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1 ;;; gnus.el --- a newsreader for GNU Emacs
2 ;; Copyright (C) 1987,88,89,90,93,94,95,96 Free Software Foundation, Inc.
4 ;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
5 ;; Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
25 ;;; Commentary:
27 ;;; Code:
29 (eval '(run-hooks 'gnus-load-hook))
31 (require 'mail-utils)
32 (require 'timezone)
33 (require 'nnheader)
34 (require 'nnmail)
35 (require 'backquote)
36 (require 'nnoo)
38 (eval-when-compile (require 'cl))
40 (defvar gnus-directory (or (getenv "SAVEDIR") "~/News/")
41 "*Directory variable from which all other Gnus file variables are derived.")
43 ;; Site dependent variables. These variables should be defined in
44 ;; paths.el.
46 (defvar gnus-default-nntp-server nil
47 "Specify a default NNTP server.
48 This variable should be defined in paths.el, and should never be set
49 by the user.
50 If you want to change servers, you should use `gnus-select-method'.
51 See the documentation to that variable.")
53 (defvar gnus-backup-default-subscribed-newsgroups
54 '("news.announce.newusers" "news.groups.questions" "gnu.emacs.gnus")
55 "Default default new newsgroups the first time Gnus is run.
56 Should be set in paths.el, and shouldn't be touched by the user.")
58 (defvar gnus-local-organization nil
59 "String with a description of what organization (if any) the user belongs to.
60 The ORGANIZATION environment variable is used instead if it is defined.
61 If this variable contains a function, this function will be called
62 with the current newsgroup name as the argument. The function should
63 return a string.
65 In any case, if the string (either in the variable, in the environment
66 variable, or returned by the function) is a file name, the contents of
67 this file will be used as the organization.")
69 ;; Customization variables
71 ;; Don't touch this variable.
72 (defvar gnus-nntp-service "nntp"
73 "*NNTP service name (\"nntp\" or 119).
74 This is an obsolete variable, which is scarcely used. If you use an
75 nntp server for your newsgroup and want to change the port number
76 used to 899, you would say something along these lines:
78 (setq gnus-select-method '(nntp \"my.nntp.server\" (nntp-port-number 899)))")
80 (defvar gnus-nntpserver-file "/etc/nntpserver"
81 "*A file with only the name of the nntp server in it.")
83 ;; This function is used to check both the environment variable
84 ;; NNTPSERVER and the /etc/nntpserver file to see whether one can find
85 ;; an nntp server name default.
86 (defun gnus-getenv-nntpserver ()
87 (or (getenv "NNTPSERVER")
88 (and (file-readable-p gnus-nntpserver-file)
89 (save-excursion
90 (set-buffer (get-buffer-create " *gnus nntp*"))
91 (buffer-disable-undo (current-buffer))
92 (insert-file-contents gnus-nntpserver-file)
93 (let ((name (buffer-string)))
94 (prog1
95 (if (string-match "^[ \t\n]*$" name)
96 nil
97 name)
98 (kill-buffer (current-buffer))))))))
100 (defvar gnus-select-method
101 (nconc
102 (list 'nntp (or (condition-case ()
103 (gnus-getenv-nntpserver)
104 (error nil))
105 (if (and gnus-default-nntp-server
106 (not (string= gnus-default-nntp-server "")))
107 gnus-default-nntp-server)
108 (system-name)))
109 (if (or (null gnus-nntp-service)
110 (equal gnus-nntp-service "nntp"))
112 (list gnus-nntp-service)))
113 "*Default method for selecting a newsgroup.
114 This variable should be a list, where the first element is how the
115 news is to be fetched, the second is the address.
117 For instance, if you want to get your news via NNTP from
118 \"flab.flab.edu\", you could say:
120 (setq gnus-select-method '(nntp \"flab.flab.edu\"))
122 If you want to use your local spool, say:
124 (setq gnus-select-method (list 'nnspool (system-name)))
126 If you use this variable, you must set `gnus-nntp-server' to nil.
128 There is a lot more to know about select methods and virtual servers -
129 see the manual for details.")
131 (defvar gnus-message-archive-method
132 `(nnfolder
133 "archive"
134 (nnfolder-directory ,(nnheader-concat message-directory "archive"))
135 (nnfolder-active-file
136 ,(nnheader-concat message-directory "archive/active"))
137 (nnfolder-get-new-mail nil)
138 (nnfolder-inhibit-expiry t))
139 "*Method used for archiving messages you've sent.
140 This should be a mail method.
142 It's probably not a very effective to change this variable once you've
143 run Gnus once. After doing that, you must edit this server from the
144 server buffer.")
146 (defvar gnus-message-archive-group nil
147 "*Name of the group in which to save the messages you've written.
148 This can either be a string, a list of strings; or an alist
149 of regexps/functions/forms to be evaluated to return a string (or a list
150 of strings). The functions are called with the name of the current
151 group (or nil) as a parameter.
153 Normally the group names returned by this variable should be
154 unprefixed -- which implictly means \"store on the archive server\".
155 However, you may wish to store the message on some other server. In
156 that case, just return a fully prefixed name of the group --
157 \"nnml+private:mail.misc\", for instance.")
159 (defvar gnus-refer-article-method nil
160 "*Preferred method for fetching an article by Message-ID.
161 If you are reading news from the local spool (with nnspool), fetching
162 articles by Message-ID is painfully slow. By setting this method to an
163 nntp method, you might get acceptable results.
165 The value of this variable must be a valid select method as discussed
166 in the documentation of `gnus-select-method'.")
168 (defvar gnus-secondary-select-methods nil
169 "*A list of secondary methods that will be used for reading news.
170 This is a list where each element is a complete select method (see
171 `gnus-select-method').
173 If, for instance, you want to read your mail with the nnml backend,
174 you could set this variable:
176 (setq gnus-secondary-select-methods '((nnml \"\")))")
178 (defvar gnus-secondary-servers nil
179 "*List of NNTP servers that the user can choose between interactively.
180 To make Gnus query you for a server, you have to give `gnus' a
181 non-numeric prefix - `C-u M-x gnus', in short.")
183 (defvar gnus-nntp-server nil
184 "*The name of the host running the NNTP server.
185 This variable is semi-obsolete. Use the `gnus-select-method'
186 variable instead.")
188 (defvar gnus-startup-file "~/.newsrc"
189 "*Your `.newsrc' file.
190 `.newsrc-SERVER' will be used instead if that exists.")
192 (defvar gnus-init-file "~/.gnus"
193 "*Your Gnus elisp startup file.
194 If a file with the .el or .elc suffixes exist, it will be read
195 instead.")
197 (defvar gnus-group-faq-directory
198 '("/ftp@mirrors.aol.com:/pub/rtfm/usenet/"
199 "/ftp@sunsite.auc.dk:/pub/usenet/"
200 "/ftp@sunsite.doc.ic.ac.uk:/pub/usenet/news-faqs/"
201 "/ftp@src.doc.ic.ac.uk:/usenet/news-FAQS/"
202 "/ftp@ftp.seas.gwu.edu:/pub/rtfm/"
203 "/ftp@rtfm.mit.edu:/pub/usenet/"
204 "/ftp@ftp.uni-paderborn.de:/pub/FAQ/"
205 "/ftp@ftp.sunet.se:/pub/usenet/"
206 "/ftp@nctuccca.edu.tw:/USENET/FAQ/"
207 "/ftp@hwarang.postech.ac.kr:/pub/usenet/"
208 "/ftp@ftp.hk.super.net:/mirror/faqs/")
209 "*Directory where the group FAQs are stored.
210 This will most commonly be on a remote machine, and the file will be
211 fetched by ange-ftp.
213 This variable can also be a list of directories. In that case, the
214 first element in the list will be used by default. The others can
215 be used when being prompted for a site.
217 Note that Gnus uses an aol machine as the default directory. If this
218 feels fundamentally unclean, just think of it as a way to finally get
219 something of value back from them.
221 If the default site is too slow, try one of these:
223 North America: mirrors.aol.com /pub/rtfm/usenet
224 ftp.seas.gwu.edu /pub/rtfm
225 rtfm.mit.edu /pub/usenet
226 Europe: ftp.uni-paderborn.de /pub/FAQ
227 src.doc.ic.ac.uk /usenet/news-FAQS
228 ftp.sunet.se /pub/usenet
229 sunsite.auc.dk /pub/usenet
230 Asia: nctuccca.edu.tw /USENET/FAQ
231 hwarang.postech.ac.kr /pub/usenet
232 ftp.hk.super.net /mirror/faqs")
234 (defvar gnus-group-archive-directory
235 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list/"
236 "*The address of the (ding) archives.")
238 (defvar gnus-group-recent-archive-directory
239 "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list-recent/"
240 "*The address of the most recent (ding) articles.")
242 (defvar gnus-default-subscribed-newsgroups nil
243 "*This variable lists what newsgroups should be subscribed the first time Gnus is used.
244 It should be a list of strings.
245 If it is `t', Gnus will not do anything special the first time it is
246 started; it'll just use the normal newsgroups subscription methods.")
248 (defvar gnus-use-cross-reference t
249 "*Non-nil means that cross referenced articles will be marked as read.
250 If nil, ignore cross references. If t, mark articles as read in
251 subscribed newsgroups. If neither t nor nil, mark as read in all
252 newsgroups.")
254 (defvar gnus-single-article-buffer t
255 "*If non-nil, display all articles in the same buffer.
256 If nil, each group will get its own article buffer.")
258 (defvar gnus-use-dribble-file t
259 "*Non-nil means that Gnus will use a dribble file to store user updates.
260 If Emacs should crash without saving the .newsrc files, complete
261 information can be restored from the dribble file.")
263 (defvar gnus-dribble-directory nil
264 "*The directory where dribble files will be saved.
265 If this variable is nil, the directory where the .newsrc files are
266 saved will be used.")
268 (defvar gnus-asynchronous nil
269 "*If non-nil, Gnus will supply backends with data needed for async article fetching.")
271 (defvar gnus-kill-summary-on-exit t
272 "*If non-nil, kill the summary buffer when you exit from it.
273 If nil, the summary will become a \"*Dead Summary*\" buffer, and
274 it will be killed sometime later.")
276 (defvar gnus-large-newsgroup 200
277 "*The number of articles which indicates a large newsgroup.
278 If the number of articles in a newsgroup is greater than this value,
279 confirmation is required for selecting the newsgroup.")
281 ;; Suggested by Andrew Eskilsson <pi92ae@lelle.pt.hk-r.se>.
282 (defvar gnus-no-groups-message "No news is horrible news"
283 "*Message displayed by Gnus when no groups are available.")
285 (defvar gnus-use-long-file-name (not (memq system-type '(usg-unix-v xenix)))
286 "*Non-nil means that the default name of a file to save articles in is the group name.
287 If it's nil, the directory form of the group name is used instead.
289 If this variable is a list, and the list contains the element
290 `not-score', long file names will not be used for score files; if it
291 contains the element `not-save', long file names will not be used for
292 saving; and if it contains the element `not-kill', long file names
293 will not be used for kill files.
295 Note that the default for this variable varies according to what system
296 type you're using. On `usg-unix-v' and `xenix' this variable defaults
297 to nil while on all other systems it defaults to t.")
299 (defvar gnus-article-save-directory gnus-directory
300 "*Name of the directory articles will be saved in (default \"~/News\").")
302 (defvar gnus-kill-files-directory gnus-directory
303 "*Name of the directory where kill files will be stored (default \"~/News\").")
305 (defvar gnus-default-article-saver 'gnus-summary-save-in-rmail
306 "*A function to save articles in your favorite format.
307 The function must be interactively callable (in other words, it must
308 be an Emacs command).
310 Gnus provides the following functions:
312 * gnus-summary-save-in-rmail (Rmail format)
313 * gnus-summary-save-in-mail (Unix mail format)
314 * gnus-summary-save-in-folder (MH folder)
315 * gnus-summary-save-in-file (article format).
316 * gnus-summary-save-in-vm (use VM's folder format).")
318 (defvar gnus-prompt-before-saving 'always
319 "*This variable says how much prompting is to be done when saving articles.
320 If it is nil, no prompting will be done, and the articles will be
321 saved to the default files. If this variable is `always', each and
322 every article that is saved will be preceded by a prompt, even when
323 saving large batches of articles. If this variable is neither nil not
324 `always', there the user will be prompted once for a file name for
325 each invocation of the saving commands.")
327 (defvar gnus-rmail-save-name (function gnus-plain-save-name)
328 "*A function generating a file name to save articles in Rmail format.
329 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
331 (defvar gnus-mail-save-name (function gnus-plain-save-name)
332 "*A function generating a file name to save articles in Unix mail format.
333 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
335 (defvar gnus-folder-save-name (function gnus-folder-save-name)
336 "*A function generating a file name to save articles in MH folder.
337 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER.")
339 (defvar gnus-file-save-name (function gnus-numeric-save-name)
340 "*A function generating a file name to save articles in article format.
341 The function is called with NEWSGROUP, HEADERS, and optional
342 LAST-FILE.")
344 (defvar gnus-split-methods
345 '((gnus-article-archive-name))
346 "*Variable used to suggest where articles are to be saved.
347 For instance, if you would like to save articles related to Gnus in
348 the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
349 you could set this variable to something like:
351 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
352 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
354 This variable is an alist where the where the key is the match and the
355 value is a list of possible files to save in if the match is non-nil.
357 If the match is a string, it is used as a regexp match on the
358 article. If the match is a symbol, that symbol will be funcalled
359 from the buffer of the article to be saved with the newsgroup as the
360 parameter. If it is a list, it will be evaled in the same buffer.
362 If this form or function returns a string, this string will be used as
363 a possible file name; and if it returns a non-nil list, that list will
364 be used as possible file names.")
366 (defvar gnus-move-split-methods nil
367 "*Variable used to suggest where articles are to be moved to.
368 It uses the same syntax as the `gnus-split-methods' variable.")
370 (defvar gnus-save-score nil
371 "*If non-nil, save group scoring info.")
373 (defvar gnus-use-adaptive-scoring nil
374 "*If non-nil, use some adaptive scoring scheme.")
376 (defvar gnus-use-cache 'passive
377 "*If nil, Gnus will ignore the article cache.
378 If `passive', it will allow entering (and reading) articles
379 explicitly entered into the cache. If anything else, use the
380 cache to the full extent of the law.")
382 (defvar gnus-use-trees nil
383 "*If non-nil, display a thread tree buffer.")
385 (defvar gnus-use-grouplens nil
386 "*If non-nil, use GroupLens ratings.")
388 (defvar gnus-keep-backlog nil
389 "*If non-nil, Gnus will keep read articles for later re-retrieval.
390 If it is a number N, then Gnus will only keep the last N articles
391 read. If it is neither nil nor a number, Gnus will keep all read
392 articles. This is not a good idea.")
394 (defvar gnus-use-nocem nil
395 "*If non-nil, Gnus will read NoCeM cancel messages.")
397 (defvar gnus-use-demon nil
398 "If non-nil, Gnus might use some demons.")
400 (defvar gnus-use-scoring t
401 "*If non-nil, enable scoring.")
403 (defvar gnus-use-picons nil
404 "*If non-nil, display picons.")
406 (defvar gnus-fetch-old-headers nil
407 "*Non-nil means that Gnus will try to build threads by grabbing old headers.
408 If an unread article in the group refers to an older, already read (or
409 just marked as read) article, the old article will not normally be
410 displayed in the Summary buffer. If this variable is non-nil, Gnus
411 will attempt to grab the headers to the old articles, and thereby
412 build complete threads. If it has the value `some', only enough
413 headers to connect otherwise loose threads will be displayed.
414 This variable can also be a number. In that case, no more than that
415 number of old headers will be fetched.
417 The server has to support NOV for any of this to work.")
419 ;see gnus-cus.el
420 ;(defvar gnus-visual t
421 ; "*If non-nil, will do various highlighting.
422 ;If nil, no mouse highlights (or any other highlights) will be
423 ;performed. This might speed up Gnus some when generating large group
424 ;and summary buffers.")
426 (defvar gnus-novice-user t
427 "*Non-nil means that you are a usenet novice.
428 If non-nil, verbose messages may be displayed and confirmations may be
429 required.")
431 (defvar gnus-expert-user nil
432 "*Non-nil means that you will never be asked for confirmation about anything.
433 And that means *anything*.")
435 (defvar gnus-verbose 7
436 "*Integer that says how verbose Gnus should be.
437 The higher the number, the more messages Gnus will flash to say what
438 it's doing. At zero, Gnus will be totally mute; at five, Gnus will
439 display most important messages; and at ten, Gnus will keep on
440 jabbering all the time.")
442 (defvar gnus-keep-same-level nil
443 "*Non-nil means that the next newsgroup after the current will be on the same level.
444 When you type, for instance, `n' after reading the last article in the
445 current newsgroup, you will go to the next newsgroup. If this variable
446 is nil, the next newsgroup will be the next from the group
447 buffer.
448 If this variable is non-nil, Gnus will either put you in the
449 next newsgroup with the same level, or, if no such newsgroup is
450 available, the next newsgroup with the lowest possible level higher
451 than the current level.
452 If this variable is `best', Gnus will make the next newsgroup the one
453 with the best level.")
455 (defvar gnus-summary-make-false-root 'adopt
456 "*nil means that Gnus won't gather loose threads.
457 If the root of a thread has expired or been read in a previous
458 session, the information necessary to build a complete thread has been
459 lost. Instead of having many small sub-threads from this original thread
460 scattered all over the summary buffer, Gnus can gather them.
462 If non-nil, Gnus will try to gather all loose sub-threads from an
463 original thread into one large thread.
465 If this variable is non-nil, it should be one of `none', `adopt',
466 `dummy' or `empty'.
468 If this variable is `none', Gnus will not make a false root, but just
469 present the sub-threads after another.
470 If this variable is `dummy', Gnus will create a dummy root that will
471 have all the sub-threads as children.
472 If this variable is `adopt', Gnus will make one of the \"children\"
473 the parent and mark all the step-children as such.
474 If this variable is `empty', the \"children\" are printed with empty
475 subject fields. (Or rather, they will be printed with a string
476 given by the `gnus-summary-same-subject' variable.)")
478 (defvar gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
479 "*A regexp to match subjects to be excluded from loose thread gathering.
480 As loose thread gathering is done on subjects only, that means that
481 there can be many false gatherings performed. By rooting out certain
482 common subjects, gathering might become saner.")
484 (defvar gnus-summary-gather-subject-limit nil
485 "*Maximum length of subject comparisons when gathering loose threads.
486 Use nil to compare full subjects. Setting this variable to a low
487 number will help gather threads that have been corrupted by
488 newsreaders chopping off subject lines, but it might also mean that
489 unrelated articles that have subject that happen to begin with the
490 same few characters will be incorrectly gathered.
492 If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
493 comparing subjects.")
495 (defvar gnus-simplify-ignored-prefixes nil
496 "*Regexp, matches for which are removed from subject lines when simplifying.")
498 (defvar gnus-build-sparse-threads nil
499 "*If non-nil, fill in the gaps in threads.
500 If `some', only fill in the gaps that are needed to tie loose threads
501 together. If `more', fill in all leaf nodes that Gnus can find. If
502 non-nil and non-`some', fill in all gaps that Gnus manages to guess.")
504 (defvar gnus-summary-thread-gathering-function 'gnus-gather-threads-by-subject
505 "Function used for gathering loose threads.
506 There are two pre-defined functions: `gnus-gather-threads-by-subject',
507 which only takes Subjects into consideration; and
508 `gnus-gather-threads-by-references', which compared the References
509 headers of the articles to find matches.")
511 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
512 (defvar gnus-summary-same-subject ""
513 "*String indicating that the current article has the same subject as the previous.
514 This variable will only be used if the value of
515 `gnus-summary-make-false-root' is `empty'.")
517 (defvar gnus-summary-goto-unread t
518 "*If non-nil, marking commands will go to the next unread article.
519 If `never', \\<gnus-summary-mode-map>\\[gnus-summary-next-page] will go to the next article,
520 whether it is read or not.")
522 (defvar gnus-group-goto-unread t
523 "*If non-nil, movement commands will go to the next unread and subscribed group.")
525 (defvar gnus-goto-next-group-when-activating t
526 "*If non-nil, the \\<gnus-group-mode-map>\\[gnus-group-get-new-news-this-group] command will advance point to the next group.")
528 (defvar gnus-check-new-newsgroups t
529 "*Non-nil means that Gnus will add new newsgroups at startup.
530 If this variable is `ask-server', Gnus will ask the server for new
531 groups since the last time it checked. This means that the killed list
532 is no longer necessary, so you could set `gnus-save-killed-list' to
533 nil.
535 A variant is to have this variable be a list of select methods. Gnus
536 will then use the `ask-server' method on all these select methods to
537 query for new groups from all those servers.
540 (setq gnus-check-new-newsgroups
541 '((nntp \"some.server\") (nntp \"other.server\")))
543 If this variable is nil, then you have to tell Gnus explicitly to
544 check for new newsgroups with \\<gnus-group-mode-map>\\[gnus-find-new-newsgroups].")
546 (defvar gnus-check-bogus-newsgroups nil
547 "*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
548 If this variable is nil, then you have to tell Gnus explicitly to
549 check for bogus newsgroups with \\<gnus-group-mode-map>\\[gnus-group-check-bogus-groups].")
551 (defvar gnus-read-active-file t
552 "*Non-nil means that Gnus will read the entire active file at startup.
553 If this variable is nil, Gnus will only know about the groups in your
554 `.newsrc' file.
556 If this variable is `some', Gnus will try to only read the relevant
557 parts of the active file from the server. Not all servers support
558 this, and it might be quite slow with other servers, but this should
559 generally be faster than both the t and nil value.
561 If you set this variable to nil or `some', you probably still want to
562 be told about new newsgroups that arrive. To do that, set
563 `gnus-check-new-newsgroups' to `ask-server'. This may not work
564 properly with all servers.")
566 (defvar gnus-level-subscribed 5
567 "*Groups with levels less than or equal to this variable are subscribed.")
569 (defvar gnus-level-unsubscribed 7
570 "*Groups with levels less than or equal to this variable are unsubscribed.
571 Groups with levels less than `gnus-level-subscribed', which should be
572 less than this variable, are subscribed.")
574 (defvar gnus-level-zombie 8
575 "*Groups with this level are zombie groups.")
577 (defvar gnus-level-killed 9
578 "*Groups with this level are killed.")
580 (defvar gnus-level-default-subscribed 3
581 "*New subscribed groups will be subscribed at this level.")
583 (defvar gnus-level-default-unsubscribed 6
584 "*New unsubscribed groups will be unsubscribed at this level.")
586 (defvar gnus-activate-level (1+ gnus-level-subscribed)
587 "*Groups higher than this level won't be activated on startup.
588 Setting this variable to something log might save lots of time when
589 you have many groups that you aren't interested in.")
591 (defvar gnus-activate-foreign-newsgroups 4
592 "*If nil, Gnus will not check foreign newsgroups at startup.
593 If it is non-nil, it should be a number between one and nine. Foreign
594 newsgroups that have a level lower or equal to this number will be
595 activated on startup. For instance, if you want to active all
596 subscribed newsgroups, but not the rest, you'd set this variable to
597 `gnus-level-subscribed'.
599 If you subscribe to lots of newsgroups from different servers, startup
600 might take a while. By setting this variable to nil, you'll save time,
601 but you won't be told how many unread articles there are in the
602 groups.")
604 (defvar gnus-save-newsrc-file t
605 "*Non-nil means that Gnus will save the `.newsrc' file.
606 Gnus always saves its own startup file, which is called
607 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
608 be readily understood by other newsreaders. If you don't plan on
609 using other newsreaders, set this variable to nil to save some time on
610 exit.")
612 (defvar gnus-save-killed-list t
613 "*If non-nil, save the list of killed groups to the startup file.
614 If you set this variable to nil, you'll save both time (when starting
615 and quitting) and space (both memory and disk), but it will also mean
616 that Gnus has no record of which groups are new and which are old, so
617 the automatic new newsgroups subscription methods become meaningless.
619 You should always set `gnus-check-new-newsgroups' to `ask-server' or
620 nil if you set this variable to nil.")
622 (defvar gnus-interactive-catchup t
623 "*If non-nil, require your confirmation when catching up a group.")
625 (defvar gnus-interactive-exit t
626 "*If non-nil, require your confirmation when exiting Gnus.")
628 (defvar gnus-kill-killed t
629 "*If non-nil, Gnus will apply kill files to already killed articles.
630 If it is nil, Gnus will never apply kill files to articles that have
631 already been through the scoring process, which might very well save lots
632 of time.")
634 (defvar gnus-extract-address-components 'gnus-extract-address-components
635 "*Function for extracting address components from a From header.
636 Two pre-defined function exist: `gnus-extract-address-components',
637 which is the default, quite fast, and too simplistic solution, and
638 `mail-extract-address-components', which works much better, but is
639 slower.")
641 (defvar gnus-summary-default-score 0
642 "*Default article score level.
643 If this variable is nil, scoring will be disabled.")
645 (defvar gnus-summary-zcore-fuzz 0
646 "*Fuzziness factor for the zcore in the summary buffer.
647 Articles with scores closer than this to `gnus-summary-default-score'
648 will not be marked.")
650 (defvar gnus-simplify-subject-fuzzy-regexp nil
651 "*Strings to be removed when doing fuzzy matches.
652 This can either be a regular expression or list of regular expressions
653 that will be removed from subject strings if fuzzy subject
654 simplification is selected.")
656 (defvar gnus-permanently-visible-groups nil
657 "*Regexp to match groups that should always be listed in the group buffer.
658 This means that they will still be listed when there are no unread
659 articles in the groups.")
661 (defvar gnus-list-groups-with-ticked-articles t
662 "*If non-nil, list groups that have only ticked articles.
663 If nil, only list groups that have unread articles.")
665 (defvar gnus-group-default-list-level gnus-level-subscribed
666 "*Default listing level.
667 Ignored if `gnus-group-use-permanent-levels' is non-nil.")
669 (defvar gnus-group-use-permanent-levels nil
670 "*If non-nil, once you set a level, Gnus will use this level.")
672 (defvar gnus-group-list-inactive-groups t
673 "*If non-nil, inactive groups will be listed.")
675 (defvar gnus-show-mime nil
676 "*If non-nil, do mime processing of articles.
677 The articles will simply be fed to the function given by
678 `gnus-show-mime-method'.")
680 (defvar gnus-strict-mime t
681 "*If nil, MIME-decode even if there is no Mime-Version header in the article.")
683 (defvar gnus-show-mime-method 'metamail-buffer
684 "*Function to process a MIME message.
685 The function is called from the article buffer.")
687 (defvar gnus-decode-encoded-word-method (lambda ())
688 "*Function to decode a MIME encoded-words.
689 The function is called from the article buffer.")
691 (defvar gnus-show-threads t
692 "*If non-nil, display threads in summary mode.")
694 (defvar gnus-thread-hide-subtree nil
695 "*If non-nil, hide all threads initially.
696 If threads are hidden, you have to run the command
697 `gnus-summary-show-thread' by hand or use `gnus-select-article-hook'
698 to expose hidden threads.")
700 (defvar gnus-thread-hide-killed t
701 "*If non-nil, hide killed threads automatically.")
703 (defvar gnus-thread-ignore-subject nil
704 "*If non-nil, ignore subjects and do all threading based on the Reference header.
705 If nil, which is the default, articles that have different subjects
706 from their parents will start separate threads.")
708 (defvar gnus-thread-operation-ignore-subject t
709 "*If non-nil, subjects will be ignored when doing thread commands.
710 This affects commands like `gnus-summary-kill-thread' and
711 `gnus-summary-lower-thread'.
713 If this variable is nil, articles in the same thread with different
714 subjects will not be included in the operation in question. If this
715 variable is `fuzzy', only articles that have subjects that are fuzzily
716 equal will be included.")
718 (defvar gnus-thread-indent-level 4
719 "*Number that says how much each sub-thread should be indented.")
721 (defvar gnus-ignored-newsgroups
722 (purecopy (mapconcat 'identity
723 '("^to\\." ; not "real" groups
724 "^[0-9. \t]+ " ; all digits in name
725 "[][\"#'()]" ; bogus characters
727 "\\|"))
728 "*A regexp to match uninteresting newsgroups in the active file.
729 Any lines in the active file matching this regular expression are
730 removed from the newsgroup list before anything else is done to it,
731 thus making them effectively non-existent.")
733 (defvar gnus-ignored-headers
734 "^Path:\\|^Posting-Version:\\|^Article-I.D.:\\|^Expires:\\|^Date-Received:\\|^References:\\|^Control:\\|^Xref:\\|^Lines:\\|^Posted:\\|^Relay-Version:\\|^Message-ID:\\|^Nf-ID:\\|^Nf-From:\\|^Approved:\\|^Sender:\\|^Received:\\|^Mail-from:"
735 "*All headers that match this regexp will be hidden.
736 This variable can also be a list of regexps of headers to be ignored.
737 If `gnus-visible-headers' is non-nil, this variable will be ignored.")
739 (defvar gnus-visible-headers "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-"
740 "*All headers that do not match this regexp will be hidden.
741 This variable can also be a list of regexp of headers to remain visible.
742 If this variable is non-nil, `gnus-ignored-headers' will be ignored.")
744 (defvar gnus-sorted-header-list
745 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:" "^To:"
746 "^Cc:" "^Date:" "^Organization:")
747 "*This variable is a list of regular expressions.
748 If it is non-nil, headers that match the regular expressions will
749 be placed first in the article buffer in the sequence specified by
750 this list.")
752 (defvar gnus-boring-article-headers
753 '(empty followup-to reply-to)
754 "*Headers that are only to be displayed if they have interesting data.
755 Possible values in this list are `empty', `newsgroups', `followup-to',
756 `reply-to', and `date'.")
758 (defvar gnus-show-all-headers nil
759 "*If non-nil, don't hide any headers.")
761 (defvar gnus-save-all-headers t
762 "*If non-nil, don't remove any headers before saving.")
764 (defvar gnus-saved-headers gnus-visible-headers
765 "*Headers to keep if `gnus-save-all-headers' is nil.
766 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
767 If that variable is nil, however, all headers that match this regexp
768 will be kept while the rest will be deleted before saving.")
770 (defvar gnus-inhibit-startup-message nil
771 "*If non-nil, the startup message will not be displayed.")
773 (defvar gnus-signature-separator "^-- *$"
774 "Regexp matching signature separator.")
776 (defvar gnus-signature-limit nil
777 "Provide a limit to what is considered a signature.
778 If it is a number, no signature may not be longer (in characters) than
779 that number. If it is a function, the function will be called without
780 any parameters, and if it returns nil, there is no signature in the
781 buffer. If it is a string, it will be used as a regexp. If it
782 matches, the text in question is not a signature.")
784 (defvar gnus-auto-extend-newsgroup t
785 "*If non-nil, extend newsgroup forward and backward when requested.")
787 (defvar gnus-auto-select-first t
788 "*If nil, don't select the first unread article when entering a group.
789 If this variable is `best', select the highest-scored unread article
790 in the group. If neither nil nor `best', select the first unread
791 article.
793 If you want to prevent automatic selection of the first unread article
794 in some newsgroups, set the variable to nil in
795 `gnus-select-group-hook'.")
797 (defvar gnus-auto-select-next t
798 "*If non-nil, offer to go to the next group from the end of the previous.
799 If the value is t and the next newsgroup is empty, Gnus will exit
800 summary mode and go back to group mode. If the value is neither nil
801 nor t, Gnus will select the following unread newsgroup. In
802 particular, if the value is the symbol `quietly', the next unread
803 newsgroup will be selected without any confirmation, and if it is
804 `almost-quietly', the next group will be selected without any
805 confirmation if you are located on the last article in the group.
806 Finally, if this variable is `slightly-quietly', the `Z n' command
807 will go to the next group without confirmation.")
809 (defvar gnus-auto-select-same nil
810 "*If non-nil, select the next article with the same subject.")
812 (defvar gnus-summary-check-current nil
813 "*If non-nil, consider the current article when moving.
814 The \"unread\" movement commands will stay on the same line if the
815 current article is unread.")
817 (defvar gnus-auto-center-summary t
818 "*If non-nil, always center the current summary buffer.
819 In particular, if `vertical' do only vertical recentering. If non-nil
820 and non-`vertical', do both horizontal and vertical recentering.")
822 (defvar gnus-break-pages t
823 "*If non-nil, do page breaking on articles.
824 The page delimiter is specified by the `gnus-page-delimiter'
825 variable.")
827 (defvar gnus-page-delimiter "^\^L"
828 "*Regexp describing what to use as article page delimiters.
829 The default value is \"^\^L\", which is a form linefeed at the
830 beginning of a line.")
832 (defvar gnus-use-full-window t
833 "*If non-nil, use the entire Emacs screen.")
835 (defvar gnus-window-configuration nil
836 "Obsolete variable. See `gnus-buffer-configuration'.")
838 (defvar gnus-window-min-width 2
839 "*Minimum width of Gnus buffers.")
841 (defvar gnus-window-min-height 1
842 "*Minimum height of Gnus buffers.")
844 (defvar gnus-buffer-configuration
845 '((group
846 (vertical 1.0
847 (group 1.0 point)
848 (if gnus-carpal '(group-carpal 4))))
849 (summary
850 (vertical 1.0
851 (summary 1.0 point)
852 (if gnus-carpal '(summary-carpal 4))))
853 (article
854 (cond
855 (gnus-use-picons
856 '(frame 1.0
857 (vertical 1.0
858 (summary 0.25 point)
859 (if gnus-carpal '(summary-carpal 4))
860 (article 1.0))
861 (vertical ((height . 5) (width . 15)
862 (user-position . t)
863 (left . -1) (top . 1))
864 (picons 1.0))))
865 (gnus-use-trees
866 '(vertical 1.0
867 (summary 0.25 point)
868 (tree 0.25)
869 (article 1.0)))
871 '(vertical 1.0
872 (summary 0.25 point)
873 (if gnus-carpal '(summary-carpal 4))
874 (article 1.0)))))
875 (server
876 (vertical 1.0
877 (server 1.0 point)
878 (if gnus-carpal '(server-carpal 2))))
879 (browse
880 (vertical 1.0
881 (browse 1.0 point)
882 (if gnus-carpal '(browse-carpal 2))))
883 (message
884 (vertical 1.0
885 (message 1.0 point)))
886 (pick
887 (vertical 1.0
888 (article 1.0 point)))
889 (info
890 (vertical 1.0
891 (info 1.0 point)))
892 (summary-faq
893 (vertical 1.0
894 (summary 0.25)
895 (faq 1.0 point)))
896 (edit-group
897 (vertical 1.0
898 (group 0.5)
899 (edit-group 1.0 point)))
900 (edit-server
901 (vertical 1.0
902 (server 0.5)
903 (edit-server 1.0 point)))
904 (edit-score
905 (vertical 1.0
906 (summary 0.25)
907 (edit-score 1.0 point)))
908 (post
909 (vertical 1.0
910 (post 1.0 point)))
911 (reply
912 (vertical 1.0
913 (article-copy 0.5)
914 (message 1.0 point)))
915 (forward
916 (vertical 1.0
917 (message 1.0 point)))
918 (reply-yank
919 (vertical 1.0
920 (message 1.0 point)))
921 (mail-bounce
922 (vertical 1.0
923 (article 0.5)
924 (message 1.0 point)))
925 (draft
926 (vertical 1.0
927 (draft 1.0 point)))
928 (pipe
929 (vertical 1.0
930 (summary 0.25 point)
931 (if gnus-carpal '(summary-carpal 4))
932 ("*Shell Command Output*" 1.0)))
933 (bug
934 (vertical 1.0
935 ("*Gnus Help Bug*" 0.5)
936 ("*Gnus Bug*" 1.0 point)))
937 (compose-bounce
938 (vertical 1.0
939 (article 0.5)
940 (message 1.0 point))))
941 "Window configuration for all possible Gnus buffers.
942 This variable is a list of lists. Each of these lists has a NAME and
943 a RULE. The NAMEs are commonsense names like `group', which names a
944 rule used when displaying the group buffer; `summary', which names a
945 rule for what happens when you enter a group and do not display an
946 article buffer; and so on. See the value of this variable for a
947 complete list of NAMEs.
949 Each RULE is a list of vectors. The first element in this vector is
950 the name of the buffer to be displayed; the second element is the
951 percentage of the screen this buffer is to occupy (a number in the
952 0.0-0.99 range); the optional third element is `point', which should
953 be present to denote which buffer point is to go to after making this
954 buffer configuration.")
956 (defvar gnus-window-to-buffer
957 '((group . gnus-group-buffer)
958 (summary . gnus-summary-buffer)
959 (article . gnus-article-buffer)
960 (server . gnus-server-buffer)
961 (browse . "*Gnus Browse Server*")
962 (edit-group . gnus-group-edit-buffer)
963 (edit-server . gnus-server-edit-buffer)
964 (group-carpal . gnus-carpal-group-buffer)
965 (summary-carpal . gnus-carpal-summary-buffer)
966 (server-carpal . gnus-carpal-server-buffer)
967 (browse-carpal . gnus-carpal-browse-buffer)
968 (edit-score . gnus-score-edit-buffer)
969 (message . gnus-message-buffer)
970 (mail . gnus-message-buffer)
971 (post-news . gnus-message-buffer)
972 (faq . gnus-faq-buffer)
973 (picons . "*Picons*")
974 (tree . gnus-tree-buffer)
975 (info . gnus-info-buffer)
976 (article-copy . gnus-article-copy)
977 (draft . gnus-draft-buffer))
978 "Mapping from short symbols to buffer names or buffer variables.")
980 (defvar gnus-carpal nil
981 "*If non-nil, display clickable icons.")
983 (defvar gnus-subscribe-newsgroup-method 'gnus-subscribe-zombies
984 "*Function called with a group name when new group is detected.
985 A few pre-made functions are supplied: `gnus-subscribe-randomly'
986 inserts new groups at the beginning of the list of groups;
987 `gnus-subscribe-alphabetically' inserts new groups in strict
988 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
989 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
990 for your decision; `gnus-subscribe-killed' kills all new groups;
991 `gnus-subscribe-zombies' will make all new groups into zombies.")
993 ;; Suggested by a bug report by Hallvard B Furuseth.
994 ;; <h.b.furuseth@usit.uio.no>.
995 (defvar gnus-subscribe-options-newsgroup-method
996 (function gnus-subscribe-alphabetically)
997 "*This function is called to subscribe newsgroups mentioned on \"options -n\" lines.
998 If, for instance, you want to subscribe to all newsgroups in the
999 \"no\" and \"alt\" hierarchies, you'd put the following in your
1000 .newsrc file:
1002 options -n no.all alt.all
1004 Gnus will the subscribe all new newsgroups in these hierarchies with
1005 the subscription method in this variable.")
1007 (defvar gnus-subscribe-hierarchical-interactive nil
1008 "*If non-nil, Gnus will offer to subscribe hierarchically.
1009 When a new hierarchy appears, Gnus will ask the user:
1011 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
1013 If the user pressed `d', Gnus will descend the hierarchy, `y' will
1014 subscribe to all newsgroups in the hierarchy and `s' will skip this
1015 hierarchy in its entirety.")
1017 (defvar gnus-group-sort-function 'gnus-group-sort-by-alphabet
1018 "*Function used for sorting the group buffer.
1019 This function will be called with group info entries as the arguments
1020 for the groups to be sorted. Pre-made functions include
1021 `gnus-group-sort-by-alphabet', `gnus-group-sort-by-unread',
1022 `gnus-group-sort-by-level', `gnus-group-sort-by-score', and
1023 `gnus-group-sort-by-rank'.
1025 This variable can also be a list of sorting functions. In that case,
1026 the most significant sort function should be the last function in the
1027 list.")
1029 ;; Mark variables suggested by Thomas Michanek
1030 ;; <Thomas.Michanek@telelogic.se>.
1031 (defvar gnus-unread-mark ?
1032 "*Mark used for unread articles.")
1033 (defvar gnus-ticked-mark ?!
1034 "*Mark used for ticked articles.")
1035 (defvar gnus-dormant-mark ??
1036 "*Mark used for dormant articles.")
1037 (defvar gnus-del-mark ?r
1038 "*Mark used for del'd articles.")
1039 (defvar gnus-read-mark ?R
1040 "*Mark used for read articles.")
1041 (defvar gnus-expirable-mark ?E
1042 "*Mark used for expirable articles.")
1043 (defvar gnus-killed-mark ?K
1044 "*Mark used for killed articles.")
1045 (defvar gnus-souped-mark ?F
1046 "*Mark used for killed articles.")
1047 (defvar gnus-kill-file-mark ?X
1048 "*Mark used for articles killed by kill files.")
1049 (defvar gnus-low-score-mark ?Y
1050 "*Mark used for articles with a low score.")
1051 (defvar gnus-catchup-mark ?C
1052 "*Mark used for articles that are caught up.")
1053 (defvar gnus-replied-mark ?A
1054 "*Mark used for articles that have been replied to.")
1055 (defvar gnus-cached-mark ?*
1056 "*Mark used for articles that are in the cache.")
1057 (defvar gnus-saved-mark ?S
1058 "*Mark used for articles that have been saved to.")
1059 (defvar gnus-process-mark ?#
1060 "*Process mark.")
1061 (defvar gnus-ancient-mark ?O
1062 "*Mark used for ancient articles.")
1063 (defvar gnus-sparse-mark ?Q
1064 "*Mark used for sparsely reffed articles.")
1065 (defvar gnus-canceled-mark ?G
1066 "*Mark used for canceled articles.")
1067 (defvar gnus-score-over-mark ?+
1068 "*Score mark used for articles with high scores.")
1069 (defvar gnus-score-below-mark ?-
1070 "*Score mark used for articles with low scores.")
1071 (defvar gnus-empty-thread-mark ?
1072 "*There is no thread under the article.")
1073 (defvar gnus-not-empty-thread-mark ?=
1074 "*There is a thread under the article.")
1076 (defvar gnus-view-pseudo-asynchronously nil
1077 "*If non-nil, Gnus will view pseudo-articles asynchronously.")
1079 (defvar gnus-view-pseudos nil
1080 "*If `automatic', pseudo-articles will be viewed automatically.
1081 If `not-confirm', pseudos will be viewed automatically, and the user
1082 will not be asked to confirm the command.")
1084 (defvar gnus-view-pseudos-separately t
1085 "*If non-nil, one pseudo-article will be created for each file to be viewed.
1086 If nil, all files that use the same viewing command will be given as a
1087 list of parameters to that command.")
1089 (defvar gnus-insert-pseudo-articles t
1090 "*If non-nil, insert pseudo-articles when decoding articles.")
1092 (defvar gnus-group-line-format "%M%S%p%P%5y: %(%g%)%l\n"
1093 "*Format of group lines.
1094 It works along the same lines as a normal formatting string,
1095 with some simple extensions.
1097 %M Only marked articles (character, \"*\" or \" \")
1098 %S Whether the group is subscribed (character, \"U\", \"K\", \"Z\" or \" \")
1099 %L Level of subscribedness (integer)
1100 %N Number of unread articles (integer)
1101 %I Number of dormant articles (integer)
1102 %i Number of ticked and dormant (integer)
1103 %T Number of ticked articles (integer)
1104 %R Number of read articles (integer)
1105 %t Total number of articles (integer)
1106 %y Number of unread, unticked articles (integer)
1107 %G Group name (string)
1108 %g Qualified group name (string)
1109 %D Group description (string)
1110 %s Select method (string)
1111 %o Moderated group (char, \"m\")
1112 %p Process mark (char)
1113 %O Moderated group (string, \"(m)\" or \"\")
1114 %P Topic indentation (string)
1115 %l Whether there are GroupLens predictions for this group (string)
1116 %n Select from where (string)
1117 %z A string that look like `<%s:%n>' if a foreign select method is used
1118 %u User defined specifier. The next character in the format string should
1119 be a letter. Gnus will call the function gnus-user-format-function-X,
1120 where X is the letter following %u. The function will be passed the
1121 current header as argument. The function should return a string, which
1122 will be inserted into the buffer just like information from any other
1123 group specifier.
1125 Text between %( and %) will be highlighted with `gnus-mouse-face' when
1126 the mouse point move inside the area. There can only be one such area.
1128 Note that this format specification is not always respected. For
1129 reasons of efficiency, when listing killed groups, this specification
1130 is ignored altogether. If the spec is changed considerably, your
1131 output may end up looking strange when listing both alive and killed
1132 groups.
1134 If you use %o or %O, reading the active file will be slower and quite
1135 a bit of extra memory will be used. %D will also worsen performance.
1136 Also note that if you change the format specification to include any
1137 of these specs, you must probably re-start Gnus to see them go into
1138 effect.")
1140 (defvar gnus-summary-line-format "%U%R%z%I%(%[%4L: %-20,20n%]%) %s\n"
1141 "*The format specification of the lines in the summary buffer.
1143 It works along the same lines as a normal formatting string,
1144 with some simple extensions.
1146 %N Article number, left padded with spaces (string)
1147 %S Subject (string)
1148 %s Subject if it is at the root of a thread, and \"\" otherwise (string)
1149 %n Name of the poster (string)
1150 %a Extracted name of the poster (string)
1151 %A Extracted address of the poster (string)
1152 %F Contents of the From: header (string)
1153 %x Contents of the Xref: header (string)
1154 %D Date of the article (string)
1155 %d Date of the article (string) in DD-MMM format
1156 %M Message-id of the article (string)
1157 %r References of the article (string)
1158 %c Number of characters in the article (integer)
1159 %L Number of lines in the article (integer)
1160 %I Indentation based on thread level (a string of spaces)
1161 %T A string with two possible values: 80 spaces if the article
1162 is on thread level two or larger and 0 spaces on level one
1163 %R \"A\" if this article has been replied to, \" \" otherwise (character)
1164 %U Status of this article (character, \"R\", \"K\", \"-\" or \" \")
1165 %[ Opening bracket (character, \"[\" or \"<\")
1166 %] Closing bracket (character, \"]\" or \">\")
1167 %> Spaces of length thread-level (string)
1168 %< Spaces of length (- 20 thread-level) (string)
1169 %i Article score (number)
1170 %z Article zcore (character)
1171 %t Number of articles under the current thread (number).
1172 %e Whether the thread is empty or not (character).
1173 %l GroupLens score (string).
1174 %u User defined specifier. The next character in the format string should
1175 be a letter. Gnus will call the function gnus-user-format-function-X,
1176 where X is the letter following %u. The function will be passed the
1177 current header as argument. The function should return a string, which
1178 will be inserted into the summary just like information from any other
1179 summary specifier.
1181 Text between %( and %) will be highlighted with `gnus-mouse-face'
1182 when the mouse point is placed inside the area. There can only be one
1183 such area.
1185 The %U (status), %R (replied) and %z (zcore) specs have to be handled
1186 with care. For reasons of efficiency, Gnus will compute what column
1187 these characters will end up in, and \"hard-code\" that. This means that
1188 it is illegal to have these specs after a variable-length spec. Well,
1189 you might not be arrested, but your summary buffer will look strange,
1190 which is bad enough.
1192 The smart choice is to have these specs as for to the left as
1193 possible.
1195 This restriction may disappear in later versions of Gnus.")
1197 (defvar gnus-summary-dummy-line-format
1198 "* %(: :%) %S\n"
1199 "*The format specification for the dummy roots in the summary buffer.
1200 It works along the same lines as a normal formatting string,
1201 with some simple extensions.
1203 %S The subject")
1205 (defvar gnus-summary-mode-line-format "Gnus: %%b [%A] %Z"
1206 "*The format specification for the summary mode line.
1207 It works along the same lines as a normal formatting string,
1208 with some simple extensions:
1210 %G Group name
1211 %p Unprefixed group name
1212 %A Current article number
1213 %V Gnus version
1214 %U Number of unread articles in the group
1215 %e Number of unselected articles in the group
1216 %Z A string with unread/unselected article counts
1217 %g Shortish group name
1218 %S Subject of the current article
1219 %u User-defined spec
1220 %s Current score file name
1221 %d Number of dormant articles
1222 %r Number of articles that have been marked as read in this session
1223 %E Number of articles expunged by the score files")
1225 (defvar gnus-article-mode-line-format "Gnus: %%b %S"
1226 "*The format specification for the article mode line.
1227 See `gnus-summary-mode-line-format' for a closer description.")
1229 (defvar gnus-group-mode-line-format "Gnus: %%b {%M%:%S}"
1230 "*The format specification for the group mode line.
1231 It works along the same lines as a normal formatting string,
1232 with some simple extensions:
1234 %S The native news server.
1235 %M The native select method.
1236 %: \":\" if %S isn't \"\".")
1238 (defvar gnus-valid-select-methods
1239 '(("nntp" post address prompt-address)
1240 ("nnspool" post address)
1241 ("nnvirtual" post-mail virtual prompt-address)
1242 ("nnmbox" mail respool address)
1243 ("nnml" mail respool address)
1244 ("nnmh" mail respool address)
1245 ("nndir" post-mail prompt-address address)
1246 ("nneething" none address prompt-address)
1247 ("nndoc" none address prompt-address)
1248 ("nnbabyl" mail address respool)
1249 ("nnkiboze" post virtual)
1250 ("nnsoup" post-mail address)
1251 ("nndraft" post-mail)
1252 ("nnfolder" mail respool address))
1253 "An alist of valid select methods.
1254 The first element of each list lists should be a string with the name
1255 of the select method. The other elements may be be the category of
1256 this method (ie. `post', `mail', `none' or whatever) or other
1257 properties that this method has (like being respoolable).
1258 If you implement a new select method, all you should have to change is
1259 this variable. I think.")
1261 (defvar gnus-updated-mode-lines '(group article summary tree)
1262 "*List of buffers that should update their mode lines.
1263 The list may contain the symbols `group', `article' and `summary'. If
1264 the corresponding symbol is present, Gnus will keep that mode line
1265 updated with information that may be pertinent.
1266 If this variable is nil, screen refresh may be quicker.")
1268 ;; Added by Keinonen Kari <kk85613@cs.tut.fi>.
1269 (defvar gnus-mode-non-string-length nil
1270 "*Max length of mode-line non-string contents.
1271 If this is nil, Gnus will take space as is needed, leaving the rest
1272 of the modeline intact.")
1274 ;see gnus-cus.el
1275 ;(defvar gnus-mouse-face 'highlight
1276 ; "*Face used for mouse highlighting in Gnus.
1277 ;No mouse highlights will be done if `gnus-visual' is nil.")
1279 (defvar gnus-summary-mark-below 0
1280 "*Mark all articles with a score below this variable as read.
1281 This variable is local to each summary buffer and usually set by the
1282 score file.")
1284 (defvar gnus-article-sort-functions '(gnus-article-sort-by-number)
1285 "*List of functions used for sorting articles in the summary buffer.
1286 This variable is only used when not using a threaded display.")
1288 (defvar gnus-thread-sort-functions '(gnus-thread-sort-by-number)
1289 "*List of functions used for sorting threads in the summary buffer.
1290 By default, threads are sorted by article number.
1292 Each function takes two threads and return non-nil if the first thread
1293 should be sorted before the other. If you use more than one function,
1294 the primary sort function should be the last. You should probably
1295 always include `gnus-thread-sort-by-number' in the list of sorting
1296 functions -- preferably first.
1298 Ready-mady functions include `gnus-thread-sort-by-number',
1299 `gnus-thread-sort-by-author', `gnus-thread-sort-by-subject',
1300 `gnus-thread-sort-by-date', `gnus-thread-sort-by-score' and
1301 `gnus-thread-sort-by-total-score' (see `gnus-thread-score-function').")
1303 (defvar gnus-thread-score-function '+
1304 "*Function used for calculating the total score of a thread.
1306 The function is called with the scores of the article and each
1307 subthread and should then return the score of the thread.
1309 Some functions you can use are `+', `max', or `min'.")
1311 (defvar gnus-summary-expunge-below nil
1312 "All articles that have a score less than this variable will be expunged.")
1314 (defvar gnus-thread-expunge-below nil
1315 "All threads that have a total score less than this variable will be expunged.
1316 See `gnus-thread-score-function' for en explanation of what a
1317 \"thread score\" is.")
1319 (defvar gnus-auto-subscribed-groups
1320 "^nnml\\|^nnfolder\\|^nnmbox\\|^nnmh\\|^nnbabyl"
1321 "*All new groups that match this regexp will be subscribed automatically.
1322 Note that this variable only deals with new groups. It has no effect
1323 whatsoever on old groups.
1325 New groups that match this regexp will not be handled by
1326 `gnus-subscribe-newsgroup-method'. Instead, they will
1327 be subscribed using `gnus-subscribe-options-newsgroup-method'.")
1329 (defvar gnus-options-subscribe nil
1330 "*All new groups matching this regexp will be subscribed unconditionally.
1331 Note that this variable deals only with new newsgroups. This variable
1332 does not affect old newsgroups.
1334 New groups that match this regexp will not be handled by
1335 `gnus-subscribe-newsgroup-method'. Instead, they will
1336 be subscribed using `gnus-subscribe-options-newsgroup-method'.")
1338 (defvar gnus-options-not-subscribe nil
1339 "*All new groups matching this regexp will be ignored.
1340 Note that this variable deals only with new newsgroups. This variable
1341 does not affect old (already subscribed) newsgroups.")
1343 (defvar gnus-auto-expirable-newsgroups nil
1344 "*Groups in which to automatically mark read articles as expirable.
1345 If non-nil, this should be a regexp that should match all groups in
1346 which to perform auto-expiry. This only makes sense for mail groups.")
1348 (defvar gnus-total-expirable-newsgroups nil
1349 "*Groups in which to perform expiry of all read articles.
1350 Use with extreme caution. All groups that match this regexp will be
1351 expiring - which means that all read articles will be deleted after
1352 (say) one week. (This only goes for mail groups and the like, of
1353 course.)")
1355 (defvar gnus-group-uncollapsed-levels 1
1356 "Number of group name elements to leave alone when making a short group name.")
1358 (defvar gnus-hidden-properties '(invisible t intangible t)
1359 "Property list to use for hiding text.")
1361 (defvar gnus-modtime-botch nil
1362 "*Non-nil means .newsrc should be deleted prior to save.
1363 Its use is due to the bogus appearance that .newsrc was modified on
1364 disc.")
1366 ;; Hooks.
1368 (defvar gnus-group-mode-hook nil
1369 "*A hook for Gnus group mode.")
1371 (defvar gnus-summary-mode-hook nil
1372 "*A hook for Gnus summary mode.
1373 This hook is run before any variables are set in the summary buffer.")
1375 (defvar gnus-article-mode-hook nil
1376 "*A hook for Gnus article mode.")
1378 (defvar gnus-summary-prepare-exit-hook nil
1379 "*A hook called when preparing to exit from the summary buffer.
1380 It calls `gnus-summary-expire-articles' by default.")
1381 (add-hook 'gnus-summary-prepare-exit-hook 'gnus-summary-expire-articles)
1383 (defvar gnus-summary-exit-hook nil
1384 "*A hook called on exit from the summary buffer.")
1386 (defvar gnus-group-catchup-group-hook nil
1387 "*A hook run when catching up a group from the group buffer.")
1389 (defvar gnus-group-update-group-hook nil
1390 "*A hook called when updating group lines.")
1392 (defvar gnus-open-server-hook nil
1393 "*A hook called just before opening connection to the news server.")
1395 (defvar gnus-load-hook nil
1396 "*A hook run while Gnus is loaded.")
1398 (defvar gnus-startup-hook nil
1399 "*A hook called at startup.
1400 This hook is called after Gnus is connected to the NNTP server.")
1402 (defvar gnus-get-new-news-hook nil
1403 "*A hook run just before Gnus checks for new news.")
1405 (defvar gnus-after-getting-new-news-hook nil
1406 "*A hook run after Gnus checks for new news.")
1408 (defvar gnus-group-prepare-function 'gnus-group-prepare-flat
1409 "*A function that is called to generate the group buffer.
1410 The function is called with three arguments: The first is a number;
1411 all group with a level less or equal to that number should be listed,
1412 if the second is non-nil, empty groups should also be displayed. If
1413 the third is non-nil, it is a number. No groups with a level lower
1414 than this number should be displayed.
1416 The only current function implemented is `gnus-group-prepare-flat'.")
1418 (defvar gnus-group-prepare-hook nil
1419 "*A hook called after the group buffer has been generated.
1420 If you want to modify the group buffer, you can use this hook.")
1422 (defvar gnus-summary-prepare-hook nil
1423 "*A hook called after the summary buffer has been generated.
1424 If you want to modify the summary buffer, you can use this hook.")
1426 (defvar gnus-summary-generate-hook nil
1427 "*A hook run just before generating the summary buffer.
1428 This hook is commonly used to customize threading variables and the
1429 like.")
1431 (defvar gnus-article-prepare-hook nil
1432 "*A hook called after an article has been prepared in the article buffer.
1433 If you want to run a special decoding program like nkf, use this hook.")
1435 ;(defvar gnus-article-display-hook nil
1436 ; "*A hook called after the article is displayed in the article buffer.
1437 ;The hook is designed to change the contents of the article
1438 ;buffer. Typical functions that this hook may contain are
1439 ;`gnus-article-hide-headers' (hide selected headers),
1440 ;`gnus-article-maybe-highlight' (perform fancy article highlighting),
1441 ;`gnus-article-hide-signature' (hide signature) and
1442 ;`gnus-article-treat-overstrike' (turn \"^H_\" into bold characters).")
1443 ;(add-hook 'gnus-article-display-hook 'gnus-article-hide-headers-if-wanted)
1444 ;(add-hook 'gnus-article-display-hook 'gnus-article-treat-overstrike)
1445 ;(add-hook 'gnus-article-display-hook 'gnus-article-maybe-highlight)
1447 (defvar gnus-article-x-face-too-ugly nil
1448 "Regexp matching posters whose face shouldn't be shown automatically.")
1450 (defvar gnus-select-group-hook nil
1451 "*A hook called when a newsgroup is selected.
1453 If you'd like to simplify subjects like the
1454 `gnus-summary-next-same-subject' command does, you can use the
1455 following hook:
1457 (setq gnus-select-group-hook
1458 (list
1459 (lambda ()
1460 (mapcar (lambda (header)
1461 (mail-header-set-subject
1462 header
1463 (gnus-simplify-subject
1464 (mail-header-subject header) 're-only)))
1465 gnus-newsgroup-headers))))")
1467 (defvar gnus-select-article-hook nil
1468 "*A hook called when an article is selected.")
1470 (defvar gnus-apply-kill-hook '(gnus-apply-kill-file)
1471 "*A hook called to apply kill files to a group.
1472 This hook is intended to apply a kill file to the selected newsgroup.
1473 The function `gnus-apply-kill-file' is called by default.
1475 Since a general kill file is too heavy to use only for a few
1476 newsgroups, I recommend you to use a lighter hook function. For
1477 example, if you'd like to apply a kill file to articles which contains
1478 a string `rmgroup' in subject in newsgroup `control', you can use the
1479 following hook:
1481 (setq gnus-apply-kill-hook
1482 (list
1483 (lambda ()
1484 (cond ((string-match \"control\" gnus-newsgroup-name)
1485 (gnus-kill \"Subject\" \"rmgroup\")
1486 (gnus-expunge \"X\"))))))")
1488 (defvar gnus-visual-mark-article-hook
1489 (list 'gnus-highlight-selected-summary)
1490 "*Hook run after selecting an article in the summary buffer.
1491 It is meant to be used for highlighting the article in some way. It
1492 is not run if `gnus-visual' is nil.")
1494 (defvar gnus-parse-headers-hook nil
1495 "*A hook called before parsing the headers.")
1496 (add-hook 'gnus-parse-headers-hook 'gnus-decode-rfc1522)
1498 (defvar gnus-exit-group-hook nil
1499 "*A hook called when exiting (not quitting) summary mode.")
1501 (defvar gnus-suspend-gnus-hook nil
1502 "*A hook called when suspending (not exiting) Gnus.")
1504 (defvar gnus-exit-gnus-hook nil
1505 "*A hook called when exiting Gnus.")
1507 (defvar gnus-after-exiting-gnus-hook nil
1508 "*A hook called after exiting Gnus.")
1510 (defvar gnus-save-newsrc-hook nil
1511 "*A hook called before saving any of the newsrc files.")
1513 (defvar gnus-save-quick-newsrc-hook nil
1514 "*A hook called just before saving the quick newsrc file.
1515 Can be used to turn version control on or off.")
1517 (defvar gnus-save-standard-newsrc-hook nil
1518 "*A hook called just before saving the standard newsrc file.
1519 Can be used to turn version control on or off.")
1521 (defvar gnus-summary-update-hook
1522 (list 'gnus-summary-highlight-line)
1523 "*A hook called when a summary line is changed.
1524 The hook will not be called if `gnus-visual' is nil.
1526 The default function `gnus-summary-highlight-line' will
1527 highlight the line according to the `gnus-summary-highlight'
1528 variable.")
1530 (defvar gnus-group-update-hook '(gnus-group-highlight-line)
1531 "*A hook called when a group line is changed.
1532 The hook will not be called if `gnus-visual' is nil.
1534 The default function `gnus-group-highlight-line' will
1535 highlight the line according to the `gnus-group-highlight'
1536 variable.")
1538 (defvar gnus-mark-article-hook '(gnus-summary-mark-read-and-unread-as-read)
1539 "*A hook called when an article is selected for the first time.
1540 The hook is intended to mark an article as read (or unread)
1541 automatically when it is selected.")
1543 (defvar gnus-group-change-level-function nil
1544 "Function run when a group level is changed.
1545 It is called with three parameters -- GROUP, LEVEL and OLDLEVEL.")
1547 ;; Remove any hilit infestation.
1548 (add-hook 'gnus-startup-hook
1549 (lambda ()
1550 (remove-hook 'gnus-summary-prepare-hook
1551 'hilit-rehighlight-buffer-quietly)
1552 (remove-hook 'gnus-summary-prepare-hook 'hilit-install-line-hooks)
1553 (setq gnus-mark-article-hook
1554 '(gnus-summary-mark-read-and-unread-as-read))
1555 (remove-hook 'gnus-article-prepare-hook
1556 'hilit-rehighlight-buffer-quietly)))
1559 ;; Internal variables
1561 (defvar gnus-tree-buffer "*Tree*"
1562 "Buffer where Gnus thread trees are displayed.")
1564 ;; Dummy variable.
1565 (defvar gnus-use-generic-from nil)
1567 (defvar gnus-thread-indent-array nil)
1568 (defvar gnus-thread-indent-array-level gnus-thread-indent-level)
1570 (defvar gnus-newsrc-file-version nil)
1572 (defvar gnus-method-history nil)
1573 ;; Variable holding the user answers to all method prompts.
1575 (defvar gnus-group-history nil)
1576 ;; Variable holding the user answers to all group prompts.
1578 (defvar gnus-server-alist nil
1579 "List of available servers.")
1581 (defvar gnus-group-indentation-function nil)
1583 (defvar gnus-topic-indentation "") ;; Obsolete variable.
1585 (defvar gnus-goto-missing-group-function nil)
1587 (defvar gnus-override-subscribe-method nil)
1589 (defvar gnus-group-goto-next-group-function nil
1590 "Function to override finding the next group after listing groups.")
1592 (defconst gnus-article-mark-lists
1593 '((marked . tick) (replied . reply)
1594 (expirable . expire) (killed . killed)
1595 (bookmarks . bookmark) (dormant . dormant)
1596 (scored . score) (saved . save)
1597 (cached . cache)
1600 ;; Avoid highlighting in kill files.
1601 (defvar gnus-summary-inhibit-highlight nil)
1602 (defvar gnus-newsgroup-selected-overlay nil)
1604 (defvar gnus-inhibit-hiding nil)
1605 (defvar gnus-group-indentation "")
1606 (defvar gnus-inhibit-limiting nil)
1607 (defvar gnus-created-frames nil)
1609 (defvar gnus-article-mode-map nil)
1610 (defvar gnus-dribble-buffer nil)
1611 (defvar gnus-headers-retrieved-by nil)
1612 (defvar gnus-article-reply nil)
1613 (defvar gnus-override-method nil)
1614 (defvar gnus-article-check-size nil)
1616 (defvar gnus-current-score-file nil)
1617 (defvar gnus-newsgroup-adaptive-score-file nil)
1618 (defvar gnus-scores-exclude-files nil)
1620 (defvar gnus-opened-servers nil)
1622 (defvar gnus-current-move-group nil)
1623 (defvar gnus-current-copy-group nil)
1624 (defvar gnus-current-crosspost-group nil)
1626 (defvar gnus-newsgroup-dependencies nil)
1627 (defvar gnus-newsgroup-async nil)
1628 (defconst gnus-group-edit-buffer "*Gnus edit newsgroup*")
1630 (defvar gnus-newsgroup-adaptive nil)
1632 (defvar gnus-summary-display-table nil)
1633 (defvar gnus-summary-display-article-function nil)
1635 (defvar gnus-summary-highlight-line-function nil
1636 "Function called after highlighting a summary line.")
1638 (defvar gnus-group-line-format-alist
1639 `((?M gnus-tmp-marked-mark ?c)
1640 (?S gnus-tmp-subscribed ?c)
1641 (?L gnus-tmp-level ?d)
1642 (?N (cond ((eq number t) "*" )
1643 ((numberp number)
1644 (int-to-string
1645 (+ number
1646 (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
1647 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))))))
1648 (t number)) ?s)
1649 (?R gnus-tmp-number-of-read ?s)
1650 (?t gnus-tmp-number-total ?d)
1651 (?y gnus-tmp-number-of-unread ?s)
1652 (?I (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked))) ?d)
1653 (?T (gnus-range-length (cdr (assq 'tick gnus-tmp-marked))) ?d)
1654 (?i (+ (gnus-range-length (cdr (assq 'dormant gnus-tmp-marked)))
1655 (gnus-range-length (cdr (assq 'tick gnus-tmp-marked)))) ?d)
1656 (?g gnus-tmp-group ?s)
1657 (?G gnus-tmp-qualified-group ?s)
1658 (?c (gnus-short-group-name gnus-tmp-group) ?s)
1659 (?D gnus-tmp-newsgroup-description ?s)
1660 (?o gnus-tmp-moderated ?c)
1661 (?O gnus-tmp-moderated-string ?s)
1662 (?p gnus-tmp-process-marked ?c)
1663 (?s gnus-tmp-news-server ?s)
1664 (?n gnus-tmp-news-method ?s)
1665 (?P gnus-group-indentation ?s)
1666 (?l gnus-tmp-grouplens ?s)
1667 (?z gnus-tmp-news-method-string ?s)
1668 (?u gnus-tmp-user-defined ?s)))
1670 (defvar gnus-summary-line-format-alist
1671 `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
1672 (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
1673 (?s gnus-tmp-subject-or-nil ?s)
1674 (?n gnus-tmp-name ?s)
1675 (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
1677 (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
1678 gnus-tmp-from) ?s)
1679 (?F gnus-tmp-from ?s)
1680 (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
1681 (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
1682 (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
1683 (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
1684 (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
1685 (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
1686 (?L gnus-tmp-lines ?d)
1687 (?I gnus-tmp-indentation ?s)
1688 (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
1689 (?R gnus-tmp-replied ?c)
1690 (?\[ gnus-tmp-opening-bracket ?c)
1691 (?\] gnus-tmp-closing-bracket ?c)
1692 (?\> (make-string gnus-tmp-level ? ) ?s)
1693 (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
1694 (?i gnus-tmp-score ?d)
1695 (?z gnus-tmp-score-char ?c)
1696 (?l (bbb-grouplens-score gnus-tmp-header) ?s)
1697 (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
1698 (?U gnus-tmp-unread ?c)
1699 (?t (gnus-summary-number-of-articles-in-thread
1700 (and (boundp 'thread) (car thread)) gnus-tmp-level)
1702 (?e (gnus-summary-number-of-articles-in-thread
1703 (and (boundp 'thread) (car thread)) gnus-tmp-level t)
1705 (?u gnus-tmp-user-defined ?s))
1706 "An alist of format specifications that can appear in summary lines,
1707 and what variables they correspond with, along with the type of the
1708 variable (string, integer, character, etc).")
1710 (defvar gnus-summary-dummy-line-format-alist
1711 `((?S gnus-tmp-subject ?s)
1712 (?N gnus-tmp-number ?d)
1713 (?u gnus-tmp-user-defined ?s)))
1715 (defvar gnus-summary-mode-line-format-alist
1716 `((?G gnus-tmp-group-name ?s)
1717 (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
1718 (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
1719 (?A gnus-tmp-article-number ?d)
1720 (?Z gnus-tmp-unread-and-unselected ?s)
1721 (?V gnus-version ?s)
1722 (?U gnus-tmp-unread-and-unticked ?d)
1723 (?S gnus-tmp-subject ?s)
1724 (?e gnus-tmp-unselected ?d)
1725 (?u gnus-tmp-user-defined ?s)
1726 (?d (length gnus-newsgroup-dormant) ?d)
1727 (?t (length gnus-newsgroup-marked) ?d)
1728 (?r (length gnus-newsgroup-reads) ?d)
1729 (?E gnus-newsgroup-expunged-tally ?d)
1730 (?s (gnus-current-score-file-nondirectory) ?s)))
1732 (defvar gnus-article-mode-line-format-alist
1733 gnus-summary-mode-line-format-alist)
1735 (defvar gnus-group-mode-line-format-alist
1736 `((?S gnus-tmp-news-server ?s)
1737 (?M gnus-tmp-news-method ?s)
1738 (?u gnus-tmp-user-defined ?s)
1739 (?: gnus-tmp-colon ?s)))
1741 (defvar gnus-have-read-active-file nil)
1743 (defconst gnus-maintainer
1744 "gnus-bug@ifi.uio.no (The Gnus Bugfixing Girls + Boys)"
1745 "The mail address of the Gnus maintainers.")
1747 (defconst gnus-version-number "5.3"
1748 "Version number for this version of Gnus.")
1750 (defconst gnus-version (format "Gnus v%s" gnus-version-number)
1751 "Version string for this version of Gnus.")
1753 (defvar gnus-info-nodes
1754 '((gnus-group-mode "(gnus)The Group Buffer")
1755 (gnus-summary-mode "(gnus)The Summary Buffer")
1756 (gnus-article-mode "(gnus)The Article Buffer")
1757 (gnus-server-mode "(gnus)The Server Buffer")
1758 (gnus-browse-mode "(gnus)Browse Foreign Server")
1759 (gnus-tree-mode "(gnus)Tree Display")
1761 "Alist of major modes and related Info nodes.")
1763 (defvar gnus-group-buffer "*Group*")
1764 (defvar gnus-summary-buffer "*Summary*")
1765 (defvar gnus-article-buffer "*Article*")
1766 (defvar gnus-server-buffer "*Server*")
1768 (defvar gnus-work-buffer " *gnus work*")
1770 (defvar gnus-original-article-buffer " *Original Article*")
1771 (defvar gnus-original-article nil)
1773 (defvar gnus-buffer-list nil
1774 "Gnus buffers that should be killed on exit.")
1776 (defvar gnus-slave nil
1777 "Whether this Gnus is a slave or not.")
1779 (defvar gnus-variable-list
1780 '(gnus-newsrc-options gnus-newsrc-options-n
1781 gnus-newsrc-last-checked-date
1782 gnus-newsrc-alist gnus-server-alist
1783 gnus-killed-list gnus-zombie-list
1784 gnus-topic-topology gnus-topic-alist
1785 gnus-format-specs)
1786 "Gnus variables saved in the quick startup file.")
1788 (defvar gnus-newsrc-options nil
1789 "Options line in the .newsrc file.")
1791 (defvar gnus-newsrc-options-n nil
1792 "List of regexps representing groups to be subscribed/ignored unconditionally.")
1794 (defvar gnus-newsrc-last-checked-date nil
1795 "Date Gnus last asked server for new newsgroups.")
1797 (defvar gnus-topic-topology nil
1798 "The complete topic hierarchy.")
1800 (defvar gnus-topic-alist nil
1801 "The complete topic-group alist.")
1803 (defvar gnus-newsrc-alist nil
1804 "Assoc list of read articles.
1805 gnus-newsrc-hashtb should be kept so that both hold the same information.")
1807 (defvar gnus-newsrc-hashtb nil
1808 "Hashtable of gnus-newsrc-alist.")
1810 (defvar gnus-killed-list nil
1811 "List of killed newsgroups.")
1813 (defvar gnus-killed-hashtb nil
1814 "Hash table equivalent of gnus-killed-list.")
1816 (defvar gnus-zombie-list nil
1817 "List of almost dead newsgroups.")
1819 (defvar gnus-description-hashtb nil
1820 "Descriptions of newsgroups.")
1822 (defvar gnus-list-of-killed-groups nil
1823 "List of newsgroups that have recently been killed by the user.")
1825 (defvar gnus-active-hashtb nil
1826 "Hashtable of active articles.")
1828 (defvar gnus-moderated-list nil
1829 "List of moderated newsgroups.")
1831 (defvar gnus-group-marked nil)
1833 (defvar gnus-current-startup-file nil
1834 "Startup file for the current host.")
1836 (defvar gnus-last-search-regexp nil
1837 "Default regexp for article search command.")
1839 (defvar gnus-last-shell-command nil
1840 "Default shell command on article.")
1842 (defvar gnus-current-select-method nil
1843 "The current method for selecting a newsgroup.")
1845 (defvar gnus-group-list-mode nil)
1847 (defvar gnus-article-internal-prepare-hook nil)
1849 (defvar gnus-newsgroup-name nil)
1850 (defvar gnus-newsgroup-begin nil)
1851 (defvar gnus-newsgroup-end nil)
1852 (defvar gnus-newsgroup-last-rmail nil)
1853 (defvar gnus-newsgroup-last-mail nil)
1854 (defvar gnus-newsgroup-last-folder nil)
1855 (defvar gnus-newsgroup-last-file nil)
1856 (defvar gnus-newsgroup-auto-expire nil)
1857 (defvar gnus-newsgroup-active nil)
1859 (defvar gnus-newsgroup-data nil)
1860 (defvar gnus-newsgroup-data-reverse nil)
1861 (defvar gnus-newsgroup-limit nil)
1862 (defvar gnus-newsgroup-limits nil)
1864 (defvar gnus-newsgroup-unreads nil
1865 "List of unread articles in the current newsgroup.")
1867 (defvar gnus-newsgroup-unselected nil
1868 "List of unselected unread articles in the current newsgroup.")
1870 (defvar gnus-newsgroup-reads nil
1871 "Alist of read articles and article marks in the current newsgroup.")
1873 (defvar gnus-newsgroup-expunged-tally nil)
1875 (defvar gnus-newsgroup-marked nil
1876 "List of ticked articles in the current newsgroup (a subset of unread art).")
1878 (defvar gnus-newsgroup-killed nil
1879 "List of ranges of articles that have been through the scoring process.")
1881 (defvar gnus-newsgroup-cached nil
1882 "List of articles that come from the article cache.")
1884 (defvar gnus-newsgroup-saved nil
1885 "List of articles that have been saved.")
1887 (defvar gnus-newsgroup-kill-headers nil)
1889 (defvar gnus-newsgroup-replied nil
1890 "List of articles that have been replied to in the current newsgroup.")
1892 (defvar gnus-newsgroup-expirable nil
1893 "List of articles in the current newsgroup that can be expired.")
1895 (defvar gnus-newsgroup-processable nil
1896 "List of articles in the current newsgroup that can be processed.")
1898 (defvar gnus-newsgroup-bookmarks nil
1899 "List of articles in the current newsgroup that have bookmarks.")
1901 (defvar gnus-newsgroup-dormant nil
1902 "List of dormant articles in the current newsgroup.")
1904 (defvar gnus-newsgroup-scored nil
1905 "List of scored articles in the current newsgroup.")
1907 (defvar gnus-newsgroup-headers nil
1908 "List of article headers in the current newsgroup.")
1910 (defvar gnus-newsgroup-threads nil)
1912 (defvar gnus-newsgroup-prepared nil
1913 "Whether the current group has been prepared properly.")
1915 (defvar gnus-newsgroup-ancient nil
1916 "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
1918 (defvar gnus-newsgroup-sparse nil)
1920 (defvar gnus-current-article nil)
1921 (defvar gnus-article-current nil)
1922 (defvar gnus-current-headers nil)
1923 (defvar gnus-have-all-headers nil)
1924 (defvar gnus-last-article nil)
1925 (defvar gnus-newsgroup-history nil)
1926 (defvar gnus-current-kill-article nil)
1928 ;; Save window configuration.
1929 (defvar gnus-prev-winconf nil)
1931 (defvar gnus-summary-mark-positions nil)
1932 (defvar gnus-group-mark-positions nil)
1934 (defvar gnus-reffed-article-number nil)
1936 ;;; Let the byte-compiler know that we know about this variable.
1937 (defvar rmail-default-rmail-file)
1939 (defvar gnus-cache-removable-articles nil)
1941 (defvar gnus-dead-summary nil)
1943 (defconst gnus-summary-local-variables
1944 '(gnus-newsgroup-name
1945 gnus-newsgroup-begin gnus-newsgroup-end
1946 gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
1947 gnus-newsgroup-last-folder gnus-newsgroup-last-file
1948 gnus-newsgroup-auto-expire gnus-newsgroup-unreads
1949 gnus-newsgroup-unselected gnus-newsgroup-marked
1950 gnus-newsgroup-reads gnus-newsgroup-saved
1951 gnus-newsgroup-replied gnus-newsgroup-expirable
1952 gnus-newsgroup-processable gnus-newsgroup-killed
1953 gnus-newsgroup-bookmarks gnus-newsgroup-dormant
1954 gnus-newsgroup-headers gnus-newsgroup-threads
1955 gnus-newsgroup-prepared gnus-summary-highlight-line-function
1956 gnus-current-article gnus-current-headers gnus-have-all-headers
1957 gnus-last-article gnus-article-internal-prepare-hook
1958 gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
1959 gnus-newsgroup-scored gnus-newsgroup-kill-headers
1960 gnus-newsgroup-async gnus-thread-expunge-below
1961 gnus-score-alist gnus-current-score-file gnus-summary-expunge-below
1962 (gnus-summary-mark-below . global)
1963 gnus-newsgroup-active gnus-scores-exclude-files
1964 gnus-newsgroup-history gnus-newsgroup-ancient
1965 gnus-newsgroup-sparse
1966 (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
1967 gnus-newsgroup-adaptive-score-file
1968 (gnus-newsgroup-expunged-tally . 0)
1969 gnus-cache-removable-articles gnus-newsgroup-cached
1970 gnus-newsgroup-data gnus-newsgroup-data-reverse
1971 gnus-newsgroup-limit gnus-newsgroup-limits)
1972 "Variables that are buffer-local to the summary buffers.")
1974 (defconst gnus-bug-message
1975 "Sending a bug report to the Gnus Towers.
1976 ========================================
1978 The buffer below is a mail buffer. When you press `C-c C-c', it will
1979 be sent to the Gnus Bug Exterminators.
1981 At the bottom of the buffer you'll see lots of variable settings.
1982 Please do not delete those. They will tell the Bug People what your
1983 environment is, so that it will be easier to locate the bugs.
1985 If you have found a bug that makes Emacs go \"beep\", set
1986 debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
1987 and include the backtrace in your bug report.
1989 Please describe the bug in annoying, painstaking detail.
1991 Thank you for your help in stamping out bugs.
1994 ;;; End of variables.
1996 ;; Define some autoload functions Gnus might use.
1997 (eval-and-compile
1999 ;; This little mapcar goes through the list below and marks the
2000 ;; symbols in question as autoloaded functions.
2001 (mapcar
2002 (lambda (package)
2003 (let ((interactive (nth 1 (memq ':interactive package))))
2004 (mapcar
2005 (lambda (function)
2006 (let (keymap)
2007 (when (consp function)
2008 (setq keymap (car (memq 'keymap function)))
2009 (setq function (car function)))
2010 (autoload function (car package) nil interactive keymap)))
2011 (if (eq (nth 1 package) ':interactive)
2012 (cdddr package)
2013 (cdr package)))))
2014 '(("metamail" metamail-buffer)
2015 ("info" Info-goto-node)
2016 ("hexl" hexl-hex-string-to-integer)
2017 ("pp" pp pp-to-string pp-eval-expression)
2018 ("mail-extr" mail-extract-address-components)
2019 ("nnmail" nnmail-split-fancy nnmail-article-group)
2020 ("nnvirtual" nnvirtual-catchup-group)
2021 ("timezone" timezone-make-date-arpa-standard timezone-fix-time
2022 timezone-make-sortable-date timezone-make-time-string)
2023 ("rmailout" rmail-output)
2024 ("rmail" rmail-insert-rmail-file-header rmail-count-new-messages
2025 rmail-show-message)
2026 ("gnus-soup" :interactive t
2027 gnus-group-brew-soup gnus-brew-soup gnus-soup-add-article
2028 gnus-soup-send-replies gnus-soup-save-areas gnus-soup-pack-packet)
2029 ("nnsoup" nnsoup-pack-replies)
2030 ("score-mode" :interactive t gnus-score-mode)
2031 ("gnus-mh" gnus-mh-mail-setup gnus-summary-save-article-folder
2032 gnus-Folder-save-name gnus-folder-save-name)
2033 ("gnus-mh" :interactive t gnus-summary-save-in-folder)
2034 ("gnus-vis" gnus-group-make-menu-bar gnus-summary-make-menu-bar
2035 gnus-server-make-menu-bar gnus-article-make-menu-bar
2036 gnus-browse-make-menu-bar gnus-highlight-selected-summary
2037 gnus-summary-highlight-line gnus-carpal-setup-buffer
2038 gnus-group-highlight-line
2039 gnus-article-add-button gnus-insert-next-page-button
2040 gnus-insert-prev-page-button gnus-visual-turn-off-edit-menu)
2041 ("gnus-vis" :interactive t
2042 gnus-article-push-button gnus-article-press-button
2043 gnus-article-highlight gnus-article-highlight-some
2044 gnus-article-highlight-headers gnus-article-highlight-signature
2045 gnus-article-add-buttons gnus-article-add-buttons-to-head
2046 gnus-article-next-button gnus-article-prev-button)
2047 ("gnus-demon" gnus-demon-add-nocem gnus-demon-add-scanmail
2048 gnus-demon-add-disconnection gnus-demon-add-handler
2049 gnus-demon-remove-handler)
2050 ("gnus-demon" :interactive t
2051 gnus-demon-init gnus-demon-cancel)
2052 ("gnus-salt" gnus-highlight-selected-tree gnus-possibly-generate-tree
2053 gnus-tree-open gnus-tree-close)
2054 ("gnus-nocem" gnus-nocem-scan-groups gnus-nocem-close
2055 gnus-nocem-unwanted-article-p)
2056 ("gnus-srvr" gnus-enter-server-buffer gnus-server-set-info)
2057 ("gnus-srvr" gnus-browse-foreign-server)
2058 ("gnus-cite" :interactive t
2059 gnus-article-highlight-citation gnus-article-hide-citation-maybe
2060 gnus-article-hide-citation gnus-article-fill-cited-article
2061 gnus-article-hide-citation-in-followups)
2062 ("gnus-kill" gnus-kill gnus-apply-kill-file-internal
2063 gnus-kill-file-edit-file gnus-kill-file-raise-followups-to-author
2064 gnus-execute gnus-expunge)
2065 ("gnus-cache" gnus-cache-possibly-enter-article gnus-cache-save-buffers
2066 gnus-cache-possibly-remove-articles gnus-cache-request-article
2067 gnus-cache-retrieve-headers gnus-cache-possibly-alter-active
2068 gnus-cache-enter-remove-article gnus-cached-article-p
2069 gnus-cache-open gnus-cache-close gnus-cache-update-article)
2070 ("gnus-cache" :interactive t gnus-jog-cache gnus-cache-enter-article
2071 gnus-cache-remove-article)
2072 ("gnus-score" :interactive t
2073 gnus-summary-increase-score gnus-summary-lower-score
2074 gnus-score-flush-cache gnus-score-close
2075 gnus-score-raise-same-subject-and-select
2076 gnus-score-raise-same-subject gnus-score-default
2077 gnus-score-raise-thread gnus-score-lower-same-subject-and-select
2078 gnus-score-lower-same-subject gnus-score-lower-thread
2079 gnus-possibly-score-headers gnus-summary-raise-score
2080 gnus-summary-set-score gnus-summary-current-score)
2081 ("gnus-score"
2082 (gnus-summary-score-map keymap) gnus-score-save gnus-score-headers
2083 gnus-current-score-file-nondirectory gnus-score-adaptive
2084 gnus-score-find-trace gnus-score-file-name)
2085 ("gnus-edit" :interactive t gnus-score-customize)
2086 ("gnus-topic" :interactive t gnus-topic-mode)
2087 ("gnus-topic" gnus-topic-remove-group)
2088 ("gnus-salt" :interactive t gnus-pick-mode gnus-binary-mode)
2089 ("gnus-uu" (gnus-uu-extract-map keymap) (gnus-uu-mark-map keymap))
2090 ("gnus-uu" :interactive t
2091 gnus-uu-digest-mail-forward gnus-uu-digest-post-forward
2092 gnus-uu-mark-series gnus-uu-mark-region gnus-uu-mark-buffer
2093 gnus-uu-mark-by-regexp gnus-uu-mark-all
2094 gnus-uu-mark-sparse gnus-uu-mark-thread gnus-uu-decode-uu
2095 gnus-uu-decode-uu-and-save gnus-uu-decode-unshar
2096 gnus-uu-decode-unshar-and-save gnus-uu-decode-save
2097 gnus-uu-decode-binhex gnus-uu-decode-uu-view
2098 gnus-uu-decode-uu-and-save-view gnus-uu-decode-unshar-view
2099 gnus-uu-decode-unshar-and-save-view gnus-uu-decode-save-view
2100 gnus-uu-decode-binhex-view)
2101 ("gnus-msg" (gnus-summary-send-map keymap)
2102 gnus-mail-yank-original gnus-mail-send-and-exit
2103 gnus-article-mail gnus-new-mail gnus-mail-reply)
2104 ("gnus-msg" :interactive t
2105 gnus-group-post-news gnus-group-mail gnus-summary-post-news
2106 gnus-summary-followup gnus-summary-followup-with-original
2107 gnus-summary-cancel-article gnus-summary-supersede-article
2108 gnus-post-news gnus-inews-news
2109 gnus-summary-reply gnus-summary-reply-with-original
2110 gnus-summary-mail-forward gnus-summary-mail-other-window
2111 gnus-bug)
2112 ("gnus-picon" :interactive t gnus-article-display-picons
2113 gnus-group-display-picons gnus-picons-article-display-x-face
2114 gnus-picons-display-x-face)
2115 ("gnus-gl" bbb-login bbb-logout bbb-grouplens-group-p
2116 gnus-grouplens-mode)
2117 ("smiley" :interactive t gnus-smiley-display)
2118 ("gnus-vm" gnus-vm-mail-setup)
2119 ("gnus-vm" :interactive t gnus-summary-save-in-vm
2120 gnus-summary-save-article-vm))))
2124 ;; Fix by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
2125 ;; If you want the cursor to go somewhere else, set these two
2126 ;; functions in some startup hook to whatever you want.
2127 (defalias 'gnus-summary-position-point 'gnus-goto-colon)
2128 (defalias 'gnus-group-position-point 'gnus-goto-colon)
2130 ;;; Various macros and substs.
2132 (defun gnus-header-from (header)
2133 (mail-header-from header))
2135 (defmacro gnus-eval-in-buffer-window (buffer &rest forms)
2136 "Pop to BUFFER, evaluate FORMS, and then return to the original window."
2137 (let ((tempvar (make-symbol "GnusStartBufferWindow"))
2138 (w (make-symbol "w"))
2139 (buf (make-symbol "buf")))
2140 `(let* ((,tempvar (selected-window))
2141 (,buf ,buffer)
2142 (,w (get-buffer-window ,buf 'visible)))
2143 (unwind-protect
2144 (progn
2145 (if ,w
2146 (select-window ,w)
2147 (pop-to-buffer ,buf))
2148 ,@forms)
2149 (select-window ,tempvar)))))
2151 (put 'gnus-eval-in-buffer-window 'lisp-indent-function 1)
2152 (put 'gnus-eval-in-buffer-window 'lisp-indent-hook 1)
2153 (put 'gnus-eval-in-buffer-window 'edebug-form-spec '(form body))
2155 (defmacro gnus-gethash (string hashtable)
2156 "Get hash value of STRING in HASHTABLE."
2157 `(symbol-value (intern-soft ,string ,hashtable)))
2159 (defmacro gnus-sethash (string value hashtable)
2160 "Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
2161 `(set (intern ,string ,hashtable) ,value))
2163 (defmacro gnus-intern-safe (string hashtable)
2164 "Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
2165 `(let ((symbol (intern ,string ,hashtable)))
2166 (or (boundp symbol)
2167 (set symbol nil))
2168 symbol))
2170 (defmacro gnus-group-unread (group)
2171 "Get the currently computed number of unread articles in GROUP."
2172 `(car (gnus-gethash ,group gnus-newsrc-hashtb)))
2174 (defmacro gnus-group-entry (group)
2175 "Get the newsrc entry for GROUP."
2176 `(gnus-gethash ,group gnus-newsrc-hashtb))
2178 (defmacro gnus-active (group)
2179 "Get active info on GROUP."
2180 `(gnus-gethash ,group gnus-active-hashtb))
2182 (defmacro gnus-set-active (group active)
2183 "Set GROUP's active info."
2184 `(gnus-sethash ,group ,active gnus-active-hashtb))
2186 ;; modified by MORIOKA Tomohiko <morioka@jaist.ac.jp>
2187 ;; function `substring' might cut on a middle of multi-octet
2188 ;; character.
2189 (defun gnus-truncate-string (str width)
2190 (substring str 0 width))
2192 ;; Added by Geoffrey T. Dairiki <dairiki@u.washington.edu>. A safe way
2193 ;; to limit the length of a string. This function is necessary since
2194 ;; `(substr "abc" 0 30)' pukes with "Args out of range".
2195 (defsubst gnus-limit-string (str width)
2196 (if (> (length str) width)
2197 (substring str 0 width)
2198 str))
2200 (defsubst gnus-simplify-subject-re (subject)
2201 "Remove \"Re:\" from subject lines."
2202 (if (string-match "^[Rr][Ee]: *" subject)
2203 (substring subject (match-end 0))
2204 subject))
2206 (defsubst gnus-functionp (form)
2207 "Return non-nil if FORM is funcallable."
2208 (or (and (symbolp form) (fboundp form))
2209 (and (listp form) (eq (car form) 'lambda))))
2211 (defsubst gnus-goto-char (point)
2212 (and point (goto-char point)))
2214 (defmacro gnus-buffer-exists-p (buffer)
2215 `(let ((buffer ,buffer))
2216 (and buffer
2217 (funcall (if (stringp buffer) 'get-buffer 'buffer-name)
2218 buffer))))
2220 (defmacro gnus-kill-buffer (buffer)
2221 `(let ((buf ,buffer))
2222 (if (gnus-buffer-exists-p buf)
2223 (kill-buffer buf))))
2225 (defsubst gnus-point-at-bol ()
2226 "Return point at the beginning of the line."
2227 (let ((p (point)))
2228 (beginning-of-line)
2229 (prog1
2230 (point)
2231 (goto-char p))))
2233 (defsubst gnus-point-at-eol ()
2234 "Return point at the end of the line."
2235 (let ((p (point)))
2236 (end-of-line)
2237 (prog1
2238 (point)
2239 (goto-char p))))
2241 (defun gnus-alive-p ()
2242 "Say whether Gnus is running or not."
2243 (and gnus-group-buffer
2244 (get-buffer gnus-group-buffer)))
2246 (defun gnus-delete-first (elt list)
2247 "Delete by side effect the first occurrence of ELT as a member of LIST."
2248 (if (equal (car list) elt)
2249 (cdr list)
2250 (let ((total list))
2251 (while (and (cdr list)
2252 (not (equal (cadr list) elt)))
2253 (setq list (cdr list)))
2254 (when (cdr list)
2255 (setcdr list (cddr list)))
2256 total)))
2258 ;; Delete the current line (and the next N lines.);
2259 (defmacro gnus-delete-line (&optional n)
2260 `(delete-region (progn (beginning-of-line) (point))
2261 (progn (forward-line ,(or n 1)) (point))))
2263 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
2264 (defvar gnus-init-inhibit nil)
2265 (defun gnus-read-init-file (&optional inhibit-next)
2266 (if gnus-init-inhibit
2267 (setq gnus-init-inhibit nil)
2268 (setq gnus-init-inhibit inhibit-next)
2269 (and gnus-init-file
2270 ;; Don't load .gnus if -q option was used.
2271 init-file-user
2272 (or (and (file-exists-p gnus-init-file)
2273 ;; Don't try to load a directory.
2274 (not (file-directory-p gnus-init-file)))
2275 (file-exists-p (concat gnus-init-file ".el"))
2276 (file-exists-p (concat gnus-init-file ".elc")))
2277 (condition-case var
2278 (load gnus-init-file nil t)
2279 (error
2280 (error "Error in %s: %s" gnus-init-file var))))))
2282 ;; Info access macros.
2284 (defmacro gnus-info-group (info)
2285 `(nth 0 ,info))
2286 (defmacro gnus-info-rank (info)
2287 `(nth 1 ,info))
2288 (defmacro gnus-info-read (info)
2289 `(nth 2 ,info))
2290 (defmacro gnus-info-marks (info)
2291 `(nth 3 ,info))
2292 (defmacro gnus-info-method (info)
2293 `(nth 4 ,info))
2294 (defmacro gnus-info-params (info)
2295 `(nth 5 ,info))
2297 (defmacro gnus-info-level (info)
2298 `(let ((rank (gnus-info-rank ,info)))
2299 (if (consp rank)
2300 (car rank)
2301 rank)))
2302 (defmacro gnus-info-score (info)
2303 `(let ((rank (gnus-info-rank ,info)))
2304 (or (and (consp rank) (cdr rank)) 0)))
2306 (defmacro gnus-info-set-group (info group)
2307 `(setcar ,info ,group))
2308 (defmacro gnus-info-set-rank (info rank)
2309 `(setcar (nthcdr 1 ,info) ,rank))
2310 (defmacro gnus-info-set-read (info read)
2311 `(setcar (nthcdr 2 ,info) ,read))
2312 (defmacro gnus-info-set-marks (info marks)
2313 `(setcar (nthcdr 3 ,info) ,marks))
2314 (defmacro gnus-info-set-method (info method)
2315 `(setcar (nthcdr 4 ,info) ,method))
2316 (defmacro gnus-info-set-params (info params)
2317 `(setcar (nthcdr 5 ,info) ,params))
2319 (defmacro gnus-info-set-level (info level)
2320 `(let ((rank (cdr ,info)))
2321 (if (consp (car rank))
2322 (setcar (car rank) ,level)
2323 (setcar rank ,level))))
2324 (defmacro gnus-info-set-score (info score)
2325 `(let ((rank (cdr ,info)))
2326 (if (consp (car rank))
2327 (setcdr (car rank) ,score)
2328 (setcar rank (cons (car rank) ,score)))))
2330 (defmacro gnus-get-info (group)
2331 `(nth 2 (gnus-gethash ,group gnus-newsrc-hashtb)))
2333 (defun gnus-byte-code (func)
2334 "Return a form that can be `eval'ed based on FUNC."
2335 (let ((fval (symbol-function func)))
2336 (if (byte-code-function-p fval)
2337 (let ((flist (append fval nil)))
2338 (setcar flist 'byte-code)
2339 flist)
2340 (cons 'progn (cddr fval)))))
2342 ;; Find out whether the gnus-visual TYPE is wanted.
2343 (defun gnus-visual-p (&optional type class)
2344 (and gnus-visual ; Has to be non-nil, at least.
2345 (if (not type) ; We don't care about type.
2346 gnus-visual
2347 (if (listp gnus-visual) ; It's a list, so we check it.
2348 (or (memq type gnus-visual)
2349 (memq class gnus-visual))
2350 t))))
2352 ;;; Load the compatability functions.
2354 (require 'gnus-cus)
2355 (require 'gnus-ems)
2359 ;;; Shutdown
2362 (defvar gnus-shutdown-alist nil)
2364 (defun gnus-add-shutdown (function &rest symbols)
2365 "Run FUNCTION whenever one of SYMBOLS is shut down."
2366 (push (cons function symbols) gnus-shutdown-alist))
2368 (defun gnus-shutdown (symbol)
2369 "Shut down everything that waits for SYMBOL."
2370 (let ((alist gnus-shutdown-alist)
2371 entry)
2372 (while (setq entry (pop alist))
2373 (when (memq symbol (cdr entry))
2374 (funcall (car entry))))))
2378 ;; Format specs. The chunks below are the machine-generated forms
2379 ;; that are to be evaled as the result of the default format strings.
2380 ;; We write them in here to get them byte-compiled. That way the
2381 ;; default actions will be quite fast, while still retaining the full
2382 ;; flexibility of the user-defined format specs.
2384 ;; First we have lots of dummy defvars to let the compiler know these
2385 ;; are really dynamic variables.
2387 (defvar gnus-tmp-unread)
2388 (defvar gnus-tmp-replied)
2389 (defvar gnus-tmp-score-char)
2390 (defvar gnus-tmp-indentation)
2391 (defvar gnus-tmp-opening-bracket)
2392 (defvar gnus-tmp-lines)
2393 (defvar gnus-tmp-name)
2394 (defvar gnus-tmp-closing-bracket)
2395 (defvar gnus-tmp-subject-or-nil)
2396 (defvar gnus-tmp-subject)
2397 (defvar gnus-tmp-marked)
2398 (defvar gnus-tmp-marked-mark)
2399 (defvar gnus-tmp-subscribed)
2400 (defvar gnus-tmp-process-marked)
2401 (defvar gnus-tmp-number-of-unread)
2402 (defvar gnus-tmp-group-name)
2403 (defvar gnus-tmp-group)
2404 (defvar gnus-tmp-article-number)
2405 (defvar gnus-tmp-unread-and-unselected)
2406 (defvar gnus-tmp-news-method)
2407 (defvar gnus-tmp-news-server)
2408 (defvar gnus-tmp-article-number)
2409 (defvar gnus-mouse-face)
2410 (defvar gnus-mouse-face-prop)
2412 (defun gnus-summary-line-format-spec ()
2413 (insert gnus-tmp-unread gnus-tmp-replied
2414 gnus-tmp-score-char gnus-tmp-indentation)
2415 (gnus-put-text-property
2416 (point)
2417 (progn
2418 (insert
2419 gnus-tmp-opening-bracket
2420 (format "%4d: %-20s"
2421 gnus-tmp-lines
2422 (if (> (length gnus-tmp-name) 20)
2423 (substring gnus-tmp-name 0 20)
2424 gnus-tmp-name))
2425 gnus-tmp-closing-bracket)
2426 (point))
2427 gnus-mouse-face-prop gnus-mouse-face)
2428 (insert " " gnus-tmp-subject-or-nil "\n"))
2430 (defvar gnus-summary-line-format-spec
2431 (gnus-byte-code 'gnus-summary-line-format-spec))
2433 (defun gnus-summary-dummy-line-format-spec ()
2434 (insert "* ")
2435 (gnus-put-text-property
2436 (point)
2437 (progn
2438 (insert ": :")
2439 (point))
2440 gnus-mouse-face-prop gnus-mouse-face)
2441 (insert " " gnus-tmp-subject "\n"))
2443 (defvar gnus-summary-dummy-line-format-spec
2444 (gnus-byte-code 'gnus-summary-dummy-line-format-spec))
2446 (defun gnus-group-line-format-spec ()
2447 (insert gnus-tmp-marked-mark gnus-tmp-subscribed
2448 gnus-tmp-process-marked
2449 gnus-group-indentation
2450 (format "%5s: " gnus-tmp-number-of-unread))
2451 (gnus-put-text-property
2452 (point)
2453 (progn
2454 (insert gnus-tmp-group "\n")
2455 (1- (point)))
2456 gnus-mouse-face-prop gnus-mouse-face))
2457 (defvar gnus-group-line-format-spec
2458 (gnus-byte-code 'gnus-group-line-format-spec))
2460 (defvar gnus-format-specs
2461 `((version . ,emacs-version)
2462 (group ,gnus-group-line-format ,gnus-group-line-format-spec)
2463 (summary-dummy ,gnus-summary-dummy-line-format
2464 ,gnus-summary-dummy-line-format-spec)
2465 (summary ,gnus-summary-line-format ,gnus-summary-line-format-spec)))
2467 (defvar gnus-article-mode-line-format-spec nil)
2468 (defvar gnus-summary-mode-line-format-spec nil)
2469 (defvar gnus-group-mode-line-format-spec nil)
2471 ;;; Phew. All that gruft is over, fortunately.
2475 ;;; Gnus Utility Functions
2478 (defun gnus-extract-address-components (from)
2479 (let (name address)
2480 ;; First find the address - the thing with the @ in it. This may
2481 ;; not be accurate in mail addresses, but does the trick most of
2482 ;; the time in news messages.
2483 (if (string-match "\\b[^@ \t<>]+[!@][^@ \t<>]+\\b" from)
2484 (setq address (substring from (match-beginning 0) (match-end 0))))
2485 ;; Then we check whether the "name <address>" format is used.
2486 (and address
2487 ;; Fix by MORIOKA Tomohiko <morioka@jaist.ac.jp>
2488 ;; Linear white space is not required.
2489 (string-match (concat "[ \t]*<" (regexp-quote address) ">") from)
2490 (and (setq name (substring from 0 (match-beginning 0)))
2491 ;; Strip any quotes from the name.
2492 (string-match "\".*\"" name)
2493 (setq name (substring name 1 (1- (match-end 0))))))
2494 ;; If not, then "address (name)" is used.
2495 (or name
2496 (and (string-match "(.+)" from)
2497 (setq name (substring from (1+ (match-beginning 0))
2498 (1- (match-end 0)))))
2499 (and (string-match "()" from)
2500 (setq name address))
2501 ;; Fix by MORIOKA Tomohiko <morioka@jaist.ac.jp>.
2502 ;; XOVER might not support folded From headers.
2503 (and (string-match "(.*" from)
2504 (setq name (substring from (1+ (match-beginning 0))
2505 (match-end 0)))))
2506 ;; Fix by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
2507 (list (or name from) (or address from))))
2509 (defun gnus-fetch-field (field)
2510 "Return the value of the header FIELD of current article."
2511 (save-excursion
2512 (save-restriction
2513 (let ((case-fold-search t)
2514 (inhibit-point-motion-hooks t))
2515 (nnheader-narrow-to-headers)
2516 (message-fetch-field field)))))
2518 (defun gnus-goto-colon ()
2519 (beginning-of-line)
2520 (search-forward ":" (gnus-point-at-eol) t))
2522 ;;;###autoload
2523 (defun gnus-update-format (var)
2524 "Update the format specification near point."
2525 (interactive
2526 (list
2527 (save-excursion
2528 (eval-defun nil)
2529 ;; Find the end of the current word.
2530 (re-search-forward "[ \t\n]" nil t)
2531 ;; Search backward.
2532 (when (re-search-backward "\\(gnus-[-a-z]+-line-format\\)" nil t)
2533 (match-string 1)))))
2534 (let* ((type (intern (progn (string-match "gnus-\\([-a-z]+\\)-line" var)
2535 (match-string 1 var))))
2536 (entry (assq type gnus-format-specs))
2537 value spec)
2538 (when entry
2539 (setq gnus-format-specs (delq entry gnus-format-specs)))
2540 (set
2541 (intern (format "%s-spec" var))
2542 (gnus-parse-format (setq value (symbol-value (intern var)))
2543 (symbol-value (intern (format "%s-alist" var)))
2544 (not (string-match "mode" var))))
2545 (setq spec (symbol-value (intern (format "%s-spec" var))))
2546 (push (list type value spec) gnus-format-specs)
2548 (pop-to-buffer "*Gnus Format*")
2549 (erase-buffer)
2550 (lisp-interaction-mode)
2551 (insert (pp-to-string spec))))
2553 (defun gnus-update-format-specifications (&optional force)
2554 "Update all (necessary) format specifications."
2555 ;; Make the indentation array.
2556 (gnus-make-thread-indent-array)
2558 ;; See whether all the stored info needs to be flushed.
2559 (when (or force
2560 (not (equal emacs-version
2561 (cdr (assq 'version gnus-format-specs)))))
2562 (setq gnus-format-specs nil))
2564 ;; Go through all the formats and see whether they need updating.
2565 (let ((types '(summary summary-dummy group
2566 summary-mode group-mode article-mode))
2567 new-format entry type val)
2568 (while (setq type (pop types))
2569 ;; Jump to the proper buffer to find out the value of
2570 ;; the variable, if possible. (It may be buffer-local.)
2571 (save-excursion
2572 (let ((buffer (intern (format "gnus-%s-buffer" type)))
2573 val)
2574 (when (and (boundp buffer)
2575 (setq val (symbol-value buffer))
2576 (get-buffer val)
2577 (buffer-name (get-buffer val)))
2578 (set-buffer (get-buffer val)))
2579 (setq new-format (symbol-value
2580 (intern (format "gnus-%s-line-format" type))))))
2581 (setq entry (cdr (assq type gnus-format-specs)))
2582 (if (and entry
2583 (equal (car entry) new-format))
2584 ;; Use the old format.
2585 (set (intern (format "gnus-%s-line-format-spec" type))
2586 (cadr entry))
2587 ;; This is a new format.
2588 (setq val
2589 (if (not (stringp new-format))
2590 ;; This is a function call or something.
2591 new-format
2592 ;; This is a "real" format.
2593 (gnus-parse-format
2594 new-format
2595 (symbol-value
2596 (intern (format "gnus-%s-line-format-alist"
2597 (if (eq type 'article-mode)
2598 'summary-mode type))))
2599 (not (string-match "mode$" (symbol-name type))))))
2600 ;; Enter the new format spec into the list.
2601 (if entry
2602 (progn
2603 (setcar (cdr entry) val)
2604 (setcar entry new-format))
2605 (push (list type new-format val) gnus-format-specs))
2606 (set (intern (format "gnus-%s-line-format-spec" type)) val))))
2608 (unless (assq 'version gnus-format-specs)
2609 (push (cons 'version emacs-version) gnus-format-specs))
2611 (gnus-update-group-mark-positions)
2612 (gnus-update-summary-mark-positions))
2614 (defun gnus-update-summary-mark-positions ()
2615 "Compute where the summary marks are to go."
2616 (save-excursion
2617 (when (and gnus-summary-buffer
2618 (get-buffer gnus-summary-buffer)
2619 (buffer-name (get-buffer gnus-summary-buffer)))
2620 (set-buffer gnus-summary-buffer))
2621 (let ((gnus-replied-mark 129)
2622 (gnus-score-below-mark 130)
2623 (gnus-score-over-mark 130)
2624 (thread nil)
2625 (gnus-visual nil)
2626 (spec gnus-summary-line-format-spec)
2627 pos)
2628 (save-excursion
2629 (gnus-set-work-buffer)
2630 (let ((gnus-summary-line-format-spec spec))
2631 (gnus-summary-insert-line
2632 [0 "" "" "" "" "" 0 0 ""] 0 nil 128 t nil "" nil 1)
2633 (goto-char (point-min))
2634 (setq pos (list (cons 'unread (and (search-forward "\200" nil t)
2635 (- (point) 2)))))
2636 (goto-char (point-min))
2637 (push (cons 'replied (and (search-forward "\201" nil t)
2638 (- (point) 2)))
2639 pos)
2640 (goto-char (point-min))
2641 (push (cons 'score (and (search-forward "\202" nil t) (- (point) 2)))
2642 pos)))
2643 (setq gnus-summary-mark-positions pos))))
2645 (defun gnus-update-group-mark-positions ()
2646 (save-excursion
2647 (let ((gnus-process-mark 128)
2648 (gnus-group-marked '("dummy.group"))
2649 (gnus-active-hashtb (make-vector 10 0)))
2650 (gnus-set-active "dummy.group" '(0 . 0))
2651 (gnus-set-work-buffer)
2652 (gnus-group-insert-group-line "dummy.group" 0 nil 0 nil)
2653 (goto-char (point-min))
2654 (setq gnus-group-mark-positions
2655 (list (cons 'process (and (search-forward "\200" nil t)
2656 (- (point) 2))))))))
2658 (defvar gnus-mouse-face-0 'highlight)
2659 (defvar gnus-mouse-face-1 'highlight)
2660 (defvar gnus-mouse-face-2 'highlight)
2661 (defvar gnus-mouse-face-3 'highlight)
2662 (defvar gnus-mouse-face-4 'highlight)
2664 (defun gnus-mouse-face-function (form type)
2665 `(gnus-put-text-property
2666 (point) (progn ,@form (point))
2667 gnus-mouse-face-prop
2668 ,(if (equal type 0)
2669 'gnus-mouse-face
2670 `(quote ,(symbol-value (intern (format "gnus-mouse-face-%d" type)))))))
2672 (defvar gnus-face-0 'bold)
2673 (defvar gnus-face-1 'italic)
2674 (defvar gnus-face-2 'bold-italic)
2675 (defvar gnus-face-3 'bold)
2676 (defvar gnus-face-4 'bold)
2678 (defun gnus-face-face-function (form type)
2679 `(gnus-put-text-property
2680 (point) (progn ,@form (point))
2681 'face ',(symbol-value (intern (format "gnus-face-%d" type)))))
2683 (defun gnus-max-width-function (el max-width)
2684 (or (numberp max-width) (signal 'wrong-type-argument '(numberp max-width)))
2685 (if (symbolp el)
2686 `(if (> (length ,el) ,max-width)
2687 (substring ,el 0 ,max-width)
2688 ,el)
2689 `(let ((val (eval ,el)))
2690 (if (numberp val)
2691 (setq val (int-to-string val)))
2692 (if (> (length val) ,max-width)
2693 (substring val 0 ,max-width)
2694 val))))
2696 (defun gnus-parse-format (format spec-alist &optional insert)
2697 ;; This function parses the FORMAT string with the help of the
2698 ;; SPEC-ALIST and returns a list that can be eval'ed to return the
2699 ;; string. If the FORMAT string contains the specifiers %( and %)
2700 ;; the text between them will have the mouse-face text property.
2701 (if (string-match
2702 "\\`\\(.*\\)%[0-9]?[{(]\\(.*\\)%[0-9]?[})]\\(.*\n?\\)\\'"
2703 format)
2704 (gnus-parse-complex-format format spec-alist)
2705 ;; This is a simple format.
2706 (gnus-parse-simple-format format spec-alist insert)))
2708 (defun gnus-parse-complex-format (format spec-alist)
2709 (save-excursion
2710 (gnus-set-work-buffer)
2711 (insert format)
2712 (goto-char (point-min))
2713 (while (re-search-forward "\"" nil t)
2714 (replace-match "\\\"" nil t))
2715 (goto-char (point-min))
2716 (insert "(\"")
2717 (while (re-search-forward "%\\([0-9]+\\)?\\([{}()]\\)" nil t)
2718 (let ((number (if (match-beginning 1)
2719 (match-string 1) "0"))
2720 (delim (aref (match-string 2) 0)))
2721 (if (or (= delim ?\() (= delim ?\{))
2722 (replace-match (concat "\"(" (if (= delim ?\() "mouse" "face")
2723 " " number " \""))
2724 (replace-match "\")\""))))
2725 (goto-char (point-max))
2726 (insert "\")")
2727 (goto-char (point-min))
2728 (let ((form (read (current-buffer))))
2729 (cons 'progn (gnus-complex-form-to-spec form spec-alist)))))
2731 (defun gnus-complex-form-to-spec (form spec-alist)
2732 (delq nil
2733 (mapcar
2734 (lambda (sform)
2735 (if (stringp sform)
2736 (gnus-parse-simple-format sform spec-alist t)
2737 (funcall (intern (format "gnus-%s-face-function" (car sform)))
2738 (gnus-complex-form-to-spec (cddr sform) spec-alist)
2739 (nth 1 sform))))
2740 form)))
2742 (defun gnus-parse-simple-format (format spec-alist &optional insert)
2743 ;; This function parses the FORMAT string with the help of the
2744 ;; SPEC-ALIST and returns a list that can be eval'ed to return a
2745 ;; string.
2746 (let ((max-width 0)
2747 spec flist fstring newspec elem beg result dontinsert)
2748 (save-excursion
2749 (gnus-set-work-buffer)
2750 (insert format)
2751 (goto-char (point-min))
2752 (while (re-search-forward "%[-0-9]*\\(,[0-9]+\\)?\\([^0-9]\\)\\(.\\)?"
2753 nil t)
2754 (if (= (setq spec (string-to-char (match-string 2))) ?%)
2755 (setq newspec "%"
2756 beg (1+ (match-beginning 0)))
2757 ;; First check if there are any specs that look anything like
2758 ;; "%12,12A", ie. with a "max width specification". These have
2759 ;; to be treated specially.
2760 (if (setq beg (match-beginning 1))
2761 (setq max-width
2762 (string-to-int
2763 (buffer-substring
2764 (1+ (match-beginning 1)) (match-end 1))))
2765 (setq max-width 0)
2766 (setq beg (match-beginning 2)))
2767 ;; Find the specification from `spec-alist'.
2768 (unless (setq elem (cdr (assq spec spec-alist)))
2769 (setq elem '("*" ?s)))
2770 ;; Treat user defined format specifiers specially.
2771 (when (eq (car elem) 'gnus-tmp-user-defined)
2772 (setq elem
2773 (list
2774 (list (intern (concat "gnus-user-format-function-"
2775 (match-string 3)))
2776 'gnus-tmp-header) ?s))
2777 (delete-region (match-beginning 3) (match-end 3)))
2778 (if (not (zerop max-width))
2779 (let ((el (car elem)))
2780 (cond ((= (cadr elem) ?c)
2781 (setq el (list 'char-to-string el)))
2782 ((= (cadr elem) ?d)
2783 (setq el (list 'int-to-string el))))
2784 (setq flist (cons (gnus-max-width-function el max-width)
2785 flist))
2786 (setq newspec ?s))
2787 (progn
2788 (setq flist (cons (car elem) flist))
2789 (setq newspec (cadr elem)))))
2790 ;; Remove the old specification (and possibly a ",12" string).
2791 (delete-region beg (match-end 2))
2792 ;; Insert the new specification.
2793 (goto-char beg)
2794 (insert newspec))
2795 (setq fstring (buffer-substring 1 (point-max))))
2796 ;; Do some postprocessing to increase efficiency.
2797 (setq
2798 result
2799 (cond
2800 ;; Emptyness.
2801 ((string= fstring "")
2802 nil)
2803 ;; Not a format string.
2804 ((not (string-match "%" fstring))
2805 (list fstring))
2806 ;; A format string with just a single string spec.
2807 ((string= fstring "%s")
2808 (list (car flist)))
2809 ;; A single character.
2810 ((string= fstring "%c")
2811 (list (car flist)))
2812 ;; A single number.
2813 ((string= fstring "%d")
2814 (setq dontinsert)
2815 (if insert
2816 (list `(princ ,(car flist)))
2817 (list `(int-to-string ,(car flist)))))
2818 ;; Just lots of chars and strings.
2819 ((string-match "\\`\\(%[cs]\\)+\\'" fstring)
2820 (nreverse flist))
2821 ;; A single string spec at the beginning of the spec.
2822 ((string-match "\\`%[sc][^%]+\\'" fstring)
2823 (list (car flist) (substring fstring 2)))
2824 ;; A single string spec in the middle of the spec.
2825 ((string-match "\\`\\([^%]+\\)%[sc]\\([^%]+\\)\\'" fstring)
2826 (list (match-string 1 fstring) (car flist) (match-string 2 fstring)))
2827 ;; A single string spec in the end of the spec.
2828 ((string-match "\\`\\([^%]+\\)%[sc]\\'" fstring)
2829 (list (match-string 1 fstring) (car flist)))
2830 ;; A more complex spec.
2832 (list (cons 'format (cons fstring (nreverse flist)))))))
2834 (if insert
2835 (when result
2836 (if dontinsert
2837 result
2838 (cons 'insert result)))
2839 (cond ((stringp result)
2840 result)
2841 ((consp result)
2842 (cons 'concat result))
2843 (t "")))))
2845 (defun gnus-eval-format (format &optional alist props)
2846 "Eval the format variable FORMAT, using ALIST.
2847 If PROPS, insert the result."
2848 (let ((form (gnus-parse-format format alist props)))
2849 (if props
2850 (gnus-add-text-properties (point) (progn (eval form) (point)) props)
2851 (eval form))))
2853 (defun gnus-remove-text-with-property (prop)
2854 "Delete all text in the current buffer with text property PROP."
2855 (save-excursion
2856 (goto-char (point-min))
2857 (while (not (eobp))
2858 (while (get-text-property (point) prop)
2859 (delete-char 1))
2860 (goto-char (next-single-property-change (point) prop nil (point-max))))))
2862 (defun gnus-set-work-buffer ()
2863 (if (get-buffer gnus-work-buffer)
2864 (progn
2865 (set-buffer gnus-work-buffer)
2866 (erase-buffer))
2867 (set-buffer (get-buffer-create gnus-work-buffer))
2868 (kill-all-local-variables)
2869 (buffer-disable-undo (current-buffer))
2870 (gnus-add-current-to-buffer-list)))
2872 ;; Article file names when saving.
2874 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
2875 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2876 If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group/num.
2877 Otherwise, it is like ~/News/news/group/num."
2878 (let ((default
2879 (expand-file-name
2880 (concat (if (gnus-use-long-file-name 'not-save)
2881 (gnus-capitalize-newsgroup newsgroup)
2882 (gnus-newsgroup-directory-form newsgroup))
2883 "/" (int-to-string (mail-header-number headers)))
2884 gnus-article-save-directory)))
2885 (if (and last-file
2886 (string-equal (file-name-directory default)
2887 (file-name-directory last-file))
2888 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2889 default
2890 (or last-file default))))
2892 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
2893 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2894 If variable `gnus-use-long-file-name' is non-nil, it is
2895 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
2896 (let ((default
2897 (expand-file-name
2898 (concat (if (gnus-use-long-file-name 'not-save)
2899 newsgroup
2900 (gnus-newsgroup-directory-form newsgroup))
2901 "/" (int-to-string (mail-header-number headers)))
2902 gnus-article-save-directory)))
2903 (if (and last-file
2904 (string-equal (file-name-directory default)
2905 (file-name-directory last-file))
2906 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2907 default
2908 (or last-file default))))
2910 (defun gnus-Plain-save-name (newsgroup headers &optional last-file)
2911 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2912 If variable `gnus-use-long-file-name' is non-nil, it is
2913 ~/News/News.group. Otherwise, it is like ~/News/news/group/news."
2914 (or last-file
2915 (expand-file-name
2916 (if (gnus-use-long-file-name 'not-save)
2917 (gnus-capitalize-newsgroup newsgroup)
2918 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2919 gnus-article-save-directory)))
2921 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
2922 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2923 If variable `gnus-use-long-file-name' is non-nil, it is
2924 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
2925 (or last-file
2926 (expand-file-name
2927 (if (gnus-use-long-file-name 'not-save)
2928 newsgroup
2929 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
2930 gnus-article-save-directory)))
2932 ;; For subscribing new newsgroup
2934 (defun gnus-subscribe-hierarchical-interactive (groups)
2935 (let ((groups (sort groups 'string<))
2936 prefixes prefix start ans group starts)
2937 (while groups
2938 (setq prefixes (list "^"))
2939 (while (and groups prefixes)
2940 (while (not (string-match (car prefixes) (car groups)))
2941 (setq prefixes (cdr prefixes)))
2942 (setq prefix (car prefixes))
2943 (setq start (1- (length prefix)))
2944 (if (and (string-match "[^\\.]\\." (car groups) start)
2945 (cdr groups)
2946 (setq prefix
2947 (concat "^" (substring (car groups) 0 (match-end 0))))
2948 (string-match prefix (cadr groups)))
2949 (progn
2950 (setq prefixes (cons prefix prefixes))
2951 (message "Descend hierarchy %s? ([y]nsq): "
2952 (substring prefix 1 (1- (length prefix))))
2953 (while (not (memq (setq ans (read-char)) '(?y ?\n ?n ?s ?q)))
2954 (ding)
2955 (message "Descend hierarchy %s? ([y]nsq): "
2956 (substring prefix 1 (1- (length prefix)))))
2957 (cond ((= ans ?n)
2958 (while (and groups
2959 (string-match prefix
2960 (setq group (car groups))))
2961 (setq gnus-killed-list
2962 (cons group gnus-killed-list))
2963 (gnus-sethash group group gnus-killed-hashtb)
2964 (setq groups (cdr groups)))
2965 (setq starts (cdr starts)))
2966 ((= ans ?s)
2967 (while (and groups
2968 (string-match prefix
2969 (setq group (car groups))))
2970 (gnus-sethash group group gnus-killed-hashtb)
2971 (gnus-subscribe-alphabetically (car groups))
2972 (setq groups (cdr groups)))
2973 (setq starts (cdr starts)))
2974 ((= ans ?q)
2975 (while groups
2976 (setq group (car groups))
2977 (setq gnus-killed-list (cons group gnus-killed-list))
2978 (gnus-sethash group group gnus-killed-hashtb)
2979 (setq groups (cdr groups))))
2980 (t nil)))
2981 (message "Subscribe %s? ([n]yq)" (car groups))
2982 (while (not (memq (setq ans (read-char)) '(?y ?\n ?q ?n)))
2983 (ding)
2984 (message "Subscribe %s? ([n]yq)" (car groups)))
2985 (setq group (car groups))
2986 (cond ((= ans ?y)
2987 (gnus-subscribe-alphabetically (car groups))
2988 (gnus-sethash group group gnus-killed-hashtb))
2989 ((= ans ?q)
2990 (while groups
2991 (setq group (car groups))
2992 (setq gnus-killed-list (cons group gnus-killed-list))
2993 (gnus-sethash group group gnus-killed-hashtb)
2994 (setq groups (cdr groups))))
2996 (setq gnus-killed-list (cons group gnus-killed-list))
2997 (gnus-sethash group group gnus-killed-hashtb)))
2998 (setq groups (cdr groups)))))))
3000 (defun gnus-subscribe-randomly (newsgroup)
3001 "Subscribe new NEWSGROUP by making it the first newsgroup."
3002 (gnus-subscribe-newsgroup newsgroup))
3004 (defun gnus-subscribe-alphabetically (newgroup)
3005 "Subscribe new NEWSGROUP and insert it in alphabetical order."
3006 (let ((groups (cdr gnus-newsrc-alist))
3007 before)
3008 (while (and (not before) groups)
3009 (if (string< newgroup (caar groups))
3010 (setq before (caar groups))
3011 (setq groups (cdr groups))))
3012 (gnus-subscribe-newsgroup newgroup before)))
3014 (defun gnus-subscribe-hierarchically (newgroup)
3015 "Subscribe new NEWSGROUP and insert it in hierarchical newsgroup order."
3016 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
3017 (save-excursion
3018 (set-buffer (find-file-noselect gnus-current-startup-file))
3019 (let ((groupkey newgroup)
3020 before)
3021 (while (and (not before) groupkey)
3022 (goto-char (point-min))
3023 (let ((groupkey-re
3024 (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
3025 (while (and (re-search-forward groupkey-re nil t)
3026 (progn
3027 (setq before (match-string 1))
3028 (string< before newgroup)))))
3029 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
3030 (setq groupkey
3031 (if (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
3032 (substring groupkey (match-beginning 1) (match-end 1)))))
3033 (gnus-subscribe-newsgroup newgroup before))
3034 (kill-buffer (current-buffer))))
3036 (defun gnus-subscribe-interactively (group)
3037 "Subscribe the new GROUP interactively.
3038 It is inserted in hierarchical newsgroup order if subscribed. If not,
3039 it is killed."
3040 (if (gnus-y-or-n-p (format "Subscribe new newsgroup: %s " group))
3041 (gnus-subscribe-hierarchically group)
3042 (push group gnus-killed-list)))
3044 (defun gnus-subscribe-zombies (group)
3045 "Make the new GROUP into a zombie group."
3046 (push group gnus-zombie-list))
3048 (defun gnus-subscribe-killed (group)
3049 "Make the new GROUP a killed group."
3050 (push group gnus-killed-list))
3052 (defun gnus-subscribe-newsgroup (newsgroup &optional next)
3053 "Subscribe new NEWSGROUP.
3054 If NEXT is non-nil, it is inserted before NEXT. Otherwise it is made
3055 the first newsgroup."
3056 ;; We subscribe the group by changing its level to `subscribed'.
3057 (gnus-group-change-level
3058 newsgroup gnus-level-default-subscribed
3059 gnus-level-killed (gnus-gethash (or next "dummy.group") gnus-newsrc-hashtb))
3060 (gnus-message 5 "Subscribe newsgroup: %s" newsgroup))
3062 ;; For directories
3064 (defun gnus-newsgroup-directory-form (newsgroup)
3065 "Make hierarchical directory name from NEWSGROUP name."
3066 (let ((newsgroup (gnus-newsgroup-savable-name newsgroup))
3067 (len (length newsgroup))
3068 idx)
3069 ;; If this is a foreign group, we don't want to translate the
3070 ;; entire name.
3071 (if (setq idx (string-match ":" newsgroup))
3072 (aset newsgroup idx ?/)
3073 (setq idx 0))
3074 ;; Replace all occurrences of `.' with `/'.
3075 (while (< idx len)
3076 (if (= (aref newsgroup idx) ?.)
3077 (aset newsgroup idx ?/))
3078 (setq idx (1+ idx)))
3079 newsgroup))
3081 (defun gnus-newsgroup-savable-name (group)
3082 ;; Replace any slashes in a group name (eg. an ange-ftp nndoc group)
3083 ;; with dots.
3084 (nnheader-replace-chars-in-string group ?/ ?.))
3086 (defun gnus-make-directory (dir)
3087 "Make DIRECTORY recursively."
3088 ;; Why don't we use `(make-directory dir 'parents)'? That's just one
3089 ;; of the many mysteries of the universe.
3090 (let* ((dir (expand-file-name dir default-directory))
3091 dirs err)
3092 (if (string-match "/$" dir)
3093 (setq dir (substring dir 0 (match-beginning 0))))
3094 ;; First go down the path until we find a directory that exists.
3095 (while (not (file-exists-p dir))
3096 (setq dirs (cons dir dirs))
3097 (string-match "/[^/]+$" dir)
3098 (setq dir (substring dir 0 (match-beginning 0))))
3099 ;; Then create all the subdirs.
3100 (while (and dirs (not err))
3101 (condition-case ()
3102 (make-directory (car dirs))
3103 (error (setq err t)))
3104 (setq dirs (cdr dirs)))
3105 ;; We return whether we were successful or not.
3106 (not dirs)))
3108 (defun gnus-capitalize-newsgroup (newsgroup)
3109 "Capitalize NEWSGROUP name."
3110 (and (not (zerop (length newsgroup)))
3111 (concat (char-to-string (upcase (aref newsgroup 0)))
3112 (substring newsgroup 1))))
3114 ;; Various... things.
3116 (defun gnus-simplify-subject (subject &optional re-only)
3117 "Remove `Re:' and words in parentheses.
3118 If RE-ONLY is non-nil, strip leading `Re:'s only."
3119 (let ((case-fold-search t)) ;Ignore case.
3120 ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
3121 (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
3122 (setq subject (substring subject (match-end 0))))
3123 ;; Remove uninteresting prefixes.
3124 (if (and (not re-only)
3125 gnus-simplify-ignored-prefixes
3126 (string-match gnus-simplify-ignored-prefixes subject))
3127 (setq subject (substring subject (match-end 0))))
3128 ;; Remove words in parentheses from end.
3129 (unless re-only
3130 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
3131 (setq subject (substring subject 0 (match-beginning 0)))))
3132 ;; Return subject string.
3133 subject))
3135 ;; Remove any leading "re:"s, any trailing paren phrases, and simplify
3136 ;; all whitespace.
3137 ;; Written by Stainless Steel Rat <ratinox@ccs.neu.edu>.
3138 (defun gnus-simplify-buffer-fuzzy ()
3139 (let ((case-fold-search t))
3140 (goto-char (point-min))
3141 (while (search-forward "\t" nil t)
3142 (replace-match " " t t))
3143 (goto-char (point-min))
3144 (re-search-forward "^ *\\(re\\|fwd\\)[[{(^0-9]*[])}]?[:;] *" nil t)
3145 (goto-char (match-beginning 0))
3146 (while (or
3147 (looking-at "^ *\\(re\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
3148 (looking-at "^[[].*: .*[]]$"))
3149 (goto-char (point-min))
3150 (while (re-search-forward "^ *\\(re\\|fwd\\)[[{(^0-9]*[])}]?[:;] *"
3151 nil t)
3152 (replace-match "" t t))
3153 (goto-char (point-min))
3154 (while (re-search-forward "^[[].*: .*[]]$" nil t)
3155 (goto-char (match-end 0))
3156 (delete-char -1)
3157 (delete-region
3158 (progn (goto-char (match-beginning 0)))
3159 (re-search-forward ":"))))
3160 (goto-char (point-min))
3161 (while (re-search-forward " *[[{(][^()\n]*[]})] *$" nil t)
3162 (replace-match "" t t))
3163 (goto-char (point-min))
3164 (while (re-search-forward " +" nil t)
3165 (replace-match " " t t))
3166 (goto-char (point-min))
3167 (while (re-search-forward " $" nil t)
3168 (replace-match "" t t))
3169 (goto-char (point-min))
3170 (while (re-search-forward "^ +" nil t)
3171 (replace-match "" t t))
3172 (goto-char (point-min))
3173 (when gnus-simplify-subject-fuzzy-regexp
3174 (if (listp gnus-simplify-subject-fuzzy-regexp)
3175 (let ((list gnus-simplify-subject-fuzzy-regexp))
3176 (while list
3177 (goto-char (point-min))
3178 (while (re-search-forward (car list) nil t)
3179 (replace-match "" t t))
3180 (setq list (cdr list))))
3181 (while (re-search-forward gnus-simplify-subject-fuzzy-regexp nil t)
3182 (replace-match "" t t))))))
3184 (defun gnus-simplify-subject-fuzzy (subject)
3185 "Siplify a subject string fuzzily."
3186 (save-excursion
3187 (gnus-set-work-buffer)
3188 (let ((case-fold-search t))
3189 (insert subject)
3190 (inline (gnus-simplify-buffer-fuzzy))
3191 (buffer-string))))
3193 ;; Add the current buffer to the list of buffers to be killed on exit.
3194 (defun gnus-add-current-to-buffer-list ()
3195 (or (memq (current-buffer) gnus-buffer-list)
3196 (setq gnus-buffer-list (cons (current-buffer) gnus-buffer-list))))
3198 (defun gnus-string> (s1 s2)
3199 (not (or (string< s1 s2)
3200 (string= s1 s2))))
3202 (defun gnus-read-active-file-p ()
3203 "Say whether the active file has been read from `gnus-select-method'."
3204 (memq gnus-select-method gnus-have-read-active-file))
3206 ;;; General various misc type functions.
3208 (defun gnus-clear-system ()
3209 "Clear all variables and buffers."
3210 ;; Clear Gnus variables.
3211 (let ((variables gnus-variable-list))
3212 (while variables
3213 (set (car variables) nil)
3214 (setq variables (cdr variables))))
3215 ;; Clear other internal variables.
3216 (setq gnus-list-of-killed-groups nil
3217 gnus-have-read-active-file nil
3218 gnus-newsrc-alist nil
3219 gnus-newsrc-hashtb nil
3220 gnus-killed-list nil
3221 gnus-zombie-list nil
3222 gnus-killed-hashtb nil
3223 gnus-active-hashtb nil
3224 gnus-moderated-list nil
3225 gnus-description-hashtb nil
3226 gnus-current-headers nil
3227 gnus-thread-indent-array nil
3228 gnus-newsgroup-headers nil
3229 gnus-newsgroup-name nil
3230 gnus-server-alist nil
3231 gnus-group-list-mode nil
3232 gnus-opened-servers nil
3233 gnus-group-mark-positions nil
3234 gnus-newsgroup-data nil
3235 gnus-newsgroup-unreads nil
3236 nnoo-state-alist nil
3237 gnus-current-select-method nil)
3238 (gnus-shutdown 'gnus)
3239 ;; Kill the startup file.
3240 (and gnus-current-startup-file
3241 (get-file-buffer gnus-current-startup-file)
3242 (kill-buffer (get-file-buffer gnus-current-startup-file)))
3243 ;; Clear the dribble buffer.
3244 (gnus-dribble-clear)
3245 ;; Kill global KILL file buffer.
3246 (when (get-file-buffer (gnus-newsgroup-kill-file nil))
3247 (kill-buffer (get-file-buffer (gnus-newsgroup-kill-file nil))))
3248 (gnus-kill-buffer nntp-server-buffer)
3249 ;; Kill Gnus buffers.
3250 (while gnus-buffer-list
3251 (gnus-kill-buffer (pop gnus-buffer-list)))
3252 ;; Remove Gnus frames.
3253 (gnus-kill-gnus-frames))
3255 (defun gnus-kill-gnus-frames ()
3256 "Kill all frames Gnus has created."
3257 (while gnus-created-frames
3258 (when (frame-live-p (car gnus-created-frames))
3259 ;; We slap a condition-case around this `delete-frame' to ensure
3260 ;; against errors if we try do delete the single frame that's left.
3261 (condition-case ()
3262 (delete-frame (car gnus-created-frames))
3263 (error nil)))
3264 (pop gnus-created-frames)))
3266 (defun gnus-windows-old-to-new (setting)
3267 ;; First we take care of the really, really old Gnus 3 actions.
3268 (when (symbolp setting)
3269 (setq setting
3270 ;; Take care of ooold GNUS 3.x values.
3271 (cond ((eq setting 'SelectArticle) 'article)
3272 ((memq setting '(SelectSubject ExpandSubject)) 'summary)
3273 ((memq setting '(SelectNewsgroup ExitNewsgroup)) 'group)
3274 (t setting))))
3275 (if (or (listp setting)
3276 (not (and gnus-window-configuration
3277 (memq setting '(group summary article)))))
3278 setting
3279 (let* ((setting (if (eq setting 'group)
3280 (if (assq 'newsgroup gnus-window-configuration)
3281 'newsgroup
3282 'newsgroups) setting))
3283 (elem (cadr (assq setting gnus-window-configuration)))
3284 (total (apply '+ elem))
3285 (types '(group summary article))
3286 (pbuf (if (eq setting 'newsgroups) 'group 'summary))
3287 (i 0)
3288 perc
3289 out)
3290 (while (< i 3)
3291 (or (not (numberp (nth i elem)))
3292 (zerop (nth i elem))
3293 (progn
3294 (setq perc (if (= i 2)
3296 (/ (float (nth 0 elem)) total)))
3297 (setq out (cons (if (eq pbuf (nth i types))
3298 (list (nth i types) perc 'point)
3299 (list (nth i types) perc))
3300 out))))
3301 (setq i (1+ i)))
3302 `(vertical 1.0 ,@(nreverse out)))))
3304 ;;;###autoload
3305 (defun gnus-add-configuration (conf)
3306 "Add the window configuration CONF to `gnus-buffer-configuration'."
3307 (setq gnus-buffer-configuration
3308 (cons conf (delq (assq (car conf) gnus-buffer-configuration)
3309 gnus-buffer-configuration))))
3311 (defvar gnus-frame-list nil)
3313 (defun gnus-configure-frame (split &optional window)
3314 "Split WINDOW according to SPLIT."
3315 (unless window
3316 (setq window (get-buffer-window (current-buffer))))
3317 (select-window window)
3318 ;; This might be an old-stylee buffer config.
3319 (when (vectorp split)
3320 (setq split (append split nil)))
3321 (when (or (consp (car split))
3322 (vectorp (car split)))
3323 (push 1.0 split)
3324 (push 'vertical split))
3325 ;; The SPLIT might be something that is to be evaled to
3326 ;; return a new SPLIT.
3327 (while (and (not (assq (car split) gnus-window-to-buffer))
3328 (gnus-functionp (car split)))
3329 (setq split (eval split)))
3330 (let* ((type (car split))
3331 (subs (cddr split))
3332 (len (if (eq type 'horizontal) (window-width) (window-height)))
3333 (total 0)
3334 (window-min-width (or gnus-window-min-width window-min-width))
3335 (window-min-height (or gnus-window-min-height window-min-height))
3336 s result new-win rest comp-subs size sub)
3337 (cond
3338 ;; Nothing to do here.
3339 ((null split))
3340 ;; Don't switch buffers.
3341 ((null type)
3342 (and (memq 'point split) window))
3343 ;; This is a buffer to be selected.
3344 ((not (memq type '(frame horizontal vertical)))
3345 (let ((buffer (cond ((stringp type) type)
3346 (t (cdr (assq type gnus-window-to-buffer)))))
3347 buf)
3348 (unless buffer
3349 (error "Illegal buffer type: %s" type))
3350 (unless (setq buf (get-buffer (if (symbolp buffer)
3351 (symbol-value buffer) buffer)))
3352 (setq buf (get-buffer-create (if (symbolp buffer)
3353 (symbol-value buffer) buffer))))
3354 (switch-to-buffer buf)
3355 ;; We return the window if it has the `point' spec.
3356 (and (memq 'point split) window)))
3357 ;; This is a frame split.
3358 ((eq type 'frame)
3359 (unless gnus-frame-list
3360 (setq gnus-frame-list (list (window-frame
3361 (get-buffer-window (current-buffer))))))
3362 (let ((i 0)
3363 params frame fresult)
3364 (while (< i (length subs))
3365 ;; Frame parameter is gotten from the sub-split.
3366 (setq params (cadr (elt subs i)))
3367 ;; It should be a list.
3368 (unless (listp params)
3369 (setq params nil))
3370 ;; Create a new frame?
3371 (unless (setq frame (elt gnus-frame-list i))
3372 (nconc gnus-frame-list (list (setq frame (make-frame params))))
3373 (push frame gnus-created-frames))
3374 ;; Is the old frame still alive?
3375 (unless (frame-live-p frame)
3376 (setcar (nthcdr i gnus-frame-list)
3377 (setq frame (make-frame params))))
3378 ;; Select the frame in question and do more splits there.
3379 (select-frame frame)
3380 (setq fresult (or (gnus-configure-frame (elt subs i)) fresult))
3381 (incf i))
3382 ;; Select the frame that has the selected buffer.
3383 (when fresult
3384 (select-frame (window-frame fresult)))))
3385 ;; This is a normal split.
3387 (when (> (length subs) 0)
3388 ;; First we have to compute the sizes of all new windows.
3389 (while subs
3390 (setq sub (append (pop subs) nil))
3391 (while (and (not (assq (car sub) gnus-window-to-buffer))
3392 (gnus-functionp (car sub)))
3393 (setq sub (eval sub)))
3394 (when sub
3395 (push sub comp-subs)
3396 (setq size (cadar comp-subs))
3397 (cond ((equal size 1.0)
3398 (setq rest (car comp-subs))
3399 (setq s 0))
3400 ((floatp size)
3401 (setq s (floor (* size len))))
3402 ((integerp size)
3403 (setq s size))
3405 (error "Illegal size: %s" size)))
3406 ;; Try to make sure that we are inside the safe limits.
3407 (cond ((zerop s))
3408 ((eq type 'horizontal)
3409 (setq s (max s window-min-width)))
3410 ((eq type 'vertical)
3411 (setq s (max s window-min-height))))
3412 (setcar (cdar comp-subs) s)
3413 (incf total s)))
3414 ;; Take care of the "1.0" spec.
3415 (if rest
3416 (setcar (cdr rest) (- len total))
3417 (error "No 1.0 specs in %s" split))
3418 ;; The we do the actual splitting in a nice recursive
3419 ;; fashion.
3420 (setq comp-subs (nreverse comp-subs))
3421 (while comp-subs
3422 (if (null (cdr comp-subs))
3423 (setq new-win window)
3424 (setq new-win
3425 (split-window window (cadar comp-subs)
3426 (eq type 'horizontal))))
3427 (setq result (or (gnus-configure-frame
3428 (car comp-subs) window) result))
3429 (select-window new-win)
3430 (setq window new-win)
3431 (setq comp-subs (cdr comp-subs))))
3432 ;; Return the proper window, if any.
3433 (when result
3434 (select-window result))))))
3436 (defvar gnus-frame-split-p nil)
3438 (defun gnus-configure-windows (setting &optional force)
3439 (setq setting (gnus-windows-old-to-new setting))
3440 (let ((split (if (symbolp setting)
3441 (cadr (assq setting gnus-buffer-configuration))
3442 setting))
3443 all-visible)
3445 (setq gnus-frame-split-p nil)
3447 (unless split
3448 (error "No such setting: %s" setting))
3450 (if (and (setq all-visible (gnus-all-windows-visible-p split))
3451 (not force))
3452 ;; All the windows mentioned are already visible, so we just
3453 ;; put point in the assigned buffer, and do not touch the
3454 ;; winconf.
3455 (select-window all-visible)
3457 ;; Either remove all windows or just remove all Gnus windows.
3458 (let ((frame (selected-frame)))
3459 (unwind-protect
3460 (if gnus-use-full-window
3461 ;; We want to remove all other windows.
3462 (if (not gnus-frame-split-p)
3463 ;; This is not a `frame' split, so we ignore the
3464 ;; other frames.
3465 (delete-other-windows)
3466 ;; This is a `frame' split, so we delete all windows
3467 ;; on all frames.
3468 (mapcar
3469 (lambda (frame)
3470 (unless (eq (cdr (assq 'minibuffer
3471 (frame-parameters frame)))
3472 'only)
3473 (select-frame frame)
3474 (delete-other-windows)))
3475 (frame-list)))
3476 ;; Just remove some windows.
3477 (gnus-remove-some-windows)
3478 (switch-to-buffer nntp-server-buffer))
3479 (select-frame frame)))
3481 (switch-to-buffer nntp-server-buffer)
3482 (gnus-configure-frame split (get-buffer-window (current-buffer))))))
3484 (defun gnus-all-windows-visible-p (split)
3485 "Say whether all buffers in SPLIT are currently visible.
3486 In particular, the value returned will be the window that
3487 should have point."
3488 (let ((stack (list split))
3489 (all-visible t)
3490 type buffer win buf)
3491 (while (and (setq split (pop stack))
3492 all-visible)
3493 ;; Be backwards compatible.
3494 (when (vectorp split)
3495 (setq split (append split nil)))
3496 (when (or (consp (car split))
3497 (vectorp (car split)))
3498 (push 1.0 split)
3499 (push 'vertical split))
3500 ;; The SPLIT might be something that is to be evaled to
3501 ;; return a new SPLIT.
3502 (while (and (not (assq (car split) gnus-window-to-buffer))
3503 (gnus-functionp (car split)))
3504 (setq split (eval split)))
3506 (setq type (elt split 0))
3507 (cond
3508 ;; Nothing here.
3509 ((null split) t)
3510 ;; A buffer.
3511 ((not (memq type '(horizontal vertical frame)))
3512 (setq buffer (cond ((stringp type) type)
3513 (t (cdr (assq type gnus-window-to-buffer)))))
3514 (unless buffer
3515 (error "Illegal buffer type: %s" type))
3516 (when (setq buf (get-buffer (if (symbolp buffer)
3517 (symbol-value buffer)
3518 buffer)))
3519 (setq win (get-buffer-window buf t)))
3520 (if win
3521 (when (memq 'point split)
3522 (setq all-visible win))
3523 (setq all-visible nil)))
3525 (when (eq type 'frame)
3526 (setq gnus-frame-split-p t))
3527 (setq stack (append (cddr split) stack)))))
3528 (unless (eq all-visible t)
3529 all-visible)))
3531 (defun gnus-window-top-edge (&optional window)
3532 (nth 1 (window-edges window)))
3534 (defun gnus-remove-some-windows ()
3535 (let ((buffers gnus-window-to-buffer)
3536 buf bufs lowest-buf lowest)
3537 (save-excursion
3538 ;; Remove windows on all known Gnus buffers.
3539 (while buffers
3540 (setq buf (cdar buffers))
3541 (if (symbolp buf)
3542 (setq buf (and (boundp buf) (symbol-value buf))))
3543 (and buf
3544 (get-buffer-window buf)
3545 (progn
3546 (setq bufs (cons buf bufs))
3547 (pop-to-buffer buf)
3548 (if (or (not lowest)
3549 (< (gnus-window-top-edge) lowest))
3550 (progn
3551 (setq lowest (gnus-window-top-edge))
3552 (setq lowest-buf buf)))))
3553 (setq buffers (cdr buffers)))
3554 ;; Remove windows on *all* summary buffers.
3555 (walk-windows
3556 (lambda (win)
3557 (let ((buf (window-buffer win)))
3558 (if (string-match "^\\*Summary" (buffer-name buf))
3559 (progn
3560 (setq bufs (cons buf bufs))
3561 (pop-to-buffer buf)
3562 (if (or (not lowest)
3563 (< (gnus-window-top-edge) lowest))
3564 (progn
3565 (setq lowest-buf buf)
3566 (setq lowest (gnus-window-top-edge)))))))))
3567 (and lowest-buf
3568 (progn
3569 (pop-to-buffer lowest-buf)
3570 (switch-to-buffer nntp-server-buffer)))
3571 (while bufs
3572 (and (not (eq (car bufs) lowest-buf))
3573 (delete-windows-on (car bufs)))
3574 (setq bufs (cdr bufs))))))
3576 (defun gnus-version (&optional arg)
3577 "Version number of this version of Gnus.
3578 If ARG, insert string at point."
3579 (interactive "P")
3580 (let ((methods gnus-valid-select-methods)
3581 (mess gnus-version)
3582 meth)
3583 ;; Go through all the legal select methods and add their version
3584 ;; numbers to the total version string. Only the backends that are
3585 ;; currently in use will have their message numbers taken into
3586 ;; consideration.
3587 (while methods
3588 (setq meth (intern (concat (caar methods) "-version")))
3589 (and (boundp meth)
3590 (stringp (symbol-value meth))
3591 (setq mess (concat mess "; " (symbol-value meth))))
3592 (setq methods (cdr methods)))
3593 (if arg
3594 (insert (message mess))
3595 (message mess))))
3597 (defun gnus-info-find-node ()
3598 "Find Info documentation of Gnus."
3599 (interactive)
3600 ;; Enlarge info window if needed.
3601 (let ((mode major-mode)
3602 gnus-info-buffer)
3603 (Info-goto-node (cadr (assq mode gnus-info-nodes)))
3604 (setq gnus-info-buffer (current-buffer))
3605 (gnus-configure-windows 'info)))
3607 (defun gnus-days-between (date1 date2)
3608 ;; Return the number of days between date1 and date2.
3609 (- (gnus-day-number date1) (gnus-day-number date2)))
3611 (defun gnus-day-number (date)
3612 (let ((dat (mapcar (lambda (s) (and s (string-to-int s)) )
3613 (timezone-parse-date date))))
3614 (timezone-absolute-from-gregorian
3615 (nth 1 dat) (nth 2 dat) (car dat))))
3617 (defun gnus-encode-date (date)
3618 "Convert DATE to internal time."
3619 (let* ((parse (timezone-parse-date date))
3620 (date (mapcar (lambda (d) (and d (string-to-int d))) parse))
3621 (time (mapcar 'string-to-int (timezone-parse-time (aref parse 3)))))
3622 (encode-time (caddr time) (cadr time) (car time)
3623 (caddr date) (cadr date) (car date) (nth 4 date))))
3625 (defun gnus-time-minus (t1 t2)
3626 "Subtract two internal times."
3627 (let ((borrow (< (cadr t1) (cadr t2))))
3628 (list (- (car t1) (car t2) (if borrow 1 0))
3629 (- (+ (if borrow 65536 0) (cadr t1)) (cadr t2)))))
3631 (defun gnus-file-newer-than (file date)
3632 (let ((fdate (nth 5 (file-attributes file))))
3633 (or (> (car fdate) (car date))
3634 (and (= (car fdate) (car date))
3635 (> (nth 1 fdate) (nth 1 date))))))
3637 (defmacro gnus-local-set-keys (&rest plist)
3638 "Set the keys in PLIST in the current keymap."
3639 `(gnus-define-keys-1 (current-local-map) ',plist))
3641 (defmacro gnus-define-keys (keymap &rest plist)
3642 "Define all keys in PLIST in KEYMAP."
3643 `(gnus-define-keys-1 (quote ,keymap) (quote ,plist)))
3645 (put 'gnus-define-keys 'lisp-indent-function 1)
3646 (put 'gnus-define-keys 'lisp-indent-hook 1)
3647 (put 'gnus-define-keymap 'lisp-indent-function 1)
3648 (put 'gnus-define-keymap 'lisp-indent-hook 1)
3650 (defmacro gnus-define-keymap (keymap &rest plist)
3651 "Define all keys in PLIST in KEYMAP."
3652 `(gnus-define-keys-1 ,keymap (quote ,plist)))
3654 (defun gnus-define-keys-1 (keymap plist)
3655 (when (null keymap)
3656 (error "Can't set keys in a null keymap"))
3657 (cond ((symbolp keymap)
3658 (setq keymap (symbol-value keymap)))
3659 ((keymapp keymap))
3660 ((listp keymap)
3661 (set (car keymap) nil)
3662 (define-prefix-command (car keymap))
3663 (define-key (symbol-value (caddr keymap)) (cadr keymap) (car keymap))
3664 (setq keymap (symbol-value (car keymap)))))
3665 (let (key)
3666 (while plist
3667 (when (symbolp (setq key (pop plist)))
3668 (setq key (symbol-value key)))
3669 (define-key keymap key (pop plist)))))
3671 (defun gnus-group-read-only-p (&optional group)
3672 "Check whether GROUP supports editing or not.
3673 If GROUP is nil, `gnus-newsgroup-name' will be checked instead. Note
3674 that that variable is buffer-local to the summary buffers."
3675 (let ((group (or group gnus-newsgroup-name)))
3676 (not (gnus-check-backend-function 'request-replace-article group))))
3678 (defun gnus-group-total-expirable-p (group)
3679 "Check whether GROUP is total-expirable or not."
3680 (let ((params (gnus-info-params (gnus-get-info group))))
3681 (or (memq 'total-expire params)
3682 (cdr (assq 'total-expire params)) ; (total-expire . t)
3683 (and gnus-total-expirable-newsgroups ; Check var.
3684 (string-match gnus-total-expirable-newsgroups group)))))
3686 (defun gnus-group-auto-expirable-p (group)
3687 "Check whether GROUP is total-expirable or not."
3688 (let ((params (gnus-info-params (gnus-get-info group))))
3689 (or (memq 'auto-expire params)
3690 (cdr (assq 'auto-expire params)) ; (auto-expire . t)
3691 (and gnus-auto-expirable-newsgroups ; Check var.
3692 (string-match gnus-auto-expirable-newsgroups group)))))
3694 (defun gnus-virtual-group-p (group)
3695 "Say whether GROUP is virtual or not."
3696 (memq 'virtual (assoc (symbol-name (car (gnus-find-method-for-group group)))
3697 gnus-valid-select-methods)))
3699 (defun gnus-news-group-p (group &optional article)
3700 "Return non-nil if GROUP (and ARTICLE) come from a news server."
3701 (or (gnus-member-of-valid 'post group) ; Ordinary news group.
3702 (and (gnus-member-of-valid 'post-mail group) ; Combined group.
3703 (eq (gnus-request-type group article) 'news))))
3705 (defsubst gnus-simplify-subject-fully (subject)
3706 "Simplify a subject string according to the user's wishes."
3707 (cond
3708 ((null gnus-summary-gather-subject-limit)
3709 (gnus-simplify-subject-re subject))
3710 ((eq gnus-summary-gather-subject-limit 'fuzzy)
3711 (gnus-simplify-subject-fuzzy subject))
3712 ((numberp gnus-summary-gather-subject-limit)
3713 (gnus-limit-string (gnus-simplify-subject-re subject)
3714 gnus-summary-gather-subject-limit))
3716 subject)))
3718 (defsubst gnus-subject-equal (s1 s2 &optional simple-first)
3719 "Check whether two subjects are equal. If optional argument
3720 simple-first is t, first argument is already simplified."
3721 (cond
3722 ((null simple-first)
3723 (equal (gnus-simplify-subject-fully s1)
3724 (gnus-simplify-subject-fully s2)))
3726 (equal s1
3727 (gnus-simplify-subject-fully s2)))))
3729 ;; Returns a list of writable groups.
3730 (defun gnus-writable-groups ()
3731 (let ((alist gnus-newsrc-alist)
3732 groups group)
3733 (while (setq group (car (pop alist)))
3734 (unless (gnus-group-read-only-p group)
3735 (push group groups)))
3736 (nreverse groups)))
3738 (defun gnus-completing-read (default prompt &rest args)
3739 ;; Like `completing-read', except that DEFAULT is the default argument.
3740 (let* ((prompt (if default
3741 (concat prompt " (default " default ") ")
3742 (concat prompt " ")))
3743 (answer (apply 'completing-read prompt args)))
3744 (if (or (null answer) (zerop (length answer)))
3745 default
3746 answer)))
3748 ;; Two silly functions to ensure that all `y-or-n-p' questions clear
3749 ;; the echo area.
3750 (defun gnus-y-or-n-p (prompt)
3751 (prog1
3752 (y-or-n-p prompt)
3753 (message "")))
3755 (defun gnus-yes-or-no-p (prompt)
3756 (prog1
3757 (yes-or-no-p prompt)
3758 (message "")))
3760 ;; Check whether to use long file names.
3761 (defun gnus-use-long-file-name (symbol)
3762 ;; The variable has to be set...
3763 (and gnus-use-long-file-name
3764 ;; If it isn't a list, then we return t.
3765 (or (not (listp gnus-use-long-file-name))
3766 ;; If it is a list, and the list contains `symbol', we
3767 ;; return nil.
3768 (not (memq symbol gnus-use-long-file-name)))))
3770 ;; I suspect there's a better way, but I haven't taken the time to do
3771 ;; it yet. -erik selberg@cs.washington.edu
3772 (defun gnus-dd-mmm (messy-date)
3773 "Return a string like DD-MMM from a big messy string"
3774 (let ((datevec (condition-case () (timezone-parse-date messy-date)
3775 (error nil))))
3776 (if (not datevec)
3777 "??-???"
3778 (format "%2s-%s"
3779 (condition-case ()
3780 ;; Make sure leading zeroes are stripped.
3781 (number-to-string (string-to-number (aref datevec 2)))
3782 (error "??"))
3783 (capitalize
3784 (or (car
3785 (nth (1- (string-to-number (aref datevec 1)))
3786 timezone-months-assoc))
3787 "???"))))))
3789 (defun gnus-mode-string-quote (string)
3790 "Quote all \"%\" in STRING."
3791 (save-excursion
3792 (gnus-set-work-buffer)
3793 (insert string)
3794 (goto-char (point-min))
3795 (while (search-forward "%" nil t)
3796 (insert "%"))
3797 (buffer-string)))
3799 ;; Make a hash table (default and minimum size is 255).
3800 ;; Optional argument HASHSIZE specifies the table size.
3801 (defun gnus-make-hashtable (&optional hashsize)
3802 (make-vector (if hashsize (max (gnus-create-hash-size hashsize) 255) 255) 0))
3804 ;; Make a number that is suitable for hashing; bigger than MIN and one
3805 ;; less than 2^x.
3806 (defun gnus-create-hash-size (min)
3807 (let ((i 1))
3808 (while (< i min)
3809 (setq i (* 2 i)))
3810 (1- i)))
3812 ;; Show message if message has a lower level than `gnus-verbose'.
3813 ;; Guideline for numbers:
3814 ;; 1 - error messages, 3 - non-serious error messages, 5 - messages
3815 ;; for things that take a long time, 7 - not very important messages
3816 ;; on stuff, 9 - messages inside loops.
3817 (defun gnus-message (level &rest args)
3818 (if (<= level gnus-verbose)
3819 (apply 'message args)
3820 ;; We have to do this format thingy here even if the result isn't
3821 ;; shown - the return value has to be the same as the return value
3822 ;; from `message'.
3823 (apply 'format args)))
3825 (defun gnus-error (level &rest args)
3826 "Beep an error if LEVEL is equal to or less than `gnus-verbose'."
3827 (when (<= (floor level) gnus-verbose)
3828 (apply 'message args)
3829 (ding)
3830 (let (duration)
3831 (when (and (floatp level)
3832 (not (zerop (setq duration (* 10 (- level (floor level)))))))
3833 (sit-for duration))))
3834 nil)
3836 ;; Generate a unique new group name.
3837 (defun gnus-generate-new-group-name (leaf)
3838 (let ((name leaf)
3839 (num 0))
3840 (while (gnus-gethash name gnus-newsrc-hashtb)
3841 (setq name (concat leaf "<" (int-to-string (setq num (1+ num))) ">")))
3842 name))
3844 (defsubst gnus-hide-text (b e props)
3845 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
3846 (gnus-add-text-properties b e props)
3847 (when (memq 'intangible props)
3848 (gnus-put-text-property (max (1- b) (point-min))
3849 b 'intangible (cddr (memq 'intangible props)))))
3851 (defsubst gnus-unhide-text (b e)
3852 "Remove hidden text properties from region between B and E."
3853 (remove-text-properties b e gnus-hidden-properties)
3854 (when (memq 'intangible gnus-hidden-properties)
3855 (gnus-put-text-property (max (1- b) (point-min))
3856 b 'intangible nil)))
3858 (defun gnus-hide-text-type (b e type)
3859 "Hide text of TYPE between B and E."
3860 (gnus-hide-text b e (cons 'gnus-type (cons type gnus-hidden-properties))))
3862 (defun gnus-parent-headers (headers &optional generation)
3863 "Return the headers of the GENERATIONeth parent of HEADERS."
3864 (unless generation
3865 (setq generation 1))
3866 (let (references parent)
3867 (while (and headers (not (zerop generation)))
3868 (setq references (mail-header-references headers))
3869 (when (and references
3870 (setq parent (gnus-parent-id references))
3871 (setq headers (car (gnus-id-to-thread parent))))
3872 (decf generation)))
3873 headers))
3875 (defun gnus-parent-id (references)
3876 "Return the last Message-ID in REFERENCES."
3877 (when (and references
3878 (string-match "\\(<[^\n<>]+>\\)[ \t\n]*\\'" references))
3879 (substring references (match-beginning 1) (match-end 1))))
3881 (defun gnus-split-references (references)
3882 "Return a list of Message-IDs in REFERENCES."
3883 (let ((beg 0)
3884 ids)
3885 (while (string-match "<[^>]+>" references beg)
3886 (push (substring references (match-beginning 0) (setq beg (match-end 0)))
3887 ids))
3888 (nreverse ids)))
3890 (defun gnus-buffer-live-p (buffer)
3891 "Say whether BUFFER is alive or not."
3892 (and buffer
3893 (get-buffer buffer)
3894 (buffer-name (get-buffer buffer))))
3896 (defun gnus-ephemeral-group-p (group)
3897 "Say whether GROUP is ephemeral or not."
3898 (gnus-group-get-parameter group 'quit-config))
3900 (defun gnus-group-quit-config (group)
3901 "Return the quit-config of GROUP."
3902 (gnus-group-get-parameter group 'quit-config))
3904 (defun gnus-simplify-mode-line ()
3905 "Make mode lines a bit simpler."
3906 (setq mode-line-modified "-- ")
3907 (when (listp mode-line-format)
3908 (make-local-variable 'mode-line-format)
3909 (setq mode-line-format (copy-sequence mode-line-format))
3910 (when (equal (nth 3 mode-line-format) " ")
3911 (setcar (nthcdr 3 mode-line-format) " "))))
3913 ;;; List and range functions
3915 (defun gnus-last-element (list)
3916 "Return last element of LIST."
3917 (while (cdr list)
3918 (setq list (cdr list)))
3919 (car list))
3921 (defun gnus-copy-sequence (list)
3922 "Do a complete, total copy of a list."
3923 (if (and (consp list) (not (consp (cdr list))))
3924 (cons (car list) (cdr list))
3925 (mapcar (lambda (elem) (if (consp elem)
3926 (if (consp (cdr elem))
3927 (gnus-copy-sequence elem)
3928 (cons (car elem) (cdr elem)))
3929 elem))
3930 list)))
3932 (defun gnus-set-difference (list1 list2)
3933 "Return a list of elements of LIST1 that do not appear in LIST2."
3934 (let ((list1 (copy-sequence list1)))
3935 (while list2
3936 (setq list1 (delq (car list2) list1))
3937 (setq list2 (cdr list2)))
3938 list1))
3940 (defun gnus-sorted-complement (list1 list2)
3941 "Return a list of elements of LIST1 that do not appear in LIST2.
3942 Both lists have to be sorted over <."
3943 (let (out)
3944 (if (or (null list1) (null list2))
3945 (or list1 list2)
3946 (while (and list1 list2)
3947 (cond ((= (car list1) (car list2))
3948 (setq list1 (cdr list1)
3949 list2 (cdr list2)))
3950 ((< (car list1) (car list2))
3951 (setq out (cons (car list1) out))
3952 (setq list1 (cdr list1)))
3954 (setq out (cons (car list2) out))
3955 (setq list2 (cdr list2)))))
3956 (nconc (nreverse out) (or list1 list2)))))
3958 (defun gnus-intersection (list1 list2)
3959 (let ((result nil))
3960 (while list2
3961 (if (memq (car list2) list1)
3962 (setq result (cons (car list2) result)))
3963 (setq list2 (cdr list2)))
3964 result))
3966 (defun gnus-sorted-intersection (list1 list2)
3967 ;; LIST1 and LIST2 have to be sorted over <.
3968 (let (out)
3969 (while (and list1 list2)
3970 (cond ((= (car list1) (car list2))
3971 (setq out (cons (car list1) out)
3972 list1 (cdr list1)
3973 list2 (cdr list2)))
3974 ((< (car list1) (car list2))
3975 (setq list1 (cdr list1)))
3977 (setq list2 (cdr list2)))))
3978 (nreverse out)))
3980 (defun gnus-set-sorted-intersection (list1 list2)
3981 ;; LIST1 and LIST2 have to be sorted over <.
3982 ;; This function modifies LIST1.
3983 (let* ((top (cons nil list1))
3984 (prev top))
3985 (while (and list1 list2)
3986 (cond ((= (car list1) (car list2))
3987 (setq prev list1
3988 list1 (cdr list1)
3989 list2 (cdr list2)))
3990 ((< (car list1) (car list2))
3991 (setcdr prev (cdr list1))
3992 (setq list1 (cdr list1)))
3994 (setq list2 (cdr list2)))))
3995 (setcdr prev nil)
3996 (cdr top)))
3998 (defun gnus-compress-sequence (numbers &optional always-list)
3999 "Convert list of numbers to a list of ranges or a single range.
4000 If ALWAYS-LIST is non-nil, this function will always release a list of
4001 ranges."
4002 (let* ((first (car numbers))
4003 (last (car numbers))
4004 result)
4005 (if (null numbers)
4007 (if (not (listp (cdr numbers)))
4008 numbers
4009 (while numbers
4010 (cond ((= last (car numbers)) nil) ;Omit duplicated number
4011 ((= (1+ last) (car numbers)) ;Still in sequence
4012 (setq last (car numbers)))
4013 (t ;End of one sequence
4014 (setq result
4015 (cons (if (= first last) first
4016 (cons first last)) result))
4017 (setq first (car numbers))
4018 (setq last (car numbers))))
4019 (setq numbers (cdr numbers)))
4020 (if (and (not always-list) (null result))
4021 (if (= first last) (list first) (cons first last))
4022 (nreverse (cons (if (= first last) first (cons first last))
4023 result)))))))
4025 (defalias 'gnus-uncompress-sequence 'gnus-uncompress-range)
4026 (defun gnus-uncompress-range (ranges)
4027 "Expand a list of ranges into a list of numbers.
4028 RANGES is either a single range on the form `(num . num)' or a list of
4029 these ranges."
4030 (let (first last result)
4031 (cond
4032 ((null ranges)
4033 nil)
4034 ((not (listp (cdr ranges)))
4035 (setq first (car ranges))
4036 (setq last (cdr ranges))
4037 (while (<= first last)
4038 (setq result (cons first result))
4039 (setq first (1+ first)))
4040 (nreverse result))
4042 (while ranges
4043 (if (atom (car ranges))
4044 (if (numberp (car ranges))
4045 (setq result (cons (car ranges) result)))
4046 (setq first (caar ranges))
4047 (setq last (cdar ranges))
4048 (while (<= first last)
4049 (setq result (cons first result))
4050 (setq first (1+ first))))
4051 (setq ranges (cdr ranges)))
4052 (nreverse result)))))
4054 (defun gnus-add-to-range (ranges list)
4055 "Return a list of ranges that has all articles from both RANGES and LIST.
4056 Note: LIST has to be sorted over `<'."
4057 (if (not ranges)
4058 (gnus-compress-sequence list t)
4059 (setq list (copy-sequence list))
4060 (or (listp (cdr ranges))
4061 (setq ranges (list ranges)))
4062 (let ((out ranges)
4063 ilist lowest highest temp)
4064 (while (and ranges list)
4065 (setq ilist list)
4066 (setq lowest (or (and (atom (car ranges)) (car ranges))
4067 (caar ranges)))
4068 (while (and list (cdr list) (< (cadr list) lowest))
4069 (setq list (cdr list)))
4070 (if (< (car ilist) lowest)
4071 (progn
4072 (setq temp list)
4073 (setq list (cdr list))
4074 (setcdr temp nil)
4075 (setq out (nconc (gnus-compress-sequence ilist t) out))))
4076 (setq highest (or (and (atom (car ranges)) (car ranges))
4077 (cdar ranges)))
4078 (while (and list (<= (car list) highest))
4079 (setq list (cdr list)))
4080 (setq ranges (cdr ranges)))
4081 (if list
4082 (setq out (nconc (gnus-compress-sequence list t) out)))
4083 (setq out (sort out (lambda (r1 r2)
4084 (< (or (and (atom r1) r1) (car r1))
4085 (or (and (atom r2) r2) (car r2))))))
4086 (setq ranges out)
4087 (while ranges
4088 (if (atom (car ranges))
4089 (if (cdr ranges)
4090 (if (atom (cadr ranges))
4091 (if (= (1+ (car ranges)) (cadr ranges))
4092 (progn
4093 (setcar ranges (cons (car ranges)
4094 (cadr ranges)))
4095 (setcdr ranges (cddr ranges))))
4096 (if (= (1+ (car ranges)) (caadr ranges))
4097 (progn
4098 (setcar (cadr ranges) (car ranges))
4099 (setcar ranges (cadr ranges))
4100 (setcdr ranges (cddr ranges))))))
4101 (if (cdr ranges)
4102 (if (atom (cadr ranges))
4103 (if (= (1+ (cdar ranges)) (cadr ranges))
4104 (progn
4105 (setcdr (car ranges) (cadr ranges))
4106 (setcdr ranges (cddr ranges))))
4107 (if (= (1+ (cdar ranges)) (caadr ranges))
4108 (progn
4109 (setcdr (car ranges) (cdadr ranges))
4110 (setcdr ranges (cddr ranges)))))))
4111 (setq ranges (cdr ranges)))
4112 out)))
4114 (defun gnus-remove-from-range (ranges list)
4115 "Return a list of ranges that has all articles from LIST removed from RANGES.
4116 Note: LIST has to be sorted over `<'."
4117 ;; !!! This function shouldn't look like this, but I've got a headache.
4118 (gnus-compress-sequence
4119 (gnus-sorted-complement
4120 (gnus-uncompress-range ranges) list)))
4122 (defun gnus-member-of-range (number ranges)
4123 (if (not (listp (cdr ranges)))
4124 (and (>= number (car ranges))
4125 (<= number (cdr ranges)))
4126 (let ((not-stop t))
4127 (while (and ranges
4128 (if (numberp (car ranges))
4129 (>= number (car ranges))
4130 (>= number (caar ranges)))
4131 not-stop)
4132 (if (if (numberp (car ranges))
4133 (= number (car ranges))
4134 (and (>= number (caar ranges))
4135 (<= number (cdar ranges))))
4136 (setq not-stop nil))
4137 (setq ranges (cdr ranges)))
4138 (not not-stop))))
4140 (defun gnus-range-length (range)
4141 "Return the length RANGE would have if uncompressed."
4142 (length (gnus-uncompress-range range)))
4144 (defun gnus-sublist-p (list sublist)
4145 "Test whether all elements in SUBLIST are members of LIST."
4146 (let ((sublistp t))
4147 (while sublist
4148 (unless (memq (pop sublist) list)
4149 (setq sublistp nil
4150 sublist nil)))
4151 sublistp))
4155 ;;; Gnus group mode
4158 (defvar gnus-group-mode-map nil)
4159 (put 'gnus-group-mode 'mode-class 'special)
4161 (unless gnus-group-mode-map
4162 (setq gnus-group-mode-map (make-keymap))
4163 (suppress-keymap gnus-group-mode-map)
4165 (gnus-define-keys gnus-group-mode-map
4166 " " gnus-group-read-group
4167 "=" gnus-group-select-group
4168 "\r" gnus-group-select-group
4169 "\M-\r" gnus-group-quick-select-group
4170 "j" gnus-group-jump-to-group
4171 "n" gnus-group-next-unread-group
4172 "p" gnus-group-prev-unread-group
4173 "\177" gnus-group-prev-unread-group
4174 [delete] gnus-group-prev-unread-group
4175 "N" gnus-group-next-group
4176 "P" gnus-group-prev-group
4177 "\M-n" gnus-group-next-unread-group-same-level
4178 "\M-p" gnus-group-prev-unread-group-same-level
4179 "," gnus-group-best-unread-group
4180 "." gnus-group-first-unread-group
4181 "u" gnus-group-unsubscribe-current-group
4182 "U" gnus-group-unsubscribe-group
4183 "c" gnus-group-catchup-current
4184 "C" gnus-group-catchup-current-all
4185 "l" gnus-group-list-groups
4186 "L" gnus-group-list-all-groups
4187 "m" gnus-group-mail
4188 "g" gnus-group-get-new-news
4189 "\M-g" gnus-group-get-new-news-this-group
4190 "R" gnus-group-restart
4191 "r" gnus-group-read-init-file
4192 "B" gnus-group-browse-foreign-server
4193 "b" gnus-group-check-bogus-groups
4194 "F" gnus-find-new-newsgroups
4195 "\C-c\C-d" gnus-group-describe-group
4196 "\M-d" gnus-group-describe-all-groups
4197 "\C-c\C-a" gnus-group-apropos
4198 "\C-c\M-\C-a" gnus-group-description-apropos
4199 "a" gnus-group-post-news
4200 "\ek" gnus-group-edit-local-kill
4201 "\eK" gnus-group-edit-global-kill
4202 "\C-k" gnus-group-kill-group
4203 "\C-y" gnus-group-yank-group
4204 "\C-w" gnus-group-kill-region
4205 "\C-x\C-t" gnus-group-transpose-groups
4206 "\C-c\C-l" gnus-group-list-killed
4207 "\C-c\C-x" gnus-group-expire-articles
4208 "\C-c\M-\C-x" gnus-group-expire-all-groups
4209 "V" gnus-version
4210 "s" gnus-group-save-newsrc
4211 "z" gnus-group-suspend
4212 ; "Z" gnus-group-clear-dribble
4213 "q" gnus-group-exit
4214 "Q" gnus-group-quit
4215 "?" gnus-group-describe-briefly
4216 "\C-c\C-i" gnus-info-find-node
4217 "\M-e" gnus-group-edit-group-method
4218 "^" gnus-group-enter-server-mode
4219 gnus-mouse-2 gnus-mouse-pick-group
4220 "<" beginning-of-buffer
4221 ">" end-of-buffer
4222 "\C-c\C-b" gnus-bug
4223 "\C-c\C-s" gnus-group-sort-groups
4224 "t" gnus-topic-mode
4225 "\C-c\M-g" gnus-activate-all-groups
4226 "\M-&" gnus-group-universal-argument
4227 "#" gnus-group-mark-group
4228 "\M-#" gnus-group-unmark-group)
4230 (gnus-define-keys (gnus-group-mark-map "M" gnus-group-mode-map)
4231 "m" gnus-group-mark-group
4232 "u" gnus-group-unmark-group
4233 "w" gnus-group-mark-region
4234 "m" gnus-group-mark-buffer
4235 "r" gnus-group-mark-regexp
4236 "U" gnus-group-unmark-all-groups)
4238 (gnus-define-keys (gnus-group-group-map "G" gnus-group-mode-map)
4239 "d" gnus-group-make-directory-group
4240 "h" gnus-group-make-help-group
4241 "a" gnus-group-make-archive-group
4242 "k" gnus-group-make-kiboze-group
4243 "m" gnus-group-make-group
4244 "E" gnus-group-edit-group
4245 "e" gnus-group-edit-group-method
4246 "p" gnus-group-edit-group-parameters
4247 "v" gnus-group-add-to-virtual
4248 "V" gnus-group-make-empty-virtual
4249 "D" gnus-group-enter-directory
4250 "f" gnus-group-make-doc-group
4251 "r" gnus-group-rename-group
4252 "\177" gnus-group-delete-group
4253 [delete] gnus-group-delete-group)
4255 (gnus-define-keys (gnus-group-soup-map "s" gnus-group-group-map)
4256 "b" gnus-group-brew-soup
4257 "w" gnus-soup-save-areas
4258 "s" gnus-soup-send-replies
4259 "p" gnus-soup-pack-packet
4260 "r" nnsoup-pack-replies)
4262 (gnus-define-keys (gnus-group-sort-map "S" gnus-group-group-map)
4263 "s" gnus-group-sort-groups
4264 "a" gnus-group-sort-groups-by-alphabet
4265 "u" gnus-group-sort-groups-by-unread
4266 "l" gnus-group-sort-groups-by-level
4267 "v" gnus-group-sort-groups-by-score
4268 "r" gnus-group-sort-groups-by-rank
4269 "m" gnus-group-sort-groups-by-method)
4271 (gnus-define-keys (gnus-group-list-map "A" gnus-group-mode-map)
4272 "k" gnus-group-list-killed
4273 "z" gnus-group-list-zombies
4274 "s" gnus-group-list-groups
4275 "u" gnus-group-list-all-groups
4276 "A" gnus-group-list-active
4277 "a" gnus-group-apropos
4278 "d" gnus-group-description-apropos
4279 "m" gnus-group-list-matching
4280 "M" gnus-group-list-all-matching
4281 "l" gnus-group-list-level)
4283 (gnus-define-keys (gnus-group-score-map "W" gnus-group-mode-map)
4284 "f" gnus-score-flush-cache)
4286 (gnus-define-keys (gnus-group-help-map "H" gnus-group-mode-map)
4287 "f" gnus-group-fetch-faq)
4289 (gnus-define-keys (gnus-group-sub-map "S" gnus-group-mode-map)
4290 "l" gnus-group-set-current-level
4291 "t" gnus-group-unsubscribe-current-group
4292 "s" gnus-group-unsubscribe-group
4293 "k" gnus-group-kill-group
4294 "y" gnus-group-yank-group
4295 "w" gnus-group-kill-region
4296 "\C-k" gnus-group-kill-level
4297 "z" gnus-group-kill-all-zombies))
4299 (defun gnus-group-mode ()
4300 "Major mode for reading news.
4302 All normal editing commands are switched off.
4303 \\<gnus-group-mode-map>
4304 The group buffer lists (some of) the groups available. For instance,
4305 `\\[gnus-group-list-groups]' will list all subscribed groups with unread articles, while `\\[gnus-group-list-zombies]'
4306 lists all zombie groups.
4308 Groups that are displayed can be entered with `\\[gnus-group-read-group]'. To subscribe
4309 to a group not displayed, type `\\[gnus-group-unsubscribe-group]'.
4311 For more in-depth information on this mode, read the manual (`\\[gnus-info-find-node]').
4313 The following commands are available:
4315 \\{gnus-group-mode-map}"
4316 (interactive)
4317 (when (and menu-bar-mode
4318 (gnus-visual-p 'group-menu 'menu))
4319 (gnus-group-make-menu-bar))
4320 (kill-all-local-variables)
4321 (gnus-simplify-mode-line)
4322 (setq major-mode 'gnus-group-mode)
4323 (setq mode-name "Group")
4324 (gnus-group-set-mode-line)
4325 (setq mode-line-process nil)
4326 (use-local-map gnus-group-mode-map)
4327 (buffer-disable-undo (current-buffer))
4328 (setq truncate-lines t)
4329 (setq buffer-read-only t)
4330 (gnus-make-local-hook 'post-command-hook)
4331 (gnus-add-hook 'post-command-hook 'gnus-clear-inboxes-moved nil t)
4332 (run-hooks 'gnus-group-mode-hook))
4334 (defun gnus-clear-inboxes-moved ()
4335 (setq nnmail-moved-inboxes nil))
4337 (defun gnus-mouse-pick-group (e)
4338 "Enter the group under the mouse pointer."
4339 (interactive "e")
4340 (mouse-set-point e)
4341 (gnus-group-read-group nil))
4343 ;; Look at LEVEL and find out what the level is really supposed to be.
4344 ;; If LEVEL is non-nil, LEVEL will be returned, if not, what happens
4345 ;; will depend on whether `gnus-group-use-permanent-levels' is used.
4346 (defun gnus-group-default-level (&optional level number-or-nil)
4347 (cond
4348 (gnus-group-use-permanent-levels
4349 (or (setq gnus-group-use-permanent-levels
4350 (or level (if (numberp gnus-group-use-permanent-levels)
4351 gnus-group-use-permanent-levels
4352 (or gnus-group-default-list-level
4353 gnus-level-subscribed))))
4354 gnus-group-default-list-level gnus-level-subscribed))
4355 (number-or-nil
4356 level)
4358 (or level gnus-group-default-list-level gnus-level-subscribed))))
4360 ;;;###autoload
4361 (defun gnus-slave-no-server (&optional arg)
4362 "Read network news as a slave, without connecting to local server"
4363 (interactive "P")
4364 (gnus-no-server arg t))
4366 ;;;###autoload
4367 (defun gnus-no-server (&optional arg slave)
4368 "Read network news.
4369 If ARG is a positive number, Gnus will use that as the
4370 startup level. If ARG is nil, Gnus will be started at level 2.
4371 If ARG is non-nil and not a positive number, Gnus will
4372 prompt the user for the name of an NNTP server to use.
4373 As opposed to `gnus', this command will not connect to the local server."
4374 (interactive "P")
4375 (let ((val (or arg (1- gnus-level-default-subscribed))))
4376 (gnus val t slave)
4377 (make-local-variable 'gnus-group-use-permanent-levels)
4378 (setq gnus-group-use-permanent-levels val)))
4380 ;;;###autoload
4381 (defun gnus-slave (&optional arg)
4382 "Read news as a slave."
4383 (interactive "P")
4384 (gnus arg nil 'slave))
4386 ;;;###autoload
4387 (defun gnus-other-frame (&optional arg)
4388 "Pop up a frame to read news."
4389 (interactive "P")
4390 (if (get-buffer gnus-group-buffer)
4391 (let ((pop-up-frames t))
4392 (gnus arg))
4393 (select-frame (make-frame))
4394 (gnus arg)))
4396 ;;;###autoload
4397 (defun gnus (&optional arg dont-connect slave)
4398 "Read network news.
4399 If ARG is non-nil and a positive number, Gnus will use that as the
4400 startup level. If ARG is non-nil and not a positive number, Gnus will
4401 prompt the user for the name of an NNTP server to use."
4402 (interactive "P")
4404 (if (get-buffer gnus-group-buffer)
4405 (progn
4406 (switch-to-buffer gnus-group-buffer)
4407 (gnus-group-get-new-news))
4409 (gnus-clear-system)
4410 (nnheader-init-server-buffer)
4411 (gnus-read-init-file)
4412 (setq gnus-slave slave)
4414 (gnus-group-setup-buffer)
4415 (let ((buffer-read-only nil))
4416 (erase-buffer)
4417 (if (not gnus-inhibit-startup-message)
4418 (progn
4419 (gnus-group-startup-message)
4420 (sit-for 0))))
4422 (let ((level (and (numberp arg) (> arg 0) arg))
4423 did-connect)
4424 (unwind-protect
4425 (progn
4426 (or dont-connect
4427 (setq did-connect
4428 (gnus-start-news-server (and arg (not level))))))
4429 (if (and (not dont-connect)
4430 (not did-connect))
4431 (gnus-group-quit)
4432 (run-hooks 'gnus-startup-hook)
4433 ;; NNTP server is successfully open.
4435 ;; Find the current startup file name.
4436 (setq gnus-current-startup-file
4437 (gnus-make-newsrc-file gnus-startup-file))
4439 ;; Read the dribble file.
4440 (when (or gnus-slave gnus-use-dribble-file)
4441 (gnus-dribble-read-file))
4443 ;; Allow using GroupLens predictions.
4444 (when gnus-use-grouplens
4445 (bbb-login)
4446 (add-hook 'gnus-summary-mode-hook 'gnus-grouplens-mode))
4448 (gnus-summary-make-display-table)
4449 ;; Do the actual startup.
4450 (gnus-setup-news nil level dont-connect)
4451 ;; Generate the group buffer.
4452 (gnus-group-list-groups level)
4453 (gnus-group-first-unread-group)
4454 (gnus-configure-windows 'group)
4455 (gnus-group-set-mode-line))))))
4457 (defun gnus-unload ()
4458 "Unload all Gnus features."
4459 (interactive)
4460 (or (boundp 'load-history)
4461 (error "Sorry, `gnus-unload' is not implemented in this Emacs version."))
4462 (let ((history load-history)
4463 feature)
4464 (while history
4465 (and (string-match "^\\(gnus\\|nn\\)" (caar history))
4466 (setq feature (cdr (assq 'provide (car history))))
4467 (unload-feature feature 'force))
4468 (setq history (cdr history)))))
4470 (defun gnus-compile ()
4471 "Byte-compile the user-defined format specs."
4472 (interactive)
4473 (let ((entries gnus-format-specs)
4474 entry gnus-tmp-func)
4475 (save-excursion
4476 (gnus-message 7 "Compiling format specs...")
4478 (while entries
4479 (setq entry (pop entries))
4480 (if (eq (car entry) 'version)
4481 (setq gnus-format-specs (delq entry gnus-format-specs))
4482 (when (and (listp (caddr entry))
4483 (not (eq 'byte-code (caaddr entry))))
4484 (fset 'gnus-tmp-func
4485 `(lambda () ,(caddr entry)))
4486 (byte-compile 'gnus-tmp-func)
4487 (setcar (cddr entry) (gnus-byte-code 'gnus-tmp-func)))))
4489 (push (cons 'version emacs-version) gnus-format-specs)
4491 (gnus-message 7 "Compiling user specs...done"))))
4493 (defun gnus-indent-rigidly (start end arg)
4494 "Indent rigidly using only spaces and no tabs."
4495 (save-excursion
4496 (save-restriction
4497 (narrow-to-region start end)
4498 (indent-rigidly start end arg)
4499 (goto-char (point-min))
4500 (while (search-forward "\t" nil t)
4501 (replace-match " " t t)))))
4503 (defun gnus-group-startup-message (&optional x y)
4504 "Insert startup message in current buffer."
4505 ;; Insert the message.
4506 (erase-buffer)
4507 (insert
4508 (format " %s
4509 _ ___ _ _
4510 _ ___ __ ___ __ _ ___
4511 __ _ ___ __ ___
4512 _ ___ _
4513 _ _ __ _
4514 ___ __ _
4515 __ _
4516 _ _ _
4517 _ _ _
4518 _ _ _
4519 __ ___
4520 _ _ _ _
4528 ""))
4529 ;; And then hack it.
4530 (gnus-indent-rigidly (point-min) (point-max)
4531 (/ (max (- (window-width) (or x 46)) 0) 2))
4532 (goto-char (point-min))
4533 (forward-line 1)
4534 (let* ((pheight (count-lines (point-min) (point-max)))
4535 (wheight (window-height))
4536 (rest (- wheight pheight)))
4537 (insert (make-string (max 0 (* 2 (/ rest 3))) ?\n)))
4538 ;; Fontify some.
4539 (goto-char (point-min))
4540 (and (search-forward "Praxis" nil t)
4541 (gnus-put-text-property (match-beginning 0) (match-end 0) 'face 'bold))
4542 (goto-char (point-min))
4543 (let* ((mode-string (gnus-group-set-mode-line)))
4544 (setq mode-line-buffer-identification
4545 (list (concat gnus-version (substring (car mode-string) 4))))
4546 (set-buffer-modified-p t)))
4548 (defun gnus-group-setup-buffer ()
4549 (or (get-buffer gnus-group-buffer)
4550 (progn
4551 (switch-to-buffer gnus-group-buffer)
4552 (gnus-add-current-to-buffer-list)
4553 (gnus-group-mode)
4554 (and gnus-carpal (gnus-carpal-setup-buffer 'group)))))
4556 (defun gnus-group-list-groups (&optional level unread lowest)
4557 "List newsgroups with level LEVEL or lower that have unread articles.
4558 Default is all subscribed groups.
4559 If argument UNREAD is non-nil, groups with no unread articles are also
4560 listed."
4561 (interactive (list (if current-prefix-arg
4562 (prefix-numeric-value current-prefix-arg)
4564 (gnus-group-default-level nil t)
4565 gnus-group-default-list-level
4566 gnus-level-subscribed))))
4567 (or level
4568 (setq level (car gnus-group-list-mode)
4569 unread (cdr gnus-group-list-mode)))
4570 (setq level (gnus-group-default-level level))
4571 (gnus-group-setup-buffer) ;May call from out of group buffer
4572 (gnus-update-format-specifications)
4573 (let ((case-fold-search nil)
4574 (props (text-properties-at (gnus-point-at-bol)))
4575 (group (gnus-group-group-name)))
4576 (set-buffer gnus-group-buffer)
4577 (funcall gnus-group-prepare-function level unread lowest)
4578 (if (zerop (buffer-size))
4579 (gnus-message 5 gnus-no-groups-message)
4580 (goto-char (point-max))
4581 (when (or (not gnus-group-goto-next-group-function)
4582 (not (funcall gnus-group-goto-next-group-function
4583 group props)))
4584 (if (not group)
4585 ;; Go to the first group with unread articles.
4586 (gnus-group-search-forward t)
4587 ;; Find the right group to put point on. If the current group
4588 ;; has disappeared in the new listing, try to find the next
4589 ;; one. If no next one can be found, just leave point at the
4590 ;; first newsgroup in the buffer.
4591 (if (not (gnus-goto-char
4592 (text-property-any
4593 (point-min) (point-max)
4594 'gnus-group (gnus-intern-safe group gnus-active-hashtb))))
4595 (let ((newsrc (cdddr (gnus-gethash group gnus-newsrc-hashtb))))
4596 (while (and newsrc
4597 (not (gnus-goto-char
4598 (text-property-any
4599 (point-min) (point-max) 'gnus-group
4600 (gnus-intern-safe
4601 (caar newsrc) gnus-active-hashtb)))))
4602 (setq newsrc (cdr newsrc)))
4603 (or newsrc (progn (goto-char (point-max))
4604 (forward-line -1)))))))
4605 ;; Adjust cursor point.
4606 (gnus-group-position-point))))
4608 (defun gnus-group-list-level (level &optional all)
4609 "List groups on LEVEL.
4610 If ALL (the prefix), also list groups that have no unread articles."
4611 (interactive "nList groups on level: \nP")
4612 (gnus-group-list-groups level all level))
4614 (defun gnus-group-prepare-flat (level &optional all lowest regexp)
4615 "List all newsgroups with unread articles of level LEVEL or lower.
4616 If ALL is non-nil, list groups that have no unread articles.
4617 If LOWEST is non-nil, list all newsgroups of level LOWEST or higher.
4618 If REGEXP, only list groups matching REGEXP."
4619 (set-buffer gnus-group-buffer)
4620 (let ((buffer-read-only nil)
4621 (newsrc (cdr gnus-newsrc-alist))
4622 (lowest (or lowest 1))
4623 info clevel unread group params)
4624 (erase-buffer)
4625 (if (< lowest gnus-level-zombie)
4626 ;; List living groups.
4627 (while newsrc
4628 (setq info (car newsrc)
4629 group (gnus-info-group info)
4630 params (gnus-info-params info)
4631 newsrc (cdr newsrc)
4632 unread (car (gnus-gethash group gnus-newsrc-hashtb)))
4633 (and unread ; This group might be bogus
4634 (or (not regexp)
4635 (string-match regexp group))
4636 (<= (setq clevel (gnus-info-level info)) level)
4637 (>= clevel lowest)
4638 (or all ; We list all groups?
4639 (if (eq unread t) ; Unactivated?
4640 gnus-group-list-inactive-groups ; We list unactivated
4641 (> unread 0)) ; We list groups with unread articles
4642 (and gnus-list-groups-with-ticked-articles
4643 (cdr (assq 'tick (gnus-info-marks info))))
4644 ; And groups with tickeds
4645 ;; Check for permanent visibility.
4646 (and gnus-permanently-visible-groups
4647 (string-match gnus-permanently-visible-groups
4648 group))
4649 (memq 'visible params)
4650 (cdr (assq 'visible params)))
4651 (gnus-group-insert-group-line
4652 group (gnus-info-level info)
4653 (gnus-info-marks info) unread (gnus-info-method info)))))
4655 ;; List dead groups.
4656 (and (>= level gnus-level-zombie) (<= lowest gnus-level-zombie)
4657 (gnus-group-prepare-flat-list-dead
4658 (setq gnus-zombie-list (sort gnus-zombie-list 'string<))
4659 gnus-level-zombie ?Z
4660 regexp))
4661 (and (>= level gnus-level-killed) (<= lowest gnus-level-killed)
4662 (gnus-group-prepare-flat-list-dead
4663 (setq gnus-killed-list (sort gnus-killed-list 'string<))
4664 gnus-level-killed ?K regexp))
4666 (gnus-group-set-mode-line)
4667 (setq gnus-group-list-mode (cons level all))
4668 (run-hooks 'gnus-group-prepare-hook)))
4670 (defun gnus-group-prepare-flat-list-dead (groups level mark regexp)
4671 ;; List zombies and killed lists somewhat faster, which was
4672 ;; suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>. It does
4673 ;; this by ignoring the group format specification altogether.
4674 (let (group)
4675 (if regexp
4676 ;; This loop is used when listing groups that match some
4677 ;; regexp.
4678 (while groups
4679 (setq group (pop groups))
4680 (when (string-match regexp group)
4681 (gnus-add-text-properties
4682 (point) (prog1 (1+ (point))
4683 (insert " " mark " *: " group "\n"))
4684 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
4685 'gnus-unread t
4686 'gnus-level level))))
4687 ;; This loop is used when listing all groups.
4688 (while groups
4689 (gnus-add-text-properties
4690 (point) (prog1 (1+ (point))
4691 (insert " " mark " *: "
4692 (setq group (pop groups)) "\n"))
4693 (list 'gnus-group (gnus-intern-safe group gnus-active-hashtb)
4694 'gnus-unread t
4695 'gnus-level level))))))
4697 (defmacro gnus-group-real-name (group)
4698 "Find the real name of a foreign newsgroup."
4699 `(let ((gname ,group))
4700 (if (string-match ":[^:]+$" gname)
4701 (substring gname (1+ (match-beginning 0)))
4702 gname)))
4704 (defsubst gnus-server-add-address (method)
4705 (let ((method-name (symbol-name (car method))))
4706 (if (and (memq 'address (assoc method-name gnus-valid-select-methods))
4707 (not (assq (intern (concat method-name "-address")) method)))
4708 (append method (list (list (intern (concat method-name "-address"))
4709 (nth 1 method))))
4710 method)))
4712 (defsubst gnus-server-get-method (group method)
4713 ;; Input either a server name, and extended server name, or a
4714 ;; select method, and return a select method.
4715 (cond ((stringp method)
4716 (gnus-server-to-method method))
4717 ((equal method gnus-select-method)
4718 gnus-select-method)
4719 ((and (stringp (car method)) group)
4720 (gnus-server-extend-method group method))
4721 ((and method (not group)
4722 (equal (cadr method) ""))
4723 method)
4725 (gnus-server-add-address method))))
4727 (defun gnus-server-to-method (server)
4728 "Map virtual server names to select methods."
4729 (or
4730 ;; Is this a method, perhaps?
4731 (and server (listp server) server)
4732 ;; Perhaps this is the native server?
4733 (and (equal server "native") gnus-select-method)
4734 ;; It should be in the server alist.
4735 (cdr (assoc server gnus-server-alist))
4736 ;; If not, we look through all the opened server
4737 ;; to see whether we can find it there.
4738 (let ((opened gnus-opened-servers))
4739 (while (and opened
4740 (not (equal server (format "%s:%s" (caaar opened)
4741 (cadaar opened)))))
4742 (pop opened))
4743 (caar opened))))
4745 (defmacro gnus-method-equal (ss1 ss2)
4746 "Say whether two servers are equal."
4747 `(let ((s1 ,ss1)
4748 (s2 ,ss2))
4749 (or (equal s1 s2)
4750 (and (= (length s1) (length s2))
4751 (progn
4752 (while (and s1 (member (car s1) s2))
4753 (setq s1 (cdr s1)))
4754 (null s1))))))
4756 (defun gnus-server-equal (m1 m2)
4757 "Say whether two methods are equal."
4758 (let ((m1 (cond ((null m1) gnus-select-method)
4759 ((stringp m1) (gnus-server-to-method m1))
4760 (t m1)))
4761 (m2 (cond ((null m2) gnus-select-method)
4762 ((stringp m2) (gnus-server-to-method m2))
4763 (t m2))))
4764 (gnus-method-equal m1 m2)))
4766 (defun gnus-servers-using-backend (backend)
4767 "Return a list of known servers using BACKEND."
4768 (let ((opened gnus-opened-servers)
4769 out)
4770 (while opened
4771 (when (eq backend (caaar opened))
4772 (push (caar opened) out))
4773 (pop opened))
4774 out))
4776 (defun gnus-archive-server-wanted-p ()
4777 "Say whether the user wants to use the archive server."
4778 (cond
4779 ((or (not gnus-message-archive-method)
4780 (not gnus-message-archive-group))
4781 nil)
4782 ((and gnus-message-archive-method gnus-message-archive-group)
4785 (let ((active (cadr (assq 'nnfolder-active-file
4786 gnus-message-archive-method))))
4787 (and active
4788 (file-exists-p active))))))
4790 (defun gnus-group-prefixed-name (group method)
4791 "Return the whole name from GROUP and METHOD."
4792 (and (stringp method) (setq method (gnus-server-to-method method)))
4793 (concat (format "%s" (car method))
4794 (if (and
4795 (or (assoc (format "%s" (car method))
4796 (gnus-methods-using 'address))
4797 (gnus-server-equal method gnus-message-archive-method))
4798 (nth 1 method)
4799 (not (string= (nth 1 method) "")))
4800 (concat "+" (nth 1 method)))
4801 ":" group))
4803 (defun gnus-group-real-prefix (group)
4804 "Return the prefix of the current group name."
4805 (if (string-match "^[^:]+:" group)
4806 (substring group 0 (match-end 0))
4807 ""))
4809 (defun gnus-group-method (group)
4810 "Return the server or method used for selecting GROUP."
4811 (let ((prefix (gnus-group-real-prefix group)))
4812 (if (equal prefix "")
4813 gnus-select-method
4814 (let ((servers gnus-opened-servers)
4815 (server "")
4816 backend possible found)
4817 (if (string-match "^[^\\+]+\\+" prefix)
4818 (setq backend (intern (substring prefix 0 (1- (match-end 0))))
4819 server (substring prefix (match-end 0) (1- (length prefix))))
4820 (setq backend (intern (substring prefix 0 (1- (length prefix))))))
4821 (while servers
4822 (when (eq (caaar servers) backend)
4823 (setq possible (caar servers))
4824 (when (equal (cadaar servers) server)
4825 (setq found (caar servers))))
4826 (pop servers))
4827 (or (car (rassoc found gnus-server-alist))
4828 found
4829 (car (rassoc possible gnus-server-alist))
4830 possible
4831 (list backend server))))))
4833 (defsubst gnus-secondary-method-p (method)
4834 "Return whether METHOD is a secondary select method."
4835 (let ((methods gnus-secondary-select-methods)
4836 (gmethod (gnus-server-get-method nil method)))
4837 (while (and methods
4838 (not (equal (gnus-server-get-method nil (car methods))
4839 gmethod)))
4840 (setq methods (cdr methods)))
4841 methods))
4843 (defun gnus-group-foreign-p (group)
4844 "Say whether a group is foreign or not."
4845 (and (not (gnus-group-native-p group))
4846 (not (gnus-group-secondary-p group))))
4848 (defun gnus-group-native-p (group)
4849 "Say whether the group is native or not."
4850 (not (string-match ":" group)))
4852 (defun gnus-group-secondary-p (group)
4853 "Say whether the group is secondary or not."
4854 (gnus-secondary-method-p (gnus-find-method-for-group group)))
4856 (defun gnus-group-get-parameter (group &optional symbol)
4857 "Returns the group parameters for GROUP.
4858 If SYMBOL, return the value of that symbol in the group parameters."
4859 (let ((params (gnus-info-params (gnus-get-info group))))
4860 (if symbol
4861 (gnus-group-parameter-value params symbol)
4862 params)))
4864 (defun gnus-group-parameter-value (params symbol)
4865 "Return the value of SYMBOL in group PARAMS."
4866 (or (car (memq symbol params)) ; It's either a simple symbol
4867 (cdr (assq symbol params)))) ; or a cons.
4869 (defun gnus-group-add-parameter (group param)
4870 "Add parameter PARAM to GROUP."
4871 (let ((info (gnus-get-info group)))
4872 (if (not info)
4873 () ; This is a dead group. We just ignore it.
4874 ;; Cons the new param to the old one and update.
4875 (gnus-group-set-info (cons param (gnus-info-params info))
4876 group 'params))))
4878 (defun gnus-group-set-parameter (group name value)
4879 "Set parameter NAME to VALUE in GROUP."
4880 (let ((info (gnus-get-info group)))
4881 (if (not info)
4882 () ; This is a dead group. We just ignore it.
4883 (let ((old-params (gnus-info-params info))
4884 (new-params (list (cons name value))))
4885 (while old-params
4886 (if (or (not (listp (car old-params)))
4887 (not (eq (caar old-params) name)))
4888 (setq new-params (append new-params (list (car old-params)))))
4889 (setq old-params (cdr old-params)))
4890 (gnus-group-set-info new-params group 'params)))))
4892 (defun gnus-group-add-score (group &optional score)
4893 "Add SCORE to the GROUP score.
4894 If SCORE is nil, add 1 to the score of GROUP."
4895 (let ((info (gnus-get-info group)))
4896 (when info
4897 (gnus-info-set-score info (+ (gnus-info-score info) (or score 1))))))
4899 (defun gnus-summary-bubble-group ()
4900 "Increase the score of the current group.
4901 This is a handy function to add to `gnus-summary-exit-hook' to
4902 increase the score of each group you read."
4903 (gnus-group-add-score gnus-newsgroup-name))
4905 (defun gnus-group-set-info (info &optional method-only-group part)
4906 (let* ((entry (gnus-gethash
4907 (or method-only-group (gnus-info-group info))
4908 gnus-newsrc-hashtb))
4909 (part-info info)
4910 (info (if method-only-group (nth 2 entry) info))
4911 method)
4912 (when method-only-group
4913 (unless entry
4914 (error "Trying to change non-existent group %s" method-only-group))
4915 ;; We have received parts of the actual group info - either the
4916 ;; select method or the group parameters. We first check
4917 ;; whether we have to extend the info, and if so, do that.
4918 (let ((len (length info))
4919 (total (if (eq part 'method) 5 6)))
4920 (when (< len total)
4921 (setcdr (nthcdr (1- len) info)
4922 (make-list (- total len) nil)))
4923 ;; Then we enter the new info.
4924 (setcar (nthcdr (1- total) info) part-info)))
4925 (unless entry
4926 ;; This is a new group, so we just create it.
4927 (save-excursion
4928 (set-buffer gnus-group-buffer)
4929 (setq method (gnus-info-method info))
4930 (when (gnus-server-equal method "native")
4931 (setq method nil))
4932 (save-excursion
4933 (set-buffer gnus-group-buffer)
4934 (if method
4935 ;; It's a foreign group...
4936 (gnus-group-make-group
4937 (gnus-group-real-name (gnus-info-group info))
4938 (if (stringp method) method
4939 (prin1-to-string (car method)))
4940 (and (consp method)
4941 (nth 1 (gnus-info-method info))))
4942 ;; It's a native group.
4943 (gnus-group-make-group (gnus-info-group info))))
4944 (gnus-message 6 "Note: New group created")
4945 (setq entry
4946 (gnus-gethash (gnus-group-prefixed-name
4947 (gnus-group-real-name (gnus-info-group info))
4948 (or (gnus-info-method info) gnus-select-method))
4949 gnus-newsrc-hashtb))))
4950 ;; Whether it was a new group or not, we now have the entry, so we
4951 ;; can do the update.
4952 (if entry
4953 (progn
4954 (setcar (nthcdr 2 entry) info)
4955 (when (and (not (eq (car entry) t))
4956 (gnus-active (gnus-info-group info)))
4957 (setcar entry (length (gnus-list-of-unread-articles (car info))))))
4958 (error "No such group: %s" (gnus-info-group info)))))
4960 (defun gnus-group-set-method-info (group select-method)
4961 (gnus-group-set-info select-method group 'method))
4963 (defun gnus-group-set-params-info (group params)
4964 (gnus-group-set-info params group 'params))
4966 (defun gnus-group-update-group-line ()
4967 "Update the current line in the group buffer."
4968 (let* ((buffer-read-only nil)
4969 (group (gnus-group-group-name))
4970 (entry (and group (gnus-gethash group gnus-newsrc-hashtb)))
4971 gnus-group-indentation)
4972 (when group
4973 (and entry
4974 (not (gnus-ephemeral-group-p group))
4975 (gnus-dribble-enter
4976 (concat "(gnus-group-set-info '"
4977 (prin1-to-string (nth 2 entry)) ")")))
4978 (setq gnus-group-indentation (gnus-group-group-indentation))
4979 (gnus-delete-line)
4980 (gnus-group-insert-group-line-info group)
4981 (forward-line -1)
4982 (gnus-group-position-point))))
4984 (defun gnus-group-insert-group-line-info (group)
4985 "Insert GROUP on the current line."
4986 (let ((entry (gnus-gethash group gnus-newsrc-hashtb))
4987 active info)
4988 (if entry
4989 (progn
4990 ;; (Un)subscribed group.
4991 (setq info (nth 2 entry))
4992 (gnus-group-insert-group-line
4993 group (gnus-info-level info) (gnus-info-marks info)
4994 (or (car entry) t) (gnus-info-method info)))
4995 ;; This group is dead.
4996 (gnus-group-insert-group-line
4997 group
4998 (if (member group gnus-zombie-list) gnus-level-zombie gnus-level-killed)
5000 (if (setq active (gnus-active group))
5001 (- (1+ (cdr active)) (car active)) 0)
5002 nil))))
5004 (defun gnus-group-insert-group-line (gnus-tmp-group gnus-tmp-level
5005 gnus-tmp-marked number
5006 gnus-tmp-method)
5007 "Insert a group line in the group buffer."
5008 (let* ((gnus-tmp-active (gnus-active gnus-tmp-group))
5009 (gnus-tmp-number-total
5010 (if gnus-tmp-active
5011 (1+ (- (cdr gnus-tmp-active) (car gnus-tmp-active)))
5013 (gnus-tmp-number-of-unread
5014 (if (numberp number) (int-to-string (max 0 number))
5015 "*"))
5016 (gnus-tmp-number-of-read
5017 (if (numberp number)
5018 (int-to-string (max 0 (- gnus-tmp-number-total number)))
5019 "*"))
5020 (gnus-tmp-subscribed
5021 (cond ((<= gnus-tmp-level gnus-level-subscribed) ? )
5022 ((<= gnus-tmp-level gnus-level-unsubscribed) ?U)
5023 ((= gnus-tmp-level gnus-level-zombie) ?Z)
5024 (t ?K)))
5025 (gnus-tmp-qualified-group (gnus-group-real-name gnus-tmp-group))
5026 (gnus-tmp-newsgroup-description
5027 (if gnus-description-hashtb
5028 (or (gnus-gethash gnus-tmp-group gnus-description-hashtb) "")
5029 ""))
5030 (gnus-tmp-moderated
5031 (if (member gnus-tmp-group gnus-moderated-list) ?m ? ))
5032 (gnus-tmp-moderated-string
5033 (if (eq gnus-tmp-moderated ?m) "(m)" ""))
5034 (gnus-tmp-method
5035 (gnus-server-get-method gnus-tmp-group gnus-tmp-method))
5036 (gnus-tmp-news-server (or (cadr gnus-tmp-method) ""))
5037 (gnus-tmp-news-method (or (car gnus-tmp-method) ""))
5038 (gnus-tmp-news-method-string
5039 (if gnus-tmp-method
5040 (format "(%s:%s)" (car gnus-tmp-method)
5041 (cadr gnus-tmp-method)) ""))
5042 (gnus-tmp-marked-mark
5043 (if (and (numberp number)
5044 (zerop number)
5045 (cdr (assq 'tick gnus-tmp-marked)))
5046 ?* ? ))
5047 (gnus-tmp-process-marked
5048 (if (member gnus-tmp-group gnus-group-marked)
5049 gnus-process-mark ? ))
5050 (gnus-tmp-grouplens
5051 (or (and gnus-use-grouplens
5052 (bbb-grouplens-group-p gnus-tmp-group))
5053 ""))
5054 (buffer-read-only nil)
5055 header gnus-tmp-header) ; passed as parameter to user-funcs.
5056 (beginning-of-line)
5057 (gnus-add-text-properties
5058 (point)
5059 (prog1 (1+ (point))
5060 ;; Insert the text.
5061 (eval gnus-group-line-format-spec))
5062 `(gnus-group ,(gnus-intern-safe gnus-tmp-group gnus-active-hashtb)
5063 gnus-unread ,(if (numberp number)
5064 (string-to-int gnus-tmp-number-of-unread)
5066 gnus-marked ,gnus-tmp-marked-mark
5067 gnus-indentation ,gnus-group-indentation
5068 gnus-level ,gnus-tmp-level))
5069 (when (inline (gnus-visual-p 'group-highlight 'highlight))
5070 (forward-line -1)
5071 (run-hooks 'gnus-group-update-hook)
5072 (forward-line))
5073 ;; Allow XEmacs to remove front-sticky text properties.
5074 (gnus-group-remove-excess-properties)))
5076 (defun gnus-group-update-group (group &optional visible-only)
5077 "Update all lines where GROUP appear.
5078 If VISIBLE-ONLY is non-nil, the group won't be displayed if it isn't
5079 already."
5080 (save-excursion
5081 (set-buffer gnus-group-buffer)
5082 ;; The buffer may be narrowed.
5083 (save-restriction
5084 (widen)
5085 (let ((ident (gnus-intern-safe group gnus-active-hashtb))
5086 (loc (point-min))
5087 found buffer-read-only)
5088 ;; Enter the current status into the dribble buffer.
5089 (let ((entry (gnus-gethash group gnus-newsrc-hashtb)))
5090 (if (and entry (not (gnus-ephemeral-group-p group)))
5091 (gnus-dribble-enter
5092 (concat "(gnus-group-set-info '" (prin1-to-string (nth 2 entry))
5093 ")"))))
5094 ;; Find all group instances. If topics are in use, each group
5095 ;; may be listed in more than once.
5096 (while (setq loc (text-property-any
5097 loc (point-max) 'gnus-group ident))
5098 (setq found t)
5099 (goto-char loc)
5100 (let ((gnus-group-indentation (gnus-group-group-indentation)))
5101 (gnus-delete-line)
5102 (gnus-group-insert-group-line-info group)
5103 (save-excursion
5104 (forward-line -1)
5105 (run-hooks 'gnus-group-update-group-hook)))
5106 (setq loc (1+ loc)))
5107 (unless (or found visible-only)
5108 ;; No such line in the buffer, find out where it's supposed to
5109 ;; go, and insert it there (or at the end of the buffer).
5110 (if gnus-goto-missing-group-function
5111 (funcall gnus-goto-missing-group-function group)
5112 (let ((entry (cddr (gnus-gethash group gnus-newsrc-hashtb))))
5113 (while (and entry (car entry)
5114 (not
5115 (gnus-goto-char
5116 (text-property-any
5117 (point-min) (point-max)
5118 'gnus-group (gnus-intern-safe
5119 (caar entry) gnus-active-hashtb)))))
5120 (setq entry (cdr entry)))
5121 (or entry (goto-char (point-max)))))
5122 ;; Finally insert the line.
5123 (let ((gnus-group-indentation (gnus-group-group-indentation)))
5124 (gnus-group-insert-group-line-info group)
5125 (save-excursion
5126 (forward-line -1)
5127 (run-hooks 'gnus-group-update-group-hook))))
5128 (gnus-group-set-mode-line)))))
5130 (defun gnus-group-set-mode-line ()
5131 "Update the mode line in the group buffer."
5132 (when (memq 'group gnus-updated-mode-lines)
5133 ;; Yes, we want to keep this mode line updated.
5134 (save-excursion
5135 (set-buffer gnus-group-buffer)
5136 (let* ((gformat (or gnus-group-mode-line-format-spec
5137 (setq gnus-group-mode-line-format-spec
5138 (gnus-parse-format
5139 gnus-group-mode-line-format
5140 gnus-group-mode-line-format-alist))))
5141 (gnus-tmp-news-server (cadr gnus-select-method))
5142 (gnus-tmp-news-method (car gnus-select-method))
5143 (gnus-tmp-colon (if (equal gnus-tmp-news-server "") "" ":"))
5144 (max-len 60)
5145 gnus-tmp-header ;Dummy binding for user-defined formats
5146 ;; Get the resulting string.
5147 (modified
5148 (and gnus-dribble-buffer
5149 (buffer-name gnus-dribble-buffer)
5150 (buffer-modified-p gnus-dribble-buffer)
5151 (save-excursion
5152 (set-buffer gnus-dribble-buffer)
5153 (not (zerop (buffer-size))))))
5154 (mode-string (eval gformat)))
5155 ;; Say whether the dribble buffer has been modified.
5156 (setq mode-line-modified
5157 (if modified "---*- " "----- "))
5158 ;; If the line is too long, we chop it off.
5159 (when (> (length mode-string) max-len)
5160 (setq mode-string (substring mode-string 0 (- max-len 4))))
5161 (prog1
5162 (setq mode-line-buffer-identification
5163 (gnus-mode-line-buffer-identification
5164 (list mode-string)))
5165 (set-buffer-modified-p modified))))))
5167 (defun gnus-group-group-name ()
5168 "Get the name of the newsgroup on the current line."
5169 (let ((group (get-text-property (gnus-point-at-bol) 'gnus-group)))
5170 (and group (symbol-name group))))
5172 (defun gnus-group-group-level ()
5173 "Get the level of the newsgroup on the current line."
5174 (get-text-property (gnus-point-at-bol) 'gnus-level))
5176 (defun gnus-group-group-indentation ()
5177 "Get the indentation of the newsgroup on the current line."
5178 (or (get-text-property (gnus-point-at-bol) 'gnus-indentation)
5179 (and gnus-group-indentation-function
5180 (funcall gnus-group-indentation-function))
5181 ""))
5183 (defun gnus-group-group-unread ()
5184 "Get the number of unread articles of the newsgroup on the current line."
5185 (get-text-property (gnus-point-at-bol) 'gnus-unread))
5187 (defun gnus-group-search-forward (&optional backward all level first-too)
5188 "Find the next newsgroup with unread articles.
5189 If BACKWARD is non-nil, find the previous newsgroup instead.
5190 If ALL is non-nil, just find any newsgroup.
5191 If LEVEL is non-nil, find group with level LEVEL, or higher if no such
5192 group exists.
5193 If FIRST-TOO, the current line is also eligible as a target."
5194 (let ((way (if backward -1 1))
5195 (low gnus-level-killed)
5196 (beg (point))
5197 pos found lev)
5198 (if (and backward (progn (beginning-of-line)) (bobp))
5200 (or first-too (forward-line way))
5201 (while (and
5202 (not (eobp))
5203 (not (setq
5204 found
5205 (and (or all
5206 (and
5207 (let ((unread
5208 (get-text-property (point) 'gnus-unread)))
5209 (and (numberp unread) (> unread 0)))
5210 (setq lev (get-text-property (point)
5211 'gnus-level))
5212 (<= lev gnus-level-subscribed)))
5213 (or (not level)
5214 (and (setq lev (get-text-property (point)
5215 'gnus-level))
5216 (or (= lev level)
5217 (and (< lev low)
5218 (< level lev)
5219 (progn
5220 (setq low lev)
5221 (setq pos (point))
5222 nil))))))))
5223 (zerop (forward-line way)))))
5224 (if found
5225 (progn (gnus-group-position-point) t)
5226 (goto-char (or pos beg))
5227 (and pos t))))
5229 ;;; Gnus group mode commands
5231 ;; Group marking.
5233 (defun gnus-group-mark-group (n &optional unmark no-advance)
5234 "Mark the current group."
5235 (interactive "p")
5236 (let ((buffer-read-only nil)
5237 group)
5238 (while (and (> n 0)
5239 (not (eobp)))
5240 (when (setq group (gnus-group-group-name))
5241 ;; Update the mark.
5242 (beginning-of-line)
5243 (forward-char
5244 (or (cdr (assq 'process gnus-group-mark-positions)) 2))
5245 (delete-char 1)
5246 (if unmark
5247 (progn
5248 (insert " ")
5249 (setq gnus-group-marked (delete group gnus-group-marked)))
5250 (insert "#")
5251 (setq gnus-group-marked
5252 (cons group (delete group gnus-group-marked)))))
5253 (or no-advance (gnus-group-next-group 1))
5254 (decf n))
5255 (gnus-summary-position-point)
5258 (defun gnus-group-unmark-group (n)
5259 "Remove the mark from the current group."
5260 (interactive "p")
5261 (gnus-group-mark-group n 'unmark)
5262 (gnus-group-position-point))
5264 (defun gnus-group-unmark-all-groups ()
5265 "Unmark all groups."
5266 (interactive)
5267 (let ((groups gnus-group-marked))
5268 (save-excursion
5269 (while groups
5270 (gnus-group-remove-mark (pop groups)))))
5271 (gnus-group-position-point))
5273 (defun gnus-group-mark-region (unmark beg end)
5274 "Mark all groups between point and mark.
5275 If UNMARK, remove the mark instead."
5276 (interactive "P\nr")
5277 (let ((num (count-lines beg end)))
5278 (save-excursion
5279 (goto-char beg)
5280 (- num (gnus-group-mark-group num unmark)))))
5282 (defun gnus-group-mark-buffer (&optional unmark)
5283 "Mark all groups in the buffer.
5284 If UNMARK, remove the mark instead."
5285 (interactive "P")
5286 (gnus-group-mark-region unmark (point-min) (point-max)))
5288 (defun gnus-group-mark-regexp (regexp)
5289 "Mark all groups that match some regexp."
5290 (interactive "sMark (regexp): ")
5291 (let ((alist (cdr gnus-newsrc-alist))
5292 group)
5293 (while alist
5294 (when (string-match regexp (setq group (gnus-info-group (pop alist))))
5295 (gnus-group-set-mark group))))
5296 (gnus-group-position-point))
5298 (defun gnus-group-remove-mark (group)
5299 "Remove the process mark from GROUP and move point there.
5300 Return nil if the group isn't displayed."
5301 (if (gnus-group-goto-group group)
5302 (save-excursion
5303 (gnus-group-mark-group 1 'unmark t)
5305 (setq gnus-group-marked
5306 (delete group gnus-group-marked))
5307 nil))
5309 (defun gnus-group-set-mark (group)
5310 "Set the process mark on GROUP."
5311 (if (gnus-group-goto-group group)
5312 (save-excursion
5313 (gnus-group-mark-group 1 nil t))
5314 (setq gnus-group-marked (cons group (delete group gnus-group-marked)))))
5316 (defun gnus-group-universal-argument (arg &optional groups func)
5317 "Perform any command on all groups accoring to the process/prefix convention."
5318 (interactive "P")
5319 (let ((groups (or groups (gnus-group-process-prefix arg)))
5320 group func)
5321 (if (eq (setq func (or func
5322 (key-binding
5323 (read-key-sequence
5324 (substitute-command-keys
5325 "\\<gnus-group-mode-map>\\[gnus-group-universal-argument]")))))
5326 'undefined)
5327 (gnus-error 1 "Undefined key")
5328 (while groups
5329 (gnus-group-remove-mark (setq group (pop groups)))
5330 (command-execute func))))
5331 (gnus-group-position-point))
5333 (defun gnus-group-process-prefix (n)
5334 "Return a list of groups to work on.
5335 Take into consideration N (the prefix) and the list of marked groups."
5336 (cond
5338 (setq n (prefix-numeric-value n))
5339 ;; There is a prefix, so we return a list of the N next
5340 ;; groups.
5341 (let ((way (if (< n 0) -1 1))
5342 (n (abs n))
5343 group groups)
5344 (save-excursion
5345 (while (and (> n 0)
5346 (setq group (gnus-group-group-name)))
5347 (setq groups (cons group groups))
5348 (setq n (1- n))
5349 (gnus-group-next-group way)))
5350 (nreverse groups)))
5351 ((and (boundp 'transient-mark-mode)
5352 transient-mark-mode
5353 (boundp 'mark-active)
5354 mark-active)
5355 ;; Work on the region between point and mark.
5356 (let ((max (max (point) (mark)))
5357 groups)
5358 (save-excursion
5359 (goto-char (min (point) (mark)))
5360 (while
5361 (and
5362 (push (gnus-group-group-name) groups)
5363 (zerop (gnus-group-next-group 1))
5364 (< (point) max)))
5365 (nreverse groups))))
5366 (gnus-group-marked
5367 ;; No prefix, but a list of marked articles.
5368 (reverse gnus-group-marked))
5370 ;; Neither marked articles or a prefix, so we return the
5371 ;; current group.
5372 (let ((group (gnus-group-group-name)))
5373 (and group (list group))))))
5375 ;; Selecting groups.
5377 (defun gnus-group-read-group (&optional all no-article group)
5378 "Read news in this newsgroup.
5379 If the prefix argument ALL is non-nil, already read articles become
5380 readable. IF ALL is a number, fetch this number of articles. If the
5381 optional argument NO-ARTICLE is non-nil, no article will be
5382 auto-selected upon group entry. If GROUP is non-nil, fetch that
5383 group."
5384 (interactive "P")
5385 (let ((group (or group (gnus-group-group-name)))
5386 number active marked entry)
5387 (or group (error "No group on current line"))
5388 (setq marked (nth 3 (nth 2 (setq entry (gnus-gethash
5389 group gnus-newsrc-hashtb)))))
5390 ;; This group might be a dead group. In that case we have to get
5391 ;; the number of unread articles from `gnus-active-hashtb'.
5392 (setq number
5393 (cond ((numberp all) all)
5394 (entry (car entry))
5395 ((setq active (gnus-active group))
5396 (- (1+ (cdr active)) (car active)))))
5397 (gnus-summary-read-group
5398 group (or all (and (numberp number)
5399 (zerop (+ number (gnus-range-length
5400 (cdr (assq 'tick marked)))
5401 (gnus-range-length
5402 (cdr (assq 'dormant marked)))))))
5403 no-article)))
5405 (defun gnus-group-select-group (&optional all)
5406 "Select this newsgroup.
5407 No article is selected automatically.
5408 If ALL is non-nil, already read articles become readable.
5409 If ALL is a number, fetch this number of articles."
5410 (interactive "P")
5411 (gnus-group-read-group all t))
5413 (defun gnus-group-quick-select-group (&optional all)
5414 "Select the current group \"quickly\".
5415 This means that no highlighting or scoring will be performed."
5416 (interactive "P")
5417 (let (gnus-visual
5418 gnus-score-find-score-files-function
5419 gnus-apply-kill-hook
5420 gnus-summary-expunge-below)
5421 (gnus-group-read-group all t)))
5423 (defun gnus-group-visible-select-group (&optional all)
5424 "Select the current group without hiding any articles."
5425 (interactive "P")
5426 (let ((gnus-inhibit-limiting t))
5427 (gnus-group-read-group all t)))
5429 ;;;###autoload
5430 (defun gnus-fetch-group (group)
5431 "Start Gnus if necessary and enter GROUP.
5432 Returns whether the fetching was successful or not."
5433 (interactive "sGroup name: ")
5434 (or (get-buffer gnus-group-buffer)
5435 (gnus))
5436 (gnus-group-read-group nil nil group))
5438 ;; Enter a group that is not in the group buffer. Non-nil is returned
5439 ;; if selection was successful.
5440 (defun gnus-group-read-ephemeral-group
5441 (group method &optional activate quit-config)
5442 (let ((group (if (gnus-group-foreign-p group) group
5443 (gnus-group-prefixed-name group method))))
5444 (gnus-sethash
5445 group
5446 `(t nil (,group ,gnus-level-default-subscribed nil nil ,method
5447 ((quit-config . ,(if quit-config quit-config
5448 (cons (current-buffer) 'summary))))))
5449 gnus-newsrc-hashtb)
5450 (set-buffer gnus-group-buffer)
5451 (or (gnus-check-server method)
5452 (error "Unable to contact server: %s" (gnus-status-message method)))
5453 (if activate (or (gnus-request-group group)
5454 (error "Couldn't request group")))
5455 (condition-case ()
5456 (gnus-group-read-group t t group)
5457 (error nil)
5458 (quit nil))))
5460 (defun gnus-group-jump-to-group (group)
5461 "Jump to newsgroup GROUP."
5462 (interactive
5463 (list (completing-read
5464 "Group: " gnus-active-hashtb nil
5465 (gnus-read-active-file-p)
5467 'gnus-group-history)))
5469 (when (equal group "")
5470 (error "Empty group name"))
5472 (when (string-match "[\000-\032]" group)
5473 (error "Control characters in group: %s" group))
5475 (let ((b (text-property-any
5476 (point-min) (point-max)
5477 'gnus-group (gnus-intern-safe group gnus-active-hashtb))))
5478 (unless (gnus-ephemeral-group-p group)
5479 (if b
5480 ;; Either go to the line in the group buffer...
5481 (goto-char b)
5482 ;; ... or insert the line.
5484 (gnus-active group)
5485 (gnus-activate-group group)
5486 (error "%s error: %s" group (gnus-status-message group)))
5488 (gnus-group-update-group group)
5489 (goto-char (text-property-any
5490 (point-min) (point-max)
5491 'gnus-group (gnus-intern-safe group gnus-active-hashtb)))))
5492 ;; Adjust cursor point.
5493 (gnus-group-position-point)))
5495 (defun gnus-group-goto-group (group)
5496 "Goto to newsgroup GROUP."
5497 (when group
5498 (let ((b (text-property-any (point-min) (point-max)
5499 'gnus-group (gnus-intern-safe
5500 group gnus-active-hashtb))))
5501 (and b (goto-char b)))))
5503 (defun gnus-group-next-group (n)
5504 "Go to next N'th newsgroup.
5505 If N is negative, search backward instead.
5506 Returns the difference between N and the number of skips actually
5507 done."
5508 (interactive "p")
5509 (gnus-group-next-unread-group n t))
5511 (defun gnus-group-next-unread-group (n &optional all level)
5512 "Go to next N'th unread newsgroup.
5513 If N is negative, search backward instead.
5514 If ALL is non-nil, choose any newsgroup, unread or not.
5515 If LEVEL is non-nil, choose the next group with level LEVEL, or, if no
5516 such group can be found, the next group with a level higher than
5517 LEVEL.
5518 Returns the difference between N and the number of skips actually
5519 made."
5520 (interactive "p")
5521 (let ((backward (< n 0))
5522 (n (abs n)))
5523 (while (and (> n 0)
5524 (gnus-group-search-forward
5525 backward (or (not gnus-group-goto-unread) all) level))
5526 (setq n (1- n)))
5527 (if (/= 0 n) (gnus-message 7 "No more%s newsgroups%s" (if all "" " unread")
5528 (if level " on this level or higher" "")))
5531 (defun gnus-group-prev-group (n)
5532 "Go to previous N'th newsgroup.
5533 Returns the difference between N and the number of skips actually
5534 done."
5535 (interactive "p")
5536 (gnus-group-next-unread-group (- n) t))
5538 (defun gnus-group-prev-unread-group (n)
5539 "Go to previous N'th unread newsgroup.
5540 Returns the difference between N and the number of skips actually
5541 done."
5542 (interactive "p")
5543 (gnus-group-next-unread-group (- n)))
5545 (defun gnus-group-next-unread-group-same-level (n)
5546 "Go to next N'th unread newsgroup on the same level.
5547 If N is negative, search backward instead.
5548 Returns the difference between N and the number of skips actually
5549 done."
5550 (interactive "p")
5551 (gnus-group-next-unread-group n t (gnus-group-group-level))
5552 (gnus-group-position-point))
5554 (defun gnus-group-prev-unread-group-same-level (n)
5555 "Go to next N'th unread newsgroup on the same level.
5556 Returns the difference between N and the number of skips actually
5557 done."
5558 (interactive "p")
5559 (gnus-group-next-unread-group (- n) t (gnus-group-group-level))
5560 (gnus-group-position-point))
5562 (defun gnus-group-best-unread-group (&optional exclude-group)
5563 "Go to the group with the highest level.
5564 If EXCLUDE-GROUP, do not go to that group."
5565 (interactive)
5566 (goto-char (point-min))
5567 (let ((best 100000)
5568 unread best-point)
5569 (while (not (eobp))
5570 (setq unread (get-text-property (point) 'gnus-unread))
5571 (if (and (numberp unread) (> unread 0))
5572 (progn
5573 (if (and (get-text-property (point) 'gnus-level)
5574 (< (get-text-property (point) 'gnus-level) best)
5575 (or (not exclude-group)
5576 (not (equal exclude-group (gnus-group-group-name)))))
5577 (progn
5578 (setq best (get-text-property (point) 'gnus-level))
5579 (setq best-point (point))))))
5580 (forward-line 1))
5581 (if best-point (goto-char best-point))
5582 (gnus-summary-position-point)
5583 (and best-point (gnus-group-group-name))))
5585 (defun gnus-group-first-unread-group ()
5586 "Go to the first group with unread articles."
5587 (interactive)
5588 (prog1
5589 (let ((opoint (point))
5590 unread)
5591 (goto-char (point-min))
5592 (if (or (eq (setq unread (gnus-group-group-unread)) t) ; Not active.
5593 (and (numberp unread) ; Not a topic.
5594 (not (zerop unread))) ; Has unread articles.
5595 (zerop (gnus-group-next-unread-group 1))) ; Next unread group.
5596 (point) ; Success.
5597 (goto-char opoint)
5598 nil)) ; Not success.
5599 (gnus-group-position-point)))
5601 (defun gnus-group-enter-server-mode ()
5602 "Jump to the server buffer."
5603 (interactive)
5604 (gnus-enter-server-buffer))
5606 (defun gnus-group-make-group (name &optional method address)
5607 "Add a new newsgroup.
5608 The user will be prompted for a NAME, for a select METHOD, and an
5609 ADDRESS."
5610 (interactive
5611 (cons
5612 (read-string "Group name: ")
5613 (let ((method
5614 (completing-read
5615 "Method: " (append gnus-valid-select-methods gnus-server-alist)
5616 nil t nil 'gnus-method-history)))
5617 (cond ((assoc method gnus-valid-select-methods)
5618 (list method
5619 (if (memq 'prompt-address
5620 (assoc method gnus-valid-select-methods))
5621 (read-string "Address: ")
5622 "")))
5623 ((assoc method gnus-server-alist)
5624 (list method))
5626 (list method ""))))))
5628 (let* ((meth (and method (if address (list (intern method) address)
5629 method)))
5630 (nname (if method (gnus-group-prefixed-name name meth) name))
5631 backend info)
5632 (when (gnus-gethash nname gnus-newsrc-hashtb)
5633 (error "Group %s already exists" nname))
5634 ;; Subscribe to the new group.
5635 (gnus-group-change-level
5636 (setq info (list t nname gnus-level-default-subscribed nil nil meth))
5637 gnus-level-default-subscribed gnus-level-killed
5638 (and (gnus-group-group-name)
5639 (gnus-gethash (gnus-group-group-name)
5640 gnus-newsrc-hashtb))
5642 ;; Make it active.
5643 (gnus-set-active nname (cons 1 0))
5644 (or (gnus-ephemeral-group-p name)
5645 (gnus-dribble-enter
5646 (concat "(gnus-group-set-info '" (prin1-to-string (cdr info)) ")")))
5647 ;; Insert the line.
5648 (gnus-group-insert-group-line-info nname)
5649 (forward-line -1)
5650 (gnus-group-position-point)
5652 ;; Load the backend and try to make the backend create
5653 ;; the group as well.
5654 (when (assoc (symbol-name (setq backend (car (gnus-server-get-method
5655 nil meth))))
5656 gnus-valid-select-methods)
5657 (require backend))
5658 (gnus-check-server meth)
5659 (and (gnus-check-backend-function 'request-create-group nname)
5660 (gnus-request-create-group nname))
5663 (defun gnus-group-delete-group (group &optional force)
5664 "Delete the current group. Only meaningful with mail groups.
5665 If FORCE (the prefix) is non-nil, all the articles in the group will
5666 be deleted. This is \"deleted\" as in \"removed forever from the face
5667 of the Earth\". There is no undo. The user will be prompted before
5668 doing the deletion."
5669 (interactive
5670 (list (gnus-group-group-name)
5671 current-prefix-arg))
5672 (or group (error "No group to rename"))
5673 (or (gnus-check-backend-function 'request-delete-group group)
5674 (error "This backend does not support group deletion"))
5675 (prog1
5676 (if (not (gnus-yes-or-no-p
5677 (format
5678 "Do you really want to delete %s%s? "
5679 group (if force " and all its contents" ""))))
5680 () ; Whew!
5681 (gnus-message 6 "Deleting group %s..." group)
5682 (if (not (gnus-request-delete-group group force))
5683 (gnus-error 3 "Couldn't delete group %s" group)
5684 (gnus-message 6 "Deleting group %s...done" group)
5685 (gnus-group-goto-group group)
5686 (gnus-group-kill-group 1 t)
5687 (gnus-sethash group nil gnus-active-hashtb)
5689 (gnus-group-position-point)))
5691 (defun gnus-group-rename-group (group new-name)
5692 (interactive
5693 (list
5694 (gnus-group-group-name)
5695 (progn
5696 (or (gnus-check-backend-function
5697 'request-rename-group (gnus-group-group-name))
5698 (error "This backend does not support renaming groups"))
5699 (read-string "New group name: "))))
5701 (or (gnus-check-backend-function 'request-rename-group group)
5702 (error "This backend does not support renaming groups"))
5704 (or group (error "No group to rename"))
5705 (and (string-match "^[ \t]*$" new-name)
5706 (error "Not a valid group name"))
5708 ;; We find the proper prefixed name.
5709 (setq new-name
5710 (gnus-group-prefixed-name
5711 (gnus-group-real-name new-name)
5712 (gnus-info-method (gnus-get-info group))))
5714 (gnus-message 6 "Renaming group %s to %s..." group new-name)
5715 (prog1
5716 (if (not (gnus-request-rename-group group new-name))
5717 (gnus-error 3 "Couldn't rename group %s to %s" group new-name)
5718 ;; We rename the group internally by killing it...
5719 (gnus-group-goto-group group)
5720 (gnus-group-kill-group)
5721 ;; ... changing its name ...
5722 (setcar (cdar gnus-list-of-killed-groups) new-name)
5723 ;; ... and then yanking it. Magic!
5724 (gnus-group-yank-group)
5725 (gnus-set-active new-name (gnus-active group))
5726 (gnus-message 6 "Renaming group %s to %s...done" group new-name)
5727 new-name)
5728 (gnus-group-position-point)))
5730 (defun gnus-group-edit-group (group &optional part)
5731 "Edit the group on the current line."
5732 (interactive (list (gnus-group-group-name)))
5733 (let* ((part (or part 'info))
5734 (done-func `(lambda ()
5735 "Exit editing mode and update the information."
5736 (interactive)
5737 (gnus-group-edit-group-done ',part ,group)))
5738 (winconf (current-window-configuration))
5739 info)
5740 (or group (error "No group on current line"))
5741 (or (setq info (gnus-get-info group))
5742 (error "Killed group; can't be edited"))
5743 (set-buffer (get-buffer-create gnus-group-edit-buffer))
5744 (gnus-configure-windows 'edit-group)
5745 (gnus-add-current-to-buffer-list)
5746 (emacs-lisp-mode)
5747 ;; Suggested by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
5748 (use-local-map (copy-keymap emacs-lisp-mode-map))
5749 (local-set-key "\C-c\C-c" done-func)
5750 (make-local-variable 'gnus-prev-winconf)
5751 (setq gnus-prev-winconf winconf)
5752 (erase-buffer)
5753 (insert
5754 (cond
5755 ((eq part 'method)
5756 ";; Type `C-c C-c' after editing the select method.\n\n")
5757 ((eq part 'params)
5758 ";; Type `C-c C-c' after editing the group parameters.\n\n")
5759 ((eq part 'info)
5760 ";; Type `C-c C-c' after editing the group info.\n\n")))
5761 (insert
5762 (pp-to-string
5763 (cond ((eq part 'method)
5764 (or (gnus-info-method info) "native"))
5765 ((eq part 'params)
5766 (gnus-info-params info))
5767 (t info)))
5768 "\n")))
5770 (defun gnus-group-edit-group-method (group)
5771 "Edit the select method of GROUP."
5772 (interactive (list (gnus-group-group-name)))
5773 (gnus-group-edit-group group 'method))
5775 (defun gnus-group-edit-group-parameters (group)
5776 "Edit the group parameters of GROUP."
5777 (interactive (list (gnus-group-group-name)))
5778 (gnus-group-edit-group group 'params))
5780 (defun gnus-group-edit-group-done (part group)
5781 "Get info from buffer, update variables and jump to the group buffer."
5782 (set-buffer (get-buffer-create gnus-group-edit-buffer))
5783 (goto-char (point-min))
5784 (let* ((form (read (current-buffer)))
5785 (winconf gnus-prev-winconf)
5786 (method (cond ((eq part 'info) (nth 4 form))
5787 ((eq part 'method) form)
5788 (t nil)))
5789 (info (cond ((eq part 'info) form)
5790 ((eq part 'method) (gnus-get-info group))
5791 (t nil)))
5792 (new-group (if info
5793 (if (or (not method)
5794 (gnus-server-equal
5795 gnus-select-method method))
5796 (gnus-group-real-name (car info))
5797 (gnus-group-prefixed-name
5798 (gnus-group-real-name (car info)) method))
5799 nil)))
5800 (when (and new-group
5801 (not (equal new-group group)))
5802 (when (gnus-group-goto-group group)
5803 (gnus-group-kill-group 1))
5804 (gnus-activate-group new-group))
5805 ;; Set the info.
5806 (if (and info new-group)
5807 (progn
5808 (setq info (gnus-copy-sequence info))
5809 (setcar info new-group)
5810 (unless (gnus-server-equal method "native")
5811 (unless (nthcdr 3 info)
5812 (nconc info (list nil nil)))
5813 (unless (nthcdr 4 info)
5814 (nconc info (list nil)))
5815 (gnus-info-set-method info method))
5816 (gnus-group-set-info info))
5817 (gnus-group-set-info form (or new-group group) part))
5818 (kill-buffer (current-buffer))
5819 (and winconf (set-window-configuration winconf))
5820 (set-buffer gnus-group-buffer)
5821 (gnus-group-update-group (or new-group group))
5822 (gnus-group-position-point)))
5824 (defun gnus-group-make-help-group ()
5825 "Create the Gnus documentation group."
5826 (interactive)
5827 (let ((path load-path)
5828 (name (gnus-group-prefixed-name "gnus-help" '(nndoc "gnus-help")))
5829 file dir)
5830 (and (gnus-gethash name gnus-newsrc-hashtb)
5831 (error "Documentation group already exists"))
5832 (while path
5833 (setq dir (file-name-as-directory (expand-file-name (pop path)))
5834 file nil)
5835 (when (or (file-exists-p (setq file (concat dir "gnus-tut.txt")))
5836 (file-exists-p
5837 (setq file (concat (file-name-directory
5838 (directory-file-name dir))
5839 "etc/gnus-tut.txt"))))
5840 (setq path nil)))
5841 (if (not file)
5842 (gnus-message 1 "Couldn't find doc group")
5843 (gnus-group-make-group
5844 (gnus-group-real-name name)
5845 (list 'nndoc "gnus-help"
5846 (list 'nndoc-address file)
5847 (list 'nndoc-article-type 'mbox)))))
5848 (gnus-group-position-point))
5850 (defun gnus-group-make-doc-group (file type)
5851 "Create a group that uses a single file as the source."
5852 (interactive
5853 (list (read-file-name "File name: ")
5854 (and current-prefix-arg 'ask)))
5855 (when (eq type 'ask)
5856 (let ((err "")
5857 char found)
5858 (while (not found)
5859 (message
5860 "%sFile type (mbox, babyl, digest, forward, mmfd, guess) [mbdfag]: "
5861 err)
5862 (setq found (cond ((= (setq char (read-char)) ?m) 'mbox)
5863 ((= char ?b) 'babyl)
5864 ((= char ?d) 'digest)
5865 ((= char ?f) 'forward)
5866 ((= char ?a) 'mmfd)
5867 (t (setq err (format "%c unknown. " char))
5868 nil))))
5869 (setq type found)))
5870 (let* ((file (expand-file-name file))
5871 (name (gnus-generate-new-group-name
5872 (gnus-group-prefixed-name
5873 (file-name-nondirectory file) '(nndoc "")))))
5874 (gnus-group-make-group
5875 (gnus-group-real-name name)
5876 (list 'nndoc (file-name-nondirectory file)
5877 (list 'nndoc-address file)
5878 (list 'nndoc-article-type (or type 'guess))))))
5880 (defun gnus-group-make-archive-group (&optional all)
5881 "Create the (ding) Gnus archive group of the most recent articles.
5882 Given a prefix, create a full group."
5883 (interactive "P")
5884 (let ((group (gnus-group-prefixed-name
5885 (if all "ding.archives" "ding.recent") '(nndir ""))))
5886 (and (gnus-gethash group gnus-newsrc-hashtb)
5887 (error "Archive group already exists"))
5888 (gnus-group-make-group
5889 (gnus-group-real-name group)
5890 (list 'nndir (if all "hpc" "edu")
5891 (list 'nndir-directory
5892 (if all gnus-group-archive-directory
5893 gnus-group-recent-archive-directory))))))
5895 (defun gnus-group-make-directory-group (dir)
5896 "Create an nndir group.
5897 The user will be prompted for a directory. The contents of this
5898 directory will be used as a newsgroup. The directory should contain
5899 mail messages or news articles in files that have numeric names."
5900 (interactive
5901 (list (read-file-name "Create group from directory: ")))
5902 (or (file-exists-p dir) (error "No such directory"))
5903 (or (file-directory-p dir) (error "Not a directory"))
5904 (let ((ext "")
5905 (i 0)
5906 group)
5907 (while (or (not group) (gnus-gethash group gnus-newsrc-hashtb))
5908 (setq group
5909 (gnus-group-prefixed-name
5910 (concat (file-name-as-directory (directory-file-name dir))
5911 ext)
5912 '(nndir "")))
5913 (setq ext (format "<%d>" (setq i (1+ i)))))
5914 (gnus-group-make-group
5915 (gnus-group-real-name group)
5916 (list 'nndir group (list 'nndir-directory dir)))))
5918 (defun gnus-group-make-kiboze-group (group address scores)
5919 "Create an nnkiboze group.
5920 The user will be prompted for a name, a regexp to match groups, and
5921 score file entries for articles to include in the group."
5922 (interactive
5923 (list
5924 (read-string "nnkiboze group name: ")
5925 (read-string "Source groups (regexp): ")
5926 (let ((headers (mapcar (lambda (group) (list group))
5927 '("subject" "from" "number" "date" "message-id"
5928 "references" "chars" "lines" "xref"
5929 "followup" "all" "body" "head")))
5930 scores header regexp regexps)
5931 (while (not (equal "" (setq header (completing-read
5932 "Match on header: " headers nil t))))
5933 (setq regexps nil)
5934 (while (not (equal "" (setq regexp (read-string
5935 (format "Match on %s (string): "
5936 header)))))
5937 (setq regexps (cons (list regexp nil nil 'r) regexps)))
5938 (setq scores (cons (cons header regexps) scores)))
5939 scores)))
5940 (gnus-group-make-group group "nnkiboze" address)
5941 (nnheader-temp-write (gnus-score-file-name (concat "nnkiboze:" group))
5942 (let (emacs-lisp-mode-hook)
5943 (pp scores (current-buffer)))))
5945 (defun gnus-group-add-to-virtual (n vgroup)
5946 "Add the current group to a virtual group."
5947 (interactive
5948 (list current-prefix-arg
5949 (completing-read "Add to virtual group: " gnus-newsrc-hashtb nil t
5950 "nnvirtual:")))
5951 (or (eq (car (gnus-find-method-for-group vgroup)) 'nnvirtual)
5952 (error "%s is not an nnvirtual group" vgroup))
5953 (let* ((groups (gnus-group-process-prefix n))
5954 (method (gnus-info-method (gnus-get-info vgroup))))
5955 (setcar (cdr method)
5956 (concat
5957 (nth 1 method) "\\|"
5958 (mapconcat
5959 (lambda (s)
5960 (gnus-group-remove-mark s)
5961 (concat "\\(^" (regexp-quote s) "$\\)"))
5962 groups "\\|"))))
5963 (gnus-group-position-point))
5965 (defun gnus-group-make-empty-virtual (group)
5966 "Create a new, fresh, empty virtual group."
5967 (interactive "sCreate new, empty virtual group: ")
5968 (let* ((method (list 'nnvirtual "^$"))
5969 (pgroup (gnus-group-prefixed-name group method)))
5970 ;; Check whether it exists already.
5971 (and (gnus-gethash pgroup gnus-newsrc-hashtb)
5972 (error "Group %s already exists." pgroup))
5973 ;; Subscribe the new group after the group on the current line.
5974 (gnus-subscribe-group pgroup (gnus-group-group-name) method)
5975 (gnus-group-update-group pgroup)
5976 (forward-line -1)
5977 (gnus-group-position-point)))
5979 (defun gnus-group-enter-directory (dir)
5980 "Enter an ephemeral nneething group."
5981 (interactive "DDirectory to read: ")
5982 (let* ((method (list 'nneething dir '(nneething-read-only t)))
5983 (leaf (gnus-group-prefixed-name
5984 (file-name-nondirectory (directory-file-name dir))
5985 method))
5986 (name (gnus-generate-new-group-name leaf)))
5987 (unless (gnus-group-read-ephemeral-group
5988 name method t
5989 (cons (current-buffer)
5990 (if (eq major-mode 'gnus-summary-mode)
5991 'summary 'group)))
5992 (error "Couldn't enter %s" dir))))
5994 ;; Group sorting commands
5995 ;; Suggested by Joe Hildebrand <hildjj@idaho.fuentez.com>.
5997 (defun gnus-group-sort-groups (func &optional reverse)
5998 "Sort the group buffer according to FUNC.
5999 If REVERSE, reverse the sorting order."
6000 (interactive (list gnus-group-sort-function
6001 current-prefix-arg))
6002 (let ((func (cond
6003 ((not (listp func)) func)
6004 ((null func) func)
6005 ((= 1 (length func)) (car func))
6006 (t `(lambda (t1 t2)
6007 ,(gnus-make-sort-function
6008 (reverse func)))))))
6009 ;; We peel off the dummy group from the alist.
6010 (when func
6011 (when (equal (car (gnus-info-group gnus-newsrc-alist)) "dummy.group")
6012 (pop gnus-newsrc-alist))
6013 ;; Do the sorting.
6014 (setq gnus-newsrc-alist
6015 (sort gnus-newsrc-alist func))
6016 (when reverse
6017 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist)))
6018 ;; Regenerate the hash table.
6019 (gnus-make-hashtable-from-newsrc-alist)
6020 (gnus-group-list-groups))))
6022 (defun gnus-group-sort-groups-by-alphabet (&optional reverse)
6023 "Sort the group buffer alphabetically by group name.
6024 If REVERSE, sort in reverse order."
6025 (interactive "P")
6026 (gnus-group-sort-groups 'gnus-group-sort-by-alphabet reverse))
6028 (defun gnus-group-sort-groups-by-unread (&optional reverse)
6029 "Sort the group buffer by number of unread articles.
6030 If REVERSE, sort in reverse order."
6031 (interactive "P")
6032 (gnus-group-sort-groups 'gnus-group-sort-by-unread reverse))
6034 (defun gnus-group-sort-groups-by-level (&optional reverse)
6035 "Sort the group buffer by group level.
6036 If REVERSE, sort in reverse order."
6037 (interactive "P")
6038 (gnus-group-sort-groups 'gnus-group-sort-by-level reverse))
6040 (defun gnus-group-sort-groups-by-score (&optional reverse)
6041 "Sort the group buffer by group score.
6042 If REVERSE, sort in reverse order."
6043 (interactive "P")
6044 (gnus-group-sort-groups 'gnus-group-sort-by-score reverse))
6046 (defun gnus-group-sort-groups-by-rank (&optional reverse)
6047 "Sort the group buffer by group rank.
6048 If REVERSE, sort in reverse order."
6049 (interactive "P")
6050 (gnus-group-sort-groups 'gnus-group-sort-by-rank reverse))
6052 (defun gnus-group-sort-groups-by-method (&optional reverse)
6053 "Sort the group buffer alphabetically by backend name.
6054 If REVERSE, sort in reverse order."
6055 (interactive "P")
6056 (gnus-group-sort-groups 'gnus-group-sort-by-method reverse))
6058 (defun gnus-group-sort-by-alphabet (info1 info2)
6059 "Sort alphabetically."
6060 (string< (gnus-info-group info1) (gnus-info-group info2)))
6062 (defun gnus-group-sort-by-unread (info1 info2)
6063 "Sort by number of unread articles."
6064 (let ((n1 (car (gnus-gethash (gnus-info-group info1) gnus-newsrc-hashtb)))
6065 (n2 (car (gnus-gethash (gnus-info-group info2) gnus-newsrc-hashtb))))
6066 (< (or (and (numberp n1) n1) 0)
6067 (or (and (numberp n2) n2) 0))))
6069 (defun gnus-group-sort-by-level (info1 info2)
6070 "Sort by level."
6071 (< (gnus-info-level info1) (gnus-info-level info2)))
6073 (defun gnus-group-sort-by-method (info1 info2)
6074 "Sort alphabetically by backend name."
6075 (string< (symbol-name (car (gnus-find-method-for-group
6076 (gnus-info-group info1) info1)))
6077 (symbol-name (car (gnus-find-method-for-group
6078 (gnus-info-group info2) info2)))))
6080 (defun gnus-group-sort-by-score (info1 info2)
6081 "Sort by group score."
6082 (< (gnus-info-score info1) (gnus-info-score info2)))
6084 (defun gnus-group-sort-by-rank (info1 info2)
6085 "Sort by level and score."
6086 (let ((level1 (gnus-info-level info1))
6087 (level2 (gnus-info-level info2)))
6088 (or (< level1 level2)
6089 (and (= level1 level2)
6090 (> (gnus-info-score info1) (gnus-info-score info2))))))
6092 ;; Group catching up.
6094 (defun gnus-group-clear-data (n)
6095 "Clear all marks and read ranges from the current group."
6096 (interactive "P")
6097 (let ((groups (gnus-group-process-prefix n))
6098 group info)
6099 (while (setq group (pop groups))
6100 (setq info (gnus-get-info group))
6101 (gnus-info-set-read info nil)
6102 (when (gnus-info-marks info)
6103 (gnus-info-set-marks info nil))
6104 (gnus-get-unread-articles-in-group info (gnus-active group) t)
6105 (when (gnus-group-goto-group group)
6106 (gnus-group-remove-mark group)
6107 (gnus-group-update-group-line)))))
6109 (defun gnus-group-catchup-current (&optional n all)
6110 "Mark all articles not marked as unread in current newsgroup as read.
6111 If prefix argument N is numeric, the ARG next newsgroups will be
6112 caught up. If ALL is non-nil, marked articles will also be marked as
6113 read. Cross references (Xref: header) of articles are ignored.
6114 The difference between N and actual number of newsgroups that were
6115 caught up is returned."
6116 (interactive "P")
6117 (unless (gnus-group-group-name)
6118 (error "No group on the current line"))
6119 (if (not (or (not gnus-interactive-catchup) ;Without confirmation?
6120 gnus-expert-user
6121 (gnus-y-or-n-p
6122 (if all
6123 "Do you really want to mark all articles as read? "
6124 "Mark all unread articles as read? "))))
6126 (let ((groups (gnus-group-process-prefix n))
6127 (ret 0))
6128 (while groups
6129 ;; Virtual groups have to be given special treatment.
6130 (let ((method (gnus-find-method-for-group (car groups))))
6131 (if (eq 'nnvirtual (car method))
6132 (nnvirtual-catchup-group
6133 (gnus-group-real-name (car groups)) (nth 1 method) all)))
6134 (gnus-group-remove-mark (car groups))
6135 (if (>= (gnus-group-group-level) gnus-level-zombie)
6136 (gnus-message 2 "Dead groups can't be caught up")
6137 (if (prog1
6138 (gnus-group-goto-group (car groups))
6139 (gnus-group-catchup (car groups) all))
6140 (gnus-group-update-group-line)
6141 (setq ret (1+ ret))))
6142 (setq groups (cdr groups)))
6143 (gnus-group-next-unread-group 1)
6144 ret)))
6146 (defun gnus-group-catchup-current-all (&optional n)
6147 "Mark all articles in current newsgroup as read.
6148 Cross references (Xref: header) of articles are ignored."
6149 (interactive "P")
6150 (gnus-group-catchup-current n 'all))
6152 (defun gnus-group-catchup (group &optional all)
6153 "Mark all articles in GROUP as read.
6154 If ALL is non-nil, all articles are marked as read.
6155 The return value is the number of articles that were marked as read,
6156 or nil if no action could be taken."
6157 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
6158 (num (car entry)))
6159 ;; Do the updating only if the newsgroup isn't killed.
6160 (if (not (numberp (car entry)))
6161 (gnus-message 1 "Can't catch up; non-active group")
6162 ;; Do auto-expirable marks if that's required.
6163 (when (gnus-group-auto-expirable-p group)
6164 (gnus-add-marked-articles
6165 group 'expire (gnus-list-of-unread-articles group))
6166 (when all
6167 (let ((marks (nth 3 (nth 2 entry))))
6168 (gnus-add-marked-articles
6169 group 'expire (gnus-uncompress-range (cdr (assq 'tick marks))))
6170 (gnus-add-marked-articles
6171 group 'expire (gnus-uncompress-range (cdr (assq 'tick marks)))))))
6172 (when entry
6173 (gnus-update-read-articles group nil)
6174 ;; Also nix out the lists of marks and dormants.
6175 (when all
6176 (gnus-add-marked-articles group 'tick nil nil 'force)
6177 (gnus-add-marked-articles group 'dormant nil nil 'force))
6178 (run-hooks 'gnus-group-catchup-group-hook)
6179 num))))
6181 (defun gnus-group-expire-articles (&optional n)
6182 "Expire all expirable articles in the current newsgroup."
6183 (interactive "P")
6184 (let ((groups (gnus-group-process-prefix n))
6185 group)
6186 (unless groups
6187 (error "No groups to expire"))
6188 (while (setq group (pop groups))
6189 (gnus-group-remove-mark group)
6190 (when (gnus-check-backend-function 'request-expire-articles group)
6191 (gnus-message 6 "Expiring articles in %s..." group)
6192 (let* ((info (gnus-get-info group))
6193 (expirable (if (gnus-group-total-expirable-p group)
6194 (cons nil (gnus-list-of-read-articles group))
6195 (assq 'expire (gnus-info-marks info))))
6196 (expiry-wait (gnus-group-get-parameter group 'expiry-wait)))
6197 (when expirable
6198 (setcdr
6199 expirable
6200 (gnus-compress-sequence
6201 (if expiry-wait
6202 ;; We set the expiry variables to the groupp
6203 ;; parameter.
6204 (let ((nnmail-expiry-wait-function nil)
6205 (nnmail-expiry-wait expiry-wait))
6206 (gnus-request-expire-articles
6207 (gnus-uncompress-sequence (cdr expirable)) group))
6208 ;; Just expire using the normal expiry values.
6209 (gnus-request-expire-articles
6210 (gnus-uncompress-sequence (cdr expirable)) group))))
6211 (gnus-close-group group))
6212 (gnus-message 6 "Expiring articles in %s...done" group)))
6213 (gnus-group-position-point))))
6215 (defun gnus-group-expire-all-groups ()
6216 "Expire all expirable articles in all newsgroups."
6217 (interactive)
6218 (save-excursion
6219 (gnus-message 5 "Expiring...")
6220 (let ((gnus-group-marked (mapcar (lambda (info) (gnus-info-group info))
6221 (cdr gnus-newsrc-alist))))
6222 (gnus-group-expire-articles nil)))
6223 (gnus-group-position-point)
6224 (gnus-message 5 "Expiring...done"))
6226 (defun gnus-group-set-current-level (n level)
6227 "Set the level of the next N groups to LEVEL."
6228 (interactive
6229 (list
6230 current-prefix-arg
6231 (string-to-int
6232 (let ((s (read-string
6233 (format "Level (default %s): "
6234 (or (gnus-group-group-level)
6235 gnus-level-default-subscribed)))))
6236 (if (string-match "^\\s-*$" s)
6237 (int-to-string (or (gnus-group-group-level)
6238 gnus-level-default-subscribed))
6239 s)))))
6240 (or (and (>= level 1) (<= level gnus-level-killed))
6241 (error "Illegal level: %d" level))
6242 (let ((groups (gnus-group-process-prefix n))
6243 group)
6244 (while (setq group (pop groups))
6245 (gnus-group-remove-mark group)
6246 (gnus-message 6 "Changed level of %s from %d to %d"
6247 group (or (gnus-group-group-level) gnus-level-killed)
6248 level)
6249 (gnus-group-change-level
6250 group level (or (gnus-group-group-level) gnus-level-killed))
6251 (gnus-group-update-group-line)))
6252 (gnus-group-position-point))
6254 (defun gnus-group-unsubscribe-current-group (&optional n)
6255 "Toggle subscription of the current group.
6256 If given numerical prefix, toggle the N next groups."
6257 (interactive "P")
6258 (let ((groups (gnus-group-process-prefix n))
6259 group)
6260 (while groups
6261 (setq group (car groups)
6262 groups (cdr groups))
6263 (gnus-group-remove-mark group)
6264 (gnus-group-unsubscribe-group
6265 group (if (<= (gnus-group-group-level) gnus-level-subscribed)
6266 gnus-level-default-unsubscribed
6267 gnus-level-default-subscribed) t)
6268 (gnus-group-update-group-line))
6269 (gnus-group-next-group 1)))
6271 (defun gnus-group-unsubscribe-group (group &optional level silent)
6272 "Toggle subscription to GROUP.
6273 Killed newsgroups are subscribed. If SILENT, don't try to update the
6274 group line."
6275 (interactive
6276 (list (completing-read
6277 "Group: " gnus-active-hashtb nil
6278 (gnus-read-active-file-p)
6279 nil
6280 'gnus-group-history)))
6281 (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
6282 (cond
6283 ((string-match "^[ \t]$" group)
6284 (error "Empty group name"))
6285 (newsrc
6286 ;; Toggle subscription flag.
6287 (gnus-group-change-level
6288 newsrc (if level level (if (<= (nth 1 (nth 2 newsrc))
6289 gnus-level-subscribed)
6290 (1+ gnus-level-subscribed)
6291 gnus-level-default-subscribed)))
6292 (unless silent
6293 (gnus-group-update-group group)))
6294 ((and (stringp group)
6295 (or (not (gnus-read-active-file-p))
6296 (gnus-active group)))
6297 ;; Add new newsgroup.
6298 (gnus-group-change-level
6299 group
6300 (if level level gnus-level-default-subscribed)
6301 (or (and (member group gnus-zombie-list)
6302 gnus-level-zombie)
6303 gnus-level-killed)
6304 (and (gnus-group-group-name)
6305 (gnus-gethash (gnus-group-group-name) gnus-newsrc-hashtb)))
6306 (unless silent
6307 (gnus-group-update-group group)))
6308 (t (error "No such newsgroup: %s" group)))
6309 (gnus-group-position-point)))
6311 (defun gnus-group-transpose-groups (n)
6312 "Move the current newsgroup up N places.
6313 If given a negative prefix, move down instead. The difference between
6314 N and the number of steps taken is returned."
6315 (interactive "p")
6316 (or (gnus-group-group-name)
6317 (error "No group on current line"))
6318 (gnus-group-kill-group 1)
6319 (prog1
6320 (forward-line (- n))
6321 (gnus-group-yank-group)
6322 (gnus-group-position-point)))
6324 (defun gnus-group-kill-all-zombies ()
6325 "Kill all zombie newsgroups."
6326 (interactive)
6327 (setq gnus-killed-list (nconc gnus-zombie-list gnus-killed-list))
6328 (setq gnus-zombie-list nil)
6329 (gnus-group-list-groups))
6331 (defun gnus-group-kill-region (begin end)
6332 "Kill newsgroups in current region (excluding current point).
6333 The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
6334 (interactive "r")
6335 (let ((lines
6336 ;; Count lines.
6337 (save-excursion
6338 (count-lines
6339 (progn
6340 (goto-char begin)
6341 (beginning-of-line)
6342 (point))
6343 (progn
6344 (goto-char end)
6345 (beginning-of-line)
6346 (point))))))
6347 (goto-char begin)
6348 (beginning-of-line) ;Important when LINES < 1
6349 (gnus-group-kill-group lines)))
6351 (defun gnus-group-kill-group (&optional n discard)
6352 "Kill the next N groups.
6353 The killed newsgroups can be yanked by using \\[gnus-group-yank-group].
6354 However, only groups that were alive can be yanked; already killed
6355 groups or zombie groups can't be yanked.
6356 The return value is the name of the group that was killed, or a list
6357 of groups killed."
6358 (interactive "P")
6359 (let ((buffer-read-only nil)
6360 (groups (gnus-group-process-prefix n))
6361 group entry level out)
6362 (if (< (length groups) 10)
6363 ;; This is faster when there are few groups.
6364 (while groups
6365 (push (setq group (pop groups)) out)
6366 (gnus-group-remove-mark group)
6367 (setq level (gnus-group-group-level))
6368 (gnus-delete-line)
6369 (when (and (not discard)
6370 (setq entry (gnus-gethash group gnus-newsrc-hashtb)))
6371 (push (cons (car entry) (nth 2 entry))
6372 gnus-list-of-killed-groups))
6373 (gnus-group-change-level
6374 (if entry entry group) gnus-level-killed (if entry nil level)))
6375 ;; If there are lots and lots of groups to be killed, we use
6376 ;; this thing instead.
6377 (let (entry)
6378 (setq groups (nreverse groups))
6379 (while groups
6380 (gnus-group-remove-mark (setq group (pop groups)))
6381 (gnus-delete-line)
6382 (push group gnus-killed-list)
6383 (setq gnus-newsrc-alist
6384 (delq (assoc group gnus-newsrc-alist)
6385 gnus-newsrc-alist))
6386 (when gnus-group-change-level-function
6387 (funcall gnus-group-change-level-function group 9 3))
6388 (cond
6389 ((setq entry (gnus-gethash group gnus-newsrc-hashtb))
6390 (push (cons (car entry) (nth 2 entry))
6391 gnus-list-of-killed-groups)
6392 (setcdr (cdr entry) (cdddr entry)))
6393 ((member group gnus-zombie-list)
6394 (setq gnus-zombie-list (delete group gnus-zombie-list)))))
6395 (gnus-make-hashtable-from-newsrc-alist)))
6397 (gnus-group-position-point)
6398 (if (< (length out) 2) (car out) (nreverse out))))
6400 (defun gnus-group-yank-group (&optional arg)
6401 "Yank the last newsgroups killed with \\[gnus-group-kill-group],
6402 inserting it before the current newsgroup. The numeric ARG specifies
6403 how many newsgroups are to be yanked. The name of the newsgroup yanked
6404 is returned, or (if several groups are yanked) a list of yanked groups
6405 is returned."
6406 (interactive "p")
6407 (setq arg (or arg 1))
6408 (let (info group prev out)
6409 (while (>= (decf arg) 0)
6410 (if (not (setq info (pop gnus-list-of-killed-groups)))
6411 (error "No more newsgroups to yank"))
6412 (push (setq group (nth 1 info)) out)
6413 ;; Find which newsgroup to insert this one before - search
6414 ;; backward until something suitable is found. If there are no
6415 ;; other newsgroups in this buffer, just make this newsgroup the
6416 ;; first newsgroup.
6417 (setq prev (gnus-group-group-name))
6418 (gnus-group-change-level
6419 info (gnus-info-level (cdr info)) gnus-level-killed
6420 (and prev (gnus-gethash prev gnus-newsrc-hashtb))
6422 (gnus-group-insert-group-line-info group))
6423 (forward-line -1)
6424 (gnus-group-position-point)
6425 (if (< (length out) 2) (car out) (nreverse out))))
6427 (defun gnus-group-kill-level (level)
6428 "Kill all groups that is on a certain LEVEL."
6429 (interactive "nKill all groups on level: ")
6430 (cond
6431 ((= level gnus-level-zombie)
6432 (setq gnus-killed-list
6433 (nconc gnus-zombie-list gnus-killed-list))
6434 (setq gnus-zombie-list nil))
6435 ((and (< level gnus-level-zombie)
6436 (> level 0)
6437 (or gnus-expert-user
6438 (gnus-yes-or-no-p
6439 (format
6440 "Do you really want to kill all groups on level %d? "
6441 level))))
6442 (let* ((prev gnus-newsrc-alist)
6443 (alist (cdr prev)))
6444 (while alist
6445 (if (= (gnus-info-level (car alist)) level)
6446 (progn
6447 (push (gnus-info-group (car alist)) gnus-killed-list)
6448 (setcdr prev (cdr alist)))
6449 (setq prev alist))
6450 (setq alist (cdr alist)))
6451 (gnus-make-hashtable-from-newsrc-alist)
6452 (gnus-group-list-groups)))
6454 (error "Can't kill; illegal level: %d" level))))
6456 (defun gnus-group-list-all-groups (&optional arg)
6457 "List all newsgroups with level ARG or lower.
6458 Default is gnus-level-unsubscribed, which lists all subscribed and most
6459 unsubscribed groups."
6460 (interactive "P")
6461 (gnus-group-list-groups (or arg gnus-level-unsubscribed) t))
6463 ;; Redefine this to list ALL killed groups if prefix arg used.
6464 ;; Rewritten by engstrom@src.honeywell.com (Eric Engstrom).
6465 (defun gnus-group-list-killed (&optional arg)
6466 "List all killed newsgroups in the group buffer.
6467 If ARG is non-nil, list ALL killed groups known to Gnus. This may
6468 entail asking the server for the groups."
6469 (interactive "P")
6470 ;; Find all possible killed newsgroups if arg.
6471 (when arg
6472 (gnus-get-killed-groups))
6473 (if (not gnus-killed-list)
6474 (gnus-message 6 "No killed groups")
6475 (let (gnus-group-list-mode)
6476 (funcall gnus-group-prepare-function
6477 gnus-level-killed t gnus-level-killed))
6478 (goto-char (point-min)))
6479 (gnus-group-position-point))
6481 (defun gnus-group-list-zombies ()
6482 "List all zombie newsgroups in the group buffer."
6483 (interactive)
6484 (if (not gnus-zombie-list)
6485 (gnus-message 6 "No zombie groups")
6486 (let (gnus-group-list-mode)
6487 (funcall gnus-group-prepare-function
6488 gnus-level-zombie t gnus-level-zombie))
6489 (goto-char (point-min)))
6490 (gnus-group-position-point))
6492 (defun gnus-group-list-active ()
6493 "List all groups that are available from the server(s)."
6494 (interactive)
6495 ;; First we make sure that we have really read the active file.
6496 (unless (gnus-read-active-file-p)
6497 (let ((gnus-read-active-file t))
6498 (gnus-read-active-file)))
6499 ;; Find all groups and sort them.
6500 (let ((groups
6501 (sort
6502 (let (list)
6503 (mapatoms
6504 (lambda (sym)
6505 (and (boundp sym)
6506 (symbol-value sym)
6507 (setq list (cons (symbol-name sym) list))))
6508 gnus-active-hashtb)
6509 list)
6510 'string<))
6511 (buffer-read-only nil))
6512 (erase-buffer)
6513 (while groups
6514 (gnus-group-insert-group-line-info (pop groups)))
6515 (goto-char (point-min))))
6517 (defun gnus-activate-all-groups (level)
6518 "Activate absolutely all groups."
6519 (interactive (list 7))
6520 (let ((gnus-activate-level level)
6521 (gnus-activate-foreign-newsgroups level))
6522 (gnus-group-get-new-news)))
6524 (defun gnus-group-get-new-news (&optional arg)
6525 "Get newly arrived articles.
6526 If ARG is a number, it specifies which levels you are interested in
6527 re-scanning. If ARG is non-nil and not a number, this will force
6528 \"hard\" re-reading of the active files from all servers."
6529 (interactive "P")
6530 (run-hooks 'gnus-get-new-news-hook)
6531 ;; We might read in new NoCeM messages here.
6532 (when (and gnus-use-nocem
6533 (null arg))
6534 (gnus-nocem-scan-groups))
6535 ;; If ARG is not a number, then we read the active file.
6536 (when (and arg (not (numberp arg)))
6537 (let ((gnus-read-active-file t))
6538 (gnus-read-active-file))
6539 (setq arg nil))
6541 (setq arg (gnus-group-default-level arg t))
6542 (if (and gnus-read-active-file (not arg))
6543 (progn
6544 (gnus-read-active-file)
6545 (gnus-get-unread-articles arg))
6546 (let ((gnus-read-active-file (if arg nil gnus-read-active-file)))
6547 (gnus-get-unread-articles arg)))
6548 (run-hooks 'gnus-after-getting-new-news-hook)
6549 (gnus-group-list-groups))
6551 (defun gnus-group-get-new-news-this-group (&optional n)
6552 "Check for newly arrived news in the current group (and the N-1 next groups).
6553 The difference between N and the number of newsgroup checked is returned.
6554 If N is negative, this group and the N-1 previous groups will be checked."
6555 (interactive "P")
6556 (let* ((groups (gnus-group-process-prefix n))
6557 (ret (if (numberp n) (- n (length groups)) 0))
6558 (beg (unless n (point)))
6559 group)
6560 (while (setq group (pop groups))
6561 (gnus-group-remove-mark group)
6562 (if (gnus-activate-group group 'scan)
6563 (progn
6564 (gnus-get-unread-articles-in-group
6565 (gnus-get-info group) (gnus-active group) t)
6566 (unless (gnus-virtual-group-p group)
6567 (gnus-close-group group))
6568 (gnus-group-update-group group))
6569 (if (eq (gnus-server-status (gnus-find-method-for-group group))
6570 'denied)
6571 (gnus-error "Server denied access")
6572 (gnus-error 3 "%s error: %s" group (gnus-status-message group)))))
6573 (when beg (goto-char beg))
6574 (when gnus-goto-next-group-when-activating
6575 (gnus-group-next-unread-group 1 t))
6576 (gnus-summary-position-point)
6577 ret))
6579 (defun gnus-group-fetch-faq (group &optional faq-dir)
6580 "Fetch the FAQ for the current group."
6581 (interactive
6582 (list
6583 (and (gnus-group-group-name)
6584 (gnus-group-real-name (gnus-group-group-name)))
6585 (cond (current-prefix-arg
6586 (completing-read
6587 "Faq dir: " (and (listp gnus-group-faq-directory)
6588 (mapcar (lambda (file) (list file))
6589 gnus-group-faq-directory)))))))
6590 (or faq-dir
6591 (setq faq-dir (if (listp gnus-group-faq-directory)
6592 (car gnus-group-faq-directory)
6593 gnus-group-faq-directory)))
6594 (or group (error "No group name given"))
6595 (let ((file (concat (file-name-as-directory faq-dir)
6596 (gnus-group-real-name group))))
6597 (if (not (file-exists-p file))
6598 (error "No such file: %s" file)
6599 (find-file file))))
6601 (defun gnus-group-describe-group (force &optional group)
6602 "Display a description of the current newsgroup."
6603 (interactive (list current-prefix-arg (gnus-group-group-name)))
6604 (let* ((method (gnus-find-method-for-group group))
6605 (mname (gnus-group-prefixed-name "" method))
6606 desc)
6607 (when (and force
6608 gnus-description-hashtb)
6609 (gnus-sethash mname nil gnus-description-hashtb))
6610 (or group (error "No group name given"))
6611 (and (or (and gnus-description-hashtb
6612 ;; We check whether this group's method has been
6613 ;; queried for a description file.
6614 (gnus-gethash mname gnus-description-hashtb))
6615 (setq desc (gnus-group-get-description group))
6616 (gnus-read-descriptions-file method))
6617 (gnus-message 1
6618 (or desc (gnus-gethash group gnus-description-hashtb)
6619 "No description available")))))
6621 ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
6622 (defun gnus-group-describe-all-groups (&optional force)
6623 "Pop up a buffer with descriptions of all newsgroups."
6624 (interactive "P")
6625 (and force (setq gnus-description-hashtb nil))
6626 (if (not (or gnus-description-hashtb
6627 (gnus-read-all-descriptions-files)))
6628 (error "Couldn't request descriptions file"))
6629 (let ((buffer-read-only nil)
6631 (erase-buffer)
6632 (mapatoms
6633 (lambda (group)
6634 (setq b (point))
6635 (insert (format " *: %-20s %s\n" (symbol-name group)
6636 (symbol-value group)))
6637 (gnus-add-text-properties
6638 b (1+ b) (list 'gnus-group group
6639 'gnus-unread t 'gnus-marked nil
6640 'gnus-level (1+ gnus-level-subscribed))))
6641 gnus-description-hashtb)
6642 (goto-char (point-min))
6643 (gnus-group-position-point)))
6645 ;; Suggested by by Daniel Quinlan <quinlan@best.com>.
6646 (defun gnus-group-apropos (regexp &optional search-description)
6647 "List all newsgroups that have names that match a regexp."
6648 (interactive "sGnus apropos (regexp): ")
6649 (let ((prev "")
6650 (obuf (current-buffer))
6651 groups des)
6652 ;; Go through all newsgroups that are known to Gnus.
6653 (mapatoms
6654 (lambda (group)
6655 (and (symbol-name group)
6656 (string-match regexp (symbol-name group))
6657 (setq groups (cons (symbol-name group) groups))))
6658 gnus-active-hashtb)
6659 ;; Also go through all descriptions that are known to Gnus.
6660 (when search-description
6661 (mapatoms
6662 (lambda (group)
6663 (and (string-match regexp (symbol-value group))
6664 (gnus-active (symbol-name group))
6665 (setq groups (cons (symbol-name group) groups))))
6666 gnus-description-hashtb))
6667 (if (not groups)
6668 (gnus-message 3 "No groups matched \"%s\"." regexp)
6669 ;; Print out all the groups.
6670 (save-excursion
6671 (pop-to-buffer "*Gnus Help*")
6672 (buffer-disable-undo (current-buffer))
6673 (erase-buffer)
6674 (setq groups (sort groups 'string<))
6675 (while groups
6676 ;; Groups may be entered twice into the list of groups.
6677 (if (not (string= (car groups) prev))
6678 (progn
6679 (insert (setq prev (car groups)) "\n")
6680 (if (and gnus-description-hashtb
6681 (setq des (gnus-gethash (car groups)
6682 gnus-description-hashtb)))
6683 (insert " " des "\n"))))
6684 (setq groups (cdr groups)))
6685 (goto-char (point-min))))
6686 (pop-to-buffer obuf)))
6688 (defun gnus-group-description-apropos (regexp)
6689 "List all newsgroups that have names or descriptions that match a regexp."
6690 (interactive "sGnus description apropos (regexp): ")
6691 (if (not (or gnus-description-hashtb
6692 (gnus-read-all-descriptions-files)))
6693 (error "Couldn't request descriptions file"))
6694 (gnus-group-apropos regexp t))
6696 ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
6697 (defun gnus-group-list-matching (level regexp &optional all lowest)
6698 "List all groups with unread articles that match REGEXP.
6699 If the prefix LEVEL is non-nil, it should be a number that says which
6700 level to cut off listing groups.
6701 If ALL, also list groups with no unread articles.
6702 If LOWEST, don't list groups with level lower than LOWEST.
6704 This command may read the active file."
6705 (interactive "P\nsList newsgroups matching: ")
6706 ;; First make sure active file has been read.
6707 (when (and level
6708 (> (prefix-numeric-value level) gnus-level-killed))
6709 (gnus-get-killed-groups))
6710 (gnus-group-prepare-flat (or level gnus-level-subscribed)
6711 all (or lowest 1) regexp)
6712 (goto-char (point-min))
6713 (gnus-group-position-point))
6715 (defun gnus-group-list-all-matching (level regexp &optional lowest)
6716 "List all groups that match REGEXP.
6717 If the prefix LEVEL is non-nil, it should be a number that says which
6718 level to cut off listing groups.
6719 If LOWEST, don't list groups with level lower than LOWEST."
6720 (interactive "P\nsList newsgroups matching: ")
6721 (gnus-group-list-matching (or level gnus-level-killed) regexp t lowest))
6723 ;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
6724 (defun gnus-group-save-newsrc (&optional force)
6725 "Save the Gnus startup files.
6726 If FORCE, force saving whether it is necessary or not."
6727 (interactive "P")
6728 (gnus-save-newsrc-file force))
6730 (defun gnus-group-restart (&optional arg)
6731 "Force Gnus to read the .newsrc file."
6732 (interactive "P")
6733 (when (gnus-yes-or-no-p
6734 (format "Are you sure you want to read %s? "
6735 gnus-current-startup-file))
6736 (gnus-save-newsrc-file)
6737 (gnus-setup-news 'force)
6738 (gnus-group-list-groups arg)))
6740 (defun gnus-group-read-init-file ()
6741 "Read the Gnus elisp init file."
6742 (interactive)
6743 (gnus-read-init-file))
6745 (defun gnus-group-check-bogus-groups (&optional silent)
6746 "Check bogus newsgroups.
6747 If given a prefix, don't ask for confirmation before removing a bogus
6748 group."
6749 (interactive "P")
6750 (gnus-check-bogus-newsgroups (and (not silent) (not gnus-expert-user)))
6751 (gnus-group-list-groups))
6753 (defun gnus-group-edit-global-kill (&optional article group)
6754 "Edit the global kill file.
6755 If GROUP, edit that local kill file instead."
6756 (interactive "P")
6757 (setq gnus-current-kill-article article)
6758 (gnus-kill-file-edit-file group)
6759 (gnus-message
6761 (substitute-command-keys
6762 (format "Editing a %s kill file (Type \\[gnus-kill-file-exit] to exit)"
6763 (if group "local" "global")))))
6765 (defun gnus-group-edit-local-kill (article group)
6766 "Edit a local kill file."
6767 (interactive (list nil (gnus-group-group-name)))
6768 (gnus-group-edit-global-kill article group))
6770 (defun gnus-group-force-update ()
6771 "Update `.newsrc' file."
6772 (interactive)
6773 (gnus-save-newsrc-file))
6775 (defun gnus-group-suspend ()
6776 "Suspend the current Gnus session.
6777 In fact, cleanup buffers except for group mode buffer.
6778 The hook gnus-suspend-gnus-hook is called before actually suspending."
6779 (interactive)
6780 (run-hooks 'gnus-suspend-gnus-hook)
6781 ;; Kill Gnus buffers except for group mode buffer.
6782 (let* ((group-buf (get-buffer gnus-group-buffer))
6783 ;; Do this on a separate list in case the user does a ^G before we finish
6784 (gnus-buffer-list
6785 (delete group-buf (delete gnus-dribble-buffer
6786 (append gnus-buffer-list nil)))))
6787 (while gnus-buffer-list
6788 (gnus-kill-buffer (pop gnus-buffer-list)))
6789 (gnus-kill-gnus-frames)
6790 (when group-buf
6791 (setq gnus-buffer-list (list group-buf))
6792 (bury-buffer group-buf)
6793 (delete-windows-on group-buf t))))
6795 (defun gnus-group-clear-dribble ()
6796 "Clear all information from the dribble buffer."
6797 (interactive)
6798 (gnus-dribble-clear)
6799 (gnus-message 7 "Cleared dribble buffer"))
6801 (defun gnus-group-exit ()
6802 "Quit reading news after updating .newsrc.eld and .newsrc.
6803 The hook `gnus-exit-gnus-hook' is called before actually exiting."
6804 (interactive)
6805 (when
6806 (or noninteractive ;For gnus-batch-kill
6807 (not gnus-interactive-exit) ;Without confirmation
6808 gnus-expert-user
6809 (gnus-y-or-n-p "Are you sure you want to quit reading news? "))
6810 (run-hooks 'gnus-exit-gnus-hook)
6811 ;; Offer to save data from non-quitted summary buffers.
6812 (gnus-offer-save-summaries)
6813 ;; Save the newsrc file(s).
6814 (gnus-save-newsrc-file)
6815 ;; Kill-em-all.
6816 (gnus-close-backends)
6817 ;; Reset everything.
6818 (gnus-clear-system)
6819 ;; Allow the user to do things after cleaning up.
6820 (run-hooks 'gnus-after-exiting-gnus-hook)))
6822 (defun gnus-close-backends ()
6823 ;; Send a close request to all backends that support such a request.
6824 (let ((methods gnus-valid-select-methods)
6825 func)
6826 (while methods
6827 (if (fboundp (setq func (intern (concat (caar methods)
6828 "-request-close"))))
6829 (funcall func))
6830 (setq methods (cdr methods)))))
6832 (defun gnus-group-quit ()
6833 "Quit reading news without updating .newsrc.eld or .newsrc.
6834 The hook `gnus-exit-gnus-hook' is called before actually exiting."
6835 (interactive)
6836 (when (or noninteractive ;For gnus-batch-kill
6837 (zerop (buffer-size))
6838 (not (gnus-server-opened gnus-select-method))
6839 gnus-expert-user
6840 (not gnus-current-startup-file)
6841 (gnus-yes-or-no-p
6842 (format "Quit reading news without saving %s? "
6843 (file-name-nondirectory gnus-current-startup-file))))
6844 (run-hooks 'gnus-exit-gnus-hook)
6845 (if gnus-use-full-window
6846 (delete-other-windows)
6847 (gnus-remove-some-windows))
6848 (gnus-dribble-save)
6849 (gnus-close-backends)
6850 (gnus-clear-system)
6851 ;; Allow the user to do things after cleaning up.
6852 (run-hooks 'gnus-after-exiting-gnus-hook)))
6854 (defun gnus-offer-save-summaries ()
6855 "Offer to save all active summary buffers."
6856 (save-excursion
6857 (let ((buflist (buffer-list))
6858 buffers bufname)
6859 ;; Go through all buffers and find all summaries.
6860 (while buflist
6861 (and (setq bufname (buffer-name (car buflist)))
6862 (string-match "Summary" bufname)
6863 (save-excursion
6864 (set-buffer bufname)
6865 ;; We check that this is, indeed, a summary buffer.
6866 (and (eq major-mode 'gnus-summary-mode)
6867 ;; Also make sure this isn't bogus.
6868 gnus-newsgroup-prepared))
6869 (push bufname buffers))
6870 (setq buflist (cdr buflist)))
6871 ;; Go through all these summary buffers and offer to save them.
6872 (when buffers
6873 (map-y-or-n-p
6874 "Update summary buffer %s? "
6875 (lambda (buf) (set-buffer buf) (gnus-summary-exit))
6876 buffers)))))
6878 (defun gnus-group-describe-briefly ()
6879 "Give a one line description of the group mode commands."
6880 (interactive)
6881 (gnus-message 7 (substitute-command-keys "\\<gnus-group-mode-map>\\[gnus-group-read-group]:Select \\[gnus-group-next-unread-group]:Forward \\[gnus-group-prev-unread-group]:Backward \\[gnus-group-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-group-describe-briefly]:This help")))
6883 (defun gnus-group-browse-foreign-server (method)
6884 "Browse a foreign news server.
6885 If called interactively, this function will ask for a select method
6886 (nntp, nnspool, etc.) and a server address (eg. nntp.some.where).
6887 If not, METHOD should be a list where the first element is the method
6888 and the second element is the address."
6889 (interactive
6890 (list (let ((how (completing-read
6891 "Which backend: "
6892 (append gnus-valid-select-methods gnus-server-alist)
6893 nil t (cons "nntp" 0) 'gnus-method-history)))
6894 ;; We either got a backend name or a virtual server name.
6895 ;; If the first, we also need an address.
6896 (if (assoc how gnus-valid-select-methods)
6897 (list (intern how)
6898 ;; Suggested by mapjph@bath.ac.uk.
6899 (completing-read
6900 "Address: "
6901 (mapcar (lambda (server) (list server))
6902 gnus-secondary-servers)))
6903 ;; We got a server name, so we find the method.
6904 (gnus-server-to-method how)))))
6905 (gnus-browse-foreign-server method))
6909 ;;; Gnus summary mode
6912 (defvar gnus-summary-mode-map nil)
6914 (put 'gnus-summary-mode 'mode-class 'special)
6916 (unless gnus-summary-mode-map
6917 (setq gnus-summary-mode-map (make-keymap))
6918 (suppress-keymap gnus-summary-mode-map)
6920 ;; Non-orthogonal keys
6922 (gnus-define-keys gnus-summary-mode-map
6923 " " gnus-summary-next-page
6924 "\177" gnus-summary-prev-page
6925 [delete] gnus-summary-prev-page
6926 "\r" gnus-summary-scroll-up
6927 "n" gnus-summary-next-unread-article
6928 "p" gnus-summary-prev-unread-article
6929 "N" gnus-summary-next-article
6930 "P" gnus-summary-prev-article
6931 "\M-\C-n" gnus-summary-next-same-subject
6932 "\M-\C-p" gnus-summary-prev-same-subject
6933 "\M-n" gnus-summary-next-unread-subject
6934 "\M-p" gnus-summary-prev-unread-subject
6935 "." gnus-summary-first-unread-article
6936 "," gnus-summary-best-unread-article
6937 "\M-s" gnus-summary-search-article-forward
6938 "\M-r" gnus-summary-search-article-backward
6939 "<" gnus-summary-beginning-of-article
6940 ">" gnus-summary-end-of-article
6941 "j" gnus-summary-goto-article
6942 "^" gnus-summary-refer-parent-article
6943 "\M-^" gnus-summary-refer-article
6944 "u" gnus-summary-tick-article-forward
6945 "!" gnus-summary-tick-article-forward
6946 "U" gnus-summary-tick-article-backward
6947 "d" gnus-summary-mark-as-read-forward
6948 "D" gnus-summary-mark-as-read-backward
6949 "E" gnus-summary-mark-as-expirable
6950 "\M-u" gnus-summary-clear-mark-forward
6951 "\M-U" gnus-summary-clear-mark-backward
6952 "k" gnus-summary-kill-same-subject-and-select
6953 "\C-k" gnus-summary-kill-same-subject
6954 "\M-\C-k" gnus-summary-kill-thread
6955 "\M-\C-l" gnus-summary-lower-thread
6956 "e" gnus-summary-edit-article
6957 "#" gnus-summary-mark-as-processable
6958 "\M-#" gnus-summary-unmark-as-processable
6959 "\M-\C-t" gnus-summary-toggle-threads
6960 "\M-\C-s" gnus-summary-show-thread
6961 "\M-\C-h" gnus-summary-hide-thread
6962 "\M-\C-f" gnus-summary-next-thread
6963 "\M-\C-b" gnus-summary-prev-thread
6964 "\M-\C-u" gnus-summary-up-thread
6965 "\M-\C-d" gnus-summary-down-thread
6966 "&" gnus-summary-execute-command
6967 "c" gnus-summary-catchup-and-exit
6968 "\C-w" gnus-summary-mark-region-as-read
6969 "\C-t" gnus-summary-toggle-truncation
6970 "?" gnus-summary-mark-as-dormant
6971 "\C-c\M-\C-s" gnus-summary-limit-include-expunged
6972 "\C-c\C-s\C-n" gnus-summary-sort-by-number
6973 "\C-c\C-s\C-a" gnus-summary-sort-by-author
6974 "\C-c\C-s\C-s" gnus-summary-sort-by-subject
6975 "\C-c\C-s\C-d" gnus-summary-sort-by-date
6976 "\C-c\C-s\C-i" gnus-summary-sort-by-score
6977 "=" gnus-summary-expand-window
6978 "\C-x\C-s" gnus-summary-reselect-current-group
6979 "\M-g" gnus-summary-rescan-group
6980 "w" gnus-summary-stop-page-breaking
6981 "\C-c\C-r" gnus-summary-caesar-message
6982 "\M-t" gnus-summary-toggle-mime
6983 "f" gnus-summary-followup
6984 "F" gnus-summary-followup-with-original
6985 "C" gnus-summary-cancel-article
6986 "r" gnus-summary-reply
6987 "R" gnus-summary-reply-with-original
6988 "\C-c\C-f" gnus-summary-mail-forward
6989 "o" gnus-summary-save-article
6990 "\C-o" gnus-summary-save-article-mail
6991 "|" gnus-summary-pipe-output
6992 "\M-k" gnus-summary-edit-local-kill
6993 "\M-K" gnus-summary-edit-global-kill
6994 "V" gnus-version
6995 "\C-c\C-d" gnus-summary-describe-group
6996 "q" gnus-summary-exit
6997 "Q" gnus-summary-exit-no-update
6998 "\C-c\C-i" gnus-info-find-node
6999 gnus-mouse-2 gnus-mouse-pick-article
7000 "m" gnus-summary-mail-other-window
7001 "a" gnus-summary-post-news
7002 "x" gnus-summary-limit-to-unread
7003 "s" gnus-summary-isearch-article
7004 "t" gnus-article-hide-headers
7005 "g" gnus-summary-show-article
7006 "l" gnus-summary-goto-last-article
7007 "\C-c\C-v\C-v" gnus-uu-decode-uu-view
7008 "\C-d" gnus-summary-enter-digest-group
7009 "\C-c\C-b" gnus-bug
7010 "*" gnus-cache-enter-article
7011 "\M-*" gnus-cache-remove-article
7012 "\M-&" gnus-summary-universal-argument
7013 "\C-l" gnus-recenter
7014 "I" gnus-summary-increase-score
7015 "L" gnus-summary-lower-score
7017 "V" gnus-summary-score-map
7018 "X" gnus-uu-extract-map
7019 "S" gnus-summary-send-map)
7021 ;; Sort of orthogonal keymap
7022 (gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
7023 "t" gnus-summary-tick-article-forward
7024 "!" gnus-summary-tick-article-forward
7025 "d" gnus-summary-mark-as-read-forward
7026 "r" gnus-summary-mark-as-read-forward
7027 "c" gnus-summary-clear-mark-forward
7028 " " gnus-summary-clear-mark-forward
7029 "e" gnus-summary-mark-as-expirable
7030 "x" gnus-summary-mark-as-expirable
7031 "?" gnus-summary-mark-as-dormant
7032 "b" gnus-summary-set-bookmark
7033 "B" gnus-summary-remove-bookmark
7034 "#" gnus-summary-mark-as-processable
7035 "\M-#" gnus-summary-unmark-as-processable
7036 "S" gnus-summary-limit-include-expunged
7037 "C" gnus-summary-catchup
7038 "H" gnus-summary-catchup-to-here
7039 "\C-c" gnus-summary-catchup-all
7040 "k" gnus-summary-kill-same-subject-and-select
7041 "K" gnus-summary-kill-same-subject
7042 "P" gnus-uu-mark-map)
7044 (gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mode-map)
7045 "c" gnus-summary-clear-above
7046 "u" gnus-summary-tick-above
7047 "m" gnus-summary-mark-above
7048 "k" gnus-summary-kill-below)
7050 (gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
7051 "/" gnus-summary-limit-to-subject
7052 "n" gnus-summary-limit-to-articles
7053 "w" gnus-summary-pop-limit
7054 "s" gnus-summary-limit-to-subject
7055 "a" gnus-summary-limit-to-author
7056 "u" gnus-summary-limit-to-unread
7057 "m" gnus-summary-limit-to-marks
7058 "v" gnus-summary-limit-to-score
7059 "D" gnus-summary-limit-include-dormant
7060 "d" gnus-summary-limit-exclude-dormant
7061 ;; "t" gnus-summary-limit-exclude-thread
7062 "E" gnus-summary-limit-include-expunged
7063 "c" gnus-summary-limit-exclude-childless-dormant
7064 "C" gnus-summary-limit-mark-excluded-as-read)
7066 (gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
7067 "n" gnus-summary-next-unread-article
7068 "p" gnus-summary-prev-unread-article
7069 "N" gnus-summary-next-article
7070 "P" gnus-summary-prev-article
7071 "\C-n" gnus-summary-next-same-subject
7072 "\C-p" gnus-summary-prev-same-subject
7073 "\M-n" gnus-summary-next-unread-subject
7074 "\M-p" gnus-summary-prev-unread-subject
7075 "f" gnus-summary-first-unread-article
7076 "b" gnus-summary-best-unread-article
7077 "j" gnus-summary-goto-article
7078 "g" gnus-summary-goto-subject
7079 "l" gnus-summary-goto-last-article
7080 "p" gnus-summary-pop-article)
7082 (gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
7083 "k" gnus-summary-kill-thread
7084 "l" gnus-summary-lower-thread
7085 "i" gnus-summary-raise-thread
7086 "T" gnus-summary-toggle-threads
7087 "t" gnus-summary-rethread-current
7088 "^" gnus-summary-reparent-thread
7089 "s" gnus-summary-show-thread
7090 "S" gnus-summary-show-all-threads
7091 "h" gnus-summary-hide-thread
7092 "H" gnus-summary-hide-all-threads
7093 "n" gnus-summary-next-thread
7094 "p" gnus-summary-prev-thread
7095 "u" gnus-summary-up-thread
7096 "o" gnus-summary-top-thread
7097 "d" gnus-summary-down-thread
7098 "#" gnus-uu-mark-thread
7099 "\M-#" gnus-uu-unmark-thread)
7101 (gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
7102 "c" gnus-summary-catchup-and-exit
7103 "C" gnus-summary-catchup-all-and-exit
7104 "E" gnus-summary-exit-no-update
7105 "Q" gnus-summary-exit
7106 "Z" gnus-summary-exit
7107 "n" gnus-summary-catchup-and-goto-next-group
7108 "R" gnus-summary-reselect-current-group
7109 "G" gnus-summary-rescan-group
7110 "N" gnus-summary-next-group
7111 "P" gnus-summary-prev-group)
7113 (gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
7114 " " gnus-summary-next-page
7115 "n" gnus-summary-next-page
7116 "\177" gnus-summary-prev-page
7117 [delete] gnus-summary-prev-page
7118 "p" gnus-summary-prev-page
7119 "\r" gnus-summary-scroll-up
7120 "<" gnus-summary-beginning-of-article
7121 ">" gnus-summary-end-of-article
7122 "b" gnus-summary-beginning-of-article
7123 "e" gnus-summary-end-of-article
7124 "^" gnus-summary-refer-parent-article
7125 "r" gnus-summary-refer-parent-article
7126 "R" gnus-summary-refer-references
7127 "g" gnus-summary-show-article
7128 "s" gnus-summary-isearch-article)
7130 (gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
7131 "b" gnus-article-add-buttons
7132 "B" gnus-article-add-buttons-to-head
7133 "o" gnus-article-treat-overstrike
7134 ;; "w" gnus-article-word-wrap
7135 "w" gnus-article-fill-cited-article
7136 "c" gnus-article-remove-cr
7137 "L" gnus-article-remove-trailing-blank-lines
7138 "q" gnus-article-de-quoted-unreadable
7139 "f" gnus-article-display-x-face
7140 "l" gnus-summary-stop-page-breaking
7141 "r" gnus-summary-caesar-message
7142 "t" gnus-article-hide-headers
7143 "v" gnus-summary-verbose-headers
7144 "m" gnus-summary-toggle-mime)
7146 (gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
7147 "a" gnus-article-hide
7148 "h" gnus-article-hide-headers
7149 "b" gnus-article-hide-boring-headers
7150 "s" gnus-article-hide-signature
7151 "c" gnus-article-hide-citation
7152 "p" gnus-article-hide-pgp
7153 "\C-c" gnus-article-hide-citation-maybe)
7155 (gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
7156 "a" gnus-article-highlight
7157 "h" gnus-article-highlight-headers
7158 "c" gnus-article-highlight-citation
7159 "s" gnus-article-highlight-signature)
7161 (gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
7162 "z" gnus-article-date-ut
7163 "u" gnus-article-date-ut
7164 "l" gnus-article-date-local
7165 "e" gnus-article-date-lapsed
7166 "o" gnus-article-date-original)
7168 (gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
7169 "v" gnus-version
7170 "f" gnus-summary-fetch-faq
7171 "d" gnus-summary-describe-group
7172 "h" gnus-summary-describe-briefly
7173 "i" gnus-info-find-node)
7175 (gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
7176 "e" gnus-summary-expire-articles
7177 "\M-\C-e" gnus-summary-expire-articles-now
7178 "\177" gnus-summary-delete-article
7179 [delete] gnus-summary-delete-article
7180 "m" gnus-summary-move-article
7181 "r" gnus-summary-respool-article
7182 "w" gnus-summary-edit-article
7183 "c" gnus-summary-copy-article
7184 "B" gnus-summary-crosspost-article
7185 "q" gnus-summary-respool-query
7186 "i" gnus-summary-import-article)
7188 (gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
7189 "o" gnus-summary-save-article
7190 "m" gnus-summary-save-article-mail
7191 "r" gnus-summary-save-article-rmail
7192 "f" gnus-summary-save-article-file
7193 "b" gnus-summary-save-article-body-file
7194 "h" gnus-summary-save-article-folder
7195 "v" gnus-summary-save-article-vm
7196 "p" gnus-summary-pipe-output
7197 "s" gnus-soup-add-article)
7202 (defun gnus-summary-mode (&optional group)
7203 "Major mode for reading articles.
7205 All normal editing commands are switched off.
7206 \\<gnus-summary-mode-map>
7207 Each line in this buffer represents one article. To read an
7208 article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
7209 and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
7210 respectively.
7212 You can also post articles and send mail from this buffer. To
7213 follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
7214 of an article, type `\\[gnus-summary-reply]'.
7216 There are approx. one gazillion commands you can execute in this
7217 buffer; read the info pages for more information (`\\[gnus-info-find-node]').
7219 The following commands are available:
7221 \\{gnus-summary-mode-map}"
7222 (interactive)
7223 (when (and menu-bar-mode
7224 (gnus-visual-p 'summary-menu 'menu))
7225 (gnus-summary-make-menu-bar))
7226 (kill-all-local-variables)
7227 (gnus-summary-make-local-variables)
7228 (gnus-make-thread-indent-array)
7229 (gnus-simplify-mode-line)
7230 (setq major-mode 'gnus-summary-mode)
7231 (setq mode-name "Summary")
7232 (make-local-variable 'minor-mode-alist)
7233 (use-local-map gnus-summary-mode-map)
7234 (buffer-disable-undo (current-buffer))
7235 (setq buffer-read-only t) ;Disable modification
7236 (setq truncate-lines t)
7237 (setq selective-display t)
7238 (setq selective-display-ellipses t) ;Display `...'
7239 (setq buffer-display-table gnus-summary-display-table)
7240 (setq gnus-newsgroup-name group)
7241 (make-local-variable 'gnus-summary-line-format)
7242 (make-local-variable 'gnus-summary-line-format-spec)
7243 (make-local-variable 'gnus-summary-mark-positions)
7244 (gnus-make-local-hook 'post-command-hook)
7245 (gnus-add-hook 'post-command-hook 'gnus-clear-inboxes-moved nil t)
7246 (run-hooks 'gnus-summary-mode-hook))
7248 (defun gnus-summary-make-local-variables ()
7249 "Make all the local summary buffer variables."
7250 (let ((locals gnus-summary-local-variables)
7251 global local)
7252 (while (setq local (pop locals))
7253 (if (consp local)
7254 (progn
7255 (if (eq (cdr local) 'global)
7256 ;; Copy the global value of the variable.
7257 (setq global (symbol-value (car local)))
7258 ;; Use the value from the list.
7259 (setq global (eval (cdr local))))
7260 (make-local-variable (car local))
7261 (set (car local) global))
7262 ;; Simple nil-valued local variable.
7263 (make-local-variable local)
7264 (set local nil)))))
7266 (defun gnus-summary-make-display-table ()
7267 ;; Change the display table. Odd characters have a tendency to mess
7268 ;; up nicely formatted displays - we make all possible glyphs
7269 ;; display only a single character.
7271 ;; We start from the standard display table, if any.
7272 (setq gnus-summary-display-table
7273 (or (copy-sequence standard-display-table)
7274 (make-display-table)))
7275 ;; Nix out all the control chars...
7276 (let ((i 32))
7277 (while (>= (setq i (1- i)) 0)
7278 (aset gnus-summary-display-table i [??])))
7279 ;; ... but not newline and cr, of course. (cr is necessary for the
7280 ;; selective display).
7281 (aset gnus-summary-display-table ?\n nil)
7282 (aset gnus-summary-display-table ?\r nil)
7283 ;; We nix out any glyphs over 126 that are not set already.
7284 (let ((i 256))
7285 (while (>= (setq i (1- i)) 127)
7286 ;; Only modify if the entry is nil.
7287 (or (aref gnus-summary-display-table i)
7288 (aset gnus-summary-display-table i [??])))))
7290 (defun gnus-summary-clear-local-variables ()
7291 (let ((locals gnus-summary-local-variables))
7292 (while locals
7293 (if (consp (car locals))
7294 (and (vectorp (caar locals))
7295 (set (caar locals) nil))
7296 (and (vectorp (car locals))
7297 (set (car locals) nil)))
7298 (setq locals (cdr locals)))))
7300 ;; Summary data functions.
7302 (defmacro gnus-data-number (data)
7303 `(car ,data))
7305 (defmacro gnus-data-set-number (data number)
7306 `(setcar ,data ,number))
7308 (defmacro gnus-data-mark (data)
7309 `(nth 1 ,data))
7311 (defmacro gnus-data-set-mark (data mark)
7312 `(setcar (nthcdr 1 ,data) ,mark))
7314 (defmacro gnus-data-pos (data)
7315 `(nth 2 ,data))
7317 (defmacro gnus-data-set-pos (data pos)
7318 `(setcar (nthcdr 2 ,data) ,pos))
7320 (defmacro gnus-data-header (data)
7321 `(nth 3 ,data))
7323 (defmacro gnus-data-level (data)
7324 `(nth 4 ,data))
7326 (defmacro gnus-data-unread-p (data)
7327 `(= (nth 1 ,data) gnus-unread-mark))
7329 (defmacro gnus-data-pseudo-p (data)
7330 `(consp (nth 3 ,data)))
7332 (defmacro gnus-data-find (number)
7333 `(assq ,number gnus-newsgroup-data))
7335 (defmacro gnus-data-find-list (number &optional data)
7336 `(let ((bdata ,(or data 'gnus-newsgroup-data)))
7337 (memq (assq ,number bdata)
7338 bdata)))
7340 (defmacro gnus-data-make (number mark pos header level)
7341 `(list ,number ,mark ,pos ,header ,level))
7343 (defun gnus-data-enter (after-article number mark pos header level offset)
7344 (let ((data (gnus-data-find-list after-article)))
7345 (or data (error "No such article: %d" after-article))
7346 (setcdr data (cons (gnus-data-make number mark pos header level)
7347 (cdr data)))
7348 (setq gnus-newsgroup-data-reverse nil)
7349 (gnus-data-update-list (cddr data) offset)))
7351 (defun gnus-data-enter-list (after-article list &optional offset)
7352 (when list
7353 (let ((data (and after-article (gnus-data-find-list after-article)))
7354 (ilist list))
7355 (or data (not after-article) (error "No such article: %d" after-article))
7356 ;; Find the last element in the list to be spliced into the main
7357 ;; list.
7358 (while (cdr list)
7359 (setq list (cdr list)))
7360 (if (not data)
7361 (progn
7362 (setcdr list gnus-newsgroup-data)
7363 (setq gnus-newsgroup-data ilist)
7364 (and offset (gnus-data-update-list (cdr list) offset)))
7365 (setcdr list (cdr data))
7366 (setcdr data ilist)
7367 (and offset (gnus-data-update-list (cdr data) offset)))
7368 (setq gnus-newsgroup-data-reverse nil))))
7370 (defun gnus-data-remove (article &optional offset)
7371 (let ((data gnus-newsgroup-data))
7372 (if (= (gnus-data-number (car data)) article)
7373 (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
7374 gnus-newsgroup-data-reverse nil)
7375 (while (cdr data)
7376 (and (= (gnus-data-number (cadr data)) article)
7377 (progn
7378 (setcdr data (cddr data))
7379 (and offset (gnus-data-update-list (cdr data) offset))
7380 (setq data nil
7381 gnus-newsgroup-data-reverse nil)))
7382 (setq data (cdr data))))))
7384 (defmacro gnus-data-list (backward)
7385 `(if ,backward
7386 (or gnus-newsgroup-data-reverse
7387 (setq gnus-newsgroup-data-reverse
7388 (reverse gnus-newsgroup-data)))
7389 gnus-newsgroup-data))
7391 (defun gnus-data-update-list (data offset)
7392 "Add OFFSET to the POS of all data entries in DATA."
7393 (while data
7394 (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
7395 (setq data (cdr data))))
7397 (defun gnus-data-compute-positions ()
7398 "Compute the positions of all articles."
7399 (let ((data gnus-newsgroup-data)
7400 pos)
7401 (while data
7402 (when (setq pos (text-property-any
7403 (point-min) (point-max)
7404 'gnus-number (gnus-data-number (car data))))
7405 (gnus-data-set-pos (car data) (+ pos 3)))
7406 (setq data (cdr data)))))
7408 (defun gnus-summary-article-pseudo-p (article)
7409 "Say whether this article is a pseudo article or not."
7410 (not (vectorp (gnus-data-header (gnus-data-find article)))))
7412 (defun gnus-article-parent-p (number)
7413 "Say whether this article is a parent or not."
7414 (let ((data (gnus-data-find-list number)))
7415 (and (cdr data) ; There has to be an article after...
7416 (< (gnus-data-level (car data)) ; And it has to have a higher level.
7417 (gnus-data-level (nth 1 data))))))
7419 (defun gnus-article-children (number)
7420 "Return a list of all children to NUMBER."
7421 (let* ((data (gnus-data-find-list number))
7422 (level (gnus-data-level (car data)))
7423 children)
7424 (setq data (cdr data))
7425 (while (and data
7426 (= (gnus-data-level (car data)) (1+ level)))
7427 (push (gnus-data-number (car data)) children)
7428 (setq data (cdr data)))
7429 children))
7431 (defmacro gnus-summary-skip-intangible ()
7432 "If the current article is intangible, then jump to a different article."
7433 '(let ((to (get-text-property (point) 'gnus-intangible)))
7434 (and to (gnus-summary-goto-subject to))))
7436 (defmacro gnus-summary-article-intangible-p ()
7437 "Say whether this article is intangible or not."
7438 '(get-text-property (point) 'gnus-intangible))
7440 ;; Some summary mode macros.
7442 (defmacro gnus-summary-article-number ()
7443 "The article number of the article on the current line.
7444 If there isn's an article number here, then we return the current
7445 article number."
7446 '(progn
7447 (gnus-summary-skip-intangible)
7448 (or (get-text-property (point) 'gnus-number)
7449 (gnus-summary-last-subject))))
7451 (defmacro gnus-summary-article-header (&optional number)
7452 `(gnus-data-header (gnus-data-find
7453 ,(or number '(gnus-summary-article-number)))))
7455 (defmacro gnus-summary-thread-level (&optional number)
7456 `(if (and (eq gnus-summary-make-false-root 'dummy)
7457 (get-text-property (point) 'gnus-intangible))
7459 (gnus-data-level (gnus-data-find
7460 ,(or number '(gnus-summary-article-number))))))
7462 (defmacro gnus-summary-article-mark (&optional number)
7463 `(gnus-data-mark (gnus-data-find
7464 ,(or number '(gnus-summary-article-number)))))
7466 (defmacro gnus-summary-article-pos (&optional number)
7467 `(gnus-data-pos (gnus-data-find
7468 ,(or number '(gnus-summary-article-number)))))
7470 (defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
7471 (defmacro gnus-summary-article-subject (&optional number)
7472 "Return current subject string or nil if nothing."
7473 `(let ((headers
7474 ,(if number
7475 `(gnus-data-header (assq ,number gnus-newsgroup-data))
7476 '(gnus-data-header (assq (gnus-summary-article-number)
7477 gnus-newsgroup-data)))))
7478 (and headers
7479 (vectorp headers)
7480 (mail-header-subject headers))))
7482 (defmacro gnus-summary-article-score (&optional number)
7483 "Return current article score."
7484 `(or (cdr (assq ,(or number '(gnus-summary-article-number))
7485 gnus-newsgroup-scored))
7486 gnus-summary-default-score 0))
7488 (defun gnus-summary-article-children (&optional number)
7489 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
7490 (level (gnus-data-level (car data)))
7491 l children)
7492 (while (and (setq data (cdr data))
7493 (> (setq l (gnus-data-level (car data))) level))
7494 (and (= (1+ level) l)
7495 (setq children (cons (gnus-data-number (car data))
7496 children))))
7497 (nreverse children)))
7499 (defun gnus-summary-article-parent (&optional number)
7500 (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
7501 (gnus-data-list t)))
7502 (level (gnus-data-level (car data))))
7503 (if (zerop level)
7504 () ; This is a root.
7505 ;; We search until we find an article with a level less than
7506 ;; this one. That function has to be the parent.
7507 (while (and (setq data (cdr data))
7508 (not (< (gnus-data-level (car data)) level))))
7509 (and data (gnus-data-number (car data))))))
7511 (defun gnus-unread-mark-p (mark)
7512 "Say whether MARK is the unread mark."
7513 (= mark gnus-unread-mark))
7515 (defun gnus-read-mark-p (mark)
7516 "Say whether MARK is one of the marks that mark as read.
7517 This is all marks except unread, ticked, dormant, and expirable."
7518 (not (or (= mark gnus-unread-mark)
7519 (= mark gnus-ticked-mark)
7520 (= mark gnus-dormant-mark)
7521 (= mark gnus-expirable-mark))))
7523 ;; Saving hidden threads.
7525 (put 'gnus-save-hidden-threads 'lisp-indent-function 0)
7526 (put 'gnus-save-hidden-threads 'lisp-indent-hook 0)
7527 (put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
7529 (defmacro gnus-save-hidden-threads (&rest forms)
7530 "Save hidden threads, eval FORMS, and restore the hidden threads."
7531 (let ((config (make-symbol "config")))
7532 `(let ((,config (gnus-hidden-threads-configuration)))
7533 (unwind-protect
7534 (progn
7535 ,@forms)
7536 (gnus-restore-hidden-threads-configuration ,config)))))
7538 (defun gnus-hidden-threads-configuration ()
7539 "Return the current hidden threads configuration."
7540 (save-excursion
7541 (let (config)
7542 (goto-char (point-min))
7543 (while (search-forward "\r" nil t)
7544 (push (1- (point)) config))
7545 config)))
7547 (defun gnus-restore-hidden-threads-configuration (config)
7548 "Restore hidden threads configuration from CONFIG."
7549 (let (point buffer-read-only)
7550 (while (setq point (pop config))
7551 (when (and (< point (point-max))
7552 (goto-char point)
7553 (= (following-char) ?\n))
7554 (subst-char-in-region point (1+ point) ?\n ?\r)))))
7556 ;; Various summary mode internalish functions.
7558 (defun gnus-mouse-pick-article (e)
7559 (interactive "e")
7560 (mouse-set-point e)
7561 (gnus-summary-next-page nil t))
7563 (defun gnus-summary-setup-buffer (group)
7564 "Initialize summary buffer."
7565 (let ((buffer (concat "*Summary " group "*")))
7566 (if (get-buffer buffer)
7567 (progn
7568 (set-buffer buffer)
7569 (setq gnus-summary-buffer (current-buffer))
7570 (not gnus-newsgroup-prepared))
7571 ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
7572 (setq gnus-summary-buffer (set-buffer (get-buffer-create buffer)))
7573 (gnus-add-current-to-buffer-list)
7574 (gnus-summary-mode group)
7575 (when gnus-carpal
7576 (gnus-carpal-setup-buffer 'summary))
7577 (unless gnus-single-article-buffer
7578 (make-local-variable 'gnus-article-buffer)
7579 (make-local-variable 'gnus-article-current)
7580 (make-local-variable 'gnus-original-article-buffer))
7581 (setq gnus-newsgroup-name group)
7582 t)))
7584 (defun gnus-set-global-variables ()
7585 ;; Set the global equivalents of the summary buffer-local variables
7586 ;; to the latest values they had. These reflect the summary buffer
7587 ;; that was in action when the last article was fetched.
7588 (when (eq major-mode 'gnus-summary-mode)
7589 (setq gnus-summary-buffer (current-buffer))
7590 (let ((name gnus-newsgroup-name)
7591 (marked gnus-newsgroup-marked)
7592 (unread gnus-newsgroup-unreads)
7593 (headers gnus-current-headers)
7594 (data gnus-newsgroup-data)
7595 (summary gnus-summary-buffer)
7596 (article-buffer gnus-article-buffer)
7597 (original gnus-original-article-buffer)
7598 (gac gnus-article-current)
7599 (score-file gnus-current-score-file))
7600 (save-excursion
7601 (set-buffer gnus-group-buffer)
7602 (setq gnus-newsgroup-name name)
7603 (setq gnus-newsgroup-marked marked)
7604 (setq gnus-newsgroup-unreads unread)
7605 (setq gnus-current-headers headers)
7606 (setq gnus-newsgroup-data data)
7607 (setq gnus-article-current gac)
7608 (setq gnus-summary-buffer summary)
7609 (setq gnus-article-buffer article-buffer)
7610 (setq gnus-original-article-buffer original)
7611 (setq gnus-current-score-file score-file)))))
7613 (defun gnus-summary-last-article-p (&optional article)
7614 "Return whether ARTICLE is the last article in the buffer."
7615 (if (not (setq article (or article (gnus-summary-article-number))))
7616 t ; All non-existant numbers are the last article. :-)
7617 (not (cdr (gnus-data-find-list article)))))
7619 (defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
7620 "Insert a dummy root in the summary buffer."
7621 (beginning-of-line)
7622 (gnus-add-text-properties
7623 (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
7624 (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
7626 (defun gnus-make-thread-indent-array ()
7627 (let ((n 200))
7628 (unless (and gnus-thread-indent-array
7629 (= gnus-thread-indent-level gnus-thread-indent-array-level))
7630 (setq gnus-thread-indent-array (make-vector 201 "")
7631 gnus-thread-indent-array-level gnus-thread-indent-level)
7632 (while (>= n 0)
7633 (aset gnus-thread-indent-array n
7634 (make-string (* n gnus-thread-indent-level) ? ))
7635 (setq n (1- n))))))
7637 (defun gnus-summary-insert-line
7638 (gnus-tmp-header gnus-tmp-level gnus-tmp-current gnus-tmp-unread
7639 gnus-tmp-replied gnus-tmp-expirable gnus-tmp-subject-or-nil
7640 &optional gnus-tmp-dummy gnus-tmp-score gnus-tmp-process)
7641 (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
7642 (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
7643 (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
7644 (gnus-tmp-score-char
7645 (if (or (null gnus-summary-default-score)
7646 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
7647 gnus-summary-zcore-fuzz)) ?
7648 (if (< gnus-tmp-score gnus-summary-default-score)
7649 gnus-score-below-mark gnus-score-over-mark)))
7650 (gnus-tmp-replied (cond (gnus-tmp-process gnus-process-mark)
7651 ((memq gnus-tmp-current gnus-newsgroup-cached)
7652 gnus-cached-mark)
7653 (gnus-tmp-replied gnus-replied-mark)
7654 ((memq gnus-tmp-current gnus-newsgroup-saved)
7655 gnus-saved-mark)
7656 (t gnus-unread-mark)))
7657 (gnus-tmp-from (mail-header-from gnus-tmp-header))
7658 (gnus-tmp-name
7659 (cond
7660 ((string-match "(.+)" gnus-tmp-from)
7661 (substring gnus-tmp-from
7662 (1+ (match-beginning 0)) (1- (match-end 0))))
7663 ((string-match "<[^>]+> *$" gnus-tmp-from)
7664 (let ((beg (match-beginning 0)))
7665 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
7666 (substring gnus-tmp-from (1+ (match-beginning 0))
7667 (1- (match-end 0))))
7668 (substring gnus-tmp-from 0 beg))))
7669 (t gnus-tmp-from)))
7670 (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
7671 (gnus-tmp-number (mail-header-number gnus-tmp-header))
7672 (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
7673 (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
7674 (buffer-read-only nil))
7675 (when (string= gnus-tmp-name "")
7676 (setq gnus-tmp-name gnus-tmp-from))
7677 (or (numberp gnus-tmp-lines) (setq gnus-tmp-lines 0))
7678 (gnus-put-text-property
7679 (point)
7680 (progn (eval gnus-summary-line-format-spec) (point))
7681 'gnus-number gnus-tmp-number)
7682 (when (gnus-visual-p 'summary-highlight 'highlight)
7683 (forward-line -1)
7684 (run-hooks 'gnus-summary-update-hook)
7685 (forward-line 1))))
7687 (defun gnus-summary-update-line (&optional dont-update)
7688 ;; Update summary line after change.
7689 (when (and gnus-summary-default-score
7690 (not gnus-summary-inhibit-highlight))
7691 (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
7692 (article (gnus-summary-article-number))
7693 (score (gnus-summary-article-score article)))
7694 (unless dont-update
7695 (if (and gnus-summary-mark-below
7696 (< (gnus-summary-article-score)
7697 gnus-summary-mark-below))
7698 ;; This article has a low score, so we mark it as read.
7699 (when (memq article gnus-newsgroup-unreads)
7700 (gnus-summary-mark-article-as-read gnus-low-score-mark))
7701 (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
7702 ;; This article was previously marked as read on account
7703 ;; of a low score, but now it has risen, so we mark it as
7704 ;; unread.
7705 (gnus-summary-mark-article-as-unread gnus-unread-mark)))
7706 (gnus-summary-update-mark
7707 (if (or (null gnus-summary-default-score)
7708 (<= (abs (- score gnus-summary-default-score))
7709 gnus-summary-zcore-fuzz)) ?
7710 (if (< score gnus-summary-default-score)
7711 gnus-score-below-mark gnus-score-over-mark)) 'score))
7712 ;; Do visual highlighting.
7713 (when (gnus-visual-p 'summary-highlight 'highlight)
7714 (run-hooks 'gnus-summary-update-hook)))))
7716 (defvar gnus-tmp-new-adopts nil)
7718 (defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
7719 ;; Sum up all elements (and sub-elements) in a list.
7720 (let* ((number
7721 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
7722 (cond
7723 ((and (consp thread) (cdr thread))
7724 (apply
7725 '+ 1 (mapcar
7726 'gnus-summary-number-of-articles-in-thread (cdr thread))))
7727 ((null thread)
7729 ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
7731 (t 0))))
7732 (when (and level (zerop level) gnus-tmp-new-adopts)
7733 (incf number
7734 (apply '+ (mapcar
7735 'gnus-summary-number-of-articles-in-thread
7736 gnus-tmp-new-adopts))))
7737 (if char
7738 (if (> number 1) gnus-not-empty-thread-mark
7739 gnus-empty-thread-mark)
7740 number)))
7742 (defun gnus-summary-set-local-parameters (group)
7743 "Go through the local params of GROUP and set all variable specs in that list."
7744 (let ((params (gnus-info-params (gnus-get-info group)))
7745 elem)
7746 (while params
7747 (setq elem (car params)
7748 params (cdr params))
7749 (and (consp elem) ; Has to be a cons.
7750 (consp (cdr elem)) ; The cdr has to be a list.
7751 (symbolp (car elem)) ; Has to be a symbol in there.
7752 (not (memq (car elem)
7753 '(quit-config to-address to-list to-group)))
7754 (progn ; So we set it.
7755 (make-local-variable (car elem))
7756 (set (car elem) (eval (nth 1 elem))))))))
7758 (defun gnus-summary-read-group (group &optional show-all no-article
7759 kill-buffer no-display)
7760 "Start reading news in newsgroup GROUP.
7761 If SHOW-ALL is non-nil, already read articles are also listed.
7762 If NO-ARTICLE is non-nil, no article is selected initially.
7763 If NO-DISPLAY, don't generate a summary buffer."
7764 (gnus-message 5 "Retrieving newsgroup: %s..." group)
7765 (let* ((new-group (gnus-summary-setup-buffer group))
7766 (quit-config (gnus-group-quit-config group))
7767 (did-select (and new-group (gnus-select-newsgroup group show-all))))
7768 (cond
7769 ;; This summary buffer exists already, so we just select it.
7770 ((not new-group)
7771 (gnus-set-global-variables)
7772 (when kill-buffer
7773 (gnus-kill-or-deaden-summary kill-buffer))
7774 (gnus-configure-windows 'summary 'force)
7775 (gnus-set-mode-line 'summary)
7776 (gnus-summary-position-point)
7777 (message "")
7779 ;; We couldn't select this group.
7780 ((null did-select)
7781 (when (and (eq major-mode 'gnus-summary-mode)
7782 (not (equal (current-buffer) kill-buffer)))
7783 (kill-buffer (current-buffer))
7784 (if (not quit-config)
7785 (progn
7786 (set-buffer gnus-group-buffer)
7787 (gnus-group-jump-to-group group)
7788 (gnus-group-next-unread-group 1))
7789 (if (not (buffer-name (car quit-config)))
7790 (gnus-configure-windows 'group 'force)
7791 (set-buffer (car quit-config))
7792 (and (eq major-mode 'gnus-summary-mode)
7793 (gnus-set-global-variables))
7794 (gnus-configure-windows (cdr quit-config)))))
7795 (gnus-message 3 "Can't select group")
7796 nil)
7797 ;; The user did a `C-g' while prompting for number of articles,
7798 ;; so we exit this group.
7799 ((eq did-select 'quit)
7800 (and (eq major-mode 'gnus-summary-mode)
7801 (not (equal (current-buffer) kill-buffer))
7802 (kill-buffer (current-buffer)))
7803 (when kill-buffer
7804 (gnus-kill-or-deaden-summary kill-buffer))
7805 (if (not quit-config)
7806 (progn
7807 (set-buffer gnus-group-buffer)
7808 (gnus-group-jump-to-group group)
7809 (gnus-group-next-unread-group 1)
7810 (gnus-configure-windows 'group 'force))
7811 (if (not (buffer-name (car quit-config)))
7812 (gnus-configure-windows 'group 'force)
7813 (set-buffer (car quit-config))
7814 (and (eq major-mode 'gnus-summary-mode)
7815 (gnus-set-global-variables))
7816 (gnus-configure-windows (cdr quit-config))))
7817 ;; Finally signal the quit.
7818 (signal 'quit nil))
7819 ;; The group was successfully selected.
7821 (gnus-set-global-variables)
7822 ;; Save the active value in effect when the group was entered.
7823 (setq gnus-newsgroup-active
7824 (gnus-copy-sequence
7825 (gnus-active gnus-newsgroup-name)))
7826 ;; You can change the summary buffer in some way with this hook.
7827 (run-hooks 'gnus-select-group-hook)
7828 ;; Set any local variables in the group parameters.
7829 (gnus-summary-set-local-parameters gnus-newsgroup-name)
7830 (gnus-update-format-specifications)
7831 ;; Do score processing.
7832 (when gnus-use-scoring
7833 (gnus-possibly-score-headers))
7834 ;; Check whether to fill in the gaps in the threads.
7835 (when gnus-build-sparse-threads
7836 (gnus-build-sparse-threads))
7837 ;; Find the initial limit.
7838 (if gnus-show-threads
7839 (if show-all
7840 (let ((gnus-newsgroup-dormant nil))
7841 (gnus-summary-initial-limit show-all))
7842 (gnus-summary-initial-limit show-all))
7843 (setq gnus-newsgroup-limit
7844 (mapcar
7845 (lambda (header) (mail-header-number header))
7846 gnus-newsgroup-headers)))
7847 ;; Generate the summary buffer.
7848 (unless no-display
7849 (gnus-summary-prepare))
7850 (when gnus-use-trees
7851 (gnus-tree-open group)
7852 (setq gnus-summary-highlight-line-function
7853 'gnus-tree-highlight-article))
7854 ;; If the summary buffer is empty, but there are some low-scored
7855 ;; articles or some excluded dormants, we include these in the
7856 ;; buffer.
7857 (when (and (zerop (buffer-size))
7858 (not no-display))
7859 (cond (gnus-newsgroup-dormant
7860 (gnus-summary-limit-include-dormant))
7861 ((and gnus-newsgroup-scored show-all)
7862 (gnus-summary-limit-include-expunged))))
7863 ;; Function `gnus-apply-kill-file' must be called in this hook.
7864 (run-hooks 'gnus-apply-kill-hook)
7865 (if (and (zerop (buffer-size))
7866 (not no-display))
7867 (progn
7868 ;; This newsgroup is empty.
7869 (gnus-summary-catchup-and-exit nil t) ;Without confirmations.
7870 (gnus-message 6 "No unread news")
7871 (when kill-buffer
7872 (gnus-kill-or-deaden-summary kill-buffer))
7873 ;; Return nil from this function.
7874 nil)
7875 ;; Hide conversation thread subtrees. We cannot do this in
7876 ;; gnus-summary-prepare-hook since kill processing may not
7877 ;; work with hidden articles.
7878 (and gnus-show-threads
7879 gnus-thread-hide-subtree
7880 (gnus-summary-hide-all-threads))
7881 ;; Show first unread article if requested.
7882 (if (and (not no-article)
7883 (not no-display)
7884 gnus-newsgroup-unreads
7885 gnus-auto-select-first)
7886 (unless (if (eq gnus-auto-select-first 'best)
7887 (gnus-summary-best-unread-article)
7888 (gnus-summary-first-unread-article))
7889 (gnus-configure-windows 'summary))
7890 ;; Don't select any articles, just move point to the first
7891 ;; article in the group.
7892 (goto-char (point-min))
7893 (gnus-summary-position-point)
7894 (gnus-set-mode-line 'summary)
7895 (gnus-configure-windows 'summary 'force))
7896 ;; If we are in async mode, we send some info to the backend.
7897 (when gnus-newsgroup-async
7898 (gnus-request-asynchronous gnus-newsgroup-name gnus-newsgroup-data))
7899 (when kill-buffer
7900 (gnus-kill-or-deaden-summary kill-buffer))
7901 (when (get-buffer-window gnus-group-buffer t)
7902 ;; Gotta use windows, because recenter does wierd stuff if
7903 ;; the current buffer ain't the displayed window.
7904 (let ((owin (selected-window)))
7905 (select-window (get-buffer-window gnus-group-buffer t))
7906 (when (gnus-group-goto-group group)
7907 (recenter))
7908 (select-window owin))))
7909 ;; Mark this buffer as "prepared".
7910 (setq gnus-newsgroup-prepared t)
7911 t))))
7913 (defun gnus-summary-prepare ()
7914 "Generate the summary buffer."
7915 (let ((buffer-read-only nil))
7916 (erase-buffer)
7917 (setq gnus-newsgroup-data nil
7918 gnus-newsgroup-data-reverse nil)
7919 (run-hooks 'gnus-summary-generate-hook)
7920 ;; Generate the buffer, either with threads or without.
7921 (when gnus-newsgroup-headers
7922 (gnus-summary-prepare-threads
7923 (if gnus-show-threads
7924 (gnus-sort-gathered-threads
7925 (funcall gnus-summary-thread-gathering-function
7926 (gnus-sort-threads
7927 (gnus-cut-threads (gnus-make-threads)))))
7928 ;; Unthreaded display.
7929 (gnus-sort-articles gnus-newsgroup-headers))))
7930 (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
7931 ;; Call hooks for modifying summary buffer.
7932 (goto-char (point-min))
7933 (run-hooks 'gnus-summary-prepare-hook)))
7935 (defun gnus-gather-threads-by-subject (threads)
7936 "Gather threads by looking at Subject headers."
7937 (if (not gnus-summary-make-false-root)
7938 threads
7939 (let ((hashtb (gnus-make-hashtable 1023))
7940 (prev threads)
7941 (result threads)
7942 subject hthread whole-subject)
7943 (while threads
7944 (setq whole-subject (mail-header-subject (caar threads)))
7945 (setq subject
7946 (cond
7947 ;; Truncate the subject.
7948 ((numberp gnus-summary-gather-subject-limit)
7949 (setq subject (gnus-simplify-subject-re whole-subject))
7950 (if (> (length subject) gnus-summary-gather-subject-limit)
7951 (substring subject 0 gnus-summary-gather-subject-limit)
7952 subject))
7953 ;; Fuzzily simplify it.
7954 ((eq 'fuzzy gnus-summary-gather-subject-limit)
7955 (gnus-simplify-subject-fuzzy whole-subject))
7956 ;; Just remove the leading "Re:".
7958 (gnus-simplify-subject-re whole-subject))))
7960 (if (and gnus-summary-gather-exclude-subject
7961 (string-match gnus-summary-gather-exclude-subject
7962 subject))
7963 () ; We don't want to do anything with this article.
7964 ;; We simplify the subject before looking it up in the
7965 ;; hash table.
7967 (if (setq hthread (gnus-gethash subject hashtb))
7968 (progn
7969 ;; We enter a dummy root into the thread, if we
7970 ;; haven't done that already.
7971 (unless (stringp (caar hthread))
7972 (setcar hthread (list whole-subject (car hthread))))
7973 ;; We add this new gathered thread to this gathered
7974 ;; thread.
7975 (setcdr (car hthread)
7976 (nconc (cdar hthread) (list (car threads))))
7977 ;; Remove it from the list of threads.
7978 (setcdr prev (cdr threads))
7979 (setq threads prev))
7980 ;; Enter this thread into the hash table.
7981 (gnus-sethash subject threads hashtb)))
7982 (setq prev threads)
7983 (setq threads (cdr threads)))
7984 result)))
7986 (defun gnus-gather-threads-by-references (threads)
7987 "Gather threads by looking at References headers."
7988 (let ((idhashtb (gnus-make-hashtable 1023))
7989 (thhashtb (gnus-make-hashtable 1023))
7990 (prev threads)
7991 (result threads)
7992 ids references id gthread gid entered)
7993 (while threads
7994 (when (setq references (mail-header-references (caar threads)))
7995 (setq id (mail-header-id (caar threads)))
7996 (setq ids (gnus-split-references references))
7997 (setq entered nil)
7998 (while ids
7999 (if (not (setq gid (gnus-gethash (car ids) idhashtb)))
8000 (progn
8001 (gnus-sethash (car ids) id idhashtb)
8002 (gnus-sethash id threads thhashtb))
8003 (setq gthread (gnus-gethash gid thhashtb))
8004 (unless entered
8005 ;; We enter a dummy root into the thread, if we
8006 ;; haven't done that already.
8007 (unless (stringp (caar gthread))
8008 (setcar gthread (list (mail-header-subject (caar gthread))
8009 (car gthread))))
8010 ;; We add this new gathered thread to this gathered
8011 ;; thread.
8012 (setcdr (car gthread)
8013 (nconc (cdar gthread) (list (car threads)))))
8014 ;; Add it into the thread hash table.
8015 (gnus-sethash id gthread thhashtb)
8016 (setq entered t)
8017 ;; Remove it from the list of threads.
8018 (setcdr prev (cdr threads))
8019 (setq threads prev))
8020 (setq ids (cdr ids))))
8021 (setq prev threads)
8022 (setq threads (cdr threads)))
8023 result))
8025 (defun gnus-sort-gathered-threads (threads)
8026 "Sort subtreads inside each gathered thread by article number."
8027 (let ((result threads))
8028 (while threads
8029 (when (stringp (caar threads))
8030 (setcdr (car threads)
8031 (sort (cdar threads) 'gnus-thread-sort-by-number)))
8032 (setq threads (cdr threads)))
8033 result))
8035 (defun gnus-make-threads ()
8036 "Go through the dependency hashtb and find the roots. Return all threads."
8037 (let (threads)
8038 (mapatoms
8039 (lambda (refs)
8040 (unless (car (symbol-value refs))
8041 ;; These threads do not refer back to any other articles,
8042 ;; so they're roots.
8043 (setq threads (append (cdr (symbol-value refs)) threads))))
8044 gnus-newsgroup-dependencies)
8045 threads))
8047 (defun gnus-build-sparse-threads ()
8048 (let ((headers gnus-newsgroup-headers)
8049 (deps gnus-newsgroup-dependencies)
8050 header references generation relations
8051 cthread subject child end pthread relation)
8052 ;; First we create an alist of generations/relations, where
8053 ;; generations is how much we trust the ralation, and the relation
8054 ;; is parent/child.
8055 (gnus-message 7 "Making sparse threads...")
8056 (save-excursion
8057 (nnheader-set-temp-buffer " *gnus sparse threads*")
8058 (while (setq header (pop headers))
8059 (when (and (setq references (mail-header-references header))
8060 (not (string= references "")))
8061 (insert references)
8062 (setq child (mail-header-id header)
8063 subject (mail-header-subject header))
8064 (setq generation 0)
8065 (while (search-backward ">" nil t)
8066 (setq end (1+ (point)))
8067 (when (search-backward "<" nil t)
8068 (push (list (incf generation)
8069 child (setq child (buffer-substring (point) end))
8070 subject)
8071 relations)))
8072 (push (list (1+ generation) child nil subject) relations)
8073 (erase-buffer)))
8074 (kill-buffer (current-buffer)))
8075 ;; Sort over trustworthiness.
8076 (setq relations (sort relations (lambda (r1 r2) (< (car r1) (car r2)))))
8077 (while (setq relation (pop relations))
8078 (when (if (boundp (setq cthread (intern (cadr relation) deps)))
8079 (unless (car (symbol-value cthread))
8080 ;; Make this article the parent of these threads.
8081 (setcar (symbol-value cthread)
8082 (vector gnus-reffed-article-number
8083 (cadddr relation)
8084 "" ""
8085 (cadr relation)
8086 (or (caddr relation) "") 0 0 "")))
8087 (set cthread (list (vector gnus-reffed-article-number
8088 (cadddr relation)
8089 "" "" (cadr relation)
8090 (or (caddr relation) "") 0 0 ""))))
8091 (push gnus-reffed-article-number gnus-newsgroup-limit)
8092 (push gnus-reffed-article-number gnus-newsgroup-sparse)
8093 (push (cons gnus-reffed-article-number gnus-sparse-mark)
8094 gnus-newsgroup-reads)
8095 (decf gnus-reffed-article-number)
8096 ;; Make this new thread the child of its parent.
8097 (if (boundp (setq pthread (intern (or (caddr relation) "none") deps)))
8098 (setcdr (symbol-value pthread)
8099 (nconc (cdr (symbol-value pthread))
8100 (list (symbol-value cthread))))
8101 (set pthread (list nil (symbol-value cthread))))))
8102 (gnus-message 7 "Making sparse threads...done")))
8104 (defun gnus-build-old-threads ()
8105 ;; Look at all the articles that refer back to old articles, and
8106 ;; fetch the headers for the articles that aren't there. This will
8107 ;; build complete threads - if the roots haven't been expired by the
8108 ;; server, that is.
8109 (let (id heads)
8110 (mapatoms
8111 (lambda (refs)
8112 (when (not (car (symbol-value refs)))
8113 (setq heads (cdr (symbol-value refs)))
8114 (while heads
8115 (if (memq (mail-header-number (caar heads))
8116 gnus-newsgroup-dormant)
8117 (setq heads (cdr heads))
8118 (setq id (symbol-name refs))
8119 (while (and (setq id (gnus-build-get-header id))
8120 (not (car (gnus-gethash
8121 id gnus-newsgroup-dependencies)))))
8122 (setq heads nil)))))
8123 gnus-newsgroup-dependencies)))
8125 (defun gnus-build-get-header (id)
8126 ;; Look through the buffer of NOV lines and find the header to
8127 ;; ID. Enter this line into the dependencies hash table, and return
8128 ;; the id of the parent article (if any).
8129 (let ((deps gnus-newsgroup-dependencies)
8130 found header)
8131 (prog1
8132 (save-excursion
8133 (set-buffer nntp-server-buffer)
8134 (goto-char (point-min))
8135 (while (and (not found) (search-forward id nil t))
8136 (beginning-of-line)
8137 (setq found (looking-at
8138 (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
8139 (regexp-quote id))))
8140 (or found (beginning-of-line 2)))
8141 (when found
8142 (beginning-of-line)
8143 (and
8144 (setq header (gnus-nov-parse-line
8145 (read (current-buffer)) deps))
8146 (gnus-parent-id (mail-header-references header)))))
8147 (when header
8148 (let ((number (mail-header-number header)))
8149 (push number gnus-newsgroup-limit)
8150 (push header gnus-newsgroup-headers)
8151 (if (memq number gnus-newsgroup-unselected)
8152 (progn
8153 (push number gnus-newsgroup-unreads)
8154 (setq gnus-newsgroup-unselected
8155 (delq number gnus-newsgroup-unselected)))
8156 (push number gnus-newsgroup-ancient)))))))
8158 (defun gnus-summary-update-article (article &optional iheader)
8159 "Update ARTICLE in the summary buffer."
8160 (set-buffer gnus-summary-buffer)
8161 (let* ((header (or iheader (gnus-summary-article-header article)))
8162 (id (mail-header-id header))
8163 (data (gnus-data-find article))
8164 (thread (gnus-id-to-thread id))
8165 (references (mail-header-references header))
8166 (parent
8167 (gnus-id-to-thread
8168 (or (gnus-parent-id
8169 (if (and references
8170 (not (equal "" references)))
8171 references))
8172 "none")))
8173 (buffer-read-only nil)
8174 (old (car thread))
8175 (number (mail-header-number header))
8176 pos)
8177 (when thread
8178 ;; !!! Should this be in or not?
8179 (unless iheader
8180 (setcar thread nil))
8181 (when parent
8182 (delq thread parent))
8183 (if (gnus-summary-insert-subject id header iheader)
8184 ;; Set the (possibly) new article number in the data structure.
8185 (gnus-data-set-number data (gnus-id-to-article id))
8186 (setcar thread old)
8187 nil))))
8189 (defun gnus-rebuild-thread (id)
8190 "Rebuild the thread containing ID."
8191 (let ((buffer-read-only nil)
8192 current thread data)
8193 (if (not gnus-show-threads)
8194 (setq thread (list (car (gnus-id-to-thread id))))
8195 ;; Get the thread this article is part of.
8196 (setq thread (gnus-remove-thread id)))
8197 (setq current (save-excursion
8198 (and (zerop (forward-line -1))
8199 (gnus-summary-article-number))))
8200 ;; If this is a gathered thread, we have to go some re-gathering.
8201 (when (stringp (car thread))
8202 (let ((subject (car thread))
8203 roots thr)
8204 (setq thread (cdr thread))
8205 (while thread
8206 (unless (memq (setq thr (gnus-id-to-thread
8207 (gnus-root-id
8208 (mail-header-id (caar thread)))))
8209 roots)
8210 (push thr roots))
8211 (setq thread (cdr thread)))
8212 ;; We now have all (unique) roots.
8213 (if (= (length roots) 1)
8214 ;; All the loose roots are now one solid root.
8215 (setq thread (car roots))
8216 (setq thread (cons subject (gnus-sort-threads roots))))))
8217 (let (threads)
8218 ;; We then insert this thread into the summary buffer.
8219 (let (gnus-newsgroup-data gnus-newsgroup-threads)
8220 (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
8221 (setq data (nreverse gnus-newsgroup-data))
8222 (setq threads gnus-newsgroup-threads))
8223 ;; We splice the new data into the data structure.
8224 (gnus-data-enter-list current data)
8225 (gnus-data-compute-positions)
8226 (setq gnus-newsgroup-threads (nconc threads gnus-newsgroup-threads)))))
8228 (defun gnus-number-to-header (number)
8229 "Return the header for article NUMBER."
8230 (let ((headers gnus-newsgroup-headers))
8231 (while (and headers
8232 (not (= number (mail-header-number (car headers)))))
8233 (pop headers))
8234 (when headers
8235 (car headers))))
8237 (defun gnus-id-to-thread (id)
8238 "Return the (sub-)thread where ID appears."
8239 (gnus-gethash id gnus-newsgroup-dependencies))
8241 (defun gnus-id-to-article (id)
8242 "Return the article number of ID."
8243 (let ((thread (gnus-id-to-thread id)))
8244 (when (and thread
8245 (car thread))
8246 (mail-header-number (car thread)))))
8248 (defun gnus-id-to-header (id)
8249 "Return the article headers of ID."
8250 (car (gnus-id-to-thread id)))
8252 (defun gnus-article-displayed-root-p (article)
8253 "Say whether ARTICLE is a root(ish) article."
8254 (let ((level (gnus-summary-thread-level article))
8255 (refs (mail-header-references (gnus-summary-article-header article)))
8256 particle)
8257 (cond
8258 ((null level) nil)
8259 ((zerop level) t)
8260 ((null refs) t)
8261 ((null (gnus-parent-id refs)) t)
8262 ((and (= 1 level)
8263 (null (setq particle (gnus-id-to-article
8264 (gnus-parent-id refs))))
8265 (null (gnus-summary-thread-level particle)))))))
8267 (defun gnus-root-id (id)
8268 "Return the id of the root of the thread where ID appears."
8269 (let (last-id prev)
8270 (while (and id (setq prev (car (gnus-gethash
8271 id gnus-newsgroup-dependencies))))
8272 (setq last-id id
8273 id (gnus-parent-id (mail-header-references prev))))
8274 last-id))
8276 (defun gnus-remove-thread (id &optional dont-remove)
8277 "Remove the thread that has ID in it."
8278 (let ((dep gnus-newsgroup-dependencies)
8279 headers thread last-id)
8280 ;; First go up in this thread until we find the root.
8281 (setq last-id (gnus-root-id id))
8282 (setq headers (list (car (gnus-id-to-thread last-id))
8283 (caadr (gnus-id-to-thread last-id))))
8284 ;; We have now found the real root of this thread. It might have
8285 ;; been gathered into some loose thread, so we have to search
8286 ;; through the threads to find the thread we wanted.
8287 (let ((threads gnus-newsgroup-threads)
8288 sub)
8289 (while threads
8290 (setq sub (car threads))
8291 (if (stringp (car sub))
8292 ;; This is a gathered threads, so we look at the roots
8293 ;; below it to find whether this article in in this
8294 ;; gathered root.
8295 (progn
8296 (setq sub (cdr sub))
8297 (while sub
8298 (when (member (caar sub) headers)
8299 (setq thread (car threads)
8300 threads nil
8301 sub nil))
8302 (setq sub (cdr sub))))
8303 ;; It's an ordinary thread, so we check it.
8304 (when (eq (car sub) (car headers))
8305 (setq thread sub
8306 threads nil)))
8307 (setq threads (cdr threads)))
8308 ;; If this article is in no thread, then it's a root.
8309 (if thread
8310 (unless dont-remove
8311 (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
8312 (setq thread (gnus-gethash last-id dep)))
8313 (when thread
8314 (prog1
8315 thread ; We return this thread.
8316 (unless dont-remove
8317 (if (stringp (car thread))
8318 (progn
8319 ;; If we use dummy roots, then we have to remove the
8320 ;; dummy root as well.
8321 (when (eq gnus-summary-make-false-root 'dummy)
8322 ;; Uhm.
8324 (setq thread (cdr thread))
8325 (while thread
8326 (gnus-remove-thread-1 (car thread))
8327 (setq thread (cdr thread))))
8328 (gnus-remove-thread-1 thread))))))))
8330 (defun gnus-remove-thread-1 (thread)
8331 "Remove the thread THREAD recursively."
8332 (let ((number (mail-header-number (car thread)))
8333 pos)
8334 (when (setq pos (text-property-any
8335 (point-min) (point-max) 'gnus-number number))
8336 (goto-char pos)
8337 (gnus-delete-line)
8338 (gnus-data-remove number))
8339 (setq thread (cdr thread))
8340 (while thread
8341 (gnus-remove-thread-1 (pop thread)))))
8343 (defun gnus-sort-threads (threads)
8344 "Sort THREADS."
8345 (if (not gnus-thread-sort-functions)
8346 threads
8347 (let ((func (if (= 1 (length gnus-thread-sort-functions))
8348 (car gnus-thread-sort-functions)
8349 `(lambda (t1 t2)
8350 ,(gnus-make-sort-function
8351 (reverse gnus-thread-sort-functions))))))
8352 (gnus-message 7 "Sorting threads...")
8353 (prog1
8354 (sort threads func)
8355 (gnus-message 7 "Sorting threads...done")))))
8357 (defun gnus-sort-articles (articles)
8358 "Sort ARTICLES."
8359 (when gnus-article-sort-functions
8360 (let ((func (if (= 1 (length gnus-article-sort-functions))
8361 (car gnus-article-sort-functions)
8362 `(lambda (t1 t2)
8363 ,(gnus-make-sort-function
8364 (reverse gnus-article-sort-functions))))))
8365 (gnus-message 7 "Sorting articles...")
8366 (prog1
8367 (setq gnus-newsgroup-headers (sort articles func))
8368 (gnus-message 7 "Sorting articles...done")))))
8370 (defun gnus-make-sort-function (funs)
8371 "Return a composite sort condition based on the functions in FUNC."
8372 (if (cdr funs)
8373 `(or (,(car funs) t1 t2)
8374 (and (not (,(car funs) t2 t1))
8375 ,(gnus-make-sort-function (cdr funs))))
8376 `(,(car funs) t1 t2)))
8378 ;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
8379 (defmacro gnus-thread-header (thread)
8380 ;; Return header of first article in THREAD.
8381 ;; Note that THREAD must never, ever be anything else than a variable -
8382 ;; using some other form will lead to serious barfage.
8383 (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
8384 ;; (8% speedup to gnus-summary-prepare, just for fun :-)
8385 (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207" ;
8386 (vector thread) 2))
8388 (defsubst gnus-article-sort-by-number (h1 h2)
8389 "Sort articles by article number."
8390 (< (mail-header-number h1)
8391 (mail-header-number h2)))
8393 (defun gnus-thread-sort-by-number (h1 h2)
8394 "Sort threads by root article number."
8395 (gnus-article-sort-by-number
8396 (gnus-thread-header h1) (gnus-thread-header h2)))
8398 (defsubst gnus-article-sort-by-author (h1 h2)
8399 "Sort articles by root author."
8400 (string-lessp
8401 (let ((extract (funcall
8402 gnus-extract-address-components
8403 (mail-header-from h1))))
8404 (or (car extract) (cdr extract)))
8405 (let ((extract (funcall
8406 gnus-extract-address-components
8407 (mail-header-from h2))))
8408 (or (car extract) (cdr extract)))))
8410 (defun gnus-thread-sort-by-author (h1 h2)
8411 "Sort threads by root author."
8412 (gnus-article-sort-by-author
8413 (gnus-thread-header h1) (gnus-thread-header h2)))
8415 (defsubst gnus-article-sort-by-subject (h1 h2)
8416 "Sort articles by root subject."
8417 (string-lessp
8418 (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
8419 (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
8421 (defun gnus-thread-sort-by-subject (h1 h2)
8422 "Sort threads by root subject."
8423 (gnus-article-sort-by-subject
8424 (gnus-thread-header h1) (gnus-thread-header h2)))
8426 (defsubst gnus-article-sort-by-date (h1 h2)
8427 "Sort articles by root article date."
8428 (string-lessp
8429 (inline (gnus-sortable-date (mail-header-date h1)))
8430 (inline (gnus-sortable-date (mail-header-date h2)))))
8432 (defun gnus-thread-sort-by-date (h1 h2)
8433 "Sort threads by root article date."
8434 (gnus-article-sort-by-date
8435 (gnus-thread-header h1) (gnus-thread-header h2)))
8437 (defsubst gnus-article-sort-by-score (h1 h2)
8438 "Sort articles by root article score.
8439 Unscored articles will be counted as having a score of zero."
8440 (> (or (cdr (assq (mail-header-number h1)
8441 gnus-newsgroup-scored))
8442 gnus-summary-default-score 0)
8443 (or (cdr (assq (mail-header-number h2)
8444 gnus-newsgroup-scored))
8445 gnus-summary-default-score 0)))
8447 (defun gnus-thread-sort-by-score (h1 h2)
8448 "Sort threads by root article score."
8449 (gnus-article-sort-by-score
8450 (gnus-thread-header h1) (gnus-thread-header h2)))
8452 (defun gnus-thread-sort-by-total-score (h1 h2)
8453 "Sort threads by the sum of all scores in the thread.
8454 Unscored articles will be counted as having a score of zero."
8455 (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
8457 (defun gnus-thread-total-score (thread)
8458 ;; This function find the total score of THREAD.
8459 (cond ((null thread)
8461 ((consp thread)
8462 (if (stringp (car thread))
8463 (apply gnus-thread-score-function 0
8464 (mapcar 'gnus-thread-total-score-1 (cdr thread)))
8465 (gnus-thread-total-score-1 thread)))
8467 (gnus-thread-total-score-1 (list thread)))))
8469 (defun gnus-thread-total-score-1 (root)
8470 ;; This function find the total score of the thread below ROOT.
8471 (setq root (car root))
8472 (apply gnus-thread-score-function
8473 (or (append
8474 (mapcar 'gnus-thread-total-score
8475 (cdr (gnus-gethash (mail-header-id root)
8476 gnus-newsgroup-dependencies)))
8477 (if (> (mail-header-number root) 0)
8478 (list (or (cdr (assq (mail-header-number root)
8479 gnus-newsgroup-scored))
8480 gnus-summary-default-score 0))))
8481 (list gnus-summary-default-score)
8482 '(0))))
8484 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
8485 (defvar gnus-tmp-prev-subject nil)
8486 (defvar gnus-tmp-false-parent nil)
8487 (defvar gnus-tmp-root-expunged nil)
8488 (defvar gnus-tmp-dummy-line nil)
8490 (defun gnus-summary-prepare-threads (threads)
8491 "Prepare summary buffer from THREADS and indentation LEVEL.
8492 THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
8493 or a straight list of headers."
8494 (gnus-message 7 "Generating summary...")
8496 (setq gnus-newsgroup-threads threads)
8497 (beginning-of-line)
8499 (let ((gnus-tmp-level 0)
8500 (default-score (or gnus-summary-default-score 0))
8501 (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
8502 thread number subject stack state gnus-tmp-gathered beg-match
8503 new-roots gnus-tmp-new-adopts thread-end
8504 gnus-tmp-header gnus-tmp-unread
8505 gnus-tmp-replied gnus-tmp-subject-or-nil
8506 gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
8507 gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
8508 gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket)
8510 (setq gnus-tmp-prev-subject nil)
8512 (if (vectorp (car threads))
8513 ;; If this is a straight (sic) list of headers, then a
8514 ;; threaded summary display isn't required, so we just create
8515 ;; an unthreaded one.
8516 (gnus-summary-prepare-unthreaded threads)
8518 ;; Do the threaded display.
8520 (while (or threads stack gnus-tmp-new-adopts new-roots)
8522 (if (and (= gnus-tmp-level 0)
8523 (not (setq gnus-tmp-dummy-line nil))
8524 (or (not stack)
8525 (= (caar stack) 0))
8526 (not gnus-tmp-false-parent)
8527 (or gnus-tmp-new-adopts new-roots))
8528 (if gnus-tmp-new-adopts
8529 (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
8530 thread (list (car gnus-tmp-new-adopts))
8531 gnus-tmp-header (caar thread)
8532 gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
8533 (if new-roots
8534 (setq thread (list (car new-roots))
8535 gnus-tmp-header (caar thread)
8536 new-roots (cdr new-roots))))
8538 (if threads
8539 ;; If there are some threads, we do them before the
8540 ;; threads on the stack.
8541 (setq thread threads
8542 gnus-tmp-header (caar thread))
8543 ;; There were no current threads, so we pop something off
8544 ;; the stack.
8545 (setq state (car stack)
8546 gnus-tmp-level (car state)
8547 thread (cdr state)
8548 stack (cdr stack)
8549 gnus-tmp-header (caar thread))))
8551 (setq gnus-tmp-false-parent nil)
8552 (setq gnus-tmp-root-expunged nil)
8553 (setq thread-end nil)
8555 (if (stringp gnus-tmp-header)
8556 ;; The header is a dummy root.
8557 (cond
8558 ((eq gnus-summary-make-false-root 'adopt)
8559 ;; We let the first article adopt the rest.
8560 (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
8561 (cddar thread)))
8562 (setq gnus-tmp-gathered
8563 (nconc (mapcar
8564 (lambda (h) (mail-header-number (car h)))
8565 (cddar thread))
8566 gnus-tmp-gathered))
8567 (setq thread (cons (list (caar thread)
8568 (cadar thread))
8569 (cdr thread)))
8570 (setq gnus-tmp-level -1
8571 gnus-tmp-false-parent t))
8572 ((eq gnus-summary-make-false-root 'empty)
8573 ;; We print adopted articles with empty subject fields.
8574 (setq gnus-tmp-gathered
8575 (nconc (mapcar
8576 (lambda (h) (mail-header-number (car h)))
8577 (cddar thread))
8578 gnus-tmp-gathered))
8579 (setq gnus-tmp-level -1))
8580 ((eq gnus-summary-make-false-root 'dummy)
8581 ;; We remember that we probably want to output a dummy
8582 ;; root.
8583 (setq gnus-tmp-dummy-line gnus-tmp-header)
8584 (setq gnus-tmp-prev-subject gnus-tmp-header))
8586 ;; We do not make a root for the gathered
8587 ;; sub-threads at all.
8588 (setq gnus-tmp-level -1)))
8590 (setq number (mail-header-number gnus-tmp-header)
8591 subject (mail-header-subject gnus-tmp-header))
8593 (cond
8594 ;; If the thread has changed subject, we might want to make
8595 ;; this subthread into a root.
8596 ((and (null gnus-thread-ignore-subject)
8597 (not (zerop gnus-tmp-level))
8598 gnus-tmp-prev-subject
8599 (not (inline
8600 (gnus-subject-equal gnus-tmp-prev-subject subject))))
8601 (setq new-roots (nconc new-roots (list (car thread)))
8602 thread-end t
8603 gnus-tmp-header nil))
8604 ;; If the article lies outside the current limit,
8605 ;; then we do not display it.
8606 ((and (not (memq number gnus-newsgroup-limit))
8607 (not gnus-tmp-dummy-line))
8608 (setq gnus-tmp-gathered
8609 (nconc (mapcar
8610 (lambda (h) (mail-header-number (car h)))
8611 (cdar thread))
8612 gnus-tmp-gathered))
8613 (setq gnus-tmp-new-adopts (if (cdar thread)
8614 (append gnus-tmp-new-adopts
8615 (cdar thread))
8616 gnus-tmp-new-adopts)
8617 thread-end t
8618 gnus-tmp-header nil)
8619 (when (zerop gnus-tmp-level)
8620 (setq gnus-tmp-root-expunged t)))
8621 ;; Perhaps this article is to be marked as read?
8622 ((and gnus-summary-mark-below
8623 (< (or (cdr (assq number gnus-newsgroup-scored))
8624 default-score)
8625 gnus-summary-mark-below)
8626 ;; Don't touch sparse articles.
8627 (not (memq number gnus-newsgroup-sparse))
8628 (not (memq number gnus-newsgroup-ancient)))
8629 (setq gnus-newsgroup-unreads
8630 (delq number gnus-newsgroup-unreads))
8631 (if gnus-newsgroup-auto-expire
8632 (push number gnus-newsgroup-expirable)
8633 (push (cons number gnus-low-score-mark)
8634 gnus-newsgroup-reads))))
8636 (when gnus-tmp-header
8637 ;; We may have an old dummy line to output before this
8638 ;; article.
8639 (when gnus-tmp-dummy-line
8640 (gnus-summary-insert-dummy-line
8641 gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
8642 (setq gnus-tmp-dummy-line nil))
8644 ;; Compute the mark.
8645 (setq
8646 gnus-tmp-unread
8647 (cond
8648 ((memq number gnus-newsgroup-unreads) gnus-unread-mark)
8649 ((memq number gnus-newsgroup-marked) gnus-ticked-mark)
8650 ((memq number gnus-newsgroup-dormant) gnus-dormant-mark)
8651 ((memq number gnus-newsgroup-expirable) gnus-expirable-mark)
8652 (t (or (cdr (assq number gnus-newsgroup-reads))
8653 gnus-ancient-mark))))
8655 (push (gnus-data-make number gnus-tmp-unread (1+ (point))
8656 gnus-tmp-header gnus-tmp-level)
8657 gnus-newsgroup-data)
8659 ;; Actually insert the line.
8660 (setq
8661 gnus-tmp-subject-or-nil
8662 (cond
8663 ((and gnus-thread-ignore-subject
8664 gnus-tmp-prev-subject
8665 (not (inline (gnus-subject-equal
8666 gnus-tmp-prev-subject subject))))
8667 subject)
8668 ((zerop gnus-tmp-level)
8669 (if (and (eq gnus-summary-make-false-root 'empty)
8670 (memq number gnus-tmp-gathered)
8671 gnus-tmp-prev-subject
8672 (inline (gnus-subject-equal
8673 gnus-tmp-prev-subject subject)))
8674 gnus-summary-same-subject
8675 subject))
8676 (t gnus-summary-same-subject)))
8677 (if (and (eq gnus-summary-make-false-root 'adopt)
8678 (= gnus-tmp-level 1)
8679 (memq number gnus-tmp-gathered))
8680 (setq gnus-tmp-opening-bracket ?\<
8681 gnus-tmp-closing-bracket ?\>)
8682 (setq gnus-tmp-opening-bracket ?\[
8683 gnus-tmp-closing-bracket ?\]))
8684 (setq
8685 gnus-tmp-indentation
8686 (aref gnus-thread-indent-array gnus-tmp-level)
8687 gnus-tmp-lines (mail-header-lines gnus-tmp-header)
8688 gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
8689 gnus-summary-default-score 0)
8690 gnus-tmp-score-char
8691 (if (or (null gnus-summary-default-score)
8692 (<= (abs (- gnus-tmp-score gnus-summary-default-score))
8693 gnus-summary-zcore-fuzz)) ?
8694 (if (< gnus-tmp-score gnus-summary-default-score)
8695 gnus-score-below-mark gnus-score-over-mark))
8696 gnus-tmp-replied
8697 (cond ((memq number gnus-newsgroup-processable)
8698 gnus-process-mark)
8699 ((memq number gnus-newsgroup-cached)
8700 gnus-cached-mark)
8701 ((memq number gnus-newsgroup-replied)
8702 gnus-replied-mark)
8703 ((memq number gnus-newsgroup-saved)
8704 gnus-saved-mark)
8705 (t gnus-unread-mark))
8706 gnus-tmp-from (mail-header-from gnus-tmp-header)
8707 gnus-tmp-name
8708 (cond
8709 ((string-match "(.+)" gnus-tmp-from)
8710 (substring gnus-tmp-from
8711 (1+ (match-beginning 0)) (1- (match-end 0))))
8712 ((string-match "<[^>]+> *$" gnus-tmp-from)
8713 (setq beg-match (match-beginning 0))
8714 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
8715 (substring gnus-tmp-from (1+ (match-beginning 0))
8716 (1- (match-end 0))))
8717 (substring gnus-tmp-from 0 beg-match)))
8718 (t gnus-tmp-from)))
8719 (when (string= gnus-tmp-name "")
8720 (setq gnus-tmp-name gnus-tmp-from))
8721 (or (numberp gnus-tmp-lines) (setq gnus-tmp-lines 0))
8722 (gnus-put-text-property
8723 (point)
8724 (progn (eval gnus-summary-line-format-spec) (point))
8725 'gnus-number number)
8726 (when gnus-visual-p
8727 (forward-line -1)
8728 (run-hooks 'gnus-summary-update-hook)
8729 (forward-line 1))
8731 (setq gnus-tmp-prev-subject subject)))
8733 (when (nth 1 thread)
8734 (push (cons (max 0 gnus-tmp-level) (nthcdr 1 thread)) stack))
8735 (incf gnus-tmp-level)
8736 (setq threads (if thread-end nil (cdar thread)))
8737 (unless threads
8738 (setq gnus-tmp-level 0)))))
8739 (gnus-message 7 "Generating summary...done"))
8741 (defun gnus-summary-prepare-unthreaded (headers)
8742 "Generate an unthreaded summary buffer based on HEADERS."
8743 (let (header number mark)
8745 (while headers
8746 ;; We may have to root out some bad articles...
8747 (when (memq (setq number (mail-header-number
8748 (setq header (pop headers))))
8749 gnus-newsgroup-limit)
8750 ;; Mark article as read when it has a low score.
8751 (when (and gnus-summary-mark-below
8752 (< (or (cdr (assq number gnus-newsgroup-scored))
8753 gnus-summary-default-score 0)
8754 gnus-summary-mark-below)
8755 (not (memq number gnus-newsgroup-ancient)))
8756 (setq gnus-newsgroup-unreads
8757 (delq number gnus-newsgroup-unreads))
8758 (if gnus-newsgroup-auto-expire
8759 (push number gnus-newsgroup-expirable)
8760 (push (cons number gnus-low-score-mark)
8761 gnus-newsgroup-reads)))
8763 (setq mark
8764 (cond
8765 ((memq number gnus-newsgroup-marked) gnus-ticked-mark)
8766 ((memq number gnus-newsgroup-dormant) gnus-dormant-mark)
8767 ((memq number gnus-newsgroup-unreads) gnus-unread-mark)
8768 ((memq number gnus-newsgroup-expirable) gnus-expirable-mark)
8769 (t (or (cdr (assq number gnus-newsgroup-reads))
8770 gnus-ancient-mark))))
8771 (setq gnus-newsgroup-data
8772 (cons (gnus-data-make number mark (1+ (point)) header 0)
8773 gnus-newsgroup-data))
8774 (gnus-summary-insert-line
8775 header 0 nil mark (memq number gnus-newsgroup-replied)
8776 (memq number gnus-newsgroup-expirable)
8777 (mail-header-subject header) nil
8778 (cdr (assq number gnus-newsgroup-scored))
8779 (memq number gnus-newsgroup-processable))))))
8781 (defun gnus-select-newsgroup (group &optional read-all)
8782 "Select newsgroup GROUP.
8783 If READ-ALL is non-nil, all articles in the group are selected."
8784 (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
8785 (info (nth 2 entry))
8786 articles fetched-articles cached)
8788 (or (gnus-check-server
8789 (setq gnus-current-select-method (gnus-find-method-for-group group)))
8790 (error "Couldn't open server"))
8792 (or (and entry (not (eq (car entry) t))) ; Either it's active...
8793 (gnus-activate-group group) ; Or we can activate it...
8794 (progn ; Or we bug out.
8795 (when (equal major-mode 'gnus-summary-mode)
8796 (kill-buffer (current-buffer)))
8797 (error "Couldn't request group %s: %s"
8798 group (gnus-status-message group))))
8800 (unless (gnus-request-group group t)
8801 (when (equal major-mode 'gnus-summary-mode)
8802 (kill-buffer (current-buffer)))
8803 (error "Couldn't request group %s: %s"
8804 group (gnus-status-message group)))
8806 (setq gnus-newsgroup-name group)
8807 (setq gnus-newsgroup-unselected nil)
8808 (setq gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
8810 (and gnus-asynchronous
8811 (gnus-check-backend-function
8812 'request-asynchronous gnus-newsgroup-name)
8813 (setq gnus-newsgroup-async
8814 (gnus-request-asynchronous gnus-newsgroup-name)))
8816 ;; Adjust and set lists of article marks.
8817 (when info
8818 (gnus-adjust-marked-articles info))
8820 ;; Kludge to avoid having cached articles nixed out in virtual groups.
8821 (when (gnus-virtual-group-p group)
8822 (setq cached gnus-newsgroup-cached))
8824 (setq gnus-newsgroup-unreads
8825 (gnus-set-difference
8826 (gnus-set-difference gnus-newsgroup-unreads gnus-newsgroup-marked)
8827 gnus-newsgroup-dormant))
8829 (setq gnus-newsgroup-processable nil)
8831 (setq articles (gnus-articles-to-read group read-all))
8833 (cond
8834 ((null articles)
8835 ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
8836 'quit)
8837 ((eq articles 0) nil)
8839 ;; Init the dependencies hash table.
8840 (setq gnus-newsgroup-dependencies
8841 (gnus-make-hashtable (length articles)))
8842 ;; Retrieve the headers and read them in.
8843 (gnus-message 5 "Fetching headers for %s..." gnus-newsgroup-name)
8844 (setq gnus-newsgroup-headers
8845 (if (eq 'nov
8846 (setq gnus-headers-retrieved-by
8847 (gnus-retrieve-headers
8848 articles gnus-newsgroup-name
8849 ;; We might want to fetch old headers, but
8850 ;; not if there is only 1 article.
8851 (and gnus-fetch-old-headers
8852 (or (and
8853 (not (eq gnus-fetch-old-headers 'some))
8854 (not (numberp gnus-fetch-old-headers)))
8855 (> (length articles) 1))))))
8856 (gnus-get-newsgroup-headers-xover articles)
8857 (gnus-get-newsgroup-headers)))
8858 (gnus-message 5 "Fetching headers for %s...done" gnus-newsgroup-name)
8860 ;; Kludge to avoid having cached articles nixed out in virtual groups.
8861 (when cached
8862 (setq gnus-newsgroup-cached cached))
8864 ;; Set the initial limit.
8865 (setq gnus-newsgroup-limit (copy-sequence articles))
8866 ;; Remove canceled articles from the list of unread articles.
8867 (setq gnus-newsgroup-unreads
8868 (gnus-set-sorted-intersection
8869 gnus-newsgroup-unreads
8870 (setq fetched-articles
8871 (mapcar (lambda (headers) (mail-header-number headers))
8872 gnus-newsgroup-headers))))
8873 ;; Removed marked articles that do not exist.
8874 (gnus-update-missing-marks
8875 (gnus-sorted-complement fetched-articles articles))
8876 ;; We might want to build some more threads first.
8877 (and gnus-fetch-old-headers
8878 (eq gnus-headers-retrieved-by 'nov)
8879 (gnus-build-old-threads))
8880 ;; Check whether auto-expire is to be done in this group.
8881 (setq gnus-newsgroup-auto-expire
8882 (gnus-group-auto-expirable-p group))
8883 ;; Set up the article buffer now, if necessary.
8884 (unless gnus-single-article-buffer
8885 (gnus-article-setup-buffer))
8886 ;; First and last article in this newsgroup.
8887 (when gnus-newsgroup-headers
8888 (setq gnus-newsgroup-begin
8889 (mail-header-number (car gnus-newsgroup-headers))
8890 gnus-newsgroup-end
8891 (mail-header-number
8892 (gnus-last-element gnus-newsgroup-headers))))
8893 (setq gnus-reffed-article-number -1)
8894 ;; GROUP is successfully selected.
8895 (or gnus-newsgroup-headers t)))))
8897 (defun gnus-articles-to-read (group read-all)
8898 ;; Find out what articles the user wants to read.
8899 (let* ((articles
8900 ;; Select all articles if `read-all' is non-nil, or if there
8901 ;; are no unread articles.
8902 (if (or read-all
8903 (and (zerop (length gnus-newsgroup-marked))
8904 (zerop (length gnus-newsgroup-unreads))))
8905 (gnus-uncompress-range (gnus-active group))
8906 (sort (append gnus-newsgroup-dormant gnus-newsgroup-marked
8907 (copy-sequence gnus-newsgroup-unreads))
8908 '<)))
8909 (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
8910 (scored (length scored-list))
8911 (number (length articles))
8912 (marked (+ (length gnus-newsgroup-marked)
8913 (length gnus-newsgroup-dormant)))
8914 (select
8915 (cond
8916 ((numberp read-all)
8917 read-all)
8919 (condition-case ()
8920 (cond
8921 ((and (or (<= scored marked) (= scored number))
8922 (numberp gnus-large-newsgroup)
8923 (> number gnus-large-newsgroup))
8924 (let ((input
8925 (read-string
8926 (format
8927 "How many articles from %s (default %d): "
8928 gnus-newsgroup-name number))))
8929 (if (string-match "^[ \t]*$" input) number input)))
8930 ((and (> scored marked) (< scored number)
8931 (> (- scored number) 20))
8932 (let ((input
8933 (read-string
8934 (format "%s %s (%d scored, %d total): "
8935 "How many articles from"
8936 group scored number))))
8937 (if (string-match "^[ \t]*$" input)
8938 number input)))
8939 (t number))
8940 (quit nil))))))
8941 (setq select (if (stringp select) (string-to-number select) select))
8942 (if (or (null select) (zerop select))
8943 select
8944 (if (and (not (zerop scored)) (<= (abs select) scored))
8945 (progn
8946 (setq articles (sort scored-list '<))
8947 (setq number (length articles)))
8948 (setq articles (copy-sequence articles)))
8950 (if (< (abs select) number)
8951 (if (< select 0)
8952 ;; Select the N oldest articles.
8953 (setcdr (nthcdr (1- (abs select)) articles) nil)
8954 ;; Select the N most recent articles.
8955 (setq articles (nthcdr (- number select) articles))))
8956 (setq gnus-newsgroup-unselected
8957 (gnus-sorted-intersection
8958 gnus-newsgroup-unreads
8959 (gnus-sorted-complement gnus-newsgroup-unreads articles)))
8960 articles)))
8962 (defun gnus-killed-articles (killed articles)
8963 (let (out)
8964 (while articles
8965 (if (inline (gnus-member-of-range (car articles) killed))
8966 (setq out (cons (car articles) out)))
8967 (setq articles (cdr articles)))
8968 out))
8970 (defun gnus-uncompress-marks (marks)
8971 "Uncompress the mark ranges in MARKS."
8972 (let ((uncompressed '(score bookmark))
8973 out)
8974 (while marks
8975 (if (memq (caar marks) uncompressed)
8976 (push (car marks) out)
8977 (push (cons (caar marks) (gnus-uncompress-range (cdar marks))) out))
8978 (setq marks (cdr marks)))
8979 out))
8981 (defun gnus-adjust-marked-articles (info)
8982 "Set all article lists and remove all marks that are no longer legal."
8983 (let* ((marked-lists (gnus-info-marks info))
8984 (active (gnus-active (gnus-info-group info)))
8985 (min (car active))
8986 (max (cdr active))
8987 (types gnus-article-mark-lists)
8988 (uncompressed '(score bookmark killed))
8989 marks var articles article mark)
8991 (while marked-lists
8992 (setq marks (pop marked-lists))
8993 (set (setq var (intern (format "gnus-newsgroup-%s"
8994 (car (rassq (setq mark (car marks))
8995 types)))))
8996 (if (memq (car marks) uncompressed) (cdr marks)
8997 (gnus-uncompress-range (cdr marks))))
8999 (setq articles (symbol-value var))
9001 ;; All articles have to be subsets of the active articles.
9002 (cond
9003 ;; Adjust "simple" lists.
9004 ((memq mark '(tick dormant expirable reply save))
9005 (while articles
9006 (when (or (< (setq article (pop articles)) min) (> article max))
9007 (set var (delq article (symbol-value var))))))
9008 ;; Adjust assocs.
9009 ((memq mark uncompressed)
9010 (while articles
9011 (when (or (not (consp (setq article (pop articles))))
9012 (< (car article) min)
9013 (> (car article) max))
9014 (set var (delq article (symbol-value var))))))))))
9016 (defun gnus-update-missing-marks (missing)
9017 "Go through the list of MISSING articles and remove them mark lists."
9018 (when missing
9019 (let ((types gnus-article-mark-lists)
9020 var m)
9021 ;; Go through all types.
9022 (while types
9023 (setq var (intern (format "gnus-newsgroup-%s" (car (pop types)))))
9024 (when (symbol-value var)
9025 ;; This list has articles. So we delete all missing articles
9026 ;; from it.
9027 (setq m missing)
9028 (while m
9029 (set var (delq (pop m) (symbol-value var)))))))))
9031 (defun gnus-update-marks ()
9032 "Enter the various lists of marked articles into the newsgroup info list."
9033 (let ((types gnus-article-mark-lists)
9034 (info (gnus-get-info gnus-newsgroup-name))
9035 (uncompressed '(score bookmark killed))
9036 type list newmarked symbol)
9037 (when info
9038 ;; Add all marks lists that are non-nil to the list of marks lists.
9039 (while types
9040 (setq type (pop types))
9041 (when (setq list (symbol-value
9042 (setq symbol
9043 (intern (format "gnus-newsgroup-%s"
9044 (car type))))))
9045 (push (cons (cdr type)
9046 (if (memq (cdr type) uncompressed) list
9047 (gnus-compress-sequence
9048 (set symbol (sort list '<)) t)))
9049 newmarked)))
9051 ;; Enter these new marks into the info of the group.
9052 (if (nthcdr 3 info)
9053 (setcar (nthcdr 3 info) newmarked)
9054 ;; Add the marks lists to the end of the info.
9055 (when newmarked
9056 (setcdr (nthcdr 2 info) (list newmarked))))
9058 ;; Cut off the end of the info if there's nothing else there.
9059 (let ((i 5))
9060 (while (and (> i 2)
9061 (not (nth i info)))
9062 (when (nthcdr (decf i) info)
9063 (setcdr (nthcdr i info) nil)))))))
9065 (defun gnus-add-marked-articles (group type articles &optional info force)
9066 ;; Add ARTICLES of TYPE to the info of GROUP.
9067 ;; If INFO is non-nil, use that info. If FORCE is non-nil, don't
9068 ;; add, but replace marked articles of TYPE with ARTICLES.
9069 (let ((info (or info (gnus-get-info group)))
9070 (uncompressed '(score bookmark killed))
9071 marked m)
9072 (or (not info)
9073 (and (not (setq marked (nthcdr 3 info)))
9074 (or (null articles)
9075 (setcdr (nthcdr 2 info)
9076 (list (list (cons type (gnus-compress-sequence
9077 articles t)))))))
9078 (and (not (setq m (assq type (car marked))))
9079 (or (null articles)
9080 (setcar marked
9081 (cons (cons type (gnus-compress-sequence articles t) )
9082 (car marked)))))
9083 (if force
9084 (if (null articles)
9085 (setcar (nthcdr 3 info)
9086 (delq (assq type (car marked)) (car marked)))
9087 (setcdr m (gnus-compress-sequence articles t)))
9088 (setcdr m (gnus-compress-sequence
9089 (sort (nconc (gnus-uncompress-range (cdr m))
9090 (copy-sequence articles)) '<) t))))))
9092 (defun gnus-set-mode-line (where)
9093 "This function sets the mode line of the article or summary buffers.
9094 If WHERE is `summary', the summary mode line format will be used."
9095 ;; Is this mode line one we keep updated?
9096 (when (memq where gnus-updated-mode-lines)
9097 (let (mode-string)
9098 (save-excursion
9099 ;; We evaluate this in the summary buffer since these
9100 ;; variables are buffer-local to that buffer.
9101 (set-buffer gnus-summary-buffer)
9102 ;; We bind all these variables that are used in the `eval' form
9103 ;; below.
9104 (let* ((mformat (symbol-value
9105 (intern
9106 (format "gnus-%s-mode-line-format-spec" where))))
9107 (gnus-tmp-group-name gnus-newsgroup-name)
9108 (gnus-tmp-article-number (or gnus-current-article 0))
9109 (gnus-tmp-unread gnus-newsgroup-unreads)
9110 (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
9111 (gnus-tmp-unselected (length gnus-newsgroup-unselected))
9112 (gnus-tmp-unread-and-unselected
9113 (cond ((and (zerop gnus-tmp-unread-and-unticked)
9114 (zerop gnus-tmp-unselected)) "")
9115 ((zerop gnus-tmp-unselected)
9116 (format "{%d more}" gnus-tmp-unread-and-unticked))
9117 (t (format "{%d(+%d) more}"
9118 gnus-tmp-unread-and-unticked
9119 gnus-tmp-unselected))))
9120 (gnus-tmp-subject
9121 (if (and gnus-current-headers
9122 (vectorp gnus-current-headers))
9123 (gnus-mode-string-quote
9124 (mail-header-subject gnus-current-headers)) ""))
9125 max-len
9126 gnus-tmp-header);; passed as argument to any user-format-funcs
9127 (setq mode-string (eval mformat))
9128 (setq max-len (max 4 (if gnus-mode-non-string-length
9129 (- (window-width)
9130 gnus-mode-non-string-length)
9131 (length mode-string))))
9132 ;; We might have to chop a bit of the string off...
9133 (when (> (length mode-string) max-len)
9134 (setq mode-string
9135 (concat (gnus-truncate-string mode-string (- max-len 3))
9136 "...")))
9137 ;; Pad the mode string a bit.
9138 (setq mode-string (format (format "%%-%ds" max-len) mode-string))))
9139 ;; Update the mode line.
9140 (setq mode-line-buffer-identification
9141 (gnus-mode-line-buffer-identification
9142 (list mode-string)))
9143 (set-buffer-modified-p t))))
9145 (defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
9146 "Go through the HEADERS list and add all Xrefs to a hash table.
9147 The resulting hash table is returned, or nil if no Xrefs were found."
9148 (let* ((virtual (gnus-virtual-group-p from-newsgroup))
9149 (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
9150 (xref-hashtb (make-vector 63 0))
9151 start group entry number xrefs header)
9152 (while headers
9153 (setq header (pop headers))
9154 (when (and (setq xrefs (mail-header-xref header))
9155 (not (memq (setq number (mail-header-number header))
9156 unreads)))
9157 (setq start 0)
9158 (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
9159 (setq start (match-end 0))
9160 (setq group (if prefix
9161 (concat prefix (substring xrefs (match-beginning 1)
9162 (match-end 1)))
9163 (substring xrefs (match-beginning 1) (match-end 1))))
9164 (setq number
9165 (string-to-int (substring xrefs (match-beginning 2)
9166 (match-end 2))))
9167 (if (setq entry (gnus-gethash group xref-hashtb))
9168 (setcdr entry (cons number (cdr entry)))
9169 (gnus-sethash group (cons number nil) xref-hashtb)))))
9170 (and start xref-hashtb)))
9172 (defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
9173 "Look through all the headers and mark the Xrefs as read."
9174 (let ((virtual (gnus-virtual-group-p from-newsgroup))
9175 name entry info xref-hashtb idlist method nth4)
9176 (save-excursion
9177 (set-buffer gnus-group-buffer)
9178 (when (setq xref-hashtb
9179 (gnus-create-xref-hashtb from-newsgroup headers unreads))
9180 (mapatoms
9181 (lambda (group)
9182 (unless (string= from-newsgroup (setq name (symbol-name group)))
9183 (setq idlist (symbol-value group))
9184 ;; Dead groups are not updated.
9185 (and (prog1
9186 (setq entry (gnus-gethash name gnus-newsrc-hashtb)
9187 info (nth 2 entry))
9188 (if (stringp (setq nth4 (gnus-info-method info)))
9189 (setq nth4 (gnus-server-to-method nth4))))
9190 ;; Only do the xrefs if the group has the same
9191 ;; select method as the group we have just read.
9192 (or (gnus-methods-equal-p
9193 nth4 (gnus-find-method-for-group from-newsgroup))
9194 virtual
9195 (equal nth4 (setq method (gnus-find-method-for-group
9196 from-newsgroup)))
9197 (and (equal (car nth4) (car method))
9198 (equal (nth 1 nth4) (nth 1 method))))
9199 gnus-use-cross-reference
9200 (or (not (eq gnus-use-cross-reference t))
9201 virtual
9202 ;; Only do cross-references on subscribed
9203 ;; groups, if that is what is wanted.
9204 (<= (gnus-info-level info) gnus-level-subscribed))
9205 (gnus-group-make-articles-read name idlist))))
9206 xref-hashtb)))))
9208 (defun gnus-group-make-articles-read (group articles)
9209 (let* ((num 0)
9210 (entry (gnus-gethash group gnus-newsrc-hashtb))
9211 (info (nth 2 entry))
9212 (active (gnus-active group))
9213 range)
9214 ;; First peel off all illegal article numbers.
9215 (if active
9216 (let ((ids articles)
9217 id first)
9218 (while ids
9219 (setq id (car ids))
9220 (if (and first (> id (cdr active)))
9221 (progn
9222 ;; We'll end up in this situation in one particular
9223 ;; obscure situation. If you re-scan a group and get
9224 ;; a new article that is cross-posted to a different
9225 ;; group that has not been re-scanned, you might get
9226 ;; crossposted article that has a higher number than
9227 ;; Gnus believes possible. So we re-activate this
9228 ;; group as well. This might mean doing the
9229 ;; crossposting thingy will *increase* the number
9230 ;; of articles in some groups. Tsk, tsk.
9231 (setq active (or (gnus-activate-group group) active))))
9232 (if (or (> id (cdr active))
9233 (< id (car active)))
9234 (setq articles (delq id articles)))
9235 (setq ids (cdr ids)))))
9236 ;; If the read list is nil, we init it.
9237 (and active
9238 (null (gnus-info-read info))
9239 (> (car active) 1)
9240 (gnus-info-set-read info (cons 1 (1- (car active)))))
9241 ;; Then we add the read articles to the range.
9242 (gnus-info-set-read
9243 info
9244 (setq range
9245 (gnus-add-to-range
9246 (gnus-info-read info) (setq articles (sort articles '<)))))
9247 ;; Then we have to re-compute how many unread
9248 ;; articles there are in this group.
9249 (if active
9250 (progn
9251 (cond
9252 ((not range)
9253 (setq num (- (1+ (cdr active)) (car active))))
9254 ((not (listp (cdr range)))
9255 (setq num (- (cdr active) (- (1+ (cdr range))
9256 (car range)))))
9258 (while range
9259 (if (numberp (car range))
9260 (setq num (1+ num))
9261 (setq num (+ num (- (1+ (cdar range)) (caar range)))))
9262 (setq range (cdr range)))
9263 (setq num (- (cdr active) num))))
9264 ;; Update the number of unread articles.
9265 (setcar entry num)
9266 ;; Update the group buffer.
9267 (gnus-group-update-group group t)))))
9269 (defun gnus-methods-equal-p (m1 m2)
9270 (let ((m1 (or m1 gnus-select-method))
9271 (m2 (or m2 gnus-select-method)))
9272 (or (equal m1 m2)
9273 (and (eq (car m1) (car m2))
9274 (or (not (memq 'address (assoc (symbol-name (car m1))
9275 gnus-valid-select-methods)))
9276 (equal (nth 1 m1) (nth 1 m2)))))))
9278 (defsubst gnus-header-value ()
9279 (buffer-substring (match-end 0) (gnus-point-at-eol)))
9281 (defvar gnus-newsgroup-none-id 0)
9283 (defun gnus-get-newsgroup-headers (&optional dependencies force-new)
9284 (let ((cur nntp-server-buffer)
9285 (dependencies
9286 (or dependencies
9287 (save-excursion (set-buffer gnus-summary-buffer)
9288 gnus-newsgroup-dependencies)))
9289 headers id id-dep ref-dep end ref)
9290 (save-excursion
9291 (set-buffer nntp-server-buffer)
9292 (run-hooks 'gnus-parse-headers-hook)
9293 (let ((case-fold-search t)
9294 in-reply-to header p lines)
9295 (goto-char (point-min))
9296 ;; Search to the beginning of the next header. Error messages
9297 ;; do not begin with 2 or 3.
9298 (while (re-search-forward "^[23][0-9]+ " nil t)
9299 (setq id nil
9300 ref nil)
9301 ;; This implementation of this function, with nine
9302 ;; search-forwards instead of the one re-search-forward and
9303 ;; a case (which basically was the old function) is actually
9304 ;; about twice as fast, even though it looks messier. You
9305 ;; can't have everything, I guess. Speed and elegance
9306 ;; doesn't always go hand in hand.
9307 (setq
9308 header
9309 (vector
9310 ;; Number.
9311 (prog1
9312 (read cur)
9313 (end-of-line)
9314 (setq p (point))
9315 (narrow-to-region (point)
9316 (or (and (search-forward "\n.\n" nil t)
9317 (- (point) 2))
9318 (point))))
9319 ;; Subject.
9320 (progn
9321 (goto-char p)
9322 (if (search-forward "\nsubject: " nil t)
9323 (gnus-header-value) "(none)"))
9324 ;; From.
9325 (progn
9326 (goto-char p)
9327 (if (search-forward "\nfrom: " nil t)
9328 (gnus-header-value) "(nobody)"))
9329 ;; Date.
9330 (progn
9331 (goto-char p)
9332 (if (search-forward "\ndate: " nil t)
9333 (gnus-header-value) ""))
9334 ;; Message-ID.
9335 (progn
9336 (goto-char p)
9337 (if (search-forward "\nmessage-id: " nil t)
9338 (setq id (gnus-header-value))
9339 ;; If there was no message-id, we just fake one to make
9340 ;; subsequent routines simpler.
9341 (setq id (concat "none+"
9342 (int-to-string
9343 (setq gnus-newsgroup-none-id
9344 (1+ gnus-newsgroup-none-id)))))))
9345 ;; References.
9346 (progn
9347 (goto-char p)
9348 (if (search-forward "\nreferences: " nil t)
9349 (progn
9350 (setq end (point))
9351 (prog1
9352 (gnus-header-value)
9353 (setq ref
9354 (buffer-substring
9355 (progn
9356 (end-of-line)
9357 (search-backward ">" end t)
9358 (1+ (point)))
9359 (progn
9360 (search-backward "<" end t)
9361 (point))))))
9362 ;; Get the references from the in-reply-to header if there
9363 ;; were no references and the in-reply-to header looks
9364 ;; promising.
9365 (if (and (search-forward "\nin-reply-to: " nil t)
9366 (setq in-reply-to (gnus-header-value))
9367 (string-match "<[^>]+>" in-reply-to))
9368 (setq ref (substring in-reply-to (match-beginning 0)
9369 (match-end 0)))
9370 (setq ref ""))))
9371 ;; Chars.
9373 ;; Lines.
9374 (progn
9375 (goto-char p)
9376 (if (search-forward "\nlines: " nil t)
9377 (if (numberp (setq lines (read cur)))
9378 lines 0)
9380 ;; Xref.
9381 (progn
9382 (goto-char p)
9383 (and (search-forward "\nxref: " nil t)
9384 (gnus-header-value)))))
9385 ;; We do the threading while we read the headers. The
9386 ;; message-id and the last reference are both entered into
9387 ;; the same hash table. Some tippy-toeing around has to be
9388 ;; done in case an article has arrived before the article
9389 ;; which it refers to.
9390 (if (boundp (setq id-dep (intern id dependencies)))
9391 (if (and (car (symbol-value id-dep))
9392 (not force-new))
9393 ;; An article with this Message-ID has already
9394 ;; been seen, so we ignore this one, except we add
9395 ;; any additional Xrefs (in case the two articles
9396 ;; came from different servers).
9397 (progn
9398 (mail-header-set-xref
9399 (car (symbol-value id-dep))
9400 (concat (or (mail-header-xref
9401 (car (symbol-value id-dep))) "")
9402 (or (mail-header-xref header) "")))
9403 (setq header nil))
9404 (setcar (symbol-value id-dep) header))
9405 (set id-dep (list header)))
9406 (when header
9407 (if (boundp (setq ref-dep (intern ref dependencies)))
9408 (setcdr (symbol-value ref-dep)
9409 (nconc (cdr (symbol-value ref-dep))
9410 (list (symbol-value id-dep))))
9411 (set ref-dep (list nil (symbol-value id-dep))))
9412 (setq headers (cons header headers)))
9413 (goto-char (point-max))
9414 (widen))
9415 (nreverse headers)))))
9417 ;; The following macros and functions were written by Felix Lee
9418 ;; <flee@cse.psu.edu>.
9420 (defmacro gnus-nov-read-integer ()
9421 '(prog1
9422 (if (= (following-char) ?\t)
9424 (let ((num (condition-case nil (read buffer) (error nil))))
9425 (if (numberp num) num 0)))
9426 (or (eobp) (forward-char 1))))
9428 (defmacro gnus-nov-skip-field ()
9429 '(search-forward "\t" eol 'move))
9431 (defmacro gnus-nov-field ()
9432 '(buffer-substring (point) (if (gnus-nov-skip-field) (1- (point)) eol)))
9434 ;; Goes through the xover lines and returns a list of vectors
9435 (defun gnus-get-newsgroup-headers-xover (sequence &optional
9436 force-new dependencies)
9437 "Parse the news overview data in the server buffer, and return a
9438 list of headers that match SEQUENCE (see `nntp-retrieve-headers')."
9439 ;; Get the Xref when the users reads the articles since most/some
9440 ;; NNTP servers do not include Xrefs when using XOVER.
9441 (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
9442 (let ((cur nntp-server-buffer)
9443 (dependencies (or dependencies gnus-newsgroup-dependencies))
9444 number headers header)
9445 (save-excursion
9446 (set-buffer nntp-server-buffer)
9447 ;; Allow the user to mangle the headers before parsing them.
9448 (run-hooks 'gnus-parse-headers-hook)
9449 (goto-char (point-min))
9450 (while (and sequence (not (eobp)))
9451 (setq number (read cur))
9452 (while (and sequence (< (car sequence) number))
9453 (setq sequence (cdr sequence)))
9454 (and sequence
9455 (eq number (car sequence))
9456 (progn
9457 (setq sequence (cdr sequence))
9458 (if (setq header
9459 (inline (gnus-nov-parse-line
9460 number dependencies force-new)))
9461 (setq headers (cons header headers)))))
9462 (forward-line 1))
9463 (setq headers (nreverse headers)))
9464 headers))
9466 ;; This function has to be called with point after the article number
9467 ;; on the beginning of the line.
9468 (defun gnus-nov-parse-line (number dependencies &optional force-new)
9469 (let ((none 0)
9470 (eol (gnus-point-at-eol))
9471 (buffer (current-buffer))
9472 header ref id id-dep ref-dep)
9474 ;; overview: [num subject from date id refs chars lines misc]
9475 (narrow-to-region (point) eol)
9476 (or (eobp) (forward-char))
9478 (condition-case nil
9479 (setq header
9480 (vector
9481 number ; number
9482 (gnus-nov-field) ; subject
9483 (gnus-nov-field) ; from
9484 (gnus-nov-field) ; date
9485 (setq id (or (gnus-nov-field)
9486 (concat "none+"
9487 (int-to-string
9488 (setq none (1+ none)))))) ; id
9489 (progn
9490 (save-excursion
9491 (let ((beg (point)))
9492 (search-forward "\t" eol)
9493 (if (search-backward ">" beg t)
9494 (setq ref
9495 (buffer-substring
9496 (1+ (point))
9497 (search-backward "<" beg t)))
9498 (setq ref nil))))
9499 (gnus-nov-field)) ; refs
9500 (gnus-nov-read-integer) ; chars
9501 (gnus-nov-read-integer) ; lines
9502 (if (= (following-char) ?\n)
9504 (gnus-nov-field)) ; misc
9506 (error (progn
9507 (gnus-error 4 "Strange nov line")
9508 (setq header nil)
9509 (goto-char eol))))
9511 (widen)
9513 ;; We build the thread tree.
9514 (when header
9515 (if (boundp (setq id-dep (intern id dependencies)))
9516 (if (and (car (symbol-value id-dep))
9517 (not force-new))
9518 ;; An article with this Message-ID has already been seen,
9519 ;; so we ignore this one, except we add any additional
9520 ;; Xrefs (in case the two articles came from different
9521 ;; servers.
9522 (progn
9523 (mail-header-set-xref
9524 (car (symbol-value id-dep))
9525 (concat (or (mail-header-xref
9526 (car (symbol-value id-dep))) "")
9527 (or (mail-header-xref header) "")))
9528 (setq header nil))
9529 (setcar (symbol-value id-dep) header))
9530 (set id-dep (list header))))
9531 (when header
9532 (if (boundp (setq ref-dep (intern (or ref "none") dependencies)))
9533 (setcdr (symbol-value ref-dep)
9534 (nconc (cdr (symbol-value ref-dep))
9535 (list (symbol-value id-dep))))
9536 (set ref-dep (list nil (symbol-value id-dep)))))
9537 header))
9539 (defun gnus-article-get-xrefs ()
9540 "Fill in the Xref value in `gnus-current-headers', if necessary.
9541 This is meant to be called in `gnus-article-internal-prepare-hook'."
9542 (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
9543 gnus-current-headers)))
9544 (or (not gnus-use-cross-reference)
9545 (not headers)
9546 (and (mail-header-xref headers)
9547 (not (string= (mail-header-xref headers) "")))
9548 (let ((case-fold-search t)
9549 xref)
9550 (save-restriction
9551 (nnheader-narrow-to-headers)
9552 (goto-char (point-min))
9553 (if (or (and (eq (downcase (following-char)) ?x)
9554 (looking-at "Xref:"))
9555 (search-forward "\nXref:" nil t))
9556 (progn
9557 (goto-char (1+ (match-end 0)))
9558 (setq xref (buffer-substring (point)
9559 (progn (end-of-line) (point))))
9560 (mail-header-set-xref headers xref))))))))
9562 (defun gnus-summary-insert-subject (id &optional old-header use-old-header)
9563 "Find article ID and insert the summary line for that article."
9564 (let ((header (if (and old-header use-old-header)
9565 old-header (gnus-read-header id)))
9566 (number (and (numberp id) id))
9567 pos)
9568 (when header
9569 ;; Rebuild the thread that this article is part of and go to the
9570 ;; article we have fetched.
9571 (when (and (not gnus-show-threads)
9572 old-header)
9573 (when (setq pos (text-property-any
9574 (point-min) (point-max) 'gnus-number
9575 (mail-header-number old-header)))
9576 (goto-char pos)
9577 (gnus-delete-line)
9578 (gnus-data-remove (mail-header-number old-header))))
9579 (when old-header
9580 (mail-header-set-number header (mail-header-number old-header)))
9581 (setq gnus-newsgroup-sparse
9582 (delq (setq number (mail-header-number header))
9583 gnus-newsgroup-sparse))
9584 (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
9585 (gnus-rebuild-thread (mail-header-id header))
9586 (gnus-summary-goto-subject number nil t))
9587 (when (and (numberp number)
9588 (> number 0))
9589 ;; We have to update the boundaries even if we can't fetch the
9590 ;; article if ID is a number -- so that the next `P' or `N'
9591 ;; command will fetch the previous (or next) article even
9592 ;; if the one we tried to fetch this time has been canceled.
9593 (and (> number gnus-newsgroup-end)
9594 (setq gnus-newsgroup-end number))
9595 (and (< number gnus-newsgroup-begin)
9596 (setq gnus-newsgroup-begin number))
9597 (setq gnus-newsgroup-unselected
9598 (delq number gnus-newsgroup-unselected)))
9599 ;; Report back a success?
9600 (and header (mail-header-number header))))
9602 (defun gnus-summary-work-articles (n)
9603 "Return a list of articles to be worked upon. The prefix argument,
9604 the list of process marked articles, and the current article will be
9605 taken into consideration."
9606 (cond
9608 ;; A numerical prefix has been given.
9609 (let ((backward (< n 0))
9610 (n (abs (prefix-numeric-value n)))
9611 articles article)
9612 (save-excursion
9613 (while
9614 (and (> n 0)
9615 (push (setq article (gnus-summary-article-number))
9616 articles)
9617 (if backward
9618 (gnus-summary-find-prev nil article)
9619 (gnus-summary-find-next nil article)))
9620 (decf n)))
9621 (nreverse articles)))
9622 ((and (boundp 'transient-mark-mode)
9623 transient-mark-mode
9624 mark-active)
9625 ;; Work on the region between point and mark.
9626 (let ((max (max (point) (mark)))
9627 articles article)
9628 (save-excursion
9629 (goto-char (min (point) (mark)))
9630 (while
9631 (and
9632 (push (setq article (gnus-summary-article-number)) articles)
9633 (gnus-summary-find-next nil article)
9634 (< (point) max)))
9635 (nreverse articles))))
9636 (gnus-newsgroup-processable
9637 ;; There are process-marked articles present.
9638 (reverse gnus-newsgroup-processable))
9640 ;; Just return the current article.
9641 (list (gnus-summary-article-number)))))
9643 (defun gnus-summary-search-group (&optional backward use-level)
9644 "Search for next unread newsgroup.
9645 If optional argument BACKWARD is non-nil, search backward instead."
9646 (save-excursion
9647 (set-buffer gnus-group-buffer)
9648 (if (gnus-group-search-forward
9649 backward nil (if use-level (gnus-group-group-level) nil))
9650 (gnus-group-group-name))))
9652 (defun gnus-summary-best-group (&optional exclude-group)
9653 "Find the name of the best unread group.
9654 If EXCLUDE-GROUP, do not go to this group."
9655 (save-excursion
9656 (set-buffer gnus-group-buffer)
9657 (save-excursion
9658 (gnus-group-best-unread-group exclude-group))))
9660 (defun gnus-summary-find-next (&optional unread article backward)
9661 (if backward (gnus-summary-find-prev)
9662 (let* ((dummy (gnus-summary-article-intangible-p))
9663 (article (or article (gnus-summary-article-number)))
9664 (arts (gnus-data-find-list article))
9665 result)
9666 (when (and (not dummy)
9667 (or (not gnus-summary-check-current)
9668 (not unread)
9669 (not (gnus-data-unread-p (car arts)))))
9670 (setq arts (cdr arts)))
9671 (when (setq result
9672 (if unread
9673 (progn
9674 (while arts
9675 (when (gnus-data-unread-p (car arts))
9676 (setq result (car arts)
9677 arts nil))
9678 (setq arts (cdr arts)))
9679 result)
9680 (car arts)))
9681 (goto-char (gnus-data-pos result))
9682 (gnus-data-number result)))))
9684 (defun gnus-summary-find-prev (&optional unread article)
9685 (let* ((eobp (eobp))
9686 (article (or article (gnus-summary-article-number)))
9687 (arts (gnus-data-find-list article (gnus-data-list 'rev)))
9688 result)
9689 (when (and (not eobp)
9690 (or (not gnus-summary-check-current)
9691 (not unread)
9692 (not (gnus-data-unread-p (car arts)))))
9693 (setq arts (cdr arts)))
9694 (if (setq result
9695 (if unread
9696 (progn
9697 (while arts
9698 (and (gnus-data-unread-p (car arts))
9699 (setq result (car arts)
9700 arts nil))
9701 (setq arts (cdr arts)))
9702 result)
9703 (car arts)))
9704 (progn
9705 (goto-char (gnus-data-pos result))
9706 (gnus-data-number result)))))
9708 (defun gnus-summary-find-subject (subject &optional unread backward article)
9709 (let* ((simp-subject (gnus-simplify-subject-fully subject))
9710 (article (or article (gnus-summary-article-number)))
9711 (articles (gnus-data-list backward))
9712 (arts (gnus-data-find-list article articles))
9713 result)
9714 (when (or (not gnus-summary-check-current)
9715 (not unread)
9716 (not (gnus-data-unread-p (car arts))))
9717 (setq arts (cdr arts)))
9718 (while arts
9719 (and (or (not unread)
9720 (gnus-data-unread-p (car arts)))
9721 (vectorp (gnus-data-header (car arts)))
9722 (gnus-subject-equal
9723 simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
9724 (setq result (car arts)
9725 arts nil))
9726 (setq arts (cdr arts)))
9727 (and result
9728 (goto-char (gnus-data-pos result))
9729 (gnus-data-number result))))
9731 (defun gnus-summary-search-forward (&optional unread subject backward)
9732 "Search forward for an article.
9733 If UNREAD, look for unread articles. If SUBJECT, look for
9734 articles with that subject. If BACKWARD, search backward instead."
9735 (cond (subject (gnus-summary-find-subject subject unread backward))
9736 (backward (gnus-summary-find-prev unread))
9737 (t (gnus-summary-find-next unread))))
9739 (defun gnus-recenter (&optional n)
9740 "Center point in window and redisplay frame.
9741 Also do horizontal recentering."
9742 (interactive "P")
9743 (when (and gnus-auto-center-summary
9744 (not (eq gnus-auto-center-summary 'vertical)))
9745 (gnus-horizontal-recenter))
9746 (recenter n))
9748 (defun gnus-summary-recenter ()
9749 "Center point in the summary window.
9750 If `gnus-auto-center-summary' is nil, or the article buffer isn't
9751 displayed, no centering will be performed."
9752 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
9753 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
9754 (let* ((top (cond ((< (window-height) 4) 0)
9755 ((< (window-height) 7) 1)
9756 (t 2)))
9757 (height (1- (window-height)))
9758 (bottom (save-excursion (goto-char (point-max))
9759 (forward-line (- height))
9760 (point)))
9761 (window (get-buffer-window (current-buffer))))
9762 ;; The user has to want it.
9763 (when gnus-auto-center-summary
9764 (when (get-buffer-window gnus-article-buffer)
9765 ;; Only do recentering when the article buffer is displayed,
9766 ;; Set the window start to either `bottom', which is the biggest
9767 ;; possible valid number, or the second line from the top,
9768 ;; whichever is the least.
9769 (set-window-start
9770 window (min bottom (save-excursion
9771 (forward-line (- top)) (point)))))
9772 ;; Do horizontal recentering while we're at it.
9773 (when (and (get-buffer-window (current-buffer) t)
9774 (not (eq gnus-auto-center-summary 'vertical)))
9775 (let ((selected (selected-window)))
9776 (select-window (get-buffer-window (current-buffer) t))
9777 (gnus-summary-position-point)
9778 (gnus-horizontal-recenter)
9779 (select-window selected))))))
9781 (defun gnus-horizontal-recenter ()
9782 "Recenter the current buffer horizontally."
9783 (if (< (current-column) (/ (window-width) 2))
9784 (set-window-hscroll (get-buffer-window (current-buffer) t) 0)
9785 (let* ((orig (point))
9786 (end (window-end (get-buffer-window (current-buffer) t)))
9787 (max 0))
9788 ;; Find the longest line currently displayed in the window.
9789 (goto-char (window-start))
9790 (while (and (not (eobp))
9791 (< (point) end))
9792 (end-of-line)
9793 (setq max (max max (current-column)))
9794 (forward-line 1))
9795 (goto-char orig)
9796 ;; Scroll horizontally to center (sort of) the point.
9797 (if (> max (window-width))
9798 (set-window-hscroll
9799 (get-buffer-window (current-buffer) t)
9800 (min (- (current-column) (/ (window-width) 3))
9801 (+ 2 (- max (window-width)))))
9802 (set-window-hscroll (get-buffer-window (current-buffer) t) 0))
9803 max)))
9805 ;; Function written by Stainless Steel Rat <ratinox@ccs.neu.edu>.
9806 (defun gnus-short-group-name (group &optional levels)
9807 "Collapse GROUP name LEVELS."
9808 (let* ((name "")
9809 (foreign "")
9810 (depth 0)
9811 (skip 1)
9812 (levels (or levels
9813 (progn
9814 (while (string-match "\\." group skip)
9815 (setq skip (match-end 0)
9816 depth (+ depth 1)))
9817 depth))))
9818 (if (string-match ":" group)
9819 (setq foreign (substring group 0 (match-end 0))
9820 group (substring group (match-end 0))))
9821 (while group
9822 (if (and (string-match "\\." group)
9823 (> levels (- gnus-group-uncollapsed-levels 1)))
9824 (setq name (concat name (substring group 0 1))
9825 group (substring group (match-end 0))
9826 levels (- levels 1)
9827 name (concat name "."))
9828 (setq name (concat foreign name group)
9829 group nil)))
9830 name))
9832 (defun gnus-summary-jump-to-group (newsgroup)
9833 "Move point to NEWSGROUP in group mode buffer."
9834 ;; Keep update point of group mode buffer if visible.
9835 (if (eq (current-buffer) (get-buffer gnus-group-buffer))
9836 (save-window-excursion
9837 ;; Take care of tree window mode.
9838 (if (get-buffer-window gnus-group-buffer)
9839 (pop-to-buffer gnus-group-buffer))
9840 (gnus-group-jump-to-group newsgroup))
9841 (save-excursion
9842 ;; Take care of tree window mode.
9843 (if (get-buffer-window gnus-group-buffer)
9844 (pop-to-buffer gnus-group-buffer)
9845 (set-buffer gnus-group-buffer))
9846 (gnus-group-jump-to-group newsgroup))))
9848 ;; This function returns a list of article numbers based on the
9849 ;; difference between the ranges of read articles in this group and
9850 ;; the range of active articles.
9851 (defun gnus-list-of-unread-articles (group)
9852 (let* ((read (gnus-info-read (gnus-get-info group)))
9853 (active (gnus-active group))
9854 (last (cdr active))
9855 first nlast unread)
9856 ;; If none are read, then all are unread.
9857 (if (not read)
9858 (setq first (car active))
9859 ;; If the range of read articles is a single range, then the
9860 ;; first unread article is the article after the last read
9861 ;; article. Sounds logical, doesn't it?
9862 (if (not (listp (cdr read)))
9863 (setq first (1+ (cdr read)))
9864 ;; `read' is a list of ranges.
9865 (if (/= (setq nlast (or (and (numberp (car read)) (car read))
9866 (caar read))) 1)
9867 (setq first 1))
9868 (while read
9869 (if first
9870 (while (< first nlast)
9871 (setq unread (cons first unread))
9872 (setq first (1+ first))))
9873 (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
9874 (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
9875 (setq read (cdr read)))))
9876 ;; And add the last unread articles.
9877 (while (<= first last)
9878 (setq unread (cons first unread))
9879 (setq first (1+ first)))
9880 ;; Return the list of unread articles.
9881 (nreverse unread)))
9883 (defun gnus-list-of-read-articles (group)
9884 "Return a list of unread, unticked and non-dormant articles."
9885 (let* ((info (gnus-get-info group))
9886 (marked (gnus-info-marks info))
9887 (active (gnus-active group)))
9888 (and info active
9889 (gnus-set-difference
9890 (gnus-sorted-complement
9891 (gnus-uncompress-range active)
9892 (gnus-list-of-unread-articles group))
9893 (append
9894 (gnus-uncompress-range (cdr (assq 'dormant marked)))
9895 (gnus-uncompress-range (cdr (assq 'tick marked))))))))
9897 ;; Various summary commands
9899 (defun gnus-summary-universal-argument (arg)
9900 "Perform any operation on all articles that are process/prefixed."
9901 (interactive "P")
9902 (gnus-set-global-variables)
9903 (let ((articles (gnus-summary-work-articles arg))
9904 func article)
9905 (if (eq
9906 (setq
9907 func
9908 (key-binding
9909 (read-key-sequence
9910 (substitute-command-keys
9911 "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"
9912 ))))
9913 'undefined)
9914 (gnus-error 1 "Undefined key")
9915 (save-excursion
9916 (while articles
9917 (gnus-summary-goto-subject (setq article (pop articles)))
9918 (command-execute func)
9919 (gnus-summary-remove-process-mark article)))))
9920 (gnus-summary-position-point))
9922 (defun gnus-summary-toggle-truncation (&optional arg)
9923 "Toggle truncation of summary lines.
9924 With arg, turn line truncation on iff arg is positive."
9925 (interactive "P")
9926 (setq truncate-lines
9927 (if (null arg) (not truncate-lines)
9928 (> (prefix-numeric-value arg) 0)))
9929 (redraw-display))
9931 (defun gnus-summary-reselect-current-group (&optional all rescan)
9932 "Exit and then reselect the current newsgroup.
9933 The prefix argument ALL means to select all articles."
9934 (interactive "P")
9935 (gnus-set-global-variables)
9936 (when (gnus-ephemeral-group-p gnus-newsgroup-name)
9937 (error "Ephemeral groups can't be reselected"))
9938 (let ((current-subject (gnus-summary-article-number))
9939 (group gnus-newsgroup-name))
9940 (setq gnus-newsgroup-begin nil)
9941 (gnus-summary-exit)
9942 ;; We have to adjust the point of group mode buffer because the
9943 ;; current point was moved to the next unread newsgroup by
9944 ;; exiting.
9945 (gnus-summary-jump-to-group group)
9946 (when rescan
9947 (save-excursion
9948 (gnus-group-get-new-news-this-group 1)))
9949 (gnus-group-read-group all t)
9950 (gnus-summary-goto-subject current-subject nil t)))
9952 (defun gnus-summary-rescan-group (&optional all)
9953 "Exit the newsgroup, ask for new articles, and select the newsgroup."
9954 (interactive "P")
9955 (gnus-summary-reselect-current-group all t))
9957 (defun gnus-summary-update-info ()
9958 (let* ((group gnus-newsgroup-name))
9959 (when gnus-newsgroup-kill-headers
9960 (setq gnus-newsgroup-killed
9961 (gnus-compress-sequence
9962 (nconc
9963 (gnus-set-sorted-intersection
9964 (gnus-uncompress-range gnus-newsgroup-killed)
9965 (setq gnus-newsgroup-unselected
9966 (sort gnus-newsgroup-unselected '<)))
9967 (setq gnus-newsgroup-unreads
9968 (sort gnus-newsgroup-unreads '<))) t)))
9969 (unless (listp (cdr gnus-newsgroup-killed))
9970 (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
9971 (let ((headers gnus-newsgroup-headers))
9972 (run-hooks 'gnus-exit-group-hook)
9973 (unless gnus-save-score
9974 (setq gnus-newsgroup-scored nil))
9975 ;; Set the new ranges of read articles.
9976 (gnus-update-read-articles
9977 group (append gnus-newsgroup-unreads gnus-newsgroup-unselected))
9978 ;; Set the current article marks.
9979 (gnus-update-marks)
9980 ;; Do the cross-ref thing.
9981 (when gnus-use-cross-reference
9982 (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
9983 ;; Do adaptive scoring, and possibly save score files.
9984 (when gnus-newsgroup-adaptive
9985 (gnus-score-adaptive))
9986 (when gnus-use-scoring
9987 (gnus-score-save))
9988 ;; Do not switch windows but change the buffer to work.
9989 (set-buffer gnus-group-buffer)
9990 (or (gnus-ephemeral-group-p gnus-newsgroup-name)
9991 (gnus-group-update-group group)))))
9993 (defun gnus-summary-exit (&optional temporary)
9994 "Exit reading current newsgroup, and then return to group selection mode.
9995 gnus-exit-group-hook is called with no arguments if that value is non-nil."
9996 (interactive)
9997 (gnus-set-global-variables)
9998 (gnus-kill-save-kill-buffer)
9999 (let* ((group gnus-newsgroup-name)
10000 (quit-config (gnus-group-quit-config gnus-newsgroup-name))
10001 (mode major-mode)
10002 (buf (current-buffer)))
10003 (run-hooks 'gnus-summary-prepare-exit-hook)
10004 ;; If we have several article buffers, we kill them at exit.
10005 (unless gnus-single-article-buffer
10006 (gnus-kill-buffer gnus-original-article-buffer)
10007 (setq gnus-article-current nil))
10008 (when gnus-use-cache
10009 (gnus-cache-possibly-remove-articles)
10010 (gnus-cache-save-buffers))
10011 (when gnus-use-trees
10012 (gnus-tree-close group))
10013 ;; Make all changes in this group permanent.
10014 (unless quit-config
10015 (gnus-summary-update-info))
10016 (gnus-close-group group)
10017 ;; Make sure where I was, and go to next newsgroup.
10018 (set-buffer gnus-group-buffer)
10019 (unless quit-config
10020 (gnus-group-jump-to-group group))
10021 (run-hooks 'gnus-summary-exit-hook)
10022 (unless quit-config
10023 (gnus-group-next-unread-group 1))
10024 (if temporary
10025 nil ;Nothing to do.
10026 ;; If we have several article buffers, we kill them at exit.
10027 (unless gnus-single-article-buffer
10028 (gnus-kill-buffer gnus-article-buffer)
10029 (gnus-kill-buffer gnus-original-article-buffer)
10030 (setq gnus-article-current nil))
10031 (set-buffer buf)
10032 (if (not gnus-kill-summary-on-exit)
10033 (gnus-deaden-summary)
10034 ;; We set all buffer-local variables to nil. It is unclear why
10035 ;; this is needed, but if we don't, buffer-local variables are
10036 ;; not garbage-collected, it seems. This would the lead to en
10037 ;; ever-growing Emacs.
10038 (gnus-summary-clear-local-variables)
10039 (when (get-buffer gnus-article-buffer)
10040 (bury-buffer gnus-article-buffer))
10041 ;; We clear the global counterparts of the buffer-local
10042 ;; variables as well, just to be on the safe side.
10043 (gnus-configure-windows 'group 'force)
10044 (gnus-summary-clear-local-variables)
10045 ;; Return to group mode buffer.
10046 (if (eq mode 'gnus-summary-mode)
10047 (gnus-kill-buffer buf)))
10048 (setq gnus-current-select-method gnus-select-method)
10049 (pop-to-buffer gnus-group-buffer)
10050 ;; Clear the current group name.
10051 (if (not quit-config)
10052 (progn
10053 (gnus-group-jump-to-group group)
10054 (gnus-group-next-unread-group 1)
10055 (gnus-configure-windows 'group 'force))
10056 (if (not (buffer-name (car quit-config)))
10057 (gnus-configure-windows 'group 'force)
10058 (set-buffer (car quit-config))
10059 (and (eq major-mode 'gnus-summary-mode)
10060 (gnus-set-global-variables))
10061 (gnus-configure-windows (cdr quit-config))))
10062 (unless quit-config
10063 (setq gnus-newsgroup-name nil)))))
10065 (defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
10066 (defun gnus-summary-exit-no-update (&optional no-questions)
10067 "Quit reading current newsgroup without updating read article info."
10068 (interactive)
10069 (gnus-set-global-variables)
10070 (let* ((group gnus-newsgroup-name)
10071 (quit-config (gnus-group-quit-config group)))
10072 (when (or no-questions
10073 gnus-expert-user
10074 (gnus-y-or-n-p "Do you really wanna quit reading this group? "))
10075 ;; If we have several article buffers, we kill them at exit.
10076 (unless gnus-single-article-buffer
10077 (gnus-kill-buffer gnus-article-buffer)
10078 (gnus-kill-buffer gnus-original-article-buffer)
10079 (setq gnus-article-current nil))
10080 (if (not gnus-kill-summary-on-exit)
10081 (gnus-deaden-summary)
10082 (gnus-close-group group)
10083 (gnus-summary-clear-local-variables)
10084 (set-buffer gnus-group-buffer)
10085 (gnus-summary-clear-local-variables)
10086 (when (get-buffer gnus-summary-buffer)
10087 (kill-buffer gnus-summary-buffer)))
10088 (unless gnus-single-article-buffer
10089 (setq gnus-article-current nil))
10090 (when gnus-use-trees
10091 (gnus-tree-close group))
10092 (when (get-buffer gnus-article-buffer)
10093 (bury-buffer gnus-article-buffer))
10094 ;; Return to the group buffer.
10095 (gnus-configure-windows 'group 'force)
10096 ;; Clear the current group name.
10097 (setq gnus-newsgroup-name nil)
10098 (when (equal (gnus-group-group-name) group)
10099 (gnus-group-next-unread-group 1))
10100 (when quit-config
10101 (if (not (buffer-name (car quit-config)))
10102 (gnus-configure-windows 'group 'force)
10103 (set-buffer (car quit-config))
10104 (when (eq major-mode 'gnus-summary-mode)
10105 (gnus-set-global-variables))
10106 (gnus-configure-windows (cdr quit-config)))))))
10108 ;;; Dead summaries.
10110 (defvar gnus-dead-summary-mode-map nil)
10112 (if gnus-dead-summary-mode-map
10114 (setq gnus-dead-summary-mode-map (make-keymap))
10115 (suppress-keymap gnus-dead-summary-mode-map)
10116 (substitute-key-definition
10117 'undefined 'gnus-summary-wake-up-the-dead gnus-dead-summary-mode-map)
10118 (let ((keys '("\C-d" "\r" "\177")))
10119 (while keys
10120 (define-key gnus-dead-summary-mode-map
10121 (pop keys) 'gnus-summary-wake-up-the-dead))))
10123 (defvar gnus-dead-summary-mode nil
10124 "Minor mode for Gnus summary buffers.")
10126 (defun gnus-dead-summary-mode (&optional arg)
10127 "Minor mode for Gnus summary buffers."
10128 (interactive "P")
10129 (when (eq major-mode 'gnus-summary-mode)
10130 (make-local-variable 'gnus-dead-summary-mode)
10131 (setq gnus-dead-summary-mode
10132 (if (null arg) (not gnus-dead-summary-mode)
10133 (> (prefix-numeric-value arg) 0)))
10134 (when gnus-dead-summary-mode
10135 (unless (assq 'gnus-dead-summary-mode minor-mode-alist)
10136 (push '(gnus-dead-summary-mode " Dead") minor-mode-alist))
10137 (unless (assq 'gnus-dead-summary-mode minor-mode-map-alist)
10138 (push (cons 'gnus-dead-summary-mode gnus-dead-summary-mode-map)
10139 minor-mode-map-alist)))))
10141 (defun gnus-deaden-summary ()
10142 "Make the current summary buffer into a dead summary buffer."
10143 ;; Kill any previous dead summary buffer.
10144 (when (and gnus-dead-summary
10145 (buffer-name gnus-dead-summary))
10146 (save-excursion
10147 (set-buffer gnus-dead-summary)
10148 (when gnus-dead-summary-mode
10149 (kill-buffer (current-buffer)))))
10150 ;; Make this the current dead summary.
10151 (setq gnus-dead-summary (current-buffer))
10152 (gnus-dead-summary-mode 1)
10153 (let ((name (buffer-name)))
10154 (when (string-match "Summary" name)
10155 (rename-buffer
10156 (concat (substring name 0 (match-beginning 0)) "Dead "
10157 (substring name (match-beginning 0))) t))))
10159 (defun gnus-kill-or-deaden-summary (buffer)
10160 "Kill or deaden the summary BUFFER."
10161 (when (and (buffer-name buffer)
10162 (not gnus-single-article-buffer))
10163 (save-excursion
10164 (set-buffer buffer)
10165 (gnus-kill-buffer gnus-article-buffer)
10166 (gnus-kill-buffer gnus-original-article-buffer)))
10167 (cond (gnus-kill-summary-on-exit
10168 (when (and gnus-use-trees
10169 (and (get-buffer buffer)
10170 (buffer-name (get-buffer buffer))))
10171 (save-excursion
10172 (set-buffer (get-buffer buffer))
10173 (gnus-tree-close gnus-newsgroup-name)))
10174 (gnus-kill-buffer buffer))
10175 ((and (get-buffer buffer)
10176 (buffer-name (get-buffer buffer)))
10177 (save-excursion
10178 (set-buffer buffer)
10179 (gnus-deaden-summary)))))
10181 (defun gnus-summary-wake-up-the-dead (&rest args)
10182 "Wake up the dead summary buffer."
10183 (interactive)
10184 (gnus-dead-summary-mode -1)
10185 (let ((name (buffer-name)))
10186 (when (string-match "Dead " name)
10187 (rename-buffer
10188 (concat (substring name 0 (match-beginning 0))
10189 (substring name (match-end 0))) t)))
10190 (gnus-message 3 "This dead summary is now alive again"))
10192 ;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
10193 (defun gnus-summary-fetch-faq (&optional faq-dir)
10194 "Fetch the FAQ for the current group.
10195 If FAQ-DIR (the prefix), prompt for a directory to search for the faq
10196 in."
10197 (interactive
10198 (list
10199 (if current-prefix-arg
10200 (completing-read
10201 "Faq dir: " (and (listp gnus-group-faq-directory)
10202 gnus-group-faq-directory)))))
10203 (let (gnus-faq-buffer)
10204 (and (setq gnus-faq-buffer
10205 (gnus-group-fetch-faq gnus-newsgroup-name faq-dir))
10206 (gnus-configure-windows 'summary-faq))))
10208 ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
10209 (defun gnus-summary-describe-group (&optional force)
10210 "Describe the current newsgroup."
10211 (interactive "P")
10212 (gnus-group-describe-group force gnus-newsgroup-name))
10214 (defun gnus-summary-describe-briefly ()
10215 "Describe summary mode commands briefly."
10216 (interactive)
10217 (gnus-message 6
10218 (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")))
10220 ;; Walking around group mode buffer from summary mode.
10222 (defun gnus-summary-next-group (&optional no-article target-group backward)
10223 "Exit current newsgroup and then select next unread newsgroup.
10224 If prefix argument NO-ARTICLE is non-nil, no article is selected
10225 initially. If NEXT-GROUP, go to this group. If BACKWARD, go to
10226 previous group instead."
10227 (interactive "P")
10228 (gnus-set-global-variables)
10229 (let ((current-group gnus-newsgroup-name)
10230 (current-buffer (current-buffer))
10231 entered)
10232 ;; First we semi-exit this group to update Xrefs and all variables.
10233 ;; We can't do a real exit, because the window conf must remain
10234 ;; the same in case the user is prompted for info, and we don't
10235 ;; want the window conf to change before that...
10236 (gnus-summary-exit t)
10237 (while (not entered)
10238 ;; Then we find what group we are supposed to enter.
10239 (set-buffer gnus-group-buffer)
10240 (gnus-group-jump-to-group current-group)
10241 (setq target-group
10242 (or target-group
10243 (if (eq gnus-keep-same-level 'best)
10244 (gnus-summary-best-group gnus-newsgroup-name)
10245 (gnus-summary-search-group backward gnus-keep-same-level))))
10246 (if (not target-group)
10247 ;; There are no further groups, so we return to the group
10248 ;; buffer.
10249 (progn
10250 (gnus-message 5 "Returning to the group buffer")
10251 (setq entered t)
10252 (set-buffer current-buffer)
10253 (gnus-summary-exit))
10254 ;; We try to enter the target group.
10255 (gnus-group-jump-to-group target-group)
10256 (let ((unreads (gnus-group-group-unread)))
10257 (if (and (or (eq t unreads)
10258 (and unreads (not (zerop unreads))))
10259 (gnus-summary-read-group
10260 target-group nil no-article current-buffer))
10261 (setq entered t)
10262 (setq current-group target-group
10263 target-group nil)))))))
10265 (defun gnus-summary-prev-group (&optional no-article)
10266 "Exit current newsgroup and then select previous unread newsgroup.
10267 If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
10268 (interactive "P")
10269 (gnus-summary-next-group no-article nil t))
10271 ;; Walking around summary lines.
10273 (defun gnus-summary-first-subject (&optional unread)
10274 "Go to the first unread subject.
10275 If UNREAD is non-nil, go to the first unread article.
10276 Returns the article selected or nil if there are no unread articles."
10277 (interactive "P")
10278 (prog1
10279 (cond
10280 ;; Empty summary.
10281 ((null gnus-newsgroup-data)
10282 (gnus-message 3 "No articles in the group")
10283 nil)
10284 ;; Pick the first article.
10285 ((not unread)
10286 (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
10287 (gnus-data-number (car gnus-newsgroup-data)))
10288 ;; No unread articles.
10289 ((null gnus-newsgroup-unreads)
10290 (gnus-message 3 "No more unread articles")
10291 nil)
10292 ;; Find the first unread article.
10294 (let ((data gnus-newsgroup-data))
10295 (while (and data
10296 (not (gnus-data-unread-p (car data))))
10297 (setq data (cdr data)))
10298 (if data
10299 (progn
10300 (goto-char (gnus-data-pos (car data)))
10301 (gnus-data-number (car data)))))))
10302 (gnus-summary-position-point)))
10304 (defun gnus-summary-next-subject (n &optional unread dont-display)
10305 "Go to next N'th summary line.
10306 If N is negative, go to the previous N'th subject line.
10307 If UNREAD is non-nil, only unread articles are selected.
10308 The difference between N and the actual number of steps taken is
10309 returned."
10310 (interactive "p")
10311 (let ((backward (< n 0))
10312 (n (abs n)))
10313 (while (and (> n 0)
10314 (if backward
10315 (gnus-summary-find-prev unread)
10316 (gnus-summary-find-next unread)))
10317 (setq n (1- n)))
10318 (if (/= 0 n) (gnus-message 7 "No more%s articles"
10319 (if unread " unread" "")))
10320 (unless dont-display
10321 (gnus-summary-recenter)
10322 (gnus-summary-position-point))
10325 (defun gnus-summary-next-unread-subject (n)
10326 "Go to next N'th unread summary line."
10327 (interactive "p")
10328 (gnus-summary-next-subject n t))
10330 (defun gnus-summary-prev-subject (n &optional unread)
10331 "Go to previous N'th summary line.
10332 If optional argument UNREAD is non-nil, only unread article is selected."
10333 (interactive "p")
10334 (gnus-summary-next-subject (- n) unread))
10336 (defun gnus-summary-prev-unread-subject (n)
10337 "Go to previous N'th unread summary line."
10338 (interactive "p")
10339 (gnus-summary-next-subject (- n) t))
10341 (defun gnus-summary-goto-subject (article &optional force silent)
10342 "Go the subject line of ARTICLE.
10343 If FORCE, also allow jumping to articles not currently shown."
10344 (let ((b (point))
10345 (data (gnus-data-find article)))
10346 ;; We read in the article if we have to.
10347 (and (not data)
10348 force
10349 (gnus-summary-insert-subject article (and (vectorp force) force) t)
10350 (setq data (gnus-data-find article)))
10351 (goto-char b)
10352 (if (not data)
10353 (progn
10354 (unless silent
10355 (gnus-message 3 "Can't find article %d" article))
10356 nil)
10357 (goto-char (gnus-data-pos data))
10358 article)))
10360 ;; Walking around summary lines with displaying articles.
10362 (defun gnus-summary-expand-window (&optional arg)
10363 "Make the summary buffer take up the entire Emacs frame.
10364 Given a prefix, will force an `article' buffer configuration."
10365 (interactive "P")
10366 (gnus-set-global-variables)
10367 (if arg
10368 (gnus-configure-windows 'article 'force)
10369 (gnus-configure-windows 'summary 'force)))
10371 (defun gnus-summary-display-article (article &optional all-header)
10372 "Display ARTICLE in article buffer."
10373 (gnus-set-global-variables)
10374 (if (null article)
10376 (prog1
10377 (if gnus-summary-display-article-function
10378 (funcall gnus-summary-display-article-function article all-header)
10379 (gnus-article-prepare article all-header))
10380 (run-hooks 'gnus-select-article-hook)
10381 (unless (zerop gnus-current-article)
10382 (gnus-summary-goto-subject gnus-current-article))
10383 (gnus-summary-recenter)
10384 (when gnus-use-trees
10385 (gnus-possibly-generate-tree article)
10386 (gnus-highlight-selected-tree article))
10387 ;; Successfully display article.
10388 (gnus-article-set-window-start
10389 (cdr (assq article gnus-newsgroup-bookmarks))))))
10391 (defun gnus-summary-select-article (&optional all-headers force pseudo article)
10392 "Select the current article.
10393 If ALL-HEADERS is non-nil, show all header fields. If FORCE is
10394 non-nil, the article will be re-fetched even if it already present in
10395 the article buffer. If PSEUDO is non-nil, pseudo-articles will also
10396 be displayed."
10397 ;; Make sure we are in the summary buffer to work around bbdb bug.
10398 (unless (eq major-mode 'gnus-summary-mode)
10399 (set-buffer gnus-summary-buffer))
10400 (let ((article (or article (gnus-summary-article-number)))
10401 (all-headers (not (not all-headers))) ;Must be T or NIL.
10402 gnus-summary-display-article-function
10403 did)
10404 (and (not pseudo)
10405 (gnus-summary-article-pseudo-p article)
10406 (error "This is a pseudo-article."))
10407 (prog1
10408 (save-excursion
10409 (set-buffer gnus-summary-buffer)
10410 (if (or (and gnus-single-article-buffer
10411 (or (null gnus-current-article)
10412 (null gnus-article-current)
10413 (null (get-buffer gnus-article-buffer))
10414 (not (eq article (cdr gnus-article-current)))
10415 (not (equal (car gnus-article-current)
10416 gnus-newsgroup-name))))
10417 (and (not gnus-single-article-buffer)
10418 (or (null gnus-current-article)
10419 (not (eq gnus-current-article article))))
10420 force)
10421 ;; The requested article is different from the current article.
10422 (prog1
10423 (gnus-summary-display-article article all-headers)
10424 (setq did article))
10425 (if (or all-headers gnus-show-all-headers)
10426 (gnus-article-show-all-headers))
10427 'old))
10428 (if did
10429 (gnus-article-set-window-start
10430 (cdr (assq article gnus-newsgroup-bookmarks)))))))
10432 (defun gnus-summary-set-current-mark (&optional current-mark)
10433 "Obsolete function."
10434 nil)
10436 (defun gnus-summary-next-article (&optional unread subject backward push)
10437 "Select the next article.
10438 If UNREAD, only unread articles are selected.
10439 If SUBJECT, only articles with SUBJECT are selected.
10440 If BACKWARD, the previous article is selected instead of the next."
10441 (interactive "P")
10442 (gnus-set-global-variables)
10443 (cond
10444 ;; Is there such an article?
10445 ((and (gnus-summary-search-forward unread subject backward)
10446 (or (gnus-summary-display-article (gnus-summary-article-number))
10447 (eq (gnus-summary-article-mark) gnus-canceled-mark)))
10448 (gnus-summary-position-point))
10449 ;; If not, we try the first unread, if that is wanted.
10450 ((and subject
10451 gnus-auto-select-same
10452 (gnus-summary-first-unread-article))
10453 (gnus-summary-position-point)
10454 (gnus-message 6 "Wrapped"))
10455 ;; Try to get next/previous article not displayed in this group.
10456 ((and gnus-auto-extend-newsgroup
10457 (not unread) (not subject))
10458 (gnus-summary-goto-article
10459 (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
10460 nil t))
10461 ;; Go to next/previous group.
10463 (or (gnus-ephemeral-group-p gnus-newsgroup-name)
10464 (gnus-summary-jump-to-group gnus-newsgroup-name))
10465 (let ((cmd last-command-char)
10466 (group
10467 (if (eq gnus-keep-same-level 'best)
10468 (gnus-summary-best-group gnus-newsgroup-name)
10469 (gnus-summary-search-group backward gnus-keep-same-level))))
10470 ;; For some reason, the group window gets selected. We change
10471 ;; it back.
10472 (select-window (get-buffer-window (current-buffer)))
10473 ;; Select next unread newsgroup automagically.
10474 (cond
10475 ((or (not gnus-auto-select-next)
10476 (not cmd))
10477 (gnus-message 7 "No more%s articles" (if unread " unread" "")))
10478 ((or (eq gnus-auto-select-next 'quietly)
10479 (and (eq gnus-auto-select-next 'slightly-quietly)
10480 push)
10481 (and (eq gnus-auto-select-next 'almost-quietly)
10482 (gnus-summary-last-article-p)))
10483 ;; Select quietly.
10484 (if (gnus-ephemeral-group-p gnus-newsgroup-name)
10485 (gnus-summary-exit)
10486 (gnus-message 7 "No more%s articles (%s)..."
10487 (if unread " unread" "")
10488 (if group (concat "selecting " group)
10489 "exiting"))
10490 (gnus-summary-next-group nil group backward)))
10492 (gnus-summary-walk-group-buffer
10493 gnus-newsgroup-name cmd unread backward)))))))
10495 (defun gnus-summary-walk-group-buffer (from-group cmd unread backward)
10496 (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
10497 (?\C-p (gnus-group-prev-unread-group 1))))
10498 keve key group ended)
10499 (save-excursion
10500 (set-buffer gnus-group-buffer)
10501 (gnus-summary-jump-to-group from-group)
10502 (setq group
10503 (if (eq gnus-keep-same-level 'best)
10504 (gnus-summary-best-group gnus-newsgroup-name)
10505 (gnus-summary-search-group backward gnus-keep-same-level))))
10506 (while (not ended)
10507 (gnus-message
10508 5 "No more%s articles%s" (if unread " unread" "")
10509 (if (and group
10510 (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
10511 (format " (Type %s for %s [%s])"
10512 (single-key-description cmd) group
10513 (car (gnus-gethash group gnus-newsrc-hashtb)))
10514 (format " (Type %s to exit %s)"
10515 (single-key-description cmd)
10516 gnus-newsgroup-name)))
10517 ;; Confirm auto selection.
10518 (setq key (car (setq keve (gnus-read-event-char))))
10519 (setq ended t)
10520 (cond
10521 ((assq key keystrokes)
10522 (let ((obuf (current-buffer)))
10523 (switch-to-buffer gnus-group-buffer)
10524 (and group
10525 (gnus-group-jump-to-group group))
10526 (eval (cadr (assq key keystrokes)))
10527 (setq group (gnus-group-group-name))
10528 (switch-to-buffer obuf))
10529 (setq ended nil))
10530 ((equal key cmd)
10531 (if (or (not group)
10532 (gnus-ephemeral-group-p gnus-newsgroup-name))
10533 (gnus-summary-exit)
10534 (gnus-summary-next-group nil group backward)))
10536 (push (cdr keve) unread-command-events))))))
10538 (defun gnus-read-event-char ()
10539 "Get the next event."
10540 (let ((event (read-event)))
10541 (cons (and (numberp event) event) event)))
10543 (defun gnus-summary-next-unread-article ()
10544 "Select unread article after current one."
10545 (interactive)
10546 (gnus-summary-next-article t (and gnus-auto-select-same
10547 (gnus-summary-article-subject))))
10549 (defun gnus-summary-prev-article (&optional unread subject)
10550 "Select the article after the current one.
10551 If UNREAD is non-nil, only unread articles are selected."
10552 (interactive "P")
10553 (gnus-summary-next-article unread subject t))
10555 (defun gnus-summary-prev-unread-article ()
10556 "Select unred article before current one."
10557 (interactive)
10558 (gnus-summary-prev-article t (and gnus-auto-select-same
10559 (gnus-summary-article-subject))))
10561 (defun gnus-summary-next-page (&optional lines circular)
10562 "Show next page of the selected article.
10563 If at the end of the current article, select the next article.
10564 LINES says how many lines should be scrolled up.
10566 If CIRCULAR is non-nil, go to the start of the article instead of
10567 selecting the next article when reaching the end of the current
10568 article."
10569 (interactive "P")
10570 (setq gnus-summary-buffer (current-buffer))
10571 (gnus-set-global-variables)
10572 (let ((article (gnus-summary-article-number))
10573 (endp nil))
10574 (gnus-configure-windows 'article)
10575 (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
10576 (if (and (eq gnus-summary-goto-unread 'never)
10577 (not (gnus-summary-last-article-p article)))
10578 (gnus-summary-next-article)
10579 (gnus-summary-next-unread-article))
10580 (if (or (null gnus-current-article)
10581 (null gnus-article-current)
10582 (/= article (cdr gnus-article-current))
10583 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
10584 ;; Selected subject is different from current article's.
10585 (gnus-summary-display-article article)
10586 (gnus-eval-in-buffer-window gnus-article-buffer
10587 (setq endp (gnus-article-next-page lines)))
10588 (if endp
10589 (cond (circular
10590 (gnus-summary-beginning-of-article))
10591 (lines
10592 (gnus-message 3 "End of message"))
10593 ((null lines)
10594 (if (and (eq gnus-summary-goto-unread 'never)
10595 (not (gnus-summary-last-article-p article)))
10596 (gnus-summary-next-article)
10597 (gnus-summary-next-unread-article)))))))
10598 (gnus-summary-recenter)
10599 (gnus-summary-position-point)))
10601 (defun gnus-summary-prev-page (&optional lines)
10602 "Show previous page of selected article.
10603 Argument LINES specifies lines to be scrolled down."
10604 (interactive "P")
10605 (gnus-set-global-variables)
10606 (let ((article (gnus-summary-article-number)))
10607 (gnus-configure-windows 'article)
10608 (if (or (null gnus-current-article)
10609 (null gnus-article-current)
10610 (/= article (cdr gnus-article-current))
10611 (not (equal (car gnus-article-current) gnus-newsgroup-name)))
10612 ;; Selected subject is different from current article's.
10613 (gnus-summary-display-article article)
10614 (gnus-summary-recenter)
10615 (gnus-eval-in-buffer-window gnus-article-buffer
10616 (gnus-article-prev-page lines))))
10617 (gnus-summary-position-point))
10619 (defun gnus-summary-scroll-up (lines)
10620 "Scroll up (or down) one line current article.
10621 Argument LINES specifies lines to be scrolled up (or down if negative)."
10622 (interactive "p")
10623 (gnus-set-global-variables)
10624 (gnus-configure-windows 'article)
10625 (gnus-summary-show-thread)
10626 (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
10627 (gnus-eval-in-buffer-window gnus-article-buffer
10628 (cond ((> lines 0)
10629 (if (gnus-article-next-page lines)
10630 (gnus-message 3 "End of message")))
10631 ((< lines 0)
10632 (gnus-article-prev-page (- lines))))))
10633 (gnus-summary-recenter)
10634 (gnus-summary-position-point))
10636 (defun gnus-summary-next-same-subject ()
10637 "Select next article which has the same subject as current one."
10638 (interactive)
10639 (gnus-set-global-variables)
10640 (gnus-summary-next-article nil (gnus-summary-article-subject)))
10642 (defun gnus-summary-prev-same-subject ()
10643 "Select previous article which has the same subject as current one."
10644 (interactive)
10645 (gnus-set-global-variables)
10646 (gnus-summary-prev-article nil (gnus-summary-article-subject)))
10648 (defun gnus-summary-next-unread-same-subject ()
10649 "Select next unread article which has the same subject as current one."
10650 (interactive)
10651 (gnus-set-global-variables)
10652 (gnus-summary-next-article t (gnus-summary-article-subject)))
10654 (defun gnus-summary-prev-unread-same-subject ()
10655 "Select previous unread article which has the same subject as current one."
10656 (interactive)
10657 (gnus-set-global-variables)
10658 (gnus-summary-prev-article t (gnus-summary-article-subject)))
10660 (defun gnus-summary-first-unread-article ()
10661 "Select the first unread article.
10662 Return nil if there are no unread articles."
10663 (interactive)
10664 (gnus-set-global-variables)
10665 (prog1
10666 (if (gnus-summary-first-subject t)
10667 (progn
10668 (gnus-summary-show-thread)
10669 (gnus-summary-first-subject t)
10670 (gnus-summary-display-article (gnus-summary-article-number))))
10671 (gnus-summary-position-point)))
10673 (defun gnus-summary-best-unread-article ()
10674 "Select the unread article with the highest score."
10675 (interactive)
10676 (gnus-set-global-variables)
10677 (let ((best -1000000)
10678 (data gnus-newsgroup-data)
10679 article score)
10680 (while data
10681 (and (gnus-data-unread-p (car data))
10682 (> (setq score
10683 (gnus-summary-article-score (gnus-data-number (car data))))
10684 best)
10685 (setq best score
10686 article (gnus-data-number (car data))))
10687 (setq data (cdr data)))
10688 (prog1
10689 (if article
10690 (gnus-summary-goto-article article)
10691 (error "No unread articles"))
10692 (gnus-summary-position-point))))
10694 (defun gnus-summary-last-subject ()
10695 "Go to the last displayed subject line in the group."
10696 (let ((article (gnus-data-number (car (gnus-data-list t)))))
10697 (when article
10698 (gnus-summary-goto-subject article))))
10700 (defun gnus-summary-goto-article (article &optional all-headers force)
10701 "Fetch ARTICLE and display it if it exists.
10702 If ALL-HEADERS is non-nil, no header lines are hidden."
10703 (interactive
10704 (list
10705 (string-to-int
10706 (completing-read
10707 "Article number: "
10708 (mapcar (lambda (number) (list (int-to-string number)))
10709 gnus-newsgroup-limit)))
10710 current-prefix-arg
10712 (prog1
10713 (if (gnus-summary-goto-subject article force)
10714 (gnus-summary-display-article article all-headers)
10715 (gnus-message 4 "Couldn't go to article %s" article) nil)
10716 (gnus-summary-position-point)))
10718 (defun gnus-summary-goto-last-article ()
10719 "Go to the previously read article."
10720 (interactive)
10721 (prog1
10722 (and gnus-last-article
10723 (gnus-summary-goto-article gnus-last-article))
10724 (gnus-summary-position-point)))
10726 (defun gnus-summary-pop-article (number)
10727 "Pop one article off the history and go to the previous.
10728 NUMBER articles will be popped off."
10729 (interactive "p")
10730 (let (to)
10731 (setq gnus-newsgroup-history
10732 (cdr (setq to (nthcdr number gnus-newsgroup-history))))
10733 (if to
10734 (gnus-summary-goto-article (car to))
10735 (error "Article history empty")))
10736 (gnus-summary-position-point))
10738 ;; Summary commands and functions for limiting the summary buffer.
10740 (defun gnus-summary-limit-to-articles (n)
10741 "Limit the summary buffer to the next N articles.
10742 If not given a prefix, use the process marked articles instead."
10743 (interactive "P")
10744 (gnus-set-global-variables)
10745 (prog1
10746 (let ((articles (gnus-summary-work-articles n)))
10747 (setq gnus-newsgroup-processable nil)
10748 (gnus-summary-limit articles))
10749 (gnus-summary-position-point)))
10751 (defun gnus-summary-pop-limit (&optional total)
10752 "Restore the previous limit.
10753 If given a prefix, remove all limits."
10754 (interactive "P")
10755 (gnus-set-global-variables)
10756 (when total
10757 (setq gnus-newsgroup-limits
10758 (list (mapcar (lambda (h) (mail-header-number h))
10759 gnus-newsgroup-headers))))
10760 (unless gnus-newsgroup-limits
10761 (error "No limit to pop"))
10762 (prog1
10763 (gnus-summary-limit nil 'pop)
10764 (gnus-summary-position-point)))
10766 (defun gnus-summary-limit-to-subject (subject &optional header)
10767 "Limit the summary buffer to articles that have subjects that match a regexp."
10768 (interactive "sRegexp: ")
10769 (unless header
10770 (setq header "subject"))
10771 (when (not (equal "" subject))
10772 (prog1
10773 (let ((articles (gnus-summary-find-matching
10774 (or header "subject") subject 'all)))
10775 (or articles (error "Found no matches for \"%s\"" subject))
10776 (gnus-summary-limit articles))
10777 (gnus-summary-position-point))))
10779 (defun gnus-summary-limit-to-author (from)
10780 "Limit the summary buffer to articles that have authors that match a regexp."
10781 (interactive "sRegexp: ")
10782 (gnus-summary-limit-to-subject from "from"))
10784 (defalias 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
10785 (make-obsolete
10786 'gnus-summary-delete-marked-as-read 'gnus-summary-limit-to-unread)
10788 (defun gnus-summary-limit-to-unread (&optional all)
10789 "Limit the summary buffer to articles that are not marked as read.
10790 If ALL is non-nil, limit strictly to unread articles."
10791 (interactive "P")
10792 (if all
10793 (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
10794 (gnus-summary-limit-to-marks
10795 ;; Concat all the marks that say that an article is read and have
10796 ;; those removed.
10797 (list gnus-del-mark gnus-read-mark gnus-ancient-mark
10798 gnus-killed-mark gnus-kill-file-mark
10799 gnus-low-score-mark gnus-expirable-mark
10800 gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark)
10801 'reverse)))
10803 (defalias 'gnus-summary-delete-marked-with 'gnus-summary-limit-to-marks)
10804 (make-obsolete 'gnus-summary-delete-marked-with 'gnus-summary-limit-to-marks)
10806 (defun gnus-summary-limit-to-marks (marks &optional reverse)
10807 "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
10808 If REVERSE, limit the summary buffer to articles that are not marked
10809 with MARKS. MARKS can either be a string of marks or a list of marks.
10810 Returns how many articles were removed."
10811 (interactive "sMarks: ")
10812 (gnus-set-global-variables)
10813 (prog1
10814 (let ((data gnus-newsgroup-data)
10815 (marks (if (listp marks) marks
10816 (append marks nil))) ; Transform to list.
10817 articles)
10818 (while data
10819 (and (if reverse (not (memq (gnus-data-mark (car data)) marks))
10820 (memq (gnus-data-mark (car data)) marks))
10821 (setq articles (cons (gnus-data-number (car data)) articles)))
10822 (setq data (cdr data)))
10823 (gnus-summary-limit articles))
10824 (gnus-summary-position-point)))
10826 (defun gnus-summary-limit-to-score (&optional score)
10827 "Limit to articles with score at or above SCORE."
10828 (interactive "P")
10829 (gnus-set-global-variables)
10830 (setq score (if score
10831 (prefix-numeric-value score)
10832 (or gnus-summary-default-score 0)))
10833 (let ((data gnus-newsgroup-data)
10834 articles)
10835 (while data
10836 (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
10837 score)
10838 (push (gnus-data-number (car data)) articles))
10839 (setq data (cdr data)))
10840 (prog1
10841 (gnus-summary-limit articles)
10842 (gnus-summary-position-point))))
10844 (defun gnus-summary-limit-include-dormant ()
10845 "Display all the hidden articles that are marked as dormant."
10846 (interactive)
10847 (gnus-set-global-variables)
10848 (or gnus-newsgroup-dormant
10849 (error "There are no dormant articles in this group"))
10850 (prog1
10851 (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
10852 (gnus-summary-position-point)))
10854 (defun gnus-summary-limit-exclude-dormant ()
10855 "Hide all dormant articles."
10856 (interactive)
10857 (gnus-set-global-variables)
10858 (prog1
10859 (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
10860 (gnus-summary-position-point)))
10862 (defun gnus-summary-limit-exclude-childless-dormant ()
10863 "Hide all dormant articles that have no children."
10864 (interactive)
10865 (gnus-set-global-variables)
10866 (let ((data (gnus-data-list t))
10867 articles d children)
10868 ;; Find all articles that are either not dormant or have
10869 ;; children.
10870 (while (setq d (pop data))
10871 (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
10872 (and (setq children
10873 (gnus-article-children (gnus-data-number d)))
10874 (let (found)
10875 (while children
10876 (when (memq (car children) articles)
10877 (setq children nil
10878 found t))
10879 (pop children))
10880 found)))
10881 (push (gnus-data-number d) articles)))
10882 ;; Do the limiting.
10883 (prog1
10884 (gnus-summary-limit articles)
10885 (gnus-summary-position-point))))
10887 (defun gnus-summary-limit-mark-excluded-as-read (&optional all)
10888 "Mark all unread excluded articles as read.
10889 If ALL, mark even excluded ticked and dormants as read."
10890 (interactive "P")
10891 (let ((articles (gnus-sorted-complement
10892 (sort
10893 (mapcar (lambda (h) (mail-header-number h))
10894 gnus-newsgroup-headers)
10896 (sort gnus-newsgroup-limit '<)))
10897 article)
10898 (setq gnus-newsgroup-unreads nil)
10899 (if all
10900 (setq gnus-newsgroup-dormant nil
10901 gnus-newsgroup-marked nil
10902 gnus-newsgroup-reads
10903 (nconc
10904 (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
10905 gnus-newsgroup-reads))
10906 (while (setq article (pop articles))
10907 (unless (or (memq article gnus-newsgroup-dormant)
10908 (memq article gnus-newsgroup-marked))
10909 (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
10911 (defun gnus-summary-limit (articles &optional pop)
10912 (if pop
10913 ;; We pop the previous limit off the stack and use that.
10914 (setq articles (car gnus-newsgroup-limits)
10915 gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
10916 ;; We use the new limit, so we push the old limit on the stack.
10917 (setq gnus-newsgroup-limits
10918 (cons gnus-newsgroup-limit gnus-newsgroup-limits)))
10919 ;; Set the limit.
10920 (setq gnus-newsgroup-limit articles)
10921 (let ((total (length gnus-newsgroup-data))
10922 (data (gnus-data-find-list (gnus-summary-article-number)))
10923 (gnus-summary-mark-below nil) ; Inhibit this.
10924 found)
10925 ;; This will do all the work of generating the new summary buffer
10926 ;; according to the new limit.
10927 (gnus-summary-prepare)
10928 ;; Hide any threads, possibly.
10929 (and gnus-show-threads
10930 gnus-thread-hide-subtree
10931 (gnus-summary-hide-all-threads))
10932 ;; Try to return to the article you were at, or one in the
10933 ;; neighborhood.
10934 (if data
10935 ;; We try to find some article after the current one.
10936 (while data
10937 (and (gnus-summary-goto-subject
10938 (gnus-data-number (car data)) nil t)
10939 (setq data nil
10940 found t))
10941 (setq data (cdr data))))
10942 (or found
10943 ;; If there is no data, that means that we were after the last
10944 ;; article. The same goes when we can't find any articles
10945 ;; after the current one.
10946 (progn
10947 (goto-char (point-max))
10948 (gnus-summary-find-prev)))
10949 ;; We return how many articles were removed from the summary
10950 ;; buffer as a result of the new limit.
10951 (- total (length gnus-newsgroup-data))))
10953 (defsubst gnus-invisible-cut-children (threads)
10954 (let ((num 0))
10955 (while threads
10956 (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
10957 (incf num))
10958 (pop threads))
10959 (< num 2)))
10961 (defsubst gnus-cut-thread (thread)
10962 "Go forwards in the thread until we find an article that we want to display."
10963 (when (or (eq gnus-fetch-old-headers 'some)
10964 (eq gnus-build-sparse-threads 'some)
10965 (eq gnus-build-sparse-threads 'more))
10966 ;; Deal with old-fetched headers and sparse threads.
10967 (while (and
10968 thread
10970 (memq (mail-header-number (car thread)) gnus-newsgroup-sparse)
10971 (memq (mail-header-number (car thread)) gnus-newsgroup-ancient))
10972 (or (<= (length (cdr thread)) 1)
10973 (gnus-invisible-cut-children (cdr thread))))
10974 (setq thread (cadr thread))))
10975 thread)
10977 (defun gnus-cut-threads (threads)
10978 "Cut off all uninteresting articles from the beginning of threads."
10979 (when (or (eq gnus-fetch-old-headers 'some)
10980 (eq gnus-build-sparse-threads 'some)
10981 (eq gnus-build-sparse-threads 'more))
10982 (let ((th threads))
10983 (while th
10984 (setcar th (gnus-cut-thread (car th)))
10985 (setq th (cdr th)))))
10986 ;; Remove nixed out threads.
10987 (delq nil threads))
10989 (defun gnus-summary-initial-limit (&optional show-if-empty)
10990 "Figure out what the initial limit is supposed to be on group entry.
10991 This entails weeding out unwanted dormants, low-scored articles,
10992 fetch-old-headers verbiage, and so on."
10993 ;; Most groups have nothing to remove.
10994 (if (or gnus-inhibit-limiting
10995 (and (null gnus-newsgroup-dormant)
10996 (not (eq gnus-fetch-old-headers 'some))
10997 (null gnus-summary-expunge-below)
10998 (not (eq gnus-build-sparse-threads 'some))
10999 (not (eq gnus-build-sparse-threads 'more))
11000 (null gnus-thread-expunge-below)
11001 (not gnus-use-nocem)))
11002 () ; Do nothing.
11003 (push gnus-newsgroup-limit gnus-newsgroup-limits)
11004 (setq gnus-newsgroup-limit nil)
11005 (mapatoms
11006 (lambda (node)
11007 (unless (car (symbol-value node))
11008 ;; These threads have no parents -- they are roots.
11009 (let ((nodes (cdr (symbol-value node)))
11010 thread)
11011 (while nodes
11012 (if (and gnus-thread-expunge-below
11013 (< (gnus-thread-total-score (car nodes))
11014 gnus-thread-expunge-below))
11015 (gnus-expunge-thread (pop nodes))
11016 (setq thread (pop nodes))
11017 (gnus-summary-limit-children thread))))))
11018 gnus-newsgroup-dependencies)
11019 ;; If this limitation resulted in an empty group, we might
11020 ;; pop the previous limit and use it instead.
11021 (when (and (not gnus-newsgroup-limit)
11022 show-if-empty)
11023 (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
11024 gnus-newsgroup-limit))
11026 (defun gnus-summary-limit-children (thread)
11027 "Return 1 if this subthread is visible and 0 if it is not."
11028 ;; First we get the number of visible children to this thread. This
11029 ;; is done by recursing down the thread using this function, so this
11030 ;; will really go down to a leaf article first, before slowly
11031 ;; working its way up towards the root.
11032 (when thread
11033 (let ((children
11034 (if (cdr thread)
11035 (apply '+ (mapcar 'gnus-summary-limit-children
11036 (cdr thread)))
11038 (number (mail-header-number (car thread)))
11039 score)
11040 (if (or
11041 ;; If this article is dormant and has absolutely no visible
11042 ;; children, then this article isn't visible.
11043 (and (memq number gnus-newsgroup-dormant)
11044 (= children 0))
11045 ;; If this is "fetch-old-headered" and there is only one
11046 ;; visible child (or less), then we don't want this article.
11047 (and (eq gnus-fetch-old-headers 'some)
11048 (memq number gnus-newsgroup-ancient)
11049 (zerop children))
11050 ;; If this is a sparsely inserted article with no children,
11051 ;; we don't want it.
11052 (and (eq gnus-build-sparse-threads 'some)
11053 (memq number gnus-newsgroup-sparse)
11054 (zerop children))
11055 ;; If we use expunging, and this article is really
11056 ;; low-scored, then we don't want this article.
11057 (when (and gnus-summary-expunge-below
11058 (< (setq score
11059 (or (cdr (assq number gnus-newsgroup-scored))
11060 gnus-summary-default-score))
11061 gnus-summary-expunge-below))
11062 ;; We increase the expunge-tally here, but that has
11063 ;; nothing to do with the limits, really.
11064 (incf gnus-newsgroup-expunged-tally)
11065 ;; We also mark as read here, if that's wanted.
11066 (when (and gnus-summary-mark-below
11067 (< score gnus-summary-mark-below))
11068 (setq gnus-newsgroup-unreads
11069 (delq number gnus-newsgroup-unreads))
11070 (if gnus-newsgroup-auto-expire
11071 (push number gnus-newsgroup-expirable)
11072 (push (cons number gnus-low-score-mark)
11073 gnus-newsgroup-reads)))
11075 (and gnus-use-nocem
11076 (gnus-nocem-unwanted-article-p (mail-header-id (car thread)))))
11077 ;; Nope, invisible article.
11079 ;; Ok, this article is to be visible, so we add it to the limit
11080 ;; and return 1.
11081 (setq gnus-newsgroup-limit (cons number gnus-newsgroup-limit))
11082 1))))
11084 (defun gnus-expunge-thread (thread)
11085 "Mark all articles in THREAD as read."
11086 (let* ((number (mail-header-number (car thread))))
11087 (incf gnus-newsgroup-expunged-tally)
11088 ;; We also mark as read here, if that's wanted.
11089 (setq gnus-newsgroup-unreads
11090 (delq number gnus-newsgroup-unreads))
11091 (if gnus-newsgroup-auto-expire
11092 (push number gnus-newsgroup-expirable)
11093 (push (cons number gnus-low-score-mark)
11094 gnus-newsgroup-reads)))
11095 ;; Go recursively through all subthreads.
11096 (mapcar 'gnus-expunge-thread (cdr thread)))
11098 ;; Summary article oriented commands
11100 (defun gnus-summary-refer-parent-article (n)
11101 "Refer parent article N times.
11102 The difference between N and the number of articles fetched is returned."
11103 (interactive "p")
11104 (gnus-set-global-variables)
11105 (while
11106 (and
11107 (> n 0)
11108 (let* ((header (gnus-summary-article-header))
11109 (ref
11110 ;; If we try to find the parent of the currently
11111 ;; displayed article, then we take a look at the actual
11112 ;; References header, since this is slightly more
11113 ;; reliable than the References field we got from the
11114 ;; server.
11115 (if (and (eq (mail-header-number header)
11116 (cdr gnus-article-current))
11117 (equal gnus-newsgroup-name
11118 (car gnus-article-current)))
11119 (save-excursion
11120 (set-buffer gnus-original-article-buffer)
11121 (nnheader-narrow-to-headers)
11122 (prog1
11123 (message-fetch-field "references")
11124 (widen)))
11125 ;; It's not the current article, so we take a bet on
11126 ;; the value we got from the server.
11127 (mail-header-references header))))
11128 (if (setq ref (or ref (mail-header-references header)))
11129 (or (gnus-summary-refer-article (gnus-parent-id ref))
11130 (gnus-message 1 "Couldn't find parent"))
11131 (gnus-message 1 "No references in article %d"
11132 (gnus-summary-article-number))
11133 nil)))
11134 (setq n (1- n)))
11135 (gnus-summary-position-point)
11138 (defun gnus-summary-refer-references ()
11139 "Fetch all articles mentioned in the References header.
11140 Return how many articles were fetched."
11141 (interactive)
11142 (gnus-set-global-variables)
11143 (let ((ref (mail-header-references (gnus-summary-article-header)))
11144 (current (gnus-summary-article-number))
11145 (n 0))
11146 ;; For each Message-ID in the References header...
11147 (while (string-match "<[^>]*>" ref)
11148 (incf n)
11149 ;; ... fetch that article.
11150 (gnus-summary-refer-article
11151 (prog1 (match-string 0 ref)
11152 (setq ref (substring ref (match-end 0))))))
11153 (gnus-summary-goto-subject current)
11154 (gnus-summary-position-point)
11157 (defun gnus-summary-refer-article (message-id)
11158 "Fetch an article specified by MESSAGE-ID."
11159 (interactive "sMessage-ID: ")
11160 (when (and (stringp message-id)
11161 (not (zerop (length message-id))))
11162 ;; Construct the correct Message-ID if necessary.
11163 ;; Suggested by tale@pawl.rpi.edu.
11164 (unless (string-match "^<" message-id)
11165 (setq message-id (concat "<" message-id)))
11166 (unless (string-match ">$" message-id)
11167 (setq message-id (concat message-id ">")))
11168 (let* ((header (gnus-id-to-header message-id))
11169 (sparse (and header
11170 (memq (mail-header-number header)
11171 gnus-newsgroup-sparse))))
11172 (if header
11173 (prog1
11174 ;; The article is present in the buffer, to we just go to it.
11175 (gnus-summary-goto-article
11176 (mail-header-number header) nil header)
11177 (when sparse
11178 (gnus-summary-update-article (mail-header-number header))))
11179 ;; We fetch the article
11180 (let ((gnus-override-method
11181 (and (gnus-news-group-p gnus-newsgroup-name)
11182 gnus-refer-article-method))
11183 number)
11184 ;; Start the special refer-article method, if necessary.
11185 (when (and gnus-refer-article-method
11186 (gnus-news-group-p gnus-newsgroup-name))
11187 (gnus-check-server gnus-refer-article-method))
11188 ;; Fetch the header, and display the article.
11189 (if (setq number (gnus-summary-insert-subject message-id))
11190 (gnus-summary-select-article nil nil nil number)
11191 (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
11193 (defun gnus-summary-enter-digest-group (&optional force)
11194 "Enter a digest group based on the current article."
11195 (interactive "P")
11196 (gnus-set-global-variables)
11197 (gnus-summary-select-article)
11198 (let ((name (format "%s-%d"
11199 (gnus-group-prefixed-name
11200 gnus-newsgroup-name (list 'nndoc ""))
11201 gnus-current-article))
11202 (ogroup gnus-newsgroup-name)
11203 (case-fold-search t)
11204 (buf (current-buffer))
11205 dig)
11206 (save-excursion
11207 (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
11208 (insert-buffer-substring gnus-original-article-buffer)
11209 (narrow-to-region
11210 (goto-char (point-min))
11211 (or (search-forward "\n\n" nil t) (point)))
11212 (goto-char (point-min))
11213 (delete-matching-lines "^\\(Path\\):\\|^From ")
11214 (widen))
11215 (unwind-protect
11216 (if (gnus-group-read-ephemeral-group
11217 name `(nndoc ,name (nndoc-address
11218 ,(get-buffer dig))
11219 (nndoc-article-type ,(if force 'digest 'guess))) t)
11220 ;; Make all postings to this group go to the parent group.
11221 (nconc (gnus-info-params (gnus-get-info name))
11222 (list (cons 'to-group ogroup)))
11223 ;; Couldn't select this doc group.
11224 (switch-to-buffer buf)
11225 (gnus-set-global-variables)
11226 (gnus-configure-windows 'summary)
11227 (gnus-message 3 "Article couldn't be entered?"))
11228 (kill-buffer dig))))
11230 (defun gnus-summary-isearch-article (&optional regexp-p)
11231 "Do incremental search forward on the current article.
11232 If REGEXP-P (the prefix) is non-nil, do regexp isearch."
11233 (interactive "P")
11234 (gnus-set-global-variables)
11235 (gnus-summary-select-article)
11236 (gnus-configure-windows 'article)
11237 (gnus-eval-in-buffer-window gnus-article-buffer
11238 (goto-char (point-min))
11239 (isearch-forward regexp-p)))
11241 (defun gnus-summary-search-article-forward (regexp &optional backward)
11242 "Search for an article containing REGEXP forward.
11243 If BACKWARD, search backward instead."
11244 (interactive
11245 (list (read-string
11246 (format "Search article %s (regexp%s): "
11247 (if current-prefix-arg "backward" "forward")
11248 (if gnus-last-search-regexp
11249 (concat ", default " gnus-last-search-regexp)
11250 "")))
11251 current-prefix-arg))
11252 (gnus-set-global-variables)
11253 (if (string-equal regexp "")
11254 (setq regexp (or gnus-last-search-regexp ""))
11255 (setq gnus-last-search-regexp regexp))
11256 (unless (gnus-summary-search-article regexp backward)
11257 (error "Search failed: \"%s\"" regexp)))
11259 (defun gnus-summary-search-article-backward (regexp)
11260 "Search for an article containing REGEXP backward."
11261 (interactive
11262 (list (read-string
11263 (format "Search article backward (regexp%s): "
11264 (if gnus-last-search-regexp
11265 (concat ", default " gnus-last-search-regexp)
11266 "")))))
11267 (gnus-summary-search-article-forward regexp 'backward))
11269 (defun gnus-summary-search-article (regexp &optional backward)
11270 "Search for an article containing REGEXP.
11271 Optional argument BACKWARD means do search for backward.
11272 `gnus-select-article-hook' is not called during the search."
11273 (let ((gnus-select-article-hook nil) ;Disable hook.
11274 (gnus-article-display-hook nil)
11275 (gnus-mark-article-hook nil) ;Inhibit marking as read.
11276 (re-search
11277 (if backward
11278 're-search-backward 're-search-forward))
11279 (sum (current-buffer))
11280 (found nil))
11281 (gnus-save-hidden-threads
11282 (gnus-summary-select-article)
11283 (set-buffer gnus-article-buffer)
11284 (when backward
11285 (forward-line -1))
11286 (while (not found)
11287 (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
11288 (if (if backward
11289 (re-search-backward regexp nil t)
11290 (re-search-forward regexp nil t))
11291 ;; We found the regexp.
11292 (progn
11293 (setq found 'found)
11294 (beginning-of-line)
11295 (set-window-start
11296 (get-buffer-window (current-buffer))
11297 (point))
11298 (forward-line 1)
11299 (set-buffer sum))
11300 ;; We didn't find it, so we go to the next article.
11301 (set-buffer sum)
11302 (if (not (if backward (gnus-summary-find-prev)
11303 (gnus-summary-find-next)))
11304 ;; No more articles.
11305 (setq found t)
11306 ;; Select the next article and adjust point.
11307 (gnus-summary-select-article)
11308 (set-buffer gnus-article-buffer)
11309 (widen)
11310 (goto-char (if backward (point-max) (point-min))))))
11311 (gnus-message 7 ""))
11312 ;; Return whether we found the regexp.
11313 (when (eq found 'found)
11314 (gnus-summary-show-thread)
11315 (gnus-summary-goto-subject gnus-current-article)
11316 (gnus-summary-position-point)
11317 t)))
11319 (defun gnus-summary-find-matching (header regexp &optional backward unread
11320 not-case-fold)
11321 "Return a list of all articles that match REGEXP on HEADER.
11322 The search stars on the current article and goes forwards unless
11323 BACKWARD is non-nil. If BACKWARD is `all', do all articles.
11324 If UNREAD is non-nil, only unread articles will
11325 be taken into consideration. If NOT-CASE-FOLD, case won't be folded
11326 in the comparisons."
11327 (let ((data (if (eq backward 'all) gnus-newsgroup-data
11328 (gnus-data-find-list
11329 (gnus-summary-article-number) (gnus-data-list backward))))
11330 (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
11331 (case-fold-search (not not-case-fold))
11332 articles d)
11333 (or (fboundp (intern (concat "mail-header-" header)))
11334 (error "%s is not a valid header" header))
11335 (while data
11336 (setq d (car data))
11337 (and (or (not unread) ; We want all articles...
11338 (gnus-data-unread-p d)) ; Or just unreads.
11339 (vectorp (gnus-data-header d)) ; It's not a pseudo.
11340 (string-match regexp (funcall func (gnus-data-header d))) ; Match.
11341 (setq articles (cons (gnus-data-number d) articles))) ; Success!
11342 (setq data (cdr data)))
11343 (nreverse articles)))
11345 (defun gnus-summary-execute-command (header regexp command &optional backward)
11346 "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
11347 If HEADER is an empty string (or nil), the match is done on the entire
11348 article. If BACKWARD (the prefix) is non-nil, search backward instead."
11349 (interactive
11350 (list (let ((completion-ignore-case t))
11351 (completing-read
11352 "Header name: "
11353 (mapcar (lambda (string) (list string))
11354 '("Number" "Subject" "From" "Lines" "Date"
11355 "Message-ID" "Xref" "References" "Body"))
11356 nil 'require-match))
11357 (read-string "Regexp: ")
11358 (read-key-sequence "Command: ")
11359 current-prefix-arg))
11360 (when (equal header "Body")
11361 (setq header ""))
11362 (gnus-set-global-variables)
11363 ;; Hidden thread subtrees must be searched as well.
11364 (gnus-summary-show-all-threads)
11365 ;; We don't want to change current point nor window configuration.
11366 (save-excursion
11367 (save-window-excursion
11368 (gnus-message 6 "Executing %s..." (key-description command))
11369 ;; We'd like to execute COMMAND interactively so as to give arguments.
11370 (gnus-execute header regexp
11371 `(lambda () (call-interactively ',(key-binding command)))
11372 backward)
11373 (gnus-message 6 "Executing %s...done" (key-description command)))))
11375 (defun gnus-summary-beginning-of-article ()
11376 "Scroll the article back to the beginning."
11377 (interactive)
11378 (gnus-set-global-variables)
11379 (gnus-summary-select-article)
11380 (gnus-configure-windows 'article)
11381 (gnus-eval-in-buffer-window gnus-article-buffer
11382 (widen)
11383 (goto-char (point-min))
11384 (and gnus-break-pages (gnus-narrow-to-page))))
11386 (defun gnus-summary-end-of-article ()
11387 "Scroll to the end of the article."
11388 (interactive)
11389 (gnus-set-global-variables)
11390 (gnus-summary-select-article)
11391 (gnus-configure-windows 'article)
11392 (gnus-eval-in-buffer-window gnus-article-buffer
11393 (widen)
11394 (goto-char (point-max))
11395 (recenter -3)
11396 (and gnus-break-pages (gnus-narrow-to-page))))
11398 (defun gnus-summary-show-article (&optional arg)
11399 "Force re-fetching of the current article.
11400 If ARG (the prefix) is non-nil, show the raw article without any
11401 article massaging functions being run."
11402 (interactive "P")
11403 (gnus-set-global-variables)
11404 (if (not arg)
11405 ;; Select the article the normal way.
11406 (gnus-summary-select-article nil 'force)
11407 ;; Bind the article treatment functions to nil.
11408 (let ((gnus-have-all-headers t)
11409 gnus-article-display-hook
11410 gnus-article-prepare-hook
11411 gnus-break-pages
11412 gnus-visual)
11413 (gnus-summary-select-article nil 'force)))
11414 (gnus-summary-goto-subject gnus-current-article)
11415 ; (gnus-configure-windows 'article)
11416 (gnus-summary-position-point))
11418 (defun gnus-summary-verbose-headers (&optional arg)
11419 "Toggle permanent full header display.
11420 If ARG is a positive number, turn header display on.
11421 If ARG is a negative number, turn header display off."
11422 (interactive "P")
11423 (gnus-set-global-variables)
11424 (gnus-summary-toggle-header arg)
11425 (setq gnus-show-all-headers
11426 (cond ((or (not (numberp arg))
11427 (zerop arg))
11428 (not gnus-show-all-headers))
11429 ((natnump arg)
11430 t))))
11432 (defun gnus-summary-toggle-header (&optional arg)
11433 "Show the headers if they are hidden, or hide them if they are shown.
11434 If ARG is a positive number, show the entire header.
11435 If ARG is a negative number, hide the unwanted header lines."
11436 (interactive "P")
11437 (gnus-set-global-variables)
11438 (save-excursion
11439 (set-buffer gnus-article-buffer)
11440 (let* ((buffer-read-only nil)
11441 (inhibit-point-motion-hooks t)
11442 (hidden (text-property-any
11443 (goto-char (point-min)) (search-forward "\n\n")
11444 'invisible t))
11446 (goto-char (point-min))
11447 (when (search-forward "\n\n" nil t)
11448 (delete-region (point-min) (1- (point))))
11449 (goto-char (point-min))
11450 (save-excursion
11451 (set-buffer gnus-original-article-buffer)
11452 (goto-char (point-min))
11453 (setq e (1- (or (search-forward "\n\n" nil t) (point-max)))))
11454 (insert-buffer-substring gnus-original-article-buffer 1 e)
11455 (let ((gnus-inhibit-hiding t))
11456 (run-hooks 'gnus-article-display-hook))
11457 (if (or (not hidden) (and (numberp arg) (< arg 0)))
11458 (gnus-article-hide-headers)))))
11460 (defun gnus-summary-show-all-headers ()
11461 "Make all header lines visible."
11462 (interactive)
11463 (gnus-set-global-variables)
11464 (gnus-article-show-all-headers))
11466 (defun gnus-summary-toggle-mime (&optional arg)
11467 "Toggle MIME processing.
11468 If ARG is a positive number, turn MIME processing on."
11469 (interactive "P")
11470 (gnus-set-global-variables)
11471 (setq gnus-show-mime
11472 (if (null arg) (not gnus-show-mime)
11473 (> (prefix-numeric-value arg) 0)))
11474 (gnus-summary-select-article t 'force))
11476 (defun gnus-summary-caesar-message (&optional arg)
11477 "Caesar rotate the current article by 13.
11478 The numerical prefix specifies how manu places to rotate each letter
11479 forward."
11480 (interactive "P")
11481 (gnus-set-global-variables)
11482 (gnus-summary-select-article)
11483 (let ((mail-header-separator ""))
11484 (gnus-eval-in-buffer-window gnus-article-buffer
11485 (save-restriction
11486 (widen)
11487 (let ((start (window-start))
11488 buffer-read-only)
11489 (message-caesar-buffer-body arg)
11490 (set-window-start (get-buffer-window (current-buffer)) start))))))
11492 (defun gnus-summary-stop-page-breaking ()
11493 "Stop page breaking in the current article."
11494 (interactive)
11495 (gnus-set-global-variables)
11496 (gnus-summary-select-article)
11497 (gnus-eval-in-buffer-window gnus-article-buffer
11498 (widen)))
11500 (defun gnus-summary-move-article (&optional n to-newsgroup select-method action)
11501 "Move the current article to a different newsgroup.
11502 If N is a positive number, move the N next articles.
11503 If N is a negative number, move the N previous articles.
11504 If N is nil and any articles have been marked with the process mark,
11505 move those articles instead.
11506 If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
11507 If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
11508 re-spool using this method.
11510 For this function to work, both the current newsgroup and the
11511 newsgroup that you want to move to have to support the `request-move'
11512 and `request-accept' functions."
11513 (interactive "P")
11514 (unless action (setq action 'move))
11515 (gnus-set-global-variables)
11516 ;; Check whether the source group supports the required functions.
11517 (cond ((and (eq action 'move)
11518 (not (gnus-check-backend-function
11519 'request-move-article gnus-newsgroup-name)))
11520 (error "The current group does not support article moving"))
11521 ((and (eq action 'crosspost)
11522 (not (gnus-check-backend-function
11523 'request-replace-article gnus-newsgroup-name)))
11524 (error "The current group does not support article editing")))
11525 (let ((articles (gnus-summary-work-articles n))
11526 (prefix (gnus-group-real-prefix gnus-newsgroup-name))
11527 (names '((move "Move" "Moving")
11528 (copy "Copy" "Copying")
11529 (crosspost "Crosspost" "Crossposting")))
11530 (copy-buf (save-excursion
11531 (nnheader-set-temp-buffer " *copy article*")))
11532 art-group to-method new-xref article to-groups)
11533 (unless (assq action names)
11534 (error "Unknown action %s" action))
11535 ;; Read the newsgroup name.
11536 (when (and (not to-newsgroup)
11537 (not select-method))
11538 (setq to-newsgroup
11539 (gnus-read-move-group-name
11540 (cadr (assq action names))
11541 (symbol-value (intern (format "gnus-current-%s-group" action)))
11542 articles prefix))
11543 (set (intern (format "gnus-current-%s-group" action)) to-newsgroup))
11544 (setq to-method (or select-method
11545 (gnus-group-name-to-method to-newsgroup)))
11546 ;; Check the method we are to move this article to...
11547 (or (gnus-check-backend-function 'request-accept-article (car to-method))
11548 (error "%s does not support article copying" (car to-method)))
11549 (or (gnus-check-server to-method)
11550 (error "Can't open server %s" (car to-method)))
11551 (gnus-message 6 "%s to %s: %s..."
11552 (caddr (assq action names))
11553 (or (car select-method) to-newsgroup) articles)
11554 (while articles
11555 (setq article (pop articles))
11556 (setq
11557 art-group
11558 (cond
11559 ;; Move the article.
11560 ((eq action 'move)
11561 (gnus-request-move-article
11562 article ; Article to move
11563 gnus-newsgroup-name ; From newsgrouo
11564 (nth 1 (gnus-find-method-for-group
11565 gnus-newsgroup-name)) ; Server
11566 (list 'gnus-request-accept-article
11567 to-newsgroup (list 'quote select-method)
11568 (not articles)) ; Accept form
11569 (not articles))) ; Only save nov last time
11570 ;; Copy the article.
11571 ((eq action 'copy)
11572 (save-excursion
11573 (set-buffer copy-buf)
11574 (gnus-request-article-this-buffer article gnus-newsgroup-name)
11575 (gnus-request-accept-article
11576 to-newsgroup select-method (not articles))))
11577 ;; Crosspost the article.
11578 ((eq action 'crosspost)
11579 (let ((xref (mail-header-xref (gnus-summary-article-header article))))
11580 (setq new-xref (concat gnus-newsgroup-name ":" article))
11581 (if (and xref (not (string= xref "")))
11582 (progn
11583 (when (string-match "^Xref: " xref)
11584 (setq xref (substring xref (match-end 0))))
11585 (setq new-xref (concat xref " " new-xref)))
11586 (setq new-xref (concat (system-name) " " new-xref)))
11587 (save-excursion
11588 (set-buffer copy-buf)
11589 (gnus-request-article-this-buffer article gnus-newsgroup-name)
11590 (nnheader-replace-header "xref" new-xref)
11591 (gnus-request-accept-article
11592 to-newsgroup select-method (not articles)))))))
11593 (if (not art-group)
11594 (gnus-message 1 "Couldn't %s article %s"
11595 (cadr (assq action names)) article)
11596 (let* ((entry
11598 (gnus-gethash (car art-group) gnus-newsrc-hashtb)
11599 (gnus-gethash
11600 (gnus-group-prefixed-name
11601 (car art-group)
11602 (or select-method
11603 (gnus-find-method-for-group to-newsgroup)))
11604 gnus-newsrc-hashtb)))
11605 (info (nth 2 entry))
11606 (to-group (gnus-info-group info)))
11607 ;; Update the group that has been moved to.
11608 (when (and info
11609 (memq action '(move copy)))
11610 (unless (member to-group to-groups)
11611 (push to-group to-groups))
11613 (unless (memq article gnus-newsgroup-unreads)
11614 (gnus-info-set-read
11615 info (gnus-add-to-range (gnus-info-read info)
11616 (list (cdr art-group)))))
11618 ;; Copy any marks over to the new group.
11619 (let ((marks gnus-article-mark-lists)
11620 (to-article (cdr art-group)))
11622 ;; See whether the article is to be put in the cache.
11623 (when gnus-use-cache
11624 (gnus-cache-possibly-enter-article
11625 to-group to-article
11626 (let ((header (copy-sequence
11627 (gnus-summary-article-header article))))
11628 (mail-header-set-number header to-article)
11629 header)
11630 (memq article gnus-newsgroup-marked)
11631 (memq article gnus-newsgroup-dormant)
11632 (memq article gnus-newsgroup-unreads)))
11634 (while marks
11635 (when (memq article (symbol-value
11636 (intern (format "gnus-newsgroup-%s"
11637 (caar marks)))))
11638 ;; If the other group is the same as this group,
11639 ;; then we have to add the mark to the list.
11640 (when (equal to-group gnus-newsgroup-name)
11641 (set (intern (format "gnus-newsgroup-%s" (caar marks)))
11642 (cons to-article
11643 (symbol-value
11644 (intern (format "gnus-newsgroup-%s"
11645 (caar marks)))))))
11646 ;; Copy mark to other group.
11647 (gnus-add-marked-articles
11648 to-group (cdar marks) (list to-article) info))
11649 (setq marks (cdr marks)))))
11651 ;; Update the Xref header in this article to point to
11652 ;; the new crossposted article we have just created.
11653 (when (eq action 'crosspost)
11654 (save-excursion
11655 (set-buffer copy-buf)
11656 (gnus-request-article-this-buffer article gnus-newsgroup-name)
11657 (nnheader-replace-header
11658 "xref" (concat new-xref " " (gnus-group-prefixed-name
11659 (car art-group) to-method)
11660 ":" (cdr art-group)))
11661 (gnus-request-replace-article
11662 article gnus-newsgroup-name (current-buffer)))))
11664 (gnus-summary-goto-subject article)
11665 (when (eq action 'move)
11666 (gnus-summary-mark-article article gnus-canceled-mark)))
11667 (gnus-summary-remove-process-mark article))
11668 ;; Re-activate all groups that have been moved to.
11669 (while to-groups
11670 (gnus-activate-group (pop to-groups)))
11672 (gnus-kill-buffer copy-buf)
11673 (gnus-summary-position-point)
11674 (gnus-set-mode-line 'summary)))
11676 (defun gnus-summary-copy-article (&optional n to-newsgroup select-method)
11677 "Move the current article to a different newsgroup.
11678 If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
11679 If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
11680 re-spool using this method."
11681 (interactive "P")
11682 (gnus-summary-move-article n nil select-method 'copy))
11684 (defun gnus-summary-crosspost-article (&optional n)
11685 "Crosspost the current article to some other group."
11686 (interactive "P")
11687 (gnus-summary-move-article n nil nil 'crosspost))
11689 (defvar gnus-summary-respool-default-method nil
11690 "Default method for respooling an article.
11691 If nil, use to the current newsgroup method.")
11693 (defun gnus-summary-respool-article (&optional n method)
11694 "Respool the current article.
11695 The article will be squeezed through the mail spooling process again,
11696 which means that it will be put in some mail newsgroup or other
11697 depending on `nnmail-split-methods'.
11698 If N is a positive number, respool the N next articles.
11699 If N is a negative number, respool the N previous articles.
11700 If N is nil and any articles have been marked with the process mark,
11701 respool those articles instead.
11703 Respooling can be done both from mail groups and \"real\" newsgroups.
11704 In the former case, the articles in question will be moved from the
11705 current group into whatever groups they are destined to. In the
11706 latter case, they will be copied into the relevant groups."
11707 (interactive
11708 (list current-prefix-arg
11709 (let* ((methods (gnus-methods-using 'respool))
11710 (methname
11711 (symbol-name (or gnus-summary-respool-default-method
11712 (car (gnus-find-method-for-group
11713 gnus-newsgroup-name)))))
11714 (method
11715 (gnus-completing-read
11716 methname "What backend do you want to use when respooling?"
11717 methods nil t nil 'gnus-method-history))
11719 (cond
11720 ((zerop (length (setq ms (gnus-servers-using-backend method))))
11721 (list (intern method) ""))
11722 ((= 1 (length ms))
11723 (car ms))
11725 (cdr (completing-read
11726 "Server name: "
11727 (mapcar (lambda (m) (cons (cadr m) m)) ms) nil t)))))))
11728 (gnus-set-global-variables)
11729 (unless method
11730 (error "No method given for respooling"))
11731 (if (assoc (symbol-name
11732 (car (gnus-find-method-for-group gnus-newsgroup-name)))
11733 (gnus-methods-using 'respool))
11734 (gnus-summary-move-article n nil method)
11735 (gnus-summary-copy-article n nil method)))
11737 (defun gnus-summary-import-article (file)
11738 "Import a random file into a mail newsgroup."
11739 (interactive "fImport file: ")
11740 (gnus-set-global-variables)
11741 (let ((group gnus-newsgroup-name)
11742 (now (current-time))
11743 atts lines)
11744 (or (gnus-check-backend-function 'request-accept-article group)
11745 (error "%s does not support article importing" group))
11746 (or (file-readable-p file)
11747 (not (file-regular-p file))
11748 (error "Can't read %s" file))
11749 (save-excursion
11750 (set-buffer (get-buffer-create " *import file*"))
11751 (buffer-disable-undo (current-buffer))
11752 (erase-buffer)
11753 (insert-file-contents file)
11754 (goto-char (point-min))
11755 (unless (nnheader-article-p)
11756 ;; This doesn't look like an article, so we fudge some headers.
11757 (setq atts (file-attributes file)
11758 lines (count-lines (point-min) (point-max)))
11759 (insert "From: " (read-string "From: ") "\n"
11760 "Subject: " (read-string "Subject: ") "\n"
11761 "Date: " (timezone-make-date-arpa-standard
11762 (current-time-string (nth 5 atts))
11763 (current-time-zone now)
11764 (current-time-zone now)) "\n"
11765 "Message-ID: " (message-make-message-id) "\n"
11766 "Lines: " (int-to-string lines) "\n"
11767 "Chars: " (int-to-string (nth 7 atts)) "\n\n"))
11768 (gnus-request-accept-article group nil t)
11769 (kill-buffer (current-buffer)))))
11771 (defun gnus-summary-expire-articles (&optional now)
11772 "Expire all articles that are marked as expirable in the current group."
11773 (interactive)
11774 (gnus-set-global-variables)
11775 (when (gnus-check-backend-function
11776 'request-expire-articles gnus-newsgroup-name)
11777 ;; This backend supports expiry.
11778 (let* ((total (gnus-group-total-expirable-p gnus-newsgroup-name))
11779 (expirable (if total
11780 (gnus-list-of-read-articles gnus-newsgroup-name)
11781 (setq gnus-newsgroup-expirable
11782 (sort gnus-newsgroup-expirable '<))))
11783 (expiry-wait (if now 'immediate
11784 (gnus-group-get-parameter
11785 gnus-newsgroup-name 'expiry-wait)))
11787 (when expirable
11788 ;; There are expirable articles in this group, so we run them
11789 ;; through the expiry process.
11790 (gnus-message 6 "Expiring articles...")
11791 ;; The list of articles that weren't expired is returned.
11792 (if expiry-wait
11793 (let ((nnmail-expiry-wait-function nil)
11794 (nnmail-expiry-wait expiry-wait))
11795 (setq es (gnus-request-expire-articles
11796 expirable gnus-newsgroup-name)))
11797 (setq es (gnus-request-expire-articles
11798 expirable gnus-newsgroup-name)))
11799 (or total (setq gnus-newsgroup-expirable es))
11800 ;; We go through the old list of expirable, and mark all
11801 ;; really expired articles as nonexistent.
11802 (unless (eq es expirable) ;If nothing was expired, we don't mark.
11803 (let ((gnus-use-cache nil))
11804 (while expirable
11805 (unless (memq (car expirable) es)
11806 (when (gnus-data-find (car expirable))
11807 (gnus-summary-mark-article
11808 (car expirable) gnus-canceled-mark)))
11809 (setq expirable (cdr expirable)))))
11810 (gnus-message 6 "Expiring articles...done")))))
11812 (defun gnus-summary-expire-articles-now ()
11813 "Expunge all expirable articles in the current group.
11814 This means that *all* articles that are marked as expirable will be
11815 deleted forever, right now."
11816 (interactive)
11817 (gnus-set-global-variables)
11818 (or gnus-expert-user
11819 (gnus-y-or-n-p
11820 "Are you really, really, really sure you want to delete all these messages? ")
11821 (error "Phew!"))
11822 (gnus-summary-expire-articles t))
11824 ;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
11825 (defun gnus-summary-delete-article (&optional n)
11826 "Delete the N next (mail) articles.
11827 This command actually deletes articles. This is not a marking
11828 command. The article will disappear forever from your life, never to
11829 return.
11830 If N is negative, delete backwards.
11831 If N is nil and articles have been marked with the process mark,
11832 delete these instead."
11833 (interactive "P")
11834 (gnus-set-global-variables)
11835 (or (gnus-check-backend-function 'request-expire-articles
11836 gnus-newsgroup-name)
11837 (error "The current newsgroup does not support article deletion."))
11838 ;; Compute the list of articles to delete.
11839 (let ((articles (gnus-summary-work-articles n))
11840 not-deleted)
11841 (if (and gnus-novice-user
11842 (not (gnus-y-or-n-p
11843 (format "Do you really want to delete %s forever? "
11844 (if (> (length articles) 1)
11845 (format "these %s articles" (length articles))
11846 "this article")))))
11848 ;; Delete the articles.
11849 (setq not-deleted (gnus-request-expire-articles
11850 articles gnus-newsgroup-name 'force))
11851 (while articles
11852 (gnus-summary-remove-process-mark (car articles))
11853 ;; The backend might not have been able to delete the article
11854 ;; after all.
11855 (or (memq (car articles) not-deleted)
11856 (gnus-summary-mark-article (car articles) gnus-canceled-mark))
11857 (setq articles (cdr articles))))
11858 (gnus-summary-position-point)
11859 (gnus-set-mode-line 'summary)
11860 not-deleted))
11862 (defun gnus-summary-edit-article (&optional force)
11863 "Enter into a buffer and edit the current article.
11864 This will have permanent effect only in mail groups.
11865 If FORCE is non-nil, allow editing of articles even in read-only
11866 groups."
11867 (interactive "P")
11868 (save-excursion
11869 (set-buffer gnus-summary-buffer)
11870 (gnus-set-global-variables)
11871 (when (and (not force)
11872 (gnus-group-read-only-p))
11873 (error "The current newsgroup does not support article editing."))
11874 (gnus-summary-select-article t nil t)
11875 (gnus-configure-windows 'article)
11876 (select-window (get-buffer-window gnus-article-buffer))
11877 (gnus-message 6 "C-c C-c to end edits")
11878 (setq buffer-read-only nil)
11879 (text-mode)
11880 (use-local-map (copy-keymap (current-local-map)))
11881 (local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
11882 (buffer-enable-undo)
11883 (widen)
11884 (goto-char (point-min))
11885 (search-forward "\n\n" nil t)))
11887 (defun gnus-summary-edit-article-done ()
11888 "Make edits to the current article permanent."
11889 (interactive)
11890 (if (gnus-group-read-only-p)
11891 (progn
11892 (let ((beep (not (eq major-mode 'text-mode))))
11893 (gnus-summary-edit-article-postpone)
11894 (when beep
11895 (gnus-error
11896 3 "The current newsgroup does not support article editing."))))
11897 (let ((buf (format "%s" (buffer-string))))
11898 (erase-buffer)
11899 (insert buf)
11900 (if (not (gnus-request-replace-article
11901 (cdr gnus-article-current) (car gnus-article-current)
11902 (current-buffer)))
11903 (error "Couldn't replace article.")
11904 (gnus-article-mode)
11905 (use-local-map gnus-article-mode-map)
11906 (setq buffer-read-only t)
11907 (buffer-disable-undo (current-buffer))
11908 (gnus-configure-windows 'summary)
11909 (gnus-summary-update-article (cdr gnus-article-current))
11910 (when gnus-use-cache
11911 (gnus-cache-update-article
11912 (car gnus-article-current) (cdr gnus-article-current)))
11913 (when gnus-keep-backlog
11914 (gnus-backlog-remove-article
11915 (car gnus-article-current) (cdr gnus-article-current))))
11916 (save-excursion
11917 (when (get-buffer gnus-original-article-buffer)
11918 (set-buffer gnus-original-article-buffer)
11919 (setq gnus-original-article nil)))
11920 (setq gnus-article-current nil
11921 gnus-current-article nil)
11922 (run-hooks 'gnus-article-display-hook)
11923 (and (gnus-visual-p 'summary-highlight 'highlight)
11924 (run-hooks 'gnus-visual-mark-article-hook)))))
11926 (defun gnus-summary-edit-article-postpone ()
11927 "Postpone changes to the current article."
11928 (interactive)
11929 (gnus-article-mode)
11930 (use-local-map gnus-article-mode-map)
11931 (setq buffer-read-only t)
11932 (buffer-disable-undo (current-buffer))
11933 (gnus-configure-windows 'summary)
11934 (and (gnus-visual-p 'summary-highlight 'highlight)
11935 (run-hooks 'gnus-visual-mark-article-hook)))
11937 (defun gnus-summary-respool-query ()
11938 "Query where the respool algorithm would put this article."
11939 (interactive)
11940 (gnus-set-global-variables)
11941 (gnus-summary-select-article)
11942 (save-excursion
11943 (set-buffer gnus-article-buffer)
11944 (save-restriction
11945 (goto-char (point-min))
11946 (search-forward "\n\n")
11947 (narrow-to-region (point-min) (point))
11948 (pp-eval-expression
11949 (list 'quote (mapcar 'car (nnmail-article-group 'identity)))))))
11951 ;; Summary marking commands.
11953 (defun gnus-summary-kill-same-subject-and-select (&optional unmark)
11954 "Mark articles which has the same subject as read, and then select the next.
11955 If UNMARK is positive, remove any kind of mark.
11956 If UNMARK is negative, tick articles."
11957 (interactive "P")
11958 (gnus-set-global-variables)
11959 (if unmark
11960 (setq unmark (prefix-numeric-value unmark)))
11961 (let ((count
11962 (gnus-summary-mark-same-subject
11963 (gnus-summary-article-subject) unmark)))
11964 ;; Select next unread article. If auto-select-same mode, should
11965 ;; select the first unread article.
11966 (gnus-summary-next-article t (and gnus-auto-select-same
11967 (gnus-summary-article-subject)))
11968 (gnus-message 7 "%d article%s marked as %s"
11969 count (if (= count 1) " is" "s are")
11970 (if unmark "unread" "read"))))
11972 (defun gnus-summary-kill-same-subject (&optional unmark)
11973 "Mark articles which has the same subject as read.
11974 If UNMARK is positive, remove any kind of mark.
11975 If UNMARK is negative, tick articles."
11976 (interactive "P")
11977 (gnus-set-global-variables)
11978 (if unmark
11979 (setq unmark (prefix-numeric-value unmark)))
11980 (let ((count
11981 (gnus-summary-mark-same-subject
11982 (gnus-summary-article-subject) unmark)))
11983 ;; If marked as read, go to next unread subject.
11984 (if (null unmark)
11985 ;; Go to next unread subject.
11986 (gnus-summary-next-subject 1 t))
11987 (gnus-message 7 "%d articles are marked as %s"
11988 count (if unmark "unread" "read"))))
11990 (defun gnus-summary-mark-same-subject (subject &optional unmark)
11991 "Mark articles with same SUBJECT as read, and return marked number.
11992 If optional argument UNMARK is positive, remove any kinds of marks.
11993 If optional argument UNMARK is negative, mark articles as unread instead."
11994 (let ((count 1))
11995 (save-excursion
11996 (cond
11997 ((null unmark) ; Mark as read.
11998 (while (and
11999 (progn
12000 (gnus-summary-mark-article-as-read gnus-killed-mark)
12001 (gnus-summary-show-thread) t)
12002 (gnus-summary-find-subject subject))
12003 (setq count (1+ count))))
12004 ((> unmark 0) ; Tick.
12005 (while (and
12006 (progn
12007 (gnus-summary-mark-article-as-unread gnus-ticked-mark)
12008 (gnus-summary-show-thread) t)
12009 (gnus-summary-find-subject subject))
12010 (setq count (1+ count))))
12011 (t ; Mark as unread.
12012 (while (and
12013 (progn
12014 (gnus-summary-mark-article-as-unread gnus-unread-mark)
12015 (gnus-summary-show-thread) t)
12016 (gnus-summary-find-subject subject))
12017 (setq count (1+ count)))))
12018 (gnus-set-mode-line 'summary)
12019 ;; Return the number of marked articles.
12020 count)))
12022 (defun gnus-summary-mark-as-processable (n &optional unmark)
12023 "Set the process mark on the next N articles.
12024 If N is negative, mark backward instead. If UNMARK is non-nil, remove
12025 the process mark instead. The difference between N and the actual
12026 number of articles marked is returned."
12027 (interactive "p")
12028 (gnus-set-global-variables)
12029 (let ((backward (< n 0))
12030 (n (abs n)))
12031 (while (and
12032 (> n 0)
12033 (if unmark
12034 (gnus-summary-remove-process-mark
12035 (gnus-summary-article-number))
12036 (gnus-summary-set-process-mark (gnus-summary-article-number)))
12037 (zerop (gnus-summary-next-subject (if backward -1 1) nil t)))
12038 (setq n (1- n)))
12039 (if (/= 0 n) (gnus-message 7 "No more articles"))
12040 (gnus-summary-recenter)
12041 (gnus-summary-position-point)
12044 (defun gnus-summary-unmark-as-processable (n)
12045 "Remove the process mark from the next N articles.
12046 If N is negative, mark backward instead. The difference between N and
12047 the actual number of articles marked is returned."
12048 (interactive "p")
12049 (gnus-set-global-variables)
12050 (gnus-summary-mark-as-processable n t))
12052 (defun gnus-summary-unmark-all-processable ()
12053 "Remove the process mark from all articles."
12054 (interactive)
12055 (gnus-set-global-variables)
12056 (save-excursion
12057 (while gnus-newsgroup-processable
12058 (gnus-summary-remove-process-mark (car gnus-newsgroup-processable))))
12059 (gnus-summary-position-point))
12061 (defun gnus-summary-mark-as-expirable (n)
12062 "Mark N articles forward as expirable.
12063 If N is negative, mark backward instead. The difference between N and
12064 the actual number of articles marked is returned."
12065 (interactive "p")
12066 (gnus-set-global-variables)
12067 (gnus-summary-mark-forward n gnus-expirable-mark))
12069 (defun gnus-summary-mark-article-as-replied (article)
12070 "Mark ARTICLE replied and update the summary line."
12071 (setq gnus-newsgroup-replied (cons article gnus-newsgroup-replied))
12072 (let ((buffer-read-only nil))
12073 (when (gnus-summary-goto-subject article)
12074 (gnus-summary-update-secondary-mark article))))
12076 (defun gnus-summary-set-bookmark (article)
12077 "Set a bookmark in current article."
12078 (interactive (list (gnus-summary-article-number)))
12079 (gnus-set-global-variables)
12080 (if (or (not (get-buffer gnus-article-buffer))
12081 (not gnus-current-article)
12082 (not gnus-article-current)
12083 (not (equal gnus-newsgroup-name (car gnus-article-current))))
12084 (error "No current article selected"))
12085 ;; Remove old bookmark, if one exists.
12086 (let ((old (assq article gnus-newsgroup-bookmarks)))
12087 (if old (setq gnus-newsgroup-bookmarks
12088 (delq old gnus-newsgroup-bookmarks))))
12089 ;; Set the new bookmark, which is on the form
12090 ;; (article-number . line-number-in-body).
12091 (setq gnus-newsgroup-bookmarks
12092 (cons
12093 (cons article
12094 (save-excursion
12095 (set-buffer gnus-article-buffer)
12096 (count-lines
12097 (min (point)
12098 (save-excursion
12099 (goto-char (point-min))
12100 (search-forward "\n\n" nil t)
12101 (point)))
12102 (point))))
12103 gnus-newsgroup-bookmarks))
12104 (gnus-message 6 "A bookmark has been added to the current article."))
12106 (defun gnus-summary-remove-bookmark (article)
12107 "Remove the bookmark from the current article."
12108 (interactive (list (gnus-summary-article-number)))
12109 (gnus-set-global-variables)
12110 ;; Remove old bookmark, if one exists.
12111 (let ((old (assq article gnus-newsgroup-bookmarks)))
12112 (if old
12113 (progn
12114 (setq gnus-newsgroup-bookmarks
12115 (delq old gnus-newsgroup-bookmarks))
12116 (gnus-message 6 "Removed bookmark."))
12117 (gnus-message 6 "No bookmark in current article."))))
12119 ;; Suggested by Daniel Quinlan <quinlan@best.com>.
12120 (defun gnus-summary-mark-as-dormant (n)
12121 "Mark N articles forward as dormant.
12122 If N is negative, mark backward instead. The difference between N and
12123 the actual number of articles marked is returned."
12124 (interactive "p")
12125 (gnus-set-global-variables)
12126 (gnus-summary-mark-forward n gnus-dormant-mark))
12128 (defun gnus-summary-set-process-mark (article)
12129 "Set the process mark on ARTICLE and update the summary line."
12130 (setq gnus-newsgroup-processable
12131 (cons article
12132 (delq article gnus-newsgroup-processable)))
12133 (when (gnus-summary-goto-subject article)
12134 (gnus-summary-show-thread)
12135 (gnus-summary-update-secondary-mark article)))
12137 (defun gnus-summary-remove-process-mark (article)
12138 "Remove the process mark from ARTICLE and update the summary line."
12139 (setq gnus-newsgroup-processable (delq article gnus-newsgroup-processable))
12140 (when (gnus-summary-goto-subject article)
12141 (gnus-summary-show-thread)
12142 (gnus-summary-update-secondary-mark article)))
12144 (defun gnus-summary-set-saved-mark (article)
12145 "Set the process mark on ARTICLE and update the summary line."
12146 (push article gnus-newsgroup-saved)
12147 (when (gnus-summary-goto-subject article)
12148 (gnus-summary-update-secondary-mark article)))
12150 (defun gnus-summary-mark-forward (n &optional mark no-expire)
12151 "Mark N articles as read forwards.
12152 If N is negative, mark backwards instead. Mark with MARK, ?r by default.
12153 The difference between N and the actual number of articles marked is
12154 returned."
12155 (interactive "p")
12156 (gnus-set-global-variables)
12157 (let ((backward (< n 0))
12158 (gnus-summary-goto-unread
12159 (and gnus-summary-goto-unread
12160 (not (eq gnus-summary-goto-unread 'never))
12161 (not (memq mark (list gnus-unread-mark
12162 gnus-ticked-mark gnus-dormant-mark)))))
12163 (n (abs n))
12164 (mark (or mark gnus-del-mark)))
12165 (while (and (> n 0)
12166 (gnus-summary-mark-article nil mark no-expire)
12167 (zerop (gnus-summary-next-subject
12168 (if backward -1 1)
12169 (and gnus-summary-goto-unread
12170 (not (eq gnus-summary-goto-unread 'never)))
12171 t)))
12172 (setq n (1- n)))
12173 (if (/= 0 n) (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
12174 (gnus-summary-recenter)
12175 (gnus-summary-position-point)
12176 (gnus-set-mode-line 'summary)
12179 (defun gnus-summary-mark-article-as-read (mark)
12180 "Mark the current article quickly as read with MARK."
12181 (let ((article (gnus-summary-article-number)))
12182 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
12183 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
12184 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
12185 (setq gnus-newsgroup-reads
12186 (cons (cons article mark) gnus-newsgroup-reads))
12187 ;; Possibly remove from cache, if that is used.
12188 (and gnus-use-cache (gnus-cache-enter-remove-article article))
12189 ;; Allow the backend to change the mark.
12190 (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
12191 ;; Check for auto-expiry.
12192 (when (and gnus-newsgroup-auto-expire
12193 (or (= mark gnus-killed-mark) (= mark gnus-del-mark)
12194 (= mark gnus-catchup-mark) (= mark gnus-low-score-mark)
12195 (= mark gnus-ancient-mark)
12196 (= mark gnus-read-mark) (= mark gnus-souped-mark)))
12197 (setq mark gnus-expirable-mark)
12198 (push article gnus-newsgroup-expirable))
12199 ;; Set the mark in the buffer.
12200 (gnus-summary-update-mark mark 'unread)
12203 (defun gnus-summary-mark-article-as-unread (mark)
12204 "Mark the current article quickly as unread with MARK."
12205 (let ((article (gnus-summary-article-number)))
12206 (if (< article 0)
12207 (gnus-error 1 "Unmarkable article")
12208 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
12209 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
12210 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
12211 (setq gnus-newsgroup-reads (delq article gnus-newsgroup-reads))
12212 (cond ((= mark gnus-ticked-mark)
12213 (push article gnus-newsgroup-marked))
12214 ((= mark gnus-dormant-mark)
12215 (push article gnus-newsgroup-dormant))
12217 (push article gnus-newsgroup-unreads)))
12218 (setq gnus-newsgroup-reads
12219 (delq (assq article gnus-newsgroup-reads)
12220 gnus-newsgroup-reads))
12222 ;; See whether the article is to be put in the cache.
12223 (and gnus-use-cache
12224 (vectorp (gnus-summary-article-header article))
12225 (save-excursion
12226 (gnus-cache-possibly-enter-article
12227 gnus-newsgroup-name article
12228 (gnus-summary-article-header article)
12229 (= mark gnus-ticked-mark)
12230 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
12232 ;; Fix the mark.
12233 (gnus-summary-update-mark mark 'unread))
12236 (defun gnus-summary-mark-article (&optional article mark no-expire)
12237 "Mark ARTICLE with MARK. MARK can be any character.
12238 Four MARK strings are reserved: `? ' (unread), `?!' (ticked),
12239 `??' (dormant) and `?E' (expirable).
12240 If MARK is nil, then the default character `?D' is used.
12241 If ARTICLE is nil, then the article on the current line will be
12242 marked."
12243 ;; The mark might be a string.
12244 (and (stringp mark)
12245 (setq mark (aref mark 0)))
12246 ;; If no mark is given, then we check auto-expiring.
12247 (and (not no-expire)
12248 gnus-newsgroup-auto-expire
12249 (or (not mark)
12250 (and (numberp mark)
12251 (or (= mark gnus-killed-mark) (= mark gnus-del-mark)
12252 (= mark gnus-catchup-mark) (= mark gnus-low-score-mark)
12253 (= mark gnus-read-mark) (= mark gnus-souped-mark))))
12254 (setq mark gnus-expirable-mark))
12255 (let* ((mark (or mark gnus-del-mark))
12256 (article (or article (gnus-summary-article-number))))
12257 (or article (error "No article on current line"))
12258 (if (or (= mark gnus-unread-mark)
12259 (= mark gnus-ticked-mark)
12260 (= mark gnus-dormant-mark))
12261 (gnus-mark-article-as-unread article mark)
12262 (gnus-mark-article-as-read article mark))
12264 ;; See whether the article is to be put in the cache.
12265 (and gnus-use-cache
12266 (not (= mark gnus-canceled-mark))
12267 (vectorp (gnus-summary-article-header article))
12268 (save-excursion
12269 (gnus-cache-possibly-enter-article
12270 gnus-newsgroup-name article
12271 (gnus-summary-article-header article)
12272 (= mark gnus-ticked-mark)
12273 (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
12275 (if (gnus-summary-goto-subject article nil t)
12276 (let ((buffer-read-only nil))
12277 (gnus-summary-show-thread)
12278 ;; Fix the mark.
12279 (gnus-summary-update-mark mark 'unread)
12280 t))))
12282 (defun gnus-summary-update-secondary-mark (article)
12283 "Update the secondary (read, process, cache) mark."
12284 (gnus-summary-update-mark
12285 (cond ((memq article gnus-newsgroup-processable)
12286 gnus-process-mark)
12287 ((memq article gnus-newsgroup-cached)
12288 gnus-cached-mark)
12289 ((memq article gnus-newsgroup-replied)
12290 gnus-replied-mark)
12291 ((memq article gnus-newsgroup-saved)
12292 gnus-saved-mark)
12293 (t gnus-unread-mark))
12294 'replied)
12295 (when (gnus-visual-p 'summary-highlight 'highlight)
12296 (run-hooks 'gnus-summary-update-hook))
12299 (defun gnus-summary-update-mark (mark type)
12300 (beginning-of-line)
12301 (let ((forward (cdr (assq type gnus-summary-mark-positions)))
12302 (buffer-read-only nil))
12303 (when (and forward
12304 (<= (+ forward (point)) (point-max)))
12305 ;; Go to the right position on the line.
12306 (goto-char (+ forward (point)))
12307 ;; Replace the old mark with the new mark.
12308 (subst-char-in-region (point) (1+ (point)) (following-char) mark)
12309 ;; Optionally update the marks by some user rule.
12310 (when (eq type 'unread)
12311 (gnus-data-set-mark
12312 (gnus-data-find (gnus-summary-article-number)) mark)
12313 (gnus-summary-update-line (eq mark gnus-unread-mark))))))
12315 (defun gnus-mark-article-as-read (article &optional mark)
12316 "Enter ARTICLE in the pertinent lists and remove it from others."
12317 ;; Make the article expirable.
12318 (let ((mark (or mark gnus-del-mark)))
12319 (if (= mark gnus-expirable-mark)
12320 (setq gnus-newsgroup-expirable (cons article gnus-newsgroup-expirable))
12321 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)))
12322 ;; Remove from unread and marked lists.
12323 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
12324 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
12325 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
12326 (push (cons article mark) gnus-newsgroup-reads)
12327 ;; Possibly remove from cache, if that is used.
12328 (when gnus-use-cache
12329 (gnus-cache-enter-remove-article article))))
12331 (defun gnus-mark-article-as-unread (article &optional mark)
12332 "Enter ARTICLE in the pertinent lists and remove it from others."
12333 (let ((mark (or mark gnus-ticked-mark)))
12334 (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
12335 (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
12336 (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
12337 (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
12338 (cond ((= mark gnus-ticked-mark)
12339 (push article gnus-newsgroup-marked))
12340 ((= mark gnus-dormant-mark)
12341 (push article gnus-newsgroup-dormant))
12343 (push article gnus-newsgroup-unreads)))
12344 (setq gnus-newsgroup-reads
12345 (delq (assq article gnus-newsgroup-reads)
12346 gnus-newsgroup-reads))))
12348 (defalias 'gnus-summary-mark-as-unread-forward
12349 'gnus-summary-tick-article-forward)
12350 (make-obsolete 'gnus-summary-mark-as-unread-forward
12351 'gnus-summary-tick-article-forward)
12352 (defun gnus-summary-tick-article-forward (n)
12353 "Tick N articles forwards.
12354 If N is negative, tick backwards instead.
12355 The difference between N and the number of articles ticked is returned."
12356 (interactive "p")
12357 (gnus-summary-mark-forward n gnus-ticked-mark))
12359 (defalias 'gnus-summary-mark-as-unread-backward
12360 'gnus-summary-tick-article-backward)
12361 (make-obsolete 'gnus-summary-mark-as-unread-backward
12362 'gnus-summary-tick-article-backward)
12363 (defun gnus-summary-tick-article-backward (n)
12364 "Tick N articles backwards.
12365 The difference between N and the number of articles ticked is returned."
12366 (interactive "p")
12367 (gnus-summary-mark-forward (- n) gnus-ticked-mark))
12369 (defalias 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
12370 (make-obsolete 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
12371 (defun gnus-summary-tick-article (&optional article clear-mark)
12372 "Mark current article as unread.
12373 Optional 1st argument ARTICLE specifies article number to be marked as unread.
12374 Optional 2nd argument CLEAR-MARK remove any kinds of mark."
12375 (interactive)
12376 (gnus-summary-mark-article article (if clear-mark gnus-unread-mark
12377 gnus-ticked-mark)))
12379 (defun gnus-summary-mark-as-read-forward (n)
12380 "Mark N articles as read forwards.
12381 If N is negative, mark backwards instead.
12382 The difference between N and the actual number of articles marked is
12383 returned."
12384 (interactive "p")
12385 (gnus-summary-mark-forward n gnus-del-mark t))
12387 (defun gnus-summary-mark-as-read-backward (n)
12388 "Mark the N articles as read backwards.
12389 The difference between N and the actual number of articles marked is
12390 returned."
12391 (interactive "p")
12392 (gnus-summary-mark-forward (- n) gnus-del-mark t))
12394 (defun gnus-summary-mark-as-read (&optional article mark)
12395 "Mark current article as read.
12396 ARTICLE specifies the article to be marked as read.
12397 MARK specifies a string to be inserted at the beginning of the line."
12398 (gnus-summary-mark-article article mark))
12400 (defun gnus-summary-clear-mark-forward (n)
12401 "Clear marks from N articles forward.
12402 If N is negative, clear backward instead.
12403 The difference between N and the number of marks cleared is returned."
12404 (interactive "p")
12405 (gnus-summary-mark-forward n gnus-unread-mark))
12407 (defun gnus-summary-clear-mark-backward (n)
12408 "Clear marks from N articles backward.
12409 The difference between N and the number of marks cleared is returned."
12410 (interactive "p")
12411 (gnus-summary-mark-forward (- n) gnus-unread-mark))
12413 (defun gnus-summary-mark-unread-as-read ()
12414 "Intended to be used by `gnus-summary-mark-article-hook'."
12415 (when (memq gnus-current-article gnus-newsgroup-unreads)
12416 (gnus-summary-mark-article gnus-current-article gnus-read-mark)))
12418 (defun gnus-summary-mark-read-and-unread-as-read ()
12419 "Intended to be used by `gnus-summary-mark-article-hook'."
12420 (let ((mark (gnus-summary-article-mark)))
12421 (when (or (gnus-unread-mark-p mark)
12422 (gnus-read-mark-p mark))
12423 (gnus-summary-mark-article gnus-current-article gnus-read-mark))))
12425 (defun gnus-summary-mark-region-as-read (point mark all)
12426 "Mark all unread articles between point and mark as read.
12427 If given a prefix, mark all articles between point and mark as read,
12428 even ticked and dormant ones."
12429 (interactive "r\nP")
12430 (save-excursion
12431 (let (article)
12432 (goto-char point)
12433 (beginning-of-line)
12434 (while (and
12435 (< (point) mark)
12436 (progn
12437 (when (or all
12438 (memq (setq article (gnus-summary-article-number))
12439 gnus-newsgroup-unreads))
12440 (gnus-summary-mark-article article gnus-del-mark))
12442 (gnus-summary-find-next))))))
12444 (defun gnus-summary-mark-below (score mark)
12445 "Mark articles with score less than SCORE with MARK."
12446 (interactive "P\ncMark: ")
12447 (gnus-set-global-variables)
12448 (setq score (if score
12449 (prefix-numeric-value score)
12450 (or gnus-summary-default-score 0)))
12451 (save-excursion
12452 (set-buffer gnus-summary-buffer)
12453 (goto-char (point-min))
12454 (while
12455 (progn
12456 (and (< (gnus-summary-article-score) score)
12457 (gnus-summary-mark-article nil mark))
12458 (gnus-summary-find-next)))))
12460 (defun gnus-summary-kill-below (&optional score)
12461 "Mark articles with score below SCORE as read."
12462 (interactive "P")
12463 (gnus-set-global-variables)
12464 (gnus-summary-mark-below score gnus-killed-mark))
12466 (defun gnus-summary-clear-above (&optional score)
12467 "Clear all marks from articles with score above SCORE."
12468 (interactive "P")
12469 (gnus-set-global-variables)
12470 (gnus-summary-mark-above score gnus-unread-mark))
12472 (defun gnus-summary-tick-above (&optional score)
12473 "Tick all articles with score above SCORE."
12474 (interactive "P")
12475 (gnus-set-global-variables)
12476 (gnus-summary-mark-above score gnus-ticked-mark))
12478 (defun gnus-summary-mark-above (score mark)
12479 "Mark articles with score over SCORE with MARK."
12480 (interactive "P\ncMark: ")
12481 (gnus-set-global-variables)
12482 (setq score (if score
12483 (prefix-numeric-value score)
12484 (or gnus-summary-default-score 0)))
12485 (save-excursion
12486 (set-buffer gnus-summary-buffer)
12487 (goto-char (point-min))
12488 (while (and (progn
12489 (if (> (gnus-summary-article-score) score)
12490 (gnus-summary-mark-article nil mark))
12492 (gnus-summary-find-next)))))
12494 ;; Suggested by Daniel Quinlan <quinlan@best.com>.
12495 (defalias 'gnus-summary-show-all-expunged 'gnus-summary-limit-include-expunged)
12496 (defun gnus-summary-limit-include-expunged ()
12497 "Display all the hidden articles that were expunged for low scores."
12498 (interactive)
12499 (gnus-set-global-variables)
12500 (let ((buffer-read-only nil))
12501 (let ((scored gnus-newsgroup-scored)
12502 headers h)
12503 (while scored
12504 (or (gnus-summary-goto-subject (caar scored))
12505 (and (setq h (gnus-summary-article-header (caar scored)))
12506 (< (cdar scored) gnus-summary-expunge-below)
12507 (setq headers (cons h headers))))
12508 (setq scored (cdr scored)))
12509 (or headers (error "No expunged articles hidden."))
12510 (goto-char (point-min))
12511 (gnus-summary-prepare-unthreaded (nreverse headers)))
12512 (goto-char (point-min))
12513 (gnus-summary-position-point)))
12515 (defun gnus-summary-catchup (&optional all quietly to-here not-mark)
12516 "Mark all articles not marked as unread in this newsgroup as read.
12517 If prefix argument ALL is non-nil, all articles are marked as read.
12518 If QUIETLY is non-nil, no questions will be asked.
12519 If TO-HERE is non-nil, it should be a point in the buffer. All
12520 articles before this point will be marked as read.
12521 The number of articles marked as read is returned."
12522 (interactive "P")
12523 (gnus-set-global-variables)
12524 (prog1
12525 (if (or quietly
12526 (not gnus-interactive-catchup) ;Without confirmation?
12527 gnus-expert-user
12528 (gnus-y-or-n-p
12529 (if all
12530 "Mark absolutely all articles as read? "
12531 "Mark all unread articles as read? ")))
12532 (if (and not-mark
12533 (not gnus-newsgroup-adaptive)
12534 (not gnus-newsgroup-auto-expire))
12535 (progn
12536 (when all
12537 (setq gnus-newsgroup-marked nil
12538 gnus-newsgroup-dormant nil))
12539 (setq gnus-newsgroup-unreads nil))
12540 ;; We actually mark all articles as canceled, which we
12541 ;; have to do when using auto-expiry or adaptive scoring.
12542 (gnus-summary-show-all-threads)
12543 (if (gnus-summary-first-subject (not all))
12544 (while (and
12545 (if to-here (< (point) to-here) t)
12546 (gnus-summary-mark-article-as-read gnus-catchup-mark)
12547 (gnus-summary-find-next (not all)))))
12548 (unless to-here
12549 (setq gnus-newsgroup-unreads nil))
12550 (gnus-set-mode-line 'summary)))
12551 (let ((method (gnus-find-method-for-group gnus-newsgroup-name)))
12552 (if (and (not to-here) (eq 'nnvirtual (car method)))
12553 (nnvirtual-catchup-group
12554 (gnus-group-real-name gnus-newsgroup-name) (nth 1 method) all)))
12555 (gnus-summary-position-point)))
12557 (defun gnus-summary-catchup-to-here (&optional all)
12558 "Mark all unticked articles before the current one as read.
12559 If ALL is non-nil, also mark ticked and dormant articles as read."
12560 (interactive "P")
12561 (gnus-set-global-variables)
12562 (save-excursion
12563 (gnus-save-hidden-threads
12564 (let ((beg (point)))
12565 ;; We check that there are unread articles.
12566 (when (or all (gnus-summary-find-prev))
12567 (gnus-summary-catchup all t beg)))))
12568 (gnus-summary-position-point))
12570 (defun gnus-summary-catchup-all (&optional quietly)
12571 "Mark all articles in this newsgroup as read."
12572 (interactive "P")
12573 (gnus-set-global-variables)
12574 (gnus-summary-catchup t quietly))
12576 (defun gnus-summary-catchup-and-exit (&optional all quietly)
12577 "Mark all articles not marked as unread in this newsgroup as read, then exit.
12578 If prefix argument ALL is non-nil, all articles are marked as read."
12579 (interactive "P")
12580 (gnus-set-global-variables)
12581 (gnus-summary-catchup all quietly nil 'fast)
12582 ;; Select next newsgroup or exit.
12583 (if (eq gnus-auto-select-next 'quietly)
12584 (gnus-summary-next-group nil)
12585 (gnus-summary-exit)))
12587 (defun gnus-summary-catchup-all-and-exit (&optional quietly)
12588 "Mark all articles in this newsgroup as read, and then exit."
12589 (interactive "P")
12590 (gnus-set-global-variables)
12591 (gnus-summary-catchup-and-exit t quietly))
12593 ;; Suggested by "Arne Eofsson" <arne@hodgkin.mbi.ucla.edu>.
12594 (defun gnus-summary-catchup-and-goto-next-group (&optional all)
12595 "Mark all articles in this group as read and select the next group.
12596 If given a prefix, mark all articles, unread as well as ticked, as
12597 read."
12598 (interactive "P")
12599 (gnus-set-global-variables)
12600 (save-excursion
12601 (gnus-summary-catchup all))
12602 (gnus-summary-next-article t nil nil t))
12604 ;; Thread-based commands.
12606 (defun gnus-summary-articles-in-thread (&optional article)
12607 "Return a list of all articles in the current thread.
12608 If ARTICLE is non-nil, return all articles in the thread that starts
12609 with that article."
12610 (let* ((article (or article (gnus-summary-article-number)))
12611 (data (gnus-data-find-list article))
12612 (top-level (gnus-data-level (car data)))
12613 (top-subject
12614 (cond ((null gnus-thread-operation-ignore-subject)
12615 (gnus-simplify-subject-re
12616 (mail-header-subject (gnus-data-header (car data)))))
12617 ((eq gnus-thread-operation-ignore-subject 'fuzzy)
12618 (gnus-simplify-subject-fuzzy
12619 (mail-header-subject (gnus-data-header (car data)))))
12620 (t nil)))
12621 (end-point (save-excursion
12622 (if (gnus-summary-go-to-next-thread)
12623 (point) (point-max))))
12624 articles)
12625 (while (and data
12626 (< (gnus-data-pos (car data)) end-point))
12627 (when (or (not top-subject)
12628 (string= top-subject
12629 (if (eq gnus-thread-operation-ignore-subject 'fuzzy)
12630 (gnus-simplify-subject-fuzzy
12631 (mail-header-subject
12632 (gnus-data-header (car data))))
12633 (gnus-simplify-subject-re
12634 (mail-header-subject
12635 (gnus-data-header (car data)))))))
12636 (push (gnus-data-number (car data)) articles))
12637 (unless (and (setq data (cdr data))
12638 (> (gnus-data-level (car data)) top-level))
12639 (setq data nil)))
12640 ;; Return the list of articles.
12641 (nreverse articles)))
12643 (defun gnus-summary-rethread-current ()
12644 "Rethread the thread the current article is part of."
12645 (interactive)
12646 (gnus-set-global-variables)
12647 (let* ((gnus-show-threads t)
12648 (article (gnus-summary-article-number))
12649 (id (mail-header-id (gnus-summary-article-header)))
12650 (gnus-newsgroup-threads (list (gnus-id-to-thread (gnus-root-id id)))))
12651 (unless id
12652 (error "No article on the current line"))
12653 (gnus-rebuild-thread id)
12654 (gnus-summary-goto-subject article)))
12656 (defun gnus-summary-reparent-thread ()
12657 "Make current article child of the marked (or previous) article.
12659 Note that the re-threading will only work if `gnus-thread-ignore-subject'
12660 is non-nil or the Subject: of both articles are the same."
12661 (interactive)
12662 (or (not (gnus-group-read-only-p))
12663 (error "The current newsgroup does not support article editing."))
12664 (or (<= (length gnus-newsgroup-processable) 1)
12665 (error "No more than one article may be marked."))
12666 (save-window-excursion
12667 (let ((gnus-article-buffer " *reparent*")
12668 (current-article (gnus-summary-article-number))
12669 ; first grab the marked article, otherwise one line up.
12670 (parent-article (if (not (null gnus-newsgroup-processable))
12671 (car gnus-newsgroup-processable)
12672 (save-excursion
12673 (if (eq (forward-line -1) 0)
12674 (gnus-summary-article-number)
12675 (error "Beginning of summary buffer."))))))
12676 (or (not (eq current-article parent-article))
12677 (error "An article may not be self-referential."))
12678 (let ((message-id (mail-header-id
12679 (gnus-summary-article-header parent-article))))
12680 (or (and message-id (not (equal message-id "")))
12681 (error "No message-id in desired parent."))
12682 (gnus-summary-select-article t t nil current-article)
12683 (set-buffer gnus-article-buffer)
12684 (setq buffer-read-only nil)
12685 (let ((buf (format "%s" (buffer-string))))
12686 (erase-buffer)
12687 (insert buf))
12688 (goto-char (point-min))
12689 (if (search-forward-regexp "^References: " nil t)
12690 (insert message-id " " )
12691 (insert "References: " message-id "\n"))
12692 (or (gnus-request-replace-article current-article
12693 (car gnus-article-current)
12694 gnus-article-buffer)
12695 (error "Couldn't replace article."))
12696 (set-buffer gnus-summary-buffer)
12697 (gnus-summary-unmark-all-processable)
12698 (gnus-summary-rethread-current)
12699 (gnus-message 3 "Article %d is now the child of article %d."
12700 current-article parent-article)))))
12702 (defun gnus-summary-toggle-threads (&optional arg)
12703 "Toggle showing conversation threads.
12704 If ARG is positive number, turn showing conversation threads on."
12705 (interactive "P")
12706 (gnus-set-global-variables)
12707 (let ((current (or (gnus-summary-article-number) gnus-newsgroup-end)))
12708 (setq gnus-show-threads
12709 (if (null arg) (not gnus-show-threads)
12710 (> (prefix-numeric-value arg) 0)))
12711 (gnus-summary-prepare)
12712 (gnus-summary-goto-subject current)
12713 (gnus-summary-position-point)))
12715 (defun gnus-summary-show-all-threads ()
12716 "Show all threads."
12717 (interactive)
12718 (gnus-set-global-variables)
12719 (save-excursion
12720 (let ((buffer-read-only nil))
12721 (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)))
12722 (gnus-summary-position-point))
12724 (defun gnus-summary-show-thread ()
12725 "Show thread subtrees.
12726 Returns nil if no thread was there to be shown."
12727 (interactive)
12728 (gnus-set-global-variables)
12729 (let ((buffer-read-only nil)
12730 (orig (point))
12731 ;; first goto end then to beg, to have point at beg after let
12732 (end (progn (end-of-line) (point)))
12733 (beg (progn (beginning-of-line) (point))))
12734 (prog1
12735 ;; Any hidden lines here?
12736 (search-forward "\r" end t)
12737 (subst-char-in-region beg end ?\^M ?\n t)
12738 (goto-char orig)
12739 (gnus-summary-position-point))))
12741 (defun gnus-summary-hide-all-threads ()
12742 "Hide all thread subtrees."
12743 (interactive)
12744 (gnus-set-global-variables)
12745 (save-excursion
12746 (goto-char (point-min))
12747 (gnus-summary-hide-thread)
12748 (while (zerop (gnus-summary-next-thread 1 t))
12749 (gnus-summary-hide-thread)))
12750 (gnus-summary-position-point))
12752 (defun gnus-summary-hide-thread ()
12753 "Hide thread subtrees.
12754 Returns nil if no threads were there to be hidden."
12755 (interactive)
12756 (gnus-set-global-variables)
12757 (let ((buffer-read-only nil)
12758 (start (point))
12759 (article (gnus-summary-article-number)))
12760 (goto-char start)
12761 ;; Go forward until either the buffer ends or the subthread
12762 ;; ends.
12763 (when (and (not (eobp))
12764 (or (zerop (gnus-summary-next-thread 1 t))
12765 (goto-char (point-max))))
12766 (prog1
12767 (if (and (> (point) start)
12768 (search-backward "\n" start t))
12769 (progn
12770 (subst-char-in-region start (point) ?\n ?\^M)
12771 (gnus-summary-goto-subject article))
12772 (goto-char start)
12773 nil)
12774 ;;(gnus-summary-position-point)
12775 ))))
12777 (defun gnus-summary-go-to-next-thread (&optional previous)
12778 "Go to the same level (or less) next thread.
12779 If PREVIOUS is non-nil, go to previous thread instead.
12780 Return the article number moved to, or nil if moving was impossible."
12781 (let ((level (gnus-summary-thread-level))
12782 (way (if previous -1 1))
12783 (beg (point)))
12784 (forward-line way)
12785 (while (and (not (eobp))
12786 (< level (gnus-summary-thread-level)))
12787 (forward-line way))
12788 (if (eobp)
12789 (progn
12790 (goto-char beg)
12791 nil)
12792 (setq beg (point))
12793 (prog1
12794 (gnus-summary-article-number)
12795 (goto-char beg)))))
12797 (defun gnus-summary-go-to-next-thread-old (&optional previous)
12798 "Go to the same level (or less) next thread.
12799 If PREVIOUS is non-nil, go to previous thread instead.
12800 Return the article number moved to, or nil if moving was impossible."
12801 (if (and (eq gnus-summary-make-false-root 'dummy)
12802 (gnus-summary-article-intangible-p))
12803 (let ((beg (point)))
12804 (while (and (zerop (forward-line 1))
12805 (not (gnus-summary-article-intangible-p))
12806 (not (zerop (save-excursion
12807 (gnus-summary-thread-level))))))
12808 (if (eobp)
12809 (progn
12810 (goto-char beg)
12811 nil)
12812 (point)))
12813 (let* ((level (gnus-summary-thread-level))
12814 (article (gnus-summary-article-number))
12815 (data (cdr (gnus-data-find-list article (gnus-data-list previous))))
12816 oart)
12817 (while data
12818 (if (<= (gnus-data-level (car data)) level)
12819 (setq oart (gnus-data-number (car data))
12820 data nil)
12821 (setq data (cdr data))))
12822 (and oart
12823 (gnus-summary-goto-subject oart)))))
12825 (defun gnus-summary-next-thread (n &optional silent)
12826 "Go to the same level next N'th thread.
12827 If N is negative, search backward instead.
12828 Returns the difference between N and the number of skips actually
12829 done.
12831 If SILENT, don't output messages."
12832 (interactive "p")
12833 (gnus-set-global-variables)
12834 (let ((backward (< n 0))
12835 (n (abs n))
12836 old dum int)
12837 (while (and (> n 0)
12838 (gnus-summary-go-to-next-thread backward))
12839 (decf n))
12840 (unless silent
12841 (gnus-summary-position-point))
12842 (when (and (not silent) (/= 0 n))
12843 (gnus-message 7 "No more threads"))
12846 (defun gnus-summary-prev-thread (n)
12847 "Go to the same level previous N'th thread.
12848 Returns the difference between N and the number of skips actually
12849 done."
12850 (interactive "p")
12851 (gnus-set-global-variables)
12852 (gnus-summary-next-thread (- n)))
12854 (defun gnus-summary-go-down-thread ()
12855 "Go down one level in the current thread."
12856 (let ((children (gnus-summary-article-children)))
12857 (and children
12858 (gnus-summary-goto-subject (car children)))))
12860 (defun gnus-summary-go-up-thread ()
12861 "Go up one level in the current thread."
12862 (let ((parent (gnus-summary-article-parent)))
12863 (and parent
12864 (gnus-summary-goto-subject parent))))
12866 (defun gnus-summary-down-thread (n)
12867 "Go down thread N steps.
12868 If N is negative, go up instead.
12869 Returns the difference between N and how many steps down that were
12870 taken."
12871 (interactive "p")
12872 (gnus-set-global-variables)
12873 (let ((up (< n 0))
12874 (n (abs n)))
12875 (while (and (> n 0)
12876 (if up (gnus-summary-go-up-thread)
12877 (gnus-summary-go-down-thread)))
12878 (setq n (1- n)))
12879 (gnus-summary-position-point)
12880 (if (/= 0 n) (gnus-message 7 "Can't go further"))
12883 (defun gnus-summary-up-thread (n)
12884 "Go up thread N steps.
12885 If N is negative, go up instead.
12886 Returns the difference between N and how many steps down that were
12887 taken."
12888 (interactive "p")
12889 (gnus-set-global-variables)
12890 (gnus-summary-down-thread (- n)))
12892 (defun gnus-summary-top-thread ()
12893 "Go to the top of the thread."
12894 (interactive)
12895 (gnus-set-global-variables)
12896 (while (gnus-summary-go-up-thread))
12897 (gnus-summary-article-number))
12899 (defun gnus-summary-kill-thread (&optional unmark)
12900 "Mark articles under current thread as read.
12901 If the prefix argument is positive, remove any kinds of marks.
12902 If the prefix argument is negative, tick articles instead."
12903 (interactive "P")
12904 (gnus-set-global-variables)
12905 (when unmark
12906 (setq unmark (prefix-numeric-value unmark)))
12907 (let ((articles (gnus-summary-articles-in-thread)))
12908 (save-excursion
12909 ;; Expand the thread.
12910 (gnus-summary-show-thread)
12911 ;; Mark all the articles.
12912 (while articles
12913 (gnus-summary-goto-subject (car articles))
12914 (cond ((null unmark)
12915 (gnus-summary-mark-article-as-read gnus-killed-mark))
12916 ((> unmark 0)
12917 (gnus-summary-mark-article-as-unread gnus-unread-mark))
12919 (gnus-summary-mark-article-as-unread gnus-ticked-mark)))
12920 (setq articles (cdr articles))))
12921 ;; Hide killed subtrees.
12922 (and (null unmark)
12923 gnus-thread-hide-killed
12924 (gnus-summary-hide-thread))
12925 ;; If marked as read, go to next unread subject.
12926 (if (null unmark)
12927 ;; Go to next unread subject.
12928 (gnus-summary-next-subject 1 t)))
12929 (gnus-set-mode-line 'summary))
12931 ;; Summary sorting commands
12933 (defun gnus-summary-sort-by-number (&optional reverse)
12934 "Sort summary buffer by article number.
12935 Argument REVERSE means reverse order."
12936 (interactive "P")
12937 (gnus-summary-sort 'number reverse))
12939 (defun gnus-summary-sort-by-author (&optional reverse)
12940 "Sort summary buffer by author name alphabetically.
12941 If case-fold-search is non-nil, case of letters is ignored.
12942 Argument REVERSE means reverse order."
12943 (interactive "P")
12944 (gnus-summary-sort 'author reverse))
12946 (defun gnus-summary-sort-by-subject (&optional reverse)
12947 "Sort summary buffer by subject alphabetically. `Re:'s are ignored.
12948 If case-fold-search is non-nil, case of letters is ignored.
12949 Argument REVERSE means reverse order."
12950 (interactive "P")
12951 (gnus-summary-sort 'subject reverse))
12953 (defun gnus-summary-sort-by-date (&optional reverse)
12954 "Sort summary buffer by date.
12955 Argument REVERSE means reverse order."
12956 (interactive "P")
12957 (gnus-summary-sort 'date reverse))
12959 (defun gnus-summary-sort-by-score (&optional reverse)
12960 "Sort summary buffer by score.
12961 Argument REVERSE means reverse order."
12962 (interactive "P")
12963 (gnus-summary-sort 'score reverse))
12965 (defun gnus-summary-sort (predicate reverse)
12966 "Sort summary buffer by PREDICATE. REVERSE means reverse order."
12967 (gnus-set-global-variables)
12968 (let* ((thread (intern (format "gnus-thread-sort-by-%s" predicate)))
12969 (article (intern (format "gnus-article-sort-by-%s" predicate)))
12970 (gnus-thread-sort-functions
12971 (list
12972 (if (not reverse)
12973 thread
12974 `(lambda (t1 t2)
12975 (,thread t2 t1)))))
12976 (gnus-article-sort-functions
12977 (list
12978 (if (not reverse)
12979 article
12980 `(lambda (t1 t2)
12981 (,article t2 t1)))))
12982 (buffer-read-only)
12983 (gnus-summary-prepare-hook nil))
12984 ;; We do the sorting by regenerating the threads.
12985 (gnus-summary-prepare)
12986 ;; Hide subthreads if needed.
12987 (when (and gnus-show-threads gnus-thread-hide-subtree)
12988 (gnus-summary-hide-all-threads)))
12989 ;; If in async mode, we send some info to the backend.
12990 (when gnus-newsgroup-async
12991 (gnus-request-asynchronous
12992 gnus-newsgroup-name gnus-newsgroup-data)))
12994 (defun gnus-sortable-date (date)
12995 "Make sortable string by string-lessp from DATE.
12996 Timezone package is used."
12997 (condition-case ()
12998 (progn
12999 (setq date (inline (timezone-fix-time
13000 date nil
13001 (aref (inline (timezone-parse-date date)) 4))))
13002 (inline
13003 (timezone-make-sortable-date
13004 (aref date 0) (aref date 1) (aref date 2)
13005 (inline
13006 (timezone-make-time-string
13007 (aref date 3) (aref date 4) (aref date 5))))))
13008 (error "")))
13010 ;; Summary saving commands.
13012 (defun gnus-summary-save-article (&optional n not-saved)
13013 "Save the current article using the default saver function.
13014 If N is a positive number, save the N next articles.
13015 If N is a negative number, save the N previous articles.
13016 If N is nil and any articles have been marked with the process mark,
13017 save those articles instead.
13018 The variable `gnus-default-article-saver' specifies the saver function."
13019 (interactive "P")
13020 (gnus-set-global-variables)
13021 (let ((articles (gnus-summary-work-articles n))
13022 (save-buffer (save-excursion
13023 (nnheader-set-temp-buffer " *Gnus Save*")))
13024 file header article)
13025 (while articles
13026 (setq header (gnus-summary-article-header
13027 (setq article (pop articles))))
13028 (if (not (vectorp header))
13029 ;; This is a pseudo-article.
13030 (if (assq 'name header)
13031 (gnus-copy-file (cdr (assq 'name header)))
13032 (gnus-message 1 "Article %d is unsaveable" article))
13033 ;; This is a real article.
13034 (save-window-excursion
13035 (gnus-summary-select-article t nil nil article))
13036 (save-excursion
13037 (set-buffer save-buffer)
13038 (erase-buffer)
13039 (insert-buffer-substring gnus-original-article-buffer))
13040 (unless gnus-save-all-headers
13041 ;; Remove headers accoring to `gnus-saved-headers'.
13042 (let ((gnus-visible-headers
13043 (or gnus-saved-headers gnus-visible-headers))
13044 (gnus-article-buffer save-buffer))
13045 (gnus-article-hide-headers 1 t)))
13046 (save-window-excursion
13047 (if (not gnus-default-article-saver)
13048 (error "No default saver is defined.")
13049 ;; !!! Magic! The saving functions all save
13050 ;; `gnus-original-article-buffer' (or so they think),
13051 ;; but we bind that variable to our save-buffer.
13052 (set-buffer gnus-article-buffer)
13053 (let ((gnus-original-article-buffer save-buffer))
13054 (set-buffer gnus-summary-buffer)
13055 (setq file (funcall
13056 gnus-default-article-saver
13057 (cond
13058 ((not gnus-prompt-before-saving)
13059 'default)
13060 ((eq gnus-prompt-before-saving 'always)
13061 nil)
13062 (t file)))))))
13063 (gnus-summary-remove-process-mark article)
13064 (unless not-saved
13065 (gnus-summary-set-saved-mark article))))
13066 (gnus-kill-buffer save-buffer)
13067 (gnus-summary-position-point)
13070 (defun gnus-summary-pipe-output (&optional arg)
13071 "Pipe the current article to a subprocess.
13072 If N is a positive number, pipe the N next articles.
13073 If N is a negative number, pipe the N previous articles.
13074 If N is nil and any articles have been marked with the process mark,
13075 pipe those articles instead."
13076 (interactive "P")
13077 (gnus-set-global-variables)
13078 (let ((gnus-default-article-saver 'gnus-summary-save-in-pipe))
13079 (gnus-summary-save-article arg t))
13080 (gnus-configure-windows 'pipe))
13082 (defun gnus-summary-save-article-mail (&optional arg)
13083 "Append the current article to an mail file.
13084 If N is a positive number, save the N next articles.
13085 If N is a negative number, save the N previous articles.
13086 If N is nil and any articles have been marked with the process mark,
13087 save those articles instead."
13088 (interactive "P")
13089 (gnus-set-global-variables)
13090 (let ((gnus-default-article-saver 'gnus-summary-save-in-mail))
13091 (gnus-summary-save-article arg)))
13093 (defun gnus-summary-save-article-rmail (&optional arg)
13094 "Append the current article to an rmail file.
13095 If N is a positive number, save the N next articles.
13096 If N is a negative number, save the N previous articles.
13097 If N is nil and any articles have been marked with the process mark,
13098 save those articles instead."
13099 (interactive "P")
13100 (gnus-set-global-variables)
13101 (let ((gnus-default-article-saver 'gnus-summary-save-in-rmail))
13102 (gnus-summary-save-article arg)))
13104 (defun gnus-summary-save-article-file (&optional arg)
13105 "Append the current article to a file.
13106 If N is a positive number, save the N next articles.
13107 If N is a negative number, save the N previous articles.
13108 If N is nil and any articles have been marked with the process mark,
13109 save those articles instead."
13110 (interactive "P")
13111 (gnus-set-global-variables)
13112 (let ((gnus-default-article-saver 'gnus-summary-save-in-file))
13113 (gnus-summary-save-article arg)))
13115 (defun gnus-summary-save-article-body-file (&optional arg)
13116 "Append the current article body to a file.
13117 If N is a positive number, save the N next articles.
13118 If N is a negative number, save the N previous articles.
13119 If N is nil and any articles have been marked with the process mark,
13120 save those articles instead."
13121 (interactive "P")
13122 (gnus-set-global-variables)
13123 (let ((gnus-default-article-saver 'gnus-summary-save-body-in-file))
13124 (gnus-summary-save-article arg)))
13126 (defun gnus-get-split-value (methods)
13127 "Return a value based on the split METHODS."
13128 (let (split-name method result match)
13129 (when methods
13130 (save-excursion
13131 (set-buffer gnus-original-article-buffer)
13132 (save-restriction
13133 (nnheader-narrow-to-headers)
13134 (while methods
13135 (goto-char (point-min))
13136 (setq method (pop methods))
13137 (setq match (car method))
13138 (when (cond
13139 ((stringp match)
13140 ;; Regular expression.
13141 (condition-case ()
13142 (re-search-forward match nil t)
13143 (error nil)))
13144 ((gnus-functionp match)
13145 ;; Function.
13146 (save-restriction
13147 (widen)
13148 (setq result (funcall match gnus-newsgroup-name))))
13149 ((consp match)
13150 ;; Form.
13151 (save-restriction
13152 (widen)
13153 (setq result (eval match)))))
13154 (setq split-name (append (cdr method) split-name))
13155 (cond ((stringp result)
13156 (push result split-name))
13157 ((consp result)
13158 (setq split-name (append result split-name)))))))))
13159 split-name))
13161 (defun gnus-read-move-group-name (prompt default articles prefix)
13162 "Read a group name."
13163 (let* ((split-name (gnus-get-split-value gnus-move-split-methods))
13164 (minibuffer-confirm-incomplete nil) ; XEmacs
13165 group-map
13166 (dum (mapatoms
13167 (lambda (g)
13168 (and (boundp g)
13169 (symbol-name g)
13170 (memq 'respool
13171 (assoc (symbol-name
13172 (car (gnus-find-method-for-group
13173 (symbol-name g))))
13174 gnus-valid-select-methods))
13175 (push (list (symbol-name g)) group-map)))
13176 gnus-active-hashtb))
13177 (prom
13178 (format "%s %s to:"
13179 prompt
13180 (if (> (length articles) 1)
13181 (format "these %d articles" (length articles))
13182 "this article")))
13183 (to-newsgroup
13184 (cond
13185 ((null split-name)
13186 (gnus-completing-read default prom
13187 group-map nil nil prefix
13188 'gnus-group-history))
13189 ((= 1 (length split-name))
13190 (gnus-completing-read (car split-name) prom group-map
13191 nil nil nil
13192 'gnus-group-history))
13194 (gnus-completing-read nil prom
13195 (mapcar (lambda (el) (list el))
13196 (nreverse split-name))
13197 nil nil nil
13198 'gnus-group-history)))))
13199 (when to-newsgroup
13200 (if (or (string= to-newsgroup "")
13201 (string= to-newsgroup prefix))
13202 (setq to-newsgroup (or default "")))
13203 (or (gnus-active to-newsgroup)
13204 (gnus-activate-group to-newsgroup)
13205 (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
13206 to-newsgroup))
13207 (or (and (gnus-request-create-group
13208 to-newsgroup (gnus-group-name-to-method to-newsgroup))
13209 (gnus-activate-group to-newsgroup nil nil
13210 (gnus-group-name-to-method
13211 to-newsgroup)))
13212 (error "Couldn't create group %s" to-newsgroup)))
13213 (error "No such group: %s" to-newsgroup)))
13214 to-newsgroup))
13216 (defun gnus-read-save-file-name (prompt default-name)
13217 (let* ((split-name (gnus-get-split-value gnus-split-methods))
13218 (file
13219 ;; Let the split methods have their say.
13220 (cond
13221 ;; No split name was found.
13222 ((null split-name)
13223 (read-file-name
13224 (concat prompt " (default "
13225 (file-name-nondirectory default-name) ") ")
13226 (file-name-directory default-name)
13227 default-name))
13228 ;; A single split name was found
13229 ((= 1 (length split-name))
13230 (let* ((name (car split-name))
13231 (dir (cond ((file-directory-p name)
13232 (file-name-as-directory name))
13233 ((file-exists-p name) name)
13234 (t gnus-article-save-directory))))
13235 (read-file-name
13236 (concat prompt " (default " name ") ")
13237 dir name)))
13238 ;; A list of splits was found.
13240 (setq split-name (nreverse split-name))
13241 (let (result)
13242 (let ((file-name-history (nconc split-name file-name-history)))
13243 (setq result
13244 (read-file-name
13245 (concat prompt " (`M-p' for defaults) ")
13246 gnus-article-save-directory
13247 (car split-name))))
13248 (car (push result file-name-history)))))))
13249 ;; If we have read a directory, we append the default file name.
13250 (when (file-directory-p file)
13251 (setq file (concat (file-name-as-directory file)
13252 (file-name-nondirectory default-name))))
13253 ;; Possibly translate some charaters.
13254 (nnheader-translate-file-chars file)))
13256 (defun gnus-article-archive-name (group)
13257 "Return the first instance of an \"Archive-name\" in the current buffer."
13258 (let ((case-fold-search t))
13259 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
13260 (match-string 1))))
13262 (defun gnus-summary-save-in-rmail (&optional filename)
13263 "Append this article to Rmail file.
13264 Optional argument FILENAME specifies file name.
13265 Directory to save to is default to `gnus-article-save-directory'."
13266 (interactive)
13267 (gnus-set-global-variables)
13268 (let ((default-name
13269 (funcall gnus-rmail-save-name gnus-newsgroup-name
13270 gnus-current-headers gnus-newsgroup-last-rmail)))
13271 (setq filename
13272 (cond ((eq filename 'default)
13273 default-name)
13274 (filename filename)
13275 (t (gnus-read-save-file-name
13276 "Save in rmail file:" default-name))))
13277 (gnus-make-directory (file-name-directory filename))
13278 (gnus-eval-in-buffer-window gnus-original-article-buffer
13279 (save-excursion
13280 (save-restriction
13281 (widen)
13282 (gnus-output-to-rmail filename))))
13283 ;; Remember the directory name to save articles
13284 (setq gnus-newsgroup-last-rmail filename)))
13286 (defun gnus-summary-save-in-mail (&optional filename)
13287 "Append this article to Unix mail file.
13288 Optional argument FILENAME specifies file name.
13289 Directory to save to is default to `gnus-article-save-directory'."
13290 (interactive)
13291 (gnus-set-global-variables)
13292 (let ((default-name
13293 (funcall gnus-mail-save-name gnus-newsgroup-name
13294 gnus-current-headers gnus-newsgroup-last-mail)))
13295 (setq filename
13296 (cond ((eq filename 'default)
13297 default-name)
13298 (filename filename)
13299 (t (gnus-read-save-file-name
13300 "Save in Unix mail file:" default-name))))
13301 (setq filename
13302 (expand-file-name filename
13303 (and default-name
13304 (file-name-directory default-name))))
13305 (gnus-make-directory (file-name-directory filename))
13306 (gnus-eval-in-buffer-window gnus-original-article-buffer
13307 (save-excursion
13308 (save-restriction
13309 (widen)
13310 (if (and (file-readable-p filename) (mail-file-babyl-p filename))
13311 (gnus-output-to-rmail filename)
13312 (let ((mail-use-rfc822 t))
13313 (rmail-output filename 1 t t))))))
13314 ;; Remember the directory name to save articles.
13315 (setq gnus-newsgroup-last-mail filename)))
13317 (defun gnus-summary-save-in-file (&optional filename)
13318 "Append this article to file.
13319 Optional argument FILENAME specifies file name.
13320 Directory to save to is default to `gnus-article-save-directory'."
13321 (interactive)
13322 (gnus-set-global-variables)
13323 (let ((default-name
13324 (funcall gnus-file-save-name gnus-newsgroup-name
13325 gnus-current-headers gnus-newsgroup-last-file)))
13326 (setq filename
13327 (cond ((eq filename 'default)
13328 default-name)
13329 (filename filename)
13330 (t (gnus-read-save-file-name
13331 "Save in file:" default-name))))
13332 (gnus-make-directory (file-name-directory filename))
13333 (gnus-eval-in-buffer-window gnus-original-article-buffer
13334 (save-excursion
13335 (save-restriction
13336 (widen)
13337 (gnus-output-to-file filename))))
13338 ;; Remember the directory name to save articles.
13339 (setq gnus-newsgroup-last-file filename)))
13341 (defun gnus-summary-save-body-in-file (&optional filename)
13342 "Append this article body to a file.
13343 Optional argument FILENAME specifies file name.
13344 The directory to save in defaults to `gnus-article-save-directory'."
13345 (interactive)
13346 (gnus-set-global-variables)
13347 (let ((default-name
13348 (funcall gnus-file-save-name gnus-newsgroup-name
13349 gnus-current-headers gnus-newsgroup-last-file)))
13350 (setq filename
13351 (cond ((eq filename 'default)
13352 default-name)
13353 (filename filename)
13354 (t (gnus-read-save-file-name
13355 "Save body in file:" default-name))))
13356 (gnus-make-directory (file-name-directory filename))
13357 (gnus-eval-in-buffer-window gnus-original-article-buffer
13358 (save-excursion
13359 (save-restriction
13360 (widen)
13361 (goto-char (point-min))
13362 (and (search-forward "\n\n" nil t)
13363 (narrow-to-region (point) (point-max)))
13364 (gnus-output-to-file filename))))
13365 ;; Remember the directory name to save articles.
13366 (setq gnus-newsgroup-last-file filename)))
13368 (defun gnus-summary-save-in-pipe (&optional command)
13369 "Pipe this article to subprocess."
13370 (interactive)
13371 (gnus-set-global-variables)
13372 (setq command
13373 (cond ((eq command 'default)
13374 gnus-last-shell-command)
13375 (command command)
13376 (t (read-string "Shell command on article: "
13377 gnus-last-shell-command))))
13378 (if (string-equal command "")
13379 (setq command gnus-last-shell-command))
13380 (gnus-eval-in-buffer-window gnus-article-buffer
13381 (save-restriction
13382 (widen)
13383 (shell-command-on-region (point-min) (point-max) command nil)))
13384 (setq gnus-last-shell-command command))
13386 ;; Summary extract commands
13388 (defun gnus-summary-insert-pseudos (pslist &optional not-view)
13389 (let ((buffer-read-only nil)
13390 (article (gnus-summary-article-number))
13391 after-article b e)
13392 (or (gnus-summary-goto-subject article)
13393 (error (format "No such article: %d" article)))
13394 (gnus-summary-position-point)
13395 ;; If all commands are to be bunched up on one line, we collect
13396 ;; them here.
13397 (if gnus-view-pseudos-separately
13399 (let ((ps (setq pslist (sort pslist 'gnus-pseudos<)))
13400 files action)
13401 (while ps
13402 (setq action (cdr (assq 'action (car ps))))
13403 (setq files (list (cdr (assq 'name (car ps)))))
13404 (while (and ps (cdr ps)
13405 (string= (or action "1")
13406 (or (cdr (assq 'action (cadr ps))) "2")))
13407 (setq files (cons (cdr (assq 'name (cadr ps))) files))
13408 (setcdr ps (cddr ps)))
13409 (if (not files)
13411 (if (not (string-match "%s" action))
13412 (setq files (cons " " files)))
13413 (setq files (cons " " files))
13414 (and (assq 'execute (car ps))
13415 (setcdr (assq 'execute (car ps))
13416 (funcall (if (string-match "%s" action)
13417 'format 'concat)
13418 action
13419 (mapconcat (lambda (f) f) files " ")))))
13420 (setq ps (cdr ps)))))
13421 (if (and gnus-view-pseudos (not not-view))
13422 (while pslist
13423 (and (assq 'execute (car pslist))
13424 (gnus-execute-command (cdr (assq 'execute (car pslist)))
13425 (eq gnus-view-pseudos 'not-confirm)))
13426 (setq pslist (cdr pslist)))
13427 (save-excursion
13428 (while pslist
13429 (setq after-article (or (cdr (assq 'article (car pslist)))
13430 (gnus-summary-article-number)))
13431 (gnus-summary-goto-subject after-article)
13432 (forward-line 1)
13433 (setq b (point))
13434 (insert " " (file-name-nondirectory
13435 (cdr (assq 'name (car pslist))))
13436 ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
13437 (setq e (point))
13438 (forward-line -1) ; back to `b'
13439 (gnus-add-text-properties
13440 b (1- e) (list 'gnus-number gnus-reffed-article-number
13441 gnus-mouse-face-prop gnus-mouse-face))
13442 (gnus-data-enter
13443 after-article gnus-reffed-article-number
13444 gnus-unread-mark b (car pslist) 0 (- e b))
13445 (push gnus-reffed-article-number gnus-newsgroup-unreads)
13446 (setq gnus-reffed-article-number (1- gnus-reffed-article-number))
13447 (setq pslist (cdr pslist)))))))
13449 (defun gnus-pseudos< (p1 p2)
13450 (let ((c1 (cdr (assq 'action p1)))
13451 (c2 (cdr (assq 'action p2))))
13452 (and c1 c2 (string< c1 c2))))
13454 (defun gnus-request-pseudo-article (props)
13455 (cond ((assq 'execute props)
13456 (gnus-execute-command (cdr (assq 'execute props)))))
13457 (let ((gnus-current-article (gnus-summary-article-number)))
13458 (run-hooks 'gnus-mark-article-hook)))
13460 (defun gnus-execute-command (command &optional automatic)
13461 (save-excursion
13462 (gnus-article-setup-buffer)
13463 (set-buffer gnus-article-buffer)
13464 (setq buffer-read-only nil)
13465 (let ((command (if automatic command (read-string "Command: " command)))
13466 ;; Just binding this here doesn't help, because there might
13467 ;; be output from the process after exiting the scope of
13468 ;; this `let'.
13469 ;; (buffer-read-only nil)
13471 (erase-buffer)
13472 (insert "$ " command "\n\n")
13473 (if gnus-view-pseudo-asynchronously
13474 (start-process "gnus-execute" nil shell-file-name
13475 shell-command-switch command)
13476 (call-process shell-file-name nil t nil
13477 shell-command-switch command)))))
13479 (defun gnus-copy-file (file &optional to)
13480 "Copy FILE to TO."
13481 (interactive
13482 (list (read-file-name "Copy file: " default-directory)
13483 (read-file-name "Copy file to: " default-directory)))
13484 (gnus-set-global-variables)
13485 (or to (setq to (read-file-name "Copy file to: " default-directory)))
13486 (and (file-directory-p to)
13487 (setq to (concat (file-name-as-directory to)
13488 (file-name-nondirectory file))))
13489 (copy-file file to))
13491 ;; Summary kill commands.
13493 (defun gnus-summary-edit-global-kill (article)
13494 "Edit the \"global\" kill file."
13495 (interactive (list (gnus-summary-article-number)))
13496 (gnus-set-global-variables)
13497 (gnus-group-edit-global-kill article))
13499 (defun gnus-summary-edit-local-kill ()
13500 "Edit a local kill file applied to the current newsgroup."
13501 (interactive)
13502 (gnus-set-global-variables)
13503 (setq gnus-current-headers (gnus-summary-article-header))
13504 (gnus-set-global-variables)
13505 (gnus-group-edit-local-kill
13506 (gnus-summary-article-number) gnus-newsgroup-name))
13510 ;;; Gnus article mode
13513 (put 'gnus-article-mode 'mode-class 'special)
13515 (if gnus-article-mode-map
13517 (setq gnus-article-mode-map (make-keymap))
13518 (suppress-keymap gnus-article-mode-map)
13520 (gnus-define-keys gnus-article-mode-map
13521 " " gnus-article-goto-next-page
13522 "\177" gnus-article-goto-prev-page
13523 [delete] gnus-article-goto-prev-page
13524 "\C-c^" gnus-article-refer-article
13525 "h" gnus-article-show-summary
13526 "s" gnus-article-show-summary
13527 "\C-c\C-m" gnus-article-mail
13528 "?" gnus-article-describe-briefly
13529 gnus-mouse-2 gnus-article-push-button
13530 "\r" gnus-article-press-button
13531 "\t" gnus-article-next-button
13532 "\M-\t" gnus-article-prev-button
13533 "<" beginning-of-buffer
13534 ">" end-of-buffer
13535 "\C-c\C-i" gnus-info-find-node
13536 "\C-c\C-b" gnus-bug)
13538 (substitute-key-definition
13539 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map))
13541 (defun gnus-article-mode ()
13542 "Major mode for displaying an article.
13544 All normal editing commands are switched off.
13546 The following commands are available:
13548 \\<gnus-article-mode-map>
13549 \\[gnus-article-next-page]\t Scroll the article one page forwards
13550 \\[gnus-article-prev-page]\t Scroll the article one page backwards
13551 \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
13552 \\[gnus-article-show-summary]\t Display the summary buffer
13553 \\[gnus-article-mail]\t Send a reply to the address near point
13554 \\[gnus-article-describe-briefly]\t Describe the current mode briefly
13555 \\[gnus-info-find-node]\t Go to the Gnus info node"
13556 (interactive)
13557 (when (and menu-bar-mode
13558 (gnus-visual-p 'article-menu 'menu))
13559 (gnus-article-make-menu-bar))
13560 (kill-all-local-variables)
13561 (gnus-simplify-mode-line)
13562 (setq mode-name "Article")
13563 (setq major-mode 'gnus-article-mode)
13564 (make-local-variable 'minor-mode-alist)
13565 (or (assq 'gnus-show-mime minor-mode-alist)
13566 (setq minor-mode-alist
13567 (cons (list 'gnus-show-mime " MIME") minor-mode-alist)))
13568 (use-local-map gnus-article-mode-map)
13569 (make-local-variable 'page-delimiter)
13570 (setq page-delimiter gnus-page-delimiter)
13571 (buffer-disable-undo (current-buffer))
13572 (setq buffer-read-only t) ;Disable modification
13573 (run-hooks 'gnus-article-mode-hook))
13575 (defun gnus-article-setup-buffer ()
13576 "Initialize the article buffer."
13577 (let* ((name (if gnus-single-article-buffer "*Article*"
13578 (concat "*Article " gnus-newsgroup-name "*")))
13579 (original
13580 (progn (string-match "\\*Article" name)
13581 (concat " *Original Article"
13582 (substring name (match-end 0))))))
13583 (setq gnus-article-buffer name)
13584 (setq gnus-original-article-buffer original)
13585 ;; This might be a variable local to the summary buffer.
13586 (unless gnus-single-article-buffer
13587 (save-excursion
13588 (set-buffer gnus-summary-buffer)
13589 (setq gnus-article-buffer name)
13590 (setq gnus-original-article-buffer original)
13591 (gnus-set-global-variables))
13592 (make-local-variable 'gnus-summary-buffer))
13593 ;; Init original article buffer.
13594 (save-excursion
13595 (set-buffer (get-buffer-create gnus-original-article-buffer))
13596 (buffer-disable-undo (current-buffer))
13597 (setq major-mode 'gnus-original-article-mode)
13598 (make-local-variable 'gnus-original-article))
13599 (if (get-buffer name)
13600 (save-excursion
13601 (set-buffer name)
13602 (buffer-disable-undo (current-buffer))
13603 (setq buffer-read-only t)
13604 (gnus-add-current-to-buffer-list)
13605 (or (eq major-mode 'gnus-article-mode)
13606 (gnus-article-mode))
13607 (current-buffer))
13608 (save-excursion
13609 (set-buffer (get-buffer-create name))
13610 (gnus-add-current-to-buffer-list)
13611 (gnus-article-mode)
13612 (current-buffer)))))
13614 ;; Set article window start at LINE, where LINE is the number of lines
13615 ;; from the head of the article.
13616 (defun gnus-article-set-window-start (&optional line)
13617 (set-window-start
13618 (get-buffer-window gnus-article-buffer t)
13619 (save-excursion
13620 (set-buffer gnus-article-buffer)
13621 (goto-char (point-min))
13622 (if (not line)
13623 (point-min)
13624 (gnus-message 6 "Moved to bookmark")
13625 (search-forward "\n\n" nil t)
13626 (forward-line line)
13627 (point)))))
13629 (defun gnus-kill-all-overlays ()
13630 "Delete all overlays in the current buffer."
13631 (when (fboundp 'overlay-lists)
13632 (let* ((overlayss (overlay-lists))
13633 (buffer-read-only nil)
13634 (overlays (nconc (car overlayss) (cdr overlayss))))
13635 (while overlays
13636 (delete-overlay (pop overlays))))))
13638 (defun gnus-request-article-this-buffer (article group)
13639 "Get an article and insert it into this buffer."
13640 (let (do-update-line)
13641 (prog1
13642 (save-excursion
13643 (erase-buffer)
13644 (gnus-kill-all-overlays)
13645 (setq group (or group gnus-newsgroup-name))
13647 ;; Open server if it has closed.
13648 (gnus-check-server (gnus-find-method-for-group group))
13650 ;; Using `gnus-request-article' directly will insert the article into
13651 ;; `nntp-server-buffer' - so we'll save some time by not having to
13652 ;; copy it from the server buffer into the article buffer.
13654 ;; We only request an article by message-id when we do not have the
13655 ;; headers for it, so we'll have to get those.
13656 (when (stringp article)
13657 (let ((gnus-override-method gnus-refer-article-method))
13658 (gnus-read-header article)))
13660 ;; If the article number is negative, that means that this article
13661 ;; doesn't belong in this newsgroup (possibly), so we find its
13662 ;; message-id and request it by id instead of number.
13663 (when (and (numberp article)
13664 gnus-summary-buffer
13665 (get-buffer gnus-summary-buffer)
13666 (buffer-name (get-buffer gnus-summary-buffer)))
13667 (save-excursion
13668 (set-buffer gnus-summary-buffer)
13669 (let ((header (gnus-summary-article-header article)))
13670 (if (< article 0)
13671 (cond
13672 ((memq article gnus-newsgroup-sparse)
13673 ;; This is a sparse gap article.
13674 (setq do-update-line article)
13675 (setq article (mail-header-id header))
13676 (let ((gnus-override-method gnus-refer-article-method))
13677 (gnus-read-header article))
13678 (setq gnus-newsgroup-sparse
13679 (delq article gnus-newsgroup-sparse)))
13680 ((vectorp header)
13681 ;; It's a real article.
13682 (setq article (mail-header-id header)))
13684 ;; It is an extracted pseudo-article.
13685 (setq article 'pseudo)
13686 (gnus-request-pseudo-article header))))
13688 (let ((method (gnus-find-method-for-group
13689 gnus-newsgroup-name)))
13690 (if (not (eq (car method) 'nneething))
13692 (let ((dir (concat (file-name-as-directory (nth 1 method))
13693 (mail-header-subject header))))
13694 (if (file-directory-p dir)
13695 (progn
13696 (setq article 'nneething)
13697 (gnus-group-enter-directory dir)))))))))
13699 (cond
13700 ;; Refuse to select canceled articles.
13701 ((and (numberp article)
13702 gnus-summary-buffer
13703 (get-buffer gnus-summary-buffer)
13704 (buffer-name (get-buffer gnus-summary-buffer))
13705 (eq (cdr (save-excursion
13706 (set-buffer gnus-summary-buffer)
13707 (assq article gnus-newsgroup-reads)))
13708 gnus-canceled-mark))
13709 nil)
13710 ;; We first check `gnus-original-article-buffer'.
13711 ((and (get-buffer gnus-original-article-buffer)
13712 (numberp article)
13713 (save-excursion
13714 (set-buffer gnus-original-article-buffer)
13715 (and (equal (car gnus-original-article) group)
13716 (eq (cdr gnus-original-article) article))))
13717 (insert-buffer-substring gnus-original-article-buffer)
13718 'article)
13719 ;; Check the backlog.
13720 ((and gnus-keep-backlog
13721 (gnus-backlog-request-article group article (current-buffer)))
13722 'article)
13723 ;; Check the cache.
13724 ((and gnus-use-cache
13725 (numberp article)
13726 (gnus-cache-request-article article group))
13727 'article)
13728 ;; Get the article and put into the article buffer.
13729 ((or (stringp article) (numberp article))
13730 (let ((gnus-override-method
13731 (and (stringp article) gnus-refer-article-method))
13732 (buffer-read-only nil))
13733 (erase-buffer)
13734 (gnus-kill-all-overlays)
13735 (if (gnus-request-article article group (current-buffer))
13736 (progn
13737 (and gnus-keep-backlog
13738 (numberp article)
13739 (gnus-backlog-enter-article
13740 group article (current-buffer)))
13741 'article))))
13742 ;; It was a pseudo.
13743 (t article)))
13745 ;; Take the article from the original article buffer
13746 ;; and place it in the buffer it's supposed to be in.
13747 (when (and (get-buffer gnus-article-buffer)
13748 ;;(numberp article)
13749 (equal (buffer-name (current-buffer))
13750 (buffer-name (get-buffer gnus-article-buffer))))
13751 (save-excursion
13752 (if (get-buffer gnus-original-article-buffer)
13753 (set-buffer (get-buffer gnus-original-article-buffer))
13754 (set-buffer (get-buffer-create gnus-original-article-buffer))
13755 (buffer-disable-undo (current-buffer))
13756 (setq major-mode 'gnus-original-article-mode)
13757 (setq buffer-read-only t)
13758 (gnus-add-current-to-buffer-list))
13759 (let (buffer-read-only)
13760 (erase-buffer)
13761 (insert-buffer-substring gnus-article-buffer))
13762 (setq gnus-original-article (cons group article))))
13764 ;; Update sparse articles.
13765 (when (and do-update-line
13766 (or (numberp article)
13767 (stringp article)))
13768 (let ((buf (current-buffer)))
13769 (set-buffer gnus-summary-buffer)
13770 (gnus-summary-update-article do-update-line)
13771 (gnus-summary-goto-subject do-update-line nil t)
13772 (set-window-point (get-buffer-window (current-buffer) t)
13773 (point))
13774 (set-buffer buf))))))
13776 (defun gnus-read-header (id &optional header)
13777 "Read the headers of article ID and enter them into the Gnus system."
13778 (let ((group gnus-newsgroup-name)
13779 (gnus-override-method
13780 (and (gnus-news-group-p gnus-newsgroup-name)
13781 gnus-refer-article-method))
13782 where)
13783 ;; First we check to see whether the header in question is already
13784 ;; fetched.
13785 (if (stringp id)
13786 ;; This is a Message-ID.
13787 (setq header (or header (gnus-id-to-header id)))
13788 ;; This is an article number.
13789 (setq header (or header (gnus-summary-article-header id))))
13790 (if (and header
13791 (not (memq (mail-header-number header) gnus-newsgroup-sparse)))
13792 ;; We have found the header.
13793 header
13794 ;; We have to really fetch the header to this article.
13795 (when (setq where (gnus-request-head id group))
13796 (save-excursion
13797 (set-buffer nntp-server-buffer)
13798 (goto-char (point-max))
13799 (insert ".\n")
13800 (goto-char (point-min))
13801 (insert "211 ")
13802 (princ (cond
13803 ((numberp id) id)
13804 ((cdr where) (cdr where))
13805 (header (mail-header-number header))
13806 (t gnus-reffed-article-number))
13807 (current-buffer))
13808 (insert " Article retrieved.\n"))
13809 ;(when (and header
13810 ; (memq (mail-header-number header) gnus-newsgroup-sparse))
13811 ; (setcar (gnus-id-to-thread id) nil))
13812 (if (not (setq header (car (gnus-get-newsgroup-headers))))
13813 () ; Malformed head.
13814 (unless (memq (mail-header-number header) gnus-newsgroup-sparse)
13815 (if (and (stringp id)
13816 (not (string= (gnus-group-real-name group)
13817 (car where))))
13818 ;; If we fetched by Message-ID and the article came
13819 ;; from a different group, we fudge some bogus article
13820 ;; numbers for this article.
13821 (mail-header-set-number header gnus-reffed-article-number))
13822 (decf gnus-reffed-article-number)
13823 (gnus-remove-header (mail-header-number header))
13824 (push header gnus-newsgroup-headers)
13825 (setq gnus-current-headers header)
13826 (push (mail-header-number header) gnus-newsgroup-limit))
13827 header)))))
13829 (defun gnus-remove-header (number)
13830 "Remove header NUMBER from `gnus-newsgroup-headers'."
13831 (if (and gnus-newsgroup-headers
13832 (= number (mail-header-number (car gnus-newsgroup-headers))))
13833 (pop gnus-newsgroup-headers)
13834 (let ((headers gnus-newsgroup-headers))
13835 (while (and (cdr headers)
13836 (not (= number (mail-header-number (cadr headers)))))
13837 (pop headers))
13838 (when (cdr headers)
13839 (setcdr headers (cddr headers))))))
13841 (defun gnus-article-prepare (article &optional all-headers header)
13842 "Prepare ARTICLE in article mode buffer.
13843 ARTICLE should either be an article number or a Message-ID.
13844 If ARTICLE is an id, HEADER should be the article headers.
13845 If ALL-HEADERS is non-nil, no headers are hidden."
13846 (save-excursion
13847 ;; Make sure we start in a summary buffer.
13848 (unless (eq major-mode 'gnus-summary-mode)
13849 (set-buffer gnus-summary-buffer))
13850 (setq gnus-summary-buffer (current-buffer))
13851 ;; Make sure the connection to the server is alive.
13852 (unless (gnus-server-opened
13853 (gnus-find-method-for-group gnus-newsgroup-name))
13854 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
13855 (gnus-request-group gnus-newsgroup-name t))
13856 (let* ((article (if header (mail-header-number header) article))
13857 (summary-buffer (current-buffer))
13858 (internal-hook gnus-article-internal-prepare-hook)
13859 (group gnus-newsgroup-name)
13860 result)
13861 (save-excursion
13862 (gnus-article-setup-buffer)
13863 (set-buffer gnus-article-buffer)
13864 ;; Deactivate active regions.
13865 (when (and (boundp 'transient-mark-mode)
13866 transient-mark-mode)
13867 (setq mark-active nil))
13868 (if (not (setq result (let ((buffer-read-only nil))
13869 (gnus-request-article-this-buffer
13870 article group))))
13871 ;; There is no such article.
13872 (save-excursion
13873 (when (and (numberp article)
13874 (not (memq article gnus-newsgroup-sparse)))
13875 (setq gnus-article-current
13876 (cons gnus-newsgroup-name article))
13877 (set-buffer gnus-summary-buffer)
13878 (setq gnus-current-article article)
13879 (gnus-summary-mark-article article gnus-canceled-mark))
13880 (unless (memq article gnus-newsgroup-sparse)
13881 (gnus-error
13882 1 "No such article (may have expired or been canceled)")))
13883 (if (or (eq result 'pseudo) (eq result 'nneething))
13884 (progn
13885 (save-excursion
13886 (set-buffer summary-buffer)
13887 (setq gnus-last-article gnus-current-article
13888 gnus-newsgroup-history (cons gnus-current-article
13889 gnus-newsgroup-history)
13890 gnus-current-article 0
13891 gnus-current-headers nil
13892 gnus-article-current nil)
13893 (if (eq result 'nneething)
13894 (gnus-configure-windows 'summary)
13895 (gnus-configure-windows 'article))
13896 (gnus-set-global-variables))
13897 (gnus-set-mode-line 'article))
13898 ;; The result from the `request' was an actual article -
13899 ;; or at least some text that is now displayed in the
13900 ;; article buffer.
13901 (if (and (numberp article)
13902 (not (eq article gnus-current-article)))
13903 ;; Seems like a new article has been selected.
13904 ;; `gnus-current-article' must be an article number.
13905 (save-excursion
13906 (set-buffer summary-buffer)
13907 (setq gnus-last-article gnus-current-article
13908 gnus-newsgroup-history (cons gnus-current-article
13909 gnus-newsgroup-history)
13910 gnus-current-article article
13911 gnus-current-headers
13912 (gnus-summary-article-header gnus-current-article)
13913 gnus-article-current
13914 (cons gnus-newsgroup-name gnus-current-article))
13915 (unless (vectorp gnus-current-headers)
13916 (setq gnus-current-headers nil))
13917 (gnus-summary-show-thread)
13918 (run-hooks 'gnus-mark-article-hook)
13919 (gnus-set-mode-line 'summary)
13920 (and (gnus-visual-p 'article-highlight 'highlight)
13921 (run-hooks 'gnus-visual-mark-article-hook))
13922 ;; Set the global newsgroup variables here.
13923 ;; Suggested by Jim Sisolak
13924 ;; <sisolak@trans4.neep.wisc.edu>.
13925 (gnus-set-global-variables)
13926 (setq gnus-have-all-headers
13927 (or all-headers gnus-show-all-headers))
13928 (and gnus-use-cache
13929 (vectorp (gnus-summary-article-header article))
13930 (gnus-cache-possibly-enter-article
13931 group article
13932 (gnus-summary-article-header article)
13933 (memq article gnus-newsgroup-marked)
13934 (memq article gnus-newsgroup-dormant)
13935 (memq article gnus-newsgroup-unreads)))))
13936 (when (or (numberp article)
13937 (stringp article))
13938 ;; Hooks for getting information from the article.
13939 ;; This hook must be called before being narrowed.
13940 (let (buffer-read-only)
13941 (run-hooks 'internal-hook)
13942 (run-hooks 'gnus-article-prepare-hook)
13943 ;; Decode MIME message.
13944 (if gnus-show-mime
13945 (if (or (not gnus-strict-mime)
13946 (gnus-fetch-field "Mime-Version"))
13947 (funcall gnus-show-mime-method)
13948 (funcall gnus-decode-encoded-word-method)))
13949 ;; Perform the article display hooks.
13950 (run-hooks 'gnus-article-display-hook))
13951 ;; Do page break.
13952 (goto-char (point-min))
13953 (and gnus-break-pages (gnus-narrow-to-page)))
13954 (gnus-set-mode-line 'article)
13955 (gnus-configure-windows 'article)
13956 (goto-char (point-min))
13957 t))))))
13959 (defun gnus-article-show-all-headers ()
13960 "Show all article headers in article mode buffer."
13961 (save-excursion
13962 (gnus-article-setup-buffer)
13963 (set-buffer gnus-article-buffer)
13964 (let ((buffer-read-only nil))
13965 (gnus-unhide-text (point-min) (point-max)))))
13967 (defun gnus-article-hide-headers-if-wanted ()
13968 "Hide unwanted headers if `gnus-have-all-headers' is nil.
13969 Provided for backwards compatibility."
13970 (or (save-excursion (set-buffer gnus-summary-buffer) gnus-have-all-headers)
13971 gnus-inhibit-hiding
13972 (gnus-article-hide-headers)))
13974 (defsubst gnus-article-header-rank ()
13975 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
13976 (let ((list gnus-sorted-header-list)
13977 (i 0))
13978 (while list
13979 (when (looking-at (car list))
13980 (setq list nil))
13981 (setq list (cdr list))
13982 (incf i))
13985 (defun gnus-article-hide-headers (&optional arg delete)
13986 "Toggle whether to hide unwanted headers and possibly sort them as well.
13987 If given a negative prefix, always show; if given a positive prefix,
13988 always hide."
13989 (interactive (gnus-hidden-arg))
13990 (if (gnus-article-check-hidden-text 'headers arg)
13991 ;; Show boring headers as well.
13992 (gnus-article-show-hidden-text 'boring-headers)
13993 ;; This function might be inhibited.
13994 (unless gnus-inhibit-hiding
13995 (save-excursion
13996 (set-buffer gnus-article-buffer)
13997 (save-restriction
13998 (let ((buffer-read-only nil)
13999 (props (nconc (list 'gnus-type 'headers)
14000 gnus-hidden-properties))
14001 (max (1+ (length gnus-sorted-header-list)))
14002 (ignored (when (not (stringp gnus-visible-headers))
14003 (cond ((stringp gnus-ignored-headers)
14004 gnus-ignored-headers)
14005 ((listp gnus-ignored-headers)
14006 (mapconcat 'identity gnus-ignored-headers
14007 "\\|")))))
14008 (visible
14009 (cond ((stringp gnus-visible-headers)
14010 gnus-visible-headers)
14011 ((and gnus-visible-headers
14012 (listp gnus-visible-headers))
14013 (mapconcat 'identity gnus-visible-headers "\\|"))))
14014 (inhibit-point-motion-hooks t)
14015 want-list beg)
14016 ;; First we narrow to just the headers.
14017 (widen)
14018 (goto-char (point-min))
14019 ;; Hide any "From " lines at the beginning of (mail) articles.
14020 (while (looking-at "From ")
14021 (forward-line 1))
14022 (unless (bobp)
14023 (if delete
14024 (delete-region (point-min) (point))
14025 (gnus-hide-text (point-min) (point) props)))
14026 ;; Then treat the rest of the header lines.
14027 (narrow-to-region
14028 (point)
14029 (progn (search-forward "\n\n" nil t) (forward-line -1) (point)))
14030 ;; Then we use the two regular expressions
14031 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
14032 ;; select which header lines is to remain visible in the
14033 ;; article buffer.
14034 (goto-char (point-min))
14035 (while (re-search-forward "^[^ \t]*:" nil t)
14036 (beginning-of-line)
14037 ;; We add the headers we want to keep to a list and delete
14038 ;; them from the buffer.
14039 (gnus-put-text-property
14040 (point) (1+ (point)) 'message-rank
14041 (if (or (and visible (looking-at visible))
14042 (and ignored
14043 (not (looking-at ignored))))
14044 (gnus-article-header-rank)
14045 (+ 2 max)))
14046 (forward-line 1))
14047 (message-sort-headers-1)
14048 (when (setq beg (text-property-any
14049 (point-min) (point-max) 'message-rank (+ 2 max)))
14050 ;; We make the unwanted headers invisible.
14051 (if delete
14052 (delete-region beg (point-max))
14053 ;; Suggested by Sudish Joseph <joseph@cis.ohio-state.edu>.
14054 (gnus-hide-text-type beg (point-max) 'headers))
14055 ;; Work around XEmacs lossage.
14056 (gnus-put-text-property (point-min) beg 'invisible nil))))))))
14058 (defun gnus-article-hide-boring-headers (&optional arg)
14059 "Toggle hiding of headers that aren't very interesting.
14060 If given a negative prefix, always show; if given a positive prefix,
14061 always hide."
14062 (interactive (gnus-hidden-arg))
14063 (unless (gnus-article-check-hidden-text 'boring-headers arg)
14064 (save-excursion
14065 (set-buffer gnus-article-buffer)
14066 (save-restriction
14067 (let ((buffer-read-only nil)
14068 (list gnus-boring-article-headers)
14069 (inhibit-point-motion-hooks t)
14070 elem)
14071 (nnheader-narrow-to-headers)
14072 (while list
14073 (setq elem (pop list))
14074 (goto-char (point-min))
14075 (cond
14076 ;; Hide empty headers.
14077 ((eq elem 'empty)
14078 (while (re-search-forward "^[^:]+:[ \t]\n[^ \t]" nil t)
14079 (forward-line -1)
14080 (gnus-hide-text-type
14081 (progn (beginning-of-line) (point))
14082 (progn
14083 (end-of-line)
14084 (if (re-search-forward "^[^ \t]" nil t)
14085 (match-beginning 0)
14086 (point-max)))
14087 'boring-headers)))
14088 ;; Hide boring Newsgroups header.
14089 ((eq elem 'newsgroups)
14090 (when (equal (message-fetch-field "newsgroups")
14091 (gnus-group-real-name gnus-newsgroup-name))
14092 (gnus-article-hide-header "newsgroups")))
14093 ((eq elem 'followup-to)
14094 (when (equal (message-fetch-field "followup-to")
14095 (message-fetch-field "newsgroups"))
14096 (gnus-article-hide-header "followup-to")))
14097 ((eq elem 'reply-to)
14098 (let ((from (message-fetch-field "from"))
14099 (reply-to (message-fetch-field "reply-to")))
14100 (when (and
14101 from reply-to
14102 (equal
14103 (nth 1 (funcall gnus-extract-address-components from))
14104 (nth 1 (funcall gnus-extract-address-components
14105 reply-to))))
14106 (gnus-article-hide-header "reply-to"))))
14107 ((eq elem 'date)
14108 (let ((date (message-fetch-field "date")))
14109 (when (and date
14110 (< (gnus-days-between date (current-time-string))
14112 (gnus-article-hide-header "date")))))))))))
14114 (defun gnus-article-hide-header (header)
14115 (save-excursion
14116 (goto-char (point-min))
14117 (when (re-search-forward (concat "^" header ":") nil t)
14118 (gnus-hide-text-type
14119 (progn (beginning-of-line) (point))
14120 (progn
14121 (end-of-line)
14122 (if (re-search-forward "^[^ \t]" nil t)
14123 (match-beginning 0)
14124 (point-max)))
14125 'boring-headers))))
14127 ;; Written by Per Abrahamsen <amanda@iesd.auc.dk>.
14128 (defun gnus-article-treat-overstrike ()
14129 "Translate overstrikes into bold text."
14130 (interactive)
14131 (save-excursion
14132 (set-buffer gnus-article-buffer)
14133 (let ((buffer-read-only nil))
14134 (while (search-forward "\b" nil t)
14135 (let ((next (following-char))
14136 (previous (char-after (- (point) 2))))
14137 (cond
14138 ((eq next previous)
14139 (gnus-put-text-property (- (point) 2) (point) 'invisible t)
14140 (gnus-put-text-property (point) (1+ (point)) 'face 'bold))
14141 ((eq next ?_)
14142 (gnus-put-text-property (1- (point)) (1+ (point)) 'invisible t)
14143 (gnus-put-text-property
14144 (- (point) 2) (1- (point)) 'face 'underline))
14145 ((eq previous ?_)
14146 (gnus-put-text-property (- (point) 2) (point) 'invisible t)
14147 (gnus-put-text-property
14148 (point) (1+ (point)) 'face 'underline))))))))
14150 (defun gnus-article-word-wrap ()
14151 "Format too long lines."
14152 (interactive)
14153 (save-excursion
14154 (set-buffer gnus-article-buffer)
14155 (let ((buffer-read-only nil))
14156 (widen)
14157 (goto-char (point-min))
14158 (search-forward "\n\n" nil t)
14159 (end-of-line 1)
14160 (let ((paragraph-start "^[>|#:<;* ]*[ \t]*$")
14161 (adaptive-fill-regexp "[ \t]*\\([|#:<;>*]+ *\\)?")
14162 (adaptive-fill-mode t))
14163 (while (not (eobp))
14164 (and (>= (current-column) (min fill-column (window-width)))
14165 (/= (preceding-char) ?:)
14166 (fill-paragraph nil))
14167 (end-of-line 2))))))
14169 (defun gnus-article-remove-cr ()
14170 "Remove carriage returns from an article."
14171 (interactive)
14172 (save-excursion
14173 (set-buffer gnus-article-buffer)
14174 (let ((buffer-read-only nil))
14175 (goto-char (point-min))
14176 (while (search-forward "\r" nil t)
14177 (replace-match "" t t)))))
14179 (defun gnus-article-remove-trailing-blank-lines ()
14180 "Remove all trailing blank lines from the article."
14181 (interactive)
14182 (save-excursion
14183 (set-buffer gnus-article-buffer)
14184 (let ((buffer-read-only nil))
14185 (goto-char (point-max))
14186 (delete-region
14187 (point)
14188 (progn
14189 (while (looking-at "^[ \t]*$")
14190 (forward-line -1))
14191 (forward-line 1)
14192 (point))))))
14194 (defun gnus-article-display-x-face (&optional force)
14195 "Look for an X-Face header and display it if present."
14196 (interactive (list 'force))
14197 (save-excursion
14198 (set-buffer gnus-article-buffer)
14199 ;; Delete the old process, if any.
14200 (when (process-status "gnus-x-face")
14201 (delete-process "gnus-x-face"))
14202 (let ((inhibit-point-motion-hooks t)
14203 (case-fold-search nil)
14204 from)
14205 (save-restriction
14206 (nnheader-narrow-to-headers)
14207 (setq from (message-fetch-field "from"))
14208 (goto-char (point-min))
14209 (when (and gnus-article-x-face-command
14210 (or force
14211 ;; Check whether this face is censored.
14212 (not gnus-article-x-face-too-ugly)
14213 (and gnus-article-x-face-too-ugly from
14214 (not (string-match gnus-article-x-face-too-ugly
14215 from))))
14216 ;; Has to be present.
14217 (re-search-forward "^X-Face: " nil t))
14218 ;; We now have the area of the buffer where the X-Face is stored.
14219 (let ((beg (point))
14220 (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
14221 ;; We display the face.
14222 (if (symbolp gnus-article-x-face-command)
14223 ;; The command is a lisp function, so we call it.
14224 (if (gnus-functionp gnus-article-x-face-command)
14225 (funcall gnus-article-x-face-command beg end)
14226 (error "%s is not a function" gnus-article-x-face-command))
14227 ;; The command is a string, so we interpret the command
14228 ;; as a, well, command, and fork it off.
14229 (let ((process-connection-type nil))
14230 (process-kill-without-query
14231 (start-process
14232 "gnus-x-face" nil shell-file-name shell-command-switch
14233 gnus-article-x-face-command))
14234 (process-send-region "gnus-x-face" beg end)
14235 (process-send-eof "gnus-x-face")))))))))
14237 (defalias 'gnus-headers-decode-quoted-printable 'gnus-decode-rfc1522)
14238 (defun gnus-decode-rfc1522 ()
14239 "Hack to remove QP encoding from headers."
14240 (let ((case-fold-search t)
14241 (inhibit-point-motion-hooks t)
14242 (buffer-read-only nil)
14243 string)
14244 (save-restriction
14245 (narrow-to-region
14246 (goto-char (point-min))
14247 (or (search-forward "\n\n" nil t) (point-max)))
14249 (goto-char (point-min))
14250 (while (re-search-forward
14251 "=\\?iso-8859-1\\?q\\?\\([^?\t\n]*\\)\\?=" nil t)
14252 (setq string (match-string 1))
14253 (narrow-to-region (match-beginning 0) (match-end 0))
14254 (delete-region (point-min) (point-max))
14255 (insert string)
14256 (gnus-mime-decode-quoted-printable (goto-char (point-min)) (point-max))
14257 (subst-char-in-region (point-min) (point-max) ?_ ? )
14258 (widen)
14259 (goto-char (point-min))))))
14261 (defun gnus-article-de-quoted-unreadable (&optional force)
14262 "Do a naive translation of a quoted-printable-encoded article.
14263 This is in no way, shape or form meant as a replacement for real MIME
14264 processing, but is simply a stop-gap measure until MIME support is
14265 written.
14266 If FORCE, decode the article whether it is marked as quoted-printable
14267 or not."
14268 (interactive (list 'force))
14269 (save-excursion
14270 (set-buffer gnus-article-buffer)
14271 (let ((case-fold-search t)
14272 (buffer-read-only nil)
14273 (type (gnus-fetch-field "content-transfer-encoding")))
14274 (gnus-decode-rfc1522)
14275 (when (or force
14276 (and type (string-match "quoted-printable" (downcase type))))
14277 (goto-char (point-min))
14278 (search-forward "\n\n" nil 'move)
14279 (gnus-mime-decode-quoted-printable (point) (point-max))))))
14281 (defun gnus-mime-decode-quoted-printable (from to)
14282 "Decode Quoted-Printable in the region between FROM and TO."
14283 (interactive "r")
14284 (goto-char from)
14285 (while (search-forward "=" to t)
14286 (cond ((eq (following-char) ?\n)
14287 (delete-char -1)
14288 (delete-char 1))
14289 ((looking-at "[0-9A-F][0-9A-F]")
14290 (subst-char-in-region
14291 (1- (point)) (point) ?=
14292 (hexl-hex-string-to-integer
14293 (buffer-substring (point) (+ 2 (point)))))
14294 (delete-char 2))
14295 ((looking-at "=")
14296 (delete-char 1))
14297 ((gnus-message 3 "Malformed MIME quoted-printable message")))))
14299 (defun gnus-article-hide-pgp (&optional arg)
14300 "Toggle hiding of any PGP headers and signatures in the current article.
14301 If given a negative prefix, always show; if given a positive prefix,
14302 always hide."
14303 (interactive (gnus-hidden-arg))
14304 (unless (gnus-article-check-hidden-text 'pgp arg)
14305 (save-excursion
14306 (set-buffer gnus-article-buffer)
14307 (let ((props (nconc (list 'gnus-type 'pgp) gnus-hidden-properties))
14308 buffer-read-only beg end)
14309 (widen)
14310 (goto-char (point-min))
14311 ;; Hide the "header".
14312 (and (search-forward "\n-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
14313 (gnus-hide-text (match-beginning 0) (match-end 0) props))
14314 (setq beg (point))
14315 ;; Hide the actual signature.
14316 (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
14317 (setq end (1+ (match-beginning 0)))
14318 (gnus-hide-text
14320 (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
14321 (match-end 0)
14322 ;; Perhaps we shouldn't hide to the end of the buffer
14323 ;; if there is no end to the signature?
14324 (point-max))
14325 props))
14326 ;; Hide "- " PGP quotation markers.
14327 (when (and beg end)
14328 (narrow-to-region beg end)
14329 (goto-char (point-min))
14330 (while (re-search-forward "^- " nil t)
14331 (gnus-hide-text (match-beginning 0) (match-end 0) props))
14332 (widen))))))
14334 (defun gnus-article-hide-signature (&optional arg)
14335 "Hide the signature in the current article.
14336 If given a negative prefix, always show; if given a positive prefix,
14337 always hide."
14338 (interactive (gnus-hidden-arg))
14339 (unless (gnus-article-check-hidden-text 'signature arg)
14340 (save-excursion
14341 (set-buffer gnus-article-buffer)
14342 (save-restriction
14343 (let ((buffer-read-only nil))
14344 (when (gnus-narrow-to-signature)
14345 (gnus-hide-text-type (point-min) (point-max) 'signature)))))))
14347 (defun gnus-article-strip-leading-blank-lines ()
14348 "Remove all blank lines from the beginning of the article."
14349 (interactive)
14350 (save-excursion
14351 (set-buffer gnus-article-buffer)
14352 (let (buffer-read-only)
14353 (goto-char (point-min))
14354 (when (search-forward "\n\n" nil t)
14355 (while (looking-at "[ \t]$")
14356 (gnus-delete-line))))))
14358 (defvar mime::preview/content-list)
14359 (defvar mime::preview-content-info/point-min)
14360 (defun gnus-narrow-to-signature ()
14361 "Narrow to the signature."
14362 (widen)
14363 (if (and (boundp 'mime::preview/content-list)
14364 mime::preview/content-list)
14365 (let ((pcinfo (car (last mime::preview/content-list))))
14366 (condition-case ()
14367 (narrow-to-region
14368 (funcall (intern "mime::preview-content-info/point-min") pcinfo)
14369 (point-max))
14370 (error nil))))
14371 (goto-char (point-max))
14372 (when (re-search-backward gnus-signature-separator nil t)
14373 (forward-line 1)
14374 (when (or (null gnus-signature-limit)
14375 (and (numberp gnus-signature-limit)
14376 (< (- (point-max) (point)) gnus-signature-limit))
14377 (and (gnus-functionp gnus-signature-limit)
14378 (funcall gnus-signature-limit))
14379 (and (stringp gnus-signature-limit)
14380 (not (re-search-forward gnus-signature-limit nil t))))
14381 (narrow-to-region (point) (point-max))
14382 t)))
14384 (defun gnus-hidden-arg ()
14385 "Return the current prefix arg as a number, or 0 if no prefix."
14386 (list (if current-prefix-arg
14387 (prefix-numeric-value current-prefix-arg)
14388 0)))
14390 (defun gnus-article-check-hidden-text (type arg)
14391 "Return nil if hiding is necessary.
14392 Arg can be nil or a number. Nil and positive means hide, negative
14393 means show, 0 means toggle."
14394 (save-excursion
14395 (set-buffer gnus-article-buffer)
14396 (let ((hide (gnus-article-hidden-text-p type)))
14397 (cond
14398 ((or (null arg)
14399 (> arg 0))
14400 nil)
14401 ((< arg 0)
14402 (gnus-article-show-hidden-text type))
14404 (if (eq hide 'hidden)
14405 (gnus-article-show-hidden-text type)
14406 nil))))))
14408 (defun gnus-article-hidden-text-p (type)
14409 "Say whether the current buffer contains hidden text of type TYPE."
14410 (let ((pos (text-property-any (point-min) (point-max) 'gnus-type type)))
14411 (when pos
14412 (if (get-text-property pos 'invisible)
14413 'hidden
14414 'shown))))
14416 (defun gnus-article-hide (&optional arg force)
14417 "Hide all the gruft in the current article.
14418 This means that PGP stuff, signatures, cited text and (some)
14419 headers will be hidden.
14420 If given a prefix, show the hidden text instead."
14421 (interactive (list current-prefix-arg 'force))
14422 (gnus-article-hide-headers arg)
14423 (gnus-article-hide-pgp arg)
14424 (gnus-article-hide-citation-maybe arg force)
14425 (gnus-article-hide-signature arg))
14427 (defun gnus-article-show-hidden-text (type &optional hide)
14428 "Show all hidden text of type TYPE.
14429 If HIDE, hide the text instead."
14430 (save-excursion
14431 (set-buffer gnus-article-buffer)
14432 (let ((buffer-read-only nil)
14433 (inhibit-point-motion-hooks t)
14434 (beg (point-min)))
14435 (while (gnus-goto-char (text-property-any
14436 beg (point-max) 'gnus-type type))
14437 (setq beg (point))
14438 (forward-char)
14439 (if hide
14440 (gnus-hide-text beg (point) gnus-hidden-properties)
14441 (gnus-unhide-text beg (point)))
14442 (setq beg (point)))
14443 t)))
14445 (defvar gnus-article-time-units
14446 `((year . ,(* 365.25 24 60 60))
14447 (week . ,(* 7 24 60 60))
14448 (day . ,(* 24 60 60))
14449 (hour . ,(* 60 60))
14450 (minute . 60)
14451 (second . 1))
14452 "Mapping from time units to seconds.")
14454 (defun gnus-article-date-ut (&optional type highlight)
14455 "Convert DATE date to universal time in the current article.
14456 If TYPE is `local', convert to local time; if it is `lapsed', output
14457 how much time has lapsed since DATE."
14458 (interactive (list 'ut t))
14459 (let* ((header (or gnus-current-headers
14460 (gnus-summary-article-header) ""))
14461 (date (and (vectorp header) (mail-header-date header)))
14462 (date-regexp "^Date: \\|^X-Sent: ")
14463 (now (current-time))
14464 (inhibit-point-motion-hooks t)
14465 bface eface)
14466 (when (and date (not (string= date "")))
14467 (save-excursion
14468 (set-buffer gnus-article-buffer)
14469 (save-restriction
14470 (nnheader-narrow-to-headers)
14471 (let ((buffer-read-only nil))
14472 ;; Delete any old Date headers.
14473 (if (re-search-forward date-regexp nil t)
14474 (progn
14475 (setq bface (get-text-property (gnus-point-at-bol) 'face)
14476 eface (get-text-property (1- (gnus-point-at-eol))
14477 'face))
14478 (message-remove-header date-regexp t)
14479 (beginning-of-line))
14480 (goto-char (point-max)))
14481 (insert (gnus-make-date-line date type))
14482 ;; Do highlighting.
14483 (forward-line -1)
14484 (when (and (gnus-visual-p 'article-highlight 'highlight)
14485 (looking-at "\\([^:]+\\): *\\(.*\\)$"))
14486 (gnus-put-text-property (match-beginning 1) (match-end 1)
14487 'face bface)
14488 (gnus-put-text-property (match-beginning 2) (match-end 2)
14489 'face eface))))))))
14491 (defun gnus-make-date-line (date type)
14492 "Return a DATE line of TYPE."
14493 (cond
14494 ;; Convert to the local timezone. We have to slap a
14495 ;; `condition-case' round the calls to the timezone
14496 ;; functions since they aren't particularly resistant to
14497 ;; buggy dates.
14498 ((eq type 'local)
14499 (concat "Date: " (condition-case ()
14500 (timezone-make-date-arpa-standard date)
14501 (error date))
14502 "\n"))
14503 ;; Convert to Universal Time.
14504 ((eq type 'ut)
14505 (concat "Date: "
14506 (condition-case ()
14507 (timezone-make-date-arpa-standard date nil "UT")
14508 (error date))
14509 "\n"))
14510 ;; Get the original date from the article.
14511 ((eq type 'original)
14512 (concat "Date: " date "\n"))
14513 ;; Do an X-Sent lapsed format.
14514 ((eq type 'lapsed)
14515 ;; If the date is seriously mangled, the timezone
14516 ;; functions are liable to bug out, so we condition-case
14517 ;; the entire thing.
14518 (let* ((now (current-time))
14519 (real-time
14520 (condition-case ()
14521 (gnus-time-minus
14522 (gnus-encode-date
14523 (timezone-make-date-arpa-standard
14524 (current-time-string now)
14525 (current-time-zone now) "UT"))
14526 (gnus-encode-date
14527 (timezone-make-date-arpa-standard
14528 date nil "UT")))
14529 (error '(0 0))))
14530 (real-sec (+ (* (float (car real-time)) 65536)
14531 (cadr real-time)))
14532 (sec (abs real-sec))
14533 num prev)
14534 (cond
14535 ((equal real-time '(0 0))
14536 "X-Sent: Unknown\n")
14537 ((zerop sec)
14538 "X-Sent: Now\n")
14540 (concat
14541 "X-Sent: "
14542 ;; This is a bit convoluted, but basically we go
14543 ;; through the time units for years, weeks, etc,
14544 ;; and divide things to see whether that results
14545 ;; in positive answers.
14546 (mapconcat
14547 (lambda (unit)
14548 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
14549 ;; The (remaining) seconds are too few to
14550 ;; be divided into this time unit.
14552 ;; It's big enough, so we output it.
14553 (setq sec (- sec (* num (cdr unit))))
14554 (prog1
14555 (concat (if prev ", " "") (int-to-string
14556 (floor num))
14557 " " (symbol-name (car unit))
14558 (if (> num 1) "s" ""))
14559 (setq prev t))))
14560 gnus-article-time-units "")
14561 ;; If dates are odd, then it might appear like the
14562 ;; article was sent in the future.
14563 (if (> real-sec 0)
14564 " ago\n"
14565 " in the future\n"))))))
14567 (error "Unknown conversion type: %s" type))))
14569 (defun gnus-article-date-local (&optional highlight)
14570 "Convert the current article date to the local timezone."
14571 (interactive (list t))
14572 (gnus-article-date-ut 'local highlight))
14574 (defun gnus-article-date-original (&optional highlight)
14575 "Convert the current article date to what it was originally.
14576 This is only useful if you have used some other date conversion
14577 function and want to see what the date was before converting."
14578 (interactive (list t))
14579 (gnus-article-date-ut 'original highlight))
14581 (defun gnus-article-date-lapsed (&optional highlight)
14582 "Convert the current article date to time lapsed since it was sent."
14583 (interactive (list t))
14584 (gnus-article-date-ut 'lapsed highlight))
14586 (defun gnus-article-maybe-highlight ()
14587 "Do some article highlighting if `gnus-visual' is non-nil."
14588 (if (gnus-visual-p 'article-highlight 'highlight)
14589 (gnus-article-highlight-some)))
14591 ;;; Article savers.
14593 (defun gnus-output-to-rmail (file-name)
14594 "Append the current article to an Rmail file named FILE-NAME."
14595 (require 'rmail)
14596 ;; Most of these codes are borrowed from rmailout.el.
14597 (setq file-name (expand-file-name file-name))
14598 (setq rmail-default-rmail-file file-name)
14599 (let ((artbuf (current-buffer))
14600 (tmpbuf (get-buffer-create " *Gnus-output*")))
14601 (save-excursion
14602 (or (get-file-buffer file-name)
14603 (file-exists-p file-name)
14604 (if (gnus-yes-or-no-p
14605 (concat "\"" file-name "\" does not exist, create it? "))
14606 (let ((file-buffer (create-file-buffer file-name)))
14607 (save-excursion
14608 (set-buffer file-buffer)
14609 (rmail-insert-rmail-file-header)
14610 (let ((require-final-newline nil))
14611 (write-region (point-min) (point-max) file-name t 1)))
14612 (kill-buffer file-buffer))
14613 (error "Output file does not exist")))
14614 (set-buffer tmpbuf)
14615 (buffer-disable-undo (current-buffer))
14616 (erase-buffer)
14617 (insert-buffer-substring artbuf)
14618 (gnus-convert-article-to-rmail)
14619 ;; Decide whether to append to a file or to an Emacs buffer.
14620 (let ((outbuf (get-file-buffer file-name)))
14621 (if (not outbuf)
14622 (append-to-file (point-min) (point-max) file-name)
14623 ;; File has been visited, in buffer OUTBUF.
14624 (set-buffer outbuf)
14625 (let ((buffer-read-only nil)
14626 (msg (and (boundp 'rmail-current-message)
14627 (symbol-value 'rmail-current-message))))
14628 ;; If MSG is non-nil, buffer is in RMAIL mode.
14629 (if msg
14630 (progn (widen)
14631 (narrow-to-region (point-max) (point-max))))
14632 (insert-buffer-substring tmpbuf)
14633 (if msg
14634 (progn
14635 (goto-char (point-min))
14636 (widen)
14637 (search-backward "\^_")
14638 (narrow-to-region (point) (point-max))
14639 (goto-char (1+ (point-min)))
14640 (rmail-count-new-messages t)
14641 (rmail-show-message msg)))))))
14642 (kill-buffer tmpbuf)))
14644 (defun gnus-output-to-file (file-name)
14645 "Append the current article to a file named FILE-NAME."
14646 (let ((artbuf (current-buffer)))
14647 (nnheader-temp-write nil
14648 (insert-buffer-substring artbuf)
14649 ;; Append newline at end of the buffer as separator, and then
14650 ;; save it to file.
14651 (goto-char (point-max))
14652 (insert "\n")
14653 (append-to-file (point-min) (point-max) file-name))))
14655 (defun gnus-convert-article-to-rmail ()
14656 "Convert article in current buffer to Rmail message format."
14657 (let ((buffer-read-only nil))
14658 ;; Convert article directly into Babyl format.
14659 ;; Suggested by Rob Austein <sra@lcs.mit.edu>
14660 (goto-char (point-min))
14661 (insert "\^L\n0, unseen,,\n*** EOOH ***\n")
14662 (while (search-forward "\n\^_" nil t) ;single char
14663 (replace-match "\n^_" t t)) ;2 chars: "^" and "_"
14664 (goto-char (point-max))
14665 (insert "\^_")))
14667 (defun gnus-narrow-to-page (&optional arg)
14668 "Narrow the article buffer to a page.
14669 If given a numerical ARG, move forward ARG pages."
14670 (interactive "P")
14671 (setq arg (if arg (prefix-numeric-value arg) 0))
14672 (save-excursion
14673 (set-buffer gnus-article-buffer)
14674 (goto-char (point-min))
14675 (widen)
14676 (when (gnus-visual-p 'page-marker)
14677 (let ((buffer-read-only nil))
14678 (gnus-remove-text-with-property 'gnus-prev)
14679 (gnus-remove-text-with-property 'gnus-next)))
14680 (when
14681 (cond ((< arg 0)
14682 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
14683 ((> arg 0)
14684 (re-search-forward page-delimiter nil 'move arg)))
14685 (goto-char (match-end 0)))
14686 (narrow-to-region
14687 (point)
14688 (if (re-search-forward page-delimiter nil 'move)
14689 (match-beginning 0)
14690 (point)))
14691 (when (and (gnus-visual-p 'page-marker)
14692 (not (= (point-min) 1)))
14693 (save-excursion
14694 (goto-char (point-min))
14695 (gnus-insert-prev-page-button)))
14696 (when (and (gnus-visual-p 'page-marker)
14697 (not (= (1- (point-max)) (buffer-size))))
14698 (save-excursion
14699 (goto-char (point-max))
14700 (gnus-insert-next-page-button)))))
14702 ;; Article mode commands
14704 (defun gnus-article-goto-next-page ()
14705 "Show the next page of the article."
14706 (interactive)
14707 (when (gnus-article-next-page)
14708 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
14710 (defun gnus-article-goto-prev-page ()
14711 "Show the next page of the article."
14712 (interactive)
14713 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))
14714 (gnus-article-prev-page nil)))
14716 (defun gnus-article-next-page (&optional lines)
14717 "Show the next page of the current article.
14718 If end of article, return non-nil. Otherwise return nil.
14719 Argument LINES specifies lines to be scrolled up."
14720 (interactive "p")
14721 (move-to-window-line -1)
14722 ;; Fixed by enami@ptgd.sony.co.jp (enami tsugutomo)
14723 (if (save-excursion
14724 (end-of-line)
14725 (and (pos-visible-in-window-p) ;Not continuation line.
14726 (eobp)))
14727 ;; Nothing in this page.
14728 (if (or (not gnus-break-pages)
14729 (save-excursion
14730 (save-restriction
14731 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
14732 t ;Nothing more.
14733 (gnus-narrow-to-page 1) ;Go to next page.
14734 nil)
14735 ;; More in this page.
14736 (condition-case ()
14737 (scroll-up lines)
14738 (end-of-buffer
14739 ;; Long lines may cause an end-of-buffer error.
14740 (goto-char (point-max))))
14741 (move-to-window-line 0)
14742 nil))
14744 (defun gnus-article-prev-page (&optional lines)
14745 "Show previous page of current article.
14746 Argument LINES specifies lines to be scrolled down."
14747 (interactive "p")
14748 (move-to-window-line 0)
14749 (if (and gnus-break-pages
14750 (bobp)
14751 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
14752 (progn
14753 (gnus-narrow-to-page -1) ;Go to previous page.
14754 (goto-char (point-max))
14755 (recenter -1))
14756 (prog1
14757 (condition-case ()
14758 (scroll-down lines)
14759 (error nil))
14760 (move-to-window-line 0))))
14762 (defun gnus-article-refer-article ()
14763 "Read article specified by message-id around point."
14764 (interactive)
14765 (let ((point (point)))
14766 (search-forward ">" nil t) ;Move point to end of "<....>".
14767 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
14768 (let ((message-id (match-string 1)))
14769 (goto-char point)
14770 (set-buffer gnus-summary-buffer)
14771 (gnus-summary-refer-article message-id))
14772 (goto-char (point))
14773 (error "No references around point"))))
14775 (defun gnus-article-show-summary ()
14776 "Reconfigure windows to show summary buffer."
14777 (interactive)
14778 (gnus-configure-windows 'article)
14779 (gnus-summary-goto-subject gnus-current-article))
14781 (defun gnus-article-describe-briefly ()
14782 "Describe article mode commands briefly."
14783 (interactive)
14784 (gnus-message 6
14785 (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
14787 (defun gnus-article-summary-command ()
14788 "Execute the last keystroke in the summary buffer."
14789 (interactive)
14790 (let ((obuf (current-buffer))
14791 (owin (current-window-configuration))
14792 func)
14793 (switch-to-buffer gnus-summary-buffer 'norecord)
14794 (setq func (lookup-key (current-local-map) (this-command-keys)))
14795 (call-interactively func)
14796 (set-buffer obuf)
14797 (set-window-configuration owin)
14798 (set-window-point (get-buffer-window (current-buffer)) (point))))
14800 (defun gnus-article-summary-command-nosave ()
14801 "Execute the last keystroke in the summary buffer."
14802 (interactive)
14803 (let (func)
14804 (pop-to-buffer gnus-summary-buffer 'norecord)
14805 (setq func (lookup-key (current-local-map) (this-command-keys)))
14806 (call-interactively func)))
14808 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
14809 "Read a summary buffer key sequence and execute it from the article buffer."
14810 (interactive "P")
14811 (let ((nosaves
14812 '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
14813 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
14814 "=" "^" "\M-^" "|"))
14815 (nosave-but-article
14816 '("A\r"))
14817 keys)
14818 (save-excursion
14819 (set-buffer gnus-summary-buffer)
14820 (push (or key last-command-event) unread-command-events)
14821 (setq keys (read-key-sequence nil)))
14822 (message "")
14824 (if (or (member keys nosaves)
14825 (member keys nosave-but-article))
14826 (let (func)
14827 (save-window-excursion
14828 (pop-to-buffer gnus-summary-buffer 'norecord)
14829 (setq func (lookup-key (current-local-map) keys)))
14830 (if (not func)
14831 (ding)
14832 (set-buffer gnus-summary-buffer)
14833 (call-interactively func))
14834 (when (member keys nosave-but-article)
14835 (pop-to-buffer gnus-article-buffer 'norecord)))
14836 (let ((obuf (current-buffer))
14837 (owin (current-window-configuration))
14838 (opoint (point))
14839 func in-buffer)
14840 (if not-restore-window
14841 (pop-to-buffer gnus-summary-buffer 'norecord)
14842 (switch-to-buffer gnus-summary-buffer 'norecord))
14843 (setq in-buffer (current-buffer))
14844 (if (setq func (lookup-key (current-local-map) keys))
14845 (call-interactively func)
14846 (ding))
14847 (when (eq in-buffer (current-buffer))
14848 (set-buffer obuf)
14849 (unless not-restore-window
14850 (set-window-configuration owin))
14851 (set-window-point (get-buffer-window (current-buffer)) opoint))))))
14855 ;;; Kill file handling.
14858 ;;;###autoload
14859 (defalias 'gnus-batch-kill 'gnus-batch-score)
14860 ;;;###autoload
14861 (defun gnus-batch-score ()
14862 "Run batched scoring.
14863 Usage: emacs -batch -l gnus -f gnus-batch-score <newsgroups> ...
14864 Newsgroups is a list of strings in Bnews format. If you want to score
14865 the comp hierarchy, you'd say \"comp.all\". If you would not like to
14866 score the alt hierarchy, you'd say \"!alt.all\"."
14867 (interactive)
14868 (let* ((yes-and-no
14869 (gnus-newsrc-parse-options
14870 (apply (function concat)
14871 (mapcar (lambda (g) (concat g " "))
14872 command-line-args-left))))
14873 (gnus-expert-user t)
14874 (nnmail-spool-file nil)
14875 (gnus-use-dribble-file nil)
14876 (yes (car yes-and-no))
14877 (no (cdr yes-and-no))
14878 group newsrc entry
14879 ;; Disable verbose message.
14880 gnus-novice-user gnus-large-newsgroup)
14881 ;; Eat all arguments.
14882 (setq command-line-args-left nil)
14883 ;; Start Gnus.
14884 (gnus)
14885 ;; Apply kills to specified newsgroups in command line arguments.
14886 (setq newsrc (cdr gnus-newsrc-alist))
14887 (while newsrc
14888 (setq group (caar newsrc))
14889 (setq entry (gnus-gethash group gnus-newsrc-hashtb))
14890 (if (and (<= (nth 1 (car newsrc)) gnus-level-subscribed)
14891 (and (car entry)
14892 (or (eq (car entry) t)
14893 (not (zerop (car entry)))))
14894 (if yes (string-match yes group) t)
14895 (or (null no) (not (string-match no group))))
14896 (progn
14897 (gnus-summary-read-group group nil t nil t)
14898 (and (eq (current-buffer) (get-buffer gnus-summary-buffer))
14899 (gnus-summary-exit))))
14900 (setq newsrc (cdr newsrc)))
14901 ;; Exit Emacs.
14902 (switch-to-buffer gnus-group-buffer)
14903 (gnus-group-save-newsrc)))
14905 (defun gnus-apply-kill-file ()
14906 "Apply a kill file to the current newsgroup.
14907 Returns the number of articles marked as read."
14908 (if (or (file-exists-p (gnus-newsgroup-kill-file nil))
14909 (file-exists-p (gnus-newsgroup-kill-file gnus-newsgroup-name)))
14910 (gnus-apply-kill-file-internal)
14913 (defun gnus-kill-save-kill-buffer ()
14914 (let ((file (gnus-newsgroup-kill-file gnus-newsgroup-name)))
14915 (when (get-file-buffer file)
14916 (save-excursion
14917 (set-buffer (get-file-buffer file))
14918 (and (buffer-modified-p) (save-buffer))
14919 (kill-buffer (current-buffer))))))
14921 (defvar gnus-kill-file-name "KILL"
14922 "Suffix of the kill files.")
14924 (defun gnus-newsgroup-kill-file (newsgroup)
14925 "Return the name of a kill file name for NEWSGROUP.
14926 If NEWSGROUP is nil, return the global kill file name instead."
14927 (cond
14928 ;; The global KILL file is placed at top of the directory.
14929 ((or (null newsgroup)
14930 (string-equal newsgroup ""))
14931 (expand-file-name gnus-kill-file-name
14932 gnus-kill-files-directory))
14933 ;; Append ".KILL" to newsgroup name.
14934 ((gnus-use-long-file-name 'not-kill)
14935 (expand-file-name (concat (gnus-newsgroup-savable-name newsgroup)
14936 "." gnus-kill-file-name)
14937 gnus-kill-files-directory))
14938 ;; Place "KILL" under the hierarchical directory.
14940 (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
14941 "/" gnus-kill-file-name)
14942 gnus-kill-files-directory))))
14946 ;;; Dribble file
14949 (defvar gnus-dribble-ignore nil)
14950 (defvar gnus-dribble-eval-file nil)
14952 (defun gnus-dribble-file-name ()
14953 "Return the dribble file for the current .newsrc."
14954 (concat
14955 (if gnus-dribble-directory
14956 (concat (file-name-as-directory gnus-dribble-directory)
14957 (file-name-nondirectory gnus-current-startup-file))
14958 gnus-current-startup-file)
14959 "-dribble"))
14961 (defun gnus-dribble-enter (string)
14962 "Enter STRING into the dribble buffer."
14963 (if (and (not gnus-dribble-ignore)
14964 gnus-dribble-buffer
14965 (buffer-name gnus-dribble-buffer))
14966 (let ((obuf (current-buffer)))
14967 (set-buffer gnus-dribble-buffer)
14968 (insert string "\n")
14969 (set-window-point (get-buffer-window (current-buffer)) (point-max))
14970 (bury-buffer gnus-dribble-buffer)
14971 (set-buffer obuf))))
14973 (defun gnus-dribble-read-file ()
14974 "Read the dribble file from disk."
14975 (let ((dribble-file (gnus-dribble-file-name)))
14976 (save-excursion
14977 (set-buffer (setq gnus-dribble-buffer
14978 (get-buffer-create
14979 (file-name-nondirectory dribble-file))))
14980 (gnus-add-current-to-buffer-list)
14981 (erase-buffer)
14982 (setq buffer-file-name dribble-file)
14983 (auto-save-mode t)
14984 (buffer-disable-undo (current-buffer))
14985 (bury-buffer (current-buffer))
14986 (set-buffer-modified-p nil)
14987 (let ((auto (make-auto-save-file-name))
14988 (gnus-dribble-ignore t)
14989 modes)
14990 (when (or (file-exists-p auto) (file-exists-p dribble-file))
14991 ;; Load whichever file is newest -- the auto save file
14992 ;; or the "real" file.
14993 (if (file-newer-than-file-p auto dribble-file)
14994 (insert-file-contents auto)
14995 (insert-file-contents dribble-file))
14996 (unless (zerop (buffer-size))
14997 (set-buffer-modified-p t))
14998 ;; Set the file modes to reflect the .newsrc file modes.
14999 (save-buffer)
15000 (when (and (file-exists-p gnus-current-startup-file)
15001 (setq modes (file-modes gnus-current-startup-file)))
15002 (set-file-modes dribble-file modes))
15003 ;; Possibly eval the file later.
15004 (when (gnus-y-or-n-p
15005 "Auto-save file exists. Do you want to read it? ")
15006 (setq gnus-dribble-eval-file t)))))))
15008 (defun gnus-dribble-eval-file ()
15009 (when gnus-dribble-eval-file
15010 (setq gnus-dribble-eval-file nil)
15011 (save-excursion
15012 (let ((gnus-dribble-ignore t))
15013 (set-buffer gnus-dribble-buffer)
15014 (eval-buffer (current-buffer))))))
15016 (defun gnus-dribble-delete-file ()
15017 (when (file-exists-p (gnus-dribble-file-name))
15018 (delete-file (gnus-dribble-file-name)))
15019 (when gnus-dribble-buffer
15020 (save-excursion
15021 (set-buffer gnus-dribble-buffer)
15022 (let ((auto (make-auto-save-file-name)))
15023 (if (file-exists-p auto)
15024 (delete-file auto))
15025 (erase-buffer)
15026 (set-buffer-modified-p nil)))))
15028 (defun gnus-dribble-save ()
15029 (when (and gnus-dribble-buffer
15030 (buffer-name gnus-dribble-buffer))
15031 (save-excursion
15032 (set-buffer gnus-dribble-buffer)
15033 (save-buffer))))
15035 (defun gnus-dribble-clear ()
15036 (when (gnus-buffer-exists-p gnus-dribble-buffer)
15037 (save-excursion
15038 (set-buffer gnus-dribble-buffer)
15039 (erase-buffer)
15040 (set-buffer-modified-p nil)
15041 (setq buffer-saved-size (buffer-size)))))
15045 ;;; Server Communication
15048 (defun gnus-start-news-server (&optional confirm)
15049 "Open a method for getting news.
15050 If CONFIRM is non-nil, the user will be asked for an NNTP server."
15051 (let (how)
15052 (if gnus-current-select-method
15053 ;; Stream is already opened.
15055 ;; Open NNTP server.
15056 (if (null gnus-nntp-service) (setq gnus-nntp-server nil))
15057 (if confirm
15058 (progn
15059 ;; Read server name with completion.
15060 (setq gnus-nntp-server
15061 (completing-read "NNTP server: "
15062 (mapcar (lambda (server) (list server))
15063 (cons (list gnus-nntp-server)
15064 gnus-secondary-servers))
15065 nil nil gnus-nntp-server))))
15067 (if (and gnus-nntp-server
15068 (stringp gnus-nntp-server)
15069 (not (string= gnus-nntp-server "")))
15070 (setq gnus-select-method
15071 (cond ((or (string= gnus-nntp-server "")
15072 (string= gnus-nntp-server "::"))
15073 (list 'nnspool (system-name)))
15074 ((string-match "^:" gnus-nntp-server)
15075 (list 'nnmh gnus-nntp-server
15076 (list 'nnmh-directory
15077 (file-name-as-directory
15078 (expand-file-name
15079 (concat "~/" (substring
15080 gnus-nntp-server 1)))))
15081 (list 'nnmh-get-new-mail nil)))
15083 (list 'nntp gnus-nntp-server)))))
15085 (setq how (car gnus-select-method))
15086 (cond ((eq how 'nnspool)
15087 (require 'nnspool)
15088 (gnus-message 5 "Looking up local news spool..."))
15089 ((eq how 'nnmh)
15090 (require 'nnmh)
15091 (gnus-message 5 "Looking up mh spool..."))
15093 (require 'nntp)))
15094 (setq gnus-current-select-method gnus-select-method)
15095 (run-hooks 'gnus-open-server-hook)
15097 ;; gnus-open-server-hook might have opened it
15098 (gnus-server-opened gnus-select-method)
15099 (gnus-open-server gnus-select-method)
15100 (gnus-y-or-n-p
15101 (format
15102 "%s (%s) open error: '%s'. Continue? "
15103 (car gnus-select-method) (cadr gnus-select-method)
15104 (gnus-status-message gnus-select-method)))
15105 (gnus-error 1 "Couldn't open server on %s"
15106 (nth 1 gnus-select-method))))))
15108 (defun gnus-check-group (group)
15109 "Try to make sure that the server where GROUP exists is alive."
15110 (let ((method (gnus-find-method-for-group group)))
15111 (or (gnus-server-opened method)
15112 (gnus-open-server method))))
15114 (defun gnus-check-server (&optional method silent)
15115 "Check whether the connection to METHOD is down.
15116 If METHOD is nil, use `gnus-select-method'.
15117 If it is down, start it up (again)."
15118 (let ((method (or method gnus-select-method)))
15119 ;; Transform virtual server names into select methods.
15120 (when (stringp method)
15121 (setq method (gnus-server-to-method method)))
15122 (if (gnus-server-opened method)
15123 ;; The stream is already opened.
15125 ;; Open the server.
15126 (unless silent
15127 (gnus-message 5 "Opening %s server%s..." (car method)
15128 (if (equal (nth 1 method) "") ""
15129 (format " on %s" (nth 1 method)))))
15130 (run-hooks 'gnus-open-server-hook)
15131 (prog1
15132 (gnus-open-server method)
15133 (unless silent
15134 (message ""))))))
15136 (defun gnus-get-function (method function &optional noerror)
15137 "Return a function symbol based on METHOD and FUNCTION."
15138 ;; Translate server names into methods.
15139 (unless method
15140 (error "Attempted use of a nil select method"))
15141 (when (stringp method)
15142 (setq method (gnus-server-to-method method)))
15143 (let ((func (intern (format "%s-%s" (car method) function))))
15144 ;; If the functions isn't bound, we require the backend in
15145 ;; question.
15146 (unless (fboundp func)
15147 (require (car method))
15148 (when (and (not (fboundp func))
15149 (not noerror))
15150 ;; This backend doesn't implement this function.
15151 (error "No such function: %s" func)))
15152 func))
15156 ;;; Interface functions to the backends.
15159 (defun gnus-open-server (method)
15160 "Open a connection to METHOD."
15161 (when (stringp method)
15162 (setq method (gnus-server-to-method method)))
15163 (let ((elem (assoc method gnus-opened-servers)))
15164 ;; If this method was previously denied, we just return nil.
15165 (if (eq (nth 1 elem) 'denied)
15166 (progn
15167 (gnus-message 1 "Denied server")
15168 nil)
15169 ;; Open the server.
15170 (let ((result
15171 (funcall (gnus-get-function method 'open-server)
15172 (nth 1 method) (nthcdr 2 method))))
15173 ;; If this hasn't been opened before, we add it to the list.
15174 (unless elem
15175 (setq elem (list method nil)
15176 gnus-opened-servers (cons elem gnus-opened-servers)))
15177 ;; Set the status of this server.
15178 (setcar (cdr elem) (if result 'ok 'denied))
15179 ;; Return the result from the "open" call.
15180 result))))
15182 (defun gnus-close-server (method)
15183 "Close the connection to METHOD."
15184 (when (stringp method)
15185 (setq method (gnus-server-to-method method)))
15186 (funcall (gnus-get-function method 'close-server) (nth 1 method)))
15188 (defun gnus-request-list (method)
15189 "Request the active file from METHOD."
15190 (when (stringp method)
15191 (setq method (gnus-server-to-method method)))
15192 (funcall (gnus-get-function method 'request-list) (nth 1 method)))
15194 (defun gnus-request-list-newsgroups (method)
15195 "Request the newsgroups file from METHOD."
15196 (when (stringp method)
15197 (setq method (gnus-server-to-method method)))
15198 (funcall (gnus-get-function method 'request-list-newsgroups) (nth 1 method)))
15200 (defun gnus-request-newgroups (date method)
15201 "Request all new groups since DATE from METHOD."
15202 (when (stringp method)
15203 (setq method (gnus-server-to-method method)))
15204 (funcall (gnus-get-function method 'request-newgroups)
15205 date (nth 1 method)))
15207 (defun gnus-server-opened (method)
15208 "Check whether a connection to METHOD has been opened."
15209 (when (stringp method)
15210 (setq method (gnus-server-to-method method)))
15211 (funcall (gnus-get-function method 'server-opened) (nth 1 method)))
15213 (defun gnus-status-message (method)
15214 "Return the status message from METHOD.
15215 If METHOD is a string, it is interpreted as a group name. The method
15216 this group uses will be queried."
15217 (let ((method (if (stringp method) (gnus-find-method-for-group method)
15218 method)))
15219 (funcall (gnus-get-function method 'status-message) (nth 1 method))))
15221 (defun gnus-request-group (group &optional dont-check method)
15222 "Request GROUP. If DONT-CHECK, no information is required."
15223 (let ((method (or method (gnus-find-method-for-group group))))
15224 (when (stringp method)
15225 (setq method (gnus-server-to-method method)))
15226 (funcall (gnus-get-function method 'request-group)
15227 (gnus-group-real-name group) (nth 1 method) dont-check)))
15229 (defun gnus-request-asynchronous (group &optional articles)
15230 "Request that GROUP behave asynchronously.
15231 ARTICLES is the `data' of the group."
15232 (let ((method (gnus-find-method-for-group group)))
15233 (funcall (gnus-get-function method 'request-asynchronous)
15234 (gnus-group-real-name group) (nth 1 method) articles)))
15236 (defun gnus-list-active-group (group)
15237 "Request active information on GROUP."
15238 (let ((method (gnus-find-method-for-group group))
15239 (func 'list-active-group))
15240 (when (gnus-check-backend-function func group)
15241 (funcall (gnus-get-function method func)
15242 (gnus-group-real-name group) (nth 1 method)))))
15244 (defun gnus-request-group-description (group)
15245 "Request a description of GROUP."
15246 (let ((method (gnus-find-method-for-group group))
15247 (func 'request-group-description))
15248 (when (gnus-check-backend-function func group)
15249 (funcall (gnus-get-function method func)
15250 (gnus-group-real-name group) (nth 1 method)))))
15252 (defun gnus-close-group (group)
15253 "Request the GROUP be closed."
15254 (let ((method (gnus-find-method-for-group group)))
15255 (funcall (gnus-get-function method 'close-group)
15256 (gnus-group-real-name group) (nth 1 method))))
15258 (defun gnus-retrieve-headers (articles group &optional fetch-old)
15259 "Request headers for ARTICLES in GROUP.
15260 If FETCH-OLD, retrieve all headers (or some subset thereof) in the group."
15261 (let ((method (gnus-find-method-for-group group)))
15262 (if (and gnus-use-cache (numberp (car articles)))
15263 (gnus-cache-retrieve-headers articles group fetch-old)
15264 (funcall (gnus-get-function method 'retrieve-headers)
15265 articles (gnus-group-real-name group) (nth 1 method)
15266 fetch-old))))
15268 (defun gnus-retrieve-groups (groups method)
15269 "Request active information on GROUPS from METHOD."
15270 (when (stringp method)
15271 (setq method (gnus-server-to-method method)))
15272 (funcall (gnus-get-function method 'retrieve-groups) groups (nth 1 method)))
15274 (defun gnus-request-type (group &optional article)
15275 "Return the type (`post' or `mail') of GROUP (and ARTICLE)."
15276 (let ((method (gnus-find-method-for-group group)))
15277 (if (not (gnus-check-backend-function 'request-type (car method)))
15278 'unknown
15279 (funcall (gnus-get-function method 'request-type)
15280 (gnus-group-real-name group) article))))
15282 (defun gnus-request-update-mark (group article mark)
15283 "Return the type (`post' or `mail') of GROUP (and ARTICLE)."
15284 (let ((method (gnus-find-method-for-group group)))
15285 (if (not (gnus-check-backend-function 'request-update-mark (car method)))
15286 mark
15287 (funcall (gnus-get-function method 'request-update-mark)
15288 (gnus-group-real-name group) article mark))))
15290 (defun gnus-request-article (article group &optional buffer)
15291 "Request the ARTICLE in GROUP.
15292 ARTICLE can either be an article number or an article Message-ID.
15293 If BUFFER, insert the article in that group."
15294 (let ((method (gnus-find-method-for-group group)))
15295 (funcall (gnus-get-function method 'request-article)
15296 article (gnus-group-real-name group) (nth 1 method) buffer)))
15298 (defun gnus-request-head (article group)
15299 "Request the head of ARTICLE in GROUP."
15300 (let* ((method (gnus-find-method-for-group group))
15301 (head (gnus-get-function method 'request-head t)))
15302 (if (fboundp head)
15303 (funcall head article (gnus-group-real-name group) (nth 1 method))
15304 (let ((res (gnus-request-article article group)))
15305 (when res
15306 (save-excursion
15307 (set-buffer nntp-server-buffer)
15308 (goto-char (point-min))
15309 (when (search-forward "\n\n" nil t)
15310 (delete-region (1- (point)) (point-max)))
15311 (nnheader-fold-continuation-lines)))
15312 res))))
15314 (defun gnus-request-body (article group)
15315 "Request the body of ARTICLE in GROUP."
15316 (let ((method (gnus-find-method-for-group group)))
15317 (funcall (gnus-get-function method 'request-body)
15318 article (gnus-group-real-name group) (nth 1 method))))
15320 (defun gnus-request-post (method)
15321 "Post the current buffer using METHOD."
15322 (when (stringp method)
15323 (setq method (gnus-server-to-method method)))
15324 (funcall (gnus-get-function method 'request-post) (nth 1 method)))
15326 (defun gnus-request-scan (group method)
15327 "Request a SCAN being performed in GROUP from METHOD.
15328 If GROUP is nil, all groups on METHOD are scanned."
15329 (let ((method (if group (gnus-find-method-for-group group) method)))
15330 (funcall (gnus-get-function method 'request-scan)
15331 (and group (gnus-group-real-name group)) (nth 1 method))))
15333 (defsubst gnus-request-update-info (info method)
15334 "Request that METHOD update INFO."
15335 (when (stringp method)
15336 (setq method (gnus-server-to-method method)))
15337 (when (gnus-check-backend-function 'request-update-info (car method))
15338 (funcall (gnus-get-function method 'request-update-info)
15339 (gnus-group-real-name (gnus-info-group info))
15340 info (nth 1 method))))
15342 (defun gnus-request-expire-articles (articles group &optional force)
15343 (let ((method (gnus-find-method-for-group group)))
15344 (funcall (gnus-get-function method 'request-expire-articles)
15345 articles (gnus-group-real-name group) (nth 1 method)
15346 force)))
15348 (defun gnus-request-move-article
15349 (article group server accept-function &optional last)
15350 (let ((method (gnus-find-method-for-group group)))
15351 (funcall (gnus-get-function method 'request-move-article)
15352 article (gnus-group-real-name group)
15353 (nth 1 method) accept-function last)))
15355 (defun gnus-request-accept-article (group method &optional last)
15356 ;; Make sure there's a newline at the end of the article.
15357 (when (stringp method)
15358 (setq method (gnus-server-to-method method)))
15359 (when (and (not method)
15360 (stringp group))
15361 (setq method (gnus-group-name-to-method group)))
15362 (goto-char (point-max))
15363 (unless (bolp)
15364 (insert "\n"))
15365 (let ((func (car (or method (gnus-find-method-for-group group)))))
15366 (funcall (intern (format "%s-request-accept-article" func))
15367 (if (stringp group) (gnus-group-real-name group) group)
15368 (cadr method)
15369 last)))
15371 (defun gnus-request-replace-article (article group buffer)
15372 (let ((func (car (gnus-find-method-for-group group))))
15373 (funcall (intern (format "%s-request-replace-article" func))
15374 article (gnus-group-real-name group) buffer)))
15376 (defun gnus-request-associate-buffer (group)
15377 (let ((method (gnus-find-method-for-group group)))
15378 (funcall (gnus-get-function method 'request-associate-buffer)
15379 (gnus-group-real-name group))))
15381 (defun gnus-request-restore-buffer (article group)
15382 "Request a new buffer restored to the state of ARTICLE."
15383 (let ((method (gnus-find-method-for-group group)))
15384 (funcall (gnus-get-function method 'request-restore-buffer)
15385 article (gnus-group-real-name group) (nth 1 method))))
15387 (defun gnus-request-create-group (group &optional method)
15388 (when (stringp method)
15389 (setq method (gnus-server-to-method method)))
15390 (let ((method (or method (gnus-find-method-for-group group))))
15391 (funcall (gnus-get-function method 'request-create-group)
15392 (gnus-group-real-name group) (nth 1 method))))
15394 (defun gnus-request-delete-group (group &optional force)
15395 (let ((method (gnus-find-method-for-group group)))
15396 (funcall (gnus-get-function method 'request-delete-group)
15397 (gnus-group-real-name group) force (nth 1 method))))
15399 (defun gnus-request-rename-group (group new-name)
15400 (let ((method (gnus-find-method-for-group group)))
15401 (funcall (gnus-get-function method 'request-rename-group)
15402 (gnus-group-real-name group)
15403 (gnus-group-real-name new-name) (nth 1 method))))
15405 (defun gnus-member-of-valid (symbol group)
15406 "Find out if GROUP has SYMBOL as part of its \"valid\" spec."
15407 (memq symbol (assoc
15408 (symbol-name (car (gnus-find-method-for-group group)))
15409 gnus-valid-select-methods)))
15411 (defun gnus-method-option-p (method option)
15412 "Return non-nil if select METHOD has OPTION as a parameter."
15413 (when (stringp method)
15414 (setq method (gnus-server-to-method method)))
15415 (memq option (assoc (format "%s" (car method))
15416 gnus-valid-select-methods)))
15418 (defun gnus-server-extend-method (group method)
15419 ;; This function "extends" a virtual server. If the server is
15420 ;; "hello", and the select method is ("hello" (my-var "something"))
15421 ;; in the group "alt.alt", this will result in a new virtual server
15422 ;; called "hello+alt.alt".
15423 (let ((entry
15424 (gnus-copy-sequence
15425 (if (equal (car method) "native") gnus-select-method
15426 (cdr (assoc (car method) gnus-server-alist))))))
15427 (setcar (cdr entry) (concat (nth 1 entry) "+" group))
15428 (nconc entry (cdr method))))
15430 (defun gnus-server-status (method)
15431 "Return the status of METHOD."
15432 (nth 1 (assoc method gnus-opened-servers)))
15434 (defun gnus-group-name-to-method (group)
15435 "Return a select method suitable for GROUP."
15436 (if (string-match ":" group)
15437 (let ((server (substring group 0 (match-beginning 0))))
15438 (if (string-match "\\+" server)
15439 (list (intern (substring server 0 (match-beginning 0)))
15440 (substring server (match-end 0)))
15441 (list (intern server) "")))
15442 gnus-select-method))
15444 (defun gnus-find-method-for-group (group &optional info)
15445 "Find the select method that GROUP uses."
15446 (or gnus-override-method
15447 (and (not group)
15448 gnus-select-method)
15449 (let ((info (or info (gnus-get-info group)))
15450 method)
15451 (if (or (not info)
15452 (not (setq method (gnus-info-method info)))
15453 (equal method "native"))
15454 gnus-select-method
15455 (setq method
15456 (cond ((stringp method)
15457 (gnus-server-to-method method))
15458 ((stringp (car method))
15459 (gnus-server-extend-method group method))
15461 method)))
15462 (cond ((equal (cadr method) "")
15463 method)
15464 ((null (cadr method))
15465 (list (car method) ""))
15467 (gnus-server-add-address method)))))))
15469 (defun gnus-check-backend-function (func group)
15470 "Check whether GROUP supports function FUNC."
15471 (let ((method (if (stringp group) (car (gnus-find-method-for-group group))
15472 group)))
15473 (fboundp (intern (format "%s-%s" method func)))))
15475 (defun gnus-methods-using (feature)
15476 "Find all methods that have FEATURE."
15477 (let ((valids gnus-valid-select-methods)
15478 outs)
15479 (while valids
15480 (if (memq feature (car valids))
15481 (setq outs (cons (car valids) outs)))
15482 (setq valids (cdr valids)))
15483 outs))
15487 ;;; Active & Newsrc File Handling
15490 (defun gnus-setup-news (&optional rawfile level dont-connect)
15491 "Setup news information.
15492 If RAWFILE is non-nil, the .newsrc file will also be read.
15493 If LEVEL is non-nil, the news will be set up at level LEVEL."
15494 (let ((init (not (and gnus-newsrc-alist gnus-active-hashtb (not rawfile)))))
15496 (when init
15497 ;; Clear some variables to re-initialize news information.
15498 (setq gnus-newsrc-alist nil
15499 gnus-active-hashtb nil)
15500 ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
15501 (gnus-read-newsrc-file rawfile))
15503 (when (and (not (assoc "archive" gnus-server-alist))
15504 (gnus-archive-server-wanted-p))
15505 (push (cons "archive" gnus-message-archive-method)
15506 gnus-server-alist))
15508 ;; If we don't read the complete active file, we fill in the
15509 ;; hashtb here.
15510 (if (or (null gnus-read-active-file)
15511 (eq gnus-read-active-file 'some))
15512 (gnus-update-active-hashtb-from-killed))
15514 ;; Read the active file and create `gnus-active-hashtb'.
15515 ;; If `gnus-read-active-file' is nil, then we just create an empty
15516 ;; hash table. The partial filling out of the hash table will be
15517 ;; done in `gnus-get-unread-articles'.
15518 (and gnus-read-active-file
15519 (not level)
15520 (gnus-read-active-file))
15522 (or gnus-active-hashtb
15523 (setq gnus-active-hashtb (make-vector 4095 0)))
15525 ;; Initialize the cache.
15526 (when gnus-use-cache
15527 (gnus-cache-open))
15529 ;; Possibly eval the dribble file.
15530 (and init (or gnus-use-dribble-file gnus-slave) (gnus-dribble-eval-file))
15532 ;; Slave Gnusii should then clear the dribble buffer.
15533 (when (and init gnus-slave)
15534 (gnus-dribble-clear))
15536 (gnus-update-format-specifications)
15538 ;; See whether we need to read the description file.
15539 (if (and (string-match "%[-,0-9]*D" gnus-group-line-format)
15540 (not gnus-description-hashtb)
15541 (not dont-connect)
15542 gnus-read-active-file)
15543 (gnus-read-all-descriptions-files))
15545 ;; Find new newsgroups and treat them.
15546 (if (and init gnus-check-new-newsgroups (not level)
15547 (gnus-check-server gnus-select-method))
15548 (gnus-find-new-newsgroups))
15550 ;; We might read in new NoCeM messages here.
15551 (when (and gnus-use-nocem
15552 (not level)
15553 (not dont-connect))
15554 (gnus-nocem-scan-groups))
15556 ;; Find the number of unread articles in each non-dead group.
15557 (let ((gnus-read-active-file (and (not level) gnus-read-active-file)))
15558 (gnus-get-unread-articles level))
15560 (if (and init gnus-check-bogus-newsgroups
15561 gnus-read-active-file (not level)
15562 (gnus-server-opened gnus-select-method))
15563 (gnus-check-bogus-newsgroups))))
15565 (defun gnus-find-new-newsgroups (&optional arg)
15566 "Search for new newsgroups and add them.
15567 Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method.'
15568 The `-n' option line from .newsrc is respected.
15569 If ARG (the prefix), use the `ask-server' method to query
15570 the server for new groups."
15571 (interactive "P")
15572 (let ((check (if (or (and arg (not (listp gnus-check-new-newsgroups)))
15573 (null gnus-read-active-file)
15574 (eq gnus-read-active-file 'some))
15575 'ask-server gnus-check-new-newsgroups)))
15576 (unless (gnus-check-first-time-used)
15577 (if (or (consp check)
15578 (eq check 'ask-server))
15579 ;; Ask the server for new groups.
15580 (gnus-ask-server-for-new-groups)
15581 ;; Go through the active hashtb and look for new groups.
15582 (let ((groups 0)
15583 group new-newsgroups)
15584 (gnus-message 5 "Looking for new newsgroups...")
15585 (unless gnus-have-read-active-file
15586 (gnus-read-active-file))
15587 (setq gnus-newsrc-last-checked-date (current-time-string))
15588 (unless gnus-killed-hashtb
15589 (gnus-make-hashtable-from-killed))
15590 ;; Go though every newsgroup in `gnus-active-hashtb' and compare
15591 ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
15592 (mapatoms
15593 (lambda (sym)
15594 (if (or (null (setq group (symbol-name sym)))
15595 (not (boundp sym))
15596 (null (symbol-value sym))
15597 (gnus-gethash group gnus-killed-hashtb)
15598 (gnus-gethash group gnus-newsrc-hashtb))
15600 (let ((do-sub (gnus-matches-options-n group)))
15601 (cond
15602 ((eq do-sub 'subscribe)
15603 (setq groups (1+ groups))
15604 (gnus-sethash group group gnus-killed-hashtb)
15605 (funcall gnus-subscribe-options-newsgroup-method group))
15606 ((eq do-sub 'ignore)
15607 nil)
15609 (setq groups (1+ groups))
15610 (gnus-sethash group group gnus-killed-hashtb)
15611 (if gnus-subscribe-hierarchical-interactive
15612 (setq new-newsgroups (cons group new-newsgroups))
15613 (funcall gnus-subscribe-newsgroup-method group)))))))
15614 gnus-active-hashtb)
15615 (when new-newsgroups
15616 (gnus-subscribe-hierarchical-interactive new-newsgroups))
15617 ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
15618 (if (> groups 0)
15619 (gnus-message 6 "%d new newsgroup%s arrived."
15620 groups (if (> groups 1) "s have" " has"))
15621 (gnus-message 6 "No new newsgroups.")))))))
15623 (defun gnus-matches-options-n (group)
15624 ;; Returns `subscribe' if the group is to be unconditionally
15625 ;; subscribed, `ignore' if it is to be ignored, and nil if there is
15626 ;; no match for the group.
15628 ;; First we check the two user variables.
15629 (cond
15630 ((and gnus-options-subscribe
15631 (string-match gnus-options-subscribe group))
15632 'subscribe)
15633 ((and gnus-auto-subscribed-groups
15634 (string-match gnus-auto-subscribed-groups group))
15635 'subscribe)
15636 ((and gnus-options-not-subscribe
15637 (string-match gnus-options-not-subscribe group))
15638 'ignore)
15639 ;; Then we go through the list that was retrieved from the .newsrc
15640 ;; file. This list has elements on the form
15641 ;; `(REGEXP . {ignore,subscribe})'. The first match found (the list
15642 ;; is in the reverse order of the options line) is returned.
15644 (let ((regs gnus-newsrc-options-n))
15645 (while (and regs
15646 (not (string-match (caar regs) group)))
15647 (setq regs (cdr regs)))
15648 (and regs (cdar regs))))))
15650 (defun gnus-ask-server-for-new-groups ()
15651 (let* ((date (or gnus-newsrc-last-checked-date (current-time-string)))
15652 (methods (cons gnus-select-method
15653 (nconc
15654 (when (gnus-archive-server-wanted-p)
15655 (list "archive"))
15656 (append
15657 (and (consp gnus-check-new-newsgroups)
15658 gnus-check-new-newsgroups)
15659 gnus-secondary-select-methods))))
15660 (groups 0)
15661 (new-date (current-time-string))
15662 group new-newsgroups got-new method hashtb
15663 gnus-override-subscribe-method)
15664 ;; Go through both primary and secondary select methods and
15665 ;; request new newsgroups.
15666 (while (setq method (gnus-server-get-method nil (pop methods)))
15667 (setq new-newsgroups nil)
15668 (setq gnus-override-subscribe-method method)
15669 (when (and (gnus-check-server method)
15670 (gnus-request-newgroups date method))
15671 (save-excursion
15672 (setq got-new t)
15673 (setq hashtb (gnus-make-hashtable 100))
15674 (set-buffer nntp-server-buffer)
15675 ;; Enter all the new groups into a hashtable.
15676 (gnus-active-to-gnus-format method hashtb 'ignore))
15677 ;; Now all new groups from `method' are in `hashtb'.
15678 (mapatoms
15679 (lambda (group-sym)
15680 (if (or (null (setq group (symbol-name group-sym)))
15681 (not (boundp group-sym))
15682 (null (symbol-value group-sym))
15683 (gnus-gethash group gnus-newsrc-hashtb)
15684 (member group gnus-zombie-list)
15685 (member group gnus-killed-list))
15686 ;; The group is already known.
15688 ;; Make this group active.
15689 (when (symbol-value group-sym)
15690 (gnus-set-active group (symbol-value group-sym)))
15691 ;; Check whether we want it or not.
15692 (let ((do-sub (gnus-matches-options-n group)))
15693 (cond
15694 ((eq do-sub 'subscribe)
15695 (incf groups)
15696 (gnus-sethash group group gnus-killed-hashtb)
15697 (funcall gnus-subscribe-options-newsgroup-method group))
15698 ((eq do-sub 'ignore)
15699 nil)
15701 (incf groups)
15702 (gnus-sethash group group gnus-killed-hashtb)
15703 (if gnus-subscribe-hierarchical-interactive
15704 (push group new-newsgroups)
15705 (funcall gnus-subscribe-newsgroup-method group)))))))
15706 hashtb))
15707 (when new-newsgroups
15708 (gnus-subscribe-hierarchical-interactive new-newsgroups)))
15709 ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
15710 (when (> groups 0)
15711 (gnus-message 6 "%d new newsgroup%s arrived."
15712 groups (if (> groups 1) "s have" " has")))
15713 (and got-new (setq gnus-newsrc-last-checked-date new-date))
15714 got-new))
15716 (defun gnus-check-first-time-used ()
15717 (if (or (> (length gnus-newsrc-alist) 1)
15718 (file-exists-p gnus-startup-file)
15719 (file-exists-p (concat gnus-startup-file ".el"))
15720 (file-exists-p (concat gnus-startup-file ".eld")))
15722 (gnus-message 6 "First time user; subscribing you to default groups")
15723 (unless (gnus-read-active-file-p)
15724 (gnus-read-active-file))
15725 (setq gnus-newsrc-last-checked-date (current-time-string))
15726 (let ((groups gnus-default-subscribed-newsgroups)
15727 group)
15728 (if (eq groups t)
15730 (setq groups (or groups gnus-backup-default-subscribed-newsgroups))
15731 (mapatoms
15732 (lambda (sym)
15733 (if (null (setq group (symbol-name sym)))
15735 (let ((do-sub (gnus-matches-options-n group)))
15736 (cond
15737 ((eq do-sub 'subscribe)
15738 (gnus-sethash group group gnus-killed-hashtb)
15739 (funcall gnus-subscribe-options-newsgroup-method group))
15740 ((eq do-sub 'ignore)
15741 nil)
15743 (setq gnus-killed-list (cons group gnus-killed-list)))))))
15744 gnus-active-hashtb)
15745 (while groups
15746 (if (gnus-active (car groups))
15747 (gnus-group-change-level
15748 (car groups) gnus-level-default-subscribed gnus-level-killed))
15749 (setq groups (cdr groups)))
15750 (gnus-group-make-help-group)
15751 (and gnus-novice-user
15752 (gnus-message 7 "`A k' to list killed groups"))))))
15754 (defun gnus-subscribe-group (group previous &optional method)
15755 (gnus-group-change-level
15756 (if method
15757 (list t group gnus-level-default-subscribed nil nil method)
15758 group)
15759 gnus-level-default-subscribed gnus-level-killed previous t))
15761 ;; `gnus-group-change-level' is the fundamental function for changing
15762 ;; subscription levels of newsgroups. This might mean just changing
15763 ;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
15764 ;; again, which subscribes/unsubscribes a group, which is equally
15765 ;; trivial. Changing from 1-7 to 8-9 means that you kill a group, and
15766 ;; from 8-9 to 1-7 means that you remove the group from the list of
15767 ;; killed (or zombie) groups and add them to the (kinda) subscribed
15768 ;; groups. And last but not least, moving from 8 to 9 and 9 to 8,
15769 ;; which is trivial.
15770 ;; ENTRY can either be a string (newsgroup name) or a list (if
15771 ;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
15772 ;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
15773 ;; entries.
15774 ;; LEVEL is the new level of the group, OLDLEVEL is the old level and
15775 ;; PREVIOUS is the group (in hashtb entry format) to insert this group
15776 ;; after.
15777 (defun gnus-group-change-level (entry level &optional oldlevel
15778 previous fromkilled)
15779 (let (group info active num)
15780 ;; Glean what info we can from the arguments
15781 (if (consp entry)
15782 (if fromkilled (setq group (nth 1 entry))
15783 (setq group (car (nth 2 entry))))
15784 (setq group entry))
15785 (if (and (stringp entry)
15786 oldlevel
15787 (< oldlevel gnus-level-zombie))
15788 (setq entry (gnus-gethash entry gnus-newsrc-hashtb)))
15789 (if (and (not oldlevel)
15790 (consp entry))
15791 (setq oldlevel (gnus-info-level (nth 2 entry)))
15792 (setq oldlevel (or oldlevel 9)))
15793 (if (stringp previous)
15794 (setq previous (gnus-gethash previous gnus-newsrc-hashtb)))
15796 (if (and (>= oldlevel gnus-level-zombie)
15797 (gnus-gethash group gnus-newsrc-hashtb))
15798 ;; We are trying to subscribe a group that is already
15799 ;; subscribed.
15800 () ; Do nothing.
15802 (or (gnus-ephemeral-group-p group)
15803 (gnus-dribble-enter
15804 (format "(gnus-group-change-level %S %S %S %S %S)"
15805 group level oldlevel (car (nth 2 previous)) fromkilled)))
15807 ;; Then we remove the newgroup from any old structures, if needed.
15808 ;; If the group was killed, we remove it from the killed or zombie
15809 ;; list. If not, and it is in fact going to be killed, we remove
15810 ;; it from the newsrc hash table and assoc.
15811 (cond
15812 ((>= oldlevel gnus-level-zombie)
15813 (if (= oldlevel gnus-level-zombie)
15814 (setq gnus-zombie-list (delete group gnus-zombie-list))
15815 (setq gnus-killed-list (delete group gnus-killed-list))))
15817 (if (and (>= level gnus-level-zombie)
15818 entry)
15819 (progn
15820 (gnus-sethash (car (nth 2 entry)) nil gnus-newsrc-hashtb)
15821 (if (nth 3 entry)
15822 (setcdr (gnus-gethash (car (nth 3 entry))
15823 gnus-newsrc-hashtb)
15824 (cdr entry)))
15825 (setcdr (cdr entry) (cdddr entry))))))
15827 ;; Finally we enter (if needed) the list where it is supposed to
15828 ;; go, and change the subscription level. If it is to be killed,
15829 ;; we enter it into the killed or zombie list.
15830 (cond
15831 ((>= level gnus-level-zombie)
15832 ;; Remove from the hash table.
15833 (gnus-sethash group nil gnus-newsrc-hashtb)
15834 ;; We do not enter foreign groups into the list of dead
15835 ;; groups.
15836 (unless (gnus-group-foreign-p group)
15837 (if (= level gnus-level-zombie)
15838 (setq gnus-zombie-list (cons group gnus-zombie-list))
15839 (setq gnus-killed-list (cons group gnus-killed-list)))))
15841 ;; If the list is to be entered into the newsrc assoc, and
15842 ;; it was killed, we have to create an entry in the newsrc
15843 ;; hashtb format and fix the pointers in the newsrc assoc.
15844 (if (< oldlevel gnus-level-zombie)
15845 ;; It was alive, and it is going to stay alive, so we
15846 ;; just change the level and don't change any pointers or
15847 ;; hash table entries.
15848 (setcar (cdaddr entry) level)
15849 (if (listp entry)
15850 (setq info (cdr entry)
15851 num (car entry))
15852 (setq active (gnus-active group))
15853 (setq num
15854 (if active (- (1+ (cdr active)) (car active)) t))
15855 ;; Check whether the group is foreign. If so, the
15856 ;; foreign select method has to be entered into the
15857 ;; info.
15858 (let ((method (or gnus-override-subscribe-method
15859 (gnus-group-method group))))
15860 (if (eq method gnus-select-method)
15861 (setq info (list group level nil))
15862 (setq info (list group level nil nil method)))))
15863 (unless previous
15864 (setq previous
15865 (let ((p gnus-newsrc-alist))
15866 (while (cddr p)
15867 (setq p (cdr p)))
15868 p)))
15869 (setq entry (cons info (cddr previous)))
15870 (if (cdr previous)
15871 (progn
15872 (setcdr (cdr previous) entry)
15873 (gnus-sethash group (cons num (cdr previous))
15874 gnus-newsrc-hashtb))
15875 (setcdr previous entry)
15876 (gnus-sethash group (cons num previous)
15877 gnus-newsrc-hashtb))
15878 (when (cdr entry)
15879 (setcdr (gnus-gethash (caadr entry) gnus-newsrc-hashtb) entry)))))
15880 (when gnus-group-change-level-function
15881 (funcall gnus-group-change-level-function group level oldlevel)))))
15883 (defun gnus-kill-newsgroup (newsgroup)
15884 "Obsolete function. Kills a newsgroup."
15885 (gnus-group-change-level
15886 (gnus-gethash newsgroup gnus-newsrc-hashtb) gnus-level-killed))
15888 (defun gnus-check-bogus-newsgroups (&optional confirm)
15889 "Remove bogus newsgroups.
15890 If CONFIRM is non-nil, the user has to confirm the deletion of every
15891 newsgroup."
15892 (let ((newsrc (cdr gnus-newsrc-alist))
15893 bogus group entry info)
15894 (gnus-message 5 "Checking bogus newsgroups...")
15895 (unless (gnus-read-active-file-p)
15896 (gnus-read-active-file))
15897 (when (gnus-read-active-file-p)
15898 ;; Find all bogus newsgroup that are subscribed.
15899 (while newsrc
15900 (setq info (pop newsrc)
15901 group (gnus-info-group info))
15902 (unless (or (gnus-active group) ; Active
15903 (gnus-info-method info) ; Foreign
15904 (and confirm
15905 (not (gnus-y-or-n-p
15906 (format "Remove bogus newsgroup: %s " group)))))
15907 ;; Found a bogus newsgroup.
15908 (push group bogus)))
15909 ;; Remove all bogus subscribed groups by first killing them, and
15910 ;; then removing them from the list of killed groups.
15911 (while bogus
15912 (when (setq entry (gnus-gethash (setq group (pop bogus))
15913 gnus-newsrc-hashtb))
15914 (gnus-group-change-level entry gnus-level-killed)
15915 (setq gnus-killed-list (delete group gnus-killed-list))))
15916 ;; Then we remove all bogus groups from the list of killed and
15917 ;; zombie groups. They are are removed without confirmation.
15918 (let ((dead-lists '(gnus-killed-list gnus-zombie-list))
15919 killed)
15920 (while dead-lists
15921 (setq killed (symbol-value (car dead-lists)))
15922 (while killed
15923 (unless (gnus-active (setq group (pop killed)))
15924 ;; The group is bogus.
15925 ;; !!!Slow as hell.
15926 (set (car dead-lists)
15927 (delete group (symbol-value (car dead-lists))))))
15928 (setq dead-lists (cdr dead-lists))))
15929 (gnus-message 5 "Checking bogus newsgroups...done"))))
15931 (defun gnus-check-duplicate-killed-groups ()
15932 "Remove duplicates from the list of killed groups."
15933 (interactive)
15934 (let ((killed gnus-killed-list))
15935 (while killed
15936 (gnus-message 9 "%d" (length killed))
15937 (setcdr killed (delete (car killed) (cdr killed)))
15938 (setq killed (cdr killed)))))
15940 ;; We want to inline a function from gnus-cache, so we cheat here:
15941 (eval-when-compile
15942 (provide 'gnus)
15943 (setq gnus-directory (or (getenv "SAVEDIR") "~/News/"))
15944 (require 'gnus-cache))
15946 (defun gnus-get-unread-articles-in-group (info active &optional update)
15947 (when active
15948 ;; Allow the backend to update the info in the group.
15949 (when (and update
15950 (gnus-request-update-info
15951 info (gnus-find-method-for-group (gnus-info-group info))))
15952 (gnus-activate-group (gnus-info-group info) nil t))
15953 (let* ((range (gnus-info-read info))
15954 (num 0))
15955 ;; If a cache is present, we may have to alter the active info.
15956 (when (and gnus-use-cache info)
15957 (inline (gnus-cache-possibly-alter-active
15958 (gnus-info-group info) active)))
15959 ;; Modify the list of read articles according to what articles
15960 ;; are available; then tally the unread articles and add the
15961 ;; number to the group hash table entry.
15962 (cond
15963 ((zerop (cdr active))
15964 (setq num 0))
15965 ((not range)
15966 (setq num (- (1+ (cdr active)) (car active))))
15967 ((not (listp (cdr range)))
15968 ;; Fix a single (num . num) range according to the
15969 ;; active hash table.
15970 ;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
15971 (and (< (cdr range) (car active)) (setcdr range (1- (car active))))
15972 (and (> (cdr range) (cdr active)) (setcdr range (cdr active)))
15973 ;; Compute number of unread articles.
15974 (setq num (max 0 (- (cdr active) (- (1+ (cdr range)) (car range))))))
15976 ;; The read list is a list of ranges. Fix them according to
15977 ;; the active hash table.
15978 ;; First peel off any elements that are below the lower
15979 ;; active limit.
15980 (while (and (cdr range)
15981 (>= (car active)
15982 (or (and (atom (cadr range)) (cadr range))
15983 (caadr range))))
15984 (if (numberp (car range))
15985 (setcar range
15986 (cons (car range)
15987 (or (and (numberp (cadr range))
15988 (cadr range))
15989 (cdadr range))))
15990 (setcdr (car range)
15991 (or (and (numberp (nth 1 range)) (nth 1 range))
15992 (cdadr range))))
15993 (setcdr range (cddr range)))
15994 ;; Adjust the first element to be the same as the lower limit.
15995 (if (and (not (atom (car range)))
15996 (< (cdar range) (car active)))
15997 (setcdr (car range) (1- (car active))))
15998 ;; Then we want to peel off any elements that are higher
15999 ;; than the upper active limit.
16000 (let ((srange range))
16001 ;; Go past all legal elements.
16002 (while (and (cdr srange)
16003 (<= (or (and (atom (cadr srange))
16004 (cadr srange))
16005 (caadr srange)) (cdr active)))
16006 (setq srange (cdr srange)))
16007 (if (cdr srange)
16008 ;; Nuke all remaining illegal elements.
16009 (setcdr srange nil))
16011 ;; Adjust the final element.
16012 (if (and (not (atom (car srange)))
16013 (> (cdar srange) (cdr active)))
16014 (setcdr (car srange) (cdr active))))
16015 ;; Compute the number of unread articles.
16016 (while range
16017 (setq num (+ num (- (1+ (or (and (atom (car range)) (car range))
16018 (cdar range)))
16019 (or (and (atom (car range)) (car range))
16020 (caar range)))))
16021 (setq range (cdr range)))
16022 (setq num (max 0 (- (cdr active) num)))))
16023 ;; Set the number of unread articles.
16024 (when info
16025 (setcar (gnus-gethash (gnus-info-group info) gnus-newsrc-hashtb) num))
16026 num)))
16028 ;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
16029 ;; and compute how many unread articles there are in each group.
16030 (defun gnus-get-unread-articles (&optional level)
16031 (let* ((newsrc (cdr gnus-newsrc-alist))
16032 (level (or level gnus-activate-level (1+ gnus-level-subscribed)))
16033 (foreign-level
16034 (min
16035 (cond ((and gnus-activate-foreign-newsgroups
16036 (not (numberp gnus-activate-foreign-newsgroups)))
16037 (1+ gnus-level-subscribed))
16038 ((numberp gnus-activate-foreign-newsgroups)
16039 gnus-activate-foreign-newsgroups)
16040 (t 0))
16041 level))
16042 info group active method)
16043 (gnus-message 5 "Checking new news...")
16045 (while newsrc
16046 (setq active (gnus-active (setq group (gnus-info-group
16047 (setq info (pop newsrc))))))
16049 ;; Check newsgroups. If the user doesn't want to check them, or
16050 ;; they can't be checked (for instance, if the news server can't
16051 ;; be reached) we just set the number of unread articles in this
16052 ;; newsgroup to t. This means that Gnus thinks that there are
16053 ;; unread articles, but it has no idea how many.
16054 (if (and (setq method (gnus-info-method info))
16055 (not (gnus-server-equal
16056 gnus-select-method
16057 (setq method (gnus-server-get-method nil method))))
16058 (not (gnus-secondary-method-p method)))
16059 ;; These groups are foreign. Check the level.
16060 (when (<= (gnus-info-level info) foreign-level)
16061 (setq active (gnus-activate-group group 'scan))
16062 (unless (inline (gnus-virtual-group-p group))
16063 (inline (gnus-close-group group)))
16064 (when (fboundp (intern (concat (symbol-name (car method))
16065 "-request-update-info")))
16066 (inline (gnus-request-update-info info method))))
16067 ;; These groups are native or secondary.
16068 (when (and (<= (gnus-info-level info) level)
16069 (not gnus-read-active-file))
16070 (setq active (gnus-activate-group group 'scan))
16071 (inline (gnus-close-group group))))
16073 ;; Get the number of unread articles in the group.
16074 (if active
16075 (inline (gnus-get-unread-articles-in-group info active))
16076 ;; The group couldn't be reached, so we nix out the number of
16077 ;; unread articles and stuff.
16078 (gnus-set-active group nil)
16079 (setcar (gnus-gethash group gnus-newsrc-hashtb) t)))
16081 (gnus-message 5 "Checking new news...done")))
16083 ;; Create a hash table out of the newsrc alist. The `car's of the
16084 ;; alist elements are used as keys.
16085 (defun gnus-make-hashtable-from-newsrc-alist ()
16086 (let ((alist gnus-newsrc-alist)
16087 (ohashtb gnus-newsrc-hashtb)
16088 prev)
16089 (setq gnus-newsrc-hashtb (gnus-make-hashtable (length alist)))
16090 (setq alist
16091 (setq prev (setq gnus-newsrc-alist
16092 (if (equal (caar gnus-newsrc-alist)
16093 "dummy.group")
16094 gnus-newsrc-alist
16095 (cons (list "dummy.group" 0 nil) alist)))))
16096 (while alist
16097 (gnus-sethash
16098 (caar alist)
16099 (cons (and ohashtb (car (gnus-gethash (caar alist) ohashtb)))
16100 prev)
16101 gnus-newsrc-hashtb)
16102 (setq prev alist
16103 alist (cdr alist)))))
16105 (defun gnus-make-hashtable-from-killed ()
16106 "Create a hash table from the killed and zombie lists."
16107 (let ((lists '(gnus-killed-list gnus-zombie-list))
16108 list)
16109 (setq gnus-killed-hashtb
16110 (gnus-make-hashtable
16111 (+ (length gnus-killed-list) (length gnus-zombie-list))))
16112 (while (setq list (pop lists))
16113 (setq list (symbol-value list))
16114 (while list
16115 (gnus-sethash (car list) (pop list) gnus-killed-hashtb)))))
16117 (defun gnus-activate-group (group &optional scan dont-check method)
16118 ;; Check whether a group has been activated or not.
16119 ;; If SCAN, request a scan of that group as well.
16120 (let ((method (or method (gnus-find-method-for-group group)))
16121 active)
16122 (and (gnus-check-server method)
16123 ;; We escape all bugs and quit here to make it possible to
16124 ;; continue if a group is so out-there that it reports bugs
16125 ;; and stuff.
16126 (progn
16127 (and scan
16128 (gnus-check-backend-function 'request-scan (car method))
16129 (gnus-request-scan group method))
16131 (condition-case ()
16132 (gnus-request-group group dont-check method)
16133 ; (error nil)
16134 (quit nil))
16135 (save-excursion
16136 (set-buffer nntp-server-buffer)
16137 (goto-char (point-min))
16138 ;; Parse the result we got from `gnus-request-group'.
16139 (and (looking-at "[0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+")
16140 (progn
16141 (goto-char (match-beginning 1))
16142 (gnus-set-active
16143 group (setq active (cons (read (current-buffer))
16144 (read (current-buffer)))))
16145 ;; Return the new active info.
16146 active))))))
16148 (defun gnus-update-read-articles (group unread)
16149 "Update the list of read and ticked articles in GROUP using the
16150 UNREAD and TICKED lists.
16151 Note: UNSELECTED has to be sorted over `<'.
16152 Returns whether the updating was successful."
16153 (let* ((active (or gnus-newsgroup-active (gnus-active group)))
16154 (entry (gnus-gethash group gnus-newsrc-hashtb))
16155 (info (nth 2 entry))
16156 (prev 1)
16157 (unread (sort (copy-sequence unread) '<))
16158 read)
16159 (if (or (not info) (not active))
16160 ;; There is no info on this group if it was, in fact,
16161 ;; killed. Gnus stores no information on killed groups, so
16162 ;; there's nothing to be done.
16163 ;; One could store the information somewhere temporarily,
16164 ;; perhaps... Hmmm...
16166 ;; Remove any negative articles numbers.
16167 (while (and unread (< (car unread) 0))
16168 (setq unread (cdr unread)))
16169 ;; Remove any expired article numbers
16170 (while (and unread (< (car unread) (car active)))
16171 (setq unread (cdr unread)))
16172 ;; Compute the ranges of read articles by looking at the list of
16173 ;; unread articles.
16174 (while unread
16175 (if (/= (car unread) prev)
16176 (setq read (cons (if (= prev (1- (car unread))) prev
16177 (cons prev (1- (car unread)))) read)))
16178 (setq prev (1+ (car unread)))
16179 (setq unread (cdr unread)))
16180 (when (<= prev (cdr active))
16181 (setq read (cons (cons prev (cdr active)) read)))
16182 ;; Enter this list into the group info.
16183 (gnus-info-set-read
16184 info (if (> (length read) 1) (nreverse read) read))
16185 ;; Set the number of unread articles in gnus-newsrc-hashtb.
16186 (gnus-get-unread-articles-in-group info (gnus-active group))
16187 t)))
16189 (defun gnus-make-articles-unread (group articles)
16190 "Mark ARTICLES in GROUP as unread."
16191 (let* ((info (nth 2 (or (gnus-gethash group gnus-newsrc-hashtb)
16192 (gnus-gethash (gnus-group-real-name group)
16193 gnus-newsrc-hashtb))))
16194 (ranges (gnus-info-read info))
16195 news article)
16196 (while articles
16197 (when (gnus-member-of-range
16198 (setq article (pop articles)) ranges)
16199 (setq news (cons article news))))
16200 (when news
16201 (gnus-info-set-read
16202 info (gnus-remove-from-range (gnus-info-read info) (nreverse news)))
16203 (gnus-group-update-group group t))))
16205 ;; Enter all dead groups into the hashtb.
16206 (defun gnus-update-active-hashtb-from-killed ()
16207 (let ((hashtb (setq gnus-active-hashtb (make-vector 4095 0)))
16208 (lists (list gnus-killed-list gnus-zombie-list))
16209 killed)
16210 (while lists
16211 (setq killed (car lists))
16212 (while killed
16213 (gnus-sethash (car killed) nil hashtb)
16214 (setq killed (cdr killed)))
16215 (setq lists (cdr lists)))))
16217 (defun gnus-get-killed-groups ()
16218 "Go through the active hashtb and all all unknown groups as killed."
16219 ;; First make sure active file has been read.
16220 (unless (gnus-read-active-file-p)
16221 (let ((gnus-read-active-file t))
16222 (gnus-read-active-file)))
16223 (or gnus-killed-hashtb (gnus-make-hashtable-from-killed))
16224 ;; Go through all newsgroups that are known to Gnus - enlarge kill list.
16225 (mapatoms
16226 (lambda (sym)
16227 (let ((groups 0)
16228 (group (symbol-name sym)))
16229 (if (or (null group)
16230 (gnus-gethash group gnus-killed-hashtb)
16231 (gnus-gethash group gnus-newsrc-hashtb))
16233 (let ((do-sub (gnus-matches-options-n group)))
16234 (if (or (eq do-sub 'subscribe) (eq do-sub 'ignore))
16236 (setq groups (1+ groups))
16237 (setq gnus-killed-list
16238 (cons group gnus-killed-list))
16239 (gnus-sethash group group gnus-killed-hashtb))))))
16240 gnus-active-hashtb))
16242 ;; Get the active file(s) from the backend(s).
16243 (defun gnus-read-active-file ()
16244 (gnus-group-set-mode-line)
16245 (let ((methods
16246 (append
16247 (if (gnus-check-server gnus-select-method)
16248 ;; The native server is available.
16249 (cons gnus-select-method gnus-secondary-select-methods)
16250 ;; The native server is down, so we just do the
16251 ;; secondary ones.
16252 gnus-secondary-select-methods)
16253 ;; Also read from the archive server.
16254 (when (gnus-archive-server-wanted-p)
16255 (list "archive"))))
16256 list-type)
16257 (setq gnus-have-read-active-file nil)
16258 (save-excursion
16259 (set-buffer nntp-server-buffer)
16260 (while methods
16261 (let* ((method (if (stringp (car methods))
16262 (gnus-server-get-method nil (car methods))
16263 (car methods)))
16264 (where (nth 1 method))
16265 (mesg (format "Reading active file%s via %s..."
16266 (if (and where (not (zerop (length where))))
16267 (concat " from " where) "")
16268 (car method))))
16269 (gnus-message 5 mesg)
16270 (when (gnus-check-server method)
16271 ;; Request that the backend scan its incoming messages.
16272 (and (gnus-check-backend-function 'request-scan (car method))
16273 (gnus-request-scan nil method))
16274 (cond
16275 ((and (eq gnus-read-active-file 'some)
16276 (gnus-check-backend-function 'retrieve-groups (car method)))
16277 (let ((newsrc (cdr gnus-newsrc-alist))
16278 (gmethod (gnus-server-get-method nil method))
16279 groups info)
16280 (while (setq info (pop newsrc))
16281 (when (gnus-server-equal
16282 (gnus-find-method-for-group
16283 (gnus-info-group info) info)
16284 gmethod)
16285 (push (gnus-group-real-name (gnus-info-group info))
16286 groups)))
16287 (when groups
16288 (gnus-check-server method)
16289 (setq list-type (gnus-retrieve-groups groups method))
16290 (cond
16291 ((not list-type)
16292 (gnus-error
16293 1.2 "Cannot read partial active file from %s server."
16294 (car method)))
16295 ((eq list-type 'active)
16296 (gnus-active-to-gnus-format method gnus-active-hashtb))
16298 (gnus-groups-to-gnus-format method gnus-active-hashtb))))))
16300 (if (not (gnus-request-list method))
16301 (unless (equal method gnus-message-archive-method)
16302 (gnus-error 1 "Cannot read active file from %s server."
16303 (car method)))
16304 (gnus-message 5 mesg)
16305 (gnus-active-to-gnus-format method gnus-active-hashtb)
16306 ;; We mark this active file as read.
16307 (push method gnus-have-read-active-file)
16308 (gnus-message 5 "%sdone" mesg))))))
16309 (setq methods (cdr methods))))))
16311 ;; Read an active file and place the results in `gnus-active-hashtb'.
16312 (defun gnus-active-to-gnus-format (&optional method hashtb ignore-errors)
16313 (unless method
16314 (setq method gnus-select-method))
16315 (let ((cur (current-buffer))
16316 (hashtb (or hashtb
16317 (if (and gnus-active-hashtb
16318 (not (equal method gnus-select-method)))
16319 gnus-active-hashtb
16320 (setq gnus-active-hashtb
16321 (if (equal method gnus-select-method)
16322 (gnus-make-hashtable
16323 (count-lines (point-min) (point-max)))
16324 (gnus-make-hashtable 4096)))))))
16325 ;; Delete unnecessary lines.
16326 (goto-char (point-min))
16327 (while (search-forward "\nto." nil t)
16328 (delete-region (1+ (match-beginning 0))
16329 (progn (forward-line 1) (point))))
16330 (or (string= gnus-ignored-newsgroups "")
16331 (progn
16332 (goto-char (point-min))
16333 (delete-matching-lines gnus-ignored-newsgroups)))
16334 ;; Make the group names readable as a lisp expression even if they
16335 ;; contain special characters.
16336 ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
16337 (goto-char (point-max))
16338 (while (re-search-backward "[][';?()#]" nil t)
16339 (insert ?\\))
16340 ;; If these are groups from a foreign select method, we insert the
16341 ;; group prefix in front of the group names.
16342 (and method (not (gnus-server-equal
16343 (gnus-server-get-method nil method)
16344 (gnus-server-get-method nil gnus-select-method)))
16345 (let ((prefix (gnus-group-prefixed-name "" method)))
16346 (goto-char (point-min))
16347 (while (and (not (eobp))
16348 (progn (insert prefix)
16349 (zerop (forward-line 1)))))))
16350 ;; Store the active file in a hash table.
16351 (goto-char (point-min))
16352 (if (string-match "%[oO]" gnus-group-line-format)
16353 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
16354 ;; If we want information on moderated groups, we use this
16355 ;; loop...
16356 (let* ((mod-hashtb (make-vector 7 0))
16357 (m (intern "m" mod-hashtb))
16358 group max min)
16359 (while (not (eobp))
16360 (condition-case nil
16361 (progn
16362 (narrow-to-region (point) (gnus-point-at-eol))
16363 (setq group (let ((obarray hashtb)) (read cur)))
16364 (if (and (numberp (setq max (read cur)))
16365 (numberp (setq min (read cur)))
16366 (progn
16367 (skip-chars-forward " \t")
16368 (not
16369 (or (= (following-char) ?=)
16370 (= (following-char) ?x)
16371 (= (following-char) ?j)))))
16372 (set group (cons min max))
16373 (set group nil))
16374 ;; Enter moderated groups into a list.
16375 (if (eq (let ((obarray mod-hashtb)) (read cur)) m)
16376 (setq gnus-moderated-list
16377 (cons (symbol-name group) gnus-moderated-list))))
16378 (error
16379 (and group
16380 (symbolp group)
16381 (set group nil))))
16382 (widen)
16383 (forward-line 1)))
16384 ;; And if we do not care about moderation, we use this loop,
16385 ;; which is faster.
16386 (let (group max min)
16387 (while (not (eobp))
16388 (condition-case ()
16389 (progn
16390 (narrow-to-region (point) (gnus-point-at-eol))
16391 ;; group gets set to a symbol interned in the hash table
16392 ;; (what a hack!!) - jwz
16393 (setq group (let ((obarray hashtb)) (read cur)))
16394 (if (and (numberp (setq max (read cur)))
16395 (numberp (setq min (read cur)))
16396 (progn
16397 (skip-chars-forward " \t")
16398 (not
16399 (or (= (following-char) ?=)
16400 (= (following-char) ?x)
16401 (= (following-char) ?j)))))
16402 (set group (cons min max))
16403 (set group nil)))
16404 (error
16405 (progn
16406 (and group
16407 (symbolp group)
16408 (set group nil))
16409 (or ignore-errors
16410 (gnus-message 3 "Warning - illegal active: %s"
16411 (buffer-substring
16412 (gnus-point-at-bol) (gnus-point-at-eol)))))))
16413 (widen)
16414 (forward-line 1))))))
16416 (defun gnus-groups-to-gnus-format (method &optional hashtb)
16417 ;; Parse a "groups" active file.
16418 (let ((cur (current-buffer))
16419 (hashtb (or hashtb
16420 (if (and method gnus-active-hashtb)
16421 gnus-active-hashtb
16422 (setq gnus-active-hashtb
16423 (gnus-make-hashtable
16424 (count-lines (point-min) (point-max)))))))
16425 (prefix (and method
16426 (not (gnus-server-equal
16427 (gnus-server-get-method nil method)
16428 (gnus-server-get-method nil gnus-select-method)))
16429 (gnus-group-prefixed-name "" method))))
16431 (goto-char (point-min))
16432 ;; We split this into to separate loops, one with the prefix
16433 ;; and one without to speed the reading up somewhat.
16434 (if prefix
16435 (let (min max opoint group)
16436 (while (not (eobp))
16437 (condition-case ()
16438 (progn
16439 (read cur) (read cur)
16440 (setq min (read cur)
16441 max (read cur)
16442 opoint (point))
16443 (skip-chars-forward " \t")
16444 (insert prefix)
16445 (goto-char opoint)
16446 (set (let ((obarray hashtb)) (read cur))
16447 (cons min max)))
16448 (error (and group (symbolp group) (set group nil))))
16449 (forward-line 1)))
16450 (let (min max group)
16451 (while (not (eobp))
16452 (condition-case ()
16453 (if (= (following-char) ?2)
16454 (progn
16455 (read cur) (read cur)
16456 (setq min (read cur)
16457 max (read cur))
16458 (set (setq group (let ((obarray hashtb)) (read cur)))
16459 (cons min max))))
16460 (error (and group (symbolp group) (set group nil))))
16461 (forward-line 1))))))
16463 (defun gnus-read-newsrc-file (&optional force)
16464 "Read startup file.
16465 If FORCE is non-nil, the .newsrc file is read."
16466 ;; Reset variables that might be defined in the .newsrc.eld file.
16467 (let ((variables gnus-variable-list))
16468 (while variables
16469 (set (car variables) nil)
16470 (setq variables (cdr variables))))
16471 (let* ((newsrc-file gnus-current-startup-file)
16472 (quick-file (concat newsrc-file ".el")))
16473 (save-excursion
16474 ;; We always load the .newsrc.eld file. If always contains
16475 ;; much information that can not be gotten from the .newsrc
16476 ;; file (ticked articles, killed groups, foreign methods, etc.)
16477 (gnus-read-newsrc-el-file quick-file)
16479 (if (and (file-exists-p gnus-current-startup-file)
16480 (or force
16481 (and (file-newer-than-file-p newsrc-file quick-file)
16482 (file-newer-than-file-p newsrc-file
16483 (concat quick-file "d")))
16484 (not gnus-newsrc-alist)))
16485 ;; We read the .newsrc file. Note that if there if a
16486 ;; .newsrc.eld file exists, it has already been read, and
16487 ;; the `gnus-newsrc-hashtb' has been created. While reading
16488 ;; the .newsrc file, Gnus will only use the information it
16489 ;; can find there for changing the data already read -
16490 ;; ie. reading the .newsrc file will not trash the data
16491 ;; already read (except for read articles).
16492 (save-excursion
16493 (gnus-message 5 "Reading %s..." newsrc-file)
16494 (set-buffer (find-file-noselect newsrc-file))
16495 (buffer-disable-undo (current-buffer))
16496 (gnus-newsrc-to-gnus-format)
16497 (kill-buffer (current-buffer))
16498 (gnus-message 5 "Reading %s...done" newsrc-file)))
16500 ;; Read any slave files.
16501 (unless gnus-slave
16502 (gnus-master-read-slave-newsrc))
16504 ;; Convert old to new.
16505 (gnus-convert-old-newsrc))))
16507 (defun gnus-continuum-version (version)
16508 "Return VERSION as a floating point number."
16509 (when (or (string-match "^\\([^ ]+\\)? ?Gnus v?\\([0-9.]+\\)$" version)
16510 (string-match "^\\(.?\\)gnus-\\([0-9.]+\\)$" version))
16511 (let* ((alpha (and (match-beginning 1) (match-string 1 version)))
16512 (number (match-string 2 version))
16513 major minor least)
16514 (string-match "\\([0-9]\\)\\.\\([0-9]+\\)\\.?\\([0-9]+\\)?" number)
16515 (setq major (string-to-number (match-string 1 number)))
16516 (setq minor (string-to-number (match-string 2 number)))
16517 (setq least (if (match-beginning 3)
16518 (string-to-number (match-string 3 number))
16520 (string-to-number
16521 (if (zerop major)
16522 (format "%s00%02d%02d"
16523 (cond
16524 ((member alpha '("(ding)" "d")) "4.99")
16525 ((member alpha '("September" "s")) "5.01")
16526 ((member alpha '("Red" "r")) "5.03"))
16527 minor least)
16528 (format "%d.%02d%02d" major minor least))))))
16530 (defun gnus-convert-old-newsrc ()
16531 "Convert old newsrc into the new format, if needed."
16532 (let ((fcv (and gnus-newsrc-file-version
16533 (gnus-continuum-version gnus-newsrc-file-version))))
16534 (cond
16535 ;; No .newsrc.eld file was loaded.
16536 ((null fcv) nil)
16537 ;; Gnus 5 .newsrc.eld was loaded.
16538 ((< fcv (gnus-continuum-version "September Gnus v0.1"))
16539 (gnus-convert-old-ticks)))))
16541 (defun gnus-convert-old-ticks ()
16542 (let ((newsrc (cdr gnus-newsrc-alist))
16543 marks info dormant ticked)
16544 (while (setq info (pop newsrc))
16545 (when (setq marks (gnus-info-marks info))
16546 (setq dormant (cdr (assq 'dormant marks))
16547 ticked (cdr (assq 'tick marks)))
16548 (when (or dormant ticked)
16549 (gnus-info-set-read
16550 info
16551 (gnus-add-to-range
16552 (gnus-info-read info)
16553 (nconc (gnus-uncompress-range dormant)
16554 (gnus-uncompress-range ticked)))))))))
16556 (defun gnus-read-newsrc-el-file (file)
16557 (let ((ding-file (concat file "d")))
16558 ;; We always, always read the .eld file.
16559 (gnus-message 5 "Reading %s..." ding-file)
16560 (let (gnus-newsrc-assoc)
16561 (condition-case nil
16562 (load ding-file t t t)
16563 (error
16564 (gnus-error 1 "Error in %s" ding-file)))
16565 (when gnus-newsrc-assoc
16566 (setq gnus-newsrc-alist gnus-newsrc-assoc)))
16567 (gnus-make-hashtable-from-newsrc-alist)
16568 (when (file-newer-than-file-p file ding-file)
16569 ;; Old format quick file
16570 (gnus-message 5 "Reading %s..." file)
16571 ;; The .el file is newer than the .eld file, so we read that one
16572 ;; as well.
16573 (gnus-read-old-newsrc-el-file file))))
16575 ;; Parse the old-style quick startup file
16576 (defun gnus-read-old-newsrc-el-file (file)
16577 (let (newsrc killed marked group m info)
16578 (prog1
16579 (let ((gnus-killed-assoc nil)
16580 gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
16581 (prog1
16582 (condition-case nil
16583 (load file t t t)
16584 (error nil))
16585 (setq newsrc gnus-newsrc-assoc
16586 killed gnus-killed-assoc
16587 marked gnus-marked-assoc)))
16588 (setq gnus-newsrc-alist nil)
16589 (while (setq group (pop newsrc))
16590 (if (setq info (gnus-get-info (car group)))
16591 (progn
16592 (gnus-info-set-read info (cddr group))
16593 (gnus-info-set-level
16594 info (if (nth 1 group) gnus-level-default-subscribed
16595 gnus-level-default-unsubscribed))
16596 (setq gnus-newsrc-alist (cons info gnus-newsrc-alist)))
16597 (push (setq info
16598 (list (car group)
16599 (if (nth 1 group) gnus-level-default-subscribed
16600 gnus-level-default-unsubscribed)
16601 (cddr group)))
16602 gnus-newsrc-alist))
16603 ;; Copy marks into info.
16604 (when (setq m (assoc (car group) marked))
16605 (unless (nthcdr 3 info)
16606 (nconc info (list nil)))
16607 (gnus-info-set-marks
16608 info (list (cons 'tick (gnus-compress-sequence
16609 (sort (cdr m) '<) t))))))
16610 (setq newsrc killed)
16611 (while newsrc
16612 (setcar newsrc (caar newsrc))
16613 (setq newsrc (cdr newsrc)))
16614 (setq gnus-killed-list killed))
16615 ;; The .el file version of this variable does not begin with
16616 ;; "options", while the .eld version does, so we just add it if it
16617 ;; isn't there.
16618 (and
16619 gnus-newsrc-options
16620 (progn
16621 (and (not (string-match "^ *options" gnus-newsrc-options))
16622 (setq gnus-newsrc-options (concat "options " gnus-newsrc-options)))
16623 (and (not (string-match "\n$" gnus-newsrc-options))
16624 (setq gnus-newsrc-options (concat gnus-newsrc-options "\n")))
16625 ;; Finally, if we read some options lines, we parse them.
16626 (or (string= gnus-newsrc-options "")
16627 (gnus-newsrc-parse-options gnus-newsrc-options))))
16629 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist))
16630 (gnus-make-hashtable-from-newsrc-alist)))
16632 (defun gnus-make-newsrc-file (file)
16633 "Make server dependent file name by catenating FILE and server host name."
16634 (let* ((file (expand-file-name file nil))
16635 (real-file (concat file "-" (nth 1 gnus-select-method))))
16636 (if (or (file-exists-p real-file)
16637 (file-exists-p (concat real-file ".el"))
16638 (file-exists-p (concat real-file ".eld")))
16639 real-file file)))
16641 (defun gnus-newsrc-to-gnus-format ()
16642 (setq gnus-newsrc-options "")
16643 (setq gnus-newsrc-options-n nil)
16645 (or gnus-active-hashtb
16646 (setq gnus-active-hashtb (make-vector 4095 0)))
16647 (let ((buf (current-buffer))
16648 (already-read (> (length gnus-newsrc-alist) 1))
16649 group subscribed options-symbol newsrc Options-symbol
16650 symbol reads num1)
16651 (goto-char (point-min))
16652 ;; We intern the symbol `options' in the active hashtb so that we
16653 ;; can `eq' against it later.
16654 (set (setq options-symbol (intern "options" gnus-active-hashtb)) nil)
16655 (set (setq Options-symbol (intern "Options" gnus-active-hashtb)) nil)
16657 (while (not (eobp))
16658 ;; We first read the first word on the line by narrowing and
16659 ;; then reading into `gnus-active-hashtb'. Most groups will
16660 ;; already exist in that hashtb, so this will save some string
16661 ;; space.
16662 (narrow-to-region
16663 (point)
16664 (progn (skip-chars-forward "^ \t!:\n") (point)))
16665 (goto-char (point-min))
16666 (setq symbol
16667 (and (/= (point-min) (point-max))
16668 (let ((obarray gnus-active-hashtb)) (read buf))))
16669 (widen)
16670 ;; Now, the symbol we have read is either `options' or a group
16671 ;; name. If it is an options line, we just add it to a string.
16672 (cond
16673 ((or (eq symbol options-symbol)
16674 (eq symbol Options-symbol))
16675 (setq gnus-newsrc-options
16676 ;; This concating is quite inefficient, but since our
16677 ;; thorough studies show that approx 99.37% of all
16678 ;; .newsrc files only contain a single options line, we
16679 ;; don't give a damn, frankly, my dear.
16680 (concat gnus-newsrc-options
16681 (buffer-substring
16682 (gnus-point-at-bol)
16683 ;; Options may continue on the next line.
16684 (or (and (re-search-forward "^[^ \t]" nil 'move)
16685 (progn (beginning-of-line) (point)))
16686 (point)))))
16687 (forward-line -1))
16688 (symbol
16689 ;; Group names can be just numbers.
16690 (when (numberp symbol)
16691 (setq symbol (intern (int-to-string symbol) gnus-active-hashtb)))
16692 (or (boundp symbol) (set symbol nil))
16693 ;; It was a group name.
16694 (setq subscribed (= (following-char) ?:)
16695 group (symbol-name symbol)
16696 reads nil)
16697 (if (eolp)
16698 ;; If the line ends here, this is clearly a buggy line, so
16699 ;; we put point a the beginning of line and let the cond
16700 ;; below do the error handling.
16701 (beginning-of-line)
16702 ;; We skip to the beginning of the ranges.
16703 (skip-chars-forward "!: \t"))
16704 ;; We are now at the beginning of the list of read articles.
16705 ;; We read them range by range.
16706 (while
16707 (cond
16708 ((looking-at "[0-9]+")
16709 ;; We narrow and read a number instead of buffer-substring/
16710 ;; string-to-int because it's faster. narrow/widen is
16711 ;; faster than save-restriction/narrow, and save-restriction
16712 ;; produces a garbage object.
16713 (setq num1 (progn
16714 (narrow-to-region (match-beginning 0) (match-end 0))
16715 (read buf)))
16716 (widen)
16717 ;; If the next character is a dash, then this is a range.
16718 (if (= (following-char) ?-)
16719 (progn
16720 ;; We read the upper bound of the range.
16721 (forward-char 1)
16722 (if (not (looking-at "[0-9]+"))
16723 ;; This is a buggy line, by we pretend that
16724 ;; it's kinda OK. Perhaps the user should be
16725 ;; dinged?
16726 (setq reads (cons num1 reads))
16727 (setq reads
16728 (cons
16729 (cons num1
16730 (progn
16731 (narrow-to-region (match-beginning 0)
16732 (match-end 0))
16733 (read buf)))
16734 reads))
16735 (widen)))
16736 ;; It was just a simple number, so we add it to the
16737 ;; list of ranges.
16738 (setq reads (cons num1 reads)))
16739 ;; If the next char in ?\n, then we have reached the end
16740 ;; of the line and return nil.
16741 (/= (following-char) ?\n))
16742 ((= (following-char) ?\n)
16743 ;; End of line, so we end.
16744 nil)
16746 ;; Not numbers and not eol, so this might be a buggy
16747 ;; line...
16748 (or (eobp)
16749 ;; If it was eob instead of ?\n, we allow it.
16750 (progn
16751 ;; The line was buggy.
16752 (setq group nil)
16753 (gnus-error 3.1 "Mangled line: %s"
16754 (buffer-substring (gnus-point-at-bol)
16755 (gnus-point-at-eol)))))
16756 nil))
16757 ;; Skip past ", ". Spaces are illegal in these ranges, but
16758 ;; we allow them, because it's a common mistake to put a
16759 ;; space after the comma.
16760 (skip-chars-forward ", "))
16762 ;; We have already read .newsrc.eld, so we gently update the
16763 ;; data in the hash table with the information we have just
16764 ;; read.
16765 (when group
16766 (let ((info (gnus-get-info group))
16767 level)
16768 (if info
16769 ;; There is an entry for this file in the alist.
16770 (progn
16771 (gnus-info-set-read info (nreverse reads))
16772 ;; We update the level very gently. In fact, we
16773 ;; only change it if there's been a status change
16774 ;; from subscribed to unsubscribed, or vice versa.
16775 (setq level (gnus-info-level info))
16776 (cond ((and (<= level gnus-level-subscribed)
16777 (not subscribed))
16778 (setq level (if reads
16779 gnus-level-default-unsubscribed
16780 (1+ gnus-level-default-unsubscribed))))
16781 ((and (> level gnus-level-subscribed) subscribed)
16782 (setq level gnus-level-default-subscribed)))
16783 (gnus-info-set-level info level))
16784 ;; This is a new group.
16785 (setq info (list group
16786 (if subscribed
16787 gnus-level-default-subscribed
16788 (if reads
16789 (1+ gnus-level-subscribed)
16790 gnus-level-default-unsubscribed))
16791 (nreverse reads))))
16792 (setq newsrc (cons info newsrc))))))
16793 (forward-line 1))
16795 (setq newsrc (nreverse newsrc))
16797 (if (not already-read)
16799 ;; We now have two newsrc lists - `newsrc', which is what we
16800 ;; have read from .newsrc, and `gnus-newsrc-alist', which is
16801 ;; what we've read from .newsrc.eld. We have to merge these
16802 ;; lists. We do this by "attaching" any (foreign) groups in the
16803 ;; gnus-newsrc-alist to the (native) group that precedes them.
16804 (let ((rc (cdr gnus-newsrc-alist))
16805 (prev gnus-newsrc-alist)
16806 entry mentry)
16807 (while rc
16808 (or (null (nth 4 (car rc))) ; It's a native group.
16809 (assoc (caar rc) newsrc) ; It's already in the alist.
16810 (if (setq entry (assoc (caar prev) newsrc))
16811 (setcdr (setq mentry (memq entry newsrc))
16812 (cons (car rc) (cdr mentry)))
16813 (setq newsrc (cons (car rc) newsrc))))
16814 (setq prev rc
16815 rc (cdr rc)))))
16817 (setq gnus-newsrc-alist newsrc)
16818 ;; We make the newsrc hashtb.
16819 (gnus-make-hashtable-from-newsrc-alist)
16821 ;; Finally, if we read some options lines, we parse them.
16822 (or (string= gnus-newsrc-options "")
16823 (gnus-newsrc-parse-options gnus-newsrc-options))))
16825 ;; Parse options lines to find "options -n !all rec.all" and stuff.
16826 ;; The return value will be a list on the form
16827 ;; ((regexp1 . ignore)
16828 ;; (regexp2 . subscribe)...)
16829 ;; When handling new newsgroups, groups that match a `ignore' regexp
16830 ;; will be ignored, and groups that match a `subscribe' regexp will be
16831 ;; subscribed. A line like
16832 ;; options -n !all rec.all
16833 ;; will lead to a list that looks like
16834 ;; (("^rec\\..+" . subscribe)
16835 ;; ("^.+" . ignore))
16836 ;; So all "rec.*" groups will be subscribed, while all the other
16837 ;; groups will be ignored. Note that "options -n !all rec.all" is very
16838 ;; different from "options -n rec.all !all".
16839 (defun gnus-newsrc-parse-options (options)
16840 (let (out eol)
16841 (save-excursion
16842 (gnus-set-work-buffer)
16843 (insert (regexp-quote options))
16844 ;; First we treat all continuation lines.
16845 (goto-char (point-min))
16846 (while (re-search-forward "\n[ \t]+" nil t)
16847 (replace-match " " t t))
16848 ;; Then we transform all "all"s into ".+"s.
16849 (goto-char (point-min))
16850 (while (re-search-forward "\\ball\\b" nil t)
16851 (replace-match ".+" t t))
16852 (goto-char (point-min))
16853 ;; We remove all other options than the "-n" ones.
16854 (while (re-search-forward "[ \t]-[^n][^-]*" nil t)
16855 (replace-match " ")
16856 (forward-char -1))
16857 (goto-char (point-min))
16859 ;; We are only interested in "options -n" lines - we
16860 ;; ignore the other option lines.
16861 (while (re-search-forward "[ \t]-n" nil t)
16862 (setq eol
16863 (or (save-excursion
16864 (and (re-search-forward "[ \t]-n" (gnus-point-at-eol) t)
16865 (- (point) 2)))
16866 (gnus-point-at-eol)))
16867 ;; Search for all "words"...
16868 (while (re-search-forward "[^ \t,\n]+" eol t)
16869 (if (= (char-after (match-beginning 0)) ?!)
16870 ;; If the word begins with a bang (!), this is a "not"
16871 ;; spec. We put this spec (minus the bang) and the
16872 ;; symbol `ignore' into the list.
16873 (setq out (cons (cons (concat
16874 "^" (buffer-substring
16875 (1+ (match-beginning 0))
16876 (match-end 0)))
16877 'ignore) out))
16878 ;; There was no bang, so this is a "yes" spec.
16879 (setq out (cons (cons (concat "^" (match-string 0))
16880 'subscribe) out)))))
16882 (setq gnus-newsrc-options-n out))))
16884 (defun gnus-save-newsrc-file (&optional force)
16885 "Save .newsrc file."
16886 ;; Note: We cannot save .newsrc file if all newsgroups are removed
16887 ;; from the variable gnus-newsrc-alist.
16888 (when (and (or gnus-newsrc-alist gnus-killed-list)
16889 gnus-current-startup-file)
16890 (save-excursion
16891 (if (and (or gnus-use-dribble-file gnus-slave)
16892 (not force)
16893 (or (not gnus-dribble-buffer)
16894 (not (buffer-name gnus-dribble-buffer))
16895 (zerop (save-excursion
16896 (set-buffer gnus-dribble-buffer)
16897 (buffer-size)))))
16898 (gnus-message 4 "(No changes need to be saved)")
16899 (run-hooks 'gnus-save-newsrc-hook)
16900 (if gnus-slave
16901 (gnus-slave-save-newsrc)
16902 ;; Save .newsrc.
16903 (when gnus-save-newsrc-file
16904 (gnus-message 5 "Saving %s..." gnus-current-startup-file)
16905 (gnus-gnus-to-newsrc-format)
16906 (gnus-message 5 "Saving %s...done" gnus-current-startup-file))
16907 ;; Save .newsrc.eld.
16908 (set-buffer (get-buffer-create " *Gnus-newsrc*"))
16909 (make-local-variable 'version-control)
16910 (setq version-control 'never)
16911 (setq buffer-file-name
16912 (concat gnus-current-startup-file ".eld"))
16913 (setq default-directory (file-name-directory buffer-file-name))
16914 (gnus-add-current-to-buffer-list)
16915 (buffer-disable-undo (current-buffer))
16916 (erase-buffer)
16917 (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
16918 (gnus-gnus-to-quick-newsrc-format)
16919 (run-hooks 'gnus-save-quick-newsrc-hook)
16920 (save-buffer)
16921 (kill-buffer (current-buffer))
16922 (gnus-message
16923 5 "Saving %s.eld...done" gnus-current-startup-file))
16924 (gnus-dribble-delete-file)
16925 (gnus-group-set-mode-line)))))
16927 (defun gnus-gnus-to-quick-newsrc-format ()
16928 "Insert Gnus variables such as gnus-newsrc-alist in lisp format."
16929 (insert ";; Gnus startup file.\n")
16930 (insert ";; Never delete this file - touch .newsrc instead to force Gnus\n")
16931 (insert ";; to read .newsrc.\n")
16932 (insert "(setq gnus-newsrc-file-version "
16933 (prin1-to-string gnus-version) ")\n")
16934 (let ((variables
16935 (if gnus-save-killed-list gnus-variable-list
16936 ;; Remove the `gnus-killed-list' from the list of variables
16937 ;; to be saved, if required.
16938 (delq 'gnus-killed-list (copy-sequence gnus-variable-list))))
16939 ;; Peel off the "dummy" group.
16940 (gnus-newsrc-alist (cdr gnus-newsrc-alist))
16941 variable)
16942 ;; Insert the variables into the file.
16943 (while variables
16944 (when (and (boundp (setq variable (pop variables)))
16945 (symbol-value variable))
16946 (insert "(setq " (symbol-name variable) " '")
16947 (prin1 (symbol-value variable) (current-buffer))
16948 (insert ")\n")))))
16950 (defun gnus-gnus-to-newsrc-format ()
16951 ;; Generate and save the .newsrc file.
16952 (save-excursion
16953 (set-buffer (create-file-buffer gnus-current-startup-file))
16954 (let ((newsrc (cdr gnus-newsrc-alist))
16955 (standard-output (current-buffer))
16956 info ranges range method)
16957 (setq buffer-file-name gnus-current-startup-file)
16958 (setq default-directory (file-name-directory buffer-file-name))
16959 (buffer-disable-undo (current-buffer))
16960 (erase-buffer)
16961 ;; Write options.
16962 (if gnus-newsrc-options (insert gnus-newsrc-options))
16963 ;; Write subscribed and unsubscribed.
16964 (while (setq info (pop newsrc))
16965 ;; Don't write foreign groups to .newsrc.
16966 (when (or (null (setq method (gnus-info-method info)))
16967 (equal method "native")
16968 (gnus-server-equal method gnus-select-method))
16969 (insert (gnus-info-group info)
16970 (if (> (gnus-info-level info) gnus-level-subscribed)
16971 "!" ":"))
16972 (when (setq ranges (gnus-info-read info))
16973 (insert " ")
16974 (if (not (listp (cdr ranges)))
16975 (if (= (car ranges) (cdr ranges))
16976 (princ (car ranges))
16977 (princ (car ranges))
16978 (insert "-")
16979 (princ (cdr ranges)))
16980 (while (setq range (pop ranges))
16981 (if (or (atom range) (= (car range) (cdr range)))
16982 (princ (or (and (atom range) range) (car range)))
16983 (princ (car range))
16984 (insert "-")
16985 (princ (cdr range)))
16986 (if ranges (insert ",")))))
16987 (insert "\n")))
16988 (make-local-variable 'version-control)
16989 (setq version-control 'never)
16990 ;; It has been reported that sometime the modtime on the .newsrc
16991 ;; file seems to be off. We really do want to overwrite it, so
16992 ;; we clear the modtime here before saving. It's a bit odd,
16993 ;; though...
16994 ;; sometimes the modtime clear isn't sufficient. most brute force:
16995 ;; delete the silly thing entirely first. but this fails to provide
16996 ;; such niceties as .newsrc~ creation.
16997 (if gnus-modtime-botch
16998 (delete-file gnus-startup-file)
16999 (clear-visited-file-modtime))
17000 (run-hooks 'gnus-save-standard-newsrc-hook)
17001 (save-buffer)
17002 (kill-buffer (current-buffer)))))
17006 ;;; Slave functions.
17009 (defun gnus-slave-save-newsrc ()
17010 (save-excursion
17011 (set-buffer gnus-dribble-buffer)
17012 (let ((slave-name
17013 (make-temp-name (concat gnus-current-startup-file "-slave-"))))
17014 (write-region (point-min) (point-max) slave-name nil 'nomesg))))
17016 (defun gnus-master-read-slave-newsrc ()
17017 (let ((slave-files
17018 (directory-files
17019 (file-name-directory gnus-current-startup-file)
17020 t (concat
17021 "^" (regexp-quote
17022 (concat
17023 (file-name-nondirectory gnus-current-startup-file)
17024 "-slave-")))
17026 file)
17027 (if (not slave-files)
17028 () ; There are no slave files to read.
17029 (gnus-message 7 "Reading slave newsrcs...")
17030 (save-excursion
17031 (set-buffer (get-buffer-create " *gnus slave*"))
17032 (buffer-disable-undo (current-buffer))
17033 (setq slave-files
17034 (sort (mapcar (lambda (file)
17035 (list (nth 5 (file-attributes file)) file))
17036 slave-files)
17037 (lambda (f1 f2)
17038 (or (< (caar f1) (caar f2))
17039 (< (nth 1 (car f1)) (nth 1 (car f2)))))))
17040 (while slave-files
17041 (erase-buffer)
17042 (setq file (nth 1 (car slave-files)))
17043 (insert-file-contents file)
17044 (if (condition-case ()
17045 (progn
17046 (eval-buffer (current-buffer))
17048 (error
17049 (gnus-error 3.2 "Possible error in %s" file)
17050 nil))
17051 (or gnus-slave ; Slaves shouldn't delete these files.
17052 (condition-case ()
17053 (delete-file file)
17054 (error nil))))
17055 (setq slave-files (cdr slave-files))))
17056 (gnus-message 7 "Reading slave newsrcs...done"))))
17060 ;;; Group description.
17063 (defun gnus-read-all-descriptions-files ()
17064 (let ((methods (cons gnus-select-method
17065 (nconc
17066 (when (gnus-archive-server-wanted-p)
17067 (list "archive"))
17068 gnus-secondary-select-methods))))
17069 (while methods
17070 (gnus-read-descriptions-file (car methods))
17071 (setq methods (cdr methods)))
17074 (defun gnus-read-descriptions-file (&optional method)
17075 (let ((method (or method gnus-select-method))
17076 group)
17077 (when (stringp method)
17078 (setq method (gnus-server-to-method method)))
17079 ;; We create the hashtable whether we manage to read the desc file
17080 ;; to avoid trying to re-read after a failed read.
17081 (or gnus-description-hashtb
17082 (setq gnus-description-hashtb
17083 (gnus-make-hashtable (length gnus-active-hashtb))))
17084 ;; Mark this method's desc file as read.
17085 (gnus-sethash (gnus-group-prefixed-name "" method) "Has read"
17086 gnus-description-hashtb)
17088 (gnus-message 5 "Reading descriptions file via %s..." (car method))
17089 (cond
17090 ((not (gnus-check-server method))
17091 (gnus-message 1 "Couldn't open server")
17092 nil)
17093 ((not (gnus-request-list-newsgroups method))
17094 (gnus-message 1 "Couldn't read newsgroups descriptions")
17095 nil)
17097 (save-excursion
17098 (save-restriction
17099 (set-buffer nntp-server-buffer)
17100 (goto-char (point-min))
17101 (when (or (search-forward "\n.\n" nil t)
17102 (goto-char (point-max)))
17103 (beginning-of-line)
17104 (narrow-to-region (point-min) (point)))
17105 ;; If these are groups from a foreign select method, we insert the
17106 ;; group prefix in front of the group names.
17107 (and method (not (gnus-server-equal
17108 (gnus-server-get-method nil method)
17109 (gnus-server-get-method nil gnus-select-method)))
17110 (let ((prefix (gnus-group-prefixed-name "" method)))
17111 (goto-char (point-min))
17112 (while (and (not (eobp))
17113 (progn (insert prefix)
17114 (zerop (forward-line 1)))))))
17115 (goto-char (point-min))
17116 (while (not (eobp))
17117 ;; If we get an error, we set group to 0, which is not a
17118 ;; symbol...
17119 (setq group
17120 (condition-case ()
17121 (let ((obarray gnus-description-hashtb))
17122 ;; Group is set to a symbol interned in this
17123 ;; hash table.
17124 (read nntp-server-buffer))
17125 (error 0)))
17126 (skip-chars-forward " \t")
17127 ;; ... which leads to this line being effectively ignored.
17128 (and (symbolp group)
17129 (set group (buffer-substring
17130 (point) (progn (end-of-line) (point)))))
17131 (forward-line 1))))
17132 (gnus-message 5 "Reading descriptions file...done")
17133 t))))
17135 (defun gnus-group-get-description (group)
17136 "Get the description of a group by sending XGTITLE to the server."
17137 (when (gnus-request-group-description group)
17138 (save-excursion
17139 (set-buffer nntp-server-buffer)
17140 (goto-char (point-min))
17141 (when (looking-at "[^ \t]+[ \t]+\\(.*\\)")
17142 (match-string 1)))))
17146 ;;; Buffering of read articles.
17149 (defvar gnus-backlog-buffer " *Gnus Backlog*")
17150 (defvar gnus-backlog-articles nil)
17151 (defvar gnus-backlog-hashtb nil)
17153 (defun gnus-backlog-buffer ()
17154 "Return the backlog buffer."
17155 (or (get-buffer gnus-backlog-buffer)
17156 (save-excursion
17157 (set-buffer (get-buffer-create gnus-backlog-buffer))
17158 (buffer-disable-undo (current-buffer))
17159 (setq buffer-read-only t)
17160 (gnus-add-current-to-buffer-list)
17161 (get-buffer gnus-backlog-buffer))))
17163 (defun gnus-backlog-setup ()
17164 "Initialize backlog variables."
17165 (unless gnus-backlog-hashtb
17166 (setq gnus-backlog-hashtb (make-vector 1023 0))))
17168 (gnus-add-shutdown 'gnus-backlog-shutdown 'gnus)
17170 (defun gnus-backlog-shutdown ()
17171 "Clear all backlog variables and buffers."
17172 (when (get-buffer gnus-backlog-buffer)
17173 (kill-buffer gnus-backlog-buffer))
17174 (setq gnus-backlog-hashtb nil
17175 gnus-backlog-articles nil))
17177 (defun gnus-backlog-enter-article (group number buffer)
17178 (gnus-backlog-setup)
17179 (let ((ident (intern (concat group ":" (int-to-string number))
17180 gnus-backlog-hashtb))
17182 (if (memq ident gnus-backlog-articles)
17183 () ; It's already kept.
17184 ;; Remove the oldest article, if necessary.
17185 (and (numberp gnus-keep-backlog)
17186 (>= (length gnus-backlog-articles) gnus-keep-backlog)
17187 (gnus-backlog-remove-oldest-article))
17188 (setq gnus-backlog-articles (cons ident gnus-backlog-articles))
17189 ;; Insert the new article.
17190 (save-excursion
17191 (set-buffer (gnus-backlog-buffer))
17192 (let (buffer-read-only)
17193 (goto-char (point-max))
17194 (or (bolp) (insert "\n"))
17195 (setq b (point))
17196 (insert-buffer-substring buffer)
17197 ;; Tag the beginning of the article with the ident.
17198 (gnus-put-text-property b (1+ b) 'gnus-backlog ident))))))
17200 (defun gnus-backlog-remove-oldest-article ()
17201 (save-excursion
17202 (set-buffer (gnus-backlog-buffer))
17203 (goto-char (point-min))
17204 (if (zerop (buffer-size))
17205 () ; The buffer is empty.
17206 (let ((ident (get-text-property (point) 'gnus-backlog))
17207 buffer-read-only)
17208 ;; Remove the ident from the list of articles.
17209 (when ident
17210 (setq gnus-backlog-articles (delq ident gnus-backlog-articles)))
17211 ;; Delete the article itself.
17212 (delete-region
17213 (point) (next-single-property-change
17214 (1+ (point)) 'gnus-backlog nil (point-max)))))))
17216 (defun gnus-backlog-remove-article (group number)
17217 "Remove article NUMBER in GROUP from the backlog."
17218 (when (numberp number)
17219 (gnus-backlog-setup)
17220 (let ((ident (intern (concat group ":" (int-to-string number))
17221 gnus-backlog-hashtb))
17222 beg end)
17223 (when (memq ident gnus-backlog-articles)
17224 ;; It was in the backlog.
17225 (save-excursion
17226 (set-buffer (gnus-backlog-buffer))
17227 (let (buffer-read-only)
17228 (when (setq beg (text-property-any
17229 (point-min) (point-max) 'gnus-backlog
17230 ident))
17231 ;; Find the end (i. e., the beginning of the next article).
17232 (setq end
17233 (next-single-property-change
17234 (1+ beg) 'gnus-backlog (current-buffer) (point-max)))
17235 (delete-region beg end)
17236 ;; Return success.
17237 t)))))))
17239 (defun gnus-backlog-request-article (group number buffer)
17240 (when (numberp number)
17241 (gnus-backlog-setup)
17242 (let ((ident (intern (concat group ":" (int-to-string number))
17243 gnus-backlog-hashtb))
17244 beg end)
17245 (when (memq ident gnus-backlog-articles)
17246 ;; It was in the backlog.
17247 (save-excursion
17248 (set-buffer (gnus-backlog-buffer))
17249 (if (not (setq beg (text-property-any
17250 (point-min) (point-max) 'gnus-backlog
17251 ident)))
17252 ;; It wasn't in the backlog after all.
17253 (ignore
17254 (setq gnus-backlog-articles (delq ident gnus-backlog-articles)))
17255 ;; Find the end (i. e., the beginning of the next article).
17256 (setq end
17257 (next-single-property-change
17258 (1+ beg) 'gnus-backlog (current-buffer) (point-max)))))
17259 (let ((buffer-read-only nil))
17260 (erase-buffer)
17261 (insert-buffer-substring gnus-backlog-buffer beg end)
17262 t)))))
17264 ;; Allow redefinition of Gnus functions.
17266 (gnus-ems-redefine)
17268 (provide 'gnus)
17270 ;;; gnus.el ends here