(bookmark-write): Add numbered backups for bookmark file.
[emacs.git] / lisp / gnus.el
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1 ;;; GNUS: an NNTP-based News Reader for GNU Emacs
2 ;; Copyright (C) 1987, 1988, 1989, 1990, 1993 Free Software Foundation, Inc.
4 ;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
5 ;; Version: $Header: /home/gd/gnu/emacs/19.0/lisp/RCS/gnus.el,v 1.26 1993/07/28 08:35:38 rms Exp eggert $
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
22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 ;;; Commentary:
26 ;; How to Install GNUS:
27 ;; (0) First of all, remove GNUS related OLD *.elc files (at least
28 ;; nntp.elc).
29 ;; (1) Unshar gnus.el, gnuspost.el, gnusmail.el, gnusmisc.el, and
30 ;; nntp.el.
31 ;; (2) byte-compile-file nntp.el, gnus.el, gnuspost.el, gnusmail.el,
32 ;; and gnusmisc.el. If you have a local news spool,
33 ;; byte-compile-file nnspool.el, too.
34 ;; (3) Define three environment variables in .login file as follows:
36 ;; setenv NNTPSERVER flab
37 ;; setenv DOMAINNAME "stars.flab.Fujitsu.CO.JP"
38 ;; setenv ORGANIZATION "Fujitsu Laboratories Ltd., Kawasaki, Japan."
40 ;; Or instead, define lisp variables in your .emacs, site-init.el,
41 ;; or default.el as follows:
43 ;; (setq gnus-nntp-server "flab")
44 ;; (setq gnus-local-domain "stars.flab.Fujitsu.CO.JP")
45 ;; (setq gnus-local-organization "Fujitsu Laboratories Ltd., ...")
47 ;; If the function (system-name) returns the full internet name,
48 ;; you don't have to define the domain.
50 ;; (4) You may have to define NNTP service name as number 119.
52 ;; (setq gnus-nntp-service 119)
54 ;; Or, if you'd like to use a local news spool directly in stead
55 ;; of NNTP, install nnspool.el and set the variable to nil as
56 ;; follows:
58 ;; (setq gnus-nntp-service nil)
60 ;; (5) If you'd like to use the GENERICFROM feature like the Bnews,
61 ;; define the variable as follows:
63 ;; (setq gnus-use-generic-from t)
65 ;; (6) Define autoload entries in .emacs file as follows:
67 ;; (autoload 'gnus "gnus" "Read network news." t)
68 ;; (autoload 'gnus-post-news "gnuspost" "Post a news." t)
70 ;; (7) Read nntp.el if you have problems with NNTP or kanji handling.
72 ;; (8) Install mhspool.el, tcp.el, and tcp.c if it is necessary.
74 ;; mhspool.el is a package for reading articles or mail in your
75 ;; private directory using GNUS.
77 ;; tcp.el and tcp.c are necessary if and only if your Emacs does
78 ;; not have the function `open-network-stream' which is used for
79 ;; communicating with NNTP server inside Emacs.
81 ;; (9) Install an Info file generated from the texinfo manual gnus.texinfo.
83 ;; If you are not allowed to create the Info file to the standard
84 ;; Info-directory, create it in your private directory and set the
85 ;; variable gnus-info-directory to that directory.
87 ;; For getting more information about GNUS, consult USENET newsgorup
88 ;; gnu.emacs.gnus.
90 ;; TO DO:
91 ;; (1) Incremental update of active info.
92 ;; (2) Asynchronous transmission of large messages.
94 ;;; Code:
96 (provide 'gnus)
97 (require 'nntp)
98 (require 'mail-utils)
100 (defvar gnus-default-nntp-server nil
101 "*Specify default NNTP server.
102 This variable should be defined in paths.el.")
104 (defvar gnus-nntp-server (or (getenv "NNTPSERVER") gnus-default-nntp-server)
105 "*The name of the host running NNTP server.
106 If it is a string such as `:DIRECTORY', the user's private DIRECTORY
107 is used as a news spool.
108 Initialized from the NNTPSERVER environment variable.")
110 (defvar gnus-nntp-service "nntp"
111 "*NNTP service name (\"nntp\" or 119).
112 Go to a local news spool if its value is nil.")
114 (defvar gnus-startup-file "~/.newsrc"
115 "*Your `.newsrc' file. Use `.newsrc-SERVER' instead if exists.")
117 (defvar gnus-signature-file "~/.signature"
118 "*Your `.signature' file. Use `.signature-DISTRIBUTION' instead if exists.")
120 (defvar gnus-use-cross-reference t
121 "*Specifies what to do with cross references (Xref: field).
122 If nil, ignore cross references. If t, mark articles as read in
123 subscribed newsgroups. Otherwise, if not nil nor t, mark articles as
124 read in all newsgroups.")
126 (defvar gnus-use-followup-to t
127 "*Specifies what to do with Followup-To: field.
128 If nil, ignore followup-to: field. If t, use its value except for
129 `poster'. Otherwise, if not nil nor t, always use its value.")
131 (defvar gnus-large-newsgroup 50
132 "*The number of articles which indicates a large newsgroup.
133 If the number of articles in a newsgroup is greater than the value,
134 confirmation is required for selecting the newsgroup.")
136 (defvar gnus-author-copy (getenv "AUTHORCOPY")
137 "*File name saving a copy of an article posted using FCC: field.
138 Initialized from the AUTHORCOPY environment variable.
140 Articles are saved using a function specified by the the variable
141 `gnus-author-copy-saver' (`rmail-output' is default) if a file name is
142 given. Instead, if the first character of the name is `|', the
143 contents of the article is piped out to the named program. It is
144 possible to save an article in an MH folder as follows:
146 (setq gnus-author-copy \"|/usr/local/lib/mh/rcvstore +Article\")")
148 (defvar gnus-author-copy-saver (function rmail-output)
149 "*A function called with a file name to save an author copy to.
150 The default function is `rmail-output' which saves in Unix mailbox format.")
152 (defvar gnus-use-long-file-name
153 (not (memq system-type '(usg-unix-v xenix)))
154 "*Non-nil means that a newsgroup name is used as a default file name
155 to save articles to. If it's nil, the directory form of a newsgroup is
156 used instead.")
158 (defvar gnus-article-save-directory (getenv "SAVEDIR")
159 "*A directory name to save articles to (default to ~/News).
160 Initialized from the SAVEDIR environment variable.")
162 (defvar gnus-default-article-saver (function gnus-summary-save-in-rmail)
163 "*A function to save articles in your favorite format.
164 The function must be interactively callable (in other words, it must
165 be an Emacs command).
167 GNUS provides the following functions:
168 gnus-summary-save-in-rmail (in Rmail format)
169 gnus-summary-save-in-mail (in Unix mail format)
170 gnus-summary-save-in-folder (in an MH folder)
171 gnus-summary-save-in-file (in article format).")
173 (defvar gnus-rmail-save-name (function gnus-plain-save-name)
174 "*A function generating a file name to save articles in Rmail format.
175 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
177 (defvar gnus-mail-save-name (function gnus-plain-save-name)
178 "*A function generating a file name to save articles in Unix mail format.
179 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
181 (defvar gnus-folder-save-name (function gnus-folder-save-name)
182 "*A function generating a file name to save articles in MH folder.
183 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER.")
185 (defvar gnus-file-save-name (function gnus-numeric-save-name)
186 "*A function generating a file name to save articles in article format.
187 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
189 (defvar gnus-kill-file-name "KILL"
190 "*File name of a KILL file.")
192 (defvar gnus-novice-user t
193 "*Non-nil means that you are a novice to USENET.
194 If non-nil, verbose messages may be displayed
195 or your confirmations may be required.")
197 (defvar gnus-interactive-catchup t
198 "*Require your confirmation when catching up a newsgroup if non-nil.")
200 (defvar gnus-interactive-post t
201 "*Newsgroup, subject, and distribution will be asked for if non-nil.")
203 (defvar gnus-interactive-exit t
204 "*Require your confirmation when exiting GNUS if non-nil.")
206 (defvar gnus-user-login-name nil
207 "*The login name of the user.
208 Got from the USER and LOGNAME environment variable if undefined.")
210 (defvar gnus-user-full-name nil
211 "*The full name of the user.
212 Got from the NAME environment variable if undefined.")
214 (defvar gnus-show-mime nil
215 "*Show MIME message if non-nil.")
217 (defvar gnus-show-threads t
218 "*Show conversation threads in Summary Mode if non-nil.")
220 (defvar gnus-thread-hide-subject t
221 "*Non-nil means hide subjects for thread subtrees.")
223 (defvar gnus-thread-hide-subtree nil
224 "*Non-nil means hide thread subtrees initially.
225 If non-nil, you have to run the command `gnus-summary-show-thread' by
226 hand or by using `gnus-select-article-hook' to show hidden threads.")
228 (defvar gnus-thread-hide-killed t
229 "*Non-nil means hide killed thread subtrees automatically.")
231 (defvar gnus-thread-ignore-subject nil
232 "*Don't take care of subject differences, but only references if non-nil.
233 If it is non-nil, some commands work with subjects do not work properly.")
235 (defvar gnus-thread-indent-level 4
236 "*Indentation of thread subtrees.")
238 (defvar gnus-ignored-newsgroups "^to\\..*$"
239 "*A regexp to match uninteresting newsgroups in the active file.
240 Any lines in the active file matching this regular expression are
241 removed from the newsgroup list before anything else is done to it,
242 thus making them effectively invisible.")
244 (defvar gnus-ignored-headers
245 "^Path:\\|^Posting-Version:\\|^Article-I.D.:\\|^Expires:\\|^Date-Received:\\|^References:\\|^Control:\\|^Xref:\\|^Lines:\\|^Posted:\\|^Relay-Version:\\|^Message-ID:\\|^Nf-ID:\\|^Nf-From:\\|^Approved:\\|^Sender:"
246 "*All random fields within the header of a message.")
248 (defvar gnus-required-headers
249 '(From Date Newsgroups Subject Message-ID Path Organization Distribution)
250 "*All required fields for articles you post.
251 RFC977 and RFC1036 require From, Date, Newsgroups, Subject, Message-ID
252 and Path fields. Organization, Distribution and Lines are optional.
253 If you want GNUS not to insert some field, remove it from the
254 variable.")
256 (defvar gnus-show-all-headers nil
257 "*Show all headers of an article if non-nil.")
259 (defvar gnus-save-all-headers t
260 "*Save all headers of an article if non-nil.")
262 (defvar gnus-optional-headers (function gnus-optional-lines-and-from)
263 "*A function generating a optional string displayed in GNUS Summary
264 mode buffer. The function is called with an article HEADER. The
265 result must be a string excluding `[' and `]'.")
267 (defvar gnus-auto-extend-newsgroup t
268 "*Extend visible articles to forward and backward if non-nil.")
270 (defvar gnus-auto-select-first t
271 "*Select the first unread article automagically if non-nil.
272 If you want to prevent automatic selection of the first unread article
273 in some newsgroups, set the variable to nil in `gnus-select-group-hook'
274 or `gnus-apply-kill-hook'.")
276 (defvar gnus-auto-select-next t
277 "*Select the next newsgroup automagically if non-nil.
278 If the value is t and the next newsgroup is empty, GNUS will exit
279 Summary mode and go back to Group mode. If the value is neither nil
280 nor t, GNUS will select the following unread newsgroup. Especially, if
281 the value is the symbol `quietly', the next unread newsgroup will be
282 selected without any confirmations.")
284 (defvar gnus-auto-select-same nil
285 "*Select the next article with the same subject automagically if non-nil.")
287 (defvar gnus-auto-center-summary t
288 "*Always center the current summary in GNUS Summary window if non-nil.")
290 (defvar gnus-auto-mail-to-author nil
291 "*Insert `To: author' of the article when following up if non-nil.
292 Mail is sent using the function specified by the variable
293 `gnus-mail-send-method'.")
295 (defvar gnus-break-pages t
296 "*Break an article into pages if non-nil.
297 Page delimiter is specified by the variable `gnus-page-delimiter'.")
299 (defvar gnus-page-delimiter "^\^L"
300 "*Regexp describing line-beginnings that separate pages of news article.")
302 (defvar gnus-digest-show-summary t
303 "*Show a summary of undigestified messages if non-nil.")
305 (defvar gnus-digest-separator "^Subject:[ \t]"
306 "*Regexp that separates messages in a digest article.")
308 (defvar gnus-use-full-window t
309 "*Non-nil means to take up the entire screen of Emacs.")
311 (defvar gnus-window-configuration
312 '((summary (0 1 0))
313 (newsgroups (1 0 0))
314 (article (0 3 10)))
315 "*Specify window configurations for each action.
316 The format of the variable is a list of (ACTION (G S A)), where G, S,
317 and A are the relative height of Group, Summary, and Article windows,
318 respectively. ACTION is `summary', `newsgroups', or `article'.")
320 (defvar gnus-show-mime-method (function metamail-buffer)
321 "*Function to process a MIME message.
322 The function is expected to process current buffer as a MIME message.")
324 (defvar gnus-mail-reply-method
325 (function gnus-mail-reply-using-mail)
326 "*Function to compose reply mail.
327 The function `gnus-mail-reply-using-mail' uses usual sendmail mail
328 program. The function `gnus-mail-reply-using-mhe' uses the MH-E mail
329 program. You can use yet another program by customizing this variable.")
331 (defvar gnus-mail-forward-method
332 (function gnus-mail-forward-using-mail)
333 "*Function to forward current message to another user.
334 The function `gnus-mail-reply-using-mail' uses usual sendmail mail
335 program. You can use yet another program by customizing this variable.")
337 (defvar gnus-mail-other-window-method
338 (function gnus-mail-other-window-using-mail)
339 "*Function to compose mail in other window.
340 The function `gnus-mail-other-window-using-mail' uses the usual sendmail
341 mail program. The function `gnus-mail-other-window-using-mhe' uses the MH-E
342 mail program. You can use yet another program by customizing this variable.")
344 (defvar gnus-mail-send-method send-mail-function
345 "*Function to mail a message too which is being posted as an article.
346 The message must have To: or Cc: field. The default is copied from
347 the variable `send-mail-function'.")
349 (defvar gnus-subscribe-newsgroup-method
350 (function gnus-subscribe-alphabetically)
351 "*Function called with a newsgroup name when new newsgroup is found.
352 The function `gnus-subscribe-randomly' inserts a new newsgroup a the
353 beginning of newsgroups. The function `gnus-subscribe-alphabetically'
354 inserts it in strict alphabetic order. The function
355 `gnus-subscribe-hierarchically' inserts it in hierarchical newsgroup
356 order. The function `gnus-subscribe-interactively' asks for your decision.")
358 (defvar gnus-group-mode-hook nil
359 "*A hook for GNUS Group Mode.")
361 (defvar gnus-summary-mode-hook nil
362 "*A hook for GNUS Summary Mode.")
364 (defvar gnus-article-mode-hook nil
365 "*A hook for GNUS Article Mode.")
367 (defvar gnus-kill-file-mode-hook nil
368 "*A hook for GNUS KILL File Mode.")
370 (defvar gnus-open-server-hook nil
371 "*A hook called just before opening connection to news server.")
373 (defvar gnus-startup-hook nil
374 "*A hook called at start up time.
375 This hook is called after GNUS is connected to the NNTP server. So, it
376 is possible to change the behavior of GNUS according to the selected
377 NNTP server.")
379 (defvar gnus-group-prepare-hook nil
380 "*A hook called after newsgroup list is created in the Newsgroup buffer.
381 If you want to modify the Newsgroup buffer, you can use this hook.")
383 (defvar gnus-summary-prepare-hook nil
384 "*A hook called after summary list is created in the Summary buffer.
385 If you want to modify the Summary buffer, you can use this hook.")
387 (defvar gnus-article-prepare-hook nil
388 "*A hook called after an article is prepared in the Article buffer.
389 If you want to run a special decoding program like nkf, use this hook.")
391 (defvar gnus-select-group-hook nil
392 "*A hook called when a newsgroup is selected.
393 If you want to sort Summary buffer by date and then by subject, you
394 can use the following hook:
396 \(setq gnus-select-group-hook
397 (list
398 (function
399 (lambda ()
400 ;; First of all, sort by date.
401 (gnus-keysort-headers
402 (function string-lessp)
403 (function
404 (lambda (a)
405 (gnus-sortable-date (gnus-header-date a)))))
406 ;; Then sort by subject string ignoring `Re:'.
407 ;; If case-fold-search is non-nil, case of letters is ignored.
408 (gnus-keysort-headers
409 (function string-lessp)
410 (function
411 (lambda (a)
412 (if case-fold-search
413 (downcase (gnus-simplify-subject (gnus-header-subject a) t))
414 (gnus-simplify-subject (gnus-header-subject a) t)))))
415 ))))
417 If you'd like to simplify subjects like the
418 `gnus-summary-next-same-subject' command does, you can use the
419 following hook:
421 \(setq gnus-select-group-hook
422 (list
423 (function
424 (lambda ()
425 (mapcar (function
426 (lambda (header)
427 (nntp-set-header-subject
428 header
429 (gnus-simplify-subject
430 (gnus-header-subject header) 're-only))))
431 gnus-newsgroup-headers)))))
433 In some newsgroups author name is meaningless. It is possible to
434 prevent listing author names in GNUS Summary buffer as follows:
436 \(setq gnus-select-group-hook
437 (list
438 (function
439 (lambda ()
440 (cond ((string-equal \"comp.sources.unix\" gnus-newsgroup-name)
441 (setq gnus-optional-headers
442 (function gnus-optional-lines)))
444 (setq gnus-optional-headers
445 (function gnus-optional-lines-and-from))))))))")
447 (defvar gnus-select-article-hook
448 '(gnus-summary-show-thread)
449 "*A hook called when an article is selected.
450 The default hook shows conversation thread subtrees of the selected
451 article automatically using `gnus-summary-show-thread'.
453 If you'd like to run RMAIL on a digest article automagically, you can
454 use the following hook:
456 \(setq gnus-select-article-hook
457 (list
458 (function
459 (lambda ()
460 (gnus-summary-show-thread)
461 (cond ((string-equal \"comp.sys.sun\" gnus-newsgroup-name)
462 (gnus-summary-rmail-digest))
463 ((and (string-equal \"comp.text\" gnus-newsgroup-name)
464 (string-match \"^TeXhax Digest\"
465 (gnus-header-subject gnus-current-headers)))
466 (gnus-summary-rmail-digest)
467 ))))))")
469 (defvar gnus-select-digest-hook
470 (list
471 (function
472 (lambda ()
473 ;; Reply-To: is required by `undigestify-rmail-message'.
474 (or (mail-position-on-field "Reply-to" t)
475 (progn
476 (mail-position-on-field "Reply-to")
477 (insert (gnus-fetch-field "From")))))))
478 "*A hook called when reading digest messages using Rmail.
479 This hook can be used to modify incomplete digest articles as follows
480 \(this is the default):
482 \(setq gnus-select-digest-hook
483 (list
484 (function
485 (lambda ()
486 ;; Reply-To: is required by `undigestify-rmail-message'.
487 (or (mail-position-on-field \"Reply-to\" t)
488 (progn
489 (mail-position-on-field \"Reply-to\")
490 (insert (gnus-fetch-field \"From\"))))))))")
492 (defvar gnus-rmail-digest-hook nil
493 "*A hook called when reading digest messages using Rmail.
494 This hook is intended to customize Rmail mode for reading digest articles.")
496 (defvar gnus-apply-kill-hook '(gnus-apply-kill-file)
497 "*A hook called when a newsgroup is selected and summary list is prepared.
498 This hook is intended to apply a KILL file to the selected newsgroup.
499 The function `gnus-apply-kill-file' is called by default.
501 Since a general KILL file is too heavy to use only for a few
502 newsgroups, I recommend you to use a lighter hook function. For
503 example, if you'd like to apply a KILL file to articles which contains
504 a string `rmgroup' in subject in newsgroup `control', you can use the
505 following hook:
507 \(setq gnus-apply-kill-hook
508 (list
509 (function
510 (lambda ()
511 (cond ((string-match \"control\" gnus-newsgroup-name)
512 (gnus-kill \"Subject\" \"rmgroup\")
513 (gnus-expunge \"X\")))))))")
515 (defvar gnus-mark-article-hook
516 (list
517 (function
518 (lambda ()
519 (or (memq gnus-current-article gnus-newsgroup-marked)
520 (gnus-summary-mark-as-read gnus-current-article))
521 (gnus-summary-set-current-mark "+"))))
522 "*A hook called when an article is selected at the first time.
523 The hook is intended to mark an article as read (or unread)
524 automatically when it is selected.
526 If you'd like to mark as unread (-) instead, use the following hook:
528 \(setq gnus-mark-article-hook
529 (list
530 (function
531 (lambda ()
532 (gnus-summary-mark-as-unread gnus-current-article)
533 (gnus-summary-set-current-mark \"+\")))))")
535 (defvar gnus-prepare-article-hook (list (function gnus-inews-insert-signature))
536 "*A hook called after preparing body, but before preparing header fields.
537 The default hook (`gnus-inews-insert-signature') inserts a signature
538 file specified by the variable `gnus-signature-file'.")
540 (defvar gnus-inews-article-hook (list (function gnus-inews-do-fcc))
541 "*A hook called before finally posting an article.
542 The default hook (`gnus-inews-do-fcc') does FCC processing (save article
543 to a file).")
545 (defvar gnus-exit-group-hook nil
546 "*A hook called when exiting (not quitting) Summary mode.
547 If your machine is so slow that exiting from Summary mode takes very
548 long time, set the variable `gnus-use-cross-reference' to nil. This
549 inhibits marking articles as read using cross-reference information.")
551 (defvar gnus-suspend-gnus-hook nil
552 "*A hook called when suspending (not exiting) GNUS.")
554 (defvar gnus-exit-gnus-hook nil
555 "*A hook called when exiting (not suspending) GNUS.")
557 (defvar gnus-save-newsrc-hook nil
558 "*A hook called when saving the newsrc file.
559 This hook is called before saving the `.newsrc' file.")
562 ;; Site dependent variables. You have to define these variables in
563 ;; site-init.el, default.el or your .emacs.
565 (defvar gnus-local-timezone nil
566 "*Local time zone.
567 This value is used only if `current-time-zone' does not work in your Emacs.
568 It specifies the GMT offset, i.e. a decimal integer
569 of the form +-HHMM giving the hours and minutes ahead of (i.e. east of) GMT.
570 For example, +0900 should be used in Japan, since it is 9 hours ahead of GMT.
572 For backwards compatibility, it may also be a string like \"JST\",
573 but strings are obsolescent: you should use numeric offsets instead.")
575 (defvar gnus-local-domain nil
576 "*Local domain name without a host name like: \"stars.flab.Fujitsu.CO.JP\"
577 The `DOMAINNAME' environment variable is used instead if defined. If
578 the function (system-name) returns the full internet name, there is no
579 need to define the name.")
581 (defvar gnus-local-organization nil
582 "*Local organization like: \"Fujitsu Laboratories Ltd., Kawasaki, Japan.\"
583 The `ORGANIZATION' environment variable is used instead if defined.")
585 (defvar gnus-local-distributions '("local" "world")
586 "*List of distributions.
587 The first element in the list is used as default. If distributions
588 file is available, its content is also used.")
590 (defvar gnus-use-generic-from nil
591 "*If nil, prepend local host name to the defined domain in the From:
592 field; if stringp, use this; if non-nil, strip of the local host name.")
594 (defvar gnus-use-generic-path nil
595 "*If nil, use the NNTP server name in the Path: field; if stringp,
596 use this; if non-nil, use no host name (user name only)")
598 ;; Internal variables.
600 (defconst gnus-version "GNUS 4.1"
601 "Version numbers of this version of GNUS.")
603 (defconst gnus-emacs-version
604 (progn
605 (string-match "[0-9]*" emacs-version)
606 (string-to-int (substring emacs-version
607 (match-beginning 0) (match-end 0))))
608 "Major version number of this emacs.")
610 (defvar gnus-info-nodes
611 '((gnus-group-mode "(gnus)Newsgroup Commands")
612 (gnus-summary-mode "(gnus)Summary Commands")
613 (gnus-article-mode "(gnus)Article Commands")
614 (gnus-kill-file-mode "(gnus)Kill File")
615 (gnus-browse-killed-mode "(gnus)Maintaining Subscriptions"))
616 "Assoc list of major modes and related Info nodes.")
618 ;; Alist syntax is different from that of 3.14.3.
619 (defvar gnus-access-methods
620 '((nntp
621 (gnus-retrieve-headers nntp-retrieve-headers)
622 (gnus-open-server nntp-open-server)
623 (gnus-close-server nntp-close-server)
624 (gnus-server-opened nntp-server-opened)
625 (gnus-status-message nntp-status-message)
626 (gnus-request-article nntp-request-article)
627 (gnus-request-group nntp-request-group)
628 (gnus-request-list nntp-request-list)
629 (gnus-request-list-newsgroups nntp-request-list-newsgroups)
630 (gnus-request-list-distributions nntp-request-list-distributions)
631 (gnus-request-post nntp-request-post))
632 (nnspool
633 (gnus-retrieve-headers nnspool-retrieve-headers)
634 (gnus-open-server nnspool-open-server)
635 (gnus-close-server nnspool-close-server)
636 (gnus-server-opened nnspool-server-opened)
637 (gnus-status-message nnspool-status-message)
638 (gnus-request-article nnspool-request-article)
639 (gnus-request-group nnspool-request-group)
640 (gnus-request-list nnspool-request-list)
641 (gnus-request-list-newsgroups nnspool-request-list-newsgroups)
642 (gnus-request-list-distributions nnspool-request-list-distributions)
643 (gnus-request-post nnspool-request-post))
644 (mhspool
645 (gnus-retrieve-headers mhspool-retrieve-headers)
646 (gnus-open-server mhspool-open-server)
647 (gnus-close-server mhspool-close-server)
648 (gnus-server-opened mhspool-server-opened)
649 (gnus-status-message mhspool-status-message)
650 (gnus-request-article mhspool-request-article)
651 (gnus-request-group mhspool-request-group)
652 (gnus-request-list mhspool-request-list)
653 (gnus-request-list-newsgroups mhspool-request-list-newsgroups)
654 (gnus-request-list-distributions mhspool-request-list-distributions)
655 (gnus-request-post mhspool-request-post)))
656 "Access method for NNTP, nnspool, and mhspool.")
658 (defvar gnus-group-buffer "*Newsgroup*")
659 (defvar gnus-summary-buffer "*Summary*")
660 (defvar gnus-article-buffer "*Article*")
661 (defvar gnus-digest-buffer "GNUS Digest")
662 (defvar gnus-digest-summary-buffer "GNUS Digest-summary")
664 (defvar gnus-buffer-list
665 (list gnus-group-buffer gnus-summary-buffer gnus-article-buffer
666 gnus-digest-buffer gnus-digest-summary-buffer)
667 "GNUS buffer names which should be killed when exiting.")
669 (defvar gnus-variable-list
670 '(gnus-newsrc-options
671 gnus-newsrc-options-n-yes gnus-newsrc-options-n-no
672 gnus-newsrc-assoc gnus-killed-assoc gnus-marked-assoc)
673 "GNUS variables saved in the quick startup file.")
675 (defvar gnus-overload-functions
676 '((news-inews gnus-inews-news "rnewspost")
677 (caesar-region gnus-caesar-region "rnews"))
678 "Functions overloaded by gnus.
679 It is a list of `(original overload &optional file)'.")
681 (defvar gnus-distribution-list nil)
683 (defvar gnus-newsrc-options nil
684 "Options line in the .newsrc file.")
686 (defvar gnus-newsrc-options-n-yes nil
687 "Regexp representing subscribed newsgroups.")
689 (defvar gnus-newsrc-options-n-no nil
690 "Regexp representing unsubscribed newsgroups.")
692 (defvar gnus-newsrc-assoc nil
693 "Assoc list of read articles.
694 gnus-newsrc-hashtb should be kept so that both hold the same information.")
696 (defvar gnus-newsrc-hashtb nil
697 "Hashtable of gnus-newsrc-assoc.")
699 (defvar gnus-killed-assoc nil
700 "Assoc list of newsgroups removed from gnus-newsrc-assoc.
701 gnus-killed-hashtb should be kept so that both hold the same information.")
703 (defvar gnus-killed-hashtb nil
704 "Hashtable of gnus-killed-assoc.")
706 (defvar gnus-marked-assoc nil
707 "Assoc list of articles marked as unread.
708 gnus-marked-hashtb should be kept so that both hold the same information.")
710 (defvar gnus-marked-hashtb nil
711 "Hashtable of gnus-marked-assoc.")
713 (defvar gnus-unread-hashtb nil
714 "Hashtable of unread articles.")
716 (defvar gnus-active-hashtb nil
717 "Hashtable of active articles.")
719 (defvar gnus-octive-hashtb nil
720 "Hashtable of OLD active articles.")
722 (defvar gnus-current-startup-file nil
723 "Startup file for the current host.")
725 (defvar gnus-last-search-regexp nil
726 "Default regexp for article search command.")
728 (defvar gnus-last-shell-command nil
729 "Default shell command on article.")
731 (defvar gnus-have-all-newsgroups nil)
733 (defvar gnus-newsgroup-name nil)
734 (defvar gnus-newsgroup-begin nil)
735 (defvar gnus-newsgroup-end nil)
736 (defvar gnus-newsgroup-last-rmail nil)
737 (defvar gnus-newsgroup-last-mail nil)
738 (defvar gnus-newsgroup-last-folder nil)
739 (defvar gnus-newsgroup-last-file nil)
741 (defvar gnus-newsgroup-unreads nil
742 "List of unread articles in the current newsgroup.")
744 (defvar gnus-newsgroup-unselected nil
745 "List of unselected unread articles in the current newsgroup.")
747 (defvar gnus-newsgroup-marked nil
748 "List of marked articles in the current newsgroup (a subset of unread art).")
750 (defvar gnus-newsgroup-headers nil
751 "List of article headers in the current newsgroup.
752 If the variable is modified (added or deleted), the function
753 gnus-clear-hashtables-for-newsgroup-headers must be called to clear
754 the hash tables.")
755 (defvar gnus-newsgroup-headers-hashtb-by-id nil)
756 (defvar gnus-newsgroup-headers-hashtb-by-number nil)
758 (defvar gnus-current-article nil)
759 (defvar gnus-current-headers nil)
760 (defvar gnus-current-history nil)
761 (defvar gnus-have-all-headers nil "Must be either T or NIL.")
762 (defvar gnus-last-article nil)
763 (defvar gnus-current-kill-article nil)
765 ;; Save window configuration.
766 (defvar gnus-winconf-kill-file nil)
768 (defvar gnus-group-mode-map nil)
769 (defvar gnus-summary-mode-map nil)
770 (defvar gnus-article-mode-map nil)
771 (defvar gnus-kill-file-mode-map nil)
773 (defvar rmail-last-file (expand-file-name "~/XMBOX"))
774 (defvar rmail-last-rmail-file (expand-file-name "~/XNEWS"))
776 ;; Define GNUS Subsystems.
777 (autoload 'gnus-group-post-news "gnuspost"
778 "Post an article." t)
779 (autoload 'gnus-summary-post-news "gnuspost"
780 "Post an article." t)
781 (autoload 'gnus-summary-followup "gnuspost"
782 "Post a reply article." t)
783 (autoload 'gnus-summary-followup-with-original "gnuspost"
784 "Post a reply article with original article." t)
785 (autoload 'gnus-summary-cancel-article "gnuspost"
786 "Cancel an article you posted." t)
788 (autoload 'gnus-summary-reply "gnusmail"
789 "Reply mail to news author." t)
790 (autoload 'gnus-summary-reply-with-original "gnusmail"
791 "Reply mail to news author with original article." t)
792 (autoload 'gnus-summary-mail-forward "gnusmail"
793 "Forward the current message to another user." t)
794 (autoload 'gnus-summary-mail-other-window "gnusmail"
795 "Compose mail in other window." t)
797 (autoload 'gnus-group-kill-group "gnusmisc"
798 "Kill newsgroup on current line." t)
799 (autoload 'gnus-group-yank-group "gnusmisc"
800 "Yank the last killed newsgroup on current line." t)
801 (autoload 'gnus-group-kill-region "gnusmisc"
802 "Kill newsgroups in current region." t)
803 (autoload 'gnus-group-transpose-groups "gnusmisc"
804 "Exchange current newsgroup and previous newsgroup." t)
805 (autoload 'gnus-list-killed-groups "gnusmisc"
806 "List the killed newsgroups." t)
807 (autoload 'gnus-gmt-to-local "gnusmisc"
808 "Rewrite Date field in GMT to local in current buffer.")
810 (autoload 'metamail-buffer "metamail"
811 "Process current buffer through 'metamail'." t)
813 (autoload 'timezone-make-sortable-date "timezone")
814 (autoload 'timezone-parse-date "timezone")
816 (autoload 'rmail-output "rmailout"
817 "Append this message to Unix mail file named FILE-NAME." t)
818 (autoload 'mail-position-on-field "sendmail")
819 (autoload 'mh-find-path "mh-e")
820 (autoload 'mh-prompt-for-folder "mh-e")
822 (put 'gnus-group-mode 'mode-class 'special)
823 (put 'gnus-summary-mode 'mode-class 'special)
824 (put 'gnus-article-mode 'mode-class 'special)
827 ;;(put 'gnus-eval-in-buffer-window 'lisp-indent-hook 1)
829 (defmacro gnus-eval-in-buffer-window (buffer &rest forms)
830 "Pop to BUFFER, evaluate FORMS, and then returns to original window."
831 (` (let ((GNUSStartBufferWindow (selected-window)))
832 (unwind-protect
833 (progn
834 (pop-to-buffer (, buffer))
835 (,@ forms))
836 (select-window GNUSStartBufferWindow)))))
838 (defmacro gnus-make-hashtable (&optional hashsize)
839 "Make a hash table (default and minimum size is 200).
840 Optional argument HASHSIZE specifies the table size."
841 (` (make-vector (, (if hashsize (` (max (, hashsize) 200)) 200)) 0)))
843 (defmacro gnus-gethash (string hashtable)
844 "Get hash value of STRING in HASHTABLE."
845 ;;(` (symbol-value (abbrev-symbol (, string) (, hashtable))))
846 ;;(` (abbrev-expansion (, string) (, hashtable)))
847 (` (symbol-value (intern-soft (, string) (, hashtable)))))
849 (defmacro gnus-sethash (string value hashtable)
850 "Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
851 ;; We cannot use define-abbrev since it only accepts string as value.
852 (` (set (intern (, string) (, hashtable)) (, value))))
854 ;; Note: Macros defined here are also defined in nntp.el. I don't like
855 ;; to put them here, but many users got troubled with the old
856 ;; definitions in nntp.elc. These codes are NNTP 3.10 version.
858 (defmacro nntp-header-number (header)
859 "Return article number in HEADER."
860 (` (aref (, header) 0)))
862 (defmacro nntp-set-header-number (header number)
863 "Set article number of HEADER to NUMBER."
864 (` (aset (, header) 0 (, number))))
866 (defmacro nntp-header-subject (header)
867 "Return subject string in HEADER."
868 (` (aref (, header) 1)))
870 (defmacro nntp-set-header-subject (header subject)
871 "Set article subject of HEADER to SUBJECT."
872 (` (aset (, header) 1 (, subject))))
874 (defmacro nntp-header-from (header)
875 "Return author string in HEADER."
876 (` (aref (, header) 2)))
878 (defmacro nntp-set-header-from (header from)
879 "Set article author of HEADER to FROM."
880 (` (aset (, header) 2 (, from))))
882 (defmacro nntp-header-xref (header)
883 "Return xref string in HEADER."
884 (` (aref (, header) 3)))
886 (defmacro nntp-set-header-xref (header xref)
887 "Set article xref of HEADER to xref."
888 (` (aset (, header) 3 (, xref))))
890 (defmacro nntp-header-lines (header)
891 "Return lines in HEADER."
892 (` (aref (, header) 4)))
894 (defmacro nntp-set-header-lines (header lines)
895 "Set article lines of HEADER to LINES."
896 (` (aset (, header) 4 (, lines))))
898 (defmacro nntp-header-date (header)
899 "Return date in HEADER."
900 (` (aref (, header) 5)))
902 (defmacro nntp-set-header-date (header date)
903 "Set article date of HEADER to DATE."
904 (` (aset (, header) 5 (, date))))
906 (defmacro nntp-header-id (header)
907 "Return Id in HEADER."
908 (` (aref (, header) 6)))
910 (defmacro nntp-set-header-id (header id)
911 "Set article Id of HEADER to ID."
912 (` (aset (, header) 6 (, id))))
914 (defmacro nntp-header-references (header)
915 "Return references in HEADER."
916 (` (aref (, header) 7)))
918 (defmacro nntp-set-header-references (header ref)
919 "Set article references of HEADER to REF."
920 (` (aset (, header) 7 (, ref))))
924 ;;; GNUS Group Mode
927 (if gnus-group-mode-map
929 (setq gnus-group-mode-map (make-keymap))
930 (suppress-keymap gnus-group-mode-map)
931 (define-key gnus-group-mode-map " " 'gnus-group-read-group)
932 (define-key gnus-group-mode-map "=" 'gnus-group-select-group)
933 (define-key gnus-group-mode-map "j" 'gnus-group-jump-to-group)
934 (define-key gnus-group-mode-map "n" 'gnus-group-next-unread-group)
935 (define-key gnus-group-mode-map "p" 'gnus-group-prev-unread-group)
936 (define-key gnus-group-mode-map "\177" 'gnus-group-prev-unread-group)
937 (define-key gnus-group-mode-map "N" 'gnus-group-next-group)
938 (define-key gnus-group-mode-map "P" 'gnus-group-prev-group)
939 (define-key gnus-group-mode-map "\C-n" 'gnus-group-next-group)
940 (define-key gnus-group-mode-map "\C-p" 'gnus-group-prev-group)
941 (define-key gnus-group-mode-map "\r" 'next-line)
942 ;;(define-key gnus-group-mode-map "/" 'isearch-forward)
943 (define-key gnus-group-mode-map "<" 'beginning-of-buffer)
944 (define-key gnus-group-mode-map ">" 'end-of-buffer)
945 (define-key gnus-group-mode-map "u" 'gnus-group-unsubscribe-current-group)
946 (define-key gnus-group-mode-map "U" 'gnus-group-unsubscribe-group)
947 (define-key gnus-group-mode-map "c" 'gnus-group-catchup)
948 (define-key gnus-group-mode-map "C" 'gnus-group-catchup-all)
949 (define-key gnus-group-mode-map "l" 'gnus-group-list-groups)
950 (define-key gnus-group-mode-map "L" 'gnus-group-list-all-groups)
951 (define-key gnus-group-mode-map "g" 'gnus-group-get-new-news)
952 (define-key gnus-group-mode-map "R" 'gnus-group-restart)
953 (define-key gnus-group-mode-map "b" 'gnus-group-check-bogus-groups)
954 (define-key gnus-group-mode-map "r" 'gnus-group-restrict-groups)
955 (define-key gnus-group-mode-map "a" 'gnus-group-post-news)
956 (define-key gnus-group-mode-map "\ek" 'gnus-group-edit-local-kill)
957 (define-key gnus-group-mode-map "\eK" 'gnus-group-edit-global-kill)
958 (define-key gnus-group-mode-map "\C-k" 'gnus-group-kill-group)
959 (define-key gnus-group-mode-map "\C-y" 'gnus-group-yank-group)
960 (define-key gnus-group-mode-map "\C-w" 'gnus-group-kill-region)
961 (define-key gnus-group-mode-map "\C-x\C-t" 'gnus-group-transpose-groups)
962 (define-key gnus-group-mode-map "\C-c\C-l" 'gnus-list-killed-groups)
963 (define-key gnus-group-mode-map "V" 'gnus-version)
964 ;;(define-key gnus-group-mode-map "x" 'gnus-group-force-update)
965 (define-key gnus-group-mode-map "s" 'gnus-group-force-update)
966 (define-key gnus-group-mode-map "z" 'gnus-group-suspend)
967 (define-key gnus-group-mode-map "q" 'gnus-group-exit)
968 (define-key gnus-group-mode-map "Q" 'gnus-group-quit)
969 (define-key gnus-group-mode-map "?" 'gnus-group-describe-briefly)
970 (define-key gnus-group-mode-map "\C-c\C-i" 'gnus-info-find-node))
972 (defun gnus-group-mode ()
973 "Major mode for reading network news.
974 All normal editing commands are turned off.
975 Instead, these commands are available:
977 SPC Read articles in this newsgroup.
978 = Select this newsgroup.
979 j Move to the specified newsgroup.
980 n Move to the next unread newsgroup.
981 p Move to the previous unread newsgroup.
982 C-n Move to the next newsgroup.
983 C-p Move to the previous newsgroup.
984 < Move point to the beginning of this buffer.
985 > Move point to the end of this buffer.
986 u Unsubscribe from (subscribe to) this newsgroup.
987 U Unsubscribe from (subscribe to) the specified newsgroup.
988 c Mark all articles as read, preserving marked articles.
989 C Mark all articles in this newsgroup as read.
990 l Revert this buffer.
991 L List all newsgroups.
992 g Get new news.
993 R Force to read the raw .newsrc file and get new news.
994 b Check bogus newsgroups.
995 r Restrict visible newsgroups to the current region.
996 a Post a new article.
997 ESC k Edit a local KILL file applied to this newsgroup.
998 ESC K Edit a global KILL file applied to all newsgroups.
999 C-k Kill this newsgroup.
1000 C-y Yank killed newsgroup here.
1001 C-w Kill newsgroups in current region (excluding current point).
1002 C-x C-t Exchange this newsgroup and previous newsgroup.
1003 C-c C-l list killed newsgroups.
1004 s Save .newsrc file.
1005 z Suspend reading news.
1006 q Quit reading news.
1007 Q Quit reading news without saving .newsrc file.
1008 V Show the version number of this GNUS.
1009 ? Describe Group Mode commands briefly.
1010 C-h m Describe Group Mode.
1011 C-c C-i Read Info about Group Mode.
1013 The name of the host running NNTP server is asked for if no default
1014 host is specified. It is also possible to choose another NNTP server
1015 even when the default server is defined by giving a prefix argument to
1016 the command `\\[gnus]'.
1018 If an NNTP server is preceded by a colon such as `:Mail', the user's
1019 private directory `~/Mail' is used as a news spool. This makes it
1020 possible to read mail stored in MH folders or articles saved by GNUS.
1021 File names of mail or articles must consist of only numeric
1022 characters. Otherwise, they are ignored.
1024 If there is a file named `~/.newsrc-SERVER', it is used as the
1025 startup file instead of standard one when talking to SERVER. It is
1026 possible to talk to many hosts by using different startup files for
1027 each.
1029 Option `-n' of the options line in the startup file is recognized
1030 properly the same as the Bnews system. For example, if the options
1031 line is `options -n !talk talk.rumors', newsgroups under the `talk'
1032 hierarchy except for `talk.rumors' are ignored while checking new
1033 newsgroups.
1035 If there is a file named `~/.signature-DISTRIBUTION', it is used as
1036 signature file instead of standard one when posting a news in
1037 DISTRIBUTION.
1039 If an Info file generated from `gnus.texinfo' is installed, you can
1040 read an appropriate Info node of the Info file according to the
1041 current major mode of GNUS by \\[gnus-info-find-node].
1043 The variable `gnus-version', `nntp-version', `nnspool-version', and
1044 `mhspool-version' have the version numbers of this version of gnus.el,
1045 nntp.el, nnspool.el, and mhspoo.el, respectively.
1047 User customizable variables:
1048 gnus-nntp-server
1049 Specifies the name of the host running the NNTP server. If its
1050 value is a string such as `:DIRECTORY', the user's private
1051 DIRECTORY is used as a news spool. The variable is initialized
1052 from the NNTPSERVER environment variable.
1054 gnus-nntp-service
1055 Specifies a NNTP service name. It is usually \"nntp\" or 119.
1056 Nil forces GNUS to use a local news spool if the variable
1057 `gnus-nntp-server' is set to the local host name.
1059 gnus-startup-file
1060 Specifies a startup file (.newsrc). If there is a file named
1061 `.newsrc-SERVER', it's used instead when talking to SERVER. I
1062 recommend you to use the server specific file, if you'd like to
1063 talk to many servers. Especially if you'd like to read your
1064 private directory, the name of the file must be
1065 `.newsrc-:DIRECTORY'.
1067 gnus-signature-file
1068 Specifies a signature file (.signature). If there is a file named
1069 `.signature-DISTRIBUTION', it's used instead when posting an
1070 article in DISTRIBUTION. Set the variable to nil to prevent
1071 appending the file automatically. If you use an NNTP inews which
1072 comes with the NNTP package, you may have to set the variable to
1073 nil.
1075 gnus-use-cross-reference
1076 Specifies what to do with cross references (Xref: field). If it
1077 is nil, cross references are ignored. If it is t, articles in
1078 subscribed newsgroups are only marked as read. Otherwise, if it
1079 is not nil nor t, articles in all newsgroups are marked as read.
1081 gnus-use-followup-to
1082 Specifies what to do with followup-to: field. If it is nil, its
1083 value is ignored. If it is non-nil, its value is used as followup
1084 newsgroups. Especially, if it is t and field value is `poster',
1085 your confirmation is required.
1087 gnus-author-copy
1088 Specifies a file name to save a copy of article you posted using
1089 FCC: field. If the first character of the value is `|', the
1090 contents of the article is piped out to a program specified by the
1091 rest of the value. The variable is initialized from the
1092 AUTHORCOPY environment variable.
1094 gnus-author-copy-saver
1095 Specifies a function to save an author copy. The function is
1096 called with a file name. The default function `rmail-output'
1097 saves in Unix mail format.
1099 gnus-kill-file-name
1100 Use specified file name as a KILL file (default to `KILL').
1102 gnus-novice-user
1103 Non-nil means that you are a novice to USENET. If non-nil,
1104 verbose messages may be displayed or your confirmations may be
1105 required.
1107 gnus-interactive-post
1108 Non-nil means that newsgroup, subject and distribution are asked
1109 for interactively when posting a new article.
1111 gnus-use-full-window
1112 Non-nil means to take up the entire screen of Emacs.
1114 gnus-window-configuration
1115 Specifies the configuration of Group, Summary, and Article
1116 windows. It is a list of (ACTION (G S A)), where G, S, and A are
1117 the relative height of Group, Summary, and Article windows,
1118 respectively. ACTION is `summary', `newsgroups', or `article'.
1120 gnus-subscribe-newsgroup-method
1121 Specifies a function called with a newsgroup name when new
1122 newsgroup is found. The default definition adds new newsgroup at
1123 the beginning of other newsgroups.
1125 And more and more. Please refer to texinfo documentation.
1127 Various hooks for customization:
1128 gnus-group-mode-hook
1129 Entry to this mode calls the value with no arguments, if that
1130 value is non-nil. This hook is called before GNUS is connected to
1131 the NNTP server. So, you can change or define the NNTP server in
1132 this hook.
1134 gnus-startup-hook
1135 Called with no arguments after the NNTP server is selected. It is
1136 possible to change the behavior of GNUS or initialize the
1137 variables according to the selected NNTP server.
1139 gnus-group-prepare-hook
1140 Called with no arguments after a newsgroup list is created in the
1141 Newsgroup buffer, if that value is non-nil.
1143 gnus-save-newsrc-hook
1144 Called with no arguments when saving newsrc file if that value is
1145 non-nil.
1147 gnus-prepare-article-hook
1148 Called with no arguments after preparing message body, but before
1149 preparing header fields which is automatically generated if that
1150 value is non-nil. The default hook (gnus-inews-insert-signature)
1151 inserts a signature file.
1153 gnus-inews-article-hook
1154 Called with no arguments when posting an article if that value is
1155 non-nil. This hook is called just before posting an article. The
1156 default hook does FCC (save an article to the specified file).
1158 gnus-suspend-gnus-hook
1159 Called with no arguments when suspending (not exiting) GNUS, if
1160 that value is non-nil.
1162 gnus-exit-gnus-hook
1163 Called with no arguments when exiting (not suspending) GNUS, if
1164 that value is non-nil."
1165 (interactive)
1166 (kill-all-local-variables)
1167 ;; Gee. Why don't you upgrade?
1168 (cond ((boundp 'mode-line-modified)
1169 (setq mode-line-modified "--- "))
1170 ((listp (default-value 'mode-line-format))
1171 (setq mode-line-format
1172 (cons "--- " (cdr (default-value 'mode-line-format)))))
1174 (setq mode-line-format
1175 "--- GNUS: List of Newsgroups %[(%m)%]----%3p-%-")))
1176 (setq major-mode 'gnus-group-mode)
1177 (setq mode-name "Newsgroup")
1178 (setq mode-line-buffer-identification "GNUS: List of Newsgroups")
1179 (setq mode-line-process nil)
1180 (use-local-map gnus-group-mode-map)
1181 (buffer-flush-undo (current-buffer))
1182 (setq buffer-read-only t) ;Disable modification
1183 (run-hooks 'gnus-group-mode-hook))
1185 ;;;###autoload
1186 (defun gnus (&optional confirm)
1187 "Read network news.
1188 If optional argument CONFIRM is non-nil, ask NNTP server."
1189 (interactive "P")
1190 (unwind-protect
1191 (progn
1192 (switch-to-buffer (get-buffer-create gnus-group-buffer))
1193 (gnus-group-mode)
1194 (gnus-start-news-server confirm))
1195 (if (not (gnus-server-opened))
1196 (gnus-group-quit)
1197 ;; NNTP server is successfully open.
1198 (setq mode-line-process (format " {%s}" gnus-nntp-server))
1199 (let ((buffer-read-only nil))
1200 (erase-buffer)
1201 (gnus-group-startup-message)
1202 (sit-for 0))
1203 (run-hooks 'gnus-startup-hook)
1204 (gnus-setup-news)
1205 (if gnus-novice-user
1206 (gnus-group-describe-briefly)) ;Show brief help message.
1207 (gnus-group-list-groups nil)
1210 (defun gnus-group-startup-message ()
1211 "Insert startup message in current buffer."
1212 ;; Insert the message.
1213 (insert
1214 (format "
1217 NNTP-based News Reader for GNU Emacs
1220 If you have any trouble with this software, please let me
1221 know. I will fix your problems in the next release.
1223 Comments, suggestions, and bug fixes are welcome.
1225 Masanobu UMEDA
1226 umerin@mse.kyutech.ac.jp" gnus-version))
1227 ;; And then hack it.
1228 ;; 57 is the longest line.
1229 (indent-rigidly (point-min) (point-max) (/ (max (- (window-width) 57) 0) 2))
1230 (goto-char (point-min))
1231 ;; +4 is fuzzy factor.
1232 (insert-char ?\n (/ (max (- (window-height) 18) 0) 2)))
1234 (defun gnus-group-list-groups (show-all)
1235 "List newsgroups in the Newsgroup buffer.
1236 If argument SHOW-ALL is non-nil, unsubscribed groups are also listed."
1237 (interactive "P")
1238 (let ((case-fold-search nil)
1239 (last-group ;Current newsgroup.
1240 (gnus-group-group-name))
1241 (next-group ;Next possible newsgroup.
1242 (progn
1243 (gnus-group-search-forward nil nil)
1244 (gnus-group-group-name)))
1245 (prev-group ;Previous possible newsgroup.
1246 (progn
1247 (gnus-group-search-forward t nil)
1248 (gnus-group-group-name))))
1249 (set-buffer gnus-group-buffer) ;May call from out of Group buffer
1250 (gnus-group-prepare show-all)
1251 (if (zerop (buffer-size))
1252 (message "No news is good news")
1253 ;; Go to last newsgroup if possible. If cannot, try next and
1254 ;; previous. If all fail, go to first unread newsgroup.
1255 (goto-char (point-min))
1256 (or (and last-group
1257 (re-search-forward (gnus-group-make-regexp last-group) nil t))
1258 (and next-group
1259 (re-search-forward (gnus-group-make-regexp next-group) nil t))
1260 (and prev-group
1261 (re-search-forward (gnus-group-make-regexp prev-group) nil t))
1262 (gnus-group-search-forward nil nil t))
1263 ;; Adjust cursor point.
1264 (beginning-of-line)
1265 (search-forward ":" nil t)
1268 (defun gnus-group-prepare (&optional all)
1269 "Prepare list of newsgroups in current buffer.
1270 If optional argument ALL is non-nil, unsubscribed groups are also listed."
1271 (let ((buffer-read-only nil)
1272 (newsrc gnus-newsrc-assoc)
1273 (group-info nil)
1274 (group-name nil)
1275 (unread-count 0)
1276 ;; This specifies the format of Group buffer.
1277 (cntl "%s%s%5d: %s\n"))
1278 (erase-buffer)
1279 ;; List newsgroups.
1280 (while newsrc
1281 (setq group-info (car newsrc))
1282 (setq group-name (car group-info))
1283 (setq unread-count (nth 1 (gnus-gethash group-name gnus-unread-hashtb)))
1284 (if (or all
1285 (and (nth 1 group-info) ;Subscribed.
1286 (> unread-count 0))) ;There are unread articles.
1287 ;; Yes, I can use gnus-group-prepare-line, but this is faster.
1288 (insert
1289 (format cntl
1290 ;; Subscribed or not.
1291 (if (nth 1 group-info) " " "U")
1292 ;; Has new news?
1293 (if (and (> unread-count 0)
1294 (>= 0
1295 (- unread-count
1296 (length
1297 (cdr (gnus-gethash group-name
1298 gnus-marked-hashtb))))))
1299 "*" " ")
1300 ;; Number of unread articles.
1301 unread-count
1302 ;; Newsgroup name.
1303 group-name))
1305 (setq newsrc (cdr newsrc))
1307 (setq gnus-have-all-newsgroups all)
1308 (goto-char (point-min))
1309 (run-hooks 'gnus-group-prepare-hook)
1312 (defun gnus-group-prepare-line (info)
1313 "Return a string for the Newsgroup buffer from INFO.
1314 INFO is an element of gnus-newsrc-assoc or gnus-killed-assoc."
1315 (let* ((group-name (car info))
1316 (unread-count
1317 (or (nth 1 (gnus-gethash group-name gnus-unread-hashtb))
1318 ;; Not in hash table, so compute it now.
1319 (gnus-number-of-articles
1320 (gnus-difference-of-range
1321 (nth 2 (gnus-gethash group-name gnus-active-hashtb))
1322 (nthcdr 2 info)))))
1323 ;; This specifies the format of Group buffer.
1324 (cntl "%s%s%5d: %s\n"))
1325 (format cntl
1326 ;; Subscribed or not.
1327 (if (nth 1 info) " " "U")
1328 ;; Has new news?
1329 (if (and (> unread-count 0)
1330 (>= 0
1331 (- unread-count
1332 (length
1333 (cdr (gnus-gethash group-name
1334 gnus-marked-hashtb))))))
1335 "*" " ")
1336 ;; Number of unread articles.
1337 unread-count
1338 ;; Newsgroup name.
1339 group-name
1342 (defun gnus-group-update-group (group &optional visible-only)
1343 "Update newsgroup info of GROUP.
1344 If optional argument VISIBLE-ONLY is non-nil, non displayed group is ignored."
1345 (let ((buffer-read-only nil)
1346 (case-fold-search nil) ;appleIIgs vs. appleiigs
1347 (regexp (gnus-group-make-regexp group))
1348 (visible nil))
1349 ;; Buffer may be narrowed.
1350 (save-restriction
1351 (widen)
1352 ;; Search a line to modify. If the buffer is large, the search
1353 ;; takes long time. In most cases, current point is on the line
1354 ;; we are looking for. So, first of all, check current line.
1355 ;; And then if current point is in the first half, search from
1356 ;; the beginning. Otherwise, search from the end.
1357 (if (cond ((progn
1358 (beginning-of-line)
1359 (looking-at regexp)))
1360 ((and (> (/ (buffer-size) 2) (point)) ;In the first half.
1361 (progn
1362 (goto-char (point-min))
1363 (re-search-forward regexp nil t))))
1364 ((progn
1365 (goto-char (point-max))
1366 (re-search-backward regexp nil t))))
1367 ;; GROUP is listed in current buffer. So, delete old line.
1368 (progn
1369 (setq visible t)
1370 (beginning-of-line)
1371 (delete-region (point) (progn (forward-line 1) (point)))
1373 ;; No such line in the buffer, so insert it at the top.
1374 (goto-char (point-min)))
1375 (if (or visible (not visible-only))
1376 (progn
1377 (insert (gnus-group-prepare-line
1378 (gnus-gethash group gnus-newsrc-hashtb)))
1379 (forward-line -1) ;Move point on that line.
1383 (defun gnus-group-group-name ()
1384 "Get newsgroup name around point."
1385 (save-excursion
1386 (beginning-of-line)
1387 (if (looking-at "^.+:[ \t]+\\([^ \t\n]+\\)\\([ \t].*\\|$\\)")
1388 (buffer-substring (match-beginning 1) (match-end 1))
1391 (defun gnus-group-make-regexp (newsgroup)
1392 "Return regexp that matches for a line of NEWSGROUP."
1393 (concat "^.+: " (regexp-quote newsgroup) "\\([ \t].*\\|$\\)"))
1395 (defun gnus-group-search-forward (backward norest &optional heretoo)
1396 "Search for the next (or previous) newsgroup.
1397 If 1st argument BACKWARD is non-nil, search backward instead.
1398 If 2nd argument NOREST is non-nil, don't care about newsgroup property.
1399 If optional argument HERETOO is non-nil, current line is searched for, too."
1400 (let ((case-fold-search nil)
1401 (func
1402 (if backward
1403 (function re-search-backward) (function re-search-forward)))
1404 (regexp
1405 (format "^%s[ \t]*\\(%s\\):"
1406 (if norest ".." " [ \t]")
1407 (if norest "[0-9]+" "[1-9][0-9]*")))
1408 (found nil))
1409 (if backward
1410 (if heretoo
1411 (end-of-line)
1412 (beginning-of-line))
1413 (if heretoo
1414 (beginning-of-line)
1415 (end-of-line)))
1416 (setq found (funcall func regexp nil t))
1417 ;; Adjust cursor point.
1418 (beginning-of-line)
1419 (search-forward ":" nil t)
1420 ;; Return T if found.
1421 found
1424 ;; GNUS Group mode command
1426 (defun gnus-group-read-group (all &optional no-article)
1427 "Read news in this newsgroup.
1428 If argument ALL is non-nil, already read articles become readable.
1429 If optional argument NO-ARTICLE is non-nil, no article body is displayed."
1430 (interactive "P")
1431 (let ((group (gnus-group-group-name))) ;Newsgroup name to read.
1432 (if group
1433 (gnus-summary-read-group
1434 group
1435 (or all
1436 ;;(not (nth 1 (gnus-gethash group gnus-newsrc-hashtb))) ;Unsubscribed
1437 (zerop
1438 (nth 1 (gnus-gethash group gnus-unread-hashtb)))) ;No unread
1439 no-article
1443 (defun gnus-group-select-group (all)
1444 "Select this newsgroup.
1445 No article is selected automatically.
1446 If argument ALL is non-nil, already read articles become readable."
1447 (interactive "P")
1448 (gnus-group-read-group all t))
1450 (defun gnus-group-jump-to-group (group)
1451 "Jump to newsgroup GROUP."
1452 (interactive
1453 (list (completing-read "Newsgroup: " gnus-newsrc-assoc nil 'require-match)))
1454 (let ((case-fold-search nil))
1455 (goto-char (point-min))
1456 (or (re-search-forward (gnus-group-make-regexp group) nil t)
1457 (if (gnus-gethash group gnus-newsrc-hashtb)
1458 ;; Add GROUP entry, then seach again.
1459 (gnus-group-update-group group)))
1460 ;; Adjust cursor point.
1461 (beginning-of-line)
1462 (search-forward ":" nil t)
1465 (defun gnus-group-next-group (n)
1466 "Go to next N'th newsgroup."
1467 (interactive "p")
1468 (while (and (> n 1)
1469 (gnus-group-search-forward nil t))
1470 (setq n (1- n)))
1471 (or (gnus-group-search-forward nil t)
1472 (message "No more newsgroups")))
1474 (defun gnus-group-next-unread-group (n)
1475 "Go to next N'th unread newsgroup."
1476 (interactive "p")
1477 (while (and (> n 1)
1478 (gnus-group-search-forward nil nil))
1479 (setq n (1- n)))
1480 (or (gnus-group-search-forward nil nil)
1481 (message "No more unread newsgroups")))
1483 (defun gnus-group-prev-group (n)
1484 "Go to previous N'th newsgroup."
1485 (interactive "p")
1486 (while (and (> n 1)
1487 (gnus-group-search-forward t t))
1488 (setq n (1- n)))
1489 (or (gnus-group-search-forward t t)
1490 (message "No more newsgroups")))
1492 (defun gnus-group-prev-unread-group (n)
1493 "Go to previous N'th unread newsgroup."
1494 (interactive "p")
1495 (while (and (> n 1)
1496 (gnus-group-search-forward t nil))
1497 (setq n (1- n)))
1498 (or (gnus-group-search-forward t nil)
1499 (message "No more unread newsgroups")))
1501 (defun gnus-group-catchup (all)
1502 "Mark all articles not marked as unread in current newsgroup as read.
1503 If prefix argument ALL is non-nil, all articles are marked as read.
1504 Cross references (Xref: field) of articles are ignored."
1505 (interactive "P")
1506 (let* ((group (gnus-group-group-name))
1507 (marked (if (not all)
1508 (cdr (gnus-gethash group gnus-marked-hashtb)))))
1509 (and group
1510 (or (not gnus-interactive-catchup) ;Without confirmation?
1511 (y-or-n-p
1512 (if all
1513 "Do you really want to mark everything as read? "
1514 "Delete all articles not marked as read? ")))
1515 (progn
1516 (message "") ;Clear "Yes or No" question.
1517 ;; Any marked articles will be preserved.
1518 (gnus-update-unread-articles group marked marked)
1519 (gnus-group-update-group group)
1520 (gnus-group-next-group 1)))
1523 (defun gnus-group-catchup-all ()
1524 "Mark all articles in current newsgroup as read.
1525 Cross references (Xref: field) of articles are ignored."
1526 (interactive)
1527 (gnus-group-catchup t))
1529 (defun gnus-group-unsubscribe-current-group ()
1530 "Toggle subscribe from/to unsubscribe current group."
1531 (interactive)
1532 (gnus-group-unsubscribe-group (gnus-group-group-name))
1533 (gnus-group-next-group 1))
1535 (defun gnus-group-unsubscribe-group (group)
1536 "Toggle subscribe from/to unsubscribe GROUP.
1537 New newsgroup is added to .newsrc automatically."
1538 (interactive
1539 (list (completing-read "Newsgroup: "
1540 gnus-active-hashtb nil 'require-match)))
1541 (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
1542 (cond ((not (null newsrc))
1543 ;; Toggle subscription flag.
1544 (setcar (nthcdr 1 newsrc) (not (nth 1 newsrc)))
1545 (gnus-update-newsrc-buffer group)
1546 (gnus-group-update-group group)
1547 ;; Adjust cursor point.
1548 (beginning-of-line)
1549 (search-forward ":" nil t))
1550 ((and (stringp group)
1551 (gnus-gethash group gnus-active-hashtb))
1552 ;; Add new newsgroup.
1553 (gnus-add-newsgroup group)
1554 (gnus-group-update-group group)
1555 ;; Adjust cursor point.
1556 (beginning-of-line)
1557 (search-forward ":" nil t))
1558 (t (error "No such newsgroup: %s" group)))
1561 (defun gnus-group-list-all-groups ()
1562 "List all of newsgroups in the Newsgroup buffer."
1563 (interactive)
1564 (gnus-group-list-groups t))
1566 (defun gnus-group-get-new-news ()
1567 "Get newly arrived articles. In fact, read the active file again."
1568 (interactive)
1569 (gnus-setup-news)
1570 (gnus-group-list-groups gnus-have-all-newsgroups))
1572 (defun gnus-group-restart ()
1573 "Force GNUS to read the raw startup file."
1574 (interactive)
1575 (gnus-save-newsrc-file)
1576 (gnus-setup-news t) ;Force to read the raw startup file.
1577 (gnus-group-list-groups gnus-have-all-newsgroups))
1579 (defun gnus-group-check-bogus-groups ()
1580 "Check bogus newsgroups."
1581 (interactive)
1582 (gnus-check-bogus-newsgroups t) ;Require confirmation.
1583 (gnus-group-list-groups gnus-have-all-newsgroups))
1585 (defun gnus-group-restrict-groups (start end)
1586 "Restrict visible newsgroups to the current region (START and END).
1587 Type \\[widen] to remove restriction."
1588 (interactive "r")
1589 (save-excursion
1590 (narrow-to-region (progn
1591 (goto-char start)
1592 (beginning-of-line)
1593 (point))
1594 (progn
1595 (goto-char end)
1596 (forward-line 1)
1597 (point))))
1598 (message (substitute-command-keys "Type \\[widen] to remove restriction")))
1600 (defun gnus-group-edit-global-kill ()
1601 "Edit a global KILL file."
1602 (interactive)
1603 (setq gnus-current-kill-article nil) ;No articles selected.
1604 (gnus-kill-file-edit-file nil) ;Nil stands for global KILL file.
1605 (message
1606 (substitute-command-keys
1607 "Editing a global KILL file (Type \\[gnus-kill-file-exit] to exit)")))
1609 (defun gnus-group-edit-local-kill ()
1610 "Edit a local KILL file."
1611 (interactive)
1612 (setq gnus-current-kill-article nil) ;No articles selected.
1613 (gnus-kill-file-edit-file (gnus-group-group-name))
1614 (message
1615 (substitute-command-keys
1616 "Editing a local KILL file (Type \\[gnus-kill-file-exit] to exit)")))
1618 (defun gnus-group-force-update ()
1619 "Update .newsrc file."
1620 (interactive)
1621 (gnus-save-newsrc-file))
1623 (defun gnus-group-suspend ()
1624 "Suspend the current GNUS session.
1625 In fact, cleanup buffers except for Group Mode buffer.
1626 The hook gnus-suspend-gnus-hook is called before actually suspending."
1627 (interactive)
1628 (run-hooks 'gnus-suspend-gnus-hook)
1629 ;; Kill GNUS buffers except for Group Mode buffer.
1630 (let ((buffers gnus-buffer-list))
1631 (while buffers
1632 (and (not (eq (car buffers) gnus-group-buffer))
1633 (get-buffer (car buffers))
1634 (kill-buffer (car buffers)))
1635 (setq buffers (cdr buffers))
1637 (bury-buffer))
1639 (defun gnus-group-exit ()
1640 "Quit reading news after updating .newsrc.
1641 The hook gnus-exit-gnus-hook is called before actually quitting."
1642 (interactive)
1643 (if (or noninteractive ;For gnus-batch-kill
1644 (zerop (buffer-size)) ;No news is good news.
1645 (not (gnus-server-opened)) ;NNTP connection closed.
1646 (not gnus-interactive-exit) ;Without confirmation
1647 (y-or-n-p "Are you sure you want to quit reading news? "))
1648 (progn
1649 (message "") ;Erase "Yes or No" question.
1650 (run-hooks 'gnus-exit-gnus-hook)
1651 (gnus-save-newsrc-file)
1652 (gnus-clear-system)
1653 (gnus-close-server))
1656 (defun gnus-group-quit ()
1657 "Quit reading news without updating .newsrc.
1658 The hook gnus-exit-gnus-hook is called before actually quitting."
1659 (interactive)
1660 (if (or noninteractive ;For gnus-batch-kill
1661 (zerop (buffer-size))
1662 (not (gnus-server-opened))
1663 (yes-or-no-p
1664 (format "Quit reading news without saving %s? "
1665 (file-name-nondirectory gnus-current-startup-file))))
1666 (progn
1667 (message "") ;Erase "Yes or No" question.
1668 (run-hooks 'gnus-exit-gnus-hook)
1669 (gnus-clear-system)
1670 (gnus-close-server))
1673 (defun gnus-group-describe-briefly ()
1674 "Describe Group mode commands briefly."
1675 (interactive)
1676 (message
1677 (concat
1678 (substitute-command-keys "\\[gnus-group-read-group]:Select ")
1679 (substitute-command-keys "\\[gnus-group-next-unread-group]:Forward ")
1680 (substitute-command-keys "\\[gnus-group-prev-unread-group]:Backward ")
1681 (substitute-command-keys "\\[gnus-group-exit]:Exit ")
1682 (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
1683 (substitute-command-keys "\\[gnus-group-describe-briefly]:This help")
1688 ;;; GNUS Summary Mode
1691 (if gnus-summary-mode-map
1693 (setq gnus-summary-mode-map (make-keymap))
1694 (suppress-keymap gnus-summary-mode-map)
1695 (define-key gnus-summary-mode-map " " 'gnus-summary-next-page)
1696 (define-key gnus-summary-mode-map "\177" 'gnus-summary-prev-page)
1697 (define-key gnus-summary-mode-map "\r" 'gnus-summary-scroll-up)
1698 (define-key gnus-summary-mode-map "n" 'gnus-summary-next-unread-article)
1699 (define-key gnus-summary-mode-map "p" 'gnus-summary-prev-unread-article)
1700 (define-key gnus-summary-mode-map "N" 'gnus-summary-next-article)
1701 (define-key gnus-summary-mode-map "P" 'gnus-summary-prev-article)
1702 (define-key gnus-summary-mode-map "\e\C-n" 'gnus-summary-next-same-subject)
1703 (define-key gnus-summary-mode-map "\e\C-p" 'gnus-summary-prev-same-subject)
1704 ;;(define-key gnus-summary-mode-map "\e\C-n" 'gnus-summary-next-unread-same-subject)
1705 ;;(define-key gnus-summary-mode-map "\e\C-p" 'gnus-summary-prev-unread-same-subject)
1706 (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-summary-next-digest)
1707 (define-key gnus-summary-mode-map "\C-c\C-p" 'gnus-summary-prev-digest)
1708 (define-key gnus-summary-mode-map "\C-n" 'gnus-summary-next-subject)
1709 (define-key gnus-summary-mode-map "\C-p" 'gnus-summary-prev-subject)
1710 (define-key gnus-summary-mode-map "\en" 'gnus-summary-next-unread-subject)
1711 (define-key gnus-summary-mode-map "\ep" 'gnus-summary-prev-unread-subject)
1712 ;;(define-key gnus-summary-mode-map "\C-cn" 'gnus-summary-next-group)
1713 ;;(define-key gnus-summary-mode-map "\C-cp" 'gnus-summary-prev-group)
1714 (define-key gnus-summary-mode-map "." 'gnus-summary-first-unread-article)
1715 ;;(define-key gnus-summary-mode-map "/" 'isearch-forward)
1716 (define-key gnus-summary-mode-map "s" 'gnus-summary-isearch-article)
1717 (define-key gnus-summary-mode-map "\es" 'gnus-summary-search-article-forward)
1718 ;;(define-key gnus-summary-mode-map "\eS" 'gnus-summary-search-article-backward)
1719 (define-key gnus-summary-mode-map "\er" 'gnus-summary-search-article-backward)
1720 (define-key gnus-summary-mode-map "<" 'gnus-summary-beginning-of-article)
1721 (define-key gnus-summary-mode-map ">" 'gnus-summary-end-of-article)
1722 (define-key gnus-summary-mode-map "j" 'gnus-summary-goto-subject)
1723 ;;(define-key gnus-summary-mode-map "J" 'gnus-summary-goto-article)
1724 (define-key gnus-summary-mode-map "l" 'gnus-summary-goto-last-article)
1725 (define-key gnus-summary-mode-map "^" 'gnus-summary-refer-parent-article)
1726 ;;(define-key gnus-summary-mode-map "\er" 'gnus-summary-refer-article)
1727 (define-key gnus-summary-mode-map "\e^" 'gnus-summary-refer-article)
1728 (define-key gnus-summary-mode-map "u" 'gnus-summary-mark-as-unread-forward)
1729 (define-key gnus-summary-mode-map "U" 'gnus-summary-mark-as-unread-backward)
1730 (define-key gnus-summary-mode-map "d" 'gnus-summary-mark-as-read-forward)
1731 (define-key gnus-summary-mode-map "D" 'gnus-summary-mark-as-read-backward)
1732 (define-key gnus-summary-mode-map "\eu" 'gnus-summary-clear-mark-forward)
1733 (define-key gnus-summary-mode-map "\eU" 'gnus-summary-clear-mark-backward)
1734 (define-key gnus-summary-mode-map "k" 'gnus-summary-kill-same-subject-and-select)
1735 (define-key gnus-summary-mode-map "\C-k" 'gnus-summary-kill-same-subject)
1736 (define-key gnus-summary-mode-map "\e\C-t" 'gnus-summary-toggle-threads)
1737 (define-key gnus-summary-mode-map "\e\C-s" 'gnus-summary-show-thread)
1738 (define-key gnus-summary-mode-map "\e\C-h" 'gnus-summary-hide-thread)
1739 (define-key gnus-summary-mode-map "\e\C-f" 'gnus-summary-next-thread)
1740 (define-key gnus-summary-mode-map "\e\C-b" 'gnus-summary-prev-thread)
1741 (define-key gnus-summary-mode-map "\e\C-u" 'gnus-summary-up-thread)
1742 (define-key gnus-summary-mode-map "\e\C-d" 'gnus-summary-down-thread)
1743 (define-key gnus-summary-mode-map "\e\C-k" 'gnus-summary-kill-thread)
1744 (define-key gnus-summary-mode-map "&" 'gnus-summary-execute-command)
1745 ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup)
1746 ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-all)
1747 (define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-and-exit)
1748 ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-all-and-exit)
1749 (define-key gnus-summary-mode-map "\C-t" 'gnus-summary-toggle-truncation)
1750 (define-key gnus-summary-mode-map "x" 'gnus-summary-delete-marked-as-read)
1751 (define-key gnus-summary-mode-map "X" 'gnus-summary-delete-marked-with)
1752 (define-key gnus-summary-mode-map "\C-c\C-sn" 'gnus-summary-sort-by-number)
1753 (define-key gnus-summary-mode-map "\C-c\C-sa" 'gnus-summary-sort-by-author)
1754 (define-key gnus-summary-mode-map "\C-c\C-ss" 'gnus-summary-sort-by-subject)
1755 (define-key gnus-summary-mode-map "\C-c\C-sd" 'gnus-summary-sort-by-date)
1756 (define-key gnus-summary-mode-map "\C-c\C-s\C-n" 'gnus-summary-sort-by-number)
1757 (define-key gnus-summary-mode-map "\C-c\C-s\C-a" 'gnus-summary-sort-by-author)
1758 (define-key gnus-summary-mode-map "\C-c\C-s\C-s" 'gnus-summary-sort-by-subject)
1759 (define-key gnus-summary-mode-map "\C-c\C-s\C-d" 'gnus-summary-sort-by-date)
1760 (define-key gnus-summary-mode-map "=" 'gnus-summary-expand-window)
1761 ;;(define-key gnus-summary-mode-map "G" 'gnus-summary-reselect-current-group)
1762 (define-key gnus-summary-mode-map "\C-x\C-s" 'gnus-summary-reselect-current-group)
1763 (define-key gnus-summary-mode-map "w" 'gnus-summary-stop-page-breaking)
1764 (define-key gnus-summary-mode-map "\C-c\C-r" 'gnus-summary-caesar-message)
1765 (define-key gnus-summary-mode-map "g" 'gnus-summary-show-article)
1766 (define-key gnus-summary-mode-map "t" 'gnus-summary-toggle-header)
1767 ;;(define-key gnus-summary-mode-map "v" 'gnus-summary-show-all-headers)
1768 (define-key gnus-summary-mode-map "\et" 'gnus-summary-toggle-mime)
1769 (define-key gnus-summary-mode-map "\C-d" 'gnus-summary-rmail-digest)
1770 (define-key gnus-summary-mode-map "a" 'gnus-summary-post-news)
1771 (define-key gnus-summary-mode-map "f" 'gnus-summary-followup)
1772 (define-key gnus-summary-mode-map "F" 'gnus-summary-followup-with-original)
1773 (define-key gnus-summary-mode-map "C" 'gnus-summary-cancel-article)
1774 (define-key gnus-summary-mode-map "r" 'gnus-summary-reply)
1775 (define-key gnus-summary-mode-map "R" 'gnus-summary-reply-with-original)
1776 (define-key gnus-summary-mode-map "\C-c\C-f" 'gnus-summary-mail-forward)
1777 (define-key gnus-summary-mode-map "m" 'gnus-summary-mail-other-window)
1778 (define-key gnus-summary-mode-map "o" 'gnus-summary-save-article)
1779 (define-key gnus-summary-mode-map "\C-o" 'gnus-summary-save-in-mail)
1780 (define-key gnus-summary-mode-map "|" 'gnus-summary-pipe-output)
1781 (define-key gnus-summary-mode-map "\ek" 'gnus-summary-edit-local-kill)
1782 (define-key gnus-summary-mode-map "\eK" 'gnus-summary-edit-global-kill)
1783 (define-key gnus-summary-mode-map "V" 'gnus-version)
1784 (define-key gnus-summary-mode-map "q" 'gnus-summary-exit)
1785 (define-key gnus-summary-mode-map "Q" 'gnus-summary-quit)
1786 (define-key gnus-summary-mode-map "?" 'gnus-summary-describe-briefly)
1787 (define-key gnus-summary-mode-map "\C-c\C-i" 'gnus-info-find-node))
1789 (defun gnus-summary-mode ()
1790 "Major mode for reading articles in this newsgroup.
1791 All normal editing commands are turned off.
1792 Instead, these commands are available:
1794 SPC Scroll to the next page of the current article. The next unread
1795 article is selected automatically at the end of the message.
1796 DEL Scroll to the previous page of the current article.
1797 RET Scroll up (or down) one line the current article.
1798 n Move to the next unread article.
1799 p Move to the previous unread article.
1800 N Move to the next article.
1801 P Move to the previous article.
1802 ESC C-n Move to the next article which has the same subject as the
1803 current article.
1804 ESC C-p Move to the previous article which has the same subject as the
1805 current article.
1806 \\[gnus-summary-next-unread-same-subject]
1807 Move to the next unread article which has the same subject as the
1808 current article.
1809 \\[gnus-summary-prev-unread-same-subject]
1810 Move to the previous unread article which has the same subject as
1811 the current article.
1812 C-c C-n Scroll to the next digested message of the current article.
1813 C-c C-p Scroll to the previous digested message of the current article.
1814 C-n Move to the next subject.
1815 C-p Move to the previous subject.
1816 ESC n Move to the next unread subject.
1817 ESC p Move to the previous unread subject.
1818 \\[gnus-summary-next-group]
1819 Exit the current newsgroup and select the next unread newsgroup.
1820 \\[gnus-summary-prev-group]
1821 Exit the current newsgroup and select the previous unread newsgroup.
1822 . Jump to the first unread article in the current newsgroup.
1823 s Do an incremental search forward on the current article.
1824 ESC s Search for an article containing a regexp forward.
1825 ESC r Search for an article containing a regexp backward.
1826 < Move point to the beginning of the current article.
1827 > Move point to the end of the current article.
1828 j Jump to the article specified by the numeric article ID.
1829 l Jump to the article you read last.
1830 ^ Refer to parent of the current article.
1831 ESC ^ Refer to the article specified by the Message-ID.
1832 u Mark the current article as unread, and go forward.
1833 U Mark the current article as unread, and go backward.
1834 d Mark the current article as read, and go forward.
1835 D Mark the current article as read, and go backward.
1836 ESC u Clear the current article's mark, and go forward.
1837 ESC U Clear the current article's mark, and go backward.
1838 k Mark articles which has the same subject as the current article as
1839 read, and then select the next unread article.
1840 C-k Mark articles which has the same subject as the current article as
1841 read.
1842 ESC k Edit a local KILL file applied to the current newsgroup.
1843 ESC K Edit a global KILL file applied to all newsgroups.
1844 ESC C-t Toggle showing conversation threads.
1845 ESC C-s Show thread subtrees.
1846 ESC C-h Hide thread subtrees.
1847 \\[gnus-summary-show-all-threads] Show all thread subtrees.
1848 \\[gnus-summary-hide-all-threads] Hide all thread subtrees.
1849 ESC C-f Go to the same level next thread.
1850 ESC C-b Go to the same level previous thread.
1851 ESC C-d Go downward current thread.
1852 ESC C-u Go upward current thread.
1853 ESC C-k Mark articles under current thread as read.
1854 & Execute a command for each article conditionally.
1855 \\[gnus-summary-catchup]
1856 Mark all articles as read in the current newsgroup, preserving
1857 articles marked as unread.
1858 \\[gnus-summary-catchup-all]
1859 Mark all articles as read in the current newsgroup.
1860 \\[gnus-summary-catchup-and-exit]
1861 Catch up all articles not marked as unread, and then exit the
1862 current newsgroup.
1863 \\[gnus-summary-catchup-all-and-exit]
1864 Catch up all articles, and then exit the current newsgroup.
1865 C-t Toggle truncations of subject lines.
1866 x Delete subject lines marked as read.
1867 X Delete subject lines with the specific marks.
1868 C-c C-s C-n Sort subjects by article number.
1869 C-c C-s C-a Sort subjects by article author.
1870 C-c C-s C-s Sort subjects alphabetically.
1871 C-c C-s C-d Sort subjects by date.
1872 = Expand Summary window to show headers full window.
1873 C-x C-s Reselect the current newsgroup. Prefix argument means to select all.
1874 w Stop page breaking by linefeed.
1875 C-c C-r Caesar rotates letters by 13/47 places.
1876 g Force to show the current article.
1877 t Show original article header if pruned header currently shown, or
1878 vice versa.
1879 ESC-t Toggle MIME processing.
1880 C-d Run RMAIL on the current digest article.
1881 a Post a new article.
1882 f Post a reply article.
1883 F Post a reply article with original article.
1884 C Cancel the current article.
1885 r Mail a message to the author.
1886 R Mail a message to the author with original author.
1887 C-c C-f Forward the current message to another user.
1888 m Mail a message in other window.
1889 o Save the current article in your favorite format.
1890 C-o Append the current article to a file in Unix mail format.
1891 | Pipe the contents of the current article to a subprocess.
1892 q Quit reading news in the current newsgroup.
1893 Q Quit reading news without recording unread articles information.
1894 V Show the version number of this GNUS.
1895 ? Describe Summary mode commands briefly.
1896 C-h m Describe Summary mode.
1897 C-c C-i Read Info about Summary mode.
1899 User customizable variables:
1900 gnus-large-newsgroup
1901 The number of articles which indicates a large newsgroup. If the
1902 number of articles in a newsgroup is greater than the value, the
1903 number of articles to be selected is asked for. If the given value
1904 N is positive, the last N articles is selected. If N is negative,
1905 the first N articles are selected. An empty string means to select
1906 all articles.
1908 gnus-use-long-file-name
1909 Non-nil means that a newsgroup name is used as a default file name
1910 to save articles to. If it's nil, the directory form of a
1911 newsgroup is used instead.
1913 gnus-default-article-saver
1914 Specifies your favorite article saver which is interactively
1915 funcallable. Following functions are available:
1917 gnus-summary-save-in-rmail (in Rmail format)
1918 gnus-summary-save-in-mail (in Unix mail format)
1919 gnus-summary-save-in-folder (in MH folder)
1920 gnus-summary-save-in-file (in article format).
1922 gnus-rmail-save-name
1923 gnus-mail-save-name
1924 gnus-folder-save-name
1925 gnus-file-save-name
1926 Specifies a function generating a file name to save articles in
1927 specified format. The function is called with NEWSGROUP, HEADERS,
1928 and optional LAST-FILE. Access macros to the headers are defined
1929 as nntp-header-FIELD, and functions are defined as
1930 gnus-header-FIELD.
1932 gnus-article-save-directory
1933 Specifies a directory name to save articles to using the commands
1934 gnus-summary-save-in-rmail, gnus-summary-save-in-mail and
1935 gnus-summary-save-in-file. The variable is initialized from the
1936 SAVEDIR environment variable.
1938 gnus-show-all-headers
1939 Non-nil means that all headers of an article are shown.
1941 gnus-save-all-headers
1942 Non-nil means that all headers of an article are saved in a file.
1944 gnus-show-mime
1945 Non-nil means that show a MIME message.
1947 gnus-show-threads
1948 Non-nil means that conversation threads are shown in tree structure.
1950 gnus-thread-hide-subject
1951 Non-nil means that subjects for thread subtrees are hidden.
1953 gnus-thread-hide-subtree
1954 Non-nil means that thread subtrees are hidden initially.
1956 gnus-thread-hide-killed
1957 Non-nil means that killed thread subtrees are hidden automatically.
1959 gnus-thread-ignore-subject
1960 Non-nil means that subject differences are ignored in constructing
1961 thread trees.
1963 gnus-thread-indent-level
1964 Indentation of thread subtrees.
1966 gnus-optional-headers
1967 Specifies a function which generates an optional string displayed
1968 in the Summary buffer. The function is called with an article
1969 HEADERS. The result must be a string excluding `[' and `]'. The
1970 default function returns a string like NNN:AUTHOR, where NNN is
1971 the number of lines in an article and AUTHOR is the name of the
1972 author.
1974 gnus-auto-extend-newsgroup
1975 Non-nil means visible articles are extended to forward and
1976 backward automatically if possible.
1978 gnus-auto-select-first
1979 Non-nil means the first unread article is selected automagically
1980 when a newsgroup is selected normally (by gnus-group-read-group).
1981 If you'd like to prevent automatic selection of the first unread
1982 article in some newsgroups, set the variable to nil in
1983 gnus-select-group-hook or gnus-apply-kill-hook.
1985 gnus-auto-select-next
1986 Non-nil means the next newsgroup is selected automagically at the
1987 end of the newsgroup. If the value is t and the next newsgroup is
1988 empty (no unread articles), GNUS will exit Summary mode and go
1989 back to Group mode. If the value is neither nil nor t, GNUS won't
1990 exit Summary mode but select the following unread newsgroup.
1991 Especially, if the value is the symbol `quietly', the next unread
1992 newsgroup will be selected without any confirmations.
1994 gnus-auto-select-same
1995 Non-nil means an article with the same subject as the current
1996 article is selected automagically like `rn -S'.
1998 gnus-auto-center-summary
1999 Non-nil means the point of Summary Mode window is always kept
2000 centered.
2002 gnus-break-pages
2003 Non-nil means an article is broken into pages at page delimiters.
2004 This may not work with some versions of GNU Emacs earlier than
2005 version 18.50.
2007 gnus-page-delimiter
2008 Specifies a regexp describing line-beginnings that separate pages
2009 of news article.
2011 [gnus-more-message is obsolete. overlay-arrow-string interfares
2012 with other subsystems, such as dbx mode.]
2014 gnus-digest-show-summary
2015 Non-nil means that a summary of digest messages is shown when
2016 reading a digest article using `gnus-summary-rmail-digest'
2017 command.
2019 gnus-digest-separator
2020 Specifies a regexp separating messages in a digest article.
2022 gnus-mail-reply-method
2023 gnus-mail-other-window-method
2024 Specifies a function to begin composing mail message using
2025 commands gnus-summary-reply and gnus-summary-mail-other-window.
2026 Functions gnus-mail-reply-using-mail and gnus-mail-reply-using-mhe
2027 are available for the value of gnus-mail-reply-method. And
2028 functions gnus-mail-other-window-using-mail and
2029 gnus-mail-other-window-using-mhe are available for the value of
2030 gnus-mail-other-window-method.
2032 gnus-mail-send-method
2033 Specifies a function to mail a message too which is being posted
2034 as an article. The message must have To: or Cc: field. The value
2035 of the variable send-mail-function is the default function which
2036 uses sendmail mail program.
2038 Various hooks for customization:
2039 gnus-summary-mode-hook
2040 Entry to this mode calls the value with no arguments, if that
2041 value is non-nil.
2043 gnus-select-group-hook
2044 Called with no arguments when newsgroup is selected, if that value
2045 is non-nil. It is possible to sort subjects in this hook. See the
2046 documentation of this variable for more information.
2048 gnus-summary-prepare-hook
2049 Called with no arguments after a summary list is created in the
2050 Summary buffer, if that value is non-nil. If you'd like to modify
2051 the buffer, you can use this hook.
2053 gnus-select-article-hook
2054 Called with no arguments when an article is selected, if that
2055 value is non-nil. See the documentation of this variable for more
2056 information.
2058 gnus-select-digest-hook
2059 Called with no arguments when reading digest messages using Rmail,
2060 if that value is non-nil. This hook can be used to modify an
2061 article so that Rmail can work with it. See the documentation of
2062 the variable for more information.
2064 gnus-rmail-digest-hook
2065 Called with no arguments when reading digest messages using Rmail,
2066 if that value is non-nil. This hook is intended to customize Rmail
2067 mode.
2069 gnus-apply-kill-hook
2070 Called with no arguments when a newsgroup is selected and the
2071 Summary buffer is prepared. This hook is intended to apply a KILL
2072 file to the selected newsgroup. The format of KILL file is
2073 completely different from that of version 3.8. You have to rewrite
2074 them in the new format. See the documentation of Kill file mode
2075 for more information.
2077 gnus-mark-article-hook
2078 Called with no arguments when an article is selected at the first
2079 time. The hook is intended to mark an article as read (or unread)
2080 automatically when it is selected. See the documentation of the
2081 variable for more information.
2083 gnus-exit-group-hook
2084 Called with no arguments when exiting the current newsgroup, if
2085 that value is non-nil. If your machine is so slow that exiting
2086 from Summary mode takes very long time, inhibit marking articles
2087 as read using cross-references by setting the variable
2088 gnus-use-cross-reference to nil in this hook."
2089 (interactive)
2090 (kill-all-local-variables)
2091 ;; Gee. Why don't you upgrade?
2092 (cond ((boundp 'mode-line-modified)
2093 (setq mode-line-modified "--- "))
2094 ((listp (default-value 'mode-line-format))
2095 (setq mode-line-format
2096 (cons "--- " (cdr (default-value 'mode-line-format))))))
2097 ;; To disable display-time facility.
2098 ;;(make-local-variable 'global-mode-string)
2099 ;;(setq global-mode-string nil)
2100 (setq major-mode 'gnus-summary-mode)
2101 (setq mode-name "Summary")
2102 ;;(setq mode-line-process '(" " gnus-newsgroup-name))
2103 (make-local-variable 'minor-mode-alist)
2104 (or (assq 'gnus-show-threads minor-mode-alist)
2105 (setq minor-mode-alist
2106 (cons (list 'gnus-show-threads " Thread") minor-mode-alist)))
2107 (gnus-summary-set-mode-line)
2108 (use-local-map gnus-summary-mode-map)
2109 (buffer-flush-undo (current-buffer))
2110 (setq buffer-read-only t) ;Disable modification
2111 (setq truncate-lines t) ;Stop line folding
2112 (setq selective-display t)
2113 (setq selective-display-ellipses t) ;Display `...'
2114 ;;(setq case-fold-search t)
2115 (run-hooks 'gnus-summary-mode-hook))
2117 (defun gnus-summary-setup-buffer ()
2118 "Initialize Summary buffer."
2119 (if (get-buffer gnus-summary-buffer)
2120 (set-buffer gnus-summary-buffer)
2121 (set-buffer (get-buffer-create gnus-summary-buffer))
2122 (gnus-summary-mode)
2125 (defun gnus-summary-read-group (group &optional show-all no-article)
2126 "Start reading news in newsgroup GROUP.
2127 If optional 1st argument SHOW-ALL is non-nil, already read articles are
2128 also listed.
2129 If optional 2nd argument NO-ARTICLE is non-nil, no article is selected
2130 initially."
2131 (message "Retrieving newsgroup: %s..." group)
2132 (if (gnus-select-newsgroup group show-all)
2133 (progn
2134 ;; Don't switch-to-buffer to prevent displaying old contents
2135 ;; of the buffer until new subjects list is created.
2136 ;; Suggested by Juha Heinanen <jh@tut.fi>
2137 (gnus-summary-setup-buffer)
2138 ;; You can change the order of subjects in this hook.
2139 (run-hooks 'gnus-select-group-hook)
2140 (gnus-summary-prepare)
2141 ;; Function `gnus-apply-kill-file' must be called in this hook.
2142 (run-hooks 'gnus-apply-kill-hook)
2143 (if (zerop (buffer-size))
2144 ;; This newsgroup is empty.
2145 (progn
2146 (gnus-summary-catchup-and-exit nil t) ;Without confirmations.
2147 (message "No unread news"))
2148 ;; Hide conversation thread subtrees. We cannot do this in
2149 ;; gnus-summary-prepare-hook since kill processing may not
2150 ;; work with hidden articles.
2151 (and gnus-show-threads
2152 gnus-thread-hide-subtree
2153 (gnus-summary-hide-all-threads))
2154 ;; Show first unread article if requested.
2155 (goto-char (point-min))
2156 (if (and (not no-article)
2157 gnus-auto-select-first
2158 (gnus-summary-first-unread-article))
2159 ;; Window is configured automatically.
2160 ;; Current buffer may be changed as a result of hook
2161 ;; evaluation, especially by gnus-summary-rmail-digest
2162 ;; command, so we should adjust cursor point carefully.
2163 (if (eq (current-buffer) (get-buffer gnus-summary-buffer))
2164 (progn
2165 ;; Adjust cursor point.
2166 (beginning-of-line)
2167 (search-forward ":" nil t)))
2168 (gnus-configure-windows 'summary)
2169 (pop-to-buffer gnus-summary-buffer)
2170 (gnus-summary-set-mode-line)
2171 ;; I sometime get confused with the old Article buffer.
2172 (if (get-buffer gnus-article-buffer)
2173 (if (get-buffer-window gnus-article-buffer)
2174 (save-excursion
2175 (set-buffer gnus-article-buffer)
2176 (let ((buffer-read-only nil))
2177 (erase-buffer)))
2178 (kill-buffer gnus-article-buffer)))
2179 ;; Adjust cursor point.
2180 (beginning-of-line)
2181 (search-forward ":" nil t))
2183 ;; Cannot select newsgroup GROUP.
2184 (if (gnus-gethash group gnus-active-hashtb)
2185 (progn
2186 ;; If NNTP is used, nntp_access file may not be installed
2187 ;; properly. Otherwise, may be active file problem.
2188 (ding)
2189 (message
2190 (gnus-nntp-message
2191 (format "Cannot select %s. May be security or active file problem." group)))
2192 (sit-for 0))
2193 ;; Check bogus newsgroups.
2194 ;; We must be in Group Mode buffer.
2195 (gnus-group-check-bogus-groups))
2198 (defun gnus-summary-prepare ()
2199 "Prepare summary list of current newsgroup in Summary buffer."
2200 (let ((buffer-read-only nil))
2201 ;; Note: The next codes are not actually used because the user who
2202 ;; want it can define them in gnus-select-group-hook.
2203 ;; Print verbose messages if too many articles are selected.
2204 ;; (and (numberp gnus-large-newsgroup)
2205 ;; (> (length gnus-newsgroup-headers) gnus-large-newsgroup)
2206 ;; (message "Preparing headers..."))
2207 (erase-buffer)
2208 (gnus-summary-prepare-threads
2209 (if gnus-show-threads
2210 (gnus-make-threads gnus-newsgroup-headers)
2211 gnus-newsgroup-headers) 0)
2212 ;; Erase header retrieval message.
2213 (message "")
2214 ;; Call hooks for modifying Summary buffer.
2215 ;; Suggested by sven@tde.LTH.Se (Sven Mattisson).
2216 (goto-char (point-min))
2217 (run-hooks 'gnus-summary-prepare-hook)
2220 ;; Basic ideas by Paul Dworkin <paul@media-lab.media.mit.edu>
2221 ;; Subject bug fix by jbw@bigbird.bu.edu (Joe Wells)
2223 (defun gnus-summary-prepare-threads (threads level &optional parent-subject)
2224 "Prepare Summary buffer from THREADS and indentation LEVEL.
2225 THREADS is a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...]).'
2226 Optional PARENT-SUBJECT specifies the subject of the parent."
2227 (let ((thread nil)
2228 (header nil)
2229 (number nil)
2230 (subject nil)
2231 (child-subject nil)
2232 (parent-subject (or parent-subject ""))
2233 ;; `M Indent NUM: [OPT] SUBJECT'
2234 (cntl (format "%%s %%s%%%dd: [%%s] %%s\n"
2235 (length (prin1-to-string gnus-newsgroup-end)))))
2236 (while threads
2237 (setq thread (car threads))
2238 (setq threads (cdr threads))
2239 ;; If thread is a cons, hierarchical threads is given.
2240 ;; Otherwise, thread itself is header.
2241 (if (consp thread)
2242 (setq header (car thread))
2243 (setq header thread))
2244 ;; Print valid header only.
2245 (if (vectorp header) ;Depends on nntp.el.
2246 (progn
2247 (setq number (nntp-header-number header))
2248 (setq subject (nntp-header-subject header))
2249 (setq child-subject (gnus-simplify-subject subject 're-only))
2250 (insert
2251 (format cntl
2252 ;; Read or not.
2253 (cond ((memq number gnus-newsgroup-marked) "-")
2254 ((memq number gnus-newsgroup-unreads) " ")
2255 (t "D"))
2256 ;; Thread level.
2257 (make-string (* level gnus-thread-indent-level) ? )
2258 ;; Article number.
2259 number
2260 ;; Optional headers.
2261 (or (and gnus-optional-headers
2262 (funcall gnus-optional-headers header)) "")
2263 ;; Its subject string.
2264 (concat (if (or (zerop level)
2265 (not gnus-thread-hide-subject)
2266 ;; Subject is different from the parent.
2267 (not (string-equal
2268 parent-subject child-subject)))
2270 (make-string (window-width) ? ))
2271 subject)
2274 ;; Print subthreads.
2275 (and (consp thread)
2276 (cdr thread)
2277 (gnus-summary-prepare-threads
2278 (cdr thread) (1+ level) child-subject))
2281 ;;(defun gnus-summary-set-mode-line ()
2282 ;; "Set Summary mode line string."
2283 ;; ;; The value must be a string to escape %-constructs.
2284 ;; (let ((subject
2285 ;; (if gnus-current-headers
2286 ;; (nntp-header-subject gnus-current-headers) gnus-newsgroup-name)))
2287 ;; (setq mode-line-buffer-identification
2288 ;; (concat "GNUS: "
2289 ;; subject
2290 ;; ;; Enough spaces to pad subject to 17 positions.
2291 ;; (make-string (max 0 (- 17 (length subject))) ? ))))
2292 ;; (set-buffer-modified-p t))
2294 ;; New implementation in gnus 3.14.3
2296 (defun gnus-summary-set-mode-line ()
2297 "Set Summary mode line string.
2298 If you don't like it, define your own gnus-summary-set-mode-line."
2299 (let ((unmarked
2300 (- (length gnus-newsgroup-unreads)
2301 (length (gnus-intersection
2302 gnus-newsgroup-unreads gnus-newsgroup-marked))))
2303 (unselected
2304 (- (length gnus-newsgroup-unselected)
2305 (length (gnus-intersection
2306 gnus-newsgroup-unselected gnus-newsgroup-marked)))))
2307 (setq mode-line-buffer-identification
2308 (list 17
2309 (format "GNUS: %s%s %s"
2310 gnus-newsgroup-name
2311 (if gnus-current-article
2312 (format "/%d" gnus-current-article) "")
2313 ;; Basic ideas by tale@pawl.rpi.edu.
2314 (cond ((and (zerop unmarked)
2315 (zerop unselected))
2317 ((zerop unselected)
2318 (format "{%d more}" unmarked))
2320 (format "{%d(+%d) more}" unmarked unselected)))
2321 ))))
2322 (set-buffer-modified-p t))
2324 ;; GNUS Summary mode command.
2326 (defun gnus-summary-search-group (&optional backward)
2327 "Search for next unread newsgroup.
2328 If optional argument BACKWARD is non-nil, search backward instead."
2329 (save-excursion
2330 (set-buffer gnus-group-buffer)
2331 (save-excursion
2332 ;; We don't want to alter current point of Group mode buffer.
2333 (if (gnus-group-search-forward backward nil)
2334 (gnus-group-group-name))
2337 (defun gnus-summary-search-subject (backward unread subject)
2338 "Search for article forward.
2339 If 1st argument BACKWARD is non-nil, search backward.
2340 If 2nd argument UNREAD is non-nil, only unread article is selected.
2341 If 3rd argument SUBJECT is non-nil, the article which has
2342 the same subject will be searched for."
2343 (let ((func
2344 (if backward
2345 (function re-search-backward) (function re-search-forward)))
2346 (article nil)
2347 ;; We have to take care of hidden lines.
2348 (regexp
2349 (format "^%s[ \t]+\\([0-9]+\\):.\\[[^]\r\n]*\\][ \t]+%s"
2350 ;;(if unread " " ".")
2351 (cond ((eq unread t) " ") (unread "[ ---]") (t "."))
2352 (if subject
2353 (concat "\\([Rr][Ee]:[ \t]+\\)*"
2354 (regexp-quote (gnus-simplify-subject subject))
2355 ;; Ignore words in parentheses.
2356 "\\([ \t]*([^\r\n]*)\\)*[ \t]*\\(\r\\|$\\)")
2359 (if backward
2360 (beginning-of-line)
2361 (end-of-line))
2362 (if (funcall func regexp nil t)
2363 (setq article
2364 (string-to-int
2365 (buffer-substring (match-beginning 1) (match-end 1)))))
2366 ;; Adjust cursor point.
2367 (beginning-of-line)
2368 (search-forward ":" nil t)
2369 ;; This is the result.
2370 article
2373 (defun gnus-summary-search-forward (&optional unread subject)
2374 "Search for article forward.
2375 If 1st optional argument UNREAD is non-nil, only unread article is selected.
2376 If 2nd optional argument SUBJECT is non-nil, the article which has
2377 the same subject will be searched for."
2378 (gnus-summary-search-subject nil unread subject))
2380 (defun gnus-summary-search-backward (&optional unread subject)
2381 "Search for article backward.
2382 If 1st optional argument UNREAD is non-nil, only unread article is selected.
2383 If 2nd optional argument SUBJECT is non-nil, the article which has
2384 the same subject will be searched for."
2385 (gnus-summary-search-subject t unread subject))
2387 (defun gnus-summary-article-number ()
2388 "Article number around point. If nothing, return current number."
2389 (save-excursion
2390 (beginning-of-line)
2391 (if (looking-at ".[ \t]+\\([0-9]+\\):")
2392 (string-to-int
2393 (buffer-substring (match-beginning 1) (match-end 1)))
2394 ;; If search fail, return current article number.
2395 gnus-current-article
2398 (defun gnus-summary-subject-string ()
2399 "Return current subject string or nil if nothing."
2400 (save-excursion
2401 ;; It is possible to implement this function using
2402 ;; `gnus-summary-article-number' and `gnus-newsgroup-headers'.
2403 (beginning-of-line)
2404 ;; We have to take care of hidden lines.
2405 (if (looking-at ".[ \t]+[0-9]+:.\\[[^]\r\n]*\\][ \t]+\\([^\r\n]*\\)[\r\n]")
2406 (buffer-substring (match-beginning 1) (match-end 1)))
2409 (defun gnus-summary-goto-subject (article)
2410 "Move point to ARTICLE's subject."
2411 (interactive
2412 (list
2413 (string-to-int
2414 (completing-read "Article number: "
2415 (mapcar
2416 (function
2417 (lambda (headers)
2418 (list
2419 (int-to-string (nntp-header-number headers)))))
2420 gnus-newsgroup-headers)
2421 nil 'require-match))))
2422 (let ((current (point)))
2423 (goto-char (point-min))
2424 (or (and article (re-search-forward (format "^.[ \t]+%d:" article) nil t))
2425 (progn (goto-char current) nil))
2428 (defun gnus-summary-recenter ()
2429 "Center point in Summary window."
2430 ;; Scroll window so as to cursor comes center of Summary window
2431 ;; only when article is displayed.
2432 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
2433 ;; Recenter only when requested.
2434 ;; Subbested by popovich@park.cs.columbia.edu
2435 (and gnus-auto-center-summary
2436 (get-buffer-window gnus-article-buffer)
2437 (< (/ (- (window-height) 1) 2)
2438 (count-lines (point) (point-max)))
2439 (recenter (/ (- (window-height) 2) 2))))
2441 ;; Walking around Group mode buffer.
2443 (defun gnus-summary-jump-to-group (newsgroup)
2444 "Move point to NEWSGROUP in Group mode buffer."
2445 ;; Keep update point of Group mode buffer if visible.
2446 (if (eq (current-buffer)
2447 (get-buffer gnus-group-buffer))
2448 (save-window-excursion
2449 ;; Take care of tree window mode.
2450 (if (get-buffer-window gnus-group-buffer)
2451 (pop-to-buffer gnus-group-buffer))
2452 (gnus-group-jump-to-group newsgroup))
2453 (save-excursion
2454 ;; Take care of tree window mode.
2455 (if (get-buffer-window gnus-group-buffer)
2456 (pop-to-buffer gnus-group-buffer)
2457 (set-buffer gnus-group-buffer))
2458 (gnus-group-jump-to-group newsgroup))))
2460 (defun gnus-summary-next-group (no-article)
2461 "Exit current newsgroup and then select next unread newsgroup.
2462 If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
2463 (interactive "P")
2464 ;; Make sure Group mode buffer point is on current newsgroup.
2465 (gnus-summary-jump-to-group gnus-newsgroup-name)
2466 (let ((group (gnus-summary-search-group)))
2467 (if (null group)
2468 (progn
2469 (message "Exiting %s..." gnus-newsgroup-name)
2470 (gnus-summary-exit)
2471 (message ""))
2472 (message "Selecting %s..." group)
2473 (gnus-summary-exit t) ;Exit Summary mode temporary.
2474 ;; We are now in Group mode buffer.
2475 ;; Make sure Group mode buffer point is on GROUP.
2476 (gnus-summary-jump-to-group group)
2477 (gnus-summary-read-group group nil no-article)
2478 (or (eq (current-buffer)
2479 (get-buffer gnus-summary-buffer))
2480 (eq gnus-auto-select-next t)
2481 ;; Expected newsgroup has nothing to read since the articles
2482 ;; are marked as read by cross-referencing. So, try next
2483 ;; newsgroup. (Make sure we are in Group mode buffer now.)
2484 (and (eq (current-buffer)
2485 (get-buffer gnus-group-buffer))
2486 (gnus-group-group-name)
2487 (gnus-summary-read-group
2488 (gnus-group-group-name) nil no-article))
2492 (defun gnus-summary-prev-group (no-article)
2493 "Exit current newsgroup and then select previous unread newsgroup.
2494 If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
2495 (interactive "P")
2496 ;; Make sure Group mode buffer point is on current newsgroup.
2497 (gnus-summary-jump-to-group gnus-newsgroup-name)
2498 (let ((group (gnus-summary-search-group t)))
2499 (if (null group)
2500 (progn
2501 (message "Exiting %s..." gnus-newsgroup-name)
2502 (gnus-summary-exit)
2503 (message ""))
2504 (message "Selecting %s..." group)
2505 (gnus-summary-exit t) ;Exit Summary mode temporary.
2506 ;; We are now in Group mode buffer.
2507 ;; We have to adjust point of Group mode buffer because current
2508 ;; point is moved to next unread newsgroup by exiting.
2509 (gnus-summary-jump-to-group group)
2510 (gnus-summary-read-group group nil no-article)
2511 (or (eq (current-buffer)
2512 (get-buffer gnus-summary-buffer))
2513 (eq gnus-auto-select-next t)
2514 ;; Expected newsgroup has nothing to read since the articles
2515 ;; are marked as read by cross-referencing. So, try next
2516 ;; newsgroup. (Make sure we are in Group mode buffer now.)
2517 (and (eq (current-buffer)
2518 (get-buffer gnus-group-buffer))
2519 (gnus-summary-search-group t)
2520 (gnus-summary-read-group
2521 (gnus-summary-search-group t) nil no-article))
2525 ;; Walking around summary lines.
2527 (defun gnus-summary-next-subject (n &optional unread)
2528 "Go to next N'th summary line.
2529 If optional argument UNREAD is non-nil, only unread article is selected."
2530 (interactive "p")
2531 (while (and (> n 1)
2532 (gnus-summary-search-forward unread))
2533 (setq n (1- n)))
2534 (cond ((gnus-summary-search-forward unread)
2535 (gnus-summary-recenter))
2536 (unread
2537 (message "No more unread articles"))
2539 (message "No more articles"))
2542 (defun gnus-summary-next-unread-subject (n)
2543 "Go to next N'th unread summary line."
2544 (interactive "p")
2545 (gnus-summary-next-subject n t))
2547 (defun gnus-summary-prev-subject (n &optional unread)
2548 "Go to previous N'th summary line.
2549 If optional argument UNREAD is non-nil, only unread article is selected."
2550 (interactive "p")
2551 (while (and (> n 1)
2552 (gnus-summary-search-backward unread))
2553 (setq n (1- n)))
2554 (cond ((gnus-summary-search-backward unread)
2555 (gnus-summary-recenter))
2556 (unread
2557 (message "No more unread articles"))
2559 (message "No more articles"))
2562 (defun gnus-summary-prev-unread-subject (n)
2563 "Go to previous N'th unread summary line."
2564 (interactive "p")
2565 (gnus-summary-prev-subject n t))
2567 ;; Walking around summary lines with displaying articles.
2569 (defun gnus-summary-expand-window ()
2570 "Expand Summary window to show headers full window."
2571 (interactive)
2572 (gnus-configure-windows 'summary)
2573 (pop-to-buffer gnus-summary-buffer))
2575 (defun gnus-summary-display-article (article &optional all-header)
2576 "Display ARTICLE in Article buffer."
2577 (if (null article)
2579 (gnus-configure-windows 'article)
2580 (pop-to-buffer gnus-summary-buffer)
2581 (gnus-article-prepare article all-header)
2582 (gnus-summary-recenter)
2583 (gnus-summary-set-mode-line)
2584 (run-hooks 'gnus-select-article-hook)
2585 ;; Successfully display article.
2589 (defun gnus-summary-select-article (&optional all-headers force)
2590 "Select the current article.
2591 Optional first argument ALL-HEADERS is non-nil, show all header fields.
2592 Optional second argument FORCE is nil, the article is only selected
2593 again when current header does not match with ALL-HEADERS option."
2594 (let ((article (gnus-summary-article-number))
2595 (all-headers (not (not all-headers)))) ;Must be T or NIL.
2596 (if (or (null gnus-current-article)
2597 (/= article gnus-current-article)
2598 (and force (not (eq all-headers gnus-have-all-headers))))
2599 ;; The selected one is different from that of the current article.
2600 (gnus-summary-display-article article all-headers)
2601 (gnus-configure-windows 'article)
2602 (pop-to-buffer gnus-summary-buffer))
2605 (defun gnus-summary-set-current-mark (&optional current-mark)
2606 "Put `+' at the current article.
2607 Optional argument specifies CURRENT-MARK instead of `+'."
2608 (save-excursion
2609 (set-buffer gnus-summary-buffer)
2610 (let ((buffer-read-only nil))
2611 (goto-char (point-min))
2612 ;; First of all clear mark at last article.
2613 (if (re-search-forward "^.[ \t]+[0-9]+:[^ \t]" nil t)
2614 (progn
2615 (delete-char -1)
2616 (insert " ")
2617 (goto-char (point-min))))
2618 (if (re-search-forward (format "^.[ \t]+%d:" gnus-current-article) nil t)
2619 (progn
2620 (delete-char 1)
2621 (insert (or current-mark "+"))))
2624 ;;(defun gnus-summary-next-article (unread &optional subject)
2625 ;; "Select article after current one.
2626 ;;If argument UNREAD is non-nil, only unread article is selected."
2627 ;; (interactive "P")
2628 ;; (cond ((gnus-summary-display-article
2629 ;; (gnus-summary-search-forward unread subject)))
2630 ;; (unread
2631 ;; (message "No more unread articles"))
2632 ;; (t
2633 ;; (message "No more articles"))
2634 ;; ))
2636 (defun gnus-summary-next-article (unread &optional subject)
2637 "Select article after current one.
2638 If argument UNREAD is non-nil, only unread article is selected."
2639 (interactive "P")
2640 (let ((header nil))
2641 (cond ((gnus-summary-display-article
2642 (gnus-summary-search-forward unread subject)))
2643 ((and subject
2644 gnus-auto-select-same
2645 (gnus-set-difference gnus-newsgroup-unreads
2646 gnus-newsgroup-marked)
2647 (memq this-command
2648 '(gnus-summary-next-unread-article
2649 gnus-summary-next-page
2650 gnus-summary-kill-same-subject-and-select
2651 ;;gnus-summary-next-article
2652 ;;gnus-summary-next-same-subject
2653 ;;gnus-summary-next-unread-same-subject
2655 ;; Wrap article pointer if there are unread articles.
2656 ;; Hook function, such as gnus-summary-rmail-digest, may
2657 ;; change current buffer, so need check.
2658 (let ((buffer (current-buffer))
2659 (last-point (point)))
2660 ;; No more articles with same subject, so jump to the first
2661 ;; unread article.
2662 (gnus-summary-first-unread-article)
2663 ;;(and (eq buffer (current-buffer))
2664 ;; (= (point) last-point)
2665 ;; ;; Ignore given SUBJECT, and try again.
2666 ;; (gnus-summary-next-article unread nil))
2667 (and (eq buffer (current-buffer))
2668 (< (point) last-point)
2669 (message "Wrapped"))
2671 ((and gnus-auto-extend-newsgroup
2672 (not unread) ;Not unread only
2673 (not subject) ;Only if subject is not specified.
2674 (setq header (gnus-more-header-forward)))
2675 ;; Extend to next article if possible.
2676 ;; Basic ideas by himacdonald@watdragon.waterloo.edu
2677 (gnus-extend-newsgroup header nil)
2678 ;; Threads feature must be turned off.
2679 (let ((buffer-read-only nil))
2680 (goto-char (point-max))
2681 (gnus-summary-prepare-threads (list header) 0))
2682 (gnus-summary-goto-article gnus-newsgroup-end))
2684 ;; Select next newsgroup automatically if requested.
2685 (let ((cmd (string-to-char (this-command-keys)))
2686 (group (gnus-summary-search-group))
2687 (auto-select
2688 (and gnus-auto-select-next
2689 ;;(null (gnus-set-difference gnus-newsgroup-unreads
2690 ;; gnus-newsgroup-marked))
2691 (memq this-command
2692 '(gnus-summary-next-unread-article
2693 gnus-summary-next-article
2694 gnus-summary-next-page
2695 gnus-summary-next-same-subject
2696 gnus-summary-next-unread-same-subject
2697 gnus-summary-kill-same-subject
2698 gnus-summary-kill-same-subject-and-select
2700 ;; Ignore characters typed ahead.
2701 (not (input-pending-p))
2703 (message "No more%s articles%s"
2704 (if unread " unread" "")
2705 (if (and auto-select
2706 (not (eq gnus-auto-select-next 'quietly)))
2707 (if group
2708 (format " (Type %s for %s [%d])"
2709 (key-description (char-to-string cmd))
2710 group
2711 (nth 1 (gnus-gethash group
2712 gnus-unread-hashtb)))
2713 (format " (Type %s to exit %s)"
2714 (key-description (char-to-string cmd))
2715 gnus-newsgroup-name
2717 ""))
2718 ;; Select next unread newsgroup automagically.
2719 (cond ((and auto-select
2720 (eq gnus-auto-select-next 'quietly))
2721 ;; Select quietly.
2722 (gnus-summary-next-group nil))
2723 (auto-select
2724 ;; Confirm auto selection.
2725 (let ((char (read-char)))
2726 (if (= char cmd)
2727 (gnus-summary-next-group nil)
2728 (setq unread-command-char char))))
2733 (defun gnus-summary-next-unread-article ()
2734 "Select unread article after current one."
2735 (interactive)
2736 (gnus-summary-next-article t (and gnus-auto-select-same
2737 (gnus-summary-subject-string))))
2739 (defun gnus-summary-prev-article (unread &optional subject)
2740 "Select article before current one.
2741 If argument UNREAD is non-nil, only unread article is selected."
2742 (interactive "P")
2743 (let ((header nil))
2744 (cond ((gnus-summary-display-article
2745 (gnus-summary-search-backward unread subject)))
2746 ((and subject
2747 gnus-auto-select-same
2748 (gnus-set-difference gnus-newsgroup-unreads
2749 gnus-newsgroup-marked)
2750 (memq this-command
2751 '(gnus-summary-prev-unread-article
2752 ;;gnus-summary-prev-page
2753 ;;gnus-summary-prev-article
2754 ;;gnus-summary-prev-same-subject
2755 ;;gnus-summary-prev-unread-same-subject
2757 ;; Ignore given SUBJECT, and try again.
2758 (gnus-summary-prev-article unread nil))
2759 (unread
2760 (message "No more unread articles"))
2761 ((and gnus-auto-extend-newsgroup
2762 (not subject) ;Only if subject is not specified.
2763 (setq header (gnus-more-header-backward)))
2764 ;; Extend to previous article if possible.
2765 ;; Basic ideas by himacdonald@watdragon.waterloo.edu
2766 (gnus-extend-newsgroup header t)
2767 (let ((buffer-read-only nil))
2768 (goto-char (point-min))
2769 (gnus-summary-prepare-threads (list header) 0))
2770 (gnus-summary-goto-article gnus-newsgroup-begin))
2772 (message "No more articles"))
2775 (defun gnus-summary-prev-unread-article ()
2776 "Select unred article before current one."
2777 (interactive)
2778 (gnus-summary-prev-article t (and gnus-auto-select-same
2779 (gnus-summary-subject-string))))
2781 (defun gnus-summary-next-page (lines)
2782 "Show next page of selected article.
2783 If end of article, select next article.
2784 Argument LINES specifies lines to be scrolled up."
2785 (interactive "P")
2786 (let ((article (gnus-summary-article-number))
2787 (endp nil))
2788 (if (or (null gnus-current-article)
2789 (/= article gnus-current-article))
2790 ;; Selected subject is different from current article's.
2791 (gnus-summary-display-article article)
2792 (gnus-configure-windows 'article)
2793 (pop-to-buffer gnus-summary-buffer)
2794 (gnus-eval-in-buffer-window gnus-article-buffer
2795 (setq endp (gnus-article-next-page lines)))
2796 (cond ((and endp lines)
2797 (message "End of message"))
2798 ((and endp (null lines))
2799 (gnus-summary-next-unread-article)))
2802 (defun gnus-summary-prev-page (lines)
2803 "Show previous page of selected article.
2804 Argument LINES specifies lines to be scrolled down."
2805 (interactive "P")
2806 (let ((article (gnus-summary-article-number)))
2807 (if (or (null gnus-current-article)
2808 (/= article gnus-current-article))
2809 ;; Selected subject is different from current article's.
2810 (gnus-summary-display-article article)
2811 (gnus-configure-windows 'article)
2812 (pop-to-buffer gnus-summary-buffer)
2813 (gnus-eval-in-buffer-window gnus-article-buffer
2814 (gnus-article-prev-page lines))
2817 (defun gnus-summary-scroll-up (lines)
2818 "Scroll up (or down) one line current article.
2819 Argument LINES specifies lines to be scrolled up (or down if negative)."
2820 (interactive "p")
2821 (gnus-summary-select-article)
2822 (gnus-eval-in-buffer-window gnus-article-buffer
2823 (cond ((> lines 0)
2824 (if (gnus-article-next-page lines)
2825 (message "End of message")))
2826 ((< lines 0)
2827 (gnus-article-prev-page (- 0 lines))))
2830 (defun gnus-summary-next-same-subject ()
2831 "Select next article which has the same subject as current one."
2832 (interactive)
2833 (gnus-summary-next-article nil (gnus-summary-subject-string)))
2835 (defun gnus-summary-prev-same-subject ()
2836 "Select previous article which has the same subject as current one."
2837 (interactive)
2838 (gnus-summary-prev-article nil (gnus-summary-subject-string)))
2840 (defun gnus-summary-next-unread-same-subject ()
2841 "Select next unread article which has the same subject as current one."
2842 (interactive)
2843 (gnus-summary-next-article t (gnus-summary-subject-string)))
2845 (defun gnus-summary-prev-unread-same-subject ()
2846 "Select previous unread article which has the same subject as current one."
2847 (interactive)
2848 (gnus-summary-prev-article t (gnus-summary-subject-string)))
2850 (defun gnus-summary-refer-parent-article (child)
2851 "Refer parent article of current article.
2852 If a prefix argument CHILD is non-nil, go back to the child article
2853 using internally maintained articles history.
2854 NOTE: This command may not work with nnspool.el."
2855 (interactive "P")
2856 (gnus-summary-select-article t t) ;Request all headers.
2857 (let ((referenced-id nil)) ;Message-id of parent or child article.
2858 (if child
2859 ;; Go back to child article using history.
2860 (gnus-summary-refer-article nil)
2861 (gnus-eval-in-buffer-window gnus-article-buffer
2862 ;; Look for parent Message-ID.
2863 ;; We cannot use gnus-current-headers to get references
2864 ;; because we may be looking at parent or referred article.
2865 (let ((references (gnus-fetch-field "References")))
2866 ;; Get the last message-id in the references.
2867 (and references
2868 (string-match "\\(<[^<>]+>\\)[^>]*\\'" references)
2869 (setq referenced-id
2870 (substring references
2871 (match-beginning 1) (match-end 1))))
2873 (if (stringp referenced-id)
2874 (gnus-summary-refer-article referenced-id)
2875 (error "No more parents"))
2878 (defun gnus-summary-refer-article (message-id)
2879 "Refer article specified by MESSAGE-ID.
2880 If the MESSAGE-ID is nil or an empty string, Message-ID is poped from
2881 internally maintained articles history.
2882 NOTE: This command may not work with nnspool.el nor mhspool.el."
2883 (interactive "sMessage-ID: ")
2884 ;; Make sure that this command depends on the fact that article
2885 ;; related information is not updated when an article is retrieved
2886 ;; by Message-ID.
2887 (gnus-summary-select-article t t) ;Request all headers.
2888 (if (and (stringp message-id)
2889 (> (length message-id) 0))
2890 (gnus-eval-in-buffer-window gnus-article-buffer
2891 ;; Construct the correct Message-ID if necessary.
2892 ;; Suggested by tale@pawl.rpi.edu.
2893 (or (string-match "^<" message-id)
2894 (setq message-id (concat "<" message-id)))
2895 (or (string-match ">$" message-id)
2896 (setq message-id (concat message-id ">")))
2897 ;; Push current message-id on history.
2898 ;; We cannot use gnus-current-headers to get current
2899 ;; message-id because we may be looking at parent or referred
2900 ;; article.
2901 (let ((current (gnus-fetch-field "Message-ID")))
2902 (or (equal current message-id) ;Nothing to do.
2903 (equal current (car gnus-current-history))
2904 (setq gnus-current-history
2905 (cons current gnus-current-history)))
2907 ;; Pop message-id from history.
2908 (setq message-id (car gnus-current-history))
2909 (setq gnus-current-history (cdr gnus-current-history)))
2910 (if (stringp message-id)
2911 ;; Retrieve article by message-id. This may not work with
2912 ;; nnspool nor mhspool.
2913 (gnus-article-prepare message-id t)
2914 (error "No such references"))
2917 (defun gnus-summary-next-digest (nth)
2918 "Move to head of NTH next digested message."
2919 (interactive "p")
2920 (gnus-summary-select-article)
2921 (gnus-eval-in-buffer-window gnus-article-buffer
2922 (gnus-article-next-digest (or nth 1))
2925 (defun gnus-summary-prev-digest (nth)
2926 "Move to head of NTH previous digested message."
2927 (interactive "p")
2928 (gnus-summary-select-article)
2929 (gnus-eval-in-buffer-window gnus-article-buffer
2930 (gnus-article-prev-digest (or nth 1))
2933 (defun gnus-summary-first-unread-article ()
2934 "Select first unread article. Return non-nil if successfully selected."
2935 (interactive)
2936 (let ((begin (point)))
2937 (goto-char (point-min))
2938 (if (re-search-forward "^ [ \t]+[0-9]+:" nil t)
2939 (gnus-summary-display-article (gnus-summary-article-number))
2940 ;; If there is no unread articles, stay there.
2941 (goto-char begin)
2942 ;;(gnus-summary-display-article (gnus-summary-article-number))
2943 (message "No more unread articles")
2948 (defun gnus-summary-isearch-article ()
2949 "Do incremental search forward on current article."
2950 (interactive)
2951 (gnus-summary-select-article)
2952 (gnus-eval-in-buffer-window gnus-article-buffer
2953 (isearch-forward)))
2955 (defun gnus-summary-search-article-forward (regexp)
2956 "Search for an article containing REGEXP forward.
2957 gnus-select-article-hook is not called during the search."
2958 (interactive
2959 (list (read-string
2960 (concat "Search forward (regexp): "
2961 (if gnus-last-search-regexp
2962 (concat "(default " gnus-last-search-regexp ") "))))))
2963 (if (string-equal regexp "")
2964 (setq regexp (or gnus-last-search-regexp ""))
2965 (setq gnus-last-search-regexp regexp))
2966 (if (gnus-summary-search-article regexp nil)
2967 (gnus-eval-in-buffer-window gnus-article-buffer
2968 (recenter 0)
2969 ;;(sit-for 1)
2971 (error "Search failed: \"%s\"" regexp)
2974 (defun gnus-summary-search-article-backward (regexp)
2975 "Search for an article containing REGEXP backward.
2976 gnus-select-article-hook is not called during the search."
2977 (interactive
2978 (list (read-string
2979 (concat "Search backward (regexp): "
2980 (if gnus-last-search-regexp
2981 (concat "(default " gnus-last-search-regexp ") "))))))
2982 (if (string-equal regexp "")
2983 (setq regexp (or gnus-last-search-regexp ""))
2984 (setq gnus-last-search-regexp regexp))
2985 (if (gnus-summary-search-article regexp t)
2986 (gnus-eval-in-buffer-window gnus-article-buffer
2987 (recenter 0)
2988 ;;(sit-for 1)
2990 (error "Search failed: \"%s\"" regexp)
2993 (defun gnus-summary-search-article (regexp &optional backward)
2994 "Search for an article containing REGEXP.
2995 Optional argument BACKWARD means do search for backward.
2996 gnus-select-article-hook is not called during the search."
2997 (let ((gnus-select-article-hook nil) ;Disable hook.
2998 (gnus-mark-article-hook nil) ;Inhibit marking as read.
2999 (re-search
3000 (if backward
3001 (function re-search-backward) (function re-search-forward)))
3002 (found nil)
3003 (last nil))
3004 ;; Hidden thread subtrees must be searched for ,too.
3005 (gnus-summary-show-all-threads)
3006 ;; First of all, search current article.
3007 ;; We don't want to read article again from NNTP server nor reset
3008 ;; current point.
3009 (gnus-summary-select-article)
3010 (message "Searching article: %d..." gnus-current-article)
3011 (setq last gnus-current-article)
3012 (gnus-eval-in-buffer-window gnus-article-buffer
3013 (save-restriction
3014 (widen)
3015 ;; Begin search from current point.
3016 (setq found (funcall re-search regexp nil t))))
3017 ;; Then search next articles.
3018 (while (and (not found)
3019 (gnus-summary-display-article
3020 (gnus-summary-search-subject backward nil nil)))
3021 (message "Searching article: %d..." gnus-current-article)
3022 (gnus-eval-in-buffer-window gnus-article-buffer
3023 (save-restriction
3024 (widen)
3025 (goto-char (if backward (point-max) (point-min)))
3026 (setq found (funcall re-search regexp nil t)))
3028 (message "")
3029 ;; Adjust article pointer.
3030 (or (eq last gnus-current-article)
3031 (setq gnus-last-article last))
3032 ;; Return T if found such article.
3033 found
3036 (defun gnus-summary-execute-command (field regexp command &optional backward)
3037 "If FIELD of article header matches REGEXP, execute a COMMAND string.
3038 If FIELD is an empty string (or nil), entire article body is searched for.
3039 If optional (prefix) argument BACKWARD is non-nil, do backward instead."
3040 (interactive
3041 (list (let ((completion-ignore-case t))
3042 (completing-read "Field name: "
3043 '(("Number")("Subject")("From")
3044 ("Lines")("Date")("Id")
3045 ("Xref")("References"))
3046 nil 'require-match))
3047 (read-string "Regexp: ")
3048 (read-key-sequence "Command: ")
3049 current-prefix-arg))
3050 ;; Hidden thread subtrees must be searched for ,too.
3051 (gnus-summary-show-all-threads)
3052 ;; We don't want to change current point nor window configuration.
3053 (save-excursion
3054 (save-window-excursion
3055 (message "Executing %s..." (key-description command))
3056 ;; We'd like to execute COMMAND interactively so as to give arguments.
3057 (gnus-execute field regexp
3058 (` (lambda ()
3059 (call-interactively '(, (key-binding command)))))
3060 backward)
3061 (message "Executing %s... done" (key-description command)))))
3063 (defun gnus-summary-beginning-of-article ()
3064 "Go to beginning of article body"
3065 (interactive)
3066 (gnus-summary-select-article)
3067 (gnus-eval-in-buffer-window gnus-article-buffer
3068 (widen)
3069 (beginning-of-buffer)
3070 (if gnus-break-pages
3071 (gnus-narrow-to-page))
3074 (defun gnus-summary-end-of-article ()
3075 "Go to end of article body"
3076 (interactive)
3077 (gnus-summary-select-article)
3078 (gnus-eval-in-buffer-window gnus-article-buffer
3079 (widen)
3080 (end-of-buffer)
3081 (if gnus-break-pages
3082 (gnus-narrow-to-page))
3085 (defun gnus-summary-goto-article (article &optional all-headers)
3086 "Read ARTICLE if exists.
3087 Optional argument ALL-HEADERS means all headers are shown."
3088 (interactive
3089 (list
3090 (string-to-int
3091 (completing-read "Article number: "
3092 (mapcar
3093 (function
3094 (lambda (headers)
3095 (list
3096 (int-to-string (nntp-header-number headers)))))
3097 gnus-newsgroup-headers)
3098 nil 'require-match))))
3099 (if (gnus-summary-goto-subject article)
3100 (gnus-summary-display-article article all-headers)))
3102 (defun gnus-summary-goto-last-article ()
3103 "Go to last subject line."
3104 (interactive)
3105 (if gnus-last-article
3106 (gnus-summary-goto-article gnus-last-article)))
3108 (defun gnus-summary-show-article ()
3109 "Force to show current article."
3110 (interactive)
3111 ;; The following is a trick to force to read the current article again.
3112 (setq gnus-have-all-headers (not gnus-have-all-headers))
3113 (gnus-summary-select-article (not gnus-have-all-headers) t))
3115 (defun gnus-summary-toggle-header (arg)
3116 "Show original header if pruned header currently shown, or vice versa.
3117 With arg, show original header iff arg is positive."
3118 (interactive "P")
3119 ;; Variable gnus-show-all-headers must be NIL to toggle really.
3120 (let ((gnus-show-all-headers nil)
3121 (all-headers
3122 (if (null arg) (not gnus-have-all-headers)
3123 (> (prefix-numeric-value arg) 0))))
3124 (gnus-summary-select-article all-headers t)))
3126 (defun gnus-summary-show-all-headers ()
3127 "Show original article header."
3128 (interactive)
3129 (gnus-summary-select-article t t))
3131 (defun gnus-summary-toggle-mime (arg)
3132 "Toggle MIME processing.
3133 With arg, turn MIME processing on iff arg is positive."
3134 (interactive "P")
3135 (setq gnus-show-mime
3136 (if (null arg) (not gnus-show-mime)
3137 (> (prefix-numeric-value arg) 0)))
3138 ;; The following is a trick to force to read the current article again.
3139 (setq gnus-have-all-headers (not gnus-have-all-headers))
3140 (gnus-summary-select-article (not gnus-have-all-headers) t))
3142 (defun gnus-summary-stop-page-breaking ()
3143 "Stop page breaking by linefeed temporary (Widen article buffer)."
3144 (interactive)
3145 (gnus-summary-select-article)
3146 (gnus-eval-in-buffer-window gnus-article-buffer
3147 (widen)
3150 (defun gnus-summary-kill-same-subject-and-select (unmark)
3151 "Mark articles which has the same subject as read, and then select next.
3152 If argument UNMARK is positive, remove any kinds of marks.
3153 If argument UNMARK is negative, mark articles as unread instead."
3154 (interactive "P")
3155 (if unmark
3156 (setq unmark (prefix-numeric-value unmark)))
3157 (let ((count
3158 (gnus-summary-mark-same-subject
3159 (gnus-summary-subject-string) unmark)))
3160 ;; Select next unread article. If auto-select-same mode, should
3161 ;; select the first unread article.
3162 (gnus-summary-next-article t (and gnus-auto-select-same
3163 (gnus-summary-subject-string)))
3164 (message "%d articles are marked as %s"
3165 count (if unmark "unread" "read"))
3168 (defun gnus-summary-kill-same-subject (unmark)
3169 "Mark articles which has the same subject as read.
3170 If argument UNMARK is positive, remove any kinds of marks.
3171 If argument UNMARK is negative, mark articles as unread instead."
3172 (interactive "P")
3173 (if unmark
3174 (setq unmark (prefix-numeric-value unmark)))
3175 (let ((count
3176 (gnus-summary-mark-same-subject
3177 (gnus-summary-subject-string) unmark)))
3178 ;; If marked as read, go to next unread subject.
3179 (if (null unmark)
3180 ;; Go to next unread subject.
3181 (gnus-summary-next-subject 1 t))
3182 (message "%d articles are marked as %s"
3183 count (if unmark "unread" "read"))
3186 (defun gnus-summary-mark-same-subject (subject &optional unmark)
3187 "Mark articles with same SUBJECT as read, and return marked number.
3188 If optional argument UNMARK is positive, remove any kinds of marks.
3189 If optional argument UNMARK is negative, mark articles as unread instead."
3190 (let ((count 1))
3191 (save-excursion
3192 (cond ((null unmark)
3193 (gnus-summary-mark-as-read nil "K"))
3194 ((> unmark 0)
3195 (gnus-summary-mark-as-unread nil t))
3197 (gnus-summary-mark-as-unread)))
3198 (while (and subject
3199 (gnus-summary-search-forward nil subject))
3200 (cond ((null unmark)
3201 (gnus-summary-mark-as-read nil "K"))
3202 ((> unmark 0)
3203 (gnus-summary-mark-as-unread nil t))
3205 (gnus-summary-mark-as-unread)))
3206 (setq count (1+ count))
3208 ;; Hide killed thread subtrees. Does not work properly always.
3209 ;;(and (null unmark)
3210 ;; gnus-thread-hide-killed
3211 ;; (gnus-summary-hide-thread))
3212 ;; Return number of articles marked as read.
3213 count
3216 (defun gnus-summary-mark-as-unread-forward (count)
3217 "Mark current article as unread, and then go forward.
3218 Argument COUNT specifies number of articles marked as unread."
3219 (interactive "p")
3220 (while (> count 0)
3221 (gnus-summary-mark-as-unread nil nil)
3222 (gnus-summary-next-subject 1 nil)
3223 (setq count (1- count))))
3225 (defun gnus-summary-mark-as-unread-backward (count)
3226 "Mark current article as unread, and then go backward.
3227 Argument COUNT specifies number of articles marked as unread."
3228 (interactive "p")
3229 (while (> count 0)
3230 (gnus-summary-mark-as-unread nil nil)
3231 (gnus-summary-prev-subject 1 nil)
3232 (setq count (1- count))))
3234 (defun gnus-summary-mark-as-unread (&optional article clear-mark)
3235 "Mark current article as unread.
3236 Optional 1st argument ARTICLE specifies article number to be marked as unread.
3237 Optional 2nd argument CLEAR-MARK remove any kinds of mark."
3238 (save-excursion
3239 (set-buffer gnus-summary-buffer)
3240 ;; First of all, show hidden thread subtrees.
3241 (gnus-summary-show-thread)
3242 (let* ((buffer-read-only nil)
3243 (current (gnus-summary-article-number))
3244 (article (or article current)))
3245 (gnus-mark-article-as-unread article clear-mark)
3246 (if (or (eq article current)
3247 (gnus-summary-goto-subject article))
3248 (progn
3249 (beginning-of-line)
3250 (delete-char 1)
3251 (insert (if clear-mark " " "-"))))
3254 (defun gnus-summary-mark-as-read-forward (count)
3255 "Mark current article as read, and then go forward.
3256 Argument COUNT specifies number of articles marked as read"
3257 (interactive "p")
3258 (while (> count 0)
3259 (gnus-summary-mark-as-read)
3260 (gnus-summary-next-subject 1 'unread-only)
3261 (setq count (1- count))))
3263 (defun gnus-summary-mark-as-read-backward (count)
3264 "Mark current article as read, and then go backward.
3265 Argument COUNT specifies number of articles marked as read"
3266 (interactive "p")
3267 (while (> count 0)
3268 (gnus-summary-mark-as-read)
3269 (gnus-summary-prev-subject 1 'unread-only)
3270 (setq count (1- count))))
3272 (defun gnus-summary-mark-as-read (&optional article mark)
3273 "Mark current article as read.
3274 Optional 1st argument ARTICLE specifies article number to be marked as read.
3275 Optional 2nd argument MARK specifies a string inserted at beginning of line.
3276 Any kind of string (length 1) except for a space and `-' is ok."
3277 (save-excursion
3278 (set-buffer gnus-summary-buffer)
3279 ;; First of all, show hidden thread subtrees.
3280 (gnus-summary-show-thread)
3281 (let* ((buffer-read-only nil)
3282 (mark (or mark "D")) ;Default mark is `D'.
3283 (current (gnus-summary-article-number))
3284 (article (or article current)))
3285 (gnus-mark-article-as-read article)
3286 (if (or (eq article current)
3287 (gnus-summary-goto-subject article))
3288 (progn
3289 (beginning-of-line)
3290 (delete-char 1)
3291 (insert mark)))
3294 (defun gnus-summary-clear-mark-forward (count)
3295 "Remove current article's mark, and go forward.
3296 Argument COUNT specifies number of articles unmarked"
3297 (interactive "p")
3298 (while (> count 0)
3299 (gnus-summary-mark-as-unread nil t)
3300 (gnus-summary-next-subject 1 nil)
3301 (setq count (1- count))))
3303 (defun gnus-summary-clear-mark-backward (count)
3304 "Remove current article's mark, and go backward.
3305 Argument COUNT specifies number of articles unmarked"
3306 (interactive "p")
3307 (while (> count 0)
3308 (gnus-summary-mark-as-unread nil t)
3309 (gnus-summary-prev-subject 1 nil)
3310 (setq count (1- count))))
3312 (defun gnus-summary-delete-marked-as-read ()
3313 "Delete lines which is marked as read."
3314 (interactive)
3315 (if gnus-newsgroup-unreads
3316 (let ((buffer-read-only nil))
3317 (save-excursion
3318 (goto-char (point-min))
3319 (delete-non-matching-lines "^[ ---]"))
3320 ;; Adjust point.
3321 (if (eobp)
3322 (gnus-summary-prev-subject 1)
3323 (beginning-of-line)
3324 (search-forward ":" nil t)))
3325 ;; It is not so good idea to make the buffer empty.
3326 (message "All articles are marked as read")
3329 (defun gnus-summary-delete-marked-with (marks)
3330 "Delete lines which are marked with MARKS (e.g. \"DK\")."
3331 (interactive "sMarks: ")
3332 (let ((buffer-read-only nil))
3333 (save-excursion
3334 (goto-char (point-min))
3335 (delete-matching-lines (concat "^[" marks "]")))
3336 ;; Adjust point.
3337 (or (zerop (buffer-size))
3338 (if (eobp)
3339 (gnus-summary-prev-subject 1)
3340 (beginning-of-line)
3341 (search-forward ":" nil t)))
3344 ;; Thread-based commands.
3346 (defun gnus-summary-toggle-threads (arg)
3347 "Toggle showing conversation threads.
3348 With arg, turn showing conversation threads on iff arg is positive."
3349 (interactive "P")
3350 (let ((current (gnus-summary-article-number)))
3351 (setq gnus-show-threads
3352 (if (null arg) (not gnus-show-threads)
3353 (> (prefix-numeric-value arg) 0)))
3354 (gnus-summary-prepare)
3355 (gnus-summary-goto-subject current)
3358 (defun gnus-summary-show-all-threads ()
3359 "Show all thread subtrees."
3360 (interactive)
3361 (if gnus-show-threads
3362 (save-excursion
3363 (let ((buffer-read-only nil))
3364 (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)
3365 ))))
3367 (defun gnus-summary-show-thread ()
3368 "Show thread subtrees."
3369 (interactive)
3370 (if gnus-show-threads
3371 (save-excursion
3372 (let ((buffer-read-only nil))
3373 (subst-char-in-region (progn
3374 (beginning-of-line) (point))
3375 (progn
3376 (end-of-line) (point))
3377 ?\^M ?\n t)
3378 ))))
3380 (defun gnus-summary-hide-all-threads ()
3381 "Hide all thread subtrees."
3382 (interactive)
3383 (if gnus-show-threads
3384 (save-excursion
3385 ;; Adjust cursor point.
3386 (goto-char (point-min))
3387 (search-forward ":" nil t)
3388 (let ((level (current-column)))
3389 (gnus-summary-hide-thread)
3390 (while (gnus-summary-search-forward)
3391 (and (>= level (current-column))
3392 (gnus-summary-hide-thread)))
3393 ))))
3395 (defun gnus-summary-hide-thread ()
3396 "Hide thread subtrees."
3397 (interactive)
3398 (if gnus-show-threads
3399 (save-excursion
3400 ;; Adjust cursor point.
3401 (beginning-of-line)
3402 (search-forward ":" nil t)
3403 (let ((buffer-read-only nil)
3404 (init (point))
3405 (last (point))
3406 (level (current-column)))
3407 (while (and (gnus-summary-search-forward)
3408 (< level (current-column)))
3409 ;; Interested in lower levels.
3410 (if (< level (current-column))
3411 (progn
3412 (setq last (point))
3415 (subst-char-in-region init last ?\n ?\^M t)
3416 ))))
3418 (defun gnus-summary-next-thread (n)
3419 "Go to the same level next thread.
3420 Argument N specifies the number of threads."
3421 (interactive "p")
3422 ;; Adjust cursor point.
3423 (beginning-of-line)
3424 (search-forward ":" nil t)
3425 (let ((init (point))
3426 (last (point))
3427 (level (current-column)))
3428 (while (and (> n 0)
3429 (gnus-summary-search-forward)
3430 (<= level (current-column)))
3431 ;; We have to skip lower levels.
3432 (if (= level (current-column))
3433 (progn
3434 (setq last (point))
3435 (setq n (1- n))
3438 ;; Return non-nil if successfully move to the next.
3439 (prog1 (not (= init last))
3440 (goto-char last))
3443 (defun gnus-summary-prev-thread (n)
3444 "Go to the same level previous thread.
3445 Argument N specifies the number of threads."
3446 (interactive "p")
3447 ;; Adjust cursor point.
3448 (beginning-of-line)
3449 (search-forward ":" nil t)
3450 (let ((init (point))
3451 (last (point))
3452 (level (current-column)))
3453 (while (and (> n 0)
3454 (gnus-summary-search-backward)
3455 (<= level (current-column)))
3456 ;; We have to skip lower levels.
3457 (if (= level (current-column))
3458 (progn
3459 (setq last (point))
3460 (setq n (1- n))
3463 ;; Return non-nil if successfully move to the previous.
3464 (prog1 (not (= init last))
3465 (goto-char last))
3468 (defun gnus-summary-down-thread (d)
3469 "Go downward current thread.
3470 Argument D specifies the depth goes down."
3471 (interactive "p")
3472 ;; Adjust cursor point.
3473 (beginning-of-line)
3474 (search-forward ":" nil t)
3475 (let ((last (point))
3476 (level (current-column)))
3477 (while (and (> d 0)
3478 (gnus-summary-search-forward)
3479 (<= level (current-column))) ;<= can be <. Which do you like?
3480 ;; We have to skip the same levels.
3481 (if (< level (current-column))
3482 (progn
3483 (setq last (point))
3484 (setq level (current-column))
3485 (setq d (1- d))
3488 (goto-char last)
3491 (defun gnus-summary-up-thread (d)
3492 "Go upward current thread.
3493 Argument D specifies the depth goes up."
3494 (interactive "p")
3495 ;; Adjust cursor point.
3496 (beginning-of-line)
3497 (search-forward ":" nil t)
3498 (let ((last (point))
3499 (level (current-column)))
3500 (while (and (> d 0)
3501 (gnus-summary-search-backward))
3502 ;; We have to skip the same levels.
3503 (if (> level (current-column))
3504 (progn
3505 (setq last (point))
3506 (setq level (current-column))
3507 (setq d (1- d))
3510 (goto-char last)
3513 (defun gnus-summary-kill-thread (unmark)
3514 "Mark articles under current thread as read.
3515 If argument UNMARK is positive, remove any kinds of marks.
3516 If argument UNMARK is negative, mark articles as unread instead."
3517 (interactive "P")
3518 (if unmark
3519 (setq unmark (prefix-numeric-value unmark)))
3520 ;; Adjust cursor point.
3521 (beginning-of-line)
3522 (search-forward ":" nil t)
3523 (save-excursion
3524 (let ((level (current-column)))
3525 ;; Mark current article.
3526 (cond ((null unmark)
3527 (gnus-summary-mark-as-read nil "K"))
3528 ((> unmark 0)
3529 (gnus-summary-mark-as-unread nil t))
3531 (gnus-summary-mark-as-unread))
3533 ;; Mark following articles.
3534 (while (and (gnus-summary-search-forward)
3535 (< level (current-column)))
3536 (cond ((null unmark)
3537 (gnus-summary-mark-as-read nil "K"))
3538 ((> unmark 0)
3539 (gnus-summary-mark-as-unread nil t))
3541 (gnus-summary-mark-as-unread))
3544 ;; Hide killed subtrees.
3545 (and (null unmark)
3546 gnus-thread-hide-killed
3547 (gnus-summary-hide-thread))
3548 ;; If marked as read, go to next unread subject.
3549 (if (null unmark)
3550 ;; Go to next unread subject.
3551 (gnus-summary-next-subject 1 t))
3554 (defun gnus-summary-toggle-truncation (arg)
3555 "Toggle truncation of summary lines.
3556 With arg, turn line truncation on iff arg is positive."
3557 (interactive "P")
3558 (setq truncate-lines
3559 (if (null arg) (not truncate-lines)
3560 (> (prefix-numeric-value arg) 0)))
3561 (redraw-display))
3563 (defun gnus-summary-sort-by-number (reverse)
3564 "Sort Summary buffer by article number.
3565 Argument REVERSE means reverse order."
3566 (interactive "P")
3567 (gnus-summary-keysort-summary
3568 (function <)
3569 (function
3570 (lambda (a)
3571 (nntp-header-number a)))
3572 reverse
3575 (defun gnus-summary-sort-by-author (reverse)
3576 "Sort Summary buffer by author name alphabetically.
3577 If case-fold-search is non-nil, case of letters is ignored.
3578 Argument REVERSE means reverse order."
3579 (interactive "P")
3580 (gnus-summary-keysort-summary
3581 (function string-lessp)
3582 (function
3583 (lambda (a)
3584 (if case-fold-search
3585 (downcase (nntp-header-from a))
3586 (nntp-header-from a))))
3587 reverse
3590 (defun gnus-summary-sort-by-subject (reverse)
3591 "Sort Summary buffer by subject alphabetically. `Re:'s are ignored.
3592 If case-fold-search is non-nil, case of letters is ignored.
3593 Argument REVERSE means reverse order."
3594 (interactive "P")
3595 (gnus-summary-keysort-summary
3596 (function string-lessp)
3597 (function
3598 (lambda (a)
3599 (if case-fold-search
3600 (downcase (gnus-simplify-subject (nntp-header-subject a) 're-only))
3601 (gnus-simplify-subject (nntp-header-subject a) 're-only))))
3602 reverse
3605 (defun gnus-summary-sort-by-date (reverse)
3606 "Sort Summary buffer by date.
3607 Argument REVERSE means reverse order."
3608 (interactive "P")
3609 (gnus-summary-keysort-summary
3610 (function string-lessp)
3611 (function
3612 (lambda (a)
3613 (gnus-sortable-date (nntp-header-date a))))
3614 reverse
3617 (defun gnus-summary-keysort-summary (predicate key &optional reverse)
3618 "Sort Summary buffer by PREDICATE using a value passed by KEY.
3619 Optional argument REVERSE means reverse order."
3620 (let ((current (gnus-summary-article-number)))
3621 (gnus-keysort-headers predicate key reverse)
3622 (gnus-summary-prepare)
3623 (gnus-summary-goto-subject current)
3626 (defun gnus-summary-sort-summary (predicate &optional reverse)
3627 "Sort Summary buffer by PREDICATE.
3628 Optional argument REVERSE means reverse order."
3629 (let ((current (gnus-summary-article-number)))
3630 (gnus-sort-headers predicate reverse)
3631 (gnus-summary-prepare)
3632 (gnus-summary-goto-subject current)
3635 (defun gnus-summary-reselect-current-group (show-all)
3636 "Once exit and then reselect the current newsgroup.
3637 Prefix argument SHOW-ALL means to select all articles."
3638 (interactive "P")
3639 (let ((current-subject (gnus-summary-article-number)))
3640 (gnus-summary-exit t)
3641 ;; We have to adjust the point of Group mode buffer because the
3642 ;; current point was moved to the next unread newsgroup by
3643 ;; exiting.
3644 (gnus-summary-jump-to-group gnus-newsgroup-name)
3645 (gnus-group-read-group show-all t)
3646 (gnus-summary-goto-subject current-subject)
3649 (defun gnus-summary-caesar-message (rotnum)
3650 "Caesar rotates all letters of current message by 13/47 places.
3651 With prefix arg, specifies the number of places to rotate each letter forward.
3652 Caesar rotates Japanese letters by 47 places in any case."
3653 (interactive "P")
3654 (gnus-summary-select-article)
3655 (gnus-overload-functions)
3656 (gnus-eval-in-buffer-window gnus-article-buffer
3657 (save-restriction
3658 (widen)
3659 ;; We don't want to jump to the beginning of the message.
3660 ;; `save-excursion' does not do its job.
3661 (move-to-window-line 0)
3662 (let ((last (point)))
3663 (news-caesar-buffer-body rotnum)
3664 (goto-char last)
3665 (recenter 0)
3669 (defun gnus-summary-rmail-digest ()
3670 "Run RMAIL on current digest article.
3671 gnus-select-digest-hook will be called with no arguments, if that
3672 value is non-nil. It is possible to modify the article so that Rmail
3673 can work with it.
3674 gnus-rmail-digest-hook will be called with no arguments, if that value
3675 is non-nil. The hook is intended to customize Rmail mode."
3676 (interactive)
3677 (gnus-summary-select-article)
3678 (require 'rmail)
3679 (let ((artbuf gnus-article-buffer)
3680 (digbuf (get-buffer-create gnus-digest-buffer))
3681 (mail-header-separator ""))
3682 (set-buffer digbuf)
3683 (buffer-flush-undo (current-buffer))
3684 (setq buffer-read-only nil)
3685 (erase-buffer)
3686 (insert-buffer-substring artbuf)
3687 (run-hooks 'gnus-select-digest-hook)
3688 (gnus-convert-article-to-rmail)
3689 (goto-char (point-min))
3690 ;; Rmail initializations.
3691 (rmail-insert-rmail-file-header)
3692 (rmail-mode)
3693 (rmail-set-message-counters)
3694 (rmail-show-message)
3695 (condition-case ()
3696 (progn
3697 (undigestify-rmail-message)
3698 (rmail-expunge) ;Delete original message.
3699 ;; File name is meaningless but `save-buffer' requires it.
3700 (setq buffer-file-name "GNUS Digest")
3701 (setq mode-line-buffer-identification
3702 (concat "Digest: "
3703 (nntp-header-subject gnus-current-headers)))
3704 ;; There is no need to write this buffer to a file.
3705 (make-local-variable 'write-file-hooks)
3706 (setq write-file-hooks
3707 (list (function
3708 (lambda ()
3709 (set-buffer-modified-p nil)
3710 (message "(No changes need to be saved)")
3711 'no-need-to-write-this-buffer))))
3712 ;; Default file name saving digest messages.
3713 (setq rmail-last-rmail-file
3714 (funcall gnus-rmail-save-name
3715 gnus-newsgroup-name
3716 gnus-current-headers
3717 gnus-newsgroup-last-rmail
3719 (setq rmail-last-file
3720 (funcall gnus-mail-save-name
3721 gnus-newsgroup-name
3722 gnus-current-headers
3723 gnus-newsgroup-last-mail
3725 ;; Prevent generating new buffer named ***<N> each time.
3726 (setq rmail-summary-buffer
3727 (get-buffer-create gnus-digest-summary-buffer))
3728 (run-hooks 'gnus-rmail-digest-hook)
3729 ;; Take all windows safely.
3730 (gnus-configure-windows '(1 0 0))
3731 (pop-to-buffer gnus-group-buffer)
3732 ;; Use Summary Article windows for Digest summary and
3733 ;; Digest buffers.
3734 (if gnus-digest-show-summary
3735 (let ((gnus-summary-buffer gnus-digest-summary-buffer)
3736 (gnus-article-buffer gnus-digest-buffer))
3737 (gnus-configure-windows 'article)
3738 (pop-to-buffer gnus-digest-buffer)
3739 (rmail-summary)
3740 (pop-to-buffer gnus-digest-summary-buffer)
3741 (message (substitute-command-keys
3742 "Type \\[rmail-summary-quit] to return to GNUS")))
3743 (let ((gnus-summary-buffer gnus-digest-buffer))
3744 (gnus-configure-windows 'summary)
3745 (pop-to-buffer gnus-digest-buffer)
3746 (message (substitute-command-keys
3747 "Type \\[rmail-quit] to return to GNUS")))
3749 ;; Move the buffers to the end of buffer list.
3750 (bury-buffer gnus-article-buffer)
3751 (bury-buffer gnus-group-buffer)
3752 (bury-buffer gnus-digest-summary-buffer)
3753 (bury-buffer gnus-digest-buffer))
3754 (error (set-buffer-modified-p nil)
3755 (kill-buffer digbuf)
3756 ;; This command should not signal an error because the
3757 ;; command is called from hooks.
3758 (ding) (message "Article is not a digest")))
3761 (defun gnus-summary-save-article ()
3762 "Save this article using default saver function.
3763 The variable `gnus-default-article-saver' specifies the saver function."
3764 (interactive)
3765 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3766 (if gnus-default-article-saver
3767 (call-interactively gnus-default-article-saver)
3768 (error "No default saver is defined.")))
3770 (defun gnus-summary-save-in-rmail (&optional filename)
3771 "Append this article to Rmail file.
3772 Optional argument FILENAME specifies file name.
3773 Directory to save to is default to `gnus-article-save-directory' which
3774 is initialized from the SAVEDIR environment variable."
3775 (interactive)
3776 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3777 (gnus-eval-in-buffer-window gnus-article-buffer
3778 (save-excursion
3779 (save-restriction
3780 (widen)
3781 (let ((default-name
3782 (funcall gnus-rmail-save-name
3783 gnus-newsgroup-name
3784 gnus-current-headers
3785 gnus-newsgroup-last-rmail
3787 (or filename
3788 (setq filename
3789 (read-file-name
3790 (concat "Save article in Rmail file: (default "
3791 (file-name-nondirectory default-name)
3792 ") ")
3793 (file-name-directory default-name)
3794 default-name)))
3795 (gnus-make-directory (file-name-directory filename))
3796 (gnus-output-to-rmail filename)
3797 ;; Remember the directory name to save articles.
3798 (setq gnus-newsgroup-last-rmail filename)
3802 (defun gnus-summary-save-in-mail (&optional filename)
3803 "Append this article to Unix mail file.
3804 Optional argument FILENAME specifies file name.
3805 Directory to save to is default to `gnus-article-save-directory' which
3806 is initialized from the SAVEDIR environment variable."
3807 (interactive)
3808 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3809 (gnus-eval-in-buffer-window gnus-article-buffer
3810 (save-excursion
3811 (save-restriction
3812 (widen)
3813 (let ((default-name
3814 (funcall gnus-mail-save-name
3815 gnus-newsgroup-name
3816 gnus-current-headers
3817 gnus-newsgroup-last-mail
3819 (or filename
3820 (setq filename
3821 (read-file-name
3822 (concat "Save article in Unix mail file: (default "
3823 (file-name-nondirectory default-name)
3824 ") ")
3825 (file-name-directory default-name)
3826 default-name)))
3827 (gnus-make-directory (file-name-directory filename))
3828 (rmail-output filename)
3829 ;; Remember the directory name to save articles.
3830 (setq gnus-newsgroup-last-mail filename)
3834 (defun gnus-summary-save-in-file (&optional filename)
3835 "Append this article to file.
3836 Optional argument FILENAME specifies file name.
3837 Directory to save to is default to `gnus-article-save-directory' which
3838 is initialized from the SAVEDIR environment variable."
3839 (interactive)
3840 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3841 (gnus-eval-in-buffer-window gnus-article-buffer
3842 (save-excursion
3843 (save-restriction
3844 (widen)
3845 (let ((default-name
3846 (funcall gnus-file-save-name
3847 gnus-newsgroup-name
3848 gnus-current-headers
3849 gnus-newsgroup-last-file
3851 (or filename
3852 (setq filename
3853 (read-file-name
3854 (concat "Save article in file: (default "
3855 (file-name-nondirectory default-name)
3856 ") ")
3857 (file-name-directory default-name)
3858 default-name)))
3859 (gnus-make-directory (file-name-directory filename))
3860 (gnus-output-to-file filename)
3861 ;; Remember the directory name to save articles.
3862 (setq gnus-newsgroup-last-file filename)
3866 (defun gnus-summary-save-in-folder (&optional folder)
3867 "Save this article to MH folder (using `rcvstore' in MH library).
3868 Optional argument FOLDER specifies folder name."
3869 (interactive)
3870 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3871 (gnus-eval-in-buffer-window gnus-article-buffer
3872 (save-restriction
3873 (widen)
3874 ;; Thanks to yuki@flab.Fujitsu.JUNET and ohm@kaba.junet.
3875 (mh-find-path)
3876 (let ((folder
3877 (or folder
3878 (mh-prompt-for-folder "Save article in"
3879 (funcall gnus-folder-save-name
3880 gnus-newsgroup-name
3881 gnus-current-headers
3882 gnus-newsgroup-last-folder
3886 (errbuf (get-buffer-create " *GNUS rcvstore*")))
3887 (unwind-protect
3888 (call-process-region (point-min) (point-max)
3889 (expand-file-name "rcvstore" mh-lib)
3890 nil errbuf nil folder)
3891 (set-buffer errbuf)
3892 (if (zerop (buffer-size))
3893 (message "Article saved in folder: %s" folder)
3894 (message "%s" (buffer-string)))
3895 (kill-buffer errbuf)
3896 (setq gnus-newsgroup-last-folder folder))
3900 (defun gnus-summary-pipe-output ()
3901 "Pipe this article to subprocess."
3902 (interactive)
3903 ;; Ignore `gnus-save-all-headers' since this is not save command.
3904 ;;(gnus-summary-select-article)
3905 ;; Huuum. Is this right?
3906 (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
3907 (gnus-eval-in-buffer-window gnus-article-buffer
3908 (save-restriction
3909 (widen)
3910 (let ((command (read-string "Shell command on article: "
3911 gnus-last-shell-command)))
3912 (if (string-equal command "")
3913 (setq command gnus-last-shell-command))
3914 (shell-command-on-region (point-min) (point-max) command nil)
3915 (setq gnus-last-shell-command command)
3919 (defun gnus-summary-catchup (all &optional quietly)
3920 "Mark all articles not marked as unread in this newsgroup as read.
3921 If prefix argument ALL is non-nil, all articles are marked as read."
3922 (interactive "P")
3923 (if (or quietly
3924 (y-or-n-p
3925 (if all
3926 "Do you really want to mark everything as read? "
3927 "Delete all articles not marked as unread? ")))
3928 (let ((unmarked
3929 (gnus-set-difference gnus-newsgroup-unreads
3930 (if (not all) gnus-newsgroup-marked))))
3931 (message "") ;Erase "Yes or No" question.
3932 ;; Hidden thread subtrees must be searched for ,too.
3933 (gnus-summary-show-all-threads)
3934 (while unmarked
3935 (gnus-summary-mark-as-read (car unmarked) "C")
3936 (setq unmarked (cdr unmarked))
3940 (defun gnus-summary-catchup-all (&optional quietly)
3941 "Mark all articles in this newsgroup as read."
3942 (interactive)
3943 (gnus-summary-catchup t quietly))
3945 (defun gnus-summary-catchup-and-exit (all &optional quietly)
3946 "Mark all articles not marked as unread in this newsgroup as read, then exit.
3947 If prefix argument ALL is non-nil, all articles are marked as read."
3948 (interactive "P")
3949 (if (or quietly
3950 (y-or-n-p
3951 (if all
3952 "Do you really want to mark everything as read? "
3953 "Delete all articles not marked as unread? ")))
3954 (let ((unmarked
3955 (gnus-set-difference gnus-newsgroup-unreads
3956 (if (not all) gnus-newsgroup-marked))))
3957 (message "") ;Erase "Yes or No" question.
3958 (while unmarked
3959 (gnus-mark-article-as-read (car unmarked))
3960 (setq unmarked (cdr unmarked)))
3961 ;; Select next newsgroup or exit.
3962 (cond ((eq gnus-auto-select-next 'quietly)
3963 ;; Select next newsgroup quietly.
3964 (gnus-summary-next-group nil))
3966 (gnus-summary-exit)))
3969 (defun gnus-summary-catchup-all-and-exit (&optional quietly)
3970 "Mark all articles in this newsgroup as read, and then exit."
3971 (interactive)
3972 (gnus-summary-catchup-and-exit t quietly))
3974 (defun gnus-summary-edit-global-kill ()
3975 "Edit a global KILL file."
3976 (interactive)
3977 (setq gnus-current-kill-article (gnus-summary-article-number))
3978 (gnus-kill-file-edit-file nil) ;Nil stands for global KILL file.
3979 (message
3980 (substitute-command-keys
3981 "Editing a global KILL file (Type \\[gnus-kill-file-exit] to exit)")))
3983 (defun gnus-summary-edit-local-kill ()
3984 "Edit a local KILL file applied to the current newsgroup."
3985 (interactive)
3986 (setq gnus-current-kill-article (gnus-summary-article-number))
3987 (gnus-kill-file-edit-file gnus-newsgroup-name)
3988 (message
3989 (substitute-command-keys
3990 "Editing a local KILL file (Type \\[gnus-kill-file-exit] to exit)")))
3992 (defun gnus-summary-exit (&optional temporary)
3993 "Exit reading current newsgroup, and then return to group selection mode.
3994 gnus-exit-group-hook is called with no arguments if that value is non-nil."
3995 (interactive)
3996 (let ((updated nil)
3997 (gnus-newsgroup-headers gnus-newsgroup-headers)
3998 (gnus-newsgroup-unreads gnus-newsgroup-unreads)
3999 (gnus-newsgroup-unselected gnus-newsgroup-unselected)
4000 (gnus-newsgroup-marked gnus-newsgroup-marked))
4001 ;; Important internal variables are saved, so we can reenter
4002 ;; Summary buffer even if hook changes them.
4003 (run-hooks 'gnus-exit-group-hook)
4004 (gnus-update-unread-articles gnus-newsgroup-name
4005 (append gnus-newsgroup-unselected
4006 gnus-newsgroup-unreads)
4007 gnus-newsgroup-marked)
4008 ;; T means ignore unsubscribed newsgroups.
4009 (if gnus-use-cross-reference
4010 (setq updated
4011 (gnus-mark-as-read-by-xref gnus-newsgroup-name
4012 gnus-newsgroup-headers
4013 gnus-newsgroup-unreads
4014 (eq gnus-use-cross-reference t)
4016 ;; Do not switch windows but change the buffer to work.
4017 (set-buffer gnus-group-buffer)
4018 ;; Update cross referenced group info.
4019 (while updated
4020 (gnus-group-update-group (car updated) t) ;Ignore invisible group.
4021 (setq updated (cdr updated)))
4022 (gnus-group-update-group gnus-newsgroup-name))
4023 ;; Make sure where I was, and go to next newsgroup.
4024 (gnus-group-jump-to-group gnus-newsgroup-name)
4025 (gnus-group-next-unread-group 1)
4026 (if temporary
4027 ;; If exiting temporary, caller should adjust Group mode
4028 ;; buffer point by itself.
4029 nil ;Nothing to do.
4030 ;; Return to Group mode buffer.
4031 (if (get-buffer gnus-summary-buffer)
4032 (bury-buffer gnus-summary-buffer))
4033 (if (get-buffer gnus-article-buffer)
4034 (bury-buffer gnus-article-buffer))
4035 (gnus-configure-windows 'newsgroups)
4036 (pop-to-buffer gnus-group-buffer)))
4038 (defun gnus-summary-quit ()
4039 "Quit reading current newsgroup without updating read article info."
4040 (interactive)
4041 (if (y-or-n-p "Do you really wanna quit reading this group? ")
4042 (progn
4043 (message "") ;Erase "Yes or No" question.
4044 ;; Return to Group selection mode.
4045 (if (get-buffer gnus-summary-buffer)
4046 (bury-buffer gnus-summary-buffer))
4047 (if (get-buffer gnus-article-buffer)
4048 (bury-buffer gnus-article-buffer))
4049 (gnus-configure-windows 'newsgroups)
4050 (pop-to-buffer gnus-group-buffer)
4051 (gnus-group-jump-to-group gnus-newsgroup-name) ;Make sure where I was.
4052 (gnus-group-next-group 1) ;(gnus-group-next-unread-group 1)
4055 (defun gnus-summary-describe-briefly ()
4056 "Describe Summary mode commands briefly."
4057 (interactive)
4058 (message
4059 (concat
4060 (substitute-command-keys "\\[gnus-summary-next-page]:Select ")
4061 (substitute-command-keys "\\[gnus-summary-next-unread-article]:Forward ")
4062 (substitute-command-keys "\\[gnus-summary-prev-unread-article]:Backward ")
4063 (substitute-command-keys "\\[gnus-summary-exit]:Exit ")
4064 (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
4065 (substitute-command-keys "\\[gnus-summary-describe-briefly]:This help")
4070 ;;; GNUS Article Mode
4073 (if gnus-article-mode-map
4075 (setq gnus-article-mode-map (make-keymap))
4076 (suppress-keymap gnus-article-mode-map)
4077 (define-key gnus-article-mode-map " " 'gnus-article-next-page)
4078 (define-key gnus-article-mode-map "\177" 'gnus-article-prev-page)
4079 (define-key gnus-article-mode-map "r" 'gnus-article-refer-article)
4080 (define-key gnus-article-mode-map "o" 'gnus-article-pop-article)
4081 (define-key gnus-article-mode-map "h" 'gnus-article-show-summary)
4082 (define-key gnus-article-mode-map "s" 'gnus-article-show-summary)
4083 (define-key gnus-article-mode-map "?" 'gnus-article-describe-briefly)
4084 (define-key gnus-article-mode-map "\C-c\C-i" 'gnus-info-find-node))
4086 (defun gnus-article-mode ()
4087 "Major mode for browsing through an article.
4088 All normal editing commands are turned off.
4089 Instead, these commands are available:
4090 \\{gnus-article-mode-map}
4092 Various hooks for customization:
4093 gnus-article-mode-hook
4094 Entry to this mode calls the value with no arguments, if that
4095 value is non-nil.
4097 gnus-article-prepare-hook
4098 Called with no arguments after an article is prepared for reading,
4099 if that value is non-nil."
4100 (interactive)
4101 (kill-all-local-variables)
4102 ;; Gee. Why don't you upgrade?
4103 (cond ((boundp 'mode-line-modified)
4104 (setq mode-line-modified "--- "))
4105 ((listp (default-value 'mode-line-format))
4106 (setq mode-line-format
4107 (cons "--- " (cdr (default-value 'mode-line-format))))))
4108 ;; To disable display-time facility.
4109 ;;(make-local-variable 'global-mode-string)
4110 ;;(setq global-mode-string nil)
4111 (setq major-mode 'gnus-article-mode)
4112 (setq mode-name "Article")
4113 (make-local-variable 'minor-mode-alist)
4114 (or (assq 'gnus-show-mime minor-mode-alist)
4115 (setq minor-mode-alist
4116 (cons (list 'gnus-show-mime " MIME") minor-mode-alist)))
4117 (gnus-article-set-mode-line)
4118 (use-local-map gnus-article-mode-map)
4119 (make-local-variable 'page-delimiter)
4120 (setq page-delimiter gnus-page-delimiter)
4121 (make-local-variable 'mail-header-separator)
4122 (setq mail-header-separator "") ;For caesar function.
4123 (buffer-flush-undo (current-buffer))
4124 (setq buffer-read-only t) ;Disable modification
4125 (run-hooks 'gnus-article-mode-hook))
4127 (defun gnus-article-setup-buffer ()
4128 "Initialize Article mode buffer."
4129 (or (get-buffer gnus-article-buffer)
4130 (save-excursion
4131 (set-buffer (get-buffer-create gnus-article-buffer))
4132 (gnus-article-mode))
4135 (defun gnus-article-prepare (article &optional all-headers)
4136 "Prepare ARTICLE in Article mode buffer.
4137 ARTICLE can be either a article number or Message-ID.
4138 If optional argument ALL-HEADERS is non-nil, all headers are inserted."
4139 ;; Make sure a connection to NNTP server is alive.
4140 (if (not (gnus-server-opened))
4141 (progn
4142 (gnus-start-news-server)
4143 (gnus-request-group gnus-newsgroup-name)))
4144 (save-excursion
4145 (set-buffer gnus-article-buffer)
4146 (let ((buffer-read-only nil))
4147 (erase-buffer)
4148 ;; mhspool does not work with Message-ID. So, let's translate
4149 ;; it into an article number as possible as can. This may help
4150 ;; nnspool too.
4151 ;; Note: this conversion must be done here since if the article
4152 ;; is specified by number or message-id has a different meaning
4153 ;; in the following.
4154 (if (let* ((header
4155 (and (stringp article)
4156 (gnus-get-header-by-id article)))
4157 (article
4158 (if header
4159 (nntp-header-number header) article)))
4160 (gnus-request-article article))
4161 (progn
4162 ;; Prepare article buffer
4163 (insert-buffer-substring nntp-server-buffer)
4164 ;; gnus-have-all-headers must be either T or NIL.
4165 (setq gnus-have-all-headers
4166 (not (not (or all-headers gnus-show-all-headers))))
4167 (if (and (numberp article)
4168 (not (eq article gnus-current-article)))
4169 ;; Seems me that a new article has been selected.
4170 (progn
4171 ;; gnus-current-article must be an article number.
4172 (setq gnus-last-article gnus-current-article)
4173 (setq gnus-current-article article)
4174 ;; (setq gnus-current-headers
4175 ;; (gnus-find-header-by-number gnus-newsgroup-headers
4176 ;; gnus-current-article))
4177 (setq gnus-current-headers
4178 (gnus-get-header-by-number gnus-current-article))
4179 (run-hooks 'gnus-mark-article-hook)
4181 ;; Clear article history only when the article is
4182 ;; retrieved by the article number.
4183 (if (numberp article)
4184 (setq gnus-current-history nil))
4185 ;; Hooks for modifying contents of the article. This hook
4186 ;; must be called before being narrowed.
4187 (run-hooks 'gnus-article-prepare-hook)
4188 ;; Decode MIME message.
4189 (if (and gnus-show-mime
4190 (gnus-fetch-field "Mime-Version"))
4191 (funcall gnus-show-mime-method))
4192 ;; Delete unnecessary headers.
4193 (or gnus-have-all-headers
4194 (gnus-article-delete-headers))
4195 ;; Do page break.
4196 (goto-char (point-min))
4197 (if gnus-break-pages
4198 (gnus-narrow-to-page))
4199 ;; Next function must be called after setting
4200 ;; `gnus-current-article' variable and narrowed to page.
4201 (gnus-article-set-mode-line)
4203 ;; There is no such article.
4204 (if (numberp article)
4205 (gnus-summary-mark-as-read article))
4206 (ding) (message "No such article (may be canceled)"))
4209 (defun gnus-article-show-all-headers ()
4210 "Show all article headers in Article mode buffer."
4211 (or gnus-have-all-headers
4212 (gnus-article-prepare gnus-current-article t)))
4214 ;;(defun gnus-article-set-mode-line ()
4215 ;; "Set Article mode line string."
4216 ;; (setq mode-line-buffer-identification
4217 ;; (list 17
4218 ;; (format "GNUS: %s {%d-%d} %d"
4219 ;; gnus-newsgroup-name
4220 ;; gnus-newsgroup-begin
4221 ;; gnus-newsgroup-end
4222 ;; gnus-current-article
4223 ;; )))
4224 ;; (set-buffer-modified-p t))
4226 ;;(defun gnus-article-set-mode-line ()
4227 ;; "Set Article mode line string."
4228 ;; (let ((unmarked
4229 ;; (- (length gnus-newsgroup-unreads)
4230 ;; (length (gnus-intersection
4231 ;; gnus-newsgroup-unreads gnus-newsgroup-marked))))
4232 ;; (unselected
4233 ;; (- (length gnus-newsgroup-unselected)
4234 ;; (length (gnus-intersection
4235 ;; gnus-newsgroup-unselected gnus-newsgroup-marked)))))
4236 ;; (setq mode-line-buffer-identification
4237 ;; (list 17
4238 ;; (format "GNUS: %s{%d} %s"
4239 ;; gnus-newsgroup-name
4240 ;; gnus-current-article
4241 ;; ;; This is proposed by tale@pawl.rpi.edu.
4242 ;; (cond ((and (zerop unmarked)
4243 ;; (zerop unselected))
4244 ;; " ")
4245 ;; ((zerop unselected)
4246 ;; (format "%d more" unmarked))
4247 ;; (t
4248 ;; (format "%d(+%d) more" unmarked unselected)))
4249 ;; ))))
4250 ;; (set-buffer-modified-p t))
4252 ;; New implementation in gnus 3.14.3
4254 (defun gnus-article-set-mode-line ()
4255 "Set Article mode line string.
4256 If you don't like it, define your own gnus-article-set-mode-line."
4257 (let ((maxlen 15) ;Maximum subject length
4258 (subject
4259 (if gnus-current-headers
4260 (nntp-header-subject gnus-current-headers) "")))
4261 ;; The value must be a string to escape %-constructs because of subject.
4262 (setq mode-line-buffer-identification
4263 (format "GNUS: %s%s %s%s%s"
4264 gnus-newsgroup-name
4265 (if gnus-current-article
4266 (format "/%d" gnus-current-article) "")
4267 (substring subject 0 (min (length subject) maxlen))
4268 (if (> (length subject) maxlen) "..." "")
4269 (make-string (max 0 (- 17 (length subject))) ? )
4271 (set-buffer-modified-p t))
4273 (defun gnus-article-delete-headers ()
4274 "Delete unnecessary headers."
4275 (save-excursion
4276 (save-restriction
4277 (goto-char (point-min))
4278 (narrow-to-region (point-min)
4279 (progn (search-forward "\n\n" nil 'move) (point)))
4280 (goto-char (point-min))
4281 (and (stringp gnus-ignored-headers)
4282 (while (re-search-forward gnus-ignored-headers nil t)
4283 (beginning-of-line)
4284 (delete-region (point)
4285 (progn (re-search-forward "\n[^ \t]")
4286 (forward-char -1)
4287 (point)))))
4290 ;; Working on article's buffer
4292 (defun gnus-article-next-page (lines)
4293 "Show next page of current article.
4294 If end of article, return non-nil. Otherwise return nil.
4295 Argument LINES specifies lines to be scrolled up."
4296 (interactive "P")
4297 (move-to-window-line -1)
4298 ;; Fixed by enami@ptgd.sony.co.jp (enami tsugutomo)
4299 (if (save-excursion
4300 (end-of-line)
4301 (and (pos-visible-in-window-p) ;Not continuation line.
4302 (eobp)))
4303 ;; Nothing in this page.
4304 (if (or (not gnus-break-pages)
4305 (save-excursion
4306 (save-restriction
4307 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
4308 t ;Nothing more.
4309 (gnus-narrow-to-page 1) ;Go to next page.
4312 ;; More in this page.
4313 (condition-case ()
4314 (scroll-up lines)
4315 (end-of-buffer
4316 ;; Long lines may cause an end-of-buffer error.
4317 (goto-char (point-max))))
4321 (defun gnus-article-prev-page (lines)
4322 "Show previous page of current article.
4323 Argument LINES specifies lines to be scrolled down."
4324 (interactive "P")
4325 (move-to-window-line 0)
4326 (if (and gnus-break-pages
4327 (bobp)
4328 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
4329 (progn
4330 (gnus-narrow-to-page -1) ;Go to previous page.
4331 (goto-char (point-max))
4332 (recenter -1))
4333 (scroll-down lines)))
4335 (defun gnus-article-next-digest (nth)
4336 "Move to head of NTH next digested message.
4337 Set mark at end of digested message."
4338 ;; Stop page breaking in digest mode.
4339 (widen)
4340 (end-of-line)
4341 ;; Skip NTH - 1 digest.
4342 ;; Suggested by Khalid Sattar <admin@cs.exeter.ac.uk>.
4343 ;; Digest separator is customizable.
4344 ;; Suggested by Skip Montanaro <montanaro@sprite.crd.ge.com>.
4345 (while (and (> nth 1)
4346 (re-search-forward gnus-digest-separator nil 'move))
4347 (setq nth (1- nth)))
4348 (if (re-search-forward gnus-digest-separator nil t)
4349 (let ((begin (point)))
4350 ;; Search for end of this message.
4351 (end-of-line)
4352 (if (re-search-forward gnus-digest-separator nil t)
4353 (progn
4354 (search-backward "\n\n") ;This may be incorrect.
4355 (forward-line 1))
4356 (goto-char (point-max)))
4357 (push-mark) ;Set mark at end of digested message.
4358 (goto-char begin)
4359 (beginning-of-line)
4360 ;; Show From: and Subject: fields.
4361 (recenter 1))
4362 (message "End of message")
4365 (defun gnus-article-prev-digest (nth)
4366 "Move to head of NTH previous digested message."
4367 ;; Stop page breaking in digest mode.
4368 (widen)
4369 (beginning-of-line)
4370 ;; Skip NTH - 1 digest.
4371 ;; Suggested by Khalid Sattar <admin@cs.exeter.ac.uk>.
4372 ;; Digest separator is customizable.
4373 ;; Suggested by Skip Montanaro <montanaro@sprite.crd.ge.com>.
4374 (while (and (> nth 1)
4375 (re-search-backward gnus-digest-separator nil 'move))
4376 (setq nth (1- nth)))
4377 (if (re-search-backward gnus-digest-separator nil t)
4378 (let ((begin (point)))
4379 ;; Search for end of this message.
4380 (end-of-line)
4381 (if (re-search-forward gnus-digest-separator nil t)
4382 (progn
4383 (search-backward "\n\n") ;This may be incorrect.
4384 (forward-line 1))
4385 (goto-char (point-max)))
4386 (push-mark) ;Set mark at end of digested message.
4387 (goto-char begin)
4388 ;; Show From: and Subject: fields.
4389 (recenter 1))
4390 (goto-char (point-min))
4391 (message "Top of message")
4394 (defun gnus-article-refer-article ()
4395 "Read article specified by message-id around point."
4396 (interactive)
4397 (save-window-excursion
4398 (save-excursion
4399 (re-search-forward ">" nil t) ;Move point to end of "<....>".
4400 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
4401 (let ((message-id
4402 (buffer-substring (match-beginning 1) (match-end 1))))
4403 (set-buffer gnus-summary-buffer)
4404 (gnus-summary-refer-article message-id))
4405 (error "No references around point"))
4408 (defun gnus-article-pop-article ()
4409 "Pop up article history."
4410 (interactive)
4411 (save-window-excursion
4412 (set-buffer gnus-summary-buffer)
4413 (gnus-summary-refer-article nil)))
4415 (defun gnus-article-show-summary ()
4416 "Reconfigure windows to show Summary buffer."
4417 (interactive)
4418 (gnus-configure-windows 'article)
4419 (pop-to-buffer gnus-summary-buffer)
4420 (gnus-summary-goto-subject gnus-current-article))
4422 (defun gnus-article-describe-briefly ()
4423 "Describe Article mode commands briefly."
4424 (interactive)
4425 (message
4426 (concat
4427 (substitute-command-keys "\\[gnus-article-next-page]:Next page ")
4428 (substitute-command-keys "\\[gnus-article-prev-page]:Prev page ")
4429 (substitute-command-keys "\\[gnus-article-show-summary]:Show Summary ")
4430 (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
4431 (substitute-command-keys "\\[gnus-article-describe-briefly]:This help")
4436 ;;; GNUS KILL-File Mode
4439 (if gnus-kill-file-mode-map
4441 (setq gnus-kill-file-mode-map (copy-keymap emacs-lisp-mode-map))
4442 (define-key gnus-kill-file-mode-map "\C-c\C-k\C-s" 'gnus-kill-file-kill-by-subject)
4443 (define-key gnus-kill-file-mode-map "\C-c\C-k\C-a" 'gnus-kill-file-kill-by-author)
4444 (define-key gnus-kill-file-mode-map "\C-c\C-a" 'gnus-kill-file-apply-buffer)
4445 (define-key gnus-kill-file-mode-map "\C-c\C-e" 'gnus-kill-file-apply-last-sexp)
4446 (define-key gnus-kill-file-mode-map "\C-c\C-c" 'gnus-kill-file-exit)
4447 (define-key gnus-kill-file-mode-map "\C-c\C-i" 'gnus-info-find-node))
4449 (defun gnus-kill-file-mode ()
4450 "Major mode for editing KILL file.
4452 In addition to Emacs-Lisp Mode, the following commands are available:
4454 \\[gnus-kill-file-kill-by-subject] Insert KILL command for current subject.
4455 \\[gnus-kill-file-kill-by-author] Insert KILL command for current author.
4456 \\[gnus-kill-file-apply-buffer] Apply current buffer to selected newsgroup.
4457 \\[gnus-kill-file-apply-last-sexp] Apply sexp before point to selected newsgroup.
4458 \\[gnus-kill-file-exit] Save file and exit editing KILL file.
4459 \\[gnus-info-find-node] Read Info about KILL file.
4461 A KILL file contains lisp expressions to be applied to a selected
4462 newsgroup. The purpose is to mark articles as read on the basis of
4463 some set of regexps. A global KILL file is applied to every newsgroup,
4464 and a local KILL file is applied to a specified newsgroup. Since a
4465 global KILL file is applied to every newsgroup, for better performance
4466 use a local one.
4468 A KILL file can contain any kind of Emacs lisp expressions expected
4469 to be evaluated in the Summary buffer. Writing lisp programs for this
4470 purpose is not so easy because the internal working of GNUS must be
4471 well-known. For this reason, GNUS provides a general function which
4472 does this easily for non-Lisp programmers.
4474 The `gnus-kill' function executes commands available in Summary Mode
4475 by their key sequences. `gnus-kill' should be called with FIELD,
4476 REGEXP and optional COMMAND and ALL. FIELD is a string representing
4477 the header field or an empty string. If FIELD is an empty string, the
4478 entire article body is searched for. REGEXP is a string which is
4479 compared with FIELD value. COMMAND is a string representing a valid
4480 key sequence in Summary Mode or Lisp expression. COMMAND is default to
4481 '(gnus-summary-mark-as-read nil \"X\"). Make sure that COMMAND is
4482 executed in the Summary buffer. If the second optional argument ALL
4483 is non-nil, the COMMAND is applied to articles which are already
4484 marked as read or unread. Articles which are marked are skipped over
4485 by default.
4487 For example, if you want to mark articles of which subjects contain
4488 the string `AI' as read, a possible KILL file may look like:
4490 (gnus-kill \"Subject\" \"AI\")
4492 If you want to mark articles with `D' instead of `X', you can use
4493 the following expression:
4495 (gnus-kill \"Subject\" \"AI\" \"d\")
4497 In this example it is assumed that the command
4498 `gnus-summary-mark-as-read-forward' is assigned to `d' in Summary Mode.
4500 It is possible to delete unnecessary headers which are marked with
4501 `X' in a KILL file as follows:
4503 (gnus-expunge \"X\")
4505 If the Summary buffer is empty after applying KILL files, GNUS will
4506 exit the selected newsgroup normally. If headers which are marked
4507 with `D' are deleted in a KILL file, it is impossible to read articles
4508 which are marked as read in the previous GNUS sessions. Marks other
4509 than `D' should be used for articles which should really be deleted.
4511 Entry to this mode calls emacs-lisp-mode-hook and
4512 gnus-kill-file-mode-hook with no arguments, if that value is non-nil."
4513 (interactive)
4514 (kill-all-local-variables)
4515 (use-local-map gnus-kill-file-mode-map)
4516 (set-syntax-table emacs-lisp-mode-syntax-table)
4517 (setq major-mode 'gnus-kill-file-mode)
4518 (setq mode-name "KILL-File")
4519 (lisp-mode-variables nil)
4520 (run-hooks 'emacs-lisp-mode-hook 'gnus-kill-file-mode-hook))
4522 (defun gnus-kill-file-edit-file (newsgroup)
4523 "Begin editing a KILL file of NEWSGROUP.
4524 If NEWSGROUP is nil, the global KILL file is selected."
4525 (interactive "sNewsgroup: ")
4526 (let ((file (gnus-newsgroup-kill-file newsgroup)))
4527 (gnus-make-directory (file-name-directory file))
4528 ;; Save current window configuration if this is first invocation.
4529 (or (and (get-file-buffer file)
4530 (get-buffer-window (get-file-buffer file)))
4531 (setq gnus-winconf-kill-file (current-window-configuration)))
4532 ;; Hack windows.
4533 (let ((buffer (find-file-noselect file)))
4534 (cond ((get-buffer-window buffer)
4535 (pop-to-buffer buffer))
4536 ((eq major-mode 'gnus-group-mode)
4537 (gnus-configure-windows '(1 0 0)) ;Take all windows.
4538 (pop-to-buffer gnus-group-buffer)
4539 (let ((gnus-summary-buffer buffer))
4540 (gnus-configure-windows '(1 1 0)) ;Split into two.
4541 (pop-to-buffer buffer)))
4542 ((eq major-mode 'gnus-summary-mode)
4543 (gnus-configure-windows 'article)
4544 (pop-to-buffer gnus-article-buffer)
4545 (bury-buffer gnus-article-buffer)
4546 (switch-to-buffer buffer))
4547 (t ;No good rules.
4548 (find-file-other-window file))
4550 (gnus-kill-file-mode)
4553 (defun gnus-kill-file-kill-by-subject ()
4554 "Insert KILL command for current subject."
4555 (interactive)
4556 (insert
4557 (format "(gnus-kill \"Subject\" %s)\n"
4558 (prin1-to-string
4559 (if gnus-current-kill-article
4560 (regexp-quote
4561 (nntp-header-subject
4562 ;; No need to speed up this command.
4563 ;;(gnus-get-header-by-number gnus-current-kill-article)
4564 (gnus-find-header-by-number gnus-newsgroup-headers
4565 gnus-current-kill-article)))
4566 "")))))
4568 (defun gnus-kill-file-kill-by-author ()
4569 "Insert KILL command for current author."
4570 (interactive)
4571 (insert
4572 (format "(gnus-kill \"From\" %s)\n"
4573 (prin1-to-string
4574 (if gnus-current-kill-article
4575 (regexp-quote
4576 (nntp-header-from
4577 ;; No need to speed up this command.
4578 ;;(gnus-get-header-by-number gnus-current-kill-article)
4579 (gnus-find-header-by-number gnus-newsgroup-headers
4580 gnus-current-kill-article)))
4581 "")))))
4583 (defun gnus-kill-file-apply-buffer ()
4584 "Apply current buffer to current newsgroup."
4585 (interactive)
4586 (if (and gnus-current-kill-article
4587 (get-buffer gnus-summary-buffer))
4588 ;; Assume newsgroup is selected.
4589 (let ((string (concat "(progn \n" (buffer-string) "\n)" )))
4590 (save-excursion
4591 (save-window-excursion
4592 (pop-to-buffer gnus-summary-buffer)
4593 (eval (car (read-from-string string))))))
4594 (ding) (message "No newsgroup is selected.")))
4596 (defun gnus-kill-file-apply-last-sexp ()
4597 "Apply sexp before point in current buffer to current newsgroup."
4598 (interactive)
4599 (if (and gnus-current-kill-article
4600 (get-buffer gnus-summary-buffer))
4601 ;; Assume newsgroup is selected.
4602 (let ((string
4603 (buffer-substring
4604 (save-excursion (forward-sexp -1) (point)) (point))))
4605 (save-excursion
4606 (save-window-excursion
4607 (pop-to-buffer gnus-summary-buffer)
4608 (eval (car (read-from-string string))))))
4609 (ding) (message "No newsgroup is selected.")))
4611 (defun gnus-kill-file-exit ()
4612 "Save a KILL file, then return to the previous buffer."
4613 (interactive)
4614 (save-buffer)
4615 (let ((killbuf (current-buffer)))
4616 ;; We don't want to return to Article buffer.
4617 (and (get-buffer gnus-article-buffer)
4618 (bury-buffer (get-buffer gnus-article-buffer)))
4619 ;; Delete the KILL file windows.
4620 (delete-windows-on killbuf)
4621 ;; Restore last window configuration if available.
4622 (and gnus-winconf-kill-file
4623 (set-window-configuration gnus-winconf-kill-file))
4624 (setq gnus-winconf-kill-file nil)
4625 ;; Kill the KILL file buffer. Suggested by tale@pawl.rpi.edu.
4626 (kill-buffer killbuf)))
4630 ;;; Utility functions
4633 ;; Basic ideas by emv@math.lsa.umich.edu (Edward Vielmetti)
4635 (defun gnus-batch-kill ()
4636 "Run batched KILL.
4637 Usage: emacs -batch -l gnus -f gnus-batch-kill NEWSGROUP ..."
4638 (if (not noninteractive)
4639 (error "gnus-batch-kill is to be used only with -batch"))
4640 (let* ((group nil)
4641 (subscribed nil)
4642 (newsrc nil)
4643 (yes-and-no
4644 (gnus-parse-n-options
4645 (apply (function concat)
4646 (mapcar (function (lambda (g) (concat g " ")))
4647 command-line-args-left))))
4648 (yes (car yes-and-no))
4649 (no (cdr yes-and-no))
4650 ;; Disable verbose message.
4651 (gnus-novice-user nil)
4652 (gnus-large-newsgroup nil)
4653 (nntp-large-newsgroup nil))
4654 ;; Eat all arguments.
4655 (setq command-line-args-left nil)
4656 ;; Startup GNUS.
4657 (gnus)
4658 ;; Apply kills to specified newsgroups in command line arguments.
4659 (setq newsrc (copy-sequence gnus-newsrc-assoc))
4660 (while newsrc
4661 (setq group (car (car newsrc)))
4662 (setq subscribed (nth 1 (car newsrc)))
4663 (setq newsrc (cdr newsrc))
4664 (if (and subscribed
4665 (not (zerop (nth 1 (gnus-gethash group gnus-unread-hashtb))))
4666 (if yes
4667 (string-match yes group) t)
4668 (or (null no)
4669 (not (string-match no group))))
4670 (progn
4671 (gnus-summary-read-group group nil t)
4672 (if (eq (current-buffer) (get-buffer gnus-summary-buffer))
4673 (gnus-summary-exit t))
4676 ;; Finally, exit Emacs.
4677 (set-buffer gnus-group-buffer)
4678 (gnus-group-exit)
4681 ;; For saving articles
4683 (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
4684 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4685 If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group/num.
4686 Otherwise, it is like ~/News/news/group/num."
4687 (let ((default
4688 (expand-file-name
4689 (concat (if gnus-use-long-file-name
4690 (gnus-capitalize-newsgroup newsgroup)
4691 (gnus-newsgroup-directory-form newsgroup))
4692 "/" (int-to-string (nntp-header-number headers)))
4693 (or gnus-article-save-directory "~/News"))))
4694 (if (and last-file
4695 (string-equal (file-name-directory default)
4696 (file-name-directory last-file))
4697 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
4698 default
4699 (or last-file default))))
4701 (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
4702 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4703 If variable `gnus-use-long-file-name' is nil, it is ~/News/news.group/num.
4704 Otherwise, it is like ~/News/news/group/num."
4705 (let ((default
4706 (expand-file-name
4707 (concat (if gnus-use-long-file-name
4708 newsgroup
4709 (gnus-newsgroup-directory-form newsgroup))
4710 "/" (int-to-string (nntp-header-number headers)))
4711 (or gnus-article-save-directory "~/News"))))
4712 (if (and last-file
4713 (string-equal (file-name-directory default)
4714 (file-name-directory last-file))
4715 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
4716 default
4717 (or last-file default))))
4719 (defun gnus-Plain-save-name (newsgroup headers &optional last-file)
4720 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4721 If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group.
4722 Otherwise, it is like ~/News/news/group/news."
4723 (or last-file
4724 (expand-file-name
4725 (if gnus-use-long-file-name
4726 (gnus-capitalize-newsgroup newsgroup)
4727 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
4728 (or gnus-article-save-directory "~/News"))))
4730 (defun gnus-plain-save-name (newsgroup headers &optional last-file)
4731 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4732 If variable `gnus-use-long-file-name' is nil, it is ~/News/news.group.
4733 Otherwise, it is like ~/News/news/group/news."
4734 (or last-file
4735 (expand-file-name
4736 (if gnus-use-long-file-name
4737 newsgroup
4738 (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
4739 (or gnus-article-save-directory "~/News"))))
4741 (defun gnus-Folder-save-name (newsgroup headers &optional last-folder)
4742 "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
4743 If variable `gnus-use-long-file-name' is nil, it is +News.group.
4744 Otherwise, it is like +news/group."
4745 (or last-folder
4746 (concat "+"
4747 (if gnus-use-long-file-name
4748 (gnus-capitalize-newsgroup newsgroup)
4749 (gnus-newsgroup-directory-form newsgroup)))))
4751 (defun gnus-folder-save-name (newsgroup headers &optional last-folder)
4752 "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
4753 If variable `gnus-use-long-file-name' is nil, it is +news.group.
4754 Otherwise, it is like +news/group."
4755 (or last-folder
4756 (concat "+"
4757 (if gnus-use-long-file-name
4758 newsgroup
4759 (gnus-newsgroup-directory-form newsgroup)))))
4761 ;; For KILL files
4763 (defun gnus-apply-kill-file ()
4764 "Apply KILL file to the current newsgroup."
4765 ;; Apply the global KILL file.
4766 (load (gnus-newsgroup-kill-file nil) t nil t)
4767 ;; And then apply the local KILL file.
4768 (load (gnus-newsgroup-kill-file gnus-newsgroup-name) t nil t))
4770 (defun gnus-Newsgroup-kill-file (newsgroup)
4771 "Return the name of a KILL file of NEWSGROUP.
4772 If NEWSGROUP is nil, return the global KILL file instead."
4773 (cond ((or (null newsgroup)
4774 (string-equal newsgroup ""))
4775 ;; The global KILL file is placed at top of the directory.
4776 (expand-file-name gnus-kill-file-name
4777 (or gnus-article-save-directory "~/News")))
4778 (gnus-use-long-file-name
4779 ;; Append ".KILL" to capitalized newsgroup name.
4780 (expand-file-name (concat (gnus-capitalize-newsgroup newsgroup)
4781 "." gnus-kill-file-name)
4782 (or gnus-article-save-directory "~/News")))
4784 ;; Place "KILL" under the hierarchical directory.
4785 (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
4786 "/" gnus-kill-file-name)
4787 (or gnus-article-save-directory "~/News")))
4790 (defun gnus-newsgroup-kill-file (newsgroup)
4791 "Return the name of a KILL file of NEWSGROUP.
4792 If NEWSGROUP is nil, return the global KILL file instead."
4793 (cond ((or (null newsgroup)
4794 (string-equal newsgroup ""))
4795 ;; The global KILL file is placed at top of the directory.
4796 (expand-file-name gnus-kill-file-name
4797 (or gnus-article-save-directory "~/News")))
4798 (gnus-use-long-file-name
4799 ;; Append ".KILL" to newsgroup name.
4800 (expand-file-name (concat newsgroup "." gnus-kill-file-name)
4801 (or gnus-article-save-directory "~/News")))
4803 ;; Place "KILL" under the hierarchical directory.
4804 (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
4805 "/" gnus-kill-file-name)
4806 (or gnus-article-save-directory "~/News")))
4809 ;; For subscribing new newsgroup
4811 (defun gnus-subscribe-randomly (newsgroup)
4812 "Subscribe new NEWSGROUP and insert it at the beginning of newsgroups."
4813 (gnus-subscribe-newsgroup newsgroup
4814 (car (car gnus-newsrc-assoc))))
4816 (defun gnus-subscribe-alphabetically (newgroup)
4817 "Subscribe new NEWSGROUP and insert it in strict alphabetic order."
4818 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
4819 (let ((groups gnus-newsrc-assoc)
4820 (before nil))
4821 (while (and (not before) groups)
4822 (if (string< newgroup (car (car groups)))
4823 (setq before (car (car groups)))
4824 (setq groups (cdr groups))))
4825 (gnus-subscribe-newsgroup newgroup before)
4828 (defun gnus-subscribe-hierarchically (newgroup)
4829 "Subscribe new NEWSGROUP and insert it in hierarchical newsgroup order."
4830 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
4831 (save-excursion
4832 (set-buffer (find-file-noselect gnus-current-startup-file))
4833 (let ((groupkey newgroup)
4834 (before nil))
4835 (while (and (not before) groupkey)
4836 (goto-char (point-min))
4837 (let ((groupkey-re
4838 (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
4839 (while (and (re-search-forward groupkey-re nil t)
4840 (progn
4841 (setq before (buffer-substring
4842 (match-beginning 1) (match-end 1)))
4843 (string< before newgroup)))
4845 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
4846 (setq groupkey
4847 (if (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
4848 (substring groupkey (match-beginning 1) (match-end 1)))))
4849 (gnus-subscribe-newsgroup newgroup before)
4852 (defun gnus-subscribe-interactively (newsgroup)
4853 "Subscribe new NEWSGROUP interactively.
4854 It is inserted in hierarchical newsgroup order if subscribed.
4855 Unless, it is killed."
4856 (if (y-or-n-p (format "Subscribe new newsgroup: %s " newsgroup))
4857 (gnus-subscribe-hierarchically newsgroup)
4858 ;; Save in kill-ring
4859 (gnus-subscribe-newsgroup newsgroup)
4860 (gnus-kill-newsgroup newsgroup)))
4862 (defun gnus-subscribe-newsgroup (newsgroup &optional next)
4863 "Subscribe new NEWSGROUP.
4864 If optional argument NEXT is non-nil, it is inserted before NEXT."
4865 (gnus-insert-newsgroup (list newsgroup t) next)
4866 (message "Subscribe newsgroup: %s" newsgroup))
4868 ;; For directories
4870 (defun gnus-newsgroup-directory-form (newsgroup)
4871 "Make hierarchical directory name from NEWSGROUP name."
4872 (let ((newsgroup (substring newsgroup 0)) ;Copy string.
4873 (len (length newsgroup))
4874 (idx 0))
4875 ;; Replace all occurrences of `.' with `/'.
4876 (while (< idx len)
4877 (if (= (aref newsgroup idx) ?.)
4878 (aset newsgroup idx ?/))
4879 (setq idx (1+ idx)))
4880 newsgroup
4883 (defun gnus-make-directory (directory)
4884 "Make DIRECTORY recursively."
4885 (let ((directory (expand-file-name directory default-directory)))
4886 (or (file-exists-p directory)
4887 (gnus-make-directory-1 "" directory))
4890 (defun gnus-make-directory-1 (head tail)
4891 (cond ((string-match "^/\\([^/]+\\)" tail)
4892 ;; ange-ftp interferes with calling match-* after
4893 ;; calling file-name-as-directory.
4894 (let ((beg (match-beginning 1))
4895 (end (match-end 1)))
4896 (setq head (concat (file-name-as-directory head)
4897 (substring tail beg end)))
4898 (or (file-exists-p head)
4899 (call-process "mkdir" nil nil nil head))
4900 (gnus-make-directory-1 head (substring tail end))))
4901 ((string-equal tail "") t)
4904 (defun gnus-capitalize-newsgroup (newsgroup)
4905 "Capitalize NEWSGROUP name with treating '.' and '-' as part of words."
4906 ;; Suggested by "Jonathan I. Kamens" <jik@pit-manager.MIT.EDU>.
4907 (let ((current-syntax-table (copy-syntax-table (syntax-table))))
4908 (unwind-protect
4909 (progn
4910 (modify-syntax-entry ?- "w")
4911 (modify-syntax-entry ?. "w")
4912 (capitalize newsgroup))
4913 (set-syntax-table current-syntax-table))))
4915 (defun gnus-simplify-subject (subject &optional re-only)
4916 "Remove `Re:' and words in parentheses.
4917 If optional argument RE-ONLY is non-nil, strip `Re:' only."
4918 (let ((case-fold-search t)) ;Ignore case.
4919 ;; Remove `Re:' and `Re^N:'.
4920 (if (string-match "\\`\\(re\\(\\^[0-9]+\\)?:[ \t]+\\)+" subject)
4921 (setq subject (substring subject (match-end 0))))
4922 ;; Remove words in parentheses from end.
4923 (or re-only
4924 (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
4925 (setq subject (substring subject 0 (match-beginning 0)))))
4926 ;; Return subject string.
4927 subject
4930 (defun gnus-optional-lines-and-from (header)
4931 "Return a string like `NNN:AUTHOR' from HEADER."
4932 (let ((name-length (length "umerin@photon")))
4933 (substring (format "%3d:%s"
4934 ;; Lines of the article.
4935 ;; Suggested by dana@bellcore.com.
4936 (nntp-header-lines header)
4937 ;; Its author.
4938 (concat (mail-strip-quoted-names
4939 (nntp-header-from header))
4940 (make-string name-length ? )))
4941 ;; 4 stands for length of `NNN:'.
4942 0 (+ 4 name-length))))
4944 (defun gnus-optional-lines (header)
4945 "Return a string like `NNN' from HEADER."
4946 (format "%4d" (nntp-header-lines header)))
4948 ;; Basic ideas by flee@cs.psu.edu (Felix Lee)
4950 (defun gnus-keysort-headers (predicate key &optional reverse)
4951 "Sort current headers by PREDICATE using a value passed by KEY safely.
4952 *Safely* means C-g quitting is disabled during sort.
4953 Optional argument REVERSE means reverse order."
4954 (let ((inhibit-quit t))
4955 (setq gnus-newsgroup-headers
4956 (if reverse
4957 (nreverse
4958 (gnus-keysort (nreverse gnus-newsgroup-headers) predicate key))
4959 (gnus-keysort gnus-newsgroup-headers predicate key)))
4960 ;; Make sure we don't have to call
4961 ;; gnus-clear-hashtables-for-newsgroup-headers to clear hash
4962 ;; tables for the variable gnus-newsgroup-headers since no new
4963 ;; entry is added to nor deleted from the variable.
4966 (defun gnus-keysort (list predicate key)
4967 "Sort LIST by PREDICATE using a value passed by KEY."
4968 (mapcar (function cdr)
4969 (sort (mapcar (function (lambda (a) (cons (funcall key a) a))) list)
4970 (function (lambda (a b)
4971 (funcall predicate (car a) (car b)))))))
4973 (defun gnus-sort-headers (predicate &optional reverse)
4974 "Sort current headers by PREDICATE safely.
4975 *Safely* means C-g quitting is disabled during sort.
4976 Optional argument REVERSE means reverse order."
4977 (let ((inhibit-quit t))
4978 (setq gnus-newsgroup-headers
4979 (if reverse
4980 (nreverse (sort (nreverse gnus-newsgroup-headers) predicate))
4981 (sort gnus-newsgroup-headers predicate)))
4982 ;; Make sure we don't have to call
4983 ;; gnus-clear-hashtables-for-newsgroup-headers to clear hash
4984 ;; tables for the variable gnus-newsgroup-headers since no new
4985 ;; entry is added to nor deleted from the variable.
4988 (defun gnus-string-lessp (a b)
4989 "Return T if first arg string is less than second in lexicographic order.
4990 If case-fold-search is non-nil, case of letters is ignored."
4991 (if case-fold-search
4992 (string-lessp (downcase a) (downcase b))
4993 (string-lessp a b)))
4995 (defun gnus-date-lessp (date1 date2)
4996 "Return T if DATE1 is earlyer than DATE2."
4997 (string-lessp (gnus-sortable-date date1)
4998 (gnus-sortable-date date2)))
5000 (defun gnus-sortable-date (date)
5001 "Make sortable string by string-lessp from DATE.
5002 Timezone package is used."
5003 (let* ((date (timezone-parse-date date)) ;[Y M D T]
5004 (year (string-to-int (aref date 0)))
5005 (month (string-to-int (aref date 1)))
5006 (day (string-to-int (aref date 2)))
5007 (time (aref date 3))) ;HH:MM:SS
5008 ;; Timezone package is used. But, we don't have to care about
5009 ;; the timezone since article's timezones are always GMT.
5010 (timezone-make-sortable-date year month day time)
5013 ;;(defun gnus-sortable-date (date)
5014 ;; "Make sortable string by string-lessp from DATE."
5015 ;; (let ((month '(("JAN" . " 1")("FEB" . " 2")("MAR" . " 3")
5016 ;; ("APR" . " 4")("MAY" . " 5")("JUN" . " 6")
5017 ;; ("JUL" . " 7")("AUG" . " 8")("SEP" . " 9")
5018 ;; ("OCT" . "10")("NOV" . "11")("DEC" . "12")))
5019 ;; (date (or date "")))
5020 ;; ;; Can understand the following styles:
5021 ;; ;; (1) 14 Apr 89 03:20:12 GMT
5022 ;; ;; (2) Fri, 17 Mar 89 4:01:33 GMT
5023 ;; (if (string-match
5024 ;; "\\([0-9]+\\) \\([^ ,]+\\) \\([0-9]+\\) \\([0-9:]+\\)" date)
5025 ;; (concat
5026 ;; ;; Year
5027 ;; (substring date (match-beginning 3) (match-end 3))
5028 ;; ;; Month
5029 ;; (cdr
5030 ;; (assoc
5031 ;; (upcase (substring date (match-beginning 2) (match-end 2))) month))
5032 ;; ;; Day
5033 ;; (format "%2d" (string-to-int
5034 ;; (substring date
5035 ;; (match-beginning 1) (match-end 1))))
5036 ;; ;; Time
5037 ;; (substring date (match-beginning 4) (match-end 4)))
5038 ;; ;; Cannot understand DATE string.
5039 ;; date
5040 ;; )
5041 ;; ))
5043 (defun gnus-fetch-field (field)
5044 "Return the value of the header FIELD of current article."
5045 (save-excursion
5046 (save-restriction
5047 (widen)
5048 (goto-char (point-min))
5049 (narrow-to-region (point-min)
5050 (progn (search-forward "\n\n" nil 'move) (point)))
5051 (mail-fetch-field field))))
5053 (fset 'gnus-expunge 'gnus-summary-delete-marked-with)
5055 (defun gnus-kill (field regexp &optional command all)
5056 "If FIELD of an article matches REGEXP, execute COMMAND.
5057 Optional 1st argument COMMAND is default to
5058 (gnus-summary-mark-as-read nil \"X\").
5059 If optional 2nd argument ALL is non-nil, articles marked are also applied to.
5060 If FIELD is an empty string (or nil), entire article body is searched for.
5061 COMMAND must be a lisp expression or a string representing a key sequence."
5062 ;; We don't want to change current point nor window configuration.
5063 (save-excursion
5064 (save-window-excursion
5065 ;; Selected window must be Summary buffer to execute keyboard
5066 ;; macros correctly. See command_loop_1.
5067 (switch-to-buffer gnus-summary-buffer 'norecord)
5068 (goto-char (point-min)) ;From the beginning.
5069 (if (null command)
5070 (setq command '(gnus-summary-mark-as-read nil "X")))
5071 (gnus-execute field regexp command nil (not all))
5074 (defun gnus-execute (field regexp form &optional backward ignore-marked)
5075 "If FIELD of article header matches REGEXP, execute lisp FORM (or a string).
5076 If FIELD is an empty string (or nil), entire article body is searched for.
5077 If optional 1st argument BACKWARD is non-nil, do backward instead.
5078 If optional 2nd argument IGNORE-MARKED is non-nil, articles which are
5079 marked as read or unread are ignored."
5080 (let ((function nil)
5081 (header nil)
5082 (article nil))
5083 (if (string-equal field "")
5084 (setq field nil))
5085 (if (null field)
5087 (or (stringp field)
5088 (setq field (symbol-name field)))
5089 ;; Get access function of header filed.
5090 (setq function (intern-soft (concat "gnus-header-" (downcase field))))
5091 (if (and function (fboundp function))
5092 (setq function (symbol-function function))
5093 (error "Unknown header field: \"%s\"" field)))
5094 ;; Make FORM funcallable.
5095 (if (and (listp form) (not (eq (car form) 'lambda)))
5096 (setq form (list 'lambda nil form)))
5097 ;; Starting from the current article.
5098 (or (and ignore-marked
5099 ;; Articles marked as read and unread should be ignored.
5100 (setq article (gnus-summary-article-number))
5101 (or (not (memq article gnus-newsgroup-unreads)) ;Marked as read.
5102 (memq article gnus-newsgroup-marked) ;Marked as unread.
5104 (gnus-execute-1 function regexp form))
5105 (while (gnus-summary-search-subject backward ignore-marked nil)
5106 (gnus-execute-1 function regexp form))
5109 (defun gnus-execute-1 (function regexp form)
5110 (save-excursion
5111 ;; The point of Summary buffer must be saved during execution.
5112 (let ((article (gnus-summary-article-number)))
5113 (if (null article)
5114 nil ;Nothing to do.
5115 (if function
5116 ;; Compare with header field.
5117 (let (;;(header (gnus-find-header-by-number
5118 ;; gnus-newsgroup-headers article))
5119 (header (gnus-get-header-by-number article))
5120 (value nil))
5121 (and header
5122 (progn
5123 (setq value (funcall function header))
5124 ;; Number (Lines:) or symbol must be converted to string.
5125 (or (stringp value)
5126 (setq value (prin1-to-string value)))
5127 (string-match regexp value))
5128 (if (stringp form) ;Keyboard macro.
5129 (execute-kbd-macro form)
5130 (funcall form))))
5131 ;; Search article body.
5132 (let ((gnus-current-article nil) ;Save article pointer.
5133 (gnus-last-article nil)
5134 (gnus-break-pages nil) ;No need to break pages.
5135 (gnus-mark-article-hook nil)) ;Inhibit marking as read.
5136 (message "Searching for article: %d..." article)
5137 (gnus-article-setup-buffer)
5138 (gnus-article-prepare article t)
5139 (if (save-excursion
5140 (set-buffer gnus-article-buffer)
5141 (goto-char (point-min))
5142 (re-search-forward regexp nil t))
5143 (if (stringp form) ;Keyboard macro.
5144 (execute-kbd-macro form)
5145 (funcall form))))
5149 ;;; caesar-region written by phr@prep.ai.mit.edu Nov 86
5150 ;;; modified by tower@prep Nov 86
5151 ;;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
5153 (defun gnus-caesar-region (&optional n)
5154 "Caesar rotation of region by N, default 13, for decrypting netnews.
5155 ROT47 will be performed for Japanese text in any case."
5156 (interactive (if current-prefix-arg ; Was there a prefix arg?
5157 (list (prefix-numeric-value current-prefix-arg))
5158 (list nil)))
5159 (cond ((not (numberp n)) (setq n 13))
5160 (t (setq n (mod n 26)))) ;canonicalize N
5161 (if (not (zerop n)) ; no action needed for a rot of 0
5162 (progn
5163 (if (or (not (boundp 'caesar-translate-table))
5164 (/= (aref caesar-translate-table ?a) (+ ?a n)))
5165 (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
5166 (message "Building caesar-translate-table...")
5167 (setq caesar-translate-table (make-vector 256 0))
5168 (while (< i 256)
5169 (aset caesar-translate-table i i)
5170 (setq i (1+ i)))
5171 (setq lower (concat lower lower) upper (upcase lower) i 0)
5172 (while (< i 26)
5173 (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
5174 (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
5175 (setq i (1+ i)))
5176 ;; ROT47 for Japanese text.
5177 ;; Thanks to ichikawa@flab.fujitsu.junet.
5178 (setq i 161)
5179 (let ((t1 (logior ?O 128))
5180 (t2 (logior ?! 128))
5181 (t3 (logior ?~ 128)))
5182 (while (< i 256)
5183 (aset caesar-translate-table i
5184 (let ((v (aref caesar-translate-table i)))
5185 (if (<= v t1) (if (< v t2) v (+ v 47))
5186 (if (<= v t3) (- v 47) v))))
5187 (setq i (1+ i))))
5188 (message "Building caesar-translate-table... done")))
5189 (let ((from (region-beginning))
5190 (to (region-end))
5191 (i 0) str len)
5192 (setq str (buffer-substring from to))
5193 (setq len (length str))
5194 (while (< i len)
5195 (aset str i (aref caesar-translate-table (aref str i)))
5196 (setq i (1+ i)))
5197 (goto-char from)
5198 (delete-region from to)
5199 (insert str)))))
5201 ;; Functions accessing headers.
5202 ;; Functions are more convenient than macros in some case.
5204 (defun gnus-header-number (header)
5205 "Return article number in HEADER."
5206 (nntp-header-number header))
5208 (defun gnus-header-subject (header)
5209 "Return subject string in HEADER."
5210 (nntp-header-subject header))
5212 (defun gnus-header-from (header)
5213 "Return author string in HEADER."
5214 (nntp-header-from header))
5216 (defun gnus-header-xref (header)
5217 "Return xref string in HEADER."
5218 (nntp-header-xref header))
5220 (defun gnus-header-lines (header)
5221 "Return lines in HEADER."
5222 (nntp-header-lines header))
5224 (defun gnus-header-date (header)
5225 "Return date in HEADER."
5226 (nntp-header-date header))
5228 (defun gnus-header-id (header)
5229 "Return Id in HEADER."
5230 (nntp-header-id header))
5232 (defun gnus-header-references (header)
5233 "Return references in HEADER."
5234 (nntp-header-references header))
5238 ;;; Article savers.
5241 (defun gnus-output-to-rmail (file-name)
5242 "Append the current article to an Rmail file named FILE-NAME."
5243 (require 'rmail)
5244 ;; Most of these codes are borrowed from rmailout.el.
5245 (setq file-name (expand-file-name file-name))
5246 (setq rmail-last-rmail-file file-name)
5247 (let ((artbuf (current-buffer))
5248 (tmpbuf (get-buffer-create " *GNUS-output*")))
5249 (save-excursion
5250 (or (get-file-buffer file-name)
5251 (file-exists-p file-name)
5252 (if (yes-or-no-p
5253 (concat "\"" file-name "\" does not exist, create it? "))
5254 (let ((file-buffer (create-file-buffer file-name)))
5255 (save-excursion
5256 (set-buffer file-buffer)
5257 (rmail-insert-rmail-file-header)
5258 (let ((require-final-newline nil))
5259 (write-region (point-min) (point-max) file-name t 1)))
5260 (kill-buffer file-buffer))
5261 (error "Output file does not exist")))
5262 (set-buffer tmpbuf)
5263 (buffer-flush-undo (current-buffer))
5264 (erase-buffer)
5265 (insert-buffer-substring artbuf)
5266 (gnus-convert-article-to-rmail)
5267 ;; Decide whether to append to a file or to an Emacs buffer.
5268 (let ((outbuf (get-file-buffer file-name)))
5269 (if (not outbuf)
5270 (append-to-file (point-min) (point-max) file-name)
5271 ;; File has been visited, in buffer OUTBUF.
5272 (set-buffer outbuf)
5273 (let ((buffer-read-only nil)
5274 (msg (and (boundp 'rmail-current-message)
5275 rmail-current-message)))
5276 ;; If MSG is non-nil, buffer is in RMAIL mode.
5277 (if msg
5278 (progn (widen)
5279 (narrow-to-region (point-max) (point-max))))
5280 (insert-buffer-substring tmpbuf)
5281 (if msg
5282 (progn
5283 (goto-char (point-min))
5284 (widen)
5285 (search-backward "\^_")
5286 (narrow-to-region (point) (point-max))
5287 (goto-char (1+ (point-min)))
5288 (rmail-count-new-messages t)
5289 (rmail-show-message msg))))))
5291 (kill-buffer tmpbuf)
5294 (defun gnus-output-to-file (file-name)
5295 "Append the current article to a file named FILE-NAME."
5296 (setq file-name (expand-file-name file-name))
5297 (let ((artbuf (current-buffer))
5298 (tmpbuf (get-buffer-create " *GNUS-output*")))
5299 (save-excursion
5300 (set-buffer tmpbuf)
5301 (buffer-flush-undo (current-buffer))
5302 (erase-buffer)
5303 (insert-buffer-substring artbuf)
5304 ;; Append newline at end of the buffer as separator, and then
5305 ;; save it to file.
5306 (goto-char (point-max))
5307 (insert "\n")
5308 (append-to-file (point-min) (point-max) file-name))
5309 (kill-buffer tmpbuf)
5312 (defun gnus-convert-article-to-rmail ()
5313 "Convert article in current buffer to Rmail message format."
5314 (let ((buffer-read-only nil))
5315 ;; Convert article directly into Babyl format.
5316 ;; Suggested by Rob Austein <sra@lcs.mit.edu>
5317 (goto-char (point-min))
5318 (insert "\^L\n0, unseen,,\n*** EOOH ***\n")
5319 (while (search-forward "\n\^_" nil t) ;single char
5320 (replace-match "\n^_")) ;2 chars: "^" and "_"
5321 (goto-char (point-max))
5322 (insert "\^_")))
5324 ;;(defun gnus-convert-article-to-rmail ()
5325 ;; "Convert article in current buffer to Rmail message format."
5326 ;; (let ((buffer-read-only nil))
5327 ;; ;; Insert special header of Unix mail.
5328 ;; (goto-char (point-min))
5329 ;; (insert "From "
5330 ;; (or (mail-strip-quoted-names (mail-fetch-field "from"))
5331 ;; "unknown")
5332 ;; " " (current-time-string) "\n")
5333 ;; ;; Stop quoting `From' since this seems unnecessary in most cases.
5334 ;; ;; ``Quote'' "\nFrom " as "\n>From "
5335 ;; ;;(while (search-forward "\nFrom " nil t)
5336 ;; ;; (forward-char -5)
5337 ;; ;; (insert ?>))
5338 ;; ;; Convert article to babyl format.
5339 ;; (rmail-convert-to-babyl-format)
5340 ;; ))
5344 ;;; Internal functions.
5347 (defun gnus-start-news-server (&optional confirm)
5348 "Open network stream to remote NNTP server.
5349 If optional argument CONFIRM is non-nil, ask you host that NNTP server
5350 is running even if it is defined.
5351 Run gnus-open-server-hook just before opening news server."
5352 (if (gnus-server-opened)
5353 ;; Stream is already opened.
5355 ;; Open NNTP server.
5356 (if (or confirm
5357 (null gnus-nntp-server))
5358 ;; If someone has set the service to nil, then this should always
5359 ;; be the local host.
5360 (if gnus-nntp-service
5361 (if (and (boundp 'gnus-secondary-servers) gnus-secondary-servers)
5362 ;; Read server name with completion.
5363 (setq gnus-nntp-server
5364 (completing-read "NNTP server: "
5365 (cons (list gnus-nntp-server)
5366 gnus-secondary-servers)
5367 nil nil gnus-nntp-server))
5368 (setq gnus-nntp-server
5369 (read-string "NNTP server: " gnus-nntp-server)))
5370 (setq gnus-nntp-server "")))
5371 ;; If no server name is given, local host is assumed.
5372 (if (or (string-equal gnus-nntp-server "")
5373 (string-equal gnus-nntp-server "::")) ;RMS preference.
5374 (setq gnus-nntp-server (system-name)))
5375 ;; gnus-nntp-server must be either (system-name), ':DIRECTORY', or
5376 ;; nntp server name. I mean '::' cannot be a value of
5377 ;; gnus-nntp-server.
5378 (cond ((and (null gnus-nntp-service)
5379 (string-equal gnus-nntp-server (system-name)))
5380 (require 'nnspool)
5381 (gnus-define-access-method 'nnspool)
5382 (message "Looking up local news spool..."))
5383 ((string-match ":" gnus-nntp-server)
5384 ;; :DIRECTORY
5385 (require 'mhspool)
5386 (gnus-define-access-method 'mhspool)
5387 (message "Looking up private directory..."))
5389 (gnus-define-access-method 'nntp)
5390 (message "Connecting to NNTP server on %s..." gnus-nntp-server)))
5391 (run-hooks 'gnus-open-server-hook)
5392 (cond ((gnus-server-opened) ;Maybe opened in gnus-open-server-hook.
5393 (message ""))
5394 ((gnus-open-server gnus-nntp-server gnus-nntp-service)
5395 (message ""))
5397 (error
5398 (gnus-nntp-message
5399 (format "Cannot open NNTP server on %s" gnus-nntp-server)))))
5402 ;; Dummy functions used only once. Should return nil.
5403 (defun gnus-server-opened () nil)
5404 (defun gnus-close-server () nil)
5406 (defun gnus-nntp-message (&optional message)
5407 "Return a message returned from NNTP server.
5408 If no message is available and optional MESSAGE is given, return it."
5409 (let ((status (gnus-status-message))
5410 (message (or message "")))
5411 (if (and (stringp status)
5412 (> (length status) 0))
5413 status message)))
5415 (defun gnus-define-access-method (method &optional access-methods)
5416 "Define access functions for the access METHOD.
5417 Methods definition is taken from optional argument ACCESS-METHODS or
5418 the variable gnus-access-methods."
5419 (let ((bindings
5420 (cdr (assoc method (or access-methods gnus-access-methods)))))
5421 (if (null bindings)
5422 (error "Unknown access method: %s" method)
5423 ;; Should not use symbol-function here since overload does not work.
5424 (while bindings
5425 ;; Alist syntax is different from that of 3.14.3.
5426 (fset (car (car bindings)) (car (cdr (car bindings))))
5427 (setq bindings (cdr bindings)))
5430 (defun gnus-select-newsgroup (group &optional show-all)
5431 "Select newsgroup GROUP.
5432 If optional argument SHOW-ALL is non-nil, all of articles in the group
5433 are selected."
5434 ;; Make sure a connection to NNTP server is alive.
5435 (gnus-start-news-server)
5436 (if (gnus-request-group group)
5437 (let ((articles nil))
5438 (setq gnus-newsgroup-name group)
5439 (setq gnus-newsgroup-unreads
5440 (gnus-uncompress-sequence
5441 (nthcdr 2 (gnus-gethash group gnus-unread-hashtb))))
5442 (cond (show-all
5443 ;; Select all active articles.
5444 (setq articles
5445 (gnus-uncompress-sequence
5446 (nthcdr 2 (gnus-gethash group gnus-active-hashtb)))))
5448 ;; Select unread articles only.
5449 (setq articles gnus-newsgroup-unreads)))
5450 ;; Require confirmation if selecting large newsgroup.
5451 (setq gnus-newsgroup-unselected nil)
5452 (if (not (numberp gnus-large-newsgroup))
5454 (let ((selected nil)
5455 (number (length articles)))
5456 (if (> number gnus-large-newsgroup)
5457 (progn
5458 (condition-case ()
5459 (let ((input
5460 (read-string
5461 (format
5462 "How many articles from %s (default %d): "
5463 gnus-newsgroup-name number))))
5464 (setq selected
5465 (if (string-equal input "")
5466 number (string-to-int input))))
5467 (quit
5468 (setq selected 0)))
5469 (cond ((and (> selected 0)
5470 (< selected number))
5471 ;; Select last N articles.
5472 (setq articles (nthcdr (- number selected) articles)))
5473 ((and (< selected 0)
5474 (< (- 0 selected) number))
5475 ;; Select first N articles.
5476 (setq selected (- 0 selected))
5477 (setq articles (copy-sequence articles))
5478 (setcdr (nthcdr (1- selected) articles) nil))
5479 ((zerop selected)
5480 (setq articles nil))
5481 ;; Otherwise select all.
5483 ;; Get unselected unread articles.
5484 (setq gnus-newsgroup-unselected
5485 (gnus-set-difference gnus-newsgroup-unreads articles))
5488 ;; Get headers list.
5489 (setq gnus-newsgroup-headers (gnus-retrieve-headers articles))
5490 ;; UNREADS may contain expired articles, so we have to remove
5491 ;; them from the list.
5492 (setq gnus-newsgroup-unreads
5493 (gnus-intersection gnus-newsgroup-unreads
5494 (mapcar
5495 (function
5496 (lambda (header)
5497 (nntp-header-number header)))
5498 gnus-newsgroup-headers)))
5499 ;; Marked article must be a subset of unread articles.
5500 (setq gnus-newsgroup-marked
5501 (gnus-intersection (append gnus-newsgroup-unselected
5502 gnus-newsgroup-unreads)
5503 (cdr
5504 (gnus-gethash group gnus-marked-hashtb))))
5505 ;; First and last article in this newsgroup.
5506 (setq gnus-newsgroup-begin
5507 (if gnus-newsgroup-headers
5508 (nntp-header-number (car gnus-newsgroup-headers))
5511 (setq gnus-newsgroup-end
5512 (if gnus-newsgroup-headers
5513 (nntp-header-number
5514 (gnus-last-element gnus-newsgroup-headers))
5517 ;; File name that an article was saved last.
5518 (setq gnus-newsgroup-last-rmail nil)
5519 (setq gnus-newsgroup-last-mail nil)
5520 (setq gnus-newsgroup-last-folder nil)
5521 (setq gnus-newsgroup-last-file nil)
5522 ;; Reset article pointer etc.
5523 (setq gnus-current-article nil)
5524 (setq gnus-current-headers nil)
5525 (setq gnus-current-history nil)
5526 (setq gnus-have-all-headers nil)
5527 (setq gnus-last-article nil)
5528 ;; Clear old hash tables for the variable gnus-newsgroup-headers.
5529 (gnus-clear-hashtables-for-newsgroup-headers)
5530 ;; GROUP is successfully selected.
5535 ;; Hacking for making header search much faster.
5537 (defun gnus-get-header-by-number (number)
5538 "Return a header specified by a NUMBER.
5539 If the variable gnus-newsgroup-headers is updated, the hashed table
5540 gnus-newsgroup-headers-hashtb-by-number must be set to nil to indicate
5541 rehash is necessary."
5542 (or gnus-newsgroup-headers-hashtb-by-number
5543 (gnus-make-headers-hashtable-by-number))
5544 (gnus-gethash (int-to-string number)
5545 gnus-newsgroup-headers-hashtb-by-number))
5547 (defun gnus-get-header-by-id (id)
5548 "Return a header specified by an ID.
5549 If the variable gnus-newsgroup-headers is updated, the hashed table
5550 gnus-newsgroup-headers-hashtb-by-id must be set to nil to indicate
5551 rehash is necessary."
5552 (or gnus-newsgroup-headers-hashtb-by-id
5553 (gnus-make-headers-hashtable-by-id))
5554 (and (stringp id)
5555 (gnus-gethash id gnus-newsgroup-headers-hashtb-by-id)))
5557 (defun gnus-make-headers-hashtable-by-number ()
5558 "Make hashtable for the variable gnus-newsgroup-headers by number."
5559 (let ((header nil)
5560 (headers gnus-newsgroup-headers))
5561 (setq gnus-newsgroup-headers-hashtb-by-number
5562 (gnus-make-hashtable (length headers)))
5563 (while headers
5564 (setq header (car headers))
5565 (gnus-sethash (int-to-string (nntp-header-number header))
5566 header gnus-newsgroup-headers-hashtb-by-number)
5567 (setq headers (cdr headers))
5570 (defun gnus-make-headers-hashtable-by-id ()
5571 "Make hashtable for the variable gnus-newsgroup-headers by id."
5572 (let ((header nil)
5573 (headers gnus-newsgroup-headers))
5574 (setq gnus-newsgroup-headers-hashtb-by-id
5575 (gnus-make-hashtable (length headers)))
5576 (while headers
5577 (setq header (car headers))
5578 (gnus-sethash (nntp-header-id header)
5579 header gnus-newsgroup-headers-hashtb-by-id)
5580 (setq headers (cdr headers))
5583 (defun gnus-clear-hashtables-for-newsgroup-headers ()
5584 "Clear hash tables created for the variable gnus-newsgroup-headers."
5585 (setq gnus-newsgroup-headers-hashtb-by-id nil)
5586 (setq gnus-newsgroup-headers-hashtb-by-number nil))
5588 (defun gnus-more-header-backward ()
5589 "Find new header backward."
5590 (let ((first
5591 (car (nth 2 (gnus-gethash gnus-newsgroup-name gnus-active-hashtb))))
5592 (artnum gnus-newsgroup-begin)
5593 (header nil))
5594 (while (and (not header)
5595 (> artnum first))
5596 (setq artnum (1- artnum))
5597 (setq header (car (gnus-retrieve-headers (list artnum)))))
5598 header
5601 (defun gnus-more-header-forward ()
5602 "Find new header forward."
5603 (let ((last
5604 (cdr (nth 2 (gnus-gethash gnus-newsgroup-name gnus-active-hashtb))))
5605 (artnum gnus-newsgroup-end)
5606 (header nil))
5607 (while (and (not header)
5608 (< artnum last))
5609 (setq artnum (1+ artnum))
5610 (setq header (car (gnus-retrieve-headers (list artnum)))))
5611 header
5614 (defun gnus-extend-newsgroup (header &optional backward)
5615 "Extend newsgroup selection with HEADER.
5616 Optional argument BACKWARD means extend toward backward."
5617 (if header
5618 (let ((artnum (nntp-header-number header)))
5619 (setq gnus-newsgroup-headers
5620 (if backward
5621 (cons header gnus-newsgroup-headers)
5622 (append gnus-newsgroup-headers (list header))))
5623 ;; Clear current hash tables for the variable gnus-newsgroup-headers.
5624 (gnus-clear-hashtables-for-newsgroup-headers)
5625 ;; We have to update unreads and unselected, but don't have to
5626 ;; care about gnus-newsgroup-marked.
5627 (if (memq artnum gnus-newsgroup-unselected)
5628 (setq gnus-newsgroup-unreads
5629 (cons artnum gnus-newsgroup-unreads)))
5630 (setq gnus-newsgroup-unselected
5631 (delq artnum gnus-newsgroup-unselected))
5632 (setq gnus-newsgroup-begin (min gnus-newsgroup-begin artnum))
5633 (setq gnus-newsgroup-end (max gnus-newsgroup-end artnum))
5636 (defun gnus-mark-article-as-read (article)
5637 "Remember that ARTICLE is marked as read."
5638 ;; Remove from unread and marked list.
5639 (setq gnus-newsgroup-unreads
5640 (delq article gnus-newsgroup-unreads))
5641 (setq gnus-newsgroup-marked
5642 (delq article gnus-newsgroup-marked)))
5644 (defun gnus-mark-article-as-unread (article &optional clear-mark)
5645 "Remember that ARTICLE is marked as unread.
5646 Optional argument CLEAR-MARK means ARTICLE should not be remembered
5647 that it was marked as read once."
5648 ;; Add to unread list.
5649 (or (memq article gnus-newsgroup-unreads)
5650 (setq gnus-newsgroup-unreads
5651 (cons article gnus-newsgroup-unreads)))
5652 ;; If CLEAR-MARK is non-nil, the article must be removed from marked
5653 ;; list. Otherwise, it must be added to the list.
5654 (if clear-mark
5655 (setq gnus-newsgroup-marked
5656 (delq article gnus-newsgroup-marked))
5657 (or (memq article gnus-newsgroup-marked)
5658 (setq gnus-newsgroup-marked
5659 (cons article gnus-newsgroup-marked)))))
5661 (defun gnus-clear-system ()
5662 "Clear all variables and buffer."
5663 ;; Clear GNUS variables.
5664 (let ((variables gnus-variable-list))
5665 (while variables
5666 (set (car variables) nil)
5667 (setq variables (cdr variables))))
5668 ;; Clear other internal variables.
5669 (setq gnus-newsrc-hashtb nil)
5670 (setq gnus-marked-hashtb nil)
5671 (setq gnus-killed-hashtb nil)
5672 (setq gnus-active-hashtb nil)
5673 (setq gnus-octive-hashtb nil)
5674 (setq gnus-unread-hashtb nil)
5675 (setq gnus-newsgroup-headers nil)
5676 (setq gnus-newsgroup-headers-hashtb-by-id nil)
5677 (setq gnus-newsgroup-headers-hashtb-by-number nil)
5678 ;; Kill the startup file.
5679 (and gnus-current-startup-file
5680 (get-file-buffer gnus-current-startup-file)
5681 (kill-buffer (get-file-buffer gnus-current-startup-file)))
5682 (setq gnus-current-startup-file nil)
5683 ;; Kill GNUS buffers.
5684 (let ((buffers gnus-buffer-list))
5685 (while buffers
5686 (if (get-buffer (car buffers))
5687 (kill-buffer (car buffers)))
5688 (setq buffers (cdr buffers))
5691 (defun gnus-configure-windows (action)
5692 "Configure GNUS windows according to the next ACTION.
5693 The ACTION is either a symbol, such as `summary', or a
5694 configuration list such as `(1 1 2)'. If ACTION is not a list,
5695 configuration list is got from the variable gnus-window-configuration."
5696 (let* ((windows
5697 (if (listp action)
5698 action (car (cdr (assq action gnus-window-configuration)))))
5699 (grpwin (get-buffer-window gnus-group-buffer))
5700 (subwin (get-buffer-window gnus-summary-buffer))
5701 (artwin (get-buffer-window gnus-article-buffer))
5702 (winsum nil)
5703 (height nil)
5704 (grpheight 0)
5705 (subheight 0)
5706 (artheight 0))
5707 (if (or (null windows) ;No configuration is specified.
5708 (and (eq (null grpwin)
5709 (zerop (nth 0 windows)))
5710 (eq (null subwin)
5711 (zerop (nth 1 windows)))
5712 (eq (null artwin)
5713 (zerop (nth 2 windows)))))
5714 ;; No need to change window configuration.
5716 (select-window (or grpwin subwin artwin (selected-window)))
5717 ;; First of all, compute the height of each window.
5718 (cond (gnus-use-full-window
5719 ;; Take up the entire screen.
5720 (delete-other-windows)
5721 (setq height (window-height (selected-window))))
5723 (setq height (+ (if grpwin (window-height grpwin) 0)
5724 (if subwin (window-height subwin) 0)
5725 (if artwin (window-height artwin) 0)))))
5726 ;; The Newsgroup buffer exits always. So, use it to extend the
5727 ;; Group window so as to get enough window space.
5728 (switch-to-buffer gnus-group-buffer 'norecord)
5729 (and (get-buffer gnus-summary-buffer)
5730 (delete-windows-on gnus-summary-buffer))
5731 (and (get-buffer gnus-article-buffer)
5732 (delete-windows-on gnus-article-buffer))
5733 ;; Compute expected window height.
5734 (setq winsum (apply (function +) windows))
5735 (if (not (zerop (nth 0 windows)))
5736 (setq grpheight (max window-min-height
5737 (/ (* height (nth 0 windows)) winsum))))
5738 (if (not (zerop (nth 1 windows)))
5739 (setq subheight (max window-min-height
5740 (/ (* height (nth 1 windows)) winsum))))
5741 (if (not (zerop (nth 2 windows)))
5742 (setq artheight (max window-min-height
5743 (/ (* height (nth 2 windows)) winsum))))
5744 (setq height (+ grpheight subheight artheight))
5745 (enlarge-window (max 0 (- height (window-height (selected-window)))))
5746 ;; Then split the window.
5747 (and (not (zerop artheight))
5748 (or (not (zerop grpheight))
5749 (not (zerop subheight)))
5750 (split-window-vertically (+ grpheight subheight)))
5751 (and (not (zerop grpheight))
5752 (not (zerop subheight))
5753 (split-window-vertically grpheight))
5754 ;; Then select buffers in each window.
5755 (and (not (zerop grpheight))
5756 (progn
5757 (switch-to-buffer gnus-group-buffer 'norecord)
5758 (other-window 1)))
5759 (and (not (zerop subheight))
5760 (progn
5761 (switch-to-buffer gnus-summary-buffer 'norecord)
5762 (other-window 1)))
5763 (and (not (zerop artheight))
5764 (progn
5765 ;; If Article buffer does not exist, it will be created
5766 ;; and initialized.
5767 (gnus-article-setup-buffer)
5768 (switch-to-buffer gnus-article-buffer 'norecord)))
5772 (defun gnus-find-header-by-number (headers number)
5773 "Return a header which is a element of HEADERS and has NUMBER."
5774 (let ((found nil))
5775 (while (and headers (not found))
5776 ;; We cannot use `=' to accept non-numeric NUMBER.
5777 (if (eq number (nntp-header-number (car headers)))
5778 (setq found (car headers)))
5779 (setq headers (cdr headers)))
5780 found
5783 (defun gnus-find-header-by-id (headers id)
5784 "Return a header which is a element of HEADERS and has Message-ID."
5785 (let ((found nil))
5786 (while (and headers (not found))
5787 (if (string-equal id (nntp-header-id (car headers)))
5788 (setq found (car headers)))
5789 (setq headers (cdr headers)))
5790 found
5793 (defun gnus-version ()
5794 "Version numbers of this version of GNUS."
5795 (interactive)
5796 (cond ((and (boundp 'mhspool-version) (boundp 'nnspool-version))
5797 (message "%s; %s; %s; %s"
5798 gnus-version nntp-version nnspool-version mhspool-version))
5799 ((boundp 'mhspool-version)
5800 (message "%s; %s; %s"
5801 gnus-version nntp-version mhspool-version))
5802 ((boundp 'nnspool-version)
5803 (message "%s; %s; %s"
5804 gnus-version nntp-version nnspool-version))
5806 (message "%s; %s" gnus-version nntp-version))))
5808 (defun gnus-info-find-node ()
5809 "Find Info documentation of GNUS."
5810 (interactive)
5811 (require 'info)
5812 ;; Enlarge info window if needed.
5813 (cond ((eq major-mode 'gnus-group-mode)
5814 (gnus-configure-windows '(1 0 0)) ;Take all windows.
5815 (pop-to-buffer gnus-group-buffer))
5816 ((eq major-mode 'gnus-summary-mode)
5817 (gnus-configure-windows '(0 1 0)) ;Take all windows.
5818 (pop-to-buffer gnus-summary-buffer)))
5819 (Info-goto-node (car (cdr (assq major-mode gnus-info-nodes)))))
5821 (defun gnus-overload-functions (&optional overloads)
5822 "Overload functions specified by optional argument OVERLOADS.
5823 If nothing is specified, use the variable gnus-overload-functions."
5824 (let ((defs nil)
5825 (overloads (or overloads gnus-overload-functions)))
5826 (while overloads
5827 (setq defs (car overloads))
5828 (setq overloads (cdr overloads))
5829 ;; Load file before overloading function if necessary. Make
5830 ;; sure we cannot use `require' always.
5831 (and (not (fboundp (car defs)))
5832 (car (cdr (cdr defs)))
5833 (load (car (cdr (cdr defs))) nil 'nomessage))
5834 (fset (car defs) (car (cdr defs)))
5837 (defun gnus-make-threads (newsgroup-headers)
5838 "Make conversation threads tree from NEWSGROUP-HEADERS."
5839 (let ((headers newsgroup-headers)
5840 (refer nil)
5841 (h nil)
5842 (d nil)
5843 (roots nil)
5844 (dependencies nil))
5845 ;; Make message dependency alist.
5846 (while headers
5847 (setq h (car headers))
5848 (setq headers (cdr headers))
5849 ;; Ignore invalid headers.
5850 (if (vectorp h) ;Depends on nntp.el.
5851 (progn
5852 ;; Ignore broken references, e.g "<123@a.b.c".
5853 (setq refer (nntp-header-references h))
5854 (setq d (and refer
5855 (string-match "\\(<[^<>]+>\\)[^>]*$" refer)
5856 ;; (gnus-find-header-by-id
5857 ;; newsgroup-headers
5858 ;; (substring refer (match-beginning 1) (match-end 1)))
5859 ;; In fact if the variable newsgroup-headers
5860 ;; is not 'equal' to the variable
5861 ;; gnus-newsgroup-headers, the following
5862 ;; function call may return bogus value.
5863 (gnus-get-header-by-id
5864 (substring refer (match-beginning 1) (match-end 1)))
5866 ;; Check subject equality.
5867 (or gnus-thread-ignore-subject
5868 (null d)
5869 (string-equal (gnus-simplify-subject
5870 (nntp-header-subject h) 're)
5871 (gnus-simplify-subject
5872 (nntp-header-subject d) 're))
5873 ;; H should be a thread root.
5874 (setq d nil))
5875 ;; H depends on D.
5876 (setq dependencies
5877 (cons (cons h d) dependencies))
5878 ;; H is a thread root.
5879 (if (null d)
5880 (setq roots (cons h roots)))
5883 ;; Make complete threads from the roots.
5884 ;; Note: dependencies are in reverse order, but
5885 ;; gnus-make-threads-1 processes it in reverse order again. So,
5886 ;; we don't have to worry about it.
5887 (mapcar
5888 (function
5889 (lambda (root)
5890 (gnus-make-threads-1 root dependencies))) (nreverse roots))
5893 (defun gnus-make-threads-1 (parent dependencies)
5894 (let ((children nil)
5895 (d nil)
5896 (depends dependencies))
5897 ;; Find children.
5898 (while depends
5899 (setq d (car depends))
5900 (setq depends (cdr depends))
5901 (and (cdr d)
5902 (eq (nntp-header-id parent) (nntp-header-id (cdr d)))
5903 (setq children (cons (car d) children))))
5904 ;; Go down.
5905 (cons parent
5906 (mapcar
5907 (function
5908 (lambda (child)
5909 (gnus-make-threads-1 child dependencies))) children))
5912 (defun gnus-narrow-to-page (&optional arg)
5913 "Make text outside current page invisible except for page delimiter.
5914 A numeric arg specifies to move forward or backward by that many pages,
5915 thus showing a page other than the one point was originally in."
5916 (interactive "P")
5917 (setq arg (if arg (prefix-numeric-value arg) 0))
5918 (save-excursion
5919 (forward-page -1) ;Beginning of current page.
5920 (widen)
5921 (if (> arg 0)
5922 (forward-page arg)
5923 (if (< arg 0)
5924 (forward-page (1- arg))))
5925 ;; Find the end of the page.
5926 (forward-page)
5927 ;; If we stopped due to end of buffer, stay there.
5928 ;; If we stopped after a page delimiter, put end of restriction
5929 ;; at the beginning of that line.
5930 ;; These are commented out.
5931 ;; (if (save-excursion (beginning-of-line)
5932 ;; (looking-at page-delimiter))
5933 ;; (beginning-of-line))
5934 (narrow-to-region (point)
5935 (progn
5936 ;; Find the top of the page.
5937 (forward-page -1)
5938 ;; If we found beginning of buffer, stay there.
5939 ;; If extra text follows page delimiter on same line,
5940 ;; include it.
5941 ;; Otherwise, show text starting with following line.
5942 (if (and (eolp) (not (bobp)))
5943 (forward-line 1))
5944 (point)))
5947 ;; Create hash table for alist, such as gnus-newsrc-assoc,
5948 ;; gnus-killed-assoc, and gnus-marked-assoc.
5950 (defun gnus-make-hashtable-from-alist (alist &optional hashsize)
5951 "Return hash table for ALIST.
5952 Optional argument HASHSIZE specifies the hashtable size.
5953 Hash key is a car of alist element, which must be a string."
5954 (let ((hashtb (gnus-make-hashtable (or hashsize (length alist)))))
5955 (while alist
5956 (gnus-sethash (car (car alist)) ;Newsgroup name
5957 (car alist) ;Alist element
5958 hashtb)
5959 (setq alist (cdr alist)))
5960 hashtb
5963 (defun gnus-last-element (list)
5964 "Return last element of LIST."
5965 (let ((last nil))
5966 (while list
5967 (if (null (cdr list))
5968 (setq last (car list)))
5969 (setq list (cdr list)))
5970 last
5973 (defun gnus-set-difference (list1 list2)
5974 "Return a list of elements of LIST1 that do not appear in LIST2."
5975 (let ((list1 (copy-sequence list1)))
5976 (while list2
5977 (setq list1 (delq (car list2) list1))
5978 (setq list2 (cdr list2)))
5979 list1
5982 (defun gnus-intersection (list1 list2)
5983 "Return a list of elements that appear in both LIST1 and LIST2."
5984 (let ((result nil))
5985 (while list2
5986 (if (memq (car list2) list1)
5987 (setq result (cons (car list2) result)))
5988 (setq list2 (cdr list2)))
5989 result
5994 ;;; Get information about active articles, already read articles, and
5995 ;;; still unread articles.
5998 ;; GNUS internal format of gnus-newsrc-assoc and gnus-killed-assoc:
5999 ;; (("general" t (1 . 1))
6000 ;; ("misc" t (1 . 10) (12 . 15))
6001 ;; ("test" nil (1 . 99)) ...)
6002 ;; GNUS internal format of gnus-marked-assoc:
6003 ;; (("general" 1 2 3)
6004 ;; ("misc" 2) ...)
6005 ;; GNUS internal format of gnus-active-hashtb:
6006 ;; (("general" t (1 . 1))
6007 ;; ("misc" t (1 . 10))
6008 ;; ("test" nil (1 . 99)) ...)
6009 ;; GNUS internal format of gnus-unread-hashtb:
6010 ;; (("general" 1 (1 . 1))
6011 ;; ("misc" 14 (1 . 10) (12 . 15))
6012 ;; ("test" 99 (1 . 99)) ...)
6014 (defun gnus-setup-news (&optional rawfile)
6015 "Setup news information.
6016 If optional argument RAWFILE is non-nil, force to read raw startup file."
6017 (let ((init (not (and gnus-newsrc-assoc
6018 gnus-active-hashtb
6019 gnus-unread-hashtb
6020 (not rawfile)
6021 ))))
6022 ;; We have to clear some variables to re-initialize news info.
6023 (if init
6024 (setq gnus-newsrc-assoc nil
6025 gnus-active-hashtb nil
6026 gnus-unread-hashtb nil))
6027 (gnus-read-active-file)
6028 ;; Initialize only once.
6029 (if init
6030 (progn
6031 ;; Get distributions only once.
6032 (gnus-read-distributions-file)
6033 ;; newsrc file must be read after reading active file since
6034 ;; its size is used to guess the size of gnus-newsrc-hashtb.
6035 (gnus-read-newsrc-file rawfile)
6037 (gnus-expire-marked-articles)
6038 (gnus-get-unread-articles)
6039 ;; Check new newsgroups and subscribe them.
6040 (if init
6041 (let ((new-newsgroups (gnus-find-new-newsgroups)))
6042 (while new-newsgroups
6043 (funcall gnus-subscribe-newsgroup-method (car new-newsgroups))
6044 (setq new-newsgroups (cdr new-newsgroups))
6048 (defun gnus-add-newsgroup (newsgroup)
6049 "Subscribe new NEWSGROUP safely and put it at top."
6050 (and (null (gnus-gethash newsgroup gnus-newsrc-hashtb)) ;Really new?
6051 (gnus-gethash newsgroup gnus-active-hashtb) ;Really exist?
6052 (gnus-insert-newsgroup (or (gnus-gethash newsgroup gnus-killed-hashtb)
6053 (list newsgroup t))
6054 (car (car gnus-newsrc-assoc)))))
6056 (defun gnus-find-new-newsgroups ()
6057 "Looking for new newsgroups and return names.
6058 `-n' option of options line in .newsrc file is recognized."
6059 (let ((group nil)
6060 (new-newsgroups nil))
6061 (mapatoms
6062 (function
6063 (lambda (sym)
6064 (setq group (symbol-name sym))
6065 ;; Taking account of `-n' option.
6066 (and (or (null gnus-newsrc-options-n-no)
6067 (not (string-match gnus-newsrc-options-n-no group))
6068 (and gnus-newsrc-options-n-yes
6069 (string-match gnus-newsrc-options-n-yes group)))
6070 (null (gnus-gethash group gnus-killed-hashtb)) ;Ignore killed.
6071 (null (gnus-gethash group gnus-newsrc-hashtb)) ;Really new.
6072 ;; Find new newsgroup.
6073 (setq new-newsgroups
6074 (cons group new-newsgroups)))
6076 gnus-active-hashtb)
6077 ;; Return new newsgroups.
6078 new-newsgroups
6081 (defun gnus-kill-newsgroup (group)
6082 "Kill GROUP from gnus-newsrc-assoc, .newsrc and gnus-unread-hashtb."
6083 (let ((info (gnus-gethash group gnus-newsrc-hashtb)))
6084 (if (null info)
6086 ;; Delete from gnus-newsrc-assoc and gnus-newsrc-hashtb.
6087 (setq gnus-newsrc-assoc (delq info gnus-newsrc-assoc))
6088 (gnus-sethash group nil gnus-newsrc-hashtb)
6089 ;; Add to gnus-killed-assoc and gnus-killed-hashtb.
6090 (setq gnus-killed-assoc
6091 (cons info
6092 (delq (gnus-gethash group gnus-killed-hashtb)
6093 gnus-killed-assoc)))
6094 (gnus-sethash group info gnus-killed-hashtb)
6095 ;; Clear unread hashtable.
6096 ;; Thanks cwitty@csli.Stanford.EDU (Carl Witty).
6097 (gnus-sethash group nil gnus-unread-hashtb)
6098 ;; Then delete from .newsrc
6099 (gnus-update-newsrc-buffer group 'delete)
6100 ;; Return the deleted newsrc entry.
6101 info
6104 (defun gnus-insert-newsgroup (info &optional next)
6105 "Insert newsrc INFO entry before NEXT.
6106 If optional argument NEXT is nil, appended to the last."
6107 (if (null info)
6108 (error "Invalid argument: %s" info))
6109 (let* ((group (car info)) ;Newsgroup name.
6110 (range
6111 (gnus-difference-of-range
6112 (nth 2 (gnus-gethash group gnus-active-hashtb)) (nthcdr 2 info))))
6113 ;; Check duplication.
6114 (if (gnus-gethash group gnus-newsrc-hashtb)
6115 (error "Duplicated: %s" group))
6116 ;; Insert to gnus-newsrc-assoc and gnus-newsrc-hashtb.
6117 (if (string-equal next (car (car gnus-newsrc-assoc)))
6118 (setq gnus-newsrc-assoc
6119 (cons info gnus-newsrc-assoc))
6120 (let ((found nil)
6121 (rest (cdr gnus-newsrc-assoc))
6122 (tail gnus-newsrc-assoc))
6123 ;; Seach insertion point.
6124 (while (and (not found) rest)
6125 (if (string-equal next (car (car rest)))
6126 (setq found t)
6127 (setq rest (cdr rest))
6128 (setq tail (cdr tail))
6130 ;; Find it.
6131 (if (consp tail)
6132 (setcdr tail (cons info rest))
6133 ;; gnus-newsrc-assoc must be nil.
6134 (setq gnus-newsrc-assoc
6135 (append gnus-newsrc-assoc (cons info rest))))
6137 (gnus-sethash group info gnus-newsrc-hashtb)
6138 ;; Delete from gnus-killed-assoc and gnus-killed-hashtb.
6139 (setq gnus-killed-assoc
6140 (delq (gnus-gethash group gnus-killed-hashtb) gnus-killed-assoc))
6141 (gnus-sethash group nil gnus-killed-hashtb)
6142 ;; Then insert to .newsrc.
6143 (gnus-update-newsrc-buffer group nil next)
6144 ;; Add to gnus-unread-hashtb.
6145 (gnus-sethash group
6146 (cons group ;Newsgroup name.
6147 (cons (gnus-number-of-articles range) range))
6148 gnus-unread-hashtb)
6151 (defun gnus-check-killed-newsgroups ()
6152 "Check consistency between gnus-newsrc-assoc and gnus-killed-assoc.
6153 gnus-killed-hashtb is also updated."
6154 (let ((group nil)
6155 (new-killed nil)
6156 (old-killed gnus-killed-assoc))
6157 (while old-killed
6158 (setq group (car (car old-killed)))
6159 (and (or (null gnus-newsrc-options-n-no)
6160 (not (string-match gnus-newsrc-options-n-no group))
6161 (and gnus-newsrc-options-n-yes
6162 (string-match gnus-newsrc-options-n-yes group)))
6163 (null (gnus-gethash group gnus-newsrc-hashtb)) ;No duplication.
6164 ;; Subscribed in options line and not in gnus-newsrc-assoc.
6165 (setq new-killed
6166 (cons (car old-killed) new-killed)))
6167 (setq old-killed (cdr old-killed))
6169 (setq gnus-killed-assoc (nreverse new-killed))
6170 (setq gnus-killed-hashtb
6171 (gnus-make-hashtable-from-alist gnus-killed-assoc))
6174 (defun gnus-check-bogus-newsgroups (&optional confirm)
6175 "Delete bogus newsgroups.
6176 If optional argument CONFIRM is non-nil, confirm deletion of newsgroups."
6177 (let ((group nil) ;Newsgroup name temporary used.
6178 (old-newsrc gnus-newsrc-assoc)
6179 (new-newsrc nil)
6180 (bogus nil) ;List of bogus newsgroups.
6181 (old-killed gnus-killed-assoc)
6182 (new-killed nil)
6183 (old-marked gnus-marked-assoc)
6184 (new-marked nil))
6185 (message "Checking bogus newsgroups...")
6186 ;; Update gnus-newsrc-assoc and gnus-newsrc-hashtb.
6187 (while old-newsrc
6188 (setq group (car (car old-newsrc)))
6189 (if (or (gnus-gethash group gnus-active-hashtb)
6190 (and confirm
6191 (not (y-or-n-p
6192 (format "Delete bogus newsgroup: %s " group)))))
6193 ;; Active newsgroup.
6194 (setq new-newsrc (cons (car old-newsrc) new-newsrc))
6195 ;; Found a bogus newsgroup.
6196 (setq bogus (cons group bogus)))
6197 (setq old-newsrc (cdr old-newsrc))
6199 (setq gnus-newsrc-assoc (nreverse new-newsrc))
6200 (setq gnus-newsrc-hashtb
6201 (gnus-make-hashtable-from-alist gnus-newsrc-assoc))
6202 ;; Update gnus-killed-assoc and gnus-killed-hashtb.
6203 ;; The killed newsgroups are deleted without any confirmations.
6204 (while old-killed
6205 (setq group (car (car old-killed)))
6206 (and (gnus-gethash group gnus-active-hashtb)
6207 (null (gnus-gethash group gnus-newsrc-hashtb))
6208 ;; Active and really killed newsgroup.
6209 (setq new-killed (cons (car old-killed) new-killed)))
6210 (setq old-killed (cdr old-killed))
6212 (setq gnus-killed-assoc (nreverse new-killed))
6213 (setq gnus-killed-hashtb
6214 (gnus-make-hashtable-from-alist gnus-killed-assoc))
6215 ;; Remove BOGUS from .newsrc file.
6216 (while bogus
6217 (gnus-update-newsrc-buffer (car bogus) 'delete)
6218 (setq bogus (cdr bogus)))
6219 ;; Update gnus-marked-assoc and gnus-marked-hashtb.
6220 (while old-marked
6221 (setq group (car (car old-marked)))
6222 (if (and (cdr (car old-marked)) ;Non-empty?
6223 (gnus-gethash group gnus-newsrc-hashtb)) ;Not bogus?
6224 (setq new-marked (cons (car old-marked) new-marked)))
6225 (setq old-marked (cdr old-marked)))
6226 (setq gnus-marked-assoc new-marked)
6227 (setq gnus-marked-hashtb
6228 (gnus-make-hashtable-from-alist gnus-marked-assoc))
6229 (message "Checking bogus newsgroups... done")
6232 (defun gnus-get-unread-articles ()
6233 "Compute diffs between active and read articles."
6234 (let ((read gnus-newsrc-assoc)
6235 (group-info nil)
6236 (group-name nil)
6237 (active nil)
6238 (range nil))
6239 (message "Checking new news...")
6240 (or gnus-unread-hashtb
6241 (setq gnus-unread-hashtb
6242 (gnus-make-hashtable (length gnus-active-hashtb))))
6243 (while read
6244 (setq group-info (car read)) ;About one newsgroup
6245 (setq group-name (car group-info))
6246 (setq active (nth 2 (gnus-gethash group-name gnus-active-hashtb)))
6247 (if (and gnus-octive-hashtb
6248 ;; Is nothing changed?
6249 (equal active
6250 (nth 2 (gnus-gethash group-name gnus-octive-hashtb)))
6251 ;; Is this newsgroup in the unread hash table?
6252 (gnus-gethash group-name gnus-unread-hashtb)
6254 nil ;Nothing to do.
6255 (setq range (gnus-difference-of-range active (nthcdr 2 group-info)))
6256 (gnus-sethash group-name
6257 (cons group-name ;Group name
6258 (cons (gnus-number-of-articles range)
6259 range)) ;Range of unread articles
6260 gnus-unread-hashtb)
6262 (setq read (cdr read))
6264 (message "Checking new news... done")
6267 (defun gnus-expire-marked-articles ()
6268 "Check expired article which is marked as unread."
6269 (let ((marked-assoc gnus-marked-assoc)
6270 (updated-assoc nil)
6271 (marked nil) ;Current marked info.
6272 (articles nil) ;List of marked articles.
6273 (updated nil) ;List of real marked.
6274 (begin nil))
6275 (while marked-assoc
6276 (setq marked (car marked-assoc))
6277 (setq articles (cdr marked))
6278 (setq updated nil)
6279 (setq begin
6280 (car (nth 2 (gnus-gethash (car marked) gnus-active-hashtb))))
6281 (while (and begin articles)
6282 (if (>= (car articles) begin)
6283 ;; This article is still active.
6284 (setq updated (cons (car articles) updated)))
6285 (setq articles (cdr articles)))
6286 (if updated
6287 (setq updated-assoc
6288 (cons (cons (car marked) updated) updated-assoc)))
6289 (setq marked-assoc (cdr marked-assoc)))
6290 (setq gnus-marked-assoc updated-assoc)
6291 (setq gnus-marked-hashtb
6292 (gnus-make-hashtable-from-alist gnus-marked-assoc))
6295 (defun gnus-mark-as-read-by-xref
6296 (group headers unreads &optional subscribed-only)
6297 "Mark articles as read using cross references and return updated newsgroups.
6298 Arguments are GROUP, HEADERS, UNREADS, and optional SUBSCRIBED-ONLY."
6299 (let ((xref-list nil)
6300 (header nil)
6301 (xrefs nil) ;One Xref: field info.
6302 (xref nil) ;(NEWSGROUP . ARTICLE)
6303 (gname nil) ;Newsgroup name
6304 (article nil)) ;Article number
6305 (while headers
6306 (setq header (car headers))
6307 (if (memq (nntp-header-number header) unreads)
6308 ;; This article is not yet marked as read.
6310 (setq xrefs (gnus-parse-xref-field (nntp-header-xref header)))
6311 ;; For each cross reference info. in one Xref: field.
6312 (while xrefs
6313 (setq xref (car xrefs))
6314 (setq gname (car xref)) ;Newsgroup name
6315 (setq article (cdr xref)) ;Article number
6316 (or (string-equal group gname) ;Ignore current newsgroup.
6317 ;; Ignore unsubscribed newsgroup if requested.
6318 (and subscribed-only
6319 (not (nth 1 (gnus-gethash gname gnus-newsrc-hashtb))))
6320 ;; Ignore article marked as unread.
6321 (memq article (cdr (gnus-gethash gname gnus-marked-hashtb)))
6322 (let ((group-xref (assoc gname xref-list)))
6323 (if group-xref
6324 (if (memq article (cdr group-xref))
6325 nil ;Alread marked.
6326 (setcdr group-xref (cons article (cdr group-xref))))
6327 ;; Create new assoc entry for GROUP.
6328 (setq xref-list (cons (list gname article) xref-list)))
6330 (setq xrefs (cdr xrefs))
6332 (setq headers (cdr headers)))
6333 ;; Mark cross referenced articles as read.
6334 (gnus-mark-xrefed-as-read xref-list)
6335 ;;(message "%s %s" (prin1-to-string unreads) (prin1-to-string xref-list))
6336 ;; Return list of updated group name.
6337 (mapcar (function car) xref-list)
6340 (defun gnus-parse-xref-field (xref-value)
6341 "Parse Xref: field value, and return list of `(group . article-id)'."
6342 (let ((xref-list nil)
6343 (xref-value (or xref-value "")))
6344 ;; Remove server host name.
6345 (if (string-match "^[ \t]*[^ \t,]+[ \t,]+\\(.*\\)$" xref-value)
6346 (setq xref-value (substring xref-value (match-beginning 1)))
6347 (setq xref-value nil))
6348 ;; Process each xref info.
6349 (while xref-value
6350 (if (string-match
6351 "^[ \t,]*\\([^ \t,]+\\):\\([0-9]+\\)[^0-9]*" xref-value)
6352 (progn
6353 (setq xref-list
6354 (cons
6355 (cons
6356 ;; Group name
6357 (substring xref-value (match-beginning 1) (match-end 1))
6358 ;; Article-ID
6359 (string-to-int
6360 (substring xref-value (match-beginning 2) (match-end 2))))
6361 xref-list))
6362 (setq xref-value (substring xref-value (match-end 2))))
6363 (setq xref-value nil)))
6364 ;; Return alist.
6365 xref-list
6368 (defun gnus-mark-xrefed-as-read (xrefs)
6369 "Update unread article information using XREFS alist."
6370 (let ((group nil)
6371 (idlist nil)
6372 (unread nil))
6373 (while xrefs
6374 (setq group (car (car xrefs)))
6375 (setq idlist (cdr (car xrefs)))
6376 (setq unread (gnus-uncompress-sequence
6377 (nthcdr 2 (gnus-gethash group gnus-unread-hashtb))))
6378 (while idlist
6379 (setq unread (delq (car idlist) unread))
6380 (setq idlist (cdr idlist)))
6381 (gnus-update-unread-articles group unread 'ignore)
6382 (setq xrefs (cdr xrefs))
6385 (defun gnus-update-unread-articles (group unread-list marked-list)
6386 "Update unread articles of GROUP using UNREAD-LIST and MARKED-LIST."
6387 (let ((active (nth 2 (gnus-gethash group gnus-active-hashtb)))
6388 (unread (gnus-gethash group gnus-unread-hashtb)))
6389 (if (or (null active) (null unread))
6390 ;; Ignore unknown newsgroup.
6392 ;; Update gnus-unread-hashtb.
6393 (if unread-list
6394 (setcdr (cdr unread)
6395 (gnus-compress-sequence unread-list))
6396 ;; All of the articles are read.
6397 (setcdr (cdr unread) '((0 . 0))))
6398 ;; Number of unread articles.
6399 (setcar (cdr unread)
6400 (gnus-number-of-articles (nthcdr 2 unread)))
6401 ;; Update gnus-newsrc-assoc.
6402 (if (> (car active) 0)
6403 ;; Articles from 1 to N are not active.
6404 (setq active (cons 1 (cdr active))))
6405 (setcdr (cdr (gnus-gethash group gnus-newsrc-hashtb))
6406 (gnus-difference-of-range active (nthcdr 2 unread)))
6407 ;; Update .newsrc buffer.
6408 (gnus-update-newsrc-buffer group)
6409 ;; Update gnus-marked-assoc.
6410 (if (listp marked-list) ;Includes NIL.
6411 (let ((marked (gnus-gethash group gnus-marked-hashtb)))
6412 (cond (marked ;There is an entry.
6413 (setcdr marked marked-list))
6414 (marked-list ;Non-NIL.
6415 (let ((info (cons group marked-list)))
6416 ;; hashtb must share the same cons cell.
6417 (setq gnus-marked-assoc
6418 (cons info gnus-marked-assoc))
6419 (gnus-sethash group info gnus-marked-hashtb)
6424 (defun gnus-read-active-file ()
6425 "Get active file from NNTP server."
6426 ;; Make sure a connection to NNTP server is alive.
6427 (gnus-start-news-server)
6428 (message "Reading active file...")
6429 (if (gnus-request-list) ;Get active file from server
6430 (save-excursion
6431 (set-buffer nntp-server-buffer)
6432 (gnus-active-to-gnus-format)
6433 (message "Reading active file... done"))
6434 (error "Cannot read active file from NNTP server.")))
6436 (defun gnus-active-to-gnus-format ()
6437 "Convert active file format to internal format.
6438 Lines matching gnus-ignored-newsgroups are ignored."
6439 ;; Delete unnecessary lines.
6440 (goto-char (point-min))
6441 ;;(delete-matching-lines "^to\\..*$")
6442 (delete-matching-lines gnus-ignored-newsgroups)
6443 ;; Save OLD active info.
6444 (setq gnus-octive-hashtb gnus-active-hashtb)
6445 ;; Make large enough hash table.
6446 (setq gnus-active-hashtb
6447 (gnus-make-hashtable (count-lines (point-min) (point-max))))
6448 ;; Store active file in hashtable.
6449 (goto-char (point-min))
6450 (while
6451 (re-search-forward
6452 "^\\([^ \t]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([ymn]\\).*$"
6453 nil t)
6454 (gnus-sethash
6455 (buffer-substring (match-beginning 1) (match-end 1))
6456 (list (buffer-substring (match-beginning 1) (match-end 1))
6457 (string-equal
6458 "y" (buffer-substring (match-beginning 4) (match-end 4)))
6459 (cons (string-to-int
6460 (buffer-substring (match-beginning 3) (match-end 3)))
6461 (string-to-int
6462 (buffer-substring (match-beginning 2) (match-end 2)))))
6463 gnus-active-hashtb)
6466 (defun gnus-read-newsrc-file (&optional rawfile)
6467 "Read startup FILE.
6468 If optional argument RAWFILE is non-nil, the raw startup file is read."
6469 (setq gnus-current-startup-file (gnus-make-newsrc-file gnus-startup-file))
6470 ;; Reset variables which may be included in the quick startup file.
6471 (let ((variables gnus-variable-list))
6472 (while variables
6473 (set (car variables) nil)
6474 (setq variables (cdr variables))))
6475 (let* ((newsrc-file gnus-current-startup-file)
6476 (quick-file (concat newsrc-file ".el"))
6477 (quick-loaded nil))
6478 (save-excursion
6479 ;; Prepare .newsrc buffer.
6480 (set-buffer (find-file-noselect newsrc-file))
6481 ;; It is not so good idea turning off undo.
6482 ;;(buffer-flush-undo (current-buffer))
6483 ;; Load quick .newsrc to restore gnus-marked-assoc and
6484 ;; gnus-killed-assoc even if gnus-newsrc-assoc is out of date.
6485 (condition-case nil
6486 (progn
6487 (setq quick-loaded (load quick-file t t t))
6488 ;; Recreate hashtables.
6489 (setq gnus-killed-hashtb
6490 (gnus-make-hashtable-from-alist gnus-killed-assoc))
6491 (setq gnus-marked-hashtb
6492 (gnus-make-hashtable-from-alist gnus-marked-assoc))
6494 (error nil))
6495 (cond ((and (not rawfile) ;Not forced to read the raw file.
6496 ;; .newsrc.el is newer than .newsrc.
6497 ;; Do it this way in case timestamps are identical
6498 ;; (on fast machines/disks).
6499 (not (file-newer-than-file-p newsrc-file quick-file))
6500 quick-loaded
6501 gnus-newsrc-assoc ;Really loaded?
6503 ;; We don't have to read the raw startup file.
6504 ;; gnus-newsrc-assoc may be defined in the quick startup file.
6505 ;; So, we have to define the hashtable here.
6506 (setq gnus-newsrc-hashtb
6507 (gnus-make-hashtable-from-alist gnus-newsrc-assoc)))
6509 ;; Since .newsrc file is newer than quick file, read it.
6510 (message "Reading %s..." newsrc-file)
6511 (gnus-newsrc-to-gnus-format)
6512 (gnus-check-killed-newsgroups)
6513 (message "Reading %s... Done" newsrc-file)))
6516 (defun gnus-make-newsrc-file (file)
6517 "Make server dependent file name by catenating FILE and server host name."
6518 (let* ((file (expand-file-name file nil))
6519 (real-file (concat file "-" gnus-nntp-server)))
6520 (if (file-exists-p real-file)
6521 real-file file)
6524 (defun gnus-newsrc-to-gnus-format ()
6525 "Parse current buffer as .newsrc file."
6526 (let ((newsgroup nil)
6527 (subscribe nil)
6528 (ranges nil)
6529 (subrange nil)
6530 (read-list nil))
6531 ;; We have to re-initialize these variable (except for
6532 ;; gnus-marked-assoc and gnus-killed-assoc) because quick startup
6533 ;; file may contain bogus values.
6534 (setq gnus-newsrc-options nil)
6535 (setq gnus-newsrc-options-n-yes nil)
6536 (setq gnus-newsrc-options-n-no nil)
6537 (setq gnus-newsrc-assoc nil)
6538 ;; Make large enough hash table.
6539 (setq gnus-newsrc-hashtb
6540 (gnus-make-hashtable
6541 (max (length gnus-active-hashtb)
6542 (count-lines (point-min) (point-max)))))
6543 ;; Save options line to variable.
6544 ;; Lines beginning with white spaces are treated as continuation
6545 ;; line. Refer man page of newsrc(5).
6546 (goto-char (point-min))
6547 (if (re-search-forward
6548 "^[ \t]*options[ \t]*\\(.*\\(\n[ \t]+.*\\)*\\)[ \t]*$" nil t)
6549 (progn
6550 ;; Save entire options line.
6551 (setq gnus-newsrc-options
6552 (buffer-substring (match-beginning 1) (match-end 1)))
6553 ;; Compile "-n" option.
6554 (if (string-match "\\(^\\|[ \t\n]\\)-n" gnus-newsrc-options)
6555 (let ((yes-and-no
6556 (gnus-parse-n-options
6557 (substring gnus-newsrc-options (match-end 0)))))
6558 (setq gnus-newsrc-options-n-yes (car yes-and-no))
6559 (setq gnus-newsrc-options-n-no (cdr yes-and-no))
6562 ;; Parse body of .newsrc file
6563 ;; Options line continuation lines must be also considered here.
6564 ;; Before supporting continuation lines, " newsgroup ! 1-5" was
6565 ;; okay, but now it is invalid. It should be "newsgroup! 1-5".
6566 (goto-char (point-min))
6567 ;; Due to overflows in regex.c, change the following regexp:
6568 ;; "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(.*\\)$"
6569 ;; Suggested by composer@bucsf.bu.edu (Jeff Kellem)
6570 ;; but no longer viable because of extensive backtracking in Emacs 19:
6571 ;; "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(\\(...\\)*.*\\)$"
6572 ;; but, the following causes trouble on some case:
6573 ;; "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(\\|[^ \t\n].*\\)$"
6574 (while (re-search-forward
6575 (if (= gnus-emacs-version 18)
6576 "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(\\(...\\)*.*\\)$"
6577 "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(.*\\)$")
6578 nil t)
6579 (setq newsgroup (buffer-substring (match-beginning 1) (match-end 1)))
6580 ;; Check duplications of newsgroups.
6581 ;; Note: Checking the duplications takes very long time.
6582 (if (gnus-gethash newsgroup gnus-newsrc-hashtb)
6583 (message "Ignore duplicated newsgroup: %s" newsgroup)
6584 (setq subscribe
6585 (string-equal
6586 ":" (buffer-substring (match-beginning 2) (match-end 2))))
6587 (setq ranges (buffer-substring (match-beginning 3) (match-end 3)))
6588 (setq read-list nil)
6589 (while (string-match "^[, \t]*\\([0-9-]+\\)" ranges)
6590 (setq subrange (substring ranges (match-beginning 1) (match-end 1)))
6591 (setq ranges (substring ranges (match-end 1)))
6592 (cond ((string-match "^\\([0-9]+\\)-\\([0-9]+\\)$" subrange)
6593 (setq read-list
6594 (cons
6595 (cons (string-to-int
6596 (substring subrange
6597 (match-beginning 1) (match-end 1)))
6598 (string-to-int
6599 (substring subrange
6600 (match-beginning 2) (match-end 2))))
6601 read-list)))
6602 ((string-match "^[0-9]+$" subrange)
6603 (setq read-list
6604 (cons (cons (string-to-int subrange)
6605 (string-to-int subrange))
6606 read-list)))
6608 (ding) (message "Ignoring bogus lines of %s" newsgroup)
6609 (sit-for 0))
6611 (setq gnus-newsrc-assoc
6612 (cons (cons newsgroup (cons subscribe (nreverse read-list)))
6613 gnus-newsrc-assoc))
6614 ;; Update gnus-newsrc-hashtb one by one.
6615 (gnus-sethash newsgroup (car gnus-newsrc-assoc) gnus-newsrc-hashtb)
6617 (setq gnus-newsrc-assoc (nreverse gnus-newsrc-assoc))
6620 (defun gnus-parse-n-options (options)
6621 "Parse -n NEWSGROUPS options and return a cons of YES and NO regexps."
6622 (let ((yes nil)
6623 (no nil)
6624 (yes-or-no nil) ;`!' or not.
6625 (newsgroup nil))
6626 ;; Parse each newsgroup description such as "comp.all". Commas
6627 ;; and white spaces can be a newsgroup separator.
6628 (while
6629 (string-match "^[ \t\n,]*\\(!?\\)\\([^--- \t\n,][^ \t\n,]*\\)" options)
6630 (setq yes-or-no
6631 (substring options (match-beginning 1) (match-end 1)))
6632 (setq newsgroup
6633 (regexp-quote
6634 (substring options
6635 (match-beginning 2) (match-end 2))))
6636 (setq options (substring options (match-end 2)))
6637 ;; Rewrite "all" to ".+" not ".*". ".+" requires at least one
6638 ;; character.
6639 (while (string-match "\\(^\\|\\\\[.]\\)all\\(\\\\[.]\\|$\\)" newsgroup)
6640 (setq newsgroup
6641 (concat (substring newsgroup 0 (match-end 1))
6642 ".+"
6643 (substring newsgroup (match-beginning 2)))))
6644 ;; It is yes or no.
6645 (cond ((string-equal yes-or-no "!")
6646 (setq no (cons newsgroup no)))
6647 ((string-equal newsgroup ".+")) ;Ignore `all'.
6649 (setq yes (cons newsgroup yes))))
6651 ;; Make a cons of regexps from parsing result.
6652 ;; We have to append \(\.\|$\) to prevent matching substring of
6653 ;; newsgroup. For example, "jp.net" should not match with
6654 ;; "jp.network".
6655 ;; Fixes for large regexp problems are from yonezu@nak.math.keio.ac.jp.
6656 (cons (if yes
6657 (concat "^\\("
6658 (apply (function concat)
6659 (mapcar
6660 (function
6661 (lambda (newsgroup)
6662 (concat newsgroup "\\|")))
6663 (cdr yes)))
6664 (car yes) "\\)\\(\\.\\|$\\)"))
6665 (if no
6666 (concat "^\\("
6667 (apply (function concat)
6668 (mapcar
6669 (function
6670 (lambda (newsgroup)
6671 (concat newsgroup "\\|")))
6672 (cdr no)))
6673 (car no) "\\)\\(\\.\\|$\\)")))
6676 (defun gnus-save-newsrc-file ()
6677 "Save to .newsrc FILE."
6678 ;; Note: We cannot save .newsrc file if all newsgroups are removed
6679 ;; from the variable gnus-newsrc-assoc.
6680 (and (or gnus-newsrc-assoc gnus-killed-assoc)
6681 gnus-current-startup-file
6682 (save-excursion
6683 ;; A buffer containing .newsrc file may be deleted.
6684 (set-buffer (find-file-noselect gnus-current-startup-file))
6685 (if (not (buffer-modified-p))
6686 (message "(No changes need to be saved)")
6687 (message "Saving %s..." gnus-current-startup-file)
6688 (let ((make-backup-files t)
6689 (version-control nil)
6690 (require-final-newline t)) ;Don't ask even if requested.
6691 ;; Make backup file of master newsrc.
6692 ;; You can stop or change version control of backup file.
6693 ;; Suggested by jason@violet.berkeley.edu.
6694 (run-hooks 'gnus-save-newsrc-hook)
6695 (save-buffer))
6696 ;; Quickly loadable .newsrc.
6697 (set-buffer (get-buffer-create " *GNUS-newsrc*"))
6698 (buffer-flush-undo (current-buffer))
6699 (erase-buffer)
6700 (gnus-gnus-to-quick-newsrc-format)
6701 (let ((make-backup-files nil)
6702 (version-control nil)
6703 (require-final-newline t)) ;Don't ask even if requested.
6704 (write-file (concat gnus-current-startup-file ".el")))
6705 (kill-buffer (current-buffer))
6706 (message "Saving %s... Done" gnus-current-startup-file)
6710 (defun gnus-update-newsrc-buffer (group &optional delete next)
6711 "Incrementally update .newsrc buffer about GROUP.
6712 If optional 1st argument DELETE is non-nil, delete the group.
6713 If optional 2nd argument NEXT is non-nil, inserted before it."
6714 (save-excursion
6715 ;; Taking account of the killed startup file.
6716 ;; Suggested by tale@pawl.rpi.edu.
6717 (set-buffer (or (get-file-buffer gnus-current-startup-file)
6718 (find-file-noselect gnus-current-startup-file)))
6719 ;; Options line continuation lines must be also considered here.
6720 ;; Before supporting continuation lines, " newsgroup ! 1-5" was
6721 ;; okay, but now it is invalid. It should be "newsgroup! 1-5".
6722 (let ((deleted nil)
6723 (case-fold-search nil) ;Should NOT ignore case.
6724 (buffer-read-only nil)) ;May be not modifiable.
6725 ;; Delete ALL entries which match for GROUP.
6726 (goto-char (point-min))
6727 (while (re-search-forward
6728 (concat "^" (regexp-quote group) "[:!]") nil t)
6729 (beginning-of-line)
6730 (delete-region (point) (progn (forward-line 1) (point)))
6731 (setq deleted t) ;Old entry is deleted.
6733 (if delete
6735 ;; Insert group entry.
6736 (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
6737 (if (null newsrc)
6739 ;; Find insertion point.
6740 (cond (deleted nil) ;Insert here.
6741 ((and (stringp next)
6742 (progn
6743 (goto-char (point-min))
6744 (re-search-forward
6745 (concat "^" (regexp-quote next) "[:!]") nil t)))
6746 (beginning-of-line))
6748 (goto-char (point-max))
6749 (or (bolp)
6750 (insert "\n"))))
6751 ;; Insert after options line.
6752 (if (looking-at "^[ \t]*options\\([ \t]\\|$\\)")
6753 (progn
6754 (forward-line 1)
6755 ;; Skip continuation lines.
6756 (while (and (not (eobp))
6757 (looking-at "^[ \t]+"))
6758 (forward-line 1))))
6759 (insert group ;Group name
6760 (if (nth 1 newsrc) ": " "! ")) ;Subscribed?
6761 (gnus-ranges-to-newsrc-format (nthcdr 2 newsrc)) ;Read articles
6762 (insert "\n")
6766 (defun gnus-gnus-to-quick-newsrc-format ()
6767 "Insert GNUS variables such as gnus-newsrc-assoc in lisp format."
6768 (insert ";; GNUS internal format of .newsrc.\n")
6769 (insert ";; Touch .newsrc instead if you think to remove this file.\n")
6770 (let ((variable nil)
6771 (variables gnus-variable-list)
6772 ;; Temporary rebind to make changes
6773 ;; gnus-check-killed-newsgroups in invisible.
6774 (gnus-killed-assoc gnus-killed-assoc)
6775 (gnus-killed-hashtb gnus-killed-hashtb))
6776 ;; Remove duplicated or unsubscribed newsgroups in
6777 ;; gnus-killed-assoc (and gnus-killed-hashtb).
6778 (gnus-check-killed-newsgroups)
6779 ;; Then, insert lisp expressions.
6780 (while variables
6781 (setq variable (car variables))
6782 (and (boundp variable)
6783 (symbol-value variable)
6784 (insert "(setq " (symbol-name variable) " '"
6785 (prin1-to-string (symbol-value variable))
6786 ")\n"))
6787 (setq variables (cdr variables)))
6790 (defun gnus-ranges-to-newsrc-format (ranges)
6791 "Insert ranges of read articles."
6792 (let ((range nil)) ;Range is a pair of BEGIN and END.
6793 (while ranges
6794 (setq range (car ranges))
6795 (setq ranges (cdr ranges))
6796 (cond ((= (car range) (cdr range))
6797 (if (= (car range) 0)
6798 (setq ranges nil) ;No unread articles.
6799 (insert (int-to-string (car range)))
6800 (if ranges (insert ","))
6803 (insert (int-to-string (car range))
6805 (int-to-string (cdr range)))
6806 (if ranges (insert ","))
6810 (defun gnus-compress-sequence (numbers)
6811 "Convert list of sorted numbers to ranges."
6812 (let* ((numbers (sort (copy-sequence numbers) (function <)))
6813 (first (car numbers))
6814 (last (car numbers))
6815 (result nil))
6816 (while numbers
6817 (cond ((= last (car numbers)) nil) ;Omit duplicated number
6818 ((= (1+ last) (car numbers)) ;Still in sequence
6819 (setq last (car numbers)))
6820 (t ;End of one sequence
6821 (setq result (cons (cons first last) result))
6822 (setq first (car numbers))
6823 (setq last (car numbers)))
6825 (setq numbers (cdr numbers))
6827 (nreverse (cons (cons first last) result))
6830 (defun gnus-uncompress-sequence (ranges)
6831 "Expand compressed format of sequence."
6832 (let ((first nil)
6833 (last nil)
6834 (result nil))
6835 (while ranges
6836 (setq first (car (car ranges)))
6837 (setq last (cdr (car ranges)))
6838 (while (< first last)
6839 (setq result (cons first result))
6840 (setq first (1+ first)))
6841 (setq result (cons first result))
6842 (setq ranges (cdr ranges))
6844 (nreverse result)
6847 (defun gnus-number-of-articles (range)
6848 "Compute number of articles from RANGE `((beg1 . end1) (beg2 . end2) ...)'."
6849 (let ((count 0))
6850 (while range
6851 (if (/= (cdr (car range)) 0)
6852 ;; If end1 is 0, it must be skipped. Usually no articles in
6853 ;; this group.
6854 (setq count (+ count 1 (- (cdr (car range)) (car (car range))))))
6855 (setq range (cdr range))
6857 count ;Result
6860 (defun gnus-difference-of-range (src obj)
6861 "Compute (SRC - OBJ) on range.
6862 Range of SRC is expressed as `(beg . end)'.
6863 Range of OBJ is expressed as `((beg1 . end1) (beg2 . end2) ...)."
6864 (let ((beg (car src))
6865 (end (cdr src))
6866 (range nil)) ;This is result.
6867 ;; Src may be nil.
6868 (while (and src obj)
6869 (let ((beg1 (car (car obj)))
6870 (end1 (cdr (car obj))))
6871 (cond ((> beg end)
6872 (setq obj nil)) ;Terminate loop
6873 ((< beg beg1)
6874 (setq range (cons (cons beg (min (1- beg1) end)) range))
6875 (setq beg (1+ end1)))
6876 ((>= beg beg1)
6877 (setq beg (max beg (1+ end1))))
6879 (setq obj (cdr obj)) ;Next OBJ
6881 ;; Src may be nil.
6882 (if (and src (<= beg end))
6883 (setq range (cons (cons beg end) range)))
6884 ;; Result
6885 (if range
6886 (nreverse range)
6887 (list (cons 0 0)))
6890 (defun gnus-read-distributions-file ()
6891 "Get distributions file from NNTP server (NNTP2 functionality)."
6892 ;; Make sure a connection to NNTP server is alive.
6893 (gnus-start-news-server)
6894 (message "Reading distributions file...")
6895 (setq gnus-distribution-list nil)
6896 (if (gnus-request-list-distributions)
6897 (save-excursion
6898 (set-buffer nntp-server-buffer)
6899 (gnus-distributions-to-gnus-format)
6900 (message "Reading distributions file... done"))
6901 ;; It's not a fatal error.
6902 ;;(error "Cannot read distributions file from NNTP server.")
6904 ;; Merge with user supplied default distributions.
6905 (let ((defaults (reverse gnus-local-distributions))
6906 (dist nil))
6907 (while defaults
6908 (setq dist (assoc (car defaults) gnus-distribution-list))
6909 (if dist
6910 (setq gnus-distribution-list
6911 (delq dist gnus-distribution-list)))
6912 (setq gnus-distribution-list
6913 (cons (list (car defaults)) gnus-distribution-list))
6914 (setq defaults (cdr defaults))
6917 (defun gnus-distributions-to-gnus-format ()
6918 "Convert distributions file format to internal format."
6919 (setq gnus-distribution-list nil)
6920 (goto-char (point-min))
6921 (while (re-search-forward "^\\([^ \t\n]+\\).*$" nil t)
6922 (setq gnus-distribution-list
6923 (cons (list (buffer-substring (match-beginning 1) (match-end 1)))
6924 gnus-distribution-list)))
6925 (setq gnus-distribution-list
6926 (nreverse gnus-distribution-list)))
6928 ;; Some older version of GNU Emacs does not support function
6929 ;; `file-newer-than-file-p'.
6931 (or (fboundp 'file-newer-than-file-p)
6932 (defun file-newer-than-file-p (file1 file2)
6933 "Return t if file FILE1 is newer than file FILE2.
6934 If FILE1 does not exist, the answer is nil;
6935 otherwise, if FILE2 does not exist, the answer is t."
6936 (let ((mod1 (nth 5 (file-attributes file1)))
6937 (mod2 (nth 5 (file-attributes file2))))
6938 (cond ((not (file-exists-p file1)) nil)
6939 ((not (file-exists-p file2)) t)
6940 ((and mod2 mod1)
6941 (or (< (car mod2) (car mod1))
6942 (and (= (car mod2) (car mod1))
6943 (<= (nth 1 mod2) (nth 1 mod1)))))
6944 ))))
6947 ;;Local variables:
6948 ;;eval: (put 'gnus-eval-in-buffer-window 'lisp-indent-hook 1)
6949 ;;end:
6951 ;;; gnus.el ends here