* progmodes/python.el (python-font-lock-keywords): Handle qualified decorators
[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-mark-copied-or-moved-articles-as-expirable nil
672 "If non-nil, mark articles copied or moved to auto-expire group as expirable.
673If nil, the expirable marks will be unchanged except that the marks
674will be removed when copying or moving articles to a group that has
675not turned auto-expire on. If non-nil, articles that have been read
676will be marked as expirable when being copied or moved to a group in
677which auto-expire is turned on."
678 :version "23.2"
679 :type 'boolean
680 :group 'gnus-summary-marks)
681
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682(defcustom gnus-view-pseudos nil
683 "*If `automatic', pseudo-articles will be viewed automatically.
684If `not-confirm', pseudos will be viewed automatically, and the user
685will not be asked to confirm the command."
686 :group 'gnus-extract-view
687 :type '(choice (const :tag "off" nil)
688 (const automatic)
689 (const not-confirm)))
690
691(defcustom gnus-view-pseudos-separately t
692 "*If non-nil, one pseudo-article will be created for each file to be viewed.
693If nil, all files that use the same viewing command will be given as a
694list of parameters to that command."
695 :group 'gnus-extract-view
696 :type 'boolean)
697
698(defcustom gnus-insert-pseudo-articles t
699 "*If non-nil, insert pseudo-articles when decoding articles."
700 :group 'gnus-extract-view
701 :type 'boolean)
702
703(defcustom gnus-summary-dummy-line-format
23f87bed 704 " %(: :%) %S\n"
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705 "*The format specification for the dummy roots in the summary buffer.
706It works along the same lines as a normal formatting string,
707with some simple extensions.
708
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709%S The subject
710
711General format specifiers can also be used.
712See `(gnus)Formatting Variables'."
713 :link '(custom-manual "(gnus)Formatting Variables")
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714 :group 'gnus-threading
715 :type 'string)
716
16409b0b 717(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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718 "*The format specification for the summary mode line.
719It works along the same lines as a normal formatting string,
720with some simple extensions:
721
722%G Group name
723%p Unprefixed group name
724%A Current article number
6748645f 725%z Current article score
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726%V Gnus version
727%U Number of unread articles in the group
728%e Number of unselected articles in the group
729%Z A string with unread/unselected article counts
730%g Shortish group name
731%S Subject of the current article
732%u User-defined spec
733%s Current score file name
734%d Number of dormant articles
735%r Number of articles that have been marked as read in this session
736%E Number of articles expunged by the score files"
737 :group 'gnus-summary-format
738 :type 'string)
739
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740(defcustom gnus-list-identifiers nil
741 "Regexp that matches list identifiers to be removed from subject.
742This can also be a list of regexps."
58e39d05 743 :version "21.1"
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744 :group 'gnus-summary-format
745 :group 'gnus-article-hiding
746 :type '(choice (const :tag "none" nil)
747 (regexp :value ".*")
748 (repeat :value (".*") regexp)))
749
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750(defcustom gnus-summary-mark-below 0
751 "*Mark all articles with a score below this variable as read.
752This variable is local to each summary buffer and usually set by the
753score file."
754 :group 'gnus-score-default
755 :type 'integer)
756
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757(defun gnus-widget-reversible-match (widget value)
758 "Ignoring WIDGET, convert VALUE to internal form.
759VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
760 ;; (debug value)
761 (or (symbolp value)
762 (and (listp value)
763 (eq (length value) 2)
764 (eq (nth 0 value) 'not)
765 (symbolp (nth 1 value)))))
766
767(defun gnus-widget-reversible-to-internal (widget value)
768 "Ignoring WIDGET, convert VALUE to internal form.
769VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
770FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
771 ;; (debug value)
772 (if (atom value)
773 (list value nil)
774 (list (nth 1 value) t)))
775
776(defun gnus-widget-reversible-to-external (widget value)
777 "Ignoring WIDGET, convert VALUE to external form.
778VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
779\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
780 ;; (debug value)
781 (if (nth 1 value)
782 (list 'not (nth 0 value))
783 (nth 0 value)))
784
785(define-widget 'gnus-widget-reversible 'group
786 "A `group' that convert values."
787 :match 'gnus-widget-reversible-match
788 :value-to-internal 'gnus-widget-reversible-to-internal
789 :value-to-external 'gnus-widget-reversible-to-external)
790
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791(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
792 "*List of functions used for sorting articles in the summary buffer.
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793
794Each function takes two articles and returns non-nil if the first
795article should be sorted before the other. If you use more than one
796function, the primary sort function should be the last. You should
797probably always include `gnus-article-sort-by-number' in the list of
798sorting functions -- preferably first. Also note that sorting by date
799is often much slower than sorting by number, and the sorting order is
800very similar. (Sorting by date means sorting by the time the message
801was sent, sorting by number means sorting by arrival time.)
802
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803Each item can also be a list `(not F)' where F is a function;
804this reverses the sort order.
805
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806Ready-made functions include `gnus-article-sort-by-number',
807`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
808`gnus-article-sort-by-date', `gnus-article-sort-by-random'
809and `gnus-article-sort-by-score'.
810
811When threading is turned on, the variable `gnus-thread-sort-functions'
812controls how articles are sorted."
eec82323 813 :group 'gnus-summary-sort
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814 :type '(repeat (gnus-widget-reversible
815 (choice (function-item gnus-article-sort-by-number)
816 (function-item gnus-article-sort-by-author)
817 (function-item gnus-article-sort-by-subject)
818 (function-item gnus-article-sort-by-date)
819 (function-item gnus-article-sort-by-score)
820 (function-item gnus-article-sort-by-random)
821 (function :tag "other"))
822 (boolean :tag "Reverse order"))))
823
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824
825(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
826 "*List of functions used for sorting threads in the summary buffer.
827By default, threads are sorted by article number.
828
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829Each function takes two threads and returns non-nil if the first
830thread should be sorted before the other. If you use more than one
831function, the primary sort function should be the last. You should
832probably always include `gnus-thread-sort-by-number' in the list of
833sorting functions -- preferably first. Also note that sorting by date
834is often much slower than sorting by number, and the sorting order is
835very similar. (Sorting by date means sorting by the time the message
836was sent, sorting by number means sorting by arrival time.)
eec82323 837
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838Each list item can also be a list `(not F)' where F is a
839function; this specifies reversed sort order.
840
eec82323 841Ready-made functions include `gnus-thread-sort-by-number',
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842`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
843`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
844`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
845`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
846and `gnus-thread-sort-by-total-score' (see
847`gnus-thread-score-function').
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848
849When threading is turned off, the variable
850`gnus-article-sort-functions' controls how articles are sorted."
eec82323 851 :group 'gnus-summary-sort
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852 :type '(repeat
853 (gnus-widget-reversible
854 (choice (function-item gnus-thread-sort-by-number)
855 (function-item gnus-thread-sort-by-author)
856 (function-item gnus-thread-sort-by-recipient)
857 (function-item gnus-thread-sort-by-subject)
858 (function-item gnus-thread-sort-by-date)
859 (function-item gnus-thread-sort-by-score)
860 (function-item gnus-thread-sort-by-most-recent-number)
861 (function-item gnus-thread-sort-by-most-recent-date)
862 (function-item gnus-thread-sort-by-random)
863 (function-item gnus-thread-sort-by-total-score)
864 (function :tag "other"))
865 (boolean :tag "Reverse order"))))
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866
867(defcustom gnus-thread-score-function '+
868 "*Function used for calculating the total score of a thread.
869
870The function is called with the scores of the article and each
871subthread and should then return the score of the thread.
872
873Some functions you can use are `+', `max', or `min'."
874 :group 'gnus-summary-sort
875 :type 'function)
876
877(defcustom gnus-summary-expunge-below nil
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878 "All articles that have a score less than this variable will be expunged.
879This variable is local to the summary buffers."
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880 :group 'gnus-score-default
881 :type '(choice (const :tag "off" nil)
882 integer))
883
884(defcustom gnus-thread-expunge-below nil
885 "All threads that have a total score less than this variable will be expunged.
886See `gnus-thread-score-function' for en explanation of what a
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887\"thread score\" is.
888
889This variable is local to the summary buffers."
16409b0b 890 :group 'gnus-threading
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891 :group 'gnus-score-default
892 :type '(choice (const :tag "off" nil)
893 integer))
894
895(defcustom gnus-summary-mode-hook nil
896 "*A hook for Gnus summary mode.
897This hook is run before any variables are set in the summary buffer."
23f87bed 898 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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899 :group 'gnus-summary-various
900 :type 'hook)
901
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902;; Extracted from gnus-xmas-redefine in order to preserve user settings
903(when (featurep 'xemacs)
904 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
905 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
906 (add-hook 'gnus-summary-mode-hook
907 'gnus-xmas-switch-horizontal-scrollbar-off))
908
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909(defcustom gnus-summary-menu-hook nil
910 "*Hook run after the creation of the summary mode menu."
911 :group 'gnus-summary-visual
912 :type 'hook)
913
914(defcustom gnus-summary-exit-hook nil
915 "*A hook called on exit from the summary buffer.
916It will be called with point in the group buffer."
917 :group 'gnus-summary-exit
918 :type 'hook)
919
920(defcustom gnus-summary-prepare-hook nil
921 "*A hook called after the summary buffer has been generated.
922If you want to modify the summary buffer, you can use this hook."
923 :group 'gnus-summary-various
924 :type 'hook)
925
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926(defcustom gnus-summary-prepared-hook nil
927 "*A hook called as the last thing after the summary buffer has been generated."
928 :group 'gnus-summary-various
929 :type 'hook)
930
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931(defcustom gnus-summary-generate-hook nil
932 "*A hook run just before generating the summary buffer.
933This hook is commonly used to customize threading variables and the
934like."
935 :group 'gnus-summary-various
936 :type 'hook)
937
938(defcustom gnus-select-group-hook nil
939 "*A hook called when a newsgroup is selected.
940
941If you'd like to simplify subjects like the
942`gnus-summary-next-same-subject' command does, you can use the
943following hook:
944
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945 (add-hook gnus-select-group-hook
946 (lambda ()
947 (mapcar (lambda (header)
948 (mail-header-set-subject
949 header
950 (gnus-simplify-subject
951 (mail-header-subject header) 're-only)))
952 gnus-newsgroup-headers)))"
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953 :group 'gnus-group-select
954 :type 'hook)
955
956(defcustom gnus-select-article-hook nil
957 "*A hook called when an article is selected."
958 :group 'gnus-summary-choose
23f87bed 959 :options '(gnus-agent-fetch-selected-article)
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960 :type 'hook)
961
962(defcustom gnus-visual-mark-article-hook
963 (list 'gnus-highlight-selected-summary)
964 "*Hook run after selecting an article in the summary buffer.
965It is meant to be used for highlighting the article in some way. It
966is not run if `gnus-visual' is nil."
967 :group 'gnus-summary-visual
968 :type 'hook)
969
16409b0b 970(defcustom gnus-parse-headers-hook nil
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971 "*A hook called before parsing the headers."
972 :group 'gnus-various
973 :type 'hook)
974
975(defcustom gnus-exit-group-hook nil
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976 "*A hook called when exiting summary mode.
977This hook is not called from the non-updating exit commands like `Q'."
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978 :group 'gnus-various
979 :type 'hook)
980
981(defcustom gnus-summary-update-hook
982 (list 'gnus-summary-highlight-line)
983 "*A hook called when a summary line is changed.
984The hook will not be called if `gnus-visual' is nil.
985
986The default function `gnus-summary-highlight-line' will
987highlight the line according to the `gnus-summary-highlight'
988variable."
989 :group 'gnus-summary-visual
990 :type 'hook)
991
992(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
993 "*A hook called when an article is selected for the first time.
994The hook is intended to mark an article as read (or unread)
995automatically when it is selected."
996 :group 'gnus-summary-choose
997 :type 'hook)
998
999(defcustom gnus-group-no-more-groups-hook nil
1000 "*A hook run when returning to group mode having no more (unread) groups."
1001 :group 'gnus-group-select
1002 :type 'hook)
1003
1004(defcustom gnus-ps-print-hook nil
1005 "*A hook run before ps-printing something from Gnus."
1006 :group 'gnus-summary
1007 :type 'hook)
1008
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1009(defcustom gnus-summary-article-move-hook nil
1010 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1011 :version "22.1"
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1012 :group 'gnus-summary
1013 :type 'hook)
1014
1015(defcustom gnus-summary-article-delete-hook nil
1016 "*A hook called after an article is deleted."
bf247b6e 1017 :version "22.1"
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1018 :group 'gnus-summary
1019 :type 'hook)
1020
1021(defcustom gnus-summary-article-expire-hook nil
1022 "*A hook called after an article is expired."
bf247b6e 1023 :version "22.1"
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1024 :group 'gnus-summary
1025 :type 'hook)
1026
1027(defcustom gnus-summary-display-arrow
1028 (and (fboundp 'display-graphic-p)
1029 (display-graphic-p))
1030 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1031 :version "22.1"
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1032 :group 'gnus-summary
1033 :type 'boolean)
1034
0f49874b 1035(defcustom gnus-summary-selected-face 'gnus-summary-selected
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1036 "Face used for highlighting the current article in the summary buffer."
1037 :group 'gnus-summary-visual
1038 :type 'face)
1039
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1040(defvar gnus-tmp-downloaded nil)
1041
eec82323 1042(defcustom gnus-summary-highlight
23f87bed 1043 '(((eq mark gnus-canceled-mark)
0f49874b 1044 . gnus-summary-cancelled)
23f87bed 1045 ((and uncached (> score default-high))
0f49874b 1046 . gnus-summary-high-undownloaded)
23f87bed 1047 ((and uncached (< score default-low))
0f49874b 1048 . gnus-summary-low-undownloaded)
23f87bed 1049 (uncached
0f49874b 1050 . gnus-summary-normal-undownloaded)
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1051 ((and (> score default-high)
1052 (or (eq mark gnus-dormant-mark)
1053 (eq mark gnus-ticked-mark)))
0f49874b 1054 . gnus-summary-high-ticked)
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1055 ((and (< score default-low)
1056 (or (eq mark gnus-dormant-mark)
1057 (eq mark gnus-ticked-mark)))
0f49874b 1058 . gnus-summary-low-ticked)
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1059 ((or (eq mark gnus-dormant-mark)
1060 (eq mark gnus-ticked-mark))
0f49874b 1061 . gnus-summary-normal-ticked)
23f87bed 1062 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1063 . gnus-summary-high-ancient)
23f87bed 1064 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1065 . gnus-summary-low-ancient)
23f87bed 1066 ((eq mark gnus-ancient-mark)
0f49874b 1067 . gnus-summary-normal-ancient)
23f87bed 1068 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1069 . gnus-summary-high-unread)
23f87bed 1070 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1071 . gnus-summary-low-unread)
23f87bed 1072 ((eq mark gnus-unread-mark)
0f49874b 1073 . gnus-summary-normal-unread)
23f87bed 1074 ((> score default-high)
0f49874b 1075 . gnus-summary-high-read)
23f87bed 1076 ((< score default-low)
0f49874b 1077 . gnus-summary-low-read)
eec82323 1078 (t
0f49874b 1079 . gnus-summary-normal-read))
6748645f 1080 "*Controls the highlighting of summary buffer lines.
eec82323 1081
107cf8ec 1082A list of (FORM . FACE) pairs. When deciding how a particular
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1083summary line should be displayed, each form is evaluated. The content
1084of the face field after the first true form is used. You can change
1085how those summary lines are displayed, by editing the face field.
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1086
1087You can use the following variables in the FORM field.
1088
107cf8ec 1089score: The article's score.
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1090default: The default article score.
1091default-high: The default score for high scored articles.
1092default-low: The default score for low scored articles.
1093below: The score below which articles are automatically marked as read.
1094mark: The article's mark.
1095uncached: Non-nil if the article is uncached."
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1096 :group 'gnus-summary-visual
1097 :type '(repeat (cons (sexp :tag "Form" nil)
1098 face)))
c12ecb0a 1099(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1100
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1101(defcustom gnus-alter-header-function nil
1102 "Function called to allow alteration of article header structures.
1103The function is called with one parameter, the article header vector,
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1104which it may alter in any way."
1105 :type '(choice (const :tag "None" nil)
1106 function)
1107 :group 'gnus-summary)
eec82323 1108
16409b0b 1109(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
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1110 "Function used to decode a string with encoded words.")
1111
1112(defvar gnus-decode-encoded-address-function
1113 'mail-decode-encoded-address-string
1114 "Function used to decode addresses with encoded words.")
16409b0b 1115
23f87bed 1116(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1117 "*Extra headers to parse."
58e39d05 1118 :version "21.1"
16409b0b
GM
1119 :group 'gnus-summary
1120 :type '(repeat symbol))
1121
1122(defcustom gnus-ignored-from-addresses
343d6628 1123 (and user-mail-address
7cd9f860
CY
1124 (not (string= user-mail-address ""))
1125 (regexp-quote user-mail-address))
01c52d31
MB
1126 "*From headers that may be suppressed in favor of To headers.
1127This can be a regexp or a list of regexps."
58e39d05 1128 :version "21.1"
16409b0b 1129 :group 'gnus-summary
01c52d31
MB
1130 :type '(choice regexp
1131 (repeat :tag "Regexp List" regexp)))
1132
1133(defsubst gnus-ignored-from-addresses ()
1134 (gmm-regexp-concat gnus-ignored-from-addresses))
1135
1136(defcustom gnus-summary-to-prefix "-> "
1137 "*String prefixed to the To field in the summary line when
1138using `gnus-ignored-from-addresses'."
1139 :version "22.1"
1140 :group 'gnus-summary
1141 :type 'string)
1142
1143(defcustom gnus-summary-newsgroup-prefix "=> "
1144 "*String prefixed to the Newsgroup field in the summary
1145line when using `gnus-ignored-from-addresses'."
1146 :version "22.1"
1147 :group 'gnus-summary
1148 :type 'string)
16409b0b 1149
16409b0b
GM
1150(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1151 "List of charsets that should be ignored.
1152When these charsets are used in the \"charset\" parameter, the
1153default charset will be used instead."
58e39d05 1154 :version "21.1"
16409b0b
GM
1155 :type '(repeat symbol)
1156 :group 'gnus-charset)
1157
4b70e299
MB
1158(defcustom gnus-newsgroup-maximum-articles nil
1159 "The maximum number of articles a newsgroup.
1160If this is a number, old articles in a newsgroup exceeding this number
1161are silently ignored. If it is nil, no article is ignored. Note that
1162setting this variable to a number might prevent you from reading very
1163old articles."
1164 :group 'gnus-group-select
1165 :version "22.2"
1166 :type '(choice (const :tag "No limit" nil)
1167 integer))
1168
23f87bed
MB
1169(gnus-define-group-parameter
1170 ignored-charsets
1171 :type list
1172 :function-document
1173 "Return the ignored charsets of GROUP."
1174 :variable gnus-group-ignored-charsets-alist
1175 :variable-default
1176 '(("alt\\.chinese\\.text" iso-8859-1))
1177 :variable-document
1178 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1179When these charsets are used in the \"charset\" parameter, the
1180default charset will be used instead."
23f87bed
MB
1181 :variable-group gnus-charset
1182 :variable-type '(repeat (cons (regexp :tag "Group")
1183 (repeat symbol)))
1184 :parameter-type '(choice :tag "Ignored charsets"
1185 :value nil
1186 (repeat (symbol)))
1187 :parameter-document "\
1188List of charsets that should be ignored.
1189
1190When these charsets are used in the \"charset\" parameter, the
1191default charset will be used instead.")
16409b0b
GM
1192
1193(defcustom gnus-group-highlight-words-alist nil
1194 "Alist of group regexps and highlight regexps.
1195This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1196 :version "21.1"
16409b0b
GM
1197 :type '(repeat (cons (regexp :tag "Group")
1198 (repeat (list (regexp :tag "Highlight regexp")
1199 (number :tag "Group for entire word" 0)
1200 (number :tag "Group for displayed part" 0)
1201 (symbol :tag "Face"
1202 gnus-emphasis-highlight-words)))))
1203 :group 'gnus-summary-visual)
1204
1205(defcustom gnus-summary-show-article-charset-alist
1206 nil
1207 "Alist of number and charset.
1208The article will be shown with the charset corresponding to the
1209numbered argument.
1210For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1211 :version "21.1"
16409b0b
GM
1212 :type '(repeat (cons (number :tag "Argument" 1)
1213 (symbol :tag "Charset")))
1214 :group 'gnus-charset)
1215
1216(defcustom gnus-preserve-marks t
1217 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1218 :version "21.1"
16409b0b
GM
1219 :type 'boolean
1220 :group 'gnus-summary-marks)
1221
3a23a519
MB
1222(defcustom gnus-propagate-marks t
1223 "If non-nil, do not propagate marks to the backends."
f8a29505 1224 :version "23.1" ;; No Gnus
3a23a519
MB
1225 :type 'boolean
1226 :group 'gnus-summary-marks)
1227
16409b0b
GM
1228(defcustom gnus-alter-articles-to-read-function nil
1229 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1230 :type '(choice (const nil) function)
16409b0b
GM
1231 :group 'gnus-summary)
1232
1233(defcustom gnus-orphan-score nil
1234 "*All orphans get this score added. Set in the score file."
1235 :group 'gnus-score-default
1236 :type '(choice (const nil)
1237 integer))
1238
8b93df01 1239(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1240 "*A regexp to match MIME parts when saving multiple parts of a
1241message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1242This regexp will be used by default when prompting the user for which
1243type of files to save."
8b93df01
DL
1244 :group 'gnus-summary
1245 :type 'regexp)
1246
23f87bed
MB
1247(defcustom gnus-read-all-available-headers nil
1248 "Whether Gnus should parse all headers made available to it.
1249This is mostly relevant for slow back ends where the user may
1250wish to widen the summary buffer to include all headers
1251that were fetched. Say, for nnultimate groups."
bf247b6e 1252 :version "22.1"
23f87bed
MB
1253 :group 'gnus-summary
1254 :type '(choice boolean regexp))
1255
89167438
MB
1256(defcustom gnus-summary-pipe-output-default-command nil
1257 "Command (and optional arguments) used to pipe article to subprocess.
1258This will be used as the default command if it is non-nil. The value
1259will be updated if you modify it when executing the command
1260`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1261 :version "23.1" ;; No Gnus
1262 :group 'gnus-summary
1263 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1264
23f87bed 1265(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1266 "Command (and optional arguments) used to run Muttprint.
1267The value will be updated if you modify it when executing the command
1268`gnus-summary-muttprint'."
bf247b6e 1269 :version "22.1"
23f87bed
MB
1270 :group 'gnus-summary
1271 :type 'string)
1272
01c52d31 1273(defcustom gnus-article-loose-mime t
23f87bed
MB
1274 "If non-nil, don't require MIME-Version header.
1275Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1276supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1277If non-nil (the default), Gnus will treat some articles as MIME
1278even if the MIME-Version header is missing."
bf247b6e 1279 :version "22.1"
23f87bed
MB
1280 :type 'boolean
1281 :group 'gnus-article-mime)
1282
1283(defcustom gnus-article-emulate-mime t
1284 "If non-nil, use MIME emulation for uuencode and the like.
1285This means that Gnus will search message bodies for text that look
1286like uuencoded bits, yEncoded bits, and so on, and present that using
1287the normal Gnus MIME machinery."
bf247b6e 1288 :version "22.1"
23f87bed
MB
1289 :type 'boolean
1290 :group 'gnus-article-mime)
8b93df01 1291
eec82323
LMI
1292;;; Internal variables
1293
23f87bed 1294(defvar gnus-summary-display-cache nil)
16409b0b
GM
1295(defvar gnus-article-mime-handles nil)
1296(defvar gnus-article-decoded-p nil)
23f87bed
MB
1297(defvar gnus-article-charset nil)
1298(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1299(defvar gnus-scores-exclude-files nil)
1300(defvar gnus-page-broken nil)
1301
1302(defvar gnus-original-article nil)
1303(defvar gnus-article-internal-prepare-hook nil)
1304(defvar gnus-newsgroup-process-stack nil)
1305
1306(defvar gnus-thread-indent-array nil)
1307(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1308(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1309 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1310
8b93df01 1311(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1312(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1313
eec82323
LMI
1314;; Avoid highlighting in kill files.
1315(defvar gnus-summary-inhibit-highlight nil)
1316(defvar gnus-newsgroup-selected-overlay nil)
1317(defvar gnus-inhibit-limiting nil)
1318(defvar gnus-newsgroup-adaptive-score-file nil)
1319(defvar gnus-current-score-file nil)
1320(defvar gnus-current-move-group nil)
1321(defvar gnus-current-copy-group nil)
1322(defvar gnus-current-crosspost-group nil)
23f87bed 1323(defvar gnus-newsgroup-display nil)
eec82323
LMI
1324
1325(defvar gnus-newsgroup-dependencies nil)
1326(defvar gnus-newsgroup-adaptive nil)
1327(defvar gnus-summary-display-article-function nil)
1328(defvar gnus-summary-highlight-line-function nil
1329 "Function called after highlighting a summary line.")
1330
1331(defvar gnus-summary-line-format-alist
1332 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1333 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1334 (?s gnus-tmp-subject-or-nil ?s)
1335 (?n gnus-tmp-name ?s)
1336 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1337 ?s)
1338 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1339 gnus-tmp-from) ?s)
1340 (?F gnus-tmp-from ?s)
1341 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1342 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1343 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1344 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1345 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1346 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1347 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1348 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1349 (?L gnus-tmp-lines ?s)
1350 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1351 (?I gnus-tmp-indentation ?s)
1352 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1353 (?R gnus-tmp-replied ?c)
1354 (?\[ gnus-tmp-opening-bracket ?c)
1355 (?\] gnus-tmp-closing-bracket ?c)
1356 (?\> (make-string gnus-tmp-level ? ) ?s)
1357 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1358 (?i gnus-tmp-score ?d)
1359 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1360 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1361 (?U gnus-tmp-unread ?c)
23f87bed
MB
1362 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1363 ?s)
eec82323
LMI
1364 (?t (gnus-summary-number-of-articles-in-thread
1365 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1366 ?d)
1367 (?e (gnus-summary-number-of-articles-in-thread
1368 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1369 ?c)
1370 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1371 (?P (gnus-pick-line-number) ?d)
1372 (?B gnus-tmp-thread-tree-header-string ?s)
1373 (user-date (gnus-user-date
1374 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1375 "An alist of format specifications that can appear in summary lines.
1376These are paired with what variables they correspond with, along with
1377the type of the variable (string, integer, character, etc).")
eec82323
LMI
1378
1379(defvar gnus-summary-dummy-line-format-alist
1380 `((?S gnus-tmp-subject ?s)
1381 (?N gnus-tmp-number ?d)
1382 (?u gnus-tmp-user-defined ?s)))
1383
1384(defvar gnus-summary-mode-line-format-alist
1385 `((?G gnus-tmp-group-name ?s)
1386 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1387 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1388 (?A gnus-tmp-article-number ?d)
1389 (?Z gnus-tmp-unread-and-unselected ?s)
1390 (?V gnus-version ?s)
1391 (?U gnus-tmp-unread-and-unticked ?d)
1392 (?S gnus-tmp-subject ?s)
1393 (?e gnus-tmp-unselected ?d)
1394 (?u gnus-tmp-user-defined ?s)
1395 (?d (length gnus-newsgroup-dormant) ?d)
1396 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1397 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1398 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1399 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1400 (?E gnus-newsgroup-expunged-tally ?d)
1401 (?s (gnus-current-score-file-nondirectory) ?s)))
1402
c1717fbd
GM
1403;; This is here rather than in gnus-art for compilation reasons.
1404(defvar gnus-article-mode-line-format-alist
1405 (nconc '((?w (gnus-article-wash-status) ?s)
1406 (?m (gnus-article-mime-part-status) ?s))
1407 gnus-summary-mode-line-format-alist))
1408
eec82323
LMI
1409(defvar gnus-last-search-regexp nil
1410 "Default regexp for article search command.")
1411
1412(defvar gnus-last-shell-command nil
1413 "Default shell command on article.")
1414
23f87bed
MB
1415(defvar gnus-newsgroup-agentized nil
1416 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1417(defvar gnus-newsgroup-begin nil)
1418(defvar gnus-newsgroup-end nil)
1419(defvar gnus-newsgroup-last-rmail nil)
1420(defvar gnus-newsgroup-last-mail nil)
1421(defvar gnus-newsgroup-last-folder nil)
1422(defvar gnus-newsgroup-last-file nil)
26c9afc3 1423(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1424(defvar gnus-newsgroup-auto-expire nil)
1425(defvar gnus-newsgroup-active nil)
1426
1427(defvar gnus-newsgroup-data nil)
1428(defvar gnus-newsgroup-data-reverse nil)
1429(defvar gnus-newsgroup-limit nil)
1430(defvar gnus-newsgroup-limits nil)
23f87bed 1431(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1432
1433(defvar gnus-newsgroup-unreads nil
23f87bed 1434 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1435
1436(defvar gnus-newsgroup-unselected nil
23f87bed 1437 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1438
1439(defvar gnus-newsgroup-reads nil
1440 "Alist of read articles and article marks in the current newsgroup.")
1441
1442(defvar gnus-newsgroup-expunged-tally nil)
1443
1444(defvar gnus-newsgroup-marked nil
23f87bed
MB
1445 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1446
1447(defvar gnus-newsgroup-spam-marked nil
1448 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1449
1450(defvar gnus-newsgroup-killed nil
1451 "List of ranges of articles that have been through the scoring process.")
1452
1453(defvar gnus-newsgroup-cached nil
23f87bed 1454 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1455
1456(defvar gnus-newsgroup-saved nil
1457 "List of articles that have been saved.")
1458
1459(defvar gnus-newsgroup-kill-headers nil)
1460
1461(defvar gnus-newsgroup-replied nil
1462 "List of articles that have been replied to in the current newsgroup.")
1463
23f87bed
MB
1464(defvar gnus-newsgroup-forwarded nil
1465 "List of articles that have been forwarded in the current newsgroup.")
1466
1467(defvar gnus-newsgroup-recent nil
1468 "List of articles that have are recent in the current newsgroup.")
1469
eec82323 1470(defvar gnus-newsgroup-expirable nil
23f87bed 1471 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1472
1473(defvar gnus-newsgroup-processable nil
1474 "List of articles in the current newsgroup that can be processed.")
1475
6748645f 1476(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1477 "Sorted list of articles in the current newsgroup that can be processed.")
1478
1479(defvar gnus-newsgroup-unfetched nil
1480 "Sorted list of articles in the current newsgroup whose headers have
1481not been fetched into the agent.
1482
1483This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1484
1485(defvar gnus-newsgroup-undownloaded nil
23f87bed 1486 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1487
1488(defvar gnus-newsgroup-unsendable nil
1489 "List of articles in the current newsgroup that won't be sent.")
1490
eec82323
LMI
1491(defvar gnus-newsgroup-bookmarks nil
1492 "List of articles in the current newsgroup that have bookmarks.")
1493
1494(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1495 "Sorted list of dormant articles in the current newsgroup.")
1496
1497(defvar gnus-newsgroup-unseen nil
1498 "List of unseen articles in the current newsgroup.")
1499
1500(defvar gnus-newsgroup-seen nil
1501 "Range of seen articles in the current newsgroup.")
1502
1503(defvar gnus-newsgroup-articles nil
1504 "List of articles in the current newsgroup.")
eec82323
LMI
1505
1506(defvar gnus-newsgroup-scored nil
1507 "List of scored articles in the current newsgroup.")
1508
1509(defvar gnus-newsgroup-headers nil
1510 "List of article headers in the current newsgroup.")
1511
1512(defvar gnus-newsgroup-threads nil)
1513
1514(defvar gnus-newsgroup-prepared nil
1515 "Whether the current group has been prepared properly.")
1516
1517(defvar gnus-newsgroup-ancient nil
1518 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1519
1520(defvar gnus-newsgroup-sparse nil)
1521
1522(defvar gnus-current-article nil)
1523(defvar gnus-article-current nil)
1524(defvar gnus-current-headers nil)
1525(defvar gnus-have-all-headers nil)
1526(defvar gnus-last-article nil)
1527(defvar gnus-newsgroup-history nil)
16409b0b
GM
1528(defvar gnus-newsgroup-charset nil)
1529(defvar gnus-newsgroup-ephemeral-charset nil)
1530(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1531
23f87bed
MB
1532(defvar gnus-article-before-search nil)
1533
1534(defvar gnus-summary-local-variables
eec82323
LMI
1535 '(gnus-newsgroup-name
1536 gnus-newsgroup-begin gnus-newsgroup-end
1537 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1538 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1539 gnus-newsgroup-last-directory
eec82323
LMI
1540 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1541 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1542 gnus-newsgroup-spam-marked
eec82323 1543 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1544 gnus-newsgroup-replied gnus-newsgroup-forwarded
1545 gnus-newsgroup-recent
1546 gnus-newsgroup-expirable
eec82323 1547 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1548 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1549 gnus-newsgroup-unfetched
1550 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1551 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1552 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1553 gnus-newsgroup-headers gnus-newsgroup-threads
1554 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1555 gnus-current-article gnus-current-headers gnus-have-all-headers
1556 gnus-last-article gnus-article-internal-prepare-hook
1557 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1558 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1559 gnus-thread-expunge-below
16409b0b
GM
1560 gnus-score-alist gnus-current-score-file
1561 (gnus-summary-expunge-below . global)
eec82323 1562 (gnus-summary-mark-below . global)
16409b0b 1563 (gnus-orphan-score . global)
eec82323
LMI
1564 gnus-newsgroup-active gnus-scores-exclude-files
1565 gnus-newsgroup-history gnus-newsgroup-ancient
1566 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1567 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1568 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1569 (gnus-newsgroup-expunged-tally . 0)
1570 gnus-cache-removable-articles gnus-newsgroup-cached
1571 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1572 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1573 gnus-newsgroup-charset gnus-newsgroup-display
1574 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1575 "Variables that are buffer-local to the summary buffers.")
1576
23f87bed
MB
1577(defvar gnus-newsgroup-variables nil
1578 "A list of variables that have separate values in different newsgroups.
1579A list of newsgroup (summary buffer) local variables, or cons of
1580variables and their default expressions to be evalled (when the default
1581values are not nil), that should be made global while the summary buffer
1582is active.
1583
1584Note: The default expressions will be evaluated (using function `eval')
1585before assignment to the local variable rather than just assigned to it.
1586If the default expression is the symbol `global', that symbol will not
1587be evaluated but the global value of the local variable will be used
1588instead.
1589
1590These variables can be used to set variables in the group parameters
1591while still allowing them to affect operations done in other buffers.
1592For example:
1593
1594\(setq gnus-newsgroup-variables
1595 '(message-use-followup-to
1596 (gnus-visible-headers .
1597 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1598")
1599
23f87bed
MB
1600(eval-when-compile
1601 ;; Bind features so that require will believe that gnus-sum has
1602 ;; already been loaded (avoids infinite recursion)
1603 (let ((features (cons 'gnus-sum features)))
23f87bed 1604 (require 'gnus-art)))
eec82323 1605
16409b0b
GM
1606;; MIME stuff.
1607
1608(defvar gnus-decode-encoded-word-methods
1609 '(mail-decode-encoded-word-string)
1610 "List of methods used to decode encoded words.
1611
23f87bed
MB
1612This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1613is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1614\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1615whose names match REGEXP.
1616
1617For example:
23f87bed 1618\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1619 mail-decode-encoded-word-string
1620 (\"chinese\" . rfc1843-decode-string))")
1621
1622(defvar gnus-decode-encoded-word-methods-cache nil)
1623
1624(defun gnus-multi-decode-encoded-word-string (string)
1625 "Apply the functions from `gnus-encoded-word-methods' that match."
1626 (unless (and gnus-decode-encoded-word-methods-cache
1627 (eq gnus-newsgroup-name
1628 (car gnus-decode-encoded-word-methods-cache)))
1629 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1630 (dolist (method gnus-decode-encoded-word-methods)
1631 (if (symbolp method)
1632 (nconc gnus-decode-encoded-word-methods-cache (list method))
1633 (if (and gnus-newsgroup-name
1634 (string-match (car method) gnus-newsgroup-name))
1635 (nconc gnus-decode-encoded-word-methods-cache
1636 (list (cdr method)))))))
1637 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1638 (setq string (funcall method string))))
16409b0b 1639
eec82323
LMI
1640;; Subject simplification.
1641
6748645f 1642(defun gnus-simplify-whitespace (str)
16409b0b 1643 "Remove excessive whitespace from STR."
23f87bed
MB
1644 ;; Multiple spaces.
1645 (while (string-match "[ \t][ \t]+" str)
1646 (setq str (concat (substring str 0 (match-beginning 0))
1647 " "
1648 (substring str (match-end 0)))))
1649 ;; Leading spaces.
1650 (when (string-match "^[ \t]+" str)
1651 (setq str (substring str (match-end 0))))
1652 ;; Trailing spaces.
1653 (when (string-match "[ \t]+$" str)
1654 (setq str (substring str 0 (match-beginning 0))))
1655 str)
1656
1657(defun gnus-simplify-all-whitespace (str)
1658 "Remove all whitespace from STR."
1659 (while (string-match "[ \t\n]+" str)
1660 (setq str (replace-match "" nil nil str)))
1661 str)
6748645f 1662
eec82323
LMI
1663(defsubst gnus-simplify-subject-re (subject)
1664 "Remove \"Re:\" from subject lines."
23f87bed 1665 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1666 (substring subject (match-end 0))
1667 subject))
1668
1669(defun gnus-simplify-subject (subject &optional re-only)
1670 "Remove `Re:' and words in parentheses.
1671If RE-ONLY is non-nil, strip leading `Re:'s only."
1672 (let ((case-fold-search t)) ;Ignore case.
1673 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1674 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1675 (setq subject (substring subject (match-end 0))))
1676 ;; Remove uninteresting prefixes.
1677 (when (and (not re-only)
1678 gnus-simplify-ignored-prefixes
1679 (string-match gnus-simplify-ignored-prefixes subject))
1680 (setq subject (substring subject (match-end 0))))
1681 ;; Remove words in parentheses from end.
1682 (unless re-only
1683 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1684 (setq subject (substring subject 0 (match-beginning 0)))))
1685 ;; Return subject string.
1686 subject))
1687
1688;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1689;; all whitespace.
1690(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1691 (goto-char (point-min))
1692 (while (re-search-forward regexp nil t)
16409b0b 1693 (replace-match (or newtext ""))))
eec82323
LMI
1694
1695(defun gnus-simplify-buffer-fuzzy ()
1696 "Simplify string in the buffer fuzzily.
1697The string in the accessible portion of the current buffer is simplified.
1698It is assumed to be a single-line subject.
1699Whitespace is generally cleaned up, and miscellaneous leading/trailing
1700matter is removed. Additional things can be deleted by setting
16409b0b 1701`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1702 (let ((case-fold-search t)
1703 (modified-tick))
1704 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1705
1706 (while (not (eq modified-tick (buffer-modified-tick)))
1707 (setq modified-tick (buffer-modified-tick))
1708 (cond
1709 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
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1710 (mapc 'gnus-simplify-buffer-fuzzy-step
1711 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1712 (gnus-simplify-subject-fuzzy-regexp
1713 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1714 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1715 (gnus-simplify-buffer-fuzzy-step
1716 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1717 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1718
1719 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1720 (gnus-simplify-buffer-fuzzy-step " +" " ")
1721 (gnus-simplify-buffer-fuzzy-step " $")
1722 (gnus-simplify-buffer-fuzzy-step "^ +")))
1723
1724(defun gnus-simplify-subject-fuzzy (subject)
1725 "Simplify a subject string fuzzily.
6748645f 1726See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1727 (save-excursion
1728 (gnus-set-work-buffer)
1729 (let ((case-fold-search t))
6748645f
LMI
1730 ;; Remove uninteresting prefixes.
1731 (when (and gnus-simplify-ignored-prefixes
1732 (string-match gnus-simplify-ignored-prefixes subject))
1733 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1734 (insert subject)
1735 (inline (gnus-simplify-buffer-fuzzy))
1736 (buffer-string))))
1737
1738(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1739 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1740 (cond
6748645f
LMI
1741 (gnus-simplify-subject-functions
1742 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1743 ((null gnus-summary-gather-subject-limit)
1744 (gnus-simplify-subject-re subject))
1745 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1746 (gnus-simplify-subject-fuzzy subject))
1747 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1748 (truncate-string-to-width (gnus-simplify-subject-re subject)
1749 gnus-summary-gather-subject-limit))
eec82323
LMI
1750 (t
1751 subject)))
1752
1753(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1754 "Check whether two subjects are equal.
23f87bed 1755If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1756simplified."
eec82323
LMI
1757 (cond
1758 ((null simple-first)
1759 (equal (gnus-simplify-subject-fully s1)
1760 (gnus-simplify-subject-fully s2)))
1761 (t
1762 (equal s1
1763 (gnus-simplify-subject-fully s2)))))
1764
1765(defun gnus-summary-bubble-group ()
1766 "Increase the score of the current group.
1767This is a handy function to add to `gnus-summary-exit-hook' to
1768increase the score of each group you read."
1769 (gnus-group-add-score gnus-newsgroup-name))
1770
1771\f
1772;;;
1773;;; Gnus summary mode
1774;;;
1775
1776(put 'gnus-summary-mode 'mode-class 'special)
1777
1653df0f
SZ
1778(defvar gnus-article-commands-menu)
1779
23f87bed
MB
1780;; Non-orthogonal keys
1781
1782(gnus-define-keys gnus-summary-mode-map
1783 " " gnus-summary-next-page
1784 "\177" gnus-summary-prev-page
1785 [delete] gnus-summary-prev-page
1786 [backspace] gnus-summary-prev-page
1787 "\r" gnus-summary-scroll-up
1788 "\M-\r" gnus-summary-scroll-down
1789 "n" gnus-summary-next-unread-article
1790 "p" gnus-summary-prev-unread-article
1791 "N" gnus-summary-next-article
1792 "P" gnus-summary-prev-article
1793 "\M-\C-n" gnus-summary-next-same-subject
1794 "\M-\C-p" gnus-summary-prev-same-subject
1795 "\M-n" gnus-summary-next-unread-subject
1796 "\M-p" gnus-summary-prev-unread-subject
1797 "." gnus-summary-first-unread-article
1798 "," gnus-summary-best-unread-article
1799 "\M-s" gnus-summary-search-article-forward
1800 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1801 "\M-S" gnus-summary-repeat-search-article-forward
1802 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
MB
1803 "<" gnus-summary-beginning-of-article
1804 ">" gnus-summary-end-of-article
1805 "j" gnus-summary-goto-article
1806 "^" gnus-summary-refer-parent-article
1807 "\M-^" gnus-summary-refer-article
1808 "u" gnus-summary-tick-article-forward
1809 "!" gnus-summary-tick-article-forward
1810 "U" gnus-summary-tick-article-backward
1811 "d" gnus-summary-mark-as-read-forward
1812 "D" gnus-summary-mark-as-read-backward
1813 "E" gnus-summary-mark-as-expirable
1814 "\M-u" gnus-summary-clear-mark-forward
1815 "\M-U" gnus-summary-clear-mark-backward
1816 "k" gnus-summary-kill-same-subject-and-select
1817 "\C-k" gnus-summary-kill-same-subject
1818 "\M-\C-k" gnus-summary-kill-thread
1819 "\M-\C-l" gnus-summary-lower-thread
1820 "e" gnus-summary-edit-article
1821 "#" gnus-summary-mark-as-processable
1822 "\M-#" gnus-summary-unmark-as-processable
1823 "\M-\C-t" gnus-summary-toggle-threads
1824 "\M-\C-s" gnus-summary-show-thread
1825 "\M-\C-h" gnus-summary-hide-thread
1826 "\M-\C-f" gnus-summary-next-thread
1827 "\M-\C-b" gnus-summary-prev-thread
1828 [(meta down)] gnus-summary-next-thread
1829 [(meta up)] gnus-summary-prev-thread
1830 "\M-\C-u" gnus-summary-up-thread
1831 "\M-\C-d" gnus-summary-down-thread
1832 "&" gnus-summary-execute-command
1833 "c" gnus-summary-catchup-and-exit
1834 "\C-w" gnus-summary-mark-region-as-read
1835 "\C-t" gnus-summary-toggle-truncation
1836 "?" gnus-summary-mark-as-dormant
1837 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1838 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1839 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1840 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1841 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1842 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1843 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1844 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1845 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1846 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1847 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1848 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1849 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1850 "=" gnus-summary-expand-window
1851 "\C-x\C-s" gnus-summary-reselect-current-group
1852 "\M-g" gnus-summary-rescan-group
1853 "w" gnus-summary-stop-page-breaking
1854 "\C-c\C-r" gnus-summary-caesar-message
1855 "f" gnus-summary-followup
1856 "F" gnus-summary-followup-with-original
1857 "C" gnus-summary-cancel-article
1858 "r" gnus-summary-reply
1859 "R" gnus-summary-reply-with-original
1860 "\C-c\C-f" gnus-summary-mail-forward
1861 "o" gnus-summary-save-article
1862 "\C-o" gnus-summary-save-article-mail
1863 "|" gnus-summary-pipe-output
1864 "\M-k" gnus-summary-edit-local-kill
1865 "\M-K" gnus-summary-edit-global-kill
1866 ;; "V" gnus-version
1867 "\C-c\C-d" gnus-summary-describe-group
1868 "q" gnus-summary-exit
1869 "Q" gnus-summary-exit-no-update
1870 "\C-c\C-i" gnus-info-find-node
1871 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1872 [follow-link] mouse-face
23f87bed
MB
1873 "m" gnus-summary-mail-other-window
1874 "a" gnus-summary-post-news
1875 "i" gnus-summary-news-other-window
1876 "x" gnus-summary-limit-to-unread
1877 "s" gnus-summary-isearch-article
1878 "t" gnus-summary-toggle-header
1879 "g" gnus-summary-show-article
1880 "l" gnus-summary-goto-last-article
1881 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1882 "\C-d" gnus-summary-enter-digest-group
1883 "\M-\C-d" gnus-summary-read-document
1884 "\M-\C-e" gnus-summary-edit-parameters
1885 "\M-\C-a" gnus-summary-customize-parameters
1886 "\C-c\C-b" gnus-bug
1887 "*" gnus-cache-enter-article
1888 "\M-*" gnus-cache-remove-article
1889 "\M-&" gnus-summary-universal-argument
1890 "\C-l" gnus-recenter
1891 "I" gnus-summary-increase-score
1892 "L" gnus-summary-lower-score
1893 "\M-i" gnus-symbolic-argument
1894 "h" gnus-summary-select-article-buffer
1895
1896 "b" gnus-article-view-part
1897 "\M-t" gnus-summary-toggle-display-buttonized
1898
1899 "V" gnus-summary-score-map
1900 "X" gnus-uu-extract-map
1901 "S" gnus-summary-send-map)
1902
1903;; Sort of orthogonal keymap
1904(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1905 "t" gnus-summary-tick-article-forward
1906 "!" gnus-summary-tick-article-forward
1907 "d" gnus-summary-mark-as-read-forward
1908 "r" gnus-summary-mark-as-read-forward
1909 "c" gnus-summary-clear-mark-forward
1910 " " gnus-summary-clear-mark-forward
1911 "e" gnus-summary-mark-as-expirable
1912 "x" gnus-summary-mark-as-expirable
1913 "?" gnus-summary-mark-as-dormant
1914 "b" gnus-summary-set-bookmark
1915 "B" gnus-summary-remove-bookmark
1916 "#" gnus-summary-mark-as-processable
1917 "\M-#" gnus-summary-unmark-as-processable
1918 "S" gnus-summary-limit-include-expunged
1919 "C" gnus-summary-catchup
1920 "H" gnus-summary-catchup-to-here
1921 "h" gnus-summary-catchup-from-here
1922 "\C-c" gnus-summary-catchup-all
1923 "k" gnus-summary-kill-same-subject-and-select
1924 "K" gnus-summary-kill-same-subject
1925 "P" gnus-uu-mark-map)
1926
1927(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1928 "c" gnus-summary-clear-above
1929 "u" gnus-summary-tick-above
1930 "m" gnus-summary-mark-above
1931 "k" gnus-summary-kill-below)
1932
1933(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1934 "/" gnus-summary-limit-to-subject
1935 "n" gnus-summary-limit-to-articles
01c52d31
MB
1936 "b" gnus-summary-limit-to-bodies
1937 "h" gnus-summary-limit-to-headers
23f87bed
MB
1938 "w" gnus-summary-pop-limit
1939 "s" gnus-summary-limit-to-subject
1940 "a" gnus-summary-limit-to-author
1941 "u" gnus-summary-limit-to-unread
1942 "m" gnus-summary-limit-to-marks
1943 "M" gnus-summary-limit-exclude-marks
1944 "v" gnus-summary-limit-to-score
1945 "*" gnus-summary-limit-include-cached
1946 "D" gnus-summary-limit-include-dormant
1947 "T" gnus-summary-limit-include-thread
1948 "d" gnus-summary-limit-exclude-dormant
1949 "t" gnus-summary-limit-to-age
1950 "." gnus-summary-limit-to-unseen
1951 "x" gnus-summary-limit-to-extra
1952 "p" gnus-summary-limit-to-display-predicate
1953 "E" gnus-summary-limit-include-expunged
1954 "c" gnus-summary-limit-exclude-childless-dormant
1955 "C" gnus-summary-limit-mark-excluded-as-read
1956 "o" gnus-summary-insert-old-articles
01c52d31
MB
1957 "N" gnus-summary-insert-new-articles
1958 "S" gnus-summary-limit-to-singletons
1959 "r" gnus-summary-limit-to-replied
1960 "R" gnus-summary-limit-to-recipient
1961 "A" gnus-summary-limit-to-address)
23f87bed
MB
1962
1963(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1964 "n" gnus-summary-next-unread-article
1965 "p" gnus-summary-prev-unread-article
1966 "N" gnus-summary-next-article
1967 "P" gnus-summary-prev-article
1968 "\C-n" gnus-summary-next-same-subject
1969 "\C-p" gnus-summary-prev-same-subject
1970 "\M-n" gnus-summary-next-unread-subject
1971 "\M-p" gnus-summary-prev-unread-subject
1972 "f" gnus-summary-first-unread-article
1973 "b" gnus-summary-best-unread-article
1974 "j" gnus-summary-goto-article
1975 "g" gnus-summary-goto-subject
1976 "l" gnus-summary-goto-last-article
1977 "o" gnus-summary-pop-article)
1978
1979(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1980 "k" gnus-summary-kill-thread
01c52d31 1981 "E" gnus-summary-expire-thread
23f87bed
MB
1982 "l" gnus-summary-lower-thread
1983 "i" gnus-summary-raise-thread
1984 "T" gnus-summary-toggle-threads
1985 "t" gnus-summary-rethread-current
1986 "^" gnus-summary-reparent-thread
01c52d31 1987 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1988 "s" gnus-summary-show-thread
1989 "S" gnus-summary-show-all-threads
1990 "h" gnus-summary-hide-thread
1991 "H" gnus-summary-hide-all-threads
1992 "n" gnus-summary-next-thread
1993 "p" gnus-summary-prev-thread
1994 "u" gnus-summary-up-thread
1995 "o" gnus-summary-top-thread
1996 "d" gnus-summary-down-thread
1997 "#" gnus-uu-mark-thread
1998 "\M-#" gnus-uu-unmark-thread)
1999
2000(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
2001 "g" gnus-summary-prepare
2002 "c" gnus-summary-insert-cached-articles
01c52d31
MB
2003 "d" gnus-summary-insert-dormant-articles
2004 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
2005
2006(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
2007 "c" gnus-summary-catchup-and-exit
2008 "C" gnus-summary-catchup-all-and-exit
2009 "E" gnus-summary-exit-no-update
2010 "Q" gnus-summary-exit
2011 "Z" gnus-summary-exit
2012 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2013 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2014 "R" gnus-summary-reselect-current-group
2015 "G" gnus-summary-rescan-group
2016 "N" gnus-summary-next-group
2017 "s" gnus-summary-save-newsrc
2018 "P" gnus-summary-prev-group)
2019
2020(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2021 " " gnus-summary-next-page
2022 "n" gnus-summary-next-page
2023 "\177" gnus-summary-prev-page
2024 [delete] gnus-summary-prev-page
2025 "p" gnus-summary-prev-page
2026 "\r" gnus-summary-scroll-up
2027 "\M-\r" gnus-summary-scroll-down
2028 "<" gnus-summary-beginning-of-article
2029 ">" gnus-summary-end-of-article
2030 "b" gnus-summary-beginning-of-article
2031 "e" gnus-summary-end-of-article
2032 "^" gnus-summary-refer-parent-article
2033 "r" gnus-summary-refer-parent-article
2034 "D" gnus-summary-enter-digest-group
2035 "R" gnus-summary-refer-references
2036 "T" gnus-summary-refer-thread
2037 "g" gnus-summary-show-article
2038 "s" gnus-summary-isearch-article
2039 "P" gnus-summary-print-article
01c52d31 2040 "S" gnus-sticky-article
23f87bed
MB
2041 "M" gnus-mailing-list-insinuate
2042 "t" gnus-article-babel)
2043
2044(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2045 "b" gnus-article-add-buttons
2046 "B" gnus-article-add-buttons-to-head
2047 "o" gnus-article-treat-overstrike
2048 "e" gnus-article-emphasize
2049 "w" gnus-article-fill-cited-article
2050 "Q" gnus-article-fill-long-lines
01c52d31 2051 "L" gnus-article-toggle-truncate-lines
23f87bed
MB
2052 "C" gnus-article-capitalize-sentences
2053 "c" gnus-article-remove-cr
2054 "q" gnus-article-de-quoted-unreadable
2055 "6" gnus-article-de-base64-unreadable
2056 "Z" gnus-article-decode-HZ
01c52d31 2057 "A" gnus-article-treat-ansi-sequences
23f87bed
MB
2058 "h" gnus-article-wash-html
2059 "u" gnus-article-unsplit-urls
2060 "s" gnus-summary-force-verify-and-decrypt
2061 "f" gnus-article-display-x-face
2062 "l" gnus-summary-stop-page-breaking
2063 "r" gnus-summary-caesar-message
2064 "m" gnus-summary-morse-message
2065 "t" gnus-summary-toggle-header
2066 "g" gnus-treat-smiley
2067 "v" gnus-summary-verbose-headers
2068 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2069 "p" gnus-article-verify-x-pgp-sig
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2070 "d" gnus-article-treat-dumbquotes
2071 "i" gnus-summary-idna-message)
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2072
2073(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2074 ;; mnemonic: deuglif*Y*
2075 "u" gnus-article-outlook-unwrap-lines
2076 "a" gnus-article-outlook-repair-attribution
2077 "c" gnus-article-outlook-rearrange-citation
2078 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2079
2080(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2081 "a" gnus-article-hide
2082 "h" gnus-article-hide-headers
2083 "b" gnus-article-hide-boring-headers
2084 "s" gnus-article-hide-signature
2085 "c" gnus-article-hide-citation
2086 "C" gnus-article-hide-citation-in-followups
2087 "l" gnus-article-hide-list-identifiers
2088 "B" gnus-article-strip-banner
2089 "P" gnus-article-hide-pem
2090 "\C-c" gnus-article-hide-citation-maybe)
2091
2092(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2093 "a" gnus-article-highlight
2094 "h" gnus-article-highlight-headers
2095 "c" gnus-article-highlight-citation
2096 "s" gnus-article-highlight-signature)
2097
2098(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2099 "f" gnus-article-treat-fold-headers
2100 "u" gnus-article-treat-unfold-headers
2101 "n" gnus-article-treat-fold-newsgroups)
2102
2103(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2104 "x" gnus-article-display-x-face
2105 "d" gnus-article-display-face
2106 "s" gnus-treat-smiley
2107 "D" gnus-article-remove-images
2108 "f" gnus-treat-from-picon
2109 "m" gnus-treat-mail-picon
2110 "n" gnus-treat-newsgroups-picon)
2111
2112(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2113 "w" gnus-article-decode-mime-words
2114 "c" gnus-article-decode-charset
2115 "v" gnus-mime-view-all-parts
2116 "b" gnus-article-view-part)
2117
2118(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2119 "z" gnus-article-date-ut
2120 "u" gnus-article-date-ut
2121 "l" gnus-article-date-local
2122 "p" gnus-article-date-english
2123 "e" gnus-article-date-lapsed
2124 "o" gnus-article-date-original
2125 "i" gnus-article-date-iso8601
2126 "s" gnus-article-date-user)
2127
2128(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2129 "t" gnus-article-remove-trailing-blank-lines
2130 "l" gnus-article-strip-leading-blank-lines
2131 "m" gnus-article-strip-multiple-blank-lines
2132 "a" gnus-article-strip-blank-lines
2133 "A" gnus-article-strip-all-blank-lines
2134 "s" gnus-article-strip-leading-space
2135 "e" gnus-article-strip-trailing-space
2136 "w" gnus-article-remove-leading-whitespace)
2137
2138(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2139 "v" gnus-version
2140 "f" gnus-summary-fetch-faq
2141 "d" gnus-summary-describe-group
2142 "h" gnus-summary-describe-briefly
2143 "i" gnus-info-find-node
2144 "c" gnus-group-fetch-charter
2145 "C" gnus-group-fetch-control)
2146
2147(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2148 "e" gnus-summary-expire-articles
2149 "\M-\C-e" gnus-summary-expire-articles-now
2150 "\177" gnus-summary-delete-article
2151 [delete] gnus-summary-delete-article
2152 [backspace] gnus-summary-delete-article
2153 "m" gnus-summary-move-article
2154 "r" gnus-summary-respool-article
2155 "w" gnus-summary-edit-article
2156 "c" gnus-summary-copy-article
2157 "B" gnus-summary-crosspost-article
2158 "q" gnus-summary-respool-query
2159 "t" gnus-summary-respool-trace
2160 "i" gnus-summary-import-article
2161 "I" gnus-summary-create-article
2162 "p" gnus-summary-article-posted-p)
2163
2164(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2165 "o" gnus-summary-save-article
2166 "m" gnus-summary-save-article-mail
2167 "F" gnus-summary-write-article-file
2168 "r" gnus-summary-save-article-rmail
2169 "f" gnus-summary-save-article-file
2170 "b" gnus-summary-save-article-body-file
26c9afc3 2171 "B" gnus-summary-write-article-body-file
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2172 "h" gnus-summary-save-article-folder
2173 "v" gnus-summary-save-article-vm
2174 "p" gnus-summary-pipe-output
2175 "P" gnus-summary-muttprint
2176 "s" gnus-soup-add-article)
2177
2178(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2179 "b" gnus-summary-display-buttonized
2180 "m" gnus-summary-repair-multipart
2181 "v" gnus-article-view-part
2182 "o" gnus-article-save-part
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2183 "O" gnus-article-save-part-and-strip
2184 "r" gnus-article-replace-part
2185 "d" gnus-article-delete-part
2186 "t" gnus-article-view-part-as-type
2187 "j" gnus-article-jump-to-part
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2188 "c" gnus-article-copy-part
2189 "C" gnus-article-view-part-as-charset
2190 "e" gnus-article-view-part-externally
01c52d31 2191 "H" gnus-article-browse-html-article
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2192 "E" gnus-article-encrypt-body
2193 "i" gnus-article-inline-part
2194 "|" gnus-article-pipe-part)
2195
2196(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2197 "p" gnus-summary-mark-as-processable
2198 "u" gnus-summary-unmark-as-processable
2199 "U" gnus-summary-unmark-all-processable
2200 "v" gnus-uu-mark-over
2201 "s" gnus-uu-mark-series
2202 "r" gnus-uu-mark-region
2203 "g" gnus-uu-unmark-region
2204 "R" gnus-uu-mark-by-regexp
2205 "G" gnus-uu-unmark-by-regexp
2206 "t" gnus-uu-mark-thread
2207 "T" gnus-uu-unmark-thread
2208 "a" gnus-uu-mark-all
2209 "b" gnus-uu-mark-buffer
2210 "S" gnus-uu-mark-sparse
2211 "k" gnus-summary-kill-process-mark
2212 "y" gnus-summary-yank-process-mark
2213 "w" gnus-summary-save-process-mark
2214 "i" gnus-uu-invert-processable)
2215
2216(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2217 ;;"x" gnus-uu-extract-any
2218 "m" gnus-summary-save-parts
2219 "u" gnus-uu-decode-uu
2220 "U" gnus-uu-decode-uu-and-save
2221 "s" gnus-uu-decode-unshar
2222 "S" gnus-uu-decode-unshar-and-save
2223 "o" gnus-uu-decode-save
2224 "O" gnus-uu-decode-save
2225 "b" gnus-uu-decode-binhex
2226 "B" gnus-uu-decode-binhex
b890d447 2227 "Y" gnus-uu-decode-yenc
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2228 "p" gnus-uu-decode-postscript
2229 "P" gnus-uu-decode-postscript-and-save)
2230
2231(gnus-define-keys
2232 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2233 "u" gnus-uu-decode-uu-view
2234 "U" gnus-uu-decode-uu-and-save-view
2235 "s" gnus-uu-decode-unshar-view
2236 "S" gnus-uu-decode-unshar-and-save-view
2237 "o" gnus-uu-decode-save-view
2238 "O" gnus-uu-decode-save-view
2239 "b" gnus-uu-decode-binhex-view
2240 "B" gnus-uu-decode-binhex-view
2241 "p" gnus-uu-decode-postscript-view
2242 "P" gnus-uu-decode-postscript-and-save-view)
2243
2244(defvar gnus-article-post-menu nil)
2245
2246(defconst gnus-summary-menu-maxlen 20)
2247
2248(defun gnus-summary-menu-split (menu)
2249 ;; If we have lots of elements, divide them into groups of 20
2250 ;; and make a pane (or submenu) for each one.
2251 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2252 (let ((menu menu) sublists next
2253 (i 1))
2254 (while menu
2255 ;; Pull off the next gnus-summary-menu-maxlen elements
2256 ;; and make them the next element of sublist.
2257 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2258 (if next
2259 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2260 nil))
2261 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2262 (aref (car (last menu)) 0)) menu)
2263 sublists))
2264 (setq i (1+ i))
2265 (setq menu next))
2266 (nreverse sublists))
2267 ;; Few elements--put them all in one pane.
2268 menu))
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2269
2270(defun gnus-summary-make-menu-bar ()
2271 (gnus-turn-off-edit-menu 'summary)
2272
2273 (unless (boundp 'gnus-summary-misc-menu)
2274
2275 (easy-menu-define
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2276 gnus-summary-kill-menu gnus-summary-mode-map ""
2277 (cons
2278 "Score"
2279 (nconc
2280 (list
2281 ["Customize" gnus-score-customize t])
2282 (gnus-make-score-map 'increase)
2283 (gnus-make-score-map 'lower)
2284 '(("Mark"
2285 ["Kill below" gnus-summary-kill-below t]
2286 ["Mark above" gnus-summary-mark-above t]
2287 ["Tick above" gnus-summary-tick-above t]
2288 ["Clear above" gnus-summary-clear-above t])
2289 ["Current score" gnus-summary-current-score t]
2290 ["Set score" gnus-summary-set-score t]
2291 ["Switch current score file..." gnus-score-change-score-file t]
2292 ["Set mark below..." gnus-score-set-mark-below t]
2293 ["Set expunge below..." gnus-score-set-expunge-below t]
2294 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2295 ["Edit score file..." gnus-score-edit-file t]
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2296 ["Trace score" gnus-score-find-trace t]
2297 ["Find words" gnus-score-find-favourite-words t]
2298 ["Rescore buffer" gnus-summary-rescore t]
2299 ["Increase score..." gnus-summary-increase-score t]
2300 ["Lower score..." gnus-summary-lower-score t]))))
2301
2302 ;; Define both the Article menu in the summary buffer and the
2303 ;; equivalent Commands menu in the article buffer here for
2304 ;; consistency.
6748645f 2305 (let ((innards
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2306 `(("Hide"
2307 ["All" gnus-article-hide t]
2308 ["Headers" gnus-article-hide-headers t]
2309 ["Signature" gnus-article-hide-signature t]
2310 ["Citation" gnus-article-hide-citation t]
16409b0b 2311 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2312 ["Banner" gnus-article-strip-banner t]
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2313 ["Boring headers" gnus-article-hide-boring-headers t])
2314 ("Highlight"
2315 ["All" gnus-article-highlight t]
2316 ["Headers" gnus-article-highlight-headers t]
2317 ["Signature" gnus-article-highlight-signature t]
2318 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2319 ("MIME"
2320 ["Words" gnus-article-decode-mime-words t]
2321 ["Charset" gnus-article-decode-charset t]
2322 ["QP" gnus-article-de-quoted-unreadable t]
2323 ["Base64" gnus-article-de-base64-unreadable t]
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2324 ["View MIME buttons" gnus-summary-display-buttonized t]
2325 ["View all" gnus-mime-view-all-parts t]
2326 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2327 ["Encrypt body" gnus-article-encrypt-body
2328 :active (not (gnus-group-read-only-p))
2329 ,@(if (featurep 'xemacs) nil
2330 '(:help "Encrypt the message body on disk"))]
2331 ["Extract all parts..." gnus-summary-save-parts t]
2332 ("Multipart"
2333 ["Repair multipart" gnus-summary-repair-multipart t]
2334 ["Pipe part..." gnus-article-pipe-part t]
2335 ["Inline part" gnus-article-inline-part t]
01c52d31 2336 ["View part as type..." gnus-article-view-part-as-type t]
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2337 ["Encrypt body" gnus-article-encrypt-body
2338 :active (not (gnus-group-read-only-p))
2339 ,@(if (featurep 'xemacs) nil
2340 '(:help "Encrypt the message body on disk"))]
2341 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2342 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2343 ["View part with charset..." gnus-article-view-part-as-charset t]
2344 ["Copy part" gnus-article-copy-part t]
2345 ["Save part..." gnus-article-save-part t]
2346 ["View part" gnus-article-view-part t]))
2347 ("Date"
2348 ["Local" gnus-article-date-local t]
2349 ["ISO8601" gnus-article-date-iso8601 t]
2350 ["UT" gnus-article-date-ut t]
2351 ["Original" gnus-article-date-original t]
2352 ["Lapsed" gnus-article-date-lapsed t]
2353 ["User-defined" gnus-article-date-user t])
2354 ("Display"
2355 ["Remove images" gnus-article-remove-images t]
2356 ["Toggle smiley" gnus-treat-smiley t]
2357 ["Show X-Face" gnus-article-display-x-face t]
2358 ["Show picons in From" gnus-treat-from-picon t]
2359 ["Show picons in mail headers" gnus-treat-mail-picon t]
2360 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2361 ("View as different encoding"
2362 ,@(gnus-summary-menu-split
2363 (mapcar
2364 (lambda (cs)
2365 ;; Since easymenu under Emacs doesn't allow
2366 ;; lambda forms for menu commands, we should
2367 ;; provide intern'ed function symbols.
2368 (let ((command (intern (format "\
2369gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2370 (fset command
2371 `(lambda ()
2372 (interactive)
2373 (let ((gnus-summary-show-article-charset-alist
2374 '((1 . ,cs))))
2375 (gnus-summary-show-article 1))))
2376 `[,(symbol-name cs) ,command t]))
2377 (sort (if (fboundp 'coding-system-list)
2378 (coding-system-list)
2379 (mapcar 'car mm-mime-mule-charset-alist))
2380 'string<)))))
2381 ("Washing"
2382 ("Remove Blanks"
2383 ["Leading" gnus-article-strip-leading-blank-lines t]
2384 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2385 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2386 ["All of the above" gnus-article-strip-blank-lines t]
2387 ["All" gnus-article-strip-all-blank-lines t]
2388 ["Leading space" gnus-article-strip-leading-space t]
2389 ["Trailing space" gnus-article-strip-trailing-space t]
2390 ["Leading space in headers"
2391 gnus-article-remove-leading-whitespace t])
2392 ["Overstrike" gnus-article-treat-overstrike t]
2393 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2394 ["Emphasis" gnus-article-emphasize t]
2395 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2396 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2397 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2398 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2399 ["Remove CR" gnus-article-remove-cr t]
2400 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2401 ["Base64" gnus-article-de-base64-unreadable t]
2402 ["Rot 13" gnus-summary-caesar-message
2403 ,@(if (featurep 'xemacs) '(t)
2404 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2405 ["De-IDNA" gnus-summary-idna-message t]
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2406 ["Morse decode" gnus-summary-morse-message t]
2407 ["Unix pipe..." gnus-summary-pipe-message t]
2408 ["Add buttons" gnus-article-add-buttons t]
2409 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2410 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2411 ["Verbose header" gnus-summary-verbose-headers t]
2412 ["Toggle header" gnus-summary-toggle-header t]
2413 ["Unfold headers" gnus-article-treat-unfold-headers t]
2414 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2415 ["Html" gnus-article-wash-html t]
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2416 ["Unsplit URLs" gnus-article-unsplit-urls t]
2417 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2418 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2419 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
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2420 ("(Outlook) Deuglify"
2421 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2422 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2423 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2424 ["Full (Outlook) deuglify"
2425 gnus-article-outlook-deuglify-article t])
2426 )
2427 ("Output"
2428 ["Save in default format..." gnus-summary-save-article
2429 ,@(if (featurep 'xemacs) '(t)
2430 '(:help "Save article using default method"))]
2431 ["Save in file..." gnus-summary-save-article-file
2432 ,@(if (featurep 'xemacs) '(t)
2433 '(:help "Save article in file"))]
2434 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2435 ["Save in MH folder..." gnus-summary-save-article-folder t]
2436 ["Save in VM folder..." gnus-summary-save-article-vm t]
2437 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2438 ["Save body in file..." gnus-summary-save-article-body-file t]
2439 ["Pipe through a filter..." gnus-summary-pipe-output t]
2440 ["Add to SOUP packet" gnus-soup-add-article t]
2441 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
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2442 ["Print" gnus-summary-print-article
2443 ,@(if (featurep 'xemacs) '(t)
2444 '(:help "Generate and print a PostScript image"))])
2445 ("Copy, move,... (Backend)"
707f2b38 2446 ,@(if (featurep 'xemacs) nil
531e5812 2447 '(:help "Copying, moving, expiring articles..."))
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2448 ["Respool article..." gnus-summary-respool-article t]
2449 ["Move article..." gnus-summary-move-article
2450 (gnus-check-backend-function
2451 'request-move-article gnus-newsgroup-name)]
2452 ["Copy article..." gnus-summary-copy-article t]
2453 ["Crosspost article..." gnus-summary-crosspost-article
2454 (gnus-check-backend-function
2455 'request-replace-article gnus-newsgroup-name)]
2456 ["Import file..." gnus-summary-import-article
2457 (gnus-check-backend-function
2458 'request-accept-article gnus-newsgroup-name)]
2459 ["Create article..." gnus-summary-create-article
2460 (gnus-check-backend-function
2461 'request-accept-article gnus-newsgroup-name)]
2462 ["Check if posted" gnus-summary-article-posted-p t]
2463 ["Edit article" gnus-summary-edit-article
2464 (not (gnus-group-read-only-p))]
2465 ["Delete article" gnus-summary-delete-article
2466 (gnus-check-backend-function
2467 'request-expire-articles gnus-newsgroup-name)]
2468 ["Query respool" gnus-summary-respool-query t]
6748645f 2469 ["Trace respool" gnus-summary-respool-trace t]
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2470 ["Delete expirable articles" gnus-summary-expire-articles-now
2471 (gnus-check-backend-function
2472 'request-expire-articles gnus-newsgroup-name)])
2473 ("Extract"
2474 ["Uudecode" gnus-uu-decode-uu
2475 ,@(if (featurep 'xemacs) '(t)
2476 '(:help "Decode uuencoded article(s)"))]
2477 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2478 ["Unshar" gnus-uu-decode-unshar t]
2479 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2480 ["Save" gnus-uu-decode-save t]
2481 ["Binhex" gnus-uu-decode-binhex t]
2482 ["Postscript" gnus-uu-decode-postscript t]
2483 ["All MIME parts" gnus-summary-save-parts t])
2484 ("Cache"
2485 ["Enter article" gnus-cache-enter-article t]
2486 ["Remove article" gnus-cache-remove-article t])
16409b0b 2487 ["Translate" gnus-article-babel t]
23f87bed 2488 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2489 ["Make article buffer sticky" gnus-sticky-article t]
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2490 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2491 ["Isearch article..." gnus-summary-isearch-article t]
2492 ["Beginning of the article" gnus-summary-beginning-of-article t]
2493 ["End of the article" gnus-summary-end-of-article t]
2494 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2495 ["Fetch referenced articles" gnus-summary-refer-references t]
2496 ["Fetch current thread" gnus-summary-refer-thread t]
2497 ["Fetch article with id..." gnus-summary-refer-article t]
2498 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2499 ["Redisplay" gnus-summary-show-article t]
2500 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2501 (easy-menu-define
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2502 gnus-summary-article-menu gnus-summary-mode-map ""
2503 (cons "Article" innards))
6748645f 2504
1653df0f
SZ
2505 (if (not (keymapp gnus-summary-article-menu))
2506 (easy-menu-define
2507 gnus-article-commands-menu gnus-article-mode-map ""
2508 (cons "Commands" innards))
2509 ;; in Emacs, don't share menu.
a1506d29 2510 (setq gnus-article-commands-menu
1653df0f
SZ
2511 (copy-keymap gnus-summary-article-menu))
2512 (define-key gnus-article-mode-map [menu-bar commands]
2513 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2514
2515 (easy-menu-define
23f87bed
MB
2516 gnus-summary-thread-menu gnus-summary-mode-map ""
2517 '("Threads"
2518 ["Find all messages in thread" gnus-summary-refer-thread t]
2519 ["Toggle threading" gnus-summary-toggle-threads t]
2520 ["Hide threads" gnus-summary-hide-all-threads t]
2521 ["Show threads" gnus-summary-show-all-threads t]
2522 ["Hide thread" gnus-summary-hide-thread t]
2523 ["Show thread" gnus-summary-show-thread t]
2524 ["Go to next thread" gnus-summary-next-thread t]
2525 ["Go to previous thread" gnus-summary-prev-thread t]
2526 ["Go down thread" gnus-summary-down-thread t]
2527 ["Go up thread" gnus-summary-up-thread t]
2528 ["Top of thread" gnus-summary-top-thread t]
2529 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2530 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2531 ["Lower thread score" gnus-summary-lower-thread t]
2532 ["Raise thread score" gnus-summary-raise-thread t]
2533 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2534
2535 (easy-menu-define
23f87bed
MB
2536 gnus-summary-post-menu gnus-summary-mode-map ""
2537 `("Post"
2538 ["Send a message (mail or news)" gnus-summary-post-news
2539 ,@(if (featurep 'xemacs) '(t)
531e5812 2540 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2541 ["Followup" gnus-summary-followup
2542 ,@(if (featurep 'xemacs) '(t)
2543 '(:help "Post followup to this article"))]
2544 ["Followup and yank" gnus-summary-followup-with-original
2545 ,@(if (featurep 'xemacs) '(t)
2546 '(:help "Post followup to this article, quoting its contents"))]
2547 ["Supersede article" gnus-summary-supersede-article t]
2548 ["Cancel article" gnus-summary-cancel-article
2549 ,@(if (featurep 'xemacs) '(t)
2550 '(:help "Cancel an article you posted"))]
2551 ["Reply" gnus-summary-reply t]
2552 ["Reply and yank" gnus-summary-reply-with-original t]
2553 ["Wide reply" gnus-summary-wide-reply t]
2554 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2555 ,@(if (featurep 'xemacs) '(t)
2556 '(:help "Mail a reply, quoting this article"))]
2557 ["Very wide reply" gnus-summary-very-wide-reply t]
2558 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2559 ,@(if (featurep 'xemacs) '(t)
2560 '(:help "Mail a very wide reply, quoting this article"))]
2561 ["Mail forward" gnus-summary-mail-forward t]
2562 ["Post forward" gnus-summary-post-forward t]
2563 ["Digest and mail" gnus-uu-digest-mail-forward t]
2564 ["Digest and post" gnus-uu-digest-post-forward t]
2565 ["Resend message" gnus-summary-resend-message t]
2566 ["Resend message edit" gnus-summary-resend-message-edit t]
2567 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2568 ["Send a mail" gnus-summary-mail-other-window t]
2569 ["Create a local message" gnus-summary-news-other-window t]
2570 ["Uuencode and post" gnus-uu-post-news
2571 ,@(if (featurep 'xemacs) '(t)
2572 '(:help "Post a uuencoded article"))]
2573 ["Followup via news" gnus-summary-followup-to-mail t]
2574 ["Followup via news and yank"
2575 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2576 ["Strip signature on reply"
2577 (lambda ()
2578 (interactive)
2579 (if (not (memq message-cite-function
2580 '(message-cite-original-without-signature
2581 message-cite-original)))
2582 ;; Stupid workaround for XEmacs not honoring :visible.
2583 (message "Can't toggle this value of `message-cite-function'")
2584 (setq message-cite-function
2585 (if (eq message-cite-function
2586 'message-cite-original-without-signature)
2587 'message-cite-original
2588 'message-cite-original-without-signature))))
2589 ;; XEmacs barfs on :visible.
2590 ,@(if (featurep 'xemacs) nil
2591 '(:visible (memq message-cite-function
2592 '(message-cite-original-without-signature
2593 message-cite-original))))
2594 :style toggle
2595 :selected (eq message-cite-function
2596 'message-cite-original-without-signature)
2597 ,@(if (featurep 'xemacs) nil
2598 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2599 ;;("Draft"
2600 ;;["Send" gnus-summary-send-draft t]
2601 ;;["Send bounced" gnus-resend-bounced-mail t])
2602 ))
2603
2604 (cond
2605 ((not (keymapp gnus-summary-post-menu))
2606 (setq gnus-article-post-menu gnus-summary-post-menu))
2607 ((not gnus-article-post-menu)
2608 ;; Don't share post menu.
2609 (setq gnus-article-post-menu
2610 (copy-keymap gnus-summary-post-menu))))
2611 (define-key gnus-article-mode-map [menu-bar post]
2612 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2613
2614 (easy-menu-define
23f87bed
MB
2615 gnus-summary-misc-menu gnus-summary-mode-map ""
2616 `("Gnus"
2617 ("Mark Read"
2618 ["Mark as read" gnus-summary-mark-as-read-forward t]
2619 ["Mark same subject and select"
2620 gnus-summary-kill-same-subject-and-select t]
2621 ["Mark same subject" gnus-summary-kill-same-subject t]
2622 ["Catchup" gnus-summary-catchup
2623 ,@(if (featurep 'xemacs) '(t)
2624 '(:help "Mark unread articles in this group as read"))]
2625 ["Catchup all" gnus-summary-catchup-all t]
2626 ["Catchup to here" gnus-summary-catchup-to-here t]
2627 ["Catchup from here" gnus-summary-catchup-from-here t]
2628 ["Catchup region" gnus-summary-mark-region-as-read
2629 (gnus-mark-active-p)]
2630 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2631 ("Mark Various"
2632 ["Tick" gnus-summary-tick-article-forward t]
2633 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2634 ["Remove marks" gnus-summary-clear-mark-forward t]
2635 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2636 ["Set bookmark" gnus-summary-set-bookmark t]
2637 ["Remove bookmark" gnus-summary-remove-bookmark t])
8f7abae3
MB
2638 ("Registry Mark"
2639 ["Important" gnus-registry-set-article-Important-mark t]
2640 ["Not Important" gnus-registry-remove-article-Important-mark t]
2641 ["Work" gnus-registry-set-article-Work-mark t]
2642 ["Not Work" gnus-registry-remove-article-Work-mark t]
2643 ["Later" gnus-registry-set-article-Later-mark t]
2644 ["Not Later" gnus-registry-remove-article-Later-mark t]
2645 ["Personal" gnus-registry-set-article-Personal-mark t]
2646 ["Not Personal" gnus-registry-remove-article-Personal-mark t]
2647 ["To Do" gnus-registry-set-article-To-Do-mark t]
2648 ["Not To Do" gnus-registry-remove-article-To-Do-mark t])
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MB
2649 ("Limit to"
2650 ["Marks..." gnus-summary-limit-to-marks t]
2651 ["Subject..." gnus-summary-limit-to-subject t]
2652 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2653 ["Recipient..." gnus-summary-limit-to-recipient t]
2654 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2655 ["Age..." gnus-summary-limit-to-age t]
2656 ["Extra..." gnus-summary-limit-to-extra t]
2657 ["Score..." gnus-summary-limit-to-score t]
2658 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2659 ["Unread" gnus-summary-limit-to-unread t]
2660 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2661 ["Singletons" gnus-summary-limit-to-singletons t]
2662 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2663 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2664 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2665 ["Pop limit" gnus-summary-pop-limit t]
2666 ["Show dormant" gnus-summary-limit-include-dormant t]
2667 ["Hide childless dormant"
2668 gnus-summary-limit-exclude-childless-dormant t]
2669 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2670 ["Hide marked" gnus-summary-limit-exclude-marks t]
2671 ["Show expunged" gnus-summary-limit-include-expunged t])
2672 ("Process Mark"
2673 ["Set mark" gnus-summary-mark-as-processable t]
2674 ["Remove mark" gnus-summary-unmark-as-processable t]
2675 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2676 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2677 ["Mark above" gnus-uu-mark-over t]
2678 ["Mark series" gnus-uu-mark-series t]
2679 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2680 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2681 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2682 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2683 ["Mark all" gnus-uu-mark-all t]
2684 ["Mark buffer" gnus-uu-mark-buffer t]
2685 ["Mark sparse" gnus-uu-mark-sparse t]
2686 ["Mark thread" gnus-uu-mark-thread t]
2687 ["Unmark thread" gnus-uu-unmark-thread t]
2688 ("Process Mark Sets"
2689 ["Kill" gnus-summary-kill-process-mark t]
2690 ["Yank" gnus-summary-yank-process-mark
2691 gnus-newsgroup-process-stack]
2692 ["Save" gnus-summary-save-process-mark t]
2693 ["Run command on marked..." gnus-summary-universal-argument t]))
2694 ("Scroll article"
2695 ["Page forward" gnus-summary-next-page
2696 ,@(if (featurep 'xemacs) '(t)
2697 '(:help "Show next page of article"))]
2698 ["Page backward" gnus-summary-prev-page
2699 ,@(if (featurep 'xemacs) '(t)
2700 '(:help "Show previous page of article"))]
2701 ["Line forward" gnus-summary-scroll-up t])
2702 ("Move"
2703 ["Next unread article" gnus-summary-next-unread-article t]
2704 ["Previous unread article" gnus-summary-prev-unread-article t]
2705 ["Next article" gnus-summary-next-article t]
2706 ["Previous article" gnus-summary-prev-article t]
2707 ["Next unread subject" gnus-summary-next-unread-subject t]
2708 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2709 ["Next article same subject" gnus-summary-next-same-subject t]
2710 ["Previous article same subject" gnus-summary-prev-same-subject t]
2711 ["First unread article" gnus-summary-first-unread-article t]
2712 ["Best unread article" gnus-summary-best-unread-article t]
2713 ["Go to subject number..." gnus-summary-goto-subject t]
2714 ["Go to article number..." gnus-summary-goto-article t]
2715 ["Go to the last article" gnus-summary-goto-last-article t]
2716 ["Pop article off history" gnus-summary-pop-article t])
2717 ("Sort"
2718 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2719 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2720 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2721 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2722 ["Sort by subject" gnus-summary-sort-by-subject t]
2723 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2724 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2725 ["Sort by score" gnus-summary-sort-by-score t]
2726 ["Sort by lines" gnus-summary-sort-by-lines t]
2727 ["Sort by characters" gnus-summary-sort-by-chars t]
2728 ["Randomize" gnus-summary-sort-by-random t]
2729 ["Original sort" gnus-summary-sort-by-original t])
2730 ("Help"
2731 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2732 ["Describe group" gnus-summary-describe-group t]
2733 ["Fetch charter" gnus-group-fetch-charter
2734 ,@(if (featurep 'xemacs) nil
2735 '(:help "Display the charter of the current group"))]
2736 ["Fetch control message" gnus-group-fetch-control
2737 ,@(if (featurep 'xemacs) nil
2738 '(:help "Display the archived control message for the current group"))]
2739 ["Read manual" gnus-info-find-node t])
2740 ("Modes"
2741 ["Pick and read" gnus-pick-mode t]
2742 ["Binary" gnus-binary-mode t])
2743 ("Regeneration"
2744 ["Regenerate" gnus-summary-prepare t]
2745 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2746 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2747 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2748 ["Toggle threading" gnus-summary-toggle-threads t])
2749 ["See old articles" gnus-summary-insert-old-articles t]
2750 ["See new articles" gnus-summary-insert-new-articles t]
2751 ["Filter articles..." gnus-summary-execute-command t]
2752 ["Run command on articles..." gnus-summary-universal-argument t]
2753 ["Search articles forward..." gnus-summary-search-article-forward t]
2754 ["Search articles backward..." gnus-summary-search-article-backward t]
2755 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2756 ["Expand window" gnus-summary-expand-window t]
2757 ["Expire expirable articles" gnus-summary-expire-articles
2758 (gnus-check-backend-function
2759 'request-expire-articles gnus-newsgroup-name)]
2760 ["Edit local kill file" gnus-summary-edit-local-kill t]
2761 ["Edit main kill file" gnus-summary-edit-global-kill t]
2762 ["Edit group parameters" gnus-summary-edit-parameters t]
2763 ["Customize group parameters" gnus-summary-customize-parameters t]
2764 ["Send a bug report" gnus-bug t]
2765 ("Exit"
2766 ["Catchup and exit" gnus-summary-catchup-and-exit
2767 ,@(if (featurep 'xemacs) '(t)
2768 '(:help "Mark unread articles in this group as read, then exit"))]
2769 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2770 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2771 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2772 ["Exit group" gnus-summary-exit
2773 ,@(if (featurep 'xemacs) '(t)
2774 '(:help "Exit current group, return to group selection mode"))]
2775 ["Exit group without updating" gnus-summary-exit-no-update t]
2776 ["Exit and goto next group" gnus-summary-next-group t]
2777 ["Exit and goto prev group" gnus-summary-prev-group t]
2778 ["Reselect group" gnus-summary-reselect-current-group t]
2779 ["Rescan group" gnus-summary-rescan-group t]
2780 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2781
6748645f 2782 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2783
60bd5589
DL
2784(defvar gnus-summary-tool-bar-map nil)
2785
18c06a99
RS
2786;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2787;; affect _new_ message buffers. We might add a function that walks thru all
2788;; summary-mode buffers and force the update.
2789(defun gnus-summary-tool-bar-update (&optional symbol value)
2790 "Update summary mode toolbar.
2791Setter function for custom variables."
2792 (setq-default gnus-summary-tool-bar-map nil)
2793 (when symbol
2794 ;; When used as ":set" function:
2795 (set-default symbol value))
2796 (when (gnus-buffer-live-p gnus-summary-buffer)
2797 (with-current-buffer gnus-summary-buffer
2798 (gnus-summary-make-tool-bar))))
2799
2800(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2801 'gnus-summary-tool-bar-gnome
2802 'gnus-summary-tool-bar-retro)
2803 "Specifies the Gnus summary tool bar.
2804
2805It can be either a list or a symbol refering to a list. See
2806`gmm-tool-bar-from-list' for the format of the list. The
2807default key map is `gnus-summary-mode-map'.
2808
2809Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2810`gnus-summary-tool-bar-retro'."
2811 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2812 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2813 (repeat :tag "User defined list" gmm-tool-bar-item)
2814 (symbol))
330f707b 2815 :version "23.1" ;; No Gnus
18c06a99
RS
2816 :initialize 'custom-initialize-default
2817 :set 'gnus-summary-tool-bar-update
2818 :group 'gnus-summary)
2819
2820(defcustom gnus-summary-tool-bar-gnome
2821 '((gnus-summary-post-news "mail/compose" nil)
2822 (gnus-summary-insert-new-articles "mail/inbox" nil
2823 :visible (or (not gnus-agent)
2824 gnus-plugged))
2825 (gnus-summary-reply-with-original "mail/reply")
2826 (gnus-summary-reply "mail/reply" nil :visible nil)
2827 (gnus-summary-followup-with-original "mail/reply-all")
2828 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2829 (gnus-summary-mail-forward "mail/forward")
2830 (gnus-summary-save-article "mail/save")
2831 (gnus-summary-search-article-forward "search" nil :visible nil)
2832 (gnus-summary-print-article "print")
2833 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2834 ;; Some new commands that may need more suitable icons:
2835 (gnus-summary-save-newsrc "save" nil :visible nil)
2836 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2837 (gnus-summary-prev-article "left-arrow")
2838 (gnus-summary-next-article "right-arrow")
2839 (gnus-summary-next-page "next-page")
2840 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2841 ;;
2842 ;; Maybe some sort-by-... could be added:
2843 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2844 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2845 (gnus-summary-mark-as-expirable
2846 "delete" nil
2847 :visible (gnus-check-backend-function 'request-expire-articles
2848 gnus-newsgroup-name))
2849 (gnus-summary-mark-as-spam
2850 "mail/spam" t
2851 :visible (and (fboundp 'spam-group-ham-contents-p)
2852 (spam-group-ham-contents-p gnus-newsgroup-name))
2853 :help "Mark as spam")
2854 (gnus-summary-mark-as-read-forward
2855 "mail/not-spam" nil
2856 :visible (and (fboundp 'spam-group-spam-contents-p)
2857 (spam-group-spam-contents-p gnus-newsgroup-name)))
2858 ;;
2859 (gnus-summary-exit "exit")
2860 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2861 (gnus-info-find-node "help"))
2862 "List of functions for the summary tool bar (GNOME style).
2863
2864See `gmm-tool-bar-from-list' for the format of the list."
2865 :type '(repeat gmm-tool-bar-item)
330f707b 2866 :version "23.1" ;; No Gnus
18c06a99
RS
2867 :initialize 'custom-initialize-default
2868 :set 'gnus-summary-tool-bar-update
2869 :group 'gnus-summary)
2870
2871(defcustom gnus-summary-tool-bar-retro
2872 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2873 (gnus-summary-next-unread-article "gnus/next-ur")
2874 (gnus-summary-post-news "gnus/post")
2875 (gnus-summary-followup-with-original "gnus/fuwo")
2876 (gnus-summary-followup "gnus/followup")
2877 (gnus-summary-reply-with-original "gnus/reply-wo")
2878 (gnus-summary-reply "gnus/reply")
2879 (gnus-summary-caesar-message "gnus/rot13")
2880 (gnus-uu-decode-uu "gnus/uu-decode")
2881 (gnus-summary-save-article-file "gnus/save-aif")
2882 (gnus-summary-save-article "gnus/save-art")
2883 (gnus-uu-post-news "gnus/uu-post")
2884 (gnus-summary-catchup "gnus/catchup")
2885 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2886 (gnus-summary-exit "gnus/exit-summ")
2887 ;; Some new command that may need more suitable icons:
2888 (gnus-summary-print-article "gnus/print" nil :visible nil)
2889 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2890 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2891 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2892 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2893 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2894 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2895 ;;
2896 (gnus-info-find-node "gnus/help" nil :visible nil))
2897 "List of functions for the summary tool bar (retro look).
2898
2899See `gmm-tool-bar-from-list' for the format of the list."
2900 :type '(repeat gmm-tool-bar-item)
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(defcustom gnus-summary-tool-bar-zap-list t
2907 "List of icon items from the global tool bar.
2908These items are not displayed in the Gnus summary mode tool bar.
2909
2910See `gmm-tool-bar-from-list' for the format of the list."
2911 :type 'gmm-tool-bar-zap-list
330f707b 2912 :version "23.1" ;; No Gnus
18c06a99
RS
2913 :initialize 'custom-initialize-default
2914 :set 'gnus-summary-tool-bar-update
2915 :group 'gnus-summary)
2916
2917(defvar image-load-path)
f654fa04 2918(defvar tool-bar-map)
18c06a99
RS
2919
2920(defun gnus-summary-make-tool-bar (&optional force)
2921 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2922When FORCE, rebuild the tool bar."
2923 (when (and (not (featurep 'xemacs))
2924 (boundp 'tool-bar-mode)
2925 tool-bar-mode
2926 (or (not gnus-summary-tool-bar-map) force))
2927 (let* ((load-path
2928 (gmm-image-load-path-for-library "gnus"
2929 "mail/save.xpm"
2930 nil t))
2931 (image-load-path (cons (car load-path)
2932 (when (boundp 'image-load-path)
2933 image-load-path)))
2934 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2935 gnus-summary-tool-bar-zap-list
2936 'gnus-summary-mode-map)))
2937 (when map
2938 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2939 ;; uses it's value.
2940 (setq gnus-summary-tool-bar-map map))))
2941 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2942
eec82323
LMI
2943(defun gnus-score-set-default (var value)
2944 "A version of set that updates the GNU Emacs menu-bar."
2945 (set var value)
2946 ;; It is the message that forces the active status to be updated.
2947 (message ""))
2948
2949(defun gnus-make-score-map (type)
2950 "Make a summary score map of type TYPE."
2951 (if t
2952 nil
2953 (let ((headers '(("author" "from" string)
2954 ("subject" "subject" string)
2955 ("article body" "body" string)
2956 ("article head" "head" string)
2957 ("xref" "xref" string)
16409b0b 2958 ("extra header" "extra" string)
eec82323
LMI
2959 ("lines" "lines" number)
2960 ("followups to author" "followup" string)))
2961 (types '((number ("less than" <)
2962 ("greater than" >)
2963 ("equal" =))
2964 (string ("substring" s)
2965 ("exact string" e)
2966 ("fuzzy string" f)
2967 ("regexp" r))))
2968 (perms '(("temporary" (current-time-string))
2969 ("permanent" nil)
2970 ("immediate" now)))
2971 header)
2972 (list
2973 (apply
2974 'nconc
2975 (list
2976 (if (eq type 'lower)
2977 "Lower score"
2978 "Increase score"))
2979 (let (outh)
2980 (while headers
2981 (setq header (car headers))
2982 (setq outh
2983 (cons
2984 (apply
2985 'nconc
2986 (list (car header))
2987 (let ((ts (cdr (assoc (nth 2 header) types)))
2988 outt)
2989 (while ts
2990 (setq outt
2991 (cons
2992 (apply
2993 'nconc
2994 (list (caar ts))
2995 (let ((ps perms)
2996 outp)
2997 (while ps
2998 (setq outp
2999 (cons
3000 (vector
3001 (caar ps)
3002 (list
3003 'gnus-summary-score-entry
3004 (nth 1 header)
3005 (if (or (string= (nth 1 header)
3006 "head")
3007 (string= (nth 1 header)
3008 "body"))
3009 ""
3010 (list 'gnus-summary-header
3011 (nth 1 header)))
3012 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3013 (list 'gnus-score-delta-default
3014 nil)
eec82323
LMI
3015 (nth 1 (car ps))
3016 t)
3017 t)
3018 outp))
3019 (setq ps (cdr ps)))
3020 (list (nreverse outp))))
3021 outt))
3022 (setq ts (cdr ts)))
3023 (list (nreverse outt))))
3024 outh))
3025 (setq headers (cdr headers)))
3026 (list (nreverse outh))))))))
3027
704f1663
GM
3028
3029(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
3030
eec82323
LMI
3031\f
3032
3033(defun gnus-summary-mode (&optional group)
3034 "Major mode for reading articles.
3035
3036All normal editing commands are switched off.
3037\\<gnus-summary-mode-map>
3038Each line in this buffer represents one article. To read an
3039article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3040and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3041respectively.
3042
3043You can also post articles and send mail from this buffer. To
23f87bed 3044follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3045of an article, type `\\[gnus-summary-reply]'.
3046
3047There are approx. one gazillion commands you can execute in this
3048buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3049
3050The following commands are available:
3051
3052\\{gnus-summary-mode-map}"
3053 (interactive)
eec82323 3054 (kill-all-local-variables)
01c52d31
MB
3055 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3056 (gnus-summary-make-local-variables))
3057 (gnus-summary-make-local-variables)
3058 (setq gnus-newsgroup-name group)
60bd5589
DL
3059 (when (gnus-visual-p 'summary-menu 'menu)
3060 (gnus-summary-make-menu-bar)
3061 (gnus-summary-make-tool-bar))
eec82323
LMI
3062 (gnus-make-thread-indent-array)
3063 (gnus-simplify-mode-line)
3064 (setq major-mode 'gnus-summary-mode)
3065 (setq mode-name "Summary")
3066 (make-local-variable 'minor-mode-alist)
3067 (use-local-map gnus-summary-mode-map)
16409b0b 3068 (buffer-disable-undo)
01c52d31
MB
3069 (setq buffer-read-only t ;Disable modification
3070 show-trailing-whitespace nil)
eec82323 3071 (setq truncate-lines t)
9bfd9a76 3072 (add-to-invisibility-spec '(gnus-sum . t))
eec82323
LMI
3073 (gnus-summary-set-display-table)
3074 (gnus-set-default-directory)
eec82323
LMI
3075 (make-local-variable 'gnus-summary-line-format)
3076 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3077 (make-local-variable 'gnus-summary-dummy-line-format)
3078 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3079 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3080 (gnus-make-local-hook 'pre-command-hook)
6748645f 3081 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3082 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3083 (turn-on-gnus-mailing-list-mode)
87545352 3084 (mm-enable-multibyte)
eec82323
LMI
3085 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3086 (gnus-update-summary-mark-positions))
3087
3088(defun gnus-summary-make-local-variables ()
3089 "Make all the local summary buffer variables."
16409b0b
GM
3090 (let (global)
3091 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3092 (if (consp local)
3093 (progn
3094 (if (eq (cdr local) 'global)
3095 ;; Copy the global value of the variable.
3096 (setq global (symbol-value (car local)))
3097 ;; Use the value from the list.
3098 (setq global (eval (cdr local))))
16409b0b 3099 (set (make-local-variable (car local)) global))
eec82323 3100 ;; Simple nil-valued local variable.
16409b0b 3101 (set (make-local-variable local) nil)))))
eec82323
LMI
3102
3103(defun gnus-summary-clear-local-variables ()
3104 (let ((locals gnus-summary-local-variables))
3105 (while locals
3106 (if (consp (car locals))
01c52d31 3107 (and (symbolp (caar locals))
eec82323 3108 (set (caar locals) nil))
01c52d31 3109 (and (symbolp (car locals))
eec82323
LMI
3110 (set (car locals) nil)))
3111 (setq locals (cdr locals)))))
3112
3113;; Summary data functions.
3114
3115(defmacro gnus-data-number (data)
3116 `(car ,data))
3117
3118(defmacro gnus-data-set-number (data number)
3119 `(setcar ,data ,number))
3120
3121(defmacro gnus-data-mark (data)
3122 `(nth 1 ,data))
3123
3124(defmacro gnus-data-set-mark (data mark)
3125 `(setcar (nthcdr 1 ,data) ,mark))
3126
3127(defmacro gnus-data-pos (data)
3128 `(nth 2 ,data))
3129
3130(defmacro gnus-data-set-pos (data pos)
3131 `(setcar (nthcdr 2 ,data) ,pos))
3132
3133(defmacro gnus-data-header (data)
3134 `(nth 3 ,data))
3135
3136(defmacro gnus-data-set-header (data header)
3137 `(setf (nth 3 ,data) ,header))
3138
3139(defmacro gnus-data-level (data)
3140 `(nth 4 ,data))
3141
3142(defmacro gnus-data-unread-p (data)
3143 `(= (nth 1 ,data) gnus-unread-mark))
3144
3145(defmacro gnus-data-read-p (data)
3146 `(/= (nth 1 ,data) gnus-unread-mark))
3147
3148(defmacro gnus-data-pseudo-p (data)
3149 `(consp (nth 3 ,data)))
3150
3151(defmacro gnus-data-find (number)
3152 `(assq ,number gnus-newsgroup-data))
3153
3154(defmacro gnus-data-find-list (number &optional data)
3155 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3156 (memq (assq ,number bdata)
3157 bdata)))
3158
3159(defmacro gnus-data-make (number mark pos header level)
3160 `(list ,number ,mark ,pos ,header ,level))
3161
3162(defun gnus-data-enter (after-article number mark pos header level offset)
3163 (let ((data (gnus-data-find-list after-article)))
3164 (unless data
3165 (error "No such article: %d" after-article))
3166 (setcdr data (cons (gnus-data-make number mark pos header level)
3167 (cdr data)))
3168 (setq gnus-newsgroup-data-reverse nil)
3169 (gnus-data-update-list (cddr data) offset)))
3170
3171(defun gnus-data-enter-list (after-article list &optional offset)
3172 (when list
3173 (let ((data (and after-article (gnus-data-find-list after-article)))
3174 (ilist list))
6748645f
LMI
3175 (if (not (or data
3176 after-article))
3177 (let ((odata gnus-newsgroup-data))
3178 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3179 (when offset
6748645f 3180 (gnus-data-update-list odata offset)))
01c52d31 3181 ;; Find the last element in the list to be spliced into the main
6748645f 3182 ;; list.
01c52d31 3183 (setq list (last list))
6748645f
LMI
3184 (if (not data)
3185 (progn
3186 (setcdr list gnus-newsgroup-data)
3187 (setq gnus-newsgroup-data ilist)
3188 (when offset
3189 (gnus-data-update-list (cdr list) offset)))
3190 (setcdr list (cdr data))
3191 (setcdr data ilist)
3192 (when offset
3193 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3194 (setq gnus-newsgroup-data-reverse nil))))
3195
3196(defun gnus-data-remove (article &optional offset)
3197 (let ((data gnus-newsgroup-data))
3198 (if (= (gnus-data-number (car data)) article)
3199 (progn
3200 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3201 gnus-newsgroup-data-reverse nil)
3202 (when offset
3203 (gnus-data-update-list gnus-newsgroup-data offset)))
3204 (while (cdr data)
3205 (when (= (gnus-data-number (cadr data)) article)
3206 (setcdr data (cddr data))
3207 (when offset
3208 (gnus-data-update-list (cdr data) offset))
3209 (setq data nil
3210 gnus-newsgroup-data-reverse nil))
3211 (setq data (cdr data))))))
3212
3213(defmacro gnus-data-list (backward)
3214 `(if ,backward
3215 (or gnus-newsgroup-data-reverse
3216 (setq gnus-newsgroup-data-reverse
3217 (reverse gnus-newsgroup-data)))
3218 gnus-newsgroup-data))
3219
3220(defun gnus-data-update-list (data offset)
3221 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3222 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3223 (while data
3224 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3225 (setq data (cdr data))))
3226
eec82323
LMI
3227(defun gnus-summary-article-pseudo-p (article)
3228 "Say whether this article is a pseudo article or not."
3229 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3230
3231(defmacro gnus-summary-article-sparse-p (article)
3232 "Say whether this article is a sparse article or not."
a8151ef7 3233 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3234
3235(defmacro gnus-summary-article-ancient-p (article)
3236 "Say whether this article is a sparse article or not."
3237 `(memq ,article gnus-newsgroup-ancient))
3238
3239(defun gnus-article-parent-p (number)
3240 "Say whether this article is a parent or not."
3241 (let ((data (gnus-data-find-list number)))
23f87bed 3242 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3243 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3244 (gnus-data-level (nth 1 data))))))
3245
3246(defun gnus-article-children (number)
3247 "Return a list of all children to NUMBER."
3248 (let* ((data (gnus-data-find-list number))
3249 (level (gnus-data-level (car data)))
3250 children)
3251 (setq data (cdr data))
3252 (while (and data
3253 (= (gnus-data-level (car data)) (1+ level)))
3254 (push (gnus-data-number (car data)) children)
3255 (setq data (cdr data)))
3256 children))
3257
3258(defmacro gnus-summary-skip-intangible ()
3259 "If the current article is intangible, then jump to a different article."
3260 '(let ((to (get-text-property (point) 'gnus-intangible)))
3261 (and to (gnus-summary-goto-subject to))))
3262
3263(defmacro gnus-summary-article-intangible-p ()
3264 "Say whether this article is intangible or not."
3265 '(get-text-property (point) 'gnus-intangible))
3266
3267(defun gnus-article-read-p (article)
3268 "Say whether ARTICLE is read or not."
3269 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3270 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3271 (memq article gnus-newsgroup-unreads)
3272 (memq article gnus-newsgroup-unselected)
3273 (memq article gnus-newsgroup-dormant))))
3274
3275;; Some summary mode macros.
3276
3277(defmacro gnus-summary-article-number ()
3278 "The article number of the article on the current line.
8f688cb0 3279If there isn't an article number here, then we return the current
eec82323
LMI
3280article number."
3281 '(progn
3282 (gnus-summary-skip-intangible)
3283 (or (get-text-property (point) 'gnus-number)
3284 (gnus-summary-last-subject))))
3285
3286(defmacro gnus-summary-article-header (&optional number)
6748645f 3287 "Return the header of article NUMBER."
eec82323
LMI
3288 `(gnus-data-header (gnus-data-find
3289 ,(or number '(gnus-summary-article-number)))))
3290
3291(defmacro gnus-summary-thread-level (&optional number)
6748645f 3292 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3293 `(if (and (eq gnus-summary-make-false-root 'dummy)
3294 (get-text-property (point) 'gnus-intangible))
3295 0
3296 (gnus-data-level (gnus-data-find
3297 ,(or number '(gnus-summary-article-number))))))
3298
3299(defmacro gnus-summary-article-mark (&optional number)
6748645f 3300 "Return the mark of article NUMBER."
eec82323
LMI
3301 `(gnus-data-mark (gnus-data-find
3302 ,(or number '(gnus-summary-article-number)))))
3303
3304(defmacro gnus-summary-article-pos (&optional number)
6748645f 3305 "Return the position of the line of article NUMBER."
eec82323
LMI
3306 `(gnus-data-pos (gnus-data-find
3307 ,(or number '(gnus-summary-article-number)))))
3308
3309(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3310(defmacro gnus-summary-article-subject (&optional number)
3311 "Return current subject string or nil if nothing."
3312 `(let ((headers
3313 ,(if number
3314 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3315 '(gnus-data-header (assq (gnus-summary-article-number)
3316 gnus-newsgroup-data)))))
3317 (and headers
3318 (vectorp headers)
3319 (mail-header-subject headers))))
3320
3321(defmacro gnus-summary-article-score (&optional number)
3322 "Return current article score."
3323 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3324 gnus-newsgroup-scored))
3325 gnus-summary-default-score 0))
3326
3327(defun gnus-summary-article-children (&optional number)
6748645f 3328 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3329 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3330 (level (gnus-data-level (car data)))
3331 l children)
3332 (while (and (setq data (cdr data))
3333 (> (setq l (gnus-data-level (car data))) level))
3334 (and (= (1+ level) l)
3335 (push (gnus-data-number (car data))
3336 children)))
3337 (nreverse children)))
3338
3339(defun gnus-summary-article-parent (&optional number)
6748645f 3340 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3341 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3342 (gnus-data-list t)))
3343 (level (gnus-data-level (car data))))
3344 (if (zerop level)
3345 () ; This is a root.
3346 ;; We search until we find an article with a level less than
3347 ;; this one. That function has to be the parent.
3348 (while (and (setq data (cdr data))
3349 (not (< (gnus-data-level (car data)) level))))
3350 (and data (gnus-data-number (car data))))))
3351
3352(defun gnus-unread-mark-p (mark)
3353 "Say whether MARK is the unread mark."
3354 (= mark gnus-unread-mark))
3355
3356(defun gnus-read-mark-p (mark)
3357 "Say whether MARK is one of the marks that mark as read.
3358This is all marks except unread, ticked, dormant, and expirable."
3359 (not (or (= mark gnus-unread-mark)
3360 (= mark gnus-ticked-mark)
23f87bed 3361 (= mark gnus-spam-mark)
eec82323
LMI
3362 (= mark gnus-dormant-mark)
3363 (= mark gnus-expirable-mark))))
3364
3365(defmacro gnus-article-mark (number)
6748645f
LMI
3366 "Return the MARK of article NUMBER.
3367This macro should only be used when computing the mark the \"first\"
3368time; i.e., when generating the summary lines. After that,
3369`gnus-summary-article-mark' should be used to examine the
3370marks of articles."
eec82323 3371 `(cond
6748645f 3372 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3373 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3374 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3375 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3376 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3377 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3378 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3379 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3380 gnus-ancient-mark))))
3381
3382;; Saving hidden threads.
3383
eec82323
LMI
3384(defmacro gnus-save-hidden-threads (&rest forms)
3385 "Save hidden threads, eval FORMS, and restore the hidden threads."
3386 (let ((config (make-symbol "config")))
3387 `(let ((,config (gnus-hidden-threads-configuration)))
3388 (unwind-protect
3389 (save-excursion
3390 ,@forms)
3391 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3392(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3393(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3394
107ecebb
AS
3395(defun gnus-data-compute-positions ()
3396 "Compute the positions of all articles."
3397 (setq gnus-newsgroup-data-reverse nil)
3398 (let ((data gnus-newsgroup-data))
3399 (save-excursion
3400 (gnus-save-hidden-threads
3401 (gnus-summary-show-all-threads)
3402 (goto-char (point-min))
3403 (while data
3404 (while (get-text-property (point) 'gnus-intangible)
3405 (forward-line 1))
3406 (gnus-data-set-pos (car data) (+ (point) 3))
3407 (setq data (cdr data))
3408 (forward-line 1))))))
3409
16409b0b
GM
3410(defun gnus-hidden-threads-configuration ()
3411 "Return the current hidden threads configuration."
3412 (save-excursion
3413 (let (config)
3414 (goto-char (point-min))
3415 (while (search-forward "\r" nil t)
3416 (push (1- (point)) config))
3417 config)))
3418
3419(defun gnus-restore-hidden-threads-configuration (config)
3420 "Restore hidden threads configuration from CONFIG."
3421 (save-excursion
c7a91ce1 3422 (let (point (inhibit-read-only t))
16409b0b
GM
3423 (while (setq point (pop config))
3424 (when (and (< point (point-max))
3425 (goto-char point)
3426 (eq (char-after) ?\n))
3427 (subst-char-in-region point (1+ point) ?\n ?\r))))))
3428
eec82323
LMI
3429;; Various summary mode internalish functions.
3430
3431(defun gnus-mouse-pick-article (e)
3432 (interactive "e")
3433 (mouse-set-point e)
3434 (gnus-summary-next-page nil t))
3435
3436(defun gnus-summary-set-display-table ()
16409b0b
GM
3437 "Change the display table.
3438Odd characters have a tendency to mess
3439up nicely formatted displays - we make all possible glyphs
3440display only a single character."
eec82323
LMI
3441
3442 ;; We start from the standard display table, if any.
3443 (let ((table (or (copy-sequence standard-display-table)
3444 (make-display-table)))
3445 (i 32))
3446 ;; Nix out all the control chars...
3447 (while (>= (setq i (1- i)) 0)
2b968687 3448 (gnus-put-display-table i [??] table))
23f87bed 3449 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3450 ;; selective display).
2b968687
MB
3451 (gnus-put-display-table ?\n nil table)
3452 (gnus-put-display-table ?\r nil table)
6748645f 3453 ;; We keep TAB as well.
2b968687 3454 (gnus-put-display-table ?\t nil table)
719120ef 3455 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3456 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3457 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3458 160
3459 256)))
eec82323
LMI
3460 (while (>= (setq i (1- i)) 127)
3461 ;; Only modify if the entry is nil.
2b968687
MB
3462 (unless (gnus-get-display-table i table)
3463 (gnus-put-display-table i [??] table))))
eec82323
LMI
3464 (setq buffer-display-table table)))
3465
23f87bed
MB
3466(defun gnus-summary-set-article-display-arrow (pos)
3467 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3468 (when gnus-summary-display-arrow
3469 (make-local-variable 'overlay-arrow-position)
3470 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3471 (save-excursion
3472 (goto-char pos)
3473 (beginning-of-line)
3474 (unless overlay-arrow-position
3475 (setq overlay-arrow-position (make-marker)))
3476 (setq overlay-arrow-string "=>"
3477 overlay-arrow-position (set-marker overlay-arrow-position
3478 (point)
3479 (current-buffer))))))
3480
eec82323
LMI
3481(defun gnus-summary-setup-buffer (group)
3482 "Initialize summary buffer."
23f87bed
MB
3483 (let ((buffer (gnus-summary-buffer-name group))
3484 (dead-name (concat "*Dead Summary "
3485 (gnus-group-decoded-name group) "*")))
3486 ;; If a dead summary buffer exists, we kill it.
3487 (when (gnus-buffer-live-p dead-name)
3488 (gnus-kill-buffer dead-name))
eec82323
LMI
3489 (if (get-buffer buffer)
3490 (progn
3491 (set-buffer buffer)
3492 (setq gnus-summary-buffer (current-buffer))
3493 (not gnus-newsgroup-prepared))
3494 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3495 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3496 (gnus-summary-mode group)
3497 (when gnus-carpal
3498 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3499 (when (gnus-group-quit-config group)
3500 (set (make-local-variable 'gnus-single-article-buffer) nil))
3501 (make-local-variable 'gnus-article-buffer)
3502 (make-local-variable 'gnus-article-current)
3503 (make-local-variable 'gnus-original-article-buffer)
eec82323 3504 (setq gnus-newsgroup-name group)
23f87bed
MB
3505 ;; Set any local variables in the group parameters.
3506 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3507 t)))
3508
3509(defun gnus-set-global-variables ()
16409b0b
GM
3510 "Set the global equivalents of the buffer-local variables.
3511They are set to the latest values they had. These reflect the summary
3512buffer that was in action when the last article was fetched."
eec82323
LMI
3513 (when (eq major-mode 'gnus-summary-mode)
3514 (setq gnus-summary-buffer (current-buffer))
3515 (let ((name gnus-newsgroup-name)
3516 (marked gnus-newsgroup-marked)
23f87bed 3517 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3518 (unread gnus-newsgroup-unreads)
3519 (headers gnus-current-headers)
3520 (data gnus-newsgroup-data)
3521 (summary gnus-summary-buffer)
3522 (article-buffer gnus-article-buffer)
3523 (original gnus-original-article-buffer)
3524 (gac gnus-article-current)
3525 (reffed gnus-reffed-article-number)
16409b0b 3526 (score-file gnus-current-score-file)
23f87bed
MB
3527 (default-charset gnus-newsgroup-charset)
3528 vlist)
3529 (let ((locals gnus-newsgroup-variables))
3530 (while locals
3531 (if (consp (car locals))
3532 (push (eval (caar locals)) vlist)
3533 (push (eval (car locals)) vlist))
3534 (setq locals (cdr locals)))
3535 (setq vlist (nreverse vlist)))
01c52d31 3536 (with-current-buffer gnus-group-buffer
6748645f
LMI
3537 (setq gnus-newsgroup-name name
3538 gnus-newsgroup-marked marked
23f87bed 3539 gnus-newsgroup-spam-marked spam
6748645f
LMI
3540 gnus-newsgroup-unreads unread
3541 gnus-current-headers headers
3542 gnus-newsgroup-data data
3543 gnus-article-current gac
3544 gnus-summary-buffer summary
3545 gnus-article-buffer article-buffer
3546 gnus-original-article-buffer original
3547 gnus-reffed-article-number reffed
16409b0b
GM
3548 gnus-current-score-file score-file
3549 gnus-newsgroup-charset default-charset)
23f87bed
MB
3550 (let ((locals gnus-newsgroup-variables))
3551 (while locals
3552 (if (consp (car locals))
3553 (set (caar locals) (pop vlist))
3554 (set (car locals) (pop vlist)))
3555 (setq locals (cdr locals))))
eec82323
LMI
3556 ;; The article buffer also has local variables.
3557 (when (gnus-buffer-live-p gnus-article-buffer)
3558 (set-buffer gnus-article-buffer)
3559 (setq gnus-summary-buffer summary))))))
3560
3561(defun gnus-summary-article-unread-p (article)
3562 "Say whether ARTICLE is unread or not."
3563 (memq article gnus-newsgroup-unreads))
3564
3565(defun gnus-summary-first-article-p (&optional article)
3566 "Return whether ARTICLE is the first article in the buffer."
3567 (if (not (setq article (or article (gnus-summary-article-number))))
3568 nil
3569 (eq article (caar gnus-newsgroup-data))))
3570
3571(defun gnus-summary-last-article-p (&optional article)
3572 "Return whether ARTICLE is the last article in the buffer."
3573 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3574 ;; All non-existent numbers are the last article. :-)
3575 t
eec82323
LMI
3576 (not (cdr (gnus-data-find-list article)))))
3577
4921bbdd
CY
3578(defun gnus-make-thread-indent-array (&optional n)
3579 (when (or n
3580 (progn (setq n 200) nil)
3581 (null gnus-thread-indent-array)
3582 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3583 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3584 gnus-thread-indent-array-level gnus-thread-indent-level)
3585 (while (>= n 0)
3586 (aset gnus-thread-indent-array n
6a30c01d 3587 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3588 (setq n (1- n)))))
eec82323
LMI
3589
3590(defun gnus-update-summary-mark-positions ()
3591 "Compute where the summary marks are to go."
3592 (save-excursion
6748645f 3593 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3594 (set-buffer gnus-summary-buffer))
5153a47a
MB
3595 (let ((spec gnus-summary-line-format-spec)
3596 pos)
eec82323
LMI
3597 (save-excursion
3598 (gnus-set-work-buffer)
5153a47a
MB
3599 (let ((gnus-tmp-unread ?Z)
3600 (gnus-replied-mark ?Z)
3601 (gnus-score-below-mark ?Z)
3602 (gnus-score-over-mark ?Z)
3603 (gnus-undownloaded-mark ?Z)
3604 (gnus-summary-line-format-spec spec)
54506618 3605 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3606 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3607 case-fold-search ignores)
3608 ;; Here, all marks are bound to Z.
3609 (gnus-summary-insert-line header
3610 0 nil t gnus-tmp-unread t nil "" nil 1)
3611 (goto-char (point-min))
3612 ;; Memorize the positions of the same characters as dummy marks.
3613 (while (re-search-forward "[A-D]" nil t)
3614 (push (point) ignores))
54506618 3615 (erase-buffer)
5153a47a
MB
3616 ;; We use A-D as dummy marks in order to know column positions
3617 ;; where marks should be inserted.
3618 (setq gnus-tmp-unread ?A
3619 gnus-replied-mark ?B
3620 gnus-score-below-mark ?C
3621 gnus-score-over-mark ?C
3622 gnus-undownloaded-mark ?D)
3623 (gnus-summary-insert-line header
3624 0 nil t gnus-tmp-unread t nil "" nil 1)
3625 ;; Ignore characters which aren't dummy marks.
3626 (dolist (p ignores)
3627 (delete-region (goto-char (1- p)) p)
3628 (insert ?Z))
eec82323 3629 (goto-char (point-min))
7c3bb5a5 3630 (setq pos (list (cons 'unread
5153a47a 3631 (and (search-forward "A" nil t)
7c3bb5a5 3632 (- (point) (point-min) 1)))))
eec82323 3633 (goto-char (point-min))
5153a47a 3634 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3635 (- (point) (point-min) 1)))
eec82323
LMI
3636 pos)
3637 (goto-char (point-min))
5153a47a 3638 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3639 (- (point) (point-min) 1)))
6748645f
LMI
3640 pos)
3641 (goto-char (point-min))
5153a47a 3642 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3643 (- (point) (point-min) 1)))
eec82323
LMI
3644 pos)))
3645 (setq gnus-summary-mark-positions pos))))
3646
3647(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3648 "Insert a dummy root in the summary buffer."
3649 (beginning-of-line)
3650 (gnus-add-text-properties
3651 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3652 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3653
23f87bed
MB
3654(defun gnus-summary-extract-address-component (from)
3655 (or (car (funcall gnus-extract-address-components from))
3656 from))
3657
3658(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3659 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3660 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3661 ; Is it really necessary to do this next part for each summary line?
3662 ; Luckily, doesn't seem to slow things down much.
16409b0b 3663 (mail-parse-ignored-charsets
01c52d31
MB
3664 (with-current-buffer gnus-summary-buffer
3665 gnus-newsgroup-ignored-charsets)))
23f87bed 3666 (or
01c52d31
MB
3667 (and ignored-from-addresses
3668 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3669 (let ((extra-headers (mail-header-extra header))
3670 to
3671 newsgroups)
3672 (cond
3673 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3674 (concat gnus-summary-to-prefix
23f87bed
MB
3675 (inline
3676 (gnus-summary-extract-address-component
343d6628 3677 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3678 ((setq newsgroups
3679 (or
3680 (cdr (assq 'Newsgroups extra-headers))
3681 (and
3682 (memq 'Newsgroups gnus-extra-headers)
3683 (eq (car (gnus-find-method-for-group
3684 gnus-newsgroup-name)) 'nntp)
3685 (gnus-group-real-name gnus-newsgroup-name))))
3686 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3687 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3688
eec82323
LMI
3689(defun gnus-summary-insert-line (gnus-tmp-header
3690 gnus-tmp-level gnus-tmp-current
23f87bed 3691 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3692 gnus-tmp-expirable gnus-tmp-subject-or-nil
3693 &optional gnus-tmp-dummy gnus-tmp-score
3694 gnus-tmp-process)
4921bbdd
CY
3695 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3696 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3697 gnus-tmp-level)))
eec82323
LMI
3698 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3699 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3700 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3701 (gnus-tmp-score-char
3702 (if (or (null gnus-summary-default-score)
3703 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3704 gnus-summary-zcore-fuzz))
23f87bed 3705 ? ;Whitespace
eec82323
LMI
3706 (if (< gnus-tmp-score gnus-summary-default-score)
3707 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3708 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3709 (gnus-tmp-replied
3710 (cond (gnus-tmp-process gnus-process-mark)
3711 ((memq gnus-tmp-current gnus-newsgroup-cached)
3712 gnus-cached-mark)
3713 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3714 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3715 gnus-forwarded-mark)
eec82323
LMI
3716 ((memq gnus-tmp-current gnus-newsgroup-saved)
3717 gnus-saved-mark)
23f87bed
MB
3718 ((memq gnus-tmp-number gnus-newsgroup-recent)
3719 gnus-recent-mark)
3720 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3721 gnus-unseen-mark)
3722 (t gnus-no-mark)))
3723 (gnus-tmp-downloaded
3724 (cond (undownloaded
3725 gnus-undownloaded-mark)
3726 (gnus-newsgroup-agentized
3727 gnus-downloaded-mark)
3728 (t
3729 gnus-no-mark)))
eec82323
LMI
3730 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3731 (gnus-tmp-name
3732 (cond
3733 ((string-match "<[^>]+> *$" gnus-tmp-from)
3734 (let ((beg (match-beginning 0)))
23f87bed
MB
3735 (or (and (string-match "^\".+\"" gnus-tmp-from)
3736 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3737 (substring gnus-tmp-from 0 beg))))
3738 ((string-match "(.+)" gnus-tmp-from)
3739 (substring gnus-tmp-from
3740 (1+ (match-beginning 0)) (1- (match-end 0))))
3741 (t gnus-tmp-from)))
3742 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3743 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3744 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3745 (inhibit-read-only t))
eec82323
LMI
3746 (when (string= gnus-tmp-name "")
3747 (setq gnus-tmp-name gnus-tmp-from))
3748 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3749 (setq gnus-tmp-lines -1))
3750 (if (= gnus-tmp-lines -1)
3751 (setq gnus-tmp-lines "?")
3752 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3753 (condition-case ()
3754 (gnus-put-text-property
3755 (point)
3756 (progn (eval gnus-summary-line-format-spec) (point))
3757 'gnus-number gnus-tmp-number)
3758 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3759 (when (gnus-visual-p 'summary-highlight 'highlight)
3760 (forward-line -1)
6748645f 3761 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3762 (forward-line 1))))
3763
3764(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3765 "Update summary line after change."
eec82323
LMI
3766 (when (and gnus-summary-default-score
3767 (not gnus-summary-inhibit-highlight))
3768 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3769 (article (gnus-summary-article-number))
3770 (score (gnus-summary-article-score article)))
3771 (unless dont-update
3772 (if (and gnus-summary-mark-below
3773 (< (gnus-summary-article-score)
3774 gnus-summary-mark-below))
3775 ;; This article has a low score, so we mark it as read.
3776 (when (memq article gnus-newsgroup-unreads)
3777 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3778 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3779 ;; This article was previously marked as read on account
3780 ;; of a low score, but now it has risen, so we mark it as
3781 ;; unread.
3782 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3783 (gnus-summary-update-mark
3784 (if (or (null gnus-summary-default-score)
3785 (<= (abs (- score gnus-summary-default-score))
3786 gnus-summary-zcore-fuzz))
23f87bed 3787 ? ;Whitespace
eec82323
LMI
3788 (if (< score gnus-summary-default-score)
3789 gnus-score-below-mark gnus-score-over-mark))
3790 'score))
3791 ;; Do visual highlighting.
3792 (when (gnus-visual-p 'summary-highlight 'highlight)
6748645f 3793 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3794
3795(defvar gnus-tmp-new-adopts nil)
3796
3797(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3798 "Return the number of articles in THREAD.
3799This may be 0 in some cases -- if none of the articles in
3800the thread are to be displayed."
3801 (let* ((number
23f87bed 3802 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3803 (cond
3804 ((not (listp thread))
3805 1)
3806 ((and (consp thread) (cdr thread))
3807 (apply
3808 '+ 1 (mapcar
3809 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3810 ((null thread)
3811 1)
3812 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3813 1)
3814 (t 0))))
3815 (when (and level (zerop level) gnus-tmp-new-adopts)
3816 (incf number
3817 (apply '+ (mapcar
3818 'gnus-summary-number-of-articles-in-thread
3819 gnus-tmp-new-adopts))))
3820 (if char
3821 (if (> number 1) gnus-not-empty-thread-mark
3822 gnus-empty-thread-mark)
3823 number)))
3824
23f87bed
MB
3825(defsubst gnus-summary-line-message-size (head)
3826 "Return pretty-printed version of message size.
3827This function is intended to be used in
3828`gnus-summary-line-format-alist'."
3829 (let ((c (or (mail-header-chars head) -1)))
3830 (cond ((< c 0) "n/a") ; chars not available
3831 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3832 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3833 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3834 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3835
3836
eec82323
LMI
3837(defun gnus-summary-set-local-parameters (group)
3838 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3839 (let ((vars '(quit-config))) ; Ignore quit-config.
3840 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3841 (and (consp elem) ; Has to be a cons.
3842 (consp (cdr elem)) ; The cdr has to be a list.
3843 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3844 (not (memq (car elem) vars))
e3e955fe 3845 (ignore-errors
23f87bed 3846 (push (car elem) vars)
e3e955fe
MB
3847 ;; Variables like `gnus-show-threads' that are globally
3848 ;; bound, if used as group parameters, need to get to be
3849 ;; buffer-local, whereas just parameters like `gcc-self',
3850 ;; `timestamp', etc. should not be bound as variables.
3851 (if (boundp (car elem))
3852 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3853 (eval (nth 1 elem))))))))
eec82323
LMI
3854
3855(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3856 kill-buffer no-display backward
3857 select-articles)
eec82323
LMI
3858 "Start reading news in newsgroup GROUP.
3859If SHOW-ALL is non-nil, already read articles are also listed.
3860If NO-ARTICLE is non-nil, no article is selected initially.
3861If NO-DISPLAY, don't generate a summary buffer."
3862 (let (result)
3863 (while (and group
3864 (null (setq result
3865 (let ((gnus-auto-select-next nil))
6748645f
LMI
3866 (or (gnus-summary-read-group-1
3867 group show-all no-article
3868 kill-buffer no-display
3869 select-articles)
3870 (setq show-all nil
16409b0b 3871 select-articles nil)))))
eec82323
LMI
3872 (eq gnus-auto-select-next 'quietly))
3873 (set-buffer gnus-group-buffer)
6748645f
LMI
3874 ;; The entry function called above goes to the next
3875 ;; group automatically, so we go two groups back
3876 ;; if we are searching for the previous group.
3877 (when backward
3878 (gnus-group-prev-unread-group 2))
eec82323
LMI
3879 (if (not (equal group (gnus-group-group-name)))
3880 (setq group (gnus-group-group-name))
3881 (setq group nil)))
3882 result))
3883
3884(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3885 kill-buffer no-display
3886 &optional select-articles)
eec82323 3887 ;; Killed foreign groups can't be entered.
23f87bed
MB
3888 ;; (when (and (not (gnus-group-native-p group))
3889 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3890 ;; (error "Dead non-native groups can't be entered"))
3891 (gnus-message 5 "Retrieving newsgroup: %s..."
3892 (gnus-group-decoded-name group))
eec82323
LMI
3893 (let* ((new-group (gnus-summary-setup-buffer group))
3894 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3895 (did-select (and new-group (gnus-select-newsgroup
3896 group show-all select-articles))))
eec82323
LMI
3897 (cond
3898 ;; This summary buffer exists already, so we just select it.
3899 ((not new-group)
3900 (gnus-set-global-variables)
3901 (when kill-buffer
3902 (gnus-kill-or-deaden-summary kill-buffer))
3903 (gnus-configure-windows 'summary 'force)
3904 (gnus-set-mode-line 'summary)
3905 (gnus-summary-position-point)
3906 (message "")
3907 t)
3908 ;; We couldn't select this group.
3909 ((null did-select)
3910 (when (and (eq major-mode 'gnus-summary-mode)
3911 (not (equal (current-buffer) kill-buffer)))
3912 (kill-buffer (current-buffer))
3913 (if (not quit-config)
3914 (progn
6748645f
LMI
3915 ;; Update the info -- marks might need to be removed,
3916 ;; for instance.
3917 (gnus-summary-update-info)
eec82323
LMI
3918 (set-buffer gnus-group-buffer)
3919 (gnus-group-jump-to-group group)
3920 (gnus-group-next-unread-group 1))
3921 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3922 (let ((grpinfo (gnus-get-info group)))
3923 (if (null (gnus-info-read grpinfo))
3924 (gnus-message 3 "Group %s contains no messages"
3925 (gnus-group-decoded-name group))
3926 (gnus-message 3 "Can't select group")))
eec82323
LMI
3927 nil)
3928 ;; The user did a `C-g' while prompting for number of articles,
3929 ;; so we exit this group.
3930 ((eq did-select 'quit)
3931 (and (eq major-mode 'gnus-summary-mode)
3932 (not (equal (current-buffer) kill-buffer))
3933 (kill-buffer (current-buffer)))
3934 (when kill-buffer
3935 (gnus-kill-or-deaden-summary kill-buffer))
3936 (if (not quit-config)
3937 (progn
3938 (set-buffer gnus-group-buffer)
3939 (gnus-group-jump-to-group group)
3940 (gnus-group-next-unread-group 1)
3941 (gnus-configure-windows 'group 'force))
3942 (gnus-handle-ephemeral-exit quit-config))
3943 ;; Finally signal the quit.
3944 (signal 'quit nil))
3945 ;; The group was successfully selected.
3946 (t
3947 (gnus-set-global-variables)
3948 ;; Save the active value in effect when the group was entered.
3949 (setq gnus-newsgroup-active
3950 (gnus-copy-sequence
3951 (gnus-active gnus-newsgroup-name)))
3952 ;; You can change the summary buffer in some way with this hook.
6748645f 3953 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3954 (when (memq 'summary (gnus-update-format-specifications
3955 nil 'summary 'summary-mode 'summary-dummy))
3956 ;; The format specification for the summary line was updated,
3957 ;; so we need to update the mark positions as well.
3958 (gnus-update-summary-mark-positions))
eec82323
LMI
3959 ;; Do score processing.
3960 (when gnus-use-scoring
3961 (gnus-possibly-score-headers))
3962 ;; Check whether to fill in the gaps in the threads.
3963 (when gnus-build-sparse-threads
3964 (gnus-build-sparse-threads))
3965 ;; Find the initial limit.
26c9afc3
MB
3966 (if show-all
3967 (let ((gnus-newsgroup-dormant nil))
eec82323 3968 (gnus-summary-initial-limit show-all))
26c9afc3 3969 (gnus-summary-initial-limit show-all))
eec82323
LMI
3970 ;; Generate the summary buffer.
3971 (unless no-display
3972 (gnus-summary-prepare))
3973 (when gnus-use-trees
3974 (gnus-tree-open group)
3975 (setq gnus-summary-highlight-line-function
3976 'gnus-tree-highlight-article))
3977 ;; If the summary buffer is empty, but there are some low-scored
3978 ;; articles or some excluded dormants, we include these in the
3979 ;; buffer.
3980 (when (and (zerop (buffer-size))
3981 (not no-display))
3982 (cond (gnus-newsgroup-dormant
3983 (gnus-summary-limit-include-dormant))
3984 ((and gnus-newsgroup-scored show-all)
3985 (gnus-summary-limit-include-expunged t))))
3986 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3987 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3988 (if (and (zerop (buffer-size))
3989 (not no-display))
3990 (progn
3991 ;; This newsgroup is empty.
3992 (gnus-summary-catchup-and-exit nil t)
3993 (gnus-message 6 "No unread news")
3994 (when kill-buffer
3995 (gnus-kill-or-deaden-summary kill-buffer))
3996 ;; Return nil from this function.
3997 nil)
3998 ;; Hide conversation thread subtrees. We cannot do this in
3999 ;; gnus-summary-prepare-hook since kill processing may not
4000 ;; work with hidden articles.
23f87bed 4001 (gnus-summary-maybe-hide-threads)
6748645f
LMI
4002 (when kill-buffer
4003 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 4004 (gnus-summary-auto-select-subject)
eec82323
LMI
4005 ;; Show first unread article if requested.
4006 (if (and (not no-article)
4007 (not no-display)
4008 gnus-newsgroup-unreads
4009 gnus-auto-select-first)
16409b0b
GM
4010 (progn
4011 (gnus-configure-windows 'summary)
23f87bed
MB
4012 (let ((art (gnus-summary-article-number)))
4013 (unless (and (not gnus-plugged)
4014 (or (memq art gnus-newsgroup-undownloaded)
4015 (memq art gnus-newsgroup-downloadable)))
4016 (gnus-summary-goto-article art))))
4017 ;; Don't select any articles.
eec82323 4018 (gnus-summary-position-point)
6748645f
LMI
4019 (gnus-configure-windows 'summary 'force)
4020 (gnus-set-mode-line 'summary))
23f87bed
MB
4021 (when (and gnus-auto-center-group
4022 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4023 ;; Gotta use windows, because recenter does weird stuff if
4024 ;; the current buffer ain't the displayed window.
4025 (let ((owin (selected-window)))
4026 (select-window (get-buffer-window gnus-group-buffer t))
4027 (when (gnus-group-goto-group group)
4028 (recenter))
4029 (select-window owin)))
4030 ;; Mark this buffer as "prepared".
4031 (setq gnus-newsgroup-prepared t)
6748645f 4032 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4033 (unless (gnus-ephemeral-group-p group)
4034 (gnus-group-update-group group))
eec82323
LMI
4035 t)))))
4036
23f87bed
MB
4037(defun gnus-summary-auto-select-subject ()
4038 "Select the subject line on initial group entry."
4039 (goto-char (point-min))
4040 (cond
4041 ((eq gnus-auto-select-subject 'best)
4042 (gnus-summary-best-unread-subject))
4043 ((eq gnus-auto-select-subject 'unread)
4044 (gnus-summary-first-unread-subject))
4045 ((eq gnus-auto-select-subject 'unseen)
4046 (gnus-summary-first-unseen-subject))
4047 ((eq gnus-auto-select-subject 'unseen-or-unread)
4048 (gnus-summary-first-unseen-or-unread-subject))
4049 ((eq gnus-auto-select-subject 'first)
4050 ;; Do nothing.
4051 )
4052 ((functionp gnus-auto-select-subject)
4053 (funcall gnus-auto-select-subject))))
4054
eec82323
LMI
4055(defun gnus-summary-prepare ()
4056 "Generate the summary buffer."
4057 (interactive)
c7a91ce1 4058 (let ((inhibit-read-only t))
eec82323
LMI
4059 (erase-buffer)
4060 (setq gnus-newsgroup-data nil
4061 gnus-newsgroup-data-reverse nil)
6748645f 4062 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4063 ;; Generate the buffer, either with threads or without.
4064 (when gnus-newsgroup-headers
4065 (gnus-summary-prepare-threads
4066 (if gnus-show-threads
4067 (gnus-sort-gathered-threads
4068 (funcall gnus-summary-thread-gathering-function
4069 (gnus-sort-threads
4070 (gnus-cut-threads (gnus-make-threads)))))
4071 ;; Unthreaded display.
4072 (gnus-sort-articles gnus-newsgroup-headers))))
4073 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4074 ;; Call hooks for modifying summary buffer.
4075 (goto-char (point-min))
6748645f 4076 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4077
4078(defsubst gnus-general-simplify-subject (subject)
23f87bed 4079 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4080 (setq subject
4081 (cond
4082 ;; Truncate the subject.
6748645f
LMI
4083 (gnus-simplify-subject-functions
4084 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4085 ((numberp gnus-summary-gather-subject-limit)
4086 (setq subject (gnus-simplify-subject-re subject))
4087 (if (> (length subject) gnus-summary-gather-subject-limit)
4088 (substring subject 0 gnus-summary-gather-subject-limit)
4089 subject))
4090 ;; Fuzzily simplify it.
4091 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4092 (gnus-simplify-subject-fuzzy subject))
4093 ;; Just remove the leading "Re:".
4094 (t
4095 (gnus-simplify-subject-re subject))))
4096
4097 (if (and gnus-summary-gather-exclude-subject
4098 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4099 nil ; This article shouldn't be gathered
eec82323
LMI
4100 subject))
4101
4102(defun gnus-summary-simplify-subject-query ()
4103 "Query where the respool algorithm would put this article."
4104 (interactive)
eec82323 4105 (gnus-summary-select-article)
274f1353 4106 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4107
4108(defun gnus-gather-threads-by-subject (threads)
4109 "Gather threads by looking at Subject headers."
4110 (if (not gnus-summary-make-false-root)
4111 threads
4112 (let ((hashtb (gnus-make-hashtable 1024))
4113 (prev threads)
4114 (result threads)
4115 subject hthread whole-subject)
4116 (while threads
4117 (setq subject (gnus-general-simplify-subject
4118 (setq whole-subject (mail-header-subject
4119 (caar threads)))))
4120 (when subject
4121 (if (setq hthread (gnus-gethash subject hashtb))
4122 (progn
4123 ;; We enter a dummy root into the thread, if we
4124 ;; haven't done that already.
4125 (unless (stringp (caar hthread))
4126 (setcar hthread (list whole-subject (car hthread))))
4127 ;; We add this new gathered thread to this gathered
4128 ;; thread.
4129 (setcdr (car hthread)
4130 (nconc (cdar hthread) (list (car threads))))
4131 ;; Remove it from the list of threads.
4132 (setcdr prev (cdr threads))
4133 (setq threads prev))
4134 ;; Enter this thread into the hash table.
23f87bed
MB
4135 (gnus-sethash subject
4136 (if gnus-summary-make-false-root-always
4137 (progn
4138 ;; If you want a dummy root above all
4139 ;; threads...
4140 (setcar threads (list whole-subject
4141 (car threads)))
4142 threads)
4143 threads)
4144 hashtb)))
eec82323
LMI
4145 (setq prev threads)
4146 (setq threads (cdr threads)))
4147 result)))
4148
4149(defun gnus-gather-threads-by-references (threads)
4150 "Gather threads by looking at References headers."
4151 (let ((idhashtb (gnus-make-hashtable 1024))
4152 (thhashtb (gnus-make-hashtable 1024))
4153 (prev threads)
4154 (result threads)
4155 ids references id gthread gid entered ref)
4156 (while threads
4157 (when (setq references (mail-header-references (caar threads)))
4158 (setq id (mail-header-id (caar threads))
23f87bed 4159 ids (inline (gnus-split-references references))
eec82323
LMI
4160 entered nil)
4161 (while (setq ref (pop ids))
4162 (setq ids (delete ref ids))
4163 (if (not (setq gid (gnus-gethash ref idhashtb)))
4164 (progn
4165 (gnus-sethash ref id idhashtb)
4166 (gnus-sethash id threads thhashtb))
4167 (setq gthread (gnus-gethash gid thhashtb))
4168 (unless entered
4169 ;; We enter a dummy root into the thread, if we
4170 ;; haven't done that already.
4171 (unless (stringp (caar gthread))
4172 (setcar gthread (list (mail-header-subject (caar gthread))
4173 (car gthread))))
4174 ;; We add this new gathered thread to this gathered
4175 ;; thread.
4176 (setcdr (car gthread)
4177 (nconc (cdar gthread) (list (car threads)))))
4178 ;; Add it into the thread hash table.
4179 (gnus-sethash id gthread thhashtb)
4180 (setq entered t)
4181 ;; Remove it from the list of threads.
4182 (setcdr prev (cdr threads))
4183 (setq threads prev))))
4184 (setq prev threads)
4185 (setq threads (cdr threads)))
4186 result))
4187
4188(defun gnus-sort-gathered-threads (threads)
16409b0b 4189 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4190 (let ((result threads))
4191 (while threads
4192 (when (stringp (caar threads))
4193 (setcdr (car threads)
16409b0b 4194 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4195 (setq threads (cdr threads)))
4196 result))
4197
4198(defun gnus-thread-loop-p (root thread)
4199 "Say whether ROOT is in THREAD."
4200 (let ((stack (list thread))
4201 (infloop 0)
4202 th)
4203 (while (setq thread (pop stack))
4204 (setq th (cdr thread))
4205 (while (and th
4206 (not (eq (caar th) root)))
4207 (pop th))
4208 (if th
4209 ;; We have found a loop.
4210 (let (ref-dep)
4211 (setcdr thread (delq (car th) (cdr thread)))
4212 (if (boundp (setq ref-dep (intern "none"
4213 gnus-newsgroup-dependencies)))
4214 (setcdr (symbol-value ref-dep)
4215 (nconc (cdr (symbol-value ref-dep))
4216 (list (car th))))
4217 (set ref-dep (list nil (car th))))
4218 (setq infloop 1
4219 stack nil))
4220 ;; Push all the subthreads onto the stack.
4221 (push (cdr thread) stack)))
4222 infloop))
4223
4224(defun gnus-make-threads ()
01ccbb85 4225 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4226 (let (threads)
4227 (while (catch 'infloop
4228 (mapatoms
4229 (lambda (refs)
4230 ;; Deal with self-referencing References loops.
4231 (when (and (car (symbol-value refs))
4232 (not (zerop
4233 (apply
4234 '+
4235 (mapcar
4236 (lambda (thread)
4237 (gnus-thread-loop-p
4238 (car (symbol-value refs)) thread))
4239 (cdr (symbol-value refs)))))))
4240 (setq threads nil)
4241 (throw 'infloop t))
4242 (unless (car (symbol-value refs))
23f87bed
MB
4243 ;; These threads do not refer back to any other
4244 ;; articles, so they're roots.
eec82323
LMI
4245 (setq threads (append (cdr (symbol-value refs)) threads))))
4246 gnus-newsgroup-dependencies)))
4247 threads))
4248
6748645f 4249;; Build the thread tree.
16409b0b 4250(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4251 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4252
4253If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4254if it was already present.
4255
4256If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4257will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4258Message-IDs will be renamed to a unique Message-ID before being
4259entered.
6748645f
LMI
4260
4261Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4262 (let* ((id (mail-header-id header))
4263 (id-dep (and id (intern id dependencies)))
23f87bed 4264 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4265 ;; Enter this `header' in the `dependencies' table.
4266 (cond
4267 ((not id-dep)
4268 (setq header nil))
4269 ;; The first two cases do the normal part: enter a new `header'
4270 ;; in the `dependencies' table.
4271 ((not (boundp id-dep))
4272 (set id-dep (list header)))
4273 ((null (car (symbol-value id-dep)))
4274 (setcar (symbol-value id-dep) header))
4275
4276 ;; From here the `header' was already present in the
4277 ;; `dependencies' table.
4278 (force-new
4279 ;; Overrides an existing entry;
4280 ;; just set the header part of the entry.
23f87bed
MB
4281 (setcar (symbol-value id-dep) header)
4282 (setq replaced t))
6748645f
LMI
4283
4284 ;; Renames the existing `header' to a unique Message-ID.
4285 ((not gnus-summary-ignore-duplicates)
4286 ;; An article with this Message-ID has already been seen.
4287 ;; We rename the Message-ID.
4288 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4289 (list header))
4290 (mail-header-set-id header id))
4291
4292 ;; The last case ignores an existing entry, except it adds any
4293 ;; additional Xrefs (in case the two articles came from different
4294 ;; servers.
4295 ;; Also sets `header' to `nil' meaning that the `dependencies'
4296 ;; table was *not* modified.
4297 (t
4298 (mail-header-set-xref
4299 (car (symbol-value id-dep))
4300 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4301 "")
4302 (or (mail-header-xref header) "")))
4303 (setq header nil)))
4304
23f87bed
MB
4305 (when (and header (not replaced))
4306 ;; First check that we are not creating a References loop.
4307 (setq parent-id (gnus-parent-id (mail-header-references header)))
4308 (setq ref parent-id)
6748645f
LMI
4309 (while (and ref
4310 (setq ref-dep (intern-soft ref dependencies))
4311 (boundp ref-dep)
4312 (setq ref-header (car (symbol-value ref-dep))))
4313 (if (string= id ref)
4314 ;; Yuk! This is a reference loop. Make the article be a
4315 ;; root article.
4316 (progn
4317 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4318 (setq ref nil)
4319 (setq parent-id nil))
6748645f 4320 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4321 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4322 (if (boundp ref-dep)
4323 (setcdr (symbol-value ref-dep)
4324 (nconc (cdr (symbol-value ref-dep))
4325 (list (symbol-value id-dep))))
4326 (set ref-dep (list nil (symbol-value id-dep)))))
4327 header))
4328
23f87bed
MB
4329(defun gnus-extract-message-id-from-in-reply-to (string)
4330 (if (string-match "<[^>]+>" string)
4331 (substring string (match-beginning 0) (match-end 0))
4332 nil))
4333
eec82323
LMI
4334(defun gnus-build-sparse-threads ()
4335 (let ((headers gnus-newsgroup-headers)
16409b0b 4336 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4337 (gnus-summary-ignore-duplicates t)
eec82323 4338 header references generation relations
6748645f 4339 subject child end new-child date)
eec82323
LMI
4340 ;; First we create an alist of generations/relations, where
4341 ;; generations is how much we trust the relation, and the relation
4342 ;; is parent/child.
4343 (gnus-message 7 "Making sparse threads...")
4344 (save-excursion
4345 (nnheader-set-temp-buffer " *gnus sparse threads*")
4346 (while (setq header (pop headers))
4347 (when (and (setq references (mail-header-references header))
4348 (not (string= references "")))
4349 (insert references)
4350 (setq child (mail-header-id header)
6748645f
LMI
4351 subject (mail-header-subject header)
4352 date (mail-header-date header)
4353 generation 0)
eec82323
LMI
4354 (while (search-backward ">" nil t)
4355 (setq end (1+ (point)))
4356 (when (search-backward "<" nil t)
6748645f 4357 (setq new-child (buffer-substring (point) end))
eec82323 4358 (push (list (incf generation)
6748645f
LMI
4359 child (setq child new-child)
4360 subject date)
eec82323 4361 relations)))
6748645f
LMI
4362 (when child
4363 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4364 (erase-buffer)))
4365 (kill-buffer (current-buffer)))
4366 ;; Sort over trustworthiness.
01c52d31
MB
4367 (dolist (relation (sort relations 'car-less-than-car))
4368 (when (gnus-dependencies-add-header
4369 (make-full-mail-header
4370 gnus-reffed-article-number
4371 (nth 3 relation) "" (or (nth 4 relation) "")
4372 (nth 1 relation)
4373 (or (nth 2 relation) "") 0 0 "")
4374 gnus-newsgroup-dependencies nil)
4375 (push gnus-reffed-article-number gnus-newsgroup-limit)
4376 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4377 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4378 gnus-newsgroup-reads)
4379 (decf gnus-reffed-article-number)))
eec82323
LMI
4380 (gnus-message 7 "Making sparse threads...done")))
4381
4382(defun gnus-build-old-threads ()
4383 ;; Look at all the articles that refer back to old articles, and
4384 ;; fetch the headers for the articles that aren't there. This will
4385 ;; build complete threads - if the roots haven't been expired by the
4386 ;; server, that is.
16409b0b
GM
4387 (let ((mail-parse-charset gnus-newsgroup-charset)
4388 id heads)
eec82323
LMI
4389 (mapatoms
4390 (lambda (refs)
4391 (when (not (car (symbol-value refs)))
4392 (setq heads (cdr (symbol-value refs)))
4393 (while heads
4394 (if (memq (mail-header-number (caar heads))
4395 gnus-newsgroup-dormant)
4396 (setq heads (cdr heads))
4397 (setq id (symbol-name refs))
4398 (while (and (setq id (gnus-build-get-header id))
6748645f 4399 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4400 (setq heads nil)))))
4401 gnus-newsgroup-dependencies)))
4402
23f87bed
MB
4403(defsubst gnus-remove-odd-characters (string)
4404 "Translate STRING into something that doesn't contain weird characters."
4405 (mm-subst-char-in-string
4406 ?\r ?\-
01c52d31 4407 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4408
6748645f
LMI
4409;; This function has to be called with point after the article number
4410;; on the beginning of the line.
4411(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4412 (let ((eol (point-at-eol))
6748645f 4413 (buffer (current-buffer))
23f87bed 4414 header references in-reply-to)
6748645f
LMI
4415
4416 ;; overview: [num subject from date id refs chars lines misc]
4417 (unwind-protect
23f87bed 4418 (let (x)
6748645f
LMI
4419 (narrow-to-region (point) eol)
4420 (unless (eobp)
4421 (forward-char))
4422
4423 (setq header
4424 (make-full-mail-header
4425 number ; number
23f87bed
MB
4426 (condition-case () ; subject
4427 (gnus-remove-odd-characters
4428 (funcall gnus-decode-encoded-word-function
4429 (setq x (nnheader-nov-field))))
4430 (error x))
4431 (condition-case () ; from
4432 (gnus-remove-odd-characters
343d6628 4433 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4434 (setq x (nnheader-nov-field))))
4435 (error x))
16409b0b 4436 (nnheader-nov-field) ; date
01c52d31 4437 (nnheader-nov-read-message-id number) ; id
23f87bed 4438 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4439 (nnheader-nov-read-integer) ; chars
4440 (nnheader-nov-read-integer) ; lines
4441 (unless (eobp)
8b93df01
DL
4442 (if (looking-at "Xref: ")
4443 (goto-char (match-end 0)))
4444 (nnheader-nov-field)) ; Xref
16409b0b 4445 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4446
4447 (widen))
4448
23f87bed
MB
4449 (when (and (string= references "")
4450 (setq in-reply-to (mail-header-extra header))
4451 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4452 (mail-header-set-references
4453 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4454
6748645f
LMI
4455 (when gnus-alter-header-function
4456 (funcall gnus-alter-header-function header))
4457 (gnus-dependencies-add-header header dependencies force-new)))
4458
eec82323 4459(defun gnus-build-get-header (id)
16409b0b
GM
4460 "Look through the buffer of NOV lines and find the header to ID.
4461Enter this line into the dependencies hash table, and return
4462the id of the parent article (if any)."
eec82323
LMI
4463 (let ((deps gnus-newsgroup-dependencies)
4464 found header)
4465 (prog1
c7a91ce1 4466 (with-current-buffer nntp-server-buffer
eec82323
LMI
4467 (let ((case-fold-search nil))
4468 (goto-char (point-min))
4469 (while (and (not found)
4470 (search-forward id nil t))
4471 (beginning-of-line)
4472 (setq found (looking-at
4473 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4474 (regexp-quote id))))
4475 (or found (beginning-of-line 2)))
4476 (when found
4477 (beginning-of-line)
4478 (and
4479 (setq header (gnus-nov-parse-line
4480 (read (current-buffer)) deps))
4481 (gnus-parent-id (mail-header-references header))))))
4482 (when header
4483 (let ((number (mail-header-number header)))
4484 (push number gnus-newsgroup-limit)
4485 (push header gnus-newsgroup-headers)
4486 (if (memq number gnus-newsgroup-unselected)
4487 (progn
23f87bed
MB
4488 (setq gnus-newsgroup-unreads
4489 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4490 number))
eec82323
LMI
4491 (setq gnus-newsgroup-unselected
4492 (delq number gnus-newsgroup-unselected)))
4493 (push number gnus-newsgroup-ancient)))))))
4494
6748645f
LMI
4495(defun gnus-build-all-threads ()
4496 "Read all the headers."
4497 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4498 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4499 (dependencies gnus-newsgroup-dependencies)
4500 header article)
c7a91ce1 4501 (with-current-buffer nntp-server-buffer
6748645f
LMI
4502 (let ((case-fold-search nil))
4503 (goto-char (point-min))
4504 (while (not (eobp))
4505 (ignore-errors
4506 (setq article (read (current-buffer))
16409b0b 4507 header (gnus-nov-parse-line article dependencies)))
6748645f 4508 (when header
01c52d31 4509 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4510 (push header gnus-newsgroup-headers)
4511 (if (memq (setq article (mail-header-number header))
4512 gnus-newsgroup-unselected)
4513 (progn
23f87bed
MB
4514 (setq gnus-newsgroup-unreads
4515 (gnus-add-to-sorted-list
4516 gnus-newsgroup-unreads article))
6748645f
LMI
4517 (setq gnus-newsgroup-unselected
4518 (delq article gnus-newsgroup-unselected)))
4519 (push article gnus-newsgroup-ancient)))
4520 (forward-line 1)))))))
4521
eec82323 4522(defun gnus-summary-update-article-line (article header)
23f87bed 4523 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4524 (let* ((id (mail-header-id header))
4525 (thread (gnus-id-to-thread id)))
4526 (unless thread
4527 (error "Article in no thread"))
4528 ;; Update the thread.
4529 (setcar thread header)
4530 (gnus-summary-goto-subject article)
4531 (let* ((datal (gnus-data-find-list article))
4532 (data (car datal))
c7a91ce1 4533 (inhibit-read-only t)
eec82323
LMI
4534 (level (gnus-summary-thread-level)))
4535 (gnus-delete-line)
23f87bed
MB
4536 (let ((inserted (- (point)
4537 (progn
4538 (gnus-summary-insert-line
4539 header level nil
4540 (memq article gnus-newsgroup-undownloaded)
4541 (gnus-article-mark article)
4542 (memq article gnus-newsgroup-replied)
4543 (memq article gnus-newsgroup-expirable)
4544 ;; Only insert the Subject string when it's different
4545 ;; from the previous Subject string.
4546 (if (and
4547 gnus-show-threads
4548 (gnus-subject-equal
4549 (condition-case ()
4550 (mail-header-subject
4551 (gnus-data-header
4552 (cadr
4553 (gnus-data-find-list
4554 article
4555 (gnus-data-list t)))))
4556 ;; Error on the side of excessive subjects.
4557 (error ""))
4558 (mail-header-subject header)))
4559 ""
4560 (mail-header-subject header))
4561 nil (cdr (assq article gnus-newsgroup-scored))
4562 (memq article gnus-newsgroup-processable))
4563 (point)))))
4564 (when (cdr datal)
4565 (gnus-data-update-list
4566 (cdr datal)
4567 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4568
4569(defun gnus-summary-update-article (article &optional iheader)
4570 "Update ARTICLE in the summary buffer."
4571 (set-buffer gnus-summary-buffer)
6748645f 4572 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4573 (id (mail-header-id header))
4574 (data (gnus-data-find article))
4575 (thread (gnus-id-to-thread id))
4576 (references (mail-header-references header))
4577 (parent
4578 (gnus-id-to-thread
4579 (or (gnus-parent-id
4580 (when (and references
4581 (not (equal "" references)))
4582 references))
4583 "none")))
c7a91ce1 4584 (inhibit-read-only t)
6748645f 4585 (old (car thread)))
eec82323 4586 (when thread
eec82323 4587 (unless iheader
6748645f
LMI
4588 (setcar thread nil)
4589 (when parent
4590 (delq thread parent)))
4591 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4592 ;; Set the (possibly) new article number in the data structure.
4593 (gnus-data-set-number data (gnus-id-to-article id))
4594 (setcar thread old)
4595 nil))))
4596
6748645f
LMI
4597(defun gnus-rebuild-thread (id &optional line)
4598 "Rebuild the thread containing ID.
4599If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4600 (let ((inhibit-read-only t)
eec82323
LMI
4601 old-pos current thread data)
4602 (if (not gnus-show-threads)
4603 (setq thread (list (car (gnus-id-to-thread id))))
4604 ;; Get the thread this article is part of.
4605 (setq thread (gnus-remove-thread id)))
01c52d31 4606 (setq old-pos (point-at-bol))
eec82323 4607 (setq current (save-excursion
94384150 4608 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4609 (gnus-summary-article-number))))
4610 ;; If this is a gathered thread, we have to go some re-gathering.
4611 (when (stringp (car thread))
4612 (let ((subject (car thread))
4613 roots thr)
4614 (setq thread (cdr thread))
4615 (while thread
4616 (unless (memq (setq thr (gnus-id-to-thread
4617 (gnus-root-id
4618 (mail-header-id (caar thread)))))
4619 roots)
4620 (push thr roots))
4621 (setq thread (cdr thread)))
4622 ;; We now have all (unique) roots.
4623 (if (= (length roots) 1)
4624 ;; All the loose roots are now one solid root.
4625 (setq thread (car roots))
4626 (setq thread (cons subject (gnus-sort-threads roots))))))
4627 (let (threads)
4628 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4629 (when line
4630 (goto-char (point-min))
4631 (forward-line (1- line)))
eec82323
LMI
4632 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4633 (if gnus-show-threads
4634 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4635 (gnus-summary-prepare-unthreaded thread))
4636 (setq data (nreverse gnus-newsgroup-data))
4637 (setq threads gnus-newsgroup-threads))
4638 ;; We splice the new data into the data structure.
6748645f
LMI
4639 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4640 ;;!!! then we want to insert at the beginning of the buffer.
4641 ;;!!! That happens to be true with Gnus now, but that may
4642 ;;!!! change in the future. Perhaps.
4643 (gnus-data-enter-list
4644 (if line nil current) data (- (point) old-pos))
4645 (setq gnus-newsgroup-threads
4646 (nconc threads gnus-newsgroup-threads))
4647 (gnus-data-compute-positions))))
eec82323
LMI
4648
4649(defun gnus-number-to-header (number)
4650 "Return the header for article NUMBER."
4651 (let ((headers gnus-newsgroup-headers))
4652 (while (and headers
4653 (not (= number (mail-header-number (car headers)))))
4654 (pop headers))
4655 (when headers
4656 (car headers))))
4657
6748645f 4658(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4659 "Return the headers of the GENERATIONeth parent of HEADERS."
4660 (unless generation
4661 (setq generation 1))
a8151ef7 4662 (let ((parent t)
6748645f 4663 (headers in-headers)
a8151ef7 4664 references)
6748645f
LMI
4665 (while (and parent
4666 (not (zerop generation))
4667 (setq references (mail-header-references headers)))
4668 (setq headers (if (and references
4669 (setq parent (gnus-parent-id references)))
4670 (car (gnus-id-to-thread parent))
4671 nil))
4672 (decf generation))
4673 (and (not (eq headers in-headers))
4674 headers)))
eec82323
LMI
4675
4676(defun gnus-id-to-thread (id)
4677 "Return the (sub-)thread where ID appears."
4678 (gnus-gethash id gnus-newsgroup-dependencies))
4679
4680(defun gnus-id-to-article (id)
4681 "Return the article number of ID."
4682 (let ((thread (gnus-id-to-thread id)))
4683 (when (and thread
4684 (car thread))
4685 (mail-header-number (car thread)))))
4686
4687(defun gnus-id-to-header (id)
4688 "Return the article headers of ID."
4689 (car (gnus-id-to-thread id)))
4690
4691(defun gnus-article-displayed-root-p (article)
4692 "Say whether ARTICLE is a root(ish) article."
4693 (let ((level (gnus-summary-thread-level article))
4694 (refs (mail-header-references (gnus-summary-article-header article)))
4695 particle)
4696 (cond
4697 ((null level) nil)
4698 ((zerop level) t)
4699 ((null refs) t)
4700 ((null (gnus-parent-id refs)) t)
4701 ((and (= 1 level)
4702 (null (setq particle (gnus-id-to-article
4703 (gnus-parent-id refs))))
4704 (null (gnus-summary-thread-level particle)))))))
4705
4706(defun gnus-root-id (id)
4707 "Return the id of the root of the thread where ID appears."
4708 (let (last-id prev)
6748645f 4709 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4710 (setq last-id id
4711 id (gnus-parent-id (mail-header-references prev))))
4712 last-id))
4713
6748645f
LMI
4714(defun gnus-articles-in-thread (thread)
4715 "Return the list of articles in THREAD."
4716 (cons (mail-header-number (car thread))
4717 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4718
eec82323
LMI
4719(defun gnus-remove-thread (id &optional dont-remove)
4720 "Remove the thread that has ID in it."
6748645f 4721 (let (headers thread last-id)
eec82323 4722 ;; First go up in this thread until we find the root.
6748645f
LMI
4723 (setq last-id (gnus-root-id id)
4724 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4725 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4726 ;; been gathered into some loose thread, so we have to search
4727 ;; through the threads to find the thread we wanted.
4728 (let ((threads gnus-newsgroup-threads)
4729 sub)
4730 (while threads
4731 (setq sub (car threads))
4732 (if (stringp (car sub))
4733 ;; This is a gathered thread, so we look at the roots
4734 ;; below it to find whether this article is in this
4735 ;; gathered root.
4736 (progn
4737 (setq sub (cdr sub))
4738 (while sub
4739 (when (member (caar sub) headers)
4740 (setq thread (car threads)
4741 threads nil
4742 sub nil))
4743 (setq sub (cdr sub))))
4744 ;; It's an ordinary thread, so we check it.
4745 (when (eq (car sub) (car headers))
4746 (setq thread sub
4747 threads nil)))
4748 (setq threads (cdr threads)))
4749 ;; If this article is in no thread, then it's a root.
4750 (if thread
4751 (unless dont-remove
4752 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4753 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4754 (when thread
4755 (prog1
4756 thread ; We return this thread.
4757 (unless dont-remove
4758 (if (stringp (car thread))
4759 (progn
4760 ;; If we use dummy roots, then we have to remove the
4761 ;; dummy root as well.
4762 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4763 ;; We go to the dummy root by going to
4764 ;; the first sub-"thread", and then one line up.
4765 (gnus-summary-goto-article
4766 (mail-header-number (caadr thread)))
4767 (forward-line -1)
eec82323
LMI
4768 (gnus-delete-line)
4769 (gnus-data-compute-positions))
4770 (setq thread (cdr thread))
4771 (while thread
4772 (gnus-remove-thread-1 (car thread))
4773 (setq thread (cdr thread))))
4774 (gnus-remove-thread-1 thread))))))))
4775
4776(defun gnus-remove-thread-1 (thread)
4777 "Remove the thread THREAD recursively."
4778 (let ((number (mail-header-number (pop thread)))
4779 d)
4780 (setq thread (reverse thread))
4781 (while thread
4782 (gnus-remove-thread-1 (pop thread)))
4783 (when (setq d (gnus-data-find number))
4784 (goto-char (gnus-data-pos d))
16409b0b 4785 (gnus-summary-show-thread)
eec82323
LMI
4786 (gnus-data-remove
4787 number
01c52d31 4788 (- (point-at-bol)
eec82323 4789 (prog1
01c52d31 4790 (1+ (point-at-eol))
eec82323
LMI
4791 (gnus-delete-line)))))))
4792
4921bbdd 4793(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4794 (sort (mapcar (lambda (thread)
4795 (cons (car thread)
4796 (and (cdr thread)
4921bbdd 4797 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4798 threads) func))
4799
4921bbdd
CY
4800(defun gnus-sort-threads-loop (threads func)
4801 (let* ((superthread (cons nil threads))
4802 (stack (list (cons superthread threads)))
4803 remaining-threads thread)
4804 (while stack
4805 (setq remaining-threads (cdr (car stack)))
4806 (if remaining-threads
4807 (progn (setq thread (car remaining-threads))
4808 (setcdr (car stack) (cdr remaining-threads))
4809 (if (cdr thread)
4810 (push (cons thread (cdr thread)) stack)))
4811 (setq thread (caar stack))
4812 (setcdr thread (sort (cdr thread) func))
4813 (pop stack)))
4814 (cdr superthread)))
4815
eec82323
LMI
4816(defun gnus-sort-threads (threads)
4817 "Sort THREADS."
4818 (if (not gnus-thread-sort-functions)
4819 threads
6748645f 4820 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4821 (prog1
4822 (condition-case nil
4823 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4824 (gnus-sort-threads-recursive
4825 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4826 ;; Even after binding max-lisp-eval-depth, the recursive
4827 ;; sorter might fail for very long threads. In that case,
4828 ;; try using a (less well-tested) non-recursive sorter.
4829 (error (gnus-sort-threads-loop
4830 threads (gnus-make-sort-function
4831 gnus-thread-sort-functions))))
4832 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4833
4834(defun gnus-sort-articles (articles)
4835 "Sort ARTICLES."
4836 (when gnus-article-sort-functions
4837 (gnus-message 7 "Sorting articles...")
4838 (prog1
4839 (setq gnus-newsgroup-headers
4840 (sort articles (gnus-make-sort-function
4841 gnus-article-sort-functions)))
4842 (gnus-message 7 "Sorting articles...done"))))
4843
4844;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4845(defmacro gnus-thread-header (thread)
16409b0b
GM
4846 "Return header of first article in THREAD.
4847Note that THREAD must never, ever be anything else than a variable -
4848using some other form will lead to serious barfage."
eec82323
LMI
4849 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4850 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4851 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4852 (vector thread) 2))
4853
4854(defsubst gnus-article-sort-by-number (h1 h2)
4855 "Sort articles by article number."
4856 (< (mail-header-number h1)
4857 (mail-header-number h2)))
4858
4859(defun gnus-thread-sort-by-number (h1 h2)
4860 "Sort threads by root article number."
4861 (gnus-article-sort-by-number
4862 (gnus-thread-header h1) (gnus-thread-header h2)))
4863
23f87bed 4864(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4865 "Sort articles randomly."
23f87bed
MB
4866 (zerop (random 2)))
4867
4868(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4869 "Sort threads randomly."
23f87bed
MB
4870 (gnus-article-sort-by-random
4871 (gnus-thread-header h1) (gnus-thread-header h2)))
4872
eec82323
LMI
4873(defsubst gnus-article-sort-by-lines (h1 h2)
4874 "Sort articles by article Lines header."
4875 (< (mail-header-lines h1)
4876 (mail-header-lines h2)))
4877
4878(defun gnus-thread-sort-by-lines (h1 h2)
4879 "Sort threads by root article Lines header."
4880 (gnus-article-sort-by-lines
4881 (gnus-thread-header h1) (gnus-thread-header h2)))
4882
16409b0b
GM
4883(defsubst gnus-article-sort-by-chars (h1 h2)
4884 "Sort articles by octet length."
4885 (< (mail-header-chars h1)
4886 (mail-header-chars h2)))
4887
4888(defun gnus-thread-sort-by-chars (h1 h2)
4889 "Sort threads by root article octet length."
4890 (gnus-article-sort-by-chars
4891 (gnus-thread-header h1) (gnus-thread-header h2)))
4892
eec82323
LMI
4893(defsubst gnus-article-sort-by-author (h1 h2)
4894 "Sort articles by root author."
b4fde39f 4895 (gnus-string<
eec82323
LMI
4896 (let ((extract (funcall
4897 gnus-extract-address-components
4898 (mail-header-from h1))))
4899 (or (car extract) (cadr extract) ""))
4900 (let ((extract (funcall
4901 gnus-extract-address-components
4902 (mail-header-from h2))))
4903 (or (car extract) (cadr extract) ""))))
4904
4905(defun gnus-thread-sort-by-author (h1 h2)
4906 "Sort threads by root author."
4907 (gnus-article-sort-by-author
4908 (gnus-thread-header h1) (gnus-thread-header h2)))
4909
01c52d31
MB
4910(defsubst gnus-article-sort-by-recipient (h1 h2)
4911 "Sort articles by recipient."
4912 (gnus-string<
4913 (let ((extract (funcall
4914 gnus-extract-address-components
4915 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4916 (or (car extract) (cadr extract)))
4917 (let ((extract (funcall
4918 gnus-extract-address-components
4919 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4920 (or (car extract) (cadr extract)))))
4921
4922(defun gnus-thread-sort-by-recipient (h1 h2)
4923 "Sort threads by root recipient."
4924 (gnus-article-sort-by-recipient
4925 (gnus-thread-header h1) (gnus-thread-header h2)))
4926
eec82323
LMI
4927(defsubst gnus-article-sort-by-subject (h1 h2)
4928 "Sort articles by root subject."
b4fde39f 4929 (gnus-string<
eec82323
LMI
4930 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4931 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4932
4933(defun gnus-thread-sort-by-subject (h1 h2)
4934 "Sort threads by root subject."
4935 (gnus-article-sort-by-subject
4936 (gnus-thread-header h1) (gnus-thread-header h2)))
4937
4938(defsubst gnus-article-sort-by-date (h1 h2)
4939 "Sort articles by root article date."
16409b0b 4940 (time-less-p
eec82323
LMI
4941 (gnus-date-get-time (mail-header-date h1))
4942 (gnus-date-get-time (mail-header-date h2))))
4943
4944(defun gnus-thread-sort-by-date (h1 h2)
4945 "Sort threads by root article date."
4946 (gnus-article-sort-by-date
4947 (gnus-thread-header h1) (gnus-thread-header h2)))
4948
4949(defsubst gnus-article-sort-by-score (h1 h2)
4950 "Sort articles by root article score.
4951Unscored articles will be counted as having a score of zero."
4952 (> (or (cdr (assq (mail-header-number h1)
4953 gnus-newsgroup-scored))
4954 gnus-summary-default-score 0)
4955 (or (cdr (assq (mail-header-number h2)
4956 gnus-newsgroup-scored))
4957 gnus-summary-default-score 0)))
4958
4959(defun gnus-thread-sort-by-score (h1 h2)
4960 "Sort threads by root article score."
4961 (gnus-article-sort-by-score
4962 (gnus-thread-header h1) (gnus-thread-header h2)))
4963
4964(defun gnus-thread-sort-by-total-score (h1 h2)
4965 "Sort threads by the sum of all scores in the thread.
4966Unscored articles will be counted as having a score of zero."
4967 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4968
4969(defun gnus-thread-total-score (thread)
16409b0b 4970 ;; This function find the total score of THREAD.
23f87bed
MB
4971 (cond
4972 ((null thread)
4973 0)
4974 ((consp thread)
4975 (if (stringp (car thread))
4976 (apply gnus-thread-score-function 0
4977 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4978 (gnus-thread-total-score-1 thread)))
4979 (t
4980 (gnus-thread-total-score-1 (list thread)))))
4981
4982(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4983 "Sort threads such that the thread with the most recently arrived article comes first."
4984 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4985
4986(defun gnus-thread-highest-number (thread)
4987 "Return the highest article number in THREAD."
4988 (apply 'max (mapcar (lambda (header)
4989 (mail-header-number header))
4990 (message-flatten-list thread))))
4991
4992(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4993 "Sort threads such that the thread with the most recently dated article comes first."
4994 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4995
4996(defun gnus-thread-latest-date (thread)
4997 "Return the highest article date in THREAD."
4998 (let ((previous-time 0))
4999 (apply 'max
5000 (mapcar
5001 (lambda (header)
5002 (setq previous-time
5003 (condition-case ()
9693d3c4 5004 (gnus-float-time (mail-header-parse-date
23f87bed
MB
5005 (mail-header-date header)))
5006 (error previous-time))))
5007 (sort
5008 (message-flatten-list thread)
5009 (lambda (h1 h2)
5010 (< (mail-header-number h1)
5011 (mail-header-number h2))))))))
eec82323
LMI
5012
5013(defun gnus-thread-total-score-1 (root)
5014 ;; This function find the total score of the thread below ROOT.
5015 (setq root (car root))
5016 (apply gnus-thread-score-function
5017 (or (append
5018 (mapcar 'gnus-thread-total-score
6748645f 5019 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5020 (when (> (mail-header-number root) 0)
5021 (list (or (cdr (assq (mail-header-number root)
5022 gnus-newsgroup-scored))
5023 gnus-summary-default-score 0))))
5024 (list gnus-summary-default-score)
5025 '(0))))
5026
5027;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5028(defvar gnus-tmp-prev-subject nil)
5029(defvar gnus-tmp-false-parent nil)
5030(defvar gnus-tmp-root-expunged nil)
5031(defvar gnus-tmp-dummy-line nil)
5032
16409b0b
GM
5033(defun gnus-extra-header (type &optional header)
5034 "Return the extra header of TYPE."
5035 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5036 ""))
5037
23f87bed
MB
5038(defvar gnus-tmp-thread-tree-header-string "")
5039
5040(defcustom gnus-sum-thread-tree-root "> "
5041 "With %B spec, used for the root of a thread.
5042If nil, use subject instead."
bf247b6e 5043 :version "22.1"
ad136a7c 5044 :type '(radio (const :format "%v " nil) string)
23f87bed 5045 :group 'gnus-thread)
01c52d31 5046
23f87bed
MB
5047(defcustom gnus-sum-thread-tree-false-root "> "
5048 "With %B spec, used for a false root of a thread.
5049If nil, use subject instead."
bf247b6e 5050 :version "22.1"
ad136a7c 5051 :type '(radio (const :format "%v " nil) string)
23f87bed 5052 :group 'gnus-thread)
01c52d31 5053
23f87bed
MB
5054(defcustom gnus-sum-thread-tree-single-indent ""
5055 "With %B spec, used for a thread with just one message.
5056If nil, use subject instead."
bf247b6e 5057 :version "22.1"
ad136a7c 5058 :type '(radio (const :format "%v " nil) string)
23f87bed 5059 :group 'gnus-thread)
01c52d31 5060
23f87bed
MB
5061(defcustom gnus-sum-thread-tree-vertical "| "
5062 "With %B spec, used for drawing a vertical line."
bf247b6e 5063 :version "22.1"
23f87bed
MB
5064 :type 'string
5065 :group 'gnus-thread)
01c52d31 5066
23f87bed
MB
5067(defcustom gnus-sum-thread-tree-indent " "
5068 "With %B spec, used for indenting."
bf247b6e 5069 :version "22.1"
23f87bed
MB
5070 :type 'string
5071 :group 'gnus-thread)
01c52d31 5072
23f87bed
MB
5073(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5074 "With %B spec, used for a leaf with brothers."
bf247b6e 5075 :version "22.1"
23f87bed
MB
5076 :type 'string
5077 :group 'gnus-thread)
01c52d31 5078
23f87bed
MB
5079(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5080 "With %B spec, used for a leaf without brothers."
bf247b6e 5081 :version "22.1"
23f87bed
MB
5082 :type 'string
5083 :group 'gnus-thread)
5084
1fc34624
GM
5085(defcustom gnus-summary-display-while-building nil
5086 "If non-nil, show and update the summary buffer as it's being built.
5087If the value is t, update the buffer after every line is inserted. If
5088the value is an integer (N), update the display every N lines."
5089 :version "22.1"
5090 :group 'gnus-thread
5091 :type '(choice (const :tag "off" nil)
5092 number
5093 (const :tag "frequently" t)))
5094
eec82323
LMI
5095(defun gnus-summary-prepare-threads (threads)
5096 "Prepare summary buffer from THREADS and indentation LEVEL.
5097THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5098or a straight list of headers."
5099 (gnus-message 7 "Generating summary...")
5100
5101 (setq gnus-newsgroup-threads threads)
5102 (beginning-of-line)
5103
5104 (let ((gnus-tmp-level 0)
5105 (default-score (or gnus-summary-default-score 0))
5106 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5107 (building-line-count gnus-summary-display-while-building)
5108 (building-count (integerp gnus-summary-display-while-building))
eec82323 5109 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5110 new-roots gnus-tmp-new-adopts thread-end simp-subject
5111 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5112 gnus-tmp-replied gnus-tmp-subject-or-nil
5113 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5114 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5115 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5116 tree-stack)
eec82323 5117
23f87bed
MB
5118 (setq gnus-tmp-prev-subject nil
5119 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5120
5121 (if (vectorp (car threads))
5122 ;; If this is a straight (sic) list of headers, then a
5123 ;; threaded summary display isn't required, so we just create
5124 ;; an unthreaded one.
5125 (gnus-summary-prepare-unthreaded threads)
5126
5127 ;; Do the threaded display.
5128
23f87bed
MB
5129 (if gnus-summary-display-while-building
5130 (switch-to-buffer (buffer-name)))
eec82323
LMI
5131 (while (or threads stack gnus-tmp-new-adopts new-roots)
5132
5133 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5134 (or (not stack)
5135 (= (caar stack) 0))
5136 (not gnus-tmp-false-parent)
5137 (or gnus-tmp-new-adopts new-roots))
5138 (if gnus-tmp-new-adopts
5139 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5140 thread (list (car gnus-tmp-new-adopts))
5141 gnus-tmp-header (caar thread)
5142 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5143 (when new-roots
5144 (setq thread (list (car new-roots))
5145 gnus-tmp-header (caar thread)
5146 new-roots (cdr new-roots))))
5147
5148 (if threads
5149 ;; If there are some threads, we do them before the
5150 ;; threads on the stack.
5151 (setq thread threads
5152 gnus-tmp-header (caar thread))
5153 ;; There were no current threads, so we pop something off
5154 ;; the stack.
5155 (setq state (car stack)
5156 gnus-tmp-level (car state)
23f87bed
MB
5157 tree-stack (cadr state)
5158 thread (caddr state)
eec82323
LMI
5159 stack (cdr stack)
5160 gnus-tmp-header (caar thread))))
5161
5162 (setq gnus-tmp-false-parent nil)
5163 (setq gnus-tmp-root-expunged nil)
5164 (setq thread-end nil)
5165
5166 (if (stringp gnus-tmp-header)
5167 ;; The header is a dummy root.
5168 (cond
5169 ((eq gnus-summary-make-false-root 'adopt)
5170 ;; We let the first article adopt the rest.
5171 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5172 (cddar thread)))
5173 (setq gnus-tmp-gathered
5174 (nconc (mapcar
5175 (lambda (h) (mail-header-number (car h)))
5176 (cddar thread))
5177 gnus-tmp-gathered))
5178 (setq thread (cons (list (caar thread)
5179 (cadar thread))
5180 (cdr thread)))
5181 (setq gnus-tmp-level -1
5182 gnus-tmp-false-parent t))
5183 ((eq gnus-summary-make-false-root 'empty)
5184 ;; We print adopted articles with empty subject fields.
5185 (setq gnus-tmp-gathered
5186 (nconc (mapcar
5187 (lambda (h) (mail-header-number (car h)))
5188 (cddar thread))
5189 gnus-tmp-gathered))
5190 (setq gnus-tmp-level -1))
5191 ((eq gnus-summary-make-false-root 'dummy)
5192 ;; We remember that we probably want to output a dummy
5193 ;; root.
5194 (setq gnus-tmp-dummy-line gnus-tmp-header)
5195 (setq gnus-tmp-prev-subject gnus-tmp-header))
5196 (t
5197 ;; We do not make a root for the gathered
5198 ;; sub-threads at all.
5199 (setq gnus-tmp-level -1)))
5200
5201 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5202 subject (mail-header-subject gnus-tmp-header)
5203 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5204
5205 (cond
5206 ;; If the thread has changed subject, we might want to make
5207 ;; this subthread into a root.
5208 ((and (null gnus-thread-ignore-subject)
5209 (not (zerop gnus-tmp-level))
5210 gnus-tmp-prev-subject
23f87bed 5211 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5212 (setq new-roots (nconc new-roots (list (car thread)))
5213 thread-end t
5214 gnus-tmp-header nil))
5215 ;; If the article lies outside the current limit,
5216 ;; then we do not display it.
5217 ((not (memq number gnus-newsgroup-limit))
5218 (setq gnus-tmp-gathered
5219 (nconc (mapcar
5220 (lambda (h) (mail-header-number (car h)))
5221 (cdar thread))
5222 gnus-tmp-gathered))
5223 (setq gnus-tmp-new-adopts (if (cdar thread)
5224 (append gnus-tmp-new-adopts
5225 (cdar thread))
5226 gnus-tmp-new-adopts)
5227 thread-end t
5228 gnus-tmp-header nil)
5229 (when (zerop gnus-tmp-level)
5230 (setq gnus-tmp-root-expunged t)))
5231 ;; Perhaps this article is to be marked as read?
5232 ((and gnus-summary-mark-below
5233 (< (or (cdr (assq number gnus-newsgroup-scored))
5234 default-score)
5235 gnus-summary-mark-below)
5236 ;; Don't touch sparse articles.
5237 (not (gnus-summary-article-sparse-p number))
5238 (not (gnus-summary-article-ancient-p number)))
5239 (setq gnus-newsgroup-unreads
5240 (delq number gnus-newsgroup-unreads))
5241 (if gnus-newsgroup-auto-expire
23f87bed
MB
5242 (setq gnus-newsgroup-expirable
5243 (gnus-add-to-sorted-list
5244 gnus-newsgroup-expirable number))
eec82323
LMI
5245 (push (cons number gnus-low-score-mark)
5246 gnus-newsgroup-reads))))
5247
5248 (when gnus-tmp-header
5249 ;; We may have an old dummy line to output before this
5250 ;; article.
6748645f
LMI
5251 (when (and gnus-tmp-dummy-line
5252 (gnus-subject-equal
5253 gnus-tmp-dummy-line
5254 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5255 (gnus-summary-insert-dummy-line
5256 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5257 (setq gnus-tmp-dummy-line nil))
5258
5259 ;; Compute the mark.
5260 (setq gnus-tmp-unread (gnus-article-mark number))
5261
5262 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5263 gnus-tmp-header gnus-tmp-level)
5264 gnus-newsgroup-data)
5265
5266 ;; Actually insert the line.
5267 (setq
5268 gnus-tmp-subject-or-nil
5269 (cond
5270 ((and gnus-thread-ignore-subject
5271 gnus-tmp-prev-subject
23f87bed 5272 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5273 subject)
5274 ((zerop gnus-tmp-level)
5275 (if (and (eq gnus-summary-make-false-root 'empty)
5276 (memq number gnus-tmp-gathered)
5277 gnus-tmp-prev-subject
23f87bed 5278 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5279 gnus-summary-same-subject
5280 subject))
5281 (t gnus-summary-same-subject)))
5282 (if (and (eq gnus-summary-make-false-root 'adopt)
5283 (= gnus-tmp-level 1)
5284 (memq number gnus-tmp-gathered))
5285 (setq gnus-tmp-opening-bracket ?\<
5286 gnus-tmp-closing-bracket ?\>)
5287 (setq gnus-tmp-opening-bracket ?\[
5288 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5289 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5290 (gnus-make-thread-indent-array
5291 (max (* 2 (length gnus-thread-indent-array))
5292 gnus-tmp-level)))
eec82323
LMI
5293 (setq
5294 gnus-tmp-indentation
5295 (aref gnus-thread-indent-array gnus-tmp-level)
5296 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5297 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5298 gnus-summary-default-score 0)
5299 gnus-tmp-score-char
5300 (if (or (null gnus-summary-default-score)
5301 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5302 gnus-summary-zcore-fuzz))
23f87bed 5303 ? ;Whitespace
eec82323
LMI
5304 (if (< gnus-tmp-score gnus-summary-default-score)
5305 gnus-score-below-mark gnus-score-over-mark))
5306 gnus-tmp-replied
5307 (cond ((memq number gnus-newsgroup-processable)
5308 gnus-process-mark)
5309 ((memq number gnus-newsgroup-cached)
5310 gnus-cached-mark)
5311 ((memq number gnus-newsgroup-replied)
5312 gnus-replied-mark)
23f87bed
MB
5313 ((memq number gnus-newsgroup-forwarded)
5314 gnus-forwarded-mark)
eec82323
LMI
5315 ((memq number gnus-newsgroup-saved)
5316 gnus-saved-mark)
23f87bed
MB
5317 ((memq number gnus-newsgroup-recent)
5318 gnus-recent-mark)
5319 ((memq number gnus-newsgroup-unseen)
5320 gnus-unseen-mark)
5321 (t gnus-no-mark))
5322 gnus-tmp-downloaded
5323 (cond ((memq number gnus-newsgroup-undownloaded)
5324 gnus-undownloaded-mark)
5325 (gnus-newsgroup-agentized
5326 gnus-downloaded-mark)
5327 (t
5328 gnus-no-mark))
eec82323
LMI
5329 gnus-tmp-from (mail-header-from gnus-tmp-header)
5330 gnus-tmp-name
5331 (cond
5332 ((string-match "<[^>]+> *$" gnus-tmp-from)
5333 (setq beg-match (match-beginning 0))
23f87bed
MB
5334 (or (and (string-match "^\".+\"" gnus-tmp-from)
5335 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5336 (substring gnus-tmp-from 0 beg-match)))
5337 ((string-match "(.+)" gnus-tmp-from)
5338 (substring gnus-tmp-from
5339 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5340 (t gnus-tmp-from))
5341
5342 ;; Do the %B string
5343 gnus-tmp-thread-tree-header-string
5344 (cond
5345 ((not gnus-show-threads) "")
5346 ((zerop gnus-tmp-level)
5347 (cond ((cdar thread)
5348 (or gnus-sum-thread-tree-root subject))
5349 (gnus-tmp-new-adopts
5350 (or gnus-sum-thread-tree-false-root subject))
5351 (t
5352 (or gnus-sum-thread-tree-single-indent subject))))
5353 (t
5354 (concat (apply 'concat
5355 (mapcar (lambda (item)
5356 (if (= item 1)
5357 gnus-sum-thread-tree-vertical
5358 gnus-sum-thread-tree-indent))
5359 (cdr (reverse tree-stack))))
5360 (if (nth 1 thread)
5361 gnus-sum-thread-tree-leaf-with-other
5362 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5363 (when (string= gnus-tmp-name "")
5364 (setq gnus-tmp-name gnus-tmp-from))
5365 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5366 (setq gnus-tmp-lines -1))
5367 (if (= gnus-tmp-lines -1)
5368 (setq gnus-tmp-lines "?")
5369 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5370 (gnus-put-text-property
64763fe3
MB
5371 (point)
5372 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5373 'gnus-number number)
64763fe3
MB
5374 (when gnus-visual-p
5375 (forward-line -1)
5376 (gnus-run-hooks 'gnus-summary-update-hook)
5377 (forward-line 1))
eec82323 5378
64763fe3 5379 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5380
5381 (when (nth 1 thread)
23f87bed
MB
5382 (push (list (max 0 gnus-tmp-level)
5383 (copy-sequence tree-stack)
5384 (nthcdr 1 thread))
5385 stack))
5386 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5387 (incf gnus-tmp-level)
5388 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5389 (if gnus-summary-display-while-building
5390 (if building-count
5391 (progn
5392 ;; use a set frequency
5393 (setq building-line-count (1- building-line-count))
5394 (when (= building-line-count 0)
5395 (sit-for 0)
5396 (setq building-line-count
5397 gnus-summary-display-while-building)))
5398 ;; always
5399 (sit-for 0)))
eec82323
LMI
5400 (unless threads
5401 (setq gnus-tmp-level 0)))))
5402 (gnus-message 7 "Generating summary...done"))
5403
5404(defun gnus-summary-prepare-unthreaded (headers)
5405 "Generate an unthreaded summary buffer based on HEADERS."
5406 (let (header number mark)
5407
5408 (beginning-of-line)
5409
5410 (while headers
5411 ;; We may have to root out some bad articles...
5412 (when (memq (setq number (mail-header-number
5413 (setq header (pop headers))))
5414 gnus-newsgroup-limit)
5415 ;; Mark article as read when it has a low score.
5416 (when (and gnus-summary-mark-below
5417 (< (or (cdr (assq number gnus-newsgroup-scored))
5418 gnus-summary-default-score 0)
5419 gnus-summary-mark-below)
5420 (not (gnus-summary-article-ancient-p number)))
5421 (setq gnus-newsgroup-unreads
5422 (delq number gnus-newsgroup-unreads))
5423 (if gnus-newsgroup-auto-expire
5424 (push number gnus-newsgroup-expirable)
5425 (push (cons number gnus-low-score-mark)
5426 gnus-newsgroup-reads)))
5427
5428 (setq mark (gnus-article-mark number))
5429 (push (gnus-data-make number mark (1+ (point)) header 0)
5430 gnus-newsgroup-data)
5431 (gnus-summary-insert-line
5432 header 0 number
23f87bed 5433 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5434 mark (memq number gnus-newsgroup-replied)
5435 (memq number gnus-newsgroup-expirable)
5436 (mail-header-subject header) nil
5437 (cdr (assq number gnus-newsgroup-scored))
5438 (memq number gnus-newsgroup-processable))))))
5439
16409b0b
GM
5440(defun gnus-summary-remove-list-identifiers ()
5441 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5442 (let ((regexp (if (consp gnus-list-identifiers)
5443 (mapconcat 'identity gnus-list-identifiers " *\\|")
5444 gnus-list-identifiers))
5445 changed subject)
5446 (when regexp
01c52d31 5447 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5448 (dolist (header gnus-newsgroup-headers)
5449 (setq subject (mail-header-subject header)
5450 changed nil)
01c52d31 5451 (while (string-match regexp subject)
23f87bed 5452 (setq subject
01c52d31 5453 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5454 (substring subject (match-end 0)))
5455 changed t))
23f87bed 5456 (when changed
01c52d31
MB
5457 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5458 (setq subject
5459 (concat (substring subject 0 (match-beginning 1))
5460 (substring subject (match-end 1)))))
23f87bed
MB
5461 (mail-header-set-subject header subject))))))
5462
5463(defun gnus-fetch-headers (articles)
5464 "Fetch headers of ARTICLES."
5465 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5466 (gnus-message 5 "Fetching headers for %s..." name)
5467 (prog1
5468 (if (eq 'nov
5469 (setq gnus-headers-retrieved-by
5470 (gnus-retrieve-headers
5471 articles gnus-newsgroup-name
5472 ;; We might want to fetch old headers, but
5473 ;; not if there is only 1 article.
5474 (and (or (and
5475 (not (eq gnus-fetch-old-headers 'some))
5476 (not (numberp gnus-fetch-old-headers)))
5477 (> (length articles) 1))
5478 gnus-fetch-old-headers))))
5479 (gnus-get-newsgroup-headers-xover
5480 articles nil nil gnus-newsgroup-name t)
5481 (gnus-get-newsgroup-headers))
5482 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5483
6748645f 5484(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5485 "Select newsgroup GROUP.
6748645f
LMI
5486If READ-ALL is non-nil, all articles in the group are selected.
5487If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5488 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5489 ;;!!! Dirty hack; should be removed.
5490 (gnus-summary-ignore-duplicates
23f87bed 5491 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5492 t
5493 gnus-summary-ignore-duplicates))
5494 (info (nth 2 entry))
01c52d31 5495 charset articles fetched-articles cached)
eec82323
LMI
5496
5497 (unless (gnus-check-server
475e0e0c
GM
5498 (set (make-local-variable 'gnus-current-select-method)
5499 (gnus-find-method-for-group group)))
eec82323 5500 (error "Couldn't open server"))
01c52d31 5501 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5502
5503 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5504 (gnus-activate-group group) ; Or we can activate it...
5505 (progn ; Or we bug out.
5506 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5507 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5508 (error
5509 "Couldn't activate group %s: %s"
5510 (mm-decode-coding-string group charset)
5511 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5512
5513 (unless (gnus-request-group group t)
01c52d31
MB
5514 (when (equal major-mode 'gnus-summary-mode)
5515 (gnus-kill-buffer (current-buffer)))
5516 (error "Couldn't request group %s: %s"
5517 (mm-decode-coding-string group charset)
5518 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5519
23f87bed 5520 (when gnus-agent
54506618 5521 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5522
23f87bed
MB
5523 (setq gnus-summary-use-undownloaded-faces
5524 (gnus-agent-find-parameter
5525 group
5526 'agent-enable-undownloaded-faces)))
5527
5528 (setq gnus-newsgroup-name group
5529 gnus-newsgroup-unselected nil
5530 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5531
5532 (let ((display (gnus-group-find-parameter group 'display)))
5533 (setq gnus-newsgroup-display
5534 (cond
5535 ((not (zerop (or (car-safe read-all) 0)))
5536 ;; The user entered the group with C-u SPC/RET, let's show
5537 ;; all articles.
5538 'gnus-not-ignore)
5539 ((eq display 'all)
5540 'gnus-not-ignore)
5541 ((arrayp display)
5542 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5543 ((numberp display)
5544 ;; The following is probably the "correct" solution, but
5545 ;; it makes Gnus fetch all headers and then limit the
5546 ;; articles (which is slow), so instead we hack the
5547 ;; select-articles parameter instead. -- Simon Josefsson
5548 ;; <jas@kth.se>
5549 ;;
5550 ;; (gnus-byte-compile
5551 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5552 ;; display)))))
5553 (setq select-articles
5554 (gnus-uncompress-range
5555 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5556 (if (> tmp 0)
5557 tmp
5558 1))
5559 (cdr (gnus-active group)))))
5560 nil)
5561 (t
5562 nil))))
eec82323 5563
23f87bed 5564 (gnus-summary-setup-default-charset)
eec82323
LMI
5565
5566 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5567 (when (gnus-virtual-group-p group)
5568 (setq cached gnus-newsgroup-cached))
5569
5570 (setq gnus-newsgroup-unreads
23f87bed
MB
5571 (gnus-sorted-ndifference
5572 (gnus-sorted-ndifference gnus-newsgroup-unreads
5573 gnus-newsgroup-marked)
eec82323
LMI
5574 gnus-newsgroup-dormant))
5575
5576 (setq gnus-newsgroup-processable nil)
5577
5578 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5579
23f87bed
MB
5580 ;; Adjust and set lists of article marks.
5581 (when info
5582 (gnus-adjust-marked-articles info))
6748645f
LMI
5583 (if (setq articles select-articles)
5584 (setq gnus-newsgroup-unselected
23f87bed 5585 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5586 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5587
5588 (cond
5589 ((null articles)
5590 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5591 'quit)
5592 ((eq articles 0) nil)
5593 (t
5594 ;; Init the dependencies hash table.
5595 (setq gnus-newsgroup-dependencies
5596 (gnus-make-hashtable (length articles)))
16409b0b 5597 (gnus-set-global-variables)
eec82323 5598 ;; Retrieve the headers and read them in.
23f87bed
MB
5599
5600 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5601
5602 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5603 (when cached
5604 (setq gnus-newsgroup-cached cached))
5605
5606 ;; Suppress duplicates?
5607 (when gnus-suppress-duplicates
5608 (gnus-dup-suppress-articles))
5609
5610 ;; Set the initial limit.
5611 (setq gnus-newsgroup-limit (copy-sequence articles))
5612 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5613 (setq fetched-articles
5614 (mapcar (lambda (headers) (mail-header-number headers))
5615 gnus-newsgroup-headers))
5616 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5617 (setq gnus-newsgroup-unreads
23f87bed
MB
5618 (gnus-sorted-nintersection
5619 gnus-newsgroup-unreads fetched-articles))
5620 (gnus-compute-unseen-list)
5621
eec82323
LMI
5622 ;; Removed marked articles that do not exist.
5623 (gnus-update-missing-marks
23f87bed 5624 (gnus-sorted-difference articles fetched-articles))
eec82323 5625 ;; We might want to build some more threads first.
6748645f
LMI
5626 (when (and gnus-fetch-old-headers
5627 (eq gnus-headers-retrieved-by 'nov))
5628 (if (eq gnus-fetch-old-headers 'invisible)
5629 (gnus-build-all-threads)
5630 (gnus-build-old-threads)))
5631 ;; Let the Gnus agent mark articles as read.
5632 (when gnus-agent
5633 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5634 ;; Remove list identifiers from subject
5635 (when gnus-list-identifiers
5636 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5637 ;; Check whether auto-expire is to be done in this group.
5638 (setq gnus-newsgroup-auto-expire
5639 (gnus-group-auto-expirable-p group))
5640 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5641 (unless (and gnus-single-article-buffer
5642 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5643 (gnus-article-setup-buffer))
5644 ;; First and last article in this newsgroup.
5645 (when gnus-newsgroup-headers
5646 (setq gnus-newsgroup-begin
5647 (mail-header-number (car gnus-newsgroup-headers))
5648 gnus-newsgroup-end
5649 (mail-header-number
5650 (gnus-last-element gnus-newsgroup-headers))))
5651 ;; GROUP is successfully selected.
5652 (or gnus-newsgroup-headers t)))))
5653
23f87bed
MB
5654(defun gnus-compute-unseen-list ()
5655 ;; The `seen' marks are treated specially.
5656 (if (not gnus-newsgroup-seen)
5657 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5658 (setq gnus-newsgroup-unseen
5659 (gnus-inverse-list-range-intersection
5660 gnus-newsgroup-articles gnus-newsgroup-seen))))
5661
d09ae6ca
GM
5662(declare-function gnus-get-predicate "gnus-agent" (predicate))
5663
23f87bed
MB
5664(defun gnus-summary-display-make-predicate (display)
5665 (require 'gnus-agent)
5666 (when (= (length display) 1)
5667 (setq display (car display)))
5668 (unless gnus-summary-display-cache
5669 (dolist (elem (append '((unread . unread)
5670 (read . read)
5671 (unseen . unseen))
5672 gnus-article-mark-lists))
5673 (push (cons (cdr elem)
5674 (gnus-byte-compile
5675 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5676 gnus-summary-display-cache)))
5677 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5678 (gnus-category-predicate-cache gnus-summary-display-cache))
5679 (gnus-get-predicate display)))
5680
5681;; Uses the dynamically bound `number' variable.
9efa445f 5682(defvar number)
23f87bed
MB
5683(defun gnus-article-marked-p (type &optional article)
5684 (let ((article (or article number)))
5685 (cond
5686 ((eq type 'tick)
5687 (memq article gnus-newsgroup-marked))
5688 ((eq type 'spam)
5689 (memq article gnus-newsgroup-spam-marked))
5690 ((eq type 'unsend)
5691 (memq article gnus-newsgroup-unsendable))
5692 ((eq type 'undownload)
5693 (memq article gnus-newsgroup-undownloaded))
5694 ((eq type 'download)
5695 (memq article gnus-newsgroup-downloadable))
5696 ((eq type 'unread)
5697 (memq article gnus-newsgroup-unreads))
5698 ((eq type 'read)
5699 (memq article gnus-newsgroup-reads))
5700 ((eq type 'dormant)
5701 (memq article gnus-newsgroup-dormant) )
5702 ((eq type 'expire)
5703 (memq article gnus-newsgroup-expirable))
5704 ((eq type 'reply)
5705 (memq article gnus-newsgroup-replied))
5706 ((eq type 'killed)
5707 (memq article gnus-newsgroup-killed))
5708 ((eq type 'bookmark)
5709 (assq article gnus-newsgroup-bookmarks))
5710 ((eq type 'score)
5711 (assq article gnus-newsgroup-scored))
5712 ((eq type 'save)
5713 (memq article gnus-newsgroup-saved))
5714 ((eq type 'cache)
5715 (memq article gnus-newsgroup-cached))
5716 ((eq type 'forward)
5717 (memq article gnus-newsgroup-forwarded))
5718 ((eq type 'seen)
5719 (not (memq article gnus-newsgroup-unseen)))
5720 ((eq type 'recent)
5721 (memq article gnus-newsgroup-recent))
5722 (t t))))
5723
eec82323 5724(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5725 "Find out what articles the user wants to read."
26c9afc3 5726 (let* ((articles
eec82323
LMI
5727 ;; Select all articles if `read-all' is non-nil, or if there
5728 ;; are no unread articles.
5729 (if (or read-all
5730 (and (zerop (length gnus-newsgroup-marked))
5731 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5732 ;; Fetch all if the predicate is non-nil.
5733 gnus-newsgroup-display)
5734 ;; We want to select the headers for all the articles in
5735 ;; the group, so we select either all the active
5736 ;; articles in the group, or (if that's nil), the
5737 ;; articles in the cache.
16409b0b 5738 (or
4b70e299 5739 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5740 (let ((active (gnus-active group)))
5741 (gnus-uncompress-range
5742 (cons (max (car active)
4b70e299
MB
5743 (- (cdr active)
5744 gnus-newsgroup-maximum-articles
5745 -1))
11abff8e
MB
5746 (cdr active))))
5747 (gnus-uncompress-range (gnus-active group)))
16409b0b 5748 (gnus-cache-articles-in-group group))
23f87bed
MB
5749 ;; Select only the "normal" subset of articles.
5750 (gnus-sorted-nunion
5751 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5752 gnus-newsgroup-unreads)))
eec82323
LMI
5753 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5754 (scored (length scored-list))
5755 (number (length articles))
5756 (marked (+ (length gnus-newsgroup-marked)
5757 (length gnus-newsgroup-dormant)))
5758 (select
5759 (cond
5760 ((numberp read-all)
5761 read-all)
23f87bed
MB
5762 ((numberp gnus-newsgroup-display)
5763 gnus-newsgroup-display)
eec82323
LMI
5764 (t
5765 (condition-case ()
5766 (cond
5767 ((and (or (<= scored marked) (= scored number))
5768 (numberp gnus-large-newsgroup)
5769 (> number gnus-large-newsgroup))
23f87bed
MB
5770 (let* ((cursor-in-echo-area nil)
5771 (initial (gnus-parameter-large-newsgroup-initial
5772 gnus-newsgroup-name))
5773 (input
5774 (read-string
5775 (format
5776 "How many articles from %s (%s %d): "
01c52d31 5777 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5778 (if initial "max" "default")
5779 number)
5780 (if initial
5781 (cons (number-to-string initial)
5782 0)))))
eec82323
LMI
5783 (if (string-match "^[ \t]*$" input) number input)))
5784 ((and (> scored marked) (< scored number)
5785 (> (- scored number) 20))
5786 (let ((input
5787 (read-string
5788 (format "%s %s (%d scored, %d total): "
5789 "How many articles from"
23f87bed
MB
5790 (gnus-group-decoded-name group)
5791 scored number))))
eec82323
LMI
5792 (if (string-match "^[ \t]*$" input)
5793 number input)))
5794 (t number))
d4dfaa19
DL
5795 (quit
5796 (message "Quit getting the articles to read")
5797 nil))))))
eec82323
LMI
5798 (setq select (if (stringp select) (string-to-number select) select))
5799 (if (or (null select) (zerop select))
5800 select
5801 (if (and (not (zerop scored)) (<= (abs select) scored))
5802 (progn
5803 (setq articles (sort scored-list '<))
5804 (setq number (length articles)))
5805 (setq articles (copy-sequence articles)))
5806
5807 (when (< (abs select) number)
5808 (if (< select 0)
5809 ;; Select the N oldest articles.
5810 (setcdr (nthcdr (1- (abs select)) articles) nil)
5811 ;; Select the N most recent articles.
5812 (setq articles (nthcdr (- number select) articles))))
5813 (setq gnus-newsgroup-unselected
23f87bed 5814 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5815 (when gnus-alter-articles-to-read-function
23f87bed 5816 (setq articles
a1506d29 5817 (sort
16409b0b 5818 (funcall gnus-alter-articles-to-read-function
23f87bed 5819 gnus-newsgroup-name articles)
16409b0b 5820 '<)))
eec82323
LMI
5821 articles)))
5822
5823(defun gnus-killed-articles (killed articles)
5824 (let (out)
5825 (while articles
5826 (when (inline (gnus-member-of-range (car articles) killed))
5827 (push (car articles) out))
5828 (setq articles (cdr articles)))
5829 out))
5830
5831(defun gnus-uncompress-marks (marks)
5832 "Uncompress the mark ranges in MARKS."
5833 (let ((uncompressed '(score bookmark))
5834 out)
5835 (while marks
5836 (if (memq (caar marks) uncompressed)
5837 (push (car marks) out)
5838 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5839 (setq marks (cdr marks)))
5840 out))
5841
23f87bed
MB
5842(defun gnus-article-mark-to-type (mark)
5843 "Return the type of MARK."
5844 (or (cadr (assq mark gnus-article-special-mark-lists))
5845 'list))
5846
5847(defun gnus-article-unpropagatable-p (mark)
5848 "Return whether MARK should be propagated to back end."
5849 (memq mark gnus-article-unpropagated-mark-lists))
5850
eec82323 5851(defun gnus-adjust-marked-articles (info)
16409b0b 5852 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5853 (let* ((marked-lists (gnus-info-marks info))
5854 (active (gnus-active (gnus-info-group info)))
5855 (min (car active))
5856 (max (cdr active))
5857 (types gnus-article-mark-lists)
54506618
MB
5858 marks var articles article mark mark-type
5859 bgn end)
eec82323 5860
23f87bed
MB
5861 (dolist (marks marked-lists)
5862 (setq mark (car marks)
5863 mark-type (gnus-article-mark-to-type mark)
5864 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5865
23f87bed
MB
5866 ;; We set the variable according to the type of the marks list,
5867 ;; and then adjust the marks to a subset of the active articles.
eec82323 5868 (cond
54506618 5869 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5870 ((eq mark-type 'list)
54506618
MB
5871 ;; Simultaneously uncompress and clip to active range
5872 ;; See gnus-uncompress-range for a description of possible marks
5873 (let (l lh)
5874 (if (not (cadr marks))
5875 (set var nil)
5876 (setq articles (if (numberp (cddr marks))
5877 (list (cdr marks))
5878 (cdr marks))
5879 lh (cons nil nil)
5880 l lh)
5881
5882 (while (setq article (pop articles))
5883 (cond ((consp article)
5884 (setq bgn (max (car article) min)
5885 end (min (cdr article) max))
5886 (while (<= bgn end)
5887 (setq l (setcdr l (cons bgn nil))
5888 bgn (1+ bgn))))
5889 ((and (<= min article)
5890 (>= max article))
5891 (setq l (setcdr l (cons article nil))))))
5892 (set var (cdr lh)))))
eec82323 5893 ;; Adjust assocs.
23f87bed
MB
5894 ((eq mark-type 'tuple)
5895 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5896 (when (not (listp (cdr (symbol-value var))))
5897 (set var (list (symbol-value var))))
5898 (when (not (listp (cdr articles)))
5899 (setq articles (list articles)))
eec82323
LMI
5900 (while articles
5901 (when (or (not (consp (setq article (pop articles))))
5902 (< (car article) min)
5903 (> (car article) max))
23f87bed
MB
5904 (set var (delq article (symbol-value var))))))
5905 ;; Adjust ranges (sloppily).
5906 ((eq mark-type 'range)
5907 (cond
5908 ((eq mark 'seen)
5909 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5910 ;; It should be (seen (NUM1 . NUM2)).
5911 (when (numberp (cddr marks))
5912 (setcdr marks (list (cdr marks))))
5913 (setq articles (cdr marks))
5914 (while (and articles
5915 (or (and (consp (car articles))
5916 (> min (cdar articles)))
5917 (and (numberp (car articles))
5918 (> min (car articles)))))
5919 (pop articles))
5920 (set var articles))))))))
eec82323
LMI
5921
5922(defun gnus-update-missing-marks (missing)
6748645f 5923 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5924 (when missing
23f87bed 5925 (let (var m)
eec82323 5926 ;; Go through all types.
23f87bed
MB
5927 (dolist (elem gnus-article-mark-lists)
5928 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5929 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5930 (when (symbol-value var)
5931 ;; This list has articles. So we delete all missing
5932 ;; articles from it.
5933 (setq m missing)
5934 (while m
5935 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5936
5937(defun gnus-update-marks ()
5938 "Enter the various lists of marked articles into the newsgroup info list."
5939 (let ((types gnus-article-mark-lists)
5940 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5941 type list newmarked symbol delta-marks)
eec82323 5942 (when info
16409b0b 5943 ;; Add all marks lists to the list of marks lists.
eec82323 5944 (while (setq type (pop types))
16409b0b
GM
5945 (setq list (symbol-value
5946 (setq symbol
23f87bed 5947 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5948
16409b0b 5949 (when list
eec82323
LMI
5950 ;; Get rid of the entries of the articles that have the
5951 ;; default score.
5952 (when (and (eq (cdr type) 'score)
5953 gnus-save-score
5954 list)
5955 (let* ((arts list)
5956 (prev (cons nil list))
5957 (all prev))
5958 (while arts
5959 (if (or (not (consp (car arts)))
5960 (= (cdar arts) gnus-summary-default-score))
5961 (setcdr prev (cdr arts))
5962 (setq prev arts))
5963 (setq arts (cdr arts)))
16409b0b
GM
5964 (setq list (cdr all)))))
5965
23f87bed
MB
5966 (when (eq (cdr type) 'seen)
5967 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5968
5969 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5970 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5971
23f87bed
MB
5972 (when (and (gnus-check-backend-function
5973 'request-set-mark gnus-newsgroup-name)
5974 (not (gnus-article-unpropagatable-p (cdr type))))
5975 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5976 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5977 (add (gnus-remove-from-range
5978 (gnus-copy-sequence list) old)))
5979 (when add
5980 (push (list add 'add (list (cdr type))) delta-marks))
5981 (when del
5982 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5983
16409b0b
GM
5984 (when list
5985 (push (cons (cdr type) list) newmarked)))
5986
5987 (when delta-marks
5988 (unless (gnus-check-group gnus-newsgroup-name)
5989 (error "Can't open server for %s" gnus-newsgroup-name))
5990 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5991
eec82323
LMI
5992 ;; Enter these new marks into the info of the group.
5993 (if (nthcdr 3 info)
5994 (setcar (nthcdr 3 info) newmarked)
5995 ;; Add the marks lists to the end of the info.
5996 (when newmarked
5997 (setcdr (nthcdr 2 info) (list newmarked))))
5998
5999 ;; Cut off the end of the info if there's nothing else there.
6000 (let ((i 5))
6001 (while (and (> i 2)
6002 (not (nth i info)))
6003 (when (nthcdr (decf i) info)
6004 (setcdr (nthcdr i info) nil)))))))
6005
6006(defun gnus-set-mode-line (where)
16409b0b 6007 "Set the mode line of the article or summary buffers.
eec82323
LMI
6008If WHERE is `summary', the summary mode line format will be used."
6009 ;; Is this mode line one we keep updated?
16409b0b
GM
6010 (when (and (memq where gnus-updated-mode-lines)
6011 (symbol-value
6012 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6013 (let (mode-string)
c7a91ce1
SM
6014 ;; We evaluate this in the summary buffer since these
6015 ;; variables are buffer-local to that buffer.
6016 (with-current-buffer gnus-summary-buffer
6017 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6018 ;; below.
6019 (let* ((mformat (symbol-value
6020 (intern
6021 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6022 (gnus-tmp-group-name (gnus-mode-string-quote
6023 (gnus-group-decoded-name
6024 gnus-newsgroup-name)))
eec82323
LMI
6025 (gnus-tmp-article-number (or gnus-current-article 0))
6026 (gnus-tmp-unread gnus-newsgroup-unreads)
6027 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6028 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6029 (gnus-tmp-unread-and-unselected
6030 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6031 (zerop gnus-tmp-unselected))
6032 "")
6033 ((zerop gnus-tmp-unselected)
6034 (format "{%d more}" gnus-tmp-unread-and-unticked))
6035 (t (format "{%d(+%d) more}"
6036 gnus-tmp-unread-and-unticked
6037 gnus-tmp-unselected))))
6038 (gnus-tmp-subject
6039 (if (and gnus-current-headers
6040 (vectorp gnus-current-headers))
6041 (gnus-mode-string-quote
6042 (mail-header-subject gnus-current-headers))
6043 ""))
6044 bufname-length max-len
23f87bed 6045 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6046 (setq mode-string (eval mformat))
6047 (setq bufname-length (if (string-match "%b" mode-string)
6048 (- (length
6049 (buffer-name
6050 (if (eq where 'summary)
6051 nil
6052 (get-buffer gnus-article-buffer))))
6053 2)
6054 0))
6055 (setq max-len (max 4 (if gnus-mode-non-string-length
6056 (- (window-width)
6057 gnus-mode-non-string-length
6058 bufname-length)
6059 (length mode-string))))
6060 ;; We might have to chop a bit of the string off...
6061 (when (> (length mode-string) max-len)
6062 (setq mode-string
16409b0b 6063 (concat (truncate-string-to-width mode-string (- max-len 3))
eec82323
LMI
6064 "...")))
6065 ;; Pad the mode string a bit.
6066 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
6067 ;; Update the mode line.
6068 (setq mode-line-buffer-identification
6069 (gnus-mode-line-buffer-identification (list mode-string)))
6070 (set-buffer-modified-p t))))
6071
6072(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6073 "Go through the HEADERS list and add all Xrefs to a hash table.
6074The resulting hash table is returned, or nil if no Xrefs were found."
6075 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6076 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6077 (xref-hashtb (gnus-make-hashtable))
6078 start group entry number xrefs header)
6079 (while headers
6080 (setq header (pop headers))
6081 (when (and (setq xrefs (mail-header-xref header))
6082 (not (memq (setq number (mail-header-number header))
6083 unreads)))
6084 (setq start 0)
6085 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6086 (setq start (match-end 0))
6087 (setq group (if prefix
6088 (concat prefix (substring xrefs (match-beginning 1)
6089 (match-end 1)))
6090 (substring xrefs (match-beginning 1) (match-end 1))))
6091 (setq number
e9bd5782 6092 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6093 (match-end 2))))
6094 (if (setq entry (gnus-gethash group xref-hashtb))
6095 (setcdr entry (cons number (cdr entry)))
6096 (gnus-sethash group (cons number nil) xref-hashtb)))))
6097 (and start xref-hashtb)))
6098
6099(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6100 "Look through all the headers and mark the Xrefs as read."
6101 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6102 name info xref-hashtb idlist method nth4)
eec82323
LMI
6103 (save-excursion
6104 (set-buffer gnus-group-buffer)
6105 (when (setq xref-hashtb
6106 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6107 (mapatoms
6108 (lambda (group)
6109 (unless (string= from-newsgroup (setq name (symbol-name group)))
6110 (setq idlist (symbol-value group))
6111 ;; Dead groups are not updated.
6112 (and (prog1
01c52d31 6113 (setq info (gnus-get-info name))
eec82323
LMI
6114 (when (stringp (setq nth4 (gnus-info-method info)))
6115 (setq nth4 (gnus-server-to-method nth4))))
6116 ;; Only do the xrefs if the group has the same
6117 ;; select method as the group we have just read.
6118 (or (gnus-methods-equal-p
6119 nth4 (gnus-find-method-for-group from-newsgroup))
6120 virtual
6121 (equal nth4 (setq method (gnus-find-method-for-group
6122 from-newsgroup)))
6123 (and (equal (car nth4) (car method))
6124 (equal (nth 1 nth4) (nth 1 method))))
6125 gnus-use-cross-reference
6126 (or (not (eq gnus-use-cross-reference t))
6127 virtual
6128 ;; Only do cross-references on subscribed
6129 ;; groups, if that is what is wanted.
6130 (<= (gnus-info-level info) gnus-level-subscribed))
6131 (gnus-group-make-articles-read name idlist))))
6132 xref-hashtb)))))
6133
6748645f 6134(defun gnus-compute-read-articles (group articles)
01c52d31 6135 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6136 (info (nth 2 entry))
6137 (active (gnus-active group))
6138 ninfo)
6139 (when entry
16409b0b 6140 ;; First peel off all invalid article numbers.
6748645f
LMI
6141 (when active
6142 (let ((ids articles)
6143 id first)
6144 (while (setq id (pop ids))
6145 (when (and first (> id (cdr active)))
6146 ;; We'll end up in this situation in one particular
6147 ;; obscure situation. If you re-scan a group and get
6148 ;; a new article that is cross-posted to a different
6149 ;; group that has not been re-scanned, you might get
6150 ;; crossposted article that has a higher number than
6151 ;; Gnus believes possible. So we re-activate this
6152 ;; group as well. This might mean doing the
6153 ;; crossposting thingy will *increase* the number
6154 ;; of articles in some groups. Tsk, tsk.
6155 (setq active (or (gnus-activate-group group) active)))
6156 (when (or (> id (cdr active))
6157 (< id (car active)))
6158 (setq articles (delq id articles))))))
6159 ;; If the read list is nil, we init it.
6160 (if (and active
6161 (null (gnus-info-read info))
6162 (> (car active) 1))
6163 (setq ninfo (cons 1 (1- (car active))))
6164 (setq ninfo (gnus-info-read info)))
6165 ;; Then we add the read articles to the range.
6166 (gnus-add-to-range
6167 ninfo (setq articles (sort articles '<))))))
6168
eec82323
LMI
6169(defun gnus-group-make-articles-read (group articles)
6170 "Update the info of GROUP to say that ARTICLES are read."
6171 (let* ((num 0)
01c52d31 6172 (entry (gnus-group-entry group))
eec82323
LMI
6173 (info (nth 2 entry))
6174 (active (gnus-active group))
6175 range)
6748645f
LMI
6176 (when entry
6177 (setq range (gnus-compute-read-articles group articles))
01c52d31 6178 (with-current-buffer gnus-group-buffer
6748645f
LMI
6179 (gnus-undo-register
6180 `(progn
6181 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6182 (gnus-info-set-read ',info ',(gnus-info-read info))
6183 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6184 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6185 (gnus-group-update-group ,group t))))
6186 ;; Add the read articles to the range.
6187 (gnus-info-set-read info range)
23f87bed 6188 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6189 ;; Then we have to re-compute how many unread
6190 ;; articles there are in this group.
6191 (when active
6192 (cond
6193 ((not range)
6194 (setq num (- (1+ (cdr active)) (car active))))
6195 ((not (listp (cdr range)))
6196 (setq num (- (cdr active) (- (1+ (cdr range))
6197 (car range)))))
6198 (t
6199 (while range
6200 (if (numberp (car range))
6201 (setq num (1+ num))
6202 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6203 (setq range (cdr range)))
6204 (setq num (- (cdr active) num))))
6205 ;; Update the number of unread articles.
6206 (setcar entry num)
6207 ;; Update the group buffer.
23f87bed
MB
6208 (unless (gnus-ephemeral-group-p group)
6209 (gnus-group-update-group group t))))))
eec82323 6210
eec82323
LMI
6211(defvar gnus-newsgroup-none-id 0)
6212
6213(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6214 (let ((cur nntp-server-buffer)
6215 (dependencies
6216 (or dependencies
01c52d31
MB
6217 (with-current-buffer gnus-summary-buffer
6218 gnus-newsgroup-dependencies)))
6219 headers id end ref number
16409b0b
GM
6220 (mail-parse-charset gnus-newsgroup-charset)
6221 (mail-parse-ignored-charsets
c7a91ce1
SM
6222 (save-current-buffer (condition-case nil
6223 (set-buffer gnus-summary-buffer)
6224 (error))
6225 gnus-newsgroup-ignored-charsets)))
6226 (with-current-buffer nntp-server-buffer
eec82323
LMI
6227 ;; Translate all TAB characters into SPACE characters.
6228 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6229 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6230 (ietf-drums-unfold-fws)
6748645f 6231 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6232 (let ((case-fold-search t)
6748645f 6233 in-reply-to header p lines chars)
eec82323 6234 (goto-char (point-min))
01ccbb85 6235 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6236 ;; do not begin with 2 or 3.
6237 (while (re-search-forward "^[23][0-9]+ " nil t)
6238 (setq id nil
6239 ref nil)
6240 ;; This implementation of this function, with nine
6241 ;; search-forwards instead of the one re-search-forward and
6242 ;; a case (which basically was the old function) is actually
01ccbb85 6243 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6244 ;; can't have everything, I guess. Speed and elegance
6245 ;; doesn't always go hand in hand.
6246 (setq
6247 header
6248 (vector
6249 ;; Number.
6250 (prog1
01c52d31 6251 (setq number (read cur))
eec82323
LMI
6252 (end-of-line)
6253 (setq p (point))
6254 (narrow-to-region (point)
6255 (or (and (search-forward "\n.\n" nil t)
6256 (- (point) 2))
6257 (point))))
6258 ;; Subject.
6259 (progn
6260 (goto-char p)
23f87bed 6261 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6262 (funcall gnus-decode-encoded-word-function
6263 (nnheader-header-value))
2bd3dcae 6264 "(none)"))
eec82323
LMI
6265 ;; From.
6266 (progn
6267 (goto-char p)
23f87bed 6268 (if (search-forward "\nfrom:" nil t)
343d6628 6269 (funcall gnus-decode-encoded-address-function
16409b0b 6270 (nnheader-header-value))
2bd3dcae 6271 "(nobody)"))
eec82323
LMI
6272 ;; Date.
6273 (progn
6274 (goto-char p)
23f87bed 6275 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6276 (nnheader-header-value) ""))
6277 ;; Message-ID.
6278 (progn
6279 (goto-char p)
6748645f
LMI
6280 (setq id (if (re-search-forward
6281 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6282 ;; We do it this way to make sure the Message-ID
6283 ;; is (somewhat) syntactically valid.
6284 (buffer-substring (match-beginning 1)
6285 (match-end 1))
eec82323
LMI
6286 ;; If there was no message-id, we just fake one
6287 ;; to make subsequent routines simpler.
01c52d31 6288 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6289 ;; References.
6290 (progn
6291 (goto-char p)
23f87bed 6292 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6293 (progn
6294 (setq end (point))
6295 (prog1
6296 (nnheader-header-value)
6297 (setq ref
6298 (buffer-substring
6299 (progn
6300 (end-of-line)
6301 (search-backward ">" end t)
6302 (1+ (point)))
6303 (progn
6304 (search-backward "<" end t)
6305 (point))))))
6306 ;; Get the references from the in-reply-to header if there
6307 ;; were no references and the in-reply-to header looks
6308 ;; promising.
23f87bed 6309 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6310 (setq in-reply-to (nnheader-header-value))
6311 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6312 (let (ref2)
6313 (setq ref (substring in-reply-to (match-beginning 0)
6314 (match-end 0)))
6315 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6316 (setq ref2 (substring in-reply-to (match-beginning 0)
6317 (match-end 0)))
6318 (when (> (length ref2) (length ref))
6319 (setq ref ref2)))
6320 ref)
eec82323
LMI
6321 (setq ref nil))))
6322 ;; Chars.
6748645f
LMI
6323 (progn
6324 (goto-char p)
6325 (if (search-forward "\nchars: " nil t)
6326 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6327 chars -1)
6328 -1))
eec82323
LMI
6329 ;; Lines.
6330 (progn
6331 (goto-char p)
6332 (if (search-forward "\nlines: " nil t)
a8151ef7 6333 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6334 lines -1)
6335 -1))
eec82323
LMI
6336 ;; Xref.
6337 (progn
6338 (goto-char p)
23f87bed 6339 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6340 (nnheader-header-value)))
6341 ;; Extra.
6342 (when gnus-extra-headers
6343 (let ((extra gnus-extra-headers)
6344 out)
6345 (while extra
6346 (goto-char p)
6347 (when (search-forward
23f87bed 6348 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6349 (push (cons (car extra) (nnheader-header-value))
6350 out))
6351 (pop extra))
6352 out))))
eec82323
LMI
6353 (when (equal id ref)
6354 (setq ref nil))
6748645f
LMI
6355
6356 (when gnus-alter-header-function
6357 (funcall gnus-alter-header-function header)
6358 (setq id (mail-header-id header)
6359 ref (gnus-parent-id (mail-header-references header))))
6360
6361 (when (setq header
6362 (gnus-dependencies-add-header
6363 header dependencies force-new))
eec82323
LMI
6364 (push header headers))
6365 (goto-char (point-max))
6366 (widen))
6367 (nreverse headers)))))
6368
eec82323
LMI
6369;; Goes through the xover lines and returns a list of vectors
6370(defun gnus-get-newsgroup-headers-xover (sequence &optional
6371 force-new dependencies
6372 group also-fetch-heads)
16409b0b
GM
6373 "Parse the news overview data in the server buffer.
6374Return a list of headers that match SEQUENCE (see
6375`nntp-retrieve-headers')."
eec82323
LMI
6376 ;; Get the Xref when the users reads the articles since most/some
6377 ;; NNTP servers do not include Xrefs when using XOVER.
6378 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6379 (let ((mail-parse-charset gnus-newsgroup-charset)
6380 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6381 (cur nntp-server-buffer)
eec82323 6382 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6383 (allp (cond
6384 ((eq gnus-read-all-available-headers t)
6385 t)
14e6dc54
MB
6386 ((and (stringp gnus-read-all-available-headers)
6387 group)
23f87bed
MB
6388 (string-match gnus-read-all-available-headers group))
6389 (t
6390 nil)))
eec82323 6391 number headers header)
c7a91ce1 6392 (with-current-buffer nntp-server-buffer
16409b0b 6393 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6394 ;; Allow the user to mangle the headers before parsing them.
6748645f 6395 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6396 (goto-char (point-min))
23f87bed
MB
6397 (gnus-parse-without-error
6398 (while (and (or sequence allp)
6399 (not (eobp)))
6400 (setq number (read cur))
6401 (when (not allp)
6402 (while (and sequence
6403 (< (car sequence) number))
6404 (setq sequence (cdr sequence))))
6405 (when (and (or allp
6406 (and sequence
6407 (eq number (car sequence))))
6408 (progn
6409 (setq sequence (cdr sequence))
6410 (setq header (inline
6411 (gnus-nov-parse-line
6412 number dependencies force-new)))))
6413 (push header headers))
6414 (forward-line 1)))
eec82323
LMI
6415 ;; A common bug in inn is that if you have posted an article and
6416 ;; then retrieves the active file, it will answer correctly --
6417 ;; the new article is included. However, a NOV entry for the
6418 ;; article may not have been generated yet, so this may fail.
6419 ;; We work around this problem by retrieving the last few
6420 ;; headers using HEAD.
6421 (if (or (not also-fetch-heads)
6422 (not sequence))
6423 ;; We (probably) got all the headers.
6424 (nreverse headers)
6425 (let ((gnus-nov-is-evil t))
6426 (nconc
6427 (nreverse headers)
23f87bed 6428 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6429 (gnus-get-newsgroup-headers))))))))
6430
6431(defun gnus-article-get-xrefs ()
6432 "Fill in the Xref value in `gnus-current-headers', if necessary.
6433This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6434 (let ((headers (with-current-buffer gnus-summary-buffer
6435 gnus-current-headers)))
eec82323
LMI
6436 (or (not gnus-use-cross-reference)
6437 (not headers)
6438 (and (mail-header-xref headers)
6439 (not (string= (mail-header-xref headers) "")))
6440 (let ((case-fold-search t)
6441 xref)
6442 (save-restriction
6443 (nnheader-narrow-to-headers)
6444 (goto-char (point-min))
16409b0b
GM
6445 (when (or (and (not (eobp))
6446 (eq (downcase (char-after)) ?x)
eec82323
LMI
6447 (looking-at "Xref:"))
6448 (search-forward "\nXref:" nil t))
6449 (goto-char (1+ (match-end 0)))
01c52d31 6450 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6451 (mail-header-set-xref headers xref)))))))
6452
6453(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6454 "Find article ID and insert the summary line for that article.
6455OLD-HEADER can either be a header or a line number to insert
6456the subject line on."
6457 (let* ((line (and (numberp old-header) old-header))
6458 (old-header (and (vectorp old-header) old-header))
6459 (header (cond ((and old-header use-old-header)
16409b0b
GM
6460 old-header)
6461 ((and (numberp id)
6462 (gnus-number-to-header id))
6463 (gnus-number-to-header id))
6464 (t
6465 (gnus-read-header id))))
6466 (number (and (numberp id) id))
6467 d)
eec82323
LMI
6468 (when header
6469 ;; Rebuild the thread that this article is part of and go to the
6470 ;; article we have fetched.
6471 (when (and (not gnus-show-threads)
6472 old-header)
6748645f
LMI
6473 (when (and number
6474 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6475 (goto-char (gnus-data-pos d))
6476 (gnus-data-remove
6477 number
01c52d31 6478 (- (point-at-bol)
eec82323 6479 (prog1
01c52d31 6480 (1+ (point-at-eol))
eec82323 6481 (gnus-delete-line))))))
23f87bed
MB
6482 ;; Remove list identifiers from subject.
6483 (when gnus-list-identifiers
6484 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6485 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6486 (when old-header
6487 (mail-header-set-number header (mail-header-number old-header)))
6488 (setq gnus-newsgroup-sparse
6489 (delq (setq number (mail-header-number header))
6490 gnus-newsgroup-sparse))
6491 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6492 (push number gnus-newsgroup-limit)
6493 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6494 (gnus-summary-goto-subject number nil t))
6495 (when (and (numberp number)
6496 (> number 0))
6497 ;; We have to update the boundaries even if we can't fetch the
6498 ;; article if ID is a number -- so that the next `P' or `N'
6499 ;; command will fetch the previous (or next) article even
6500 ;; if the one we tried to fetch this time has been canceled.
6501 (when (> number gnus-newsgroup-end)
6502 (setq gnus-newsgroup-end number))
6503 (when (< number gnus-newsgroup-begin)
6504 (setq gnus-newsgroup-begin number))
6505 (setq gnus-newsgroup-unselected
6506 (delq number gnus-newsgroup-unselected)))
6507 ;; Report back a success?
6508 (and header (mail-header-number header))))
6509
6510;;; Process/prefix in the summary buffer
6511
6512(defun gnus-summary-work-articles (n)
6748645f
LMI
6513 "Return a list of articles to be worked upon.
6514The prefix argument, the list of process marked articles, and the
6515current article will be taken into consideration."
c7a91ce1 6516 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6517 (cond
6518 (n
6519 ;; A numerical prefix has been given.
6520 (setq n (prefix-numeric-value n))
6521 (let ((backward (< n 0))
6522 (n (abs (prefix-numeric-value n)))
6523 articles article)
6524 (save-excursion
6525 (while
6526 (and (> n 0)
6527 (push (setq article (gnus-summary-article-number))
6528 articles)
6529 (if backward
6530 (gnus-summary-find-prev nil article)
6531 (gnus-summary-find-next nil article)))
6532 (decf n)))
6533 (nreverse articles)))
6534 ((and (gnus-region-active-p) (mark))
6535 (message "region active")
6536 ;; Work on the region between point and mark.
6537 (let ((max (max (point) (mark)))
6538 articles article)
6539 (save-excursion
7dafe00b 6540 (goto-char (min (point) (mark)))
6748645f
LMI
6541 (while
6542 (and
6543 (push (setq article (gnus-summary-article-number)) articles)
6544 (gnus-summary-find-next nil article)
6545 (< (point) max)))
6546 (nreverse articles))))
6547 (gnus-newsgroup-processable
6548 ;; There are process-marked articles present.
6549 ;; Save current state.
6550 (gnus-summary-save-process-mark)
6551 ;; Return the list.
6552 (reverse gnus-newsgroup-processable))
6553 (t
6554 ;; Just return the current article.
6555 (list (gnus-summary-article-number))))))
6556
6557(defmacro gnus-summary-iterate (arg &rest forms)
6558 "Iterate over the process/prefixed articles and do FORMS.
6559ARG is the interactive prefix given to the command. FORMS will be
6560executed with point over the summary line of the articles."
6561 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6562 `(let ((,articles (gnus-summary-work-articles ,arg)))
6563 (while ,articles
6564 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6565 ,@forms
6566 (pop ,articles)))))
6748645f
LMI
6567
6568(put 'gnus-summary-iterate 'lisp-indent-function 1)
6569(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6570
6571(defun gnus-summary-save-process-mark ()
6572 "Push the current set of process marked articles on the stack."
6573 (interactive)
6574 (push (copy-sequence gnus-newsgroup-processable)
6575 gnus-newsgroup-process-stack))
6576
6577(defun gnus-summary-kill-process-mark ()
6578 "Push the current set of process marked articles on the stack and unmark."
6579 (interactive)
6580 (gnus-summary-save-process-mark)
6581 (gnus-summary-unmark-all-processable))
6582
6583(defun gnus-summary-yank-process-mark ()
6584 "Pop the last process mark state off the stack and restore it."
6585 (interactive)
6586 (unless gnus-newsgroup-process-stack
6587 (error "Empty mark stack"))
6588 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6589
6590(defun gnus-summary-process-mark-set (set)
6591 "Make SET into the current process marked articles."
6592 (gnus-summary-unmark-all-processable)
01c52d31 6593 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6594
6595;;; Searching and stuff
6596
6597(defun gnus-summary-search-group (&optional backward use-level)
6598 "Search for next unread newsgroup.
6599If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6600 (with-current-buffer gnus-group-buffer
eec82323
LMI
6601 (when (gnus-group-search-forward
6602 backward nil (if use-level (gnus-group-group-level) nil))
6603 (gnus-group-group-name))))
6604
6605(defun gnus-summary-best-group (&optional exclude-group)
6606 "Find the name of the best unread group.
6607If EXCLUDE-GROUP, do not go to this group."
01c52d31 6608 (with-current-buffer gnus-group-buffer
eec82323
LMI
6609 (save-excursion
6610 (gnus-group-best-unread-group exclude-group))))
6611
23f87bed
MB
6612(defun gnus-summary-find-next (&optional unread article backward)
6613 (if backward
6614 (gnus-summary-find-prev unread article)
eec82323
LMI
6615 (let* ((dummy (gnus-summary-article-intangible-p))
6616 (article (or article (gnus-summary-article-number)))
23f87bed 6617 (data (gnus-data-find-list article))
eec82323
LMI
6618 result)
6619 (when (and (not dummy)
6620 (or (not gnus-summary-check-current)
6621 (not unread)
23f87bed
MB
6622 (not (gnus-data-unread-p (car data)))))
6623 (setq data (cdr data)))
eec82323
LMI
6624 (when (setq result
6625 (if unread
6626 (progn
23f87bed
MB
6627 (while data
6628 (unless (memq (gnus-data-number (car data))
6629 (cond
6630 ((eq gnus-auto-goto-ignores
6631 'always-undownloaded)
6632 gnus-newsgroup-undownloaded)
6633 (gnus-plugged
6634 nil)
6635 ((eq gnus-auto-goto-ignores
6636 'unfetched)
6637 gnus-newsgroup-unfetched)
6638 ((eq gnus-auto-goto-ignores
6639 'undownloaded)
6640 gnus-newsgroup-undownloaded)))
6641 (when (gnus-data-unread-p (car data))
6642 (setq result (car data)
6643 data nil)))
6644 (setq data (cdr data)))
eec82323 6645 result)
23f87bed 6646 (car data)))
eec82323
LMI
6647 (goto-char (gnus-data-pos result))
6648 (gnus-data-number result)))))
6649
6650(defun gnus-summary-find-prev (&optional unread article)
6651 (let* ((eobp (eobp))
6652 (article (or article (gnus-summary-article-number)))
23f87bed 6653 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6654 result)
6655 (when (and (not eobp)
6656 (or (not gnus-summary-check-current)
6657 (not unread)
23f87bed
MB
6658 (not (gnus-data-unread-p (car data)))))
6659 (setq data (cdr data)))
eec82323
LMI
6660 (when (setq result
6661 (if unread
6662 (progn
23f87bed
MB
6663 (while data
6664 (unless (memq (gnus-data-number (car data))
6665 (cond
6666 ((eq gnus-auto-goto-ignores
6667 'always-undownloaded)
6668 gnus-newsgroup-undownloaded)
6669 (gnus-plugged
6670 nil)
6671 ((eq gnus-auto-goto-ignores
6672 'unfetched)
6673 gnus-newsgroup-unfetched)
6674 ((eq gnus-auto-goto-ignores
6675 'undownloaded)
6676 gnus-newsgroup-undownloaded)))
6677 (when (gnus-data-unread-p (car data))
6678 (setq result (car data)
6679 data nil)))
6680 (setq data (cdr data)))
eec82323 6681 result)
23f87bed 6682 (car data)))
eec82323
LMI
6683 (goto-char (gnus-data-pos result))
6684 (gnus-data-number result))))
6685
6686(defun gnus-summary-find-subject (subject &optional unread backward article)
6687 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6688 (article (or article (gnus-summary-article-number)))
6689 (articles (gnus-data-list backward))
6690 (arts (gnus-data-find-list article articles))
6691 result)
6692 (when (or (not gnus-summary-check-current)
6693 (not unread)
6694 (not (gnus-data-unread-p (car arts))))
6695 (setq arts (cdr arts)))
6696 (while arts
6697 (and (or (not unread)
6698 (gnus-data-unread-p (car arts)))
6699 (vectorp (gnus-data-header (car arts)))
6700 (gnus-subject-equal
6701 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6702 (setq result (car arts)
6703 arts nil))
6704 (setq arts (cdr arts)))
6705 (and result
6706 (goto-char (gnus-data-pos result))
6707 (gnus-data-number result))))
6708
6709(defun gnus-summary-search-forward (&optional unread subject backward)
6710 "Search forward for an article.
6711If UNREAD, look for unread articles. If SUBJECT, look for
6712articles with that subject. If BACKWARD, search backward instead."
6713 (cond (subject (gnus-summary-find-subject subject unread backward))
6714 (backward (gnus-summary-find-prev unread))
6715 (t (gnus-summary-find-next unread))))
6716
6717(defun gnus-recenter (&optional n)
6718 "Center point in window and redisplay frame.
6719Also do horizontal recentering."
6720 (interactive "P")
6721 (when (and gnus-auto-center-summary
6722 (not (eq gnus-auto-center-summary 'vertical)))
6723 (gnus-horizontal-recenter))
5aa75bd8
JL
6724 (if (fboundp 'recenter-top-bottom)
6725 (recenter-top-bottom n)
6726 (recenter n)))
6727
6728(put 'gnus-recenter 'isearch-scroll t)
eec82323 6729
7b47345b
AS
6730(defun gnus-forward-line-ignore-invisible (n)
6731 "Move N lines forward (backward if N is negative).
6732Like forward-line, but skip over (and don't count) invisible lines."
6733 (let (done)
6734 (while (and (> n 0) (not done))
6735 ;; If the following character is currently invisible,
6736 ;; skip all characters with that same `invisible' property value.
6737 (while (invisible-p (point))
6738 (goto-char (next-char-property-change (point))))
6739 (forward-line 1)
6740 (if (eobp)
6741 (setq done t)
6742 (setq n (1- n))))
6743 (while (and (< n 0) (not done))
6744 (forward-line -1)
6745 (if (bobp) (setq done t)
6746 (setq n (1+ n))
6747 (while (and (not (bobp)) (invisible-p (1- (point))))
6748 (goto-char (previous-char-property-change (point))))))))
6749
eec82323
LMI
6750(defun gnus-summary-recenter ()
6751 "Center point in the summary window.
6752If `gnus-auto-center-summary' is nil, or the article buffer isn't
6753displayed, no centering will be performed."
6754 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6755 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6756 (interactive)
23f87bed
MB
6757 ;; The user has to want it.
6758 (when gnus-auto-center-summary
6759 (let* ((top (cond ((< (window-height) 4) 0)
6760 ((< (window-height) 7) 1)
6761 (t (if (numberp gnus-auto-center-summary)
6762 gnus-auto-center-summary
01c52d31 6763 (/ (1- (window-height)) 2)))))
23f87bed 6764 (height (1- (window-height)))
7b47345b
AS
6765 (bottom (save-excursion
6766 (goto-char (point-max))
6767 (gnus-forward-line-ignore-invisible (- height))
6768 (point)))
23f87bed 6769 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6770 (when (get-buffer-window gnus-article-buffer)
6771 ;; Only do recentering when the article buffer is displayed,
6772 ;; Set the window start to either `bottom', which is the biggest
6773 ;; possible valid number, or the second line from the top,
6774 ;; whichever is the least.
7b47345b
AS
6775 (let ((top-pos (save-excursion
6776 (gnus-forward-line-ignore-invisible (- top))
6777 (point))))
db7ebd73
MB
6778 (if (> bottom top-pos)
6779 ;; Keep the second line from the top visible
01c52d31 6780 (set-window-start window top-pos)
db7ebd73
MB
6781 ;; Try to keep the bottom line visible; if it's partially
6782 ;; obscured, either scroll one more line to make it fully
6783 ;; visible, or revert to using TOP-POS.
6784 (save-excursion
6785 (goto-char (point-max))
7b47345b 6786 (gnus-forward-line-ignore-invisible -1)
db7ebd73
MB
6787 (let ((last-line-start (point)))
6788 (goto-char bottom)
6789 (set-window-start window (point) t)
6790 (when (not (pos-visible-in-window-p last-line-start window))
7b47345b 6791 (gnus-forward-line-ignore-invisible 1)
db7ebd73 6792 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6793 ;; Do horizontal recentering while we're at it.
6794 (when (and (get-buffer-window (current-buffer) t)
6795 (not (eq gnus-auto-center-summary 'vertical)))
6796 (let ((selected (selected-window)))
6797 (select-window (get-buffer-window (current-buffer) t))
6798 (gnus-summary-position-point)
6799 (gnus-horizontal-recenter)
6800 (select-window selected))))))
6801
6802(defun gnus-summary-jump-to-group (newsgroup)
6803 "Move point to NEWSGROUP in group mode buffer."
6804 ;; Keep update point of group mode buffer if visible.
6805 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6806 (save-window-excursion
6807 ;; Take care of tree window mode.
6808 (when (get-buffer-window gnus-group-buffer)
6809 (pop-to-buffer gnus-group-buffer))
6810 (gnus-group-jump-to-group newsgroup))
6811 (save-excursion
6812 ;; Take care of tree window mode.
c7a91ce1 6813 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6814 (pop-to-buffer gnus-group-buffer)
6815 (set-buffer gnus-group-buffer))
6816 (gnus-group-jump-to-group newsgroup))))
6817
6818;; This function returns a list of article numbers based on the
6819;; difference between the ranges of read articles in this group and
6820;; the range of active articles.
6821(defun gnus-list-of-unread-articles (group)
6822 (let* ((read (gnus-info-read (gnus-get-info group)))
6823 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6824 (last (or (cdr active)
6825 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6826 (bottom (if gnus-newsgroup-maximum-articles
6827 (max (car active)
6828 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6829 (car active)))
eec82323
LMI
6830 first nlast unread)
6831 ;; If none are read, then all are unread.
6832 (if (not read)
11abff8e 6833 (setq first bottom)
eec82323
LMI
6834 ;; If the range of read articles is a single range, then the
6835 ;; first unread article is the article after the last read
6836 ;; article. Sounds logical, doesn't it?
16409b0b 6837 (if (and (not (listp (cdr read)))
11abff8e 6838 (or (< (car read) bottom)
16409b0b
GM
6839 (progn (setq read (list read))
6840 nil)))
11abff8e 6841 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6842 ;; `read' is a list of ranges.
6843 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6844 (caar read)))
6845 1)
11abff8e 6846 (setq first bottom))
eec82323
LMI
6847 (while read
6848 (when first
6849 (while (< first nlast)
54506618
MB
6850 (setq unread (cons first unread)
6851 first (1+ first))))
eec82323
LMI
6852 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6853 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6854 (setq read (cdr read)))))
6855 ;; And add the last unread articles.
6856 (while (<= first last)
54506618
MB
6857 (setq unread (cons first unread)
6858 first (1+ first)))
eec82323 6859 ;; Return the list of unread articles.
6748645f 6860 (delq 0 (nreverse unread))))
eec82323
LMI
6861
6862(defun gnus-list-of-read-articles (group)
6863 "Return a list of unread, unticked and non-dormant articles."
6864 (let* ((info (gnus-get-info group))
6865 (marked (gnus-info-marks info))
6866 (active (gnus-active group)))
6867 (and info active
23f87bed
MB
6868 (gnus-list-range-difference
6869 (gnus-list-range-difference
6870 (gnus-sorted-complement
11abff8e 6871 (gnus-uncompress-range
4b70e299 6872 (if gnus-newsgroup-maximum-articles
11abff8e 6873 (cons (max (car active)
4b70e299
MB
6874 (- (cdr active)
6875 gnus-newsgroup-maximum-articles
6876 -1))
11abff8e
MB
6877 (cdr active))
6878 active))
23f87bed
MB
6879 (gnus-list-of-unread-articles group))
6880 (cdr (assq 'dormant marked)))
6881 (cdr (assq 'tick marked))))))
eec82323 6882
54506618
MB
6883;; This function returns a sequence of article numbers based on the
6884;; difference between the ranges of read articles in this group and
6885;; the range of active articles.
6886(defun gnus-sequence-of-unread-articles (group)
6887 (let* ((read (gnus-info-read (gnus-get-info group)))
6888 (active (or (gnus-active group) (gnus-activate-group group)))
6889 (last (cdr active))
4b70e299
MB
6890 (bottom (if gnus-newsgroup-maximum-articles
6891 (max (car active)
6892 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6893 (car active)))
54506618
MB
6894 first nlast unread)
6895 ;; If none are read, then all are unread.
6896 (if (not read)
11abff8e 6897 (setq first bottom)
54506618
MB
6898 ;; If the range of read articles is a single range, then the
6899 ;; first unread article is the article after the last read
6900 ;; article. Sounds logical, doesn't it?
6901 (if (and (not (listp (cdr read)))
11abff8e 6902 (or (< (car read) bottom)
54506618
MB
6903 (progn (setq read (list read))
6904 nil)))
11abff8e 6905 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6906 ;; `read' is a list of ranges.
6907 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6908 (caar read)))
6909 1)
11abff8e 6910 (setq first bottom))
54506618
MB
6911 (while read
6912 (when first
6913 (push (cons first nlast) unread))
6914 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6915 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6916 (setq read (cdr read)))))
6917 ;; And add the last unread articles.
ba0226dd
MB
6918 (cond ((not (and first last))
6919 nil)
6920 ((< first last)
6921 (push (cons first last) unread))
6922 ((= first last)
6923 (push first unread)))
54506618
MB
6924 ;; Return the sequence of unread articles.
6925 (delq 0 (nreverse unread))))
6926
eec82323
LMI
6927;; Various summary commands
6928
6748645f
LMI
6929(defun gnus-summary-select-article-buffer ()
6930 "Reconfigure windows to show article buffer."
6931 (interactive)
6932 (if (not (gnus-buffer-live-p gnus-article-buffer))
6933 (error "There is no article buffer for this summary buffer")
6934 (gnus-configure-windows 'article)
6935 (select-window (get-buffer-window gnus-article-buffer))))
6936
eec82323
LMI
6937(defun gnus-summary-universal-argument (arg)
6938 "Perform any operation on all articles that are process/prefixed."
6939 (interactive "P")
eec82323
LMI
6940 (let ((articles (gnus-summary-work-articles arg))
6941 func article)
6942 (if (eq
6943 (setq
6944 func
6945 (key-binding
6946 (read-key-sequence
6947 (substitute-command-keys
16409b0b 6948 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6949 'undefined)
6950 (gnus-error 1 "Undefined key")
6951 (save-excursion
6952 (while articles
6953 (gnus-summary-goto-subject (setq article (pop articles)))
6954 (let (gnus-newsgroup-processable)
6955 (command-execute func))
6956 (gnus-summary-remove-process-mark article)))))
6957 (gnus-summary-position-point))
6958
6959(defun gnus-summary-toggle-truncation (&optional arg)
6960 "Toggle truncation of summary lines.
23f87bed 6961With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6962 (interactive "P")
6963 (setq truncate-lines
6964 (if (null arg) (not truncate-lines)
6965 (> (prefix-numeric-value arg) 0)))
6966 (redraw-display))
6967
23f87bed
MB
6968(defun gnus-summary-find-for-reselect ()
6969 "Return the number of an article to stay on across a reselect.
6970The current article is considered, then following articles, then previous
6971articles. An article is sought which is not cancelled and isn't a temporary
6972insertion from another group. If there's no such then return a dummy 0."
6973 (let (found)
6974 (dolist (rev '(nil t))
6975 (unless found ; don't demand the reverse list if we don't need it
6976 (let ((data (gnus-data-find-list
6977 (gnus-summary-article-number) (gnus-data-list rev))))
6978 (while (and data (not found))
6979 (if (and (< 0 (gnus-data-number (car data)))
6980 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6981 (setq found (gnus-data-number (car data))))
6982 (setq data (cdr data))))))
6983 (or found 0)))
6984
eec82323
LMI
6985(defun gnus-summary-reselect-current-group (&optional all rescan)
6986 "Exit and then reselect the current newsgroup.
6987The prefix argument ALL means to select all articles."
6988 (interactive "P")
eec82323
LMI
6989 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6990 (error "Ephemeral groups can't be reselected"))
23f87bed 6991 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6992 (group gnus-newsgroup-name))
6993 (setq gnus-newsgroup-begin nil)
23f87bed 6994 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6995 ;; We have to adjust the point of group mode buffer because
6996 ;; point was moved to the next unread newsgroup by exiting.
6997 (gnus-summary-jump-to-group group)
6998 (when rescan
6999 (save-excursion
7000 (gnus-group-get-new-news-this-group 1)))
7001 (gnus-group-read-group all t)
7002 (gnus-summary-goto-subject current-subject nil t)))
7003
7004(defun gnus-summary-rescan-group (&optional all)
7005 "Exit the newsgroup, ask for new articles, and select the newsgroup."
7006 (interactive "P")
7007 (gnus-summary-reselect-current-group all t))
7008
7009(defun gnus-summary-update-info (&optional non-destructive)
7010 (save-excursion
7011 (let ((group gnus-newsgroup-name))
6748645f
LMI
7012 (when group
7013 (when gnus-newsgroup-kill-headers
7014 (setq gnus-newsgroup-killed
7015 (gnus-compress-sequence
23f87bed
MB
7016 (gnus-sorted-union
7017 (gnus-list-range-intersection
7018 gnus-newsgroup-unselected gnus-newsgroup-killed)
7019 gnus-newsgroup-unreads)
6748645f
LMI
7020 t)))
7021 (unless (listp (cdr gnus-newsgroup-killed))
7022 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
7023 (let ((headers gnus-newsgroup-headers))
7024 ;; Set the new ranges of read articles.
01c52d31 7025 (with-current-buffer gnus-group-buffer
6748645f
LMI
7026 (gnus-undo-force-boundary))
7027 (gnus-update-read-articles
23f87bed
MB
7028 group (gnus-sorted-union
7029 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
7030 ;; Set the current article marks.
7031 (let ((gnus-newsgroup-scored
7032 (if (and (not gnus-save-score)
7033 (not non-destructive))
7034 nil
7035 gnus-newsgroup-scored)))
7036 (save-excursion
7037 (gnus-update-marks)))
7038 ;; Do the cross-ref thing.
7039 (when gnus-use-cross-reference
7040 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7041 ;; Do not switch windows but change the buffer to work.
a8151ef7 7042 (set-buffer gnus-group-buffer)
6748645f
LMI
7043 (unless (gnus-ephemeral-group-p group)
7044 (gnus-group-update-group group)))))))
eec82323
LMI
7045
7046(defun gnus-summary-save-newsrc (&optional force)
7047 "Save the current number of read/marked articles in the dribble buffer.
7048The dribble buffer will then be saved.
7049If FORCE (the prefix), also save the .newsrc file(s)."
7050 (interactive "P")
7051 (gnus-summary-update-info t)
7052 (if force
7053 (gnus-save-newsrc-file)
7054 (gnus-dribble-save)))
7055
704f1663
GM
7056(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7057
23f87bed 7058(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7059 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7060`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7061 (interactive)
7062 (gnus-set-global-variables)
16409b0b 7063 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7064 (with-current-buffer gnus-article-buffer
16409b0b
GM
7065 (mm-destroy-parts gnus-article-mime-handles)
7066 ;; Set it to nil for safety reason.
7067 (setq gnus-article-mime-handle-alist nil)
7068 (setq gnus-article-mime-handles nil)))
eec82323 7069 (gnus-kill-save-kill-buffer)
6748645f 7070 (gnus-async-halt-prefetch)
eec82323
LMI
7071 (let* ((group gnus-newsgroup-name)
7072 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7073 (gnus-group-is-exiting-p t)
eec82323 7074 (mode major-mode)
23f87bed 7075 (group-point nil)
eec82323 7076 (buf (current-buffer)))
16409b0b
GM
7077 (unless quit-config
7078 ;; Do adaptive scoring, and possibly save score files.
7079 (when gnus-newsgroup-adaptive
7080 (gnus-score-adaptive))
7081 (when gnus-use-scoring
7082 (gnus-score-save)))
6748645f 7083 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7084 ;; If we have several article buffers, we kill them at exit.
7085 (unless gnus-single-article-buffer
01c52d31
MB
7086 (when (gnus-buffer-live-p gnus-article-buffer)
7087 (with-current-buffer gnus-article-buffer
7088 ;; Don't kill sticky article buffers
7089 (unless (eq major-mode 'gnus-sticky-article-mode)
7090 (gnus-kill-buffer gnus-article-buffer)
7091 (setq gnus-article-current nil))))
7092 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7093 (when gnus-use-cache
7094 (gnus-cache-possibly-remove-articles)
7095 (gnus-cache-save-buffers))
7096 (gnus-async-prefetch-remove-group group)
7097 (when gnus-suppress-duplicates
7098 (gnus-dup-enter-articles))
7099 (when gnus-use-trees
7100 (gnus-tree-close group))
16409b0b
GM
7101 (when gnus-use-cache
7102 (gnus-cache-write-active))
6748645f
LMI
7103 ;; Remove entries for this group.
7104 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7105 ;; Make all changes in this group permanent.
7106 (unless quit-config
6748645f 7107 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7108 (gnus-summary-update-info))
eec82323
LMI
7109 (gnus-close-group group)
7110 ;; Make sure where we were, and go to next newsgroup.
7111 (set-buffer gnus-group-buffer)
7112 (unless quit-config
7113 (gnus-group-jump-to-group group))
6748645f
LMI
7114 (gnus-run-hooks 'gnus-summary-exit-hook)
7115 (unless (or quit-config
01c52d31 7116 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7117 ;; If this group has disappeared from the summary
7118 ;; buffer, don't skip forwards.
7119 (not (string= group (gnus-group-group-name))))
eec82323 7120 (gnus-group-next-unread-group 1))
a8151ef7 7121 (setq group-point (point))
eec82323
LMI
7122 (if temporary
7123 nil ;Nothing to do.
eec82323
LMI
7124 (set-buffer buf)
7125 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7126 (progn
7127 (gnus-deaden-summary)
7128 (setq mode nil))
eec82323
LMI
7129 ;; We set all buffer-local variables to nil. It is unclear why
7130 ;; this is needed, but if we don't, buffer-local variables are
7131 ;; not garbage-collected, it seems. This would the lead to en
7132 ;; ever-growing Emacs.
7133 (gnus-summary-clear-local-variables)
23f87bed
MB
7134 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7135 (gnus-summary-clear-local-variables))
eec82323
LMI
7136 (when (get-buffer gnus-article-buffer)
7137 (bury-buffer gnus-article-buffer))
eec82323
LMI
7138 ;; Return to group mode buffer.
7139 (when (eq mode 'gnus-summary-mode)
7140 (gnus-kill-buffer buf)))
7141 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7142 (set-buffer gnus-group-buffer)
7143 (if quit-config
7144 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7145 (goto-char group-point)
7146 ;; If gnus-group-buffer is already displayed, make sure we also move
7147 ;; the cursor in the window that displays it.
7148 (let ((win (get-buffer-window (current-buffer) 0)))
7149 (if win (set-window-point win (point))))
d61c212b 7150 (unless leave-hidden
4e90f2b9 7151 (gnus-configure-windows 'group 'force)))
6748645f 7152 ;; Clear the current group name.
eec82323
LMI
7153 (unless quit-config
7154 (setq gnus-newsgroup-name nil)))))
7155
7156(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7157(defun gnus-summary-exit-no-update (&optional no-questions)
7158 "Quit reading current newsgroup without updating read article info."
7159 (interactive)
eec82323 7160 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7161 (gnus-group-is-exiting-p t)
7162 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7163 (quit-config (gnus-group-quit-config group)))
7164 (when (or no-questions
7165 gnus-expert-user
7166 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7167 (gnus-async-halt-prefetch)
23f87bed 7168 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7169 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7170 (with-current-buffer gnus-article-buffer
16409b0b
GM
7171 (mm-destroy-parts gnus-article-mime-handles)
7172 ;; Set it to nil for safety reason.
7173 (setq gnus-article-mime-handle-alist nil)
7174 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7175 ;; If we have several article buffers, we kill them at exit.
7176 (unless gnus-single-article-buffer
7177 (gnus-kill-buffer gnus-article-buffer)
7178 (gnus-kill-buffer gnus-original-article-buffer)
7179 (setq gnus-article-current nil))
7180 (if (not gnus-kill-summary-on-exit)
7181 (gnus-deaden-summary)
7182 (gnus-close-group group)
7183 (gnus-summary-clear-local-variables)
23f87bed
MB
7184 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7185 (gnus-summary-clear-local-variables))
7186 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7187 (unless gnus-single-article-buffer
7188 (setq gnus-article-current nil))
7189 (when gnus-use-trees
7190 (gnus-tree-close group))
7191 (gnus-async-prefetch-remove-group group)
7192 (when (get-buffer gnus-article-buffer)
7193 (bury-buffer gnus-article-buffer))
7194 ;; Return to the group buffer.
7195 (gnus-configure-windows 'group 'force)
7196 ;; Clear the current group name.
7197 (setq gnus-newsgroup-name nil)
23f87bed
MB
7198 (unless (gnus-ephemeral-group-p group)
7199 (gnus-group-update-group group))
eec82323
LMI
7200 (when (equal (gnus-group-group-name) group)
7201 (gnus-group-next-unread-group 1))
7202 (when quit-config
23f87bed 7203 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7204
7205(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7206 "Handle movement when leaving an ephemeral group.
7207The state which existed when entering the ephemeral is reset."
eec82323
LMI
7208 (if (not (buffer-name (car quit-config)))
7209 (gnus-configure-windows 'group 'force)
7210 (set-buffer (car quit-config))
7211 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7212 (gnus-set-global-variables))
7213 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7214 (save-current-buffer
23f87bed
MB
7215 ;; The `gnus-summary-buffer' variable may point
7216 ;; to the old summary buffer when using a single
7217 ;; article buffer.
7218 (unless (gnus-buffer-live-p gnus-summary-buffer)
7219 (set-buffer gnus-group-buffer))
7220 (set-buffer gnus-summary-buffer)
7221 (gnus-set-global-variables))))
eec82323 7222 (if (or (eq (cdr quit-config) 'article)
23f87bed 7223 (eq (cdr quit-config) 'pick))
01c52d31
MB
7224 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7225 (gnus-configure-windows 'pick 'force)
7226 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7227 (gnus-configure-windows (cdr quit-config) 'force))
7228 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7229 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7230 next-unread-noselect))
7231 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7232 'next-noselect)
7233 (gnus-summary-next-subject 1 nil t))
7234 ((eq gnus-auto-select-on-ephemeral-exit
7235 'next-unread-noselect)
7236 (gnus-summary-next-subject 1 t t))))
7237 ;; Hide the article buffer which displays the article different
7238 ;; from the one that the cursor points to in the summary buffer.
7239 (gnus-configure-windows 'summary 'force))
7240 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7241 (gnus-summary-next-subject 1))
7242 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7243 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7244 (gnus-summary-recenter)
7245 (gnus-summary-position-point))))
7246
7247;;; Dead summaries.
7248
7249(defvar gnus-dead-summary-mode-map nil)
7250
7251(unless gnus-dead-summary-mode-map
7252 (setq gnus-dead-summary-mode-map (make-keymap))
7253 (suppress-keymap gnus-dead-summary-mode-map)
7254 (substitute-key-definition
7255 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
23f87bed
MB
7256 (dolist (key '("\C-d" "\r" "\177" [delete]))
7257 (define-key gnus-dead-summary-mode-map
7258 key 'gnus-summary-wake-up-the-dead))
7259 (dolist (key '("q" "Q"))
7260 (define-key gnus-dead-summary-mode-map key 'bury-buffer)))
eec82323
LMI
7261
7262(defvar gnus-dead-summary-mode nil
7263 "Minor mode for Gnus summary buffers.")
7264
7265(defun gnus-dead-summary-mode (&optional arg)
7266 "Minor mode for Gnus summary buffers."
7267 (interactive "P")
7268 (when (eq major-mode 'gnus-summary-mode)
7269 (make-local-variable 'gnus-dead-summary-mode)
7270 (setq gnus-dead-summary-mode
7271 (if (null arg) (not gnus-dead-summary-mode)
7272 (> (prefix-numeric-value arg) 0)))
7273 (when gnus-dead-summary-mode
01c52d31 7274 (add-minor-mode
a8151ef7 7275 'gnus-dead-summary-mode " Dead" gnus-dead-summary-mode-map))))
eec82323
LMI
7276
7277(defun gnus-deaden-summary ()
7278 "Make the current summary buffer into a dead summary buffer."
7279 ;; Kill any previous dead summary buffer.
7280 (when (and gnus-dead-summary
7281 (buffer-name gnus-dead-summary))
01c52d31 7282 (with-current-buffer gnus-dead-summary
eec82323
LMI
7283 (when gnus-dead-summary-mode
7284 (kill-buffer (current-buffer)))))
7285 ;; Make this the current dead summary.
7286 (setq gnus-dead-summary (current-buffer))
7287 (gnus-dead-summary-mode 1)
7288 (let ((name (buffer-name)))
7289 (when (string-match "Summary" name)
7290 (rename-buffer
7291 (concat (substring name 0 (match-beginning 0)) "Dead "
7292 (substring name (match-beginning 0)))
16409b0b
GM
7293 t)
7294 (bury-buffer))))
eec82323
LMI
7295
7296(defun gnus-kill-or-deaden-summary (buffer)
7297 "Kill or deaden the summary BUFFER."
6748645f
LMI
7298 (save-excursion
7299 (when (and (buffer-name buffer)
7300 (not gnus-single-article-buffer))
01c52d31 7301 (with-current-buffer buffer
6748645f
LMI
7302 (gnus-kill-buffer gnus-article-buffer)
7303 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7304 (cond
7305 ;; Kill the buffer.
7306 (gnus-kill-summary-on-exit
7307 (when (and gnus-use-trees
7308 (gnus-buffer-exists-p buffer))
c7a91ce1 7309 (with-current-buffer buffer
23f87bed
MB
7310 (gnus-tree-close gnus-newsgroup-name)))
7311 (gnus-kill-buffer buffer))
7312 ;; Deaden the buffer.
7313 ((gnus-buffer-exists-p buffer)
c7a91ce1 7314 (with-current-buffer buffer
23f87bed 7315 (gnus-deaden-summary))))))
eec82323
LMI
7316
7317(defun gnus-summary-wake-up-the-dead (&rest args)
7318 "Wake up the dead summary buffer."
7319 (interactive)
7320 (gnus-dead-summary-mode -1)
7321 (let ((name (buffer-name)))
7322 (when (string-match "Dead " name)
7323 (rename-buffer
7324 (concat (substring name 0 (match-beginning 0))
7325 (substring name (match-end 0)))
7326 t)))
7327 (gnus-message 3 "This dead summary is now alive again"))
7328
7329;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7330(defun gnus-summary-fetch-faq (&optional faq-dir)
7331 "Fetch the FAQ for the current group.
7332If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7333in."
7334 (interactive
7335 (list
7336 (when current-prefix-arg
7337 (completing-read
8f688cb0 7338 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7339 (mapcar 'list
a8151ef7 7340 gnus-group-faq-directory))))))
eec82323
LMI
7341 (let (gnus-faq-buffer)
7342 (when (setq gnus-faq-buffer
7343 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7344 (gnus-configure-windows 'summary-faq))))
7345
7346;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7347(defun gnus-summary-describe-group (&optional force)
7348 "Describe the current newsgroup."
7349 (interactive "P")
7350 (gnus-group-describe-group force gnus-newsgroup-name))
7351
7352(defun gnus-summary-describe-briefly ()
7353 "Describe summary mode commands briefly."
7354 (interactive)
16409b0b 7355 (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
7356
7357;; Walking around group mode buffer from summary mode.
7358
7359(defun gnus-summary-next-group (&optional no-article target-group backward)
7360 "Exit current newsgroup and then select next unread newsgroup.
7361If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7362initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7363previous group instead."
7364 (interactive "P")
eec82323
LMI
7365 ;; Stop pre-fetching.
7366 (gnus-async-halt-prefetch)
7367 (let ((current-group gnus-newsgroup-name)
7368 (current-buffer (current-buffer))
7369 entered)
7370 ;; First we semi-exit this group to update Xrefs and all variables.
7371 ;; We can't do a real exit, because the window conf must remain
7372 ;; the same in case the user is prompted for info, and we don't
7373 ;; want the window conf to change before that...
7374 (gnus-summary-exit t)
7375 (while (not entered)
7376 ;; Then we find what group we are supposed to enter.
7377 (set-buffer gnus-group-buffer)
7378 (gnus-group-jump-to-group current-group)
7379 (setq target-group
7380 (or target-group
7381 (if (eq gnus-keep-same-level 'best)
7382 (gnus-summary-best-group gnus-newsgroup-name)
7383 (gnus-summary-search-group backward gnus-keep-same-level))))
7384 (if (not target-group)
7385 ;; There are no further groups, so we return to the group
7386 ;; buffer.
7387 (progn
7388 (gnus-message 5 "Returning to the group buffer")
7389 (setq entered t)
7390 (when (gnus-buffer-live-p current-buffer)
7391 (set-buffer current-buffer)
7392 (gnus-summary-exit))
6748645f 7393 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7394 ;; We try to enter the target group.
7395 (gnus-group-jump-to-group target-group)
7396 (let ((unreads (gnus-group-group-unread)))
7397 (if (and (or (eq t unreads)
7398 (and unreads (not (zerop unreads))))
23f87bed
MB
7399 (gnus-summary-read-group
7400 target-group nil no-article
7401 (and (buffer-name current-buffer) current-buffer)
7402 nil backward))
eec82323
LMI
7403 (setq entered t)
7404 (setq current-group target-group
7405 target-group nil)))))))
7406
7407(defun gnus-summary-prev-group (&optional no-article)
7408 "Exit current newsgroup and then select previous unread newsgroup.
7409If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7410 (interactive "P")
7411 (gnus-summary-next-group no-article nil t))
7412
7413;; Walking around summary lines.
7414
23f87bed
MB
7415(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7416 "Go to the first subject satisfying any non-nil constraint.
7417If UNREAD is non-nil, the article should be unread.
7418If UNDOWNLOADED is non-nil, the article should be undownloaded.
7419If UNSEEN is non-nil, the article should be unseen.
7420Returns the article selected or nil if there are no matching articles."
eec82323 7421 (interactive "P")
23f87bed
MB
7422 (cond
7423 ;; Empty summary.
7424 ((null gnus-newsgroup-data)
7425 (gnus-message 3 "No articles in the group")
7426 nil)
7427 ;; Pick the first article.
7428 ((not (or unread undownloaded unseen))
7429 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7430 (gnus-data-number (car gnus-newsgroup-data)))
7431 ;; Find the first unread article.
7432 (t
7433 (let ((data gnus-newsgroup-data))
7434 (while (and data
7435 (let ((num (gnus-data-number (car data))))
7436 (or (memq num gnus-newsgroup-unfetched)
7437 (not (or (and unread
7438 (memq num gnus-newsgroup-unreads))
7439 (and undownloaded
7440 (memq num gnus-newsgroup-undownloaded))
7441 (and unseen
7442 (memq num gnus-newsgroup-unseen)))))))
7443 (setq data (cdr data)))
7444 (prog1
7445 (if data
7446 (progn
7447 (goto-char (gnus-data-pos (car data)))
7448 (gnus-data-number (car data)))
7449 (gnus-message 3 "No more%s articles"
7450 (let* ((r (when unread " unread"))
7451 (d (when undownloaded " undownloaded"))
7452 (s (when unseen " unseen"))
7453 (l (delq nil (list r d s))))
7454 (cond ((= 3 (length l))
7455 (concat r "," d ", or" s))
7456 ((= 2 (length l))
7457 (concat (car l) ", or" (cadr l)))
7458 ((= 1 (length l))
7459 (car l))
7460 (t
7461 ""))))
7462 nil
7463 )
7464 (gnus-summary-position-point))))))
eec82323
LMI
7465
7466(defun gnus-summary-next-subject (n &optional unread dont-display)
7467 "Go to next N'th summary line.
7468If N is negative, go to the previous N'th subject line.
7469If UNREAD is non-nil, only unread articles are selected.
7470The difference between N and the actual number of steps taken is
7471returned."
7472 (interactive "p")
7473 (let ((backward (< n 0))
7474 (n (abs n)))
7475 (while (and (> n 0)
7476 (if backward
7477 (gnus-summary-find-prev unread)
7478 (gnus-summary-find-next unread)))
16409b0b
GM
7479 (unless (zerop (setq n (1- n)))
7480 (gnus-summary-show-thread)))
eec82323
LMI
7481 (when (/= 0 n)
7482 (gnus-message 7 "No more%s articles"
7483 (if unread " unread" "")))
7484 (unless dont-display
7485 (gnus-summary-recenter)
7486 (gnus-summary-position-point))
7487 n))
7488
7489(defun gnus-summary-next-unread-subject (n)
7490 "Go to next N'th unread summary line."
7491 (interactive "p")
7492 (gnus-summary-next-subject n t))
7493
7494(defun gnus-summary-prev-subject (n &optional unread)
7495 "Go to previous N'th summary line.
7496If optional argument UNREAD is non-nil, only unread article is selected."
7497 (interactive "p")
7498 (gnus-summary-next-subject (- n) unread))
7499
7500(defun gnus-summary-prev-unread-subject (n)
7501 "Go to previous N'th unread summary line."
7502 (interactive "p")
7503 (gnus-summary-next-subject (- n) t))
7504
23f87bed
MB
7505(defun gnus-summary-goto-subjects (articles)
7506 "Insert the subject header for ARTICLES in the current buffer."
7507 (save-excursion
7508 (dolist (article articles)
7509 (gnus-summary-goto-subject article t)))
7510 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7511 (gnus-summary-position-point))
132cf96d 7512
eec82323 7513(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7514 "Go to the subject line of ARTICLE.
eec82323
LMI
7515If FORCE, also allow jumping to articles not currently shown."
7516 (interactive "nArticle number: ")
23f87bed
MB
7517 (unless (numberp article)
7518 (error "Article %s is not a number" article))
eec82323
LMI
7519 (let ((b (point))
7520 (data (gnus-data-find article)))
7521 ;; We read in the article if we have to.
7522 (and (not data)
7523 force
6748645f
LMI
7524 (gnus-summary-insert-subject
7525 article
7526 (if (or (numberp force) (vectorp force)) force)
7527 t)
eec82323
LMI
7528 (setq data (gnus-data-find article)))
7529 (goto-char b)
7530 (if (not data)
7531 (progn
7532 (unless silent
7533 (gnus-message 3 "Can't find article %d" article))
7534 nil)
23f87bed
MB
7535 (let ((pt (gnus-data-pos data)))
7536 (goto-char pt)
7537 (gnus-summary-set-article-display-arrow pt))
6748645f 7538 (gnus-summary-position-point)
eec82323
LMI
7539 article)))
7540
7541;; Walking around summary lines with displaying articles.
7542
7543(defun gnus-summary-expand-window (&optional arg)
7544 "Make the summary buffer take up the entire Emacs frame.
7545Given a prefix, will force an `article' buffer configuration."
7546 (interactive "P")
eec82323
LMI
7547 (if arg
7548 (gnus-configure-windows 'article 'force)
7549 (gnus-configure-windows 'summary 'force)))
7550
7551(defun gnus-summary-display-article (article &optional all-header)
7552 "Display ARTICLE in article buffer."
01c52d31
MB
7553 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7554 (with-current-buffer gnus-article-buffer
7555 (eq major-mode 'gnus-article-mode)))
7556 (gnus-article-setup-buffer))
eec82323 7557 (gnus-set-global-variables)
01c52d31
MB
7558 (with-current-buffer gnus-article-buffer
7559 (setq gnus-article-charset gnus-newsgroup-charset)
7560 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7561 (mm-enable-multibyte))
eec82323
LMI
7562 (if (null article)
7563 nil
7564 (prog1
7565 (if gnus-summary-display-article-function
7566 (funcall gnus-summary-display-article-function article all-header)
7567 (gnus-article-prepare article all-header))
6748645f 7568 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7569 (when (and gnus-current-article
7570 (not (zerop gnus-current-article)))
7571 (gnus-summary-goto-subject gnus-current-article))
7572 (gnus-summary-recenter)
7573 (when (and gnus-use-trees gnus-show-threads)
7574 (gnus-possibly-generate-tree article)
7575 (gnus-highlight-selected-tree article))
7576 ;; Successfully display article.
7577 (gnus-article-set-window-start
7578 (cdr (assq article gnus-newsgroup-bookmarks))))))
7579
7580(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7581 "Select the current article.
7582If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7583non-nil, the article will be re-fetched even if it already present in
7584the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7585be displayed."
7586 ;; Make sure we are in the summary buffer to work around bbdb bug.
7587 (unless (eq major-mode 'gnus-summary-mode)
7588 (set-buffer gnus-summary-buffer))
7589 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7590 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7591 gnus-summary-display-article-function)
eec82323
LMI
7592 (and (not pseudo)
7593 (gnus-summary-article-pseudo-p article)
a8151ef7 7594 (error "This is a pseudo-article"))
c7a91ce1 7595 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7596 (if (or (and gnus-single-article-buffer
7597 (or (null gnus-current-article)
7598 (null gnus-article-current)
7599 (null (get-buffer gnus-article-buffer))
7600 (not (eq article (cdr gnus-article-current)))
7601 (not (equal (car gnus-article-current)
7602 gnus-newsgroup-name))))
7603 (and (not gnus-single-article-buffer)
7604 (or (null gnus-current-article)
7605 (not (eq gnus-current-article article))))
7606 force)
7607 ;; The requested article is different from the current article.
7608 (progn
16409b0b
GM
7609 (gnus-summary-display-article article all-headers)
7610 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7611 (with-current-buffer gnus-article-buffer
16409b0b 7612 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7613 (mm-disable-multibyte))))
16409b0b
GM
7614 (gnus-article-set-window-start
7615 (cdr (assq article gnus-newsgroup-bookmarks)))
7616 article)
16409b0b 7617 'old))))
eec82323 7618
23f87bed
MB
7619(defun gnus-summary-force-verify-and-decrypt ()
7620 "Display buttons for signed/encrypted parts and verify/decrypt them."
7621 (interactive)
7622 (let ((mm-verify-option 'known)
7623 (mm-decrypt-option 'known)
7624 (gnus-article-emulate-mime t)
7625 (gnus-buttonized-mime-types (append (list "multipart/signed"
7626 "multipart/encrypted")
7627 gnus-buttonized-mime-types)))
7628 (gnus-summary-select-article nil 'force)))
7629
eec82323
LMI
7630(defun gnus-summary-set-current-mark (&optional current-mark)
7631 "Obsolete function."
7632 nil)
7633
7634(defun gnus-summary-next-article (&optional unread subject backward push)
7635 "Select the next article.
7636If UNREAD, only unread articles are selected.
7637If SUBJECT, only articles with SUBJECT are selected.
7638If BACKWARD, the previous article is selected instead of the next."
7639 (interactive "P")
11e95b02
MB
7640 ;; Make sure we are in the summary buffer.
7641 (unless (eq major-mode 'gnus-summary-mode)
7642 (set-buffer gnus-summary-buffer))
eec82323
LMI
7643 (cond
7644 ;; Is there such an article?
7645 ((and (gnus-summary-search-forward unread subject backward)
7646 (or (gnus-summary-display-article (gnus-summary-article-number))
7647 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7648 (gnus-summary-position-point))
7649 ;; If not, we try the first unread, if that is wanted.
7650 ((and subject
7651 gnus-auto-select-same
7652 (gnus-summary-first-unread-article))
7653 (gnus-summary-position-point)
7654 (gnus-message 6 "Wrapped"))
7655 ;; Try to get next/previous article not displayed in this group.
7656 ((and gnus-auto-extend-newsgroup
7657 (not unread) (not subject))
7658 (gnus-summary-goto-article
7659 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7660 nil (count-lines (point-min) (point))))
eec82323
LMI
7661 ;; Go to next/previous group.
7662 (t
7663 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7664 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7665 (let ((cmd (if (featurep 'xemacs)
7666 last-command-char
7667 last-command-event))
eec82323 7668 (point
01c52d31 7669 (with-current-buffer gnus-group-buffer
eec82323
LMI
7670 (point)))
7671 (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 ;; For some reason, the group window gets selected. We change
7676 ;; it back.
7677 (select-window (get-buffer-window (current-buffer)))
7678 ;; Select next unread newsgroup automagically.
7679 (cond
7680 ((or (not gnus-auto-select-next)
7681 (not cmd))
7682 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7683 ((or (eq gnus-auto-select-next 'quietly)
7684 (and (eq gnus-auto-select-next 'slightly-quietly)
7685 push)
7686 (and (eq gnus-auto-select-next 'almost-quietly)
7687 (gnus-summary-last-article-p)))
7688 ;; Select quietly.
7689 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7690 (gnus-summary-exit)
7691 (gnus-message 7 "No more%s articles (%s)..."
7692 (if unread " unread" "")
7693 (if group (concat "selecting " group)
7694 "exiting"))
7695 (gnus-summary-next-group nil group backward)))
7696 (t
7697 (when (gnus-key-press-event-p last-input-event)
7698 (gnus-summary-walk-group-buffer
7699 gnus-newsgroup-name cmd unread backward point))))))))
7700
7701(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7702 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7703 (?\C-p (gnus-group-prev-unread-group 1))))
7704 (cursor-in-echo-area t)
23f87bed 7705 keve key group ended prompt)
c7a91ce1 7706 (with-current-buffer gnus-group-buffer
eec82323
LMI
7707 (goto-char start)
7708 (setq group
7709 (if (eq gnus-keep-same-level 'best)
7710 (gnus-summary-best-group gnus-newsgroup-name)
7711 (gnus-summary-search-group backward gnus-keep-same-level))))
7712 (while (not ended)
23f87bed
MB
7713 (setq prompt
7714 (format
7715 "No more%s articles%s " (if unread " unread" "")
7716 (if (and group
7717 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7718 (format " (Type %s for %s [%s])"
91472578
MB
7719 (single-key-description cmd)
7720 (gnus-group-decoded-name group)
01c52d31 7721 (gnus-group-unread group))
23f87bed
MB
7722 (format " (Type %s to exit %s)"
7723 (single-key-description cmd)
91472578 7724 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7725 ;; Confirm auto selection.
23f87bed
MB
7726 (setq key (car (setq keve (gnus-read-event-char prompt)))
7727 ended t)
eec82323
LMI
7728 (cond
7729 ((assq key keystrokes)
7730 (let ((obuf (current-buffer)))
7731 (switch-to-buffer gnus-group-buffer)
7732 (when group
7733 (gnus-group-jump-to-group group))
7734 (eval (cadr (assq key keystrokes)))
7735 (setq group (gnus-group-group-name))
7736 (switch-to-buffer obuf))
7737 (setq ended nil))
7738 ((equal key cmd)
7739 (if (or (not group)
7740 (gnus-ephemeral-group-p gnus-newsgroup-name))
7741 (gnus-summary-exit)
7742 (gnus-summary-next-group nil group backward)))
7743 (t
7744 (push (cdr keve) unread-command-events))))))
7745
7746(defun gnus-summary-next-unread-article ()
7747 "Select unread article after current one."
7748 (interactive)
7749 (gnus-summary-next-article
7750 (or (not (eq gnus-summary-goto-unread 'never))
7751 (gnus-summary-last-article-p (gnus-summary-article-number)))
7752 (and gnus-auto-select-same
7753 (gnus-summary-article-subject))))
7754
7755(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7756 "Select the article before the current one.
eec82323
LMI
7757If UNREAD is non-nil, only unread articles are selected."
7758 (interactive "P")
7759 (gnus-summary-next-article unread subject t))
7760
7761(defun gnus-summary-prev-unread-article ()
7762 "Select unread article before current one."
7763 (interactive)
7764 (gnus-summary-prev-article
7765 (or (not (eq gnus-summary-goto-unread 'never))
7766 (gnus-summary-first-article-p (gnus-summary-article-number)))
7767 (and gnus-auto-select-same
7768 (gnus-summary-article-subject))))
7769
23f87bed 7770(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7771 "Show next page of the selected article.
7772If at the end of the current article, select the next article.
7773LINES says how many lines should be scrolled up.
7774
7775If CIRCULAR is non-nil, go to the start of the article instead of
7776selecting the next article when reaching the end of the current
23f87bed
MB
7777article.
7778
7779If STOP is non-nil, just stop when reaching the end of the message.
7780
7781Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7782 (interactive "P")
7783 (setq gnus-summary-buffer (current-buffer))
7784 (gnus-set-global-variables)
7785 (let ((article (gnus-summary-article-number))
7786 (article-window (get-buffer-window gnus-article-buffer t))
7787 endp)
6748645f
LMI
7788 ;; If the buffer is empty, we have no article.
7789 (unless article
7790 (error "No article to select"))
eec82323
LMI
7791 (gnus-configure-windows 'article)
7792 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7793 (if (and (eq gnus-summary-goto-unread 'never)
7794 (not (gnus-summary-last-article-p article)))
7795 (gnus-summary-next-article)
7796 (gnus-summary-next-unread-article))
7797 (if (or (null gnus-current-article)
7798 (null gnus-article-current)
7799 (/= article (cdr gnus-article-current))
7800 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7801 ;; Selected subject is different from current article's.
7802 (gnus-summary-display-article article)
7803 (when article-window
7804 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7805 (setq endp (or (gnus-article-next-page lines)
7806 (gnus-article-only-boring-p))))
eec82323 7807 (when endp
23f87bed
MB
7808 (cond (stop
7809 (gnus-message 3 "End of message"))
7810 (circular
eec82323
LMI
7811 (gnus-summary-beginning-of-article))
7812 (lines
7813 (gnus-message 3 "End of message"))
7814 ((null lines)
7815 (if (and (eq gnus-summary-goto-unread 'never)
7816 (not (gnus-summary-last-article-p article)))
7817 (gnus-summary-next-article)
7818 (gnus-summary-next-unread-article))))))))
7819 (gnus-summary-recenter)
7820 (gnus-summary-position-point)))
7821
7822(defun gnus-summary-prev-page (&optional lines move)
7823 "Show previous page of selected article.
7824Argument LINES specifies lines to be scrolled down.
7825If MOVE, move to the previous unread article if point is at
7826the beginning of the buffer."
7827 (interactive "P")
eec82323
LMI
7828 (let ((article (gnus-summary-article-number))
7829 (article-window (get-buffer-window gnus-article-buffer t))
7830 endp)
7831 (gnus-configure-windows 'article)
7832 (if (or (null gnus-current-article)
7833 (null gnus-article-current)
7834 (/= article (cdr gnus-article-current))
7835 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7836 ;; Selected subject is different from current article's.
7837 (gnus-summary-display-article article)
7838 (gnus-summary-recenter)
7839 (when article-window
7840 (gnus-eval-in-buffer-window gnus-article-buffer
7841 (setq endp (gnus-article-prev-page lines)))
7842 (when (and move endp)
7843 (cond (lines
7844 (gnus-message 3 "Beginning of message"))
7845 ((null lines)
7846 (if (and (eq gnus-summary-goto-unread 'never)
7847 (not (gnus-summary-first-article-p article)))
7848 (gnus-summary-prev-article)
7849 (gnus-summary-prev-unread-article))))))))
7850 (gnus-summary-position-point))
7851
7852(defun gnus-summary-prev-page-or-article (&optional lines)
7853 "Show previous page of selected article.
7854Argument LINES specifies lines to be scrolled down.
7855If at the beginning of the article, go to the next article."
7856 (interactive "P")
7857 (gnus-summary-prev-page lines t))
7858
7859(defun gnus-summary-scroll-up (lines)
7860 "Scroll up (or down) one line current article.
7861Argument LINES specifies lines to be scrolled up (or down if negative)."
7862 (interactive "p")
eec82323
LMI
7863 (gnus-configure-windows 'article)
7864 (gnus-summary-show-thread)
7865 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7866 (gnus-eval-in-buffer-window gnus-article-buffer
7867 (cond ((> lines 0)
7868 (when (gnus-article-next-page lines)
7869 (gnus-message 3 "End of message")))
7870 ((< lines 0)
7871 (gnus-article-prev-page (- lines))))))
7872 (gnus-summary-recenter)
7873 (gnus-summary-position-point))
7874
6748645f
LMI
7875(defun gnus-summary-scroll-down (lines)
7876 "Scroll down (or up) one line current article.
7877Argument LINES specifies lines to be scrolled down (or up if negative)."
7878 (interactive "p")
7879 (gnus-summary-scroll-up (- lines)))
7880
eec82323
LMI
7881(defun gnus-summary-next-same-subject ()
7882 "Select next article which has the same subject as current one."
7883 (interactive)
eec82323
LMI
7884 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7885
7886(defun gnus-summary-prev-same-subject ()
7887 "Select previous article which has the same subject as current one."
7888 (interactive)
eec82323
LMI
7889 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7890
7891(defun gnus-summary-next-unread-same-subject ()
7892 "Select next unread article which has the same subject as current one."
7893 (interactive)
eec82323
LMI
7894 (gnus-summary-next-article t (gnus-summary-article-subject)))
7895
7896(defun gnus-summary-prev-unread-same-subject ()
7897 "Select previous unread article which has the same subject as current one."
7898 (interactive)
eec82323
LMI
7899 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7900
7901(defun gnus-summary-first-unread-article ()
7902 "Select the first unread article.
7903Return nil if there are no unread articles."
7904 (interactive)
eec82323
LMI
7905 (prog1
7906 (when (gnus-summary-first-subject t)
7907 (gnus-summary-show-thread)
7908 (gnus-summary-first-subject t)
7909 (gnus-summary-display-article (gnus-summary-article-number)))
7910 (gnus-summary-position-point)))
7911
16409b0b
GM
7912(defun gnus-summary-first-unread-subject ()
7913 "Place the point on the subject line of the first unread article.
7914Return nil if there are no unread articles."
7915 (interactive)
7916 (prog1
7917 (when (gnus-summary-first-subject t)
7918 (gnus-summary-show-thread)
7919 (gnus-summary-first-subject t))
7920 (gnus-summary-position-point)))
7921
23f87bed
MB
7922(defun gnus-summary-first-unseen-subject ()
7923 "Place the point on the subject line of the first unseen article.
7924Return nil if there are no unseen articles."
7925 (interactive)
7926 (prog1
7927 (when (gnus-summary-first-subject nil nil t)
7928 (gnus-summary-show-thread)
7929 (gnus-summary-first-subject nil nil t))
7930 (gnus-summary-position-point)))
7931
7932(defun gnus-summary-first-unseen-or-unread-subject ()
7933 "Place the point on the subject line of the first unseen article or,
7934if all article have been seen, on the subject line of the first unread
7935article."
7936 (interactive)
7937 (prog1
7938 (unless (when (gnus-summary-first-subject nil nil t)
7939 (gnus-summary-show-thread)
7940 (gnus-summary-first-subject nil nil t))
7941 (when (gnus-summary-first-subject t)
7942 (gnus-summary-show-thread)
7943 (gnus-summary-first-subject t)))
7944 (gnus-summary-position-point)))
7945
eec82323
LMI
7946(defun gnus-summary-first-article ()
7947 "Select the first article.
7948Return nil if there are no articles."
7949 (interactive)
eec82323
LMI
7950 (prog1
7951 (when (gnus-summary-first-subject)
16409b0b
GM
7952 (gnus-summary-show-thread)
7953 (gnus-summary-first-subject)
7954 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7955 (gnus-summary-position-point)))
7956
23f87bed
MB
7957(defun gnus-summary-best-unread-article (&optional arg)
7958 "Select the unread article with the highest score.
7959If given a prefix argument, select the next unread article that has a
7960score higher than the default score."
7961 (interactive "P")
7962 (let ((article (if arg
7963 (gnus-summary-better-unread-subject)
7964 (gnus-summary-best-unread-subject))))
7965 (if article
7966 (gnus-summary-goto-article article)
7967 (error "No unread articles"))))
7968
7969(defun gnus-summary-best-unread-subject ()
7970 "Select the unread subject with the highest score."
eec82323 7971 (interactive)
eec82323
LMI
7972 (let ((best -1000000)
7973 (data gnus-newsgroup-data)
7974 article score)
7975 (while data
7976 (and (gnus-data-unread-p (car data))
7977 (> (setq score
7978 (gnus-summary-article-score (gnus-data-number (car data))))
7979 best)
7980 (setq best score
7981 article (gnus-data-number (car data))))
7982 (setq data (cdr data)))
23f87bed
MB
7983 (when article
7984 (gnus-summary-goto-subject article))
7985 (gnus-summary-position-point)
7986 article))
7987
7988(defun gnus-summary-better-unread-subject ()
7989 "Select the first unread subject that has a score over the default score."
7990 (interactive)
7991 (let ((data gnus-newsgroup-data)
7992 article score)
7993 (while (and (setq article (gnus-data-number (car data)))
7994 (or (gnus-data-read-p (car data))
7995 (not (> (gnus-summary-article-score article)
7996 gnus-summary-default-score))))
7997 (setq data (cdr data)))
7998 (when article
7999 (gnus-summary-goto-subject article))
8000 (gnus-summary-position-point)
8001 article))
eec82323
LMI
8002
8003(defun gnus-summary-last-subject ()
8004 "Go to the last displayed subject line in the group."
8005 (let ((article (gnus-data-number (car (gnus-data-list t)))))
8006 (when article
8007 (gnus-summary-goto-subject article))))
8008
8009(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
8010 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
8011If ALL-HEADERS is non-nil, no header lines are hidden.
8012If FORCE, go to the article even if it isn't displayed. If FORCE
8013is a number, it is the line the article is to be displayed on."
eec82323
LMI
8014 (interactive
8015 (list
6748645f
LMI
8016 (completing-read
8017 "Article number or Message-ID: "
8018 (mapcar (lambda (number) (list (int-to-string number)))
8019 gnus-newsgroup-limit))
eec82323
LMI
8020 current-prefix-arg
8021 t))
8022 (prog1
6748645f 8023 (if (and (stringp article)
23f87bed 8024 (string-match "@\\|%40" article))
6748645f
LMI
8025 (gnus-summary-refer-article article)
8026 (when (stringp article)
8027 (setq article (string-to-number article)))
8028 (if (gnus-summary-goto-subject article force)
8029 (gnus-summary-display-article article all-headers)
8030 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
8031 (gnus-summary-position-point)))
8032
8033(defun gnus-summary-goto-last-article ()
8034 "Go to the previously read article."
8035 (interactive)
8036 (prog1
8037 (when gnus-last-article
6748645f 8038 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8039 (gnus-summary-position-point)))
8040
8041(defun gnus-summary-pop-article (number)
8042 "Pop one article off the history and go to the previous.
8043NUMBER articles will be popped off."
8044 (interactive "p")
8045 (let (to)
8046 (setq gnus-newsgroup-history
8047 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8048 (if to
6748645f 8049 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8050 (error "Article history empty")))
8051 (gnus-summary-position-point))
8052
8053;; Summary commands and functions for limiting the summary buffer.
8054
8055(defun gnus-summary-limit-to-articles (n)
8056 "Limit the summary buffer to the next N articles.
8057If not given a prefix, use the process marked articles instead."
8058 (interactive "P")
eec82323
LMI
8059 (prog1
8060 (let ((articles (gnus-summary-work-articles n)))
8061 (setq gnus-newsgroup-processable nil)
8062 (gnus-summary-limit articles))
8063 (gnus-summary-position-point)))
8064
8065(defun gnus-summary-pop-limit (&optional total)
8066 "Restore the previous limit.
8067If given a prefix, remove all limits."
8068 (interactive "P")
eec82323
LMI
8069 (when total
8070 (setq gnus-newsgroup-limits
8071 (list (mapcar (lambda (h) (mail-header-number h))
8072 gnus-newsgroup-headers))))
8073 (unless gnus-newsgroup-limits
8074 (error "No limit to pop"))
8075 (prog1
8076 (gnus-summary-limit nil 'pop)
8077 (gnus-summary-position-point)))
8078
47b63dfa
SZ
8079(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8080 "Limit the summary buffer to articles that have subjects that match a regexp.
8081If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8082 (interactive
47b63dfa
SZ
8083 (list (read-string (if current-prefix-arg
8084 "Exclude subject (regexp): "
a1506d29 8085 "Limit to subject (regexp): "))
47b63dfa 8086 nil current-prefix-arg))
eec82323
LMI
8087 (unless header
8088 (setq header "subject"))
8089 (when (not (equal "" subject))
8090 (prog1
8091 (let ((articles (gnus-summary-find-matching
a1506d29 8092 (or header "subject") subject 'all nil nil
47b63dfa 8093 not-matching)))
eec82323
LMI
8094 (unless articles
8095 (error "Found no matches for \"%s\"" subject))
8096 (gnus-summary-limit articles))
8097 (gnus-summary-position-point))))
8098
ef6e0ec7 8099(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8100 "Limit the summary buffer to articles that have authors that match a regexp.
8101If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8102 (interactive
47b63dfa
SZ
8103 (list (read-string (if current-prefix-arg
8104 "Exclude author (regexp): "
a1506d29 8105 "Limit to author (regexp): "))
ef6e0ec7
SZ
8106 current-prefix-arg))
8107 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8108
01c52d31
MB
8109(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8110 "Limit the summary buffer to articles with the given RECIPIENT.
8111
8112If NOT-MATCHING, exclude RECIPIENT.
8113
8114To and Cc headers are checked. You need to include them in
8115`nnmail-extra-headers'."
8116 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8117 (interactive
8118 (list (read-string (format "%s recipient (regexp): "
8119 (if current-prefix-arg "Exclude" "Limit to")))
8120 current-prefix-arg))
8121 (when (not (equal "" recipient))
8122 (prog1 (let* ((to
8123 (if (memq 'To nnmail-extra-headers)
8124 (gnus-summary-find-matching
8125 (cons 'extra 'To) recipient 'all nil nil
8126 not-matching)
8127 (gnus-message
8128 1 "`To' isn't present in `nnmail-extra-headers'")
8129 (sit-for 1)
8130 nil))
8131 (cc
8132 (if (memq 'Cc nnmail-extra-headers)
8133 (gnus-summary-find-matching
8134 (cons 'extra 'Cc) recipient 'all nil nil
8135 not-matching)
8136 (gnus-message
8137 1 "`Cc' isn't present in `nnmail-extra-headers'")
8138 (sit-for 1)
8139 nil))
8140 (articles
8141 (if not-matching
8142 ;; We need the numbers that are in both lists:
8143 (mapcar (lambda (a)
8144 (and (memq a to) a))
8145 cc)
8146 (nconc to cc))))
8147 (unless articles
8148 (error "Found no matches for \"%s\"" recipient))
8149 (gnus-summary-limit articles))
8150 (gnus-summary-position-point))))
8151
8152(defun gnus-summary-limit-to-address (address &optional not-matching)
8153 "Limit the summary buffer to articles with the given ADDRESS.
8154
8155If NOT-MATCHING, exclude ADDRESS.
8156
8157To, Cc and From headers are checked. You need to include `To' and `Cc'
8158in `nnmail-extra-headers'."
8159 (interactive
8160 (list (read-string (format "%s address (regexp): "
8161 (if current-prefix-arg "Exclude" "Limit to")))
8162 current-prefix-arg))
8163 (when (not (equal "" address))
8164 (prog1 (let* ((to
8165 (if (memq 'To nnmail-extra-headers)
8166 (gnus-summary-find-matching
8167 (cons 'extra 'To) address 'all nil nil
8168 not-matching)
8169 (gnus-message
8170 1 "`To' isn't present in `nnmail-extra-headers'")
8171 (sit-for 1)
8172 t))
8173 (cc
8174 (if (memq 'Cc nnmail-extra-headers)
8175 (gnus-summary-find-matching
8176 (cons 'extra 'Cc) address 'all nil nil
8177 not-matching)
8178 (gnus-message
8179 1 "`Cc' isn't present in `nnmail-extra-headers'")
8180 (sit-for 1)
8181 t))
8182 (from
8183 (gnus-summary-find-matching "from" address
8184 'all nil nil not-matching))
8185 (articles
8186 (if not-matching
8187 ;; We need the numbers that are in all lists:
8188 (if (eq cc t)
8189 (if (eq to t)
8190 from
8191 (mapcar (lambda (a) (car (memq a from))) to))
8192 (if (eq to t)
8193 (mapcar (lambda (a) (car (memq a from))) cc)
8194 (mapcar (lambda (a) (car (memq a from)))
8195 (mapcar (lambda (a) (car (memq a to)))
8196 cc))))
8197 (nconc (if (eq to t) nil to)
8198 (if (eq cc t) nil cc)
8199 from))))
8200 (unless articles
8201 (error "Found no matches for \"%s\"" address))
8202 (gnus-summary-limit articles))
8203 (gnus-summary-position-point))))
8204
8205(defun gnus-summary-limit-strange-charsets-predicate (header)
8206 (let ((string (concat (mail-header-subject header)
8207 (mail-header-from header)))
8208 charset found)
8209 (dotimes (i (1- (length string)))
8210 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8211 (when (string-match "unicode\\|big\\|japanese" charset)
8212 (setq found t)))
8213 found))
8214
8215(defun gnus-summary-limit-to-predicate (predicate)
8216 "Limit to articles where PREDICATE returns non-nil.
8217PREDICATE will be called with the header structures of the
8218articles."
8219 (let ((articles nil)
8220 (case-fold-search t))
8221 (dolist (header gnus-newsgroup-headers)
8222 (when (funcall predicate header)
8223 (push (mail-header-number header) articles)))
8224 (gnus-summary-limit (nreverse articles))))
8225
eec82323
LMI
8226(defun gnus-summary-limit-to-age (age &optional younger-p)
8227 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8228If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8229articles that are younger than AGE days."
16409b0b
GM
8230 (interactive
8231 (let ((younger current-prefix-arg)
8232 (days-got nil)
8233 days)
8234 (while (not days-got)
8235 (setq days (if younger
23f87bed
MB
8236 (read-string "Limit to articles younger than (in days, older when negative): ")
8237 (read-string
8238 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8239 (when (> (length days) 0)
8240 (setq days (read days)))
8241 (if (numberp days)
23f87bed
MB
8242 (progn
8243 (setq days-got t)
01c52d31
MB
8244 (when (< days 0)
8245 (setq younger (not younger))
8246 (setq days (* days -1))))
16409b0b
GM
8247 (message "Please enter a number.")
8248 (sleep-for 1)))
8249 (list days younger)))
eec82323
LMI
8250 (prog1
8251 (let ((data gnus-newsgroup-data)
16409b0b 8252 (cutoff (days-to-time age))
eec82323
LMI
8253 articles d date is-younger)
8254 (while (setq d (pop data))
8255 (when (and (vectorp (gnus-data-header d))
8256 (setq date (mail-header-date (gnus-data-header d))))
16409b0b
GM
8257 (setq is-younger (time-less-p
8258 (time-since (condition-case ()
8259 (date-to-time date)
8260 (error '(0 0))))
eec82323 8261 cutoff))
6748645f
LMI
8262 (when (if younger-p
8263 is-younger
8264 (not is-younger))
eec82323
LMI
8265 (push (gnus-data-number d) articles))))
8266 (gnus-summary-limit (nreverse articles)))
8267 (gnus-summary-position-point)))
8268
47b63dfa 8269(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8270 "Limit the summary buffer to articles that match an 'extra' header."
8271 (interactive
8272 (let ((header
8273 (intern
23f87bed 8274 (gnus-completing-read-with-default
16409b0b 8275 (symbol-name (car gnus-extra-headers))
47b63dfa 8276 (if current-prefix-arg
81df110a
RF
8277 "Exclude extra header"
8278 "Limit extra header")
16409b0b
GM
8279 (mapcar (lambda (x)
8280 (cons (symbol-name x) x))
8281 gnus-extra-headers)
8282 nil
8283 t))))
8284 (list header
a1506d29 8285 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8286 (if current-prefix-arg "Exclude" "Limit to")
8287 header))
8288 current-prefix-arg)))
16409b0b
GM
8289 (when (not (equal "" regexp))
8290 (prog1
8291 (let ((articles (gnus-summary-find-matching
a1506d29 8292 (cons 'extra header) regexp 'all nil nil
47b63dfa 8293 not-matching)))
16409b0b
GM
8294 (unless articles
8295 (error "Found no matches for \"%s\"" regexp))
8296 (gnus-summary-limit articles))
8297 (gnus-summary-position-point))))
8298
23f87bed
MB
8299(defun gnus-summary-limit-to-display-predicate ()
8300 "Limit the summary buffer to the predicated in the `display' group parameter."
8301 (interactive)
8302 (unless gnus-newsgroup-display
8303 (error "There is no `display' group parameter"))
8304 (let (articles)
8305 (dolist (number gnus-newsgroup-articles)
8306 (when (funcall gnus-newsgroup-display)
8307 (push number articles)))
8308 (gnus-summary-limit articles))
8309 (gnus-summary-position-point))
8310
eec82323
LMI
8311(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8312(make-obsolete
265ac10b 8313 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread "Emacs 20.4")
eec82323
LMI
8314
8315(defun gnus-summary-limit-to-unread (&optional all)
8316 "Limit the summary buffer to articles that are not marked as read.
8317If ALL is non-nil, limit strictly to unread articles."
8318 (interactive "P")
8319 (if all
8320 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8321 (gnus-summary-limit-to-marks
8322 ;; Concat all the marks that say that an article is read and have
8323 ;; those removed.
8324 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8325 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8326 gnus-low-score-mark gnus-expirable-mark
8327 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
8328 gnus-duplicate-mark gnus-souped-mark)
8329 'reverse)))
8330
01c52d31
MB
8331(defun gnus-summary-limit-to-headers (match &optional reverse)
8332 "Limit the summary buffer to articles that have headers that match MATCH.
8333If REVERSE (the prefix), limit to articles that don't match."
8334 (interactive "sMatch headers (regexp): \nP")
8335 (gnus-summary-limit-to-bodies match reverse t))
8336
8337(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8338 "Limit the summary buffer to articles that have bodies that match MATCH.
8339If REVERSE (the prefix), limit to articles that don't match."
8340 (interactive "sMatch body (regexp): \nP")
8341 (let ((articles nil)
8342 (gnus-select-article-hook nil) ;Disable hook.
8343 (gnus-article-prepare-hook nil)
8344 (gnus-use-article-prefetch nil)
8345 (gnus-keep-backlog nil)
8346 (gnus-break-pages nil)
8347 (gnus-summary-display-arrow nil)
8348 (gnus-updated-mode-lines nil)
8349 (gnus-auto-center-summary nil)
8350 (gnus-display-mime-function nil))
8351 (dolist (data gnus-newsgroup-data)
8352 (let (gnus-mark-article-hook)
8353 (gnus-summary-select-article t t nil (gnus-data-number data)))
8354 (save-excursion
8355 (set-buffer gnus-article-buffer)
8356 (article-goto-body)
8357 (let* ((case-fold-search t)
8358 (found (if headersp
8359 (re-search-backward match nil t)
8360 (re-search-forward match nil t))))
8361 (when (or (and found
8362 (not reverse))
8363 (and (not found)
8364 reverse))
8365 (push (gnus-data-number data) articles)))))
8366 (if (not articles)
8367 (message "No messages matched")
8368 (gnus-summary-limit articles)))
8369 (gnus-summary-position-point))
8370
8371(defun gnus-summary-limit-to-singletons (&optional threadsp)
8372 "Limit the summary buffer to articles that aren't part on any thread.
8373If THREADSP (the prefix), limit to articles that are in threads."
8374 (interactive "P")
8375 (let ((articles nil)
8376 thread-articles
8377 threads)
8378 (dolist (thread gnus-newsgroup-threads)
8379 (if (stringp (car thread))
8380 (dolist (thread (cdr thread))
8381 (push thread threads))
8382 (push thread threads)))
8383 (dolist (thread threads)
8384 (setq thread-articles (gnus-articles-in-thread thread))
8385 (when (or (and threadsp
8386 (> (length thread-articles) 1))
8387 (and (not threadsp)
8388 (= (length thread-articles) 1)))
8389 (setq articles (nconc thread-articles articles))))
8390 (if (not articles)
8391 (message "No messages matched")
8392 (gnus-summary-limit articles))
8393 (gnus-summary-position-point)))
8394
8395(defun gnus-summary-limit-to-replied (&optional unreplied)
8396 "Limit the summary buffer to replied articles.
8397If UNREPLIED (the prefix), limit to unreplied articles."
8398 (interactive "P")
8399 (if unreplied
8400 (gnus-summary-limit
8401 (gnus-set-difference gnus-newsgroup-articles
8402 gnus-newsgroup-replied))
8403 (gnus-summary-limit gnus-newsgroup-replied))
8404 (gnus-summary-position-point))
8405
eec82323
LMI
8406(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8407(make-obsolete 'gnus-summary-delete-marked-with
265ac10b 8408 'gnus-summary-limit-exclude-marks "Emacs 20.4")
eec82323
LMI
8409
8410(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8411 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8412If REVERSE, limit the summary buffer to articles that are marked
8413with MARKS. MARKS can either be a string of marks or a list of marks.
8414Returns how many articles were removed."
8415 (interactive "sMarks: ")
8416 (gnus-summary-limit-to-marks marks t))
8417
8418(defun gnus-summary-limit-to-marks (marks &optional reverse)
8419 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8420If REVERSE (the prefix), limit the summary buffer to articles that are
8421not marked with MARKS. MARKS can either be a string of marks or a
8422list of marks.
8423Returns how many articles were removed."
6748645f 8424 (interactive "sMarks: \nP")
eec82323
LMI
8425 (prog1
8426 (let ((data gnus-newsgroup-data)
8427 (marks (if (listp marks) marks
8428 (append marks nil))) ; Transform to list.
8429 articles)
8430 (while data
8431 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8432 (memq (gnus-data-mark (car data)) marks))
8433 (push (gnus-data-number (car data)) articles))
8434 (setq data (cdr data)))
8435 (gnus-summary-limit articles))
8436 (gnus-summary-position-point)))
8437
23f87bed 8438(defun gnus-summary-limit-to-score (score)
eec82323 8439 "Limit to articles with score at or above SCORE."
23f87bed 8440 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8441 (let ((data gnus-newsgroup-data)
8442 articles)
8443 (while data
8444 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8445 score)
8446 (push (gnus-data-number (car data)) articles))
8447 (setq data (cdr data)))
8448 (prog1
8449 (gnus-summary-limit articles)
8450 (gnus-summary-position-point))))
8451
23f87bed
MB
8452(defun gnus-summary-limit-to-unseen ()
8453 "Limit to unseen articles."
8454 (interactive)
8455 (prog1
8456 (gnus-summary-limit gnus-newsgroup-unseen)
8457 (gnus-summary-position-point)))
8458
6748645f 8459(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8460 "Display all the hidden articles that is in the thread with ID in it.
8461When called interactively, ID is the Message-ID of the current
8462article."
6748645f
LMI
8463 (interactive (list (mail-header-id (gnus-summary-article-header))))
8464 (let ((articles (gnus-articles-in-thread
8465 (gnus-id-to-thread (gnus-root-id id)))))
8466 (prog1
8467 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8468 (gnus-summary-limit-include-matching-articles
8469 "subject"
8470 (regexp-quote (gnus-simplify-subject-re
8471 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8472 (gnus-summary-position-point))))
8473
23f87bed
MB
8474(defun gnus-summary-limit-include-matching-articles (header regexp)
8475 "Display all the hidden articles that have HEADERs that match REGEXP."
8476 (interactive (list (read-string "Match on header: ")
8477 (read-string "Regexp: ")))
8478 (let ((articles (gnus-find-matching-articles header regexp)))
8479 (prog1
8480 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8481 (gnus-summary-position-point))))
8482
8483(defun gnus-summary-insert-dormant-articles ()
8484 "Insert all the dormant articles for this group into the current buffer."
8485 (interactive)
8486 (let ((gnus-verbose (max 6 gnus-verbose)))
8487 (if (not gnus-newsgroup-dormant)
db629244 8488 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8489 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8490
01c52d31
MB
8491(defun gnus-summary-insert-ticked-articles ()
8492 "Insert ticked articles for this group into the current buffer."
8493 (interactive)
8494 (let ((gnus-verbose (max 6 gnus-verbose)))
8495 (if (not gnus-newsgroup-marked)
8496 (gnus-message 3 "No ticked articles for this group")
8497 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8498
eec82323 8499(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8500 "Display all the hidden articles that are marked as dormant.
8501Note that this command only works on a subset of the articles currently
8502fetched for this group."
eec82323 8503 (interactive)
eec82323
LMI
8504 (unless gnus-newsgroup-dormant
8505 (error "There are no dormant articles in this group"))
8506 (prog1
8507 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8508 (gnus-summary-position-point)))
8509
8510(defun gnus-summary-limit-exclude-dormant ()
8511 "Hide all dormant articles."
8512 (interactive)
eec82323
LMI
8513 (prog1
8514 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8515 (gnus-summary-position-point)))
8516
8517(defun gnus-summary-limit-exclude-childless-dormant ()
8518 "Hide all dormant articles that have no children."
8519 (interactive)
eec82323
LMI
8520 (let ((data (gnus-data-list t))
8521 articles d children)
8522 ;; Find all articles that are either not dormant or have
8523 ;; children.
8524 (while (setq d (pop data))
8525 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8526 (and (setq children
8527 (gnus-article-children (gnus-data-number d)))
8528 (let (found)
8529 (while children
8530 (when (memq (car children) articles)
8531 (setq children nil
8532 found t))
8533 (pop children))
8534 found)))
8535 (push (gnus-data-number d) articles)))
8536 ;; Do the limiting.
8537 (prog1
8538 (gnus-summary-limit articles)
8539 (gnus-summary-position-point))))
8540
8541(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8542 "Mark all unread excluded articles as read.
8543If ALL, mark even excluded ticked and dormants as read."
8544 (interactive "P")
23f87bed
MB
8545 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8546 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8547 (sort
8548 (mapcar (lambda (h) (mail-header-number h))
8549 gnus-newsgroup-headers)
8550 '<)
23f87bed 8551 gnus-newsgroup-limit))
eec82323 8552 article)
6748645f 8553 (setq gnus-newsgroup-unreads
23f87bed
MB
8554 (gnus-sorted-intersection gnus-newsgroup-unreads
8555 gnus-newsgroup-limit))
eec82323
LMI
8556 (if all
8557 (setq gnus-newsgroup-dormant nil
8558 gnus-newsgroup-marked nil
8559 gnus-newsgroup-reads
8560 (nconc
8561 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8562 gnus-newsgroup-reads))
8563 (while (setq article (pop articles))
8564 (unless (or (memq article gnus-newsgroup-dormant)
8565 (memq article gnus-newsgroup-marked))
8566 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8567
8568(defun gnus-summary-limit (articles &optional pop)
8569 (if pop
8570 ;; We pop the previous limit off the stack and use that.
8571 (setq articles (car gnus-newsgroup-limits)
8572 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8573 ;; We use the new limit, so we push the old limit on the stack.
8574 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8575 ;; Set the limit.
8576 (setq gnus-newsgroup-limit articles)
8577 (let ((total (length gnus-newsgroup-data))
8578 (data (gnus-data-find-list (gnus-summary-article-number)))
8579 (gnus-summary-mark-below nil) ; Inhibit this.
8580 found)
8581 ;; This will do all the work of generating the new summary buffer
8582 ;; according to the new limit.
8583 (gnus-summary-prepare)
8584 ;; Hide any threads, possibly.
23f87bed 8585 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8586 ;; Try to return to the article you were at, or one in the
8587 ;; neighborhood.
8588 (when data
8589 ;; We try to find some article after the current one.
8590 (while data
8591 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8592 (setq data nil
8593 found t))
8594 (setq data (cdr data))))
8595 (unless found
8596 ;; If there is no data, that means that we were after the last
8597 ;; article. The same goes when we can't find any articles
8598 ;; after the current one.
8599 (goto-char (point-max))
8600 (gnus-summary-find-prev))
6748645f 8601 (gnus-set-mode-line 'summary)
eec82323
LMI
8602 ;; We return how many articles were removed from the summary
8603 ;; buffer as a result of the new limit.
8604 (- total (length gnus-newsgroup-data))))
8605
8606(defsubst gnus-invisible-cut-children (threads)
8607 (let ((num 0))
8608 (while threads
8609 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8610 (incf num))
8611 (pop threads))
8612 (< num 2)))
8613
8614(defsubst gnus-cut-thread (thread)
8615 "Go forwards in the thread until we find an article that we want to display."
8616 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8617 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8618 (numberp gnus-fetch-old-headers)
eec82323
LMI
8619 (eq gnus-build-sparse-threads 'some)
8620 (eq gnus-build-sparse-threads 'more))
8621 ;; Deal with old-fetched headers and sparse threads.
8622 (while (and
8623 thread
8624 (or
8625 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8626 (gnus-summary-article-ancient-p
8627 (mail-header-number (car thread))))
6748645f
LMI
8628 (if (or (<= (length (cdr thread)) 1)
8629 (eq gnus-fetch-old-headers 'invisible))
8630 (setq gnus-newsgroup-limit
8631 (delq (mail-header-number (car thread))
8632 gnus-newsgroup-limit)
8633 thread (cadr thread))
8634 (when (gnus-invisible-cut-children (cdr thread))
8635 (let ((th (cdr thread)))
8636 (while th
8637 (if (memq (mail-header-number (caar th))
a8151ef7 8638 gnus-newsgroup-limit)
6748645f
LMI
8639 (setq thread (car th)
8640 th nil)
8641 (setq th (cdr th))))))))))
eec82323
LMI
8642 thread)
8643
8644(defun gnus-cut-threads (threads)
23f87bed 8645 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8646 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8647 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8648 (numberp gnus-fetch-old-headers)
eec82323
LMI
8649 (eq gnus-build-sparse-threads 'some)
8650 (eq gnus-build-sparse-threads 'more))
8651 (let ((th threads))
8652 (while th
8653 (setcar th (gnus-cut-thread (car th)))
8654 (setq th (cdr th)))))
8655 ;; Remove nixed out threads.
8656 (delq nil threads))
8657
8658(defun gnus-summary-initial-limit (&optional show-if-empty)
8659 "Figure out what the initial limit is supposed to be on group entry.
8660This entails weeding out unwanted dormants, low-scored articles,
8661fetch-old-headers verbiage, and so on."
8662 ;; Most groups have nothing to remove.
f394fa25
MB
8663 (unless (or gnus-inhibit-limiting
8664 (and (null gnus-newsgroup-dormant)
8665 (eq gnus-newsgroup-display 'gnus-not-ignore)
8666 (not (eq gnus-fetch-old-headers 'some))
8667 (not (numberp gnus-fetch-old-headers))
8668 (not (eq gnus-fetch-old-headers 'invisible))
8669 (null gnus-summary-expunge-below)
8670 (not (eq gnus-build-sparse-threads 'some))
8671 (not (eq gnus-build-sparse-threads 'more))
8672 (null gnus-thread-expunge-below)
8673 (not gnus-use-nocem)))
eec82323
LMI
8674 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8675 (setq gnus-newsgroup-limit nil)
8676 (mapatoms
8677 (lambda (node)
8678 (unless (car (symbol-value node))
8679 ;; These threads have no parents -- they are roots.
8680 (let ((nodes (cdr (symbol-value node)))
8681 thread)
8682 (while nodes
8683 (if (and gnus-thread-expunge-below
8684 (< (gnus-thread-total-score (car nodes))
8685 gnus-thread-expunge-below))
8686 (gnus-expunge-thread (pop nodes))
8687 (setq thread (pop nodes))
8688 (gnus-summary-limit-children thread))))))
8689 gnus-newsgroup-dependencies)
8690 ;; If this limitation resulted in an empty group, we might
8691 ;; pop the previous limit and use it instead.
8692 (when (and (not gnus-newsgroup-limit)
8693 show-if-empty)
8694 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8695 gnus-newsgroup-limit))
8696
8697(defun gnus-summary-limit-children (thread)
8698 "Return 1 if this subthread is visible and 0 if it is not."
8699 ;; First we get the number of visible children to this thread. This
8700 ;; is done by recursing down the thread using this function, so this
8701 ;; will really go down to a leaf article first, before slowly
8702 ;; working its way up towards the root.
8703 (when thread
04b61ae9 8704 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8705 (children
eec82323
LMI
8706 (if (cdr thread)
8707 (apply '+ (mapcar 'gnus-summary-limit-children
8708 (cdr thread)))
8709 0))
8710 (number (mail-header-number (car thread)))
8711 score)
8712 (if (and
8713 (not (memq number gnus-newsgroup-marked))
8714 (or
8715 ;; If this article is dormant and has absolutely no visible
8716 ;; children, then this article isn't visible.
8717 (and (memq number gnus-newsgroup-dormant)
8718 (zerop children))
8719 ;; If this is "fetch-old-headered" and there is no
8720 ;; visible children, then we don't want this article.
16409b0b
GM
8721 (and (or (eq gnus-fetch-old-headers 'some)
8722 (numberp gnus-fetch-old-headers))
eec82323
LMI
8723 (gnus-summary-article-ancient-p number)
8724 (zerop children))
6748645f
LMI
8725 ;; If this is "fetch-old-headered" and `invisible', then
8726 ;; we don't want this article.
8727 (and (eq gnus-fetch-old-headers 'invisible)
8728 (gnus-summary-article-ancient-p number))
eec82323
LMI
8729 ;; If this is a sparsely inserted article with no children,
8730 ;; we don't want it.
8731 (and (eq gnus-build-sparse-threads 'some)
8732 (gnus-summary-article-sparse-p number)
8733 (zerop children))
8734 ;; If we use expunging, and this article is really
8735 ;; low-scored, then we don't want this article.
8736 (when (and gnus-summary-expunge-below
8737 (< (setq score
8738 (or (cdr (assq number gnus-newsgroup-scored))
8739 gnus-summary-default-score))
8740 gnus-summary-expunge-below))
8741 ;; We increase the expunge-tally here, but that has
8742 ;; nothing to do with the limits, really.
8743 (incf gnus-newsgroup-expunged-tally)
8744 ;; We also mark as read here, if that's wanted.
8745 (when (and gnus-summary-mark-below
8746 (< score gnus-summary-mark-below))
8747 (setq gnus-newsgroup-unreads
8748 (delq number gnus-newsgroup-unreads))
8749 (if gnus-newsgroup-auto-expire
8750 (push number gnus-newsgroup-expirable)
8751 (push (cons number gnus-low-score-mark)
8752 gnus-newsgroup-reads)))
8753 t)
23f87bed
MB
8754 ;; Do the `display' group parameter.
8755 (and gnus-newsgroup-display
8756 (not (funcall gnus-newsgroup-display)))
eec82323 8757 ;; Check NoCeM things.
01c52d31
MB
8758 (when (and gnus-use-nocem
8759 (gnus-nocem-unwanted-article-p
8760 (mail-header-id (car thread))))
8761 (setq gnus-newsgroup-unreads
8762 (delq number gnus-newsgroup-unreads))
8763 t)))
eec82323
LMI
8764 ;; Nope, invisible article.
8765 0
8766 ;; Ok, this article is to be visible, so we add it to the limit
8767 ;; and return 1.
8768 (push number gnus-newsgroup-limit)
8769 1))))
8770
8771(defun gnus-expunge-thread (thread)
8772 "Mark all articles in THREAD as read."
8773 (let* ((number (mail-header-number (car thread))))
8774 (incf gnus-newsgroup-expunged-tally)
8775 ;; We also mark as read here, if that's wanted.
8776 (setq gnus-newsgroup-unreads
8777 (delq number gnus-newsgroup-unreads))
8778 (if gnus-newsgroup-auto-expire
8779 (push number gnus-newsgroup-expirable)
8780 (push (cons number gnus-low-score-mark)
8781 gnus-newsgroup-reads)))
8782 ;; Go recursively through all subthreads.
8783 (mapcar 'gnus-expunge-thread (cdr thread)))
8784
8785;; Summary article oriented commands
8786
8787(defun gnus-summary-refer-parent-article (n)
8788 "Refer parent article N times.
8789If N is negative, go to ancestor -N instead.
8790The difference between N and the number of articles fetched is returned."
8791 (interactive "p")
eec82323
LMI
8792 (let ((skip 1)
8793 error header ref)
8794 (when (not (natnump n))
8795 (setq skip (abs n)
8796 n 1))
8797 (while (and (> n 0)
8798 (not error))
8799 (setq header (gnus-summary-article-header))
8800 (if (and (eq (mail-header-number header)
8801 (cdr gnus-article-current))
8802 (equal gnus-newsgroup-name
8803 (car gnus-article-current)))
8804 ;; If we try to find the parent of the currently
8805 ;; displayed article, then we take a look at the actual
8806 ;; References header, since this is slightly more
8807 ;; reliable than the References field we got from the
8808 ;; server.
c7a91ce1 8809 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8810 (nnheader-narrow-to-headers)
8811 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8812 (when (setq ref (message-fetch-field "in-reply-to"))
8813 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8814 (widen))
8815 (setq ref
8816 ;; It's not the current article, so we take a bet on
8817 ;; the value we got from the server.
8818 (mail-header-references header)))
8819 (if (and ref
8820 (not (equal ref "")))
8821 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8822 (gnus-message 1 "Couldn't find parent"))
8823 (gnus-message 1 "No references in article %d"
8824 (gnus-summary-article-number))
8825 (setq error t))
8826 (decf n))
8827 (gnus-summary-position-point)
8828 n))
8829
8830(defun gnus-summary-refer-references ()
8831 "Fetch all articles mentioned in the References header.
6748645f 8832Return the number of articles fetched."
eec82323 8833 (interactive)
eec82323
LMI
8834 (let ((ref (mail-header-references (gnus-summary-article-header)))
8835 (current (gnus-summary-article-number))
8836 (n 0))
8837 (if (or (not ref)
8838 (equal ref ""))
8839 (error "No References in the current article")
8840 ;; For each Message-ID in the References header...
8841 (while (string-match "<[^>]*>" ref)
8842 (incf n)
8843 ;; ... fetch that article.
8844 (gnus-summary-refer-article
8845 (prog1 (match-string 0 ref)
8846 (setq ref (substring ref (match-end 0))))))
8847 (gnus-summary-goto-subject current)
8848 (gnus-summary-position-point)
8849 n)))
8850
6748645f
LMI
8851(defun gnus-summary-refer-thread (&optional limit)
8852 "Fetch all articles in the current thread.
8853If LIMIT (the numerical prefix), fetch that many old headers instead
8854of what's specified by the `gnus-refer-thread-limit' variable."
8855 (interactive "P")
8856 (let ((id (mail-header-id (gnus-summary-article-header)))
8857 (limit (if limit (prefix-numeric-value limit)
8858 gnus-refer-thread-limit)))
6748645f
LMI
8859 (unless (eq gnus-fetch-old-headers 'invisible)
8860 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8861 ;; Retrieve the headers and read them in.
23f87bed
MB
8862 (if (eq (if (numberp limit)
8863 (gnus-retrieve-headers
8864 (list (min
8865 (+ (mail-header-number
8866 (gnus-summary-article-header))
8867 limit)
8868 gnus-newsgroup-end))
8869 gnus-newsgroup-name (* limit 2))
8870 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8871 ;; headers.
8872 (gnus-retrieve-headers (list gnus-newsgroup-end)
8873 gnus-newsgroup-name limit))
6748645f
LMI
8874 'nov)
8875 (gnus-build-all-threads)
23f87bed 8876 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8877 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8878 (gnus-summary-limit-include-thread id)))
8879
16409b0b
GM
8880(defun gnus-summary-refer-article (message-id)
8881 "Fetch an article specified by MESSAGE-ID."
8882 (interactive "sMessage-ID: ")
eec82323
LMI
8883 (when (and (stringp message-id)
8884 (not (zerop (length message-id))))
23f87bed 8885 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8886 ;; Construct the correct Message-ID if necessary.
8887 ;; Suggested by tale@pawl.rpi.edu.
8888 (unless (string-match "^<" message-id)
8889 (setq message-id (concat "<" message-id)))
8890 (unless (string-match ">$" message-id)
8891 (setq message-id (concat message-id ">")))
23f87bed
MB
8892 ;; People often post MIDs from URLs, so unhex it:
8893 (unless (string-match "@" message-id)
8894 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8895 (let* ((header (gnus-id-to-header message-id))
8896 (sparse (and header
8897 (gnus-summary-article-sparse-p
a8151ef7
LMI
8898 (mail-header-number header))
8899 (memq (mail-header-number header)
16409b0b
GM
8900 gnus-newsgroup-limit)))
8901 number)
6748645f
LMI
8902 (cond
8903 ;; If the article is present in the buffer we just go to it.
8904 ((and header
8905 (or (not (gnus-summary-article-sparse-p
8906 (mail-header-number header)))
8907 sparse))
8908 (prog1
8909 (gnus-summary-goto-article
8910 (mail-header-number header) nil t)
8911 (when sparse
8912 (gnus-summary-update-article (mail-header-number header)))))
8913 (t
16409b0b
GM
8914 ;; We fetch the article.
8915 (catch 'found
8916 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8917 (when (and (gnus-check-server gnus-override-method)
8918 ;; Fetch the header,
8919 (setq number (gnus-summary-insert-subject message-id)))
8920 ;; and display the article.
eec82323 8921 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8922 (throw 'found t)))
8923 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8924
8925(defun gnus-refer-article-methods ()
8f688cb0 8926 "Return a list of referable methods."
16409b0b
GM
8927 (cond
8928 ;; No method, so we default to current and native.
8929 ((null gnus-refer-article-method)
8930 (list gnus-current-select-method gnus-select-method))
8931 ;; Current.
8932 ((eq 'current gnus-refer-article-method)
8933 (list gnus-current-select-method))
8934 ;; List of select methods.
d4dfaa19
DL
8935 ((not (and (symbolp (car gnus-refer-article-method))
8936 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8937 (let (out)
8938 (dolist (method gnus-refer-article-method)
8939 (push (if (eq 'current method)
8940 gnus-current-select-method
8941 method)
8942 out))
8943 (nreverse out)))
8944 ;; One single select method.
8945 (t
8946 (list gnus-refer-article-method))))
6748645f
LMI
8947
8948(defun gnus-summary-edit-parameters ()
8949 "Edit the group parameters of the current group."
8950 (interactive)
8951 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8952
16409b0b
GM
8953(defun gnus-summary-customize-parameters ()
8954 "Customize the group parameters of the current group."
8955 (interactive)
8956 (gnus-group-customize gnus-newsgroup-name))
8957
eec82323
LMI
8958(defun gnus-summary-enter-digest-group (&optional force)
8959 "Enter an nndoc group based on the current article.
8960If FORCE, force a digest interpretation. If not, try
8961to guess what the document format is."
8962 (interactive "P")
eec82323 8963 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8964 (save-window-excursion
8965 (save-excursion
8966 (let (gnus-article-prepare-hook
8967 gnus-display-mime-function
8968 gnus-break-pages)
8969 (gnus-summary-select-article))))
eec82323
LMI
8970 (setq gnus-current-window-configuration conf)
8971 (let* ((name (format "%s-%d"
8972 (gnus-group-prefixed-name
8973 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8974 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8975 gnus-current-article)))
8976 (ogroup gnus-newsgroup-name)
8977 (params (append (gnus-info-params (gnus-get-info ogroup))
8978 (list (cons 'to-group ogroup))
23f87bed 8979 (list (cons 'parent-group ogroup))
eec82323
LMI
8980 (list (cons 'save-article-group ogroup))))
8981 (case-fold-search t)
8982 (buf (current-buffer))
16409b0b 8983 dig to-address)
c7a91ce1 8984 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8985 ;; Have the digest group inherit the main mail address of
8986 ;; the parent article.
23f87bed
MB
8987 (when (setq to-address (or (gnus-fetch-field "reply-to")
8988 (gnus-fetch-field "from")))
343d6628
MB
8989 (setq params
8990 (append
8991 (list (cons 'to-address
8992 (funcall gnus-decode-encoded-address-function
8993 to-address))))))
eec82323
LMI
8994 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8995 (insert-buffer-substring gnus-original-article-buffer)
8996 ;; Remove lines that may lead nndoc to misinterpret the
8997 ;; document type.
8998 (narrow-to-region
8999 (goto-char (point-min))
9000 (or (search-forward "\n\n" nil t) (point)))
9001 (goto-char (point-min))
16409b0b 9002 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9003 (widen))
9004 (unwind-protect
23f87bed 9005 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
9006 (gnus-newsgroup-ephemeral-ignored-charsets
9007 gnus-newsgroup-ignored-charsets))
9008 (gnus-group-read-ephemeral-group
9009 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
9010 (nndoc-article-type
23f87bed
MB
9011 ,(if force 'mbox 'guess)))
9012 t nil nil nil
9013 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
9014 "ADAPT")))))
16409b0b 9015 ;; Make all postings to this group go to the parent group.
23f87bed
MB
9016 (nconc (gnus-info-params (gnus-get-info name))
9017 params)
9018 ;; Couldn't select this doc group.
9019 (switch-to-buffer buf)
9020 (gnus-set-global-variables)
9021 (gnus-configure-windows 'summary)
9022 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
9023 (kill-buffer dig)))))
9024
9025(defun gnus-summary-read-document (n)
9026 "Open a new group based on the current article(s).
9027This will allow you to read digests and other similar
9028documents as newsgroups.
9029Obeys the standard process/prefix convention."
9030 (interactive "P")
01c52d31 9031 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
9032 (params (append (gnus-info-params (gnus-get-info ogroup))
9033 (list (cons 'to-group ogroup))))
01c52d31
MB
9034 group egroup groups vgroup)
9035 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
9036 (setq group (format "%s-%d" gnus-newsgroup-name article))
9037 (gnus-summary-remove-process-mark article)
9038 (when (gnus-summary-display-article article)
9039 (save-excursion
16409b0b 9040 (with-temp-buffer
eec82323
LMI
9041 (insert-buffer-substring gnus-original-article-buffer)
9042 ;; Remove some headers that may lead nndoc to make
9043 ;; the wrong guess.
9044 (message-narrow-to-head)
9045 (goto-char (point-min))
01c52d31 9046 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9047 (widen)
9048 (if (setq egroup
9049 (gnus-group-read-ephemeral-group
9050 group `(nndoc ,group (nndoc-address ,(current-buffer))
9051 (nndoc-article-type guess))
9052 t nil t))
9053 (progn
c7a91ce1 9054 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9055 (nconc (gnus-info-params (gnus-get-info egroup))
9056 params)
9057 (push egroup groups))
9058 ;; Couldn't select this doc group.
9059 (gnus-error 3 "Article couldn't be entered"))))))
9060 ;; Now we have selected all the documents.
9061 (cond
9062 ((not groups)
9063 (error "None of the articles could be interpreted as documents"))
9064 ((gnus-group-read-ephemeral-group
9065 (setq vgroup (format
9066 "nnvirtual:%s-%s" gnus-newsgroup-name
9067 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9068 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9069 t
9070 (cons (current-buffer) 'summary)))
9071 (t
9072 (error "Couldn't select virtual nndoc group")))))
9073
9074(defun gnus-summary-isearch-article (&optional regexp-p)
9075 "Do incremental search forward on the current article.
9076If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9077 (interactive "P")
eec82323
LMI
9078 (gnus-summary-select-article)
9079 (gnus-configure-windows 'article)
9080 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9081 (save-restriction
9082 (widen)
9083 (isearch-forward regexp-p))))
eec82323 9084
01c52d31
MB
9085(defun gnus-summary-repeat-search-article-forward ()
9086 "Repeat the previous search forwards."
9087 (interactive)
9088 (unless gnus-last-search-regexp
9089 (error "No previous search"))
9090 (gnus-summary-search-article-forward gnus-last-search-regexp))
9091
9092(defun gnus-summary-repeat-search-article-backward ()
9093 "Repeat the previous search backwards."
9094 (interactive)
9095 (unless gnus-last-search-regexp
9096 (error "No previous search"))
9097 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9098
eec82323
LMI
9099(defun gnus-summary-search-article-forward (regexp &optional backward)
9100 "Search for an article containing REGEXP forward.
9101If BACKWARD, search backward instead."
9102 (interactive
9103 (list (read-string
9104 (format "Search article %s (regexp%s): "
9105 (if current-prefix-arg "backward" "forward")
9106 (if gnus-last-search-regexp
9107 (concat ", default " gnus-last-search-regexp)
9108 "")))
9109 current-prefix-arg))
eec82323
LMI
9110 (if (string-equal regexp "")
9111 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9112 (setq gnus-last-search-regexp regexp)
9113 (setq gnus-article-before-search gnus-current-article))
9114 ;; Intentionally set gnus-last-article.
9115 (setq gnus-last-article gnus-article-before-search)
9116 (let ((gnus-last-article gnus-last-article))
9117 (if (gnus-summary-search-article regexp backward)
9118 (gnus-summary-show-thread)
abc40aab 9119 (signal 'search-failed (list regexp)))))
eec82323
LMI
9120
9121(defun gnus-summary-search-article-backward (regexp)
9122 "Search for an article containing REGEXP backward."
9123 (interactive
9124 (list (read-string
9125 (format "Search article backward (regexp%s): "
9126 (if gnus-last-search-regexp
9127 (concat ", default " gnus-last-search-regexp)
9128 "")))))
9129 (gnus-summary-search-article-forward regexp 'backward))
9130
9131(defun gnus-summary-search-article (regexp &optional backward)
9132 "Search for an article containing REGEXP.
9133Optional argument BACKWARD means do search for backward.
9134`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9135 ;; We have to require this here to make sure that the following
9136 ;; dynamic binding isn't shadowed by autoloading.
9137 (require 'gnus-async)
16409b0b 9138 (require 'gnus-art)
eec82323 9139 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9140 (gnus-article-prepare-hook nil)
eec82323
LMI
9141 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9142 (gnus-use-article-prefetch nil)
9143 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9144 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9145 (gnus-visual nil)
9146 (gnus-keep-backlog nil)
9147 (gnus-break-pages nil)
9148 (gnus-summary-display-arrow nil)
9149 (gnus-updated-mode-lines nil)
9150 (gnus-auto-center-summary nil)
eec82323 9151 (sum (current-buffer))
16409b0b 9152 (gnus-display-mime-function nil)
eec82323
LMI
9153 (found nil)
9154 point)
9155 (gnus-save-hidden-threads
9156 (gnus-summary-select-article)
9157 (set-buffer gnus-article-buffer)
16409b0b 9158 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9159 (when backward
9160 (forward-line -1))
9161 (while (not found)
9162 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9163 (if (if backward
9164 (re-search-backward regexp nil t)
9165 (re-search-forward regexp nil t))
9166 ;; We found the regexp.
9167 (progn
9168 (setq found 'found)
9169 (beginning-of-line)
9170 (set-window-start
9171 (get-buffer-window (current-buffer))
9172 (point))
9173 (forward-line 1)
16409b0b
GM
9174 (set-window-point
9175 (get-buffer-window (current-buffer))
9176 (point))
eec82323
LMI
9177 (set-buffer sum)
9178 (setq point (point)))
9179 ;; We didn't find it, so we go to the next article.
9180 (set-buffer sum)
9181 (setq found 'not)
9182 (while (eq found 'not)
9183 (if (not (if backward (gnus-summary-find-prev)
9184 (gnus-summary-find-next)))
9185 ;; No more articles.
9186 (setq found t)
9187 ;; Select the next article and adjust point.
9188 (unless (gnus-summary-article-sparse-p
9189 (gnus-summary-article-number))
9190 (setq found nil)
9191 (gnus-summary-select-article)
9192 (set-buffer gnus-article-buffer)
9193 (widen)
9194 (goto-char (if backward (point-max) (point-min))))))))
9195 (gnus-message 7 ""))
9196 ;; Return whether we found the regexp.
9197 (when (eq found 'found)
9198 (goto-char point)
9199 (gnus-summary-show-thread)
9200 (gnus-summary-goto-subject gnus-current-article)
9201 (gnus-summary-position-point)
9202 t)))
9203
23f87bed
MB
9204(defun gnus-find-matching-articles (header regexp)
9205 "Return a list of all articles that match REGEXP on HEADER.
9206This search includes all articles in the current group that Gnus has
9207fetched headers for, whether they are displayed or not."
9208 (let ((articles nil)
c7a91ce1 9209 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9210 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9211 (case-fold-search t))
9212 (dolist (header gnus-newsgroup-headers)
9213 (when (string-match regexp (funcall func header))
9214 (push (mail-header-number header) articles)))
9215 (nreverse articles)))
9216
eec82323 9217(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9218 not-case-fold not-matching)
eec82323
LMI
9219 "Return a list of all articles that match REGEXP on HEADER.
9220The search stars on the current article and goes forwards unless
9221BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9222If UNREAD is non-nil, only unread articles will
9223be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9224in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9225not match REGEXP on HEADER."
9226 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9227 articles d func)
9228 (if (consp header)
9229 (if (eq (car header) 'extra)
9230 (setq func
9231 `(lambda (h)
9232 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9233 "")))
9234 (error "%s is an invalid header" header))
9235 (unless (fboundp (intern (concat "mail-header-" header)))
9236 (error "%s is not a valid header" header))
9237 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9238 (dolist (d (if (eq backward 'all)
9239 gnus-newsgroup-data
9240 (gnus-data-find-list
9241 (gnus-summary-article-number)
9242 (gnus-data-list backward))))
9243 (when (and (or (not unread) ; We want all articles...
9244 (gnus-data-unread-p d)) ; Or just unreads.
9245 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9246 (if not-matching
a1506d29 9247 (not (string-match
47b63dfa
SZ
9248 regexp
9249 (funcall func (gnus-data-header d))))
9250 (string-match regexp
9251 (funcall func (gnus-data-header d)))))
9252 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9253 (nreverse articles)))
9254
9255(defun gnus-summary-execute-command (header regexp command &optional backward)
9256 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9257If HEADER is an empty string (or nil), the match is done on the entire
9258article. If BACKWARD (the prefix) is non-nil, search backward instead."
9259 (interactive
9260 (list (let ((completion-ignore-case t))
9261 (completing-read
9262 "Header name: "
23f87bed
MB
9263 (mapcar (lambda (header) (list (format "%s" header)))
9264 (append
9265 '("Number" "Subject" "From" "Lines" "Date"
9266 "Message-ID" "Xref" "References" "Body")
9267 gnus-extra-headers))
eec82323
LMI
9268 nil 'require-match))
9269 (read-string "Regexp: ")
9270 (read-key-sequence "Command: ")
9271 current-prefix-arg))
9272 (when (equal header "Body")
9273 (setq header ""))
eec82323
LMI
9274 ;; Hidden thread subtrees must be searched as well.
9275 (gnus-summary-show-all-threads)
9276 ;; We don't want to change current point nor window configuration.
9277 (save-excursion
9278 (save-window-excursion
23f87bed
MB
9279 (let (gnus-visual
9280 gnus-treat-strip-trailing-blank-lines
9281 gnus-treat-strip-leading-blank-lines
9282 gnus-treat-strip-multiple-blank-lines
9283 gnus-treat-hide-boring-headers
9284 gnus-treat-fold-newsgroups
9285 gnus-article-prepare-hook)
9286 (gnus-message 6 "Executing %s..." (key-description command))
9287 ;; We'd like to execute COMMAND interactively so as to give arguments.
9288 (gnus-execute header regexp
9289 `(call-interactively ',(key-binding command))
9290 backward)
9291 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9292
9293(defun gnus-summary-beginning-of-article ()
9294 "Scroll the article back to the beginning."
9295 (interactive)
eec82323
LMI
9296 (gnus-summary-select-article)
9297 (gnus-configure-windows 'article)
9298 (gnus-eval-in-buffer-window gnus-article-buffer
9299 (widen)
9300 (goto-char (point-min))
23f87bed 9301 (when gnus-break-pages
eec82323
LMI
9302 (gnus-narrow-to-page))))
9303
9304(defun gnus-summary-end-of-article ()
9305 "Scroll to the end of the article."
9306 (interactive)
eec82323
LMI
9307 (gnus-summary-select-article)
9308 (gnus-configure-windows 'article)
9309 (gnus-eval-in-buffer-window gnus-article-buffer
9310 (widen)
9311 (goto-char (point-max))
9312 (recenter -3)
23f87bed 9313 (when gnus-break-pages
eec82323
LMI
9314 (gnus-narrow-to-page))))
9315
23f87bed
MB
9316(defun gnus-summary-print-truncate-and-quote (string &optional len)
9317 "Truncate to LEN and quote all \"(\"'s in STRING."
9318 (gnus-replace-in-string (if (and len (> (length string) len))
9319 (substring string 0 len)
9320 string)
9321 "[()]" "\\\\\\&"))
9322
6748645f 9323(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9324 "Generate and print a PostScript image of the process-marked (mail) articles.
9325
9326If used interactively, print the current article if none are
9327process-marked. With prefix arg, prompt the user for the name of the
9328file to save in.
6748645f 9329
23f87bed
MB
9330When used from Lisp, accept two optional args FILENAME and N. N means
9331to print the next N articles. If N is negative, print the N previous
9332articles. If N is nil and articles have been marked with the process
9333mark, print these instead.
eec82323 9334
16409b0b 9335If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9336printer. If FILENAME is a string, save the PostScript image in a file with
9337that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9338to save in."
676a7cc9 9339 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9340 (dolist (article (gnus-summary-work-articles n))
9341 (gnus-summary-select-article nil nil 'pseudo article)
9342 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9343 (gnus-print-buffer))
676a7cc9
SZ
9344 (gnus-summary-remove-process-mark article))
9345 (ps-despool filename))
eec82323 9346
23f87bed
MB
9347(defun gnus-print-buffer ()
9348 (let ((buffer (generate-new-buffer " *print*")))
9349 (unwind-protect
9350 (progn
9351 (copy-to-buffer buffer (point-min) (point-max))
9352 (set-buffer buffer)
9353 (gnus-remove-text-with-property 'gnus-decoration)
9354 (when (gnus-visual-p 'article-highlight 'highlight)
9355 ;; Copy-to-buffer doesn't copy overlay. So redo
9356 ;; highlight.
9357 (let ((gnus-article-buffer buffer))
9358 (gnus-article-highlight-citation t)
9359 (gnus-article-highlight-signature)
9360 (gnus-article-emphasize)
9361 (gnus-article-delete-invisible-text)))
9362 (let ((ps-left-header
9363 (list
9364 (concat "("
9365 (gnus-summary-print-truncate-and-quote
9366 (mail-header-subject gnus-current-headers)
9367 66) ")")
9368 (concat "("
9369 (gnus-summary-print-truncate-and-quote
9370 (mail-header-from gnus-current-headers)
9371 45) ")")))
9372 (ps-right-header
9373 (list
9374 "/pagenumberstring load"
9375 (concat "("
9376 (mail-header-date gnus-current-headers) ")"))))
9377 (gnus-run-hooks 'gnus-ps-print-hook)
9378 (save-excursion
a7b50e1c 9379 (if ps-print-color-p
23f87bed
MB
9380 (ps-spool-buffer-with-faces)
9381 (ps-spool-buffer)))))
9382 (kill-buffer buffer))))
9383
eec82323 9384(defun gnus-summary-show-article (&optional arg)
23f87bed 9385 "Force redisplaying of the current article.
16409b0b
GM
9386If ARG (the prefix) is a number, show the article with the charset
9387defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9388input.
16409b0b 9389If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9390without any article massaging functions being run. Normally, the key
9391strokes are `C-u g'."
eec82323 9392 (interactive "P")
16409b0b
GM
9393 (cond
9394 ((numberp arg)
23f87bed 9395 (gnus-summary-show-article t)
16409b0b
GM
9396 (let ((gnus-newsgroup-charset
9397 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9398 (mm-read-coding-system
9399 "View as charset: " ;; actually it is coding system.
01c52d31 9400 (with-current-buffer gnus-article-buffer
23f87bed 9401 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9402 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9403 (gnus-summary-select-article nil 'force)
9404 (let ((deps gnus-newsgroup-dependencies)
9405 head header lines)
c7a91ce1 9406 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9407 (save-restriction
9408 (message-narrow-to-head)
9409 (setq head (buffer-string))
9410 (goto-char (point-min))
9411 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9412 (goto-char (point-max))
9413 (widen)
9414 (setq lines (1- (count-lines (point) (point-max))))))
9415 (with-temp-buffer
9416 (insert (format "211 %d Article retrieved.\n"
9417 (cdr gnus-article-current)))
9418 (insert head)
9419 (if lines (insert (format "Lines: %d\n" lines)))
9420 (insert ".\n")
9421 (let ((nntp-server-buffer (current-buffer)))
9422 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9423 (gnus-data-set-header
9424 (gnus-data-find (cdr gnus-article-current))
9425 header)
9426 (gnus-summary-update-article-line
9427 (cdr gnus-article-current) header)
9428 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9429 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9430 ((not arg)
9431 ;; Select the article the normal way.
9432 (gnus-summary-select-article nil 'force))
9433 (t
9434 ;; We have to require this here to make sure that the following
9435 ;; dynamic binding isn't shadowed by autoloading.
9436 (require 'gnus-async)
9437 (require 'gnus-art)
eec82323
LMI
9438 ;; Bind the article treatment functions to nil.
9439 (let ((gnus-have-all-headers t)
eec82323 9440 gnus-article-prepare-hook
16409b0b
GM
9441 gnus-article-decode-hook
9442 gnus-display-mime-function
9443 gnus-break-pages)
9444 ;; Destroy any MIME parts.
9445 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9446 (with-current-buffer gnus-article-buffer
16409b0b
GM
9447 (mm-destroy-parts gnus-article-mime-handles)
9448 ;; Set it to nil for safety reason.
9449 (setq gnus-article-mime-handle-alist nil)
9450 (setq gnus-article-mime-handles nil)))
9451 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9452 (gnus-summary-goto-subject gnus-current-article)
9453 (gnus-summary-position-point))
9454
23f87bed
MB
9455(defun gnus-summary-show-raw-article ()
9456 "Show the raw article without any article massaging functions being run."
9457 (interactive)
9458 (gnus-summary-show-article t))
9459
eec82323
LMI
9460(defun gnus-summary-verbose-headers (&optional arg)
9461 "Toggle permanent full header display.
9462If ARG is a positive number, turn header display on.
9463If ARG is a negative number, turn header display off."
9464 (interactive "P")
eec82323
LMI
9465 (setq gnus-show-all-headers
9466 (cond ((or (not (numberp arg))
9467 (zerop arg))
9468 (not gnus-show-all-headers))
9469 ((natnump arg)
9470 t)))
9471 (gnus-summary-show-article))
9472
9473(defun gnus-summary-toggle-header (&optional arg)
9474 "Show the headers if they are hidden, or hide them if they are shown.
9475If ARG is a positive number, show the entire header.
9476If ARG is a negative number, hide the unwanted header lines."
9477 (interactive "P")
23f87bed
MB
9478 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9479 (get-buffer-window gnus-article-buffer t))))
9480 (with-current-buffer gnus-article-buffer
9481 (widen)
9482 (article-narrow-to-head)
c7a91ce1 9483 (let* ((inhibit-read-only t)
16409b0b 9484 (inhibit-point-motion-hooks t)
23f87bed
MB
9485 (hidden (if (numberp arg)
9486 (>= arg 0)
f0096211
MB
9487 (or (not (looking-at "[^ \t\n]+:"))
9488 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9489 s e)
9490 (delete-region (point-min) (point-max))
667e0ba6
SM
9491 (with-current-buffer gnus-original-article-buffer
9492 (goto-char (setq s (point-min)))
23f87bed
MB
9493 (setq e (if (search-forward "\n\n" nil t)
9494 (1- (point))
9495 (point-max))))
667e0ba6 9496 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9497 (run-hooks 'gnus-article-decode-hook)
9498 (if hidden
9499 (let ((gnus-treat-hide-headers nil)
9500 (gnus-treat-hide-boring-headers nil))
9501 (gnus-delete-wash-type 'headers)
9502 (gnus-treat-article 'head))
9503 (gnus-treat-article 'head))
9504 (widen)
9505 (if window
9506 (set-window-start window (goto-char (point-min))))
9507 (if gnus-break-pages
9508 (gnus-narrow-to-page)
9509 (when (gnus-visual-p 'page-marker)
c7a91ce1 9510 (let ((inhibit-read-only t))
23f87bed
MB
9511 (gnus-remove-text-with-property 'gnus-prev)
9512 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9513 (gnus-set-mode-line 'article)))))
eec82323
LMI
9514
9515(defun gnus-summary-show-all-headers ()
9516 "Make all header lines visible."
9517 (interactive)
23f87bed 9518 (gnus-summary-toggle-header 1))
eec82323 9519
eec82323
LMI
9520(defun gnus-summary-caesar-message (&optional arg)
9521 "Caesar rotate the current article by 13.
01c52d31
MB
9522With a non-numerical prefix, also rotate headers. A numerical
9523prefix specifies how many places to rotate each letter forward."
eec82323 9524 (interactive "P")
eec82323
LMI
9525 (gnus-summary-select-article)
9526 (let ((mail-header-separator ""))
9527 (gnus-eval-in-buffer-window gnus-article-buffer
9528 (save-restriction
9529 (widen)
9530 (let ((start (window-start))
c7a91ce1 9531 (inhibit-read-only t))
01c52d31
MB
9532 (if (equal arg '(4))
9533 (message-caesar-buffer-body nil t)
9534 (message-caesar-buffer-body arg))
ff4d3926
MB
9535 (set-window-start (get-buffer-window (current-buffer)) start)))))
9536 ;; Create buttons and stuff...
9537 (gnus-treat-article nil))
eec82323 9538
704f1663
GM
9539(declare-function idna-to-unicode "ext:idna" (str))
9540
01c52d31
MB
9541(defun gnus-summary-idna-message (&optional arg)
9542 "Decode IDNA encoded domain names in the current articles.
9543IDNA encoded domain names looks like `xn--bar'. If a string
9544remain unencoded after running this function, it is likely an
9545invalid IDNA string (`xn--bar' is invalid).
9546
9547You must have GNU Libidn (`http://www.gnu.org/software/libidn/')
9548installed for this command to work."
9549 (interactive "P")
9550 (if (not (and (condition-case nil (require 'idna)
9551 (file-error))
9552 (mm-coding-system-p 'utf-8)
9553 (executable-find (symbol-value 'idna-program))))
9554 (gnus-message
9555 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9556 (gnus-summary-select-article)
9557 (let ((mail-header-separator ""))
9558 (gnus-eval-in-buffer-window gnus-article-buffer
9559 (save-restriction
9560 (widen)
9561 (let ((start (window-start))
9562 buffer-read-only)
9563 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9564 (replace-match (idna-to-unicode (match-string 1))))
9565 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9566
9567(defun gnus-summary-morse-message (&optional arg)
9568 "Morse decode the current article."
9569 (interactive "P")
9570 (gnus-summary-select-article)
9571 (let ((mail-header-separator ""))
9572 (gnus-eval-in-buffer-window gnus-article-buffer
9573 (save-excursion
9574 (save-restriction
9575 (widen)
9576 (let ((pos (window-start))
c7a91ce1 9577 (inhibit-read-only t))
23f87bed
MB
9578 (goto-char (point-min))
9579 (when (message-goto-body)
9580 (gnus-narrow-to-body))
9581 (goto-char (point-min))
01c52d31 9582