (list (cons superthread threads)))
4793 remaining-threads thread)
4794 (while stack
4795 (setq remaining-threads (cdr (car stack)))
4796 (if remaining-threads
4797 (progn (setq thread (car remaining-threads))
4798 (setcdr (car stack) (cdr remaining-threads))
4799 (if (cdr thread)
4800 (push (cons thread (cdr thread)) stack)))
4801 (setq thread (caar stack))
4802 (setcdr thread (sort (cdr thread) func))
4803 (pop stack)))
4804 (cdr superthread)))
4805
eec82323
LMI
4806(defun gnus-sort-threads (threads)
4807 "Sort THREADS."
4808 (if (not gnus-thread-sort-functions)
4809 threads
6748645f 4810 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4811 (prog1
4812 (condition-case nil
4813 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4814 (gnus-sort-threads-recursive
4815 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4816 ;; Even after binding max-lisp-eval-depth, the recursive
4817 ;; sorter might fail for very long threads. In that case,
4818 ;; try using a (less well-tested) non-recursive sorter.
4819 (error (gnus-sort-threads-loop
4820 threads (gnus-make-sort-function
4821 gnus-thread-sort-functions))))
4822 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4823
4824(defun gnus-sort-articles (articles)
4825 "Sort ARTICLES."
4826 (when gnus-article-sort-functions
4827 (gnus-message 7 "Sorting articles...")
4828 (prog1
4829 (setq gnus-newsgroup-headers
4830 (sort articles (gnus-make-sort-function
4831 gnus-article-sort-functions)))
4832 (gnus-message 7 "Sorting articles...done"))))
4833
4834;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4835(defmacro gnus-thread-header (thread)
16409b0b
GM
4836 "Return header of first article in THREAD.
4837Note that THREAD must never, ever be anything else than a variable -
4838using some other form will lead to serious barfage."
eec82323
LMI
4839 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4840 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4841 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4842 (vector thread) 2))
4843
4844(defsubst gnus-article-sort-by-number (h1 h2)
4845 "Sort articles by article number."
4846 (< (mail-header-number h1)
4847 (mail-header-number h2)))
4848
4849(defun gnus-thread-sort-by-number (h1 h2)
4850 "Sort threads by root article number."
4851 (gnus-article-sort-by-number
4852 (gnus-thread-header h1) (gnus-thread-header h2)))
4853
23f87bed 4854(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4855 "Sort articles randomly."
23f87bed
MB
4856 (zerop (random 2)))
4857
4858(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4859 "Sort threads randomly."
23f87bed
MB
4860 (gnus-article-sort-by-random
4861 (gnus-thread-header h1) (gnus-thread-header h2)))
4862
eec82323
LMI
4863(defsubst gnus-article-sort-by-lines (h1 h2)
4864 "Sort articles by article Lines header."
4865 (< (mail-header-lines h1)
4866 (mail-header-lines h2)))
4867
4868(defun gnus-thread-sort-by-lines (h1 h2)
4869 "Sort threads by root article Lines header."
4870 (gnus-article-sort-by-lines
4871 (gnus-thread-header h1) (gnus-thread-header h2)))
4872
16409b0b
GM
4873(defsubst gnus-article-sort-by-chars (h1 h2)
4874 "Sort articles by octet length."
4875 (< (mail-header-chars h1)
4876 (mail-header-chars h2)))
4877
4878(defun gnus-thread-sort-by-chars (h1 h2)
4879 "Sort threads by root article octet length."
4880 (gnus-article-sort-by-chars
4881 (gnus-thread-header h1) (gnus-thread-header h2)))
4882
eec82323
LMI
4883(defsubst gnus-article-sort-by-author (h1 h2)
4884 "Sort articles by root author."
b4fde39f 4885 (gnus-string<
eec82323
LMI
4886 (let ((extract (funcall
4887 gnus-extract-address-components
4888 (mail-header-from h1))))
4889 (or (car extract) (cadr extract) ""))
4890 (let ((extract (funcall
4891 gnus-extract-address-components
4892 (mail-header-from h2))))
4893 (or (car extract) (cadr extract) ""))))
4894
4895(defun gnus-thread-sort-by-author (h1 h2)
4896 "Sort threads by root author."
4897 (gnus-article-sort-by-author
4898 (gnus-thread-header h1) (gnus-thread-header h2)))
4899
01c52d31
MB
4900(defsubst gnus-article-sort-by-recipient (h1 h2)
4901 "Sort articles by recipient."
4902 (gnus-string<
4903 (let ((extract (funcall
4904 gnus-extract-address-components
4905 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4906 (or (car extract) (cadr extract)))
4907 (let ((extract (funcall
4908 gnus-extract-address-components
4909 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4910 (or (car extract) (cadr extract)))))
4911
4912(defun gnus-thread-sort-by-recipient (h1 h2)
4913 "Sort threads by root recipient."
4914 (gnus-article-sort-by-recipient
4915 (gnus-thread-header h1) (gnus-thread-header h2)))
4916
eec82323
LMI
4917(defsubst gnus-article-sort-by-subject (h1 h2)
4918 "Sort articles by root subject."
b4fde39f 4919 (gnus-string<
eec82323
LMI
4920 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4921 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4922
4923(defun gnus-thread-sort-by-subject (h1 h2)
4924 "Sort threads by root subject."
4925 (gnus-article-sort-by-subject
4926 (gnus-thread-header h1) (gnus-thread-header h2)))
4927
4928(defsubst gnus-article-sort-by-date (h1 h2)
4929 "Sort articles by root article date."
16409b0b 4930 (time-less-p
eec82323
LMI
4931 (gnus-date-get-time (mail-header-date h1))
4932 (gnus-date-get-time (mail-header-date h2))))
4933
4934(defun gnus-thread-sort-by-date (h1 h2)
4935 "Sort threads by root article date."
4936 (gnus-article-sort-by-date
4937 (gnus-thread-header h1) (gnus-thread-header h2)))
4938
4939(defsubst gnus-article-sort-by-score (h1 h2)
4940 "Sort articles by root article score.
4941Unscored articles will be counted as having a score of zero."
4942 (> (or (cdr (assq (mail-header-number h1)
4943 gnus-newsgroup-scored))
4944 gnus-summary-default-score 0)
4945 (or (cdr (assq (mail-header-number h2)
4946 gnus-newsgroup-scored))
4947 gnus-summary-default-score 0)))
4948
4949(defun gnus-thread-sort-by-score (h1 h2)
4950 "Sort threads by root article score."
4951 (gnus-article-sort-by-score
4952 (gnus-thread-header h1) (gnus-thread-header h2)))
4953
4954(defun gnus-thread-sort-by-total-score (h1 h2)
4955 "Sort threads by the sum of all scores in the thread.
4956Unscored articles will be counted as having a score of zero."
4957 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4958
4959(defun gnus-thread-total-score (thread)
16409b0b 4960 ;; This function find the total score of THREAD.
23f87bed
MB
4961 (cond
4962 ((null thread)
4963 0)
4964 ((consp thread)
4965 (if (stringp (car thread))
4966 (apply gnus-thread-score-function 0
4967 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4968 (gnus-thread-total-score-1 thread)))
4969 (t
4970 (gnus-thread-total-score-1 (list thread)))))
4971
4972(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4973 "Sort threads such that the thread with the most recently arrived article comes first."
4974 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4975
4976(defun gnus-thread-highest-number (thread)
4977 "Return the highest article number in THREAD."
4978 (apply 'max (mapcar (lambda (header)
4979 (mail-header-number header))
4980 (message-flatten-list thread))))
4981
4982(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4983 "Sort threads such that the thread with the most recently dated article comes first."
4984 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4985
4986(defun gnus-thread-latest-date (thread)
4987 "Return the highest article date in THREAD."
4988 (let ((previous-time 0))
4989 (apply 'max
4990 (mapcar
4991 (lambda (header)
4992 (setq previous-time
4993 (condition-case ()
4994 (time-to-seconds (mail-header-parse-date
4995 (mail-header-date header)))
4996 (error previous-time))))
4997 (sort
4998 (message-flatten-list thread)
4999 (lambda (h1 h2)
5000 (< (mail-header-number h1)
5001 (mail-header-number h2))))))))
eec82323
LMI
5002
5003(defun gnus-thread-total-score-1 (root)
5004 ;; This function find the total score of the thread below ROOT.
5005 (setq root (car root))
5006 (apply gnus-thread-score-function
5007 (or (append
5008 (mapcar 'gnus-thread-total-score
6748645f 5009 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5010 (when (> (mail-header-number root) 0)
5011 (list (or (cdr (assq (mail-header-number root)
5012 gnus-newsgroup-scored))
5013 gnus-summary-default-score 0))))
5014 (list gnus-summary-default-score)
5015 '(0))))
5016
5017;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5018(defvar gnus-tmp-prev-subject nil)
5019(defvar gnus-tmp-false-parent nil)
5020(defvar gnus-tmp-root-expunged nil)
5021(defvar gnus-tmp-dummy-line nil)
5022
16409b0b
GM
5023(defun gnus-extra-header (type &optional header)
5024 "Return the extra header of TYPE."
5025 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5026 ""))
5027
23f87bed
MB
5028(defvar gnus-tmp-thread-tree-header-string "")
5029
5030(defcustom gnus-sum-thread-tree-root "> "
5031 "With %B spec, used for the root of a thread.
5032If nil, use subject instead."
bf247b6e 5033 :version "22.1"
ad136a7c 5034 :type '(radio (const :format "%v " nil) string)
23f87bed 5035 :group 'gnus-thread)
01c52d31 5036
23f87bed
MB
5037(defcustom gnus-sum-thread-tree-false-root "> "
5038 "With %B spec, used for a false root of a thread.
5039If nil, use subject instead."
bf247b6e 5040 :version "22.1"
ad136a7c 5041 :type '(radio (const :format "%v " nil) string)
23f87bed 5042 :group 'gnus-thread)
01c52d31 5043
23f87bed
MB
5044(defcustom gnus-sum-thread-tree-single-indent ""
5045 "With %B spec, used for a thread with just one message.
5046If nil, use subject instead."
bf247b6e 5047 :version "22.1"
ad136a7c 5048 :type '(radio (const :format "%v " nil) string)
23f87bed 5049 :group 'gnus-thread)
01c52d31 5050
23f87bed
MB
5051(defcustom gnus-sum-thread-tree-vertical "| "
5052 "With %B spec, used for drawing a vertical line."
bf247b6e 5053 :version "22.1"
23f87bed
MB
5054 :type 'string
5055 :group 'gnus-thread)
01c52d31 5056
23f87bed
MB
5057(defcustom gnus-sum-thread-tree-indent " "
5058 "With %B spec, used for indenting."
bf247b6e 5059 :version "22.1"
23f87bed
MB
5060 :type 'string
5061 :group 'gnus-thread)
01c52d31 5062
23f87bed
MB
5063(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5064 "With %B spec, used for a leaf with brothers."
bf247b6e 5065 :version "22.1"
23f87bed
MB
5066 :type 'string
5067 :group 'gnus-thread)
01c52d31 5068
23f87bed
MB
5069(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5070 "With %B spec, used for a leaf without brothers."
bf247b6e 5071 :version "22.1"
23f87bed
MB
5072 :type 'string
5073 :group 'gnus-thread)
5074
1fc34624
GM
5075(defcustom gnus-summary-display-while-building nil
5076 "If non-nil, show and update the summary buffer as it's being built.
5077If the value is t, update the buffer after every line is inserted. If
5078the value is an integer (N), update the display every N lines."
5079 :version "22.1"
5080 :group 'gnus-thread
5081 :type '(choice (const :tag "off" nil)
5082 number
5083 (const :tag "frequently" t)))
5084
eec82323
LMI
5085(defun gnus-summary-prepare-threads (threads)
5086 "Prepare summary buffer from THREADS and indentation LEVEL.
5087THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5088or a straight list of headers."
5089 (gnus-message 7 "Generating summary...")
5090
5091 (setq gnus-newsgroup-threads threads)
5092 (beginning-of-line)
5093
5094 (let ((gnus-tmp-level 0)
5095 (default-score (or gnus-summary-default-score 0))
5096 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5097 (building-line-count gnus-summary-display-while-building)
5098 (building-count (integerp gnus-summary-display-while-building))
eec82323 5099 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5100 new-roots gnus-tmp-new-adopts thread-end simp-subject
5101 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5102 gnus-tmp-replied gnus-tmp-subject-or-nil
5103 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5104 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5105 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5106 tree-stack)
eec82323 5107
23f87bed
MB
5108 (setq gnus-tmp-prev-subject nil
5109 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5110
5111 (if (vectorp (car threads))
5112 ;; If this is a straight (sic) list of headers, then a
5113 ;; threaded summary display isn't required, so we just create
5114 ;; an unthreaded one.
5115 (gnus-summary-prepare-unthreaded threads)
5116
5117 ;; Do the threaded display.
5118
23f87bed
MB
5119 (if gnus-summary-display-while-building
5120 (switch-to-buffer (buffer-name)))
eec82323
LMI
5121 (while (or threads stack gnus-tmp-new-adopts new-roots)
5122
5123 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5124 (or (not stack)
5125 (= (caar stack) 0))
5126 (not gnus-tmp-false-parent)
5127 (or gnus-tmp-new-adopts new-roots))
5128 (if gnus-tmp-new-adopts
5129 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5130 thread (list (car gnus-tmp-new-adopts))
5131 gnus-tmp-header (caar thread)
5132 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5133 (when new-roots
5134 (setq thread (list (car new-roots))
5135 gnus-tmp-header (caar thread)
5136 new-roots (cdr new-roots))))
5137
5138 (if threads
5139 ;; If there are some threads, we do them before the
5140 ;; threads on the stack.
5141 (setq thread threads
5142 gnus-tmp-header (caar thread))
5143 ;; There were no current threads, so we pop something off
5144 ;; the stack.
5145 (setq state (car stack)
5146 gnus-tmp-level (car state)
23f87bed
MB
5147 tree-stack (cadr state)
5148 thread (caddr state)
eec82323
LMI
5149 stack (cdr stack)
5150 gnus-tmp-header (caar thread))))
5151
5152 (setq gnus-tmp-false-parent nil)
5153 (setq gnus-tmp-root-expunged nil)
5154 (setq thread-end nil)
5155
5156 (if (stringp gnus-tmp-header)
5157 ;; The header is a dummy root.
5158 (cond
5159 ((eq gnus-summary-make-false-root 'adopt)
5160 ;; We let the first article adopt the rest.
5161 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5162 (cddar thread)))
5163 (setq gnus-tmp-gathered
5164 (nconc (mapcar
5165 (lambda (h) (mail-header-number (car h)))
5166 (cddar thread))
5167 gnus-tmp-gathered))
5168 (setq thread (cons (list (caar thread)
5169 (cadar thread))
5170 (cdr thread)))
5171 (setq gnus-tmp-level -1
5172 gnus-tmp-false-parent t))
5173 ((eq gnus-summary-make-false-root 'empty)
5174 ;; We print adopted articles with empty subject fields.
5175 (setq gnus-tmp-gathered
5176 (nconc (mapcar
5177 (lambda (h) (mail-header-number (car h)))
5178 (cddar thread))
5179 gnus-tmp-gathered))
5180 (setq gnus-tmp-level -1))
5181 ((eq gnus-summary-make-false-root 'dummy)
5182 ;; We remember that we probably want to output a dummy
5183 ;; root.
5184 (setq gnus-tmp-dummy-line gnus-tmp-header)
5185 (setq gnus-tmp-prev-subject gnus-tmp-header))
5186 (t
5187 ;; We do not make a root for the gathered
5188 ;; sub-threads at all.
5189 (setq gnus-tmp-level -1)))
5190
5191 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5192 subject (mail-header-subject gnus-tmp-header)
5193 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5194
5195 (cond
5196 ;; If the thread has changed subject, we might want to make
5197 ;; this subthread into a root.
5198 ((and (null gnus-thread-ignore-subject)
5199 (not (zerop gnus-tmp-level))
5200 gnus-tmp-prev-subject
23f87bed 5201 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5202 (setq new-roots (nconc new-roots (list (car thread)))
5203 thread-end t
5204 gnus-tmp-header nil))
5205 ;; If the article lies outside the current limit,
5206 ;; then we do not display it.
5207 ((not (memq number gnus-newsgroup-limit))
5208 (setq gnus-tmp-gathered
5209 (nconc (mapcar
5210 (lambda (h) (mail-header-number (car h)))
5211 (cdar thread))
5212 gnus-tmp-gathered))
5213 (setq gnus-tmp-new-adopts (if (cdar thread)
5214 (append gnus-tmp-new-adopts
5215 (cdar thread))
5216 gnus-tmp-new-adopts)
5217 thread-end t
5218 gnus-tmp-header nil)
5219 (when (zerop gnus-tmp-level)
5220 (setq gnus-tmp-root-expunged t)))
5221 ;; Perhaps this article is to be marked as read?
5222 ((and gnus-summary-mark-below
5223 (< (or (cdr (assq number gnus-newsgroup-scored))
5224 default-score)
5225 gnus-summary-mark-below)
5226 ;; Don't touch sparse articles.
5227 (not (gnus-summary-article-sparse-p number))
5228 (not (gnus-summary-article-ancient-p number)))
5229 (setq gnus-newsgroup-unreads
5230 (delq number gnus-newsgroup-unreads))
5231 (if gnus-newsgroup-auto-expire
23f87bed
MB
5232 (setq gnus-newsgroup-expirable
5233 (gnus-add-to-sorted-list
5234 gnus-newsgroup-expirable number))
eec82323
LMI
5235 (push (cons number gnus-low-score-mark)
5236 gnus-newsgroup-reads))))
5237
5238 (when gnus-tmp-header
5239 ;; We may have an old dummy line to output before this
5240 ;; article.
6748645f
LMI
5241 (when (and gnus-tmp-dummy-line
5242 (gnus-subject-equal
5243 gnus-tmp-dummy-line
5244 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5245 (gnus-summary-insert-dummy-line
5246 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5247 (setq gnus-tmp-dummy-line nil))
5248
5249 ;; Compute the mark.
5250 (setq gnus-tmp-unread (gnus-article-mark number))
5251
5252 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5253 gnus-tmp-header gnus-tmp-level)
5254 gnus-newsgroup-data)
5255
5256 ;; Actually insert the line.
5257 (setq
5258 gnus-tmp-subject-or-nil
5259 (cond
5260 ((and gnus-thread-ignore-subject
5261 gnus-tmp-prev-subject
23f87bed 5262 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5263 subject)
5264 ((zerop gnus-tmp-level)
5265 (if (and (eq gnus-summary-make-false-root 'empty)
5266 (memq number gnus-tmp-gathered)
5267 gnus-tmp-prev-subject
23f87bed 5268 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5269 gnus-summary-same-subject
5270 subject))
5271 (t gnus-summary-same-subject)))
5272 (if (and (eq gnus-summary-make-false-root 'adopt)
5273 (= gnus-tmp-level 1)
5274 (memq number gnus-tmp-gathered))
5275 (setq gnus-tmp-opening-bracket ?\<
5276 gnus-tmp-closing-bracket ?\>)
5277 (setq gnus-tmp-opening-bracket ?\[
5278 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5279 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5280 (gnus-make-thread-indent-array
5281 (max (* 2 (length gnus-thread-indent-array))
5282 gnus-tmp-level)))
eec82323
LMI
5283 (setq
5284 gnus-tmp-indentation
5285 (aref gnus-thread-indent-array gnus-tmp-level)
5286 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5287 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5288 gnus-summary-default-score 0)
5289 gnus-tmp-score-char
5290 (if (or (null gnus-summary-default-score)
5291 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5292 gnus-summary-zcore-fuzz))
23f87bed 5293 ? ;Whitespace
eec82323
LMI
5294 (if (< gnus-tmp-score gnus-summary-default-score)
5295 gnus-score-below-mark gnus-score-over-mark))
5296 gnus-tmp-replied
5297 (cond ((memq number gnus-newsgroup-processable)
5298 gnus-process-mark)
5299 ((memq number gnus-newsgroup-cached)
5300 gnus-cached-mark)
5301 ((memq number gnus-newsgroup-replied)
5302 gnus-replied-mark)
23f87bed
MB
5303 ((memq number gnus-newsgroup-forwarded)
5304 gnus-forwarded-mark)
eec82323
LMI
5305 ((memq number gnus-newsgroup-saved)
5306 gnus-saved-mark)
23f87bed
MB
5307 ((memq number gnus-newsgroup-recent)
5308 gnus-recent-mark)
5309 ((memq number gnus-newsgroup-unseen)
5310 gnus-unseen-mark)
5311 (t gnus-no-mark))
5312 gnus-tmp-downloaded
5313 (cond ((memq number gnus-newsgroup-undownloaded)
5314 gnus-undownloaded-mark)
5315 (gnus-newsgroup-agentized
5316 gnus-downloaded-mark)
5317 (t
5318 gnus-no-mark))
eec82323
LMI
5319 gnus-tmp-from (mail-header-from gnus-tmp-header)
5320 gnus-tmp-name
5321 (cond
5322 ((string-match "<[^>]+> *$" gnus-tmp-from)
5323 (setq beg-match (match-beginning 0))
23f87bed
MB
5324 (or (and (string-match "^\".+\"" gnus-tmp-from)
5325 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5326 (substring gnus-tmp-from 0 beg-match)))
5327 ((string-match "(.+)" gnus-tmp-from)
5328 (substring gnus-tmp-from
5329 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5330 (t gnus-tmp-from))
5331
5332 ;; Do the %B string
5333 gnus-tmp-thread-tree-header-string
5334 (cond
5335 ((not gnus-show-threads) "")
5336 ((zerop gnus-tmp-level)
5337 (cond ((cdar thread)
5338 (or gnus-sum-thread-tree-root subject))
5339 (gnus-tmp-new-adopts
5340 (or gnus-sum-thread-tree-false-root subject))
5341 (t
5342 (or gnus-sum-thread-tree-single-indent subject))))
5343 (t
5344 (concat (apply 'concat
5345 (mapcar (lambda (item)
5346 (if (= item 1)
5347 gnus-sum-thread-tree-vertical
5348 gnus-sum-thread-tree-indent))
5349 (cdr (reverse tree-stack))))
5350 (if (nth 1 thread)
5351 gnus-sum-thread-tree-leaf-with-other
5352 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5353 (when (string= gnus-tmp-name "")
5354 (setq gnus-tmp-name gnus-tmp-from))
5355 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5356 (setq gnus-tmp-lines -1))
5357 (if (= gnus-tmp-lines -1)
5358 (setq gnus-tmp-lines "?")
5359 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5360 (gnus-put-text-property
64763fe3
MB
5361 (point)
5362 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5363 'gnus-number number)
64763fe3
MB
5364 (when gnus-visual-p
5365 (forward-line -1)
5366 (gnus-run-hooks 'gnus-summary-update-hook)
5367 (forward-line 1))
eec82323 5368
64763fe3 5369 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5370
5371 (when (nth 1 thread)
23f87bed
MB
5372 (push (list (max 0 gnus-tmp-level)
5373 (copy-sequence tree-stack)
5374 (nthcdr 1 thread))
5375 stack))
5376 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5377 (incf gnus-tmp-level)
5378 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5379 (if gnus-summary-display-while-building
5380 (if building-count
5381 (progn
5382 ;; use a set frequency
5383 (setq building-line-count (1- building-line-count))
5384 (when (= building-line-count 0)
5385 (sit-for 0)
5386 (setq building-line-count
5387 gnus-summary-display-while-building)))
5388 ;; always
5389 (sit-for 0)))
eec82323
LMI
5390 (unless threads
5391 (setq gnus-tmp-level 0)))))
5392 (gnus-message 7 "Generating summary...done"))
5393
5394(defun gnus-summary-prepare-unthreaded (headers)
5395 "Generate an unthreaded summary buffer based on HEADERS."
5396 (let (header number mark)
5397
5398 (beginning-of-line)
5399
5400 (while headers
5401 ;; We may have to root out some bad articles...
5402 (when (memq (setq number (mail-header-number
5403 (setq header (pop headers))))
5404 gnus-newsgroup-limit)
5405 ;; Mark article as read when it has a low score.
5406 (when (and gnus-summary-mark-below
5407 (< (or (cdr (assq number gnus-newsgroup-scored))
5408 gnus-summary-default-score 0)
5409 gnus-summary-mark-below)
5410 (not (gnus-summary-article-ancient-p number)))
5411 (setq gnus-newsgroup-unreads
5412 (delq number gnus-newsgroup-unreads))
5413 (if gnus-newsgroup-auto-expire
5414 (push number gnus-newsgroup-expirable)
5415 (push (cons number gnus-low-score-mark)
5416 gnus-newsgroup-reads)))
5417
5418 (setq mark (gnus-article-mark number))
5419 (push (gnus-data-make number mark (1+ (point)) header 0)
5420 gnus-newsgroup-data)
5421 (gnus-summary-insert-line
5422 header 0 number
23f87bed 5423 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5424 mark (memq number gnus-newsgroup-replied)
5425 (memq number gnus-newsgroup-expirable)
5426 (mail-header-subject header) nil
5427 (cdr (assq number gnus-newsgroup-scored))
5428 (memq number gnus-newsgroup-processable))))))
5429
16409b0b
GM
5430(defun gnus-summary-remove-list-identifiers ()
5431 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5432 (let ((regexp (if (consp gnus-list-identifiers)
5433 (mapconcat 'identity gnus-list-identifiers " *\\|")
5434 gnus-list-identifiers))
5435 changed subject)
5436 (when regexp
01c52d31 5437 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5438 (dolist (header gnus-newsgroup-headers)
5439 (setq subject (mail-header-subject header)
5440 changed nil)
01c52d31 5441 (while (string-match regexp subject)
23f87bed 5442 (setq subject
01c52d31 5443 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5444 (substring subject (match-end 0)))
5445 changed t))
23f87bed 5446 (when changed
01c52d31
MB
5447 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5448 (setq subject
5449 (concat (substring subject 0 (match-beginning 1))
5450 (substring subject (match-end 1)))))
23f87bed
MB
5451 (mail-header-set-subject header subject))))))
5452
5453(defun gnus-fetch-headers (articles)
5454 "Fetch headers of ARTICLES."
5455 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5456 (gnus-message 5 "Fetching headers for %s..." name)
5457 (prog1
5458 (if (eq 'nov
5459 (setq gnus-headers-retrieved-by
5460 (gnus-retrieve-headers
5461 articles gnus-newsgroup-name
5462 ;; We might want to fetch old headers, but
5463 ;; not if there is only 1 article.
5464 (and (or (and
5465 (not (eq gnus-fetch-old-headers 'some))
5466 (not (numberp gnus-fetch-old-headers)))
5467 (> (length articles) 1))
5468 gnus-fetch-old-headers))))
5469 (gnus-get-newsgroup-headers-xover
5470 articles nil nil gnus-newsgroup-name t)
5471 (gnus-get-newsgroup-headers))
5472 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5473
6748645f 5474(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5475 "Select newsgroup GROUP.
6748645f
LMI
5476If READ-ALL is non-nil, all articles in the group are selected.
5477If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5478 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5479 ;;!!! Dirty hack; should be removed.
5480 (gnus-summary-ignore-duplicates
23f87bed 5481 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5482 t
5483 gnus-summary-ignore-duplicates))
5484 (info (nth 2 entry))
01c52d31 5485 charset articles fetched-articles cached)
eec82323
LMI
5486
5487 (unless (gnus-check-server
475e0e0c
GM
5488 (set (make-local-variable 'gnus-current-select-method)
5489 (gnus-find-method-for-group group)))
eec82323 5490 (error "Couldn't open server"))
01c52d31 5491 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5492
5493 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5494 (gnus-activate-group group) ; Or we can activate it...
5495 (progn ; Or we bug out.
5496 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5497 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5498 (error
5499 "Couldn't activate group %s: %s"
5500 (mm-decode-coding-string group charset)
5501 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5502
5503 (unless (gnus-request-group group t)
01c52d31
MB
5504 (when (equal major-mode 'gnus-summary-mode)
5505 (gnus-kill-buffer (current-buffer)))
5506 (error "Couldn't request group %s: %s"
5507 (mm-decode-coding-string group charset)
5508 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5509
23f87bed 5510 (when gnus-agent
54506618 5511 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5512
23f87bed
MB
5513 (setq gnus-summary-use-undownloaded-faces
5514 (gnus-agent-find-parameter
5515 group
5516 'agent-enable-undownloaded-faces)))
5517
5518 (setq gnus-newsgroup-name group
5519 gnus-newsgroup-unselected nil
5520 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5521
5522 (let ((display (gnus-group-find-parameter group 'display)))
5523 (setq gnus-newsgroup-display
5524 (cond
5525 ((not (zerop (or (car-safe read-all) 0)))
5526 ;; The user entered the group with C-u SPC/RET, let's show
5527 ;; all articles.
5528 'gnus-not-ignore)
5529 ((eq display 'all)
5530 'gnus-not-ignore)
5531 ((arrayp display)
5532 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5533 ((numberp display)
5534 ;; The following is probably the "correct" solution, but
5535 ;; it makes Gnus fetch all headers and then limit the
5536 ;; articles (which is slow), so instead we hack the
5537 ;; select-articles parameter instead. -- Simon Josefsson
5538 ;; <jas@kth.se>
5539 ;;
5540 ;; (gnus-byte-compile
5541 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5542 ;; display)))))
5543 (setq select-articles
5544 (gnus-uncompress-range
5545 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5546 (if (> tmp 0)
5547 tmp
5548 1))
5549 (cdr (gnus-active group)))))
5550 nil)
5551 (t
5552 nil))))
eec82323 5553
23f87bed 5554 (gnus-summary-setup-default-charset)
eec82323
LMI
5555
5556 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5557 (when (gnus-virtual-group-p group)
5558 (setq cached gnus-newsgroup-cached))
5559
5560 (setq gnus-newsgroup-unreads
23f87bed
MB
5561 (gnus-sorted-ndifference
5562 (gnus-sorted-ndifference gnus-newsgroup-unreads
5563 gnus-newsgroup-marked)
eec82323
LMI
5564 gnus-newsgroup-dormant))
5565
5566 (setq gnus-newsgroup-processable nil)
5567
5568 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5569
23f87bed
MB
5570 ;; Adjust and set lists of article marks.
5571 (when info
5572 (gnus-adjust-marked-articles info))
6748645f
LMI
5573 (if (setq articles select-articles)
5574 (setq gnus-newsgroup-unselected
23f87bed 5575 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5576 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5577
5578 (cond
5579 ((null articles)
5580 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5581 'quit)
5582 ((eq articles 0) nil)
5583 (t
5584 ;; Init the dependencies hash table.
5585 (setq gnus-newsgroup-dependencies
5586 (gnus-make-hashtable (length articles)))
16409b0b 5587 (gnus-set-global-variables)
eec82323 5588 ;; Retrieve the headers and read them in.
23f87bed
MB
5589
5590 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5591
5592 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5593 (when cached
5594 (setq gnus-newsgroup-cached cached))
5595
5596 ;; Suppress duplicates?
5597 (when gnus-suppress-duplicates
5598 (gnus-dup-suppress-articles))
5599
5600 ;; Set the initial limit.
5601 (setq gnus-newsgroup-limit (copy-sequence articles))
5602 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5603 (setq fetched-articles
5604 (mapcar (lambda (headers) (mail-header-number headers))
5605 gnus-newsgroup-headers))
5606 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5607 (setq gnus-newsgroup-unreads
23f87bed
MB
5608 (gnus-sorted-nintersection
5609 gnus-newsgroup-unreads fetched-articles))
5610 (gnus-compute-unseen-list)
5611
eec82323
LMI
5612 ;; Removed marked articles that do not exist.
5613 (gnus-update-missing-marks
23f87bed 5614 (gnus-sorted-difference articles fetched-articles))
eec82323 5615 ;; We might want to build some more threads first.
6748645f
LMI
5616 (when (and gnus-fetch-old-headers
5617 (eq gnus-headers-retrieved-by 'nov))
5618 (if (eq gnus-fetch-old-headers 'invisible)
5619 (gnus-build-all-threads)
5620 (gnus-build-old-threads)))
5621 ;; Let the Gnus agent mark articles as read.
5622 (when gnus-agent
5623 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5624 ;; Remove list identifiers from subject
5625 (when gnus-list-identifiers
5626 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5627 ;; Check whether auto-expire is to be done in this group.
5628 (setq gnus-newsgroup-auto-expire
5629 (gnus-group-auto-expirable-p group))
5630 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5631 (unless (and gnus-single-article-buffer
5632 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5633 (gnus-article-setup-buffer))
5634 ;; First and last article in this newsgroup.
5635 (when gnus-newsgroup-headers
5636 (setq gnus-newsgroup-begin
5637 (mail-header-number (car gnus-newsgroup-headers))
5638 gnus-newsgroup-end
5639 (mail-header-number
5640 (gnus-last-element gnus-newsgroup-headers))))
5641 ;; GROUP is successfully selected.
5642 (or gnus-newsgroup-headers t)))))
5643
23f87bed
MB
5644(defun gnus-compute-unseen-list ()
5645 ;; The `seen' marks are treated specially.
5646 (if (not gnus-newsgroup-seen)
5647 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5648 (setq gnus-newsgroup-unseen
5649 (gnus-inverse-list-range-intersection
5650 gnus-newsgroup-articles gnus-newsgroup-seen))))
5651
d09ae6ca
GM
5652(declare-function gnus-get-predicate "gnus-agent" (predicate))
5653
23f87bed
MB
5654(defun gnus-summary-display-make-predicate (display)
5655 (require 'gnus-agent)
5656 (when (= (length display) 1)
5657 (setq display (car display)))
5658 (unless gnus-summary-display-cache
5659 (dolist (elem (append '((unread . unread)
5660 (read . read)
5661 (unseen . unseen))
5662 gnus-article-mark-lists))
5663 (push (cons (cdr elem)
5664 (gnus-byte-compile
5665 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5666 gnus-summary-display-cache)))
5667 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5668 (gnus-category-predicate-cache gnus-summary-display-cache))
5669 (gnus-get-predicate display)))
5670
5671;; Uses the dynamically bound `number' variable.
9efa445f 5672(defvar number)
23f87bed
MB
5673(defun gnus-article-marked-p (type &optional article)
5674 (let ((article (or article number)))
5675 (cond
5676 ((eq type 'tick)
5677 (memq article gnus-newsgroup-marked))
5678 ((eq type 'spam)
5679 (memq article gnus-newsgroup-spam-marked))
5680 ((eq type 'unsend)
5681 (memq article gnus-newsgroup-unsendable))
5682 ((eq type 'undownload)
5683 (memq article gnus-newsgroup-undownloaded))
5684 ((eq type 'download)
5685 (memq article gnus-newsgroup-downloadable))
5686 ((eq type 'unread)
5687 (memq article gnus-newsgroup-unreads))
5688 ((eq type 'read)
5689 (memq article gnus-newsgroup-reads))
5690 ((eq type 'dormant)
5691 (memq article gnus-newsgroup-dormant) )
5692 ((eq type 'expire)
5693 (memq article gnus-newsgroup-expirable))
5694 ((eq type 'reply)
5695 (memq article gnus-newsgroup-replied))
5696 ((eq type 'killed)
5697 (memq article gnus-newsgroup-killed))
5698 ((eq type 'bookmark)
5699 (assq article gnus-newsgroup-bookmarks))
5700 ((eq type 'score)
5701 (assq article gnus-newsgroup-scored))
5702 ((eq type 'save)
5703 (memq article gnus-newsgroup-saved))
5704 ((eq type 'cache)
5705 (memq article gnus-newsgroup-cached))
5706 ((eq type 'forward)
5707 (memq article gnus-newsgroup-forwarded))
5708 ((eq type 'seen)
5709 (not (memq article gnus-newsgroup-unseen)))
5710 ((eq type 'recent)
5711 (memq article gnus-newsgroup-recent))
5712 (t t))))
5713
eec82323 5714(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5715 "Find out what articles the user wants to read."
26c9afc3 5716 (let* ((articles
eec82323
LMI
5717 ;; Select all articles if `read-all' is non-nil, or if there
5718 ;; are no unread articles.
5719 (if (or read-all
5720 (and (zerop (length gnus-newsgroup-marked))
5721 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5722 ;; Fetch all if the predicate is non-nil.
5723 gnus-newsgroup-display)
5724 ;; We want to select the headers for all the articles in
5725 ;; the group, so we select either all the active
5726 ;; articles in the group, or (if that's nil), the
5727 ;; articles in the cache.
16409b0b 5728 (or
4b70e299 5729 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5730 (let ((active (gnus-active group)))
5731 (gnus-uncompress-range
5732 (cons (max (car active)
4b70e299
MB
5733 (- (cdr active)
5734 gnus-newsgroup-maximum-articles
5735 -1))
11abff8e
MB
5736 (cdr active))))
5737 (gnus-uncompress-range (gnus-active group)))
16409b0b 5738 (gnus-cache-articles-in-group group))
23f87bed
MB
5739 ;; Select only the "normal" subset of articles.
5740 (gnus-sorted-nunion
5741 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5742 gnus-newsgroup-unreads)))
eec82323
LMI
5743 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5744 (scored (length scored-list))
5745 (number (length articles))
5746 (marked (+ (length gnus-newsgroup-marked)
5747 (length gnus-newsgroup-dormant)))
5748 (select
5749 (cond
5750 ((numberp read-all)
5751 read-all)
23f87bed
MB
5752 ((numberp gnus-newsgroup-display)
5753 gnus-newsgroup-display)
eec82323
LMI
5754 (t
5755 (condition-case ()
5756 (cond
5757 ((and (or (<= scored marked) (= scored number))
5758 (numberp gnus-large-newsgroup)
5759 (> number gnus-large-newsgroup))
23f87bed
MB
5760 (let* ((cursor-in-echo-area nil)
5761 (initial (gnus-parameter-large-newsgroup-initial
5762 gnus-newsgroup-name))
5763 (input
5764 (read-string
5765 (format
5766 "How many articles from %s (%s %d): "
01c52d31 5767 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5768 (if initial "max" "default")
5769 number)
5770 (if initial
5771 (cons (number-to-string initial)
5772 0)))))
eec82323
LMI
5773 (if (string-match "^[ \t]*$" input) number input)))
5774 ((and (> scored marked) (< scored number)
5775 (> (- scored number) 20))
5776 (let ((input
5777 (read-string
5778 (format "%s %s (%d scored, %d total): "
5779 "How many articles from"
23f87bed
MB
5780 (gnus-group-decoded-name group)
5781 scored number))))
eec82323
LMI
5782 (if (string-match "^[ \t]*$" input)
5783 number input)))
5784 (t number))
d4dfaa19
DL
5785 (quit
5786 (message "Quit getting the articles to read")
5787 nil))))))
eec82323
LMI
5788 (setq select (if (stringp select) (string-to-number select) select))
5789 (if (or (null select) (zerop select))
5790 select
5791 (if (and (not (zerop scored)) (<= (abs select) scored))
5792 (progn
5793 (setq articles (sort scored-list '<))
5794 (setq number (length articles)))
5795 (setq articles (copy-sequence articles)))
5796
5797 (when (< (abs select) number)
5798 (if (< select 0)
5799 ;; Select the N oldest articles.
5800 (setcdr (nthcdr (1- (abs select)) articles) nil)
5801 ;; Select the N most recent articles.
5802 (setq articles (nthcdr (- number select) articles))))
5803 (setq gnus-newsgroup-unselected
23f87bed 5804 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5805 (when gnus-alter-articles-to-read-function
23f87bed 5806 (setq articles
a1506d29 5807 (sort
16409b0b 5808 (funcall gnus-alter-articles-to-read-function
23f87bed 5809 gnus-newsgroup-name articles)
16409b0b 5810 '<)))
eec82323
LMI
5811 articles)))
5812
5813(defun gnus-killed-articles (killed articles)
5814 (let (out)
5815 (while articles
5816 (when (inline (gnus-member-of-range (car articles) killed))
5817 (push (car articles) out))
5818 (setq articles (cdr articles)))
5819 out))
5820
5821(defun gnus-uncompress-marks (marks)
5822 "Uncompress the mark ranges in MARKS."
5823 (let ((uncompressed '(score bookmark))
5824 out)
5825 (while marks
5826 (if (memq (caar marks) uncompressed)
5827 (push (car marks) out)
5828 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5829 (setq marks (cdr marks)))
5830 out))
5831
23f87bed
MB
5832(defun gnus-article-mark-to-type (mark)
5833 "Return the type of MARK."
5834 (or (cadr (assq mark gnus-article-special-mark-lists))
5835 'list))
5836
5837(defun gnus-article-unpropagatable-p (mark)
5838 "Return whether MARK should be propagated to back end."
5839 (memq mark gnus-article-unpropagated-mark-lists))
5840
eec82323 5841(defun gnus-adjust-marked-articles (info)
16409b0b 5842 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5843 (let* ((marked-lists (gnus-info-marks info))
5844 (active (gnus-active (gnus-info-group info)))
5845 (min (car active))
5846 (max (cdr active))
5847 (types gnus-article-mark-lists)
54506618
MB
5848 marks var articles article mark mark-type
5849 bgn end)
eec82323 5850
23f87bed
MB
5851 (dolist (marks marked-lists)
5852 (setq mark (car marks)
5853 mark-type (gnus-article-mark-to-type mark)
5854 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5855
23f87bed
MB
5856 ;; We set the variable according to the type of the marks list,
5857 ;; and then adjust the marks to a subset of the active articles.
eec82323 5858 (cond
54506618 5859 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5860 ((eq mark-type 'list)
54506618
MB
5861 ;; Simultaneously uncompress and clip to active range
5862 ;; See gnus-uncompress-range for a description of possible marks
5863 (let (l lh)
5864 (if (not (cadr marks))
5865 (set var nil)
5866 (setq articles (if (numberp (cddr marks))
5867 (list (cdr marks))
5868 (cdr marks))
5869 lh (cons nil nil)
5870 l lh)
5871
5872 (while (setq article (pop articles))
5873 (cond ((consp article)
5874 (setq bgn (max (car article) min)
5875 end (min (cdr article) max))
5876 (while (<= bgn end)
5877 (setq l (setcdr l (cons bgn nil))
5878 bgn (1+ bgn))))
5879 ((and (<= min article)
5880 (>= max article))
5881 (setq l (setcdr l (cons article nil))))))
5882 (set var (cdr lh)))))
eec82323 5883 ;; Adjust assocs.
23f87bed
MB
5884 ((eq mark-type 'tuple)
5885 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5886 (when (not (listp (cdr (symbol-value var))))
5887 (set var (list (symbol-value var))))
5888 (when (not (listp (cdr articles)))
5889 (setq articles (list articles)))
eec82323
LMI
5890 (while articles
5891 (when (or (not (consp (setq article (pop articles))))
5892 (< (car article) min)
5893 (> (car article) max))
23f87bed
MB
5894 (set var (delq article (symbol-value var))))))
5895 ;; Adjust ranges (sloppily).
5896 ((eq mark-type 'range)
5897 (cond
5898 ((eq mark 'seen)
5899 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5900 ;; It should be (seen (NUM1 . NUM2)).
5901 (when (numberp (cddr marks))
5902 (setcdr marks (list (cdr marks))))
5903 (setq articles (cdr marks))
5904 (while (and articles
5905 (or (and (consp (car articles))
5906 (> min (cdar articles)))
5907 (and (numberp (car articles))
5908 (> min (car articles)))))
5909 (pop articles))
5910 (set var articles))))))))
eec82323
LMI
5911
5912(defun gnus-update-missing-marks (missing)
6748645f 5913 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5914 (when missing
23f87bed 5915 (let (var m)
eec82323 5916 ;; Go through all types.
23f87bed
MB
5917 (dolist (elem gnus-article-mark-lists)
5918 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5919 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5920 (when (symbol-value var)
5921 ;; This list has articles. So we delete all missing
5922 ;; articles from it.
5923 (setq m missing)
5924 (while m
5925 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5926
5927(defun gnus-update-marks ()
5928 "Enter the various lists of marked articles into the newsgroup info list."
5929 (let ((types gnus-article-mark-lists)
5930 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5931 type list newmarked symbol delta-marks)
eec82323 5932 (when info
16409b0b 5933 ;; Add all marks lists to the list of marks lists.
eec82323 5934 (while (setq type (pop types))
16409b0b
GM
5935 (setq list (symbol-value
5936 (setq symbol
23f87bed 5937 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5938
16409b0b 5939 (when list
eec82323
LMI
5940 ;; Get rid of the entries of the articles that have the
5941 ;; default score.
5942 (when (and (eq (cdr type) 'score)
5943 gnus-save-score
5944 list)
5945 (let* ((arts list)
5946 (prev (cons nil list))
5947 (all prev))
5948 (while arts
5949 (if (or (not (consp (car arts)))
5950 (= (cdar arts) gnus-summary-default-score))
5951 (setcdr prev (cdr arts))
5952 (setq prev arts))
5953 (setq arts (cdr arts)))
16409b0b
GM
5954 (setq list (cdr all)))))
5955
23f87bed
MB
5956 (when (eq (cdr type) 'seen)
5957 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5958
5959 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5960 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5961
23f87bed
MB
5962 (when (and (gnus-check-backend-function
5963 'request-set-mark gnus-newsgroup-name)
5964 (not (gnus-article-unpropagatable-p (cdr type))))
5965 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5966 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5967 (add (gnus-remove-from-range
5968 (gnus-copy-sequence list) old)))
5969 (when add
5970 (push (list add 'add (list (cdr type))) delta-marks))
5971 (when del
5972 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5973
16409b0b
GM
5974 (when list
5975 (push (cons (cdr type) list) newmarked)))
5976
5977 (when delta-marks
5978 (unless (gnus-check-group gnus-newsgroup-name)
5979 (error "Can't open server for %s" gnus-newsgroup-name))
5980 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5981
eec82323
LMI
5982 ;; Enter these new marks into the info of the group.
5983 (if (nthcdr 3 info)
5984 (setcar (nthcdr 3 info) newmarked)
5985 ;; Add the marks lists to the end of the info.
5986 (when newmarked
5987 (setcdr (nthcdr 2 info) (list newmarked))))
5988
5989 ;; Cut off the end of the info if there's nothing else there.
5990 (let ((i 5))
5991 (while (and (> i 2)
5992 (not (nth i info)))
5993 (when (nthcdr (decf i) info)
5994 (setcdr (nthcdr i info) nil)))))))
5995
5996(defun gnus-set-mode-line (where)
16409b0b 5997 "Set the mode line of the article or summary buffers.
eec82323
LMI
5998If WHERE is `summary', the summary mode line format will be used."
5999 ;; Is this mode line one we keep updated?
16409b0b
GM
6000 (when (and (memq where gnus-updated-mode-lines)
6001 (symbol-value
6002 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6003 (let (mode-string)
c7a91ce1
SM
6004 ;; We evaluate this in the summary buffer since these
6005 ;; variables are buffer-local to that buffer.
6006 (with-current-buffer gnus-summary-buffer
6007 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6008 ;; below.
6009 (let* ((mformat (symbol-value
6010 (intern
6011 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6012 (gnus-tmp-group-name (gnus-mode-string-quote
6013 (gnus-group-decoded-name
6014 gnus-newsgroup-name)))
eec82323
LMI
6015 (gnus-tmp-article-number (or gnus-current-article 0))
6016 (gnus-tmp-unread gnus-newsgroup-unreads)
6017 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6018 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6019 (gnus-tmp-unread-and-unselected
6020 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6021 (zerop gnus-tmp-unselected))
6022 "")
6023 ((zerop gnus-tmp-unselected)
6024 (format "{%d more}" gnus-tmp-unread-and-unticked))
6025 (t (format "{%d(+%d) more}"
6026 gnus-tmp-unread-and-unticked
6027 gnus-tmp-unselected))))
6028 (gnus-tmp-subject
6029 (if (and gnus-current-headers
6030 (vectorp gnus-current-headers))
6031 (gnus-mode-string-quote
6032 (mail-header-subject gnus-current-headers))
6033 ""))
6034 bufname-length max-len
23f87bed 6035 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6036 (setq mode-string (eval mformat))
6037 (setq bufname-length (if (string-match "%b" mode-string)
6038 (- (length
6039 (buffer-name
6040 (if (eq where 'summary)
6041 nil
6042 (get-buffer gnus-article-buffer))))
6043 2)
6044 0))
6045 (setq max-len (max 4 (if gnus-mode-non-string-length
6046 (- (window-width)
6047 gnus-mode-non-string-length
6048 bufname-length)
6049 (length mode-string))))
6050 ;; We might have to chop a bit of the string off...
6051 (when (> (length mode-string) max-len)
6052 (setq mode-string
16409b0b 6053 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
6054 "...")))
6055 ;; Pad the mode string a bit.
6056 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
6057 ;; Update the mode line.
6058 (setq mode-line-buffer-identification
6059 (gnus-mode-line-buffer-identification (list mode-string)))
6060 (set-buffer-modified-p t))))
6061
6062(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6063 "Go through the HEADERS list and add all Xrefs to a hash table.
6064The resulting hash table is returned, or nil if no Xrefs were found."
6065 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6066 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6067 (xref-hashtb (gnus-make-hashtable))
6068 start group entry number xrefs header)
6069 (while headers
6070 (setq header (pop headers))
6071 (when (and (setq xrefs (mail-header-xref header))
6072 (not (memq (setq number (mail-header-number header))
6073 unreads)))
6074 (setq start 0)
6075 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6076 (setq start (match-end 0))
6077 (setq group (if prefix
6078 (concat prefix (substring xrefs (match-beginning 1)
6079 (match-end 1)))
6080 (substring xrefs (match-beginning 1) (match-end 1))))
6081 (setq number
e9bd5782 6082 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6083 (match-end 2))))
6084 (if (setq entry (gnus-gethash group xref-hashtb))
6085 (setcdr entry (cons number (cdr entry)))
6086 (gnus-sethash group (cons number nil) xref-hashtb)))))
6087 (and start xref-hashtb)))
6088
6089(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6090 "Look through all the headers and mark the Xrefs as read."
6091 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6092 name info xref-hashtb idlist method nth4)
eec82323
LMI
6093 (save-excursion
6094 (set-buffer gnus-group-buffer)
6095 (when (setq xref-hashtb
6096 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6097 (mapatoms
6098 (lambda (group)
6099 (unless (string= from-newsgroup (setq name (symbol-name group)))
6100 (setq idlist (symbol-value group))
6101 ;; Dead groups are not updated.
6102 (and (prog1
01c52d31 6103 (setq info (gnus-get-info name))
eec82323
LMI
6104 (when (stringp (setq nth4 (gnus-info-method info)))
6105 (setq nth4 (gnus-server-to-method nth4))))
6106 ;; Only do the xrefs if the group has the same
6107 ;; select method as the group we have just read.
6108 (or (gnus-methods-equal-p
6109 nth4 (gnus-find-method-for-group from-newsgroup))
6110 virtual
6111 (equal nth4 (setq method (gnus-find-method-for-group
6112 from-newsgroup)))
6113 (and (equal (car nth4) (car method))
6114 (equal (nth 1 nth4) (nth 1 method))))
6115 gnus-use-cross-reference
6116 (or (not (eq gnus-use-cross-reference t))
6117 virtual
6118 ;; Only do cross-references on subscribed
6119 ;; groups, if that is what is wanted.
6120 (<= (gnus-info-level info) gnus-level-subscribed))
6121 (gnus-group-make-articles-read name idlist))))
6122 xref-hashtb)))))
6123
6748645f 6124(defun gnus-compute-read-articles (group articles)
01c52d31 6125 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6126 (info (nth 2 entry))
6127 (active (gnus-active group))
6128 ninfo)
6129 (when entry
16409b0b 6130 ;; First peel off all invalid article numbers.
6748645f
LMI
6131 (when active
6132 (let ((ids articles)
6133 id first)
6134 (while (setq id (pop ids))
6135 (when (and first (> id (cdr active)))
6136 ;; We'll end up in this situation in one particular
6137 ;; obscure situation. If you re-scan a group and get
6138 ;; a new article that is cross-posted to a different
6139 ;; group that has not been re-scanned, you might get
6140 ;; crossposted article that has a higher number than
6141 ;; Gnus believes possible. So we re-activate this
6142 ;; group as well. This might mean doing the
6143 ;; crossposting thingy will *increase* the number
6144 ;; of articles in some groups. Tsk, tsk.
6145 (setq active (or (gnus-activate-group group) active)))
6146 (when (or (> id (cdr active))
6147 (< id (car active)))
6148 (setq articles (delq id articles))))))
6149 ;; If the read list is nil, we init it.
6150 (if (and active
6151 (null (gnus-info-read info))
6152 (> (car active) 1))
6153 (setq ninfo (cons 1 (1- (car active))))
6154 (setq ninfo (gnus-info-read info)))
6155 ;; Then we add the read articles to the range.
6156 (gnus-add-to-range
6157 ninfo (setq articles (sort articles '<))))))
6158
eec82323
LMI
6159(defun gnus-group-make-articles-read (group articles)
6160 "Update the info of GROUP to say that ARTICLES are read."
6161 (let* ((num 0)
01c52d31 6162 (entry (gnus-group-entry group))
eec82323
LMI
6163 (info (nth 2 entry))
6164 (active (gnus-active group))
6165 range)
6748645f
LMI
6166 (when entry
6167 (setq range (gnus-compute-read-articles group articles))
01c52d31 6168 (with-current-buffer gnus-group-buffer
6748645f
LMI
6169 (gnus-undo-register
6170 `(progn
6171 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6172 (gnus-info-set-read ',info ',(gnus-info-read info))
6173 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6174 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6175 (gnus-group-update-group ,group t))))
6176 ;; Add the read articles to the range.
6177 (gnus-info-set-read info range)
23f87bed 6178 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6179 ;; Then we have to re-compute how many unread
6180 ;; articles there are in this group.
6181 (when active
6182 (cond
6183 ((not range)
6184 (setq num (- (1+ (cdr active)) (car active))))
6185 ((not (listp (cdr range)))
6186 (setq num (- (cdr active) (- (1+ (cdr range))
6187 (car range)))))
6188 (t
6189 (while range
6190 (if (numberp (car range))
6191 (setq num (1+ num))
6192 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6193 (setq range (cdr range)))
6194 (setq num (- (cdr active) num))))
6195 ;; Update the number of unread articles.
6196 (setcar entry num)
6197 ;; Update the group buffer.
23f87bed
MB
6198 (unless (gnus-ephemeral-group-p group)
6199 (gnus-group-update-group group t))))))
eec82323 6200
eec82323
LMI
6201(defvar gnus-newsgroup-none-id 0)
6202
6203(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6204 (let ((cur nntp-server-buffer)
6205 (dependencies
6206 (or dependencies
01c52d31
MB
6207 (with-current-buffer gnus-summary-buffer
6208 gnus-newsgroup-dependencies)))
6209 headers id end ref number
16409b0b
GM
6210 (mail-parse-charset gnus-newsgroup-charset)
6211 (mail-parse-ignored-charsets
c7a91ce1
SM
6212 (save-current-buffer (condition-case nil
6213 (set-buffer gnus-summary-buffer)
6214 (error))
6215 gnus-newsgroup-ignored-charsets)))
6216 (with-current-buffer nntp-server-buffer
eec82323
LMI
6217 ;; Translate all TAB characters into SPACE characters.
6218 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6219 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6220 (ietf-drums-unfold-fws)
6748645f 6221 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6222 (let ((case-fold-search t)
6748645f 6223 in-reply-to header p lines chars)
eec82323 6224 (goto-char (point-min))
01ccbb85 6225 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6226 ;; do not begin with 2 or 3.
6227 (while (re-search-forward "^[23][0-9]+ " nil t)
6228 (setq id nil
6229 ref nil)
6230 ;; This implementation of this function, with nine
6231 ;; search-forwards instead of the one re-search-forward and
6232 ;; a case (which basically was the old function) is actually
01ccbb85 6233 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6234 ;; can't have everything, I guess. Speed and elegance
6235 ;; doesn't always go hand in hand.
6236 (setq
6237 header
6238 (vector
6239 ;; Number.
6240 (prog1
01c52d31 6241 (setq number (read cur))
eec82323
LMI
6242 (end-of-line)
6243 (setq p (point))
6244 (narrow-to-region (point)
6245 (or (and (search-forward "\n.\n" nil t)
6246 (- (point) 2))
6247 (point))))
6248 ;; Subject.
6249 (progn
6250 (goto-char p)
23f87bed 6251 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6252 (funcall gnus-decode-encoded-word-function
6253 (nnheader-header-value))
2bd3dcae 6254 "(none)"))
eec82323
LMI
6255 ;; From.
6256 (progn
6257 (goto-char p)
23f87bed 6258 (if (search-forward "\nfrom:" nil t)
343d6628 6259 (funcall gnus-decode-encoded-address-function
16409b0b 6260 (nnheader-header-value))
2bd3dcae 6261 "(nobody)"))
eec82323
LMI
6262 ;; Date.
6263 (progn
6264 (goto-char p)
23f87bed 6265 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6266 (nnheader-header-value) ""))
6267 ;; Message-ID.
6268 (progn
6269 (goto-char p)
6748645f
LMI
6270 (setq id (if (re-search-forward
6271 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6272 ;; We do it this way to make sure the Message-ID
6273 ;; is (somewhat) syntactically valid.
6274 (buffer-substring (match-beginning 1)
6275 (match-end 1))
eec82323
LMI
6276 ;; If there was no message-id, we just fake one
6277 ;; to make subsequent routines simpler.
01c52d31 6278 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6279 ;; References.
6280 (progn
6281 (goto-char p)
23f87bed 6282 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6283 (progn
6284 (setq end (point))
6285 (prog1
6286 (nnheader-header-value)
6287 (setq ref
6288 (buffer-substring
6289 (progn
6290 (end-of-line)
6291 (search-backward ">" end t)
6292 (1+ (point)))
6293 (progn
6294 (search-backward "<" end t)
6295 (point))))))
6296 ;; Get the references from the in-reply-to header if there
6297 ;; were no references and the in-reply-to header looks
6298 ;; promising.
23f87bed 6299 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6300 (setq in-reply-to (nnheader-header-value))
6301 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6302 (let (ref2)
6303 (setq ref (substring in-reply-to (match-beginning 0)
6304 (match-end 0)))
6305 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6306 (setq ref2 (substring in-reply-to (match-beginning 0)
6307 (match-end 0)))
6308 (when (> (length ref2) (length ref))
6309 (setq ref ref2)))
6310 ref)
eec82323
LMI
6311 (setq ref nil))))
6312 ;; Chars.
6748645f
LMI
6313 (progn
6314 (goto-char p)
6315 (if (search-forward "\nchars: " nil t)
6316 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6317 chars -1)
6318 -1))
eec82323
LMI
6319 ;; Lines.
6320 (progn
6321 (goto-char p)
6322 (if (search-forward "\nlines: " nil t)
a8151ef7 6323 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6324 lines -1)
6325 -1))
eec82323
LMI
6326 ;; Xref.
6327 (progn
6328 (goto-char p)
23f87bed 6329 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6330 (nnheader-header-value)))
6331 ;; Extra.
6332 (when gnus-extra-headers
6333 (let ((extra gnus-extra-headers)
6334 out)
6335 (while extra
6336 (goto-char p)
6337 (when (search-forward
23f87bed 6338 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6339 (push (cons (car extra) (nnheader-header-value))
6340 out))
6341 (pop extra))
6342 out))))
eec82323
LMI
6343 (when (equal id ref)
6344 (setq ref nil))
6748645f
LMI
6345
6346 (when gnus-alter-header-function
6347 (funcall gnus-alter-header-function header)
6348 (setq id (mail-header-id header)
6349 ref (gnus-parent-id (mail-header-references header))))
6350
6351 (when (setq header
6352 (gnus-dependencies-add-header
6353 header dependencies force-new))
eec82323
LMI
6354 (push header headers))
6355 (goto-char (point-max))
6356 (widen))
6357 (nreverse headers)))))
6358
eec82323
LMI
6359;; Goes through the xover lines and returns a list of vectors
6360(defun gnus-get-newsgroup-headers-xover (sequence &optional
6361 force-new dependencies
6362 group also-fetch-heads)
16409b0b
GM
6363 "Parse the news overview data in the server buffer.
6364Return a list of headers that match SEQUENCE (see
6365`nntp-retrieve-headers')."
eec82323
LMI
6366 ;; Get the Xref when the users reads the articles since most/some
6367 ;; NNTP servers do not include Xrefs when using XOVER.
6368 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6369 (let ((mail-parse-charset gnus-newsgroup-charset)
6370 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6371 (cur nntp-server-buffer)
eec82323 6372 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6373 (allp (cond
6374 ((eq gnus-read-all-available-headers t)
6375 t)
14e6dc54
MB
6376 ((and (stringp gnus-read-all-available-headers)
6377 group)
23f87bed
MB
6378 (string-match gnus-read-all-available-headers group))
6379 (t
6380 nil)))
eec82323 6381 number headers header)
c7a91ce1 6382 (with-current-buffer nntp-server-buffer
16409b0b 6383 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6384 ;; Allow the user to mangle the headers before parsing them.
6748645f 6385 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6386 (goto-char (point-min))
23f87bed
MB
6387 (gnus-parse-without-error
6388 (while (and (or sequence allp)
6389 (not (eobp)))
6390 (setq number (read cur))
6391 (when (not allp)
6392 (while (and sequence
6393 (< (car sequence) number))
6394 (setq sequence (cdr sequence))))
6395 (when (and (or allp
6396 (and sequence
6397 (eq number (car sequence))))
6398 (progn
6399 (setq sequence (cdr sequence))
6400 (setq header (inline
6401 (gnus-nov-parse-line
6402 number dependencies force-new)))))
6403 (push header headers))
6404 (forward-line 1)))
eec82323
LMI
6405 ;; A common bug in inn is that if you have posted an article and
6406 ;; then retrieves the active file, it will answer correctly --
6407 ;; the new article is included. However, a NOV entry for the
6408 ;; article may not have been generated yet, so this may fail.
6409 ;; We work around this problem by retrieving the last few
6410 ;; headers using HEAD.
6411 (if (or (not also-fetch-heads)
6412 (not sequence))
6413 ;; We (probably) got all the headers.
6414 (nreverse headers)
6415 (let ((gnus-nov-is-evil t))
6416 (nconc
6417 (nreverse headers)
23f87bed 6418 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6419 (gnus-get-newsgroup-headers))))))))
6420
6421(defun gnus-article-get-xrefs ()
6422 "Fill in the Xref value in `gnus-current-headers', if necessary.
6423This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6424 (let ((headers (with-current-buffer gnus-summary-buffer
6425 gnus-current-headers)))
eec82323
LMI
6426 (or (not gnus-use-cross-reference)
6427 (not headers)
6428 (and (mail-header-xref headers)
6429 (not (string= (mail-header-xref headers) "")))
6430 (let ((case-fold-search t)
6431 xref)
6432 (save-restriction
6433 (nnheader-narrow-to-headers)
6434 (goto-char (point-min))
16409b0b
GM
6435 (when (or (and (not (eobp))
6436 (eq (downcase (char-after)) ?x)
eec82323
LMI
6437 (looking-at "Xref:"))
6438 (search-forward "\nXref:" nil t))
6439 (goto-char (1+ (match-end 0)))
01c52d31 6440 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6441 (mail-header-set-xref headers xref)))))))
6442
6443(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6444 "Find article ID and insert the summary line for that article.
6445OLD-HEADER can either be a header or a line number to insert
6446the subject line on."
6447 (let* ((line (and (numberp old-header) old-header))
6448 (old-header (and (vectorp old-header) old-header))
6449 (header (cond ((and old-header use-old-header)
16409b0b
GM
6450 old-header)
6451 ((and (numberp id)
6452 (gnus-number-to-header id))
6453 (gnus-number-to-header id))
6454 (t
6455 (gnus-read-header id))))
6456 (number (and (numberp id) id))
6457 d)
eec82323
LMI
6458 (when header
6459 ;; Rebuild the thread that this article is part of and go to the
6460 ;; article we have fetched.
6461 (when (and (not gnus-show-threads)
6462 old-header)
6748645f
LMI
6463 (when (and number
6464 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6465 (goto-char (gnus-data-pos d))
6466 (gnus-data-remove
6467 number
01c52d31 6468 (- (point-at-bol)
eec82323 6469 (prog1
01c52d31 6470 (1+ (point-at-eol))
eec82323 6471 (gnus-delete-line))))))
23f87bed
MB
6472 ;; Remove list identifiers from subject.
6473 (when gnus-list-identifiers
6474 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6475 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6476 (when old-header
6477 (mail-header-set-number header (mail-header-number old-header)))
6478 (setq gnus-newsgroup-sparse
6479 (delq (setq number (mail-header-number header))
6480 gnus-newsgroup-sparse))
6481 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6482 (push number gnus-newsgroup-limit)
6483 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6484 (gnus-summary-goto-subject number nil t))
6485 (when (and (numberp number)
6486 (> number 0))
6487 ;; We have to update the boundaries even if we can't fetch the
6488 ;; article if ID is a number -- so that the next `P' or `N'
6489 ;; command will fetch the previous (or next) article even
6490 ;; if the one we tried to fetch this time has been canceled.
6491 (when (> number gnus-newsgroup-end)
6492 (setq gnus-newsgroup-end number))
6493 (when (< number gnus-newsgroup-begin)
6494 (setq gnus-newsgroup-begin number))
6495 (setq gnus-newsgroup-unselected
6496 (delq number gnus-newsgroup-unselected)))
6497 ;; Report back a success?
6498 (and header (mail-header-number header))))
6499
6500;;; Process/prefix in the summary buffer
6501
6502(defun gnus-summary-work-articles (n)
6748645f
LMI
6503 "Return a list of articles to be worked upon.
6504The prefix argument, the list of process marked articles, and the
6505current article will be taken into consideration."
c7a91ce1 6506 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6507 (cond
6508 (n
6509 ;; A numerical prefix has been given.
6510 (setq n (prefix-numeric-value n))
6511 (let ((backward (< n 0))
6512 (n (abs (prefix-numeric-value n)))
6513 articles article)
6514 (save-excursion
6515 (while
6516 (and (> n 0)
6517 (push (setq article (gnus-summary-article-number))
6518 articles)
6519 (if backward
6520 (gnus-summary-find-prev nil article)
6521 (gnus-summary-find-next nil article)))
6522 (decf n)))
6523 (nreverse articles)))
6524 ((and (gnus-region-active-p) (mark))
6525 (message "region active")
6526 ;; Work on the region between point and mark.
6527 (let ((max (max (point) (mark)))
6528 articles article)
6529 (save-excursion
7dafe00b 6530 (goto-char (min (point) (mark)))
6748645f
LMI
6531 (while
6532 (and
6533 (push (setq article (gnus-summary-article-number)) articles)
6534 (gnus-summary-find-next nil article)
6535 (< (point) max)))
6536 (nreverse articles))))
6537 (gnus-newsgroup-processable
6538 ;; There are process-marked articles present.
6539 ;; Save current state.
6540 (gnus-summary-save-process-mark)
6541 ;; Return the list.
6542 (reverse gnus-newsgroup-processable))
6543 (t
6544 ;; Just return the current article.
6545 (list (gnus-summary-article-number))))))
6546
6547(defmacro gnus-summary-iterate (arg &rest forms)
6548 "Iterate over the process/prefixed articles and do FORMS.
6549ARG is the interactive prefix given to the command. FORMS will be
6550executed with point over the summary line of the articles."
6551 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6552 `(let ((,articles (gnus-summary-work-articles ,arg)))
6553 (while ,articles
6554 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6555 ,@forms
6556 (pop ,articles)))))
6748645f
LMI
6557
6558(put 'gnus-summary-iterate 'lisp-indent-function 1)
6559(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6560
6561(defun gnus-summary-save-process-mark ()
6562 "Push the current set of process marked articles on the stack."
6563 (interactive)
6564 (push (copy-sequence gnus-newsgroup-processable)
6565 gnus-newsgroup-process-stack))
6566
6567(defun gnus-summary-kill-process-mark ()
6568 "Push the current set of process marked articles on the stack and unmark."
6569 (interactive)
6570 (gnus-summary-save-process-mark)
6571 (gnus-summary-unmark-all-processable))
6572
6573(defun gnus-summary-yank-process-mark ()
6574 "Pop the last process mark state off the stack and restore it."
6575 (interactive)
6576 (unless gnus-newsgroup-process-stack
6577 (error "Empty mark stack"))
6578 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6579
6580(defun gnus-summary-process-mark-set (set)
6581 "Make SET into the current process marked articles."
6582 (gnus-summary-unmark-all-processable)
01c52d31 6583 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6584
6585;;; Searching and stuff
6586
6587(defun gnus-summary-search-group (&optional backward use-level)
6588 "Search for next unread newsgroup.
6589If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6590 (with-current-buffer gnus-group-buffer
eec82323
LMI
6591 (when (gnus-group-search-forward
6592 backward nil (if use-level (gnus-group-group-level) nil))
6593 (gnus-group-group-name))))
6594
6595(defun gnus-summary-best-group (&optional exclude-group)
6596 "Find the name of the best unread group.
6597If EXCLUDE-GROUP, do not go to this group."
01c52d31 6598 (with-current-buffer gnus-group-buffer
eec82323
LMI
6599 (save-excursion
6600 (gnus-group-best-unread-group exclude-group))))
6601
23f87bed
MB
6602(defun gnus-summary-find-next (&optional unread article backward)
6603 (if backward
6604 (gnus-summary-find-prev unread article)
eec82323
LMI
6605 (let* ((dummy (gnus-summary-article-intangible-p))
6606 (article (or article (gnus-summary-article-number)))
23f87bed 6607 (data (gnus-data-find-list article))
eec82323
LMI
6608 result)
6609 (when (and (not dummy)
6610 (or (not gnus-summary-check-current)
6611 (not unread)
23f87bed
MB
6612 (not (gnus-data-unread-p (car data)))))
6613 (setq data (cdr data)))
eec82323
LMI
6614 (when (setq result
6615 (if unread
6616 (progn
23f87bed
MB
6617 (while data
6618 (unless (memq (gnus-data-number (car data))
6619 (cond
6620 ((eq gnus-auto-goto-ignores
6621 'always-undownloaded)
6622 gnus-newsgroup-undownloaded)
6623 (gnus-plugged
6624 nil)
6625 ((eq gnus-auto-goto-ignores
6626 'unfetched)
6627 gnus-newsgroup-unfetched)
6628 ((eq gnus-auto-goto-ignores
6629 'undownloaded)
6630 gnus-newsgroup-undownloaded)))
6631 (when (gnus-data-unread-p (car data))
6632 (setq result (car data)
6633 data nil)))
6634 (setq data (cdr data)))
eec82323 6635 result)
23f87bed 6636 (car data)))
eec82323
LMI
6637 (goto-char (gnus-data-pos result))
6638 (gnus-data-number result)))))
6639
6640(defun gnus-summary-find-prev (&optional unread article)
6641 (let* ((eobp (eobp))
6642 (article (or article (gnus-summary-article-number)))
23f87bed 6643 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6644 result)
6645 (when (and (not eobp)
6646 (or (not gnus-summary-check-current)
6647 (not unread)
23f87bed
MB
6648 (not (gnus-data-unread-p (car data)))))
6649 (setq data (cdr data)))
eec82323
LMI
6650 (when (setq result
6651 (if unread
6652 (progn
23f87bed
MB
6653 (while data
6654 (unless (memq (gnus-data-number (car data))
6655 (cond
6656 ((eq gnus-auto-goto-ignores
6657 'always-undownloaded)
6658 gnus-newsgroup-undownloaded)
6659 (gnus-plugged
6660 nil)
6661 ((eq gnus-auto-goto-ignores
6662 'unfetched)
6663 gnus-newsgroup-unfetched)
6664 ((eq gnus-auto-goto-ignores
6665 'undownloaded)
6666 gnus-newsgroup-undownloaded)))
6667 (when (gnus-data-unread-p (car data))
6668 (setq result (car data)
6669 data nil)))
6670 (setq data (cdr data)))
eec82323 6671 result)
23f87bed 6672 (car data)))
eec82323
LMI
6673 (goto-char (gnus-data-pos result))
6674 (gnus-data-number result))))
6675
6676(defun gnus-summary-find-subject (subject &optional unread backward article)
6677 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6678 (article (or article (gnus-summary-article-number)))
6679 (articles (gnus-data-list backward))
6680 (arts (gnus-data-find-list article articles))
6681 result)
6682 (when (or (not gnus-summary-check-current)
6683 (not unread)
6684 (not (gnus-data-unread-p (car arts))))
6685 (setq arts (cdr arts)))
6686 (while arts
6687 (and (or (not unread)
6688 (gnus-data-unread-p (car arts)))
6689 (vectorp (gnus-data-header (car arts)))
6690 (gnus-subject-equal
6691 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6692 (setq result (car arts)
6693 arts nil))
6694 (setq arts (cdr arts)))
6695 (and result
6696 (goto-char (gnus-data-pos result))
6697 (gnus-data-number result))))
6698
6699(defun gnus-summary-search-forward (&optional unread subject backward)
6700 "Search forward for an article.
6701If UNREAD, look for unread articles. If SUBJECT, look for
6702articles with that subject. If BACKWARD, search backward instead."
6703 (cond (subject (gnus-summary-find-subject subject unread backward))
6704 (backward (gnus-summary-find-prev unread))
6705 (t (gnus-summary-find-next unread))))
6706
6707(defun gnus-recenter (&optional n)
6708 "Center point in window and redisplay frame.
6709Also do horizontal recentering."
6710 (interactive "P")
6711 (when (and gnus-auto-center-summary
6712 (not (eq gnus-auto-center-summary 'vertical)))
6713 (gnus-horizontal-recenter))
6714 (recenter n))
6715
6716(defun gnus-summary-recenter ()
6717 "Center point in the summary window.
6718If `gnus-auto-center-summary' is nil, or the article buffer isn't
6719displayed, no centering will be performed."
6720 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6721 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6722 (interactive)
23f87bed
MB
6723 ;; The user has to want it.
6724 (when gnus-auto-center-summary
6725 (let* ((top (cond ((< (window-height) 4) 0)
6726 ((< (window-height) 7) 1)
6727 (t (if (numberp gnus-auto-center-summary)
6728 gnus-auto-center-summary
01c52d31 6729 (/ (1- (window-height)) 2)))))
23f87bed
MB
6730 (height (1- (window-height)))
6731 (bottom (save-excursion (goto-char (point-max))
6732 (forward-line (- height))
6733 (point)))
6734 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6735 (when (get-buffer-window gnus-article-buffer)
6736 ;; Only do recentering when the article buffer is displayed,
6737 ;; Set the window start to either `bottom', which is the biggest
6738 ;; possible valid number, or the second line from the top,
6739 ;; whichever is the least.
db7ebd73
MB
6740 (let ((top-pos (save-excursion (forward-line (- top)) (point))))
6741 (if (> bottom top-pos)
6742 ;; Keep the second line from the top visible
01c52d31 6743 (set-window-start window top-pos)
db7ebd73
MB
6744 ;; Try to keep the bottom line visible; if it's partially
6745 ;; obscured, either scroll one more line to make it fully
6746 ;; visible, or revert to using TOP-POS.
6747 (save-excursion
6748 (goto-char (point-max))
6749 (forward-line -1)
6750 (let ((last-line-start (point)))
6751 (goto-char bottom)
6752 (set-window-start window (point) t)
6753 (when (not (pos-visible-in-window-p last-line-start window))
6754 (forward-line 1)
6755 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6756 ;; Do horizontal recentering while we're at it.
6757 (when (and (get-buffer-window (current-buffer) t)
6758 (not (eq gnus-auto-center-summary 'vertical)))
6759 (let ((selected (selected-window)))
6760 (select-window (get-buffer-window (current-buffer) t))
6761 (gnus-summary-position-point)
6762 (gnus-horizontal-recenter)
6763 (select-window selected))))))
6764
6765(defun gnus-summary-jump-to-group (newsgroup)
6766 "Move point to NEWSGROUP in group mode buffer."
6767 ;; Keep update point of group mode buffer if visible.
6768 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6769 (save-window-excursion
6770 ;; Take care of tree window mode.
6771 (when (get-buffer-window gnus-group-buffer)
6772 (pop-to-buffer gnus-group-buffer))
6773 (gnus-group-jump-to-group newsgroup))
6774 (save-excursion
6775 ;; Take care of tree window mode.
c7a91ce1 6776 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6777 (pop-to-buffer gnus-group-buffer)
6778 (set-buffer gnus-group-buffer))
6779 (gnus-group-jump-to-group newsgroup))))
6780
6781;; This function returns a list of article numbers based on the
6782;; difference between the ranges of read articles in this group and
6783;; the range of active articles.
6784(defun gnus-list-of-unread-articles (group)
6785 (let* ((read (gnus-info-read (gnus-get-info group)))
6786 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6787 (last (or (cdr active)
6788 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6789 (bottom (if gnus-newsgroup-maximum-articles
6790 (max (car active)
6791 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6792 (car active)))
eec82323
LMI
6793 first nlast unread)
6794 ;; If none are read, then all are unread.
6795 (if (not read)
11abff8e 6796 (setq first bottom)
eec82323
LMI
6797 ;; If the range of read articles is a single range, then the
6798 ;; first unread article is the article after the last read
6799 ;; article. Sounds logical, doesn't it?
16409b0b 6800 (if (and (not (listp (cdr read)))
11abff8e 6801 (or (< (car read) bottom)
16409b0b
GM
6802 (progn (setq read (list read))
6803 nil)))
11abff8e 6804 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6805 ;; `read' is a list of ranges.
6806 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6807 (caar read)))
6808 1)
11abff8e 6809 (setq first bottom))
eec82323
LMI
6810 (while read
6811 (when first
6812 (while (< first nlast)
54506618
MB
6813 (setq unread (cons first unread)
6814 first (1+ first))))
eec82323
LMI
6815 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6816 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6817 (setq read (cdr read)))))
6818 ;; And add the last unread articles.
6819 (while (<= first last)
54506618
MB
6820 (setq unread (cons first unread)
6821 first (1+ first)))
eec82323 6822 ;; Return the list of unread articles.
6748645f 6823 (delq 0 (nreverse unread))))
eec82323
LMI
6824
6825(defun gnus-list-of-read-articles (group)
6826 "Return a list of unread, unticked and non-dormant articles."
6827 (let* ((info (gnus-get-info group))
6828 (marked (gnus-info-marks info))
6829 (active (gnus-active group)))
6830 (and info active
23f87bed
MB
6831 (gnus-list-range-difference
6832 (gnus-list-range-difference
6833 (gnus-sorted-complement
11abff8e 6834 (gnus-uncompress-range
4b70e299 6835 (if gnus-newsgroup-maximum-articles
11abff8e 6836 (cons (max (car active)
4b70e299
MB
6837 (- (cdr active)
6838 gnus-newsgroup-maximum-articles
6839 -1))
11abff8e
MB
6840 (cdr active))
6841 active))
23f87bed
MB
6842 (gnus-list-of-unread-articles group))
6843 (cdr (assq 'dormant marked)))
6844 (cdr (assq 'tick marked))))))
eec82323 6845
54506618
MB
6846;; This function returns a sequence of article numbers based on the
6847;; difference between the ranges of read articles in this group and
6848;; the range of active articles.
6849(defun gnus-sequence-of-unread-articles (group)
6850 (let* ((read (gnus-info-read (gnus-get-info group)))
6851 (active (or (gnus-active group) (gnus-activate-group group)))
6852 (last (cdr active))
4b70e299
MB
6853 (bottom (if gnus-newsgroup-maximum-articles
6854 (max (car active)
6855 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6856 (car active)))
54506618
MB
6857 first nlast unread)
6858 ;; If none are read, then all are unread.
6859 (if (not read)
11abff8e 6860 (setq first bottom)
54506618
MB
6861 ;; If the range of read articles is a single range, then the
6862 ;; first unread article is the article after the last read
6863 ;; article. Sounds logical, doesn't it?
6864 (if (and (not (listp (cdr read)))
11abff8e 6865 (or (< (car read) bottom)
54506618
MB
6866 (progn (setq read (list read))
6867 nil)))
11abff8e 6868 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6869 ;; `read' is a list of ranges.
6870 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6871 (caar read)))
6872 1)
11abff8e 6873 (setq first bottom))
54506618
MB
6874 (while read
6875 (when first
6876 (push (cons first nlast) unread))
6877 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6878 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6879 (setq read (cdr read)))))
6880 ;; And add the last unread articles.
ba0226dd
MB
6881 (cond ((not (and first last))
6882 nil)
6883 ((< first last)
6884 (push (cons first last) unread))
6885 ((= first last)
6886 (push first unread)))
54506618
MB
6887 ;; Return the sequence of unread articles.
6888 (delq 0 (nreverse unread))))
6889
eec82323
LMI
6890;; Various summary commands
6891
6748645f
LMI
6892(defun gnus-summary-select-article-buffer ()
6893 "Reconfigure windows to show article buffer."
6894 (interactive)
6895 (if (not (gnus-buffer-live-p gnus-article-buffer))
6896 (error "There is no article buffer for this summary buffer")
6897 (gnus-configure-windows 'article)
6898 (select-window (get-buffer-window gnus-article-buffer))))
6899
eec82323
LMI
6900(defun gnus-summary-universal-argument (arg)
6901 "Perform any operation on all articles that are process/prefixed."
6902 (interactive "P")
eec82323
LMI
6903 (let ((articles (gnus-summary-work-articles arg))
6904 func article)
6905 (if (eq
6906 (setq
6907 func
6908 (key-binding
6909 (read-key-sequence
6910 (substitute-command-keys
16409b0b 6911 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6912 'undefined)
6913 (gnus-error 1 "Undefined key")
6914 (save-excursion
6915 (while articles
6916 (gnus-summary-goto-subject (setq article (pop articles)))
6917 (let (gnus-newsgroup-processable)
6918 (command-execute func))
6919 (gnus-summary-remove-process-mark article)))))
6920 (gnus-summary-position-point))
6921
6922(defun gnus-summary-toggle-truncation (&optional arg)
6923 "Toggle truncation of summary lines.
23f87bed 6924With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6925 (interactive "P")
6926 (setq truncate-lines
6927 (if (null arg) (not truncate-lines)
6928 (> (prefix-numeric-value arg) 0)))
6929 (redraw-display))
6930
23f87bed
MB
6931(defun gnus-summary-find-for-reselect ()
6932 "Return the number of an article to stay on across a reselect.
6933The current article is considered, then following articles, then previous
6934articles. An article is sought which is not cancelled and isn't a temporary
6935insertion from another group. If there's no such then return a dummy 0."
6936 (let (found)
6937 (dolist (rev '(nil t))
6938 (unless found ; don't demand the reverse list if we don't need it
6939 (let ((data (gnus-data-find-list
6940 (gnus-summary-article-number) (gnus-data-list rev))))
6941 (while (and data (not found))
6942 (if (and (< 0 (gnus-data-number (car data)))
6943 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6944 (setq found (gnus-data-number (car data))))
6945 (setq data (cdr data))))))
6946 (or found 0)))
6947
eec82323
LMI
6948(defun gnus-summary-reselect-current-group (&optional all rescan)
6949 "Exit and then reselect the current newsgroup.
6950The prefix argument ALL means to select all articles."
6951 (interactive "P")
eec82323
LMI
6952 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6953 (error "Ephemeral groups can't be reselected"))
23f87bed 6954 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6955 (group gnus-newsgroup-name))
6956 (setq gnus-newsgroup-begin nil)
23f87bed 6957 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6958 ;; We have to adjust the point of group mode buffer because
6959 ;; point was moved to the next unread newsgroup by exiting.
6960 (gnus-summary-jump-to-group group)
6961 (when rescan
6962 (save-excursion
6963 (gnus-group-get-new-news-this-group 1)))
6964 (gnus-group-read-group all t)
6965 (gnus-summary-goto-subject current-subject nil t)))
6966
6967(defun gnus-summary-rescan-group (&optional all)
6968 "Exit the newsgroup, ask for new articles, and select the newsgroup."
6969 (interactive "P")
6970 (gnus-summary-reselect-current-group all t))
6971
6972(defun gnus-summary-update-info (&optional non-destructive)
6973 (save-excursion
6974 (let ((group gnus-newsgroup-name))
6748645f
LMI
6975 (when group
6976 (when gnus-newsgroup-kill-headers
6977 (setq gnus-newsgroup-killed
6978 (gnus-compress-sequence
23f87bed
MB
6979 (gnus-sorted-union
6980 (gnus-list-range-intersection
6981 gnus-newsgroup-unselected gnus-newsgroup-killed)
6982 gnus-newsgroup-unreads)
6748645f
LMI
6983 t)))
6984 (unless (listp (cdr gnus-newsgroup-killed))
6985 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
6986 (let ((headers gnus-newsgroup-headers))
6987 ;; Set the new ranges of read articles.
01c52d31 6988 (with-current-buffer gnus-group-buffer
6748645f
LMI
6989 (gnus-undo-force-boundary))
6990 (gnus-update-read-articles
23f87bed
MB
6991 group (gnus-sorted-union
6992 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
6993 ;; Set the current article marks.
6994 (let ((gnus-newsgroup-scored
6995 (if (and (not gnus-save-score)
6996 (not non-destructive))
6997 nil
6998 gnus-newsgroup-scored)))
6999 (save-excursion
7000 (gnus-update-marks)))
7001 ;; Do the cross-ref thing.
7002 (when gnus-use-cross-reference
7003 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7004 ;; Do not switch windows but change the buffer to work.
a8151ef7 7005 (set-buffer gnus-group-buffer)
6748645f
LMI
7006 (unless (gnus-ephemeral-group-p group)
7007 (gnus-group-update-group group)))))))
eec82323
LMI
7008
7009(defun gnus-summary-save-newsrc (&optional force)
7010 "Save the current number of read/marked articles in the dribble buffer.
7011The dribble buffer will then be saved.
7012If FORCE (the prefix), also save the .newsrc file(s)."
7013 (interactive "P")
7014 (gnus-summary-update-info t)
7015 (if force
7016 (gnus-save-newsrc-file)
7017 (gnus-dribble-save)))
7018
704f1663
GM
7019(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7020
23f87bed 7021(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7022 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7023`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7024 (interactive)
7025 (gnus-set-global-variables)
16409b0b 7026 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7027 (with-current-buffer gnus-article-buffer
16409b0b
GM
7028 (mm-destroy-parts gnus-article-mime-handles)
7029 ;; Set it to nil for safety reason.
7030 (setq gnus-article-mime-handle-alist nil)
7031 (setq gnus-article-mime-handles nil)))
eec82323 7032 (gnus-kill-save-kill-buffer)
6748645f 7033 (gnus-async-halt-prefetch)
eec82323
LMI
7034 (let* ((group gnus-newsgroup-name)
7035 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7036 (gnus-group-is-exiting-p t)
eec82323 7037 (mode major-mode)
23f87bed 7038 (group-point nil)
eec82323 7039 (buf (current-buffer)))
16409b0b
GM
7040 (unless quit-config
7041 ;; Do adaptive scoring, and possibly save score files.
7042 (when gnus-newsgroup-adaptive
7043 (gnus-score-adaptive))
7044 (when gnus-use-scoring
7045 (gnus-score-save)))
6748645f 7046 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7047 ;; If we have several article buffers, we kill them at exit.
7048 (unless gnus-single-article-buffer
01c52d31
MB
7049 (when (gnus-buffer-live-p gnus-article-buffer)
7050 (with-current-buffer gnus-article-buffer
7051 ;; Don't kill sticky article buffers
7052 (unless (eq major-mode 'gnus-sticky-article-mode)
7053 (gnus-kill-buffer gnus-article-buffer)
7054 (setq gnus-article-current nil))))
7055 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7056 (when gnus-use-cache
7057 (gnus-cache-possibly-remove-articles)
7058 (gnus-cache-save-buffers))
7059 (gnus-async-prefetch-remove-group group)
7060 (when gnus-suppress-duplicates
7061 (gnus-dup-enter-articles))
7062 (when gnus-use-trees
7063 (gnus-tree-close group))
16409b0b
GM
7064 (when gnus-use-cache
7065 (gnus-cache-write-active))
6748645f
LMI
7066 ;; Remove entries for this group.
7067 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7068 ;; Make all changes in this group permanent.
7069 (unless quit-config
6748645f 7070 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7071 (gnus-summary-update-info))
eec82323
LMI
7072 (gnus-close-group group)
7073 ;; Make sure where we were, and go to next newsgroup.
7074 (set-buffer gnus-group-buffer)
7075 (unless quit-config
7076 (gnus-group-jump-to-group group))
6748645f
LMI
7077 (gnus-run-hooks 'gnus-summary-exit-hook)
7078 (unless (or quit-config
01c52d31 7079 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7080 ;; If this group has disappeared from the summary
7081 ;; buffer, don't skip forwards.
7082 (not (string= group (gnus-group-group-name))))
eec82323 7083 (gnus-group-next-unread-group 1))
a8151ef7 7084 (setq group-point (point))
eec82323
LMI
7085 (if temporary
7086 nil ;Nothing to do.
eec82323
LMI
7087 (set-buffer buf)
7088 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7089 (progn
7090 (gnus-deaden-summary)
7091 (setq mode nil))
eec82323
LMI
7092 ;; We set all buffer-local variables to nil. It is unclear why
7093 ;; this is needed, but if we don't, buffer-local variables are
7094 ;; not garbage-collected, it seems. This would the lead to en
7095 ;; ever-growing Emacs.
7096 (gnus-summary-clear-local-variables)
23f87bed
MB
7097 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7098 (gnus-summary-clear-local-variables))
eec82323
LMI
7099 (when (get-buffer gnus-article-buffer)
7100 (bury-buffer gnus-article-buffer))
eec82323
LMI
7101 ;; Return to group mode buffer.
7102 (when (eq mode 'gnus-summary-mode)
7103 (gnus-kill-buffer buf)))
7104 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7105 (set-buffer gnus-group-buffer)
7106 (if quit-config
7107 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7108 (goto-char group-point)
7109 ;; If gnus-group-buffer is already displayed, make sure we also move
7110 ;; the cursor in the window that displays it.
7111 (let ((win (get-buffer-window (current-buffer) 0)))
7112 (if win (set-window-point win (point))))
d61c212b 7113 (unless leave-hidden
4e90f2b9 7114 (gnus-configure-windows 'group 'force)))
6748645f 7115 ;; Clear the current group name.
eec82323
LMI
7116 (unless quit-config
7117 (setq gnus-newsgroup-name nil)))))
7118
7119(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7120(defun gnus-summary-exit-no-update (&optional no-questions)
7121 "Quit reading current newsgroup without updating read article info."
7122 (interactive)
eec82323 7123 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7124 (gnus-group-is-exiting-p t)
7125 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7126 (quit-config (gnus-group-quit-config group)))
7127 (when (or no-questions
7128 gnus-expert-user
7129 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7130 (gnus-async-halt-prefetch)
23f87bed 7131 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7132 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7133 (with-current-buffer gnus-article-buffer
16409b0b
GM
7134 (mm-destroy-parts gnus-article-mime-handles)
7135 ;; Set it to nil for safety reason.
7136 (setq gnus-article-mime-handle-alist nil)
7137 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7138 ;; If we have several article buffers, we kill them at exit.
7139 (unless gnus-single-article-buffer
7140 (gnus-kill-buffer gnus-article-buffer)
7141 (gnus-kill-buffer gnus-original-article-buffer)
7142 (setq gnus-article-current nil))
7143 (if (not gnus-kill-summary-on-exit)
7144 (gnus-deaden-summary)
7145 (gnus-close-group group)
7146 (gnus-summary-clear-local-variables)
23f87bed
MB
7147 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7148 (gnus-summary-clear-local-variables))
7149 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7150 (unless gnus-single-article-buffer
7151 (setq gnus-article-current nil))
7152 (when gnus-use-trees
7153 (gnus-tree-close group))
7154 (gnus-async-prefetch-remove-group group)
7155 (when (get-buffer gnus-article-buffer)
7156 (bury-buffer gnus-article-buffer))
7157 ;; Return to the group buffer.
7158 (gnus-configure-windows 'group 'force)
7159 ;; Clear the current group name.
7160 (setq gnus-newsgroup-name nil)
23f87bed
MB
7161 (unless (gnus-ephemeral-group-p group)
7162 (gnus-group-update-group group))
eec82323
LMI
7163 (when (equal (gnus-group-group-name) group)
7164 (gnus-group-next-unread-group 1))
7165 (when quit-config
23f87bed 7166 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7167
7168(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7169 "Handle movement when leaving an ephemeral group.
7170The state which existed when entering the ephemeral is reset."
eec82323
LMI
7171 (if (not (buffer-name (car quit-config)))
7172 (gnus-configure-windows 'group 'force)
7173 (set-buffer (car quit-config))
7174 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7175 (gnus-set-global-variables))
7176 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7177 (save-current-buffer
23f87bed
MB
7178 ;; The `gnus-summary-buffer' variable may point
7179 ;; to the old summary buffer when using a single
7180 ;; article buffer.
7181 (unless (gnus-buffer-live-p gnus-summary-buffer)
7182 (set-buffer gnus-group-buffer))
7183 (set-buffer gnus-summary-buffer)
7184 (gnus-set-global-variables))))
eec82323 7185 (if (or (eq (cdr quit-config) 'article)
23f87bed 7186 (eq (cdr quit-config) 'pick))
01c52d31
MB
7187 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7188 (gnus-configure-windows 'pick 'force)
7189 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7190 (gnus-configure-windows (cdr quit-config) 'force))
7191 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7192 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7193 next-unread-noselect))
7194 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7195 'next-noselect)
7196 (gnus-summary-next-subject 1 nil t))
7197 ((eq gnus-auto-select-on-ephemeral-exit
7198 'next-unread-noselect)
7199 (gnus-summary-next-subject 1 t t))))
7200 ;; Hide the article buffer which displays the article different
7201 ;; from the one that the cursor points to in the summary buffer.
7202 (gnus-configure-windows 'summary 'force))
7203 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7204 (gnus-summary-next-subject 1))
7205 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7206 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7207 (gnus-summary-recenter)
7208 (gnus-summary-position-point))))
7209
7210;;; Dead summaries.
7211
7212(defvar gnus-dead-summary-mode-map nil)
7213
7214(unless gnus-dead-summary-mode-map
7215 (setq gnus-dead-summary-mode-map (make-keymap))
7216 (suppress-keymap gnus-dead-summary-mode-map)
7217 (substitute-key-definition
7218 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
23f87bed
MB
7219 (dolist (key '("\C-d" "\r" "\177" [delete]))
7220 (define-key gnus-dead-summary-mode-map
7221 key 'gnus-summary-wake-up-the-dead))
7222 (dolist (key '("q" "Q"))
7223 (define-key gnus-dead-summary-mode-map key 'bury-buffer)))
eec82323
LMI
7224
7225(defvar gnus-dead-summary-mode nil
7226 "Minor mode for Gnus summary buffers.")
7227
7228(defun gnus-dead-summary-mode (&optional arg)
7229 "Minor mode for Gnus summary buffers."
7230 (interactive "P")
7231 (when (eq major-mode 'gnus-summary-mode)
7232 (make-local-variable 'gnus-dead-summary-mode)
7233 (setq gnus-dead-summary-mode
7234 (if (null arg) (not gnus-dead-summary-mode)
7235 (> (prefix-numeric-value arg) 0)))
7236 (when gnus-dead-summary-mode
01c52d31 7237 (add-minor-mode
a8151ef7 7238 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI
7239
7240(defun gnus-deaden-summary ()
7241 "Make the current summary buffer into a dead summary buffer."
7242 ;; Kill any previous dead summary buffer.
7243 (when (and gnus-dead-summary
7244 (buffer-name gnus-dead-summary))
01c52d31 7245 (with-current-buffer gnus-dead-summary
eec82323
LMI
7246 (when gnus-dead-summary-mode
7247 (kill-buffer (current-buffer)))))
7248 ;; Make this the current dead summary.
7249 (setq gnus-dead-summary (current-buffer))
7250 (gnus-dead-summary-mode 1)
7251 (let ((name (buffer-name)))
7252 (when (string-match "Summary" name)
7253 (rename-buffer
7254 (concat (substring name 0 (match-beginning 0)) "Dead "
7255 (substring name (match-beginning 0)))
16409b0b
GM
7256 t)
7257 (bury-buffer))))
eec82323
LMI
7258
7259(defun gnus-kill-or-deaden-summary (buffer)
7260 "Kill or deaden the summary BUFFER."
6748645f
LMI
7261 (save-excursion
7262 (when (and (buffer-name buffer)
7263 (not gnus-single-article-buffer))
01c52d31 7264 (with-current-buffer buffer
6748645f
LMI
7265 (gnus-kill-buffer gnus-article-buffer)
7266 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7267 (cond
7268 ;; Kill the buffer.
7269 (gnus-kill-summary-on-exit
7270 (when (and gnus-use-trees
7271 (gnus-buffer-exists-p buffer))
c7a91ce1 7272 (with-current-buffer buffer
23f87bed
MB
7273 (gnus-tree-close gnus-newsgroup-name)))
7274 (gnus-kill-buffer buffer))
7275 ;; Deaden the buffer.
7276 ((gnus-buffer-exists-p buffer)
c7a91ce1 7277 (with-current-buffer buffer
23f87bed 7278 (gnus-deaden-summary))))))
eec82323
LMI
7279
7280(defun gnus-summary-wake-up-the-dead (&rest args)
7281 "Wake up the dead summary buffer."
7282 (interactive)
7283 (gnus-dead-summary-mode -1)
7284 (let ((name (buffer-name)))
7285 (when (string-match "Dead " name)
7286 (rename-buffer
7287 (concat (substring name 0 (match-beginning 0))
7288 (substring name (match-end 0)))
7289 t)))
7290 (gnus-message 3 "This dead summary is now alive again"))
7291
7292;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7293(defun gnus-summary-fetch-faq (&optional faq-dir)
7294 "Fetch the FAQ for the current group.
7295If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7296in."
7297 (interactive
7298 (list
7299 (when current-prefix-arg
7300 (completing-read
8f688cb0 7301 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7302 (mapcar 'list
a8151ef7 7303 gnus-group-faq-directory))))))
eec82323
LMI
7304 (let (gnus-faq-buffer)
7305 (when (setq gnus-faq-buffer
7306 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7307 (gnus-configure-windows 'summary-faq))))
7308
7309;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7310(defun gnus-summary-describe-group (&optional force)
7311 "Describe the current newsgroup."
7312 (interactive "P")
7313 (gnus-group-describe-group force gnus-newsgroup-name))
7314
7315(defun gnus-summary-describe-briefly ()
7316 "Describe summary mode commands briefly."
7317 (interactive)
16409b0b 7318 (gnus-message 6 (substitute-command-keys "\\<gnus-summary-mode-map>\\[gnus-summary-next-page]:Select \\[gnus-summary-next-unread-article]:Forward \\[gnus-summary-prev-unread-article]:Backward \\[gnus-summary-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-summary-describe-briefly]:This help")))
eec82323
LMI
7319
7320;; Walking around group mode buffer from summary mode.
7321
7322(defun gnus-summary-next-group (&optional no-article target-group backward)
7323 "Exit current newsgroup and then select next unread newsgroup.
7324If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7325initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7326previous group instead."
7327 (interactive "P")
eec82323
LMI
7328 ;; Stop pre-fetching.
7329 (gnus-async-halt-prefetch)
7330 (let ((current-group gnus-newsgroup-name)
7331 (current-buffer (current-buffer))
7332 entered)
7333 ;; First we semi-exit this group to update Xrefs and all variables.
7334 ;; We can't do a real exit, because the window conf must remain
7335 ;; the same in case the user is prompted for info, and we don't
7336 ;; want the window conf to change before that...
7337 (gnus-summary-exit t)
7338 (while (not entered)
7339 ;; Then we find what group we are supposed to enter.
7340 (set-buffer gnus-group-buffer)
7341 (gnus-group-jump-to-group current-group)
7342 (setq target-group
7343 (or target-group
7344 (if (eq gnus-keep-same-level 'best)
7345 (gnus-summary-best-group gnus-newsgroup-name)
7346 (gnus-summary-search-group backward gnus-keep-same-level))))
7347 (if (not target-group)
7348 ;; There are no further groups, so we return to the group
7349 ;; buffer.
7350 (progn
7351 (gnus-message 5 "Returning to the group buffer")
7352 (setq entered t)
7353 (when (gnus-buffer-live-p current-buffer)
7354 (set-buffer current-buffer)
7355 (gnus-summary-exit))
6748645f 7356 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7357 ;; We try to enter the target group.
7358 (gnus-group-jump-to-group target-group)
7359 (let ((unreads (gnus-group-group-unread)))
7360 (if (and (or (eq t unreads)
7361 (and unreads (not (zerop unreads))))
23f87bed
MB
7362 (gnus-summary-read-group
7363 target-group nil no-article
7364 (and (buffer-name current-buffer) current-buffer)
7365 nil backward))
eec82323
LMI
7366 (setq entered t)
7367 (setq current-group target-group
7368 target-group nil)))))))
7369
7370(defun gnus-summary-prev-group (&optional no-article)
7371 "Exit current newsgroup and then select previous unread newsgroup.
7372If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7373 (interactive "P")
7374 (gnus-summary-next-group no-article nil t))
7375
7376;; Walking around summary lines.
7377
23f87bed
MB
7378(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7379 "Go to the first subject satisfying any non-nil constraint.
7380If UNREAD is non-nil, the article should be unread.
7381If UNDOWNLOADED is non-nil, the article should be undownloaded.
7382If UNSEEN is non-nil, the article should be unseen.
7383Returns the article selected or nil if there are no matching articles."
eec82323 7384 (interactive "P")
23f87bed
MB
7385 (cond
7386 ;; Empty summary.
7387 ((null gnus-newsgroup-data)
7388 (gnus-message 3 "No articles in the group")
7389 nil)
7390 ;; Pick the first article.
7391 ((not (or unread undownloaded unseen))
7392 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7393 (gnus-data-number (car gnus-newsgroup-data)))
7394 ;; Find the first unread article.
7395 (t
7396 (let ((data gnus-newsgroup-data))
7397 (while (and data
7398 (let ((num (gnus-data-number (car data))))
7399 (or (memq num gnus-newsgroup-unfetched)
7400 (not (or (and unread
7401 (memq num gnus-newsgroup-unreads))
7402 (and undownloaded
7403 (memq num gnus-newsgroup-undownloaded))
7404 (and unseen
7405 (memq num gnus-newsgroup-unseen)))))))
7406 (setq data (cdr data)))
7407 (prog1
7408 (if data
7409 (progn
7410 (goto-char (gnus-data-pos (car data)))
7411 (gnus-data-number (car data)))
7412 (gnus-message 3 "No more%s articles"
7413 (let* ((r (when unread " unread"))
7414 (d (when undownloaded " undownloaded"))
7415 (s (when unseen " unseen"))
7416 (l (delq nil (list r d s))))
7417 (cond ((= 3 (length l))
7418 (concat r "," d ", or" s))
7419 ((= 2 (length l))
7420 (concat (car l) ", or" (cadr l)))
7421 ((= 1 (length l))
7422 (car l))
7423 (t
7424 ""))))
7425 nil
7426 )
7427 (gnus-summary-position-point))))))
eec82323
LMI
7428
7429(defun gnus-summary-next-subject (n &optional unread dont-display)
7430 "Go to next N'th summary line.
7431If N is negative, go to the previous N'th subject line.
7432If UNREAD is non-nil, only unread articles are selected.
7433The difference between N and the actual number of steps taken is
7434returned."
7435 (interactive "p")
7436 (let ((backward (< n 0))
7437 (n (abs n)))
7438 (while (and (> n 0)
7439 (if backward
7440 (gnus-summary-find-prev unread)
7441 (gnus-summary-find-next unread)))
16409b0b
GM
7442 (unless (zerop (setq n (1- n)))
7443 (gnus-summary-show-thread)))
eec82323
LMI
7444 (when (/= 0 n)
7445 (gnus-message 7 "No more%s articles"
7446 (if unread " unread" "")))
7447 (unless dont-display
7448 (gnus-summary-recenter)
7449 (gnus-summary-position-point))
7450 n))
7451
7452(defun gnus-summary-next-unread-subject (n)
7453 "Go to next N'th unread summary line."
7454 (interactive "p")
7455 (gnus-summary-next-subject n t))
7456
7457(defun gnus-summary-prev-subject (n &optional unread)
7458 "Go to previous N'th summary line.
7459If optional argument UNREAD is non-nil, only unread article is selected."
7460 (interactive "p")
7461 (gnus-summary-next-subject (- n) unread))
7462
7463(defun gnus-summary-prev-unread-subject (n)
7464 "Go to previous N'th unread summary line."
7465 (interactive "p")
7466 (gnus-summary-next-subject (- n) t))
7467
23f87bed
MB
7468(defun gnus-summary-goto-subjects (articles)
7469 "Insert the subject header for ARTICLES in the current buffer."
7470 (save-excursion
7471 (dolist (article articles)
7472 (gnus-summary-goto-subject article t)))
7473 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7474 (gnus-summary-position-point))
132cf96d 7475
eec82323 7476(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7477 "Go to the subject line of ARTICLE.
eec82323
LMI
7478If FORCE, also allow jumping to articles not currently shown."
7479 (interactive "nArticle number: ")
23f87bed
MB
7480 (unless (numberp article)
7481 (error "Article %s is not a number" article))
eec82323
LMI
7482 (let ((b (point))
7483 (data (gnus-data-find article)))
7484 ;; We read in the article if we have to.
7485 (and (not data)
7486 force
6748645f
LMI
7487 (gnus-summary-insert-subject
7488 article
7489 (if (or (numberp force) (vectorp force)) force)
7490 t)
eec82323
LMI
7491 (setq data (gnus-data-find article)))
7492 (goto-char b)
7493 (if (not data)
7494 (progn
7495 (unless silent
7496 (gnus-message 3 "Can't find article %d" article))
7497 nil)
23f87bed
MB
7498 (let ((pt (gnus-data-pos data)))
7499 (goto-char pt)
7500 (gnus-summary-set-article-display-arrow pt))
6748645f 7501 (gnus-summary-position-point)
eec82323
LMI
7502 article)))
7503
7504;; Walking around summary lines with displaying articles.
7505
7506(defun gnus-summary-expand-window (&optional arg)
7507 "Make the summary buffer take up the entire Emacs frame.
7508Given a prefix, will force an `article' buffer configuration."
7509 (interactive "P")
eec82323
LMI
7510 (if arg
7511 (gnus-configure-windows 'article 'force)
7512 (gnus-configure-windows 'summary 'force)))
7513
7514(defun gnus-summary-display-article (article &optional all-header)
7515 "Display ARTICLE in article buffer."
01c52d31
MB
7516 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7517 (with-current-buffer gnus-article-buffer
7518 (eq major-mode 'gnus-article-mode)))
7519 (gnus-article-setup-buffer))
eec82323 7520 (gnus-set-global-variables)
01c52d31
MB
7521 (with-current-buffer gnus-article-buffer
7522 (setq gnus-article-charset gnus-newsgroup-charset)
7523 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7524 (mm-enable-multibyte))
eec82323
LMI
7525 (if (null article)
7526 nil
7527 (prog1
7528 (if gnus-summary-display-article-function
7529 (funcall gnus-summary-display-article-function article all-header)
7530 (gnus-article-prepare article all-header))
6748645f 7531 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7532 (when (and gnus-current-article
7533 (not (zerop gnus-current-article)))
7534 (gnus-summary-goto-subject gnus-current-article))
7535 (gnus-summary-recenter)
7536 (when (and gnus-use-trees gnus-show-threads)
7537 (gnus-possibly-generate-tree article)
7538 (gnus-highlight-selected-tree article))
7539 ;; Successfully display article.
7540 (gnus-article-set-window-start
7541 (cdr (assq article gnus-newsgroup-bookmarks))))))
7542
7543(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7544 "Select the current article.
7545If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7546non-nil, the article will be re-fetched even if it already present in
7547the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7548be displayed."
7549 ;; Make sure we are in the summary buffer to work around bbdb bug.
7550 (unless (eq major-mode 'gnus-summary-mode)
7551 (set-buffer gnus-summary-buffer))
7552 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7553 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7554 gnus-summary-display-article-function)
eec82323
LMI
7555 (and (not pseudo)
7556 (gnus-summary-article-pseudo-p article)
a8151ef7 7557 (error "This is a pseudo-article"))
c7a91ce1 7558 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7559 (if (or (and gnus-single-article-buffer
7560 (or (null gnus-current-article)
7561 (null gnus-article-current)
7562 (null (get-buffer gnus-article-buffer))
7563 (not (eq article (cdr gnus-article-current)))
7564 (not (equal (car gnus-article-current)
7565 gnus-newsgroup-name))))
7566 (and (not gnus-single-article-buffer)
7567 (or (null gnus-current-article)
7568 (not (eq gnus-current-article article))))
7569 force)
7570 ;; The requested article is different from the current article.
7571 (progn
16409b0b
GM
7572 (gnus-summary-display-article article all-headers)
7573 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7574 (with-current-buffer gnus-article-buffer
16409b0b 7575 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7576 (mm-disable-multibyte))))
16409b0b
GM
7577 (gnus-article-set-window-start
7578 (cdr (assq article gnus-newsgroup-bookmarks)))
7579 article)
16409b0b 7580 'old))))
eec82323 7581
23f87bed
MB
7582(defun gnus-summary-force-verify-and-decrypt ()
7583 "Display buttons for signed/encrypted parts and verify/decrypt them."
7584 (interactive)
7585 (let ((mm-verify-option 'known)
7586 (mm-decrypt-option 'known)
7587 (gnus-article-emulate-mime t)
7588 (gnus-buttonized-mime-types (append (list "multipart/signed"
7589 "multipart/encrypted")
7590 gnus-buttonized-mime-types)))
7591 (gnus-summary-select-article nil 'force)))
7592
eec82323
LMI
7593(defun gnus-summary-set-current-mark (&optional current-mark)
7594 "Obsolete function."
7595 nil)
7596
7597(defun gnus-summary-next-article (&optional unread subject backward push)
7598 "Select the next article.
7599If UNREAD, only unread articles are selected.
7600If SUBJECT, only articles with SUBJECT are selected.
7601If BACKWARD, the previous article is selected instead of the next."
7602 (interactive "P")
11e95b02
MB
7603 ;; Make sure we are in the summary buffer.
7604 (unless (eq major-mode 'gnus-summary-mode)
7605 (set-buffer gnus-summary-buffer))
eec82323
LMI
7606 (cond
7607 ;; Is there such an article?
7608 ((and (gnus-summary-search-forward unread subject backward)
7609 (or (gnus-summary-display-article (gnus-summary-article-number))
7610 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7611 (gnus-summary-position-point))
7612 ;; If not, we try the first unread, if that is wanted.
7613 ((and subject
7614 gnus-auto-select-same
7615 (gnus-summary-first-unread-article))
7616 (gnus-summary-position-point)
7617 (gnus-message 6 "Wrapped"))
7618 ;; Try to get next/previous article not displayed in this group.
7619 ((and gnus-auto-extend-newsgroup
7620 (not unread) (not subject))
7621 (gnus-summary-goto-article
7622 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7623 nil (count-lines (point-min) (point))))
eec82323
LMI
7624 ;; Go to next/previous group.
7625 (t
7626 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7627 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7628 (let ((cmd (if (featurep 'xemacs)
7629 last-command-char
7630 last-command-event))
eec82323 7631 (point
01c52d31 7632 (with-current-buffer gnus-group-buffer
eec82323
LMI
7633 (point)))
7634 (group
7635 (if (eq gnus-keep-same-level 'best)
7636 (gnus-summary-best-group gnus-newsgroup-name)
7637 (gnus-summary-search-group backward gnus-keep-same-level))))
7638 ;; For some reason, the group window gets selected. We change
7639 ;; it back.
7640 (select-window (get-buffer-window (current-buffer)))
7641 ;; Select next unread newsgroup automagically.
7642 (cond
7643 ((or (not gnus-auto-select-next)
7644 (not cmd))
7645 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7646 ((or (eq gnus-auto-select-next 'quietly)
7647 (and (eq gnus-auto-select-next 'slightly-quietly)
7648 push)
7649 (and (eq gnus-auto-select-next 'almost-quietly)
7650 (gnus-summary-last-article-p)))
7651 ;; Select quietly.
7652 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7653 (gnus-summary-exit)
7654 (gnus-message 7 "No more%s articles (%s)..."
7655 (if unread " unread" "")
7656 (if group (concat "selecting " group)
7657 "exiting"))
7658 (gnus-summary-next-group nil group backward)))
7659 (t
7660 (when (gnus-key-press-event-p last-input-event)
7661 (gnus-summary-walk-group-buffer
7662 gnus-newsgroup-name cmd unread backward point))))))))
7663
7664(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7665 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7666 (?\C-p (gnus-group-prev-unread-group 1))))
7667 (cursor-in-echo-area t)
23f87bed 7668 keve key group ended prompt)
c7a91ce1 7669 (with-current-buffer gnus-group-buffer
eec82323
LMI
7670 (goto-char start)
7671 (setq group
7672 (if (eq gnus-keep-same-level 'best)
7673 (gnus-summary-best-group gnus-newsgroup-name)
7674 (gnus-summary-search-group backward gnus-keep-same-level))))
7675 (while (not ended)
23f87bed
MB
7676 (setq prompt
7677 (format
7678 "No more%s articles%s " (if unread " unread" "")
7679 (if (and group
7680 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7681 (format " (Type %s for %s [%s])"
91472578
MB
7682 (single-key-description cmd)
7683 (gnus-group-decoded-name group)
01c52d31 7684 (gnus-group-unread group))
23f87bed
MB
7685 (format " (Type %s to exit %s)"
7686 (single-key-description cmd)
91472578 7687 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7688 ;; Confirm auto selection.
23f87bed
MB
7689 (setq key (car (setq keve (gnus-read-event-char prompt)))
7690 ended t)
eec82323
LMI
7691 (cond
7692 ((assq key keystrokes)
7693 (let ((obuf (current-buffer)))
7694 (switch-to-buffer gnus-group-buffer)
7695 (when group
7696 (gnus-group-jump-to-group group))
7697 (eval (cadr (assq key keystrokes)))
7698 (setq group (gnus-group-group-name))
7699 (switch-to-buffer obuf))
7700 (setq ended nil))
7701 ((equal key cmd)
7702 (if (or (not group)
7703 (gnus-ephemeral-group-p gnus-newsgroup-name))
7704 (gnus-summary-exit)
7705 (gnus-summary-next-group nil group backward)))
7706 (t
7707 (push (cdr keve) unread-command-events))))))
7708
7709(defun gnus-summary-next-unread-article ()
7710 "Select unread article after current one."
7711 (interactive)
7712 (gnus-summary-next-article
7713 (or (not (eq gnus-summary-goto-unread 'never))
7714 (gnus-summary-last-article-p (gnus-summary-article-number)))
7715 (and gnus-auto-select-same
7716 (gnus-summary-article-subject))))
7717
7718(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7719 "Select the article before the current one.
eec82323
LMI
7720If UNREAD is non-nil, only unread articles are selected."
7721 (interactive "P")
7722 (gnus-summary-next-article unread subject t))
7723
7724(defun gnus-summary-prev-unread-article ()
7725 "Select unread article before current one."
7726 (interactive)
7727 (gnus-summary-prev-article
7728 (or (not (eq gnus-summary-goto-unread 'never))
7729 (gnus-summary-first-article-p (gnus-summary-article-number)))
7730 (and gnus-auto-select-same
7731 (gnus-summary-article-subject))))
7732
23f87bed 7733(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7734 "Show next page of the selected article.
7735If at the end of the current article, select the next article.
7736LINES says how many lines should be scrolled up.
7737
7738If CIRCULAR is non-nil, go to the start of the article instead of
7739selecting the next article when reaching the end of the current
23f87bed
MB
7740article.
7741
7742If STOP is non-nil, just stop when reaching the end of the message.
7743
7744Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7745 (interactive "P")
7746 (setq gnus-summary-buffer (current-buffer))
7747 (gnus-set-global-variables)
7748 (let ((article (gnus-summary-article-number))
7749 (article-window (get-buffer-window gnus-article-buffer t))
7750 endp)
6748645f
LMI
7751 ;; If the buffer is empty, we have no article.
7752 (unless article
7753 (error "No article to select"))
eec82323
LMI
7754 (gnus-configure-windows 'article)
7755 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7756 (if (and (eq gnus-summary-goto-unread 'never)
7757 (not (gnus-summary-last-article-p article)))
7758 (gnus-summary-next-article)
7759 (gnus-summary-next-unread-article))
7760 (if (or (null gnus-current-article)
7761 (null gnus-article-current)
7762 (/= article (cdr gnus-article-current))
7763 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7764 ;; Selected subject is different from current article's.
7765 (gnus-summary-display-article article)
7766 (when article-window
7767 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7768 (setq endp (or (gnus-article-next-page lines)
7769 (gnus-article-only-boring-p))))
eec82323 7770 (when endp
23f87bed
MB
7771 (cond (stop
7772 (gnus-message 3 "End of message"))
7773 (circular
eec82323
LMI
7774 (gnus-summary-beginning-of-article))
7775 (lines
7776 (gnus-message 3 "End of message"))
7777 ((null lines)
7778 (if (and (eq gnus-summary-goto-unread 'never)
7779 (not (gnus-summary-last-article-p article)))
7780 (gnus-summary-next-article)
7781 (gnus-summary-next-unread-article))))))))
7782 (gnus-summary-recenter)
7783 (gnus-summary-position-point)))
7784
7785(defun gnus-summary-prev-page (&optional lines move)
7786 "Show previous page of selected article.
7787Argument LINES specifies lines to be scrolled down.
7788If MOVE, move to the previous unread article if point is at
7789the beginning of the buffer."
7790 (interactive "P")
eec82323
LMI
7791 (let ((article (gnus-summary-article-number))
7792 (article-window (get-buffer-window gnus-article-buffer t))
7793 endp)
7794 (gnus-configure-windows 'article)
7795 (if (or (null gnus-current-article)
7796 (null gnus-article-current)
7797 (/= article (cdr gnus-article-current))
7798 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7799 ;; Selected subject is different from current article's.
7800 (gnus-summary-display-article article)
7801 (gnus-summary-recenter)
7802 (when article-window
7803 (gnus-eval-in-buffer-window gnus-article-buffer
7804 (setq endp (gnus-article-prev-page lines)))
7805 (when (and move endp)
7806 (cond (lines
7807 (gnus-message 3 "Beginning of message"))
7808 ((null lines)
7809 (if (and (eq gnus-summary-goto-unread 'never)
7810 (not (gnus-summary-first-article-p article)))
7811 (gnus-summary-prev-article)
7812 (gnus-summary-prev-unread-article))))))))
7813 (gnus-summary-position-point))
7814
7815(defun gnus-summary-prev-page-or-article (&optional lines)
7816 "Show previous page of selected article.
7817Argument LINES specifies lines to be scrolled down.
7818If at the beginning of the article, go to the next article."
7819 (interactive "P")
7820 (gnus-summary-prev-page lines t))
7821
7822(defun gnus-summary-scroll-up (lines)
7823 "Scroll up (or down) one line current article.
7824Argument LINES specifies lines to be scrolled up (or down if negative)."
7825 (interactive "p")
eec82323
LMI
7826 (gnus-configure-windows 'article)
7827 (gnus-summary-show-thread)
7828 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7829 (gnus-eval-in-buffer-window gnus-article-buffer
7830 (cond ((> lines 0)
7831 (when (gnus-article-next-page lines)
7832 (gnus-message 3 "End of message")))
7833 ((< lines 0)
7834 (gnus-article-prev-page (- lines))))))
7835 (gnus-summary-recenter)
7836 (gnus-summary-position-point))
7837
6748645f
LMI
7838(defun gnus-summary-scroll-down (lines)
7839 "Scroll down (or up) one line current article.
7840Argument LINES specifies lines to be scrolled down (or up if negative)."
7841 (interactive "p")
7842 (gnus-summary-scroll-up (- lines)))
7843
eec82323
LMI
7844(defun gnus-summary-next-same-subject ()
7845 "Select next article which has the same subject as current one."
7846 (interactive)
eec82323
LMI
7847 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7848
7849(defun gnus-summary-prev-same-subject ()
7850 "Select previous article which has the same subject as current one."
7851 (interactive)
eec82323
LMI
7852 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7853
7854(defun gnus-summary-next-unread-same-subject ()
7855 "Select next unread article which has the same subject as current one."
7856 (interactive)
eec82323
LMI
7857 (gnus-summary-next-article t (gnus-summary-article-subject)))
7858
7859(defun gnus-summary-prev-unread-same-subject ()
7860 "Select previous unread article which has the same subject as current one."
7861 (interactive)
eec82323
LMI
7862 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7863
7864(defun gnus-summary-first-unread-article ()
7865 "Select the first unread article.
7866Return nil if there are no unread articles."
7867 (interactive)
eec82323
LMI
7868 (prog1
7869 (when (gnus-summary-first-subject t)
7870 (gnus-summary-show-thread)
7871 (gnus-summary-first-subject t)
7872 (gnus-summary-display-article (gnus-summary-article-number)))
7873 (gnus-summary-position-point)))
7874
16409b0b
GM
7875(defun gnus-summary-first-unread-subject ()
7876 "Place the point on the subject line of the first unread article.
7877Return nil if there are no unread articles."
7878 (interactive)
7879 (prog1
7880 (when (gnus-summary-first-subject t)
7881 (gnus-summary-show-thread)
7882 (gnus-summary-first-subject t))
7883 (gnus-summary-position-point)))
7884
23f87bed
MB
7885(defun gnus-summary-first-unseen-subject ()
7886 "Place the point on the subject line of the first unseen article.
7887Return nil if there are no unseen articles."
7888 (interactive)
7889 (prog1
7890 (when (gnus-summary-first-subject nil nil t)
7891 (gnus-summary-show-thread)
7892 (gnus-summary-first-subject nil nil t))
7893 (gnus-summary-position-point)))
7894
7895(defun gnus-summary-first-unseen-or-unread-subject ()
7896 "Place the point on the subject line of the first unseen article or,
7897if all article have been seen, on the subject line of the first unread
7898article."
7899 (interactive)
7900 (prog1
7901 (unless (when (gnus-summary-first-subject nil nil t)
7902 (gnus-summary-show-thread)
7903 (gnus-summary-first-subject nil nil t))
7904 (when (gnus-summary-first-subject t)
7905 (gnus-summary-show-thread)
7906 (gnus-summary-first-subject t)))
7907 (gnus-summary-position-point)))
7908
eec82323
LMI
7909(defun gnus-summary-first-article ()
7910 "Select the first article.
7911Return nil if there are no articles."
7912 (interactive)
eec82323
LMI
7913 (prog1
7914 (when (gnus-summary-first-subject)
16409b0b
GM
7915 (gnus-summary-show-thread)
7916 (gnus-summary-first-subject)
7917 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7918 (gnus-summary-position-point)))
7919
23f87bed
MB
7920(defun gnus-summary-best-unread-article (&optional arg)
7921 "Select the unread article with the highest score.
7922If given a prefix argument, select the next unread article that has a
7923score higher than the default score."
7924 (interactive "P")
7925 (let ((article (if arg
7926 (gnus-summary-better-unread-subject)
7927 (gnus-summary-best-unread-subject))))
7928 (if article
7929 (gnus-summary-goto-article article)
7930 (error "No unread articles"))))
7931
7932(defun gnus-summary-best-unread-subject ()
7933 "Select the unread subject with the highest score."
eec82323 7934 (interactive)
eec82323
LMI
7935 (let ((best -1000000)
7936 (data gnus-newsgroup-data)
7937 article score)
7938 (while data
7939 (and (gnus-data-unread-p (car data))
7940 (> (setq score
7941 (gnus-summary-article-score (gnus-data-number (car data))))
7942 best)
7943 (setq best score
7944 article (gnus-data-number (car data))))
7945 (setq data (cdr data)))
23f87bed
MB
7946 (when article
7947 (gnus-summary-goto-subject article))
7948 (gnus-summary-position-point)
7949 article))
7950
7951(defun gnus-summary-better-unread-subject ()
7952 "Select the first unread subject that has a score over the default score."
7953 (interactive)
7954 (let ((data gnus-newsgroup-data)
7955 article score)
7956 (while (and (setq article (gnus-data-number (car data)))
7957 (or (gnus-data-read-p (car data))
7958 (not (> (gnus-summary-article-score article)
7959 gnus-summary-default-score))))
7960 (setq data (cdr data)))
7961 (when article
7962 (gnus-summary-goto-subject article))
7963 (gnus-summary-position-point)
7964 article))
eec82323
LMI
7965
7966(defun gnus-summary-last-subject ()
7967 "Go to the last displayed subject line in the group."
7968 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7969 (when article
7970 (gnus-summary-goto-subject article))))
7971
7972(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7973 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7974If ALL-HEADERS is non-nil, no header lines are hidden.
7975If FORCE, go to the article even if it isn't displayed. If FORCE
7976is a number, it is the line the article is to be displayed on."
eec82323
LMI
7977 (interactive
7978 (list
6748645f
LMI
7979 (completing-read
7980 "Article number or Message-ID: "
7981 (mapcar (lambda (number) (list (int-to-string number)))
7982 gnus-newsgroup-limit))
eec82323
LMI
7983 current-prefix-arg
7984 t))
7985 (prog1
6748645f 7986 (if (and (stringp article)
23f87bed 7987 (string-match "@\\|%40" article))
6748645f
LMI
7988 (gnus-summary-refer-article article)
7989 (when (stringp article)
7990 (setq article (string-to-number article)))
7991 (if (gnus-summary-goto-subject article force)
7992 (gnus-summary-display-article article all-headers)
7993 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
7994 (gnus-summary-position-point)))
7995
7996(defun gnus-summary-goto-last-article ()
7997 "Go to the previously read article."
7998 (interactive)
7999 (prog1
8000 (when gnus-last-article
6748645f 8001 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8002 (gnus-summary-position-point)))
8003
8004(defun gnus-summary-pop-article (number)
8005 "Pop one article off the history and go to the previous.
8006NUMBER articles will be popped off."
8007 (interactive "p")
8008 (let (to)
8009 (setq gnus-newsgroup-history
8010 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8011 (if to
6748645f 8012 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8013 (error "Article history empty")))
8014 (gnus-summary-position-point))
8015
8016;; Summary commands and functions for limiting the summary buffer.
8017
8018(defun gnus-summary-limit-to-articles (n)
8019 "Limit the summary buffer to the next N articles.
8020If not given a prefix, use the process marked articles instead."
8021 (interactive "P")
eec82323
LMI
8022 (prog1
8023 (let ((articles (gnus-summary-work-articles n)))
8024 (setq gnus-newsgroup-processable nil)
8025 (gnus-summary-limit articles))
8026 (gnus-summary-position-point)))
8027
8028(defun gnus-summary-pop-limit (&optional total)
8029 "Restore the previous limit.
8030If given a prefix, remove all limits."
8031 (interactive "P")
eec82323
LMI
8032 (when total
8033 (setq gnus-newsgroup-limits
8034 (list (mapcar (lambda (h) (mail-header-number h))
8035 gnus-newsgroup-headers))))
8036 (unless gnus-newsgroup-limits
8037 (error "No limit to pop"))
8038 (prog1
8039 (gnus-summary-limit nil 'pop)
8040 (gnus-summary-position-point)))
8041
47b63dfa
SZ
8042(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8043 "Limit the summary buffer to articles that have subjects that match a regexp.
8044If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8045 (interactive
47b63dfa
SZ
8046 (list (read-string (if current-prefix-arg
8047 "Exclude subject (regexp): "
a1506d29 8048 "Limit to subject (regexp): "))
47b63dfa 8049 nil current-prefix-arg))
eec82323
LMI
8050 (unless header
8051 (setq header "subject"))
8052 (when (not (equal "" subject))
8053 (prog1
8054 (let ((articles (gnus-summary-find-matching
a1506d29 8055 (or header "subject") subject 'all nil nil
47b63dfa 8056 not-matching)))
eec82323
LMI
8057 (unless articles
8058 (error "Found no matches for \"%s\"" subject))
8059 (gnus-summary-limit articles))
8060 (gnus-summary-position-point))))
8061
ef6e0ec7 8062(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8063 "Limit the summary buffer to articles that have authors that match a regexp.
8064If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8065 (interactive
47b63dfa
SZ
8066 (list (read-string (if current-prefix-arg
8067 "Exclude author (regexp): "
a1506d29 8068 "Limit to author (regexp): "))
ef6e0ec7
SZ
8069 current-prefix-arg))
8070 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8071
01c52d31
MB
8072(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8073 "Limit the summary buffer to articles with the given RECIPIENT.
8074
8075If NOT-MATCHING, exclude RECIPIENT.
8076
8077To and Cc headers are checked. You need to include them in
8078`nnmail-extra-headers'."
8079 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8080 (interactive
8081 (list (read-string (format "%s recipient (regexp): "
8082 (if current-prefix-arg "Exclude" "Limit to")))
8083 current-prefix-arg))
8084 (when (not (equal "" recipient))
8085 (prog1 (let* ((to
8086 (if (memq 'To nnmail-extra-headers)
8087 (gnus-summary-find-matching
8088 (cons 'extra 'To) recipient 'all nil nil
8089 not-matching)
8090 (gnus-message
8091 1 "`To' isn't present in `nnmail-extra-headers'")
8092 (sit-for 1)
8093 nil))
8094 (cc
8095 (if (memq 'Cc nnmail-extra-headers)
8096 (gnus-summary-find-matching
8097 (cons 'extra 'Cc) recipient 'all nil nil
8098 not-matching)
8099 (gnus-message
8100 1 "`Cc' isn't present in `nnmail-extra-headers'")
8101 (sit-for 1)
8102 nil))
8103 (articles
8104 (if not-matching
8105 ;; We need the numbers that are in both lists:
8106 (mapcar (lambda (a)
8107 (and (memq a to) a))
8108 cc)
8109 (nconc to cc))))
8110 (unless articles
8111 (error "Found no matches for \"%s\"" recipient))
8112 (gnus-summary-limit articles))
8113 (gnus-summary-position-point))))
8114
8115(defun gnus-summary-limit-to-address (address &optional not-matching)
8116 "Limit the summary buffer to articles with the given ADDRESS.
8117
8118If NOT-MATCHING, exclude ADDRESS.
8119
8120To, Cc and From headers are checked. You need to include `To' and `Cc'
8121in `nnmail-extra-headers'."
8122 (interactive
8123 (list (read-string (format "%s address (regexp): "
8124 (if current-prefix-arg "Exclude" "Limit to")))
8125 current-prefix-arg))
8126 (when (not (equal "" address))
8127 (prog1 (let* ((to
8128 (if (memq 'To nnmail-extra-headers)
8129 (gnus-summary-find-matching
8130 (cons 'extra 'To) address 'all nil nil
8131 not-matching)
8132 (gnus-message
8133 1 "`To' isn't present in `nnmail-extra-headers'")
8134 (sit-for 1)
8135 t))
8136 (cc
8137 (if (memq 'Cc nnmail-extra-headers)
8138 (gnus-summary-find-matching
8139 (cons 'extra 'Cc) address 'all nil nil
8140 not-matching)
8141 (gnus-message
8142 1 "`Cc' isn't present in `nnmail-extra-headers'")
8143 (sit-for 1)
8144 t))
8145 (from
8146 (gnus-summary-find-matching "from" address
8147 'all nil nil not-matching))
8148 (articles
8149 (if not-matching
8150 ;; We need the numbers that are in all lists:
8151 (if (eq cc t)
8152 (if (eq to t)
8153 from
8154 (mapcar (lambda (a) (car (memq a from))) to))
8155 (if (eq to t)
8156 (mapcar (lambda (a) (car (memq a from))) cc)
8157 (mapcar (lambda (a) (car (memq a from)))
8158 (mapcar (lambda (a) (car (memq a to)))
8159 cc))))
8160 (nconc (if (eq to t) nil to)
8161 (if (eq cc t) nil cc)
8162 from))))
8163 (unless articles
8164 (error "Found no matches for \"%s\"" address))
8165 (gnus-summary-limit articles))
8166 (gnus-summary-position-point))))
8167
8168(defun gnus-summary-limit-strange-charsets-predicate (header)
8169 (let ((string (concat (mail-header-subject header)
8170 (mail-header-from header)))
8171 charset found)
8172 (dotimes (i (1- (length string)))
8173 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8174 (when (string-match "unicode\\|big\\|japanese" charset)
8175 (setq found t)))
8176 found))
8177
8178(defun gnus-summary-limit-to-predicate (predicate)
8179 "Limit to articles where PREDICATE returns non-nil.
8180PREDICATE will be called with the header structures of the
8181articles."
8182 (let ((articles nil)
8183 (case-fold-search t))
8184 (dolist (header gnus-newsgroup-headers)
8185 (when (funcall predicate header)
8186 (push (mail-header-number header) articles)))
8187 (gnus-summary-limit (nreverse articles))))
8188
eec82323
LMI
8189(defun gnus-summary-limit-to-age (age &optional younger-p)
8190 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8191If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8192articles that are younger than AGE days."
16409b0b
GM
8193 (interactive
8194 (let ((younger current-prefix-arg)
8195 (days-got nil)
8196 days)
8197 (while (not days-got)
8198 (setq days (if younger
23f87bed
MB
8199 (read-string "Limit to articles younger than (in days, older when negative): ")
8200 (read-string
8201 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8202 (when (> (length days) 0)
8203 (setq days (read days)))
8204 (if (numberp days)
23f87bed
MB
8205 (progn
8206 (setq days-got t)
01c52d31
MB
8207 (when (< days 0)
8208 (setq younger (not younger))
8209 (setq days (* days -1))))
16409b0b
GM
8210 (message "Please enter a number.")
8211 (sleep-for 1)))
8212 (list days younger)))
eec82323
LMI
8213 (prog1
8214 (let ((data gnus-newsgroup-data)
16409b0b 8215 (cutoff (days-to-time age))
eec82323
LMI
8216 articles d date is-younger)
8217 (while (setq d (pop data))
8218 (when (and (vectorp (gnus-data-header d))
8219 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM
8220 (setq is-younger (time-less-p
8221 (time-since (condition-case ()
8222 (date-to-time date)
8223 (error '(0 0))))
eec82323 8224 cutoff))
6748645f
LMI
8225 (when (if younger-p
8226 is-younger
8227 (not is-younger))
eec82323
LMI
8228 (push (gnus-data-number d) articles))))
8229 (gnus-summary-limit (nreverse articles)))
8230 (gnus-summary-position-point)))
8231
47b63dfa 8232(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8233 "Limit the summary buffer to articles that match an 'extra' header."
8234 (interactive
8235 (let ((header
8236 (intern
23f87bed 8237 (gnus-completing-read-with-default
16409b0b 8238 (symbol-name (car gnus-extra-headers))
47b63dfa 8239 (if current-prefix-arg
81df110a
RF
8240 "Exclude extra header"
8241 "Limit extra header")
16409b0b
GM
8242 (mapcar (lambda (x)
8243 (cons (symbol-name x) x))
8244 gnus-extra-headers)
8245 nil
8246 t))))
8247 (list header
a1506d29 8248 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8249 (if current-prefix-arg "Exclude" "Limit to")
8250 header))
8251 current-prefix-arg)))
16409b0b
GM
8252 (when (not (equal "" regexp))
8253 (prog1
8254 (let ((articles (gnus-summary-find-matching
a1506d29 8255 (cons 'extra header) regexp 'all nil nil
47b63dfa 8256 not-matching)))
16409b0b
GM
8257 (unless articles
8258 (error "Found no matches for \"%s\"" regexp))
8259 (gnus-summary-limit articles))
8260 (gnus-summary-position-point))))
8261
23f87bed
MB
8262(defun gnus-summary-limit-to-display-predicate ()
8263 "Limit the summary buffer to the predicated in the `display' group parameter."
8264 (interactive)
8265 (unless gnus-newsgroup-display
8266 (error "There is no `display' group parameter"))
8267 (let (articles)
8268 (dolist (number gnus-newsgroup-articles)
8269 (when (funcall gnus-newsgroup-display)
8270 (push number articles)))
8271 (gnus-summary-limit articles))
8272 (gnus-summary-position-point))
8273
eec82323
LMI
8274(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8275(make-obsolete
8276 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8277
8278(defun gnus-summary-limit-to-unread (&optional all)
8279 "Limit the summary buffer to articles that are not marked as read.
8280If ALL is non-nil, limit strictly to unread articles."
8281 (interactive "P")
8282 (if all
8283 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8284 (gnus-summary-limit-to-marks
8285 ;; Concat all the marks that say that an article is read and have
8286 ;; those removed.
8287 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8288 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8289 gnus-low-score-mark gnus-expirable-mark
8290 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
8291 gnus-duplicate-mark gnus-souped-mark)
8292 'reverse)))
8293
01c52d31
MB
8294(defun gnus-summary-limit-to-headers (match &optional reverse)
8295 "Limit the summary buffer to articles that have headers that match MATCH.
8296If REVERSE (the prefix), limit to articles that don't match."
8297 (interactive "sMatch headers (regexp): \nP")
8298 (gnus-summary-limit-to-bodies match reverse t))
8299
8300(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8301 "Limit the summary buffer to articles that have bodies that match MATCH.
8302If REVERSE (the prefix), limit to articles that don't match."
8303 (interactive "sMatch body (regexp): \nP")
8304 (let ((articles nil)
8305 (gnus-select-article-hook nil) ;Disable hook.
8306 (gnus-article-prepare-hook nil)
8307 (gnus-use-article-prefetch nil)
8308 (gnus-keep-backlog nil)
8309 (gnus-break-pages nil)
8310 (gnus-summary-display-arrow nil)
8311 (gnus-updated-mode-lines nil)
8312 (gnus-auto-center-summary nil)
8313 (gnus-display-mime-function nil))
8314 (dolist (data gnus-newsgroup-data)
8315 (let (gnus-mark-article-hook)
8316 (gnus-summary-select-article t t nil (gnus-data-number data)))
8317 (save-excursion
8318 (set-buffer gnus-article-buffer)
8319 (article-goto-body)
8320 (let* ((case-fold-search t)
8321 (found (if headersp
8322 (re-search-backward match nil t)
8323 (re-search-forward match nil t))))
8324 (when (or (and found
8325 (not reverse))
8326 (and (not found)
8327 reverse))
8328 (push (gnus-data-number data) articles)))))
8329 (if (not articles)
8330 (message "No messages matched")
8331 (gnus-summary-limit articles)))
8332 (gnus-summary-position-point))
8333
8334(defun gnus-summary-limit-to-singletons (&optional threadsp)
8335 "Limit the summary buffer to articles that aren't part on any thread.
8336If THREADSP (the prefix), limit to articles that are in threads."
8337 (interactive "P")
8338 (let ((articles nil)
8339 thread-articles
8340 threads)
8341 (dolist (thread gnus-newsgroup-threads)
8342 (if (stringp (car thread))
8343 (dolist (thread (cdr thread))
8344 (push thread threads))
8345 (push thread threads)))
8346 (dolist (thread threads)
8347 (setq thread-articles (gnus-articles-in-thread thread))
8348 (when (or (and threadsp
8349 (> (length thread-articles) 1))
8350 (and (not threadsp)
8351 (= (length thread-articles) 1)))
8352 (setq articles (nconc thread-articles articles))))
8353 (if (not articles)
8354 (message "No messages matched")
8355 (gnus-summary-limit articles))
8356 (gnus-summary-position-point)))
8357
8358(defun gnus-summary-limit-to-replied (&optional unreplied)
8359 "Limit the summary buffer to replied articles.
8360If UNREPLIED (the prefix), limit to unreplied articles."
8361 (interactive "P")
8362 (if unreplied
8363 (gnus-summary-limit
8364 (gnus-set-difference gnus-newsgroup-articles
8365 gnus-newsgroup-replied))
8366 (gnus-summary-limit gnus-newsgroup-replied))
8367 (gnus-summary-position-point))
8368
eec82323
LMI
8369(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8370(make-obsolete 'gnus-summary-delete-marked-with
81ceefe2 8371 'gnus-summary-limit-exclude-marks)
eec82323
LMI
8372
8373(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8374 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8375If REVERSE, limit the summary buffer to articles that are marked
8376with MARKS. MARKS can either be a string of marks or a list of marks.
8377Returns how many articles were removed."
8378 (interactive "sMarks: ")
8379 (gnus-summary-limit-to-marks marks t))
8380
8381(defun gnus-summary-limit-to-marks (marks &optional reverse)
8382 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8383If REVERSE (the prefix), limit the summary buffer to articles that are
8384not marked with MARKS. MARKS can either be a string of marks or a
8385list of marks.
8386Returns how many articles were removed."
6748645f 8387 (interactive "sMarks: \nP")
eec82323
LMI
8388 (prog1
8389 (let ((data gnus-newsgroup-data)
8390 (marks (if (listp marks) marks
8391 (append marks nil))) ; Transform to list.
8392 articles)
8393 (while data
8394 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8395 (memq (gnus-data-mark (car data)) marks))
8396 (push (gnus-data-number (car data)) articles))
8397 (setq data (cdr data)))
8398 (gnus-summary-limit articles))
8399 (gnus-summary-position-point)))
8400
23f87bed 8401(defun gnus-summary-limit-to-score (score)
eec82323 8402 "Limit to articles with score at or above SCORE."
23f87bed 8403 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8404 (let ((data gnus-newsgroup-data)
8405 articles)
8406 (while data
8407 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8408 score)
8409 (push (gnus-data-number (car data)) articles))
8410 (setq data (cdr data)))
8411 (prog1
8412 (gnus-summary-limit articles)
8413 (gnus-summary-position-point))))
8414
23f87bed
MB
8415(defun gnus-summary-limit-to-unseen ()
8416 "Limit to unseen articles."
8417 (interactive)
8418 (prog1
8419 (gnus-summary-limit gnus-newsgroup-unseen)
8420 (gnus-summary-position-point)))
8421
6748645f 8422(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8423 "Display all the hidden articles that is in the thread with ID in it.
8424When called interactively, ID is the Message-ID of the current
8425article."
6748645f
LMI
8426 (interactive (list (mail-header-id (gnus-summary-article-header))))
8427 (let ((articles (gnus-articles-in-thread
8428 (gnus-id-to-thread (gnus-root-id id)))))
8429 (prog1
8430 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8431 (gnus-summary-limit-include-matching-articles
8432 "subject"
8433 (regexp-quote (gnus-simplify-subject-re
8434 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8435 (gnus-summary-position-point))))
8436
23f87bed
MB
8437(defun gnus-summary-limit-include-matching-articles (header regexp)
8438 "Display all the hidden articles that have HEADERs that match REGEXP."
8439 (interactive (list (read-string "Match on header: ")
8440 (read-string "Regexp: ")))
8441 (let ((articles (gnus-find-matching-articles header regexp)))
8442 (prog1
8443 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8444 (gnus-summary-position-point))))
8445
8446(defun gnus-summary-insert-dormant-articles ()
8447 "Insert all the dormant articles for this group into the current buffer."
8448 (interactive)
8449 (let ((gnus-verbose (max 6 gnus-verbose)))
8450 (if (not gnus-newsgroup-dormant)
db629244 8451 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8452 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8453
01c52d31
MB
8454(defun gnus-summary-insert-ticked-articles ()
8455 "Insert ticked articles for this group into the current buffer."
8456 (interactive)
8457 (let ((gnus-verbose (max 6 gnus-verbose)))
8458 (if (not gnus-newsgroup-marked)
8459 (gnus-message 3 "No ticked articles for this group")
8460 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8461
eec82323 8462(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8463 "Display all the hidden articles that are marked as dormant.
8464Note that this command only works on a subset of the articles currently
8465fetched for this group."
eec82323 8466 (interactive)
eec82323
LMI
8467 (unless gnus-newsgroup-dormant
8468 (error "There are no dormant articles in this group"))
8469 (prog1
8470 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8471 (gnus-summary-position-point)))
8472
8473(defun gnus-summary-limit-exclude-dormant ()
8474 "Hide all dormant articles."
8475 (interactive)
eec82323
LMI
8476 (prog1
8477 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8478 (gnus-summary-position-point)))
8479
8480(defun gnus-summary-limit-exclude-childless-dormant ()
8481 "Hide all dormant articles that have no children."
8482 (interactive)
eec82323
LMI
8483 (let ((data (gnus-data-list t))
8484 articles d children)
8485 ;; Find all articles that are either not dormant or have
8486 ;; children.
8487 (while (setq d (pop data))
8488 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8489 (and (setq children
8490 (gnus-article-children (gnus-data-number d)))
8491 (let (found)
8492 (while children
8493 (when (memq (car children) articles)
8494 (setq children nil
8495 found t))
8496 (pop children))
8497 found)))
8498 (push (gnus-data-number d) articles)))
8499 ;; Do the limiting.
8500 (prog1
8501 (gnus-summary-limit articles)
8502 (gnus-summary-position-point))))
8503
8504(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8505 "Mark all unread excluded articles as read.
8506If ALL, mark even excluded ticked and dormants as read."
8507 (interactive "P")
23f87bed
MB
8508 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8509 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8510 (sort
8511 (mapcar (lambda (h) (mail-header-number h))
8512 gnus-newsgroup-headers)
8513 '<)
23f87bed 8514 gnus-newsgroup-limit))
eec82323 8515 article)
6748645f 8516 (setq gnus-newsgroup-unreads
23f87bed
MB
8517 (gnus-sorted-intersection gnus-newsgroup-unreads
8518 gnus-newsgroup-limit))
eec82323
LMI
8519 (if all
8520 (setq gnus-newsgroup-dormant nil
8521 gnus-newsgroup-marked nil
8522 gnus-newsgroup-reads
8523 (nconc
8524 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8525 gnus-newsgroup-reads))
8526 (while (setq article (pop articles))
8527 (unless (or (memq article gnus-newsgroup-dormant)
8528 (memq article gnus-newsgroup-marked))
8529 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8530
8531(defun gnus-summary-limit (articles &optional pop)
8532 (if pop
8533 ;; We pop the previous limit off the stack and use that.
8534 (setq articles (car gnus-newsgroup-limits)
8535 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8536 ;; We use the new limit, so we push the old limit on the stack.
8537 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8538 ;; Set the limit.
8539 (setq gnus-newsgroup-limit articles)
8540 (let ((total (length gnus-newsgroup-data))
8541 (data (gnus-data-find-list (gnus-summary-article-number)))
8542 (gnus-summary-mark-below nil) ; Inhibit this.
8543 found)
8544 ;; This will do all the work of generating the new summary buffer
8545 ;; according to the new limit.
8546 (gnus-summary-prepare)
8547 ;; Hide any threads, possibly.
23f87bed 8548 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8549 ;; Try to return to the article you were at, or one in the
8550 ;; neighborhood.
8551 (when data
8552 ;; We try to find some article after the current one.
8553 (while data
8554 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8555 (setq data nil
8556 found t))
8557 (setq data (cdr data))))
8558 (unless found
8559 ;; If there is no data, that means that we were after the last
8560 ;; article. The same goes when we can't find any articles
8561 ;; after the current one.
8562 (goto-char (point-max))
8563 (gnus-summary-find-prev))
6748645f 8564 (gnus-set-mode-line 'summary)
eec82323
LMI
8565 ;; We return how many articles were removed from the summary
8566 ;; buffer as a result of the new limit.
8567 (- total (length gnus-newsgroup-data))))
8568
8569(defsubst gnus-invisible-cut-children (threads)
8570 (let ((num 0))
8571 (while threads
8572 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8573 (incf num))
8574 (pop threads))
8575 (< num 2)))
8576
8577(defsubst gnus-cut-thread (thread)
8578 "Go forwards in the thread until we find an article that we want to display."
8579 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8580 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8581 (numberp gnus-fetch-old-headers)
eec82323
LMI
8582 (eq gnus-build-sparse-threads 'some)
8583 (eq gnus-build-sparse-threads 'more))
8584 ;; Deal with old-fetched headers and sparse threads.
8585 (while (and
8586 thread
8587 (or
8588 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8589 (gnus-summary-article-ancient-p
8590 (mail-header-number (car thread))))
6748645f
LMI
8591 (if (or (<= (length (cdr thread)) 1)
8592 (eq gnus-fetch-old-headers 'invisible))
8593 (setq gnus-newsgroup-limit
8594 (delq (mail-header-number (car thread))
8595 gnus-newsgroup-limit)
8596 thread (cadr thread))
8597 (when (gnus-invisible-cut-children (cdr thread))
8598 (let ((th (cdr thread)))
8599 (while th
8600 (if (memq (mail-header-number (caar th))
a8151ef7 8601 gnus-newsgroup-limit)
6748645f
LMI
8602 (setq thread (car th)
8603 th nil)
8604 (setq th (cdr th))))))))))
eec82323
LMI
8605 thread)
8606
8607(defun gnus-cut-threads (threads)
23f87bed 8608 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8609 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8610 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8611 (numberp gnus-fetch-old-headers)
eec82323
LMI
8612 (eq gnus-build-sparse-threads 'some)
8613 (eq gnus-build-sparse-threads 'more))
8614 (let ((th threads))
8615 (while th
8616 (setcar th (gnus-cut-thread (car th)))
8617 (setq th (cdr th)))))
8618 ;; Remove nixed out threads.
8619 (delq nil threads))
8620
8621(defun gnus-summary-initial-limit (&optional show-if-empty)
8622 "Figure out what the initial limit is supposed to be on group entry.
8623This entails weeding out unwanted dormants, low-scored articles,
8624fetch-old-headers verbiage, and so on."
8625 ;; Most groups have nothing to remove.
f394fa25
MB
8626 (unless (or gnus-inhibit-limiting
8627 (and (null gnus-newsgroup-dormant)
8628 (eq gnus-newsgroup-display 'gnus-not-ignore)
8629 (not (eq gnus-fetch-old-headers 'some))
8630 (not (numberp gnus-fetch-old-headers))
8631 (not (eq gnus-fetch-old-headers 'invisible))
8632 (null gnus-summary-expunge-below)
8633 (not (eq gnus-build-sparse-threads 'some))
8634 (not (eq gnus-build-sparse-threads 'more))
8635 (null gnus-thread-expunge-below)
8636 (not gnus-use-nocem)))
eec82323
LMI
8637 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8638 (setq gnus-newsgroup-limit nil)
8639 (mapatoms
8640 (lambda (node)
8641 (unless (car (symbol-value node))
8642 ;; These threads have no parents -- they are roots.
8643 (let ((nodes (cdr (symbol-value node)))
8644 thread)
8645 (while nodes
8646 (if (and gnus-thread-expunge-below
8647 (< (gnus-thread-total-score (car nodes))
8648 gnus-thread-expunge-below))
8649 (gnus-expunge-thread (pop nodes))
8650 (setq thread (pop nodes))
8651 (gnus-summary-limit-children thread))))))
8652 gnus-newsgroup-dependencies)
8653 ;; If this limitation resulted in an empty group, we might
8654 ;; pop the previous limit and use it instead.
8655 (when (and (not gnus-newsgroup-limit)
8656 show-if-empty)
8657 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8658 gnus-newsgroup-limit))
8659
8660(defun gnus-summary-limit-children (thread)
8661 "Return 1 if this subthread is visible and 0 if it is not."
8662 ;; First we get the number of visible children to this thread. This
8663 ;; is done by recursing down the thread using this function, so this
8664 ;; will really go down to a leaf article first, before slowly
8665 ;; working its way up towards the root.
8666 (when thread
04b61ae9 8667 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8668 (children
eec82323
LMI
8669 (if (cdr thread)
8670 (apply '+ (mapcar 'gnus-summary-limit-children
8671 (cdr thread)))
8672 0))
8673 (number (mail-header-number (car thread)))
8674 score)
8675 (if (and
8676 (not (memq number gnus-newsgroup-marked))
8677 (or
8678 ;; If this article is dormant and has absolutely no visible
8679 ;; children, then this article isn't visible.
8680 (and (memq number gnus-newsgroup-dormant)
8681 (zerop children))
8682 ;; If this is "fetch-old-headered" and there is no
8683 ;; visible children, then we don't want this article.
16409b0b
GM
8684 (and (or (eq gnus-fetch-old-headers 'some)
8685 (numberp gnus-fetch-old-headers))
eec82323
LMI
8686 (gnus-summary-article-ancient-p number)
8687 (zerop children))
6748645f
LMI
8688 ;; If this is "fetch-old-headered" and `invisible', then
8689 ;; we don't want this article.
8690 (and (eq gnus-fetch-old-headers 'invisible)
8691 (gnus-summary-article-ancient-p number))
eec82323
LMI
8692 ;; If this is a sparsely inserted article with no children,
8693 ;; we don't want it.
8694 (and (eq gnus-build-sparse-threads 'some)
8695 (gnus-summary-article-sparse-p number)
8696 (zerop children))
8697 ;; If we use expunging, and this article is really
8698 ;; low-scored, then we don't want this article.
8699 (when (and gnus-summary-expunge-below
8700 (< (setq score
8701 (or (cdr (assq number gnus-newsgroup-scored))
8702 gnus-summary-default-score))
8703 gnus-summary-expunge-below))
8704 ;; We increase the expunge-tally here, but that has
8705 ;; nothing to do with the limits, really.
8706 (incf gnus-newsgroup-expunged-tally)
8707 ;; We also mark as read here, if that's wanted.
8708 (when (and gnus-summary-mark-below
8709 (< score gnus-summary-mark-below))
8710 (setq gnus-newsgroup-unreads
8711 (delq number gnus-newsgroup-unreads))
8712 (if gnus-newsgroup-auto-expire
8713 (push number gnus-newsgroup-expirable)
8714 (push (cons number gnus-low-score-mark)
8715 gnus-newsgroup-reads)))
8716 t)
23f87bed
MB
8717 ;; Do the `display' group parameter.
8718 (and gnus-newsgroup-display
8719 (not (funcall gnus-newsgroup-display)))
eec82323 8720 ;; Check NoCeM things.
01c52d31
MB
8721 (when (and gnus-use-nocem
8722 (gnus-nocem-unwanted-article-p
8723 (mail-header-id (car thread))))
8724 (setq gnus-newsgroup-unreads
8725 (delq number gnus-newsgroup-unreads))
8726 t)))
eec82323
LMI
8727 ;; Nope, invisible article.
8728 0
8729 ;; Ok, this article is to be visible, so we add it to the limit
8730 ;; and return 1.
8731 (push number gnus-newsgroup-limit)
8732 1))))
8733
8734(defun gnus-expunge-thread (thread)
8735 "Mark all articles in THREAD as read."
8736 (let* ((number (mail-header-number (car thread))))
8737 (incf gnus-newsgroup-expunged-tally)
8738 ;; We also mark as read here, if that's wanted.
8739 (setq gnus-newsgroup-unreads
8740 (delq number gnus-newsgroup-unreads))
8741 (if gnus-newsgroup-auto-expire
8742 (push number gnus-newsgroup-expirable)
8743 (push (cons number gnus-low-score-mark)
8744 gnus-newsgroup-reads)))
8745 ;; Go recursively through all subthreads.
8746 (mapcar 'gnus-expunge-thread (cdr thread)))
8747
8748;; Summary article oriented commands
8749
8750(defun gnus-summary-refer-parent-article (n)
8751 "Refer parent article N times.
8752If N is negative, go to ancestor -N instead.
8753The difference between N and the number of articles fetched is returned."
8754 (interactive "p")
eec82323
LMI
8755 (let ((skip 1)
8756 error header ref)
8757 (when (not (natnump n))
8758 (setq skip (abs n)
8759 n 1))
8760 (while (and (> n 0)
8761 (not error))
8762 (setq header (gnus-summary-article-header))
8763 (if (and (eq (mail-header-number header)
8764 (cdr gnus-article-current))
8765 (equal gnus-newsgroup-name
8766 (car gnus-article-current)))
8767 ;; If we try to find the parent of the currently
8768 ;; displayed article, then we take a look at the actual
8769 ;; References header, since this is slightly more
8770 ;; reliable than the References field we got from the
8771 ;; server.
c7a91ce1 8772 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8773 (nnheader-narrow-to-headers)
8774 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8775 (when (setq ref (message-fetch-field "in-reply-to"))
8776 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8777 (widen))
8778 (setq ref
8779 ;; It's not the current article, so we take a bet on
8780 ;; the value we got from the server.
8781 (mail-header-references header)))
8782 (if (and ref
8783 (not (equal ref "")))
8784 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8785 (gnus-message 1 "Couldn't find parent"))
8786 (gnus-message 1 "No references in article %d"
8787 (gnus-summary-article-number))
8788 (setq error t))
8789 (decf n))
8790 (gnus-summary-position-point)
8791 n))
8792
8793(defun gnus-summary-refer-references ()
8794 "Fetch all articles mentioned in the References header.
6748645f 8795Return the number of articles fetched."
eec82323 8796 (interactive)
eec82323
LMI
8797 (let ((ref (mail-header-references (gnus-summary-article-header)))
8798 (current (gnus-summary-article-number))
8799 (n 0))
8800 (if (or (not ref)
8801 (equal ref ""))
8802 (error "No References in the current article")
8803 ;; For each Message-ID in the References header...
8804 (while (string-match "<[^>]*>" ref)
8805 (incf n)
8806 ;; ... fetch that article.
8807 (gnus-summary-refer-article
8808 (prog1 (match-string 0 ref)
8809 (setq ref (substring ref (match-end 0))))))
8810 (gnus-summary-goto-subject current)
8811 (gnus-summary-position-point)
8812 n)))
8813
6748645f
LMI
8814(defun gnus-summary-refer-thread (&optional limit)
8815 "Fetch all articles in the current thread.
8816If LIMIT (the numerical prefix), fetch that many old headers instead
8817of what's specified by the `gnus-refer-thread-limit' variable."
8818 (interactive "P")
8819 (let ((id (mail-header-id (gnus-summary-article-header)))
8820 (limit (if limit (prefix-numeric-value limit)
8821 gnus-refer-thread-limit)))
6748645f
LMI
8822 (unless (eq gnus-fetch-old-headers 'invisible)
8823 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8824 ;; Retrieve the headers and read them in.
23f87bed
MB
8825 (if (eq (if (numberp limit)
8826 (gnus-retrieve-headers
8827 (list (min
8828 (+ (mail-header-number
8829 (gnus-summary-article-header))
8830 limit)
8831 gnus-newsgroup-end))
8832 gnus-newsgroup-name (* limit 2))
8833 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8834 ;; headers.
8835 (gnus-retrieve-headers (list gnus-newsgroup-end)
8836 gnus-newsgroup-name limit))
6748645f
LMI
8837 'nov)
8838 (gnus-build-all-threads)
23f87bed 8839 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8840 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8841 (gnus-summary-limit-include-thread id)))
8842
16409b0b
GM
8843(defun gnus-summary-refer-article (message-id)
8844 "Fetch an article specified by MESSAGE-ID."
8845 (interactive "sMessage-ID: ")
eec82323
LMI
8846 (when (and (stringp message-id)
8847 (not (zerop (length message-id))))
23f87bed 8848 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8849 ;; Construct the correct Message-ID if necessary.
8850 ;; Suggested by tale@pawl.rpi.edu.
8851 (unless (string-match "^<" message-id)
8852 (setq message-id (concat "<" message-id)))
8853 (unless (string-match ">$" message-id)
8854 (setq message-id (concat message-id ">")))
23f87bed
MB
8855 ;; People often post MIDs from URLs, so unhex it:
8856 (unless (string-match "@" message-id)
8857 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8858 (let* ((header (gnus-id-to-header message-id))
8859 (sparse (and header
8860 (gnus-summary-article-sparse-p
a8151ef7
LMI
8861 (mail-header-number header))
8862 (memq (mail-header-number header)
16409b0b
GM
8863 gnus-newsgroup-limit)))
8864 number)
6748645f
LMI
8865 (cond
8866 ;; If the article is present in the buffer we just go to it.
8867 ((and header
8868 (or (not (gnus-summary-article-sparse-p
8869 (mail-header-number header)))
8870 sparse))
8871 (prog1
8872 (gnus-summary-goto-article
8873 (mail-header-number header) nil t)
8874 (when sparse
8875 (gnus-summary-update-article (mail-header-number header)))))
8876 (t
16409b0b
GM
8877 ;; We fetch the article.
8878 (catch 'found
8879 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8880 (when (and (gnus-check-server gnus-override-method)
8881 ;; Fetch the header,
8882 (setq number (gnus-summary-insert-subject message-id)))
8883 ;; and display the article.
eec82323 8884 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8885 (throw 'found t)))
8886 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8887
8888(defun gnus-refer-article-methods ()
8f688cb0 8889 "Return a list of referable methods."
16409b0b
GM
8890 (cond
8891 ;; No method, so we default to current and native.
8892 ((null gnus-refer-article-method)
8893 (list gnus-current-select-method gnus-select-method))
8894 ;; Current.
8895 ((eq 'current gnus-refer-article-method)
8896 (list gnus-current-select-method))
8897 ;; List of select methods.
d4dfaa19
DL
8898 ((not (and (symbolp (car gnus-refer-article-method))
8899 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8900 (let (out)
8901 (dolist (method gnus-refer-article-method)
8902 (push (if (eq 'current method)
8903 gnus-current-select-method
8904 method)
8905 out))
8906 (nreverse out)))
8907 ;; One single select method.
8908 (t
8909 (list gnus-refer-article-method))))
6748645f
LMI
8910
8911(defun gnus-summary-edit-parameters ()
8912 "Edit the group parameters of the current group."
8913 (interactive)
8914 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8915
16409b0b
GM
8916(defun gnus-summary-customize-parameters ()
8917 "Customize the group parameters of the current group."
8918 (interactive)
8919 (gnus-group-customize gnus-newsgroup-name))
8920
eec82323
LMI
8921(defun gnus-summary-enter-digest-group (&optional force)
8922 "Enter an nndoc group based on the current article.
8923If FORCE, force a digest interpretation. If not, try
8924to guess what the document format is."
8925 (interactive "P")
eec82323 8926 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8927 (save-window-excursion
8928 (save-excursion
8929 (let (gnus-article-prepare-hook
8930 gnus-display-mime-function
8931 gnus-break-pages)
8932 (gnus-summary-select-article))))
eec82323
LMI
8933 (setq gnus-current-window-configuration conf)
8934 (let* ((name (format "%s-%d"
8935 (gnus-group-prefixed-name
8936 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8937 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8938 gnus-current-article)))
8939 (ogroup gnus-newsgroup-name)
8940 (params (append (gnus-info-params (gnus-get-info ogroup))
8941 (list (cons 'to-group ogroup))
23f87bed 8942 (list (cons 'parent-group ogroup))
eec82323
LMI
8943 (list (cons 'save-article-group ogroup))))
8944 (case-fold-search t)
8945 (buf (current-buffer))
16409b0b 8946 dig to-address)
c7a91ce1 8947 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8948 ;; Have the digest group inherit the main mail address of
8949 ;; the parent article.
23f87bed
MB
8950 (when (setq to-address (or (gnus-fetch-field "reply-to")
8951 (gnus-fetch-field "from")))
343d6628
MB
8952 (setq params
8953 (append
8954 (list (cons 'to-address
8955 (funcall gnus-decode-encoded-address-function
8956 to-address))))))
eec82323
LMI
8957 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8958 (insert-buffer-substring gnus-original-article-buffer)
8959 ;; Remove lines that may lead nndoc to misinterpret the
8960 ;; document type.
8961 (narrow-to-region
8962 (goto-char (point-min))
8963 (or (search-forward "\n\n" nil t) (point)))
8964 (goto-char (point-min))
16409b0b 8965 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8966 (widen))
8967 (unwind-protect
23f87bed 8968 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8969 (gnus-newsgroup-ephemeral-ignored-charsets
8970 gnus-newsgroup-ignored-charsets))
8971 (gnus-group-read-ephemeral-group
8972 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8973 (nndoc-article-type
23f87bed
MB
8974 ,(if force 'mbox 'guess)))
8975 t nil nil nil
8976 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8977 "ADAPT")))))
16409b0b 8978 ;; Make all postings to this group go to the parent group.
23f87bed
MB
8979 (nconc (gnus-info-params (gnus-get-info name))
8980 params)
8981 ;; Couldn't select this doc group.
8982 (switch-to-buffer buf)
8983 (gnus-set-global-variables)
8984 (gnus-configure-windows 'summary)
8985 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
8986 (kill-buffer dig)))))
8987
8988(defun gnus-summary-read-document (n)
8989 "Open a new group based on the current article(s).
8990This will allow you to read digests and other similar
8991documents as newsgroups.
8992Obeys the standard process/prefix convention."
8993 (interactive "P")
01c52d31 8994 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
8995 (params (append (gnus-info-params (gnus-get-info ogroup))
8996 (list (cons 'to-group ogroup))))
01c52d31
MB
8997 group egroup groups vgroup)
8998 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
8999 (setq group (format "%s-%d" gnus-newsgroup-name article))
9000 (gnus-summary-remove-process-mark article)
9001 (when (gnus-summary-display-article article)
9002 (save-excursion
16409b0b 9003 (with-temp-buffer
eec82323
LMI
9004 (insert-buffer-substring gnus-original-article-buffer)
9005 ;; Remove some headers that may lead nndoc to make
9006 ;; the wrong guess.
9007 (message-narrow-to-head)
9008 (goto-char (point-min))
01c52d31 9009 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9010 (widen)
9011 (if (setq egroup
9012 (gnus-group-read-ephemeral-group
9013 group `(nndoc ,group (nndoc-address ,(current-buffer))
9014 (nndoc-article-type guess))
9015 t nil t))
9016 (progn
c7a91ce1 9017 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9018 (nconc (gnus-info-params (gnus-get-info egroup))
9019 params)
9020 (push egroup groups))
9021 ;; Couldn't select this doc group.
9022 (gnus-error 3 "Article couldn't be entered"))))))
9023 ;; Now we have selected all the documents.
9024 (cond
9025 ((not groups)
9026 (error "None of the articles could be interpreted as documents"))
9027 ((gnus-group-read-ephemeral-group
9028 (setq vgroup (format
9029 "nnvirtual:%s-%s" gnus-newsgroup-name
9030 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9031 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9032 t
9033 (cons (current-buffer) 'summary)))
9034 (t
9035 (error "Couldn't select virtual nndoc group")))))
9036
9037(defun gnus-summary-isearch-article (&optional regexp-p)
9038 "Do incremental search forward on the current article.
9039If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9040 (interactive "P")
eec82323
LMI
9041 (gnus-summary-select-article)
9042 (gnus-configure-windows 'article)
9043 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9044 (save-restriction
9045 (widen)
9046 (isearch-forward regexp-p))))
eec82323 9047
01c52d31
MB
9048(defun gnus-summary-repeat-search-article-forward ()
9049 "Repeat the previous search forwards."
9050 (interactive)
9051 (unless gnus-last-search-regexp
9052 (error "No previous search"))
9053 (gnus-summary-search-article-forward gnus-last-search-regexp))
9054
9055(defun gnus-summary-repeat-search-article-backward ()
9056 "Repeat the previous search backwards."
9057 (interactive)
9058 (unless gnus-last-search-regexp
9059 (error "No previous search"))
9060 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9061
eec82323
LMI
9062(defun gnus-summary-search-article-forward (regexp &optional backward)
9063 "Search for an article containing REGEXP forward.
9064If BACKWARD, search backward instead."
9065 (interactive
9066 (list (read-string
9067 (format "Search article %s (regexp%s): "
9068 (if current-prefix-arg "backward" "forward")
9069 (if gnus-last-search-regexp
9070 (concat ", default " gnus-last-search-regexp)
9071 "")))
9072 current-prefix-arg))
eec82323
LMI
9073 (if (string-equal regexp "")
9074 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9075 (setq gnus-last-search-regexp regexp)
9076 (setq gnus-article-before-search gnus-current-article))
9077 ;; Intentionally set gnus-last-article.
9078 (setq gnus-last-article gnus-article-before-search)
9079 (let ((gnus-last-article gnus-last-article))
9080 (if (gnus-summary-search-article regexp backward)
9081 (gnus-summary-show-thread)
abc40aab 9082 (signal 'search-failed (list regexp)))))
eec82323
LMI
9083
9084(defun gnus-summary-search-article-backward (regexp)
9085 "Search for an article containing REGEXP backward."
9086 (interactive
9087 (list (read-string
9088 (format "Search article backward (regexp%s): "
9089 (if gnus-last-search-regexp
9090 (concat ", default " gnus-last-search-regexp)
9091 "")))))
9092 (gnus-summary-search-article-forward regexp 'backward))
9093
9094(defun gnus-summary-search-article (regexp &optional backward)
9095 "Search for an article containing REGEXP.
9096Optional argument BACKWARD means do search for backward.
9097`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9098 ;; We have to require this here to make sure that the following
9099 ;; dynamic binding isn't shadowed by autoloading.
9100 (require 'gnus-async)
16409b0b 9101 (require 'gnus-art)
eec82323 9102 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9103 (gnus-article-prepare-hook nil)
eec82323
LMI
9104 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9105 (gnus-use-article-prefetch nil)
9106 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9107 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9108 (gnus-visual nil)
9109 (gnus-keep-backlog nil)
9110 (gnus-break-pages nil)
9111 (gnus-summary-display-arrow nil)
9112 (gnus-updated-mode-lines nil)
9113 (gnus-auto-center-summary nil)
eec82323 9114 (sum (current-buffer))
16409b0b 9115 (gnus-display-mime-function nil)
eec82323
LMI
9116 (found nil)
9117 point)
9118 (gnus-save-hidden-threads
9119 (gnus-summary-select-article)
9120 (set-buffer gnus-article-buffer)
16409b0b 9121 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9122 (when backward
9123 (forward-line -1))
9124 (while (not found)
9125 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9126 (if (if backward
9127 (re-search-backward regexp nil t)
9128 (re-search-forward regexp nil t))
9129 ;; We found the regexp.
9130 (progn
9131 (setq found 'found)
9132 (beginning-of-line)
9133 (set-window-start
9134 (get-buffer-window (current-buffer))
9135 (point))
9136 (forward-line 1)
16409b0b
GM
9137 (set-window-point
9138 (get-buffer-window (current-buffer))
9139 (point))
eec82323
LMI
9140 (set-buffer sum)
9141 (setq point (point)))
9142 ;; We didn't find it, so we go to the next article.
9143 (set-buffer sum)
9144 (setq found 'not)
9145 (while (eq found 'not)
9146 (if (not (if backward (gnus-summary-find-prev)
9147 (gnus-summary-find-next)))
9148 ;; No more articles.
9149 (setq found t)
9150 ;; Select the next article and adjust point.
9151 (unless (gnus-summary-article-sparse-p
9152 (gnus-summary-article-number))
9153 (setq found nil)
9154 (gnus-summary-select-article)
9155 (set-buffer gnus-article-buffer)
9156 (widen)
9157 (goto-char (if backward (point-max) (point-min))))))))
9158 (gnus-message 7 ""))
9159 ;; Return whether we found the regexp.
9160 (when (eq found 'found)
9161 (goto-char point)
9162 (gnus-summary-show-thread)
9163 (gnus-summary-goto-subject gnus-current-article)
9164 (gnus-summary-position-point)
9165 t)))
9166
23f87bed
MB
9167(defun gnus-find-matching-articles (header regexp)
9168 "Return a list of all articles that match REGEXP on HEADER.
9169This search includes all articles in the current group that Gnus has
9170fetched headers for, whether they are displayed or not."
9171 (let ((articles nil)
c7a91ce1 9172 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9173 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9174 (case-fold-search t))
9175 (dolist (header gnus-newsgroup-headers)
9176 (when (string-match regexp (funcall func header))
9177 (push (mail-header-number header) articles)))
9178 (nreverse articles)))
9179
eec82323 9180(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9181 not-case-fold not-matching)
eec82323
LMI
9182 "Return a list of all articles that match REGEXP on HEADER.
9183The search stars on the current article and goes forwards unless
9184BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9185If UNREAD is non-nil, only unread articles will
9186be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9187in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9188not match REGEXP on HEADER."
9189 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9190 articles d func)
9191 (if (consp header)
9192 (if (eq (car header) 'extra)
9193 (setq func
9194 `(lambda (h)
9195 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9196 "")))
9197 (error "%s is an invalid header" header))
9198 (unless (fboundp (intern (concat "mail-header-" header)))
9199 (error "%s is not a valid header" header))
9200 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9201 (dolist (d (if (eq backward 'all)
9202 gnus-newsgroup-data
9203 (gnus-data-find-list
9204 (gnus-summary-article-number)
9205 (gnus-data-list backward))))
9206 (when (and (or (not unread) ; We want all articles...
9207 (gnus-data-unread-p d)) ; Or just unreads.
9208 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9209 (if not-matching
a1506d29 9210 (not (string-match
47b63dfa
SZ
9211 regexp
9212 (funcall func (gnus-data-header d))))
9213 (string-match regexp
9214 (funcall func (gnus-data-header d)))))
9215 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9216 (nreverse articles)))
9217
9218(defun gnus-summary-execute-command (header regexp command &optional backward)
9219 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9220If HEADER is an empty string (or nil), the match is done on the entire
9221article. If BACKWARD (the prefix) is non-nil, search backward instead."
9222 (interactive
9223 (list (let ((completion-ignore-case t))
9224 (completing-read
9225 "Header name: "
23f87bed
MB
9226 (mapcar (lambda (header) (list (format "%s" header)))
9227 (append
9228 '("Number" "Subject" "From" "Lines" "Date"
9229 "Message-ID" "Xref" "References" "Body")
9230 gnus-extra-headers))
eec82323
LMI
9231 nil 'require-match))
9232 (read-string "Regexp: ")
9233 (read-key-sequence "Command: ")
9234 current-prefix-arg))
9235 (when (equal header "Body")
9236 (setq header ""))
eec82323
LMI
9237 ;; Hidden thread subtrees must be searched as well.
9238 (gnus-summary-show-all-threads)
9239 ;; We don't want to change current point nor window configuration.
9240 (save-excursion
9241 (save-window-excursion
23f87bed
MB
9242 (let (gnus-visual
9243 gnus-treat-strip-trailing-blank-lines
9244 gnus-treat-strip-leading-blank-lines
9245 gnus-treat-strip-multiple-blank-lines
9246 gnus-treat-hide-boring-headers
9247 gnus-treat-fold-newsgroups
9248 gnus-article-prepare-hook)
9249 (gnus-message 6 "Executing %s..." (key-description command))
9250 ;; We'd like to execute COMMAND interactively so as to give arguments.
9251 (gnus-execute header regexp
9252 `(call-interactively ',(key-binding command))
9253 backward)
9254 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9255
9256(defun gnus-summary-beginning-of-article ()
9257 "Scroll the article back to the beginning."
9258 (interactive)
eec82323
LMI
9259 (gnus-summary-select-article)
9260 (gnus-configure-windows 'article)
9261 (gnus-eval-in-buffer-window gnus-article-buffer
9262 (widen)
9263 (goto-char (point-min))
23f87bed 9264 (when gnus-break-pages
eec82323
LMI
9265 (gnus-narrow-to-page))))
9266
9267(defun gnus-summary-end-of-article ()
9268 "Scroll to the end of the article."
9269 (interactive)
eec82323
LMI
9270 (gnus-summary-select-article)
9271 (gnus-configure-windows 'article)
9272 (gnus-eval-in-buffer-window gnus-article-buffer
9273 (widen)
9274 (goto-char (point-max))
9275 (recenter -3)
23f87bed 9276 (when gnus-break-pages
eec82323
LMI
9277 (gnus-narrow-to-page))))
9278
23f87bed
MB
9279(defun gnus-summary-print-truncate-and-quote (string &optional len)
9280 "Truncate to LEN and quote all \"(\"'s in STRING."
9281 (gnus-replace-in-string (if (and len (> (length string) len))
9282 (substring string 0 len)
9283 string)
9284 "[()]" "\\\\\\&"))
9285
6748645f 9286(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9287 "Generate and print a PostScript image of the process-marked (mail) articles.
9288
9289If used interactively, print the current article if none are
9290process-marked. With prefix arg, prompt the user for the name of the
9291file to save in.
6748645f 9292
23f87bed
MB
9293When used from Lisp, accept two optional args FILENAME and N. N means
9294to print the next N articles. If N is negative, print the N previous
9295articles. If N is nil and articles have been marked with the process
9296mark, print these instead.
eec82323 9297
16409b0b 9298If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9299printer. If FILENAME is a string, save the PostScript image in a file with
9300that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9301to save in."
676a7cc9 9302 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9303 (dolist (article (gnus-summary-work-articles n))
9304 (gnus-summary-select-article nil nil 'pseudo article)
9305 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9306 (gnus-print-buffer))
676a7cc9
SZ
9307 (gnus-summary-remove-process-mark article))
9308 (ps-despool filename))
eec82323 9309
23f87bed
MB
9310(defun gnus-print-buffer ()
9311 (let ((buffer (generate-new-buffer " *print*")))
9312 (unwind-protect
9313 (progn
9314 (copy-to-buffer buffer (point-min) (point-max))
9315 (set-buffer buffer)
9316 (gnus-remove-text-with-property 'gnus-decoration)
9317 (when (gnus-visual-p 'article-highlight 'highlight)
9318 ;; Copy-to-buffer doesn't copy overlay. So redo
9319 ;; highlight.
9320 (let ((gnus-article-buffer buffer))
9321 (gnus-article-highlight-citation t)
9322 (gnus-article-highlight-signature)
9323 (gnus-article-emphasize)
9324 (gnus-article-delete-invisible-text)))
9325 (let ((ps-left-header
9326 (list
9327 (concat "("
9328 (gnus-summary-print-truncate-and-quote
9329 (mail-header-subject gnus-current-headers)
9330 66) ")")
9331 (concat "("
9332 (gnus-summary-print-truncate-and-quote
9333 (mail-header-from gnus-current-headers)
9334 45) ")")))
9335 (ps-right-header
9336 (list
9337 "/pagenumberstring load"
9338 (concat "("
9339 (mail-header-date gnus-current-headers) ")"))))
9340 (gnus-run-hooks 'gnus-ps-print-hook)
9341 (save-excursion
a7b50e1c 9342 (if ps-print-color-p
23f87bed
MB
9343 (ps-spool-buffer-with-faces)
9344 (ps-spool-buffer)))))
9345 (kill-buffer buffer))))
9346
eec82323 9347(defun gnus-summary-show-article (&optional arg)
23f87bed 9348 "Force redisplaying of the current article.
16409b0b
GM
9349If ARG (the prefix) is a number, show the article with the charset
9350defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9351input.
16409b0b 9352If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9353without any article massaging functions being run. Normally, the key
9354strokes are `C-u g'."
eec82323 9355 (interactive "P")
16409b0b
GM
9356 (cond
9357 ((numberp arg)
23f87bed 9358 (gnus-summary-show-article t)
16409b0b
GM
9359 (let ((gnus-newsgroup-charset
9360 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9361 (mm-read-coding-system
9362 "View as charset: " ;; actually it is coding system.
01c52d31 9363 (with-current-buffer gnus-article-buffer
23f87bed 9364 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9365 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9366 (gnus-summary-select-article nil 'force)
9367 (let ((deps gnus-newsgroup-dependencies)
9368 head header lines)
c7a91ce1 9369 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9370 (save-restriction
9371 (message-narrow-to-head)
9372 (setq head (buffer-string))
9373 (goto-char (point-min))
9374 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9375 (goto-char (point-max))
9376 (widen)
9377 (setq lines (1- (count-lines (point) (point-max))))))
9378 (with-temp-buffer
9379 (insert (format "211 %d Article retrieved.\n"
9380 (cdr gnus-article-current)))
9381 (insert head)
9382 (if lines (insert (format "Lines: %d\n" lines)))
9383 (insert ".\n")
9384 (let ((nntp-server-buffer (current-buffer)))
9385 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9386 (gnus-data-set-header
9387 (gnus-data-find (cdr gnus-article-current))
9388 header)
9389 (gnus-summary-update-article-line
9390 (cdr gnus-article-current) header)
9391 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9392 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9393 ((not arg)
9394 ;; Select the article the normal way.
9395 (gnus-summary-select-article nil 'force))
9396 (t
9397 ;; We have to require this here to make sure that the following
9398 ;; dynamic binding isn't shadowed by autoloading.
9399 (require 'gnus-async)
9400 (require 'gnus-art)
eec82323
LMI
9401 ;; Bind the article treatment functions to nil.
9402 (let ((gnus-have-all-headers t)
eec82323 9403 gnus-article-prepare-hook
16409b0b
GM
9404 gnus-article-decode-hook
9405 gnus-display-mime-function
9406 gnus-break-pages)
9407 ;; Destroy any MIME parts.
9408 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9409 (with-current-buffer gnus-article-buffer
16409b0b
GM
9410 (mm-destroy-parts gnus-article-mime-handles)
9411 ;; Set it to nil for safety reason.
9412 (setq gnus-article-mime-handle-alist nil)
9413 (setq gnus-article-mime-handles nil)))
9414 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9415 (gnus-summary-goto-subject gnus-current-article)
9416 (gnus-summary-position-point))
9417
23f87bed
MB
9418(defun gnus-summary-show-raw-article ()
9419 "Show the raw article without any article massaging functions being run."
9420 (interactive)
9421 (gnus-summary-show-article t))
9422
eec82323
LMI
9423(defun gnus-summary-verbose-headers (&optional arg)
9424 "Toggle permanent full header display.
9425If ARG is a positive number, turn header display on.
9426If ARG is a negative number, turn header display off."
9427 (interactive "P")
eec82323
LMI
9428 (setq gnus-show-all-headers
9429 (cond ((or (not (numberp arg))
9430 (zerop arg))
9431 (not gnus-show-all-headers))
9432 ((natnump arg)
9433 t)))
9434 (gnus-summary-show-article))
9435
9436(defun gnus-summary-toggle-header (&optional arg)
9437 "Show the headers if they are hidden, or hide them if they are shown.
9438If ARG is a positive number, show the entire header.
9439If ARG is a negative number, hide the unwanted header lines."
9440 (interactive "P")
23f87bed
MB
9441 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9442 (get-buffer-window gnus-article-buffer t))))
9443 (with-current-buffer gnus-article-buffer
9444 (widen)
9445 (article-narrow-to-head)
c7a91ce1 9446 (let* ((inhibit-read-only t)
16409b0b 9447 (inhibit-point-motion-hooks t)
23f87bed
MB
9448 (hidden (if (numberp arg)
9449 (>= arg 0)
f0096211
MB
9450 (or (not (looking-at "[^ \t\n]+:"))
9451 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9452 s e)
9453 (delete-region (point-min) (point-max))
667e0ba6
SM
9454 (with-current-buffer gnus-original-article-buffer
9455 (goto-char (setq s (point-min)))
23f87bed
MB
9456 (setq e (if (search-forward "\n\n" nil t)
9457 (1- (point))
9458 (point-max))))
667e0ba6 9459 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9460 (run-hooks 'gnus-article-decode-hook)
9461 (if hidden
9462 (let ((gnus-treat-hide-headers nil)
9463 (gnus-treat-hide-boring-headers nil))
9464 (gnus-delete-wash-type 'headers)
9465 (gnus-treat-article 'head))
9466 (gnus-treat-article 'head))
9467 (widen)
9468 (if window
9469 (set-window-start window (goto-char (point-min))))
9470 (if gnus-break-pages
9471 (gnus-narrow-to-page)
9472 (when (gnus-visual-p 'page-marker)
c7a91ce1 9473 (let ((inhibit-read-only t))
23f87bed
MB
9474 (gnus-remove-text-with-property 'gnus-prev)
9475 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9476 (gnus-set-mode-line 'article)))))
eec82323
LMI
9477
9478(defun gnus-summary-show-all-headers ()
9479 "Make all header lines visible."
9480 (interactive)
23f87bed 9481 (gnus-summary-toggle-header 1))
eec82323 9482
eec82323
LMI
9483(defun gnus-summary-caesar-message (&optional arg)
9484 "Caesar rotate the current article by 13.
01c52d31
MB
9485With a non-numerical prefix, also rotate headers. A numerical
9486prefix specifies how many places to rotate each letter forward."
eec82323 9487 (interactive "P")
eec82323
LMI
9488 (gnus-summary-select-article)
9489 (let ((mail-header-separator ""))
9490 (gnus-eval-in-buffer-window gnus-article-buffer
9491 (save-restriction
9492 (widen)
9493 (let ((start (window-start))
c7a91ce1 9494 (inhibit-read-only t))
01c52d31
MB
9495 (if (equal arg '(4))
9496 (message-caesar-buffer-body nil t)
9497 (message-caesar-buffer-body arg))
ff4d3926
MB
9498 (set-window-start (get-buffer-window (current-buffer)) start)))))
9499 ;; Create buttons and stuff...
9500 (gnus-treat-article nil))
eec82323 9501
704f1663
GM
9502(declare-function idna-to-unicode "ext:idna" (str))
9503
01c52d31
MB
9504(defun gnus-summary-idna-message (&optional arg)
9505 "Decode IDNA encoded domain names in the current articles.
9506IDNA encoded domain names looks like `xn--bar'. If a string
9507remain unencoded after running this function, it is likely an
9508invalid IDNA string (`xn--bar' is invalid).
9509
9510You must have GNU Libidn (`http://www.gnu.org/software/libidn/')
9511installed for this command to work."
9512 (interactive "P")
9513 (if (not (and (condition-case nil (require 'idna)
9514 (file-error))
9515 (mm-coding-system-p 'utf-8)
9516 (executable-find (symbol-value 'idna-program))))
9517 (gnus-message
9518 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9519 (gnus-summary-select-article)
9520 (let ((mail-header-separator ""))
9521 (gnus-eval-in-buffer-window gnus-article-buffer
9522 (save-restriction
9523 (widen)
9524 (let ((start (window-start))
9525 buffer-read-only)
9526 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9527 (replace-match (idna-to-unicode (match-string 1))))
9528 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9529
9530(defun gnus-summary-morse-message (&optional arg)
9531 "Morse decode the current article."
9532 (interactive "P")
9533 (gnus-summary-select-article)
9534 (let ((mail-header-separator ""))
9535 (gnus-eval-in-buffer-window gnus-article-buffer
9536 (save-excursion
9537 (save-restriction
9538 (widen)
9539 (let ((pos (window-start))
c7a91ce1 9540 (inhibit-read-only t))
23f87bed
MB
9541 (goto-char (point-min))
9542 (when (message-goto-body)
9543 (gnus-narrow-to-body))
9544 (goto-char (point-min))
01c52d31 9545