Cast SPECPDL_INDEX to int, and do further EMACS_INT/int cleanups.
[bpt/emacs.git] / lisp / gnus / gnus-sum.el
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eec82323 1;;; gnus-sum.el --- summary mode commands for Gnus
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2
3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
114f9c96 4;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
eec82323 5
6748645f 6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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7;; Keywords: news
8
9;; This file is part of GNU Emacs.
10
5e809f55 11;; GNU Emacs is free software: you can redistribute it and/or modify
eec82323 12;; it under the terms of the GNU General Public License as published by
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13;; the Free Software Foundation, either version 3 of the License, or
14;; (at your option) any later version.
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15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
01ccbb85 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
5e809f55 22;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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23
24;;; Commentary:
25
26;;; Code:
27
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28;; For Emacs < 22.2.
29(eval-and-compile
30 (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
23f87bed 31(eval-when-compile
9efa445f 32 (require 'cl))
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33(eval-when-compile
34 (when (featurep 'xemacs)
35 (require 'easy-mmode))) ; for `define-minor-mode'
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36
37(defvar tool-bar-mode)
38(defvar gnus-tmp-header)
5ab7173c 39
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40(require 'gnus)
41(require 'gnus-group)
42(require 'gnus-spec)
43(require 'gnus-range)
44(require 'gnus-int)
45(require 'gnus-undo)
6748645f 46(require 'gnus-util)
18c06a99 47(require 'gmm-utils)
16409b0b 48(require 'mm-decode)
08c9a385 49(require 'nnoo)
23f87bed 50
6748645f 51(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
d4dfaa19 52(autoload 'gnus-cache-write-active "gnus-cache")
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53(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
54(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
531e5812 55(autoload 'gnus-pick-line-number "gnus-salt" nil t)
08c9a385 56(autoload 'mm-uu-dissect "mm-uu")
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57(autoload 'gnus-article-outlook-deuglify-article "deuglify"
58 "Deuglify broken Outlook (Express) articles and redisplay."
59 t)
60(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
61(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
62(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
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63
64(defcustom gnus-kill-summary-on-exit t
65 "*If non-nil, kill the summary buffer when you exit from it.
66If nil, the summary will become a \"*Dead Summary*\" buffer, and
67it will be killed sometime later."
68 :group 'gnus-summary-exit
69 :type 'boolean)
70
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71(defcustom gnus-summary-next-group-on-exit t
72 "If non-nil, go to the next unread newsgroup on summary exit.
73See `gnus-group-goto-unread'."
74 :link '(custom-manual "(gnus)Group Maneuvering")
75 :group 'gnus-summary-exit
330f707b 76 :version "23.1" ;; No Gnus
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77 :type 'boolean)
78
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79(defcustom gnus-summary-stop-at-end-of-message nil
80 "If non-nil, don't select the next message when using `SPC'."
81 :link '(custom-manual "(gnus)Group Maneuvering")
82 :group 'gnus-summary-maneuvering
1a10d421 83 :version "24.1"
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84 :type 'boolean)
85
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86(defcustom gnus-fetch-old-headers nil
87 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
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88If an unread article in the group refers to an older, already
89read (or just marked as read) article, the old article will not
90normally be displayed in the Summary buffer. If this variable is
91t, Gnus will attempt to grab the headers to the old articles, and
92thereby build complete threads. If it has the value `some', all
93old headers will be fetched but only enough headers to connect
94otherwise loose threads will be displayed. This variable can
95also be a number. In that case, no more than that number of old
96headers will be fetched. If it has the value `invisible', all
6748645f 97old headers will be fetched, but none will be displayed.
eec82323 98
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99The server has to support NOV for any of this to work.
100
101This feature can seriously impact performance it ignores all
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102locally cached header entries. Setting it to t for groups for a
103server that doesn't expire articles (such as news.gmane.org),
104leads to very slow summary generation."
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105 :group 'gnus-thread
106 :type '(choice (const :tag "off" nil)
1232b9cb 107 (const :tag "on" t)
eec82323 108 (const some)
1232b9cb 109 (const invisible)
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110 number
111 (sexp :menu-tag "other" t)))
112
01c52d31 113(defcustom gnus-refer-thread-limit 500
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114 "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
115If t, fetch all the available old headers."
116 :group 'gnus-thread
117 :type '(choice number
118 (sexp :menu-tag "other" t)))
119
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120(defcustom gnus-summary-make-false-root 'adopt
121 "*nil means that Gnus won't gather loose threads.
122If the root of a thread has expired or been read in a previous
123session, the information necessary to build a complete thread has been
124lost. Instead of having many small sub-threads from this original thread
125scattered all over the summary buffer, Gnus can gather them.
126
127If non-nil, Gnus will try to gather all loose sub-threads from an
128original thread into one large thread.
129
130If this variable is non-nil, it should be one of `none', `adopt',
131`dummy' or `empty'.
132
133If this variable is `none', Gnus will not make a false root, but just
134present the sub-threads after another.
135If this variable is `dummy', Gnus will create a dummy root that will
136have all the sub-threads as children.
137If this variable is `adopt', Gnus will make one of the \"children\"
138the parent and mark all the step-children as such.
139If this variable is `empty', the \"children\" are printed with empty
01ccbb85 140subject fields. (Or rather, they will be printed with a string
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141given by the `gnus-summary-same-subject' variable.)"
142 :group 'gnus-thread
143 :type '(choice (const :tag "off" nil)
144 (const none)
145 (const dummy)
146 (const adopt)
147 (const empty)))
148
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149(defcustom gnus-summary-make-false-root-always nil
150 "Always make a false dummy root."
bf247b6e 151 :version "22.1"
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152 :group 'gnus-thread
153 :type 'boolean)
154
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155(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
156 "*A regexp to match subjects to be excluded from loose thread gathering.
157As loose thread gathering is done on subjects only, that means that
158there can be many false gatherings performed. By rooting out certain
159common subjects, gathering might become saner."
160 :group 'gnus-thread
161 :type 'regexp)
162
163(defcustom gnus-summary-gather-subject-limit nil
164 "*Maximum length of subject comparisons when gathering loose threads.
165Use nil to compare full subjects. Setting this variable to a low
166number will help gather threads that have been corrupted by
167newsreaders chopping off subject lines, but it might also mean that
168unrelated articles that have subject that happen to begin with the
169same few characters will be incorrectly gathered.
170
171If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
172comparing subjects."
173 :group 'gnus-thread
174 :type '(choice (const :tag "off" nil)
175 (const fuzzy)
176 (sexp :menu-tag "on" t)))
177
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178(defcustom gnus-simplify-subject-functions nil
179 "List of functions taking a string argument that simplify subjects.
180The functions are applied recursively.
181
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182Useful functions to put in this list include:
183`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
184`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
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185 :group 'gnus-thread
186 :type '(repeat function))
187
eec82323 188(defcustom gnus-simplify-ignored-prefixes nil
23f87bed 189 "*Remove matches for this regexp from subject lines when simplifying fuzzily."
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190 :group 'gnus-thread
191 :type '(choice (const :tag "off" nil)
192 regexp))
193
194(defcustom gnus-build-sparse-threads nil
195 "*If non-nil, fill in the gaps in threads.
196If `some', only fill in the gaps that are needed to tie loose threads
197together. If `more', fill in all leaf nodes that Gnus can find. If
198non-nil and non-`some', fill in all gaps that Gnus manages to guess."
199 :group 'gnus-thread
200 :type '(choice (const :tag "off" nil)
201 (const some)
202 (const more)
203 (sexp :menu-tag "all" t)))
204
205(defcustom gnus-summary-thread-gathering-function
206 'gnus-gather-threads-by-subject
6748645f 207 "*Function used for gathering loose threads.
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208There are two pre-defined functions: `gnus-gather-threads-by-subject',
209which only takes Subjects into consideration; and
210`gnus-gather-threads-by-references', which compared the References
211headers of the articles to find matches."
212 :group 'gnus-thread
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213 :type '(radio (function-item gnus-gather-threads-by-subject)
214 (function-item gnus-gather-threads-by-references)
215 (function :tag "other")))
eec82323 216
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217(defcustom gnus-summary-same-subject ""
218 "*String indicating that the current article has the same subject as the previous.
219This variable will only be used if the value of
220`gnus-summary-make-false-root' is `empty'."
221 :group 'gnus-summary-format
222 :type 'string)
223
1d297c49 224(defcustom gnus-summary-goto-unread nil
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225 "*If t, many commands will go to the next unread article.
226This applies to marking commands as well as other commands that
227\"naturally\" select the next article, like, for instance, `SPC' at
228the end of an article.
229
230If nil, the marking commands do NOT go to the next unread article
2642ac8f 231\(they go to the next article instead). If `never', commands that
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232usually go to the next unread article, will go to the next article,
233whether it is read or not."
1d297c49 234 :version "24.1"
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235 :group 'gnus-summary-marks
236 :link '(custom-manual "(gnus)Setting Marks")
237 :type '(choice (const :tag "off" nil)
238 (const never)
239 (sexp :menu-tag "on" t)))
240
241(defcustom gnus-summary-default-score 0
242 "*Default article score level.
243All scores generated by the score files will be added to this score.
244If this variable is nil, scoring will be disabled."
245 :group 'gnus-score-default
246 :type '(choice (const :tag "disable")
247 integer))
248
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249(defcustom gnus-summary-default-high-score 0
250 "*Default threshold for a high scored article.
251An article will be highlighted as high scored if its score is greater
252than this score."
bf247b6e 253 :version "22.1"
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254 :group 'gnus-score-default
255 :type 'integer)
256
257(defcustom gnus-summary-default-low-score 0
258 "*Default threshold for a low scored article.
259An article will be highlighted as low scored if its score is smaller
260than this score."
bf247b6e 261 :version "22.1"
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262 :group 'gnus-score-default
263 :type 'integer)
264
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265(defcustom gnus-summary-zcore-fuzz 0
266 "*Fuzziness factor for the zcore in the summary buffer.
267Articles with scores closer than this to `gnus-summary-default-score'
268will not be marked."
269 :group 'gnus-summary-format
270 :type 'integer)
271
272(defcustom gnus-simplify-subject-fuzzy-regexp nil
273 "*Strings to be removed when doing fuzzy matches.
274This can either be a regular expression or list of regular expressions
275that will be removed from subject strings if fuzzy subject
276simplification is selected."
277 :group 'gnus-thread
278 :type '(repeat regexp))
279
280(defcustom gnus-show-threads t
281 "*If non-nil, display threads in summary mode."
282 :group 'gnus-thread
283 :type 'boolean)
284
285(defcustom gnus-thread-hide-subtree nil
286 "*If non-nil, hide all threads initially.
23f87bed 287This can be a predicate specifier which says which threads to hide.
eec82323 288If threads are hidden, you have to run the command
4a2358e9 289`gnus-summary-show-thread' by hand or select an article."
eec82323 290 :group 'gnus-thread
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291 :type '(radio (sexp :format "Non-nil\n"
292 :match (lambda (widget value)
293 (not (or (consp value) (functionp value))))
294 :value t)
295 (const nil)
ad136a7c 296 (sexp :tag "Predicate specifier")))
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297
298(defcustom gnus-thread-hide-killed t
299 "*If non-nil, hide killed threads automatically."
300 :group 'gnus-thread
301 :type 'boolean)
302
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303(defcustom gnus-thread-ignore-subject t
304 "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
305If nil, articles that have different subjects from their parents will
306start separate threads."
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307 :group 'gnus-thread
308 :type 'boolean)
309
310(defcustom gnus-thread-operation-ignore-subject t
311 "*If non-nil, subjects will be ignored when doing thread commands.
312This affects commands like `gnus-summary-kill-thread' and
313`gnus-summary-lower-thread'.
314
315If this variable is nil, articles in the same thread with different
316subjects will not be included in the operation in question. If this
317variable is `fuzzy', only articles that have subjects that are fuzzily
318equal will be included."
319 :group 'gnus-thread
320 :type '(choice (const :tag "off" nil)
321 (const fuzzy)
322 (sexp :tag "on" t)))
323
324(defcustom gnus-thread-indent-level 4
325 "*Number that says how much each sub-thread should be indented."
326 :group 'gnus-thread
327 :type 'integer)
328
329(defcustom gnus-auto-extend-newsgroup t
330 "*If non-nil, extend newsgroup forward and backward when requested."
331 :group 'gnus-summary-choose
332 :type 'boolean)
333
334(defcustom gnus-auto-select-first t
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335 "If non-nil, select an article on group entry.
336An article is selected automatically when entering a group
337e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
338`gnus-summary-catchup-and-goto-next-group'.
339
340Which article is selected is controlled by the variable
341`gnus-auto-select-subject'.
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342
343If you want to prevent automatic selection of articles in some
344newsgroups, set the variable to nil in `gnus-select-group-hook'."
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345 ;; Commands include...
346 ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
347 ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
348 ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
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349 :group 'gnus-group-select
350 :type '(choice (const :tag "none" nil)
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351 (sexp :menu-tag "first" t)))
352
a1347097 353(defcustom gnus-auto-select-subject 'unseen-or-unread
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354 "*Says what subject to place under point when entering a group.
355
356This variable can either be the symbols `first' (place point on the
357first subject), `unread' (place point on the subject line of the first
358unread article), `best' (place point on the subject line of the
359higest-scored article), `unseen' (place point on the subject line of
99b5aab7 360the first unseen article), `unseen-or-unread' (place point on the subject
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361line of the first unseen article or, if all article have been seen, on the
362subject line of the first unread article), or a function to be called to
363place point on some subject line."
a1347097 364 :version "24.1"
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365 :group 'gnus-group-select
366 :type '(choice (const best)
367 (const unread)
368 (const first)
369 (const unseen)
370 (const unseen-or-unread)))
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371
372(defcustom gnus-auto-select-next t
373 "*If non-nil, offer to go to the next group from the end of the previous.
374If the value is t and the next newsgroup is empty, Gnus will exit
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375summary mode and go back to group mode. If the value is neither nil
376nor t, Gnus will select the following unread newsgroup. In
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377particular, if the value is the symbol `quietly', the next unread
378newsgroup will be selected without any confirmation, and if it is
379`almost-quietly', the next group will be selected without any
380confirmation if you are located on the last article in the group.
23f87bed 381Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
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382will go to the next group without confirmation."
383 :group 'gnus-summary-maneuvering
384 :type '(choice (const :tag "off" nil)
385 (const quietly)
386 (const almost-quietly)
387 (const slightly-quietly)
388 (sexp :menu-tag "on" t)))
389
390(defcustom gnus-auto-select-same nil
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391 "*If non-nil, select the next article with the same subject.
392If there are no more articles with the same subject, go to
393the first unread article."
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394 :group 'gnus-summary-maneuvering
395 :type 'boolean)
396
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397(defcustom gnus-auto-select-on-ephemeral-exit 'next-noselect
398 "What article should be selected after exiting an ephemeral group.
399Valid values include:
400
401`next'
402 Select the next article.
403`next-unread'
404 Select the next unread article.
405`next-noselect'
406 Move the cursor to the next article. This is the default.
407`next-unread-noselect'
408 Move the cursor to the next unread article.
409
410If it has any other value or there is no next (unread) article, the
411article selected before entering to the ephemeral group will appear."
330f707b 412 :version "23.1" ;; No Gnus
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413 :group 'gnus-summary-maneuvering
414 :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
415 (const next) (const next-unread)
416 (const next-noselect) (const next-unread-noselect)
417 (sexp :tag "other" :value nil)))
418
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419(defcustom gnus-auto-goto-ignores 'unfetched
420 "*Says how to handle unfetched articles when maneuvering.
421
422This variable can either be the symbols nil (maneuver to any
423article), `undownloaded' (maneuvering while unplugged ignores articles
424that have not been fetched), `always-undownloaded' (maneuvering always
425ignores articles that have not been fetched), `unfetched' (maneuvering
426ignores articles whose headers have not been fetched).
427
428NOTE: The list of unfetched articles will always be nil when plugged
429and, when unplugged, a subset of the undownloaded article list."
bf247b6e 430 :version "22.1"
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431 :group 'gnus-summary-maneuvering
432 :type '(choice (const :tag "None" nil)
433 (const :tag "Undownloaded when unplugged" undownloaded)
434 (const :tag "Undownloaded" always-undownloaded)
435 (const :tag "Unfetched" unfetched)))
436
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437(defcustom gnus-summary-check-current nil
438 "*If non-nil, consider the current article when moving.
439The \"unread\" movement commands will stay on the same line if the
440current article is unread."
441 :group 'gnus-summary-maneuvering
442 :type 'boolean)
443
01c52d31 444(defcustom gnus-auto-center-summary 2
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445 "*If non-nil, always center the current summary buffer.
446In particular, if `vertical' do only vertical recentering. If non-nil
447and non-`vertical', do both horizontal and vertical recentering."
448 :group 'gnus-summary-maneuvering
449 :type '(choice (const :tag "none" nil)
450 (const vertical)
16409b0b 451 (integer :tag "height")
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452 (sexp :menu-tag "both" t)))
453
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454(defvar gnus-auto-center-group t
455 "*If non-nil, always center the group buffer.")
456
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457(defcustom gnus-show-all-headers nil
458 "*If non-nil, don't hide any headers."
459 :group 'gnus-article-hiding
460 :group 'gnus-article-headers
461 :type 'boolean)
462
463(defcustom gnus-summary-ignore-duplicates nil
464 "*If non-nil, ignore articles with identical Message-ID headers."
465 :group 'gnus-summary
466 :type 'boolean)
6748645f 467
1d297c49 468(defcustom gnus-single-article-buffer nil
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469 "*If non-nil, display all articles in the same buffer.
470If nil, each group will get its own article buffer."
1d297c49 471 :version "24.1"
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472 :group 'gnus-article-various
473 :type 'boolean)
474
475(defcustom gnus-break-pages t
476 "*If non-nil, do page breaking on articles.
477The page delimiter is specified by the `gnus-page-delimiter'
478variable."
479 :group 'gnus-article-various
480 :type 'boolean)
481
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482(defcustom gnus-move-split-methods nil
483 "*Variable used to suggest where articles are to be moved to.
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484It uses the same syntax as the `gnus-split-methods' variable.
485However, whereas `gnus-split-methods' specifies file names as targets,
486this variable specifies group names."
eec82323 487 :group 'gnus-summary-mail
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488 :type '(repeat (choice (list :value (fun) function)
489 (cons :value ("" "") regexp (repeat string))
490 (sexp :value nil))))
eec82323 491
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492(defcustom gnus-move-group-prefix-function 'gnus-group-real-prefix
493 "Function used to compute default prefix for article move/copy/etc prompts.
494The function should take one argument, a group name, and return a
495string with the suggested prefix."
496 :group 'gnus-summary-mail
497 :type 'function)
498
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499;; FIXME: Although the custom type is `character' for the following variables,
500;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
501
23f87bed 502(defcustom gnus-unread-mark ? ;Whitespace
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503 "*Mark used for unread articles."
504 :group 'gnus-summary-marks
505 :type 'character)
506
507(defcustom gnus-ticked-mark ?!
508 "*Mark used for ticked articles."
509 :group 'gnus-summary-marks
510 :type 'character)
511
512(defcustom gnus-dormant-mark ??
513 "*Mark used for dormant articles."
514 :group 'gnus-summary-marks
515 :type 'character)
516
517(defcustom gnus-del-mark ?r
518 "*Mark used for del'd articles."
519 :group 'gnus-summary-marks
520 :type 'character)
521
522(defcustom gnus-read-mark ?R
523 "*Mark used for read articles."
524 :group 'gnus-summary-marks
525 :type 'character)
526
527(defcustom gnus-expirable-mark ?E
528 "*Mark used for expirable articles."
529 :group 'gnus-summary-marks
530 :type 'character)
531
532(defcustom gnus-killed-mark ?K
533 "*Mark used for killed articles."
534 :group 'gnus-summary-marks
535 :type 'character)
536
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537(defcustom gnus-spam-mark ?$
538 "*Mark used for spam articles."
bf247b6e 539 :version "22.1"
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540 :group 'gnus-summary-marks
541 :type 'character)
542
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543(defcustom gnus-kill-file-mark ?X
544 "*Mark used for articles killed by kill files."
545 :group 'gnus-summary-marks
546 :type 'character)
547
548(defcustom gnus-low-score-mark ?Y
549 "*Mark used for articles with a low score."
550 :group 'gnus-summary-marks
551 :type 'character)
552
553(defcustom gnus-catchup-mark ?C
554 "*Mark used for articles that are caught up."
555 :group 'gnus-summary-marks
556 :type 'character)
557
558(defcustom gnus-replied-mark ?A
559 "*Mark used for articles that have been replied to."
560 :group 'gnus-summary-marks
561 :type 'character)
562
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563(defcustom gnus-forwarded-mark ?F
564 "*Mark used for articles that have been forwarded."
bf247b6e 565 :version "22.1"
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566 :group 'gnus-summary-marks
567 :type 'character)
568
569(defcustom gnus-recent-mark ?N
570 "*Mark used for articles that are recent."
bf247b6e 571 :version "22.1"
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572 :group 'gnus-summary-marks
573 :type 'character)
574
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575(defcustom gnus-cached-mark ?*
576 "*Mark used for articles that are in the cache."
577 :group 'gnus-summary-marks
578 :type 'character)
579
580(defcustom gnus-saved-mark ?S
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581 "*Mark used for articles that have been saved."
582 :group 'gnus-summary-marks
583 :type 'character)
584
585(defcustom gnus-unseen-mark ?.
586 "*Mark used for articles that haven't been seen."
bf247b6e 587 :version "22.1"
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588 :group 'gnus-summary-marks
589 :type 'character)
590
591(defcustom gnus-no-mark ? ;Whitespace
592 "*Mark used for articles that have no other secondary mark."
bf247b6e 593 :version "22.1"
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594 :group 'gnus-summary-marks
595 :type 'character)
596
597(defcustom gnus-ancient-mark ?O
598 "*Mark used for ancient articles."
599 :group 'gnus-summary-marks
600 :type 'character)
601
602(defcustom gnus-sparse-mark ?Q
603 "*Mark used for sparsely reffed articles."
604 :group 'gnus-summary-marks
605 :type 'character)
606
607(defcustom gnus-canceled-mark ?G
608 "*Mark used for canceled articles."
609 :group 'gnus-summary-marks
610 :type 'character)
611
612(defcustom gnus-duplicate-mark ?M
613 "*Mark used for duplicate articles."
614 :group 'gnus-summary-marks
615 :type 'character)
616
23f87bed 617(defcustom gnus-undownloaded-mark ?-
6748645f 618 "*Mark used for articles that weren't downloaded."
bf247b6e 619 :version "22.1"
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620 :group 'gnus-summary-marks
621 :type 'character)
622
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623(defcustom gnus-downloaded-mark ?+
624 "*Mark used for articles that were downloaded."
625 :group 'gnus-summary-marks
626 :type 'character)
627
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628(defcustom gnus-downloadable-mark ?%
629 "*Mark used for articles that are to be downloaded."
630 :group 'gnus-summary-marks
631 :type 'character)
632
633(defcustom gnus-unsendable-mark ?=
634 "*Mark used for articles that won't be sent."
635 :group 'gnus-summary-marks
636 :type 'character)
637
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638(defcustom gnus-score-over-mark ?+
639 "*Score mark used for articles with high scores."
640 :group 'gnus-summary-marks
641 :type 'character)
642
643(defcustom gnus-score-below-mark ?-
644 "*Score mark used for articles with low scores."
645 :group 'gnus-summary-marks
646 :type 'character)
647
23f87bed 648(defcustom gnus-empty-thread-mark ? ;Whitespace
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649 "*There is no thread under the article."
650 :group 'gnus-summary-marks
651 :type 'character)
652
653(defcustom gnus-not-empty-thread-mark ?=
654 "*There is a thread under the article."
655 :group 'gnus-summary-marks
656 :type 'character)
657
658(defcustom gnus-view-pseudo-asynchronously nil
659 "*If non-nil, Gnus will view pseudo-articles asynchronously."
660 :group 'gnus-extract-view
661 :type 'boolean)
662
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663(defcustom gnus-auto-expirable-marks
664 (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
665 gnus-low-score-mark gnus-ancient-mark gnus-read-mark
c4d82de8 666 gnus-duplicate-mark)
16409b0b 667 "*The list of marks converted into expiration if a group is auto-expirable."
b0e30310 668 :version "24.1"
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669 :group 'gnus-summary
670 :type '(repeat character))
671
672(defcustom gnus-inhibit-user-auto-expire t
673 "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
58e39d05 674 :version "21.1"
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675 :group 'gnus-summary
676 :type 'boolean)
677
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678(defcustom gnus-mark-copied-or-moved-articles-as-expirable nil
679 "If non-nil, mark articles copied or moved to auto-expire group as expirable.
680If nil, the expirable marks will be unchanged except that the marks
681will be removed when copying or moving articles to a group that has
682not turned auto-expire on. If non-nil, articles that have been read
683will be marked as expirable when being copied or moved to a group in
684which auto-expire is turned on."
685 :version "23.2"
686 :type 'boolean
687 :group 'gnus-summary-marks)
688
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689(defcustom gnus-view-pseudos nil
690 "*If `automatic', pseudo-articles will be viewed automatically.
691If `not-confirm', pseudos will be viewed automatically, and the user
692will not be asked to confirm the command."
693 :group 'gnus-extract-view
694 :type '(choice (const :tag "off" nil)
695 (const automatic)
696 (const not-confirm)))
697
698(defcustom gnus-view-pseudos-separately t
699 "*If non-nil, one pseudo-article will be created for each file to be viewed.
700If nil, all files that use the same viewing command will be given as a
701list of parameters to that command."
702 :group 'gnus-extract-view
703 :type 'boolean)
704
705(defcustom gnus-insert-pseudo-articles t
706 "*If non-nil, insert pseudo-articles when decoding articles."
707 :group 'gnus-extract-view
708 :type 'boolean)
709
710(defcustom gnus-summary-dummy-line-format
23f87bed 711 " %(: :%) %S\n"
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712 "*The format specification for the dummy roots in the summary buffer.
713It works along the same lines as a normal formatting string,
714with some simple extensions.
715
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716%S The subject
717
718General format specifiers can also be used.
719See `(gnus)Formatting Variables'."
720 :link '(custom-manual "(gnus)Formatting Variables")
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721 :group 'gnus-threading
722 :type 'string)
723
16409b0b 724(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
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725 "*The format specification for the summary mode line.
726It works along the same lines as a normal formatting string,
727with some simple extensions:
728
729%G Group name
730%p Unprefixed group name
731%A Current article number
6748645f 732%z Current article score
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733%V Gnus version
734%U Number of unread articles in the group
735%e Number of unselected articles in the group
736%Z A string with unread/unselected article counts
737%g Shortish group name
738%S Subject of the current article
739%u User-defined spec
740%s Current score file name
741%d Number of dormant articles
742%r Number of articles that have been marked as read in this session
743%E Number of articles expunged by the score files"
744 :group 'gnus-summary-format
745 :type 'string)
746
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747(defcustom gnus-list-identifiers nil
748 "Regexp that matches list identifiers to be removed from subject.
749This can also be a list of regexps."
58e39d05 750 :version "21.1"
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751 :group 'gnus-summary-format
752 :group 'gnus-article-hiding
753 :type '(choice (const :tag "none" nil)
754 (regexp :value ".*")
755 (repeat :value (".*") regexp)))
756
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757(defcustom gnus-summary-mark-below 0
758 "*Mark all articles with a score below this variable as read.
759This variable is local to each summary buffer and usually set by the
760score file."
761 :group 'gnus-score-default
762 :type 'integer)
763
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764(defun gnus-widget-reversible-match (widget value)
765 "Ignoring WIDGET, convert VALUE to internal form.
766VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
767 ;; (debug value)
768 (or (symbolp value)
769 (and (listp value)
770 (eq (length value) 2)
771 (eq (nth 0 value) 'not)
772 (symbolp (nth 1 value)))))
773
774(defun gnus-widget-reversible-to-internal (widget value)
775 "Ignoring WIDGET, convert VALUE to internal form.
776VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
777FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
778 ;; (debug value)
779 (if (atom value)
780 (list value nil)
781 (list (nth 1 value) t)))
782
783(defun gnus-widget-reversible-to-external (widget value)
784 "Ignoring WIDGET, convert VALUE to external form.
785VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
786\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
787 ;; (debug value)
788 (if (nth 1 value)
789 (list 'not (nth 0 value))
790 (nth 0 value)))
791
792(define-widget 'gnus-widget-reversible 'group
793 "A `group' that convert values."
794 :match 'gnus-widget-reversible-match
795 :value-to-internal 'gnus-widget-reversible-to-internal
796 :value-to-external 'gnus-widget-reversible-to-external)
797
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798(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
799 "*List of functions used for sorting articles in the summary buffer.
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800
801Each function takes two articles and returns non-nil if the first
802article should be sorted before the other. If you use more than one
803function, the primary sort function should be the last. You should
804probably always include `gnus-article-sort-by-number' in the list of
805sorting functions -- preferably first. Also note that sorting by date
806is often much slower than sorting by number, and the sorting order is
807very similar. (Sorting by date means sorting by the time the message
808was sent, sorting by number means sorting by arrival time.)
809
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810Each item can also be a list `(not F)' where F is a function;
811this reverses the sort order.
812
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813Ready-made functions include `gnus-article-sort-by-number',
814`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
815`gnus-article-sort-by-date', `gnus-article-sort-by-random'
816and `gnus-article-sort-by-score'.
817
818When threading is turned on, the variable `gnus-thread-sort-functions'
819controls how articles are sorted."
eec82323 820 :group 'gnus-summary-sort
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821 :type '(repeat (gnus-widget-reversible
822 (choice (function-item gnus-article-sort-by-number)
823 (function-item gnus-article-sort-by-author)
824 (function-item gnus-article-sort-by-subject)
825 (function-item gnus-article-sort-by-date)
826 (function-item gnus-article-sort-by-score)
827 (function-item gnus-article-sort-by-random)
828 (function :tag "other"))
829 (boolean :tag "Reverse order"))))
830
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831
832(defcustom gnus-thread-sort-functions '(gnus-thread-sort-by-number)
833 "*List of functions used for sorting threads in the summary buffer.
834By default, threads are sorted by article number.
835
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836Each function takes two threads and returns non-nil if the first
837thread should be sorted before the other. If you use more than one
838function, the primary sort function should be the last. You should
839probably always include `gnus-thread-sort-by-number' in the list of
840sorting functions -- preferably first. Also note that sorting by date
841is often much slower than sorting by number, and the sorting order is
842very similar. (Sorting by date means sorting by the time the message
843was sent, sorting by number means sorting by arrival time.)
eec82323 844
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845Each list item can also be a list `(not F)' where F is a
846function; this specifies reversed sort order.
847
eec82323 848Ready-made functions include `gnus-thread-sort-by-number',
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849`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
850`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
851`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
852`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
853and `gnus-thread-sort-by-total-score' (see
854`gnus-thread-score-function').
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855
856When threading is turned off, the variable
857`gnus-article-sort-functions' controls how articles are sorted."
eec82323 858 :group 'gnus-summary-sort
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859 :type '(repeat
860 (gnus-widget-reversible
861 (choice (function-item gnus-thread-sort-by-number)
862 (function-item gnus-thread-sort-by-author)
863 (function-item gnus-thread-sort-by-recipient)
864 (function-item gnus-thread-sort-by-subject)
865 (function-item gnus-thread-sort-by-date)
866 (function-item gnus-thread-sort-by-score)
867 (function-item gnus-thread-sort-by-most-recent-number)
868 (function-item gnus-thread-sort-by-most-recent-date)
869 (function-item gnus-thread-sort-by-random)
870 (function-item gnus-thread-sort-by-total-score)
871 (function :tag "other"))
872 (boolean :tag "Reverse order"))))
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873
874(defcustom gnus-thread-score-function '+
875 "*Function used for calculating the total score of a thread.
876
877The function is called with the scores of the article and each
878subthread and should then return the score of the thread.
879
880Some functions you can use are `+', `max', or `min'."
881 :group 'gnus-summary-sort
882 :type 'function)
883
884(defcustom gnus-summary-expunge-below nil
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885 "All articles that have a score less than this variable will be expunged.
886This variable is local to the summary buffers."
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887 :group 'gnus-score-default
888 :type '(choice (const :tag "off" nil)
889 integer))
890
891(defcustom gnus-thread-expunge-below nil
892 "All threads that have a total score less than this variable will be expunged.
893See `gnus-thread-score-function' for en explanation of what a
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894\"thread score\" is.
895
896This variable is local to the summary buffers."
16409b0b 897 :group 'gnus-threading
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898 :group 'gnus-score-default
899 :type '(choice (const :tag "off" nil)
900 integer))
901
902(defcustom gnus-summary-mode-hook nil
903 "*A hook for Gnus summary mode.
904This hook is run before any variables are set in the summary buffer."
23f87bed 905 :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
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906 :group 'gnus-summary-various
907 :type 'hook)
908
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909;; Extracted from gnus-xmas-redefine in order to preserve user settings
910(when (featurep 'xemacs)
911 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
912 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
913 (add-hook 'gnus-summary-mode-hook
914 'gnus-xmas-switch-horizontal-scrollbar-off))
915
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916(defcustom gnus-summary-menu-hook nil
917 "*Hook run after the creation of the summary mode menu."
918 :group 'gnus-summary-visual
919 :type 'hook)
920
921(defcustom gnus-summary-exit-hook nil
922 "*A hook called on exit from the summary buffer.
923It will be called with point in the group buffer."
924 :group 'gnus-summary-exit
925 :type 'hook)
926
927(defcustom gnus-summary-prepare-hook nil
928 "*A hook called after the summary buffer has been generated.
929If you want to modify the summary buffer, you can use this hook."
930 :group 'gnus-summary-various
931 :type 'hook)
932
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933(defcustom gnus-summary-prepared-hook nil
934 "*A hook called as the last thing after the summary buffer has been generated."
935 :group 'gnus-summary-various
936 :type 'hook)
937
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938(defcustom gnus-summary-generate-hook nil
939 "*A hook run just before generating the summary buffer.
940This hook is commonly used to customize threading variables and the
941like."
942 :group 'gnus-summary-various
943 :type 'hook)
944
945(defcustom gnus-select-group-hook nil
946 "*A hook called when a newsgroup is selected.
947
948If you'd like to simplify subjects like the
949`gnus-summary-next-same-subject' command does, you can use the
950following hook:
951
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952 (add-hook gnus-select-group-hook
953 (lambda ()
954 (mapcar (lambda (header)
955 (mail-header-set-subject
956 header
957 (gnus-simplify-subject
958 (mail-header-subject header) 're-only)))
959 gnus-newsgroup-headers)))"
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960 :group 'gnus-group-select
961 :type 'hook)
962
963(defcustom gnus-select-article-hook nil
964 "*A hook called when an article is selected."
965 :group 'gnus-summary-choose
23f87bed 966 :options '(gnus-agent-fetch-selected-article)
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967 :type 'hook)
968
969(defcustom gnus-visual-mark-article-hook
970 (list 'gnus-highlight-selected-summary)
971 "*Hook run after selecting an article in the summary buffer.
972It is meant to be used for highlighting the article in some way. It
973is not run if `gnus-visual' is nil."
974 :group 'gnus-summary-visual
975 :type 'hook)
976
16409b0b 977(defcustom gnus-parse-headers-hook nil
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978 "*A hook called before parsing the headers."
979 :group 'gnus-various
980 :type 'hook)
981
982(defcustom gnus-exit-group-hook nil
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983 "*A hook called when exiting summary mode.
984This hook is not called from the non-updating exit commands like `Q'."
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985 :group 'gnus-various
986 :type 'hook)
987
a9ec34f4 988(defcustom gnus-summary-update-hook nil
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989 "*A hook called when a summary line is changed.
990The hook will not be called if `gnus-visual' is nil.
991
992The default function `gnus-summary-highlight-line' will
993highlight the line according to the `gnus-summary-highlight'
994variable."
995 :group 'gnus-summary-visual
996 :type 'hook)
997
998(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
999 "*A hook called when an article is selected for the first time.
1000The hook is intended to mark an article as read (or unread)
1001automatically when it is selected."
1002 :group 'gnus-summary-choose
1003 :type 'hook)
1004
1005(defcustom gnus-group-no-more-groups-hook nil
1006 "*A hook run when returning to group mode having no more (unread) groups."
1007 :group 'gnus-group-select
1008 :type 'hook)
1009
1010(defcustom gnus-ps-print-hook nil
1011 "*A hook run before ps-printing something from Gnus."
1012 :group 'gnus-summary
1013 :type 'hook)
1014
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1015(defcustom gnus-summary-article-move-hook nil
1016 "*A hook called after an article is moved, copied, respooled, or crossposted."
bf247b6e 1017 :version "22.1"
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1018 :group 'gnus-summary
1019 :type 'hook)
1020
1021(defcustom gnus-summary-article-delete-hook nil
1022 "*A hook called after an article is deleted."
bf247b6e 1023 :version "22.1"
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1024 :group 'gnus-summary
1025 :type 'hook)
1026
1027(defcustom gnus-summary-article-expire-hook nil
1028 "*A hook called after an article is expired."
bf247b6e 1029 :version "22.1"
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1030 :group 'gnus-summary
1031 :type 'hook)
1032
1033(defcustom gnus-summary-display-arrow
1034 (and (fboundp 'display-graphic-p)
1035 (display-graphic-p))
1036 "*If non-nil, display an arrow highlighting the current article."
bf247b6e 1037 :version "22.1"
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1038 :group 'gnus-summary
1039 :type 'boolean)
1040
0f49874b 1041(defcustom gnus-summary-selected-face 'gnus-summary-selected
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1042 "Face used for highlighting the current article in the summary buffer."
1043 :group 'gnus-summary-visual
1044 :type 'face)
1045
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1046(defvar gnus-tmp-downloaded nil)
1047
eec82323 1048(defcustom gnus-summary-highlight
23f87bed 1049 '(((eq mark gnus-canceled-mark)
0f49874b 1050 . gnus-summary-cancelled)
23f87bed 1051 ((and uncached (> score default-high))
0f49874b 1052 . gnus-summary-high-undownloaded)
23f87bed 1053 ((and uncached (< score default-low))
0f49874b 1054 . gnus-summary-low-undownloaded)
23f87bed 1055 (uncached
0f49874b 1056 . gnus-summary-normal-undownloaded)
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1057 ((and (> score default-high)
1058 (or (eq mark gnus-dormant-mark)
1059 (eq mark gnus-ticked-mark)))
0f49874b 1060 . gnus-summary-high-ticked)
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1061 ((and (< score default-low)
1062 (or (eq mark gnus-dormant-mark)
1063 (eq mark gnus-ticked-mark)))
0f49874b 1064 . gnus-summary-low-ticked)
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1065 ((or (eq mark gnus-dormant-mark)
1066 (eq mark gnus-ticked-mark))
0f49874b 1067 . gnus-summary-normal-ticked)
23f87bed 1068 ((and (> score default-high) (eq mark gnus-ancient-mark))
0f49874b 1069 . gnus-summary-high-ancient)
23f87bed 1070 ((and (< score default-low) (eq mark gnus-ancient-mark))
0f49874b 1071 . gnus-summary-low-ancient)
23f87bed 1072 ((eq mark gnus-ancient-mark)
0f49874b 1073 . gnus-summary-normal-ancient)
23f87bed 1074 ((and (> score default-high) (eq mark gnus-unread-mark))
0f49874b 1075 . gnus-summary-high-unread)
23f87bed 1076 ((and (< score default-low) (eq mark gnus-unread-mark))
0f49874b 1077 . gnus-summary-low-unread)
23f87bed 1078 ((eq mark gnus-unread-mark)
0f49874b 1079 . gnus-summary-normal-unread)
23f87bed 1080 ((> score default-high)
0f49874b 1081 . gnus-summary-high-read)
23f87bed 1082 ((< score default-low)
0f49874b 1083 . gnus-summary-low-read)
eec82323 1084 (t
0f49874b 1085 . gnus-summary-normal-read))
6748645f 1086 "*Controls the highlighting of summary buffer lines.
eec82323 1087
107cf8ec 1088A list of (FORM . FACE) pairs. When deciding how a particular
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1089summary line should be displayed, each form is evaluated. The content
1090of the face field after the first true form is used. You can change
1091how those summary lines are displayed, by editing the face field.
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1092
1093You can use the following variables in the FORM field.
1094
107cf8ec 1095score: The article's score.
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1096default: The default article score.
1097default-high: The default score for high scored articles.
1098default-low: The default score for low scored articles.
1099below: The score below which articles are automatically marked as read.
1100mark: The article's mark.
1101uncached: Non-nil if the article is uncached."
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1102 :group 'gnus-summary-visual
1103 :type '(repeat (cons (sexp :tag "Form" nil)
1104 face)))
c12ecb0a 1105(put 'gnus-summary-highlight 'risky-local-variable t)
eec82323 1106
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1107(defcustom gnus-alter-header-function nil
1108 "Function called to allow alteration of article header structures.
1109The function is called with one parameter, the article header vector,
0ab0f2d3
SZ
1110which it may alter in any way."
1111 :type '(choice (const :tag "None" nil)
1112 function)
1113 :group 'gnus-summary)
eec82323 1114
16409b0b 1115(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
343d6628
MB
1116 "Function used to decode a string with encoded words.")
1117
1118(defvar gnus-decode-encoded-address-function
1119 'mail-decode-encoded-address-string
1120 "Function used to decode addresses with encoded words.")
16409b0b 1121
23f87bed 1122(defcustom gnus-extra-headers '(To Newsgroups)
16409b0b 1123 "*Extra headers to parse."
58e39d05 1124 :version "21.1"
16409b0b
GM
1125 :group 'gnus-summary
1126 :type '(repeat symbol))
1127
1128(defcustom gnus-ignored-from-addresses
343d6628 1129 (and user-mail-address
7cd9f860
CY
1130 (not (string= user-mail-address ""))
1131 (regexp-quote user-mail-address))
01c52d31
MB
1132 "*From headers that may be suppressed in favor of To headers.
1133This can be a regexp or a list of regexps."
58e39d05 1134 :version "21.1"
16409b0b 1135 :group 'gnus-summary
01c52d31
MB
1136 :type '(choice regexp
1137 (repeat :tag "Regexp List" regexp)))
1138
1139(defsubst gnus-ignored-from-addresses ()
1140 (gmm-regexp-concat gnus-ignored-from-addresses))
1141
1142(defcustom gnus-summary-to-prefix "-> "
1143 "*String prefixed to the To field in the summary line when
1144using `gnus-ignored-from-addresses'."
1145 :version "22.1"
1146 :group 'gnus-summary
1147 :type 'string)
1148
1149(defcustom gnus-summary-newsgroup-prefix "=> "
1150 "*String prefixed to the Newsgroup field in the summary
1151line when using `gnus-ignored-from-addresses'."
1152 :version "22.1"
1153 :group 'gnus-summary
1154 :type 'string)
16409b0b 1155
16409b0b
GM
1156(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
1157 "List of charsets that should be ignored.
1158When these charsets are used in the \"charset\" parameter, the
1159default charset will be used instead."
58e39d05 1160 :version "21.1"
16409b0b
GM
1161 :type '(repeat symbol)
1162 :group 'gnus-charset)
1163
4b70e299
MB
1164(defcustom gnus-newsgroup-maximum-articles nil
1165 "The maximum number of articles a newsgroup.
1166If this is a number, old articles in a newsgroup exceeding this number
1167are silently ignored. If it is nil, no article is ignored. Note that
1168setting this variable to a number might prevent you from reading very
1169old articles."
1170 :group 'gnus-group-select
1171 :version "22.2"
1172 :type '(choice (const :tag "No limit" nil)
1173 integer))
1174
23f87bed
MB
1175(gnus-define-group-parameter
1176 ignored-charsets
1177 :type list
1178 :function-document
1179 "Return the ignored charsets of GROUP."
1180 :variable gnus-group-ignored-charsets-alist
1181 :variable-default
1182 '(("alt\\.chinese\\.text" iso-8859-1))
1183 :variable-document
1184 "Alist of regexps (to match group names) and charsets that should be ignored.
16409b0b
GM
1185When these charsets are used in the \"charset\" parameter, the
1186default charset will be used instead."
23f87bed
MB
1187 :variable-group gnus-charset
1188 :variable-type '(repeat (cons (regexp :tag "Group")
1189 (repeat symbol)))
1190 :parameter-type '(choice :tag "Ignored charsets"
1191 :value nil
1192 (repeat (symbol)))
1193 :parameter-document "\
1194List of charsets that should be ignored.
1195
1196When these charsets are used in the \"charset\" parameter, the
1197default charset will be used instead.")
16409b0b
GM
1198
1199(defcustom gnus-group-highlight-words-alist nil
1200 "Alist of group regexps and highlight regexps.
1201This variable uses the same syntax as `gnus-emphasis-alist'."
58e39d05 1202 :version "21.1"
16409b0b
GM
1203 :type '(repeat (cons (regexp :tag "Group")
1204 (repeat (list (regexp :tag "Highlight regexp")
1205 (number :tag "Group for entire word" 0)
1206 (number :tag "Group for displayed part" 0)
1207 (symbol :tag "Face"
1208 gnus-emphasis-highlight-words)))))
1209 :group 'gnus-summary-visual)
1210
1211(defcustom gnus-summary-show-article-charset-alist
1212 nil
1213 "Alist of number and charset.
1214The article will be shown with the charset corresponding to the
1215numbered argument.
1216For example: ((1 . cn-gb-2312) (2 . big5))."
58e39d05 1217 :version "21.1"
16409b0b
GM
1218 :type '(repeat (cons (number :tag "Argument" 1)
1219 (symbol :tag "Charset")))
1220 :group 'gnus-charset)
1221
1222(defcustom gnus-preserve-marks t
1223 "Whether marks are preserved when moving, copying and respooling messages."
58e39d05 1224 :version "21.1"
16409b0b
GM
1225 :type 'boolean
1226 :group 'gnus-summary-marks)
1227
3a23a519
MB
1228(defcustom gnus-propagate-marks t
1229 "If non-nil, do not propagate marks to the backends."
f8a29505 1230 :version "23.1" ;; No Gnus
3a23a519
MB
1231 :type 'boolean
1232 :group 'gnus-summary-marks)
1233
16409b0b
GM
1234(defcustom gnus-alter-articles-to-read-function nil
1235 "Function to be called to alter the list of articles to be selected."
8fc7a9a1 1236 :type '(choice (const nil) function)
16409b0b
GM
1237 :group 'gnus-summary)
1238
1239(defcustom gnus-orphan-score nil
1240 "*All orphans get this score added. Set in the score file."
1241 :group 'gnus-score-default
1242 :type '(choice (const nil)
1243 integer))
1244
8b93df01 1245(defcustom gnus-summary-save-parts-default-mime "image/.*"
23f87bed
MB
1246 "*A regexp to match MIME parts when saving multiple parts of a
1247message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
1248This regexp will be used by default when prompting the user for which
1249type of files to save."
8b93df01
DL
1250 :group 'gnus-summary
1251 :type 'regexp)
1252
23f87bed
MB
1253(defcustom gnus-read-all-available-headers nil
1254 "Whether Gnus should parse all headers made available to it.
1255This is mostly relevant for slow back ends where the user may
1256wish to widen the summary buffer to include all headers
c4d82de8 1257that were fetched."
bf247b6e 1258 :version "22.1"
23f87bed
MB
1259 :group 'gnus-summary
1260 :type '(choice boolean regexp))
1261
89167438
MB
1262(defcustom gnus-summary-pipe-output-default-command nil
1263 "Command (and optional arguments) used to pipe article to subprocess.
1264This will be used as the default command if it is non-nil. The value
1265will be updated if you modify it when executing the command
1266`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
1267 :version "23.1" ;; No Gnus
1268 :group 'gnus-summary
1269 :type '(radio (const :tag "None" nil) (string :tag "Command")))
1270
23f87bed 1271(defcustom gnus-summary-muttprint-program "muttprint"
89167438
MB
1272 "Command (and optional arguments) used to run Muttprint.
1273The value will be updated if you modify it when executing the command
1274`gnus-summary-muttprint'."
bf247b6e 1275 :version "22.1"
23f87bed
MB
1276 :group 'gnus-summary
1277 :type 'string)
1278
01c52d31 1279(defcustom gnus-article-loose-mime t
23f87bed
MB
1280 "If non-nil, don't require MIME-Version header.
1281Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
a08b59c9 1282supply the MIME-Version header or deliberately strip it from the mail.
01c52d31
MB
1283If non-nil (the default), Gnus will treat some articles as MIME
1284even if the MIME-Version header is missing."
bf247b6e 1285 :version "22.1"
23f87bed
MB
1286 :type 'boolean
1287 :group 'gnus-article-mime)
1288
1289(defcustom gnus-article-emulate-mime t
1290 "If non-nil, use MIME emulation for uuencode and the like.
1291This means that Gnus will search message bodies for text that look
1292like uuencoded bits, yEncoded bits, and so on, and present that using
1293the normal Gnus MIME machinery."
bf247b6e 1294 :version "22.1"
23f87bed
MB
1295 :type 'boolean
1296 :group 'gnus-article-mime)
8b93df01 1297
eec82323
LMI
1298;;; Internal variables
1299
23f87bed 1300(defvar gnus-summary-display-cache nil)
16409b0b
GM
1301(defvar gnus-article-mime-handles nil)
1302(defvar gnus-article-decoded-p nil)
23f87bed
MB
1303(defvar gnus-article-charset nil)
1304(defvar gnus-article-ignored-charsets nil)
eec82323
LMI
1305(defvar gnus-scores-exclude-files nil)
1306(defvar gnus-page-broken nil)
1307
1308(defvar gnus-original-article nil)
1309(defvar gnus-article-internal-prepare-hook nil)
1310(defvar gnus-newsgroup-process-stack nil)
1311
1312(defvar gnus-thread-indent-array nil)
1313(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
16409b0b
GM
1314(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
1315 "Function called to sort the articles within a thread after it has been gathered together.")
eec82323 1316
8b93df01 1317(defvar gnus-summary-save-parts-type-history nil)
23f87bed 1318(defvar gnus-summary-save-parts-last-directory mm-default-directory)
8b93df01 1319
eec82323
LMI
1320;; Avoid highlighting in kill files.
1321(defvar gnus-summary-inhibit-highlight nil)
1322(defvar gnus-newsgroup-selected-overlay nil)
1323(defvar gnus-inhibit-limiting nil)
1324(defvar gnus-newsgroup-adaptive-score-file nil)
1325(defvar gnus-current-score-file nil)
1326(defvar gnus-current-move-group nil)
1327(defvar gnus-current-copy-group nil)
1328(defvar gnus-current-crosspost-group nil)
23f87bed 1329(defvar gnus-newsgroup-display nil)
eec82323
LMI
1330
1331(defvar gnus-newsgroup-dependencies nil)
1332(defvar gnus-newsgroup-adaptive nil)
1333(defvar gnus-summary-display-article-function nil)
1334(defvar gnus-summary-highlight-line-function nil
1335 "Function called after highlighting a summary line.")
1336
1337(defvar gnus-summary-line-format-alist
1338 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1339 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1340 (?s gnus-tmp-subject-or-nil ?s)
1341 (?n gnus-tmp-name ?s)
1342 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1343 ?s)
1344 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1345 gnus-tmp-from) ?s)
1346 (?F gnus-tmp-from ?s)
1347 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1348 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1349 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
6748645f 1350 (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
eec82323
LMI
1351 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1352 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1353 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
23f87bed
MB
1354 (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
1355 (?L gnus-tmp-lines ?s)
1356 (?O gnus-tmp-downloaded ?c)
eec82323
LMI
1357 (?I gnus-tmp-indentation ?s)
1358 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1359 (?R gnus-tmp-replied ?c)
1360 (?\[ gnus-tmp-opening-bracket ?c)
1361 (?\] gnus-tmp-closing-bracket ?c)
1362 (?\> (make-string gnus-tmp-level ? ) ?s)
1363 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1364 (?i gnus-tmp-score ?d)
1365 (?z gnus-tmp-score-char ?c)
eec82323
LMI
1366 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1367 (?U gnus-tmp-unread ?c)
23f87bed
MB
1368 (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
1369 ?s)
eec82323
LMI
1370 (?t (gnus-summary-number-of-articles-in-thread
1371 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1372 ?d)
1373 (?e (gnus-summary-number-of-articles-in-thread
1374 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1375 ?c)
1376 (?u gnus-tmp-user-defined ?s)
23f87bed
MB
1377 (?P (gnus-pick-line-number) ?d)
1378 (?B gnus-tmp-thread-tree-header-string ?s)
1379 (user-date (gnus-user-date
1380 ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
16409b0b
GM
1381 "An alist of format specifications that can appear in summary lines.
1382These are paired with what variables they correspond with, along with
1383the type of the variable (string, integer, character, etc).")
eec82323
LMI
1384
1385(defvar gnus-summary-dummy-line-format-alist
1386 `((?S gnus-tmp-subject ?s)
1387 (?N gnus-tmp-number ?d)
1388 (?u gnus-tmp-user-defined ?s)))
1389
1390(defvar gnus-summary-mode-line-format-alist
1391 `((?G gnus-tmp-group-name ?s)
1392 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1393 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1394 (?A gnus-tmp-article-number ?d)
1395 (?Z gnus-tmp-unread-and-unselected ?s)
1396 (?V gnus-version ?s)
1397 (?U gnus-tmp-unread-and-unticked ?d)
1398 (?S gnus-tmp-subject ?s)
1399 (?e gnus-tmp-unselected ?d)
1400 (?u gnus-tmp-user-defined ?s)
1401 (?d (length gnus-newsgroup-dormant) ?d)
1402 (?t (length gnus-newsgroup-marked) ?d)
23f87bed 1403 (?h (length gnus-newsgroup-spam-marked) ?d)
eec82323 1404 (?r (length gnus-newsgroup-reads) ?d)
6748645f 1405 (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
eec82323
LMI
1406 (?E gnus-newsgroup-expunged-tally ?d)
1407 (?s (gnus-current-score-file-nondirectory) ?s)))
1408
c1717fbd
GM
1409;; This is here rather than in gnus-art for compilation reasons.
1410(defvar gnus-article-mode-line-format-alist
1411 (nconc '((?w (gnus-article-wash-status) ?s)
1412 (?m (gnus-article-mime-part-status) ?s))
1413 gnus-summary-mode-line-format-alist))
1414
eec82323
LMI
1415(defvar gnus-last-search-regexp nil
1416 "Default regexp for article search command.")
1417
1418(defvar gnus-last-shell-command nil
1419 "Default shell command on article.")
1420
23f87bed
MB
1421(defvar gnus-newsgroup-agentized nil
1422 "Locally bound in each summary buffer to indicate whether the server has been agentized.")
eec82323
LMI
1423(defvar gnus-newsgroup-begin nil)
1424(defvar gnus-newsgroup-end nil)
1425(defvar gnus-newsgroup-last-rmail nil)
1426(defvar gnus-newsgroup-last-mail nil)
1427(defvar gnus-newsgroup-last-folder nil)
1428(defvar gnus-newsgroup-last-file nil)
26c9afc3 1429(defvar gnus-newsgroup-last-directory nil)
eec82323
LMI
1430(defvar gnus-newsgroup-auto-expire nil)
1431(defvar gnus-newsgroup-active nil)
1432
1433(defvar gnus-newsgroup-data nil)
1434(defvar gnus-newsgroup-data-reverse nil)
1435(defvar gnus-newsgroup-limit nil)
1436(defvar gnus-newsgroup-limits nil)
23f87bed 1437(defvar gnus-summary-use-undownloaded-faces nil)
eec82323
LMI
1438
1439(defvar gnus-newsgroup-unreads nil
23f87bed 1440 "Sorted list of unread articles in the current newsgroup.")
eec82323
LMI
1441
1442(defvar gnus-newsgroup-unselected nil
23f87bed 1443 "Sorted list of unselected unread articles in the current newsgroup.")
eec82323
LMI
1444
1445(defvar gnus-newsgroup-reads nil
1446 "Alist of read articles and article marks in the current newsgroup.")
1447
1448(defvar gnus-newsgroup-expunged-tally nil)
1449
1450(defvar gnus-newsgroup-marked nil
23f87bed
MB
1451 "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
1452
1453(defvar gnus-newsgroup-spam-marked nil
1454 "List of ranges of articles that have been marked as spam.")
eec82323
LMI
1455
1456(defvar gnus-newsgroup-killed nil
1457 "List of ranges of articles that have been through the scoring process.")
1458
1459(defvar gnus-newsgroup-cached nil
23f87bed 1460 "Sorted list of articles that come from the article cache.")
eec82323
LMI
1461
1462(defvar gnus-newsgroup-saved nil
1463 "List of articles that have been saved.")
1464
1465(defvar gnus-newsgroup-kill-headers nil)
1466
1467(defvar gnus-newsgroup-replied nil
1468 "List of articles that have been replied to in the current newsgroup.")
1469
23f87bed
MB
1470(defvar gnus-newsgroup-forwarded nil
1471 "List of articles that have been forwarded in the current newsgroup.")
1472
1473(defvar gnus-newsgroup-recent nil
1474 "List of articles that have are recent in the current newsgroup.")
1475
eec82323 1476(defvar gnus-newsgroup-expirable nil
23f87bed 1477 "Sorted list of articles in the current newsgroup that can be expired.")
eec82323
LMI
1478
1479(defvar gnus-newsgroup-processable nil
1480 "List of articles in the current newsgroup that can be processed.")
1481
6748645f 1482(defvar gnus-newsgroup-downloadable nil
23f87bed
MB
1483 "Sorted list of articles in the current newsgroup that can be processed.")
1484
1485(defvar gnus-newsgroup-unfetched nil
1486 "Sorted list of articles in the current newsgroup whose headers have
1487not been fetched into the agent.
1488
1489This list will always be a subset of gnus-newsgroup-undownloaded.")
6748645f
LMI
1490
1491(defvar gnus-newsgroup-undownloaded nil
23f87bed 1492 "List of articles in the current newsgroup that haven't been downloaded.")
6748645f
LMI
1493
1494(defvar gnus-newsgroup-unsendable nil
1495 "List of articles in the current newsgroup that won't be sent.")
1496
eec82323
LMI
1497(defvar gnus-newsgroup-bookmarks nil
1498 "List of articles in the current newsgroup that have bookmarks.")
1499
1500(defvar gnus-newsgroup-dormant nil
23f87bed
MB
1501 "Sorted list of dormant articles in the current newsgroup.")
1502
1503(defvar gnus-newsgroup-unseen nil
1504 "List of unseen articles in the current newsgroup.")
1505
1506(defvar gnus-newsgroup-seen nil
1507 "Range of seen articles in the current newsgroup.")
1508
1509(defvar gnus-newsgroup-articles nil
1510 "List of articles in the current newsgroup.")
eec82323
LMI
1511
1512(defvar gnus-newsgroup-scored nil
1513 "List of scored articles in the current newsgroup.")
1514
1515(defvar gnus-newsgroup-headers nil
1516 "List of article headers in the current newsgroup.")
1517
1518(defvar gnus-newsgroup-threads nil)
1519
1520(defvar gnus-newsgroup-prepared nil
1521 "Whether the current group has been prepared properly.")
1522
1523(defvar gnus-newsgroup-ancient nil
1524 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1525
1526(defvar gnus-newsgroup-sparse nil)
1527
1528(defvar gnus-current-article nil)
1529(defvar gnus-article-current nil)
1530(defvar gnus-current-headers nil)
1531(defvar gnus-have-all-headers nil)
1532(defvar gnus-last-article nil)
1533(defvar gnus-newsgroup-history nil)
16409b0b
GM
1534(defvar gnus-newsgroup-charset nil)
1535(defvar gnus-newsgroup-ephemeral-charset nil)
1536(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
eec82323 1537
23f87bed
MB
1538(defvar gnus-article-before-search nil)
1539
1540(defvar gnus-summary-local-variables
eec82323
LMI
1541 '(gnus-newsgroup-name
1542 gnus-newsgroup-begin gnus-newsgroup-end
1543 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1544 gnus-newsgroup-last-folder gnus-newsgroup-last-file
26c9afc3 1545 gnus-newsgroup-last-directory
eec82323
LMI
1546 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1547 gnus-newsgroup-unselected gnus-newsgroup-marked
23f87bed 1548 gnus-newsgroup-spam-marked
eec82323 1549 gnus-newsgroup-reads gnus-newsgroup-saved
23f87bed
MB
1550 gnus-newsgroup-replied gnus-newsgroup-forwarded
1551 gnus-newsgroup-recent
1552 gnus-newsgroup-expirable
eec82323 1553 gnus-newsgroup-processable gnus-newsgroup-killed
6748645f 1554 gnus-newsgroup-downloadable gnus-newsgroup-undownloaded
23f87bed
MB
1555 gnus-newsgroup-unfetched
1556 gnus-newsgroup-unsendable gnus-newsgroup-unseen
1557 gnus-newsgroup-seen gnus-newsgroup-articles
eec82323
LMI
1558 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1559 gnus-newsgroup-headers gnus-newsgroup-threads
1560 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1561 gnus-current-article gnus-current-headers gnus-have-all-headers
1562 gnus-last-article gnus-article-internal-prepare-hook
1563 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1564 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1565 gnus-thread-expunge-below
16409b0b
GM
1566 gnus-score-alist gnus-current-score-file
1567 (gnus-summary-expunge-below . global)
eec82323 1568 (gnus-summary-mark-below . global)
16409b0b 1569 (gnus-orphan-score . global)
eec82323
LMI
1570 gnus-newsgroup-active gnus-scores-exclude-files
1571 gnus-newsgroup-history gnus-newsgroup-ancient
1572 gnus-newsgroup-sparse gnus-newsgroup-process-stack
1573 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1574 gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
1575 (gnus-newsgroup-expunged-tally . 0)
1576 gnus-cache-removable-articles gnus-newsgroup-cached
1577 gnus-newsgroup-data gnus-newsgroup-data-reverse
16409b0b 1578 gnus-newsgroup-limit gnus-newsgroup-limits
23f87bed
MB
1579 gnus-newsgroup-charset gnus-newsgroup-display
1580 gnus-summary-use-undownloaded-faces)
eec82323
LMI
1581 "Variables that are buffer-local to the summary buffers.")
1582
23f87bed
MB
1583(defvar gnus-newsgroup-variables nil
1584 "A list of variables that have separate values in different newsgroups.
1585A list of newsgroup (summary buffer) local variables, or cons of
1586variables and their default expressions to be evalled (when the default
1587values are not nil), that should be made global while the summary buffer
1588is active.
1589
1590Note: The default expressions will be evaluated (using function `eval')
1591before assignment to the local variable rather than just assigned to it.
1592If the default expression is the symbol `global', that symbol will not
1593be evaluated but the global value of the local variable will be used
1594instead.
1595
1596These variables can be used to set variables in the group parameters
1597while still allowing them to affect operations done in other buffers.
1598For example:
1599
1600\(setq gnus-newsgroup-variables
1601 '(message-use-followup-to
1602 (gnus-visible-headers .
1603 \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
1604")
1605
23f87bed
MB
1606(eval-when-compile
1607 ;; Bind features so that require will believe that gnus-sum has
1608 ;; already been loaded (avoids infinite recursion)
1609 (let ((features (cons 'gnus-sum features)))
23f87bed 1610 (require 'gnus-art)))
eec82323 1611
16409b0b
GM
1612;; MIME stuff.
1613
1614(defvar gnus-decode-encoded-word-methods
1615 '(mail-decode-encoded-word-string)
1616 "List of methods used to decode encoded words.
1617
23f87bed
MB
1618This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
1619is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
1620\(REGEXP . FUNCTION), FUNCTION will be only apply to thes newsgroups
16409b0b
GM
1621whose names match REGEXP.
1622
1623For example:
23f87bed 1624\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
16409b0b
GM
1625 mail-decode-encoded-word-string
1626 (\"chinese\" . rfc1843-decode-string))")
1627
1628(defvar gnus-decode-encoded-word-methods-cache nil)
1629
1630(defun gnus-multi-decode-encoded-word-string (string)
1631 "Apply the functions from `gnus-encoded-word-methods' that match."
1632 (unless (and gnus-decode-encoded-word-methods-cache
1633 (eq gnus-newsgroup-name
1634 (car gnus-decode-encoded-word-methods-cache)))
1635 (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
01c52d31
MB
1636 (dolist (method gnus-decode-encoded-word-methods)
1637 (if (symbolp method)
1638 (nconc gnus-decode-encoded-word-methods-cache (list method))
1639 (if (and gnus-newsgroup-name
1640 (string-match (car method) gnus-newsgroup-name))
1641 (nconc gnus-decode-encoded-word-methods-cache
1642 (list (cdr method)))))))
1643 (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
1644 (setq string (funcall method string))))
16409b0b 1645
eec82323
LMI
1646;; Subject simplification.
1647
6748645f 1648(defun gnus-simplify-whitespace (str)
16409b0b 1649 "Remove excessive whitespace from STR."
23f87bed
MB
1650 ;; Multiple spaces.
1651 (while (string-match "[ \t][ \t]+" str)
1652 (setq str (concat (substring str 0 (match-beginning 0))
1653 " "
1654 (substring str (match-end 0)))))
1655 ;; Leading spaces.
1656 (when (string-match "^[ \t]+" str)
1657 (setq str (substring str (match-end 0))))
1658 ;; Trailing spaces.
1659 (when (string-match "[ \t]+$" str)
1660 (setq str (substring str 0 (match-beginning 0))))
1661 str)
1662
1663(defun gnus-simplify-all-whitespace (str)
1664 "Remove all whitespace from STR."
1665 (while (string-match "[ \t\n]+" str)
1666 (setq str (replace-match "" nil nil str)))
1667 str)
6748645f 1668
eec82323
LMI
1669(defsubst gnus-simplify-subject-re (subject)
1670 "Remove \"Re:\" from subject lines."
23f87bed 1671 (if (string-match message-subject-re-regexp subject)
eec82323
LMI
1672 (substring subject (match-end 0))
1673 subject))
1674
1675(defun gnus-simplify-subject (subject &optional re-only)
1676 "Remove `Re:' and words in parentheses.
1677If RE-ONLY is non-nil, strip leading `Re:'s only."
1678 (let ((case-fold-search t)) ;Ignore case.
1679 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
1680 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
1681 (setq subject (substring subject (match-end 0))))
1682 ;; Remove uninteresting prefixes.
1683 (when (and (not re-only)
1684 gnus-simplify-ignored-prefixes
1685 (string-match gnus-simplify-ignored-prefixes subject))
1686 (setq subject (substring subject (match-end 0))))
1687 ;; Remove words in parentheses from end.
1688 (unless re-only
1689 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
1690 (setq subject (substring subject 0 (match-beginning 0)))))
1691 ;; Return subject string.
1692 subject))
1693
1694;; Remove any leading "re:"s, any trailing paren phrases, and simplify
1695;; all whitespace.
1696(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
1697 (goto-char (point-min))
1698 (while (re-search-forward regexp nil t)
16409b0b 1699 (replace-match (or newtext ""))))
eec82323
LMI
1700
1701(defun gnus-simplify-buffer-fuzzy ()
1702 "Simplify string in the buffer fuzzily.
1703The string in the accessible portion of the current buffer is simplified.
1704It is assumed to be a single-line subject.
1705Whitespace is generally cleaned up, and miscellaneous leading/trailing
1706matter is removed. Additional things can be deleted by setting
16409b0b 1707`gnus-simplify-subject-fuzzy-regexp'."
eec82323
LMI
1708 (let ((case-fold-search t)
1709 (modified-tick))
1710 (gnus-simplify-buffer-fuzzy-step "\t" " ")
1711
1712 (while (not (eq modified-tick (buffer-modified-tick)))
1713 (setq modified-tick (buffer-modified-tick))
1714 (cond
1715 ((listp gnus-simplify-subject-fuzzy-regexp)
01c52d31
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1716 (mapc 'gnus-simplify-buffer-fuzzy-step
1717 gnus-simplify-subject-fuzzy-regexp))
eec82323
LMI
1718 (gnus-simplify-subject-fuzzy-regexp
1719 (gnus-simplify-buffer-fuzzy-step gnus-simplify-subject-fuzzy-regexp)))
1720 (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
1721 (gnus-simplify-buffer-fuzzy-step
1722 "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
1723 (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
1724
1725 (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
1726 (gnus-simplify-buffer-fuzzy-step " +" " ")
1727 (gnus-simplify-buffer-fuzzy-step " $")
1728 (gnus-simplify-buffer-fuzzy-step "^ +")))
1729
1730(defun gnus-simplify-subject-fuzzy (subject)
1731 "Simplify a subject string fuzzily.
6748645f 1732See `gnus-simplify-buffer-fuzzy' for details."
eec82323
LMI
1733 (save-excursion
1734 (gnus-set-work-buffer)
1735 (let ((case-fold-search t))
6748645f
LMI
1736 ;; Remove uninteresting prefixes.
1737 (when (and gnus-simplify-ignored-prefixes
1738 (string-match gnus-simplify-ignored-prefixes subject))
1739 (setq subject (substring subject (match-end 0))))
eec82323
LMI
1740 (insert subject)
1741 (inline (gnus-simplify-buffer-fuzzy))
1742 (buffer-string))))
1743
1744(defsubst gnus-simplify-subject-fully (subject)
23f87bed 1745 "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
eec82323 1746 (cond
6748645f
LMI
1747 (gnus-simplify-subject-functions
1748 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
1749 ((null gnus-summary-gather-subject-limit)
1750 (gnus-simplify-subject-re subject))
1751 ((eq gnus-summary-gather-subject-limit 'fuzzy)
1752 (gnus-simplify-subject-fuzzy subject))
1753 ((numberp gnus-summary-gather-subject-limit)
01c52d31
MB
1754 (truncate-string-to-width (gnus-simplify-subject-re subject)
1755 gnus-summary-gather-subject-limit))
eec82323
LMI
1756 (t
1757 subject)))
1758
1759(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
6748645f 1760 "Check whether two subjects are equal.
23f87bed 1761If optional argument SIMPLE-FIRST is t, first argument is already
6748645f 1762simplified."
eec82323
LMI
1763 (cond
1764 ((null simple-first)
1765 (equal (gnus-simplify-subject-fully s1)
1766 (gnus-simplify-subject-fully s2)))
1767 (t
1768 (equal s1
1769 (gnus-simplify-subject-fully s2)))))
1770
1771(defun gnus-summary-bubble-group ()
1772 "Increase the score of the current group.
1773This is a handy function to add to `gnus-summary-exit-hook' to
1774increase the score of each group you read."
1775 (gnus-group-add-score gnus-newsgroup-name))
1776
1777\f
1778;;;
1779;;; Gnus summary mode
1780;;;
1781
1782(put 'gnus-summary-mode 'mode-class 'special)
1783
1653df0f
SZ
1784(defvar gnus-article-commands-menu)
1785
23f87bed
MB
1786;; Non-orthogonal keys
1787
1788(gnus-define-keys gnus-summary-mode-map
1789 " " gnus-summary-next-page
1790 "\177" gnus-summary-prev-page
1791 [delete] gnus-summary-prev-page
1792 [backspace] gnus-summary-prev-page
1793 "\r" gnus-summary-scroll-up
1794 "\M-\r" gnus-summary-scroll-down
1795 "n" gnus-summary-next-unread-article
1796 "p" gnus-summary-prev-unread-article
1797 "N" gnus-summary-next-article
1798 "P" gnus-summary-prev-article
1799 "\M-\C-n" gnus-summary-next-same-subject
1800 "\M-\C-p" gnus-summary-prev-same-subject
1801 "\M-n" gnus-summary-next-unread-subject
1802 "\M-p" gnus-summary-prev-unread-subject
1803 "." gnus-summary-first-unread-article
1804 "," gnus-summary-best-unread-article
1805 "\M-s" gnus-summary-search-article-forward
1806 "\M-r" gnus-summary-search-article-backward
01c52d31
MB
1807 "\M-S" gnus-summary-repeat-search-article-forward
1808 "\M-R" gnus-summary-repeat-search-article-backward
23f87bed
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1809 "<" gnus-summary-beginning-of-article
1810 ">" gnus-summary-end-of-article
1811 "j" gnus-summary-goto-article
1812 "^" gnus-summary-refer-parent-article
1813 "\M-^" gnus-summary-refer-article
1814 "u" gnus-summary-tick-article-forward
1815 "!" gnus-summary-tick-article-forward
1816 "U" gnus-summary-tick-article-backward
1817 "d" gnus-summary-mark-as-read-forward
1818 "D" gnus-summary-mark-as-read-backward
1819 "E" gnus-summary-mark-as-expirable
1820 "\M-u" gnus-summary-clear-mark-forward
1821 "\M-U" gnus-summary-clear-mark-backward
1822 "k" gnus-summary-kill-same-subject-and-select
1823 "\C-k" gnus-summary-kill-same-subject
1824 "\M-\C-k" gnus-summary-kill-thread
1825 "\M-\C-l" gnus-summary-lower-thread
1826 "e" gnus-summary-edit-article
1827 "#" gnus-summary-mark-as-processable
1828 "\M-#" gnus-summary-unmark-as-processable
1829 "\M-\C-t" gnus-summary-toggle-threads
1830 "\M-\C-s" gnus-summary-show-thread
1831 "\M-\C-h" gnus-summary-hide-thread
1832 "\M-\C-f" gnus-summary-next-thread
1833 "\M-\C-b" gnus-summary-prev-thread
1834 [(meta down)] gnus-summary-next-thread
1835 [(meta up)] gnus-summary-prev-thread
1836 "\M-\C-u" gnus-summary-up-thread
1837 "\M-\C-d" gnus-summary-down-thread
1838 "&" gnus-summary-execute-command
1839 "c" gnus-summary-catchup-and-exit
1840 "\C-w" gnus-summary-mark-region-as-read
1841 "\C-t" gnus-summary-toggle-truncation
1842 "?" gnus-summary-mark-as-dormant
1843 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
1844 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6ecfe5c2 1845 "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
23f87bed
MB
1846 "\C-c\C-s\C-l" gnus-summary-sort-by-lines
1847 "\C-c\C-s\C-c" gnus-summary-sort-by-chars
1848 "\C-c\C-s\C-a" gnus-summary-sort-by-author
01c52d31 1849 "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
23f87bed
MB
1850 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
1851 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6ecfe5c2 1852 "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
23f87bed
MB
1853 "\C-c\C-s\C-i" gnus-summary-sort-by-score
1854 "\C-c\C-s\C-o" gnus-summary-sort-by-original
1855 "\C-c\C-s\C-r" gnus-summary-sort-by-random
1856 "=" gnus-summary-expand-window
1857 "\C-x\C-s" gnus-summary-reselect-current-group
1858 "\M-g" gnus-summary-rescan-group
23f87bed
MB
1859 "\C-c\C-r" gnus-summary-caesar-message
1860 "f" gnus-summary-followup
1861 "F" gnus-summary-followup-with-original
1862 "C" gnus-summary-cancel-article
1863 "r" gnus-summary-reply
1864 "R" gnus-summary-reply-with-original
1865 "\C-c\C-f" gnus-summary-mail-forward
1866 "o" gnus-summary-save-article
1867 "\C-o" gnus-summary-save-article-mail
1868 "|" gnus-summary-pipe-output
1869 "\M-k" gnus-summary-edit-local-kill
1870 "\M-K" gnus-summary-edit-global-kill
1871 ;; "V" gnus-version
1872 "\C-c\C-d" gnus-summary-describe-group
1873 "q" gnus-summary-exit
1874 "Q" gnus-summary-exit-no-update
1875 "\C-c\C-i" gnus-info-find-node
1876 gnus-mouse-2 gnus-mouse-pick-article
132cf96d 1877 [follow-link] mouse-face
23f87bed
MB
1878 "m" gnus-summary-mail-other-window
1879 "a" gnus-summary-post-news
23f87bed
MB
1880 "x" gnus-summary-limit-to-unread
1881 "s" gnus-summary-isearch-article
1882 "t" gnus-summary-toggle-header
1883 "g" gnus-summary-show-article
1884 "l" gnus-summary-goto-last-article
1885 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
1886 "\C-d" gnus-summary-enter-digest-group
1887 "\M-\C-d" gnus-summary-read-document
1888 "\M-\C-e" gnus-summary-edit-parameters
1889 "\M-\C-a" gnus-summary-customize-parameters
1890 "\C-c\C-b" gnus-bug
1891 "*" gnus-cache-enter-article
1892 "\M-*" gnus-cache-remove-article
1893 "\M-&" gnus-summary-universal-argument
1894 "\C-l" gnus-recenter
1895 "I" gnus-summary-increase-score
1896 "L" gnus-summary-lower-score
1897 "\M-i" gnus-symbolic-argument
1898 "h" gnus-summary-select-article-buffer
1899
1900 "b" gnus-article-view-part
1901 "\M-t" gnus-summary-toggle-display-buttonized
1902
1903 "V" gnus-summary-score-map
1904 "X" gnus-uu-extract-map
1905 "S" gnus-summary-send-map)
1906
1907;; Sort of orthogonal keymap
1908(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
1909 "t" gnus-summary-tick-article-forward
1910 "!" gnus-summary-tick-article-forward
1911 "d" gnus-summary-mark-as-read-forward
1912 "r" gnus-summary-mark-as-read-forward
1913 "c" gnus-summary-clear-mark-forward
1914 " " gnus-summary-clear-mark-forward
1915 "e" gnus-summary-mark-as-expirable
1916 "x" gnus-summary-mark-as-expirable
1917 "?" gnus-summary-mark-as-dormant
1918 "b" gnus-summary-set-bookmark
1919 "B" gnus-summary-remove-bookmark
1920 "#" gnus-summary-mark-as-processable
1921 "\M-#" gnus-summary-unmark-as-processable
1922 "S" gnus-summary-limit-include-expunged
1923 "C" gnus-summary-catchup
1924 "H" gnus-summary-catchup-to-here
1925 "h" gnus-summary-catchup-from-here
1926 "\C-c" gnus-summary-catchup-all
1927 "k" gnus-summary-kill-same-subject-and-select
1928 "K" gnus-summary-kill-same-subject
1929 "P" gnus-uu-mark-map)
1930
1931(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
1932 "c" gnus-summary-clear-above
1933 "u" gnus-summary-tick-above
1934 "m" gnus-summary-mark-above
1935 "k" gnus-summary-kill-below)
1936
1937(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
1938 "/" gnus-summary-limit-to-subject
1939 "n" gnus-summary-limit-to-articles
01c52d31
MB
1940 "b" gnus-summary-limit-to-bodies
1941 "h" gnus-summary-limit-to-headers
23f87bed
MB
1942 "w" gnus-summary-pop-limit
1943 "s" gnus-summary-limit-to-subject
1944 "a" gnus-summary-limit-to-author
1945 "u" gnus-summary-limit-to-unread
1946 "m" gnus-summary-limit-to-marks
1947 "M" gnus-summary-limit-exclude-marks
1948 "v" gnus-summary-limit-to-score
1949 "*" gnus-summary-limit-include-cached
1950 "D" gnus-summary-limit-include-dormant
1951 "T" gnus-summary-limit-include-thread
1952 "d" gnus-summary-limit-exclude-dormant
1953 "t" gnus-summary-limit-to-age
1954 "." gnus-summary-limit-to-unseen
1955 "x" gnus-summary-limit-to-extra
1956 "p" gnus-summary-limit-to-display-predicate
1957 "E" gnus-summary-limit-include-expunged
1958 "c" gnus-summary-limit-exclude-childless-dormant
1959 "C" gnus-summary-limit-mark-excluded-as-read
1960 "o" gnus-summary-insert-old-articles
01c52d31
MB
1961 "N" gnus-summary-insert-new-articles
1962 "S" gnus-summary-limit-to-singletons
1963 "r" gnus-summary-limit-to-replied
1964 "R" gnus-summary-limit-to-recipient
1965 "A" gnus-summary-limit-to-address)
23f87bed
MB
1966
1967(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
1968 "n" gnus-summary-next-unread-article
1969 "p" gnus-summary-prev-unread-article
1970 "N" gnus-summary-next-article
1971 "P" gnus-summary-prev-article
1972 "\C-n" gnus-summary-next-same-subject
1973 "\C-p" gnus-summary-prev-same-subject
1974 "\M-n" gnus-summary-next-unread-subject
1975 "\M-p" gnus-summary-prev-unread-subject
1976 "f" gnus-summary-first-unread-article
1977 "b" gnus-summary-best-unread-article
1978 "j" gnus-summary-goto-article
1979 "g" gnus-summary-goto-subject
1980 "l" gnus-summary-goto-last-article
1981 "o" gnus-summary-pop-article)
1982
1983(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
1984 "k" gnus-summary-kill-thread
01c52d31 1985 "E" gnus-summary-expire-thread
23f87bed
MB
1986 "l" gnus-summary-lower-thread
1987 "i" gnus-summary-raise-thread
1988 "T" gnus-summary-toggle-threads
1989 "t" gnus-summary-rethread-current
1990 "^" gnus-summary-reparent-thread
01c52d31 1991 "\M-^" gnus-summary-reparent-children
23f87bed
MB
1992 "s" gnus-summary-show-thread
1993 "S" gnus-summary-show-all-threads
1994 "h" gnus-summary-hide-thread
1995 "H" gnus-summary-hide-all-threads
1996 "n" gnus-summary-next-thread
1997 "p" gnus-summary-prev-thread
1998 "u" gnus-summary-up-thread
1999 "o" gnus-summary-top-thread
2000 "d" gnus-summary-down-thread
2001 "#" gnus-uu-mark-thread
2002 "\M-#" gnus-uu-unmark-thread)
2003
2004(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
2005 "g" gnus-summary-prepare
2006 "c" gnus-summary-insert-cached-articles
01c52d31
MB
2007 "d" gnus-summary-insert-dormant-articles
2008 "t" gnus-summary-insert-ticked-articles)
23f87bed
MB
2009
2010(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
2011 "c" gnus-summary-catchup-and-exit
2012 "C" gnus-summary-catchup-all-and-exit
2013 "E" gnus-summary-exit-no-update
2014 "Q" gnus-summary-exit
2015 "Z" gnus-summary-exit
2016 "n" gnus-summary-catchup-and-goto-next-group
01c52d31 2017 "p" gnus-summary-catchup-and-goto-prev-group
23f87bed
MB
2018 "R" gnus-summary-reselect-current-group
2019 "G" gnus-summary-rescan-group
2020 "N" gnus-summary-next-group
2021 "s" gnus-summary-save-newsrc
2022 "P" gnus-summary-prev-group)
2023
2024(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
2025 " " gnus-summary-next-page
2026 "n" gnus-summary-next-page
2027 "\177" gnus-summary-prev-page
2028 [delete] gnus-summary-prev-page
2029 "p" gnus-summary-prev-page
2030 "\r" gnus-summary-scroll-up
2031 "\M-\r" gnus-summary-scroll-down
2032 "<" gnus-summary-beginning-of-article
2033 ">" gnus-summary-end-of-article
2034 "b" gnus-summary-beginning-of-article
2035 "e" gnus-summary-end-of-article
2036 "^" gnus-summary-refer-parent-article
2037 "r" gnus-summary-refer-parent-article
2038 "D" gnus-summary-enter-digest-group
2039 "R" gnus-summary-refer-references
2040 "T" gnus-summary-refer-thread
2041 "g" gnus-summary-show-article
2042 "s" gnus-summary-isearch-article
2043 "P" gnus-summary-print-article
01c52d31 2044 "S" gnus-sticky-article
23f87bed
MB
2045 "M" gnus-mailing-list-insinuate
2046 "t" gnus-article-babel)
2047
2048(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
2049 "b" gnus-article-add-buttons
2050 "B" gnus-article-add-buttons-to-head
2051 "o" gnus-article-treat-overstrike
2052 "e" gnus-article-emphasize
2053 "w" gnus-article-fill-cited-article
2054 "Q" gnus-article-fill-long-lines
01c52d31 2055 "L" gnus-article-toggle-truncate-lines
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2056 "C" gnus-article-capitalize-sentences
2057 "c" gnus-article-remove-cr
2058 "q" gnus-article-de-quoted-unreadable
2059 "6" gnus-article-de-base64-unreadable
2060 "Z" gnus-article-decode-HZ
01c52d31 2061 "A" gnus-article-treat-ansi-sequences
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2062 "h" gnus-article-wash-html
2063 "u" gnus-article-unsplit-urls
2064 "s" gnus-summary-force-verify-and-decrypt
2065 "f" gnus-article-display-x-face
2066 "l" gnus-summary-stop-page-breaking
2067 "r" gnus-summary-caesar-message
2068 "m" gnus-summary-morse-message
2069 "t" gnus-summary-toggle-header
2070 "g" gnus-treat-smiley
2071 "v" gnus-summary-verbose-headers
2072 "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
2073 "p" gnus-article-verify-x-pgp-sig
01c52d31
MB
2074 "d" gnus-article-treat-dumbquotes
2075 "i" gnus-summary-idna-message)
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2076
2077(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
2078 ;; mnemonic: deuglif*Y*
2079 "u" gnus-article-outlook-unwrap-lines
2080 "a" gnus-article-outlook-repair-attribution
2081 "c" gnus-article-outlook-rearrange-citation
2082 "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
2083
2084(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
2085 "a" gnus-article-hide
2086 "h" gnus-article-hide-headers
2087 "b" gnus-article-hide-boring-headers
2088 "s" gnus-article-hide-signature
2089 "c" gnus-article-hide-citation
2090 "C" gnus-article-hide-citation-in-followups
2091 "l" gnus-article-hide-list-identifiers
2092 "B" gnus-article-strip-banner
2093 "P" gnus-article-hide-pem
2094 "\C-c" gnus-article-hide-citation-maybe)
2095
2096(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
2097 "a" gnus-article-highlight
2098 "h" gnus-article-highlight-headers
2099 "c" gnus-article-highlight-citation
2100 "s" gnus-article-highlight-signature)
2101
2102(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
2103 "f" gnus-article-treat-fold-headers
2104 "u" gnus-article-treat-unfold-headers
2105 "n" gnus-article-treat-fold-newsgroups)
2106
2107(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
2108 "x" gnus-article-display-x-face
2109 "d" gnus-article-display-face
2110 "s" gnus-treat-smiley
2111 "D" gnus-article-remove-images
25f28806 2112 "W" gnus-html-show-images
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2113 "f" gnus-treat-from-picon
2114 "m" gnus-treat-mail-picon
2115 "n" gnus-treat-newsgroups-picon)
2116
2117(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
2118 "w" gnus-article-decode-mime-words
2119 "c" gnus-article-decode-charset
2120 "v" gnus-mime-view-all-parts
2121 "b" gnus-article-view-part)
2122
2123(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
2124 "z" gnus-article-date-ut
2125 "u" gnus-article-date-ut
2126 "l" gnus-article-date-local
2127 "p" gnus-article-date-english
2128 "e" gnus-article-date-lapsed
2129 "o" gnus-article-date-original
2130 "i" gnus-article-date-iso8601
2131 "s" gnus-article-date-user)
2132
2133(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
2134 "t" gnus-article-remove-trailing-blank-lines
2135 "l" gnus-article-strip-leading-blank-lines
2136 "m" gnus-article-strip-multiple-blank-lines
2137 "a" gnus-article-strip-blank-lines
2138 "A" gnus-article-strip-all-blank-lines
2139 "s" gnus-article-strip-leading-space
2140 "e" gnus-article-strip-trailing-space
2141 "w" gnus-article-remove-leading-whitespace)
2142
2143(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
2144 "v" gnus-version
2145 "f" gnus-summary-fetch-faq
2146 "d" gnus-summary-describe-group
2147 "h" gnus-summary-describe-briefly
2148 "i" gnus-info-find-node
2149 "c" gnus-group-fetch-charter
2150 "C" gnus-group-fetch-control)
2151
2152(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
2153 "e" gnus-summary-expire-articles
2154 "\M-\C-e" gnus-summary-expire-articles-now
2155 "\177" gnus-summary-delete-article
2156 [delete] gnus-summary-delete-article
2157 [backspace] gnus-summary-delete-article
2158 "m" gnus-summary-move-article
2159 "r" gnus-summary-respool-article
2160 "w" gnus-summary-edit-article
2161 "c" gnus-summary-copy-article
2162 "B" gnus-summary-crosspost-article
2163 "q" gnus-summary-respool-query
2164 "t" gnus-summary-respool-trace
2165 "i" gnus-summary-import-article
2166 "I" gnus-summary-create-article
2167 "p" gnus-summary-article-posted-p)
2168
2169(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
2170 "o" gnus-summary-save-article
2171 "m" gnus-summary-save-article-mail
2172 "F" gnus-summary-write-article-file
2173 "r" gnus-summary-save-article-rmail
2174 "f" gnus-summary-save-article-file
2175 "b" gnus-summary-save-article-body-file
26c9afc3 2176 "B" gnus-summary-write-article-body-file
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2177 "h" gnus-summary-save-article-folder
2178 "v" gnus-summary-save-article-vm
2179 "p" gnus-summary-pipe-output
c4d82de8 2180 "P" gnus-summary-muttprint)
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2181
2182(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
2183 "b" gnus-summary-display-buttonized
2184 "m" gnus-summary-repair-multipart
2185 "v" gnus-article-view-part
2186 "o" gnus-article-save-part
01c52d31
MB
2187 "O" gnus-article-save-part-and-strip
2188 "r" gnus-article-replace-part
2189 "d" gnus-article-delete-part
2190 "t" gnus-article-view-part-as-type
2191 "j" gnus-article-jump-to-part
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2192 "c" gnus-article-copy-part
2193 "C" gnus-article-view-part-as-charset
2194 "e" gnus-article-view-part-externally
01c52d31 2195 "H" gnus-article-browse-html-article
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2196 "E" gnus-article-encrypt-body
2197 "i" gnus-article-inline-part
2198 "|" gnus-article-pipe-part)
2199
2200(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
2201 "p" gnus-summary-mark-as-processable
2202 "u" gnus-summary-unmark-as-processable
2203 "U" gnus-summary-unmark-all-processable
2204 "v" gnus-uu-mark-over
2205 "s" gnus-uu-mark-series
2206 "r" gnus-uu-mark-region
2207 "g" gnus-uu-unmark-region
2208 "R" gnus-uu-mark-by-regexp
2209 "G" gnus-uu-unmark-by-regexp
2210 "t" gnus-uu-mark-thread
2211 "T" gnus-uu-unmark-thread
2212 "a" gnus-uu-mark-all
2213 "b" gnus-uu-mark-buffer
2214 "S" gnus-uu-mark-sparse
2215 "k" gnus-summary-kill-process-mark
2216 "y" gnus-summary-yank-process-mark
2217 "w" gnus-summary-save-process-mark
2218 "i" gnus-uu-invert-processable)
2219
2220(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
2221 ;;"x" gnus-uu-extract-any
2222 "m" gnus-summary-save-parts
2223 "u" gnus-uu-decode-uu
2224 "U" gnus-uu-decode-uu-and-save
2225 "s" gnus-uu-decode-unshar
2226 "S" gnus-uu-decode-unshar-and-save
2227 "o" gnus-uu-decode-save
2228 "O" gnus-uu-decode-save
2229 "b" gnus-uu-decode-binhex
2230 "B" gnus-uu-decode-binhex
b890d447 2231 "Y" gnus-uu-decode-yenc
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2232 "p" gnus-uu-decode-postscript
2233 "P" gnus-uu-decode-postscript-and-save)
2234
2235(gnus-define-keys
2236 (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
2237 "u" gnus-uu-decode-uu-view
2238 "U" gnus-uu-decode-uu-and-save-view
2239 "s" gnus-uu-decode-unshar-view
2240 "S" gnus-uu-decode-unshar-and-save-view
2241 "o" gnus-uu-decode-save-view
2242 "O" gnus-uu-decode-save-view
2243 "b" gnus-uu-decode-binhex-view
2244 "B" gnus-uu-decode-binhex-view
2245 "p" gnus-uu-decode-postscript-view
2246 "P" gnus-uu-decode-postscript-and-save-view)
2247
2248(defvar gnus-article-post-menu nil)
2249
2250(defconst gnus-summary-menu-maxlen 20)
2251
2252(defun gnus-summary-menu-split (menu)
2253 ;; If we have lots of elements, divide them into groups of 20
2254 ;; and make a pane (or submenu) for each one.
2255 (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
2256 (let ((menu menu) sublists next
2257 (i 1))
2258 (while menu
2259 ;; Pull off the next gnus-summary-menu-maxlen elements
2260 ;; and make them the next element of sublist.
2261 (setq next (nthcdr gnus-summary-menu-maxlen menu))
2262 (if next
2263 (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
2264 nil))
2265 (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
2266 (aref (car (last menu)) 0)) menu)
2267 sublists))
2268 (setq i (1+ i))
2269 (setq menu next))
2270 (nreverse sublists))
2271 ;; Few elements--put them all in one pane.
2272 menu))
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LMI
2273
2274(defun gnus-summary-make-menu-bar ()
2275 (gnus-turn-off-edit-menu 'summary)
2276
2277 (unless (boundp 'gnus-summary-misc-menu)
2278
2279 (easy-menu-define
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2280 gnus-summary-kill-menu gnus-summary-mode-map ""
2281 (cons
2282 "Score"
2283 (nconc
2284 (list
2285 ["Customize" gnus-score-customize t])
2286 (gnus-make-score-map 'increase)
2287 (gnus-make-score-map 'lower)
2288 '(("Mark"
2289 ["Kill below" gnus-summary-kill-below t]
2290 ["Mark above" gnus-summary-mark-above t]
2291 ["Tick above" gnus-summary-tick-above t]
2292 ["Clear above" gnus-summary-clear-above t])
2293 ["Current score" gnus-summary-current-score t]
2294 ["Set score" gnus-summary-set-score t]
2295 ["Switch current score file..." gnus-score-change-score-file t]
2296 ["Set mark below..." gnus-score-set-mark-below t]
2297 ["Set expunge below..." gnus-score-set-expunge-below t]
2298 ["Edit current score file" gnus-score-edit-current-scores t]
59429511 2299 ["Edit score file..." gnus-score-edit-file t]
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2300 ["Trace score" gnus-score-find-trace t]
2301 ["Find words" gnus-score-find-favourite-words t]
2302 ["Rescore buffer" gnus-summary-rescore t]
2303 ["Increase score..." gnus-summary-increase-score t]
2304 ["Lower score..." gnus-summary-lower-score t]))))
2305
2306 ;; Define both the Article menu in the summary buffer and the
2307 ;; equivalent Commands menu in the article buffer here for
2308 ;; consistency.
6748645f 2309 (let ((innards
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2310 `(("Hide"
2311 ["All" gnus-article-hide t]
2312 ["Headers" gnus-article-hide-headers t]
2313 ["Signature" gnus-article-hide-signature t]
2314 ["Citation" gnus-article-hide-citation t]
16409b0b 2315 ["List identifiers" gnus-article-hide-list-identifiers t]
16409b0b 2316 ["Banner" gnus-article-strip-banner t]
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2317 ["Boring headers" gnus-article-hide-boring-headers t])
2318 ("Highlight"
2319 ["All" gnus-article-highlight t]
2320 ["Headers" gnus-article-highlight-headers t]
2321 ["Signature" gnus-article-highlight-signature t]
2322 ["Citation" gnus-article-highlight-citation t])
16409b0b
GM
2323 ("MIME"
2324 ["Words" gnus-article-decode-mime-words t]
2325 ["Charset" gnus-article-decode-charset t]
2326 ["QP" gnus-article-de-quoted-unreadable t]
2327 ["Base64" gnus-article-de-base64-unreadable t]
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2328 ["View MIME buttons" gnus-summary-display-buttonized t]
2329 ["View all" gnus-mime-view-all-parts t]
2330 ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
2331 ["Encrypt body" gnus-article-encrypt-body
2332 :active (not (gnus-group-read-only-p))
2333 ,@(if (featurep 'xemacs) nil
2334 '(:help "Encrypt the message body on disk"))]
2335 ["Extract all parts..." gnus-summary-save-parts t]
2336 ("Multipart"
2337 ["Repair multipart" gnus-summary-repair-multipart t]
2338 ["Pipe part..." gnus-article-pipe-part t]
2339 ["Inline part" gnus-article-inline-part t]
01c52d31 2340 ["View part as type..." gnus-article-view-part-as-type t]
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2341 ["Encrypt body" gnus-article-encrypt-body
2342 :active (not (gnus-group-read-only-p))
2343 ,@(if (featurep 'xemacs) nil
2344 '(:help "Encrypt the message body on disk"))]
2345 ["View part externally" gnus-article-view-part-externally t]
01c52d31 2346 ["View HTML parts in browser" gnus-article-browse-html-article t]
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2347 ["View part with charset..." gnus-article-view-part-as-charset t]
2348 ["Copy part" gnus-article-copy-part t]
2349 ["Save part..." gnus-article-save-part t]
2350 ["View part" gnus-article-view-part t]))
2351 ("Date"
2352 ["Local" gnus-article-date-local t]
2353 ["ISO8601" gnus-article-date-iso8601 t]
2354 ["UT" gnus-article-date-ut t]
2355 ["Original" gnus-article-date-original t]
2356 ["Lapsed" gnus-article-date-lapsed t]
2357 ["User-defined" gnus-article-date-user t])
2358 ("Display"
2359 ["Remove images" gnus-article-remove-images t]
2360 ["Toggle smiley" gnus-treat-smiley t]
2361 ["Show X-Face" gnus-article-display-x-face t]
2362 ["Show picons in From" gnus-treat-from-picon t]
2363 ["Show picons in mail headers" gnus-treat-mail-picon t]
2364 ["Show picons in news headers" gnus-treat-newsgroups-picon t]
2365 ("View as different encoding"
2366 ,@(gnus-summary-menu-split
2367 (mapcar
2368 (lambda (cs)
2369 ;; Since easymenu under Emacs doesn't allow
2370 ;; lambda forms for menu commands, we should
2371 ;; provide intern'ed function symbols.
2372 (let ((command (intern (format "\
2373gnus-summary-show-article-from-menu-as-charset-%s" cs))))
2374 (fset command
2375 `(lambda ()
2376 (interactive)
2377 (let ((gnus-summary-show-article-charset-alist
2378 '((1 . ,cs))))
2379 (gnus-summary-show-article 1))))
2380 `[,(symbol-name cs) ,command t]))
2381 (sort (if (fboundp 'coding-system-list)
2382 (coding-system-list)
2383 (mapcar 'car mm-mime-mule-charset-alist))
2384 'string<)))))
2385 ("Washing"
2386 ("Remove Blanks"
2387 ["Leading" gnus-article-strip-leading-blank-lines t]
2388 ["Multiple" gnus-article-strip-multiple-blank-lines t]
2389 ["Trailing" gnus-article-remove-trailing-blank-lines t]
2390 ["All of the above" gnus-article-strip-blank-lines t]
2391 ["All" gnus-article-strip-all-blank-lines t]
2392 ["Leading space" gnus-article-strip-leading-space t]
2393 ["Trailing space" gnus-article-strip-trailing-space t]
2394 ["Leading space in headers"
2395 gnus-article-remove-leading-whitespace t])
2396 ["Overstrike" gnus-article-treat-overstrike t]
2397 ["Dumb quotes" gnus-article-treat-dumbquotes t]
2398 ["Emphasis" gnus-article-emphasize t]
2399 ["Word wrap" gnus-article-fill-cited-article t]
16409b0b 2400 ["Fill long lines" gnus-article-fill-long-lines t]
01c52d31 2401 ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
16409b0b 2402 ["Capitalize sentences" gnus-article-capitalize-sentences t]
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2403 ["Remove CR" gnus-article-remove-cr t]
2404 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
2405 ["Base64" gnus-article-de-base64-unreadable t]
2406 ["Rot 13" gnus-summary-caesar-message
2407 ,@(if (featurep 'xemacs) '(t)
2408 '(:help "\"Caesar rotate\" article by 13"))]
01c52d31 2409 ["De-IDNA" gnus-summary-idna-message t]
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2410 ["Morse decode" gnus-summary-morse-message t]
2411 ["Unix pipe..." gnus-summary-pipe-message t]
2412 ["Add buttons" gnus-article-add-buttons t]
2413 ["Add buttons to head" gnus-article-add-buttons-to-head t]
2414 ["Stop page breaking" gnus-summary-stop-page-breaking t]
2415 ["Verbose header" gnus-summary-verbose-headers t]
2416 ["Toggle header" gnus-summary-toggle-header t]
2417 ["Unfold headers" gnus-article-treat-unfold-headers t]
2418 ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
16409b0b 2419 ["Html" gnus-article-wash-html t]
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2420 ["Unsplit URLs" gnus-article-unsplit-urls t]
2421 ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
2422 ["Decode HZ" gnus-article-decode-HZ t]
01c52d31 2423 ["ANSI sequences" gnus-article-treat-ansi-sequences t]
23f87bed
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2424 ("(Outlook) Deuglify"
2425 ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
2426 ["Repair attribution" gnus-article-outlook-repair-attribution t]
2427 ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
2428 ["Full (Outlook) deuglify"
2429 gnus-article-outlook-deuglify-article t])
2430 )
2431 ("Output"
2432 ["Save in default format..." gnus-summary-save-article
2433 ,@(if (featurep 'xemacs) '(t)
2434 '(:help "Save article using default method"))]
2435 ["Save in file..." gnus-summary-save-article-file
2436 ,@(if (featurep 'xemacs) '(t)
2437 '(:help "Save article in file"))]
2438 ["Save in Unix mail format..." gnus-summary-save-article-mail t]
2439 ["Save in MH folder..." gnus-summary-save-article-folder t]
2440 ["Save in VM folder..." gnus-summary-save-article-vm t]
2441 ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
2442 ["Save body in file..." gnus-summary-save-article-body-file t]
2443 ["Pipe through a filter..." gnus-summary-pipe-output t]
23f87bed 2444 ["Print with Muttprint..." gnus-summary-muttprint t]
531e5812
MB
2445 ["Print" gnus-summary-print-article
2446 ,@(if (featurep 'xemacs) '(t)
2447 '(:help "Generate and print a PostScript image"))])
2448 ("Copy, move,... (Backend)"
707f2b38 2449 ,@(if (featurep 'xemacs) nil
531e5812 2450 '(:help "Copying, moving, expiring articles..."))
23f87bed
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2451 ["Respool article..." gnus-summary-respool-article t]
2452 ["Move article..." gnus-summary-move-article
2453 (gnus-check-backend-function
2454 'request-move-article gnus-newsgroup-name)]
2455 ["Copy article..." gnus-summary-copy-article t]
2456 ["Crosspost article..." gnus-summary-crosspost-article
2457 (gnus-check-backend-function
2458 'request-replace-article gnus-newsgroup-name)]
2459 ["Import file..." gnus-summary-import-article
2460 (gnus-check-backend-function
2461 'request-accept-article gnus-newsgroup-name)]
2462 ["Create article..." gnus-summary-create-article
2463 (gnus-check-backend-function
2464 'request-accept-article gnus-newsgroup-name)]
2465 ["Check if posted" gnus-summary-article-posted-p t]
2466 ["Edit article" gnus-summary-edit-article
2467 (not (gnus-group-read-only-p))]
2468 ["Delete article" gnus-summary-delete-article
2469 (gnus-check-backend-function
2470 'request-expire-articles gnus-newsgroup-name)]
2471 ["Query respool" gnus-summary-respool-query t]
6748645f 2472 ["Trace respool" gnus-summary-respool-trace t]
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2473 ["Delete expirable articles" gnus-summary-expire-articles-now
2474 (gnus-check-backend-function
2475 'request-expire-articles gnus-newsgroup-name)])
2476 ("Extract"
2477 ["Uudecode" gnus-uu-decode-uu
2478 ,@(if (featurep 'xemacs) '(t)
2479 '(:help "Decode uuencoded article(s)"))]
2480 ["Uudecode and save" gnus-uu-decode-uu-and-save t]
2481 ["Unshar" gnus-uu-decode-unshar t]
2482 ["Unshar and save" gnus-uu-decode-unshar-and-save t]
2483 ["Save" gnus-uu-decode-save t]
2484 ["Binhex" gnus-uu-decode-binhex t]
2485 ["Postscript" gnus-uu-decode-postscript t]
2486 ["All MIME parts" gnus-summary-save-parts t])
2487 ("Cache"
2488 ["Enter article" gnus-cache-enter-article t]
2489 ["Remove article" gnus-cache-remove-article t])
16409b0b 2490 ["Translate" gnus-article-babel t]
23f87bed 2491 ["Select article buffer" gnus-summary-select-article-buffer t]
01c52d31 2492 ["Make article buffer sticky" gnus-sticky-article t]
23f87bed
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2493 ["Enter digest buffer" gnus-summary-enter-digest-group t]
2494 ["Isearch article..." gnus-summary-isearch-article t]
2495 ["Beginning of the article" gnus-summary-beginning-of-article t]
2496 ["End of the article" gnus-summary-end-of-article t]
2497 ["Fetch parent of article" gnus-summary-refer-parent-article t]
2498 ["Fetch referenced articles" gnus-summary-refer-references t]
2499 ["Fetch current thread" gnus-summary-refer-thread t]
2500 ["Fetch article with id..." gnus-summary-refer-article t]
2501 ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
2502 ["Redisplay" gnus-summary-show-article t]
2503 ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
6748645f 2504 (easy-menu-define
23f87bed
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2505 gnus-summary-article-menu gnus-summary-mode-map ""
2506 (cons "Article" innards))
6748645f 2507
1653df0f
SZ
2508 (if (not (keymapp gnus-summary-article-menu))
2509 (easy-menu-define
2510 gnus-article-commands-menu gnus-article-mode-map ""
2511 (cons "Commands" innards))
2512 ;; in Emacs, don't share menu.
a1506d29 2513 (setq gnus-article-commands-menu
1653df0f
SZ
2514 (copy-keymap gnus-summary-article-menu))
2515 (define-key gnus-article-mode-map [menu-bar commands]
2516 (cons "Commands" gnus-article-commands-menu))))
eec82323
LMI
2517
2518 (easy-menu-define
23f87bed
MB
2519 gnus-summary-thread-menu gnus-summary-mode-map ""
2520 '("Threads"
2521 ["Find all messages in thread" gnus-summary-refer-thread t]
2522 ["Toggle threading" gnus-summary-toggle-threads t]
2523 ["Hide threads" gnus-summary-hide-all-threads t]
2524 ["Show threads" gnus-summary-show-all-threads t]
2525 ["Hide thread" gnus-summary-hide-thread t]
2526 ["Show thread" gnus-summary-show-thread t]
2527 ["Go to next thread" gnus-summary-next-thread t]
2528 ["Go to previous thread" gnus-summary-prev-thread t]
2529 ["Go down thread" gnus-summary-down-thread t]
2530 ["Go up thread" gnus-summary-up-thread t]
2531 ["Top of thread" gnus-summary-top-thread t]
2532 ["Mark thread as read" gnus-summary-kill-thread t]
01c52d31 2533 ["Mark thread as expired" gnus-summary-expire-thread t]
23f87bed
MB
2534 ["Lower thread score" gnus-summary-lower-thread t]
2535 ["Raise thread score" gnus-summary-raise-thread t]
2536 ["Rethread current" gnus-summary-rethread-current t]))
eec82323
LMI
2537
2538 (easy-menu-define
23f87bed
MB
2539 gnus-summary-post-menu gnus-summary-mode-map ""
2540 `("Post"
2541 ["Send a message (mail or news)" gnus-summary-post-news
2542 ,@(if (featurep 'xemacs) '(t)
531e5812 2543 '(:help "Compose a new message (mail or news)"))]
23f87bed
MB
2544 ["Followup" gnus-summary-followup
2545 ,@(if (featurep 'xemacs) '(t)
2546 '(:help "Post followup to this article"))]
2547 ["Followup and yank" gnus-summary-followup-with-original
2548 ,@(if (featurep 'xemacs) '(t)
2549 '(:help "Post followup to this article, quoting its contents"))]
2550 ["Supersede article" gnus-summary-supersede-article t]
2551 ["Cancel article" gnus-summary-cancel-article
2552 ,@(if (featurep 'xemacs) '(t)
2553 '(:help "Cancel an article you posted"))]
2554 ["Reply" gnus-summary-reply t]
2555 ["Reply and yank" gnus-summary-reply-with-original t]
2556 ["Wide reply" gnus-summary-wide-reply t]
2557 ["Wide reply and yank" gnus-summary-wide-reply-with-original
2558 ,@(if (featurep 'xemacs) '(t)
2559 '(:help "Mail a reply, quoting this article"))]
2560 ["Very wide reply" gnus-summary-very-wide-reply t]
2561 ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
2562 ,@(if (featurep 'xemacs) '(t)
2563 '(:help "Mail a very wide reply, quoting this article"))]
2564 ["Mail forward" gnus-summary-mail-forward t]
2565 ["Post forward" gnus-summary-post-forward t]
2566 ["Digest and mail" gnus-uu-digest-mail-forward t]
2567 ["Digest and post" gnus-uu-digest-post-forward t]
2568 ["Resend message" gnus-summary-resend-message t]
2569 ["Resend message edit" gnus-summary-resend-message-edit t]
2570 ["Send bounced mail" gnus-summary-resend-bounced-mail t]
2571 ["Send a mail" gnus-summary-mail-other-window t]
2572 ["Create a local message" gnus-summary-news-other-window t]
2573 ["Uuencode and post" gnus-uu-post-news
2574 ,@(if (featurep 'xemacs) '(t)
2575 '(:help "Post a uuencoded article"))]
2576 ["Followup via news" gnus-summary-followup-to-mail t]
2577 ["Followup via news and yank"
2578 gnus-summary-followup-to-mail-with-original t]
9b3ebcb6
MB
2579 ["Strip signature on reply"
2580 (lambda ()
2581 (interactive)
2582 (if (not (memq message-cite-function
2583 '(message-cite-original-without-signature
2584 message-cite-original)))
2585 ;; Stupid workaround for XEmacs not honoring :visible.
2586 (message "Can't toggle this value of `message-cite-function'")
2587 (setq message-cite-function
2588 (if (eq message-cite-function
2589 'message-cite-original-without-signature)
2590 'message-cite-original
2591 'message-cite-original-without-signature))))
2592 ;; XEmacs barfs on :visible.
2593 ,@(if (featurep 'xemacs) nil
2594 '(:visible (memq message-cite-function
2595 '(message-cite-original-without-signature
2596 message-cite-original))))
2597 :style toggle
2598 :selected (eq message-cite-function
2599 'message-cite-original-without-signature)
2600 ,@(if (featurep 'xemacs) nil
2601 '(:help "Strip signature from cited article when replying."))]
23f87bed
MB
2602 ;;("Draft"
2603 ;;["Send" gnus-summary-send-draft t]
2604 ;;["Send bounced" gnus-resend-bounced-mail t])
2605 ))
2606
2607 (cond
2608 ((not (keymapp gnus-summary-post-menu))
2609 (setq gnus-article-post-menu gnus-summary-post-menu))
2610 ((not gnus-article-post-menu)
2611 ;; Don't share post menu.
2612 (setq gnus-article-post-menu
2613 (copy-keymap gnus-summary-post-menu))))
2614 (define-key gnus-article-mode-map [menu-bar post]
2615 (cons "Post" gnus-article-post-menu))
eec82323
LMI
2616
2617 (easy-menu-define
23f87bed
MB
2618 gnus-summary-misc-menu gnus-summary-mode-map ""
2619 `("Gnus"
2620 ("Mark Read"
2621 ["Mark as read" gnus-summary-mark-as-read-forward t]
2622 ["Mark same subject and select"
2623 gnus-summary-kill-same-subject-and-select t]
2624 ["Mark same subject" gnus-summary-kill-same-subject t]
2625 ["Catchup" gnus-summary-catchup
2626 ,@(if (featurep 'xemacs) '(t)
2627 '(:help "Mark unread articles in this group as read"))]
2628 ["Catchup all" gnus-summary-catchup-all t]
2629 ["Catchup to here" gnus-summary-catchup-to-here t]
2630 ["Catchup from here" gnus-summary-catchup-from-here t]
2631 ["Catchup region" gnus-summary-mark-region-as-read
2632 (gnus-mark-active-p)]
2633 ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
2634 ("Mark Various"
2635 ["Tick" gnus-summary-tick-article-forward t]
2636 ["Mark as dormant" gnus-summary-mark-as-dormant t]
2637 ["Remove marks" gnus-summary-clear-mark-forward t]
2638 ["Set expirable mark" gnus-summary-mark-as-expirable t]
2639 ["Set bookmark" gnus-summary-set-bookmark t]
2640 ["Remove bookmark" gnus-summary-remove-bookmark t])
2641 ("Limit to"
2642 ["Marks..." gnus-summary-limit-to-marks t]
2643 ["Subject..." gnus-summary-limit-to-subject t]
2644 ["Author..." gnus-summary-limit-to-author t]
01c52d31
MB
2645 ["Recipient..." gnus-summary-limit-to-recipient t]
2646 ["Address..." gnus-summary-limit-to-address t]
23f87bed
MB
2647 ["Age..." gnus-summary-limit-to-age t]
2648 ["Extra..." gnus-summary-limit-to-extra t]
2649 ["Score..." gnus-summary-limit-to-score t]
2650 ["Display Predicate" gnus-summary-limit-to-display-predicate t]
2651 ["Unread" gnus-summary-limit-to-unread t]
2652 ["Unseen" gnus-summary-limit-to-unseen t]
01c52d31
MB
2653 ["Singletons" gnus-summary-limit-to-singletons t]
2654 ["Replied" gnus-summary-limit-to-replied t]
23f87bed 2655 ["Non-dormant" gnus-summary-limit-exclude-dormant t]
996aa8c1 2656 ["Next or process marked articles" gnus-summary-limit-to-articles t]
23f87bed
MB
2657 ["Pop limit" gnus-summary-pop-limit t]
2658 ["Show dormant" gnus-summary-limit-include-dormant t]
2659 ["Hide childless dormant"
2660 gnus-summary-limit-exclude-childless-dormant t]
2661 ;;["Hide thread" gnus-summary-limit-exclude-thread t]
2662 ["Hide marked" gnus-summary-limit-exclude-marks t]
2663 ["Show expunged" gnus-summary-limit-include-expunged t])
2664 ("Process Mark"
2665 ["Set mark" gnus-summary-mark-as-processable t]
2666 ["Remove mark" gnus-summary-unmark-as-processable t]
2667 ["Remove all marks" gnus-summary-unmark-all-processable t]
01c52d31 2668 ["Invert marks" gnus-uu-invert-processable t]
23f87bed
MB
2669 ["Mark above" gnus-uu-mark-over t]
2670 ["Mark series" gnus-uu-mark-series t]
2671 ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
2672 ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
2673 ["Mark by regexp..." gnus-uu-mark-by-regexp t]
2674 ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
2675 ["Mark all" gnus-uu-mark-all t]
2676 ["Mark buffer" gnus-uu-mark-buffer t]
2677 ["Mark sparse" gnus-uu-mark-sparse t]
2678 ["Mark thread" gnus-uu-mark-thread t]
2679 ["Unmark thread" gnus-uu-unmark-thread t]
2680 ("Process Mark Sets"
2681 ["Kill" gnus-summary-kill-process-mark t]
2682 ["Yank" gnus-summary-yank-process-mark
2683 gnus-newsgroup-process-stack]
2684 ["Save" gnus-summary-save-process-mark t]
2685 ["Run command on marked..." gnus-summary-universal-argument t]))
ec7995fa 2686 ("Registry Marks")
23f87bed
MB
2687 ("Scroll article"
2688 ["Page forward" gnus-summary-next-page
2689 ,@(if (featurep 'xemacs) '(t)
2690 '(:help "Show next page of article"))]
2691 ["Page backward" gnus-summary-prev-page
2692 ,@(if (featurep 'xemacs) '(t)
2693 '(:help "Show previous page of article"))]
2694 ["Line forward" gnus-summary-scroll-up t])
2695 ("Move"
2696 ["Next unread article" gnus-summary-next-unread-article t]
2697 ["Previous unread article" gnus-summary-prev-unread-article t]
2698 ["Next article" gnus-summary-next-article t]
2699 ["Previous article" gnus-summary-prev-article t]
2700 ["Next unread subject" gnus-summary-next-unread-subject t]
2701 ["Previous unread subject" gnus-summary-prev-unread-subject t]
2702 ["Next article same subject" gnus-summary-next-same-subject t]
2703 ["Previous article same subject" gnus-summary-prev-same-subject t]
2704 ["First unread article" gnus-summary-first-unread-article t]
2705 ["Best unread article" gnus-summary-best-unread-article t]
2706 ["Go to subject number..." gnus-summary-goto-subject t]
2707 ["Go to article number..." gnus-summary-goto-article t]
2708 ["Go to the last article" gnus-summary-goto-last-article t]
2709 ["Pop article off history" gnus-summary-pop-article t])
2710 ("Sort"
2711 ["Sort by number" gnus-summary-sort-by-number t]
6ecfe5c2 2712 ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
23f87bed 2713 ["Sort by author" gnus-summary-sort-by-author t]
01c52d31 2714 ["Sort by recipient" gnus-summary-sort-by-recipient t]
23f87bed
MB
2715 ["Sort by subject" gnus-summary-sort-by-subject t]
2716 ["Sort by date" gnus-summary-sort-by-date t]
6ecfe5c2 2717 ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
23f87bed
MB
2718 ["Sort by score" gnus-summary-sort-by-score t]
2719 ["Sort by lines" gnus-summary-sort-by-lines t]
2720 ["Sort by characters" gnus-summary-sort-by-chars t]
2721 ["Randomize" gnus-summary-sort-by-random t]
2722 ["Original sort" gnus-summary-sort-by-original t])
2723 ("Help"
2724 ["Fetch group FAQ" gnus-summary-fetch-faq t]
2725 ["Describe group" gnus-summary-describe-group t]
2726 ["Fetch charter" gnus-group-fetch-charter
2727 ,@(if (featurep 'xemacs) nil
2728 '(:help "Display the charter of the current group"))]
2729 ["Fetch control message" gnus-group-fetch-control
2730 ,@(if (featurep 'xemacs) nil
2731 '(:help "Display the archived control message for the current group"))]
2732 ["Read manual" gnus-info-find-node t])
2733 ("Modes"
2734 ["Pick and read" gnus-pick-mode t]
2735 ["Binary" gnus-binary-mode t])
2736 ("Regeneration"
2737 ["Regenerate" gnus-summary-prepare t]
2738 ["Insert cached articles" gnus-summary-insert-cached-articles t]
2739 ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
01c52d31 2740 ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
23f87bed
MB
2741 ["Toggle threading" gnus-summary-toggle-threads t])
2742 ["See old articles" gnus-summary-insert-old-articles t]
2743 ["See new articles" gnus-summary-insert-new-articles t]
2744 ["Filter articles..." gnus-summary-execute-command t]
2745 ["Run command on articles..." gnus-summary-universal-argument t]
2746 ["Search articles forward..." gnus-summary-search-article-forward t]
2747 ["Search articles backward..." gnus-summary-search-article-backward t]
2748 ["Toggle line truncation" gnus-summary-toggle-truncation t]
2749 ["Expand window" gnus-summary-expand-window t]
2750 ["Expire expirable articles" gnus-summary-expire-articles
2751 (gnus-check-backend-function
2752 'request-expire-articles gnus-newsgroup-name)]
2753 ["Edit local kill file" gnus-summary-edit-local-kill t]
2754 ["Edit main kill file" gnus-summary-edit-global-kill t]
2755 ["Edit group parameters" gnus-summary-edit-parameters t]
2756 ["Customize group parameters" gnus-summary-customize-parameters t]
2757 ["Send a bug report" gnus-bug t]
2758 ("Exit"
2759 ["Catchup and exit" gnus-summary-catchup-and-exit
2760 ,@(if (featurep 'xemacs) '(t)
2761 '(:help "Mark unread articles in this group as read, then exit"))]
2762 ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
2763 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
01c52d31 2764 ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
23f87bed
MB
2765 ["Exit group" gnus-summary-exit
2766 ,@(if (featurep 'xemacs) '(t)
2767 '(:help "Exit current group, return to group selection mode"))]
2768 ["Exit group without updating" gnus-summary-exit-no-update t]
2769 ["Exit and goto next group" gnus-summary-next-group t]
2770 ["Exit and goto prev group" gnus-summary-prev-group t]
2771 ["Reselect group" gnus-summary-reselect-current-group t]
2772 ["Rescan group" gnus-summary-rescan-group t]
2773 ["Update dribble" gnus-summary-save-newsrc t])))
eec82323 2774
6748645f 2775 (gnus-run-hooks 'gnus-summary-menu-hook)))
eec82323 2776
60bd5589
DL
2777(defvar gnus-summary-tool-bar-map nil)
2778
18c06a99
RS
2779;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
2780;; affect _new_ message buffers. We might add a function that walks thru all
2781;; summary-mode buffers and force the update.
2782(defun gnus-summary-tool-bar-update (&optional symbol value)
2783 "Update summary mode toolbar.
2784Setter function for custom variables."
2785 (setq-default gnus-summary-tool-bar-map nil)
2786 (when symbol
2787 ;; When used as ":set" function:
2788 (set-default symbol value))
2789 (when (gnus-buffer-live-p gnus-summary-buffer)
2790 (with-current-buffer gnus-summary-buffer
2791 (gnus-summary-make-tool-bar))))
2792
2793(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
2794 'gnus-summary-tool-bar-gnome
2795 'gnus-summary-tool-bar-retro)
2796 "Specifies the Gnus summary tool bar.
2797
2798It can be either a list or a symbol refering to a list. See
2799`gmm-tool-bar-from-list' for the format of the list. The
2800default key map is `gnus-summary-mode-map'.
2801
2802Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
2803`gnus-summary-tool-bar-retro'."
2804 :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
2805 (const :tag "Retro look" gnus-summary-tool-bar-retro)
2806 (repeat :tag "User defined list" gmm-tool-bar-item)
2807 (symbol))
330f707b 2808 :version "23.1" ;; No Gnus
18c06a99
RS
2809 :initialize 'custom-initialize-default
2810 :set 'gnus-summary-tool-bar-update
2811 :group 'gnus-summary)
2812
2813(defcustom gnus-summary-tool-bar-gnome
2814 '((gnus-summary-post-news "mail/compose" nil)
2815 (gnus-summary-insert-new-articles "mail/inbox" nil
2816 :visible (or (not gnus-agent)
2817 gnus-plugged))
2818 (gnus-summary-reply-with-original "mail/reply")
2819 (gnus-summary-reply "mail/reply" nil :visible nil)
2820 (gnus-summary-followup-with-original "mail/reply-all")
2821 (gnus-summary-followup "mail/reply-all" nil :visible nil)
2822 (gnus-summary-mail-forward "mail/forward")
2823 (gnus-summary-save-article "mail/save")
2824 (gnus-summary-search-article-forward "search" nil :visible nil)
2825 (gnus-summary-print-article "print")
2826 (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
2827 ;; Some new commands that may need more suitable icons:
2828 (gnus-summary-save-newsrc "save" nil :visible nil)
2829 ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
2830 (gnus-summary-prev-article "left-arrow")
2831 (gnus-summary-next-article "right-arrow")
2832 (gnus-summary-next-page "next-page")
2833 ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
2834 ;;
2835 ;; Maybe some sort-by-... could be added:
2836 ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
2837 ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
2838 (gnus-summary-mark-as-expirable
2839 "delete" nil
2840 :visible (gnus-check-backend-function 'request-expire-articles
2841 gnus-newsgroup-name))
2842 (gnus-summary-mark-as-spam
2843 "mail/spam" t
2844 :visible (and (fboundp 'spam-group-ham-contents-p)
2845 (spam-group-ham-contents-p gnus-newsgroup-name))
2846 :help "Mark as spam")
2847 (gnus-summary-mark-as-read-forward
2848 "mail/not-spam" nil
2849 :visible (and (fboundp 'spam-group-spam-contents-p)
2850 (spam-group-spam-contents-p gnus-newsgroup-name)))
2851 ;;
2852 (gnus-summary-exit "exit")
2853 (gmm-customize-mode "preferences" t :help "Edit mode preferences")
2854 (gnus-info-find-node "help"))
2855 "List of functions for the summary tool bar (GNOME style).
2856
2857See `gmm-tool-bar-from-list' for the format of the list."
2858 :type '(repeat gmm-tool-bar-item)
330f707b 2859 :version "23.1" ;; No Gnus
18c06a99
RS
2860 :initialize 'custom-initialize-default
2861 :set 'gnus-summary-tool-bar-update
2862 :group 'gnus-summary)
2863
2864(defcustom gnus-summary-tool-bar-retro
2865 '((gnus-summary-prev-unread-article "gnus/prev-ur")
2866 (gnus-summary-next-unread-article "gnus/next-ur")
2867 (gnus-summary-post-news "gnus/post")
2868 (gnus-summary-followup-with-original "gnus/fuwo")
2869 (gnus-summary-followup "gnus/followup")
2870 (gnus-summary-reply-with-original "gnus/reply-wo")
2871 (gnus-summary-reply "gnus/reply")
2872 (gnus-summary-caesar-message "gnus/rot13")
2873 (gnus-uu-decode-uu "gnus/uu-decode")
2874 (gnus-summary-save-article-file "gnus/save-aif")
2875 (gnus-summary-save-article "gnus/save-art")
2876 (gnus-uu-post-news "gnus/uu-post")
2877 (gnus-summary-catchup "gnus/catchup")
2878 (gnus-summary-catchup-and-exit "gnus/cu-exit")
2879 (gnus-summary-exit "gnus/exit-summ")
2880 ;; Some new command that may need more suitable icons:
2881 (gnus-summary-print-article "gnus/print" nil :visible nil)
2882 (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
2883 (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
2884 ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
2885 (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
2886 ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
2887 ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
2888 ;;
2889 (gnus-info-find-node "gnus/help" nil :visible nil))
2890 "List of functions for the summary tool bar (retro look).
2891
2892See `gmm-tool-bar-from-list' for the format of the list."
2893 :type '(repeat gmm-tool-bar-item)
330f707b 2894 :version "23.1" ;; No Gnus
18c06a99
RS
2895 :initialize 'custom-initialize-default
2896 :set 'gnus-summary-tool-bar-update
2897 :group 'gnus-summary)
2898
2899(defcustom gnus-summary-tool-bar-zap-list t
2900 "List of icon items from the global tool bar.
2901These items are not displayed in the Gnus summary mode tool bar.
2902
2903See `gmm-tool-bar-from-list' for the format of the list."
2904 :type 'gmm-tool-bar-zap-list
330f707b 2905 :version "23.1" ;; No Gnus
18c06a99
RS
2906 :initialize 'custom-initialize-default
2907 :set 'gnus-summary-tool-bar-update
2908 :group 'gnus-summary)
2909
2910(defvar image-load-path)
f654fa04 2911(defvar tool-bar-map)
18c06a99
RS
2912
2913(defun gnus-summary-make-tool-bar (&optional force)
2914 "Make a summary mode tool bar from `gnus-summary-tool-bar'.
2915When FORCE, rebuild the tool bar."
2916 (when (and (not (featurep 'xemacs))
2917 (boundp 'tool-bar-mode)
2918 tool-bar-mode
2919 (or (not gnus-summary-tool-bar-map) force))
2920 (let* ((load-path
2921 (gmm-image-load-path-for-library "gnus"
2922 "mail/save.xpm"
2923 nil t))
2924 (image-load-path (cons (car load-path)
2925 (when (boundp 'image-load-path)
2926 image-load-path)))
2927 (map (gmm-tool-bar-from-list gnus-summary-tool-bar
2928 gnus-summary-tool-bar-zap-list
2929 'gnus-summary-mode-map)))
2930 (when map
2931 ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
2932 ;; uses it's value.
2933 (setq gnus-summary-tool-bar-map map))))
2934 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
60bd5589 2935
eec82323
LMI
2936(defun gnus-score-set-default (var value)
2937 "A version of set that updates the GNU Emacs menu-bar."
2938 (set var value)
2939 ;; It is the message that forces the active status to be updated.
2940 (message ""))
2941
2942(defun gnus-make-score-map (type)
2943 "Make a summary score map of type TYPE."
2944 (if t
2945 nil
2946 (let ((headers '(("author" "from" string)
2947 ("subject" "subject" string)
2948 ("article body" "body" string)
2949 ("article head" "head" string)
2950 ("xref" "xref" string)
16409b0b 2951 ("extra header" "extra" string)
eec82323
LMI
2952 ("lines" "lines" number)
2953 ("followups to author" "followup" string)))
2954 (types '((number ("less than" <)
2955 ("greater than" >)
2956 ("equal" =))
2957 (string ("substring" s)
2958 ("exact string" e)
2959 ("fuzzy string" f)
2960 ("regexp" r))))
2961 (perms '(("temporary" (current-time-string))
2962 ("permanent" nil)
2963 ("immediate" now)))
2964 header)
2965 (list
2966 (apply
2967 'nconc
2968 (list
2969 (if (eq type 'lower)
2970 "Lower score"
2971 "Increase score"))
2972 (let (outh)
2973 (while headers
2974 (setq header (car headers))
2975 (setq outh
2976 (cons
2977 (apply
2978 'nconc
2979 (list (car header))
2980 (let ((ts (cdr (assoc (nth 2 header) types)))
2981 outt)
2982 (while ts
2983 (setq outt
2984 (cons
2985 (apply
2986 'nconc
2987 (list (caar ts))
2988 (let ((ps perms)
2989 outp)
2990 (while ps
2991 (setq outp
2992 (cons
2993 (vector
2994 (caar ps)
2995 (list
2996 'gnus-summary-score-entry
2997 (nth 1 header)
2998 (if (or (string= (nth 1 header)
2999 "head")
3000 (string= (nth 1 header)
3001 "body"))
3002 ""
3003 (list 'gnus-summary-header
3004 (nth 1 header)))
3005 (list 'quote (nth 1 (car ts)))
16409b0b
GM
3006 (list 'gnus-score-delta-default
3007 nil)
eec82323
LMI
3008 (nth 1 (car ps))
3009 t)
3010 t)
3011 outp))
3012 (setq ps (cdr ps)))
3013 (list (nreverse outp))))
3014 outt))
3015 (setq ts (cdr ts)))
3016 (list (nreverse outt))))
3017 outh))
3018 (setq headers (cdr headers)))
3019 (list (nreverse outh))))))))
3020
704f1663
GM
3021
3022(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
398a825b 3023(defvar bookmark-make-record-function)
eec82323
LMI
3024\f
3025
3026(defun gnus-summary-mode (&optional group)
3027 "Major mode for reading articles.
3028
3029All normal editing commands are switched off.
3030\\<gnus-summary-mode-map>
3031Each line in this buffer represents one article. To read an
3032article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
3033and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
3034respectively.
3035
3036You can also post articles and send mail from this buffer. To
23f87bed 3037follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
eec82323
LMI
3038of an article, type `\\[gnus-summary-reply]'.
3039
3040There are approx. one gazillion commands you can execute in this
3041buffer; read the info pages for more information (`\\[gnus-info-find-node]').
3042
3043The following commands are available:
3044
3045\\{gnus-summary-mode-map}"
3046 (interactive)
eec82323 3047 (kill-all-local-variables)
01c52d31
MB
3048 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
3049 (gnus-summary-make-local-variables))
3050 (gnus-summary-make-local-variables)
3051 (setq gnus-newsgroup-name group)
60bd5589
DL
3052 (when (gnus-visual-p 'summary-menu 'menu)
3053 (gnus-summary-make-menu-bar)
3054 (gnus-summary-make-tool-bar))
eec82323
LMI
3055 (gnus-make-thread-indent-array)
3056 (gnus-simplify-mode-line)
3057 (setq major-mode 'gnus-summary-mode)
3058 (setq mode-name "Summary")
eec82323 3059 (use-local-map gnus-summary-mode-map)
16409b0b 3060 (buffer-disable-undo)
01c52d31
MB
3061 (setq buffer-read-only t ;Disable modification
3062 show-trailing-whitespace nil)
eec82323 3063 (setq truncate-lines t)
9bfd9a76 3064 (add-to-invisibility-spec '(gnus-sum . t))
eec82323
LMI
3065 (gnus-summary-set-display-table)
3066 (gnus-set-default-directory)
eec82323
LMI
3067 (make-local-variable 'gnus-summary-line-format)
3068 (make-local-variable 'gnus-summary-line-format-spec)
6748645f
LMI
3069 (make-local-variable 'gnus-summary-dummy-line-format)
3070 (make-local-variable 'gnus-summary-dummy-line-format-spec)
eec82323 3071 (make-local-variable 'gnus-summary-mark-positions)
23f87bed 3072 (gnus-make-local-hook 'pre-command-hook)
6748645f 3073 (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
cfcd5c91 3074 (gnus-run-mode-hooks 'gnus-summary-mode-hook)
23f87bed 3075 (turn-on-gnus-mailing-list-mode)
87545352 3076 (mm-enable-multibyte)
45be326a
TV
3077 (set (make-local-variable 'bookmark-make-record-function)
3078 'gnus-summary-bookmark-make-record)
eec82323
LMI
3079 (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
3080 (gnus-update-summary-mark-positions))
3081
3082(defun gnus-summary-make-local-variables ()
3083 "Make all the local summary buffer variables."
16409b0b
GM
3084 (let (global)
3085 (dolist (local gnus-summary-local-variables)
eec82323
LMI
3086 (if (consp local)
3087 (progn
3088 (if (eq (cdr local) 'global)
3089 ;; Copy the global value of the variable.
3090 (setq global (symbol-value (car local)))
3091 ;; Use the value from the list.
3092 (setq global (eval (cdr local))))
16409b0b 3093 (set (make-local-variable (car local)) global))
eec82323 3094 ;; Simple nil-valued local variable.
16409b0b 3095 (set (make-local-variable local) nil)))))
eec82323
LMI
3096
3097(defun gnus-summary-clear-local-variables ()
3098 (let ((locals gnus-summary-local-variables))
3099 (while locals
3100 (if (consp (car locals))
01c52d31 3101 (and (symbolp (caar locals))
eec82323 3102 (set (caar locals) nil))
01c52d31 3103 (and (symbolp (car locals))
eec82323
LMI
3104 (set (car locals) nil)))
3105 (setq locals (cdr locals)))))
3106
3107;; Summary data functions.
3108
3109(defmacro gnus-data-number (data)
3110 `(car ,data))
3111
3112(defmacro gnus-data-set-number (data number)
3113 `(setcar ,data ,number))
3114
3115(defmacro gnus-data-mark (data)
3116 `(nth 1 ,data))
3117
3118(defmacro gnus-data-set-mark (data mark)
3119 `(setcar (nthcdr 1 ,data) ,mark))
3120
3121(defmacro gnus-data-pos (data)
3122 `(nth 2 ,data))
3123
3124(defmacro gnus-data-set-pos (data pos)
3125 `(setcar (nthcdr 2 ,data) ,pos))
3126
3127(defmacro gnus-data-header (data)
3128 `(nth 3 ,data))
3129
3130(defmacro gnus-data-set-header (data header)
3131 `(setf (nth 3 ,data) ,header))
3132
3133(defmacro gnus-data-level (data)
3134 `(nth 4 ,data))
3135
3136(defmacro gnus-data-unread-p (data)
3137 `(= (nth 1 ,data) gnus-unread-mark))
3138
3139(defmacro gnus-data-read-p (data)
3140 `(/= (nth 1 ,data) gnus-unread-mark))
3141
3142(defmacro gnus-data-pseudo-p (data)
3143 `(consp (nth 3 ,data)))
3144
3145(defmacro gnus-data-find (number)
3146 `(assq ,number gnus-newsgroup-data))
3147
3148(defmacro gnus-data-find-list (number &optional data)
3149 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
3150 (memq (assq ,number bdata)
3151 bdata)))
3152
3153(defmacro gnus-data-make (number mark pos header level)
3154 `(list ,number ,mark ,pos ,header ,level))
3155
3156(defun gnus-data-enter (after-article number mark pos header level offset)
3157 (let ((data (gnus-data-find-list after-article)))
3158 (unless data
3159 (error "No such article: %d" after-article))
3160 (setcdr data (cons (gnus-data-make number mark pos header level)
3161 (cdr data)))
3162 (setq gnus-newsgroup-data-reverse nil)
3163 (gnus-data-update-list (cddr data) offset)))
3164
3165(defun gnus-data-enter-list (after-article list &optional offset)
3166 (when list
3167 (let ((data (and after-article (gnus-data-find-list after-article)))
3168 (ilist list))
6748645f
LMI
3169 (if (not (or data
3170 after-article))
3171 (let ((odata gnus-newsgroup-data))
3172 (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
eec82323 3173 (when offset
6748645f 3174 (gnus-data-update-list odata offset)))
01c52d31 3175 ;; Find the last element in the list to be spliced into the main
6748645f 3176 ;; list.
01c52d31 3177 (setq list (last list))
6748645f
LMI
3178 (if (not data)
3179 (progn
3180 (setcdr list gnus-newsgroup-data)
3181 (setq gnus-newsgroup-data ilist)
3182 (when offset
3183 (gnus-data-update-list (cdr list) offset)))
3184 (setcdr list (cdr data))
3185 (setcdr data ilist)
3186 (when offset
3187 (gnus-data-update-list (cdr list) offset))))
eec82323
LMI
3188 (setq gnus-newsgroup-data-reverse nil))))
3189
3190(defun gnus-data-remove (article &optional offset)
3191 (let ((data gnus-newsgroup-data))
3192 (if (= (gnus-data-number (car data)) article)
3193 (progn
3194 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
3195 gnus-newsgroup-data-reverse nil)
3196 (when offset
3197 (gnus-data-update-list gnus-newsgroup-data offset)))
3198 (while (cdr data)
3199 (when (= (gnus-data-number (cadr data)) article)
3200 (setcdr data (cddr data))
3201 (when offset
3202 (gnus-data-update-list (cdr data) offset))
3203 (setq data nil
3204 gnus-newsgroup-data-reverse nil))
3205 (setq data (cdr data))))))
3206
3207(defmacro gnus-data-list (backward)
3208 `(if ,backward
3209 (or gnus-newsgroup-data-reverse
3210 (setq gnus-newsgroup-data-reverse
3211 (reverse gnus-newsgroup-data)))
3212 gnus-newsgroup-data))
3213
3214(defun gnus-data-update-list (data offset)
3215 "Add OFFSET to the POS of all data entries in DATA."
6748645f 3216 (setq gnus-newsgroup-data-reverse nil)
eec82323
LMI
3217 (while data
3218 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
3219 (setq data (cdr data))))
3220
eec82323
LMI
3221(defun gnus-summary-article-pseudo-p (article)
3222 "Say whether this article is a pseudo article or not."
3223 (not (vectorp (gnus-data-header (gnus-data-find article)))))
3224
3225(defmacro gnus-summary-article-sparse-p (article)
3226 "Say whether this article is a sparse article or not."
a8151ef7 3227 `(memq ,article gnus-newsgroup-sparse))
eec82323
LMI
3228
3229(defmacro gnus-summary-article-ancient-p (article)
3230 "Say whether this article is a sparse article or not."
3231 `(memq ,article gnus-newsgroup-ancient))
3232
3233(defun gnus-article-parent-p (number)
3234 "Say whether this article is a parent or not."
3235 (let ((data (gnus-data-find-list number)))
23f87bed 3236 (and (cdr data) ; There has to be an article after...
eec82323
LMI
3237 (< (gnus-data-level (car data)) ; And it has to have a higher level.
3238 (gnus-data-level (nth 1 data))))))
3239
3240(defun gnus-article-children (number)
3241 "Return a list of all children to NUMBER."
3242 (let* ((data (gnus-data-find-list number))
3243 (level (gnus-data-level (car data)))
3244 children)
3245 (setq data (cdr data))
3246 (while (and data
3247 (= (gnus-data-level (car data)) (1+ level)))
3248 (push (gnus-data-number (car data)) children)
3249 (setq data (cdr data)))
3250 children))
3251
3252(defmacro gnus-summary-skip-intangible ()
3253 "If the current article is intangible, then jump to a different article."
3254 '(let ((to (get-text-property (point) 'gnus-intangible)))
3255 (and to (gnus-summary-goto-subject to))))
3256
3257(defmacro gnus-summary-article-intangible-p ()
3258 "Say whether this article is intangible or not."
3259 '(get-text-property (point) 'gnus-intangible))
3260
3261(defun gnus-article-read-p (article)
3262 "Say whether ARTICLE is read or not."
3263 (not (or (memq article gnus-newsgroup-marked)
23f87bed 3264 (memq article gnus-newsgroup-spam-marked)
eec82323
LMI
3265 (memq article gnus-newsgroup-unreads)
3266 (memq article gnus-newsgroup-unselected)
3267 (memq article gnus-newsgroup-dormant))))
3268
3269;; Some summary mode macros.
3270
3271(defmacro gnus-summary-article-number ()
3272 "The article number of the article on the current line.
8f688cb0 3273If there isn't an article number here, then we return the current
eec82323
LMI
3274article number."
3275 '(progn
3276 (gnus-summary-skip-intangible)
3277 (or (get-text-property (point) 'gnus-number)
3278 (gnus-summary-last-subject))))
3279
3280(defmacro gnus-summary-article-header (&optional number)
6748645f 3281 "Return the header of article NUMBER."
eec82323
LMI
3282 `(gnus-data-header (gnus-data-find
3283 ,(or number '(gnus-summary-article-number)))))
3284
3285(defmacro gnus-summary-thread-level (&optional number)
6748645f 3286 "Return the level of thread that starts with article NUMBER."
eec82323
LMI
3287 `(if (and (eq gnus-summary-make-false-root 'dummy)
3288 (get-text-property (point) 'gnus-intangible))
3289 0
3290 (gnus-data-level (gnus-data-find
3291 ,(or number '(gnus-summary-article-number))))))
3292
3293(defmacro gnus-summary-article-mark (&optional number)
6748645f 3294 "Return the mark of article NUMBER."
eec82323
LMI
3295 `(gnus-data-mark (gnus-data-find
3296 ,(or number '(gnus-summary-article-number)))))
3297
3298(defmacro gnus-summary-article-pos (&optional number)
6748645f 3299 "Return the position of the line of article NUMBER."
eec82323
LMI
3300 `(gnus-data-pos (gnus-data-find
3301 ,(or number '(gnus-summary-article-number)))))
3302
3303(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
3304(defmacro gnus-summary-article-subject (&optional number)
3305 "Return current subject string or nil if nothing."
3306 `(let ((headers
3307 ,(if number
3308 `(gnus-data-header (assq ,number gnus-newsgroup-data))
3309 '(gnus-data-header (assq (gnus-summary-article-number)
3310 gnus-newsgroup-data)))))
3311 (and headers
3312 (vectorp headers)
3313 (mail-header-subject headers))))
3314
3315(defmacro gnus-summary-article-score (&optional number)
3316 "Return current article score."
3317 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
3318 gnus-newsgroup-scored))
3319 gnus-summary-default-score 0))
3320
3321(defun gnus-summary-article-children (&optional number)
6748645f 3322 "Return a list of article numbers that are children of article NUMBER."
eec82323
LMI
3323 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
3324 (level (gnus-data-level (car data)))
3325 l children)
3326 (while (and (setq data (cdr data))
3327 (> (setq l (gnus-data-level (car data))) level))
3328 (and (= (1+ level) l)
3329 (push (gnus-data-number (car data))
3330 children)))
3331 (nreverse children)))
3332
3333(defun gnus-summary-article-parent (&optional number)
6748645f 3334 "Return the article number of the parent of article NUMBER."
eec82323
LMI
3335 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
3336 (gnus-data-list t)))
3337 (level (gnus-data-level (car data))))
3338 (if (zerop level)
3339 () ; This is a root.
3340 ;; We search until we find an article with a level less than
3341 ;; this one. That function has to be the parent.
3342 (while (and (setq data (cdr data))
3343 (not (< (gnus-data-level (car data)) level))))
3344 (and data (gnus-data-number (car data))))))
3345
3346(defun gnus-unread-mark-p (mark)
3347 "Say whether MARK is the unread mark."
3348 (= mark gnus-unread-mark))
3349
3350(defun gnus-read-mark-p (mark)
3351 "Say whether MARK is one of the marks that mark as read.
3352This is all marks except unread, ticked, dormant, and expirable."
3353 (not (or (= mark gnus-unread-mark)
3354 (= mark gnus-ticked-mark)
23f87bed 3355 (= mark gnus-spam-mark)
eec82323
LMI
3356 (= mark gnus-dormant-mark)
3357 (= mark gnus-expirable-mark))))
3358
3359(defmacro gnus-article-mark (number)
6748645f
LMI
3360 "Return the MARK of article NUMBER.
3361This macro should only be used when computing the mark the \"first\"
3362time; i.e., when generating the summary lines. After that,
3363`gnus-summary-article-mark' should be used to examine the
3364marks of articles."
eec82323 3365 `(cond
6748645f 3366 ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
6748645f 3367 ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
eec82323
LMI
3368 ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
3369 ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
23f87bed 3370 ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
eec82323
LMI
3371 ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
3372 ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
3373 (t (or (cdr (assq ,number gnus-newsgroup-reads))
3374 gnus-ancient-mark))))
3375
3376;; Saving hidden threads.
3377
eec82323
LMI
3378(defmacro gnus-save-hidden-threads (&rest forms)
3379 "Save hidden threads, eval FORMS, and restore the hidden threads."
3380 (let ((config (make-symbol "config")))
3381 `(let ((,config (gnus-hidden-threads-configuration)))
3382 (unwind-protect
3383 (save-excursion
3384 ,@forms)
3385 (gnus-restore-hidden-threads-configuration ,config)))))
23f87bed
MB
3386(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
3387(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
eec82323 3388
107ecebb
AS
3389(defun gnus-data-compute-positions ()
3390 "Compute the positions of all articles."
3391 (setq gnus-newsgroup-data-reverse nil)
3392 (let ((data gnus-newsgroup-data))
3393 (save-excursion
3394 (gnus-save-hidden-threads
3395 (gnus-summary-show-all-threads)
3396 (goto-char (point-min))
3397 (while data
3398 (while (get-text-property (point) 'gnus-intangible)
3399 (forward-line 1))
3400 (gnus-data-set-pos (car data) (+ (point) 3))
3401 (setq data (cdr data))
3402 (forward-line 1))))))
3403
16409b0b
GM
3404(defun gnus-hidden-threads-configuration ()
3405 "Return the current hidden threads configuration."
3406 (save-excursion
3407 (let (config)
3408 (goto-char (point-min))
62a83cc8
KY
3409 (while (not (eobp))
3410 (when (eq (get-char-property (point-at-eol) 'invisible) 'gnus-sum)
3411 (push (save-excursion (forward-line 0) (point)) config))
3412 (forward-line 1))
16409b0b
GM
3413 config)))
3414
3415(defun gnus-restore-hidden-threads-configuration (config)
3416 "Restore hidden threads configuration from CONFIG."
3417 (save-excursion
c7a91ce1 3418 (let (point (inhibit-read-only t))
16409b0b 3419 (while (setq point (pop config))
62a83cc8
KY
3420 (goto-char point)
3421 (gnus-summary-hide-thread)))))
16409b0b 3422
eec82323
LMI
3423;; Various summary mode internalish functions.
3424
3425(defun gnus-mouse-pick-article (e)
3426 (interactive "e")
3427 (mouse-set-point e)
3428 (gnus-summary-next-page nil t))
3429
3430(defun gnus-summary-set-display-table ()
16409b0b
GM
3431 "Change the display table.
3432Odd characters have a tendency to mess
3433up nicely formatted displays - we make all possible glyphs
3434display only a single character."
eec82323
LMI
3435
3436 ;; We start from the standard display table, if any.
3437 (let ((table (or (copy-sequence standard-display-table)
3438 (make-display-table)))
3439 (i 32))
3440 ;; Nix out all the control chars...
3441 (while (>= (setq i (1- i)) 0)
2b968687 3442 (gnus-put-display-table i [??] table))
23f87bed 3443 ;; ... but not newline and cr, of course. (cr is necessary for the
eec82323 3444 ;; selective display).
2b968687
MB
3445 (gnus-put-display-table ?\n nil table)
3446 (gnus-put-display-table ?\r nil table)
6748645f 3447 ;; We keep TAB as well.
2b968687 3448 (gnus-put-display-table ?\t nil table)
719120ef 3449 ;; We nix out any glyphs 127 through 255, or 127 through 159 in
fe62aacc 3450 ;; Emacs 23 (unicode), that are not set already.
719120ef
MB
3451 (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
3452 160
3453 256)))
eec82323
LMI
3454 (while (>= (setq i (1- i)) 127)
3455 ;; Only modify if the entry is nil.
2b968687
MB
3456 (unless (gnus-get-display-table i table)
3457 (gnus-put-display-table i [??] table))))
eec82323
LMI
3458 (setq buffer-display-table table)))
3459
23f87bed
MB
3460(defun gnus-summary-set-article-display-arrow (pos)
3461 "Update the overlay arrow to point to line at position POS."
e3e955fe
MB
3462 (when gnus-summary-display-arrow
3463 (make-local-variable 'overlay-arrow-position)
3464 (make-local-variable 'overlay-arrow-string)
23f87bed
MB
3465 (save-excursion
3466 (goto-char pos)
3467 (beginning-of-line)
3468 (unless overlay-arrow-position
3469 (setq overlay-arrow-position (make-marker)))
3470 (setq overlay-arrow-string "=>"
3471 overlay-arrow-position (set-marker overlay-arrow-position
3472 (point)
3473 (current-buffer))))))
3474
eec82323
LMI
3475(defun gnus-summary-setup-buffer (group)
3476 "Initialize summary buffer."
23f87bed
MB
3477 (let ((buffer (gnus-summary-buffer-name group))
3478 (dead-name (concat "*Dead Summary "
3479 (gnus-group-decoded-name group) "*")))
3480 ;; If a dead summary buffer exists, we kill it.
3481 (when (gnus-buffer-live-p dead-name)
3482 (gnus-kill-buffer dead-name))
eec82323
LMI
3483 (if (get-buffer buffer)
3484 (progn
3485 (set-buffer buffer)
3486 (setq gnus-summary-buffer (current-buffer))
3487 (not gnus-newsgroup-prepared))
3488 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
6748645f 3489 (setq gnus-summary-buffer (set-buffer (gnus-get-buffer-create buffer)))
eec82323
LMI
3490 (gnus-summary-mode group)
3491 (when gnus-carpal
3492 (gnus-carpal-setup-buffer 'summary))
01c52d31
MB
3493 (when (gnus-group-quit-config group)
3494 (set (make-local-variable 'gnus-single-article-buffer) nil))
3495 (make-local-variable 'gnus-article-buffer)
3496 (make-local-variable 'gnus-article-current)
3497 (make-local-variable 'gnus-original-article-buffer)
eec82323 3498 (setq gnus-newsgroup-name group)
23f87bed
MB
3499 ;; Set any local variables in the group parameters.
3500 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI
3501 t)))
3502
3503(defun gnus-set-global-variables ()
16409b0b
GM
3504 "Set the global equivalents of the buffer-local variables.
3505They are set to the latest values they had. These reflect the summary
3506buffer that was in action when the last article was fetched."
eec82323
LMI
3507 (when (eq major-mode 'gnus-summary-mode)
3508 (setq gnus-summary-buffer (current-buffer))
3509 (let ((name gnus-newsgroup-name)
3510 (marked gnus-newsgroup-marked)
23f87bed 3511 (spam gnus-newsgroup-spam-marked)
eec82323
LMI
3512 (unread gnus-newsgroup-unreads)
3513 (headers gnus-current-headers)
3514 (data gnus-newsgroup-data)
3515 (summary gnus-summary-buffer)
3516 (article-buffer gnus-article-buffer)
3517 (original gnus-original-article-buffer)
3518 (gac gnus-article-current)
3519 (reffed gnus-reffed-article-number)
16409b0b 3520 (score-file gnus-current-score-file)
23f87bed
MB
3521 (default-charset gnus-newsgroup-charset)
3522 vlist)
3523 (let ((locals gnus-newsgroup-variables))
3524 (while locals
3525 (if (consp (car locals))
3526 (push (eval (caar locals)) vlist)
3527 (push (eval (car locals)) vlist))
3528 (setq locals (cdr locals)))
3529 (setq vlist (nreverse vlist)))
01c52d31 3530 (with-current-buffer gnus-group-buffer
6748645f
LMI
3531 (setq gnus-newsgroup-name name
3532 gnus-newsgroup-marked marked
23f87bed 3533 gnus-newsgroup-spam-marked spam
6748645f
LMI
3534 gnus-newsgroup-unreads unread
3535 gnus-current-headers headers
3536 gnus-newsgroup-data data
3537 gnus-article-current gac
3538 gnus-summary-buffer summary
3539 gnus-article-buffer article-buffer
3540 gnus-original-article-buffer original
3541 gnus-reffed-article-number reffed
16409b0b
GM
3542 gnus-current-score-file score-file
3543 gnus-newsgroup-charset default-charset)
23f87bed
MB
3544 (let ((locals gnus-newsgroup-variables))
3545 (while locals
3546 (if (consp (car locals))
3547 (set (caar locals) (pop vlist))
3548 (set (car locals) (pop vlist)))
3549 (setq locals (cdr locals))))
eec82323
LMI
3550 ;; The article buffer also has local variables.
3551 (when (gnus-buffer-live-p gnus-article-buffer)
3552 (set-buffer gnus-article-buffer)
3553 (setq gnus-summary-buffer summary))))))
3554
3555(defun gnus-summary-article-unread-p (article)
3556 "Say whether ARTICLE is unread or not."
3557 (memq article gnus-newsgroup-unreads))
3558
3559(defun gnus-summary-first-article-p (&optional article)
3560 "Return whether ARTICLE is the first article in the buffer."
3561 (if (not (setq article (or article (gnus-summary-article-number))))
3562 nil
3563 (eq article (caar gnus-newsgroup-data))))
3564
3565(defun gnus-summary-last-article-p (&optional article)
3566 "Return whether ARTICLE is the last article in the buffer."
3567 (if (not (setq article (or article (gnus-summary-article-number))))
16409b0b
GM
3568 ;; All non-existent numbers are the last article. :-)
3569 t
eec82323
LMI
3570 (not (cdr (gnus-data-find-list article)))))
3571
4921bbdd
CY
3572(defun gnus-make-thread-indent-array (&optional n)
3573 (when (or n
3574 (progn (setq n 200) nil)
3575 (null gnus-thread-indent-array)
3576 (/= gnus-thread-indent-level gnus-thread-indent-array-level))
3577 (setq gnus-thread-indent-array (make-vector (1+ n) "")
3578 gnus-thread-indent-array-level gnus-thread-indent-level)
3579 (while (>= n 0)
3580 (aset gnus-thread-indent-array n
6a30c01d 3581 (make-string (* n gnus-thread-indent-level) ? ))
4921bbdd 3582 (setq n (1- n)))))
eec82323
LMI
3583
3584(defun gnus-update-summary-mark-positions ()
3585 "Compute where the summary marks are to go."
3586 (save-excursion
6748645f 3587 (when (gnus-buffer-exists-p gnus-summary-buffer)
eec82323 3588 (set-buffer gnus-summary-buffer))
5153a47a
MB
3589 (let ((spec gnus-summary-line-format-spec)
3590 pos)
eec82323
LMI
3591 (save-excursion
3592 (gnus-set-work-buffer)
5153a47a
MB
3593 (let ((gnus-tmp-unread ?Z)
3594 (gnus-replied-mark ?Z)
3595 (gnus-score-below-mark ?Z)
3596 (gnus-score-over-mark ?Z)
3597 (gnus-undownloaded-mark ?Z)
3598 (gnus-summary-line-format-spec spec)
54506618 3599 (gnus-newsgroup-downloadable '(0))
5153a47a
MB
3600 (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
3601 case-fold-search ignores)
3602 ;; Here, all marks are bound to Z.
3603 (gnus-summary-insert-line header
3604 0 nil t gnus-tmp-unread t nil "" nil 1)
3605 (goto-char (point-min))
3606 ;; Memorize the positions of the same characters as dummy marks.
3607 (while (re-search-forward "[A-D]" nil t)
3608 (push (point) ignores))
54506618 3609 (erase-buffer)
5153a47a
MB
3610 ;; We use A-D as dummy marks in order to know column positions
3611 ;; where marks should be inserted.
3612 (setq gnus-tmp-unread ?A
3613 gnus-replied-mark ?B
3614 gnus-score-below-mark ?C
3615 gnus-score-over-mark ?C
3616 gnus-undownloaded-mark ?D)
3617 (gnus-summary-insert-line header
3618 0 nil t gnus-tmp-unread t nil "" nil 1)
3619 ;; Ignore characters which aren't dummy marks.
3620 (dolist (p ignores)
3621 (delete-region (goto-char (1- p)) p)
3622 (insert ?Z))
eec82323 3623 (goto-char (point-min))
7c3bb5a5 3624 (setq pos (list (cons 'unread
5153a47a 3625 (and (search-forward "A" nil t)
7c3bb5a5 3626 (- (point) (point-min) 1)))))
eec82323 3627 (goto-char (point-min))
5153a47a 3628 (push (cons 'replied (and (search-forward "B" nil t)
667e0ba6 3629 (- (point) (point-min) 1)))
eec82323
LMI
3630 pos)
3631 (goto-char (point-min))
5153a47a 3632 (push (cons 'score (and (search-forward "C" nil t)
667e0ba6 3633 (- (point) (point-min) 1)))
6748645f
LMI
3634 pos)
3635 (goto-char (point-min))
5153a47a 3636 (push (cons 'download (and (search-forward "D" nil t)
7c3bb5a5 3637 (- (point) (point-min) 1)))
eec82323
LMI
3638 pos)))
3639 (setq gnus-summary-mark-positions pos))))
3640
3641(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
3642 "Insert a dummy root in the summary buffer."
3643 (beginning-of-line)
3644 (gnus-add-text-properties
3645 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
3646 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
3647
23f87bed
MB
3648(defun gnus-summary-extract-address-component (from)
3649 (or (car (funcall gnus-extract-address-components from))
3650 from))
3651
3652(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
3653 (let ((mail-parse-charset gnus-newsgroup-charset)
01c52d31 3654 (ignored-from-addresses (gnus-ignored-from-addresses))
23f87bed
MB
3655 ; Is it really necessary to do this next part for each summary line?
3656 ; Luckily, doesn't seem to slow things down much.
16409b0b 3657 (mail-parse-ignored-charsets
01c52d31
MB
3658 (with-current-buffer gnus-summary-buffer
3659 gnus-newsgroup-ignored-charsets)))
23f87bed 3660 (or
01c52d31
MB
3661 (and ignored-from-addresses
3662 (string-match ignored-from-addresses gnus-tmp-from)
23f87bed
MB
3663 (let ((extra-headers (mail-header-extra header))
3664 to
3665 newsgroups)
3666 (cond
3667 ((setq to (cdr (assq 'To extra-headers)))
01c52d31 3668 (concat gnus-summary-to-prefix
23f87bed
MB
3669 (inline
3670 (gnus-summary-extract-address-component
343d6628 3671 (funcall gnus-decode-encoded-address-function to)))))
01c52d31
MB
3672 ((setq newsgroups
3673 (or
3674 (cdr (assq 'Newsgroups extra-headers))
3675 (and
3676 (memq 'Newsgroups gnus-extra-headers)
3677 (eq (car (gnus-find-method-for-group
3678 gnus-newsgroup-name)) 'nntp)
3679 (gnus-group-real-name gnus-newsgroup-name))))
3680 (concat gnus-summary-newsgroup-prefix newsgroups)))))
23f87bed 3681 (inline (gnus-summary-extract-address-component gnus-tmp-from)))))
16409b0b 3682
eec82323
LMI
3683(defun gnus-summary-insert-line (gnus-tmp-header
3684 gnus-tmp-level gnus-tmp-current
23f87bed 3685 undownloaded gnus-tmp-unread gnus-tmp-replied
eec82323
LMI
3686 gnus-tmp-expirable gnus-tmp-subject-or-nil
3687 &optional gnus-tmp-dummy gnus-tmp-score
3688 gnus-tmp-process)
4921bbdd
CY
3689 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
3690 (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
3691 gnus-tmp-level)))
eec82323
LMI
3692 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
3693 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
3694 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
3695 (gnus-tmp-score-char
3696 (if (or (null gnus-summary-default-score)
3697 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
3698 gnus-summary-zcore-fuzz))
23f87bed 3699 ? ;Whitespace
eec82323
LMI
3700 (if (< gnus-tmp-score gnus-summary-default-score)
3701 gnus-score-below-mark gnus-score-over-mark)))
23f87bed 3702 (gnus-tmp-number (mail-header-number gnus-tmp-header))
eec82323
LMI
3703 (gnus-tmp-replied
3704 (cond (gnus-tmp-process gnus-process-mark)
3705 ((memq gnus-tmp-current gnus-newsgroup-cached)
3706 gnus-cached-mark)
3707 (gnus-tmp-replied gnus-replied-mark)
23f87bed
MB
3708 ((memq gnus-tmp-current gnus-newsgroup-forwarded)
3709 gnus-forwarded-mark)
eec82323
LMI
3710 ((memq gnus-tmp-current gnus-newsgroup-saved)
3711 gnus-saved-mark)
23f87bed
MB
3712 ((memq gnus-tmp-number gnus-newsgroup-recent)
3713 gnus-recent-mark)
3714 ((memq gnus-tmp-number gnus-newsgroup-unseen)
3715 gnus-unseen-mark)
3716 (t gnus-no-mark)))
3717 (gnus-tmp-downloaded
3718 (cond (undownloaded
3719 gnus-undownloaded-mark)
3720 (gnus-newsgroup-agentized
3721 gnus-downloaded-mark)
3722 (t
3723 gnus-no-mark)))
eec82323
LMI
3724 (gnus-tmp-from (mail-header-from gnus-tmp-header))
3725 (gnus-tmp-name
3726 (cond
3727 ((string-match "<[^>]+> *$" gnus-tmp-from)
3728 (let ((beg (match-beginning 0)))
23f87bed
MB
3729 (or (and (string-match "^\".+\"" gnus-tmp-from)
3730 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
3731 (substring gnus-tmp-from 0 beg))))
3732 ((string-match "(.+)" gnus-tmp-from)
3733 (substring gnus-tmp-from
3734 (1+ (match-beginning 0)) (1- (match-end 0))))
3735 (t gnus-tmp-from)))
3736 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
eec82323
LMI
3737 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
3738 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
c7a91ce1 3739 (inhibit-read-only t))
eec82323
LMI
3740 (when (string= gnus-tmp-name "")
3741 (setq gnus-tmp-name gnus-tmp-from))
3742 (unless (numberp gnus-tmp-lines)
23f87bed
MB
3743 (setq gnus-tmp-lines -1))
3744 (if (= gnus-tmp-lines -1)
3745 (setq gnus-tmp-lines "?")
3746 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
64763fe3
MB
3747 (condition-case ()
3748 (gnus-put-text-property
3749 (point)
3750 (progn (eval gnus-summary-line-format-spec) (point))
3751 'gnus-number gnus-tmp-number)
3752 (error (gnus-message 5 "Error updating the summary line")))
eec82323
LMI
3753 (when (gnus-visual-p 'summary-highlight 'highlight)
3754 (forward-line -1)
a9ec34f4 3755 (gnus-summary-highlight-line)
6748645f 3756 (gnus-run-hooks 'gnus-summary-update-hook)
eec82323
LMI
3757 (forward-line 1))))
3758
3759(defun gnus-summary-update-line (&optional dont-update)
16409b0b 3760 "Update summary line after change."
eec82323
LMI
3761 (when (and gnus-summary-default-score
3762 (not gnus-summary-inhibit-highlight))
3763 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
3764 (article (gnus-summary-article-number))
3765 (score (gnus-summary-article-score article)))
3766 (unless dont-update
3767 (if (and gnus-summary-mark-below
3768 (< (gnus-summary-article-score)
3769 gnus-summary-mark-below))
3770 ;; This article has a low score, so we mark it as read.
3771 (when (memq article gnus-newsgroup-unreads)
3772 (gnus-summary-mark-article-as-read gnus-low-score-mark))
3773 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
3774 ;; This article was previously marked as read on account
3775 ;; of a low score, but now it has risen, so we mark it as
3776 ;; unread.
3777 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
3778 (gnus-summary-update-mark
3779 (if (or (null gnus-summary-default-score)
3780 (<= (abs (- score gnus-summary-default-score))
3781 gnus-summary-zcore-fuzz))
23f87bed 3782 ? ;Whitespace
eec82323
LMI
3783 (if (< score gnus-summary-default-score)
3784 gnus-score-below-mark gnus-score-over-mark))
3785 'score))
3786 ;; Do visual highlighting.
3787 (when (gnus-visual-p 'summary-highlight 'highlight)
a9ec34f4 3788 (gnus-summary-highlight-line)
6748645f 3789 (gnus-run-hooks 'gnus-summary-update-hook)))))
eec82323
LMI
3790
3791(defvar gnus-tmp-new-adopts nil)
3792
3793(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
3794 "Return the number of articles in THREAD.
3795This may be 0 in some cases -- if none of the articles in
3796the thread are to be displayed."
3797 (let* ((number
23f87bed 3798 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
eec82323
LMI
3799 (cond
3800 ((not (listp thread))
3801 1)
3802 ((and (consp thread) (cdr thread))
3803 (apply
3804 '+ 1 (mapcar
3805 'gnus-summary-number-of-articles-in-thread (cdr thread))))
3806 ((null thread)
3807 1)
3808 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
3809 1)
3810 (t 0))))
3811 (when (and level (zerop level) gnus-tmp-new-adopts)
3812 (incf number
3813 (apply '+ (mapcar
3814 'gnus-summary-number-of-articles-in-thread
3815 gnus-tmp-new-adopts))))
3816 (if char
3817 (if (> number 1) gnus-not-empty-thread-mark
3818 gnus-empty-thread-mark)
3819 number)))
3820
23f87bed
MB
3821(defsubst gnus-summary-line-message-size (head)
3822 "Return pretty-printed version of message size.
3823This function is intended to be used in
3824`gnus-summary-line-format-alist'."
3825 (let ((c (or (mail-header-chars head) -1)))
3826 (cond ((< c 0) "n/a") ; chars not available
3827 ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
3828 ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
3829 ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
3830 (t (format "%dM" (/ c (* 1024.0 1024)))))))
3831
3832
eec82323
LMI
3833(defun gnus-summary-set-local-parameters (group)
3834 "Go through the local params of GROUP and set all variable specs in that list."
01c52d31
MB
3835 (let ((vars '(quit-config))) ; Ignore quit-config.
3836 (dolist (elem (gnus-group-find-parameter group))
eec82323
LMI
3837 (and (consp elem) ; Has to be a cons.
3838 (consp (cdr elem)) ; The cdr has to be a list.
3839 (symbolp (car elem)) ; Has to be a symbol in there.
23f87bed 3840 (not (memq (car elem) vars))
e3e955fe 3841 (ignore-errors
23f87bed 3842 (push (car elem) vars)
e3e955fe
MB
3843 ;; Variables like `gnus-show-threads' that are globally
3844 ;; bound, if used as group parameters, need to get to be
3845 ;; buffer-local, whereas just parameters like `gcc-self',
3846 ;; `timestamp', etc. should not be bound as variables.
3847 (if (boundp (car elem))
3848 (set (make-local-variable (car elem)) (eval (nth 1 elem)))
3849 (eval (nth 1 elem))))))))
eec82323
LMI
3850
3851(defun gnus-summary-read-group (group &optional show-all no-article
6748645f
LMI
3852 kill-buffer no-display backward
3853 select-articles)
eec82323
LMI
3854 "Start reading news in newsgroup GROUP.
3855If SHOW-ALL is non-nil, already read articles are also listed.
3856If NO-ARTICLE is non-nil, no article is selected initially.
3857If NO-DISPLAY, don't generate a summary buffer."
3858 (let (result)
3859 (while (and group
3860 (null (setq result
3861 (let ((gnus-auto-select-next nil))
6748645f
LMI
3862 (or (gnus-summary-read-group-1
3863 group show-all no-article
3864 kill-buffer no-display
3865 select-articles)
3866 (setq show-all nil
16409b0b 3867 select-articles nil)))))
eec82323
LMI
3868 (eq gnus-auto-select-next 'quietly))
3869 (set-buffer gnus-group-buffer)
6748645f
LMI
3870 ;; The entry function called above goes to the next
3871 ;; group automatically, so we go two groups back
3872 ;; if we are searching for the previous group.
3873 (when backward
3874 (gnus-group-prev-unread-group 2))
eec82323
LMI
3875 (if (not (equal group (gnus-group-group-name)))
3876 (setq group (gnus-group-group-name))
3877 (setq group nil)))
3878 result))
3879
3880(defun gnus-summary-read-group-1 (group show-all no-article
6748645f
LMI
3881 kill-buffer no-display
3882 &optional select-articles)
eec82323 3883 ;; Killed foreign groups can't be entered.
23f87bed
MB
3884 ;; (when (and (not (gnus-group-native-p group))
3885 ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
3886 ;; (error "Dead non-native groups can't be entered"))
3887 (gnus-message 5 "Retrieving newsgroup: %s..."
3888 (gnus-group-decoded-name group))
eec82323
LMI
3889 (let* ((new-group (gnus-summary-setup-buffer group))
3890 (quit-config (gnus-group-quit-config group))
6748645f
LMI
3891 (did-select (and new-group (gnus-select-newsgroup
3892 group show-all select-articles))))
eec82323
LMI
3893 (cond
3894 ;; This summary buffer exists already, so we just select it.
3895 ((not new-group)
3896 (gnus-set-global-variables)
3897 (when kill-buffer
3898 (gnus-kill-or-deaden-summary kill-buffer))
3899 (gnus-configure-windows 'summary 'force)
3900 (gnus-set-mode-line 'summary)
3901 (gnus-summary-position-point)
3902 (message "")
3903 t)
3904 ;; We couldn't select this group.
3905 ((null did-select)
3906 (when (and (eq major-mode 'gnus-summary-mode)
3907 (not (equal (current-buffer) kill-buffer)))
3908 (kill-buffer (current-buffer))
3909 (if (not quit-config)
3910 (progn
6748645f
LMI
3911 ;; Update the info -- marks might need to be removed,
3912 ;; for instance.
3913 (gnus-summary-update-info)
eec82323
LMI
3914 (set-buffer gnus-group-buffer)
3915 (gnus-group-jump-to-group group)
3916 (gnus-group-next-unread-group 1))
3917 (gnus-handle-ephemeral-exit quit-config)))
23f87bed
MB
3918 (let ((grpinfo (gnus-get-info group)))
3919 (if (null (gnus-info-read grpinfo))
3920 (gnus-message 3 "Group %s contains no messages"
3921 (gnus-group-decoded-name group))
3922 (gnus-message 3 "Can't select group")))
eec82323
LMI
3923 nil)
3924 ;; The user did a `C-g' while prompting for number of articles,
3925 ;; so we exit this group.
3926 ((eq did-select 'quit)
3927 (and (eq major-mode 'gnus-summary-mode)
3928 (not (equal (current-buffer) kill-buffer))
3929 (kill-buffer (current-buffer)))
3930 (when kill-buffer
3931 (gnus-kill-or-deaden-summary kill-buffer))
3932 (if (not quit-config)
3933 (progn
3934 (set-buffer gnus-group-buffer)
3935 (gnus-group-jump-to-group group)
eec82323
LMI
3936 (gnus-configure-windows 'group 'force))
3937 (gnus-handle-ephemeral-exit quit-config))
3938 ;; Finally signal the quit.
3939 (signal 'quit nil))
3940 ;; The group was successfully selected.
3941 (t
3942 (gnus-set-global-variables)
3943 ;; Save the active value in effect when the group was entered.
3944 (setq gnus-newsgroup-active
3945 (gnus-copy-sequence
3946 (gnus-active gnus-newsgroup-name)))
3947 ;; You can change the summary buffer in some way with this hook.
6748645f 3948 (gnus-run-hooks 'gnus-select-group-hook)
5153a47a
MB
3949 (when (memq 'summary (gnus-update-format-specifications
3950 nil 'summary 'summary-mode 'summary-dummy))
3951 ;; The format specification for the summary line was updated,
3952 ;; so we need to update the mark positions as well.
3953 (gnus-update-summary-mark-positions))
eec82323
LMI
3954 ;; Do score processing.
3955 (when gnus-use-scoring
3956 (gnus-possibly-score-headers))
3957 ;; Check whether to fill in the gaps in the threads.
3958 (when gnus-build-sparse-threads
3959 (gnus-build-sparse-threads))
3960 ;; Find the initial limit.
26c9afc3
MB
3961 (if show-all
3962 (let ((gnus-newsgroup-dormant nil))
eec82323 3963 (gnus-summary-initial-limit show-all))
26c9afc3 3964 (gnus-summary-initial-limit show-all))
eec82323
LMI
3965 ;; Generate the summary buffer.
3966 (unless no-display
3967 (gnus-summary-prepare))
3968 (when gnus-use-trees
3969 (gnus-tree-open group)
3970 (setq gnus-summary-highlight-line-function
3971 'gnus-tree-highlight-article))
3972 ;; If the summary buffer is empty, but there are some low-scored
3973 ;; articles or some excluded dormants, we include these in the
3974 ;; buffer.
3975 (when (and (zerop (buffer-size))
3976 (not no-display))
3977 (cond (gnus-newsgroup-dormant
3978 (gnus-summary-limit-include-dormant))
3979 ((and gnus-newsgroup-scored show-all)
3980 (gnus-summary-limit-include-expunged t))))
3981 ;; Function `gnus-apply-kill-file' must be called in this hook.
6748645f 3982 (gnus-run-hooks 'gnus-apply-kill-hook)
eec82323
LMI
3983 (if (and (zerop (buffer-size))
3984 (not no-display))
3985 (progn
3986 ;; This newsgroup is empty.
3987 (gnus-summary-catchup-and-exit nil t)
3988 (gnus-message 6 "No unread news")
3989 (when kill-buffer
3990 (gnus-kill-or-deaden-summary kill-buffer))
3991 ;; Return nil from this function.
3992 nil)
3993 ;; Hide conversation thread subtrees. We cannot do this in
3994 ;; gnus-summary-prepare-hook since kill processing may not
3995 ;; work with hidden articles.
23f87bed 3996 (gnus-summary-maybe-hide-threads)
6748645f
LMI
3997 (when kill-buffer
3998 (gnus-kill-or-deaden-summary kill-buffer))
23f87bed 3999 (gnus-summary-auto-select-subject)
eec82323
LMI
4000 ;; Show first unread article if requested.
4001 (if (and (not no-article)
4002 (not no-display)
4003 gnus-newsgroup-unreads
4004 gnus-auto-select-first)
16409b0b
GM
4005 (progn
4006 (gnus-configure-windows 'summary)
23f87bed
MB
4007 (let ((art (gnus-summary-article-number)))
4008 (unless (and (not gnus-plugged)
4009 (or (memq art gnus-newsgroup-undownloaded)
4010 (memq art gnus-newsgroup-downloadable)))
4011 (gnus-summary-goto-article art))))
4012 ;; Don't select any articles.
eec82323 4013 (gnus-summary-position-point)
6748645f
LMI
4014 (gnus-configure-windows 'summary 'force)
4015 (gnus-set-mode-line 'summary))
23f87bed
MB
4016 (when (and gnus-auto-center-group
4017 (get-buffer-window gnus-group-buffer t))
eec82323
LMI
4018 ;; Gotta use windows, because recenter does weird stuff if
4019 ;; the current buffer ain't the displayed window.
4020 (let ((owin (selected-window)))
4021 (select-window (get-buffer-window gnus-group-buffer t))
4022 (when (gnus-group-goto-group group)
4023 (recenter))
4024 (select-window owin)))
4025 ;; Mark this buffer as "prepared".
4026 (setq gnus-newsgroup-prepared t)
6748645f 4027 (gnus-run-hooks 'gnus-summary-prepared-hook)
23f87bed
MB
4028 (unless (gnus-ephemeral-group-p group)
4029 (gnus-group-update-group group))
eec82323
LMI
4030 t)))))
4031
23f87bed
MB
4032(defun gnus-summary-auto-select-subject ()
4033 "Select the subject line on initial group entry."
4034 (goto-char (point-min))
4035 (cond
4036 ((eq gnus-auto-select-subject 'best)
4037 (gnus-summary-best-unread-subject))
4038 ((eq gnus-auto-select-subject 'unread)
4039 (gnus-summary-first-unread-subject))
4040 ((eq gnus-auto-select-subject 'unseen)
4041 (gnus-summary-first-unseen-subject))
4042 ((eq gnus-auto-select-subject 'unseen-or-unread)
4043 (gnus-summary-first-unseen-or-unread-subject))
4044 ((eq gnus-auto-select-subject 'first)
4045 ;; Do nothing.
4046 )
4047 ((functionp gnus-auto-select-subject)
4048 (funcall gnus-auto-select-subject))))
4049
eec82323
LMI
4050(defun gnus-summary-prepare ()
4051 "Generate the summary buffer."
4052 (interactive)
c7a91ce1 4053 (let ((inhibit-read-only t))
eec82323
LMI
4054 (erase-buffer)
4055 (setq gnus-newsgroup-data nil
4056 gnus-newsgroup-data-reverse nil)
6748645f 4057 (gnus-run-hooks 'gnus-summary-generate-hook)
eec82323
LMI
4058 ;; Generate the buffer, either with threads or without.
4059 (when gnus-newsgroup-headers
4060 (gnus-summary-prepare-threads
4061 (if gnus-show-threads
4062 (gnus-sort-gathered-threads
4063 (funcall gnus-summary-thread-gathering-function
4064 (gnus-sort-threads
4065 (gnus-cut-threads (gnus-make-threads)))))
4066 ;; Unthreaded display.
4067 (gnus-sort-articles gnus-newsgroup-headers))))
4068 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
4069 ;; Call hooks for modifying summary buffer.
4070 (goto-char (point-min))
6748645f 4071 (gnus-run-hooks 'gnus-summary-prepare-hook)))
eec82323
LMI
4072
4073(defsubst gnus-general-simplify-subject (subject)
23f87bed 4074 "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
eec82323
LMI
4075 (setq subject
4076 (cond
4077 ;; Truncate the subject.
6748645f
LMI
4078 (gnus-simplify-subject-functions
4079 (gnus-map-function gnus-simplify-subject-functions subject))
eec82323
LMI
4080 ((numberp gnus-summary-gather-subject-limit)
4081 (setq subject (gnus-simplify-subject-re subject))
4082 (if (> (length subject) gnus-summary-gather-subject-limit)
4083 (substring subject 0 gnus-summary-gather-subject-limit)
4084 subject))
4085 ;; Fuzzily simplify it.
4086 ((eq 'fuzzy gnus-summary-gather-subject-limit)
4087 (gnus-simplify-subject-fuzzy subject))
4088 ;; Just remove the leading "Re:".
4089 (t
4090 (gnus-simplify-subject-re subject))))
4091
4092 (if (and gnus-summary-gather-exclude-subject
4093 (string-match gnus-summary-gather-exclude-subject subject))
23f87bed 4094 nil ; This article shouldn't be gathered
eec82323
LMI
4095 subject))
4096
4097(defun gnus-summary-simplify-subject-query ()
4098 "Query where the respool algorithm would put this article."
4099 (interactive)
eec82323 4100 (gnus-summary-select-article)
274f1353 4101 (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
eec82323
LMI
4102
4103(defun gnus-gather-threads-by-subject (threads)
4104 "Gather threads by looking at Subject headers."
4105 (if (not gnus-summary-make-false-root)
4106 threads
4107 (let ((hashtb (gnus-make-hashtable 1024))
4108 (prev threads)
4109 (result threads)
4110 subject hthread whole-subject)
4111 (while threads
4112 (setq subject (gnus-general-simplify-subject
4113 (setq whole-subject (mail-header-subject
4114 (caar threads)))))
4115 (when subject
4116 (if (setq hthread (gnus-gethash subject hashtb))
4117 (progn
4118 ;; We enter a dummy root into the thread, if we
4119 ;; haven't done that already.
4120 (unless (stringp (caar hthread))
4121 (setcar hthread (list whole-subject (car hthread))))
4122 ;; We add this new gathered thread to this gathered
4123 ;; thread.
4124 (setcdr (car hthread)
4125 (nconc (cdar hthread) (list (car threads))))
4126 ;; Remove it from the list of threads.
4127 (setcdr prev (cdr threads))
4128 (setq threads prev))
4129 ;; Enter this thread into the hash table.
23f87bed
MB
4130 (gnus-sethash subject
4131 (if gnus-summary-make-false-root-always
4132 (progn
4133 ;; If you want a dummy root above all
4134 ;; threads...
4135 (setcar threads (list whole-subject
4136 (car threads)))
4137 threads)
4138 threads)
4139 hashtb)))
eec82323
LMI
4140 (setq prev threads)
4141 (setq threads (cdr threads)))
4142 result)))
4143
4144(defun gnus-gather-threads-by-references (threads)
4145 "Gather threads by looking at References headers."
4146 (let ((idhashtb (gnus-make-hashtable 1024))
4147 (thhashtb (gnus-make-hashtable 1024))
4148 (prev threads)
4149 (result threads)
4150 ids references id gthread gid entered ref)
4151 (while threads
4152 (when (setq references (mail-header-references (caar threads)))
4153 (setq id (mail-header-id (caar threads))
23f87bed 4154 ids (inline (gnus-split-references references))
eec82323
LMI
4155 entered nil)
4156 (while (setq ref (pop ids))
4157 (setq ids (delete ref ids))
4158 (if (not (setq gid (gnus-gethash ref idhashtb)))
4159 (progn
4160 (gnus-sethash ref id idhashtb)
4161 (gnus-sethash id threads thhashtb))
4162 (setq gthread (gnus-gethash gid thhashtb))
4163 (unless entered
4164 ;; We enter a dummy root into the thread, if we
4165 ;; haven't done that already.
4166 (unless (stringp (caar gthread))
4167 (setcar gthread (list (mail-header-subject (caar gthread))
4168 (car gthread))))
4169 ;; We add this new gathered thread to this gathered
4170 ;; thread.
4171 (setcdr (car gthread)
4172 (nconc (cdar gthread) (list (car threads)))))
4173 ;; Add it into the thread hash table.
4174 (gnus-sethash id gthread thhashtb)
4175 (setq entered t)
4176 ;; Remove it from the list of threads.
4177 (setcdr prev (cdr threads))
4178 (setq threads prev))))
4179 (setq prev threads)
4180 (setq threads (cdr threads)))
4181 result))
4182
4183(defun gnus-sort-gathered-threads (threads)
16409b0b 4184 "Sort subtreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
eec82323
LMI
4185 (let ((result threads))
4186 (while threads
4187 (when (stringp (caar threads))
4188 (setcdr (car threads)
16409b0b 4189 (sort (cdar threads) gnus-sort-gathered-threads-function)))
eec82323
LMI
4190 (setq threads (cdr threads)))
4191 result))
4192
4193(defun gnus-thread-loop-p (root thread)
4194 "Say whether ROOT is in THREAD."
4195 (let ((stack (list thread))
4196 (infloop 0)
4197 th)
4198 (while (setq thread (pop stack))
4199 (setq th (cdr thread))
4200 (while (and th
4201 (not (eq (caar th) root)))
4202 (pop th))
4203 (if th
4204 ;; We have found a loop.
4205 (let (ref-dep)
4206 (setcdr thread (delq (car th) (cdr thread)))
4207 (if (boundp (setq ref-dep (intern "none"
4208 gnus-newsgroup-dependencies)))
4209 (setcdr (symbol-value ref-dep)
4210 (nconc (cdr (symbol-value ref-dep))
4211 (list (car th))))
4212 (set ref-dep (list nil (car th))))
4213 (setq infloop 1
4214 stack nil))
4215 ;; Push all the subthreads onto the stack.
4216 (push (cdr thread) stack)))
4217 infloop))
4218
4219(defun gnus-make-threads ()
01ccbb85 4220 "Go through the dependency hashtb and find the roots. Return all threads."
eec82323
LMI
4221 (let (threads)
4222 (while (catch 'infloop
4223 (mapatoms
4224 (lambda (refs)
4225 ;; Deal with self-referencing References loops.
4226 (when (and (car (symbol-value refs))
4227 (not (zerop
4228 (apply
4229 '+
4230 (mapcar
4231 (lambda (thread)
4232 (gnus-thread-loop-p
4233 (car (symbol-value refs)) thread))
4234 (cdr (symbol-value refs)))))))
4235 (setq threads nil)
4236 (throw 'infloop t))
4237 (unless (car (symbol-value refs))
23f87bed
MB
4238 ;; These threads do not refer back to any other
4239 ;; articles, so they're roots.
eec82323
LMI
4240 (setq threads (append (cdr (symbol-value refs)) threads))))
4241 gnus-newsgroup-dependencies)))
4242 threads))
4243
6748645f 4244;; Build the thread tree.
16409b0b 4245(defsubst gnus-dependencies-add-header (header dependencies force-new)
6748645f
LMI
4246 "Enter HEADER into the DEPENDENCIES table if it is not already there.
4247
4248If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
4249if it was already present.
4250
4251If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
4252will not be entered in the DEPENDENCIES table. Otherwise duplicate
23f87bed
MB
4253Message-IDs will be renamed to a unique Message-ID before being
4254entered.
6748645f
LMI
4255
4256Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
4257 (let* ((id (mail-header-id header))
4258 (id-dep (and id (intern id dependencies)))
23f87bed 4259 parent-id ref ref-dep ref-header replaced)
6748645f
LMI
4260 ;; Enter this `header' in the `dependencies' table.
4261 (cond
4262 ((not id-dep)
4263 (setq header nil))
4264 ;; The first two cases do the normal part: enter a new `header'
4265 ;; in the `dependencies' table.
4266 ((not (boundp id-dep))
4267 (set id-dep (list header)))
4268 ((null (car (symbol-value id-dep)))
4269 (setcar (symbol-value id-dep) header))
4270
4271 ;; From here the `header' was already present in the
4272 ;; `dependencies' table.
4273 (force-new
4274 ;; Overrides an existing entry;
4275 ;; just set the header part of the entry.
23f87bed
MB
4276 (setcar (symbol-value id-dep) header)
4277 (setq replaced t))
6748645f
LMI
4278
4279 ;; Renames the existing `header' to a unique Message-ID.
4280 ((not gnus-summary-ignore-duplicates)
4281 ;; An article with this Message-ID has already been seen.
4282 ;; We rename the Message-ID.
4283 (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
4284 (list header))
4285 (mail-header-set-id header id))
4286
4287 ;; The last case ignores an existing entry, except it adds any
4288 ;; additional Xrefs (in case the two articles came from different
4289 ;; servers.
4290 ;; Also sets `header' to `nil' meaning that the `dependencies'
4291 ;; table was *not* modified.
4292 (t
4293 (mail-header-set-xref
4294 (car (symbol-value id-dep))
4295 (concat (or (mail-header-xref (car (symbol-value id-dep)))
4296 "")
4297 (or (mail-header-xref header) "")))
4298 (setq header nil)))
4299
23f87bed
MB
4300 (when (and header (not replaced))
4301 ;; First check that we are not creating a References loop.
4302 (setq parent-id (gnus-parent-id (mail-header-references header)))
4303 (setq ref parent-id)
6748645f
LMI
4304 (while (and ref
4305 (setq ref-dep (intern-soft ref dependencies))
4306 (boundp ref-dep)
4307 (setq ref-header (car (symbol-value ref-dep))))
4308 (if (string= id ref)
4309 ;; Yuk! This is a reference loop. Make the article be a
4310 ;; root article.
4311 (progn
4312 (mail-header-set-references (car (symbol-value id-dep)) "none")
23f87bed
MB
4313 (setq ref nil)
4314 (setq parent-id nil))
6748645f 4315 (setq ref (gnus-parent-id (mail-header-references ref-header)))))
23f87bed 4316 (setq ref-dep (intern (or parent-id "none") dependencies))
6748645f
LMI
4317 (if (boundp ref-dep)
4318 (setcdr (symbol-value ref-dep)
4319 (nconc (cdr (symbol-value ref-dep))
4320 (list (symbol-value id-dep))))
4321 (set ref-dep (list nil (symbol-value id-dep)))))
4322 header))
4323
23f87bed
MB
4324(defun gnus-extract-message-id-from-in-reply-to (string)
4325 (if (string-match "<[^>]+>" string)
4326 (substring string (match-beginning 0) (match-end 0))
4327 nil))
4328
eec82323
LMI
4329(defun gnus-build-sparse-threads ()
4330 (let ((headers gnus-newsgroup-headers)
16409b0b 4331 (mail-parse-charset gnus-newsgroup-charset)
6748645f 4332 (gnus-summary-ignore-duplicates t)
eec82323 4333 header references generation relations
6748645f 4334 subject child end new-child date)
eec82323
LMI
4335 ;; First we create an alist of generations/relations, where
4336 ;; generations is how much we trust the relation, and the relation
4337 ;; is parent/child.
4338 (gnus-message 7 "Making sparse threads...")
4339 (save-excursion
4340 (nnheader-set-temp-buffer " *gnus sparse threads*")
4341 (while (setq header (pop headers))
4342 (when (and (setq references (mail-header-references header))
4343 (not (string= references "")))
4344 (insert references)
4345 (setq child (mail-header-id header)
6748645f
LMI
4346 subject (mail-header-subject header)
4347 date (mail-header-date header)
4348 generation 0)
eec82323
LMI
4349 (while (search-backward ">" nil t)
4350 (setq end (1+ (point)))
4351 (when (search-backward "<" nil t)
6748645f 4352 (setq new-child (buffer-substring (point) end))
eec82323 4353 (push (list (incf generation)
6748645f
LMI
4354 child (setq child new-child)
4355 subject date)
eec82323 4356 relations)))
6748645f
LMI
4357 (when child
4358 (push (list (1+ generation) child nil subject) relations))
eec82323
LMI
4359 (erase-buffer)))
4360 (kill-buffer (current-buffer)))
4361 ;; Sort over trustworthiness.
01c52d31
MB
4362 (dolist (relation (sort relations 'car-less-than-car))
4363 (when (gnus-dependencies-add-header
4364 (make-full-mail-header
4365 gnus-reffed-article-number
4366 (nth 3 relation) "" (or (nth 4 relation) "")
4367 (nth 1 relation)
4368 (or (nth 2 relation) "") 0 0 "")
4369 gnus-newsgroup-dependencies nil)
4370 (push gnus-reffed-article-number gnus-newsgroup-limit)
4371 (push gnus-reffed-article-number gnus-newsgroup-sparse)
4372 (push (cons gnus-reffed-article-number gnus-sparse-mark)
4373 gnus-newsgroup-reads)
4374 (decf gnus-reffed-article-number)))
eec82323
LMI
4375 (gnus-message 7 "Making sparse threads...done")))
4376
4377(defun gnus-build-old-threads ()
4378 ;; Look at all the articles that refer back to old articles, and
4379 ;; fetch the headers for the articles that aren't there. This will
4380 ;; build complete threads - if the roots haven't been expired by the
4381 ;; server, that is.
16409b0b
GM
4382 (let ((mail-parse-charset gnus-newsgroup-charset)
4383 id heads)
eec82323
LMI
4384 (mapatoms
4385 (lambda (refs)
4386 (when (not (car (symbol-value refs)))
4387 (setq heads (cdr (symbol-value refs)))
4388 (while heads
4389 (if (memq (mail-header-number (caar heads))
4390 gnus-newsgroup-dormant)
4391 (setq heads (cdr heads))
4392 (setq id (symbol-name refs))
4393 (while (and (setq id (gnus-build-get-header id))
6748645f 4394 (not (car (gnus-id-to-thread id)))))
eec82323
LMI
4395 (setq heads nil)))))
4396 gnus-newsgroup-dependencies)))
4397
23f87bed
MB
4398(defsubst gnus-remove-odd-characters (string)
4399 "Translate STRING into something that doesn't contain weird characters."
4400 (mm-subst-char-in-string
4401 ?\r ?\-
01c52d31 4402 (mm-subst-char-in-string ?\n ?\- string t) t))
23f87bed 4403
6748645f
LMI
4404;; This function has to be called with point after the article number
4405;; on the beginning of the line.
4406(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
01c52d31 4407 (let ((eol (point-at-eol))
6748645f 4408 (buffer (current-buffer))
23f87bed 4409 header references in-reply-to)
6748645f
LMI
4410
4411 ;; overview: [num subject from date id refs chars lines misc]
4412 (unwind-protect
23f87bed 4413 (let (x)
6748645f
LMI
4414 (narrow-to-region (point) eol)
4415 (unless (eobp)
4416 (forward-char))
4417
4418 (setq header
4419 (make-full-mail-header
4420 number ; number
23f87bed
MB
4421 (condition-case () ; subject
4422 (gnus-remove-odd-characters
4423 (funcall gnus-decode-encoded-word-function
4424 (setq x (nnheader-nov-field))))
4425 (error x))
4426 (condition-case () ; from
4427 (gnus-remove-odd-characters
343d6628 4428 (funcall gnus-decode-encoded-address-function
23f87bed
MB
4429 (setq x (nnheader-nov-field))))
4430 (error x))
16409b0b 4431 (nnheader-nov-field) ; date
01c52d31 4432 (nnheader-nov-read-message-id number) ; id
23f87bed 4433 (setq references (nnheader-nov-field)) ; refs
16409b0b
GM
4434 (nnheader-nov-read-integer) ; chars
4435 (nnheader-nov-read-integer) ; lines
4436 (unless (eobp)
8b93df01
DL
4437 (if (looking-at "Xref: ")
4438 (goto-char (match-end 0)))
4439 (nnheader-nov-field)) ; Xref
16409b0b 4440 (nnheader-nov-parse-extra)))) ; extra
6748645f
LMI
4441
4442 (widen))
4443
23f87bed
MB
4444 (when (and (string= references "")
4445 (setq in-reply-to (mail-header-extra header))
4446 (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
4447 (mail-header-set-references
4448 header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
4449
6748645f
LMI
4450 (when gnus-alter-header-function
4451 (funcall gnus-alter-header-function header))
4452 (gnus-dependencies-add-header header dependencies force-new)))
4453
eec82323 4454(defun gnus-build-get-header (id)
16409b0b
GM
4455 "Look through the buffer of NOV lines and find the header to ID.
4456Enter this line into the dependencies hash table, and return
4457the id of the parent article (if any)."
eec82323
LMI
4458 (let ((deps gnus-newsgroup-dependencies)
4459 found header)
4460 (prog1
c7a91ce1 4461 (with-current-buffer nntp-server-buffer
eec82323
LMI
4462 (let ((case-fold-search nil))
4463 (goto-char (point-min))
4464 (while (and (not found)
4465 (search-forward id nil t))
4466 (beginning-of-line)
4467 (setq found (looking-at
4468 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
4469 (regexp-quote id))))
4470 (or found (beginning-of-line 2)))
4471 (when found
4472 (beginning-of-line)
4473 (and
4474 (setq header (gnus-nov-parse-line
4475 (read (current-buffer)) deps))
4476 (gnus-parent-id (mail-header-references header))))))
4477 (when header
4478 (let ((number (mail-header-number header)))
4479 (push number gnus-newsgroup-limit)
4480 (push header gnus-newsgroup-headers)
4481 (if (memq number gnus-newsgroup-unselected)
4482 (progn
23f87bed
MB
4483 (setq gnus-newsgroup-unreads
4484 (gnus-add-to-sorted-list gnus-newsgroup-unreads
4485 number))
eec82323
LMI
4486 (setq gnus-newsgroup-unselected
4487 (delq number gnus-newsgroup-unselected)))
4488 (push number gnus-newsgroup-ancient)))))))
4489
6748645f
LMI
4490(defun gnus-build-all-threads ()
4491 "Read all the headers."
4492 (let ((gnus-summary-ignore-duplicates t)
16409b0b 4493 (mail-parse-charset gnus-newsgroup-charset)
6748645f
LMI
4494 (dependencies gnus-newsgroup-dependencies)
4495 header article)
c7a91ce1 4496 (with-current-buffer nntp-server-buffer
6748645f
LMI
4497 (let ((case-fold-search nil))
4498 (goto-char (point-min))
4499 (while (not (eobp))
4500 (ignore-errors
4501 (setq article (read (current-buffer))
16409b0b 4502 header (gnus-nov-parse-line article dependencies)))
6748645f 4503 (when header
01c52d31 4504 (with-current-buffer gnus-summary-buffer
6748645f
LMI
4505 (push header gnus-newsgroup-headers)
4506 (if (memq (setq article (mail-header-number header))
4507 gnus-newsgroup-unselected)
4508 (progn
23f87bed
MB
4509 (setq gnus-newsgroup-unreads
4510 (gnus-add-to-sorted-list
4511 gnus-newsgroup-unreads article))
6748645f
LMI
4512 (setq gnus-newsgroup-unselected
4513 (delq article gnus-newsgroup-unselected)))
4514 (push article gnus-newsgroup-ancient)))
4515 (forward-line 1)))))))
4516
eec82323 4517(defun gnus-summary-update-article-line (article header)
23f87bed 4518 "Update the line for ARTICLE using HEADER."
eec82323
LMI
4519 (let* ((id (mail-header-id header))
4520 (thread (gnus-id-to-thread id)))
4521 (unless thread
4522 (error "Article in no thread"))
4523 ;; Update the thread.
4524 (setcar thread header)
4525 (gnus-summary-goto-subject article)
4526 (let* ((datal (gnus-data-find-list article))
4527 (data (car datal))
c7a91ce1 4528 (inhibit-read-only t)
eec82323
LMI
4529 (level (gnus-summary-thread-level)))
4530 (gnus-delete-line)
23f87bed
MB
4531 (let ((inserted (- (point)
4532 (progn
4533 (gnus-summary-insert-line
4534 header level nil
4535 (memq article gnus-newsgroup-undownloaded)
4536 (gnus-article-mark article)
4537 (memq article gnus-newsgroup-replied)
4538 (memq article gnus-newsgroup-expirable)
4539 ;; Only insert the Subject string when it's different
4540 ;; from the previous Subject string.
4541 (if (and
4542 gnus-show-threads
4543 (gnus-subject-equal
4544 (condition-case ()
4545 (mail-header-subject
4546 (gnus-data-header
4547 (cadr
4548 (gnus-data-find-list
4549 article
4550 (gnus-data-list t)))))
4551 ;; Error on the side of excessive subjects.
4552 (error ""))
4553 (mail-header-subject header)))
4554 ""
4555 (mail-header-subject header))
4556 nil (cdr (assq article gnus-newsgroup-scored))
4557 (memq article gnus-newsgroup-processable))
4558 (point)))))
4559 (when (cdr datal)
4560 (gnus-data-update-list
4561 (cdr datal)
4562 (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
eec82323
LMI
4563
4564(defun gnus-summary-update-article (article &optional iheader)
4565 "Update ARTICLE in the summary buffer."
4566 (set-buffer gnus-summary-buffer)
6748645f 4567 (let* ((header (gnus-summary-article-header article))
eec82323
LMI
4568 (id (mail-header-id header))
4569 (data (gnus-data-find article))
4570 (thread (gnus-id-to-thread id))
4571 (references (mail-header-references header))
4572 (parent
4573 (gnus-id-to-thread
4574 (or (gnus-parent-id
4575 (when (and references
4576 (not (equal "" references)))
4577 references))
4578 "none")))
c7a91ce1 4579 (inhibit-read-only t)
6748645f 4580 (old (car thread)))
eec82323 4581 (when thread
eec82323 4582 (unless iheader
6748645f
LMI
4583 (setcar thread nil)
4584 (when parent
4585 (delq thread parent)))
4586 (if (gnus-summary-insert-subject id header)
eec82323
LMI
4587 ;; Set the (possibly) new article number in the data structure.
4588 (gnus-data-set-number data (gnus-id-to-article id))
4589 (setcar thread old)
4590 nil))))
4591
6748645f
LMI
4592(defun gnus-rebuild-thread (id &optional line)
4593 "Rebuild the thread containing ID.
4594If LINE, insert the rebuilt thread starting on line LINE."
c7a91ce1 4595 (let ((inhibit-read-only t)
eec82323
LMI
4596 old-pos current thread data)
4597 (if (not gnus-show-threads)
4598 (setq thread (list (car (gnus-id-to-thread id))))
4599 ;; Get the thread this article is part of.
4600 (setq thread (gnus-remove-thread id)))
01c52d31 4601 (setq old-pos (point-at-bol))
eec82323 4602 (setq current (save-excursion
94384150 4603 (and (re-search-backward "[\r\n]" nil t)
eec82323
LMI
4604 (gnus-summary-article-number))))
4605 ;; If this is a gathered thread, we have to go some re-gathering.
4606 (when (stringp (car thread))
4607 (let ((subject (car thread))
4608 roots thr)
4609 (setq thread (cdr thread))
4610 (while thread
4611 (unless (memq (setq thr (gnus-id-to-thread
4612 (gnus-root-id
4613 (mail-header-id (caar thread)))))
4614 roots)
4615 (push thr roots))
4616 (setq thread (cdr thread)))
4617 ;; We now have all (unique) roots.
4618 (if (= (length roots) 1)
4619 ;; All the loose roots are now one solid root.
4620 (setq thread (car roots))
4621 (setq thread (cons subject (gnus-sort-threads roots))))))
4622 (let (threads)
4623 ;; We then insert this thread into the summary buffer.
6748645f
LMI
4624 (when line
4625 (goto-char (point-min))
4626 (forward-line (1- line)))
eec82323
LMI
4627 (let (gnus-newsgroup-data gnus-newsgroup-threads)
4628 (if gnus-show-threads
4629 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
4630 (gnus-summary-prepare-unthreaded thread))
4631 (setq data (nreverse gnus-newsgroup-data))
4632 (setq threads gnus-newsgroup-threads))
4633 ;; We splice the new data into the data structure.
6748645f
LMI
4634 ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
4635 ;;!!! then we want to insert at the beginning of the buffer.
4636 ;;!!! That happens to be true with Gnus now, but that may
4637 ;;!!! change in the future. Perhaps.
4638 (gnus-data-enter-list
4639 (if line nil current) data (- (point) old-pos))
4640 (setq gnus-newsgroup-threads
4641 (nconc threads gnus-newsgroup-threads))
4642 (gnus-data-compute-positions))))
eec82323
LMI
4643
4644(defun gnus-number-to-header (number)
4645 "Return the header for article NUMBER."
4646 (let ((headers gnus-newsgroup-headers))
4647 (while (and headers
4648 (not (= number (mail-header-number (car headers)))))
4649 (pop headers))
4650 (when headers
4651 (car headers))))
4652
6748645f 4653(defun gnus-parent-headers (in-headers &optional generation)
eec82323
LMI
4654 "Return the headers of the GENERATIONeth parent of HEADERS."
4655 (unless generation
4656 (setq generation 1))
a8151ef7 4657 (let ((parent t)
6748645f 4658 (headers in-headers)
a8151ef7 4659 references)
6748645f
LMI
4660 (while (and parent
4661 (not (zerop generation))
4662 (setq references (mail-header-references headers)))
4663 (setq headers (if (and references
4664 (setq parent (gnus-parent-id references)))
4665 (car (gnus-id-to-thread parent))
4666 nil))
4667 (decf generation))
4668 (and (not (eq headers in-headers))
4669 headers)))
eec82323
LMI
4670
4671(defun gnus-id-to-thread (id)
4672 "Return the (sub-)thread where ID appears."
4673 (gnus-gethash id gnus-newsgroup-dependencies))
4674
4675(defun gnus-id-to-article (id)
4676 "Return the article number of ID."
4677 (let ((thread (gnus-id-to-thread id)))
4678 (when (and thread
4679 (car thread))
4680 (mail-header-number (car thread)))))
4681
4682(defun gnus-id-to-header (id)
4683 "Return the article headers of ID."
4684 (car (gnus-id-to-thread id)))
4685
4686(defun gnus-article-displayed-root-p (article)
4687 "Say whether ARTICLE is a root(ish) article."
4688 (let ((level (gnus-summary-thread-level article))
4689 (refs (mail-header-references (gnus-summary-article-header article)))
4690 particle)
4691 (cond
4692 ((null level) nil)
4693 ((zerop level) t)
4694 ((null refs) t)
4695 ((null (gnus-parent-id refs)) t)
4696 ((and (= 1 level)
4697 (null (setq particle (gnus-id-to-article
4698 (gnus-parent-id refs))))
4699 (null (gnus-summary-thread-level particle)))))))
4700
4701(defun gnus-root-id (id)
4702 "Return the id of the root of the thread where ID appears."
4703 (let (last-id prev)
6748645f 4704 (while (and id (setq prev (car (gnus-id-to-thread id))))
eec82323
LMI
4705 (setq last-id id
4706 id (gnus-parent-id (mail-header-references prev))))
4707 last-id))
4708
6748645f
LMI
4709(defun gnus-articles-in-thread (thread)
4710 "Return the list of articles in THREAD."
4711 (cons (mail-header-number (car thread))
4712 (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
4713
eec82323
LMI
4714(defun gnus-remove-thread (id &optional dont-remove)
4715 "Remove the thread that has ID in it."
6748645f 4716 (let (headers thread last-id)
eec82323 4717 ;; First go up in this thread until we find the root.
6748645f
LMI
4718 (setq last-id (gnus-root-id id)
4719 headers (message-flatten-list (gnus-id-to-thread last-id)))
01ccbb85 4720 ;; We have now found the real root of this thread. It might have
eec82323
LMI
4721 ;; been gathered into some loose thread, so we have to search
4722 ;; through the threads to find the thread we wanted.
4723 (let ((threads gnus-newsgroup-threads)
4724 sub)
4725 (while threads
4726 (setq sub (car threads))
4727 (if (stringp (car sub))
4728 ;; This is a gathered thread, so we look at the roots
4729 ;; below it to find whether this article is in this
4730 ;; gathered root.
4731 (progn
4732 (setq sub (cdr sub))
4733 (while sub
4734 (when (member (caar sub) headers)
4735 (setq thread (car threads)
4736 threads nil
4737 sub nil))
4738 (setq sub (cdr sub))))
4739 ;; It's an ordinary thread, so we check it.
4740 (when (eq (car sub) (car headers))
4741 (setq thread sub
4742 threads nil)))
4743 (setq threads (cdr threads)))
4744 ;; If this article is in no thread, then it's a root.
4745 (if thread
4746 (unless dont-remove
4747 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
6748645f 4748 (setq thread (gnus-id-to-thread last-id)))
eec82323
LMI
4749 (when thread
4750 (prog1
4751 thread ; We return this thread.
4752 (unless dont-remove
4753 (if (stringp (car thread))
4754 (progn
4755 ;; If we use dummy roots, then we have to remove the
4756 ;; dummy root as well.
4757 (when (eq gnus-summary-make-false-root 'dummy)
6748645f
LMI
4758 ;; We go to the dummy root by going to
4759 ;; the first sub-"thread", and then one line up.
4760 (gnus-summary-goto-article
4761 (mail-header-number (caadr thread)))
4762 (forward-line -1)
eec82323
LMI
4763 (gnus-delete-line)
4764 (gnus-data-compute-positions))
4765 (setq thread (cdr thread))
4766 (while thread
4767 (gnus-remove-thread-1 (car thread))
4768 (setq thread (cdr thread))))
4769 (gnus-remove-thread-1 thread))))))))
4770
4771(defun gnus-remove-thread-1 (thread)
4772 "Remove the thread THREAD recursively."
4773 (let ((number (mail-header-number (pop thread)))
4774 d)
4775 (setq thread (reverse thread))
4776 (while thread
4777 (gnus-remove-thread-1 (pop thread)))
4778 (when (setq d (gnus-data-find number))
4779 (goto-char (gnus-data-pos d))
16409b0b 4780 (gnus-summary-show-thread)
eec82323
LMI
4781 (gnus-data-remove
4782 number
01c52d31 4783 (- (point-at-bol)
eec82323 4784 (prog1
01c52d31 4785 (1+ (point-at-eol))
eec82323
LMI
4786 (gnus-delete-line)))))))
4787
4921bbdd 4788(defun gnus-sort-threads-recursive (threads func)
16409b0b
GM
4789 (sort (mapcar (lambda (thread)
4790 (cons (car thread)
4791 (and (cdr thread)
4921bbdd 4792 (gnus-sort-threads-recursive (cdr thread) func))))
16409b0b
GM
4793 threads) func))
4794
4921bbdd
CY
4795(defun gnus-sort-threads-loop (threads func)
4796 (let* ((superthread (cons nil threads))
4797 (stack (list (cons superthread threads)))
4798 remaining-threads thread)
4799 (while stack
4800 (setq remaining-threads (cdr (car stack)))
4801 (if remaining-threads
4802 (progn (setq thread (car remaining-threads))
4803 (setcdr (car stack) (cdr remaining-threads))
4804 (if (cdr thread)
4805 (push (cons thread (cdr thread)) stack)))
4806 (setq thread (caar stack))
4807 (setcdr thread (sort (cdr thread) func))
4808 (pop stack)))
4809 (cdr superthread)))
4810
eec82323
LMI
4811(defun gnus-sort-threads (threads)
4812 "Sort THREADS."
4813 (if (not gnus-thread-sort-functions)
4814 threads
6748645f 4815 (gnus-message 8 "Sorting threads...")
4921bbdd
CY
4816 (prog1
4817 (condition-case nil
4818 (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
4819 (gnus-sort-threads-recursive
4820 threads (gnus-make-sort-function gnus-thread-sort-functions)))
4821 ;; Even after binding max-lisp-eval-depth, the recursive
4822 ;; sorter might fail for very long threads. In that case,
4823 ;; try using a (less well-tested) non-recursive sorter.
3d6e7a43
KY
4824 (error (gnus-message 9 "Sorting threads with loop...")
4825 (gnus-sort-threads-loop
4921bbdd
CY
4826 threads (gnus-make-sort-function
4827 gnus-thread-sort-functions))))
4828 (gnus-message 8 "Sorting threads...done"))))
eec82323
LMI
4829
4830(defun gnus-sort-articles (articles)
4831 "Sort ARTICLES."
4832 (when gnus-article-sort-functions
4833 (gnus-message 7 "Sorting articles...")
4834 (prog1
4835 (setq gnus-newsgroup-headers
4836 (sort articles (gnus-make-sort-function
4837 gnus-article-sort-functions)))
4838 (gnus-message 7 "Sorting articles...done"))))
4839
4840;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
4841(defmacro gnus-thread-header (thread)
16409b0b
GM
4842 "Return header of first article in THREAD.
4843Note that THREAD must never, ever be anything else than a variable -
4844using some other form will lead to serious barfage."
eec82323
LMI
4845 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
4846 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
16409b0b 4847 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207"
eec82323
LMI
4848 (vector thread) 2))
4849
4850(defsubst gnus-article-sort-by-number (h1 h2)
4851 "Sort articles by article number."
4852 (< (mail-header-number h1)
4853 (mail-header-number h2)))
4854
4855(defun gnus-thread-sort-by-number (h1 h2)
4856 "Sort threads by root article number."
4857 (gnus-article-sort-by-number
4858 (gnus-thread-header h1) (gnus-thread-header h2)))
4859
23f87bed 4860(defsubst gnus-article-sort-by-random (h1 h2)
0b6799c3 4861 "Sort articles randomly."
23f87bed
MB
4862 (zerop (random 2)))
4863
4864(defun gnus-thread-sort-by-random (h1 h2)
0b6799c3 4865 "Sort threads randomly."
23f87bed
MB
4866 (gnus-article-sort-by-random
4867 (gnus-thread-header h1) (gnus-thread-header h2)))
4868
eec82323
LMI
4869(defsubst gnus-article-sort-by-lines (h1 h2)
4870 "Sort articles by article Lines header."
4871 (< (mail-header-lines h1)
4872 (mail-header-lines h2)))
4873
4874(defun gnus-thread-sort-by-lines (h1 h2)
4875 "Sort threads by root article Lines header."
4876 (gnus-article-sort-by-lines
4877 (gnus-thread-header h1) (gnus-thread-header h2)))
4878
16409b0b
GM
4879(defsubst gnus-article-sort-by-chars (h1 h2)
4880 "Sort articles by octet length."
4881 (< (mail-header-chars h1)
4882 (mail-header-chars h2)))
4883
4884(defun gnus-thread-sort-by-chars (h1 h2)
4885 "Sort threads by root article octet length."
4886 (gnus-article-sort-by-chars
4887 (gnus-thread-header h1) (gnus-thread-header h2)))
4888
eec82323
LMI
4889(defsubst gnus-article-sort-by-author (h1 h2)
4890 "Sort articles by root author."
b4fde39f 4891 (gnus-string<
eec82323
LMI
4892 (let ((extract (funcall
4893 gnus-extract-address-components
4894 (mail-header-from h1))))
4895 (or (car extract) (cadr extract) ""))
4896 (let ((extract (funcall
4897 gnus-extract-address-components
4898 (mail-header-from h2))))
4899 (or (car extract) (cadr extract) ""))))
4900
4901(defun gnus-thread-sort-by-author (h1 h2)
4902 "Sort threads by root author."
4903 (gnus-article-sort-by-author
4904 (gnus-thread-header h1) (gnus-thread-header h2)))
4905
01c52d31
MB
4906(defsubst gnus-article-sort-by-recipient (h1 h2)
4907 "Sort articles by recipient."
4908 (gnus-string<
4909 (let ((extract (funcall
4910 gnus-extract-address-components
4911 (or (cdr (assq 'To (mail-header-extra h1))) ""))))
4912 (or (car extract) (cadr extract)))
4913 (let ((extract (funcall
4914 gnus-extract-address-components
4915 (or (cdr (assq 'To (mail-header-extra h2))) ""))))
4916 (or (car extract) (cadr extract)))))
4917
4918(defun gnus-thread-sort-by-recipient (h1 h2)
4919 "Sort threads by root recipient."
4920 (gnus-article-sort-by-recipient
4921 (gnus-thread-header h1) (gnus-thread-header h2)))
4922
eec82323
LMI
4923(defsubst gnus-article-sort-by-subject (h1 h2)
4924 "Sort articles by root subject."
b4fde39f 4925 (gnus-string<
eec82323
LMI
4926 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
4927 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
4928
4929(defun gnus-thread-sort-by-subject (h1 h2)
4930 "Sort threads by root subject."
4931 (gnus-article-sort-by-subject
4932 (gnus-thread-header h1) (gnus-thread-header h2)))
4933
4934(defsubst gnus-article-sort-by-date (h1 h2)
4935 "Sort articles by root article date."
16409b0b 4936 (time-less-p
eec82323
LMI
4937 (gnus-date-get-time (mail-header-date h1))
4938 (gnus-date-get-time (mail-header-date h2))))
4939
4940(defun gnus-thread-sort-by-date (h1 h2)
4941 "Sort threads by root article date."
4942 (gnus-article-sort-by-date
4943 (gnus-thread-header h1) (gnus-thread-header h2)))
4944
4945(defsubst gnus-article-sort-by-score (h1 h2)
4946 "Sort articles by root article score.
4947Unscored articles will be counted as having a score of zero."
4948 (> (or (cdr (assq (mail-header-number h1)
4949 gnus-newsgroup-scored))
4950 gnus-summary-default-score 0)
4951 (or (cdr (assq (mail-header-number h2)
4952 gnus-newsgroup-scored))
4953 gnus-summary-default-score 0)))
4954
4955(defun gnus-thread-sort-by-score (h1 h2)
4956 "Sort threads by root article score."
4957 (gnus-article-sort-by-score
4958 (gnus-thread-header h1) (gnus-thread-header h2)))
4959
4960(defun gnus-thread-sort-by-total-score (h1 h2)
4961 "Sort threads by the sum of all scores in the thread.
4962Unscored articles will be counted as having a score of zero."
4963 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
4964
4965(defun gnus-thread-total-score (thread)
16409b0b 4966 ;; This function find the total score of THREAD.
23f87bed
MB
4967 (cond
4968 ((null thread)
4969 0)
4970 ((consp thread)
4971 (if (stringp (car thread))
4972 (apply gnus-thread-score-function 0
4973 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
4974 (gnus-thread-total-score-1 thread)))
4975 (t
4976 (gnus-thread-total-score-1 (list thread)))))
4977
4978(defun gnus-thread-sort-by-most-recent-number (h1 h2)
4979 "Sort threads such that the thread with the most recently arrived article comes first."
4980 (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
4981
4982(defun gnus-thread-highest-number (thread)
4983 "Return the highest article number in THREAD."
4984 (apply 'max (mapcar (lambda (header)
4985 (mail-header-number header))
4986 (message-flatten-list thread))))
4987
4988(defun gnus-thread-sort-by-most-recent-date (h1 h2)
4989 "Sort threads such that the thread with the most recently dated article comes first."
4990 (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
4991
3d6e7a43
KY
4992; Since this is called not only to sort the top-level threads, but
4993; also in recursive sorts to order the articles within a thread, each
4994; article will be processed many times. Thus it speeds things up
4995; quite a bit to use gnus-date-get-time, which caches the time value.
23f87bed
MB
4996(defun gnus-thread-latest-date (thread)
4997 "Return the highest article date in THREAD."
3d6e7a43
KY
4998 (apply 'max
4999 (mapcar (lambda (header) (gnus-float-time
5000 (gnus-date-get-time
5001 (mail-header-date header))))
5002 (message-flatten-list thread))))
eec82323
LMI
5003
5004(defun gnus-thread-total-score-1 (root)
5005 ;; This function find the total score of the thread below ROOT.
5006 (setq root (car root))
5007 (apply gnus-thread-score-function
5008 (or (append
5009 (mapcar 'gnus-thread-total-score
6748645f 5010 (cdr (gnus-id-to-thread (mail-header-id root))))
eec82323
LMI
5011 (when (> (mail-header-number root) 0)
5012 (list (or (cdr (assq (mail-header-number root)
5013 gnus-newsgroup-scored))
5014 gnus-summary-default-score 0))))
5015 (list gnus-summary-default-score)
5016 '(0))))
5017
5018;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
5019(defvar gnus-tmp-prev-subject nil)
5020(defvar gnus-tmp-false-parent nil)
5021(defvar gnus-tmp-root-expunged nil)
5022(defvar gnus-tmp-dummy-line nil)
5023
16409b0b
GM
5024(defun gnus-extra-header (type &optional header)
5025 "Return the extra header of TYPE."
5026 (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
5027 ""))
5028
23f87bed
MB
5029(defvar gnus-tmp-thread-tree-header-string "")
5030
5031(defcustom gnus-sum-thread-tree-root "> "
5032 "With %B spec, used for the root of a thread.
5033If nil, use subject instead."
bf247b6e 5034 :version "22.1"
ad136a7c 5035 :type '(radio (const :format "%v " nil) string)
23f87bed 5036 :group 'gnus-thread)
01c52d31 5037
23f87bed
MB
5038(defcustom gnus-sum-thread-tree-false-root "> "
5039 "With %B spec, used for a false root of a thread.
5040If nil, use subject instead."
bf247b6e 5041 :version "22.1"
ad136a7c 5042 :type '(radio (const :format "%v " nil) string)
23f87bed 5043 :group 'gnus-thread)
01c52d31 5044
23f87bed
MB
5045(defcustom gnus-sum-thread-tree-single-indent ""
5046 "With %B spec, used for a thread with just one message.
5047If nil, use subject instead."
bf247b6e 5048 :version "22.1"
ad136a7c 5049 :type '(radio (const :format "%v " nil) string)
23f87bed 5050 :group 'gnus-thread)
01c52d31 5051
23f87bed
MB
5052(defcustom gnus-sum-thread-tree-vertical "| "
5053 "With %B spec, used for drawing a vertical line."
bf247b6e 5054 :version "22.1"
23f87bed
MB
5055 :type 'string
5056 :group 'gnus-thread)
01c52d31 5057
23f87bed
MB
5058(defcustom gnus-sum-thread-tree-indent " "
5059 "With %B spec, used for indenting."
bf247b6e 5060 :version "22.1"
23f87bed
MB
5061 :type 'string
5062 :group 'gnus-thread)
01c52d31 5063
23f87bed
MB
5064(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
5065 "With %B spec, used for a leaf with brothers."
bf247b6e 5066 :version "22.1"
23f87bed
MB
5067 :type 'string
5068 :group 'gnus-thread)
01c52d31 5069
23f87bed
MB
5070(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
5071 "With %B spec, used for a leaf without brothers."
bf247b6e 5072 :version "22.1"
23f87bed
MB
5073 :type 'string
5074 :group 'gnus-thread)
5075
1fc34624
GM
5076(defcustom gnus-summary-display-while-building nil
5077 "If non-nil, show and update the summary buffer as it's being built.
5078If the value is t, update the buffer after every line is inserted. If
5079the value is an integer (N), update the display every N lines."
5080 :version "22.1"
5081 :group 'gnus-thread
5082 :type '(choice (const :tag "off" nil)
5083 number
5084 (const :tag "frequently" t)))
5085
eec82323
LMI
5086(defun gnus-summary-prepare-threads (threads)
5087 "Prepare summary buffer from THREADS and indentation LEVEL.
5088THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
5089or a straight list of headers."
5090 (gnus-message 7 "Generating summary...")
5091
5092 (setq gnus-newsgroup-threads threads)
5093 (beginning-of-line)
5094
5095 (let ((gnus-tmp-level 0)
5096 (default-score (or gnus-summary-default-score 0))
5097 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
23f87bed
MB
5098 (building-line-count gnus-summary-display-while-building)
5099 (building-count (integerp gnus-summary-display-while-building))
eec82323 5100 thread number subject stack state gnus-tmp-gathered beg-match
23f87bed
MB
5101 new-roots gnus-tmp-new-adopts thread-end simp-subject
5102 gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
eec82323
LMI
5103 gnus-tmp-replied gnus-tmp-subject-or-nil
5104 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
5105 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
23f87bed
MB
5106 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
5107 tree-stack)
eec82323 5108
23f87bed
MB
5109 (setq gnus-tmp-prev-subject nil
5110 gnus-tmp-thread-tree-header-string "")
eec82323
LMI
5111
5112 (if (vectorp (car threads))
5113 ;; If this is a straight (sic) list of headers, then a
5114 ;; threaded summary display isn't required, so we just create
5115 ;; an unthreaded one.
5116 (gnus-summary-prepare-unthreaded threads)
5117
5118 ;; Do the threaded display.
5119
23f87bed
MB
5120 (if gnus-summary-display-while-building
5121 (switch-to-buffer (buffer-name)))
eec82323
LMI
5122 (while (or threads stack gnus-tmp-new-adopts new-roots)
5123
5124 (if (and (= gnus-tmp-level 0)
eec82323
LMI
5125 (or (not stack)
5126 (= (caar stack) 0))
5127 (not gnus-tmp-false-parent)
5128 (or gnus-tmp-new-adopts new-roots))
5129 (if gnus-tmp-new-adopts
5130 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
5131 thread (list (car gnus-tmp-new-adopts))
5132 gnus-tmp-header (caar thread)
5133 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
5134 (when new-roots
5135 (setq thread (list (car new-roots))
5136 gnus-tmp-header (caar thread)
5137 new-roots (cdr new-roots))))
5138
5139 (if threads
5140 ;; If there are some threads, we do them before the
5141 ;; threads on the stack.
5142 (setq thread threads
5143 gnus-tmp-header (caar thread))
5144 ;; There were no current threads, so we pop something off
5145 ;; the stack.
5146 (setq state (car stack)
5147 gnus-tmp-level (car state)
23f87bed
MB
5148 tree-stack (cadr state)
5149 thread (caddr state)
eec82323
LMI
5150 stack (cdr stack)
5151 gnus-tmp-header (caar thread))))
5152
5153 (setq gnus-tmp-false-parent nil)
5154 (setq gnus-tmp-root-expunged nil)
5155 (setq thread-end nil)
5156
5157 (if (stringp gnus-tmp-header)
5158 ;; The header is a dummy root.
5159 (cond
5160 ((eq gnus-summary-make-false-root 'adopt)
5161 ;; We let the first article adopt the rest.
5162 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
5163 (cddar thread)))
5164 (setq gnus-tmp-gathered
5165 (nconc (mapcar
5166 (lambda (h) (mail-header-number (car h)))
5167 (cddar thread))
5168 gnus-tmp-gathered))
5169 (setq thread (cons (list (caar thread)
5170 (cadar thread))
5171 (cdr thread)))
5172 (setq gnus-tmp-level -1
5173 gnus-tmp-false-parent t))
5174 ((eq gnus-summary-make-false-root 'empty)
5175 ;; We print adopted articles with empty subject fields.
5176 (setq gnus-tmp-gathered
5177 (nconc (mapcar
5178 (lambda (h) (mail-header-number (car h)))
5179 (cddar thread))
5180 gnus-tmp-gathered))
5181 (setq gnus-tmp-level -1))
5182 ((eq gnus-summary-make-false-root 'dummy)
5183 ;; We remember that we probably want to output a dummy
5184 ;; root.
5185 (setq gnus-tmp-dummy-line gnus-tmp-header)
5186 (setq gnus-tmp-prev-subject gnus-tmp-header))
5187 (t
5188 ;; We do not make a root for the gathered
5189 ;; sub-threads at all.
5190 (setq gnus-tmp-level -1)))
5191
5192 (setq number (mail-header-number gnus-tmp-header)
23f87bed
MB
5193 subject (mail-header-subject gnus-tmp-header)
5194 simp-subject (gnus-simplify-subject-fully subject))
eec82323
LMI
5195
5196 (cond
5197 ;; If the thread has changed subject, we might want to make
5198 ;; this subthread into a root.
5199 ((and (null gnus-thread-ignore-subject)
5200 (not (zerop gnus-tmp-level))
5201 gnus-tmp-prev-subject
23f87bed 5202 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5203 (setq new-roots (nconc new-roots (list (car thread)))
5204 thread-end t
5205 gnus-tmp-header nil))
5206 ;; If the article lies outside the current limit,
5207 ;; then we do not display it.
5208 ((not (memq number gnus-newsgroup-limit))
5209 (setq gnus-tmp-gathered
5210 (nconc (mapcar
5211 (lambda (h) (mail-header-number (car h)))
5212 (cdar thread))
5213 gnus-tmp-gathered))
5214 (setq gnus-tmp-new-adopts (if (cdar thread)
5215 (append gnus-tmp-new-adopts
5216 (cdar thread))
5217 gnus-tmp-new-adopts)
5218 thread-end t
5219 gnus-tmp-header nil)
5220 (when (zerop gnus-tmp-level)
5221 (setq gnus-tmp-root-expunged t)))
5222 ;; Perhaps this article is to be marked as read?
5223 ((and gnus-summary-mark-below
5224 (< (or (cdr (assq number gnus-newsgroup-scored))
5225 default-score)
5226 gnus-summary-mark-below)
5227 ;; Don't touch sparse articles.
5228 (not (gnus-summary-article-sparse-p number))
5229 (not (gnus-summary-article-ancient-p number)))
5230 (setq gnus-newsgroup-unreads
5231 (delq number gnus-newsgroup-unreads))
5232 (if gnus-newsgroup-auto-expire
23f87bed
MB
5233 (setq gnus-newsgroup-expirable
5234 (gnus-add-to-sorted-list
5235 gnus-newsgroup-expirable number))
eec82323
LMI
5236 (push (cons number gnus-low-score-mark)
5237 gnus-newsgroup-reads))))
5238
5239 (when gnus-tmp-header
5240 ;; We may have an old dummy line to output before this
5241 ;; article.
6748645f
LMI
5242 (when (and gnus-tmp-dummy-line
5243 (gnus-subject-equal
5244 gnus-tmp-dummy-line
5245 (mail-header-subject gnus-tmp-header)))
eec82323
LMI
5246 (gnus-summary-insert-dummy-line
5247 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
5248 (setq gnus-tmp-dummy-line nil))
5249
5250 ;; Compute the mark.
5251 (setq gnus-tmp-unread (gnus-article-mark number))
5252
5253 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
5254 gnus-tmp-header gnus-tmp-level)
5255 gnus-newsgroup-data)
5256
5257 ;; Actually insert the line.
5258 (setq
5259 gnus-tmp-subject-or-nil
5260 (cond
5261 ((and gnus-thread-ignore-subject
5262 gnus-tmp-prev-subject
23f87bed 5263 (not (string= gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5264 subject)
5265 ((zerop gnus-tmp-level)
5266 (if (and (eq gnus-summary-make-false-root 'empty)
5267 (memq number gnus-tmp-gathered)
5268 gnus-tmp-prev-subject
23f87bed 5269 (string= gnus-tmp-prev-subject simp-subject))
eec82323
LMI
5270 gnus-summary-same-subject
5271 subject))
5272 (t gnus-summary-same-subject)))
5273 (if (and (eq gnus-summary-make-false-root 'adopt)
5274 (= gnus-tmp-level 1)
5275 (memq number gnus-tmp-gathered))
5276 (setq gnus-tmp-opening-bracket ?\<
5277 gnus-tmp-closing-bracket ?\>)
5278 (setq gnus-tmp-opening-bracket ?\[
5279 gnus-tmp-closing-bracket ?\]))
4921bbdd
CY
5280 (if (>= gnus-tmp-level (length gnus-thread-indent-array))
5281 (gnus-make-thread-indent-array
5282 (max (* 2 (length gnus-thread-indent-array))
5283 gnus-tmp-level)))
eec82323
LMI
5284 (setq
5285 gnus-tmp-indentation
5286 (aref gnus-thread-indent-array gnus-tmp-level)
5287 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
5288 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
5289 gnus-summary-default-score 0)
5290 gnus-tmp-score-char
5291 (if (or (null gnus-summary-default-score)
5292 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
5293 gnus-summary-zcore-fuzz))
23f87bed 5294 ? ;Whitespace
eec82323
LMI
5295 (if (< gnus-tmp-score gnus-summary-default-score)
5296 gnus-score-below-mark gnus-score-over-mark))
5297 gnus-tmp-replied
5298 (cond ((memq number gnus-newsgroup-processable)
5299 gnus-process-mark)
5300 ((memq number gnus-newsgroup-cached)
5301 gnus-cached-mark)
5302 ((memq number gnus-newsgroup-replied)
5303 gnus-replied-mark)
23f87bed
MB
5304 ((memq number gnus-newsgroup-forwarded)
5305 gnus-forwarded-mark)
eec82323
LMI
5306 ((memq number gnus-newsgroup-saved)
5307 gnus-saved-mark)
23f87bed
MB
5308 ((memq number gnus-newsgroup-recent)
5309 gnus-recent-mark)
5310 ((memq number gnus-newsgroup-unseen)
5311 gnus-unseen-mark)
5312 (t gnus-no-mark))
5313 gnus-tmp-downloaded
5314 (cond ((memq number gnus-newsgroup-undownloaded)
5315 gnus-undownloaded-mark)
5316 (gnus-newsgroup-agentized
5317 gnus-downloaded-mark)
5318 (t
5319 gnus-no-mark))
eec82323
LMI
5320 gnus-tmp-from (mail-header-from gnus-tmp-header)
5321 gnus-tmp-name
5322 (cond
5323 ((string-match "<[^>]+> *$" gnus-tmp-from)
5324 (setq beg-match (match-beginning 0))
23f87bed
MB
5325 (or (and (string-match "^\".+\"" gnus-tmp-from)
5326 (substring gnus-tmp-from 1 (1- (match-end 0))))
eec82323
LMI
5327 (substring gnus-tmp-from 0 beg-match)))
5328 ((string-match "(.+)" gnus-tmp-from)
5329 (substring gnus-tmp-from
5330 (1+ (match-beginning 0)) (1- (match-end 0))))
23f87bed
MB
5331 (t gnus-tmp-from))
5332
5333 ;; Do the %B string
5334 gnus-tmp-thread-tree-header-string
5335 (cond
5336 ((not gnus-show-threads) "")
5337 ((zerop gnus-tmp-level)
5338 (cond ((cdar thread)
5339 (or gnus-sum-thread-tree-root subject))
5340 (gnus-tmp-new-adopts
5341 (or gnus-sum-thread-tree-false-root subject))
5342 (t
5343 (or gnus-sum-thread-tree-single-indent subject))))
5344 (t
5345 (concat (apply 'concat
5346 (mapcar (lambda (item)
5347 (if (= item 1)
5348 gnus-sum-thread-tree-vertical
5349 gnus-sum-thread-tree-indent))
5350 (cdr (reverse tree-stack))))
5351 (if (nth 1 thread)
5352 gnus-sum-thread-tree-leaf-with-other
5353 gnus-sum-thread-tree-single-leaf)))))
eec82323
LMI
5354 (when (string= gnus-tmp-name "")
5355 (setq gnus-tmp-name gnus-tmp-from))
5356 (unless (numberp gnus-tmp-lines)
23f87bed
MB
5357 (setq gnus-tmp-lines -1))
5358 (if (= gnus-tmp-lines -1)
5359 (setq gnus-tmp-lines "?")
5360 (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
5361 (gnus-put-text-property
64763fe3
MB
5362 (point)
5363 (progn (eval gnus-summary-line-format-spec) (point))
23f87bed 5364 'gnus-number number)
64763fe3
MB
5365 (when gnus-visual-p
5366 (forward-line -1)
a9ec34f4
LMI
5367 (gnus-summary-highlight-line)
5368 (when gnus-summary-update-hook
5369 (gnus-run-hooks 'gnus-summary-update-hook))
64763fe3 5370 (forward-line 1))
eec82323 5371
64763fe3 5372 (setq gnus-tmp-prev-subject simp-subject)))
eec82323
LMI
5373
5374 (when (nth 1 thread)
23f87bed
MB
5375 (push (list (max 0 gnus-tmp-level)
5376 (copy-sequence tree-stack)
5377 (nthcdr 1 thread))
5378 stack))
5379 (push (if (nth 1 thread) 1 0) tree-stack)
eec82323
LMI
5380 (incf gnus-tmp-level)
5381 (setq threads (if thread-end nil (cdar thread)))
23f87bed
MB
5382 (if gnus-summary-display-while-building
5383 (if building-count
5384 (progn
5385 ;; use a set frequency
5386 (setq building-line-count (1- building-line-count))
5387 (when (= building-line-count 0)
5388 (sit-for 0)
5389 (setq building-line-count
5390 gnus-summary-display-while-building)))
5391 ;; always
5392 (sit-for 0)))
eec82323
LMI
5393 (unless threads
5394 (setq gnus-tmp-level 0)))))
5395 (gnus-message 7 "Generating summary...done"))
5396
5397(defun gnus-summary-prepare-unthreaded (headers)
5398 "Generate an unthreaded summary buffer based on HEADERS."
5399 (let (header number mark)
5400
5401 (beginning-of-line)
5402
5403 (while headers
5404 ;; We may have to root out some bad articles...
5405 (when (memq (setq number (mail-header-number
5406 (setq header (pop headers))))
5407 gnus-newsgroup-limit)
5408 ;; Mark article as read when it has a low score.
5409 (when (and gnus-summary-mark-below
5410 (< (or (cdr (assq number gnus-newsgroup-scored))
5411 gnus-summary-default-score 0)
5412 gnus-summary-mark-below)
5413 (not (gnus-summary-article-ancient-p number)))
5414 (setq gnus-newsgroup-unreads
5415 (delq number gnus-newsgroup-unreads))
5416 (if gnus-newsgroup-auto-expire
5417 (push number gnus-newsgroup-expirable)
5418 (push (cons number gnus-low-score-mark)
5419 gnus-newsgroup-reads)))
5420
5421 (setq mark (gnus-article-mark number))
5422 (push (gnus-data-make number mark (1+ (point)) header 0)
5423 gnus-newsgroup-data)
5424 (gnus-summary-insert-line
5425 header 0 number
23f87bed 5426 (memq number gnus-newsgroup-undownloaded)
eec82323
LMI
5427 mark (memq number gnus-newsgroup-replied)
5428 (memq number gnus-newsgroup-expirable)
5429 (mail-header-subject header) nil
5430 (cdr (assq number gnus-newsgroup-scored))
5431 (memq number gnus-newsgroup-processable))))))
5432
16409b0b
GM
5433(defun gnus-summary-remove-list-identifiers ()
5434 "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
23f87bed
MB
5435 (let ((regexp (if (consp gnus-list-identifiers)
5436 (mapconcat 'identity gnus-list-identifiers " *\\|")
5437 gnus-list-identifiers))
5438 changed subject)
5439 (when regexp
01c52d31 5440 (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
23f87bed
MB
5441 (dolist (header gnus-newsgroup-headers)
5442 (setq subject (mail-header-subject header)
5443 changed nil)
01c52d31 5444 (while (string-match regexp subject)
23f87bed 5445 (setq subject
01c52d31 5446 (concat (substring subject 0 (match-beginning 1))
23f87bed
MB
5447 (substring subject (match-end 0)))
5448 changed t))
23f87bed 5449 (when changed
01c52d31
MB
5450 (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
5451 (setq subject
5452 (concat (substring subject 0 (match-beginning 1))
5453 (substring subject (match-end 1)))))
23f87bed
MB
5454 (mail-header-set-subject header subject))))))
5455
5456(defun gnus-fetch-headers (articles)
5457 "Fetch headers of ARTICLES."
5458 (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
5459 (gnus-message 5 "Fetching headers for %s..." name)
5460 (prog1
5461 (if (eq 'nov
5462 (setq gnus-headers-retrieved-by
5463 (gnus-retrieve-headers
5464 articles gnus-newsgroup-name
5465 ;; We might want to fetch old headers, but
5466 ;; not if there is only 1 article.
5467 (and (or (and
5468 (not (eq gnus-fetch-old-headers 'some))
5469 (not (numberp gnus-fetch-old-headers)))
5470 (> (length articles) 1))
5471 gnus-fetch-old-headers))))
5472 (gnus-get-newsgroup-headers-xover
5473 articles nil nil gnus-newsgroup-name t)
5474 (gnus-get-newsgroup-headers))
5475 (gnus-message 5 "Fetching headers for %s...done" name))))
16409b0b 5476
6748645f 5477(defun gnus-select-newsgroup (group &optional read-all select-articles)
eec82323 5478 "Select newsgroup GROUP.
6748645f
LMI
5479If READ-ALL is non-nil, all articles in the group are selected.
5480If SELECT-ARTICLES, only select those articles from GROUP."
01c52d31 5481 (let* ((entry (gnus-group-entry group))
eec82323
LMI
5482 ;;!!! Dirty hack; should be removed.
5483 (gnus-summary-ignore-duplicates
23f87bed 5484 (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
eec82323
LMI
5485 t
5486 gnus-summary-ignore-duplicates))
5487 (info (nth 2 entry))
01c52d31 5488 charset articles fetched-articles cached)
eec82323
LMI
5489
5490 (unless (gnus-check-server
475e0e0c
GM
5491 (set (make-local-variable 'gnus-current-select-method)
5492 (gnus-find-method-for-group group)))
eec82323 5493 (error "Couldn't open server"))
01c52d31 5494 (setq charset (gnus-group-name-charset gnus-current-select-method group))
eec82323
LMI
5495
5496 (or (and entry (not (eq (car entry) t))) ; Either it's active...
5497 (gnus-activate-group group) ; Or we can activate it...
5498 (progn ; Or we bug out.
5499 (when (equal major-mode 'gnus-summary-mode)
23f87bed 5500 (gnus-kill-buffer (current-buffer)))
01c52d31
MB
5501 (error
5502 "Couldn't activate group %s: %s"
5503 (mm-decode-coding-string group charset)
5504 (mm-decode-coding-string (gnus-status-message group) charset))))
eec82323
LMI
5505
5506 (unless (gnus-request-group group t)
20a673b2
KY
5507 (when (equal major-mode 'gnus-summary-mode)
5508 (gnus-kill-buffer (current-buffer)))
5509 (error "Couldn't request group %s: %s"
5510 (mm-decode-coding-string group charset)
5511 (mm-decode-coding-string (gnus-status-message group) charset)))
eec82323 5512
23f87bed 5513 (when gnus-agent
54506618 5514 (gnus-agent-possibly-alter-active group (gnus-active group) info)
132cf96d 5515
23f87bed
MB
5516 (setq gnus-summary-use-undownloaded-faces
5517 (gnus-agent-find-parameter
5518 group
5519 'agent-enable-undownloaded-faces)))
5520
5521 (setq gnus-newsgroup-name group
5522 gnus-newsgroup-unselected nil
5523 gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
5524
5525 (let ((display (gnus-group-find-parameter group 'display)))
5526 (setq gnus-newsgroup-display
5527 (cond
5528 ((not (zerop (or (car-safe read-all) 0)))
5529 ;; The user entered the group with C-u SPC/RET, let's show
5530 ;; all articles.
5531 'gnus-not-ignore)
5532 ((eq display 'all)
5533 'gnus-not-ignore)
5534 ((arrayp display)
5535 (gnus-summary-display-make-predicate (mapcar 'identity display)))
5536 ((numberp display)
5537 ;; The following is probably the "correct" solution, but
5538 ;; it makes Gnus fetch all headers and then limit the
5539 ;; articles (which is slow), so instead we hack the
5540 ;; select-articles parameter instead. -- Simon Josefsson
5541 ;; <jas@kth.se>
5542 ;;
5543 ;; (gnus-byte-compile
5544 ;; `(lambda () (> number ,(- (cdr (gnus-active group))
5545 ;; display)))))
5546 (setq select-articles
5547 (gnus-uncompress-range
5548 (cons (let ((tmp (- (cdr (gnus-active group)) display)))
5549 (if (> tmp 0)
5550 tmp
5551 1))
5552 (cdr (gnus-active group)))))
5553 nil)
5554 (t
5555 nil))))
eec82323 5556
23f87bed 5557 (gnus-summary-setup-default-charset)
eec82323
LMI
5558
5559 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5560 (when (gnus-virtual-group-p group)
5561 (setq cached gnus-newsgroup-cached))
5562
5563 (setq gnus-newsgroup-unreads
23f87bed
MB
5564 (gnus-sorted-ndifference
5565 (gnus-sorted-ndifference gnus-newsgroup-unreads
5566 gnus-newsgroup-marked)
eec82323
LMI
5567 gnus-newsgroup-dormant))
5568
5569 (setq gnus-newsgroup-processable nil)
5570
5571 (gnus-update-read-articles group gnus-newsgroup-unreads)
eec82323 5572
23f87bed
MB
5573 ;; Adjust and set lists of article marks.
5574 (when info
5575 (gnus-adjust-marked-articles info))
6748645f
LMI
5576 (if (setq articles select-articles)
5577 (setq gnus-newsgroup-unselected
23f87bed 5578 (gnus-sorted-difference gnus-newsgroup-unreads articles))
6748645f 5579 (setq articles (gnus-articles-to-read group read-all)))
eec82323
LMI
5580
5581 (cond
5582 ((null articles)
5583 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
5584 'quit)
5585 ((eq articles 0) nil)
5586 (t
5587 ;; Init the dependencies hash table.
5588 (setq gnus-newsgroup-dependencies
5589 (gnus-make-hashtable (length articles)))
16409b0b 5590 (gnus-set-global-variables)
eec82323 5591 ;; Retrieve the headers and read them in.
23f87bed
MB
5592
5593 (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
eec82323
LMI
5594
5595 ;; Kludge to avoid having cached articles nixed out in virtual groups.
5596 (when cached
5597 (setq gnus-newsgroup-cached cached))
5598
5599 ;; Suppress duplicates?
5600 (when gnus-suppress-duplicates
5601 (gnus-dup-suppress-articles))
5602
5603 ;; Set the initial limit.
5604 (setq gnus-newsgroup-limit (copy-sequence articles))
5605 ;; Remove canceled articles from the list of unread articles.
23f87bed
MB
5606 (setq fetched-articles
5607 (mapcar (lambda (headers) (mail-header-number headers))
5608 gnus-newsgroup-headers))
5609 (setq gnus-newsgroup-articles fetched-articles)
eec82323 5610 (setq gnus-newsgroup-unreads
23f87bed
MB
5611 (gnus-sorted-nintersection
5612 gnus-newsgroup-unreads fetched-articles))
5613 (gnus-compute-unseen-list)
5614
eec82323
LMI
5615 ;; Removed marked articles that do not exist.
5616 (gnus-update-missing-marks
23f87bed 5617 (gnus-sorted-difference articles fetched-articles))
eec82323 5618 ;; We might want to build some more threads first.
6748645f
LMI
5619 (when (and gnus-fetch-old-headers
5620 (eq gnus-headers-retrieved-by 'nov))
5621 (if (eq gnus-fetch-old-headers 'invisible)
5622 (gnus-build-all-threads)
5623 (gnus-build-old-threads)))
5624 ;; Let the Gnus agent mark articles as read.
5625 (when gnus-agent
5626 (gnus-agent-get-undownloaded-list))
16409b0b
GM
5627 ;; Remove list identifiers from subject
5628 (when gnus-list-identifiers
5629 (gnus-summary-remove-list-identifiers))
eec82323
LMI
5630 ;; Check whether auto-expire is to be done in this group.
5631 (setq gnus-newsgroup-auto-expire
5632 (gnus-group-auto-expirable-p group))
5633 ;; Set up the article buffer now, if necessary.
01c52d31
MB
5634 (unless (and gnus-single-article-buffer
5635 (equal gnus-article-buffer "*Article*"))
eec82323
LMI
5636 (gnus-article-setup-buffer))
5637 ;; First and last article in this newsgroup.
5638 (when gnus-newsgroup-headers
5639 (setq gnus-newsgroup-begin
5640 (mail-header-number (car gnus-newsgroup-headers))
5641 gnus-newsgroup-end
5642 (mail-header-number
5643 (gnus-last-element gnus-newsgroup-headers))))
5644 ;; GROUP is successfully selected.
5645 (or gnus-newsgroup-headers t)))))
5646
23f87bed
MB
5647(defun gnus-compute-unseen-list ()
5648 ;; The `seen' marks are treated specially.
5649 (if (not gnus-newsgroup-seen)
5650 (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
5651 (setq gnus-newsgroup-unseen
5652 (gnus-inverse-list-range-intersection
5653 gnus-newsgroup-articles gnus-newsgroup-seen))))
5654
d09ae6ca
GM
5655(declare-function gnus-get-predicate "gnus-agent" (predicate))
5656
23f87bed
MB
5657(defun gnus-summary-display-make-predicate (display)
5658 (require 'gnus-agent)
5659 (when (= (length display) 1)
5660 (setq display (car display)))
5661 (unless gnus-summary-display-cache
5662 (dolist (elem (append '((unread . unread)
5663 (read . read)
5664 (unseen . unseen))
5665 gnus-article-mark-lists))
5666 (push (cons (cdr elem)
5667 (gnus-byte-compile
5668 `(lambda () (gnus-article-marked-p ',(cdr elem)))))
5669 gnus-summary-display-cache)))
5670 (let ((gnus-category-predicate-alist gnus-summary-display-cache)
5671 (gnus-category-predicate-cache gnus-summary-display-cache))
5672 (gnus-get-predicate display)))
5673
5674;; Uses the dynamically bound `number' variable.
9efa445f 5675(defvar number)
23f87bed
MB
5676(defun gnus-article-marked-p (type &optional article)
5677 (let ((article (or article number)))
5678 (cond
5679 ((eq type 'tick)
5680 (memq article gnus-newsgroup-marked))
5681 ((eq type 'spam)
5682 (memq article gnus-newsgroup-spam-marked))
5683 ((eq type 'unsend)
5684 (memq article gnus-newsgroup-unsendable))
5685 ((eq type 'undownload)
5686 (memq article gnus-newsgroup-undownloaded))
5687 ((eq type 'download)
5688 (memq article gnus-newsgroup-downloadable))
5689 ((eq type 'unread)
5690 (memq article gnus-newsgroup-unreads))
5691 ((eq type 'read)
5692 (memq article gnus-newsgroup-reads))
5693 ((eq type 'dormant)
5694 (memq article gnus-newsgroup-dormant) )
5695 ((eq type 'expire)
5696 (memq article gnus-newsgroup-expirable))
5697 ((eq type 'reply)
5698 (memq article gnus-newsgroup-replied))
5699 ((eq type 'killed)
5700 (memq article gnus-newsgroup-killed))
5701 ((eq type 'bookmark)
5702 (assq article gnus-newsgroup-bookmarks))
5703 ((eq type 'score)
5704 (assq article gnus-newsgroup-scored))
5705 ((eq type 'save)
5706 (memq article gnus-newsgroup-saved))
5707 ((eq type 'cache)
5708 (memq article gnus-newsgroup-cached))
5709 ((eq type 'forward)
5710 (memq article gnus-newsgroup-forwarded))
5711 ((eq type 'seen)
5712 (not (memq article gnus-newsgroup-unseen)))
5713 ((eq type 'recent)
5714 (memq article gnus-newsgroup-recent))
5715 (t t))))
5716
eec82323 5717(defun gnus-articles-to-read (group &optional read-all)
16409b0b 5718 "Find out what articles the user wants to read."
26c9afc3 5719 (let* ((articles
eec82323
LMI
5720 ;; Select all articles if `read-all' is non-nil, or if there
5721 ;; are no unread articles.
5722 (if (or read-all
5723 (and (zerop (length gnus-newsgroup-marked))
5724 (zerop (length gnus-newsgroup-unreads)))
23f87bed
MB
5725 ;; Fetch all if the predicate is non-nil.
5726 gnus-newsgroup-display)
5727 ;; We want to select the headers for all the articles in
5728 ;; the group, so we select either all the active
5729 ;; articles in the group, or (if that's nil), the
5730 ;; articles in the cache.
16409b0b 5731 (or
4b70e299 5732 (if gnus-newsgroup-maximum-articles
11abff8e
MB
5733 (let ((active (gnus-active group)))
5734 (gnus-uncompress-range
5735 (cons (max (car active)
4b70e299
MB
5736 (- (cdr active)
5737 gnus-newsgroup-maximum-articles
5738 -1))
11abff8e
MB
5739 (cdr active))))
5740 (gnus-uncompress-range (gnus-active group)))
16409b0b 5741 (gnus-cache-articles-in-group group))
23f87bed
MB
5742 ;; Select only the "normal" subset of articles.
5743 (gnus-sorted-nunion
5744 (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
5745 gnus-newsgroup-unreads)))
eec82323
LMI
5746 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
5747 (scored (length scored-list))
5748 (number (length articles))
5749 (marked (+ (length gnus-newsgroup-marked)
5750 (length gnus-newsgroup-dormant)))
5751 (select
5752 (cond
5753 ((numberp read-all)
5754 read-all)
23f87bed
MB
5755 ((numberp gnus-newsgroup-display)
5756 gnus-newsgroup-display)
eec82323
LMI
5757 (t
5758 (condition-case ()
5759 (cond
5760 ((and (or (<= scored marked) (= scored number))
5761 (numberp gnus-large-newsgroup)
5762 (> number gnus-large-newsgroup))
23f87bed
MB
5763 (let* ((cursor-in-echo-area nil)
5764 (initial (gnus-parameter-large-newsgroup-initial
5765 gnus-newsgroup-name))
5766 (input
5767 (read-string
5768 (format
5769 "How many articles from %s (%s %d): "
01c52d31 5770 (gnus-group-decoded-name gnus-newsgroup-name)
23f87bed
MB
5771 (if initial "max" "default")
5772 number)
5773 (if initial
5774 (cons (number-to-string initial)
5775 0)))))
eec82323
LMI
5776 (if (string-match "^[ \t]*$" input) number input)))
5777 ((and (> scored marked) (< scored number)
5778 (> (- scored number) 20))
5779 (let ((input
5780 (read-string
5781 (format "%s %s (%d scored, %d total): "
5782 "How many articles from"
23f87bed
MB
5783 (gnus-group-decoded-name group)
5784 scored number))))
eec82323
LMI
5785 (if (string-match "^[ \t]*$" input)
5786 number input)))
5787 (t number))
d4dfaa19
DL
5788 (quit
5789 (message "Quit getting the articles to read")
5790 nil))))))
eec82323
LMI
5791 (setq select (if (stringp select) (string-to-number select) select))
5792 (if (or (null select) (zerop select))
5793 select
5794 (if (and (not (zerop scored)) (<= (abs select) scored))
5795 (progn
5796 (setq articles (sort scored-list '<))
5797 (setq number (length articles)))
5798 (setq articles (copy-sequence articles)))
5799
5800 (when (< (abs select) number)
5801 (if (< select 0)
5802 ;; Select the N oldest articles.
5803 (setcdr (nthcdr (1- (abs select)) articles) nil)
5804 ;; Select the N most recent articles.
5805 (setq articles (nthcdr (- number select) articles))))
5806 (setq gnus-newsgroup-unselected
23f87bed 5807 (gnus-sorted-difference gnus-newsgroup-unreads articles))
16409b0b 5808 (when gnus-alter-articles-to-read-function
23f87bed 5809 (setq articles
a1506d29 5810 (sort
16409b0b 5811 (funcall gnus-alter-articles-to-read-function
23f87bed 5812 gnus-newsgroup-name articles)
16409b0b 5813 '<)))
eec82323
LMI
5814 articles)))
5815
5816(defun gnus-killed-articles (killed articles)
5817 (let (out)
5818 (while articles
5819 (when (inline (gnus-member-of-range (car articles) killed))
5820 (push (car articles) out))
5821 (setq articles (cdr articles)))
5822 out))
5823
5824(defun gnus-uncompress-marks (marks)
5825 "Uncompress the mark ranges in MARKS."
5826 (let ((uncompressed '(score bookmark))
5827 out)
5828 (while marks
5829 (if (memq (caar marks) uncompressed)
5830 (push (car marks) out)
5831 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
5832 (setq marks (cdr marks)))
5833 out))
5834
23f87bed
MB
5835(defun gnus-article-mark-to-type (mark)
5836 "Return the type of MARK."
5837 (or (cadr (assq mark gnus-article-special-mark-lists))
5838 'list))
5839
5840(defun gnus-article-unpropagatable-p (mark)
5841 "Return whether MARK should be propagated to back end."
5842 (memq mark gnus-article-unpropagated-mark-lists))
5843
eec82323 5844(defun gnus-adjust-marked-articles (info)
16409b0b 5845 "Set all article lists and remove all marks that are no longer valid."
eec82323
LMI
5846 (let* ((marked-lists (gnus-info-marks info))
5847 (active (gnus-active (gnus-info-group info)))
5848 (min (car active))
5849 (max (cdr active))
5850 (types gnus-article-mark-lists)
54506618
MB
5851 marks var articles article mark mark-type
5852 bgn end)
0617bb00
LMI
5853 ;; Hack to avoid adjusting marks for imap.
5854 (when (eq (car (gnus-find-method-for-group (gnus-info-group info)))
5855 'nnimap)
5856 (setq min 1))
eec82323 5857
23f87bed
MB
5858 (dolist (marks marked-lists)
5859 (setq mark (car marks)
5860 mark-type (gnus-article-mark-to-type mark)
5861 var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
eec82323 5862
23f87bed
MB
5863 ;; We set the variable according to the type of the marks list,
5864 ;; and then adjust the marks to a subset of the active articles.
eec82323 5865 (cond
54506618 5866 ;; Adjust "simple" lists - compressed yet unsorted
23f87bed 5867 ((eq mark-type 'list)
54506618
MB
5868 ;; Simultaneously uncompress and clip to active range
5869 ;; See gnus-uncompress-range for a description of possible marks
5870 (let (l lh)
5871 (if (not (cadr marks))
5872 (set var nil)
5873 (setq articles (if (numberp (cddr marks))
5874 (list (cdr marks))
5875 (cdr marks))
5876 lh (cons nil nil)
5877 l lh)
5878
5879 (while (setq article (pop articles))
5880 (cond ((consp article)
5881 (setq bgn (max (car article) min)
5882 end (min (cdr article) max))
5883 (while (<= bgn end)
5884 (setq l (setcdr l (cons bgn nil))
5885 bgn (1+ bgn))))
5886 ((and (<= min article)
5887 (>= max article))
5888 (setq l (setcdr l (cons article nil))))))
5889 (set var (cdr lh)))))
eec82323 5890 ;; Adjust assocs.
23f87bed
MB
5891 ((eq mark-type 'tuple)
5892 (set var (setq articles (cdr marks)))
a8151ef7
LMI
5893 (when (not (listp (cdr (symbol-value var))))
5894 (set var (list (symbol-value var))))
5895 (when (not (listp (cdr articles)))
5896 (setq articles (list articles)))
eec82323
LMI
5897 (while articles
5898 (when (or (not (consp (setq article (pop articles))))
5899 (< (car article) min)
5900 (> (car article) max))
23f87bed
MB
5901 (set var (delq article (symbol-value var))))))
5902 ;; Adjust ranges (sloppily).
5903 ((eq mark-type 'range)
5904 (cond
5905 ((eq mark 'seen)
5906 ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
5907 ;; It should be (seen (NUM1 . NUM2)).
5908 (when (numberp (cddr marks))
5909 (setcdr marks (list (cdr marks))))
5910 (setq articles (cdr marks))
5911 (while (and articles
5912 (or (and (consp (car articles))
5913 (> min (cdar articles)))
5914 (and (numberp (car articles))
5915 (> min (car articles)))))
5916 (pop articles))
5917 (set var articles))))))))
eec82323
LMI
5918
5919(defun gnus-update-missing-marks (missing)
6748645f 5920 "Go through the list of MISSING articles and remove them from the mark lists."
eec82323 5921 (when missing
23f87bed 5922 (let (var m)
eec82323 5923 ;; Go through all types.
23f87bed
MB
5924 (dolist (elem gnus-article-mark-lists)
5925 (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
5926 (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
5927 (when (symbol-value var)
5928 ;; This list has articles. So we delete all missing
5929 ;; articles from it.
5930 (setq m missing)
5931 (while m
5932 (set var (delq (pop m) (symbol-value var))))))))))
eec82323
LMI
5933
5934(defun gnus-update-marks ()
5935 "Enter the various lists of marked articles into the newsgroup info list."
5936 (let ((types gnus-article-mark-lists)
5937 (info (gnus-get-info gnus-newsgroup-name))
16409b0b 5938 type list newmarked symbol delta-marks)
eec82323 5939 (when info
16409b0b 5940 ;; Add all marks lists to the list of marks lists.
eec82323 5941 (while (setq type (pop types))
16409b0b
GM
5942 (setq list (symbol-value
5943 (setq symbol
23f87bed 5944 (intern (format "gnus-newsgroup-%s" (car type))))))
eec82323 5945
16409b0b 5946 (when list
eec82323
LMI
5947 ;; Get rid of the entries of the articles that have the
5948 ;; default score.
5949 (when (and (eq (cdr type) 'score)
5950 gnus-save-score
5951 list)
5952 (let* ((arts list)
5953 (prev (cons nil list))
5954 (all prev))
5955 (while arts
5956 (if (or (not (consp (car arts)))
5957 (= (cdar arts) gnus-summary-default-score))
5958 (setcdr prev (cdr arts))
5959 (setq prev arts))
5960 (setq arts (cdr arts)))
16409b0b
GM
5961 (setq list (cdr all)))))
5962
23f87bed
MB
5963 (when (eq (cdr type) 'seen)
5964 (setq list (gnus-range-add list gnus-newsgroup-unseen)))
5965
5966 (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
16409b0b 5967 (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
a1506d29 5968
23f87bed
MB
5969 (when (and (gnus-check-backend-function
5970 'request-set-mark gnus-newsgroup-name)
5971 (not (gnus-article-unpropagatable-p (cdr type))))
5972 (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
5973 (del (gnus-remove-from-range (gnus-copy-sequence old) list))
5974 (add (gnus-remove-from-range
5975 (gnus-copy-sequence list) old)))
5976 (when add
5977 (push (list add 'add (list (cdr type))) delta-marks))
5978 (when del
b069e5a6
G
5979 ;; Don't delete marks from outside the active range. This
5980 ;; shouldn't happen, but is a sanity check.
5981 (setq del (gnus-sorted-range-intersection
5982 (gnus-active gnus-newsgroup-name) del))
23f87bed 5983 (push (list del 'del (list (cdr type))) delta-marks))))
a1506d29 5984
16409b0b
GM
5985 (when list
5986 (push (cons (cdr type) list) newmarked)))
5987
5988 (when delta-marks
5989 (unless (gnus-check-group gnus-newsgroup-name)
5990 (error "Can't open server for %s" gnus-newsgroup-name))
5991 (gnus-request-set-mark gnus-newsgroup-name delta-marks))
a1506d29 5992
eec82323
LMI
5993 ;; Enter these new marks into the info of the group.
5994 (if (nthcdr 3 info)
5995 (setcar (nthcdr 3 info) newmarked)
5996 ;; Add the marks lists to the end of the info.
5997 (when newmarked
5998 (setcdr (nthcdr 2 info) (list newmarked))))
5999
6000 ;; Cut off the end of the info if there's nothing else there.
6001 (let ((i 5))
6002 (while (and (> i 2)
6003 (not (nth i info)))
6004 (when (nthcdr (decf i) info)
6005 (setcdr (nthcdr i info) nil)))))))
6006
6007(defun gnus-set-mode-line (where)
16409b0b 6008 "Set the mode line of the article or summary buffers.
eec82323
LMI
6009If WHERE is `summary', the summary mode line format will be used."
6010 ;; Is this mode line one we keep updated?
16409b0b
GM
6011 (when (and (memq where gnus-updated-mode-lines)
6012 (symbol-value
6013 (intern (format "gnus-%s-mode-line-format-spec" where))))
eec82323 6014 (let (mode-string)
c7a91ce1
SM
6015 ;; We evaluate this in the summary buffer since these
6016 ;; variables are buffer-local to that buffer.
6017 (with-current-buffer gnus-summary-buffer
6018 ;; We bind all these variables that are used in the `eval' form
eec82323
LMI
6019 ;; below.
6020 (let* ((mformat (symbol-value
6021 (intern
6022 (format "gnus-%s-mode-line-format-spec" where))))
b90a6149
MB
6023 (gnus-tmp-group-name (gnus-mode-string-quote
6024 (gnus-group-decoded-name
6025 gnus-newsgroup-name)))
eec82323
LMI
6026 (gnus-tmp-article-number (or gnus-current-article 0))
6027 (gnus-tmp-unread gnus-newsgroup-unreads)
6028 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
6029 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
6030 (gnus-tmp-unread-and-unselected
6031 (cond ((and (zerop gnus-tmp-unread-and-unticked)
6032 (zerop gnus-tmp-unselected))
6033 "")
6034 ((zerop gnus-tmp-unselected)
6035 (format "{%d more}" gnus-tmp-unread-and-unticked))
6036 (t (format "{%d(+%d) more}"
6037 gnus-tmp-unread-and-unticked
6038 gnus-tmp-unselected))))
6039 (gnus-tmp-subject
6040 (if (and gnus-current-headers
6041 (vectorp gnus-current-headers))
6042 (gnus-mode-string-quote
6043 (mail-header-subject gnus-current-headers))
6044 ""))
6045 bufname-length max-len
23f87bed 6046 gnus-tmp-header) ;; passed as argument to any user-format-funcs
eec82323
LMI
6047 (setq mode-string (eval mformat))
6048 (setq bufname-length (if (string-match "%b" mode-string)
6049 (- (length
6050 (buffer-name
6051 (if (eq where 'summary)
6052 nil
6053 (get-buffer gnus-article-buffer))))
6054 2)
6055 0))
6056 (setq max-len (max 4 (if gnus-mode-non-string-length
6057 (- (window-width)
6058 gnus-mode-non-string-length
6059 bufname-length)
6060 (length mode-string))))
6061 ;; We might have to chop a bit of the string off...
6062 (when (> (length mode-string) max-len)
6063 (setq mode-string
16409b0b 6064 (concat (truncate-string-to-width mode-string (- max-len 3))
29d31b55 6065 "...")))))
eec82323
LMI
6066 ;; Update the mode line.
6067 (setq mode-line-buffer-identification
6068 (gnus-mode-line-buffer-identification (list mode-string)))
6069 (set-buffer-modified-p t))))
6070
6071(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
6072 "Go through the HEADERS list and add all Xrefs to a hash table.
6073The resulting hash table is returned, or nil if no Xrefs were found."
6074 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
6075 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
6076 (xref-hashtb (gnus-make-hashtable))
6077 start group entry number xrefs header)
6078 (while headers
6079 (setq header (pop headers))
6080 (when (and (setq xrefs (mail-header-xref header))
6081 (not (memq (setq number (mail-header-number header))
6082 unreads)))
6083 (setq start 0)
6084 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
6085 (setq start (match-end 0))
6086 (setq group (if prefix
6087 (concat prefix (substring xrefs (match-beginning 1)
6088 (match-end 1)))
6089 (substring xrefs (match-beginning 1) (match-end 1))))
6090 (setq number
e9bd5782 6091 (string-to-number (substring xrefs (match-beginning 2)
eec82323
LMI
6092 (match-end 2))))
6093 (if (setq entry (gnus-gethash group xref-hashtb))
6094 (setcdr entry (cons number (cdr entry)))
6095 (gnus-sethash group (cons number nil) xref-hashtb)))))
6096 (and start xref-hashtb)))
6097
6098(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
6099 "Look through all the headers and mark the Xrefs as read."
6100 (let ((virtual (gnus-virtual-group-p from-newsgroup))
01c52d31 6101 name info xref-hashtb idlist method nth4)
398a825b 6102 (with-current-buffer gnus-group-buffer
eec82323
LMI
6103 (when (setq xref-hashtb
6104 (gnus-create-xref-hashtb from-newsgroup headers unreads))
6105 (mapatoms
6106 (lambda (group)
6107 (unless (string= from-newsgroup (setq name (symbol-name group)))
6108 (setq idlist (symbol-value group))
6109 ;; Dead groups are not updated.
6110 (and (prog1
01c52d31 6111 (setq info (gnus-get-info name))
eec82323
LMI
6112 (when (stringp (setq nth4 (gnus-info-method info)))
6113 (setq nth4 (gnus-server-to-method nth4))))
6114 ;; Only do the xrefs if the group has the same
6115 ;; select method as the group we have just read.
6116 (or (gnus-methods-equal-p
6117 nth4 (gnus-find-method-for-group from-newsgroup))
6118 virtual
6119 (equal nth4 (setq method (gnus-find-method-for-group
6120 from-newsgroup)))
6121 (and (equal (car nth4) (car method))
6122 (equal (nth 1 nth4) (nth 1 method))))
6123 gnus-use-cross-reference
6124 (or (not (eq gnus-use-cross-reference t))
6125 virtual
6126 ;; Only do cross-references on subscribed
6127 ;; groups, if that is what is wanted.
6128 (<= (gnus-info-level info) gnus-level-subscribed))
6129 (gnus-group-make-articles-read name idlist))))
6130 xref-hashtb)))))
6131
6748645f 6132(defun gnus-compute-read-articles (group articles)
01c52d31 6133 (let* ((entry (gnus-group-entry group))
6748645f
LMI
6134 (info (nth 2 entry))
6135 (active (gnus-active group))
6136 ninfo)
6137 (when entry
16409b0b 6138 ;; First peel off all invalid article numbers.
6748645f
LMI
6139 (when active
6140 (let ((ids articles)
6141 id first)
6142 (while (setq id (pop ids))
6143 (when (and first (> id (cdr active)))
6144 ;; We'll end up in this situation in one particular
6145 ;; obscure situation. If you re-scan a group and get
6146 ;; a new article that is cross-posted to a different
6147 ;; group that has not been re-scanned, you might get
6148 ;; crossposted article that has a higher number than
6149 ;; Gnus believes possible. So we re-activate this
6150 ;; group as well. This might mean doing the
6151 ;; crossposting thingy will *increase* the number
6152 ;; of articles in some groups. Tsk, tsk.
6153 (setq active (or (gnus-activate-group group) active)))
6154 (when (or (> id (cdr active))
6155 (< id (car active)))
6156 (setq articles (delq id articles))))))
6157 ;; If the read list is nil, we init it.
6158 (if (and active
6159 (null (gnus-info-read info))
6160 (> (car active) 1))
6161 (setq ninfo (cons 1 (1- (car active))))
6162 (setq ninfo (gnus-info-read info)))
6163 ;; Then we add the read articles to the range.
6164 (gnus-add-to-range
6165 ninfo (setq articles (sort articles '<))))))
6166
eec82323
LMI
6167(defun gnus-group-make-articles-read (group articles)
6168 "Update the info of GROUP to say that ARTICLES are read."
6169 (let* ((num 0)
01c52d31 6170 (entry (gnus-group-entry group))
eec82323
LMI
6171 (info (nth 2 entry))
6172 (active (gnus-active group))
6173 range)
6748645f
LMI
6174 (when entry
6175 (setq range (gnus-compute-read-articles group articles))
01c52d31 6176 (with-current-buffer gnus-group-buffer
6748645f
LMI
6177 (gnus-undo-register
6178 `(progn
6179 (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
6180 (gnus-info-set-read ',info ',(gnus-info-read info))
6181 (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
23f87bed 6182 (gnus-request-set-mark ,group (list (list ',range 'del '(read))))
6748645f
LMI
6183 (gnus-group-update-group ,group t))))
6184 ;; Add the read articles to the range.
6185 (gnus-info-set-read info range)
23f87bed 6186 (gnus-request-set-mark group (list (list range 'add '(read))))
6748645f
LMI
6187 ;; Then we have to re-compute how many unread
6188 ;; articles there are in this group.
6189 (when active
6190 (cond
6191 ((not range)
6192 (setq num (- (1+ (cdr active)) (car active))))
6193 ((not (listp (cdr range)))
6194 (setq num (- (cdr active) (- (1+ (cdr range))
6195 (car range)))))
6196 (t
6197 (while range
6198 (if (numberp (car range))
6199 (setq num (1+ num))
6200 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
6201 (setq range (cdr range)))
6202 (setq num (- (cdr active) num))))
6203 ;; Update the number of unread articles.
6204 (setcar entry num)
6205 ;; Update the group buffer.
23f87bed
MB
6206 (unless (gnus-ephemeral-group-p group)
6207 (gnus-group-update-group group t))))))
eec82323 6208
eec82323
LMI
6209(defvar gnus-newsgroup-none-id 0)
6210
6211(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
6212 (let ((cur nntp-server-buffer)
6213 (dependencies
6214 (or dependencies
01c52d31
MB
6215 (with-current-buffer gnus-summary-buffer
6216 gnus-newsgroup-dependencies)))
6217 headers id end ref number
16409b0b
GM
6218 (mail-parse-charset gnus-newsgroup-charset)
6219 (mail-parse-ignored-charsets
c7a91ce1
SM
6220 (save-current-buffer (condition-case nil
6221 (set-buffer gnus-summary-buffer)
6222 (error))
6223 gnus-newsgroup-ignored-charsets)))
6224 (with-current-buffer nntp-server-buffer
eec82323
LMI
6225 ;; Translate all TAB characters into SPACE characters.
6226 (subst-char-in-region (point-min) (point-max) ?\t ? t)
16409b0b 6227 (subst-char-in-region (point-min) (point-max) ?\r ? t)
23f87bed 6228 (ietf-drums-unfold-fws)
6748645f 6229 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6230 (let ((case-fold-search t)
6748645f 6231 in-reply-to header p lines chars)
eec82323 6232 (goto-char (point-min))
01ccbb85 6233 ;; Search to the beginning of the next header. Error messages
eec82323
LMI
6234 ;; do not begin with 2 or 3.
6235 (while (re-search-forward "^[23][0-9]+ " nil t)
6236 (setq id nil
6237 ref nil)
6238 ;; This implementation of this function, with nine
6239 ;; search-forwards instead of the one re-search-forward and
6240 ;; a case (which basically was the old function) is actually
01ccbb85 6241 ;; about twice as fast, even though it looks messier. You
eec82323
LMI
6242 ;; can't have everything, I guess. Speed and elegance
6243 ;; doesn't always go hand in hand.
6244 (setq
6245 header
6246 (vector
6247 ;; Number.
6248 (prog1
01c52d31 6249 (setq number (read cur))
eec82323
LMI
6250 (end-of-line)
6251 (setq p (point))
6252 (narrow-to-region (point)
6253 (or (and (search-forward "\n.\n" nil t)
6254 (- (point) 2))
6255 (point))))
6256 ;; Subject.
6257 (progn
6258 (goto-char p)
23f87bed 6259 (if (search-forward "\nsubject:" nil t)
16409b0b
GM
6260 (funcall gnus-decode-encoded-word-function
6261 (nnheader-header-value))
2bd3dcae 6262 "(none)"))
eec82323
LMI
6263 ;; From.
6264 (progn
6265 (goto-char p)
23f87bed 6266 (if (search-forward "\nfrom:" nil t)
343d6628 6267 (funcall gnus-decode-encoded-address-function
16409b0b 6268 (nnheader-header-value))
2bd3dcae 6269 "(nobody)"))
eec82323
LMI
6270 ;; Date.
6271 (progn
6272 (goto-char p)
23f87bed 6273 (if (search-forward "\ndate:" nil t)
eec82323
LMI
6274 (nnheader-header-value) ""))
6275 ;; Message-ID.
6276 (progn
6277 (goto-char p)
6748645f
LMI
6278 (setq id (if (re-search-forward
6279 "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
6280 ;; We do it this way to make sure the Message-ID
6281 ;; is (somewhat) syntactically valid.
6282 (buffer-substring (match-beginning 1)
6283 (match-end 1))
eec82323
LMI
6284 ;; If there was no message-id, we just fake one
6285 ;; to make subsequent routines simpler.
01c52d31 6286 (nnheader-generate-fake-message-id number))))
eec82323
LMI
6287 ;; References.
6288 (progn
6289 (goto-char p)
23f87bed 6290 (if (search-forward "\nreferences:" nil t)
eec82323
LMI
6291 (progn
6292 (setq end (point))
6293 (prog1
6294 (nnheader-header-value)
6295 (setq ref
6296 (buffer-substring
6297 (progn
6298 (end-of-line)
6299 (search-backward ">" end t)
6300 (1+ (point)))
6301 (progn
6302 (search-backward "<" end t)
6303 (point))))))
6304 ;; Get the references from the in-reply-to header if there
6305 ;; were no references and the in-reply-to header looks
6306 ;; promising.
23f87bed 6307 (if (and (search-forward "\nin-reply-to:" nil t)
eec82323
LMI
6308 (setq in-reply-to (nnheader-header-value))
6309 (string-match "<[^>]+>" in-reply-to))
6748645f
LMI
6310 (let (ref2)
6311 (setq ref (substring in-reply-to (match-beginning 0)
6312 (match-end 0)))
6313 (while (string-match "<[^>]+>" in-reply-to (match-end 0))
6314 (setq ref2 (substring in-reply-to (match-beginning 0)
6315 (match-end 0)))
6316 (when (> (length ref2) (length ref))
6317 (setq ref ref2)))
6318 ref)
eec82323
LMI
6319 (setq ref nil))))
6320 ;; Chars.
6748645f
LMI
6321 (progn
6322 (goto-char p)
6323 (if (search-forward "\nchars: " nil t)
6324 (if (numberp (setq chars (ignore-errors (read cur))))
23f87bed
MB
6325 chars -1)
6326 -1))
eec82323
LMI
6327 ;; Lines.
6328 (progn
6329 (goto-char p)
6330 (if (search-forward "\nlines: " nil t)
a8151ef7 6331 (if (numberp (setq lines (ignore-errors (read cur))))
23f87bed
MB
6332 lines -1)
6333 -1))
eec82323
LMI
6334 ;; Xref.
6335 (progn
6336 (goto-char p)
23f87bed 6337 (and (search-forward "\nxref:" nil t)
16409b0b
GM
6338 (nnheader-header-value)))
6339 ;; Extra.
6340 (when gnus-extra-headers
6341 (let ((extra gnus-extra-headers)
6342 out)
6343 (while extra
6344 (goto-char p)
6345 (when (search-forward
23f87bed 6346 (concat "\n" (symbol-name (car extra)) ":") nil t)
16409b0b
GM
6347 (push (cons (car extra) (nnheader-header-value))
6348 out))
6349 (pop extra))
6350 out))))
eec82323
LMI
6351 (when (equal id ref)
6352 (setq ref nil))
6748645f
LMI
6353
6354 (when gnus-alter-header-function
6355 (funcall gnus-alter-header-function header)
6356 (setq id (mail-header-id header)
6357 ref (gnus-parent-id (mail-header-references header))))
6358
6359 (when (setq header
6360 (gnus-dependencies-add-header
6361 header dependencies force-new))
eec82323
LMI
6362 (push header headers))
6363 (goto-char (point-max))
6364 (widen))
6365 (nreverse headers)))))
6366
eec82323
LMI
6367;; Goes through the xover lines and returns a list of vectors
6368(defun gnus-get-newsgroup-headers-xover (sequence &optional
6369 force-new dependencies
6370 group also-fetch-heads)
16409b0b
GM
6371 "Parse the news overview data in the server buffer.
6372Return a list of headers that match SEQUENCE (see
6373`nntp-retrieve-headers')."
eec82323
LMI
6374 ;; Get the Xref when the users reads the articles since most/some
6375 ;; NNTP servers do not include Xrefs when using XOVER.
6376 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
16409b0b
GM
6377 (let ((mail-parse-charset gnus-newsgroup-charset)
6378 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
6379 (cur nntp-server-buffer)
eec82323 6380 (dependencies (or dependencies gnus-newsgroup-dependencies))
23f87bed
MB
6381 (allp (cond
6382 ((eq gnus-read-all-available-headers t)
6383 t)
14e6dc54
MB
6384 ((and (stringp gnus-read-all-available-headers)
6385 group)
23f87bed
MB
6386 (string-match gnus-read-all-available-headers group))
6387 (t
6388 nil)))
eec82323 6389 number headers header)
c7a91ce1 6390 (with-current-buffer nntp-server-buffer
16409b0b 6391 (subst-char-in-region (point-min) (point-max) ?\r ? t)
eec82323 6392 ;; Allow the user to mangle the headers before parsing them.
6748645f 6393 (gnus-run-hooks 'gnus-parse-headers-hook)
eec82323 6394 (goto-char (point-min))
23f87bed
MB
6395 (gnus-parse-without-error
6396 (while (and (or sequence allp)
6397 (not (eobp)))
6398 (setq number (read cur))
6399 (when (not allp)
6400 (while (and sequence
6401 (< (car sequence) number))
6402 (setq sequence (cdr sequence))))
6403 (when (and (or allp
6404 (and sequence
6405 (eq number (car sequence))))
6406 (progn
6407 (setq sequence (cdr sequence))
6408 (setq header (inline
6409 (gnus-nov-parse-line
6410 number dependencies force-new)))))
6411 (push header headers))
6412 (forward-line 1)))
eec82323
LMI
6413 ;; A common bug in inn is that if you have posted an article and
6414 ;; then retrieves the active file, it will answer correctly --
6415 ;; the new article is included. However, a NOV entry for the
6416 ;; article may not have been generated yet, so this may fail.
6417 ;; We work around this problem by retrieving the last few
6418 ;; headers using HEAD.
6419 (if (or (not also-fetch-heads)
6420 (not sequence))
6421 ;; We (probably) got all the headers.
6422 (nreverse headers)
6423 (let ((gnus-nov-is-evil t))
6424 (nconc
6425 (nreverse headers)
23f87bed 6426 (when (eq (gnus-retrieve-headers sequence group) 'headers)
eec82323
LMI
6427 (gnus-get-newsgroup-headers))))))))
6428
6429(defun gnus-article-get-xrefs ()
6430 "Fill in the Xref value in `gnus-current-headers', if necessary.
6431This is meant to be called in `gnus-article-internal-prepare-hook'."
01c52d31
MB
6432 (let ((headers (with-current-buffer gnus-summary-buffer
6433 gnus-current-headers)))
eec82323
LMI
6434 (or (not gnus-use-cross-reference)
6435 (not headers)
6436 (and (mail-header-xref headers)
6437 (not (string= (mail-header-xref headers) "")))
6438 (let ((case-fold-search t)
6439 xref)
6440 (save-restriction
6441 (nnheader-narrow-to-headers)
6442 (goto-char (point-min))
16409b0b
GM
6443 (when (or (and (not (eobp))
6444 (eq (downcase (char-after)) ?x)
eec82323
LMI
6445 (looking-at "Xref:"))
6446 (search-forward "\nXref:" nil t))
6447 (goto-char (1+ (match-end 0)))
01c52d31 6448 (setq xref (buffer-substring (point) (point-at-eol)))
eec82323
LMI
6449 (mail-header-set-xref headers xref)))))))
6450
6451(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
6748645f
LMI
6452 "Find article ID and insert the summary line for that article.
6453OLD-HEADER can either be a header or a line number to insert
6454the subject line on."
6455 (let* ((line (and (numberp old-header) old-header))
6456 (old-header (and (vectorp old-header) old-header))
6457 (header (cond ((and old-header use-old-header)
16409b0b
GM
6458 old-header)
6459 ((and (numberp id)
6460 (gnus-number-to-header id))
6461 (gnus-number-to-header id))
6462 (t
6463 (gnus-read-header id))))
6464 (number (and (numberp id) id))
6465 d)
eec82323
LMI
6466 (when header
6467 ;; Rebuild the thread that this article is part of and go to the
6468 ;; article we have fetched.
6469 (when (and (not gnus-show-threads)
6470 old-header)
6748645f
LMI
6471 (when (and number
6472 (setq d (gnus-data-find (mail-header-number old-header))))
eec82323
LMI
6473 (goto-char (gnus-data-pos d))
6474 (gnus-data-remove
6475 number
01c52d31 6476 (- (point-at-bol)
eec82323 6477 (prog1
01c52d31 6478 (1+ (point-at-eol))
eec82323 6479 (gnus-delete-line))))))
23f87bed
MB
6480 ;; Remove list identifiers from subject.
6481 (when gnus-list-identifiers
6482 (let ((gnus-newsgroup-headers (list header)))
c3bc41c2 6483 (gnus-summary-remove-list-identifiers)))
eec82323
LMI
6484 (when old-header
6485 (mail-header-set-number header (mail-header-number old-header)))
6486 (setq gnus-newsgroup-sparse
6487 (delq (setq number (mail-header-number header))
6488 gnus-newsgroup-sparse))
6489 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
6748645f
LMI
6490 (push number gnus-newsgroup-limit)
6491 (gnus-rebuild-thread (mail-header-id header) line)
eec82323
LMI
6492 (gnus-summary-goto-subject number nil t))
6493 (when (and (numberp number)
6494 (> number 0))
6495 ;; We have to update the boundaries even if we can't fetch the
6496 ;; article if ID is a number -- so that the next `P' or `N'
6497 ;; command will fetch the previous (or next) article even
6498 ;; if the one we tried to fetch this time has been canceled.
6499 (when (> number gnus-newsgroup-end)
6500 (setq gnus-newsgroup-end number))
6501 (when (< number gnus-newsgroup-begin)
6502 (setq gnus-newsgroup-begin number))
6503 (setq gnus-newsgroup-unselected
6504 (delq number gnus-newsgroup-unselected)))
6505 ;; Report back a success?
6506 (and header (mail-header-number header))))
6507
6508;;; Process/prefix in the summary buffer
6509
6510(defun gnus-summary-work-articles (n)
6748645f
LMI
6511 "Return a list of articles to be worked upon.
6512The prefix argument, the list of process marked articles, and the
6513current article will be taken into consideration."
c7a91ce1 6514 (with-current-buffer gnus-summary-buffer
6748645f
LMI
6515 (cond
6516 (n
6517 ;; A numerical prefix has been given.
6518 (setq n (prefix-numeric-value n))
6519 (let ((backward (< n 0))
6520 (n (abs (prefix-numeric-value n)))
6521 articles article)
6522 (save-excursion
6523 (while
6524 (and (> n 0)
6525 (push (setq article (gnus-summary-article-number))
6526 articles)
6527 (if backward
6528 (gnus-summary-find-prev nil article)
6529 (gnus-summary-find-next nil article)))
6530 (decf n)))
6531 (nreverse articles)))
6532 ((and (gnus-region-active-p) (mark))
6533 (message "region active")
6534 ;; Work on the region between point and mark.
6535 (let ((max (max (point) (mark)))
6536 articles article)
6537 (save-excursion
7dafe00b 6538 (goto-char (min (point) (mark)))
6748645f
LMI
6539 (while
6540 (and
6541 (push (setq article (gnus-summary-article-number)) articles)
6542 (gnus-summary-find-next nil article)
6543 (< (point) max)))
6544 (nreverse articles))))
6545 (gnus-newsgroup-processable
6546 ;; There are process-marked articles present.
6547 ;; Save current state.
6548 (gnus-summary-save-process-mark)
6549 ;; Return the list.
6550 (reverse gnus-newsgroup-processable))
6551 (t
6552 ;; Just return the current article.
6553 (list (gnus-summary-article-number))))))
6554
6555(defmacro gnus-summary-iterate (arg &rest forms)
6556 "Iterate over the process/prefixed articles and do FORMS.
6557ARG is the interactive prefix given to the command. FORMS will be
6558executed with point over the summary line of the articles."
6559 (let ((articles (make-symbol "gnus-summary-iterate-articles")))
6560 `(let ((,articles (gnus-summary-work-articles ,arg)))
6561 (while ,articles
6562 (gnus-summary-goto-subject (car ,articles))
16409b0b
GM
6563 ,@forms
6564 (pop ,articles)))))
6748645f
LMI
6565
6566(put 'gnus-summary-iterate 'lisp-indent-function 1)
6567(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
eec82323
LMI
6568
6569(defun gnus-summary-save-process-mark ()
6570 "Push the current set of process marked articles on the stack."
6571 (interactive)
6572 (push (copy-sequence gnus-newsgroup-processable)
6573 gnus-newsgroup-process-stack))
6574
6575(defun gnus-summary-kill-process-mark ()
6576 "Push the current set of process marked articles on the stack and unmark."
6577 (interactive)
6578 (gnus-summary-save-process-mark)
6579 (gnus-summary-unmark-all-processable))
6580
6581(defun gnus-summary-yank-process-mark ()
6582 "Pop the last process mark state off the stack and restore it."
6583 (interactive)
6584 (unless gnus-newsgroup-process-stack
6585 (error "Empty mark stack"))
6586 (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
6587
6588(defun gnus-summary-process-mark-set (set)
6589 "Make SET into the current process marked articles."
6590 (gnus-summary-unmark-all-processable)
01c52d31 6591 (mapc 'gnus-summary-set-process-mark set))
eec82323
LMI
6592
6593;;; Searching and stuff
6594
6595(defun gnus-summary-search-group (&optional backward use-level)
6596 "Search for next unread newsgroup.
6597If optional argument BACKWARD is non-nil, search backward instead."
c7a91ce1 6598 (with-current-buffer gnus-group-buffer
eec82323
LMI
6599 (when (gnus-group-search-forward
6600 backward nil (if use-level (gnus-group-group-level) nil))
6601 (gnus-group-group-name))))
6602
6603(defun gnus-summary-best-group (&optional exclude-group)
6604 "Find the name of the best unread group.
6605If EXCLUDE-GROUP, do not go to this group."
01c52d31 6606 (with-current-buffer gnus-group-buffer
eec82323
LMI
6607 (save-excursion
6608 (gnus-group-best-unread-group exclude-group))))
6609
23f87bed
MB
6610(defun gnus-summary-find-next (&optional unread article backward)
6611 (if backward
6612 (gnus-summary-find-prev unread article)
eec82323
LMI
6613 (let* ((dummy (gnus-summary-article-intangible-p))
6614 (article (or article (gnus-summary-article-number)))
23f87bed 6615 (data (gnus-data-find-list article))
eec82323
LMI
6616 result)
6617 (when (and (not dummy)
6618 (or (not gnus-summary-check-current)
6619 (not unread)
23f87bed
MB
6620 (not (gnus-data-unread-p (car data)))))
6621 (setq data (cdr data)))
eec82323
LMI
6622 (when (setq result
6623 (if unread
6624 (progn
23f87bed
MB
6625 (while data
6626 (unless (memq (gnus-data-number (car data))
6627 (cond
6628 ((eq gnus-auto-goto-ignores
6629 'always-undownloaded)
6630 gnus-newsgroup-undownloaded)
6631 (gnus-plugged
6632 nil)
6633 ((eq gnus-auto-goto-ignores
6634 'unfetched)
6635 gnus-newsgroup-unfetched)
6636 ((eq gnus-auto-goto-ignores
6637 'undownloaded)
6638 gnus-newsgroup-undownloaded)))
6639 (when (gnus-data-unread-p (car data))
6640 (setq result (car data)
6641 data nil)))
6642 (setq data (cdr data)))
eec82323 6643 result)
23f87bed 6644 (car data)))
eec82323
LMI
6645 (goto-char (gnus-data-pos result))
6646 (gnus-data-number result)))))
6647
6648(defun gnus-summary-find-prev (&optional unread article)
6649 (let* ((eobp (eobp))
6650 (article (or article (gnus-summary-article-number)))
23f87bed 6651 (data (gnus-data-find-list article (gnus-data-list 'rev)))
eec82323
LMI
6652 result)
6653 (when (and (not eobp)
6654 (or (not gnus-summary-check-current)
6655 (not unread)
23f87bed
MB
6656 (not (gnus-data-unread-p (car data)))))
6657 (setq data (cdr data)))
eec82323
LMI
6658 (when (setq result
6659 (if unread
6660 (progn
23f87bed
MB
6661 (while data
6662 (unless (memq (gnus-data-number (car data))
6663 (cond
6664 ((eq gnus-auto-goto-ignores
6665 'always-undownloaded)
6666 gnus-newsgroup-undownloaded)
6667 (gnus-plugged
6668 nil)
6669 ((eq gnus-auto-goto-ignores
6670 'unfetched)
6671 gnus-newsgroup-unfetched)
6672 ((eq gnus-auto-goto-ignores
6673 'undownloaded)
6674 gnus-newsgroup-undownloaded)))
6675 (when (gnus-data-unread-p (car data))
6676 (setq result (car data)
6677 data nil)))
6678 (setq data (cdr data)))
eec82323 6679 result)
23f87bed 6680 (car data)))
eec82323
LMI
6681 (goto-char (gnus-data-pos result))
6682 (gnus-data-number result))))
6683
6684(defun gnus-summary-find-subject (subject &optional unread backward article)
6685 (let* ((simp-subject (gnus-simplify-subject-fully subject))
6686 (article (or article (gnus-summary-article-number)))
6687 (articles (gnus-data-list backward))
6688 (arts (gnus-data-find-list article articles))
6689 result)
6690 (when (or (not gnus-summary-check-current)
6691 (not unread)
6692 (not (gnus-data-unread-p (car arts))))
6693 (setq arts (cdr arts)))
6694 (while arts
6695 (and (or (not unread)
6696 (gnus-data-unread-p (car arts)))
6697 (vectorp (gnus-data-header (car arts)))
6698 (gnus-subject-equal
6699 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
6700 (setq result (car arts)
6701 arts nil))
6702 (setq arts (cdr arts)))
6703 (and result
6704 (goto-char (gnus-data-pos result))
6705 (gnus-data-number result))))
6706
6707(defun gnus-summary-search-forward (&optional unread subject backward)
6708 "Search forward for an article.
6709If UNREAD, look for unread articles. If SUBJECT, look for
6710articles with that subject. If BACKWARD, search backward instead."
6711 (cond (subject (gnus-summary-find-subject subject unread backward))
6712 (backward (gnus-summary-find-prev unread))
6713 (t (gnus-summary-find-next unread))))
6714
6715(defun gnus-recenter (&optional n)
6716 "Center point in window and redisplay frame.
6717Also do horizontal recentering."
6718 (interactive "P")
6719 (when (and gnus-auto-center-summary
6720 (not (eq gnus-auto-center-summary 'vertical)))
6721 (gnus-horizontal-recenter))
5aa75bd8
JL
6722 (if (fboundp 'recenter-top-bottom)
6723 (recenter-top-bottom n)
6724 (recenter n)))
6725
6726(put 'gnus-recenter 'isearch-scroll t)
eec82323 6727
7b47345b
AS
6728(defun gnus-forward-line-ignore-invisible (n)
6729 "Move N lines forward (backward if N is negative).
6730Like forward-line, but skip over (and don't count) invisible lines."
6731 (let (done)
6732 (while (and (> n 0) (not done))
6733 ;; If the following character is currently invisible,
6734 ;; skip all characters with that same `invisible' property value.
770d9a1f
KY
6735 (while (gnus-invisible-p (point))
6736 (goto-char (gnus-next-char-property-change (point))))
7b47345b
AS
6737 (forward-line 1)
6738 (if (eobp)
6739 (setq done t)
6740 (setq n (1- n))))
6741 (while (and (< n 0) (not done))
6742 (forward-line -1)
6743 (if (bobp) (setq done t)
6744 (setq n (1+ n))
770d9a1f
KY
6745 (while (and (not (bobp)) (gnus-invisible-p (1- (point))))
6746 (goto-char (gnus-previous-char-property-change (point))))))))
6747
eec82323
LMI
6748(defun gnus-summary-recenter ()
6749 "Center point in the summary window.
6750If `gnus-auto-center-summary' is nil, or the article buffer isn't
6751displayed, no centering will be performed."
6752 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
6753 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
16409b0b 6754 (interactive)
23f87bed
MB
6755 ;; The user has to want it.
6756 (when gnus-auto-center-summary
6757 (let* ((top (cond ((< (window-height) 4) 0)
6758 ((< (window-height) 7) 1)
6759 (t (if (numberp gnus-auto-center-summary)
6760 gnus-auto-center-summary
01c52d31 6761 (/ (1- (window-height)) 2)))))
23f87bed 6762 (height (1- (window-height)))
7b47345b
AS
6763 (bottom (save-excursion
6764 (goto-char (point-max))
6765 (gnus-forward-line-ignore-invisible (- height))
6766 (point)))
23f87bed 6767 (window (get-buffer-window (current-buffer))))
eec82323
LMI
6768 (when (get-buffer-window gnus-article-buffer)
6769 ;; Only do recentering when the article buffer is displayed,
6770 ;; Set the window start to either `bottom', which is the biggest
6771 ;; possible valid number, or the second line from the top,
6772 ;; whichever is the least.
7b47345b
AS
6773 (let ((top-pos (save-excursion
6774 (gnus-forward-line-ignore-invisible (- top))
6775 (point))))
db7ebd73
MB
6776 (if (> bottom top-pos)
6777 ;; Keep the second line from the top visible
01c52d31 6778 (set-window-start window top-pos)
db7ebd73
MB
6779 ;; Try to keep the bottom line visible; if it's partially
6780 ;; obscured, either scroll one more line to make it fully
6781 ;; visible, or revert to using TOP-POS.
6782 (save-excursion
6783 (goto-char (point-max))
7b47345b 6784 (gnus-forward-line-ignore-invisible -1)
db7ebd73
MB
6785 (let ((last-line-start (point)))
6786 (goto-char bottom)
6787 (set-window-start window (point) t)
6788 (when (not (pos-visible-in-window-p last-line-start window))
7b47345b 6789 (gnus-forward-line-ignore-invisible 1)
db7ebd73 6790 (set-window-start window (min (point) top-pos) t)))))))
eec82323
LMI
6791 ;; Do horizontal recentering while we're at it.
6792 (when (and (get-buffer-window (current-buffer) t)
6793 (not (eq gnus-auto-center-summary 'vertical)))
6794 (let ((selected (selected-window)))
6795 (select-window (get-buffer-window (current-buffer) t))
6796 (gnus-summary-position-point)
6797 (gnus-horizontal-recenter)
6798 (select-window selected))))))
6799
6800(defun gnus-summary-jump-to-group (newsgroup)
6801 "Move point to NEWSGROUP in group mode buffer."
6802 ;; Keep update point of group mode buffer if visible.
6803 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
6804 (save-window-excursion
6805 ;; Take care of tree window mode.
6806 (when (get-buffer-window gnus-group-buffer)
6807 (pop-to-buffer gnus-group-buffer))
6808 (gnus-group-jump-to-group newsgroup))
6809 (save-excursion
6810 ;; Take care of tree window mode.
c7a91ce1 6811 (if (get-buffer-window gnus-group-buffer 0)
eec82323
LMI
6812 (pop-to-buffer gnus-group-buffer)
6813 (set-buffer gnus-group-buffer))
6814 (gnus-group-jump-to-group newsgroup))))
6815
6816;; This function returns a list of article numbers based on the
6817;; difference between the ranges of read articles in this group and
6818;; the range of active articles.
6819(defun gnus-list-of-unread-articles (group)
6820 (let* ((read (gnus-info-read (gnus-get-info group)))
6821 (active (or (gnus-active group) (gnus-activate-group group)))
01c52d31
MB
6822 (last (or (cdr active)
6823 (error "Group %s couldn't be activated " group)))
4b70e299
MB
6824 (bottom (if gnus-newsgroup-maximum-articles
6825 (max (car active)
6826 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6827 (car active)))
eec82323
LMI
6828 first nlast unread)
6829 ;; If none are read, then all are unread.
6830 (if (not read)
11abff8e 6831 (setq first bottom)
eec82323
LMI
6832 ;; If the range of read articles is a single range, then the
6833 ;; first unread article is the article after the last read
6834 ;; article. Sounds logical, doesn't it?
16409b0b 6835 (if (and (not (listp (cdr read)))
11abff8e 6836 (or (< (car read) bottom)
16409b0b
GM
6837 (progn (setq read (list read))
6838 nil)))
11abff8e 6839 (setq first (max bottom (1+ (cdr read))))
eec82323
LMI
6840 ;; `read' is a list of ranges.
6841 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6842 (caar read)))
6843 1)
11abff8e 6844 (setq first bottom))
eec82323
LMI
6845 (while read
6846 (when first
6847 (while (< first nlast)
54506618
MB
6848 (setq unread (cons first unread)
6849 first (1+ first))))
eec82323
LMI
6850 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6851 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6852 (setq read (cdr read)))))
6853 ;; And add the last unread articles.
6854 (while (<= first last)
54506618
MB
6855 (setq unread (cons first unread)
6856 first (1+ first)))
eec82323 6857 ;; Return the list of unread articles.
6748645f 6858 (delq 0 (nreverse unread))))
eec82323
LMI
6859
6860(defun gnus-list-of-read-articles (group)
6861 "Return a list of unread, unticked and non-dormant articles."
6862 (let* ((info (gnus-get-info group))
6863 (marked (gnus-info-marks info))
6864 (active (gnus-active group)))
6865 (and info active
23f87bed
MB
6866 (gnus-list-range-difference
6867 (gnus-list-range-difference
6868 (gnus-sorted-complement
11abff8e 6869 (gnus-uncompress-range
4b70e299 6870 (if gnus-newsgroup-maximum-articles
11abff8e 6871 (cons (max (car active)
4b70e299
MB
6872 (- (cdr active)
6873 gnus-newsgroup-maximum-articles
6874 -1))
11abff8e
MB
6875 (cdr active))
6876 active))
23f87bed
MB
6877 (gnus-list-of-unread-articles group))
6878 (cdr (assq 'dormant marked)))
6879 (cdr (assq 'tick marked))))))
eec82323 6880
54506618
MB
6881;; This function returns a sequence of article numbers based on the
6882;; difference between the ranges of read articles in this group and
6883;; the range of active articles.
6884(defun gnus-sequence-of-unread-articles (group)
6885 (let* ((read (gnus-info-read (gnus-get-info group)))
6886 (active (or (gnus-active group) (gnus-activate-group group)))
6887 (last (cdr active))
4b70e299
MB
6888 (bottom (if gnus-newsgroup-maximum-articles
6889 (max (car active)
6890 (- last gnus-newsgroup-maximum-articles -1))
11abff8e 6891 (car active)))
54506618
MB
6892 first nlast unread)
6893 ;; If none are read, then all are unread.
6894 (if (not read)
11abff8e 6895 (setq first bottom)
54506618
MB
6896 ;; If the range of read articles is a single range, then the
6897 ;; first unread article is the article after the last read
6898 ;; article. Sounds logical, doesn't it?
6899 (if (and (not (listp (cdr read)))
11abff8e 6900 (or (< (car read) bottom)
54506618
MB
6901 (progn (setq read (list read))
6902 nil)))
11abff8e 6903 (setq first (max bottom (1+ (cdr read))))
54506618
MB
6904 ;; `read' is a list of ranges.
6905 (when (/= (setq nlast (or (and (numberp (car read)) (car read))
6906 (caar read)))
6907 1)
11abff8e 6908 (setq first bottom))
54506618
MB
6909 (while read
6910 (when first
6911 (push (cons first nlast) unread))
6912 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
6913 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
6914 (setq read (cdr read)))))
6915 ;; And add the last unread articles.
ba0226dd
MB
6916 (cond ((not (and first last))
6917 nil)
6918 ((< first last)
6919 (push (cons first last) unread))
6920 ((= first last)
6921 (push first unread)))
54506618
MB
6922 ;; Return the sequence of unread articles.
6923 (delq 0 (nreverse unread))))
6924
eec82323
LMI
6925;; Various summary commands
6926
6748645f
LMI
6927(defun gnus-summary-select-article-buffer ()
6928 "Reconfigure windows to show article buffer."
6929 (interactive)
6930 (if (not (gnus-buffer-live-p gnus-article-buffer))
6931 (error "There is no article buffer for this summary buffer")
6932 (gnus-configure-windows 'article)
6933 (select-window (get-buffer-window gnus-article-buffer))))
6934
eec82323
LMI
6935(defun gnus-summary-universal-argument (arg)
6936 "Perform any operation on all articles that are process/prefixed."
6937 (interactive "P")
eec82323
LMI
6938 (let ((articles (gnus-summary-work-articles arg))
6939 func article)
6940 (if (eq
6941 (setq
6942 func
6943 (key-binding
6944 (read-key-sequence
6945 (substitute-command-keys
16409b0b 6946 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
eec82323
LMI
6947 'undefined)
6948 (gnus-error 1 "Undefined key")
6949 (save-excursion
6950 (while articles
6951 (gnus-summary-goto-subject (setq article (pop articles)))
6952 (let (gnus-newsgroup-processable)
6953 (command-execute func))
6954 (gnus-summary-remove-process-mark article)))))
6955 (gnus-summary-position-point))
6956
6957(defun gnus-summary-toggle-truncation (&optional arg)
6958 "Toggle truncation of summary lines.
23f87bed 6959With ARG, turn line truncation on if ARG is positive."
eec82323
LMI
6960 (interactive "P")
6961 (setq truncate-lines
6962 (if (null arg) (not truncate-lines)
6963 (> (prefix-numeric-value arg) 0)))
6964 (redraw-display))
6965
23f87bed
MB
6966(defun gnus-summary-find-for-reselect ()
6967 "Return the number of an article to stay on across a reselect.
6968The current article is considered, then following articles, then previous
6969articles. An article is sought which is not cancelled and isn't a temporary
6970insertion from another group. If there's no such then return a dummy 0."
6971 (let (found)
6972 (dolist (rev '(nil t))
6973 (unless found ; don't demand the reverse list if we don't need it
6974 (let ((data (gnus-data-find-list
6975 (gnus-summary-article-number) (gnus-data-list rev))))
6976 (while (and data (not found))
6977 (if (and (< 0 (gnus-data-number (car data)))
6978 (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
6979 (setq found (gnus-data-number (car data))))
6980 (setq data (cdr data))))))
6981 (or found 0)))
6982
eec82323
LMI
6983(defun gnus-summary-reselect-current-group (&optional all rescan)
6984 "Exit and then reselect the current newsgroup.
6985The prefix argument ALL means to select all articles."
6986 (interactive "P")
eec82323
LMI
6987 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
6988 (error "Ephemeral groups can't be reselected"))
23f87bed 6989 (let ((current-subject (gnus-summary-find-for-reselect))
eec82323
LMI
6990 (group gnus-newsgroup-name))
6991 (setq gnus-newsgroup-begin nil)
23f87bed 6992 (gnus-summary-exit nil 'leave-hidden)
eec82323
LMI
6993 ;; We have to adjust the point of group mode buffer because
6994 ;; point was moved to the next unread newsgroup by exiting.
6995 (gnus-summary-jump-to-group group)
6996 (when rescan
6997 (save-excursion
6998 (gnus-group-get-new-news-this-group 1)))
6999 (gnus-group-read-group all t)
7000 (gnus-summary-goto-subject current-subject nil t)))
7001
7002(defun gnus-summary-rescan-group (&optional all)
7003 "Exit the newsgroup, ask for new articles, and select the newsgroup."
7004 (interactive "P")
7005 (gnus-summary-reselect-current-group all t))
7006
7007(defun gnus-summary-update-info (&optional non-destructive)
7008 (save-excursion
7009 (let ((group gnus-newsgroup-name))
6748645f
LMI
7010 (when group
7011 (when gnus-newsgroup-kill-headers
7012 (setq gnus-newsgroup-killed
7013 (gnus-compress-sequence
23f87bed
MB
7014 (gnus-sorted-union
7015 (gnus-list-range-intersection
7016 gnus-newsgroup-unselected gnus-newsgroup-killed)
7017 gnus-newsgroup-unreads)
6748645f
LMI
7018 t)))
7019 (unless (listp (cdr gnus-newsgroup-killed))
7020 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
7021 (let ((headers gnus-newsgroup-headers))
7022 ;; Set the new ranges of read articles.
01c52d31 7023 (with-current-buffer gnus-group-buffer
6748645f
LMI
7024 (gnus-undo-force-boundary))
7025 (gnus-update-read-articles
23f87bed
MB
7026 group (gnus-sorted-union
7027 gnus-newsgroup-unreads gnus-newsgroup-unselected))
6748645f
LMI
7028 ;; Set the current article marks.
7029 (let ((gnus-newsgroup-scored
7030 (if (and (not gnus-save-score)
7031 (not non-destructive))
7032 nil
7033 gnus-newsgroup-scored)))
7034 (save-excursion
7035 (gnus-update-marks)))
7036 ;; Do the cross-ref thing.
7037 (when gnus-use-cross-reference
7038 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
7039 ;; Do not switch windows but change the buffer to work.
a8151ef7 7040 (set-buffer gnus-group-buffer)
6748645f
LMI
7041 (unless (gnus-ephemeral-group-p group)
7042 (gnus-group-update-group group)))))))
eec82323
LMI
7043
7044(defun gnus-summary-save-newsrc (&optional force)
7045 "Save the current number of read/marked articles in the dribble buffer.
7046The dribble buffer will then be saved.
7047If FORCE (the prefix), also save the .newsrc file(s)."
7048 (interactive "P")
7049 (gnus-summary-update-info t)
7050 (if force
7051 (gnus-save-newsrc-file)
7052 (gnus-dribble-save)))
7053
704f1663
GM
7054(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
7055
23f87bed 7056(defun gnus-summary-exit (&optional temporary leave-hidden)
eec82323 7057 "Exit reading current newsgroup, and then return to group selection mode.
16409b0b 7058`gnus-exit-group-hook' is called with no arguments if that value is non-nil."
eec82323
LMI
7059 (interactive)
7060 (gnus-set-global-variables)
16409b0b 7061 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7062 (with-current-buffer gnus-article-buffer
16409b0b
GM
7063 (mm-destroy-parts gnus-article-mime-handles)
7064 ;; Set it to nil for safety reason.
7065 (setq gnus-article-mime-handle-alist nil)
7066 (setq gnus-article-mime-handles nil)))
eec82323 7067 (gnus-kill-save-kill-buffer)
6748645f 7068 (gnus-async-halt-prefetch)
eec82323
LMI
7069 (let* ((group gnus-newsgroup-name)
7070 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
23f87bed 7071 (gnus-group-is-exiting-p t)
eec82323 7072 (mode major-mode)
23f87bed 7073 (group-point nil)
eec82323 7074 (buf (current-buffer)))
16409b0b
GM
7075 (unless quit-config
7076 ;; Do adaptive scoring, and possibly save score files.
7077 (when gnus-newsgroup-adaptive
7078 (gnus-score-adaptive))
7079 (when gnus-use-scoring
7080 (gnus-score-save)))
6748645f 7081 (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
eec82323
LMI
7082 ;; If we have several article buffers, we kill them at exit.
7083 (unless gnus-single-article-buffer
01c52d31
MB
7084 (when (gnus-buffer-live-p gnus-article-buffer)
7085 (with-current-buffer gnus-article-buffer
7086 ;; Don't kill sticky article buffers
7087 (unless (eq major-mode 'gnus-sticky-article-mode)
7088 (gnus-kill-buffer gnus-article-buffer)
7089 (setq gnus-article-current nil))))
7090 (gnus-kill-buffer gnus-original-article-buffer))
eec82323
LMI
7091 (when gnus-use-cache
7092 (gnus-cache-possibly-remove-articles)
7093 (gnus-cache-save-buffers))
7094 (gnus-async-prefetch-remove-group group)
7095 (when gnus-suppress-duplicates
7096 (gnus-dup-enter-articles))
7097 (when gnus-use-trees
7098 (gnus-tree-close group))
16409b0b
GM
7099 (when gnus-use-cache
7100 (gnus-cache-write-active))
6748645f
LMI
7101 ;; Remove entries for this group.
7102 (nnmail-purge-split-history (gnus-group-real-name group))
eec82323
LMI
7103 ;; Make all changes in this group permanent.
7104 (unless quit-config
6748645f 7105 (gnus-run-hooks 'gnus-exit-group-hook)
16409b0b 7106 (gnus-summary-update-info))
eec82323
LMI
7107 (gnus-close-group group)
7108 ;; Make sure where we were, and go to next newsgroup.
7109 (set-buffer gnus-group-buffer)
7110 (unless quit-config
7111 (gnus-group-jump-to-group group))
6748645f
LMI
7112 (gnus-run-hooks 'gnus-summary-exit-hook)
7113 (unless (or quit-config
01c52d31 7114 (not gnus-summary-next-group-on-exit)
6748645f
LMI
7115 ;; If this group has disappeared from the summary
7116 ;; buffer, don't skip forwards.
7117 (not (string= group (gnus-group-group-name))))
eec82323 7118 (gnus-group-next-unread-group 1))
a8151ef7 7119 (setq group-point (point))
eec82323
LMI
7120 (if temporary
7121 nil ;Nothing to do.
eec82323
LMI
7122 (set-buffer buf)
7123 (if (not gnus-kill-summary-on-exit)
23f87bed
MB
7124 (progn
7125 (gnus-deaden-summary)
7126 (setq mode nil))
eec82323
LMI
7127 ;; We set all buffer-local variables to nil. It is unclear why
7128 ;; this is needed, but if we don't, buffer-local variables are
7129 ;; not garbage-collected, it seems. This would the lead to en
7130 ;; ever-growing Emacs.
7131 (gnus-summary-clear-local-variables)
23f87bed
MB
7132 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7133 (gnus-summary-clear-local-variables))
eec82323
LMI
7134 (when (get-buffer gnus-article-buffer)
7135 (bury-buffer gnus-article-buffer))
eec82323
LMI
7136 ;; Return to group mode buffer.
7137 (when (eq mode 'gnus-summary-mode)
7138 (gnus-kill-buffer buf)))
7139 (setq gnus-current-select-method gnus-select-method)
d61c212b
SM
7140 (set-buffer gnus-group-buffer)
7141 (if quit-config
7142 (gnus-handle-ephemeral-exit quit-config)
4e90f2b9
SM
7143 (goto-char group-point)
7144 ;; If gnus-group-buffer is already displayed, make sure we also move
7145 ;; the cursor in the window that displays it.
7146 (let ((win (get-buffer-window (current-buffer) 0)))
7147 (if win (set-window-point win (point))))
d61c212b 7148 (unless leave-hidden
4e90f2b9 7149 (gnus-configure-windows 'group 'force)))
6748645f 7150 ;; Clear the current group name.
eec82323
LMI
7151 (unless quit-config
7152 (setq gnus-newsgroup-name nil)))))
7153
7154(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
7155(defun gnus-summary-exit-no-update (&optional no-questions)
7156 "Quit reading current newsgroup without updating read article info."
7157 (interactive)
eec82323 7158 (let* ((group gnus-newsgroup-name)
23f87bed
MB
7159 (gnus-group-is-exiting-p t)
7160 (gnus-group-is-exiting-without-update-p t)
eec82323
LMI
7161 (quit-config (gnus-group-quit-config group)))
7162 (when (or no-questions
7163 gnus-expert-user
7164 (gnus-y-or-n-p "Discard changes to this group and exit? "))
6748645f 7165 (gnus-async-halt-prefetch)
23f87bed 7166 (run-hooks 'gnus-summary-prepare-exit-hook)
16409b0b 7167 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 7168 (with-current-buffer gnus-article-buffer
16409b0b
GM
7169 (mm-destroy-parts gnus-article-mime-handles)
7170 ;; Set it to nil for safety reason.
7171 (setq gnus-article-mime-handle-alist nil)
7172 (setq gnus-article-mime-handles nil)))
eec82323
LMI
7173 ;; If we have several article buffers, we kill them at exit.
7174 (unless gnus-single-article-buffer
7175 (gnus-kill-buffer gnus-article-buffer)
7176 (gnus-kill-buffer gnus-original-article-buffer)
7177 (setq gnus-article-current nil))
7178 (if (not gnus-kill-summary-on-exit)
7179 (gnus-deaden-summary)
7180 (gnus-close-group group)
7181 (gnus-summary-clear-local-variables)
23f87bed
MB
7182 (let ((gnus-summary-local-variables gnus-newsgroup-variables))
7183 (gnus-summary-clear-local-variables))
7184 (gnus-kill-buffer gnus-summary-buffer))
eec82323
LMI
7185 (unless gnus-single-article-buffer
7186 (setq gnus-article-current nil))
7187 (when gnus-use-trees
7188 (gnus-tree-close group))
7189 (gnus-async-prefetch-remove-group group)
7190 (when (get-buffer gnus-article-buffer)
7191 (bury-buffer gnus-article-buffer))
7192 ;; Return to the group buffer.
7193 (gnus-configure-windows 'group 'force)
7194 ;; Clear the current group name.
7195 (setq gnus-newsgroup-name nil)
23f87bed
MB
7196 (unless (gnus-ephemeral-group-p group)
7197 (gnus-group-update-group group))
eec82323
LMI
7198 (when (equal (gnus-group-group-name) group)
7199 (gnus-group-next-unread-group 1))
7200 (when quit-config
23f87bed 7201 (gnus-handle-ephemeral-exit quit-config)))))
eec82323
LMI
7202
7203(defun gnus-handle-ephemeral-exit (quit-config)
6748645f
LMI
7204 "Handle movement when leaving an ephemeral group.
7205The state which existed when entering the ephemeral is reset."
eec82323
LMI
7206 (if (not (buffer-name (car quit-config)))
7207 (gnus-configure-windows 'group 'force)
7208 (set-buffer (car quit-config))
7209 (cond ((eq major-mode 'gnus-summary-mode)
23f87bed
MB
7210 (gnus-set-global-variables))
7211 ((eq major-mode 'gnus-article-mode)
c7a91ce1 7212 (save-current-buffer
23f87bed
MB
7213 ;; The `gnus-summary-buffer' variable may point
7214 ;; to the old summary buffer when using a single
7215 ;; article buffer.
7216 (unless (gnus-buffer-live-p gnus-summary-buffer)
7217 (set-buffer gnus-group-buffer))
7218 (set-buffer gnus-summary-buffer)
7219 (gnus-set-global-variables))))
eec82323 7220 (if (or (eq (cdr quit-config) 'article)
23f87bed 7221 (eq (cdr quit-config) 'pick))
01c52d31
MB
7222 (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
7223 (gnus-configure-windows 'pick 'force)
7224 (gnus-configure-windows (cdr quit-config) 'force))
eec82323
LMI
7225 (gnus-configure-windows (cdr quit-config) 'force))
7226 (when (eq major-mode 'gnus-summary-mode)
01c52d31
MB
7227 (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
7228 next-unread-noselect))
7229 (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
7230 'next-noselect)
7231 (gnus-summary-next-subject 1 nil t))
7232 ((eq gnus-auto-select-on-ephemeral-exit
7233 'next-unread-noselect)
7234 (gnus-summary-next-subject 1 t t))))
7235 ;; Hide the article buffer which displays the article different
7236 ;; from the one that the cursor points to in the summary buffer.
7237 (gnus-configure-windows 'summary 'force))
7238 (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
7239 (gnus-summary-next-subject 1))
7240 ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
7241 (gnus-summary-next-subject 1 t))))
eec82323
LMI
7242 (gnus-summary-recenter)
7243 (gnus-summary-position-point))))
7244
7245;;; Dead summaries.
7246
bbf52f1e
SM
7247(defvar gnus-dead-summary-mode-map
7248 (let ((map (make-keymap)))
7249 (suppress-keymap map)
7250 (substitute-key-definition 'undefined 'gnus-summary-wake-up-the-dead map)
7251 (dolist (key '("\C-d" "\r" "\177" [delete]))
7252 (define-key map key 'gnus-summary-wake-up-the-dead))
7253 (dolist (key '("q" "Q"))
7254 (define-key map key 'bury-buffer))
7255 map))
7256
7257(define-minor-mode gnus-dead-summary-mode
eec82323 7258 "Minor mode for Gnus summary buffers."
bbf52f1e
SM
7259 :lighter " Dead" :keymap gnus-dead-summary-mode-map
7260 (unless (derived-mode-p 'gnus-summary-mode)
7261 (setq gnus-dead-summary-mode nil)))
eec82323
LMI
7262
7263(defun gnus-deaden-summary ()
7264 "Make the current summary buffer into a dead summary buffer."
7265 ;; Kill any previous dead summary buffer.
7266 (when (and gnus-dead-summary
7267 (buffer-name gnus-dead-summary))
01c52d31 7268 (with-current-buffer gnus-dead-summary
eec82323
LMI
7269 (when gnus-dead-summary-mode
7270 (kill-buffer (current-buffer)))))
7271 ;; Make this the current dead summary.
7272 (setq gnus-dead-summary (current-buffer))
7273 (gnus-dead-summary-mode 1)
7274 (let ((name (buffer-name)))
7275 (when (string-match "Summary" name)
7276 (rename-buffer
7277 (concat (substring name 0 (match-beginning 0)) "Dead "
7278 (substring name (match-beginning 0)))
16409b0b
GM
7279 t)
7280 (bury-buffer))))
eec82323
LMI
7281
7282(defun gnus-kill-or-deaden-summary (buffer)
7283 "Kill or deaden the summary BUFFER."
6748645f
LMI
7284 (save-excursion
7285 (when (and (buffer-name buffer)
7286 (not gnus-single-article-buffer))
01c52d31 7287 (with-current-buffer buffer
6748645f
LMI
7288 (gnus-kill-buffer gnus-article-buffer)
7289 (gnus-kill-buffer gnus-original-article-buffer)))
23f87bed
MB
7290 (cond
7291 ;; Kill the buffer.
7292 (gnus-kill-summary-on-exit
7293 (when (and gnus-use-trees
7294 (gnus-buffer-exists-p buffer))
c7a91ce1 7295 (with-current-buffer buffer
23f87bed
MB
7296 (gnus-tree-close gnus-newsgroup-name)))
7297 (gnus-kill-buffer buffer))
7298 ;; Deaden the buffer.
7299 ((gnus-buffer-exists-p buffer)
c7a91ce1 7300 (with-current-buffer buffer
23f87bed 7301 (gnus-deaden-summary))))))
eec82323
LMI
7302
7303(defun gnus-summary-wake-up-the-dead (&rest args)
7304 "Wake up the dead summary buffer."
7305 (interactive)
7306 (gnus-dead-summary-mode -1)
7307 (let ((name (buffer-name)))
7308 (when (string-match "Dead " name)
7309 (rename-buffer
7310 (concat (substring name 0 (match-beginning 0))
7311 (substring name (match-end 0)))
7312 t)))
7313 (gnus-message 3 "This dead summary is now alive again"))
7314
7315;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
7316(defun gnus-summary-fetch-faq (&optional faq-dir)
7317 "Fetch the FAQ for the current group.
7318If FAQ-DIR (the prefix), prompt for a directory to search for the faq
7319in."
7320 (interactive
7321 (list
7322 (when current-prefix-arg
7323 (completing-read
8f688cb0 7324 "FAQ dir: " (and (listp gnus-group-faq-directory)
01c52d31 7325 (mapcar 'list
a8151ef7 7326 gnus-group-faq-directory))))))
eec82323
LMI
7327 (let (gnus-faq-buffer)
7328 (when (setq gnus-faq-buffer
7329 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
7330 (gnus-configure-windows 'summary-faq))))
7331
7332;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
7333(defun gnus-summary-describe-group (&optional force)
7334 "Describe the current newsgroup."
7335 (interactive "P")
7336 (gnus-group-describe-group force gnus-newsgroup-name))
7337
7338(defun gnus-summary-describe-briefly ()
7339 "Describe summary mode commands briefly."
7340 (interactive)
bdaa75c7 7341 (gnus-message 6 "%s" (substitute-command-keys "\\<gnus-summary-mode-map>\\[gnus-summary-next-page]:Select \\[gnus-summary-next-unread-article]:Forward \\[gnus-summary-prev-unread-article]:Backward \\[gnus-summary-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-summary-describe-briefly]:This help")))
eec82323
LMI
7342
7343;; Walking around group mode buffer from summary mode.
7344
7345(defun gnus-summary-next-group (&optional no-article target-group backward)
7346 "Exit current newsgroup and then select next unread newsgroup.
7347If prefix argument NO-ARTICLE is non-nil, no article is selected
23f87bed 7348initially. If TARGET-GROUP, go to this group. If BACKWARD, go to
eec82323
LMI
7349previous group instead."
7350 (interactive "P")
eec82323
LMI
7351 ;; Stop pre-fetching.
7352 (gnus-async-halt-prefetch)
7353 (let ((current-group gnus-newsgroup-name)
7354 (current-buffer (current-buffer))
7355 entered)
7356 ;; First we semi-exit this group to update Xrefs and all variables.
7357 ;; We can't do a real exit, because the window conf must remain
7358 ;; the same in case the user is prompted for info, and we don't
7359 ;; want the window conf to change before that...
7360 (gnus-summary-exit t)
7361 (while (not entered)
7362 ;; Then we find what group we are supposed to enter.
7363 (set-buffer gnus-group-buffer)
7364 (gnus-group-jump-to-group current-group)
7365 (setq target-group
7366 (or target-group
7367 (if (eq gnus-keep-same-level 'best)
7368 (gnus-summary-best-group gnus-newsgroup-name)
7369 (gnus-summary-search-group backward gnus-keep-same-level))))
7370 (if (not target-group)
7371 ;; There are no further groups, so we return to the group
7372 ;; buffer.
7373 (progn
7374 (gnus-message 5 "Returning to the group buffer")
7375 (setq entered t)
7376 (when (gnus-buffer-live-p current-buffer)
7377 (set-buffer current-buffer)
7378 (gnus-summary-exit))
6748645f 7379 (gnus-run-hooks 'gnus-group-no-more-groups-hook))
eec82323
LMI
7380 ;; We try to enter the target group.
7381 (gnus-group-jump-to-group target-group)
7382 (let ((unreads (gnus-group-group-unread)))
7383 (if (and (or (eq t unreads)
7384 (and unreads (not (zerop unreads))))
23f87bed
MB
7385 (gnus-summary-read-group
7386 target-group nil no-article
7387 (and (buffer-name current-buffer) current-buffer)
7388 nil backward))
eec82323
LMI
7389 (setq entered t)
7390 (setq current-group target-group
7391 target-group nil)))))))
7392
7393(defun gnus-summary-prev-group (&optional no-article)
7394 "Exit current newsgroup and then select previous unread newsgroup.
7395If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
7396 (interactive "P")
7397 (gnus-summary-next-group no-article nil t))
7398
7399;; Walking around summary lines.
7400
23f87bed
MB
7401(defun gnus-summary-first-subject (&optional unread undownloaded unseen)
7402 "Go to the first subject satisfying any non-nil constraint.
7403If UNREAD is non-nil, the article should be unread.
7404If UNDOWNLOADED is non-nil, the article should be undownloaded.
20a673b2 7405If UNSEEN is non-nil, the article should be unseen as well as unread.
23f87bed 7406Returns the article selected or nil if there are no matching articles."
eec82323 7407 (interactive "P")
23f87bed
MB
7408 (cond
7409 ;; Empty summary.
7410 ((null gnus-newsgroup-data)
7411 (gnus-message 3 "No articles in the group")
7412 nil)
7413 ;; Pick the first article.
7414 ((not (or unread undownloaded unseen))
7415 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
7416 (gnus-data-number (car gnus-newsgroup-data)))
7417 ;; Find the first unread article.
7418 (t
7419 (let ((data gnus-newsgroup-data))
7420 (while (and data
7421 (let ((num (gnus-data-number (car data))))
7422 (or (memq num gnus-newsgroup-unfetched)
7423 (not (or (and unread
7424 (memq num gnus-newsgroup-unreads))
7425 (and undownloaded
7426 (memq num gnus-newsgroup-undownloaded))
7427 (and unseen
20a673b2
KY
7428 (memq num gnus-newsgroup-unseen)
7429 (memq num gnus-newsgroup-unreads)))))))
23f87bed
MB
7430 (setq data (cdr data)))
7431 (prog1
7432 (if data
7433 (progn
7434 (goto-char (gnus-data-pos (car data)))
7435 (gnus-data-number (car data)))
7436 (gnus-message 3 "No more%s articles"
7437 (let* ((r (when unread " unread"))
7438 (d (when undownloaded " undownloaded"))
7439 (s (when unseen " unseen"))
7440 (l (delq nil (list r d s))))
7441 (cond ((= 3 (length l))
7442 (concat r "," d ", or" s))
7443 ((= 2 (length l))
7444 (concat (car l) ", or" (cadr l)))
7445 ((= 1 (length l))
7446 (car l))
7447 (t
7448 ""))))
7449 nil
7450 )
7451 (gnus-summary-position-point))))))
eec82323
LMI
7452
7453(defun gnus-summary-next-subject (n &optional unread dont-display)
7454 "Go to next N'th summary line.
7455If N is negative, go to the previous N'th subject line.
7456If UNREAD is non-nil, only unread articles are selected.
7457The difference between N and the actual number of steps taken is
7458returned."
7459 (interactive "p")
7460 (let ((backward (< n 0))
7461 (n (abs n)))
7462 (while (and (> n 0)
7463 (if backward
7464 (gnus-summary-find-prev unread)
7465 (gnus-summary-find-next unread)))
16409b0b
GM
7466 (unless (zerop (setq n (1- n)))
7467 (gnus-summary-show-thread)))
eec82323
LMI
7468 (when (/= 0 n)
7469 (gnus-message 7 "No more%s articles"
7470 (if unread " unread" "")))
7471 (unless dont-display
7472 (gnus-summary-recenter)
7473 (gnus-summary-position-point))
7474 n))
7475
7476(defun gnus-summary-next-unread-subject (n)
7477 "Go to next N'th unread summary line."
7478 (interactive "p")
7479 (gnus-summary-next-subject n t))
7480
7481(defun gnus-summary-prev-subject (n &optional unread)
7482 "Go to previous N'th summary line.
7483If optional argument UNREAD is non-nil, only unread article is selected."
7484 (interactive "p")
7485 (gnus-summary-next-subject (- n) unread))
7486
7487(defun gnus-summary-prev-unread-subject (n)
7488 "Go to previous N'th unread summary line."
7489 (interactive "p")
7490 (gnus-summary-next-subject (- n) t))
7491
23f87bed
MB
7492(defun gnus-summary-goto-subjects (articles)
7493 "Insert the subject header for ARTICLES in the current buffer."
7494 (save-excursion
7495 (dolist (article articles)
7496 (gnus-summary-goto-subject article t)))
7497 (gnus-summary-limit (append articles gnus-newsgroup-limit))
7498 (gnus-summary-position-point))
132cf96d 7499
eec82323 7500(defun gnus-summary-goto-subject (article &optional force silent)
d55fe5bb 7501 "Go to the subject line of ARTICLE.
eec82323
LMI
7502If FORCE, also allow jumping to articles not currently shown."
7503 (interactive "nArticle number: ")
23f87bed
MB
7504 (unless (numberp article)
7505 (error "Article %s is not a number" article))
eec82323
LMI
7506 (let ((b (point))
7507 (data (gnus-data-find article)))
7508 ;; We read in the article if we have to.
7509 (and (not data)
7510 force
6748645f
LMI
7511 (gnus-summary-insert-subject
7512 article
7513 (if (or (numberp force) (vectorp force)) force)
7514 t)
eec82323
LMI
7515 (setq data (gnus-data-find article)))
7516 (goto-char b)
7517 (if (not data)
7518 (progn
7519 (unless silent
7520 (gnus-message 3 "Can't find article %d" article))
7521 nil)
23f87bed
MB
7522 (let ((pt (gnus-data-pos data)))
7523 (goto-char pt)
7524 (gnus-summary-set-article-display-arrow pt))
6748645f 7525 (gnus-summary-position-point)
eec82323
LMI
7526 article)))
7527
7528;; Walking around summary lines with displaying articles.
7529
7530(defun gnus-summary-expand-window (&optional arg)
7531 "Make the summary buffer take up the entire Emacs frame.
7532Given a prefix, will force an `article' buffer configuration."
7533 (interactive "P")
eec82323
LMI
7534 (if arg
7535 (gnus-configure-windows 'article 'force)
7536 (gnus-configure-windows 'summary 'force)))
7537
7538(defun gnus-summary-display-article (article &optional all-header)
7539 "Display ARTICLE in article buffer."
01c52d31
MB
7540 (unless (and (gnus-buffer-live-p gnus-article-buffer)
7541 (with-current-buffer gnus-article-buffer
7542 (eq major-mode 'gnus-article-mode)))
7543 (gnus-article-setup-buffer))
eec82323 7544 (gnus-set-global-variables)
01c52d31
MB
7545 (with-current-buffer gnus-article-buffer
7546 (setq gnus-article-charset gnus-newsgroup-charset)
7547 (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
7548 (mm-enable-multibyte))
eec82323
LMI
7549 (if (null article)
7550 nil
7551 (prog1
7552 (if gnus-summary-display-article-function
7553 (funcall gnus-summary-display-article-function article all-header)
7554 (gnus-article-prepare article all-header))
6748645f 7555 (gnus-run-hooks 'gnus-select-article-hook)
eec82323
LMI
7556 (when (and gnus-current-article
7557 (not (zerop gnus-current-article)))
7558 (gnus-summary-goto-subject gnus-current-article))
7559 (gnus-summary-recenter)
7560 (when (and gnus-use-trees gnus-show-threads)
7561 (gnus-possibly-generate-tree article)
7562 (gnus-highlight-selected-tree article))
7563 ;; Successfully display article.
7564 (gnus-article-set-window-start
7565 (cdr (assq article gnus-newsgroup-bookmarks))))))
7566
7567(defun gnus-summary-select-article (&optional all-headers force pseudo article)
7568 "Select the current article.
7569If ALL-HEADERS is non-nil, show all header fields. If FORCE is
7570non-nil, the article will be re-fetched even if it already present in
7571the article buffer. If PSEUDO is non-nil, pseudo-articles will also
7572be displayed."
7573 ;; Make sure we are in the summary buffer to work around bbdb bug.
7574 (unless (eq major-mode 'gnus-summary-mode)
7575 (set-buffer gnus-summary-buffer))
7576 (let ((article (or article (gnus-summary-article-number)))
f0529b5b 7577 (all-headers (not (not all-headers))) ;Must be t or nil.
16409b0b 7578 gnus-summary-display-article-function)
eec82323
LMI
7579 (and (not pseudo)
7580 (gnus-summary-article-pseudo-p article)
a8151ef7 7581 (error "This is a pseudo-article"))
c7a91ce1 7582 (with-current-buffer gnus-summary-buffer
16409b0b
GM
7583 (if (or (and gnus-single-article-buffer
7584 (or (null gnus-current-article)
7585 (null gnus-article-current)
7586 (null (get-buffer gnus-article-buffer))
7587 (not (eq article (cdr gnus-article-current)))
7588 (not (equal (car gnus-article-current)
7589 gnus-newsgroup-name))))
7590 (and (not gnus-single-article-buffer)
7591 (or (null gnus-current-article)
7592 (not (eq gnus-current-article article))))
7593 force)
7594 ;; The requested article is different from the current article.
7595 (progn
16409b0b
GM
7596 (gnus-summary-display-article article all-headers)
7597 (when (gnus-buffer-live-p gnus-article-buffer)
23f87bed 7598 (with-current-buffer gnus-article-buffer
16409b0b 7599 (if (not gnus-article-decoded-p) ;; a local variable
87545352 7600 (mm-disable-multibyte))))
16409b0b
GM
7601 (gnus-article-set-window-start
7602 (cdr (assq article gnus-newsgroup-bookmarks)))
7603 article)
16409b0b 7604 'old))))
eec82323 7605
23f87bed
MB
7606(defun gnus-summary-force-verify-and-decrypt ()
7607 "Display buttons for signed/encrypted parts and verify/decrypt them."
7608 (interactive)
7609 (let ((mm-verify-option 'known)
7610 (mm-decrypt-option 'known)
7611 (gnus-article-emulate-mime t)
7612 (gnus-buttonized-mime-types (append (list "multipart/signed"
7613 "multipart/encrypted")
7614 gnus-buttonized-mime-types)))
7615 (gnus-summary-select-article nil 'force)))
7616
eec82323
LMI
7617(defun gnus-summary-set-current-mark (&optional current-mark)
7618 "Obsolete function."
7619 nil)
7620
7621(defun gnus-summary-next-article (&optional unread subject backward push)
7622 "Select the next article.
7623If UNREAD, only unread articles are selected.
7624If SUBJECT, only articles with SUBJECT are selected.
7625If BACKWARD, the previous article is selected instead of the next."
7626 (interactive "P")
11e95b02
MB
7627 ;; Make sure we are in the summary buffer.
7628 (unless (eq major-mode 'gnus-summary-mode)
7629 (set-buffer gnus-summary-buffer))
eec82323
LMI
7630 (cond
7631 ;; Is there such an article?
7632 ((and (gnus-summary-search-forward unread subject backward)
7633 (or (gnus-summary-display-article (gnus-summary-article-number))
7634 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
7635 (gnus-summary-position-point))
7636 ;; If not, we try the first unread, if that is wanted.
7637 ((and subject
7638 gnus-auto-select-same
7639 (gnus-summary-first-unread-article))
7640 (gnus-summary-position-point)
7641 (gnus-message 6 "Wrapped"))
7642 ;; Try to get next/previous article not displayed in this group.
7643 ((and gnus-auto-extend-newsgroup
7644 (not unread) (not subject))
7645 (gnus-summary-goto-article
7646 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
6748645f 7647 nil (count-lines (point-min) (point))))
eec82323
LMI
7648 ;; Go to next/previous group.
7649 (t
7650 (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
7651 (gnus-summary-jump-to-group gnus-newsgroup-name))
49e787c9
GM
7652 (let ((cmd (if (featurep 'xemacs)
7653 last-command-char
7654 last-command-event))
eec82323 7655 (point
01c52d31 7656 (with-current-buffer gnus-group-buffer
eec82323
LMI
7657 (point)))
7658 (group
7659 (if (eq gnus-keep-same-level 'best)
7660 (gnus-summary-best-group gnus-newsgroup-name)
7661 (gnus-summary-search-group backward gnus-keep-same-level))))
7662 ;; For some reason, the group window gets selected. We change
7663 ;; it back.
7664 (select-window (get-buffer-window (current-buffer)))
7665 ;; Select next unread newsgroup automagically.
7666 (cond
7667 ((or (not gnus-auto-select-next)
7668 (not cmd))
7669 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
7670 ((or (eq gnus-auto-select-next 'quietly)
7671 (and (eq gnus-auto-select-next 'slightly-quietly)
7672 push)
7673 (and (eq gnus-auto-select-next 'almost-quietly)
7674 (gnus-summary-last-article-p)))
7675 ;; Select quietly.
7676 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
7677 (gnus-summary-exit)
7678 (gnus-message 7 "No more%s articles (%s)..."
7679 (if unread " unread" "")
7680 (if group (concat "selecting " group)
7681 "exiting"))
7682 (gnus-summary-next-group nil group backward)))
7683 (t
7684 (when (gnus-key-press-event-p last-input-event)
7685 (gnus-summary-walk-group-buffer
7686 gnus-newsgroup-name cmd unread backward point))))))))
7687
7688(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
7689 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
7690 (?\C-p (gnus-group-prev-unread-group 1))))
7691 (cursor-in-echo-area t)
23f87bed 7692 keve key group ended prompt)
c7a91ce1 7693 (with-current-buffer gnus-group-buffer
eec82323
LMI
7694 (goto-char start)
7695 (setq group
7696 (if (eq gnus-keep-same-level 'best)
7697 (gnus-summary-best-group gnus-newsgroup-name)
7698 (gnus-summary-search-group backward gnus-keep-same-level))))
7699 (while (not ended)
23f87bed
MB
7700 (setq prompt
7701 (format
7702 "No more%s articles%s " (if unread " unread" "")
7703 (if (and group
7704 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
7705 (format " (Type %s for %s [%s])"
91472578
MB
7706 (single-key-description cmd)
7707 (gnus-group-decoded-name group)
01c52d31 7708 (gnus-group-unread group))
23f87bed
MB
7709 (format " (Type %s to exit %s)"
7710 (single-key-description cmd)
91472578 7711 (gnus-group-decoded-name gnus-newsgroup-name)))))
eec82323 7712 ;; Confirm auto selection.
23f87bed
MB
7713 (setq key (car (setq keve (gnus-read-event-char prompt)))
7714 ended t)
eec82323
LMI
7715 (cond
7716 ((assq key keystrokes)
7717 (let ((obuf (current-buffer)))
7718 (switch-to-buffer gnus-group-buffer)
7719 (when group
7720 (gnus-group-jump-to-group group))
7721 (eval (cadr (assq key keystrokes)))
7722 (setq group (gnus-group-group-name))
7723 (switch-to-buffer obuf))
7724 (setq ended nil))
7725 ((equal key cmd)
7726 (if (or (not group)
7727 (gnus-ephemeral-group-p gnus-newsgroup-name))
7728 (gnus-summary-exit)
7729 (gnus-summary-next-group nil group backward)))
7730 (t
7731 (push (cdr keve) unread-command-events))))))
7732
7733(defun gnus-summary-next-unread-article ()
7734 "Select unread article after current one."
7735 (interactive)
7736 (gnus-summary-next-article
7737 (or (not (eq gnus-summary-goto-unread 'never))
7738 (gnus-summary-last-article-p (gnus-summary-article-number)))
7739 (and gnus-auto-select-same
7740 (gnus-summary-article-subject))))
7741
7742(defun gnus-summary-prev-article (&optional unread subject)
bbbe940b 7743 "Select the article before the current one.
eec82323
LMI
7744If UNREAD is non-nil, only unread articles are selected."
7745 (interactive "P")
7746 (gnus-summary-next-article unread subject t))
7747
7748(defun gnus-summary-prev-unread-article ()
7749 "Select unread article before current one."
7750 (interactive)
7751 (gnus-summary-prev-article
7752 (or (not (eq gnus-summary-goto-unread 'never))
7753 (gnus-summary-first-article-p (gnus-summary-article-number)))
7754 (and gnus-auto-select-same
7755 (gnus-summary-article-subject))))
7756
23f87bed 7757(defun gnus-summary-next-page (&optional lines circular stop)
eec82323
LMI
7758 "Show next page of the selected article.
7759If at the end of the current article, select the next article.
7760LINES says how many lines should be scrolled up.
7761
7762If CIRCULAR is non-nil, go to the start of the article instead of
7763selecting the next article when reaching the end of the current
23f87bed
MB
7764article.
7765
7766If STOP is non-nil, just stop when reaching the end of the message.
7767
7768Also see the variable `gnus-article-skip-boring'."
eec82323
LMI
7769 (interactive "P")
7770 (setq gnus-summary-buffer (current-buffer))
7771 (gnus-set-global-variables)
7772 (let ((article (gnus-summary-article-number))
7773 (article-window (get-buffer-window gnus-article-buffer t))
7774 endp)
6748645f
LMI
7775 ;; If the buffer is empty, we have no article.
7776 (unless article
7777 (error "No article to select"))
eec82323
LMI
7778 (gnus-configure-windows 'article)
7779 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
7780 (if (and (eq gnus-summary-goto-unread 'never)
7781 (not (gnus-summary-last-article-p article)))
7782 (gnus-summary-next-article)
7783 (gnus-summary-next-unread-article))
7784 (if (or (null gnus-current-article)
7785 (null gnus-article-current)
7786 (/= article (cdr gnus-article-current))
7787 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7788 ;; Selected subject is different from current article's.
7789 (gnus-summary-display-article article)
7790 (when article-window
7791 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed
MB
7792 (setq endp (or (gnus-article-next-page lines)
7793 (gnus-article-only-boring-p))))
eec82323 7794 (when endp
b1992461 7795 (cond ((or stop gnus-summary-stop-at-end-of-message)
23f87bed
MB
7796 (gnus-message 3 "End of message"))
7797 (circular
eec82323
LMI
7798 (gnus-summary-beginning-of-article))
7799 (lines
7800 (gnus-message 3 "End of message"))
7801 ((null lines)
7802 (if (and (eq gnus-summary-goto-unread 'never)
7803 (not (gnus-summary-last-article-p article)))
7804 (gnus-summary-next-article)
7805 (gnus-summary-next-unread-article))))))))
7806 (gnus-summary-recenter)
7807 (gnus-summary-position-point)))
7808
7809(defun gnus-summary-prev-page (&optional lines move)
7810 "Show previous page of selected article.
7811Argument LINES specifies lines to be scrolled down.
7812If MOVE, move to the previous unread article if point is at
7813the beginning of the buffer."
7814 (interactive "P")
eec82323
LMI
7815 (let ((article (gnus-summary-article-number))
7816 (article-window (get-buffer-window gnus-article-buffer t))
7817 endp)
7818 (gnus-configure-windows 'article)
7819 (if (or (null gnus-current-article)
7820 (null gnus-article-current)
7821 (/= article (cdr gnus-article-current))
7822 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
7823 ;; Selected subject is different from current article's.
7824 (gnus-summary-display-article article)
7825 (gnus-summary-recenter)
7826 (when article-window
7827 (gnus-eval-in-buffer-window gnus-article-buffer
7828 (setq endp (gnus-article-prev-page lines)))
7829 (when (and move endp)
7830 (cond (lines
7831 (gnus-message 3 "Beginning of message"))
7832 ((null lines)
7833 (if (and (eq gnus-summary-goto-unread 'never)
7834 (not (gnus-summary-first-article-p article)))
7835 (gnus-summary-prev-article)
7836 (gnus-summary-prev-unread-article))))))))
7837 (gnus-summary-position-point))
7838
7839(defun gnus-summary-prev-page-or-article (&optional lines)
7840 "Show previous page of selected article.
7841Argument LINES specifies lines to be scrolled down.
7842If at the beginning of the article, go to the next article."
7843 (interactive "P")
7844 (gnus-summary-prev-page lines t))
7845
7846(defun gnus-summary-scroll-up (lines)
7847 "Scroll up (or down) one line current article.
7848Argument LINES specifies lines to be scrolled up (or down if negative)."
7849 (interactive "p")
eec82323
LMI
7850 (gnus-configure-windows 'article)
7851 (gnus-summary-show-thread)
7852 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
7853 (gnus-eval-in-buffer-window gnus-article-buffer
7854 (cond ((> lines 0)
7855 (when (gnus-article-next-page lines)
7856 (gnus-message 3 "End of message")))
7857 ((< lines 0)
7858 (gnus-article-prev-page (- lines))))))
7859 (gnus-summary-recenter)
7860 (gnus-summary-position-point))
7861
6748645f
LMI
7862(defun gnus-summary-scroll-down (lines)
7863 "Scroll down (or up) one line current article.
7864Argument LINES specifies lines to be scrolled down (or up if negative)."
7865 (interactive "p")
7866 (gnus-summary-scroll-up (- lines)))
7867
eec82323
LMI
7868(defun gnus-summary-next-same-subject ()
7869 "Select next article which has the same subject as current one."
7870 (interactive)
eec82323
LMI
7871 (gnus-summary-next-article nil (gnus-summary-article-subject)))
7872
7873(defun gnus-summary-prev-same-subject ()
7874 "Select previous article which has the same subject as current one."
7875 (interactive)
eec82323
LMI
7876 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
7877
7878(defun gnus-summary-next-unread-same-subject ()
7879 "Select next unread article which has the same subject as current one."
7880 (interactive)
eec82323
LMI
7881 (gnus-summary-next-article t (gnus-summary-article-subject)))
7882
7883(defun gnus-summary-prev-unread-same-subject ()
7884 "Select previous unread article which has the same subject as current one."
7885 (interactive)
eec82323
LMI
7886 (gnus-summary-prev-article t (gnus-summary-article-subject)))
7887
7888(defun gnus-summary-first-unread-article ()
7889 "Select the first unread article.
7890Return nil if there are no unread articles."
7891 (interactive)
eec82323
LMI
7892 (prog1
7893 (when (gnus-summary-first-subject t)
7894 (gnus-summary-show-thread)
7895 (gnus-summary-first-subject t)
7896 (gnus-summary-display-article (gnus-summary-article-number)))
7897 (gnus-summary-position-point)))
7898
16409b0b
GM
7899(defun gnus-summary-first-unread-subject ()
7900 "Place the point on the subject line of the first unread article.
7901Return nil if there are no unread articles."
7902 (interactive)
7903 (prog1
7904 (when (gnus-summary-first-subject t)
7905 (gnus-summary-show-thread)
7906 (gnus-summary-first-subject t))
7907 (gnus-summary-position-point)))
7908
23f87bed
MB
7909(defun gnus-summary-first-unseen-subject ()
7910 "Place the point on the subject line of the first unseen article.
7911Return nil if there are no unseen articles."
7912 (interactive)
7913 (prog1
7914 (when (gnus-summary-first-subject nil nil t)
7915 (gnus-summary-show-thread)
7916 (gnus-summary-first-subject nil nil t))
7917 (gnus-summary-position-point)))
7918
7919(defun gnus-summary-first-unseen-or-unread-subject ()
20a673b2
KY
7920 "Place the point on the subject line of the first unseen and unread article.
7921If all article have been seen, on the subject line of the first unread
23f87bed
MB
7922article."
7923 (interactive)
7924 (prog1
7925 (unless (when (gnus-summary-first-subject nil nil t)
7926 (gnus-summary-show-thread)
7927 (gnus-summary-first-subject nil nil t))
7928 (when (gnus-summary-first-subject t)
7929 (gnus-summary-show-thread)
7930 (gnus-summary-first-subject t)))
7931 (gnus-summary-position-point)))
7932
eec82323
LMI
7933(defun gnus-summary-first-article ()
7934 "Select the first article.
7935Return nil if there are no articles."
7936 (interactive)
eec82323
LMI
7937 (prog1
7938 (when (gnus-summary-first-subject)
16409b0b
GM
7939 (gnus-summary-show-thread)
7940 (gnus-summary-first-subject)
7941 (gnus-summary-display-article (gnus-summary-article-number)))
eec82323
LMI
7942 (gnus-summary-position-point)))
7943
23f87bed
MB
7944(defun gnus-summary-best-unread-article (&optional arg)
7945 "Select the unread article with the highest score.
7946If given a prefix argument, select the next unread article that has a
7947score higher than the default score."
7948 (interactive "P")
7949 (let ((article (if arg
7950 (gnus-summary-better-unread-subject)
7951 (gnus-summary-best-unread-subject))))
7952 (if article
7953 (gnus-summary-goto-article article)
7954 (error "No unread articles"))))
7955
7956(defun gnus-summary-best-unread-subject ()
7957 "Select the unread subject with the highest score."
eec82323 7958 (interactive)
eec82323
LMI
7959 (let ((best -1000000)
7960 (data gnus-newsgroup-data)
7961 article score)
7962 (while data
7963 (and (gnus-data-unread-p (car data))
7964 (> (setq score
7965 (gnus-summary-article-score (gnus-data-number (car data))))
7966 best)
7967 (setq best score
7968 article (gnus-data-number (car data))))
7969 (setq data (cdr data)))
23f87bed
MB
7970 (when article
7971 (gnus-summary-goto-subject article))
7972 (gnus-summary-position-point)
7973 article))
7974
7975(defun gnus-summary-better-unread-subject ()
7976 "Select the first unread subject that has a score over the default score."
7977 (interactive)
7978 (let ((data gnus-newsgroup-data)
7979 article score)
7980 (while (and (setq article (gnus-data-number (car data)))
7981 (or (gnus-data-read-p (car data))
7982 (not (> (gnus-summary-article-score article)
7983 gnus-summary-default-score))))
7984 (setq data (cdr data)))
7985 (when article
7986 (gnus-summary-goto-subject article))
7987 (gnus-summary-position-point)
7988 article))
eec82323
LMI
7989
7990(defun gnus-summary-last-subject ()
7991 "Go to the last displayed subject line in the group."
7992 (let ((article (gnus-data-number (car (gnus-data-list t)))))
7993 (when article
7994 (gnus-summary-goto-subject article))))
7995
7996(defun gnus-summary-goto-article (article &optional all-headers force)
6748645f
LMI
7997 "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
7998If ALL-HEADERS is non-nil, no header lines are hidden.
7999If FORCE, go to the article even if it isn't displayed. If FORCE
8000is a number, it is the line the article is to be displayed on."
eec82323
LMI
8001 (interactive
8002 (list
6748645f
LMI
8003 (completing-read
8004 "Article number or Message-ID: "
8005 (mapcar (lambda (number) (list (int-to-string number)))
8006 gnus-newsgroup-limit))
eec82323
LMI
8007 current-prefix-arg
8008 t))
8009 (prog1
6748645f 8010 (if (and (stringp article)
23f87bed 8011 (string-match "@\\|%40" article))
6748645f
LMI
8012 (gnus-summary-refer-article article)
8013 (when (stringp article)
8014 (setq article (string-to-number article)))
8015 (if (gnus-summary-goto-subject article force)
8016 (gnus-summary-display-article article all-headers)
8017 (gnus-message 4 "Couldn't go to article %s" article) nil))
eec82323
LMI
8018 (gnus-summary-position-point)))
8019
8020(defun gnus-summary-goto-last-article ()
8021 "Go to the previously read article."
8022 (interactive)
8023 (prog1
8024 (when gnus-last-article
6748645f 8025 (gnus-summary-goto-article gnus-last-article nil t))
eec82323
LMI
8026 (gnus-summary-position-point)))
8027
8028(defun gnus-summary-pop-article (number)
8029 "Pop one article off the history and go to the previous.
8030NUMBER articles will be popped off."
8031 (interactive "p")
8032 (let (to)
8033 (setq gnus-newsgroup-history
8034 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
8035 (if to
6748645f 8036 (gnus-summary-goto-article (car to) nil t)
eec82323
LMI
8037 (error "Article history empty")))
8038 (gnus-summary-position-point))
8039
8040;; Summary commands and functions for limiting the summary buffer.
8041
8042(defun gnus-summary-limit-to-articles (n)
8043 "Limit the summary buffer to the next N articles.
8044If not given a prefix, use the process marked articles instead."
8045 (interactive "P")
eec82323
LMI
8046 (prog1
8047 (let ((articles (gnus-summary-work-articles n)))
8048 (setq gnus-newsgroup-processable nil)
8049 (gnus-summary-limit articles))
8050 (gnus-summary-position-point)))
8051
8052(defun gnus-summary-pop-limit (&optional total)
8053 "Restore the previous limit.
8054If given a prefix, remove all limits."
8055 (interactive "P")
eec82323
LMI
8056 (when total
8057 (setq gnus-newsgroup-limits
8058 (list (mapcar (lambda (h) (mail-header-number h))
8059 gnus-newsgroup-headers))))
8060 (unless gnus-newsgroup-limits
8061 (error "No limit to pop"))
8062 (prog1
8063 (gnus-summary-limit nil 'pop)
8064 (gnus-summary-position-point)))
8065
47b63dfa
SZ
8066(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
8067 "Limit the summary buffer to articles that have subjects that match a regexp.
8068If NOT-MATCHING, excluding articles that have subjects that match a regexp."
a1506d29 8069 (interactive
47b63dfa
SZ
8070 (list (read-string (if current-prefix-arg
8071 "Exclude subject (regexp): "
a1506d29 8072 "Limit to subject (regexp): "))
47b63dfa 8073 nil current-prefix-arg))
eec82323
LMI
8074 (unless header
8075 (setq header "subject"))
8076 (when (not (equal "" subject))
8077 (prog1
8078 (let ((articles (gnus-summary-find-matching
a1506d29 8079 (or header "subject") subject 'all nil nil
47b63dfa 8080 not-matching)))
eec82323
LMI
8081 (unless articles
8082 (error "Found no matches for \"%s\"" subject))
8083 (gnus-summary-limit articles))
8084 (gnus-summary-position-point))))
8085
ef6e0ec7 8086(defun gnus-summary-limit-to-author (from &optional not-matching)
47b63dfa
SZ
8087 "Limit the summary buffer to articles that have authors that match a regexp.
8088If NOT-MATCHING, excluding articles that have authors that match a regexp."
a1506d29 8089 (interactive
47b63dfa
SZ
8090 (list (read-string (if current-prefix-arg
8091 "Exclude author (regexp): "
a1506d29 8092 "Limit to author (regexp): "))
ef6e0ec7
SZ
8093 current-prefix-arg))
8094 (gnus-summary-limit-to-subject from "from" not-matching))
eec82323 8095
01c52d31
MB
8096(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
8097 "Limit the summary buffer to articles with the given RECIPIENT.
8098
8099If NOT-MATCHING, exclude RECIPIENT.
8100
8101To and Cc headers are checked. You need to include them in
8102`nnmail-extra-headers'."
8103 ;; Unlike `rmail-summary-by-recipients', doesn't include From.
8104 (interactive
8105 (list (read-string (format "%s recipient (regexp): "
8106 (if current-prefix-arg "Exclude" "Limit to")))
8107 current-prefix-arg))
8108 (when (not (equal "" recipient))
8109 (prog1 (let* ((to
8110 (if (memq 'To nnmail-extra-headers)
8111 (gnus-summary-find-matching
8112 (cons 'extra 'To) recipient 'all nil nil
8113 not-matching)
8114 (gnus-message
8115 1 "`To' isn't present in `nnmail-extra-headers'")
8116 (sit-for 1)
8117 nil))
8118 (cc
8119 (if (memq 'Cc nnmail-extra-headers)
8120 (gnus-summary-find-matching
8121 (cons 'extra 'Cc) recipient 'all nil nil
8122 not-matching)
8123 (gnus-message
8124 1 "`Cc' isn't present in `nnmail-extra-headers'")
8125 (sit-for 1)
8126 nil))
8127 (articles
8128 (if not-matching
8129 ;; We need the numbers that are in both lists:
8130 (mapcar (lambda (a)
8131 (and (memq a to) a))
8132 cc)
8133 (nconc to cc))))
8134 (unless articles
8135 (error "Found no matches for \"%s\"" recipient))
8136 (gnus-summary-limit articles))
8137 (gnus-summary-position-point))))
8138
8139(defun gnus-summary-limit-to-address (address &optional not-matching)
8140 "Limit the summary buffer to articles with the given ADDRESS.
8141
8142If NOT-MATCHING, exclude ADDRESS.
8143
8144To, Cc and From headers are checked. You need to include `To' and `Cc'
8145in `nnmail-extra-headers'."
8146 (interactive
8147 (list (read-string (format "%s address (regexp): "
8148 (if current-prefix-arg "Exclude" "Limit to")))
8149 current-prefix-arg))
8150 (when (not (equal "" address))
8151 (prog1 (let* ((to
8152 (if (memq 'To nnmail-extra-headers)
8153 (gnus-summary-find-matching
8154 (cons 'extra 'To) address 'all nil nil
8155 not-matching)
8156 (gnus-message
8157 1 "`To' isn't present in `nnmail-extra-headers'")
8158 (sit-for 1)
8159 t))
8160 (cc
8161 (if (memq 'Cc nnmail-extra-headers)
8162 (gnus-summary-find-matching
8163 (cons 'extra 'Cc) address 'all nil nil
8164 not-matching)
8165 (gnus-message
8166 1 "`Cc' isn't present in `nnmail-extra-headers'")
8167 (sit-for 1)
8168 t))
8169 (from
8170 (gnus-summary-find-matching "from" address
8171 'all nil nil not-matching))
8172 (articles
8173 (if not-matching
8174 ;; We need the numbers that are in all lists:
8175 (if (eq cc t)
8176 (if (eq to t)
8177 from
8178 (mapcar (lambda (a) (car (memq a from))) to))
8179 (if (eq to t)
8180 (mapcar (lambda (a) (car (memq a from))) cc)
8181 (mapcar (lambda (a) (car (memq a from)))
8182 (mapcar (lambda (a) (car (memq a to)))
8183 cc))))
8184 (nconc (if (eq to t) nil to)
8185 (if (eq cc t) nil cc)
8186 from))))
8187 (unless articles
8188 (error "Found no matches for \"%s\"" address))
8189 (gnus-summary-limit articles))
8190 (gnus-summary-position-point))))
8191
8192(defun gnus-summary-limit-strange-charsets-predicate (header)
765d4319
KY
8193 (when (fboundp 'char-charset)
8194 (let ((string (concat (mail-header-subject header)
8195 (mail-header-from header)))
8196 charset found)
8197 (dotimes (i (1- (length string)))
8198 (setq charset (format "%s" (char-charset (aref string (1+ i)))))
8199 (when (string-match "unicode\\|big\\|japanese" charset)
8200 (setq found t)))
8201 found)))
01c52d31
MB
8202
8203(defun gnus-summary-limit-to-predicate (predicate)
8204 "Limit to articles where PREDICATE returns non-nil.
8205PREDICATE will be called with the header structures of the
8206articles."
8207 (let ((articles nil)
8208 (case-fold-search t))
8209 (dolist (header gnus-newsgroup-headers)
8210 (when (funcall predicate header)
8211 (push (mail-header-number header) articles)))
8212 (gnus-summary-limit (nreverse articles))))
8213
eec82323
LMI
8214(defun gnus-summary-limit-to-age (age &optional younger-p)
8215 "Limit the summary buffer to articles that are older than (or equal) AGE days.
8216If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
8217articles that are younger than AGE days."
16409b0b
GM
8218 (interactive
8219 (let ((younger current-prefix-arg)
8220 (days-got nil)
8221 days)
8222 (while (not days-got)
8223 (setq days (if younger
23f87bed
MB
8224 (read-string "Limit to articles younger than (in days, older when negative): ")
8225 (read-string
8226 "Limit to articles older than (in days, younger when negative): ")))
16409b0b
GM
8227 (when (> (length days) 0)
8228 (setq days (read days)))
8229 (if (numberp days)
23f87bed
MB
8230 (progn
8231 (setq days-got t)
01c52d31
MB
8232 (when (< days 0)
8233 (setq younger (not younger))
8234 (setq days (* days -1))))
16409b0b
GM
8235 (message "Please enter a number.")
8236 (sleep-for 1)))
8237 (list days younger)))
eec82323
LMI
8238 (prog1
8239 (let ((data gnus-newsgroup-data)
16409b0b 8240 (cutoff (days-to-time age))
eec82323
LMI
8241 articles d date is-younger)
8242 (while (setq d (pop data))
8243 (when (and (vectorp (gnus-data-header d))
8244 (setq date (mail-header-date (gnus-data-header d))))
16409b0b 8245 (setq is-younger (time-less-p
3d6e7a43 8246 (time-since (gnus-date-get-time date))
eec82323 8247 cutoff))
6748645f
LMI
8248 (when (if younger-p
8249 is-younger
8250 (not is-younger))
eec82323
LMI
8251 (push (gnus-data-number d) articles))))
8252 (gnus-summary-limit (nreverse articles)))
8253 (gnus-summary-position-point)))
8254
47b63dfa 8255(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
16409b0b
GM
8256 "Limit the summary buffer to articles that match an 'extra' header."
8257 (interactive
8258 (let ((header
8259 (intern
23f87bed 8260 (gnus-completing-read-with-default
16409b0b 8261 (symbol-name (car gnus-extra-headers))
47b63dfa 8262 (if current-prefix-arg
81df110a
RF
8263 "Exclude extra header"
8264 "Limit extra header")
16409b0b
GM
8265 (mapcar (lambda (x)
8266 (cons (symbol-name x) x))
8267 gnus-extra-headers)
8268 nil
8269 t))))
8270 (list header
a1506d29 8271 (read-string (format "%s header %s (regexp): "
47b63dfa
SZ
8272 (if current-prefix-arg "Exclude" "Limit to")
8273 header))
8274 current-prefix-arg)))
16409b0b
GM
8275 (when (not (equal "" regexp))
8276 (prog1
8277 (let ((articles (gnus-summary-find-matching
a1506d29 8278 (cons 'extra header) regexp 'all nil nil
47b63dfa 8279 not-matching)))
16409b0b
GM
8280 (unless articles
8281 (error "Found no matches for \"%s\"" regexp))
8282 (gnus-summary-limit articles))
8283 (gnus-summary-position-point))))
8284
23f87bed
MB
8285(defun gnus-summary-limit-to-display-predicate ()
8286 "Limit the summary buffer to the predicated in the `display' group parameter."
8287 (interactive)
8288 (unless gnus-newsgroup-display
8289 (error "There is no `display' group parameter"))
8290 (let (articles)
8291 (dolist (number gnus-newsgroup-articles)
8292 (when (funcall gnus-newsgroup-display)
8293 (push number articles)))
8294 (gnus-summary-limit articles))
8295 (gnus-summary-position-point))
8296
eec82323
LMI
8297(defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
8298(make-obsolete
265ac10b 8299 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread "Emacs 20.4")
eec82323
LMI
8300
8301(defun gnus-summary-limit-to-unread (&optional all)
8302 "Limit the summary buffer to articles that are not marked as read.
8303If ALL is non-nil, limit strictly to unread articles."
8304 (interactive "P")
8305 (if all
8306 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
8307 (gnus-summary-limit-to-marks
8308 ;; Concat all the marks that say that an article is read and have
8309 ;; those removed.
8310 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
23f87bed 8311 gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
eec82323
LMI
8312 gnus-low-score-mark gnus-expirable-mark
8313 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
c4d82de8 8314 gnus-duplicate-mark)
eec82323
LMI
8315 'reverse)))
8316
01c52d31
MB
8317(defun gnus-summary-limit-to-headers (match &optional reverse)
8318 "Limit the summary buffer to articles that have headers that match MATCH.
8319If REVERSE (the prefix), limit to articles that don't match."
8320 (interactive "sMatch headers (regexp): \nP")
8321 (gnus-summary-limit-to-bodies match reverse t))
8322
8323(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
8324 "Limit the summary buffer to articles that have bodies that match MATCH.
8325If REVERSE (the prefix), limit to articles that don't match."
8326 (interactive "sMatch body (regexp): \nP")
8327 (let ((articles nil)
8328 (gnus-select-article-hook nil) ;Disable hook.
8329 (gnus-article-prepare-hook nil)
8330 (gnus-use-article-prefetch nil)
8331 (gnus-keep-backlog nil)
8332 (gnus-break-pages nil)
8333 (gnus-summary-display-arrow nil)
8334 (gnus-updated-mode-lines nil)
8335 (gnus-auto-center-summary nil)
8336 (gnus-display-mime-function nil))
8337 (dolist (data gnus-newsgroup-data)
8338 (let (gnus-mark-article-hook)
8339 (gnus-summary-select-article t t nil (gnus-data-number data)))
398a825b 8340 (with-current-buffer gnus-article-buffer
01c52d31
MB
8341 (article-goto-body)
8342 (let* ((case-fold-search t)
8343 (found (if headersp
8344 (re-search-backward match nil t)
8345 (re-search-forward match nil t))))
8346 (when (or (and found
8347 (not reverse))
8348 (and (not found)
8349 reverse))
8350 (push (gnus-data-number data) articles)))))
8351 (if (not articles)
8352 (message "No messages matched")
8353 (gnus-summary-limit articles)))
8354 (gnus-summary-position-point))
8355
8356(defun gnus-summary-limit-to-singletons (&optional threadsp)
8357 "Limit the summary buffer to articles that aren't part on any thread.
8358If THREADSP (the prefix), limit to articles that are in threads."
8359 (interactive "P")
8360 (let ((articles nil)
8361 thread-articles
8362 threads)
8363 (dolist (thread gnus-newsgroup-threads)
8364 (if (stringp (car thread))
8365 (dolist (thread (cdr thread))
8366 (push thread threads))
8367 (push thread threads)))
8368 (dolist (thread threads)
8369 (setq thread-articles (gnus-articles-in-thread thread))
8370 (when (or (and threadsp
8371 (> (length thread-articles) 1))
8372 (and (not threadsp)
8373 (= (length thread-articles) 1)))
8374 (setq articles (nconc thread-articles articles))))
8375 (if (not articles)
8376 (message "No messages matched")
8377 (gnus-summary-limit articles))
8378 (gnus-summary-position-point)))
8379
8380(defun gnus-summary-limit-to-replied (&optional unreplied)
8381 "Limit the summary buffer to replied articles.
8382If UNREPLIED (the prefix), limit to unreplied articles."
8383 (interactive "P")
8384 (if unreplied
8385 (gnus-summary-limit
8386 (gnus-set-difference gnus-newsgroup-articles
8387 gnus-newsgroup-replied))
8388 (gnus-summary-limit gnus-newsgroup-replied))
8389 (gnus-summary-position-point))
8390
eec82323
LMI
8391(defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-exclude-marks)
8392(make-obsolete 'gnus-summary-delete-marked-with
265ac10b 8393 'gnus-summary-limit-exclude-marks "Emacs 20.4")
eec82323
LMI
8394
8395(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
8396 "Exclude articles that are marked with MARKS (e.g. \"DK\").
8397If REVERSE, limit the summary buffer to articles that are marked
8398with MARKS. MARKS can either be a string of marks or a list of marks.
8399Returns how many articles were removed."
8400 (interactive "sMarks: ")
8401 (gnus-summary-limit-to-marks marks t))
8402
8403(defun gnus-summary-limit-to-marks (marks &optional reverse)
8404 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
8405If REVERSE (the prefix), limit the summary buffer to articles that are
8406not marked with MARKS. MARKS can either be a string of marks or a
8407list of marks.
8408Returns how many articles were removed."
6748645f 8409 (interactive "sMarks: \nP")
eec82323
LMI
8410 (prog1
8411 (let ((data gnus-newsgroup-data)
8412 (marks (if (listp marks) marks
8413 (append marks nil))) ; Transform to list.
8414 articles)
8415 (while data
8416 (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
8417 (memq (gnus-data-mark (car data)) marks))
8418 (push (gnus-data-number (car data)) articles))
8419 (setq data (cdr data)))
8420 (gnus-summary-limit articles))
8421 (gnus-summary-position-point)))
8422
23f87bed 8423(defun gnus-summary-limit-to-score (score)
eec82323 8424 "Limit to articles with score at or above SCORE."
23f87bed 8425 (interactive "NLimit to articles with score of at least: ")
eec82323
LMI
8426 (let ((data gnus-newsgroup-data)
8427 articles)
8428 (while data
8429 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
8430 score)
8431 (push (gnus-data-number (car data)) articles))
8432 (setq data (cdr data)))
8433 (prog1
8434 (gnus-summary-limit articles)
8435 (gnus-summary-position-point))))
8436
23f87bed
MB
8437(defun gnus-summary-limit-to-unseen ()
8438 "Limit to unseen articles."
8439 (interactive)
8440 (prog1
8441 (gnus-summary-limit gnus-newsgroup-unseen)
8442 (gnus-summary-position-point)))
8443
6748645f 8444(defun gnus-summary-limit-include-thread (id)
23f87bed
MB
8445 "Display all the hidden articles that is in the thread with ID in it.
8446When called interactively, ID is the Message-ID of the current
8447article."
6748645f
LMI
8448 (interactive (list (mail-header-id (gnus-summary-article-header))))
8449 (let ((articles (gnus-articles-in-thread
8450 (gnus-id-to-thread (gnus-root-id id)))))
8451 (prog1
8452 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
23f87bed
MB
8453 (gnus-summary-limit-include-matching-articles
8454 "subject"
8455 (regexp-quote (gnus-simplify-subject-re
8456 (mail-header-subject (gnus-id-to-header id)))))
6748645f
LMI
8457 (gnus-summary-position-point))))
8458
23f87bed
MB
8459(defun gnus-summary-limit-include-matching-articles (header regexp)
8460 "Display all the hidden articles that have HEADERs that match REGEXP."
8461 (interactive (list (read-string "Match on header: ")
8462 (read-string "Regexp: ")))
8463 (let ((articles (gnus-find-matching-articles header regexp)))
8464 (prog1
8465 (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
8466 (gnus-summary-position-point))))
8467
8468(defun gnus-summary-insert-dormant-articles ()
8469 "Insert all the dormant articles for this group into the current buffer."
8470 (interactive)
8471 (let ((gnus-verbose (max 6 gnus-verbose)))
8472 (if (not gnus-newsgroup-dormant)
db629244 8473 (gnus-message 3 "No dormant articles for this group")
23f87bed
MB
8474 (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
8475
01c52d31
MB
8476(defun gnus-summary-insert-ticked-articles ()
8477 "Insert ticked articles for this group into the current buffer."
8478 (interactive)
8479 (let ((gnus-verbose (max 6 gnus-verbose)))
8480 (if (not gnus-newsgroup-marked)
8481 (gnus-message 3 "No ticked articles for this group")
8482 (gnus-summary-goto-subjects gnus-newsgroup-marked))))
8483
eec82323 8484(defun gnus-summary-limit-include-dormant ()
6748645f
LMI
8485 "Display all the hidden articles that are marked as dormant.
8486Note that this command only works on a subset of the articles currently
8487fetched for this group."
eec82323 8488 (interactive)
eec82323
LMI
8489 (unless gnus-newsgroup-dormant
8490 (error "There are no dormant articles in this group"))
8491 (prog1
8492 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
8493 (gnus-summary-position-point)))
8494
8495(defun gnus-summary-limit-exclude-dormant ()
8496 "Hide all dormant articles."
8497 (interactive)
eec82323
LMI
8498 (prog1
8499 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
8500 (gnus-summary-position-point)))
8501
8502(defun gnus-summary-limit-exclude-childless-dormant ()
8503 "Hide all dormant articles that have no children."
8504 (interactive)
eec82323
LMI
8505 (let ((data (gnus-data-list t))
8506 articles d children)
8507 ;; Find all articles that are either not dormant or have
8508 ;; children.
8509 (while (setq d (pop data))
8510 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
8511 (and (setq children
8512 (gnus-article-children (gnus-data-number d)))
8513 (let (found)
8514 (while children
8515 (when (memq (car children) articles)
8516 (setq children nil
8517 found t))
8518 (pop children))
8519 found)))
8520 (push (gnus-data-number d) articles)))
8521 ;; Do the limiting.
8522 (prog1
8523 (gnus-summary-limit articles)
8524 (gnus-summary-position-point))))
8525
8526(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
8527 "Mark all unread excluded articles as read.
8528If ALL, mark even excluded ticked and dormants as read."
8529 (interactive "P")
23f87bed
MB
8530 (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
8531 (let ((articles (gnus-sorted-ndifference
eec82323
LMI
8532 (sort
8533 (mapcar (lambda (h) (mail-header-number h))
8534 gnus-newsgroup-headers)
8535 '<)
23f87bed 8536 gnus-newsgroup-limit))
eec82323 8537 article)
6748645f 8538 (setq gnus-newsgroup-unreads
23f87bed
MB
8539 (gnus-sorted-intersection gnus-newsgroup-unreads
8540 gnus-newsgroup-limit))
eec82323
LMI
8541 (if all
8542 (setq gnus-newsgroup-dormant nil
8543 gnus-newsgroup-marked nil
8544 gnus-newsgroup-reads
8545 (nconc
8546 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
8547 gnus-newsgroup-reads))
8548 (while (setq article (pop articles))
8549 (unless (or (memq article gnus-newsgroup-dormant)
8550 (memq article gnus-newsgroup-marked))
8551 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
8552
8553(defun gnus-summary-limit (articles &optional pop)
8554 (if pop
8555 ;; We pop the previous limit off the stack and use that.
8556 (setq articles (car gnus-newsgroup-limits)
8557 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
8558 ;; We use the new limit, so we push the old limit on the stack.
8559 (push gnus-newsgroup-limit gnus-newsgroup-limits))
8560 ;; Set the limit.
8561 (setq gnus-newsgroup-limit articles)
8562 (let ((total (length gnus-newsgroup-data))
8563 (data (gnus-data-find-list (gnus-summary-article-number)))
8564 (gnus-summary-mark-below nil) ; Inhibit this.
8565 found)
8566 ;; This will do all the work of generating the new summary buffer
8567 ;; according to the new limit.
8568 (gnus-summary-prepare)
8569 ;; Hide any threads, possibly.
23f87bed 8570 (gnus-summary-maybe-hide-threads)
eec82323
LMI
8571 ;; Try to return to the article you were at, or one in the
8572 ;; neighborhood.
8573 (when data
8574 ;; We try to find some article after the current one.
8575 (while data
8576 (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
8577 (setq data nil
8578 found t))
8579 (setq data (cdr data))))
8580 (unless found
8581 ;; If there is no data, that means that we were after the last
8582 ;; article. The same goes when we can't find any articles
8583 ;; after the current one.
8584 (goto-char (point-max))
8585 (gnus-summary-find-prev))
6748645f 8586 (gnus-set-mode-line 'summary)
eec82323
LMI
8587 ;; We return how many articles were removed from the summary
8588 ;; buffer as a result of the new limit.
8589 (- total (length gnus-newsgroup-data))))
8590
8591(defsubst gnus-invisible-cut-children (threads)
8592 (let ((num 0))
8593 (while threads
8594 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
8595 (incf num))
8596 (pop threads))
8597 (< num 2)))
8598
8599(defsubst gnus-cut-thread (thread)
8600 "Go forwards in the thread until we find an article that we want to display."
8601 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8602 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8603 (numberp gnus-fetch-old-headers)
eec82323
LMI
8604 (eq gnus-build-sparse-threads 'some)
8605 (eq gnus-build-sparse-threads 'more))
8606 ;; Deal with old-fetched headers and sparse threads.
8607 (while (and
8608 thread
8609 (or
8610 (gnus-summary-article-sparse-p (mail-header-number (car thread)))
8611 (gnus-summary-article-ancient-p
8612 (mail-header-number (car thread))))
6748645f
LMI
8613 (if (or (<= (length (cdr thread)) 1)
8614 (eq gnus-fetch-old-headers 'invisible))
8615 (setq gnus-newsgroup-limit
8616 (delq (mail-header-number (car thread))
8617 gnus-newsgroup-limit)
8618 thread (cadr thread))
8619 (when (gnus-invisible-cut-children (cdr thread))
8620 (let ((th (cdr thread)))
8621 (while th
8622 (if (memq (mail-header-number (caar th))
a8151ef7 8623 gnus-newsgroup-limit)
6748645f
LMI
8624 (setq thread (car th)
8625 th nil)
8626 (setq th (cdr th))))))))))
eec82323
LMI
8627 thread)
8628
8629(defun gnus-cut-threads (threads)
23f87bed 8630 "Cut off all uninteresting articles from the beginning of THREADS."
eec82323 8631 (when (or (eq gnus-fetch-old-headers 'some)
6748645f 8632 (eq gnus-fetch-old-headers 'invisible)
16409b0b 8633 (numberp gnus-fetch-old-headers)
eec82323
LMI
8634 (eq gnus-build-sparse-threads 'some)
8635 (eq gnus-build-sparse-threads 'more))
8636 (let ((th threads))
8637 (while th
8638 (setcar th (gnus-cut-thread (car th)))
8639 (setq th (cdr th)))))
8640 ;; Remove nixed out threads.
8641 (delq nil threads))
8642
8643(defun gnus-summary-initial-limit (&optional show-if-empty)
8644 "Figure out what the initial limit is supposed to be on group entry.
8645This entails weeding out unwanted dormants, low-scored articles,
8646fetch-old-headers verbiage, and so on."
8647 ;; Most groups have nothing to remove.
f394fa25
MB
8648 (unless (or gnus-inhibit-limiting
8649 (and (null gnus-newsgroup-dormant)
8650 (eq gnus-newsgroup-display 'gnus-not-ignore)
8651 (not (eq gnus-fetch-old-headers 'some))
8652 (not (numberp gnus-fetch-old-headers))
8653 (not (eq gnus-fetch-old-headers 'invisible))
8654 (null gnus-summary-expunge-below)
8655 (not (eq gnus-build-sparse-threads 'some))
8656 (not (eq gnus-build-sparse-threads 'more))
8657 (null gnus-thread-expunge-below)
8658 (not gnus-use-nocem)))
eec82323
LMI
8659 (push gnus-newsgroup-limit gnus-newsgroup-limits)
8660 (setq gnus-newsgroup-limit nil)
8661 (mapatoms
8662 (lambda (node)
8663 (unless (car (symbol-value node))
8664 ;; These threads have no parents -- they are roots.
8665 (let ((nodes (cdr (symbol-value node)))
8666 thread)
8667 (while nodes
8668 (if (and gnus-thread-expunge-below
8669 (< (gnus-thread-total-score (car nodes))
8670 gnus-thread-expunge-below))
8671 (gnus-expunge-thread (pop nodes))
8672 (setq thread (pop nodes))
8673 (gnus-summary-limit-children thread))))))
8674 gnus-newsgroup-dependencies)
8675 ;; If this limitation resulted in an empty group, we might
8676 ;; pop the previous limit and use it instead.
8677 (when (and (not gnus-newsgroup-limit)
8678 show-if-empty)
8679 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
8680 gnus-newsgroup-limit))
8681
8682(defun gnus-summary-limit-children (thread)
8683 "Return 1 if this subthread is visible and 0 if it is not."
8684 ;; First we get the number of visible children to this thread. This
8685 ;; is done by recursing down the thread using this function, so this
8686 ;; will really go down to a leaf article first, before slowly
8687 ;; working its way up towards the root.
8688 (when thread
04b61ae9 8689 (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
23f87bed 8690 (children
eec82323
LMI
8691 (if (cdr thread)
8692 (apply '+ (mapcar 'gnus-summary-limit-children
8693 (cdr thread)))
8694 0))
8695 (number (mail-header-number (car thread)))
8696 score)
8697 (if (and
8698 (not (memq number gnus-newsgroup-marked))
8699 (or
8700 ;; If this article is dormant and has absolutely no visible
8701 ;; children, then this article isn't visible.
8702 (and (memq number gnus-newsgroup-dormant)
8703 (zerop children))
8704 ;; If this is "fetch-old-headered" and there is no
8705 ;; visible children, then we don't want this article.
16409b0b
GM
8706 (and (or (eq gnus-fetch-old-headers 'some)
8707 (numberp gnus-fetch-old-headers))
eec82323
LMI
8708 (gnus-summary-article-ancient-p number)
8709 (zerop children))
6748645f
LMI
8710 ;; If this is "fetch-old-headered" and `invisible', then
8711 ;; we don't want this article.
8712 (and (eq gnus-fetch-old-headers 'invisible)
8713 (gnus-summary-article-ancient-p number))
eec82323
LMI
8714 ;; If this is a sparsely inserted article with no children,
8715 ;; we don't want it.
8716 (and (eq gnus-build-sparse-threads 'some)
8717 (gnus-summary-article-sparse-p number)
8718 (zerop children))
8719 ;; If we use expunging, and this article is really
8720 ;; low-scored, then we don't want this article.
8721 (when (and gnus-summary-expunge-below
8722 (< (setq score
8723 (or (cdr (assq number gnus-newsgroup-scored))
8724 gnus-summary-default-score))
8725 gnus-summary-expunge-below))
8726 ;; We increase the expunge-tally here, but that has
8727 ;; nothing to do with the limits, really.
8728 (incf gnus-newsgroup-expunged-tally)
8729 ;; We also mark as read here, if that's wanted.
8730 (when (and gnus-summary-mark-below
8731 (< score gnus-summary-mark-below))
8732 (setq gnus-newsgroup-unreads
8733 (delq number gnus-newsgroup-unreads))
8734 (if gnus-newsgroup-auto-expire
8735 (push number gnus-newsgroup-expirable)
8736 (push (cons number gnus-low-score-mark)
8737 gnus-newsgroup-reads)))
8738 t)
23f87bed
MB
8739 ;; Do the `display' group parameter.
8740 (and gnus-newsgroup-display
8741 (not (funcall gnus-newsgroup-display)))
eec82323 8742 ;; Check NoCeM things.
01c52d31
MB
8743 (when (and gnus-use-nocem
8744 (gnus-nocem-unwanted-article-p
8745 (mail-header-id (car thread))))
8746 (setq gnus-newsgroup-unreads
8747 (delq number gnus-newsgroup-unreads))
8748 t)))
eec82323
LMI
8749 ;; Nope, invisible article.
8750 0
8751 ;; Ok, this article is to be visible, so we add it to the limit
8752 ;; and return 1.
8753 (push number gnus-newsgroup-limit)
8754 1))))
8755
8756(defun gnus-expunge-thread (thread)
8757 "Mark all articles in THREAD as read."
8758 (let* ((number (mail-header-number (car thread))))
8759 (incf gnus-newsgroup-expunged-tally)
8760 ;; We also mark as read here, if that's wanted.
8761 (setq gnus-newsgroup-unreads
8762 (delq number gnus-newsgroup-unreads))
8763 (if gnus-newsgroup-auto-expire
8764 (push number gnus-newsgroup-expirable)
8765 (push (cons number gnus-low-score-mark)
8766 gnus-newsgroup-reads)))
8767 ;; Go recursively through all subthreads.
8768 (mapcar 'gnus-expunge-thread (cdr thread)))
8769
8770;; Summary article oriented commands
8771
8772(defun gnus-summary-refer-parent-article (n)
8773 "Refer parent article N times.
8774If N is negative, go to ancestor -N instead.
8775The difference between N and the number of articles fetched is returned."
8776 (interactive "p")
eec82323
LMI
8777 (let ((skip 1)
8778 error header ref)
8779 (when (not (natnump n))
8780 (setq skip (abs n)
8781 n 1))
8782 (while (and (> n 0)
8783 (not error))
8784 (setq header (gnus-summary-article-header))
8785 (if (and (eq (mail-header-number header)
8786 (cdr gnus-article-current))
8787 (equal gnus-newsgroup-name
8788 (car gnus-article-current)))
8789 ;; If we try to find the parent of the currently
8790 ;; displayed article, then we take a look at the actual
8791 ;; References header, since this is slightly more
8792 ;; reliable than the References field we got from the
8793 ;; server.
c7a91ce1 8794 (with-current-buffer gnus-original-article-buffer
eec82323
LMI
8795 (nnheader-narrow-to-headers)
8796 (unless (setq ref (message-fetch-field "references"))
23f87bed
MB
8797 (when (setq ref (message-fetch-field "in-reply-to"))
8798 (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
eec82323
LMI
8799 (widen))
8800 (setq ref
8801 ;; It's not the current article, so we take a bet on
8802 ;; the value we got from the server.
8803 (mail-header-references header)))
8804 (if (and ref
8805 (not (equal ref "")))
8806 (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
8807 (gnus-message 1 "Couldn't find parent"))
8808 (gnus-message 1 "No references in article %d"
8809 (gnus-summary-article-number))
8810 (setq error t))
8811 (decf n))
8812 (gnus-summary-position-point)
8813 n))
8814
8815(defun gnus-summary-refer-references ()
8816 "Fetch all articles mentioned in the References header.
6748645f 8817Return the number of articles fetched."
eec82323 8818 (interactive)
eec82323
LMI
8819 (let ((ref (mail-header-references (gnus-summary-article-header)))
8820 (current (gnus-summary-article-number))
8821 (n 0))
8822 (if (or (not ref)
8823 (equal ref ""))
8824 (error "No References in the current article")
8825 ;; For each Message-ID in the References header...
8826 (while (string-match "<[^>]*>" ref)
8827 (incf n)
8828 ;; ... fetch that article.
8829 (gnus-summary-refer-article
8830 (prog1 (match-string 0 ref)
8831 (setq ref (substring ref (match-end 0))))))
8832 (gnus-summary-goto-subject current)
8833 (gnus-summary-position-point)
8834 n)))
8835
6748645f
LMI
8836(defun gnus-summary-refer-thread (&optional limit)
8837 "Fetch all articles in the current thread.
8838If LIMIT (the numerical prefix), fetch that many old headers instead
8839of what's specified by the `gnus-refer-thread-limit' variable."
8840 (interactive "P")
8841 (let ((id (mail-header-id (gnus-summary-article-header)))
8842 (limit (if limit (prefix-numeric-value limit)
8843 gnus-refer-thread-limit)))
6748645f
LMI
8844 (unless (eq gnus-fetch-old-headers 'invisible)
8845 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8846 ;; Retrieve the headers and read them in.
23f87bed
MB
8847 (if (eq (if (numberp limit)
8848 (gnus-retrieve-headers
8849 (list (min
8850 (+ (mail-header-number
8851 (gnus-summary-article-header))
8852 limit)
8853 gnus-newsgroup-end))
8854 gnus-newsgroup-name (* limit 2))
8855 ;; gnus-refer-thread-limit is t, i.e. fetch _all_
8856 ;; headers.
8857 (gnus-retrieve-headers (list gnus-newsgroup-end)
8858 gnus-newsgroup-name limit))
6748645f
LMI
8859 'nov)
8860 (gnus-build-all-threads)
23f87bed 8861 (error "Can't fetch thread from back ends that don't support NOV"))
6748645f
LMI
8862 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name))
8863 (gnus-summary-limit-include-thread id)))
8864
16409b0b
GM
8865(defun gnus-summary-refer-article (message-id)
8866 "Fetch an article specified by MESSAGE-ID."
8867 (interactive "sMessage-ID: ")
eec82323
LMI
8868 (when (and (stringp message-id)
8869 (not (zerop (length message-id))))
23f87bed 8870 (setq message-id (gnus-replace-in-string message-id " " ""))
eec82323
LMI
8871 ;; Construct the correct Message-ID if necessary.
8872 ;; Suggested by tale@pawl.rpi.edu.
8873 (unless (string-match "^<" message-id)
8874 (setq message-id (concat "<" message-id)))
8875 (unless (string-match ">$" message-id)
8876 (setq message-id (concat message-id ">")))
23f87bed
MB
8877 ;; People often post MIDs from URLs, so unhex it:
8878 (unless (string-match "@" message-id)
8879 (setq message-id (gnus-url-unhex-string message-id)))
eec82323
LMI
8880 (let* ((header (gnus-id-to-header message-id))
8881 (sparse (and header
8882 (gnus-summary-article-sparse-p
a8151ef7
LMI
8883 (mail-header-number header))
8884 (memq (mail-header-number header)
16409b0b
GM
8885 gnus-newsgroup-limit)))
8886 number)
6748645f
LMI
8887 (cond
8888 ;; If the article is present in the buffer we just go to it.
8889 ((and header
8890 (or (not (gnus-summary-article-sparse-p
8891 (mail-header-number header)))
8892 sparse))
8893 (prog1
8894 (gnus-summary-goto-article
8895 (mail-header-number header) nil t)
8896 (when sparse
8897 (gnus-summary-update-article (mail-header-number header)))))
8898 (t
16409b0b
GM
8899 ;; We fetch the article.
8900 (catch 'found
8901 (dolist (gnus-override-method (gnus-refer-article-methods))
23f87bed
MB
8902 (when (and (gnus-check-server gnus-override-method)
8903 ;; Fetch the header,
8904 (setq number (gnus-summary-insert-subject message-id)))
8905 ;; and display the article.
eec82323 8906 (gnus-summary-select-article nil nil nil number)
16409b0b
GM
8907 (throw 'found t)))
8908 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
8909
8910(defun gnus-refer-article-methods ()
8f688cb0 8911 "Return a list of referable methods."
16409b0b
GM
8912 (cond
8913 ;; No method, so we default to current and native.
8914 ((null gnus-refer-article-method)
8915 (list gnus-current-select-method gnus-select-method))
8916 ;; Current.
8917 ((eq 'current gnus-refer-article-method)
8918 (list gnus-current-select-method))
8919 ;; List of select methods.
d4dfaa19
DL
8920 ((not (and (symbolp (car gnus-refer-article-method))
8921 (assq (car gnus-refer-article-method) nnoo-definition-alist)))
16409b0b
GM
8922 (let (out)
8923 (dolist (method gnus-refer-article-method)
8924 (push (if (eq 'current method)
8925 gnus-current-select-method
8926 method)
8927 out))
8928 (nreverse out)))
8929 ;; One single select method.
8930 (t
8931 (list gnus-refer-article-method))))
6748645f
LMI
8932
8933(defun gnus-summary-edit-parameters ()
8934 "Edit the group parameters of the current group."
8935 (interactive)
8936 (gnus-group-edit-group gnus-newsgroup-name 'params))
eec82323 8937
16409b0b
GM
8938(defun gnus-summary-customize-parameters ()
8939 "Customize the group parameters of the current group."
8940 (interactive)
8941 (gnus-group-customize gnus-newsgroup-name))
8942
eec82323
LMI
8943(defun gnus-summary-enter-digest-group (&optional force)
8944 "Enter an nndoc group based on the current article.
8945If FORCE, force a digest interpretation. If not, try
8946to guess what the document format is."
8947 (interactive "P")
eec82323 8948 (let ((conf gnus-current-window-configuration))
23f87bed
MB
8949 (save-window-excursion
8950 (save-excursion
8951 (let (gnus-article-prepare-hook
8952 gnus-display-mime-function
8953 gnus-break-pages)
8954 (gnus-summary-select-article))))
eec82323
LMI
8955 (setq gnus-current-window-configuration conf)
8956 (let* ((name (format "%s-%d"
8957 (gnus-group-prefixed-name
8958 gnus-newsgroup-name (list 'nndoc ""))
01c52d31 8959 (with-current-buffer gnus-summary-buffer
eec82323
LMI
8960 gnus-current-article)))
8961 (ogroup gnus-newsgroup-name)
8962 (params (append (gnus-info-params (gnus-get-info ogroup))
8963 (list (cons 'to-group ogroup))
23f87bed 8964 (list (cons 'parent-group ogroup))
eec82323
LMI
8965 (list (cons 'save-article-group ogroup))))
8966 (case-fold-search t)
8967 (buf (current-buffer))
16409b0b 8968 dig to-address)
c7a91ce1 8969 (with-current-buffer gnus-original-article-buffer
16409b0b
GM
8970 ;; Have the digest group inherit the main mail address of
8971 ;; the parent article.
23f87bed
MB
8972 (when (setq to-address (or (gnus-fetch-field "reply-to")
8973 (gnus-fetch-field "from")))
343d6628
MB
8974 (setq params
8975 (append
8976 (list (cons 'to-address
8977 (funcall gnus-decode-encoded-address-function
8978 to-address))))))
eec82323
LMI
8979 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
8980 (insert-buffer-substring gnus-original-article-buffer)
8981 ;; Remove lines that may lead nndoc to misinterpret the
8982 ;; document type.
8983 (narrow-to-region
8984 (goto-char (point-min))
8985 (or (search-forward "\n\n" nil t) (point)))
8986 (goto-char (point-min))
16409b0b 8987 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
8988 (widen))
8989 (unwind-protect
23f87bed 8990 (if (let ((gnus-newsgroup-ephemeral-charset gnus-newsgroup-charset)
16409b0b
GM
8991 (gnus-newsgroup-ephemeral-ignored-charsets
8992 gnus-newsgroup-ignored-charsets))
8993 (gnus-group-read-ephemeral-group
8994 name `(nndoc ,name (nndoc-address ,(get-buffer dig))
8995 (nndoc-article-type
23f87bed
MB
8996 ,(if force 'mbox 'guess)))
8997 t nil nil nil
8998 `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
8999 "ADAPT")))))
16409b0b 9000 ;; Make all postings to this group go to the parent group.
23f87bed
MB
9001 (nconc (gnus-info-params (gnus-get-info name))
9002 params)
9003 ;; Couldn't select this doc group.
9004 (switch-to-buffer buf)
9005 (gnus-set-global-variables)
9006 (gnus-configure-windows 'summary)
9007 (gnus-message 3 "Article couldn't be entered?"))
eec82323
LMI
9008 (kill-buffer dig)))))
9009
9010(defun gnus-summary-read-document (n)
9011 "Open a new group based on the current article(s).
9012This will allow you to read digests and other similar
9013documents as newsgroups.
9014Obeys the standard process/prefix convention."
9015 (interactive "P")
01c52d31 9016 (let* ((ogroup gnus-newsgroup-name)
eec82323
LMI
9017 (params (append (gnus-info-params (gnus-get-info ogroup))
9018 (list (cons 'to-group ogroup))))
01c52d31
MB
9019 group egroup groups vgroup)
9020 (dolist (article (gnus-summary-work-articles n))
eec82323
LMI
9021 (setq group (format "%s-%d" gnus-newsgroup-name article))
9022 (gnus-summary-remove-process-mark article)
9023 (when (gnus-summary-display-article article)
398a825b 9024 (save-excursion ;;What for?
16409b0b 9025 (with-temp-buffer
eec82323
LMI
9026 (insert-buffer-substring gnus-original-article-buffer)
9027 ;; Remove some headers that may lead nndoc to make
9028 ;; the wrong guess.
9029 (message-narrow-to-head)
9030 (goto-char (point-min))
01c52d31 9031 (delete-matching-lines "^Path:\\|^From ")
eec82323
LMI
9032 (widen)
9033 (if (setq egroup
9034 (gnus-group-read-ephemeral-group
9035 group `(nndoc ,group (nndoc-address ,(current-buffer))
9036 (nndoc-article-type guess))
9037 t nil t))
9038 (progn
c7a91ce1 9039 ;; Make all postings to this group go to the parent group.
eec82323
LMI
9040 (nconc (gnus-info-params (gnus-get-info egroup))
9041 params)
9042 (push egroup groups))
9043 ;; Couldn't select this doc group.
9044 (gnus-error 3 "Article couldn't be entered"))))))
9045 ;; Now we have selected all the documents.
9046 (cond
9047 ((not groups)
9048 (error "None of the articles could be interpreted as documents"))
9049 ((gnus-group-read-ephemeral-group
9050 (setq vgroup (format
9051 "nnvirtual:%s-%s" gnus-newsgroup-name
9052 (format-time-string "%Y%m%dT%H%M%S" (current-time))))
9053 `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
9054 t
9055 (cons (current-buffer) 'summary)))
9056 (t
9057 (error "Couldn't select virtual nndoc group")))))
9058
9059(defun gnus-summary-isearch-article (&optional regexp-p)
9060 "Do incremental search forward on the current article.
9061If REGEXP-P (the prefix) is non-nil, do regexp isearch."
9062 (interactive "P")
eec82323
LMI
9063 (gnus-summary-select-article)
9064 (gnus-configure-windows 'article)
9065 (gnus-eval-in-buffer-window gnus-article-buffer
6748645f
LMI
9066 (save-restriction
9067 (widen)
9068 (isearch-forward regexp-p))))
eec82323 9069
01c52d31
MB
9070(defun gnus-summary-repeat-search-article-forward ()
9071 "Repeat the previous search forwards."
9072 (interactive)
9073 (unless gnus-last-search-regexp
9074 (error "No previous search"))
9075 (gnus-summary-search-article-forward gnus-last-search-regexp))
9076
9077(defun gnus-summary-repeat-search-article-backward ()
9078 "Repeat the previous search backwards."
9079 (interactive)
9080 (unless gnus-last-search-regexp
9081 (error "No previous search"))
9082 (gnus-summary-search-article-forward gnus-last-search-regexp t))
9083
eec82323
LMI
9084(defun gnus-summary-search-article-forward (regexp &optional backward)
9085 "Search for an article containing REGEXP forward.
9086If BACKWARD, search backward instead."
9087 (interactive
9088 (list (read-string
9089 (format "Search article %s (regexp%s): "
9090 (if current-prefix-arg "backward" "forward")
9091 (if gnus-last-search-regexp
9092 (concat ", default " gnus-last-search-regexp)
9093 "")))
9094 current-prefix-arg))
eec82323
LMI
9095 (if (string-equal regexp "")
9096 (setq regexp (or gnus-last-search-regexp ""))
23f87bed
MB
9097 (setq gnus-last-search-regexp regexp)
9098 (setq gnus-article-before-search gnus-current-article))
9099 ;; Intentionally set gnus-last-article.
9100 (setq gnus-last-article gnus-article-before-search)
9101 (let ((gnus-last-article gnus-last-article))
9102 (if (gnus-summary-search-article regexp backward)
9103 (gnus-summary-show-thread)
abc40aab 9104 (signal 'search-failed (list regexp)))))
eec82323
LMI
9105
9106(defun gnus-summary-search-article-backward (regexp)
9107 "Search for an article containing REGEXP backward."
9108 (interactive
9109 (list (read-string
9110 (format "Search article backward (regexp%s): "
9111 (if gnus-last-search-regexp
9112 (concat ", default " gnus-last-search-regexp)
9113 "")))))
9114 (gnus-summary-search-article-forward regexp 'backward))
9115
9116(defun gnus-summary-search-article (regexp &optional backward)
9117 "Search for an article containing REGEXP.
9118Optional argument BACKWARD means do search for backward.
9119`gnus-select-article-hook' is not called during the search."
a8151ef7
LMI
9120 ;; We have to require this here to make sure that the following
9121 ;; dynamic binding isn't shadowed by autoloading.
9122 (require 'gnus-async)
16409b0b 9123 (require 'gnus-art)
eec82323 9124 (let ((gnus-select-article-hook nil) ;Disable hook.
16409b0b 9125 (gnus-article-prepare-hook nil)
eec82323
LMI
9126 (gnus-mark-article-hook nil) ;Inhibit marking as read.
9127 (gnus-use-article-prefetch nil)
9128 (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
a8151ef7 9129 (gnus-use-trees nil) ;Inhibit updating tree buffer.
23f87bed
MB
9130 (gnus-visual nil)
9131 (gnus-keep-backlog nil)
9132 (gnus-break-pages nil)
9133 (gnus-summary-display-arrow nil)
9134 (gnus-updated-mode-lines nil)
9135 (gnus-auto-center-summary nil)
eec82323 9136 (sum (current-buffer))
16409b0b 9137 (gnus-display-mime-function nil)
eec82323
LMI
9138 (found nil)
9139 point)
9140 (gnus-save-hidden-threads
9141 (gnus-summary-select-article)
9142 (set-buffer gnus-article-buffer)
16409b0b 9143 (goto-char (window-point (get-buffer-window (current-buffer))))
eec82323
LMI
9144 (when backward
9145 (forward-line -1))
9146 (while (not found)
9147 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
9148 (if (if backward
9149 (re-search-backward regexp nil t)
9150 (re-search-forward regexp nil t))
9151 ;; We found the regexp.
9152 (progn
9153 (setq found 'found)
9154 (beginning-of-line)
9155 (set-window-start
9156 (get-buffer-window (current-buffer))
9157 (point))
9158 (forward-line 1)
16409b0b
GM
9159 (set-window-point
9160 (get-buffer-window (current-buffer))
9161 (point))
eec82323
LMI
9162 (set-buffer sum)
9163 (setq point (point)))
9164 ;; We didn't find it, so we go to the next article.
9165 (set-buffer sum)
9166 (setq found 'not)
9167 (while (eq found 'not)
9168 (if (not (if backward (gnus-summary-find-prev)
9169 (gnus-summary-find-next)))
9170 ;; No more articles.
9171 (setq found t)
9172 ;; Select the next article and adjust point.
9173 (unless (gnus-summary-article-sparse-p
9174 (gnus-summary-article-number))
9175 (setq found nil)
9176 (gnus-summary-select-article)
9177 (set-buffer gnus-article-buffer)
9178 (widen)
9179 (goto-char (if backward (point-max) (point-min))))))))
9180 (gnus-message 7 ""))
9181 ;; Return whether we found the regexp.
9182 (when (eq found 'found)
9183 (goto-char point)
9184 (gnus-summary-show-thread)
9185 (gnus-summary-goto-subject gnus-current-article)
9186 (gnus-summary-position-point)
9187 t)))
9188
23f87bed
MB
9189(defun gnus-find-matching-articles (header regexp)
9190 "Return a list of all articles that match REGEXP on HEADER.
9191This search includes all articles in the current group that Gnus has
9192fetched headers for, whether they are displayed or not."
9193 (let ((articles nil)
c7a91ce1 9194 ;; Can't eta-reduce because it's a macro.
23f87bed
MB
9195 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
9196 (case-fold-search t))
9197 (dolist (header gnus-newsgroup-headers)
9198 (when (string-match regexp (funcall func header))
9199 (push (mail-header-number header) articles)))
9200 (nreverse articles)))
9201
eec82323 9202(defun gnus-summary-find-matching (header regexp &optional backward unread
47b63dfa 9203 not-case-fold not-matching)
eec82323
LMI
9204 "Return a list of all articles that match REGEXP on HEADER.
9205The search stars on the current article and goes forwards unless
9206BACKWARD is non-nil. If BACKWARD is `all', do all articles.
9207If UNREAD is non-nil, only unread articles will
9208be taken into consideration. If NOT-CASE-FOLD, case won't be folded
a1506d29 9209in the comparisons. If NOT-MATCHING, return a list of all articles that
47b63dfa
SZ
9210not match REGEXP on HEADER."
9211 (let ((case-fold-search (not not-case-fold))
16409b0b
GM
9212 articles d func)
9213 (if (consp header)
9214 (if (eq (car header) 'extra)
9215 (setq func
9216 `(lambda (h)
9217 (or (cdr (assq ',(cdr header) (mail-header-extra h)))
9218 "")))
9219 (error "%s is an invalid header" header))
9220 (unless (fboundp (intern (concat "mail-header-" header)))
9221 (error "%s is not a valid header" header))
9222 (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
47b63dfa
SZ
9223 (dolist (d (if (eq backward 'all)
9224 gnus-newsgroup-data
9225 (gnus-data-find-list
9226 (gnus-summary-article-number)
9227 (gnus-data-list backward))))
9228 (when (and (or (not unread) ; We want all articles...
9229 (gnus-data-unread-p d)) ; Or just unreads.
9230 (vectorp (gnus-data-header d)) ; It's not a pseudo.
9231 (if not-matching
a1506d29 9232 (not (string-match
47b63dfa
SZ
9233 regexp
9234 (funcall func (gnus-data-header d))))
9235 (string-match regexp
9236 (funcall func (gnus-data-header d)))))
9237 (push (gnus-data-number d) articles))) ; Success!
eec82323
LMI
9238 (nreverse articles)))
9239
9240(defun gnus-summary-execute-command (header regexp command &optional backward)
9241 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
9242If HEADER is an empty string (or nil), the match is done on the entire
9243article. If BACKWARD (the prefix) is non-nil, search backward instead."
9244 (interactive
9245 (list (let ((completion-ignore-case t))
9246 (completing-read
9247 "Header name: "
23f87bed
MB
9248 (mapcar (lambda (header) (list (format "%s" header)))
9249 (append
9250 '("Number" "Subject" "From" "Lines" "Date"
9251 "Message-ID" "Xref" "References" "Body")
9252 gnus-extra-headers))
eec82323
LMI
9253 nil 'require-match))
9254 (read-string "Regexp: ")
9255 (read-key-sequence "Command: ")
9256 current-prefix-arg))
9257 (when (equal header "Body")
9258 (setq header ""))
eec82323
LMI
9259 ;; Hidden thread subtrees must be searched as well.
9260 (gnus-summary-show-all-threads)
9261 ;; We don't want to change current point nor window configuration.
9262 (save-excursion
9263 (save-window-excursion
23f87bed
MB
9264 (let (gnus-visual
9265 gnus-treat-strip-trailing-blank-lines
9266 gnus-treat-strip-leading-blank-lines
9267 gnus-treat-strip-multiple-blank-lines
9268 gnus-treat-hide-boring-headers
9269 gnus-treat-fold-newsgroups
9270 gnus-article-prepare-hook)
9271 (gnus-message 6 "Executing %s..." (key-description command))
9272 ;; We'd like to execute COMMAND interactively so as to give arguments.
9273 (gnus-execute header regexp
9274 `(call-interactively ',(key-binding command))
9275 backward)
9276 (gnus-message 6 "Executing %s...done" (key-description command))))))
eec82323
LMI
9277
9278(defun gnus-summary-beginning-of-article ()
9279 "Scroll the article back to the beginning."
9280 (interactive)
eec82323
LMI
9281 (gnus-summary-select-article)
9282 (gnus-configure-windows 'article)
9283 (gnus-eval-in-buffer-window gnus-article-buffer
9284 (widen)
9285 (goto-char (point-min))
23f87bed 9286 (when gnus-break-pages
eec82323
LMI
9287 (gnus-narrow-to-page))))
9288
9289(defun gnus-summary-end-of-article ()
9290 "Scroll to the end of the article."
9291 (interactive)
eec82323
LMI
9292 (gnus-summary-select-article)
9293 (gnus-configure-windows 'article)
9294 (gnus-eval-in-buffer-window gnus-article-buffer
9295 (widen)
9296 (goto-char (point-max))
9297 (recenter -3)
23f87bed 9298 (when gnus-break-pages
eec82323
LMI
9299 (gnus-narrow-to-page))))
9300
23f87bed
MB
9301(defun gnus-summary-print-truncate-and-quote (string &optional len)
9302 "Truncate to LEN and quote all \"(\"'s in STRING."
9303 (gnus-replace-in-string (if (and len (> (length string) len))
9304 (substring string 0 len)
9305 string)
9306 "[()]" "\\\\\\&"))
9307
6748645f 9308(defun gnus-summary-print-article (&optional filename n)
23f87bed
MB
9309 "Generate and print a PostScript image of the process-marked (mail) articles.
9310
9311If used interactively, print the current article if none are
9312process-marked. With prefix arg, prompt the user for the name of the
9313file to save in.
6748645f 9314
23f87bed
MB
9315When used from Lisp, accept two optional args FILENAME and N. N means
9316to print the next N articles. If N is negative, print the N previous
9317articles. If N is nil and articles have been marked with the process
9318mark, print these instead.
eec82323 9319
16409b0b 9320If the optional first argument FILENAME is nil, send the image to the
6748645f
LMI
9321printer. If FILENAME is a string, save the PostScript image in a file with
9322that name. If FILENAME is a number, prompt the user for the name of the file
eec82323 9323to save in."
676a7cc9 9324 (interactive (list (ps-print-preprint current-prefix-arg)))
6748645f
LMI
9325 (dolist (article (gnus-summary-work-articles n))
9326 (gnus-summary-select-article nil nil 'pseudo article)
9327 (gnus-eval-in-buffer-window gnus-article-buffer
23f87bed 9328 (gnus-print-buffer))
676a7cc9
SZ
9329 (gnus-summary-remove-process-mark article))
9330 (ps-despool filename))
eec82323 9331
23f87bed
MB
9332(defun gnus-print-buffer ()
9333 (let ((buffer (generate-new-buffer " *print*")))
9334 (unwind-protect
9335 (progn
9336 (copy-to-buffer buffer (point-min) (point-max))
9337 (set-buffer buffer)
9338 (gnus-remove-text-with-property 'gnus-decoration)
9339 (when (gnus-visual-p 'article-highlight 'highlight)
9340 ;; Copy-to-buffer doesn't copy overlay. So redo
9341 ;; highlight.
9342 (let ((gnus-article-buffer buffer))
9343 (gnus-article-highlight-citation t)
9344 (gnus-article-highlight-signature)
9345 (gnus-article-emphasize)
9346 (gnus-article-delete-invisible-text)))
9347 (let ((ps-left-header
9348 (list
9349 (concat "("
9350 (gnus-summary-print-truncate-and-quote
9351 (mail-header-subject gnus-current-headers)
9352 66) ")")
9353 (concat "("
9354 (gnus-summary-print-truncate-and-quote
9355 (mail-header-from gnus-current-headers)
9356 45) ")")))
9357 (ps-right-header
9358 (list
9359 "/pagenumberstring load"
9360 (concat "("
9361 (mail-header-date gnus-current-headers) ")"))))
9362 (gnus-run-hooks 'gnus-ps-print-hook)
9363 (save-excursion
a7b50e1c 9364 (if ps-print-color-p
23f87bed
MB
9365 (ps-spool-buffer-with-faces)
9366 (ps-spool-buffer)))))
9367 (kill-buffer buffer))))
9368
eec82323 9369(defun gnus-summary-show-article (&optional arg)
23f87bed 9370 "Force redisplaying of the current article.
16409b0b
GM
9371If ARG (the prefix) is a number, show the article with the charset
9372defined in `gnus-summary-show-article-charset-alist', or the charset
23f87bed 9373input.
16409b0b 9374If ARG (the prefix) is non-nil and not a number, show the raw article
23f87bed
MB
9375without any article massaging functions being run. Normally, the key
9376strokes are `C-u g'."
eec82323 9377 (interactive "P")
16409b0b
GM
9378 (cond
9379 ((numberp arg)
23f87bed 9380 (gnus-summary-show-article t)
16409b0b
GM
9381 (let ((gnus-newsgroup-charset
9382 (or (cdr (assq arg gnus-summary-show-article-charset-alist))
23f87bed
MB
9383 (mm-read-coding-system
9384 "View as charset: " ;; actually it is coding system.
01c52d31 9385 (with-current-buffer gnus-article-buffer
23f87bed 9386 (mm-detect-coding-region (point) (point-max))))))
16409b0b 9387 (gnus-newsgroup-ignored-charsets 'gnus-all))
23f87bed
MB
9388 (gnus-summary-select-article nil 'force)
9389 (let ((deps gnus-newsgroup-dependencies)
9390 head header lines)
c7a91ce1 9391 (with-current-buffer gnus-original-article-buffer
23f87bed
MB
9392 (save-restriction
9393 (message-narrow-to-head)
9394 (setq head (buffer-string))
9395 (goto-char (point-min))
9396 (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
9397 (goto-char (point-max))
9398 (widen)
9399 (setq lines (1- (count-lines (point) (point-max))))))
9400 (with-temp-buffer
9401 (insert (format "211 %d Article retrieved.\n"
9402 (cdr gnus-article-current)))
9403 (insert head)
9404 (if lines (insert (format "Lines: %d\n" lines)))
9405 (insert ".\n")
9406 (let ((nntp-server-buffer (current-buffer)))
9407 (setq header (car (gnus-get-newsgroup-headers deps t))))))
9408 (gnus-data-set-header
9409 (gnus-data-find (cdr gnus-article-current))
9410 header)
9411 (gnus-summary-update-article-line
9412 (cdr gnus-article-current) header)
9413 (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
9414 (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
16409b0b
GM
9415 ((not arg)
9416 ;; Select the article the normal way.
9417 (gnus-summary-select-article nil 'force))
9418 (t
9419 ;; We have to require this here to make sure that the following
9420 ;; dynamic binding isn't shadowed by autoloading.
9421 (require 'gnus-async)
9422 (require 'gnus-art)
eec82323
LMI
9423 ;; Bind the article treatment functions to nil.
9424 (let ((gnus-have-all-headers t)
eec82323 9425 gnus-article-prepare-hook
16409b0b
GM
9426 gnus-article-decode-hook
9427 gnus-display-mime-function
9428 gnus-break-pages)
9429 ;; Destroy any MIME parts.
9430 (when (gnus-buffer-live-p gnus-article-buffer)
c7a91ce1 9431 (with-current-buffer gnus-article-buffer
16409b0b
GM
9432 (mm-destroy-parts gnus-article-mime-handles)
9433 ;; Set it to nil for safety reason.
9434 (setq gnus-article-mime-handle-alist nil)
9435 (setq gnus-article-mime-handles nil)))
9436 (gnus-summary-select-article nil 'force))))
eec82323
LMI
9437 (gnus-summary-goto-subject gnus-current-article)
9438 (gnus-summary-position-point))
9439
23f87bed
MB
9440(defun gnus-summary-show-raw-article ()
9441 "Show the raw article without any article massaging functions being run."
9442 (interactive)
9443 (gnus-summary-show-article t))
9444
eec82323
LMI
9445(defun gnus-summary-verbose-headers (&optional arg)
9446 "Toggle permanent full header display.
9447If ARG is a positive number, turn header display on.
9448If ARG is a negative number, turn header display off."
9449 (interactive "P")
eec82323
LMI
9450 (setq gnus-show-all-headers
9451 (cond ((or (not (numberp arg))
9452 (zerop arg))
9453 (not gnus-show-all-headers))
9454 ((natnump arg)
9455 t)))
9456 (gnus-summary-show-article))
9457
9458(defun gnus-summary-toggle-header (&optional arg)
9459 "Show the headers if they are hidden, or hide them if they are shown.
9460If ARG is a positive number, show the entire header.
9461If ARG is a negative number, hide the unwanted header lines."
9462 (interactive "P")
23f87bed
MB
9463 (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
9464 (get-buffer-window gnus-article-buffer t))))
9465 (with-current-buffer gnus-article-buffer
9466 (widen)
9467 (article-narrow-to-head)
c7a91ce1 9468 (let* ((inhibit-read-only t)
16409b0b 9469 (inhibit-point-motion-hooks t)
23f87bed
MB
9470 (hidden (if (numberp arg)
9471 (>= arg 0)
f0096211
MB
9472 (or (not (looking-at "[^ \t\n]+:"))
9473 (gnus-article-hidden-text-p 'headers))))
23f87bed
MB
9474 s e)
9475 (delete-region (point-min) (point-max))
667e0ba6
SM
9476 (with-current-buffer gnus-original-article-buffer
9477 (goto-char (setq s (point-min)))
23f87bed
MB
9478 (setq e (if (search-forward "\n\n" nil t)
9479 (1- (point))
9480 (point-max))))
667e0ba6 9481 (insert-buffer-substring gnus-original-article-buffer s e)
23f87bed
MB
9482 (run-hooks 'gnus-article-decode-hook)
9483 (if hidden
9484 (let ((gnus-treat-hide-headers nil)
9485 (gnus-treat-hide-boring-headers nil))
9486 (gnus-delete-wash-type 'headers)
9487 (gnus-treat-article 'head))
9488 (gnus-treat-article 'head))
9489 (widen)
9490 (if window
9491 (set-window-start window (goto-char (point-min))))
9492 (if gnus-break-pages
9493 (gnus-narrow-to-page)
9494 (when (gnus-visual-p 'page-marker)
c7a91ce1 9495 (let ((inhibit-read-only t))
23f87bed
MB
9496 (gnus-remove-text-with-property 'gnus-prev)
9497 (gnus-remove-text-with-property 'gnus-next))))
16409b0b 9498 (gnus-set-mode-line 'article)))))
eec82323
LMI
9499
9500(defun gnus-summary-show-all-headers ()
9501 "Make all header lines visible."
9502 (interactive)
23f87bed 9503 (gnus-summary-toggle-header 1))
eec82323 9504
eec82323
LMI
9505(defun gnus-summary-caesar-message (&optional arg)
9506 "Caesar rotate the current article by 13.
01c52d31
MB
9507With a non-numerical prefix, also rotate headers. A numerical
9508prefix specifies how many places to rotate each letter forward."
eec82323 9509 (interactive "P")
eec82323
LMI
9510 (gnus-summary-select-article)
9511 (let ((mail-header-separator ""))
9512 (gnus-eval-in-buffer-window gnus-article-buffer
9513 (save-restriction
9514 (widen)
9515 (let ((start (window-start))
c7a91ce1 9516 (inhibit-read-only t))
01c52d31
MB
9517 (if (equal arg '(4))
9518 (message-caesar-buffer-body nil t)
9519 (message-caesar-buffer-body arg))
ff4d3926
MB
9520 (set-window-start (get-buffer-window (current-buffer)) start)))))
9521 ;; Create buttons and stuff...
9522 (gnus-treat-article nil))
eec82323 9523
704f1663
GM
9524(declare-function idna-to-unicode "ext:idna" (str))
9525
01c52d31
MB
9526(defun gnus-summary-idna-message (&optional arg)
9527 "Decode IDNA encoded domain names in the current articles.
9528IDNA encoded domain names looks like `xn--bar'. If a string
9529remain unencoded after running this function, it is likely an
9530invalid IDNA string (`xn--bar' is invalid).
9531
0b10e437 9532You must have GNU Libidn (URL `http://www.gnu.org/software/libidn/')
01c52d31
MB
9533installed for this command to work."
9534 (interactive "P")
9535 (if (not (and (condition-case nil (require 'idna)
9536 (file-error))
9537 (mm-coding-system-p 'utf-8)
9538 (executable-find (symbol-value 'idna-program))))
9539 (gnus-message
9540 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
9541 (gnus-summary-select-article)
9542 (let ((mail-header-separator ""))
9543 (gnus-eval-in-buffer-window gnus-article-buffer
9544 (save-restriction
9545 (widen)
9546 (let ((start (window-start))
9547 buffer-read-only)
9548 (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
9549 (replace-match (idna-to-unicode (match-string 1))))
9550 (set-window-start (get-buffer-window (current-buffer)) start)))))))
23f87bed
MB
9551
9552(defun gnus-summary-morse-message (&optional arg)
9553 "Morse decode the current article."
9554 (interactive "P")
9555 (gnus-summary-select-article)
9556 (let ((mail-header-separator ""))
9557 (gnus-eval-in-buffer-window gnus-article-buffer
9558 (save-excursion
9559 (save-restriction
9560 (widen)
9561 (let ((pos (window-start))
c7a91ce1 9562 (inhibit-read-only t))
23f87bed
MB
9563 (goto-char (point-min))
9564 (when (message-goto-body)
9565 (gnus-narrow-to-body))
9566 (goto-char (point-min))
01c52d31 9567